+
+ if (builtin_net_driver)
+ rte_vhost_driver_set_features(file, VIRTIO_NET_FEATURES);
+
+ if (mergeable == 0) {
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_MRG_RXBUF);
+ }
+
+ if (enable_tx_csum == 0) {
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_CSUM);
+ }
+
+ if (enable_tso == 0) {
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_HOST_TSO4);
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_HOST_TSO6);
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_GUEST_TSO4);
+ rte_vhost_driver_disable_features(file,
+ 1ULL << VIRTIO_NET_F_GUEST_TSO6);
+ }
+
+ if (promiscuous) {
+ rte_vhost_driver_enable_features(file,
+ 1ULL << VIRTIO_NET_F_CTRL_RX);
+ }
+
+ ret = rte_vhost_driver_callback_register(file,
+ &virtio_net_device_ops);
+ if (ret != 0) {
+ rte_exit(EXIT_FAILURE,
+ "failed to register vhost driver callbacks.\n");
+ }
+
+ if (rte_vhost_driver_start(file) < 0) {
+ rte_exit(EXIT_FAILURE,
+ "failed to start vhost driver.\n");
+ }