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Date: Fri, 15 Sep 2006 16:43:54 -0500
From: Matt Domsch <Matt_Domsch@dell.com>
To: Greg KH <gregkh@suse.de>, akpm@osdl.org
Cc: Pierre Peiffer <pierre.peiffer@bull.net>, linux-kernel@vger.kernel.org,
       linux-pci@atrey.karlin.mff.cuni.cz
Subject: Re: [Bug ??] 2.6.18-rc6-mm2 - PCI ethernet board does not seem to work
Message-ID: <20060915214354.GB24399@lists.us.dell.com>
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On Fri, Sep 15, 2006 at 03:29:54AM -0700, Greg KH wrote:
> That being said, I think we need to reverse the order of this patch,
> keeping the current scheme as default, and allowing it to be overridden
> on the command line for those few machines where it matters to be
> compatible with the old, 2.4 ordering scheme.
>=20
> Matt, care to rework the patch in this manner?

Greg, Andrew,

I'd really like to rework this patch in a different direction.  As
such, please drop the patch:

gregkh-pci-pci-sort-device-lists-breadth-first.patch

=66rom your trees, and I'll provide a new one next week.

Breadth-first vs depth-first is really only part of the problem.  More
fundamental is the expectation that embedded devices get discovered
before add-in devices in physical slots.  From there, breadth-first vs
depth-first is interesting again.  I'd like to sort the list to put
the embedded devices first, subsort those breadth-first, then list the
add-in devices in ascending slot number order, subsort breadth-first.
I'll default this sorting routine off, enabled/disabled via a command
line option, and enabled by default for some systems based on DMI
strings.

arch/i386/pci/irq.c already has the PCI IRQ Routing Table available,
=66rom which we can get embedded vs slotN information.  It's not
currently being used in this manner, so I'm massaging that.

How does this sound?

Thanks,
Matt

--=20
Matt Domsch
Software Architect
Dell Linux Solutions linux.dell.com & www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com

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