}
static inline void
-vhost_enable_notify_split(struct vhost_virtqueue *vq, int enable)
+vhost_enable_notify_split(struct virtio_net *dev,
+ struct vhost_virtqueue *vq, int enable)
{
- if (enable)
- vq->used->flags &= ~VRING_USED_F_NO_NOTIFY;
- else
- vq->used->flags |= VRING_USED_F_NO_NOTIFY;
+ if (!(dev->features & (1ULL << VIRTIO_RING_F_EVENT_IDX))) {
+ if (enable)
+ vq->used->flags &= ~VRING_USED_F_NO_NOTIFY;
+ else
+ vq->used->flags |= VRING_USED_F_NO_NOTIFY;
+ } else {
+ if (enable)
+ vhost_avail_event(vq) = vq->last_avail_idx;
+ }
}
static inline void
if (vq_is_packed(dev))
vhost_enable_notify_packed(dev, vq, enable);
else
- vhost_enable_notify_split(vq, enable);
+ vhost_enable_notify_split(dev, vq, enable);
return 0;
}