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Some opcodes are used in hardware internally, and driver does not care
about them. So, we change them to reserved opcodes in driver.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220909093822.33868-4-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Many of erdma's includes are redundant, because they are already included
indirectly by kernel headers or custom headers. So we remove all the
unnecessary direct-includes. Besides, add linux/pci.h to erdma.h because
it's also used in the file.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220909093822.33868-3-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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erdma_post_cmd_wait does not use the 'u64 *req' input parameter directly.
So it is better to define it to 'void *req', and by this we can eliminate
the casting when calling erdma_post_cmd_wait.
Signed-off-by: Cheng Xu <chengyou@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220909093822.33868-2-chengyou@linux.alibaba.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Fix the code for converting a SCSI command pointer into an SRP request
pointer.
Cc: Xiao Yang <yangx.jy@fujitsu.com>
Fixes: ad215aaea4f9 ("RDMA/srp: Make struct scsi_cmnd and struct srp_request adjacent")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20220908233139.3042628-1-bvanassche@acm.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Delete the redundant word 'to'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220908132036.42355-1-wangjianli@cdjrlc.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Delete the redundant word 'to'.
Signed-off-by: wangjianli <wangjianli@cdjrlc.com>
Link: https://lore.kernel.org/r/20220908131824.41106-1-wangjianli@cdjrlc.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Currently ib_copy_from_udata and ib_copy_to_udata could underfill
the request and response buffer if the user-space passes an undersized
value for udata->inlen or udata->outlen respectively [1]
This could lead to undesirable behavior.
Zero initing the buffer only goes as far as preventing using the buffer
uninitialized.
Validate udata->inlen and udata->outlen passed from user-space to ensure
they are at least the required minimum size.
[1] https://lore.kernel.org/linux-rdma/MWHPR11MB0029F37D40D9D4A993F8F549E9D79@MWHPR11MB0029.namprd11.prod.outlook.com/
Fixes: b48c24c2d710 ("RDMA/irdma: Implement device supported verb APIs")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20220907191324.1173-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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A number of asynchronous event (AE) ids were not aligned to the
correct flush_code and event_type. Fix these up so that the
correct IBV error and event codes are returned to application.
Also, add handling for new AE ids like IRDMA_AE_INVALID_REQUEST to
return the correct WC error code.
Fixes: 44d9e52977a1 ("RDMA/irdma: Implement device initialization definitions")
Signed-off-by: Sindhu-Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20220907191324.1173-2-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The same value is assigned to 'mr->ibmr.length'. Remove redundant one.
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Link: https://lore.kernel.org/r/20220908083058.3993700-1-matsuda-daisuke@fujitsu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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They could be triggered by user APIs with invalid parameters.
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://lore.kernel.org/r/1662518901-2-2-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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struct ib_qp_cap {
u32 max_send_wr;
u32 max_recv_wr;
u32 max_send_sge;
u32 max_recv_sge;
u32 max_inline_data;
...
To avoid getting a negative value from dmesg:
[410580.579965] rdma_rxe: invalid send sge = 65535 > 32
[410580.583818] rdma_rxe: invalid send wr = -1 > 1048576
[410582.771323] rdma_rxe: invalid recv sge = 65535 > 32
[410582.775310] rdma_rxe: invalid recv wr = -1 > 1048576
Signed-off-by: Li Zhijian <lizhijian@fujitsu.com>
Link: https://lore.kernel.org/r/1662518901-2-1-git-send-email-lizhijian@fujitsu.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Let's call try_cmpxchg directly for the same purpose.
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20220903040252.29397-1-guoqing.jiang@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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No need to iterate all paths after find one connected path.
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20220902101922.26273-3-guoqing.jiang@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The maximum queue_depth should be 65535 per check_module_params,
also update other relevant comments.
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Link: https://lore.kernel.org/r/20220902101922.26273-2-guoqing.jiang@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Return the value set_link_state() directly instead of storing it in
another redundant variable.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Link: https://lore.kernel.org/r/20220901074209.313004-1-ye.xingchen@zte.com.cn
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Perform merge of Mellanox shared branch.
* mlx5-next:
RDMA/mlx5: Move function mlx5_core_query_ib_ppcnt() to mlx5_ib
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Query eswitch functions returns information of the external host
PF(if it exists). It can be used to check if DEVX is running on ECPF.
Reviewed-by: Erez Shitrit <erezsh@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Link: https://lore.kernel.org/r/4265925178ab3224dc1d3e3784bb312d808edca5.1661763785.git.leonro@nvidia.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The SoftiWARP Kconfig is missing "select" for CRYPTO and CRYPTO_CRC32C.
In addition, it improperly "depends on" LIBCRC32C, this should be a
"select", similar to net/sctp and others. As a dependency, SIW fails
to appear in generic configurations.
Link: https://lore.kernel.org/r/d366bf02-3271-754f-fc68-1a84016d0e19@talpey.com
Signed-off-by: Tom Talpey <tom@talpey.com>
Acked-by: Bernard Metzler <bmt@zurich.ibm.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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An incoming Read request causes multiple Read responses. If a user MR to
copy data from is unavailable or responder cannot send a reply, then the
error messages can be printed for each response attempt, resulting in
message overflow.
Link: https://lore.kernel.org/r/20220829071218.1639065-1-matsuda-daisuke@fujitsu.com
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The member variable obj in struct rxe_task is not needed.
So remove it to save memory.
Link: https://lore.kernel.org/r/20220822011615.805603-4-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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When sock_create_kern in the function rxe_qp_init_req fails,
qp->sk is set to NULL.
Then the function rxe_create_qp will call rxe_qp_do_cleanup
to handle allocated resource.
Before handling qp->sk, this variable should be checked.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20220822011615.805603-3-yanjun.zhu@linux.dev
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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When rxe_queue_init in the function rxe_qp_init_req fails,
both qp->req.task.func and qp->req.task.arg are not initialized.
Because of creation of qp fails, the function rxe_create_qp will
call rxe_qp_do_cleanup to handle allocated resource.
Before calling __rxe_do_task, both qp->req.task.func and
qp->req.task.arg should be checked.
Fixes: 8700e3e7c485 ("Soft RoCE driver")
Link: https://lore.kernel.org/r/20220822011615.805603-2-yanjun.zhu@linux.dev
Reported-by: syzbot+ab99dc4c6e961eed8b8e@syzkaller.appspotmail.com
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The value of doorbell_qpn is always equal to qpn on current hardware
versions. So remove it.
Link: https://lore.kernel.org/r/20220829105021.1427804-5-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Move the device and service_id match code at the top of
cm_insert_listen() and cm_find_listen() into the final else branch.
Link: https://lore.kernel.org/r/20220819090859.957943-4-markzhang@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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cm_init_listen()
The service_mask is always ~cpu_to_be64(0), so the result is always
a NOP when it is &'d with a service_id. Remove it for simplicity.
Link: https://lore.kernel.org/r/20220819090859.957943-3-markzhang@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Remove the service_mask parameter of ib_cm_listen(), as all callers
use 0.
Link: https://lore.kernel.org/r/20220819090859.957943-2-markzhang@nvidia.com
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Since process_{read,write} already prints direction info if ctx->ops.rdma_ev
fails, no need to pass 'dir'.
Link: https://lore.kernel.org/r/20220826081117.21687-1-guoqing.jiang@linux.dev
Signed-off-by: Guoqing Jiang <guoqing.jiang@linux.dev>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Commit 1e75550648da ("Revert "RDMA/rxe: Create duplicate mapping tables for
FMRs"") brought back the member 'va' to struct rxe_mr. However, it is
actually used by nobody and thus can be removed.
Fixes: 1e75550648da ("Revert "RDMA/rxe: Create duplicate mapping tables for FMRs"")
Link: https://lore.kernel.org/r/20220829012335.1212697-1-matsuda-daisuke@fujitsu.com
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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'device' argument is never used since rdma_build_skb()
is introduced, so remove it.
Link: https://lore.kernel.org/r/20220826143215.18111-1-linyunsheng@huawei.com
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Simplify the SRP driver by using the attribute group mechanism instead
of calling device_create_file() explicitly.
Link: https://lore.kernel.org/r/20220825213900.864587-5-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Instead of ignoring dev_set_name() failure, handle dev_set_name()
failure. Convert a device_register() call into device_initialize() and
device_add() calls.
Link: https://lore.kernel.org/r/20220825213900.864587-4-bvanassche@acm.org
Reported-by: Bo Liu <liubo03@inspur.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Move the kfree(host) calls into srp_release_dev(). Convert a
device_unregister() call into a device_del() and a device_put() call.
Remove the host->released completion object. This patch prepares for
handling dev_set_name() failure in srp_add_port().
Link: https://lore.kernel.org/r/20220825213900.864587-3-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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device_register() always calls device_initialize() so calling device_del()
is safe even if device_register() fails. Implement the following advice
from the comment block above device_register(): "NOTE: _Never_ directly free
@dev after calling this function, even if it returned an error! Always use
put_device() to give up the reference initialized in this function instead."
Keep the kfree() call in the error path since srp_release_dev() does not
free the host.
Link: https://lore.kernel.org/r/20220825213900.864587-2-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The MR raw restrack attributes come from the queue context maintained by
the ROCEE.
For example:
$ rdma res show mr dev hns_0 mrn 6 -dd -jp -r
[ {
"ifindex": 4,
"ifname": "hns_0",
"data": [ 1,0,0,0,2,0,0,0,0,3,0,0,0,0,2,0,0,0,0,0,32,0,0,0,2,0,0,0,
2,0,0,0,0,0,0,0 ]
} ]
Link: https://lore.kernel.org/r/20220822104455.2311053-8-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The MR restrack attributes come from the queue information maintained by
the driver.
For example:
$ rdma res show mr dev hns_0 mrn 6 -dd -jp
[ {
"ifindex": 4,
"ifname": "hns_0",
"mrn": 6,
"rkey": "300",
"lkey": "300",
"mrlen": 131072,
"pdn": 8,
"pid": 1524,
"comm": "ib_send_bw"
},
"drv_pbl_hop_num": 2,
"drv_ba_pg_shift": 14,
"drv_buf_pg_shift": 12
}
Link: https://lore.kernel.org/r/20220822104455.2311053-7-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The QP raw restrack attributes come from the queue context maintained by
the ROCEE.
For example:
$ rdma res show qp link hns_0 -jp -dd -r
[ {
"ifindex": 4,
"ifname": "hns_0",
"data": [ 2,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,
5,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,255,156,0,0,63,156,0,0,
7,0,0,0,1,0,0,0,9,0,0,0,0,0,0,0,2,0,0,0,2,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,63,156,0,
0,0,0,0,0 ]
} ]
Link: https://lore.kernel.org/r/20220822104455.2311053-6-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The QP restrack attributes come from the queue information maintained by
the driver.
For example:
$ rdma res show qp link hns_0 lqpn 41 -jp -dd
[ {
"ifindex": 4,
"ifname": "hns_0",
"port": 1,
"lqpn": 41,
"rqpn": 40,
"type": "RC",
"state": "RTR",
"rq-psn": 12474738,
"sq-psn": 0,
"path-mig-state": "ARMED",
"pdn": 9,
"pid": 1523,
"comm": "ib_send_bw"
},
"drv_sq_wqe_cnt": 128,
"drv_sq_max_gs": 1,
"drv_rq_wqe_cnt": 512,
"drv_rq_max_gs": 2,
"drv_ext_sge_sge_cnt": 0
}
Link: https://lore.kernel.org/r/20220822104455.2311053-5-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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The CQ raw restrack attributes come from the queue context maintained by
the ROCEE.
For example:
$ rdma res show cq dev hns_0 cqn 14 -dd -jp -r
[ {
"ifindex": 4,
"ifname": "hns_0",
"data": [ 1,0,0,0,7,0,0,0,0,0,0,0,0,82,6,0,0,82,6,0,0,82,6,0,
1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,0,0,0,
6,0,0,0,0,0,0,0 ]
} ]
Link: https://lore.kernel.org/r/20220822104455.2311053-4-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Remove the resttrack attributes from the queue context held by ROCEE, and
add the resttrack attributes from the queue information maintained by the
driver.
For example:
$ rdma res show cq dev hns_0 cqn 14 -dd -jp
[ {
"ifindex": 4,
"ifname": "hns_0",
"cqn": 14,
"cqe": 127,
"users": 1,
"adaptive-moderation": false,
"ctxn": 8,
"pid": 1524,
"comm": "ib_send_bw"
},
"drv_cq_depth": 128,
"drv_cons_index": 0,
"drv_cqe_size": 32,
"drv_arm_sn": 1
}
Link: https://lore.kernel.org/r/20220822104455.2311053-3-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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There is no need to use a dedicated DXF file and DFX structure to manage
the interface of the query queue context.
Link: https://lore.kernel.org/r/20220822104455.2311053-2-liangwenpeng@huawei.com
Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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rdma/ib_umem.h and rdma/ib_verbs.h are included by rdma/ib_umem_odp.h.
This patch removes the redundant entries.
Link: https://lore.kernel.org/r/20220823025131.862811-1-matsuda-daisuke@fujitsu.com
Signed-off-by: Daisuke Matsuda <matsuda-daisuke@fujitsu.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Link: https://lore.kernel.org/r/20220818210018.6841-1-wsa+renesas@sang-engineering.com
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Add a parameter for create CQ admin command to set source address on
receive completion descriptors. Report capability for this feature
through query device verb.
Link: https://lore.kernel.org/r/20220818140449.414-1-mrgolin@amazon.com
Reviewed-by: Firas Jahjah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Daniel Kranzdorf <dkkranzd@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Output the sg index, so it's a bit easier for debug.
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Aleksei Marov <aleksei.marov@ionos.com>
Link: https://lore.kernel.org/r/20220818105355.110344-2-haris.iqbal@ionos.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Add event tracing mechanism for following routines:
- send_io_resp_imm()
How to use:
1. Load the rtrs_server module
2. cd /sys/kernel/debug/tracing
3. If all the events need to be enabled:
echo 1 > events/rtrs_srv/enable
4. OR only speific routine/event needs to be enabled e.g.
echo 1 > events/rtrs_srv/send_io_resp_imm/enable
5. cat trace
6. Run some I/O workload which can trigger send_io_resp_imm()
Link: https://lore.kernel.org/r/20220818105240.110234-3-haris.iqbal@ionos.com
Signed-off-by: Santosh Pradhan <santosh.pradhan@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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Add event tracing mechanism for following routines:
- rtrs_clt_reconnect_work()
- rtrs_clt_close_conns()
- rtrs_rdma_error_recovery()
How to use:
1. Load the rtrs_client module
2. cd /sys/kernel/debug/tracing
3. If all the events need to be enabled:
echo 1 > events/rtrs_clt/enable
4. OR only speific routine/event needs to be enabled e.g.
echo 1 > events/rtrs_clt/rtrs_clt_close_conns/enable
5. cat trace
6. Run some workload which can trigger rtrs_clt_close_conns()
Link: https://lore.kernel.org/r/20220818105240.110234-2-haris.iqbal@ionos.com
Signed-off-by: Santosh Pradhan <santosh.pradhan@ionos.com>
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Signed-off-by: Md Haris Iqbal <haris.iqbal@ionos.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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According to the ib spec:
If the CI supports the Base Memory Management Extensions defined in this
specification, the L_Key format must consist of:
24 bit index in the most significant bits of the R_Key, and
8 bit key in the least significant bits of the R_Key
Through a successful Allocate L_Key verb invocation, the CI must let the
consumer own the key portion of the returned R_Key
Therefore, when creating a mkey using DEVX, the consumer is allowed to
change the key part. The kernel should compare only the index part of a
R_Key to determine equality with another R_Key.
Adding capability in order not to break backward compatibility.
Fixes: 534fd7aac56a ("IB/mlx5: Manage indirection mkey upon DEVX flow for ODP")
Link: https://lore.kernel.org/r/3d669aacea85a3a15c3b3b953b3eaba3f80ef9be.1659255945.git.leonro@nvidia.com
Signed-off-by: Aharon Landau <aharonl@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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This new function is defined only on ARM and serves to guarantee a barrier
in the WC operation. The barrier means that another run of this loop will
not combine with the stores this loop created.
On x86 this is happening implicitly because of the spin_unlock().
Link: https://lore.kernel.org/r/0-v1-c5dade92f363+11-mlx5_io_stop_wc_jgg@nvidia.com
Suggested-by: Pavel Shamis <Pavel.Shamis@arm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux
Saeed Mahameed says:
====================
updates from mlx5-next 2022-09-24
Updates form mlx5-next including[1]:
1) HW definitions and support for NPPS clock settings.
2) various cleanups
3) Enable hash mode by default for all NICs
4) page tracker and advanced virtualization HW definitions for vfio
[1] https://lore.kernel.org/netdev/20220907233636.388475-1-saeed@kernel.org/
* 'mlx5-next' of git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux:
net/mlx5: Remove from FPGA IFC file not-needed definitions
net/mlx5: Remove unused structs
net/mlx5: Remove unused functions
net/mlx5: detect and enable bypass port select flow table
net/mlx5: Lag, enable hash mode by default for all NICs
net/mlx5: Lag, set active ports if support bypass port select flow table
RDMA/mlx5: Don't set tx affinity when lag is in hash mode
net/mlx5: add IFC bits for bypassing port select flow table
net/mlx5: Add support for NPPS with real time mode
net/mlx5: Expose NPPS related registers
net/mlx5: Query ADV_VIRTUALIZATION capabilities
net/mlx5: Introduce ifc bits for page tracker
RDMA/mlx5: Move function mlx5_core_query_ib_ppcnt() to mlx5_ib
====================
Link: https://lore.kernel.org/all/20220927201906.234015-1-saeed@kernel.org/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In hash mode, without setting tx affinity explicitly, the port select
flow table decides which port is used for the traffic.
If port_select_flow_table_bypass capability is supported and tx affinity
is set explicitly for QP/TIS, they will be added into the explicit affinity
table in FW to check which port is used for the traffic.
1. The overloaded explicit affinity table may affect performance.
To avoid this, do not set tx affinity explicitly by default.
2. The packets of the same flow need to be transmitted on the same port.
Because the packets of the same flow use different QPs in slow & fast
path, it shouldn't set tx affinity explicitly for these QPs.
Signed-off-by: Liu, Changcheng <jerrliu@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Vlad Buslov <vladbu@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
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