From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: [PATCH] libata-dev: recognize WRITE_MULTI_FUA_EXT for r/w multiple Date: Fri, 3 Mar 2006 15:28:23 +0100 Message-ID: <20060303142823.GQ4329@suse.de> References: <4407AB1D.2080506@tw.ibm.com> <4408521B.9000905@rtr.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ns.virtualhost.dk ([195.184.98.160]:43012 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S1751223AbWCCO2s (ORCPT ); Fri, 3 Mar 2006 09:28:48 -0500 Content-Disposition: inline In-Reply-To: <4408521B.9000905@rtr.ca> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Mark Lord Cc: albertl@mail.com, Jeff Garzik , Linux IDE On Fri, Mar 03 2006, Mark Lord wrote: > Albert Lee wrote: > >Jeff, > > > >Changes: > >Recognize ATA_CMD_WRITE_MULTI_FUA_EXT as r/w multiple commands. > > This one will require exhaustive testing on various controllers. > There are quite a few PIO boards with FIFOs that "recognize" > opcodes for READs and WRITEs. And practically all of them predate > any concept of FUA commands. > > Very VERY risky. Which is why it's so annoying and seemingly idiotic that t13 keeps making up new opcodes for the exact same thing instead of allowing options bits. -- Jens Axboe