def check():
yield delay(100)
yield clk.posedge
rst.next = 1
yield clk.posedge
rst.next = 0
yield clk.posedge
yield delay(100)
yield clk.posedge
# testbench stimulus
for rate, mii in [(1, 0), (10, 0), (5, 1)]:
clk_enable_rate.next = rate
mii_select.next = mii
yield delay(100)
for payload_len in list(range(1, 18)) + list(range(64, 82)):
yield clk.posedge
print("test 1: test packet, length %d" % payload_len)
current_test.next = 1
test_frame = eth_ep.EthFrame()
test_frame.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame.eth_src_mac = 0x5A5152535455
test_frame.eth_type = 0x8000
test_frame.payload = bytearray(range(payload_len))
test_frame.update_fcs()
axis_frame = test_frame.build_axis_fcs()
gmii_frame = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame))
source.send(gmii_frame)
yield sink.wait()
rx_frame = sink.recv()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame
assert sink.empty()
yield delay(100)
yield clk.posedge
print("test 2: back-to-back packets, length %d" % payload_len)
current_test.next = 2
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame2))
source.send(gmii_frame1)
source.send(gmii_frame2)
yield sink.wait()
rx_frame = sink.recv()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame1
yield sink.wait()
rx_frame = sink.recv()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink.empty()
yield delay(100)
yield clk.posedge
print("test 3: truncated frame, length %d" % payload_len)
current_test.next = 3
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
axis_frame1.data = axis_frame1.data[:-1]
error_bad_frame_asserted.next = 0
error_bad_fcs_asserted.next = 0
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame2))
source.send(gmii_frame1)
source.send(gmii_frame2)
yield sink.wait()
rx_frame = sink.recv()
assert error_bad_frame_asserted
assert error_bad_fcs_asserted
assert rx_frame.user[-1]
yield sink.wait()
rx_frame = sink.recv()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink.empty()
yield delay(100)
yield clk.posedge
print("test 4: errored frame, length %d" % payload_len)
current_test.next = 4
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
error_bad_frame_asserted.next = 0
error_bad_fcs_asserted.next = 0
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' +
bytearray(axis_frame2))
gmii_frame1.error = 1
source.send(gmii_frame1)
source.send(gmii_frame2)
yield sink.wait()
rx_frame = sink.recv()
assert error_bad_frame_asserted
assert not error_bad_fcs_asserted
assert rx_frame.user[-1]
yield sink.wait()
rx_frame = sink.recv()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink.empty()
yield delay(100)
raise StopSimulation
def check():
yield delay(100)
yield clk.posedge
rst.next = 1
yield clk.posedge
rst.next = 0
yield clk.posedge
yield delay(100)
yield clk.posedge
# testbench stimulus
for payload_len in list(range(1, 18)) + list(range(64, 82)):
yield clk.posedge
print("test 1: test packet, length %d" % payload_len)
current_test.next = 1
test_frame = eth_ep.EthFrame()
test_frame.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame.eth_src_mac = 0x5A5152535455
test_frame.eth_type = 0x8000
test_frame.payload = bytearray(range(payload_len))
test_frame.update_fcs()
axis_frame = test_frame.build_axis_fcs()
gmii_frame = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame))
source_queue.put(gmii_frame)
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
yield clk.posedge
yield clk.posedge
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame
assert sink_queue.empty()
yield delay(100)
yield clk.posedge
print("test 2: back-to-back packets, length %d" % payload_len)
current_test.next = 2
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame2))
source_queue.put(gmii_frame1)
source_queue.put(gmii_frame2)
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
yield clk.posedge
yield clk.posedge
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame1
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink_queue.empty()
yield delay(100)
yield clk.posedge
print("test 3: truncated frame, length %d" % payload_len)
current_test.next = 3
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
axis_frame1.data = axis_frame1.data[:-1]
error_bad_frame_asserted.next = 0
error_bad_fcs_asserted.next = 0
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame2))
source_queue.put(gmii_frame1)
source_queue.put(gmii_frame2)
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
yield clk.posedge
yield clk.posedge
assert error_bad_frame_asserted
assert error_bad_fcs_asserted
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
assert rx_frame.user[-1]
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink_queue.empty()
yield delay(100)
yield clk.posedge
print("test 4: errored frame, length %d" % payload_len)
current_test.next = 4
test_frame1 = eth_ep.EthFrame()
test_frame1.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame1.eth_src_mac = 0x5A5152535455
test_frame1.eth_type = 0x8000
test_frame1.payload = bytearray(range(payload_len))
test_frame1.update_fcs()
test_frame2 = eth_ep.EthFrame()
test_frame2.eth_dest_mac = 0xDAD1D2D3D4D5
test_frame2.eth_src_mac = 0x5A5152535455
test_frame2.eth_type = 0x8000
test_frame2.payload = bytearray(range(payload_len))
test_frame2.update_fcs()
axis_frame1 = test_frame1.build_axis_fcs()
axis_frame2 = test_frame2.build_axis_fcs()
error_bad_frame_asserted.next = 0
error_bad_fcs_asserted.next = 0
gmii_frame1 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame1))
gmii_frame2 = gmii_ep.GMIIFrame(
b'\x55\x55\x55\x55\x55\x55\x55\xD5' + bytearray(axis_frame2))
gmii_frame1.error = 1
source_queue.put(gmii_frame1)
source_queue.put(gmii_frame2)
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
while gmii_rx_dv or output_axis_tvalid or not source_queue.empty():
yield clk.posedge
yield clk.posedge
yield clk.posedge
yield clk.posedge
assert error_bad_frame_asserted
assert not error_bad_fcs_asserted
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
assert rx_frame.user[-1]
rx_frame = None
if not sink_queue.empty():
rx_frame = sink_queue.get()
eth_frame = eth_ep.EthFrame()
eth_frame.parse_axis(rx_frame)
eth_frame.update_fcs()
assert eth_frame == test_frame2
assert sink_queue.empty()
yield delay(100)
raise StopSimulation