From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Richter Subject: [PATCH 2.6.24-git3] ieee1394: sbp2: relax SCSI DMA alignment Date: Sun, 27 Jan 2008 22:32:22 +0100 (CET) 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-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: INLINE List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux1394-devel-bounces@lists.sourceforge.net Errors-To: linux1394-devel-bounces@lists.sourceforge.net To: linux1394-devel@lists.sourceforge.net Cc: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org List-Id: linux-scsi@vger.kernel.org Signed-off-by: Stefan Richter --- Not run-time tested yet. drivers/ieee1394/sbp2.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) Index: linux-2.6.24-git3/drivers/ieee1394/sbp2.c =================================================================== --- linux-2.6.24-git3.orig/drivers/ieee1394/sbp2.c +++ linux-2.6.24-git3/drivers/ieee1394/sbp2.c @@ -1966,11 +1966,8 @@ static int sbp2scsi_slave_alloc(struct s lu->sdev = sdev; 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->workarounds & SBP2_WORKAROUND_INQUIRY_36) sdev->inquiry_len = 36; -- Stefan Richter -=====-==--- ---= ==-== http://arcgraph.de/sr/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/