NVME_CQ_IRQ_ENABLED
c.create_cq.cq_flags = cpu_to_le16(NVME_QUEUE_PHYS_CONTIG | NVME_CQ_IRQ_ENABLED);
flags |= NVME_CQ_IRQ_ENABLED;
if (flags & NVME_CQ_IRQ_ENABLED) {
NVME_CQ_IRQ_ENABLED | NVME_QUEUE_PHYS_CONTIG,