Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 544 insertions, 0 deletions

diff --git a/drivers/net/ethernet/ti/cpsw_switchdev.c b/drivers/net/ethernet/ti/cpsw_switchdev.c
new file mode 100644
index 000000000..ce85f7610
--- /dev/null
+++ b/drivers/net/ethernet/ti/cpsw_switchdev.c
@@ -0,0 +1,544 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Texas Instruments switchdev Driver
+ *
+ * Copyright (C) 2019 Texas Instruments
+ *
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/if_bridge.h>
+#include <linux/netdevice.h>
+#include <linux/workqueue.h>
+#include <net/switchdev.h>
+
+#include "cpsw.h"
+#include "cpsw_ale.h"
+#include "cpsw_priv.h"
+#include "cpsw_switchdev.h"
+
+struct cpsw_switchdev_event_work {
+	struct work_struct work;
+	struct switchdev_notifier_fdb_info fdb_info;
+	struct cpsw_priv *priv;
+	unsigned long event;
+};
+
+static int cpsw_port_stp_state_set(struct cpsw_priv *priv, u8 state)
+{
+	struct cpsw_common *cpsw = priv->cpsw;
+	u8 cpsw_state;
+	int ret = 0;
+
+	switch (state) {
+	case BR_STATE_FORWARDING:
+		cpsw_state = ALE_PORT_STATE_FORWARD;
+		break;
+	case BR_STATE_LEARNING:
+		cpsw_state = ALE_PORT_STATE_LEARN;
+		break;
+	case BR_STATE_DISABLED:
+		cpsw_state = ALE_PORT_STATE_DISABLE;
+		break;
+	case BR_STATE_LISTENING:
+	case BR_STATE_BLOCKING:
+		cpsw_state = ALE_PORT_STATE_BLOCK;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	ret = cpsw_ale_control_set(cpsw->ale, priv->emac_port,
+				   ALE_PORT_STATE, cpsw_state);
+	dev_dbg(priv->dev, "ale state: %u\n", cpsw_state);
+
+	return ret;
+}
+
+static int cpsw_port_attr_br_flags_set(struct cpsw_priv *priv,
+				       struct net_device *orig_dev,
+				       struct switchdev_brport_flags flags)
+{
+	struct cpsw_common *cpsw = priv->cpsw;
+
+	if (flags.mask & BR_MCAST_FLOOD) {
+		bool unreg_mcast_add = false;
+
+		if (flags.val & BR_MCAST_FLOOD)
+			unreg_mcast_add = true;
+
+		dev_dbg(priv->dev, "BR_MCAST_FLOOD: %d port %u\n",
+			unreg_mcast_add, priv->emac_port);
+
+		cpsw_ale_set_unreg_mcast(cpsw->ale, BIT(priv->emac_port),
+					 unreg_mcast_add);
+	}
+
+	return 0;
+}
+
+static int cpsw_port_attr_br_flags_pre_set(struct net_device *netdev,
+					   struct switchdev_brport_flags flags)
+{
+	if (flags.mask & ~(BR_LEARNING | BR_MCAST_FLOOD))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int cpsw_port_attr_set(struct net_device *ndev, const void *ctx,
+			      const struct switchdev_attr *attr,
+			      struct netlink_ext_ack *extack)
+{
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int ret;
+
+	dev_dbg(priv->dev, "attr: id %u port: %u\n", attr->id, priv->emac_port);
+
+	switch (attr->id) {
+	case SWITCHDEV_ATTR_ID_PORT_PRE_BRIDGE_FLAGS:
+		ret = cpsw_port_attr_br_flags_pre_set(ndev,
+						      attr->u.brport_flags);
+		break;
+	case SWITCHDEV_ATTR_ID_PORT_STP_STATE:
+		ret = cpsw_port_stp_state_set(priv, attr->u.stp_state);
+		dev_dbg(priv->dev, "stp state: %u\n", attr->u.stp_state);
+		break;
+	case SWITCHDEV_ATTR_ID_PORT_BRIDGE_FLAGS:
+		ret = cpsw_port_attr_br_flags_set(priv, attr->orig_dev,
+						  attr->u.brport_flags);
+		break;
+	default:
+		ret = -EOPNOTSUPP;
+		break;
+	}
+
+	return ret;
+}
+
+static u16 cpsw_get_pvid(struct cpsw_priv *priv)
+{
+	struct cpsw_common *cpsw = priv->cpsw;
+	u32 __iomem *port_vlan_reg;
+	u32 pvid;
+
+	if (priv->emac_port) {
+		int reg = CPSW2_PORT_VLAN;
+
+		if (cpsw->version == CPSW_VERSION_1)
+			reg = CPSW1_PORT_VLAN;
+		pvid = slave_read(cpsw->slaves + (priv->emac_port - 1), reg);
+	} else {
+		port_vlan_reg = &cpsw->host_port_regs->port_vlan;
+		pvid = readl(port_vlan_reg);
+	}
+
+	pvid = pvid & 0xfff;
+
+	return pvid;
+}
+
+static void cpsw_set_pvid(struct cpsw_priv *priv, u16 vid, bool cfi, u32 cos)
+{
+	struct cpsw_common *cpsw = priv->cpsw;
+	void __iomem *port_vlan_reg;
+	u32 pvid;
+
+	pvid = vid;
+	pvid |= cfi ? BIT(12) : 0;
+	pvid |= (cos & 0x7) << 13;
+
+	if (priv->emac_port) {
+		int reg = CPSW2_PORT_VLAN;
+
+		if (cpsw->version == CPSW_VERSION_1)
+			reg = CPSW1_PORT_VLAN;
+		/* no barrier */
+		slave_write(cpsw->slaves + (priv->emac_port - 1), pvid, reg);
+	} else {
+		/* CPU port */
+		port_vlan_reg = &cpsw->host_port_regs->port_vlan;
+		writel(pvid, port_vlan_reg);
+	}
+}
+
+static int cpsw_port_vlan_add(struct cpsw_priv *priv, bool untag, bool pvid,
+			      u16 vid, struct net_device *orig_dev)
+{
+	bool cpu_port = netif_is_bridge_master(orig_dev);
+	struct cpsw_common *cpsw = priv->cpsw;
+	int unreg_mcast_mask = 0;
+	int reg_mcast_mask = 0;
+	int untag_mask = 0;
+	int port_mask;
+	int ret = 0;
+	u32 flags;
+
+	if (cpu_port) {
+		port_mask = BIT(HOST_PORT_NUM);
+		flags = orig_dev->flags;
+		unreg_mcast_mask = port_mask;
+	} else {
+		port_mask = BIT(priv->emac_port);
+		flags = priv->ndev->flags;
+	}
+
+	if (flags & IFF_MULTICAST)
+		reg_mcast_mask = port_mask;
+
+	if (untag)
+		untag_mask = port_mask;
+
+	ret = cpsw_ale_vlan_add_modify(cpsw->ale, vid, port_mask, untag_mask,
+				       reg_mcast_mask, unreg_mcast_mask);
+	if (ret) {
+		dev_err(priv->dev, "Unable to add vlan\n");
+		return ret;
+	}
+
+	if (cpu_port)
+		cpsw_ale_add_ucast(cpsw->ale, priv->mac_addr,
+				   HOST_PORT_NUM, ALE_VLAN, vid);
+	if (!pvid)
+		return ret;
+
+	cpsw_set_pvid(priv, vid, 0, 0);
+
+	dev_dbg(priv->dev, "VID add: %s: vid:%u ports:%X\n",
+		priv->ndev->name, vid, port_mask);
+	return ret;
+}
+
+static int cpsw_port_vlan_del(struct cpsw_priv *priv, u16 vid,
+			      struct net_device *orig_dev)
+{
+	bool cpu_port = netif_is_bridge_master(orig_dev);
+	struct cpsw_common *cpsw = priv->cpsw;
+	int port_mask;
+	int ret = 0;
+
+	if (cpu_port)
+		port_mask = BIT(HOST_PORT_NUM);
+	else
+		port_mask = BIT(priv->emac_port);
+
+	ret = cpsw_ale_vlan_del_modify(cpsw->ale, vid, port_mask);
+	if (ret != 0)
+		return ret;
+
+	/* We don't care for the return value here, error is returned only if
+	 * the unicast entry is not present
+	 */
+	if (cpu_port)
+		cpsw_ale_del_ucast(cpsw->ale, priv->mac_addr,
+				   HOST_PORT_NUM, ALE_VLAN, vid);
+
+	if (vid == cpsw_get_pvid(priv))
+		cpsw_set_pvid(priv, 0, 0, 0);
+
+	/* We don't care for the return value here, error is returned only if
+	 * the multicast entry is not present
+	 */
+	cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast,
+			   port_mask, ALE_VLAN, vid);
+	dev_dbg(priv->dev, "VID del: %s: vid:%u ports:%X\n",
+		priv->ndev->name, vid, port_mask);
+
+	return ret;
+}
+
+static int cpsw_port_vlans_add(struct cpsw_priv *priv,
+			       const struct switchdev_obj_port_vlan *vlan)
+{
+	bool untag = vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED;
+	struct net_device *orig_dev = vlan->obj.orig_dev;
+	bool pvid = vlan->flags & BRIDGE_VLAN_INFO_PVID;
+
+	dev_dbg(priv->dev, "VID add: %s: vid:%u flags:%X\n",
+		priv->ndev->name, vlan->vid, vlan->flags);
+
+	return cpsw_port_vlan_add(priv, untag, pvid, vlan->vid, orig_dev);
+}
+
+static int cpsw_port_mdb_add(struct cpsw_priv *priv,
+			     struct switchdev_obj_port_mdb *mdb)
+
+{
+	struct net_device *orig_dev = mdb->obj.orig_dev;
+	bool cpu_port = netif_is_bridge_master(orig_dev);
+	struct cpsw_common *cpsw = priv->cpsw;
+	int port_mask;
+	int err;
+
+	if (cpu_port)
+		port_mask = BIT(HOST_PORT_NUM);
+	else
+		port_mask = BIT(priv->emac_port);
+
+	err = cpsw_ale_add_mcast(cpsw->ale, mdb->addr, port_mask,
+				 ALE_VLAN, mdb->vid, 0);
+	dev_dbg(priv->dev, "MDB add: %s: vid %u:%pM  ports: %X\n",
+		priv->ndev->name, mdb->vid, mdb->addr, port_mask);
+
+	return err;
+}
+
+static int cpsw_port_mdb_del(struct cpsw_priv *priv,
+			     struct switchdev_obj_port_mdb *mdb)
+
+{
+	struct net_device *orig_dev = mdb->obj.orig_dev;
+	bool cpu_port = netif_is_bridge_master(orig_dev);
+	struct cpsw_common *cpsw = priv->cpsw;
+	int del_mask;
+	int err;
+
+	if (cpu_port)
+		del_mask = BIT(HOST_PORT_NUM);
+	else
+		del_mask = BIT(priv->emac_port);
+
+	err = cpsw_ale_del_mcast(cpsw->ale, mdb->addr, del_mask,
+				 ALE_VLAN, mdb->vid);
+	dev_dbg(priv->dev, "MDB del: %s: vid %u:%pM  ports: %X\n",
+		priv->ndev->name, mdb->vid, mdb->addr, del_mask);
+
+	return err;
+}
+
+static int cpsw_port_obj_add(struct net_device *ndev, const void *ctx,
+			     const struct switchdev_obj *obj,
+			     struct netlink_ext_ack *extack)
+{
+	struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
+	struct switchdev_obj_port_mdb *mdb = SWITCHDEV_OBJ_PORT_MDB(obj);
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int err = 0;
+
+	dev_dbg(priv->dev, "obj_add: id %u port: %u\n",
+		obj->id, priv->emac_port);
+
+	switch (obj->id) {
+	case SWITCHDEV_OBJ_ID_PORT_VLAN:
+		err = cpsw_port_vlans_add(priv, vlan);
+		break;
+	case SWITCHDEV_OBJ_ID_PORT_MDB:
+	case SWITCHDEV_OBJ_ID_HOST_MDB:
+		err = cpsw_port_mdb_add(priv, mdb);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	return err;
+}
+
+static int cpsw_port_obj_del(struct net_device *ndev, const void *ctx,
+			     const struct switchdev_obj *obj)
+{
+	struct switchdev_obj_port_vlan *vlan = SWITCHDEV_OBJ_PORT_VLAN(obj);
+	struct switchdev_obj_port_mdb *mdb = SWITCHDEV_OBJ_PORT_MDB(obj);
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int err = 0;
+
+	dev_dbg(priv->dev, "obj_del: id %u port: %u\n",
+		obj->id, priv->emac_port);
+
+	switch (obj->id) {
+	case SWITCHDEV_OBJ_ID_PORT_VLAN:
+		err = cpsw_port_vlan_del(priv, vlan->vid, vlan->obj.orig_dev);
+		break;
+	case SWITCHDEV_OBJ_ID_PORT_MDB:
+	case SWITCHDEV_OBJ_ID_HOST_MDB:
+		err = cpsw_port_mdb_del(priv, mdb);
+		break;
+	default:
+		err = -EOPNOTSUPP;
+		break;
+	}
+
+	return err;
+}
+
+static void cpsw_fdb_offload_notify(struct net_device *ndev,
+				    struct switchdev_notifier_fdb_info *rcv)
+{
+	struct switchdev_notifier_fdb_info info = {};
+
+	info.addr = rcv->addr;
+	info.vid = rcv->vid;
+	info.offloaded = true;
+	call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED,
+				 ndev, &info.info, NULL);
+}
+
+static void cpsw_switchdev_event_work(struct work_struct *work)
+{
+	struct cpsw_switchdev_event_work *switchdev_work =
+		container_of(work, struct cpsw_switchdev_event_work, work);
+	struct cpsw_priv *priv = switchdev_work->priv;
+	struct switchdev_notifier_fdb_info *fdb;
+	struct cpsw_common *cpsw = priv->cpsw;
+	int port = priv->emac_port;
+
+	rtnl_lock();
+	switch (switchdev_work->event) {
+	case SWITCHDEV_FDB_ADD_TO_DEVICE:
+		fdb = &switchdev_work->fdb_info;
+
+		dev_dbg(cpsw->dev, "cpsw_fdb_add: MACID = %pM vid = %u flags = %u %u -- port %d\n",
+			fdb->addr, fdb->vid, fdb->added_by_user,
+			fdb->offloaded, port);
+
+		if (!fdb->added_by_user || fdb->is_local)
+			break;
+		if (memcmp(priv->mac_addr, (u8 *)fdb->addr, ETH_ALEN) == 0)
+			port = HOST_PORT_NUM;
+
+		cpsw_ale_add_ucast(cpsw->ale, (u8 *)fdb->addr, port,
+				   fdb->vid ? ALE_VLAN : 0, fdb->vid);
+		cpsw_fdb_offload_notify(priv->ndev, fdb);
+		break;
+	case SWITCHDEV_FDB_DEL_TO_DEVICE:
+		fdb = &switchdev_work->fdb_info;
+
+		dev_dbg(cpsw->dev, "cpsw_fdb_del: MACID = %pM vid = %u flags = %u %u -- port %d\n",
+			fdb->addr, fdb->vid, fdb->added_by_user,
+			fdb->offloaded, port);
+
+		if (!fdb->added_by_user || fdb->is_local)
+			break;
+		if (memcmp(priv->mac_addr, (u8 *)fdb->addr, ETH_ALEN) == 0)
+			port = HOST_PORT_NUM;
+
+		cpsw_ale_del_ucast(cpsw->ale, (u8 *)fdb->addr, port,
+				   fdb->vid ? ALE_VLAN : 0, fdb->vid);
+		break;
+	default:
+		break;
+	}
+	rtnl_unlock();
+
+	kfree(switchdev_work->fdb_info.addr);
+	kfree(switchdev_work);
+	dev_put(priv->ndev);
+}
+
+/* called under rcu_read_lock() */
+static int cpsw_switchdev_event(struct notifier_block *unused,
+				unsigned long event, void *ptr)
+{
+	struct net_device *ndev = switchdev_notifier_info_to_dev(ptr);
+	struct switchdev_notifier_fdb_info *fdb_info = ptr;
+	struct cpsw_switchdev_event_work *switchdev_work;
+	struct cpsw_priv *priv = netdev_priv(ndev);
+	int err;
+
+	if (event == SWITCHDEV_PORT_ATTR_SET) {
+		err = switchdev_handle_port_attr_set(ndev, ptr,
+						     cpsw_port_dev_check,
+						     cpsw_port_attr_set);
+		return notifier_from_errno(err);
+	}
+
+	if (!cpsw_port_dev_check(ndev))
+		return NOTIFY_DONE;
+
+	switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC);
+	if (WARN_ON(!switchdev_work))
+		return NOTIFY_BAD;
+
+	INIT_WORK(&switchdev_work->work, cpsw_switchdev_event_work);
+	switchdev_work->priv = priv;
+	switchdev_work->event = event;
+
+	switch (event) {
+	case SWITCHDEV_FDB_ADD_TO_DEVICE:
+	case SWITCHDEV_FDB_DEL_TO_DEVICE:
+		memcpy(&switchdev_work->fdb_info, ptr,
+		       sizeof(switchdev_work->fdb_info));
+		switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC);
+		if (!switchdev_work->fdb_info.addr)
+			goto err_addr_alloc;
+		ether_addr_copy((u8 *)switchdev_work->fdb_info.addr,
+				fdb_info->addr);
+		dev_hold(ndev);
+		break;
+	default:
+		kfree(switchdev_work);
+		return NOTIFY_DONE;
+	}
+
+	queue_work(system_long_wq, &switchdev_work->work);
+
+	return NOTIFY_DONE;
+
+err_addr_alloc:
+	kfree(switchdev_work);
+	return NOTIFY_BAD;
+}
+
+static struct notifier_block cpsw_switchdev_notifier = {
+	.notifier_call = cpsw_switchdev_event,
+};
+
+static int cpsw_switchdev_blocking_event(struct notifier_block *unused,
+					 unsigned long event, void *ptr)
+{
+	struct net_device *dev = switchdev_notifier_info_to_dev(ptr);
+	int err;
+
+	switch (event) {
+	case SWITCHDEV_PORT_OBJ_ADD:
+		err = switchdev_handle_port_obj_add(dev, ptr,
+						    cpsw_port_dev_check,
+						    cpsw_port_obj_add);
+		return notifier_from_errno(err);
+	case SWITCHDEV_PORT_OBJ_DEL:
+		err = switchdev_handle_port_obj_del(dev, ptr,
+						    cpsw_port_dev_check,
+						    cpsw_port_obj_del);
+		return notifier_from_errno(err);
+	case SWITCHDEV_PORT_ATTR_SET:
+		err = switchdev_handle_port_attr_set(dev, ptr,
+						     cpsw_port_dev_check,
+						     cpsw_port_attr_set);
+		return notifier_from_errno(err);
+	default:
+		break;
+	}
+
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block cpsw_switchdev_bl_notifier = {
+	.notifier_call = cpsw_switchdev_blocking_event,
+};
+
+int cpsw_switchdev_register_notifiers(struct cpsw_common *cpsw)
+{
+	int ret = 0;
+
+	ret = register_switchdev_notifier(&cpsw_switchdev_notifier);
+	if (ret) {
+		dev_err(cpsw->dev, "register switchdev notifier fail ret:%d\n",
+			ret);
+		return ret;
+	}
+
+	ret = register_switchdev_blocking_notifier(&cpsw_switchdev_bl_notifier);
+	if (ret) {
+		dev_err(cpsw->dev, "register switchdev blocking notifier ret:%d\n",
+			ret);
+		unregister_switchdev_notifier(&cpsw_switchdev_notifier);
+	}
+
+	return ret;
+}
+
+void cpsw_switchdev_unregister_notifiers(struct cpsw_common *cpsw)
+{
+	unregister_switchdev_blocking_notifier(&cpsw_switchdev_bl_notifier);
+	unregister_switchdev_notifier(&cpsw_switchdev_notifier);
+}