FM / parameters

/sys/module/dm_mod/parameters

Name	Size	Mode	Actions
dm_mq_nr_hw_queues	4096	0644	edit dl rm
dm_mq_queue_depth	4096	0644	edit dl rm
dm_numa_node	4096	0644	edit dl rm
kcopyd_subjob_size_kb	4096	0644	edit dl rm
reserved_bio_based_ios	4096	0644	edit dl rm
reserved_rq_based_ios	4096	0644	edit dl rm
stats_current_allocated_bytes	4096	0444	edit dl rm
swap_bios	4096	0644	edit dl rm
use_blk_mq	4096	0644	edit dl rm

Edit: /sys/module/dm_mod/parameters/use_blk_mq (4096B)