Re: [bpf-next V2 PATCH 11/14] virtio_net: setup xdp_rxq_info

On Fri, 22 Dec 2017 18:12:31 +0100
Jesper Dangaard Brouer [off-list ref] wrote:

The virtio_net driver doesn't dynamically change the RX-ring queue
layout and backing pages, but instead reject XDP setup if all the
conditions for XDP is not meet.  Thus, the xdp_rxq_info also remains
fairly static.  This allow us to simply add the reg/unreg to
net_device open/close functions.

Driver hook points for xdp_rxq_info:
 * reg  : virtnet_open
 * unreg: virtnet_close

Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <redacted>
Cc: virtualization@lists.linux-foundation.org
Signed-off-by: Jesper Dangaard Brouer <redacted>
---
 drivers/net/virtio_net.c |   12 +++++++++++-

Found a bug while testing this... I forgot to update receive_mergeable() too.

I'll send a V3

-- 
Best regards,
  Jesper Dangaard Brouer
  MSc.CS, Principal Kernel Engineer at Red Hat
  LinkedIn: http://www.linkedin.com/in/brouer