NVME_MIN_IO_QUEUE_LEN
if (nvme->n_io_squeue_len < NVME_MIN_IO_QUEUE_LEN)
nvme->n_io_squeue_len = NVME_MIN_IO_QUEUE_LEN;
if (nvme->n_io_cqueue_len < NVME_MIN_IO_QUEUE_LEN)
nvme->n_io_cqueue_len = NVME_MIN_IO_QUEUE_LEN;
drive->d_qsize = MAX(drive->d_qsize, NVME_MIN_IO_QUEUE_LEN);