Merging upstream version 6.9.7.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 9 deletions

diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index 3376e58e2b..c4236564c1 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -983,9 +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 = 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);
 	}
 
@@ -1290,7 +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.
@@ -1316,7 +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;
@@ -1632,12 +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;
 
@@ -1646,6 +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;
@@ -1653,13 +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;
 
@@ -1668,9 +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);