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: Sat, 12 Apr 2008 05:01:51 -0400 Message-ID: <48007A7F.7040109@garzik.org> References: <20080325113909.82BF8C2B76@solo.franken.de> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, grundler@parisc-linux.org, kyle@parisc-linux.org, zero@colonel-panic.org To: Thomas Bogendoerfer Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:59378 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758516AbYDLJBz (ORCPT ); Sat, 12 Apr 2008 05:01:55 -0400 In-Reply-To: <20080325113909.82BF8C2B76@solo.franken.de> Sender: netdev-owner@vger.kernel.org List-ID: 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 > --- > > drivers/net/tulip/tulip.h | 7 ++++++- > drivers/net/tulip/tulip_core.c | 19 +++++-------------- > 2 files changed, 11 insertions(+), 15 deletions(-) applied