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, 416 insertions, 0 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb3/vsc8211.c b/drivers/net/ethernet/chelsio/cxgb3/vsc8211.c
new file mode 100644
index 000000000..8638ad42b
--- /dev/null
+++ b/drivers/net/ethernet/chelsio/cxgb3/vsc8211.c
@@ -0,0 +1,416 @@
+/*
+ * Copyright (c) 2005-2008 Chelsio, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ *     Redistribution and use in source and binary forms, with or
+ *     without modification, are permitted provided that the following
+ *     conditions are met:
+ *
+ *      - Redistributions of source code must retain the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer.
+ *
+ *      - Redistributions in binary form must reproduce the above
+ *        copyright notice, this list of conditions and the following
+ *        disclaimer in the documentation and/or other materials
+ *        provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include "common.h"
+
+/* VSC8211 PHY specific registers. */
+enum {
+	VSC8211_SIGDET_CTRL = 19,
+	VSC8211_EXT_CTRL = 23,
+	VSC8211_INTR_ENABLE = 25,
+	VSC8211_INTR_STATUS = 26,
+	VSC8211_LED_CTRL = 27,
+	VSC8211_AUX_CTRL_STAT = 28,
+	VSC8211_EXT_PAGE_AXS = 31,
+};
+
+enum {
+	VSC_INTR_RX_ERR = 1 << 0,
+	VSC_INTR_MS_ERR = 1 << 1,  /* master/slave resolution error */
+	VSC_INTR_CABLE = 1 << 2,  /* cable impairment */
+	VSC_INTR_FALSE_CARR = 1 << 3,  /* false carrier */
+	VSC_INTR_MEDIA_CHG = 1 << 4,  /* AMS media change */
+	VSC_INTR_RX_FIFO = 1 << 5,  /* Rx FIFO over/underflow */
+	VSC_INTR_TX_FIFO = 1 << 6,  /* Tx FIFO over/underflow */
+	VSC_INTR_DESCRAMBL = 1 << 7,  /* descrambler lock-lost */
+	VSC_INTR_SYMBOL_ERR = 1 << 8,  /* symbol error */
+	VSC_INTR_NEG_DONE = 1 << 10, /* autoneg done */
+	VSC_INTR_NEG_ERR = 1 << 11, /* autoneg error */
+	VSC_INTR_DPLX_CHG = 1 << 12, /* duplex change */
+	VSC_INTR_LINK_CHG = 1 << 13, /* link change */
+	VSC_INTR_SPD_CHG = 1 << 14, /* speed change */
+	VSC_INTR_ENABLE = 1 << 15, /* interrupt enable */
+};
+
+enum {
+	VSC_CTRL_CLAUSE37_VIEW = 1 << 4,   /* Switch to Clause 37 view */
+	VSC_CTRL_MEDIA_MODE_HI = 0xf000    /* High part of media mode select */
+};
+
+#define CFG_CHG_INTR_MASK (VSC_INTR_LINK_CHG | VSC_INTR_NEG_ERR | \
+			   VSC_INTR_DPLX_CHG | VSC_INTR_SPD_CHG | \
+	 		   VSC_INTR_NEG_DONE)
+#define INTR_MASK (CFG_CHG_INTR_MASK | VSC_INTR_TX_FIFO | VSC_INTR_RX_FIFO | \
+		   VSC_INTR_ENABLE)
+
+/* PHY specific auxiliary control & status register fields */
+#define S_ACSR_ACTIPHY_TMR    0
+#define M_ACSR_ACTIPHY_TMR    0x3
+#define V_ACSR_ACTIPHY_TMR(x) ((x) << S_ACSR_ACTIPHY_TMR)
+
+#define S_ACSR_SPEED    3
+#define M_ACSR_SPEED    0x3
+#define G_ACSR_SPEED(x) (((x) >> S_ACSR_SPEED) & M_ACSR_SPEED)
+
+#define S_ACSR_DUPLEX 5
+#define F_ACSR_DUPLEX (1 << S_ACSR_DUPLEX)
+
+#define S_ACSR_ACTIPHY 6
+#define F_ACSR_ACTIPHY (1 << S_ACSR_ACTIPHY)
+
+/*
+ * Reset the PHY.  This PHY completes reset immediately so we never wait.
+ */
+static int vsc8211_reset(struct cphy *cphy, int wait)
+{
+	return t3_phy_reset(cphy, MDIO_DEVAD_NONE, 0);
+}
+
+static int vsc8211_intr_enable(struct cphy *cphy)
+{
+	return t3_mdio_write(cphy, MDIO_DEVAD_NONE, VSC8211_INTR_ENABLE,
+			     INTR_MASK);
+}
+
+static int vsc8211_intr_disable(struct cphy *cphy)
+{
+	return t3_mdio_write(cphy, MDIO_DEVAD_NONE, VSC8211_INTR_ENABLE, 0);
+}
+
+static int vsc8211_intr_clear(struct cphy *cphy)
+{
+	u32 val;
+
+	/* Clear PHY interrupts by reading the register. */
+	return t3_mdio_read(cphy, MDIO_DEVAD_NONE, VSC8211_INTR_STATUS, &val);
+}
+
+static int vsc8211_autoneg_enable(struct cphy *cphy)
+{
+	return t3_mdio_change_bits(cphy, MDIO_DEVAD_NONE, MII_BMCR,
+				   BMCR_PDOWN | BMCR_ISOLATE,
+				   BMCR_ANENABLE | BMCR_ANRESTART);
+}
+
+static int vsc8211_autoneg_restart(struct cphy *cphy)
+{
+	return t3_mdio_change_bits(cphy, MDIO_DEVAD_NONE, MII_BMCR,
+				   BMCR_PDOWN | BMCR_ISOLATE,
+				   BMCR_ANRESTART);
+}
+
+static int vsc8211_get_link_status(struct cphy *cphy, int *link_ok,
+				   int *speed, int *duplex, int *fc)
+{
+	unsigned int bmcr, status, lpa, adv;
+	int err, sp = -1, dplx = -1, pause = 0;
+
+	err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMCR, &bmcr);
+	if (!err)
+		err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMSR, &status);
+	if (err)
+		return err;
+
+	if (link_ok) {
+		/*
+		 * BMSR_LSTATUS is latch-low, so if it is 0 we need to read it
+		 * once more to get the current link state.
+		 */
+		if (!(status & BMSR_LSTATUS))
+			err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMSR,
+					   &status);
+		if (err)
+			return err;
+		*link_ok = (status & BMSR_LSTATUS) != 0;
+	}
+	if (!(bmcr & BMCR_ANENABLE)) {
+		dplx = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+		if (bmcr & BMCR_SPEED1000)
+			sp = SPEED_1000;
+		else if (bmcr & BMCR_SPEED100)
+			sp = SPEED_100;
+		else
+			sp = SPEED_10;
+	} else if (status & BMSR_ANEGCOMPLETE) {
+		err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, VSC8211_AUX_CTRL_STAT,
+				   &status);
+		if (err)
+			return err;
+
+		dplx = (status & F_ACSR_DUPLEX) ? DUPLEX_FULL : DUPLEX_HALF;
+		sp = G_ACSR_SPEED(status);
+		if (sp == 0)
+			sp = SPEED_10;
+		else if (sp == 1)
+			sp = SPEED_100;
+		else
+			sp = SPEED_1000;
+
+		if (fc && dplx == DUPLEX_FULL) {
+			err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_LPA,
+					   &lpa);
+			if (!err)
+				err = t3_mdio_read(cphy, MDIO_DEVAD_NONE,
+						   MII_ADVERTISE, &adv);
+			if (err)
+				return err;
+
+			if (lpa & adv & ADVERTISE_PAUSE_CAP)
+				pause = PAUSE_RX | PAUSE_TX;
+			else if ((lpa & ADVERTISE_PAUSE_CAP) &&
+				 (lpa & ADVERTISE_PAUSE_ASYM) &&
+				 (adv & ADVERTISE_PAUSE_ASYM))
+				pause = PAUSE_TX;
+			else if ((lpa & ADVERTISE_PAUSE_ASYM) &&
+				 (adv & ADVERTISE_PAUSE_CAP))
+				pause = PAUSE_RX;
+		}
+	}
+	if (speed)
+		*speed = sp;
+	if (duplex)
+		*duplex = dplx;
+	if (fc)
+		*fc = pause;
+	return 0;
+}
+
+static int vsc8211_get_link_status_fiber(struct cphy *cphy, int *link_ok,
+					 int *speed, int *duplex, int *fc)
+{
+	unsigned int bmcr, status, lpa, adv;
+	int err, sp = -1, dplx = -1, pause = 0;
+
+	err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMCR, &bmcr);
+	if (!err)
+		err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMSR, &status);
+	if (err)
+		return err;
+
+	if (link_ok) {
+		/*
+		 * BMSR_LSTATUS is latch-low, so if it is 0 we need to read it
+		 * once more to get the current link state.
+		 */
+		if (!(status & BMSR_LSTATUS))
+			err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_BMSR,
+					   &status);
+		if (err)
+			return err;
+		*link_ok = (status & BMSR_LSTATUS) != 0;
+	}
+	if (!(bmcr & BMCR_ANENABLE)) {
+		dplx = (bmcr & BMCR_FULLDPLX) ? DUPLEX_FULL : DUPLEX_HALF;
+		if (bmcr & BMCR_SPEED1000)
+			sp = SPEED_1000;
+		else if (bmcr & BMCR_SPEED100)
+			sp = SPEED_100;
+		else
+			sp = SPEED_10;
+	} else if (status & BMSR_ANEGCOMPLETE) {
+		err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_LPA, &lpa);
+		if (!err)
+			err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, MII_ADVERTISE,
+					   &adv);
+		if (err)
+			return err;
+
+		if (adv & lpa & ADVERTISE_1000XFULL) {
+			dplx = DUPLEX_FULL;
+			sp = SPEED_1000;
+		} else if (adv & lpa & ADVERTISE_1000XHALF) {
+			dplx = DUPLEX_HALF;
+			sp = SPEED_1000;
+		}
+
+		if (fc && dplx == DUPLEX_FULL) {
+			if (lpa & adv & ADVERTISE_1000XPAUSE)
+				pause = PAUSE_RX | PAUSE_TX;
+			else if ((lpa & ADVERTISE_1000XPAUSE) &&
+				 (adv & lpa & ADVERTISE_1000XPSE_ASYM))
+				pause = PAUSE_TX;
+			else if ((lpa & ADVERTISE_1000XPSE_ASYM) &&
+				 (adv & ADVERTISE_1000XPAUSE))
+				pause = PAUSE_RX;
+		}
+	}
+	if (speed)
+		*speed = sp;
+	if (duplex)
+		*duplex = dplx;
+	if (fc)
+		*fc = pause;
+	return 0;
+}
+
+#ifdef UNUSED
+/*
+ * Enable/disable auto MDI/MDI-X in forced link speed mode.
+ */
+static int vsc8211_set_automdi(struct cphy *phy, int enable)
+{
+	int err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_EXT_PAGE_AXS, 0x52b5);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, 18, 0x12);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, 17, enable ? 0x2803 : 0x3003);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, 16, 0x87fa);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_EXT_PAGE_AXS, 0);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int vsc8211_set_speed_duplex(struct cphy *phy, int speed, int duplex)
+{
+	int err;
+
+	err = t3_set_phy_speed_duplex(phy, speed, duplex);
+	if (!err)
+		err = vsc8211_set_automdi(phy, 1);
+	return err;
+}
+#endif /* UNUSED */
+
+static int vsc8211_power_down(struct cphy *cphy, int enable)
+{
+	return t3_mdio_change_bits(cphy, 0, MII_BMCR, BMCR_PDOWN,
+				   enable ? BMCR_PDOWN : 0);
+}
+
+static int vsc8211_intr_handler(struct cphy *cphy)
+{
+	unsigned int cause;
+	int err, cphy_cause = 0;
+
+	err = t3_mdio_read(cphy, MDIO_DEVAD_NONE, VSC8211_INTR_STATUS, &cause);
+	if (err)
+		return err;
+
+	cause &= INTR_MASK;
+	if (cause & CFG_CHG_INTR_MASK)
+		cphy_cause |= cphy_cause_link_change;
+	if (cause & (VSC_INTR_RX_FIFO | VSC_INTR_TX_FIFO))
+		cphy_cause |= cphy_cause_fifo_error;
+	return cphy_cause;
+}
+
+static const struct cphy_ops vsc8211_ops = {
+	.reset = vsc8211_reset,
+	.intr_enable = vsc8211_intr_enable,
+	.intr_disable = vsc8211_intr_disable,
+	.intr_clear = vsc8211_intr_clear,
+	.intr_handler = vsc8211_intr_handler,
+	.autoneg_enable = vsc8211_autoneg_enable,
+	.autoneg_restart = vsc8211_autoneg_restart,
+	.advertise = t3_phy_advertise,
+	.set_speed_duplex = t3_set_phy_speed_duplex,
+	.get_link_status = vsc8211_get_link_status,
+	.power_down = vsc8211_power_down,
+};
+
+static const struct cphy_ops vsc8211_fiber_ops = {
+	.reset = vsc8211_reset,
+	.intr_enable = vsc8211_intr_enable,
+	.intr_disable = vsc8211_intr_disable,
+	.intr_clear = vsc8211_intr_clear,
+	.intr_handler = vsc8211_intr_handler,
+	.autoneg_enable = vsc8211_autoneg_enable,
+	.autoneg_restart = vsc8211_autoneg_restart,
+	.advertise = t3_phy_advertise_fiber,
+	.set_speed_duplex = t3_set_phy_speed_duplex,
+	.get_link_status = vsc8211_get_link_status_fiber,
+	.power_down = vsc8211_power_down,
+};
+
+int t3_vsc8211_phy_prep(struct cphy *phy, struct adapter *adapter,
+			int phy_addr, const struct mdio_ops *mdio_ops)
+{
+	int err;
+	unsigned int val;
+
+	cphy_init(phy, adapter, phy_addr, &vsc8211_ops, mdio_ops,
+		  SUPPORTED_10baseT_Full | SUPPORTED_100baseT_Full |
+		  SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_MII |
+		  SUPPORTED_TP | SUPPORTED_IRQ, "10/100/1000BASE-T");
+	msleep(20);       /* PHY needs ~10ms to start responding to MDIO */
+
+	err = t3_mdio_read(phy, MDIO_DEVAD_NONE, VSC8211_EXT_CTRL, &val);
+	if (err)
+		return err;
+	if (val & VSC_CTRL_MEDIA_MODE_HI) {
+		/* copper interface, just need to configure the LEDs */
+		return t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_LED_CTRL,
+				     0x100);
+	}
+
+	phy->caps = SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg |
+		    SUPPORTED_MII | SUPPORTED_FIBRE | SUPPORTED_IRQ;
+	phy->desc = "1000BASE-X";
+	phy->ops = &vsc8211_fiber_ops;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_EXT_PAGE_AXS, 1);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_SIGDET_CTRL, 1);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_EXT_PAGE_AXS, 0);
+	if (err)
+		return err;
+
+	err = t3_mdio_write(phy, MDIO_DEVAD_NONE, VSC8211_EXT_CTRL,
+			    val | VSC_CTRL_CLAUSE37_VIEW);
+	if (err)
+		return err;
+
+	err = vsc8211_reset(phy, 0);
+	if (err)
+		return err;
+
+	udelay(5); /* delay after reset before next SMI */
+	return 0;
+}