From mboxrd@z Thu Jan  1 00:00:00 1970
From: Chuck Ebbert <cebbert@redhat.com>
Subject: Re: [PATCH] pci-quirks: disable MSI on RS400-200 and RS480, take
 #2
Date: Wed, 09 May 2007 11:37:09 -0400
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To: Tejun Heo <htejun@gmail.com>
Cc: Greg K-H <greg@kroah.com>, Jeff Garzik <jeff@garzik.org>, linux-kernel <linux-kernel@vger.kernel.org>, IDE/ATA development list <linux-ide@vger.kernel.org>, =?ISO-8859-1?Q?Mat=ED=ADas_Alejandro_Torres?= <torresmat@gmail.com>

Tejun Heo wrote:
> MSI doesn't work on RS400-200 and RS480 requiring pci=nomsi kernel
> boot parameter for ahci to work.  This patch renames quirk_svw_msi()
> to quirk_disable_all_msi() and use it to disable MSI on those chips.
> 
>   http://thread.gmane.org/gmane.linux.ide/17820
>   http://thread.gmane.org/gmane.linux.ide/17516
>   https://bugzilla.novell.com/show_bug.cgi?id=263893
> 

FWIW several distros have turned off MSI by default and added
a "pci=msi" option to enable it.