Messages in this thread Patch in this message | | | Date | Thu, 01 Jun 2006 14:30:40 -0400 | From | Mark Lord <> | Subject | Re: State of resume for AHCI? |
| |
The one-line "resume fix" (attached) *might* be all that you need. This is in current Linus 2.6.17-rc*-git*
Cheers Return-Path: <linux-ide-owner@vger.kernel.org> X-Original-To: liml@rtr.ca Delivered-To: liml@rtr.ca Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by mail.rtr.ca (Postfix) with ESMTP id 2DCD7830162 for <liml@rtr.ca>; Sun, 28 May 2006 11:28:07 -0400 (EDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750768AbWE1P2E (ORCPT <rfc822;liml@rtr.ca>); Sun, 28 May 2006 11:28:04 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750772AbWE1P2D (ORCPT <rfc822;linux-ide-outgoing>); Sun, 28 May 2006 11:28:03 -0400 Received: from rtr.ca ([64.26.128.89]:19922 "EHLO mail.rtr.ca") by vger.kernel.org with ESMTP id S1750768AbWE1P2C (ORCPT <rfc822;linux-ide@vger.kernel.org>); Sun, 28 May 2006 11:28:02 -0400 Received: from silvy.localnet (silvy.localnet [10.0.0.14]) by mail.rtr.ca (Postfix) with ESMTP id D0C538300A1; Sun, 28 May 2006 11:28:00 -0400 (EDT) From: Mark Lord <liml@rtr.ca> Organization: Real-Time Remedies Inc. To: Jeff Garzik <jeff@garzik.org> Subject: [PATCH] 2.6.17-rc5: the latest consensus libata resume fix Date: Sun, 28 May 2006 11:28:00 -0400 User-Agent: KMail/1.9.1 Cc: Linus Torvalds <torvalds@osdl.org>, Jens Axboe <axboe@suse.de>, "zhao, forrest" <forrest.zhao@intel.com>, Tejun Heo <htejun@gmail.com>, linux-ide@vger.kernel.org References: <200605272245.30108.axboe@suse.de> <Pine.LNX.4.64.0605271716030.5623@g5.osdl.org> <4478F681.8050607@garzik.org> In-Reply-To: <4478F681.8050607@garzik.org> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200605281128.00532.liml@rtr.ca> Sender: linux-ide-owner@vger.kernel.org Precedence: bulk X-Mailing-List: linux-ide@vger.kernel.org
Okay, just to sum things up.
The patch below is the current "release candidate" for improving the libata/ata_piix resume functionality in 2.6.17-rc*.
It forces libata to wait for up to 2 seconds for BUSY|DRQ to clear on resume before continuing. This is only for 2.6.17 at present.
We are waiting on Jens to test and report back for this specific version.
Signed-off-by: Mark Lord <liml@rtr.ca> --- --- linux-2.6.17-rc5/drivers/scsi/libata-core.c +++ linux/drivers/scsi/libata-core.c @@ -4296,6 +4296,7 @@ static int ata_start_drive(struct ata_po */ int ata_device_resume(struct ata_port *ap, struct ata_device *dev) { if (ap->flags & ATA_FLAG_SUSPENDED) { + ata_busy_wait(ap, ATA_BUSY | ATA_DRQ, 200000); ap->flags &= ~ATA_FLAG_SUSPENDED; ata_set_mode(ap); - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html | |