From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH] sil24: add constants Date: Wed, 16 Nov 2005 12:37:29 -0500 Message-ID: <437B6E59.7000304@pobox.com> References: <20051116075649.GA22807@htj.dyndns.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail.dvmed.net ([216.237.124.58]:37813 "EHLO mail.dvmed.net") by vger.kernel.org with ESMTP id S1030185AbVKPRhd (ORCPT ); Wed, 16 Nov 2005 12:37:33 -0500 In-Reply-To: <20051116075649.GA22807@htj.dyndns.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: linux-ide@vger.kernel.org Tejun Heo wrote: > + SGE_DRD = (1 << 29), /* discard data read (/dev/null) > + data address ignored */ BTW, I'm wondering if sil24 can implement ATAPI padding using this. I'm willing to bet some other hardware will allow us to simply append a static S/G descriptor, pointing to zeroed memory, whose length is <4 bytes. In both cases, we could avoid all the nasty pad handling code. Jeff