Re: [net-next PATCH v5 0/6] XDP for virtio_net

On Thu, Dec 08, 2016 at 05:16:02PM -0500, David Miller wrote:

From: John Fastabend <john.fastabend@gmail.com>
Date: Thu, 8 Dec 2016 12:46:07 -0800

quoted

On 16-12-08 11:38 AM, Alexei Starovoitov wrote:

quoted

On Thu, Dec 08, 2016 at 02:17:02PM -0500, David Miller wrote:

quoted

From: John Fastabend <john.fastabend@gmail.com>
Date: Wed, 07 Dec 2016 12:10:47 -0800

quoted

This implements virtio_net for the mergeable buffers and big_packet
modes. I tested this with vhost_net running on qemu and did not see
any issues. For testing num_buf > 1 I added a hack to vhost driver
to only but 100 bytes per buffer.

 ...

So where are we with this?

There is one possible issue with a hang that Michael pointed out. I can
either spin a v6 or if you pull this v5 series in I can post a bugfix
for it. I am not seeing the issue in practice XDP virtio has been up
and running on my box here for days without issue.

If that's the case then please spin a v6 and I'll apply it.

I think 1/6 should be reworked, disabling/enabling GUEST_TSO
transparently without touching the LRO flag, and without adding
NDO callback.

-- 
MST