Re: [Qemu-devel] vhost-user graceful connect/disconnect

[Stefan Hajnoczi]

On Thu, Jan 04, 2018 at 07:15:38PM +0800, Wei Wang wrote:
> On 01/04/2018 06:47 PM, Stefan Hajnoczi wrote:
> > On Thu, Dec 21, 2017 at 06:01:29AM -0500, Marc-André Lureau wrote:
> > 
> > I'm not going to prototype this yet, I'm working on virtio-vhost-user
> > first, but eventually I might get back to -object vhost-user(-backend).
> > 
> 
> Hi Stefan, are you implementing the guest slave and vhost-pci driver (we've
> posted to the dpdk mailinglist) as well? and do you have an estimation when
> would the prototype be ready?

I'm implementing the "[RFC virtio-dev] vhost-user-slave: add vhost-user
slave device type" device in QEMU and DPDK in order to show how the
ideas we've discussed work.

Here is the VIRTIO spec link again:
https://stefanha.github.io/virtio/vhost-user-slave.html#x1-2830007

It integrates into DPDK's librte_vhost so that existing vhost-user code
works over AF_UNIX and virtio-vhost-user without code duplication or
rewriting the devices.

I hope you'll like the code when it's done.  If not, it still has useful
code and ideas that would be needed to complete the vhost-pci RFC work
like extending the PCI transport in the VIRTIO spec, handling vhost-user
reconnection, etc.

I'm aiming to send an RFC in the next 2 weeks.

Stefan

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