NGBE_MAX_JUMBO_FRAME_SIZE
ifp->if_hardmtu = NGBE_MAX_JUMBO_FRAME_SIZE - ETHER_HDR_LEN -
NGBE_MAX_JUMBO_FRAME_SIZE, 1, NGBE_MAX_JUMBO_FRAME_SIZE, 0,
if (mhadd != NGBE_MAX_JUMBO_FRAME_SIZE)
NGBE_WRITE_REG(hw, NGBE_PSR_MAX_SZ, NGBE_MAX_JUMBO_FRAME_SIZE);