Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-26 14:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

net: ethtool: Add impedance mismatch result code to cable test

Browse Source 
Some PHYs can recognize during a cable test if the impedance in the cable
is okay. They can detect reflections caused by impedance discontinuity
between a regular 100 Ohm cable and an abnormal part with a higher or
lower impedance.

This commit introduces a new result code:
ETHTOOL_A_CABLE_RESULT_CODE_IMPEDANCE_MISMATCH,
which represents the results of a cable test indicating issues with
impedance integrity.

Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://lore.kernel.org/r/20240402201123.2961909-2-paweldembicki@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Pawel Dembicki 2024-04-02 22:11:19 +02:00 committed by Jakub Kicinski
parent ada9841e3e
commit 9cc8a6e626
1 changed files with 4 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
include/uapi/linux/ethtool_netlink.h
View File

@ -515,6 +515,10 @@ enum {
ETHTOOL_A_CABLE_RESULT_CODE_OPEN,
ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT,
ETHTOOL_A_CABLE_RESULT_CODE_CROSS_SHORT,
/* detected reflection caused by the impedance discontinuity between
* a regular 100 Ohm cable and a part with the abnormal impedance value
*/
ETHTOOL_A_CABLE_RESULT_CODE_IMPEDANCE_MISMATCH,
};
enum {