pqi_start_io
void pqi_start_io(pqi_state_t *s, pqi_queue_group_t *qg, pqi_path_t path,
pqi_start_io(s, &s->s_queue_groups[PQI_DEFAULT_QUEUE_GROUP],
pqi_start_io(s, &s->s_queue_groups[PQI_DEFAULT_QUEUE_GROUP], RAID_PATH,
pqi_start_io(s, &s->s_queue_groups[PQI_DEFAULT_QUEUE_GROUP],
pqi_start_io(s, qg, RAID_PATH, NULL);
pqi_start_io(s, qg, AIO_PATH, NULL);