Function rte_vhost_async_channel_register

dpdk/lib/vhost/vhost.c:1844–1875

}

int
rte_vhost_async_channel_register(int vid, uint16_t queue_id)
{
	struct vhost_virtqueue *vq;
	struct virtio_net *dev = get_device(vid);
	int ret;

	if (dev == NULL)
		return -1;

	if (queue_id >= VHOST_MAX_VRING)
		return -1;

	vq = dev->virtqueue[queue_id];

	if (unlikely(vq == NULL || !dev->async_copy || dev->vdpa_dev != NULL))
		return -1;

	rte_rwlock_write_lock(&vq->access_lock);

	if (unlikely(!vq->access_ok)) {
		ret = -1;
		goto out_unlock;
	}

	ret = async_channel_register(dev, vq);

out_unlock:
	rte_rwlock_write_unlock(&vq->access_lock);

	return ret;
}

int
rte_vhost_async_channel_register_thread_unsafe(int vid, uint16_t queue_id)