diff --git a/libc/kernel/uapi/linux/ethtool.h b/libc/kernel/uapi/linux/ethtool.h
index 25e1a9e..642af99 100644
--- a/libc/kernel/uapi/linux/ethtool.h
+++ b/libc/kernel/uapi/linux/ethtool.h
@@ -586,7 +586,22 @@
   ETHTOOL_LINK_MODE_FEC_NONE_BIT = 49,
   ETHTOOL_LINK_MODE_FEC_RS_BIT = 50,
   ETHTOOL_LINK_MODE_FEC_BASER_BIT = 51,
-  __ETHTOOL_LINK_MODE_LAST = ETHTOOL_LINK_MODE_FEC_BASER_BIT,
+  ETHTOOL_LINK_MODE_50000baseKR_Full_BIT = 52,
+  ETHTOOL_LINK_MODE_50000baseSR_Full_BIT = 53,
+  ETHTOOL_LINK_MODE_50000baseCR_Full_BIT = 54,
+  ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT = 55,
+  ETHTOOL_LINK_MODE_50000baseDR_Full_BIT = 56,
+  ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT = 57,
+  ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT = 58,
+  ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT = 59,
+  ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT = 60,
+  ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT = 61,
+  ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT = 62,
+  ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT = 63,
+  ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT = 64,
+  ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT = 65,
+  ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT = 66,
+  __ETHTOOL_LINK_MODE_MASK_NBITS
 };
 #define __ETHTOOL_LINK_MODE_LEGACY_MASK(base_name) (1UL << (ETHTOOL_LINK_MODE_ ##base_name ##_BIT))
 #define SUPPORTED_10baseT_Half __ETHTOOL_LINK_MODE_LEGACY_MASK(10baseT_Half)
@@ -664,6 +679,7 @@
 #define SPEED_50000 50000
 #define SPEED_56000 56000
 #define SPEED_100000 100000
+#define SPEED_200000 200000
 #define SPEED_UNKNOWN - 1
 #define DUPLEX_HALF 0x00
 #define DUPLEX_FULL 0x01