From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758338AbYA0VcS (ORCPT ); Sun, 27 Jan 2008 16:32:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754732AbYA0VcE (ORCPT ); Sun, 27 Jan 2008 16:32:04 -0500 Received: from einhorn.in-berlin.de ([192.109.42.8]:33284 "EHLO einhorn.in-berlin.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754278AbYA0VcD (ORCPT ); Sun, 27 Jan 2008 16:32:03 -0500 X-Envelope-From: stefanr@s5r6.in-berlin.de Date: Sun, 27 Jan 2008 22:31:27 +0100 (CET) From: Stefan Richter Subject: [PATCH 2.6.24-git3] firewire: fw-sbp2: relax SCSI DMA alignment To: linux1394-devel@lists.sourceforge.net cc: linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org In-Reply-To: <1201373642.4387.0.camel@localhost.localdomain> Message-ID: References: <479B80A3.5070207@s5r6.in-berlin.de> <1201373642.4387.0.camel@localhost.localdomain> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; CHARSET=us-ascii Content-Disposition: INLINE Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Signed-off-by: Stefan Richter --- Not run-time tested yet. drivers/firewire/fw-sbp2.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-2.6.24-git3/drivers/firewire/fw-sbp2.c =================================================================== --- linux-2.6.24-git3.orig/drivers/firewire/fw-sbp2.c +++ linux-2.6.24-git3/drivers/firewire/fw-sbp2.c @@ -1309,11 +1309,8 @@ static int sbp2_scsi_slave_alloc(struct sdev->allow_restart = 1; - /* - * Update the dma alignment (minimum alignment requirements for - * start and end of DMA transfers) to be a sector - */ - blk_queue_update_dma_alignment(sdev->request_queue, 511); + /* SBP-2 requires quadlet alignment of the data buffers. */ + blk_queue_update_dma_alignment(sdev->request_queue, 4 - 1); if (lu->tgt->workarounds & SBP2_WORKAROUND_INQUIRY_36) sdev->inquiry_len = 36; -- Stefan Richter -=====-==--- ---= ==-== http://arcgraph.de/sr/