From 3d071d8da1f586c24863a57349586a1611b9aa67 Mon Sep 17 00:00:00 2001 From: Stephan Mueller Date: Thu, 15 Dec 2016 12:42:33 +0100 Subject: random: remove stale maybe_reseed_primary_crng The function maybe_reseed_primary_crng is not used anywhere and thus can be removed. Signed-off-by: Stephan Mueller Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 1ef26403bcc8..8e5ab20848c0 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -855,13 +855,6 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r) spin_unlock_irqrestore(&primary_crng.lock, flags); } -static inline void maybe_reseed_primary_crng(void) -{ - if (crng_init > 2 && - time_after(jiffies, primary_crng.init_time + CRNG_RESEED_INTERVAL)) - crng_reseed(&primary_crng, &input_pool); -} - static inline void crng_wait_ready(void) { wait_event_interruptible(crng_init_wait, crng_ready()); -- cgit From 2e03c36f25ebb52d3358b8baebcdf96895c33a87 Mon Sep 17 00:00:00 2001 From: Stephan Müller Date: Tue, 27 Dec 2016 23:39:31 +0100 Subject: random: remove stale urandom_init_wait The urandom_init_wait wait queue is a left over from the pre-ChaCha20 times and can therefore be savely removed. Signed-off-by: Stephan Mueller Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 8e5ab20848c0..482531d87fb8 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -409,7 +409,6 @@ static struct poolinfo { */ static DECLARE_WAIT_QUEUE_HEAD(random_read_wait); static DECLARE_WAIT_QUEUE_HEAD(random_write_wait); -static DECLARE_WAIT_QUEUE_HEAD(urandom_init_wait); static struct fasync_struct *fasync; static DEFINE_SPINLOCK(random_ready_list_lock); -- cgit From 43d8a72cd985ca5279a9eb84d61fcbb3ee3d3774 Mon Sep 17 00:00:00 2001 From: Stephan Müller Date: Tue, 27 Dec 2016 23:40:59 +0100 Subject: random: remove variable limit The variable limit was used to identify the nonblocking pool's unlimited random number generation. As the nonblocking pool is a thing of the past, remove the limit variable and any conditions around it (i.e. preserve the branches for limit == 1). Signed-off-by: Stephan Mueller Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 30 +++++++----------------------- 1 file changed, 7 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 482531d87fb8..92d6dd24c86e 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -466,7 +466,6 @@ struct entropy_store { int entropy_count; int entropy_total; unsigned int initialized:1; - unsigned int limit:1; unsigned int last_data_init:1; __u8 last_data[EXTRACT_SIZE]; }; @@ -484,7 +483,6 @@ static __u32 blocking_pool_data[OUTPUT_POOL_WORDS] __latent_entropy; static struct entropy_store input_pool = { .poolinfo = &poolinfo_table[0], .name = "input", - .limit = 1, .lock = __SPIN_LOCK_UNLOCKED(input_pool.lock), .pool = input_pool_data }; @@ -492,7 +490,6 @@ static struct entropy_store input_pool = { static struct entropy_store blocking_pool = { .poolinfo = &poolinfo_table[1], .name = "blocking", - .limit = 1, .pull = &input_pool, .lock = __SPIN_LOCK_UNLOCKED(blocking_pool.lock), .pool = blocking_pool_data, @@ -1212,15 +1209,6 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes) r->entropy_count > r->poolinfo->poolfracbits) return; - if (r->limit == 0 && random_min_urandom_seed) { - unsigned long now = jiffies; - - if (time_before(now, - r->last_pulled + random_min_urandom_seed * HZ)) - return; - r->last_pulled = now; - } - _xfer_secondary_pool(r, nbytes); } @@ -1228,8 +1216,6 @@ static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes) { __u32 tmp[OUTPUT_POOL_WORDS]; - /* For /dev/random's pool, always leave two wakeups' worth */ - int rsvd_bytes = r->limit ? 0 : random_read_wakeup_bits / 4; int bytes = nbytes; /* pull at least as much as a wakeup */ @@ -1240,7 +1226,7 @@ static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes) trace_xfer_secondary_pool(r->name, bytes * 8, nbytes * 8, ENTROPY_BITS(r), ENTROPY_BITS(r->pull)); bytes = extract_entropy(r->pull, tmp, bytes, - random_read_wakeup_bits / 8, rsvd_bytes); + random_read_wakeup_bits / 8, 0); mix_pool_bytes(r, tmp, bytes); credit_entropy_bits(r, bytes*8); } @@ -1268,7 +1254,7 @@ static void push_to_pool(struct work_struct *work) static size_t account(struct entropy_store *r, size_t nbytes, int min, int reserved) { - int entropy_count, orig; + int entropy_count, orig, have_bytes; size_t ibytes, nfrac; BUG_ON(r->entropy_count > r->poolinfo->poolfracbits); @@ -1277,14 +1263,12 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min, retry: entropy_count = orig = ACCESS_ONCE(r->entropy_count); ibytes = nbytes; - /* If limited, never pull more than available */ - if (r->limit) { - int have_bytes = entropy_count >> (ENTROPY_SHIFT + 3); + /* never pull more than available */ + have_bytes = entropy_count >> (ENTROPY_SHIFT + 3); - if ((have_bytes -= reserved) < 0) - have_bytes = 0; - ibytes = min_t(size_t, ibytes, have_bytes); - } + if ((have_bytes -= reserved) < 0) + have_bytes = 0; + ibytes = min_t(size_t, ibytes, have_bytes); if (ibytes < min) ibytes = 0; -- cgit From 5d0e5ea343a0f70351428476bcf8715e0731f26a Mon Sep 17 00:00:00 2001 From: Stephan Müller Date: Tue, 27 Dec 2016 23:41:22 +0100 Subject: random: fix comment for unused random_min_urandom_seed The variable random_min_urandom_seed is not needed any more as it defined the reseeding behavior of the nonblocking pool. Though it is not needed any more, it is left in the code for user space interface compatibility. Signed-off-by: Stephan Mueller Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 92d6dd24c86e..9d147d456598 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -313,9 +313,7 @@ static int random_read_wakeup_bits = 64; static int random_write_wakeup_bits = 28 * OUTPUT_POOL_WORDS; /* - * The minimum number of seconds between urandom pool reseeding. We - * do this to limit the amount of entropy that can be drained from the - * input pool even if there are heavy demands on /dev/urandom. + * Variable is currently unused by left for user space compatibility. */ static int random_min_urandom_seed = 60; -- cgit From f5b98461cb8167ba362ad9f74c41d126b7becea7 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Fri, 6 Jan 2017 19:32:01 +0100 Subject: random: use chacha20 for get_random_int/long Now that our crng uses chacha20, we can rely on its speedy characteristics for replacing MD5, while simultaneously achieving a higher security guarantee. Before the idea was to use these functions if you wanted random integers that aren't stupidly insecure but aren't necessarily secure either, a vague gray zone, that hopefully was "good enough" for its users. With chacha20, we can strengthen this claim, since either we're using an rdrand-like instruction, or we're using the same crng as /dev/urandom. And it's faster than what was before. We could have chosen to replace this with a SipHash-derived function, which might be slightly faster, but at the cost of having yet another RNG construction in the kernel. By moving to chacha20, we have a single RNG to analyze and verify, and we also already get good performance improvements on all platforms. Implementation-wise, rather than use a generic buffer for both get_random_int/long and memcpy based on the size needs, we use a specific buffer for 32-bit reads and for 64-bit reads. This way, we're guaranteed to always have aligned accesses on all platforms. While slightly more verbose in C, the assembly this generates is a lot simpler than otherwise. Finally, on 32-bit platforms where longs and ints are the same size, we simply alias get_random_int to get_random_long. Signed-off-by: Jason A. Donenfeld Suggested-by: Theodore Ts'o Cc: Theodore Ts'o Cc: Hannes Frederic Sowa Cc: Andy Lutomirski Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 84 ++++++++++++++++++++++++++------------------------- 1 file changed, 43 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 9d147d456598..b800e5479b7d 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -2016,63 +2016,65 @@ struct ctl_table random_table[] = { }; #endif /* CONFIG_SYSCTL */ -static u32 random_int_secret[MD5_MESSAGE_BYTES / 4] ____cacheline_aligned; - -int random_int_secret_init(void) -{ - get_random_bytes(random_int_secret, sizeof(random_int_secret)); - return 0; -} - -static DEFINE_PER_CPU(__u32 [MD5_DIGEST_WORDS], get_random_int_hash) - __aligned(sizeof(unsigned long)); +struct batched_entropy { + union { + unsigned long entropy_long[CHACHA20_BLOCK_SIZE / sizeof(unsigned long)]; + unsigned int entropy_int[CHACHA20_BLOCK_SIZE / sizeof(unsigned int)]; + }; + unsigned int position; +}; /* - * Get a random word for internal kernel use only. Similar to urandom but - * with the goal of minimal entropy pool depletion. As a result, the random - * value is not cryptographically secure but for several uses the cost of - * depleting entropy is too high + * Get a random word for internal kernel use only. The quality of the random + * number is either as good as RDRAND or as good as /dev/urandom, with the + * goal of being quite fast and not depleting entropy. */ -unsigned int get_random_int(void) +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_long); +unsigned long get_random_long(void) { - __u32 *hash; - unsigned int ret; + unsigned long ret; + struct batched_entropy *batch; - if (arch_get_random_int(&ret)) + if (arch_get_random_long(&ret)) return ret; - hash = get_cpu_var(get_random_int_hash); - - hash[0] += current->pid + jiffies + random_get_entropy(); - md5_transform(hash, random_int_secret); - ret = hash[0]; - put_cpu_var(get_random_int_hash); - + batch = &get_cpu_var(batched_entropy_long); + if (batch->position % ARRAY_SIZE(batch->entropy_long) == 0) { + extract_crng((u8 *)batch->entropy_long); + batch->position = 0; + } + ret = batch->entropy_long[batch->position++]; + put_cpu_var(batched_entropy_long); return ret; } -EXPORT_SYMBOL(get_random_int); +EXPORT_SYMBOL(get_random_long); -/* - * Same as get_random_int(), but returns unsigned long. - */ -unsigned long get_random_long(void) +#if BITS_PER_LONG == 32 +unsigned int get_random_int(void) { - __u32 *hash; - unsigned long ret; + return get_random_long(); +} +#else +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_int); +unsigned int get_random_int(void) +{ + unsigned int ret; + struct batched_entropy *batch; - if (arch_get_random_long(&ret)) + if (arch_get_random_int(&ret)) return ret; - hash = get_cpu_var(get_random_int_hash); - - hash[0] += current->pid + jiffies + random_get_entropy(); - md5_transform(hash, random_int_secret); - ret = *(unsigned long *)hash; - put_cpu_var(get_random_int_hash); - + batch = &get_cpu_var(batched_entropy_int); + if (batch->position % ARRAY_SIZE(batch->entropy_int) == 0) { + extract_crng((u8 *)batch->entropy_int); + batch->position = 0; + } + ret = batch->entropy_int[batch->position++]; + put_cpu_var(batched_entropy_int); return ret; } -EXPORT_SYMBOL(get_random_long); +#endif +EXPORT_SYMBOL(get_random_int); /** * randomize_page - Generate a random, page aligned address -- cgit From c440408cf6901eeb2c09563397e24a9097907078 Mon Sep 17 00:00:00 2001 From: "Jason A. Donenfeld" Date: Sun, 22 Jan 2017 16:34:08 +0100 Subject: random: convert get_random_int/long into get_random_u32/u64 Many times, when a user wants a random number, he wants a random number of a guaranteed size. So, thinking of get_random_int and get_random_long in terms of get_random_u32 and get_random_u64 makes it much easier to achieve this. It also makes the code simpler. On 32-bit platforms, get_random_int and get_random_long are both aliased to get_random_u32. On 64-bit platforms, int->u32 and long->u64. Signed-off-by: Jason A. Donenfeld Cc: Greg Kroah-Hartman Cc: Theodore Ts'o Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 55 +++++++++++++++++++++++++-------------------------- 1 file changed, 27 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index b800e5479b7d..066ae125f2c8 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -2018,8 +2018,8 @@ struct ctl_table random_table[] = { struct batched_entropy { union { - unsigned long entropy_long[CHACHA20_BLOCK_SIZE / sizeof(unsigned long)]; - unsigned int entropy_int[CHACHA20_BLOCK_SIZE / sizeof(unsigned int)]; + u64 entropy_u64[CHACHA20_BLOCK_SIZE / sizeof(u64)]; + u32 entropy_u32[CHACHA20_BLOCK_SIZE / sizeof(u32)]; }; unsigned int position; }; @@ -2029,52 +2029,51 @@ struct batched_entropy { * number is either as good as RDRAND or as good as /dev/urandom, with the * goal of being quite fast and not depleting entropy. */ -static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_long); -unsigned long get_random_long(void) +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u64); +u64 get_random_u64(void) { - unsigned long ret; + u64 ret; struct batched_entropy *batch; - if (arch_get_random_long(&ret)) +#if BITS_PER_LONG == 64 + if (arch_get_random_long((unsigned long *)&ret)) return ret; +#else + if (arch_get_random_long((unsigned long *)&ret) && + arch_get_random_long((unsigned long *)&ret + 1)) + return ret; +#endif - batch = &get_cpu_var(batched_entropy_long); - if (batch->position % ARRAY_SIZE(batch->entropy_long) == 0) { - extract_crng((u8 *)batch->entropy_long); + batch = &get_cpu_var(batched_entropy_u64); + if (batch->position % ARRAY_SIZE(batch->entropy_u64) == 0) { + extract_crng((u8 *)batch->entropy_u64); batch->position = 0; } - ret = batch->entropy_long[batch->position++]; - put_cpu_var(batched_entropy_long); + ret = batch->entropy_u64[batch->position++]; + put_cpu_var(batched_entropy_u64); return ret; } -EXPORT_SYMBOL(get_random_long); +EXPORT_SYMBOL(get_random_u64); -#if BITS_PER_LONG == 32 -unsigned int get_random_int(void) -{ - return get_random_long(); -} -#else -static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_int); -unsigned int get_random_int(void) +static DEFINE_PER_CPU(struct batched_entropy, batched_entropy_u32); +u32 get_random_u32(void) { - unsigned int ret; + u32 ret; struct batched_entropy *batch; if (arch_get_random_int(&ret)) return ret; - batch = &get_cpu_var(batched_entropy_int); - if (batch->position % ARRAY_SIZE(batch->entropy_int) == 0) { - extract_crng((u8 *)batch->entropy_int); + batch = &get_cpu_var(batched_entropy_u32); + if (batch->position % ARRAY_SIZE(batch->entropy_u32) == 0) { + extract_crng((u8 *)batch->entropy_u32); batch->position = 0; } - ret = batch->entropy_int[batch->position++]; - put_cpu_var(batched_entropy_int); + ret = batch->entropy_u32[batch->position++]; + put_cpu_var(batched_entropy_u32); return ret; } -#endif -EXPORT_SYMBOL(get_random_int); +EXPORT_SYMBOL(get_random_u32); /** * randomize_page - Generate a random, page aligned address -- cgit From db61ffe3a71c697aaa91c42c862a5f7557a0e562 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Tue, 31 Jan 2017 14:36:07 -0200 Subject: random: move random_min_urandom_seed into CONFIG_SYSCTL ifdef block Building arm allnodefconfig causes the following build warning: drivers/char/random.c:318:12: warning: 'random_min_urandom_seed' defined but not used [-Wunused-variable] Fix the warning by moving 'random_min_urandom_seed' declaration inside the CONFIG_SYSCTL ifdef block, where it is actually used. While at it, remove the comment prior to the variable declaration. Signed-off-by: Fabio Estevam Signed-off-by: Theodore Ts'o --- drivers/char/random.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/char/random.c b/drivers/char/random.c index 066ae125f2c8..0ab024918907 100644 --- a/drivers/char/random.c +++ b/drivers/char/random.c @@ -312,11 +312,6 @@ static int random_read_wakeup_bits = 64; */ static int random_write_wakeup_bits = 28 * OUTPUT_POOL_WORDS; -/* - * Variable is currently unused by left for user space compatibility. - */ -static int random_min_urandom_seed = 60; - /* * Originally, we used a primitive polynomial of degree .poolwords * over GF(2). The taps for various sizes are defined below. They @@ -1886,6 +1881,7 @@ SYSCALL_DEFINE3(getrandom, char __user *, buf, size_t, count, static int min_read_thresh = 8, min_write_thresh; static int max_read_thresh = OUTPUT_POOL_WORDS * 32; static int max_write_thresh = INPUT_POOL_WORDS * 32; +static int random_min_urandom_seed = 60; static char sysctl_bootid[16]; /* -- cgit From 7e91c7df29b5e196de3dc6f086c8937973bd0b88 Mon Sep 17 00:00:00 2001 From: Stefano Stabellini Date: Tue, 7 Feb 2017 19:58:02 +0200 Subject: swiotlb-xen: implement xen_swiotlb_dma_mmap callback This function creates userspace mapping for the DMA-coherent memory. Signed-off-by: Stefano Stabellini Signed-off-by: Oleksandr Dmytryshyn Signed-off-by: Andrii Anisov Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/swiotlb-xen.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'drivers') diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index f905d6eeb048..c7f61fc0572a 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -680,3 +680,22 @@ xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask) return 0; } EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_mask); + +/* + * Create userspace mapping for the DMA-coherent memory. + * This function should be called with the pages from the current domain only, + * passing pages mapped from other domains would lead to memory corruption. + */ +int +xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma, + void *cpu_addr, dma_addr_t dma_addr, size_t size, + unsigned long attrs) +{ +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) + if (__generic_dma_ops(dev)->mmap) + return __generic_dma_ops(dev)->mmap(dev, vma, cpu_addr, + dma_addr, size, attrs); +#endif + return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size); +} +EXPORT_SYMBOL_GPL(xen_swiotlb_dma_mmap); -- cgit From 69369f52d28a34c84acb6f2a8a585e743441566a Mon Sep 17 00:00:00 2001 From: Andrii Anisov Date: Tue, 7 Feb 2017 19:58:03 +0200 Subject: swiotlb-xen: implement xen_swiotlb_get_sgtable callback Signed-off-by: Andrii Anisov Signed-off-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/swiotlb-xen.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c index c7f61fc0572a..23e30b4e1fb6 100644 --- a/drivers/xen/swiotlb-xen.c +++ b/drivers/xen/swiotlb-xen.c @@ -699,3 +699,31 @@ xen_swiotlb_dma_mmap(struct device *dev, struct vm_area_struct *vma, return dma_common_mmap(dev, vma, cpu_addr, dma_addr, size); } EXPORT_SYMBOL_GPL(xen_swiotlb_dma_mmap); + +/* + * This function should be called with the pages from the current domain only, + * passing pages mapped from other domains would lead to memory corruption. + */ +int +xen_swiotlb_get_sgtable(struct device *dev, struct sg_table *sgt, + void *cpu_addr, dma_addr_t handle, size_t size, + unsigned long attrs) +{ +#if defined(CONFIG_ARM) || defined(CONFIG_ARM64) + if (__generic_dma_ops(dev)->get_sgtable) { +#if 0 + /* + * This check verifies that the page belongs to the current domain and + * is not one mapped from another domain. + * This check is for debug only, and should not go to production build + */ + unsigned long bfn = PHYS_PFN(dma_to_phys(dev, handle)); + BUG_ON (!page_is_ram(bfn)); +#endif + return __generic_dma_ops(dev)->get_sgtable(dev, sgt, cpu_addr, + handle, size, attrs); + } +#endif + return dma_common_get_sgtable(dev, sgt, cpu_addr, handle, size); +} +EXPORT_SYMBOL_GPL(xen_swiotlb_get_sgtable); -- cgit From f655e67ac8d797425abb0404d0878758f3f71c1a Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Thu, 16 Feb 2017 14:10:01 +0800 Subject: drm/i915/gvt: Fix check error on opregion.c As we switched to memremap for opregion, shouldn't use any __iomem for that, and move to use memcpy instead. This fixed static check errors for: CHECK drivers/gpu/drm/i915//gvt/opregion.c drivers/gpu/drm/i915//gvt/opregion.c:142:31: warning: incorrect type in argument 1 (different address spaces) drivers/gpu/drm/i915//gvt/opregion.c:142:31: expected void *addr drivers/gpu/drm/i915//gvt/opregion.c:142:31: got void [noderef] *opregion_va drivers/gpu/drm/i915//gvt/opregion.c:160:35: warning: incorrect type in assignment (different address spaces) drivers/gpu/drm/i915//gvt/opregion.c:160:35: expected void [noderef] *opregion_va drivers/gpu/drm/i915//gvt/opregion.c:160:35: got void * Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gvt.h | 2 +- drivers/gpu/drm/i915/gvt/opregion.c | 5 ++--- 2 files changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index e227caf5859e..5ee660077b0c 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -203,7 +203,7 @@ struct intel_gvt_firmware { }; struct intel_gvt_opregion { - void __iomem *opregion_va; + void *opregion_va; u32 opregion_pa; }; diff --git a/drivers/gpu/drm/i915/gvt/opregion.c b/drivers/gpu/drm/i915/gvt/opregion.c index d9fb41ab7119..5d1caf9daba9 100644 --- a/drivers/gpu/drm/i915/gvt/opregion.c +++ b/drivers/gpu/drm/i915/gvt/opregion.c @@ -27,7 +27,6 @@ static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa) { - void __iomem *host_va = vgpu->gvt->opregion.opregion_va; u8 *buf; int i; @@ -43,8 +42,8 @@ static int init_vgpu_opregion(struct intel_vgpu *vgpu, u32 gpa) if (!vgpu_opregion(vgpu)->va) return -ENOMEM; - memcpy_fromio(vgpu_opregion(vgpu)->va, host_va, - INTEL_GVT_OPREGION_SIZE); + memcpy(vgpu_opregion(vgpu)->va, vgpu->gvt->opregion.opregion_va, + INTEL_GVT_OPREGION_SIZE); for (i = 0; i < INTEL_GVT_OPREGION_PAGES; i++) vgpu_opregion(vgpu)->gfn[i] = (gpa >> PAGE_SHIFT) + i; -- cgit From fd64be636708d808852c4c8c1efce0a0a51c24c5 Mon Sep 17 00:00:00 2001 From: Min He Date: Fri, 17 Feb 2017 15:02:36 +0800 Subject: drm/i915/gvt: introduced failsafe mode into vgpu New failsafe mode is introduced, when we detect guest not supporting GVT-g. In failsafe mode, we will ignore all the MMIO and cfg space read/write from guest. This patch can fix the issue that when guest kernel or graphics driver version is too low, there will be a lot of kernel traces in host. V5: rebased onto latest gvt-staging V4: changed coding style by Zhenyu and Ping's advice V3: modified coding style and error messages according to Zhenyu's comment V2: 1) implemented MMIO/GTT/WP pages read/write logic; 2) used a unified function to enter failsafe mode Signed-off-by: Min He Signed-off-by: Pei Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/cfg_space.c | 3 ++ drivers/gpu/drm/i915/gvt/gvt.h | 6 ++++ drivers/gpu/drm/i915/gvt/handlers.c | 36 +++++++++++++++++++++ drivers/gpu/drm/i915/gvt/mmio.c | 62 ++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/gvt/vgpu.c | 6 +++- 5 files changed, 112 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c index 4a6a2ed65732..a77e050b85a3 100644 --- a/drivers/gpu/drm/i915/gvt/cfg_space.c +++ b/drivers/gpu/drm/i915/gvt/cfg_space.c @@ -237,6 +237,9 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset, { int ret; + if (vgpu->failsafe) + return 0; + if (WARN_ON(bytes > 4)) return -EINVAL; diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 5ee660077b0c..48ef0771d772 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -143,6 +143,8 @@ struct intel_vgpu { int id; unsigned long handle; /* vGPU handle used by hypervisor MPT modules */ bool active; + bool pv_notified; + bool failsafe; bool resetting; void *sched_data; @@ -449,6 +451,10 @@ struct intel_gvt_ops { }; +enum { + GVT_FAILSAFE_UNSUPPORTED_GUEST, +}; + #include "mpt.h" #endif diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 1d450627ff65..6f098bb110bd 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -150,10 +150,34 @@ static int render_mmio_to_ring_id(struct intel_gvt *gvt, unsigned int reg) #define fence_num_to_offset(num) \ (num * 8 + i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0))) + +static void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason) +{ + switch (reason) { + case GVT_FAILSAFE_UNSUPPORTED_GUEST: + pr_err("Detected your guest driver doesn't support GVT-g.\n"); + break; + default: + break; + } + pr_err("Now vgpu %d will enter failsafe mode.\n", vgpu->id); + vgpu->failsafe = true; +} + static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu, unsigned int fence_num, void *p_data, unsigned int bytes) { if (fence_num >= vgpu_fence_sz(vgpu)) { + + /* When guest access oob fence regs without access + * pv_info first, we treat guest not supporting GVT, + * and we will let vgpu enter failsafe mode. + */ + if (!vgpu->pv_notified) { + enter_failsafe_mode(vgpu, + GVT_FAILSAFE_UNSUPPORTED_GUEST); + return -EINVAL; + } gvt_err("vgpu%d: found oob fence register access\n", vgpu->id); gvt_err("vgpu%d: total fence num %d access fence num %d\n", @@ -1001,6 +1025,7 @@ static int pvinfo_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, if (invalid_read) gvt_err("invalid pvinfo read: [%x:%x] = %x\n", offset, bytes, *(u32 *)p_data); + vgpu->pv_notified = true; return 0; } @@ -1318,6 +1343,17 @@ static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, bool enable_execlist; write_vreg(vgpu, offset, p_data, bytes); + + /* when PPGTT mode enabled, we will check if guest has called + * pvinfo, if not, we will treat this guest as non-gvtg-aware + * guest, and stop emulating its cfg space, mmio, gtt, etc. + */ + if (((data & _MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE)) || + (data & _MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE))) + && !vgpu->pv_notified) { + enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); + return 0; + } if ((data & _MASKED_BIT_ENABLE(GFX_RUN_LIST_ENABLE)) || (data & _MASKED_BIT_DISABLE(GFX_RUN_LIST_ENABLE))) { enable_execlist = !!(data & GFX_RUN_LIST_ENABLE); diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index 4df078bc5d04..b2d72dad1537 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -57,6 +57,58 @@ int intel_vgpu_gpa_to_mmio_offset(struct intel_vgpu *vgpu, u64 gpa) (reg >= gvt->device_info.gtt_start_offset \ && reg < gvt->device_info.gtt_start_offset + gvt_ggtt_sz(gvt)) +static void failsafe_emulate_mmio_rw(struct intel_vgpu *vgpu, uint64_t pa, + void *p_data, unsigned int bytes, bool read) +{ + struct intel_gvt *gvt = NULL; + void *pt = NULL; + unsigned int offset = 0; + + if (!vgpu || !p_data) + return; + + gvt = vgpu->gvt; + mutex_lock(&gvt->lock); + offset = intel_vgpu_gpa_to_mmio_offset(vgpu, pa); + if (reg_is_mmio(gvt, offset)) { + if (read) + intel_vgpu_default_mmio_read(vgpu, offset, p_data, + bytes); + else + intel_vgpu_default_mmio_write(vgpu, offset, p_data, + bytes); + } else if (reg_is_gtt(gvt, offset) && + vgpu->gtt.ggtt_mm->virtual_page_table) { + offset -= gvt->device_info.gtt_start_offset; + pt = vgpu->gtt.ggtt_mm->virtual_page_table + offset; + if (read) + memcpy(p_data, pt, bytes); + else + memcpy(pt, p_data, bytes); + + } else if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) { + struct intel_vgpu_guest_page *gp; + + /* Since we enter the failsafe mode early during guest boot, + * guest may not have chance to set up its ppgtt table, so + * there should not be any wp pages for guest. Keep the wp + * related code here in case we need to handle it in furture. + */ + gp = intel_vgpu_find_guest_page(vgpu, pa >> PAGE_SHIFT); + if (gp) { + /* remove write protection to prevent furture traps */ + intel_vgpu_clean_guest_page(vgpu, gp); + if (read) + intel_gvt_hypervisor_read_gpa(vgpu, pa, + p_data, bytes); + else + intel_gvt_hypervisor_write_gpa(vgpu, pa, + p_data, bytes); + } + } + mutex_unlock(&gvt->lock); +} + /** * intel_vgpu_emulate_mmio_read - emulate MMIO read * @vgpu: a vGPU @@ -75,6 +127,11 @@ int intel_vgpu_emulate_mmio_read(struct intel_vgpu *vgpu, uint64_t pa, unsigned int offset = 0; int ret = -EINVAL; + + if (vgpu->failsafe) { + failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, true); + return 0; + } mutex_lock(&gvt->lock); if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) { @@ -188,6 +245,11 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa, u32 old_vreg = 0, old_sreg = 0; int ret = -EINVAL; + if (vgpu->failsafe) { + failsafe_emulate_mmio_rw(vgpu, pa, p_data, bytes, false); + return 0; + } + mutex_lock(&gvt->lock); if (atomic_read(&vgpu->gtt.n_write_protected_guest_page)) { diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index 95a97aa0051e..dcfcce1dc00e 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -387,8 +387,12 @@ void intel_gvt_reset_vgpu_locked(struct intel_vgpu *vgpu, bool dmlr, populate_pvinfo_page(vgpu); intel_vgpu_reset_display(vgpu); - if (dmlr) + if (dmlr) { intel_vgpu_reset_cfg_space(vgpu); + /* only reset the failsafe mode when dmlr reset */ + vgpu->failsafe = false; + vgpu->pv_notified = false; + } } vgpu->resetting = false; -- cgit From d1be371d4f4c12d11023c9fc795e5d460d960680 Mon Sep 17 00:00:00 2001 From: "Zhao, Xinda" Date: Fri, 17 Feb 2017 14:38:33 +0800 Subject: drm/i915/gvt: handle fence reg access during GPU reset Lots of reduntant log info will be printed out during GPU reset, including accessing untracked mmio register and fence register, variable disable_warn_untrack is added previously to handle the situation, but the accessing of fence register is ignored in the previously patch, so add it back. Besides, set the variable disable_warn_untrack to the defalut value after GPU reset is finished. Signed-off-by: Zhao, Xinda Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 15 +++++++++------ drivers/gpu/drm/i915/gvt/mmio.c | 2 ++ 2 files changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 6f098bb110bd..fd7e789a72c3 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -173,16 +173,19 @@ static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu, * pv_info first, we treat guest not supporting GVT, * and we will let vgpu enter failsafe mode. */ - if (!vgpu->pv_notified) { + if (!vgpu->pv_notified) enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); - return -EINVAL; + + if (!vgpu->mmio.disable_warn_untrack) { + gvt_err("vgpu%d: found oob fence register access\n", + vgpu->id); + gvt_err("vgpu%d: total fence %d, access fence %d\n", + vgpu->id, vgpu_fence_sz(vgpu), + fence_num); } - gvt_err("vgpu%d: found oob fence register access\n", - vgpu->id); - gvt_err("vgpu%d: total fence num %d access fence num %d\n", - vgpu->id, vgpu_fence_sz(vgpu), fence_num); memset(p_data, 0, bytes); + return -EINVAL; } return 0; } diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index b2d72dad1537..99abb01fa9eb 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -384,6 +384,8 @@ void intel_vgpu_reset_mmio(struct intel_vgpu *vgpu) /* set the bit 0:2(Core C-State ) to C0 */ vgpu_vreg(vgpu, GEN6_GT_CORE_STATUS) = 0; + + vgpu->mmio.disable_warn_untrack = false; } /** -- cgit From a33fc7a0482a40068c022aefcefd50f9f0f44f87 Mon Sep 17 00:00:00 2001 From: Min He Date: Fri, 17 Feb 2017 16:42:38 +0800 Subject: drm/i915/gvt: enter failsafe mode when guest requires more resources Windows guest will notitfy GVT-g to request more resources through g2v interface, when its resources are not enough. This patch is to handle this case and let vgpu enter failsafe mode to avoid too many error messages. Signed-off-by: Min He Signed-off-by: Pei Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gvt.h | 1 + drivers/gpu/drm/i915/gvt/handlers.c | 5 +++++ 2 files changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 48ef0771d772..a41b322d8957 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -453,6 +453,7 @@ struct intel_gvt_ops { enum { GVT_FAILSAFE_UNSUPPORTED_GUEST, + GVT_FAILSAFE_INSUFFICIENT_RESOURCE, }; #include "mpt.h" diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index fd7e789a72c3..e1a382645112 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -157,6 +157,8 @@ static void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason) case GVT_FAILSAFE_UNSUPPORTED_GUEST: pr_err("Detected your guest driver doesn't support GVT-g.\n"); break; + case GVT_FAILSAFE_INSUFFICIENT_RESOURCE: + pr_err("Graphics resource is not enough for the guest\n"); default: break; } @@ -1106,6 +1108,9 @@ static int pvinfo_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, case _vgtif_reg(execlist_context_descriptor_lo): case _vgtif_reg(execlist_context_descriptor_hi): break; + case _vgtif_reg(rsv5[0])..._vgtif_reg(rsv5[3]): + enter_failsafe_mode(vgpu, GVT_FAILSAFE_INSUFFICIENT_RESOURCE); + break; default: gvt_err("invalid pvinfo write offset %x bytes %x data %x\n", offset, bytes, data); -- cgit From 9272f73f79bd780502134f227fa52fd280ecda17 Mon Sep 17 00:00:00 2001 From: Chuanxiao Dong Date: Fri, 17 Feb 2017 19:29:52 +0800 Subject: drm/i915/gvt: add a NULL pointer check to avoid kernel panic Due to the request replay, context switch interrupt may come after gvt free the workload thus can cause a kernel NULL pointer kernel panic. This patch will add a simple check to avoid this for a short term. From long term, gvt workload lifecycle doesn't match with i915 request and need to find a proper way to manage this. v4: simplify the NULL pointer check. v5: add unlikely to optimize. Signed-off-by: Chuanxiao Dong Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/scheduler.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index d6b6d0efdd1a..e355a82ccabd 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -139,6 +139,9 @@ static int shadow_context_status_change(struct notifier_block *nb, struct intel_vgpu_workload *workload = scheduler->current_workload[req->engine->id]; + if (unlikely(!workload)) + return NOTIFY_OK; + switch (action) { case INTEL_CONTEXT_SCHEDULE_IN: intel_gvt_load_render_mmio(workload->vgpu, -- cgit From 593e59b4b941910e4f7ba87d3c02d63e38e960d0 Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Mon, 20 Feb 2017 15:51:13 +0800 Subject: drm/i915/gvt: fix unhandled mmio warnings some registers were missing or treated as BDW only. This patch is to fix it avoid unhandled mmio wanrings v2: update commit message according to zhenyu's comment Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index e1a382645112..e1abece853d4 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1519,6 +1519,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK, NULL, NULL); MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK, NULL, NULL); MMIO_DFH(CACHE_MODE_1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_DFH(0x2124, D_ALL, F_MODE_MASK, NULL, NULL); MMIO_DFH(0x20dc, D_ALL, F_MODE_MASK, NULL, NULL); MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK, NULL, NULL); @@ -2390,9 +2392,9 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_D(CHICKEN_PIPESL_1(PIPE_A), D_BDW); - MMIO_D(CHICKEN_PIPESL_1(PIPE_B), D_BDW); - MMIO_D(CHICKEN_PIPESL_1(PIPE_C), D_BDW); + MMIO_D(CHICKEN_PIPESL_1(PIPE_A), D_BDW_PLUS); + MMIO_D(CHICKEN_PIPESL_1(PIPE_B), D_BDW_PLUS); + MMIO_D(CHICKEN_PIPESL_1(PIPE_C), D_BDW_PLUS); MMIO_D(WM_MISC, D_BDW); MMIO_D(BDW_EDP_PSR_BASE, D_BDW); @@ -2406,7 +2408,7 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_D(GEN8_EU_DISABLE1, D_BDW_PLUS); MMIO_D(GEN8_EU_DISABLE2, D_BDW_PLUS); - MMIO_D(0xfdc, D_BDW); + MMIO_D(0xfdc, D_BDW_PLUS); MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_D(GEN7_ROW_CHICKEN2, D_BDW_PLUS); MMIO_D(GEN8_UCGCTL6, D_BDW_PLUS); @@ -2423,6 +2425,10 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DFH(0x24d8, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x24dc, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_D(0x22040, D_BDW_PLUS); + MMIO_D(0x44484, D_BDW_PLUS); + MMIO_D(0x4448c, D_BDW_PLUS); + MMIO_D(0x83a4, D_BDW); MMIO_D(GEN8_L3_LRA_1_GPGPU, D_BDW_PLUS); @@ -2668,6 +2674,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(_PLANE_KEYMSK_1(PIPE_C), D_SKL); MMIO_D(0x44500, D_SKL); + MMIO_D(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS); return 0; } -- cgit From d8e9b2b9097c117880dc22933239d05199c60b96 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 20 Feb 2017 14:58:25 +0100 Subject: drm/i915/gvt: Fix superfluous newline in GVT_DISPLAY_READY env var send_display_send_uevent() sends two environment variable, and the first one GVT_DISPLAY_READY is set including a new line at the end of the string; that is obviously superfluous and wrong -- at least, it *looks* so when you only read the code. However, it doesn't appear in the actual output by a (supposedly unexpected) trick. The code uses snprintf() and truncates the string in size 20 bytes. This makes the string as GVT_DISPLAY_READY=0 or ...=1 including the trailing NUL-letter. That is, the '\n' found in the format string is always cut off as a result. Although the code gives the correct result, it is confusing. This patch addresses it, just removing the superfluous '\n' from the format string for avoiding further confusion. If the argument "ready" were not a bool, the size 20 should be corrected as well. But it's a bool, so we can leave the magic number 20 as is for now. FWIW, the bug was spotted by a new GCC7 warning: drivers/gpu/drm/i915/gvt/handlers.c: In function 'pvinfo_mmio_write': drivers/gpu/drm/i915/gvt/handlers.c:1042:34: error: 'snprintf' output truncated before the last format character [-Werror=format-truncation=] snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d\n", ready); ^~~~~~~~~~~~~~~~~~~~~~~~ drivers/gpu/drm/i915/gvt/handlers.c:1042:2: note: 'snprintf' output 21 bytes into a destination of size 20 snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d\n", ready); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Fixes: 04d348ae3f0a ("drm/i915/gvt: vGPU display virtualization") Bugzilla: https://bugzilla.suse.com/show_bug.cgi?id=1025903 Reported-by: Richard Biener Cc: Signed-off-by: Takashi Iwai Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index e1abece853d4..a1880424ad32 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1069,7 +1069,7 @@ static int send_display_ready_uevent(struct intel_vgpu *vgpu, int ready) char vmid_str[20]; char display_ready_str[20]; - snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d\n", ready); + snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d", ready); env[0] = display_ready_str; snprintf(vmid_str, 20, "VMID=%d", vgpu->id); -- cgit From 4c4b22abb3d405c5c194b02255eecc1a9eff42cf Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 21 Feb 2017 09:39:00 +0800 Subject: drm/i915/gvt: add more registers to context save/restore list the value of those registers should be applied to hardware on context restoring Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/render.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/render.c b/drivers/gpu/drm/i915/gvt/render.c index 2b3a642284b6..73f052a4f424 100644 --- a/drivers/gpu/drm/i915/gvt/render.c +++ b/drivers/gpu/drm/i915/gvt/render.c @@ -53,6 +53,14 @@ static struct render_mmio gen8_render_mmio_list[] = { {RCS, _MMIO(0x24d4), 0, false}, {RCS, _MMIO(0x24d8), 0, false}, {RCS, _MMIO(0x24dc), 0, false}, + {RCS, _MMIO(0x24e0), 0, false}, + {RCS, _MMIO(0x24e4), 0, false}, + {RCS, _MMIO(0x24e8), 0, false}, + {RCS, _MMIO(0x24ec), 0, false}, + {RCS, _MMIO(0x24f0), 0, false}, + {RCS, _MMIO(0x24f4), 0, false}, + {RCS, _MMIO(0x24f8), 0, false}, + {RCS, _MMIO(0x24fc), 0, false}, {RCS, _MMIO(0x7004), 0xffff, true}, {RCS, _MMIO(0x7008), 0xffff, true}, {RCS, _MMIO(0x7000), 0xffff, true}, @@ -76,6 +84,14 @@ static struct render_mmio gen9_render_mmio_list[] = { {RCS, _MMIO(0x24d4), 0, false}, {RCS, _MMIO(0x24d8), 0, false}, {RCS, _MMIO(0x24dc), 0, false}, + {RCS, _MMIO(0x24e0), 0, false}, + {RCS, _MMIO(0x24e4), 0, false}, + {RCS, _MMIO(0x24e8), 0, false}, + {RCS, _MMIO(0x24ec), 0, false}, + {RCS, _MMIO(0x24f0), 0, false}, + {RCS, _MMIO(0x24f4), 0, false}, + {RCS, _MMIO(0x24f8), 0, false}, + {RCS, _MMIO(0x24fc), 0, false}, {RCS, _MMIO(0x7004), 0xffff, true}, {RCS, _MMIO(0x7008), 0xffff, true}, {RCS, _MMIO(0x7000), 0xffff, true}, -- cgit From e6cedfea6b8dcb205f75ea632570f52d2ffd1251 Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 21 Feb 2017 10:38:53 +0800 Subject: drm/i915/gvt: force-nopriv register handling add a whitelist to check the content of force-nonpriv registers v3: per He Min's comment, modify in_whitelist()'s return type to bool, and use negative value as the return value for failure for force_nonpriv_write(). v2: 1. split a big patch into two smaller ones per zhenyu's comment. this patch is the mmio handling part for force-nopriv registers 2. per zhenyu's comment, combine all non-priv registers into a single MMIO_DFH entry Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 74 +++++++++++++++++++++++++++++++++++-- 1 file changed, 70 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index a1880424ad32..af0c0d1ec9a8 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -398,6 +398,74 @@ static int pipeconf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, return 0; } +/* ascendingly sorted */ +static i915_reg_t force_nonpriv_white_list[] = { + GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec) + GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248) + GEN8_CS_CHICKEN1,//_MMIO(0x2580) + _MMIO(0x2690), + _MMIO(0x2694), + _MMIO(0x2698), + _MMIO(0x4de0), + _MMIO(0x4de4), + _MMIO(0x4dfc), + GEN7_COMMON_SLICE_CHICKEN1,//_MMIO(0x7010) + _MMIO(0x7014), + HDC_CHICKEN0,//_MMIO(0x7300) + GEN8_HDC_CHICKEN1,//_MMIO(0x7304) + _MMIO(0x7700), + _MMIO(0x7704), + _MMIO(0x7708), + _MMIO(0x770c), + _MMIO(0xb110), + GEN8_L3SQCREG4,//_MMIO(0xb118) + _MMIO(0xe100), + _MMIO(0xe18c), + _MMIO(0xe48c), + _MMIO(0xe5f4), +}; + +/* a simple bsearch */ +static inline bool in_whitelist(unsigned int reg) +{ + int left = 0, right = ARRAY_SIZE(force_nonpriv_white_list); + i915_reg_t *array = force_nonpriv_white_list; + + while (left < right) { + int mid = (left + right)/2; + + if (reg > array[mid].reg) + left = mid + 1; + else if (reg < array[mid].reg) + right = mid; + else + return true; + } + return false; +} + +static int force_nonpriv_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 reg_nonpriv = *(u32 *)p_data; + int ret = -EINVAL; + + if ((bytes != 4) || ((offset & (bytes - 1)) != 0)) { + gvt_err("vgpu(%d) Invalid FORCE_NONPRIV offset %x(%dB)\n", + vgpu->id, offset, bytes); + return ret; + } + + if (in_whitelist(reg_nonpriv)) { + ret = intel_vgpu_default_mmio_write(vgpu, offset, p_data, + bytes); + } else { + gvt_err("vgpu(%d) Invalid FORCE_NONPRIV write %x\n", + vgpu->id, reg_nonpriv); + } + return ret; +} + static int ddi_buf_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, void *p_data, unsigned int bytes) { @@ -2420,10 +2488,8 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_D(0xb10c, D_BDW); MMIO_D(0xb110, D_BDW); - MMIO_DFH(0x24d0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x24d4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x24d8, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x24dc, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_F(0x24d0, 48, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, + NULL, force_nonpriv_write); MMIO_D(0x22040, D_BDW_PLUS); MMIO_D(0x44484, D_BDW_PLUS); -- cgit From 187447a106fc9caca45f10413845678d3666556c Mon Sep 17 00:00:00 2001 From: Pei Zhang Date: Tue, 21 Feb 2017 21:58:14 +0800 Subject: drm/i915/gvt: add cmd_access to GEN7_HALF_SLICE_CHICKEN1 Linux guest is using this MMIO in lri command. Add cmd_access flag for this mmio in gvt to avoid error log. v2: change the mmio address to its macro name Signed-off-by: Pei Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index af0c0d1ec9a8..bfe12ddb0210 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1607,7 +1607,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_D(0x243c, D_ALL); MMIO_DFH(0x7018, D_ALL, F_MODE_MASK, NULL, NULL); MMIO_DFH(HALF_SLICE_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0xe100, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_DFH(GEN7_HALF_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); /* display */ MMIO_F(0x60220, 0x20, 0, 0, 0, D_ALL, NULL, NULL); -- cgit From ec162aa84c9057e196f3a844c0a8d569f5095e6c Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 21 Feb 2017 14:00:37 +0800 Subject: drm/i915/gvt: set default value to 0 for unhandled mmio regs for a handled mmio reg, its default value is read from hardware, while for an unhandled mmio regs, its default value would be random if not explicitly set to 0 Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/firmware.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/firmware.c b/drivers/gpu/drm/i915/gvt/firmware.c index 1cb29b2d7dc6..933a7c211a1c 100644 --- a/drivers/gpu/drm/i915/gvt/firmware.c +++ b/drivers/gpu/drm/i915/gvt/firmware.c @@ -80,7 +80,7 @@ static int expose_firmware_sysfs(struct intel_gvt *gvt) int ret; size = sizeof(*h) + info->mmio_size + info->cfg_space_size - 1; - firmware = vmalloc(size); + firmware = vzalloc(size); if (!firmware) return -ENOMEM; -- cgit From bab059304314e127cf4a5330c6bd5a71fd27c022 Mon Sep 17 00:00:00 2001 From: "Zhao, Xinda" Date: Tue, 21 Feb 2017 15:07:31 +0800 Subject: drm/i915/gvt: decrease priority of output msg for untracked mmio When untracked mmio is visited, too many log info will be printed out, it may confuse the user, but most of the time, it is not the urgent case, so use gvt_dbg_mmio() instead. Signed-off-by: Zhao, Xinda Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/mmio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/mmio.c b/drivers/gpu/drm/i915/gvt/mmio.c index 99abb01fa9eb..60b698cb8365 100644 --- a/drivers/gpu/drm/i915/gvt/mmio.c +++ b/drivers/gpu/drm/i915/gvt/mmio.c @@ -298,7 +298,7 @@ int intel_vgpu_emulate_mmio_write(struct intel_vgpu *vgpu, uint64_t pa, mmio = intel_gvt_find_mmio_info(gvt, rounddown(offset, 4)); if (!mmio && !vgpu->mmio.disable_warn_untrack) - gvt_err("vgpu%d: write untracked MMIO %x len %d val %x\n", + gvt_dbg_mmio("vgpu%d: write untracked MMIO %x len %d val %x\n", vgpu->id, offset, bytes, *(u32 *)p_data); if (!intel_gvt_mmio_is_unalign(gvt, offset)) { -- cgit From da9cc8de22aa6bd6ed51c406432d599ab520a6e3 Mon Sep 17 00:00:00 2001 From: Ping Gao Date: Tue, 21 Feb 2017 15:52:56 +0800 Subject: drm/i915/gvt: clear the vGPU reset logic Releasing shadow PPGTT pages is not enough when vGPU reset, the guest page table tracking data should has same life-cycle with all the shadow PPGTT pages; Otherwise there is no chance to re-shadow the PPGTT pages without free the guest page table tracking data. This patch clear the PPGTT reset logic and make the vGPU reset in working order. v2: refactor some logic to avoid code duplicated. v3: remove useless macro and add comments from Christophe. v4: keep reset logic in reset function. Signed-off-by: Ping Gao Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gtt.c | 35 +++++++++++++++++++++++++---------- 1 file changed, 25 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 28c92346db0e..b5c833287d39 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -2015,6 +2015,22 @@ int intel_vgpu_init_gtt(struct intel_vgpu *vgpu) return create_scratch_page_tree(vgpu); } +static void intel_vgpu_free_mm(struct intel_vgpu *vgpu, int type) +{ + struct list_head *pos, *n; + struct intel_vgpu_mm *mm; + + list_for_each_safe(pos, n, &vgpu->gtt.mm_list_head) { + mm = container_of(pos, struct intel_vgpu_mm, list); + if (mm->type == type) { + vgpu->gvt->gtt.mm_free_page_table(mm); + list_del(&mm->list); + list_del(&mm->lru_list); + kfree(mm); + } + } +} + /** * intel_vgpu_clean_gtt - clean up per-vGPU graphics memory virulization * @vgpu: a vGPU @@ -2027,19 +2043,11 @@ int intel_vgpu_init_gtt(struct intel_vgpu *vgpu) */ void intel_vgpu_clean_gtt(struct intel_vgpu *vgpu) { - struct list_head *pos, *n; - struct intel_vgpu_mm *mm; - ppgtt_free_all_shadow_page(vgpu); release_scratch_page_tree(vgpu); - list_for_each_safe(pos, n, &vgpu->gtt.mm_list_head) { - mm = container_of(pos, struct intel_vgpu_mm, list); - vgpu->gvt->gtt.mm_free_page_table(mm); - list_del(&mm->list); - list_del(&mm->lru_list); - kfree(mm); - } + intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT); + intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_GGTT); } static void clean_spt_oos(struct intel_gvt *gvt) @@ -2322,6 +2330,13 @@ void intel_vgpu_reset_gtt(struct intel_vgpu *vgpu, bool dmlr) int i; ppgtt_free_all_shadow_page(vgpu); + + /* Shadow pages are only created when there is no page + * table tracking data, so remove page tracking data after + * removing the shadow pages. + */ + intel_vgpu_free_mm(vgpu, INTEL_GVT_MM_PPGTT); + if (!dmlr) return; -- cgit From d8a355be0b2b5613f7b34aee1394369d45d50586 Mon Sep 17 00:00:00 2001 From: Weinan Li Date: Wed, 22 Feb 2017 11:03:24 +0800 Subject: drm/i915/gvt: refine pcode write emulation In GVT-g we always emulate as pcode read/write success and ready for access anytime, since we don't touch real physical registers here. Add 'SKL_PCODE_CDCLK_CONTROL' write emulation, without it will cause skl_set_cdclk fail in guest. Signed-off-by: Weinan Li Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index bfe12ddb0210..f89b183488e9 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1315,6 +1315,9 @@ static int mailbox_write(struct intel_vgpu *vgpu, unsigned int offset, else *data0 = 0x61514b3d; break; + case SKL_PCODE_CDCLK_CONTROL: + *data0 = SKL_CDCLK_READY_FOR_CHANGE; + break; case 0x5: *data0 |= 0x1; break; @@ -1322,8 +1325,13 @@ static int mailbox_write(struct intel_vgpu *vgpu, unsigned int offset, gvt_dbg_core("VM(%d) write %x to mailbox, return data0 %x\n", vgpu->id, value, *data0); - - value &= ~(1 << 31); + /** + * PCODE_READY clear means ready for pcode read/write, + * PCODE_ERROR_MASK clear means no error happened. In GVT-g we + * always emulate as pcode read/write success and ready for access + * anytime, since we don't touch real physical registers here. + */ + value &= ~(GEN6_PCODE_READY | GEN6_PCODE_ERROR_MASK); return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes); } -- cgit From 7c28135c77414327523b89bfc3f13096e095f5ac Mon Sep 17 00:00:00 2001 From: "Zhao, Xinda" Date: Tue, 21 Feb 2017 15:54:56 +0800 Subject: drm/i915/gvt: remove unnecessary error msg from gtt write The guest VM may initialize the whole GTT table during boot up, so the warning msg in emulate_gtt_mmio_write is not necessary, it is the expected behavior and it may confuse the user if error msg is printed out, so remove the msg from emulate_gtt_mmio_write(), Signed-off-by: Zhao, Xinda Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gtt.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index b5c833287d39..6a5ff23ded90 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1825,11 +1825,8 @@ static int emulate_gtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off, gma = g_gtt_index << GTT_PAGE_SHIFT; /* the VM may configure the whole GM space when ballooning is used */ - if (WARN_ONCE(!vgpu_gmadr_is_valid(vgpu, gma), - "vgpu%d: found oob ggtt write, offset %x\n", - vgpu->id, off)) { + if (!vgpu_gmadr_is_valid(vgpu, gma)) return 0; - } ggtt_get_guest_entry(ggtt_mm, &e, g_gtt_index); -- cgit From 191020b670f84f5e2edfaa906c3801df20485610 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Thu, 23 Feb 2017 14:46:23 +0800 Subject: drm/i915/gvt: adjust to fixed vGPU types Previous vGPU type create tried to determine vGPU type name e.g _1, _2 based on the number of mdev devices can be created, but different type might have very different resource size depending on physical device. We need to split type name vs. actual mdev resource and create fixed vGPU type with determined size for consistence. With this we'd like to fix vGPU types for _1, _2, _4 and _8 now, each type has fixed defined resource size. Available mdev instances that could be created is determined by physical resource, and user should query for that before creating. Cc: Kevin Tian Reviewed-by: Kevin Tian Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/gvt.h | 1 - drivers/gpu/drm/i915/gvt/vgpu.c | 58 ++++++++++++++++++++++++----------------- 2 files changed, 34 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index a41b322d8957..faff044c6434 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -212,7 +212,6 @@ struct intel_gvt_opregion { #define NR_MAX_INTEL_VGPU_TYPES 20 struct intel_vgpu_type { char name[16]; - unsigned int max_instance; unsigned int avail_instance; unsigned int low_gm_size; unsigned int high_gm_size; diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index dcfcce1dc00e..c27c13c3cc48 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -64,6 +64,19 @@ void populate_pvinfo_page(struct intel_vgpu *vgpu) WARN_ON(sizeof(struct vgt_if) != VGT_PVINFO_SIZE); } +static struct { + unsigned int low_mm; + unsigned int high_mm; + unsigned int fence; + char *name; +} vgpu_types[] = { +/* Fixed vGPU type table */ + { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, "8" }, + { MB_TO_BYTES(128), MB_TO_BYTES(512), 4, "4" }, + { MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, "2" }, + { MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, "1" }, +}; + /** * intel_gvt_init_vgpu_types - initialize vGPU type list * @gvt : GVT device @@ -78,9 +91,8 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) unsigned int min_low; /* vGPU type name is defined as GVTg_Vx_y which contains - * physical GPU generation type and 'y' means maximum vGPU - * instances user can create on one physical GPU for this - * type. + * physical GPU generation type (e.g V4 as BDW server, V5 as + * SKL server). * * Depend on physical SKU resource, might see vGPU types like * GVTg_V4_8, GVTg_V4_4, GVTg_V4_2, etc. We can create @@ -92,7 +104,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) */ low_avail = gvt_aperture_sz(gvt) - HOST_LOW_GM_SIZE; high_avail = gvt_hidden_sz(gvt) - HOST_HIGH_GM_SIZE; - num_types = 4; + num_types = sizeof(vgpu_types) / sizeof(vgpu_types[0]); gvt->types = kzalloc(num_types * sizeof(struct intel_vgpu_type), GFP_KERNEL); @@ -101,25 +113,24 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) min_low = MB_TO_BYTES(32); for (i = 0; i < num_types; ++i) { - if (low_avail / min_low == 0) + if (low_avail / vgpu_types[i].low_mm == 0) break; - gvt->types[i].low_gm_size = min_low; - gvt->types[i].high_gm_size = max((min_low<<3), MB_TO_BYTES(384U)); - gvt->types[i].fence = 4; - gvt->types[i].max_instance = min(low_avail / min_low, - high_avail / gvt->types[i].high_gm_size); - gvt->types[i].avail_instance = gvt->types[i].max_instance; + + gvt->types[i].low_gm_size = vgpu_types[i].low_mm; + gvt->types[i].high_gm_size = vgpu_types[i].high_mm; + gvt->types[i].fence = vgpu_types[i].fence; + gvt->types[i].avail_instance = min(low_avail / vgpu_types[i].low_mm, + high_avail / vgpu_types[i].high_mm); if (IS_GEN8(gvt->dev_priv)) - sprintf(gvt->types[i].name, "GVTg_V4_%u", - gvt->types[i].max_instance); + sprintf(gvt->types[i].name, "GVTg_V4_%s", + vgpu_types[i].name); else if (IS_GEN9(gvt->dev_priv)) - sprintf(gvt->types[i].name, "GVTg_V5_%u", - gvt->types[i].max_instance); + sprintf(gvt->types[i].name, "GVTg_V5_%s", + vgpu_types[i].name); - min_low <<= 1; - gvt_dbg_core("type[%d]: %s max %u avail %u low %u high %u fence %u\n", - i, gvt->types[i].name, gvt->types[i].max_instance, + gvt_dbg_core("type[%d]: %s avail %u low %u high %u fence %u\n", + i, gvt->types[i].name, gvt->types[i].avail_instance, gvt->types[i].low_gm_size, gvt->types[i].high_gm_size, gvt->types[i].fence); @@ -138,7 +149,7 @@ static void intel_gvt_update_vgpu_types(struct intel_gvt *gvt) { int i; unsigned int low_gm_avail, high_gm_avail, fence_avail; - unsigned int low_gm_min, high_gm_min, fence_min, total_min; + unsigned int low_gm_min, high_gm_min, fence_min; /* Need to depend on maxium hw resource size but keep on * static config for now. @@ -154,12 +165,11 @@ static void intel_gvt_update_vgpu_types(struct intel_gvt *gvt) low_gm_min = low_gm_avail / gvt->types[i].low_gm_size; high_gm_min = high_gm_avail / gvt->types[i].high_gm_size; fence_min = fence_avail / gvt->types[i].fence; - total_min = min(min(low_gm_min, high_gm_min), fence_min); - gvt->types[i].avail_instance = min(gvt->types[i].max_instance, - total_min); + gvt->types[i].avail_instance = min(min(low_gm_min, high_gm_min), + fence_min); - gvt_dbg_core("update type[%d]: %s max %u avail %u low %u high %u fence %u\n", - i, gvt->types[i].name, gvt->types[i].max_instance, + gvt_dbg_core("update type[%d]: %s avail %u low %u high %u fence %u\n", + i, gvt->types[i].name, gvt->types[i].avail_instance, gvt->types[i].low_gm_size, gvt->types[i].high_gm_size, gvt->types[i].fence); } -- cgit From bca5609fcc401b0055a3c01ecc33c5f6fb67af7b Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Fri, 24 Feb 2017 10:58:20 +0800 Subject: drm/i915/gvt: Add more edid definition support We'll need to apply different resolution for vgpu types, so this adds more EDID types definition. v2: fix typo for actual 1920x1200 resolution Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/display.c | 112 ++++++++++++++++++++++++------------- drivers/gpu/drm/i915/gvt/display.h | 6 ++ 2 files changed, 80 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index 6d8fde880c39..d346e43656f7 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -83,44 +83,80 @@ static int pipe_is_enabled(struct intel_vgpu *vgpu, int pipe) return 0; } +static unsigned char virtual_dp_monitor_edid[GVT_EDID_NUM][EDID_SIZE] = { + { +/* EDID with 1024x768 as its resolution */ + /*Header*/ + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, + /* Vendor & Product Identification */ + 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, + /* Version & Revision */ + 0x01, 0x04, + /* Basic Display Parameters & Features */ + 0xa5, 0x34, 0x20, 0x78, 0x23, + /* Color Characteristics */ + 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, + /* Established Timings: maximum resolution is 1024x768 */ + 0x21, 0x08, 0x00, + /* Standard Timings. All invalid */ + 0x00, 0xc0, 0x00, 0xc0, 0x00, 0x40, 0x00, 0x80, 0x00, 0x00, + 0x00, 0x40, 0x00, 0x00, 0x00, 0x01, + /* 18 Byte Data Blocks 1: invalid */ + 0x00, 0x00, 0x80, 0xa0, 0x70, 0xb0, + 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, + /* 18 Byte Data Blocks 2: invalid */ + 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + /* 18 Byte Data Blocks 3: invalid */ + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, + 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, + /* 18 Byte Data Blocks 4: invalid */ + 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, + 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, + /* Extension Block Count */ + 0x00, + /* Checksum */ + 0xef, + }, + { /* EDID with 1920x1200 as its resolution */ -static unsigned char virtual_dp_monitor_edid[] = { - /*Header*/ - 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, - /* Vendor & Product Identification */ - 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, - /* Version & Revision */ - 0x01, 0x04, - /* Basic Display Parameters & Features */ - 0xa5, 0x34, 0x20, 0x78, 0x23, - /* Color Characteristics */ - 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, - /* Established Timings: maximum resolution is 1024x768 */ - 0x21, 0x08, 0x00, - /* - * Standard Timings. - * below new resolutions can be supported: - * 1920x1080, 1280x720, 1280x960, 1280x1024, - * 1440x900, 1600x1200, 1680x1050 - */ - 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00, - 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01, - /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */ - 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0, - 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, - /* 18 Byte Data Blocks 2: invalid */ - 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, - 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, - /* 18 Byte Data Blocks 3: invalid */ - 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, - 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, - /* 18 Byte Data Blocks 4: invalid */ - 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, - 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, - /* Extension Block Count */ - 0x00, - /* Checksum */ - 0x45, + /*Header*/ + 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, + /* Vendor & Product Identification */ + 0x22, 0xf0, 0x54, 0x29, 0x00, 0x00, 0x00, 0x00, 0x04, 0x17, + /* Version & Revision */ + 0x01, 0x04, + /* Basic Display Parameters & Features */ + 0xa5, 0x34, 0x20, 0x78, 0x23, + /* Color Characteristics */ + 0xfc, 0x81, 0xa4, 0x55, 0x4d, 0x9d, 0x25, 0x12, 0x50, 0x54, + /* Established Timings: maximum resolution is 1024x768 */ + 0x21, 0x08, 0x00, + /* + * Standard Timings. + * below new resolutions can be supported: + * 1920x1080, 1280x720, 1280x960, 1280x1024, + * 1440x900, 1600x1200, 1680x1050 + */ + 0xd1, 0xc0, 0x81, 0xc0, 0x81, 0x40, 0x81, 0x80, 0x95, 0x00, + 0xa9, 0x40, 0xb3, 0x00, 0x01, 0x01, + /* 18 Byte Data Blocks 1: max resolution is 1920x1200 */ + 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0, + 0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x06, 0x44, 0x21, 0x00, 0x00, 0x1a, + /* 18 Byte Data Blocks 2: invalid */ + 0x00, 0x00, 0x00, 0xfd, 0x00, 0x18, 0x3c, 0x18, 0x50, 0x11, 0x00, 0x0a, + 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, + /* 18 Byte Data Blocks 3: invalid */ + 0x00, 0x00, 0x00, 0xfc, 0x00, 0x48, + 0x50, 0x20, 0x5a, 0x52, 0x32, 0x34, 0x34, 0x30, 0x77, 0x0a, 0x20, 0x20, + /* 18 Byte Data Blocks 4: invalid */ + 0x00, 0x00, 0x00, 0xff, 0x00, 0x43, 0x4e, 0x34, 0x33, 0x30, 0x34, 0x30, + 0x44, 0x58, 0x51, 0x0a, 0x20, 0x20, + /* Extension Block Count */ + 0x00, + /* Checksum */ + 0x45, + }, }; #define DPCD_HEADER_SIZE 0xb @@ -189,7 +225,7 @@ static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, return -ENOMEM; } - memcpy(port->edid->edid_block, virtual_dp_monitor_edid, + memcpy(port->edid->edid_block, virtual_dp_monitor_edid[GVT_EDID_1920_1200], EDID_SIZE); port->edid->data_valid = true; diff --git a/drivers/gpu/drm/i915/gvt/display.h b/drivers/gpu/drm/i915/gvt/display.h index 8b234ea961f6..84f160bb7bc2 100644 --- a/drivers/gpu/drm/i915/gvt/display.h +++ b/drivers/gpu/drm/i915/gvt/display.h @@ -154,6 +154,12 @@ struct intel_vgpu_port { int type; }; +enum intel_vgpu_edid { + GVT_EDID_1024_768, + GVT_EDID_1920_1200, + GVT_EDID_NUM, +}; + void intel_gvt_emulate_vblank(struct intel_gvt *gvt); void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt); -- cgit From d1a513be1f0a25f094e1577d059b9aebaa279bb2 Mon Sep 17 00:00:00 2001 From: Zhenyu Wang Date: Fri, 24 Feb 2017 10:58:21 +0800 Subject: drm/i915/gvt: add resolution definition for vGPU type This assigns resolution definition for each vGPU type. For smaller resource type we should limit max resolution, so e.g limit to 1024x768 for 64M type, others are still default to 1920x1200. v2: Fix for actual 1920x1200 resolution Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/display.c | 15 ++++++++++----- drivers/gpu/drm/i915/gvt/display.h | 14 +++++++++++++- drivers/gpu/drm/i915/gvt/gvt.h | 2 ++ drivers/gpu/drm/i915/gvt/kvmgt.c | 8 ++++---- drivers/gpu/drm/i915/gvt/vgpu.c | 18 +++++++++++------- 5 files changed, 40 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index d346e43656f7..43e02e038375 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -211,10 +211,13 @@ static void clean_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num) } static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, - int type) + int type, unsigned int resolution) { struct intel_vgpu_port *port = intel_vgpu_port(vgpu, port_num); + if (WARN_ON(resolution >= GVT_EDID_NUM)) + return -EINVAL; + port->edid = kzalloc(sizeof(*(port->edid)), GFP_KERNEL); if (!port->edid) return -ENOMEM; @@ -225,7 +228,7 @@ static int setup_virtual_dp_monitor(struct intel_vgpu *vgpu, int port_num, return -ENOMEM; } - memcpy(port->edid->edid_block, virtual_dp_monitor_edid[GVT_EDID_1920_1200], + memcpy(port->edid->edid_block, virtual_dp_monitor_edid[resolution], EDID_SIZE); port->edid->data_valid = true; @@ -358,16 +361,18 @@ void intel_vgpu_clean_display(struct intel_vgpu *vgpu) * Zero on success, negative error code if failed. * */ -int intel_vgpu_init_display(struct intel_vgpu *vgpu) +int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution) { struct drm_i915_private *dev_priv = vgpu->gvt->dev_priv; intel_vgpu_init_i2c_edid(vgpu); if (IS_SKYLAKE(dev_priv)) - return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D); + return setup_virtual_dp_monitor(vgpu, PORT_D, GVT_DP_D, + resolution); else - return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B); + return setup_virtual_dp_monitor(vgpu, PORT_B, GVT_DP_B, + resolution); } /** diff --git a/drivers/gpu/drm/i915/gvt/display.h b/drivers/gpu/drm/i915/gvt/display.h index 84f160bb7bc2..d73de22102e2 100644 --- a/drivers/gpu/drm/i915/gvt/display.h +++ b/drivers/gpu/drm/i915/gvt/display.h @@ -160,10 +160,22 @@ enum intel_vgpu_edid { GVT_EDID_NUM, }; +static inline char *vgpu_edid_str(enum intel_vgpu_edid id) +{ + switch (id) { + case GVT_EDID_1024_768: + return "1024x768"; + case GVT_EDID_1920_1200: + return "1920x1200"; + default: + return ""; + } +} + void intel_gvt_emulate_vblank(struct intel_gvt *gvt); void intel_gvt_check_vblank_emulation(struct intel_gvt *gvt); -int intel_vgpu_init_display(struct intel_vgpu *vgpu); +int intel_vgpu_init_display(struct intel_vgpu *vgpu, u64 resolution); void intel_vgpu_reset_display(struct intel_vgpu *vgpu); void intel_vgpu_clean_display(struct intel_vgpu *vgpu); diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index faff044c6434..23791920ced1 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -216,6 +216,7 @@ struct intel_vgpu_type { unsigned int low_gm_size; unsigned int high_gm_size; unsigned int fence; + enum intel_vgpu_edid resolution; }; struct intel_gvt { @@ -318,6 +319,7 @@ struct intel_vgpu_creation_params { __u64 low_gm_sz; /* in MB */ __u64 high_gm_sz; /* in MB */ __u64 fence_sz; + __u64 resolution; __s32 primary; __u64 vgpu_id; }; diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 10c3a4b95a92..182914c22ac5 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -295,10 +295,10 @@ static ssize_t description_show(struct kobject *kobj, struct device *dev, return 0; return sprintf(buf, "low_gm_size: %dMB\nhigh_gm_size: %dMB\n" - "fence: %d\n", - BYTES_TO_MB(type->low_gm_size), - BYTES_TO_MB(type->high_gm_size), - type->fence); + "fence: %d\nresolution: %s\n", + BYTES_TO_MB(type->low_gm_size), + BYTES_TO_MB(type->high_gm_size), + type->fence, vgpu_edid_str(type->resolution)); } static MDEV_TYPE_ATTR_RO(available_instance); diff --git a/drivers/gpu/drm/i915/gvt/vgpu.c b/drivers/gpu/drm/i915/gvt/vgpu.c index c27c13c3cc48..41cfa5ccae84 100644 --- a/drivers/gpu/drm/i915/gvt/vgpu.c +++ b/drivers/gpu/drm/i915/gvt/vgpu.c @@ -68,13 +68,14 @@ static struct { unsigned int low_mm; unsigned int high_mm; unsigned int fence; + enum intel_vgpu_edid edid; char *name; } vgpu_types[] = { /* Fixed vGPU type table */ - { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, "8" }, - { MB_TO_BYTES(128), MB_TO_BYTES(512), 4, "4" }, - { MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, "2" }, - { MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, "1" }, + { MB_TO_BYTES(64), MB_TO_BYTES(512), 4, GVT_EDID_1024_768, "8" }, + { MB_TO_BYTES(128), MB_TO_BYTES(512), 4, GVT_EDID_1920_1200, "4" }, + { MB_TO_BYTES(256), MB_TO_BYTES(1024), 4, GVT_EDID_1920_1200, "2" }, + { MB_TO_BYTES(512), MB_TO_BYTES(2048), 4, GVT_EDID_1920_1200, "1" }, }; /** @@ -119,6 +120,7 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) gvt->types[i].low_gm_size = vgpu_types[i].low_mm; gvt->types[i].high_gm_size = vgpu_types[i].high_mm; gvt->types[i].fence = vgpu_types[i].fence; + gvt->types[i].resolution = vgpu_types[i].edid; gvt->types[i].avail_instance = min(low_avail / vgpu_types[i].low_mm, high_avail / vgpu_types[i].high_mm); @@ -129,11 +131,12 @@ int intel_gvt_init_vgpu_types(struct intel_gvt *gvt) sprintf(gvt->types[i].name, "GVTg_V5_%s", vgpu_types[i].name); - gvt_dbg_core("type[%d]: %s avail %u low %u high %u fence %u\n", + gvt_dbg_core("type[%d]: %s avail %u low %u high %u fence %u res %s\n", i, gvt->types[i].name, gvt->types[i].avail_instance, gvt->types[i].low_gm_size, - gvt->types[i].high_gm_size, gvt->types[i].fence); + gvt->types[i].high_gm_size, gvt->types[i].fence, + vgpu_edid_str(gvt->types[i].resolution)); } gvt->num_types = i; @@ -258,7 +261,7 @@ static struct intel_vgpu *__intel_gvt_create_vgpu(struct intel_gvt *gvt, if (ret) goto out_detach_hypervisor_vgpu; - ret = intel_vgpu_init_display(vgpu); + ret = intel_vgpu_init_display(vgpu, param->resolution); if (ret) goto out_clean_gtt; @@ -322,6 +325,7 @@ struct intel_vgpu *intel_gvt_create_vgpu(struct intel_gvt *gvt, param.low_gm_sz = type->low_gm_size; param.high_gm_sz = type->high_gm_size; param.fence_sz = type->fence; + param.resolution = type->resolution; /* XXX current param based on MB */ param.low_gm_sz = BYTES_TO_MB(param.low_gm_sz); -- cgit From 8bcd7c188bc479bea866d286a7dc0af9734c3c64 Mon Sep 17 00:00:00 2001 From: Weinan Li Date: Fri, 24 Feb 2017 17:07:38 +0800 Subject: drm/i915/gvt: fix pcode mailbox write emulation of BDW Add pcode mailbox write emulation in gvt for BDW, reuse emulation code of Skylake. V2: refine comments, remove duplication defination of 0x138124, add IS_SKYLAKE() check for Skylake only pcode commands. Signed-off-by: Weinan Li Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 33 ++++++++++++++++++--------------- 1 file changed, 18 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index f89b183488e9..ebbe74072dc3 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1304,21 +1304,24 @@ static int mailbox_write(struct intel_vgpu *vgpu, unsigned int offset, u32 *data0 = &vgpu_vreg(vgpu, GEN6_PCODE_DATA); switch (cmd) { - case 0x6: - /** - * "Read memory latency" command on gen9. - * Below memory latency values are read - * from skylake platform. - */ - if (!*data0) - *data0 = 0x1e1a1100; - else - *data0 = 0x61514b3d; + case GEN9_PCODE_READ_MEM_LATENCY: + if (IS_SKYLAKE(vgpu->gvt->dev_priv)) { + /** + * "Read memory latency" command on gen9. + * Below memory latency values are read + * from skylake platform. + */ + if (!*data0) + *data0 = 0x1e1a1100; + else + *data0 = 0x61514b3d; + } break; case SKL_PCODE_CDCLK_CONTROL: - *data0 = SKL_CDCLK_READY_FOR_CHANGE; + if (IS_SKYLAKE(vgpu->gvt->dev_priv)) + *data0 = SKL_CDCLK_READY_FOR_CHANGE; break; - case 0x5: + case GEN6_PCODE_READ_RC6VIDS: *data0 |= 0x1; break; } @@ -2202,7 +2205,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_F(0x4f000, 0x90, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_D(GEN6_PCODE_MAILBOX, D_PRE_SKL); + MMIO_D(GEN6_PCODE_MAILBOX, D_PRE_BDW); MMIO_D(GEN6_PCODE_DATA, D_ALL); MMIO_D(0x13812c, D_ALL); MMIO_DH(GEN7_ERR_INT, D_ALL, NULL, NULL); @@ -2281,7 +2284,6 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_D(0x1a054, D_ALL); MMIO_D(0x44070, D_ALL); - MMIO_D(0x215c, D_HSW_PLUS); MMIO_DFH(0x2178, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x217c, D_ALL, F_CMD_ACCESS, NULL, NULL); @@ -2453,6 +2455,8 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_D(GEN7_MISCCPCTL, D_BDW_PLUS); MMIO_D(0x1c054, D_BDW_PLUS); + MMIO_DH(GEN6_PCODE_MAILBOX, D_BDW_PLUS, NULL, mailbox_write); + MMIO_D(GEN8_PRIVATE_PAT_LO, D_BDW_PLUS); MMIO_D(GEN8_PRIVATE_PAT_HI, D_BDW_PLUS); @@ -2544,7 +2548,6 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(HSW_PWR_WELL_BIOS, D_SKL); MMIO_DH(HSW_PWR_WELL_DRIVER, D_SKL, NULL, skl_power_well_ctl_write); - MMIO_DH(GEN6_PCODE_MAILBOX, D_SKL, NULL, mailbox_write); MMIO_D(0xa210, D_SKL_PLUS); MMIO_D(GEN9_MEDIA_PG_IDLE_HYSTERESIS, D_SKL_PLUS); MMIO_D(GEN9_RENDER_PG_IDLE_HYSTERESIS, D_SKL_PLUS); -- cgit From 41bfab35b3d0e0a85ed0c12d7bafd7484e96ca78 Mon Sep 17 00:00:00 2001 From: Pei Zhang Date: Fri, 24 Feb 2017 16:03:28 +0800 Subject: drm/i915/gvt: add some new MMIOs to cmd_access white list Guest is now acces some MMIOs (0x215c, RING_INSTPM) through command which is not originally in gvt's white list. This cause huge error log printed in gvt. This patch addes these MMIOs to the white list. V2. change the commit message content. V3. remove duplicate defination of 0x20c0. V4. refine code style. Signed-off-by: Pei Zhang Signed-off-by: Weinan Li Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index ebbe74072dc3..57b4d538f370 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1589,7 +1589,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) #undef RING_REG MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS, ring_timestamp_mmio_read, NULL); MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS, @@ -2284,7 +2285,7 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_D(0x1a054, D_ALL); MMIO_D(0x44070, D_ALL); - MMIO_D(0x215c, D_HSW_PLUS); + MMIO_DFH(0x215c, D_HSW_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x2178, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x217c, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x12178, D_ALL, F_CMD_ACCESS, NULL, NULL); -- cgit From 9fc5cf6e14fc1db40ea8a1c10061bb9586e78585 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:24 +0100 Subject: platform/x86: fujitsu-laptop: clearly denote backlight-related symbols MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Unify naming for all backlight-related functions, structures, variables and constants by using a consistent "_bl"/"_BL" suffix/infix. Adjust indentation to make checkpatch happy. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 214 +++++++++++++++++----------------- 1 file changed, 107 insertions(+), 107 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 2b218b1d13e5..e1737b9d9d95 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -78,10 +78,10 @@ #define FUJITSU_LCD_N_LEVELS 8 -#define ACPI_FUJITSU_CLASS "fujitsu" -#define ACPI_FUJITSU_HID "FUJ02B1" -#define ACPI_FUJITSU_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver" -#define ACPI_FUJITSU_DEVICE_NAME "Fujitsu FUJ02B1" +#define ACPI_FUJITSU_CLASS "fujitsu" +#define ACPI_FUJITSU_BL_HID "FUJ02B1" +#define ACPI_FUJITSU_BL_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver" +#define ACPI_FUJITSU_BL_DEVICE_NAME "Fujitsu FUJ02B1" #define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3" #define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver" #define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3" @@ -136,7 +136,7 @@ #endif /* Device controlling the backlight and associated keys */ -struct fujitsu_t { +struct fujitsu_bl { acpi_handle acpi_handle; struct acpi_device *dev; struct input_dev *input; @@ -150,7 +150,7 @@ struct fujitsu_t { unsigned int brightness_level; }; -static struct fujitsu_t *fujitsu; +static struct fujitsu_bl *fujitsu_bl; static int use_alt_lcd_levels = -1; static int disable_brightness_adjust = -1; @@ -222,7 +222,7 @@ static struct led_classdev eco_led = { static u32 dbg_level = 0x03; #endif -static void acpi_fujitsu_notify(struct acpi_device *device, u32 event); +static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event); /* Fujitsu ACPI interface function */ @@ -373,10 +373,10 @@ static int set_lcd_level(int level) vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n", level); - if (level < 0 || level >= fujitsu->max_brightness) + if (level < 0 || level >= fujitsu_bl->max_brightness) return -EINVAL; - status = acpi_get_handle(fujitsu->acpi_handle, "SBLL", &handle); + status = acpi_get_handle(fujitsu_bl->acpi_handle, "SBLL", &handle); if (ACPI_FAILURE(status)) { vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBLL not present\n"); return -ENODEV; @@ -398,10 +398,10 @@ static int set_lcd_level_alt(int level) vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n", level); - if (level < 0 || level >= fujitsu->max_brightness) + if (level < 0 || level >= fujitsu_bl->max_brightness) return -EINVAL; - status = acpi_get_handle(fujitsu->acpi_handle, "SBL2", &handle); + status = acpi_get_handle(fujitsu_bl->acpi_handle, "SBL2", &handle); if (ACPI_FAILURE(status)) { vdbg_printk(FUJLAPTOP_DBG_ERROR, "SBL2 not present\n"); return -ENODEV; @@ -421,19 +421,19 @@ static int get_lcd_level(void) vdbg_printk(FUJLAPTOP_DBG_TRACE, "get lcd level via GBLL\n"); - status = - acpi_evaluate_integer(fujitsu->acpi_handle, "GBLL", NULL, &state); + status = acpi_evaluate_integer(fujitsu_bl->acpi_handle, "GBLL", NULL, + &state); if (ACPI_FAILURE(status)) return 0; - fujitsu->brightness_level = state & 0x0fffffff; + fujitsu_bl->brightness_level = state & 0x0fffffff; if (state & 0x80000000) - fujitsu->brightness_changed = 1; + fujitsu_bl->brightness_changed = 1; else - fujitsu->brightness_changed = 0; + fujitsu_bl->brightness_changed = 0; - return fujitsu->brightness_level; + return fujitsu_bl->brightness_level; } static int get_max_brightness(void) @@ -443,14 +443,14 @@ static int get_max_brightness(void) vdbg_printk(FUJLAPTOP_DBG_TRACE, "get max lcd level via RBLL\n"); - status = - acpi_evaluate_integer(fujitsu->acpi_handle, "RBLL", NULL, &state); + status = acpi_evaluate_integer(fujitsu_bl->acpi_handle, "RBLL", NULL, + &state); if (ACPI_FAILURE(status)) return -1; - fujitsu->max_brightness = state; + fujitsu_bl->max_brightness = state; - return fujitsu->max_brightness; + return fujitsu_bl->max_brightness; } /* Backlight device stuff */ @@ -483,7 +483,7 @@ static int bl_update_status(struct backlight_device *b) return ret; } -static const struct backlight_ops fujitsubl_ops = { +static const struct backlight_ops fujitsu_bl_ops = { .get_brightness = bl_get_brightness, .update_status = bl_update_status, }; @@ -511,7 +511,7 @@ show_brightness_changed(struct device *dev, int ret; - ret = fujitsu->brightness_changed; + ret = fujitsu_bl->brightness_changed; if (ret < 0) return ret; @@ -539,7 +539,7 @@ static ssize_t store_lcd_level(struct device *dev, int level, ret; if (sscanf(buf, "%i", &level) != 1 - || (level < 0 || level >= fujitsu->max_brightness)) + || (level < 0 || level >= fujitsu_bl->max_brightness)) return -EINVAL; if (use_alt_lcd_levels) @@ -644,25 +644,25 @@ static void __init dmi_check_cb_common(const struct dmi_system_id *id) static int __init dmi_check_cb_s6410(const struct dmi_system_id *id) { dmi_check_cb_common(id); - fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ - fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ + fujitsu_bl->keycode1 = KEY_SCREENLOCK; /* "Lock" */ + fujitsu_bl->keycode2 = KEY_HELP; /* "Mobility Center" */ return 1; } static int __init dmi_check_cb_s6420(const struct dmi_system_id *id) { dmi_check_cb_common(id); - fujitsu->keycode1 = KEY_SCREENLOCK; /* "Lock" */ - fujitsu->keycode2 = KEY_HELP; /* "Mobility Center" */ + fujitsu_bl->keycode1 = KEY_SCREENLOCK; /* "Lock" */ + fujitsu_bl->keycode2 = KEY_HELP; /* "Mobility Center" */ return 1; } static int __init dmi_check_cb_p8010(const struct dmi_system_id *id) { dmi_check_cb_common(id); - fujitsu->keycode1 = KEY_HELP; /* "Support" */ - fujitsu->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */ - fujitsu->keycode4 = KEY_WWW; /* "Internet" */ + fujitsu_bl->keycode1 = KEY_HELP; /* "Support" */ + fujitsu_bl->keycode3 = KEY_SWITCHVIDEOMODE; /* "Presentation" */ + fujitsu_bl->keycode4 = KEY_WWW; /* "Internet" */ return 1; } @@ -693,7 +693,7 @@ static const struct dmi_system_id fujitsu_dmi_table[] __initconst = { /* ACPI device for LCD brightness control */ -static int acpi_fujitsu_add(struct acpi_device *device) +static int acpi_fujitsu_bl_add(struct acpi_device *device) { int state = 0; struct input_dev *input; @@ -702,22 +702,22 @@ static int acpi_fujitsu_add(struct acpi_device *device) if (!device) return -EINVAL; - fujitsu->acpi_handle = device->handle; - sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_DEVICE_NAME); + fujitsu_bl->acpi_handle = device->handle; + sprintf(acpi_device_name(device), "%s", ACPI_FUJITSU_BL_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); - device->driver_data = fujitsu; + device->driver_data = fujitsu_bl; - fujitsu->input = input = input_allocate_device(); + fujitsu_bl->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_stop; } - snprintf(fujitsu->phys, sizeof(fujitsu->phys), + snprintf(fujitsu_bl->phys, sizeof(fujitsu_bl->phys), "%s/video/input0", acpi_device_hid(device)); input->name = acpi_device_name(device); - input->phys = fujitsu->phys; + input->phys = fujitsu_bl->phys; input->id.bustype = BUS_HOST; input->id.product = 0x06; input->dev.parent = &device->dev; @@ -730,7 +730,7 @@ static int acpi_fujitsu_add(struct acpi_device *device) if (error) goto err_free_input_dev; - error = acpi_bus_update_power(fujitsu->acpi_handle, &state); + error = acpi_bus_update_power(fujitsu_bl->acpi_handle, &state); if (error) { pr_err("Error reading power state\n"); goto err_unregister_input_dev; @@ -740,7 +740,7 @@ static int acpi_fujitsu_add(struct acpi_device *device) acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); - fujitsu->dev = device; + fujitsu_bl->dev = device; if (acpi_has_method(device->handle, METHOD_NAME__INI)) { vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); @@ -758,7 +758,7 @@ static int acpi_fujitsu_add(struct acpi_device *device) use_alt_lcd_levels, disable_brightness_adjust); if (get_max_brightness() <= 0) - fujitsu->max_brightness = FUJITSU_LCD_N_LEVELS; + fujitsu_bl->max_brightness = FUJITSU_LCD_N_LEVELS; get_lcd_level(); return 0; @@ -772,38 +772,38 @@ err_stop: return error; } -static int acpi_fujitsu_remove(struct acpi_device *device) +static int acpi_fujitsu_bl_remove(struct acpi_device *device) { - struct fujitsu_t *fujitsu = acpi_driver_data(device); - struct input_dev *input = fujitsu->input; + struct fujitsu_bl *fujitsu_bl = acpi_driver_data(device); + struct input_dev *input = fujitsu_bl->input; input_unregister_device(input); - fujitsu->acpi_handle = NULL; + fujitsu_bl->acpi_handle = NULL; return 0; } /* Brightness notify */ -static void acpi_fujitsu_notify(struct acpi_device *device, u32 event) +static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event) { struct input_dev *input; int keycode; int oldb, newb; - input = fujitsu->input; + input = fujitsu_bl->input; switch (event) { case ACPI_FUJITSU_NOTIFY_CODE1: keycode = 0; - oldb = fujitsu->brightness_level; + oldb = fujitsu_bl->brightness_level; get_lcd_level(); - newb = fujitsu->brightness_level; + newb = fujitsu_bl->brightness_level; vdbg_printk(FUJLAPTOP_DBG_TRACE, "brightness button event [%i -> %i (%i)]\n", - oldb, newb, fujitsu->brightness_changed); + oldb, newb, fujitsu_bl->brightness_changed); if (oldb < newb) { if (disable_brightness_adjust != 1) { @@ -882,11 +882,11 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) input->dev.parent = &device->dev; set_bit(EV_KEY, input->evbit); - set_bit(fujitsu->keycode1, input->keybit); - set_bit(fujitsu->keycode2, input->keybit); - set_bit(fujitsu->keycode3, input->keybit); - set_bit(fujitsu->keycode4, input->keybit); - set_bit(fujitsu->keycode5, input->keybit); + set_bit(fujitsu_bl->keycode1, input->keybit); + set_bit(fujitsu_bl->keycode2, input->keybit); + set_bit(fujitsu_bl->keycode3, input->keybit); + set_bit(fujitsu_bl->keycode4, input->keybit); + set_bit(fujitsu_bl->keycode5, input->keybit); set_bit(KEY_TOUCHPAD_TOGGLE, input->keybit); set_bit(KEY_UNKNOWN, input->keybit); @@ -937,7 +937,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) #if IS_ENABLED(CONFIG_LEDS_CLASS) if (call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & LOGOLAMP_POWERON) { - result = led_classdev_register(&fujitsu->pf_device->dev, + result = led_classdev_register(&fujitsu_bl->pf_device->dev, &logolamp_led); if (result == 0) { fujitsu_hotkey->logolamp_registered = 1; @@ -949,7 +949,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & KEYBOARD_LAMPS) && (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) == 0x0)) { - result = led_classdev_register(&fujitsu->pf_device->dev, + result = led_classdev_register(&fujitsu_bl->pf_device->dev, &kblamps_led); if (result == 0) { fujitsu_hotkey->kblamps_registered = 1; @@ -966,7 +966,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) * that an RF LED is present. */ if (call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0) & BIT(24)) { - result = led_classdev_register(&fujitsu->pf_device->dev, + result = led_classdev_register(&fujitsu_bl->pf_device->dev, &radio_led); if (result == 0) { fujitsu_hotkey->radio_led_registered = 1; @@ -983,7 +983,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) */ if ((call_fext_func(FUNC_LEDS, 0x0, 0x0, 0x0) & BIT(14)) && (call_fext_func(FUNC_LEDS, 0x2, ECO_LED, 0x0) != UNSUPPORTED_CMD)) { - result = led_classdev_register(&fujitsu->pf_device->dev, + result = led_classdev_register(&fujitsu_bl->pf_device->dev, &eco_led); if (result == 0) { fujitsu_hotkey->eco_led_registered = 1; @@ -1103,19 +1103,19 @@ static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) && (i++) < MAX_HOTKEY_RINGBUFFER_SIZE) { switch (irb & 0x4ff) { case KEY1_CODE: - keycode = fujitsu->keycode1; + keycode = fujitsu_bl->keycode1; break; case KEY2_CODE: - keycode = fujitsu->keycode2; + keycode = fujitsu_bl->keycode2; break; case KEY3_CODE: - keycode = fujitsu->keycode3; + keycode = fujitsu_bl->keycode3; break; case KEY4_CODE: - keycode = fujitsu->keycode4; + keycode = fujitsu_bl->keycode4; break; case KEY5_CODE: - keycode = fujitsu->keycode5; + keycode = fujitsu_bl->keycode5; break; case 0: keycode = 0; @@ -1150,19 +1150,19 @@ static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) /* Initialization */ -static const struct acpi_device_id fujitsu_device_ids[] = { - {ACPI_FUJITSU_HID, 0}, +static const struct acpi_device_id fujitsu_bl_device_ids[] = { + {ACPI_FUJITSU_BL_HID, 0}, {"", 0}, }; -static struct acpi_driver acpi_fujitsu_driver = { - .name = ACPI_FUJITSU_DRIVER_NAME, +static struct acpi_driver acpi_fujitsu_bl_driver = { + .name = ACPI_FUJITSU_BL_DRIVER_NAME, .class = ACPI_FUJITSU_CLASS, - .ids = fujitsu_device_ids, + .ids = fujitsu_bl_device_ids, .ops = { - .add = acpi_fujitsu_add, - .remove = acpi_fujitsu_remove, - .notify = acpi_fujitsu_notify, + .add = acpi_fujitsu_bl_add, + .remove = acpi_fujitsu_bl_remove, + .notify = acpi_fujitsu_bl_notify, }, }; @@ -1183,7 +1183,7 @@ static struct acpi_driver acpi_fujitsu_hotkey_driver = { }; static const struct acpi_device_id fujitsu_ids[] __used = { - {ACPI_FUJITSU_HID, 0}, + {ACPI_FUJITSU_BL_HID, 0}, {ACPI_FUJITSU_HOTKEY_HID, 0}, {"", 0} }; @@ -1196,17 +1196,17 @@ static int __init fujitsu_init(void) if (acpi_disabled) return -ENODEV; - fujitsu = kzalloc(sizeof(struct fujitsu_t), GFP_KERNEL); - if (!fujitsu) + fujitsu_bl = kzalloc(sizeof(struct fujitsu_bl), GFP_KERNEL); + if (!fujitsu_bl) return -ENOMEM; - fujitsu->keycode1 = KEY_PROG1; - fujitsu->keycode2 = KEY_PROG2; - fujitsu->keycode3 = KEY_PROG3; - fujitsu->keycode4 = KEY_PROG4; - fujitsu->keycode5 = KEY_RFKILL; + fujitsu_bl->keycode1 = KEY_PROG1; + fujitsu_bl->keycode2 = KEY_PROG2; + fujitsu_bl->keycode3 = KEY_PROG3; + fujitsu_bl->keycode4 = KEY_PROG4; + fujitsu_bl->keycode5 = KEY_RFKILL; dmi_check_system(fujitsu_dmi_table); - result = acpi_bus_register_driver(&acpi_fujitsu_driver); + result = acpi_bus_register_driver(&acpi_fujitsu_bl_driver); if (result < 0) { ret = -ENODEV; goto fail_acpi; @@ -1214,18 +1214,18 @@ static int __init fujitsu_init(void) /* Register platform stuff */ - fujitsu->pf_device = platform_device_alloc("fujitsu-laptop", -1); - if (!fujitsu->pf_device) { + fujitsu_bl->pf_device = platform_device_alloc("fujitsu-laptop", -1); + if (!fujitsu_bl->pf_device) { ret = -ENOMEM; goto fail_platform_driver; } - ret = platform_device_add(fujitsu->pf_device); + ret = platform_device_add(fujitsu_bl->pf_device); if (ret) goto fail_platform_device1; ret = - sysfs_create_group(&fujitsu->pf_device->dev.kobj, + sysfs_create_group(&fujitsu_bl->pf_device->dev.kobj, &fujitsupf_attribute_group); if (ret) goto fail_platform_device2; @@ -1236,19 +1236,19 @@ static int __init fujitsu_init(void) struct backlight_properties props; memset(&props, 0, sizeof(struct backlight_properties)); - max_brightness = fujitsu->max_brightness; + max_brightness = fujitsu_bl->max_brightness; props.type = BACKLIGHT_PLATFORM; props.max_brightness = max_brightness - 1; - fujitsu->bl_device = backlight_device_register("fujitsu-laptop", - NULL, NULL, - &fujitsubl_ops, - &props); - if (IS_ERR(fujitsu->bl_device)) { - ret = PTR_ERR(fujitsu->bl_device); - fujitsu->bl_device = NULL; + fujitsu_bl->bl_device = backlight_device_register("fujitsu-laptop", + NULL, NULL, + &fujitsu_bl_ops, + &props); + if (IS_ERR(fujitsu_bl->bl_device)) { + ret = PTR_ERR(fujitsu_bl->bl_device); + fujitsu_bl->bl_device = NULL; goto fail_sysfs_group; } - fujitsu->bl_device->props.brightness = fujitsu->brightness_level; + fujitsu_bl->bl_device->props.brightness = fujitsu_bl->brightness_level; } ret = platform_driver_register(&fujitsupf_driver); @@ -1272,9 +1272,9 @@ static int __init fujitsu_init(void) /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ if (acpi_video_get_backlight_type() == acpi_backlight_vendor) { if (call_fext_func(FUNC_BACKLIGHT, 0x2, 0x4, 0x0) == 3) - fujitsu->bl_device->props.power = FB_BLANK_POWERDOWN; + fujitsu_bl->bl_device->props.power = FB_BLANK_POWERDOWN; else - fujitsu->bl_device->props.power = FB_BLANK_UNBLANK; + fujitsu_bl->bl_device->props.power = FB_BLANK_UNBLANK; } pr_info("driver " FUJITSU_DRIVER_VERSION " successfully loaded\n"); @@ -1286,18 +1286,18 @@ fail_hotkey1: fail_hotkey: platform_driver_unregister(&fujitsupf_driver); fail_backlight: - backlight_device_unregister(fujitsu->bl_device); + backlight_device_unregister(fujitsu_bl->bl_device); fail_sysfs_group: - sysfs_remove_group(&fujitsu->pf_device->dev.kobj, + sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj, &fujitsupf_attribute_group); fail_platform_device2: - platform_device_del(fujitsu->pf_device); + platform_device_del(fujitsu_bl->pf_device); fail_platform_device1: - platform_device_put(fujitsu->pf_device); + platform_device_put(fujitsu_bl->pf_device); fail_platform_driver: - acpi_bus_unregister_driver(&acpi_fujitsu_driver); + acpi_bus_unregister_driver(&acpi_fujitsu_bl_driver); fail_acpi: - kfree(fujitsu); + kfree(fujitsu_bl); return ret; } @@ -1310,16 +1310,16 @@ static void __exit fujitsu_cleanup(void) platform_driver_unregister(&fujitsupf_driver); - backlight_device_unregister(fujitsu->bl_device); + backlight_device_unregister(fujitsu_bl->bl_device); - sysfs_remove_group(&fujitsu->pf_device->dev.kobj, + sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj, &fujitsupf_attribute_group); - platform_device_unregister(fujitsu->pf_device); + platform_device_unregister(fujitsu_bl->pf_device); - acpi_bus_unregister_driver(&acpi_fujitsu_driver); + acpi_bus_unregister_driver(&acpi_fujitsu_bl_driver); - kfree(fujitsu); + kfree(fujitsu_bl); pr_info("driver unloaded\n"); } -- cgit From 6942eabc140eac54d5c0db2695eed63768209c34 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:25 +0100 Subject: platform/x86: fujitsu-laptop: replace "hotkey" with "laptop" in symbol names MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Functions, structures, variables and constants whose names currently contain the "hotkey" keyword are not only responsible for handling hotkeys, but also other laptop-related features (rfkill, lid, dock, LEDs). Fix their naming by using a consistent "_laptop"/"_LAPTOP" suffix/infix. Update comments so that they reflect this change. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 158 +++++++++++++++++----------------- 1 file changed, 79 insertions(+), 79 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index e1737b9d9d95..70124004b346 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -82,9 +82,9 @@ #define ACPI_FUJITSU_BL_HID "FUJ02B1" #define ACPI_FUJITSU_BL_DRIVER_NAME "Fujitsu laptop FUJ02B1 ACPI brightness driver" #define ACPI_FUJITSU_BL_DEVICE_NAME "Fujitsu FUJ02B1" -#define ACPI_FUJITSU_HOTKEY_HID "FUJ02E3" -#define ACPI_FUJITSU_HOTKEY_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver" -#define ACPI_FUJITSU_HOTKEY_DEVICE_NAME "Fujitsu FUJ02E3" +#define ACPI_FUJITSU_LAPTOP_HID "FUJ02E3" +#define ACPI_FUJITSU_LAPTOP_DRIVER_NAME "Fujitsu laptop FUJ02E3 ACPI hotkeys driver" +#define ACPI_FUJITSU_LAPTOP_DEVICE_NAME "Fujitsu FUJ02E3" #define ACPI_FUJITSU_NOTIFY_CODE1 0x80 @@ -154,8 +154,8 @@ static struct fujitsu_bl *fujitsu_bl; static int use_alt_lcd_levels = -1; static int disable_brightness_adjust = -1; -/* Device used to access other hotkeys on the laptop */ -struct fujitsu_hotkey_t { +/* Device used to access hotkeys and other features on the laptop */ +struct fujitsu_laptop { acpi_handle acpi_handle; struct acpi_device *dev; struct input_dev *input; @@ -171,9 +171,9 @@ struct fujitsu_hotkey_t { int eco_led_registered; }; -static struct fujitsu_hotkey_t *fujitsu_hotkey; +static struct fujitsu_laptop *fujitsu_laptop; -static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event); +static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event); #if IS_ENABLED(CONFIG_LEDS_CLASS) static enum led_brightness logolamp_get(struct led_classdev *cdev); @@ -239,7 +239,7 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2) unsigned long long value; acpi_handle handle = NULL; - status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle); + status = acpi_get_handle(fujitsu_laptop->acpi_handle, "FUNC", &handle); if (ACPI_FAILURE(status)) { vdbg_printk(FUJLAPTOP_DBG_ERROR, "FUNC interface is not present\n"); @@ -567,9 +567,9 @@ static ssize_t show_lid_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_hotkey->rfkill_supported & 0x100)) + if (!(fujitsu_laptop->rfkill_supported & 0x100)) return sprintf(buf, "unknown\n"); - if (fujitsu_hotkey->rfkill_state & 0x100) + if (fujitsu_laptop->rfkill_state & 0x100) return sprintf(buf, "open\n"); else return sprintf(buf, "closed\n"); @@ -579,9 +579,9 @@ static ssize_t show_dock_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_hotkey->rfkill_supported & 0x200)) + if (!(fujitsu_laptop->rfkill_supported & 0x200)) return sprintf(buf, "unknown\n"); - if (fujitsu_hotkey->rfkill_state & 0x200) + if (fujitsu_laptop->rfkill_state & 0x200) return sprintf(buf, "docked\n"); else return sprintf(buf, "undocked\n"); @@ -591,9 +591,9 @@ static ssize_t show_radios_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_hotkey->rfkill_supported & 0x20)) + if (!(fujitsu_laptop->rfkill_supported & 0x20)) return sprintf(buf, "unknown\n"); - if (fujitsu_hotkey->rfkill_state & 0x20) + if (fujitsu_laptop->rfkill_state & 0x20) return sprintf(buf, "on\n"); else return sprintf(buf, "killed\n"); @@ -840,7 +840,7 @@ static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event) /* ACPI device for hotkey handling */ -static int acpi_fujitsu_hotkey_add(struct acpi_device *device) +static int acpi_fujitsu_laptop_add(struct acpi_device *device) { int result = 0; int state = 0; @@ -851,32 +851,32 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if (!device) return -EINVAL; - fujitsu_hotkey->acpi_handle = device->handle; + fujitsu_laptop->acpi_handle = device->handle; sprintf(acpi_device_name(device), "%s", - ACPI_FUJITSU_HOTKEY_DEVICE_NAME); + ACPI_FUJITSU_LAPTOP_DEVICE_NAME); sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS); - device->driver_data = fujitsu_hotkey; + device->driver_data = fujitsu_laptop; /* kfifo */ - spin_lock_init(&fujitsu_hotkey->fifo_lock); - error = kfifo_alloc(&fujitsu_hotkey->fifo, RINGBUFFERSIZE * sizeof(int), + spin_lock_init(&fujitsu_laptop->fifo_lock); + error = kfifo_alloc(&fujitsu_laptop->fifo, RINGBUFFERSIZE * sizeof(int), GFP_KERNEL); if (error) { pr_err("kfifo_alloc failed\n"); goto err_stop; } - fujitsu_hotkey->input = input = input_allocate_device(); + fujitsu_laptop->input = input = input_allocate_device(); if (!input) { error = -ENOMEM; goto err_free_fifo; } - snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys), + snprintf(fujitsu_laptop->phys, sizeof(fujitsu_laptop->phys), "%s/video/input0", acpi_device_hid(device)); input->name = acpi_device_name(device); - input->phys = fujitsu_hotkey->phys; + input->phys = fujitsu_laptop->phys; input->id.bustype = BUS_HOST; input->id.product = 0x06; input->dev.parent = &device->dev; @@ -894,7 +894,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) if (error) goto err_free_input_dev; - error = acpi_bus_update_power(fujitsu_hotkey->acpi_handle, &state); + error = acpi_bus_update_power(fujitsu_laptop->acpi_handle, &state); if (error) { pr_err("Error reading power state\n"); goto err_unregister_input_dev; @@ -904,7 +904,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); - fujitsu_hotkey->dev = device; + fujitsu_laptop->dev = device; if (acpi_has_method(device->handle, METHOD_NAME__INI)) { vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n"); @@ -920,16 +920,16 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) ; /* No action, result is discarded */ vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); - fujitsu_hotkey->rfkill_supported = + fujitsu_laptop->rfkill_supported = call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0); /* Make sure our bitmask of supported functions is cleared if the RFKILL function block is not implemented, like on the S7020. */ - if (fujitsu_hotkey->rfkill_supported == UNSUPPORTED_CMD) - fujitsu_hotkey->rfkill_supported = 0; + if (fujitsu_laptop->rfkill_supported == UNSUPPORTED_CMD) + fujitsu_laptop->rfkill_supported = 0; - if (fujitsu_hotkey->rfkill_supported) - fujitsu_hotkey->rfkill_state = + if (fujitsu_laptop->rfkill_supported) + fujitsu_laptop->rfkill_state = call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); /* Suspect this is a keymap of the application panel, print it */ @@ -940,7 +940,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) result = led_classdev_register(&fujitsu_bl->pf_device->dev, &logolamp_led); if (result == 0) { - fujitsu_hotkey->logolamp_registered = 1; + fujitsu_laptop->logolamp_registered = 1; } else { pr_err("Could not register LED handler for logo lamp, error %i\n", result); @@ -952,7 +952,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) result = led_classdev_register(&fujitsu_bl->pf_device->dev, &kblamps_led); if (result == 0) { - fujitsu_hotkey->kblamps_registered = 1; + fujitsu_laptop->kblamps_registered = 1; } else { pr_err("Could not register LED handler for keyboard lamps, error %i\n", result); @@ -969,7 +969,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) result = led_classdev_register(&fujitsu_bl->pf_device->dev, &radio_led); if (result == 0) { - fujitsu_hotkey->radio_led_registered = 1; + fujitsu_laptop->radio_led_registered = 1; } else { pr_err("Could not register LED handler for radio LED, error %i\n", result); @@ -986,7 +986,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device) result = led_classdev_register(&fujitsu_bl->pf_device->dev, &eco_led); if (result == 0) { - fujitsu_hotkey->eco_led_registered = 1; + fujitsu_laptop->eco_led_registered = 1; } else { pr_err("Could not register LED handler for eco LED, error %i\n", result); @@ -1002,47 +1002,47 @@ err_unregister_input_dev: err_free_input_dev: input_free_device(input); err_free_fifo: - kfifo_free(&fujitsu_hotkey->fifo); + kfifo_free(&fujitsu_laptop->fifo); err_stop: return error; } -static int acpi_fujitsu_hotkey_remove(struct acpi_device *device) +static int acpi_fujitsu_laptop_remove(struct acpi_device *device) { - struct fujitsu_hotkey_t *fujitsu_hotkey = acpi_driver_data(device); - struct input_dev *input = fujitsu_hotkey->input; + struct fujitsu_laptop *fujitsu_laptop = acpi_driver_data(device); + struct input_dev *input = fujitsu_laptop->input; #if IS_ENABLED(CONFIG_LEDS_CLASS) - if (fujitsu_hotkey->logolamp_registered) + if (fujitsu_laptop->logolamp_registered) led_classdev_unregister(&logolamp_led); - if (fujitsu_hotkey->kblamps_registered) + if (fujitsu_laptop->kblamps_registered) led_classdev_unregister(&kblamps_led); - if (fujitsu_hotkey->radio_led_registered) + if (fujitsu_laptop->radio_led_registered) led_classdev_unregister(&radio_led); - if (fujitsu_hotkey->eco_led_registered) + if (fujitsu_laptop->eco_led_registered) led_classdev_unregister(&eco_led); #endif input_unregister_device(input); - kfifo_free(&fujitsu_hotkey->fifo); + kfifo_free(&fujitsu_laptop->fifo); - fujitsu_hotkey->acpi_handle = NULL; + fujitsu_laptop->acpi_handle = NULL; return 0; } -static void acpi_fujitsu_hotkey_press(int keycode) +static void acpi_fujitsu_laptop_press(int keycode) { - struct input_dev *input = fujitsu_hotkey->input; + struct input_dev *input = fujitsu_laptop->input; int status; - status = kfifo_in_locked(&fujitsu_hotkey->fifo, + status = kfifo_in_locked(&fujitsu_laptop->fifo, (unsigned char *)&keycode, sizeof(keycode), - &fujitsu_hotkey->fifo_lock); + &fujitsu_laptop->fifo_lock); if (status != sizeof(keycode)) { vdbg_printk(FUJLAPTOP_DBG_WARN, "Could not push keycode [0x%x]\n", keycode); @@ -1054,16 +1054,16 @@ static void acpi_fujitsu_hotkey_press(int keycode) "Push keycode into ringbuffer [%d]\n", keycode); } -static void acpi_fujitsu_hotkey_release(void) +static void acpi_fujitsu_laptop_release(void) { - struct input_dev *input = fujitsu_hotkey->input; + struct input_dev *input = fujitsu_laptop->input; int keycode, status; while (true) { - status = kfifo_out_locked(&fujitsu_hotkey->fifo, + status = kfifo_out_locked(&fujitsu_laptop->fifo, (unsigned char *)&keycode, sizeof(keycode), - &fujitsu_hotkey->fifo_lock); + &fujitsu_laptop->fifo_lock); if (status != sizeof(keycode)) return; input_report_key(input, keycode, 0); @@ -1073,14 +1073,14 @@ static void acpi_fujitsu_hotkey_release(void) } } -static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) +static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) { struct input_dev *input; int keycode; unsigned int irb = 1; int i; - input = fujitsu_hotkey->input; + input = fujitsu_laptop->input; if (event != ACPI_FUJITSU_NOTIFY_CODE1) { keycode = KEY_UNKNOWN; @@ -1093,8 +1093,8 @@ static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) return; } - if (fujitsu_hotkey->rfkill_supported) - fujitsu_hotkey->rfkill_state = + if (fujitsu_laptop->rfkill_supported) + fujitsu_laptop->rfkill_state = call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); i = 0; @@ -1128,16 +1128,16 @@ static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event) } if (keycode > 0) - acpi_fujitsu_hotkey_press(keycode); + acpi_fujitsu_laptop_press(keycode); else if (keycode == 0) - acpi_fujitsu_hotkey_release(); + acpi_fujitsu_laptop_release(); } /* On some models (first seen on the Skylake-based Lifebook * E736/E746/E756), the touchpad toggle hotkey (Fn+F4) is * handled in software; its state is queried using FUNC_RFKILL */ - if ((fujitsu_hotkey->rfkill_supported & BIT(26)) && + if ((fujitsu_laptop->rfkill_supported & BIT(26)) && (call_fext_func(FUNC_RFKILL, 0x1, 0x0, 0x0) & BIT(26))) { keycode = KEY_TOUCHPAD_TOGGLE; input_report_key(input, keycode, 1); @@ -1166,25 +1166,25 @@ static struct acpi_driver acpi_fujitsu_bl_driver = { }, }; -static const struct acpi_device_id fujitsu_hotkey_device_ids[] = { - {ACPI_FUJITSU_HOTKEY_HID, 0}, +static const struct acpi_device_id fujitsu_laptop_device_ids[] = { + {ACPI_FUJITSU_LAPTOP_HID, 0}, {"", 0}, }; -static struct acpi_driver acpi_fujitsu_hotkey_driver = { - .name = ACPI_FUJITSU_HOTKEY_DRIVER_NAME, +static struct acpi_driver acpi_fujitsu_laptop_driver = { + .name = ACPI_FUJITSU_LAPTOP_DRIVER_NAME, .class = ACPI_FUJITSU_CLASS, - .ids = fujitsu_hotkey_device_ids, + .ids = fujitsu_laptop_device_ids, .ops = { - .add = acpi_fujitsu_hotkey_add, - .remove = acpi_fujitsu_hotkey_remove, - .notify = acpi_fujitsu_hotkey_notify, + .add = acpi_fujitsu_laptop_add, + .remove = acpi_fujitsu_laptop_remove, + .notify = acpi_fujitsu_laptop_notify, }, }; static const struct acpi_device_id fujitsu_ids[] __used = { {ACPI_FUJITSU_BL_HID, 0}, - {ACPI_FUJITSU_HOTKEY_HID, 0}, + {ACPI_FUJITSU_LAPTOP_HID, 0}, {"", 0} }; MODULE_DEVICE_TABLE(acpi, fujitsu_ids); @@ -1255,18 +1255,18 @@ static int __init fujitsu_init(void) if (ret) goto fail_backlight; - /* Register hotkey driver */ + /* Register laptop driver */ - fujitsu_hotkey = kzalloc(sizeof(struct fujitsu_hotkey_t), GFP_KERNEL); - if (!fujitsu_hotkey) { + fujitsu_laptop = kzalloc(sizeof(struct fujitsu_laptop), GFP_KERNEL); + if (!fujitsu_laptop) { ret = -ENOMEM; - goto fail_hotkey; + goto fail_laptop; } - result = acpi_bus_register_driver(&acpi_fujitsu_hotkey_driver); + result = acpi_bus_register_driver(&acpi_fujitsu_laptop_driver); if (result < 0) { ret = -ENODEV; - goto fail_hotkey1; + goto fail_laptop1; } /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ @@ -1281,9 +1281,9 @@ static int __init fujitsu_init(void) return 0; -fail_hotkey1: - kfree(fujitsu_hotkey); -fail_hotkey: +fail_laptop1: + kfree(fujitsu_laptop); +fail_laptop: platform_driver_unregister(&fujitsupf_driver); fail_backlight: backlight_device_unregister(fujitsu_bl->bl_device); @@ -1304,9 +1304,9 @@ fail_acpi: static void __exit fujitsu_cleanup(void) { - acpi_bus_unregister_driver(&acpi_fujitsu_hotkey_driver); + acpi_bus_unregister_driver(&acpi_fujitsu_laptop_driver); - kfree(fujitsu_hotkey); + kfree(fujitsu_laptop); platform_driver_unregister(&fujitsupf_driver); -- cgit From 1650602691f4e8ea8f6e306452a72ac9a611932a Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:26 +0100 Subject: platform/x86: fujitsu-laptop: make platform-related variables match naming convention MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Replace "fujitsupf" with "fujitsu_pf" in all platform-related variable names to match the module-wide naming convention. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 70124004b346..6cdd1b334e8a 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -607,7 +607,7 @@ static DEVICE_ATTR(lid, 0444, show_lid_state, ignore_store); static DEVICE_ATTR(dock, 0444, show_dock_state, ignore_store); static DEVICE_ATTR(radios, 0444, show_radios_state, ignore_store); -static struct attribute *fujitsupf_attributes[] = { +static struct attribute *fujitsu_pf_attributes[] = { &dev_attr_brightness_changed.attr, &dev_attr_max_brightness.attr, &dev_attr_lcd_level.attr, @@ -617,11 +617,11 @@ static struct attribute *fujitsupf_attributes[] = { NULL }; -static struct attribute_group fujitsupf_attribute_group = { - .attrs = fujitsupf_attributes +static struct attribute_group fujitsu_pf_attribute_group = { + .attrs = fujitsu_pf_attributes }; -static struct platform_driver fujitsupf_driver = { +static struct platform_driver fujitsu_pf_driver = { .driver = { .name = "fujitsu-laptop", } @@ -1226,7 +1226,7 @@ static int __init fujitsu_init(void) ret = sysfs_create_group(&fujitsu_bl->pf_device->dev.kobj, - &fujitsupf_attribute_group); + &fujitsu_pf_attribute_group); if (ret) goto fail_platform_device2; @@ -1251,7 +1251,7 @@ static int __init fujitsu_init(void) fujitsu_bl->bl_device->props.brightness = fujitsu_bl->brightness_level; } - ret = platform_driver_register(&fujitsupf_driver); + ret = platform_driver_register(&fujitsu_pf_driver); if (ret) goto fail_backlight; @@ -1284,12 +1284,12 @@ static int __init fujitsu_init(void) fail_laptop1: kfree(fujitsu_laptop); fail_laptop: - platform_driver_unregister(&fujitsupf_driver); + platform_driver_unregister(&fujitsu_pf_driver); fail_backlight: backlight_device_unregister(fujitsu_bl->bl_device); fail_sysfs_group: sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj, - &fujitsupf_attribute_group); + &fujitsu_pf_attribute_group); fail_platform_device2: platform_device_del(fujitsu_bl->pf_device); fail_platform_device1: @@ -1308,12 +1308,12 @@ static void __exit fujitsu_cleanup(void) kfree(fujitsu_laptop); - platform_driver_unregister(&fujitsupf_driver); + platform_driver_unregister(&fujitsu_pf_driver); backlight_device_unregister(fujitsu_bl->bl_device); sysfs_remove_group(&fujitsu_bl->pf_device->dev.kobj, - &fujitsupf_attribute_group); + &fujitsu_pf_attribute_group); platform_device_unregister(fujitsu_bl->pf_device); -- cgit From 8ef27bd3410c4e5856bac2315ef51224926020e0 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:27 +0100 Subject: platform/x86: fujitsu-laptop: rename FUNC_RFKILL to FUNC_FLAGS MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit FUNC subfunction 0x1000 is currently referred to as FUNC_RFKILL, which is misleading, because it handles more than just radio devices (also lid, dock, LEDs). Rename the FUNC_RFKILL constant to FUNC_FLAGS. Replace "rfkill" with "flags" in the names of its associated fields inside struct fujitsu_laptop. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 50 +++++++++++++++++------------------ 1 file changed, 25 insertions(+), 25 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 6cdd1b334e8a..55d696262301 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -89,7 +89,7 @@ #define ACPI_FUJITSU_NOTIFY_CODE1 0x80 /* FUNC interface - command values */ -#define FUNC_RFKILL 0x1000 +#define FUNC_FLAGS 0x1000 #define FUNC_LEDS 0x1001 #define FUNC_BUTTONS 0x1002 #define FUNC_BACKLIGHT 0x1004 @@ -163,8 +163,8 @@ struct fujitsu_laptop { struct platform_device *pf_device; struct kfifo fifo; spinlock_t fifo_lock; - int rfkill_supported; - int rfkill_state; + int flags_supported; + int flags_state; int logolamp_registered; int kblamps_registered; int radio_led_registered; @@ -300,9 +300,9 @@ static int radio_led_set(struct led_classdev *cdev, enum led_brightness brightness) { if (brightness >= LED_FULL) - return call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, RADIO_LED_ON); + return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON, RADIO_LED_ON); else - return call_fext_func(FUNC_RFKILL, 0x5, RADIO_LED_ON, 0x0); + return call_fext_func(FUNC_FLAGS, 0x5, RADIO_LED_ON, 0x0); } static int eco_led_set(struct led_classdev *cdev, @@ -346,7 +346,7 @@ static enum led_brightness radio_led_get(struct led_classdev *cdev) { enum led_brightness brightness = LED_OFF; - if (call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0) & RADIO_LED_ON) + if (call_fext_func(FUNC_FLAGS, 0x4, 0x0, 0x0) & RADIO_LED_ON) brightness = LED_FULL; return brightness; @@ -567,9 +567,9 @@ static ssize_t show_lid_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->rfkill_supported & 0x100)) + if (!(fujitsu_laptop->flags_supported & 0x100)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->rfkill_state & 0x100) + if (fujitsu_laptop->flags_state & 0x100) return sprintf(buf, "open\n"); else return sprintf(buf, "closed\n"); @@ -579,9 +579,9 @@ static ssize_t show_dock_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->rfkill_supported & 0x200)) + if (!(fujitsu_laptop->flags_supported & 0x200)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->rfkill_state & 0x200) + if (fujitsu_laptop->flags_state & 0x200) return sprintf(buf, "docked\n"); else return sprintf(buf, "undocked\n"); @@ -591,9 +591,9 @@ static ssize_t show_radios_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->rfkill_supported & 0x20)) + if (!(fujitsu_laptop->flags_supported & 0x20)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->rfkill_state & 0x20) + if (fujitsu_laptop->flags_state & 0x20) return sprintf(buf, "on\n"); else return sprintf(buf, "killed\n"); @@ -920,17 +920,17 @@ static int acpi_fujitsu_laptop_add(struct acpi_device *device) ; /* No action, result is discarded */ vdbg_printk(FUJLAPTOP_DBG_INFO, "Discarded %i ringbuffer entries\n", i); - fujitsu_laptop->rfkill_supported = - call_fext_func(FUNC_RFKILL, 0x0, 0x0, 0x0); + fujitsu_laptop->flags_supported = + call_fext_func(FUNC_FLAGS, 0x0, 0x0, 0x0); /* Make sure our bitmask of supported functions is cleared if the RFKILL function block is not implemented, like on the S7020. */ - if (fujitsu_laptop->rfkill_supported == UNSUPPORTED_CMD) - fujitsu_laptop->rfkill_supported = 0; + if (fujitsu_laptop->flags_supported == UNSUPPORTED_CMD) + fujitsu_laptop->flags_supported = 0; - if (fujitsu_laptop->rfkill_supported) - fujitsu_laptop->rfkill_state = - call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); + if (fujitsu_laptop->flags_supported) + fujitsu_laptop->flags_state = + call_fext_func(FUNC_FLAGS, 0x4, 0x0, 0x0); /* Suspect this is a keymap of the application panel, print it */ pr_info("BTNI: [0x%x]\n", call_fext_func(FUNC_BUTTONS, 0x0, 0x0, 0x0)); @@ -1093,9 +1093,9 @@ static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) return; } - if (fujitsu_laptop->rfkill_supported) - fujitsu_laptop->rfkill_state = - call_fext_func(FUNC_RFKILL, 0x4, 0x0, 0x0); + if (fujitsu_laptop->flags_supported) + fujitsu_laptop->flags_state = + call_fext_func(FUNC_FLAGS, 0x4, 0x0, 0x0); i = 0; while ((irb = @@ -1135,10 +1135,10 @@ static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event) /* On some models (first seen on the Skylake-based Lifebook * E736/E746/E756), the touchpad toggle hotkey (Fn+F4) is - * handled in software; its state is queried using FUNC_RFKILL + * handled in software; its state is queried using FUNC_FLAGS */ - if ((fujitsu_laptop->rfkill_supported & BIT(26)) && - (call_fext_func(FUNC_RFKILL, 0x1, 0x0, 0x0) & BIT(26))) { + if ((fujitsu_laptop->flags_supported & BIT(26)) && + (call_fext_func(FUNC_FLAGS, 0x1, 0x0, 0x0) & BIT(26))) { keycode = KEY_TOUCHPAD_TOGGLE; input_report_key(input, keycode, 1); input_sync(input); -- cgit From d3dd4480f8a911198d85b3cdb97f22db6539d2d1 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:28 +0100 Subject: platform/x86: fujitsu-laptop: replace numeric values with constants MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Replace three repeating numeric values with constants to improve code clarity. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 55d696262301..deef40a03b6d 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -97,6 +97,11 @@ /* FUNC interface - responses */ #define UNSUPPORTED_CMD 0x80000000 +/* FUNC interface - status flags */ +#define FLAG_RFKILL 0x020 +#define FLAG_LID 0x100 +#define FLAG_DOCK 0x200 + #if IS_ENABLED(CONFIG_LEDS_CLASS) /* FUNC interface - LED control */ #define FUNC_LED_OFF 0x1 @@ -567,9 +572,9 @@ static ssize_t show_lid_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & 0x100)) + if (!(fujitsu_laptop->flags_supported & FLAG_LID)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & 0x100) + if (fujitsu_laptop->flags_state & FLAG_LID) return sprintf(buf, "open\n"); else return sprintf(buf, "closed\n"); @@ -579,9 +584,9 @@ static ssize_t show_dock_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & 0x200)) + if (!(fujitsu_laptop->flags_supported & FLAG_DOCK)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & 0x200) + if (fujitsu_laptop->flags_state & FLAG_DOCK) return sprintf(buf, "docked\n"); else return sprintf(buf, "undocked\n"); @@ -591,9 +596,9 @@ static ssize_t show_radios_state(struct device *dev, struct device_attribute *attr, char *buf) { - if (!(fujitsu_laptop->flags_supported & 0x20)) + if (!(fujitsu_laptop->flags_supported & FLAG_RFKILL)) return sprintf(buf, "unknown\n"); - if (fujitsu_laptop->flags_state & 0x20) + if (fujitsu_laptop->flags_state & FLAG_RFKILL) return sprintf(buf, "on\n"); else return sprintf(buf, "killed\n"); -- cgit From 8c590e339f37022dff209ef16cf699531df1a0ca Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:29 +0100 Subject: platform/x86: fujitsu-laptop: remove redundant forward declarations MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Both acpi_fujitsu_bl_notify() and acpi_fujitsu_laptop_notify() are defined before they are first used, so remove their forward declarations as they are redundant. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index deef40a03b6d..ba0c0c211251 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -178,8 +178,6 @@ struct fujitsu_laptop { static struct fujitsu_laptop *fujitsu_laptop; -static void acpi_fujitsu_laptop_notify(struct acpi_device *device, u32 event); - #if IS_ENABLED(CONFIG_LEDS_CLASS) static enum led_brightness logolamp_get(struct led_classdev *cdev); static int logolamp_set(struct led_classdev *cdev, @@ -227,8 +225,6 @@ static struct led_classdev eco_led = { static u32 dbg_level = 0x03; #endif -static void acpi_fujitsu_bl_notify(struct acpi_device *device, u32 event); - /* Fujitsu ACPI interface function */ static int call_fext_func(int cmd, int arg0, int arg1, int arg2) -- cgit From c1d1e8a051761fb808308dab32b9351e1d1fbb9b Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:30 +0100 Subject: platform/x86: fujitsu-laptop: simplify acpi_bus_register_driver() error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit A separate variable is not needed to handle error codes returned by acpi_bus_register_driver(). If the latter fails, just use the value it returned as the value returned by fujitsu_init(). Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index ba0c0c211251..a5478a011b90 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -1192,7 +1192,7 @@ MODULE_DEVICE_TABLE(acpi, fujitsu_ids); static int __init fujitsu_init(void) { - int ret, result, max_brightness; + int ret, max_brightness; if (acpi_disabled) return -ENODEV; @@ -1207,11 +1207,9 @@ static int __init fujitsu_init(void) fujitsu_bl->keycode5 = KEY_RFKILL; dmi_check_system(fujitsu_dmi_table); - result = acpi_bus_register_driver(&acpi_fujitsu_bl_driver); - if (result < 0) { - ret = -ENODEV; + ret = acpi_bus_register_driver(&acpi_fujitsu_bl_driver); + if (ret) goto fail_acpi; - } /* Register platform stuff */ @@ -1264,11 +1262,9 @@ static int __init fujitsu_init(void) goto fail_laptop; } - result = acpi_bus_register_driver(&acpi_fujitsu_laptop_driver); - if (result < 0) { - ret = -ENODEV; + ret = acpi_bus_register_driver(&acpi_fujitsu_laptop_driver); + if (ret) goto fail_laptop1; - } /* Sync backlight power status (needs FUJ02E3 device, hence deferred) */ if (acpi_video_get_backlight_type() == acpi_backlight_vendor) { -- cgit From 5296a73613814a15e54ebddc2843ec0f84951d60 Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:32 +0100 Subject: platform/x86: fujitsu-laptop: autodetect LCD interface on all models MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Presence of ACPI method SBL2 should be checked on all models rather than just the ones with predefined hotkey keycode overrides. Move most of dmi_check_cb_common() to acpi_fujitsu_bl_add(). Adjust indentation to make checkpatch happy. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index a5478a011b90..56804c4db33f 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -631,15 +631,6 @@ static struct platform_driver fujitsu_pf_driver = { static void __init dmi_check_cb_common(const struct dmi_system_id *id) { pr_info("Identified laptop model '%s'\n", id->ident); - if (use_alt_lcd_levels == -1) { - if (acpi_has_method(NULL, - "\\_SB.PCI0.LPCB.FJEX.SBL2")) - use_alt_lcd_levels = 1; - else - use_alt_lcd_levels = 0; - vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as " - "%i\n", use_alt_lcd_levels); - } } static int __init dmi_check_cb_s6410(const struct dmi_system_id *id) @@ -751,6 +742,15 @@ static int acpi_fujitsu_bl_add(struct acpi_device *device) pr_err("_INI Method failed\n"); } + if (use_alt_lcd_levels == -1) { + if (acpi_has_method(NULL, "\\_SB.PCI0.LPCB.FJEX.SBL2")) + use_alt_lcd_levels = 1; + else + use_alt_lcd_levels = 0; + vdbg_printk(FUJLAPTOP_DBG_TRACE, "auto-detected usealt as %i\n", + use_alt_lcd_levels); + } + /* do config (detect defaults) */ use_alt_lcd_levels = use_alt_lcd_levels == 1 ? 1 : 0; disable_brightness_adjust = disable_brightness_adjust == 1 ? 1 : 0; -- cgit From 5802d0bc3fe9f598f0ff3f5fd7fd8c5c935a1b5d Mon Sep 17 00:00:00 2001 From: Alan Jenkins Date: Wed, 8 Feb 2017 14:46:33 +0100 Subject: platform/x86: fujitsu-laptop: remove redundant MODULE_ALIAS entries MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MODULE_DEVICE_TABLE is all that is needed for fujitsu-laptop to be properly autoloaded based on presence of its associated ACPI devices, so remove redundant MODULE_ALIAS entries. Signed-off-by: Alan Jenkins [kempniu: rebase patch, rewrite commit message] Signed-off-by: Michał Kępień Signed-off-by: Andy Shevchenko Reviewed-by: Jonathan Woithe --- drivers/platform/x86/fujitsu-laptop.c | 4 ---- 1 file changed, 4 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c index 56804c4db33f..e12cc3504d48 100644 --- a/drivers/platform/x86/fujitsu-laptop.c +++ b/drivers/platform/x86/fujitsu-laptop.c @@ -1338,7 +1338,3 @@ MODULE_AUTHOR("Jonathan Woithe, Peter Gruber, Tony Vroon"); MODULE_DESCRIPTION("Fujitsu laptop extras support"); MODULE_VERSION(FUJITSU_DRIVER_VERSION); MODULE_LICENSE("GPL"); - -MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1D3:*:cvrS6410:*"); -MODULE_ALIAS("dmi:*:svnFUJITSUSIEMENS:*:pvr:rvnFUJITSU:rnFJNB1E6:*:cvrS6420:*"); -MODULE_ALIAS("dmi:*:svnFUJITSU:*:pvr:rvnFUJITSU:rnFJNB19C:*:cvrS7020:*"); -- cgit From 71050ae7bf83e4d71a859257d11adc5de517073e Mon Sep 17 00:00:00 2001 From: João Paulo Rechi Vita Date: Mon, 20 Feb 2017 14:50:22 -0500 Subject: platform/x86: asus-wmi: Detect quirk_no_rfkill from the DSDT MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Some Asus laptops that have an airplane-mode indicator LED, also have the WMI WLAN user bit set, and the following bits in their DSDT: Scope (_SB) { (...) Device (ATKD) { (...) Method (WMNB, 3, Serialized) { (...) If (LEqual (IIA0, 0x00010002)) { OWGD (IIA1) Return (One) } } } } So when asus-wmi uses ASUS_WMI_DEVID_WLAN_LED (0x00010002) to store the wlan state, it drives the airplane-mode indicator LED (through the call to OWGD) in an inverted fashion: the LED is ON when airplane mode is OFF (since wlan is ON), and vice-versa. This commit skips registering RFKill switches at all for these laptops, to allow the asus-wireless driver to drive the airplane mode LED correctly through the ASHS ACPI device. Relying on the presence of ASHS and ASUS_WMI_DSTS_USER_BIT avoids adding DMI-based quirks for at least 21 different laptops. Signed-off-by: João Paulo Rechi Vita Signed-off-by: Andy Shevchenko --- drivers/platform/x86/asus-wmi.c | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 43cb680adbb4..8499d3ae4257 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -159,6 +159,8 @@ MODULE_LICENSE("GPL"); #define USB_INTEL_XUSB2PR 0xD0 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31 +static const char * const ashs_ids[] = { "ATK4001", "ATK4002", NULL }; + struct bios_args { u32 arg0; u32 arg1; @@ -2051,6 +2053,16 @@ static int asus_wmi_fan_init(struct asus_wmi *asus) return 0; } +static bool ashs_present(void) +{ + int i = 0; + while (ashs_ids[i]) { + if (acpi_dev_found(ashs_ids[i++])) + return true; + } + return false; +} + /* * WMI Driver */ @@ -2095,6 +2107,13 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_leds; + asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); + if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) + asus->driver->wlan_ctrl_by_user = 1; + + if (asus->driver->wlan_ctrl_by_user && ashs_present()) + asus->driver->quirks->no_rfkill = 1; + if (!asus->driver->quirks->no_rfkill) { err = asus_wmi_rfkill_init(asus); if (err) @@ -2134,10 +2153,6 @@ static int asus_wmi_add(struct platform_device *pdev) if (err) goto fail_debugfs; - asus_wmi_get_devstate(asus, ASUS_WMI_DEVID_WLAN, &result); - if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) - asus->driver->wlan_ctrl_by_user = 1; - return 0; fail_debugfs: -- cgit From d825adb48cf9bf9e3f5cb1d927e2827f8c2abee4 Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Sun, 26 Feb 2017 16:15:21 +0900 Subject: xenbus: Remove duplicate inclusion of linux/init.h This patch remove duplicate inclusion of linux/init.h in xenbus_dev_frontend.c. Confirm successfully compile after remove the line. Signed-off-by: Masanari Iida Reviewed-by: Juergen Gross --- drivers/xen/xenbus/xenbus_dev_frontend.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/xen/xenbus/xenbus_dev_frontend.c b/drivers/xen/xenbus/xenbus_dev_frontend.c index 4d343eed08f5..1f4733b80c87 100644 --- a/drivers/xen/xenbus/xenbus_dev_frontend.c +++ b/drivers/xen/xenbus/xenbus_dev_frontend.c @@ -55,7 +55,6 @@ #include #include #include -#include #include #include -- cgit From 0aa5277c3a6dbe9d5991c490ef23fe900254d931 Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 28 Feb 2017 15:39:25 +0800 Subject: drm/i915/gvt: have more registers with F_CMD_ACCESS flags set those registers are render registers, should have F_CMD_ACCESS flag set v4: rebase to lastest code base v3: per zhenyu's comments, move newly added registers to a separate patch v2: per Kevin's comments, move newly added registers to the tails of lists. Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 223 ++++++++++++++++++++---------------- 1 file changed, 123 insertions(+), 100 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 57b4d538f370..37956eee342c 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -1523,6 +1523,9 @@ static int ring_reset_ctl_write(struct intel_vgpu *vgpu, #define MMIO_GM(reg, d, r, w) \ MMIO_F(reg, 4, F_GMADR, 0xFFFFF000, 0, d, r, w) +#define MMIO_GM_RDR(reg, d, r, w) \ + MMIO_F(reg, 4, F_GMADR | F_CMD_ACCESS, 0xFFFFF000, 0, d, r, w) + #define MMIO_RO(reg, d, f, rm, r, w) \ MMIO_F(reg, 4, F_RO | f, 0, rm, d, r, w) @@ -1542,6 +1545,9 @@ static int ring_reset_ctl_write(struct intel_vgpu *vgpu, #define MMIO_RING_GM(prefix, d, r, w) \ MMIO_RING_F(prefix, 4, F_GMADR, 0xFFFF0000, 0, d, r, w) +#define MMIO_RING_GM_RDR(prefix, d, r, w) \ + MMIO_RING_F(prefix, 4, F_GMADR | F_CMD_ACCESS, 0xFFFF0000, 0, d, r, w) + #define MMIO_RING_RO(prefix, d, f, rm, r, w) \ MMIO_RING_F(prefix, 4, F_RO | f, 0, rm, d, r, w) @@ -1550,45 +1556,48 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) struct drm_i915_private *dev_priv = gvt->dev_priv; int ret; - MMIO_RING_DFH(RING_IMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler); + MMIO_RING_DFH(RING_IMR, D_ALL, F_CMD_ACCESS, NULL, + intel_vgpu_reg_imr_handler); MMIO_DFH(SDEIMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler); MMIO_DFH(SDEIER, D_ALL, 0, NULL, intel_vgpu_reg_ier_handler); MMIO_DFH(SDEIIR, D_ALL, 0, NULL, intel_vgpu_reg_iir_handler); MMIO_D(SDEISR, D_ALL); - MMIO_RING_D(RING_HWSTAM, D_ALL); + MMIO_RING_DFH(RING_HWSTAM, D_ALL, F_CMD_ACCESS, NULL, NULL); - MMIO_GM(RENDER_HWS_PGA_GEN7, D_ALL, NULL, NULL); - MMIO_GM(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL); - MMIO_GM(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL); - MMIO_GM(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(RENDER_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL); #define RING_REG(base) (base + 0x28) - MMIO_RING_D(RING_REG, D_ALL); + MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x134) - MMIO_RING_D(RING_REG, D_ALL); + MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL); #undef RING_REG - MMIO_GM(0x2148, D_ALL, NULL, NULL); - MMIO_GM(CCID, D_ALL, NULL, NULL); - MMIO_GM(0x12198, D_ALL, NULL, NULL); + MMIO_GM_RDR(0x2148, D_ALL, NULL, NULL); + MMIO_GM_RDR(CCID, D_ALL, NULL, NULL); + MMIO_GM_RDR(0x12198, D_ALL, NULL, NULL); MMIO_D(GEN7_CXT_SIZE, D_ALL); - MMIO_RING_D(RING_TAIL, D_ALL); - MMIO_RING_D(RING_HEAD, D_ALL); - MMIO_RING_D(RING_CTL, D_ALL); - MMIO_RING_D(RING_ACTHD, D_ALL); - MMIO_RING_GM(RING_START, D_ALL, NULL, NULL); + MMIO_RING_DFH(RING_TAIL, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_HEAD, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_CTL, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_ACTHD, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_GM_RDR(RING_START, D_ALL, NULL, NULL); /* RING MODE */ #define RING_REG(base) (base + 0x29c) - MMIO_RING_DFH(RING_REG, D_ALL, F_MODE_MASK, NULL, ring_mode_mmio_write); + MMIO_RING_DFH(RING_REG, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, + ring_mode_mmio_write); #undef RING_REG - MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS, @@ -1596,28 +1605,30 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS, ring_timestamp_mmio_read, NULL); - MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); MMIO_DFH(CACHE_MODE_1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(0x2124, D_ALL, F_MODE_MASK, NULL, NULL); - - MMIO_DFH(0x20dc, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(0x2088, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(0x20e4, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_DFH(0x2470, D_ALL, F_MODE_MASK, NULL, NULL); - MMIO_D(GAM_ECOCHK, D_ALL); - MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2124, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(0x20dc, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2088, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x20e4, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2470, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GAM_ECOCHK, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); MMIO_DFH(COMMON_SLICE_CHICKEN2, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_D(0x9030, D_ALL); - MMIO_D(0x20a0, D_ALL); - MMIO_D(0x2420, D_ALL); - MMIO_D(0x2430, D_ALL); - MMIO_D(0x2434, D_ALL); - MMIO_D(0x2438, D_ALL); - MMIO_D(0x243c, D_ALL); - MMIO_DFH(0x7018, D_ALL, F_MODE_MASK, NULL, NULL); + MMIO_DFH(0x9030, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x20a0, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2420, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2430, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2434, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2438, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x243c, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x7018, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(HALF_SLICE_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(GEN7_HALF_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); @@ -2148,8 +2159,8 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_D(FORCEWAKE_ACK, D_ALL); MMIO_D(GEN6_GT_CORE_STATUS, D_ALL); MMIO_D(GEN6_GT_THREAD_STATUS_REG, D_ALL); - MMIO_D(GTFIFODBG, D_ALL); - MMIO_D(GTFIFOCTL, D_ALL); + MMIO_DFH(GTFIFODBG, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GTFIFOCTL, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_DH(FORCEWAKE_MT, D_PRE_SKL, NULL, mul_force_wake_write); MMIO_DH(FORCEWAKE_ACK_HSW, D_HSW | D_BDW, NULL, NULL); MMIO_D(ECOBUS, D_ALL); @@ -2291,29 +2302,29 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_DFH(0x12178, D_ALL, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x1217c, D_ALL, F_CMD_ACCESS, NULL, NULL); - MMIO_F(0x2290, 8, 0, 0, 0, D_HSW_PLUS, NULL, NULL); - MMIO_D(GEN7_OACONTROL, D_HSW); + MMIO_F(0x2290, 8, F_CMD_ACCESS, 0, 0, D_HSW_PLUS, NULL, NULL); + MMIO_DFH(GEN7_OACONTROL, D_HSW, F_CMD_ACCESS, NULL, NULL); MMIO_D(0x2b00, D_BDW_PLUS); MMIO_D(0x2360, D_BDW_PLUS); - MMIO_F(0x5200, 32, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(0x5240, 32, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(0x5280, 16, 0, 0, 0, D_ALL, NULL, NULL); + MMIO_F(0x5200, 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(0x5240, 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(0x5280, 16, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); MMIO_DFH(0x1c17c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0x1c178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_D(BCS_SWCTRL, D_ALL); - - MMIO_F(HS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(DS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(IA_VERTICES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(IA_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(VS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(GS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(GS_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(CL_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(CL_PRIMITIVES_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(PS_INVOCATION_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); - MMIO_F(PS_DEPTH_COUNT, 8, 0, 0, 0, D_ALL, NULL, NULL); + MMIO_DFH(BCS_SWCTRL, D_ALL, F_CMD_ACCESS, NULL, NULL); + + MMIO_F(HS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(DS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(IA_VERTICES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(IA_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(VS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(GS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(GS_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(CL_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(CL_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(PS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(PS_DEPTH_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); MMIO_DH(0x4260, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); MMIO_DH(0x4264, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); MMIO_DH(0x4268, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); @@ -2329,7 +2340,7 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) struct drm_i915_private *dev_priv = gvt->dev_priv; int ret; - MMIO_DH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, + MMIO_DFH(RING_IMR(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, NULL, intel_vgpu_reg_imr_handler); MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); @@ -2394,24 +2405,31 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL, intel_vgpu_reg_master_irq_handler); - MMIO_D(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_D(0x1c134, D_BDW_PLUS); - - MMIO_D(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_D(RING_HEAD(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_GM(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL); - MMIO_D(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_D(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_D(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS); - MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK, NULL, ring_mode_mmio_write); - MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK, - NULL, NULL); - MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_MODE_MASK, - NULL, NULL); + MMIO_DFH(RING_HWSTAM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x1c134, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(RING_TAIL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(RING_HEAD(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_CMD_ACCESS, NULL, NULL); + MMIO_GM_RDR(RING_START(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL); + MMIO_DFH(RING_CTL(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(RING_ACTHD(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(RING_ACTHD_UDW(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x1c29c, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, + ring_mode_mmio_write); + MMIO_DFH(RING_MI_MODE(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(RING_INSTPM(GEN8_BSD2_RING_BASE), D_BDW_PLUS, + F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(RING_TIMESTAMP(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, ring_timestamp_mmio_read, NULL); - MMIO_RING_D(RING_ACTHD_UDW, D_BDW_PLUS); + MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); #define RING_REG(base) (base + 0xd0) MMIO_RING_F(RING_REG, 4, F_RO, 0, @@ -2428,13 +2446,16 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) #undef RING_REG #define RING_REG(base) (base + 0x234) - MMIO_RING_F(RING_REG, 8, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL); - MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO, 0, ~0LL, D_BDW_PLUS, NULL, NULL); + MMIO_RING_F(RING_REG, 8, F_RO | F_CMD_ACCESS, 0, ~0, D_BDW_PLUS, + NULL, NULL); + MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 4, F_RO | F_CMD_ACCESS, 0, + ~0LL, D_BDW_PLUS, NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x244) - MMIO_RING_D(RING_REG, D_BDW_PLUS); - MMIO_D(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS); + MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(RING_REG(GEN8_BSD2_RING_BASE), D_BDW_PLUS, F_CMD_ACCESS, + NULL, NULL); #undef RING_REG #define RING_REG(base) (base + 0x370) @@ -2468,8 +2489,8 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_F(RING_REG(GEN8_BSD2_RING_BASE), 32, 0, 0, 0, D_BDW_PLUS, NULL, NULL); #undef RING_REG - MMIO_RING_GM(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL); - MMIO_GM(0x1c080, D_BDW_PLUS, NULL, NULL); + MMIO_RING_GM_RDR(RING_HWS_PGA, D_BDW_PLUS, NULL, NULL); + MMIO_GM_RDR(RING_HWS_PGA(GEN8_BSD2_RING_BASE), D_BDW_PLUS, NULL, NULL); MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); @@ -2490,15 +2511,17 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_D(GEN8_EU_DISABLE2, D_BDW_PLUS); MMIO_D(0xfdc, D_BDW_PLUS); - MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_D(GEN7_ROW_CHICKEN2, D_BDW_PLUS); - MMIO_D(GEN8_UCGCTL6, D_BDW_PLUS); + MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(GEN7_ROW_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(GEN8_UCGCTL6, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_D(0xb1f0, D_BDW); - MMIO_D(0xb1c0, D_BDW); + MMIO_DFH(0xb1f0, D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xb1c0, D_BDW, F_CMD_ACCESS, NULL, NULL); MMIO_DFH(GEN8_L3SQCREG4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); - MMIO_D(0xb100, D_BDW); - MMIO_D(0xb10c, D_BDW); + MMIO_DFH(0xb100, D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xb10c, D_BDW, F_CMD_ACCESS, NULL, NULL); MMIO_D(0xb110, D_BDW); MMIO_F(0x24d0, 48, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, @@ -2508,10 +2531,10 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_D(0x44484, D_BDW_PLUS); MMIO_D(0x4448c, D_BDW_PLUS); - MMIO_D(0x83a4, D_BDW); + MMIO_DFH(0x83a4, D_BDW, F_CMD_ACCESS, NULL, NULL); MMIO_D(GEN8_L3_LRA_1_GPGPU, D_BDW_PLUS); - MMIO_D(0x8430, D_BDW); + MMIO_DFH(0x8430, D_BDW, F_CMD_ACCESS, NULL, NULL); MMIO_D(0x110000, D_BDW_PLUS); @@ -2523,9 +2546,9 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DFH(0xe194, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(0xe188, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); MMIO_DFH(HALF_SLICE_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_DFH(0x2580, D_BDW_PLUS, F_MODE_MASK, NULL, NULL); + MMIO_DFH(0x2580, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); - MMIO_D(0x2248, D_BDW); + MMIO_DFH(0x2248, D_BDW, F_CMD_ACCESS, NULL, NULL); return 0; } @@ -2707,15 +2730,15 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(0xd08, D_SKL); MMIO_D(0x20e0, D_SKL); - MMIO_D(0x20ec, D_SKL); + MMIO_DFH(0x20ec, D_SKL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); /* TRTT */ - MMIO_D(0x4de0, D_SKL); - MMIO_D(0x4de4, D_SKL); - MMIO_D(0x4de8, D_SKL); - MMIO_D(0x4dec, D_SKL); - MMIO_D(0x4df0, D_SKL); - MMIO_DH(0x4df4, D_SKL, NULL, gen9_trtte_write); + MMIO_DFH(0x4de0, D_SKL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x4de4, D_SKL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x4de8, D_SKL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x4dec, D_SKL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x4df0, D_SKL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x4df4, D_SKL, F_CMD_ACCESS, NULL, gen9_trtte_write); MMIO_DH(0x4dfc, D_SKL, NULL, gen9_trtt_chicken_write); MMIO_D(0x45008, D_SKL); @@ -2739,7 +2762,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(0x65f08, D_SKL); MMIO_D(0x320f0, D_SKL); - MMIO_D(_REG_VCS2_EXCC, D_SKL); + MMIO_DFH(_REG_VCS2_EXCC, D_SKL, F_CMD_ACCESS, NULL, NULL); MMIO_D(0x70034, D_SKL); MMIO_D(0x71034, D_SKL); MMIO_D(0x72034, D_SKL); @@ -2752,7 +2775,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(_PLANE_KEYMSK_1(PIPE_C), D_SKL); MMIO_D(0x44500, D_SKL); - MMIO_D(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS); + MMIO_DFH(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); return 0; } -- cgit From 9112caafdf01439a6e43f4d8c09ceed7dc613d4a Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 28 Feb 2017 15:40:10 +0800 Subject: drm/i915/gvt: add more registers into handlers list those registers are render registers with F_CMD_ACCESS flag set Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 37956eee342c..ef17c38e00c4 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -2332,6 +2332,17 @@ static int init_generic_mmio_info(struct intel_gvt *gvt) MMIO_DH(0x4270, D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); MMIO_DFH(0x4094, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(ARB_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_RING_GM_RDR(RING_BBADDR, D_ALL, NULL, NULL); + MMIO_DFH(0x2220, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x12220, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x22220, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_SYNC_1, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_SYNC_0, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x22178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x1a178, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x1a17c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0x2217c, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); return 0; } @@ -2550,6 +2561,15 @@ static int init_broadwell_mmio_info(struct intel_gvt *gvt) MMIO_DFH(0x2248, D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe220, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe230, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe240, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe260, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe270, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe280, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe2a0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe2b0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(0xe2c0, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); return 0; } @@ -2776,6 +2796,8 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_D(0x44500, D_SKL); MMIO_DFH(GEN9_CSFE_CHICKEN1_RCS, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); return 0; } -- cgit From 1f58af304cce9e4a25b62b3619e69c586203c8ca Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Tue, 28 Feb 2017 15:41:03 +0800 Subject: drm/i915/gvt: fix an error for one register register 0x20e0 should be mode register v2: rebased to latest code base Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index ef17c38e00c4..548aedfbd402 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -2749,7 +2749,7 @@ static int init_skl_mmio_info(struct intel_gvt *gvt) MMIO_F(0xb020, 0x80, F_CMD_ACCESS, 0, 0, D_SKL, NULL, NULL); MMIO_D(0xd08, D_SKL); - MMIO_D(0x20e0, D_SKL); + MMIO_DFH(0x20e0, D_SKL, F_MODE_MASK, NULL, NULL); MMIO_DFH(0x20ec, D_SKL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); /* TRTT */ -- cgit From 858b0f571d30916bd69c45922045f24f26d6bfc9 Mon Sep 17 00:00:00 2001 From: Bing Niu Date: Tue, 28 Feb 2017 11:39:48 -0500 Subject: drm/i915/gvt: set SFUSE_STRAP properly for vitual monitor detection update the correct virtual montior connection status to vreg v2: address yulei's comment on commit message Signed-off-by: Bing Niu Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/display.c | 14 +++++++++++--- 1 file changed, 11 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/display.c b/drivers/gpu/drm/i915/gvt/display.c index 43e02e038375..5419ae6ec633 100644 --- a/drivers/gpu/drm/i915/gvt/display.c +++ b/drivers/gpu/drm/i915/gvt/display.c @@ -176,14 +176,20 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu) vgpu_vreg(vgpu, SDEISR) &= ~(SDE_PORTA_HOTPLUG_SPT | SDE_PORTE_HOTPLUG_SPT); - if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) + if (intel_vgpu_has_monitor_on_port(vgpu, PORT_B)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTB_HOTPLUG_CPT; + vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIB_DETECTED; + } - if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) + if (intel_vgpu_has_monitor_on_port(vgpu, PORT_C)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTC_HOTPLUG_CPT; + vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDIC_DETECTED; + } - if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) + if (intel_vgpu_has_monitor_on_port(vgpu, PORT_D)) { vgpu_vreg(vgpu, SDEISR) |= SDE_PORTD_HOTPLUG_CPT; + vgpu_vreg(vgpu, SFUSE_STRAP) |= SFUSE_STRAP_DDID_DETECTED; + } if (IS_SKYLAKE(dev_priv) && intel_vgpu_has_monitor_on_port(vgpu, PORT_E)) { @@ -196,6 +202,8 @@ static void emulate_monitor_status_change(struct intel_vgpu *vgpu) GEN8_PORT_DP_A_HOTPLUG; else vgpu_vreg(vgpu, SDEISR) |= SDE_PORTA_HOTPLUG_SPT; + + vgpu_vreg(vgpu, DDI_BUF_CTL(PORT_A)) |= DDI_INIT_DISPLAY_DETECTED; } } -- cgit From d1a9ccc4b1374a5a7762031fd8e4e398c68549e6 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Tue, 28 Feb 2017 11:02:48 +0000 Subject: scsi: qedi: fix missing return error code check on call to qedi_setup_int The call to qedi_setup_int is not updating the return code rc yet rc is being checked for an error. Fix this by assigning rc to the return code from the call to qedi_setup_int. Signed-off-by: Colin Ian King Acked-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 5eda21d903e9..8e3d92807cb8 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1805,7 +1805,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) */ qedi_ops->common->update_pf_params(qedi->cdev, &qedi->pf_params); - qedi_setup_int(qedi); + rc = qedi_setup_int(qedi); if (rc) goto stop_iscsi_func; -- cgit From 6f8830f5bbab16e54f261de187f3df4644a5b977 Mon Sep 17 00:00:00 2001 From: Chris Leech Date: Mon, 27 Feb 2017 16:58:36 -0800 Subject: scsi: libiscsi: add lock around task lists to fix list corruption regression There's a rather long standing regression from the commit "libiscsi: Reduce locking contention in fast path" Depending on iSCSI target behavior, it's possible to hit the case in iscsi_complete_task where the task is still on a pending list (!list_empty(&task->running)). When that happens the task is removed from the list while holding the session back_lock, but other task list modification occur under the frwd_lock. That leads to linked list corruption and eventually a panicked system. Rather than back out the session lock split entirely, in order to try and keep some of the performance gains this patch adds another lock to maintain the task lists integrity. Major enterprise supported kernels have been backing out the lock split for while now, thanks to the efforts at IBM where a lab setup has the most reliable reproducer I've seen on this issue. This patch has been tested there successfully. Signed-off-by: Chris Leech Fixes: 659743b02c41 ("[SCSI] libiscsi: Reduce locking contention in fast path") Reported-by: Prashantha Subbarao Reviewed-by: Guilherme G. Piccoli Cc: # v3.15+ Signed-off-by: Martin K. Petersen --- drivers/scsi/libiscsi.c | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 834d1212b6d5..3fca34a675af 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -560,8 +560,12 @@ static void iscsi_complete_task(struct iscsi_task *task, int state) WARN_ON_ONCE(task->state == ISCSI_TASK_FREE); task->state = state; - if (!list_empty(&task->running)) + spin_lock_bh(&conn->taskqueuelock); + if (!list_empty(&task->running)) { + pr_debug_once("%s while task on list", __func__); list_del_init(&task->running); + } + spin_unlock_bh(&conn->taskqueuelock); if (conn->task == task) conn->task = NULL; @@ -783,7 +787,9 @@ __iscsi_conn_send_pdu(struct iscsi_conn *conn, struct iscsi_hdr *hdr, if (session->tt->xmit_task(task)) goto free_task; } else { + spin_lock_bh(&conn->taskqueuelock); list_add_tail(&task->running, &conn->mgmtqueue); + spin_unlock_bh(&conn->taskqueuelock); iscsi_conn_queue_work(conn); } @@ -1474,8 +1480,10 @@ void iscsi_requeue_task(struct iscsi_task *task) * this may be on the requeue list already if the xmit_task callout * is handling the r2ts while we are adding new ones */ + spin_lock_bh(&conn->taskqueuelock); if (list_empty(&task->running)) list_add_tail(&task->running, &conn->requeue); + spin_unlock_bh(&conn->taskqueuelock); iscsi_conn_queue_work(conn); } EXPORT_SYMBOL_GPL(iscsi_requeue_task); @@ -1512,22 +1520,26 @@ static int iscsi_data_xmit(struct iscsi_conn *conn) * only have one nop-out as a ping from us and targets should not * overflow us with nop-ins */ + spin_lock_bh(&conn->taskqueuelock); check_mgmt: while (!list_empty(&conn->mgmtqueue)) { conn->task = list_entry(conn->mgmtqueue.next, struct iscsi_task, running); list_del_init(&conn->task->running); + spin_unlock_bh(&conn->taskqueuelock); if (iscsi_prep_mgmt_task(conn, conn->task)) { /* regular RX path uses back_lock */ spin_lock_bh(&conn->session->back_lock); __iscsi_put_task(conn->task); spin_unlock_bh(&conn->session->back_lock); conn->task = NULL; + spin_lock_bh(&conn->taskqueuelock); continue; } rc = iscsi_xmit_task(conn); if (rc) goto done; + spin_lock_bh(&conn->taskqueuelock); } /* process pending command queue */ @@ -1535,19 +1547,24 @@ check_mgmt: conn->task = list_entry(conn->cmdqueue.next, struct iscsi_task, running); list_del_init(&conn->task->running); + spin_unlock_bh(&conn->taskqueuelock); if (conn->session->state == ISCSI_STATE_LOGGING_OUT) { fail_scsi_task(conn->task, DID_IMM_RETRY); + spin_lock_bh(&conn->taskqueuelock); continue; } rc = iscsi_prep_scsi_cmd_pdu(conn->task); if (rc) { if (rc == -ENOMEM || rc == -EACCES) { + spin_lock_bh(&conn->taskqueuelock); list_add_tail(&conn->task->running, &conn->cmdqueue); conn->task = NULL; + spin_unlock_bh(&conn->taskqueuelock); goto done; } else fail_scsi_task(conn->task, DID_ABORT); + spin_lock_bh(&conn->taskqueuelock); continue; } rc = iscsi_xmit_task(conn); @@ -1558,6 +1575,7 @@ check_mgmt: * we need to check the mgmt queue for nops that need to * be sent to aviod starvation */ + spin_lock_bh(&conn->taskqueuelock); if (!list_empty(&conn->mgmtqueue)) goto check_mgmt; } @@ -1577,12 +1595,15 @@ check_mgmt: conn->task = task; list_del_init(&conn->task->running); conn->task->state = ISCSI_TASK_RUNNING; + spin_unlock_bh(&conn->taskqueuelock); rc = iscsi_xmit_task(conn); if (rc) goto done; + spin_lock_bh(&conn->taskqueuelock); if (!list_empty(&conn->mgmtqueue)) goto check_mgmt; } + spin_unlock_bh(&conn->taskqueuelock); spin_unlock_bh(&conn->session->frwd_lock); return -ENODATA; @@ -1738,7 +1759,9 @@ int iscsi_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc) goto prepd_reject; } } else { + spin_lock_bh(&conn->taskqueuelock); list_add_tail(&task->running, &conn->cmdqueue); + spin_unlock_bh(&conn->taskqueuelock); iscsi_conn_queue_work(conn); } @@ -2896,6 +2919,7 @@ iscsi_conn_setup(struct iscsi_cls_session *cls_session, int dd_size, INIT_LIST_HEAD(&conn->mgmtqueue); INIT_LIST_HEAD(&conn->cmdqueue); INIT_LIST_HEAD(&conn->requeue); + spin_lock_init(&conn->taskqueuelock); INIT_WORK(&conn->xmitwork, iscsi_xmitworker); /* allocate login_task used for the login/text sequences */ -- cgit From b6b6fbc8310e1b12b05717da9df6953b138f812b Mon Sep 17 00:00:00 2001 From: Chuanxiao Dong Date: Wed, 1 Mar 2017 14:34:52 +0800 Subject: drm/i915/gvt: use pfn_valid for better checking Before get the page from pfn, use pfn_valid to check if pfn is able to translate to page structure. Signed-off-by: Chuanxiao Dong Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/kvmgt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 182914c22ac5..241354890603 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -96,10 +96,10 @@ static int gvt_dma_map_iova(struct intel_vgpu *vgpu, kvm_pfn_t pfn, struct device *dev = &vgpu->gvt->dev_priv->drm.pdev->dev; dma_addr_t daddr; - page = pfn_to_page(pfn); - if (is_error_page(page)) + if (unlikely(!pfn_valid(pfn))) return -EFAULT; + page = pfn_to_page(pfn); daddr = dma_map_page(dev, page, 0, PAGE_SIZE, PCI_DMA_BIDIRECTIONAL); if (dma_mapping_error(dev, daddr)) -- cgit From b28ace12661fbcfd90959c1e84ff5a85113a82a1 Mon Sep 17 00:00:00 2001 From: Franck Demathieu Date: Thu, 23 Feb 2017 10:48:55 +0100 Subject: irqchip/crossbar: Fix incorrect type of local variables The max and entry variables are unsigned according to the dt-bindings. Fix following 3 sparse issues (-Wtypesign): drivers/irqchip/irq-crossbar.c:222:52: warning: incorrect type in argument 3 (different signedness) drivers/irqchip/irq-crossbar.c:222:52: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:222:52: got int * drivers/irqchip/irq-crossbar.c:245:56: warning: incorrect type in argument 4 (different signedness) drivers/irqchip/irq-crossbar.c:245:56: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:245:56: got int * drivers/irqchip/irq-crossbar.c:263:56: warning: incorrect type in argument 4 (different signedness) drivers/irqchip/irq-crossbar.c:263:56: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:263:56: got int * Signed-off-by: Franck Demathieu Cc: marc.zyngier@arm.com Cc: jason@lakedaemon.net Link: http://lkml.kernel.org/r/20170223094855.6546-1-fdemathieu@gmail.com Signed-off-by: Thomas Gleixner --- drivers/irqchip/irq-crossbar.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c index 1eef56a89b1f..05bbf171df37 100644 --- a/drivers/irqchip/irq-crossbar.c +++ b/drivers/irqchip/irq-crossbar.c @@ -198,7 +198,8 @@ static const struct irq_domain_ops crossbar_domain_ops = { static int __init crossbar_of_init(struct device_node *node) { - int i, size, max = 0, reserved = 0, entry; + int i, size, reserved = 0; + u32 max = 0, entry; const __be32 *irqsr; int ret = -ENOMEM; -- cgit From f2ae5da726172fcf82f7be801489dd585f6a38eb Mon Sep 17 00:00:00 2001 From: Rui Wang Date: Tue, 28 Feb 2017 21:34:29 +0800 Subject: x86/ioapic: Split IOAPIC hot-removal into two steps The hot removal of IOAPIC is handling PCI and ACPI removal in one go. That only works when the PCI drivers released the interrupt resources, but breaks when a IOAPIC interrupt is still associated to a PCI device. The new pcibios_release_device() callback allows to solve that problem by splitting the removal into two steps: 1) PCI removal: Release all PCI resources including eventually not yet released IOAPIC interrupts via the new pcibios_release_device() callback. 2) ACPI removal: After release of all PCI resources the ACPI resources can be released without issue. [ tglx: Rewrote changelog ] Signed-off-by: Rui Wang Cc: tony.luck@intel.com Cc: linux-pci@vger.kernel.org Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: fengguang.wu@intel.com Cc: helgaas@kernel.org Cc: kbuild-all@01.org Cc: bhelgaas@google.com Link: http://lkml.kernel.org/r/1488288869-31290-3-git-send-email-rui.y.wang@intel.com Signed-off-by: Thomas Gleixner --- drivers/acpi/internal.h | 2 ++ drivers/acpi/ioapic.c | 22 ++++++++++++++++------ drivers/acpi/pci_root.c | 4 ++-- 3 files changed, 20 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 219b90bc0922..f15900132912 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -41,8 +41,10 @@ void acpi_gpe_apply_masked_gpes(void); void acpi_container_init(void); void acpi_memory_hotplug_init(void); #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC +void pci_ioapic_remove(struct acpi_pci_root *root); int acpi_ioapic_remove(struct acpi_pci_root *root); #else +static inline void pci_ioapic_remove(struct acpi_pci_root *root) { return; } static inline int acpi_ioapic_remove(struct acpi_pci_root *root) { return 0; } #endif #ifdef CONFIG_ACPI_DOCK diff --git a/drivers/acpi/ioapic.c b/drivers/acpi/ioapic.c index 6d7ce6e12aaa..1120dfd625b8 100644 --- a/drivers/acpi/ioapic.c +++ b/drivers/acpi/ioapic.c @@ -206,24 +206,34 @@ int acpi_ioapic_add(acpi_handle root_handle) return ACPI_SUCCESS(status) && ACPI_SUCCESS(retval) ? 0 : -ENODEV; } -int acpi_ioapic_remove(struct acpi_pci_root *root) +void pci_ioapic_remove(struct acpi_pci_root *root) { - int retval = 0; struct acpi_pci_ioapic *ioapic, *tmp; mutex_lock(&ioapic_list_lock); list_for_each_entry_safe(ioapic, tmp, &ioapic_list, list) { if (root->device->handle != ioapic->root_handle) continue; - - if (acpi_unregister_ioapic(ioapic->handle, ioapic->gsi_base)) - retval = -EBUSY; - if (ioapic->pdev) { pci_release_region(ioapic->pdev, 0); pci_disable_device(ioapic->pdev); pci_dev_put(ioapic->pdev); } + } + mutex_unlock(&ioapic_list_lock); +} + +int acpi_ioapic_remove(struct acpi_pci_root *root) +{ + int retval = 0; + struct acpi_pci_ioapic *ioapic, *tmp; + + mutex_lock(&ioapic_list_lock); + list_for_each_entry_safe(ioapic, tmp, &ioapic_list, list) { + if (root->device->handle != ioapic->root_handle) + continue; + if (acpi_unregister_ioapic(ioapic->handle, ioapic->gsi_base)) + retval = -EBUSY; if (ioapic->res.flags && ioapic->res.parent) release_resource(&ioapic->res); list_del(&ioapic->list); diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index bf601d4df8cf..919be0aa2578 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -648,12 +648,12 @@ static void acpi_pci_root_remove(struct acpi_device *device) pci_stop_root_bus(root->bus); - WARN_ON(acpi_ioapic_remove(root)); - + pci_ioapic_remove(root); device_set_run_wake(root->bus->bridge, false); pci_acpi_remove_bus_pm_notifier(device); pci_remove_root_bus(root->bus); + WARN_ON(acpi_ioapic_remove(root)); dmar_device_remove(device->handle); -- cgit From a4b0e8a4e92b1baa860e744847fbdb84a50a5071 Mon Sep 17 00:00:00 2001 From: "Potomski, MichalX" Date: Thu, 23 Feb 2017 09:05:30 +0000 Subject: scsi: ufs: Factor out ufshcd_read_desc_param Since in UFS 2.1 specification some of the descriptor lengths differs from 2.0 specification and some devices, which are reporting spec version 2.0 have different descriptor lengths we can not rely on hardcoded values taken from 2.0 specification. This patch introduces reading these lengths per each device from descriptor headers at probe time to ensure their correctness. Signed-off-by: Michal' Potomski Reviewed-by: Subhash Jadavani Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs.h | 22 ++--- drivers/scsi/ufs/ufshcd.c | 231 ++++++++++++++++++++++++++++++++++------------ drivers/scsi/ufs/ufshcd.h | 15 +++ 3 files changed, 196 insertions(+), 72 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/ufs/ufs.h b/drivers/scsi/ufs/ufs.h index 318e4a1f76c9..54deeb754db5 100644 --- a/drivers/scsi/ufs/ufs.h +++ b/drivers/scsi/ufs/ufs.h @@ -146,7 +146,7 @@ enum attr_idn { /* Descriptor idn for Query requests */ enum desc_idn { QUERY_DESC_IDN_DEVICE = 0x0, - QUERY_DESC_IDN_CONFIGURAION = 0x1, + QUERY_DESC_IDN_CONFIGURATION = 0x1, QUERY_DESC_IDN_UNIT = 0x2, QUERY_DESC_IDN_RFU_0 = 0x3, QUERY_DESC_IDN_INTERCONNECT = 0x4, @@ -162,19 +162,13 @@ enum desc_header_offset { QUERY_DESC_DESC_TYPE_OFFSET = 0x01, }; -enum ufs_desc_max_size { - QUERY_DESC_DEVICE_MAX_SIZE = 0x40, - QUERY_DESC_CONFIGURAION_MAX_SIZE = 0x90, - QUERY_DESC_UNIT_MAX_SIZE = 0x23, - QUERY_DESC_INTERCONNECT_MAX_SIZE = 0x06, - /* - * Max. 126 UNICODE characters (2 bytes per character) plus 2 bytes - * of descriptor header. - */ - QUERY_DESC_STRING_MAX_SIZE = 0xFE, - QUERY_DESC_GEOMETRY_MAX_SIZE = 0x44, - QUERY_DESC_POWER_MAX_SIZE = 0x62, - QUERY_DESC_RFU_MAX_SIZE = 0x00, +enum ufs_desc_def_size { + QUERY_DESC_DEVICE_DEF_SIZE = 0x40, + QUERY_DESC_CONFIGURATION_DEF_SIZE = 0x90, + QUERY_DESC_UNIT_DEF_SIZE = 0x23, + QUERY_DESC_INTERCONNECT_DEF_SIZE = 0x06, + QUERY_DESC_GEOMETRY_DEF_SIZE = 0x44, + QUERY_DESC_POWER_DEF_SIZE = 0x62, }; /* Unit descriptor parameters offsets in bytes*/ diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index dc6efbd1be8e..1359913bf840 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -100,19 +100,6 @@ #define ufshcd_hex_dump(prefix_str, buf, len) \ print_hex_dump(KERN_ERR, prefix_str, DUMP_PREFIX_OFFSET, 16, 4, buf, len, false) -static u32 ufs_query_desc_max_size[] = { - QUERY_DESC_DEVICE_MAX_SIZE, - QUERY_DESC_CONFIGURAION_MAX_SIZE, - QUERY_DESC_UNIT_MAX_SIZE, - QUERY_DESC_RFU_MAX_SIZE, - QUERY_DESC_INTERCONNECT_MAX_SIZE, - QUERY_DESC_STRING_MAX_SIZE, - QUERY_DESC_RFU_MAX_SIZE, - QUERY_DESC_GEOMETRY_MAX_SIZE, - QUERY_DESC_POWER_MAX_SIZE, - QUERY_DESC_RFU_MAX_SIZE, -}; - enum { UFSHCD_MAX_CHANNEL = 0, UFSHCD_MAX_ID = 1, @@ -2857,7 +2844,7 @@ static int __ufshcd_query_descriptor(struct ufs_hba *hba, goto out; } - if (*buf_len <= QUERY_DESC_MIN_SIZE || *buf_len > QUERY_DESC_MAX_SIZE) { + if (*buf_len < QUERY_DESC_MIN_SIZE || *buf_len > QUERY_DESC_MAX_SIZE) { dev_err(hba->dev, "%s: descriptor buffer size (%d) is out of range\n", __func__, *buf_len); err = -EINVAL; @@ -2937,6 +2924,92 @@ static int ufshcd_query_descriptor_retry(struct ufs_hba *hba, return err; } +/** + * ufshcd_read_desc_length - read the specified descriptor length from header + * @hba: Pointer to adapter instance + * @desc_id: descriptor idn value + * @desc_index: descriptor index + * @desc_length: pointer to variable to read the length of descriptor + * + * Return 0 in case of success, non-zero otherwise + */ +static int ufshcd_read_desc_length(struct ufs_hba *hba, + enum desc_idn desc_id, + int desc_index, + int *desc_length) +{ + int ret; + u8 header[QUERY_DESC_HDR_SIZE]; + int header_len = QUERY_DESC_HDR_SIZE; + + if (desc_id >= QUERY_DESC_IDN_MAX) + return -EINVAL; + + ret = ufshcd_query_descriptor_retry(hba, UPIU_QUERY_OPCODE_READ_DESC, + desc_id, desc_index, 0, header, + &header_len); + + if (ret) { + dev_err(hba->dev, "%s: Failed to get descriptor header id %d", + __func__, desc_id); + return ret; + } else if (desc_id != header[QUERY_DESC_DESC_TYPE_OFFSET]) { + dev_warn(hba->dev, "%s: descriptor header id %d and desc_id %d mismatch", + __func__, header[QUERY_DESC_DESC_TYPE_OFFSET], + desc_id); + ret = -EINVAL; + } + + *desc_length = header[QUERY_DESC_LENGTH_OFFSET]; + return ret; + +} + +/** + * ufshcd_map_desc_id_to_length - map descriptor IDN to its length + * @hba: Pointer to adapter instance + * @desc_id: descriptor idn value + * @desc_len: mapped desc length (out) + * + * Return 0 in case of success, non-zero otherwise + */ +int ufshcd_map_desc_id_to_length(struct ufs_hba *hba, + enum desc_idn desc_id, int *desc_len) +{ + switch (desc_id) { + case QUERY_DESC_IDN_DEVICE: + *desc_len = hba->desc_size.dev_desc; + break; + case QUERY_DESC_IDN_POWER: + *desc_len = hba->desc_size.pwr_desc; + break; + case QUERY_DESC_IDN_GEOMETRY: + *desc_len = hba->desc_size.geom_desc; + break; + case QUERY_DESC_IDN_CONFIGURATION: + *desc_len = hba->desc_size.conf_desc; + break; + case QUERY_DESC_IDN_UNIT: + *desc_len = hba->desc_size.unit_desc; + break; + case QUERY_DESC_IDN_INTERCONNECT: + *desc_len = hba->desc_size.interc_desc; + break; + case QUERY_DESC_IDN_STRING: + *desc_len = QUERY_DESC_MAX_SIZE; + break; + case QUERY_DESC_IDN_RFU_0: + case QUERY_DESC_IDN_RFU_1: + *desc_len = 0; + break; + default: + *desc_len = 0; + return -EINVAL; + } + return 0; +} +EXPORT_SYMBOL(ufshcd_map_desc_id_to_length); + /** * ufshcd_read_desc_param - read the specified descriptor parameter * @hba: Pointer to adapter instance @@ -2951,42 +3024,49 @@ static int ufshcd_query_descriptor_retry(struct ufs_hba *hba, static int ufshcd_read_desc_param(struct ufs_hba *hba, enum desc_idn desc_id, int desc_index, - u32 param_offset, + u8 param_offset, u8 *param_read_buf, - u32 param_size) + u8 param_size) { int ret; u8 *desc_buf; - u32 buff_len; + int buff_len; bool is_kmalloc = true; - /* safety checks */ - if (desc_id >= QUERY_DESC_IDN_MAX) + /* Safety check */ + if (desc_id >= QUERY_DESC_IDN_MAX || !param_size) return -EINVAL; - buff_len = ufs_query_desc_max_size[desc_id]; - if ((param_offset + param_size) > buff_len) - return -EINVAL; + /* Get the max length of descriptor from structure filled up at probe + * time. + */ + ret = ufshcd_map_desc_id_to_length(hba, desc_id, &buff_len); - if (!param_offset && (param_size == buff_len)) { - /* memory space already available to hold full descriptor */ - desc_buf = param_read_buf; - is_kmalloc = false; - } else { - /* allocate memory to hold full descriptor */ + /* Sanity checks */ + if (ret || !buff_len) { + dev_err(hba->dev, "%s: Failed to get full descriptor length", + __func__); + return ret; + } + + /* Check whether we need temp memory */ + if (param_offset != 0 || param_size < buff_len) { desc_buf = kmalloc(buff_len, GFP_KERNEL); if (!desc_buf) return -ENOMEM; + } else { + desc_buf = param_read_buf; + is_kmalloc = false; } + /* Request for full descriptor */ ret = ufshcd_query_descriptor_retry(hba, UPIU_QUERY_OPCODE_READ_DESC, - desc_id, desc_index, 0, desc_buf, - &buff_len); + desc_id, desc_index, 0, + desc_buf, &buff_len); if (ret) { dev_err(hba->dev, "%s: Failed reading descriptor. desc_id %d, desc_index %d, param_offset %d, ret %d", __func__, desc_id, desc_index, param_offset, ret); - goto out; } @@ -2998,25 +3078,9 @@ static int ufshcd_read_desc_param(struct ufs_hba *hba, goto out; } - /* - * While reading variable size descriptors (like string descriptor), - * some UFS devices may report the "LENGTH" (field in "Transaction - * Specific fields" of Query Response UPIU) same as what was requested - * in Query Request UPIU instead of reporting the actual size of the - * variable size descriptor. - * Although it's safe to ignore the "LENGTH" field for variable size - * descriptors as we can always derive the length of the descriptor from - * the descriptor header fields. Hence this change impose the length - * match check only for fixed size descriptors (for which we always - * request the correct size as part of Query Request UPIU). - */ - if ((desc_id != QUERY_DESC_IDN_STRING) && - (buff_len != desc_buf[QUERY_DESC_LENGTH_OFFSET])) { - dev_err(hba->dev, "%s: desc_buf length mismatch: buff_len %d, buff_len(desc_header) %d", - __func__, buff_len, desc_buf[QUERY_DESC_LENGTH_OFFSET]); - ret = -EINVAL; - goto out; - } + /* Check wherher we will not copy more data, than available */ + if (is_kmalloc && param_size > buff_len) + param_size = buff_len; if (is_kmalloc) memcpy(param_read_buf, &desc_buf[param_offset], param_size); @@ -5919,8 +5983,8 @@ static int ufshcd_set_icc_levels_attr(struct ufs_hba *hba, u32 icc_level) static void ufshcd_init_icc_levels(struct ufs_hba *hba) { int ret; - int buff_len = QUERY_DESC_POWER_MAX_SIZE; - u8 desc_buf[QUERY_DESC_POWER_MAX_SIZE]; + int buff_len = hba->desc_size.pwr_desc; + u8 desc_buf[hba->desc_size.pwr_desc]; ret = ufshcd_read_power_desc(hba, desc_buf, buff_len); if (ret) { @@ -6017,11 +6081,10 @@ static int ufs_get_device_desc(struct ufs_hba *hba, { int err; u8 model_index; - u8 str_desc_buf[QUERY_DESC_STRING_MAX_SIZE + 1] = {0}; - u8 desc_buf[QUERY_DESC_DEVICE_MAX_SIZE]; + u8 str_desc_buf[QUERY_DESC_MAX_SIZE + 1] = {0}; + u8 desc_buf[hba->desc_size.dev_desc]; - err = ufshcd_read_device_desc(hba, desc_buf, - QUERY_DESC_DEVICE_MAX_SIZE); + err = ufshcd_read_device_desc(hba, desc_buf, hba->desc_size.dev_desc); if (err) { dev_err(hba->dev, "%s: Failed reading Device Desc. err = %d\n", __func__, err); @@ -6038,14 +6101,14 @@ static int ufs_get_device_desc(struct ufs_hba *hba, model_index = desc_buf[DEVICE_DESC_PARAM_PRDCT_NAME]; err = ufshcd_read_string_desc(hba, model_index, str_desc_buf, - QUERY_DESC_STRING_MAX_SIZE, ASCII_STD); + QUERY_DESC_MAX_SIZE, ASCII_STD); if (err) { dev_err(hba->dev, "%s: Failed reading Product Name. err = %d\n", __func__, err); goto out; } - str_desc_buf[QUERY_DESC_STRING_MAX_SIZE] = '\0'; + str_desc_buf[QUERY_DESC_MAX_SIZE] = '\0'; strlcpy(dev_desc->model, (str_desc_buf + QUERY_DESC_HDR_SIZE), min_t(u8, str_desc_buf[QUERY_DESC_LENGTH_OFFSET], MAX_MODEL_LEN)); @@ -6251,6 +6314,51 @@ static void ufshcd_clear_dbg_ufs_stats(struct ufs_hba *hba) hba->req_abort_count = 0; } +static void ufshcd_init_desc_sizes(struct ufs_hba *hba) +{ + int err; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_DEVICE, 0, + &hba->desc_size.dev_desc); + if (err) + hba->desc_size.dev_desc = QUERY_DESC_DEVICE_DEF_SIZE; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_POWER, 0, + &hba->desc_size.pwr_desc); + if (err) + hba->desc_size.pwr_desc = QUERY_DESC_POWER_DEF_SIZE; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_INTERCONNECT, 0, + &hba->desc_size.interc_desc); + if (err) + hba->desc_size.interc_desc = QUERY_DESC_INTERCONNECT_DEF_SIZE; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_CONFIGURATION, 0, + &hba->desc_size.conf_desc); + if (err) + hba->desc_size.conf_desc = QUERY_DESC_CONFIGURATION_DEF_SIZE; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_UNIT, 0, + &hba->desc_size.unit_desc); + if (err) + hba->desc_size.unit_desc = QUERY_DESC_UNIT_DEF_SIZE; + + err = ufshcd_read_desc_length(hba, QUERY_DESC_IDN_GEOMETRY, 0, + &hba->desc_size.geom_desc); + if (err) + hba->desc_size.geom_desc = QUERY_DESC_GEOMETRY_DEF_SIZE; +} + +static void ufshcd_def_desc_sizes(struct ufs_hba *hba) +{ + hba->desc_size.dev_desc = QUERY_DESC_DEVICE_DEF_SIZE; + hba->desc_size.pwr_desc = QUERY_DESC_POWER_DEF_SIZE; + hba->desc_size.interc_desc = QUERY_DESC_INTERCONNECT_DEF_SIZE; + hba->desc_size.conf_desc = QUERY_DESC_CONFIGURATION_DEF_SIZE; + hba->desc_size.unit_desc = QUERY_DESC_UNIT_DEF_SIZE; + hba->desc_size.geom_desc = QUERY_DESC_GEOMETRY_DEF_SIZE; +} + /** * ufshcd_probe_hba - probe hba to detect device and initialize * @hba: per-adapter instance @@ -6285,6 +6393,9 @@ static int ufshcd_probe_hba(struct ufs_hba *hba) if (ret) goto out; + /* Init check for device descriptor sizes */ + ufshcd_init_desc_sizes(hba); + ret = ufs_get_device_desc(hba, &card); if (ret) { dev_err(hba->dev, "%s: Failed getting device info. err = %d\n", @@ -6320,6 +6431,7 @@ static int ufshcd_probe_hba(struct ufs_hba *hba) /* set the state as operational after switching to desired gear */ hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; + /* * If we are in error handling context or in power management callbacks * context, no need to scan the host @@ -7774,6 +7886,9 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->mmio_base = mmio_base; hba->irq = irq; + /* Set descriptor lengths to specification defaults */ + ufshcd_def_desc_sizes(hba); + err = ufshcd_hba_init(hba); if (err) goto out_error; diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 7630600217a2..cdc8bd05f7df 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -220,6 +220,15 @@ struct ufs_dev_cmd { struct ufs_query query; }; +struct ufs_desc_size { + int dev_desc; + int pwr_desc; + int geom_desc; + int interc_desc; + int unit_desc; + int conf_desc; +}; + /** * struct ufs_clk_info - UFS clock related info * @list: list headed by hba->clk_list_head @@ -483,6 +492,7 @@ struct ufs_stats { * @clk_list_head: UFS host controller clocks list node head * @pwr_info: holds current power mode * @max_pwr_info: keeps the device max valid pwm + * @desc_size: descriptor sizes reported by device * @urgent_bkops_lvl: keeps track of urgent bkops level for device * @is_urgent_bkops_lvl_checked: keeps track if the urgent bkops level for * device is known or not. @@ -666,6 +676,7 @@ struct ufs_hba { bool is_urgent_bkops_lvl_checked; struct rw_semaphore clk_scaling_lock; + struct ufs_desc_size desc_size; }; /* Returns true if clocks can be gated. Otherwise false */ @@ -832,6 +843,10 @@ int ufshcd_query_flag(struct ufs_hba *hba, enum query_opcode opcode, enum flag_idn idn, bool *flag_res); int ufshcd_hold(struct ufs_hba *hba, bool async); void ufshcd_release(struct ufs_hba *hba); + +int ufshcd_map_desc_id_to_length(struct ufs_hba *hba, enum desc_idn desc_id, + int *desc_length); + u32 ufshcd_get_local_unipro_ver(struct ufs_hba *hba); /* Wrapper functions for safely calling variant operations */ -- cgit From c46f09175dabd5dd6a1507f36250bfa734a0156e Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Wed, 1 Mar 2017 17:27:00 +0900 Subject: scsi: sd: Check for unaligned partial completion Commit ("mpt3sas: Force request partial completion alignment") was not considering the case of commands not operating on logical block size units (e.g. REQ_OP_ZONE_REPORT and its 64B aligned partial replies). In this case, forcing alignment of resid to the device logical block size can break the command result, e.g. in the case of REQ_OP_ZONE_REPORT, the exact number of zone reported by the device. Move the partial completion alignement check of mpt3sas to a generic implementation in sd_done(). The check is added within the default section of the initial req_op() switch case so that the report and reset zone commands are ignored. In addition, as sd_done() is not called for passthrough requests, resid corrections are not done as intended by the initial mpt3sas patch. Fixes: f2e767bb5d6e ("mpt3sas: Force request partial completion alignment") Cc: # v4.10 Signed-off-by: Damien Le Moal Acked-by: Christoph Hellwig Reviewed-by: Bart Van Assche Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 15 --------------- drivers/scsi/sd.c | 17 +++++++++++++++++ 2 files changed, 17 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 46e866c36c8a..69c29c560575 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -4677,7 +4677,6 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) struct MPT3SAS_DEVICE *sas_device_priv_data; u32 response_code = 0; unsigned long flags; - unsigned int sector_sz; mpi_reply = mpt3sas_base_get_reply_virt_addr(ioc, reply); @@ -4742,20 +4741,6 @@ _scsih_io_done(struct MPT3SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply) } xfer_cnt = le32_to_cpu(mpi_reply->TransferCount); - - /* In case of bogus fw or device, we could end up having - * unaligned partial completion. We can force alignment here, - * then scsi-ml does not need to handle this misbehavior. - */ - sector_sz = scmd->device->sector_size; - if (unlikely(!blk_rq_is_passthrough(scmd->request) && sector_sz && - xfer_cnt % sector_sz)) { - sdev_printk(KERN_INFO, scmd->device, - "unaligned partial completion avoided (xfer_cnt=%u, sector_sz=%u)\n", - xfer_cnt, sector_sz); - xfer_cnt = round_down(xfer_cnt, sector_sz); - } - scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt); if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE) log_info = le32_to_cpu(mpi_reply->IOCLogInfo); diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index c7839f6c35cc..fb9b4d29af0b 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1783,6 +1783,8 @@ static int sd_done(struct scsi_cmnd *SCpnt) { int result = SCpnt->result; unsigned int good_bytes = result ? 0 : scsi_bufflen(SCpnt); + unsigned int sector_size = SCpnt->device->sector_size; + unsigned int resid; struct scsi_sense_hdr sshdr; struct scsi_disk *sdkp = scsi_disk(SCpnt->request->rq_disk); struct request *req = SCpnt->request; @@ -1813,6 +1815,21 @@ static int sd_done(struct scsi_cmnd *SCpnt) scsi_set_resid(SCpnt, blk_rq_bytes(req)); } break; + default: + /* + * In case of bogus fw or device, we could end up having + * an unaligned partial completion. Check this here and force + * alignment. + */ + resid = scsi_get_resid(SCpnt); + if (resid & (sector_size - 1)) { + sd_printk(KERN_INFO, sdkp, + "Unaligned partial completion (resid=%u, sector_sz=%u)\n", + resid, sector_size); + resid = min(scsi_bufflen(SCpnt), + round_up(resid, sector_size)); + scsi_set_resid(SCpnt, resid); + } } if (result) { -- cgit From 8893cf6cb1cf56334c05120e23092dbfc9423ebb Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Wed, 1 Mar 2017 09:00:36 -0800 Subject: scsi: mpt3sas: Avoid sleeping in interrupt context Commit 669f044170d8 ("scsi: srp_transport: Move queuecommand() wait code to SCSI core") can make scsi_internal_device_block() sleep. However, the mpt3sas driver can call this function from an interrupt handler. Hence add a second argument to scsi_internal_device_block() that restores the old behavior of this function for the mpt3sas handler. The call chain that triggered an "IRQ handler enabled interrupts" complaint is as follows: _base_interrupt() -> _base_async_event() -> mpt3sas_scsih_event_callback() -> _scsih_check_topo_delete_events() -> _scsih_block_io_to_children_attached_directly() -> _scsih_block_io_device() -> _scsih_internal_device_block() -> scsi_internal_device_block() Reported-by: Omar Sandoval Signed-off-by: Bart Van Assche Cc: Omar Sandoval Cc: Hannes Reinecke Cc: Sagi Grimberg Cc: Christoph Hellwig Cc: Sathya Prakash Cc: Chaitra P B Cc: Suganath Prabu Subramani Cc: Sreekanth Reddy Cc: # v4.10+ Tested-by: Omar Sandoval Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.h | 3 --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 4 ++-- drivers/scsi/scsi_lib.c | 14 ++++++++++---- drivers/scsi/scsi_priv.h | 3 --- 4 files changed, 12 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 7fe7e6ed595b..8981806fb13f 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1442,9 +1442,6 @@ void mpt3sas_transport_update_links(struct MPT3SAS_ADAPTER *ioc, u64 sas_address, u16 handle, u8 phy_number, u8 link_rate); extern struct sas_function_template mpt3sas_transport_functions; extern struct scsi_transport_template *mpt3sas_transport_template; -extern int scsi_internal_device_block(struct scsi_device *sdev); -extern int scsi_internal_device_unblock(struct scsi_device *sdev, - enum scsi_device_state new_state); /* trigger data externs */ void mpt3sas_send_trigger_data_event(struct MPT3SAS_ADAPTER *ioc, struct SL_WH_TRIGGERS_EVENT_DATA_T *event_data); diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 69c29c560575..919ba2bb15f1 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -2859,7 +2859,7 @@ _scsih_internal_device_block(struct scsi_device *sdev, sas_device_priv_data->sas_target->handle); sas_device_priv_data->block = 1; - r = scsi_internal_device_block(sdev); + r = scsi_internal_device_block(sdev, false); if (r == -EINVAL) sdev_printk(KERN_WARNING, sdev, "device_block failed with return(%d) for handle(0x%04x)\n", @@ -2895,7 +2895,7 @@ _scsih_internal_device_unblock(struct scsi_device *sdev, "performing a block followed by an unblock\n", r, sas_device_priv_data->sas_target->handle); sas_device_priv_data->block = 1; - r = scsi_internal_device_block(sdev); + r = scsi_internal_device_block(sdev, false); if (r) sdev_printk(KERN_WARNING, sdev, "retried device_block " "failed with return(%d) for handle(0x%04x)\n", diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index f5e45a252485..f41e6b84a1bd 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -2932,6 +2932,8 @@ EXPORT_SYMBOL(scsi_target_resume); /** * scsi_internal_device_block - internal function to put a device temporarily into the SDEV_BLOCK state * @sdev: device to block + * @wait: Whether or not to wait until ongoing .queuecommand() / + * .queue_rq() calls have finished. * * Block request made by scsi lld's to temporarily stop all * scsi commands on the specified device. May sleep. @@ -2949,7 +2951,7 @@ EXPORT_SYMBOL(scsi_target_resume); * remove the rport mutex lock and unlock calls from srp_queuecommand(). */ int -scsi_internal_device_block(struct scsi_device *sdev) +scsi_internal_device_block(struct scsi_device *sdev, bool wait) { struct request_queue *q = sdev->request_queue; unsigned long flags; @@ -2969,12 +2971,16 @@ scsi_internal_device_block(struct scsi_device *sdev) * request queue. */ if (q->mq_ops) { - blk_mq_quiesce_queue(q); + if (wait) + blk_mq_quiesce_queue(q); + else + blk_mq_stop_hw_queues(q); } else { spin_lock_irqsave(q->queue_lock, flags); blk_stop_queue(q); spin_unlock_irqrestore(q->queue_lock, flags); - scsi_wait_for_queuecommand(sdev); + if (wait) + scsi_wait_for_queuecommand(sdev); } return 0; @@ -3036,7 +3042,7 @@ EXPORT_SYMBOL_GPL(scsi_internal_device_unblock); static void device_block(struct scsi_device *sdev, void *data) { - scsi_internal_device_block(sdev); + scsi_internal_device_block(sdev, true); } static int diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index 99bfc985e190..f11bd102d6d5 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -188,8 +188,5 @@ static inline void scsi_dh_remove_device(struct scsi_device *sdev) { } */ #define SCSI_DEVICE_BLOCK_MAX_TIMEOUT 600 /* units in seconds */ -extern int scsi_internal_device_block(struct scsi_device *sdev); -extern int scsi_internal_device_unblock(struct scsi_device *sdev, - enum scsi_device_state new_state); #endif /* _SCSI_PRIV_H */ -- cgit From 52e51f16407b7b34e26affb500a21e250d9fce0b Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 1 Mar 2017 19:04:35 +0000 Subject: efi/libstub: Treat missing SecureBoot variable as Secure Boot disabled The newly refactored code that infers the firmware's Secure Boot state prints the following error when the EFI variable 'SecureBoot' does not exist: EFI stub: ERROR: Could not determine UEFI Secure Boot status. However, this variable is only guaranteed to be defined on a system that is Secure Boot capable to begin with, and so it is not an error if it is missing. So report Secure Boot as being disabled in this case, without printing any error messages. Signed-off-by: Ard Biesheuvel Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1488395076-29712-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar --- drivers/firmware/efi/libstub/secureboot.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/firmware/efi/libstub/secureboot.c b/drivers/firmware/efi/libstub/secureboot.c index 6def402bf569..5da36e56b36a 100644 --- a/drivers/firmware/efi/libstub/secureboot.c +++ b/drivers/firmware/efi/libstub/secureboot.c @@ -45,6 +45,8 @@ enum efi_secureboot_mode efi_get_secureboot(efi_system_table_t *sys_table_arg) size = sizeof(secboot); status = get_efi_var(efi_SecureBoot_name, &efi_variable_guid, NULL, &size, &secboot); + if (status == EFI_NOT_FOUND) + return efi_secureboot_mode_disabled; if (status != EFI_SUCCESS) goto out_efi_err; @@ -78,7 +80,5 @@ secure_boot_enabled: out_efi_err: pr_efi_err(sys_table_arg, "Could not determine UEFI Secure Boot status.\n"); - if (status == EFI_NOT_FOUND) - return efi_secureboot_mode_disabled; return efi_secureboot_mode_unknown; } -- cgit From d1eb98143c56f24fef125f5bbed49ae0b52fb7d6 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 1 Mar 2017 19:05:54 +0000 Subject: efi/arm: Fix boot crash with CONFIG_CPUMASK_OFFSTACK=y On ARM and arm64, we use a dedicated mm_struct to map the UEFI Runtime Services regions, which allows us to map those regions on demand, and in a way that is guaranteed to be compatible with incoming kernels across kexec. As it turns out, we don't fully initialize the mm_struct in the same way as process mm_structs are initialized on fork(), which results in the following crash on ARM if CONFIG_CPUMASK_OFFSTACK=y is enabled: ... EFI Variables Facility v0.08 2004-May-17 Unable to handle kernel NULL pointer dereference at virtual address 00000000 [...] Process swapper/0 (pid: 1) ... __memzero() check_and_switch_context() virt_efi_get_next_variable() efivar_init() efivars_sysfs_init() do_one_initcall() ... This is due to a missing call to mm_init_cpumask(), so add it. Signed-off-by: Ard Biesheuvel Cc: # v4.5+ Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/1488395154-29786-1-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar --- drivers/firmware/efi/arm-runtime.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c index 349dc3e1e52e..974c5a31a005 100644 --- a/drivers/firmware/efi/arm-runtime.c +++ b/drivers/firmware/efi/arm-runtime.c @@ -65,6 +65,7 @@ static bool __init efi_virtmap_init(void) bool systab_found; efi_mm.pgd = pgd_alloc(&efi_mm); + mm_init_cpumask(&efi_mm); init_new_context(NULL, &efi_mm); systab_found = false; -- cgit From 4ec3dd89052a437304e1451733c989b8cec681af Mon Sep 17 00:00:00 2001 From: Zhao Yan Date: Thu, 2 Mar 2017 15:12:47 +0800 Subject: drm/i915/gvt: fix an error for F_RO flag the ro_mask is not stored into each mmio entry Fixes: 12d14cc43b34 ("drm/i915/gvt: Introduce a framework for tracking HW registers.") Signed-off-by: Zhao Yan Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/handlers.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c index 548aedfbd402..8e43395c748a 100644 --- a/drivers/gpu/drm/i915/gvt/handlers.c +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -121,6 +121,7 @@ static int new_mmio_info(struct intel_gvt *gvt, info->size = size; info->length = (i + 4) < end ? 4 : (end - i); info->addr_mask = addr_mask; + info->ro_mask = ro_mask; info->device = device; info->read = read ? read : intel_vgpu_default_mmio_read; info->write = write ? write : intel_vgpu_default_mmio_write; -- cgit From 0265634eb9e04a16ae99941c320718c38eb865e0 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Sat, 25 Feb 2017 08:28:16 -0300 Subject: [media] serial_ir: ensure we're ready to receive interrupts When the interrupt requested with devm_request_irq(), serial_ir.rcdev is still null so will cause null deference if the irq handler is called early on. Also ensure that timeout_timer is setup. Link: http://lkml.kernel.org/r/CA+55aFxsh2uF8gi5sN_guY3Z+tiLv7LpJYKBw+y8vqLzp+TsnQ@mail.gmail.com [mchehab@s-opensource.com: moved serial_ir_probe() back to its original place] Cc: # 4.10 Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/serial_ir.c | 123 ++++++++++++++++++++++--------------------- 1 file changed, 62 insertions(+), 61 deletions(-) (limited to 'drivers') diff --git a/drivers/media/rc/serial_ir.c b/drivers/media/rc/serial_ir.c index 923fb2299553..41b54e40176c 100644 --- a/drivers/media/rc/serial_ir.c +++ b/drivers/media/rc/serial_ir.c @@ -487,10 +487,69 @@ static void serial_ir_timeout(unsigned long arg) ir_raw_event_handle(serial_ir.rcdev); } +/* Needed by serial_ir_probe() */ +static int serial_ir_tx(struct rc_dev *dev, unsigned int *txbuf, + unsigned int count); +static int serial_ir_tx_duty_cycle(struct rc_dev *dev, u32 cycle); +static int serial_ir_tx_carrier(struct rc_dev *dev, u32 carrier); +static int serial_ir_open(struct rc_dev *rcdev); +static void serial_ir_close(struct rc_dev *rcdev); + static int serial_ir_probe(struct platform_device *dev) { + struct rc_dev *rcdev; int i, nlow, nhigh, result; + rcdev = devm_rc_allocate_device(&dev->dev, RC_DRIVER_IR_RAW); + if (!rcdev) + return -ENOMEM; + + if (hardware[type].send_pulse && hardware[type].send_space) + rcdev->tx_ir = serial_ir_tx; + if (hardware[type].set_send_carrier) + rcdev->s_tx_carrier = serial_ir_tx_carrier; + if (hardware[type].set_duty_cycle) + rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle; + + switch (type) { + case IR_HOMEBREW: + rcdev->input_name = "Serial IR type home-brew"; + break; + case IR_IRDEO: + rcdev->input_name = "Serial IR type IRdeo"; + break; + case IR_IRDEO_REMOTE: + rcdev->input_name = "Serial IR type IRdeo remote"; + break; + case IR_ANIMAX: + rcdev->input_name = "Serial IR type AnimaX"; + break; + case IR_IGOR: + rcdev->input_name = "Serial IR type IgorPlug"; + break; + } + + rcdev->input_phys = KBUILD_MODNAME "/input0"; + rcdev->input_id.bustype = BUS_HOST; + rcdev->input_id.vendor = 0x0001; + rcdev->input_id.product = 0x0001; + rcdev->input_id.version = 0x0100; + rcdev->open = serial_ir_open; + rcdev->close = serial_ir_close; + rcdev->dev.parent = &serial_ir.pdev->dev; + rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER; + rcdev->driver_name = KBUILD_MODNAME; + rcdev->map_name = RC_MAP_RC6_MCE; + rcdev->min_timeout = 1; + rcdev->timeout = IR_DEFAULT_TIMEOUT; + rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT; + rcdev->rx_resolution = 250000; + + serial_ir.rcdev = rcdev; + + setup_timer(&serial_ir.timeout_timer, serial_ir_timeout, + (unsigned long)&serial_ir); + result = devm_request_irq(&dev->dev, irq, serial_ir_irq_handler, share_irq ? IRQF_SHARED : 0, KBUILD_MODNAME, &hardware); @@ -516,9 +575,6 @@ static int serial_ir_probe(struct platform_device *dev) return -EBUSY; } - setup_timer(&serial_ir.timeout_timer, serial_ir_timeout, - (unsigned long)&serial_ir); - result = hardware_init_port(); if (result < 0) return result; @@ -552,7 +608,8 @@ static int serial_ir_probe(struct platform_device *dev) sense ? "low" : "high"); dev_dbg(&dev->dev, "Interrupt %d, port %04x obtained\n", irq, io); - return 0; + + return devm_rc_register_device(&dev->dev, rcdev); } static int serial_ir_open(struct rc_dev *rcdev) @@ -723,7 +780,6 @@ static void serial_ir_exit(void) static int __init serial_ir_init_module(void) { - struct rc_dev *rcdev; int result; switch (type) { @@ -754,63 +810,9 @@ static int __init serial_ir_init_module(void) sense = !!sense; result = serial_ir_init(); - if (result) - return result; - - rcdev = devm_rc_allocate_device(&serial_ir.pdev->dev, RC_DRIVER_IR_RAW); - if (!rcdev) { - result = -ENOMEM; - goto serial_cleanup; - } - - if (hardware[type].send_pulse && hardware[type].send_space) - rcdev->tx_ir = serial_ir_tx; - if (hardware[type].set_send_carrier) - rcdev->s_tx_carrier = serial_ir_tx_carrier; - if (hardware[type].set_duty_cycle) - rcdev->s_tx_duty_cycle = serial_ir_tx_duty_cycle; - - switch (type) { - case IR_HOMEBREW: - rcdev->input_name = "Serial IR type home-brew"; - break; - case IR_IRDEO: - rcdev->input_name = "Serial IR type IRdeo"; - break; - case IR_IRDEO_REMOTE: - rcdev->input_name = "Serial IR type IRdeo remote"; - break; - case IR_ANIMAX: - rcdev->input_name = "Serial IR type AnimaX"; - break; - case IR_IGOR: - rcdev->input_name = "Serial IR type IgorPlug"; - break; - } - - rcdev->input_phys = KBUILD_MODNAME "/input0"; - rcdev->input_id.bustype = BUS_HOST; - rcdev->input_id.vendor = 0x0001; - rcdev->input_id.product = 0x0001; - rcdev->input_id.version = 0x0100; - rcdev->open = serial_ir_open; - rcdev->close = serial_ir_close; - rcdev->dev.parent = &serial_ir.pdev->dev; - rcdev->allowed_protocols = RC_BIT_ALL_IR_DECODER; - rcdev->driver_name = KBUILD_MODNAME; - rcdev->map_name = RC_MAP_RC6_MCE; - rcdev->min_timeout = 1; - rcdev->timeout = IR_DEFAULT_TIMEOUT; - rcdev->max_timeout = 10 * IR_DEFAULT_TIMEOUT; - rcdev->rx_resolution = 250000; - - serial_ir.rcdev = rcdev; - - result = rc_register_device(rcdev); - if (!result) return 0; -serial_cleanup: + serial_ir_exit(); return result; } @@ -818,7 +820,6 @@ serial_cleanup: static void __exit serial_ir_exit_module(void) { del_timer_sync(&serial_ir.timeout_timer); - rc_unregister_device(serial_ir.rcdev); serial_ir_exit(); } -- cgit From 2e1e4949f9dfb053122785cd73540bb1e61f768b Mon Sep 17 00:00:00 2001 From: Qi Hou Date: Fri, 3 Mar 2017 15:57:11 +0800 Subject: i2c: add missing of_node_put in i2c_mux_del_adapters Refcount of of_node is increased with of_node_get() in i2c_mux_add_adapter(). It must be decreased with of_node_put() in i2c_mux_del_adapters(). Cc: stable@vger.kernel.org Signed-off-by: Qi Hou Reviewed-by: Zhang Xiao Signed-off-by: Peter Rosin --- drivers/i2c/i2c-mux.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c index 83768e85a919..2178266bca79 100644 --- a/drivers/i2c/i2c-mux.c +++ b/drivers/i2c/i2c-mux.c @@ -429,6 +429,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) while (muxc->num_adapters) { struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters]; struct i2c_mux_priv *priv = adap->algo_data; + struct device_node *np = adap->dev.of_node; muxc->adapter[muxc->num_adapters] = NULL; @@ -438,6 +439,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) sysfs_remove_link(&priv->adap.dev.kobj, "mux_device"); i2c_del_adapter(adap); + of_node_put(np); kfree(priv); } } -- cgit From db5b15b74ed9a5c04bb808d18ffa2c773f5c18c0 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Mon, 13 Feb 2017 10:35:44 -0200 Subject: [media] lirc: fix dead lock between open and wakeup_filter The locking in lirc needs improvement, but for now just fix this potential deadlock. ====================================================== [ INFO: possible circular locking dependency detected ] 4.10.0-rc1+ #1 Not tainted ------------------------------------------------------- bash/2502 is trying to acquire lock: (ir_raw_handler_lock){+.+.+.}, at: [] ir_raw_encode_scancode+0x3e/0xb0 [rc_core] but task is already holding lock: (&dev->lock){+.+.+.}, at: [] store_filter+0x9f/0x240 [rc_core] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&dev->lock){+.+.+.}: [] lock_acquire+0xfd/0x200 [] mutex_lock_nested+0x77/0x6d0 [] rc_open+0x2a/0x80 [rc_core] [] lirc_dev_fop_open+0xda/0x1e0 [lirc_dev] [] chrdev_open+0xb0/0x210 [] do_dentry_open+0x20a/0x2f0 [] vfs_open+0x4c/0x80 [] path_openat+0x5bc/0xc00 [] do_filp_open+0x91/0x100 [] do_sys_open+0x130/0x220 [] SyS_open+0x1e/0x20 [] entry_SYSCALL_64_fastpath+0x1f/0xc2 -> #1 (lirc_dev_lock){+.+.+.}: [] lock_acquire+0xfd/0x200 [] mutex_lock_nested+0x77/0x6d0 [] lirc_register_driver+0x67/0x59b [lirc_dev] [] ir_lirc_register+0x1f4/0x260 [ir_lirc_codec] [] ir_raw_handler_register+0x7c/0xb0 [rc_core] [] 0xffffffffc0398010 [] do_one_initcall+0x52/0x1b0 [] do_init_module+0x5f/0x1fa [] load_module+0x2675/0x2b00 [] SYSC_finit_module+0xdf/0x110 [] SyS_finit_module+0xe/0x10 [] do_syscall_64+0x6c/0x1f0 [] return_from_SYSCALL_64+0x0/0x7a -> #0 (ir_raw_handler_lock){+.+.+.}: [] __lock_acquire+0x10f7/0x1290 [] lock_acquire+0xfd/0x200 [] mutex_lock_nested+0x77/0x6d0 [] ir_raw_encode_scancode+0x3e/0xb0 [rc_core] [] loop_set_wakeup_filter+0x62/0xbd [rc_loopback] [] store_filter+0x1aa/0x240 [rc_core] [] dev_attr_store+0x18/0x30 [] sysfs_kf_write+0x45/0x60 [] kernfs_fop_write+0x155/0x1e0 [] __vfs_write+0x37/0x160 [] vfs_write+0xc8/0x1e0 [] SyS_write+0x58/0xc0 [] entry_SYSCALL_64_fastpath+0x1f/0xc2 other info that might help us debug this: Chain exists of: ir_raw_handler_lock --> lirc_dev_lock --> &dev->lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&dev->lock); lock(lirc_dev_lock); lock(&dev->lock); lock(ir_raw_handler_lock); *** DEADLOCK *** 4 locks held by bash/2502: #0: (sb_writers#4){.+.+.+}, at: [] vfs_write+0x195/0x1e0 #1: (&of->mutex){+.+.+.}, at: [] kernfs_fop_write+0x11f/0x1e0 #2: (s_active#215){.+.+.+}, at: [] kernfs_fop_write+0x128/0x1e0 #3: (&dev->lock){+.+.+.}, at: [] store_filter+0x9f/0x240 [rc_core] stack backtrace: CPU: 3 PID: 2502 Comm: bash Not tainted 4.10.0-rc1+ #1 Hardware name: /DG45ID, BIOS IDG4510H.86A.0135.2011.0225.1100 02/25/2011 Call Trace: dump_stack+0x86/0xc3 print_circular_bug+0x1be/0x210 __lock_acquire+0x10f7/0x1290 lock_acquire+0xfd/0x200 ? ir_raw_encode_scancode+0x3e/0xb0 [rc_core] ? ir_raw_encode_scancode+0x3e/0xb0 [rc_core] mutex_lock_nested+0x77/0x6d0 ? ir_raw_encode_scancode+0x3e/0xb0 [rc_core] ? loop_set_wakeup_filter+0x44/0xbd [rc_loopback] ir_raw_encode_scancode+0x3e/0xb0 [rc_core] loop_set_wakeup_filter+0x62/0xbd [rc_loopback] ? loop_set_tx_duty_cycle+0x70/0x70 [rc_loopback] store_filter+0x1aa/0x240 [rc_core] dev_attr_store+0x18/0x30 sysfs_kf_write+0x45/0x60 kernfs_fop_write+0x155/0x1e0 __vfs_write+0x37/0x160 ? rcu_read_lock_sched_held+0x4a/0x80 ? rcu_sync_lockdep_assert+0x2f/0x60 ? __sb_start_write+0x10c/0x220 ? vfs_write+0x195/0x1e0 ? security_file_permission+0x3b/0xc0 vfs_write+0xc8/0x1e0 SyS_write+0x58/0xc0 entry_SYSCALL_64_fastpath+0x1f/0xc2 Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/lirc_dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/rc/lirc_dev.c b/drivers/media/rc/lirc_dev.c index a54ca531d8ef..4630f3e67538 100644 --- a/drivers/media/rc/lirc_dev.c +++ b/drivers/media/rc/lirc_dev.c @@ -436,6 +436,8 @@ int lirc_dev_fop_open(struct inode *inode, struct file *file) return -ERESTARTSYS; ir = irctls[iminor(inode)]; + mutex_unlock(&lirc_dev_lock); + if (!ir) { retval = -ENODEV; goto error; @@ -476,8 +478,6 @@ int lirc_dev_fop_open(struct inode *inode, struct file *file) } error: - mutex_unlock(&lirc_dev_lock); - nonseekable_open(inode, file); return retval; -- cgit From c1305a40722f3e02f3d971acc22f5991aff239a6 Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Sun, 12 Feb 2017 15:01:22 -0200 Subject: [media] rc: nuvoton: fix deadlock in nvt_write_wakeup_codes nvt_write_wakeup_codes acquires the same lock as the ISR but doesn't disable interrupts on the local CPU. This caused the following deadlock. Fix this by using spin_lock_irqsave. [ 432.362008] ================================ [ 432.362074] WARNING: inconsistent lock state [ 432.362144] 4.10.0-rc7-next-20170210 #1 Not tainted [ 432.362219] -------------------------------- [ 432.362286] inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage. [ 432.362379] swapper/0/0 [HC1[1]:SC0[0]:HE0:SE1] takes: [ 432.362457] (&(&nvt->lock)->rlock){?.+...}, at: [] nvt_cir_isr+0x2d/0x520 [nuvoton_cir] [ 432.362611] {HARDIRQ-ON-W} state was registered at: [ 432.362686] [ 432.362698] [] __lock_acquire+0x5dc/0x1260 [ 432.362812] [ 432.362817] [] lock_acquire+0xe9/0x1d0 [ 432.362927] [ 432.362934] [] _raw_spin_lock+0x33/0x50 [ 432.363045] [ 432.363051] [] nvt_write_wakeup_codes.isra.12+0x22/0xe0 [nuvoton_cir] [ 432.363193] [ 432.363199] [] wakeup_data_store+0xdf/0xf0 [nuvoton_cir] [ 432.363327] [ 432.363333] [] dev_attr_store+0x13/0x20 [ 432.363441] [ 432.363449] [] sysfs_kf_write+0x40/0x50 [ 432.363558] [ 432.363564] [] kernfs_fop_write+0x150/0x1e0 [ 432.363676] [ 432.363685] [] __vfs_write+0x23/0x120 [ 432.363791] [ 432.363798] [] vfs_write+0xc3/0x1e0 [ 432.363902] [ 432.363909] [] SyS_write+0x44/0xa0 [ 432.364012] [ 432.364021] [] do_syscall_64+0x57/0x140 [ 432.364129] [ 432.364135] [] return_from_SYSCALL_64+0x0/0x7a [ 432.364252] irq event stamp: 415118 [ 432.364313] hardirqs last enabled at (415115): [] cpuidle_enter_state+0x11b/0x370 [ 432.364445] hardirqs last disabled at (415116): [] common_interrupt+0x8b/0x90 [ 432.364573] softirqs last enabled at (415118): [] _local_bh_enable+0x1c/0x50 [ 432.364699] softirqs last disabled at (415117): [] irq_enter+0x43/0x60 [ 432.364814] other info that might help us debug this: [ 432.364909] Possible unsafe locking scenario: [ 432.367821] CPU0 [ 432.370645] ---- [ 432.373432] lock(&(&nvt->lock)->rlock); [ 432.376228] [ 432.378982] lock(&(&nvt->lock)->rlock); [ 432.381757] *** DEADLOCK *** [ 432.389888] no locks held by swapper/0/0. [ 432.392574] stack backtrace: [ 432.397774] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.10.0-rc7-next-20170210 #1 [ 432.400375] Hardware name: ZOTAC ZBOX-CI321NANO/ZBOX-CI321NANO, BIOS B246P105 06/01/2015 [ 432.403023] Call Trace: [ 432.405636] [ 432.408208] dump_stack+0x68/0x93 [ 432.410775] print_usage_bug+0x1dd/0x1f0 [ 432.413334] mark_lock+0x559/0x5c0 [ 432.415871] ? print_shortest_lock_dependencies+0x1a0/0x1a0 [ 432.418431] __lock_acquire+0x6b1/0x1260 [ 432.420941] lock_acquire+0xe9/0x1d0 [ 432.423396] ? nvt_cir_isr+0x2d/0x520 [nuvoton_cir] [ 432.425844] _raw_spin_lock+0x33/0x50 [ 432.428252] ? nvt_cir_isr+0x2d/0x520 [nuvoton_cir] [ 432.430670] nvt_cir_isr+0x2d/0x520 [nuvoton_cir] [ 432.433085] __handle_irq_event_percpu+0x43/0x330 [ 432.435493] handle_irq_event_percpu+0x1e/0x50 [ 432.437884] handle_irq_event+0x34/0x60 [ 432.440236] handle_edge_irq+0x6a/0x150 [ 432.442561] handle_irq+0x15/0x20 [ 432.444854] do_IRQ+0x57/0x110 [ 432.447115] common_interrupt+0x90/0x90 [ 432.449380] RIP: 0010:cpuidle_enter_state+0x120/0x370 [ 432.451653] RSP: 0018:ffffffff81c03dd8 EFLAGS: 00000206 ORIG_RAX: ffffffffffffffcc [ 432.453994] RAX: ffffffff81c14500 RBX: 0000000000000008 RCX: 00000064aac6f2d2 [ 432.456349] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff81c14500 [ 432.458704] RBP: ffffffff81c03e18 R08: cccccccccccccccd R09: 0000000000000018 [ 432.461072] R10: 0000000000000000 R11: 0000000000000000 R12: ffff880100a21260 [ 432.463450] R13: ffffffff81c7e6f8 R14: 0000000000000008 R15: ffffffff81c7e6e0 [ 432.465819] [ 432.468104] ? cpuidle_enter_state+0x11b/0x370 [ 432.470413] cpuidle_enter+0x12/0x20 [ 432.472698] call_cpuidle+0x1e/0x40 [ 432.474967] do_idle+0xe3/0x1c0 [ 432.477172] cpu_startup_entry+0x18/0x20 [ 432.479376] rest_init+0x130/0x140 [ 432.481565] start_kernel+0x3cc/0x3d9 [ 432.483750] x86_64_start_reservations+0x2a/0x2c [ 432.485980] x86_64_start_kernel+0x178/0x18b [ 432.488222] start_cpu+0x14/0x14 [ 432.490453] ? start_cpu+0x14/0x14 Fixes: 97c129747af5 "[media] rc: nuvoton-cir: Add support wakeup via sysfs filter callback" Signed-off-by: Heiner Kallweit Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/nuvoton-cir.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c index b109f8246b96..ec4b25bd2ec2 100644 --- a/drivers/media/rc/nuvoton-cir.c +++ b/drivers/media/rc/nuvoton-cir.c @@ -176,12 +176,13 @@ static void nvt_write_wakeup_codes(struct rc_dev *dev, { u8 tolerance, config; struct nvt_dev *nvt = dev->priv; + unsigned long flags; int i; /* hardcode the tolerance to 10% */ tolerance = DIV_ROUND_UP(count, 10); - spin_lock(&nvt->lock); + spin_lock_irqsave(&nvt->lock, flags); nvt_clear_cir_wake_fifo(nvt); nvt_cir_wake_reg_write(nvt, count, CIR_WAKE_FIFO_CMP_DEEP); @@ -203,7 +204,7 @@ static void nvt_write_wakeup_codes(struct rc_dev *dev, nvt_cir_wake_reg_write(nvt, config, CIR_WAKE_IRCON); - spin_unlock(&nvt->lock); + spin_unlock_irqrestore(&nvt->lock, flags); } static ssize_t wakeup_data_show(struct device *dev, -- cgit From 413808685dd7c9b54bbc5af79da2eaddd0fc3cb2 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Wed, 22 Feb 2017 18:48:01 -0300 Subject: [media] rc: raw decoder for keymap protocol is not loaded on register When the protocol is set via the sysfs protocols attribute, the decoder is loaded. However, when it is not when a device is first plugged in or registered. Fixes: acc1c3c ("[media] media: rc: load decoder modules on-demand") Signed-off-by: Sean Young Cc: # v4.5+ Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/rc-main.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index 2424946740e6..a158b321b40a 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -1663,6 +1663,7 @@ static int rc_setup_rx_device(struct rc_dev *dev) { int rc; struct rc_map *rc_map; + u64 rc_type; if (!dev->map_name) return -EINVAL; @@ -1677,15 +1678,18 @@ static int rc_setup_rx_device(struct rc_dev *dev) if (rc) return rc; - if (dev->change_protocol) { - u64 rc_type = (1ll << rc_map->rc_type); + rc_type = BIT_ULL(rc_map->rc_type); + if (dev->change_protocol) { rc = dev->change_protocol(dev, &rc_type); if (rc < 0) goto out_table; dev->enabled_protocols = rc_type; } + if (dev->driver_type == RC_DRIVER_IR_RAW) + ir_raw_load_modules(&rc_type); + set_bit(EV_KEY, dev->input_dev->evbit); set_bit(EV_REP, dev->input_dev->evbit); set_bit(EV_MSC, dev->input_dev->evbit); -- cgit From 5df62771c556e4ec9d7ecea1f070ff6da4bce151 Mon Sep 17 00:00:00 2001 From: Sean Young Date: Thu, 23 Feb 2017 06:11:21 -0300 Subject: [media] rc: protocol is not set on register for raw IR devices ir_raw_event_register() sets up change_protocol(), and without that set, rc_setup_rx_device() does not set the protocol for the device on register. The standard udev rules run ir-keytable, which writes to the protocols file again, which hides this problem. Fixes: 7ff2c2b ("[media] rc-main: split setup and unregister functions") Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/rc-main.c | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/media/rc/rc-main.c b/drivers/media/rc/rc-main.c index a158b321b40a..d84533699668 100644 --- a/drivers/media/rc/rc-main.c +++ b/drivers/media/rc/rc-main.c @@ -1781,12 +1781,6 @@ int rc_register_device(struct rc_dev *dev) dev->input_name ?: "Unspecified device", path ?: "N/A"); kfree(path); - if (dev->driver_type != RC_DRIVER_IR_RAW_TX) { - rc = rc_setup_rx_device(dev); - if (rc) - goto out_dev; - } - if (dev->driver_type == RC_DRIVER_IR_RAW || dev->driver_type == RC_DRIVER_IR_RAW_TX) { if (!raw_init) { @@ -1795,7 +1789,13 @@ int rc_register_device(struct rc_dev *dev) } rc = ir_raw_event_register(dev); if (rc < 0) - goto out_rx; + goto out_dev; + } + + if (dev->driver_type != RC_DRIVER_IR_RAW_TX) { + rc = rc_setup_rx_device(dev); + if (rc) + goto out_raw; } /* Allow the RC sysfs nodes to be accessible */ @@ -1807,8 +1807,8 @@ int rc_register_device(struct rc_dev *dev) return 0; -out_rx: - rc_free_rx_device(dev); +out_raw: + ir_raw_event_unregister(dev); out_dev: device_del(&dev->dev); out_unlock: -- cgit From 2bc756e7dde20972300bb8e2e46dd430d6d2d5db Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 2 Mar 2017 23:22:29 +0100 Subject: cpufreq: intel_pstate: Do not use performance_limits in passive mode Using performance_limits in the passive mode doesn't make sense, because in that mode the global limits are applied to the frequency selected by the scaling governor. The maximum and minimum P-state limits in performance_limits are both set to 100 percent which will put all CPUs into the turbo range regardless of what governor is used and what frequencies are selected by it (that is particularly undesirable on CPUs with the generic powersave governor attached). For this reason, make intel_pstate_register_driver() always point limits to powersave_limits in the passive mode. Fixes: 001c76f05b01 (cpufreq: intel_pstate: Generic governors support) Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 9ee13f195c37..7fc1f8a0ef44 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2442,8 +2442,11 @@ static int intel_pstate_register_driver(void) intel_pstate_init_limits(&powersave_limits); intel_pstate_set_performance_limits(&performance_limits); - limits = IS_ENABLED(CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE) ? - &performance_limits : &powersave_limits; + if (IS_ENABLED(CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE) && + intel_pstate_driver == &intel_pstate) + limits = &performance_limits; + else + limits = &powersave_limits; ret = cpufreq_register_driver(intel_pstate_driver); if (ret) { -- cgit From 7f17326fc0b69afbda7aed6c4ce8e2328b74203b Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 2 Mar 2017 23:24:36 +0100 Subject: cpufreq: intel_pstate: Fix intel_cpufreq_verify_policy() The intel_pstate_update_perf_limits() called from intel_cpufreq_verify_policy() may cause global P-state limits to change which is generally confusing and unnecessary. In the passive mode the global limits are only applied to the frequency selected by the scaling governor (they are not taken into account by governors when making decisions anyway), so making them follow the per-policy limits serves no purpose and may go against user expectations (as it generally causes the global attributes in sysfs to change even though they have not been written to in some cases). Fix that by dropping the intel_pstate_update_perf_limits() invocation from intel_cpufreq_verify_policy() (which also reduces the code size by a few lines). This change does not affect the per-CPU limits case, because those limits allow any P-state to be set by default in the passive mode and it removes the only piece of code updating them in that mode, so the per-policy settings will be the only ones taken into account in that case as expected. Fixes: 001c76f05b01 (cpufreq: intel_pstate: Generic governors support) Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 7fc1f8a0ef44..04b2aa162276 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2306,7 +2306,6 @@ static struct cpufreq_driver intel_pstate = { static int intel_cpufreq_verify_policy(struct cpufreq_policy *policy) { struct cpudata *cpu = all_cpu_data[policy->cpu]; - struct perf_limits *perf_limits = limits; update_turbo_state(); policy->cpuinfo.max_freq = limits->turbo_disabled ? @@ -2314,15 +2313,6 @@ static int intel_cpufreq_verify_policy(struct cpufreq_policy *policy) cpufreq_verify_within_cpu_limits(policy); - if (per_cpu_limits) - perf_limits = cpu->perf_limits; - - mutex_lock(&intel_pstate_limits_lock); - - intel_pstate_update_perf_limits(policy, perf_limits); - - mutex_unlock(&intel_pstate_limits_lock); - return 0; } -- cgit From 6407829901f074cf6beef566d6af9a0b0e238f0d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 3 Mar 2017 23:51:31 +0100 Subject: cpufreq: intel_pstate: Avoid triggering cpu_frequency tracepoint unnecessarily In the passive mode the cpu_frequency trace event is already triggered by the cpufreq core or by scaling governors, so intel_pstate should not trigger it once again for the same P-state updates. In addition to that, the frequency returned by intel_cpufreq_fast_switch() and passed via freqs.new from intel_cpufreq_target() to cpufreq_freq_transition_end() should reflect the P-state actually set, so make that happen. Fixes: 001c76f05b01 (cpufreq: intel_pstate: Generic governors support) Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 04b2aa162276..5e066b332598 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -1879,13 +1879,11 @@ static int intel_pstate_prepare_request(struct cpudata *cpu, int pstate) intel_pstate_get_min_max(cpu, &min_perf, &max_perf); pstate = clamp_t(int, pstate, min_perf, max_perf); - trace_cpu_frequency(pstate * cpu->pstate.scaling, cpu->cpu); return pstate; } static void intel_pstate_update_pstate(struct cpudata *cpu, int pstate) { - pstate = intel_pstate_prepare_request(cpu, pstate); if (pstate == cpu->pstate.current_pstate) return; @@ -1905,6 +1903,8 @@ static inline void intel_pstate_adjust_busy_pstate(struct cpudata *cpu) update_turbo_state(); + target_pstate = intel_pstate_prepare_request(cpu, target_pstate); + trace_cpu_frequency(target_pstate * cpu->pstate.scaling, cpu->cpu); intel_pstate_update_pstate(cpu, target_pstate); sample = &cpu->sample; @@ -2365,6 +2365,7 @@ static int intel_cpufreq_target(struct cpufreq_policy *policy, wrmsrl_on_cpu(policy->cpu, MSR_IA32_PERF_CTL, pstate_funcs.get_val(cpu, target_pstate)); } + freqs.new = target_pstate * cpu->pstate.scaling; cpufreq_freq_transition_end(policy, &freqs, false); return 0; @@ -2378,8 +2379,9 @@ static unsigned int intel_cpufreq_fast_switch(struct cpufreq_policy *policy, target_freq = intel_cpufreq_turbo_update(cpu, policy, target_freq); target_pstate = DIV_ROUND_UP(target_freq, cpu->pstate.scaling); + target_pstate = intel_pstate_prepare_request(cpu, target_pstate); intel_pstate_update_pstate(cpu, target_pstate); - return target_freq; + return target_pstate * cpu->pstate.scaling; } static int intel_cpufreq_cpu_init(struct cpufreq_policy *policy) -- cgit From d82f26925599cae83c38d17d07ae982356e81318 Mon Sep 17 00:00:00 2001 From: Len Brown Date: Tue, 28 Feb 2017 16:44:16 -0500 Subject: cpufreq: Add the "cpufreq.off=1" cmdline option Add the "cpufreq.off=1" cmdline option. At boot-time, this allows a user to request CONFIG_CPU_FREQ=n behavior from a kernel built with CONFIG_CPU_FREQ=y. This is analogous to the existing "cpuidle.off=1" option and CONFIG_CPU_IDLE=y This capability is valuable when we need to debug end-user issues in the BIOS or in Linux. It is also convenient for enabling comparisons, which may otherwise require a new kernel, or help from BIOS SETUP, which may be buggy or unavailable. Signed-off-by: Len Brown Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/cpufreq.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 80a785ad17e8..7790db2645d7 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -2532,4 +2532,5 @@ static int __init cpufreq_core_init(void) return 0; } +module_param(off, int, 0444); core_initcall(cpufreq_core_init); -- cgit From cd59b4bed9d11a2aefc4bb44eed9de0e6c1eea06 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 1 Mar 2017 00:07:36 +0100 Subject: cpufreq: intel_pstate: Fix global settings in active mode Commit 111b8b3fe4fa (cpufreq: intel_pstate: Always keep all limits settings in sync) changed intel_pstate to invoke cpufreq_update_policy() for every registered CPU on global sysfs attributes updates, but that led to undesirable effects in the active mode if the "performance" P-state selection algorithm is configufred for one CPU and the "powersave" one is chosen for all of the other CPUs. Namely, in that case, the following is possible: # cd /sys/devices/system/cpu/ # cat intel_pstate/max_perf_pct 100 # cat intel_pstate/min_perf_pct 26 # echo performance > cpufreq/policy0/scaling_governor # cat intel_pstate/max_perf_pct 100 # cat intel_pstate/min_perf_pct 100 # echo 94 > intel_pstate/min_perf_pct # cat intel_pstate/min_perf_pct 26 The reason why this happens is because intel_pstate attempts to maintain two sets of global limits in the active mode, one for the "performance" P-state selection algorithm and one for the "powersave" P-state selection algorithm, but the P-state selection algorithms are set per policy, so the global limits cannot reflect all of them at the same time if they are different for different policies. In the particular situation above, the attempt to change min_perf_pct to 94 caused cpufreq_update_policy() to be run for a CPU with the "powersave" P-state selection algorithm and intel_pstate_set_policy() called by it silently switched the global limits to the "powersave" set which finally was reflected by the sysfs interface. To prevent that from happening, modify intel_pstate_update_policies() to always switch back to the set of limits that was used right before it has been invoked. Fixes: 111b8b3fe4fa (cpufreq: intel_pstate: Always keep all limits settings in sync) Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 5e066b332598..436a4c5ba70d 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -973,11 +973,20 @@ static int intel_pstate_resume(struct cpufreq_policy *policy) } static void intel_pstate_update_policies(void) + __releases(&intel_pstate_limits_lock) + __acquires(&intel_pstate_limits_lock) { + struct perf_limits *saved_limits = limits; int cpu; + mutex_unlock(&intel_pstate_limits_lock); + for_each_possible_cpu(cpu) cpufreq_update_policy(cpu); + + mutex_lock(&intel_pstate_limits_lock); + + limits = saved_limits; } /************************** debugfs begin ************************/ @@ -1185,10 +1194,10 @@ static ssize_t store_no_turbo(struct kobject *a, struct attribute *b, limits->no_turbo = clamp_t(int, input, 0, 1); - mutex_unlock(&intel_pstate_limits_lock); - intel_pstate_update_policies(); + mutex_unlock(&intel_pstate_limits_lock); + mutex_unlock(&intel_pstate_driver_lock); return count; @@ -1222,10 +1231,10 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b, limits->max_perf_pct); limits->max_perf = div_ext_fp(limits->max_perf_pct, 100); - mutex_unlock(&intel_pstate_limits_lock); - intel_pstate_update_policies(); + mutex_unlock(&intel_pstate_limits_lock); + mutex_unlock(&intel_pstate_driver_lock); return count; @@ -1259,10 +1268,10 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b, limits->min_perf_pct); limits->min_perf = div_ext_fp(limits->min_perf_pct, 100); - mutex_unlock(&intel_pstate_limits_lock); - intel_pstate_update_policies(); + mutex_unlock(&intel_pstate_limits_lock); + mutex_unlock(&intel_pstate_driver_lock); return count; -- cgit From d74b19929130c9b5395a497030dcf161353cd526 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 1 Mar 2017 00:11:05 +0100 Subject: cpufreq: intel_pstate: Fix intel_pstate_verify_policy() The code added to intel_pstate_verify_policy() by commit 1443ebbacfd7 (cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy) should use perf_limits instead of limits, because otherwise setting global limits via sysfs may affect policies inconsistently. For example, in the sequence of shell commands below, the scaling_min_freq attribute for policy1 and policy2 should be affected in the same way, because scaling_governor is set in the same way for both of them: # cat cpufreq/policy1/scaling_governor powersave # cat cpufreq/policy2/scaling_governor powersave # echo performance > cpufreq/policy0/scaling_governor # echo 94 > intel_pstate/min_perf_pct # cat cpufreq/policy0/scaling_min_freq 2914000 # cat cpufreq/policy1/scaling_min_freq 2914000 # cat cpufreq/policy2/scaling_min_freq 800000 The are affected differently, because intel_pstate_verify_policy() is invoked with limits set to &performance_limits (left behind by policy0) for policy1 and with limits set to &powersave_limits (left behind by policy1) for policy2. Since perf_limits is set to the set of limits matching the policy being updated, using it instead of limits fixes the inconsistency. Fixes: 1443ebbacfd7 (cpufreq: intel_pstate: Fix sysfs limits enforcement for performance policy) Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 436a4c5ba70d..3dc546601c88 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2212,9 +2212,9 @@ static int intel_pstate_verify_policy(struct cpufreq_policy *policy) unsigned int max_freq, min_freq; max_freq = policy->cpuinfo.max_freq * - limits->max_sysfs_pct / 100; + perf_limits->max_sysfs_pct / 100; min_freq = policy->cpuinfo.max_freq * - limits->min_sysfs_pct / 100; + perf_limits->min_sysfs_pct / 100; cpufreq_verify_within_limits(policy, min_freq, max_freq); } -- cgit From a240c4aa5d0f9c8bb0db380ab9c1ec1f68b923ad Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Thu, 2 Mar 2017 23:29:12 +0100 Subject: cpufreq: intel_pstate: Do not reinit performance limits in ->setpolicy If the current P-state selection algorithm is set to "performance" in intel_pstate_set_policy(), the limits may be initialized from scratch, but only if no_turbo is not set and the maximum frequency allowed for the given CPU (i.e. the policy object representing it) is at least equal to the max frequency supported by the CPU. In all of the other cases, the limits will not be updated. For example, the following can happen: # cat intel_pstate/status active # echo performance > cpufreq/policy0/scaling_governor # cat intel_pstate/min_perf_pct 100 # echo 94 > intel_pstate/min_perf_pct # cat intel_pstate/min_perf_pct 100 # cat cpufreq/policy0/scaling_max_freq 3100000 echo 3000000 > cpufreq/policy0/scaling_max_freq # cat intel_pstate/min_perf_pct 94 # echo 95 > intel_pstate/min_perf_pct # cat intel_pstate/min_perf_pct 95 That is confusing for two reasons. First, the initial attempt to change min_perf_pct to 94 seems to have no effect, even though setting the global limits should always work. Second, after changing scaling_max_freq for policy0 the global min_perf_pct attribute shows 94, even though it should have not been affected by that operation in principle. Moreover, the final attempt to change min_perf_pct to 95 worked as expected, because scaling_max_freq for the only policy with scaling_governor equal to "performance" was different from the maximum at that time. To make all that confusion go away, modify intel_pstate_set_policy() so that it doesn't reinitialize the limits at all. At the same time, change intel_pstate_set_performance_limits() to set min_sysfs_pct to 100 in the "performance" limits set so that switching the P-state selection algorithm to "performance" causes intel_pstate/min_perf_pct in sysfs to go to 100 (or whatever value min_sysfs_pct in the "performance" limits is set to later). That requires per-CPU limits to be initialized explicitly rather than by copying the global limits to avoid setting min_sysfs_pct in the per-CPU limits to 100. Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 3dc546601c88..f1f8fbe0b4c4 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -382,6 +382,7 @@ static void intel_pstate_set_performance_limits(struct perf_limits *limits) intel_pstate_init_limits(limits); limits->min_perf_pct = 100; limits->min_perf = int_ext_tofp(1); + limits->min_sysfs_pct = 100; } static DEFINE_MUTEX(intel_pstate_driver_lock); @@ -2146,16 +2147,11 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) mutex_lock(&intel_pstate_limits_lock); if (policy->policy == CPUFREQ_POLICY_PERFORMANCE) { + pr_debug("set performance\n"); if (!perf_limits) { limits = &performance_limits; perf_limits = limits; } - if (policy->max >= policy->cpuinfo.max_freq && - !limits->no_turbo) { - pr_debug("set performance\n"); - intel_pstate_set_performance_limits(perf_limits); - goto out; - } } else { pr_debug("set powersave\n"); if (!perf_limits) { @@ -2166,7 +2162,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy) } intel_pstate_update_perf_limits(policy, perf_limits); - out: + if (cpu->policy == CPUFREQ_POLICY_PERFORMANCE) { /* * NOHZ_FULL CPUs need this as the governor callback may not @@ -2257,13 +2253,8 @@ static int __intel_pstate_cpu_init(struct cpufreq_policy *policy) cpu = all_cpu_data[policy->cpu]; - /* - * We need sane value in the cpu->perf_limits, so inherit from global - * perf_limits limits, which are seeded with values based on the - * CONFIG_CPU_FREQ_DEFAULT_GOV_*, during boot up. - */ if (per_cpu_limits) - memcpy(cpu->perf_limits, limits, sizeof(struct perf_limits)); + intel_pstate_init_limits(cpu->perf_limits); policy->min = cpu->pstate.min_pstate * cpu->pstate.scaling; policy->max = cpu->pstate.turbo_pstate * cpu->pstate.scaling; -- cgit From 0878fff1f42c18e448ab5b8b4f6a3eb32365b5b6 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Sun, 5 Mar 2017 12:34:49 -0800 Subject: net: phy: Do not perform software reset for Generic PHY The Generic PHY driver is a catch-all PHY driver and it should preserve whatever prior initialization has been done by boot loader or firmware agents. For specific PHY device configuration it is expected that a specialized PHY driver would take over that role. Resetting the generic PHY was a bad idea that has lead to several complaints and downstream workarounds e.g: in OpenWrt/LEDE so restore the behavior prior to 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()"). Reported-by: Felix Fietkau Fixes: 87aa9f9c61ad ("net: phy: consolidate PHY reset in phy_init_hw()") Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/phy_device.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index daec6555f3b1..5198ccfa347f 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -1864,7 +1864,7 @@ static struct phy_driver genphy_driver[] = { .phy_id = 0xffffffff, .phy_id_mask = 0xffffffff, .name = "Generic PHY", - .soft_reset = genphy_soft_reset, + .soft_reset = genphy_no_soft_reset, .config_init = genphy_config_init, .features = PHY_GBIT_FEATURES | SUPPORTED_MII | SUPPORTED_AUI | SUPPORTED_FIBRE | -- cgit From 36fc579761b50784b63dafd0f2e796b659e0f5ee Mon Sep 17 00:00:00 2001 From: Tomeu Vizoso Date: Mon, 20 Feb 2017 16:25:45 +0100 Subject: drm/edid: Add EDID_QUIRK_FORCE_8BPC quirk for Rotel RSX-1058 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Rotel RSX-1058 is a receiver with 4 HDMI inputs and a HDMI output, all 1.1. When a sink that supports deep color is connected to the output, the receiver will send EDIDs that advertise this capability, even if it isn't possible with HDMI versions earlier than 1.3. Currently the kernel is assuming that deep color is possible and the sink displays an error. This quirk will make sure that deep color isn't used with this particular receiver. Fixes: 7a0baa623446 ("Revert "drm/i915: Disable 12bpc hdmi for now"") Signed-off-by: Tomeu Vizoso Link: http://patchwork.freedesktop.org/patch/msgid/20170220152545.13153-1-tomeu.vizoso@collabora.com Cc: stable@vger.kernel.org Cc: Matt Horan Tested-by: Matt Horan Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99869 Reviewed-by: Ville Syrjälä Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/drm_edid.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index c8baab9bee0d..ba58f1b11d1e 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -148,6 +148,9 @@ static const struct edid_quirk { /* Panel in Samsung NP700G7A-S01PL notebook reports 6bpc */ { "SEC", 0xd033, EDID_QUIRK_FORCE_8BPC }, + + /* Rotel RSX-1058 forwards sink's EDID but only does HDMI 1.1*/ + { "ETR", 13896, EDID_QUIRK_FORCE_8BPC }, }; /* -- cgit From 7369090a9fb57c3fc705ce355d2e4523a5a24716 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 31 Jan 2017 13:24:54 +0200 Subject: usb: dwc3: gadget: make Set Endpoint Configuration macros safe Some gadget drivers are bad, bad boys. We notice that ADB was passing bad Burst Size which caused top bits of param0 to be overwritten which confused DWC3 when running this command. In order to avoid future issues, we're going to make sure values passed by macros are always safe for the controller. Note that ADB still needs a fix to *not* pass bad values. Cc: # v3.2+ Reported-by: Mohamed Abbas Sugested-by: Adam Andruszak Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.h | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h index 3129bcf74d7d..265e223ab645 100644 --- a/drivers/usb/dwc3/gadget.h +++ b/drivers/usb/dwc3/gadget.h @@ -28,23 +28,23 @@ struct dwc3; #define gadget_to_dwc(g) (container_of(g, struct dwc3, gadget)) /* DEPCFG parameter 1 */ -#define DWC3_DEPCFG_INT_NUM(n) ((n) << 0) +#define DWC3_DEPCFG_INT_NUM(n) (((n) & 0x1f) << 0) #define DWC3_DEPCFG_XFER_COMPLETE_EN (1 << 8) #define DWC3_DEPCFG_XFER_IN_PROGRESS_EN (1 << 9) #define DWC3_DEPCFG_XFER_NOT_READY_EN (1 << 10) #define DWC3_DEPCFG_FIFO_ERROR_EN (1 << 11) #define DWC3_DEPCFG_STREAM_EVENT_EN (1 << 13) -#define DWC3_DEPCFG_BINTERVAL_M1(n) ((n) << 16) +#define DWC3_DEPCFG_BINTERVAL_M1(n) (((n) & 0xff) << 16) #define DWC3_DEPCFG_STREAM_CAPABLE (1 << 24) -#define DWC3_DEPCFG_EP_NUMBER(n) ((n) << 25) +#define DWC3_DEPCFG_EP_NUMBER(n) (((n) & 0x1f) << 25) #define DWC3_DEPCFG_BULK_BASED (1 << 30) #define DWC3_DEPCFG_FIFO_BASED (1 << 31) /* DEPCFG parameter 0 */ -#define DWC3_DEPCFG_EP_TYPE(n) ((n) << 1) -#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) ((n) << 3) -#define DWC3_DEPCFG_FIFO_NUMBER(n) ((n) << 17) -#define DWC3_DEPCFG_BURST_SIZE(n) ((n) << 22) +#define DWC3_DEPCFG_EP_TYPE(n) (((n) & 0x3) << 1) +#define DWC3_DEPCFG_MAX_PACKET_SIZE(n) (((n) & 0x7ff) << 3) +#define DWC3_DEPCFG_FIFO_NUMBER(n) (((n) & 0x1f) << 17) +#define DWC3_DEPCFG_BURST_SIZE(n) (((n) & 0xf) << 22) #define DWC3_DEPCFG_DATA_SEQ_NUM(n) ((n) << 26) /* This applies for core versions earlier than 1.94a */ #define DWC3_DEPCFG_IGN_SEQ_NUM (1 << 31) -- cgit From 2bfa0719ac2a9b2f3c91345873d3cdebd0296ba9 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Tue, 31 Jan 2017 14:54:45 +0200 Subject: usb: gadget: function: f_fs: pass companion descriptor along If we're dealing with SuperSpeed endpoints, we need to make sure to pass along the companion descriptor and initialize fields needed by the Gadget API. Eventually, f_fs.c should be converted to use config_ep_by_speed() like all other functions, though. Cc: Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_fs.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index a5b7cd615698..7e976f00cb02 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -1834,11 +1834,14 @@ static int ffs_func_eps_enable(struct ffs_function *func) spin_lock_irqsave(&func->ffs->eps_lock, flags); while(count--) { struct usb_endpoint_descriptor *ds; + struct usb_ss_ep_comp_descriptor *comp_desc = NULL; + int needs_comp_desc = false; int desc_idx; - if (ffs->gadget->speed == USB_SPEED_SUPER) + if (ffs->gadget->speed == USB_SPEED_SUPER) { desc_idx = 2; - else if (ffs->gadget->speed == USB_SPEED_HIGH) + needs_comp_desc = true; + } else if (ffs->gadget->speed == USB_SPEED_HIGH) desc_idx = 1; else desc_idx = 0; @@ -1855,6 +1858,14 @@ static int ffs_func_eps_enable(struct ffs_function *func) ep->ep->driver_data = ep; ep->ep->desc = ds; + + comp_desc = (struct usb_ss_ep_comp_descriptor *)(ds + + USB_DT_ENDPOINT_SIZE); + ep->ep->maxburst = comp_desc->bMaxBurst + 1; + + if (needs_comp_desc) + ep->ep->comp_desc = comp_desc; + ret = usb_ep_enable(ep->ep); if (likely(!ret)) { epfile->ep = ep; -- cgit From cf3113d893d4427b166ec8695460efa7aa660923 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Fri, 17 Feb 2017 11:12:44 +0200 Subject: usb: dwc3: gadget: properly increment dequeue pointer on ep_dequeue If request was already started, this means we had to stop the transfer. With that we also need to ignore all TRBs used by the request, however TRBs can only be modified after completion of END_TRANSFER command. So what we have to do here is wait for END_TRANSFER completion and only after that jump over TRBs by clearing HWO and incrementing dequeue pointer. Note that we have 2 possible types of transfers here: i) Linear buffer request ii) SG-list based request SG-list based requests will have r->num_pending_sgs set to a valid number (> 0). Linear requests, normally use a single TRB. For each of these two cases, if r->unaligned flag is set, one extra TRB has been used to align transfer size to wMaxPacketSize. All of these cases need to be taken into consideration so we don't mess up our TRB ring pointers. Tested-by: Janusz Dziedzic Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 63 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 4db97ecae885..f875b3f4b0ec 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1342,6 +1342,68 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, if (r == req) { /* wait until it is processed */ dwc3_stop_active_transfer(dwc, dep->number, true); + + /* + * If request was already started, this means we had to + * stop the transfer. With that we also need to ignore + * all TRBs used by the request, however TRBs can only + * be modified after completion of END_TRANSFER + * command. So what we do here is that we wait for + * END_TRANSFER completion and only after that, we jump + * over TRBs by clearing HWO and incrementing dequeue + * pointer. + * + * Note that we have 2 possible types of transfers here: + * + * i) Linear buffer request + * ii) SG-list based request + * + * SG-list based requests will have r->num_pending_sgs + * set to a valid number (> 0). Linear requests, + * normally use a single TRB. + * + * For each of these two cases, if r->unaligned flag is + * set, one extra TRB has been used to align transfer + * size to wMaxPacketSize. + * + * All of these cases need to be taken into + * consideration so we don't mess up our TRB ring + * pointers. + */ + wait_event_lock_irq(dep->wait_end_transfer, + !(dep->flags & DWC3_EP_END_TRANSFER_PENDING), + dwc->lock); + + if (!r->trb) + goto out1; + + if (r->num_pending_sgs) { + struct dwc3_trb *trb; + int i = 0; + + for (i = 0; i < r->num_pending_sgs; i++) { + trb = r->trb + i; + trb->ctrl &= ~DWC3_TRB_CTRL_HWO; + dwc3_ep_inc_deq(dep); + } + + if (r->unaligned) { + trb = r->trb + r->num_pending_sgs + 1; + trb->ctrl &= ~DWC3_TRB_CTRL_HWO; + dwc3_ep_inc_deq(dep); + } + } else { + struct dwc3_trb *trb = r->trb; + + trb->ctrl &= ~DWC3_TRB_CTRL_HWO; + dwc3_ep_inc_deq(dep); + + if (r->unaligned) { + trb = r->trb + 1; + trb->ctrl &= ~DWC3_TRB_CTRL_HWO; + dwc3_ep_inc_deq(dep); + } + } goto out1; } dev_err(dwc->dev, "request %p was not queued to %s\n", @@ -1352,6 +1414,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, out1: /* giveback the request */ + dep->queued_requests--; dwc3_gadget_giveback(dep, req, -ECONNRESET); out0: -- cgit From 2e46565cf622dd0534a9d8bffe152a577b48d7aa Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 24 Feb 2017 19:11:28 +0100 Subject: USB: serial: digi_acceleport: fix OOB-event processing A recent change claimed to fix an off-by-one error in the OOB-port completion handler, but instead introduced such an error. This could specifically led to modem-status changes going unnoticed, effectively breaking TIOCMGET. Note that the offending commit fixes a loop-condition underflow and is marked for stable, but should not be backported without this fix. Reported-by: Ben Hutchings Fixes: 2d380889215f ("USB: serial: digi_acceleport: fix OOB data sanity check") Cc: stable # v2.6.30: 2d380889215f Signed-off-by: Johan Hovold --- drivers/usb/serial/digi_acceleport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index ab78111e0968..6537d3ca2797 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -1500,7 +1500,7 @@ static int digi_read_oob_callback(struct urb *urb) return -1; /* handle each oob command */ - for (i = 0; i < urb->actual_length - 4; i += 4) { + for (i = 0; i < urb->actual_length - 3; i += 4) { opcode = buf[i]; line = buf[i + 1]; status = buf[i + 2]; -- cgit From 8f1117abb408808af9cc4c948925c726bec4755a Mon Sep 17 00:00:00 2001 From: Chuanxiao Dong Date: Mon, 6 Mar 2017 13:05:24 +0800 Subject: drm/i915/gvt: handle workload lifecycle properly Currently i915 has a request replay mechanism which can make sure the request can be replayed after a GPU reset. With this mechanism, gvt should wait until the GVT request seqno passed before complete the current workload. So that there should be a context switch interrupt come before gvt free the workload. In this way, workload lifecylce matches with the i915 request lifecycle. The workload can only be freed after the request is completed. v2: use gvt_dbg_sched instead of gvt_err to print when wait again Signed-off-by: Chuanxiao Dong Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/scheduler.c | 49 ++++++++++++++++++++++++------------ 1 file changed, 33 insertions(+), 16 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/scheduler.c b/drivers/gpu/drm/i915/gvt/scheduler.c index e355a82ccabd..d3a56c949025 100644 --- a/drivers/gpu/drm/i915/gvt/scheduler.c +++ b/drivers/gpu/drm/i915/gvt/scheduler.c @@ -151,6 +151,15 @@ static int shadow_context_status_change(struct notifier_block *nb, case INTEL_CONTEXT_SCHEDULE_OUT: intel_gvt_restore_render_mmio(workload->vgpu, workload->ring_id); + /* If the status is -EINPROGRESS means this workload + * doesn't meet any issue during dispatching so when + * get the SCHEDULE_OUT set the status to be zero for + * good. If the status is NOT -EINPROGRESS means there + * is something wrong happened during dispatching and + * the status should not be set to zero + */ + if (workload->status == -EINPROGRESS) + workload->status = 0; atomic_set(&workload->shadow_ctx_active, 0); break; default: @@ -362,15 +371,23 @@ static void complete_current_workload(struct intel_gvt *gvt, int ring_id) workload = scheduler->current_workload[ring_id]; vgpu = workload->vgpu; - if (!workload->status && !vgpu->resetting) { + /* For the workload w/ request, needs to wait for the context + * switch to make sure request is completed. + * For the workload w/o request, directly complete the workload. + */ + if (workload->req) { wait_event(workload->shadow_ctx_status_wq, !atomic_read(&workload->shadow_ctx_active)); - update_guest_context(workload); + i915_gem_request_put(fetch_and_zero(&workload->req)); - for_each_set_bit(event, workload->pending_events, - INTEL_GVT_EVENT_MAX) - intel_vgpu_trigger_virtual_event(vgpu, event); + if (!workload->status && !vgpu->resetting) { + update_guest_context(workload); + + for_each_set_bit(event, workload->pending_events, + INTEL_GVT_EVENT_MAX) + intel_vgpu_trigger_virtual_event(vgpu, event); + } } gvt_dbg_sched("ring id %d complete workload %p status %d\n", @@ -400,7 +417,6 @@ static int workload_thread(void *priv) int ring_id = p->ring_id; struct intel_gvt_workload_scheduler *scheduler = &gvt->scheduler; struct intel_vgpu_workload *workload = NULL; - long lret; int ret; bool need_force_wake = IS_SKYLAKE(gvt->dev_priv); DEFINE_WAIT_FUNC(wait, woken_wake_function); @@ -449,23 +465,24 @@ static int workload_thread(void *priv) gvt_dbg_sched("ring id %d wait workload %p\n", workload->ring_id, workload); - - lret = i915_wait_request(workload->req, +retry: + i915_wait_request(workload->req, 0, MAX_SCHEDULE_TIMEOUT); - if (lret < 0) { - workload->status = lret; - gvt_err("fail to wait workload, skip\n"); - } else { - workload->status = 0; + /* I915 has replay mechanism and a request will be replayed + * if there is i915 reset. So the seqno will be updated anyway. + * If the seqno is not updated yet after waiting, which means + * the replay may still be in progress and we can wait again. + */ + if (!i915_gem_request_completed(workload->req)) { + gvt_dbg_sched("workload %p not completed, wait again\n", + workload); + goto retry; } complete: gvt_dbg_sched("will complete workload %p, status: %d\n", workload, workload->status); - if (workload->req) - i915_gem_request_put(fetch_and_zero(&workload->req)); - complete_current_workload(gvt, ring_id); if (need_force_wake) -- cgit From c2e04fdab33181b53b5a2f9662b7b607b720f79f Mon Sep 17 00:00:00 2001 From: Changbin Du Date: Mon, 6 Mar 2017 17:08:30 +0800 Subject: drm/i915/gvt: protect RO and Rsvd bits of virtual vgpu configuration space Per PCI specification, Configuration Register has different types (RO, RW, RW1C, Rsvd). For RO Register bits are read-only and cannot be altered by software. For RW1C Register bits indicate status when read. A Set bit indicates a status event which is Cleared by writing a 1b. Writing a 0b to RW1C bits has no effect. Reserved Register is for future implementations, and they are read-only and must return zero when read. Current vGPU configuration write emulation just copy the value as it is. So we haven't emulated RO, RW1C and Rsvd Registers correctly. This patch is following the Spec to correct emulation logic. We add a function vgpu_cfg_mem_write to wrap the access to vGPU configuration memory. The write function uses a RW Register bitmap to avoid RO bits be overwritten, and emulate RW1C behavior for the particular status Register. v2: new = src[i] --> new = src[i] & mask (zhenyu) Signed-off-by: Changbin Du Cc: Xiaoguang Chen Cc: Zhiyuan Lv Cc: Min He Reviewed-by: Zhenyu Wang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/cfg_space.c | 54 ++++++++++++++++++++++++++++++++++-- 1 file changed, 51 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/cfg_space.c b/drivers/gpu/drm/i915/gvt/cfg_space.c index a77e050b85a3..b7d7721e72fa 100644 --- a/drivers/gpu/drm/i915/gvt/cfg_space.c +++ b/drivers/gpu/drm/i915/gvt/cfg_space.c @@ -41,6 +41,54 @@ enum { INTEL_GVT_PCI_BAR_MAX, }; +/* bitmap for writable bits (RW or RW1C bits, but cannot co-exist in one + * byte) byte by byte in standard pci configuration space. (not the full + * 256 bytes.) + */ +static const u8 pci_cfg_space_rw_bmp[PCI_INTERRUPT_LINE + 4] = { + [PCI_COMMAND] = 0xff, 0x07, + [PCI_STATUS] = 0x00, 0xf9, /* the only one RW1C byte */ + [PCI_CACHE_LINE_SIZE] = 0xff, + [PCI_BASE_ADDRESS_0 ... PCI_CARDBUS_CIS - 1] = 0xff, + [PCI_ROM_ADDRESS] = 0x01, 0xf8, 0xff, 0xff, + [PCI_INTERRUPT_LINE] = 0xff, +}; + +/** + * vgpu_pci_cfg_mem_write - write virtual cfg space memory + * + * Use this function to write virtual cfg space memory. + * For standard cfg space, only RW bits can be changed, + * and we emulates the RW1C behavior of PCI_STATUS register. + */ +static void vgpu_pci_cfg_mem_write(struct intel_vgpu *vgpu, unsigned int off, + u8 *src, unsigned int bytes) +{ + u8 *cfg_base = vgpu_cfg_space(vgpu); + u8 mask, new, old; + int i = 0; + + for (; i < bytes && (off + i < sizeof(pci_cfg_space_rw_bmp)); i++) { + mask = pci_cfg_space_rw_bmp[off + i]; + old = cfg_base[off + i]; + new = src[i] & mask; + + /** + * The PCI_STATUS high byte has RW1C bits, here + * emulates clear by writing 1 for these bits. + * Writing a 0b to RW1C bits has no effect. + */ + if (off + i == PCI_STATUS + 1) + new = (~new & old) & mask; + + cfg_base[off + i] = (old & ~mask) | new; + } + + /* For other configuration space directly copy as it is. */ + if (i < bytes) + memcpy(cfg_base + off + i, src + i, bytes - i); +} + /** * intel_vgpu_emulate_cfg_read - emulate vGPU configuration space read * @@ -123,7 +171,7 @@ static int emulate_pci_command_write(struct intel_vgpu *vgpu, u8 changed = old ^ new; int ret; - memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes); + vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes); if (!(changed & PCI_COMMAND_MEMORY)) return 0; @@ -277,10 +325,10 @@ int intel_vgpu_emulate_cfg_write(struct intel_vgpu *vgpu, unsigned int offset, if (ret) return ret; - memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes); + vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes); break; default: - memcpy(vgpu_cfg_space(vgpu) + offset, p_data, bytes); + vgpu_pci_cfg_mem_write(vgpu, offset, p_data, bytes); break; } return 0; -- cgit From 606142af57dad981b78707234cfbd15f9f7b7125 Mon Sep 17 00:00:00 2001 From: Jonathan McDowell Date: Wed, 15 Feb 2017 18:29:15 -0200 Subject: [media] dw2102: don't do DMA on stack On Kernel 4.9, WARNINGs about doing DMA on stack are hit at the dw2102 driver: one in su3000_power_ctrl() and the other in tt_s2_4600_frontend_attach(). Both were due to the use of buffers on the stack as parameters to dvb_usb_generic_rw() and the resulting attempt to do DMA with them. The device was non-functional as a result. So, switch this driver over to use a buffer within the device state structure, as has been done with other DVB-USB drivers. Tested with TechnoTrend TT-connect S2-4600. [mchehab@osg.samsung.com: fixed a warning at su3000_i2c_transfer() that state var were dereferenced before check 'd'] Signed-off-by: Jonathan McDowell Cc: Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/dvb-usb/dw2102.c | 244 ++++++++++++++++++++++--------------- 1 file changed, 145 insertions(+), 99 deletions(-) (limited to 'drivers') diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c index 6ca502d834b4..4f42d57f81d9 100644 --- a/drivers/media/usb/dvb-usb/dw2102.c +++ b/drivers/media/usb/dvb-usb/dw2102.c @@ -68,6 +68,7 @@ struct dw2102_state { u8 initialized; u8 last_lock; + u8 data[MAX_XFER_SIZE + 4]; struct i2c_client *i2c_client_demod; struct i2c_client *i2c_client_tuner; @@ -661,62 +662,72 @@ static int su3000_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], int num) { struct dvb_usb_device *d = i2c_get_adapdata(adap); - u8 obuf[0x40], ibuf[0x40]; + struct dw2102_state *state; if (!d) return -ENODEV; + + state = d->priv; + if (mutex_lock_interruptible(&d->i2c_mutex) < 0) return -EAGAIN; + if (mutex_lock_interruptible(&d->data_mutex) < 0) { + mutex_unlock(&d->i2c_mutex); + return -EAGAIN; + } switch (num) { case 1: switch (msg[0].addr) { case SU3000_STREAM_CTRL: - obuf[0] = msg[0].buf[0] + 0x36; - obuf[1] = 3; - obuf[2] = 0; - if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 0, 0) < 0) + state->data[0] = msg[0].buf[0] + 0x36; + state->data[1] = 3; + state->data[2] = 0; + if (dvb_usb_generic_rw(d, state->data, 3, + state->data, 0, 0) < 0) err("i2c transfer failed."); break; case DW2102_RC_QUERY: - obuf[0] = 0x10; - if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 2, 0) < 0) + state->data[0] = 0x10; + if (dvb_usb_generic_rw(d, state->data, 1, + state->data, 2, 0) < 0) err("i2c transfer failed."); - msg[0].buf[1] = ibuf[0]; - msg[0].buf[0] = ibuf[1]; + msg[0].buf[1] = state->data[0]; + msg[0].buf[0] = state->data[1]; break; default: /* always i2c write*/ - obuf[0] = 0x08; - obuf[1] = msg[0].addr; - obuf[2] = msg[0].len; + state->data[0] = 0x08; + state->data[1] = msg[0].addr; + state->data[2] = msg[0].len; - memcpy(&obuf[3], msg[0].buf, msg[0].len); + memcpy(&state->data[3], msg[0].buf, msg[0].len); - if (dvb_usb_generic_rw(d, obuf, msg[0].len + 3, - ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, msg[0].len + 3, + state->data, 1, 0) < 0) err("i2c transfer failed."); } break; case 2: /* always i2c read */ - obuf[0] = 0x09; - obuf[1] = msg[0].len; - obuf[2] = msg[1].len; - obuf[3] = msg[0].addr; - memcpy(&obuf[4], msg[0].buf, msg[0].len); - - if (dvb_usb_generic_rw(d, obuf, msg[0].len + 4, - ibuf, msg[1].len + 1, 0) < 0) + state->data[0] = 0x09; + state->data[1] = msg[0].len; + state->data[2] = msg[1].len; + state->data[3] = msg[0].addr; + memcpy(&state->data[4], msg[0].buf, msg[0].len); + + if (dvb_usb_generic_rw(d, state->data, msg[0].len + 4, + state->data, msg[1].len + 1, 0) < 0) err("i2c transfer failed."); - memcpy(msg[1].buf, &ibuf[1], msg[1].len); + memcpy(msg[1].buf, &state->data[1], msg[1].len); break; default: warn("more than 2 i2c messages at a time is not handled yet."); break; } + mutex_unlock(&d->data_mutex); mutex_unlock(&d->i2c_mutex); return num; } @@ -844,17 +855,23 @@ static int su3000_streaming_ctrl(struct dvb_usb_adapter *adap, int onoff) static int su3000_power_ctrl(struct dvb_usb_device *d, int i) { struct dw2102_state *state = (struct dw2102_state *)d->priv; - u8 obuf[] = {0xde, 0}; + int ret = 0; info("%s: %d, initialized %d", __func__, i, state->initialized); if (i && !state->initialized) { + mutex_lock(&d->data_mutex); + + state->data[0] = 0xde; + state->data[1] = 0; + state->initialized = 1; /* reset board */ - return dvb_usb_generic_rw(d, obuf, 2, NULL, 0, 0); + ret = dvb_usb_generic_rw(d, state->data, 2, NULL, 0, 0); + mutex_unlock(&d->data_mutex); } - return 0; + return ret; } static int su3000_read_mac_address(struct dvb_usb_device *d, u8 mac[6]) @@ -1309,49 +1326,57 @@ static int prof_7500_frontend_attach(struct dvb_usb_adapter *d) return 0; } -static int su3000_frontend_attach(struct dvb_usb_adapter *d) +static int su3000_frontend_attach(struct dvb_usb_adapter *adap) { - u8 obuf[3] = { 0xe, 0x80, 0 }; - u8 ibuf[] = { 0 }; + struct dvb_usb_device *d = adap->dev; + struct dw2102_state *state = d->priv; + + mutex_lock(&d->data_mutex); + + state->data[0] = 0xe; + state->data[1] = 0x80; + state->data[2] = 0; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x02; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x02; + state->data[2] = 1; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); msleep(300); - obuf[0] = 0xe; - obuf[1] = 0x83; - obuf[2] = 0; + state->data[0] = 0xe; + state->data[1] = 0x83; + state->data[2] = 0; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x83; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x83; + state->data[2] = 1; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0x51; + state->data[0] = 0x51; - if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0) err("command 0x51 transfer failed."); - d->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config, - &d->dev->i2c_adap); - if (d->fe_adap[0].fe == NULL) + mutex_unlock(&d->data_mutex); + + adap->fe_adap[0].fe = dvb_attach(ds3000_attach, &su3000_ds3000_config, + &d->i2c_adap); + if (adap->fe_adap[0].fe == NULL) return -EIO; - if (dvb_attach(ts2020_attach, d->fe_adap[0].fe, + if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe, &dw2104_ts2020_config, - &d->dev->i2c_adap)) { + &d->i2c_adap)) { info("Attached DS3000/TS2020!"); return 0; } @@ -1360,47 +1385,55 @@ static int su3000_frontend_attach(struct dvb_usb_adapter *d) return -EIO; } -static int t220_frontend_attach(struct dvb_usb_adapter *d) +static int t220_frontend_attach(struct dvb_usb_adapter *adap) { - u8 obuf[3] = { 0xe, 0x87, 0 }; - u8 ibuf[] = { 0 }; + struct dvb_usb_device *d = adap->dev; + struct dw2102_state *state = d->priv; + + mutex_lock(&d->data_mutex); - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + state->data[0] = 0xe; + state->data[1] = 0x87; + state->data[2] = 0x0; + + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x86; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x86; + state->data[2] = 1; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x80; - obuf[2] = 0; + state->data[0] = 0xe; + state->data[1] = 0x80; + state->data[2] = 0; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); msleep(50); - obuf[0] = 0xe; - obuf[1] = 0x80; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x80; + state->data[2] = 1; - if (dvb_usb_generic_rw(d->dev, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0x51; + state->data[0] = 0x51; - if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0) err("command 0x51 transfer failed."); - d->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config, - &d->dev->i2c_adap, NULL); - if (d->fe_adap[0].fe != NULL) { - if (dvb_attach(tda18271_attach, d->fe_adap[0].fe, 0x60, - &d->dev->i2c_adap, &tda18271_config)) { + mutex_unlock(&d->data_mutex); + + adap->fe_adap[0].fe = dvb_attach(cxd2820r_attach, &cxd2820r_config, + &d->i2c_adap, NULL); + if (adap->fe_adap[0].fe != NULL) { + if (dvb_attach(tda18271_attach, adap->fe_adap[0].fe, 0x60, + &d->i2c_adap, &tda18271_config)) { info("Attached TDA18271HD/CXD2820R!"); return 0; } @@ -1410,23 +1443,30 @@ static int t220_frontend_attach(struct dvb_usb_adapter *d) return -EIO; } -static int m88rs2000_frontend_attach(struct dvb_usb_adapter *d) +static int m88rs2000_frontend_attach(struct dvb_usb_adapter *adap) { - u8 obuf[] = { 0x51 }; - u8 ibuf[] = { 0 }; + struct dvb_usb_device *d = adap->dev; + struct dw2102_state *state = d->priv; + + mutex_lock(&d->data_mutex); - if (dvb_usb_generic_rw(d->dev, obuf, 1, ibuf, 1, 0) < 0) + state->data[0] = 0x51; + + if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0) err("command 0x51 transfer failed."); - d->fe_adap[0].fe = dvb_attach(m88rs2000_attach, &s421_m88rs2000_config, - &d->dev->i2c_adap); + mutex_unlock(&d->data_mutex); - if (d->fe_adap[0].fe == NULL) + adap->fe_adap[0].fe = dvb_attach(m88rs2000_attach, + &s421_m88rs2000_config, + &d->i2c_adap); + + if (adap->fe_adap[0].fe == NULL) return -EIO; - if (dvb_attach(ts2020_attach, d->fe_adap[0].fe, + if (dvb_attach(ts2020_attach, adap->fe_adap[0].fe, &dw2104_ts2020_config, - &d->dev->i2c_adap)) { + &d->i2c_adap)) { info("Attached RS2000/TS2020!"); return 0; } @@ -1439,44 +1479,50 @@ static int tt_s2_4600_frontend_attach(struct dvb_usb_adapter *adap) { struct dvb_usb_device *d = adap->dev; struct dw2102_state *state = d->priv; - u8 obuf[3] = { 0xe, 0x80, 0 }; - u8 ibuf[] = { 0 }; struct i2c_adapter *i2c_adapter; struct i2c_client *client; struct i2c_board_info board_info; struct m88ds3103_platform_data m88ds3103_pdata = {}; struct ts2020_config ts2020_config = {}; - if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0) + mutex_lock(&d->data_mutex); + + state->data[0] = 0xe; + state->data[1] = 0x80; + state->data[2] = 0x0; + + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x02; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x02; + state->data[2] = 1; - if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); msleep(300); - obuf[0] = 0xe; - obuf[1] = 0x83; - obuf[2] = 0; + state->data[0] = 0xe; + state->data[1] = 0x83; + state->data[2] = 0; - if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0xe; - obuf[1] = 0x83; - obuf[2] = 1; + state->data[0] = 0xe; + state->data[1] = 0x83; + state->data[2] = 1; - if (dvb_usb_generic_rw(d, obuf, 3, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 3, state->data, 1, 0) < 0) err("command 0x0e transfer failed."); - obuf[0] = 0x51; + state->data[0] = 0x51; - if (dvb_usb_generic_rw(d, obuf, 1, ibuf, 1, 0) < 0) + if (dvb_usb_generic_rw(d, state->data, 1, state->data, 1, 0) < 0) err("command 0x51 transfer failed."); + mutex_unlock(&d->data_mutex); + /* attach demod */ m88ds3103_pdata.clk = 27000000; m88ds3103_pdata.i2c_wr_max = 33; -- cgit From 8e51533780ba223a3562ff4382c6b6f350c7e9a4 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Fri, 10 Feb 2017 17:21:00 -0600 Subject: pinctrl: qcom: add get_direction function The get_direction callback function allows gpiolib to know the current direction (input vs output) for a given GPIO. This is particularly useful on ACPI systems, where the GPIOs are configured only by firmware (typically UEFI), so the only way to know the initial values to query the hardware directly. Without this function, gpiolib thinks that all GPIOs are configured for input. Signed-off-by: Timur Tabi Signed-off-by: Linus Walleij --- drivers/pinctrl/qcom/pinctrl-msm.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index f8e9e1c2b2f6..c978be5eb9eb 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -422,6 +422,20 @@ static int msm_gpio_direction_output(struct gpio_chip *chip, unsigned offset, in return 0; } +static int msm_gpio_get_direction(struct gpio_chip *chip, unsigned int offset) +{ + struct msm_pinctrl *pctrl = gpiochip_get_data(chip); + const struct msm_pingroup *g; + u32 val; + + g = &pctrl->soc->groups[offset]; + + val = readl(pctrl->regs + g->ctl_reg); + + /* 0 = output, 1 = input */ + return val & BIT(g->oe_bit) ? 0 : 1; +} + static int msm_gpio_get(struct gpio_chip *chip, unsigned offset) { const struct msm_pingroup *g; @@ -510,6 +524,7 @@ static void msm_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) static struct gpio_chip msm_gpio_template = { .direction_input = msm_gpio_direction_input, .direction_output = msm_gpio_direction_output, + .get_direction = msm_gpio_get_direction, .get = msm_gpio_get, .set = msm_gpio_set, .request = gpiochip_generic_request, -- cgit From 96e1ce8fcd66d850196758c038bd9d6f7857c518 Mon Sep 17 00:00:00 2001 From: Kunihiko Hayashi Date: Mon, 20 Feb 2017 21:00:42 +0900 Subject: pinctrl: uniphier: change pin names of aio/xirq for LD11 This patch changes pin names of AIO and XIRQ according to updated specification. Signed-off-by: Kunihiko Hayashi Acked-by: Masahiro Yamada Signed-off-by: Linus Walleij --- drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c index 77a0236ee781..83f8864fa76a 100644 --- a/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c +++ b/drivers/pinctrl/uniphier/pinctrl-uniphier-ld11.c @@ -390,22 +390,22 @@ static const struct pinctrl_pin_desc uniphier_ld11_pins[] = { UNIPHIER_PINCTRL_PIN(140, "AO1D0", 140, 140, UNIPHIER_PIN_DRV_1BIT, 140, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(141, "TCON0", 141, + UNIPHIER_PINCTRL_PIN(141, "AO1D1", 141, 141, UNIPHIER_PIN_DRV_1BIT, 141, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(142, "TCON1", 142, + UNIPHIER_PINCTRL_PIN(142, "AO1D2", 142, 142, UNIPHIER_PIN_DRV_1BIT, 142, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(143, "TCON2", 143, + UNIPHIER_PINCTRL_PIN(143, "XIRQ9", 143, 143, UNIPHIER_PIN_DRV_1BIT, 143, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(144, "TCON3", 144, + UNIPHIER_PINCTRL_PIN(144, "XIRQ10", 144, 144, UNIPHIER_PIN_DRV_1BIT, 144, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(145, "TCON4", 145, + UNIPHIER_PINCTRL_PIN(145, "XIRQ11", 145, 145, UNIPHIER_PIN_DRV_1BIT, 145, UNIPHIER_PIN_PULL_DOWN), - UNIPHIER_PINCTRL_PIN(146, "TCON5", 146, + UNIPHIER_PINCTRL_PIN(146, "XIRQ13", 146, 146, UNIPHIER_PIN_DRV_1BIT, 146, UNIPHIER_PIN_PULL_DOWN), UNIPHIER_PINCTRL_PIN(147, "PWMA", 147, -- cgit From b3bd0f2849f4480fc4f40bb954d27e58f4f0786b Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 1 Mar 2017 23:50:19 +0100 Subject: staging/vc04_services: add CONFIG_OF dependency After several hours of debugging this obviously bogus but elaborate gcc-7.0.1 warning, drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'vchiq_complete_bulk': drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:603:4: error: argument 2 null where non-null expected [-Werror=nonnull] memcpy((char *)page_address(pages[0]) + ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ pagelist->offset, ~~~~~~~~~~~~~~~~~ fragments, ~~~~~~~~~~ head_bytes); ~~~~~~~~~~~ In file included from include/linux/string.h:18:0, from include/linux/bitmap.h:8, from include/linux/cpumask.h:11, from include/linux/interrupt.h:9, from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:37: arch/arm/include/asm/string.h:16:15: note: in a call to function 'memcpy' declared here extern void * memcpy(void *, const void *, __kernel_size_t) __nocapture(2); ^~~~~~ I have concluded that gcc was technically right in the first place: vchiq_complete_bulk is an externally visible function that calls free_pagelist(), which in turn derives a pointer from the global g_fragments_base variable. g_fragments_base is initialized in vchiq_platform_init(), but we only get there if of_property_read_u32() successfully reads the cache line size. When CONFIG_OF is disabled, this always fails, and g_fragments_base is guaranteed to be NULL when vchiq_complete_bulk() gets called. This adds a CONFIG_OF Kconfig dependency, which is also technically correct but nonobvious, and thus seems like a good fit for the warning. Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/vc04_services/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/staging/vc04_services/Kconfig b/drivers/staging/vc04_services/Kconfig index e61e4ca064a8..74094fff4367 100644 --- a/drivers/staging/vc04_services/Kconfig +++ b/drivers/staging/vc04_services/Kconfig @@ -1,6 +1,7 @@ config BCM2835_VCHIQ tristate "Videocore VCHIQ" depends on HAS_DMA + depends on OF depends on RASPBERRYPI_FIRMWARE || (COMPILE_TEST && !RASPBERRYPI_FIRMWARE) default y help -- cgit From eb38d913c27f32f4df173791051fecf6aca34173 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Thu, 2 Mar 2017 10:44:58 +0200 Subject: Revert "usb: gadget: uvc: Add missing call for additional setup data" This reverts commit 4fbac5206afd01b717d4bdc58793d471f3391b4b. This commit breaks g_webcam when used with uvc-gadget [1]. The user space application (e.g. uvc-gadget) is responsible for sending response to UVC class specific requests on control endpoint in uvc_send_response() in uvc_v4l2.c. The bad commit was causing a duplicate response to be sent with incorrect response data thus causing UVC probe to fail at the host and broken control transfer endpoint at the gadget. [1] - git://git.ideasonboard.org/uvc-gadget.git Cc: # v4.9+ Acked-by: Laurent Pinchart Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_uvc.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/function/f_uvc.c b/drivers/usb/gadget/function/f_uvc.c index 27ed51b5082f..29b41b5dee04 100644 --- a/drivers/usb/gadget/function/f_uvc.c +++ b/drivers/usb/gadget/function/f_uvc.c @@ -258,13 +258,6 @@ uvc_function_setup(struct usb_function *f, const struct usb_ctrlrequest *ctrl) memcpy(&uvc_event->req, ctrl, sizeof(uvc_event->req)); v4l2_event_queue(&uvc->vdev, &v4l2_event); - /* Pass additional setup data to userspace */ - if (uvc->event_setup_out && uvc->event_length) { - uvc->control_req->length = uvc->event_length; - return usb_ep_queue(uvc->func.config->cdev->gadget->ep0, - uvc->control_req, GFP_ATOMIC); - } - return 0; } -- cgit From 5bbc852676ae08e818241cf66a3ffe4be44225c4 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Tue, 28 Feb 2017 14:25:45 +0800 Subject: usb: gadget: dummy_hcd: clear usb_gadget region before registration When the user does device unbind and rebind test, the kernel will show below dump due to usb_gadget memory region is dirty after unbind. Clear usb_gadget region for every new probe. root@imx6qdlsolo:/sys/bus/platform/drivers/dummy_udc# echo dummy_udc.0 > bind [ 102.523312] kobject (eddd78b0): tried to init an initialized object, something is seriously wrong. [ 102.532447] CPU: 0 PID: 734 Comm: sh Not tainted 4.10.0-rc7-00872-g1b2b8e9 #1298 [ 102.539866] Hardware name: Freescale i.MX6 SoloX (Device Tree) [ 102.545717] Backtrace: [ 102.548225] [] (dump_backtrace) from [] (show_stack+0x18/0x1c) [ 102.555822] r7:ede34000 r6:60010013 r5:00000000 r4:c0f29418 [ 102.561512] [] (show_stack) from [] (dump_stack+0xb4/0xe8) [ 102.568764] [] (dump_stack) from [] (kobject_init+0x80/0x9c) [ 102.576187] r10:0000001f r9:eddd7000 r8:eeaf8c10 r7:eddd78a8 r6:c177891c r5:c0f3b060 [ 102.584036] r4:eddd78b0 r3:00000000 [ 102.587641] [] (kobject_init) from [] (device_initialize+0x28/0xf8) [ 102.595665] r5:eebc4800 r4:eddd78a8 [ 102.599268] [] (device_initialize) from [] (device_register+0x14/0x20) [ 102.607556] r7:eddd78a8 r6:00000000 r5:eebc4800 r4:eddd78a8 [ 102.613256] [] (device_register) from [] (usb_add_gadget_udc_release+0x8c/0x1ec) [ 102.622410] r5:eebc4800 r4:eddd7860 [ 102.626015] [] (usb_add_gadget_udc_release) from [] (usb_add_gadget_udc+0x14/0x18) [ 102.635351] r10:0000001f r9:eddd7000 r8:eddd788c r7:bf003770 r6:eddd77f8 r5:eddd7818 [ 102.643198] r4:eddd785c r3:eddd7b24 [ 102.646834] [] (usb_add_gadget_udc) from [] (dummy_udc_probe+0x170/0x1c4 [dummy_hcd]) [ 102.656458] [] (dummy_udc_probe [dummy_hcd]) from [] (platform_drv_probe+0x54/0xb8) [ 102.665881] r10:00000008 r9:c1778960 r8:bf004128 r7:fffffdfb r6:bf004128 r5:eeaf8c10 [ 102.673727] r4:eeaf8c10 [ 102.676293] [] (platform_drv_probe) from [] (driver_probe_device+0x264/0x474) [ 102.685186] r7:00000000 r6:00000000 r5:c1778960 r4:eeaf8c10 [ 102.690876] [] (driver_probe_device) from [] (bind_store+0xb8/0x14c) [ 102.698994] r10:eeb3bb4c r9:ede34000 r8:0000000c r7:eeaf8c44 r6:bf004128 r5:c0f3b668 [ 102.706840] r4:eeaf8c10 [ 102.709402] [] (bind_store) from [] (drv_attr_store+0x28/0x34) [ 102.716998] r9:ede34000 r8:00000000 r7:ee3863c0 r6:ee3863c0 r5:c0538c80 r4:c053970c [ 102.724776] [] (drv_attr_store) from [] (sysfs_kf_write+0x50/0x54) [ 102.732711] r5:c0538c80 r4:0000000c [ 102.736313] [] (sysfs_kf_write) from [] (kernfs_fop_write+0x100/0x214) [ 102.744599] r7:ee3863c0 r6:eeb3bb40 r5:00000000 r4:00000000 [ 102.750287] [] (kernfs_fop_write) from [] (__vfs_write+0x34/0x120) [ 102.758231] r10:00000000 r9:ede34000 r8:c0108bc4 r7:0000000c r6:ede35f80 r5:c029bd84 [ 102.766077] r4:ee223780 [ 102.768638] [] (__vfs_write) from [] (vfs_write+0xa8/0x170) [ 102.775974] r9:ede34000 r8:c0108bc4 r7:ede35f80 r6:01861cb0 r5:ee223780 r4:0000000c [ 102.783743] [] (vfs_write) from [] (SyS_write+0x4c/0xa8) [ 102.790818] r9:ede34000 r8:c0108bc4 r7:0000000c r6:01861cb0 r5:ee223780 r4:ee223780 [ 102.798595] [] (SyS_write) from [] (ret_fast_syscall+0x0/0x1c) [ 102.806188] r7:00000004 r6:b6e83d58 r5:01861cb0 r4:0000000c Fixes: 90fccb529d24 ("usb: gadget: Gadget directory cleanup - group UDC drivers") Cc: stable Acked-by: Alan Stern Signed-off-by: Peter Chen Tested-by: Xiaolong Ye Reported-by: Fengguang Wu Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/dummy_hcd.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c index c60abe3a68f9..8cabc5944d5f 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -1031,6 +1031,8 @@ static int dummy_udc_probe(struct platform_device *pdev) int rc; dum = *((void **)dev_get_platdata(&pdev->dev)); + /* Clear usb_gadget region for new registration to udc-core */ + memzero_explicit(&dum->gadget, sizeof(struct usb_gadget)); dum->gadget.name = gadget_name; dum->gadget.ops = &dummy_ops; dum->gadget.max_speed = USB_SPEED_SUPER; -- cgit From 077dbaee9df53c597df532a08d721d03f4570f3d Mon Sep 17 00:00:00 2001 From: Franck Demathieu Date: Thu, 23 Feb 2017 10:48:55 +0100 Subject: irqchip/crossbar: Fix incorrect type of local variables The max and entry variables are unsigned according to the dt-bindings. Fix following 3 sparse issues (-Wtypesign): drivers/irqchip/irq-crossbar.c:222:52: warning: incorrect type in argument 3 (different signedness) drivers/irqchip/irq-crossbar.c:222:52: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:222:52: got int * drivers/irqchip/irq-crossbar.c:245:56: warning: incorrect type in argument 4 (different signedness) drivers/irqchip/irq-crossbar.c:245:56: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:245:56: got int * drivers/irqchip/irq-crossbar.c:263:56: warning: incorrect type in argument 4 (different signedness) drivers/irqchip/irq-crossbar.c:263:56: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:263:56: got int * Signed-off-by: Franck Demathieu Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-crossbar.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c index 1eef56a89b1f..05bbf171df37 100644 --- a/drivers/irqchip/irq-crossbar.c +++ b/drivers/irqchip/irq-crossbar.c @@ -198,7 +198,8 @@ static const struct irq_domain_ops crossbar_domain_ops = { static int __init crossbar_of_init(struct device_node *node) { - int i, size, max = 0, reserved = 0, entry; + int i, size, reserved = 0; + u32 max = 0, entry; const __be32 *irqsr; int ret = -ENOMEM; -- cgit From 38355b2a44776c25b0f2ad466e8c51bb805b3032 Mon Sep 17 00:00:00 2001 From: John Keeping Date: Tue, 28 Feb 2017 10:55:30 +0000 Subject: usb: gadget: configs: plug memory leak When binding a gadget to a device, "name" is stored in gi->udc_name, but this does not happen when unregistering and the string is leaked. Signed-off-by: John Keeping Signed-off-by: Felipe Balbi --- drivers/usb/gadget/configfs.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c index 78c44979dde3..cbff3b02840d 100644 --- a/drivers/usb/gadget/configfs.c +++ b/drivers/usb/gadget/configfs.c @@ -269,6 +269,7 @@ static ssize_t gadget_dev_desc_UDC_store(struct config_item *item, ret = unregister_gadget(gi); if (ret) goto err; + kfree(name); } else { if (gi->composite.gadget_driver.udc_name) { ret = -EBUSY; -- cgit From 73561128eb72ca04c3be6e240f162a861bf68a86 Mon Sep 17 00:00:00 2001 From: Franck Demathieu Date: Mon, 27 Feb 2017 11:52:46 +0100 Subject: usb: dwc3: Fix incorrect type for utmi mode The utmi mode is unsigned according the dt-bindings. Fix sparse issue (-Wtypesign): drivers/usb/dwc3/dwc3-omap.c:391:50: warning: incorrect type in argument 3 (different signedness) drivers/usb/dwc3/dwc3-omap.c:391:50: expected unsigned int [usertype] *out_value drivers/usb/dwc3/dwc3-omap.c:391:50: got int * Signed-off-by: Franck Demathieu Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 2092e46b1380..4a595777969e 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -392,7 +392,7 @@ static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap) { u32 reg; struct device_node *node = omap->dev->of_node; - int utmi_mode = 0; + u32 utmi_mode = 0; reg = dwc3_omap_read_utmi_ctrl(omap); -- cgit From 4242820277b5378c9e4064e79306f326d731472f Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 22 Feb 2017 11:33:27 +0100 Subject: usb: gadget: udc: atmel: fix debug output The debug output now contains the wrong variable, as seen from the compiler warning: drivers/usb/gadget/udc/atmel_usba_udc.c: In function 'usba_ep_enable': drivers/usb/gadget/udc/atmel_usba_udc.c:632:550: error: 'ept_cfg' may be used uninitialized in this function [-Werror=maybe-uninitialized] DBG(DBG_ERR, "%s: EPT_CFG = 0x%lx (maxpacket = %lu)\n", This changes the debug output the same way as the other code. Fixes: 741d2558bf0a ("usb: gadget: udc: atmel: Update endpoint allocation scheme") Signed-off-by: Arnd Bergmann Acked-by: Alexandre Belloni Acked-by: Nicolas Ferre Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/atmel_usba_udc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c index 11bbce28bc23..2035906b8ced 100644 --- a/drivers/usb/gadget/udc/atmel_usba_udc.c +++ b/drivers/usb/gadget/udc/atmel_usba_udc.c @@ -610,7 +610,7 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) { struct usba_ep *ep = to_usba_ep(_ep); struct usba_udc *udc = ep->udc; - unsigned long flags, ept_cfg, maxpacket; + unsigned long flags, maxpacket; unsigned int nr_trans; DBG(DBG_GADGET, "%s: ep_enable: desc=%p\n", ep->ep.name, desc); @@ -630,7 +630,7 @@ usba_ep_enable(struct usb_ep *_ep, const struct usb_endpoint_descriptor *desc) ep->is_in = 0; DBG(DBG_ERR, "%s: EPT_CFG = 0x%lx (maxpacket = %lu)\n", - ep->ep.name, ept_cfg, maxpacket); + ep->ep.name, ep->ept_cfg, maxpacket); if (usb_endpoint_dir_in(desc)) { ep->is_in = 1; -- cgit From b6e7aeeaf235901c42ec35de4633c7c69501d303 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Tue, 21 Feb 2017 22:33:11 +0100 Subject: USB: gadgetfs: Fix a potential memory leak in 'dev_config()' 'kbuf' is allocated just a few lines above using 'memdup_user()'. If the 'if (dev->buf)' test fails, this memory is never released. Signed-off-by: Christophe JAILLET Signed-off-by: Felipe Balbi --- drivers/usb/gadget/legacy/inode.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index a2615d64d07c..0513dfa008e6 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -1782,8 +1782,10 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) spin_lock_irq (&dev->lock); value = -EINVAL; - if (dev->buf) + if (dev->buf) { + kfree(kbuf); goto fail; + } dev->buf = kbuf; /* full or low speed config */ -- cgit From 3ba534df815f233535b5a3dd3de41055666bbd21 Mon Sep 17 00:00:00 2001 From: Janusz Dziedzic Date: Thu, 16 Feb 2017 14:54:12 +0100 Subject: Revert "usb: gadget: f_fs: Fix ExtCompat descriptor validation" This reverts commit ac670a3a650b899fc020b81f63e810d06015b865. This introduce bug we already fixed in commit 53642399aa71 ("usb: gadget: f_fs: Fix wrong check on reserved1 wof OS_DESC_EXT_COMPAT") Next FFS (adb) SS enumeration fail with Windows OS. Signed-off-by: Janusz Dziedzic Signed-off-by: Felipe Balbi --- drivers/usb/gadget/function/f_fs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index 7e976f00cb02..a0085571824d 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -2264,7 +2264,7 @@ static int __ffs_data_do_os_desc(enum ffs_os_desc_type type, if (len < sizeof(*d) || d->bFirstInterfaceNumber >= ffs->interfaces_count || - d->Reserved1) + !d->Reserved1) return -EINVAL; for (i = 0; i < ARRAY_SIZE(d->Reserved2); ++i) if (d->Reserved2[i]) -- cgit From 1551e35ea4189c1f7199fe278395fc94196715f2 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 15 Feb 2017 14:16:26 +0200 Subject: usb: dwc3: gadget: Fix system suspend/resume on TI platforms On TI platforms (dra7, am437x), the DWC3_DSTS_DEVCTRLHLT bit is not set after the device controller is stopped via DWC3_DCTL_RUN_STOP. If we don't disconnect and stop the gadget, it stops working after a system resume with the trace below. There is no point in preventing gadget disconnect and gadget stop during system suspend/resume as we're going to suspend in any case, whether DEVCTRLHLT timed out or not. [ 141.727480] ------------[ cut here ]------------ [ 141.732349] WARNING: CPU: 1 PID: 2135 at drivers/usb/dwc3/gadget.c:2384 dwc3_stop_active_transfer.constprop.4+0xc4/0xe4 [dwc3] [ 141.744299] Modules linked in: usb_f_ss_lb g_zero libcomposite xhci_plat_hcd xhci_hcd usbcore dwc3 evdev udc_core m25p80 usb_common spi_nor snd_soc_davinci_mcasp snd_soc_simple_card snd_soc_edma snd_soc_tlv3e [ 141.792163] CPU: 1 PID: 2135 Comm: irq/456-dwc3 Not tainted 4.10.0-rc8 #1138 [ 141.799547] Hardware name: Generic DRA74X (Flattened Device Tree) [ 141.805940] [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [ 141.814066] [] (show_stack) from [] (dump_stack+0xac/0xe0) [ 141.821648] [] (dump_stack) from [] (__warn+0xd8/0x104) [ 141.828955] [] (__warn) from [] (warn_slowpath_null+0x20/0x28) [ 141.836902] [] (warn_slowpath_null) from [] (dwc3_stop_active_transfer.constprop.4+0xc4/0xe4 [dwc3]) [ 141.848329] [] (dwc3_stop_active_transfer.constprop.4 [dwc3]) from [] (__dwc3_gadget_ep_disable+0x64/0x528 [dwc3]) [ 141.861034] [] (__dwc3_gadget_ep_disable [dwc3]) from [] (dwc3_gadget_ep_disable+0x3c/0xc8 [dwc3]) [ 141.872280] [] (dwc3_gadget_ep_disable [dwc3]) from [] (usb_ep_disable+0x11c/0x18c [udc_core]) [ 141.883160] [] (usb_ep_disable [udc_core]) from [] (disable_ep+0x18/0x54 [usb_f_ss_lb]) [ 141.893408] [] (disable_ep [usb_f_ss_lb]) from [] (disable_endpoints+0x18/0x50 [usb_f_ss_lb]) [ 141.904168] [] (disable_endpoints [usb_f_ss_lb]) from [] (disable_source_sink+0x2c/0x34 [usb_f_ss_lb]) [ 141.915771] [] (disable_source_sink [usb_f_ss_lb]) from [] (reset_config+0x48/0x7c [libcomposite]) [ 141.927012] [] (reset_config [libcomposite]) from [] (composite_disconnect+0x2c/0x54 [libcomposite]) [ 141.938444] [] (composite_disconnect [libcomposite]) from [] (usb_gadget_udc_reset+0x10/0x34 [udc_core]) [ 141.950237] [] (usb_gadget_udc_reset [udc_core]) from [] (dwc3_gadget_reset_interrupt+0x64/0x698 [dwc3]) [ 141.962022] [] (dwc3_gadget_reset_interrupt [dwc3]) from [] (dwc3_thread_interrupt+0x618/0x1a3c [dwc3]) [ 141.973723] [] (dwc3_thread_interrupt [dwc3]) from [] (irq_thread_fn+0x1c/0x54) [ 141.983215] [] (irq_thread_fn) from [] (irq_thread+0x120/0x1f0) [ 141.991247] [] (irq_thread) from [] (kthread+0xf8/0x138) [ 141.998641] [] (kthread) from [] (ret_from_fork+0x14/0x24) [ 142.006213] ---[ end trace b4ecfe9f175b9a9c ]--- Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index f875b3f4b0ec..3db5eeae2bfb 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -3291,15 +3291,10 @@ void dwc3_gadget_exit(struct dwc3 *dwc) int dwc3_gadget_suspend(struct dwc3 *dwc) { - int ret; - if (!dwc->gadget_driver) return 0; - ret = dwc3_gadget_run_stop(dwc, false, false); - if (ret < 0) - return ret; - + dwc3_gadget_run_stop(dwc, false, false); dwc3_disconnect_gadget(dwc); __dwc3_gadget_stop(dwc); -- cgit From 0913750f9fb6f26bcd00c8f9dd9a8d1b8d031246 Mon Sep 17 00:00:00 2001 From: Roger Quadros Date: Wed, 15 Feb 2017 13:38:22 +0200 Subject: usb: dwc3-omap: Fix missing break in dwc3_omap_set_mailbox() We need to break from all cases if we want to treat each one of them separately. Reported-by: Gustavo A. R. Silva Fixes: d2728fb3e01f ("usb: dwc3: omap: Pass VBUS and ID events transparently") Cc: #v4.8+ Signed-off-by: Roger Quadros Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/dwc3-omap.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c index 4a595777969e..f8d0747810e7 100644 --- a/drivers/usb/dwc3/dwc3-omap.c +++ b/drivers/usb/dwc3/dwc3-omap.c @@ -250,6 +250,7 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap, val = dwc3_omap_read_utmi_ctrl(omap); val |= USBOTGSS_UTMI_OTG_CTRL_IDDIG; dwc3_omap_write_utmi_ctrl(omap, val); + break; case OMAP_DWC3_VBUS_OFF: val = dwc3_omap_read_utmi_ctrl(omap); -- cgit From df7545719a14fa7b481896fb8689e23d0a00f682 Mon Sep 17 00:00:00 2001 From: Petr Cvek Date: Fri, 24 Feb 2017 02:54:56 +0100 Subject: usb: gadget: pxa27x: Test for a valid argument pointer A call usb_put_phy(udc->transceiver) must be tested for a valid pointer. Use an already existing test for usb_unregister_notifier call. Acked-by: Robert Jarzmik Reported-by: Robert Jarzmik Signed-off-by: Petr Cvek Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/pxa27x_udc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/udc/pxa27x_udc.c b/drivers/usb/gadget/udc/pxa27x_udc.c index e1335ad5bce9..832c4fdbe985 100644 --- a/drivers/usb/gadget/udc/pxa27x_udc.c +++ b/drivers/usb/gadget/udc/pxa27x_udc.c @@ -2534,9 +2534,10 @@ static int pxa_udc_remove(struct platform_device *_dev) usb_del_gadget_udc(&udc->gadget); pxa_cleanup_debugfs(udc); - if (!IS_ERR_OR_NULL(udc->transceiver)) + if (!IS_ERR_OR_NULL(udc->transceiver)) { usb_unregister_notifier(udc->transceiver, &pxa27x_udc_phy); - usb_put_phy(udc->transceiver); + usb_put_phy(udc->transceiver); + } udc->transceiver = NULL; the_controller = NULL; -- cgit From ef5e2fa9f65befa12f1113c734602d2c1964d2a5 Mon Sep 17 00:00:00 2001 From: Raz Manor Date: Thu, 9 Feb 2017 09:41:08 +0200 Subject: usb: gadget: udc: net2280: Fix tmp reusage in net2280 driver In the function scan_dma_completions() there is a reusage of tmp variable. That coused a wrong value being used in some case when reading a short packet terminated transaction from an endpoint, in 2 concecutive reads. This was my logic for the patch: The req->td->dmadesc equals to 0 iff: -- There was a transaction ending with a short packet, and -- The read() to read it was shorter than the transaction length, and -- The read() to complete it is longer than the residue. I believe this is true from the printouts of various cases, but I can't be positive it is correct. Entering this if, there should be no more data in the endpoint (a short packet terminated the transaction). If there is, the transaction wasn't really done and we should exit and wait for it to finish entirely. That is the inner if. That inner if should never happen, but it is there to be on the safe side. That is why it is marked with the comment /* paranoia */. The size of the data available in the endpoint is ep->dma->dmacount and it is read to tmp. This entire clause is based on my own educated guesses. If we passed that inner if without breaking in the original code, than tmp & DMA_BYTE_MASK_COUNT== 0. That means we will always pass dma bytes count of 0 to dma_done(), meaning all the requested bytes were read. dma_done() reports back to the upper layer that the request (read()) was done and how many bytes were read. In the original code that would always be the request size, regardless of the actual size of the data. That did not make sense to me at all. However, the original value of tmp is req->td->dmacount, which is the dmacount value when the request's dma transaction was finished. And that is a much more reasonable value to report back to the caller. To recreate the problem: Read from a bulk out endpoint in a loop, 1024 * n bytes in each iteration. Connect the PLX to a host you can control. Send to that endpoint 1024 * n + x bytes, such that 0 < x < 1024 * n and (x % 1024) != 0 You would expect the first read() to return 1024 * n and the second read() to return x. But you will get the first read to return 1024 * n and the second one to return 1024 * n. That is true for every positive integer n. Cc: Felipe Balbi Cc: Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org Signed-off-by: Raz Manor Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/net2280.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c index 85504419ab31..3828c2ec8623 100644 --- a/drivers/usb/gadget/udc/net2280.c +++ b/drivers/usb/gadget/udc/net2280.c @@ -1146,15 +1146,15 @@ static int scan_dma_completions(struct net2280_ep *ep) */ while (!list_empty(&ep->queue)) { struct net2280_request *req; - u32 tmp; + u32 req_dma_count; req = list_entry(ep->queue.next, struct net2280_request, queue); if (!req->valid) break; rmb(); - tmp = le32_to_cpup(&req->td->dmacount); - if ((tmp & BIT(VALID_BIT)) != 0) + req_dma_count = le32_to_cpup(&req->td->dmacount); + if ((req_dma_count & BIT(VALID_BIT)) != 0) break; /* SHORT_PACKET_TRANSFERRED_INTERRUPT handles "usb-short" @@ -1163,40 +1163,41 @@ static int scan_dma_completions(struct net2280_ep *ep) */ if (unlikely(req->td->dmadesc == 0)) { /* paranoia */ - tmp = readl(&ep->dma->dmacount); - if (tmp & DMA_BYTE_COUNT_MASK) + u32 const ep_dmacount = readl(&ep->dma->dmacount); + + if (ep_dmacount & DMA_BYTE_COUNT_MASK) break; /* single transfer mode */ - dma_done(ep, req, tmp, 0); + dma_done(ep, req, req_dma_count, 0); num_completed++; break; } else if (!ep->is_in && (req->req.length % ep->ep.maxpacket) && !(ep->dev->quirks & PLX_PCIE)) { - tmp = readl(&ep->regs->ep_stat); + u32 const ep_stat = readl(&ep->regs->ep_stat); /* AVOID TROUBLE HERE by not issuing short reads from * your gadget driver. That helps avoids errata 0121, * 0122, and 0124; not all cases trigger the warning. */ - if ((tmp & BIT(NAK_OUT_PACKETS)) == 0) { + if ((ep_stat & BIT(NAK_OUT_PACKETS)) == 0) { ep_warn(ep->dev, "%s lost packet sync!\n", ep->ep.name); req->req.status = -EOVERFLOW; } else { - tmp = readl(&ep->regs->ep_avail); - if (tmp) { + u32 const ep_avail = readl(&ep->regs->ep_avail); + if (ep_avail) { /* fifo gets flushed later */ ep->out_overflow = 1; ep_dbg(ep->dev, "%s dma, discard %d len %d\n", - ep->ep.name, tmp, + ep->ep.name, ep_avail, req->req.length); req->req.status = -EOVERFLOW; } } } - dma_done(ep, req, tmp, 0); + dma_done(ep, req, req_dma_count, 0); num_completed++; } -- cgit From d85fc67dd11e9a32966140677d4d6429ca540b25 Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Fri, 3 Mar 2017 09:00:09 -0800 Subject: libata: transport: Remove circular dependency at free time Without this patch, failed probe would not free resources like irq. ata port tdev object currently hold a reference to the ata port object. Therefore the ata port object release function will not get called until the ata_tport_release is called. But that would never happen, releasing the last reference of ata port dev is done by scsi_host_release, which is called by ata_host_release when the ata port object is released. The ata device objects actually do not need to explicitly hold a reference to their real counterpart, given the transport objects are the children of these objects and device_add() is call for each child. We know the parent will not be deleted until we call the child's device_del(). Reported-by: Matthew Whitehead Tested-by: Matthew Whitehead Suggested-by: Tejun Heo Signed-off-by: Gwendal Grignou Signed-off-by: Tejun Heo --- drivers/ata/libata-transport.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c index 46698232e6bf..19e6e539a061 100644 --- a/drivers/ata/libata-transport.c +++ b/drivers/ata/libata-transport.c @@ -224,7 +224,6 @@ static DECLARE_TRANSPORT_CLASS(ata_port_class, static void ata_tport_release(struct device *dev) { - put_device(dev->parent); } /** @@ -284,7 +283,7 @@ int ata_tport_add(struct device *parent, device_initialize(dev); dev->type = &ata_port_type; - dev->parent = get_device(parent); + dev->parent = parent; dev->release = ata_tport_release; dev_set_name(dev, "ata%d", ap->print_id); transport_setup_device(dev); @@ -348,7 +347,6 @@ static DECLARE_TRANSPORT_CLASS(ata_link_class, static void ata_tlink_release(struct device *dev) { - put_device(dev->parent); } /** @@ -410,7 +408,7 @@ int ata_tlink_add(struct ata_link *link) int error; device_initialize(dev); - dev->parent = get_device(&ap->tdev); + dev->parent = &ap->tdev; dev->release = ata_tlink_release; if (ata_is_host_link(link)) dev_set_name(dev, "link%d", ap->print_id); @@ -589,7 +587,6 @@ static DECLARE_TRANSPORT_CLASS(ata_dev_class, static void ata_tdev_release(struct device *dev) { - put_device(dev->parent); } /** @@ -662,7 +659,7 @@ static int ata_tdev_add(struct ata_device *ata_dev) int error; device_initialize(dev); - dev->parent = get_device(&link->tdev); + dev->parent = &link->tdev; dev->release = ata_tdev_release; if (ata_is_host_link(link)) dev_set_name(dev, "dev%d.%d", ap->print_id,ata_dev->devno); -- cgit From 0580b762a4d6b70817476b90042813f8573283fa Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 6 Mar 2017 15:26:54 -0500 Subject: libata: drop WARN from protocol error in ata_sff_qc_issue() ata_sff_qc_issue() expects upper layers to never issue commands on a command protocol that it doesn't implement. While the assumption holds fine with the usual IO path, nothing filters based on the command protocol in the passthrough path (which was added later), allowing the warning to be tripped with a passthrough command with the right (well, wrong) protocol. Failing with AC_ERR_SYSTEM is the right thing to do anyway. Remove the unnecessary WARN. Reported-by: Dmitry Vyukov Link: http://lkml.kernel.org/r/CACT4Y+bXkvevNZU8uP6X0QVqsj6wNoUA_1exfTSOzc+SmUtMOA@mail.gmail.com Signed-off-by: Tejun Heo --- drivers/ata/libata-sff.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index 2bd92dca3e62..274d6d7193d7 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -1482,7 +1482,6 @@ unsigned int ata_sff_qc_issue(struct ata_queued_cmd *qc) break; default: - WARN_ON_ONCE(1); return AC_ERR_SYSTEM; } -- cgit From bd571195c9535c0b074fc7cd1b541b93817ed647 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Thu, 2 Mar 2017 15:58:03 +0100 Subject: scsi: qedi: fix build error without DEBUG_FS Without CONFIG_DEBUG_FS, we run into a link error: drivers/scsi/qedi/qedi_iscsi.o: In function `qedi_ep_poll': qedi_iscsi.c:(.text.qedi_ep_poll+0x134): undefined reference to `do_not_recover' drivers/scsi/qedi/qedi_iscsi.o: In function `qedi_ep_disconnect': qedi_iscsi.c:(.text.qedi_ep_disconnect+0x36c): undefined reference to `do_not_recover' drivers/scsi/qedi/qedi_iscsi.o: In function `qedi_ep_connect': qedi_iscsi.c:(.text.qedi_ep_connect+0x350): undefined reference to `do_not_recover' drivers/scsi/qedi/qedi_fw.o: In function `qedi_tmf_work': qedi_fw.c:(.text.qedi_tmf_work+0x3b4): undefined reference to `do_not_recover' This defines the symbol as a constant in this case, as there is no way to set it to anything other than zero without DEBUG_FS. In addition, I'm renaming it to qedi_do_not_recover in order to put it into a driver specific namespace, as "do_not_recover" is a really bad name for a kernel-wide global identifier when it is used only in one driver. Fixes: ace7f46ba5fd ("scsi: qedi: Add QLogic FastLinQ offload iSCSI driver framework.") Reviewed-by: Johannes Thumshirn Signed-off-by: Arnd Bergmann Acked-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_debugfs.c | 16 ++++++++-------- drivers/scsi/qedi/qedi_fw.c | 4 ++-- drivers/scsi/qedi/qedi_gbl.h | 8 +++++++- drivers/scsi/qedi/qedi_iscsi.c | 8 ++++---- 4 files changed, 21 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qedi/qedi_debugfs.c b/drivers/scsi/qedi/qedi_debugfs.c index 955936274241..59417199bf36 100644 --- a/drivers/scsi/qedi/qedi_debugfs.c +++ b/drivers/scsi/qedi/qedi_debugfs.c @@ -14,7 +14,7 @@ #include #include -int do_not_recover; +int qedi_do_not_recover; static struct dentry *qedi_dbg_root; void @@ -74,22 +74,22 @@ qedi_dbg_exit(void) static ssize_t qedi_dbg_do_not_recover_enable(struct qedi_dbg_ctx *qedi_dbg) { - if (!do_not_recover) - do_not_recover = 1; + if (!qedi_do_not_recover) + qedi_do_not_recover = 1; QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n", - do_not_recover); + qedi_do_not_recover); return 0; } static ssize_t qedi_dbg_do_not_recover_disable(struct qedi_dbg_ctx *qedi_dbg) { - if (do_not_recover) - do_not_recover = 0; + if (qedi_do_not_recover) + qedi_do_not_recover = 0; QEDI_INFO(qedi_dbg, QEDI_LOG_DEBUGFS, "do_not_recover=%d\n", - do_not_recover); + qedi_do_not_recover); return 0; } @@ -141,7 +141,7 @@ qedi_dbg_do_not_recover_cmd_read(struct file *filp, char __user *buffer, if (*ppos) return 0; - cnt = sprintf(buffer, "do_not_recover=%d\n", do_not_recover); + cnt = sprintf(buffer, "do_not_recover=%d\n", qedi_do_not_recover); cnt = min_t(int, count, cnt - *ppos); *ppos += cnt; return cnt; diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c index c9f0ef4e11b3..2bce3efc66a4 100644 --- a/drivers/scsi/qedi/qedi_fw.c +++ b/drivers/scsi/qedi/qedi_fw.c @@ -1461,9 +1461,9 @@ static void qedi_tmf_work(struct work_struct *work) get_itt(tmf_hdr->rtt), get_itt(ctask->itt), cmd->task_id, qedi_conn->iscsi_conn_id); - if (do_not_recover) { + if (qedi_do_not_recover) { QEDI_ERR(&qedi->dbg_ctx, "DONT SEND CLEANUP/ABORT %d\n", - do_not_recover); + qedi_do_not_recover); goto abort_ret; } diff --git a/drivers/scsi/qedi/qedi_gbl.h b/drivers/scsi/qedi/qedi_gbl.h index 8e488de88ece..63d793f46064 100644 --- a/drivers/scsi/qedi/qedi_gbl.h +++ b/drivers/scsi/qedi/qedi_gbl.h @@ -12,8 +12,14 @@ #include "qedi_iscsi.h" +#ifdef CONFIG_DEBUG_FS +extern int qedi_do_not_recover; +#else +#define qedi_do_not_recover (0) +#endif + extern uint qedi_io_tracing; -extern int do_not_recover; + extern struct scsi_host_template qedi_host_template; extern struct iscsi_transport qedi_iscsi_transport; extern const struct qed_iscsi_ops *qedi_ops; diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index b9f79d36142d..4cc474364c50 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -833,7 +833,7 @@ qedi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr, return ERR_PTR(ret); } - if (do_not_recover) { + if (qedi_do_not_recover) { ret = -ENOMEM; return ERR_PTR(ret); } @@ -957,7 +957,7 @@ static int qedi_ep_poll(struct iscsi_endpoint *ep, int timeout_ms) struct qedi_endpoint *qedi_ep; int ret = 0; - if (do_not_recover) + if (qedi_do_not_recover) return 1; qedi_ep = ep->dd_data; @@ -1025,7 +1025,7 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep) } if (test_bit(QEDI_IN_RECOVERY, &qedi->flags)) { - if (do_not_recover) { + if (qedi_do_not_recover) { QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Do not recover cid=0x%x\n", qedi_ep->iscsi_cid); @@ -1039,7 +1039,7 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep) } } - if (do_not_recover) + if (qedi_do_not_recover) goto ep_exit_recover; switch (qedi_ep->state) { -- cgit From 934767c56b0d9dbb95a40e9e6e4d9dcdc3a165ad Mon Sep 17 00:00:00 2001 From: Raghava Aditya Renukunta Date: Thu, 2 Mar 2017 09:21:33 -0800 Subject: scsi: aacraid: Fix typo in blink status The return status of the adapter check on KERNEL_PANIC is supposed to be the upper 16 bits of the OMR status register. Fixes: c421530bf848604e (scsi: aacraid: Reorder Adpater status check) Reported-by: Dan Carpenter Signed-off-by: Raghava Aditya Renukunta Reviewed-by: Dave Carroll Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/src.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/aacraid/src.c b/drivers/scsi/aacraid/src.c index 2e5338dec621..7b0410e0f569 100644 --- a/drivers/scsi/aacraid/src.c +++ b/drivers/scsi/aacraid/src.c @@ -468,7 +468,7 @@ err_out: return -1; err_blink: - return (status > 16) & 0xFF; + return (status >> 16) & 0xFF; } static inline u32 aac_get_vector(struct aac_dev *dev) -- cgit From 23456565acf6d452e0368f7380aecd584c019c67 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 2 Mar 2017 17:14:47 -0800 Subject: scsi: qla2xxx: Fix ql_dump_buffer Recent printk changes for KERN_CONT cause this logging to be defectively emitted on multiple lines. Fix it. Also reduces object size a trivial amount. $ size drivers/scsi/qla2xxx/qla_dbg.o* text data bss dec hex filename 39125 0 0 39125 98d5 drivers/scsi/qla2xxx/qla_dbg.o.new 39164 0 0 39164 98fc drivers/scsi/qla2xxx/qla_dbg.o.old Signed-off-by: Joe Perches Acked-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dbg.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 21d9fb7fc887..51b4179469d1 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -2707,13 +2707,9 @@ ql_dump_buffer(uint32_t level, scsi_qla_host_t *vha, int32_t id, "%-+5d 0 1 2 3 4 5 6 7 8 9 A B C D E F\n", size); ql_dbg(level, vha, id, "----- -----------------------------------------------\n"); - for (cnt = 0; cnt < size; cnt++, buf++) { - if (cnt % 16 == 0) - ql_dbg(level, vha, id, "%04x:", cnt & ~0xFU); - printk(" %02x", *buf); - if (cnt % 16 == 15) - printk("\n"); + for (cnt = 0; cnt < size; cnt += 16) { + ql_dbg(level, vha, id, "%04x: ", cnt); + print_hex_dump(KERN_CONT, "", DUMP_PREFIX_NONE, 16, 1, + buf + cnt, min(16U, size - cnt), false); } - if (cnt % 16 != 0) - printk("\n"); } -- cgit From c527de41aea24c2cdb6638818008d810013b4d39 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 3 Mar 2017 07:57:16 -0700 Subject: scsi: vmw_pvscsi: handle the return value from pci_alloc_irq_vectors correctly MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit It returns the number of vectors allocated when successful, so check for a negative error only. Fixes: 2e48e349 ("scsi: vmw_pvscsi: switch to pci_alloc_irq_vectors") Signed-off-by: Christoph Hellwig Reported-by: Loïc Yhuel Tested-by: Loïc Yhuel Signed-off-by: Martin K. Petersen --- drivers/scsi/vmw_pvscsi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c index ef474a748744..c374e3b5c678 100644 --- a/drivers/scsi/vmw_pvscsi.c +++ b/drivers/scsi/vmw_pvscsi.c @@ -1487,7 +1487,7 @@ static int pvscsi_probe(struct pci_dev *pdev, const struct pci_device_id *id) irq_flag &= ~PCI_IRQ_MSI; error = pci_alloc_irq_vectors(adapter->dev, 1, 1, irq_flag); - if (error) + if (error < 0) goto out_reset_adapter; adapter->use_req_threshold = pvscsi_setup_req_threshold(adapter, true); -- cgit From db6b2060bcae1ce1f9bde73a423e710b625ae1ef Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Sat, 4 Mar 2017 00:07:04 -0800 Subject: scsi: qedf: Fix defective logging format and argument mismatches Add __printf compiler verification of format and arguments. Fix fallout. Signed-off-by: Joe Perches Acked-by: Chad Dupuis Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_dbg.h | 13 ++++++++----- drivers/scsi/qedf/qedf_fip.c | 2 +- drivers/scsi/qedf/qedf_io.c | 4 ++-- 3 files changed, 11 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qedf/qedf_dbg.h b/drivers/scsi/qedf/qedf_dbg.h index 23bd70628a2f..7d173f48a81e 100644 --- a/drivers/scsi/qedf/qedf_dbg.h +++ b/drivers/scsi/qedf/qedf_dbg.h @@ -81,14 +81,17 @@ struct qedf_dbg_ctx { #define QEDF_INFO(pdev, level, fmt, ...) \ qedf_dbg_info(pdev, __func__, __LINE__, level, fmt, \ ## __VA_ARGS__) - -extern void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line, +__printf(4, 5) +void qedf_dbg_err(struct qedf_dbg_ctx *qedf, const char *func, u32 line, const char *fmt, ...); -extern void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line, +__printf(4, 5) +void qedf_dbg_warn(struct qedf_dbg_ctx *qedf, const char *func, u32 line, const char *, ...); -extern void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, +__printf(4, 5) +void qedf_dbg_notice(struct qedf_dbg_ctx *qedf, const char *func, u32 line, const char *, ...); -extern void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line, +__printf(5, 6) +void qedf_dbg_info(struct qedf_dbg_ctx *qedf, const char *func, u32 line, u32 info, const char *fmt, ...); /* GRC Dump related defines */ diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c index 868d423380d1..ed58b9104f58 100644 --- a/drivers/scsi/qedf/qedf_fip.c +++ b/drivers/scsi/qedf/qedf_fip.c @@ -203,7 +203,7 @@ void qedf_fip_recv(struct qedf_ctx *qedf, struct sk_buff *skb) case FIP_DT_MAC: mp = (struct fip_mac_desc *)desc; QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_LL2, - "fd_mac=%pM.\n", __func__, mp->fd_mac); + "fd_mac=%pM\n", mp->fd_mac); ether_addr_copy(cvl_mac, mp->fd_mac); break; case FIP_DT_NAME: diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index ee0dcf9d3aba..46debe5034af 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -1342,7 +1342,7 @@ void qedf_scsi_completion(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, } else { refcount = kref_read(&io_req->refcount); QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, - "%d:0:%d:%d xid=0x%0x op=0x%02x " + "%d:0:%d:%lld xid=0x%0x op=0x%02x " "lba=%02x%02x%02x%02x cdb_status=%d " "fcp_resid=0x%x refcount=%d.\n", qedf->lport->host->host_no, sc_cmd->device->id, @@ -1426,7 +1426,7 @@ void qedf_scsi_done(struct qedf_ctx *qedf, struct qedf_ioreq *io_req, sc_cmd->result = result << 16; refcount = kref_read(&io_req->refcount); - QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%d: Completing " + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_IO, "%d:0:%d:%lld: Completing " "sc_cmd=%p result=0x%08x op=0x%02x lba=0x%02x%02x%02x%02x, " "allowed=%d retries=%d refcount=%d.\n", qedf->lport->host->host_no, sc_cmd->device->id, -- cgit From fd2b18b4a7bf01453324733a18297ae9a197a4ae Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 6 Mar 2017 10:32:27 -0800 Subject: scsi: qedf: Use vsprintf extension %pad Using %llx for a dma_addr_t can lead to format/argument mismatches. Use %pad and the address of the dma_addr_t instead. Signed-off-by: Joe Perches Acked-by: Chad Dupuis Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index d9d7a86b5f8b..8e2a160490e6 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -2456,8 +2456,8 @@ static int qedf_alloc_bdq(struct qedf_ctx *qedf) } QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, - "BDQ PBL addr=0x%p dma=0x%llx.\n", qedf->bdq_pbl, - qedf->bdq_pbl_dma); + "BDQ PBL addr=0x%p dma=%pad\n", + qedf->bdq_pbl, &qedf->bdq_pbl_dma); /* * Populate BDQ PBL with physical and virtual address of individual -- cgit From 33cc559a81397bc813c392617d40ddfdfa3cffbd Mon Sep 17 00:00:00 2001 From: Tomas Jasek Date: Fri, 3 Mar 2017 13:45:48 +0100 Subject: scsi: lpfc: replace init_timer by setup_timer This patch shortens every init_timer in lpfc module followed by function and data assignment using setup_timer. This is purely cleanup patch, it does not add new functionality nor remove any existing functionality. An init_timer call in this form: init_timer(&vport->fc_disctmo); vport->fc_disctmo.function = lpfc_disc_timeout; vport->fc_disctmo.data = vport; is shortened to: setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, vport); It increases readability and reduces chances of mistakes done by developers. Signed-off-by: Tomas Jasek Signed-off-by: Jiri Slaby Cc: James Smart Cc: Dick Kennedy Cc: "James E.J. Bottomley" Cc: "Martin K. Petersen" Cc: Acked-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_hbadisc.c | 5 ++--- drivers/scsi/lpfc/lpfc_init.c | 47 +++++++++++++++------------------------- 2 files changed, 19 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 194a14d5f8a9..2612dac75186 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -4344,9 +4344,8 @@ lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp, { INIT_LIST_HEAD(&ndlp->els_retry_evt.evt_listp); INIT_LIST_HEAD(&ndlp->dev_loss_evt.evt_listp); - init_timer(&ndlp->nlp_delayfunc); - ndlp->nlp_delayfunc.function = lpfc_els_retry_delay; - ndlp->nlp_delayfunc.data = (unsigned long)ndlp; + setup_timer(&ndlp->nlp_delayfunc, lpfc_els_retry_delay, + (unsigned long)ndlp); ndlp->nlp_DID = did; ndlp->vport = vport; ndlp->phba = vport->phba; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 0ee429d773f3..f395f2e4aa97 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3734,17 +3734,14 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) INIT_LIST_HEAD(&vport->rcv_buffer_list); spin_lock_init(&vport->work_port_lock); - init_timer(&vport->fc_disctmo); - vport->fc_disctmo.function = lpfc_disc_timeout; - vport->fc_disctmo.data = (unsigned long)vport; + setup_timer(&vport->fc_disctmo, lpfc_disc_timeout, + (unsigned long)vport); - init_timer(&vport->els_tmofunc); - vport->els_tmofunc.function = lpfc_els_timeout; - vport->els_tmofunc.data = (unsigned long)vport; + setup_timer(&vport->els_tmofunc, lpfc_els_timeout, + (unsigned long)vport); - init_timer(&vport->delayed_disc_tmo); - vport->delayed_disc_tmo.function = lpfc_delayed_disc_tmo; - vport->delayed_disc_tmo.data = (unsigned long)vport; + setup_timer(&vport->delayed_disc_tmo, lpfc_delayed_disc_tmo, + (unsigned long)vport); error = scsi_add_host_with_dma(shost, dev, &phba->pcidev->dev); if (error) @@ -5406,21 +5403,15 @@ lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba) INIT_LIST_HEAD(&phba->luns); /* MBOX heartbeat timer */ - init_timer(&psli->mbox_tmo); - psli->mbox_tmo.function = lpfc_mbox_timeout; - psli->mbox_tmo.data = (unsigned long) phba; + setup_timer(&psli->mbox_tmo, lpfc_mbox_timeout, (unsigned long)phba); /* Fabric block timer */ - init_timer(&phba->fabric_block_timer); - phba->fabric_block_timer.function = lpfc_fabric_block_timeout; - phba->fabric_block_timer.data = (unsigned long) phba; + setup_timer(&phba->fabric_block_timer, lpfc_fabric_block_timeout, + (unsigned long)phba); /* EA polling mode timer */ - init_timer(&phba->eratt_poll); - phba->eratt_poll.function = lpfc_poll_eratt; - phba->eratt_poll.data = (unsigned long) phba; + setup_timer(&phba->eratt_poll, lpfc_poll_eratt, + (unsigned long)phba); /* Heartbeat timer */ - init_timer(&phba->hb_tmofunc); - phba->hb_tmofunc.function = lpfc_hb_timeout; - phba->hb_tmofunc.data = (unsigned long)phba; + setup_timer(&phba->hb_tmofunc, lpfc_hb_timeout, (unsigned long)phba); return 0; } @@ -5446,9 +5437,8 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) */ /* FCP polling mode timer */ - init_timer(&phba->fcp_poll_timer); - phba->fcp_poll_timer.function = lpfc_poll_timeout; - phba->fcp_poll_timer.data = (unsigned long) phba; + setup_timer(&phba->fcp_poll_timer, lpfc_poll_timeout, + (unsigned long)phba); /* Host attention work mask setup */ phba->work_ha_mask = (HA_ERATT | HA_MBATT | HA_LATT); @@ -5617,14 +5607,11 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) * Initialize timers used by driver */ - init_timer(&phba->rrq_tmr); - phba->rrq_tmr.function = lpfc_rrq_timeout; - phba->rrq_tmr.data = (unsigned long)phba; + setup_timer(&phba->rrq_tmr, lpfc_rrq_timeout, (unsigned long)phba); /* FCF rediscover timer */ - init_timer(&phba->fcf.redisc_wait); - phba->fcf.redisc_wait.function = lpfc_sli4_fcf_redisc_wait_tmo; - phba->fcf.redisc_wait.data = (unsigned long)phba; + setup_timer(&phba->fcf.redisc_wait, lpfc_sli4_fcf_redisc_wait_tmo, + (unsigned long)phba); /* * Control structure for handling external multi-buffer mailbox -- cgit From 70e5afd57d6d97d69bf5fd0187c2bb5a79990504 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:21 -0800 Subject: scsi: lpfc: remove redundant assignment of sgel From: Colin Ian King In the NVMET_FCOP_RSP case, sgel is assigned but never used and hence is redundant and can be removed. Detected by CoverityScan, CID#1411658 ("Unused value") Signed-off-by: Colin Ian King Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvmet.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index c421e1738ee9..e59a0a89d357 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -1445,7 +1445,6 @@ lpfc_nvmet_prep_fcp_wqe(struct lpfc_hba *phba, case NVMET_FCOP_RSP: /* Words 0 - 2 */ - sgel = &rsp->sg[0]; physaddr = rsp->rspdma; wqe->fcp_trsp.bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64; wqe->fcp_trsp.bde.tus.f.bdeSize = rsp->rsplen; -- cgit From 7aabe84b8a1bb7c3f75fb6a23dc96f8999bdcc8f Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:22 -0800 Subject: scsi: lpfc: sanity check hrq is null before dereferencing it From: Colin Ian King The sanity check for hrq should be moved to before the deference of hrq to ensure we don't perform a null pointer deference. Detected by CoverityScan, CID#1411650 ("Dereference before null check") Signed-off-by: Colin Ian King Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_sli.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index d8d8693040ac..562a5286bc47 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -15185,17 +15185,17 @@ lpfc_mrq_create(struct lpfc_hba *phba, struct lpfc_queue **hrqp, drq = drqp[idx]; cq = cqp[idx]; - if (hrq->entry_count != drq->entry_count) { - status = -EINVAL; - goto out; - } - /* sanity check on queue memory */ if (!hrq || !drq || !cq) { status = -ENODEV; goto out; } + if (hrq->entry_count != drq->entry_count) { + status = -EINVAL; + goto out; + } + if (idx == 0) { bf_set(lpfc_mbx_rq_create_num_pages, &rq_create->u.request, -- cgit From 332ba3b5d6d27a60d445704ed7c88c7e9f958a30 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:23 -0800 Subject: scsi: lpfc: don't dereference dma_buf->iocbq before null check From: Colin Ian King dma_buf->iocbq is being dereferenced immediately before it is being null checked, so we have a potential null pointer dereference bug. Fix this by only dereferencing it only once we have passed a null check on the pointer. Detected by CoverityScan, CID#1411652 ("Dereference before null check") Signed-off-by: Colin Ian King Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_mem.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c index c61d8d692ede..5986c7957199 100644 --- a/drivers/scsi/lpfc/lpfc_mem.c +++ b/drivers/scsi/lpfc/lpfc_mem.c @@ -646,7 +646,6 @@ lpfc_sli4_nvmet_alloc(struct lpfc_hba *phba) } dma_buf->iocbq = lpfc_sli_get_iocbq(phba); - dma_buf->iocbq->iocb_flag = LPFC_IO_NVMET; if (!dma_buf->iocbq) { kfree(dma_buf->context); pci_pool_free(phba->lpfc_drb_pool, dma_buf->dbuf.virt, @@ -658,6 +657,7 @@ lpfc_sli4_nvmet_alloc(struct lpfc_hba *phba) "2621 Ran out of nvmet iocb/WQEs\n"); return NULL; } + dma_buf->iocbq->iocb_flag = LPFC_IO_NVMET; nvmewqe = dma_buf->iocbq; wqe = (union lpfc_wqe128 *)&nvmewqe->wqe; /* Initialize WQE */ -- cgit From d11f54b7d1d40463024be3b40ab7be2c8a84fa43 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:24 -0800 Subject: scsi: lpfc: fix missing spin_unlock on sql_list_lock From: Colin Ian King In the case where sglq is null, the current code just returns without unlocking the spinlock sql_list_lock. Fix this by breaking out of the while loop and the exit path will then unlock and return NULL as was the original intention. Detected by CoverityScan, CID#1411635 ("Missing unlock") Signed-off-by: Colin Ian King Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_sli.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 562a5286bc47..7389c130ffcc 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -952,7 +952,7 @@ __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq) start_sglq = sglq; while (!found) { if (!sglq) - return NULL; + break; if (ndlp && ndlp->active_rrqs_xri_bitmap && test_bit(sglq->sli4_lxritag, ndlp->active_rrqs_xri_bitmap)) { -- cgit From 5d181531bc6169e19a02a27d202cf0e982db9d0e Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:25 -0800 Subject: scsi: lpfc: Fix crash during Hardware error recovery on SLI3 adapters if REG_VPI fails, the driver was incorrectly issuing INIT_VFI (a SLI4 command) on a SLI3 adapter. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index 2d26440e6f2f..d260a1391baf 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -8371,11 +8371,17 @@ lpfc_cmpl_reg_new_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb) spin_lock_irq(shost->host_lock); vport->fc_flag |= FC_VPORT_NEEDS_REG_VPI; spin_unlock_irq(shost->host_lock); - if (vport->port_type == LPFC_PHYSICAL_PORT - && !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) - lpfc_issue_init_vfi(vport); - else + if (mb->mbxStatus == MBX_NOT_FINISHED) + break; + if ((vport->port_type == LPFC_PHYSICAL_PORT) && + !(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG)) { + if (phba->sli_rev == LPFC_SLI_REV4) + lpfc_issue_init_vfi(vport); + else + lpfc_initial_flogi(vport); + } else { lpfc_initial_fdisc(vport); + } break; } } else { -- cgit From 8b3616392d32d2b04ce649caf6684da1b7050d8c Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:26 -0800 Subject: scsi: lpfc: Fix RCTL value on NVME LS request and response NVME LS requests and responses had wrong R_CTL values. Use the FC4 ELS Request and Response defines (defines badly named, they are FC4 LS's) instead of the base ELS values. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvme.c | 2 +- drivers/scsi/lpfc/lpfc_nvmet.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 609a908ea9db..6346d4dee9ff 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -316,7 +316,7 @@ lpfc_nvme_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp, bf_set(wqe_dfctl, &wqe->gen_req.wge_ctl, 0); bf_set(wqe_si, &wqe->gen_req.wge_ctl, 1); bf_set(wqe_la, &wqe->gen_req.wge_ctl, 1); - bf_set(wqe_rctl, &wqe->gen_req.wge_ctl, FC_RCTL_DD_UNSOL_CTL); + bf_set(wqe_rctl, &wqe->gen_req.wge_ctl, FC_RCTL_ELS4_REQ); bf_set(wqe_type, &wqe->gen_req.wge_ctl, FC_TYPE_NVME); /* Word 6 */ diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index e59a0a89d357..6c2221aac394 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -1114,7 +1114,7 @@ lpfc_nvmet_prep_ls_wqe(struct lpfc_hba *phba, bf_set(wqe_dfctl, &wqe->xmit_sequence.wge_ctl, 0); bf_set(wqe_ls, &wqe->xmit_sequence.wge_ctl, 1); bf_set(wqe_la, &wqe->xmit_sequence.wge_ctl, 0); - bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_DD_SOL_CTL); + bf_set(wqe_rctl, &wqe->xmit_sequence.wge_ctl, FC_RCTL_ELS4_REP); bf_set(wqe_type, &wqe->xmit_sequence.wge_ctl, FC_TYPE_NVME); /* Word 6 */ -- cgit From b06a622ffe8dddcc09dad23dc768f7d1540fb4d6 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:27 -0800 Subject: scsi: lpfc: Fix NVME CMD IU byte swapped word 1 problem Word 1 in NVME CMD IU appears byte swapped from value placed in WQE Should be Big Endian value in WQE word 16 Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvme.c | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 6346d4dee9ff..bf3ccc5d59ac 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -620,15 +620,15 @@ lpfc_nvme_adj_fcp_sgls(struct lpfc_vport *vport, * Embed the payload in the last half of the WQE * WQE words 16-30 get the NVME CMD IU payload * - * WQE Word 16 is already setup with flags - * WQE words 17-19 get payload Words 2-4 + * WQE words 16-19 get payload Words 1-4 * WQE words 20-21 get payload Words 6-7 * WQE words 22-29 get payload Words 16-23 */ - wptr = &wqe->words[17]; /* WQE ptr */ + wptr = &wqe->words[16]; /* WQE ptr */ dptr = (uint32_t *)nCmd->cmdaddr; /* payload ptr */ - dptr += 2; /* Skip Words 0-1 in payload */ + dptr++; /* Skip Word 0 in payload */ + *wptr++ = *dptr++; /* Word 1 */ *wptr++ = *dptr++; /* Word 2 */ *wptr++ = *dptr++; /* Word 3 */ *wptr++ = *dptr++; /* Word 4 */ @@ -978,9 +978,6 @@ lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, bf_set(wqe_cmd_type, &wqe->generic.wqe_com, NVME_WRITE_CMD); - /* Word 16 */ - wqe->words[16] = LPFC_NVME_EMBED_WRITE; - phba->fc4NvmeOutputRequests++; } else { /* Word 7 */ @@ -1002,9 +999,6 @@ lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, bf_set(wqe_cmd_type, &wqe->generic.wqe_com, NVME_READ_CMD); - /* Word 16 */ - wqe->words[16] = LPFC_NVME_EMBED_READ; - phba->fc4NvmeInputRequests++; } } else { @@ -1026,9 +1020,6 @@ lpfc_nvme_prep_io_cmd(struct lpfc_vport *vport, /* Word 11 */ bf_set(wqe_cmd_type, &wqe->generic.wqe_com, NVME_READ_CMD); - /* Word 16 */ - wqe->words[16] = LPFC_NVME_EMBED_CMD; - phba->fc4NvmeControlRequests++; } /* -- cgit From a5068b46958870633ea340692f301507ef78d00b Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:28 -0800 Subject: scsi: lpfc: Fix IO submission if WQ is full For both initiator and target: if WQ is full, return -EBUSY. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvme.c | 2 +- drivers/scsi/lpfc/lpfc_nvmet.c | 5 ++++- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index bf3ccc5d59ac..e1bf31eca845 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -1310,7 +1310,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport, "sid: x%x did: x%x oxid: x%x\n", ret, vport->fc_myDID, ndlp->nlp_DID, lpfc_ncmd->cur_iocbq.sli4_xritag); - ret = -EINVAL; + ret = -EBUSY; goto out_free_nvme_buf; } diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 6c2221aac394..735e2ba70198 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -571,6 +571,7 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, "6102 Bad state IO x%x aborted\n", ctxp->oxid); + rc = -ENXIO; goto aerr; } @@ -580,6 +581,7 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, "6152 FCP Drop IO x%x: Prep\n", ctxp->oxid); + rc = -ENXIO; goto aerr; } @@ -618,8 +620,9 @@ lpfc_nvmet_xmt_fcp_op(struct nvmet_fc_target_port *tgtport, ctxp->wqeq->hba_wqidx = 0; nvmewqeq->context2 = NULL; nvmewqeq->context3 = NULL; + rc = -EBUSY; aerr: - return -ENXIO; + return rc; } static void -- cgit From 3ebd9b4701ef77358030a0ef9cb6586db2149712 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:29 -0800 Subject: scsi: lpfc: Fix nvme allocation bug on failed nvme_fc_register_localport nvme bufs get allocated even when the registration fails. Move allocation into the rsgistration success path. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_nvme.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index e1bf31eca845..26cde7c040ba 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -2164,10 +2164,10 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport) lport->vport = vport; INIT_LIST_HEAD(&lport->rport_list); vport->nvmei_support = 1; + len = lpfc_new_nvme_buf(vport, phba->sli4_hba.nvme_xri_max); + vport->phba->total_nvme_bufs += len; } - len = lpfc_new_nvme_buf(vport, phba->sli4_hba.nvme_xri_max); - vport->phba->total_nvme_bufs += len; return ret; } -- cgit From 318083ad9230ff13cdac34ae4c4135e0c4e2d9ad Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:30 -0800 Subject: scsi: lpfc: add NVME exchange aborts previous code did little more than log a message. This patch adds abort path support, modeled after the SCSI code paths. Currently addresses only the initiator path. Target path under development, but stubbed out. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_hbadisc.c | 2 ++ drivers/scsi/lpfc/lpfc_init.c | 7 +++++ drivers/scsi/lpfc/lpfc_nvme.c | 64 ++++++++++++++++++++++++++++++++++++---- drivers/scsi/lpfc/lpfc_nvme.h | 1 + drivers/scsi/lpfc/lpfc_nvmet.c | 21 +++++++++++-- drivers/scsi/lpfc/lpfc_sli.c | 51 ++++++++++++++++++++++++++++++-- drivers/scsi/lpfc/lpfc_sli4.h | 6 ++++ 8 files changed, 143 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 0bba2e30b4f0..de6cd57dc7f6 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -692,6 +692,7 @@ struct lpfc_hba { * capability */ #define HBA_NVME_IOQ_FLUSH 0x80000 /* NVME IO queues flushed. */ +#define NVME_XRI_ABORT_EVENT 0x100000 uint32_t fcp_ring_in_use; /* When polling test if intr-hndlr active*/ struct lpfc_dmabuf slim2p; diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index 2612dac75186..bd8635d303d2 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -641,6 +641,8 @@ lpfc_work_done(struct lpfc_hba *phba) lpfc_handle_rrq_active(phba); if (phba->hba_flag & FCP_XRI_ABORT_EVENT) lpfc_sli4_fcp_xri_abort_event_proc(phba); + if (phba->hba_flag & NVME_XRI_ABORT_EVENT) + lpfc_sli4_nvme_xri_abort_event_proc(phba); if (phba->hba_flag & ELS_XRI_ABORT_EVENT) lpfc_sli4_els_xri_abort_event_proc(phba); if (phba->hba_flag & ASYNC_EVENT) diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index f395f2e4aa97..a0cba631869e 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -5723,6 +5723,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) /* Initialize the Abort nvme buffer list used by driver */ spin_lock_init(&phba->sli4_hba.abts_nvme_buf_list_lock); INIT_LIST_HEAD(&phba->sli4_hba.lpfc_abts_nvme_buf_list); + /* Fast-path XRI aborted CQ Event work queue list */ + INIT_LIST_HEAD(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue); } /* This abort list used by worker thread */ @@ -8960,6 +8962,11 @@ lpfc_sli4_cq_event_release_all(struct lpfc_hba *phba) /* Pending ELS XRI abort events */ list_splice_init(&phba->sli4_hba.sp_els_xri_aborted_work_queue, &cqelist); + if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { + /* Pending NVME XRI abort events */ + list_splice_init(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, + &cqelist); + } /* Pending asynnc events */ list_splice_init(&phba->sli4_hba.sp_asynce_work_queue, &cqelist); diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index 26cde7c040ba..b9012fee1632 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -1277,6 +1277,7 @@ lpfc_nvme_fcp_io_submit(struct nvme_fc_local_port *pnvme_lport, pnvme_fcreq->private = (void *)lpfc_ncmd; lpfc_ncmd->nvmeCmd = pnvme_fcreq; lpfc_ncmd->nrport = rport; + lpfc_ncmd->ndlp = ndlp; lpfc_ncmd->start_time = jiffies; lpfc_nvme_prep_io_cmd(vport, lpfc_ncmd, ndlp); @@ -1812,10 +1813,10 @@ lpfc_post_nvme_sgl_list(struct lpfc_hba *phba, pdma_phys_sgl1, cur_xritag); if (status) { /* failure, put on abort nvme list */ - lpfc_ncmd->exch_busy = 1; + lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; } else { /* success, put on NVME buffer list */ - lpfc_ncmd->exch_busy = 0; + lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; lpfc_ncmd->status = IOSTAT_SUCCESS; num_posted++; } @@ -1845,10 +1846,10 @@ lpfc_post_nvme_sgl_list(struct lpfc_hba *phba, struct lpfc_nvme_buf, list); if (status) { /* failure, put on abort nvme list */ - lpfc_ncmd->exch_busy = 1; + lpfc_ncmd->flags |= LPFC_SBUF_XBUSY; } else { /* success, put on NVME buffer list */ - lpfc_ncmd->exch_busy = 0; + lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; lpfc_ncmd->status = IOSTAT_SUCCESS; num_posted++; } @@ -2090,7 +2091,7 @@ lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd) unsigned long iflag = 0; lpfc_ncmd->nonsg_phys = 0; - if (lpfc_ncmd->exch_busy) { + if (lpfc_ncmd->flags & LPFC_SBUF_XBUSY) { spin_lock_irqsave(&phba->sli4_hba.abts_nvme_buf_list_lock, iflag); lpfc_ncmd->nvmeCmd = NULL; @@ -2453,3 +2454,56 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) "6168: State error: lport %p, rport%p FCID x%06x\n", vport->localport, ndlp->rport, ndlp->nlp_DID); } + +/** + * lpfc_sli4_nvme_xri_aborted - Fast-path process of NVME xri abort + * @phba: pointer to lpfc hba data structure. + * @axri: pointer to the fcp xri abort wcqe structure. + * + * This routine is invoked by the worker thread to process a SLI4 fast-path + * FCP aborted xri. + **/ +void +lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba, + struct sli4_wcqe_xri_aborted *axri) +{ + uint16_t xri = bf_get(lpfc_wcqe_xa_xri, axri); + uint16_t rxid = bf_get(lpfc_wcqe_xa_remote_xid, axri); + struct lpfc_nvme_buf *lpfc_ncmd, *next_lpfc_ncmd; + struct lpfc_nodelist *ndlp; + unsigned long iflag = 0; + int rrq_empty = 0; + + if (!(phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) + return; + spin_lock_irqsave(&phba->hbalock, iflag); + spin_lock(&phba->sli4_hba.abts_nvme_buf_list_lock); + list_for_each_entry_safe(lpfc_ncmd, next_lpfc_ncmd, + &phba->sli4_hba.lpfc_abts_nvme_buf_list, + list) { + if (lpfc_ncmd->cur_iocbq.sli4_xritag == xri) { + list_del(&lpfc_ncmd->list); + lpfc_ncmd->flags &= ~LPFC_SBUF_XBUSY; + lpfc_ncmd->status = IOSTAT_SUCCESS; + spin_unlock( + &phba->sli4_hba.abts_nvme_buf_list_lock); + + rrq_empty = list_empty(&phba->active_rrq_list); + spin_unlock_irqrestore(&phba->hbalock, iflag); + ndlp = lpfc_ncmd->ndlp; + if (ndlp) { + lpfc_set_rrq_active( + phba, ndlp, + lpfc_ncmd->cur_iocbq.sli4_lxritag, + rxid, 1); + lpfc_sli4_abts_err_handler(phba, ndlp, axri); + } + lpfc_release_nvme_buf(phba, lpfc_ncmd); + if (rrq_empty) + lpfc_worker_wake_up(phba); + return; + } + } + spin_unlock(&phba->sli4_hba.abts_nvme_buf_list_lock); + spin_unlock_irqrestore(&phba->hbalock, iflag); +} diff --git a/drivers/scsi/lpfc/lpfc_nvme.h b/drivers/scsi/lpfc/lpfc_nvme.h index b2fae5e813f8..1347deb8dd6c 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.h +++ b/drivers/scsi/lpfc/lpfc_nvme.h @@ -57,6 +57,7 @@ struct lpfc_nvme_buf { struct list_head list; struct nvmefc_fcp_req *nvmeCmd; struct lpfc_nvme_rport *nrport; + struct lpfc_nodelist *ndlp; uint32_t timeout; diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 735e2ba70198..48ce9858bc11 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -734,6 +734,21 @@ lpfc_nvmet_update_targetport(struct lpfc_hba *phba) return 0; } +/** + * lpfc_sli4_nvmet_xri_aborted - Fast-path process of nvmet xri abort + * @phba: pointer to lpfc hba data structure. + * @axri: pointer to the nvmet xri abort wcqe structure. + * + * This routine is invoked by the worker thread to process a SLI4 fast-path + * NVMET aborted xri. + **/ +void +lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba, + struct sli4_wcqe_xri_aborted *axri) +{ + /* TODO: work in progress */ +} + void lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba) { @@ -958,7 +973,7 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba, atomic_inc(&tgtp->rcv_fcp_cmd_drop); lpfc_printf_log(phba, KERN_ERR, LOG_NVME_IOERR, - "6159 FCP Drop IO x%x: nvmet_fc_rcv_fcp_req x%x\n", + "6159 FCP Drop IO x%x: err x%x\n", ctxp->oxid, rc); dropit: lpfc_nvmeio_data(phba, "NVMET FCP DROP: xri x%x sz %d from %06x\n", @@ -1683,8 +1698,8 @@ lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp; lpfc_printf_log(phba, KERN_INFO, LOG_NVME_ABTS, - "6067 %s: Entrypoint: sid %x xri %x\n", __func__, - sid, xri); + "6067 Abort: sid %x xri x%x/x%x\n", + sid, xri, ctxp->wqeq->sli4_xritag); tgtp = (struct lpfc_nvmet_tgtport *)phba->targetport->private; diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 7389c130ffcc..8a606d0d2c79 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -12212,6 +12212,41 @@ void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *phba) } } +/** + * lpfc_sli4_nvme_xri_abort_event_proc - Process nvme xri abort event + * @phba: pointer to lpfc hba data structure. + * + * This routine is invoked by the worker thread to process all the pending + * SLI4 NVME abort XRI events. + **/ +void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba) +{ + struct lpfc_cq_event *cq_event; + + /* First, declare the fcp xri abort event has been handled */ + spin_lock_irq(&phba->hbalock); + phba->hba_flag &= ~NVME_XRI_ABORT_EVENT; + spin_unlock_irq(&phba->hbalock); + /* Now, handle all the fcp xri abort events */ + while (!list_empty(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue)) { + /* Get the first event from the head of the event queue */ + spin_lock_irq(&phba->hbalock); + list_remove_head(&phba->sli4_hba.sp_nvme_xri_aborted_work_queue, + cq_event, struct lpfc_cq_event, list); + spin_unlock_irq(&phba->hbalock); + /* Notify aborted XRI for NVME work queue */ + if (phba->nvmet_support) { + lpfc_sli4_nvmet_xri_aborted(phba, + &cq_event->cqe.wcqe_axri); + } else { + lpfc_sli4_nvme_xri_aborted(phba, + &cq_event->cqe.wcqe_axri); + } + /* Free the event processed back to the free pool */ + lpfc_sli4_cq_event_release(phba, cq_event); + } +} + /** * lpfc_sli4_els_xri_abort_event_proc - Process els xri abort event * @phba: pointer to lpfc hba data structure. @@ -12709,10 +12744,22 @@ lpfc_sli4_sp_handle_abort_xri_wcqe(struct lpfc_hba *phba, spin_unlock_irqrestore(&phba->hbalock, iflags); workposted = true; break; + case LPFC_NVME: + spin_lock_irqsave(&phba->hbalock, iflags); + list_add_tail(&cq_event->list, + &phba->sli4_hba.sp_nvme_xri_aborted_work_queue); + /* Set the nvme xri abort event flag */ + phba->hba_flag |= NVME_XRI_ABORT_EVENT; + spin_unlock_irqrestore(&phba->hbalock, iflags); + workposted = true; + break; default: lpfc_printf_log(phba, KERN_ERR, LOG_SLI, - "0603 Invalid work queue CQE subtype (x%x)\n", - cq->subtype); + "0603 Invalid CQ subtype %d: " + "%08x %08x %08x %08x\n", + cq->subtype, wcqe->word0, wcqe->parameter, + wcqe->word2, wcqe->word3); + lpfc_sli4_cq_event_release(phba, cq_event); workposted = false; break; } diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h index 91153c9f6d18..710458cf11d6 100644 --- a/drivers/scsi/lpfc/lpfc_sli4.h +++ b/drivers/scsi/lpfc/lpfc_sli4.h @@ -642,6 +642,7 @@ struct lpfc_sli4_hba { struct list_head sp_asynce_work_queue; struct list_head sp_fcp_xri_aborted_work_queue; struct list_head sp_els_xri_aborted_work_queue; + struct list_head sp_nvme_xri_aborted_work_queue; struct list_head sp_unsol_work_queue; struct lpfc_sli4_link link_state; struct lpfc_sli4_lnk_info lnk_info; @@ -794,9 +795,14 @@ void lpfc_sli4_fcf_redisc_event_proc(struct lpfc_hba *); int lpfc_sli4_resume_rpi(struct lpfc_nodelist *, void (*)(struct lpfc_hba *, LPFC_MBOXQ_t *), void *); void lpfc_sli4_fcp_xri_abort_event_proc(struct lpfc_hba *); +void lpfc_sli4_nvme_xri_abort_event_proc(struct lpfc_hba *phba); void lpfc_sli4_els_xri_abort_event_proc(struct lpfc_hba *); void lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *, struct sli4_wcqe_xri_aborted *); +void lpfc_sli4_nvme_xri_aborted(struct lpfc_hba *phba, + struct sli4_wcqe_xri_aborted *axri); +void lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba, + struct sli4_wcqe_xri_aborted *axri); void lpfc_sli4_els_xri_aborted(struct lpfc_hba *, struct sli4_wcqe_xri_aborted *); void lpfc_sli4_vport_delete_els_xri_aborted(struct lpfc_vport *); -- cgit From 96418b5e2c8867da3279d877f5d1ffabfe460c3d Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:31 -0800 Subject: scsi: lpfc: Fix eh_deadline setting for sli3 adapters. A previous change unilaterally removed the hba reset entry point from the sli3 host template. This was done to allow tape devices being used for back up from being removed. Why was this done ? When there was non-responding device on the fabric, the error escalation policy would escalate to the reset handler. When the reset handler was called, it would reset the adapter, dropping link, thus logging out and terminating all i/o's - on any target. If there was a tape device on the same adapter that wasn't in error, it would kill the tape i/o's, effectively killing the tape device state. With the reset point removed, the adapter reset avoided the fabric logout, allowing the other devices to continue to operate unaffected. A hack - yes. Hint: we really need a transport I_T nexus reset callback added to the eh process (in between the SCSI target reset and hba reset points), so a fc logout could occur to the one bad target only and stop the error escalation process. This patch commonizes the approach so it can be used for sli3 and sli4 adapters, but mandates the admin, via module parameter, specifically identify which adapters the resets are to be removed for. Additionally, bus_reset, which sends Target Reset TMFs to all targets, is also removed from the template as it too has the same effect as the adapter reset. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Reviewed-by: Laurence Oberman Tested-by: Laurence Oberman Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc.h | 1 + drivers/scsi/lpfc/lpfc_attr.c | 6 +++++ drivers/scsi/lpfc/lpfc_crtn.h | 4 ++- drivers/scsi/lpfc/lpfc_init.c | 61 ++++++++++++++++++++++++++++++++++++++++--- drivers/scsi/lpfc/lpfc_scsi.c | 3 +-- 5 files changed, 69 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index de6cd57dc7f6..763f32dd2d23 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -99,6 +99,7 @@ struct lpfc_sli2_slim; #define FC_MAX_ADPTMSG 64 #define MAX_HBAEVT 32 +#define MAX_HBAS_NO_RESET 16 /* Number of MSI-X vectors the driver uses */ #define LPFC_MSIX_VECTORS 2 diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index 4114cf4308d0..b741dcb8ee64 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -3010,6 +3010,12 @@ MODULE_PARM_DESC(lpfc_poll, "FCP ring polling mode control:" static DEVICE_ATTR(lpfc_poll, S_IRUGO | S_IWUSR, lpfc_poll_show, lpfc_poll_store); +int lpfc_no_hba_reset_cnt; +unsigned long lpfc_no_hba_reset[MAX_HBAS_NO_RESET] = { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; +module_param_array(lpfc_no_hba_reset, ulong, &lpfc_no_hba_reset_cnt, 0444); +MODULE_PARM_DESC(lpfc_no_hba_reset, "WWPN of HBAs that should not be reset"); + LPFC_ATTR(sli_mode, 0, 0, 3, "SLI mode selector:" " 0 - auto (SLI-3 if supported)," diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h index 843dd73004da..54e6ac42fbcd 100644 --- a/drivers/scsi/lpfc/lpfc_crtn.h +++ b/drivers/scsi/lpfc/lpfc_crtn.h @@ -384,7 +384,7 @@ void lpfc_free_sysfs_attr(struct lpfc_vport *); extern struct device_attribute *lpfc_hba_attrs[]; extern struct device_attribute *lpfc_vport_attrs[]; extern struct scsi_host_template lpfc_template; -extern struct scsi_host_template lpfc_template_s3; +extern struct scsi_host_template lpfc_template_no_hr; extern struct scsi_host_template lpfc_template_nvme; extern struct scsi_host_template lpfc_vport_template; extern struct fc_function_template lpfc_transport_functions; @@ -554,3 +554,5 @@ void lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba, struct lpfc_wcqe_complete *abts_cmpl); extern int lpfc_enable_nvmet_cnt; extern unsigned long long lpfc_enable_nvmet[]; +extern int lpfc_no_hba_reset_cnt; +extern unsigned long lpfc_no_hba_reset[]; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index a0cba631869e..4fa21a9fd883 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -3555,6 +3555,44 @@ out_free_mem: return rc; } +static uint64_t +lpfc_get_wwpn(struct lpfc_hba *phba) +{ + uint64_t wwn; + int rc; + LPFC_MBOXQ_t *mboxq; + MAILBOX_t *mb; + + + mboxq = (LPFC_MBOXQ_t *) mempool_alloc(phba->mbox_mem_pool, + GFP_KERNEL); + if (!mboxq) + return (uint64_t)-1; + + /* First get WWN of HBA instance */ + lpfc_read_nv(phba, mboxq); + rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL); + if (rc != MBX_SUCCESS) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6019 Mailbox failed , mbxCmd x%x " + "READ_NV, mbxStatus x%x\n", + bf_get(lpfc_mqe_command, &mboxq->u.mqe), + bf_get(lpfc_mqe_status, &mboxq->u.mqe)); + mempool_free(mboxq, phba->mbox_mem_pool); + return (uint64_t) -1; + } + mb = &mboxq->u.mb; + memcpy(&wwn, (char *)mb->un.varRDnvp.portname, sizeof(uint64_t)); + /* wwn is WWPN of HBA instance */ + mempool_free(mboxq, phba->mbox_mem_pool); + if (phba->sli_rev == LPFC_SLI_REV4) + return be64_to_cpu(wwn); + else + return (((wwn & 0xffffffff00000000) >> 32) | + ((wwn & 0x00000000ffffffff) << 32)); + +} + /** * lpfc_sli4_nvme_sgl_update - update xri-sgl sizing and mapping * @phba: pointer to lpfc hba data structure. @@ -3676,17 +3714,32 @@ lpfc_create_port(struct lpfc_hba *phba, int instance, struct device *dev) struct lpfc_vport *vport; struct Scsi_Host *shost = NULL; int error = 0; + int i; + uint64_t wwn; + bool use_no_reset_hba = false; + + wwn = lpfc_get_wwpn(phba); + + for (i = 0; i < lpfc_no_hba_reset_cnt; i++) { + if (wwn == lpfc_no_hba_reset[i]) { + lpfc_printf_log(phba, KERN_ERR, LOG_SLI, + "6020 Setting use_no_reset port=%llx\n", + wwn); + use_no_reset_hba = true; + break; + } + } if (phba->cfg_enable_fc4_type & LPFC_ENABLE_FCP) { if (dev != &phba->pcidev->dev) { shost = scsi_host_alloc(&lpfc_vport_template, sizeof(struct lpfc_vport)); } else { - if (phba->sli_rev == LPFC_SLI_REV4) + if (!use_no_reset_hba) shost = scsi_host_alloc(&lpfc_template, sizeof(struct lpfc_vport)); else - shost = scsi_host_alloc(&lpfc_template_s3, + shost = scsi_host_alloc(&lpfc_template_no_hr, sizeof(struct lpfc_vport)); } } else if (phba->cfg_enable_fc4_type & LPFC_ENABLE_NVME) { @@ -5472,7 +5525,8 @@ lpfc_sli_driver_resource_setup(struct lpfc_hba *phba) /* Initialize the host templates the configured values. */ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; - lpfc_template_s3.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; /* There are going to be 2 reserved BDEs: 1 FCP cmnd + 1 FCP rsp */ if (phba->cfg_enable_bg) { @@ -5693,6 +5747,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba) /* Initialize the host templates with the updated values. */ lpfc_vport_template.sg_tablesize = phba->cfg_sg_seg_cnt; lpfc_template.sg_tablesize = phba->cfg_sg_seg_cnt; + lpfc_template_no_hr.sg_tablesize = phba->cfg_sg_seg_cnt; if (phba->cfg_sg_dma_buf_size <= LPFC_MIN_SG_SLI4_BUF_SZ) phba->cfg_sg_dma_buf_size = LPFC_MIN_SG_SLI4_BUF_SZ; diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index 9d6384af9fce..bcfd6d6ab16d 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5953,7 +5953,7 @@ struct scsi_host_template lpfc_template_nvme = { .track_queue_depth = 0, }; -struct scsi_host_template lpfc_template_s3 = { +struct scsi_host_template lpfc_template_no_hr = { .module = THIS_MODULE, .name = LPFC_DRIVER_NAME, .proc_name = LPFC_DRIVER_NAME, @@ -6015,7 +6015,6 @@ struct scsi_host_template lpfc_vport_template = { .eh_abort_handler = lpfc_abort_handler, .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, - .eh_bus_reset_handler = lpfc_bus_reset_handler, .slave_alloc = lpfc_slave_alloc, .slave_configure = lpfc_slave_configure, .slave_destroy = lpfc_slave_destroy, -- cgit From 856984b71cefab1580e9439e5382db1247d689b0 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:32 -0800 Subject: scsi: lpfc: add transport eh_timed_out reference Christoph's prior patch missed the template for the sli3 adapters, which is now the "no host reset" template. Add the transport eh_timed_out handler to the no host reset template Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_scsi.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index bcfd6d6ab16d..54fd0c81ceaf 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -5959,6 +5959,7 @@ struct scsi_host_template lpfc_template_no_hr = { .proc_name = LPFC_DRIVER_NAME, .info = lpfc_info, .queuecommand = lpfc_queuecommand, + .eh_timed_out = fc_eh_timed_out, .eh_abort_handler = lpfc_abort_handler, .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, -- cgit From 166d721120c1cf768af11706c3e0411324bf138f Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:33 -0800 Subject: scsi: lpfc: Rework lpfc Kconfig for NVME options Reworked Kconfig so that lfpc only requires the scsi stack. NVME Initiator and NVME Target support can be enabled if the other NVMe subsystems have been enabled. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/Kconfig | 19 ++++++++++++++++--- drivers/scsi/lpfc/lpfc_nvme.c | 18 +++++++++++++++--- drivers/scsi/lpfc/lpfc_nvmet.c | 10 ++++++++++ 3 files changed, 41 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig index 230043c1c90f..4bf55b5d78be 100644 --- a/drivers/scsi/Kconfig +++ b/drivers/scsi/Kconfig @@ -1241,19 +1241,32 @@ config SCSI_LPFC tristate "Emulex LightPulse Fibre Channel Support" depends on PCI && SCSI depends on SCSI_FC_ATTRS - depends on NVME_FC && NVME_TARGET_FC select CRC_T10DIF - help + ---help--- This lpfc driver supports the Emulex LightPulse Family of Fibre Channel PCI host adapters. config SCSI_LPFC_DEBUG_FS bool "Emulex LightPulse Fibre Channel debugfs Support" depends on SCSI_LPFC && DEBUG_FS - help + ---help--- This makes debugging information from the lpfc driver available via the debugfs filesystem. +config LPFC_NVME_INITIATOR + bool "Emulex LightPulse Fibre Channel NVME Initiator Support" + depends on SCSI_LPFC && NVME_FC + ---help--- + This enables NVME Initiator support in the Emulex lpfc driver. + +config LPFC_NVME_TARGET + bool "Emulex LightPulse Fibre Channel NVME Initiator Support" + depends on SCSI_LPFC && NVME_TARGET_FC + ---help--- + This enables NVME Target support in the Emulex lpfc driver. + Target enablement must still be enabled on a per adapter + basis by module parameters. + config SCSI_SIM710 tristate "Simple 53c710 SCSI support (Compaq, NCR machines)" depends on (EISA || MCA) && SCSI diff --git a/drivers/scsi/lpfc/lpfc_nvme.c b/drivers/scsi/lpfc/lpfc_nvme.c index b9012fee1632..0a4c19081409 100644 --- a/drivers/scsi/lpfc/lpfc_nvme.c +++ b/drivers/scsi/lpfc/lpfc_nvme.c @@ -2127,11 +2127,12 @@ lpfc_release_nvme_buf(struct lpfc_hba *phba, struct lpfc_nvme_buf *lpfc_ncmd) int lpfc_nvme_create_localport(struct lpfc_vport *vport) { + int ret = 0; struct lpfc_hba *phba = vport->phba; struct nvme_fc_port_info nfcp_info; struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; - int len, ret = 0; + int len; /* Initialize this localport instance. The vport wwn usage ensures * that NPIV is accounted for. @@ -2148,8 +2149,12 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport) /* localport is allocated from the stack, but the registration * call allocates heap memory as well as the private area. */ +#ifdef CONFIG_LPFC_NVME_INITIATOR ret = nvme_fc_register_localport(&nfcp_info, &lpfc_nvme_template, &vport->phba->pcidev->dev, &localport); +#else + ret = -ENOMEM; +#endif if (!ret) { lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME | LOG_NVME_DISC, "6005 Successfully registered local " @@ -2185,6 +2190,7 @@ lpfc_nvme_create_localport(struct lpfc_vport *vport) void lpfc_nvme_destroy_localport(struct lpfc_vport *vport) { +#ifdef CONFIG_LPFC_NVME_INITIATOR struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; struct lpfc_nvme_rport *rport = NULL, *rport_next = NULL; @@ -2200,7 +2206,6 @@ lpfc_nvme_destroy_localport(struct lpfc_vport *vport) lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME, "6011 Destroying NVME localport %p\n", localport); - list_for_each_entry_safe(rport, rport_next, &lport->rport_list, list) { /* The last node ref has to get released now before the rport * private memory area is released by the transport. @@ -2214,6 +2219,7 @@ lpfc_nvme_destroy_localport(struct lpfc_vport *vport) "6008 rport fail destroy %x\n", ret); wait_for_completion_timeout(&rport->rport_unreg_done, 5); } + /* lport's rport list is clear. Unregister * lport and release resources. */ @@ -2237,6 +2243,7 @@ lpfc_nvme_destroy_localport(struct lpfc_vport *vport) "Failed, status x%x\n", ret); } +#endif } void @@ -2267,6 +2274,7 @@ lpfc_nvme_update_localport(struct lpfc_vport *vport) int lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { +#ifdef CONFIG_LPFC_NVME_INITIATOR int ret = 0; struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; @@ -2340,7 +2348,6 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) rpinfo.port_role |= FC_PORT_ROLE_NVME_INITIATOR; rpinfo.port_name = wwn_to_u64(ndlp->nlp_portname.u.wwn); rpinfo.node_name = wwn_to_u64(ndlp->nlp_nodename.u.wwn); - ret = nvme_fc_register_remoteport(localport, &rpinfo, &remote_port); if (!ret) { @@ -2376,6 +2383,9 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) ndlp->nlp_type, ndlp->nlp_DID, ndlp); } return ret; +#else + return 0; +#endif } /* lpfc_nvme_unregister_port - unbind the DID and port_role from this rport. @@ -2393,6 +2403,7 @@ lpfc_nvme_register_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) void lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) { +#ifdef CONFIG_LPFC_NVME_INITIATOR int ret; struct nvme_fc_local_port *localport; struct lpfc_nvme_lport *lport; @@ -2450,6 +2461,7 @@ lpfc_nvme_unregister_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) return; input_err: +#endif lpfc_printf_vlog(vport, KERN_ERR, LOG_NVME_DISC, "6168: State error: lport %p, rport%p FCID x%06x\n", vport->localport, ndlp->rport, ndlp->nlp_DID); diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index 48ce9858bc11..a69ca6ea1d6c 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -671,9 +671,13 @@ lpfc_nvmet_create_targetport(struct lpfc_hba *phba) lpfc_tgttemplate.target_features = NVMET_FCTGTFEAT_READDATA_RSP | NVMET_FCTGTFEAT_NEEDS_CMD_CPUSCHED; +#ifdef CONFIG_LPFC_NVME_TARGET error = nvmet_fc_register_targetport(&pinfo, &lpfc_tgttemplate, &phba->pcidev->dev, &phba->targetport); +#else + error = -ENOMEM; +#endif if (error) { lpfc_printf_log(phba, KERN_ERR, LOG_NVME_DISC, "6025 Cannot register NVME targetport " @@ -752,6 +756,7 @@ lpfc_sli4_nvmet_xri_aborted(struct lpfc_hba *phba, void lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba) { +#ifdef CONFIG_LPFC_NVME_TARGET struct lpfc_nvmet_tgtport *tgtp; if (phba->nvmet_support == 0) @@ -763,6 +768,7 @@ lpfc_nvmet_destroy_targetport(struct lpfc_hba *phba) wait_for_completion_timeout(&tgtp->tport_unreg_done, 5); } phba->targetport = NULL; +#endif } /** @@ -782,6 +788,7 @@ static void lpfc_nvmet_unsol_ls_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring, struct hbq_dmabuf *nvmebuf) { +#ifdef CONFIG_LPFC_NVME_TARGET struct lpfc_nvmet_tgtport *tgtp; struct fc_frame_header *fc_hdr; struct lpfc_nvmet_rcv_ctx *ctxp; @@ -862,6 +869,7 @@ dropit: atomic_inc(&tgtp->xmt_ls_abort); lpfc_nvmet_unsol_ls_issue_abort(phba, ctxp, sid, oxid); +#endif } /** @@ -883,6 +891,7 @@ lpfc_nvmet_unsol_fcp_buffer(struct lpfc_hba *phba, struct rqb_dmabuf *nvmebuf, uint64_t isr_timestamp) { +#ifdef CONFIG_LPFC_NVME_TARGET struct lpfc_nvmet_rcv_ctx *ctxp; struct lpfc_nvmet_tgtport *tgtp; struct fc_frame_header *fc_hdr; @@ -988,6 +997,7 @@ dropit: /* We assume a rcv'ed cmd ALWAYs fits into 1 buffer */ lpfc_nvmet_rq_post(phba, NULL, &nvmebuf->hbuf); } +#endif } /** -- cgit From 43140ca68d1a071ddbe92f10a3256e01701ae390 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:34 -0800 Subject: scsi: lpfc: Rename LPFC_MAX_EQ_DELAY to LPFC_MAX_EQ_DELAY_EQID_CNT Without apriori understanding of what the define is, the name gives a very different impression of what it is (a max delay value for an EQ). Rename the define so it reflects what it is: the number of EQ IDs that can be set in one instance of the MODIFY_EQ_DELAY mbx command. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_attr.c | 3 ++- drivers/scsi/lpfc/lpfc_hw4.h | 4 ++-- drivers/scsi/lpfc/lpfc_init.c | 7 ++----- drivers/scsi/lpfc/lpfc_sli.c | 5 ++++- 4 files changed, 10 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index b741dcb8ee64..fbd3a563be53 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -4457,7 +4457,8 @@ lpfc_fcp_imax_store(struct device *dev, struct device_attribute *attr, return -EINVAL; phba->cfg_fcp_imax = (uint32_t)val; - for (i = 0; i < phba->io_channel_irqs; i++) + + for (i = 0; i < phba->io_channel_irqs; i += LPFC_MAX_EQ_DELAY_EQID_CNT) lpfc_modify_hba_eq_delay(phba, i); return strlen(buf); diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h index cfdb068a3bfc..15277705cb6b 100644 --- a/drivers/scsi/lpfc/lpfc_hw4.h +++ b/drivers/scsi/lpfc/lpfc_hw4.h @@ -1001,7 +1001,7 @@ struct eq_delay_info { uint32_t phase; uint32_t delay_multi; }; -#define LPFC_MAX_EQ_DELAY 8 +#define LPFC_MAX_EQ_DELAY_EQID_CNT 8 struct sgl_page_pairs { uint32_t sgl_pg0_addr_lo; @@ -1070,7 +1070,7 @@ struct lpfc_mbx_modify_eq_delay { union { struct { uint32_t num_eq; - struct eq_delay_info eq[LPFC_MAX_EQ_DELAY]; + struct eq_delay_info eq[LPFC_MAX_EQ_DELAY_EQID_CNT]; } request; struct { uint32_t word0; diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 4fa21a9fd883..c883110178ea 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -8756,12 +8756,9 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba) } } - /* - * Configure EQ delay multipier for interrupt coalescing using - * MODIFY_EQ_DELAY for all EQs created, LPFC_MAX_EQ_DELAY at a time. - */ - for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY) + for (qidx = 0; qidx < io_channel; qidx += LPFC_MAX_EQ_DELAY_EQID_CNT) lpfc_modify_hba_eq_delay(phba, qidx); + return 0; out_destroy: diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c index 8a606d0d2c79..618cdacf13dd 100644 --- a/drivers/scsi/lpfc/lpfc_sli.c +++ b/drivers/scsi/lpfc/lpfc_sli.c @@ -1,3 +1,4 @@ + /******************************************************************* * This file is part of the Emulex Linux Device Driver for * * Fibre Channel Host Bus Adapters. * @@ -13874,6 +13875,8 @@ lpfc_dual_chute_pci_bar_map(struct lpfc_hba *phba, uint16_t pci_barset) * @startq: The starting FCP EQ to modify * * This function sends an MODIFY_EQ_DELAY mailbox command to the HBA. + * The command allows up to LPFC_MAX_EQ_DELAY_EQID_CNT EQ ID's to be + * updated in one mailbox command. * * The @phba struct is used to send mailbox command to HBA. The @startq * is used to get the starting FCP EQ to change. @@ -13926,7 +13929,7 @@ lpfc_modify_hba_eq_delay(struct lpfc_hba *phba, uint32_t startq) eq_delay->u.request.eq[cnt].phase = 0; eq_delay->u.request.eq[cnt].delay_multi = dmult; cnt++; - if (cnt >= LPFC_MAX_EQ_DELAY) + if (cnt >= LPFC_MAX_EQ_DELAY_EQID_CNT) break; } eq_delay->u.request.num_eq = cnt; -- cgit From da6b044a28fe603fe2c3fd908cda8150aa0abe74 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:35 -0800 Subject: scsi: lpfc: correct double print Correct a merge error that had debug data printed twice for the same element Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_debugfs.c | 22 ---------------------- 1 file changed, 22 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index 9f4798e9d938..913eed822cb8 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -3653,17 +3653,6 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf, idiag.ptr_private = phba->sli4_hba.nvmels_cq; goto pass_check; } - /* NVME LS complete queue */ - if (phba->sli4_hba.nvmels_cq && - phba->sli4_hba.nvmels_cq->queue_id == queid) { - /* Sanity check */ - rc = lpfc_idiag_que_param_check( - phba->sli4_hba.nvmels_cq, index, count); - if (rc) - goto error_out; - idiag.ptr_private = phba->sli4_hba.nvmels_cq; - goto pass_check; - } /* FCP complete queue */ if (phba->sli4_hba.fcp_cq) { for (qidx = 0; qidx < phba->cfg_fcp_io_channel; @@ -3738,17 +3727,6 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf, idiag.ptr_private = phba->sli4_hba.nvmels_wq; goto pass_check; } - /* NVME LS work queue */ - if (phba->sli4_hba.nvmels_wq && - phba->sli4_hba.nvmels_wq->queue_id == queid) { - /* Sanity check */ - rc = lpfc_idiag_que_param_check( - phba->sli4_hba.nvmels_wq, index, count); - if (rc) - goto error_out; - idiag.ptr_private = phba->sli4_hba.nvmels_wq; - goto pass_check; - } /* FCP work queue */ if (phba->sli4_hba.fcp_wq) { for (qidx = 0; qidx < phba->cfg_fcp_io_channel; -- cgit From ba3bd6e2a9a2753439a1fd1fe39e8d5162fb3aa9 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:36 -0800 Subject: scsi: lpfc: remove dead sli3 nvme code Remove nvme teardown calls that should not be there on sli3 devices Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_init.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index c883110178ea..661bd25a404a 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -10446,12 +10446,7 @@ lpfc_pci_remove_one_s3(struct pci_dev *pdev) fc_remove_host(shost); scsi_remove_host(shost); - /* Perform ndlp cleanup on the physical port. The nvme and nvmet - * localports are destroyed after to cleanup all transport memory. - */ lpfc_cleanup(vport); - lpfc_nvmet_destroy_targetport(phba); - lpfc_nvme_destroy_localport(vport); /* * Bring down the SLI Layer. This step disable all interrupts, -- cgit From cd46cdedb3238f1f878c42650ec05c6344c7083d Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:37 -0800 Subject: scsi: lpfc: correct rdp diag portnames NVME merge reverted diag port names to the physical port. They should be the vport. Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_els.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c index d260a1391baf..d9c61d030034 100644 --- a/drivers/scsi/lpfc/lpfc_els.c +++ b/drivers/scsi/lpfc/lpfc_els.c @@ -5177,15 +5177,15 @@ lpfc_rdp_res_speed(struct fc_rdp_port_speed_desc *desc, struct lpfc_hba *phba) static uint32_t lpfc_rdp_res_diag_port_names(struct fc_rdp_port_name_desc *desc, - struct lpfc_hba *phba) + struct lpfc_vport *vport) { desc->tag = cpu_to_be32(RDP_PORT_NAMES_DESC_TAG); - memcpy(desc->port_names.wwnn, phba->wwnn, + memcpy(desc->port_names.wwnn, &vport->fc_nodename, sizeof(desc->port_names.wwnn)); - memcpy(desc->port_names.wwpn, phba->wwpn, + memcpy(desc->port_names.wwpn, &vport->fc_portname, sizeof(desc->port_names.wwpn)); desc->length = cpu_to_be32(sizeof(desc->port_names)); @@ -5279,7 +5279,7 @@ lpfc_els_rdp_cmpl(struct lpfc_hba *phba, struct lpfc_rdp_context *rdp_context, len += lpfc_rdp_res_link_error((struct fc_rdp_link_error_status_desc *) (len + pcmd), &rdp_context->link_stat); len += lpfc_rdp_res_diag_port_names((struct fc_rdp_port_name_desc *) - (len + pcmd), phba); + (len + pcmd), vport); len += lpfc_rdp_res_attach_port_names((struct fc_rdp_port_name_desc *) (len + pcmd), vport, ndlp); len += lpfc_rdp_res_fec_desc((struct fc_fec_rdp_desc *)(len + pcmd), -- cgit From 2ade92ae6d6572858acb2bde6d3664af3ad592e2 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:38 -0800 Subject: scsi: lpfc: code cleanups in NVME initiator base This patch addresses the smatch issues identified by Dan Carpenter in http://www.spinics.net/lists/linux-scsi/msg105663.html The issues are: drivers/scsi/lpfc/lpfc_hbadisc.c:316 lpfc_dev_loss_tmo_handler() warn: we tested 'vport->load_flag & 2' before and it was 'false' Action: removed item from test drivers/scsi/lpfc/lpfc_hbadisc.c:701 lpfc_work_done() warn: test_bit() takes a bit number Action: changed definition so bit number drivers/scsi/lpfc/lpfc_hbadisc.c:2206 lpfc_mbx_cmpl_fcf_scan_read_fcf_rec() error: uninitialized symbol 'vlan_id'. drivers/scsi/lpfc/lpfc_hbadisc.c:2582 lpfc_mbx_cmpl_fcf_rr_read_fcf_rec() error: uninitialized symbol 'vlan_id'. drivers/scsi/lpfc/lpfc_hbadisc.c:2683 lpfc_mbx_cmpl_read_fcf_rec() error: uninitialized symbol 'vlan_id'. Action: initilized value drivers/scsi/lpfc/lpfc_hbadisc.c:4025 lpfc_register_remote_port() error: we previously assumed 'rdata' could be null (see line 4023) Action: refactored check block drivers/scsi/lpfc/lpfc_hbadisc.c:4613 lpfc_sli4_dequeue_nport_iocbs() error: double unlock 'irq:' Action: removed inner irq reference Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc.h | 2 +- drivers/scsi/lpfc/lpfc_hbadisc.c | 17 +++++++++-------- 2 files changed, 10 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h index 763f32dd2d23..257bbdd0f0b8 100644 --- a/drivers/scsi/lpfc/lpfc.h +++ b/drivers/scsi/lpfc/lpfc.h @@ -105,7 +105,7 @@ struct lpfc_sli2_slim; #define LPFC_MSIX_VECTORS 2 /* lpfc wait event data ready flag */ -#define LPFC_DATA_READY (1<<0) +#define LPFC_DATA_READY 0 /* bit 0 */ /* queue dump line buffer size */ #define LPFC_LBUF_SZ 128 diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c index bd8635d303d2..180b072beef6 100644 --- a/drivers/scsi/lpfc/lpfc_hbadisc.c +++ b/drivers/scsi/lpfc/lpfc_hbadisc.c @@ -313,8 +313,7 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp) ndlp->nlp_state, ndlp->nlp_rpi); } - if (!(vport->load_flag & FC_UNLOADING) && - !(ndlp->nlp_flag & NLP_DELAY_TMO) && + if (!(ndlp->nlp_flag & NLP_DELAY_TMO) && !(ndlp->nlp_flag & NLP_NPR_2B_DISC) && (ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) && (ndlp->nlp_state != NLP_STE_REG_LOGIN_ISSUE) && @@ -2175,7 +2174,7 @@ lpfc_mbx_cmpl_fcf_scan_read_fcf_rec(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq) uint32_t boot_flag, addr_mode; uint16_t fcf_index, next_fcf_index; struct lpfc_fcf_rec *fcf_rec = NULL; - uint16_t vlan_id; + uint16_t vlan_id = LPFC_FCOE_NULL_VID; bool select_new_fcf; int rc; @@ -4022,9 +4021,11 @@ lpfc_register_remote_port(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp) rdata = rport->dd_data; /* break the link before dropping the ref */ ndlp->rport = NULL; - if (rdata && rdata->pnode == ndlp) - lpfc_nlp_put(ndlp); - rdata->pnode = NULL; + if (rdata) { + if (rdata->pnode == ndlp) + lpfc_nlp_put(ndlp); + rdata->pnode = NULL; + } /* drop reference for earlier registeration */ put_device(&rport->dev); } @@ -4607,9 +4608,9 @@ lpfc_sli4_dequeue_nport_iocbs(struct lpfc_hba *phba, pring = qp->pring; if (!pring) continue; - spin_lock_irq(&pring->ring_lock); + spin_lock(&pring->ring_lock); __lpfc_dequeue_nport_iocbs(phba, ndlp, pring, dequeue_list); - spin_unlock_irq(&pring->ring_lock); + spin_unlock(&pring->ring_lock); } spin_unlock_irq(&phba->hbalock); } -- cgit From b5ccc7d61c76006f839b41c6f15876342b46cb02 Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:39 -0800 Subject: scsi: lpfc: code cleanups in NVME initiator discovery This patch addresses the smatch issues identified by Dan Carpenter in http://www.spinics.net/lists/linux-scsi/msg105665.html The issues are: drivers/scsi/lpfc/lpfc_ct.c:943 lpfc_cmpl_ct_cmd_gft_id() error: we previously assumed 'ndlp' could be null (see line 928) Action: moved under if check drivers/scsi/lpfc/lpfc_nvmet.c:1694 lpfc_nvmet_unsol_issue_abort() error: we previously assumed 'ndlp' could be null (see line 1690) Action: conditionalized arg in printf stmt drivers/scsi/lpfc/lpfc_nvmet.c:1792 lpfc_nvmet_sol_fcp_issue_abort() error: we previously assumed 'ndlp' could be null (see line 1788) Action: conditionalized arg in printf stmt Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_ct.c | 2 +- drivers/scsi/lpfc/lpfc_nvmet.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index c22bb3f887e1..d3e9af983015 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -939,8 +939,8 @@ lpfc_cmpl_ct_cmd_gft_id(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb, "FC4 x%08x, Data: x%08x x%08x\n", ndlp, did, ndlp->nlp_fc4_type, FC_TYPE_FCP, FC_TYPE_NVME); + ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; } - ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE; lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE); lpfc_issue_els_prli(vport, ndlp, 0); } else diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c index a69ca6ea1d6c..b7739a554fe0 100644 --- a/drivers/scsi/lpfc/lpfc_nvmet.c +++ b/drivers/scsi/lpfc/lpfc_nvmet.c @@ -1720,7 +1720,7 @@ lpfc_nvmet_unsol_issue_abort(struct lpfc_hba *phba, atomic_inc(&tgtp->xmt_abort_rsp_error); lpfc_printf_log(phba, KERN_WARNING, LOG_NVME_ABTS, "6134 Drop ABTS - wrong NDLP state x%x.\n", - ndlp->nlp_state); + (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE); /* No failure to an ABTS request. */ return 0; @@ -1818,7 +1818,7 @@ lpfc_nvmet_sol_fcp_issue_abort(struct lpfc_hba *phba, atomic_inc(&tgtp->xmt_abort_rsp_error); lpfc_printf_log(phba, KERN_WARNING, LOG_NVME_ABTS, "6160 Drop ABTS - wrong NDLP state x%x.\n", - ndlp->nlp_state); + (ndlp) ? ndlp->nlp_state : NLP_STE_MAX_STATE); /* No failure to an ABTS request. */ return 0; -- cgit From eeb810849a20e32aa1b60335e46ea5446ba07e1f Mon Sep 17 00:00:00 2001 From: James Smart Date: Sat, 4 Mar 2017 09:30:40 -0800 Subject: scsi: lpfc: revise version number to 11.2.0.10 Revise lpfc version number to 11.2.0.10 Signed-off-by: Dick Kennedy Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_version.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h index 86c6c9b26b82..d4e95e28f4e3 100644 --- a/drivers/scsi/lpfc/lpfc_version.h +++ b/drivers/scsi/lpfc/lpfc_version.h @@ -20,7 +20,7 @@ * included with this package. * *******************************************************************/ -#define LPFC_DRIVER_VERSION "11.2.0.7" +#define LPFC_DRIVER_VERSION "11.2.0.10" #define LPFC_DRIVER_NAME "lpfc" /* Used for SLI 2/3 */ -- cgit From bb35e4515411396219431fa235bf21bf9c2794e9 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 5 Mar 2017 17:13:31 -0800 Subject: drivers/char/nwbutton: Fix build breakage caused by include file reshuffling Fix: drivers/char/nwbutton.c: In function 'button_sequence_finished': drivers/char/nwbutton.c:134:3: error: implicit declaration of function 'kill_cad_pid' The declaration has been moved from one include file to another. Signed-off-by: Guenter Roeck Cc: Arnd Bergmann Cc: Greg Kroah-Hartman Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Fixes: c3edc4010e9d102 ("sched/headers: Move task_struct::signal and ...") Link: http://lkml.kernel.org/r/1488762811-9022-1-git-send-email-linux@roeck-us.net Signed-off-by: Ingo Molnar --- drivers/char/nwbutton.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c index a5b1eb276c0b..e6d0d271c58c 100644 --- a/drivers/char/nwbutton.c +++ b/drivers/char/nwbutton.c @@ -6,7 +6,7 @@ #include #include -#include +#include #include #include #include -- cgit From 8767b293a4ab6632f9288f34bcf2ab9ba20dca3a Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Thu, 2 Mar 2017 19:56:57 +0100 Subject: rbd: supported_features bus attribute ... so that userspace can generate meaningful error messages and spell out unsupported features that need to be disabled. Signed-off-by: Ilya Dryomov Reviewed-by: Sage Weil --- drivers/block/rbd.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index 4d6807723798..517838b65964 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -120,10 +120,11 @@ static int atomic_dec_return_safe(atomic_t *v) /* Feature bits */ -#define RBD_FEATURE_LAYERING (1<<0) -#define RBD_FEATURE_STRIPINGV2 (1<<1) -#define RBD_FEATURE_EXCLUSIVE_LOCK (1<<2) -#define RBD_FEATURE_DATA_POOL (1<<7) +#define RBD_FEATURE_LAYERING (1ULL<<0) +#define RBD_FEATURE_STRIPINGV2 (1ULL<<1) +#define RBD_FEATURE_EXCLUSIVE_LOCK (1ULL<<2) +#define RBD_FEATURE_DATA_POOL (1ULL<<7) + #define RBD_FEATURES_ALL (RBD_FEATURE_LAYERING | \ RBD_FEATURE_STRIPINGV2 | \ RBD_FEATURE_EXCLUSIVE_LOCK | \ @@ -499,16 +500,23 @@ static bool rbd_is_lock_owner(struct rbd_device *rbd_dev) return is_lock_owner; } +static ssize_t rbd_supported_features_show(struct bus_type *bus, char *buf) +{ + return sprintf(buf, "0x%llx\n", RBD_FEATURES_SUPPORTED); +} + static BUS_ATTR(add, S_IWUSR, NULL, rbd_add); static BUS_ATTR(remove, S_IWUSR, NULL, rbd_remove); static BUS_ATTR(add_single_major, S_IWUSR, NULL, rbd_add_single_major); static BUS_ATTR(remove_single_major, S_IWUSR, NULL, rbd_remove_single_major); +static BUS_ATTR(supported_features, S_IRUGO, rbd_supported_features_show, NULL); static struct attribute *rbd_bus_attrs[] = { &bus_attr_add.attr, &bus_attr_remove.attr, &bus_attr_add_single_major.attr, &bus_attr_remove_single_major.attr, + &bus_attr_supported_features.attr, NULL, }; -- cgit From 90922a2d03d84de36bf8a9979d62580102f31a92 Mon Sep 17 00:00:00 2001 From: Shanker Donthineni Date: Tue, 7 Mar 2017 08:20:38 -0600 Subject: irqchip/gicv3-its: Add workaround for QDF2400 ITS erratum 0065 On Qualcomm Datacenter Technologies QDF2400 SoCs, the ITS hardware implementation uses 16Bytes for Interrupt Translation Entry (ITE), but reports an incorrect value of 8Bytes in GITS_TYPER.ITTE_size. It might cause kernel memory corruption depending on the number of MSI(x) that are configured and the amount of memory that has been allocated for ITEs in its_create_device(). This patch fixes the potential memory corruption by setting the correct ITE size to 16Bytes. Cc: stable@vger.kernel.org Signed-off-by: Shanker Donthineni Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-gic-v3-its.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'drivers') diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index 23201004fd7a..f77f840d2b5f 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -1601,6 +1601,14 @@ static void __maybe_unused its_enable_quirk_cavium_23144(void *data) its->flags |= ITS_FLAGS_WORKAROUND_CAVIUM_23144; } +static void __maybe_unused its_enable_quirk_qdf2400_e0065(void *data) +{ + struct its_node *its = data; + + /* On QDF2400, the size of the ITE is 16Bytes */ + its->ite_size = 16; +} + static const struct gic_quirk its_quirks[] = { #ifdef CONFIG_CAVIUM_ERRATUM_22375 { @@ -1617,6 +1625,14 @@ static const struct gic_quirk its_quirks[] = { .mask = 0xffff0fff, .init = its_enable_quirk_cavium_23144, }, +#endif +#ifdef CONFIG_QCOM_QDF2400_ERRATUM_0065 + { + .desc = "ITS: QDF2400 erratum 0065", + .iidr = 0x00001070, /* QDF2400 ITS rev 1.x */ + .mask = 0xffffffff, + .init = its_enable_quirk_qdf2400_e0065, + }, #endif { } -- cgit From 4b9de5da7e120c7f02395da729f0ec77ce7a6044 Mon Sep 17 00:00:00 2001 From: Franck Demathieu Date: Mon, 6 Mar 2017 14:41:06 +0100 Subject: irqchip/crossbar: Fix incorrect type of register size The 'size' variable is unsigned according to the dt-bindings. As this variable is used as integer in other places, create a new variable that allows to fix the following sparse issue (-Wtypesign): drivers/irqchip/irq-crossbar.c:279:52: warning: incorrect type in argument 3 (different signedness) drivers/irqchip/irq-crossbar.c:279:52: expected unsigned int [usertype] *out_value drivers/irqchip/irq-crossbar.c:279:52: got int * Signed-off-by: Franck Demathieu Signed-off-by: Marc Zyngier --- drivers/irqchip/irq-crossbar.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c index 05bbf171df37..1070b7b959f2 100644 --- a/drivers/irqchip/irq-crossbar.c +++ b/drivers/irqchip/irq-crossbar.c @@ -199,7 +199,7 @@ static const struct irq_domain_ops crossbar_domain_ops = { static int __init crossbar_of_init(struct device_node *node) { int i, size, reserved = 0; - u32 max = 0, entry; + u32 max = 0, entry, reg_size; const __be32 *irqsr; int ret = -ENOMEM; @@ -276,9 +276,9 @@ static int __init crossbar_of_init(struct device_node *node) if (!cb->register_offsets) goto err_irq_map; - of_property_read_u32(node, "ti,reg-size", &size); + of_property_read_u32(node, "ti,reg-size", ®_size); - switch (size) { + switch (reg_size) { case 1: cb->write = crossbar_writeb; break; @@ -304,7 +304,7 @@ static int __init crossbar_of_init(struct device_node *node) continue; cb->register_offsets[i] = reserved; - reserved += size; + reserved += reg_size; } of_property_read_u32(node, "ti,irqs-safe-map", &cb->safe_map); -- cgit From 8c71fff434e5ecf5ff27bd61db1bc9ac4c2b2a1b Mon Sep 17 00:00:00 2001 From: Kieran Bingham Date: Fri, 3 Mar 2017 06:31:48 -0300 Subject: [media] v4l: vsp1: Adapt vsp1_du_setup_lif() interface to use a structure The interface to configure the LIF in the VSP1 requires adapting the function prototype for any changes. This makes extending the interface difficult. Change the function prototype to pass a structure which can be easily extended. This changes the means of disabling the pipeline, by now passing a NULL configuration rather than passing either a 0 width or height. [Fixed kerneldoc, made vsp1_du_setup_lif() cfg argument const] Signed-off-by: Kieran Bingham Signed-off-by: Laurent Pinchart Acked-by: Dave Airlie Signed-off-by: Mauro Carvalho Chehab --- drivers/gpu/drm/rcar-du/rcar_du_vsp.c | 8 ++++++-- drivers/media/platform/vsp1/vsp1_drm.c | 33 ++++++++++++++++----------------- 2 files changed, 22 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c index 83ebd162f3ef..22da2d671297 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_vsp.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_vsp.c @@ -32,6 +32,10 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) { const struct drm_display_mode *mode = &crtc->crtc.state->adjusted_mode; struct rcar_du_device *rcdu = crtc->group->dev; + struct vsp1_du_lif_config cfg = { + .width = mode->hdisplay, + .height = mode->vdisplay, + }; struct rcar_du_plane_state state = { .state = { .crtc = &crtc->crtc, @@ -66,12 +70,12 @@ void rcar_du_vsp_enable(struct rcar_du_crtc *crtc) */ crtc->group->need_restart = true; - vsp1_du_setup_lif(crtc->vsp->vsp, mode->hdisplay, mode->vdisplay); + vsp1_du_setup_lif(crtc->vsp->vsp, &cfg); } void rcar_du_vsp_disable(struct rcar_du_crtc *crtc) { - vsp1_du_setup_lif(crtc->vsp->vsp, 0, 0); + vsp1_du_setup_lif(crtc->vsp->vsp, NULL); } void rcar_du_vsp_atomic_begin(struct rcar_du_crtc *crtc) diff --git a/drivers/media/platform/vsp1/vsp1_drm.c b/drivers/media/platform/vsp1/vsp1_drm.c index b4b583f7137a..b4c0f10fc3b0 100644 --- a/drivers/media/platform/vsp1/vsp1_drm.c +++ b/drivers/media/platform/vsp1/vsp1_drm.c @@ -54,12 +54,11 @@ EXPORT_SYMBOL_GPL(vsp1_du_init); /** * vsp1_du_setup_lif - Setup the output part of the VSP pipeline * @dev: the VSP device - * @width: output frame width in pixels - * @height: output frame height in pixels + * @cfg: the LIF configuration * - * Configure the output part of VSP DRM pipeline for the given frame @width and - * @height. This sets up formats on the BRU source pad, the WPF0 sink and source - * pads, and the LIF sink pad. + * Configure the output part of VSP DRM pipeline for the given frame @cfg.width + * and @cfg.height. This sets up formats on the BRU source pad, the WPF0 sink + * and source pads, and the LIF sink pad. * * As the media bus code on the BRU source pad is conditioned by the * configuration of the BRU sink 0 pad, we also set up the formats on all BRU @@ -69,8 +68,7 @@ EXPORT_SYMBOL_GPL(vsp1_du_init); * * Return 0 on success or a negative error code on failure. */ -int vsp1_du_setup_lif(struct device *dev, unsigned int width, - unsigned int height) +int vsp1_du_setup_lif(struct device *dev, const struct vsp1_du_lif_config *cfg) { struct vsp1_device *vsp1 = dev_get_drvdata(dev); struct vsp1_pipeline *pipe = &vsp1->drm->pipe; @@ -79,11 +77,8 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int width, unsigned int i; int ret; - dev_dbg(vsp1->dev, "%s: configuring LIF with format %ux%u\n", - __func__, width, height); - - if (width == 0 || height == 0) { - /* Zero width or height means the CRTC is being disabled, stop + if (!cfg) { + /* NULL configuration means the CRTC is being disabled, stop * the pipeline and turn the light off. */ ret = vsp1_pipeline_stop(pipe); @@ -108,6 +103,9 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int width, return 0; } + dev_dbg(vsp1->dev, "%s: configuring LIF with format %ux%u\n", + __func__, cfg->width, cfg->height); + /* Configure the format at the BRU sinks and propagate it through the * pipeline. */ @@ -117,8 +115,8 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int width, for (i = 0; i < bru->entity.source_pad; ++i) { format.pad = i; - format.format.width = width; - format.format.height = height; + format.format.width = cfg->width; + format.format.height = cfg->height; format.format.code = MEDIA_BUS_FMT_ARGB8888_1X32; format.format.field = V4L2_FIELD_NONE; @@ -133,8 +131,8 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int width, } format.pad = bru->entity.source_pad; - format.format.width = width; - format.format.height = height; + format.format.width = cfg->width; + format.format.height = cfg->height; format.format.code = MEDIA_BUS_FMT_ARGB8888_1X32; format.format.field = V4L2_FIELD_NONE; @@ -180,7 +178,8 @@ int vsp1_du_setup_lif(struct device *dev, unsigned int width, /* Verify that the format at the output of the pipeline matches the * requested frame size and media bus code. */ - if (format.format.width != width || format.format.height != height || + if (format.format.width != cfg->width || + format.format.height != cfg->height || format.format.code != MEDIA_BUS_FMT_ARGB8888_1X32) { dev_dbg(vsp1->dev, "%s: format mismatch\n", __func__); return -EPIPE; -- cgit From 82f2341c94d270421f383641b7cd670e474db56b Mon Sep 17 00:00:00 2001 From: Alexander Popov Date: Tue, 28 Feb 2017 19:54:40 +0300 Subject: tty: n_hdlc: get rid of racy n_hdlc.tbuf Currently N_HDLC line discipline uses a self-made singly linked list for data buffers and has n_hdlc.tbuf pointer for buffer retransmitting after an error. The commit be10eb7589337e5defbe214dae038a53dd21add8 ("tty: n_hdlc add buffer flushing") introduced racy access to n_hdlc.tbuf. After tx error concurrent flush_tx_queue() and n_hdlc_send_frames() can put one data buffer to tx_free_buf_list twice. That causes double free in n_hdlc_release(). Let's use standard kernel linked list and get rid of n_hdlc.tbuf: in case of tx error put current data buffer after the head of tx_buf_list. Signed-off-by: Alexander Popov Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/tty/n_hdlc.c | 132 +++++++++++++++++++++++++++------------------------ 1 file changed, 69 insertions(+), 63 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c index 1bacbc3b19a0..e94aea8c0d05 100644 --- a/drivers/tty/n_hdlc.c +++ b/drivers/tty/n_hdlc.c @@ -114,7 +114,7 @@ #define DEFAULT_TX_BUF_COUNT 3 struct n_hdlc_buf { - struct n_hdlc_buf *link; + struct list_head list_item; int count; char buf[1]; }; @@ -122,8 +122,7 @@ struct n_hdlc_buf { #define N_HDLC_BUF_SIZE (sizeof(struct n_hdlc_buf) + maxframe) struct n_hdlc_buf_list { - struct n_hdlc_buf *head; - struct n_hdlc_buf *tail; + struct list_head list; int count; spinlock_t spinlock; }; @@ -136,7 +135,6 @@ struct n_hdlc_buf_list { * @backup_tty - TTY to use if tty gets closed * @tbusy - reentrancy flag for tx wakeup code * @woke_up - FIXME: describe this field - * @tbuf - currently transmitting tx buffer * @tx_buf_list - list of pending transmit frame buffers * @rx_buf_list - list of received frame buffers * @tx_free_buf_list - list unused transmit frame buffers @@ -149,7 +147,6 @@ struct n_hdlc { struct tty_struct *backup_tty; int tbusy; int woke_up; - struct n_hdlc_buf *tbuf; struct n_hdlc_buf_list tx_buf_list; struct n_hdlc_buf_list rx_buf_list; struct n_hdlc_buf_list tx_free_buf_list; @@ -159,6 +156,8 @@ struct n_hdlc { /* * HDLC buffer list manipulation functions */ +static void n_hdlc_buf_return(struct n_hdlc_buf_list *buf_list, + struct n_hdlc_buf *buf); static void n_hdlc_buf_put(struct n_hdlc_buf_list *list, struct n_hdlc_buf *buf); static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *list); @@ -208,16 +207,9 @@ static void flush_tx_queue(struct tty_struct *tty) { struct n_hdlc *n_hdlc = tty2n_hdlc(tty); struct n_hdlc_buf *buf; - unsigned long flags; while ((buf = n_hdlc_buf_get(&n_hdlc->tx_buf_list))) n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, buf); - spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags); - if (n_hdlc->tbuf) { - n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, n_hdlc->tbuf); - n_hdlc->tbuf = NULL; - } - spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags); } static struct tty_ldisc_ops n_hdlc_ldisc = { @@ -283,7 +275,6 @@ static void n_hdlc_release(struct n_hdlc *n_hdlc) } else break; } - kfree(n_hdlc->tbuf); kfree(n_hdlc); } /* end of n_hdlc_release() */ @@ -402,13 +393,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty) n_hdlc->woke_up = 0; spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock, flags); - /* get current transmit buffer or get new transmit */ - /* buffer from list of pending transmit buffers */ - - tbuf = n_hdlc->tbuf; - if (!tbuf) - tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list); - + tbuf = n_hdlc_buf_get(&n_hdlc->tx_buf_list); while (tbuf) { if (debuglevel >= DEBUG_LEVEL_INFO) printk("%s(%d)sending frame %p, count=%d\n", @@ -420,7 +405,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty) /* rollback was possible and has been done */ if (actual == -ERESTARTSYS) { - n_hdlc->tbuf = tbuf; + n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf); break; } /* if transmit error, throw frame away by */ @@ -435,10 +420,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty) /* free current transmit buffer */ n_hdlc_buf_put(&n_hdlc->tx_free_buf_list, tbuf); - - /* this tx buffer is done */ - n_hdlc->tbuf = NULL; - + /* wait up sleeping writers */ wake_up_interruptible(&tty->write_wait); @@ -448,10 +430,12 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty) if (debuglevel >= DEBUG_LEVEL_INFO) printk("%s(%d)frame %p pending\n", __FILE__,__LINE__,tbuf); - - /* buffer not accepted by driver */ - /* set this buffer as pending buffer */ - n_hdlc->tbuf = tbuf; + + /* + * the buffer was not accepted by driver, + * return it back into tx queue + */ + n_hdlc_buf_return(&n_hdlc->tx_buf_list, tbuf); break; } } @@ -749,7 +733,8 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file, int error = 0; int count; unsigned long flags; - + struct n_hdlc_buf *buf = NULL; + if (debuglevel >= DEBUG_LEVEL_INFO) printk("%s(%d)n_hdlc_tty_ioctl() called %d\n", __FILE__,__LINE__,cmd); @@ -763,8 +748,10 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file, /* report count of read data available */ /* in next available frame (if any) */ spin_lock_irqsave(&n_hdlc->rx_buf_list.spinlock,flags); - if (n_hdlc->rx_buf_list.head) - count = n_hdlc->rx_buf_list.head->count; + buf = list_first_entry_or_null(&n_hdlc->rx_buf_list.list, + struct n_hdlc_buf, list_item); + if (buf) + count = buf->count; else count = 0; spin_unlock_irqrestore(&n_hdlc->rx_buf_list.spinlock,flags); @@ -776,8 +763,10 @@ static int n_hdlc_tty_ioctl(struct tty_struct *tty, struct file *file, count = tty_chars_in_buffer(tty); /* add size of next output frame in queue */ spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock,flags); - if (n_hdlc->tx_buf_list.head) - count += n_hdlc->tx_buf_list.head->count; + buf = list_first_entry_or_null(&n_hdlc->tx_buf_list.list, + struct n_hdlc_buf, list_item); + if (buf) + count += buf->count; spin_unlock_irqrestore(&n_hdlc->tx_buf_list.spinlock,flags); error = put_user(count, (int __user *)arg); break; @@ -825,14 +814,14 @@ static unsigned int n_hdlc_tty_poll(struct tty_struct *tty, struct file *filp, poll_wait(filp, &tty->write_wait, wait); /* set bits for operations that won't block */ - if (n_hdlc->rx_buf_list.head) + if (!list_empty(&n_hdlc->rx_buf_list.list)) mask |= POLLIN | POLLRDNORM; /* readable */ if (test_bit(TTY_OTHER_CLOSED, &tty->flags)) mask |= POLLHUP; if (tty_hung_up_p(filp)) mask |= POLLHUP; if (!tty_is_writelocked(tty) && - n_hdlc->tx_free_buf_list.head) + !list_empty(&n_hdlc->tx_free_buf_list.list)) mask |= POLLOUT | POLLWRNORM; /* writable */ } return mask; @@ -856,7 +845,12 @@ static struct n_hdlc *n_hdlc_alloc(void) spin_lock_init(&n_hdlc->tx_free_buf_list.spinlock); spin_lock_init(&n_hdlc->rx_buf_list.spinlock); spin_lock_init(&n_hdlc->tx_buf_list.spinlock); - + + INIT_LIST_HEAD(&n_hdlc->rx_free_buf_list.list); + INIT_LIST_HEAD(&n_hdlc->tx_free_buf_list.list); + INIT_LIST_HEAD(&n_hdlc->rx_buf_list.list); + INIT_LIST_HEAD(&n_hdlc->tx_buf_list.list); + /* allocate free rx buffer list */ for(i=0;ispinlock, flags); + + list_add(&buf->list_item, &buf_list->list); + buf_list->count++; + + spin_unlock_irqrestore(&buf_list->spinlock, flags); +} + /** * n_hdlc_buf_put - add specified HDLC buffer to tail of specified list - * @list - pointer to buffer list + * @buf_list - pointer to buffer list * @buf - pointer to buffer */ -static void n_hdlc_buf_put(struct n_hdlc_buf_list *list, +static void n_hdlc_buf_put(struct n_hdlc_buf_list *buf_list, struct n_hdlc_buf *buf) { unsigned long flags; - spin_lock_irqsave(&list->spinlock,flags); - - buf->link=NULL; - if (list->tail) - list->tail->link = buf; - else - list->head = buf; - list->tail = buf; - (list->count)++; - - spin_unlock_irqrestore(&list->spinlock,flags); - + + spin_lock_irqsave(&buf_list->spinlock, flags); + + list_add_tail(&buf->list_item, &buf_list->list); + buf_list->count++; + + spin_unlock_irqrestore(&buf_list->spinlock, flags); } /* end of n_hdlc_buf_put() */ /** * n_hdlc_buf_get - remove and return an HDLC buffer from list - * @list - pointer to HDLC buffer list + * @buf_list - pointer to HDLC buffer list * * Remove and return an HDLC buffer from the head of the specified HDLC buffer * list. * Returns a pointer to HDLC buffer if available, otherwise %NULL. */ -static struct n_hdlc_buf* n_hdlc_buf_get(struct n_hdlc_buf_list *list) +static struct n_hdlc_buf *n_hdlc_buf_get(struct n_hdlc_buf_list *buf_list) { unsigned long flags; struct n_hdlc_buf *buf; - spin_lock_irqsave(&list->spinlock,flags); - - buf = list->head; + + spin_lock_irqsave(&buf_list->spinlock, flags); + + buf = list_first_entry_or_null(&buf_list->list, + struct n_hdlc_buf, list_item); if (buf) { - list->head = buf->link; - (list->count)--; + list_del(&buf->list_item); + buf_list->count--; } - if (!list->head) - list->tail = NULL; - - spin_unlock_irqrestore(&list->spinlock,flags); + + spin_unlock_irqrestore(&buf_list->spinlock, flags); return buf; - } /* end of n_hdlc_buf_get() */ static char hdlc_banner[] __initdata = -- cgit From 544714d8e17c33822319d5a1a00e5ddc4db502b6 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Tue, 7 Mar 2017 19:54:05 +0900 Subject: PCI: exynos: Initialize elbi_base even when using PHY framework Even when using the PHY framework, we need the elbi_base. Before this patch, we didn't initialize elbi_base, which caused NULL pointer dereferences later. Fixes: e7cd7ef58e1f ("PCI: exynos: Support the PHY generic framework") Signed-off-by: Jaehoon Chung Signed-off-by: Bjorn Helgaas --- drivers/pci/dwc/pci-exynos.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/dwc/pci-exynos.c b/drivers/pci/dwc/pci-exynos.c index 993b650ef275..44f774c12fb2 100644 --- a/drivers/pci/dwc/pci-exynos.c +++ b/drivers/pci/dwc/pci-exynos.c @@ -132,10 +132,6 @@ static int exynos5440_pcie_get_mem_resources(struct platform_device *pdev, struct device *dev = pci->dev; struct resource *res; - /* If using the PHY framework, doesn't need to get other resource */ - if (ep->using_phy) - return 0; - ep->mem_res = devm_kzalloc(dev, sizeof(*ep->mem_res), GFP_KERNEL); if (!ep->mem_res) return -ENOMEM; @@ -145,6 +141,10 @@ static int exynos5440_pcie_get_mem_resources(struct platform_device *pdev, if (IS_ERR(ep->mem_res->elbi_base)) return PTR_ERR(ep->mem_res->elbi_base); + /* If using the PHY framework, doesn't need to get other resource */ + if (ep->using_phy) + return 0; + res = platform_get_resource(pdev, IORESOURCE_MEM, 1); ep->mem_res->phy_base = devm_ioremap_resource(dev, res); if (IS_ERR(ep->mem_res->phy_base)) -- cgit From f98c7bce570bdbe344b74ff5daa7dfeef3f22929 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sat, 25 Feb 2017 18:36:44 +0200 Subject: serial: samsung: Continue to work if DMA request fails MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If DMA is not available (even when configured in DeviceTree), the driver will fail the startup procedure thus making serial console not available. For example this causes boot failure on QEMU ARMv7 (Exynos4210, SMDKC210): [    1.302575] OF: amba_device_add() failed (-19) for /amba/pdma@12680000 ... [   11.435732] samsung-uart 13800000.serial: DMA request failed [   72.963893] samsung-uart 13800000.serial: DMA request failed [   73.143361] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000000 DMA is not necessary for serial to work, so continue with UART startup after emitting a warning. Fixes: 62c37eedb74c ("serial: samsung: add dma reqest/release functions") Cc: Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/samsung.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c index b4f86c219db1..7a17aedbf902 100644 --- a/drivers/tty/serial/samsung.c +++ b/drivers/tty/serial/samsung.c @@ -1031,8 +1031,10 @@ static int s3c64xx_serial_startup(struct uart_port *port) if (ourport->dma) { ret = s3c24xx_serial_request_dma(ourport); if (ret < 0) { - dev_warn(port->dev, "DMA request failed\n"); - return ret; + dev_warn(port->dev, + "DMA request failed, DMA will not be used\n"); + devm_kfree(port->dev, ourport->dma); + ourport->dma = NULL; } } -- cgit From 0d5370d1d85251e5893ab7c90a429464de2e140b Mon Sep 17 00:00:00 2001 From: Ethan Zhao Date: Mon, 27 Feb 2017 17:08:44 +0900 Subject: PCI: Prevent VPD access for QLogic ISP2722 QLogic ISP2722-based 16/32Gb Fibre Channel to PCIe Adapter has the VPD access issue too, while read the common pci-sysfs access interface shown as /sys/devices/pci0000:00/0000:00:03.2/0000:0b:00.0/vpd with simple 'cat' could cause system hang and panic: Kernel panic - not syncing: An NMI occurred. Depending on your system the reason for the NMI is logged in any one of the following resources: 1. Integrated Management Log (IML) 2. OA Syslog 3. OA Forward Progress Log 4. iLO Event Log CPU: 0 PID: 15070 Comm: udevadm Not tainted 4.1.12 Hardware name: HP ProLiant DL380 Gen9/ProLiant DL380 Gen9, BIOS P89 12/27/2015 0000000000000086 000000007f0cdf51 ffff880c4fa05d58 ffffffff817193de ffffffffa00b42d8 0000000000000075 ffff880c4fa05dd8 ffffffff81714072 0000000000000008 ffff880c4fa05de8 ffff880c4fa05d88 000000007f0cdf51 Call Trace: [] dump_stack+0x63/0x81 [] panic+0xd0/0x20e [] hpwdt_pretimeout+0xdd/0xe0 [hpwdt] [] ? sched_clock+0x9/0x10 [] nmi_handle+0x91/0x170 [] ? nmi_handle+0x9c/0x170 [] io_check_error+0x1e/0xa0 [] default_do_nmi+0x99/0x140 [] do_nmi+0xf4/0x170 [] end_repeat_nmi+0x1a/0x1e [] ? pci_conf1_read+0xeb/0x120 [] ? pci_conf1_read+0xeb/0x120 [] ? pci_conf1_read+0xeb/0x120 <> [] raw_pci_read+0x23/0x40 [] pci_read+0x2c/0x30 [] pci_user_read_config_word+0x72/0x110 [] pci_vpd_pci22_wait+0x96/0x130 [] pci_vpd_pci22_read+0xdb/0x1a0 [] pci_read_vpd+0x20/0x30 [] read_vpd_attr+0x30/0x40 [] sysfs_kf_bin_read+0x47/0x70 [] kernfs_fop_read+0xae/0x180 [] __vfs_read+0x37/0x100 [] ? security_file_permission+0x84/0xa0 [] ? rw_verify_area+0x56/0xe0 [] vfs_read+0x86/0x140 [] SyS_read+0x55/0xd0 [] system_call_fastpath+0x12/0x71 Shutting down cpus with NMI Kernel Offset: disabled drm_kms_helper: panic occurred, switching back to text console So blacklist the access to its VPD. Signed-off-by: Ethan Zhao Signed-off-by: Bjorn Helgaas CC: stable@vger.kernel.org # v4.6+ --- drivers/pci/quirks.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index f754453fe754..673683660b5c 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2174,6 +2174,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005d, quirk_blacklist_vpd); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_LSI_LOGIC, 0x005f, quirk_blacklist_vpd); DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, PCI_ANY_ID, quirk_blacklist_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_QLOGIC, 0x2261, quirk_blacklist_vpd); /* * For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the -- cgit From 3bd7db63a841e8c5297bb18ad801df67d5e38ad2 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 1 Mar 2017 00:25:40 -0800 Subject: PCI/ASPM: Always set link->downstream to avoid NULL dereference on remove We call pcie_aspm_exit_link_state() when we remove a device. If the device is the last PCIe function to be removed below a bridge and the bridge has an ASPM link_state struct, we disable ASPM on the link. Disabling ASPM requires link->downstream (used in pcie_config_aspm_link()). We previously set link->downstream in pcie_aspm_cap_init(), but only if the device was not blacklisted. Removing the blacklisted device caused a NULL pointer dereference in the pcie_aspm_exit_link_state() -> pcie_config_aspm_link() path: # echo 1 > /sys/bus/pci/devices/0000\:0b\:00.0/remove ... BUG: unable to handle kernel NULL pointer dereference at 0000000000000080 IP: pcie_config_aspm_link+0x5d/0x2b0 Call Trace: pcie_aspm_exit_link_state+0x75/0x130 pci_stop_bus_device+0xa4/0xb0 pci_stop_and_remove_bus_device_locked+0x1a/0x30 remove_store+0x50/0x70 dev_attr_store+0x18/0x30 sysfs_kf_write+0x44/0x60 kernfs_fop_write+0x10e/0x190 __vfs_write+0x28/0x110 ? rcu_read_lock_sched_held+0x5d/0x80 ? rcu_sync_lockdep_assert+0x2c/0x60 ? __sb_start_write+0x173/0x1a0 ? vfs_write+0xb3/0x180 vfs_write+0xc4/0x180 SyS_write+0x49/0xa0 do_syscall_64+0xa6/0x1c0 entry_SYSCALL64_slow_path+0x25/0x25 ---[ end trace bd187ee0267df5d9 ]--- To avoid this, set link->downstream in alloc_pcie_link_state(), so every pcie_link_state structure has a valid link->downstream pointer. [bhelgaas: changelog] Signed-off-by: Yinghai Lu Signed-off-by: Bjorn Helgaas Acked-by: Rajat Jain CC: stable@vger.kernel.org --- drivers/pci/pcie/aspm.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c index 973472c23d89..1dfa10cc566b 100644 --- a/drivers/pci/pcie/aspm.c +++ b/drivers/pci/pcie/aspm.c @@ -478,7 +478,7 @@ static void aspm_calc_l1ss_info(struct pcie_link_state *link, static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist) { - struct pci_dev *child, *parent = link->pdev; + struct pci_dev *child = link->downstream, *parent = link->pdev; struct pci_bus *linkbus = parent->subordinate; struct aspm_register_info upreg, dwreg; @@ -491,9 +491,7 @@ static void pcie_aspm_cap_init(struct pcie_link_state *link, int blacklist) /* Get upstream/downstream components' register state */ pcie_get_aspm_reg(parent, &upreg); - child = pci_function_0(linkbus); pcie_get_aspm_reg(child, &dwreg); - link->downstream = child; /* * If ASPM not supported, don't mess with the clocks and link, @@ -800,6 +798,7 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev) INIT_LIST_HEAD(&link->children); INIT_LIST_HEAD(&link->link); link->pdev = pdev; + link->downstream = pci_function_0(pdev->subordinate); /* * Root Ports and PCI/PCI-X to PCIe Bridges are roots of PCIe -- cgit From 0253f2681f4445e9003fb27dc743ef7d25e8f3b9 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 28 Feb 2017 22:12:04 +0100 Subject: net/mlx5e: add IPV6 dependency The ethernet support now calls directly into the ipv6 core code, which fails if IPV6 is a loadable module but mlx5 is built-in: drivers/net/ethernet/mellanox/mlx5/core/en_tc.o: In function `mlx5e_create_encap_header_ipv6': en_tc.c:(.text.mlx5e_create_encap_header_ipv6+0x110): undefined reference to `ip6_route_output_flags' This adds a dependency to ensure that MLX5_CORE_EN can only be built if we are able link the kernel successfully. The downside is that the ethernet option can be hidden. Alternatively we could make MLX5_CORE depend on "IPV6 || !IPV6", which would force MLX5_CORE to be a module when IPV6 is, including in configurations where we don't use the ethernet support at all. Signed-off-by: Arnd Bergmann Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig index ddb4ca4ff930..117170014e88 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Kconfig +++ b/drivers/net/ethernet/mellanox/mlx5/core/Kconfig @@ -14,6 +14,7 @@ config MLX5_CORE config MLX5_CORE_EN bool "Mellanox Technologies ConnectX-4 Ethernet support" depends on NETDEVICES && ETHERNET && PCI && MLX5_CORE + depends on IPV6=y || IPV6=n || MLX5_CORE=m imply PTP_1588_CLOCK default n ---help--- -- cgit From 4342696df764ec65dcdfbd0c10d90ea52505f8ba Mon Sep 17 00:00:00 2001 From: "Blomme, Maarten" Date: Thu, 2 Mar 2017 13:08:36 +0100 Subject: spi_ks8995: fix "BUG: key accdaa28 not in .data!" Signed-off-by: Maarten Blomme Signed-off-by: David S. Miller --- drivers/net/phy/spi_ks8995.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index 93ffedfa2994..aa7209d794f3 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -498,6 +498,7 @@ static int ks8995_probe(struct spi_device *spi) if (err) return err; + sysfs_attr_init(&ks->regs_attr.attr); err = sysfs_create_bin_file(&spi->dev.kobj, &ks->regs_attr); if (err) { dev_err(&spi->dev, "unable to create sysfs file, err=%d\n", -- cgit From 239870f2a0ebf75cc8f6d987dc528c5243f93d69 Mon Sep 17 00:00:00 2001 From: "Blomme, Maarten" Date: Thu, 2 Mar 2017 13:08:49 +0100 Subject: spi_ks8995: regs_size incorrect for some devices Signed-off-by: Maarten Blomme Signed-off-by: David S. Miller --- drivers/net/phy/spi_ks8995.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index aa7209d794f3..1e2d4f1179da 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -491,8 +491,8 @@ static int ks8995_probe(struct spi_device *spi) if (err) return err; - ks->regs_attr.size = ks->chip->regs_size; memcpy(&ks->regs_attr, &ks8995_registers_attr, sizeof(ks->regs_attr)); + ks->regs_attr.size = ks->chip->regs_size; err = ks8995_reset(ks); if (err) -- cgit From 466e8bf10ac104d96e1ea813e8126e11cb72ea20 Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:28 +0100 Subject: bnx2x: prevent crash when accessing PTP with interface down It is possible to crash the kernel by accessing a PTP device while its associated bnx2x interface is down. Before the interface is brought up, the timecounter is not initialized, so accessing it results in NULL dereference. Fix it by checking if the interface is up. Use -ENETDOWN as the error code when the interface is down. -EFAULT in bnx2x_ptp_adjfreq() did not seem right. Tested using phc_ctl get/set/adj/freq commands. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index d8d06fdfc42b..d57290b9ea75 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -13738,7 +13738,7 @@ static int bnx2x_ptp_adjfreq(struct ptp_clock_info *ptp, s32 ppb) if (!netif_running(bp->dev)) { DP(BNX2X_MSG_PTP, "PTP adjfreq called while the interface is down\n"); - return -EFAULT; + return -ENETDOWN; } if (ppb < 0) { @@ -13797,6 +13797,12 @@ static int bnx2x_ptp_adjtime(struct ptp_clock_info *ptp, s64 delta) { struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info); + if (!netif_running(bp->dev)) { + DP(BNX2X_MSG_PTP, + "PTP adjtime called while the interface is down\n"); + return -ENETDOWN; + } + DP(BNX2X_MSG_PTP, "PTP adjtime called, delta = %llx\n", delta); timecounter_adjtime(&bp->timecounter, delta); @@ -13809,6 +13815,12 @@ static int bnx2x_ptp_gettime(struct ptp_clock_info *ptp, struct timespec64 *ts) struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info); u64 ns; + if (!netif_running(bp->dev)) { + DP(BNX2X_MSG_PTP, + "PTP gettime called while the interface is down\n"); + return -ENETDOWN; + } + ns = timecounter_read(&bp->timecounter); DP(BNX2X_MSG_PTP, "PTP gettime called, ns = %llu\n", ns); @@ -13824,6 +13836,12 @@ static int bnx2x_ptp_settime(struct ptp_clock_info *ptp, struct bnx2x *bp = container_of(ptp, struct bnx2x, ptp_clock_info); u64 ns; + if (!netif_running(bp->dev)) { + DP(BNX2X_MSG_PTP, + "PTP settime called while the interface is down\n"); + return -ENETDOWN; + } + ns = timespec64_to_ns(ts); DP(BNX2X_MSG_PTP, "PTP settime called, ns = %llu\n", ns); -- cgit From 850268d320f0c7c5eb7ad0a62ef21859fa331ded Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:29 +0100 Subject: bnx2x: lower verbosity of VF stats debug messages When BNX2X_MSG_IOV is enabled, the driver produces too many VF statistics messages. Lower the verbosity of the VF stats messages similarly as in commit 76ca70fabbdaa3 ("bnx2x: [Debug] change verbosity of some prints"). Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index 6fad22adbbb9..9f0f851774f2 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -1899,7 +1899,8 @@ void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) continue; } - DP(BNX2X_MSG_IOV, "add addresses for vf %d\n", vf->abs_vfid); + DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), + "add addresses for vf %d\n", vf->abs_vfid); for_each_vfq(vf, j) { struct bnx2x_vf_queue *rxq = vfq_get(vf, j); @@ -1920,11 +1921,12 @@ void bnx2x_iov_adjust_stats_req(struct bnx2x *bp) cpu_to_le32(U64_HI(q_stats_addr)); cur_query_entry->address.lo = cpu_to_le32(U64_LO(q_stats_addr)); - DP(BNX2X_MSG_IOV, - "added address %x %x for vf %d queue %d client %d\n", - cur_query_entry->address.hi, - cur_query_entry->address.lo, cur_query_entry->funcID, - j, cur_query_entry->index); + DP_AND((BNX2X_MSG_IOV | BNX2X_MSG_STATS), + "added address %x %x for vf %d queue %d client %d\n", + cur_query_entry->address.hi, + cur_query_entry->address.lo, + cur_query_entry->funcID, + j, cur_query_entry->index); cur_query_entry++; cur_data_offset += sizeof(struct per_queue_stats); stats_count++; -- cgit From 22118d861cec5da6ed525aaf12a3de9bfeffc58f Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:30 +0100 Subject: bnx2x: fix possible overrun of VFPF multicast addresses array It is too late to check for the limit of the number of VF multicast addresses after they have already been copied to the req->multicast[] array, possibly overflowing it. Do the check before copying. Also fix the error path to not skip unlocking vf2pf_mutex. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 23 +++++++++++------------ 1 file changed, 11 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index bfae300cf25f..c2d327d9dff0 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -868,7 +868,7 @@ int bnx2x_vfpf_set_mcast(struct net_device *dev) struct bnx2x *bp = netdev_priv(dev); struct vfpf_set_q_filters_tlv *req = &bp->vf2pf_mbox->req.set_q_filters; struct pfvf_general_resp_tlv *resp = &bp->vf2pf_mbox->resp.general_resp; - int rc, i = 0; + int rc = 0, i = 0; struct netdev_hw_addr *ha; if (bp->state != BNX2X_STATE_OPEN) { @@ -883,6 +883,15 @@ int bnx2x_vfpf_set_mcast(struct net_device *dev) /* Get Rx mode requested */ DP(NETIF_MSG_IFUP, "dev->flags = %x\n", dev->flags); + /* We support PFVF_MAX_MULTICAST_PER_VF mcast addresses tops */ + if (netdev_mc_count(dev) > PFVF_MAX_MULTICAST_PER_VF) { + DP(NETIF_MSG_IFUP, + "VF supports not more than %d multicast MAC addresses\n", + PFVF_MAX_MULTICAST_PER_VF); + rc = -EINVAL; + goto out; + } + netdev_for_each_mc_addr(ha, dev) { DP(NETIF_MSG_IFUP, "Adding mcast MAC: %pM\n", bnx2x_mc_addr(ha)); @@ -890,16 +899,6 @@ int bnx2x_vfpf_set_mcast(struct net_device *dev) i++; } - /* We support four PFVF_MAX_MULTICAST_PER_VF mcast - * addresses tops - */ - if (i >= PFVF_MAX_MULTICAST_PER_VF) { - DP(NETIF_MSG_IFUP, - "VF supports not more than %d multicast MAC addresses\n", - PFVF_MAX_MULTICAST_PER_VF); - return -EINVAL; - } - req->n_multicast = i; req->flags |= VFPF_SET_Q_FILTERS_MULTICAST_CHANGED; req->vf_qid = 0; @@ -924,7 +923,7 @@ int bnx2x_vfpf_set_mcast(struct net_device *dev) out: bnx2x_vfpf_finalize(bp, &req->first_tlv); - return 0; + return rc; } /* request pf to add a vlan for the vf */ -- cgit From 83bd9eb8fc69cdd5135ed6e1f066adc8841800fd Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:31 +0100 Subject: bnx2x: fix detection of VLAN filtering feature for VF VFs are currently missing the VLAN filtering feature, because we were checking the PF's acquire response before actually performing the acquire. Fix it by setting the feature flag later when we have the PF response. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index d57290b9ea75..ac76fc251d26 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -13292,17 +13292,15 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, dev->vlan_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_HIGHDMA; - /* VF with OLD Hypervisor or old PF do not support filtering */ if (IS_PF(bp)) { if (chip_is_e1x) bp->accept_any_vlan = true; else dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; -#ifdef CONFIG_BNX2X_SRIOV - } else if (bp->acquire_resp.pfdev_info.pf_cap & PFVF_CAP_VLAN_FILTER) { - dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; -#endif } + /* For VF we'll know whether to enable VLAN filtering after + * getting a response to CHANNEL_TLV_ACQUIRE from PF. + */ dev->features |= dev->hw_features | NETIF_F_HW_VLAN_CTAG_RX; dev->features |= NETIF_F_HIGHDMA; @@ -14009,6 +14007,14 @@ static int bnx2x_init_one(struct pci_dev *pdev, rc = bnx2x_vfpf_acquire(bp, tx_count, rx_count); if (rc) goto init_one_freemem; + +#ifdef CONFIG_BNX2X_SRIOV + /* VF with OLD Hypervisor or old PF do not support filtering */ + if (bp->acquire_resp.pfdev_info.pf_cap & PFVF_CAP_VLAN_FILTER) { + dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; + dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; + } +#endif } /* Enable SRIOV if capability found in configuration space */ -- cgit From 78d5505432436516456c12abbe705ec8dee7ee2b Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:32 +0100 Subject: bnx2x: do not rollback VF MAC/VLAN filters we did not configure On failure to configure a VF MAC/VLAN filter we should not attempt to rollback filters that we failed to configure with -EEXIST. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 8 +++++++- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h | 1 + 2 files changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index 9f0f851774f2..2068bb8f5495 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -434,7 +434,9 @@ static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp, /* Add/Remove the filter */ rc = bnx2x_config_vlan_mac(bp, &ramrod); - if (rc && rc != -EEXIST) { + if (rc == -EEXIST) + return 0; + if (rc) { BNX2X_ERR("Failed to %s %s\n", filter->add ? "add" : "delete", (filter->type == BNX2X_VF_FILTER_VLAN_MAC) ? @@ -444,6 +446,8 @@ static int bnx2x_vf_mac_vlan_config(struct bnx2x *bp, return rc; } + filter->applied = true; + return 0; } @@ -471,6 +475,8 @@ int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf, BNX2X_ERR("Managed only %d/%d filters - rolling back\n", i, filters->count + 1); while (--i >= 0) { + if (!filters->filters[i].applied) + continue; filters->filters[i].add = !filters->filters[i].add; bnx2x_vf_mac_vlan_config(bp, vf, qid, &filters->filters[i], diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h index 7a6d406f4c11..888d0b6632e8 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h @@ -114,6 +114,7 @@ struct bnx2x_vf_mac_vlan_filter { (BNX2X_VF_FILTER_MAC | BNX2X_VF_FILTER_VLAN) /*shortcut*/ bool add; + bool applied; u8 *mac; u16 vid; }; -- cgit From 74bcbeb7d77ec92e4262fc340cb436ef7d98ba01 Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:33 +0100 Subject: bnx2x: fix incorrect filter count in an error message filters->count is the number of filters we were supposed to configure. There is no reason to increase it by +1 when printing the count in an error message. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c index 2068bb8f5495..bdfd53b46bc5 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c @@ -473,7 +473,7 @@ int bnx2x_vf_mac_vlan_config_list(struct bnx2x *bp, struct bnx2x_virtf *vf, /* Rollback if needed */ if (i != filters->count) { BNX2X_ERR("Managed only %d/%d filters - rolling back\n", - i, filters->count + 1); + i, filters->count); while (--i >= 0) { if (!filters->filters[i].applied) continue; -- cgit From e39513259450a8312cb98a9a3b16bb924310dbcc Mon Sep 17 00:00:00 2001 From: Michal Schmidt Date: Fri, 3 Mar 2017 17:08:34 +0100 Subject: bnx2x: add missing configuration of VF VLAN filters Configuring VLANs from the VF side had no effect, because the PF ignored filters of type VFPF_VLAN_FILTER in the VF-PF message. Add the missing filter type to configure. Signed-off-by: Michal Schmidt Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c index c2d327d9dff0..76a4668c50fe 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c @@ -1777,6 +1777,23 @@ static int bnx2x_vf_mbx_qfilters(struct bnx2x *bp, struct bnx2x_virtf *vf) goto op_err; } + /* build vlan list */ + fl = NULL; + + rc = bnx2x_vf_mbx_macvlan_list(bp, vf, msg, &fl, + VFPF_VLAN_FILTER); + if (rc) + goto op_err; + + if (fl) { + /* set vlan list */ + rc = bnx2x_vf_mac_vlan_config_list(bp, vf, fl, + msg->vf_qid, + false); + if (rc) + goto op_err; + } + } if (msg->flags & VFPF_SET_Q_FILTERS_RX_MASK_CHANGED) { -- cgit From 142c0ac445792c492579cb01f1cfd4e32e6dfcce Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Sun, 5 Mar 2017 12:18:41 -0600 Subject: ibmvnic: Fix overflowing firmware/hardware TX queue Use a counter to track the number of outstanding transmissions sent that have not received completions. If the counter reaches the maximum number of queue entries, stop transmissions on that queue. As we receive more completions from firmware, wake the queue once the counter reaches an acceptable level. This patch prevents hardware/firmware TX queue from filling up and and generating errors. Since incorporating this fix, internal testing has reported that these firmware errors have stopped. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 27 ++++++++++++++++++++++++++- drivers/net/ethernet/ibm/ibmvnic.h | 1 + 2 files changed, 27 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 9198e6bd5160..0e87b83f25e2 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -705,6 +705,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) u8 *hdrs = (u8 *)&adapter->tx_rx_desc_req; struct device *dev = &adapter->vdev->dev; struct ibmvnic_tx_buff *tx_buff = NULL; + struct ibmvnic_sub_crq_queue *tx_scrq; struct ibmvnic_tx_pool *tx_pool; unsigned int tx_send_failed = 0; unsigned int tx_map_failed = 0; @@ -724,6 +725,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) int ret = 0; tx_pool = &adapter->tx_pool[queue_num]; + tx_scrq = adapter->tx_scrq[queue_num]; txq = netdev_get_tx_queue(netdev, skb_get_queue_mapping(skb)); handle_array = (u64 *)((u8 *)(adapter->login_rsp_buf) + be32_to_cpu(adapter->login_rsp_buf-> @@ -826,6 +828,14 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) ret = NETDEV_TX_BUSY; goto out; } + + atomic_inc(&tx_scrq->used); + + if (atomic_read(&tx_scrq->used) >= adapter->req_tx_entries_per_subcrq) { + netdev_info(netdev, "Stopping queue %d\n", queue_num); + netif_stop_subqueue(netdev, queue_num); + } + tx_packets++; tx_bytes += skb->len; txq->trans_start = jiffies; @@ -1213,6 +1223,7 @@ static struct ibmvnic_sub_crq_queue *init_sub_crq_queue(struct ibmvnic_adapter scrq->adapter = adapter; scrq->size = 4 * PAGE_SIZE / sizeof(*scrq->msgs); scrq->cur = 0; + atomic_set(&scrq->used, 0); scrq->rx_skb_top = NULL; spin_lock_init(&scrq->lock); @@ -1355,8 +1366,22 @@ restart_loop: DMA_TO_DEVICE); } - if (txbuff->last_frag) + if (txbuff->last_frag) { + atomic_dec(&scrq->used); + + if (atomic_read(&scrq->used) <= + (adapter->req_tx_entries_per_subcrq / 2) && + netif_subqueue_stopped(adapter->netdev, + txbuff->skb)) { + netif_wake_subqueue(adapter->netdev, + scrq->pool_index); + netdev_dbg(adapter->netdev, + "Started queue %d\n", + scrq->pool_index); + } + dev_kfree_skb_any(txbuff->skb); + } adapter->tx_pool[pool].free_map[adapter->tx_pool[pool]. producer_index] = index; diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h index 422824f1f42a..1993b42666f7 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.h +++ b/drivers/net/ethernet/ibm/ibmvnic.h @@ -863,6 +863,7 @@ struct ibmvnic_sub_crq_queue { spinlock_t lock; struct sk_buff *rx_skb_top; struct ibmvnic_adapter *adapter; + atomic_t used; }; struct ibmvnic_long_term_buff { -- cgit From 068d9f90a6978c3e3a662d9e85204a7d6be240d2 Mon Sep 17 00:00:00 2001 From: Thomas Falcon Date: Sun, 5 Mar 2017 12:18:42 -0600 Subject: ibmvnic: Allocate number of rx/tx buffers agreed on by firmware The amount of TX/RX buffers that the vNIC driver currently allocates is different from the amount agreed upon in negotiation with firmware. Correct that by allocating the requested number of buffers confirmed by firmware. Signed-off-by: Thomas Falcon Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/ibmvnic.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 0e87b83f25e2..5f11b4dc95d2 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -404,7 +404,7 @@ static int ibmvnic_open(struct net_device *netdev) send_map_query(adapter); for (i = 0; i < rxadd_subcrqs; i++) { init_rx_pool(adapter, &adapter->rx_pool[i], - IBMVNIC_BUFFS_PER_POOL, i, + adapter->req_rx_add_entries_per_subcrq, i, be64_to_cpu(size_array[i]), 1); if (alloc_rx_pool(adapter, &adapter->rx_pool[i])) { dev_err(dev, "Couldn't alloc rx pool\n"); @@ -419,23 +419,23 @@ static int ibmvnic_open(struct net_device *netdev) for (i = 0; i < tx_subcrqs; i++) { tx_pool = &adapter->tx_pool[i]; tx_pool->tx_buff = - kcalloc(adapter->max_tx_entries_per_subcrq, + kcalloc(adapter->req_tx_entries_per_subcrq, sizeof(struct ibmvnic_tx_buff), GFP_KERNEL); if (!tx_pool->tx_buff) goto tx_pool_alloc_failed; if (alloc_long_term_buff(adapter, &tx_pool->long_term_buff, - adapter->max_tx_entries_per_subcrq * + adapter->req_tx_entries_per_subcrq * adapter->req_mtu)) goto tx_ltb_alloc_failed; tx_pool->free_map = - kcalloc(adapter->max_tx_entries_per_subcrq, + kcalloc(adapter->req_tx_entries_per_subcrq, sizeof(int), GFP_KERNEL); if (!tx_pool->free_map) goto tx_fm_alloc_failed; - for (j = 0; j < adapter->max_tx_entries_per_subcrq; j++) + for (j = 0; j < adapter->req_tx_entries_per_subcrq; j++) tx_pool->free_map[j] = j; tx_pool->consumer_index = 0; @@ -746,7 +746,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) tx_pool->consumer_index = (tx_pool->consumer_index + 1) % - adapter->max_tx_entries_per_subcrq; + adapter->req_tx_entries_per_subcrq; tx_buff = &tx_pool->tx_buff[index]; tx_buff->skb = skb; @@ -819,7 +819,7 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev) if (tx_pool->consumer_index == 0) tx_pool->consumer_index = - adapter->max_tx_entries_per_subcrq - 1; + adapter->req_tx_entries_per_subcrq - 1; else tx_pool->consumer_index--; @@ -1387,7 +1387,7 @@ restart_loop: producer_index] = index; adapter->tx_pool[pool].producer_index = (adapter->tx_pool[pool].producer_index + 1) % - adapter->max_tx_entries_per_subcrq; + adapter->req_tx_entries_per_subcrq; } /* remove tx_comp scrq*/ next->tx_comp.first = 0; -- cgit From f1c635b439a5c01776fe3a25b1e2dc546ea82e6f Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 7 Mar 2017 09:15:53 -0800 Subject: scsi: storvsc: Workaround for virtual DVD SCSI version Hyper-V host emulation of SCSI for virtual DVD device reports SCSI version 0 (UNKNOWN) but is still capable of supporting REPORTLUN. Without this patch, a GEN2 Linux guest on Hyper-V will not boot 4.11 successfully with virtual DVD ROM device. What happens is that the SCSI scan process falls back to doing sequential probing by INQUIRY. But the storvsc driver has a previous workaround that masks/blocks all errors reports from INQUIRY (or MODE_SENSE) commands. This workaround causes the scan to then populate a full set of bogus LUN's on the target and then sends kernel spinning off into a death spiral doing block reads on the non-existent LUNs. By setting the correct blacklist flags, the target with the DVD device is scanned with REPORTLUN and that works correctly. Patch needs to go in current 4.11, it is safe but not necessary in older kernels. Signed-off-by: Stephen Hemminger Reviewed-by: K. Y. Srinivasan Reviewed-by: Christoph Hellwig Signed-off-by: Martin K. Petersen --- drivers/scsi/storvsc_drv.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c index 585e54f6512c..f555174f2cb7 100644 --- a/drivers/scsi/storvsc_drv.c +++ b/drivers/scsi/storvsc_drv.c @@ -400,8 +400,6 @@ MODULE_PARM_DESC(storvsc_vcpus_per_sub_channel, "Ratio of VCPUs to subchannels") */ static int storvsc_timeout = 180; -static int msft_blist_flags = BLIST_TRY_VPD_PAGES; - #if IS_ENABLED(CONFIG_SCSI_FC_ATTRS) static struct scsi_transport_template *fc_transport_template; #endif @@ -1383,6 +1381,22 @@ static int storvsc_do_io(struct hv_device *device, return ret; } +static int storvsc_device_alloc(struct scsi_device *sdevice) +{ + /* + * Set blist flag to permit the reading of the VPD pages even when + * the target may claim SPC-2 compliance. MSFT targets currently + * claim SPC-2 compliance while they implement post SPC-2 features. + * With this flag we can correctly handle WRITE_SAME_16 issues. + * + * Hypervisor reports SCSI_UNKNOWN type for DVD ROM device but + * still supports REPORT LUN. + */ + sdevice->sdev_bflags = BLIST_REPORTLUN2 | BLIST_TRY_VPD_PAGES; + + return 0; +} + static int storvsc_device_configure(struct scsi_device *sdevice) { @@ -1395,14 +1409,6 @@ static int storvsc_device_configure(struct scsi_device *sdevice) sdevice->no_write_same = 1; - /* - * Add blist flags to permit the reading of the VPD pages even when - * the target may claim SPC-2 compliance. MSFT targets currently - * claim SPC-2 compliance while they implement post SPC-2 features. - * With this patch we can correctly handle WRITE_SAME_16 issues. - */ - sdevice->sdev_bflags |= msft_blist_flags; - /* * If the host is WIN8 or WIN8 R2, claim conformance to SPC-3 * if the device is a MSFT virtual device. If the host is @@ -1661,6 +1667,7 @@ static struct scsi_host_template scsi_driver = { .eh_host_reset_handler = storvsc_host_reset_handler, .proc_name = "storvsc_host", .eh_timed_out = storvsc_eh_timed_out, + .slave_alloc = storvsc_device_alloc, .slave_configure = storvsc_device_configure, .cmd_per_lun = 255, .this_id = -1, -- cgit From 85e8a23936ab3442de0c42da97d53b29f004ece1 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Mon, 13 Feb 2017 08:49:20 +1100 Subject: scsi: lpfc: Add shutdown method for kexec We see lpfc devices regularly fail during kexec. Fix this by adding a shutdown method which mirrors the remove method. Cc: Signed-off-by: Anton Blanchard Reviewed-by: Mauricio Faria de Oliveira Tested-by: Mauricio Faria de Oliveira Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_init.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c index 661bd25a404a..2697d49da4d7 100644 --- a/drivers/scsi/lpfc/lpfc_init.c +++ b/drivers/scsi/lpfc/lpfc_init.c @@ -12059,6 +12059,7 @@ static struct pci_driver lpfc_driver = { .id_table = lpfc_id_table, .probe = lpfc_pci_probe_one, .remove = lpfc_pci_remove_one, + .shutdown = lpfc_pci_remove_one, .suspend = lpfc_pci_suspend_one, .resume = lpfc_pci_resume_one, .err_handler = &lpfc_err_handler, -- cgit From 627c845c0907894a1e5cd2d90ff4fc86c9e4458e Mon Sep 17 00:00:00 2001 From: Tina Zhang Date: Tue, 7 Mar 2017 04:08:34 -0500 Subject: drm/i915/gvt: change some gvt_err to gvt_dbg_cmd gvt_err should be used for dumping error message. This patch changes some gvt_err to gvt_dbg_cmd, as they are only debugging message, not errors. Signed-off-by: Tina Zhang Signed-off-by: Zhenyu Wang --- drivers/gpu/drm/i915/gvt/cmd_parser.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/gvt/cmd_parser.c b/drivers/gpu/drm/i915/gvt/cmd_parser.c index 7bb11a555b76..f53cab604d49 100644 --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -669,7 +669,7 @@ static inline void print_opcode(u32 cmd, int ring_id) if (d_info == NULL) return; - gvt_err("opcode=0x%x %s sub_ops:", + gvt_dbg_cmd("opcode=0x%x %s sub_ops:", cmd >> (32 - d_info->op_len), d_info->name); for (i = 0; i < d_info->nr_sub_op; i++) @@ -694,23 +694,23 @@ static void parser_exec_state_dump(struct parser_exec_state *s) int cnt = 0; int i; - gvt_err(" vgpu%d RING%d: ring_start(%08lx) ring_end(%08lx)" + gvt_dbg_cmd(" vgpu%d RING%d: ring_start(%08lx) ring_end(%08lx)" " ring_head(%08lx) ring_tail(%08lx)\n", s->vgpu->id, s->ring_id, s->ring_start, s->ring_start + s->ring_size, s->ring_head, s->ring_tail); - gvt_err(" %s %s ip_gma(%08lx) ", + gvt_dbg_cmd(" %s %s ip_gma(%08lx) ", s->buf_type == RING_BUFFER_INSTRUCTION ? "RING_BUFFER" : "BATCH_BUFFER", s->buf_addr_type == GTT_BUFFER ? "GTT" : "PPGTT", s->ip_gma); if (s->ip_va == NULL) { - gvt_err(" ip_va(NULL)"); + gvt_dbg_cmd(" ip_va(NULL)"); return; } - gvt_err(" ip_va=%p: %08x %08x %08x %08x\n", + gvt_dbg_cmd(" ip_va=%p: %08x %08x %08x %08x\n", s->ip_va, cmd_val(s, 0), cmd_val(s, 1), cmd_val(s, 2), cmd_val(s, 3)); -- cgit From 07de4bc88ce6a4d898cad9aa4c99c1df7e87702d Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Sun, 5 Mar 2017 19:14:07 +0200 Subject: crypto: s5p-sss - Fix completing crypto request in IRQ handler In a regular interrupt handler driver was finishing the crypt/decrypt request by calling complete on crypto request. This is disallowed since converting to skcipher in commit b286d8b1a690 ("crypto: skcipher - Add skcipher walk interface") and causes a warning: WARNING: CPU: 0 PID: 0 at crypto/skcipher.c:430 skcipher_walk_first+0x13c/0x14c The interrupt is marked shared but in fact there are no other users sharing it. Thus the simplest solution seems to be to just use a threaded interrupt handler, after converting it to oneshot. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Herbert Xu --- drivers/crypto/s5p-sss.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c index dce1af0ce85c..a668286d62cb 100644 --- a/drivers/crypto/s5p-sss.c +++ b/drivers/crypto/s5p-sss.c @@ -805,8 +805,9 @@ static int s5p_aes_probe(struct platform_device *pdev) dev_warn(dev, "feed control interrupt is not available.\n"); goto err_irq; } - err = devm_request_irq(dev, pdata->irq_fc, s5p_aes_interrupt, - IRQF_SHARED, pdev->name, pdev); + err = devm_request_threaded_irq(dev, pdata->irq_fc, NULL, + s5p_aes_interrupt, IRQF_ONESHOT, + pdev->name, pdev); if (err < 0) { dev_warn(dev, "feed control interrupt is not available.\n"); goto err_irq; -- cgit From 45c2fdde01299b02a6e3225e848598a3c1e55539 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 7 Mar 2017 15:14:46 +0100 Subject: hwrng: omap - write registers after enabling the clock Commit 383212425c926 ("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K") added support for the SafeXcel IP-76 variant of the IP. This modification included getting a reference and enabling a clock. Unfortunately, this was done *after* writing to the RNG_INTMASK_REG register. This generally works fine when the driver is built-in because the clock might have been left enabled by the bootloader, but fails short when the driver is built as a module: it causes a system hang because a register is being accessed while the clock is not enabled. This commit fixes that by making the register access *after* enabling the clock. This issue was found by the kernelci.org testing effort. Fixes: 383212425c926 ("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K") Cc: Signed-off-by: Thomas Petazzoni Signed-off-by: Herbert Xu --- drivers/char/hw_random/omap-rng.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index 3ad86fdf954e..efa3747c1750 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -397,7 +397,6 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv, irq, err); return err; } - omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK); priv->clk = of_clk_get(pdev->dev.of_node, 0); if (IS_ERR(priv->clk) && PTR_ERR(priv->clk) == -EPROBE_DEFER) @@ -408,6 +407,8 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv, dev_err(&pdev->dev, "unable to enable the clk, " "err = %d\n", err); } + + omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK); } return 0; } -- cgit From 761c2510283066324cab7859930777ee34cbca78 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 7 Mar 2017 15:14:47 +0100 Subject: hwrng: omap - use devm_clk_get() instead of of_clk_get() The omap-rng driver currently uses of_clk_get() to get a reference to the clock, but never releases that reference. This commit fixes that by using devm_clk_get() instead. Fixes: 383212425c926 ("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K") Cc: Signed-off-by: Thomas Petazzoni Signed-off-by: Herbert Xu --- drivers/char/hw_random/omap-rng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index efa3747c1750..d2866280f130 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -398,7 +398,7 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv, return err; } - priv->clk = of_clk_get(pdev->dev.of_node, 0); + priv->clk = devm_clk_get(&pdev->dev, NULL); if (IS_ERR(priv->clk) && PTR_ERR(priv->clk) == -EPROBE_DEFER) return -EPROBE_DEFER; if (!IS_ERR(priv->clk)) { -- cgit From b985735be7afea3a5e0570ce2ea0b662c0e12e19 Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 7 Mar 2017 15:14:48 +0100 Subject: hwrng: omap - Do not access INTMASK_REG on EIP76 The INTMASK_REG register does not exist on EIP76. Due to this, the call: omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK); ends up, through the reg_map_eip76[] array, in accessing the register at offset 0, which is the RNG_OUTPUT_0_REG. This by itself doesn't cause any problem, but clearly doesn't enable the interrupt as it was expected. On EIP76, the register that allows to enable the interrupt is RNG_CONTROL_REG. And just like RNG_INTMASK_REG, it's bit 1 of this register that allows to enable the shutdown_oflo interrupt. Fixes: 383212425c926 ("hwrng: omap - Add device variant for SafeXcel IP-76 found in Armada 8K") Cc: Signed-off-by: Thomas Petazzoni Signed-off-by: Herbert Xu --- drivers/char/hw_random/omap-rng.c | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c index d2866280f130..b1ad12552b56 100644 --- a/drivers/char/hw_random/omap-rng.c +++ b/drivers/char/hw_random/omap-rng.c @@ -408,7 +408,18 @@ static int of_get_omap_rng_device_details(struct omap_rng_dev *priv, "err = %d\n", err); } - omap_rng_write(priv, RNG_INTMASK_REG, RNG_SHUTDOWN_OFLO_MASK); + /* + * On OMAP4, enabling the shutdown_oflo interrupt is + * done in the interrupt mask register. There is no + * such register on EIP76, and it's enabled by the + * same bit in the control register + */ + if (priv->pdata->regs[RNG_INTMASK_REG]) + omap_rng_write(priv, RNG_INTMASK_REG, + RNG_SHUTDOWN_OFLO_MASK); + else + omap_rng_write(priv, RNG_CONTROL_REG, + RNG_SHUTDOWN_OFLO_MASK); } return 0; } -- cgit From a04e54f2c35823ca32d56afcd5cea5b783e2f51a Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Thu, 3 Nov 2016 23:06:53 -0700 Subject: target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export The following fixes a divide by zero OOPs with TYPE_TAPE due to pscsi_tape_read_blocksize() failing causing a zero sd->sector_size being propigated up via dev_attrib.hw_block_size. It also fixes another long-standing bug where TYPE_TAPE and TYPE_MEDIMUM_CHANGER where using pscsi_create_type_other(), which does not call scsi_device_get() to take the device reference. Instead, rename pscsi_create_type_rom() to pscsi_create_type_nondisk() and use it for all cases. Finally, also drop a dump_stack() in pscsi_get_blocks() for non TYPE_DISK, which in modern target-core can get invoked via target_sense_desc_format() during CHECK_CONDITION. Reported-by: Malcolm Haak Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_pscsi.c | 47 ++++++++++---------------------------- 1 file changed, 12 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index a8f8e53f2f57..44d92f23a3f0 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -154,7 +154,7 @@ static void pscsi_tape_read_blocksize(struct se_device *dev, buf = kzalloc(12, GFP_KERNEL); if (!buf) - return; + goto out_free; memset(cdb, 0, MAX_COMMAND_SIZE); cdb[0] = MODE_SENSE; @@ -169,9 +169,10 @@ static void pscsi_tape_read_blocksize(struct se_device *dev, * If MODE_SENSE still returns zero, set the default value to 1024. */ sdev->sector_size = (buf[9] << 16) | (buf[10] << 8) | (buf[11]); +out_free: if (!sdev->sector_size) sdev->sector_size = 1024; -out_free: + kfree(buf); } @@ -314,9 +315,10 @@ static int pscsi_add_device_to_list(struct se_device *dev, sd->lun, sd->queue_depth); } - dev->dev_attrib.hw_block_size = sd->sector_size; + dev->dev_attrib.hw_block_size = + min_not_zero((int)sd->sector_size, 512); dev->dev_attrib.hw_max_sectors = - min_t(int, sd->host->max_sectors, queue_max_hw_sectors(q)); + min_not_zero(sd->host->max_sectors, queue_max_hw_sectors(q)); dev->dev_attrib.hw_queue_depth = sd->queue_depth; /* @@ -339,8 +341,10 @@ static int pscsi_add_device_to_list(struct se_device *dev, /* * For TYPE_TAPE, attempt to determine blocksize with MODE_SENSE. */ - if (sd->type == TYPE_TAPE) + if (sd->type == TYPE_TAPE) { pscsi_tape_read_blocksize(dev, sd); + dev->dev_attrib.hw_block_size = sd->sector_size; + } return 0; } @@ -406,7 +410,7 @@ static int pscsi_create_type_disk(struct se_device *dev, struct scsi_device *sd) /* * Called with struct Scsi_Host->host_lock called. */ -static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd) +static int pscsi_create_type_nondisk(struct se_device *dev, struct scsi_device *sd) __releases(sh->host_lock) { struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr; @@ -433,28 +437,6 @@ static int pscsi_create_type_rom(struct se_device *dev, struct scsi_device *sd) return 0; } -/* - * Called with struct Scsi_Host->host_lock called. - */ -static int pscsi_create_type_other(struct se_device *dev, - struct scsi_device *sd) - __releases(sh->host_lock) -{ - struct pscsi_hba_virt *phv = dev->se_hba->hba_ptr; - struct Scsi_Host *sh = sd->host; - int ret; - - spin_unlock_irq(sh->host_lock); - ret = pscsi_add_device_to_list(dev, sd); - if (ret) - return ret; - - pr_debug("CORE_PSCSI[%d] - Added Type: %s for %d:%d:%d:%llu\n", - phv->phv_host_id, scsi_device_type(sd->type), sh->host_no, - sd->channel, sd->id, sd->lun); - return 0; -} - static int pscsi_configure_device(struct se_device *dev) { struct se_hba *hba = dev->se_hba; @@ -542,11 +524,8 @@ static int pscsi_configure_device(struct se_device *dev) case TYPE_DISK: ret = pscsi_create_type_disk(dev, sd); break; - case TYPE_ROM: - ret = pscsi_create_type_rom(dev, sd); - break; default: - ret = pscsi_create_type_other(dev, sd); + ret = pscsi_create_type_nondisk(dev, sd); break; } @@ -611,8 +590,7 @@ static void pscsi_free_device(struct se_device *dev) else if (pdv->pdv_lld_host) scsi_host_put(pdv->pdv_lld_host); - if ((sd->type == TYPE_DISK) || (sd->type == TYPE_ROM)) - scsi_device_put(sd); + scsi_device_put(sd); pdv->pdv_sd = NULL; } @@ -1064,7 +1042,6 @@ static sector_t pscsi_get_blocks(struct se_device *dev) if (pdv->pdv_bd && pdv->pdv_bd->bd_part) return pdv->pdv_bd->bd_part->nr_sects; - dump_stack(); return 0; } -- cgit From 13603685c1f12c67a7a2427f00b63f39a2b6f7c9 Mon Sep 17 00:00:00 2001 From: Max Lohrmann Date: Tue, 7 Mar 2017 22:09:56 -0800 Subject: target: Fix VERIFY_16 handling in sbc_parse_cdb As reported by Max, the Windows 2008 R2 chkdsk utility expects VERIFY_16 to be supported, and does not handle the returned CHECK_CONDITION properly, resulting in an infinite loop. The kernel will log huge amounts of this error: kernel: TARGET_CORE[iSCSI]: Unsupported SCSI Opcode 0x8f, sending CHECK_CONDITION. Signed-off-by: Max Lohrmann Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_sbc.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 68d8aef7ab78..c194063f169b 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -1105,9 +1105,15 @@ sbc_parse_cdb(struct se_cmd *cmd, struct sbc_ops *ops) return ret; break; case VERIFY: + case VERIFY_16: size = 0; - sectors = transport_get_sectors_10(cdb); - cmd->t_task_lba = transport_lba_32(cdb); + if (cdb[0] == VERIFY) { + sectors = transport_get_sectors_10(cdb); + cmd->t_task_lba = transport_lba_32(cdb); + } else { + sectors = transport_get_sectors_16(cdb); + cmd->t_task_lba = transport_lba_64(cdb); + } cmd->execute_cmd = sbc_emulate_noop; goto check_lba; case REZERO_UNIT: -- cgit From 69eb1596b4df8ca834ba6f9a3df40f78943f6dca Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Fri, 17 Feb 2017 15:32:23 +0100 Subject: staging: octeon: remove unused variable A cleanup patch left one local variable without a reference: drivers/staging/octeon/ethernet-rx.c:339:28: warning: unused variable 'priv' [-Wunused-variable] This removes the declaration too. Fixes: 66812da3a689 ("staging: octeon: Use net_device_stats from struct net_device") Signed-off-by: Arnd Bergmann Signed-off-by: Greg Kroah-Hartman --- drivers/staging/octeon/ethernet-rx.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c index 7f8cf875157c..65a285631994 100644 --- a/drivers/staging/octeon/ethernet-rx.c +++ b/drivers/staging/octeon/ethernet-rx.c @@ -336,7 +336,6 @@ static int cvm_oct_poll(struct oct_rx_group *rx_group, int budget) if (likely((port < TOTAL_NUMBER_OF_PORTS) && cvm_oct_device[port])) { struct net_device *dev = cvm_oct_device[port]; - struct octeon_ethernet *priv = netdev_priv(dev); /* * Only accept packets for devices that are -- cgit From 35b2719e72d375f3e32c819858165668d948d5f2 Mon Sep 17 00:00:00 2001 From: Felipe Balbi Date: Wed, 8 Mar 2017 13:56:37 +0200 Subject: usb: dwc3: gadget: make to increment req->remaining in all cases Sometimes, we might get a completion for a TRB which is left with HWO bit. Even in these cases, we should increment req->remaining to properly report total transferred size. I noticed this while debuggin a separate problem seen with MSC tests from USBCV. Sometimes we would erroneously report a completion for a 512-byte transfer when, in reality, we transferred 0 bytes. Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 3db5eeae2bfb..0d75158e43fe 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -2189,12 +2189,12 @@ static int __dwc3_cleanup_done_trbs(struct dwc3 *dwc, struct dwc3_ep *dep, return 1; } - if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN) - return 1; - count = trb->size & DWC3_TRB_SIZE_MASK; req->remaining += count; + if ((trb->ctrl & DWC3_TRB_CTRL_HWO) && status != -ESHUTDOWN) + return 1; + if (dep->direction) { if (count) { trb_status = DWC3_TRB_SIZE_TRBSTS(trb->size); -- cgit From 0b1d250afb8eb9d65afb568bac9b9f9253a82b49 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 6 Mar 2017 17:36:37 +0100 Subject: USB: serial: io_ti: fix NULL-deref in interrupt callback Fix a NULL-pointer dereference in the interrupt callback should a malicious device send data containing a bad port number by adding the missing sanity check. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/io_ti.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index ceaeebaa6f90..4561dd4cde8b 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -1674,6 +1674,12 @@ static void edge_interrupt_callback(struct urb *urb) function = TIUMP_GET_FUNC_FROM_CODE(data[0]); dev_dbg(dev, "%s - port_number %d, function %d, info 0x%x\n", __func__, port_number, function, data[1]); + + if (port_number >= edge_serial->serial->num_ports) { + dev_err(dev, "bad port number %d\n", port_number); + goto exit; + } + port = edge_serial->serial->port[port_number]; edge_port = usb_get_serial_port_data(port); if (!edge_port) { -- cgit From 30572418b445d85fcfe6c8fe84c947d2606767d8 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 6 Mar 2017 17:36:38 +0100 Subject: USB: serial: omninet: fix reference leaks at open This driver needlessly took another reference to the tty on open, a reference which was then never released on close. This lead to not just a leak of the tty, but also a driver reference leak that prevented the driver from being unloaded after a port had once been opened. Fixes: 4a90f09b20f4 ("tty: usb-serial krefs") Cc: stable # 2.6.28 Signed-off-by: Johan Hovold --- drivers/usb/serial/omninet.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index a180b17d2432..76564b3bebb9 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -142,12 +142,6 @@ static int omninet_port_remove(struct usb_serial_port *port) static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port) { - struct usb_serial *serial = port->serial; - struct usb_serial_port *wport; - - wport = serial->port[1]; - tty_port_tty_set(&wport->port, tty); - return usb_serial_generic_open(tty, port); } -- cgit From 367ec1706745912702c187722065285cd4d2aee7 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 6 Mar 2017 17:36:39 +0100 Subject: USB: serial: omninet: drop open callback Remove the now redundant open callback and let core call the generic handler for us instead. Signed-off-by: Johan Hovold --- drivers/usb/serial/omninet.c | 7 ------- 1 file changed, 7 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c index 76564b3bebb9..dd706953b466 100644 --- a/drivers/usb/serial/omninet.c +++ b/drivers/usb/serial/omninet.c @@ -31,7 +31,6 @@ #define BT_IGNITIONPRO_ID 0x2000 /* function prototypes */ -static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port); static void omninet_process_read_urb(struct urb *urb); static void omninet_write_bulk_callback(struct urb *urb); static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port, @@ -60,7 +59,6 @@ static struct usb_serial_driver zyxel_omninet_device = { .attach = omninet_attach, .port_probe = omninet_port_probe, .port_remove = omninet_port_remove, - .open = omninet_open, .write = omninet_write, .write_room = omninet_write_room, .write_bulk_callback = omninet_write_bulk_callback, @@ -140,11 +138,6 @@ static int omninet_port_remove(struct usb_serial_port *port) return 0; } -static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port) -{ - return usb_serial_generic_open(tty, port); -} - #define OMNINET_HEADERLEN 4 #define OMNINET_BULKOUTSIZE 64 #define OMNINET_PAYLOADSIZE (OMNINET_BULKOUTSIZE - OMNINET_HEADERLEN) -- cgit From 654b404f2a222f918af9b0cd18ad469d0c941a8e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 6 Mar 2017 17:36:40 +0100 Subject: USB: serial: io_ti: fix information leak in completion handler Add missing sanity check to the bulk-in completion handler to avoid an integer underflow that can be triggered by a malicious device. This avoids leaking 128 kB of memory content from after the URB transfer buffer to user space. Fixes: 8c209e6782ca ("USB: make actual_length in struct urb field u32") Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable # 2.6.30 Signed-off-by: Johan Hovold --- drivers/usb/serial/io_ti.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c index 4561dd4cde8b..a76b95d32157 100644 --- a/drivers/usb/serial/io_ti.c +++ b/drivers/usb/serial/io_ti.c @@ -1761,7 +1761,7 @@ static void edge_bulk_in_callback(struct urb *urb) port_number = edge_port->port->port_number; - if (edge_port->lsr_event) { + if (urb->actual_length > 0 && edge_port->lsr_event) { edge_port->lsr_event = 0; dev_dbg(dev, "%s ===== Port %u LSR Status = %02x, Data = %02x ======\n", __func__, port_number, edge_port->lsr_mask, *data); -- cgit From 8c76d7cd520ebffc1ea9ea0850d87a224a50c7f2 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 6 Mar 2017 17:36:41 +0100 Subject: USB: serial: safe_serial: fix information leak in completion handler Add missing sanity check to the bulk-in completion handler to avoid an integer underflow that could be triggered by a malicious device. This avoids leaking up to 56 bytes from after the URB transfer buffer to user space. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Cc: stable Signed-off-by: Johan Hovold --- drivers/usb/serial/safe_serial.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/serial/safe_serial.c b/drivers/usb/serial/safe_serial.c index 93c6c9b08daa..8a069aa154ed 100644 --- a/drivers/usb/serial/safe_serial.c +++ b/drivers/usb/serial/safe_serial.c @@ -200,6 +200,11 @@ static void safe_process_read_urb(struct urb *urb) if (!safe) goto out; + if (length < 2) { + dev_err(&port->dev, "malformed packet\n"); + return; + } + fcs = fcs_compute10(data, length, CRC10_INITFCS); if (fcs) { dev_err(&port->dev, "%s - bad CRC %x\n", __func__, fcs); -- cgit From 2501c1bb054290679baad0ff7f4f07c714251f4c Mon Sep 17 00:00:00 2001 From: Chris Brandt Date: Mon, 6 Mar 2017 15:20:51 -0500 Subject: i2c: riic: fix restart condition While modifying the driver to use the STOP interrupt, the completion of the intermediate transfers need to wake the driver back up in order to initiate the next transfer (restart condition). Otherwise you get never ending interrupts and only the first transfer sent. Fixes: 71ccea095ea1 ("i2c: riic: correctly finish transfers") Reported-by: Simon Horman Signed-off-by: Chris Brandt Tested-by: Simon Horman Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-riic.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-riic.c b/drivers/i2c/busses/i2c-riic.c index 8f11d347b3ec..c811af4c8d81 100644 --- a/drivers/i2c/busses/i2c-riic.c +++ b/drivers/i2c/busses/i2c-riic.c @@ -218,8 +218,12 @@ static irqreturn_t riic_tend_isr(int irq, void *data) } if (riic->is_last || riic->err) { - riic_clear_set_bit(riic, 0, ICIER_SPIE, RIIC_ICIER); + riic_clear_set_bit(riic, ICIER_TEIE, ICIER_SPIE, RIIC_ICIER); writeb(ICCR2_SP, riic->base + RIIC_ICCR2); + } else { + /* Transfer is complete, but do not send STOP */ + riic_clear_set_bit(riic, ICIER_TEIE, 0, RIIC_ICIER); + complete(&riic->msg_done); } return IRQ_HANDLED; -- cgit From 0bc315381fe9ed9fb91db8b0e82171b645ac008f Mon Sep 17 00:00:00 2001 From: Johannes Thumshirn Date: Mon, 6 Mar 2017 11:23:35 +0100 Subject: zram: set physical queue limits to avoid array out of bounds accesses zram can handle at most SECTORS_PER_PAGE sectors in a bio's bvec. When using the NVMe over Fabrics loopback target which potentially sends a huge bulk of pages attached to the bio's bvec this results in a kernel panic because of array out of bounds accesses in zram_decompress_page(). Signed-off-by: Johannes Thumshirn Reviewed-by: Hannes Reinecke Reviewed-by: Sergey Senozhatsky Signed-off-by: Jens Axboe --- drivers/block/zram/zram_drv.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/block/zram/zram_drv.c b/drivers/block/zram/zram_drv.c index e27d89a36c34..dceb5edd1e54 100644 --- a/drivers/block/zram/zram_drv.c +++ b/drivers/block/zram/zram_drv.c @@ -1189,6 +1189,8 @@ static int zram_add(void) blk_queue_io_min(zram->disk->queue, PAGE_SIZE); blk_queue_io_opt(zram->disk->queue, PAGE_SIZE); zram->disk->queue->limits.discard_granularity = PAGE_SIZE; + zram->disk->queue->limits.max_sectors = SECTORS_PER_PAGE; + zram->disk->queue->limits.chunk_sectors = 0; blk_queue_max_discard_sectors(zram->disk->queue, UINT_MAX); /* * zram_bio_discard() will clear all logical blocks if logical block -- cgit From 02dbfa5e5583523035f05636c614a0eca77f1aab Mon Sep 17 00:00:00 2001 From: Qi Hou Date: Fri, 3 Mar 2017 15:57:11 +0800 Subject: i2c: add missing of_node_put in i2c_mux_del_adapters Refcount of of_node is increased with of_node_get() in i2c_mux_add_adapter(). It must be decreased with of_node_put() in i2c_mux_del_adapters(). Signe-off-by: Qi Hou Reviewed-by: Zhang Xiao Acked-by: Peter Rosin Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-mux.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c index 83768e85a919..2178266bca79 100644 --- a/drivers/i2c/i2c-mux.c +++ b/drivers/i2c/i2c-mux.c @@ -429,6 +429,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) while (muxc->num_adapters) { struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters]; struct i2c_mux_priv *priv = adap->algo_data; + struct device_node *np = adap->dev.of_node; muxc->adapter[muxc->num_adapters] = NULL; @@ -438,6 +439,7 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) sysfs_remove_link(&priv->adap.dev.kobj, "mux_device"); i2c_del_adapter(adap); + of_node_put(np); kfree(priv); } } -- cgit From 2de3ec4f1d4ba6ee380478055104eb918bd50cce Mon Sep 17 00:00:00 2001 From: Jaedon Shin Date: Fri, 3 Mar 2017 10:55:03 +0900 Subject: i2c: brcmstb: Fix START and STOP conditions The BSC data buffers to send and receive data are each of size 32 bytes or 8 bytes 'xfersz' depending on SoC. The problem observed for all the combined message transfer was if length of data transfer was a multiple of 'xfersz' a repeated START was being transmitted by BSC driver. Fixed this by appropriately setting START/STOP conditions for such transfers. Fixes: dd1aa2524bc5 ("i2c: brcmstb: Add Broadcom settop SoC i2c controller driver") Signed-off-by: Jaedon Shin Acked-by: Kamal Dasu Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-brcmstb.c | 27 +++++++++++++++++++++------ 1 file changed, 21 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-brcmstb.c b/drivers/i2c/busses/i2c-brcmstb.c index 0652281662a8..78792b4d6437 100644 --- a/drivers/i2c/busses/i2c-brcmstb.c +++ b/drivers/i2c/busses/i2c-brcmstb.c @@ -465,6 +465,7 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter, u8 *tmp_buf; int len = 0; int xfersz = brcmstb_i2c_get_xfersz(dev); + u32 cond, cond_per_msg; if (dev->is_suspended) return -EBUSY; @@ -481,10 +482,11 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter, pmsg->buf ? pmsg->buf[0] : '0', pmsg->len); if (i < (num - 1) && (msgs[i + 1].flags & I2C_M_NOSTART)) - brcmstb_set_i2c_start_stop(dev, ~(COND_START_STOP)); + cond = ~COND_START_STOP; else - brcmstb_set_i2c_start_stop(dev, - COND_RESTART | COND_NOSTOP); + cond = COND_RESTART | COND_NOSTOP; + + brcmstb_set_i2c_start_stop(dev, cond); /* Send slave address */ if (!(pmsg->flags & I2C_M_NOSTART)) { @@ -497,13 +499,24 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter, } } + cond_per_msg = cond; + /* Perform data transfer */ while (len) { bytes_to_xfer = min(len, xfersz); - if (len <= xfersz && i == (num - 1)) - brcmstb_set_i2c_start_stop(dev, - ~(COND_START_STOP)); + if (len <= xfersz) { + if (i == (num - 1)) + cond_per_msg = cond_per_msg & + ~(COND_RESTART | COND_NOSTOP); + else + cond_per_msg = cond; + } else { + cond_per_msg = (cond_per_msg & ~COND_RESTART) | + COND_NOSTOP; + } + + brcmstb_set_i2c_start_stop(dev, cond_per_msg); rc = brcmstb_i2c_xfer_bsc_data(dev, tmp_buf, bytes_to_xfer, pmsg); @@ -512,6 +525,8 @@ static int brcmstb_i2c_xfer(struct i2c_adapter *adapter, len -= bytes_to_xfer; tmp_buf += bytes_to_xfer; + + cond_per_msg = COND_NOSTART | COND_NOSTOP; } } -- cgit From 1945250d979203ed326b5a44fd705b6b2c46eec5 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Mon, 27 Feb 2017 20:25:05 +0100 Subject: i2c: m65xx: drop superfluous quirk structure All length fields in Linux I2C are u16, so a HW length limitation of 16 bit lengths is not a limitation. Remove the quirk structure. Tested-by: Jun Gao Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-mt65xx.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c index 4a7d9bc2142b..45d61714c81b 100644 --- a/drivers/i2c/busses/i2c-mt65xx.c +++ b/drivers/i2c/busses/i2c-mt65xx.c @@ -172,14 +172,6 @@ static const struct i2c_adapter_quirks mt6577_i2c_quirks = { .max_comb_2nd_msg_len = 31, }; -static const struct i2c_adapter_quirks mt8173_i2c_quirks = { - .max_num_msgs = 65535, - .max_write_len = 65535, - .max_read_len = 65535, - .max_comb_1st_msg_len = 65535, - .max_comb_2nd_msg_len = 65535, -}; - static const struct mtk_i2c_compatible mt6577_compat = { .quirks = &mt6577_i2c_quirks, .pmic_i2c = 0, @@ -199,7 +191,6 @@ static const struct mtk_i2c_compatible mt6589_compat = { }; static const struct mtk_i2c_compatible mt8173_compat = { - .quirks = &mt8173_i2c_quirks, .pmic_i2c = 0, .dcm = 1, .auto_restart = 1, -- cgit From b0c1e95ab44feaad8831f2c06a3473c974003b49 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Tue, 28 Feb 2017 11:10:51 -0800 Subject: i2c: copy device properties when using i2c_register_board_info() This will allow marking device property lists as __initdata, the same as board info structures themselves. Signed-off-by: Dmitry Torokhov Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-boardinfo.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c index 6e5fac6a5262..5b8f6c3a6950 100644 --- a/drivers/i2c/i2c-boardinfo.c +++ b/drivers/i2c/i2c-boardinfo.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include @@ -55,6 +56,7 @@ EXPORT_SYMBOL_GPL(__i2c_first_dynamic_bus_num); * * The board info passed can safely be __initdata, but be careful of embedded * pointers (for platform_data, functions, etc) since that won't be copied. + * Device properties are deep-copied though. */ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned len) { @@ -78,6 +80,14 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig devinfo->busnum = busnum; devinfo->board_info = *info; + + if (info->properties) { + devinfo->board_info.properties = + property_entries_dup(info->properties); + if (IS_ERR(devinfo->board_info.properties)) + return PTR_ERR(devinfo->board_info.properties); + } + list_add_tail(&devinfo->list, &__i2c_board_list); } -- cgit From 3b0277f198ac928f323c42e180680d2f79aa980d Mon Sep 17 00:00:00 2001 From: Heiner Kallweit Date: Tue, 7 Mar 2017 21:06:38 +0100 Subject: i2c: meson: fix wrong variable usage in meson_i2c_put_data Most likely a copy & paste error. Signed-off-by: Heiner Kallweit Acked-by: Jerome Brunet Signed-off-by: Wolfram Sang Fixes: 30021e3707a7 ("i2c: add support for Amlogic Meson I2C controller") --- drivers/i2c/busses/i2c-meson.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-meson.c b/drivers/i2c/busses/i2c-meson.c index 2aa61bbbd307..73b97c71a484 100644 --- a/drivers/i2c/busses/i2c-meson.c +++ b/drivers/i2c/busses/i2c-meson.c @@ -175,7 +175,7 @@ static void meson_i2c_put_data(struct meson_i2c *i2c, char *buf, int len) wdata1 |= *buf++ << ((i - 4) * 8); writel(wdata0, i2c->regs + REG_TOK_WDATA0); - writel(wdata0, i2c->regs + REG_TOK_WDATA1); + writel(wdata1, i2c->regs + REG_TOK_WDATA1); dev_dbg(i2c->dev, "%s: data %08x %08x len %d\n", __func__, wdata0, wdata1, len); -- cgit From ab809fd81fde3d416f8656d8f814a0777fb9b65e Mon Sep 17 00:00:00 2001 From: Zhangfei Gao Date: Tue, 27 Dec 2016 22:22:40 +0800 Subject: i2c: designware: add reset interface Some platforms like hi3660 need do reset first to allow accessing registers Signed-off-by: Zhangfei Gao Reviewed-by: Andy Shevchenko Tested-by: Ramiro Oliveira Acked-by: Jarkko Nikula Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-designware-core.h | 1 + drivers/i2c/busses/i2c-designware-platdrv.c | 28 ++++++++++++++++++++++++---- 2 files changed, 25 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h index c1db3a5a340f..d9aaf1790e0e 100644 --- a/drivers/i2c/busses/i2c-designware-core.h +++ b/drivers/i2c/busses/i2c-designware-core.h @@ -88,6 +88,7 @@ struct dw_i2c_dev { void __iomem *base; struct completion cmd_complete; struct clk *clk; + struct reset_control *rst; u32 (*get_clk_rate_khz) (struct dw_i2c_dev *dev); struct dw_pci_controller *controller; int cmd_err; diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c index 6ce431323125..79c4b4ea0539 100644 --- a/drivers/i2c/busses/i2c-designware-platdrv.c +++ b/drivers/i2c/busses/i2c-designware-platdrv.c @@ -38,6 +38,7 @@ #include #include #include +#include #include #include #include @@ -199,6 +200,14 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) dev->irq = irq; platform_set_drvdata(pdev, dev); + dev->rst = devm_reset_control_get_optional_exclusive(&pdev->dev, NULL); + if (IS_ERR(dev->rst)) { + if (PTR_ERR(dev->rst) == -EPROBE_DEFER) + return -EPROBE_DEFER; + } else { + reset_control_deassert(dev->rst); + } + if (pdata) { dev->clk_freq = pdata->i2c_scl_freq; } else { @@ -235,12 +244,13 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) && dev->clk_freq != 1000000 && dev->clk_freq != 3400000) { dev_err(&pdev->dev, "Only 100kHz, 400kHz, 1MHz and 3.4MHz supported"); - return -EINVAL; + r = -EINVAL; + goto exit_reset; } r = i2c_dw_eval_lock_support(dev); if (r) - return r; + goto exit_reset; dev->functionality = I2C_FUNC_10BIT_ADDR | DW_IC_DEFAULT_FUNCTIONALITY; @@ -286,10 +296,18 @@ static int dw_i2c_plat_probe(struct platform_device *pdev) } r = i2c_dw_probe(dev); - if (r && !dev->pm_runtime_disabled) - pm_runtime_disable(&pdev->dev); + if (r) + goto exit_probe; return r; + +exit_probe: + if (!dev->pm_runtime_disabled) + pm_runtime_disable(&pdev->dev); +exit_reset: + if (!IS_ERR_OR_NULL(dev->rst)) + reset_control_assert(dev->rst); + return r; } static int dw_i2c_plat_remove(struct platform_device *pdev) @@ -306,6 +324,8 @@ static int dw_i2c_plat_remove(struct platform_device *pdev) pm_runtime_put_sync(&pdev->dev); if (!dev->pm_runtime_disabled) pm_runtime_disable(&pdev->dev); + if (!IS_ERR_OR_NULL(dev->rst)) + reset_control_assert(dev->rst); return 0; } -- cgit From c01228db4ba965986511a5b28c478bddd7e2726e Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 8 Mar 2017 17:48:34 +0100 Subject: Revert "scsi, block: fix duplicate bdi name registration crashes" This reverts commit 0dba1314d4f81115dce711292ec7981d17231064. It causes leaking of device numbers for SCSI when SCSI registers multiple gendisks for one request_queue in succession. It can be easily reproduced using Omar's script [1] on kernel with CONFIG_DEBUG_TEST_DRIVER_REMOVE. Furthermore the protection provided by this commit is not needed anymore as the problem it was fixing got also fixed by commit 165a5e22fafb "block: Move bdi_unregister() to del_gendisk()". [1]: http://marc.info/?l=linux-block&m=148554717109098&w=2 Signed-off-by: Jan Kara Acked-by: Dan Williams Tested-by: Omar Sandoval Signed-off-by: Jens Axboe --- drivers/scsi/sd.c | 41 ++++++++--------------------------------- 1 file changed, 8 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index c7839f6c35cc..d277e8620e3e 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -3075,23 +3075,6 @@ static void sd_probe_async(void *data, async_cookie_t cookie) put_device(&sdkp->dev); } -struct sd_devt { - int idx; - struct disk_devt disk_devt; -}; - -static void sd_devt_release(struct disk_devt *disk_devt) -{ - struct sd_devt *sd_devt = container_of(disk_devt, struct sd_devt, - disk_devt); - - spin_lock(&sd_index_lock); - ida_remove(&sd_index_ida, sd_devt->idx); - spin_unlock(&sd_index_lock); - - kfree(sd_devt); -} - /** * sd_probe - called during driver initialization and whenever a * new scsi device is attached to the system. It is called once @@ -3113,7 +3096,6 @@ static void sd_devt_release(struct disk_devt *disk_devt) static int sd_probe(struct device *dev) { struct scsi_device *sdp = to_scsi_device(dev); - struct sd_devt *sd_devt; struct scsi_disk *sdkp; struct gendisk *gd; int index; @@ -3139,13 +3121,9 @@ static int sd_probe(struct device *dev) if (!sdkp) goto out; - sd_devt = kzalloc(sizeof(*sd_devt), GFP_KERNEL); - if (!sd_devt) - goto out_free; - gd = alloc_disk(SD_MINORS); if (!gd) - goto out_free_devt; + goto out_free; do { if (!ida_pre_get(&sd_index_ida, GFP_KERNEL)) @@ -3161,11 +3139,6 @@ static int sd_probe(struct device *dev) goto out_put; } - atomic_set(&sd_devt->disk_devt.count, 1); - sd_devt->disk_devt.release = sd_devt_release; - sd_devt->idx = index; - gd->disk_devt = &sd_devt->disk_devt; - error = sd_format_disk_name("sd", index, gd->disk_name, DISK_NAME_LEN); if (error) { sdev_printk(KERN_WARNING, sdp, "SCSI disk (sd) name length exceeded.\n"); @@ -3205,12 +3178,11 @@ static int sd_probe(struct device *dev) return 0; out_free_index: - put_disk_devt(&sd_devt->disk_devt); - sd_devt = NULL; + spin_lock(&sd_index_lock); + ida_remove(&sd_index_ida, index); + spin_unlock(&sd_index_lock); out_put: put_disk(gd); - out_free_devt: - kfree(sd_devt); out_free: kfree(sdkp); out: @@ -3271,7 +3243,10 @@ static void scsi_disk_release(struct device *dev) struct scsi_disk *sdkp = to_scsi_disk(dev); struct gendisk *disk = sdkp->disk; - put_disk_devt(disk->disk_devt); + spin_lock(&sd_index_lock); + ida_remove(&sd_index_ida, sdkp->index); + spin_unlock(&sd_index_lock); + disk->private_data = NULL; put_disk(disk); put_device(&sdkp->device->sdev_gendev); -- cgit From c085bd5119d5d0bdf3ef591a5563566be7dedced Mon Sep 17 00:00:00 2001 From: Jim Qu Date: Wed, 1 Mar 2017 15:53:29 +0800 Subject: drm/amd/amdgpu: fix console deadlock if late init failed Signed-off-by: Jim Qu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 6abb238b25c9..4120b351a8e5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2094,8 +2094,11 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) } r = amdgpu_late_init(adev); - if (r) + if (r) { + if (fbcon) + console_unlock(); return r; + } /* pin cursors */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { -- cgit From b78125e00fce0a858c7827dd47ce500320d6d0f7 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Tue, 28 Feb 2017 23:49:38 +0100 Subject: net: smsc: smc911x: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/smsc/smc911x.c | 51 ++++++++++++++++++++----------------- 1 file changed, 27 insertions(+), 24 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 4f19c6166182..36307d34f641 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -1446,40 +1446,40 @@ static int smc911x_close(struct net_device *dev) * Ethtool support */ static int -smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) +smc911x_ethtool_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct smc911x_local *lp = netdev_priv(dev); int ret, status; unsigned long flags; + u32 supported; DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__); - cmd->maxtxpkt = 1; - cmd->maxrxpkt = 1; if (lp->phy_type != 0) { spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_gset(&lp->mii, cmd); + ret = mii_ethtool_get_link_ksettings(&lp->mii, cmd); spin_unlock_irqrestore(&lp->lock, flags); } else { - cmd->supported = SUPPORTED_10baseT_Half | + supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_TP | SUPPORTED_AUI; if (lp->ctl_rspeed == 10) - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; else if (lp->ctl_rspeed == 100) - ethtool_cmd_speed_set(cmd, SPEED_100); - - cmd->autoneg = AUTONEG_DISABLE; - if (lp->mii.phy_id==1) - cmd->transceiver = XCVR_INTERNAL; - else - cmd->transceiver = XCVR_EXTERNAL; - cmd->port = 0; + cmd->base.speed = SPEED_100; + + cmd->base.autoneg = AUTONEG_DISABLE; + cmd->base.port = 0; SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status); - cmd->duplex = + cmd->base.duplex = (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ? DUPLEX_FULL : DUPLEX_HALF; + + ethtool_convert_legacy_u32_to_link_mode( + cmd->link_modes.supported, supported); + ret = 0; } @@ -1487,7 +1487,8 @@ smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) } static int -smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd) +smc911x_ethtool_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct smc911x_local *lp = netdev_priv(dev); int ret; @@ -1495,16 +1496,18 @@ smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd) if (lp->phy_type != 0) { spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_sset(&lp->mii, cmd); + ret = mii_ethtool_set_link_ksettings(&lp->mii, cmd); spin_unlock_irqrestore(&lp->lock, flags); } else { - if (cmd->autoneg != AUTONEG_DISABLE || - cmd->speed != SPEED_10 || - (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) || - (cmd->port != PORT_TP && cmd->port != PORT_AUI)) + if (cmd->base.autoneg != AUTONEG_DISABLE || + cmd->base.speed != SPEED_10 || + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL) || + (cmd->base.port != PORT_TP && + cmd->base.port != PORT_AUI)) return -EINVAL; - lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL; + lp->ctl_rfduplx = cmd->base.duplex == DUPLEX_FULL; ret = 0; } @@ -1686,8 +1689,6 @@ static int smc911x_ethtool_geteeprom_len(struct net_device *dev) } static const struct ethtool_ops smc911x_ethtool_ops = { - .get_settings = smc911x_ethtool_getsettings, - .set_settings = smc911x_ethtool_setsettings, .get_drvinfo = smc911x_ethtool_getdrvinfo, .get_msglevel = smc911x_ethtool_getmsglevel, .set_msglevel = smc911x_ethtool_setmsglevel, @@ -1698,6 +1699,8 @@ static const struct ethtool_ops smc911x_ethtool_ops = { .get_eeprom_len = smc911x_ethtool_geteeprom_len, .get_eeprom = smc911x_ethtool_geteeprom, .set_eeprom = smc911x_ethtool_seteeprom, + .get_link_ksettings = smc911x_ethtool_get_link_ksettings, + .set_link_ksettings = smc911x_ethtool_set_link_ksettings, }; /* -- cgit From 7b022a1b706f7684341e285e627a74a98e730301 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sat, 4 Mar 2017 12:42:39 +0100 Subject: net: smsc: smc91x: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Tested-by: Robert Jarzmik Signed-off-by: David S. Miller --- drivers/net/ethernet/smsc/smc91x.c | 47 ++++++++++++++++++++------------------ 1 file changed, 25 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index 65077c77082a..91e9bd7159ab 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -1535,32 +1535,33 @@ static int smc_close(struct net_device *dev) * Ethtool support */ static int -smc_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) +smc_ethtool_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct smc_local *lp = netdev_priv(dev); int ret; - cmd->maxtxpkt = 1; - cmd->maxrxpkt = 1; - if (lp->phy_type != 0) { spin_lock_irq(&lp->lock); - ret = mii_ethtool_gset(&lp->mii, cmd); + ret = mii_ethtool_get_link_ksettings(&lp->mii, cmd); spin_unlock_irq(&lp->lock); } else { - cmd->supported = SUPPORTED_10baseT_Half | + u32 supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_TP | SUPPORTED_AUI; if (lp->ctl_rspeed == 10) - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; else if (lp->ctl_rspeed == 100) - ethtool_cmd_speed_set(cmd, SPEED_100); + cmd->base.speed = SPEED_100; + + cmd->base.autoneg = AUTONEG_DISABLE; + cmd->base.port = 0; + cmd->base.duplex = lp->tcr_cur_mode & TCR_SWFDUP ? + DUPLEX_FULL : DUPLEX_HALF; - cmd->autoneg = AUTONEG_DISABLE; - cmd->transceiver = XCVR_INTERNAL; - cmd->port = 0; - cmd->duplex = lp->tcr_cur_mode & TCR_SWFDUP ? DUPLEX_FULL : DUPLEX_HALF; + ethtool_convert_legacy_u32_to_link_mode( + cmd->link_modes.supported, supported); ret = 0; } @@ -1569,24 +1570,26 @@ smc_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) } static int -smc_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd) +smc_ethtool_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct smc_local *lp = netdev_priv(dev); int ret; if (lp->phy_type != 0) { spin_lock_irq(&lp->lock); - ret = mii_ethtool_sset(&lp->mii, cmd); + ret = mii_ethtool_set_link_ksettings(&lp->mii, cmd); spin_unlock_irq(&lp->lock); } else { - if (cmd->autoneg != AUTONEG_DISABLE || - cmd->speed != SPEED_10 || - (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) || - (cmd->port != PORT_TP && cmd->port != PORT_AUI)) + if (cmd->base.autoneg != AUTONEG_DISABLE || + cmd->base.speed != SPEED_10 || + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL) || + (cmd->base.port != PORT_TP && cmd->base.port != PORT_AUI)) return -EINVAL; -// lp->port = cmd->port; - lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL; +// lp->port = cmd->base.port; + lp->ctl_rfduplx = cmd->base.duplex == DUPLEX_FULL; // if (netif_running(dev)) // smc_set_port(dev); @@ -1744,8 +1747,6 @@ static int smc_ethtool_seteeprom(struct net_device *dev, static const struct ethtool_ops smc_ethtool_ops = { - .get_settings = smc_ethtool_getsettings, - .set_settings = smc_ethtool_setsettings, .get_drvinfo = smc_ethtool_getdrvinfo, .get_msglevel = smc_ethtool_getmsglevel, @@ -1755,6 +1756,8 @@ static const struct ethtool_ops smc_ethtool_ops = { .get_eeprom_len = smc_ethtool_geteeprom_len, .get_eeprom = smc_ethtool_geteeprom, .set_eeprom = smc_ethtool_seteeprom, + .get_link_ksettings = smc_ethtool_get_link_ksettings, + .set_link_ksettings = smc_ethtool_set_link_ksettings, }; static const struct net_device_ops smc_netdev_ops = { -- cgit From 15883a43af0bcd10b3f3173bca4a0e60518bc154 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sat, 4 Mar 2017 16:16:12 +0100 Subject: net: sun: cassini: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/cassini.c | 98 ++++++++++++++++++++------------------ 1 file changed, 52 insertions(+), 46 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 0e8e89f17dbb..382993c1561c 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -691,7 +691,8 @@ static void cas_mif_poll(struct cas *cp, const int enable) } /* Must be invoked under cp->lock */ -static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) +static void cas_begin_auto_negotiation(struct cas *cp, + const struct ethtool_link_ksettings *ep) { u16 ctl; #if 1 @@ -704,16 +705,16 @@ static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) if (!ep) goto start_aneg; lcntl = cp->link_cntl; - if (ep->autoneg == AUTONEG_ENABLE) + if (ep->base.autoneg == AUTONEG_ENABLE) { cp->link_cntl = BMCR_ANENABLE; - else { - u32 speed = ethtool_cmd_speed(ep); + } else { + u32 speed = ep->base.speed; cp->link_cntl = 0; if (speed == SPEED_100) cp->link_cntl |= BMCR_SPEED100; else if (speed == SPEED_1000) cp->link_cntl |= CAS_BMCR_SPEED1000; - if (ep->duplex == DUPLEX_FULL) + if (ep->base.duplex == DUPLEX_FULL) cp->link_cntl |= BMCR_FULLDPLX; } #if 1 @@ -4528,19 +4529,21 @@ static void cas_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info strlcpy(info->bus_info, pci_name(cp->pdev), sizeof(info->bus_info)); } -static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int cas_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct cas *cp = netdev_priv(dev); u16 bmcr; int full_duplex, speed, pause; unsigned long flags; enum link_state linkstate = link_up; + u32 supported, advertising; - cmd->advertising = 0; - cmd->supported = SUPPORTED_Autoneg; + advertising = 0; + supported = SUPPORTED_Autoneg; if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { - cmd->supported |= SUPPORTED_1000baseT_Full; - cmd->advertising |= ADVERTISED_1000baseT_Full; + supported |= SUPPORTED_1000baseT_Full; + advertising |= ADVERTISED_1000baseT_Full; } /* Record PHY settings if HW is on. */ @@ -4548,17 +4551,15 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) bmcr = 0; linkstate = cp->lstate; if (CAS_PHY_MII(cp->phy_type)) { - cmd->port = PORT_MII; - cmd->transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? - XCVR_INTERNAL : XCVR_EXTERNAL; - cmd->phy_address = cp->phy_addr; - cmd->advertising |= ADVERTISED_TP | ADVERTISED_MII | + cmd->base.port = PORT_MII; + cmd->base.phy_address = cp->phy_addr; + advertising |= ADVERTISED_TP | ADVERTISED_MII | ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; - cmd->supported |= + supported |= (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | @@ -4574,11 +4575,10 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) } } else { - cmd->port = PORT_FIBRE; - cmd->transceiver = XCVR_INTERNAL; - cmd->phy_address = 0; - cmd->supported |= SUPPORTED_FIBRE; - cmd->advertising |= ADVERTISED_FIBRE; + cmd->base.port = PORT_FIBRE; + cmd->base.phy_address = 0; + supported |= SUPPORTED_FIBRE; + advertising |= ADVERTISED_FIBRE; if (cp->hw_running) { /* pcs uses the same bits as mii */ @@ -4590,21 +4590,20 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) spin_unlock_irqrestore(&cp->lock, flags); if (bmcr & BMCR_ANENABLE) { - cmd->advertising |= ADVERTISED_Autoneg; - cmd->autoneg = AUTONEG_ENABLE; - ethtool_cmd_speed_set(cmd, ((speed == 10) ? + advertising |= ADVERTISED_Autoneg; + cmd->base.autoneg = AUTONEG_ENABLE; + cmd->base.speed = ((speed == 10) ? SPEED_10 : ((speed == 1000) ? - SPEED_1000 : SPEED_100))); - cmd->duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + SPEED_1000 : SPEED_100)); + cmd->base.duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; } else { - cmd->autoneg = AUTONEG_DISABLE; - ethtool_cmd_speed_set(cmd, ((bmcr & CAS_BMCR_SPEED1000) ? + cmd->base.autoneg = AUTONEG_DISABLE; + cmd->base.speed = ((bmcr & CAS_BMCR_SPEED1000) ? SPEED_1000 : ((bmcr & BMCR_SPEED100) ? - SPEED_100 : SPEED_10))); - cmd->duplex = - (bmcr & BMCR_FULLDPLX) ? + SPEED_100 : SPEED_10)); + cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } if (linkstate != link_up) { @@ -4619,39 +4618,46 @@ static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) * settings that we configured. */ if (cp->link_cntl & BMCR_ANENABLE) { - ethtool_cmd_speed_set(cmd, 0); - cmd->duplex = 0xff; + cmd->base.speed = 0; + cmd->base.duplex = 0xff; } else { - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; if (cp->link_cntl & BMCR_SPEED100) { - ethtool_cmd_speed_set(cmd, SPEED_100); + cmd->base.speed = SPEED_100; } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { - ethtool_cmd_speed_set(cmd, SPEED_1000); + cmd->base.speed = SPEED_1000; } - cmd->duplex = (cp->link_cntl & BMCR_FULLDPLX)? + cmd->base.duplex = (cp->link_cntl & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } } + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); + return 0; } -static int cas_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int cas_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct cas *cp = netdev_priv(dev); unsigned long flags; - u32 speed = ethtool_cmd_speed(cmd); + u32 speed = cmd->base.speed; /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) + if (cmd->base.autoneg != AUTONEG_ENABLE && + cmd->base.autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && + if (cmd->base.autoneg == AUTONEG_DISABLE && ((speed != SPEED_1000 && speed != SPEED_100 && speed != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL))) return -EINVAL; /* Apply settings and restart link process. */ @@ -4753,8 +4759,6 @@ static void cas_get_ethtool_stats(struct net_device *dev, static const struct ethtool_ops cas_ethtool_ops = { .get_drvinfo = cas_get_drvinfo, - .get_settings = cas_get_settings, - .set_settings = cas_set_settings, .nway_reset = cas_nway_reset, .get_link = cas_get_link, .get_msglevel = cas_get_msglevel, @@ -4764,6 +4768,8 @@ static const struct ethtool_ops cas_ethtool_ops = { .get_sset_count = cas_get_sset_count, .get_strings = cas_get_strings, .get_ethtool_stats = cas_get_ethtool_stats, + .get_link_ksettings = cas_get_link_ksettings, + .set_link_ksettings = cas_set_link_ksettings, }; static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -- cgit From 56c07e9501e875883584c00fe6977c3addb1f873 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sat, 4 Mar 2017 17:50:06 +0100 Subject: net: sun: niu: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/niu.c | 37 ++++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 17 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 57978056b336..2dcca249eb9c 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -6813,7 +6813,8 @@ static void niu_get_drvinfo(struct net_device *dev, sizeof(info->bus_info)); } -static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int niu_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct niu *np = netdev_priv(dev); struct niu_link_config *lp; @@ -6821,28 +6822,30 @@ static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) lp = &np->link_config; memset(cmd, 0, sizeof(*cmd)); - cmd->phy_address = np->phy_addr; - cmd->supported = lp->supported; - cmd->advertising = lp->active_advertising; - cmd->autoneg = lp->active_autoneg; - ethtool_cmd_speed_set(cmd, lp->active_speed); - cmd->duplex = lp->active_duplex; - cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; - cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? - XCVR_EXTERNAL : XCVR_INTERNAL; + cmd->base.phy_address = np->phy_addr; + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + lp->supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + lp->active_advertising); + cmd->base.autoneg = lp->active_autoneg; + cmd->base.speed = lp->active_speed; + cmd->base.duplex = lp->active_duplex; + cmd->base.port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; return 0; } -static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int niu_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct niu *np = netdev_priv(dev); struct niu_link_config *lp = &np->link_config; - lp->advertising = cmd->advertising; - lp->speed = ethtool_cmd_speed(cmd); - lp->duplex = cmd->duplex; - lp->autoneg = cmd->autoneg; + ethtool_convert_link_mode_to_legacy_u32(&lp->advertising, + cmd->link_modes.advertising); + lp->speed = cmd->base.speed; + lp->duplex = cmd->base.duplex; + lp->autoneg = cmd->base.autoneg; return niu_init_link(np); } @@ -7902,14 +7905,14 @@ static const struct ethtool_ops niu_ethtool_ops = { .nway_reset = niu_nway_reset, .get_eeprom_len = niu_get_eeprom_len, .get_eeprom = niu_get_eeprom, - .get_settings = niu_get_settings, - .set_settings = niu_set_settings, .get_strings = niu_get_strings, .get_sset_count = niu_get_sset_count, .get_ethtool_stats = niu_get_ethtool_stats, .set_phys_id = niu_set_phys_id, .get_rxnfc = niu_get_nfc, .set_rxnfc = niu_set_nfc, + .get_link_ksettings = niu_get_link_ksettings, + .set_link_ksettings = niu_set_link_ksettings, }; static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, -- cgit From 9dff2defef3ce1933a44d59ec139987e19645841 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sun, 5 Mar 2017 00:04:18 +0100 Subject: net: sun: sungem: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sungem.c | 98 +++++++++++++++++++++++---------------- 1 file changed, 57 insertions(+), 41 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c index 5c5952e782cd..dbfca0466760 100644 --- a/drivers/net/ethernet/sun/sungem.c +++ b/drivers/net/ethernet/sun/sungem.c @@ -1250,12 +1250,17 @@ static void gem_stop_dma(struct gem *gp) // XXX dbl check what that function should do when called on PCS PHY -static void gem_begin_auto_negotiation(struct gem *gp, struct ethtool_cmd *ep) +static void gem_begin_auto_negotiation(struct gem *gp, + const struct ethtool_link_ksettings *ep) { u32 advertise, features; int autoneg; int speed; int duplex; + u32 advertising; + + ethtool_convert_link_mode_to_legacy_u32(&advertising, + ep->link_modes.advertising); if (gp->phy_type != phy_mii_mdio0 && gp->phy_type != phy_mii_mdio1) @@ -1278,13 +1283,13 @@ static void gem_begin_auto_negotiation(struct gem *gp, struct ethtool_cmd *ep) /* Setup link parameters */ if (!ep) goto start_aneg; - if (ep->autoneg == AUTONEG_ENABLE) { - advertise = ep->advertising; + if (ep->base.autoneg == AUTONEG_ENABLE) { + advertise = advertising; autoneg = 1; } else { autoneg = 0; - speed = ethtool_cmd_speed(ep); - duplex = ep->duplex; + speed = ep->base.speed; + duplex = ep->base.duplex; } start_aneg: @@ -2515,85 +2520,96 @@ static void gem_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info strlcpy(info->bus_info, pci_name(gp->pdev), sizeof(info->bus_info)); } -static int gem_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int gem_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct gem *gp = netdev_priv(dev); + u32 supported, advertising; if (gp->phy_type == phy_mii_mdio0 || gp->phy_type == phy_mii_mdio1) { if (gp->phy_mii.def) - cmd->supported = gp->phy_mii.def->features; + supported = gp->phy_mii.def->features; else - cmd->supported = (SUPPORTED_10baseT_Half | + supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full); /* XXX hardcoded stuff for now */ - cmd->port = PORT_MII; - cmd->transceiver = XCVR_EXTERNAL; - cmd->phy_address = 0; /* XXX fixed PHYAD */ + cmd->base.port = PORT_MII; + cmd->base.phy_address = 0; /* XXX fixed PHYAD */ /* Return current PHY settings */ - cmd->autoneg = gp->want_autoneg; - ethtool_cmd_speed_set(cmd, gp->phy_mii.speed); - cmd->duplex = gp->phy_mii.duplex; - cmd->advertising = gp->phy_mii.advertising; + cmd->base.autoneg = gp->want_autoneg; + cmd->base.speed = gp->phy_mii.speed; + cmd->base.duplex = gp->phy_mii.duplex; + advertising = gp->phy_mii.advertising; /* If we started with a forced mode, we don't have a default * advertise set, we need to return something sensible so * userland can re-enable autoneg properly. */ - if (cmd->advertising == 0) - cmd->advertising = cmd->supported; + if (advertising == 0) + advertising = supported; } else { // XXX PCS ? - cmd->supported = + supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg); - cmd->advertising = cmd->supported; - ethtool_cmd_speed_set(cmd, 0); - cmd->duplex = cmd->port = cmd->phy_address = - cmd->transceiver = cmd->autoneg = 0; + advertising = supported; + cmd->base.speed = 0; + cmd->base.duplex = 0; + cmd->base.port = 0; + cmd->base.phy_address = 0; + cmd->base.autoneg = 0; /* serdes means usually a Fibre connector, with most fixed */ if (gp->phy_type == phy_serdes) { - cmd->port = PORT_FIBRE; - cmd->supported = (SUPPORTED_1000baseT_Half | + cmd->base.port = PORT_FIBRE; + supported = (SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE | SUPPORTED_Autoneg | SUPPORTED_Pause | SUPPORTED_Asym_Pause); - cmd->advertising = cmd->supported; - cmd->transceiver = XCVR_INTERNAL; + advertising = supported; if (gp->lstate == link_up) - ethtool_cmd_speed_set(cmd, SPEED_1000); - cmd->duplex = DUPLEX_FULL; - cmd->autoneg = 1; + cmd->base.speed = SPEED_1000; + cmd->base.duplex = DUPLEX_FULL; + cmd->base.autoneg = 1; } } - cmd->maxtxpkt = cmd->maxrxpkt = 0; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); return 0; } -static int gem_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int gem_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct gem *gp = netdev_priv(dev); - u32 speed = ethtool_cmd_speed(cmd); + u32 speed = cmd->base.speed; + u32 advertising; + + ethtool_convert_link_mode_to_legacy_u32(&advertising, + cmd->link_modes.advertising); /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) + if (cmd->base.autoneg != AUTONEG_ENABLE && + cmd->base.autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->autoneg == AUTONEG_ENABLE && - cmd->advertising == 0) + if (cmd->base.autoneg == AUTONEG_ENABLE && + advertising == 0) return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && + if (cmd->base.autoneg == AUTONEG_DISABLE && ((speed != SPEED_1000 && speed != SPEED_100 && speed != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL))) return -EINVAL; /* Apply settings and restart link process. */ @@ -2666,13 +2682,13 @@ static int gem_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) static const struct ethtool_ops gem_ethtool_ops = { .get_drvinfo = gem_get_drvinfo, .get_link = ethtool_op_get_link, - .get_settings = gem_get_settings, - .set_settings = gem_set_settings, .nway_reset = gem_nway_reset, .get_msglevel = gem_get_msglevel, .set_msglevel = gem_set_msglevel, .get_wol = gem_get_wol, .set_wol = gem_set_wol, + .get_link_ksettings = gem_get_link_ksettings, + .set_link_ksettings = gem_set_link_ksettings, }; static int gem_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) -- cgit From 8103015df56d97cc3a4167d2e070ee14cc022bae Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sun, 5 Mar 2017 22:25:39 +0100 Subject: net: sun: sunhme: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/sun/sunhme.c | 62 +++++++++++++++++++++------------------ 1 file changed, 34 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c index 72ff05cd3ed8..53ff66ef53ac 100644 --- a/drivers/net/ethernet/sun/sunhme.c +++ b/drivers/net/ethernet/sun/sunhme.c @@ -1294,9 +1294,10 @@ static void happy_meal_init_rings(struct happy_meal *hp) } /* hp->happy_lock must be held */ -static void happy_meal_begin_auto_negotiation(struct happy_meal *hp, - void __iomem *tregs, - struct ethtool_cmd *ep) +static void +happy_meal_begin_auto_negotiation(struct happy_meal *hp, + void __iomem *tregs, + const struct ethtool_link_ksettings *ep) { int timeout; @@ -1309,7 +1310,7 @@ static void happy_meal_begin_auto_negotiation(struct happy_meal *hp, /* XXX Check BMSR_ANEGCAPABLE, should not be necessary though. */ hp->sw_advertise = happy_meal_tcvr_read(hp, tregs, MII_ADVERTISE); - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { + if (!ep || ep->base.autoneg == AUTONEG_ENABLE) { /* Advertise everything we can support. */ if (hp->sw_bmsr & BMSR_10HALF) hp->sw_advertise |= (ADVERTISE_10HALF); @@ -1384,14 +1385,14 @@ force_link: /* Disable auto-negotiation in BMCR, enable the duplex and * speed setting, init the timer state machine, and fire it off. */ - if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { + if (!ep || ep->base.autoneg == AUTONEG_ENABLE) { hp->sw_bmcr = BMCR_SPEED100; } else { - if (ethtool_cmd_speed(ep) == SPEED_100) + if (ep->base.speed == SPEED_100) hp->sw_bmcr = BMCR_SPEED100; else hp->sw_bmcr = 0; - if (ep->duplex == DUPLEX_FULL) + if (ep->base.duplex == DUPLEX_FULL) hp->sw_bmcr |= BMCR_FULLDPLX; } happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); @@ -2434,20 +2435,21 @@ static void happy_meal_set_multicast(struct net_device *dev) } /* Ethtool support... */ -static int hme_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int hme_get_link_ksettings(struct net_device *dev, + struct ethtool_link_ksettings *cmd) { struct happy_meal *hp = netdev_priv(dev); u32 speed; + u32 supported; - cmd->supported = + supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII); /* XXX hardcoded stuff for now */ - cmd->port = PORT_TP; /* XXX no MII support */ - cmd->transceiver = XCVR_INTERNAL; /* XXX no external xcvr support */ - cmd->phy_address = 0; /* XXX fixed PHYAD */ + cmd->base.port = PORT_TP; /* XXX no MII support */ + cmd->base.phy_address = 0; /* XXX fixed PHYAD */ /* Record PHY settings. */ spin_lock_irq(&hp->happy_lock); @@ -2456,41 +2458,45 @@ static int hme_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) spin_unlock_irq(&hp->happy_lock); if (hp->sw_bmcr & BMCR_ANENABLE) { - cmd->autoneg = AUTONEG_ENABLE; + cmd->base.autoneg = AUTONEG_ENABLE; speed = ((hp->sw_lpa & (LPA_100HALF | LPA_100FULL)) ? SPEED_100 : SPEED_10); if (speed == SPEED_100) - cmd->duplex = + cmd->base.duplex = (hp->sw_lpa & (LPA_100FULL)) ? DUPLEX_FULL : DUPLEX_HALF; else - cmd->duplex = + cmd->base.duplex = (hp->sw_lpa & (LPA_10FULL)) ? DUPLEX_FULL : DUPLEX_HALF; } else { - cmd->autoneg = AUTONEG_DISABLE; + cmd->base.autoneg = AUTONEG_DISABLE; speed = (hp->sw_bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10; - cmd->duplex = + cmd->base.duplex = (hp->sw_bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } - ethtool_cmd_speed_set(cmd, speed); + cmd->base.speed = speed; + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + return 0; } -static int hme_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) +static int hme_set_link_ksettings(struct net_device *dev, + const struct ethtool_link_ksettings *cmd) { struct happy_meal *hp = netdev_priv(dev); /* Verify the settings we care about. */ - if (cmd->autoneg != AUTONEG_ENABLE && - cmd->autoneg != AUTONEG_DISABLE) + if (cmd->base.autoneg != AUTONEG_ENABLE && + cmd->base.autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->autoneg == AUTONEG_DISABLE && - ((ethtool_cmd_speed(cmd) != SPEED_100 && - ethtool_cmd_speed(cmd) != SPEED_10) || - (cmd->duplex != DUPLEX_HALF && - cmd->duplex != DUPLEX_FULL))) + if (cmd->base.autoneg == AUTONEG_DISABLE && + ((cmd->base.speed != SPEED_100 && + cmd->base.speed != SPEED_10) || + (cmd->base.duplex != DUPLEX_HALF && + cmd->base.duplex != DUPLEX_FULL))) return -EINVAL; /* Ok, do it to it. */ @@ -2537,10 +2543,10 @@ static u32 hme_get_link(struct net_device *dev) } static const struct ethtool_ops hme_ethtool_ops = { - .get_settings = hme_get_settings, - .set_settings = hme_set_settings, .get_drvinfo = hme_get_drvinfo, .get_link = hme_get_link, + .get_link_ksettings = hme_get_link_ksettings, + .set_link_ksettings = hme_set_link_ksettings, }; static int hme_version_printed; -- cgit From f441df6b9ff41e1af7289b69d5ce379053f900a5 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sun, 5 Mar 2017 23:21:06 +0100 Subject: net: toshiba: ps3_genic_net: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Tested-by: Geoff Levand Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/ps3_gelic_net.c | 51 ++++++++++++++++------------ 1 file changed, 29 insertions(+), 22 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c index 72013314bba8..fa6a06571187 100644 --- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c +++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c @@ -1206,61 +1206,68 @@ void gelic_net_get_drvinfo(struct net_device *netdev, strlcpy(info->version, DRV_VERSION, sizeof(info->version)); } -static int gelic_ether_get_settings(struct net_device *netdev, - struct ethtool_cmd *cmd) +static int gelic_ether_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) { struct gelic_card *card = netdev_card(netdev); + u32 supported, advertising; gelic_card_get_ether_port_status(card, 0); if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX) - cmd->duplex = DUPLEX_FULL; + cmd->base.duplex = DUPLEX_FULL; else - cmd->duplex = DUPLEX_HALF; + cmd->base.duplex = DUPLEX_HALF; switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) { case GELIC_LV1_ETHER_SPEED_10: - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; break; case GELIC_LV1_ETHER_SPEED_100: - ethtool_cmd_speed_set(cmd, SPEED_100); + cmd->base.speed = SPEED_100; break; case GELIC_LV1_ETHER_SPEED_1000: - ethtool_cmd_speed_set(cmd, SPEED_1000); + cmd->base.speed = SPEED_1000; break; default: pr_info("%s: speed unknown\n", __func__); - ethtool_cmd_speed_set(cmd, SPEED_10); + cmd->base.speed = SPEED_10; break; } - cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | + supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full; - cmd->advertising = cmd->supported; + advertising = supported; if (card->link_mode & GELIC_LV1_ETHER_AUTO_NEG) { - cmd->autoneg = AUTONEG_ENABLE; + cmd->base.autoneg = AUTONEG_ENABLE; } else { - cmd->autoneg = AUTONEG_DISABLE; - cmd->advertising &= ~ADVERTISED_Autoneg; + cmd->base.autoneg = AUTONEG_DISABLE; + advertising &= ~ADVERTISED_Autoneg; } - cmd->port = PORT_TP; + cmd->base.port = PORT_TP; + + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, + supported); + ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, + advertising); return 0; } -static int gelic_ether_set_settings(struct net_device *netdev, - struct ethtool_cmd *cmd) +static int +gelic_ether_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *cmd) { struct gelic_card *card = netdev_card(netdev); u64 mode; int ret; - if (cmd->autoneg == AUTONEG_ENABLE) { + if (cmd->base.autoneg == AUTONEG_ENABLE) { mode = GELIC_LV1_ETHER_AUTO_NEG; } else { - switch (cmd->speed) { + switch (cmd->base.speed) { case SPEED_10: mode = GELIC_LV1_ETHER_SPEED_10; break; @@ -1273,9 +1280,9 @@ static int gelic_ether_set_settings(struct net_device *netdev, default: return -EINVAL; } - if (cmd->duplex == DUPLEX_FULL) + if (cmd->base.duplex == DUPLEX_FULL) { mode |= GELIC_LV1_ETHER_FULL_DUPLEX; - else if (cmd->speed == SPEED_1000) { + } else if (cmd->base.speed == SPEED_1000) { pr_info("1000 half duplex is not supported.\n"); return -EINVAL; } @@ -1370,11 +1377,11 @@ done: static const struct ethtool_ops gelic_ether_ethtool_ops = { .get_drvinfo = gelic_net_get_drvinfo, - .get_settings = gelic_ether_get_settings, - .set_settings = gelic_ether_set_settings, .get_link = ethtool_op_get_link, .get_wol = gelic_net_get_wol, .set_wol = gelic_net_set_wol, + .get_link_ksettings = gelic_ether_get_link_ksettings, + .set_link_ksettings = gelic_ether_set_link_ksettings, }; /** -- cgit From 50ad480e4d64fde941fcac39db1ab29a83d86703 Mon Sep 17 00:00:00 2001 From: Philippe Reynes Date: Sun, 5 Mar 2017 23:46:00 +0100 Subject: net: toshiba: spider_net: use new api ethtool_{get|set}_link_ksettings The ethtool api {get|set}_settings is deprecated. We move this driver to new api {get|set}_link_ksettings. As I don't have the hardware, I'd be very pleased if someone may test this patch. Signed-off-by: Philippe Reynes Signed-off-by: David S. Miller --- drivers/net/ethernet/toshiba/spider_net_ethtool.c | 24 +++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/toshiba/spider_net_ethtool.c b/drivers/net/ethernet/toshiba/spider_net_ethtool.c index ffe519382e11..16bd036d0682 100644 --- a/drivers/net/ethernet/toshiba/spider_net_ethtool.c +++ b/drivers/net/ethernet/toshiba/spider_net_ethtool.c @@ -47,19 +47,23 @@ static struct { }; static int -spider_net_ethtool_get_settings(struct net_device *netdev, - struct ethtool_cmd *cmd) +spider_net_ethtool_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *cmd) { struct spider_net_card *card; card = netdev_priv(netdev); - cmd->supported = (SUPPORTED_1000baseT_Full | - SUPPORTED_FIBRE); - cmd->advertising = (ADVERTISED_1000baseT_Full | - ADVERTISED_FIBRE); - cmd->port = PORT_FIBRE; - ethtool_cmd_speed_set(cmd, card->phy.speed); - cmd->duplex = DUPLEX_FULL; + ethtool_link_ksettings_zero_link_mode(cmd, supported); + ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); + ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); + + ethtool_link_ksettings_zero_link_mode(cmd, advertising); + ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); + ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); + + cmd->base.port = PORT_FIBRE; + cmd->base.speed = card->phy.speed; + cmd->base.duplex = DUPLEX_FULL; return 0; } @@ -166,7 +170,6 @@ static void spider_net_get_strings(struct net_device *netdev, u32 stringset, } const struct ethtool_ops spider_net_ethtool_ops = { - .get_settings = spider_net_ethtool_get_settings, .get_drvinfo = spider_net_ethtool_get_drvinfo, .get_wol = spider_net_ethtool_get_wol, .get_msglevel = spider_net_ethtool_get_msglevel, @@ -177,5 +180,6 @@ const struct ethtool_ops spider_net_ethtool_ops = { .get_strings = spider_net_get_strings, .get_sset_count = spider_net_get_sset_count, .get_ethtool_stats = spider_net_get_ethtool_stats, + .get_link_ksettings = spider_net_ethtool_get_link_ksettings, }; -- cgit From b793f081674e363f71699b0b32fc9a1890e52db2 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Mon, 6 Mar 2017 14:34:27 +0100 Subject: net: ibm: emac: fix regression caused by emac_dt_phy_probe() Julian Margetson reported a panic on his SAM460EX with Kernel 4.11-rc1: | Unable to handle kernel paging request for data at address 0x00000014 | Oops: Kernel access of bad area, sig: 11 [#1] | PREEMPT | Canyonlands | Modules linked in: | CPU: 0 PID: 1 Comm: swapper Not tainted [...] | task: ea838000 task.stack: ea836000 | NIP: c0599f5c LR: c0599dd8 CTR: 00000000 | REGS: ea837c80 TRAP: 0300 Not tainted [...] | MSR: 00029000 | CR: 24371242 XER: 20000000 | DEAR: 00000014 ESR: 00000000 | GPR00: c0599ce8 ea837d30 ea838000 c0e52dcc c0d56ffb [...] | NIP [c0599f5c] emac_probe+0xfb4/0x1304 | LR [c0599dd8] emac_probe+0xe30/0x1304 | Call Trace: | [ea837d30] [c0599ce8] emac_probe+0xd40/0x1304 (unreliable) | [ea837d80] [c0533504] platform_drv_probe+0x48/0x90 | [ea837da0] [c0531c14] driver_probe_device+0x15c/0x2c4 | [ea837dd0] [c0531e04] __driver_attach+0x88/0xb0 | ---[ end trace ... ]--- The problem is caused by emac_dt_phy_probe() returing success (0) for existing device-trees configurations that do not specify a "phy-handle" property. This caused the code to skip the existing phy probe and setup. Which led to essential phy related data-structures being uninitialized. This patch also removes the unused variable in emac_dt_phy_connect(). Fixes: a577ca6badb5261d ("net: emac: add support for device-tree based PHY discovery and setup") Reported-by: Julian Margetson Signed-off-by: Christian Lamparter Signed-off-by: David S. Miller --- drivers/net/ethernet/ibm/emac/core.c | 25 +++++++++++++++++-------- 1 file changed, 17 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c index 275c2e2349ad..c44036d5761a 100644 --- a/drivers/net/ethernet/ibm/emac/core.c +++ b/drivers/net/ethernet/ibm/emac/core.c @@ -2589,8 +2589,6 @@ static int emac_dt_mdio_probe(struct emac_instance *dev) static int emac_dt_phy_connect(struct emac_instance *dev, struct device_node *phy_handle) { - int res; - dev->phy.def = devm_kzalloc(&dev->ofdev->dev, sizeof(*dev->phy.def), GFP_KERNEL); if (!dev->phy.def) @@ -2617,7 +2615,7 @@ static int emac_dt_phy_probe(struct emac_instance *dev) { struct device_node *np = dev->ofdev->dev.of_node; struct device_node *phy_handle; - int res = 0; + int res = 1; phy_handle = of_parse_phandle(np, "phy-handle", 0); @@ -2714,13 +2712,24 @@ static int emac_init_phy(struct emac_instance *dev) if (emac_has_feature(dev, EMAC_FTR_HAS_RGMII)) { int res = emac_dt_phy_probe(dev); - mutex_unlock(&emac_phy_map_lock); - if (!res) + switch (res) { + case 1: + /* No phy-handle property configured. + * Continue with the existing phy probe + * and setup code. + */ + break; + + case 0: + mutex_unlock(&emac_phy_map_lock); goto init_phy; - dev_err(&dev->ofdev->dev, "failed to attach dt phy (%d).\n", - res); - return res; + default: + mutex_unlock(&emac_phy_map_lock); + dev_err(&dev->ofdev->dev, "failed to attach dt phy (%d).\n", + res); + return res; + } } if (dev->phy_address != 0xffffffff) -- cgit From aac1561ad98e74f6ea43337f9b9714ab0b1f493e Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 8 Mar 2017 22:17:10 -0800 Subject: net: Revert ksettings conversions. Those were supposed to go into the net-next tree not the net tree. Oops... Signed-off-by: David S. Miller --- drivers/net/ethernet/smsc/smc911x.c | 51 ++++++------ drivers/net/ethernet/sun/cassini.c | 98 +++++++++++------------ drivers/net/ethernet/sun/niu.c | 37 ++++----- drivers/net/ethernet/sun/sungem.c | 98 ++++++++++------------- drivers/net/ethernet/sun/sunhme.c | 62 +++++++------- drivers/net/ethernet/toshiba/ps3_gelic_net.c | 51 +++++------- drivers/net/ethernet/toshiba/spider_net_ethtool.c | 24 +++--- 7 files changed, 188 insertions(+), 233 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 36307d34f641..4f19c6166182 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -1446,40 +1446,40 @@ static int smc911x_close(struct net_device *dev) * Ethtool support */ static int -smc911x_ethtool_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) +smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd) { struct smc911x_local *lp = netdev_priv(dev); int ret, status; unsigned long flags; - u32 supported; DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__); + cmd->maxtxpkt = 1; + cmd->maxrxpkt = 1; if (lp->phy_type != 0) { spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_get_link_ksettings(&lp->mii, cmd); + ret = mii_ethtool_gset(&lp->mii, cmd); spin_unlock_irqrestore(&lp->lock, flags); } else { - supported = SUPPORTED_10baseT_Half | + cmd->supported = SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_TP | SUPPORTED_AUI; if (lp->ctl_rspeed == 10) - cmd->base.speed = SPEED_10; + ethtool_cmd_speed_set(cmd, SPEED_10); else if (lp->ctl_rspeed == 100) - cmd->base.speed = SPEED_100; - - cmd->base.autoneg = AUTONEG_DISABLE; - cmd->base.port = 0; + ethtool_cmd_speed_set(cmd, SPEED_100); + + cmd->autoneg = AUTONEG_DISABLE; + if (lp->mii.phy_id==1) + cmd->transceiver = XCVR_INTERNAL; + else + cmd->transceiver = XCVR_EXTERNAL; + cmd->port = 0; SMC_GET_PHY_SPECIAL(lp, lp->mii.phy_id, status); - cmd->base.duplex = + cmd->duplex = (status & (PHY_SPECIAL_SPD_10FULL_ | PHY_SPECIAL_SPD_100FULL_)) ? DUPLEX_FULL : DUPLEX_HALF; - - ethtool_convert_legacy_u32_to_link_mode( - cmd->link_modes.supported, supported); - ret = 0; } @@ -1487,8 +1487,7 @@ smc911x_ethtool_get_link_ksettings(struct net_device *dev, } static int -smc911x_ethtool_set_link_ksettings(struct net_device *dev, - const struct ethtool_link_ksettings *cmd) +smc911x_ethtool_setsettings(struct net_device *dev, struct ethtool_cmd *cmd) { struct smc911x_local *lp = netdev_priv(dev); int ret; @@ -1496,18 +1495,16 @@ smc911x_ethtool_set_link_ksettings(struct net_device *dev, if (lp->phy_type != 0) { spin_lock_irqsave(&lp->lock, flags); - ret = mii_ethtool_set_link_ksettings(&lp->mii, cmd); + ret = mii_ethtool_sset(&lp->mii, cmd); spin_unlock_irqrestore(&lp->lock, flags); } else { - if (cmd->base.autoneg != AUTONEG_DISABLE || - cmd->base.speed != SPEED_10 || - (cmd->base.duplex != DUPLEX_HALF && - cmd->base.duplex != DUPLEX_FULL) || - (cmd->base.port != PORT_TP && - cmd->base.port != PORT_AUI)) + if (cmd->autoneg != AUTONEG_DISABLE || + cmd->speed != SPEED_10 || + (cmd->duplex != DUPLEX_HALF && cmd->duplex != DUPLEX_FULL) || + (cmd->port != PORT_TP && cmd->port != PORT_AUI)) return -EINVAL; - lp->ctl_rfduplx = cmd->base.duplex == DUPLEX_FULL; + lp->ctl_rfduplx = cmd->duplex == DUPLEX_FULL; ret = 0; } @@ -1689,6 +1686,8 @@ static int smc911x_ethtool_geteeprom_len(struct net_device *dev) } static const struct ethtool_ops smc911x_ethtool_ops = { + .get_settings = smc911x_ethtool_getsettings, + .set_settings = smc911x_ethtool_setsettings, .get_drvinfo = smc911x_ethtool_getdrvinfo, .get_msglevel = smc911x_ethtool_getmsglevel, .set_msglevel = smc911x_ethtool_setmsglevel, @@ -1699,8 +1698,6 @@ static const struct ethtool_ops smc911x_ethtool_ops = { .get_eeprom_len = smc911x_ethtool_geteeprom_len, .get_eeprom = smc911x_ethtool_geteeprom, .set_eeprom = smc911x_ethtool_seteeprom, - .get_link_ksettings = smc911x_ethtool_get_link_ksettings, - .set_link_ksettings = smc911x_ethtool_set_link_ksettings, }; /* diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c index 382993c1561c..0e8e89f17dbb 100644 --- a/drivers/net/ethernet/sun/cassini.c +++ b/drivers/net/ethernet/sun/cassini.c @@ -691,8 +691,7 @@ static void cas_mif_poll(struct cas *cp, const int enable) } /* Must be invoked under cp->lock */ -static void cas_begin_auto_negotiation(struct cas *cp, - const struct ethtool_link_ksettings *ep) +static void cas_begin_auto_negotiation(struct cas *cp, struct ethtool_cmd *ep) { u16 ctl; #if 1 @@ -705,16 +704,16 @@ static void cas_begin_auto_negotiation(struct cas *cp, if (!ep) goto start_aneg; lcntl = cp->link_cntl; - if (ep->base.autoneg == AUTONEG_ENABLE) { + if (ep->autoneg == AUTONEG_ENABLE) cp->link_cntl = BMCR_ANENABLE; - } else { - u32 speed = ep->base.speed; + else { + u32 speed = ethtool_cmd_speed(ep); cp->link_cntl = 0; if (speed == SPEED_100) cp->link_cntl |= BMCR_SPEED100; else if (speed == SPEED_1000) cp->link_cntl |= CAS_BMCR_SPEED1000; - if (ep->base.duplex == DUPLEX_FULL) + if (ep->duplex == DUPLEX_FULL) cp->link_cntl |= BMCR_FULLDPLX; } #if 1 @@ -4529,21 +4528,19 @@ static void cas_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info strlcpy(info->bus_info, pci_name(cp->pdev), sizeof(info->bus_info)); } -static int cas_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) +static int cas_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct cas *cp = netdev_priv(dev); u16 bmcr; int full_duplex, speed, pause; unsigned long flags; enum link_state linkstate = link_up; - u32 supported, advertising; - advertising = 0; - supported = SUPPORTED_Autoneg; + cmd->advertising = 0; + cmd->supported = SUPPORTED_Autoneg; if (cp->cas_flags & CAS_FLAG_1000MB_CAP) { - supported |= SUPPORTED_1000baseT_Full; - advertising |= ADVERTISED_1000baseT_Full; + cmd->supported |= SUPPORTED_1000baseT_Full; + cmd->advertising |= ADVERTISED_1000baseT_Full; } /* Record PHY settings if HW is on. */ @@ -4551,15 +4548,17 @@ static int cas_get_link_ksettings(struct net_device *dev, bmcr = 0; linkstate = cp->lstate; if (CAS_PHY_MII(cp->phy_type)) { - cmd->base.port = PORT_MII; - cmd->base.phy_address = cp->phy_addr; - advertising |= ADVERTISED_TP | ADVERTISED_MII | + cmd->port = PORT_MII; + cmd->transceiver = (cp->cas_flags & CAS_FLAG_SATURN) ? + XCVR_INTERNAL : XCVR_EXTERNAL; + cmd->phy_address = cp->phy_addr; + cmd->advertising |= ADVERTISED_TP | ADVERTISED_MII | ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full | ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full; - supported |= + cmd->supported |= (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | @@ -4575,10 +4574,11 @@ static int cas_get_link_ksettings(struct net_device *dev, } } else { - cmd->base.port = PORT_FIBRE; - cmd->base.phy_address = 0; - supported |= SUPPORTED_FIBRE; - advertising |= ADVERTISED_FIBRE; + cmd->port = PORT_FIBRE; + cmd->transceiver = XCVR_INTERNAL; + cmd->phy_address = 0; + cmd->supported |= SUPPORTED_FIBRE; + cmd->advertising |= ADVERTISED_FIBRE; if (cp->hw_running) { /* pcs uses the same bits as mii */ @@ -4590,20 +4590,21 @@ static int cas_get_link_ksettings(struct net_device *dev, spin_unlock_irqrestore(&cp->lock, flags); if (bmcr & BMCR_ANENABLE) { - advertising |= ADVERTISED_Autoneg; - cmd->base.autoneg = AUTONEG_ENABLE; - cmd->base.speed = ((speed == 10) ? + cmd->advertising |= ADVERTISED_Autoneg; + cmd->autoneg = AUTONEG_ENABLE; + ethtool_cmd_speed_set(cmd, ((speed == 10) ? SPEED_10 : ((speed == 1000) ? - SPEED_1000 : SPEED_100)); - cmd->base.duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; + SPEED_1000 : SPEED_100))); + cmd->duplex = full_duplex ? DUPLEX_FULL : DUPLEX_HALF; } else { - cmd->base.autoneg = AUTONEG_DISABLE; - cmd->base.speed = ((bmcr & CAS_BMCR_SPEED1000) ? + cmd->autoneg = AUTONEG_DISABLE; + ethtool_cmd_speed_set(cmd, ((bmcr & CAS_BMCR_SPEED1000) ? SPEED_1000 : ((bmcr & BMCR_SPEED100) ? - SPEED_100 : SPEED_10)); - cmd->base.duplex = (bmcr & BMCR_FULLDPLX) ? + SPEED_100 : SPEED_10))); + cmd->duplex = + (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } if (linkstate != link_up) { @@ -4618,46 +4619,39 @@ static int cas_get_link_ksettings(struct net_device *dev, * settings that we configured. */ if (cp->link_cntl & BMCR_ANENABLE) { - cmd->base.speed = 0; - cmd->base.duplex = 0xff; + ethtool_cmd_speed_set(cmd, 0); + cmd->duplex = 0xff; } else { - cmd->base.speed = SPEED_10; + ethtool_cmd_speed_set(cmd, SPEED_10); if (cp->link_cntl & BMCR_SPEED100) { - cmd->base.speed = SPEED_100; + ethtool_cmd_speed_set(cmd, SPEED_100); } else if (cp->link_cntl & CAS_BMCR_SPEED1000) { - cmd->base.speed = SPEED_1000; + ethtool_cmd_speed_set(cmd, SPEED_1000); } - cmd->base.duplex = (cp->link_cntl & BMCR_FULLDPLX) ? + cmd->duplex = (cp->link_cntl & BMCR_FULLDPLX)? DUPLEX_FULL : DUPLEX_HALF; } } - - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - supported); - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, - advertising); - return 0; } -static int cas_set_link_ksettings(struct net_device *dev, - const struct ethtool_link_ksettings *cmd) +static int cas_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct cas *cp = netdev_priv(dev); unsigned long flags; - u32 speed = cmd->base.speed; + u32 speed = ethtool_cmd_speed(cmd); /* Verify the settings we care about. */ - if (cmd->base.autoneg != AUTONEG_ENABLE && - cmd->base.autoneg != AUTONEG_DISABLE) + if (cmd->autoneg != AUTONEG_ENABLE && + cmd->autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->base.autoneg == AUTONEG_DISABLE && + if (cmd->autoneg == AUTONEG_DISABLE && ((speed != SPEED_1000 && speed != SPEED_100 && speed != SPEED_10) || - (cmd->base.duplex != DUPLEX_HALF && - cmd->base.duplex != DUPLEX_FULL))) + (cmd->duplex != DUPLEX_HALF && + cmd->duplex != DUPLEX_FULL))) return -EINVAL; /* Apply settings and restart link process. */ @@ -4759,6 +4753,8 @@ static void cas_get_ethtool_stats(struct net_device *dev, static const struct ethtool_ops cas_ethtool_ops = { .get_drvinfo = cas_get_drvinfo, + .get_settings = cas_get_settings, + .set_settings = cas_set_settings, .nway_reset = cas_nway_reset, .get_link = cas_get_link, .get_msglevel = cas_get_msglevel, @@ -4768,8 +4764,6 @@ static const struct ethtool_ops cas_ethtool_ops = { .get_sset_count = cas_get_sset_count, .get_strings = cas_get_strings, .get_ethtool_stats = cas_get_ethtool_stats, - .get_link_ksettings = cas_get_link_ksettings, - .set_link_ksettings = cas_set_link_ksettings, }; static int cas_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c index 2dcca249eb9c..57978056b336 100644 --- a/drivers/net/ethernet/sun/niu.c +++ b/drivers/net/ethernet/sun/niu.c @@ -6813,8 +6813,7 @@ static void niu_get_drvinfo(struct net_device *dev, sizeof(info->bus_info)); } -static int niu_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) +static int niu_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct niu *np = netdev_priv(dev); struct niu_link_config *lp; @@ -6822,30 +6821,28 @@ static int niu_get_link_ksettings(struct net_device *dev, lp = &np->link_config; memset(cmd, 0, sizeof(*cmd)); - cmd->base.phy_address = np->phy_addr; - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - lp->supported); - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, - lp->active_advertising); - cmd->base.autoneg = lp->active_autoneg; - cmd->base.speed = lp->active_speed; - cmd->base.duplex = lp->active_duplex; - cmd->base.port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; + cmd->phy_address = np->phy_addr; + cmd->supported = lp->supported; + cmd->advertising = lp->active_advertising; + cmd->autoneg = lp->active_autoneg; + ethtool_cmd_speed_set(cmd, lp->active_speed); + cmd->duplex = lp->active_duplex; + cmd->port = (np->flags & NIU_FLAGS_FIBER) ? PORT_FIBRE : PORT_TP; + cmd->transceiver = (np->flags & NIU_FLAGS_XCVR_SERDES) ? + XCVR_EXTERNAL : XCVR_INTERNAL; return 0; } -static int niu_set_link_ksettings(struct net_device *dev, - const struct ethtool_link_ksettings *cmd) +static int niu_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct niu *np = netdev_priv(dev); struct niu_link_config *lp = &np->link_config; - ethtool_convert_link_mode_to_legacy_u32(&lp->advertising, - cmd->link_modes.advertising); - lp->speed = cmd->base.speed; - lp->duplex = cmd->base.duplex; - lp->autoneg = cmd->base.autoneg; + lp->advertising = cmd->advertising; + lp->speed = ethtool_cmd_speed(cmd); + lp->duplex = cmd->duplex; + lp->autoneg = cmd->autoneg; return niu_init_link(np); } @@ -7905,14 +7902,14 @@ static const struct ethtool_ops niu_ethtool_ops = { .nway_reset = niu_nway_reset, .get_eeprom_len = niu_get_eeprom_len, .get_eeprom = niu_get_eeprom, + .get_settings = niu_get_settings, + .set_settings = niu_set_settings, .get_strings = niu_get_strings, .get_sset_count = niu_get_sset_count, .get_ethtool_stats = niu_get_ethtool_stats, .set_phys_id = niu_set_phys_id, .get_rxnfc = niu_get_nfc, .set_rxnfc = niu_set_nfc, - .get_link_ksettings = niu_get_link_ksettings, - .set_link_ksettings = niu_set_link_ksettings, }; static int niu_ldg_assign_ldn(struct niu *np, struct niu_parent *parent, diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c index dbfca0466760..5c5952e782cd 100644 --- a/drivers/net/ethernet/sun/sungem.c +++ b/drivers/net/ethernet/sun/sungem.c @@ -1250,17 +1250,12 @@ static void gem_stop_dma(struct gem *gp) // XXX dbl check what that function should do when called on PCS PHY -static void gem_begin_auto_negotiation(struct gem *gp, - const struct ethtool_link_ksettings *ep) +static void gem_begin_auto_negotiation(struct gem *gp, struct ethtool_cmd *ep) { u32 advertise, features; int autoneg; int speed; int duplex; - u32 advertising; - - ethtool_convert_link_mode_to_legacy_u32(&advertising, - ep->link_modes.advertising); if (gp->phy_type != phy_mii_mdio0 && gp->phy_type != phy_mii_mdio1) @@ -1283,13 +1278,13 @@ static void gem_begin_auto_negotiation(struct gem *gp, /* Setup link parameters */ if (!ep) goto start_aneg; - if (ep->base.autoneg == AUTONEG_ENABLE) { - advertise = advertising; + if (ep->autoneg == AUTONEG_ENABLE) { + advertise = ep->advertising; autoneg = 1; } else { autoneg = 0; - speed = ep->base.speed; - duplex = ep->base.duplex; + speed = ethtool_cmd_speed(ep); + duplex = ep->duplex; } start_aneg: @@ -2520,96 +2515,85 @@ static void gem_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *info strlcpy(info->bus_info, pci_name(gp->pdev), sizeof(info->bus_info)); } -static int gem_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) +static int gem_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct gem *gp = netdev_priv(dev); - u32 supported, advertising; if (gp->phy_type == phy_mii_mdio0 || gp->phy_type == phy_mii_mdio1) { if (gp->phy_mii.def) - supported = gp->phy_mii.def->features; + cmd->supported = gp->phy_mii.def->features; else - supported = (SUPPORTED_10baseT_Half | + cmd->supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full); /* XXX hardcoded stuff for now */ - cmd->base.port = PORT_MII; - cmd->base.phy_address = 0; /* XXX fixed PHYAD */ + cmd->port = PORT_MII; + cmd->transceiver = XCVR_EXTERNAL; + cmd->phy_address = 0; /* XXX fixed PHYAD */ /* Return current PHY settings */ - cmd->base.autoneg = gp->want_autoneg; - cmd->base.speed = gp->phy_mii.speed; - cmd->base.duplex = gp->phy_mii.duplex; - advertising = gp->phy_mii.advertising; + cmd->autoneg = gp->want_autoneg; + ethtool_cmd_speed_set(cmd, gp->phy_mii.speed); + cmd->duplex = gp->phy_mii.duplex; + cmd->advertising = gp->phy_mii.advertising; /* If we started with a forced mode, we don't have a default * advertise set, we need to return something sensible so * userland can re-enable autoneg properly. */ - if (advertising == 0) - advertising = supported; + if (cmd->advertising == 0) + cmd->advertising = cmd->supported; } else { // XXX PCS ? - supported = + cmd->supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg); - advertising = supported; - cmd->base.speed = 0; - cmd->base.duplex = 0; - cmd->base.port = 0; - cmd->base.phy_address = 0; - cmd->base.autoneg = 0; + cmd->advertising = cmd->supported; + ethtool_cmd_speed_set(cmd, 0); + cmd->duplex = cmd->port = cmd->phy_address = + cmd->transceiver = cmd->autoneg = 0; /* serdes means usually a Fibre connector, with most fixed */ if (gp->phy_type == phy_serdes) { - cmd->base.port = PORT_FIBRE; - supported = (SUPPORTED_1000baseT_Half | + cmd->port = PORT_FIBRE; + cmd->supported = (SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full | SUPPORTED_FIBRE | SUPPORTED_Autoneg | SUPPORTED_Pause | SUPPORTED_Asym_Pause); - advertising = supported; + cmd->advertising = cmd->supported; + cmd->transceiver = XCVR_INTERNAL; if (gp->lstate == link_up) - cmd->base.speed = SPEED_1000; - cmd->base.duplex = DUPLEX_FULL; - cmd->base.autoneg = 1; + ethtool_cmd_speed_set(cmd, SPEED_1000); + cmd->duplex = DUPLEX_FULL; + cmd->autoneg = 1; } } - - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - supported); - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, - advertising); + cmd->maxtxpkt = cmd->maxrxpkt = 0; return 0; } -static int gem_set_link_ksettings(struct net_device *dev, - const struct ethtool_link_ksettings *cmd) +static int gem_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct gem *gp = netdev_priv(dev); - u32 speed = cmd->base.speed; - u32 advertising; - - ethtool_convert_link_mode_to_legacy_u32(&advertising, - cmd->link_modes.advertising); + u32 speed = ethtool_cmd_speed(cmd); /* Verify the settings we care about. */ - if (cmd->base.autoneg != AUTONEG_ENABLE && - cmd->base.autoneg != AUTONEG_DISABLE) + if (cmd->autoneg != AUTONEG_ENABLE && + cmd->autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->base.autoneg == AUTONEG_ENABLE && - advertising == 0) + if (cmd->autoneg == AUTONEG_ENABLE && + cmd->advertising == 0) return -EINVAL; - if (cmd->base.autoneg == AUTONEG_DISABLE && + if (cmd->autoneg == AUTONEG_DISABLE && ((speed != SPEED_1000 && speed != SPEED_100 && speed != SPEED_10) || - (cmd->base.duplex != DUPLEX_HALF && - cmd->base.duplex != DUPLEX_FULL))) + (cmd->duplex != DUPLEX_HALF && + cmd->duplex != DUPLEX_FULL))) return -EINVAL; /* Apply settings and restart link process. */ @@ -2682,13 +2666,13 @@ static int gem_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) static const struct ethtool_ops gem_ethtool_ops = { .get_drvinfo = gem_get_drvinfo, .get_link = ethtool_op_get_link, + .get_settings = gem_get_settings, + .set_settings = gem_set_settings, .nway_reset = gem_nway_reset, .get_msglevel = gem_get_msglevel, .set_msglevel = gem_set_msglevel, .get_wol = gem_get_wol, .set_wol = gem_set_wol, - .get_link_ksettings = gem_get_link_ksettings, - .set_link_ksettings = gem_set_link_ksettings, }; static int gem_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c index 53ff66ef53ac..72ff05cd3ed8 100644 --- a/drivers/net/ethernet/sun/sunhme.c +++ b/drivers/net/ethernet/sun/sunhme.c @@ -1294,10 +1294,9 @@ static void happy_meal_init_rings(struct happy_meal *hp) } /* hp->happy_lock must be held */ -static void -happy_meal_begin_auto_negotiation(struct happy_meal *hp, - void __iomem *tregs, - const struct ethtool_link_ksettings *ep) +static void happy_meal_begin_auto_negotiation(struct happy_meal *hp, + void __iomem *tregs, + struct ethtool_cmd *ep) { int timeout; @@ -1310,7 +1309,7 @@ happy_meal_begin_auto_negotiation(struct happy_meal *hp, /* XXX Check BMSR_ANEGCAPABLE, should not be necessary though. */ hp->sw_advertise = happy_meal_tcvr_read(hp, tregs, MII_ADVERTISE); - if (!ep || ep->base.autoneg == AUTONEG_ENABLE) { + if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { /* Advertise everything we can support. */ if (hp->sw_bmsr & BMSR_10HALF) hp->sw_advertise |= (ADVERTISE_10HALF); @@ -1385,14 +1384,14 @@ force_link: /* Disable auto-negotiation in BMCR, enable the duplex and * speed setting, init the timer state machine, and fire it off. */ - if (!ep || ep->base.autoneg == AUTONEG_ENABLE) { + if (ep == NULL || ep->autoneg == AUTONEG_ENABLE) { hp->sw_bmcr = BMCR_SPEED100; } else { - if (ep->base.speed == SPEED_100) + if (ethtool_cmd_speed(ep) == SPEED_100) hp->sw_bmcr = BMCR_SPEED100; else hp->sw_bmcr = 0; - if (ep->base.duplex == DUPLEX_FULL) + if (ep->duplex == DUPLEX_FULL) hp->sw_bmcr |= BMCR_FULLDPLX; } happy_meal_tcvr_write(hp, tregs, MII_BMCR, hp->sw_bmcr); @@ -2435,21 +2434,20 @@ static void happy_meal_set_multicast(struct net_device *dev) } /* Ethtool support... */ -static int hme_get_link_ksettings(struct net_device *dev, - struct ethtool_link_ksettings *cmd) +static int hme_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct happy_meal *hp = netdev_priv(dev); u32 speed; - u32 supported; - supported = + cmd->supported = (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII); /* XXX hardcoded stuff for now */ - cmd->base.port = PORT_TP; /* XXX no MII support */ - cmd->base.phy_address = 0; /* XXX fixed PHYAD */ + cmd->port = PORT_TP; /* XXX no MII support */ + cmd->transceiver = XCVR_INTERNAL; /* XXX no external xcvr support */ + cmd->phy_address = 0; /* XXX fixed PHYAD */ /* Record PHY settings. */ spin_lock_irq(&hp->happy_lock); @@ -2458,45 +2456,41 @@ static int hme_get_link_ksettings(struct net_device *dev, spin_unlock_irq(&hp->happy_lock); if (hp->sw_bmcr & BMCR_ANENABLE) { - cmd->base.autoneg = AUTONEG_ENABLE; + cmd->autoneg = AUTONEG_ENABLE; speed = ((hp->sw_lpa & (LPA_100HALF | LPA_100FULL)) ? SPEED_100 : SPEED_10); if (speed == SPEED_100) - cmd->base.duplex = + cmd->duplex = (hp->sw_lpa & (LPA_100FULL)) ? DUPLEX_FULL : DUPLEX_HALF; else - cmd->base.duplex = + cmd->duplex = (hp->sw_lpa & (LPA_10FULL)) ? DUPLEX_FULL : DUPLEX_HALF; } else { - cmd->base.autoneg = AUTONEG_DISABLE; + cmd->autoneg = AUTONEG_DISABLE; speed = (hp->sw_bmcr & BMCR_SPEED100) ? SPEED_100 : SPEED_10; - cmd->base.duplex = + cmd->duplex = (hp->sw_bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF; } - cmd->base.speed = speed; - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - supported); - + ethtool_cmd_speed_set(cmd, speed); return 0; } -static int hme_set_link_ksettings(struct net_device *dev, - const struct ethtool_link_ksettings *cmd) +static int hme_set_settings(struct net_device *dev, struct ethtool_cmd *cmd) { struct happy_meal *hp = netdev_priv(dev); /* Verify the settings we care about. */ - if (cmd->base.autoneg != AUTONEG_ENABLE && - cmd->base.autoneg != AUTONEG_DISABLE) + if (cmd->autoneg != AUTONEG_ENABLE && + cmd->autoneg != AUTONEG_DISABLE) return -EINVAL; - if (cmd->base.autoneg == AUTONEG_DISABLE && - ((cmd->base.speed != SPEED_100 && - cmd->base.speed != SPEED_10) || - (cmd->base.duplex != DUPLEX_HALF && - cmd->base.duplex != DUPLEX_FULL))) + if (cmd->autoneg == AUTONEG_DISABLE && + ((ethtool_cmd_speed(cmd) != SPEED_100 && + ethtool_cmd_speed(cmd) != SPEED_10) || + (cmd->duplex != DUPLEX_HALF && + cmd->duplex != DUPLEX_FULL))) return -EINVAL; /* Ok, do it to it. */ @@ -2543,10 +2537,10 @@ static u32 hme_get_link(struct net_device *dev) } static const struct ethtool_ops hme_ethtool_ops = { + .get_settings = hme_get_settings, + .set_settings = hme_set_settings, .get_drvinfo = hme_get_drvinfo, .get_link = hme_get_link, - .get_link_ksettings = hme_get_link_ksettings, - .set_link_ksettings = hme_set_link_ksettings, }; static int hme_version_printed; diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.c b/drivers/net/ethernet/toshiba/ps3_gelic_net.c index fa6a06571187..72013314bba8 100644 --- a/drivers/net/ethernet/toshiba/ps3_gelic_net.c +++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.c @@ -1206,68 +1206,61 @@ void gelic_net_get_drvinfo(struct net_device *netdev, strlcpy(info->version, DRV_VERSION, sizeof(info->version)); } -static int gelic_ether_get_link_ksettings(struct net_device *netdev, - struct ethtool_link_ksettings *cmd) +static int gelic_ether_get_settings(struct net_device *netdev, + struct ethtool_cmd *cmd) { struct gelic_card *card = netdev_card(netdev); - u32 supported, advertising; gelic_card_get_ether_port_status(card, 0); if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX) - cmd->base.duplex = DUPLEX_FULL; + cmd->duplex = DUPLEX_FULL; else - cmd->base.duplex = DUPLEX_HALF; + cmd->duplex = DUPLEX_HALF; switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) { case GELIC_LV1_ETHER_SPEED_10: - cmd->base.speed = SPEED_10; + ethtool_cmd_speed_set(cmd, SPEED_10); break; case GELIC_LV1_ETHER_SPEED_100: - cmd->base.speed = SPEED_100; + ethtool_cmd_speed_set(cmd, SPEED_100); break; case GELIC_LV1_ETHER_SPEED_1000: - cmd->base.speed = SPEED_1000; + ethtool_cmd_speed_set(cmd, SPEED_1000); break; default: pr_info("%s: speed unknown\n", __func__); - cmd->base.speed = SPEED_10; + ethtool_cmd_speed_set(cmd, SPEED_10); break; } - supported = SUPPORTED_TP | SUPPORTED_Autoneg | + cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | SUPPORTED_1000baseT_Full; - advertising = supported; + cmd->advertising = cmd->supported; if (card->link_mode & GELIC_LV1_ETHER_AUTO_NEG) { - cmd->base.autoneg = AUTONEG_ENABLE; + cmd->autoneg = AUTONEG_ENABLE; } else { - cmd->base.autoneg = AUTONEG_DISABLE; - advertising &= ~ADVERTISED_Autoneg; + cmd->autoneg = AUTONEG_DISABLE; + cmd->advertising &= ~ADVERTISED_Autoneg; } - cmd->base.port = PORT_TP; - - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.supported, - supported); - ethtool_convert_legacy_u32_to_link_mode(cmd->link_modes.advertising, - advertising); + cmd->port = PORT_TP; return 0; } -static int -gelic_ether_set_link_ksettings(struct net_device *netdev, - const struct ethtool_link_ksettings *cmd) +static int gelic_ether_set_settings(struct net_device *netdev, + struct ethtool_cmd *cmd) { struct gelic_card *card = netdev_card(netdev); u64 mode; int ret; - if (cmd->base.autoneg == AUTONEG_ENABLE) { + if (cmd->autoneg == AUTONEG_ENABLE) { mode = GELIC_LV1_ETHER_AUTO_NEG; } else { - switch (cmd->base.speed) { + switch (cmd->speed) { case SPEED_10: mode = GELIC_LV1_ETHER_SPEED_10; break; @@ -1280,9 +1273,9 @@ gelic_ether_set_link_ksettings(struct net_device *netdev, default: return -EINVAL; } - if (cmd->base.duplex == DUPLEX_FULL) { + if (cmd->duplex == DUPLEX_FULL) mode |= GELIC_LV1_ETHER_FULL_DUPLEX; - } else if (cmd->base.speed == SPEED_1000) { + else if (cmd->speed == SPEED_1000) { pr_info("1000 half duplex is not supported.\n"); return -EINVAL; } @@ -1377,11 +1370,11 @@ done: static const struct ethtool_ops gelic_ether_ethtool_ops = { .get_drvinfo = gelic_net_get_drvinfo, + .get_settings = gelic_ether_get_settings, + .set_settings = gelic_ether_set_settings, .get_link = ethtool_op_get_link, .get_wol = gelic_net_get_wol, .set_wol = gelic_net_set_wol, - .get_link_ksettings = gelic_ether_get_link_ksettings, - .set_link_ksettings = gelic_ether_set_link_ksettings, }; /** diff --git a/drivers/net/ethernet/toshiba/spider_net_ethtool.c b/drivers/net/ethernet/toshiba/spider_net_ethtool.c index 16bd036d0682..ffe519382e11 100644 --- a/drivers/net/ethernet/toshiba/spider_net_ethtool.c +++ b/drivers/net/ethernet/toshiba/spider_net_ethtool.c @@ -47,23 +47,19 @@ static struct { }; static int -spider_net_ethtool_get_link_ksettings(struct net_device *netdev, - struct ethtool_link_ksettings *cmd) +spider_net_ethtool_get_settings(struct net_device *netdev, + struct ethtool_cmd *cmd) { struct spider_net_card *card; card = netdev_priv(netdev); - ethtool_link_ksettings_zero_link_mode(cmd, supported); - ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); - ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); - - ethtool_link_ksettings_zero_link_mode(cmd, advertising); - ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); - ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE); - - cmd->base.port = PORT_FIBRE; - cmd->base.speed = card->phy.speed; - cmd->base.duplex = DUPLEX_FULL; + cmd->supported = (SUPPORTED_1000baseT_Full | + SUPPORTED_FIBRE); + cmd->advertising = (ADVERTISED_1000baseT_Full | + ADVERTISED_FIBRE); + cmd->port = PORT_FIBRE; + ethtool_cmd_speed_set(cmd, card->phy.speed); + cmd->duplex = DUPLEX_FULL; return 0; } @@ -170,6 +166,7 @@ static void spider_net_get_strings(struct net_device *netdev, u32 stringset, } const struct ethtool_ops spider_net_ethtool_ops = { + .get_settings = spider_net_ethtool_get_settings, .get_drvinfo = spider_net_ethtool_get_drvinfo, .get_wol = spider_net_ethtool_get_wol, .get_msglevel = spider_net_ethtool_get_msglevel, @@ -180,6 +177,5 @@ const struct ethtool_ops spider_net_ethtool_ops = { .get_strings = spider_net_get_strings, .get_sset_count = spider_net_get_sset_count, .get_ethtool_stats = spider_net_get_ethtool_stats, - .get_link_ksettings = spider_net_ethtool_get_link_ksettings, }; -- cgit From 3331aa378e9bcbd0d16de9034b0c20f4050e26b4 Mon Sep 17 00:00:00 2001 From: Jarod Wilson Date: Mon, 6 Mar 2017 08:48:58 -0500 Subject: team: use ETH_MAX_MTU as max mtu This restores the ability to set a team device's mtu to anything higher than 1500. Similar to the reported issue with bonding, the team driver calls ether_setup(), which sets an initial max_mtu of 1500, while the underlying hardware can handle something much larger. Just set it to ETH_MAX_MTU to support all possible values, and the limitations of the underlying devices will prevent setting anything too large. Fixes: 91572088e3fd ("net: use core MTU range checking in core net infra") CC: Cong Wang CC: Jiri Pirko CC: netdev@vger.kernel.org Signed-off-by: Jarod Wilson Signed-off-by: David S. Miller --- drivers/net/team/team.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index 4a24b5d15f5a..1b52520715ae 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2072,6 +2072,7 @@ static int team_dev_type_check_change(struct net_device *dev, static void team_setup(struct net_device *dev) { ether_setup(dev); + dev->max_mtu = ETH_MAX_MTU; dev->netdev_ops = &team_netdev_ops; dev->ethtool_ops = &team_ethtool_ops; -- cgit From f7887d40e541f74402df0684a1463c0a0bb68c68 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 6 Mar 2017 08:53:04 -0800 Subject: vrf: Fix use-after-free in vrf_xmit KASAN detected a use-after-free: [ 269.467067] BUG: KASAN: use-after-free in vrf_xmit+0x7f1/0x827 [vrf] at addr ffff8800350a21c0 [ 269.467067] Read of size 4 by task ssh/1879 [ 269.467067] CPU: 1 PID: 1879 Comm: ssh Not tainted 4.10.0+ #249 [ 269.467067] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.7.5-20140531_083030-gandalf 04/01/2014 [ 269.467067] Call Trace: [ 269.467067] dump_stack+0x81/0xb6 [ 269.467067] kasan_object_err+0x21/0x78 [ 269.467067] kasan_report+0x2f7/0x450 [ 269.467067] ? vrf_xmit+0x7f1/0x827 [vrf] [ 269.467067] ? ip_output+0xa4/0xdb [ 269.467067] __asan_load4+0x6b/0x6d [ 269.467067] vrf_xmit+0x7f1/0x827 [vrf] ... Which corresponds to the skb access after xmit handling. Fix by saving skb->len and using the saved value to update stats. Fixes: 193125dbd8eb2 ("net: Introduce VRF device driver") Signed-off-by: David Ahern Signed-off-by: David S. Miller --- drivers/net/vrf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/vrf.c b/drivers/net/vrf.c index 22379da63400..fea687f35b5a 100644 --- a/drivers/net/vrf.c +++ b/drivers/net/vrf.c @@ -340,6 +340,7 @@ static netdev_tx_t is_ip_tx_frame(struct sk_buff *skb, struct net_device *dev) static netdev_tx_t vrf_xmit(struct sk_buff *skb, struct net_device *dev) { + int len = skb->len; netdev_tx_t ret = is_ip_tx_frame(skb, dev); if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) { @@ -347,7 +348,7 @@ static netdev_tx_t vrf_xmit(struct sk_buff *skb, struct net_device *dev) u64_stats_update_begin(&dstats->syncp); dstats->tx_pkts++; - dstats->tx_bytes += skb->len; + dstats->tx_bytes += len; u64_stats_update_end(&dstats->syncp); } else { this_cpu_inc(dev->dstats->tx_drps); -- cgit From 713c43b315fc160dc4ff3da0020ebe09b8a65587 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Mon, 6 Mar 2017 21:22:09 +0100 Subject: mlxsw: spectrum_flower: Remove bogus warns in mlxsw_sp_flower_destroy This warnings may be hit even in case they should not - in case user puts a TC-flower rule which failed to be offloaded. So just remove them. Reported-by: Petr Machata Reported-by: Ido Schimmel Fixes: commit 7aa0f5aa9030 ("mlxsw: spectrum: Implement TC flower offload") Signed-off-by: Jiri Pirko Acked-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c index 22ab42925377..ae6cccc666e4 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flower.c @@ -303,11 +303,11 @@ void mlxsw_sp_flower_destroy(struct mlxsw_sp_port *mlxsw_sp_port, bool ingress, ruleset = mlxsw_sp_acl_ruleset_get(mlxsw_sp, mlxsw_sp_port->dev, ingress, MLXSW_SP_ACL_PROFILE_FLOWER); - if (WARN_ON(IS_ERR(ruleset))) + if (IS_ERR(ruleset)) return; rule = mlxsw_sp_acl_rule_lookup(mlxsw_sp, ruleset, f->cookie); - if (!WARN_ON(!rule)) { + if (rule) { mlxsw_sp_acl_rule_del(mlxsw_sp, rule); mlxsw_sp_acl_rule_destroy(mlxsw_sp, rule); } -- cgit From 89cf83d4e065ff9fbd2ddc674489c8058eeca758 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 16 Feb 2017 12:54:41 +0000 Subject: drm/i915: Squelch any ktime/jiffie rounding errors for wait-ioctl We wait upon jiffies, but report the time elapsed using a high-resolution timer. This discrepancy can lead to us timing out the wait prior to us reporting the elapsed time as complete. This restores the squelching lost in commit e95433c73a11 ("drm/i915: Rearrange i915_wait_request() accounting with callers"). Fixes: e95433c73a11 ("drm/i915: Rearrange i915_wait_request() accounting with callers") Signed-off-by: Chris Wilson Cc: Matthew Auld Cc: Joonas Lahtinen Cc: # v4.10-rc1+ Cc: stable@vger.kernel.org Link: http://patchwork.freedesktop.org/patch/msgid/20170216125441.30923-1-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen (cherry picked from commit c1d2061b28c2aa25ec39b60d9c248e6beebd7315) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_gem.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 6908123162d1..c45af09555dc 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -3029,6 +3029,16 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) args->timeout_ns -= ktime_to_ns(ktime_sub(ktime_get(), start)); if (args->timeout_ns < 0) args->timeout_ns = 0; + + /* + * Apparently ktime isn't accurate enough and occasionally has a + * bit of mismatch in the jiffies<->nsecs<->ktime loop. So patch + * things up to make the test happy. We allow up to 1 jiffy. + * + * This is a regression from the timespec->ktime conversion. + */ + if (ret == -ETIME && !nsecs_to_jiffies(args->timeout_ns)) + args->timeout_ns = 0; } i915_gem_object_put(obj); -- cgit From 1d972d6021a1388021df51a58248e68372ce2b5d Mon Sep 17 00:00:00 2001 From: Ander Conselvan de Oliveira Date: Thu, 23 Feb 2017 09:15:57 +0200 Subject: drm/i915/glk: Fix watermark computations for third sprite plane MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Geminilake has a third sprite plane (or fourth universal plane) that is independent from the cursor. Make sure that for_each_plane_id_on_crtc() is aware of that extra plane so that the watermark code takes it into account. Fixes: e9c9882556fc ("drm/i915/glk: Configure number of sprite planes properly") Cc: Ander Conselvan de Oliveira Cc: Rodrigo Vivi Cc: Daniel Vetter Cc: Jani Nikula Cc: intel-gfx@lists.freedesktop.org Cc: Signed-off-by: Ander Conselvan de Oliveira Reviewed-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170223071600.14356-2-ander.conselvan.de.oliveira@intel.com (cherry picked from commit 19c3164db457e0fc65d4501fd354506228576241) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_drv.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 0a4b42d31391..7febe6eecf72 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -293,6 +293,7 @@ enum plane_id { PLANE_PRIMARY, PLANE_SPRITE0, PLANE_SPRITE1, + PLANE_SPRITE2, PLANE_CURSOR, I915_MAX_PLANES, }; -- cgit From b717a0392530ae8da0da041abe5c3a6098b55660 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Fri, 24 Feb 2017 11:43:06 +0000 Subject: drm/i915/fbdev: Stop repeating tile configuration on stagnation If we cease making progress in finding matching outputs for a tiled configuration, stop looping over the remaining unconfigured outputs. v2: Use conn_seq (instead of pass) to only apply tile configuration on first pass. Fixes: b0ee9e7fa5b4 ("drm/fb: add support for tiled monitor configurations. (v2)") Signed-off-by: Chris Wilson Cc: Tomasz Lis Cc: Dave Airlie Cc: Daniel Vetter Cc: Jani Nikula Cc: Sean Paul Cc: # v3.19+ Reviewed-by: Tomasz Lis Link: http://patchwork.freedesktop.org/patch/msgid/20170224114306.4400-1-chris@chris-wilson.co.uk (cherry picked from commit 754a76591b12c88f57ad8b4ca533a5c9566a1922) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_fbdev.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index 1b8ba2e77539..2d449fb5d1d2 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -357,14 +357,13 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, bool *enabled, int width, int height) { struct drm_i915_private *dev_priv = to_i915(fb_helper->dev); - unsigned long conn_configured, mask; + unsigned long conn_configured, conn_seq, mask; unsigned int count = min(fb_helper->connector_count, BITS_PER_LONG); int i, j; bool *save_enabled; bool fallback = true; int num_connectors_enabled = 0; int num_connectors_detected = 0; - int pass = 0; save_enabled = kcalloc(count, sizeof(bool), GFP_KERNEL); if (!save_enabled) @@ -374,6 +373,7 @@ static bool intel_fb_initial_config(struct drm_fb_helper *fb_helper, mask = BIT(count) - 1; conn_configured = 0; retry: + conn_seq = conn_configured; for (i = 0; i < count; i++) { struct drm_fb_helper_connector *fb_conn; struct drm_connector *connector; @@ -387,7 +387,7 @@ retry: if (conn_configured & BIT(i)) continue; - if (pass == 0 && !connector->has_tile) + if (conn_seq == 0 && !connector->has_tile) continue; if (connector->status == connector_status_connected) @@ -498,10 +498,8 @@ retry: conn_configured |= BIT(i); } - if ((conn_configured & mask) != mask) { - pass++; + if ((conn_configured & mask) != mask && conn_configured != conn_seq) goto retry; - } /* * If the BIOS didn't enable everything it could, fall back to have the -- cgit From 8c9923707f30ff56d9fd242053594b18f38d8036 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 27 Feb 2017 12:26:54 +0000 Subject: drm/i915: Remove the vma from the drm_mm if binding fails As we track whether a vma has been inserted into the drm_mm using the vma->flags, if we fail to bind the vma into the GTT we do not update those bits and will attempt to reinsert the vma into the drm_mm on future passes. To prevent that, we want to unwind i915_vma_insert() if we fail in our attempt to bind. Fixes: 59bfa1248e22 ("drm/i915: Start passing around i915_vma from execbuffer") Testcase: igt/drv_selftest/live_gtt Signed-off-by: Chris Wilson Cc: Matthew Auld Cc: Joonas Lahtinen Cc: # v4.9+ Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20170227122654.27651-3-chris@chris-wilson.co.uk (cherry picked from commit 31c7effa39f21f0fea1b3250ae9ff32b9c7e1ae5) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_vma.c | 57 ++++++++++++++++++++++++++--------------- 1 file changed, 37 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_vma.c b/drivers/gpu/drm/i915/i915_vma.c index 155906e84812..df20e9bc1c0f 100644 --- a/drivers/gpu/drm/i915/i915_vma.c +++ b/drivers/gpu/drm/i915/i915_vma.c @@ -512,10 +512,36 @@ err_unpin: return ret; } +static void +i915_vma_remove(struct i915_vma *vma) +{ + struct drm_i915_gem_object *obj = vma->obj; + + GEM_BUG_ON(!drm_mm_node_allocated(&vma->node)); + GEM_BUG_ON(vma->flags & (I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND)); + + drm_mm_remove_node(&vma->node); + list_move_tail(&vma->vm_link, &vma->vm->unbound_list); + + /* Since the unbound list is global, only move to that list if + * no more VMAs exist. + */ + if (--obj->bind_count == 0) + list_move_tail(&obj->global_link, + &to_i915(obj->base.dev)->mm.unbound_list); + + /* And finally now the object is completely decoupled from this vma, + * we can drop its hold on the backing storage and allow it to be + * reaped by the shrinker. + */ + i915_gem_object_unpin_pages(obj); + GEM_BUG_ON(atomic_read(&obj->mm.pages_pin_count) < obj->bind_count); +} + int __i915_vma_do_pin(struct i915_vma *vma, u64 size, u64 alignment, u64 flags) { - unsigned int bound = vma->flags; + const unsigned int bound = vma->flags; int ret; lockdep_assert_held(&vma->vm->i915->drm.struct_mutex); @@ -524,18 +550,18 @@ int __i915_vma_do_pin(struct i915_vma *vma, if (WARN_ON(bound & I915_VMA_PIN_OVERFLOW)) { ret = -EBUSY; - goto err; + goto err_unpin; } if ((bound & I915_VMA_BIND_MASK) == 0) { ret = i915_vma_insert(vma, size, alignment, flags); if (ret) - goto err; + goto err_unpin; } ret = i915_vma_bind(vma, vma->obj->cache_level, flags); if (ret) - goto err; + goto err_remove; if ((bound ^ vma->flags) & I915_VMA_GLOBAL_BIND) __i915_vma_set_map_and_fenceable(vma); @@ -544,7 +570,12 @@ int __i915_vma_do_pin(struct i915_vma *vma, GEM_BUG_ON(i915_vma_misplaced(vma, size, alignment, flags)); return 0; -err: +err_remove: + if ((bound & I915_VMA_BIND_MASK) == 0) { + GEM_BUG_ON(vma->pages); + i915_vma_remove(vma); + } +err_unpin: __i915_vma_unpin(vma); return ret; } @@ -657,9 +688,6 @@ int i915_vma_unbind(struct i915_vma *vma) } vma->flags &= ~(I915_VMA_GLOBAL_BIND | I915_VMA_LOCAL_BIND); - drm_mm_remove_node(&vma->node); - list_move_tail(&vma->vm_link, &vma->vm->unbound_list); - if (vma->pages != obj->mm.pages) { GEM_BUG_ON(!vma->pages); sg_free_table(vma->pages); @@ -667,18 +695,7 @@ int i915_vma_unbind(struct i915_vma *vma) } vma->pages = NULL; - /* Since the unbound list is global, only move to that list if - * no more VMAs exist. */ - if (--obj->bind_count == 0) - list_move_tail(&obj->global_link, - &to_i915(obj->base.dev)->mm.unbound_list); - - /* And finally now the object is completely decoupled from this vma, - * we can drop its hold on the backing storage and allow it to be - * reaped by the shrinker. - */ - i915_gem_object_unpin_pages(obj); - GEM_BUG_ON(atomic_read(&obj->mm.pages_pin_count) < obj->bind_count); + i915_vma_remove(vma); destroy: if (unlikely(i915_vma_is_closed(vma))) -- cgit From 34dc8993eef63681b062871413a9484008a2a78f Mon Sep 17 00:00:00 2001 From: Mika Kuoppala Date: Wed, 15 Feb 2017 15:52:59 +0200 Subject: drm/i915: Avoid tweaking evaluation thresholds on Baytrail v3 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Certain Baytrails, namely the 4 cpu core variants, have been plaqued by spurious system hangs, mostly occurring with light loads. Multiple bisects by various people point to a commit which changes the reclocking strategy for Baytrail to follow its bigger brethen: commit 8fb55197e64d ("drm/i915: Agressive downclocking on Baytrail") There is also a review comment attached to this commit from Deepak S on avoiding punit access on Cherryview and thus it was excluded on common reclocking path. By taking the same approach and omitting the punit access by not tweaking the thresholds when the hardware has been asked to move into different frequency, considerable gains in stability have been observed. With J1900 box, light render/video load would end up in system hang in usually less than 12 hours. With this patch applied, the cumulative uptime has now been 34 days without issues. To provoke system hang, light loads on both render and bsd engines in parallel have been used: glxgears >/dev/null 2>/dev/null & mpv --vo=vaapi --hwdec=vaapi --loop=inf vid.mp4 So far, author has not witnessed system hang with above load and this patch applied. Reports from the tenacious people at kernel bugzilla are also promising. Considering that the punit access frequency with this patch is considerably less, there is a possibility that this will push the, still unknown, root cause past the triggering point on most loads. But as we now can reliably reproduce the hang independently, we can reduce the pain that users are having and use a static thresholds until a root cause is found. v3: don't break debugfs and simplification (Chris Wilson) References: https://bugzilla.kernel.org/show_bug.cgi?id=109051 Cc: Chris Wilson Cc: Ville Syrjälä Cc: Len Brown Cc: Daniel Vetter Cc: Jani Nikula Cc: fritsch@xbmc.org Cc: miku@iki.fi Cc: Ezequiel Garcia CC: Michal Feix Cc: Hans de Goede Cc: Deepak S Cc: Jarkko Nikula Cc: # v4.2+ Acked-by: Daniel Vetter Acked-by: Chris Wilson Signed-off-by: Mika Kuoppala Link: http://patchwork.freedesktop.org/patch/msgid/1487166779-26945-1-git-send-email-mika.kuoppala@intel.com (cherry picked from commit 6067a27d1f0184596d51decbac1c1fdc4acb012f) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_pm.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 249623d45be0..65cd4c56c9dd 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4891,6 +4891,12 @@ static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val) break; } + /* When byt can survive without system hang with dynamic + * sw freq adjustments, this restriction can be lifted. + */ + if (IS_VALLEYVIEW(dev_priv)) + goto skip_hw_write; + I915_WRITE(GEN6_RP_UP_EI, GT_INTERVAL_FROM_US(dev_priv, ei_up)); I915_WRITE(GEN6_RP_UP_THRESHOLD, @@ -4911,6 +4917,7 @@ static void gen6_set_rps_thresholds(struct drm_i915_private *dev_priv, u8 val) GEN6_RP_UP_BUSY_AVG | GEN6_RP_DOWN_IDLE_AVG); +skip_hw_write: dev_priv->rps.power = new_power; dev_priv->rps.up_threshold = threshold_up; dev_priv->rps.down_threshold = threshold_down; -- cgit From d253371c4c2f5fc2d884ef25f64decd7549aff5a Mon Sep 17 00:00:00 2001 From: Imre Deak Date: Fri, 24 Feb 2017 16:32:10 +0200 Subject: drm/i915/gen9: Increase PCODE request timeout to 50ms MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After commit 2c7d0602c815277f7cb7c932b091288710d8aba7 Author: Imre Deak Date: Mon Dec 5 18:27:37 2016 +0200 drm/i915/gen9: Fix PCODE polling during CDCLK change notification there is still one report of the CDCLK-change request timing out on a KBL machine, see the Reference link. On that machine the maximum time the request took to succeed was 34ms, so increase the timeout to 50ms. v2: - Change timeout from 100 to 50 ms to maintain the current 50 ms limit for atomic waits in the driver. (Chris, Tvrtko) Reference: https://bugs.freedesktop.org/show_bug.cgi?id=99345 Cc: Ville Syrjälä Cc: Chris Wilson Cc: Tvrtko Ursulin Cc: Signed-off-by: Imre Deak Acked-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/1487946730-17162-1-git-send-email-imre.deak@intel.com (cherry picked from commit 0129936ddda26afd5d9d207c4e86b2425952579f) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_pm.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index 65cd4c56c9dd..940bab22d464 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -7923,10 +7923,10 @@ static bool skl_pcode_try_request(struct drm_i915_private *dev_priv, u32 mbox, * @timeout_base_ms: timeout for polling with preemption enabled * * Keep resending the @request to @mbox until PCODE acknowledges it, PCODE - * reports an error or an overall timeout of @timeout_base_ms+10 ms expires. + * reports an error or an overall timeout of @timeout_base_ms+50 ms expires. * The request is acknowledged once the PCODE reply dword equals @reply after * applying @reply_mask. Polling is first attempted with preemption enabled - * for @timeout_base_ms and if this times out for another 10 ms with + * for @timeout_base_ms and if this times out for another 50 ms with * preemption disabled. * * Returns 0 on success, %-ETIMEDOUT in case of a timeout, <0 in case of some @@ -7962,14 +7962,15 @@ int skl_pcode_request(struct drm_i915_private *dev_priv, u32 mbox, u32 request, * worst case) _and_ PCODE was busy for some reason even after a * (queued) request and @timeout_base_ms delay. As a workaround retry * the poll with preemption disabled to maximize the number of - * requests. Increase the timeout from @timeout_base_ms to 10ms to + * requests. Increase the timeout from @timeout_base_ms to 50ms to * account for interrupts that could reduce the number of these - * requests. + * requests, and for any quirks of the PCODE firmware that delays + * the request completion. */ DRM_DEBUG_KMS("PCODE timeout, retrying with preemption disabled\n"); WARN_ON_ONCE(timeout_base_ms > 3); preempt_disable(); - ret = wait_for_atomic(COND, 10); + ret = wait_for_atomic(COND, 50); preempt_enable(); out: -- cgit From 38230243ef316ac696956d75dc78a22e3aa789b9 Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Tue, 28 Feb 2017 15:28:47 +0100 Subject: drm/i915: Move updating color management to before vblank evasion MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This cannot be done reliably during vblank evasasion since the color management registers are not double buffered. The original commit that moved it always during vblank evasion was wrong, so revert it to before vblank evasion again. Signed-off-by: Maarten Lankhorst Fixes: 20a34e78f0d7 ("drm/i915: Update color management during vblank evasion.") Cc: stable@vger.kernel.org # v4.7+ Link: http://patchwork.freedesktop.org/patch/msgid/1488292128-14540-1-git-send-email-maarten.lankhorst@linux.intel.com Reviewed-by: Ville Syrjälä (cherry picked from commit 567f0792a6ad11c0c2620944b8eeb777359fb85a) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 01341670738f..9a8b6a13233d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -14946,17 +14946,19 @@ static void intel_begin_crtc_commit(struct drm_crtc *crtc, to_intel_atomic_state(old_crtc_state->state); bool modeset = needs_modeset(crtc->state); + if (!modeset && + (intel_cstate->base.color_mgmt_changed || + intel_cstate->update_pipe)) { + intel_color_set_csc(crtc->state); + intel_color_load_luts(crtc->state); + } + /* Perform vblank evasion around commit operation */ intel_pipe_update_start(intel_crtc); if (modeset) goto out; - if (crtc->state->color_mgmt_changed || to_intel_crtc_state(crtc->state)->update_pipe) { - intel_color_set_csc(crtc->state); - intel_color_load_luts(crtc->state); - } - if (intel_cstate->update_pipe) intel_update_pipe_config(intel_crtc, old_intel_cstate); else if (INTEL_GEN(dev_priv) >= 9) -- cgit From 0d9dc306e15b59bf50db87ebcb1e2248586d4733 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 7 Mar 2017 13:20:31 +0000 Subject: drm/i915: Store a permanent error in obj->mm.pages Once the object has been truncated, it is unrecoverable. To facilitate detection of this state store the error in obj->mm.pages. This is required for the next patch which should be applied to v4.10 (via stable), so we also need to mark this patch for backporting. In that regard, let's consider this to be a fix/improvement too. v2: Avoid dereferencing the ERR_PTR when freeing the object. Fixes: 1233e2db199d ("drm/i915: Move object backing storage manipulation to its own locking") Signed-off-by: Chris Wilson Cc: Joonas Lahtinen Cc: # v4.10+ Link: http://patchwork.freedesktop.org/patch/msgid/20170307132031.32461-1-chris@chris-wilson.co.uk Reviewed-by: Joonas Lahtinen (cherry picked from commit 4e5462ee843c883790e9609cf560d88960ea4227) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_gem.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index c45af09555dc..3591e8656ff9 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2119,6 +2119,7 @@ i915_gem_object_truncate(struct drm_i915_gem_object *obj) */ shmem_truncate_range(file_inode(obj->base.filp), 0, (loff_t)-1); obj->mm.madv = __I915_MADV_PURGED; + obj->mm.pages = ERR_PTR(-EFAULT); } /* Try to discard unwanted pages */ @@ -2218,7 +2219,9 @@ void __i915_gem_object_put_pages(struct drm_i915_gem_object *obj, __i915_gem_object_reset_page_iter(obj); - obj->ops->put_pages(obj, pages); + if (!IS_ERR(pages)) + obj->ops->put_pages(obj, pages); + unlock: mutex_unlock(&obj->mm.lock); } @@ -2437,7 +2440,7 @@ int __i915_gem_object_get_pages(struct drm_i915_gem_object *obj) if (err) return err; - if (unlikely(!obj->mm.pages)) { + if (unlikely(IS_ERR_OR_NULL(obj->mm.pages))) { err = ____i915_gem_object_get_pages(obj); if (err) goto unlock; @@ -2515,7 +2518,7 @@ void *i915_gem_object_pin_map(struct drm_i915_gem_object *obj, pinned = true; if (!atomic_inc_not_zero(&obj->mm.pages_pin_count)) { - if (unlikely(!obj->mm.pages)) { + if (unlikely(IS_ERR_OR_NULL(obj->mm.pages))) { ret = ____i915_gem_object_get_pages(obj); if (ret) goto err_unlock; -- cgit From 4e6fdafa7ac395ad47a80a0e7b4fd1e11550f862 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Tue, 7 Mar 2017 12:03:38 +0000 Subject: drm/i915: Use pagecache write to prepopulate shmemfs from pwrite-ioctl Before we instantiate/pin the backing store for our use, we can prepopulate the shmemfs filp efficiently using a write into the pagecache. We avoid the penalty of instantiating all the pages, important if the user is just writing to a few and never uses the object on the GPU, and using a direct write into shmemfs allows it to avoid the cost of retrieving a page (mostly the clear-before-use, but in theory we could curtail swapin) before it is overwritten. This can be extended later to provide additional specialisation for other backends (other than shmemfs). For now it provides a defense against very large write-only allocations from exhausting all of system memory. v2: Smelling fixes. Fixes: fe115628d567 ("drm/i915: Implement pwrite without struct-mutex") References: https://bugs.freedesktop.org/show_bug.cgi?id=99107 Signed-off-by: Chris Wilson Cc: Matthew Auld Cc: Joonas Lahtinen Cc: Mika Kuoppala Cc: # v4.10+ Reviewed-by: Joonas Lahtinen Reviewed-by: Tvrtko Ursulin Link: http://patchwork.freedesktop.org/patch/msgid/20170307120338.7277-2-chris@chris-wilson.co.uk (cherry picked from commit 7c55e2c5772dcf3cbacd0fa2bcfeefae416b73f7) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_gem.c | 78 ++++++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/i915_gem_object.h | 3 ++ 2 files changed, 81 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index 3591e8656ff9..10777da73039 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -1434,6 +1434,12 @@ i915_gem_pwrite_ioctl(struct drm_device *dev, void *data, trace_i915_gem_object_pwrite(obj, args->offset, args->size); + ret = -ENODEV; + if (obj->ops->pwrite) + ret = obj->ops->pwrite(obj, args); + if (ret != -ENODEV) + goto err; + ret = i915_gem_object_wait(obj, I915_WAIT_INTERRUPTIBLE | I915_WAIT_ALL, @@ -2566,6 +2572,75 @@ err_unlock: goto out_unlock; } +static int +i915_gem_object_pwrite_gtt(struct drm_i915_gem_object *obj, + const struct drm_i915_gem_pwrite *arg) +{ + struct address_space *mapping = obj->base.filp->f_mapping; + char __user *user_data = u64_to_user_ptr(arg->data_ptr); + u64 remain, offset; + unsigned int pg; + + /* Before we instantiate/pin the backing store for our use, we + * can prepopulate the shmemfs filp efficiently using a write into + * the pagecache. We avoid the penalty of instantiating all the + * pages, important if the user is just writing to a few and never + * uses the object on the GPU, and using a direct write into shmemfs + * allows it to avoid the cost of retrieving a page (either swapin + * or clearing-before-use) before it is overwritten. + */ + if (READ_ONCE(obj->mm.pages)) + return -ENODEV; + + /* Before the pages are instantiated the object is treated as being + * in the CPU domain. The pages will be clflushed as required before + * use, and we can freely write into the pages directly. If userspace + * races pwrite with any other operation; corruption will ensue - + * that is userspace's prerogative! + */ + + remain = arg->size; + offset = arg->offset; + pg = offset_in_page(offset); + + do { + unsigned int len, unwritten; + struct page *page; + void *data, *vaddr; + int err; + + len = PAGE_SIZE - pg; + if (len > remain) + len = remain; + + err = pagecache_write_begin(obj->base.filp, mapping, + offset, len, 0, + &page, &data); + if (err < 0) + return err; + + vaddr = kmap(page); + unwritten = copy_from_user(vaddr + pg, user_data, len); + kunmap(page); + + err = pagecache_write_end(obj->base.filp, mapping, + offset, len, len - unwritten, + page, data); + if (err < 0) + return err; + + if (unwritten) + return -EFAULT; + + remain -= len; + user_data += len; + offset += len; + pg = 0; + } while (remain); + + return 0; +} + static bool ban_context(const struct i915_gem_context *ctx) { return (i915_gem_context_is_bannable(ctx) && @@ -3987,8 +4062,11 @@ void i915_gem_object_init(struct drm_i915_gem_object *obj, static const struct drm_i915_gem_object_ops i915_gem_object_ops = { .flags = I915_GEM_OBJECT_HAS_STRUCT_PAGE | I915_GEM_OBJECT_IS_SHRINKABLE, + .get_pages = i915_gem_object_get_pages_gtt, .put_pages = i915_gem_object_put_pages_gtt, + + .pwrite = i915_gem_object_pwrite_gtt, }; struct drm_i915_gem_object * diff --git a/drivers/gpu/drm/i915/i915_gem_object.h b/drivers/gpu/drm/i915/i915_gem_object.h index bf90b07163d1..76b80a0be797 100644 --- a/drivers/gpu/drm/i915/i915_gem_object.h +++ b/drivers/gpu/drm/i915/i915_gem_object.h @@ -54,6 +54,9 @@ struct drm_i915_gem_object_ops { struct sg_table *(*get_pages)(struct drm_i915_gem_object *); void (*put_pages)(struct drm_i915_gem_object *, struct sg_table *); + int (*pwrite)(struct drm_i915_gem_object *, + const struct drm_i915_gem_pwrite *); + int (*dmabuf_export)(struct drm_i915_gem_object *); void (*release)(struct drm_i915_gem_object *); }; -- cgit From edd06b8353772dca7afcd4640dafa83b521edd55 Mon Sep 17 00:00:00 2001 From: Ville Syrjälä Date: Tue, 7 Mar 2017 22:54:19 +0200 Subject: drm/i915: Nuke debug messages from the pipe update critical section MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit printks are slow so we should not be doing them from the vblank evade critical section. These could explain why we sometimes seem to blow past our 100 usec deadline. The problem has been there ever since commit bfd16b2a23dc ("drm/i915: Make updating pipe without modeset atomic.") but it may not have been readily visible until commit e1edbd44e23b ("drm/i915: Complain if we take too long under vblank evasion.") increased our chances of noticing it. Cc: stable@vger.kernel.org Cc: Maarten Lankhorst Fixes: bfd16b2a23dc ("drm/i915: Make updating pipe without modeset atomic.") Signed-off-by: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/20170307205419.19447-1-ville.syrjala@linux.intel.com Reviewed-by: Maarten Lankhorst (cherry picked from commit c3f8ad57a01a31397e5a0349a226a32f35ddc19c) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9a8b6a13233d..b3e0cd133b49 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -3669,10 +3669,6 @@ static void intel_update_pipe_config(struct intel_crtc *crtc, /* drm_atomic_helper_update_legacy_modeset_state might not be called. */ crtc->base.mode = crtc->base.state->mode; - DRM_DEBUG_KMS("Updating pipe size %ix%i -> %ix%i\n", - old_crtc_state->pipe_src_w, old_crtc_state->pipe_src_h, - pipe_config->pipe_src_w, pipe_config->pipe_src_h); - /* * Update pipe size and adjust fitter if needed: the reason for this is * that in compute_mode_changes we check the native mode (not the pfit @@ -4796,23 +4792,17 @@ static void skylake_pfit_enable(struct intel_crtc *crtc) struct intel_crtc_scaler_state *scaler_state = &crtc->config->scaler_state; - DRM_DEBUG_KMS("for crtc_state = %p\n", crtc->config); - if (crtc->config->pch_pfit.enabled) { int id; - if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) { - DRM_ERROR("Requesting pfit without getting a scaler first\n"); + if (WARN_ON(crtc->config->scaler_state.scaler_id < 0)) return; - } id = scaler_state->scaler_id; I915_WRITE(SKL_PS_CTRL(pipe, id), PS_SCALER_EN | PS_FILTER_MEDIUM | scaler_state->scalers[id].mode); I915_WRITE(SKL_PS_WIN_POS(pipe, id), crtc->config->pch_pfit.pos); I915_WRITE(SKL_PS_WIN_SZ(pipe, id), crtc->config->pch_pfit.size); - - DRM_DEBUG_KMS("for crtc_state = %p scaler_id = %d\n", crtc->config, id); } } -- cgit From 5a8cf90d743f2d05433c6109f6c1b9b904b0cdb7 Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Thu, 2 Feb 2017 20:47:41 +0000 Subject: drm/i915: Drain the freed state from the tail of the next commit If we have any residual freed atomic state from earlier commits, flush the freed list after performing the current modeset. This prevents the freed list from ever-growing if userspace manages to starve the kernel threads (i.e. we are never able to run our free state worker and eventually the system may even oom). Fixes: 6f0f02dc56f1 ("drm/i915: Move atomic state free from out of fence release") Testcase: igt/kms_cursor/legacy/all-pipes-single-bo Reported-by: Maarten Lankhorst Signed-off-by: Chris Wilson Cc: Maarten Lankhorst Cc: Joonas Lahtinen Cc: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/20170202204741.18231-1-chris@chris-wilson.co.uk Reviewed-by: Maarten Lankhorst (cherry picked from commit ba318c61a9719577b6f451c055f364e4116874b2) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_display.c | 34 +++++++++++++++++++++------------- 1 file changed, 21 insertions(+), 13 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index b3e0cd133b49..3282b0f4b134 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -14369,6 +14369,24 @@ static void skl_update_crtcs(struct drm_atomic_state *state, } while (progress); } +static void intel_atomic_helper_free_state(struct drm_i915_private *dev_priv) +{ + struct intel_atomic_state *state, *next; + struct llist_node *freed; + + freed = llist_del_all(&dev_priv->atomic_helper.free_list); + llist_for_each_entry_safe(state, next, freed, freed) + drm_atomic_state_put(&state->base); +} + +static void intel_atomic_helper_free_state_worker(struct work_struct *work) +{ + struct drm_i915_private *dev_priv = + container_of(work, typeof(*dev_priv), atomic_helper.free_work); + + intel_atomic_helper_free_state(dev_priv); +} + static void intel_atomic_commit_tail(struct drm_atomic_state *state) { struct drm_device *dev = state->dev; @@ -14535,6 +14553,8 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) * can happen also when the device is completely off. */ intel_uncore_arm_unclaimed_mmio_detection(dev_priv); + + intel_atomic_helper_free_state(dev_priv); } static void intel_atomic_commit_work(struct work_struct *work) @@ -16591,18 +16611,6 @@ fail: drm_modeset_acquire_fini(&ctx); } -static void intel_atomic_helper_free_state(struct work_struct *work) -{ - struct drm_i915_private *dev_priv = - container_of(work, typeof(*dev_priv), atomic_helper.free_work); - struct intel_atomic_state *state, *next; - struct llist_node *freed; - - freed = llist_del_all(&dev_priv->atomic_helper.free_list); - llist_for_each_entry_safe(state, next, freed, freed) - drm_atomic_state_put(&state->base); -} - int intel_modeset_init(struct drm_device *dev) { struct drm_i915_private *dev_priv = to_i915(dev); @@ -16623,7 +16631,7 @@ int intel_modeset_init(struct drm_device *dev) dev->mode_config.funcs = &intel_mode_funcs; INIT_WORK(&dev_priv->atomic_helper.free_work, - intel_atomic_helper_free_state); + intel_atomic_helper_free_state_worker); intel_init_quirks(dev); -- cgit From 85550f9148a852ed363a386577ad31b97b95dfb8 Mon Sep 17 00:00:00 2001 From: Jelle Martijn Kok Date: Tue, 21 Feb 2017 12:48:18 +0100 Subject: usb: ohci-at91: Do not drop unhandled USB suspend control requests In patch 2e2aa1bc7eff90ecm, USB suspend and wakeup control requests are passed to SFR_OHCIICR register. If a processor does not have such a register, this hub control request will be dropped. If no such a SFR register is available, all USB suspend control requests will now be processed using ohci_hub_control() (like before patch 2e2aa1bc7eff90ecm.) Tested on an Atmel AT91SAM9G20 with an on-board TI TUSB2046B hub chip If the last USB device is unplugged from the USB hub, the hub goes into sleep and will not wakeup when an USB devices is inserted. Fixes: 2e2aa1bc7eff90ec ("usb: ohci-at91: Forcibly suspend ports while USB suspend") Signed-off-by: Jelle Martijn Kok Tested-by: Wenyou Yang Cc: Wenyou Yang Cc: Alan Stern Cc: stable Acked-by: Nicolas Ferre Reviewed-by: Alexandre Belloni Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/ohci-at91.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c index 414e3c376dbb..5302f988e7e6 100644 --- a/drivers/usb/host/ohci-at91.c +++ b/drivers/usb/host/ohci-at91.c @@ -350,7 +350,7 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_SUSPEND: dev_dbg(hcd->self.controller, "SetPortFeat: SUSPEND\n"); - if (valid_port(wIndex)) { + if (valid_port(wIndex) && ohci_at91->sfr_regmap) { ohci_at91_port_suspend(ohci_at91->sfr_regmap, 1); return 0; @@ -393,7 +393,7 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, case USB_PORT_FEAT_SUSPEND: dev_dbg(hcd->self.controller, "ClearPortFeature: SUSPEND\n"); - if (valid_port(wIndex)) { + if (valid_port(wIndex) && ohci_at91->sfr_regmap) { ohci_at91_port_suspend(ohci_at91->sfr_regmap, 0); return 0; -- cgit From fd567653bdb908009b650f079bfd4b63169e2ac4 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Wed, 22 Feb 2017 15:23:22 -0300 Subject: usb: phy: isp1301: Add OF device ID table The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. Signed-off-by: Javier Martinez Canillas Signed-off-by: Greg Kroah-Hartman --- drivers/usb/phy/phy-isp1301.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/phy/phy-isp1301.c b/drivers/usb/phy/phy-isp1301.c index db68156568e6..b3b33cf7ddf6 100644 --- a/drivers/usb/phy/phy-isp1301.c +++ b/drivers/usb/phy/phy-isp1301.c @@ -33,6 +33,12 @@ static const struct i2c_device_id isp1301_id[] = { }; MODULE_DEVICE_TABLE(i2c, isp1301_id); +static const struct of_device_id isp1301_of_match[] = { + {.compatible = "nxp,isp1301" }, + { }, +}; +MODULE_DEVICE_TABLE(of, isp1301_of_match); + static struct i2c_client *isp1301_i2c_client; static int __isp1301_write(struct isp1301 *isp, u8 reg, u8 value, u8 clear) @@ -130,6 +136,7 @@ static int isp1301_remove(struct i2c_client *client) static struct i2c_driver isp1301_driver = { .driver = { .name = DRV_NAME, + .of_match_table = of_match_ptr(isp1301_of_match), }, .probe = isp1301_probe, .remove = isp1301_remove, -- cgit From b7321e81fc369abe353cf094d4f0dc2fe11ab95f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 7 Mar 2017 16:11:03 +0100 Subject: USB: iowarrior: fix NULL-deref at probe Make sure to check for the required interrupt-in endpoint to avoid dereferencing a NULL-pointer should a malicious device lack such an endpoint. Note that a fairly recent change purported to fix this issue, but added an insufficient test on the number of endpoints only, a test which can now be removed. Fixes: 4ec0ef3a8212 ("USB: iowarrior: fix oops with malicious USB descriptors") Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.") Cc: stable # 2.6.21 Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/iowarrior.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 095778ff984d..3ad058cbe6ca 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -781,12 +781,6 @@ static int iowarrior_probe(struct usb_interface *interface, iface_desc = interface->cur_altsetting; dev->product_id = le16_to_cpu(udev->descriptor.idProduct); - if (iface_desc->desc.bNumEndpoints < 1) { - dev_err(&interface->dev, "Invalid number of endpoints\n"); - retval = -EINVAL; - goto error; - } - /* set up the endpoint information */ for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) { endpoint = &iface_desc->endpoint[i].desc; @@ -797,6 +791,13 @@ static int iowarrior_probe(struct usb_interface *interface, /* this one will match for the IOWarrior56 only */ dev->int_out_endpoint = endpoint; } + + if (!dev->int_in_endpoint) { + dev_err(&interface->dev, "no interrupt-in endpoint found\n"); + retval = -ENODEV; + goto error; + } + /* we have to check the report_size often, so remember it in the endianness suitable for our machine */ dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint); if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) && -- cgit From de46e56653de7b3b54baa625bd582635008b8d05 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 7 Mar 2017 16:11:04 +0100 Subject: USB: iowarrior: fix NULL-deref in write Make sure to verify that we have the required interrupt-out endpoint for IOWarrior56 devices to avoid dereferencing a NULL-pointer in write should a malicious device lack such an endpoint. Fixes: 946b960d13c1 ("USB: add driver for iowarrior devices.") Cc: stable # 2.6.21 Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/iowarrior.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/misc/iowarrior.c b/drivers/usb/misc/iowarrior.c index 3ad058cbe6ca..37c63cb39714 100644 --- a/drivers/usb/misc/iowarrior.c +++ b/drivers/usb/misc/iowarrior.c @@ -798,6 +798,14 @@ static int iowarrior_probe(struct usb_interface *interface, goto error; } + if (dev->product_id == USB_DEVICE_ID_CODEMERCS_IOW56) { + if (!dev->int_out_endpoint) { + dev_err(&interface->dev, "no interrupt-out endpoint found\n"); + retval = -ENODEV; + goto error; + } + } + /* we have to check the report_size often, so remember it in the endianness suitable for our machine */ dev->report_size = usb_endpoint_maxp(dev->int_in_endpoint); if ((dev->interface->cur_altsetting->desc.bInterfaceNumber == 0) && -- cgit From d595259fbb7a7afed241b1afb2c4fe4b47de47fa Mon Sep 17 00:00:00 2001 From: Tobias Jakobi Date: Tue, 28 Feb 2017 00:46:58 +0100 Subject: usb-storage: Add ignore-residue quirk for Initio INIC-3619 This USB-SATA bridge chip is used in a StarTech enclosure for optical drives. Without the quirk MakeMKV fails during the key exchange with an installed BluRay drive: > Error 'Scsi error - ILLEGAL REQUEST:COPY PROTECTION KEY EXCHANGE FAILURE - KEY NOT ESTABLISHED' > occurred while issuing SCSI command AD010..080002400 to device 'SG:dev_11:2' Signed-off-by: Tobias Jakobi Acked-by: Alan Stern Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 16cc18369111..9129f6cb8230 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -2071,6 +2071,20 @@ UNUSUAL_DEV( 0x1370, 0x6828, 0x0110, 0x0110, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_IGNORE_RESIDUE ), +/* + * Reported by Tobias Jakobi + * The INIC-3619 bridge is used in the StarTech SLSODDU33B + * SATA-USB enclosure for slimline optical drives. + * + * The quirk enables MakeMKV to properly exchange keys with + * an installed BD drive. + */ +UNUSUAL_DEV( 0x13fd, 0x3609, 0x0209, 0x0209, + "Initio Corporation", + "INIC-3619", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_IGNORE_RESIDUE ), + /* Reported by Qinglin Ye */ UNUSUAL_DEV( 0x13fe, 0x3600, 0x0100, 0x0100, "Kingston", -- cgit From cfa47afe77b393e2c24a57e7e9611857a0b064f1 Mon Sep 17 00:00:00 2001 From: Richard Leitner Date: Mon, 6 Mar 2017 09:24:20 +0100 Subject: usb: usb251xb: remove max_{power,current}_{sp,bp} properties Remove the max_{power,current}_{sp,bp} properties of the usb251xb driver from devicetree. This is done to simplify the dt bindings as requested by Rob Herring in https://lkml.org/lkml/2017/2/15/1283. If those properties are ever needed by somebody they can be enabled again easily. Signed-off-by: Richard Leitner Acked-by: Rob Herring Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/usb251xb.c | 24 ++++-------------------- 1 file changed, 4 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 4e18600dc9b4..3f9c3060c477 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -432,26 +432,6 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, } } - hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF; - if (!of_property_read_u32(np, "max-sp-power", property_u32)) - hub->max_power_sp = min_t(u8, be32_to_cpu(*property_u32) / 2, - 250); - - hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS; - if (!of_property_read_u32(np, "max-bp-power", property_u32)) - hub->max_power_bp = min_t(u8, be32_to_cpu(*property_u32) / 2, - 250); - - hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF; - if (!of_property_read_u32(np, "max-sp-current", property_u32)) - hub->max_current_sp = min_t(u8, be32_to_cpu(*property_u32) / 2, - 250); - - hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS; - if (!of_property_read_u32(np, "max-bp-current", property_u32)) - hub->max_current_bp = min_t(u8, be32_to_cpu(*property_u32) / 2, - 250); - hub->power_on_time = USB251XB_DEF_POWER_ON_TIME; if (!of_property_read_u32(np, "power-on-time", property_u32)) hub->power_on_time = min_t(u8, be32_to_cpu(*property_u32) / 2, @@ -492,6 +472,10 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, /* The following parameters are currently not exposed to devicetree, but * may be as soon as needed. */ + hub->max_power_sp = USB251XB_DEF_MAX_POWER_SELF; + hub->max_power_bp = USB251XB_DEF_MAX_POWER_BUS; + hub->max_current_sp = USB251XB_DEF_MAX_CURRENT_SELF; + hub->max_current_bp = USB251XB_DEF_MAX_CURRENT_BUS; hub->bat_charge_en = USB251XB_DEF_BATTERY_CHARGING_ENABLE; hub->boost_up = USB251XB_DEF_BOOST_UP; hub->boost_x = USB251XB_DEF_BOOST_X; -- cgit From 7f7d8ba3b2140d993887a7db7a83d85c1f8db0e8 Mon Sep 17 00:00:00 2001 From: Richard Leitner Date: Mon, 6 Mar 2017 09:24:21 +0100 Subject: usb: usb251xb: dt: add unit suffix to oc-delay and power-on-time Rename oc-delay-* to oc-delay-us and make it expect a time value. Furthermore add -ms suffix to power-on-time. There changes were suggested by Rob Herring in https://lkml.org/lkml/2017/2/15/1283. Signed-off-by: Richard Leitner Signed-off-by: Greg Kroah-Hartman --- drivers/usb/misc/usb251xb.c | 35 ++++++++++++++++++++--------------- 1 file changed, 20 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/misc/usb251xb.c b/drivers/usb/misc/usb251xb.c index 3f9c3060c477..91f66d68bcb7 100644 --- a/drivers/usb/misc/usb251xb.c +++ b/drivers/usb/misc/usb251xb.c @@ -375,18 +375,24 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, if (of_get_property(np, "dynamic-power-switching", NULL)) hub->conf_data2 |= BIT(7); - if (of_get_property(np, "oc-delay-100us", NULL)) { - hub->conf_data2 &= ~BIT(5); - hub->conf_data2 &= ~BIT(4); - } else if (of_get_property(np, "oc-delay-4ms", NULL)) { - hub->conf_data2 &= ~BIT(5); - hub->conf_data2 |= BIT(4); - } else if (of_get_property(np, "oc-delay-8ms", NULL)) { - hub->conf_data2 |= BIT(5); - hub->conf_data2 &= ~BIT(4); - } else if (of_get_property(np, "oc-delay-16ms", NULL)) { - hub->conf_data2 |= BIT(5); - hub->conf_data2 |= BIT(4); + if (!of_property_read_u32(np, "oc-delay-us", property_u32)) { + if (*property_u32 == 100) { + /* 100 us*/ + hub->conf_data2 &= ~BIT(5); + hub->conf_data2 &= ~BIT(4); + } else if (*property_u32 == 4000) { + /* 4 ms */ + hub->conf_data2 &= ~BIT(5); + hub->conf_data2 |= BIT(4); + } else if (*property_u32 == 16000) { + /* 16 ms */ + hub->conf_data2 |= BIT(5); + hub->conf_data2 |= BIT(4); + } else { + /* 8 ms (DEFAULT) */ + hub->conf_data2 |= BIT(5); + hub->conf_data2 &= ~BIT(4); + } } if (of_get_property(np, "compound-device", NULL)) @@ -433,9 +439,8 @@ static int usb251xb_get_ofdata(struct usb251xb *hub, } hub->power_on_time = USB251XB_DEF_POWER_ON_TIME; - if (!of_property_read_u32(np, "power-on-time", property_u32)) - hub->power_on_time = min_t(u8, be32_to_cpu(*property_u32) / 2, - 255); + if (!of_property_read_u32(np, "power-on-time-ms", property_u32)) + hub->power_on_time = min_t(u8, *property_u32 / 2, 255); if (of_property_read_u16_array(np, "language-id", &hub->lang_id, 1)) hub->lang_id = USB251XB_DEF_LANGUAGE_ID; -- cgit From 2f6821462fe3ace62df3f1b5a9463153e8288298 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Fri, 24 Feb 2017 19:11:28 +0100 Subject: USB: serial: digi_acceleport: fix OOB-event processing A recent change claimed to fix an off-by-one error in the OOB-port completion handler, but instead introduced such an error. This could specifically led to modem-status changes going unnoticed, effectively breaking TIOCMGET. Note that the offending commit fixes a loop-condition underflow and is marked for stable, but should not be backported without this fix. Reported-by: Ben Hutchings Fixes: 2d380889215f ("USB: serial: digi_acceleport: fix OOB data sanity check") Cc: stable # v2.6.30 Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/digi_acceleport.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c index ab78111e0968..6537d3ca2797 100644 --- a/drivers/usb/serial/digi_acceleport.c +++ b/drivers/usb/serial/digi_acceleport.c @@ -1500,7 +1500,7 @@ static int digi_read_oob_callback(struct urb *urb) return -1; /* handle each oob command */ - for (i = 0; i < urb->actual_length - 4; i += 4) { + for (i = 0; i < urb->actual_length - 3; i += 4) { opcode = buf[i]; line = buf[i + 1]; status = buf[i + 2]; -- cgit From 28b62b1458685d8f68f67d9b2d511bf8fa32b746 Mon Sep 17 00:00:00 2001 From: Krzysztof Kozlowski Date: Wed, 8 Mar 2017 23:14:20 +0200 Subject: crypto: s5p-sss - Fix spinlock recursion on LRW(AES) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Running TCRYPT with LRW compiled causes spinlock recursion: testing speed of async lrw(aes) (lrw(ecb-aes-s5p)) encryption tcrypt: test 0 (256 bit key, 16 byte blocks): 19007 operations in 1 seconds (304112 bytes) tcrypt: test 1 (256 bit key, 64 byte blocks): 15753 operations in 1 seconds (1008192 bytes) tcrypt: test 2 (256 bit key, 256 byte blocks): 14293 operations in 1 seconds (3659008 bytes) tcrypt: test 3 (256 bit key, 1024 byte blocks): 11906 operations in 1 seconds (12191744 bytes) tcrypt: test 4 (256 bit key, 8192 byte blocks): BUG: spinlock recursion on CPU#1, irq/84-10830000/89  lock: 0xeea99a68, .magic: dead4ead, .owner: irq/84-10830000/89, .owner_cpu: 1 CPU: 1 PID: 89 Comm: irq/84-10830000 Not tainted 4.11.0-rc1-00001-g897ca6d0800d #559 Hardware name: SAMSUNG EXYNOS (Flattened Device Tree) [] (unwind_backtrace) from [] (show_stack+0x10/0x14) [] (show_stack) from [] (dump_stack+0x78/0x8c) [] (dump_stack) from [] (do_raw_spin_lock+0x11c/0x120) [] (do_raw_spin_lock) from [] (_raw_spin_lock_irqsave+0x20/0x28) [] (_raw_spin_lock_irqsave) from [] (s5p_aes_crypt+0x2c/0xb4) [] (s5p_aes_crypt) from [] (do_encrypt+0x78/0xb0 [lrw]) [] (do_encrypt [lrw]) from [] (encrypt_done+0x24/0x54 [lrw]) [] (encrypt_done [lrw]) from [] (s5p_aes_complete+0x60/0xcc) [] (s5p_aes_complete) from [] (s5p_aes_interrupt+0x134/0x1a0) [] (s5p_aes_interrupt) from [] (irq_thread_fn+0x1c/0x54) [] (irq_thread_fn) from [] (irq_thread+0x12c/0x1e0) [] (irq_thread) from [] (kthread+0x108/0x138) [] (kthread) from [] (ret_from_fork+0x14/0x3c) Interrupt handling routine was calling req->base.complete() under spinlock. In most cases this wasn't fatal but when combined with some of the cipher modes (like LRW) this caused recursion - starting the new encryption (s5p_aes_crypt()) while still holding the spinlock from previous round (s5p_aes_complete()). Beside that, the s5p_aes_interrupt() error handling path could execute two completions in case of error for RX and TX blocks. Rewrite the interrupt handling routine and the completion by: 1. Splitting the operations on scatterlist copies from s5p_aes_complete() into separate s5p_sg_done(). This still should be done under lock. The s5p_aes_complete() now only calls req->base.complete() and it has to be called outside of lock. 2. Moving the s5p_aes_complete() out of spinlock critical sections. In interrupt service routine s5p_aes_interrupts(), it appeared in few places, including error paths inside other functions called from ISR. This code was not so obvious to read so simplify it by putting the s5p_aes_complete() only within ISR level. Reported-by: Nathan Royce Cc: # v4.10.x: 07de4bc88c crypto: s5p-sss - Fix completing Cc: # v4.10.x Signed-off-by: Krzysztof Kozlowski Signed-off-by: Herbert Xu --- drivers/crypto/s5p-sss.c | 127 ++++++++++++++++++++++++++++++----------------- 1 file changed, 82 insertions(+), 45 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/s5p-sss.c b/drivers/crypto/s5p-sss.c index a668286d62cb..1b9da3dc799b 100644 --- a/drivers/crypto/s5p-sss.c +++ b/drivers/crypto/s5p-sss.c @@ -270,7 +270,7 @@ static void s5p_sg_copy_buf(void *buf, struct scatterlist *sg, scatterwalk_done(&walk, out, 0); } -static void s5p_aes_complete(struct s5p_aes_dev *dev, int err) +static void s5p_sg_done(struct s5p_aes_dev *dev) { if (dev->sg_dst_cpy) { dev_dbg(dev->dev, @@ -281,8 +281,11 @@ static void s5p_aes_complete(struct s5p_aes_dev *dev, int err) } s5p_free_sg_cpy(dev, &dev->sg_src_cpy); s5p_free_sg_cpy(dev, &dev->sg_dst_cpy); +} - /* holding a lock outside */ +/* Calls the completion. Cannot be called with dev->lock hold. */ +static void s5p_aes_complete(struct s5p_aes_dev *dev, int err) +{ dev->req->base.complete(&dev->req->base, err); dev->busy = false; } @@ -368,51 +371,44 @@ exit: } /* - * Returns true if new transmitting (output) data is ready and its - * address+length have to be written to device (by calling - * s5p_set_dma_outdata()). False otherwise. + * Returns -ERRNO on error (mapping of new data failed). + * On success returns: + * - 0 if there is no more data, + * - 1 if new transmitting (output) data is ready and its address+length + * have to be written to device (by calling s5p_set_dma_outdata()). */ -static bool s5p_aes_tx(struct s5p_aes_dev *dev) +static int s5p_aes_tx(struct s5p_aes_dev *dev) { - int err = 0; - bool ret = false; + int ret = 0; s5p_unset_outdata(dev); if (!sg_is_last(dev->sg_dst)) { - err = s5p_set_outdata(dev, sg_next(dev->sg_dst)); - if (err) - s5p_aes_complete(dev, err); - else - ret = true; - } else { - s5p_aes_complete(dev, err); - - dev->busy = true; - tasklet_schedule(&dev->tasklet); + ret = s5p_set_outdata(dev, sg_next(dev->sg_dst)); + if (!ret) + ret = 1; } return ret; } /* - * Returns true if new receiving (input) data is ready and its - * address+length have to be written to device (by calling - * s5p_set_dma_indata()). False otherwise. + * Returns -ERRNO on error (mapping of new data failed). + * On success returns: + * - 0 if there is no more data, + * - 1 if new receiving (input) data is ready and its address+length + * have to be written to device (by calling s5p_set_dma_indata()). */ -static bool s5p_aes_rx(struct s5p_aes_dev *dev) +static int s5p_aes_rx(struct s5p_aes_dev *dev/*, bool *set_dma*/) { - int err; - bool ret = false; + int ret = 0; s5p_unset_indata(dev); if (!sg_is_last(dev->sg_src)) { - err = s5p_set_indata(dev, sg_next(dev->sg_src)); - if (err) - s5p_aes_complete(dev, err); - else - ret = true; + ret = s5p_set_indata(dev, sg_next(dev->sg_src)); + if (!ret) + ret = 1; } return ret; @@ -422,33 +418,73 @@ static irqreturn_t s5p_aes_interrupt(int irq, void *dev_id) { struct platform_device *pdev = dev_id; struct s5p_aes_dev *dev = platform_get_drvdata(pdev); - bool set_dma_tx = false; - bool set_dma_rx = false; + int err_dma_tx = 0; + int err_dma_rx = 0; + bool tx_end = false; unsigned long flags; uint32_t status; + int err; spin_lock_irqsave(&dev->lock, flags); + /* + * Handle rx or tx interrupt. If there is still data (scatterlist did not + * reach end), then map next scatterlist entry. + * In case of such mapping error, s5p_aes_complete() should be called. + * + * If there is no more data in tx scatter list, call s5p_aes_complete() + * and schedule new tasklet. + */ status = SSS_READ(dev, FCINTSTAT); if (status & SSS_FCINTSTAT_BRDMAINT) - set_dma_rx = s5p_aes_rx(dev); - if (status & SSS_FCINTSTAT_BTDMAINT) - set_dma_tx = s5p_aes_tx(dev); + err_dma_rx = s5p_aes_rx(dev); + + if (status & SSS_FCINTSTAT_BTDMAINT) { + if (sg_is_last(dev->sg_dst)) + tx_end = true; + err_dma_tx = s5p_aes_tx(dev); + } SSS_WRITE(dev, FCINTPEND, status); - /* - * Writing length of DMA block (either receiving or transmitting) - * will start the operation immediately, so this should be done - * at the end (even after clearing pending interrupts to not miss the - * interrupt). - */ - if (set_dma_tx) - s5p_set_dma_outdata(dev, dev->sg_dst); - if (set_dma_rx) - s5p_set_dma_indata(dev, dev->sg_src); + if (err_dma_rx < 0) { + err = err_dma_rx; + goto error; + } + if (err_dma_tx < 0) { + err = err_dma_tx; + goto error; + } + + if (tx_end) { + s5p_sg_done(dev); + + spin_unlock_irqrestore(&dev->lock, flags); + + s5p_aes_complete(dev, 0); + dev->busy = true; + tasklet_schedule(&dev->tasklet); + } else { + /* + * Writing length of DMA block (either receiving or + * transmitting) will start the operation immediately, so this + * should be done at the end (even after clearing pending + * interrupts to not miss the interrupt). + */ + if (err_dma_tx == 1) + s5p_set_dma_outdata(dev, dev->sg_dst); + if (err_dma_rx == 1) + s5p_set_dma_indata(dev, dev->sg_src); + spin_unlock_irqrestore(&dev->lock, flags); + } + + return IRQ_HANDLED; + +error: + s5p_sg_done(dev); spin_unlock_irqrestore(&dev->lock, flags); + s5p_aes_complete(dev, err); return IRQ_HANDLED; } @@ -597,8 +633,9 @@ outdata_error: s5p_unset_indata(dev); indata_error: - s5p_aes_complete(dev, err); + s5p_sg_done(dev); spin_unlock_irqrestore(&dev->lock, flags); + s5p_aes_complete(dev, err); } static void s5p_tasklet_cb(unsigned long data) -- cgit From 9ad224744218a352964f31007a1420f2420a08a0 Mon Sep 17 00:00:00 2001 From: Javier Martinez Canillas Date: Thu, 9 Mar 2017 11:05:33 -0300 Subject: i2c: exynos5: Avoid transaction timeouts due TRANSFER_DONE_AUTO not set After commit 7999eecb7e56 ("i2c: exynos5: fix arbitration lost handling"), some I2C transactions are failing because the TRANSFER_DONE_AUTO field is not set in the I2C_TRANS_STATUS register so the i2c->status value is left to -EINVAL causing the i2c->msg_complete completion to never be signaled. For example, when reading the time of an I2C rtc on an Exynos5800 machine: $ cat /sys/class/rtc/rtc0/time [ 25.924594] exynos5-hsi2c 12e10000.i2c: rx timeout [ 65.028365] max77686-rtc max77802-rtc: Fail to read time reg(-22) cat: /sys/class/rtc/rtc0/time: Invalid argument The Exynos5422 manual states clearly that most I2C_TRANS_STATUS reg bits (including TRANSFER_DONE_AUTO) are cleared after the register is read. So reading has side effects and should only be done if HSI2C_INT_I2C was set. Fixes: 7999eecb7e56 ("i2c: exynos5: fix arbitration lost handling") Signed-off-by: Javier Martinez Canillas Reviewed-by: Andrzej Hajda Signed-off-by: Wolfram Sang --- drivers/i2c/busses/i2c-exynos5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c index cbd93ce0661f..736a82472101 100644 --- a/drivers/i2c/busses/i2c-exynos5.c +++ b/drivers/i2c/busses/i2c-exynos5.c @@ -457,7 +457,6 @@ static irqreturn_t exynos5_i2c_irq(int irqno, void *dev_id) int_status = readl(i2c->regs + HSI2C_INT_STATUS); writel(int_status, i2c->regs + HSI2C_INT_STATUS); - trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS); /* handle interrupt related to the transfer status */ if (i2c->variant->hw == HSI2C_EXYNOS7) { @@ -482,11 +481,13 @@ static irqreturn_t exynos5_i2c_irq(int irqno, void *dev_id) goto stop; } + trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS); if ((trans_status & HSI2C_MASTER_ST_MASK) == HSI2C_MASTER_ST_LOSE) { i2c->state = -EAGAIN; goto stop; } } else if (int_status & HSI2C_INT_I2C) { + trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS); if (trans_status & HSI2C_NO_DEV_ACK) { dev_dbg(i2c->dev, "No ACK from device\n"); i2c->state = -ENXIO; -- cgit From 8ce0928e6867fda4d208d7bddf251bce96ab8431 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 9 Mar 2017 16:32:17 +0100 Subject: Revert "i2c: add missing of_node_put in i2c_mux_del_adapters" This reverts commit 02dbfa5e5583523035f05636c614a0eca77f1aab. I grabbed the wrong version from the list and will pull the proper one from Peter Rosin's mux tree. Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-mux.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/i2c-mux.c b/drivers/i2c/i2c-mux.c index 2178266bca79..83768e85a919 100644 --- a/drivers/i2c/i2c-mux.c +++ b/drivers/i2c/i2c-mux.c @@ -429,7 +429,6 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) while (muxc->num_adapters) { struct i2c_adapter *adap = muxc->adapter[--muxc->num_adapters]; struct i2c_mux_priv *priv = adap->algo_data; - struct device_node *np = adap->dev.of_node; muxc->adapter[muxc->num_adapters] = NULL; @@ -439,7 +438,6 @@ void i2c_mux_del_adapters(struct i2c_mux_core *muxc) sysfs_remove_link(&priv->adap.dev.kobj, "mux_device"); i2c_del_adapter(adap); - of_node_put(np); kfree(priv); } } -- cgit From 806dbb20efde821910b5f747befed794077a9109 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Thu, 9 Mar 2017 16:41:48 +0100 Subject: Revert "i2c: copy device properties when using i2c_register_board_info()" This reverts commit b0c1e95ab44feaad8831f2c06a3473c974003b49. It contains a flaw and the next version has more features added which makes me want to move it to the next cycle. Signed-off-by: Wolfram Sang --- drivers/i2c/i2c-boardinfo.c | 10 ---------- 1 file changed, 10 deletions(-) (limited to 'drivers') diff --git a/drivers/i2c/i2c-boardinfo.c b/drivers/i2c/i2c-boardinfo.c index 5b8f6c3a6950..6e5fac6a5262 100644 --- a/drivers/i2c/i2c-boardinfo.c +++ b/drivers/i2c/i2c-boardinfo.c @@ -15,7 +15,6 @@ #include #include #include -#include #include #include @@ -56,7 +55,6 @@ EXPORT_SYMBOL_GPL(__i2c_first_dynamic_bus_num); * * The board info passed can safely be __initdata, but be careful of embedded * pointers (for platform_data, functions, etc) since that won't be copied. - * Device properties are deep-copied though. */ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsigned len) { @@ -80,14 +78,6 @@ int i2c_register_board_info(int busnum, struct i2c_board_info const *info, unsig devinfo->busnum = busnum; devinfo->board_info = *info; - - if (info->properties) { - devinfo->board_info.properties = - property_entries_dup(info->properties); - if (IS_ERR(devinfo->board_info.properties)) - return PTR_ERR(devinfo->board_info.properties); - } - list_add_tail(&devinfo->list, &__i2c_board_list); } -- cgit From 6022c5cadf1a43ca30f431f128daa6163909ad60 Mon Sep 17 00:00:00 2001 From: Yuantian Tang Date: Thu, 9 Mar 2017 17:13:29 +0800 Subject: ahci: qoriq: correct the sata ecc setting error Sata ecc is controlled by only 1 bit which is 24bit in big-endian in ecc register. So only setting 24bit to disable sata ecc prevents other bits from being overwritten in ecc register. Signed-off-by: Tang Yuantian Signed-off-by: Tejun Heo --- drivers/ata/ahci_qoriq.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/ata/ahci_qoriq.c b/drivers/ata/ahci_qoriq.c index 85d833289f28..4c96f3ac4976 100644 --- a/drivers/ata/ahci_qoriq.c +++ b/drivers/ata/ahci_qoriq.c @@ -177,7 +177,8 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv) case AHCI_LS1043A: if (!qpriv->ecc_addr) return -EINVAL; - writel(ECC_DIS_ARMV8_CH2, qpriv->ecc_addr); + writel(readl(qpriv->ecc_addr) | ECC_DIS_ARMV8_CH2, + qpriv->ecc_addr); writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1); writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS); if (qpriv->is_dmacoherent) @@ -194,7 +195,8 @@ static int ahci_qoriq_phy_init(struct ahci_host_priv *hpriv) case AHCI_LS1046A: if (!qpriv->ecc_addr) return -EINVAL; - writel(ECC_DIS_ARMV8_CH2, qpriv->ecc_addr); + writel(readl(qpriv->ecc_addr) | ECC_DIS_ARMV8_CH2, + qpriv->ecc_addr); writel(AHCI_PORT_PHY_1_CFG, reg_base + PORT_PHY1); writel(AHCI_PORT_TRANS_CFG, reg_base + PORT_TRANS); if (qpriv->is_dmacoherent) -- cgit From 94a631d91ad341b3b4bdac72d1104d9f090e0ca9 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Thu, 9 Mar 2017 15:39:34 +0200 Subject: usb: xhci-mtk: check hcc_params after adding primary hcd hcc_params is set in xhci_gen_setup() called from usb_add_hcd(), so checks the Maximum Primary Stream Array Size in the hcc_params register after adding primary hcd. Signed-off-by: Chunfeng Yun Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mtk.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 9066ec9e0c2e..6ac73a6b4da6 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -678,13 +678,13 @@ static int xhci_mtk_probe(struct platform_device *pdev) goto power_off_phys; } - if (HCC_MAX_PSA(xhci->hcc_params) >= 4) - xhci->shared_hcd->can_do_streams = 1; - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) goto put_usb3_hcd; + if (HCC_MAX_PSA(xhci->hcc_params) >= 4) + xhci->shared_hcd->can_do_streams = 1; + ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) goto dealloc_usb2_hcd; -- cgit From 20e4e37e4a2f1bfd43bcc8c3e666e47665036cc3 Mon Sep 17 00:00:00 2001 From: Chunfeng Yun Date: Thu, 9 Mar 2017 15:39:35 +0200 Subject: usb: xhci: remove dummy extra_priv_size for size of xhci_hcd struct because hcd_priv_size is already size of xhci_hcd struct, extra_priv_size is not needed anymore for MTK and tegra drivers. Signed-off-by: Chunfeng Yun Tested-by: Thierry Reding Acked-by: Thierry Reding Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-mtk.c | 1 - drivers/usb/host/xhci-tegra.c | 1 - 2 files changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-mtk.c b/drivers/usb/host/xhci-mtk.c index 6ac73a6b4da6..67d5dc79b6b5 100644 --- a/drivers/usb/host/xhci-mtk.c +++ b/drivers/usb/host/xhci-mtk.c @@ -382,7 +382,6 @@ static int usb_wakeup_of_property_parse(struct xhci_hcd_mtk *mtk, static int xhci_mtk_setup(struct usb_hcd *hcd); static const struct xhci_driver_overrides xhci_mtk_overrides __initconst = { - .extra_priv_size = sizeof(struct xhci_hcd), .reset = xhci_mtk_setup, }; diff --git a/drivers/usb/host/xhci-tegra.c b/drivers/usb/host/xhci-tegra.c index a59fafb4b329..74436f8ca538 100644 --- a/drivers/usb/host/xhci-tegra.c +++ b/drivers/usb/host/xhci-tegra.c @@ -1308,7 +1308,6 @@ static int tegra_xhci_setup(struct usb_hcd *hcd) } static const struct xhci_driver_overrides tegra_xhci_overrides __initconst = { - .extra_priv_size = sizeof(struct xhci_hcd), .reset = tegra_xhci_setup, }; -- cgit From f95e60a7dbecd2de816bb3ad517b3d4fbc20b507 Mon Sep 17 00:00:00 2001 From: Peter Chen Date: Thu, 9 Mar 2017 15:39:36 +0200 Subject: usb: host: xhci-dbg: HCIVERSION should be a binary number According to xHCI spec, HCIVERSION containing a BCD encoding of the xHCI specification revision number, 0100h corresponds to xHCI version 1.0. Change "100" as "0x100". Cc: Lu Baolu Cc: stable Fixes: 04abb6de2825 ("xhci: Read and parse new xhci 1.1 capability register") Signed-off-by: Peter Chen Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-dbg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-dbg.c b/drivers/usb/host/xhci-dbg.c index 363d125300ea..2b4a00fa735d 100644 --- a/drivers/usb/host/xhci-dbg.c +++ b/drivers/usb/host/xhci-dbg.c @@ -109,7 +109,7 @@ static void xhci_print_cap_regs(struct xhci_hcd *xhci) xhci_dbg(xhci, "RTSOFF 0x%x:\n", temp & RTSOFF_MASK); /* xhci 1.1 controllers have the HCCPARAMS2 register */ - if (hci_version > 100) { + if (hci_version > 0x100) { temp = readl(&xhci->cap_regs->hcc_params2); xhci_dbg(xhci, "HCC PARAMS2 0x%x:\n", (unsigned int) temp); xhci_dbg(xhci, " HC %s Force save context capability", -- cgit From dcc7620cad5ad1326a78f4031a7bf4f0e5b42984 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Thu, 9 Mar 2017 15:39:37 +0200 Subject: usb: host: xhci-plat: Fix timeout on removal of hot pluggable xhci controllers Upstream commit 98d74f9ceaef ("xhci: fix 10 second timeout on removal of PCI hotpluggable xhci controllers") fixes a problem with hot pluggable PCI xhci controllers which can result in excessive timeouts, to the point where the system reports a deadlock. The same problem is seen with hot pluggable xhci controllers using the xhci-plat driver, such as the driver used for Type-C ports on rk3399. Similar to hot-pluggable PCI controllers, the driver for this chip removes the xhci controller from the system when the Type-C cable is disconnected. The solution for PCI devices works just as well for non-PCI devices and avoids the problem. Signed-off-by: Guenter Roeck Cc: stable Signed-off-by: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci-plat.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 6d33b42ffcf5..bd02a6cd8e2c 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -286,6 +286,8 @@ static int xhci_plat_remove(struct platform_device *dev) struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct clk *clk = xhci->clk; + xhci->xhc_state |= XHCI_STATE_REMOVING; + usb_remove_hcd(xhci->shared_hcd); usb_phy_shutdown(hcd->usb_phy); -- cgit From 6d399783e9d4e9bd44931501948059d24ad96ff8 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Thu, 23 Feb 2017 12:26:41 -0800 Subject: md/raid10: submit bio directly to replacement disk Commit 57c67df(md/raid10: submit IO from originating thread instead of md thread) submits bio directly for normal disks but not for replacement disks. There is no point we shouldn't do this for replacement disks. Cc: NeilBrown Signed-off-by: Shaohua Li --- drivers/md/raid10.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 063c43d83b72..1443305613c5 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1477,11 +1477,24 @@ retry_write: mbio->bi_bdev = (void*)rdev; atomic_inc(&r10_bio->remaining); + + cb = blk_check_plugged(raid10_unplug, mddev, + sizeof(*plug)); + if (cb) + plug = container_of(cb, struct raid10_plug_cb, + cb); + else + plug = NULL; spin_lock_irqsave(&conf->device_lock, flags); - bio_list_add(&conf->pending_bio_list, mbio); - conf->pending_count++; + if (plug) { + bio_list_add(&plug->pending, mbio); + plug->pending_cnt++; + } else { + bio_list_add(&conf->pending_bio_list, mbio); + conf->pending_count++; + } spin_unlock_irqrestore(&conf->device_lock, flags); - if (!mddev_check_plugged(mddev)) + if (!plug) md_wakeup_thread(mddev->thread); } } -- cgit From 99b3d74ec05c4a4c57766a90d65b53d78ab06404 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Thu, 23 Feb 2017 12:31:10 -0800 Subject: md: delete dead code Nobody is using mddev_check_plugged(), so delete the dead code Signed-off-by: Shaohua Li --- drivers/md/md.c | 8 -------- drivers/md/md.h | 6 ------ 2 files changed, 14 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 548d1b8014f8..82bd1f3d2b19 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -440,14 +440,6 @@ void md_flush_request(struct mddev *mddev, struct bio *bio) } EXPORT_SYMBOL(md_flush_request); -void md_unplug(struct blk_plug_cb *cb, bool from_schedule) -{ - struct mddev *mddev = cb->data; - md_wakeup_thread(mddev->thread); - kfree(cb); -} -EXPORT_SYMBOL(md_unplug); - static inline struct mddev *mddev_get(struct mddev *mddev) { atomic_inc(&mddev->active); diff --git a/drivers/md/md.h b/drivers/md/md.h index b8859cbf84b6..dde8ecb760c8 100644 --- a/drivers/md/md.h +++ b/drivers/md/md.h @@ -676,16 +676,10 @@ extern void mddev_resume(struct mddev *mddev); extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs, struct mddev *mddev); -extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule); extern void md_reload_sb(struct mddev *mddev, int raid_disk); extern void md_update_sb(struct mddev *mddev, int force); extern void md_kick_rdev_from_array(struct md_rdev * rdev); struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr); -static inline int mddev_check_plugged(struct mddev *mddev) -{ - return !!blk_check_plugged(md_unplug, mddev, - sizeof(struct blk_plug_cb)); -} static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev) { -- cgit From 9c8043f337f14d1743006dfc59c03e80a42e3884 Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Fri, 24 Feb 2017 11:15:12 +0800 Subject: md-cluster: free md_cluster_info if node leave cluster To avoid memory leak, we need to free the cinfo which is allocated when node join cluster. Reviewed-by: NeilBrown Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- drivers/md/md-cluster.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index 2b13117fb918..ba7edcdd09ce 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -974,6 +974,7 @@ static int leave(struct mddev *mddev) lockres_free(cinfo->bitmap_lockres); unlock_all_bitmaps(mddev); dlm_release_lockspace(cinfo->lockspace, 2); + kfree(cinfo); return 0; } -- cgit From 75df023f4f2188c21181996e28234fef9351ef45 Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Fri, 24 Feb 2017 11:15:13 +0800 Subject: md-cluster: remove useless memset from gather_all_resync_info This memset is not needed. The lvb is already zeroed because it was recently allocated by lockres_init, which uses kzalloc(), and read_resync_info() doesn't need it to be zero anyway. Reviewed-by: NeilBrown Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- drivers/md/md-cluster.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c index ba7edcdd09ce..321ecac23027 100644 --- a/drivers/md/md-cluster.c +++ b/drivers/md/md-cluster.c @@ -777,7 +777,6 @@ static int gather_all_resync_info(struct mddev *mddev, int total_slots) bm_lockres->flags |= DLM_LKF_NOQUEUE; ret = dlm_lock_sync(bm_lockres, DLM_LOCK_PW); if (ret == -EAGAIN) { - memset(bm_lockres->lksb.sb_lvbptr, '\0', LVB_SIZE); s = read_resync_info(mddev, bm_lockres); if (s) { pr_info("%s:%d Resync[%llu..%llu] in progress on %d\n", -- cgit From c94836342192b05d599d6aa3397f732f7a238689 Mon Sep 17 00:00:00 2001 From: Guoqing Jiang Date: Fri, 24 Feb 2017 11:15:23 +0800 Subject: md: move funcs from pers->resize to update_size raid1_resize and raid5_resize should also check the mddev->queue if run underneath dm-raid. And both set_capacity and revalidate_disk are used in pers->resize such as raid1, raid10 and raid5. So move them from personality file to common code. Reviewed-by: NeilBrown Signed-off-by: Guoqing Jiang Signed-off-by: Shaohua Li --- drivers/md/md.c | 8 ++++++-- drivers/md/raid1.c | 2 -- drivers/md/raid10.c | 4 ---- drivers/md/raid5.c | 2 -- 4 files changed, 6 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 82bd1f3d2b19..bd15a18485c8 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6525,8 +6525,12 @@ static int update_size(struct mddev *mddev, sector_t num_sectors) return -ENOSPC; } rv = mddev->pers->resize(mddev, num_sectors); - if (!rv) - revalidate_disk(mddev->gendisk); + if (!rv) { + if (mddev->queue) { + set_capacity(mddev->gendisk, mddev->array_sectors); + revalidate_disk(mddev->gendisk); + } + } return rv; } diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index fbc2d7851b49..10c3865e1186 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -3246,8 +3246,6 @@ static int raid1_resize(struct mddev *mddev, sector_t sectors) return ret; } md_set_array_sectors(mddev, newsize); - set_capacity(mddev->gendisk, mddev->array_sectors); - revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp > mddev->dev_sectors) { mddev->recovery_cp = mddev->dev_sectors; diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 1443305613c5..c4db6d1fb6a2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3956,10 +3956,6 @@ static int raid10_resize(struct mddev *mddev, sector_t sectors) return ret; } md_set_array_sectors(mddev, size); - if (mddev->queue) { - set_capacity(mddev->gendisk, mddev->array_sectors); - revalidate_disk(mddev->gendisk); - } if (sectors > mddev->dev_sectors && mddev->recovery_cp > oldsize) { mddev->recovery_cp = oldsize; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 4fb09b3fcb41..6bfedfcf41c1 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -7605,8 +7605,6 @@ static int raid5_resize(struct mddev *mddev, sector_t sectors) return ret; } md_set_array_sectors(mddev, newsize); - set_capacity(mddev->gendisk, mddev->array_sectors); - revalidate_disk(mddev->gendisk); if (sectors > mddev->dev_sectors && mddev->recovery_cp > mddev->dev_sectors) { mddev->recovery_cp = mddev->dev_sectors; -- cgit From 1b3bae49fba52f1ec499c36c53bc07761a9f6c4d Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 1 Mar 2017 07:31:28 +1100 Subject: md: don't impose the MD_SB_DISKS limit on arrays without metadata. These arrays, created with "mdadm --build" don't benefit from a limit. The default will be used, which is '0' and is interpreted as "don't impose a limit". Reported-by: ian_bruce@mail.ru Signed-off-by: NeilBrown Signed-off-by: Shaohua Li --- drivers/md/md.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index bd15a18485c8..cd89ad3c3a0d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6450,11 +6450,10 @@ static int set_array_info(struct mddev *mddev, mdu_array_info_t *info) mddev->layout = info->layout; mddev->chunk_sectors = info->chunk_size >> 9; - mddev->max_disks = MD_SB_DISKS; - if (mddev->persistent) { - mddev->flags = 0; - mddev->sb_flags = 0; + mddev->max_disks = MD_SB_DISKS; + mddev->flags = 0; + mddev->sb_flags = 0; } set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags); -- cgit From 61eb2b43b99ebdc9bc6bc83d9792257b243e7cb3 Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Tue, 28 Feb 2017 13:00:20 -0800 Subject: md/raid1/10: fix potential deadlock Neil Brown pointed out a potential deadlock in raid 10 code with bio_split/chain. The raid1 code could have the same issue, but recent barrier rework makes it less likely to happen. The deadlock happens in below sequence: 1. generic_make_request(bio), this will set current->bio_list 2. raid10_make_request will split bio to bio1 and bio2 3. __make_request(bio1), wait_barrer, add underlayer disk bio to current->bio_list 4. __make_request(bio2), wait_barrer If raise_barrier happens between 3 & 4, since wait_barrier runs at 3, raise_barrier waits for IO completion from 3. And since raise_barrier sets barrier, 4 waits for raise_barrier. But IO from 3 can't be dispatched because raid10_make_request() doesn't finished yet. The solution is to adjust the IO ordering. Quotes from Neil: " It is much safer to: if (need to split) { split = bio_split(bio, ...) bio_chain(...) make_request_fn(split); generic_make_request(bio); } else make_request_fn(mddev, bio); This way we first process the initial section of the bio (in 'split') which will queue some requests to the underlying devices. These requests will be queued in generic_make_request. Then we queue the remainder of the bio, which will be added to the end of the generic_make_request queue. Then we return. generic_make_request() will pop the lower-level device requests off the queue and handle them first. Then it will process the remainder of the original bio once the first section has been fully processed. " Note, this only happens in read path. In write path, the bio is flushed to underlaying disks either by blk flush (from schedule) or offladed to raid1/10d. It's queued in current->bio_list. Cc: Coly Li Cc: stable@vger.kernel.org (v3.14+, only the raid10 part) Suggested-by: NeilBrown Reviewed-by: Jack Wang Signed-off-by: Shaohua Li --- drivers/md/raid1.c | 25 +++++++++++++++++++++++-- drivers/md/raid10.c | 18 ++++++++++++++++++ 2 files changed, 41 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 10c3865e1186..c33e96e33b8e 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1587,9 +1587,30 @@ static void raid1_make_request(struct mddev *mddev, struct bio *bio) split = bio; } - if (bio_data_dir(split) == READ) + if (bio_data_dir(split) == READ) { raid1_read_request(mddev, split); - else + + /* + * If a bio is splitted, the first part of bio will + * pass barrier but the bio is queued in + * current->bio_list (see generic_make_request). If + * there is a raise_barrier() called here, the second + * part of bio can't pass barrier. But since the first + * part bio isn't dispatched to underlaying disks yet, + * the barrier is never released, hence raise_barrier + * will alays wait. We have a deadlock. + * Note, this only happens in read path. For write + * path, the first part of bio is dispatched in a + * schedule() call (because of blk plug) or offloaded + * to raid10d. + * Quitting from the function immediately can change + * the bio order queued in bio_list and avoid the deadlock. + */ + if (split != bio) { + generic_make_request(bio); + break; + } + } else raid1_write_request(mddev, split); } while (split != bio); } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index c4db6d1fb6a2..b1b1f982a722 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1584,7 +1584,25 @@ static void raid10_make_request(struct mddev *mddev, struct bio *bio) split = bio; } + /* + * If a bio is splitted, the first part of bio will pass + * barrier but the bio is queued in current->bio_list (see + * generic_make_request). If there is a raise_barrier() called + * here, the second part of bio can't pass barrier. But since + * the first part bio isn't dispatched to underlaying disks + * yet, the barrier is never released, hence raise_barrier will + * alays wait. We have a deadlock. + * Note, this only happens in read path. For write path, the + * first part of bio is dispatched in a schedule() call + * (because of blk plug) or offloaded to raid10d. + * Quitting from the function immediately can change the bio + * order queued in bio_list and avoid the deadlock. + */ __make_request(mddev, split); + if (split != bio && bio_data_dir(bio) == READ) { + generic_make_request(bio); + break; + } } while (split != bio); /* In case raid10d snuck in to freeze_array */ -- cgit From c2febafc67734a62196c1b9dfba926412d4077ba Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Thu, 9 Mar 2017 17:24:07 +0300 Subject: mm: convert generic code to 5-level paging Convert all non-architecture-specific code to 5-level paging. It's mostly mechanical adding handling one more page table level in places where we deal with pud_t. Signed-off-by: Kirill A. Shutemov Acked-by: Michal Hocko Signed-off-by: Linus Torvalds --- drivers/misc/sgi-gru/grufault.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/misc/sgi-gru/grufault.c b/drivers/misc/sgi-gru/grufault.c index 6fb773dbcd0c..93be82fc338a 100644 --- a/drivers/misc/sgi-gru/grufault.c +++ b/drivers/misc/sgi-gru/grufault.c @@ -219,15 +219,20 @@ static int atomic_pte_lookup(struct vm_area_struct *vma, unsigned long vaddr, int write, unsigned long *paddr, int *pageshift) { pgd_t *pgdp; - pmd_t *pmdp; + p4d_t *p4dp; pud_t *pudp; + pmd_t *pmdp; pte_t pte; pgdp = pgd_offset(vma->vm_mm, vaddr); if (unlikely(pgd_none(*pgdp))) goto err; - pudp = pud_offset(pgdp, vaddr); + p4dp = p4d_offset(pgdp, vaddr); + if (unlikely(p4d_none(*p4dp))) + goto err; + + pudp = pud_offset(p4dp, vaddr); if (unlikely(pud_none(*pudp))) goto err; -- cgit From 67e303e0c7683957eb4e530453705a43a6d4f966 Mon Sep 17 00:00:00 2001 From: VSR Burru Date: Mon, 6 Mar 2017 18:45:59 -0800 Subject: liquidio: improve UDP TX performance Improve UDP TX performance by: * reducing the ring size from 2K to 512 * replacing the numerous streaming DMA allocations for info buffers and gather lists with one large consistent DMA allocation per ring BQL is not effective here. We reduced the ring size because there is heavy overhead with dma_map_single every so often. With iommu=on, dma_map_single in PF Tx data path was taking longer time (~700usec) for every ~250 packets. Debugged intel_iommu code, and found that PF driver is utilizing too many static IO virtual address mapping entries (for gather list entries and info buffers): about 100K entries for two PF's each using 8 rings. Also, finding an empty entry (in rbtree of device domain's iova mapping in kernel) during Tx path becomes a bottleneck every so often; the loop to find the empty entry goes through over 40K iterations; this is too costly and was the major overhead. Overhead is low when this loop quits quickly. Netperf benchmark numbers before and after patch: PF UDP TX +--------+--------+------------+------------+---------+ | | | Before | After | | | Number | | Patch | Patch | | | of | Packet | Throughput | Throughput | Percent | | Flows | Size | (Gbps) | (Gbps) | Change | +--------+--------+------------+------------+---------+ | | 360 | 0.52 | 0.93 | +78.9 | | 1 | 1024 | 1.62 | 2.84 | +75.3 | | | 1518 | 2.44 | 4.21 | +72.5 | +--------+--------+------------+------------+---------+ | | 360 | 0.45 | 1.59 | +253.3 | | 4 | 1024 | 1.34 | 5.48 | +308.9 | | | 1518 | 2.27 | 8.31 | +266.1 | +--------+--------+------------+------------+---------+ | | 360 | 0.40 | 1.61 | +302.5 | | 8 | 1024 | 1.64 | 4.24 | +158.5 | | | 1518 | 2.87 | 6.52 | +127.2 | +--------+--------+------------+------------+---------+ VF UDP TX +--------+--------+------------+------------+---------+ | | | Before | After | | | Number | | Patch | Patch | | | of | Packet | Throughput | Throughput | Percent | | Flows | Size | (Gbps) | (Gbps) | Change | +--------+--------+------------+------------+---------+ | | 360 | 1.28 | 1.49 | +16.4 | | 1 | 1024 | 4.44 | 4.39 | -1.1 | | | 1518 | 6.08 | 6.51 | +7.1 | +--------+--------+------------+------------+---------+ | | 360 | 2.35 | 2.35 | 0.0 | | 4 | 1024 | 6.41 | 8.07 | +25.9 | | | 1518 | 9.56 | 9.54 | -0.2 | +--------+--------+------------+------------+---------+ | | 360 | 3.41 | 3.65 | +7.0 | | 8 | 1024 | 9.35 | 9.34 | -0.1 | | | 1518 | 9.56 | 9.57 | +0.1 | +--------+--------+------------+------------+---------+ Signed-off-by: VSR Burru Signed-off-by: Felix Manlunas Signed-off-by: Derek Chickles Signed-off-by: Raghu Vatsavayi Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/liquidio/lio_main.c | 110 ++++++++++----------- drivers/net/ethernet/cavium/liquidio/lio_vf_main.c | 104 ++++++++++--------- .../net/ethernet/cavium/liquidio/octeon_config.h | 6 +- drivers/net/ethernet/cavium/liquidio/octeon_droq.c | 17 +--- drivers/net/ethernet/cavium/liquidio/octeon_droq.h | 4 +- drivers/net/ethernet/cavium/liquidio/octeon_main.h | 42 -------- .../net/ethernet/cavium/liquidio/octeon_network.h | 43 +++++--- 7 files changed, 144 insertions(+), 182 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c index be9c0e3f5ade..92f46b1375c3 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c @@ -152,7 +152,7 @@ struct octnic_gather { */ struct octeon_sg_entry *sg; - u64 sg_dma_ptr; + dma_addr_t sg_dma_ptr; }; struct handshake { @@ -734,6 +734,9 @@ static void delete_glists(struct lio *lio) struct octnic_gather *g; int i; + kfree(lio->glist_lock); + lio->glist_lock = NULL; + if (!lio->glist) return; @@ -741,23 +744,26 @@ static void delete_glists(struct lio *lio) do { g = (struct octnic_gather *) list_delete_head(&lio->glist[i]); - if (g) { - if (g->sg) { - dma_unmap_single(&lio->oct_dev-> - pci_dev->dev, - g->sg_dma_ptr, - g->sg_size, - DMA_TO_DEVICE); - kfree((void *)((unsigned long)g->sg - - g->adjust)); - } + if (g) kfree(g); - } } while (g); + + if (lio->glists_virt_base && lio->glists_virt_base[i]) { + lio_dma_free(lio->oct_dev, + lio->glist_entry_size * lio->tx_qsize, + lio->glists_virt_base[i], + lio->glists_dma_base[i]); + } } - kfree((void *)lio->glist); - kfree((void *)lio->glist_lock); + kfree(lio->glists_virt_base); + lio->glists_virt_base = NULL; + + kfree(lio->glists_dma_base); + lio->glists_dma_base = NULL; + + kfree(lio->glist); + lio->glist = NULL; } /** @@ -772,13 +778,30 @@ static int setup_glists(struct octeon_device *oct, struct lio *lio, int num_iqs) lio->glist_lock = kcalloc(num_iqs, sizeof(*lio->glist_lock), GFP_KERNEL); if (!lio->glist_lock) - return 1; + return -ENOMEM; lio->glist = kcalloc(num_iqs, sizeof(*lio->glist), GFP_KERNEL); if (!lio->glist) { - kfree((void *)lio->glist_lock); - return 1; + kfree(lio->glist_lock); + lio->glist_lock = NULL; + return -ENOMEM; + } + + lio->glist_entry_size = + ROUNDUP8((ROUNDUP4(OCTNIC_MAX_SG) >> 2) * OCT_SG_ENTRY_SIZE); + + /* allocate memory to store virtual and dma base address of + * per glist consistent memory + */ + lio->glists_virt_base = kcalloc(num_iqs, sizeof(*lio->glists_virt_base), + GFP_KERNEL); + lio->glists_dma_base = kcalloc(num_iqs, sizeof(*lio->glists_dma_base), + GFP_KERNEL); + + if (!lio->glists_virt_base || !lio->glists_dma_base) { + delete_glists(lio); + return -ENOMEM; } for (i = 0; i < num_iqs; i++) { @@ -788,6 +811,16 @@ static int setup_glists(struct octeon_device *oct, struct lio *lio, int num_iqs) INIT_LIST_HEAD(&lio->glist[i]); + lio->glists_virt_base[i] = + lio_dma_alloc(oct, + lio->glist_entry_size * lio->tx_qsize, + &lio->glists_dma_base[i]); + + if (!lio->glists_virt_base[i]) { + delete_glists(lio); + return -ENOMEM; + } + for (j = 0; j < lio->tx_qsize; j++) { g = kzalloc_node(sizeof(*g), GFP_KERNEL, numa_node); @@ -796,43 +829,18 @@ static int setup_glists(struct octeon_device *oct, struct lio *lio, int num_iqs) if (!g) break; - g->sg_size = ((ROUNDUP4(OCTNIC_MAX_SG) >> 2) * - OCT_SG_ENTRY_SIZE); + g->sg = lio->glists_virt_base[i] + + (j * lio->glist_entry_size); - g->sg = kmalloc_node(g->sg_size + 8, - GFP_KERNEL, numa_node); - if (!g->sg) - g->sg = kmalloc(g->sg_size + 8, GFP_KERNEL); - if (!g->sg) { - kfree(g); - break; - } - - /* The gather component should be aligned on 64-bit - * boundary - */ - if (((unsigned long)g->sg) & 7) { - g->adjust = 8 - (((unsigned long)g->sg) & 7); - g->sg = (struct octeon_sg_entry *) - ((unsigned long)g->sg + g->adjust); - } - g->sg_dma_ptr = dma_map_single(&oct->pci_dev->dev, - g->sg, g->sg_size, - DMA_TO_DEVICE); - if (dma_mapping_error(&oct->pci_dev->dev, - g->sg_dma_ptr)) { - kfree((void *)((unsigned long)g->sg - - g->adjust)); - kfree(g); - break; - } + g->sg_dma_ptr = lio->glists_dma_base[i] + + (j * lio->glist_entry_size); list_add_tail(&g->list, &lio->glist[i]); } if (j != lio->tx_qsize) { delete_glists(lio); - return 1; + return -ENOMEM; } } @@ -1885,9 +1893,6 @@ static void free_netsgbuf(void *buf) i++; } - dma_sync_single_for_cpu(&lio->oct_dev->pci_dev->dev, - g->sg_dma_ptr, g->sg_size, DMA_TO_DEVICE); - iq = skb_iq(lio, skb); spin_lock(&lio->glist_lock[iq]); list_add_tail(&g->list, &lio->glist[iq]); @@ -1933,9 +1938,6 @@ static void free_netsgbuf_with_resp(void *buf) i++; } - dma_sync_single_for_cpu(&lio->oct_dev->pci_dev->dev, - g->sg_dma_ptr, g->sg_size, DMA_TO_DEVICE); - iq = skb_iq(lio, skb); spin_lock(&lio->glist_lock[iq]); @@ -3273,8 +3275,6 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev) i++; } - dma_sync_single_for_device(&oct->pci_dev->dev, g->sg_dma_ptr, - g->sg_size, DMA_TO_DEVICE); dptr = g->sg_dma_ptr; if (OCTEON_CN23XX_PF(oct)) diff --git a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c index 9d5e03502c76..7b83be4ce1fe 100644 --- a/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c +++ b/drivers/net/ethernet/cavium/liquidio/lio_vf_main.c @@ -108,6 +108,8 @@ struct octnic_gather { * received from the IP layer. */ struct octeon_sg_entry *sg; + + dma_addr_t sg_dma_ptr; }; struct octeon_device_priv { @@ -490,6 +492,9 @@ static void delete_glists(struct lio *lio) struct octnic_gather *g; int i; + kfree(lio->glist_lock); + lio->glist_lock = NULL; + if (!lio->glist) return; @@ -497,17 +502,26 @@ static void delete_glists(struct lio *lio) do { g = (struct octnic_gather *) list_delete_head(&lio->glist[i]); - if (g) { - if (g->sg) - kfree((void *)((unsigned long)g->sg - - g->adjust)); + if (g) kfree(g); - } } while (g); + + if (lio->glists_virt_base && lio->glists_virt_base[i]) { + lio_dma_free(lio->oct_dev, + lio->glist_entry_size * lio->tx_qsize, + lio->glists_virt_base[i], + lio->glists_dma_base[i]); + } } + kfree(lio->glists_virt_base); + lio->glists_virt_base = NULL; + + kfree(lio->glists_dma_base); + lio->glists_dma_base = NULL; + kfree(lio->glist); - kfree(lio->glist_lock); + lio->glist = NULL; } /** @@ -522,13 +536,30 @@ static int setup_glists(struct lio *lio, int num_iqs) lio->glist_lock = kzalloc(sizeof(*lio->glist_lock) * num_iqs, GFP_KERNEL); if (!lio->glist_lock) - return 1; + return -ENOMEM; lio->glist = kzalloc(sizeof(*lio->glist) * num_iqs, GFP_KERNEL); if (!lio->glist) { kfree(lio->glist_lock); - return 1; + lio->glist_lock = NULL; + return -ENOMEM; + } + + lio->glist_entry_size = + ROUNDUP8((ROUNDUP4(OCTNIC_MAX_SG) >> 2) * OCT_SG_ENTRY_SIZE); + + /* allocate memory to store virtual and dma base address of + * per glist consistent memory + */ + lio->glists_virt_base = kcalloc(num_iqs, sizeof(*lio->glists_virt_base), + GFP_KERNEL); + lio->glists_dma_base = kcalloc(num_iqs, sizeof(*lio->glists_dma_base), + GFP_KERNEL); + + if (!lio->glists_virt_base || !lio->glists_dma_base) { + delete_glists(lio); + return -ENOMEM; } for (i = 0; i < num_iqs; i++) { @@ -536,34 +567,33 @@ static int setup_glists(struct lio *lio, int num_iqs) INIT_LIST_HEAD(&lio->glist[i]); + lio->glists_virt_base[i] = + lio_dma_alloc(lio->oct_dev, + lio->glist_entry_size * lio->tx_qsize, + &lio->glists_dma_base[i]); + + if (!lio->glists_virt_base[i]) { + delete_glists(lio); + return -ENOMEM; + } + for (j = 0; j < lio->tx_qsize; j++) { g = kzalloc(sizeof(*g), GFP_KERNEL); if (!g) break; - g->sg_size = ((ROUNDUP4(OCTNIC_MAX_SG) >> 2) * - OCT_SG_ENTRY_SIZE); + g->sg = lio->glists_virt_base[i] + + (j * lio->glist_entry_size); - g->sg = kmalloc(g->sg_size + 8, GFP_KERNEL); - if (!g->sg) { - kfree(g); - break; - } + g->sg_dma_ptr = lio->glists_dma_base[i] + + (j * lio->glist_entry_size); - /* The gather component should be aligned on 64-bit - * boundary - */ - if (((unsigned long)g->sg) & 7) { - g->adjust = 8 - (((unsigned long)g->sg) & 7); - g->sg = (struct octeon_sg_entry *) - ((unsigned long)g->sg + g->adjust); - } list_add_tail(&g->list, &lio->glist[i]); } if (j != lio->tx_qsize) { delete_glists(lio); - return 1; + return -ENOMEM; } } @@ -1324,10 +1354,6 @@ static void free_netsgbuf(void *buf) i++; } - dma_unmap_single(&lio->oct_dev->pci_dev->dev, - finfo->dptr, g->sg_size, - DMA_TO_DEVICE); - iq = skb_iq(lio, skb); spin_lock(&lio->glist_lock[iq]); @@ -1374,10 +1400,6 @@ static void free_netsgbuf_with_resp(void *buf) i++; } - dma_unmap_single(&lio->oct_dev->pci_dev->dev, - finfo->dptr, g->sg_size, - DMA_TO_DEVICE); - iq = skb_iq(lio, skb); spin_lock(&lio->glist_lock[iq]); @@ -2382,23 +2404,7 @@ static int liquidio_xmit(struct sk_buff *skb, struct net_device *netdev) i++; } - dptr = dma_map_single(&oct->pci_dev->dev, - g->sg, g->sg_size, - DMA_TO_DEVICE); - if (dma_mapping_error(&oct->pci_dev->dev, dptr)) { - dev_err(&oct->pci_dev->dev, "%s DMA mapping error 4\n", - __func__); - dma_unmap_single(&oct->pci_dev->dev, g->sg[0].ptr[0], - skb->len - skb->data_len, - DMA_TO_DEVICE); - for (j = 1; j <= frags; j++) { - frag = &skb_shinfo(skb)->frags[j - 1]; - dma_unmap_page(&oct->pci_dev->dev, - g->sg[j >> 2].ptr[j & 3], - frag->size, DMA_TO_DEVICE); - } - return NETDEV_TX_BUSY; - } + dptr = g->sg_dma_ptr; ndata.cmd.cmd3.dptr = dptr; finfo->dptr = dptr; diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_config.h b/drivers/net/ethernet/cavium/liquidio/octeon_config.h index b3dc2e9651a8..d29ebc531151 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_config.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_config.h @@ -71,17 +71,17 @@ #define CN23XX_MAX_RINGS_PER_VF 8 #define CN23XX_MAX_INPUT_QUEUES CN23XX_MAX_RINGS_PER_PF -#define CN23XX_MAX_IQ_DESCRIPTORS 2048 +#define CN23XX_MAX_IQ_DESCRIPTORS 512 #define CN23XX_DB_MIN 1 #define CN23XX_DB_MAX 8 #define CN23XX_DB_TIMEOUT 1 #define CN23XX_MAX_OUTPUT_QUEUES CN23XX_MAX_RINGS_PER_PF -#define CN23XX_MAX_OQ_DESCRIPTORS 2048 +#define CN23XX_MAX_OQ_DESCRIPTORS 512 #define CN23XX_OQ_BUF_SIZE 1536 #define CN23XX_OQ_PKTSPER_INTR 128 /*#define CAVIUM_ONLY_CN23XX_RX_PERF*/ -#define CN23XX_OQ_REFIL_THRESHOLD 128 +#define CN23XX_OQ_REFIL_THRESHOLD 16 #define CN23XX_OQ_INTR_PKT 64 #define CN23XX_OQ_INTR_TIME 100 diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c index 0be87d119a97..79f809479af6 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.c +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.c @@ -155,11 +155,6 @@ octeon_droq_destroy_ring_buffers(struct octeon_device *oct, recv_buffer_destroy(droq->recv_buf_list[i].buffer, pg_info); - if (droq->desc_ring && droq->desc_ring[i].info_ptr) - lio_unmap_ring_info(oct->pci_dev, - (u64)droq-> - desc_ring[i].info_ptr, - OCT_DROQ_INFO_SIZE); droq->recv_buf_list[i].buffer = NULL; } @@ -211,10 +206,7 @@ int octeon_delete_droq(struct octeon_device *oct, u32 q_no) vfree(droq->recv_buf_list); if (droq->info_base_addr) - cnnic_free_aligned_dma(oct->pci_dev, droq->info_list, - droq->info_alloc_size, - droq->info_base_addr, - droq->info_list_dma); + lio_free_info_buffer(oct, droq); if (droq->desc_ring) lio_dma_free(oct, (droq->max_count * OCT_DROQ_DESC_SIZE), @@ -294,12 +286,7 @@ int octeon_init_droq(struct octeon_device *oct, dev_dbg(&oct->pci_dev->dev, "droq[%d]: num_desc: %d\n", q_no, droq->max_count); - droq->info_list = - cnnic_numa_alloc_aligned_dma((droq->max_count * - OCT_DROQ_INFO_SIZE), - &droq->info_alloc_size, - &droq->info_base_addr, - numa_node); + droq->info_list = lio_alloc_info_buffer(oct, droq); if (!droq->info_list) { dev_err(&oct->pci_dev->dev, "Cannot allocate memory for info list.\n"); lio_dma_free(oct, (droq->max_count * OCT_DROQ_DESC_SIZE), diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h index e62074090681..6982c0af5ecc 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_droq.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_droq.h @@ -325,10 +325,10 @@ struct octeon_droq { size_t desc_ring_dma; /** Info ptr list are allocated at this virtual address. */ - size_t info_base_addr; + void *info_base_addr; /** DMA mapped address of the info list */ - size_t info_list_dma; + dma_addr_t info_list_dma; /** Allocated size of info list. */ u32 info_alloc_size; diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_main.h b/drivers/net/ethernet/cavium/liquidio/octeon_main.h index aa36e9ae7676..bed9ef17bc26 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_main.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_main.h @@ -140,48 +140,6 @@ err_release_region: return 1; } -static inline void * -cnnic_numa_alloc_aligned_dma(u32 size, - u32 *alloc_size, - size_t *orig_ptr, - int numa_node) -{ - int retries = 0; - void *ptr = NULL; - -#define OCTEON_MAX_ALLOC_RETRIES 1 - do { - struct page *page = NULL; - - page = alloc_pages_node(numa_node, - GFP_KERNEL, - get_order(size)); - if (!page) - page = alloc_pages(GFP_KERNEL, - get_order(size)); - ptr = (void *)page_address(page); - if ((unsigned long)ptr & 0x07) { - __free_pages(page, get_order(size)); - ptr = NULL; - /* Increment the size required if the first - * attempt failed. - */ - if (!retries) - size += 7; - } - retries++; - } while ((retries <= OCTEON_MAX_ALLOC_RETRIES) && !ptr); - - *alloc_size = size; - *orig_ptr = (unsigned long)ptr; - if ((unsigned long)ptr & 0x07) - ptr = (void *)(((unsigned long)ptr + 7) & ~(7UL)); - return ptr; -} - -#define cnnic_free_aligned_dma(pci_dev, ptr, size, orig_ptr, dma_addr) \ - free_pages(orig_ptr, get_order(size)) - static inline int sleep_cond(wait_queue_head_t *wait_queue, int *condition) { diff --git a/drivers/net/ethernet/cavium/liquidio/octeon_network.h b/drivers/net/ethernet/cavium/liquidio/octeon_network.h index 6bb89419006e..eef2a1e8a7e3 100644 --- a/drivers/net/ethernet/cavium/liquidio/octeon_network.h +++ b/drivers/net/ethernet/cavium/liquidio/octeon_network.h @@ -62,6 +62,9 @@ struct lio { /** Array of gather component linked lists */ struct list_head *glist; + void **glists_virt_base; + dma_addr_t *glists_dma_base; + u32 glist_entry_size; /** Pointer to the NIC properties for the Octeon device this network * interface is associated with. @@ -344,6 +347,29 @@ static inline void tx_buffer_free(void *buffer) #define lio_dma_free(oct, size, virt_addr, dma_addr) \ dma_free_coherent(&(oct)->pci_dev->dev, size, virt_addr, dma_addr) +static inline void * +lio_alloc_info_buffer(struct octeon_device *oct, + struct octeon_droq *droq) +{ + void *virt_ptr; + + virt_ptr = lio_dma_alloc(oct, (droq->max_count * OCT_DROQ_INFO_SIZE), + &droq->info_list_dma); + if (virt_ptr) { + droq->info_alloc_size = droq->max_count * OCT_DROQ_INFO_SIZE; + droq->info_base_addr = virt_ptr; + } + + return virt_ptr; +} + +static inline void lio_free_info_buffer(struct octeon_device *oct, + struct octeon_droq *droq) +{ + lio_dma_free(oct, droq->info_alloc_size, droq->info_base_addr, + droq->info_list_dma); +} + static inline void *get_rbd(struct sk_buff *skb) { @@ -359,22 +385,7 @@ void *get_rbd(struct sk_buff *skb) static inline u64 lio_map_ring_info(struct octeon_droq *droq, u32 i) { - dma_addr_t dma_addr; - struct octeon_device *oct = droq->oct_dev; - - dma_addr = dma_map_single(&oct->pci_dev->dev, &droq->info_list[i], - OCT_DROQ_INFO_SIZE, DMA_FROM_DEVICE); - - WARN_ON(dma_mapping_error(&oct->pci_dev->dev, dma_addr)); - - return (u64)dma_addr; -} - -static inline void -lio_unmap_ring_info(struct pci_dev *pci_dev, - u64 info_ptr, u32 size) -{ - dma_unmap_single(&pci_dev->dev, info_ptr, size, DMA_FROM_DEVICE); + return droq->info_list_dma + (i * sizeof(struct octeon_droq_info)); } static inline u64 -- cgit From 83abb7d7c91f4ac20e47c3089a10bb93b2ea8994 Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Tue, 7 Mar 2017 18:09:08 +0530 Subject: net: thunderx: Fix IOMMU translation faults ACPI support has been added to ARM IOMMU driver in 4.10 kernel and that has resulted in VNIC interfaces throwing translation faults when kernel is booted with ACPI as driver was not using DMA API. This patch fixes the issue by using DMA API which inturn will create translation tables when IOMMU is enabled. Also VNIC doesn't have a seperate receive buffer ring per receive queue, so there is no 1:1 descriptor index matching between CQE_RX and the index in buffer ring from where a buffer has been used for DMA'ing. Unlike other NICs, here it's not possible to maintain dma address to virt address mappings within the driver. This leaves us no other choice but to use IOMMU's IOVA address conversion API to get buffer's virtual address which can be given to network stack for processing. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nic.h | 1 + drivers/net/ethernet/cavium/thunder/nicvf_main.c | 12 +- drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 178 ++++++++++++++++----- drivers/net/ethernet/cavium/thunder/nicvf_queues.h | 4 +- 4 files changed, 156 insertions(+), 39 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h index e739c7153562..2269ff562d95 100644 --- a/drivers/net/ethernet/cavium/thunder/nic.h +++ b/drivers/net/ethernet/cavium/thunder/nic.h @@ -269,6 +269,7 @@ struct nicvf { #define MAX_QUEUES_PER_QSET 8 struct queue_set *qs; struct nicvf_cq_poll *napi[8]; + void *iommu_domain; u8 vf_id; u8 sqs_id; bool sqs_mode; diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c index 6feaa24bcfd4..24017588f531 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "nic_reg.h" #include "nic.h" @@ -525,7 +526,12 @@ static void nicvf_snd_pkt_handler(struct net_device *netdev, /* Get actual TSO descriptors and free them */ tso_sqe = (struct sq_hdr_subdesc *)GET_SQ_DESC(sq, hdr->rsvd2); + nicvf_unmap_sndq_buffers(nic, sq, hdr->rsvd2, + tso_sqe->subdesc_cnt); nicvf_put_sq_desc(sq, tso_sqe->subdesc_cnt + 1); + } else { + nicvf_unmap_sndq_buffers(nic, sq, cqe_tx->sqe_ptr, + hdr->subdesc_cnt); } nicvf_put_sq_desc(sq, hdr->subdesc_cnt + 1); prefetch(skb); @@ -576,6 +582,7 @@ static void nicvf_rcv_pkt_handler(struct net_device *netdev, { struct sk_buff *skb; struct nicvf *nic = netdev_priv(netdev); + struct nicvf *snic = nic; int err = 0; int rq_idx; @@ -592,7 +599,7 @@ static void nicvf_rcv_pkt_handler(struct net_device *netdev, if (err && !cqe_rx->rb_cnt) return; - skb = nicvf_get_rcv_skb(nic, cqe_rx); + skb = nicvf_get_rcv_skb(snic, cqe_rx); if (!skb) { netdev_dbg(nic->netdev, "Packet not received\n"); return; @@ -1643,6 +1650,9 @@ static int nicvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) if (!pass1_silicon(nic->pdev)) nic->hw_tso = true; + /* Get iommu domain for iova to physical addr conversion */ + nic->iommu_domain = iommu_get_domain_for_dev(dev); + pci_read_config_word(nic->pdev, PCI_SUBSYSTEM_ID, &sdevid); if (sdevid == 0xA134) nic->t88 = true; diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index ac0390be3b12..b1962dbd0409 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include @@ -18,6 +19,16 @@ #include "q_struct.h" #include "nicvf_queues.h" +#define NICVF_PAGE_ORDER ((PAGE_SIZE <= 4096) ? PAGE_ALLOC_COSTLY_ORDER : 0) + +static inline u64 nicvf_iova_to_phys(struct nicvf *nic, dma_addr_t dma_addr) +{ + /* Translation is installed only when IOMMU is present */ + if (nic->iommu_domain) + return iommu_iova_to_phys(nic->iommu_domain, dma_addr); + return dma_addr; +} + static void nicvf_get_page(struct nicvf *nic) { if (!nic->rb_pageref || !nic->rb_page) @@ -87,7 +98,7 @@ static void nicvf_free_q_desc_mem(struct nicvf *nic, struct q_desc_mem *dmem) static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, gfp_t gfp, u32 buf_len, u64 **rbuf) { - int order = (PAGE_SIZE <= 4096) ? PAGE_ALLOC_COSTLY_ORDER : 0; + int order = NICVF_PAGE_ORDER; /* Check if request can be accomodated in previous allocated page */ if (nic->rb_page && @@ -97,22 +108,27 @@ static inline int nicvf_alloc_rcv_buffer(struct nicvf *nic, gfp_t gfp, } nicvf_get_page(nic); - nic->rb_page = NULL; /* Allocate a new page */ + nic->rb_page = alloc_pages(gfp | __GFP_COMP | __GFP_NOWARN, + order); if (!nic->rb_page) { - nic->rb_page = alloc_pages(gfp | __GFP_COMP | __GFP_NOWARN, - order); - if (!nic->rb_page) { - this_cpu_inc(nic->pnicvf->drv_stats-> - rcv_buffer_alloc_failures); - return -ENOMEM; - } - nic->rb_page_offset = 0; + this_cpu_inc(nic->pnicvf->drv_stats->rcv_buffer_alloc_failures); + return -ENOMEM; } - + nic->rb_page_offset = 0; ret: - *rbuf = (u64 *)((u64)page_address(nic->rb_page) + nic->rb_page_offset); + /* HW will ensure data coherency, CPU sync not required */ + *rbuf = (u64 *)((u64)dma_map_page_attrs(&nic->pdev->dev, nic->rb_page, + nic->rb_page_offset, buf_len, + DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC)); + if (dma_mapping_error(&nic->pdev->dev, (dma_addr_t)*rbuf)) { + if (!nic->rb_page_offset) + __free_pages(nic->rb_page, order); + nic->rb_page = NULL; + return -ENOMEM; + } nic->rb_page_offset += buf_len; return 0; @@ -158,16 +174,21 @@ static int nicvf_init_rbdr(struct nicvf *nic, struct rbdr *rbdr, rbdr->dma_size = buf_size; rbdr->enable = true; rbdr->thresh = RBDR_THRESH; + rbdr->head = 0; + rbdr->tail = 0; nic->rb_page = NULL; for (idx = 0; idx < ring_len; idx++) { err = nicvf_alloc_rcv_buffer(nic, GFP_KERNEL, RCV_FRAG_LEN, &rbuf); - if (err) + if (err) { + /* To free already allocated and mapped ones */ + rbdr->tail = idx - 1; return err; + } desc = GET_RBDR_DESC(rbdr, idx); - desc->buf_addr = virt_to_phys(rbuf) >> NICVF_RCV_BUF_ALIGN; + desc->buf_addr = (u64)rbuf >> NICVF_RCV_BUF_ALIGN; } nicvf_get_page(nic); @@ -179,7 +200,7 @@ static int nicvf_init_rbdr(struct nicvf *nic, struct rbdr *rbdr, static void nicvf_free_rbdr(struct nicvf *nic, struct rbdr *rbdr) { int head, tail; - u64 buf_addr; + u64 buf_addr, phys_addr; struct rbdr_entry_t *desc; if (!rbdr) @@ -192,18 +213,26 @@ static void nicvf_free_rbdr(struct nicvf *nic, struct rbdr *rbdr) head = rbdr->head; tail = rbdr->tail; - /* Free SKBs */ + /* Release page references */ while (head != tail) { desc = GET_RBDR_DESC(rbdr, head); - buf_addr = desc->buf_addr << NICVF_RCV_BUF_ALIGN; - put_page(virt_to_page(phys_to_virt(buf_addr))); + buf_addr = ((u64)desc->buf_addr) << NICVF_RCV_BUF_ALIGN; + phys_addr = nicvf_iova_to_phys(nic, buf_addr); + dma_unmap_page_attrs(&nic->pdev->dev, buf_addr, RCV_FRAG_LEN, + DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); + if (phys_addr) + put_page(virt_to_page(phys_to_virt(phys_addr))); head++; head &= (rbdr->dmem.q_len - 1); } - /* Free SKB of tail desc */ + /* Release buffer of tail desc */ desc = GET_RBDR_DESC(rbdr, tail); - buf_addr = desc->buf_addr << NICVF_RCV_BUF_ALIGN; - put_page(virt_to_page(phys_to_virt(buf_addr))); + buf_addr = ((u64)desc->buf_addr) << NICVF_RCV_BUF_ALIGN; + phys_addr = nicvf_iova_to_phys(nic, buf_addr); + dma_unmap_page_attrs(&nic->pdev->dev, buf_addr, RCV_FRAG_LEN, + DMA_FROM_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); + if (phys_addr) + put_page(virt_to_page(phys_to_virt(phys_addr))); /* Free RBDR ring */ nicvf_free_q_desc_mem(nic, &rbdr->dmem); @@ -250,7 +279,7 @@ refill: break; desc = GET_RBDR_DESC(rbdr, tail); - desc->buf_addr = virt_to_phys(rbuf) >> NICVF_RCV_BUF_ALIGN; + desc->buf_addr = (u64)rbuf >> NICVF_RCV_BUF_ALIGN; refill_rb_cnt--; new_rb++; } @@ -361,9 +390,29 @@ static int nicvf_init_snd_queue(struct nicvf *nic, return 0; } +void nicvf_unmap_sndq_buffers(struct nicvf *nic, struct snd_queue *sq, + int hdr_sqe, u8 subdesc_cnt) +{ + u8 idx; + struct sq_gather_subdesc *gather; + + /* Unmap DMA mapped skb data buffers */ + for (idx = 0; idx < subdesc_cnt; idx++) { + hdr_sqe++; + hdr_sqe &= (sq->dmem.q_len - 1); + gather = (struct sq_gather_subdesc *)GET_SQ_DESC(sq, hdr_sqe); + /* HW will ensure data coherency, CPU sync not required */ + dma_unmap_page_attrs(&nic->pdev->dev, gather->addr, + gather->size, DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + } +} + static void nicvf_free_snd_queue(struct nicvf *nic, struct snd_queue *sq) { struct sk_buff *skb; + struct sq_hdr_subdesc *hdr; + struct sq_hdr_subdesc *tso_sqe; if (!sq) return; @@ -379,8 +428,22 @@ static void nicvf_free_snd_queue(struct nicvf *nic, struct snd_queue *sq) smp_rmb(); while (sq->head != sq->tail) { skb = (struct sk_buff *)sq->skbuff[sq->head]; - if (skb) - dev_kfree_skb_any(skb); + if (!skb) + goto next; + hdr = (struct sq_hdr_subdesc *)GET_SQ_DESC(sq, sq->head); + /* Check for dummy descriptor used for HW TSO offload on 88xx */ + if (hdr->dont_send) { + /* Get actual TSO descriptors and unmap them */ + tso_sqe = + (struct sq_hdr_subdesc *)GET_SQ_DESC(sq, hdr->rsvd2); + nicvf_unmap_sndq_buffers(nic, sq, hdr->rsvd2, + tso_sqe->subdesc_cnt); + } else { + nicvf_unmap_sndq_buffers(nic, sq, sq->head, + hdr->subdesc_cnt); + } + dev_kfree_skb_any(skb); +next: sq->head++; sq->head &= (sq->dmem.q_len - 1); } @@ -882,6 +945,14 @@ static inline int nicvf_get_sq_desc(struct snd_queue *sq, int desc_cnt) return qentry; } +/* Rollback to previous tail pointer when descriptors not used */ +static inline void nicvf_rollback_sq_desc(struct snd_queue *sq, + int qentry, int desc_cnt) +{ + sq->tail = qentry; + atomic_add(desc_cnt, &sq->free_cnt); +} + /* Free descriptor back to SQ for future use */ void nicvf_put_sq_desc(struct snd_queue *sq, int desc_cnt) { @@ -1207,8 +1278,9 @@ int nicvf_sq_append_skb(struct nicvf *nic, struct snd_queue *sq, struct sk_buff *skb, u8 sq_num) { int i, size; - int subdesc_cnt, tso_sqe = 0; + int subdesc_cnt, hdr_sqe = 0; int qentry; + u64 dma_addr; subdesc_cnt = nicvf_sq_subdesc_required(nic, skb); if (subdesc_cnt > atomic_read(&sq->free_cnt)) @@ -1223,12 +1295,21 @@ int nicvf_sq_append_skb(struct nicvf *nic, struct snd_queue *sq, /* Add SQ header subdesc */ nicvf_sq_add_hdr_subdesc(nic, sq, qentry, subdesc_cnt - 1, skb, skb->len); - tso_sqe = qentry; + hdr_sqe = qentry; /* Add SQ gather subdescs */ qentry = nicvf_get_nxt_sqentry(sq, qentry); size = skb_is_nonlinear(skb) ? skb_headlen(skb) : skb->len; - nicvf_sq_add_gather_subdesc(sq, qentry, size, virt_to_phys(skb->data)); + /* HW will ensure data coherency, CPU sync not required */ + dma_addr = dma_map_page_attrs(&nic->pdev->dev, virt_to_page(skb->data), + offset_in_page(skb->data), size, + DMA_TO_DEVICE, DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(&nic->pdev->dev, dma_addr)) { + nicvf_rollback_sq_desc(sq, qentry, subdesc_cnt); + return 0; + } + + nicvf_sq_add_gather_subdesc(sq, qentry, size, dma_addr); /* Check for scattered buffer */ if (!skb_is_nonlinear(skb)) @@ -1241,15 +1322,26 @@ int nicvf_sq_append_skb(struct nicvf *nic, struct snd_queue *sq, qentry = nicvf_get_nxt_sqentry(sq, qentry); size = skb_frag_size(frag); - nicvf_sq_add_gather_subdesc(sq, qentry, size, - virt_to_phys( - skb_frag_address(frag))); + dma_addr = dma_map_page_attrs(&nic->pdev->dev, + skb_frag_page(frag), + frag->page_offset, size, + DMA_TO_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + if (dma_mapping_error(&nic->pdev->dev, dma_addr)) { + /* Free entire chain of mapped buffers + * here 'i' = frags mapped + above mapped skb->data + */ + nicvf_unmap_sndq_buffers(nic, sq, hdr_sqe, i); + nicvf_rollback_sq_desc(sq, qentry, subdesc_cnt); + return 0; + } + nicvf_sq_add_gather_subdesc(sq, qentry, size, dma_addr); } doorbell: if (nic->t88 && skb_shinfo(skb)->gso_size) { qentry = nicvf_get_nxt_sqentry(sq, qentry); - nicvf_sq_add_cqe_subdesc(sq, qentry, tso_sqe, skb); + nicvf_sq_add_cqe_subdesc(sq, qentry, hdr_sqe, skb); } nicvf_sq_doorbell(nic, skb, sq_num, subdesc_cnt); @@ -1282,6 +1374,7 @@ struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx) int offset; u16 *rb_lens = NULL; u64 *rb_ptrs = NULL; + u64 phys_addr; rb_lens = (void *)cqe_rx + (3 * sizeof(u64)); /* Except 88xx pass1 on all other chips CQE_RX2_S is added to @@ -1296,15 +1389,23 @@ struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx) else rb_ptrs = (void *)cqe_rx + (7 * sizeof(u64)); - netdev_dbg(nic->netdev, "%s rb_cnt %d rb0_ptr %llx rb0_sz %d\n", - __func__, cqe_rx->rb_cnt, cqe_rx->rb0_ptr, cqe_rx->rb0_sz); - for (frag = 0; frag < cqe_rx->rb_cnt; frag++) { payload_len = rb_lens[frag_num(frag)]; + phys_addr = nicvf_iova_to_phys(nic, *rb_ptrs); + if (!phys_addr) { + if (skb) + dev_kfree_skb_any(skb); + return NULL; + } + if (!frag) { /* First fragment */ + dma_unmap_page_attrs(&nic->pdev->dev, + *rb_ptrs - cqe_rx->align_pad, + RCV_FRAG_LEN, DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); skb = nicvf_rb_ptr_to_skb(nic, - *rb_ptrs - cqe_rx->align_pad, + phys_addr - cqe_rx->align_pad, payload_len); if (!skb) return NULL; @@ -1312,8 +1413,11 @@ struct sk_buff *nicvf_get_rcv_skb(struct nicvf *nic, struct cqe_rx_t *cqe_rx) skb_put(skb, payload_len); } else { /* Add fragments */ - page = virt_to_page(phys_to_virt(*rb_ptrs)); - offset = phys_to_virt(*rb_ptrs) - page_address(page); + dma_unmap_page_attrs(&nic->pdev->dev, *rb_ptrs, + RCV_FRAG_LEN, DMA_FROM_DEVICE, + DMA_ATTR_SKIP_CPU_SYNC); + page = virt_to_page(phys_to_virt(phys_addr)); + offset = phys_to_virt(phys_addr) - page_address(page); skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, offset, payload_len, RCV_FRAG_LEN); } diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h index 5cb84da99a2d..10cb4b84625b 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.h +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.h @@ -87,7 +87,7 @@ #define RCV_BUF_COUNT (1ULL << (RBDR_SIZE + 13)) #define MAX_RCV_BUF_COUNT (1ULL << (RBDR_SIZE6 + 13)) #define RBDR_THRESH (RCV_BUF_COUNT / 2) -#define DMA_BUFFER_LEN 2048 /* In multiples of 128bytes */ +#define DMA_BUFFER_LEN 1536 /* In multiples of 128bytes */ #define RCV_FRAG_LEN (SKB_DATA_ALIGN(DMA_BUFFER_LEN + NET_SKB_PAD) + \ SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) @@ -301,6 +301,8 @@ struct queue_set { #define CQ_ERR_MASK (CQ_WR_FULL | CQ_WR_DISABLE | CQ_WR_FAULT) +void nicvf_unmap_sndq_buffers(struct nicvf *nic, struct snd_queue *sq, + int hdr_sqe, u8 subdesc_cnt); void nicvf_config_vlan_stripping(struct nicvf *nic, netdev_features_t features); int nicvf_set_qset_resources(struct nicvf *nic); -- cgit From 18de7ba95f6e5ab150e482618123d92ee2240dc0 Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Tue, 7 Mar 2017 18:09:09 +0530 Subject: net: thunderx: Fix LMAC mode debug prints for QSGMII mode When BGX/LMACs are in QSGMII mode, for some LMACs, mode info is not being printed. This patch will fix that. With changes already done to not do any sort of serdes 2 lane mapping config calculation in kernel driver, we can get rid of this logic. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 6 ------ 1 file changed, 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 4c8e8cf730bb..9b8a53e138e7 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1011,12 +1011,6 @@ static void bgx_print_qlm_mode(struct bgx *bgx, u8 lmacid) dev_info(dev, "%s: 40G_KR4\n", (char *)str); break; case BGX_MODE_QSGMII: - if ((lmacid == 0) && - (bgx_get_lane2sds_cfg(bgx, lmac) != lmacid)) - return; - if ((lmacid == 2) && - (bgx_get_lane2sds_cfg(bgx, lmac) == lmacid)) - return; dev_info(dev, "%s: QSGMII\n", (char *)str); break; case BGX_MODE_RGMII: -- cgit From 78aacb6f6eeea3c581a29b4a50438d0bdf85ad0b Mon Sep 17 00:00:00 2001 From: Sunil Goutham Date: Tue, 7 Mar 2017 18:09:10 +0530 Subject: net: thunderx: Fix invalid mac addresses for node1 interfaces When booted with ACPI, random mac addresses are being assigned to node1 interfaces due to mismatch of bgx_id in BGX driver and ACPI tables. This patch fixes this issue by setting maximum BGX devices per node based on platform/soc instead of a macro. This change will set the bgx_id appropriately. Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 58 ++++++++++++++++++----- drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 1 - 2 files changed, 45 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 9b8a53e138e7..64a1095e4d14 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -123,14 +123,44 @@ static int bgx_poll_reg(struct bgx *bgx, u8 lmac, u64 reg, u64 mask, bool zero) return 1; } +static int max_bgx_per_node; +static void set_max_bgx_per_node(struct pci_dev *pdev) +{ + u16 sdevid; + + if (max_bgx_per_node) + return; + + pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &sdevid); + switch (sdevid) { + case PCI_SUBSYS_DEVID_81XX_BGX: + max_bgx_per_node = MAX_BGX_PER_CN81XX; + break; + case PCI_SUBSYS_DEVID_83XX_BGX: + max_bgx_per_node = MAX_BGX_PER_CN83XX; + break; + case PCI_SUBSYS_DEVID_88XX_BGX: + default: + max_bgx_per_node = MAX_BGX_PER_CN88XX; + break; + } +} + +static struct bgx *get_bgx(int node, int bgx_idx) +{ + int idx = (node * max_bgx_per_node) + bgx_idx; + + return bgx_vnic[idx]; +} + /* Return number of BGX present in HW */ unsigned bgx_get_map(int node) { int i; unsigned map = 0; - for (i = 0; i < MAX_BGX_PER_NODE; i++) { - if (bgx_vnic[(node * MAX_BGX_PER_NODE) + i]) + for (i = 0; i < max_bgx_per_node; i++) { + if (bgx_vnic[(node * max_bgx_per_node) + i]) map |= (1 << i); } @@ -143,7 +173,7 @@ int bgx_get_lmac_count(int node, int bgx_idx) { struct bgx *bgx; - bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + bgx = get_bgx(node, bgx_idx); if (bgx) return bgx->lmac_count; @@ -158,7 +188,7 @@ void bgx_get_lmac_link_state(int node, int bgx_idx, int lmacid, void *status) struct bgx *bgx; struct lmac *lmac; - bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + bgx = get_bgx(node, bgx_idx); if (!bgx) return; @@ -172,7 +202,7 @@ EXPORT_SYMBOL(bgx_get_lmac_link_state); const u8 *bgx_get_lmac_mac(int node, int bgx_idx, int lmacid) { - struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + struct bgx *bgx = get_bgx(node, bgx_idx); if (bgx) return bgx->lmac[lmacid].mac; @@ -183,7 +213,7 @@ EXPORT_SYMBOL(bgx_get_lmac_mac); void bgx_set_lmac_mac(int node, int bgx_idx, int lmacid, const u8 *mac) { - struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + struct bgx *bgx = get_bgx(node, bgx_idx); if (!bgx) return; @@ -194,7 +224,7 @@ EXPORT_SYMBOL(bgx_set_lmac_mac); void bgx_lmac_rx_tx_enable(int node, int bgx_idx, int lmacid, bool enable) { - struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + struct bgx *bgx = get_bgx(node, bgx_idx); struct lmac *lmac; u64 cfg; @@ -217,7 +247,7 @@ EXPORT_SYMBOL(bgx_lmac_rx_tx_enable); void bgx_lmac_get_pfc(int node, int bgx_idx, int lmacid, void *pause) { struct pfc *pfc = (struct pfc *)pause; - struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_CN88XX) + bgx_idx]; + struct bgx *bgx = get_bgx(node, bgx_idx); struct lmac *lmac; u64 cfg; @@ -237,7 +267,7 @@ EXPORT_SYMBOL(bgx_lmac_get_pfc); void bgx_lmac_set_pfc(int node, int bgx_idx, int lmacid, void *pause) { struct pfc *pfc = (struct pfc *)pause; - struct bgx *bgx = bgx_vnic[(node * MAX_BGX_PER_CN88XX) + bgx_idx]; + struct bgx *bgx = get_bgx(node, bgx_idx); struct lmac *lmac; u64 cfg; @@ -369,7 +399,7 @@ u64 bgx_get_rx_stats(int node, int bgx_idx, int lmac, int idx) { struct bgx *bgx; - bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + bgx = get_bgx(node, bgx_idx); if (!bgx) return 0; @@ -383,7 +413,7 @@ u64 bgx_get_tx_stats(int node, int bgx_idx, int lmac, int idx) { struct bgx *bgx; - bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + bgx = get_bgx(node, bgx_idx); if (!bgx) return 0; @@ -411,7 +441,7 @@ void bgx_lmac_internal_loopback(int node, int bgx_idx, struct lmac *lmac; u64 cfg; - bgx = bgx_vnic[(node * MAX_BGX_PER_NODE) + bgx_idx]; + bgx = get_bgx(node, bgx_idx); if (!bgx) return; @@ -1328,11 +1358,13 @@ static int bgx_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_release_regions; } + set_max_bgx_per_node(pdev); + pci_read_config_word(pdev, PCI_DEVICE_ID, &sdevid); if (sdevid != PCI_DEVICE_ID_THUNDER_RGX) { bgx->bgx_id = (pci_resource_start(pdev, PCI_CFG_REG_BAR_NUM) >> 24) & BGX_ID_MASK; - bgx->bgx_id += nic_get_node_id(pdev) * MAX_BGX_PER_NODE; + bgx->bgx_id += nic_get_node_id(pdev) * max_bgx_per_node; bgx->max_lmac = MAX_LMAC_PER_BGX; bgx_vnic[bgx->bgx_id] = bgx; } else { diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index a60f189429bb..c5080f2cead5 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -22,7 +22,6 @@ #define MAX_BGX_PER_CN88XX 2 #define MAX_BGX_PER_CN81XX 3 /* 2 BGXs + 1 RGX */ #define MAX_BGX_PER_CN83XX 4 -#define MAX_BGX_PER_NODE 4 #define MAX_LMAC_PER_BGX 4 #define MAX_BGX_CHANS_PER_LMAC 16 #define MAX_DMAC_PER_LMAC 8 -- cgit From 36fa35d22bffc78c85b5e68adbdd99e914bec764 Mon Sep 17 00:00:00 2001 From: Thanneeru Srinivasulu Date: Tue, 7 Mar 2017 18:09:11 +0530 Subject: net: thunderx: Allow IPv6 frames with zero UDP checksum Do not consider IPv6 frames with zero UDP checksum as frames with bad checksum and drop them. Signed-off-by: Thanneeru Srinivasulu Signed-off-by: Sunil Goutham Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/nicvf_queues.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c index b1962dbd0409..f13289f0d238 100644 --- a/drivers/net/ethernet/cavium/thunder/nicvf_queues.c +++ b/drivers/net/ethernet/cavium/thunder/nicvf_queues.c @@ -622,9 +622,11 @@ static void nicvf_rcv_queue_config(struct nicvf *nic, struct queue_set *qs, nicvf_send_msg_to_pf(nic, &mbx); if (!nic->sqs_mode && (qidx == 0)) { - /* Enable checking L3/L4 length and TCP/UDP checksums */ + /* Enable checking L3/L4 length and TCP/UDP checksums + * Also allow IPv6 pkts with zero UDP checksum. + */ nicvf_queue_reg_write(nic, NIC_QSET_RQ_GEN_CFG, 0, - (BIT(24) | BIT(23) | BIT(21))); + (BIT(24) | BIT(23) | BIT(21) | BIT(20))); nicvf_config_vlan_stripping(nic, nic->netdev->features); } -- cgit From 8aad6f14c09d78862fc04e47214d398add9bb8ce Mon Sep 17 00:00:00 2001 From: "robert.foss@collabora.com" Date: Tue, 7 Mar 2017 11:46:25 -0500 Subject: qed: Fix copy of uninitialized memory In qed_ll2_start_ooo() the ll2_info variable is uninitialized and then passed to qed_ll2_acquire_connection() where it is copied into a new memory space. This shouldn't cause any issue as long as non of the copied memory is every read. But the potential for a bug being introduced by reading this memory is real. Detected by CoverityScan, CID#1399632 ("Uninitialized scalar variable") Signed-off-by: Robert Foss Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_ll2.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c index 9a0b9af10a57..5fb34db377c8 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c @@ -968,7 +968,7 @@ static int qed_ll2_start_ooo(struct qed_dev *cdev, { struct qed_hwfn *hwfn = QED_LEADING_HWFN(cdev); u8 *handle = &hwfn->pf_params.iscsi_pf_params.ll2_ooo_queue_id; - struct qed_ll2_conn ll2_info; + struct qed_ll2_conn ll2_info = { 0 }; int rc; ll2_info.conn_type = QED_LL2_TYPE_ISCSI_OOO; -- cgit From 834e0f8ae4e104fa026ffe5cdee58491f3078403 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 8 Mar 2017 17:40:17 -0500 Subject: drm/amdgpu: validate paramaters in the gem ioctl MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Reject it if there are any invalid flags or domains. Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c index 51d759463384..106cf83c2e6b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c @@ -202,6 +202,27 @@ int amdgpu_gem_create_ioctl(struct drm_device *dev, void *data, bool kernel = false; int r; + /* reject invalid gem flags */ + if (args->in.domain_flags & ~(AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | + AMDGPU_GEM_CREATE_NO_CPU_ACCESS | + AMDGPU_GEM_CREATE_CPU_GTT_USWC | + AMDGPU_GEM_CREATE_VRAM_CLEARED| + AMDGPU_GEM_CREATE_SHADOW | + AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS)) { + r = -EINVAL; + goto error_unlock; + } + /* reject invalid gem domains */ + if (args->in.domains & ~(AMDGPU_GEM_DOMAIN_CPU | + AMDGPU_GEM_DOMAIN_GTT | + AMDGPU_GEM_DOMAIN_VRAM | + AMDGPU_GEM_DOMAIN_GDS | + AMDGPU_GEM_DOMAIN_GWS | + AMDGPU_GEM_DOMAIN_OA)) { + r = -EINVAL; + goto error_unlock; + } + /* create a gem object to contain this object in */ if (args->in.domains & (AMDGPU_GEM_DOMAIN_GDS | AMDGPU_GEM_DOMAIN_GWS | AMDGPU_GEM_DOMAIN_OA)) { -- cgit From a5b11dac1f57c4b327c2d6eccb8fdd01499f9e17 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Wed, 8 Mar 2017 17:23:21 -0500 Subject: drm/amdgpu: bump driver version for some new features MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We added new gem ioctl flags and the new fences ioctl, but forgot to bump the version. Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index 75fc376ba735..f7adbace428a 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -59,9 +59,10 @@ * - 3.7.0 - Add support for VCE clock list packet * - 3.8.0 - Add support raster config init in the kernel * - 3.9.0 - Add support for memory query info about VRAM and GTT. + * - 3.10.0 - Add support for new fences ioctl, new gem ioctl flags */ #define KMS_DRIVER_MAJOR 3 -#define KMS_DRIVER_MINOR 9 +#define KMS_DRIVER_MINOR 10 #define KMS_DRIVER_PATCHLEVEL 0 int amdgpu_vram_limit = 0; -- cgit From 8a1115ff6b6d90cf1066ec3a0c4e51276553eebe Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 9 Mar 2017 16:16:31 -0800 Subject: scripts/spelling.txt: add "disble(d)" pattern and fix typo instances Fix typos and add the following to the scripts/spelling.txt: disble||disable disbled||disabled I kept the TSL2563_INT_DISBLED in /drivers/iio/light/tsl2563.c untouched. The macro is not referenced at all, but this commit is touching only comment blocks just in case. Link: http://lkml.kernel.org/r/1481573103-11329-20-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/crypto/ux500/cryp/cryp.c | 2 +- drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c | 2 +- drivers/hv/channel.c | 2 +- drivers/isdn/hisax/st5481_b.c | 2 +- drivers/mtd/spi-nor/spi-nor.c | 2 +- drivers/net/ethernet/qlogic/qlge/qlge.h | 2 +- drivers/scsi/aic7xxx/aic79xx_core.c | 2 +- drivers/usb/gadget/legacy/inode.c | 3 +-- drivers/usb/host/xhci.c | 4 ++-- 9 files changed, 10 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/ux500/cryp/cryp.c b/drivers/crypto/ux500/cryp/cryp.c index 43a0c8a26ab0..00a16ab601cb 100644 --- a/drivers/crypto/ux500/cryp/cryp.c +++ b/drivers/crypto/ux500/cryp/cryp.c @@ -82,7 +82,7 @@ void cryp_activity(struct cryp_device_data *device_data, void cryp_flush_inoutfifo(struct cryp_device_data *device_data) { /* - * We always need to disble the hardware before trying to flush the + * We always need to disable the hardware before trying to flush the * FIFO. This is something that isn't written in the design * specification, but we have been informed by the hardware designers * that this must be done. diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c index 31375bdde6f1..011800f621c6 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v3_0.c @@ -788,7 +788,7 @@ static int sdma_v3_0_start(struct amdgpu_device *adev) } } - /* disble sdma engine before programing it */ + /* disable sdma engine before programing it */ sdma_v3_0_ctx_switch_enable(adev, false); sdma_v3_0_enable(adev, false); diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c index 81a80c82f1bd..bd0d1988feb2 100644 --- a/drivers/hv/channel.c +++ b/drivers/hv/channel.c @@ -543,7 +543,7 @@ static int vmbus_close_internal(struct vmbus_channel *channel) /* * In case a device driver's probe() fails (e.g., * util_probe() -> vmbus_open() returns -ENOMEM) and the device is - * rescinded later (e.g., we dynamically disble an Integrated Service + * rescinded later (e.g., we dynamically disable an Integrated Service * in Hyper-V Manager), the driver's remove() invokes vmbus_close(): * here we should skip most of the below cleanup work. */ diff --git a/drivers/isdn/hisax/st5481_b.c b/drivers/isdn/hisax/st5481_b.c index 409849165838..f64a36007800 100644 --- a/drivers/isdn/hisax/st5481_b.c +++ b/drivers/isdn/hisax/st5481_b.c @@ -239,7 +239,7 @@ static void st5481B_mode(struct st5481_bcs *bcs, int mode) } } } else { - // Disble B channel interrupts + // Disable B channel interrupts st5481_usb_device_ctrl_msg(adapter, FFMSK_B1+(bcs->channel * 2), 0, NULL, NULL); // Disable B channel FIFOs diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 1ae872bfc3ba..747645c74134 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -186,7 +186,7 @@ static inline int write_enable(struct spi_nor *nor) } /* - * Send write disble instruction to the chip. + * Send write disable instruction to the chip. */ static inline int write_disable(struct spi_nor *nor) { diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h index 6d31f92ef2b6..90b3b46f85cc 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge.h +++ b/drivers/net/ethernet/qlogic/qlge/qlge.h @@ -1163,7 +1163,7 @@ struct ib_mac_iocb_rsp { u8 opcode; /* 0x20 */ u8 flags1; #define IB_MAC_IOCB_RSP_OI 0x01 /* Overide intr delay */ -#define IB_MAC_IOCB_RSP_I 0x02 /* Disble Intr Generation */ +#define IB_MAC_IOCB_RSP_I 0x02 /* Disable Intr Generation */ #define IB_MAC_CSUM_ERR_MASK 0x1c /* A mask to use for csum errs */ #define IB_MAC_IOCB_RSP_TE 0x04 /* Checksum error */ #define IB_MAC_IOCB_RSP_NU 0x08 /* No checksum rcvd */ diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c index 109e2c99e6c1..95d8f25cbcca 100644 --- a/drivers/scsi/aic7xxx/aic79xx_core.c +++ b/drivers/scsi/aic7xxx/aic79xx_core.c @@ -6278,7 +6278,7 @@ ahd_reset(struct ahd_softc *ahd, int reinit) * does not disable its parity logic prior to * the start of the reset. This may cause a * parity error to be detected and thus a - * spurious SERR or PERR assertion. Disble + * spurious SERR or PERR assertion. Disable * PERR and SERR responses during the CHIPRST. */ mod_cmd = cmd & ~(PCIM_CMD_PERRESPEN|PCIM_CMD_SERRESPEN); diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index a2615d64d07c..79a2d8fba6b6 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -84,8 +84,7 @@ static int ep_open(struct inode *, struct file *); /* /dev/gadget/$CHIP represents ep0 and the whole device */ enum ep0_state { - /* DISBLED is the initial state. - */ + /* DISABLED is the initial state. */ STATE_DEV_DISABLED = 0, /* Only one open() of /dev/gadget/$CHIP; only one file tracks diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 6d6c46000e56..50aee8b7718b 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -868,7 +868,7 @@ static void xhci_disable_port_wake_on_bits(struct xhci_hcd *xhci) spin_lock_irqsave(&xhci->lock, flags); - /* disble usb3 ports Wake bits*/ + /* disable usb3 ports Wake bits */ port_index = xhci->num_usb3_ports; port_array = xhci->usb3_ports; while (port_index--) { @@ -879,7 +879,7 @@ static void xhci_disable_port_wake_on_bits(struct xhci_hcd *xhci) writel(t2, port_array[port_index]); } - /* disble usb2 ports Wake bits*/ + /* disable usb2 ports Wake bits */ port_index = xhci->num_usb2_ports; port_array = xhci->usb2_ports; while (port_index--) { -- cgit From 505d3085d7120a9f4cd0d6ffaa876968854b3baa Mon Sep 17 00:00:00 2001 From: Masahiro Yamada Date: Thu, 9 Mar 2017 16:16:33 -0800 Subject: scripts/spelling.txt: add "overide" pattern and fix typo instances Fix typos and add the following to the scripts/spelling.txt: overide||override While we are here, fix the doubled "address" in the touched line Documentation/devicetree/bindings/regulator/ti-abb-regulator.txt. Also, fix the comment block style in the touched hunks in drivers/media/dvb-frontends/drx39xyj/drx_driver.h. Link: http://lkml.kernel.org/r/1481573103-11329-21-git-send-email-yamada.masahiro@socionext.com Signed-off-by: Masahiro Yamada Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/paride/pcd.c | 2 +- drivers/block/paride/pd.c | 2 +- drivers/block/paride/pf.c | 2 +- drivers/block/paride/pg.c | 2 +- drivers/block/paride/pt.c | 2 +- drivers/media/dvb-frontends/drx39xyj/drx_driver.h | 8 +++----- drivers/net/ethernet/qlogic/qlge/qlge.h | 2 +- 7 files changed, 9 insertions(+), 11 deletions(-) (limited to 'drivers') diff --git a/drivers/block/paride/pcd.c b/drivers/block/paride/pcd.c index 10aed84244f5..939641d6e262 100644 --- a/drivers/block/paride/pcd.c +++ b/drivers/block/paride/pcd.c @@ -50,7 +50,7 @@ the slower the port i/o. In some cases, setting this to zero will speed up the device. (default -1) - major You may use this parameter to overide the + major You may use this parameter to override the default major number (46) that this driver will use. Be sure to change the device name as well. diff --git a/drivers/block/paride/pd.c b/drivers/block/paride/pd.c index 644ba0888bd4..9cfd2e06a649 100644 --- a/drivers/block/paride/pd.c +++ b/drivers/block/paride/pd.c @@ -61,7 +61,7 @@ first drive found. - major You may use this parameter to overide the + major You may use this parameter to override the default major number (45) that this driver will use. Be sure to change the device name as well. diff --git a/drivers/block/paride/pf.c b/drivers/block/paride/pf.c index ed93e8badf56..14c5d32f5d8b 100644 --- a/drivers/block/paride/pf.c +++ b/drivers/block/paride/pf.c @@ -59,7 +59,7 @@ the slower the port i/o. In some cases, setting this to zero will speed up the device. (default -1) - major You may use this parameter to overide the + major You may use this parameter to override the default major number (47) that this driver will use. Be sure to change the device name as well. diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index 5db955fe3a94..3b5882bfb736 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -84,7 +84,7 @@ the slower the port i/o. In some cases, setting this to zero will speed up the device. (default -1) - major You may use this parameter to overide the + major You may use this parameter to override the default major number (97) that this driver will use. Be sure to change the device name as well. diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 61fc6824299a..e815312a00ad 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -61,7 +61,7 @@ the slower the port i/o. In some cases, setting this to zero will speed up the device. (default -1) - major You may use this parameter to overide the + major You may use this parameter to override the default major number (96) that this driver will use. Be sure to change the device name as well. diff --git a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h index 7a681d8202c7..4442e478db72 100644 --- a/drivers/media/dvb-frontends/drx39xyj/drx_driver.h +++ b/drivers/media/dvb-frontends/drx39xyj/drx_driver.h @@ -256,8 +256,7 @@ int drxbsp_tuner_default_i2c_write_read(struct tuner_instance *tuner, * * The actual DAP implementation may be restricted to only one of the modes. * A compiler warning or error will be generated if the DAP implementation -* overides or cannot handle the mode defined below. -* +* overrides or cannot handle the mode defined below. */ #ifndef DRXDAP_SINGLE_MASTER #define DRXDAP_SINGLE_MASTER 1 @@ -272,7 +271,7 @@ int drxbsp_tuner_default_i2c_write_read(struct tuner_instance *tuner, * * This maximum size may be restricted by the actual DAP implementation. * A compiler warning or error will be generated if the DAP implementation -* overides or cannot handle the chunksize defined below. +* overrides or cannot handle the chunksize defined below. * * Beware that the DAP uses DRXDAP_MAX_WCHUNKSIZE to create a temporary data * buffer. Do not undefine or choose too large, unless your system is able to @@ -292,8 +291,7 @@ int drxbsp_tuner_default_i2c_write_read(struct tuner_instance *tuner, * * This maximum size may be restricted by the actual DAP implementation. * A compiler warning or error will be generated if the DAP implementation -* overides or cannot handle the chunksize defined below. -* +* overrides or cannot handle the chunksize defined below. */ #ifndef DRXDAP_MAX_RCHUNKSIZE #define DRXDAP_MAX_RCHUNKSIZE 60 diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h index 90b3b46f85cc..84ac50f92c9c 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge.h +++ b/drivers/net/ethernet/qlogic/qlge/qlge.h @@ -1162,7 +1162,7 @@ struct ob_mac_tso_iocb_rsp { struct ib_mac_iocb_rsp { u8 opcode; /* 0x20 */ u8 flags1; -#define IB_MAC_IOCB_RSP_OI 0x01 /* Overide intr delay */ +#define IB_MAC_IOCB_RSP_OI 0x01 /* Override intr delay */ #define IB_MAC_IOCB_RSP_I 0x02 /* Disable Intr Generation */ #define IB_MAC_CSUM_ERR_MASK 0x1c /* A mask to use for csum errs */ #define IB_MAC_IOCB_RSP_TE 0x04 /* Checksum error */ -- cgit From f4b7ac68f438fa8521bbbf421f194ff10b0a7577 Mon Sep 17 00:00:00 2001 From: Masanari Iida Date: Thu, 9 Mar 2017 16:17:03 -0800 Subject: drivers/md/bcache/util.h: remove duplicate inclusion of blkdev.h Link: http://lkml.kernel.org/r/20170226060230.11555-1-standby24x7@gmail.com Signed-off-by: Masanari Iida Acked-by: Coly Li Cc: Kent Overstreet Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/md/bcache/util.h | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h index a126919ed102..5d13930f0f22 100644 --- a/drivers/md/bcache/util.h +++ b/drivers/md/bcache/util.h @@ -4,7 +4,6 @@ #include #include -#include #include #include #include -- cgit From 10f2889ba35aeb251b9945ec4c461af8c124c41f Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Wed, 14 Dec 2016 17:28:41 -0800 Subject: drm: mxsfb: use bus_format to determine LCD bus width The LCD bus width does not need to align with the pixel format. The LCDIF controller automatically converts between pixel formats and bus width by padding or dropping LSBs. The DRM subsystem has the notion of bus_format which allows to determine what bus_formats are supported by the display. Choose the first available or fallback to 24 bit if none are available. Signed-off-by: Stefan Agner Acked-by: Marek Vasut Signed-off-by: Dave Airlie --- drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 34 ++++++++++++++++++++++++++++++++-- drivers/gpu/drm/mxsfb/mxsfb_regs.h | 1 + 2 files changed, 33 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c index e10a4eda4078..259f71b3a76a 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c @@ -65,13 +65,11 @@ static int mxsfb_set_pixel_fmt(struct mxsfb_drm_private *mxsfb) switch (format) { case DRM_FORMAT_RGB565: dev_dbg(drm->dev, "Setting up RGB565 mode\n"); - ctrl |= CTRL_SET_BUS_WIDTH(STMLCDIF_16BIT); ctrl |= CTRL_SET_WORD_LENGTH(0); ctrl1 |= CTRL1_SET_BYTE_PACKAGING(0xf); break; case DRM_FORMAT_XRGB8888: dev_dbg(drm->dev, "Setting up XRGB8888 mode\n"); - ctrl |= CTRL_SET_BUS_WIDTH(STMLCDIF_24BIT); ctrl |= CTRL_SET_WORD_LENGTH(3); /* Do not use packed pixels = one pixel per word instead. */ ctrl1 |= CTRL1_SET_BYTE_PACKAGING(0x7); @@ -87,6 +85,36 @@ static int mxsfb_set_pixel_fmt(struct mxsfb_drm_private *mxsfb) return 0; } +static void mxsfb_set_bus_fmt(struct mxsfb_drm_private *mxsfb) +{ + struct drm_crtc *crtc = &mxsfb->pipe.crtc; + struct drm_device *drm = crtc->dev; + u32 bus_format = MEDIA_BUS_FMT_RGB888_1X24; + u32 reg; + + reg = readl(mxsfb->base + LCDC_CTRL); + + if (mxsfb->connector.display_info.num_bus_formats) + bus_format = mxsfb->connector.display_info.bus_formats[0]; + + reg &= ~CTRL_BUS_WIDTH_MASK; + switch (bus_format) { + case MEDIA_BUS_FMT_RGB565_1X16: + reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_16BIT); + break; + case MEDIA_BUS_FMT_RGB666_1X18: + reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_18BIT); + break; + case MEDIA_BUS_FMT_RGB888_1X24: + reg |= CTRL_SET_BUS_WIDTH(STMLCDIF_24BIT); + break; + default: + dev_err(drm->dev, "Unknown media bus format %d\n", bus_format); + break; + } + writel(reg, mxsfb->base + LCDC_CTRL); +} + static void mxsfb_enable_controller(struct mxsfb_drm_private *mxsfb) { u32 reg; @@ -175,6 +203,8 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb) writel(vdctrl0, mxsfb->base + LCDC_VDCTRL0); + mxsfb_set_bus_fmt(mxsfb); + /* Frame length in lines. */ writel(m->crtc_vtotal, mxsfb->base + LCDC_VDCTRL1); diff --git a/drivers/gpu/drm/mxsfb/mxsfb_regs.h b/drivers/gpu/drm/mxsfb/mxsfb_regs.h index 31d62cd0d3d7..66a6ba9ec533 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_regs.h +++ b/drivers/gpu/drm/mxsfb/mxsfb_regs.h @@ -44,6 +44,7 @@ #define CTRL_DATA_SELECT (1 << 16) #define CTRL_SET_BUS_WIDTH(x) (((x) & 0x3) << 10) #define CTRL_GET_BUS_WIDTH(x) (((x) >> 10) & 0x3) +#define CTRL_BUS_WIDTH_MASK (0x3 << 10) #define CTRL_SET_WORD_LENGTH(x) (((x) & 0x3) << 8) #define CTRL_GET_WORD_LENGTH(x) (((x) >> 8) & 0x3) #define CTRL_MASTER (1 << 5) -- cgit From 53990e416bb7adaa59d045f325a47f31a11b75ee Mon Sep 17 00:00:00 2001 From: Stefan Agner Date: Wed, 14 Dec 2016 12:48:09 -0800 Subject: drm: mxsfb: fix pixel clock polarity The DRM subsystem specifies the pixel clock polarity from a controllers perspective: DRM_BUS_FLAG_PIXDATA_NEGEDGE means the controller drives the data on pixel clocks falling edge. That is the controllers DOTCLK_POL=0 (Default is data launched at negative edge). Also change the data enable logic to be high active by default and only change if explicitly requested via bus_flags. With that defaults are: - Data enable: high active - Pixel clock polarity: controller drives data on negative edge Signed-off-by: Stefan Agner Acked-by: Marek Vasut Signed-off-by: Dave Airlie --- drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c index 259f71b3a76a..165abd227436 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c @@ -196,9 +196,16 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb) vdctrl0 |= VDCTRL0_HSYNC_ACT_HIGH; if (m->flags & DRM_MODE_FLAG_PVSYNC) vdctrl0 |= VDCTRL0_VSYNC_ACT_HIGH; - if (bus_flags & DRM_BUS_FLAG_DE_HIGH) + /* Make sure Data Enable is high active by default */ + if (!(bus_flags & DRM_BUS_FLAG_DE_LOW)) vdctrl0 |= VDCTRL0_ENABLE_ACT_HIGH; - if (bus_flags & DRM_BUS_FLAG_PIXDATA_NEGEDGE) + /* + * DRM_BUS_FLAG_PIXDATA_ defines are controller centric, + * controllers VDCTRL0_DOTCLK is display centric. + * Drive on positive edge -> display samples on falling edge + * DRM_BUS_FLAG_PIXDATA_POSEDGE -> VDCTRL0_DOTCLK_ACT_FALLING + */ + if (bus_flags & DRM_BUS_FLAG_PIXDATA_POSEDGE) vdctrl0 |= VDCTRL0_DOTCLK_ACT_FALLING; writel(vdctrl0, mxsfb->base + LCDC_VDCTRL0); -- cgit From 7ad7a5acfb96215216f46b9848bd2d341663358f Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Sat, 28 Jan 2017 18:01:57 +0100 Subject: drm: mxsfb: Fix crash when provided invalid DT bindings The mxsfb driver will crash if the mxsfb DT node has a subnode, but the content of the subnode is not of-graph binding with an endpoint linking to panel. The crash was triggered by providing old-style panel bindings to the mxsfb driver instead of the new of-graph ones. The problem happens in mxsfb_create_output(), which is invoked from mxsfb_load(). The mxsfb_create_output() iterates over all mxsfb DT subnode endpoints and tries to bind a panel on each endpoint. If there is any problem binding the panel, that is, mxsfb->panel == NULL, this function will return an error code, otherwise success 0 is returned. If the subnodes do not specify of-graph binding with an endpoint, the iteration over endpoints in mxsfb_create_output() will have zero cycles and the function will immediatelly return 0, but the mxsfb->panel will remain NULL. This is propagated back into the mxsfb_load(), which does not detect any problem and expects that the mxsfb->panel is valid, thus calls mxsfb_panel_attach(). But since mxsfb->panel == NULL, mxsfb_panel_attach() is called with first argument NULL and this crashes the kernel. This patch fixes the problem by explicitly checking for valid mxsfb->panel at the end of the iteration in mxsfb_create_output(). Signed-off-by: Marek Vasut Cc: Daniel Vetter Cc: Dave Airlie Cc: Stefan Agner Cc: Breno Matheus Lima Tested-by: Breno Lima Signed-off-by: Dave Airlie --- drivers/gpu/drm/mxsfb/mxsfb_out.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_out.c b/drivers/gpu/drm/mxsfb/mxsfb_out.c index fa8d17399407..b8e81422d4e2 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_out.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_out.c @@ -112,6 +112,7 @@ static int mxsfb_attach_endpoint(struct drm_device *drm, int mxsfb_create_output(struct drm_device *drm) { + struct mxsfb_drm_private *mxsfb = drm->dev_private; struct device_node *ep_np = NULL; struct of_endpoint ep; int ret; @@ -127,5 +128,8 @@ int mxsfb_create_output(struct drm_device *drm) } } + if (!mxsfb->panel) + return -EPROBE_DEFER; + return 0; } -- cgit From d42986b6c600da4215973878f1c889cdabbdd122 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Thu, 2 Feb 2017 19:26:38 -0200 Subject: drm: mxsfb_crtc: Fix the framebuffer misplacement Currently the framebuffer content is displayed with incorrect offsets in both the vertical and horizontal directions. The fbdev version of the driver does not show this problem. Breno Lima dumped the eLCDIF controller registers on both the drm and fbdev drivers and noticed that the VDCTRL3 register is configured incorrectly in the drm driver. The fbdev driver calculates the vertical and horizontal wait counts of the VDCTRL3 register by doing: back porch + sync length. Looking at the horizontal and vertical timing diagram from include/drm/drm_modes.h this value corresponds to: crtc_[hv]total - crtc_[hv]sync_start So fix the VDCTRL3 register setting accordingly so that the eLCDIF controller can properly show the framebuffer content in the correct position. Reported-by: Breno Lima Signed-off-by: Fabio Estevam Tested-by: Breno Lima Tested-by: Marek Vasut Signed-off-by: Dave Airlie --- drivers/gpu/drm/mxsfb/mxsfb_crtc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c index 165abd227436..1144e0c9e894 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_crtc.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_crtc.c @@ -221,8 +221,8 @@ static void mxsfb_crtc_mode_set_nofb(struct mxsfb_drm_private *mxsfb) VDCTRL2_SET_HSYNC_PERIOD(m->crtc_htotal), mxsfb->base + LCDC_VDCTRL2); - writel(SET_HOR_WAIT_CNT(m->crtc_hblank_end - m->crtc_hsync_end) | - SET_VERT_WAIT_CNT(m->crtc_vblank_end - m->crtc_vsync_end), + writel(SET_HOR_WAIT_CNT(m->crtc_htotal - m->crtc_hsync_start) | + SET_VERT_WAIT_CNT(m->crtc_vtotal - m->crtc_vsync_start), mxsfb->base + LCDC_VDCTRL3); writel(SET_DOTCLK_H_VALID_DATA_CNT(m->hdisplay), -- cgit From 3f81e1340706e9a7f854808e2f580c3106805d0c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 1 Feb 2017 15:19:47 -0200 Subject: drm: mxsfb: Implement drm_panel handling Currently when the 'power-supply' regulator is passed via device tree it does not actually work since drm_panel_prepare()/drm_panel_enable() are never called. Quoting Thierry Reding: "It should really call drm_panel_prepare() and drm_panel_enable() while switching on the display pipeline and drm_panel_disable(), followed by drm_panel_unprepare() while switching off the display pipeline." So do as suggested, so that the 'power-supply' regulator can be functional. Reported-by: Breno Lima Suggested-by: Thierry Reding Signed-off-by: Fabio Estevam Tested-by: Marek Vasut Signed-off-by: Dave Airlie --- drivers/gpu/drm/mxsfb/mxsfb_drv.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/mxsfb/mxsfb_drv.c b/drivers/gpu/drm/mxsfb/mxsfb_drv.c index cdfbe0284635..ff6d6a6f842e 100644 --- a/drivers/gpu/drm/mxsfb/mxsfb_drv.c +++ b/drivers/gpu/drm/mxsfb/mxsfb_drv.c @@ -102,14 +102,18 @@ static void mxsfb_pipe_enable(struct drm_simple_display_pipe *pipe, { struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe); + drm_panel_prepare(mxsfb->panel); mxsfb_crtc_enable(mxsfb); + drm_panel_enable(mxsfb->panel); } static void mxsfb_pipe_disable(struct drm_simple_display_pipe *pipe) { struct mxsfb_drm_private *mxsfb = drm_pipe_to_mxsfb_drm_private(pipe); + drm_panel_disable(mxsfb->panel); mxsfb_crtc_disable(mxsfb); + drm_panel_unprepare(mxsfb->panel); } static void mxsfb_pipe_update(struct drm_simple_display_pipe *pipe, -- cgit From 6cbac9828627b89487144c1e4448d7e0a6ab22ca Mon Sep 17 00:00:00 2001 From: LABBE Corentin Date: Wed, 8 Mar 2017 16:46:57 +0100 Subject: tun: remove copyright printing Printing copyright does not give any useful information on the boot process. Furthermore, the email address printed is obsolete since commit ba57b6f20429 ("MAINTAINERS: fix bouncing tun/tap entries") Signed-off-by: Corentin Labbe Signed-off-by: David S. Miller --- drivers/net/tun.c | 1 - 1 file changed, 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index dc1b1dd9157c..f58b7d850114 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -2570,7 +2570,6 @@ static int __init tun_init(void) int ret = 0; pr_info("%s, %s\n", DRV_DESCRIPTION, DRV_VERSION); - pr_info("%s\n", DRV_COPYRIGHT); ret = rtnl_link_register(&tun_link_ops); if (ret) { -- cgit From 3c2217a675bac22afb149166e0de71809189850d Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 8 Mar 2017 18:44:32 -0500 Subject: bnxt_en: Perform function reset earlier during probe. The firmware call to do function reset is done too late. It is causing the rings that have been reserved to be freed. In NPAR mode, this bug is causing us to run out of rings. Fixes: 391be5c27364 ("bnxt_en: Implement new scheme to reserve tx rings.") Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 235733e91c79..33293ac32779 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -7444,6 +7444,10 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto init_err_pci_clean; + rc = bnxt_hwrm_func_reset(bp); + if (rc) + goto init_err_pci_clean; + bnxt_hwrm_fw_set_time(bp); dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG | @@ -7554,10 +7558,6 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) if (rc) goto init_err_pci_clean; - rc = bnxt_hwrm_func_reset(bp); - if (rc) - goto init_err_pci_clean; - rc = bnxt_init_int_mode(bp); if (rc) goto init_err_pci_clean; -- cgit From b386cd362ffea09d05c56bfa85d104562e860647 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 8 Mar 2017 18:44:33 -0500 Subject: bnxt_en: Call bnxt_ulp_stop() during tx timeout. If we call bnxt_reset_task() due to tx timeout, we should call bnxt_ulp_stop() to inform the RDMA driver about the error and the impending reset. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 33293ac32779..bbe93713e226 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -6495,8 +6495,14 @@ static void bnxt_reset_task(struct bnxt *bp, bool silent) if (!silent) bnxt_dbg_dump_states(bp); if (netif_running(bp->dev)) { + int rc; + + if (!silent) + bnxt_ulp_stop(bp); bnxt_close_nic(bp, false, false); - bnxt_open_nic(bp, false, false); + rc = bnxt_open_nic(bp, false, false); + if (!silent && !rc) + bnxt_ulp_start(bp); } } -- cgit From bc39f885a9c3bdbff0a96ecaf07b162a78eff6e4 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 8 Mar 2017 18:44:34 -0500 Subject: bnxt_en: Check if firmware LLDP agent is running. Set DCB_CAP_DCBX_HOST capability flag only if the firmware LLDP agent is not running. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 4 ++++ drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c | 2 +- 3 files changed, 6 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index bbe93713e226..869d4c97a9e8 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -4465,6 +4465,10 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp) vf->vlan = le16_to_cpu(resp->vlan) & VLAN_VID_MASK; } #endif + if (BNXT_PF(bp) && (le16_to_cpu(resp->flags) & + FUNC_QCFG_RESP_FLAGS_FW_DCBX_AGENT_ENABLED)) + bp->flags |= BNXT_FLAG_FW_LLDP_AGENT; + switch (resp->port_partition_type) { case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_5: diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index faf26a2f726b..c7a5b84a5cb2 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -993,6 +993,7 @@ struct bnxt { BNXT_FLAG_ROCEV2_CAP) #define BNXT_FLAG_NO_AGG_RINGS 0x20000 #define BNXT_FLAG_RX_PAGE_MODE 0x40000 + #define BNXT_FLAG_FW_LLDP_AGENT 0x80000 #define BNXT_FLAG_CHIP_NITRO_A0 0x1000000 #define BNXT_FLAG_ALL_CONFIG_FEATS (BNXT_FLAG_TPA | \ diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c index fdf2d8caf7bf..03532061d211 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_dcb.c @@ -474,7 +474,7 @@ void bnxt_dcb_init(struct bnxt *bp) return; bp->dcbx_cap = DCB_CAP_DCBX_VER_IEEE; - if (BNXT_PF(bp)) + if (BNXT_PF(bp) && !(bp->flags & BNXT_FLAG_FW_LLDP_AGENT)) bp->dcbx_cap |= DCB_CAP_DCBX_HOST; else bp->dcbx_cap |= DCB_CAP_DCBX_LLD_MANAGED; -- cgit From 520ad89a54edea84496695d528f73ddcf4a52ea4 Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 8 Mar 2017 18:44:35 -0500 Subject: bnxt_en: Ignore 0 value in autoneg supported speed from firmware. In some situations, the firmware will return 0 for autoneg supported speed. This may happen if the firmware detects no SFP module, for example. The driver should ignore this so that we don't end up with an invalid autoneg setting with nothing advertised. When SFP module is inserted, we'll get the updated settings from firmware at that time. Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 869d4c97a9e8..32de4589d16a 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -5511,8 +5511,9 @@ static int bnxt_hwrm_phy_qcaps(struct bnxt *bp) bp->lpi_tmr_hi = le32_to_cpu(resp->valid_tx_lpi_timer_high) & PORT_PHY_QCAPS_RESP_TX_LPI_TIMER_HIGH_MASK; } - link_info->support_auto_speeds = - le16_to_cpu(resp->supported_speeds_auto_mode); + if (resp->supported_speeds_auto_mode) + link_info->support_auto_speeds = + le16_to_cpu(resp->supported_speeds_auto_mode); hwrm_phy_qcaps_exit: mutex_unlock(&bp->hwrm_cmd_lock); -- cgit From cdfbabfb2f0ce983fdaa42f20e5f7842178fc01e Mon Sep 17 00:00:00 2001 From: David Howells Date: Thu, 9 Mar 2017 08:09:05 +0000 Subject: net: Work around lockdep limitation in sockets that use sockets Lockdep issues a circular dependency warning when AFS issues an operation through AF_RXRPC from a context in which the VFS/VM holds the mmap_sem. The theory lockdep comes up with is as follows: (1) If the pagefault handler decides it needs to read pages from AFS, it calls AFS with mmap_sem held and AFS begins an AF_RXRPC call, but creating a call requires the socket lock: mmap_sem must be taken before sk_lock-AF_RXRPC (2) afs_open_socket() opens an AF_RXRPC socket and binds it. rxrpc_bind() binds the underlying UDP socket whilst holding its socket lock. inet_bind() takes its own socket lock: sk_lock-AF_RXRPC must be taken before sk_lock-AF_INET (3) Reading from a TCP socket into a userspace buffer might cause a fault and thus cause the kernel to take the mmap_sem, but the TCP socket is locked whilst doing this: sk_lock-AF_INET must be taken before mmap_sem However, lockdep's theory is wrong in this instance because it deals only with lock classes and not individual locks. The AF_INET lock in (2) isn't really equivalent to the AF_INET lock in (3) as the former deals with a socket entirely internal to the kernel that never sees userspace. This is a limitation in the design of lockdep. Fix the general case by: (1) Double up all the locking keys used in sockets so that one set are used if the socket is created by userspace and the other set is used if the socket is created by the kernel. (2) Store the kern parameter passed to sk_alloc() in a variable in the sock struct (sk_kern_sock). This informs sock_lock_init(), sock_init_data() and sk_clone_lock() as to the lock keys to be used. Note that the child created by sk_clone_lock() inherits the parent's kern setting. (3) Add a 'kern' parameter to ->accept() that is analogous to the one passed in to ->create() that distinguishes whether kernel_accept() or sys_accept4() was the caller and can be passed to sk_alloc(). Note that a lot of accept functions merely dequeue an already allocated socket. I haven't touched these as the new socket already exists before we get the parameter. Note also that there are a couple of places where I've made the accepted socket unconditionally kernel-based: irda_accept() rds_rcp_accept_one() tcp_accept_from_sock() because they follow a sock_create_kern() and accept off of that. Whilst creating this, I noticed that lustre and ocfs don't create sockets through sock_create_kern() and thus they aren't marked as for-kernel, though they appear to be internal. I wonder if these should do that so that they use the new set of lock keys. Signed-off-by: David Howells Signed-off-by: David S. Miller --- drivers/staging/lustre/lnet/lnet/lib-socket.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/staging/lustre/lnet/lnet/lib-socket.c b/drivers/staging/lustre/lnet/lnet/lib-socket.c index b7b87ecefcdf..9fca8d225ee0 100644 --- a/drivers/staging/lustre/lnet/lnet/lib-socket.c +++ b/drivers/staging/lustre/lnet/lnet/lib-socket.c @@ -532,7 +532,7 @@ lnet_sock_accept(struct socket **newsockp, struct socket *sock) newsock->ops = sock->ops; - rc = sock->ops->accept(sock, newsock, O_NONBLOCK); + rc = sock->ops->accept(sock, newsock, O_NONBLOCK, false); if (rc == -EAGAIN) { /* Nothing ready, so wait for activity */ init_waitqueue_entry(&wait, current); @@ -540,7 +540,7 @@ lnet_sock_accept(struct socket **newsockp, struct socket *sock) set_current_state(TASK_INTERRUPTIBLE); schedule(); remove_wait_queue(sk_sleep(sock->sk), &wait); - rc = sock->ops->accept(sock, newsock, O_NONBLOCK); + rc = sock->ops->accept(sock, newsock, O_NONBLOCK, false); } if (rc) -- cgit From d7aba644ffdebf756e51e26a2229055211838e89 Mon Sep 17 00:00:00 2001 From: "Lendacky, Thomas" Date: Thu, 9 Mar 2017 17:48:23 -0600 Subject: amd-xgbe: Enable IRQs only if napi_complete_done() is true Depending on the hardware, the amd-xgbe driver may use disable_irq_nosync() and enable_irq() when an interrupt is received to process Rx packets. If the napi_complete_done() return value isn't checked an unbalanced enable for the IRQ could result, generating a warning stack trace. Update the driver to only enable interrupts if napi_complete_done() returns true. Reported-by: Jeremy Linton Signed-off-by: Tom Lendacky Signed-off-by: David S. Miller --- drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index 248f60d171a5..ffea9859f5a7 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -2272,10 +2272,7 @@ static int xgbe_one_poll(struct napi_struct *napi, int budget) processed = xgbe_rx_poll(channel, budget); /* If we processed everything, we are done */ - if (processed < budget) { - /* Turn off polling */ - napi_complete_done(napi, processed); - + if ((processed < budget) && napi_complete_done(napi, processed)) { /* Enable Tx and Rx interrupts */ if (pdata->channel_irq_mode) xgbe_enable_rx_tx_int(pdata, channel); @@ -2317,10 +2314,7 @@ static int xgbe_all_poll(struct napi_struct *napi, int budget) } while ((processed < budget) && (processed != last_processed)); /* If we processed everything, we are done */ - if (processed < budget) { - /* Turn off polling */ - napi_complete_done(napi, processed); - + if ((processed < budget) && napi_complete_done(napi, processed)) { /* Enable Tx and Rx interrupts */ xgbe_enable_rx_tx_ints(pdata); } -- cgit From ffff71328a3c321f7c14cc1edd33577717037744 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:43 -0800 Subject: net: bcmgenet: correct the RBUF_OVFL_CNT and RBUF_ERR_CNT MIB values The location of the RBUF overflow and error counters has moved between different version of the GENET MAC. This commit corrects the driver to read from the correct locations depending on the version of the GENET MAC. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 60 +++++++++++++++++++++++--- drivers/net/ethernet/broadcom/genet/bcmgenet.h | 10 +++-- 2 files changed, 60 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index f92896835d2a..f0fb7eca8eb4 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1,7 +1,7 @@ /* * Broadcom GENET (Gigabit Ethernet) controller driver * - * Copyright (c) 2014 Broadcom Corporation + * Copyright (c) 2014-2017 Broadcom * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -778,8 +778,9 @@ static const struct bcmgenet_stats bcmgenet_gstrings_stats[] = { STAT_GENET_RUNT("rx_runt_bytes", mib.rx_runt_bytes), /* Misc UniMAC counters */ STAT_GENET_MISC("rbuf_ovflow_cnt", mib.rbuf_ovflow_cnt, - UMAC_RBUF_OVFL_CNT), - STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, UMAC_RBUF_ERR_CNT), + UMAC_RBUF_OVFL_CNT_V1), + STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, + UMAC_RBUF_ERR_CNT_V1), STAT_GENET_MISC("mdf_err_cnt", mib.mdf_err_cnt, UMAC_MDF_ERR_CNT), STAT_GENET_SOFT_MIB("alloc_rx_buff_failed", mib.alloc_rx_buff_failed), STAT_GENET_SOFT_MIB("rx_dma_failed", mib.rx_dma_failed), @@ -821,6 +822,45 @@ static void bcmgenet_get_strings(struct net_device *dev, u32 stringset, } } +static u32 bcmgenet_update_stat_misc(struct bcmgenet_priv *priv, u16 offset) +{ + u16 new_offset; + u32 val; + + switch (offset) { + case UMAC_RBUF_OVFL_CNT_V1: + if (GENET_IS_V2(priv)) + new_offset = RBUF_OVFL_CNT_V2; + else + new_offset = RBUF_OVFL_CNT_V3PLUS; + + val = bcmgenet_rbuf_readl(priv, new_offset); + /* clear if overflowed */ + if (val == ~0) + bcmgenet_rbuf_writel(priv, 0, new_offset); + break; + case UMAC_RBUF_ERR_CNT_V1: + if (GENET_IS_V2(priv)) + new_offset = RBUF_ERR_CNT_V2; + else + new_offset = RBUF_ERR_CNT_V3PLUS; + + val = bcmgenet_rbuf_readl(priv, new_offset); + /* clear if overflowed */ + if (val == ~0) + bcmgenet_rbuf_writel(priv, 0, new_offset); + break; + default: + val = bcmgenet_umac_readl(priv, offset); + /* clear if overflowed */ + if (val == ~0) + bcmgenet_umac_writel(priv, 0, offset); + break; + } + + return val; +} + static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv) { int i, j = 0; @@ -845,10 +885,16 @@ static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv) UMAC_MIB_START + j + offset); break; case BCMGENET_STAT_MISC: - val = bcmgenet_umac_readl(priv, s->reg_offset); - /* clear if overflowed */ - if (val == ~0) - bcmgenet_umac_writel(priv, 0, s->reg_offset); + if (GENET_IS_V1(priv)) { + val = bcmgenet_umac_readl(priv, s->reg_offset); + /* clear if overflowed */ + if (val == ~0) + bcmgenet_umac_writel(priv, 0, + s->reg_offset); + } else { + val = bcmgenet_update_stat_misc(priv, + s->reg_offset); + } break; } diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h index 1e2dc34d331a..d5fb0d772dcd 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014 Broadcom Corporation + * Copyright (c) 2014-2017 Broadcom * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -214,7 +214,9 @@ struct bcmgenet_mib_counters { #define MDIO_REG_SHIFT 16 #define MDIO_REG_MASK 0x1F -#define UMAC_RBUF_OVFL_CNT 0x61C +#define UMAC_RBUF_OVFL_CNT_V1 0x61C +#define RBUF_OVFL_CNT_V2 0x80 +#define RBUF_OVFL_CNT_V3PLUS 0x94 #define UMAC_MPD_CTRL 0x620 #define MPD_EN (1 << 0) @@ -224,7 +226,9 @@ struct bcmgenet_mib_counters { #define UMAC_MPD_PW_MS 0x624 #define UMAC_MPD_PW_LS 0x628 -#define UMAC_RBUF_ERR_CNT 0x634 +#define UMAC_RBUF_ERR_CNT_V1 0x634 +#define RBUF_ERR_CNT_V2 0x84 +#define RBUF_ERR_CNT_V3PLUS 0x98 #define UMAC_MDF_ERR_CNT 0x638 #define UMAC_MDF_CTRL 0x650 #define UMAC_MDF_ADDR 0x654 -- cgit From 1ad3d225e5a40ca6c586989b4baaca710544c15a Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:44 -0800 Subject: net: bcmgenet: correct MIB access of UniMAC RUNT counters The gap between the Tx status counters and the Rx RUNT counters is now being added to allow correct reporting of the registers. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index f0fb7eca8eb4..01a172d95328 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -876,13 +876,16 @@ static void bcmgenet_update_mib_counters(struct bcmgenet_priv *priv) case BCMGENET_STAT_NETDEV: case BCMGENET_STAT_SOFT: continue; - case BCMGENET_STAT_MIB_RX: - case BCMGENET_STAT_MIB_TX: case BCMGENET_STAT_RUNT: - if (s->type != BCMGENET_STAT_MIB_RX) - offset = BCMGENET_STAT_OFFSET; + offset += BCMGENET_STAT_OFFSET; + /* fall through */ + case BCMGENET_STAT_MIB_TX: + offset += BCMGENET_STAT_OFFSET; + /* fall through */ + case BCMGENET_STAT_MIB_RX: val = bcmgenet_umac_readl(priv, UMAC_MIB_START + j + offset); + offset = 0; /* Reset Offset */ break; case BCMGENET_STAT_MISC: if (GENET_IS_V1(priv)) { -- cgit From eca4bad73409aedc6ff22f823c18b67a4f08c851 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:45 -0800 Subject: net: bcmgenet: reserved phy revisions must be checked first The reserved gphy_rev value of 0x01ff must be tested before the old or new scheme for GPHY major versioning are tested, otherwise it will be treated as 0xff00 according to the old scheme. Fixes: b04a2f5b9ff5 ("net: bcmgenet: add support for new GENET PHY revision scheme") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 01a172d95328..99f8d9024633 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3226,6 +3226,12 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv) */ gphy_rev = reg & 0xffff; + /* This is reserved so should require special treatment */ + if (gphy_rev == 0 || gphy_rev == 0x01ff) { + pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev); + return; + } + /* This is the good old scheme, just GPHY major, no minor nor patch */ if ((gphy_rev & 0xf0) != 0) priv->gphy_rev = gphy_rev << 8; @@ -3234,12 +3240,6 @@ static void bcmgenet_set_hw_params(struct bcmgenet_priv *priv) else if ((gphy_rev & 0xff00) != 0) priv->gphy_rev = gphy_rev; - /* This is reserved so should require special treatment */ - else if (gphy_rev == 0 || gphy_rev == 0x01ff) { - pr_warn("Invalid GPHY revision detected: 0x%04x\n", gphy_rev); - return; - } - #ifdef CONFIG_PHYS_ADDR_T_64BIT if (!(params->flags & GENET_HAS_40BITS)) pr_warn("GENET does not support 40-bits PA\n"); -- cgit From 7627409cc4970e8c8b9de6945ad86a575290a94e Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:46 -0800 Subject: net: bcmgenet: power down internal phy if open or resume fails Since the internal PHY is powered up during the open and resume functions it should be powered back down if the functions fail. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 99f8d9024633..475dc14931af 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2850,6 +2850,8 @@ err_irq0: err_fini_dma: bcmgenet_fini_dma(priv); err_clk_disable: + if (priv->internal_phy) + bcmgenet_power_down(priv, GENET_POWER_PASSIVE); clk_disable_unprepare(priv->clk); return ret; } @@ -3551,6 +3553,8 @@ static int bcmgenet_resume(struct device *d) return 0; out_clk_disable: + if (priv->internal_phy) + bcmgenet_power_down(priv, GENET_POWER_PASSIVE); clk_disable_unprepare(priv->clk); return ret; } -- cgit From 07c52d6a0b955a8a28834f9354793cfc4b81d0e9 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:47 -0800 Subject: net: bcmgenet: synchronize irq0 status between the isr and task Add a spinlock to ensure that irq0_stat is not unintentionally altered as the result of preemption. Also removed unserviced irq0 interrupts and removed irq1_stat since there is no bottom half service for those interrupts. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 73 ++++++++++++++------------ drivers/net/ethernet/broadcom/genet/bcmgenet.h | 6 ++- 2 files changed, 44 insertions(+), 35 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 475dc14931af..527cecaf12c1 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2506,24 +2506,28 @@ static int bcmgenet_init_dma(struct bcmgenet_priv *priv) /* Interrupt bottom half */ static void bcmgenet_irq_task(struct work_struct *work) { + unsigned long flags; + unsigned int status; struct bcmgenet_priv *priv = container_of( work, struct bcmgenet_priv, bcmgenet_irq_work); netif_dbg(priv, intr, priv->dev, "%s\n", __func__); - if (priv->irq0_stat & UMAC_IRQ_MPD_R) { - priv->irq0_stat &= ~UMAC_IRQ_MPD_R; + spin_lock_irqsave(&priv->lock, flags); + status = priv->irq0_stat; + priv->irq0_stat = 0; + spin_unlock_irqrestore(&priv->lock, flags); + + if (status & UMAC_IRQ_MPD_R) { netif_dbg(priv, wol, priv->dev, "magic packet detected, waking up\n"); bcmgenet_power_up(priv, GENET_POWER_WOL_MAGIC); } /* Link UP/DOWN event */ - if (priv->irq0_stat & UMAC_IRQ_LINK_EVENT) { + if (status & UMAC_IRQ_LINK_EVENT) phy_mac_interrupt(priv->phydev, - !!(priv->irq0_stat & UMAC_IRQ_LINK_UP)); - priv->irq0_stat &= ~UMAC_IRQ_LINK_EVENT; - } + !!(status & UMAC_IRQ_LINK_UP)); } /* bcmgenet_isr1: handle Rx and Tx priority queues */ @@ -2532,22 +2536,21 @@ static irqreturn_t bcmgenet_isr1(int irq, void *dev_id) struct bcmgenet_priv *priv = dev_id; struct bcmgenet_rx_ring *rx_ring; struct bcmgenet_tx_ring *tx_ring; - unsigned int index; + unsigned int index, status; - /* Save irq status for bottom-half processing. */ - priv->irq1_stat = - bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_STAT) & + /* Read irq status */ + status = bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_STAT) & ~bcmgenet_intrl2_1_readl(priv, INTRL2_CPU_MASK_STATUS); /* clear interrupts */ - bcmgenet_intrl2_1_writel(priv, priv->irq1_stat, INTRL2_CPU_CLEAR); + bcmgenet_intrl2_1_writel(priv, status, INTRL2_CPU_CLEAR); netif_dbg(priv, intr, priv->dev, - "%s: IRQ=0x%x\n", __func__, priv->irq1_stat); + "%s: IRQ=0x%x\n", __func__, status); /* Check Rx priority queue interrupts */ for (index = 0; index < priv->hw_params->rx_queues; index++) { - if (!(priv->irq1_stat & BIT(UMAC_IRQ1_RX_INTR_SHIFT + index))) + if (!(status & BIT(UMAC_IRQ1_RX_INTR_SHIFT + index))) continue; rx_ring = &priv->rx_rings[index]; @@ -2560,7 +2563,7 @@ static irqreturn_t bcmgenet_isr1(int irq, void *dev_id) /* Check Tx priority queue interrupts */ for (index = 0; index < priv->hw_params->tx_queues; index++) { - if (!(priv->irq1_stat & BIT(index))) + if (!(status & BIT(index))) continue; tx_ring = &priv->tx_rings[index]; @@ -2580,19 +2583,20 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id) struct bcmgenet_priv *priv = dev_id; struct bcmgenet_rx_ring *rx_ring; struct bcmgenet_tx_ring *tx_ring; + unsigned int status; + unsigned long flags; - /* Save irq status for bottom-half processing. */ - priv->irq0_stat = - bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_STAT) & + /* Read irq status */ + status = bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_STAT) & ~bcmgenet_intrl2_0_readl(priv, INTRL2_CPU_MASK_STATUS); /* clear interrupts */ - bcmgenet_intrl2_0_writel(priv, priv->irq0_stat, INTRL2_CPU_CLEAR); + bcmgenet_intrl2_0_writel(priv, status, INTRL2_CPU_CLEAR); netif_dbg(priv, intr, priv->dev, - "IRQ=0x%x\n", priv->irq0_stat); + "IRQ=0x%x\n", status); - if (priv->irq0_stat & UMAC_IRQ_RXDMA_DONE) { + if (status & UMAC_IRQ_RXDMA_DONE) { rx_ring = &priv->rx_rings[DESC_INDEX]; if (likely(napi_schedule_prep(&rx_ring->napi))) { @@ -2601,7 +2605,7 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id) } } - if (priv->irq0_stat & UMAC_IRQ_TXDMA_DONE) { + if (status & UMAC_IRQ_TXDMA_DONE) { tx_ring = &priv->tx_rings[DESC_INDEX]; if (likely(napi_schedule_prep(&tx_ring->napi))) { @@ -2610,22 +2614,23 @@ static irqreturn_t bcmgenet_isr0(int irq, void *dev_id) } } - if (priv->irq0_stat & (UMAC_IRQ_PHY_DET_R | - UMAC_IRQ_PHY_DET_F | - UMAC_IRQ_LINK_EVENT | - UMAC_IRQ_HFB_SM | - UMAC_IRQ_HFB_MM | - UMAC_IRQ_MPD_R)) { - /* all other interested interrupts handled in bottom half */ - schedule_work(&priv->bcmgenet_irq_work); - } - if ((priv->hw_params->flags & GENET_HAS_MDIO_INTR) && - priv->irq0_stat & (UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR)) { - priv->irq0_stat &= ~(UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR); + status & (UMAC_IRQ_MDIO_DONE | UMAC_IRQ_MDIO_ERROR)) { wake_up(&priv->wq); } + /* all other interested interrupts handled in bottom half */ + status &= (UMAC_IRQ_LINK_EVENT | + UMAC_IRQ_MPD_R); + if (status) { + /* Save irq status for bottom-half processing. */ + spin_lock_irqsave(&priv->lock, flags); + priv->irq0_stat |= status; + spin_unlock_irqrestore(&priv->lock, flags); + + schedule_work(&priv->bcmgenet_irq_work); + } + return IRQ_HANDLED; } @@ -3327,6 +3332,8 @@ static int bcmgenet_probe(struct platform_device *pdev) goto err; } + spin_lock_init(&priv->lock); + SET_NETDEV_DEV(dev, &pdev->dev); dev_set_drvdata(&pdev->dev, dev); ether_addr_copy(dev->dev_addr, macaddr); diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h index d5fb0d772dcd..db7f289d65ae 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h @@ -623,11 +623,13 @@ struct bcmgenet_priv { struct work_struct bcmgenet_irq_work; int irq0; int irq1; - unsigned int irq0_stat; - unsigned int irq1_stat; int wol_irq; bool wol_irq_disabled; + /* shared status */ + spinlock_t lock; + unsigned int irq0_stat; + /* HW descriptors/checksum variables */ bool desc_64b_en; bool desc_rxchk_en; -- cgit From 6be371b053dc86f11465cc1abce2e99bda0a0574 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:48 -0800 Subject: net: bcmgenet: Power up the internal PHY before probing the MII When using the internal PHY it must be powered up when the MII is probed or the PHY will not be detected. Since the PHY is powered up at reset this has not been a problem. However, when the kernel is restarted with kexec the PHY will likely be powered down when the kernel starts so it will not be detected and the Ethernet link will not be established. This commit explicitly powers up the internal PHY when the GENET driver is probed to correct this behavior. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 527cecaf12c1..f93098840775 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3289,6 +3289,7 @@ static int bcmgenet_probe(struct platform_device *pdev) const void *macaddr; struct resource *r; int err = -EIO; + const char *phy_mode_str; /* Up to GENET_MAX_MQ_CNT + 1 TX queues and RX queues */ dev = alloc_etherdev_mqs(sizeof(*priv), GENET_MAX_MQ_CNT + 1, @@ -3396,6 +3397,13 @@ static int bcmgenet_probe(struct platform_device *pdev) priv->clk_eee = NULL; } + /* If this is an internal GPHY, power it on now, before UniMAC is + * brought out of reset as absolutely no UniMAC activity is allowed + */ + if (dn && !of_property_read_string(dn, "phy-mode", &phy_mode_str) && + !strcasecmp(phy_mode_str, "internal")) + bcmgenet_power_up(priv, GENET_POWER_PASSIVE); + err = reset_umac(priv); if (err) goto err_clk_disable; -- cgit From 89316fa34ab8afac8d693f41a5bc268673f1da15 Mon Sep 17 00:00:00 2001 From: Edwin Chan Date: Thu, 9 Mar 2017 16:58:49 -0800 Subject: net: bcmgenet: add begin/complete ethtool ops Make sure clock is enabled for ethtool ops. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Edwin Chan Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index f93098840775..ec1f3014e410 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -450,6 +450,22 @@ static inline void bcmgenet_rdma_ring_writel(struct bcmgenet_priv *priv, genet_dma_ring_regs[r]); } +static int bcmgenet_begin(struct net_device *dev) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + + /* Turn on the clock */ + return clk_prepare_enable(priv->clk); +} + +static void bcmgenet_complete(struct net_device *dev) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + + /* Turn off the clock */ + clk_disable_unprepare(priv->clk); +} + static int bcmgenet_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { @@ -1022,6 +1038,8 @@ static int bcmgenet_set_eee(struct net_device *dev, struct ethtool_eee *e) /* standard ethtool support functions. */ static const struct ethtool_ops bcmgenet_ethtool_ops = { + .begin = bcmgenet_begin, + .complete = bcmgenet_complete, .get_strings = bcmgenet_get_strings, .get_sset_count = bcmgenet_get_sset_count, .get_ethtool_stats = bcmgenet_get_ethtool_stats, -- cgit From 6d22fe14005ce66d1a120495ac16499b944feb95 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Thu, 9 Mar 2017 16:58:50 -0800 Subject: net: bcmgenet: decouple flow control from bcmgenet_tx_reclaim The bcmgenet_tx_reclaim() function is used to reclaim transmit resources in different places within the driver. Most of them should not affect the state of the transmit flow control. This commit relocates the logic for waking tx queues based on freed resources to the napi polling function where it is more appropriate. Fixes: 1c1008c793fa ("net: bcmgenet: add main driver file") Signed-off-by: Doug Berger Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index ec1f3014e410..69015fa50f20 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -1234,7 +1234,6 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev, struct bcmgenet_priv *priv = netdev_priv(dev); struct device *kdev = &priv->pdev->dev; struct enet_cb *tx_cb_ptr; - struct netdev_queue *txq; unsigned int pkts_compl = 0; unsigned int bytes_compl = 0; unsigned int c_index; @@ -1286,13 +1285,8 @@ static unsigned int __bcmgenet_tx_reclaim(struct net_device *dev, dev->stats.tx_packets += pkts_compl; dev->stats.tx_bytes += bytes_compl; - txq = netdev_get_tx_queue(dev, ring->queue); - netdev_tx_completed_queue(txq, pkts_compl, bytes_compl); - - if (ring->free_bds > (MAX_SKB_FRAGS + 1)) { - if (netif_tx_queue_stopped(txq)) - netif_tx_wake_queue(txq); - } + netdev_tx_completed_queue(netdev_get_tx_queue(dev, ring->queue), + pkts_compl, bytes_compl); return pkts_compl; } @@ -1315,8 +1309,16 @@ static int bcmgenet_tx_poll(struct napi_struct *napi, int budget) struct bcmgenet_tx_ring *ring = container_of(napi, struct bcmgenet_tx_ring, napi); unsigned int work_done = 0; + struct netdev_queue *txq; + unsigned long flags; - work_done = bcmgenet_tx_reclaim(ring->priv->dev, ring); + spin_lock_irqsave(&ring->lock, flags); + work_done = __bcmgenet_tx_reclaim(ring->priv->dev, ring); + if (ring->free_bds > (MAX_SKB_FRAGS + 1)) { + txq = netdev_get_tx_queue(ring->priv->dev, ring->queue); + netif_tx_wake_queue(txq); + } + spin_unlock_irqrestore(&ring->lock, flags); if (work_done == 0) { napi_complete(napi); -- cgit From 46f401c4297a2232a037ad8801b6c83c90414cf7 Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Thu, 9 Mar 2017 20:33:51 -0600 Subject: powerpc/pmac: Fix crash in dma-mapping.h with NULL dma_ops Commit 5657933dbb6e ("treewide: Move dma_ops from struct dev_archdata into struct device") introduced a crash for macio devices, an example backtrace being: kernel BUG at ./include/linux/dma-mapping.h:465! Oops: Exception in kernel mode, sig: 5 [#1] ... NIP [c031ddb0] dmam_alloc_coherent+0x74/0x140 LR [c031de70] dmam_alloc_coherent+0x134/0x140 Call Trace: dmam_alloc_coherent+0x134/0x140 (unreliable) pata_macio_port_start+0x3c/0x8c ata_host_start.part.5+0xfc/0x208 ata_host_activate+0x128/0x154 pata_macio_common_init+0x2f0/0x538 pata_macio_attach+0xd8/0x180 macio_device_probe+0x5c/0xec driver_probe_device+0x21c/0x314 __driver_attach+0xcc/0xd0 bus_for_each_dev+0x68/0xb4 bus_add_driver+0x1dc/0x244 driver_register+0x88/0x130 pata_macio_init+0x5c/0x88 do_one_initcall+0x40/0x170 kernel_init_freeable+0x134/0x1d0 kernel_init+0x18/0x110 ret_from_kernel_thread+0x5c/0x64 This was caused by the device having NULL dma_ops, triggering the BUG_ON(). Previously the device inherited its dma_ops via the assignment to dev->ofdev.dev.archdata. However after commit 5657933dbb6e the dma_ops are moved into dev->ofdev.dev, and so they need to be explicitly copied. Fixes: 5657933dbb6e ("treewide: Move dma_ops from struct dev_archdata into struct device") Signed-off-by: Larry Finger Suggested-by: Benjamin Herrenschmidt [mpe: Rewrite change log, add backtrace] Signed-off-by: Michael Ellerman --- drivers/macintosh/macio_asic.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c index 3f041b187033..f757cef293f8 100644 --- a/drivers/macintosh/macio_asic.c +++ b/drivers/macintosh/macio_asic.c @@ -392,6 +392,7 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip, * To get all the fields, copy all archdata */ dev->ofdev.dev.archdata = chip->lbus.pdev->dev.archdata; + dev->ofdev.dev.dma_ops = chip->lbus.pdev->dev.dma_ops; #endif /* CONFIG_PCI */ #ifdef DEBUG -- cgit From 296739839fa2851e6badc77dcfc45050094cb102 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Thu, 9 Mar 2017 20:53:31 +0100 Subject: net: phy: marvell: Fix double free of hwmon device The hwmon temperature sensor devices is registered using a devm_hwmon API call. The marvell_release() would then manually free the device, not using a devm_hmon API, resulting in the device being removed twice, leading to a crash in kernfs_find_ns() during the second removal. Remove the manual removal, which makes marvell_release() empty, so remove it as well. Signed-off-by: Andrew Lunn Fixes: 0b04680fdae4 ("phy: marvell: Add support for temperature sensor") Acked-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/phy/marvell.c | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'drivers') diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index f9d0fa315a47..272b051a0199 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -1883,17 +1883,6 @@ static int m88e1510_probe(struct phy_device *phydev) return m88e1510_hwmon_probe(phydev); } -static void marvell_remove(struct phy_device *phydev) -{ -#ifdef CONFIG_HWMON - - struct marvell_priv *priv = phydev->priv; - - if (priv && priv->hwmon_dev) - hwmon_device_unregister(priv->hwmon_dev); -#endif -} - static struct phy_driver marvell_drivers[] = { { .phy_id = MARVELL_PHY_ID_88E1101, @@ -1974,7 +1963,6 @@ static struct phy_driver marvell_drivers[] = { .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .probe = &m88e1121_probe, - .remove = &marvell_remove, .config_init = &m88e1121_config_init, .config_aneg = &m88e1121_config_aneg, .read_status = &marvell_read_status, @@ -2087,7 +2075,6 @@ static struct phy_driver marvell_drivers[] = { .features = PHY_GBIT_FEATURES | SUPPORTED_FIBRE, .flags = PHY_HAS_INTERRUPT, .probe = &m88e1510_probe, - .remove = &marvell_remove, .config_init = &m88e1510_config_init, .config_aneg = &m88e1510_config_aneg, .read_status = &marvell_read_status, @@ -2109,7 +2096,6 @@ static struct phy_driver marvell_drivers[] = { .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .probe = m88e1510_probe, - .remove = &marvell_remove, .config_init = &marvell_config_init, .config_aneg = &m88e1510_config_aneg, .read_status = &marvell_read_status, @@ -2127,7 +2113,6 @@ static struct phy_driver marvell_drivers[] = { .phy_id_mask = MARVELL_PHY_ID_MASK, .name = "Marvell 88E1545", .probe = m88e1510_probe, - .remove = &marvell_remove, .features = PHY_GBIT_FEATURES, .flags = PHY_HAS_INTERRUPT, .config_init = &marvell_config_init, -- cgit From 9a8b0a230aca55ee142fd76f4765f1da1799da93 Mon Sep 17 00:00:00 2001 From: Mihail Atanassov Date: Wed, 15 Feb 2017 14:00:15 +0000 Subject: drm: mali-dp: Remove mclk rate management The rate of mclk depends on the use-case. If no downscaling is required, then mclk == pxlclk is a valid option; with downscaling however, the rate at which mclk runs determines how much a plane can be downscaled before composition. This is a system integration + power management issue that is more suited to firmware rather than this driver. Signed-off-by: Mihail Atanassov Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_crtc.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/arm/malidp_crtc.c b/drivers/gpu/drm/arm/malidp_crtc.c index 08e6a71f5d05..294b53697334 100644 --- a/drivers/gpu/drm/arm/malidp_crtc.c +++ b/drivers/gpu/drm/arm/malidp_crtc.c @@ -63,8 +63,7 @@ static void malidp_crtc_enable(struct drm_crtc *crtc) clk_prepare_enable(hwdev->pxlclk); - /* mclk needs to be set to the same or higher rate than pxlclk */ - clk_set_rate(hwdev->mclk, crtc->state->adjusted_mode.crtc_clock * 1000); + /* We rely on firmware to set mclk to a sensible level. */ clk_set_rate(hwdev->pxlclk, crtc->state->adjusted_mode.crtc_clock * 1000); hwdev->modeset(hwdev, &vm); -- cgit From d1479f6108006555fe33d7cfe8db4f95ad614b9a Mon Sep 17 00:00:00 2001 From: Mihail Atanassov Date: Thu, 9 Feb 2017 11:32:00 +0000 Subject: drm: mali-dp: Fix smart layer not going to composition Use rectangle 1 as a generic plane. Existing code already sets the smart layer bounding box size + offset. The rectangles' offsets are relative to the bounding box, so there is no need to set R1's offset (reset value is 0), just its size which is the same as the bounding box. Signed-off-by: Mihail Atanassov Signed-off-by: Liviu Dudau --- drivers/gpu/drm/arm/malidp_hw.c | 2 +- drivers/gpu/drm/arm/malidp_planes.c | 18 ++++++++++++++++-- drivers/gpu/drm/arm/malidp_regs.h | 1 + 3 files changed, 18 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/arm/malidp_hw.c b/drivers/gpu/drm/arm/malidp_hw.c index 488aedf5b58d..9f5513006eee 100644 --- a/drivers/gpu/drm/arm/malidp_hw.c +++ b/drivers/gpu/drm/arm/malidp_hw.c @@ -83,7 +83,7 @@ static const struct malidp_layer malidp550_layers[] = { { DE_VIDEO1, MALIDP550_DE_LV1_BASE, MALIDP550_DE_LV1_PTR_BASE, MALIDP_DE_LV_STRIDE0 }, { DE_GRAPHICS1, MALIDP550_DE_LG_BASE, MALIDP550_DE_LG_PTR_BASE, MALIDP_DE_LG_STRIDE }, { DE_VIDEO2, MALIDP550_DE_LV2_BASE, MALIDP550_DE_LV2_PTR_BASE, MALIDP_DE_LV_STRIDE0 }, - { DE_SMART, MALIDP550_DE_LS_BASE, MALIDP550_DE_LS_PTR_BASE, 0 }, + { DE_SMART, MALIDP550_DE_LS_BASE, MALIDP550_DE_LS_PTR_BASE, MALIDP550_DE_LS_R1_STRIDE }, }; #define MALIDP_DE_DEFAULT_PREFETCH_START 5 diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c index 414aada10fe5..d5aec082294c 100644 --- a/drivers/gpu/drm/arm/malidp_planes.c +++ b/drivers/gpu/drm/arm/malidp_planes.c @@ -37,6 +37,8 @@ #define LAYER_V_VAL(x) (((x) & 0x1fff) << 16) #define MALIDP_LAYER_COMP_SIZE 0x010 #define MALIDP_LAYER_OFFSET 0x014 +#define MALIDP550_LS_ENABLE 0x01c +#define MALIDP550_LS_R1_IN_SIZE 0x020 /* * This 4-entry look-up-table is used to determine the full 8-bit alpha value @@ -242,6 +244,11 @@ static void malidp_de_plane_update(struct drm_plane *plane, LAYER_V_VAL(plane->state->crtc_y), mp->layer->base + MALIDP_LAYER_OFFSET); + if (mp->layer->id == DE_SMART) + malidp_hw_write(mp->hwdev, + LAYER_H_VAL(src_w) | LAYER_V_VAL(src_h), + mp->layer->base + MALIDP550_LS_R1_IN_SIZE); + /* first clear the rotation bits */ val = malidp_hw_read(mp->hwdev, mp->layer->base + MALIDP_LAYER_CONTROL); val &= ~LAYER_ROT_MASK; @@ -330,9 +337,16 @@ int malidp_de_planes_init(struct drm_device *drm) plane->hwdev = malidp->dev; plane->layer = &map->layers[i]; - /* Skip the features which the SMART layer doesn't have */ - if (id == DE_SMART) + if (id == DE_SMART) { + /* + * Enable the first rectangle in the SMART layer to be + * able to use it as a drm plane. + */ + malidp_hw_write(malidp->dev, 1, + plane->layer->base + MALIDP550_LS_ENABLE); + /* Skip the features which the SMART layer doesn't have. */ continue; + } drm_plane_create_rotation_property(&plane->base, DRM_ROTATE_0, flags); malidp_hw_write(malidp->dev, MALIDP_ALPHA_LUT, diff --git a/drivers/gpu/drm/arm/malidp_regs.h b/drivers/gpu/drm/arm/malidp_regs.h index aff6d4a84e99..b816067a65c5 100644 --- a/drivers/gpu/drm/arm/malidp_regs.h +++ b/drivers/gpu/drm/arm/malidp_regs.h @@ -84,6 +84,7 @@ /* Stride register offsets relative to Lx_BASE */ #define MALIDP_DE_LG_STRIDE 0x18 #define MALIDP_DE_LV_STRIDE0 0x18 +#define MALIDP550_DE_LS_R1_STRIDE 0x28 /* macros to set values into registers */ #define MALIDP_DE_H_FRONTPORCH(x) (((x) & 0xfff) << 0) -- cgit From af36370569eb37420e1e78a2e60c277b781fcd00 Mon Sep 17 00:00:00 2001 From: Paul Blakey Date: Fri, 10 Mar 2017 14:33:01 +0200 Subject: net/mlx5: Fix create autogroup prev initializer The autogroups list is a list of non overlapping group boundaries sorted by their start index. If the autogroups list wasn't empty and an empty group slot was found at the start of the list, the new group was added to the end of the list instead of the beginning, as the prev initializer was incorrect. When this was repeated, it caused multiple groups to have overlapping boundaries. Fixed that by correctly initializing the prev pointer to the start of the list. Fixes: eccec8da3b4e ('net/mlx5: Keep autogroups list ordered') Signed-off-by: Paul Blakey Reviewed-by: Mark Bloch Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c index 2478516a61e2..ded27bb9a3b6 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c @@ -1136,7 +1136,7 @@ static struct mlx5_flow_group *create_autogroup(struct mlx5_flow_table *ft, u32 *match_criteria) { int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in); - struct list_head *prev = ft->node.children.prev; + struct list_head *prev = &ft->node.children; unsigned int candidate_index = 0; struct mlx5_flow_group *fg; void *match_criteria_addr; -- cgit From 5d47f6c89d568ab61712d8c40676fbb020b68752 Mon Sep 17 00:00:00 2001 From: Daniel Jurgens Date: Fri, 10 Mar 2017 14:33:02 +0200 Subject: net/mlx5: Don't save PCI state when PCI error is detected When a PCI error is detected the PCI state could be corrupt, don't save it in that flow. Save the state after initialization. After restoring the PCI state during slot reset save it again, restoring the state destroys the previously saved state info. Fixes: 05ac2c0b7438 ('net/mlx5: Fix race between PCI error handlers and health work') Signed-off-by: Daniel Jurgens Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/main.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c index c4242a4e8130..e2bd600d19de 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/main.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c @@ -1352,6 +1352,7 @@ static int init_one(struct pci_dev *pdev, if (err) goto clean_load; + pci_save_state(pdev); return 0; clean_load: @@ -1407,9 +1408,8 @@ static pci_ers_result_t mlx5_pci_err_detected(struct pci_dev *pdev, mlx5_enter_error_state(dev); mlx5_unload_one(dev, priv, false); - /* In case of kernel call save the pci state and drain the health wq */ + /* In case of kernel call drain the health wq */ if (state) { - pci_save_state(pdev); mlx5_drain_health_wq(dev); mlx5_pci_disable_device(dev); } @@ -1461,6 +1461,7 @@ static pci_ers_result_t mlx5_pci_slot_reset(struct pci_dev *pdev) pci_set_master(pdev); pci_restore_state(pdev); + pci_save_state(pdev); if (wait_vital(pdev)) { dev_err(&pdev->dev, "%s: wait_vital timed out\n", __func__); -- cgit From 33e21c59526e9147d7c68913995298f10c35cd6f Mon Sep 17 00:00:00 2001 From: Huy Nguyen Date: Fri, 10 Mar 2017 14:33:03 +0200 Subject: net/mlx5e: remove IEEE/CEE mode check when setting DCBX mode Currently, the function setdcbx fails if the request dcbx mode is either IEEE or CEE. We remove the IEEE/CEE mode check because we support both IEEE and CEE interfaces. Fixes: 3a6a931dfb8e ("net/mlx5e: Support DCBX CEE API") Signed-off-by: Huy Nguyen Reviewed-by: Daniel Jurgens Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c index 0523ed47f597..8fa23f6a1f67 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_dcbnl.c @@ -302,6 +302,9 @@ static u8 mlx5e_dcbnl_setdcbx(struct net_device *dev, u8 mode) struct mlx5e_priv *priv = netdev_priv(dev); struct mlx5e_dcbx *dcbx = &priv->dcbx; + if (mode & DCB_CAP_DCBX_LLD_MANAGED) + return 1; + if ((!mode) && MLX5_CAP_GEN(priv->mdev, dcbx)) { if (dcbx->mode == MLX5E_DCBX_PARAM_VER_OPER_AUTO) return 0; @@ -315,13 +318,10 @@ static u8 mlx5e_dcbnl_setdcbx(struct net_device *dev, u8 mode) return 1; } - if (mlx5e_dcbnl_switch_to_host_mode(netdev_priv(dev))) + if (!(mode & DCB_CAP_DCBX_HOST)) return 1; - if ((mode & DCB_CAP_DCBX_LLD_MANAGED) || - !(mode & DCB_CAP_DCBX_VER_CEE) || - !(mode & DCB_CAP_DCBX_VER_IEEE) || - !(mode & DCB_CAP_DCBX_HOST)) + if (mlx5e_dcbnl_switch_to_host_mode(netdev_priv(dev))) return 1; return 0; -- cgit From 65ba8fb7d5c6803ec236bb8d6650465fed7f9769 Mon Sep 17 00:00:00 2001 From: Or Gerlitz Date: Fri, 10 Mar 2017 14:33:04 +0200 Subject: net/mlx5e: Avoid wrong identification of rules on deletion When deleting offloaded TC flows, we must correctly identify E-switch rules. The current check could get us wrong w.r.t to rules set on the PF. Since it's possible to set NIC rules on the PF, switch to SRIOV offloads mode and then attempt to delete a NIC rule. To solve that, we add a flags field to offloaded rules, set it on creation time and use that over the code where currently needed. Fixes: 8b32580df1cb ('net/mlx5e: Add TC vlan action for SRIOV offloads') Signed-off-by: Or Gerlitz Reviewed-by: Roi Dayan Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/en_tc.c | 33 ++++++++++++++----------- 1 file changed, 18 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c index 44406a5ec15d..79481f4cf264 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c @@ -48,9 +48,14 @@ #include "eswitch.h" #include "vxlan.h" +enum { + MLX5E_TC_FLOW_ESWITCH = BIT(0), +}; + struct mlx5e_tc_flow { struct rhash_head node; u64 cookie; + u8 flags; struct mlx5_flow_handle *rule; struct list_head encap; /* flows sharing the same encap */ struct mlx5_esw_flow_attr *attr; @@ -177,7 +182,7 @@ static void mlx5e_tc_del_flow(struct mlx5e_priv *priv, mlx5_fc_destroy(priv->mdev, counter); } - if (esw && esw->mode == SRIOV_OFFLOADS) { + if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { mlx5_eswitch_del_vlan_action(esw, flow->attr); if (flow->attr->action & MLX5_FLOW_CONTEXT_ACTION_ENCAP) mlx5e_detach_encap(priv, flow); @@ -598,6 +603,7 @@ static int __parse_cls_flower(struct mlx5e_priv *priv, } static int parse_cls_flower(struct mlx5e_priv *priv, + struct mlx5e_tc_flow *flow, struct mlx5_flow_spec *spec, struct tc_cls_flower_offload *f) { @@ -609,7 +615,7 @@ static int parse_cls_flower(struct mlx5e_priv *priv, err = __parse_cls_flower(priv, spec, f, &min_inline); - if (!err && esw->mode == SRIOV_OFFLOADS && + if (!err && (flow->flags & MLX5E_TC_FLOW_ESWITCH) && rep->vport != FDB_UPLINK_VPORT) { if (min_inline > esw->offloads.inline_mode) { netdev_warn(priv->netdev, @@ -1132,23 +1138,19 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, struct tc_cls_flower_offload *f) { struct mlx5e_tc_table *tc = &priv->fs.tc; - int err = 0; - bool fdb_flow = false; + int err, attr_size = 0; u32 flow_tag, action; struct mlx5e_tc_flow *flow; struct mlx5_flow_spec *spec; struct mlx5_eswitch *esw = priv->mdev->priv.eswitch; + u8 flow_flags = 0; - if (esw && esw->mode == SRIOV_OFFLOADS) - fdb_flow = true; - - if (fdb_flow) - flow = kzalloc(sizeof(*flow) + - sizeof(struct mlx5_esw_flow_attr), - GFP_KERNEL); - else - flow = kzalloc(sizeof(*flow), GFP_KERNEL); + if (esw && esw->mode == SRIOV_OFFLOADS) { + flow_flags = MLX5E_TC_FLOW_ESWITCH; + attr_size = sizeof(struct mlx5_esw_flow_attr); + } + flow = kzalloc(sizeof(*flow) + attr_size, GFP_KERNEL); spec = mlx5_vzalloc(sizeof(*spec)); if (!spec || !flow) { err = -ENOMEM; @@ -1156,12 +1158,13 @@ int mlx5e_configure_flower(struct mlx5e_priv *priv, __be16 protocol, } flow->cookie = f->cookie; + flow->flags = flow_flags; - err = parse_cls_flower(priv, spec, f); + err = parse_cls_flower(priv, flow, spec, f); if (err < 0) goto err_free; - if (fdb_flow) { + if (flow->flags & MLX5E_TC_FLOW_ESWITCH) { flow->attr = (struct mlx5_esw_flow_attr *)(flow + 1); err = parse_tc_fdb_actions(priv, f->exts, flow); if (err < 0) -- cgit From ea29bd304d7b522f6162a36f394e690c579b5a63 Mon Sep 17 00:00:00 2001 From: Eugenia Emantayev Date: Fri, 10 Mar 2017 14:33:05 +0200 Subject: net/mlx5e: Fix loopback selftest Change packet type handler to ETH_P_IP instead of ETH_P_ALL since we are already expecting an IP packet. Also, using ETH_P_ALL will cause the loopback test packet type handler to be called on all outgoing packets, especially our own self loopback test SKB, which will be validated on xmit as well, and we don't want that. Tested with: ethtool -t ethX validated that the loopback test passes. Fixes: 0952da791c97 ('net/mlx5e: Add support for loopback selftest') Signed-off-by: Eugenia Emantayev Signed-off-by: Saeed Mahameed Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c index 31e3cb7ee5fe..5621dcfda4f1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_selftest.c @@ -204,9 +204,6 @@ mlx5e_test_loopback_validate(struct sk_buff *skb, struct iphdr *iph; /* We are only going to peek, no need to clone the SKB */ - if (skb->protocol != htons(ETH_P_IP)) - goto out; - if (MLX5E_TEST_PKT_SIZE - ETH_HLEN > skb_headlen(skb)) goto out; @@ -249,7 +246,7 @@ static int mlx5e_test_loopback_setup(struct mlx5e_priv *priv, lbtp->loopback_ok = false; init_completion(&lbtp->comp); - lbtp->pt.type = htons(ETH_P_ALL); + lbtp->pt.type = htons(ETH_P_IP); lbtp->pt.func = mlx5e_test_loopback_validate; lbtp->pt.dev = priv->netdev; lbtp->pt.af_packet_priv = lbtp; -- cgit From d8a8ed9758241e138933c67e40db2db2790eca19 Mon Sep 17 00:00:00 2001 From: Tom St Denis Date: Thu, 9 Mar 2017 13:21:07 -0500 Subject: drm/amd/amdgpu: Disable GFX_PG on Carrizo until compute issues solved Currently compute jobs will stall if GFX_PG is enabled. Until this is resolved we'll disable GFX_PG. Signed-off-by: Tom St Denis Reviewed-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/vi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/vi.c b/drivers/gpu/drm/amd/amdgpu/vi.c index 50bdb24ef8d6..4a785d6acfb9 100644 --- a/drivers/gpu/drm/amd/amdgpu/vi.c +++ b/drivers/gpu/drm/amd/amdgpu/vi.c @@ -1051,7 +1051,7 @@ static int vi_common_early_init(void *handle) /* rev0 hardware requires workarounds to support PG */ adev->pg_flags = 0; if (adev->rev_id != 0x00) { - adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG | + adev->pg_flags |= AMD_PG_SUPPORT_GFX_SMG | AMD_PG_SUPPORT_GFX_PIPELINE | AMD_PG_SUPPORT_CP | -- cgit From 607523d19c9d67ba4cf7bdaced644f11ed04992c Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 10 Mar 2017 12:13:04 +1000 Subject: drm/amdgpu: fix parser init error path to avoid crash in parser fini MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If we don't reset the chunk info in the error path, the subsequent fini path will double free. Reviewed-by: Christian König Signed-off-by: Dave Airlie Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c index d2d0f60ff36d..99424cb8020b 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c @@ -240,6 +240,8 @@ free_partial_kdata: for (; i >= 0; i--) drm_free_large(p->chunks[i].kdata); kfree(p->chunks); + p->chunks = NULL; + p->nchunks = 0; put_ctx: amdgpu_ctx_put(p->ctx); free_chunk: -- cgit From 3fb632e40d7667d8bedfabc28850ac06d5493f54 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 10 Mar 2017 11:27:23 +0800 Subject: md: fix super_offset endianness in super_1_rdev_size_change The sb->super_offset should be big-endian, but the rdev->sb_start is in host byte order, so fix this by adding cpu_to_le64. Signed-off-by: Jason Yan Signed-off-by: Shaohua Li --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index cd89ad3c3a0d..6e76d97a8fc3 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -1879,7 +1879,7 @@ super_1_rdev_size_change(struct md_rdev *rdev, sector_t num_sectors) } sb = page_address(rdev->sb_page); sb->data_size = cpu_to_le64(num_sectors); - sb->super_offset = rdev->sb_start; + sb->super_offset = cpu_to_le64(rdev->sb_start); sb->sb_csum = calc_sb_1_csum(sb); do { md_super_write(rdev->mddev, rdev, rdev->sb_start, rdev->sb_size, -- cgit From 1345921393ba23b60d3fcf15933e699232ad25ae Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 10 Mar 2017 11:49:12 +0800 Subject: md: fix incorrect use of lexx_to_cpu in does_sb_need_changing The sb->layout is of type __le32, so we shoud use le32_to_cpu. Signed-off-by: Jason Yan Signed-off-by: Shaohua Li --- drivers/md/md.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/md.c b/drivers/md/md.c index 6e76d97a8fc3..f6ae1d67bcd0 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2287,7 +2287,7 @@ static bool does_sb_need_changing(struct mddev *mddev) /* Check if any mddev parameters have changed */ if ((mddev->dev_sectors != le64_to_cpu(sb->size)) || (mddev->reshape_position != le64_to_cpu(sb->reshape_position)) || - (mddev->layout != le64_to_cpu(sb->layout)) || + (mddev->layout != le32_to_cpu(sb->layout)) || (mddev->raid_disks != le32_to_cpu(sb->raid_disks)) || (mddev->chunk_sectors != le32_to_cpu(sb->chunksize))) return true; -- cgit From 0134ed4fb9e78672ee9f7b18007114404c81e63f Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Fri, 10 Mar 2017 13:24:22 -0700 Subject: device-dax: fix pmd/pte fault fallback handling Jeff Moyer reports: With a device dax alignment of 4KB or 2MB, I get sigbus when running the attached fio job file for the current kernel (4.11.0-rc1+). If I specify an alignment of 1GB, it works. I turned on debug output, and saw that it was failing in the huge fault code. dax dax1.0: dax_open dax dax1.0: dax_mmap dax dax1.0: dax_dev_huge_fault: fio: write (0x7f08f0a00000 - dax dax1.0: __dax_dev_pud_fault: phys_to_pgoff(0xffffffffcf60 dax dax1.0: dax_release fio config for reproduce: [global] ioengine=dev-dax direct=0 filename=/dev/dax0.0 bs=2m [write] rw=write [read] stonewall rw=read The driver fails to fallback when taking a fault that is larger than the device alignment, or handling a larger fault when a smaller mapping is already established. While we could support larger mappings for a device with a smaller alignment, that change is too large for the immediate fix. The simplest change is to force fallback until the fault size matches the alignment. Fixes: dee410792419 ("/dev/dax, core: file operations and dax-mmap") Cc: Reported-by: Jeff Moyer Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/dax/dax.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'drivers') diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index 8d9829ff2a78..a284dc532e46 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -427,6 +427,7 @@ static int __dax_dev_pte_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) int rc = VM_FAULT_SIGBUS; phys_addr_t phys; pfn_t pfn; + unsigned int fault_size = PAGE_SIZE; if (check_vma(dax_dev, vmf->vma, __func__)) return VM_FAULT_SIGBUS; @@ -437,6 +438,9 @@ static int __dax_dev_pte_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) return VM_FAULT_SIGBUS; } + if (fault_size != dax_region->align) + return VM_FAULT_SIGBUS; + phys = pgoff_to_phys(dax_dev, vmf->pgoff, PAGE_SIZE); if (phys == -1) { dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__, @@ -464,6 +468,7 @@ static int __dax_dev_pmd_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) phys_addr_t phys; pgoff_t pgoff; pfn_t pfn; + unsigned int fault_size = PMD_SIZE; if (check_vma(dax_dev, vmf->vma, __func__)) return VM_FAULT_SIGBUS; @@ -480,6 +485,16 @@ static int __dax_dev_pmd_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) return VM_FAULT_SIGBUS; } + if (fault_size < dax_region->align) + return VM_FAULT_SIGBUS; + else if (fault_size > dax_region->align) + return VM_FAULT_FALLBACK; + + /* if we are outside of the VMA */ + if (pmd_addr < vmf->vma->vm_start || + (pmd_addr + PMD_SIZE) > vmf->vma->vm_end) + return VM_FAULT_SIGBUS; + pgoff = linear_page_index(vmf->vma, pmd_addr); phys = pgoff_to_phys(dax_dev, pgoff, PMD_SIZE); if (phys == -1) { -- cgit From 70b085b06c4560a69e95607f77bb4c2b2e41943c Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Fri, 10 Mar 2017 13:24:27 -0700 Subject: device-dax: fix pud fault fallback handling Jeff Moyer reports: With a device dax alignment of 4KB or 2MB, I get sigbus when running the attached fio job file for the current kernel (4.11.0-rc1+). If I specify an alignment of 1GB, it works. I turned on debug output, and saw that it was failing in the huge fault code. dax dax1.0: dax_open dax dax1.0: dax_mmap dax dax1.0: dax_dev_huge_fault: fio: write (0x7f08f0a00000 - dax dax1.0: __dax_dev_pud_fault: phys_to_pgoff(0xffffffffcf60) dax dax1.0: dax_release fio config for reproduce: [global] ioengine=dev-dax direct=0 filename=/dev/dax0.0 bs=2m [write] rw=write [read] stonewall rw=read The driver fails to fallback when taking a fault that is larger than the device alignment, or handling a larger fault when a smaller mapping is already established. While we could support larger mappings for a device with a smaller alignment, that change is too large for the immediate fix. The simplest change is to force fallback until the fault size matches the alignment. Reported-by: Jeff Moyer Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/dax/dax.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'drivers') diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index a284dc532e46..523fecec7bda 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -518,6 +518,8 @@ static int __dax_dev_pud_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) phys_addr_t phys; pgoff_t pgoff; pfn_t pfn; + unsigned int fault_size = PUD_SIZE; + if (check_vma(dax_dev, vmf->vma, __func__)) return VM_FAULT_SIGBUS; @@ -534,6 +536,16 @@ static int __dax_dev_pud_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) return VM_FAULT_SIGBUS; } + if (fault_size < dax_region->align) + return VM_FAULT_SIGBUS; + else if (fault_size > dax_region->align) + return VM_FAULT_FALLBACK; + + /* if we are outside of the VMA */ + if (pud_addr < vmf->vma->vm_start || + (pud_addr + PUD_SIZE) > vmf->vma->vm_end) + return VM_FAULT_SIGBUS; + pgoff = linear_page_index(vmf->vma, pud_addr); phys = pgoff_to_phys(dax_dev, pgoff, PUD_SIZE); if (phys == -1) { -- cgit From 52084f89b38cdd896b59627c629915ef1a7bf615 Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Thu, 9 Mar 2017 16:56:01 -0700 Subject: device-dax: fix debug output typo The debug output for return the return data of pgoff_to_phys() in the fault handlers has 'phys' and 'pgoff' incorrectly swapped. Reported-by: Jeff Moyer Signed-off-by: Dave Jiang Signed-off-by: Dan Williams --- drivers/dax/dax.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c index 523fecec7bda..80c6db279ae1 100644 --- a/drivers/dax/dax.c +++ b/drivers/dax/dax.c @@ -443,7 +443,7 @@ static int __dax_dev_pte_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) phys = pgoff_to_phys(dax_dev, vmf->pgoff, PAGE_SIZE); if (phys == -1) { - dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__, + dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__, vmf->pgoff); return VM_FAULT_SIGBUS; } @@ -498,7 +498,7 @@ static int __dax_dev_pmd_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) pgoff = linear_page_index(vmf->vma, pmd_addr); phys = pgoff_to_phys(dax_dev, pgoff, PMD_SIZE); if (phys == -1) { - dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__, + dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__, pgoff); return VM_FAULT_SIGBUS; } @@ -549,7 +549,7 @@ static int __dax_dev_pud_fault(struct dax_dev *dax_dev, struct vm_fault *vmf) pgoff = linear_page_index(vmf->vma, pud_addr); phys = pgoff_to_phys(dax_dev, pgoff, PUD_SIZE); if (phys == -1) { - dev_dbg(dev, "%s: phys_to_pgoff(%#lx) failed\n", __func__, + dev_dbg(dev, "%s: pgoff_to_phys(%#lx) failed\n", __func__, pgoff); return VM_FAULT_SIGBUS; } -- cgit From c962cff17dfa11f4a8227ac16de2b28aea3312e4 Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Fri, 3 Mar 2017 16:02:23 +0800 Subject: Revert "x86/acpi: Set persistent cpuid <-> nodeid mapping when booting" Revert: dc6db24d2476 ("x86/acpi: Set persistent cpuid <-> nodeid mapping when booting") The mapping of "cpuid <-> nodeid" is established at boot time via ACPI tables to keep associations of workqueues and other node related items consistent across cpu hotplug. But, ACPI tables are unreliable and failures with that boot time mapping have been reported on machines where the ACPI table and the physical information which is retrieved at actual hotplug is inconsistent. Revert the mapping implementation so it can be replaced with a less error prone approach. Signed-off-by: Dou Liyang Tested-by: Xiaolong Ye Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: guzheng1@huawei.com Cc: izumi.taku@jp.fujitsu.com Cc: lenb@kernel.org Link: http://lkml.kernel.org/r/1488528147-2279-2-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner --- drivers/acpi/acpi_processor.c | 5 --- drivers/acpi/bus.c | 1 - drivers/acpi/processor_core.c | 73 ------------------------------------------- 3 files changed, 79 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 4467a8089ab8..5d208a99d0c9 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -182,11 +182,6 @@ int __weak arch_register_cpu(int cpu) void __weak arch_unregister_cpu(int cpu) {} -int __weak acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) -{ - return -ENODEV; -} - static int acpi_processor_hotadd_init(struct acpi_processor *pr) { unsigned long long sta; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 80cb5eb75b63..34fbe027e73a 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -1249,7 +1249,6 @@ static int __init acpi_init(void) acpi_wakeup_device_init(); acpi_debugger_init(); acpi_setup_sb_notify_handler(); - acpi_set_processor_mapping(); return 0; } diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index 611a5585a902..a84386204659 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -278,79 +278,6 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) } EXPORT_SYMBOL_GPL(acpi_get_cpuid); -#ifdef CONFIG_ACPI_HOTPLUG_CPU -static bool __init -map_processor(acpi_handle handle, phys_cpuid_t *phys_id, int *cpuid) -{ - int type, id; - u32 acpi_id; - acpi_status status; - acpi_object_type acpi_type; - unsigned long long tmp; - union acpi_object object = { 0 }; - struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - - status = acpi_get_type(handle, &acpi_type); - if (ACPI_FAILURE(status)) - return false; - - switch (acpi_type) { - case ACPI_TYPE_PROCESSOR: - status = acpi_evaluate_object(handle, NULL, NULL, &buffer); - if (ACPI_FAILURE(status)) - return false; - acpi_id = object.processor.proc_id; - - /* validate the acpi_id */ - if(acpi_processor_validate_proc_id(acpi_id)) - return false; - break; - case ACPI_TYPE_DEVICE: - status = acpi_evaluate_integer(handle, "_UID", NULL, &tmp); - if (ACPI_FAILURE(status)) - return false; - acpi_id = tmp; - break; - default: - return false; - } - - type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0; - - *phys_id = __acpi_get_phys_id(handle, type, acpi_id, false); - id = acpi_map_cpuid(*phys_id, acpi_id); - - if (id < 0) - return false; - *cpuid = id; - return true; -} - -static acpi_status __init -set_processor_node_mapping(acpi_handle handle, u32 lvl, void *context, - void **rv) -{ - phys_cpuid_t phys_id; - int cpu_id; - - if (!map_processor(handle, &phys_id, &cpu_id)) - return AE_ERROR; - - acpi_map_cpu2node(handle, cpu_id, phys_id); - return AE_OK; -} - -void __init acpi_set_processor_mapping(void) -{ - /* Set persistent cpu <-> node mapping for all processors. */ - acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, set_processor_node_mapping, - NULL, NULL, NULL); -} -#else -void __init acpi_set_processor_mapping(void) {} -#endif /* CONFIG_ACPI_HOTPLUG_CPU */ - #ifdef CONFIG_ACPI_HOTPLUG_IOAPIC static int get_ioapic_id(struct acpi_subtable_header *entry, u32 gsi_base, u64 *phys_addr, int *ioapic_id) -- cgit From 09c3f2bd5c7e5f18687663acb6adc6b167484ca5 Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Fri, 3 Mar 2017 16:02:24 +0800 Subject: Revert"x86/acpi: Enable MADT APIs to return disabled apicids" Revert: 8ad893faf2ea ("x86/acpi: Enable MADT APIs to return disabled apicids") Remove the leftovers of the boot time 'cpuid <-> nodeid' mapping approach. Signed-off-by: Dou Liyang Tested-by: Xiaolong Ye Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: guzheng1@huawei.com Cc: izumi.taku@jp.fujitsu.com Cc: lenb@kernel.org Link: http://lkml.kernel.org/r/1488528147-2279-3-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner --- drivers/acpi/processor_core.c | 60 ++++++++++++++++--------------------------- 1 file changed, 22 insertions(+), 38 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index a84386204659..b933061b6b60 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -32,12 +32,12 @@ static struct acpi_table_madt *get_madt_table(void) } static int map_lapic_id(struct acpi_subtable_header *entry, - u32 acpi_id, phys_cpuid_t *apic_id, bool ignore_disabled) + u32 acpi_id, phys_cpuid_t *apic_id) { struct acpi_madt_local_apic *lapic = container_of(entry, struct acpi_madt_local_apic, header); - if (ignore_disabled && !(lapic->lapic_flags & ACPI_MADT_ENABLED)) + if (!(lapic->lapic_flags & ACPI_MADT_ENABLED)) return -ENODEV; if (lapic->processor_id != acpi_id) @@ -48,13 +48,12 @@ static int map_lapic_id(struct acpi_subtable_header *entry, } static int map_x2apic_id(struct acpi_subtable_header *entry, - int device_declaration, u32 acpi_id, phys_cpuid_t *apic_id, - bool ignore_disabled) + int device_declaration, u32 acpi_id, phys_cpuid_t *apic_id) { struct acpi_madt_local_x2apic *apic = container_of(entry, struct acpi_madt_local_x2apic, header); - if (ignore_disabled && !(apic->lapic_flags & ACPI_MADT_ENABLED)) + if (!(apic->lapic_flags & ACPI_MADT_ENABLED)) return -ENODEV; if (device_declaration && (apic->uid == acpi_id)) { @@ -66,13 +65,12 @@ static int map_x2apic_id(struct acpi_subtable_header *entry, } static int map_lsapic_id(struct acpi_subtable_header *entry, - int device_declaration, u32 acpi_id, phys_cpuid_t *apic_id, - bool ignore_disabled) + int device_declaration, u32 acpi_id, phys_cpuid_t *apic_id) { struct acpi_madt_local_sapic *lsapic = container_of(entry, struct acpi_madt_local_sapic, header); - if (ignore_disabled && !(lsapic->lapic_flags & ACPI_MADT_ENABLED)) + if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED)) return -ENODEV; if (device_declaration) { @@ -89,13 +87,12 @@ static int map_lsapic_id(struct acpi_subtable_header *entry, * Retrieve the ARM CPU physical identifier (MPIDR) */ static int map_gicc_mpidr(struct acpi_subtable_header *entry, - int device_declaration, u32 acpi_id, phys_cpuid_t *mpidr, - bool ignore_disabled) + int device_declaration, u32 acpi_id, phys_cpuid_t *mpidr) { struct acpi_madt_generic_interrupt *gicc = container_of(entry, struct acpi_madt_generic_interrupt, header); - if (ignore_disabled && !(gicc->flags & ACPI_MADT_ENABLED)) + if (!(gicc->flags & ACPI_MADT_ENABLED)) return -ENODEV; /* device_declaration means Device object in DSDT, in the @@ -112,7 +109,7 @@ static int map_gicc_mpidr(struct acpi_subtable_header *entry, } static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt, - int type, u32 acpi_id, bool ignore_disabled) + int type, u32 acpi_id) { unsigned long madt_end, entry; phys_cpuid_t phys_id = PHYS_CPUID_INVALID; /* CPU hardware ID */ @@ -130,20 +127,16 @@ static phys_cpuid_t map_madt_entry(struct acpi_table_madt *madt, struct acpi_subtable_header *header = (struct acpi_subtable_header *)entry; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) { - if (!map_lapic_id(header, acpi_id, &phys_id, - ignore_disabled)) + if (!map_lapic_id(header, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) { - if (!map_x2apic_id(header, type, acpi_id, &phys_id, - ignore_disabled)) + if (!map_x2apic_id(header, type, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) { - if (!map_lsapic_id(header, type, acpi_id, &phys_id, - ignore_disabled)) + if (!map_lsapic_id(header, type, acpi_id, &phys_id)) break; } else if (header->type == ACPI_MADT_TYPE_GENERIC_INTERRUPT) { - if (!map_gicc_mpidr(header, type, acpi_id, &phys_id, - ignore_disabled)) + if (!map_gicc_mpidr(header, type, acpi_id, &phys_id)) break; } entry += header->length; @@ -161,15 +154,14 @@ phys_cpuid_t __init acpi_map_madt_entry(u32 acpi_id) if (!madt) return PHYS_CPUID_INVALID; - rv = map_madt_entry(madt, 1, acpi_id, true); + rv = map_madt_entry(madt, 1, acpi_id); acpi_put_table((struct acpi_table_header *)madt); return rv; } -static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id, - bool ignore_disabled) +static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id) { struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; @@ -190,38 +182,30 @@ static phys_cpuid_t map_mat_entry(acpi_handle handle, int type, u32 acpi_id, header = (struct acpi_subtable_header *)obj->buffer.pointer; if (header->type == ACPI_MADT_TYPE_LOCAL_APIC) - map_lapic_id(header, acpi_id, &phys_id, ignore_disabled); + map_lapic_id(header, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_SAPIC) - map_lsapic_id(header, type, acpi_id, &phys_id, ignore_disabled); + map_lsapic_id(header, type, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_LOCAL_X2APIC) - map_x2apic_id(header, type, acpi_id, &phys_id, ignore_disabled); + map_x2apic_id(header, type, acpi_id, &phys_id); else if (header->type == ACPI_MADT_TYPE_GENERIC_INTERRUPT) - map_gicc_mpidr(header, type, acpi_id, &phys_id, - ignore_disabled); + map_gicc_mpidr(header, type, acpi_id, &phys_id); exit: kfree(buffer.pointer); return phys_id; } -static phys_cpuid_t __acpi_get_phys_id(acpi_handle handle, int type, - u32 acpi_id, bool ignore_disabled) +phys_cpuid_t acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id) { phys_cpuid_t phys_id; - phys_id = map_mat_entry(handle, type, acpi_id, ignore_disabled); + phys_id = map_mat_entry(handle, type, acpi_id); if (invalid_phys_cpuid(phys_id)) - phys_id = map_madt_entry(get_madt_table(), type, acpi_id, - ignore_disabled); + phys_id = map_madt_entry(get_madt_table(), type, acpi_id); return phys_id; } -phys_cpuid_t acpi_get_phys_id(acpi_handle handle, int type, u32 acpi_id) -{ - return __acpi_get_phys_id(handle, type, acpi_id, true); -} - int acpi_map_cpuid(phys_cpuid_t phys_id, u32 acpi_id) { #ifdef CONFIG_SMP -- cgit From 8c8cb30f49b86333d8e036e1945cf1a78c03577e Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Fri, 3 Mar 2017 16:02:26 +0800 Subject: acpi/processor: Implement DEVICE operator for processor enumeration ACPI allows to declare processors either with the PROCESSOR or with the DEVICE operator. The current implementation handles only the PROCESSOR operator. On a system which uses the DEVICE operator for processor enumeration the evaluation fails. Check for the ACPI type of the ACPI handle and evaluate PROCESSOR and DEVICE types separately. Signed-off-by: Dou Liyang Tested-by: Xiaolong Ye Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: guzheng1@huawei.com Cc: izumi.taku@jp.fujitsu.com Cc: lenb@kernel.org Link: http://lkml.kernel.org/r/1488528147-2279-5-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner --- drivers/acpi/acpi_processor.c | 39 ++++++++++++++++++++++++++++++++------- 1 file changed, 32 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 5d208a99d0c9..9a98d7e00200 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -633,25 +633,50 @@ static acpi_status __init acpi_processor_ids_walk(acpi_handle handle, void **rv) { acpi_status status; + acpi_object_type acpi_type; + unsigned long long uid; union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; - status = acpi_evaluate_object(handle, NULL, NULL, &buffer); + status = acpi_get_type(handle, &acpi_type); if (ACPI_FAILURE(status)) - acpi_handle_info(handle, "Not get the processor object\n"); - else - processor_validated_ids_update(object.processor.proc_id); + return false; + + switch (acpi_type) { + case ACPI_TYPE_PROCESSOR: + status = acpi_evaluate_object(handle, NULL, NULL, &buffer); + if (ACPI_FAILURE(status)) + goto err; + uid = object.processor.proc_id; + break; + + case ACPI_TYPE_DEVICE: + status = acpi_evaluate_integer(handle, "_UID", NULL, &uid); + if (ACPI_FAILURE(status)) + goto err; + break; + default: + goto err; + } + + processor_validated_ids_update(uid); + return true; + +err: + acpi_handle_info(handle, "Invalid processor object\n"); + return false; - return AE_OK; } -static void __init acpi_processor_check_duplicates(void) +void __init acpi_processor_check_duplicates(void) { - /* Search all processor nodes in ACPI namespace */ + /* check the correctness for all processors in ACPI namespace */ acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, acpi_processor_ids_walk, NULL, NULL, NULL); + acpi_get_devices(ACPI_PROCESSOR_DEVICE_HID, acpi_processor_ids_walk, + NULL, NULL); } bool __init acpi_processor_validate_proc_id(int proc_id) -- cgit From a77d6cd968497792e072b74dff45b891ba778ddb Mon Sep 17 00:00:00 2001 From: Dou Liyang Date: Fri, 3 Mar 2017 16:02:27 +0800 Subject: acpi/processor: Check for duplicate processor ids at hotplug time The check for duplicate processor ids happens at boot time based on the ACPI table contents, but the final sanity checks for a processor happen at hotplug time. At hotplug time, where the physical information is available, which might differ from the ACPI table information, a check for duplicate processor ids is missing. Add it to the hotplug checks and rename the function so it better reflects its purpose. Signed-off-by: Dou Liyang Tested-by: Xiaolong Ye Cc: rjw@rjwysocki.net Cc: linux-acpi@vger.kernel.org Cc: guzheng1@huawei.com Cc: izumi.taku@jp.fujitsu.com Cc: lenb@kernel.org Link: http://lkml.kernel.org/r/1488528147-2279-6-git-send-email-douly.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner --- drivers/acpi/acpi_processor.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 9a98d7e00200..0143135b3abe 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -280,6 +280,13 @@ static int acpi_processor_get_info(struct acpi_device *device) pr->acpi_id = value; } + if (acpi_duplicate_processor_id(pr->acpi_id)) { + dev_err(&device->dev, + "Failed to get unique processor _UID (0x%x)\n", + pr->acpi_id); + return -ENODEV; + } + pr->phys_id = acpi_get_phys_id(pr->handle, device_declaration, pr->acpi_id); if (invalid_phys_cpuid(pr->phys_id)) @@ -580,7 +587,7 @@ static struct acpi_scan_handler processor_container_handler = { static int nr_unique_ids __initdata; /* The number of the duplicate processor IDs */ -static int nr_duplicate_ids __initdata; +static int nr_duplicate_ids; /* Used to store the unique processor IDs */ static int unique_processor_ids[] __initdata = { @@ -588,7 +595,7 @@ static int unique_processor_ids[] __initdata = { }; /* Used to store the duplicate processor IDs */ -static int duplicate_processor_ids[] __initdata = { +static int duplicate_processor_ids[] = { [0 ... NR_CPUS - 1] = -1, }; @@ -679,7 +686,7 @@ void __init acpi_processor_check_duplicates(void) NULL, NULL); } -bool __init acpi_processor_validate_proc_id(int proc_id) +bool acpi_duplicate_processor_id(int proc_id) { int i; -- cgit From 33d8c15559df4f0bce25d7e16ebb5879e249f2e7 Mon Sep 17 00:00:00 2001 From: Romain Izard Date: Thu, 9 Mar 2017 17:58:38 +0100 Subject: Revert "clocksource/drivers/tcb_clksrc: Use 32 bit tcb as sched_clock" This reverts commit 7b9f1d16e6d1 ("clocksource/drivers/tcb_clksrc: Use 32 bit tcb as sched_clock"). In the current state, the kernel warns against a late registration of the new sched_clock, the printk clock resets after only a few minutes, and it seems that scheduling can be affected as well. Signed-off-by: Romain Izard Signed-off-by: Daniel Lezcano --- drivers/clocksource/tcb_clksrc.c | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c index 745844ee973e..d4ca9962a759 100644 --- a/drivers/clocksource/tcb_clksrc.c +++ b/drivers/clocksource/tcb_clksrc.c @@ -10,7 +10,6 @@ #include #include #include -#include /* @@ -57,14 +56,9 @@ static u64 tc_get_cycles(struct clocksource *cs) return (upper << 16) | lower; } -static u32 tc_get_cv32(void) -{ - return __raw_readl(tcaddr + ATMEL_TC_REG(0, CV)); -} - static u64 tc_get_cycles32(struct clocksource *cs) { - return tc_get_cv32(); + return __raw_readl(tcaddr + ATMEL_TC_REG(0, CV)); } static struct clocksource clksrc = { @@ -75,11 +69,6 @@ static struct clocksource clksrc = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static u64 notrace tc_read_sched_clock(void) -{ - return tc_get_cv32(); -} - #ifdef CONFIG_GENERIC_CLOCKEVENTS struct tc_clkevt_device { @@ -350,9 +339,6 @@ static int __init tcb_clksrc_init(void) clksrc.read = tc_get_cycles32; /* setup ony channel 0 */ tcb_setup_single_chan(tc, best_divisor_idx); - - /* register sched_clock on chips with single 32 bit counter */ - sched_clock_register(tc_read_sched_clock, 32, divided_rate); } else { /* tclib will give us three clocks no matter what the * underlying platform supports. -- cgit From f5fe1b51905df7cfe4fdfd85c5fb7bc5b71a094f Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Fri, 10 Mar 2017 17:00:47 +1100 Subject: blk: Ensure users for current->bio_list can see the full list. Commit 79bd99596b73 ("blk: improve order of bio handling in generic_make_request()") changed current->bio_list so that it did not contain *all* of the queued bios, but only those submitted by the currently running make_request_fn. There are two places which walk the list and requeue selected bios, and others that check if the list is empty. These are no longer correct. So redefine current->bio_list to point to an array of two lists, which contain all queued bios, and adjust various code to test or walk both lists. Signed-off-by: NeilBrown Fixes: 79bd99596b73 ("blk: improve order of bio handling in generic_make_request()") Signed-off-by: Jens Axboe --- drivers/md/dm.c | 29 ++++++++++++++++------------- drivers/md/raid10.c | 3 ++- 2 files changed, 18 insertions(+), 14 deletions(-) (limited to 'drivers') diff --git a/drivers/md/dm.c b/drivers/md/dm.c index f4ffd1eb8f44..dfb75979e455 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -989,26 +989,29 @@ static void flush_current_bio_list(struct blk_plug_cb *cb, bool from_schedule) struct dm_offload *o = container_of(cb, struct dm_offload, cb); struct bio_list list; struct bio *bio; + int i; INIT_LIST_HEAD(&o->cb.list); if (unlikely(!current->bio_list)) return; - list = *current->bio_list; - bio_list_init(current->bio_list); - - while ((bio = bio_list_pop(&list))) { - struct bio_set *bs = bio->bi_pool; - if (unlikely(!bs) || bs == fs_bio_set) { - bio_list_add(current->bio_list, bio); - continue; + for (i = 0; i < 2; i++) { + list = current->bio_list[i]; + bio_list_init(¤t->bio_list[i]); + + while ((bio = bio_list_pop(&list))) { + struct bio_set *bs = bio->bi_pool; + if (unlikely(!bs) || bs == fs_bio_set) { + bio_list_add(¤t->bio_list[i], bio); + continue; + } + + spin_lock(&bs->rescue_lock); + bio_list_add(&bs->rescue_list, bio); + queue_work(bs->rescue_workqueue, &bs->rescue_work); + spin_unlock(&bs->rescue_lock); } - - spin_lock(&bs->rescue_lock); - bio_list_add(&bs->rescue_list, bio); - queue_work(bs->rescue_workqueue, &bs->rescue_work); - spin_unlock(&bs->rescue_lock); } } diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 063c43d83b72..0536658c9d40 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -974,7 +974,8 @@ static void wait_barrier(struct r10conf *conf) !conf->barrier || (atomic_read(&conf->nr_pending) && current->bio_list && - !bio_list_empty(current->bio_list)), + (!bio_list_empty(¤t->bio_list[0]) || + !bio_list_empty(¤t->bio_list[1]))), conf->resync_lock); conf->nr_waiting--; if (!conf->nr_waiting) -- cgit From d1c4e9bf73e739b937ddd9dc4cf0f6de2e6117da Mon Sep 17 00:00:00 2001 From: João Paulo Rechi Vita Date: Mon, 20 Feb 2017 14:50:23 -0500 Subject: platform/x86: asus-wmi: Remove quirk_no_rfkill MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit With the detection introduced in the previous patches, we don't need these static DMI-based quirks anymore. This reverts the following commits: 56a37a72002b "asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UA" a961a285b479 "asus-wmi: Add quirk_no_rfkill_wapf4 for the Asus X456UF" 6b7ff2af5286 "asus-wmi: Add quirk_no_rfkill for the Asus Z550MA" 02db9ff7af18 "asus-wmi: Add quirk_no_rfkill for the Asus U303LB" 2d735244b798 "asus-wmi: Add quirk_no_rfkill for the Asus N552VW" a977e59c0c67 "asus-wmi: Create quirk for airplane_mode LED" Signed-off-by: João Paulo Rechi Vita Signed-off-by: Andy Shevchenko [dvhart: minor commit message corrections] Signed-off-by: Darren Hart (VMware) --- drivers/platform/x86/asus-nb-wmi.c | 49 ++------------------------------------ drivers/platform/x86/asus-wmi.c | 5 +--- drivers/platform/x86/asus-wmi.h | 1 - 3 files changed, 3 insertions(+), 52 deletions(-) (limited to 'drivers') diff --git a/drivers/platform/x86/asus-nb-wmi.c b/drivers/platform/x86/asus-nb-wmi.c index 5be4783e40d4..dea98ffb6f60 100644 --- a/drivers/platform/x86/asus-nb-wmi.c +++ b/drivers/platform/x86/asus-nb-wmi.c @@ -103,15 +103,6 @@ static struct quirk_entry quirk_asus_x200ca = { .wapf = 2, }; -static struct quirk_entry quirk_no_rfkill = { - .no_rfkill = true, -}; - -static struct quirk_entry quirk_no_rfkill_wapf4 = { - .wapf = 4, - .no_rfkill = true, -}; - static struct quirk_entry quirk_asus_ux303ub = { .wmi_backlight_native = true, }; @@ -194,7 +185,7 @@ static const struct dmi_system_id asus_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_MATCH(DMI_PRODUCT_NAME, "X456UA"), }, - .driver_data = &quirk_no_rfkill_wapf4, + .driver_data = &quirk_asus_wapf4, }, { .callback = dmi_matched, @@ -203,7 +194,7 @@ static const struct dmi_system_id asus_quirks[] = { DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_MATCH(DMI_PRODUCT_NAME, "X456UF"), }, - .driver_data = &quirk_no_rfkill_wapf4, + .driver_data = &quirk_asus_wapf4, }, { .callback = dmi_matched, @@ -367,42 +358,6 @@ static const struct dmi_system_id asus_quirks[] = { }, .driver_data = &quirk_asus_x200ca, }, - { - .callback = dmi_matched, - .ident = "ASUSTeK COMPUTER INC. X555UB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_MATCH(DMI_PRODUCT_NAME, "X555UB"), - }, - .driver_data = &quirk_no_rfkill, - }, - { - .callback = dmi_matched, - .ident = "ASUSTeK COMPUTER INC. N552VW", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_MATCH(DMI_PRODUCT_NAME, "N552VW"), - }, - .driver_data = &quirk_no_rfkill, - }, - { - .callback = dmi_matched, - .ident = "ASUSTeK COMPUTER INC. U303LB", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_MATCH(DMI_PRODUCT_NAME, "U303LB"), - }, - .driver_data = &quirk_no_rfkill, - }, - { - .callback = dmi_matched, - .ident = "ASUSTeK COMPUTER INC. Z550MA", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), - DMI_MATCH(DMI_PRODUCT_NAME, "Z550MA"), - }, - .driver_data = &quirk_no_rfkill, - }, { .callback = dmi_matched, .ident = "ASUSTeK COMPUTER INC. UX303UB", diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 8499d3ae4257..8fe5890bf539 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -2111,10 +2111,7 @@ static int asus_wmi_add(struct platform_device *pdev) if (result & (ASUS_WMI_DSTS_PRESENCE_BIT | ASUS_WMI_DSTS_USER_BIT)) asus->driver->wlan_ctrl_by_user = 1; - if (asus->driver->wlan_ctrl_by_user && ashs_present()) - asus->driver->quirks->no_rfkill = 1; - - if (!asus->driver->quirks->no_rfkill) { + if (!(asus->driver->wlan_ctrl_by_user && ashs_present())) { err = asus_wmi_rfkill_init(asus); if (err) goto fail_rfkill; diff --git a/drivers/platform/x86/asus-wmi.h b/drivers/platform/x86/asus-wmi.h index fdff626c3b51..c9589d9342bb 100644 --- a/drivers/platform/x86/asus-wmi.h +++ b/drivers/platform/x86/asus-wmi.h @@ -39,7 +39,6 @@ struct key_entry; struct asus_wmi; struct quirk_entry { - bool no_rfkill; bool hotplug_wireless; bool scalar_panel_brightness; bool store_backlight_power; -- cgit From ecd052250b51c8cee4d9720adea05690dfc77c64 Mon Sep 17 00:00:00 2001 From: David Arcari Date: Thu, 9 Mar 2017 13:28:33 -0500 Subject: net: ethernet: aquantia: call set_irq_affinity_hint before free_irq When a network interface controlled by the aquantia ethernet driver is brought down a warning is output in dmesg (see below). The problem is that aq_pci_func_free_irqs() is calling free_irq() before it is calling irq_set_affinity_hint(). WARNING: CPU: 4 PID: 10068 at kernel/irq/manage.c:1503 __free_irq+0x24d/0x2b0 Call Trace: dump_stack+0x63/0x87 __warn+0xd1/0xf0 warn_slowpath_null+0x1d/0x20 __free_irq+0x24d/0x2b0 free_irq+0x39/0x90 aq_pci_func_free_irqs+0x52/0xa0 [atlantic] aq_nic_stop+0xca/0xd0 [atlantic] aq_ndev_close+0x1d/0x40 [atlantic] __dev_close_many+0x99/0x100 __dev_close+0x67/0xb0 Fixes: 36a4a50f4048 ("net: ethernet: aquantia: switch to pci_alloc_irq_vectors") Cc: Christoph Hellwig Cc: Pavel Belous Signed-off-by: David Arcari Tested-by: Pavel Belous Signed-off-by: David S. Miller --- drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c index 581de71a958a..4c6c882c6a1c 100644 --- a/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c +++ b/drivers/net/ethernet/aquantia/atlantic/aq_pci_func.c @@ -213,9 +213,9 @@ void aq_pci_func_free_irqs(struct aq_pci_func_s *self) if (!((1U << i) & self->msix_entry_mask)) continue; - free_irq(pci_irq_vector(pdev, i), self->aq_vec[i]); if (pdev->msix_enabled) irq_set_affinity_hint(pci_irq_vector(pdev, i), NULL); + free_irq(pci_irq_vector(pdev, i), self->aq_vec[i]); self->msix_entry_mask &= ~(1U << i); } } -- cgit From 7ce101246655935b014b11d81f815342921f5654 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Thu, 9 Mar 2017 14:58:29 -0800 Subject: netvsc: handle select_queue when device is being removed Move the send indirection table from the inner device (netvsc) to the network device context. It is possible that netvsc_device is not present (remove in progress). This solves potential use after free issues when packet is being created during MTU change, shutdown, or queue count changes. Fixes: d8e18ee0fa96 ("netvsc: enhance transmit select_queue") Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/hyperv/hyperv_net.h | 3 ++- drivers/net/hyperv/netvsc.c | 8 ++------ drivers/net/hyperv/netvsc_drv.c | 11 +++-------- 3 files changed, 7 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h index d3e73ac158ae..f9f3dba7a588 100644 --- a/drivers/net/hyperv/hyperv_net.h +++ b/drivers/net/hyperv/hyperv_net.h @@ -700,6 +700,8 @@ struct net_device_context { u32 tx_checksum_mask; + u32 tx_send_table[VRSS_SEND_TAB_SIZE]; + /* Ethtool settings */ u8 duplex; u32 speed; @@ -757,7 +759,6 @@ struct netvsc_device { struct nvsp_message revoke_packet; - u32 send_table[VRSS_SEND_TAB_SIZE]; u32 max_chn; u32 num_chn; spinlock_t sc_lock; /* Protects num_sc_offered variable */ diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c index d35ebd993b38..4c1d8cca247b 100644 --- a/drivers/net/hyperv/netvsc.c +++ b/drivers/net/hyperv/netvsc.c @@ -1136,15 +1136,11 @@ static void netvsc_receive(struct net_device *ndev, static void netvsc_send_table(struct hv_device *hdev, struct nvsp_message *nvmsg) { - struct netvsc_device *nvscdev; struct net_device *ndev = hv_get_drvdata(hdev); + struct net_device_context *net_device_ctx = netdev_priv(ndev); int i; u32 count, *tab; - nvscdev = get_outbound_net_device(hdev); - if (!nvscdev) - return; - count = nvmsg->msg.v5_msg.send_table.count; if (count != VRSS_SEND_TAB_SIZE) { netdev_err(ndev, "Received wrong send-table size:%u\n", count); @@ -1155,7 +1151,7 @@ static void netvsc_send_table(struct hv_device *hdev, nvmsg->msg.v5_msg.send_table.offset); for (i = 0; i < count; i++) - nvscdev->send_table[i] = tab[i]; + net_device_ctx->tx_send_table[i] = tab[i]; } static void netvsc_send_vf(struct net_device_context *net_device_ctx, diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c index bc05c895d958..5ede87f30463 100644 --- a/drivers/net/hyperv/netvsc_drv.c +++ b/drivers/net/hyperv/netvsc_drv.c @@ -206,17 +206,15 @@ static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb, void *accel_priv, select_queue_fallback_t fallback) { struct net_device_context *net_device_ctx = netdev_priv(ndev); - struct netvsc_device *nvsc_dev = net_device_ctx->nvdev; + unsigned int num_tx_queues = ndev->real_num_tx_queues; struct sock *sk = skb->sk; int q_idx = sk_tx_queue_get(sk); - if (q_idx < 0 || skb->ooo_okay || - q_idx >= ndev->real_num_tx_queues) { + if (q_idx < 0 || skb->ooo_okay || q_idx >= num_tx_queues) { u16 hash = __skb_tx_hash(ndev, skb, VRSS_SEND_TAB_SIZE); int new_idx; - new_idx = nvsc_dev->send_table[hash] - % nvsc_dev->num_chn; + new_idx = net_device_ctx->tx_send_table[hash] % num_tx_queues; if (q_idx != new_idx && sk && sk_fullsock(sk) && rcu_access_pointer(sk->sk_dst_cache)) @@ -225,9 +223,6 @@ static u16 netvsc_select_queue(struct net_device *ndev, struct sk_buff *skb, q_idx = new_idx; } - if (unlikely(!nvsc_dev->chan_table[q_idx].channel)) - q_idx = 0; - return q_idx; } -- cgit From b17075d5c1988b83f840d272c795ac17d57ce804 Mon Sep 17 00:00:00 2001 From: Igor Druzhinin Date: Fri, 10 Mar 2017 21:36:22 +0000 Subject: xen-netback: fix race condition on XenBus disconnect In some cases during XenBus disconnect event handling and subsequent queue resource release there may be some TX handlers active on other processors. Use RCU in order to synchronize with them. Signed-off-by: Igor Druzhinin Signed-off-by: David S. Miller --- drivers/net/xen-netback/interface.c | 26 +++++++++++++++++--------- drivers/net/xen-netback/netback.c | 2 +- drivers/net/xen-netback/xenbus.c | 20 ++++++++++---------- 3 files changed, 28 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index 829b26cd4549..8397f6c92451 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -165,13 +165,17 @@ static int xenvif_start_xmit(struct sk_buff *skb, struct net_device *dev) { struct xenvif *vif = netdev_priv(dev); struct xenvif_queue *queue = NULL; - unsigned int num_queues = vif->num_queues; + unsigned int num_queues; u16 index; struct xenvif_rx_cb *cb; BUG_ON(skb->dev != dev); - /* Drop the packet if queues are not set up */ + /* Drop the packet if queues are not set up. + * This handler should be called inside an RCU read section + * so we don't need to enter it here explicitly. + */ + num_queues = READ_ONCE(vif->num_queues); if (num_queues < 1) goto drop; @@ -222,18 +226,18 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev) { struct xenvif *vif = netdev_priv(dev); struct xenvif_queue *queue = NULL; + unsigned int num_queues; u64 rx_bytes = 0; u64 rx_packets = 0; u64 tx_bytes = 0; u64 tx_packets = 0; unsigned int index; - spin_lock(&vif->lock); - if (vif->queues == NULL) - goto out; + rcu_read_lock(); + num_queues = READ_ONCE(vif->num_queues); /* Aggregate tx and rx stats from each queue */ - for (index = 0; index < vif->num_queues; ++index) { + for (index = 0; index < num_queues; ++index) { queue = &vif->queues[index]; rx_bytes += queue->stats.rx_bytes; rx_packets += queue->stats.rx_packets; @@ -241,8 +245,7 @@ static struct net_device_stats *xenvif_get_stats(struct net_device *dev) tx_packets += queue->stats.tx_packets; } -out: - spin_unlock(&vif->lock); + rcu_read_unlock(); vif->dev->stats.rx_bytes = rx_bytes; vif->dev->stats.rx_packets = rx_packets; @@ -378,10 +381,13 @@ static void xenvif_get_ethtool_stats(struct net_device *dev, struct ethtool_stats *stats, u64 * data) { struct xenvif *vif = netdev_priv(dev); - unsigned int num_queues = vif->num_queues; + unsigned int num_queues; int i; unsigned int queue_index; + rcu_read_lock(); + num_queues = READ_ONCE(vif->num_queues); + for (i = 0; i < ARRAY_SIZE(xenvif_stats); i++) { unsigned long accum = 0; for (queue_index = 0; queue_index < num_queues; ++queue_index) { @@ -390,6 +396,8 @@ static void xenvif_get_ethtool_stats(struct net_device *dev, } data[i] = accum; } + + rcu_read_unlock(); } static void xenvif_get_strings(struct net_device *dev, u32 stringset, u8 * data) diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index f9bcf4a665bc..602d408fa25e 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -214,7 +214,7 @@ static void xenvif_fatal_tx_err(struct xenvif *vif) netdev_err(vif->dev, "fatal error; disabling device\n"); vif->disabled = true; /* Disable the vif from queue 0's kthread */ - if (vif->queues) + if (vif->num_queues) xenvif_kick_thread(&vif->queues[0]); } diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c index d2d7cd9145b1..a56d3eab35dd 100644 --- a/drivers/net/xen-netback/xenbus.c +++ b/drivers/net/xen-netback/xenbus.c @@ -495,26 +495,26 @@ static void backend_disconnect(struct backend_info *be) struct xenvif *vif = be->vif; if (vif) { + unsigned int num_queues = vif->num_queues; unsigned int queue_index; - struct xenvif_queue *queues; xen_unregister_watchers(vif); #ifdef CONFIG_DEBUG_FS xenvif_debugfs_delif(vif); #endif /* CONFIG_DEBUG_FS */ xenvif_disconnect_data(vif); - for (queue_index = 0; - queue_index < vif->num_queues; - ++queue_index) - xenvif_deinit_queue(&vif->queues[queue_index]); - spin_lock(&vif->lock); - queues = vif->queues; + /* At this point some of the handlers may still be active + * so we need to have additional synchronization here. + */ vif->num_queues = 0; - vif->queues = NULL; - spin_unlock(&vif->lock); + synchronize_net(); - vfree(queues); + for (queue_index = 0; queue_index < num_queues; ++queue_index) + xenvif_deinit_queue(&vif->queues[queue_index]); + + vfree(vif->queues); + vif->queues = NULL; xenvif_disconnect_ctrl(vif); } -- cgit From 9fa1d7537242bd580ffa99c4725a0407096aad26 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Tue, 28 Feb 2017 10:11:45 +0200 Subject: drm/omap: fix dmabuf mmap for dma_alloc'ed buffers omap_gem_dmabuf_mmap() returns an error (with a WARN) when called for a buffer which is allocated with dma_alloc_*(). This prevents dmabuf mmap from working on SoCs without DMM, e.g. AM4 and OMAP3. I could not find any reason for omap_gem_dmabuf_mmap() rejecting such buffers, and just removing the if() fixes the limitation. Signed-off-by: Tomi Valkeinen --- drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c index af267c35d813..ee5883f59be5 100644 --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c @@ -147,9 +147,6 @@ static int omap_gem_dmabuf_mmap(struct dma_buf *buffer, struct drm_gem_object *obj = buffer->priv; int ret = 0; - if (WARN_ON(!obj->filp)) - return -EINVAL; - ret = drm_gem_mmap_obj(obj, omap_gem_mmap_size(obj), vma); if (ret < 0) return ret; -- cgit From aac66bf5f916f645bd57029490a72c3f91f2c274 Mon Sep 17 00:00:00 2001 From: Matthew Auld Date: Mon, 6 Mar 2017 23:54:01 +0000 Subject: drm/i915: use correct node for handling cache domain eviction It looks like we were incorrectly comparing vma->node against itself instead of the target node, when evicting for a node on systems where we need guard pages between regions with different cache domains. As a consequence we can end up trying to needlessly evict neighbouring nodes, even if they have the same cache domain, and if they were pinned we would fail the eviction. Fixes: 625d988acc28 ("drm/i915: Extract reserving space in the GTT to a helper") Signed-off-by: Matthew Auld Cc: Chris Wilson Cc: Joonas Lahtinen Reviewed-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170306235414.23407-3-matthew.auld@intel.com Signed-off-by: Chris Wilson (cherry picked from commit fe65cbdbc97929e4a522716ed279a36783656142) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/i915_gem_evict.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c index c181b1bb3d2c..3be2503aa042 100644 --- a/drivers/gpu/drm/i915/i915_gem_evict.c +++ b/drivers/gpu/drm/i915/i915_gem_evict.c @@ -293,12 +293,12 @@ int i915_gem_evict_for_node(struct i915_address_space *vm, * those as well to make room for our guard pages. */ if (check_color) { - if (vma->node.start + vma->node.size == node->start) { - if (vma->node.color == node->color) + if (node->start + node->size == target->start) { + if (node->color == target->color) continue; } - if (vma->node.start == node->start + node->size) { - if (vma->node.color == node->color) + if (node->start == target->start + target->size) { + if (node->color == target->color) continue; } } -- cgit From 3a0d137de035cc8c70194d9988ded61825b5ff8a Mon Sep 17 00:00:00 2001 From: Maarten Lankhorst Date: Wed, 8 Mar 2017 13:00:07 +0100 Subject: drm/i915: Nuke skl_update_plane debug message from the pipe update critical section MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit printks are slow so we should not be doing them from the vblank evade critical section. These could explain why we sometimes seem to blow past our 100 usec deadline. The problem has been there ever since commit c331879ce8ea ("drm/i915: skylake sprite plane scaling using shared scalers.") but it may not have been readily visible until commit e1edbd44e23b ("drm/i915: Complain if we take too long under vblank evasion.") increased our chances of noticing it. Signed-off-by: Maarten Lankhorst Cc: Ville Syrjälä Link: http://patchwork.freedesktop.org/patch/msgid/1488974407-25175-1-git-send-email-maarten.lankhorst@linux.intel.com Fixes: c331879ce8ea ("drm/i915: skylake sprite plane scaling using shared scalers") Cc: # v4.2+ Reviewed-by: Ville Syrjälä [mlankhorst: Add missing tags, point to the correct offending commit] (cherry picked from commit d38146b9ee16264ff9a88bf3391ab9f2f5af3646) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_sprite.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c index 9ef54688872a..9481ca9a3ae7 100644 --- a/drivers/gpu/drm/i915/intel_sprite.c +++ b/drivers/gpu/drm/i915/intel_sprite.c @@ -254,9 +254,6 @@ skl_update_plane(struct drm_plane *drm_plane, int scaler_id = plane_state->scaler_id; const struct intel_scaler *scaler; - DRM_DEBUG_KMS("plane = %d PS_PLANE_SEL(plane) = 0x%x\n", - plane_id, PS_PLANE_SEL(plane_id)); - scaler = &crtc_state->scaler_state.scalers[scaler_id]; I915_WRITE(SKL_PS_CTRL(pipe, scaler_id), -- cgit From 6aef660370a9c246956ba6d01eebd8063c4214cb Mon Sep 17 00:00:00 2001 From: Tvrtko Ursulin Date: Fri, 10 Mar 2017 09:32:49 +0000 Subject: drm/i915: Fix forcewake active domain tracking In commit 003342a50021 ("drm/i915: Keep track of active forcewake domains in a bitmask") I forgot to adjust the newly introduce fw_domains_active state across reset. This caused the assert_forcewakes_inactive to trigger during suspend and resume if there were user held forcewakes. v2: Bitmask checks are required since vfuncs are not always present. v3: Move bitmask tracking to get/put vfunc for simplicity. (Chris Wilson) Signed-off-by: Tvrtko Ursulin Fixes: 003342a50021 ("drm/i915: Keep track of active forcewake domains in a bitmask") Testcase: igt/drv_suspend/forcewake Cc: Tvrtko Ursulin Cc: "Paneri, Praveen" Cc: Chris Wilson Cc: Daniel Vetter Cc: Jani Nikula Cc: intel-gfx@lists.freedesktop.org Cc: v4.10+ Reviewed-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170310093249.4484-1-tvrtko.ursulin@linux.intel.com (cherry picked from commit b8473050805f35add97f3ff57570d55a01808df5) Signed-off-by: Jani Nikula --- drivers/gpu/drm/i915/intel_uncore.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index abe08885a5ba..b7ff592b14f5 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -119,6 +119,8 @@ fw_domains_get(struct drm_i915_private *dev_priv, enum forcewake_domains fw_doma for_each_fw_domain_masked(d, fw_domains, dev_priv) fw_domain_wait_ack(d); + + dev_priv->uncore.fw_domains_active |= fw_domains; } static void @@ -130,6 +132,8 @@ fw_domains_put(struct drm_i915_private *dev_priv, enum forcewake_domains fw_doma fw_domain_put(d); fw_domain_posting_read(d); } + + dev_priv->uncore.fw_domains_active &= ~fw_domains; } static void @@ -240,10 +244,8 @@ intel_uncore_fw_release_timer(struct hrtimer *timer) if (WARN_ON(domain->wake_count == 0)) domain->wake_count++; - if (--domain->wake_count == 0) { + if (--domain->wake_count == 0) dev_priv->uncore.funcs.force_wake_put(dev_priv, domain->mask); - dev_priv->uncore.fw_domains_active &= ~domain->mask; - } spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags); @@ -454,10 +456,8 @@ static void __intel_uncore_forcewake_get(struct drm_i915_private *dev_priv, fw_domains &= ~domain->mask; } - if (fw_domains) { + if (fw_domains) dev_priv->uncore.funcs.force_wake_get(dev_priv, fw_domains); - dev_priv->uncore.fw_domains_active |= fw_domains; - } } /** @@ -968,7 +968,6 @@ static noinline void ___force_wake_auto(struct drm_i915_private *dev_priv, fw_domain_arm_timer(domain); dev_priv->uncore.funcs.force_wake_get(dev_priv, fw_domains); - dev_priv->uncore.fw_domains_active |= fw_domains; } static inline void __force_wake_auto(struct drm_i915_private *dev_priv, -- cgit From c5f7c5a9a0f84c511a8a336491f9b8a3060b6517 Mon Sep 17 00:00:00 2001 From: Elena Reshetova Date: Mon, 6 Mar 2017 16:21:16 +0200 Subject: drivers, xen: convert grant_map.users from atomic_t to refcount_t refcount_t type and corresponding API should be used instead of atomic_t when the variable is used as a reference counter. This allows to avoid accidental refcounter overflows that might lead to use-after-free situations. Signed-off-by: Elena Reshetova Signed-off-by: Hans Liljestrand Signed-off-by: Kees Cook Signed-off-by: David Windsor Signed-off-by: Boris Ostrovsky --- drivers/xen/gntdev.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c index c77a0751a311..f3bf8f4e2d6c 100644 --- a/drivers/xen/gntdev.c +++ b/drivers/xen/gntdev.c @@ -36,6 +36,7 @@ #include #include #include +#include #include #include @@ -86,7 +87,7 @@ struct grant_map { int index; int count; int flags; - atomic_t users; + refcount_t users; struct unmap_notify notify; struct ioctl_gntdev_grant_ref *grants; struct gnttab_map_grant_ref *map_ops; @@ -166,7 +167,7 @@ static struct grant_map *gntdev_alloc_map(struct gntdev_priv *priv, int count) add->index = 0; add->count = count; - atomic_set(&add->users, 1); + refcount_set(&add->users, 1); return add; @@ -212,7 +213,7 @@ static void gntdev_put_map(struct gntdev_priv *priv, struct grant_map *map) if (!map) return; - if (!atomic_dec_and_test(&map->users)) + if (!refcount_dec_and_test(&map->users)) return; atomic_sub(map->count, &pages_mapped); @@ -400,7 +401,7 @@ static void gntdev_vma_open(struct vm_area_struct *vma) struct grant_map *map = vma->vm_private_data; pr_debug("gntdev_vma_open %p\n", vma); - atomic_inc(&map->users); + refcount_inc(&map->users); } static void gntdev_vma_close(struct vm_area_struct *vma) @@ -1004,7 +1005,7 @@ static int gntdev_mmap(struct file *flip, struct vm_area_struct *vma) goto unlock_out; } - atomic_inc(&map->users); + refcount_inc(&map->users); vma->vm_ops = &gntdev_vmops; -- cgit From 68c32f9c2a36d410aa242e661506e5b2c2764179 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 13 Mar 2017 13:39:01 +0100 Subject: isdn/gigaset: fix NULL-deref at probe Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer should a malicious device lack endpoints. Fixes: cf7776dc05b8 ("[PATCH] isdn4linux: Siemens Gigaset drivers - direct USB connection") Cc: stable # 2.6.17 Cc: Hansjoerg Lipp Signed-off-by: Johan Hovold Signed-off-by: David S. Miller --- drivers/isdn/gigaset/bas-gigaset.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/isdn/gigaset/bas-gigaset.c b/drivers/isdn/gigaset/bas-gigaset.c index 11e13c56126f..2da3ff650e1d 100644 --- a/drivers/isdn/gigaset/bas-gigaset.c +++ b/drivers/isdn/gigaset/bas-gigaset.c @@ -2317,6 +2317,9 @@ static int gigaset_probe(struct usb_interface *interface, return -ENODEV; } + if (hostif->desc.bNumEndpoints < 1) + return -ENODEV; + dev_info(&udev->dev, "%s: Device matched (Vendor: 0x%x, Product: 0x%x)\n", __func__, le16_to_cpu(udev->descriptor.idVendor), -- cgit From 6e526fdff7be4f13b24f929a04c0e9ae6761291e Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 13 Mar 2017 13:42:03 +0100 Subject: net: wimax/i2400m: fix NULL-deref at probe Make sure to check the number of endpoints to avoid dereferencing a NULL-pointer or accessing memory beyond the endpoint array should a malicious device lack the expected endpoints. The endpoints are specifically dereferenced in the i2400m_bootrom_init path during probe (e.g. in i2400mu_tx_bulk_out). Fixes: f398e4240fce ("i2400m/USB: probe/disconnect, dev init/shutdown and reset backends") Cc: Inaky Perez-Gonzalez Signed-off-by: Johan Hovold Signed-off-by: David S. Miller --- drivers/net/wimax/i2400m/usb.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/wimax/i2400m/usb.c b/drivers/net/wimax/i2400m/usb.c index e7f5910a6519..f8eb66ef2944 100644 --- a/drivers/net/wimax/i2400m/usb.c +++ b/drivers/net/wimax/i2400m/usb.c @@ -467,6 +467,9 @@ int i2400mu_probe(struct usb_interface *iface, struct i2400mu *i2400mu; struct usb_device *usb_dev = interface_to_usbdev(iface); + if (iface->cur_altsetting->desc.bNumEndpoints < 4) + return -ENODEV; + if (usb_dev->speed != USB_SPEED_HIGH) dev_err(dev, "device not connected as high speed\n"); -- cgit From 6e7408acd04d06c04981c0c0fb5a2462b16fae4f Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Sun, 12 Mar 2017 18:12:56 +0100 Subject: cpufreq: intel_pstate: Update pid_params.sample_rate_ns in pid_param_set() Fix the debugfs interface for PID tuning to actually update pid_params.sample_rate_ns on PID parameters updates, as changing pid_params.sample_rate_ms via debugfs has no effect now. Fixes: a4675fbc4a7a (cpufreq: intel_pstate: Replace timers with utilization update callbacks) Signed-off-by: Rafael J. Wysocki Acked-by: Viresh Kumar --- drivers/cpufreq/intel_pstate.c | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 3d37219a0dd7..f9fe910f3b83 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -989,6 +989,7 @@ static void intel_pstate_update_policies(void) static int pid_param_set(void *data, u64 val) { *(u32 *)data = val; + pid_params.sample_rate_ns = pid_params.sample_rate_ms * NSEC_PER_MSEC; intel_pstate_reset_all_pid(); return 0; } -- cgit From c80498e36d4ef3e24599d363c622fbf22a1293cc Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Mon, 13 Mar 2017 16:24:03 +0100 Subject: vxlan: fix ovs support The required changes in the function vxlan_dev_create() were missing in commit 8bcdc4f3a20b. The vxlan device is not registered anymore after this patch and the error path causes an stack dump: WARNING: CPU: 3 PID: 1498 at net/core/dev.c:6713 rollback_registered_many+0x9d/0x3f0 Fixes: 8bcdc4f3a20b ("vxlan: add changelink support") CC: Roopa Prabhu Signed-off-by: Nicolas Dichtel Acked-by: Roopa Prabhu Signed-off-by: David S. Miller --- drivers/net/vxlan.c | 73 +++++++++++++++++++++++++++++------------------------ 1 file changed, 40 insertions(+), 33 deletions(-) (limited to 'drivers') diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index e375560cc74e..bdb6ae16d4a8 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -2976,6 +2976,44 @@ static int vxlan_dev_configure(struct net *src_net, struct net_device *dev, return 0; } +static int __vxlan_dev_create(struct net *net, struct net_device *dev, + struct vxlan_config *conf) +{ + struct vxlan_net *vn = net_generic(net, vxlan_net_id); + struct vxlan_dev *vxlan = netdev_priv(dev); + int err; + + err = vxlan_dev_configure(net, dev, conf, false); + if (err) + return err; + + dev->ethtool_ops = &vxlan_ethtool_ops; + + /* create an fdb entry for a valid default destination */ + if (!vxlan_addr_any(&vxlan->default_dst.remote_ip)) { + err = vxlan_fdb_create(vxlan, all_zeros_mac, + &vxlan->default_dst.remote_ip, + NUD_REACHABLE | NUD_PERMANENT, + NLM_F_EXCL | NLM_F_CREATE, + vxlan->cfg.dst_port, + vxlan->default_dst.remote_vni, + vxlan->default_dst.remote_vni, + vxlan->default_dst.remote_ifindex, + NTF_SELF); + if (err) + return err; + } + + err = register_netdevice(dev); + if (err) { + vxlan_fdb_delete_default(vxlan, vxlan->default_dst.remote_vni); + return err; + } + + list_add(&vxlan->next, &vn->vxlan_list); + return 0; +} + static int vxlan_nl2conf(struct nlattr *tb[], struct nlattr *data[], struct net_device *dev, struct vxlan_config *conf, bool changelink) @@ -3172,8 +3210,6 @@ static int vxlan_nl2conf(struct nlattr *tb[], struct nlattr *data[], static int vxlan_newlink(struct net *src_net, struct net_device *dev, struct nlattr *tb[], struct nlattr *data[]) { - struct vxlan_net *vn = net_generic(src_net, vxlan_net_id); - struct vxlan_dev *vxlan = netdev_priv(dev); struct vxlan_config conf; int err; @@ -3181,36 +3217,7 @@ static int vxlan_newlink(struct net *src_net, struct net_device *dev, if (err) return err; - err = vxlan_dev_configure(src_net, dev, &conf, false); - if (err) - return err; - - dev->ethtool_ops = &vxlan_ethtool_ops; - - /* create an fdb entry for a valid default destination */ - if (!vxlan_addr_any(&vxlan->default_dst.remote_ip)) { - err = vxlan_fdb_create(vxlan, all_zeros_mac, - &vxlan->default_dst.remote_ip, - NUD_REACHABLE | NUD_PERMANENT, - NLM_F_EXCL | NLM_F_CREATE, - vxlan->cfg.dst_port, - vxlan->default_dst.remote_vni, - vxlan->default_dst.remote_vni, - vxlan->default_dst.remote_ifindex, - NTF_SELF); - if (err) - return err; - } - - err = register_netdevice(dev); - if (err) { - vxlan_fdb_delete_default(vxlan, vxlan->default_dst.remote_vni); - return err; - } - - list_add(&vxlan->next, &vn->vxlan_list); - - return 0; + return __vxlan_dev_create(src_net, dev, &conf); } static int vxlan_changelink(struct net_device *dev, struct nlattr *tb[], @@ -3440,7 +3447,7 @@ struct net_device *vxlan_dev_create(struct net *net, const char *name, if (IS_ERR(dev)) return dev; - err = vxlan_dev_configure(net, dev, conf, false); + err = __vxlan_dev_create(net, dev, conf); if (err < 0) { free_netdev(dev); return ERR_PTR(err); -- cgit From 3f8ed54aee491bbb83656592c2d0ad7b78d045ca Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada Date: Mon, 13 Mar 2017 18:30:12 -0700 Subject: cpufreq: intel_pstate: Correct frequency setting in the HWP mode In the functions intel_pstate_hwp_set(), min/max range from HWP capability MSR along with max_perf_pct and min_perf_pct, is used to set the HWP request MSR. In some cases this doesn't result in the correct HWP max/min in HWP request. For example: In the following case: HWP capabilities from MSR 0x771 0x70a1220 Here cpufreq min/max frequencies from above MSR dump are 700MHz and 3.2GHz respectively. This will result in hwp_min = 0x07 hwp_max = 0x20 To limit max frequency to 2GHz: perf_limits->max_perf_pct = 63 (2GHz as a percent of 3.2GHz rounded up) With the current calculation: adj_range = max_perf_pct * range / 100; adj_range = 63 * (32 - 7) / 100 adj_range = 15 max = hw_min + adj_range; max = 7 + 15 = 22 This will result in HWP request of 0x160f, which will result in a frequency cap of 2.2GHz not 2GHz. The problem with the above calculation is that hwp_min of 7 is treated as 0% in the range. But max_perf_pct is calculated with respect to minimum as 0 and max as 3.2GHz or hwp_max, so adding hwp_min to it will result in more than the desired. Since the min_perf_pct and max_perf_pct is already a percent of max frequency or hwp_max, this min/max HWP request value can be calculated directly applying these percentage to hwp_max. Signed-off-by: Srinivas Pandruvada Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index f9fe910f3b83..ee12641ee010 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -845,7 +845,7 @@ static struct freq_attr *hwp_cpufreq_attrs[] = { static void intel_pstate_hwp_set(struct cpufreq_policy *policy) { - int min, hw_min, max, hw_max, cpu, range, adj_range; + int min, hw_min, max, hw_max, cpu; struct perf_limits *perf_limits = limits; u64 value, cap; @@ -863,20 +863,17 @@ static void intel_pstate_hwp_set(struct cpufreq_policy *policy) hw_max = HWP_GUARANTEED_PERF(cap); else hw_max = HWP_HIGHEST_PERF(cap); - range = hw_max - hw_min; max_perf_pct = perf_limits->max_perf_pct; min_perf_pct = perf_limits->min_perf_pct; + min = hw_max * min_perf_pct / 100; rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); - adj_range = min_perf_pct * range / 100; - min = hw_min + adj_range; + value &= ~HWP_MIN_PERF(~0L); value |= HWP_MIN_PERF(min); - adj_range = max_perf_pct * range / 100; - max = hw_min + adj_range; - + max = hw_max * max_perf_pct / 100; value &= ~HWP_MAX_PERF(~0L); value |= HWP_MAX_PERF(max); -- cgit From 02bb56ddc6711639c549d81c7b9f6d845da243a9 Mon Sep 17 00:00:00 2001 From: Zhao Qiang Date: Tue, 14 Mar 2017 09:38:33 +0800 Subject: ucc/hdlc: fix two little issue 1. modify bd_status from u32 to u16 in function hdlc_rx_done, because bd_status register is 16bits 2. write bd_length register before writing bd_status register Signed-off-by: Zhao Qiang Signed-off-by: David S. Miller --- drivers/net/wan/fsl_ucc_hdlc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index a5045b5279d7..6742ae605660 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -381,8 +381,8 @@ static netdev_tx_t ucc_hdlc_tx(struct sk_buff *skb, struct net_device *dev) /* set bd status and length */ bd_status = (bd_status & T_W_S) | T_R_S | T_I_S | T_L_S | T_TC_S; - iowrite16be(bd_status, &bd->status); iowrite16be(skb->len, &bd->length); + iowrite16be(bd_status, &bd->status); /* Move to next BD in the ring */ if (!(bd_status & T_W_S)) @@ -457,7 +457,7 @@ static int hdlc_rx_done(struct ucc_hdlc_private *priv, int rx_work_limit) struct sk_buff *skb; hdlc_device *hdlc = dev_to_hdlc(dev); struct qe_bd *bd; - u32 bd_status; + u16 bd_status; u16 length, howmany = 0; u8 *bdbuffer; int i; -- cgit From b20e2d54789c6acbf6bd0efdbec2cf5fa4d90ef1 Mon Sep 17 00:00:00 2001 From: Hannes Frederic Sowa Date: Mon, 13 Mar 2017 00:00:26 +0100 Subject: tun: fix premature POLLOUT notification on tun devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit aszlig observed failing ssh tunnels (-w) during initialization since commit cc9da6cc4f56e0 ("ipv6: addrconf: use stable address generator for ARPHRD_NONE"). We already had reports that the mentioned commit breaks Juniper VPN connections. I can't clearly say that the Juniper VPN client has the same problem, but it is worth a try to hint to this patch. Because of the early generation of link local addresses, the kernel now can start asking for routers on the local subnet much earlier than usual. Those router solicitation packets arrive inside the ssh channels and should be transmitted to the tun fd before the configuration scripts might have upped the interface and made it ready for transmission. ssh polls on the interface and receives back a POLL_OUT. It tries to send the earily router solicitation packet to the tun interface. Unfortunately it hasn't been up'ed yet by config scripts, thus failing with -EIO. ssh doesn't retry again and considers the tun interface broken forever. Link: https://bugzilla.kernel.org/show_bug.cgi?id=121131 Fixes: cc9da6cc4f56 ("ipv6: addrconf: use stable address generator for ARPHRD_NONE") Cc: Bjørn Mork Reported-by: Valdis Kletnieks Cc: Valdis Kletnieks Reported-by: Jonas Lippuner Cc: Jonas Lippuner Reported-by: aszlig Cc: aszlig Signed-off-by: Hannes Frederic Sowa Signed-off-by: David S. Miller --- drivers/net/tun.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/tun.c b/drivers/net/tun.c index f58b7d850114..34cc3c590aa5 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -822,7 +822,18 @@ static void tun_net_uninit(struct net_device *dev) /* Net device open. */ static int tun_net_open(struct net_device *dev) { + struct tun_struct *tun = netdev_priv(dev); + int i; + netif_tx_start_all_queues(dev); + + for (i = 0; i < tun->numqueues; i++) { + struct tun_file *tfile; + + tfile = rtnl_dereference(tun->tfiles[i]); + tfile->socket.sk->sk_write_space(tfile->socket.sk); + } + return 0; } @@ -1103,9 +1114,10 @@ static unsigned int tun_chr_poll(struct file *file, poll_table *wait) if (!skb_array_empty(&tfile->tx_array)) mask |= POLLIN | POLLRDNORM; - if (sock_writeable(sk) || - (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) && - sock_writeable(sk))) + if (tun->dev->flags & IFF_UP && + (sock_writeable(sk) || + (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) && + sock_writeable(sk)))) mask |= POLLOUT | POLLWRNORM; if (tun->dev->reg_state != NETREG_REGISTERED) -- cgit From abf8315f71dc5a2ee56fb60830dcb2861982dc91 Mon Sep 17 00:00:00 2001 From: Jyri Sarha Date: Tue, 31 Jan 2017 16:18:42 +0200 Subject: drm/tilcdc: Fix hardcoded fail-return value in tilcdc_crtc_create() Fix badly hardcoded return return value under fail-label. All goto branches to the label set the "ret"-variable accordingly. Signed-off-by: Jyri Sarha Reviewed-by: Gabriel Krisman Bertazi --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index f80bf9385e41..abcbcd9f5851 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -1036,5 +1036,5 @@ int tilcdc_crtc_create(struct drm_device *dev) fail: tilcdc_crtc_destroy(crtc); - return -ENOMEM; + return ret; } -- cgit From 11abbc9f39e002a2b25657e00abac8056cb39e93 Mon Sep 17 00:00:00 2001 From: Jyri Sarha Date: Wed, 1 Mar 2017 10:30:28 +0200 Subject: drm/tilcdc: Set framebuffer DMA address to HW only if CRTC is enabled Touching HW while clocks are off is a serious error and for instance breaks suspend functionality. After this patch tilcdc_crtc_update_fb() always updates the primary plane's framebuffer pointer, increases fb's reference count and stores vblank event. tilcdc_crtc_update_fb() only writes the fb's DMA address to HW if the crtc is enabled, as tilcdc_crtc_enable() takes care of writing the address on enable. This patch also refactors the tilcdc_crtc_update_fb() a bit. Number of subsequent small changes had made it almost unreadable. There should be no other functional changes but checking the CRTC's enable state. However, the locking goes a bit differently and some of the redundant checks have been removed in this new version. The enable_lock should be enough to protect the access to tilcdc_crtc->enabled. The irq_lock protects the access to last_vblank and next_fb. The check for vrefresh and last_vblank being valid is redundant, as the vrefresh should be always valid if the CRTC is enabled and now last_vblank should be too, because it is initialized to current time when CRTC raster is enabled. If for some reason the values are not correctly initialized the division by zero warning is quite appropriate. Signed-off-by: Jyri Sarha Reviewed-by: Tomi Valkeinen --- drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 35 +++++++++++++++++++++++------------ 1 file changed, 23 insertions(+), 12 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index abcbcd9f5851..d745e8b50fb8 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -464,6 +464,7 @@ static void tilcdc_crtc_enable(struct drm_crtc *crtc) { struct drm_device *dev = crtc->dev; struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); + unsigned long flags; WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); mutex_lock(&tilcdc_crtc->enable_lock); @@ -484,7 +485,17 @@ static void tilcdc_crtc_enable(struct drm_crtc *crtc) tilcdc_write_mask(dev, LCDC_RASTER_CTRL_REG, LCDC_PALETTE_LOAD_MODE(DATA_ONLY), LCDC_PALETTE_LOAD_MODE_MASK); + + /* There is no real chance for a race here as the time stamp + * is taken before the raster DMA is started. The spin-lock is + * taken to have a memory barrier after taking the time-stamp + * and to avoid a context switch between taking the stamp and + * enabling the raster. + */ + spin_lock_irqsave(&tilcdc_crtc->irq_lock, flags); + tilcdc_crtc->last_vblank = ktime_get(); tilcdc_set(dev, LCDC_RASTER_CTRL_REG, LCDC_RASTER_ENABLE); + spin_unlock_irqrestore(&tilcdc_crtc->irq_lock, flags); drm_crtc_vblank_on(crtc); @@ -539,7 +550,6 @@ static void tilcdc_crtc_off(struct drm_crtc *crtc, bool shutdown) } drm_flip_work_commit(&tilcdc_crtc->unref_work, priv->wq); - tilcdc_crtc->last_vblank = 0; tilcdc_crtc->enabled = false; mutex_unlock(&tilcdc_crtc->enable_lock); @@ -602,7 +612,6 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc, { struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); struct drm_device *dev = crtc->dev; - unsigned long flags; WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); @@ -614,28 +623,30 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc, drm_framebuffer_reference(fb); crtc->primary->fb = fb; + tilcdc_crtc->event = event; - spin_lock_irqsave(&tilcdc_crtc->irq_lock, flags); + mutex_lock(&tilcdc_crtc->enable_lock); - if (crtc->hwmode.vrefresh && ktime_to_ns(tilcdc_crtc->last_vblank)) { + if (tilcdc_crtc->enabled) { + unsigned long flags; ktime_t next_vblank; s64 tdiff; - next_vblank = ktime_add_us(tilcdc_crtc->last_vblank, - 1000000 / crtc->hwmode.vrefresh); + spin_lock_irqsave(&tilcdc_crtc->irq_lock, flags); + next_vblank = ktime_add_us(tilcdc_crtc->last_vblank, + 1000000 / crtc->hwmode.vrefresh); tdiff = ktime_to_us(ktime_sub(next_vblank, ktime_get())); if (tdiff < TILCDC_VBLANK_SAFETY_THRESHOLD_US) tilcdc_crtc->next_fb = fb; - } - - if (tilcdc_crtc->next_fb != fb) - set_scanout(crtc, fb); + else + set_scanout(crtc, fb); - tilcdc_crtc->event = event; + spin_unlock_irqrestore(&tilcdc_crtc->irq_lock, flags); + } - spin_unlock_irqrestore(&tilcdc_crtc->irq_lock, flags); + mutex_unlock(&tilcdc_crtc->enable_lock); return 0; } -- cgit From 0977762f6d15f13caccc20d71a5dec47d098907d Mon Sep 17 00:00:00 2001 From: Song Liu Date: Mon, 13 Mar 2017 13:44:35 -0700 Subject: md/r5cache: fix set_syndrome_sources() for data in cache Before this patch, device InJournal will be included in prexor (SYNDROME_SRC_WANT_DRAIN) but not in reconstruct (SYNDROME_SRC_WRITTEN). So it will break parity calculation. With srctype == SYNDROME_SRC_WRITTEN, we need include both dev with non-null ->written and dev with R5_InJournal. This fixes logic in 1e6d690(md/r5cache: caching phase of r5cache) Cc: stable@vger.kernel.org (v4.10+) Signed-off-by: Song Liu Signed-off-by: Shaohua Li --- drivers/md/raid5.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 6bfedfcf41c1..ed5cd705b985 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1401,7 +1401,8 @@ static int set_syndrome_sources(struct page **srcs, (test_bit(R5_Wantdrain, &dev->flags) || test_bit(R5_InJournal, &dev->flags))) || (srctype == SYNDROME_SRC_WRITTEN && - dev->written)) { + (dev->written || + test_bit(R5_InJournal, &dev->flags)))) { if (test_bit(R5_InJournal, &dev->flags)) srcs[slot] = sh->dev[i].orig_page; else -- cgit From 8c53ad2139137dd4bf506a2c2b888de3816e8f75 Mon Sep 17 00:00:00 2001 From: Rex Zhu Date: Mon, 13 Mar 2017 15:14:08 +0800 Subject: drm/amd/powerplay: fix copy error in smu7_clockpoweragting.c Signed-off-by: Rex Zhu Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c index 8cf71f3c6d0e..261b828ad590 100644 --- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c +++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_clockpowergating.c @@ -178,7 +178,7 @@ int smu7_powergate_vce(struct pp_hwmgr *hwmgr, bool bgate) if (bgate) { cgs_set_powergating_state(hwmgr->device, AMD_IP_BLOCK_TYPE_VCE, - AMD_PG_STATE_UNGATE); + AMD_PG_STATE_GATE); cgs_set_clockgating_state(hwmgr->device, AMD_IP_BLOCK_TYPE_VCE, AMD_CG_STATE_GATE); -- cgit From 11353b9d10392e79e32603d2178e75feb25eaf0d Mon Sep 17 00:00:00 2001 From: Zhilong Liu Date: Tue, 14 Mar 2017 15:52:26 +0800 Subject: md/raid1: fix a trivial typo in comments raid1.c: fix a trivial typo in comments of freeze_array(). Cc: Jack Wang Cc: Guoqing Jiang Cc: John Stoffel Acked-by: Coly Li Signed-off-by: Zhilong Liu Signed-off-by: Shaohua Li --- drivers/md/raid1.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index c33e96e33b8e..a34f58772022 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -1027,7 +1027,7 @@ static int get_unqueued_pending(struct r1conf *conf) static void freeze_array(struct r1conf *conf, int extra) { /* Stop sync I/O and normal I/O and wait for everything to - * go quite. + * go quiet. * This is called in two situations: * 1) management command handlers (reshape, remove disk, quiesce). * 2) one normal I/O request failed. -- cgit From f004ec065b4879d6bc9ba0211af2169b3ce3097f Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 14 Mar 2017 14:00:00 +0100 Subject: mlxsw: reg: Fix SPVM max record count The num_rec field is 8 bit, so the maximal count number is 255. This fixes vlans not being enabled for wider ranges than 255. Fixes: b2e345f9a454 ("mlxsw: reg: Add Switch Port VID and Switch Port VLAN Membership registers definitions") Signed-off-by: Jiri Pirko Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 0899e2d310e2..65e19422b80a 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -769,7 +769,7 @@ static inline void mlxsw_reg_spvid_pack(char *payload, u8 local_port, u16 pvid) #define MLXSW_REG_SPVM_ID 0x200F #define MLXSW_REG_SPVM_BASE_LEN 0x04 /* base length, without records */ #define MLXSW_REG_SPVM_REC_LEN 0x04 /* record length */ -#define MLXSW_REG_SPVM_REC_MAX_COUNT 256 +#define MLXSW_REG_SPVM_REC_MAX_COUNT 255 #define MLXSW_REG_SPVM_LEN (MLXSW_REG_SPVM_BASE_LEN + \ MLXSW_REG_SPVM_REC_LEN * MLXSW_REG_SPVM_REC_MAX_COUNT) -- cgit From e9093b1183bbac462d2caef3eac165778c0b1bf1 Mon Sep 17 00:00:00 2001 From: Jiri Pirko Date: Tue, 14 Mar 2017 14:00:01 +0100 Subject: mlxsw: reg: Fix SPVMLR max record count The num_rec field is 8 bit, so the maximal count number is 255. This fixes vlans learning not being enabled for wider ranges than 255. Fixes: a4feea74cd7a ("mlxsw: reg: Add Switch Port VLAN MAC Learning register definition") Signed-off-by: Jiri Pirko Reviewed-by: Ido Schimmel Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlxsw/reg.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/mellanox/mlxsw/reg.h b/drivers/net/ethernet/mellanox/mlxsw/reg.h index 65e19422b80a..d9616daf8a70 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/reg.h +++ b/drivers/net/ethernet/mellanox/mlxsw/reg.h @@ -1702,7 +1702,7 @@ static inline void mlxsw_reg_sfmr_pack(char *payload, #define MLXSW_REG_SPVMLR_ID 0x2020 #define MLXSW_REG_SPVMLR_BASE_LEN 0x04 /* base length, without records */ #define MLXSW_REG_SPVMLR_REC_LEN 0x04 /* record length */ -#define MLXSW_REG_SPVMLR_REC_MAX_COUNT 256 +#define MLXSW_REG_SPVMLR_REC_MAX_COUNT 255 #define MLXSW_REG_SPVMLR_LEN (MLXSW_REG_SPVMLR_BASE_LEN + \ MLXSW_REG_SPVMLR_REC_LEN * \ MLXSW_REG_SPVMLR_REC_MAX_COUNT) -- cgit From f3e48119b97f56fb09310c95d49da122a27003d7 Mon Sep 17 00:00:00 2001 From: Ram Amrani Date: Tue, 14 Mar 2017 15:25:58 +0200 Subject: qed: Align CIDs according to DORQ requirement The Doorbell HW block can be configured at a granularity of 16 x CIDs, so we need to make sure that the actual number of CIDs configured would be a multiplication of 16. Today, when RoCE is enabled - given that the number is unaligned, doorbelling the higher CIDs would fail to reach the firmware and would eventually timeout. Fixes: dbb799c39717 ("qed: Initialize hardware for new protocols") Signed-off-by: Ram Amrani Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_cxt.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c index d42d03df751a..7e3a6fed3da6 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c +++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c @@ -422,8 +422,9 @@ static void qed_cxt_set_proto_cid_count(struct qed_hwfn *p_hwfn, u32 page_sz = p_mgr->clients[ILT_CLI_CDUC].p_size.val; u32 cxt_size = CONN_CXT_SIZE(p_hwfn); u32 elems_per_page = ILT_PAGE_IN_BYTES(page_sz) / cxt_size; + u32 align = elems_per_page * DQ_RANGE_ALIGN; - p_conn->cid_count = roundup(p_conn->cid_count, elems_per_page); + p_conn->cid_count = roundup(p_conn->cid_count, align); } } -- cgit From 3ef310a7d99216e0fbdff29f0cb13bc54180373a Mon Sep 17 00:00:00 2001 From: Tomer Tayar Date: Tue, 14 Mar 2017 15:25:59 +0200 Subject: qed: Prevent creation of too-big u32-chains Current Logic would allow the creation of a chain with U32_MAX + 1 elements, when the actual maximum supported by the driver infrastructure is U32_MAX. Fixes: a91eb52abb50 ("qed: Revisit chain implementation") Signed-off-by: Tomer Tayar Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_dev.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c index e2a081ceaf52..e518f914eab1 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_dev.c +++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c @@ -2389,9 +2389,8 @@ qed_chain_alloc_sanity_check(struct qed_dev *cdev, * size/capacity fields are of a u32 type. */ if ((cnt_type == QED_CHAIN_CNT_TYPE_U16 && - chain_size > 0x10000) || - (cnt_type == QED_CHAIN_CNT_TYPE_U32 && - chain_size > 0x100000000ULL)) { + chain_size > ((u32)U16_MAX + 1)) || + (cnt_type == QED_CHAIN_CNT_TYPE_U32 && chain_size > U32_MAX)) { DP_NOTICE(cdev, "The actual chain size (0x%llx) is larger than the maximal possible value\n", chain_size); -- cgit From 752ecb2da11124a948567076b60767dc8034cfa5 Mon Sep 17 00:00:00 2001 From: "Mintz, Yuval" Date: Tue, 14 Mar 2017 15:26:00 +0200 Subject: qed: Fix mapping leak on LL2 rx flow When receiving an Rx LL2 packet, qed fails to unmap the previous buffer. Fixes: 0a7fb11c23c0 ("qed: Add Light L2 support"); Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_ll2.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c index 5fb34db377c8..29ae5ec2ac2d 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c @@ -211,6 +211,8 @@ static void qed_ll2b_complete_rx_packet(struct qed_hwfn *p_hwfn, /* If need to reuse or there's no replacement buffer, repost this */ if (rc) goto out_post; + dma_unmap_single(&cdev->pdev->dev, buffer->phys_addr, + cdev->ll2->rx_size, DMA_FROM_DEVICE); skb = build_skb(buffer->data, 0); if (!skb) { -- cgit From 4621ceb279d065151eb940ce8a4728b10c0646c7 Mon Sep 17 00:00:00 2001 From: "Mintz, Yuval" Date: Tue, 14 Mar 2017 15:26:01 +0200 Subject: qed: Free previous connections when releasing iSCSI Fixes: fc831825f99e ("qed: Add support for hardware offloaded iSCSI") Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c index 3a44d6b395fa..7e73b05eeab8 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c +++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c @@ -786,6 +786,23 @@ static void qed_iscsi_release_connection(struct qed_hwfn *p_hwfn, spin_unlock_bh(&p_hwfn->p_iscsi_info->lock); } +void qed_iscsi_free_connection(struct qed_hwfn *p_hwfn, + struct qed_iscsi_conn *p_conn) +{ + qed_chain_free(p_hwfn->cdev, &p_conn->xhq); + qed_chain_free(p_hwfn->cdev, &p_conn->uhq); + qed_chain_free(p_hwfn->cdev, &p_conn->r2tq); + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct tcp_upload_params), + p_conn->tcp_upload_params_virt_addr, + p_conn->tcp_upload_params_phys_addr); + dma_free_coherent(&p_hwfn->cdev->pdev->dev, + sizeof(struct scsi_terminate_extra_params), + p_conn->queue_cnts_virt_addr, + p_conn->queue_cnts_phys_addr); + kfree(p_conn); +} + struct qed_iscsi_info *qed_iscsi_alloc(struct qed_hwfn *p_hwfn) { struct qed_iscsi_info *p_iscsi_info; @@ -807,6 +824,17 @@ void qed_iscsi_setup(struct qed_hwfn *p_hwfn, void qed_iscsi_free(struct qed_hwfn *p_hwfn, struct qed_iscsi_info *p_iscsi_info) { + struct qed_iscsi_conn *p_conn = NULL; + + while (!list_empty(&p_hwfn->p_iscsi_info->free_list)) { + p_conn = list_first_entry(&p_hwfn->p_iscsi_info->free_list, + struct qed_iscsi_conn, list_entry); + if (p_conn) { + list_del(&p_conn->list_entry); + qed_iscsi_free_connection(p_hwfn, p_conn); + } + } + kfree(p_iscsi_info); } -- cgit From 1df2adedcce17ad4a39fba74f0e2b611f797fe10 Mon Sep 17 00:00:00 2001 From: Ram Amrani Date: Tue, 14 Mar 2017 15:26:02 +0200 Subject: qed: Fix interrupt flags on Rx LL2 Before iterating over the the LL2 Rx ring, the ring's spinlock is taken via spin_lock_irqsave(). The actual processing of the packet [including handling by the protocol driver] is done without said lock, so qed releases the spinlock and re-claims it afterwards. Problem is that the final spin_lock_irqrestore() at the end of the iteration uses the original flags saved from the initial irqsave() instead of the flags from the most recent irqsave(). So it's possible that the interrupt status would be incorrect at the end of the processing. Fixes: 0a7fb11c23c0 ("qed: Add Light L2 support"); CC: Ram Amrani Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_ll2.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_ll2.c b/drivers/net/ethernet/qlogic/qed/qed_ll2.c index 29ae5ec2ac2d..0d3cef409c96 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_ll2.c +++ b/drivers/net/ethernet/qlogic/qed/qed_ll2.c @@ -476,7 +476,7 @@ qed_ll2_rxq_completion_gsi(struct qed_hwfn *p_hwfn, static int qed_ll2_rxq_completion_reg(struct qed_hwfn *p_hwfn, struct qed_ll2_info *p_ll2_conn, union core_rx_cqe_union *p_cqe, - unsigned long lock_flags, + unsigned long *p_lock_flags, bool b_last_cqe) { struct qed_ll2_rx_queue *p_rx = &p_ll2_conn->rx_queue; @@ -497,10 +497,10 @@ static int qed_ll2_rxq_completion_reg(struct qed_hwfn *p_hwfn, "Mismatch between active_descq and the LL2 Rx chain\n"); list_add_tail(&p_pkt->list_entry, &p_rx->free_descq); - spin_unlock_irqrestore(&p_rx->lock, lock_flags); + spin_unlock_irqrestore(&p_rx->lock, *p_lock_flags); qed_ll2b_complete_rx_packet(p_hwfn, p_ll2_conn->my_id, p_pkt, &p_cqe->rx_cqe_fp, b_last_cqe); - spin_lock_irqsave(&p_rx->lock, lock_flags); + spin_lock_irqsave(&p_rx->lock, *p_lock_flags); return 0; } @@ -540,7 +540,8 @@ static int qed_ll2_rxq_completion(struct qed_hwfn *p_hwfn, void *cookie) break; case CORE_RX_CQE_TYPE_REGULAR: rc = qed_ll2_rxq_completion_reg(p_hwfn, p_ll2_conn, - cqe, flags, b_last_cqe); + cqe, &flags, + b_last_cqe); break; default: rc = -EIO; -- cgit From db31d330e8b0ad8926725eb2af6f6422c07ca7ab Mon Sep 17 00:00:00 2001 From: "Mintz, Yuval" Date: Tue, 14 Mar 2017 15:26:03 +0200 Subject: qed: Correct out-of-bound access in OOO history Need to set the number of entries in database, otherwise the logic would quickly surpass the array. Fixes: 1d6cff4fca43 ("qed: Add iSCSI out of order packet handling") Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_ooo.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_ooo.c b/drivers/net/ethernet/qlogic/qed/qed_ooo.c index 7d731c6cb892..378afce58b3f 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_ooo.c +++ b/drivers/net/ethernet/qlogic/qed/qed_ooo.c @@ -159,6 +159,8 @@ struct qed_ooo_info *qed_ooo_alloc(struct qed_hwfn *p_hwfn) if (!p_ooo_info->ooo_history.p_cqes) goto no_history_mem; + p_ooo_info->ooo_history.num_of_cqes = QED_MAX_NUM_OOO_HISTORY_ENTRIES; + return p_ooo_info; no_history_mem: -- cgit From 6b116b1d6a521a1907b3c18cb7a8592a655f660c Mon Sep 17 00:00:00 2001 From: "Mintz, Yuval" Date: Tue, 14 Mar 2017 15:26:04 +0200 Subject: qed: Enable iSCSI Out-of-Order Missing in the initial submission, qed fails to propagate qedi's request to enable OOO to firmware. Fixes: fc831825f99e ("qed: Add support for hardware offloaded iSCSI") Signed-off-by: Yuval Mintz Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qed/qed_iscsi.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c index 7e73b05eeab8..098766f7fe88 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_iscsi.c +++ b/drivers/net/ethernet/qlogic/qed/qed_iscsi.c @@ -190,6 +190,9 @@ qed_sp_iscsi_func_start(struct qed_hwfn *p_hwfn, p_init->num_sq_pages_in_ring = p_params->num_sq_pages_in_ring; p_init->num_r2tq_pages_in_ring = p_params->num_r2tq_pages_in_ring; p_init->num_uhq_pages_in_ring = p_params->num_uhq_pages_in_ring; + p_init->ooo_enable = p_params->ooo_enable; + p_init->ll2_rx_queue_id = p_hwfn->hw_info.resc_start[QED_LL2_QUEUE] + + p_params->ll2_ooo_queue_id; p_init->func_params.log_page_size = p_params->log_page_size; val = p_params->num_tasks; p_init->func_params.num_tasks = cpu_to_le16(val); -- cgit From 655d9ca9ac075da1ef2a45012ba48a39f6eb1f58 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Tue, 14 Mar 2017 22:27:11 +0100 Subject: drm: amd: remove broken include path The AMD ACP driver adds "-I../acp -I../acp/include" to the gcc command line, which makes no sense, since these are evaluated relative to the build directory. When we build with "make W=1", they instead cause a warning: cc1: error: ../acp/: No such file or directory [-Werror=missing-include-dirs] cc1: error: ../acp/include: No such file or directory [-Werror=missing-include-dirs] cc1: all warnings being treated as errors ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_drv.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_device.o' failed ../scripts/Makefile.build:289: recipe for target 'drivers/gpu/drm/amd/amdgpu/amdgpu_kms.o' failed This removes the subdir-ccflags variable that evidently did not serve any purpose here. Signed-off-by: Arnd Bergmann Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/acp/Makefile | 2 -- 1 file changed, 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/acp/Makefile b/drivers/gpu/drm/amd/acp/Makefile index 8363cb57915b..8a08e81ee90d 100644 --- a/drivers/gpu/drm/amd/acp/Makefile +++ b/drivers/gpu/drm/amd/acp/Makefile @@ -3,6 +3,4 @@ # of AMDSOC/AMDGPU drm driver. # It provides the HW control for ACP related functionalities. -subdir-ccflags-y += -I$(AMDACPPATH)/ -I$(AMDACPPATH)/include - AMD_ACP_FILES := $(AMDACPPATH)/acp_hw.o -- cgit From e4c204ced0ac25e02e58679f07096c5bac0b0d96 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Tue, 14 Mar 2017 16:18:34 +0100 Subject: cpufreq: intel_pstate: Avoid percentages in limits-related computations Currently, intel_pstate_update_perf_limits() first converts the policy minimum and maximum limits into percentages of the maximum turbo frequency (rounding up to an integer) and then converts these percentages to fractions (by using fixed-point arithmetic to divide them by 100). That introduces a rounding error unnecessarily, because the fractions can be obtained by carrying out fixed-point divisions directly on the input numbers. Rework the computations in intel_pstate_hwp_set() to use fractions instead of percentages (and drop redundant local variables from there) and modify intel_pstate_update_perf_limits() to compute the fractions directly and percentages out of them. While at it, introduce percent_ext_fp() for converting percentages to fractions (with extended number of fraction bits) and use it in the computations. Signed-off-by: Rafael J. Wysocki --- drivers/cpufreq/intel_pstate.c | 56 +++++++++++++++++++++--------------------- 1 file changed, 28 insertions(+), 28 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index ee12641ee010..08e134ffba68 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -84,6 +84,11 @@ static inline u64 div_ext_fp(u64 x, u64 y) return div64_u64(x << EXT_FRAC_BITS, y); } +static inline int32_t percent_ext_fp(int percent) +{ + return div_ext_fp(percent, 100); +} + /** * struct sample - Store performance sample * @core_avg_perf: Ratio of APERF/MPERF which is the actual average @@ -850,7 +855,6 @@ static void intel_pstate_hwp_set(struct cpufreq_policy *policy) u64 value, cap; for_each_cpu(cpu, policy->cpus) { - int max_perf_pct, min_perf_pct; struct cpudata *cpu_data = all_cpu_data[cpu]; s16 epp; @@ -864,16 +868,14 @@ static void intel_pstate_hwp_set(struct cpufreq_policy *policy) else hw_max = HWP_HIGHEST_PERF(cap); - max_perf_pct = perf_limits->max_perf_pct; - min_perf_pct = perf_limits->min_perf_pct; - min = hw_max * min_perf_pct / 100; + min = fp_ext_toint(hw_max * perf_limits->min_perf); rdmsrl_on_cpu(cpu, MSR_HWP_REQUEST, &value); value &= ~HWP_MIN_PERF(~0L); value |= HWP_MIN_PERF(min); - max = hw_max * max_perf_pct / 100; + max = fp_ext_toint(hw_max * perf_limits->max_perf); value &= ~HWP_MAX_PERF(~0L); value |= HWP_MAX_PERF(max); @@ -1223,7 +1225,7 @@ static ssize_t store_max_perf_pct(struct kobject *a, struct attribute *b, limits->max_perf_pct); limits->max_perf_pct = max(limits->min_perf_pct, limits->max_perf_pct); - limits->max_perf = div_ext_fp(limits->max_perf_pct, 100); + limits->max_perf = percent_ext_fp(limits->max_perf_pct); intel_pstate_update_policies(); @@ -1260,7 +1262,7 @@ static ssize_t store_min_perf_pct(struct kobject *a, struct attribute *b, limits->min_perf_pct); limits->min_perf_pct = min(limits->max_perf_pct, limits->min_perf_pct); - limits->min_perf = div_ext_fp(limits->min_perf_pct, 100); + limits->min_perf = percent_ext_fp(limits->min_perf_pct); intel_pstate_update_policies(); @@ -2078,36 +2080,34 @@ static void intel_pstate_clear_update_util_hook(unsigned int cpu) static void intel_pstate_update_perf_limits(struct cpufreq_policy *policy, struct perf_limits *limits) { + int32_t max_policy_perf, min_policy_perf; - limits->max_policy_pct = DIV_ROUND_UP(policy->max * 100, - policy->cpuinfo.max_freq); - limits->max_policy_pct = clamp_t(int, limits->max_policy_pct, 0, 100); + max_policy_perf = div_ext_fp(policy->max, policy->cpuinfo.max_freq); + max_policy_perf = clamp_t(int32_t, max_policy_perf, 0, int_ext_tofp(1)); if (policy->max == policy->min) { - limits->min_policy_pct = limits->max_policy_pct; + min_policy_perf = max_policy_perf; } else { - limits->min_policy_pct = DIV_ROUND_UP(policy->min * 100, - policy->cpuinfo.max_freq); - limits->min_policy_pct = clamp_t(int, limits->min_policy_pct, - 0, 100); + min_policy_perf = div_ext_fp(policy->min, + policy->cpuinfo.max_freq); + min_policy_perf = clamp_t(int32_t, min_policy_perf, + 0, max_policy_perf); } - /* Normalize user input to [min_policy_pct, max_policy_pct] */ - limits->min_perf_pct = max(limits->min_policy_pct, - limits->min_sysfs_pct); - limits->min_perf_pct = min(limits->max_policy_pct, - limits->min_perf_pct); - limits->max_perf_pct = min(limits->max_policy_pct, - limits->max_sysfs_pct); - limits->max_perf_pct = max(limits->min_policy_pct, - limits->max_perf_pct); + /* Normalize user input to [min_perf, max_perf] */ + limits->min_perf = max(min_policy_perf, + percent_ext_fp(limits->min_sysfs_pct)); + limits->min_perf = min(limits->min_perf, max_policy_perf); + limits->max_perf = min(max_policy_perf, + percent_ext_fp(limits->max_sysfs_pct)); + limits->max_perf = max(min_policy_perf, limits->max_perf); - /* Make sure min_perf_pct <= max_perf_pct */ - limits->min_perf_pct = min(limits->max_perf_pct, limits->min_perf_pct); + /* Make sure min_perf <= max_perf */ + limits->min_perf = min(limits->min_perf, limits->max_perf); - limits->min_perf = div_ext_fp(limits->min_perf_pct, 100); - limits->max_perf = div_ext_fp(limits->max_perf_pct, 100); limits->max_perf = round_up(limits->max_perf, EXT_FRAC_BITS); limits->min_perf = round_up(limits->min_perf, EXT_FRAC_BITS); + limits->max_perf_pct = fp_ext_toint(limits->max_perf * 100); + limits->min_perf_pct = fp_ext_toint(limits->min_perf * 100); pr_debug("cpu:%d max_perf_pct:%d min_perf_pct:%d\n", policy->cpu, limits->max_perf_pct, limits->min_perf_pct); -- cgit From 0f424de1fd9bc4ab24bd1fe5430ab5618e803e31 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 14 Mar 2017 14:42:03 -0400 Subject: drm/radeon/si: add dpm quirk for Oland MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit OLAND 0x1002:0x6604 0x1028:0x066F 0x00 seems to have problems with higher sclks. Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/radeon/si_dpm.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c index d12b8978142f..72e1588580a1 100644 --- a/drivers/gpu/drm/radeon/si_dpm.c +++ b/drivers/gpu/drm/radeon/si_dpm.c @@ -2984,6 +2984,12 @@ static void si_apply_state_adjust_rules(struct radeon_device *rdev, (rdev->pdev->device == 0x6667)) { max_sclk = 75000; } + } else if (rdev->family == CHIP_OLAND) { + if ((rdev->pdev->device == 0x6604) && + (rdev->pdev->subsystem_vendor == 0x1028) && + (rdev->pdev->subsystem_device == 0x066F)) { + max_sclk = 75000; + } } if (rps->vce_active) { -- cgit From 18a8de1bc37e97dff1c96ee6cf49adbd02a0f775 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Tue, 14 Mar 2017 19:24:19 -0400 Subject: drm/amdgpu/si: add dpm quirk for Oland MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit OLAND 0x1002:0x6604 0x1028:0x066F 0x00 seems to have problems with higher sclks. Acked-by: Christian König Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- drivers/gpu/drm/amd/amdgpu/si_dpm.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/si_dpm.c b/drivers/gpu/drm/amd/amdgpu/si_dpm.c index f55e45b52fbc..33b504bafb88 100644 --- a/drivers/gpu/drm/amd/amdgpu/si_dpm.c +++ b/drivers/gpu/drm/amd/amdgpu/si_dpm.c @@ -3464,6 +3464,12 @@ static void si_apply_state_adjust_rules(struct amdgpu_device *adev, (adev->pdev->device == 0x6667)) { max_sclk = 75000; } + } else if (adev->asic_type == CHIP_OLAND) { + if ((adev->pdev->device == 0x6604) && + (adev->pdev->subsystem_vendor == 0x1028) && + (adev->pdev->subsystem_device == 0x066F)) { + max_sclk = 75000; + } } if (rps->vce_active) { -- cgit From 801a6aa9a63c90724e8899982ad8c7f16be1e2cd Mon Sep 17 00:00:00 2001 From: Tom St Denis Date: Wed, 15 Mar 2017 05:34:25 -0400 Subject: drm/amd/amdgpu: Fix debugfs reg read/write address width MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The MMIO space is wider now so we mask the lower 22 bits instead of 18. Signed-off-by: Tom St Denis Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 4120b351a8e5..a3a105ec99e2 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -2590,7 +2590,7 @@ static ssize_t amdgpu_debugfs_regs_read(struct file *f, char __user *buf, use_bank = 0; } - *pos &= 0x3FFFF; + *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || @@ -2666,7 +2666,7 @@ static ssize_t amdgpu_debugfs_regs_write(struct file *f, const char __user *buf, use_bank = 0; } - *pos &= 0x3FFFF; + *pos &= (1UL << 22) - 1; if (use_bank) { if ((sh_bank != 0xFFFFFFFF && sh_bank >= adev->gfx.config.max_sh_per_se) || -- cgit From 9b4f603e7a9f4282aec451063ffbbb8bb410dcd9 Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Wed, 15 Mar 2017 00:12:16 +0100 Subject: cpufreq: Fix and clean up show_cpuinfo_cur_freq() There is a missing newline in show_cpuinfo_cur_freq(), so add it, but while at it clean that function up somewhat too. Signed-off-by: Rafael J. Wysocki Acked-by: Viresh Kumar Cc: All applicable --- drivers/cpufreq/cpufreq.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c index 38b9fdf854a4..b8ff617d449d 100644 --- a/drivers/cpufreq/cpufreq.c +++ b/drivers/cpufreq/cpufreq.c @@ -680,9 +680,11 @@ static ssize_t show_cpuinfo_cur_freq(struct cpufreq_policy *policy, char *buf) { unsigned int cur_freq = __cpufreq_get(policy); - if (!cur_freq) - return sprintf(buf, ""); - return sprintf(buf, "%u\n", cur_freq); + + if (cur_freq) + return sprintf(buf, "%u\n", cur_freq); + + return sprintf(buf, "\n"); } /** -- cgit From 15c9e10d9ad4d41d076148bbff1de7f659f68852 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Thu, 16 Mar 2017 16:40:33 -0700 Subject: drivers core: remove assert_held_device_hotplug() The last caller of assert_held_device_hotplug() is gone, so remove it again. Link: http://lkml.kernel.org/r/20170314125226.16779-3-heiko.carstens@de.ibm.com Signed-off-by: Heiko Carstens Acked-by: Dan Williams Cc: Michal Hocko Cc: "Rafael J. Wysocki" Cc: Vladimir Davydov Cc: Ben Hutchings Cc: Gerald Schaefer Cc: Martin Schwidefsky Cc: Sebastian Ott Cc: Greg Kroah-Hartman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/base/core.c | 5 ----- 1 file changed, 5 deletions(-) (limited to 'drivers') diff --git a/drivers/base/core.c b/drivers/base/core.c index 684bda4d14a1..6bb60fb6a30b 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -639,11 +639,6 @@ int lock_device_hotplug_sysfs(void) return restart_syscall(); } -void assert_held_device_hotplug(void) -{ - lockdep_assert_held(&device_hotplug_lock); -} - #ifdef CONFIG_BLOCK static inline int device_is_not_partition(struct device *dev) { -- cgit From 9c28ca4ff8bad7486182291a55b4f67a70af718d Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Wed, 8 Mar 2017 00:09:59 -0800 Subject: target: Drop pointless tfo->check_stop_free check All in-tree fabric drivers provide a tfo->check_stop_free(), so there is no need to do the extra check within existing transport_cmd_check_stop_to_fabric() code. Just to be sure, add a check in target_fabric_tf_ops_check() to notify any out-of-tree drivers that might be missing it. Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_configfs.c | 4 ++++ drivers/target/target_core_transport.c | 3 +-- 2 files changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c index 54b36c9835be..38b5025e4c7a 100644 --- a/drivers/target/target_core_configfs.c +++ b/drivers/target/target_core_configfs.c @@ -421,6 +421,10 @@ static int target_fabric_tf_ops_check(const struct target_core_fabric_ops *tfo) pr_err("Missing tfo->aborted_task()\n"); return -EINVAL; } + if (!tfo->check_stop_free) { + pr_err("Missing tfo->check_stop_free()\n"); + return -EINVAL; + } /* * We at least require tfo->fabric_make_wwn(), tfo->fabric_drop_wwn() * tfo->fabric_make_tpg() and tfo->fabric_drop_tpg() in diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 434d9d693989..b1a3cdb29468 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -636,8 +636,7 @@ static int transport_cmd_check_stop_to_fabric(struct se_cmd *cmd) * Fabric modules are expected to return '1' here if the se_cmd being * passed is released at this point, or zero if not being released. */ - return cmd->se_tfo->check_stop_free ? cmd->se_tfo->check_stop_free(cmd) - : 0; + return cmd->se_tfo->check_stop_free(cmd); } static void transport_lun_remove_cmd(struct se_cmd *cmd) -- cgit From 3abaa2bfdb1e6bb33d38a2e82cf3bb82ec0197bf Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Mar 2017 23:14:39 -0600 Subject: tcmu: allow hw_max_sectors greater than 128 tcmu hard codes the hw_max_sectors to 128 which is a litle small. Userspace uses the max_sectors to report the optimal IO size and some initiators perform better with larger IOs (open-iscsi seems to do better with 256 to 512 depending on the test). (Fix do not display hw max sectors twice - MNC) Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_user.c | 54 +++++++++++++++++++++++++-------------- 1 file changed, 35 insertions(+), 19 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index c3adefe95e50..24e8580f07b8 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -960,7 +960,8 @@ static int tcmu_configure_device(struct se_device *dev) if (dev->dev_attrib.hw_block_size == 0) dev->dev_attrib.hw_block_size = 512; /* Other attributes can be configured in userspace */ - dev->dev_attrib.hw_max_sectors = 128; + if (!dev->dev_attrib.hw_max_sectors) + dev->dev_attrib.hw_max_sectors = 128; dev->dev_attrib.hw_queue_depth = 128; ret = tcmu_netlink_event(TCMU_CMD_ADDED_DEVICE, udev->uio_info.name, @@ -1031,16 +1032,42 @@ static void tcmu_free_device(struct se_device *dev) } enum { - Opt_dev_config, Opt_dev_size, Opt_hw_block_size, Opt_err, + Opt_dev_config, Opt_dev_size, Opt_hw_block_size, Opt_hw_max_sectors, + Opt_err, }; static match_table_t tokens = { {Opt_dev_config, "dev_config=%s"}, {Opt_dev_size, "dev_size=%u"}, {Opt_hw_block_size, "hw_block_size=%u"}, + {Opt_hw_max_sectors, "hw_max_sectors=%u"}, {Opt_err, NULL} }; +static int tcmu_set_dev_attrib(substring_t *arg, u32 *dev_attrib) +{ + unsigned long tmp_ul; + char *arg_p; + int ret; + + arg_p = match_strdup(arg); + if (!arg_p) + return -ENOMEM; + + ret = kstrtoul(arg_p, 0, &tmp_ul); + kfree(arg_p); + if (ret < 0) { + pr_err("kstrtoul() failed for dev attrib\n"); + return ret; + } + if (!tmp_ul) { + pr_err("dev attrib must be nonzero\n"); + return -EINVAL; + } + *dev_attrib = tmp_ul; + return 0; +} + static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, const char *page, ssize_t count) { @@ -1048,7 +1075,6 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, char *orig, *ptr, *opts, *arg_p; substring_t args[MAX_OPT_ARGS]; int ret = 0, token; - unsigned long tmp_ul; opts = kstrdup(page, GFP_KERNEL); if (!opts) @@ -1082,22 +1108,12 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, pr_err("kstrtoul() failed for dev_size=\n"); break; case Opt_hw_block_size: - arg_p = match_strdup(&args[0]); - if (!arg_p) { - ret = -ENOMEM; - break; - } - ret = kstrtoul(arg_p, 0, &tmp_ul); - kfree(arg_p); - if (ret < 0) { - pr_err("kstrtoul() failed for hw_block_size=\n"); - break; - } - if (!tmp_ul) { - pr_err("hw_block_size must be nonzero\n"); - break; - } - dev->dev_attrib.hw_block_size = tmp_ul; + ret = tcmu_set_dev_attrib(&args[0], + &(dev->dev_attrib.hw_block_size)); + break; + case Opt_hw_max_sectors: + ret = tcmu_set_dev_attrib(&args[0], + &(dev->dev_attrib.hw_max_sectors)); break; default: break; -- cgit From 2579325ca0acc598fdf41ba12b2871d3467f28df Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Mar 2017 23:14:40 -0600 Subject: tcmu: return on first Opt parse failure We only were returing failure if the last opt to be parsed failed. This has a return failure when we first detect a failure. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_user.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 24e8580f07b8..4339ab2133b3 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -1118,6 +1118,9 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, default: break; } + + if (ret) + break; } kfree(orig); -- cgit From 530c6891b1220cba780b6c18f4691d85a3435080 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Mar 2017 23:13:24 -0600 Subject: target: allow ALUA setup for some passthrough backends This patch allows passthrough backends to use the core/base LIO ALUA setup and state checks, but still handle the execution of commands. This will allow the target_core_user module to execute STPG and RTPG in userspace, and not have to duplicate the ALUA state checks, path information (needed so we can check if command is executable on specific paths) and setup (rtslib sets/updates the configfs ALUA interface like it does for iblock or file). For STPG, the target_core_user userspace daemon, tcmu-runner will still execute the STPG, and to update the core/base LIO state it will use the existing configfs interface. For RTPG, tcmu-runner will loop over configfs and/or cache the state. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 9 +++++---- drivers/target/target_core_pscsi.c | 3 ++- drivers/target/target_core_tpg.c | 3 ++- 3 files changed, 9 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index f5e330099bfc..a41bbb8087cf 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -691,7 +691,7 @@ target_alua_state_check(struct se_cmd *cmd) if (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE) return 0; - if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA) return 0; /* @@ -1973,7 +1973,7 @@ ssize_t core_alua_store_tg_pt_gp_info( unsigned char buf[TG_PT_GROUP_NAME_BUF]; int move = 0; - if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH || + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA || (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) return -ENODEV; @@ -2230,7 +2230,7 @@ ssize_t core_alua_store_offline_bit( unsigned long tmp; int ret; - if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH || + if (dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA || (dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) return -ENODEV; @@ -2316,7 +2316,8 @@ ssize_t core_alua_store_secondary_write_metadata( int core_setup_alua(struct se_device *dev) { - if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) && + if (!(dev->transport->transport_flags & + TRANSPORT_FLAG_PASSTHROUGH_ALUA) && !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) { struct t10_alua_lu_gp_member *lu_gp_mem; diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 44d92f23a3f0..94cda7991e80 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -1080,7 +1080,8 @@ static void pscsi_req_done(struct request *req, int uptodate) static const struct target_backend_ops pscsi_ops = { .name = "pscsi", .owner = THIS_MODULE, - .transport_flags = TRANSPORT_FLAG_PASSTHROUGH, + .transport_flags = TRANSPORT_FLAG_PASSTHROUGH | + TRANSPORT_FLAG_PASSTHROUGH_ALUA, .attach_hba = pscsi_attach_hba, .detach_hba = pscsi_detach_hba, .pmode_enable_hba = pscsi_pmode_enable_hba, diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c index c0dbfa016575..6fb191914f45 100644 --- a/drivers/target/target_core_tpg.c +++ b/drivers/target/target_core_tpg.c @@ -602,7 +602,8 @@ int core_tpg_add_lun( if (ret) goto out_kill_ref; - if (!(dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH) && + if (!(dev->transport->transport_flags & + TRANSPORT_FLAG_PASSTHROUGH_ALUA) && !(dev->se_hba->hba_flags & HBA_FLAGS_INTERNAL_USE)) target_attach_tg_pt_gp(lun, dev->t10_alua.default_tg_pt_gp); -- cgit From 0a4145729871ef29afe8b0c57560a1f5bd736416 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Mar 2017 23:13:25 -0600 Subject: target: fail ALUA transitions for pscsi We do not setup the LU group for pscsi devices, so if you write a state to alua_access_state that will cause a transition you will get a NULL pointer dereference. This patch will fail attempts to try and transition the path for backend devices that set the TRANSPORT_FLAG_PASSTHROUGH_ALUA flag. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index a41bbb8087cf..5b5a1e250a65 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -1149,6 +1149,9 @@ int core_alua_do_port_transition( struct t10_alua_tg_pt_gp *tg_pt_gp; int primary, valid_states, rc = 0; + if (l_dev->transport->transport_flags & TRANSPORT_FLAG_PASSTHROUGH_ALUA) + return -ENODEV; + valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states; if (core_alua_check_transition(new_state, valid_states, &primary) != 0) return -EINVAL; -- cgit From 207ee84133c00a8a2a5bdec94df4a5b37d78881c Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Wed, 1 Mar 2017 23:13:26 -0600 Subject: target: Use system workqueue for ALUA transitions If tcmu-runner is processing a STPG and needs to change the kernel's ALUA state then we cannot use the same work queue for task management requests and ALUA transitions, because we could deadlock. The problem occurs when a STPG times out before tcmu-runner is able to call into target_tg_pt_gp_alua_access_state_store-> core_alua_do_port_transition -> core_alua_do_transition_tg_pt -> queue_work. In this case, the tmr is on the work queue waiting for the STPG to complete, but the STPG transition is now queued behind the waiting tmr. Note: This bug will also be fixed by this patch: http://www.spinics.net/lists/target-devel/msg14560.html which switches the tmr code to use the system workqueues. For both, I am not sure if we need a dedicated workqueue since it is not a performance path and I do not think we need WQ_MEM_RECLAIM to make forward progress to free up memory like the block layer does. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 5b5a1e250a65..58bf5e6350ac 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -1121,13 +1121,11 @@ static int core_alua_do_transition_tg_pt( unsigned long transition_tmo; transition_tmo = tg_pt_gp->tg_pt_gp_implicit_trans_secs * HZ; - queue_delayed_work(tg_pt_gp->tg_pt_gp_dev->tmr_wq, - &tg_pt_gp->tg_pt_gp_transition_work, - transition_tmo); + schedule_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work, + transition_tmo); } else { tg_pt_gp->tg_pt_gp_transition_complete = &wait; - queue_delayed_work(tg_pt_gp->tg_pt_gp_dev->tmr_wq, - &tg_pt_gp->tg_pt_gp_transition_work, 0); + schedule_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work, 0); wait_for_completion(&wait); tg_pt_gp->tg_pt_gp_transition_complete = NULL; } -- cgit From d7175373f2745ed4abe5b388d5aabd06304f801e Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 2 Mar 2017 04:59:48 -0600 Subject: target: fix ALUA transition timeout handling The implicit transition time tells initiators the min time to wait before timing out a transition. We currently schedule the transition to occur in tg_pt_gp_implicit_trans_secs seconds so there is no room for delays. If core_alua_do_transition_tg_pt_work->core_alua_update_tpg_primary_metadata needs to write out info to a remote file, then the initiator can easily time out the operation. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 23 ++++++++--------------- 1 file changed, 8 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 58bf5e6350ac..594807cd92cb 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -1013,7 +1013,7 @@ static void core_alua_queue_state_change_ua(struct t10_alua_tg_pt_gp *tg_pt_gp) static void core_alua_do_transition_tg_pt_work(struct work_struct *work) { struct t10_alua_tg_pt_gp *tg_pt_gp = container_of(work, - struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work.work); + struct t10_alua_tg_pt_gp, tg_pt_gp_transition_work); struct se_device *dev = tg_pt_gp->tg_pt_gp_dev; bool explicit = (tg_pt_gp->tg_pt_gp_alua_access_status == ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG); @@ -1076,13 +1076,12 @@ static int core_alua_do_transition_tg_pt( /* * Flush any pending transitions */ - if (!explicit && tg_pt_gp->tg_pt_gp_implicit_trans_secs && - atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == + if (!explicit && atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == ALUA_ACCESS_STATE_TRANSITION) { /* Just in case */ tg_pt_gp->tg_pt_gp_alua_pending_state = new_state; tg_pt_gp->tg_pt_gp_transition_complete = &wait; - flush_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work); + flush_work(&tg_pt_gp->tg_pt_gp_transition_work); wait_for_completion(&wait); tg_pt_gp->tg_pt_gp_transition_complete = NULL; return 0; @@ -1117,15 +1116,9 @@ static int core_alua_do_transition_tg_pt( atomic_inc(&tg_pt_gp->tg_pt_gp_ref_cnt); spin_unlock(&dev->t10_alua.tg_pt_gps_lock); - if (!explicit && tg_pt_gp->tg_pt_gp_implicit_trans_secs) { - unsigned long transition_tmo; - - transition_tmo = tg_pt_gp->tg_pt_gp_implicit_trans_secs * HZ; - schedule_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work, - transition_tmo); - } else { + schedule_work(&tg_pt_gp->tg_pt_gp_transition_work); + if (explicit) { tg_pt_gp->tg_pt_gp_transition_complete = &wait; - schedule_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work, 0); wait_for_completion(&wait); tg_pt_gp->tg_pt_gp_transition_complete = NULL; } @@ -1696,8 +1689,8 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev, mutex_init(&tg_pt_gp->tg_pt_gp_md_mutex); spin_lock_init(&tg_pt_gp->tg_pt_gp_lock); atomic_set(&tg_pt_gp->tg_pt_gp_ref_cnt, 0); - INIT_DELAYED_WORK(&tg_pt_gp->tg_pt_gp_transition_work, - core_alua_do_transition_tg_pt_work); + INIT_WORK(&tg_pt_gp->tg_pt_gp_transition_work, + core_alua_do_transition_tg_pt_work); tg_pt_gp->tg_pt_gp_dev = dev; atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED); @@ -1805,7 +1798,7 @@ void core_alua_free_tg_pt_gp( dev->t10_alua.alua_tg_pt_gps_counter--; spin_unlock(&dev->t10_alua.tg_pt_gps_lock); - flush_delayed_work(&tg_pt_gp->tg_pt_gp_transition_work); + flush_work(&tg_pt_gp->tg_pt_gp_transition_work); /* * Allow a struct t10_alua_tg_pt_gp_member * referenced by -- cgit From 1ca4d4fa3bfcbe8964f81e5818a9b90436466eb0 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 2 Mar 2017 04:59:49 -0600 Subject: target: allow userspace to set state to transitioning Userspace target_core_user handlers like tcmu-runner may want to set the ALUA state to transitioning while it does implicit transitions. This patch allows that state when set from configfs. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 37 ++++++++++++++++++++++--------------- 1 file changed, 22 insertions(+), 15 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 594807cd92cb..252d4e4b7b33 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -43,7 +43,7 @@ #include "target_core_ua.h" static sense_reason_t core_alua_check_transition(int state, int valid, - int *primary); + int *primary, int explicit); static int core_alua_set_tg_pt_secondary_state( struct se_lun *lun, int explicit, int offline); @@ -335,8 +335,8 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd) * the state is a primary or secondary target port asymmetric * access state. */ - rc = core_alua_check_transition(alua_access_state, - valid_states, &primary); + rc = core_alua_check_transition(alua_access_state, valid_states, + &primary, 1); if (rc) { /* * If the SET TARGET PORT GROUPS attempts to establish @@ -762,7 +762,7 @@ target_alua_state_check(struct se_cmd *cmd) * Check implicit and explicit ALUA state change request. */ static sense_reason_t -core_alua_check_transition(int state, int valid, int *primary) +core_alua_check_transition(int state, int valid, int *primary, int explicit) { /* * OPTIMIZED, NON-OPTIMIZED, STANDBY and UNAVAILABLE are @@ -804,11 +804,14 @@ core_alua_check_transition(int state, int valid, int *primary) *primary = 0; break; case ALUA_ACCESS_STATE_TRANSITION: - /* - * Transitioning is set internally, and - * cannot be selected manually. - */ - goto not_supported; + if (!(valid & ALUA_T_SUP) || explicit) + /* + * Transitioning is set internally and by tcmu daemon, + * and cannot be selected through a STPG. + */ + goto not_supported; + *primary = 0; + break; default: pr_err("Unknown ALUA access state: 0x%02x\n", state); return TCM_INVALID_PARAMETER_LIST; @@ -1070,7 +1073,7 @@ static int core_alua_do_transition_tg_pt( if (atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == new_state) return 0; - if (new_state == ALUA_ACCESS_STATE_TRANSITION) + if (explicit && new_state == ALUA_ACCESS_STATE_TRANSITION) return -EAGAIN; /* @@ -1091,10 +1094,6 @@ static int core_alua_do_transition_tg_pt( * Save the old primary ALUA access state, and set the current state * to ALUA_ACCESS_STATE_TRANSITION. */ - tg_pt_gp->tg_pt_gp_alua_previous_state = - atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); - tg_pt_gp->tg_pt_gp_alua_pending_state = new_state; - atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, ALUA_ACCESS_STATE_TRANSITION); tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ? @@ -1103,6 +1102,13 @@ static int core_alua_do_transition_tg_pt( core_alua_queue_state_change_ua(tg_pt_gp); + if (new_state == ALUA_ACCESS_STATE_TRANSITION) + return 0; + + tg_pt_gp->tg_pt_gp_alua_previous_state = + atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state); + tg_pt_gp->tg_pt_gp_alua_pending_state = new_state; + /* * Check for the optional ALUA primary state transition delay */ @@ -1144,7 +1150,8 @@ int core_alua_do_port_transition( return -ENODEV; valid_states = l_tg_pt_gp->tg_pt_gp_alua_supported_states; - if (core_alua_check_transition(new_state, valid_states, &primary) != 0) + if (core_alua_check_transition(new_state, valid_states, &primary, + explicit) != 0) return -EINVAL; local_lu_gp_mem = l_dev->dev_alua_lu_gp_mem; -- cgit From 760bf578edf8122f2503a3a6a3f4b0de3b6ce0bb Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 2 Mar 2017 04:59:50 -0600 Subject: target: fix race during implicit transition work flushes This fixes the following races: 1. core_alua_do_transition_tg_pt could have read tg_pt_gp_alua_access_state and gone into this if chunk: if (!explicit && atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == ALUA_ACCESS_STATE_TRANSITION) { and then core_alua_do_transition_tg_pt_work could update the state. core_alua_do_transition_tg_pt would then only set tg_pt_gp_alua_pending_state and the tg_pt_gp_alua_access_state would not get updated with the second calls state. 2. core_alua_do_transition_tg_pt could be setting tg_pt_gp_transition_complete while the tg_pt_gp_transition_work is already completing. core_alua_do_transition_tg_pt then waits on the completion that will never be called. To handle these issues, we just call flush_work which will return when core_alua_do_transition_tg_pt_work has completed so there is no need to do the complete/wait. And, if core_alua_do_transition_tg_pt_work was running, instead of trying to sneak in the state change, we just schedule up another core_alua_do_transition_tg_pt_work call. Note that this does not handle a possible race where there are multiple threads call core_alua_do_transition_tg_pt at the same time. I think we need a mutex in target_tg_pt_gp_alua_access_state_store. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_alua.c | 10 +--------- 1 file changed, 1 insertion(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c index 252d4e4b7b33..fd7c16a7ca6e 100644 --- a/drivers/target/target_core_alua.c +++ b/drivers/target/target_core_alua.c @@ -1079,16 +1079,8 @@ static int core_alua_do_transition_tg_pt( /* * Flush any pending transitions */ - if (!explicit && atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state) == - ALUA_ACCESS_STATE_TRANSITION) { - /* Just in case */ - tg_pt_gp->tg_pt_gp_alua_pending_state = new_state; - tg_pt_gp->tg_pt_gp_transition_complete = &wait; + if (!explicit) flush_work(&tg_pt_gp->tg_pt_gp_transition_work); - wait_for_completion(&wait); - tg_pt_gp->tg_pt_gp_transition_complete = NULL; - return 0; - } /* * Save the old primary ALUA access state, and set the current state -- cgit From 972c7f167974fa41ea8a2eed4b857cc59f59c42c Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 9 Mar 2017 02:42:08 -0600 Subject: tcmu: add helper to check if dev was configured This adds a helper to check if the dev was configured. It will be used in the next patch to prevent updates to some config settings after the device has been setup. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_user.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 4339ab2133b3..892b311e7874 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -998,6 +998,11 @@ static void tcmu_dev_call_rcu(struct rcu_head *p) kfree(udev); } +static bool tcmu_dev_configured(struct tcmu_dev *udev) +{ + return udev->uio_info.uio_dev ? true : false; +} + static void tcmu_free_device(struct se_device *dev) { struct tcmu_dev *udev = TCMU_DEV(dev); @@ -1019,8 +1024,7 @@ static void tcmu_free_device(struct se_device *dev) spin_unlock_irq(&udev->commands_lock); WARN_ON(!all_expired); - /* Device was configured */ - if (udev->uio_info.uio_dev) { + if (tcmu_dev_configured(udev)) { tcmu_netlink_event(TCMU_CMD_REMOVED_DEVICE, udev->uio_info.name, udev->uio_info.uio_dev->minor); -- cgit From af980e46a26ac8805685bb70c8572dbc47abb126 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 9 Mar 2017 02:42:09 -0600 Subject: tcmu: make cmd timeout configurable A single daemon could implement multiple types of devices using multuple types of real devices that may not support restarting from crashes and/or handling tcmu timeouts. This makes the cmd timeout configurable, so handlers that do not support it can turn if off for now. Signed-off-by: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_user.c | 41 +++++++++++++++++++++++++++++++++------ 1 file changed, 35 insertions(+), 6 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 892b311e7874..10cc15f0b1fa 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -112,6 +112,7 @@ struct tcmu_dev { spinlock_t commands_lock; struct timer_list timeout; + unsigned int cmd_time_out; char dev_config[TCMU_CONFIG_LEN]; }; @@ -172,7 +173,9 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) tcmu_cmd->se_cmd = se_cmd; tcmu_cmd->tcmu_dev = udev; - tcmu_cmd->deadline = jiffies + msecs_to_jiffies(TCMU_TIME_OUT); + if (udev->cmd_time_out) + tcmu_cmd->deadline = jiffies + + msecs_to_jiffies(udev->cmd_time_out); idr_preload(GFP_KERNEL); spin_lock_irq(&udev->commands_lock); @@ -451,7 +454,11 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) pr_debug("sleeping for ring space\n"); spin_unlock_irq(&udev->cmdr_lock); - ret = schedule_timeout(msecs_to_jiffies(TCMU_TIME_OUT)); + if (udev->cmd_time_out) + ret = schedule_timeout( + msecs_to_jiffies(udev->cmd_time_out)); + else + ret = schedule_timeout(msecs_to_jiffies(TCMU_TIME_OUT)); finish_wait(&udev->wait_cmdr, &__wait); if (!ret) { pr_warn("tcmu: command timed out\n"); @@ -526,8 +533,9 @@ tcmu_queue_cmd_ring(struct tcmu_cmd *tcmu_cmd) /* TODO: only if FLUSH and FUA? */ uio_event_notify(&udev->uio_info); - mod_timer(&udev->timeout, - round_jiffies_up(jiffies + msecs_to_jiffies(TCMU_TIME_OUT))); + if (udev->cmd_time_out) + mod_timer(&udev->timeout, round_jiffies_up(jiffies + + msecs_to_jiffies(udev->cmd_time_out))); return TCM_NO_SENSE; } @@ -742,6 +750,7 @@ static struct se_device *tcmu_alloc_device(struct se_hba *hba, const char *name) } udev->hba = hba; + udev->cmd_time_out = TCMU_TIME_OUT; init_waitqueue_head(&udev->wait_cmdr); spin_lock_init(&udev->cmdr_lock); @@ -1037,7 +1046,7 @@ static void tcmu_free_device(struct se_device *dev) enum { Opt_dev_config, Opt_dev_size, Opt_hw_block_size, Opt_hw_max_sectors, - Opt_err, + Opt_cmd_time_out, Opt_err, }; static match_table_t tokens = { @@ -1045,6 +1054,7 @@ static match_table_t tokens = { {Opt_dev_size, "dev_size=%u"}, {Opt_hw_block_size, "hw_block_size=%u"}, {Opt_hw_max_sectors, "hw_max_sectors=%u"}, + {Opt_cmd_time_out, "cmd_time_out=%u"}, {Opt_err, NULL} }; @@ -1111,6 +1121,23 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, if (ret < 0) pr_err("kstrtoul() failed for dev_size=\n"); break; + case Opt_cmd_time_out: + if (tcmu_dev_configured(udev)) { + pr_err("Can not update cmd_time_out after device has been configured.\n"); + ret = -EINVAL; + break; + } + arg_p = match_strdup(&args[0]); + if (!arg_p) { + ret = -ENOMEM; + break; + } + ret = kstrtouint(arg_p, 0, &udev->cmd_time_out); + kfree(arg_p); + if (ret < 0) + pr_err("kstrtouint() failed for cmd_time_out=\n"); + udev->cmd_time_out *= MSEC_PER_SEC; + break; case Opt_hw_block_size: ret = tcmu_set_dev_attrib(&args[0], &(dev->dev_attrib.hw_block_size)); @@ -1138,7 +1165,9 @@ static ssize_t tcmu_show_configfs_dev_params(struct se_device *dev, char *b) bl = sprintf(b + bl, "Config: %s ", udev->dev_config[0] ? udev->dev_config : "NULL"); - bl += sprintf(b + bl, "Size: %zu\n", udev->dev_size); + bl += sprintf(b + bl, "Size: %zu ", udev->dev_size); + bl += sprintf(b + bl, "Cmd Time Out: %lu\n", + udev->cmd_time_out / MSEC_PER_SEC); return bl; } -- cgit From 7d7a743543905a8297dce53b36e793e5307da5d7 Mon Sep 17 00:00:00 2001 From: Nicholas Bellinger Date: Sat, 18 Mar 2017 15:04:13 -0700 Subject: tcmu: Convert cmd_time_out into backend device attribute Instead of putting cmd_time_out under ../target/core/user_0/foo/control, which has historically been used by parameters needed for initial backend device configuration, go ahead and move cmd_time_out into a backend device attribute. In order to do this, tcmu_module_init() has been updated to create a local struct configfs_attribute **tcmu_attrs, that is based upon the existing passthrough_attrib_attrs along with the new cmd_time_out attribute. Once **tcm_attrs has been setup, go ahead and point it at tcmu_ops->tb_dev_attrib_attrs so it's picked up by target-core. Also following MNC's previous change, ->cmd_time_out is stored in milliseconds but exposed via configfs in seconds. Also, note this patch restricts the modification of ->cmd_time_out to before + after the TCMU device has been configured, but not while it has active fabric exports. Cc: Mike Christie Signed-off-by: Nicholas Bellinger --- drivers/target/target_core_user.c | 94 ++++++++++++++++++++++++++++----------- 1 file changed, 68 insertions(+), 26 deletions(-) (limited to 'drivers') diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 10cc15f0b1fa..c6874c38a10b 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include @@ -1046,7 +1047,7 @@ static void tcmu_free_device(struct se_device *dev) enum { Opt_dev_config, Opt_dev_size, Opt_hw_block_size, Opt_hw_max_sectors, - Opt_cmd_time_out, Opt_err, + Opt_err, }; static match_table_t tokens = { @@ -1054,7 +1055,6 @@ static match_table_t tokens = { {Opt_dev_size, "dev_size=%u"}, {Opt_hw_block_size, "hw_block_size=%u"}, {Opt_hw_max_sectors, "hw_max_sectors=%u"}, - {Opt_cmd_time_out, "cmd_time_out=%u"}, {Opt_err, NULL} }; @@ -1121,23 +1121,6 @@ static ssize_t tcmu_set_configfs_dev_params(struct se_device *dev, if (ret < 0) pr_err("kstrtoul() failed for dev_size=\n"); break; - case Opt_cmd_time_out: - if (tcmu_dev_configured(udev)) { - pr_err("Can not update cmd_time_out after device has been configured.\n"); - ret = -EINVAL; - break; - } - arg_p = match_strdup(&args[0]); - if (!arg_p) { - ret = -ENOMEM; - break; - } - ret = kstrtouint(arg_p, 0, &udev->cmd_time_out); - kfree(arg_p); - if (ret < 0) - pr_err("kstrtouint() failed for cmd_time_out=\n"); - udev->cmd_time_out *= MSEC_PER_SEC; - break; case Opt_hw_block_size: ret = tcmu_set_dev_attrib(&args[0], &(dev->dev_attrib.hw_block_size)); @@ -1165,9 +1148,7 @@ static ssize_t tcmu_show_configfs_dev_params(struct se_device *dev, char *b) bl = sprintf(b + bl, "Config: %s ", udev->dev_config[0] ? udev->dev_config : "NULL"); - bl += sprintf(b + bl, "Size: %zu ", udev->dev_size); - bl += sprintf(b + bl, "Cmd Time Out: %lu\n", - udev->cmd_time_out / MSEC_PER_SEC); + bl += sprintf(b + bl, "Size: %zu\n", udev->dev_size); return bl; } @@ -1186,7 +1167,48 @@ tcmu_parse_cdb(struct se_cmd *cmd) return passthrough_parse_cdb(cmd, tcmu_queue_cmd); } -static const struct target_backend_ops tcmu_ops = { +static ssize_t tcmu_cmd_time_out_show(struct config_item *item, char *page) +{ + struct se_dev_attrib *da = container_of(to_config_group(item), + struct se_dev_attrib, da_group); + struct tcmu_dev *udev = container_of(da->da_dev, + struct tcmu_dev, se_dev); + + return snprintf(page, PAGE_SIZE, "%lu\n", udev->cmd_time_out / MSEC_PER_SEC); +} + +static ssize_t tcmu_cmd_time_out_store(struct config_item *item, const char *page, + size_t count) +{ + struct se_dev_attrib *da = container_of(to_config_group(item), + struct se_dev_attrib, da_group); + struct tcmu_dev *udev = container_of(da->da_dev, + struct tcmu_dev, se_dev); + u32 val; + int ret; + + if (da->da_dev->export_count) { + pr_err("Unable to set tcmu cmd_time_out while exports exist\n"); + return -EINVAL; + } + + ret = kstrtou32(page, 0, &val); + if (ret < 0) + return ret; + + if (!val) { + pr_err("Illegal value for cmd_time_out\n"); + return -EINVAL; + } + + udev->cmd_time_out = val * MSEC_PER_SEC; + return count; +} +CONFIGFS_ATTR(tcmu_, cmd_time_out); + +static struct configfs_attribute **tcmu_attrs; + +static struct target_backend_ops tcmu_ops = { .name = "user", .owner = THIS_MODULE, .transport_flags = TRANSPORT_FLAG_PASSTHROUGH, @@ -1200,12 +1222,12 @@ static const struct target_backend_ops tcmu_ops = { .show_configfs_dev_params = tcmu_show_configfs_dev_params, .get_device_type = sbc_get_device_type, .get_blocks = tcmu_get_blocks, - .tb_dev_attrib_attrs = passthrough_attrib_attrs, + .tb_dev_attrib_attrs = NULL, }; static int __init tcmu_module_init(void) { - int ret; + int ret, i, len = 0; BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0); @@ -1227,12 +1249,31 @@ static int __init tcmu_module_init(void) goto out_unreg_device; } + for (i = 0; passthrough_attrib_attrs[i] != NULL; i++) { + len += sizeof(struct configfs_attribute *); + } + len += sizeof(struct configfs_attribute *) * 2; + + tcmu_attrs = kzalloc(len, GFP_KERNEL); + if (!tcmu_attrs) { + ret = -ENOMEM; + goto out_unreg_genl; + } + + for (i = 0; passthrough_attrib_attrs[i] != NULL; i++) { + tcmu_attrs[i] = passthrough_attrib_attrs[i]; + } + tcmu_attrs[i] = &tcmu_attr_cmd_time_out; + tcmu_ops.tb_dev_attrib_attrs = tcmu_attrs; + ret = transport_backend_register(&tcmu_ops); if (ret) - goto out_unreg_genl; + goto out_attrs; return 0; +out_attrs: + kfree(tcmu_attrs); out_unreg_genl: genl_unregister_family(&tcmu_genl_family); out_unreg_device: @@ -1246,6 +1287,7 @@ out_free_cache: static void __exit tcmu_module_exit(void) { target_backend_unregister(&tcmu_ops); + kfree(tcmu_attrs); genl_unregister_family(&tcmu_genl_family); root_device_unregister(tcmu_root_device); kmem_cache_destroy(tcmu_cmd_cache); -- cgit From c4a9b538ab2a109c5f9798bea1f8f4bf93aadfb9 Mon Sep 17 00:00:00 2001 From: Joe Carnuccio Date: Wed, 15 Mar 2017 09:48:43 -0700 Subject: qla2xxx: Allow vref count to timeout on vport delete. Cc: Signed-off-by: Joe Carnuccio Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_attr.c | 4 +--- drivers/scsi/qla2xxx/qla_def.h | 6 +++++- drivers/scsi/qla2xxx/qla_init.c | 1 + drivers/scsi/qla2xxx/qla_mid.c | 14 ++++++++------ drivers/scsi/qla2xxx/qla_os.c | 1 + 5 files changed, 16 insertions(+), 10 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index f610103994af..435ff7fd6384 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -2154,8 +2154,6 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) "Timer for the VP[%d] has stopped\n", vha->vp_idx); } - BUG_ON(atomic_read(&vha->vref_count)); - qla2x00_free_fcports(vha); mutex_lock(&ha->vport_lock); @@ -2166,7 +2164,7 @@ qla24xx_vport_delete(struct fc_vport *fc_vport) dma_free_coherent(&ha->pdev->dev, vha->gnl.size, vha->gnl.l, vha->gnl.ldma); - if (vha->qpair->vp_idx == vha->vp_idx) { + if (vha->qpair && vha->qpair->vp_idx == vha->vp_idx) { if (qla2xxx_delete_qpair(vha, vha->qpair) != QLA_SUCCESS) ql_log(ql_log_warn, vha, 0x7087, "Queue Pair delete failed.\n"); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 625d438e3cce..8662ef4192db 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4076,6 +4076,7 @@ typedef struct scsi_qla_host { /* Count of active session/fcport */ int fcport_count; wait_queue_head_t fcport_waitQ; + wait_queue_head_t vref_waitq; } scsi_qla_host_t; struct qla27xx_image_status { @@ -4131,14 +4132,17 @@ struct qla2_sgx { mb(); \ if (__vha->flags.delete_progress) { \ atomic_dec(&__vha->vref_count); \ + wake_up(&__vha->vref_waitq); \ __bail = 1; \ } else { \ __bail = 0; \ } \ } while (0) -#define QLA_VHA_MARK_NOT_BUSY(__vha) \ +#define QLA_VHA_MARK_NOT_BUSY(__vha) do { \ atomic_dec(&__vha->vref_count); \ + wake_up(&__vha->vref_waitq); \ +} while (0) \ #define QLA_QPAIR_MARK_BUSY(__qpair, __bail) do { \ atomic_inc(&__qpair->ref_count); \ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 32fb9007f137..9f3740c68cc8 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -5148,6 +5148,7 @@ qla2x00_update_fcports(scsi_qla_host_t *base_vha) } } atomic_dec(&vha->vref_count); + wake_up(&vha->vref_waitq); } spin_unlock_irqrestore(&ha->vport_slock, flags); } diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index c6d6f0d912ff..09a490c98763 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -74,13 +74,14 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha) * ensures no active vp_list traversal while the vport is removed * from the queue) */ - spin_lock_irqsave(&ha->vport_slock, flags); - while (atomic_read(&vha->vref_count)) { - spin_unlock_irqrestore(&ha->vport_slock, flags); - - msleep(500); + wait_event_timeout(vha->vref_waitq, atomic_read(&vha->vref_count), + 10*HZ); - spin_lock_irqsave(&ha->vport_slock, flags); + spin_lock_irqsave(&ha->vport_slock, flags); + if (atomic_read(&vha->vref_count)) { + ql_dbg(ql_dbg_vport, vha, 0xfffa, + "vha->vref_count=%u timeout\n", vha->vref_count.counter); + vha->vref_count = (atomic_t)ATOMIC_INIT(0); } list_del(&vha->list); qlt_update_vp_map(vha, RESET_VP_IDX); @@ -269,6 +270,7 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb) spin_lock_irqsave(&ha->vport_slock, flags); atomic_dec(&vha->vref_count); + wake_up(&vha->vref_waitq); } i++; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 1fed235a1b4a..54d4e802bde0 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4268,6 +4268,7 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, spin_lock_init(&vha->work_lock); spin_lock_init(&vha->cmd_list_lock); init_waitqueue_head(&vha->fcport_waitQ); + init_waitqueue_head(&vha->vref_waitq); vha->gnl.size = sizeof(struct get_name_list_extended) * (ha->max_loop_id + 1); -- cgit From ae940f2c472a62904dc18234de5cf3ed28f195ee Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:44 -0700 Subject: qla2xxx: Fix memory leak for abts processing Cc: Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 45f5077684f0..ecf97c5993e8 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -6642,6 +6642,8 @@ qlt_handle_abts_recv_work(struct work_struct *work) spin_lock_irqsave(&ha->hardware_lock, flags); qlt_response_pkt_all_vps(vha, (response_t *)&op->atio); spin_unlock_irqrestore(&ha->hardware_lock, flags); + + kfree(op); } void -- cgit From 8b666809e10cda9814af3e8be339d35b83909056 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:45 -0700 Subject: qla2xxx: Fix request queue corruption. When FW notify driver or driver detects low FW resource, driver tries to send out Busy SCSI Status to tell Initiator side to back off. During the send process, the lock was not held. Cc: Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index ecf97c5993e8..a463bcc57902 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -5079,16 +5079,22 @@ qlt_send_busy(struct scsi_qla_host *vha, static int qlt_chk_qfull_thresh_hold(struct scsi_qla_host *vha, - struct atio_from_isp *atio) + struct atio_from_isp *atio, bool ha_locked) { struct qla_hw_data *ha = vha->hw; uint16_t status; + unsigned long flags; if (ha->tgt.num_pend_cmds < Q_FULL_THRESH_HOLD(ha)) return 0; + if (!ha_locked) + spin_lock_irqsave(&ha->hardware_lock, flags); status = temp_sam_status; qlt_send_busy(vha, atio, status); + if (!ha_locked) + spin_unlock_irqrestore(&ha->hardware_lock, flags); + return 1; } @@ -5133,7 +5139,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, if (likely(atio->u.isp24.fcp_cmnd.task_mgmt_flags == 0)) { - rc = qlt_chk_qfull_thresh_hold(vha, atio); + rc = qlt_chk_qfull_thresh_hold(vha, atio, ha_locked); if (rc != 0) { tgt->atio_irq_cmd_count--; return; @@ -5256,7 +5262,7 @@ static void qlt_response_pkt(struct scsi_qla_host *vha, response_t *pkt) break; } - rc = qlt_chk_qfull_thresh_hold(vha, atio); + rc = qlt_chk_qfull_thresh_hold(vha, atio, true); if (rc != 0) { tgt->irq_cmd_count--; return; -- cgit From 8f6fc8d4e7ae2347d6261d11a7eb2b247d2954d8 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:46 -0700 Subject: qla2xxx: Fix inadequate lock protection for ABTS. Normally, ABTS is sent to Target Core as Task MGMT command. In the case of error, qla2xxx needs to send response, hardware_lock is required to prevent request queue corruption. Cc: Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index a463bcc57902..a78c3e9bcb57 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -130,6 +130,9 @@ static void qlt_send_term_imm_notif(struct scsi_qla_host *vha, static struct fc_port *qlt_create_sess(struct scsi_qla_host *vha, fc_port_t *fcport, bool local); void qlt_unreg_sess(struct fc_port *sess); +static void qlt_24xx_handle_abts(struct scsi_qla_host *, + struct abts_recv_from_24xx *); + /* * Global Variables */ @@ -389,6 +392,8 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, (struct abts_recv_from_24xx *)atio; struct scsi_qla_host *host = qlt_find_host_by_vp_idx(vha, entry->vp_index); + unsigned long flags; + if (unlikely(!host)) { ql_dbg(ql_dbg_tgt, vha, 0xffff, "qla_target(%d): Response pkt (ABTS_RECV_24XX) " @@ -396,9 +401,12 @@ static bool qlt_24xx_atio_pkt_all_vps(struct scsi_qla_host *vha, vha->vp_idx, entry->vp_index); break; } - qlt_response_pkt(host, (response_t *)atio); + if (!ha_locked) + spin_lock_irqsave(&host->hw->hardware_lock, flags); + qlt_24xx_handle_abts(host, (struct abts_recv_from_24xx *)atio); + if (!ha_locked) + spin_unlock_irqrestore(&host->hw->hardware_lock, flags); break; - } /* case PUREX_IOCB_TYPE: ql2xmvasynctoatio */ -- cgit From f159b3c7cd45c550d0f73806451a10b6b6bc08ae Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:47 -0700 Subject: qla2xxx: Fix sess_lock & hardware_lock lock order problem. The main lock that needs to be held for CMD or TMR submission to upper layer is the sess_lock. The sess_lock is used to serialize cmd submission and session deletion. The addition of hardware_lock being held is not necessary. This patch removes hardware_lock dependency from CMD/TMR submission. Use hardware_lock only for error response in this case. Path1 CPU0 CPU1 ---- ---- lock(&(&ha->tgt.sess_lock)->rlock); lock(&(&ha->hardware_lock)->rlock); lock(&(&ha->tgt.sess_lock)->rlock); lock(&(&ha->hardware_lock)->rlock); Path2/deadlock *** DEADLOCK *** Call Trace: dump_stack+0x85/0xc2 print_circular_bug+0x1e3/0x250 __lock_acquire+0x1425/0x1620 lock_acquire+0xbf/0x210 _raw_spin_lock_irqsave+0x53/0x70 qlt_sess_work_fn+0x21d/0x480 [qla2xxx] process_one_work+0x1f4/0x6e0 Cc: Cc: Bart Van Assche Reported-by: Bart Van Assche Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 41 +++++++++++++++++---------------------- 1 file changed, 18 insertions(+), 23 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index a78c3e9bcb57..989f931af156 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -5727,30 +5727,23 @@ static void qlt_abort_work(struct qla_tgt *tgt, } } - spin_lock_irqsave(&ha->hardware_lock, flags); - - if (tgt->tgt_stop) - goto out_term; - rc = __qlt_24xx_handle_abts(vha, &prm->abts, sess); + ha->tgt.tgt_ops->put_sess(sess); + spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); + if (rc != 0) goto out_term; - spin_unlock_irqrestore(&ha->hardware_lock, flags); - if (sess) - ha->tgt.tgt_ops->put_sess(sess); - spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); return; out_term2: - spin_lock_irqsave(&ha->hardware_lock, flags); + if (sess) + ha->tgt.tgt_ops->put_sess(sess); + spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); out_term: + spin_lock_irqsave(&ha->hardware_lock, flags); qlt_24xx_send_abts_resp(vha, &prm->abts, FCP_TMF_REJECTED, false); spin_unlock_irqrestore(&ha->hardware_lock, flags); - - if (sess) - ha->tgt.tgt_ops->put_sess(sess); - spin_unlock_irqrestore(&ha->tgt.sess_lock, flags2); } static void qlt_tmr_work(struct qla_tgt *tgt, @@ -5770,7 +5763,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt, spin_lock_irqsave(&ha->tgt.sess_lock, flags); if (tgt->tgt_stop) - goto out_term; + goto out_term2; s_id = prm->tm_iocb2.u.isp24.fcp_hdr.s_id; sess = ha->tgt.tgt_ops->find_sess_by_s_id(vha, s_id); @@ -5782,11 +5775,11 @@ static void qlt_tmr_work(struct qla_tgt *tgt, spin_lock_irqsave(&ha->tgt.sess_lock, flags); if (!sess) - goto out_term; + goto out_term2; } else { if (sess->deleted) { sess = NULL; - goto out_term; + goto out_term2; } if (!kref_get_unless_zero(&sess->sess_kref)) { @@ -5794,7 +5787,7 @@ static void qlt_tmr_work(struct qla_tgt *tgt, "%s: kref_get fail %8phC\n", __func__, sess->port_name); sess = NULL; - goto out_term; + goto out_term2; } } @@ -5804,17 +5797,19 @@ static void qlt_tmr_work(struct qla_tgt *tgt, unpacked_lun = scsilun_to_int((struct scsi_lun *)&lun); rc = qlt_issue_task_mgmt(sess, unpacked_lun, fn, iocb, 0); - if (rc != 0) - goto out_term; - ha->tgt.tgt_ops->put_sess(sess); spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); + + if (rc != 0) + goto out_term; return; +out_term2: + if (sess) + ha->tgt.tgt_ops->put_sess(sess); + spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); out_term: qlt_send_term_exchange(vha, NULL, &prm->tm_iocb2, 1, 0); - ha->tgt.tgt_ops->put_sess(sess); - spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); } static void qlt_sess_work_fn(struct work_struct *work) -- cgit From 5b33469a055c77001fd2c62b0f985c991b0e5b65 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:48 -0700 Subject: qla2xxx: Allow relogin to proceed if remote login did not finish If the remote port have started the login process, then the PLOGI and PRLI should be back to back. Driver will allow the remote port to complete the process. For the case where the remote port decide to back off from sending PRLI, this local port sets an expiration timer for the PRLI. Once the expiration time passes, the relogin retry logic is allowed to go through and perform login with the remote port. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_def.h | 2 ++ drivers/scsi/qla2xxx/qla_init.c | 12 ++++++++++-- drivers/scsi/qla2xxx/qla_isr.c | 25 +++++++++++++++++++------ drivers/scsi/qla2xxx/qla_target.c | 1 + 4 files changed, 32 insertions(+), 8 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 8662ef4192db..56cd45fc600a 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2300,6 +2300,8 @@ typedef struct fc_port { struct ct_sns_desc ct_desc; enum discovery_state disc_state; enum login_state fw_login_state; + unsigned long plogi_nack_done_deadline; + u32 login_gen, last_login_gen; u32 rscn_gen, last_rscn_gen; u32 chip_reset; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 9f3740c68cc8..a7865a5d556d 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -876,10 +876,14 @@ int qla24xx_fcport_handle_login(struct scsi_qla_host *vha, fc_port_t *fcport) fcport->login_retry--; if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) || - (fcport->fw_login_state == DSC_LS_PLOGI_COMP) || (fcport->fw_login_state == DSC_LS_PRLI_PEND)) return 0; + if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) { + if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) + return 0; + } + /* for pure Target Mode. Login will not be initiated */ if (vha->host->active_mode == MODE_TARGET) return 0; @@ -1041,10 +1045,14 @@ void qla24xx_handle_relogin_event(scsi_qla_host_t *vha, fcport->flags); if ((fcport->fw_login_state == DSC_LS_PLOGI_PEND) || - (fcport->fw_login_state == DSC_LS_PLOGI_COMP) || (fcport->fw_login_state == DSC_LS_PRLI_PEND)) return; + if (fcport->fw_login_state == DSC_LS_PLOGI_COMP) { + if (time_before_eq(jiffies, fcport->plogi_nack_done_deadline)) + return; + } + if (fcport->flags & FCF_ASYNC_SENT) { fcport->login_retry++; set_bit(RELOGIN_NEEDED, &vha->dpc_flags); diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 3c66ea29de27..b2c6da752edd 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1620,9 +1620,9 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, QLA_LOGIO_LOGIN_RETRIED : 0; if (logio->entry_status) { ql_log(ql_log_warn, fcport->vha, 0x5034, - "Async-%s error entry - hdl=%x" + "Async-%s error entry - %8phC hdl=%x" "portid=%02x%02x%02x entry-status=%x.\n", - type, sp->handle, fcport->d_id.b.domain, + type, fcport->port_name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, logio->entry_status); ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d, @@ -1633,8 +1633,9 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) { ql_dbg(ql_dbg_async, fcport->vha, 0x5036, - "Async-%s complete - hdl=%x portid=%02x%02x%02x " - "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain, + "Async-%s complete - %8phC hdl=%x portid=%02x%02x%02x " + "iop0=%x.\n", type, fcport->port_name, sp->handle, + fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, le32_to_cpu(logio->io_parameter[0])); @@ -1674,6 +1675,17 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, case LSC_SCODE_NPORT_USED: data[0] = MBS_LOOP_ID_USED; break; + case LSC_SCODE_CMD_FAILED: + if (iop[1] == 0x0606) { + /* + * PLOGI/PRLI Completed. We must have Recv PLOGI/PRLI, + * Target side acked. + */ + data[0] = MBS_COMMAND_COMPLETE; + goto logio_done; + } + data[0] = MBS_COMMAND_ERROR; + break; case LSC_SCODE_NOXCB: vha->hw->exch_starvation++; if (vha->hw->exch_starvation > 5) { @@ -1695,8 +1707,9 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req, } ql_dbg(ql_dbg_async, fcport->vha, 0x5037, - "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x " - "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain, + "Async-%s failed - %8phC hdl=%x portid=%02x%02x%02x comp=%x " + "iop0=%x iop1=%x.\n", type, fcport->port_name, + sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa, le16_to_cpu(logio->comp_status), le32_to_cpu(logio->io_parameter[0]), diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 989f931af156..925d9b858b24 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -562,6 +562,7 @@ void qla2x00_async_nack_sp_done(void *s, int res) sp->fcport->login_gen++; sp->fcport->fw_login_state = DSC_LS_PLOGI_COMP; sp->fcport->logout_on_delete = 1; + sp->fcport->plogi_nack_done_deadline = jiffies + HZ; break; case SRB_NACK_PRLI: -- cgit From be25152c0d9e236076323abbe9def9714234b761 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:49 -0700 Subject: qla2xxx: Improve T10-DIF/PI handling in driver. Add routines to support T10 DIF tag. Signed-off-by: Quinn Tran Signed-off-by: Anil Gurumurthy Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_dbg.h | 1 + drivers/scsi/qla2xxx/qla_def.h | 10 + drivers/scsi/qla2xxx/qla_gbl.h | 6 +- drivers/scsi/qla2xxx/qla_iocb.c | 13 +- drivers/scsi/qla2xxx/qla_target.c | 540 ++++++++++++++++++++++--------------- drivers/scsi/qla2xxx/qla_target.h | 38 ++- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 49 ++-- 7 files changed, 406 insertions(+), 251 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h index e1fc4e66966a..c6bffe929fe7 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.h +++ b/drivers/scsi/qla2xxx/qla_dbg.h @@ -348,6 +348,7 @@ ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...); #define ql_dbg_tgt 0x00004000 /* Target mode */ #define ql_dbg_tgt_mgt 0x00002000 /* Target mode management */ #define ql_dbg_tgt_tmr 0x00001000 /* Target mode task management */ +#define ql_dbg_tgt_dif 0x00000800 /* Target mode dif */ extern int qla27xx_dump_mpi_ram(struct qla_hw_data *, uint32_t, uint32_t *, uint32_t, void **); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 56cd45fc600a..9d1d3dcf1c87 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3127,6 +3127,16 @@ struct bidi_statistics { unsigned long long transfer_bytes; }; +struct qla_tc_param { + struct scsi_qla_host *vha; + uint32_t blk_sz; + uint32_t bufflen; + struct scatterlist *sg; + struct scatterlist *prot_sg; + struct crc_context *ctx; + uint8_t *ctx_dsd_alloced; +}; + /* Multi queue support */ #define MBC_INITIALIZE_MULTIQ 0x1f #define QLA_QUE_PAGE 0X1000 diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index b3d6441d1d90..ca6f122e5865 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -256,11 +256,11 @@ extern unsigned long qla2x00_get_async_timeout(struct scsi_qla_host *); extern void *qla2x00_alloc_iocbs(scsi_qla_host_t *, srb_t *); extern int qla2x00_issue_marker(scsi_qla_host_t *, int); extern int qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *, srb_t *, - uint32_t *, uint16_t, struct qla_tgt_cmd *); + uint32_t *, uint16_t, struct qla_tc_param *); extern int qla24xx_walk_and_build_sglist(struct qla_hw_data *, srb_t *, - uint32_t *, uint16_t, struct qla_tgt_cmd *); + uint32_t *, uint16_t, struct qla_tc_param *); extern int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *, srb_t *, - uint32_t *, uint16_t, struct qla_tgt_cmd *); + uint32_t *, uint16_t, struct qla_tc_param *); extern int qla24xx_get_one_block_sg(uint32_t, struct qla2_sgx *, uint32_t *); extern int qla24xx_configure_prot_mode(srb_t *, uint16_t *); extern int qla24xx_build_scsi_crc_2_iocbs(srb_t *, diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 535079280288..ea027f6a7fd4 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -889,7 +889,7 @@ qla24xx_get_one_block_sg(uint32_t blk_sz, struct qla2_sgx *sgx, int qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, - uint32_t *dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) + uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) { void *next_dsd; uint8_t avail_dsds = 0; @@ -898,7 +898,6 @@ qla24xx_walk_and_build_sglist_no_difb(struct qla_hw_data *ha, srb_t *sp, struct scatterlist *sg_prot; uint32_t *cur_dsd = dsd; uint16_t used_dsds = tot_dsds; - uint32_t prot_int; /* protection interval */ uint32_t partial; struct qla2_sgx sgx; @@ -966,7 +965,7 @@ alloc_and_fill: } else { list_add_tail(&dsd_ptr->list, &(tc->ctx->dsd_list)); - tc->ctx_dsd_alloced = 1; + *tc->ctx_dsd_alloced = 1; } @@ -1005,7 +1004,7 @@ alloc_and_fill: int qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, - uint16_t tot_dsds, struct qla_tgt_cmd *tc) + uint16_t tot_dsds, struct qla_tc_param *tc) { void *next_dsd; uint8_t avail_dsds = 0; @@ -1066,7 +1065,7 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, } else { list_add_tail(&dsd_ptr->list, &(tc->ctx->dsd_list)); - tc->ctx_dsd_alloced = 1; + *tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ @@ -1092,7 +1091,7 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd, int qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, - uint32_t *dsd, uint16_t tot_dsds, struct qla_tgt_cmd *tc) + uint32_t *dsd, uint16_t tot_dsds, struct qla_tc_param *tc) { void *next_dsd; uint8_t avail_dsds = 0; @@ -1158,7 +1157,7 @@ qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp, } else { list_add_tail(&dsd_ptr->list, &(tc->ctx->dsd_list)); - tc->ctx_dsd_alloced = 1; + *tc->ctx_dsd_alloced = 1; } /* add new list to cmd iocb or last list */ diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 925d9b858b24..532004981dbd 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -143,6 +143,20 @@ static struct workqueue_struct *qla_tgt_wq; static DEFINE_MUTEX(qla_tgt_mutex); static LIST_HEAD(qla_tgt_glist); +static const char *prot_op_str(u32 prot_op) +{ + switch (prot_op) { + case TARGET_PROT_NORMAL: return "NORMAL"; + case TARGET_PROT_DIN_INSERT: return "DIN_INSERT"; + case TARGET_PROT_DOUT_INSERT: return "DOUT_INSERT"; + case TARGET_PROT_DIN_STRIP: return "DIN_STRIP"; + case TARGET_PROT_DOUT_STRIP: return "DOUT_STRIP"; + case TARGET_PROT_DIN_PASS: return "DIN_PASS"; + case TARGET_PROT_DOUT_PASS: return "DOUT_PASS"; + default: return "UNKNOWN"; + } +} + /* This API intentionally takes dest as a parameter, rather than returning * int value to avoid caller forgetting to issue wmb() after the store */ void qlt_do_generation_tick(struct scsi_qla_host *vha, int *dest) @@ -2022,6 +2036,70 @@ void qlt_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd) } EXPORT_SYMBOL(qlt_free_mcmd); +/* + * ha->hardware_lock supposed to be held on entry. Might drop it, then + * reacquire + */ +void qlt_send_resp_ctio(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd, + uint8_t scsi_status, uint8_t sense_key, uint8_t asc, uint8_t ascq) +{ + struct atio_from_isp *atio = &cmd->atio; + struct ctio7_to_24xx *ctio; + uint16_t temp; + + ql_dbg(ql_dbg_tgt_dif, vha, 0x3066, + "Sending response CTIO7 (vha=%p, atio=%p, scsi_status=%02x, " + "sense_key=%02x, asc=%02x, ascq=%02x", + vha, atio, scsi_status, sense_key, asc, ascq); + + ctio = (struct ctio7_to_24xx *)qla2x00_alloc_iocbs(vha, NULL); + if (!ctio) { + ql_dbg(ql_dbg_async, vha, 0x3067, + "qla2x00t(%ld): %s failed: unable to allocate request packet", + vha->host_no, __func__); + goto out; + } + + ctio->entry_type = CTIO_TYPE7; + ctio->entry_count = 1; + ctio->handle = QLA_TGT_SKIP_HANDLE; + ctio->nport_handle = cmd->sess->loop_id; + ctio->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); + ctio->vp_index = vha->vp_idx; + ctio->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; + ctio->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; + ctio->initiator_id[2] = atio->u.isp24.fcp_hdr.s_id[0]; + ctio->exchange_addr = atio->u.isp24.exchange_addr; + ctio->u.status1.flags = (atio->u.isp24.attr << 9) | + cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_1 | CTIO7_FLAGS_SEND_STATUS); + temp = be16_to_cpu(atio->u.isp24.fcp_hdr.ox_id); + ctio->u.status1.ox_id = cpu_to_le16(temp); + ctio->u.status1.scsi_status = + cpu_to_le16(SS_RESPONSE_INFO_LEN_VALID | scsi_status); + ctio->u.status1.response_len = cpu_to_le16(18); + ctio->u.status1.residual = cpu_to_le32(get_datalen_for_atio(atio)); + + if (ctio->u.status1.residual != 0) + ctio->u.status1.scsi_status |= + cpu_to_le16(SS_RESIDUAL_UNDER); + + /* Response code and sense key */ + put_unaligned_le32(((0x70 << 24) | (sense_key << 8)), + (&ctio->u.status1.sense_data)[0]); + /* Additional sense length */ + put_unaligned_le32(0x0a, (&ctio->u.status1.sense_data)[1]); + /* ASC and ASCQ */ + put_unaligned_le32(((asc << 24) | (ascq << 16)), + (&ctio->u.status1.sense_data)[3]); + + /* Memory Barrier */ + wmb(); + + qla2x00_start_iocbs(vha, vha->req); +out: + return; +} + /* callback from target fabric module code */ void qlt_xmit_tm_rsp(struct qla_tgt_mgmt_cmd *mcmd) { @@ -2270,7 +2348,7 @@ static int qlt_24xx_build_ctio_pkt(struct qla_tgt_prm *prm, */ return -EAGAIN; } else - ha->tgt.cmds[h-1] = prm->cmd; + ha->tgt.cmds[h - 1] = prm->cmd; pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; pkt->nport_handle = prm->cmd->loop_id; @@ -2400,6 +2478,50 @@ static inline int qlt_has_data(struct qla_tgt_cmd *cmd) return cmd->bufflen > 0; } +static void qlt_print_dif_err(struct qla_tgt_prm *prm) +{ + struct qla_tgt_cmd *cmd; + struct scsi_qla_host *vha; + + /* asc 0x10=dif error */ + if (prm->sense_buffer && (prm->sense_buffer[12] == 0x10)) { + cmd = prm->cmd; + vha = cmd->vha; + /* ASCQ */ + switch (prm->sense_buffer[13]) { + case 1: + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "BE detected Guard TAG ERR: lba[0x%llx|%lld] len[0x%x] " + "se_cmd=%p tag[%x]", + cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, + cmd->atio.u.isp24.exchange_addr); + break; + case 2: + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "BE detected APP TAG ERR: lba[0x%llx|%lld] len[0x%x] " + "se_cmd=%p tag[%x]", + cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, + cmd->atio.u.isp24.exchange_addr); + break; + case 3: + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "BE detected REF TAG ERR: lba[0x%llx|%lld] len[0x%x] " + "se_cmd=%p tag[%x]", + cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, + cmd->atio.u.isp24.exchange_addr); + break; + default: + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "BE detected Dif ERR: lba[%llx|%lld] len[%x] " + "se_cmd=%p tag[%x]", + cmd->lba, cmd->lba, cmd->num_blks, &cmd->se_cmd, + cmd->atio.u.isp24.exchange_addr); + break; + } + ql_dump_buffer(ql_dbg_tgt_dif, vha, 0xffff, cmd->cdb, 16); + } +} + /* * Called without ha->hardware_lock held */ @@ -2521,18 +2643,9 @@ skip_explict_conf: for (i = 0; i < prm->sense_buffer_len/4; i++) ((uint32_t *)ctio->u.status1.sense_data)[i] = cpu_to_be32(((uint32_t *)prm->sense_buffer)[i]); -#if 0 - if (unlikely((prm->sense_buffer_len % 4) != 0)) { - static int q; - if (q < 10) { - ql_dbg(ql_dbg_tgt, vha, 0xe04f, - "qla_target(%d): %d bytes of sense " - "lost", prm->tgt->ha->vp_idx, - prm->sense_buffer_len % 4); - q++; - } - } -#endif + + qlt_print_dif_err(prm); + } else { ctio->u.status1.flags &= ~cpu_to_le16(CTIO7_FLAGS_STATUS_MODE_0); @@ -2546,19 +2659,9 @@ skip_explict_conf: /* Sense with len > 24, is it possible ??? */ } - - -/* diff */ static inline int qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) { - /* - * Uncomment when corresponding SCSI changes are done. - * - if (!sp->cmd->prot_chk) - return 0; - * - */ switch (se_cmd->prot_op) { case TARGET_PROT_DOUT_INSERT: case TARGET_PROT_DIN_STRIP: @@ -2579,16 +2682,38 @@ qlt_hba_err_chk_enabled(struct se_cmd *se_cmd) return 0; } +static inline int +qla_tgt_ref_mask_check(struct se_cmd *se_cmd) +{ + switch (se_cmd->prot_op) { + case TARGET_PROT_DIN_INSERT: + case TARGET_PROT_DOUT_INSERT: + case TARGET_PROT_DIN_STRIP: + case TARGET_PROT_DOUT_STRIP: + case TARGET_PROT_DIN_PASS: + case TARGET_PROT_DOUT_PASS: + return 1; + default: + return 0; + } + return 0; +} + /* - * qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command - * + * qla_tgt_set_dif_tags - Extract Ref and App tags from SCSI command */ -static inline void -qlt_set_t10dif_tags(struct se_cmd *se_cmd, struct crc_context *ctx) +static void +qla_tgt_set_dif_tags(struct qla_tgt_cmd *cmd, struct crc_context *ctx, + uint16_t *pfw_prot_opts) { + struct se_cmd *se_cmd = &cmd->se_cmd; uint32_t lba = 0xffffffff & se_cmd->t_task_lba; + scsi_qla_host_t *vha = cmd->tgt->vha; + struct qla_hw_data *ha = vha->hw; + uint32_t t32 = 0; - /* wait til Mode Sense/Select cmd, modepage Ah, subpage 2 + /* + * wait till Mode Sense/Select cmd, modepage Ah, subpage 2 * have been immplemented by TCM, before AppTag is avail. * Look for modesense_handlers[] */ @@ -2596,65 +2721,73 @@ qlt_set_t10dif_tags(struct se_cmd *se_cmd, struct crc_context *ctx) ctx->app_tag_mask[0] = 0x0; ctx->app_tag_mask[1] = 0x0; + if (IS_PI_UNINIT_CAPABLE(ha)) { + if ((se_cmd->prot_type == TARGET_DIF_TYPE1_PROT) || + (se_cmd->prot_type == TARGET_DIF_TYPE2_PROT)) + *pfw_prot_opts |= PO_DIS_VALD_APP_ESC; + else if (se_cmd->prot_type == TARGET_DIF_TYPE3_PROT) + *pfw_prot_opts |= PO_DIS_VALD_APP_REF_ESC; + } + + t32 = ha->tgt.tgt_ops->get_dif_tags(cmd, pfw_prot_opts); + switch (se_cmd->prot_type) { case TARGET_DIF_TYPE0_PROT: /* - * No check for ql2xenablehba_err_chk, as it would be an - * I/O error if hba tag generation is not done. + * No check for ql2xenablehba_err_chk, as it + * would be an I/O error if hba tag generation + * is not done. */ ctx->ref_tag = cpu_to_le32(lba); - - if (!qlt_hba_err_chk_enabled(se_cmd)) - break; - /* enable ALL bytes of the ref tag */ ctx->ref_tag_mask[0] = 0xff; ctx->ref_tag_mask[1] = 0xff; ctx->ref_tag_mask[2] = 0xff; ctx->ref_tag_mask[3] = 0xff; break; - /* - * For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and - * 16 bit app tag. - */ case TARGET_DIF_TYPE1_PROT: - ctx->ref_tag = cpu_to_le32(lba); - - if (!qlt_hba_err_chk_enabled(se_cmd)) - break; - - /* enable ALL bytes of the ref tag */ - ctx->ref_tag_mask[0] = 0xff; - ctx->ref_tag_mask[1] = 0xff; - ctx->ref_tag_mask[2] = 0xff; - ctx->ref_tag_mask[3] = 0xff; - break; - /* - * For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to - * match LBA in CDB + N - */ + /* + * For TYPE 1 protection: 16 bit GUARD tag, 32 bit + * REF tag, and 16 bit app tag. + */ + ctx->ref_tag = cpu_to_le32(lba); + if (!qla_tgt_ref_mask_check(se_cmd) || + !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { + *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; + break; + } + /* enable ALL bytes of the ref tag */ + ctx->ref_tag_mask[0] = 0xff; + ctx->ref_tag_mask[1] = 0xff; + ctx->ref_tag_mask[2] = 0xff; + ctx->ref_tag_mask[3] = 0xff; + break; case TARGET_DIF_TYPE2_PROT: - ctx->ref_tag = cpu_to_le32(lba); - - if (!qlt_hba_err_chk_enabled(se_cmd)) - break; - - /* enable ALL bytes of the ref tag */ - ctx->ref_tag_mask[0] = 0xff; - ctx->ref_tag_mask[1] = 0xff; - ctx->ref_tag_mask[2] = 0xff; - ctx->ref_tag_mask[3] = 0xff; - break; - - /* For Type 3 protection: 16 bit GUARD only */ + /* + * For TYPE 2 protection: 16 bit GUARD + 32 bit REF + * tag has to match LBA in CDB + N + */ + ctx->ref_tag = cpu_to_le32(lba); + if (!qla_tgt_ref_mask_check(se_cmd) || + !(ha->tgt.tgt_ops->chk_dif_tags(t32))) { + *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; + break; + } + /* enable ALL bytes of the ref tag */ + ctx->ref_tag_mask[0] = 0xff; + ctx->ref_tag_mask[1] = 0xff; + ctx->ref_tag_mask[2] = 0xff; + ctx->ref_tag_mask[3] = 0xff; + break; case TARGET_DIF_TYPE3_PROT: - ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = - ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; - break; + /* For TYPE 3 protection: 16 bit GUARD only */ + *pfw_prot_opts |= PO_DIS_REF_TAG_VALD; + ctx->ref_tag_mask[0] = ctx->ref_tag_mask[1] = + ctx->ref_tag_mask[2] = ctx->ref_tag_mask[3] = 0x00; + break; } } - static inline int qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) { @@ -2673,6 +2806,7 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) struct se_cmd *se_cmd = &cmd->se_cmd; uint32_t h; struct atio_from_isp *atio = &prm->cmd->atio; + struct qla_tc_param tc; uint16_t t16; ha = vha->hw; @@ -2698,16 +2832,15 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) case TARGET_PROT_DIN_INSERT: case TARGET_PROT_DOUT_STRIP: transfer_length = data_bytes; - data_bytes += dif_bytes; + if (cmd->prot_sg_cnt) + data_bytes += dif_bytes; break; - case TARGET_PROT_DIN_STRIP: case TARGET_PROT_DOUT_INSERT: case TARGET_PROT_DIN_PASS: case TARGET_PROT_DOUT_PASS: transfer_length = data_bytes + dif_bytes; break; - default: BUG(); break; @@ -2743,7 +2876,6 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) break; } - /* ---- PKT ---- */ /* Update entry type to indicate Command Type CRC_2 IOCB */ pkt->entry_type = CTIO_CRC2; @@ -2761,9 +2893,8 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) } else ha->tgt.cmds[h-1] = prm->cmd; - pkt->handle = h | CTIO_COMPLETION_HANDLE_MARK; - pkt->nport_handle = prm->cmd->loop_id; + pkt->nport_handle = cpu_to_le16(prm->cmd->loop_id); pkt->timeout = cpu_to_le16(QLA_TGT_TIMEOUT); pkt->initiator_id[0] = atio->u.isp24.fcp_hdr.s_id[2]; pkt->initiator_id[1] = atio->u.isp24.fcp_hdr.s_id[1]; @@ -2784,12 +2915,10 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) else if (cmd->dma_data_direction == DMA_FROM_DEVICE) pkt->flags = cpu_to_le16(CTIO7_FLAGS_DATA_OUT); - pkt->dseg_count = prm->tot_dsds; /* Fibre channel byte count */ pkt->transfer_length = cpu_to_le32(transfer_length); - /* ----- CRC context -------- */ /* Allocate CRC context from global pool */ @@ -2809,13 +2938,12 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) /* Set handle */ crc_ctx_pkt->handle = pkt->handle; - qlt_set_t10dif_tags(se_cmd, crc_ctx_pkt); + qla_tgt_set_dif_tags(cmd, crc_ctx_pkt, &fw_prot_opts); pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma)); pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma)); pkt->crc_context_len = CRC_CONTEXT_LEN_FW; - if (!bundling) { cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address; } else { @@ -2836,16 +2964,24 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes); crc_ctx_pkt->guard_seed = cpu_to_le16(0); + memset((uint8_t *)&tc, 0 , sizeof(tc)); + tc.vha = vha; + tc.blk_sz = cmd->blk_sz; + tc.bufflen = cmd->bufflen; + tc.sg = cmd->sg; + tc.prot_sg = cmd->prot_sg; + tc.ctx = crc_ctx_pkt; + tc.ctx_dsd_alloced = &cmd->ctx_dsd_alloced; /* Walks data segments */ pkt->flags |= cpu_to_le16(CTIO7_FLAGS_DSD_PTR); if (!bundling && prm->prot_seg_cnt) { if (qla24xx_walk_and_build_sglist_no_difb(ha, NULL, cur_dsd, - prm->tot_dsds, cmd)) + prm->tot_dsds, &tc)) goto crc_queuing_error; } else if (qla24xx_walk_and_build_sglist(ha, NULL, cur_dsd, - (prm->tot_dsds - prm->prot_seg_cnt), cmd)) + (prm->tot_dsds - prm->prot_seg_cnt), &tc)) goto crc_queuing_error; if (bundling && prm->prot_seg_cnt) { @@ -2854,18 +2990,18 @@ qlt_build_ctio_crc2_pkt(struct qla_tgt_prm *prm, scsi_qla_host_t *vha) cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address; if (qla24xx_walk_and_build_prot_sglist(ha, NULL, cur_dsd, - prm->prot_seg_cnt, cmd)) + prm->prot_seg_cnt, &tc)) goto crc_queuing_error; } return QLA_SUCCESS; crc_queuing_error: /* Cleanup will be performed by the caller */ + vha->hw->tgt.cmds[h - 1] = NULL; return QLA_FUNCTION_FAILED; } - /* * Callback to setup response of xmit_type of QLA_TGT_XMIT_DATA and * * QLA_TGT_XMIT_STATUS for >= 24xx silicon @@ -3113,139 +3249,113 @@ EXPORT_SYMBOL(qlt_rdy_to_xfer); /* - * Checks the guard or meta-data for the type of error - * detected by the HBA. + * it is assumed either hardware_lock or qpair lock is held. */ -static inline int +static void qlt_handle_dif_error(struct scsi_qla_host *vha, struct qla_tgt_cmd *cmd, - struct ctio_crc_from_fw *sts) + struct ctio_crc_from_fw *sts) { uint8_t *ap = &sts->actual_dif[0]; uint8_t *ep = &sts->expected_dif[0]; - uint32_t e_ref_tag, a_ref_tag; - uint16_t e_app_tag, a_app_tag; - uint16_t e_guard, a_guard; uint64_t lba = cmd->se_cmd.t_task_lba; + uint8_t scsi_status, sense_key, asc, ascq; + unsigned long flags; - a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); - a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); - a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); - - e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); - e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); - e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); - - ql_dbg(ql_dbg_tgt, vha, 0xe075, - "iocb(s) %p Returned STATUS.\n", sts); - - ql_dbg(ql_dbg_tgt, vha, 0xf075, - "dif check TGT cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x]\n", - cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, - a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, a_guard, e_guard); - - /* - * Ignore sector if: - * For type 3: ref & app tag is all 'f's - * For type 0,1,2: app tag is all 'f's - */ - if ((a_app_tag == 0xffff) && - ((cmd->se_cmd.prot_type != TARGET_DIF_TYPE3_PROT) || - (a_ref_tag == 0xffffffff))) { - uint32_t blocks_done; - - /* 2TB boundary case covered automatically with this */ - blocks_done = e_ref_tag - (uint32_t)lba + 1; - cmd->se_cmd.bad_sector = e_ref_tag; - cmd->se_cmd.pi_err = 0; - ql_dbg(ql_dbg_tgt, vha, 0xf074, - "need to return scsi good\n"); - - /* Update protection tag */ - if (cmd->prot_sg_cnt) { - uint32_t i, k = 0, num_ent; - struct scatterlist *sg, *sgl; - + cmd->trc_flags |= TRC_DIF_ERR; - sgl = cmd->prot_sg; + cmd->a_guard = be16_to_cpu(*(uint16_t *)(ap + 0)); + cmd->a_app_tag = be16_to_cpu(*(uint16_t *)(ap + 2)); + cmd->a_ref_tag = be32_to_cpu(*(uint32_t *)(ap + 4)); - /* Patch the corresponding protection tags */ - for_each_sg(sgl, sg, cmd->prot_sg_cnt, i) { - num_ent = sg_dma_len(sg) / 8; - if (k + num_ent < blocks_done) { - k += num_ent; - continue; - } - k = blocks_done; - break; - } + cmd->e_guard = be16_to_cpu(*(uint16_t *)(ep + 0)); + cmd->e_app_tag = be16_to_cpu(*(uint16_t *)(ep + 2)); + cmd->e_ref_tag = be32_to_cpu(*(uint32_t *)(ep + 4)); - if (k != blocks_done) { - ql_log(ql_log_warn, vha, 0xf076, - "unexpected tag values tag:lba=%u:%llu)\n", - e_ref_tag, (unsigned long long)lba); - goto out; - } + ql_dbg(ql_dbg_tgt_dif, vha, 0xf075, + "%s: aborted %d state %d\n", __func__, cmd->aborted, cmd->state); -#if 0 - struct sd_dif_tuple *spt; - /* TODO: - * This section came from initiator. Is it valid here? - * should ulp be override with actual val??? - */ - spt = page_address(sg_page(sg)) + sg->offset; - spt += j; + scsi_status = sense_key = asc = ascq = 0; - spt->app_tag = 0xffff; - if (cmd->se_cmd.prot_type == SCSI_PROT_DIF_TYPE3) - spt->ref_tag = 0xffffffff; -#endif - } - - return 0; - } - - /* check guard */ - if (e_guard != a_guard) { - cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; - cmd->se_cmd.bad_sector = cmd->se_cmd.t_task_lba; - - ql_log(ql_log_warn, vha, 0xe076, - "Guard ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", - cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, - a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, - a_guard, e_guard, cmd); - goto out; + /* check appl tag */ + if (cmd->e_app_tag != cmd->a_app_tag) { + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "App Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " + "Ref[%x|%x], App[%x|%x], " + "Guard [%x|%x] cmd=%p ox_id[%04x]", + cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, + cmd->a_ref_tag, cmd->e_ref_tag, + cmd->a_app_tag, cmd->e_app_tag, + cmd->a_guard, cmd->e_guard, + cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); + + cmd->dif_err_code = DIF_ERR_APP; + scsi_status = SAM_STAT_CHECK_CONDITION; + sense_key = ABORTED_COMMAND; + asc = 0x10; + ascq = 0x2; } /* check ref tag */ - if (e_ref_tag != a_ref_tag) { - cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; - cmd->se_cmd.bad_sector = e_ref_tag; - - ql_log(ql_log_warn, vha, 0xe077, - "Ref Tag ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", - cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, - a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, - a_guard, e_guard, cmd); + if (cmd->e_ref_tag != cmd->a_ref_tag) { + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "Ref Tag ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " + "Ref[%x|%x], App[%x|%x], " + "Guard[%x|%x] cmd=%p ox_id[%04x] ", + cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, + cmd->a_ref_tag, cmd->e_ref_tag, + cmd->a_app_tag, cmd->e_app_tag, + cmd->a_guard, cmd->e_guard, + cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); + + cmd->dif_err_code = DIF_ERR_REF; + scsi_status = SAM_STAT_CHECK_CONDITION; + sense_key = ABORTED_COMMAND; + asc = 0x10; + ascq = 0x3; goto out; } - /* check appl tag */ - if (e_app_tag != a_app_tag) { - cmd->se_cmd.pi_err = TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; - cmd->se_cmd.bad_sector = cmd->se_cmd.t_task_lba; - - ql_log(ql_log_warn, vha, 0xe078, - "App Tag ERR: cdb 0x%x lba 0x%llx: [Actual|Expected] Ref Tag[0x%x|0x%x], App Tag [0x%x|0x%x], Guard [0x%x|0x%x] cmd=%p\n", - cmd->atio.u.isp24.fcp_cmnd.cdb[0], lba, - a_ref_tag, e_ref_tag, a_app_tag, e_app_tag, - a_guard, e_guard, cmd); - goto out; + /* check guard */ + if (cmd->e_guard != cmd->a_guard) { + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "Guard ERR: cdb[%x] lba[%llx %llx] blks[%x] [Actual|Expected] " + "Ref[%x|%x], App[%x|%x], " + "Guard [%x|%x] cmd=%p ox_id[%04x]", + cmd->cdb[0], lba, (lba+cmd->num_blks), cmd->num_blks, + cmd->a_ref_tag, cmd->e_ref_tag, + cmd->a_app_tag, cmd->e_app_tag, + cmd->a_guard, cmd->e_guard, + cmd, cmd->atio.u.isp24.fcp_hdr.ox_id); + cmd->dif_err_code = DIF_ERR_GRD; + scsi_status = SAM_STAT_CHECK_CONDITION; + sense_key = ABORTED_COMMAND; + asc = 0x10; + ascq = 0x1; } out: - return 1; -} + switch (cmd->state) { + case QLA_TGT_STATE_NEED_DATA: + /* handle_data will load DIF error code */ + cmd->state = QLA_TGT_STATE_DATA_IN; + vha->hw->tgt.tgt_ops->handle_data(cmd); + break; + default: + spin_lock_irqsave(&cmd->cmd_lock, flags); + if (cmd->aborted) { + spin_unlock_irqrestore(&cmd->cmd_lock, flags); + vha->hw->tgt.tgt_ops->free_cmd(cmd); + break; + } + spin_unlock_irqrestore(&cmd->cmd_lock, flags); + qlt_send_resp_ctio(vha, cmd, scsi_status, sense_key, asc, ascq); + /* assume scsi status gets out on the wire. + * Will not wait for completion. + */ + vha->hw->tgt.tgt_ops->free_cmd(cmd); + break; + } +} /* If hardware_lock held on entry, might drop it, then reaquire */ /* This function sends the appropriate CTIO to ISP 2xxx or 24xx */ @@ -3552,6 +3662,16 @@ static int qlt_term_ctio_exchange(struct scsi_qla_host *vha, void *ctio, { int term = 0; + if (cmd->se_cmd.prot_op) + ql_dbg(ql_dbg_tgt_dif, vha, 0xffff, + "Term DIF cmd: lba[0x%llx|%lld] len[0x%x] " + "se_cmd=%p tag[%x] op %#x/%s", + cmd->lba, cmd->lba, + cmd->num_blks, &cmd->se_cmd, + cmd->atio.u.isp24.exchange_addr, + cmd->se_cmd.prot_op, + prot_op_str(cmd->se_cmd.prot_op)); + if (ctio != NULL) { struct ctio7_from_24xx *c = (struct ctio7_from_24xx *)ctio; term = !(c->flags & @@ -3769,32 +3889,15 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, struct ctio_crc_from_fw *crc = (struct ctio_crc_from_fw *)ctio; ql_dbg(ql_dbg_tgt_mgt, vha, 0xf073, - "qla_target(%d): CTIO with DIF_ERROR status %x received (state %x, se_cmd %p) actual_dif[0x%llx] expect_dif[0x%llx]\n", + "qla_target(%d): CTIO with DIF_ERROR status %x " + "received (state %x, ulp_cmd %p) actual_dif[0x%llx] " + "expect_dif[0x%llx]\n", vha->vp_idx, status, cmd->state, se_cmd, *((u64 *)&crc->actual_dif[0]), *((u64 *)&crc->expected_dif[0])); - if (qlt_handle_dif_error(vha, cmd, ctio)) { - if (cmd->state == QLA_TGT_STATE_NEED_DATA) { - /* scsi Write/xfer rdy complete */ - goto skip_term; - } else { - /* scsi read/xmit respond complete - * call handle dif to send scsi status - * rather than terminate exchange. - */ - cmd->state = QLA_TGT_STATE_PROCESSED; - ha->tgt.tgt_ops->handle_dif_err(cmd); - return; - } - } else { - /* Need to generate a SCSI good completion. - * because FW did not send scsi status. - */ - status = 0; - goto skip_term; - } - break; + qlt_handle_dif_error(vha, cmd, ctio); + return; } default: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf05b, @@ -3817,7 +3920,6 @@ static void qlt_do_ctio_completion(struct scsi_qla_host *vha, uint32_t handle, return; } } -skip_term: if (cmd->state == QLA_TGT_STATE_PROCESSED) { cmd->trc_flags |= TRC_CTIO_DONE; diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index a7f90dcaae37..c35f889b94a6 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -378,6 +378,14 @@ static inline void adjust_corrupted_atio(struct atio_from_isp *atio) atio->u.isp24.fcp_cmnd.add_cdb_len = 0; } +static inline int get_datalen_for_atio(struct atio_from_isp *atio) +{ + int len = atio->u.isp24.fcp_cmnd.add_cdb_len; + + return (be32_to_cpu(get_unaligned((uint32_t *) + &atio->u.isp24.fcp_cmnd.add_cdb[len * 4]))); +} + #define CTIO_TYPE7 0x12 /* Continue target I/O entry (for 24xx) */ /* @@ -667,7 +675,6 @@ struct qla_tgt_func_tmpl { int (*handle_cmd)(struct scsi_qla_host *, struct qla_tgt_cmd *, unsigned char *, uint32_t, int, int, int); void (*handle_data)(struct qla_tgt_cmd *); - void (*handle_dif_err)(struct qla_tgt_cmd *); int (*handle_tmr)(struct qla_tgt_mgmt_cmd *, uint32_t, uint16_t, uint32_t); void (*free_cmd)(struct qla_tgt_cmd *); @@ -684,6 +691,8 @@ struct qla_tgt_func_tmpl { void (*clear_nacl_from_fcport_map)(struct fc_port *); void (*put_sess)(struct fc_port *); void (*shutdown_sess)(struct fc_port *); + int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts); + int (*chk_dif_tags)(uint32_t tag); }; int qla2x00_wait_for_hba_online(struct scsi_qla_host *); @@ -720,8 +729,8 @@ int qla2x00_wait_for_hba_online(struct scsi_qla_host *); #define QLA_TGT_ABORT_ALL 0xFFFE #define QLA_TGT_NEXUS_LOSS_SESS 0xFFFD #define QLA_TGT_NEXUS_LOSS 0xFFFC -#define QLA_TGT_ABTS 0xFFFB -#define QLA_TGT_2G_ABORT_TASK 0xFFFA +#define QLA_TGT_ABTS 0xFFFB +#define QLA_TGT_2G_ABORT_TASK 0xFFFA /* Notify Acknowledge flags */ #define NOTIFY_ACK_RES_COUNT BIT_8 @@ -845,6 +854,7 @@ enum trace_flags { TRC_CMD_FREE = BIT_17, TRC_DATA_IN = BIT_18, TRC_ABORT = BIT_19, + TRC_DIF_ERR = BIT_20, }; struct qla_tgt_cmd { @@ -862,7 +872,6 @@ struct qla_tgt_cmd { unsigned int sg_mapped:1; unsigned int free_sg:1; unsigned int write_data_transferred:1; - unsigned int ctx_dsd_alloced:1; unsigned int q_full:1; unsigned int term_exchg:1; unsigned int cmd_sent_to_fw:1; @@ -885,11 +894,25 @@ struct qla_tgt_cmd { struct list_head cmd_list; struct atio_from_isp atio; - /* t10dif */ + + uint8_t ctx_dsd_alloced; + + /* T10-DIF */ +#define DIF_ERR_NONE 0 +#define DIF_ERR_GRD 1 +#define DIF_ERR_REF 2 +#define DIF_ERR_APP 3 + int8_t dif_err_code; struct scatterlist *prot_sg; uint32_t prot_sg_cnt; - uint32_t blk_sz; + uint32_t blk_sz, num_blks; + uint8_t scsi_status, sense_key, asc, ascq; + struct crc_context *ctx; + uint8_t *cdb; + uint64_t lba; + uint16_t a_guard, e_guard, a_app_tag, e_app_tag; + uint32_t a_ref_tag, e_ref_tag; uint64_t jiffies_at_alloc; uint64_t jiffies_at_free; @@ -1053,4 +1076,7 @@ extern int qlt_free_qfull_cmds(struct scsi_qla_host *); extern void qlt_logo_completion_handler(fc_port_t *, int); extern void qlt_do_generation_tick(struct scsi_qla_host *, int *); +void qlt_send_resp_ctio(scsi_qla_host_t *, struct qla_tgt_cmd *, uint8_t, + uint8_t, uint8_t, uint8_t); + #endif /* __QLA_TARGET_H */ diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 8e8ab0fa9672..7443e4efa3ae 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -531,6 +531,24 @@ static void tcm_qla2xxx_handle_data_work(struct work_struct *work) return; } + switch (cmd->dif_err_code) { + case DIF_ERR_GRD: + cmd->se_cmd.pi_err = + TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED; + break; + case DIF_ERR_REF: + cmd->se_cmd.pi_err = + TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED; + break; + case DIF_ERR_APP: + cmd->se_cmd.pi_err = + TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED; + break; + case DIF_ERR_NONE: + default: + break; + } + if (cmd->se_cmd.pi_err) transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); @@ -555,25 +573,23 @@ static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd) queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work); } -static void tcm_qla2xxx_handle_dif_work(struct work_struct *work) +static int tcm_qla2xxx_chk_dif_tags(uint32_t tag) { - struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work); - - /* take an extra kref to prevent cmd free too early. - * need to wait for SCSI status/check condition to - * finish responding generate by transport_generic_request_failure. - */ - kref_get(&cmd->se_cmd.cmd_kref); - transport_generic_request_failure(&cmd->se_cmd, cmd->se_cmd.pi_err); + return 0; } -/* - * Called from qla_target.c:qlt_do_ctio_completion() - */ -static void tcm_qla2xxx_handle_dif_err(struct qla_tgt_cmd *cmd) +static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd, + uint16_t *pfw_prot_opts) { - INIT_WORK(&cmd->work, tcm_qla2xxx_handle_dif_work); - queue_work(tcm_qla2xxx_free_wq, &cmd->work); + struct se_cmd *se_cmd = &cmd->se_cmd; + + if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD)) + *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK; + + if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG)) + *pfw_prot_opts |= PO_DIS_APP_TAG_VALD; + + return 0; } /* @@ -1610,7 +1626,6 @@ static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id, static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { .handle_cmd = tcm_qla2xxx_handle_cmd, .handle_data = tcm_qla2xxx_handle_data, - .handle_dif_err = tcm_qla2xxx_handle_dif_err, .handle_tmr = tcm_qla2xxx_handle_tmr, .free_cmd = tcm_qla2xxx_free_cmd, .free_mcmd = tcm_qla2xxx_free_mcmd, @@ -1622,6 +1637,8 @@ static struct qla_tgt_func_tmpl tcm_qla2xxx_template = { .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map, .put_sess = tcm_qla2xxx_put_sess, .shutdown_sess = tcm_qla2xxx_shutdown_sess, + .get_dif_tags = tcm_qla2xxx_dif_tags, + .chk_dif_tags = tcm_qla2xxx_chk_dif_tags, }; static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport) -- cgit From 54b9993c8cf2d77c0f23be828a22e0817f742442 Mon Sep 17 00:00:00 2001 From: Anil Gurumurthy Date: Wed, 15 Mar 2017 09:48:50 -0700 Subject: qla2xxx: Export DIF stats via debugfs Signed-off-by: Anil Gurumurthy Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_def.h | 12 ++++++++++++ drivers/scsi/qla2xxx/qla_dfs.c | 15 +++++++++++++++ 2 files changed, 27 insertions(+) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 9d1d3dcf1c87..8228dfac6a31 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3108,6 +3108,16 @@ struct qla_chip_state_84xx { uint32_t gold_fw_version; }; +struct qla_dif_statistics { + uint64_t dif_input_bytes; + uint64_t dif_output_bytes; + uint64_t dif_input_requests; + uint64_t dif_output_requests; + uint32_t dif_guard_err; + uint32_t dif_ref_tag_err; + uint32_t dif_app_tag_err; +}; + struct qla_statistics { uint32_t total_isp_aborts; uint64_t input_bytes; @@ -3120,6 +3130,8 @@ struct qla_statistics { uint32_t stat_max_pend_cmds; uint32_t stat_max_qfull_cmds_alloc; uint32_t stat_max_qfull_cmds_dropped; + + struct qla_dif_statistics qla_dif_stats; }; struct bidi_statistics { diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index b48cce696bac..3b35905619b0 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -114,6 +114,21 @@ qla_dfs_tgt_counters_show(struct seq_file *s, void *unused) seq_printf(s, "num Q full sent = %lld\n", vha->tgt_counters.num_q_full_sent); + /* DIF stats */ + seq_printf(s, "DIF Inp Bytes = %lld\n", + vha->qla_stats.qla_dif_stats.dif_input_bytes); + seq_printf(s, "DIF Outp Bytes = %lld\n", + vha->qla_stats.qla_dif_stats.dif_output_bytes); + seq_printf(s, "DIF Inp Req = %lld\n", + vha->qla_stats.qla_dif_stats.dif_input_requests); + seq_printf(s, "DIF Outp Req = %lld\n", + vha->qla_stats.qla_dif_stats.dif_output_requests); + seq_printf(s, "DIF Guard err = %d\n", + vha->qla_stats.qla_dif_stats.dif_guard_err); + seq_printf(s, "DIF Ref tag err = %d\n", + vha->qla_stats.qla_dif_stats.dif_ref_tag_err); + seq_printf(s, "DIF App tag err = %d\n", + vha->qla_stats.qla_dif_stats.dif_app_tag_err); return 0; } -- cgit From f1443eebca7792b3b8b41b27652d67ddc5d31fa2 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:51 -0700 Subject: qla2xxx: Add async new target notification Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 6 +++--- drivers/scsi/qla2xxx/qla_target.h | 1 + 2 files changed, 4 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 532004981dbd..563116188c43 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -6005,13 +6005,13 @@ int qlt_add_target(struct qla_hw_data *ha, struct scsi_qla_host *base_vha) tgt->datasegs_per_cmd = QLA_TGT_DATASEGS_PER_CMD_24XX; tgt->datasegs_per_cont = QLA_TGT_DATASEGS_PER_CONT_24XX; - if (base_vha->fc_vport) - return 0; - mutex_lock(&qla_tgt_mutex); list_add_tail(&tgt->tgt_list_entry, &qla_tgt_glist); mutex_unlock(&qla_tgt_mutex); + if (ha->tgt.tgt_ops && ha->tgt.tgt_ops->add_target) + ha->tgt.tgt_ops->add_target(base_vha); + return 0; } diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h index c35f889b94a6..d64420251194 100644 --- a/drivers/scsi/qla2xxx/qla_target.h +++ b/drivers/scsi/qla2xxx/qla_target.h @@ -693,6 +693,7 @@ struct qla_tgt_func_tmpl { void (*shutdown_sess)(struct fc_port *); int (*get_dif_tags)(struct qla_tgt_cmd *cmd, uint16_t *pfw_prot_opts); int (*chk_dif_tags)(uint32_t tag); + void (*add_target)(struct scsi_qla_host *); }; int qla2x00_wait_for_hba_online(struct scsi_qla_host *); -- cgit From 15f30a5752287f20c7de428423c34bc51cfbe465 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:52 -0700 Subject: qla2xxx: Use IOCB interface to submit non-critical MBX. The Mailbox interface is currently over subscribed. We like to reserve the Mailbox interface for the chip managment and link initialization. Any non essential Mailbox command will be routed through the IOCB interface. The IOCB interface is able to absorb more commands. Following commands are being routed through IOCB interface - Get ID List (007Ch) - Get Port DB (0064h) - Get Link Priv Stats (006Dh) Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_def.h | 12 +- drivers/scsi/qla2xxx/qla_gbl.h | 10 +- drivers/scsi/qla2xxx/qla_init.c | 46 +------ drivers/scsi/qla2xxx/qla_isr.c | 2 +- drivers/scsi/qla2xxx/qla_mbx.c | 270 ++++++++++++++++++++++++++++++++++++-- drivers/scsi/qla2xxx/qla_target.c | 4 +- 6 files changed, 279 insertions(+), 65 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 8228dfac6a31..ae38b7a789b1 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -395,11 +395,15 @@ struct srb_iocb { struct completion comp; } abt; struct ct_arg ctarg; +#define MAX_IOCB_MB_REG 28 +#define SIZEOF_IOCB_MB_REG (MAX_IOCB_MB_REG * sizeof(uint16_t)) struct { - __le16 in_mb[28]; /* fr fw */ - __le16 out_mb[28]; /* to fw */ + __le16 in_mb[MAX_IOCB_MB_REG]; /* from FW */ + __le16 out_mb[MAX_IOCB_MB_REG]; /* to FW */ void *out, *in; dma_addr_t out_dma, in_dma; + struct completion comp; + int rc; } mbx; struct { struct imm_ntfy_from_isp *ntfy; @@ -437,7 +441,7 @@ typedef struct srb { uint32_t handle; uint16_t flags; uint16_t type; - char *name; + const char *name; int iocbs; struct qla_qpair *qpair; u32 gen1; /* scratch */ @@ -3364,6 +3368,8 @@ struct qla_hw_data { uint32_t exlogins_enabled:1; uint32_t exchoffld_enabled:1; /* 35 bits */ + + uint32_t fw_started:1; } flags; /* This spinlock is used to protect "io transactions", you must diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index ca6f122e5865..323b912b47f7 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -193,6 +193,7 @@ extern int qla24xx_post_upd_fcport_work(struct scsi_qla_host *, fc_port_t *); void qla2x00_handle_login_done_event(struct scsi_qla_host *, fc_port_t *, uint16_t *); int qla24xx_post_gnl_work(struct scsi_qla_host *, fc_port_t *); +int qla24xx_async_abort_cmd(srb_t *); /* * Global Functions in qla_mid.c source file. @@ -368,7 +369,7 @@ qla2x00_get_link_status(scsi_qla_host_t *, uint16_t, struct link_statistics *, extern int qla24xx_get_isp_stats(scsi_qla_host_t *, struct link_statistics *, - dma_addr_t, uint); + dma_addr_t, uint16_t); extern int qla24xx_abort_command(srb_t *); extern int qla24xx_async_abort_command(srb_t *); @@ -472,6 +473,13 @@ qla2x00_dump_mctp_data(scsi_qla_host_t *, dma_addr_t, uint32_t, uint32_t); extern int qla26xx_dport_diagnostics(scsi_qla_host_t *, void *, uint, uint); +int qla24xx_send_mb_cmd(struct scsi_qla_host *, mbx_cmd_t *); +int qla24xx_gpdb_wait(struct scsi_qla_host *, fc_port_t *, u8); +int qla24xx_gidlist_wait(struct scsi_qla_host *, void *, dma_addr_t, + uint16_t *); +int __qla24xx_parse_gpdb(struct scsi_qla_host *, fc_port_t *, + struct port_database_24xx *); + /* * Global Function Prototypes in qla_isr.c source file. */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index a7865a5d556d..b1bfa63f7d4e 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -629,7 +629,6 @@ void qla24xx_async_gpdb_sp_done(void *s, int res) struct srb *sp = s; struct scsi_qla_host *vha = sp->vha; struct qla_hw_data *ha = vha->hw; - uint64_t zero = 0; struct port_database_24xx *pd; fc_port_t *fcport = sp->fcport; u16 *mb = sp->u.iocb_cmd.u.mbx.in_mb; @@ -649,48 +648,7 @@ void qla24xx_async_gpdb_sp_done(void *s, int res) pd = (struct port_database_24xx *)sp->u.iocb_cmd.u.mbx.in; - /* Check for logged in state. */ - if (pd->current_login_state != PDS_PRLI_COMPLETE && - pd->last_login_state != PDS_PRLI_COMPLETE) { - ql_dbg(ql_dbg_mbx, vha, 0xffff, - "Unable to verify login-state (%x/%x) for " - "loop_id %x.\n", pd->current_login_state, - pd->last_login_state, fcport->loop_id); - rval = QLA_FUNCTION_FAILED; - goto gpd_error_out; - } - - if (fcport->loop_id == FC_NO_LOOP_ID || - (memcmp(fcport->port_name, (uint8_t *)&zero, 8) && - memcmp(fcport->port_name, pd->port_name, 8))) { - /* We lost the device mid way. */ - rval = QLA_NOT_LOGGED_IN; - goto gpd_error_out; - } - - /* Names are little-endian. */ - memcpy(fcport->node_name, pd->node_name, WWN_SIZE); - - /* Get port_id of device. */ - fcport->d_id.b.domain = pd->port_id[0]; - fcport->d_id.b.area = pd->port_id[1]; - fcport->d_id.b.al_pa = pd->port_id[2]; - fcport->d_id.b.rsvd_1 = 0; - - /* If not target must be initiator or unknown type. */ - if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0) - fcport->port_type = FCT_INITIATOR; - else - fcport->port_type = FCT_TARGET; - - /* Passback COS information. */ - fcport->supported_classes = (pd->flags & PDF_CLASS_2) ? - FC_COS_CLASS2 : FC_COS_CLASS3; - - if (pd->prli_svc_param_word_3[0] & BIT_7) { - fcport->flags |= FCF_CONF_COMP_SUPPORTED; - fcport->conf_compl_supported = 1; - } + rval = __qla24xx_parse_gpdb(vha, fcport, pd); gpd_error_out: memset(&ea, 0, sizeof(ea)); @@ -1266,7 +1224,7 @@ qla24xx_abort_sp_done(void *ptr, int res) complete(&abt->u.abt.comp); } -static int +int qla24xx_async_abort_cmd(srb_t *cmd_sp) { scsi_qla_host_t *vha = cmd_sp->vha; diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index b2c6da752edd..3953c8d6af69 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2692,7 +2692,7 @@ qla24xx_abort_iocb_entry(scsi_qla_host_t *vha, struct req_que *req, return; abt = &sp->u.iocb_cmd; - abt->u.abt.comp_status = le32_to_cpu(pkt->nport_handle); + abt->u.abt.comp_status = le16_to_cpu(pkt->nport_handle); sp->done(sp, 0); } diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 35079f417417..e40ed570d3c1 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -10,6 +10,28 @@ #include #include +static struct mb_cmd_name { + uint16_t cmd; + const char *str; +} mb_str[] = { + {MBC_GET_PORT_DATABASE, "GPDB"}, + {MBC_GET_ID_LIST, "GIDList"}, + {MBC_GET_LINK_PRIV_STATS, "Stats"}, +}; + +static const char *mb_to_str(uint16_t cmd) +{ + int i; + struct mb_cmd_name *e; + + for (i = 0; i < ARRAY_SIZE(mb_str); i++) { + e = mb_str + i; + if (cmd == e->cmd) + return e->str; + } + return "unknown"; +} + static struct rom_cmd { uint16_t cmd; } rom_cmds[] = { @@ -2818,7 +2840,7 @@ qla2x00_get_link_status(scsi_qla_host_t *vha, uint16_t loop_id, int qla24xx_get_isp_stats(scsi_qla_host_t *vha, struct link_statistics *stats, - dma_addr_t stats_dma, uint options) + dma_addr_t stats_dma, uint16_t options) { int rval; mbx_cmd_t mc; @@ -2828,19 +2850,17 @@ qla24xx_get_isp_stats(scsi_qla_host_t *vha, struct link_statistics *stats, ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1088, "Entered %s.\n", __func__); - mcp->mb[0] = MBC_GET_LINK_PRIV_STATS; - mcp->mb[2] = MSW(stats_dma); - mcp->mb[3] = LSW(stats_dma); - mcp->mb[6] = MSW(MSD(stats_dma)); - mcp->mb[7] = LSW(MSD(stats_dma)); - mcp->mb[8] = sizeof(struct link_statistics) / 4; - mcp->mb[9] = vha->vp_idx; - mcp->mb[10] = options; - mcp->out_mb = MBX_10|MBX_9|MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_0; - mcp->in_mb = MBX_2|MBX_1|MBX_0; - mcp->tov = MBX_TOV_SECONDS; - mcp->flags = IOCTL_CMD; - rval = qla2x00_mailbox_command(vha, mcp); + memset(&mc, 0, sizeof(mc)); + mc.mb[0] = MBC_GET_LINK_PRIV_STATS; + mc.mb[2] = MSW(stats_dma); + mc.mb[3] = LSW(stats_dma); + mc.mb[6] = MSW(MSD(stats_dma)); + mc.mb[7] = LSW(MSD(stats_dma)); + mc.mb[8] = sizeof(struct link_statistics) / 4; + mc.mb[9] = cpu_to_le16(vha->vp_idx); + mc.mb[10] = cpu_to_le16(options); + + rval = qla24xx_send_mb_cmd(vha, &mc); if (rval == QLA_SUCCESS) { if (mcp->mb[0] != MBS_COMMAND_COMPLETE) { @@ -5827,3 +5847,225 @@ qla26xx_dport_diagnostics(scsi_qla_host_t *vha, return rval; } + +static void qla2x00_async_mb_sp_done(void *s, int res) +{ + struct srb *sp = s; + + sp->u.iocb_cmd.u.mbx.rc = res; + + complete(&sp->u.iocb_cmd.u.mbx.comp); + /* don't free sp here. Let the caller do the free */ +} + +/* + * This mailbox uses the iocb interface to send MB command. + * This allows non-critial (non chip setup) command to go + * out in parrallel. + */ +int qla24xx_send_mb_cmd(struct scsi_qla_host *vha, mbx_cmd_t *mcp) +{ + int rval = QLA_FUNCTION_FAILED; + srb_t *sp; + struct srb_iocb *c; + + if (!vha->hw->flags.fw_started) + goto done; + + sp = qla2x00_get_sp(vha, NULL, GFP_KERNEL); + if (!sp) + goto done; + + sp->type = SRB_MB_IOCB; + sp->name = mb_to_str(mcp->mb[0]); + + qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2); + + memcpy(sp->u.iocb_cmd.u.mbx.out_mb, mcp->mb, SIZEOF_IOCB_MB_REG); + + c = &sp->u.iocb_cmd; + c->timeout = qla2x00_async_iocb_timeout; + init_completion(&c->u.mbx.comp); + + sp->done = qla2x00_async_mb_sp_done; + + rval = qla2x00_start_sp(sp); + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0xffff, + "%s: %s Failed submission. %x.\n", + __func__, sp->name, rval); + goto done_free_sp; + } + + ql_dbg(ql_dbg_mbx, vha, 0xffff, "MB:%s hndl %x submitted\n", + sp->name, sp->handle); + + wait_for_completion(&c->u.mbx.comp); + memcpy(mcp->mb, sp->u.iocb_cmd.u.mbx.in_mb, SIZEOF_IOCB_MB_REG); + + rval = c->u.mbx.rc; + switch (rval) { + case QLA_FUNCTION_TIMEOUT: + ql_dbg(ql_dbg_mbx, vha, 0xffff, "%s: %s Timeout. %x.\n", + __func__, sp->name, rval); + break; + case QLA_SUCCESS: + ql_dbg(ql_dbg_mbx, vha, 0xffff, "%s: %s done.\n", + __func__, sp->name); + sp->free(sp); + break; + default: + ql_dbg(ql_dbg_mbx, vha, 0xffff, "%s: %s Failed. %x.\n", + __func__, sp->name, rval); + sp->free(sp); + break; + } + + return rval; + +done_free_sp: + sp->free(sp); +done: + return rval; +} + +/* + * qla24xx_gpdb_wait + * NOTE: Do not call this routine from DPC thread + */ +int qla24xx_gpdb_wait(struct scsi_qla_host *vha, fc_port_t *fcport, u8 opt) +{ + int rval = QLA_FUNCTION_FAILED; + dma_addr_t pd_dma; + struct port_database_24xx *pd; + struct qla_hw_data *ha = vha->hw; + mbx_cmd_t mc; + + if (!vha->hw->flags.fw_started) + goto done; + + pd = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL, &pd_dma); + if (pd == NULL) { + ql_log(ql_log_warn, vha, 0xffff, + "Failed to allocate port database structure.\n"); + goto done_free_sp; + } + memset(pd, 0, max(PORT_DATABASE_SIZE, PORT_DATABASE_24XX_SIZE)); + + memset(&mc, 0, sizeof(mc)); + mc.mb[0] = MBC_GET_PORT_DATABASE; + mc.mb[1] = cpu_to_le16(fcport->loop_id); + mc.mb[2] = MSW(pd_dma); + mc.mb[3] = LSW(pd_dma); + mc.mb[6] = MSW(MSD(pd_dma)); + mc.mb[7] = LSW(MSD(pd_dma)); + mc.mb[9] = cpu_to_le16(vha->vp_idx); + mc.mb[10] = cpu_to_le16((uint16_t)opt); + + rval = qla24xx_send_mb_cmd(vha, &mc); + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0xffff, + "%s: %8phC fail\n", __func__, fcport->port_name); + goto done_free_sp; + } + + rval = __qla24xx_parse_gpdb(vha, fcport, pd); + + ql_dbg(ql_dbg_mbx, vha, 0xffff, "%s: %8phC done\n", + __func__, fcport->port_name); + +done_free_sp: + if (pd) + dma_pool_free(ha->s_dma_pool, pd, pd_dma); +done: + return rval; +} + +int __qla24xx_parse_gpdb(struct scsi_qla_host *vha, fc_port_t *fcport, + struct port_database_24xx *pd) +{ + int rval = QLA_SUCCESS; + uint64_t zero = 0; + + /* Check for logged in state. */ + if (pd->current_login_state != PDS_PRLI_COMPLETE && + pd->last_login_state != PDS_PRLI_COMPLETE) { + ql_dbg(ql_dbg_mbx, vha, 0xffff, + "Unable to verify login-state (%x/%x) for " + "loop_id %x.\n", pd->current_login_state, + pd->last_login_state, fcport->loop_id); + rval = QLA_FUNCTION_FAILED; + goto gpd_error_out; + } + + if (fcport->loop_id == FC_NO_LOOP_ID || + (memcmp(fcport->port_name, (uint8_t *)&zero, 8) && + memcmp(fcport->port_name, pd->port_name, 8))) { + /* We lost the device mid way. */ + rval = QLA_NOT_LOGGED_IN; + goto gpd_error_out; + } + + /* Names are little-endian. */ + memcpy(fcport->node_name, pd->node_name, WWN_SIZE); + memcpy(fcport->port_name, pd->port_name, WWN_SIZE); + + /* Get port_id of device. */ + fcport->d_id.b.domain = pd->port_id[0]; + fcport->d_id.b.area = pd->port_id[1]; + fcport->d_id.b.al_pa = pd->port_id[2]; + fcport->d_id.b.rsvd_1 = 0; + + /* If not target must be initiator or unknown type. */ + if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0) + fcport->port_type = FCT_INITIATOR; + else + fcport->port_type = FCT_TARGET; + + /* Passback COS information. */ + fcport->supported_classes = (pd->flags & PDF_CLASS_2) ? + FC_COS_CLASS2 : FC_COS_CLASS3; + + if (pd->prli_svc_param_word_3[0] & BIT_7) { + fcport->flags |= FCF_CONF_COMP_SUPPORTED; + fcport->conf_compl_supported = 1; + } + +gpd_error_out: + return rval; +} + +/* + * qla24xx_gidlist__wait + * NOTE: don't call this routine from DPC thread. + */ +int qla24xx_gidlist_wait(struct scsi_qla_host *vha, + void *id_list, dma_addr_t id_list_dma, uint16_t *entries) +{ + int rval = QLA_FUNCTION_FAILED; + mbx_cmd_t mc; + + if (!vha->hw->flags.fw_started) + goto done; + + memset(&mc, 0, sizeof(mc)); + mc.mb[0] = MBC_GET_ID_LIST; + mc.mb[2] = MSW(id_list_dma); + mc.mb[3] = LSW(id_list_dma); + mc.mb[6] = MSW(MSD(id_list_dma)); + mc.mb[7] = LSW(MSD(id_list_dma)); + mc.mb[8] = 0; + mc.mb[9] = cpu_to_le16(vha->vp_idx); + + rval = qla24xx_send_mb_cmd(vha, &mc); + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0xffff, + "%s: fail\n", __func__); + } else { + *entries = mc.mb[1]; + ql_dbg(ql_dbg_mbx, vha, 0xffff, + "%s: done\n", __func__); + } +done: + return rval; +} diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 563116188c43..38bdcd325fa4 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1238,7 +1238,7 @@ static int qla24xx_get_loop_id(struct scsi_qla_host *vha, const uint8_t *s_id, } /* Get list of logged in devices */ - rc = qla2x00_get_id_list(vha, gid_list, gid_list_dma, &entries); + rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, &entries); if (rc != QLA_SUCCESS) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf045, "qla_target(%d): get_id_list() failed: %x\n", @@ -5648,7 +5648,7 @@ static fc_port_t *qlt_get_port_database(struct scsi_qla_host *vha, fcport->loop_id = loop_id; - rc = qla2x00_get_port_database(vha, fcport, 0); + rc = qla24xx_gpdb_wait(vha, fcport, 0); if (rc != QLA_SUCCESS) { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf070, "qla_target(%d): Failed to retrieve fcport " -- cgit From c423437e3ff41b8ca551ab6621baf11538dbfe9d Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Wed, 15 Mar 2017 09:48:53 -0700 Subject: qla2xxx: Add DebugFS node to display Port Database Signed-off-by: Himanshu Madhani Signed-off-by: Giridhar Malavali Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_def.h | 2 + drivers/scsi/qla2xxx/qla_dfs.c | 92 ++++++++++++++++++++++++++++++++++++++++-- 2 files changed, 90 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index ae38b7a789b1..089480280558 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3300,6 +3300,8 @@ struct qlt_hw_data { uint8_t tgt_node_name[WWN_SIZE]; struct dentry *dfs_tgt_sess; + struct dentry *dfs_tgt_port_database; + struct list_head q_full_list; uint32_t num_pend_cmds; uint32_t num_qfull_cmds_alloc; diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 3b35905619b0..989e17b0758c 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -19,11 +19,11 @@ qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused) struct qla_hw_data *ha = vha->hw; unsigned long flags; struct fc_port *sess = NULL; - struct qla_tgt *tgt= vha->vha_tgt.qla_tgt; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; - seq_printf(s, "%s\n",vha->host_str); + seq_printf(s, "%s\n", vha->host_str); if (tgt) { - seq_printf(s, "Port ID Port Name Handle\n"); + seq_puts(s, "Port ID Port Name Handle\n"); spin_lock_irqsave(&ha->tgt.sess_lock, flags); list_for_each_entry(sess, &vha->vp_fcports, list) @@ -44,7 +44,6 @@ qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file) return single_open(file, qla2x00_dfs_tgt_sess_show, vha); } - static const struct file_operations dfs_tgt_sess_ops = { .open = qla2x00_dfs_tgt_sess_open, .read = seq_read, @@ -52,6 +51,78 @@ static const struct file_operations dfs_tgt_sess_ops = { .release = single_release, }; +static int +qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused) +{ + scsi_qla_host_t *vha = s->private; + struct qla_hw_data *ha = vha->hw; + struct gid_list_info *gid_list; + dma_addr_t gid_list_dma; + fc_port_t fc_port; + char *id_iter; + int rc, i; + uint16_t entries, loop_id; + struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; + + seq_printf(s, "%s\n", vha->host_str); + if (tgt) { + gid_list = dma_alloc_coherent(&ha->pdev->dev, + qla2x00_gid_list_size(ha), + &gid_list_dma, GFP_KERNEL); + if (!gid_list) { + ql_dbg(ql_dbg_user, vha, 0x705c, + "DMA allocation failed for %u\n", + qla2x00_gid_list_size(ha)); + return 0; + } + + rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, + &entries); + if (rc != QLA_SUCCESS) + goto out_free_id_list; + + id_iter = (char *)gid_list; + + seq_puts(s, "Port Name Port ID Loop ID\n"); + + for (i = 0; i < entries; i++) { + struct gid_list_info *gid = + (struct gid_list_info *)id_iter; + loop_id = le16_to_cpu(gid->loop_id); + memset(&fc_port, 0, sizeof(fc_port_t)); + + fc_port.loop_id = loop_id; + + rc = qla24xx_gpdb_wait(vha, &fc_port, 0); + seq_printf(s, "%8phC %02x%02x%02x %d\n", + fc_port.port_name, fc_port.d_id.b.domain, + fc_port.d_id.b.area, fc_port.d_id.b.al_pa, + fc_port.loop_id); + id_iter += ha->gid_list_info_size; + } +out_free_id_list: + dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), + gid_list, gid_list_dma); + } + + return 0; +} + +static int +qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file) +{ + scsi_qla_host_t *vha = inode->i_private; + + return single_open(file, qla2x00_dfs_tgt_port_database_show, vha); +} + +static const struct file_operations dfs_tgt_port_database_ops = { + .open = qla2x00_dfs_tgt_port_database_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + static int qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) { @@ -296,6 +367,14 @@ create_nodes: goto out; } + ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database", + S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops); + if (!ha->tgt.dfs_tgt_port_database) { + ql_log(ql_log_warn, vha, 0xffff, + "Unable to create debugFS tgt_port_database node.\n"); + goto out; + } + ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha, &dfs_fce_ops); if (!ha->dfs_fce) { @@ -326,6 +405,11 @@ qla2x00_dfs_remove(scsi_qla_host_t *vha) ha->tgt.dfs_tgt_sess = NULL; } + if (ha->tgt.dfs_tgt_port_database) { + debugfs_remove(ha->tgt.dfs_tgt_port_database); + ha->tgt.dfs_tgt_port_database = NULL; + } + if (ha->dfs_fw_resource_cnt) { debugfs_remove(ha->dfs_fw_resource_cnt); ha->dfs_fw_resource_cnt = NULL; -- cgit From 482c9dc79204bb83c3433a59680c787a0b98c000 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:54 -0700 Subject: qla2xxx: Change scsi host lookup method. For target mode, when new scsi command arrive, driver first performs a look up of the SCSI Host. The current look up method is based on the ALPA portion of the NPort ID. For Cisco switch, the ALPA can not be used as the index. Instead, the new search method is based on the full value of the Nport_ID via btree lib. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/Kconfig | 1 + drivers/scsi/qla2xxx/qla_def.h | 2 + drivers/scsi/qla2xxx/qla_gbl.h | 2 + drivers/scsi/qla2xxx/qla_init.c | 14 +++--- drivers/scsi/qla2xxx/qla_mbx.c | 28 ++++-------- drivers/scsi/qla2xxx/qla_os.c | 1 + drivers/scsi/qla2xxx/qla_target.c | 92 +++++++++++++++++++++++++++++++++------ 7 files changed, 100 insertions(+), 40 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/Kconfig b/drivers/scsi/qla2xxx/Kconfig index 67c0d5aa3212..de952935b5d2 100644 --- a/drivers/scsi/qla2xxx/Kconfig +++ b/drivers/scsi/qla2xxx/Kconfig @@ -3,6 +3,7 @@ config SCSI_QLA_FC depends on PCI && SCSI depends on SCSI_FC_ATTRS select FW_LOADER + select BTREE ---help--- This qla2xxx driver supports all QLogic Fibre Channel PCI and PCIe host adapters. diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 089480280558..9251918773b1 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -25,6 +25,7 @@ #include #include #include +#include #include #include @@ -3311,6 +3312,7 @@ struct qlt_hw_data { spinlock_t sess_lock; int rspq_vector_cpuid; spinlock_t atio_lock ____cacheline_aligned; + struct btree_head32 host_map; }; #define MAX_QFULL_CMDS_ALLOC 8192 diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 323b912b47f7..5b2451745e9f 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -854,5 +854,7 @@ extern struct fc_port *qlt_find_sess_invalidate_other(scsi_qla_host_t *, uint64_t wwn, port_id_t port_id, uint16_t loop_id, struct fc_port **); void qla24xx_delete_sess_fn(struct work_struct *); void qlt_unknown_atio_work_fn(struct work_struct *); +void qlt_update_host_map(struct scsi_qla_host *, port_id_t); +void qlt_remove_target_resources(struct qla_hw_data *); #endif /* _QLA_GBL_H */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index b1bfa63f7d4e..b0f6ad3020d3 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3340,8 +3340,8 @@ qla2x00_configure_hba(scsi_qla_host_t *vha) uint8_t domain; char connect_type[22]; struct qla_hw_data *ha = vha->hw; - unsigned long flags; scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev); + port_id_t id; /* Get host addresses. */ rval = qla2x00_get_adapter_id(vha, @@ -3419,13 +3419,11 @@ qla2x00_configure_hba(scsi_qla_host_t *vha) /* Save Host port and loop ID. */ /* byte order - Big Endian */ - vha->d_id.b.domain = domain; - vha->d_id.b.area = area; - vha->d_id.b.al_pa = al_pa; - - spin_lock_irqsave(&ha->vport_slock, flags); - qlt_update_vp_map(vha, SET_AL_PA); - spin_unlock_irqrestore(&ha->vport_slock, flags); + id.b.domain = domain; + id.b.area = area; + id.b.al_pa = al_pa; + id.b.rsvd_1 = 0; + qlt_update_host_map(vha, id); if (!vha->flags.init_done) ql_log(ql_log_info, vha, 0x2010, diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index e40ed570d3c1..53d9579acc74 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -3623,6 +3623,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, scsi_qla_host_t *vp = NULL; unsigned long flags; int found; + port_id_t id; ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b6, "Entered %s.\n", __func__); @@ -3630,6 +3631,11 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, if (rptid_entry->entry_status != 0) return; + id.b.domain = rptid_entry->port_id[2]; + id.b.area = rptid_entry->port_id[1]; + id.b.al_pa = rptid_entry->port_id[0]; + id.b.rsvd_1 = 0; + if (rptid_entry->format == 0) { /* loop */ ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b7, @@ -3641,13 +3647,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, rptid_entry->port_id[2], rptid_entry->port_id[1], rptid_entry->port_id[0]); - vha->d_id.b.domain = rptid_entry->port_id[2]; - vha->d_id.b.area = rptid_entry->port_id[1]; - vha->d_id.b.al_pa = rptid_entry->port_id[0]; - - spin_lock_irqsave(&ha->vport_slock, flags); - qlt_update_vp_map(vha, SET_AL_PA); - spin_unlock_irqrestore(&ha->vport_slock, flags); + qlt_update_host_map(vha, id); } else if (rptid_entry->format == 1) { /* fabric */ @@ -3673,12 +3673,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, WWN_SIZE); } - vha->d_id.b.domain = rptid_entry->port_id[2]; - vha->d_id.b.area = rptid_entry->port_id[1]; - vha->d_id.b.al_pa = rptid_entry->port_id[0]; - spin_lock_irqsave(&ha->vport_slock, flags); - qlt_update_vp_map(vha, SET_AL_PA); - spin_unlock_irqrestore(&ha->vport_slock, flags); + qlt_update_host_map(vha, id); } fc_host_port_name(vha->host) = @@ -3714,12 +3709,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, if (!found) return; - vp->d_id.b.domain = rptid_entry->port_id[2]; - vp->d_id.b.area = rptid_entry->port_id[1]; - vp->d_id.b.al_pa = rptid_entry->port_id[0]; - spin_lock_irqsave(&ha->vport_slock, flags); - qlt_update_vp_map(vp, SET_AL_PA); - spin_unlock_irqrestore(&ha->vport_slock, flags); + qlt_update_host_map(vp, id); /* * Cannot configure here as we are still sitting on the diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 54d4e802bde0..344faf59783d 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -3469,6 +3469,7 @@ qla2x00_remove_one(struct pci_dev *pdev) qla2x00_free_sysfs_attr(base_vha, true); fc_remove_host(base_vha->host); + qlt_remove_target_resources(ha); scsi_remove_host(base_vha->host); diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 38bdcd325fa4..7278e046bf87 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -187,21 +187,23 @@ static inline struct scsi_qla_host *qlt_find_host_by_d_id(struct scsi_qla_host *vha, uint8_t *d_id) { - struct qla_hw_data *ha = vha->hw; - uint8_t vp_idx; - - if ((vha->d_id.b.area != d_id[1]) || (vha->d_id.b.domain != d_id[0])) - return NULL; + struct scsi_qla_host *host; + uint32_t key = 0; - if (vha->d_id.b.al_pa == d_id[2]) + if ((vha->d_id.b.area == d_id[1]) && (vha->d_id.b.domain == d_id[0]) && + (vha->d_id.b.al_pa == d_id[2])) return vha; - BUG_ON(ha->tgt.tgt_vp_map == NULL); - vp_idx = ha->tgt.tgt_vp_map[d_id[2]].idx; - if (likely(test_bit(vp_idx, ha->vp_idx_map))) - return ha->tgt.tgt_vp_map[vp_idx].vha; + key = (uint32_t)d_id[0] << 16; + key |= (uint32_t)d_id[1] << 8; + key |= (uint32_t)d_id[2]; - return NULL; + host = btree_lookup32(&vha->hw->tgt.host_map, key); + if (!host) + ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, + "Unable to find host %06x\n", key); + + return host; } static inline @@ -6040,6 +6042,17 @@ int qlt_remove_target(struct qla_hw_data *ha, struct scsi_qla_host *vha) return 0; } +void qlt_remove_target_resources(struct qla_hw_data *ha) +{ + struct scsi_qla_host *node; + u32 key = 0; + + btree_for_each_safe32(&ha->tgt.host_map, key, node) + btree_remove32(&ha->tgt.host_map, key); + + btree_destroy32(&ha->tgt.host_map); +} + static void qlt_lport_dump(struct scsi_qla_host *vha, u64 wwpn, unsigned char *b) { @@ -6693,6 +6706,8 @@ qlt_modify_vp_config(struct scsi_qla_host *vha, void qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) { + int rc; + if (!QLA_TGT_MODE_ENABLED()) return; @@ -6712,6 +6727,13 @@ qlt_probe_one_stage1(struct scsi_qla_host *base_vha, struct qla_hw_data *ha) qlt_unknown_atio_work_fn); qlt_clear_mode(base_vha); + + rc = btree_init32(&ha->tgt.host_map); + if (rc) + ql_log(ql_log_info, base_vha, 0xffff, + "Unable to initialize ha->host_map btree\n"); + + qlt_update_vp_map(base_vha, SET_VP_IDX); } irqreturn_t @@ -6820,25 +6842,69 @@ qlt_mem_free(struct qla_hw_data *ha) void qlt_update_vp_map(struct scsi_qla_host *vha, int cmd) { + void *slot; + u32 key; + int rc; + if (!QLA_TGT_MODE_ENABLED()) return; + key = vha->d_id.b24; + switch (cmd) { case SET_VP_IDX: vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = vha; break; case SET_AL_PA: - vha->hw->tgt.tgt_vp_map[vha->d_id.b.al_pa].idx = vha->vp_idx; + slot = btree_lookup32(&vha->hw->tgt.host_map, key); + if (!slot) { + ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, + "Save vha in host_map %p %06x\n", vha, key); + rc = btree_insert32(&vha->hw->tgt.host_map, + key, vha, GFP_ATOMIC); + if (rc) + ql_log(ql_log_info, vha, 0xffff, + "Unable to insert s_id into host_map: %06x\n", + key); + return; + } + ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, + "replace existing vha in host_map %p %06x\n", vha, key); + btree_update32(&vha->hw->tgt.host_map, key, vha); break; case RESET_VP_IDX: vha->hw->tgt.tgt_vp_map[vha->vp_idx].vha = NULL; break; case RESET_AL_PA: - vha->hw->tgt.tgt_vp_map[vha->d_id.b.al_pa].idx = 0; + ql_dbg(ql_dbg_tgt_mgt, vha, 0xffff, + "clear vha in host_map %p %06x\n", vha, key); + slot = btree_lookup32(&vha->hw->tgt.host_map, key); + if (slot) + btree_remove32(&vha->hw->tgt.host_map, key); + vha->d_id.b24 = 0; break; } } +void qlt_update_host_map(struct scsi_qla_host *vha, port_id_t id) +{ + unsigned long flags; + struct qla_hw_data *ha = vha->hw; + + if (!vha->d_id.b24) { + spin_lock_irqsave(&ha->vport_slock, flags); + vha->d_id = id; + qlt_update_vp_map(vha, SET_AL_PA); + spin_unlock_irqrestore(&ha->vport_slock, flags); + } else if (vha->d_id.b24 != id.b24) { + spin_lock_irqsave(&ha->vport_slock, flags); + qlt_update_vp_map(vha, RESET_AL_PA); + vha->d_id = id; + qlt_update_vp_map(vha, SET_AL_PA); + spin_unlock_irqrestore(&ha->vport_slock, flags); + } +} + static int __init qlt_parse_ini_mode(void) { if (strcasecmp(qlini_mode, QLA2XXX_INI_MODE_STR_EXCLUSIVE) == 0) -- cgit From ec7193e26055112bc824929fd943035f9a30b06f Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Wed, 15 Mar 2017 09:48:55 -0700 Subject: qla2xxx: Fix delayed response to command for loop mode/direct connect. Current driver wait for FW to be in the ready state before processing in-coming commands. For Arbitrated Loop or Point-to- Point (not switch), FW Ready state can take a while. FW will transition to ready state after all Nports have been logged in. In the mean time, certain initiators have completed the login and starts IO. Driver needs to start processing all queues if FW is already started. Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_def.h | 10 ++++++++-- drivers/scsi/qla2xxx/qla_init.c | 12 ++++++++++++ drivers/scsi/qla2xxx/qla_isr.c | 14 +++++++++++++- drivers/scsi/qla2xxx/qla_mbx.c | 6 +++--- drivers/scsi/qla2xxx/qla_os.c | 21 ++++++++++++++++++++- drivers/scsi/qla2xxx/qla_target.c | 38 +++++++++++++++++++++++++------------- 6 files changed, 81 insertions(+), 20 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 9251918773b1..ae119018dfaa 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3322,6 +3322,10 @@ struct qlt_hw_data { #define LEAK_EXCHG_THRESH_HOLD_PERCENT 75 /* 75 percent */ +#define QLA_EARLY_LINKUP(_ha) \ + ((_ha->flags.n2n_ae || _ha->flags.lip_ae) && \ + _ha->flags.fw_started && !_ha->flags.fw_init_done) + /* * Qlogic host adapter specific data structure. */ @@ -3371,9 +3375,11 @@ struct qla_hw_data { uint32_t fawwpn_enabled:1; uint32_t exlogins_enabled:1; uint32_t exchoffld_enabled:1; - /* 35 bits */ + uint32_t lip_ae:1; + uint32_t n2n_ae:1; uint32_t fw_started:1; + uint32_t fw_init_done:1; } flags; /* This spinlock is used to protect "io transactions", you must @@ -3466,7 +3472,6 @@ struct qla_hw_data { #define P2P_LOOP 3 uint8_t interrupts_on; uint32_t isp_abort_cnt; - #define PCI_DEVICE_ID_QLOGIC_ISP2532 0x2532 #define PCI_DEVICE_ID_QLOGIC_ISP8432 0x8432 #define PCI_DEVICE_ID_QLOGIC_ISP8001 0x8001 @@ -3947,6 +3952,7 @@ typedef struct scsi_qla_host { struct list_head vp_fcports; /* list of fcports */ struct list_head work_list; spinlock_t work_lock; + struct work_struct iocb_work; /* Commonly used flags and state information. */ struct Scsi_Host *host; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index b0f6ad3020d3..f9d2fe7b1ade 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3178,6 +3178,7 @@ next_check: } else { ql_dbg(ql_dbg_init, vha, 0x00d3, "Init Firmware -- success.\n"); + ha->flags.fw_started = 1; } return (rval); @@ -4000,6 +4001,7 @@ qla2x00_configure_loop(scsi_qla_host_t *vha) atomic_set(&vha->loop_state, LOOP_READY); ql_dbg(ql_dbg_disc, vha, 0x2069, "LOOP READY.\n"); + ha->flags.fw_init_done = 1; /* * Process any ATIO queue entries that came in @@ -5491,6 +5493,11 @@ qla2x00_abort_isp_cleanup(scsi_qla_host_t *vha) if (!(IS_P3P_TYPE(ha))) ha->isp_ops->reset_chip(vha); + ha->flags.n2n_ae = 0; + ha->flags.lip_ae = 0; + ha->current_topology = 0; + ha->flags.fw_started = 0; + ha->flags.fw_init_done = 0; ha->chip_reset++; atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME); @@ -6767,6 +6774,8 @@ qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha) return; if (!ha->fw_major_version) return; + if (!ha->flags.fw_started) + return; ret = qla2x00_stop_firmware(vha); for (retries = 5; ret != QLA_SUCCESS && ret != QLA_FUNCTION_TIMEOUT && @@ -6780,6 +6789,9 @@ qla2x00_try_to_stop_firmware(scsi_qla_host_t *vha) "Attempting retry of stop-firmware command.\n"); ret = qla2x00_stop_firmware(vha); } + + ha->flags.fw_started = 0; + ha->flags.fw_init_done = 0; } int diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 3953c8d6af69..3203367a4f42 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -708,6 +708,8 @@ skip_rio: "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx); ha->isp_ops->fw_dump(vha, 1); + ha->flags.fw_init_done = 0; + ha->flags.fw_started = 0; if (IS_FWI2_CAPABLE(ha)) { if (mb[1] == 0 && mb[2] == 0) { @@ -761,6 +763,9 @@ skip_rio: break; case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */ + ha->flags.lip_ae = 1; + ha->flags.n2n_ae = 0; + ql_dbg(ql_dbg_async, vha, 0x5009, "LIP occurred (%x).\n", mb[1]); @@ -797,6 +802,10 @@ skip_rio: break; case MBA_LOOP_DOWN: /* Loop Down Event */ + ha->flags.n2n_ae = 0; + ha->flags.lip_ae = 0; + ha->current_topology = 0; + mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha)) ? RD_REG_WORD(®24->mailbox4) : 0; mbx = (IS_P3P_TYPE(ha)) ? RD_REG_WORD(®82->mailbox_out[4]) @@ -866,6 +875,9 @@ skip_rio: /* case MBA_DCBX_COMPLETE: */ case MBA_POINT_TO_POINT: /* Point-to-Point */ + ha->flags.lip_ae = 0; + ha->flags.n2n_ae = 1; + if (IS_QLA2100(ha)) break; @@ -2706,7 +2718,7 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha, struct sts_entry_24xx *pkt; struct qla_hw_data *ha = vha->hw; - if (!vha->flags.online) + if (!ha->flags.fw_started) return; while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 53d9579acc74..a113ab3592a7 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -3638,11 +3638,11 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, if (rptid_entry->format == 0) { /* loop */ - ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b7, + ql_dbg(ql_dbg_async, vha, 0x10b7, "Format 0 : Number of VPs setup %d, number of " "VPs acquired %d.\n", rptid_entry->vp_setup, rptid_entry->vp_acquired); - ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b8, + ql_dbg(ql_dbg_async, vha, 0x10b8, "Primary port id %02x%02x%02x.\n", rptid_entry->port_id[2], rptid_entry->port_id[1], rptid_entry->port_id[0]); @@ -3651,7 +3651,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, } else if (rptid_entry->format == 1) { /* fabric */ - ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x10b9, + ql_dbg(ql_dbg_async, vha, 0x10b9, "Format 1: VP[%d] enabled - status %d - with " "port id %02x%02x%02x.\n", rptid_entry->vp_idx, rptid_entry->vp_status, diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 344faf59783d..41d5b09f7326 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -2560,6 +2560,20 @@ qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time) return atomic_read(&vha->loop_state) == LOOP_READY; } +static void qla2x00_iocb_work_fn(struct work_struct *work) +{ + struct scsi_qla_host *vha = container_of(work, + struct scsi_qla_host, iocb_work); + int cnt = 0; + + while (!list_empty(&vha->work_list)) { + qla2x00_do_work(vha); + cnt++; + if (cnt > 10) + break; + } +} + /* * PCI driver interface */ @@ -3078,6 +3092,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) */ qla2xxx_wake_dpc(base_vha); + INIT_WORK(&base_vha->iocb_work, qla2x00_iocb_work_fn); INIT_WORK(&ha->board_disable, qla2x00_disable_board_on_pci_error); if (IS_QLA8031(ha) || IS_MCTP_CAPABLE(ha)) { @@ -4321,7 +4336,11 @@ qla2x00_post_work(struct scsi_qla_host *vha, struct qla_work_evt *e) spin_lock_irqsave(&vha->work_lock, flags); list_add_tail(&e->list, &vha->work_list); spin_unlock_irqrestore(&vha->work_lock, flags); - qla2xxx_wake_dpc(vha); + + if (QLA_EARLY_LINKUP(vha->hw)) + schedule_work(&vha->iocb_work); + else + qla2xxx_wake_dpc(vha); return QLA_SUCCESS; } diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 7278e046bf87..0e03ca2ab3e5 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -638,6 +638,7 @@ int qla24xx_async_notify_ack(scsi_qla_host_t *vha, fc_port_t *fcport, break; case SRB_NACK_PRLI: fcport->fw_login_state = DSC_LS_PRLI_PEND; + fcport->deleted = 0; c = "PRLI"; break; case SRB_NACK_LOGO: @@ -1576,6 +1577,9 @@ static void qlt_send_notify_ack(struct scsi_qla_host *vha, request_t *pkt; struct nack_to_isp *nack; + if (!ha->flags.fw_started) + return; + ql_dbg(ql_dbg_tgt, vha, 0xe004, "Sending NOTIFY_ACK (ha=%p)\n", ha); /* Send marker if required */ @@ -3053,7 +3057,7 @@ int qlt_xmit_response(struct qla_tgt_cmd *cmd, int xmit_type, else vha->tgt_counters.core_qla_que_buf++; - if (!vha->flags.online || cmd->reset_count != ha->chip_reset) { + if (!ha->flags.fw_started || cmd->reset_count != ha->chip_reset) { /* * Either the port is not online or this request was from * previous life, just abort the processing. @@ -3194,7 +3198,7 @@ int qlt_rdy_to_xfer(struct qla_tgt_cmd *cmd) spin_lock_irqsave(&ha->hardware_lock, flags); - if (!vha->flags.online || (cmd->reset_count != ha->chip_reset) || + if (!ha->flags.fw_started || (cmd->reset_count != ha->chip_reset) || (cmd->sess && cmd->sess->deleted)) { /* * Either the port is not online or this request was from @@ -3372,7 +3376,7 @@ static int __qlt_send_term_imm_notif(struct scsi_qla_host *vha, ql_dbg(ql_dbg_tgt_tmr, vha, 0xe01c, "Sending TERM ELS CTIO (ha=%p)\n", ha); - pkt = (request_t *)qla2x00_alloc_iocbs_ready(vha, NULL); + pkt = (request_t *)qla2x00_alloc_iocbs(vha, NULL); if (pkt == NULL) { ql_dbg(ql_dbg_tgt, vha, 0xe080, "qla_target(%d): %s failed: unable to allocate " @@ -4697,7 +4701,8 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, } if (sess != NULL) { - if (sess->fw_login_state == DSC_LS_PLOGI_PEND) { + if (sess->fw_login_state != DSC_LS_PLOGI_PEND && + sess->fw_login_state != DSC_LS_PLOGI_COMP) { /* * Impatient initiator sent PRLI before last * PLOGI could finish. Will force him to re-try, @@ -4736,15 +4741,23 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, /* Make session global (not used in fabric mode) */ if (ha->current_topology != ISP_CFG_F) { - set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); - set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); - qla2xxx_wake_dpc(vha); + if (sess) { + ql_dbg(ql_dbg_disc, vha, 0xffff, + "%s %d %8phC post nack\n", + __func__, __LINE__, sess->port_name); + qla24xx_post_nack_work(vha, sess, iocb, + SRB_NACK_PRLI); + res = 0; + } else { + set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags); + set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags); + qla2xxx_wake_dpc(vha); + } } else { if (sess) { ql_dbg(ql_dbg_disc, vha, 0xffff, - "%s %d %8phC post nack\n", - __func__, __LINE__, sess->port_name); - + "%s %d %8phC post nack\n", + __func__, __LINE__, sess->port_name); qla24xx_post_nack_work(vha, sess, iocb, SRB_NACK_PRLI); res = 0; @@ -4752,7 +4765,6 @@ static int qlt_24xx_handle_els(struct scsi_qla_host *vha, } break; - case ELS_TPRLO: if (le16_to_cpu(iocb->u.isp24.flags) & NOTIFY24XX_FLAGS_GLOBAL_TPRLO) { @@ -5222,7 +5234,7 @@ static void qlt_24xx_atio_pkt(struct scsi_qla_host *vha, unsigned long flags; if (unlikely(tgt == NULL)) { - ql_dbg(ql_dbg_io, vha, 0x3064, + ql_dbg(ql_dbg_tgt, vha, 0x3064, "ATIO pkt, but no tgt (ha %p)", ha); return; } @@ -6359,7 +6371,7 @@ qlt_24xx_process_atio_queue(struct scsi_qla_host *vha, uint8_t ha_locked) struct atio_from_isp *pkt; int cnt, i; - if (!vha->flags.online) + if (!ha->flags.fw_started) return; while ((ha->tgt.atio_ring_ptr->signature != ATIO_PROCESSED) || -- cgit From 6c611d18f386d37cce3afbd921568e2a895bd86e Mon Sep 17 00:00:00 2001 From: Himanshu Madhani Date: Wed, 15 Mar 2017 09:48:56 -0700 Subject: qla2xxx: Update driver version to 9.00.00.00-k Signed-off-by: Himanshu Madhani signed-off-by: Giridhar Malavali Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_version.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'drivers') diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 3cb1964b7786..45bc84e8e3bf 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "8.07.00.38-k" +#define QLA2XXX_VERSION "9.00.00.00-k" -#define QLA_DRIVER_MAJOR_VER 8 -#define QLA_DRIVER_MINOR_VER 7 +#define QLA_DRIVER_MAJOR_VER 9 +#define QLA_DRIVER_MINOR_VER 0 #define QLA_DRIVER_PATCH_VER 0 #define QLA_DRIVER_BETA_VER 0 -- cgit