From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: libata+SGIO: is .dma_boundary respected? Date: Wed, 22 Mar 2006 09:52:40 -0500 Message-ID: <442164B8.9070007@rtr.ca> References: <441DC397.9040504@rtr.ca> <441DC9CB.7030203@pobox.com> <441DCAC9.5090603@rtr.ca> <441DCF73.2080600@pobox.com> <441DD101.5050202@rtr.ca> <441DD300.9050702@rtr.ca> <441F544A.6080301@pobox.com> <441F8478.50806@rtr.ca> <441F99AC.4000200@pobox.com> <442006BC.8020100@rtr.ca> <20060321184215.GJ4285@suse.de> <442051A0.1050200@rtr.ca> <4421341E.80704@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([64.26.128.89]:26012 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S1751186AbWCVOwu (ORCPT ); Wed, 22 Mar 2006 09:52:50 -0500 In-Reply-To: <4421341E.80704@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: Jens Axboe , Jeff Garzik , IDE/ATA development list Tejun Heo wrote: > > One question though. Do IOMMU's preserve alignment? ie. Do they align > 33k block on 64k boundary? I guess they do, just wanna make sure. They don't move the physical memory (that the sg list targets) around, so it doesn't really matter, does it? Cheers