From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Scholl Subject: LSI Logic 1068E and SATA port replicators (Sil3726) Date: Fri, 04 Dec 2009 09:28:44 +0100 Message-ID: <4B18C83C.6060105@diskware.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Received: from mail01.globalinfinity.de ([85.10.196.218]:57948 "EHLO mail.diskware.net" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1754433AbZLDIwO (ORCPT ); Fri, 4 Dec 2009 03:52:14 -0500 Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: linux-scsi@vger.kernel.org Hello all, [disclaimer: what follows is probably a really stupid idea after all.] We would like to use a LSI SAS 1068E board with Sil3726 SATA port replicators. This obviously "fails" in that only 1 disk out of the 5 connected is actually visible. I found, if SATA drivers are to support a port multiplier, they inhert from sata_pmp_port_ops. Is an analog infrastructure available for the sas-based HBAs to support SATA port multipliers? (BTW is such a setup actually supported form a protocol point of view?) I'm not a regular kernel hacker, so I cannot really help you in getting quality sata mpm support (if possible after all) into the sas drivers. What I can definitely offer is my time and will to test the driver modifications you would send me. Martin