OHCI_PAGE_SIZE
if (bus_space_map(sc->sc.iot, PLUM_OHCI_REGBASE, OHCI_PAGE_SIZE,
size, OHCI_PAGE_SIZE, 0, 0,
const size_t nbsitd = xfer->ux_bufsize / OHCI_PAGE_SIZE;
if (frlen > 2 * OHCI_PAGE_SIZE - offs)
frlen = 2 * OHCI_PAGE_SIZE - offs;
nstd += howmany(length, OHCI_PAGE_SIZE);
int maxlen = (2 * OHCI_PAGE_SIZE) - OHCI_PAGE_OFFSET(sdataphys);