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net: ethtool: disambiguate XCVR_* meaning

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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>
This commit is contained in:
Florian Fainelli 2013-05-23 01:11:11 +00:00 committed by David S. Miller
parent 1010dcceed
commit 7ec8721142
1 changed files with 2 additions and 2 deletions
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4
include/uapi/linux/ethtool.h
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@ -993,8 +993,8 @@ enum ethtool_sfeatures_retval_bits {
#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