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| author | Pawel Dembicki <paweldembicki@gmail.com> | 2024-04-02 22:11:19 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-04-03 19:33:20 -0700 |
| commit | 9cc8a6e62624e4a0e0bcf8dfd10cc89db6e0f14b (patch) | |
| tree | 29b996ea2935bd349f1183a1526c080328c7c415 | |
| parent | ada9841e3e665bb320d2eedcf33f640198e2378d (diff) | |
| download | ipsec-next-9cc8a6e62624e4a0e0bcf8dfd10cc89db6e0f14b.tar.gz | |
net: ethtool: Add impedance mismatch result code to cable test
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>
| -rw-r--r-- | include/uapi/linux/ethtool_netlink.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index 3f89074aa06c62..accbb1a231df5a 100644 --- a/include/uapi/linux/ethtool_netlink.h +++ b/include/uapi/linux/ethtool_netlink.h @@ -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 { |