Thread (19 messages) 19 messages, 4 authors, 2023-12-11

Re: [PATCH 0/3] net: microchip_t1s: additional phy support and collision detect handling

From: Andrew Lunn <andrew@lunn.ch>
Date: 2023-11-27 16:04:10
Also in: lkml

* 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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