[dpdk-users] VIRTIO for containers

[Tan, Jianfeng]

Avi,

> -----Original Message-----
> From: Avi Cohen (A) [mailto:avi.cohen at huawei.com]
> Sent: Monday, June 26, 2017 2:17 PM
> To: Tan, Jianfeng; dpdk-ovs at lists.01.org; users at dpdk.org
> Subject: RE: VIRTIO for containers
> 
> Thanks Jianfeng,
> For containers that are *not running*  DPDK  -  are there any thoughts to
> develop a 'virtio like' device? , for example to connect the container to OVS-
> DPDK ?

We have developed virtio-user + vhost-kernel as the backend. In that scenario, you can add the tap interface into a container network namespace. And there's a vhost kthread to push the data out to user space.

And I cannot guarantee the performance as it has diametric model in VM (virtio) - OVS-DPDK (vhost).


> I've tested the performance of a container connected to OVS-DPDK  via
> vdev-af_packet  and processed by virtual PMD, and its performance is good
> [uses mmap'ed to userspace  - zero copy RX/TX ring buffer]
> but not good as  the performance  of a  VM connected  to OVS-DPDK (@host)
> via vhost-user virtio.
> Best Regards
> avi
> 
> > -----Original Message-----
> > From: Tan, Jianfeng [mailto:jianfeng.tan at intel.com]
> > Sent: Monday, 26 June, 2017 6:15 AM
> > To: Avi Cohen (A); dpdk-ovs at lists.01.org; users at dpdk.org
> > Subject: RE: VIRTIO for containers
> >
> > Hi Avi,
> >
> > > -----Original Message-----
> > > From: users [mailto:users-bounces at dpdk.org] On Behalf Of Avi Cohen (A)
> > > Sent: Sunday, June 25, 2017 11:13 PM
> > > To: dpdk-ovs at lists.01.org; users at dpdk.org
> > > Subject: [dpdk-users] VIRTIO for containers
> > >
> > > Hello,
> > > Does  anyone know the status of this project
> > > http://dpdk.org/ml/archives/dev/2015-November/027732.html  -
> > > Implementing a virtio device for containers ?
> >
> > It has been upstreamed since v16.07. Here is a howto doc:
> >
> http://dpdk.org/doc/guides/howto/virtio_user_for_container_networking.
> h
> > tml
> >
> >
> > Thanks,
> > Jianfeng
> >
> > >
> > > Best Regards
> > > avi