[ovs-dev] [PATCH RFC 1/1] netdev-dpdk: add dpdk vhost-user ports

[Pravin Shelar]

On Thu, Apr 2, 2015 at 8:37 AM, Traynor, Kevin <kevin.traynor at intel.com> wrote:
>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces at openvswitch.org] On Behalf Of Pravin Shelar
>> Sent: Friday, March 27, 2015 6:08 PM
>> To: Flavio Leitner
>> Cc: dev at openvswitch.org
>> Subject: Re: [ovs-dev] [PATCH RFC 1/1] netdev-dpdk: add dpdk vhost-user ports
>>
>> On Fri, Mar 27, 2015 at 6:57 AM, Flavio Leitner <fbl at sysclose.org> wrote:
>> > On Fri, 20 Mar 2015 10:53:14 -0700
>> > Pravin Shelar <pshelar at nicira.com> wrote:
>> >
>> >> On Thu, Mar 19, 2015 at 11:48 AM, Ciara Loftus
>> >> <ciara.loftus at intel.com> wrote:
>> >> > This patch adds support for a new port type to the userspace
>> >> > datapath called dpdkvhostuser. It adds to the existing
>> >> > infrastructure of vhost-cuse, however disables vhost-cuse ports in
>> >> > favour of vhost-user ports.
>> >> >
>> >> > A new dpdkvhostuser port will create a unix domain socket which when
>> >> > provided to QEMU is used to facilitate communication between the
>> >> > virtio-net device on the VM and the OVS port.
>> >> >
>> >> Thanks for the patch. I have pushed OVS DPDK vHost cuse patch. Once we
>> >> add support for vhost user, vhost-cuse support should be dropped.
>> >
>> > Do you mean to literally take vhost-cuse out of the code? If so, yes,
>> > I think that makes sense.
>> >
>>
>> Yes. thats what I meant.
>
> One issue with removing is that vhost-user is only supported from QEMU 2.1.0
> onwards. If anyone is using an older version of QEMU they would not be able
> to use vhost-user, whereas vhost-cuse will support older versions of QEMU.
>

Are there distribution still using older QEMU?