diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index b6acd78..eb2095b 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -1213,6 +1213,10 @@
 #define SUPPORTED_40000baseCR4_Full	(1 << 24)
 #define SUPPORTED_40000baseSR4_Full	(1 << 25)
 #define SUPPORTED_40000baseLR4_Full	(1 << 26)
+#define SUPPORTED_56000baseKR4_Full	(1 << 27)
+#define SUPPORTED_56000baseCR4_Full	(1 << 28)
+#define SUPPORTED_56000baseSR4_Full	(1 << 29)
+#define SUPPORTED_56000baseLR4_Full	(1 << 30)
 
 #define ADVERTISED_10baseT_Half		(1 << 0)
 #define ADVERTISED_10baseT_Full		(1 << 1)
@@ -1241,6 +1245,10 @@
 #define ADVERTISED_40000baseCR4_Full	(1 << 24)
 #define ADVERTISED_40000baseSR4_Full	(1 << 25)
 #define ADVERTISED_40000baseLR4_Full	(1 << 26)
+#define ADVERTISED_56000baseKR4_Full	(1 << 27)
+#define ADVERTISED_56000baseCR4_Full	(1 << 28)
+#define ADVERTISED_56000baseSR4_Full	(1 << 29)
+#define ADVERTISED_56000baseLR4_Full	(1 << 30)
 
 /* The following are all involved in forcing a particular link
  * mode for the device for setting things.  When getting the
@@ -1248,12 +1256,16 @@
  * it was forced up into this mode or autonegotiated.
  */
 
-/* The forced speed, 10Mb, 100Mb, gigabit, 2.5Gb, 10GbE. */
+/* The forced speed, 10Mb, 100Mb, gigabit, [2.5|10|20|40|56]GbE. */
 #define SPEED_10		10
 #define SPEED_100		100
 #define SPEED_1000		1000
 #define SPEED_2500		2500
 #define SPEED_10000		10000
+#define SPEED_20000		20000
+#define SPEED_40000		40000
+#define SPEED_56000		56000
+
 #define SPEED_UNKNOWN		-1
 
 /* Duplex, half or full. */