70 lines
2.5 KiB
Python
70 lines
2.5 KiB
Python
# This file is Copyright (c) 2015-2019 Florent Kermarrec <florent@enjoy-digital.fr>
|
|
# License: BSD
|
|
|
|
import unittest
|
|
|
|
from migen import *
|
|
|
|
from litex.soc.interconnect import wishbone
|
|
from litex.soc.interconnect.stream_sim import *
|
|
|
|
from liteeth.common import *
|
|
from liteeth.mac.core import LiteEthMACCore
|
|
|
|
from test.model import phy, mac
|
|
|
|
from litex.gen.sim import *
|
|
|
|
|
|
class DUT(Module):
|
|
def __init__(self):
|
|
self.submodules.phy_model = phy.PHY(8, debug=False)
|
|
self.submodules.mac_model = mac.MAC(self.phy_model, debug=False, loopback=True)
|
|
self.submodules.core = LiteEthMACCore(phy=self.phy_model, dw=8, with_preamble_crc=True)
|
|
|
|
self.submodules.streamer = PacketStreamer(eth_phy_description(8), last_be=1)
|
|
self.submodules.streamer_randomizer = Randomizer(eth_phy_description(8), level=50)
|
|
|
|
self.submodules.logger_randomizer = Randomizer(eth_phy_description(8), level=50)
|
|
self.submodules.logger = PacketLogger(eth_phy_description(8))
|
|
|
|
self.comb += [
|
|
Record.connect(self.streamer.source, self.streamer_randomizer.sink),
|
|
Record.connect(self.streamer_randomizer.source, self.core.sink),
|
|
Record.connect(self.core.source, self.logger_randomizer.sink),
|
|
Record.connect(self.logger_randomizer.source, self.logger.sink)
|
|
]
|
|
|
|
|
|
def main_generator(dut):
|
|
for i in range(2):
|
|
packet = mac.MACPacket([i for i in range(64)])
|
|
packet.target_mac = 0x010203040506
|
|
packet.sender_mac = 0x090A0B0C0C0D
|
|
packet.ethernet_type = 0x0800
|
|
packet.encode_header()
|
|
dut.streamer.send(packet)
|
|
yield from dut.logger.receive()
|
|
|
|
# check results
|
|
s, l, e = check(packet, dut.logger.packet)
|
|
print("shift " + str(s) + " / length " + str(l) + " / errors " + str(e))
|
|
|
|
class TestMACCore(unittest.TestCase):
|
|
def test(self):
|
|
dut = DUT()
|
|
generators = {
|
|
"sys" : [main_generator(dut),
|
|
dut.streamer.generator(),
|
|
dut.streamer_randomizer.generator(),
|
|
dut.logger_randomizer.generator(),
|
|
dut.logger.generator()],
|
|
"eth_tx": [dut.phy_model.phy_sink.generator(),
|
|
dut.phy_model.generator()],
|
|
"eth_rx": dut.phy_model.phy_source.generator()
|
|
}
|
|
clocks = {"sys": 10,
|
|
"eth_rx": 10,
|
|
"eth_tx": 10}
|
|
run_simulation(dut, generators, clocks, vcd_name="sim.vcd")
|