Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932214Ab1C1Ug4 (ORCPT ); Mon, 28 Mar 2011 16:36:56 -0400 Received: from the.earth.li ([46.43.34.31]:41106 "EHLO the.earth.li" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753911Ab1C1Ugy (ORCPT ); Mon, 28 Mar 2011 16:36:54 -0400 Date: Mon, 28 Mar 2011 13:36:53 -0700 From: Jonathan McDowell To: Bjorn Helgaas Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Re-add quirk for ServerWorks bridge secondary buses Message-ID: <20110328203653.GL4835@earth.li> References: <20110324043652.GA4835@earth.li> <20110324182751.GC4835@earth.li> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1553 Lines: 39 On Thu, Mar 24, 2011 at 05:58:30PM -0700, Bjorn Helgaas wrote: > On Thu, Mar 24, 2011 at 11:27 AM, Jonathan McDowell > wrote: > > > On Wed, Mar 23, 2011 at 10:50:20PM -0700, Bjorn Helgaas wrote: > > > > I assume that since you don't have a standard BIOS, you don't have > > > ACPI? > > > > Nope. Nor DMI. As previously mentioned there is a custom ASIC, but > > it's hidden behind these bridges. > > > > Thanks. Looks like your box doesn't even have PCI BIOS, so > pcibios_last_bus == -1 until pci_fixup_serverworks() updates it, so we > only scan bus 00. > > Another option would be to boot with "pci=lastbus=0xff". If you just > have a box or two, that might be the easiest solution, but I guess I'm > not opposed to a quirk like this. It's a firmware workaround, not a > hardware bug, and the message is irrelevant and possibly distracting > on machines with decent firmware, but it's not terrible. I've managed to get detection of the non-standard BIOS working, so I can actually quirk much more specifically now for my purposes. I don't believe there's any need to take this upstream if no one else is reporting problems. J. -- "This sentence no verb." -- Robin Stevens, ox.talk This .sig brought to you by the letter T and the number 42 Product of the Republic of HuggieTag -- 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/