#!/usr/bin/env python """ Copyright (c) 2014-2018 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 eth_ep import ip_ep import udp_ep module = 'udp_64' testbench = 'test_%s' % module srcs = [] srcs.append("../rtl/%s.v" % module) srcs.append("../rtl/udp_checksum_gen_64.v") srcs.append("../rtl/udp_ip_rx_64.v") srcs.append("../rtl/udp_ip_tx_64.v") srcs.append("../lib/axis/rtl/axis_fifo.v") srcs.append("%s.v" % testbench) src = ' '.join(srcs) build_cmd = "iverilog -o %s.vvp %s" % (testbench, src) def bench(): # Parameters CHECKSUM_PAYLOAD_FIFO_DEPTH = 2048 CHECKSUM_HEADER_FIFO_DEPTH = 8 # Inputs clk = Signal(bool(0)) rst = Signal(bool(0)) current_test = Signal(intbv(0)[8:]) s_ip_hdr_valid = Signal(bool(0)) s_ip_eth_dest_mac = Signal(intbv(0)[48:]) s_ip_eth_src_mac = Signal(intbv(0)[48:]) s_ip_eth_type = Signal(intbv(0)[16:]) s_ip_version = Signal(intbv(0)[4:]) s_ip_ihl = Signal(intbv(0)[4:]) s_ip_dscp = Signal(intbv(0)[6:]) s_ip_ecn = Signal(intbv(0)[2:]) s_ip_length = Signal(intbv(0)[16:]) s_ip_identification = Signal(intbv(0)[16:]) s_ip_flags = Signal(intbv(0)[3:]) s_ip_fragment_offset = Signal(intbv(0)[13:]) s_ip_ttl = Signal(intbv(0)[8:]) s_ip_protocol = Signal(intbv(0)[8:]) s_ip_header_checksum = Signal(intbv(0)[16:]) s_ip_source_ip = Signal(intbv(0)[32:]) s_ip_dest_ip = Signal(intbv(0)[32:]) s_ip_payload_axis_tdata = Signal(intbv(0)[64:]) s_ip_payload_axis_tkeep = Signal(intbv(0)[8:]) s_ip_payload_axis_tvalid = Signal(bool(0)) s_ip_payload_axis_tlast = Signal(bool(0)) s_ip_payload_axis_tuser = Signal(bool(0)) s_udp_hdr_valid = Signal(bool(0)) s_udp_eth_dest_mac = Signal(intbv(0)[48:]) s_udp_eth_src_mac = Signal(intbv(0)[48:]) s_udp_eth_type = Signal(intbv(0)[16:]) s_udp_ip_version = Signal(intbv(0)[4:]) s_udp_ip_ihl = Signal(intbv(0)[4:]) s_udp_ip_dscp = Signal(intbv(0)[6:]) s_udp_ip_ecn = Signal(intbv(0)[2:]) s_udp_ip_identification = Signal(intbv(0)[16:]) s_udp_ip_flags = Signal(intbv(0)[3:]) s_udp_ip_fragment_offset = Signal(intbv(0)[13:]) s_udp_ip_ttl = Signal(intbv(0)[8:]) s_udp_ip_header_checksum = Signal(intbv(0)[16:]) s_udp_ip_source_ip = Signal(intbv(0)[32:]) s_udp_ip_dest_ip = Signal(intbv(0)[32:]) s_udp_source_port = Signal(intbv(0)[16:]) s_udp_dest_port = Signal(intbv(0)[16:]) s_udp_length = Signal(intbv(0)[16:]) s_udp_checksum = Signal(intbv(0)[16:]) s_udp_payload_axis_tdata = Signal(intbv(0)[64:]) s_udp_payload_axis_tkeep = Signal(intbv(0)[8:]) s_udp_payload_axis_tvalid = Signal(bool(0)) s_udp_payload_axis_tlast = Signal(bool(0)) s_udp_payload_axis_tuser = Signal(bool(0)) m_ip_payload_axis_tready = Signal(bool(0)) m_ip_hdr_ready = Signal(bool(0)) m_udp_hdr_ready = Signal(bool(0)) m_udp_payload_axis_tready = Signal(bool(0)) # Outputs s_ip_hdr_ready = Signal(bool(0)) s_ip_payload_axis_tready = Signal(bool(0)) s_udp_hdr_ready = Signal(bool(0)) s_udp_payload_axis_tready = Signal(bool(0)) m_ip_hdr_valid = Signal(bool(0)) m_ip_eth_dest_mac = Signal(intbv(0)[48:]) m_ip_eth_src_mac = Signal(intbv(0)[48:]) m_ip_eth_type = Signal(intbv(0)[16:]) m_ip_version = Signal(intbv(0)[4:]) m_ip_ihl = Signal(intbv(0)[4:]) m_ip_dscp = Signal(intbv(0)[6:]) m_ip_ecn = Signal(intbv(0)[2:]) m_ip_length = Signal(intbv(0)[16:]) m_ip_identification = Signal(intbv(0)[16:]) m_ip_flags = Signal(intbv(0)[3:]) m_ip_fragment_offset = Signal(intbv(0)[13:]) m_ip_ttl = Signal(intbv(0)[8:]) m_ip_protocol = Signal(intbv(0)[8:]) m_ip_header_checksum = Signal(intbv(0)[16:]) m_ip_source_ip = Signal(intbv(0)[32:]) m_ip_dest_ip = Signal(intbv(0)[32:]) m_ip_payload_axis_tdata = Signal(intbv(0)[64:]) m_ip_payload_axis_tkeep = Signal(intbv(0)[8:]) m_ip_payload_axis_tvalid = Signal(bool(0)) m_ip_payload_axis_tlast = Signal(bool(0)) m_ip_payload_axis_tuser = Signal(bool(0)) m_udp_hdr_valid = Signal(bool(0)) m_udp_eth_dest_mac = Signal(intbv(0)[48:]) m_udp_eth_src_mac = Signal(intbv(0)[48:]) m_udp_eth_type = Signal(intbv(0)[16:]) m_udp_ip_version = Signal(intbv(0)[4:]) m_udp_ip_ihl = Signal(intbv(0)[4:]) m_udp_ip_dscp = Signal(intbv(0)[6:]) m_udp_ip_ecn = Signal(intbv(0)[2:]) m_udp_ip_length = Signal(intbv(0)[16:]) m_udp_ip_identification = Signal(intbv(0)[16:]) m_udp_ip_flags = Signal(intbv(0)[3:]) m_udp_ip_fragment_offset = Signal(intbv(0)[13:]) m_udp_ip_ttl = Signal(intbv(0)[8:]) m_udp_ip_protocol = Signal(intbv(0)[8:]) m_udp_ip_header_checksum = Signal(intbv(0)[16:]) m_udp_ip_source_ip = Signal(intbv(0)[32:]) m_udp_ip_dest_ip = Signal(intbv(0)[32:]) m_udp_source_port = Signal(intbv(0)[16:]) m_udp_dest_port = Signal(intbv(0)[16:]) m_udp_length = Signal(intbv(0)[16:]) m_udp_checksum = Signal(intbv(0)[16:]) m_udp_payload_axis_tdata = Signal(intbv(0)[64:]) m_udp_payload_axis_tkeep = Signal(intbv(0)[8:]) m_udp_payload_axis_tvalid = Signal(bool(0)) m_udp_payload_axis_tlast = Signal(bool(0)) m_udp_payload_axis_tuser = Signal(bool(0)) rx_busy = Signal(bool(0)) tx_busy = Signal(bool(0)) rx_error_header_early_termination = Signal(bool(0)) rx_error_payload_early_termination = Signal(bool(0)) tx_error_payload_early_termination = Signal(bool(0)) # sources and sinks ip_source_pause = Signal(bool(0)) ip_sink_pause = Signal(bool(0)) udp_source_pause = Signal(bool(0)) udp_sink_pause = Signal(bool(0)) ip_source = ip_ep.IPFrameSource() ip_source_logic = ip_source.create_logic( clk, rst, ip_hdr_ready=s_ip_hdr_ready, ip_hdr_valid=s_ip_hdr_valid, eth_dest_mac=s_ip_eth_dest_mac, eth_src_mac=s_ip_eth_src_mac, eth_type=s_ip_eth_type, ip_version=s_ip_version, ip_ihl=s_ip_ihl, ip_dscp=s_ip_dscp, ip_ecn=s_ip_ecn, ip_length=s_ip_length, ip_identification=s_ip_identification, ip_flags=s_ip_flags, ip_fragment_offset=s_ip_fragment_offset, ip_ttl=s_ip_ttl, ip_protocol=s_ip_protocol, ip_header_checksum=s_ip_header_checksum, ip_source_ip=s_ip_source_ip, ip_dest_ip=s_ip_dest_ip, ip_payload_tdata=s_ip_payload_axis_tdata, ip_payload_tkeep=s_ip_payload_axis_tkeep, ip_payload_tvalid=s_ip_payload_axis_tvalid, ip_payload_tready=s_ip_payload_axis_tready, ip_payload_tlast=s_ip_payload_axis_tlast, ip_payload_tuser=s_ip_payload_axis_tuser, pause=ip_source_pause, name='ip_source' ) ip_sink = ip_ep.IPFrameSink() ip_sink_logic = ip_sink.create_logic( clk, rst, ip_hdr_ready=m_ip_hdr_ready, ip_hdr_valid=m_ip_hdr_valid, eth_dest_mac=m_ip_eth_dest_mac, eth_src_mac=m_ip_eth_src_mac, eth_type=m_ip_eth_type, ip_version=m_ip_version, ip_ihl=m_ip_ihl, ip_dscp=m_ip_dscp, ip_ecn=m_ip_ecn, ip_length=m_ip_length, ip_identification=m_ip_identification, ip_flags=m_ip_flags, ip_fragment_offset=m_ip_fragment_offset, ip_ttl=m_ip_ttl, ip_protocol=m_ip_protocol, ip_header_checksum=m_ip_header_checksum, ip_source_ip=m_ip_source_ip, ip_dest_ip=m_ip_dest_ip, ip_payload_tdata=m_ip_payload_axis_tdata, ip_payload_tkeep=m_ip_payload_axis_tkeep, ip_payload_tvalid=m_ip_payload_axis_tvalid, ip_payload_tready=m_ip_payload_axis_tready, ip_payload_tlast=m_ip_payload_axis_tlast, ip_payload_tuser=m_ip_payload_axis_tuser, pause=ip_sink_pause, name='ip_sink' ) udp_source = udp_ep.UDPFrameSource() udp_source_logic = udp_source.create_logic( clk, rst, udp_hdr_ready=s_udp_hdr_ready, udp_hdr_valid=s_udp_hdr_valid, eth_dest_mac=s_udp_eth_dest_mac, eth_src_mac=s_udp_eth_src_mac, eth_type=s_udp_eth_type, ip_version=s_udp_ip_version, ip_ihl=s_udp_ip_ihl, ip_dscp=s_udp_ip_dscp, ip_ecn=s_udp_ip_ecn, ip_identification=s_udp_ip_identification, ip_flags=s_udp_ip_flags, ip_fragment_offset=s_udp_ip_fragment_offset, ip_ttl=s_udp_ip_ttl, ip_header_checksum=s_udp_ip_header_checksum, ip_source_ip=s_udp_ip_source_ip, ip_dest_ip=s_udp_ip_dest_ip, udp_source_port=s_udp_source_port, udp_dest_port=s_udp_dest_port, udp_length=s_udp_length, udp_checksum=s_udp_checksum, udp_payload_tdata=s_udp_payload_axis_tdata, udp_payload_tkeep=s_udp_payload_axis_tkeep, udp_payload_tvalid=s_udp_payload_axis_tvalid, udp_payload_tready=s_udp_payload_axis_tready, udp_payload_tlast=s_udp_payload_axis_tlast, udp_payload_tuser=s_udp_payload_axis_tuser, pause=udp_source_pause, name='udp_source' ) udp_sink = udp_ep.UDPFrameSink() udp_sink_logic = udp_sink.create_logic( clk, rst, udp_hdr_ready=m_udp_hdr_ready, udp_hdr_valid=m_udp_hdr_valid, eth_dest_mac=m_udp_eth_dest_mac, eth_src_mac=m_udp_eth_src_mac, eth_type=m_udp_eth_type, ip_version=m_udp_ip_version, ip_ihl=m_udp_ip_ihl, ip_dscp=m_udp_ip_dscp, ip_ecn=m_udp_ip_ecn, ip_length=m_udp_ip_length, ip_identification=m_udp_ip_identification, ip_flags=m_udp_ip_flags, ip_fragment_offset=m_udp_ip_fragment_offset, ip_ttl=m_udp_ip_ttl, ip_protocol=m_udp_ip_protocol, ip_header_checksum=m_udp_ip_header_checksum, ip_source_ip=m_udp_ip_source_ip, ip_dest_ip=m_udp_ip_dest_ip, udp_source_port=m_udp_source_port, udp_dest_port=m_udp_dest_port, udp_length=m_udp_length, udp_checksum=m_udp_checksum, udp_payload_tdata=m_udp_payload_axis_tdata, udp_payload_tkeep=m_udp_payload_axis_tkeep, udp_payload_tvalid=m_udp_payload_axis_tvalid, udp_payload_tready=m_udp_payload_axis_tready, udp_payload_tlast=m_udp_payload_axis_tlast, udp_payload_tuser=m_udp_payload_axis_tuser, pause=udp_sink_pause, name='udp_sink' ) # 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_ip_hdr_valid=s_ip_hdr_valid, s_ip_hdr_ready=s_ip_hdr_ready, s_ip_eth_dest_mac=s_ip_eth_dest_mac, s_ip_eth_src_mac=s_ip_eth_src_mac, s_ip_eth_type=s_ip_eth_type, s_ip_version=s_ip_version, s_ip_ihl=s_ip_ihl, s_ip_dscp=s_ip_dscp, s_ip_ecn=s_ip_ecn, s_ip_length=s_ip_length, s_ip_identification=s_ip_identification, s_ip_flags=s_ip_flags, s_ip_fragment_offset=s_ip_fragment_offset, s_ip_ttl=s_ip_ttl, s_ip_protocol=s_ip_protocol, s_ip_header_checksum=s_ip_header_checksum, s_ip_source_ip=s_ip_source_ip, s_ip_dest_ip=s_ip_dest_ip, s_ip_payload_axis_tdata=s_ip_payload_axis_tdata, s_ip_payload_axis_tkeep=s_ip_payload_axis_tkeep, s_ip_payload_axis_tvalid=s_ip_payload_axis_tvalid, s_ip_payload_axis_tready=s_ip_payload_axis_tready, s_ip_payload_axis_tlast=s_ip_payload_axis_tlast, s_ip_payload_axis_tuser=s_ip_payload_axis_tuser, m_ip_hdr_valid=m_ip_hdr_valid, m_ip_hdr_ready=m_ip_hdr_ready, m_ip_eth_dest_mac=m_ip_eth_dest_mac, m_ip_eth_src_mac=m_ip_eth_src_mac, m_ip_eth_type=m_ip_eth_type, m_ip_version=m_ip_version, m_ip_ihl=m_ip_ihl, m_ip_dscp=m_ip_dscp, m_ip_ecn=m_ip_ecn, m_ip_length=m_ip_length, m_ip_identification=m_ip_identification, m_ip_flags=m_ip_flags, m_ip_fragment_offset=m_ip_fragment_offset, m_ip_ttl=m_ip_ttl, m_ip_protocol=m_ip_protocol, m_ip_header_checksum=m_ip_header_checksum, m_ip_source_ip=m_ip_source_ip, m_ip_dest_ip=m_ip_dest_ip, m_ip_payload_axis_tdata=m_ip_payload_axis_tdata, m_ip_payload_axis_tkeep=m_ip_payload_axis_tkeep, m_ip_payload_axis_tvalid=m_ip_payload_axis_tvalid, m_ip_payload_axis_tready=m_ip_payload_axis_tready, m_ip_payload_axis_tlast=m_ip_payload_axis_tlast, m_ip_payload_axis_tuser=m_ip_payload_axis_tuser, s_udp_hdr_valid=s_udp_hdr_valid, s_udp_hdr_ready=s_udp_hdr_ready, s_udp_eth_dest_mac=s_udp_eth_dest_mac, s_udp_eth_src_mac=s_udp_eth_src_mac, s_udp_eth_type=s_udp_eth_type, s_udp_ip_version=s_udp_ip_version, s_udp_ip_ihl=s_udp_ip_ihl, s_udp_ip_dscp=s_udp_ip_dscp, s_udp_ip_ecn=s_udp_ip_ecn, s_udp_ip_identification=s_udp_ip_identification, s_udp_ip_flags=s_udp_ip_flags, s_udp_ip_fragment_offset=s_udp_ip_fragment_offset, s_udp_ip_ttl=s_udp_ip_ttl, s_udp_ip_header_checksum=s_udp_ip_header_checksum, s_udp_ip_source_ip=s_udp_ip_source_ip, s_udp_ip_dest_ip=s_udp_ip_dest_ip, s_udp_source_port=s_udp_source_port, s_udp_dest_port=s_udp_dest_port, s_udp_length=s_udp_length, s_udp_checksum=s_udp_checksum, s_udp_payload_axis_tdata=s_udp_payload_axis_tdata, s_udp_payload_axis_tkeep=s_udp_payload_axis_tkeep, s_udp_payload_axis_tvalid=s_udp_payload_axis_tvalid, s_udp_payload_axis_tready=s_udp_payload_axis_tready, s_udp_payload_axis_tlast=s_udp_payload_axis_tlast, s_udp_payload_axis_tuser=s_udp_payload_axis_tuser, m_udp_hdr_valid=m_udp_hdr_valid, m_udp_hdr_ready=m_udp_hdr_ready, m_udp_eth_dest_mac=m_udp_eth_dest_mac, m_udp_eth_src_mac=m_udp_eth_src_mac, m_udp_eth_type=m_udp_eth_type, m_udp_ip_version=m_udp_ip_version, m_udp_ip_ihl=m_udp_ip_ihl, m_udp_ip_dscp=m_udp_ip_dscp, m_udp_ip_ecn=m_udp_ip_ecn, m_udp_ip_length=m_udp_ip_length, m_udp_ip_identification=m_udp_ip_identification, m_udp_ip_flags=m_udp_ip_flags, m_udp_ip_fragment_offset=m_udp_ip_fragment_offset, m_udp_ip_ttl=m_udp_ip_ttl, m_udp_ip_protocol=m_udp_ip_protocol, m_udp_ip_header_checksum=m_udp_ip_header_checksum, m_udp_ip_source_ip=m_udp_ip_source_ip, m_udp_ip_dest_ip=m_udp_ip_dest_ip, m_udp_source_port=m_udp_source_port, m_udp_dest_port=m_udp_dest_port, m_udp_length=m_udp_length, m_udp_checksum=m_udp_checksum, m_udp_payload_axis_tdata=m_udp_payload_axis_tdata, m_udp_payload_axis_tkeep=m_udp_payload_axis_tkeep, m_udp_payload_axis_tvalid=m_udp_payload_axis_tvalid, m_udp_payload_axis_tready=m_udp_payload_axis_tready, m_udp_payload_axis_tlast=m_udp_payload_axis_tlast, m_udp_payload_axis_tuser=m_udp_payload_axis_tuser, rx_busy=rx_busy, tx_busy=tx_busy, rx_error_header_early_termination=rx_error_header_early_termination, rx_error_payload_early_termination=rx_error_payload_early_termination, tx_error_payload_early_termination=tx_error_payload_early_termination ) @always(delay(4)) def clkgen(): clk.next = not clk rx_error_header_early_termination_asserted = Signal(bool(0)) rx_error_payload_early_termination_asserted = Signal(bool(0)) tx_error_payload_early_termination_asserted = Signal(bool(0)) @always(clk.posedge) def monitor(): if (rx_error_header_early_termination): rx_error_header_early_termination_asserted.next = 1 if (rx_error_payload_early_termination): rx_error_payload_early_termination_asserted.next = 1 if (tx_error_payload_early_termination): tx_error_payload_early_termination_asserted.next = 1 @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 yield clk.posedge print("test 1: test UDP RX packet") current_test.next = 1 test_frame = udp_ep.UDPFrame() test_frame.eth_dest_mac = 0x5A5152535455 test_frame.eth_src_mac = 0xDAD1D2D3D4D5 test_frame.eth_type = 0x0800 test_frame.ip_version = 4 test_frame.ip_ihl = 5 test_frame.ip_dscp = 0 test_frame.ip_ecn = 0 test_frame.ip_length = None test_frame.ip_identification = 0 test_frame.ip_flags = 2 test_frame.ip_fragment_offset = 0 test_frame.ip_ttl = 64 test_frame.ip_protocol = 0x11 test_frame.ip_header_checksum = None test_frame.ip_source_ip = 0xc0a80165 test_frame.ip_dest_ip = 0xc0a80164 test_frame.udp_source_port = 1234 test_frame.udp_dest_port = 5678 test_frame.payload = bytearray(range(32)) test_frame.build() ip_frame = test_frame.build_ip() ip_source.send(ip_frame) yield udp_sink.wait() rx_frame = udp_sink.recv() assert rx_frame == test_frame assert ip_source.empty() assert ip_sink.empty() assert udp_source.empty() assert udp_sink.empty() yield delay(100) yield clk.posedge print("test 2: test UDP TX packet") current_test.next = 2 test_frame = udp_ep.UDPFrame() test_frame.eth_dest_mac = 0x5A5152535455 test_frame.eth_src_mac = 0xDAD1D2D3D4D5 test_frame.eth_type = 0x0800 test_frame.ip_version = 4 test_frame.ip_ihl = 5 test_frame.ip_dscp = 0 test_frame.ip_ecn = 0 test_frame.ip_length = None test_frame.ip_identification = 0 test_frame.ip_flags = 2 test_frame.ip_fragment_offset = 0 test_frame.ip_ttl = 64 test_frame.ip_protocol = 0x11 test_frame.ip_header_checksum = None test_frame.ip_source_ip = 0xc0a80165 test_frame.ip_dest_ip = 0xc0a80164 test_frame.udp_source_port = 1234 test_frame.udp_dest_port = 5678 test_frame.payload = bytearray(range(32)) test_frame.build() udp_source.send(test_frame) yield ip_sink.wait() rx_frame = ip_sink.recv() check_frame = udp_ep.UDPFrame() check_frame.parse_ip(rx_frame) assert check_frame == test_frame assert ip_source.empty() assert ip_sink.empty() assert udp_source.empty() assert udp_sink.empty() yield delay(100) raise StopSimulation return instances() def test_bench(): sim = Simulation(bench()) sim.run() if __name__ == '__main__': print("Running test...") test_bench()