From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hannes Reinecke <hare@suse.de>
Subject: Re: about NPIV with qemu-kvm.
Date: Wed, 26 Oct 2011 07:26:38 +0200
Message-ID: <4EA79A0E.8030604@suse.de>
References: <CA+tHM2Hw4jzTNmNtD3ttVpyCFCHnFB9USWK5XsUK6vqGJVmGRg@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
Cc: Christoph Hellwig <chellwig@redhat.com>,
	Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>,
	kvm@vger.kernel.org, "Michael S. Tsirkin" <mst@redhat.com>,
	Stefan Hajnoczi <stefanha@gmail.com>, qemu-devel <qemu-devel@nongnu.org>,
	"Nicholas A. Bellinger" <nab@linux-iscsi.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Christoph Hellwig <hch@infradead.org>, Paolo Bonzini <pbonzini@redhat.com>,
	Linux Virtualization <virtualization@lists.linux-foundation.org>
To: ya su <suya94335@gmail.com>
Return-path: <qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org>
In-Reply-To: <CA+tHM2Hw4jzTNmNtD3ttVpyCFCHnFB9USWK5XsUK6vqGJVmGRg@mail.gmail.com>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
Errors-To: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org
Sender: qemu-devel-bounces+gceq-qemu-devel=gmane.org@nongnu.org
List-Id: kvm.vger.kernel.org

On 10/26/2011 06:40 AM, ya su wrote:
> hi, hannes:
>=20
>     I want to use NPIV with qemu-kvm, I issued the following command:
>=20
>     echo '1111222233334444:5555666677778888' >
> /sys/class/fc_host/host0/vport_create
>=20
>     and it will produce a new host6 and one vport succesfully, but it
> does not create any virtual hba pci device. so I don't know how to
> assign the virtual host to qemu-kvm.
>=20
Well, you can't. There is no mechanism for. When using NPIV you need
to pass in the individual LUNs via eg virtio-blk.

>     from your this mail, does array will first need to assign a lun to
> this vport? and through this new created disk, like device /dev/sdf,
> then I add qemu-kvm with -drive file=3D/dev/sdf,if=3Dvirtio... argument=
s?
>=20
Yes. That's what you need to do.

Cheers,

Hannes
--=20
Dr. Hannes Reinecke              zSeries & Storage
hare@suse.de                  +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg
GF: Markus Rex, HRB 16746 (AG N=FCrnberg)