Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262105AbVC1XDO (ORCPT ); Mon, 28 Mar 2005 18:03:14 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262109AbVC1XDN (ORCPT ); Mon, 28 Mar 2005 18:03:13 -0500 Received: from mail.kroah.org ([69.55.234.183]:3774 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S262105AbVC1XB0 (ORCPT ); Mon, 28 Mar 2005 18:01:26 -0500 Date: Mon, 28 Mar 2005 14:58:18 -0800 From: Greg KH To: "Michael S. Tsirkin" Cc: gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz, linux-kernel@vger.kernel.org, mj@ucw.cz, openib-general@openib.org Subject: Re: [PATCH] disable MSI for AMD-8131 Message-ID: <20050328225818.GA4919@kroah.com> References: <20050306202845.GE8486@mellanox.co.il> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050306202845.GE8486@mellanox.co.il> User-Agent: Mutt/1.5.8i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 897 Lines: 23 On Sun, Mar 06, 2005 at 10:28:45PM +0200, Michael S. Tsirkin wrote: > Greg, Martin, > > The AMD-8131 I/O APIC (device id 1022:7450/7451) does not support message > signalled interrupts. Thus, if a device driver attempts to enable msi, > it will suceed, but interrupts are not actually delivered to the cpu. > The Nforce chipsets do not seem to have this limitation. > AMD confirmed that MSI mode is unsupported with this APIC. > > The following patch adds a flag to pci quirks to detect this and disable msi. > > Please let me know what do you think. > > Signed-off-by: Michael S. Tsirkin Looks good, applied, thanks. greg k-h - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/