From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: Kernel Summit request for Discussion of future of ATA (libata) and IDE Date: Mon, 04 Aug 2008 18:12:51 -0400 Message-ID: <48977EE3.8050806@rtr.ca> References: <48976168.3020804@shaw.ca> <20080804205508.20a3f917@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:1447 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751163AbYHDWMx (ORCPT ); Mon, 4 Aug 2008 18:12:53 -0400 In-Reply-To: <20080804205508.20a3f917@lxorguk.ukuu.org.uk> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Robert Hancock , Bartlomiej Zolnierkiewicz , James Bottomley , ksummit-2008-discuss@lists.linux-foundation.org, linux-kernel , linux-ide Alan Cox wrote: > You don't. Basically it is controller dependant. Pretty much all the > newer controllers support the 32bit PIO data cycles. Most PCI controllers > it makes no speed difference but host bus controllers (especially > PIIX/ICH) really benefit. .. By "most PCI controllers", did you really mean "most add-on PCI (card) controllers"? Nearly all onboard "PCI" controllers (integrated into the host chipset) benefit hugely, but I suppose that is what was meant by "host bus controllers". Cheers