Messages in this thread | | | Date | Fri, 29 Mar 2024 08:10:58 -0700 | From | Jakub Kicinski <> | Subject | Re: [PATCH net-next v2 2/3] net: ethtool: Add impedance mismatch result code to cable test |
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On Fri, 29 Mar 2024 10:31:10 +0100 Paweł Dembicki wrote: > > I'm not a cable expert but going purely by the language > > abnormal != mismatch. Mismatch indicates there are two > > values we are comparing. > > Impedance mismatch can be detected because some parts of the cable may > have different (abnormal) impedance, causing reflections at those > points. Ethernet cables should have a characteristic impedance of 100 > Ohms, so any mismatch from this value is considered abnormal.
I see, makes sense.
> I can provide a rephrased version if the commit description was not > detailed enough.
That'd be great. Or maybe even better a short comment above the enum entry?
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