NVME_REV
cdata->ver = htole32(NVME_REV(1, 4));
if (ctrlr->cdata.ver >= NVME_REV(1, 2))
cdata->ver = htole32(NVME_REV(1, 4));
if (sc->cdata->ver >= NVME_REV(1, 2))
sc->regs.vs = NVME_REV(1,4); /* NVMe v1.4 */
cd->ver = NVME_REV(1,4);