On 2017年08月21日 11:28, lu.zhip...@zte.com.cn wrote:
if (!vdev->use_guest_notifier_mask) {
/* TODO: check and handle errors. */
vhost_virtqueue_mask(dev, vdev, idx, false)
---------- set right callfd
}
if (k->query_guest_notifiers &&
k->query_guest_notifiers(qbus->parent) &&
virtio_queue_vector(vdev, idx) == VIRTIO_NO_VECTOR) {
file.fd = -1
r = dev->vhost_ops->vhost_set_vring_call(dev, &file)
-----------set call fd to -1
if (r) {
goto fail_vector
}
}
So the callfd of ovs+dpdk in host is -1. it can't be able to interact
with the guest.
The queue does not even an vector, so it won't generate any interrupt.
Why callfd is still needed?
Thanks
