NVME_MINOR_INST_SHIFT
#define NVME_MINOR(inst, nsid) (((inst) << NVME_MINOR_INST_SHIFT) | (nsid))
#define NVME_MINOR_INST(minor) ((minor) >> NVME_MINOR_INST_SHIFT)
#define NVME_MINOR_NSID(minor) ((minor) & ((1 << NVME_MINOR_INST_SHIFT) - 1))