Merge tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - support "prefer busy polling" NAPI operation mode, where we defer
     softirq for some time expecting applications to periodically busy
     poll

   - AF_XDP: improve efficiency by more batching and hindering the
     adjacency cache prefetcher

   - af_packet: make packet_fanout.arr size configurable up to 64K

   - tcp: optimize TCP zero copy receive in presence of partial or
     unaligned reads making zero copy a performance win for much smaller
     messages

   - XDP: add bulk APIs for returning / freeing frames

   - sched: support fragmenting IP packets as they come out of conntrack

   - net: allow virtual netdevs to forward UDP L4 and fraglist GSO skbs

  BPF:

   - BPF switch from crude rlimit-based to memcg-based memory accounting

   - BPF type format information for kernel modules and related tracing
     enhancements

   - BPF implement task local storage for BPF LSM

   - allow the FENTRY/FEXIT/RAW_TP tracing programs to use
     bpf_sk_storage

  Protocols:

   - mptcp: improve multiple xmit streams support, memory accounting and
     many smaller improvements

   - TLS: support CHACHA20-POLY1305 cipher

   - seg6: add support for SRv6 End.DT4/DT6 behavior

   - sctp: Implement RFC 6951: UDP Encapsulation of SCTP

   - ppp_generic: add ability to bridge channels directly

   - bridge: Connectivity Fault Management (CFM) support as is defined
     in IEEE 802.1Q section 12.14.

  Drivers:

   - mlx5: make use of the new auxiliary bus to organize the driver
     internals

   - mlx5: more accurate port TX timestamping support

   - mlxsw:
      - improve the efficiency of offloaded next hop updates by using
        the new nexthop object API
      - support blackhole nexthops
      - support IEEE 802.1ad (Q-in-Q) bridging

   - rtw88: major bluetooth co-existance improvements

   - iwlwifi: support new 6 GHz frequency band

   - ath11k: Fast Initial Link Setup (FILS)

   - mt7915: dual band concurrent (DBDC) support

   - net: ipa: add basic support for IPA v4.5

  Refactor:

   - a few pieces of in_interrupt() cleanup work from Sebastian Andrzej
     Siewior

   - phy: add support for shared interrupts; get rid of multiple driver
     APIs and have the drivers write a full IRQ handler, slight growth
     of driver code should be compensated by the simpler API which also
     allows shared IRQs

   - add common code for handling netdev per-cpu counters

   - move TX packet re-allocation from Ethernet switch tag drivers to a
     central place

   - improve efficiency and rename nla_strlcpy

   - number of W=1 warning cleanups as we now catch those in a patchwork
     build bot

  Old code removal:

   - wan: delete the DLCI / SDLA drivers

   - wimax: move to staging

   - wifi: remove old WDS wifi bridging support"

* tag 'net-next-5.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1922 commits)
  net: hns3: fix expression that is currently always true
  net: fix proc_fs init handling in af_packet and tls
  nfc: pn533: convert comma to semicolon
  af_vsock: Assign the vsock transport considering the vsock address flags
  af_vsock: Set VMADDR_FLAG_TO_HOST flag on the receive path
  vsock_addr: Check for supported flag values
  vm_sockets: Add VMADDR_FLAG_TO_HOST vsock flag
  vm_sockets: Add flags field in the vsock address data structure
  net: Disable NETIF_F_HW_TLS_TX when HW_CSUM is disabled
  tcp: Add logic to check for SYN w/ data in tcp_simple_retransmit
  net: mscc: ocelot: install MAC addresses in .ndo_set_rx_mode from process context
  nfc: s3fwrn5: Release the nfc firmware
  net: vxget: clean up sparse warnings
  mlxsw: spectrum_router: Use eXtended mezzanine to offload IPv4 router
  mlxsw: spectrum: Set KVH XLT cache mode for Spectrum2/3
  mlxsw: spectrum_router_xm: Introduce basic XM cache flushing
  mlxsw: reg: Add Router LPM Cache Enable Register
  mlxsw: reg: Add Router LPM Cache ML Delete Register
  mlxsw: spectrum_router_xm: Implement L-value tracking for M-index
  mlxsw: reg: Add XM Router M Table Register
  ...

4 files changed, 5 insertions, 43 deletions

diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c
index a40701a6e1b6..0b64aa87ab73 100644
--- a/drivers/infiniband/hw/hfi1/driver.c
+++ b/drivers/infiniband/hw/hfi1/driver.c
@@ -1686,7 +1686,6 @@ static void hfi1_ipoib_ib_rcv(struct hfi1_packet *packet)
 	u32 extra_bytes;
 	u32 tlen, qpnum;
 	bool do_work, do_cnp;
-	struct hfi1_ipoib_dev_priv *priv;
 
 	trace_hfi1_rcvhdr(packet);
 
@@ -1734,8 +1733,7 @@ static void hfi1_ipoib_ib_rcv(struct hfi1_packet *packet)
 	if (unlikely(!skb))
 		goto drop;
 
-	priv = hfi1_ipoib_priv(netdev);
-	hfi1_ipoib_update_rx_netstats(priv, 1, skb->len);
+	dev_sw_netstats_rx_add(netdev, skb->len);
 
 	skb->dev = netdev;
 	skb->pkt_type = PACKET_HOST;
diff --git a/drivers/infiniband/hw/hfi1/ipoib.h b/drivers/infiniband/hw/hfi1/ipoib.h
index b8c9d0a003fb..f650cac9d424 100644
--- a/drivers/infiniband/hw/hfi1/ipoib.h
+++ b/drivers/infiniband/hw/hfi1/ipoib.h
@@ -110,7 +110,6 @@ struct hfi1_ipoib_dev_priv {
 
 	const struct net_device_ops *netdev_ops;
 	struct rvt_qp *qp;
-	struct pcpu_sw_netstats __percpu *netstats;
 };
 
 /* hfi1 ipoib rdma netdev's private data structure */
@@ -126,32 +125,6 @@ hfi1_ipoib_priv(const struct net_device *dev)
 	return &((struct hfi1_ipoib_rdma_netdev *)netdev_priv(dev))->dev_priv;
 }
 
-static inline void
-hfi1_ipoib_update_rx_netstats(struct hfi1_ipoib_dev_priv *priv,
-			      u64 packets,
-			      u64 bytes)
-{
-	struct pcpu_sw_netstats *netstats = this_cpu_ptr(priv->netstats);
-
-	u64_stats_update_begin(&netstats->syncp);
-	netstats->rx_packets += packets;
-	netstats->rx_bytes += bytes;
-	u64_stats_update_end(&netstats->syncp);
-}
-
-static inline void
-hfi1_ipoib_update_tx_netstats(struct hfi1_ipoib_dev_priv *priv,
-			      u64 packets,
-			      u64 bytes)
-{
-	struct pcpu_sw_netstats *netstats = this_cpu_ptr(priv->netstats);
-
-	u64_stats_update_begin(&netstats->syncp);
-	netstats->tx_packets += packets;
-	netstats->tx_bytes += bytes;
-	u64_stats_update_end(&netstats->syncp);
-}
-
 int hfi1_ipoib_send_dma(struct net_device *dev,
 			struct sk_buff *skb,
 			struct ib_ah *address,
diff --git a/drivers/infiniband/hw/hfi1/ipoib_main.c b/drivers/infiniband/hw/hfi1/ipoib_main.c
index 9f71b9d706bd..3242290eb6a7 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_main.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_main.c
@@ -21,7 +21,7 @@ static int hfi1_ipoib_dev_init(struct net_device *dev)
 	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);
 	int ret;
 
-	priv->netstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+	dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
 
 	ret = priv->netdev_ops->ndo_init(dev);
 	if (ret)
@@ -93,21 +93,12 @@ static int hfi1_ipoib_dev_stop(struct net_device *dev)
 	return priv->netdev_ops->ndo_stop(dev);
 }
 
-static void hfi1_ipoib_dev_get_stats64(struct net_device *dev,
-				       struct rtnl_link_stats64 *storage)
-{
-	struct hfi1_ipoib_dev_priv *priv = hfi1_ipoib_priv(dev);
-
-	netdev_stats_to_stats64(storage, &dev->stats);
-	dev_fetch_sw_netstats(storage, priv->netstats);
-}
-
 static const struct net_device_ops hfi1_ipoib_netdev_ops = {
 	.ndo_init         = hfi1_ipoib_dev_init,
 	.ndo_uninit       = hfi1_ipoib_dev_uninit,
 	.ndo_open         = hfi1_ipoib_dev_open,
 	.ndo_stop         = hfi1_ipoib_dev_stop,
-	.ndo_get_stats64  = hfi1_ipoib_dev_get_stats64,
+	.ndo_get_stats64  = dev_get_tstats64,
 };
 
 static int hfi1_ipoib_send(struct net_device *dev,
@@ -182,7 +173,7 @@ static void hfi1_ipoib_netdev_dtor(struct net_device *dev)
 	hfi1_ipoib_txreq_deinit(priv);
 	hfi1_ipoib_rxq_deinit(priv->netdev);
 
-	free_percpu(priv->netstats);
+	free_percpu(dev->tstats);
 }
 
 static void hfi1_ipoib_free_rdma_netdev(struct net_device *dev)
diff --git a/drivers/infiniband/hw/hfi1/ipoib_tx.c b/drivers/infiniband/hw/hfi1/ipoib_tx.c
index 9df292b51a05..edd4eeac8dd1 100644
--- a/drivers/infiniband/hw/hfi1/ipoib_tx.c
+++ b/drivers/infiniband/hw/hfi1/ipoib_tx.c
@@ -121,7 +121,7 @@ static void hfi1_ipoib_free_tx(struct ipoib_txreq *tx, int budget)
 	struct hfi1_ipoib_dev_priv *priv = tx->priv;
 
 	if (likely(!tx->sdma_status)) {
-		hfi1_ipoib_update_tx_netstats(priv, 1, tx->skb->len);
+		dev_sw_netstats_tx_add(priv->netdev, 1, tx->skb->len);
 	} else {
 		++priv->netdev->stats.tx_errors;
 		dd_dev_warn(priv->dd,