NVME_CAP_MPSMAX
(u_int)NVME_CAP_MPSMAX(r8), (1 << NVME_CAP_MPSMAX(r8)));
if (NVME_CAP_MPSMAX(cap) < PAGE_SHIFT)
sc->sc_mps = 1 << NVME_CAP_MPSMAX(cap);