#!/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 arp_ep import ip_ep import udp_ep module = 'udp_complete_64' testbench = 'test_%s' % module srcs = [] srcs.append("../rtl/%s.v" % module) srcs.append("../rtl/udp_64.v") 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("../rtl/ip_complete_64.v") srcs.append("../rtl/ip_64.v") srcs.append("../rtl/ip_eth_rx_64.v") srcs.append("../rtl/ip_eth_tx_64.v") srcs.append("../rtl/ip_arb_mux.v") srcs.append("../rtl/arp_64.v") srcs.append("../rtl/arp_cache.v") srcs.append("../rtl/arp_eth_rx_64.v") srcs.append("../rtl/arp_eth_tx_64.v") srcs.append("../rtl/eth_arb_mux.v") srcs.append("../rtl/lfsr.v") srcs.append("../lib/axis/rtl/arbiter.v") srcs.append("../lib/axis/rtl/priority_encoder.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 ARP_CACHE_ADDR_WIDTH = 2 ARP_REQUEST_RETRY_COUNT = 4 ARP_REQUEST_RETRY_INTERVAL = 150 ARP_REQUEST_TIMEOUT = 400 UDP_CHECKSUM_GEN_ENABLE = 1 UDP_CHECKSUM_PAYLOAD_FIFO_DEPTH = 2048 UDP_CHECKSUM_HEADER_FIFO_DEPTH = 8 # Inputs clk = Signal(bool(0)) rst = Signal(bool(0)) current_test = Signal(intbv(0)[8:]) s_eth_hdr_valid = Signal(bool(0)) s_eth_dest_mac = Signal(intbv(0)[48:]) s_eth_src_mac = Signal(intbv(0)[48:]) s_eth_type = Signal(intbv(0)[16:]) s_eth_payload_axis_tdata = Signal(intbv(0)[64:]) s_eth_payload_axis_tkeep = Signal(intbv(0)[8:]) s_eth_payload_axis_tvalid = Signal(bool(0)) s_eth_payload_axis_tlast = Signal(bool(0)) s_eth_payload_axis_tuser = Signal(bool(0)) s_ip_hdr_valid = Signal(bool(0)) s_ip_dscp = Signal(intbv(0)[6:]) s_ip_ecn = Signal(intbv(0)[2:]) s_ip_length = Signal(intbv(0)[16:]) s_ip_ttl = Signal(intbv(0)[8:]) s_ip_protocol = Signal(intbv(0)[8:]) 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_ip_dscp = Signal(intbv(0)[6:]) s_udp_ip_ecn = Signal(intbv(0)[2:]) s_udp_ip_ttl = Signal(intbv(0)[8:]) 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_eth_payload_axis_tready = Signal(bool(0)) m_eth_hdr_ready = Signal(bool(0)) m_ip_hdr_ready = Signal(bool(0)) m_ip_payload_axis_tready = Signal(bool(0)) m_udp_hdr_ready = Signal(bool(0)) m_udp_payload_axis_tready = Signal(bool(0)) # Outputs s_eth_hdr_ready = Signal(bool(0)) s_eth_payload_axis_tready = Signal(bool(0)) 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_eth_hdr_valid = Signal(bool(0)) m_eth_dest_mac = Signal(intbv(0)[48:]) m_eth_src_mac = Signal(intbv(0)[48:]) m_eth_type = Signal(intbv(0)[16:]) m_eth_payload_axis_tdata = Signal(intbv(0)[64:]) m_eth_payload_axis_tkeep = Signal(intbv(0)[8:]) m_eth_payload_axis_tvalid = Signal(bool(0)) m_eth_payload_axis_tlast = Signal(bool(0)) m_eth_payload_axis_tuser = 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)) ip_rx_busy = Signal(bool(0)) ip_tx_busy = Signal(bool(0)) udp_rx_busy = Signal(bool(0)) udp_tx_busy = Signal(bool(0)) ip_rx_error_header_early_termination = Signal(bool(0)) ip_rx_error_payload_early_termination = Signal(bool(0)) ip_rx_error_invalid_header = Signal(bool(0)) ip_rx_error_invalid_checksum = Signal(bool(0)) ip_tx_error_payload_early_termination = Signal(bool(0)) ip_tx_error_arp_failed = Signal(bool(0)) udp_rx_error_header_early_termination = Signal(bool(0)) udp_rx_error_payload_early_termination = Signal(bool(0)) udp_tx_error_payload_early_termination = Signal(bool(0)) local_mac = Signal(intbv(0)[48:]) local_ip = Signal(intbv(0)[32:]) gateway_ip = Signal(intbv(0)[32:]) subnet_mask = Signal(intbv(0)[32:]) clear_arp_cache = Signal(bool(0)) # sources and sinks eth_source_pause = Signal(bool(0)) eth_sink_pause = Signal(bool(0)) ip_source_pause = Signal(bool(0)) ip_sink_pause = Signal(bool(0)) udp_source_pause = Signal(bool(0)) udp_sink_pause = Signal(bool(0)) eth_source = eth_ep.EthFrameSource() eth_source_logic = eth_source.create_logic( clk, rst, eth_hdr_ready=s_eth_hdr_ready, eth_hdr_valid=s_eth_hdr_valid, eth_dest_mac=s_eth_dest_mac, eth_src_mac=s_eth_src_mac, eth_type=s_eth_type, eth_payload_tdata=s_eth_payload_axis_tdata, eth_payload_tkeep=s_eth_payload_axis_tkeep, eth_payload_tvalid=s_eth_payload_axis_tvalid, eth_payload_tready=s_eth_payload_axis_tready, eth_payload_tlast=s_eth_payload_axis_tlast, eth_payload_tuser=s_eth_payload_axis_tuser, pause=eth_source_pause, name='eth_source' ) eth_sink = eth_ep.EthFrameSink() eth_sink_logic = eth_sink.create_logic( clk, rst, eth_hdr_ready=m_eth_hdr_ready, eth_hdr_valid=m_eth_hdr_valid, eth_dest_mac=m_eth_dest_mac, eth_src_mac=m_eth_src_mac, eth_type=m_eth_type, eth_payload_tdata=m_eth_payload_axis_tdata, eth_payload_tkeep=m_eth_payload_axis_tkeep, eth_payload_tvalid=m_eth_payload_axis_tvalid, eth_payload_tready=m_eth_payload_axis_tready, eth_payload_tlast=m_eth_payload_axis_tlast, eth_payload_tuser=m_eth_payload_axis_tuser, pause=eth_sink_pause, name='eth_sink' ) ip_source = ip_ep.IPFrameSource() ip_source_logic = ip_source.create_logic( clk, rst, ip_hdr_valid=s_ip_hdr_valid, ip_hdr_ready=s_ip_hdr_ready, ip_dscp=s_ip_dscp, ip_ecn=s_ip_ecn, ip_length=s_ip_length, ip_ttl=s_ip_ttl, ip_protocol=s_ip_protocol, 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, ip_dscp=s_udp_ip_dscp, ip_ecn=s_udp_ip_ecn, ip_ttl=s_udp_ip_ttl, 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_eth_hdr_valid=s_eth_hdr_valid, s_eth_hdr_ready=s_eth_hdr_ready, s_eth_dest_mac=s_eth_dest_mac, s_eth_src_mac=s_eth_src_mac, s_eth_type=s_eth_type, s_eth_payload_axis_tdata=s_eth_payload_axis_tdata, s_eth_payload_axis_tkeep=s_eth_payload_axis_tkeep, s_eth_payload_axis_tvalid=s_eth_payload_axis_tvalid, s_eth_payload_axis_tready=s_eth_payload_axis_tready, s_eth_payload_axis_tlast=s_eth_payload_axis_tlast, s_eth_payload_axis_tuser=s_eth_payload_axis_tuser, m_eth_hdr_valid=m_eth_hdr_valid, m_eth_hdr_ready=m_eth_hdr_ready, m_eth_dest_mac=m_eth_dest_mac, m_eth_src_mac=m_eth_src_mac, m_eth_type=m_eth_type, m_eth_payload_axis_tdata=m_eth_payload_axis_tdata, m_eth_payload_axis_tkeep=m_eth_payload_axis_tkeep, m_eth_payload_axis_tvalid=m_eth_payload_axis_tvalid, m_eth_payload_axis_tready=m_eth_payload_axis_tready, m_eth_payload_axis_tlast=m_eth_payload_axis_tlast, m_eth_payload_axis_tuser=m_eth_payload_axis_tuser, s_ip_hdr_valid=s_ip_hdr_valid, s_ip_hdr_ready=s_ip_hdr_ready, s_ip_dscp=s_ip_dscp, s_ip_ecn=s_ip_ecn, s_ip_length=s_ip_length, s_ip_ttl=s_ip_ttl, s_ip_protocol=s_ip_protocol, 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_ip_dscp=s_udp_ip_dscp, s_udp_ip_ecn=s_udp_ip_ecn, s_udp_ip_ttl=s_udp_ip_ttl, 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, ip_rx_busy=ip_rx_busy, ip_tx_busy=ip_tx_busy, udp_rx_busy=udp_rx_busy, udp_tx_busy=udp_tx_busy, ip_rx_error_header_early_termination=ip_rx_error_header_early_termination, ip_rx_error_payload_early_termination=ip_rx_error_payload_early_termination, ip_rx_error_invalid_header=ip_rx_error_invalid_header, ip_rx_error_invalid_checksum=ip_rx_error_invalid_checksum, ip_tx_error_payload_early_termination=ip_tx_error_payload_early_termination, ip_tx_error_arp_failed=ip_tx_error_arp_failed, udp_rx_error_header_early_termination=udp_rx_error_header_early_termination, udp_rx_error_payload_early_termination=udp_rx_error_payload_early_termination, udp_tx_error_payload_early_termination=udp_tx_error_payload_early_termination, local_mac=local_mac, local_ip=local_ip, gateway_ip=gateway_ip, subnet_mask=subnet_mask, clear_arp_cache=clear_arp_cache ) @always(delay(4)) def clkgen(): clk.next = not clk ip_rx_error_header_early_termination_asserted = Signal(bool(0)) ip_rx_error_payload_early_termination_asserted = Signal(bool(0)) ip_rx_error_invalid_header_asserted = Signal(bool(0)) ip_rx_error_invalid_checksum_asserted = Signal(bool(0)) ip_tx_error_payload_early_termination_asserted = Signal(bool(0)) ip_tx_error_arp_failed_asserted = Signal(bool(0)) udp_rx_error_header_early_termination_asserted = Signal(bool(0)) udp_rx_error_payload_early_termination_asserted = Signal(bool(0)) udp_tx_error_payload_early_termination_asserted = Signal(bool(0)) @always(clk.posedge) def monitor(): if (ip_rx_error_header_early_termination): ip_rx_error_header_early_termination_asserted.next = 1 if (ip_rx_error_payload_early_termination): ip_rx_error_payload_early_termination_asserted.next = 1 if (ip_rx_error_invalid_header): ip_rx_error_invalid_header_asserted.next = 1 if (ip_rx_error_invalid_checksum): ip_rx_error_invalid_checksum_asserted.next = 1 if (ip_tx_error_payload_early_termination): ip_tx_error_payload_early_termination_asserted.next = 1 if (ip_tx_error_arp_failed): ip_tx_error_arp_failed_asserted.next = 1 if (udp_rx_error_header_early_termination): udp_rx_error_header_early_termination_asserted.next = 1 if (udp_rx_error_payload_early_termination): udp_rx_error_payload_early_termination_asserted.next = 1 if (udp_tx_error_payload_early_termination): udp_tx_error_payload_early_termination_asserted.next = 1 def wait_normal(): i = 20 while i > 0: i = max(0, i-1) if (s_eth_payload_axis_tvalid or s_ip_payload_axis_tvalid or s_udp_payload_axis_tvalid or m_eth_payload_axis_tvalid or m_ip_payload_axis_tvalid or m_udp_payload_axis_tvalid or s_eth_hdr_valid or s_ip_hdr_valid or s_udp_hdr_valid): i = 20 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 # set MAC and IP address local_mac.next = 0x5A5152535455 local_ip.next = 0xc0a80164 gateway_ip.next = 0xc0a80101 subnet_mask.next = 0xffffff00 yield clk.posedge print("test 1: test IP RX packet") current_test.next = 1 test_frame = ip_ep.IPFrame() 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 = 0x10 test_frame.ip_header_checksum = None test_frame.ip_source_ip = 0xc0a80165 test_frame.ip_dest_ip = 0xc0a80164 test_frame.payload = bytearray(range(32)) test_frame.build() eth_frame = test_frame.build_eth() eth_source.send(eth_frame) yield ip_sink.wait() rx_frame = ip_sink.recv() assert rx_frame == test_frame assert eth_source.empty() assert eth_sink.empty() assert ip_source.empty() assert ip_sink.empty() yield delay(100) yield clk.posedge print("test 2: test IP TX packet") current_test.next = 2 # send IP packet test_frame = ip_ep.IPFrame() test_frame.eth_dest_mac = 0xDAD1D2D3D4D5 test_frame.eth_src_mac = 0x5A5152535455 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 = 0x10 test_frame.ip_header_checksum = None test_frame.ip_source_ip = 0xc0a80164 test_frame.ip_dest_ip = 0xc0a80166 test_frame.payload = bytearray(range(32)) test_frame.build() ip_source.send(test_frame) # wait for ARP request packet yield eth_sink.wait() rx_frame = eth_sink.recv() check_frame = arp_ep.ARPFrame() check_frame.parse_eth(rx_frame) assert check_frame.eth_dest_mac == 0xFFFFFFFFFFFF assert check_frame.eth_src_mac == 0x5A5152535455 assert check_frame.eth_type == 0x0806 assert check_frame.arp_htype == 0x0001 assert check_frame.arp_ptype == 0x0800 assert check_frame.arp_hlen == 6 assert check_frame.arp_plen == 4 assert check_frame.arp_oper == 1 assert check_frame.arp_sha == 0x5A5152535455 assert check_frame.arp_spa == 0xc0a80164 assert check_frame.arp_tha == 0x000000000000 assert check_frame.arp_tpa == 0xc0a80166 # generate response arp_frame = arp_ep.ARPFrame() arp_frame.eth_dest_mac = 0x5A5152535455 arp_frame.eth_src_mac = 0xDAD1D2D3D4D5 arp_frame.eth_type = 0x0806 arp_frame.arp_htype = 0x0001 arp_frame.arp_ptype = 0x0800 arp_frame.arp_hlen = 6 arp_frame.arp_plen = 4 arp_frame.arp_oper = 2 arp_frame.arp_sha = 0xDAD1D2D3D4D5 arp_frame.arp_spa = 0xc0a80166 arp_frame.arp_tha = 0x5A5152535455 arp_frame.arp_tpa = 0xc0a80164 eth_source.send(arp_frame.build_eth()) yield eth_sink.wait() rx_frame = eth_sink.recv() check_frame = ip_ep.IPFrame() check_frame.parse_eth(rx_frame) print(test_frame) print(check_frame) assert check_frame == test_frame assert eth_source.empty() assert eth_sink.empty() assert ip_source.empty() assert ip_sink.empty() yield delay(100) yield clk.posedge print("test 3: test IP TX arp fail packet") current_test.next = 2 ip_tx_error_arp_failed_asserted.next = 0 test_frame = ip_ep.IPFrame() test_frame.eth_dest_mac = 0xDAD1D2D3D4D5 test_frame.eth_src_mac = 0x5A5152535455 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 = 0x10 test_frame.ip_header_checksum = None test_frame.ip_source_ip = 0xc0a80164 test_frame.ip_dest_ip = 0xc0a80167 test_frame.payload = bytearray(range(32)) test_frame.build() ip_source.send(test_frame) yield clk.posedge yield clk.posedge yield wait_normal() yield clk.posedge yield clk.posedge assert ip_tx_error_arp_failed_asserted # check for 4 ARP requests assert eth_sink.count() == 4 while not eth_sink.empty(): rx_frame = eth_sink.recv() check_frame = arp_ep.ARPFrame() check_frame.parse_eth(rx_frame) assert check_frame.eth_dest_mac == 0xFFFFFFFFFFFF assert check_frame.eth_src_mac == 0x5A5152535455 assert check_frame.eth_type == 0x0806 assert check_frame.arp_htype == 0x0001 assert check_frame.arp_ptype == 0x0800 assert check_frame.arp_hlen == 6 assert check_frame.arp_plen == 4 assert check_frame.arp_oper == 1 assert check_frame.arp_sha == 0x5A5152535455 assert check_frame.arp_spa == 0xc0a80164 assert check_frame.arp_tha == 0x000000000000 assert check_frame.arp_tpa == 0xc0a80167 assert eth_source.empty() assert eth_sink.empty() assert ip_source.empty() assert ip_sink.empty() yield delay(100) yield clk.posedge print("test 4: test UDP RX packet") current_test.next = 4 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() eth_frame = test_frame.build_eth() eth_source.send(eth_frame) yield udp_sink.wait() rx_frame = udp_sink.recv() assert rx_frame == test_frame assert eth_source.empty() assert eth_sink.empty() assert udp_source.empty() assert udp_sink.empty() yield delay(100) yield clk.posedge print("test 5: test UDP TX packet") current_test.next = 5 test_frame = udp_ep.UDPFrame() test_frame.eth_dest_mac = 0xDAD1D2D3D4D5 test_frame.eth_src_mac = 0x5A5152535455 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 = 0xc0a80164 test_frame.ip_dest_ip = 0xc0a80166 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 eth_sink.wait() rx_frame = eth_sink.recv() check_frame = udp_ep.UDPFrame() check_frame.parse_eth(rx_frame) assert check_frame == test_frame assert eth_source.empty() assert eth_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()