From owner-freebsd-scsi@FreeBSD.ORG Wed May 7 13:34:16 2014 Return-Path: Delivered-To: freebsd-scsi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 5E185CC0 for ; Wed, 7 May 2014 13:34:16 +0000 (UTC) Received: from smtp.infotech.no (smtp.infotech.no [82.134.31.41]) by mx1.freebsd.org (Postfix) with ESMTP id 1BE099B3 for ; Wed, 7 May 2014 13:34:15 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp.infotech.no (Postfix) with ESMTP id 552BF20416A; Wed, 7 May 2014 15:24:08 +0200 (CEST) X-Virus-Scanned: by amavisd-new-2.6.6 (20110518) (Debian) at infotech.no Received: from smtp.infotech.no ([127.0.0.1]) by localhost (smtp.infotech.no [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id B2LwvwxyczOp; Wed, 7 May 2014 15:24:08 +0200 (CEST) Received: from [10.7.0.6] (unknown [10.7.0.6]) by smtp.infotech.no (Postfix) with ESMTPA id 6AF63204163; Wed, 7 May 2014 15:24:07 +0200 (CEST) Message-ID: <536A33F6.7080401@interlog.com> Date: Wed, 07 May 2014 09:24:06 -0400 From: Douglas Gilbert Reply-To: dgilbert@interlog.com User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0 MIME-Version: 1.0 To: Borja Marcos , freebsd-scsi@freebsd.org Subject: Re: Testing new mpr driver References: <8A41AB90-AC2F-4200-91D6-3D3CF9E8A835@sarenet.es> In-Reply-To: <8A41AB90-AC2F-4200-91D6-3D3CF9E8A835@sarenet.es> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-scsi@freebsd.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: SCSI subsystem List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 07 May 2014 13:34:16 -0000 On 14-05-07 04:59 AM, Borja Marcos wrote: > > Hi > > I just saw that there's a new driver for LSI3008 SAS3 cards. I have updated a test system to -STABLE, installed one of those cards (in this case, the OEM version sold by IBM as a HBA, with IT firmware). > > mpr0: port 0x3f00-0x3fff mem 0x912f0000-0x912fffff irq 32 at device 0.0 on pci17 > > > > > Excellent so far I have noticed a difference with the mps based LSI2008 cards: in the same hardware configuration as my previous tests (except, of course, the HBA) it seems to be faster. And I am using just one cable to connect the HBA to the backplane instead of two, I didn't have another cable available. > > at scbus0 target 25 lun 0 (pass0,da0) > at scbus0 target 26 lun 0 (pass1,da1) > at scbus0 target 27 lun 0 (pass2,da2) > at scbus0 target 28 lun 0 (pass3,da3) > at scbus0 target 29 lun 0 (pass4,da4) > at scbus0 target 30 lun 0 (pass5,da5) > at scbus0 target 33 lun 0 (pass6,da6) > at scbus0 target 34 lun 0 (pass7,da7) > at scbus0 target 35 lun 0 (pass8,da8) > at scbus0 target 263 lun 0 (pass9,ses0) > at scbus0 target 288 lun 0 (pass10,ses1) > > I have created a ZFS pool with the SSDs. With the LSI2008 based card I needed to run several bonnie++ instances in parallel in order to saturate the I/O bandwidth, and with this card a single instance reaches peak performance. > > Does it make sense at all? > > I assume that the driver could be considered almost production ready. Is it going to be included in 9.3 as well, as the manpage states, or is it a typo? I'm keen to try the mpr driver and have LSI 9300-4i/4i4e HBAs plus a 12 Gbps SSD and SAS-2 bits to test with it. [Free-standing SAS-3 expanders are not common (but Areca just released one).] My FreeBSD system is at 10.0-RELEASE-p2 and moving it to -STABLE looks like a fair amount of pain. Further I can see nothing on the FreeBSD site about the mpr driver. Could you supply links to any information about this driver? Is it likely to appear in 10.0-RELEASE-p? any time soon? FreeBSD is seriously lacking in the SAS-3 area compared to some other OSes. As SATA SSDs are strangled by their 6 Gbps (single port) interface, several new SAS 12 Gbps (SAS-3) products have appeared in the last month or so, with more to follow. Doug Gilbert