ixgbe: Update get_physical_layer() calls, plus a version bump

Not all physical connection types are being correctly identified.  This
fixes that issue, and cleans up the logic to make it more maintainable.

Also clean up the code for device capabilities from the EEPROM to support
multiple SKUs of the same hardware.

Bump the version to reflect all the updates since the 82599 merge.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 59 insertions, 26 deletions

diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 361c9d1d0117..a7ae4d45b53d 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -1089,35 +1089,56 @@ out:
 static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
 {
 	u32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
+	u32 autoc = IXGBE_READ_REG(hw, IXGBE_AUTOC);
+	u32 pma_pmd_10g = autoc & IXGBE_AUTOC_10G_PMA_PMD_MASK;
+	u32 pma_pmd_1g = autoc & IXGBE_AUTOC_1G_PMA_PMD_MASK;
+	u16 ext_ability = 0;
+
+	hw->phy.ops.identify(hw);
+
+	/* Copper PHY must be checked before AUTOC LMS to determine correct
+	 * physical layer because 10GBase-T PHYs use LMS = KX4/KX */
+	if (hw->phy.type == ixgbe_phy_tn ||
+	    hw->phy.type == ixgbe_phy_cu_unknown) {
+		hw->phy.ops.read_reg(hw, IXGBE_MDIO_PHY_EXT_ABILITY,
+		IXGBE_MDIO_PMA_PMD_DEV_TYPE, &ext_ability);
+		if (ext_ability & IXGBE_MDIO_PHY_10GBASET_ABILITY)
+			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_T;
+		if (ext_ability & IXGBE_MDIO_PHY_1000BASET_ABILITY)
+			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_T;
+		if (ext_ability & IXGBE_MDIO_PHY_100BASETX_ABILITY)
+			physical_layer |= IXGBE_PHYSICAL_LAYER_100BASE_TX;
+		goto out;
+	}
 
-	switch (hw->device_id) {
-	case IXGBE_DEV_ID_82598:
-		/* Default device ID is mezzanine card KX/KX4 */
-		physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_KX4 |
-				  IXGBE_PHYSICAL_LAYER_1000BASE_KX);
-		break;
-	case IXGBE_DEV_ID_82598_BX:
-		physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
-	case IXGBE_DEV_ID_82598EB_CX4:
-	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
-		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
-		break;
-	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
-		physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
+	switch (autoc & IXGBE_AUTOC_LMS_MASK) {
+	case IXGBE_AUTOC_LMS_1G_AN:
+	case IXGBE_AUTOC_LMS_1G_LINK_NO_AN:
+		if (pma_pmd_1g == IXGBE_AUTOC_1G_KX)
+			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_KX;
+		else
+			physical_layer = IXGBE_PHYSICAL_LAYER_1000BASE_BX;
 		break;
-	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
-	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
-	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
-		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
+	case IXGBE_AUTOC_LMS_10G_LINK_NO_AN:
+		if (pma_pmd_10g == IXGBE_AUTOC_10G_CX4)
+			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;
+		else if (pma_pmd_10g == IXGBE_AUTOC_10G_KX4)
+			physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
+		else /* XAUI */
+			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
 		break;
-	case IXGBE_DEV_ID_82598EB_XF_LR:
-		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
+	case IXGBE_AUTOC_LMS_KX4_AN:
+	case IXGBE_AUTOC_LMS_KX4_AN_1G_AN:
+		if (autoc & IXGBE_AUTOC_KX_SUPP)
+			physical_layer |= IXGBE_PHYSICAL_LAYER_1000BASE_KX;
+		if (autoc & IXGBE_AUTOC_KX4_SUPP)
+			physical_layer |= IXGBE_PHYSICAL_LAYER_10GBASE_KX4;
 		break;
-	case IXGBE_DEV_ID_82598AT:
-		physical_layer = (IXGBE_PHYSICAL_LAYER_10GBASE_T |
-		                  IXGBE_PHYSICAL_LAYER_1000BASE_T);
+	default:
 		break;
-	case IXGBE_DEV_ID_82598EB_SFP_LOM:
+	}
+
+	if (hw->phy.type == ixgbe_phy_nl) {
 		hw->phy.ops.identify_sfp(hw);
 
 		switch (hw->phy.sfp_type) {
@@ -1134,13 +1155,25 @@ static u32 ixgbe_get_supported_physical_layer_82598(struct ixgbe_hw *hw)
 			physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
 			break;
 		}
-		break;
+	}
 
+	switch (hw->device_id) {
+	case IXGBE_DEV_ID_82598_DA_DUAL_PORT:
+		physical_layer = IXGBE_PHYSICAL_LAYER_SFP_PLUS_CU;
+		break;
+	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
+	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
+	case IXGBE_DEV_ID_82598_SR_DUAL_PORT_EM:
+		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_SR;
+		break;
+	case IXGBE_DEV_ID_82598EB_XF_LR:
+		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_LR;
+		break;
 	default:
-		physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
 		break;
 	}
 
+out:
 	return physical_layer;
 }