diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/vhost/net.c | 35 |
1 files changed, 14 insertions, 21 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index ac0b954d758f..015abf333c62 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -547,34 +547,27 @@ static void vhost_net_busy_poll(struct vhost_net *net, mutex_unlock(&vq->mutex); } - static int vhost_net_tx_get_vq_desc(struct vhost_net *net, - struct vhost_net_virtqueue *nvq, + struct vhost_net_virtqueue *tnvq, unsigned int *out_num, unsigned int *in_num, struct msghdr *msghdr, bool *busyloop_intr) { - struct vhost_virtqueue *vq = &nvq->vq; - unsigned long uninitialized_var(endtime); - int r = vhost_get_vq_desc(vq, vq->iov, ARRAY_SIZE(vq->iov), + struct vhost_net_virtqueue *rnvq = &net->vqs[VHOST_NET_VQ_RX]; + struct vhost_virtqueue *rvq = &rnvq->vq; + struct vhost_virtqueue *tvq = &tnvq->vq; + + int r = vhost_get_vq_desc(tvq, tvq->iov, ARRAY_SIZE(tvq->iov), out_num, in_num, NULL, NULL); - if (r == vq->num && vq->busyloop_timeout) { + if (r == tvq->num && tvq->busyloop_timeout) { /* Flush batched packets first */ - if (!vhost_sock_zcopy(vq->private_data)) - vhost_tx_batch(net, nvq, vq->private_data, msghdr); - preempt_disable(); - endtime = busy_clock() + vq->busyloop_timeout; - while (vhost_can_busy_poll(endtime)) { - if (vhost_has_work(vq->dev)) { - *busyloop_intr = true; - break; - } - if (!vhost_vq_avail_empty(vq->dev, vq)) - break; - cpu_relax(); - } - preempt_enable(); - r = vhost_get_vq_desc(vq, vq->iov, ARRAY_SIZE(vq->iov), + if (!vhost_sock_zcopy(tvq->private_data)) + // vhost_net_signal_used(tnvq); + vhost_tx_batch(net, tnvq, tvq->private_data, msghdr); + + vhost_net_busy_poll(net, rvq, tvq, busyloop_intr, false); + + r = vhost_get_vq_desc(tvq, tvq->iov, ARRAY_SIZE(tvq->iov), out_num, in_num, NULL, NULL); } |