Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263331AbUCTKWT (ORCPT ); Sat, 20 Mar 2004 05:22:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263321AbUCTKWS (ORCPT ); Sat, 20 Mar 2004 05:22:18 -0500 Received: from parcelfarce.linux.theplanet.co.uk ([195.92.249.252]:40598 "EHLO www.linux.org.uk") by vger.kernel.org with ESMTP id S263336AbUCTKV3 (ORCPT ); Sat, 20 Mar 2004 05:21:29 -0500 Message-ID: <405C1B1C.4000804@pobox.com> Date: Sat, 20 Mar 2004 05:21:16 -0500 From: Jeff Garzik User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030703 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bartlomiej Zolnierkiewicz CC: Jens Axboe , Linux Kernel , Chris Mason Subject: Re: [PATCH] barrier patch set References: <20040319153554.GC2933@suse.de> <200403200140.59543.bzolnier@elka.pw.edu.pl> <405B936C.50200@pobox.com> <200403200224.14055.bzolnier@elka.pw.edu.pl> In-Reply-To: <200403200224.14055.bzolnier@elka.pw.edu.pl> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 867 Lines: 30 Bartlomiej Zolnierkiewicz wrote: > Yep but in your original mail you suggested that we should explicitly enable > FLUSH CACHE and FLUSH CACHE EXT features - there are even no subcommands > to do this. ;-) Whoops, you're right. I was thinking about the general protocol for features. > I wish it was so simple. Here is an example to make it clear: > > model: WDC WD800JB-00CRA1 firmware: 17.07W77 > word 0x83 is 4b01, word 0x86 is 0x0801 > > and drive of course supports CACHE FLUSH command. What ATA revision? Sending down opcodes because they will "probably" work isn't the best idea in the world... Jeff - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/