Merge tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core:

   - Remove socket skb caches

   - Add a SO_RESERVE_MEM socket op to forward allocate buffer space and
     avoid memory accounting overhead on each message sent

   - Introduce managed neighbor entries - added by control plane and
     resolved by the kernel for use in acceleration paths (BPF / XDP
     right now, HW offload users will benefit as well)

   - Make neighbor eviction on link down controllable by userspace to
     work around WiFi networks with bad roaming implementations

   - vrf: Rework interaction with netfilter/conntrack

   - fq_codel: implement L4S style ce_threshold_ect1 marking

   - sch: Eliminate unnecessary RCU waits in mini_qdisc_pair_swap()

  BPF:

   - Add support for new btf kind BTF_KIND_TAG, arbitrary type tagging
     as implemented in LLVM14

   - Introduce bpf_get_branch_snapshot() to capture Last Branch Records

   - Implement variadic trace_printk helper

   - Add a new Bloomfilter map type

   - Track <8-byte scalar spill and refill

   - Access hw timestamp through BPF's __sk_buff

   - Disallow unprivileged BPF by default

   - Document BPF licensing

  Netfilter:

   - Introduce egress hook for looking at raw outgoing packets

   - Allow matching on and modifying inner headers / payload data

   - Add NFT_META_IFTYPE to match on the interface type either from
     ingress or egress

  Protocols:

   - Multi-Path TCP:
      - increase default max additional subflows to 2
      - rework forward memory allocation
      - add getsockopts: MPTCP_INFO, MPTCP_TCPINFO, MPTCP_SUBFLOW_ADDRS

   - MCTP flow support allowing lower layer drivers to configure msg
     muxing as needed

   - Automatic Multicast Tunneling (AMT) driver based on RFC7450

   - HSR support the redbox supervision frames (IEC-62439-3:2018)

   - Support for the ip6ip6 encapsulation of IOAM

   - Netlink interface for CAN-FD's Transmitter Delay Compensation

   - Support SMC-Rv2 eliminating the current same-subnet restriction, by
     exploiting the UDP encapsulation feature of RoCE adapters

   - TLS: add SM4 GCM/CCM crypto support

   - Bluetooth: initial support for link quality and audio/codec offload

  Driver APIs:

   - Add a batched interface for RX buffer allocation in AF_XDP buffer
     pool

   - ethtool: Add ability to control transceiver modules' power mode

   - phy: Introduce supported interfaces bitmap to express MAC
     capabilities and simplify PHY code

   - Drop rtnl_lock from DSA .port_fdb_{add,del} callbacks

  New drivers:

   - WiFi driver for Realtek 8852AE 802.11ax devices (rtw89)

   - Ethernet driver for ASIX AX88796C SPI device (x88796c)

  Drivers:

   - Broadcom PHYs
      - support 72165, 7712 16nm PHYs
      - support IDDQ-SR for additional power savings

   - PHY support for QCA8081, QCA9561 PHYs

   - NXP DPAA2: support for IRQ coalescing

   - NXP Ethernet (enetc): support for software TCP segmentation

   - Renesas Ethernet (ravb) - support DMAC and EMAC blocks of
     Gigabit-capable IP found on RZ/G2L SoC

   - Intel 100G Ethernet
      - support for eswitch offload of TC/OvS flow API, including
        offload of GRE, VxLAN, Geneve tunneling
      - support application device queues - ability to assign Rx and Tx
        queues to application threads
      - PTP and PPS (pulse-per-second) extensions

   - Broadcom Ethernet (bnxt)
      - devlink health reporting and device reload extensions

   - Mellanox Ethernet (mlx5)
      - offload macvlan interfaces
      - support HW offload of TC rules involving OVS internal ports
      - support HW-GRO and header/data split
      - support application device queues

   - Marvell OcteonTx2:
      - add XDP support for PF
      - add PTP support for VF

   - Qualcomm Ethernet switch (qca8k): support for QCA8328

   - Realtek Ethernet DSA switch (rtl8366rb)
      - support bridge offload
      - support STP, fast aging, disabling address learning
      - support for Realtek RTL8365MB-VC, a 4+1 port 10M/100M/1GE switch

   - Mellanox Ethernet/IB switch (mlxsw)
      - multi-level qdisc hierarchy offload (e.g. RED, prio and shaping)
      - offload root TBF qdisc as port shaper
      - support multiple routing interface MAC address prefixes
      - support for IP-in-IP with IPv6 underlay

   - MediaTek WiFi (mt76)
      - mt7921 - ASPM, 6GHz, SDIO and testmode support
      - mt7915 - LED and TWT support

   - Qualcomm WiFi (ath11k)
      - include channel rx and tx time in survey dump statistics
      - support for 80P80 and 160 MHz bandwidths
      - support channel 2 in 6 GHz band
      - spectral scan support for QCN9074
      - support for rx decapsulation offload (data frames in 802.3
        format)

   - Qualcomm phone SoC WiFi (wcn36xx)
      - enable Idle Mode Power Save (IMPS) to reduce power consumption
        during idle

   - Bluetooth driver support for MediaTek MT7922 and MT7921

   - Enable support for AOSP Bluetooth extension in Qualcomm WCN399x and
     Realtek 8822C/8852A

   - Microsoft vNIC driver (mana)
      - support hibernation and kexec

   - Google vNIC driver (gve)
      - support for jumbo frames
      - implement Rx page reuse

  Refactor:

   - Make all writes to netdev->dev_addr go thru helpers, so that we can
     add this address to the address rbtree and handle the updates

   - Various TCP cleanups and optimizations including improvements to
     CPU cache use

   - Simplify the gnet_stats, Qdisc stats' handling and remove
     qdisc->running sequence counter

   - Driver changes and API updates to address devlink locking
     deficiencies"

* tag 'net-next-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2122 commits)
  Revert "net: avoid double accounting for pure zerocopy skbs"
  selftests: net: add arp_ndisc_evict_nocarrier
  net: ndisc: introduce ndisc_evict_nocarrier sysctl parameter
  net: arp: introduce arp_evict_nocarrier sysctl parameter
  libbpf: Deprecate AF_XDP support
  kbuild: Unify options for BTF generation for vmlinux and modules
  selftests/bpf: Add a testcase for 64-bit bounds propagation issue.
  bpf: Fix propagation of signed bounds from 64-bit min/max into 32-bit.
  bpf: Fix propagation of bounds from 64-bit min/max into 32-bit and var_off.
  net: vmxnet3: remove multiple false checks in vmxnet3_ethtool.c
  net: avoid double accounting for pure zerocopy skbs
  tcp: rename sk_wmem_free_skb
  netdevsim: fix uninit value in nsim_drv_configure_vfs()
  selftests/bpf: Fix also no-alu32 strobemeta selftest
  bpf: Add missing map_delete_elem method to bloom filter map
  selftests/bpf: Add bloom map success test for userspace calls
  bpf: Add alignment padding for "map_extra" + consolidate holes
  bpf: Bloom filter map naming fixups
  selftests/bpf: Add test cases for struct_ops prog
  bpf: Add dummy BPF STRUCT_OPS for test purpose
  ...

1 files changed, 27 insertions, 50 deletions

diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c
index e9911b18bdbf..826957b6442b 100644
--- a/net/dsa/dsa2.c
+++ b/net/dsa/dsa2.c
@@ -399,11 +399,8 @@ static int dsa_tree_setup_cpu_ports(struct dsa_switch_tree *dst)
 		if (!dsa_port_is_cpu(cpu_dp))
 			continue;
 
-		list_for_each_entry(dp, &dst->ports, list) {
-			/* Prefer a local CPU port */
-			if (dp->ds != cpu_dp->ds)
-				continue;
-
+		/* Prefer a local CPU port */
+		dsa_switch_for_each_port(dp, cpu_dp->ds) {
 			/* Prefer the first local CPU port found */
 			if (dp->cpu_dp)
 				continue;
@@ -436,6 +433,7 @@ static int dsa_port_setup(struct dsa_port *dp)
 	if (dp->setup)
 		return 0;
 
+	mutex_init(&dp->addr_lists_lock);
 	INIT_LIST_HEAD(&dp->fdbs);
 	INIT_LIST_HEAD(&dp->mdbs);
 
@@ -802,17 +800,16 @@ static int dsa_switch_setup_tag_protocol(struct dsa_switch *ds)
 {
 	const struct dsa_device_ops *tag_ops = ds->dst->tag_ops;
 	struct dsa_switch_tree *dst = ds->dst;
-	int port, err;
+	struct dsa_port *cpu_dp;
+	int err;
 
 	if (tag_ops->proto == dst->default_proto)
 		return 0;
 
-	for (port = 0; port < ds->num_ports; port++) {
-		if (!dsa_is_cpu_port(ds, port))
-			continue;
-
+	dsa_switch_for_each_cpu_port(cpu_dp, ds) {
 		rtnl_lock();
-		err = ds->ops->change_tag_protocol(ds, port, tag_ops->proto);
+		err = ds->ops->change_tag_protocol(ds, cpu_dp->index,
+						   tag_ops->proto);
 		rtnl_unlock();
 		if (err) {
 			dev_err(ds->dev, "Unable to use tag protocol \"%s\": %pe\n",
@@ -850,19 +847,13 @@ static int dsa_switch_setup(struct dsa_switch *ds)
 	dl_priv = devlink_priv(ds->devlink);
 	dl_priv->ds = ds;
 
-	err = devlink_register(ds->devlink);
-	if (err)
-		goto free_devlink;
-
 	/* Setup devlink port instances now, so that the switch
 	 * setup() can register regions etc, against the ports
 	 */
-	list_for_each_entry(dp, &ds->dst->ports, list) {
-		if (dp->ds == ds) {
-			err = dsa_port_devlink_setup(dp);
-			if (err)
-				goto unregister_devlink_ports;
-		}
+	dsa_switch_for_each_port(dp, ds) {
+		err = dsa_port_devlink_setup(dp);
+		if (err)
+			goto unregister_devlink_ports;
 	}
 
 	err = dsa_switch_register_notifier(ds);
@@ -879,8 +870,6 @@ static int dsa_switch_setup(struct dsa_switch *ds)
 	if (err)
 		goto teardown;
 
-	devlink_params_publish(ds->devlink);
-
 	if (!ds->slave_mii_bus && ds->ops->phy_read) {
 		ds->slave_mii_bus = mdiobus_alloc();
 		if (!ds->slave_mii_bus) {
@@ -896,7 +885,7 @@ static int dsa_switch_setup(struct dsa_switch *ds)
 	}
 
 	ds->setup = true;
-
+	devlink_register(ds->devlink);
 	return 0;
 
 free_slave_mii_bus:
@@ -908,14 +897,10 @@ teardown:
 unregister_notifier:
 	dsa_switch_unregister_notifier(ds);
 unregister_devlink_ports:
-	list_for_each_entry(dp, &ds->dst->ports, list)
-		if (dp->ds == ds)
-			dsa_port_devlink_teardown(dp);
-	devlink_unregister(ds->devlink);
-free_devlink:
+	dsa_switch_for_each_port(dp, ds)
+		dsa_port_devlink_teardown(dp);
 	devlink_free(ds->devlink);
 	ds->devlink = NULL;
-
 	return err;
 }
 
@@ -926,22 +911,23 @@ static void dsa_switch_teardown(struct dsa_switch *ds)
 	if (!ds->setup)
 		return;
 
+	if (ds->devlink)
+		devlink_unregister(ds->devlink);
+
 	if (ds->slave_mii_bus && ds->ops->phy_read) {
 		mdiobus_unregister(ds->slave_mii_bus);
 		mdiobus_free(ds->slave_mii_bus);
 		ds->slave_mii_bus = NULL;
 	}
 
-	dsa_switch_unregister_notifier(ds);
-
 	if (ds->ops->teardown)
 		ds->ops->teardown(ds);
 
+	dsa_switch_unregister_notifier(ds);
+
 	if (ds->devlink) {
-		list_for_each_entry(dp, &ds->dst->ports, list)
-			if (dp->ds == ds)
-				dsa_port_devlink_teardown(dp);
-		devlink_unregister(ds->devlink);
+		dsa_switch_for_each_port(dp, ds)
+			dsa_port_devlink_teardown(dp);
 		devlink_free(ds->devlink);
 		ds->devlink = NULL;
 	}
@@ -1157,7 +1143,7 @@ int dsa_tree_change_tag_proto(struct dsa_switch_tree *dst,
 		goto out_unlock;
 
 	list_for_each_entry(dp, &dst->ports, list) {
-		if (!dsa_is_user_port(dp->ds, dp->index))
+		if (!dsa_port_is_user(dp))
 			continue;
 
 		if (dp->slave->flags & IFF_UP)
@@ -1188,8 +1174,8 @@ static struct dsa_port *dsa_port_touch(struct dsa_switch *ds, int index)
 	struct dsa_switch_tree *dst = ds->dst;
 	struct dsa_port *dp;
 
-	list_for_each_entry(dp, &dst->ports, list)
-		if (dp->ds == ds && dp->index == index)
+	dsa_switch_for_each_port(dp, ds)
+		if (dp->index == index)
 			return dp;
 
 	dp = kzalloc(sizeof(*dp), GFP_KERNEL);
@@ -1535,12 +1521,9 @@ static int dsa_switch_parse(struct dsa_switch *ds, struct dsa_chip_data *cd)
 
 static void dsa_switch_release_ports(struct dsa_switch *ds)
 {
-	struct dsa_switch_tree *dst = ds->dst;
 	struct dsa_port *dp, *next;
 
-	list_for_each_entry_safe(dp, next, &dst->ports, list) {
-		if (dp->ds != ds)
-			continue;
+	dsa_switch_for_each_port_safe(dp, next, ds) {
 		list_del(&dp->list);
 		kfree(dp);
 	}
@@ -1632,13 +1615,7 @@ void dsa_switch_shutdown(struct dsa_switch *ds)
 	mutex_lock(&dsa2_mutex);
 	rtnl_lock();
 
-	list_for_each_entry(dp, &ds->dst->ports, list) {
-		if (dp->ds != ds)
-			continue;
-
-		if (!dsa_port_is_user(dp))
-			continue;
-
+	dsa_switch_for_each_user_port(dp, ds) {
 		master = dp->cpu_dp->master;
 		slave_dev = dp->slave;