nvme_mmio_offsetof
(rman_get_size(ctrlr->resource) - nvme_mmio_offsetof(doorbell[0])) /
bus_read_4((sc)->resource, nvme_mmio_offsetof(reg))
bus_write_4((sc)->resource, nvme_mmio_offsetof(reg), val)
bus_write_4((sc)->resource, nvme_mmio_offsetof(reg), \
bus_write_4((sc)->resource, nvme_mmio_offsetof(reg) + 4, \
qpair->sq_tdbl_off = nvme_mmio_offsetof(doorbell[0]) +
qpair->cq_hdbl_off = nvme_mmio_offsetof(doorbell[0]) +