From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Garzik Subject: Re: [PATCH 8/8] libata: implement HORKAGE_1_5_GBPS and apply it to WD My Book Date: Mon, 02 Feb 2009 23:04:51 -0500 Message-ID: <4987C263.90000@garzik.org> References: <1233228696-10562-1-git-send-email-tj@kernel.org> <1233228696-10562-9-git-send-email-tj@kernel.org> 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]:39861 "EHLO mail.dvmed.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754054AbZBCEEy (ORCPT ); Mon, 2 Feb 2009 23:04:54 -0500 In-Reply-To: <1233228696-10562-9-git-send-email-tj@kernel.org> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Tejun Heo Cc: linux-ide@vger.kernel.org Tejun Heo wrote: > 3Gbps is often much more prone to transmission failures. It's usually > okay to let EH handle speed down after transmission failures but some > WD My Book drives completely shutdown after certain transmission > failures and after it only power cycling can revive them. Combined > with the fact that external drives often end up with cable assembly > which is longer than usual and more likely to have intervening gender, > this makes these drives very likely to shutdown under certain > configurations virtually rendering them unusable. > > This patch implements HOARKGE_1_5_GBPS and applies it to WD My Book > such that 1.5Gbps is forced once the device is identified. > > Please take a look at the following bz for related reports. > > http://bugzilla.kernel.org/show_bug.cgi?id=9913 > > Signed-off-by: Tejun Heo applied 1-8