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From: maximilian attems <max@stro.at>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Jeff Garzik <jgarzik@pobox.com>, linux-ide@vger.kernel.org
Subject: Re: [PATCH] AHCI: add Dell PowerEdge SC430 pci id
Date: Fri, 9 May 2008 01:46:17 +0200	[thread overview]
Message-ID: <20080508234617.GI27599@baikonur.stro.at> (raw)
In-Reply-To: <20080508233435.GA15377@srcf.ucam.org>

On Fri, May 09, 2008 at 12:34:35AM +0100, Matthew Garrett wrote:
> On Thu, May 08, 2008 at 10:40:28PM +0200, maximilian attems wrote:
> > ATA chipset on Dell PowerEdge SC430 is identified as:
> > 00:1f.2 IDE interface [0101]: Intel Corporation 82801GB/GR/GH (ICH7
> > Family) Serial ATA Storage Controller IDE [8086:27c0] (rev 01)
> > 
> > Kernel load the ahci driver with NCQ support after I added it's
> > device IDs into ahci.c.
> 
> Please don't do that. The BIOS has programmed the chip into IDE mode, 
> not AHCI mode. It seems to have also set up the AHCI BAR, but the 
> majority of chips with this ID won't have been and so the ahci driver 
> will fail with them. If the chip was in AHCI mode, the device ID would 
> automatically have changed to 0x27c1.

thanks for the info.

      reply	other threads:[~2008-05-09  0:18 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-05-08 20:40 [PATCH] AHCI: add Dell PowerEdge SC430 pci id maximilian attems
2008-05-08 23:34 ` Matthew Garrett
2008-05-08 23:46   ` maximilian attems [this message]

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