1 files changed, 57 insertions, 13 deletions

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index a19c84cad0e..be02168f130 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -198,6 +198,19 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	}
 
 	ecmd->autoneg = hw->mac.autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE;
+
+	/* MDI-X => 2; MDI =>1; Invalid =>0 */
+	if (hw->phy.media_type == e1000_media_type_copper)
+		ecmd->eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :
+						      ETH_TP_MDI;
+	else
+		ecmd->eth_tp_mdix = ETH_TP_MDI_INVALID;
+
+	if (hw->phy.mdix == AUTO_ALL_MODES)
+		ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;
+	else
+		ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;
+
 	return 0;
 }
 
@@ -209,11 +222,27 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	/* When SoL/IDER sessions are active, autoneg/speed/duplex
 	 * cannot be changed */
 	if (igb_check_reset_block(hw)) {
-		dev_err(&adapter->pdev->dev, "Cannot change link "
-			"characteristics when SoL/IDER is active.\n");
+		dev_err(&adapter->pdev->dev,
+			"Cannot change link characteristics when SoL/IDER is active.\n");
 		return -EINVAL;
 	}
 
+	/*
+	 * MDI setting is only allowed when autoneg enabled because
+	 * some hardware doesn't allow MDI setting when speed or
+	 * duplex is forced.
+	 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		if (hw->phy.media_type != e1000_media_type_copper)
+			return -EOPNOTSUPP;
+
+		if ((ecmd->eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO) &&
+		    (ecmd->autoneg != AUTONEG_ENABLE)) {
+			dev_err(&adapter->pdev->dev, "forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");
+			return -EINVAL;
+		}
+	}
+
 	while (test_and_set_bit(__IGB_RESETTING, &adapter->state))
 		msleep(1);
 
@@ -227,12 +256,25 @@ static int igb_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 			hw->fc.requested_mode = e1000_fc_default;
 	} else {
 		u32 speed = ethtool_cmd_speed(ecmd);
+		/* calling this overrides forced MDI setting */
 		if (igb_set_spd_dplx(adapter, speed, ecmd->duplex)) {
 			clear_bit(__IGB_RESETTING, &adapter->state);
 			return -EINVAL;
 		}
 	}
 
+	/* MDI-X => 2; MDI => 1; Auto => 3 */
+	if (ecmd->eth_tp_mdix_ctrl) {
+		/*
+		 * fix up the value for auto (3 => 0) as zero is mapped
+		 * internally to auto
+		 */
+		if (ecmd->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+			hw->phy.mdix = AUTO_ALL_MODES;
+		else
+			hw->phy.mdix = ecmd->eth_tp_mdix_ctrl;
+	}
+
 	/* reset the link */
 	if (netif_running(adapter->netdev)) {
 		igb_down(adapter);
@@ -1089,8 +1131,8 @@ static bool reg_pattern_test(struct igb_adapter *adapter, u64 *data,
 		wr32(reg, (_test[pat] & write));
 		val = rd32(reg) & mask;
 		if (val != (_test[pat] & write & mask)) {
-			dev_err(&adapter->pdev->dev, "pattern test reg %04X "
-				"failed: got 0x%08X expected 0x%08X\n",
+			dev_err(&adapter->pdev->dev,
+				"pattern test reg %04X failed: got 0x%08X expected 0x%08X\n",
 				reg, val, (_test[pat] & write & mask));
 			*data = reg;
 			return 1;
@@ -1108,8 +1150,8 @@ static bool reg_set_and_check(struct igb_adapter *adapter, u64 *data,
 	wr32(reg, write & mask);
 	val = rd32(reg);
 	if ((write & mask) != (val & mask)) {
-		dev_err(&adapter->pdev->dev, "set/check reg %04X test failed:"
-			" got 0x%08X expected 0x%08X\n", reg,
+		dev_err(&adapter->pdev->dev,
+			"set/check reg %04X test failed: got 0x%08X expected 0x%08X\n", reg,
 			(val & mask), (write & mask));
 		*data = reg;
 		return 1;
@@ -1171,8 +1213,9 @@ static int igb_reg_test(struct igb_adapter *adapter, u64 *data)
 	wr32(E1000_STATUS, toggle);
 	after = rd32(E1000_STATUS) & toggle;
 	if (value != after) {
-		dev_err(&adapter->pdev->dev, "failed STATUS register test "
-			"got: 0x%08X expected: 0x%08X\n", after, value);
+		dev_err(&adapter->pdev->dev,
+			"failed STATUS register test got: 0x%08X expected: 0x%08X\n",
+			after, value);
 		*data = 1;
 		return 1;
 	}
@@ -1497,6 +1540,9 @@ static int igb_integrated_phy_loopback(struct igb_adapter *adapter)
 		break;
 	}
 
+	/* add small delay to avoid loopback test failure */
+	msleep(50);
+
 	/* force 1000, set loopback */
 	igb_write_phy_reg(hw, PHY_CONTROL, 0x4140);
 
@@ -1777,16 +1823,14 @@ static int igb_loopback_test(struct igb_adapter *adapter, u64 *data)
 	 * sessions are active */
 	if (igb_check_reset_block(&adapter->hw)) {
 		dev_err(&adapter->pdev->dev,
-			"Cannot do PHY loopback test "
-			"when SoL/IDER is active.\n");
+			"Cannot do PHY loopback test when SoL/IDER is active.\n");
 		*data = 0;
 		goto out;
 	}
 	if ((adapter->hw.mac.type == e1000_i210)
-		|| (adapter->hw.mac.type == e1000_i210)) {
+		|| (adapter->hw.mac.type == e1000_i211)) {
 		dev_err(&adapter->pdev->dev,
-			"Loopback test not supported "
-			"on this part at this time.\n");
+			"Loopback test not supported on this part at this time.\n");
 		*data = 0;
 		goto out;
 	}