+from collections import OrderedDict
+
+from migen.fhdl.std import *
from migen.fhdl.std import *
+from migen.flow.actor import Sink, Source
+from migen.bank.description import *
+from migen.genlib.resetsync import AsyncResetSynchronizer
from migen.flow.actor import EndpointDescription
eth_mtu = 1532