ixgbe: add support KX/KX4 device

And support for the KX/KX4 mezzanine card.  Device id 0x10B6.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
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>
diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index ad5699d..6c7ddb9 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -213,6 +213,10 @@
 
 	/* Media type for I82598 is based on device ID */
 	switch (hw->device_id) {
+	case IXGBE_DEV_ID_82598:
+		/* Default device ID is mezzanine card KX/KX4 */
+		media_type = ixgbe_media_type_backplane;
+		break;
 	case IXGBE_DEV_ID_82598AF_DUAL_PORT:
 	case IXGBE_DEV_ID_82598AF_SINGLE_PORT:
 	case IXGBE_DEV_ID_82598EB_CX4:
@@ -1002,6 +1006,11 @@
 	s32 physical_layer = IXGBE_PHYSICAL_LAYER_UNKNOWN;
 
 	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_82598EB_CX4:
 	case IXGBE_DEV_ID_82598_CX4_DUAL_PORT:
 		physical_layer = IXGBE_PHYSICAL_LAYER_10GBASE_CX4;