From mboxrd@z Thu Jan 1 00:00:00 1970 From: Robert Hancock Subject: Re: No NCQ support on X61s Ultrabay? (Intel ICH8 SATA controller question) Date: Thu, 30 Apr 2009 22:21:08 -0600 Message-ID: <49FA78B4.2070900@gmail.com> References: <49F90CA2.4080602@garzik.org> <20090430083309.437f9248@lithium.local.net> <20090430113445.GA4809@mit.edu> <20090430113814.GB4809@mit.edu> <49FA55A0.8080303@gmail.com> <20090501025132.GA7275@mit.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from yx-out-2324.google.com ([74.125.44.30]:20905 "EHLO yx-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750772AbZEAEVf (ORCPT ); Fri, 1 May 2009 00:21:35 -0400 In-Reply-To: <20090501025132.GA7275@mit.edu> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Theodore Tso Cc: Alex Buell , Jeff Garzik , linux-kernel@vger.kernel.org, Matthew Wilcox , Linux IDE mailing list Theodore Tso wrote: > On Thu, Apr 30, 2009 at 07:51:28PM -0600, Robert Hancock wrote: >>> Thinking about this a bit more, I'll bet the problem is the BIOS >>> setting is only affecting the primary SATA ports (which are being >>> grabed by ahci) and not the SATA port in the Ultrabay slot (which is >>> being picked up by either the ata_piix or piix driver). Sigh... >> dmesg and lspci -vv output might be useful.. > > Here you go... I'm suspecting that that Ultrabay slot might be using the PATA ports on the chipset, with a PATA-SATA bridge chip or something. I haven't seen an Intel chipset with some SATA ports using AHCI and some in PIIX mode before, the ones I've seen with both had the PIIX mode driving PATA ports. If it is indeed bridged through PATA on that laptop, there's no way you're going to get any NCQ support on that slot. I don't know why Lenovo would do that, as it would kind of cripple SATA drives in that slot, but hardware people do some bizarre things sometimes..