From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] Better MWI workaround for 21143 rev 65 chip errata Date: Fri, 04 Apr 2008 18:07:20 -0400 Message-ID: <47F6A698.1010400@pobox.com> References: <20080325113909.82BF8C2B76@solo.franken.de> <20080404064216.GA8791@colo.lackof.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Thomas Bogendoerfer , netdev@vger.kernel.org, kyle@parisc-linux.org, zero@colonel-panic.org To: Grant Grundler Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:51460 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751535AbYDDWH2 (ORCPT ); Fri, 4 Apr 2008 18:07:28 -0400 In-Reply-To: <20080404064216.GA8791@colo.lackof.org> Sender: netdev-owner@vger.kernel.org List-ID: Grant Grundler wrote: > On Tue, Mar 25, 2008 at 12:39:09PM +0100, Thomas Bogendoerfer wrote: >> From: Peter Horton >> >> 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. >> >> Signed-off-by: Thomas Bogendoerfer > > Acked-by: Grant Grundler > > thanks! > I haven't tested this but it looks correct to me. Wanna give it a quick test then someone bounce me the patch? :) I don't have the original. Jeff