From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH #upstream-fixes] libata: implement libata.force_cbl parameter Date: Wed, 09 Jan 2008 10:19:59 +0900 Message-ID: <4784213F.4070203@gmail.com> References: <4783786A.6040608@gmail.com> <20080108144004.30a18457@lxorguk.ukuu.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from rv-out-0910.google.com ([209.85.198.189]:45596 "EHLO rv-out-0910.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757828AbYAIBUH (ORCPT ); Tue, 8 Jan 2008 20:20:07 -0500 Received: by rv-out-0910.google.com with SMTP id k20so39989rvb.1 for ; Tue, 08 Jan 2008 17:20:05 -0800 (PST) In-Reply-To: <20080108144004.30a18457@lxorguk.ukuu.org.uk> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Alan Cox Cc: Jeff Garzik , IDE/ATA development list Alan Cox wrote: > On Tue, 08 Jan 2008 22:19:38 +0900 > Tejun Heo wrote: > >> Implement libata.force_cbl parameter to work around incorrect PATA >> cable detection. > > This seems to be a pretty hopeless hack as it assumes all your devices > are on the same cable (most boxes now have SATA and PATA). If we are > going to do this we need a way to specify which controller/device as we > will do for geometry forcing and other stuff. This only forces PATA controllers to certain cable type. It's a last resort method for installation or live media - just enough to get things going. -- tejun