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verilog-ethernet/tb/test_axis_ram_switch_1x4_256_64.py
Alex Forencich 4fa3870dea Remove string parameters
2021-06-02 15:08:43 -07:00

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#!/usr/bin/env python
"""
Copyright (c) 2020 Alex Forencich
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
"""
from myhdl import *
import os
import axis_ep
module = 'axis_ram_switch'
testbench = 'test_%s_1x4_256_64' % module
srcs = []
srcs.append("../rtl/%s.v" % module)
# srcs.append("../rtl/axis_ram_switch_input.v")
# srcs.append("../rtl/axis_ram_switch_output.v")
srcs.append("../rtl/axis_adapter.v")
srcs.append("../rtl/arbiter.v")
srcs.append("../rtl/priority_encoder.v")
srcs.append("%s.v" % testbench)
src = ' '.join(srcs)
build_cmd = "iverilog -o %s.vvp %s" % (testbench, src)
def bench():
# Parameters
FIFO_DEPTH = 512
SPEEDUP = 0
S_COUNT = 1
M_COUNT = 4
S_DATA_WIDTH = 256
S_KEEP_ENABLE = (S_DATA_WIDTH>8)
S_KEEP_WIDTH = (S_DATA_WIDTH/8)
M_DATA_WIDTH = 64
M_KEEP_ENABLE = (M_DATA_WIDTH>8)
M_KEEP_WIDTH = (M_DATA_WIDTH/8)
ID_ENABLE = 1
ID_WIDTH = 8
DEST_WIDTH = (M_COUNT+1-1).bit_length()
USER_ENABLE = 1
USER_WIDTH = 1
USER_BAD_FRAME_VALUE = 1
USER_BAD_FRAME_MASK = 1
DROP_BAD_FRAME = 1
DROP_WHEN_FULL = 0
M_BASE = [0, 1, 2, 3]
M_TOP = [0, 1, 2, 3]
M_CONNECT = [0b1111]*M_COUNT
ARB_TYPE_ROUND_ROBIN = 1
ARB_LSB_HIGH_PRIORITY = 1
RAM_PIPELINE = 2
# Inputs
clk = Signal(bool(0))
rst = Signal(bool(0))
current_test = Signal(intbv(0)[8:])
s_axis_tdata_list = [Signal(intbv(0)[S_DATA_WIDTH:]) for i in range(S_COUNT)]
s_axis_tkeep_list = [Signal(intbv(1)[S_KEEP_WIDTH:]) for i in range(S_COUNT)]
s_axis_tvalid_list = [Signal(bool(0)) for i in range(S_COUNT)]
s_axis_tlast_list = [Signal(bool(0)) for i in range(S_COUNT)]
s_axis_tid_list = [Signal(intbv(0)[ID_WIDTH:]) for i in range(S_COUNT)]
s_axis_tdest_list = [Signal(intbv(0)[DEST_WIDTH:]) for i in range(S_COUNT)]
s_axis_tuser_list = [Signal(intbv(0)[USER_WIDTH:]) for i in range(S_COUNT)]
# s_axis_tdata = ConcatSignal(*reversed(s_axis_tdata_list))
# s_axis_tkeep = ConcatSignal(*reversed(s_axis_tkeep_list))
# s_axis_tvalid = ConcatSignal(*reversed(s_axis_tvalid_list))
# s_axis_tlast = ConcatSignal(*reversed(s_axis_tlast_list))
# s_axis_tid = ConcatSignal(*reversed(s_axis_tid_list))
# s_axis_tdest = ConcatSignal(*reversed(s_axis_tdest_list))
# s_axis_tuser = ConcatSignal(*reversed(s_axis_tuser_list))
if S_COUNT == 1:
s_axis_tdata = s_axis_tdata_list[0]
s_axis_tkeep = s_axis_tkeep_list[0]
s_axis_tvalid = s_axis_tvalid_list[0]
s_axis_tlast = s_axis_tlast_list[0]
s_axis_tid = s_axis_tid_list[0]
s_axis_tdest = s_axis_tdest_list[0]
s_axis_tuser = s_axis_tuser_list[0]
else:
s_axis_tdata = ConcatSignal(*reversed(s_axis_tdata_list))
s_axis_tkeep = ConcatSignal(*reversed(s_axis_tkeep_list))
s_axis_tvalid = ConcatSignal(*reversed(s_axis_tvalid_list))
s_axis_tlast = ConcatSignal(*reversed(s_axis_tlast_list))
s_axis_tid = ConcatSignal(*reversed(s_axis_tid_list))
s_axis_tdest = ConcatSignal(*reversed(s_axis_tdest_list))
s_axis_tuser = ConcatSignal(*reversed(s_axis_tuser_list))
m_axis_tready_list = [Signal(bool(0)) for i in range(M_COUNT)]
# m_axis_tready = ConcatSignal(*reversed(m_axis_tready_list))
if M_COUNT == 1:
m_axis_tready = m_axis_tready_list[0]
else:
m_axis_tready = ConcatSignal(*reversed(m_axis_tready_list))
# Outputs
s_axis_tready = Signal(intbv(0)[S_COUNT:])
s_axis_tready_list = [s_axis_tready(i) for i in range(S_COUNT)]
m_axis_tdata = Signal(intbv(0)[M_COUNT*M_DATA_WIDTH:])
m_axis_tkeep = Signal(intbv(0xf)[M_COUNT*M_KEEP_WIDTH:])
m_axis_tvalid = Signal(intbv(0)[M_COUNT:])
m_axis_tlast = Signal(intbv(0)[M_COUNT:])
m_axis_tid = Signal(intbv(0)[M_COUNT*ID_WIDTH:])
m_axis_tdest = Signal(intbv(0)[M_COUNT*DEST_WIDTH:])
m_axis_tuser = Signal(intbv(0)[M_COUNT*USER_WIDTH:])
m_axis_tdata_list = [m_axis_tdata((i+1)*M_DATA_WIDTH, i*M_DATA_WIDTH) for i in range(M_COUNT)]
m_axis_tkeep_list = [m_axis_tkeep((i+1)*M_KEEP_WIDTH, i*M_KEEP_WIDTH) for i in range(M_COUNT)]
m_axis_tvalid_list = [m_axis_tvalid(i) for i in range(M_COUNT)]
m_axis_tlast_list = [m_axis_tlast(i) for i in range(M_COUNT)]
m_axis_tid_list = [m_axis_tid((i+1)*ID_WIDTH, i*ID_WIDTH) for i in range(M_COUNT)]
m_axis_tdest_list = [m_axis_tdest((i+1)*DEST_WIDTH, i*DEST_WIDTH) for i in range(M_COUNT)]
m_axis_tuser_list = [m_axis_tuser((i+1)*USER_WIDTH, i*USER_WIDTH) for i in range(M_COUNT)]
status_overflow = Signal(intbv(0)[S_COUNT:])
status_bad_frame = Signal(intbv(0)[S_COUNT:])
status_good_frame = Signal(intbv(0)[S_COUNT:])
# sources and sinks
source_pause_list = []
source_list = []
source_logic_list = []
sink_pause_list = []
sink_list = []
sink_logic_list = []
for k in range(S_COUNT):
s = axis_ep.AXIStreamSource()
p = Signal(bool(0))
source_list.append(s)
source_pause_list.append(p)
source_logic_list.append(s.create_logic(
clk,
rst,
tdata=s_axis_tdata_list[k],
tkeep=s_axis_tkeep_list[k],
tvalid=s_axis_tvalid_list[k],
tready=s_axis_tready_list[k],
tlast=s_axis_tlast_list[k],
tid=s_axis_tid_list[k],
tdest=s_axis_tdest_list[k],
tuser=s_axis_tuser_list[k],
pause=p,
name='source_%d' % k
))
for k in range(M_COUNT):
s = axis_ep.AXIStreamSink()
p = Signal(bool(0))
sink_list.append(s)
sink_pause_list.append(p)
sink_logic_list.append(s.create_logic(
clk,
rst,
tdata=m_axis_tdata_list[k],
tkeep=m_axis_tkeep_list[k],
tvalid=m_axis_tvalid_list[k],
tready=m_axis_tready_list[k],
tlast=m_axis_tlast_list[k],
tid=m_axis_tid_list[k],
tdest=m_axis_tdest_list[k],
tuser=m_axis_tuser_list[k],
pause=p,
name='sink_%d' % k
))
# DUT
if os.system(build_cmd):
raise Exception("Error running build command")
dut = Cosimulation(
"vvp -m myhdl %s.vvp -lxt2" % testbench,
clk=clk,
rst=rst,
current_test=current_test,
s_axis_tdata=s_axis_tdata,
s_axis_tkeep=s_axis_tkeep,
s_axis_tvalid=s_axis_tvalid,
s_axis_tready=s_axis_tready,
s_axis_tlast=s_axis_tlast,
s_axis_tid=s_axis_tid,
s_axis_tdest=s_axis_tdest,
s_axis_tuser=s_axis_tuser,
m_axis_tdata=m_axis_tdata,
m_axis_tkeep=m_axis_tkeep,
m_axis_tvalid=m_axis_tvalid,
m_axis_tready=m_axis_tready,
m_axis_tlast=m_axis_tlast,
m_axis_tid=m_axis_tid,
m_axis_tdest=m_axis_tdest,
m_axis_tuser=m_axis_tuser,
status_overflow=status_overflow,
status_bad_frame=status_bad_frame,
status_good_frame=status_good_frame
)
@always(delay(4))
def clkgen():
clk.next = not clk
status_overflow_latch = Signal(intbv(0)[S_COUNT:])
status_bad_frame_latch = Signal(intbv(0)[S_COUNT:])
status_good_frame_latch = Signal(intbv(0)[S_COUNT:])
@always(clk.posedge)
def monitor():
if status_overflow:
status_overflow_latch.next = status_overflow_latch | status_overflow
if status_bad_frame:
status_bad_frame_latch.next = status_bad_frame_latch | status_bad_frame
if status_good_frame:
status_good_frame_latch.next = status_good_frame_latch | status_good_frame
def wait_normal():
while s_axis_tvalid:
yield clk.posedge
def wait_pause_source():
while s_axis_tvalid:
yield clk.posedge
yield clk.posedge
for k in range(S_COUNT):
source_pause_list[k].next = False
yield clk.posedge
for k in range(S_COUNT):
source_pause_list[k].next = True
yield clk.posedge
for k in range(S_COUNT):
source_pause_list[k].next = False
def wait_pause_sink():
while s_axis_tvalid:
for k in range(M_COUNT):
sink_pause_list[k].next = True
yield clk.posedge
yield clk.posedge
yield clk.posedge
for k in range(M_COUNT):
sink_pause_list[k].next = False
yield clk.posedge
@instance
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
yield clk.posedge
print("test 1: 0000 -> 0123")
current_test.next = 1
test_frame0 = axis_ep.AXIStreamFrame(b'\x02\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x02\x00\x01\xFF'+bytearray(range(256)), id=0, dest=1)
test_frame2 = axis_ep.AXIStreamFrame(b'\x02\x00\x02\xFF'+bytearray(range(256)), id=0, dest=2)
test_frame3 = axis_ep.AXIStreamFrame(b'\x02\x00\x03\xFF'+bytearray(range(256)), id=0, dest=3)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[1].wait()
rx_frame1 = sink_list[1].recv()
assert rx_frame1 == test_frame1
yield sink_list[2].wait()
rx_frame2 = sink_list[2].recv()
assert rx_frame2 == test_frame2
yield sink_list[3].wait()
rx_frame3 = sink_list[3].recv()
assert rx_frame3 == test_frame3
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 2: 0000 -> 0000")
current_test.next = 2
test_frame0 = axis_ep.AXIStreamFrame(b'\x02\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x02\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame2 = axis_ep.AXIStreamFrame(b'\x02\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame3 = axis_ep.AXIStreamFrame(b'\x02\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[0].wait()
rx_frame1 = sink_list[0].recv()
assert rx_frame1 == test_frame1
yield sink_list[0].wait()
rx_frame2 = sink_list[0].recv()
assert rx_frame2 == test_frame2
yield sink_list[0].wait()
rx_frame3 = sink_list[0].recv()
assert rx_frame3 == test_frame3
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 3: bad decoding")
current_test.next = 3
test_frame0 = axis_ep.AXIStreamFrame(b'\x03\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x03\x00\x01\xFF'+bytearray(range(256)), id=0, dest=1)
test_frame2 = axis_ep.AXIStreamFrame(b'\x03\x00\x04\xFF'+bytearray(range(256)), id=0, dest=4)
test_frame3 = axis_ep.AXIStreamFrame(b'\x03\x00\x05\xFF'+bytearray(range(256)), id=0, dest=5)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[1].wait()
rx_frame1 = sink_list[1].recv()
assert rx_frame1 == test_frame1
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 4: tuser assert")
current_test.next = 4
test_frame0 = axis_ep.AXIStreamFrame(b'\x04\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x04\x00\x01\xFF'+bytearray(range(256)), id=0, dest=1, last_cycle_user=1)
test_frame2 = axis_ep.AXIStreamFrame(b'\x04\x00\x02\xFF'+bytearray(range(256)), id=0, dest=2)
test_frame3 = axis_ep.AXIStreamFrame(b'\x04\x00\x03\xFF'+bytearray(range(256)), id=0, dest=3)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[2].wait()
rx_frame2 = sink_list[2].recv()
assert rx_frame2 == test_frame2
yield sink_list[3].wait()
rx_frame3 = sink_list[3].recv()
assert rx_frame3 == test_frame3
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x1
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 5: single packet overflow")
current_test.next = 5
test_frame0 = axis_ep.AXIStreamFrame(b'\x05\x00\x00\xFF'+bytearray(range(256))*3, id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x05\x01\x01\xFF'+bytearray(range(256))*3, id=0, dest=1)
test_frame2 = axis_ep.AXIStreamFrame(b'\x05\x02\x02\xFF'+bytearray(range(256))*3, id=0, dest=2)
test_frame3 = axis_ep.AXIStreamFrame(b'\x05\x03\x03\xFF'+bytearray(range(256))*3, id=0, dest=3)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
yield delay(100)
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x1
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x0
yield delay(100)
yield clk.posedge
print("test 6: initial sink pause")
current_test.next = 6
test_frame0 = axis_ep.AXIStreamFrame(b'\x06\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
for k in range(M_COUNT):
sink_pause_list[k].next = True
yield clk.posedge
yield clk.posedge
while (s_axis_tvalid):
yield clk.posedge
for k in range(20):
yield clk.posedge
for k in range(M_COUNT):
sink_pause_list[k].next = False
yield wait_normal()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 7: initial sink pause, reset")
current_test.next = 7
test_frame0 = axis_ep.AXIStreamFrame(b'\x07\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
for k in range(M_COUNT):
sink_pause_list[k].next = True
yield clk.posedge
yield clk.posedge
while (s_axis_tvalid):
yield clk.posedge
for k in range(20):
yield clk.posedge
rst.next = 1
yield clk.posedge
rst.next = 0
for k in range(M_COUNT):
sink_pause_list[k].next = False
yield delay(500)
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 8: backpressure test")
current_test.next = 8
test_frame0 = axis_ep.AXIStreamFrame(b'\x08\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x08\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame2 = axis_ep.AXIStreamFrame(b'\x08\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
test_frame3 = axis_ep.AXIStreamFrame(b'\x08\x00\x00\xFF'+bytearray(range(256)), id=0, dest=0)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
for k in range(M_COUNT):
sink_pause_list[k].next = True
for k in range(100):
yield clk.posedge
for k in range(M_COUNT):
sink_pause_list[k].next = False
yield wait()
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[0].wait()
rx_frame1 = sink_list[0].recv()
assert rx_frame1 == test_frame1
yield sink_list[0].wait()
rx_frame2 = sink_list[0].recv()
assert rx_frame2 == test_frame2
yield sink_list[0].wait()
rx_frame3 = sink_list[0].recv()
assert rx_frame3 == test_frame3
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 9: many small packets, one to one")
current_test.next = 9
test_frame0 = axis_ep.AXIStreamFrame(b'\x09\x00\x00\xFF'+bytearray(range(4)), id=0, dest=0)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
for k in range(64):
source_list[0].send(test_frame0)
yield clk.posedge
yield clk.posedge
yield wait()
for k in range(64):
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
yield clk.posedge
print("test 10: many small packets, one to many")
current_test.next = 10
test_frame0 = axis_ep.AXIStreamFrame(b'\x0A\x00\x00\xFF'+bytearray(range(4)), id=0, dest=0)
test_frame1 = axis_ep.AXIStreamFrame(b'\x0A\x00\x01\xFF'+bytearray(range(4)), id=0, dest=1)
test_frame2 = axis_ep.AXIStreamFrame(b'\x0A\x00\x02\xFF'+bytearray(range(4)), id=0, dest=2)
test_frame3 = axis_ep.AXIStreamFrame(b'\x0A\x00\x03\xFF'+bytearray(range(4)), id=0, dest=3)
for wait in wait_normal, wait_pause_source, wait_pause_sink:
status_overflow_latch.next = 0
status_bad_frame_latch.next = 0
status_good_frame_latch.next = 0
for k in range(64):
source_list[0].send(test_frame0)
source_list[0].send(test_frame1)
source_list[0].send(test_frame2)
source_list[0].send(test_frame3)
yield clk.posedge
yield clk.posedge
yield wait()
for k in range(64):
yield sink_list[0].wait()
rx_frame0 = sink_list[0].recv()
assert rx_frame0 == test_frame0
yield sink_list[1].wait()
rx_frame1 = sink_list[1].recv()
assert rx_frame1 == test_frame1
yield sink_list[2].wait()
rx_frame2 = sink_list[2].recv()
assert rx_frame2 == test_frame2
yield sink_list[3].wait()
rx_frame3 = sink_list[3].recv()
assert rx_frame3 == test_frame3
assert sink_list[0].empty()
assert sink_list[1].empty()
assert sink_list[2].empty()
assert sink_list[3].empty()
assert status_overflow_latch == 0x0
assert status_bad_frame_latch == 0x0
assert status_good_frame_latch == 0x1
yield delay(100)
raise StopSimulation
return instances()
def test_bench():
sim = Simulation(bench())
sim.run()
if __name__ == '__main__':
print("Running test...")
test_bench()
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