Messages in this thread | | | Date | Sun, 10 May 2020 16:44:51 +0200 | From | Andrew Lunn <> | Subject | Re: [PATCH net-next 4/4] net: phy: bcm54140: add cable diagnostics support |
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On Sun, May 10, 2020 at 12:37:14AM +0200, Michael Walle wrote: > Use the generic cable tester functions from bcm-phy-lib to add cable > tester support. > > 100m cable, A/B/C/D open: > Cable test started for device eth0. > Cable test completed for device eth0. > Pair: Pair A, result: Open Circuit > Pair: Pair B, result: Open Circuit > Pair: Pair C, result: Open Circuit > Pair: Pair D, result: Open Circuit > Pair: Pair A, fault length: 106.60m > Pair: Pair B, fault length: 103.32m > Pair: Pair C, fault length: 104.96m > Pair: Pair D, fault length: 106.60m > > 1m cable, A/B connected, pair C shorted, D open: > Cable test started for device eth0. > Cable test completed for device eth0. > Pair: Pair A, result: OK > Pair: Pair B, result: OK > Pair: Pair C, result: Short within Pair > Pair: Pair D, result: Open Circuit > Pair: Pair C, fault length: 0.82m > Pair: Pair D, fault length: 1.64m > > 1m cable, A/B connected, pair C shorted with D: > Cable test started for device eth0. > Cable test completed for device eth0. > Pair: Pair A, result: OK > Pair: Pair B, result: OK > Pair: Pair C, result: Short to another pair > Pair: Pair D, result: Short to another pair > Pair: Pair C, fault length: 1.64m > Pair: Pair D, fault length: 1.64m > > The granularity of the length measurement seems to be 82cm. > > Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Andrew
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