Re: [Qemu-devel] [PATCH 4/4] virtio-net: notify backend with number of queue pairs setup

[Michael S. Tsirkin]

On Fri, Jan 12, 2018 at 03:56:58PM +0100, Maxime Coquelin wrote:
> Signed-off-by: Maxime Coquelin <address@hidden>
> ---
>  hw/net/virtio-net.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/hw/net/virtio-net.c b/hw/net/virtio-net.c
> index 38674b08aa..b8908c98ed 100644
> --- a/hw/net/virtio-net.c
> +++ b/hw/net/virtio-net.c
> @@ -561,6 +561,7 @@ static int peer_detach(VirtIONet *n, int index)
>  
>  static void virtio_net_set_queues(VirtIONet *n)
>  {
> +    NetClientState *nc = qemu_get_queue(n->nic);
>      int i;
>      int r;
>  
> @@ -568,6 +569,10 @@ static void virtio_net_set_queues(VirtIONet *n)
>          return;
>      }
>  
> +    if (get_vhost_net(nc->peer)) {
> +        vhost_net_set_queue_num(nc->peer, n->curr_queues);
> +    }
> +
>      for (i = 0; i < n->max_queues; i++) {
>          if (i < n->curr_queues) {
>              r = peer_attach(n, i);

Seems wrong to me.
curr_queues isn't the max # of queues configured as the documentation says.
It's the number of queues currently in use by driver.


> -- 
> 2.14.3