From: David Miller on
From: Tejun Heo <tj(a)kernel.org>
Date: Sun, 23 May 2010 10:22:55 +0200

> MSI delivery from on-board ahci controller doesn't work on K8M800. At
> this point, it's unclear whether the culprit is with the ahci
> controller or the host bridge. Given the track record and considering
> the rather minimal impact of MSI, disabling it seems reasonable.
>
> Signed-off-by: Tejun Heo <tj(a)kernel.org>
> Reported-by: Rainer Hurtado Navarro <publio.escipion.el.africano(a)gmail.com>
> Cc: stable(a)kernel.org
> ---
> Maybe we should whitelist working ones from via rather than the other
> way around. :-(

Correctness first, of course, but saying the impact of MSI is minimal
ignores the fact that no hardware multiqueue networking at all is
possible without it. :-)

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From: Tejun Heo on
On 05/23/2010 10:54 AM, David Miller wrote:
> Correctness first, of course, but saying the impact of MSI is minimal
> ignores the fact that no hardware multiqueue networking at all is
> possible without it. :-)

If you're trying to do hw multiqueue networking on via chipset, you
gotta be on something *really* good. Come on. Share it with me. :-)

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tejun
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From: David Miller on
From: Tejun Heo <tj(a)kernel.org>
Date: Sun, 23 May 2010 10:56:58 +0200

> On 05/23/2010 10:54 AM, David Miller wrote:
>> Correctness first, of course, but saying the impact of MSI is minimal
>> ignores the fact that no hardware multiqueue networking at all is
>> possible without it. :-)
>
> If you're trying to do hw multiqueue networking on via chipset, you
> gotta be on something *really* good. Come on. Share it with me. :-)

Fair enough. :)
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From: Jesse Barnes on
On Sun, 23 May 2010 10:22:55 +0200
Tejun Heo <tj(a)kernel.org> wrote:

> MSI delivery from on-board ahci controller doesn't work on K8M800. At
> this point, it's unclear whether the culprit is with the ahci
> controller or the host bridge. Given the track record and considering
> the rather minimal impact of MSI, disabling it seems reasonable.
>
> Signed-off-by: Tejun Heo <tj(a)kernel.org>
> Reported-by: Rainer Hurtado Navarro <publio.escipion.el.africano(a)gmail.com>
> Cc: stable(a)kernel.org
> ---

Applied to my for-linus branch, thanks.

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Jesse Barnes, Intel Open Source Technology Center
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