From mboxrd@z Thu Jan 1 00:00:00 1970 From: Brian King Subject: [PATCH 0/6] libata: Support SATA attached via SAS Date: Wed, 07 Jun 2006 11:24:29 -0500 Message-ID: <4486FDBD.9030200@us.ibm.com> Reply-To: brking@us.ibm.com Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-scsi-owner@vger.kernel.org To: jgarzik@pobox.com Cc: "linux-ide@vger.kernel.org" , 'SCSI Mailing List' , James Bottomley List-Id: linux-ide@vger.kernel.org Jeff, Here is a refresh of my patchset to allow SAS HBAs to use libata to control attached SATA devices. It should apply cleanly to #upstream. James, After our discussion at the storage summit I think I have a better idea what you are looking for with a SATA transport class. Unfortunately, the problem I am facing is that I am dealing with a firmware stack (ipr) which does not expose the physical transport to the host. The ipr firmware does all the device discovery and reports a configuration table describing the attached devices, but does not export any physical topology information. At some point in the future I hope to be able to extract this information from the ipr firmware stack and convert ipr to be able to utilize the sas/sata transport class, but, unfortunately, the firmware interfaces to accomplish this aren't available at this time. Brian -- Brian King eServer Storage I/O IBM Linux Technology Center