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authorLinus Torvalds <torvalds@linux-foundation.org>2021-06-30 15:51:09 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-06-30 15:51:09 -0700
commitdbe69e43372212527abf48609aba7fc39a6daa27 (patch)
tree96cfafdf70f5325ceeac1054daf7deca339c9730 /drivers/net/wan/hdlc_cisco.c
parenta6eaf3850cb171c328a8b0db6d3c79286a1eba9d (diff)
parentb6df00789e2831fff7a2c65aa7164b2a4dcbe599 (diff)
downloadlinux-dbe69e43372212527abf48609aba7fc39a6daa27.tar.gz
Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski: "Core: - BPF: - add syscall program type and libbpf support for generating instructions and bindings for in-kernel BPF loaders (BPF loaders for BPF), this is a stepping stone for signed BPF programs - infrastructure to migrate TCP child sockets from one listener to another in the same reuseport group/map to improve flexibility of service hand-off/restart - add broadcast support to XDP redirect - allow bypass of the lockless qdisc to improving performance (for pktgen: +23% with one thread, +44% with 2 threads) - add a simpler version of "DO_ONCE()" which does not require jump labels, intended for slow-path usage - virtio/vsock: introduce SOCK_SEQPACKET support - add getsocketopt to retrieve netns cookie - ip: treat lowest address of a IPv4 subnet as ordinary unicast address allowing reclaiming of precious IPv4 addresses - ipv6: use prandom_u32() for ID generation - ip: add support for more flexible field selection for hashing across multi-path routes (w/ offload to mlxsw) - icmp: add support for extended RFC 8335 PROBE (ping) - seg6: add support for SRv6 End.DT46 behavior - mptcp: - DSS checksum support (RFC 8684) to detect middlebox meddling - support Connection-time 'C' flag - time stamping support - sctp: packetization Layer Path MTU Discovery (RFC 8899) - xfrm: speed up state addition with seq set - WiFi: - hidden AP discovery on 6 GHz and other HE 6 GHz improvements - aggregation handling improvements for some drivers - minstrel improvements for no-ack frames - deferred rate control for TXQs to improve reaction times - switch from round robin to virtual time-based airtime scheduler - add trace points: - tcp checksum errors - openvswitch - action execution, upcalls - socket errors via sk_error_report Device APIs: - devlink: add rate API for hierarchical control of max egress rate of virtual devices (VFs, SFs etc.) - don't require RCU read lock to be held around BPF hooks in NAPI context - page_pool: generic buffer recycling New hardware/drivers: - mobile: - iosm: PCIe Driver for Intel M.2 Modem - support for Qualcomm MSM8998 (ipa) - WiFi: Qualcomm QCN9074 and WCN6855 PCI devices - sparx5: Microchip SparX-5 family of Enterprise Ethernet switches - Mellanox BlueField Gigabit Ethernet (control NIC of the DPU) - NXP SJA1110 Automotive Ethernet 10-port switch - Qualcomm QCA8327 switch support (qca8k) - Mikrotik 10/25G NIC (atl1c) Driver changes: - ACPI support for some MDIO, MAC and PHY devices from Marvell and NXP (our first foray into MAC/PHY description via ACPI) - HW timestamping (PTP) support: bnxt_en, ice, sja1105, hns3, tja11xx - Mellanox/Nvidia NIC (mlx5) - NIC VF offload of L2 bridging - support IRQ distribution to Sub-functions - Marvell (prestera): - add flower and match all - devlink trap - link aggregation - Netronome (nfp): connection tracking offload - Intel 1GE (igc): add AF_XDP support - Marvell DPU (octeontx2): ingress ratelimit offload - Google vNIC (gve): new ring/descriptor format support - Qualcomm mobile (rmnet & ipa): inline checksum offload support - MediaTek WiFi (mt76) - mt7915 MSI support - mt7915 Tx status reporting - mt7915 thermal sensors support - mt7921 decapsulation offload - mt7921 enable runtime pm and deep sleep - Realtek WiFi (rtw88) - beacon filter support - Tx antenna path diversity support - firmware crash information via devcoredump - Qualcomm WiFi (wcn36xx) - Wake-on-WLAN support with magic packets and GTK rekeying - Micrel PHY (ksz886x/ksz8081): add cable test support" * tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2168 commits) tcp: change ICSK_CA_PRIV_SIZE definition tcp_yeah: check struct yeah size at compile time gve: DQO: Fix off by one in gve_rx_dqo() stmmac: intel: set PCI_D3hot in suspend stmmac: intel: Enable PHY WOL option in EHL net: stmmac: option to enable PHY WOL with PMT enabled net: say "local" instead of "static" addresses in ndo_dflt_fdb_{add,del} net: use netdev_info in ndo_dflt_fdb_{add,del} ptp: Set lookup cookie when creating a PTP PPS source. net: sock: add trace for socket errors net: sock: introduce sk_error_report net: dsa: replay the local bridge FDB entries pointing to the bridge dev too net: dsa: ensure during dsa_fdb_offload_notify that dev_hold and dev_put are on the same dev net: dsa: include fdb entries pointing to bridge in the host fdb list net: dsa: include bridge addresses which are local in the host fdb list net: dsa: sync static FDB entries on foreign interfaces to hardware net: dsa: install the host MDB and FDB entries in the master's RX filter net: dsa: reference count the FDB addresses at the cross-chip notifier level net: dsa: introduce a separate cross-chip notifier type for host FDBs net: dsa: reference count the MDB entries at the cross-chip notifier level ...
Diffstat (limited to 'drivers/net/wan/hdlc_cisco.c')
-rw-r--r--drivers/net/wan/hdlc_cisco.c49
1 files changed, 14 insertions, 35 deletions
diff --git a/drivers/net/wan/hdlc_cisco.c b/drivers/net/wan/hdlc_cisco.c
index cb5898f7d68c..349ca18088e8 100644
--- a/drivers/net/wan/hdlc_cisco.c
+++ b/drivers/net/wan/hdlc_cisco.c
@@ -28,13 +28,11 @@
#define CISCO_ADDR_REPLY 1 /* Cisco address reply */
#define CISCO_KEEPALIVE_REQ 2 /* Cisco keepalive request */
-
struct hdlc_header {
u8 address;
u8 control;
__be16 protocol;
-}__packed;
-
+} __packed;
struct cisco_packet {
__be32 type; /* code */
@@ -42,11 +40,10 @@ struct cisco_packet {
__be32 par2;
__be16 rel; /* reliability */
__be32 time;
-}__packed;
+} __packed;
#define CISCO_PACKET_LEN 18
#define CISCO_BIG_PACKET_LEN 20
-
struct cisco_state {
cisco_proto settings;
@@ -59,16 +56,13 @@ struct cisco_state {
u32 rxseq; /* RX sequence number */
};
-
static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr);
-
-static inline struct cisco_state* state(hdlc_device *hdlc)
+static inline struct cisco_state *state(hdlc_device *hdlc)
{
return (struct cisco_state *)hdlc->state;
}
-
static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
u16 type, const void *daddr, const void *saddr,
unsigned int len)
@@ -79,7 +73,7 @@ static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
#endif
skb_push(skb, sizeof(struct hdlc_header));
- data = (struct hdlc_header*)skb->data;
+ data = (struct hdlc_header *)skb->data;
if (type == CISCO_KEEPALIVE)
data->address = CISCO_MULTICAST;
else
@@ -90,8 +84,6 @@ static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
return sizeof(struct hdlc_header);
}
-
-
static void cisco_keepalive_send(struct net_device *dev, u32 type,
__be32 par1, __be32 par2)
{
@@ -100,13 +92,12 @@ static void cisco_keepalive_send(struct net_device *dev, u32 type,
skb = dev_alloc_skb(sizeof(struct hdlc_header) +
sizeof(struct cisco_packet));
- if (!skb) {
- netdev_warn(dev, "Memory squeeze on %s()\n", __func__);
+ if (!skb)
return;
- }
+
skb_reserve(skb, 4);
cisco_hard_header(skb, dev, CISCO_KEEPALIVE, NULL, NULL, 0);
- data = (struct cisco_packet*)(skb->data + 4);
+ data = (struct cisco_packet *)(skb->data + 4);
data->type = htonl(type);
data->par1 = par1;
@@ -124,11 +115,9 @@ static void cisco_keepalive_send(struct net_device *dev, u32 type,
dev_queue_xmit(skb);
}
-
-
static __be16 cisco_type_trans(struct sk_buff *skb, struct net_device *dev)
{
- struct hdlc_header *data = (struct hdlc_header*)skb->data;
+ struct hdlc_header *data = (struct hdlc_header *)skb->data;
if (skb->len < sizeof(struct hdlc_header))
return cpu_to_be16(ETH_P_HDLC);
@@ -148,13 +137,12 @@ static __be16 cisco_type_trans(struct sk_buff *skb, struct net_device *dev)
}
}
-
static int cisco_rx(struct sk_buff *skb)
{
struct net_device *dev = skb->dev;
hdlc_device *hdlc = dev_to_hdlc(dev);
struct cisco_state *st = state(hdlc);
- struct hdlc_header *data = (struct hdlc_header*)skb->data;
+ struct hdlc_header *data = (struct hdlc_header *)skb->data;
struct cisco_packet *cisco_data;
struct in_device *in_dev;
__be32 addr, mask;
@@ -183,10 +171,10 @@ static int cisco_rx(struct sk_buff *skb)
goto rx_error;
}
- cisco_data = (struct cisco_packet*)(skb->data + sizeof
+ cisco_data = (struct cisco_packet *)(skb->data + sizeof
(struct hdlc_header));
- switch (ntohl (cisco_data->type)) {
+ switch (ntohl(cisco_data->type)) {
case CISCO_ADDR_REQ: /* Stolen from syncppp.c :-) */
rcu_read_lock();
in_dev = __in_dev_get_rcu(dev);
@@ -226,6 +214,7 @@ static int cisco_rx(struct sk_buff *skb)
st->last_poll = jiffies;
if (!st->up) {
u32 sec, min, hrs, days;
+
sec = ntohl(cisco_data->time) / 1000;
min = sec / 60; sec -= min * 60;
hrs = min / 60; min -= hrs * 60;
@@ -253,8 +242,6 @@ rx_error:
return NET_RX_DROP;
}
-
-
static void cisco_timer(struct timer_list *t)
{
struct cisco_state *st = from_timer(st, t, timer);
@@ -276,8 +263,6 @@ static void cisco_timer(struct timer_list *t)
add_timer(&st->timer);
}
-
-
static void cisco_start(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
@@ -294,8 +279,6 @@ static void cisco_start(struct net_device *dev)
add_timer(&st->timer);
}
-
-
static void cisco_stop(struct net_device *dev)
{
hdlc_device *hdlc = dev_to_hdlc(dev);
@@ -310,7 +293,6 @@ static void cisco_stop(struct net_device *dev)
spin_unlock_irqrestore(&st->lock, flags);
}
-
static struct hdlc_proto proto = {
.start = cisco_start,
.stop = cisco_stop,
@@ -359,7 +341,8 @@ static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
new_settings.timeout < 2)
return -EINVAL;
- result = hdlc->attach(dev, ENCODING_NRZ,PARITY_CRC16_PR1_CCITT);
+ result = hdlc->attach(dev, ENCODING_NRZ,
+ PARITY_CRC16_PR1_CCITT);
if (result)
return result;
@@ -381,21 +364,17 @@ static int cisco_ioctl(struct net_device *dev, struct ifreq *ifr)
return -EINVAL;
}
-
static int __init mod_init(void)
{
register_hdlc_protocol(&proto);
return 0;
}
-
-
static void __exit mod_exit(void)
{
unregister_hdlc_protocol(&proto);
}
-
module_init(mod_init);
module_exit(mod_exit);