Messages in this thread | | | Date | Mon, 27 Nov 2023 17:03:54 +0100 | From | Andrew Lunn <> | Subject | Re: [PATCH 0/3] net: microchip_t1s: additional phy support and collision detect handling |
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> * 3-4 nodes (depending on how many usb ports and dongles I have) > * run iperf with long cables and CSMA/CD > * run iperf with long cables and CMSA/No CD > > I'll report back the results. Anything you'd like to add/focus on with > evaluation?
Humm, thinking about how CSMA/CD works...
Maybe look at what counters the MAC provides. Does it have collisions and bad FCS? A collision should result in a bad FCS, if you are not using CD. So if things are working correctly, the count for CD should move to FCS if you turn CD off. If CD is falsely triggering, FCS as a % should not really change, but you probably get more frames over the link?
Andrew
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