144 device_param_cb(queue_mode, &null_queue_mode_param_ops, &g_queue_mode, 0444);
145 MODULE_PARM_DESC(queue_mode, "Block interface to use (0=bio,1=rq,2=multiqueue)");
347 NULLB_DEVICE_ATTR(queue_mode, uint, NULL);
589 	dev->queue_mode = g_queue_mode;  in null_alloc_dev()
688 	int queue_mode = cmd->nq->dev->queue_mode;  in end_cmd()  local
690 	switch (queue_mode)  {  in end_cmd()
1218 	if (nullb->dev->queue_mode == NULL_Q_MQ)  in null_stop_queue()
1226 	if (nullb->dev->queue_mode == NULL_Q_MQ)  in null_restart_queue_async()
1271 	if (dev->queue_mode == NULL_Q_BIO)  in null_handle_memory_backed()
1287 	if (dev->queue_mode == NULL_Q_BIO && bio_op(cmd->bio) == REQ_OP_READ) {  in nullb_zero_read_cmd_buffer()
1310 		switch (cmd->nq->dev->queue_mode) {  in nullb_complete_cmd()
1576 	if (dev->queue_mode == NULL_Q_MQ &&  in null_del_dev()
1728 	if (dev->queue_mode == NULL_Q_MQ && dev->use_per_node_hctx) {  in null_validate_conf()
1736 	dev->queue_mode = min_t(unsigned int, dev->queue_mode, NULL_Q_MQ);  in null_validate_conf()
1748 	if (dev->queue_mode == NULL_Q_BIO)  in null_validate_conf()
1810 	if (dev->queue_mode == NULL_Q_MQ) {  in null_add_dev()
1831 	} else if (dev->queue_mode == NULL_Q_BIO) {  in null_add_dev()
1888 	if (dev->queue_mode == NULL_Q_MQ && nullb->tag_set == &nullb->__tag_set)  in null_add_dev()