diff --git a/drivers/net/ixgb/ixgb_hw.c b/drivers/net/ixgb/ixgb_hw.c
index f7fa10e..2b15155 100644
--- a/drivers/net/ixgb/ixgb_hw.c
+++ b/drivers/net/ixgb/ixgb_hw.c
@@ -236,6 +236,17 @@
 		DEBUGOUT("Identified G6104 optics\n");
 		phy_type = ixgb_phy_type_g6104;
 		break;
+	case IXGB_DEVICE_ID_82597EX_CX4:
+		DEBUGOUT("Identified CX4\n");
+		xpak_vendor = ixgb_identify_xpak_vendor(hw);
+		if (xpak_vendor == ixgb_xpak_vendor_intel) {
+			DEBUGOUT("Identified TXN17201 optics\n");
+			phy_type = ixgb_phy_type_txn17201;
+		} else {
+			DEBUGOUT("Identified G6005 optics\n");
+			phy_type = ixgb_phy_type_g6005;
+		}
+		break;
 	default:
 		DEBUGOUT("Unknown physical layer module\n");
 		phy_type = ixgb_phy_type_unknown;
diff --git a/drivers/net/ixgb/ixgb_ids.h b/drivers/net/ixgb/ixgb_ids.h
index 40a085f..9fd6118 100644
--- a/drivers/net/ixgb/ixgb_ids.h
+++ b/drivers/net/ixgb/ixgb_ids.h
@@ -45,6 +45,7 @@
 
 #define IXGB_DEVICE_ID_82597EX_CX4   0x109E
 #define IXGB_SUBDEVICE_ID_A00C  0xA00C
+#define IXGB_SUBDEVICE_ID_A01C  0xA01C
 
 #endif /* #ifndef _IXGB_IDS_H_ */
 /* End of File */