Merge tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:

 - Add redirect_neigh() BPF packet redirect helper, allowing to limit
   stack traversal in common container configs and improving TCP
   back-pressure.

   Daniel reports ~10Gbps => ~15Gbps single stream TCP performance gain.

 - Expand netlink policy support and improve policy export to user
   space. (Ge)netlink core performs request validation according to
   declared policies. Expand the expressiveness of those policies
   (min/max length and bitmasks). Allow dumping policies for particular
   commands. This is used for feature discovery by user space (instead
   of kernel version parsing or trial and error).

 - Support IGMPv3/MLDv2 multicast listener discovery protocols in
   bridge.

 - Allow more than 255 IPv4 multicast interfaces.

 - Add support for Type of Service (ToS) reflection in SYN/SYN-ACK
   packets of TCPv6.

 - In Multi-patch TCP (MPTCP) support concurrent transmission of data on
   multiple subflows in a load balancing scenario. Enhance advertising
   addresses via the RM_ADDR/ADD_ADDR options.

 - Support SMC-Dv2 version of SMC, which enables multi-subnet
   deployments.

 - Allow more calls to same peer in RxRPC.

 - Support two new Controller Area Network (CAN) protocols - CAN-FD and
   ISO 15765-2:2016.

 - Add xfrm/IPsec compat layer, solving the 32bit user space on 64bit
   kernel problem.

 - Add TC actions for implementing MPLS L2 VPNs.

 - Improve nexthop code - e.g. handle various corner cases when nexthop
   objects are removed from groups better, skip unnecessary
   notifications and make it easier to offload nexthops into HW by
   converting to a blocking notifier.

 - Support adding and consuming TCP header options by BPF programs,
   opening the doors for easy experimental and deployment-specific TCP
   option use.

 - Reorganize TCP congestion control (CC) initialization to simplify
   life of TCP CC implemented in BPF.

 - Add support for shipping BPF programs with the kernel and loading
   them early on boot via the User Mode Driver mechanism, hence reusing
   all the user space infra we have.

 - Support sleepable BPF programs, initially targeting LSM and tracing.

 - Add bpf_d_path() helper for returning full path for given 'struct
   path'.

 - Make bpf_tail_call compatible with bpf-to-bpf calls.

 - Allow BPF programs to call map_update_elem on sockmaps.

 - Add BPF Type Format (BTF) support for type and enum discovery, as
   well as support for using BTF within the kernel itself (current use
   is for pretty printing structures).

 - Support listing and getting information about bpf_links via the bpf
   syscall.

 - Enhance kernel interfaces around NIC firmware update. Allow
   specifying overwrite mask to control if settings etc. are reset
   during update; report expected max time operation may take to users;
   support firmware activation without machine reboot incl. limits of
   how much impact reset may have (e.g. dropping link or not).

 - Extend ethtool configuration interface to report IEEE-standard
   counters, to limit the need for per-vendor logic in user space.

 - Adopt or extend devlink use for debug, monitoring, fw update in many
   drivers (dsa loop, ice, ionic, sja1105, qed, mlxsw, mv88e6xxx,
   dpaa2-eth).

 - In mlxsw expose critical and emergency SFP module temperature alarms.
   Refactor port buffer handling to make the defaults more suitable and
   support setting these values explicitly via the DCBNL interface.

 - Add XDP support for Intel's igb driver.

 - Support offloading TC flower classification and filtering rules to
   mscc_ocelot switches.

 - Add PTP support for Marvell Octeontx2 and PP2.2 hardware, as well as
   fixed interval period pulse generator and one-step timestamping in
   dpaa-eth.

 - Add support for various auth offloads in WiFi APs, e.g. SAE (WPA3)
   offload.

 - Add Lynx PHY/PCS MDIO module, and convert various drivers which have
   this HW to use it. Convert mvpp2 to split PCS.

 - Support Marvell Prestera 98DX3255 24-port switch ASICs, as well as
   7-port Mediatek MT7531 IP.

 - Add initial support for QCA6390 and IPQ6018 in ath11k WiFi driver,
   and wcn3680 support in wcn36xx.

 - Improve performance for packets which don't require much offloads on
   recent Mellanox NICs by 20% by making multiple packets share a
   descriptor entry.

 - Move chelsio inline crypto drivers (for TLS and IPsec) from the
   crypto subtree to drivers/net. Move MDIO drivers out of the phy
   directory.

 - Clean up a lot of W=1 warnings, reportedly the actively developed
   subsections of networking drivers should now build W=1 warning free.

 - Make sure drivers don't use in_interrupt() to dynamically adapt their
   code. Convert tasklets to use new tasklet_setup API (sadly this
   conversion is not yet complete).

* tag 'net-next-5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2583 commits)
  Revert "bpfilter: Fix build error with CONFIG_BPFILTER_UMH"
  net, sockmap: Don't call bpf_prog_put() on NULL pointer
  bpf, selftest: Fix flaky tcp_hdr_options test when adding addr to lo
  bpf, sockmap: Add locking annotations to iterator
  netfilter: nftables: allow re-computing sctp CRC-32C in 'payload' statements
  net: fix pos incrementment in ipv6_route_seq_next
  net/smc: fix invalid return code in smcd_new_buf_create()
  net/smc: fix valid DMBE buffer sizes
  net/smc: fix use-after-free of delayed events
  bpfilter: Fix build error with CONFIG_BPFILTER_UMH
  cxgb4/ch_ipsec: Replace the module name to ch_ipsec from chcr
  net: sched: Fix suspicious RCU usage while accessing tcf_tunnel_info
  bpf: Fix register equivalence tracking.
  rxrpc: Fix loss of final ack on shutdown
  rxrpc: Fix bundle counting for exclusive connections
  netfilter: restore NF_INET_NUMHOOKS
  ibmveth: Identify ingress large send packets.
  ibmveth: Switch order of ibmveth_helper calls.
  cxgb4: handle 4-tuple PEDIT to NAT mode translation
  selftests: Add VRF route leaking tests
  ...

1 files changed, 11 insertions, 81 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index e2fe78e2e242..2820a0bb971b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -2017,33 +2017,14 @@ static void mboxlog_stop(struct seq_file *seq, void *v)
 {
 }
 
-static const struct seq_operations mboxlog_seq_ops = {
+static const struct seq_operations mboxlog_sops = {
 	.start = mboxlog_start,
 	.next  = mboxlog_next,
 	.stop  = mboxlog_stop,
 	.show  = mboxlog_show
 };
 
-static int mboxlog_open(struct inode *inode, struct file *file)
-{
-	int res = seq_open(file, &mboxlog_seq_ops);
-
-	if (!res) {
-		struct seq_file *seq = file->private_data;
-
-		seq->private = inode->i_private;
-	}
-	return res;
-}
-
-static const struct file_operations mboxlog_fops = {
-	.owner   = THIS_MODULE,
-	.open    = mboxlog_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
-
+DEFINE_SEQ_ATTRIBUTE(mboxlog);
 /*
  * Show SGE Queue Set information.  We display QPL Queues Sets per line.
  */
@@ -2171,31 +2152,14 @@ static void *sge_queue_next(struct seq_file *seq, void *v, loff_t *pos)
 	return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
 }
 
-static const struct seq_operations sge_qinfo_seq_ops = {
+static const struct seq_operations sge_qinfo_sops = {
 	.start = sge_queue_start,
 	.next  = sge_queue_next,
 	.stop  = sge_queue_stop,
 	.show  = sge_qinfo_show
 };
 
-static int sge_qinfo_open(struct inode *inode, struct file *file)
-{
-	int res = seq_open(file, &sge_qinfo_seq_ops);
-
-	if (!res) {
-		struct seq_file *seq = file->private_data;
-		seq->private = inode->i_private;
-	}
-	return res;
-}
-
-static const struct file_operations sge_qinfo_debugfs_fops = {
-	.owner   = THIS_MODULE,
-	.open    = sge_qinfo_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(sge_qinfo);
 
 /*
  * Show SGE Queue Set statistics.  We display QPL Queues Sets per line.
@@ -2317,31 +2281,14 @@ static void *sge_qstats_next(struct seq_file *seq, void *v, loff_t *pos)
 	return *pos < entries ? (void *)((uintptr_t)*pos + 1) : NULL;
 }
 
-static const struct seq_operations sge_qstats_seq_ops = {
+static const struct seq_operations sge_qstats_sops = {
 	.start = sge_qstats_start,
 	.next  = sge_qstats_next,
 	.stop  = sge_qstats_stop,
 	.show  = sge_qstats_show
 };
 
-static int sge_qstats_open(struct inode *inode, struct file *file)
-{
-	int res = seq_open(file, &sge_qstats_seq_ops);
-
-	if (res == 0) {
-		struct seq_file *seq = file->private_data;
-		seq->private = inode->i_private;
-	}
-	return res;
-}
-
-static const struct file_operations sge_qstats_proc_fops = {
-	.owner   = THIS_MODULE,
-	.open    = sge_qstats_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(sge_qstats);
 
 /*
  * Show PCI-E SR-IOV Virtual Function Resource Limits.
@@ -2415,31 +2362,14 @@ static void interfaces_stop(struct seq_file *seq, void *v)
 {
 }
 
-static const struct seq_operations interfaces_seq_ops = {
+static const struct seq_operations interfaces_sops = {
 	.start = interfaces_start,
 	.next  = interfaces_next,
 	.stop  = interfaces_stop,
 	.show  = interfaces_show
 };
 
-static int interfaces_open(struct inode *inode, struct file *file)
-{
-	int res = seq_open(file, &interfaces_seq_ops);
-
-	if (res == 0) {
-		struct seq_file *seq = file->private_data;
-		seq->private = inode->i_private;
-	}
-	return res;
-}
-
-static const struct file_operations interfaces_proc_fops = {
-	.owner   = THIS_MODULE,
-	.open    = interfaces_open,
-	.read    = seq_read,
-	.llseek  = seq_lseek,
-	.release = seq_release,
-};
+DEFINE_SEQ_ATTRIBUTE(interfaces);
 
 /*
  * /sys/kernel/debugfs/cxgb4vf/ files list.
@@ -2452,10 +2382,10 @@ struct cxgb4vf_debugfs_entry {
 
 static struct cxgb4vf_debugfs_entry debugfs_files[] = {
 	{ "mboxlog",    0444, &mboxlog_fops },
-	{ "sge_qinfo",  0444, &sge_qinfo_debugfs_fops },
-	{ "sge_qstats", 0444, &sge_qstats_proc_fops },
+	{ "sge_qinfo",  0444, &sge_qinfo_fops },
+	{ "sge_qstats", 0444, &sge_qstats_fops },
 	{ "resources",  0444, &resources_fops },
-	{ "interfaces", 0444, &interfaces_proc_fops },
+	{ "interfaces", 0444, &interfaces_fops },
 };
 
 /*