Merge branch 'net-lan743x-pci11010-pci11414-devices-enhancements'

Raju Lakkaraju says:

====================
net: lan743x: PCI11010 / PCI11414 devices Enhancements

This patch series continues with the addition of supported features for the
Ethernet function of the PCI11010 / PCI11414 devices to the LAN743x driver.
====================

Link: https://lore.kernel.org/r/20221024082516.661199-1-Raju.Lakkaraju@microchip.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/microchip/lan743x_ethtool.c

@@ -1233,6 +1233,50 @@ static void lan743x_get_regs(struct net_device *dev,
 	lan743x_common_regs(dev, regs, p);
 }
 
+static void lan743x_get_pauseparam(struct net_device *dev,
+				   struct ethtool_pauseparam *pause)
+{
+	struct lan743x_adapter *adapter = netdev_priv(dev);
+	struct lan743x_phy *phy = &adapter->phy;
+
+	if (phy->fc_request_control & FLOW_CTRL_TX)
+		pause->tx_pause = 1;
+	if (phy->fc_request_control & FLOW_CTRL_RX)
+		pause->rx_pause = 1;
+	pause->autoneg = phy->fc_autoneg;
+}
+
+static int lan743x_set_pauseparam(struct net_device *dev,
+				  struct ethtool_pauseparam *pause)
+{
+	struct lan743x_adapter *adapter = netdev_priv(dev);
+	struct phy_device *phydev = dev->phydev;
+	struct lan743x_phy *phy = &adapter->phy;
+
+	if (!phydev)
+		return -ENODEV;
+
+	if (!phy_validate_pause(phydev, pause))
+		return -EINVAL;
+
+	phy->fc_request_control = 0;
+	if (pause->rx_pause)
+		phy->fc_request_control |= FLOW_CTRL_RX;
+
+	if (pause->tx_pause)
+		phy->fc_request_control |= FLOW_CTRL_TX;
+
+	phy->fc_autoneg = pause->autoneg;
+
+	if (pause->autoneg == AUTONEG_DISABLE)
+		lan743x_mac_flow_ctrl_set_enables(adapter, pause->tx_pause,
+						  pause->rx_pause);
+	else
+		phy_set_asym_pause(phydev, pause->rx_pause,  pause->tx_pause);
+
+	return 0;
+}
+
 const struct ethtool_ops lan743x_ethtool_ops = {
 	.get_drvinfo = lan743x_ethtool_get_drvinfo,
 	.get_msglevel = lan743x_ethtool_get_msglevel,
@@ -1259,6 +1303,8 @@ const struct ethtool_ops lan743x_ethtool_ops = {
 	.set_link_ksettings = phy_ethtool_set_link_ksettings,
 	.get_regs_len = lan743x_get_regs_len,
 	.get_regs = lan743x_get_regs,
+	.get_pauseparam = lan743x_get_pauseparam,
+	.set_pauseparam = lan743x_set_pauseparam,
 #ifdef CONFIG_PM
 	.get_wol = lan743x_ethtool_get_wol,
 	.set_wol = lan743x_ethtool_set_wol,

drivers/net/ethernet/microchip/lan743x_main.c

@@ -1326,7 +1326,7 @@ static void lan743x_mac_close(struct lan743x_adapter *adapter)
 				 1, 1000, 20000, 100);
 }
 
-static void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter,
+void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter,
 				       bool tx_enable, bool rx_enable)
 {
 	u32 flow_setting = 0;

drivers/net/ethernet/microchip/lan743x_main.h

@@ -1159,5 +1159,7 @@ u32 lan743x_csr_read(struct lan743x_adapter *adapter, int offset);
 void lan743x_csr_write(struct lan743x_adapter *adapter, int offset, u32 data);
 int lan743x_hs_syslock_acquire(struct lan743x_adapter *adapter, u16 timeout);
 void lan743x_hs_syslock_release(struct lan743x_adapter *adapter);
+void lan743x_mac_flow_ctrl_set_enables(struct lan743x_adapter *adapter,
+				       bool tx_enable, bool rx_enable);
 
 #endif /* _LAN743X_H */

drivers/net/phy/micrel.c

@@ -1295,6 +1295,81 @@ static int ksz9131_config_init(struct phy_device *phydev)
 	return 0;
 }
 
+#define MII_KSZ9131_AUTO_MDIX		0x1C
+#define MII_KSZ9131_AUTO_MDI_SET	BIT(7)
+#define MII_KSZ9131_AUTO_MDIX_SWAP_OFF	BIT(6)
+
+static int ksz9131_mdix_update(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = phy_read(phydev, MII_KSZ9131_AUTO_MDIX);
+	if (ret < 0)
+		return ret;
+
+	if (ret & MII_KSZ9131_AUTO_MDIX_SWAP_OFF) {
+		if (ret & MII_KSZ9131_AUTO_MDI_SET)
+			phydev->mdix_ctrl = ETH_TP_MDI;
+		else
+			phydev->mdix_ctrl = ETH_TP_MDI_X;
+	} else {
+		phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
+	}
+
+	if (ret & MII_KSZ9131_AUTO_MDI_SET)
+		phydev->mdix = ETH_TP_MDI;
+	else
+		phydev->mdix = ETH_TP_MDI_X;
+
+	return 0;
+}
+
+static int ksz9131_config_mdix(struct phy_device *phydev, u8 ctrl)
+{
+	u16 val;
+
+	switch (ctrl) {
+	case ETH_TP_MDI:
+		val = MII_KSZ9131_AUTO_MDIX_SWAP_OFF |
+		      MII_KSZ9131_AUTO_MDI_SET;
+		break;
+	case ETH_TP_MDI_X:
+		val = MII_KSZ9131_AUTO_MDIX_SWAP_OFF;
+		break;
+	case ETH_TP_MDI_AUTO:
+		val = 0;
+		break;
+	default:
+		return 0;
+	}
+
+	return phy_modify(phydev, MII_KSZ9131_AUTO_MDIX,
+			  MII_KSZ9131_AUTO_MDIX_SWAP_OFF |
+			  MII_KSZ9131_AUTO_MDI_SET, val);
+}
+
+static int ksz9131_read_status(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = ksz9131_mdix_update(phydev);
+	if (ret < 0)
+		return ret;
+
+	return genphy_read_status(phydev);
+}
+
+static int ksz9131_config_aneg(struct phy_device *phydev)
+{
+	int ret;
+
+	ret = ksz9131_config_mdix(phydev, phydev->mdix_ctrl);
+	if (ret)
+		return ret;
+
+	return genphy_config_aneg(phydev);
+}
+
 #define KSZ8873MLL_GLOBAL_CONTROL_4	0x06
 #define KSZ8873MLL_GLOBAL_CONTROL_4_DUPLEX	BIT(6)
 #define KSZ8873MLL_GLOBAL_CONTROL_4_SPEED	BIT(4)
@@ -3304,6 +3379,8 @@ static struct phy_driver ksphy_driver[] = {
 	.probe		= kszphy_probe,
 	.config_init	= ksz9131_config_init,
 	.config_intr	= kszphy_config_intr,
+	.config_aneg	= ksz9131_config_aneg,
+	.read_status	= ksz9131_read_status,
 	.handle_interrupt = kszphy_handle_interrupt,
 	.get_sset_count = kszphy_get_sset_count,
 	.get_strings	= kszphy_get_strings,