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414 lines
16 KiB
Verilog
414 lines
16 KiB
Verilog
/*
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Copyright (c) 2014-2016 Alex Forencich
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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// Language: Verilog 2001
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`timescale 1ns / 1ps
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/*
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* UDP block, IP interface
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*/
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module udp #
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(
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parameter CHECKSUM_ENABLE = 1,
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parameter CHECKSUM_PAYLOAD_FIFO_ADDR_WIDTH = 11,
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parameter CHECKSUM_HEADER_FIFO_ADDR_WIDTH = 3
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)
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(
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input wire clk,
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input wire rst,
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/*
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* IP frame input
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*/
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input wire input_ip_hdr_valid,
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output wire input_ip_hdr_ready,
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input wire [47:0] input_ip_eth_dest_mac,
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input wire [47:0] input_ip_eth_src_mac,
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input wire [15:0] input_ip_eth_type,
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input wire [3:0] input_ip_version,
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input wire [3:0] input_ip_ihl,
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input wire [5:0] input_ip_dscp,
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input wire [1:0] input_ip_ecn,
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input wire [15:0] input_ip_length,
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input wire [15:0] input_ip_identification,
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input wire [2:0] input_ip_flags,
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input wire [12:0] input_ip_fragment_offset,
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input wire [7:0] input_ip_ttl,
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input wire [7:0] input_ip_protocol,
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input wire [15:0] input_ip_header_checksum,
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input wire [31:0] input_ip_source_ip,
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input wire [31:0] input_ip_dest_ip,
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input wire [7:0] input_ip_payload_tdata,
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input wire input_ip_payload_tvalid,
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output wire input_ip_payload_tready,
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input wire input_ip_payload_tlast,
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input wire input_ip_payload_tuser,
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/*
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* IP frame output
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*/
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output wire output_ip_hdr_valid,
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input wire output_ip_hdr_ready,
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output wire [47:0] output_ip_eth_dest_mac,
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output wire [47:0] output_ip_eth_src_mac,
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output wire [15:0] output_ip_eth_type,
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output wire [3:0] output_ip_version,
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output wire [3:0] output_ip_ihl,
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output wire [5:0] output_ip_dscp,
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output wire [1:0] output_ip_ecn,
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output wire [15:0] output_ip_length,
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output wire [15:0] output_ip_identification,
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output wire [2:0] output_ip_flags,
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output wire [12:0] output_ip_fragment_offset,
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output wire [7:0] output_ip_ttl,
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output wire [7:0] output_ip_protocol,
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output wire [15:0] output_ip_header_checksum,
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output wire [31:0] output_ip_source_ip,
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output wire [31:0] output_ip_dest_ip,
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output wire [7:0] output_ip_payload_tdata,
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output wire output_ip_payload_tvalid,
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input wire output_ip_payload_tready,
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output wire output_ip_payload_tlast,
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output wire output_ip_payload_tuser,
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/*
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* UDP frame input
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*/
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input wire input_udp_hdr_valid,
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output wire input_udp_hdr_ready,
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input wire [47:0] input_udp_eth_dest_mac,
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input wire [47:0] input_udp_eth_src_mac,
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input wire [15:0] input_udp_eth_type,
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input wire [3:0] input_udp_ip_version,
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input wire [3:0] input_udp_ip_ihl,
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input wire [5:0] input_udp_ip_dscp,
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input wire [1:0] input_udp_ip_ecn,
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input wire [15:0] input_udp_ip_identification,
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input wire [2:0] input_udp_ip_flags,
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input wire [12:0] input_udp_ip_fragment_offset,
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input wire [7:0] input_udp_ip_ttl,
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input wire [15:0] input_udp_ip_header_checksum,
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input wire [31:0] input_udp_ip_source_ip,
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input wire [31:0] input_udp_ip_dest_ip,
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input wire [15:0] input_udp_source_port,
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input wire [15:0] input_udp_dest_port,
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input wire [15:0] input_udp_length,
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input wire [15:0] input_udp_checksum,
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input wire [7:0] input_udp_payload_tdata,
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input wire input_udp_payload_tvalid,
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output wire input_udp_payload_tready,
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input wire input_udp_payload_tlast,
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input wire input_udp_payload_tuser,
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/*
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* UDP frame output
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*/
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output wire output_udp_hdr_valid,
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input wire output_udp_hdr_ready,
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output wire [47:0] output_udp_eth_dest_mac,
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output wire [47:0] output_udp_eth_src_mac,
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output wire [15:0] output_udp_eth_type,
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output wire [3:0] output_udp_ip_version,
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output wire [3:0] output_udp_ip_ihl,
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output wire [5:0] output_udp_ip_dscp,
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output wire [1:0] output_udp_ip_ecn,
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output wire [15:0] output_udp_ip_length,
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output wire [15:0] output_udp_ip_identification,
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output wire [2:0] output_udp_ip_flags,
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output wire [12:0] output_udp_ip_fragment_offset,
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output wire [7:0] output_udp_ip_ttl,
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output wire [7:0] output_udp_ip_protocol,
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output wire [15:0] output_udp_ip_header_checksum,
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output wire [31:0] output_udp_ip_source_ip,
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output wire [31:0] output_udp_ip_dest_ip,
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output wire [15:0] output_udp_source_port,
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output wire [15:0] output_udp_dest_port,
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output wire [15:0] output_udp_length,
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output wire [15:0] output_udp_checksum,
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output wire [7:0] output_udp_payload_tdata,
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output wire output_udp_payload_tvalid,
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input wire output_udp_payload_tready,
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output wire output_udp_payload_tlast,
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output wire output_udp_payload_tuser,
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/*
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* Status signals
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*/
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output wire rx_busy,
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output wire tx_busy,
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output wire rx_error_header_early_termination,
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output wire rx_error_payload_early_termination,
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output wire tx_error_payload_early_termination
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);
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wire tx_udp_hdr_valid;
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wire tx_udp_hdr_ready;
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wire [47:0] tx_udp_eth_dest_mac;
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wire [47:0] tx_udp_eth_src_mac;
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wire [15:0] tx_udp_eth_type;
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wire [3:0] tx_udp_ip_version;
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wire [3:0] tx_udp_ip_ihl;
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wire [5:0] tx_udp_ip_dscp;
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wire [1:0] tx_udp_ip_ecn;
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wire [15:0] tx_udp_ip_identification;
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wire [2:0] tx_udp_ip_flags;
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wire [12:0] tx_udp_ip_fragment_offset;
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wire [7:0] tx_udp_ip_ttl;
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wire [15:0] tx_udp_ip_header_checksum;
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wire [31:0] tx_udp_ip_source_ip;
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wire [31:0] tx_udp_ip_dest_ip;
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wire [15:0] tx_udp_source_port;
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wire [15:0] tx_udp_dest_port;
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wire [15:0] tx_udp_length;
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wire [15:0] tx_udp_checksum;
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wire [7:0] tx_udp_payload_tdata;
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wire tx_udp_payload_tvalid;
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wire tx_udp_payload_tready;
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wire tx_udp_payload_tlast;
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wire tx_udp_payload_tuser;
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udp_ip_rx
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udp_ip_rx_inst (
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.clk(clk),
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.rst(rst),
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// IP frame input
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.input_ip_hdr_valid(input_ip_hdr_valid),
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.input_ip_hdr_ready(input_ip_hdr_ready),
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.input_eth_dest_mac(input_ip_eth_dest_mac),
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.input_eth_src_mac(input_ip_eth_src_mac),
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.input_eth_type(input_ip_eth_type),
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.input_ip_version(input_ip_version),
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.input_ip_ihl(input_ip_ihl),
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.input_ip_dscp(input_ip_dscp),
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.input_ip_ecn(input_ip_ecn),
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.input_ip_length(input_ip_length),
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.input_ip_identification(input_ip_identification),
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.input_ip_flags(input_ip_flags),
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.input_ip_fragment_offset(input_ip_fragment_offset),
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.input_ip_ttl(input_ip_ttl),
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.input_ip_protocol(input_ip_protocol),
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.input_ip_header_checksum(input_ip_header_checksum),
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.input_ip_source_ip(input_ip_source_ip),
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.input_ip_dest_ip(input_ip_dest_ip),
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.input_ip_payload_tdata(input_ip_payload_tdata),
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.input_ip_payload_tvalid(input_ip_payload_tvalid),
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.input_ip_payload_tready(input_ip_payload_tready),
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.input_ip_payload_tlast(input_ip_payload_tlast),
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.input_ip_payload_tuser(input_ip_payload_tuser),
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// UDP frame output
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.output_udp_hdr_valid(output_udp_hdr_valid),
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.output_udp_hdr_ready(output_udp_hdr_ready),
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.output_eth_dest_mac(output_udp_eth_dest_mac),
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.output_eth_src_mac(output_udp_eth_src_mac),
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.output_eth_type(output_udp_eth_type),
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.output_ip_version(output_udp_ip_version),
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.output_ip_ihl(output_udp_ip_ihl),
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.output_ip_dscp(output_udp_ip_dscp),
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.output_ip_ecn(output_udp_ip_ecn),
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.output_ip_length(output_udp_ip_length),
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.output_ip_identification(output_udp_ip_identification),
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.output_ip_flags(output_udp_ip_flags),
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.output_ip_fragment_offset(output_udp_ip_fragment_offset),
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.output_ip_ttl(output_udp_ip_ttl),
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.output_ip_protocol(output_udp_ip_protocol),
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.output_ip_header_checksum(output_udp_ip_header_checksum),
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.output_ip_source_ip(output_udp_ip_source_ip),
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.output_ip_dest_ip(output_udp_ip_dest_ip),
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.output_udp_source_port(output_udp_source_port),
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.output_udp_dest_port(output_udp_dest_port),
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.output_udp_length(output_udp_length),
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.output_udp_checksum(output_udp_checksum),
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.output_udp_payload_tdata(output_udp_payload_tdata),
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.output_udp_payload_tvalid(output_udp_payload_tvalid),
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.output_udp_payload_tready(output_udp_payload_tready),
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.output_udp_payload_tlast(output_udp_payload_tlast),
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.output_udp_payload_tuser(output_udp_payload_tuser),
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// Status signals
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.busy(rx_busy),
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.error_header_early_termination(rx_error_header_early_termination),
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.error_payload_early_termination(rx_error_payload_early_termination)
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);
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generate
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if (CHECKSUM_ENABLE) begin
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udp_checksum #(
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.PAYLOAD_FIFO_ADDR_WIDTH(CHECKSUM_PAYLOAD_FIFO_ADDR_WIDTH),
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.HEADER_FIFO_ADDR_WIDTH(CHECKSUM_HEADER_FIFO_ADDR_WIDTH)
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)
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udp_checksum_inst (
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.clk(clk),
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.rst(rst),
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// UDP frame input
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.input_udp_hdr_valid(input_udp_hdr_valid),
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.input_udp_hdr_ready(input_udp_hdr_ready),
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.input_eth_dest_mac(input_udp_eth_dest_mac),
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.input_eth_src_mac(input_udp_eth_src_mac),
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.input_eth_type(input_udp_eth_type),
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.input_ip_version(input_udp_ip_version),
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.input_ip_ihl(input_udp_ip_ihl),
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.input_ip_dscp(input_udp_ip_dscp),
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.input_ip_ecn(input_udp_ip_ecn),
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.input_ip_identification(input_udp_ip_identification),
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.input_ip_flags(input_udp_ip_flags),
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.input_ip_fragment_offset(input_udp_ip_fragment_offset),
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.input_ip_ttl(input_udp_ip_ttl),
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.input_ip_protocol(0),
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.input_ip_header_checksum(input_udp_ip_header_checksum),
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.input_ip_source_ip(input_udp_ip_source_ip),
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.input_ip_dest_ip(input_udp_ip_dest_ip),
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.input_udp_source_port(input_udp_source_port),
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.input_udp_dest_port(input_udp_dest_port),
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.input_udp_checksum(input_udp_checksum),
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.input_udp_payload_tdata(input_udp_payload_tdata),
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.input_udp_payload_tvalid(input_udp_payload_tvalid),
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.input_udp_payload_tready(input_udp_payload_tready),
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.input_udp_payload_tlast(input_udp_payload_tlast),
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.input_udp_payload_tuser(input_udp_payload_tuser),
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// UDP frame output
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.output_udp_hdr_valid(tx_udp_hdr_valid),
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.output_udp_hdr_ready(tx_udp_hdr_ready),
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.output_eth_dest_mac(tx_udp_eth_dest_mac),
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.output_eth_src_mac(tx_udp_eth_src_mac),
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.output_eth_type(tx_udp_eth_type),
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.output_ip_version(tx_udp_ip_version),
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.output_ip_ihl(tx_udp_ip_ihl),
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.output_ip_dscp(tx_udp_ip_dscp),
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.output_ip_ecn(tx_udp_ip_ecn),
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.output_ip_length(),
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.output_ip_identification(tx_udp_ip_identification),
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.output_ip_flags(tx_udp_ip_flags),
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.output_ip_fragment_offset(tx_udp_ip_fragment_offset),
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.output_ip_ttl(tx_udp_ip_ttl),
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.output_ip_protocol(),
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.output_ip_header_checksum(tx_udp_ip_header_checksum),
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.output_ip_source_ip(tx_udp_ip_source_ip),
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.output_ip_dest_ip(tx_udp_ip_dest_ip),
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.output_udp_source_port(tx_udp_source_port),
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.output_udp_dest_port(tx_udp_dest_port),
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.output_udp_length(tx_udp_length),
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.output_udp_checksum(tx_udp_checksum),
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.output_udp_payload_tdata(tx_udp_payload_tdata),
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.output_udp_payload_tvalid(tx_udp_payload_tvalid),
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.output_udp_payload_tready(tx_udp_payload_tready),
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.output_udp_payload_tlast(tx_udp_payload_tlast),
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.output_udp_payload_tuser(tx_udp_payload_tuser)
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);
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end else begin
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assign tx_udp_hdr_valid = input_udp_hdr_valid;
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assign input_udp_hdr_ready = tx_udp_hdr_ready;
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assign tx_udp_eth_dest_mac = input_udp_eth_dest_mac;
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assign tx_udp_eth_src_mac = input_udp_eth_src_mac;
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assign tx_udp_eth_type = input_udp_eth_type;
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assign tx_udp_ip_version = input_udp_ip_version;
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assign tx_udp_ip_ihl = input_udp_ip_ihl;
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assign tx_udp_ip_dscp = input_udp_ip_dscp;
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assign tx_udp_ip_ecn = input_udp_ip_ecn;
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assign tx_udp_ip_identification = input_udp_ip_identification;
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assign tx_udp_ip_flags = input_udp_ip_flags;
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assign tx_udp_ip_fragment_offset = input_udp_ip_fragment_offset;
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assign tx_udp_ip_ttl = input_udp_ip_ttl;
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assign tx_udp_ip_header_checksum = input_udp_ip_header_checksum;
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assign tx_udp_ip_source_ip = input_udp_ip_source_ip;
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assign tx_udp_ip_dest_ip = input_udp_ip_dest_ip;
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assign tx_udp_source_port = input_udp_source_port;
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assign tx_udp_dest_port = input_udp_dest_port;
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assign tx_udp_length = input_udp_length;
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assign tx_udp_checksum = input_udp_checksum;
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assign tx_udp_payload_tdata = input_udp_payload_tdata;
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assign tx_udp_payload_tvalid = input_udp_payload_tvalid;
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assign input_udp_payload_tready = tx_udp_payload_tready;
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assign tx_udp_payload_tlast = input_udp_payload_tlast;
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assign tx_udp_payload_tuser = input_udp_payload_tuser;
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end
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endgenerate
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udp_ip_tx
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udp_ip_tx_inst (
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.clk(clk),
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.rst(rst),
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// UDP frame input
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.input_udp_hdr_valid(tx_udp_hdr_valid),
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.input_udp_hdr_ready(tx_udp_hdr_ready),
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.input_eth_dest_mac(tx_udp_eth_dest_mac),
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.input_eth_src_mac(tx_udp_eth_src_mac),
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.input_eth_type(tx_udp_eth_type),
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.input_ip_version(tx_udp_ip_version),
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.input_ip_ihl(tx_udp_ip_ihl),
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.input_ip_dscp(tx_udp_ip_dscp),
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.input_ip_ecn(tx_udp_ip_ecn),
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.input_ip_identification(tx_udp_ip_identification),
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.input_ip_flags(tx_udp_ip_flags),
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.input_ip_fragment_offset(tx_udp_ip_fragment_offset),
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.input_ip_ttl(tx_udp_ip_ttl),
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.input_ip_protocol(8'h11),
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.input_ip_header_checksum(tx_udp_ip_header_checksum),
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.input_ip_source_ip(tx_udp_ip_source_ip),
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.input_ip_dest_ip(tx_udp_ip_dest_ip),
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.input_udp_source_port(tx_udp_source_port),
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.input_udp_dest_port(tx_udp_dest_port),
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.input_udp_length(tx_udp_length),
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.input_udp_checksum(tx_udp_checksum),
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.input_udp_payload_tdata(tx_udp_payload_tdata),
|
|
.input_udp_payload_tvalid(tx_udp_payload_tvalid),
|
|
.input_udp_payload_tready(tx_udp_payload_tready),
|
|
.input_udp_payload_tlast(tx_udp_payload_tlast),
|
|
.input_udp_payload_tuser(tx_udp_payload_tuser),
|
|
// IP frame output
|
|
.output_ip_hdr_valid(output_ip_hdr_valid),
|
|
.output_ip_hdr_ready(output_ip_hdr_ready),
|
|
.output_eth_dest_mac(output_ip_eth_dest_mac),
|
|
.output_eth_src_mac(output_ip_eth_src_mac),
|
|
.output_eth_type(output_ip_eth_type),
|
|
.output_ip_version(output_ip_version),
|
|
.output_ip_ihl(output_ip_ihl),
|
|
.output_ip_dscp(output_ip_dscp),
|
|
.output_ip_ecn(output_ip_ecn),
|
|
.output_ip_length(output_ip_length),
|
|
.output_ip_identification(output_ip_identification),
|
|
.output_ip_flags(output_ip_flags),
|
|
.output_ip_fragment_offset(output_ip_fragment_offset),
|
|
.output_ip_ttl(output_ip_ttl),
|
|
.output_ip_protocol(output_ip_protocol),
|
|
.output_ip_header_checksum(output_ip_header_checksum),
|
|
.output_ip_source_ip(output_ip_source_ip),
|
|
.output_ip_dest_ip(output_ip_dest_ip),
|
|
.output_ip_payload_tdata(output_ip_payload_tdata),
|
|
.output_ip_payload_tvalid(output_ip_payload_tvalid),
|
|
.output_ip_payload_tready(output_ip_payload_tready),
|
|
.output_ip_payload_tlast(output_ip_payload_tlast),
|
|
.output_ip_payload_tuser(output_ip_payload_tuser),
|
|
// Status signals
|
|
.busy(tx_busy),
|
|
.error_payload_early_termination(tx_error_payload_early_termination)
|
|
);
|
|
|
|
endmodule
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