From mboxrd@z Thu Jan 1 00:00:00 1970 From: maximilian attems Subject: Re: [PATCH] AHCI: add Dell PowerEdge SC430 pci id Date: Fri, 9 May 2008 01:46:17 +0200 Message-ID: <20080508234617.GI27599@baikonur.stro.at> References: <1210279228-14521-1-git-send-email-max@stro.at> <20080508233435.GA15377@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from baikonur.stro.at ([213.239.196.228]:59331 "EHLO baikonur.stro.at" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933470AbYEIASj (ORCPT ); Thu, 8 May 2008 20:18:39 -0400 Content-Disposition: inline In-Reply-To: <20080508233435.GA15377@srcf.ucam.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Matthew Garrett Cc: Jeff Garzik , linux-ide@vger.kernel.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.