From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH v2] libata: ahci enclosure management bios workaround Date: Mon, 06 Apr 2009 20:02:34 -0400 Message-ID: <49DA981A.2000502@garzik.org> References: <20090403203641.GA16179@dhcp-210.hsv.redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from srv5.dvmed.net ([207.36.208.214]:42377 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757959AbZDGACj (ORCPT ); Mon, 6 Apr 2009 20:02:39 -0400 In-Reply-To: <20090403203641.GA16179@dhcp-210.hsv.redhat.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: David Milburn Cc: linux-ide@vger.kernel.org, kristen.c.accardi@intel.com David Milburn wrote: > During driver initialization ahci_start_port may not be able > to turn LEDs off because the hardware may still be transmitting > a message. And since the BIOS may not be setting the LEDs to > off the drive LEDs may end up in a fault state. This has > been seen on ICH9r and ICH10r when configured in AHCI mode > instead of RAID mode, this patch doesn't key off a specific > set of device IDs but will give the EM transmit bit a chance > to clear if busy. > > Signed-off-by: David Milburn applied