mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_VHOST_USER_DETAILS);
mp->sw_if_index = ntohl (vui->sw_if_index);
mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);
mp->_vl_msg_id = ntohs (VL_API_SW_INTERFACE_VHOST_USER_DETAILS);
mp->sw_if_index = ntohl (vui->sw_if_index);
mp->virtio_net_hdr_sz = ntohl (vui->virtio_net_hdr_sz);