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, 421 insertions, 0 deletions

diff --git a/drivers/net/ethernet/microchip/lan966x/lan966x_port.c b/drivers/net/ethernet/microchip/lan966x/lan966x_port.c
new file mode 100644
index 000000000..0050fcb98
--- /dev/null
+++ b/drivers/net/ethernet/microchip/lan966x/lan966x_port.c
@@ -0,0 +1,421 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <linux/netdevice.h>
+#include <linux/phy/phy.h>
+
+#include "lan966x_main.h"
+
+/* Watermark encode */
+#define MULTIPLIER_BIT BIT(8)
+static u32 lan966x_wm_enc(u32 value)
+{
+	value /= LAN966X_BUFFER_CELL_SZ;
+
+	if (value >= MULTIPLIER_BIT) {
+		value /= 16;
+		if (value >= MULTIPLIER_BIT)
+			value = (MULTIPLIER_BIT - 1);
+
+		value |= MULTIPLIER_BIT;
+	}
+
+	return value;
+}
+
+static void lan966x_port_link_down(struct lan966x_port *port)
+{
+	struct lan966x *lan966x = port->lan966x;
+	u32 val, delay = 0;
+
+	/* 0.5: Disable any AFI */
+	lan_rmw(AFI_PORT_CFG_FC_SKIP_TTI_INJ_SET(1) |
+		AFI_PORT_CFG_FRM_OUT_MAX_SET(0),
+		AFI_PORT_CFG_FC_SKIP_TTI_INJ |
+		AFI_PORT_CFG_FRM_OUT_MAX,
+		lan966x, AFI_PORT_CFG(port->chip_port));
+
+	/* wait for reg afi_port_frm_out to become 0 for the port */
+	while (true) {
+		val = lan_rd(lan966x, AFI_PORT_FRM_OUT(port->chip_port));
+		if (!AFI_PORT_FRM_OUT_FRM_OUT_CNT_GET(val))
+			break;
+
+		usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+		delay++;
+		if (delay == 2000) {
+			pr_err("AFI timeout chip port %u", port->chip_port);
+			break;
+		}
+	}
+
+	delay = 0;
+
+	/* 1: Reset the PCS Rx clock domain  */
+	lan_rmw(DEV_CLOCK_CFG_PCS_RX_RST_SET(1),
+		DEV_CLOCK_CFG_PCS_RX_RST,
+		lan966x, DEV_CLOCK_CFG(port->chip_port));
+
+	/* 2: Disable MAC frame reception */
+	lan_rmw(DEV_MAC_ENA_CFG_RX_ENA_SET(0),
+		DEV_MAC_ENA_CFG_RX_ENA,
+		lan966x, DEV_MAC_ENA_CFG(port->chip_port));
+
+	/* 3: Disable traffic being sent to or from switch port */
+	lan_rmw(QSYS_SW_PORT_MODE_PORT_ENA_SET(0),
+		QSYS_SW_PORT_MODE_PORT_ENA,
+		lan966x, QSYS_SW_PORT_MODE(port->chip_port));
+
+	/* 4: Disable dequeuing from the egress queues  */
+	lan_rmw(QSYS_PORT_MODE_DEQUEUE_DIS_SET(1),
+		QSYS_PORT_MODE_DEQUEUE_DIS,
+		lan966x, QSYS_PORT_MODE(port->chip_port));
+
+	/* 5: Disable Flowcontrol */
+	lan_rmw(SYS_PAUSE_CFG_PAUSE_ENA_SET(0),
+		SYS_PAUSE_CFG_PAUSE_ENA,
+		lan966x, SYS_PAUSE_CFG(port->chip_port));
+
+	/* 5.1: Disable PFC */
+	lan_rmw(QSYS_SW_PORT_MODE_TX_PFC_ENA_SET(0),
+		QSYS_SW_PORT_MODE_TX_PFC_ENA,
+		lan966x, QSYS_SW_PORT_MODE(port->chip_port));
+
+	/* 6: Wait a worst case time 8ms (jumbo/10Mbit) */
+	usleep_range(8 * USEC_PER_MSEC, 9 * USEC_PER_MSEC);
+
+	/* 7: Disable HDX backpressure */
+	lan_rmw(SYS_FRONT_PORT_MODE_HDX_MODE_SET(0),
+		SYS_FRONT_PORT_MODE_HDX_MODE,
+		lan966x, SYS_FRONT_PORT_MODE(port->chip_port));
+
+	/* 8: Flush the queues accociated with the port */
+	lan_rmw(QSYS_SW_PORT_MODE_AGING_MODE_SET(3),
+		QSYS_SW_PORT_MODE_AGING_MODE,
+		lan966x, QSYS_SW_PORT_MODE(port->chip_port));
+
+	/* 9: Enable dequeuing from the egress queues */
+	lan_rmw(QSYS_PORT_MODE_DEQUEUE_DIS_SET(0),
+		QSYS_PORT_MODE_DEQUEUE_DIS,
+		lan966x, QSYS_PORT_MODE(port->chip_port));
+
+	/* 10: Wait until flushing is complete */
+	while (true) {
+		val = lan_rd(lan966x, QSYS_SW_STATUS(port->chip_port));
+		if (!QSYS_SW_STATUS_EQ_AVAIL_GET(val))
+			break;
+
+		usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+		delay++;
+		if (delay == 2000) {
+			pr_err("Flush timeout chip port %u", port->chip_port);
+			break;
+		}
+	}
+
+	/* 11: Reset the Port and MAC clock domains */
+	lan_rmw(DEV_MAC_ENA_CFG_TX_ENA_SET(0),
+		DEV_MAC_ENA_CFG_TX_ENA,
+		lan966x, DEV_MAC_ENA_CFG(port->chip_port));
+
+	lan_rmw(DEV_CLOCK_CFG_PORT_RST_SET(1),
+		DEV_CLOCK_CFG_PORT_RST,
+		lan966x, DEV_CLOCK_CFG(port->chip_port));
+
+	usleep_range(USEC_PER_MSEC, 2 * USEC_PER_MSEC);
+
+	lan_rmw(DEV_CLOCK_CFG_MAC_TX_RST_SET(1) |
+		DEV_CLOCK_CFG_MAC_RX_RST_SET(1) |
+		DEV_CLOCK_CFG_PORT_RST_SET(1),
+		DEV_CLOCK_CFG_MAC_TX_RST |
+		DEV_CLOCK_CFG_MAC_RX_RST |
+		DEV_CLOCK_CFG_PORT_RST,
+		lan966x, DEV_CLOCK_CFG(port->chip_port));
+
+	/* 12: Clear flushing */
+	lan_rmw(QSYS_SW_PORT_MODE_AGING_MODE_SET(2),
+		QSYS_SW_PORT_MODE_AGING_MODE,
+		lan966x, QSYS_SW_PORT_MODE(port->chip_port));
+
+	/* The port is disabled and flushed, now set up the port in the
+	 * new operating mode
+	 */
+}
+
+static void lan966x_port_link_up(struct lan966x_port *port)
+{
+	struct lan966x_port_config *config = &port->config;
+	struct lan966x *lan966x = port->lan966x;
+	int speed = 0, mode = 0;
+	int atop_wm = 0;
+
+	switch (config->speed) {
+	case SPEED_10:
+		speed = LAN966X_SPEED_10;
+		break;
+	case SPEED_100:
+		speed = LAN966X_SPEED_100;
+		break;
+	case SPEED_1000:
+		speed = LAN966X_SPEED_1000;
+		mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
+		break;
+	case SPEED_2500:
+		speed = LAN966X_SPEED_2500;
+		mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
+		break;
+	}
+
+	lan966x_taprio_speed_set(port, config->speed);
+
+	/* Also the GIGA_MODE_ENA(1) needs to be set regardless of the
+	 * port speed for QSGMII ports.
+	 */
+	if (phy_interface_num_ports(config->portmode) == 4)
+		mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA_SET(1);
+
+	lan_wr(config->duplex | mode,
+	       lan966x, DEV_MAC_MODE_CFG(port->chip_port));
+
+	lan_rmw(DEV_MAC_IFG_CFG_TX_IFG_SET(config->duplex ? 6 : 5) |
+		DEV_MAC_IFG_CFG_RX_IFG1_SET(config->speed == SPEED_10 ? 2 : 1) |
+		DEV_MAC_IFG_CFG_RX_IFG2_SET(2),
+		DEV_MAC_IFG_CFG_TX_IFG |
+		DEV_MAC_IFG_CFG_RX_IFG1 |
+		DEV_MAC_IFG_CFG_RX_IFG2,
+		lan966x, DEV_MAC_IFG_CFG(port->chip_port));
+
+	lan_rmw(DEV_MAC_HDX_CFG_SEED_SET(4) |
+		DEV_MAC_HDX_CFG_SEED_LOAD_SET(1),
+		DEV_MAC_HDX_CFG_SEED |
+		DEV_MAC_HDX_CFG_SEED_LOAD,
+		lan966x, DEV_MAC_HDX_CFG(port->chip_port));
+
+	if (config->portmode == PHY_INTERFACE_MODE_GMII) {
+		if (config->speed == SPEED_1000)
+			lan_rmw(CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA_SET(1),
+				CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA,
+				lan966x,
+				CHIP_TOP_CUPHY_PORT_CFG(port->chip_port));
+		else
+			lan_rmw(CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA_SET(0),
+				CHIP_TOP_CUPHY_PORT_CFG_GTX_CLK_ENA,
+				lan966x,
+				CHIP_TOP_CUPHY_PORT_CFG(port->chip_port));
+	}
+
+	/* No PFC */
+	lan_wr(ANA_PFC_CFG_FC_LINK_SPEED_SET(speed),
+	       lan966x, ANA_PFC_CFG(port->chip_port));
+
+	lan_rmw(DEV_PCS1G_CFG_PCS_ENA_SET(1),
+		DEV_PCS1G_CFG_PCS_ENA,
+		lan966x, DEV_PCS1G_CFG(port->chip_port));
+
+	lan_rmw(DEV_PCS1G_SD_CFG_SD_ENA_SET(0),
+		DEV_PCS1G_SD_CFG_SD_ENA,
+		lan966x, DEV_PCS1G_SD_CFG(port->chip_port));
+
+	/* Set Pause WM hysteresis, start/stop are in 1518 byte units */
+	lan_wr(SYS_PAUSE_CFG_PAUSE_ENA_SET(1) |
+	       SYS_PAUSE_CFG_PAUSE_STOP_SET(lan966x_wm_enc(4 * 1518)) |
+	       SYS_PAUSE_CFG_PAUSE_START_SET(lan966x_wm_enc(6 * 1518)),
+	       lan966x, SYS_PAUSE_CFG(port->chip_port));
+
+	/* Set SMAC of Pause frame (00:00:00:00:00:00) */
+	lan_wr(0, lan966x, DEV_FC_MAC_LOW_CFG(port->chip_port));
+	lan_wr(0, lan966x, DEV_FC_MAC_HIGH_CFG(port->chip_port));
+
+	/* Flow control */
+	lan_rmw(SYS_MAC_FC_CFG_FC_LINK_SPEED_SET(speed) |
+		SYS_MAC_FC_CFG_FC_LATENCY_CFG_SET(7) |
+		SYS_MAC_FC_CFG_ZERO_PAUSE_ENA_SET(1) |
+		SYS_MAC_FC_CFG_PAUSE_VAL_CFG_SET(0xffff) |
+		SYS_MAC_FC_CFG_RX_FC_ENA_SET(config->pause & MLO_PAUSE_RX ? 1 : 0) |
+		SYS_MAC_FC_CFG_TX_FC_ENA_SET(config->pause & MLO_PAUSE_TX ? 1 : 0),
+		SYS_MAC_FC_CFG_FC_LINK_SPEED |
+		SYS_MAC_FC_CFG_FC_LATENCY_CFG |
+		SYS_MAC_FC_CFG_ZERO_PAUSE_ENA |
+		SYS_MAC_FC_CFG_PAUSE_VAL_CFG |
+		SYS_MAC_FC_CFG_RX_FC_ENA |
+		SYS_MAC_FC_CFG_TX_FC_ENA,
+		lan966x, SYS_MAC_FC_CFG(port->chip_port));
+
+	/* Tail dropping watermark */
+	atop_wm = lan966x->shared_queue_sz;
+
+	/* The total memory size is diveded by number of front ports plus CPU
+	 * port
+	 */
+	lan_wr(lan966x_wm_enc(atop_wm / lan966x->num_phys_ports + 1), lan966x,
+	       SYS_ATOP(port->chip_port));
+	lan_wr(lan966x_wm_enc(atop_wm), lan966x, SYS_ATOP_TOT_CFG);
+
+	/* This needs to be at the end */
+	/* Enable MAC module */
+	lan_wr(DEV_MAC_ENA_CFG_RX_ENA_SET(1) |
+	       DEV_MAC_ENA_CFG_TX_ENA_SET(1),
+	       lan966x, DEV_MAC_ENA_CFG(port->chip_port));
+
+	/* Take out the clock from reset */
+	lan_wr(DEV_CLOCK_CFG_LINK_SPEED_SET(speed),
+	       lan966x, DEV_CLOCK_CFG(port->chip_port));
+
+	/* Core: Enable port for frame transfer */
+	lan_wr(QSYS_SW_PORT_MODE_PORT_ENA_SET(1) |
+	       QSYS_SW_PORT_MODE_SCH_NEXT_CFG_SET(1) |
+	       QSYS_SW_PORT_MODE_INGRESS_DROP_MODE_SET(1),
+	       lan966x, QSYS_SW_PORT_MODE(port->chip_port));
+
+	lan_rmw(AFI_PORT_CFG_FC_SKIP_TTI_INJ_SET(0) |
+		AFI_PORT_CFG_FRM_OUT_MAX_SET(16),
+		AFI_PORT_CFG_FC_SKIP_TTI_INJ |
+		AFI_PORT_CFG_FRM_OUT_MAX,
+		lan966x, AFI_PORT_CFG(port->chip_port));
+}
+
+void lan966x_port_config_down(struct lan966x_port *port)
+{
+	lan966x_port_link_down(port);
+}
+
+void lan966x_port_config_up(struct lan966x_port *port)
+{
+	lan966x_port_link_up(port);
+}
+
+void lan966x_port_status_get(struct lan966x_port *port,
+			     struct phylink_link_state *state)
+{
+	struct lan966x *lan966x = port->lan966x;
+	bool link_down;
+	u16 bmsr = 0;
+	u16 lp_adv;
+	u32 val;
+
+	val = lan_rd(lan966x, DEV_PCS1G_STICKY(port->chip_port));
+	link_down = DEV_PCS1G_STICKY_LINK_DOWN_STICKY_GET(val);
+	if (link_down)
+		lan_wr(val, lan966x, DEV_PCS1G_STICKY(port->chip_port));
+
+	/* Get both current Link and Sync status */
+	val = lan_rd(lan966x, DEV_PCS1G_LINK_STATUS(port->chip_port));
+	state->link = DEV_PCS1G_LINK_STATUS_LINK_STATUS_GET(val) &&
+		      DEV_PCS1G_LINK_STATUS_SYNC_STATUS_GET(val);
+	state->link &= !link_down;
+
+	/* Get PCS ANEG status register */
+	val = lan_rd(lan966x, DEV_PCS1G_ANEG_STATUS(port->chip_port));
+	/* Aneg complete provides more information  */
+	if (DEV_PCS1G_ANEG_STATUS_ANEG_COMPLETE_GET(val)) {
+		state->an_complete = true;
+
+		bmsr |= state->link ? BMSR_LSTATUS : 0;
+		bmsr |= BMSR_ANEGCOMPLETE;
+
+		lp_adv = DEV_PCS1G_ANEG_STATUS_LP_ADV_GET(val);
+		phylink_mii_c22_pcs_decode_state(state, bmsr, lp_adv);
+	} else {
+		if (!state->link)
+			return;
+
+		if (state->interface == PHY_INTERFACE_MODE_1000BASEX)
+			state->speed = SPEED_1000;
+		else if (state->interface == PHY_INTERFACE_MODE_2500BASEX)
+			state->speed = SPEED_2500;
+
+		state->duplex = DUPLEX_FULL;
+	}
+}
+
+int lan966x_port_pcs_set(struct lan966x_port *port,
+			 struct lan966x_port_config *config)
+{
+	struct lan966x *lan966x = port->lan966x;
+	bool inband_aneg = false;
+	bool outband;
+	bool full_preamble = false;
+
+	if (config->portmode == PHY_INTERFACE_MODE_QUSGMII)
+		full_preamble = true;
+
+	if (config->inband) {
+		if (config->portmode == PHY_INTERFACE_MODE_SGMII ||
+		    phy_interface_num_ports(config->portmode) == 4)
+			inband_aneg = true; /* Cisco-SGMII in-band-aneg */
+		else if (config->portmode == PHY_INTERFACE_MODE_1000BASEX &&
+			 config->autoneg)
+			inband_aneg = true; /* Clause-37 in-band-aneg */
+
+		outband = false;
+	} else {
+		outband = true;
+	}
+
+	/* Disable or enable inband.
+	 * For QUSGMII, we rely on the preamble to transmit data such as
+	 * timestamps, therefore force full preamble transmission, and prevent
+	 * premable shortening
+	 */
+	lan_rmw(DEV_PCS1G_MODE_CFG_SGMII_MODE_ENA_SET(outband) |
+		DEV_PCS1G_MODE_CFG_SAVE_PREAMBLE_ENA_SET(full_preamble),
+		DEV_PCS1G_MODE_CFG_SGMII_MODE_ENA |
+		DEV_PCS1G_MODE_CFG_SAVE_PREAMBLE_ENA,
+		lan966x, DEV_PCS1G_MODE_CFG(port->chip_port));
+
+	/* Enable PCS */
+	lan_wr(DEV_PCS1G_CFG_PCS_ENA_SET(1),
+	       lan966x, DEV_PCS1G_CFG(port->chip_port));
+
+	if (inband_aneg) {
+		int adv = phylink_mii_c22_pcs_encode_advertisement(config->portmode,
+								   config->advertising);
+		if (adv >= 0)
+			/* Enable in-band aneg */
+			lan_wr(DEV_PCS1G_ANEG_CFG_ADV_ABILITY_SET(adv) |
+			       DEV_PCS1G_ANEG_CFG_SW_RESOLVE_ENA_SET(1) |
+			       DEV_PCS1G_ANEG_CFG_ENA_SET(1) |
+			       DEV_PCS1G_ANEG_CFG_RESTART_ONE_SHOT_SET(1),
+			       lan966x, DEV_PCS1G_ANEG_CFG(port->chip_port));
+	} else {
+		lan_wr(0, lan966x, DEV_PCS1G_ANEG_CFG(port->chip_port));
+	}
+
+	/* Take PCS out of reset */
+	lan_rmw(DEV_CLOCK_CFG_LINK_SPEED_SET(LAN966X_SPEED_1000) |
+		DEV_CLOCK_CFG_PCS_RX_RST_SET(0) |
+		DEV_CLOCK_CFG_PCS_TX_RST_SET(0),
+		DEV_CLOCK_CFG_LINK_SPEED |
+		DEV_CLOCK_CFG_PCS_RX_RST |
+		DEV_CLOCK_CFG_PCS_TX_RST,
+		lan966x, DEV_CLOCK_CFG(port->chip_port));
+
+	port->config = *config;
+
+	return 0;
+}
+
+void lan966x_port_init(struct lan966x_port *port)
+{
+	struct lan966x_port_config *config = &port->config;
+	struct lan966x *lan966x = port->lan966x;
+
+	lan_rmw(ANA_PORT_CFG_LEARN_ENA_SET(0),
+		ANA_PORT_CFG_LEARN_ENA,
+		lan966x, ANA_PORT_CFG(port->chip_port));
+
+	lan966x_port_config_down(port);
+
+	if (lan966x->fdma)
+		lan966x_fdma_netdev_init(lan966x, port->dev);
+
+	if (phy_interface_num_ports(config->portmode) != 4)
+		return;
+
+	lan_rmw(DEV_CLOCK_CFG_PCS_RX_RST_SET(0) |
+		DEV_CLOCK_CFG_PCS_TX_RST_SET(0) |
+		DEV_CLOCK_CFG_LINK_SPEED_SET(LAN966X_SPEED_1000),
+		DEV_CLOCK_CFG_PCS_RX_RST |
+		DEV_CLOCK_CFG_PCS_TX_RST |
+		DEV_CLOCK_CFG_LINK_SPEED,
+		lan966x, DEV_CLOCK_CFG(port->chip_port));
+}