From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Battersby Subject: [PATCH] ide: fix serverworks.c UDMA regression Date: Mon, 15 Oct 2007 15:05:30 -0400 Message-ID: <4713B9FA.8050803@cybernetics.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from host06.cybernetics.com ([206.246.200.22]:4628 "EHLO mail.cybernetics.com" rhost-flags-OK-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1759894AbXJOT1u (ORCPT ); Mon, 15 Oct 2007 15:27:50 -0400 Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz , linux-ide@vger.kernel.org The patch described by the following excerpt from ChangeLog-2.6.22 makes it impossible to use UDMA on a Tyan S2707 motherboard (SvrWks CSB5): commit 2d5eaa6dd744a641e75503232a01f52d0768884c Author: Bartlomiej Zolnierkiewicz Date: Thu May 10 00:01:08 2007 +0200 ide: rework the code for selecting the best DMA transfer mode (v3) ... This one-line patch against 2.6.23 fixes the problem. Signed-off-by: Tony Battersby --- --- linux-2.6.23/drivers/ide/pci/serverworks.c.orig 2007-10-15 12:15:01.000000000 -0400 +++ linux-2.6.23/drivers/ide/pci/serverworks.c 2007-10-15 13:47:29.000000000 -0400 @@ -97,6 +97,7 @@ static u8 svwks_udma_filter(ide_drive_t mode = 2; switch(mode) { + case 3: mask = 0x3f; break; case 2: mask = 0x1f; break; case 1: mask = 0x07; break; default: mask = 0x00; break;