From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: libata vs ATAPI Date: Thu, 14 Oct 2004 09:13:13 +0200 Sender: linux-ide-owner@vger.kernel.org Message-ID: <20041014071313.GF1454@suse.de> References: <58cb370e04101213215ce9a23c@mail.gmail.com> <416C438C.4010902@pobox.com> <58cb370e0410121417591ecff0@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ns.virtualhost.dk ([195.184.98.160]:19094 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id S269983AbUJNHPQ (ORCPT ); Thu, 14 Oct 2004 03:15:16 -0400 Content-Disposition: inline In-Reply-To: <58cb370e0410121417591ecff0@mail.gmail.com> List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: Jeff Garzik , Linux IDE On Tue, Oct 12 2004, Bartlomiej Zolnierkiewicz wrote: > > libata enables DMA at the maximum level supported by both the device and > > host controller. I definitely want to do this by default. > > Me too but I suppose that there are many devices which don't like it > (otherwise restrictions in ide-cd and ide-scsi make no sense). > > Jens? There's no precedens for doing > 128KiB on ATAPI in Linux. Recently Pat at Iomega tested 512/1024KiB requests and it worked fine. So if the device works, we should be golden... -- Jens Axboe