Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758421AbZAIXTW (ORCPT ); Fri, 9 Jan 2009 18:19:22 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756988AbZAIXSr (ORCPT ); Fri, 9 Jan 2009 18:18:47 -0500 Received: from outbound-mail-306.bluehost.com ([67.222.53.252]:46215 "HELO outbound-mail-306.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755905AbZAIXS1 (ORCPT ); Fri, 9 Jan 2009 18:18:27 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=default; d=virtuousgeek.org; h=Received:From:To:Subject:Date:User-Agent:Cc:References:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Content-Disposition:Message-Id:X-Identified-User; b=Psw5BL+uNHodU3rB4XYTyKZNaRULtSswpqJyNlsbGAZx+y+ypV04y0MxNwGeArUY3toIyYNvycG/JnLEcNfokezsmb6Fvo15i2vV22sbT4SBbmvVO2okGD/9kSNbj+JO; From: Jesse Barnes To: "Rafael J. Wysocki" Subject: Re: [PATCH 1/8] PCI PCIe portdrv: Remove root ports MSI quirk Date: Fri, 9 Jan 2009 15:18:24 -0800 User-Agent: KMail/1.9.10 Cc: Linux PCI , LKML References: <200901042346.42723.rjw@sisk.pl> <200901042348.22012.rjw@sisk.pl> In-Reply-To: <200901042348.22012.rjw@sisk.pl> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200901091518.25220.jbarnes@virtuousgeek.org> X-Identified-User: {642:box128.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 75.111.27.49 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 841 Lines: 19 On Sunday, January 4, 2009 2:48 pm Rafael J. Wysocki wrote: > From: Rafael J. Wysocki > > The PCI Express port driver contains a quirk that prevents root > ports from using MSI, but there is no explanation for it and the > PCI Express specification clearly allows root ports to use MSI. Ah ignore my last message, it really does look like some chipsets are just buggy here, and the quirk only affects a few, so it should be pretty harmless for the most part (iow I don't think this patch is a good idea on those chipsets). -- Jesse Barnes, Intel Open Source Technology Center -- 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/