From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: ICH10 not working with AHCI kernel option Date: Fri, 09 Apr 2010 00:28:07 -0400 Message-ID: <4BBEACD7.30601@garzik.org> References: <20100408144525.2f3f5718@lxorguk.ukuu.org.uk> <4bbdde49.e302be0a.3106.0220@mx.google.com> <20100408145916.50dbe8de@lxorguk.ukuu.org.uk> <4bbde1ea.c701be0a.60ec.0270@mx.google.com> <20100408150920.5689564b@lxorguk.ukuu.org.uk> <4bbde4f7.1702be0a.5f6c.028e@mx.google.com> <4BBE6CA6.1010808@gmail.com> <4bbe8a6a.8602be0a.7951.0fb8@mx.google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-qy0-f179.google.com ([209.85.221.179]:38258 "EHLO mail-qy0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751127Ab0DIE2K (ORCPT ); Fri, 9 Apr 2010 00:28:10 -0400 Received: by qyk9 with SMTP id 9so976237qyk.1 for ; Thu, 08 Apr 2010 21:28:09 -0700 (PDT) In-Reply-To: <4bbe8a6a.8602be0a.7951.0fb8@mx.google.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: =?ISO-8859-1?Q?D=E2niel_Fraga?= Cc: Robert Hancock , Alan Cox , linux-ide@vger.kernel.org On 04/08/2010 10:00 PM, D=E2niel Fraga wrote: > On Thu, 08 Apr 2010 17:54:14 -0600 > Robert Hancock wrote: > >> Depends on a lot of things, and what you mean by "significant". You >> don't get NCQ in legacy mode, and you also don't get 64-bit DMA supp= ort, >> which gets more significant the more RAM you have. > > I understand Robert. Ok, by significant I mean "better" and > "faster". > > So there's no NCQ in legacy mode? But you wrote that > regarding just the ICH chipset or all chipsets? Because I remember wh= en > I used the forcedeth driver there was NCQ. This has a reasonably comprehensive list: http://ata.wiki.kernel.org/index.php/SATA_hardware_features