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bench: hw_itl: Add comments

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This commit is contained in:
Markus Koch 2022-05-13 18:19:35 +02:00
parent fd721ae24f
commit 0e80900426
1 changed files with 9 additions and 2 deletions
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11
cocotb/hw_itl.py
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@ -1,4 +1,4 @@
#!/usr/bin/env python #!/usr/bin/env python3
import cocotb import cocotb
from cocotb.triggers import * from cocotb.triggers import *
@ -14,6 +14,13 @@ import os
import asyncio import asyncio
import fcntl import fcntl
'''
# Set up virtual device using
sudo ip link add virt0 type dummy
sudo ip link set up virt0
sudo ip addr add 192.168.2.10/24 dev virt0
'''
class MacDevReceiver(): class MacDevReceiver():
def __init__(self, dut, eth_tx, eth_rx, dev): def __init__(self, dut, eth_tx, eth_rx, dev):
self.dut = dut self.dut = dut
@ -28,7 +35,7 @@ class MacDevReceiver():
ETH_P_ALL=3 ETH_P_ALL=3
self.macdev=socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL)) self.macdev=socket.socket(socket.AF_PACKET, socket.SOCK_RAW, socket.htons(ETH_P_ALL))
self.macdev.bind((dev, 0)) self.macdev.bind((dev, 0))
fcntl.fcntl(self.macdev, fcntl.F_SETFL, os.O_NONBLOCK) fcntl.fcntl(self.macdev, fcntl.F_SETFL, os.O_NONBLOCK) # Not the best way to poll, but I couldn't get asyncio to play nicely with threading...
async def main(self): async def main(self):
ETH_HEAD = b'\x55\x55\x55\x55\xD5' ETH_HEAD = b'\x55\x55\x55\x55\xD5'