Subject: Re: Tulip driver (if_de) and MII
To: None <firstname.lastname@example.org>
From: Paul J. Lavoie <email@example.com>
Date: 02/29/2000 08:33:13
This problem seems to exist with other Tulip-based cards. What I've had to do
is hard-code both ends to be half-duplex, you should see much better results.
Auto-negotiation seems to always fail, and full-duplex never seems to work.
> > Running the cards in full-duplex gives very poor performance.
> > Below are two tests ran with netperf. One is a direct connection
> > with a cross-over (which gives full-duplex as above) and one
> > is through a hub witch forces the PHYs into half-duplex.
> > That's the standard symptom when one end is running in full-duplex
> > mode and the other is half-duplex.
> But even if I choose full-duplex on both ends I get the lousy performance.
> / Jonas