| Message ID | 20240402201123.2961909-2-paweldembicki@gmail.com (mailing list archive) |
|---|---|
| State | Accepted |
| Commit | 9cc8a6e62624e4a0e0bcf8dfd10cc89db6e0f14b |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | [net-next,v3,1/3] net: phy: marvell: add basic support of 88E308X/88E609X family | expand |
On Tue, Apr 02, 2024 at 10:11:19PM +0200, Pawel Dembicki wrote: > 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> Andrew
diff --git a/include/uapi/linux/ethtool_netlink.h b/include/uapi/linux/ethtool_netlink.h index 3f89074aa06c..accbb1a231df 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 {
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> --- v3: - added enum description - improve commit message v2: - introduce patch include/uapi/linux/ethtool_netlink.h | 4 ++++ 1 file changed, 4 insertions(+)