Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster

Pull networking updates from Jakub Kicinski:
 "Not much excitement - a handful of large patchsets (devmem among them)
  did not make it in time.

  Core & protocols:

   - Use local_lock in addition to local_bh_disable() to protect per-CPU
     resources in networking, a step closer for local_bh_disable() not
     to act as a big lock on PREEMPT_RT

   - Use flex array for netdevice priv area, ensure its cache alignment

   - Add a sysctl knob to allow user to specify a default rto_min at
     socket init time. Bit of a big hammer but multiple companies were
     independently carrying such patch downstream so clearly it's useful

   - Support scheduling transmission of packets based on CLOCK_TAI

   - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
     off using cpusets

   - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

   - Allow configuration of multipath hash seed, to both allow
     synchronizing hashing of two routers, and preventing partial
     accidental sync

   - Improve TCP compliance with RFC 9293 for simultaneous connect()

   - Support sending NAT keepalives in IPsec ESP in UDP states.
     Userspace IKE daemon had to do this before, but the kernel can
     better keep track of it

   - Support sending supervision HSR frames with MAC addresses stored in
     ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

   - Introduce IPPROTO_SMC for selecting SMC when socket is created

   - Allow UDP GSO transmit from devices with no checksum offload

   - openvswitch: add packet sampling via psample, separating the
     sampled traffic from "upcall" packets sent to user space for
     forwarding

   - nf_tables: shrink memory consumption for transaction objects

  Things we sprinkled into general kernel code:

   - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
     QCA6390)           [ Already merged separately - Linus ]

   - Add IRQ information in sysfs for auxiliary bus

   - Introduce guard definition for local_lock

   - Add aligned flavor of __cacheline_group_{begin, end}() markings for
     grouping fields in structures

  BPF:

   - Notify user space (via epoll) when a struct_ops object is getting
     detached/unregistered

   - Add new kfuncs for a generic, open-coded bits iterator

   - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
     bpf_list_head

   - Support resilient split BTF which cuts down on duplication and
     makes BTF as compact as possible WRT BTF from modules

   - Add support for dumping kfunc prototypes from BTF which enables
     both detecting as well as dumping compilable prototypes for kfuncs

   - riscv64 BPF JIT improvements in particular to add 12-argument
     support for BPF trampolines and to utilize bpf_prog_pack for the
     latter

   - Add the capability to offload the netfilter flowtable in XDP layer
     through kfuncs

  Driver API:

   - Allow users to configure IRQ tresholds between which automatic IRQ
     moderation can choose

   - Expand Power Sourcing (PoE) status with power, class and failure
     reason. Support setting power limits

   - Track additional RSS contexts in the core, make sure configuration
     changes don't break them

   - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
     ESP data paths

   - Support updating firmware on SFP modules

  Tests and tooling:

   - mptcp: use net/lib.sh to manage netns

   - TCP-AO and TCP-MD5: replace debug prints used by tests with
     tracepoints

   - openvswitch: make test self-contained (don't depend on OvS CLI
     tools)

  Drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - increase the max total outstanding PTP TX packets to 4
         - add timestamping statistics support
         - implement netdev_queue_mgmt_ops
         - support new RSS context API
      - Intel (100G, ice, idpf):
         - implement FEC statistics and dumping signal quality indicators
         - support E825C products (with 56Gbps PHYs)
      - nVidia/Mellanox:
         - support HW-GRO
         - mlx4/mlx5: support per-queue statistics via netlink
         - obey the max number of EQs setting in sub-functions
      - AMD/Solarflare:
         - support new RSS context API
      - AMD/Pensando:
         - ionic: rework fix for doorbell miss to lower overhead and
           skip it on new HW
      - Wangxun:
         - txgbe: support Flow Director perfect filters

   - Ethernet NICs consumer, embedded and virtual:
      - Add driver for Tehuti Networks TN40xx chips
      - Add driver for Meta's internal NIC chips
      - Add driver for Ethernet MAC on Airoha EN7581 SoCs
      - Add driver for Renesas Ethernet-TSN devices
      - Google cloud vNIC:
         - flow steering support
      - Microsoft vNIC:
         - support page sizes other than 4KB on ARM64
      - vmware vNIC:
         - support latency measurement (update to version 9)
      - VirtIO net:
         - support for Byte Queue Limits
         - support configuring thresholds for automatic IRQ moderation
         - support for AF_XDP Rx zero-copy
      - Synopsys (stmmac):
         - support for STM32MP13 SoC
         - let platforms select the right PCS implementation
      - TI:
         - icssg-prueth: add multicast filtering support
         - icssg-prueth: enable PTP timestamping and PPS
      - Renesas:
         - ravb: improve Rx performance 30-400% by using page pool,
           theaded NAPI and timer-based IRQ coalescing
         - ravb: add MII support for R-Car V4M
      - Cadence (macb):
         - macb: add ARP support to Wake-On-LAN
      - Cortina:
         - use phylib for RX and TX pause configuration

   - Ethernet switches:
      - nVidia/Mellanox:
         - support configuration of multipath hash seed
         - report more accurate max MTU
         - use page_pool to improve Rx performance
      - MediaTek:
         - mt7530: add support for bridge port isolation
      - Qualcomm:
         - qca8k: add support for bridge port isolation
      - Microchip:
         - lan9371/2: add 100BaseTX PHY support
      - NXP:
         - vsc73xx: implement VLAN operations

   - Ethernet PHYs:
      - aquantia: enable support for aqr115c
      - aquantia: add support for PHY LEDs
      - realtek: add support for rtl8224 2.5Gbps PHY
      - xpcs: add memory-mapped device support
      - add BroadR-Reach link mode and support in Broadcom's PHY driver

   - CAN:
      - add document for ISO 15765-2 protocol support
      - mcp251xfd: workaround for erratum DS80000789E, use timestamps to
        catch when device returns incorrect FIFO status

   - WiFi:
      - mac80211/cfg80211:
         - parse Transmit Power Envelope (TPE) data in mac80211 instead
           of in drivers
         - improvements for 6 GHz regulatory flexibility
         - multi-link improvements
         - support multiple radios per wiphy
         - remove DEAUTH_NEED_MGD_TX_PREP flag
      - Intel (iwlwifi):
         - bump FW API to 91 for BZ/SC devices
         - report 64-bit radiotap timestamp
         - enable P2P low latency by default
         - handle Transmit Power Envelope (TPE) advertised by AP
         - remove support for older FW for new devices
         - fast resume (keeping the device configured)
         - mvm: re-enable Multi-Link Operation (MLO)
         - aggregation (A-MSDU) optimizations
      - MediaTek (mt76):
         - mt7925 Multi-Link Operation (MLO) support
      - Qualcomm (ath10k):
         - LED support for various chipsets
      - Qualcomm (ath12k):
         - remove unsupported Tx monitor handling
         - support channel 2 in 6 GHz band
         - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
         - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
           Advertisements (EMA)
         - support dynamic VLAN
         - add panic handler for resetting the firmware state
         - DebugFS support for datapath statistics
         - WCN7850: support for Wake on WLAN
      - Microchip (wilc1000):
         - read MAC address during probe to make it visible to user space
         - suspend/resume improvements
      - TI (wl18xx):
         - support newer firmware versions
      - RealTek (rtw89):
         - preparation for RTL8852BE-VT support
         - Wake on WLAN support for WiFi 6 chips
         - 36-bit PCI DMA support
      - RealTek (rtlwifi):
         - RTL8192DU support
      - Broadcom (brcmfmac):
         - Management Frame Protection support (to enable WPA3)

   - Bluetooth:
      - qualcomm: use the power sequencer for QCA6390
      - btusb: mediatek: add ISO data transmission functions
      - hci_bcm4377: add BCM4388 support
      - btintel: add support for BlazarU core
      - btintel: add support for Whale Peak2
      - btnxpuart: add support for AW693 A1 chipset
      - btnxpuart: add support for IW615 chipset
      - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
  eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
  tcp: Replace strncpy() with strscpy()
  wifi: ath12k: fix build vs old compiler
  tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
  eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
  eth: fbnic: Add L2 address programming
  eth: fbnic: Add basic Rx handling
  eth: fbnic: Add basic Tx handling
  eth: fbnic: Add link detection
  eth: fbnic: Add initial messaging to notify FW of our presence
  eth: fbnic: Implement Rx queue alloc/start/stop/free
  eth: fbnic: Implement Tx queue alloc/start/stop/free
  eth: fbnic: Allocate a netdevice and napi vectors with queues
  eth: fbnic: Add FW communication mechanism
  eth: fbnic: Add message parsing for FW messages
  eth: fbnic: Add register init to set PCIe/Ethernet device config
  eth: fbnic: Allocate core device specific structures and devlink interface
  eth: fbnic: Add scaffolding for Meta's NIC driver
  PCI: Add Meta Platforms vendor ID
  net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
  ...

1 files changed, 441 insertions, 3 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 62c8205fceba..8c990c976132 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -463,7 +463,354 @@ ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 
 static int ice_get_regs_len(struct net_device __always_unused *netdev)
 {
-	return sizeof(ice_regs_dump_list);
+	return (sizeof(ice_regs_dump_list) +
+		sizeof(struct ice_regdump_to_ethtool));
+}
+
+/**
+ * ice_ethtool_get_maxspeed - Get the max speed for given lport
+ * @hw: pointer to the HW struct
+ * @lport: logical port for which max speed is requested
+ * @max_speed: return max speed for input lport
+ *
+ * Return: 0 on success, negative on failure.
+ */
+static int ice_ethtool_get_maxspeed(struct ice_hw *hw, u8 lport, u8 *max_speed)
+{
+	struct ice_aqc_get_port_options_elem options[ICE_AQC_PORT_OPT_MAX] = {};
+	bool active_valid = false, pending_valid = true;
+	u8 option_count = ICE_AQC_PORT_OPT_MAX;
+	u8 active_idx = 0, pending_idx = 0;
+	int status;
+
+	status = ice_aq_get_port_options(hw, options, &option_count, lport,
+					 true, &active_idx, &active_valid,
+					 &pending_idx, &pending_valid);
+	if (status)
+		return -EIO;
+	if (!active_valid)
+		return -EINVAL;
+
+	*max_speed = options[active_idx].max_lane_speed & ICE_AQC_PORT_OPT_MAX_LANE_M;
+	return 0;
+}
+
+/**
+ * ice_is_serdes_muxed - returns whether serdes is muxed in hardware
+ * @hw: pointer to the HW struct
+ *
+ * Return: true when serdes is muxed, false when serdes is not muxed.
+ */
+static bool ice_is_serdes_muxed(struct ice_hw *hw)
+{
+	u32 reg_value = rd32(hw, GLGEN_SWITCH_MODE_CONFIG);
+
+	return FIELD_GET(GLGEN_SWITCH_MODE_CONFIG_25X4_QUAD_M, reg_value);
+}
+
+static int ice_map_port_topology_for_sfp(struct ice_port_topology *port_topology,
+					 u8 lport, bool is_muxed)
+{
+	switch (lport) {
+	case 0:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 0;
+		port_topology->primary_serdes_lane = 0;
+		break;
+	case 1:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 0;
+		if (is_muxed)
+			port_topology->primary_serdes_lane = 2;
+		else
+			port_topology->primary_serdes_lane = 4;
+		break;
+	case 2:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 1;
+		port_topology->primary_serdes_lane = 1;
+		break;
+	case 3:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 1;
+		if (is_muxed)
+			port_topology->primary_serdes_lane = 3;
+		else
+			port_topology->primary_serdes_lane = 5;
+		break;
+	case 4:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 2;
+		port_topology->primary_serdes_lane = 2;
+		break;
+	case 5:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 2;
+		port_topology->primary_serdes_lane = 6;
+		break;
+	case 6:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 3;
+		port_topology->primary_serdes_lane = 3;
+		break;
+	case 7:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 3;
+		port_topology->primary_serdes_lane = 7;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ice_map_port_topology_for_qsfp(struct ice_port_topology *port_topology,
+					  u8 lport, bool is_muxed)
+{
+	switch (lport) {
+	case 0:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 0;
+		port_topology->primary_serdes_lane = 0;
+		break;
+	case 1:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 0;
+		if (is_muxed)
+			port_topology->primary_serdes_lane = 2;
+		else
+			port_topology->primary_serdes_lane = 4;
+		break;
+	case 2:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 1;
+		port_topology->primary_serdes_lane = 1;
+		break;
+	case 3:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 1;
+		if (is_muxed)
+			port_topology->primary_serdes_lane = 3;
+		else
+			port_topology->primary_serdes_lane = 5;
+		break;
+	case 4:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 2;
+		port_topology->primary_serdes_lane = 2;
+		break;
+	case 5:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 2;
+		port_topology->primary_serdes_lane = 6;
+		break;
+	case 6:
+		port_topology->pcs_quad_select = 0;
+		port_topology->pcs_port = 3;
+		port_topology->primary_serdes_lane = 3;
+		break;
+	case 7:
+		port_topology->pcs_quad_select = 1;
+		port_topology->pcs_port = 3;
+		port_topology->primary_serdes_lane = 7;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * ice_get_port_topology - returns physical topology like pcsquad, pcsport,
+ *                         serdes number
+ * @hw: pointer to the HW struct
+ * @lport: logical port for which physical info requested
+ * @port_topology: buffer to hold port topology
+ *
+ * Return: 0 on success, negative on failure.
+ */
+static int ice_get_port_topology(struct ice_hw *hw, u8 lport,
+				 struct ice_port_topology *port_topology)
+{
+	struct ice_aqc_get_link_topo cmd = {};
+	u16 node_handle = 0;
+	u8 cage_type = 0;
+	bool is_muxed;
+	int err;
+	u8 ctx;
+
+	ctx = ICE_AQC_LINK_TOPO_NODE_TYPE_CAGE << ICE_AQC_LINK_TOPO_NODE_TYPE_S;
+	ctx |= ICE_AQC_LINK_TOPO_NODE_CTX_PORT << ICE_AQC_LINK_TOPO_NODE_CTX_S;
+	cmd.addr.topo_params.node_type_ctx = ctx;
+
+	err = ice_aq_get_netlist_node(hw, &cmd, &cage_type, &node_handle);
+	if (err)
+		return -EINVAL;
+
+	is_muxed = ice_is_serdes_muxed(hw);
+
+	if (cage_type == 0x11 ||	/* SFP+ */
+	    cage_type == 0x12) {	/* SFP28 */
+		port_topology->serdes_lane_count = 1;
+		err = ice_map_port_topology_for_sfp(port_topology, lport, is_muxed);
+		if (err)
+			return err;
+	} else if (cage_type == 0x13 ||	/* QSFP */
+		   cage_type == 0x14) {	/* QSFP28 */
+		u8 max_speed = 0;
+
+		err = ice_ethtool_get_maxspeed(hw, lport, &max_speed);
+		if (err)
+			return err;
+
+		if (max_speed == ICE_AQC_PORT_OPT_MAX_LANE_100G)
+			port_topology->serdes_lane_count = 4;
+		else if (max_speed == ICE_AQC_PORT_OPT_MAX_LANE_50G)
+			port_topology->serdes_lane_count = 2;
+		else
+			port_topology->serdes_lane_count = 1;
+
+		err = ice_map_port_topology_for_qsfp(port_topology, lport, is_muxed);
+		if (err)
+			return err;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+/**
+ * ice_get_tx_rx_equa - read serdes tx rx equaliser param
+ * @hw: pointer to the HW struct
+ * @serdes_num: represents the serdes number
+ * @ptr: structure to read all serdes parameter for given serdes
+ *
+ * Return: all serdes equalization parameter supported per serdes number
+ */
+static int ice_get_tx_rx_equa(struct ice_hw *hw, u8 serdes_num,
+			      struct ice_serdes_equalization_to_ethtool *ptr)
+{
+	int err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_TX_EQU_PRE1,
+					  ICE_AQC_OP_CODE_TX_EQU, serdes_num,
+					  &ptr->tx_equalization_pre1);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_TX_EQU_PRE3,
+					  ICE_AQC_OP_CODE_TX_EQU, serdes_num,
+					  &ptr->tx_equalization_pre3);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_TX_EQU_ATTEN,
+					  ICE_AQC_OP_CODE_TX_EQU, serdes_num,
+					  &ptr->tx_equalization_atten);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_TX_EQU_POST1,
+					  ICE_AQC_OP_CODE_TX_EQU, serdes_num,
+					  &ptr->tx_equalization_post1);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_TX_EQU_PRE2,
+					  ICE_AQC_OP_CODE_TX_EQU, serdes_num,
+					  &ptr->tx_equalization_pre2);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_PRE2,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_pre2);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_PRE1,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_pre1);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_POST1,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_post1);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_BFLF,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_bflf);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_BFHF,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_bfhf);
+	if (err)
+		return err;
+
+	err = ice_aq_get_phy_equalization(hw, ICE_AQC_RX_EQU_DRATE,
+					  ICE_AQC_OP_CODE_RX_EQU, serdes_num,
+					  &ptr->rx_equalization_drate);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+/**
+ * ice_get_extended_regs - returns FEC correctable, uncorrectable stats per
+ *                         pcsquad, pcsport
+ * @netdev: pointer to net device structure
+ * @p: output buffer to fill requested register dump
+ *
+ * Return: 0 on success, negative on failure.
+ */
+static int ice_get_extended_regs(struct net_device *netdev, void *p)
+{
+	struct ice_netdev_priv *np = netdev_priv(netdev);
+	struct ice_regdump_to_ethtool *ice_prv_regs_buf;
+	struct ice_port_topology port_topology = {};
+	struct ice_port_info *pi;
+	struct ice_pf *pf;
+	struct ice_hw *hw;
+	unsigned int i;
+	int err;
+
+	pf = np->vsi->back;
+	hw = &pf->hw;
+	pi = np->vsi->port_info;
+
+	/* Serdes parameters are not supported if not the PF VSI */
+	if (np->vsi->type != ICE_VSI_PF || !pi)
+		return -EINVAL;
+
+	err = ice_get_port_topology(hw, pi->lport, &port_topology);
+	if (err)
+		return -EINVAL;
+	if (port_topology.serdes_lane_count > 4)
+		return -EINVAL;
+
+	ice_prv_regs_buf = p;
+
+	/* Get serdes equalization parameter for available serdes */
+	for (i = 0; i < port_topology.serdes_lane_count; i++) {
+		u8 serdes_num = 0;
+
+		serdes_num = port_topology.primary_serdes_lane + i;
+		err = ice_get_tx_rx_equa(hw, serdes_num,
+					 &ice_prv_regs_buf->equalization[i]);
+		if (err)
+			return -EINVAL;
+	}
+
+	return 0;
 }
 
 static void
@@ -475,10 +822,12 @@ ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 	u32 *regs_buf = (u32 *)p;
 	unsigned int i;
 
-	regs->version = 1;
+	regs->version = 2;
 
 	for (i = 0; i < ARRAY_SIZE(ice_regs_dump_list); ++i)
 		regs_buf[i] = rd32(hw, ice_regs_dump_list[i]);
+
+	ice_get_extended_regs(netdev, (void *)&regs_buf[i]);
 }
 
 static u32 ice_get_msglevel(struct net_device *netdev)
@@ -3434,7 +3783,7 @@ ice_set_rxfh(struct net_device *netdev, struct ethtool_rxfh_param *rxfh,
 }
 
 static int
-ice_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info)
+ice_get_ts_info(struct net_device *dev, struct kernel_ethtool_ts_info *info)
 {
 	struct ice_pf *pf = ice_netdev_to_pf(dev);
 
@@ -4282,6 +4631,94 @@ ice_get_module_eeprom(struct net_device *netdev,
 	return 0;
 }
 
+/**
+ * ice_get_port_fec_stats - returns FEC correctable, uncorrectable stats per
+ *                          pcsquad, pcsport
+ * @hw: pointer to the HW struct
+ * @pcs_quad: pcsquad for input port
+ * @pcs_port: pcsport for input port
+ * @fec_stats: buffer to hold FEC statistics for given port
+ *
+ * Return: 0 on success, negative on failure.
+ */
+static int ice_get_port_fec_stats(struct ice_hw *hw, u16 pcs_quad, u16 pcs_port,
+				  struct ethtool_fec_stats *fec_stats)
+{
+	u32 fec_uncorr_low_val = 0, fec_uncorr_high_val = 0;
+	u32 fec_corr_low_val = 0, fec_corr_high_val = 0;
+	int err;
+
+	if (pcs_quad > 1 || pcs_port > 3)
+		return -EINVAL;
+
+	err = ice_aq_get_fec_stats(hw, pcs_quad, pcs_port, ICE_FEC_CORR_LOW,
+				   &fec_corr_low_val);
+	if (err)
+		return err;
+
+	err = ice_aq_get_fec_stats(hw, pcs_quad, pcs_port, ICE_FEC_CORR_HIGH,
+				   &fec_corr_high_val);
+	if (err)
+		return err;
+
+	err = ice_aq_get_fec_stats(hw, pcs_quad, pcs_port,
+				   ICE_FEC_UNCORR_LOW,
+				   &fec_uncorr_low_val);
+	if (err)
+		return err;
+
+	err = ice_aq_get_fec_stats(hw, pcs_quad, pcs_port,
+				   ICE_FEC_UNCORR_HIGH,
+				   &fec_uncorr_high_val);
+	if (err)
+		return err;
+
+	fec_stats->uncorrectable_blocks.total = (fec_corr_high_val << 16) +
+						 fec_corr_low_val;
+	fec_stats->corrected_blocks.total = (fec_uncorr_high_val << 16) +
+					     fec_uncorr_low_val;
+	return 0;
+}
+
+/**
+ * ice_get_fec_stats - returns FEC correctable, uncorrectable stats per netdev
+ * @netdev: network interface device structure
+ * @fec_stats: buffer to hold FEC statistics for given port
+ *
+ */
+static void ice_get_fec_stats(struct net_device *netdev,
+			      struct ethtool_fec_stats *fec_stats)
+{
+	struct ice_netdev_priv *np = netdev_priv(netdev);
+	struct ice_port_topology port_topology;
+	struct ice_port_info *pi;
+	struct ice_pf *pf;
+	struct ice_hw *hw;
+	int err;
+
+	pf = np->vsi->back;
+	hw = &pf->hw;
+	pi = np->vsi->port_info;
+
+	/* Serdes parameters are not supported if not the PF VSI */
+	if (np->vsi->type != ICE_VSI_PF || !pi)
+		return;
+
+	err = ice_get_port_topology(hw, pi->lport, &port_topology);
+	if (err) {
+		netdev_info(netdev, "Extended register dump failed Lport %d\n",
+			    pi->lport);
+		return;
+	}
+
+	/* Get FEC correctable, uncorrectable counter */
+	err = ice_get_port_fec_stats(hw, port_topology.pcs_quad_select,
+				     port_topology.pcs_port, fec_stats);
+	if (err)
+		netdev_info(netdev, "FEC stats get failed Lport %d Err %d\n",
+			    pi->lport, err);
+}
+
 static const struct ethtool_ops ice_ethtool_ops = {
 	.cap_rss_ctx_supported  = true,
 	.supported_coalesce_params = ETHTOOL_COALESCE_USECS |
@@ -4290,6 +4727,7 @@ static const struct ethtool_ops ice_ethtool_ops = {
 	.cap_rss_sym_xor_supported = true,
 	.get_link_ksettings	= ice_get_link_ksettings,
 	.set_link_ksettings	= ice_set_link_ksettings,
+	.get_fec_stats		= ice_get_fec_stats,
 	.get_drvinfo		= ice_get_drvinfo,
 	.get_regs_len		= ice_get_regs_len,
 	.get_regs		= ice_get_regs,