From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mark Lord Subject: Re: [PATCHSET #upstream-fixes] git tree available Date: Mon, 19 May 2008 22:58:23 -0400 Message-ID: <48323E4F.3050806@rtr.ca> References: <12111273141039-git-send-email-htejun@gmail.com> <48305961.2050509@gmail.com> <006501c8ba19$c1f53340$6917a8c0@parents> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from rtr.ca ([76.10.145.34]:1098 "EHLO mail.rtr.ca" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754451AbYETC62 (ORCPT ); Mon, 19 May 2008 22:58:28 -0400 In-Reply-To: <006501c8ba19$c1f53340$6917a8c0@parents> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Brian & Chamaigne Scamman Cc: 'Tejun Heo' , jeff@garzik.org, linux-ide@vger.kernel.org Brian & Chamaigne Scamman wrote: > Tejun- > > The hotplug fixes didn't solve the problem. After adding some "logic > monitoring" statements, I found that the successful discovery of the drives > depends on the response from sil24_exec_polled_cmd. > > If the call from ata_wait_register is 327680, the drives are recognized; if > the response is 262144 the drives have timed out. > > I've also noticed that the drives respond to the EH entering with DevExch > vs. PHY RDY changed. > > Bottom line, the drives seem to be recognized almost every time I attach > them to the PMP after the EH has completed processing the empty PMP. If the > drives are attached to the PMP before the PMP is attached to the controller, > the drives are almost never recognized (EH times out). .. hp-polling is beginning to look better and better.. again. :)