Subject: Re: [PATCH, RESEND] Add MWI workaround for Tulip DC21143

From: Martin Michlmayr <[email-masked]>
Date: Mon, 6 Mar 2006 22:51:31 +0000

* Peter Horton <[email-masked]> [2006-02-18 22:08]:
> This patch works around the MWI bug on the DC21143 rev 65 Tulip by
> ensuring that the receive buffers don't end on a cache line boundary (as
> documented in the errata).
> 
> This patch is required for the MIPs based Cobalt Qube/RaQ as supporting
> the extra PCI commands seems to reduce the chance of a hard lockup
> between the Tulip and the PCI bridge.

Does anyone have comments regarding this patch?  I received
confirmation from a number of Debian users that this patch
significantly improves the lockup situation on Cobalt, so
it would be nice if it could go in.
-- 
Martin Michlmayr
[email-masked]