net: ethtool: disambiguate XCVR_* meaning
Add a comment which explains the real meaning of XCVR_INTERNAL (PHY and
Ethernet MAC in the same package/die) and XCVR_EXTERNAL (PHY and
Ethernet MAC in a different package/die). Most if not all of the drivers
setting their transceiver type already do it the way the comment
describes it.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h
index 0c9b448..38dbafa 100644
--- a/include/uapi/linux/ethtool.h
+++ b/include/uapi/linux/ethtool.h
@@ -993,8 +993,8 @@
#define PORT_OTHER 0xff
/* Which transceiver to use. */
-#define XCVR_INTERNAL 0x00
-#define XCVR_EXTERNAL 0x01
+#define XCVR_INTERNAL 0x00 /* PHY and MAC are in the same package */
+#define XCVR_EXTERNAL 0x01 /* PHY and MAC are in different packages */
#define XCVR_DUMMY1 0x02
#define XCVR_DUMMY2 0x03
#define XCVR_DUMMY3 0x04