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, 904 insertions, 0 deletions

diff --git a/drivers/net/phy/nxp-tja11xx.c b/drivers/net/phy/nxp-tja11xx.c
new file mode 100644
index 000000000..ec91e671f
--- /dev/null
+++ b/drivers/net/phy/nxp-tja11xx.c
@@ -0,0 +1,904 @@
+// SPDX-License-Identifier: GPL-2.0
+/* NXP TJA1100 BroadRReach PHY driver
+ *
+ * Copyright (C) 2018 Marek Vasut <marex@denx.de>
+ */
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/ethtool_netlink.h>
+#include <linux/kernel.h>
+#include <linux/mdio.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy.h>
+#include <linux/hwmon.h>
+#include <linux/bitfield.h>
+#include <linux/of_mdio.h>
+#include <linux/of_irq.h>
+
+#define PHY_ID_MASK			0xfffffff0
+#define PHY_ID_TJA1100			0x0180dc40
+#define PHY_ID_TJA1101			0x0180dd00
+#define PHY_ID_TJA1102			0x0180dc80
+
+#define MII_ECTRL			17
+#define MII_ECTRL_LINK_CONTROL		BIT(15)
+#define MII_ECTRL_POWER_MODE_MASK	GENMASK(14, 11)
+#define MII_ECTRL_POWER_MODE_NO_CHANGE	(0x0 << 11)
+#define MII_ECTRL_POWER_MODE_NORMAL	(0x3 << 11)
+#define MII_ECTRL_POWER_MODE_STANDBY	(0xc << 11)
+#define MII_ECTRL_CABLE_TEST		BIT(5)
+#define MII_ECTRL_CONFIG_EN		BIT(2)
+#define MII_ECTRL_WAKE_REQUEST		BIT(0)
+
+#define MII_CFG1			18
+#define MII_CFG1_MASTER_SLAVE		BIT(15)
+#define MII_CFG1_AUTO_OP		BIT(14)
+#define MII_CFG1_INTERFACE_MODE_MASK	GENMASK(9, 8)
+#define MII_CFG1_MII_MODE				(0x0 << 8)
+#define MII_CFG1_RMII_MODE_REFCLK_IN	BIT(8)
+#define MII_CFG1_RMII_MODE_REFCLK_OUT	BIT(9)
+#define MII_CFG1_REVMII_MODE			GENMASK(9, 8)
+#define MII_CFG1_SLEEP_CONFIRM		BIT(6)
+#define MII_CFG1_LED_MODE_MASK		GENMASK(5, 4)
+#define MII_CFG1_LED_MODE_LINKUP	0
+#define MII_CFG1_LED_ENABLE		BIT(3)
+
+#define MII_CFG2			19
+#define MII_CFG2_SLEEP_REQUEST_TO	GENMASK(1, 0)
+#define MII_CFG2_SLEEP_REQUEST_TO_16MS	0x3
+
+#define MII_INTSRC			21
+#define MII_INTSRC_LINK_FAIL		BIT(10)
+#define MII_INTSRC_LINK_UP		BIT(9)
+#define MII_INTSRC_MASK			(MII_INTSRC_LINK_FAIL | MII_INTSRC_LINK_UP)
+#define MII_INTSRC_UV_ERR		BIT(3)
+#define MII_INTSRC_TEMP_ERR		BIT(1)
+
+#define MII_INTEN			22
+#define MII_INTEN_LINK_FAIL		BIT(10)
+#define MII_INTEN_LINK_UP		BIT(9)
+#define MII_INTEN_UV_ERR		BIT(3)
+#define MII_INTEN_TEMP_ERR		BIT(1)
+
+#define MII_COMMSTAT			23
+#define MII_COMMSTAT_LINK_UP		BIT(15)
+#define MII_COMMSTAT_SQI_STATE		GENMASK(7, 5)
+#define MII_COMMSTAT_SQI_MAX		7
+
+#define MII_GENSTAT			24
+#define MII_GENSTAT_PLL_LOCKED		BIT(14)
+
+#define MII_EXTSTAT			25
+#define MII_EXTSTAT_SHORT_DETECT	BIT(8)
+#define MII_EXTSTAT_OPEN_DETECT		BIT(7)
+#define MII_EXTSTAT_POLARITY_DETECT	BIT(6)
+
+#define MII_COMMCFG			27
+#define MII_COMMCFG_AUTO_OP		BIT(15)
+
+/* Configure REF_CLK as input in RMII mode */
+#define TJA110X_RMII_MODE_REFCLK_IN       BIT(0)
+
+struct tja11xx_priv {
+	char		*hwmon_name;
+	struct device	*hwmon_dev;
+	struct phy_device *phydev;
+	struct work_struct phy_register_work;
+	u32 flags;
+};
+
+struct tja11xx_phy_stats {
+	const char	*string;
+	u8		reg;
+	u8		off;
+	u16		mask;
+};
+
+static struct tja11xx_phy_stats tja11xx_hw_stats[] = {
+	{ "phy_symbol_error_count", 20, 0, GENMASK(15, 0) },
+	{ "phy_polarity_detect", 25, 6, BIT(6) },
+	{ "phy_open_detect", 25, 7, BIT(7) },
+	{ "phy_short_detect", 25, 8, BIT(8) },
+	{ "phy_rem_rcvr_count", 26, 0, GENMASK(7, 0) },
+	{ "phy_loc_rcvr_count", 26, 8, GENMASK(15, 8) },
+};
+
+static int tja11xx_check(struct phy_device *phydev, u8 reg, u16 mask, u16 set)
+{
+	int val;
+
+	return phy_read_poll_timeout(phydev, reg, val, (val & mask) == set,
+				     150, 30000, false);
+}
+
+static int phy_modify_check(struct phy_device *phydev, u8 reg,
+			    u16 mask, u16 set)
+{
+	int ret;
+
+	ret = phy_modify(phydev, reg, mask, set);
+	if (ret)
+		return ret;
+
+	return tja11xx_check(phydev, reg, mask, set);
+}
+
+static int tja11xx_enable_reg_write(struct phy_device *phydev)
+{
+	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CONFIG_EN);
+}
+
+static int tja11xx_enable_link_control(struct phy_device *phydev)
+{
+	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
+}
+
+static int tja11xx_disable_link_control(struct phy_device *phydev)
+{
+	return phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
+}
+
+static int tja11xx_wakeup(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_ECTRL);
+	if (ret < 0)
+		return ret;
+
+	switch (ret & MII_ECTRL_POWER_MODE_MASK) {
+	case MII_ECTRL_POWER_MODE_NO_CHANGE:
+		break;
+	case MII_ECTRL_POWER_MODE_NORMAL:
+		ret = phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
+		if (ret)
+			return ret;
+
+		ret = phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
+		if (ret)
+			return ret;
+		break;
+	case MII_ECTRL_POWER_MODE_STANDBY:
+		ret = phy_modify_check(phydev, MII_ECTRL,
+				       MII_ECTRL_POWER_MODE_MASK,
+				       MII_ECTRL_POWER_MODE_STANDBY);
+		if (ret)
+			return ret;
+
+		ret = phy_modify(phydev, MII_ECTRL, MII_ECTRL_POWER_MODE_MASK,
+				 MII_ECTRL_POWER_MODE_NORMAL);
+		if (ret)
+			return ret;
+
+		ret = phy_modify_check(phydev, MII_GENSTAT,
+				       MII_GENSTAT_PLL_LOCKED,
+				       MII_GENSTAT_PLL_LOCKED);
+		if (ret)
+			return ret;
+
+		return tja11xx_enable_link_control(phydev);
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int tja11xx_soft_reset(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = tja11xx_enable_reg_write(phydev);
+	if (ret)
+		return ret;
+
+	return genphy_soft_reset(phydev);
+}
+
+static int tja11xx_config_aneg_cable_test(struct phy_device *phydev)
+{
+	bool finished = false;
+	int ret;
+
+	if (phydev->link)
+		return 0;
+
+	if (!phydev->drv->cable_test_start ||
+	    !phydev->drv->cable_test_get_status)
+		return 0;
+
+	ret = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);
+	if (ret)
+		return ret;
+
+	ret = phydev->drv->cable_test_start(phydev);
+	if (ret)
+		return ret;
+
+	/* According to the documentation this test takes 100 usec */
+	usleep_range(100, 200);
+
+	ret = phydev->drv->cable_test_get_status(phydev, &finished);
+	if (ret)
+		return ret;
+
+	if (finished)
+		ethnl_cable_test_finished(phydev);
+
+	return 0;
+}
+
+static int tja11xx_config_aneg(struct phy_device *phydev)
+{
+	int ret, changed = 0;
+	u16 ctl = 0;
+
+	switch (phydev->master_slave_set) {
+	case MASTER_SLAVE_CFG_MASTER_FORCE:
+		ctl |= MII_CFG1_MASTER_SLAVE;
+		break;
+	case MASTER_SLAVE_CFG_SLAVE_FORCE:
+		break;
+	case MASTER_SLAVE_CFG_UNKNOWN:
+	case MASTER_SLAVE_CFG_UNSUPPORTED:
+		goto do_test;
+	default:
+		phydev_warn(phydev, "Unsupported Master/Slave mode\n");
+		return -ENOTSUPP;
+	}
+
+	changed = phy_modify_changed(phydev, MII_CFG1, MII_CFG1_MASTER_SLAVE, ctl);
+	if (changed < 0)
+		return changed;
+
+do_test:
+	ret = tja11xx_config_aneg_cable_test(phydev);
+	if (ret)
+		return ret;
+
+	return __genphy_config_aneg(phydev, changed);
+}
+
+static int tja11xx_get_interface_mode(struct phy_device *phydev)
+{
+	struct tja11xx_priv *priv = phydev->priv;
+	int mii_mode;
+
+	switch (phydev->interface) {
+	case PHY_INTERFACE_MODE_MII:
+		mii_mode = MII_CFG1_MII_MODE;
+		break;
+	case PHY_INTERFACE_MODE_REVMII:
+		mii_mode = MII_CFG1_REVMII_MODE;
+		break;
+	case PHY_INTERFACE_MODE_RMII:
+		if (priv->flags & TJA110X_RMII_MODE_REFCLK_IN)
+			mii_mode = MII_CFG1_RMII_MODE_REFCLK_IN;
+		else
+			mii_mode = MII_CFG1_RMII_MODE_REFCLK_OUT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return mii_mode;
+}
+
+static int tja11xx_config_init(struct phy_device *phydev)
+{
+	u16 reg_mask, reg_val;
+	int ret;
+
+	ret = tja11xx_enable_reg_write(phydev);
+	if (ret)
+		return ret;
+
+	phydev->autoneg = AUTONEG_DISABLE;
+	phydev->speed = SPEED_100;
+	phydev->duplex = DUPLEX_FULL;
+
+	switch (phydev->phy_id & PHY_ID_MASK) {
+	case PHY_ID_TJA1100:
+		reg_mask = MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_MASK |
+			   MII_CFG1_LED_ENABLE;
+		reg_val = MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_LINKUP |
+			  MII_CFG1_LED_ENABLE;
+
+		reg_mask |= MII_CFG1_INTERFACE_MODE_MASK;
+		ret = tja11xx_get_interface_mode(phydev);
+		if (ret < 0)
+			return ret;
+
+		reg_val |= (ret & 0xffff);
+		ret = phy_modify(phydev, MII_CFG1, reg_mask, reg_val);
+		if (ret)
+			return ret;
+		break;
+	case PHY_ID_TJA1101:
+		reg_mask = MII_CFG1_INTERFACE_MODE_MASK;
+		ret = tja11xx_get_interface_mode(phydev);
+		if (ret < 0)
+			return ret;
+
+		reg_val = ret & 0xffff;
+		ret = phy_modify(phydev, MII_CFG1, reg_mask, reg_val);
+		if (ret)
+			return ret;
+		fallthrough;
+	case PHY_ID_TJA1102:
+		ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
+		if (ret)
+			return ret;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = phy_clear_bits(phydev, MII_CFG1, MII_CFG1_SLEEP_CONFIRM);
+	if (ret)
+		return ret;
+
+	ret = phy_modify(phydev, MII_CFG2, MII_CFG2_SLEEP_REQUEST_TO,
+			 MII_CFG2_SLEEP_REQUEST_TO_16MS);
+	if (ret)
+		return ret;
+
+	ret = tja11xx_wakeup(phydev);
+	if (ret < 0)
+		return ret;
+
+	/* ACK interrupts by reading the status register */
+	ret = phy_read(phydev, MII_INTSRC);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int tja11xx_read_status(struct phy_device *phydev)
+{
+	int ret;
+
+	phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
+	phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
+
+	ret = genphy_update_link(phydev);
+	if (ret)
+		return ret;
+
+	ret = phy_read(phydev, MII_CFG1);
+	if (ret < 0)
+		return ret;
+
+	if (ret & MII_CFG1_MASTER_SLAVE)
+		phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
+	else
+		phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
+
+	if (phydev->link) {
+		ret = phy_read(phydev, MII_COMMSTAT);
+		if (ret < 0)
+			return ret;
+
+		if (!(ret & MII_COMMSTAT_LINK_UP))
+			phydev->link = 0;
+	}
+
+	return 0;
+}
+
+static int tja11xx_get_sqi(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_COMMSTAT);
+	if (ret < 0)
+		return ret;
+
+	return FIELD_GET(MII_COMMSTAT_SQI_STATE, ret);
+}
+
+static int tja11xx_get_sqi_max(struct phy_device *phydev)
+{
+	return MII_COMMSTAT_SQI_MAX;
+}
+
+static int tja11xx_get_sset_count(struct phy_device *phydev)
+{
+	return ARRAY_SIZE(tja11xx_hw_stats);
+}
+
+static void tja11xx_get_strings(struct phy_device *phydev, u8 *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
+		strncpy(data + i * ETH_GSTRING_LEN,
+			tja11xx_hw_stats[i].string, ETH_GSTRING_LEN);
+	}
+}
+
+static void tja11xx_get_stats(struct phy_device *phydev,
+			      struct ethtool_stats *stats, u64 *data)
+{
+	int i, ret;
+
+	for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
+		ret = phy_read(phydev, tja11xx_hw_stats[i].reg);
+		if (ret < 0)
+			data[i] = U64_MAX;
+		else {
+			data[i] = ret & tja11xx_hw_stats[i].mask;
+			data[i] >>= tja11xx_hw_stats[i].off;
+		}
+	}
+}
+
+static int tja11xx_hwmon_read(struct device *dev,
+			      enum hwmon_sensor_types type,
+			      u32 attr, int channel, long *value)
+{
+	struct phy_device *phydev = dev_get_drvdata(dev);
+	int ret;
+
+	if (type == hwmon_in && attr == hwmon_in_lcrit_alarm) {
+		ret = phy_read(phydev, MII_INTSRC);
+		if (ret < 0)
+			return ret;
+
+		*value = !!(ret & MII_INTSRC_TEMP_ERR);
+		return 0;
+	}
+
+	if (type == hwmon_temp && attr == hwmon_temp_crit_alarm) {
+		ret = phy_read(phydev, MII_INTSRC);
+		if (ret < 0)
+			return ret;
+
+		*value = !!(ret & MII_INTSRC_UV_ERR);
+		return 0;
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static umode_t tja11xx_hwmon_is_visible(const void *data,
+					enum hwmon_sensor_types type,
+					u32 attr, int channel)
+{
+	if (type == hwmon_in && attr == hwmon_in_lcrit_alarm)
+		return 0444;
+
+	if (type == hwmon_temp && attr == hwmon_temp_crit_alarm)
+		return 0444;
+
+	return 0;
+}
+
+static const struct hwmon_channel_info *tja11xx_hwmon_info[] = {
+	HWMON_CHANNEL_INFO(in, HWMON_I_LCRIT_ALARM),
+	HWMON_CHANNEL_INFO(temp, HWMON_T_CRIT_ALARM),
+	NULL
+};
+
+static const struct hwmon_ops tja11xx_hwmon_hwmon_ops = {
+	.is_visible	= tja11xx_hwmon_is_visible,
+	.read		= tja11xx_hwmon_read,
+};
+
+static const struct hwmon_chip_info tja11xx_hwmon_chip_info = {
+	.ops		= &tja11xx_hwmon_hwmon_ops,
+	.info		= tja11xx_hwmon_info,
+};
+
+static int tja11xx_hwmon_register(struct phy_device *phydev,
+				  struct tja11xx_priv *priv)
+{
+	struct device *dev = &phydev->mdio.dev;
+
+	priv->hwmon_name = devm_hwmon_sanitize_name(dev, dev_name(dev));
+	if (IS_ERR(priv->hwmon_name))
+		return PTR_ERR(priv->hwmon_name);
+
+	priv->hwmon_dev =
+		devm_hwmon_device_register_with_info(dev, priv->hwmon_name,
+						     phydev,
+						     &tja11xx_hwmon_chip_info,
+						     NULL);
+
+	return PTR_ERR_OR_ZERO(priv->hwmon_dev);
+}
+
+static int tja11xx_parse_dt(struct phy_device *phydev)
+{
+	struct device_node *node = phydev->mdio.dev.of_node;
+	struct tja11xx_priv *priv = phydev->priv;
+
+	if (!IS_ENABLED(CONFIG_OF_MDIO))
+		return 0;
+
+	if (of_property_read_bool(node, "nxp,rmii-refclk-in"))
+		priv->flags |= TJA110X_RMII_MODE_REFCLK_IN;
+
+	return 0;
+}
+
+static int tja11xx_probe(struct phy_device *phydev)
+{
+	struct device *dev = &phydev->mdio.dev;
+	struct tja11xx_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->phydev = phydev;
+	phydev->priv = priv;
+
+	ret = tja11xx_parse_dt(phydev);
+	if (ret)
+		return ret;
+
+	return tja11xx_hwmon_register(phydev, priv);
+}
+
+static void tja1102_p1_register(struct work_struct *work)
+{
+	struct tja11xx_priv *priv = container_of(work, struct tja11xx_priv,
+						 phy_register_work);
+	struct phy_device *phydev_phy0 = priv->phydev;
+	struct mii_bus *bus = phydev_phy0->mdio.bus;
+	struct device *dev = &phydev_phy0->mdio.dev;
+	struct device_node *np = dev->of_node;
+	struct device_node *child;
+	int ret;
+
+	for_each_available_child_of_node(np, child) {
+		struct phy_device *phy;
+		int addr;
+
+		addr = of_mdio_parse_addr(dev, child);
+		if (addr < 0) {
+			dev_err(dev, "Can't parse addr\n");
+			continue;
+		} else if (addr != phydev_phy0->mdio.addr + 1) {
+			/* Currently we care only about double PHY chip TJA1102.
+			 * If some day NXP will decide to bring chips with more
+			 * PHYs, this logic should be reworked.
+			 */
+			dev_err(dev, "Unexpected address. Should be: %i\n",
+				phydev_phy0->mdio.addr + 1);
+			continue;
+		}
+
+		if (mdiobus_is_registered_device(bus, addr)) {
+			dev_err(dev, "device is already registered\n");
+			continue;
+		}
+
+		/* Real PHY ID of Port 1 is 0 */
+		phy = phy_device_create(bus, addr, PHY_ID_TJA1102, false, NULL);
+		if (IS_ERR(phy)) {
+			dev_err(dev, "Can't create PHY device for Port 1: %i\n",
+				addr);
+			continue;
+		}
+
+		/* Overwrite parent device. phy_device_create() set parent to
+		 * the mii_bus->dev, which is not correct in case.
+		 */
+		phy->mdio.dev.parent = dev;
+
+		ret = of_mdiobus_phy_device_register(bus, phy, child, addr);
+		if (ret) {
+			/* All resources needed for Port 1 should be already
+			 * available for Port 0. Both ports use the same
+			 * interrupt line, so -EPROBE_DEFER would make no sense
+			 * here.
+			 */
+			dev_err(dev, "Can't register Port 1. Unexpected error: %i\n",
+				ret);
+			phy_device_free(phy);
+		}
+	}
+}
+
+static int tja1102_p0_probe(struct phy_device *phydev)
+{
+	struct device *dev = &phydev->mdio.dev;
+	struct tja11xx_priv *priv;
+	int ret;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->phydev = phydev;
+	INIT_WORK(&priv->phy_register_work, tja1102_p1_register);
+
+	ret = tja11xx_hwmon_register(phydev, priv);
+	if (ret)
+		return ret;
+
+	schedule_work(&priv->phy_register_work);
+
+	return 0;
+}
+
+static int tja1102_match_phy_device(struct phy_device *phydev, bool port0)
+{
+	int ret;
+
+	if ((phydev->phy_id & PHY_ID_MASK) != PHY_ID_TJA1102)
+		return 0;
+
+	ret = phy_read(phydev, MII_PHYSID2);
+	if (ret < 0)
+		return ret;
+
+	/* TJA1102 Port 1 has phyid 0 and doesn't support temperature
+	 * and undervoltage alarms.
+	 */
+	if (port0)
+		return ret ? 1 : 0;
+
+	return !ret;
+}
+
+static int tja1102_p0_match_phy_device(struct phy_device *phydev)
+{
+	return tja1102_match_phy_device(phydev, true);
+}
+
+static int tja1102_p1_match_phy_device(struct phy_device *phydev)
+{
+	return tja1102_match_phy_device(phydev, false);
+}
+
+static int tja11xx_ack_interrupt(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_INTSRC);
+
+	return (ret < 0) ? ret : 0;
+}
+
+static int tja11xx_config_intr(struct phy_device *phydev)
+{
+	int value = 0;
+	int err;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		err = tja11xx_ack_interrupt(phydev);
+		if (err)
+			return err;
+
+		value = MII_INTEN_LINK_FAIL | MII_INTEN_LINK_UP |
+			MII_INTEN_UV_ERR | MII_INTEN_TEMP_ERR;
+		err = phy_write(phydev, MII_INTEN, value);
+	} else {
+		err = phy_write(phydev, MII_INTEN, value);
+		if (err)
+			return err;
+
+		err = tja11xx_ack_interrupt(phydev);
+	}
+
+	return err;
+}
+
+static irqreturn_t tja11xx_handle_interrupt(struct phy_device *phydev)
+{
+	struct device *dev = &phydev->mdio.dev;
+	int irq_status;
+
+	irq_status = phy_read(phydev, MII_INTSRC);
+	if (irq_status < 0) {
+		phy_error(phydev);
+		return IRQ_NONE;
+	}
+
+	if (irq_status & MII_INTSRC_TEMP_ERR)
+		dev_warn(dev, "Overtemperature error detected (temp > 155C°).\n");
+	if (irq_status & MII_INTSRC_UV_ERR)
+		dev_warn(dev, "Undervoltage error detected.\n");
+
+	if (!(irq_status & MII_INTSRC_MASK))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
+}
+
+static int tja11xx_cable_test_start(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_clear_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
+	if (ret)
+		return ret;
+
+	ret = tja11xx_wakeup(phydev);
+	if (ret < 0)
+		return ret;
+
+	ret = tja11xx_disable_link_control(phydev);
+	if (ret < 0)
+		return ret;
+
+	return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CABLE_TEST);
+}
+
+/*
+ * | BI_DA+           | BI_DA-                 | Result
+ * | open             | open                   | open
+ * | + short to -     | - short to +           | short
+ * | short to Vdd     | open                   | open
+ * | open             | shot to Vdd            | open
+ * | short to Vdd     | short to Vdd           | short
+ * | shot to GND      | open                   | open
+ * | open             | shot to GND            | open
+ * | short to GND     | shot to GND            | short
+ * | connected to active link partner (master) | shot and open
+ */
+static int tja11xx_cable_test_report_trans(u32 result)
+{
+	u32 mask = MII_EXTSTAT_SHORT_DETECT | MII_EXTSTAT_OPEN_DETECT;
+
+	if ((result & mask) == mask) {
+		/* connected to active link partner (master) */
+		return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
+	} else if ((result & mask) == 0) {
+		return ETHTOOL_A_CABLE_RESULT_CODE_OK;
+	} else if (result & MII_EXTSTAT_SHORT_DETECT) {
+		return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT;
+	} else if (result & MII_EXTSTAT_OPEN_DETECT) {
+		return ETHTOOL_A_CABLE_RESULT_CODE_OPEN;
+	} else {
+		return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
+	}
+}
+
+static int tja11xx_cable_test_report(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_EXTSTAT);
+	if (ret < 0)
+		return ret;
+
+	ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+				tja11xx_cable_test_report_trans(ret));
+
+	return 0;
+}
+
+static int tja11xx_cable_test_get_status(struct phy_device *phydev,
+					 bool *finished)
+{
+	int ret;
+
+	*finished = false;
+
+	ret = phy_read(phydev, MII_ECTRL);
+	if (ret < 0)
+		return ret;
+
+	if (!(ret & MII_ECTRL_CABLE_TEST)) {
+		*finished = true;
+
+		ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
+		if (ret)
+			return ret;
+
+		return tja11xx_cable_test_report(phydev);
+	}
+
+	return 0;
+}
+
+static struct phy_driver tja11xx_driver[] = {
+	{
+		PHY_ID_MATCH_MODEL(PHY_ID_TJA1100),
+		.name		= "NXP TJA1100",
+		.features       = PHY_BASIC_T1_FEATURES,
+		.probe		= tja11xx_probe,
+		.soft_reset	= tja11xx_soft_reset,
+		.config_aneg	= tja11xx_config_aneg,
+		.config_init	= tja11xx_config_init,
+		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
+		.suspend	= genphy_suspend,
+		.resume		= genphy_resume,
+		.set_loopback   = genphy_loopback,
+		/* Statistics */
+		.get_sset_count = tja11xx_get_sset_count,
+		.get_strings	= tja11xx_get_strings,
+		.get_stats	= tja11xx_get_stats,
+	}, {
+		PHY_ID_MATCH_MODEL(PHY_ID_TJA1101),
+		.name		= "NXP TJA1101",
+		.features       = PHY_BASIC_T1_FEATURES,
+		.probe		= tja11xx_probe,
+		.soft_reset	= tja11xx_soft_reset,
+		.config_aneg	= tja11xx_config_aneg,
+		.config_init	= tja11xx_config_init,
+		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
+		.suspend	= genphy_suspend,
+		.resume		= genphy_resume,
+		.set_loopback   = genphy_loopback,
+		/* Statistics */
+		.get_sset_count = tja11xx_get_sset_count,
+		.get_strings	= tja11xx_get_strings,
+		.get_stats	= tja11xx_get_stats,
+	}, {
+		.name		= "NXP TJA1102 Port 0",
+		.features       = PHY_BASIC_T1_FEATURES,
+		.flags          = PHY_POLL_CABLE_TEST,
+		.probe		= tja1102_p0_probe,
+		.soft_reset	= tja11xx_soft_reset,
+		.config_aneg	= tja11xx_config_aneg,
+		.config_init	= tja11xx_config_init,
+		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
+		.match_phy_device = tja1102_p0_match_phy_device,
+		.suspend	= genphy_suspend,
+		.resume		= genphy_resume,
+		.set_loopback   = genphy_loopback,
+		/* Statistics */
+		.get_sset_count = tja11xx_get_sset_count,
+		.get_strings	= tja11xx_get_strings,
+		.get_stats	= tja11xx_get_stats,
+		.config_intr	= tja11xx_config_intr,
+		.handle_interrupt = tja11xx_handle_interrupt,
+		.cable_test_start = tja11xx_cable_test_start,
+		.cable_test_get_status = tja11xx_cable_test_get_status,
+	}, {
+		.name		= "NXP TJA1102 Port 1",
+		.features       = PHY_BASIC_T1_FEATURES,
+		.flags          = PHY_POLL_CABLE_TEST,
+		/* currently no probe for Port 1 is need */
+		.soft_reset	= tja11xx_soft_reset,
+		.config_aneg	= tja11xx_config_aneg,
+		.config_init	= tja11xx_config_init,
+		.read_status	= tja11xx_read_status,
+		.get_sqi	= tja11xx_get_sqi,
+		.get_sqi_max	= tja11xx_get_sqi_max,
+		.match_phy_device = tja1102_p1_match_phy_device,
+		.suspend	= genphy_suspend,
+		.resume		= genphy_resume,
+		.set_loopback   = genphy_loopback,
+		/* Statistics */
+		.get_sset_count = tja11xx_get_sset_count,
+		.get_strings	= tja11xx_get_strings,
+		.get_stats	= tja11xx_get_stats,
+		.config_intr	= tja11xx_config_intr,
+		.handle_interrupt = tja11xx_handle_interrupt,
+		.cable_test_start = tja11xx_cable_test_start,
+		.cable_test_get_status = tja11xx_cable_test_get_status,
+	}
+};
+
+module_phy_driver(tja11xx_driver);
+
+static struct mdio_device_id __maybe_unused tja11xx_tbl[] = {
+	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1100) },
+	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1101) },
+	{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1102) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(mdio, tja11xx_tbl);
+
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
+MODULE_DESCRIPTION("NXP TJA11xx BoardR-Reach PHY driver");
+MODULE_LICENSE("GPL");