From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH] AHCI: add Dell PowerEdge SC430 pci id Date: Fri, 9 May 2008 00:34:35 +0100 Message-ID: <20080508233435.GA15377@srcf.ucam.org> References: <1210279228-14521-1-git-send-email-max@stro.at> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mjg.x.mythic-beasts.com ([93.93.128.6]:54376 "EHLO vavatch.codon.org.uk" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1754201AbYEHXey (ORCPT ); Thu, 8 May 2008 19:34:54 -0400 Content-Disposition: inline In-Reply-To: <1210279228-14521-1-git-send-email-max@stro.at> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: maximilian attems Cc: Jeff Garzik , linux-ide@vger.kernel.org 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. -- Matthew Garrett | mjg59@srcf.ucam.org