+ else if (unformat
+ (line_input, "%U", unformat_vnet_sw_interface, vnm,
+ &sw_if_index))
+ {
+ vnet_hw_interface_t *hwif =
+ vnet_get_sup_hw_interface (vnm, sw_if_index);
+ if (hwif == NULL ||
+ vhost_user_dev_class.index != hwif->dev_class_index)
+ return clib_error_return (0, "Not a vhost interface");
+ }