From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
To: Stefan Hajnoczi <stefanha@gmail.com>
Cc: Yaoli Zheng <yzheng@axcient.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: [Qemu-devel] [Xen-devel] Question about scsi emulation
Date: Mon, 23 Mar 2015 18:17:52 +0000 [thread overview]
Message-ID: <alpine.DEB.2.02.1503231813580.7982@kaball.uk.xensource.com> (raw)
In-Reply-To: <20150323124818.GD9268@stefanha-thinkpad.redhat.com>
On Mon, 23 Mar 2015, Stefan Hajnoczi wrote:
> On Wed, Mar 18, 2015 at 02:16:47PM -0700, Yaoli Zheng wrote:
> > We have problem using qemu emulated scsi driver(the old lsi). Wonder if any of other device model we can try for emulating scsi, and how we can get and config it in Xen? Having been told virtio-scsi is alternative one, but have no idea how to get it work in Xen.
>
> The MegaSAS HBA might be another option. Not sure whether MegaSAS or
> virtio-scsi are supported under Xen though.
Making MegaSAS HBA work on Xen should be easy.
Rather than virtio-scsi I would consider the new Xen pvscsi
frontend/backend drivers, now upstream in Linux
(drivers/scsi/xen-scsifront.c and drivers/xen/xen-scsiback.c). Usually
Xen PV drivers perform much better than virtio devices on Xen.
That said, probably most things would be better than the old lsi.
next prev parent reply other threads:[~2015-03-23 18:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 21:16 [Qemu-devel] Question about scsi emulation Yaoli Zheng
2015-03-23 12:48 ` Stefan Hajnoczi
2015-03-23 12:48 ` Stefan Hajnoczi
2015-03-23 18:17 ` Stefano Stabellini
2015-03-23 18:17 ` Stefano Stabellini [this message]
2015-03-24 0:20 ` Yaoli Zheng
2015-03-24 0:20 ` [Qemu-devel] [Xen-devel] " Yaoli Zheng
2015-03-24 9:56 ` Juergen Gross
2015-03-24 9:56 ` [Qemu-devel] " Juergen Gross
2015-03-24 17:00 ` Stefano Stabellini
2015-03-24 17:00 ` [Qemu-devel] [Xen-devel] " Stefano Stabellini
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