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, 714 insertions, 0 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_eswitch.c b/drivers/net/ethernet/intel/ice/ice_eswitch.c
new file mode 100644
index 000000000..f6dd3f8fd
--- /dev/null
+++ b/drivers/net/ethernet/intel/ice/ice_eswitch.c
@@ -0,0 +1,714 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (C) 2019-2021, Intel Corporation. */
+
+#include "ice.h"
+#include "ice_lib.h"
+#include "ice_eswitch.h"
+#include "ice_fltr.h"
+#include "ice_repr.h"
+#include "ice_devlink.h"
+#include "ice_tc_lib.h"
+
+/**
+ * ice_eswitch_add_vf_mac_rule - add adv rule with VF's MAC
+ * @pf: pointer to PF struct
+ * @vf: pointer to VF struct
+ * @mac: VF's MAC address
+ *
+ * This function adds advanced rule that forwards packets with
+ * VF's MAC address (src MAC) to the corresponding switchdev ctrl VSI queue.
+ */
+int
+ice_eswitch_add_vf_mac_rule(struct ice_pf *pf, struct ice_vf *vf, const u8 *mac)
+{
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+	struct ice_adv_rule_info rule_info = { 0 };
+	struct ice_adv_lkup_elem *list;
+	struct ice_hw *hw = &pf->hw;
+	const u16 lkups_cnt = 1;
+	int err;
+
+	list = kcalloc(lkups_cnt, sizeof(*list), GFP_ATOMIC);
+	if (!list)
+		return -ENOMEM;
+
+	list[0].type = ICE_MAC_OFOS;
+	ether_addr_copy(list[0].h_u.eth_hdr.src_addr, mac);
+	eth_broadcast_addr(list[0].m_u.eth_hdr.src_addr);
+
+	rule_info.sw_act.flag |= ICE_FLTR_TX;
+	rule_info.sw_act.vsi_handle = ctrl_vsi->idx;
+	rule_info.sw_act.fltr_act = ICE_FWD_TO_Q;
+	rule_info.rx = false;
+	rule_info.sw_act.fwd_id.q_id = hw->func_caps.common_cap.rxq_first_id +
+				       ctrl_vsi->rxq_map[vf->vf_id];
+	rule_info.flags_info.act |= ICE_SINGLE_ACT_LB_ENABLE;
+	rule_info.flags_info.act_valid = true;
+	rule_info.tun_type = ICE_SW_TUN_AND_NON_TUN;
+
+	err = ice_add_adv_rule(hw, list, lkups_cnt, &rule_info,
+			       vf->repr->mac_rule);
+	if (err)
+		dev_err(ice_pf_to_dev(pf), "Unable to add VF mac rule in switchdev mode for VF %d",
+			vf->vf_id);
+	else
+		vf->repr->rule_added = true;
+
+	kfree(list);
+	return err;
+}
+
+/**
+ * ice_eswitch_replay_vf_mac_rule - replay adv rule with VF's MAC
+ * @vf: pointer to vF struct
+ *
+ * This function replays VF's MAC rule after reset.
+ */
+void ice_eswitch_replay_vf_mac_rule(struct ice_vf *vf)
+{
+	int err;
+
+	if (!ice_is_switchdev_running(vf->pf))
+		return;
+
+	if (is_valid_ether_addr(vf->hw_lan_addr)) {
+		err = ice_eswitch_add_vf_mac_rule(vf->pf, vf,
+						  vf->hw_lan_addr);
+		if (err) {
+			dev_err(ice_pf_to_dev(vf->pf), "Failed to add MAC %pM for VF %d\n, error %d\n",
+				vf->hw_lan_addr, vf->vf_id, err);
+			return;
+		}
+		vf->num_mac++;
+
+		ether_addr_copy(vf->dev_lan_addr, vf->hw_lan_addr);
+	}
+}
+
+/**
+ * ice_eswitch_del_vf_mac_rule - delete adv rule with VF's MAC
+ * @vf: pointer to the VF struct
+ *
+ * Delete the advanced rule that was used to forward packets with the VF's MAC
+ * address (src MAC) to the corresponding switchdev ctrl VSI queue.
+ */
+void ice_eswitch_del_vf_mac_rule(struct ice_vf *vf)
+{
+	if (!ice_is_switchdev_running(vf->pf))
+		return;
+
+	if (!vf->repr->rule_added)
+		return;
+
+	ice_rem_adv_rule_by_id(&vf->pf->hw, vf->repr->mac_rule);
+	vf->repr->rule_added = false;
+}
+
+/**
+ * ice_eswitch_setup_env - configure switchdev HW filters
+ * @pf: pointer to PF struct
+ *
+ * This function adds HW filters configuration specific for switchdev
+ * mode.
+ */
+static int ice_eswitch_setup_env(struct ice_pf *pf)
+{
+	struct ice_vsi *uplink_vsi = pf->switchdev.uplink_vsi;
+	struct net_device *uplink_netdev = uplink_vsi->netdev;
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+	struct ice_vsi_vlan_ops *vlan_ops;
+	bool rule_added = false;
+
+	vlan_ops = ice_get_compat_vsi_vlan_ops(ctrl_vsi);
+	if (vlan_ops->dis_stripping(ctrl_vsi))
+		return -ENODEV;
+
+	ice_remove_vsi_fltr(&pf->hw, uplink_vsi->idx);
+
+	netif_addr_lock_bh(uplink_netdev);
+	__dev_uc_unsync(uplink_netdev, NULL);
+	__dev_mc_unsync(uplink_netdev, NULL);
+	netif_addr_unlock_bh(uplink_netdev);
+
+	if (ice_vsi_add_vlan_zero(uplink_vsi))
+		goto err_def_rx;
+
+	if (!ice_is_dflt_vsi_in_use(uplink_vsi->port_info)) {
+		if (ice_set_dflt_vsi(uplink_vsi))
+			goto err_def_rx;
+		rule_added = true;
+	}
+
+	if (ice_vsi_update_security(uplink_vsi, ice_vsi_ctx_set_allow_override))
+		goto err_override_uplink;
+
+	if (ice_vsi_update_security(ctrl_vsi, ice_vsi_ctx_set_allow_override))
+		goto err_override_control;
+
+	return 0;
+
+err_override_control:
+	ice_vsi_update_security(uplink_vsi, ice_vsi_ctx_clear_allow_override);
+err_override_uplink:
+	if (rule_added)
+		ice_clear_dflt_vsi(uplink_vsi);
+err_def_rx:
+	ice_fltr_add_mac_and_broadcast(uplink_vsi,
+				       uplink_vsi->port_info->mac.perm_addr,
+				       ICE_FWD_TO_VSI);
+	return -ENODEV;
+}
+
+/**
+ * ice_eswitch_remap_rings_to_vectors - reconfigure rings of switchdev ctrl VSI
+ * @pf: pointer to PF struct
+ *
+ * In switchdev number of allocated Tx/Rx rings is equal.
+ *
+ * This function fills q_vectors structures associated with representor and
+ * move each ring pairs to port representor netdevs. Each port representor
+ * will have dedicated 1 Tx/Rx ring pair, so number of rings pair is equal to
+ * number of VFs.
+ */
+static void ice_eswitch_remap_rings_to_vectors(struct ice_pf *pf)
+{
+	struct ice_vsi *vsi = pf->switchdev.control_vsi;
+	int q_id;
+
+	ice_for_each_txq(vsi, q_id) {
+		struct ice_q_vector *q_vector;
+		struct ice_tx_ring *tx_ring;
+		struct ice_rx_ring *rx_ring;
+		struct ice_repr *repr;
+		struct ice_vf *vf;
+
+		vf = ice_get_vf_by_id(pf, q_id);
+		if (WARN_ON(!vf))
+			continue;
+
+		repr = vf->repr;
+		q_vector = repr->q_vector;
+		tx_ring = vsi->tx_rings[q_id];
+		rx_ring = vsi->rx_rings[q_id];
+
+		q_vector->vsi = vsi;
+		q_vector->reg_idx = vsi->q_vectors[0]->reg_idx;
+
+		q_vector->num_ring_tx = 1;
+		q_vector->tx.tx_ring = tx_ring;
+		tx_ring->q_vector = q_vector;
+		tx_ring->next = NULL;
+		tx_ring->netdev = repr->netdev;
+		/* In switchdev mode, from OS stack perspective, there is only
+		 * one queue for given netdev, so it needs to be indexed as 0.
+		 */
+		tx_ring->q_index = 0;
+
+		q_vector->num_ring_rx = 1;
+		q_vector->rx.rx_ring = rx_ring;
+		rx_ring->q_vector = q_vector;
+		rx_ring->next = NULL;
+		rx_ring->netdev = repr->netdev;
+
+		ice_put_vf(vf);
+	}
+}
+
+/**
+ * ice_eswitch_release_reprs - clear PR VSIs configuration
+ * @pf: poiner to PF struct
+ * @ctrl_vsi: pointer to switchdev control VSI
+ */
+static void
+ice_eswitch_release_reprs(struct ice_pf *pf, struct ice_vsi *ctrl_vsi)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	ice_for_each_vf(pf, bkt, vf) {
+		struct ice_vsi *vsi = vf->repr->src_vsi;
+
+		/* Skip VFs that aren't configured */
+		if (!vf->repr->dst)
+			continue;
+
+		ice_vsi_update_security(vsi, ice_vsi_ctx_set_antispoof);
+		metadata_dst_free(vf->repr->dst);
+		vf->repr->dst = NULL;
+		ice_fltr_add_mac_and_broadcast(vsi, vf->hw_lan_addr,
+					       ICE_FWD_TO_VSI);
+
+		netif_napi_del(&vf->repr->q_vector->napi);
+	}
+}
+
+/**
+ * ice_eswitch_setup_reprs - configure port reprs to run in switchdev mode
+ * @pf: pointer to PF struct
+ */
+static int ice_eswitch_setup_reprs(struct ice_pf *pf)
+{
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+	int max_vsi_num = 0;
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	ice_for_each_vf(pf, bkt, vf) {
+		struct ice_vsi *vsi = vf->repr->src_vsi;
+
+		ice_remove_vsi_fltr(&pf->hw, vsi->idx);
+		vf->repr->dst = metadata_dst_alloc(0, METADATA_HW_PORT_MUX,
+						   GFP_KERNEL);
+		if (!vf->repr->dst) {
+			ice_fltr_add_mac_and_broadcast(vsi,
+						       vf->hw_lan_addr,
+						       ICE_FWD_TO_VSI);
+			goto err;
+		}
+
+		if (ice_vsi_update_security(vsi, ice_vsi_ctx_clear_antispoof)) {
+			ice_fltr_add_mac_and_broadcast(vsi,
+						       vf->hw_lan_addr,
+						       ICE_FWD_TO_VSI);
+			metadata_dst_free(vf->repr->dst);
+			vf->repr->dst = NULL;
+			goto err;
+		}
+
+		if (ice_vsi_add_vlan_zero(vsi)) {
+			ice_fltr_add_mac_and_broadcast(vsi,
+						       vf->hw_lan_addr,
+						       ICE_FWD_TO_VSI);
+			metadata_dst_free(vf->repr->dst);
+			vf->repr->dst = NULL;
+			ice_vsi_update_security(vsi, ice_vsi_ctx_set_antispoof);
+			goto err;
+		}
+
+		if (max_vsi_num < vsi->vsi_num)
+			max_vsi_num = vsi->vsi_num;
+
+		netif_napi_add(vf->repr->netdev, &vf->repr->q_vector->napi,
+			       ice_napi_poll);
+
+		netif_keep_dst(vf->repr->netdev);
+	}
+
+	ice_for_each_vf(pf, bkt, vf) {
+		struct ice_repr *repr = vf->repr;
+		struct ice_vsi *vsi = repr->src_vsi;
+		struct metadata_dst *dst;
+
+		dst = repr->dst;
+		dst->u.port_info.port_id = vsi->vsi_num;
+		dst->u.port_info.lower_dev = repr->netdev;
+		ice_repr_set_traffic_vsi(repr, ctrl_vsi);
+	}
+
+	return 0;
+
+err:
+	ice_eswitch_release_reprs(pf, ctrl_vsi);
+
+	return -ENODEV;
+}
+
+/**
+ * ice_eswitch_update_repr - reconfigure VF port representor
+ * @vsi: VF VSI for which port representor is configured
+ */
+void ice_eswitch_update_repr(struct ice_vsi *vsi)
+{
+	struct ice_pf *pf = vsi->back;
+	struct ice_repr *repr;
+	struct ice_vf *vf;
+	int ret;
+
+	if (!ice_is_switchdev_running(pf))
+		return;
+
+	vf = vsi->vf;
+	repr = vf->repr;
+	repr->src_vsi = vsi;
+	repr->dst->u.port_info.port_id = vsi->vsi_num;
+
+	ret = ice_vsi_update_security(vsi, ice_vsi_ctx_clear_antispoof);
+	if (ret) {
+		ice_fltr_add_mac_and_broadcast(vsi, vf->hw_lan_addr, ICE_FWD_TO_VSI);
+		dev_err(ice_pf_to_dev(pf), "Failed to update VF %d port representor",
+			vsi->vf->vf_id);
+	}
+}
+
+/**
+ * ice_eswitch_port_start_xmit - callback for packets transmit
+ * @skb: send buffer
+ * @netdev: network interface device structure
+ *
+ * Returns NETDEV_TX_OK if sent, else an error code
+ */
+netdev_tx_t
+ice_eswitch_port_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+{
+	struct ice_netdev_priv *np;
+	struct ice_repr *repr;
+	struct ice_vsi *vsi;
+
+	np = netdev_priv(netdev);
+	vsi = np->vsi;
+
+	if (ice_is_reset_in_progress(vsi->back->state) ||
+	    test_bit(ICE_VF_DIS, vsi->back->state))
+		return NETDEV_TX_BUSY;
+
+	repr = ice_netdev_to_repr(netdev);
+	skb_dst_drop(skb);
+	dst_hold((struct dst_entry *)repr->dst);
+	skb_dst_set(skb, (struct dst_entry *)repr->dst);
+	skb->queue_mapping = repr->vf->vf_id;
+
+	return ice_start_xmit(skb, netdev);
+}
+
+/**
+ * ice_eswitch_set_target_vsi - set switchdev context in Tx context descriptor
+ * @skb: pointer to send buffer
+ * @off: pointer to offload struct
+ */
+void
+ice_eswitch_set_target_vsi(struct sk_buff *skb,
+			   struct ice_tx_offload_params *off)
+{
+	struct metadata_dst *dst = skb_metadata_dst(skb);
+	u64 cd_cmd, dst_vsi;
+
+	if (!dst) {
+		cd_cmd = ICE_TX_CTX_DESC_SWTCH_UPLINK << ICE_TXD_CTX_QW1_CMD_S;
+		off->cd_qw1 |= (cd_cmd | ICE_TX_DESC_DTYPE_CTX);
+	} else {
+		cd_cmd = ICE_TX_CTX_DESC_SWTCH_VSI << ICE_TXD_CTX_QW1_CMD_S;
+		dst_vsi = ((u64)dst->u.port_info.port_id <<
+			   ICE_TXD_CTX_QW1_VSI_S) & ICE_TXD_CTX_QW1_VSI_M;
+		off->cd_qw1 = cd_cmd | dst_vsi | ICE_TX_DESC_DTYPE_CTX;
+	}
+}
+
+/**
+ * ice_eswitch_release_env - clear switchdev HW filters
+ * @pf: pointer to PF struct
+ *
+ * This function removes HW filters configuration specific for switchdev
+ * mode and restores default legacy mode settings.
+ */
+static void ice_eswitch_release_env(struct ice_pf *pf)
+{
+	struct ice_vsi *uplink_vsi = pf->switchdev.uplink_vsi;
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+
+	ice_vsi_update_security(ctrl_vsi, ice_vsi_ctx_clear_allow_override);
+	ice_vsi_update_security(uplink_vsi, ice_vsi_ctx_clear_allow_override);
+	ice_clear_dflt_vsi(uplink_vsi);
+	ice_fltr_add_mac_and_broadcast(uplink_vsi,
+				       uplink_vsi->port_info->mac.perm_addr,
+				       ICE_FWD_TO_VSI);
+}
+
+/**
+ * ice_eswitch_vsi_setup - configure switchdev control VSI
+ * @pf: pointer to PF structure
+ * @pi: pointer to port_info structure
+ */
+static struct ice_vsi *
+ice_eswitch_vsi_setup(struct ice_pf *pf, struct ice_port_info *pi)
+{
+	struct ice_vsi_cfg_params params = {};
+
+	params.type = ICE_VSI_SWITCHDEV_CTRL;
+	params.pi = pi;
+	params.flags = ICE_VSI_FLAG_INIT;
+
+	return ice_vsi_setup(pf, &params);
+}
+
+/**
+ * ice_eswitch_napi_del - remove NAPI handle for all port representors
+ * @pf: pointer to PF structure
+ */
+static void ice_eswitch_napi_del(struct ice_pf *pf)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	ice_for_each_vf(pf, bkt, vf)
+		netif_napi_del(&vf->repr->q_vector->napi);
+}
+
+/**
+ * ice_eswitch_napi_enable - enable NAPI for all port representors
+ * @pf: pointer to PF structure
+ */
+static void ice_eswitch_napi_enable(struct ice_pf *pf)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	ice_for_each_vf(pf, bkt, vf)
+		napi_enable(&vf->repr->q_vector->napi);
+}
+
+/**
+ * ice_eswitch_napi_disable - disable NAPI for all port representors
+ * @pf: pointer to PF structure
+ */
+static void ice_eswitch_napi_disable(struct ice_pf *pf)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	ice_for_each_vf(pf, bkt, vf)
+		napi_disable(&vf->repr->q_vector->napi);
+}
+
+/**
+ * ice_eswitch_enable_switchdev - configure eswitch in switchdev mode
+ * @pf: pointer to PF structure
+ */
+static int ice_eswitch_enable_switchdev(struct ice_pf *pf)
+{
+	struct ice_vsi *ctrl_vsi;
+
+	pf->switchdev.control_vsi = ice_eswitch_vsi_setup(pf, pf->hw.port_info);
+	if (!pf->switchdev.control_vsi)
+		return -ENODEV;
+
+	ctrl_vsi = pf->switchdev.control_vsi;
+	pf->switchdev.uplink_vsi = ice_get_main_vsi(pf);
+	if (!pf->switchdev.uplink_vsi)
+		goto err_vsi;
+
+	if (ice_eswitch_setup_env(pf))
+		goto err_vsi;
+
+	if (ice_repr_add_for_all_vfs(pf))
+		goto err_repr_add;
+
+	if (ice_eswitch_setup_reprs(pf))
+		goto err_setup_reprs;
+
+	ice_eswitch_remap_rings_to_vectors(pf);
+
+	if (ice_vsi_open(ctrl_vsi))
+		goto err_setup_reprs;
+
+	ice_eswitch_napi_enable(pf);
+
+	return 0;
+
+err_setup_reprs:
+	ice_repr_rem_from_all_vfs(pf);
+err_repr_add:
+	ice_eswitch_release_env(pf);
+err_vsi:
+	ice_vsi_release(ctrl_vsi);
+	return -ENODEV;
+}
+
+/**
+ * ice_eswitch_disable_switchdev - disable switchdev resources
+ * @pf: pointer to PF structure
+ */
+static void ice_eswitch_disable_switchdev(struct ice_pf *pf)
+{
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+
+	ice_eswitch_napi_disable(pf);
+	ice_eswitch_release_env(pf);
+	ice_rem_adv_rule_for_vsi(&pf->hw, ctrl_vsi->idx);
+	ice_eswitch_release_reprs(pf, ctrl_vsi);
+	ice_vsi_release(ctrl_vsi);
+	ice_repr_rem_from_all_vfs(pf);
+}
+
+/**
+ * ice_eswitch_mode_set - set new eswitch mode
+ * @devlink: pointer to devlink structure
+ * @mode: eswitch mode to switch to
+ * @extack: pointer to extack structure
+ */
+int
+ice_eswitch_mode_set(struct devlink *devlink, u16 mode,
+		     struct netlink_ext_ack *extack)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	if (pf->eswitch_mode == mode)
+		return 0;
+
+	if (ice_has_vfs(pf)) {
+		dev_info(ice_pf_to_dev(pf), "Changing eswitch mode is allowed only if there is no VFs created");
+		NL_SET_ERR_MSG_MOD(extack, "Changing eswitch mode is allowed only if there is no VFs created");
+		return -EOPNOTSUPP;
+	}
+
+	switch (mode) {
+	case DEVLINK_ESWITCH_MODE_LEGACY:
+		dev_info(ice_pf_to_dev(pf), "PF %d changed eswitch mode to legacy",
+			 pf->hw.pf_id);
+		NL_SET_ERR_MSG_MOD(extack, "Changed eswitch mode to legacy");
+		break;
+	case DEVLINK_ESWITCH_MODE_SWITCHDEV:
+	{
+		dev_info(ice_pf_to_dev(pf), "PF %d changed eswitch mode to switchdev",
+			 pf->hw.pf_id);
+		NL_SET_ERR_MSG_MOD(extack, "Changed eswitch mode to switchdev");
+		break;
+	}
+	default:
+		NL_SET_ERR_MSG_MOD(extack, "Unknown eswitch mode");
+		return -EINVAL;
+	}
+
+	pf->eswitch_mode = mode;
+	return 0;
+}
+
+/**
+ * ice_eswitch_mode_get - get current eswitch mode
+ * @devlink: pointer to devlink structure
+ * @mode: output parameter for current eswitch mode
+ */
+int ice_eswitch_mode_get(struct devlink *devlink, u16 *mode)
+{
+	struct ice_pf *pf = devlink_priv(devlink);
+
+	*mode = pf->eswitch_mode;
+	return 0;
+}
+
+/**
+ * ice_is_eswitch_mode_switchdev - check if eswitch mode is set to switchdev
+ * @pf: pointer to PF structure
+ *
+ * Returns true if eswitch mode is set to DEVLINK_ESWITCH_MODE_SWITCHDEV,
+ * false otherwise.
+ */
+bool ice_is_eswitch_mode_switchdev(struct ice_pf *pf)
+{
+	return pf->eswitch_mode == DEVLINK_ESWITCH_MODE_SWITCHDEV;
+}
+
+/**
+ * ice_eswitch_release - cleanup eswitch
+ * @pf: pointer to PF structure
+ */
+void ice_eswitch_release(struct ice_pf *pf)
+{
+	if (pf->eswitch_mode == DEVLINK_ESWITCH_MODE_LEGACY)
+		return;
+
+	ice_eswitch_disable_switchdev(pf);
+	pf->switchdev.is_running = false;
+}
+
+/**
+ * ice_eswitch_configure - configure eswitch
+ * @pf: pointer to PF structure
+ */
+int ice_eswitch_configure(struct ice_pf *pf)
+{
+	int status;
+
+	if (pf->eswitch_mode == DEVLINK_ESWITCH_MODE_LEGACY || pf->switchdev.is_running)
+		return 0;
+
+	status = ice_eswitch_enable_switchdev(pf);
+	if (status)
+		return status;
+
+	pf->switchdev.is_running = true;
+	return 0;
+}
+
+/**
+ * ice_eswitch_start_all_tx_queues - start Tx queues of all port representors
+ * @pf: pointer to PF structure
+ */
+static void ice_eswitch_start_all_tx_queues(struct ice_pf *pf)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	if (test_bit(ICE_DOWN, pf->state))
+		return;
+
+	ice_for_each_vf(pf, bkt, vf) {
+		if (vf->repr)
+			ice_repr_start_tx_queues(vf->repr);
+	}
+}
+
+/**
+ * ice_eswitch_stop_all_tx_queues - stop Tx queues of all port representors
+ * @pf: pointer to PF structure
+ */
+void ice_eswitch_stop_all_tx_queues(struct ice_pf *pf)
+{
+	struct ice_vf *vf;
+	unsigned int bkt;
+
+	lockdep_assert_held(&pf->vfs.table_lock);
+
+	if (test_bit(ICE_DOWN, pf->state))
+		return;
+
+	ice_for_each_vf(pf, bkt, vf) {
+		if (vf->repr)
+			ice_repr_stop_tx_queues(vf->repr);
+	}
+}
+
+/**
+ * ice_eswitch_rebuild - rebuild eswitch
+ * @pf: pointer to PF structure
+ */
+int ice_eswitch_rebuild(struct ice_pf *pf)
+{
+	struct ice_vsi *ctrl_vsi = pf->switchdev.control_vsi;
+	int status;
+
+	ice_eswitch_napi_disable(pf);
+	ice_eswitch_napi_del(pf);
+
+	status = ice_eswitch_setup_env(pf);
+	if (status)
+		return status;
+
+	status = ice_eswitch_setup_reprs(pf);
+	if (status)
+		return status;
+
+	ice_eswitch_remap_rings_to_vectors(pf);
+
+	ice_replay_tc_fltrs(pf);
+
+	status = ice_vsi_open(ctrl_vsi);
+	if (status)
+		return status;
+
+	ice_eswitch_napi_enable(pf);
+	ice_eswitch_start_all_tx_queues(pf);
+
+	return 0;
+}