| To: | netdev@vger.kernel.org, linux-mips@linux-mips.org |
|---|---|
| Subject: | Re: [PATCH, RESEND] Add MWI workaround for Tulip DC21143 |
| From: | Martin Michlmayr <tbm@cyrius.com> |
| Date: | Mon, 6 Mar 2006 22:51:31 +0000 |
| In-reply-to: | <20060218220851.GA1601@colonel-panic.org> |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <20060129230816.GD4094@colonel-panic.org> <20060218220851.GA1601@colonel-panic.org> |
| Resent-date: | Tue, 7 Mar 2006 03:48:51 +0000 |
| Resent-from: | tbm@cyrius.com |
| Resent-message-id: | <20060307034851.GB29936@unjust.cyrius.com> |
| Resent-to: | linux-mips@linux-mips.org |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mutt/1.5.9i |
* Peter Horton <pdh@colonel-panic.org> [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 tbm@cyrius.com |
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