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_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 4f6b5df..444200f 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -130,6 +130,18 @@
 			ecmd->advertising |= ADVERTISED_1000baseT_Full;
 
 		ecmd->port = PORT_TP;
+	} else if (hw->phy.media_type == ixgbe_media_type_backplane) {
+		/* Set as FIBRE until SERDES defined in kernel */
+		switch (hw->device_id) {
+		case IXGBE_DEV_ID_82598:
+			ecmd->supported |= (SUPPORTED_1000baseT_Full |
+				SUPPORTED_FIBRE);
+			ecmd->advertising = (ADVERTISED_10000baseT_Full |
+				ADVERTISED_1000baseT_Full |
+				ADVERTISED_FIBRE);
+			ecmd->port = PORT_FIBRE;
+			break;
+		}
 	} else {
 		ecmd->supported |= SUPPORTED_FIBRE;
 		ecmd->advertising = (ADVERTISED_10000baseT_Full |