From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH] pci-quirks: disable MSI on RS400-200 and RS480, take #2 Date: Wed, 09 May 2007 18:04:16 +0200 Message-ID: <4641F100.70302@gmail.com> References: <4641BD26.1020501@gmail.com> <4641EAA5.4030409@redhat.com> <4641EDDC.1020102@gmail.com> <4641EF46.2090506@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from nz-out-0506.google.com ([64.233.162.238]:28146 "EHLO nz-out-0506.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754125AbXEIQE3 (ORCPT ); Wed, 9 May 2007 12:04:29 -0400 Received: by nz-out-0506.google.com with SMTP id o1so245808nzf for ; Wed, 09 May 2007 09:04:29 -0700 (PDT) In-Reply-To: <4641EF46.2090506@redhat.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Chuck Ebbert Cc: Greg K-H , Jeff Garzik , linux-kernel , IDE/ATA development list , =?ISO-8859-1?Q?Mat=ED=ADas_Alejandro_Torres?= Chuck Ebbert wrote: > Tejun Heo wrote: >>> FWIW several distros have turned off MSI by default and added >>> a "pci=msi" option to enable it. >> Yeah, it seem to cause a lot of problems on certain chips but I think >> the correct path is to add PCI quirks for those. Most MSI problems I've >> seen are on these ATI chips. Do you happen to know any other? > > We had devices that didn't do MSI right, e.g. forcedeth and others I > can't recall now. Right, driver on such devices shouldn't enable MSI. I think we have several of those in ATA too. Oh.. crap. :-( -- tejun