1 files changed, 76 insertions, 13 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index a5fa077650e8..c3a0a5ee5f11 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -325,9 +325,13 @@ EXPORT_SYMBOL(phy_ethtool_ksettings_get);
 int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
 {
 	struct mii_ioctl_data *mii_data = if_mii(ifr);
+	struct kernel_hwtstamp_config kernel_cfg;
+	struct netlink_ext_ack extack = {};
 	u16 val = mii_data->val_in;
 	bool change_autoneg = false;
+	struct hwtstamp_config cfg;
 	int prtad, devad;
+	int ret;
 
 	switch (cmd) {
 	case SIOCGMIIPHY:
@@ -411,8 +415,21 @@ int phy_mii_ioctl(struct phy_device *phydev, struct ifreq *ifr, int cmd)
 		return 0;
 
 	case SIOCSHWTSTAMP:
-		if (phydev->mii_ts && phydev->mii_ts->hwtstamp)
-			return phydev->mii_ts->hwtstamp(phydev->mii_ts, ifr);
+		if (phydev->mii_ts && phydev->mii_ts->hwtstamp) {
+			if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
+				return -EFAULT;
+
+			hwtstamp_config_to_kernel(&kernel_cfg, &cfg);
+			ret = phydev->mii_ts->hwtstamp(phydev->mii_ts, &kernel_cfg, &extack);
+			if (ret)
+				return ret;
+
+			hwtstamp_config_from_kernel(&cfg, &kernel_cfg);
+			if (copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)))
+				return -EFAULT;
+
+			return 0;
+		}
 		fallthrough;
 
 	default:
@@ -469,7 +486,7 @@ int __phy_hwtstamp_get(struct phy_device *phydev,
 	if (!phydev)
 		return -ENODEV;
 
-	return phy_mii_ioctl(phydev, config->ifr, SIOCGHWTSTAMP);
+	return -EOPNOTSUPP;
 }
 
 /**
@@ -486,7 +503,10 @@ int __phy_hwtstamp_set(struct phy_device *phydev,
 	if (!phydev)
 		return -ENODEV;
 
-	return phy_mii_ioctl(phydev, config->ifr, SIOCSHWTSTAMP);
+	if (phydev->mii_ts && phydev->mii_ts->hwtstamp)
+		return phydev->mii_ts->hwtstamp(phydev->mii_ts, config, extack);
+
+	return -EOPNOTSUPP;
 }
 
 /**
@@ -963,9 +983,17 @@ static int phy_check_link_status(struct phy_device *phydev)
 	if (phydev->link && phydev->state != PHY_RUNNING) {
 		phy_check_downshift(phydev);
 		phydev->state = PHY_RUNNING;
+		err = genphy_c45_eee_is_active(phydev,
+					       NULL, NULL, NULL);
+		if (err < 0)
+			phydev->enable_tx_lpi = false;
+		else
+			phydev->enable_tx_lpi = (err & phydev->eee_cfg.tx_lpi_enabled);
+
 		phy_link_up(phydev);
 	} else if (!phydev->link && phydev->state != PHY_NOLINK) {
 		phydev->state = PHY_NOLINK;
+		phydev->enable_tx_lpi = false;
 		phy_link_down(phydev);
 	}
 
@@ -1270,7 +1298,6 @@ int phy_disable_interrupts(struct phy_device *phydev)
 static irqreturn_t phy_interrupt(int irq, void *phy_dat)
 {
 	struct phy_device *phydev = phy_dat;
-	struct phy_driver *drv = phydev->drv;
 	irqreturn_t ret;
 
 	/* Wakeup interrupts may occur during a system sleep transition.
@@ -1296,7 +1323,7 @@ static irqreturn_t phy_interrupt(int irq, void *phy_dat)
 	}
 
 	mutex_lock(&phydev->lock);
-	ret = drv->handle_interrupt(phydev);
+	ret = phydev->drv->handle_interrupt(phydev);
 	mutex_unlock(&phydev->lock);
 
 	return ret;
@@ -1612,12 +1639,12 @@ EXPORT_SYMBOL(phy_get_eee_err);
 /**
  * phy_ethtool_get_eee - get EEE supported and status
  * @phydev: target phy_device struct
- * @data: ethtool_eee data
+ * @data: ethtool_keee data
  *
- * Description: it reportes the Supported/Advertisement/LP Advertisement
- * capabilities.
+ * Description: reports the Supported/Advertisement/LP Advertisement
+ * capabilities, etc.
  */
-int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data)
+int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_keee *data)
 {
 	int ret;
 
@@ -1626,6 +1653,7 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data)
 
 	mutex_lock(&phydev->lock);
 	ret = genphy_c45_ethtool_get_eee(phydev, data);
+	eeecfg_to_eee(data, &phydev->eee_cfg);
 	mutex_unlock(&phydev->lock);
 
 	return ret;
@@ -1633,13 +1661,43 @@ int phy_ethtool_get_eee(struct phy_device *phydev, struct ethtool_eee *data)
 EXPORT_SYMBOL(phy_ethtool_get_eee);
 
 /**
+ * phy_ethtool_set_eee_noneg - Adjusts MAC LPI configuration without PHY
+ *			       renegotiation
+ * @phydev: pointer to the target PHY device structure
+ * @data: pointer to the ethtool_keee structure containing the new EEE settings
+ *
+ * This function updates the Energy Efficient Ethernet (EEE) configuration
+ * for cases where only the MAC's Low Power Idle (LPI) configuration changes,
+ * without triggering PHY renegotiation. It ensures that the MAC is properly
+ * informed of the new LPI settings by cycling the link down and up, which
+ * is necessary for the MAC to adopt the new configuration. This adjustment
+ * is done only if there is a change in the tx_lpi_enabled or tx_lpi_timer
+ * configuration.
+ */
+static void phy_ethtool_set_eee_noneg(struct phy_device *phydev,
+				      struct ethtool_keee *data)
+{
+	if (phydev->eee_cfg.tx_lpi_enabled != data->tx_lpi_enabled ||
+	    phydev->eee_cfg.tx_lpi_timer != data->tx_lpi_timer) {
+		eee_to_eeecfg(&phydev->eee_cfg, data);
+		phydev->enable_tx_lpi = eeecfg_mac_can_tx_lpi(&phydev->eee_cfg);
+		if (phydev->link) {
+			phydev->link = false;
+			phy_link_down(phydev);
+			phydev->link = true;
+			phy_link_up(phydev);
+		}
+	}
+}
+
+/**
  * phy_ethtool_set_eee - set EEE supported and status
  * @phydev: target phy_device struct
- * @data: ethtool_eee data
+ * @data: ethtool_keee data
  *
  * Description: it is to program the Advertisement EEE register.
  */
-int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
+int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_keee *data)
 {
 	int ret;
 
@@ -1648,9 +1706,14 @@ int phy_ethtool_set_eee(struct phy_device *phydev, struct ethtool_eee *data)
 
 	mutex_lock(&phydev->lock);
 	ret = genphy_c45_ethtool_set_eee(phydev, data);
+	if (ret >= 0) {
+		if (ret == 0)
+			phy_ethtool_set_eee_noneg(phydev, data);
+		eee_to_eeecfg(&phydev->eee_cfg, data);
+	}
 	mutex_unlock(&phydev->lock);
 
-	return ret;
+	return ret < 0 ? ret : 0;
 }
 EXPORT_SYMBOL(phy_ethtool_set_eee);