vhost: add features changed callback

[dpdk.git] / lib / librte_vhost / vhost_user.c

diff --git a/lib/librte_vhost/vhost_user.c b/lib/librte_vhost/vhost_user.c
index 604d95d..8b12ebb 100644 (file)
--- a/lib/librte_vhost/vhost_user.c
+++ b/lib/librte_vhost/vhost_user.c
@@ -167,6 +167,11 @@ vhost_user_set_features(struct virtio_net *dev, uint64_t features)
        if (features & ~vhost_features)
                return -1;
 
+       if ((dev->flags & VIRTIO_DEV_RUNNING) && dev->features != features) {
+               if (dev->notify_ops->features_changed)
+                       dev->notify_ops->features_changed(dev->vid, features);
+       }
+
        dev->features = features;
        if (dev->features &
                ((1 << VIRTIO_NET_F_MRG_RXBUF) | (1ULL << VIRTIO_F_VERSION_1))) {