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Diffstat (limited to 'include/linux/ethtool.h')
-rw-r--r--include/linux/ethtool.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index 6628a507fd3b..1908929204a9 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -691,7 +691,9 @@ struct ethtool_ops {
#define ETHTOOL_GMSGLVL 0x00000007 /* Get driver message level */
#define ETHTOOL_SMSGLVL 0x00000008 /* Set driver msg level. */
#define ETHTOOL_NWAY_RST 0x00000009 /* Restart autonegotiation. */
-#define ETHTOOL_GLINK 0x0000000a /* Get link status (ethtool_value) */
+/* Get link status for host, i.e. whether the interface *and* the
+ * physical port (if there is one) are up (ethtool_value). */
+#define ETHTOOL_GLINK 0x0000000a
#define ETHTOOL_GEEPROM 0x0000000b /* Get EEPROM data */
#define ETHTOOL_SEEPROM 0x0000000c /* Set EEPROM data. */
#define ETHTOOL_GCOALESCE 0x0000000e /* Get coalesce config */