I810_BD_NUMS
port->bdl_size = sizeof (i810_bd_entry_t) * I810_BD_NUMS;
for (int i = 0; i < I810_BD_NUMS; i++) {
I810_BM_PUT8(regoff + I810_OFFSET_LVI, I810_BD_NUMS - 1);
I810_BM_PUT8(port->regoff + I810_OFFSET_LVI, (civ - 1) % I810_BD_NUMS);