From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:34057) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UhFMA-0000Hn-0a for qemu-devel@nongnu.org; Tue, 28 May 2013 04:34:16 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UhFM0-0004uP-UL for qemu-devel@nongnu.org; Tue, 28 May 2013 04:34:09 -0400 Received: from mx1.redhat.com ([209.132.183.28]:6975) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UhFM0-0004uG-Mp for qemu-devel@nongnu.org; Tue, 28 May 2013 04:34:00 -0400 Date: Tue, 28 May 2013 16:33:52 +0800 From: Asias He Message-ID: <20130528083352.GA19799@hj.localdomain> References: <1366381460-6041-1-git-send-email-pbonzini@redhat.com> <1366381460-6041-7-git-send-email-pbonzini@redhat.com> <51A4590F.90503@linux.vnet.ibm.com> <51A4644A.6070002@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <51A4644A.6070002@redhat.com> Subject: Re: [Qemu-devel] [PATCH 6/9] vhost-scsi: new device supporting the tcm_vhost Linux kernel module List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: "Michael S. Tsirkin" , Wenchao Xia , nab@linux-iscsi.org, qemu-devel@nongnu.org On Tue, May 28, 2013 at 10:01:14AM +0200, Paolo Bonzini wrote: > Il 28/05/2013 09:13, Wenchao Xia ha scritto: > >> > From: Nicholas Bellinger > >> > > >> > The WWPN specified in configfs is passed to "-device vhost-scsi-pci". > >> > The tgpt field of the SET_ENDPOINT ioctl is obsolete now, so it is not > >> > available from the QEMU command-line. Instead, I hardcode it to zero. > >> > > > Hi, Paolo > > Any document about how to config it correctly in configfs, before > > invoking qemu with the WWPN number? > > Unfortunately no, but vhost-scsi doesn't have many knobs (unlike > iSCSI for example) so it's quite simple. Here is an example: > > cd /sys/kernel/config/target > mkdir -p core/fileio_0/fileio > echo 'fd_dev_name=/home/pbonzini/test.img,fd_dev_size=5905580032' > core/fileio_0/fileio/control > echo 1 > core/fileio_0/fileio/enable > mkdir -p vhost/naa.600140554cf3a18e/tpgt_0/lun/lun_0 > cd vhost/naa.600140554cf3a18e/tpgt_0 > ln -sf ../../../../../core/fileio_0/fileio/ lun/lun_0/virtual_scsi_port > echo naa.60014053226f0388 > nexus > > The "nexus" value is the initiator WWN. naa.600140554cf3a18e is the > target WWN that you have to pass to "-device vhost-scsi-pci". > > Paolo For me, I always use targetcli utils instead of the sysfs interface. targetcli in F18 has vhost support now. -- Asias