From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Vrabel Subject: Re: xen & MacVtap Date: Wed, 8 Jan 2014 13:18:32 +0000 Message-ID: <52CD5028.2060802@citrix.com> References: <41ded77d.2bbc4.143715f985c.Coremail.topperxin@126.com> <20140108122710.GZ2924@reaktio.net> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20140108122710.GZ2924@reaktio.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: =?ISO-8859-1?Q?Pasi_K=E4rkk=E4inen?= Cc: xen-devel , "xen-users@lists.xensource.com" , topperxin List-Id: xen-devel@lists.xenproject.org On 08/01/14 12:27, Pasi K=E4rkk=E4inen wrote: > On Wed, Jan 08, 2014 at 06:22:06PM +0800, topperxin wrote: >> Hi list >> As we all know, SR-IOV technology can improve VNIC's performa= nce, >> while it can not support live migration. I get some information recen= tly >> that on KVM+Virtio platform, if we use MacVtap + SR-IOV, the live >> migration could be done successfully. What I want to know is may I >> configure MacVtap on Xen? >> Any replies are welcome! Thanks a lot. > = > I think years ago (2009, perhaps) when SR-IOV was first demoed with Xen > it was demoed with live migration.. it was a mixture of SR-IOV VF + Xen v= if. > = > So with some toolstack/script hackery you can do it. (=3Duse the vif pv d= river during migration, normally sr-iov vf). You may find creating an active-backup bond in the guest useful. The active bond link is the SR-IOV device and the backup is the VIF. I've not tried this myself. David