On Mon, 25 May 2015 01:24:04 -0400
Jason Wang <jasow...@redhat.com> wrote:
> Signed-off-by: Jason Wang <jasow...@redhat.com>
> ---
> drivers/vhost/net.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c
> index 7d137a4..5ee28b7 100644
> --- a/drivers/vhost/net.c
> +++ b/drivers/vhost/net.c
> @@ -320,6 +320,9 @@ static void handle_tx(struct vhost_net *net)
> hdr_size = nvq->vhost_hlen;
> zcopy = nvq->ubufs;
>
> + /* Finish pending interrupts first */
> + vhost_check_coalesce_and_signal(vq->dev, vq, false);
> +
> for (;;) {
> /* Release DMAs done buffers first */
> if (zcopy)
> @@ -415,6 +418,7 @@ static void handle_tx(struct vhost_net *net)
> }
> }
> out:
> + vhost_check_coalesce_and_signal(vq->dev, vq, true);
> mutex_unlock(&vq->mutex);
> }
>
> @@ -554,6 +558,9 @@ static void handle_rx(struct vhost_net *net)
> vq->log : NULL;
> mergeable = vhost_has_feature(vq, VIRTIO_NET_F_MRG_RXBUF);
>
> + /* Finish pending interrupts first */
> + vhost_check_coalesce_and_signal(vq->dev, vq, false);
> +
> while ((sock_len = peek_head_len(sock->sk))) {
> sock_len += sock_hlen;
> vhost_len = sock_len + vhost_hlen;
> @@ -638,6 +645,7 @@ static void handle_rx(struct vhost_net *net)
> }
> }
> out:
> + vhost_check_coalesce_and_signal(vq->dev, vq, true);
> mutex_unlock(&vq->mutex);
> }
>
Could you implement ethtool control of these coalescing parameters?
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