nvme_mmio_read_4
ctrlr->cap_lo = cap_lo = nvme_mmio_read_4(ctrlr, cap_lo);
ctrlr->cap_hi = cap_hi = nvme_mmio_read_4(ctrlr, cap_hi);
vs = nvme_mmio_read_4(ctrlr, vs);
pmrcap = nvme_mmio_read_4(ctrlr, pmrcap);
cap_lo = nvme_mmio_read_4(ctrlr, cap_lo);
(nvme_mmio_read_4(ctrlr, csts) == NVME_GONE);
cc = nvme_mmio_read_4(ctrlr, cc);
csts = nvme_mmio_read_4(ctrlr, csts);
csts = nvme_mmio_read_4(ctrlr, csts);
cc = nvme_mmio_read_4(ctrlr, cc);
csts = nvme_mmio_read_4(ctrlr, csts);
cc = nvme_mmio_read_4(ctrlr, cc);
csts = nvme_mmio_read_4(ctrlr, csts);
csts = nvme_mmio_read_4(ctrlr, csts);
cpi->transport_version = nvme_mmio_read_4(ctrlr, vs);
cpi->protocol_version = nvme_mmio_read_4(ctrlr, vs);
nvmex->spec = nvme_mmio_read_4(ctrlr, vs);