From owner-freebsd-hackers@freebsd.org Wed Sep 26 17:39:26 2018 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 36AF610B2868 for ; Wed, 26 Sep 2018 17:39:26 +0000 (UTC) (envelope-from leres@freebsd.org) Received: from xse.com (xse.com [IPv6:2607:f2f8:abb8::3]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "xse.com", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A9DE486E38 for ; Wed, 26 Sep 2018 17:39:25 +0000 (UTC) (envelope-from leres@freebsd.org) Received-SPF: pass (dot.xse.com: authenticated connection) receiver=dot.xse.com; client-ip=2001:558:6045:10:9084:9e0:4b6d:eb99; helo=ice.alameda.xse.com; envelope-from=leres@freebsd.org; x-software=spfmilter 2.001 http://www.acme.com/software/spfmilter/ with libspf2-1.2.10; Received: from ice.alameda.xse.com (ice.xse.com [IPv6:2001:558:6045:10:9084:9e0:4b6d:eb99]) (authenticated bits=0) by dot.xse.com (8.15.2/8.15.2) with ESMTPSA id w8QHdLvE094794 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Wed, 26 Sep 2018 10:39:23 -0700 (PDT) (envelope-from leres@freebsd.org) X-Authentication-Warning: dot.xse.com: Host ice.xse.com [IPv6:2001:558:6045:10:9084:9e0:4b6d:eb99] claimed to be ice.alameda.xse.com To: FreeBSD Hackers From: Craig Leres Subject: Supermicro AOC-SLG3-2M2 dual M.2 card only identifies one drive Message-ID: Date: Wed, 26 Sep 2018 10:39:21 -0700 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:60.0) Gecko/20100101 Thunderbird/60.0.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Virus-Scanned: clamav-milter 0.100.1 at dot.xse.com X-Virus-Status: Clean X-GBUdb-Analysis: Unknown X-MessageSniffer-Rules: 0-0-0-2107-c X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 26 Sep 2018 17:39:26 -0000 I picked up one of these and two intel 760p M.2 drives for use with a Supermicro X10SRA-F motherboard under 11.2-RELEASE-p3. The system only identifies drive that is mounted in the top slot. I believe this pci-e x8 card mostly just wires the (m-key) M.2 connectors pins to the pci slot pins. It looks like the top drive goes to the first 4 pci-e lanes and the bottom slot the next 4 pci-e lanes. I suspect the driver is not even looking for the nvme that is connected to the second set of lanes. Can anyone tell me what it takes to support this configuration? Craig