Merge tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxgrafted

Pull io_uring fixes from Jens Axboe:

 - Fix a task_work add use-after-free with SQPOLL.

   The sqpoll thread could pop and complete the last request while
   io_req_normal_work_add() was still looking at them after the mpscq
   push.

   Use the same approach as DEFER_TASKRUN to protect from that, holding
   an RCU read lock across the add, and have exit wait for an RCU grace
   period for SQPOLL rings as well.

 - CQE32 ring fixes: correct the free entry check for 32b CQEs, zero the
   big_cqe for aux CQEs, and only post the dummy skip CQE on CQE_MIXED
   rings

 - Mark the source filter table as COW when cloning bpf filters, so
   registering another filter on the source doesn't modify the shared
   table in place

 - Initialize the task context before running the BPF loop

 - Requeue zcrx multishot receives stopped by a local resource

 - End a TX_TIMESTAMP multishot cmd when the CQ is full (lollipopkit)

* tag 'io_uring-7.3-20261002' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: fix task_work add use-after-free with SQPOLL
  io_uring/cmd_net: end TX_TIMESTAMP multishot when the CQ is full
  io_uring/zcrx: requeue multishot receives stopped by a local resource
  io_uring: initialize task context before running the BPF loop
  io_uring: zero big_cqe for aux CQEs on CQE32 rings
  io_uring: fix free entry check for 32b CQEs on CQE32 rings
  io_uring: only post the dummy skip CQE on CQE_MIXED rings
  io_uring/bpf_filter: mark source as COW when cloning filters

1 files changed, 900 insertions, 0 deletions

diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c
new file mode 100644
index 000000000..48487149c
--- /dev/null
+++ b/drivers/net/phy/smsc.c
@@ -0,0 +1,900 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * drivers/net/phy/smsc.c
+ *
+ * Driver for SMSC PHYs
+ *
+ * Author: Herbert Valerio Riedel
+ *
+ * Copyright (c) 2006 Herbert Valerio Riedel <hvr@gnu.org>
+ *
+ * Support added for SMSC LAN8187 and LAN8700 by steve.glendinning@shawell.net
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/of.h>
+#include <linux/phy.h>
+#include <linux/netdevice.h>
+#include <linux/crc16.h>
+#include <linux/etherdevice.h>
+#include <linux/smscphy.h>
+
+/* Vendor-specific PHY Definitions */
+/* EDPD NLP / crossover time configuration */
+#define PHY_EDPD_CONFIG			16
+#define PHY_EDPD_CONFIG_EXT_CROSSOVER_	0x0001
+
+/* Control/Status Indication Register */
+#define SPECIAL_CTRL_STS		27
+#define SPECIAL_CTRL_STS_OVRRD_AMDIX_	0x8000
+#define SPECIAL_CTRL_STS_AMDIX_ENABLE_	0x4000
+#define SPECIAL_CTRL_STS_AMDIX_STATE_	0x2000
+
+#define EDPD_MAX_WAIT_DFLT_MS		640
+/* interval between phylib state machine runs in ms */
+#define PHY_STATE_MACH_MS		1000
+
+struct smsc_hw_stat {
+	const char *string;
+	u8 reg;
+	u8 bits;
+};
+
+static struct smsc_hw_stat smsc_hw_stats[] = {
+	{ "phy_symbol_errors", 26, 16},
+};
+
+struct smsc_phy_priv {
+	unsigned int edpd_enable:1;
+	unsigned int edpd_mode_set_by_user:1;
+	unsigned int edpd_max_wait_ms;
+	bool wol_arp;
+};
+
+static int smsc_phy_ack_interrupt(struct phy_device *phydev)
+{
+	int rc = phy_read(phydev, MII_LAN83C185_ISF);
+
+	return rc < 0 ? rc : 0;
+}
+
+int smsc_phy_config_intr(struct phy_device *phydev)
+{
+	int rc;
+
+	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+		rc = smsc_phy_ack_interrupt(phydev);
+		if (rc)
+			return rc;
+
+		rc = phy_write(phydev, MII_LAN83C185_IM,
+			       MII_LAN83C185_ISF_INT_PHYLIB_EVENTS);
+	} else {
+		rc = phy_write(phydev, MII_LAN83C185_IM, 0);
+		if (rc)
+			return rc;
+
+		rc = smsc_phy_ack_interrupt(phydev);
+	}
+
+	return rc < 0 ? rc : 0;
+}
+EXPORT_SYMBOL_GPL(smsc_phy_config_intr);
+
+static int smsc_phy_config_edpd(struct phy_device *phydev)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+
+	if (priv->edpd_enable)
+		return phy_set_bits(phydev, MII_LAN83C185_CTRL_STATUS,
+				    MII_LAN83C185_EDPWRDOWN);
+	else
+		return phy_clear_bits(phydev, MII_LAN83C185_CTRL_STATUS,
+				      MII_LAN83C185_EDPWRDOWN);
+}
+
+irqreturn_t smsc_phy_handle_interrupt(struct phy_device *phydev)
+{
+	int irq_status;
+
+	irq_status = phy_read(phydev, MII_LAN83C185_ISF);
+	if (irq_status < 0) {
+		if (irq_status != -ENODEV)
+			phy_error(phydev);
+
+		return IRQ_NONE;
+	}
+
+	if (!(irq_status & MII_LAN83C185_ISF_INT_PHYLIB_EVENTS))
+		return IRQ_NONE;
+
+	phy_trigger_machine(phydev);
+
+	return IRQ_HANDLED;
+}
+EXPORT_SYMBOL_GPL(smsc_phy_handle_interrupt);
+
+int smsc_phy_config_init(struct phy_device *phydev)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+
+	if (!priv)
+		return 0;
+
+	/* don't use EDPD in irq mode except overridden by user */
+	if (!priv->edpd_mode_set_by_user && phydev->irq != PHY_POLL)
+		priv->edpd_enable = false;
+
+	return smsc_phy_config_edpd(phydev);
+}
+EXPORT_SYMBOL_GPL(smsc_phy_config_init);
+
+static int smsc_phy_reset(struct phy_device *phydev)
+{
+	int rc = phy_read(phydev, MII_LAN83C185_SPECIAL_MODES);
+	if (rc < 0)
+		return rc;
+
+	/* If the SMSC PHY is in power down mode, then set it
+	 * in all capable mode before using it.
+	 */
+	if ((rc & MII_LAN83C185_MODE_MASK) == MII_LAN83C185_MODE_POWERDOWN) {
+		/* set "all capable" mode */
+		rc |= MII_LAN83C185_MODE_ALL;
+		phy_write(phydev, MII_LAN83C185_SPECIAL_MODES, rc);
+	}
+
+	/* reset the phy */
+	return genphy_soft_reset(phydev);
+}
+
+static int lan87xx_config_aneg(struct phy_device *phydev)
+{
+	u8 mdix_ctrl;
+	int val;
+	int rc;
+
+	/* When auto-negotiation is disabled (forced mode), the PHY's
+	 * Auto-MDIX will continue toggling the TX/RX pairs.
+	 *
+	 * To establish a stable link, we must select a fixed MDI mode.
+	 * If the user has not specified a fixed MDI mode (i.e., mdix_ctrl is
+	 * 'auto'), we default to ETH_TP_MDI. This choice of a ETH_TP_MDI mode
+	 * mirrors the behavior the hardware would exhibit if the AUTOMDIX_EN
+	 * strap were configured for a fixed MDI connection.
+	 */
+	if (phydev->autoneg == AUTONEG_DISABLE) {
+		if (phydev->mdix_ctrl == ETH_TP_MDI_AUTO)
+			mdix_ctrl = ETH_TP_MDI;
+		else
+			mdix_ctrl = phydev->mdix_ctrl;
+	} else {
+		mdix_ctrl = phydev->mdix_ctrl;
+	}
+
+	switch (mdix_ctrl) {
+	case ETH_TP_MDI:
+		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_;
+		break;
+	case ETH_TP_MDI_X:
+		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_STATE_;
+		break;
+	case ETH_TP_MDI_AUTO:
+		val = SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_;
+		break;
+	default:
+		return genphy_config_aneg(phydev);
+	}
+
+	rc = phy_read(phydev, SPECIAL_CTRL_STS);
+	if (rc < 0)
+		return rc;
+
+	rc &= ~(SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+		SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+		SPECIAL_CTRL_STS_AMDIX_STATE_);
+	rc |= val;
+	phy_write(phydev, SPECIAL_CTRL_STS, rc);
+
+	phydev->mdix = mdix_ctrl;
+	return genphy_config_aneg(phydev);
+}
+
+static int lan95xx_config_aneg_ext(struct phy_device *phydev)
+{
+	if (phydev->phy_id == 0x0007c0f0) { /* LAN9500A or LAN9505A */
+		/* Extend Manual AutoMDIX timer */
+		int rc = phy_set_bits(phydev, PHY_EDPD_CONFIG,
+				      PHY_EDPD_CONFIG_EXT_CROSSOVER_);
+
+		if (rc < 0)
+			return rc;
+	}
+
+	return lan87xx_config_aneg(phydev);
+}
+
+/*
+ * The LAN87xx suffers from rare absence of the ENERGYON-bit when Ethernet cable
+ * plugs in while LAN87xx is in Energy Detect Power-Down mode. This leads to
+ * unstable detection of plugging in Ethernet cable.
+ * This workaround disables Energy Detect Power-Down mode and waiting for
+ * response on link pulses to detect presence of plugged Ethernet cable.
+ * The Energy Detect Power-Down mode is enabled again in the end of procedure to
+ * save approximately 220 mW of power if cable is unplugged.
+ * The workaround is only applicable to poll mode. Energy Detect Power-Down may
+ * not be used in interrupt mode lest link change detection becomes unreliable.
+ */
+int lan87xx_read_status(struct phy_device *phydev)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+	int err;
+
+	err = genphy_read_status(phydev);
+	if (err)
+		return err;
+
+	if (!phydev->link && priv && priv->edpd_enable &&
+	    priv->edpd_max_wait_ms) {
+		unsigned int max_wait = priv->edpd_max_wait_ms * 1000;
+		int rc;
+
+		/* Disable EDPD to wake up PHY */
+		rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
+		if (rc < 0)
+			return rc;
+
+		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
+			       rc & ~MII_LAN83C185_EDPWRDOWN);
+		if (rc < 0)
+			return rc;
+
+		/* Wait max 640 ms to detect energy and the timeout is not
+		 * an actual error.
+		 */
+		read_poll_timeout(phy_read, rc,
+				  rc & MII_LAN83C185_ENERGYON || rc < 0,
+				  10000, max_wait, true, phydev,
+				  MII_LAN83C185_CTRL_STATUS);
+		if (rc < 0)
+			return rc;
+
+		/* Re-enable EDPD */
+		rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS);
+		if (rc < 0)
+			return rc;
+
+		rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS,
+			       rc | MII_LAN83C185_EDPWRDOWN);
+		if (rc < 0)
+			return rc;
+	}
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(lan87xx_read_status);
+
+static int lan87xx_phy_config_init(struct phy_device *phydev)
+{
+	int rc;
+
+	/* The LAN87xx PHY's initial MDI-X mode is determined by the AUTOMDIX_EN
+	 * hardware strap, but the driver cannot read the strap's status. This
+	 * creates an unpredictable initial state.
+	 *
+	 * To ensure consistent and reliable behavior across all boards,
+	 * override the strap configuration on initialization and force the PHY
+	 * into a known state with Auto-MDIX enabled, which is the expected
+	 * default for modern hardware.
+	 */
+	rc = phy_modify(phydev, SPECIAL_CTRL_STS,
+			SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
+			SPECIAL_CTRL_STS_AMDIX_STATE_,
+			SPECIAL_CTRL_STS_OVRRD_AMDIX_ |
+			SPECIAL_CTRL_STS_AMDIX_ENABLE_);
+	if (rc < 0)
+		return rc;
+
+	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
+
+	return smsc_phy_config_init(phydev);
+}
+
+static int lan874x_phy_config_init(struct phy_device *phydev)
+{
+	u16 val;
+	int rc;
+
+	/* Setup LED2/nINT/nPME pin to function as nPME.  May need user option
+	 * to use LED1/nINT/nPME.
+	 */
+	val = MII_LAN874X_PHY_PME2_SET;
+
+	/* The bits MII_LAN874X_PHY_WOL_PFDA_FR, MII_LAN874X_PHY_WOL_WUFR,
+	 * MII_LAN874X_PHY_WOL_MPR, and MII_LAN874X_PHY_WOL_BCAST_FR need to
+	 * be cleared to de-assert PME signal after a WoL event happens, but
+	 * using PME auto clear gets around that.
+	 */
+	val |= MII_LAN874X_PHY_PME_SELF_CLEAR;
+	rc = phy_write_mmd(phydev, MDIO_MMD_PCS, MII_LAN874X_PHY_MMD_WOL_WUCSR,
+			   val);
+	if (rc < 0)
+		return rc;
+
+	/* set nPME self clear delay time */
+	rc = phy_write_mmd(phydev, MDIO_MMD_PCS, MII_LAN874X_PHY_MMD_MCFGR,
+			   MII_LAN874X_PHY_PME_SELF_CLEAR_DELAY);
+	if (rc < 0)
+		return rc;
+
+	return smsc_phy_config_init(phydev);
+}
+
+static void lan874x_get_wol(struct phy_device *phydev,
+			    struct ethtool_wolinfo *wol)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+	int rc;
+
+	wol->supported = (WAKE_UCAST | WAKE_BCAST | WAKE_MAGIC |
+			  WAKE_ARP | WAKE_MCAST);
+	wol->wolopts = 0;
+
+	rc = phy_read_mmd(phydev, MDIO_MMD_PCS, MII_LAN874X_PHY_MMD_WOL_WUCSR);
+	if (rc < 0)
+		return;
+
+	if (rc & MII_LAN874X_PHY_WOL_PFDAEN)
+		wol->wolopts |= WAKE_UCAST;
+
+	if (rc & MII_LAN874X_PHY_WOL_BCSTEN)
+		wol->wolopts |= WAKE_BCAST;
+
+	if (rc & MII_LAN874X_PHY_WOL_MPEN)
+		wol->wolopts |= WAKE_MAGIC;
+
+	if (rc & MII_LAN874X_PHY_WOL_WUEN) {
+		if (priv->wol_arp)
+			wol->wolopts |= WAKE_ARP;
+		else
+			wol->wolopts |= WAKE_MCAST;
+	}
+}
+
+static u16 smsc_crc16(const u8 *buffer, size_t len)
+{
+	return bitrev16(crc16(0xFFFF, buffer, len));
+}
+
+static int lan874x_chk_wol_pattern(const u8 pattern[], const u16 *mask,
+				   u8 len, u8 *data, u8 *datalen)
+{
+	size_t i, j, k;
+	int ret = 0;
+	u16 bits;
+
+	/* Pattern filtering can match up to 128 bytes of frame data.  There
+	 * are 8 registers to program the 16-bit masks, where each bit means
+	 * the byte will be compared.  The frame data will then go through a
+	 * CRC16 calculation for hardware comparison.  This helper function
+	 * makes sure only relevant frame data are included in this
+	 * calculation.  It provides a warning when the masks and expected
+	 * data size do not match.
+	 */
+	i = 0;
+	k = 0;
+	while (len > 0) {
+		bits = *mask;
+		for (j = 0; j < 16; j++, i++, len--) {
+			/* No more pattern. */
+			if (!len) {
+				/* The rest of bitmap is not empty. */
+				if (bits)
+					ret = i + 1;
+				break;
+			}
+			if (bits & 1)
+				data[k++] = pattern[i];
+			bits >>= 1;
+		}
+		mask++;
+	}
+	*datalen = k;
+	return ret;
+}
+
+static int lan874x_set_wol_pattern(struct phy_device *phydev, u16 val,
+				   const u8 data[], u8 datalen,
+				   const u16 *mask, u8 masklen)
+{
+	u16 crc, reg;
+	int rc;
+
+	/* Starting pattern offset is set before calling this function. */
+	val |= MII_LAN874X_PHY_WOL_FILTER_EN;
+	rc = phy_write_mmd(phydev, MDIO_MMD_PCS,
+			   MII_LAN874X_PHY_MMD_WOL_WUF_CFGA, val);
+	if (rc < 0)
+		return rc;
+
+	crc = smsc_crc16(data, datalen);
+	rc = phy_write_mmd(phydev, MDIO_MMD_PCS,
+			   MII_LAN874X_PHY_MMD_WOL_WUF_CFGB, crc);
+	if (rc < 0)
+		return rc;
+
+	masklen = (masklen + 15) & ~0xf;
+	reg = MII_LAN874X_PHY_MMD_WOL_WUF_MASK7;
+	while (masklen >= 16) {
+		rc = phy_write_mmd(phydev, MDIO_MMD_PCS, reg, *mask);
+		if (rc < 0)
+			return rc;
+		reg--;
+		mask++;
+		masklen -= 16;
+	}
+
+	/* Clear out the rest of mask registers. */
+	while (reg != MII_LAN874X_PHY_MMD_WOL_WUF_MASK0) {
+		phy_write_mmd(phydev, MDIO_MMD_PCS, reg, 0);
+		reg--;
+	}
+	return rc;
+}
+
+static int lan874x_set_wol(struct phy_device *phydev,
+			   struct ethtool_wolinfo *wol)
+{
+	struct net_device *ndev = phydev->attached_dev;
+	struct smsc_phy_priv *priv = phydev->priv;
+	u16 val, val_wucsr;
+	u8 data[128];
+	u8 datalen;
+	int rc;
+
+	/* lan874x has only one WoL filter pattern */
+	if ((wol->wolopts & (WAKE_ARP | WAKE_MCAST)) ==
+	    (WAKE_ARP | WAKE_MCAST)) {
+		phydev_info(phydev,
+			    "lan874x WoL supports one of ARP|MCAST at a time\n");
+		return -EOPNOTSUPP;
+	}
+
+	rc = phy_read_mmd(phydev, MDIO_MMD_PCS, MII_LAN874X_PHY_MMD_WOL_WUCSR);
+	if (rc < 0)
+		return rc;
+
+	val_wucsr = rc;
+
+	if (wol->wolopts & WAKE_UCAST)
+		val_wucsr |= MII_LAN874X_PHY_WOL_PFDAEN;
+	else
+		val_wucsr &= ~MII_LAN874X_PHY_WOL_PFDAEN;
+
+	if (wol->wolopts & WAKE_BCAST)
+		val_wucsr |= MII_LAN874X_PHY_WOL_BCSTEN;
+	else
+		val_wucsr &= ~MII_LAN874X_PHY_WOL_BCSTEN;
+
+	if (wol->wolopts & WAKE_MAGIC)
+		val_wucsr |= MII_LAN874X_PHY_WOL_MPEN;
+	else
+		val_wucsr &= ~MII_LAN874X_PHY_WOL_MPEN;
+
+	/* Need to use pattern matching */
+	if (wol->wolopts & (WAKE_ARP | WAKE_MCAST))
+		val_wucsr |= MII_LAN874X_PHY_WOL_WUEN;
+	else
+		val_wucsr &= ~MII_LAN874X_PHY_WOL_WUEN;
+
+	if (wol->wolopts & WAKE_ARP) {
+		const u8 pattern[2] = { 0x08, 0x06 };
+		const u16 mask[1] = { 0x0003 };
+
+		rc = lan874x_chk_wol_pattern(pattern, mask, 2, data,
+					     &datalen);
+		if (rc)
+			phydev_dbg(phydev, "pattern not valid at %d\n", rc);
+
+		/* Need to match broadcast destination address and provided
+		 * data pattern at offset 12.
+		 */
+		val = 12 | MII_LAN874X_PHY_WOL_FILTER_BCSTEN;
+		rc = lan874x_set_wol_pattern(phydev, val, data, datalen, mask,
+					     2);
+		if (rc < 0)
+			return rc;
+		priv->wol_arp = true;
+	}
+
+	if (wol->wolopts & WAKE_MCAST) {
+		/* Need to match multicast destination address. */
+		val = MII_LAN874X_PHY_WOL_FILTER_MCASTTEN;
+		rc = lan874x_set_wol_pattern(phydev, val, data, 0, NULL, 0);
+		if (rc < 0)
+			return rc;
+		priv->wol_arp = false;
+	}
+
+	if (wol->wolopts & (WAKE_MAGIC | WAKE_UCAST)) {
+		const u8 *mac = (const u8 *)ndev->dev_addr;
+		int i, reg;
+
+		reg = MII_LAN874X_PHY_MMD_WOL_RX_ADDRC;
+		for (i = 0; i < 6; i += 2, reg--) {
+			rc = phy_write_mmd(phydev, MDIO_MMD_PCS, reg,
+					   ((mac[i + 1] << 8) | mac[i]));
+			if (rc < 0)
+				return rc;
+		}
+	}
+
+	rc = phy_write_mmd(phydev, MDIO_MMD_PCS, MII_LAN874X_PHY_MMD_WOL_WUCSR,
+			   val_wucsr);
+	if (rc < 0)
+		return rc;
+
+	return 0;
+}
+
+static int smsc_get_sset_count(struct phy_device *phydev)
+{
+	return ARRAY_SIZE(smsc_hw_stats);
+}
+
+static void smsc_get_strings(struct phy_device *phydev, u8 *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++)
+		ethtool_puts(&data, smsc_hw_stats[i].string);
+}
+
+static u64 smsc_get_stat(struct phy_device *phydev, int i)
+{
+	struct smsc_hw_stat stat = smsc_hw_stats[i];
+	int val;
+	u64 ret;
+
+	val = phy_read(phydev, stat.reg);
+	if (val < 0)
+		ret = U64_MAX;
+	else
+		ret = val;
+
+	return ret;
+}
+
+static void smsc_get_stats(struct phy_device *phydev,
+			   struct ethtool_stats *stats, u64 *data)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(smsc_hw_stats); i++)
+		data[i] = smsc_get_stat(phydev, i);
+}
+
+static int smsc_phy_get_edpd(struct phy_device *phydev, u16 *edpd)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+
+	if (!priv)
+		return -EOPNOTSUPP;
+
+	if (!priv->edpd_enable)
+		*edpd = ETHTOOL_PHY_EDPD_DISABLE;
+	else if (!priv->edpd_max_wait_ms)
+		*edpd = ETHTOOL_PHY_EDPD_NO_TX;
+	else
+		*edpd = PHY_STATE_MACH_MS + priv->edpd_max_wait_ms;
+
+	return 0;
+}
+
+static int smsc_phy_set_edpd(struct phy_device *phydev, u16 edpd)
+{
+	struct smsc_phy_priv *priv = phydev->priv;
+
+	if (!priv)
+		return -EOPNOTSUPP;
+
+	switch (edpd) {
+	case ETHTOOL_PHY_EDPD_DISABLE:
+		priv->edpd_enable = false;
+		break;
+	case ETHTOOL_PHY_EDPD_NO_TX:
+		priv->edpd_enable = true;
+		priv->edpd_max_wait_ms = 0;
+		break;
+	case ETHTOOL_PHY_EDPD_DFLT_TX_MSECS:
+		edpd = PHY_STATE_MACH_MS + EDPD_MAX_WAIT_DFLT_MS;
+		fallthrough;
+	default:
+		if (phydev->irq != PHY_POLL)
+			return -EOPNOTSUPP;
+		if (edpd < PHY_STATE_MACH_MS || edpd > PHY_STATE_MACH_MS + 1000)
+			return -EINVAL;
+		priv->edpd_enable = true;
+		priv->edpd_max_wait_ms = edpd - PHY_STATE_MACH_MS;
+	}
+
+	priv->edpd_mode_set_by_user = true;
+
+	return smsc_phy_config_edpd(phydev);
+}
+
+int smsc_phy_get_tunable(struct phy_device *phydev,
+			 struct ethtool_tunable *tuna, void *data)
+{
+	switch (tuna->id) {
+	case ETHTOOL_PHY_EDPD:
+		return smsc_phy_get_edpd(phydev, data);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+EXPORT_SYMBOL_GPL(smsc_phy_get_tunable);
+
+int smsc_phy_set_tunable(struct phy_device *phydev,
+			 struct ethtool_tunable *tuna, const void *data)
+{
+	switch (tuna->id) {
+	case ETHTOOL_PHY_EDPD:
+		return smsc_phy_set_edpd(phydev, *(u16 *)data);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+EXPORT_SYMBOL_GPL(smsc_phy_set_tunable);
+
+int smsc_phy_probe(struct phy_device *phydev)
+{
+	struct device *dev = &phydev->mdio.dev;
+	struct smsc_phy_priv *priv;
+	struct clk *refclk;
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->edpd_enable = true;
+	priv->edpd_max_wait_ms = EDPD_MAX_WAIT_DFLT_MS;
+
+	if (device_property_present(dev, "smsc,disable-energy-detect"))
+		priv->edpd_enable = false;
+
+	phydev->priv = priv;
+
+	/* Make clk optional to keep DTB backward compatibility. */
+	refclk = devm_clk_get_optional_enabled_with_rate(dev, NULL,
+							 50 * 1000 * 1000);
+	if (IS_ERR(refclk))
+		return dev_err_probe(dev, PTR_ERR(refclk),
+				     "Failed to request clock\n");
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(smsc_phy_probe);
+
+static struct phy_driver smsc_phy_driver[] = {
+{
+	.phy_id		= 0x0007c0a0, /* OUI=0x00800f, Model#=0x0a */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN83C185",
+
+	/* PHY_BASIC_FEATURES */
+
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.config_init	= smsc_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	.phy_id		= 0x0007c0b0, /* OUI=0x00800f, Model#=0x0b */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN8187",
+
+	/* PHY_BASIC_FEATURES */
+
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.config_init	= smsc_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	/* Statistics */
+	.get_sset_count = smsc_get_sset_count,
+	.get_strings	= smsc_get_strings,
+	.get_stats	= smsc_get_stats,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	/* This covers internal PHY (phy_id: 0x0007C0C3) for
+	 * LAN9500 (PID: 0x9500), LAN9514 (PID: 0xec00), LAN9505 (PID: 0x9505)
+	 */
+	.phy_id		= 0x0007c0c0, /* OUI=0x00800f, Model#=0x0c */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN8700",
+
+	/* PHY_BASIC_FEATURES */
+
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.read_status	= lan87xx_read_status,
+	.config_init	= lan87xx_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+	.config_aneg	= lan87xx_config_aneg,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	/* Statistics */
+	.get_sset_count = smsc_get_sset_count,
+	.get_strings	= smsc_get_strings,
+	.get_stats	= smsc_get_stats,
+
+	.get_tunable	= smsc_phy_get_tunable,
+	.set_tunable	= smsc_phy_set_tunable,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	.phy_id		= 0x0007c0d0, /* OUI=0x00800f, Model#=0x0d */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN911x Internal PHY",
+
+	/* PHY_BASIC_FEATURES */
+
+	.probe		= smsc_phy_probe,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	/* This covers internal PHY (phy_id: 0x0007C0F0) for
+	 * LAN9500A (PID: 0x9E00), LAN9505A (PID: 0x9E01)
+	 */
+	.phy_id		= 0x0007c0f0, /* OUI=0x00800f, Model#=0x0f */
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN8710/LAN8720",
+
+	/* PHY_BASIC_FEATURES */
+
+	.flags		= PHY_RST_AFTER_CLK_EN,
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.read_status	= lan87xx_read_status,
+	.config_init	= smsc_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+	.config_aneg	= lan95xx_config_aneg_ext,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	/* Statistics */
+	.get_sset_count = smsc_get_sset_count,
+	.get_strings	= smsc_get_strings,
+	.get_stats	= smsc_get_stats,
+
+	.get_tunable	= smsc_phy_get_tunable,
+	.set_tunable	= smsc_phy_set_tunable,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	.phy_id		= 0x0007c110,
+	.phy_id_mask	= 0xfffffff0,
+	.name		= "SMSC LAN8740",
+
+	/* PHY_BASIC_FEATURES */
+	.flags		= PHY_RST_AFTER_CLK_EN,
+
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.read_status	= lan87xx_read_status,
+	.config_init	= lan874x_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	/* Statistics */
+	.get_sset_count = smsc_get_sset_count,
+	.get_strings	= smsc_get_strings,
+	.get_stats	= smsc_get_stats,
+
+	.get_tunable	= smsc_phy_get_tunable,
+	.set_tunable	= smsc_phy_set_tunable,
+
+	/* WoL */
+	.set_wol	= lan874x_set_wol,
+	.get_wol	= lan874x_get_wol,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+}, {
+	.phy_id		= 0x0007c130,	/* 0x0007c130 and 0x0007c131 */
+	/* This mask (0xfffffff2) is to differentiate from
+	 * LAN88xx (phy_id 0x0007c132)
+	 * and allows future phy_id revisions.
+	 */
+	.phy_id_mask	= 0xfffffff2,
+	.name		= "Microchip LAN8742",
+
+	/* PHY_BASIC_FEATURES */
+	.flags		= PHY_RST_AFTER_CLK_EN,
+
+	.probe		= smsc_phy_probe,
+
+	/* basic functions */
+	.read_status	= lan87xx_read_status,
+	.config_init	= lan874x_phy_config_init,
+	.soft_reset	= smsc_phy_reset,
+
+	/* IRQ related */
+	.config_intr	= smsc_phy_config_intr,
+	.handle_interrupt = smsc_phy_handle_interrupt,
+
+	/* Statistics */
+	.get_sset_count = smsc_get_sset_count,
+	.get_strings	= smsc_get_strings,
+	.get_stats	= smsc_get_stats,
+
+	.get_tunable	= smsc_phy_get_tunable,
+	.set_tunable	= smsc_phy_set_tunable,
+
+	/* WoL */
+	.set_wol	= lan874x_set_wol,
+	.get_wol	= lan874x_get_wol,
+
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
+} };
+
+module_phy_driver(smsc_phy_driver);
+
+MODULE_DESCRIPTION("SMSC PHY driver");
+MODULE_AUTHOR("Herbert Valerio Riedel");
+MODULE_LICENSE("GPL");
+
+static const struct mdio_device_id __maybe_unused smsc_tbl[] = {
+	{ 0x0007c0a0, 0xfffffff0 },
+	{ 0x0007c0b0, 0xfffffff0 },
+	{ 0x0007c0c0, 0xfffffff0 },
+	{ 0x0007c0d0, 0xfffffff0 },
+	{ 0x0007c0f0, 0xfffffff0 },
+	{ 0x0007c110, 0xfffffff0 },
+	{ 0x0007c130, 0xfffffff2 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(mdio, smsc_tbl);