From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758967AbYDXMqT (ORCPT ); Thu, 24 Apr 2008 08:46:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755096AbYDXMqK (ORCPT ); Thu, 24 Apr 2008 08:46:10 -0400 Received: from homer.mvista.com ([63.81.120.155]:63950 "EHLO imap.sh.mvista.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752810AbYDXMqI (ORCPT ); Thu, 24 Apr 2008 08:46:08 -0400 Message-ID: <481080EA.7010107@ru.mvista.com> Date: Thu, 24 Apr 2008 16:45:30 +0400 From: Sergei Shtylyov Organization: MontaVista Software Inc. User-Agent: Mozilla/5.0 (X11; U; Linux i686; rv:1.7.2) Gecko/20040803 X-Accept-Language: ru, en-us, en-gb MIME-Version: 1.0 To: Alan Cox Cc: Tejun Heo , Jeff Garzik , Adrian Bunk , linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org Subject: Re: [2.6 patch] select ATA_SFF References: <20080421213147.GH2633@cs181133002.pp.htv.fi> <480DE3C4.5@ru.mvista.com> <480DE6F5.8060403@gmail.com> <480DE9E8.2070809@ru.mvista.com> <480DEB1F.5060500@gmail.com> <20080424123541.09e5ef96@the-village.bc.nu> In-Reply-To: <20080424123541.09e5ef96@the-village.bc.nu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Alan Cox wrote: >>Sergei Shtylyov wrote: >>>>> Jeff, Tejun, what "sff" in the file name actually means? Isn't it >>>>>strange that the drivers lacking DMA support or not really compliant >>>>>with SFF-8038i have to link with this file? >>>>Maybe it should be libata-tf and libata-bmdma, but sff (sans bmdma) >>>>and bmdma is acceptable, hopefully, right? >>> What's sff sans bmdma? >>Supposed to be TF interface. IIRC, the SFF term was first from Alan >>although it's entirely possible that I misunderstood it and used it in >>the wrong way. Alan, can you please clear up the confusion? > The SFF/Intel spec is for PCI IDE (BMDMA or otherwise), so it covers and > defines all the common bits of the IDE interface on PCI (and in defining > the legacy interface conveniently documents the extended ST-412 interface > used by ATA and "pre-ATA" IDE/EIDE controllers). If you mean SFF-8038i (which can indeed be named "SFF/Intel"), it documents *only* BMDMA. If you mean something else, please be more precise. > Alan WBR, Sergei