return clib_error_return (0,
"please specify interface name or sw_if_index");
return clib_error_return (0,
"please specify interface name or sw_if_index");
if (hw == NULL || virtio_device_class.index != hw->dev_class_index)
return clib_error_return (0, "not a virtio interface");
if (hw == NULL || virtio_device_class.index != hw->dev_class_index)
return clib_error_return (0, "not a virtio interface");