mirror of
https://github.com/corundum/corundum.git
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Add AXI arbitrated mux module and testbench
This commit is contained in:
Alex Forencich
parent
a8970e6e75
commit
5f0d23a3ad
193
rtl/axis_arb_mux.py
Executable file
193
rtl/axis_arb_mux.py
Executable file
@ -0,0 +1,193 @@
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#!/usr/bin/env python
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"""axis_mux
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Generates an arbitrated AXI Stream mux with the specified number of ports
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Usage: axis_crosspoint [OPTION]...
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-?, --help display this help and exit
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-p, --ports specify number of ports
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-n, --name specify module name
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-o, --output specify output file name
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"""
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import io
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import sys
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import getopt
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from math import *
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from jinja2 import Template
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class Usage(Exception):
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def __init__(self, msg):
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self.msg = msg
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def main(argv=None):
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if argv is None:
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argv = sys.argv
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try:
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try:
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opts, args = getopt.getopt(argv[1:], "?n:p:o:", ["help", "name=", "ports=", "output="])
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except getopt.error as msg:
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raise Usage(msg)
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# more code, unchanged
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except Usage as err:
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print(err.msg, file=sys.stderr)
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print("for help use --help", file=sys.stderr)
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return 2
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ports = 4
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name = None
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out_name = None
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# process options
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for o, a in opts:
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if o in ('-?', '--help'):
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print(__doc__)
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sys.exit(0)
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if o in ('-p', '--ports'):
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ports = int(a)
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if o in ('-n', '--name'):
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name = a
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if o in ('-o', '--output'):
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out_name = a
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if name is None:
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name = "axis_arb_mux_{0}".format(ports)
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if out_name is None:
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out_name = name + ".v"
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print("Opening file '%s'..." % out_name)
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try:
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out_file = open(out_name, 'w')
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except Exception as ex:
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print("Error opening \"%s\": %s" %(out_name, ex.strerror), file=sys.stderr)
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exit(1)
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print("Generating {0} port AXI Stream arbitrated mux {1}...".format(ports, name))
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select_width = ceil(log2(ports))
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t = Template(u"""/*
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Copyright (c) 2014 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
|
||||
furnished to do so, subject to the following conditions:
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||||
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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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* AXI4-Stream {{n}} port arbitrated multiplexer
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*/
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module {{name}} #
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(
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parameter DATA_WIDTH = 8,
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// arbitration type: "PRIORITY" or "ROUND_ROBIN"
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parameter ARB_TYPE = "PRIORITY"
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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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* AXI inputs
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*/
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{%- for p in ports %}
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input wire [DATA_WIDTH-1:0] input_{{p}}_axis_tdata,
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input wire input_{{p}}_axis_tvalid,
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output wire input_{{p}}_axis_tready,
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input wire input_{{p}}_axis_tlast,
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input wire input_{{p}}_axis_tuser,
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{% endfor %}
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/*
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* AXI output
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*/
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output wire [DATA_WIDTH-1:0] output_axis_tdata,
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output wire output_axis_tvalid,
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input wire output_axis_tready,
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output wire output_axis_tlast,
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output wire output_axis_tuser
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);
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wire [{{n-1}}:0] request;
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wire [{{n-1}}:0] acknowledge;
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wire [{{n-1}}:0] grant;
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wire [{{w-1}}:0] grant_encoded;
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{% for p in ports %}
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assign acknowledge[{{p}}] = input_{{p}}_axis_tvalid & input_{{p}}_axis_tready & input_{{p}}_axis_tlast;
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assign request[{{p}}] = input_{{p}}_axis_tvalid & ~acknowledge[{{p}}];
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{%- endfor %}
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// mux instance
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axis_mux_{{n}} #(
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.DATA_WIDTH(DATA_WIDTH)
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)
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mux_inst (
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.clk(clk),
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.rst(rst),
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{%- for p in ports %}
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.input_{{p}}_axis_tdata(input_{{p}}_axis_tdata),
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.input_{{p}}_axis_tvalid(input_{{p}}_axis_tvalid & grant[{{p}}]),
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.input_{{p}}_axis_tready(input_{{p}}_axis_tready),
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.input_{{p}}_axis_tlast(input_{{p}}_axis_tlast),
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.input_{{p}}_axis_tuser(input_{{p}}_axis_tuser),
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{%- endfor %}
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.output_axis_tdata(output_axis_tdata),
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.output_axis_tvalid(output_axis_tvalid),
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.output_axis_tready(output_axis_tready),
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.output_axis_tlast(output_axis_tlast),
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.output_axis_tuser(output_axis_tuser),
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.select(grant_encoded)
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);
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// arbiter instance
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arbiter #(
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.PORTS({{n}}),
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.TYPE(ARB_TYPE),
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.BLOCK("ACKNOWLEDGE")
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)
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arb_inst (
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.clk(clk),
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.rst(rst),
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.request(request),
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.acknowledge(acknowledge),
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.grant(grant),
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.grant_encoded(grant_encoded)
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);
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endmodule
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""")
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out_file.write(t.render(
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n=ports,
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w=select_width,
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name=name,
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ports=range(ports)
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))
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print("Done")
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if __name__ == "__main__":
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sys.exit(main())
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143
rtl/axis_arb_mux_4.v
Normal file
143
rtl/axis_arb_mux_4.v
Normal file
@ -0,0 +1,143 @@
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/*
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Copyright (c) 2014 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
|
||||
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
|
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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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* AXI4-Stream 4 port arbitrated multiplexer
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*/
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module axis_arb_mux_4 #
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(
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parameter DATA_WIDTH = 8,
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// arbitration type: "PRIORITY" or "ROUND_ROBIN"
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parameter ARB_TYPE = "PRIORITY"
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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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* AXI inputs
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*/
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input wire [DATA_WIDTH-1:0] input_0_axis_tdata,
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input wire input_0_axis_tvalid,
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output wire input_0_axis_tready,
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input wire input_0_axis_tlast,
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input wire input_0_axis_tuser,
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input wire [DATA_WIDTH-1:0] input_1_axis_tdata,
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input wire input_1_axis_tvalid,
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output wire input_1_axis_tready,
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input wire input_1_axis_tlast,
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input wire input_1_axis_tuser,
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input wire [DATA_WIDTH-1:0] input_2_axis_tdata,
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input wire input_2_axis_tvalid,
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output wire input_2_axis_tready,
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input wire input_2_axis_tlast,
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input wire input_2_axis_tuser,
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input wire [DATA_WIDTH-1:0] input_3_axis_tdata,
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input wire input_3_axis_tvalid,
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output wire input_3_axis_tready,
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input wire input_3_axis_tlast,
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input wire input_3_axis_tuser,
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/*
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* AXI output
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*/
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output wire [DATA_WIDTH-1:0] output_axis_tdata,
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output wire output_axis_tvalid,
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input wire output_axis_tready,
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output wire output_axis_tlast,
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output wire output_axis_tuser
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);
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wire [3:0] request;
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wire [3:0] acknowledge;
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wire [3:0] grant;
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wire [1:0] grant_encoded;
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assign acknowledge[0] = input_0_axis_tvalid & input_0_axis_tready & input_0_axis_tlast;
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assign request[0] = input_0_axis_tvalid & ~acknowledge[0];
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assign acknowledge[1] = input_1_axis_tvalid & input_1_axis_tready & input_1_axis_tlast;
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assign request[1] = input_1_axis_tvalid & ~acknowledge[1];
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assign acknowledge[2] = input_2_axis_tvalid & input_2_axis_tready & input_2_axis_tlast;
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assign request[2] = input_2_axis_tvalid & ~acknowledge[2];
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assign acknowledge[3] = input_3_axis_tvalid & input_3_axis_tready & input_3_axis_tlast;
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assign request[3] = input_3_axis_tvalid & ~acknowledge[3];
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// mux instance
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axis_mux_4 #(
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.DATA_WIDTH(DATA_WIDTH)
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)
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mux_inst (
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.clk(clk),
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.rst(rst),
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.input_0_axis_tdata(input_0_axis_tdata),
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.input_0_axis_tvalid(input_0_axis_tvalid & grant[0]),
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.input_0_axis_tready(input_0_axis_tready),
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.input_0_axis_tlast(input_0_axis_tlast),
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.input_0_axis_tuser(input_0_axis_tuser),
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.input_1_axis_tdata(input_1_axis_tdata),
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.input_1_axis_tvalid(input_1_axis_tvalid & grant[1]),
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.input_1_axis_tready(input_1_axis_tready),
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.input_1_axis_tlast(input_1_axis_tlast),
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.input_1_axis_tuser(input_1_axis_tuser),
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.input_2_axis_tdata(input_2_axis_tdata),
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.input_2_axis_tvalid(input_2_axis_tvalid & grant[2]),
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.input_2_axis_tready(input_2_axis_tready),
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.input_2_axis_tlast(input_2_axis_tlast),
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.input_2_axis_tuser(input_2_axis_tuser),
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.input_3_axis_tdata(input_3_axis_tdata),
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.input_3_axis_tvalid(input_3_axis_tvalid & grant[3]),
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.input_3_axis_tready(input_3_axis_tready),
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.input_3_axis_tlast(input_3_axis_tlast),
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.input_3_axis_tuser(input_3_axis_tuser),
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.output_axis_tdata(output_axis_tdata),
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.output_axis_tvalid(output_axis_tvalid),
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.output_axis_tready(output_axis_tready),
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.output_axis_tlast(output_axis_tlast),
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.output_axis_tuser(output_axis_tuser),
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.select(grant_encoded)
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);
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// arbiter instance
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arbiter #(
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.PORTS(4),
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.TYPE(ARB_TYPE),
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.BLOCK("ACKNOWLEDGE")
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)
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arb_inst (
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.clk(clk),
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.rst(rst),
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.request(request),
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.acknowledge(acknowledge),
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.grant(grant),
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.grant_encoded(grant_encoded)
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);
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endmodule
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198
rtl/axis_arb_mux_64.py
Executable file
198
rtl/axis_arb_mux_64.py
Executable file
@ -0,0 +1,198 @@
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#!/usr/bin/env python
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"""axis_mux
|
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|
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Generates an arbitrated AXI Stream mux with the specified number of ports
|
||||
|
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Usage: axis_crosspoint [OPTION]...
|
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-?, --help display this help and exit
|
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-p, --ports specify number of ports
|
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-n, --name specify module name
|
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-o, --output specify output file name
|
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"""
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import io
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import sys
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import getopt
|
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from math import *
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from jinja2 import Template
|
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|
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class Usage(Exception):
|
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def __init__(self, msg):
|
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self.msg = msg
|
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|
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def main(argv=None):
|
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if argv is None:
|
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argv = sys.argv
|
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try:
|
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try:
|
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opts, args = getopt.getopt(argv[1:], "?n:p:o:", ["help", "name=", "ports=", "output="])
|
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except getopt.error as msg:
|
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raise Usage(msg)
|
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# more code, unchanged
|
||||
except Usage as err:
|
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print(err.msg, file=sys.stderr)
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print("for help use --help", file=sys.stderr)
|
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return 2
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ports = 4
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name = None
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out_name = None
|
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|
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# process options
|
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for o, a in opts:
|
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if o in ('-?', '--help'):
|
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print(__doc__)
|
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sys.exit(0)
|
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if o in ('-p', '--ports'):
|
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ports = int(a)
|
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if o in ('-n', '--name'):
|
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name = a
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if o in ('-o', '--output'):
|
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out_name = a
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|
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if name is None:
|
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name = "axis_arb_mux_64_{0}".format(ports)
|
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|
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if out_name is None:
|
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out_name = name + ".v"
|
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|
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print("Opening file '%s'..." % out_name)
|
||||
|
||||
try:
|
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out_file = open(out_name, 'w')
|
||||
except Exception as ex:
|
||||
print("Error opening \"%s\": %s" %(out_name, ex.strerror), file=sys.stderr)
|
||||
exit(1)
|
||||
|
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print("Generating {0} port AXI Stream arbitrated mux {1}...".format(ports, name))
|
||||
|
||||
select_width = ceil(log2(ports))
|
||||
|
||||
t = Template(u"""/*
|
||||
|
||||
Copyright (c) 2014 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.
|
||||
|
||||
*/
|
||||
|
||||
// Language: Verilog 2001
|
||||
|
||||
`timescale 1ns / 1ps
|
||||
|
||||
/*
|
||||
* AXI4-Stream {{n}} port arbitrated multiplexer (64 bit datapath)
|
||||
*/
|
||||
module {{name}} #
|
||||
(
|
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parameter DATA_WIDTH = 64,
|
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parameter KEEP_WIDTH = (DATA_WIDTH/8),
|
||||
// arbitration type: "PRIORITY" or "ROUND_ROBIN"
|
||||
parameter ARB_TYPE = "PRIORITY"
|
||||
)
|
||||
(
|
||||
input wire clk,
|
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input wire rst,
|
||||
|
||||
/*
|
||||
* AXI inputs
|
||||
*/
|
||||
{%- for p in ports %}
|
||||
input wire [DATA_WIDTH-1:0] input_{{p}}_axis_tdata,
|
||||
input wire [KEEP_WIDTH-1:0] input_{{p}}_axis_tkeep,
|
||||
input wire input_{{p}}_axis_tvalid,
|
||||
output wire input_{{p}}_axis_tready,
|
||||
input wire input_{{p}}_axis_tlast,
|
||||
input wire input_{{p}}_axis_tuser,
|
||||
{% endfor %}
|
||||
/*
|
||||
* AXI output
|
||||
*/
|
||||
output wire [DATA_WIDTH-1:0] output_axis_tdata,
|
||||
output wire [KEEP_WIDTH-1:0] output_axis_tkeep,
|
||||
output wire output_axis_tvalid,
|
||||
input wire output_axis_tready,
|
||||
output wire output_axis_tlast,
|
||||
output wire output_axis_tuser
|
||||
);
|
||||
|
||||
wire [{{n-1}}:0] request;
|
||||
wire [{{n-1}}:0] acknowledge;
|
||||
wire [{{n-1}}:0] grant;
|
||||
wire [{{w-1}}:0] grant_encoded;
|
||||
{% for p in ports %}
|
||||
assign acknowledge[{{p}}] = input_{{p}}_axis_tvalid & input_{{p}}_axis_tready & input_{{p}}_axis_tlast;
|
||||
assign request[{{p}}] = input_{{p}}_axis_tvalid & ~acknowledge[{{p}}];
|
||||
{%- endfor %}
|
||||
|
||||
// mux instance
|
||||
axis_mux_64_{{n}} #(
|
||||
.DATA_WIDTH(DATA_WIDTH)
|
||||
)
|
||||
mux_inst (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
{%- for p in ports %}
|
||||
.input_{{p}}_axis_tdata(input_{{p}}_axis_tdata),
|
||||
.input_{{p}}_axis_tkeep(input_{{p}}_axis_tkeep),
|
||||
.input_{{p}}_axis_tvalid(input_{{p}}_axis_tvalid & grant[{{p}}]),
|
||||
.input_{{p}}_axis_tready(input_{{p}}_axis_tready),
|
||||
.input_{{p}}_axis_tlast(input_{{p}}_axis_tlast),
|
||||
.input_{{p}}_axis_tuser(input_{{p}}_axis_tuser),
|
||||
{%- endfor %}
|
||||
.output_axis_tdata(output_axis_tdata),
|
||||
.output_axis_tkeep(output_axis_tkeep),
|
||||
.output_axis_tvalid(output_axis_tvalid),
|
||||
.output_axis_tready(output_axis_tready),
|
||||
.output_axis_tlast(output_axis_tlast),
|
||||
.output_axis_tuser(output_axis_tuser),
|
||||
.select(grant_encoded)
|
||||
);
|
||||
|
||||
// arbiter instance
|
||||
arbiter #(
|
||||
.PORTS({{n}}),
|
||||
.TYPE(ARB_TYPE),
|
||||
.BLOCK("ACKNOWLEDGE")
|
||||
)
|
||||
arb_inst (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
.request(request),
|
||||
.acknowledge(acknowledge),
|
||||
.grant(grant),
|
||||
.grant_encoded(grant_encoded)
|
||||
);
|
||||
|
||||
endmodule
|
||||
|
||||
""")
|
||||
|
||||
out_file.write(t.render(
|
||||
n=ports,
|
||||
w=select_width,
|
||||
name=name,
|
||||
ports=range(ports)
|
||||
))
|
||||
|
||||
print("Done")
|
||||
|
||||
if __name__ == "__main__":
|
||||
sys.exit(main())
|
||||
|
||||
154
rtl/axis_arb_mux_64_4.v
Normal file
154
rtl/axis_arb_mux_64_4.v
Normal file
@ -0,0 +1,154 @@
|
||||
/*
|
||||
|
||||
Copyright (c) 2014 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.
|
||||
|
||||
*/
|
||||
|
||||
// Language: Verilog 2001
|
||||
|
||||
`timescale 1ns / 1ps
|
||||
|
||||
/*
|
||||
* AXI4-Stream 4 port arbitrated multiplexer (64 bit datapath)
|
||||
*/
|
||||
module axis_arb_mux_64_4 #
|
||||
(
|
||||
parameter DATA_WIDTH = 64,
|
||||
parameter KEEP_WIDTH = (DATA_WIDTH/8),
|
||||
// arbitration type: "PRIORITY" or "ROUND_ROBIN"
|
||||
parameter ARB_TYPE = "PRIORITY"
|
||||
)
|
||||
(
|
||||
input wire clk,
|
||||
input wire rst,
|
||||
|
||||
/*
|
||||
* AXI inputs
|
||||
*/
|
||||
input wire [DATA_WIDTH-1:0] input_0_axis_tdata,
|
||||
input wire [KEEP_WIDTH-1:0] input_0_axis_tkeep,
|
||||
input wire input_0_axis_tvalid,
|
||||
output wire input_0_axis_tready,
|
||||
input wire input_0_axis_tlast,
|
||||
input wire input_0_axis_tuser,
|
||||
|
||||
input wire [DATA_WIDTH-1:0] input_1_axis_tdata,
|
||||
input wire [KEEP_WIDTH-1:0] input_1_axis_tkeep,
|
||||
input wire input_1_axis_tvalid,
|
||||
output wire input_1_axis_tready,
|
||||
input wire input_1_axis_tlast,
|
||||
input wire input_1_axis_tuser,
|
||||
|
||||
input wire [DATA_WIDTH-1:0] input_2_axis_tdata,
|
||||
input wire [KEEP_WIDTH-1:0] input_2_axis_tkeep,
|
||||
input wire input_2_axis_tvalid,
|
||||
output wire input_2_axis_tready,
|
||||
input wire input_2_axis_tlast,
|
||||
input wire input_2_axis_tuser,
|
||||
|
||||
input wire [DATA_WIDTH-1:0] input_3_axis_tdata,
|
||||
input wire [KEEP_WIDTH-1:0] input_3_axis_tkeep,
|
||||
input wire input_3_axis_tvalid,
|
||||
output wire input_3_axis_tready,
|
||||
input wire input_3_axis_tlast,
|
||||
input wire input_3_axis_tuser,
|
||||
|
||||
/*
|
||||
* AXI output
|
||||
*/
|
||||
output wire [DATA_WIDTH-1:0] output_axis_tdata,
|
||||
output wire [KEEP_WIDTH-1:0] output_axis_tkeep,
|
||||
output wire output_axis_tvalid,
|
||||
input wire output_axis_tready,
|
||||
output wire output_axis_tlast,
|
||||
output wire output_axis_tuser
|
||||
);
|
||||
|
||||
wire [3:0] request;
|
||||
wire [3:0] acknowledge;
|
||||
wire [3:0] grant;
|
||||
wire [1:0] grant_encoded;
|
||||
|
||||
assign acknowledge[0] = input_0_axis_tvalid & input_0_axis_tready & input_0_axis_tlast;
|
||||
assign request[0] = input_0_axis_tvalid & ~acknowledge[0];
|
||||
assign acknowledge[1] = input_1_axis_tvalid & input_1_axis_tready & input_1_axis_tlast;
|
||||
assign request[1] = input_1_axis_tvalid & ~acknowledge[1];
|
||||
assign acknowledge[2] = input_2_axis_tvalid & input_2_axis_tready & input_2_axis_tlast;
|
||||
assign request[2] = input_2_axis_tvalid & ~acknowledge[2];
|
||||
assign acknowledge[3] = input_3_axis_tvalid & input_3_axis_tready & input_3_axis_tlast;
|
||||
assign request[3] = input_3_axis_tvalid & ~acknowledge[3];
|
||||
|
||||
// mux instance
|
||||
axis_mux_64_4 #(
|
||||
.DATA_WIDTH(DATA_WIDTH)
|
||||
)
|
||||
mux_inst (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
.input_0_axis_tdata(input_0_axis_tdata),
|
||||
.input_0_axis_tkeep(input_0_axis_tkeep),
|
||||
.input_0_axis_tvalid(input_0_axis_tvalid & grant[0]),
|
||||
.input_0_axis_tready(input_0_axis_tready),
|
||||
.input_0_axis_tlast(input_0_axis_tlast),
|
||||
.input_0_axis_tuser(input_0_axis_tuser),
|
||||
.input_1_axis_tdata(input_1_axis_tdata),
|
||||
.input_1_axis_tkeep(input_1_axis_tkeep),
|
||||
.input_1_axis_tvalid(input_1_axis_tvalid & grant[1]),
|
||||
.input_1_axis_tready(input_1_axis_tready),
|
||||
.input_1_axis_tlast(input_1_axis_tlast),
|
||||
.input_1_axis_tuser(input_1_axis_tuser),
|
||||
.input_2_axis_tdata(input_2_axis_tdata),
|
||||
.input_2_axis_tkeep(input_2_axis_tkeep),
|
||||
.input_2_axis_tvalid(input_2_axis_tvalid & grant[2]),
|
||||
.input_2_axis_tready(input_2_axis_tready),
|
||||
.input_2_axis_tlast(input_2_axis_tlast),
|
||||
.input_2_axis_tuser(input_2_axis_tuser),
|
||||
.input_3_axis_tdata(input_3_axis_tdata),
|
||||
.input_3_axis_tkeep(input_3_axis_tkeep),
|
||||
.input_3_axis_tvalid(input_3_axis_tvalid & grant[3]),
|
||||
.input_3_axis_tready(input_3_axis_tready),
|
||||
.input_3_axis_tlast(input_3_axis_tlast),
|
||||
.input_3_axis_tuser(input_3_axis_tuser),
|
||||
.output_axis_tdata(output_axis_tdata),
|
||||
.output_axis_tkeep(output_axis_tkeep),
|
||||
.output_axis_tvalid(output_axis_tvalid),
|
||||
.output_axis_tready(output_axis_tready),
|
||||
.output_axis_tlast(output_axis_tlast),
|
||||
.output_axis_tuser(output_axis_tuser),
|
||||
.select(grant_encoded)
|
||||
);
|
||||
|
||||
// arbiter instance
|
||||
arbiter #(
|
||||
.PORTS(4),
|
||||
.TYPE(ARB_TYPE),
|
||||
.BLOCK("ACKNOWLEDGE")
|
||||
)
|
||||
arb_inst (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
.request(request),
|
||||
.acknowledge(acknowledge),
|
||||
.grant(grant),
|
||||
.grant_encoded(grant_encoded)
|
||||
);
|
||||
|
||||
endmodule
|
||||
544
tb/test_axis_arb_mux_4.py
Executable file
544
tb/test_axis_arb_mux_4.py
Executable file
@ -0,0 +1,544 @@
|
||||
#!/usr/bin/env python2
|
||||
"""
|
||||
|
||||
Copyright (c) 2014 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
|
||||
from Queue import Queue
|
||||
|
||||
import axis_ep
|
||||
|
||||
module = 'axis_arb_mux_4'
|
||||
|
||||
srcs = []
|
||||
|
||||
srcs.append("../rtl/%s.v" % module)
|
||||
srcs.append("../rtl/axis_mux_4.v")
|
||||
srcs.append("../rtl/arbiter.v")
|
||||
srcs.append("../rtl/priority_encoder.v")
|
||||
srcs.append("test_%s.v" % module)
|
||||
|
||||
src = ' '.join(srcs)
|
||||
|
||||
build_cmd = "iverilog -o test_%s.vvp %s" % (module, src)
|
||||
|
||||
def dut_axis_arb_mux_4(clk,
|
||||
rst,
|
||||
current_test,
|
||||
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tready,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tready,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tready,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tready,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata,
|
||||
output_axis_tvalid,
|
||||
output_axis_tready,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser):
|
||||
|
||||
if os.system(build_cmd):
|
||||
raise Exception("Error running build command")
|
||||
return Cosimulation("vvp -m myhdl test_%s.vvp -lxt2" % module,
|
||||
clk=clk,
|
||||
rst=rst,
|
||||
current_test=current_test,
|
||||
|
||||
input_0_axis_tdata=input_0_axis_tdata,
|
||||
input_0_axis_tvalid=input_0_axis_tvalid,
|
||||
input_0_axis_tready=input_0_axis_tready,
|
||||
input_0_axis_tlast=input_0_axis_tlast,
|
||||
input_0_axis_tuser=input_0_axis_tuser,
|
||||
input_1_axis_tdata=input_1_axis_tdata,
|
||||
input_1_axis_tvalid=input_1_axis_tvalid,
|
||||
input_1_axis_tready=input_1_axis_tready,
|
||||
input_1_axis_tlast=input_1_axis_tlast,
|
||||
input_1_axis_tuser=input_1_axis_tuser,
|
||||
input_2_axis_tdata=input_2_axis_tdata,
|
||||
input_2_axis_tvalid=input_2_axis_tvalid,
|
||||
input_2_axis_tready=input_2_axis_tready,
|
||||
input_2_axis_tlast=input_2_axis_tlast,
|
||||
input_2_axis_tuser=input_2_axis_tuser,
|
||||
input_3_axis_tdata=input_3_axis_tdata,
|
||||
input_3_axis_tvalid=input_3_axis_tvalid,
|
||||
input_3_axis_tready=input_3_axis_tready,
|
||||
input_3_axis_tlast=input_3_axis_tlast,
|
||||
input_3_axis_tuser=input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata=output_axis_tdata,
|
||||
output_axis_tvalid=output_axis_tvalid,
|
||||
output_axis_tready=output_axis_tready,
|
||||
output_axis_tlast=output_axis_tlast,
|
||||
output_axis_tuser=output_axis_tuser)
|
||||
|
||||
def bench():
|
||||
|
||||
# Inputs
|
||||
clk = Signal(bool(0))
|
||||
rst = Signal(bool(0))
|
||||
current_test = Signal(intbv(0)[8:])
|
||||
|
||||
input_0_axis_tdata = Signal(intbv(0)[8:])
|
||||
input_0_axis_tvalid = Signal(bool(0))
|
||||
input_0_axis_tlast = Signal(bool(0))
|
||||
input_0_axis_tuser = Signal(bool(0))
|
||||
input_1_axis_tdata = Signal(intbv(0)[8:])
|
||||
input_1_axis_tvalid = Signal(bool(0))
|
||||
input_1_axis_tlast = Signal(bool(0))
|
||||
input_1_axis_tuser = Signal(bool(0))
|
||||
input_2_axis_tdata = Signal(intbv(0)[8:])
|
||||
input_2_axis_tvalid = Signal(bool(0))
|
||||
input_2_axis_tlast = Signal(bool(0))
|
||||
input_2_axis_tuser = Signal(bool(0))
|
||||
input_3_axis_tdata = Signal(intbv(0)[8:])
|
||||
input_3_axis_tvalid = Signal(bool(0))
|
||||
input_3_axis_tlast = Signal(bool(0))
|
||||
input_3_axis_tuser = Signal(bool(0))
|
||||
|
||||
output_axis_tready = Signal(bool(0))
|
||||
|
||||
# Outputs
|
||||
input_0_axis_tready = Signal(bool(0))
|
||||
input_1_axis_tready = Signal(bool(0))
|
||||
input_2_axis_tready = Signal(bool(0))
|
||||
input_3_axis_tready = Signal(bool(0))
|
||||
|
||||
output_axis_tdata = Signal(intbv(0)[8:])
|
||||
output_axis_tvalid = Signal(bool(0))
|
||||
output_axis_tlast = Signal(bool(0))
|
||||
output_axis_tuser = Signal(bool(0))
|
||||
|
||||
# sources and sinks
|
||||
source_0_queue = Queue()
|
||||
source_0_pause = Signal(bool(0))
|
||||
source_1_queue = Queue()
|
||||
source_1_pause = Signal(bool(0))
|
||||
source_2_queue = Queue()
|
||||
source_2_pause = Signal(bool(0))
|
||||
source_3_queue = Queue()
|
||||
source_3_pause = Signal(bool(0))
|
||||
sink_queue = Queue()
|
||||
sink_pause = Signal(bool(0))
|
||||
|
||||
source_0 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_0_axis_tdata,
|
||||
tvalid=input_0_axis_tvalid,
|
||||
tready=input_0_axis_tready,
|
||||
tlast=input_0_axis_tlast,
|
||||
tuser=input_0_axis_tuser,
|
||||
fifo=source_0_queue,
|
||||
pause=source_0_pause,
|
||||
name='source0')
|
||||
source_1 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_1_axis_tdata,
|
||||
tvalid=input_1_axis_tvalid,
|
||||
tready=input_1_axis_tready,
|
||||
tlast=input_1_axis_tlast,
|
||||
tuser=input_1_axis_tuser,
|
||||
fifo=source_1_queue,
|
||||
pause=source_1_pause,
|
||||
name='source1')
|
||||
source_2 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_2_axis_tdata,
|
||||
tvalid=input_2_axis_tvalid,
|
||||
tready=input_2_axis_tready,
|
||||
tlast=input_2_axis_tlast,
|
||||
tuser=input_2_axis_tuser,
|
||||
fifo=source_2_queue,
|
||||
pause=source_2_pause,
|
||||
name='source2')
|
||||
source_3 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_3_axis_tdata,
|
||||
tvalid=input_3_axis_tvalid,
|
||||
tready=input_3_axis_tready,
|
||||
tlast=input_3_axis_tlast,
|
||||
tuser=input_3_axis_tuser,
|
||||
fifo=source_3_queue,
|
||||
pause=source_3_pause,
|
||||
name='source3')
|
||||
|
||||
sink = axis_ep.AXIStreamSink(clk,
|
||||
rst,
|
||||
tdata=output_axis_tdata,
|
||||
tvalid=output_axis_tvalid,
|
||||
tready=output_axis_tready,
|
||||
tlast=output_axis_tlast,
|
||||
tuser=output_axis_tuser,
|
||||
fifo=sink_queue,
|
||||
pause=sink_pause,
|
||||
name='sink')
|
||||
|
||||
# DUT
|
||||
dut = dut_axis_arb_mux_4(clk,
|
||||
rst,
|
||||
current_test,
|
||||
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tready,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tready,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tready,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tready,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata,
|
||||
output_axis_tvalid,
|
||||
output_axis_tready,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser)
|
||||
|
||||
@always(delay(4))
|
||||
def clkgen():
|
||||
clk.next = not clk
|
||||
|
||||
@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
|
||||
|
||||
yield clk.posedge
|
||||
print("test 1: port 0")
|
||||
current_test.next = 1
|
||||
|
||||
test_frame = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_0_queue.put(test_frame)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 2: port 1")
|
||||
current_test.next = 2
|
||||
|
||||
test_frame = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 3: back-to-back packets, same port")
|
||||
current_test.next = 3
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_0_queue.put(test_frame1)
|
||||
source_0_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 4: back-to-back packets, different ports")
|
||||
current_test.next = 4
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 5: alterate pause source")
|
||||
current_test.next = 5
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
source_0_pause.next = True
|
||||
source_1_pause.next = True
|
||||
source_2_pause.next = True
|
||||
source_3_pause.next = True
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
source_0_pause.next = False
|
||||
source_1_pause.next = False
|
||||
source_2_pause.next = False
|
||||
source_3_pause.next = False
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 6: alterate pause sink")
|
||||
current_test.next = 6
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
sink_pause.next = True
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
sink_pause.next = False
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 4: back-to-back packets, different ports, arbitration test")
|
||||
current_test.next = 4
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
yield clk.posedge
|
||||
|
||||
yield delay(800)
|
||||
yield clk.posedge
|
||||
source_2_queue.put(test_frame2)
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
raise StopSimulation
|
||||
|
||||
return dut, source_0, source_1, source_2, source_3, sink, clkgen, check
|
||||
|
||||
def test_bench():
|
||||
os.chdir(os.path.dirname(os.path.abspath(__file__)))
|
||||
sim = Simulation(bench())
|
||||
sim.run()
|
||||
|
||||
if __name__ == '__main__':
|
||||
print("Running test...")
|
||||
test_bench()
|
||||
|
||||
137
tb/test_axis_arb_mux_4.v
Normal file
137
tb/test_axis_arb_mux_4.v
Normal file
@ -0,0 +1,137 @@
|
||||
/*
|
||||
|
||||
Copyright (c) 2014 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.
|
||||
|
||||
*/
|
||||
|
||||
// Language: Verilog 2001
|
||||
|
||||
`timescale 1 ns / 1 ps
|
||||
|
||||
module test_axis_arb_mux_4;
|
||||
|
||||
// Inputs
|
||||
reg clk = 0;
|
||||
reg rst = 0;
|
||||
reg [7:0] current_test = 0;
|
||||
|
||||
reg [7:0] input_0_axis_tdata = 0;
|
||||
reg input_0_axis_tvalid = 0;
|
||||
reg input_0_axis_tlast = 0;
|
||||
reg input_0_axis_tuser = 0;
|
||||
reg [7:0] input_1_axis_tdata = 0;
|
||||
reg input_1_axis_tvalid = 0;
|
||||
reg input_1_axis_tlast = 0;
|
||||
reg input_1_axis_tuser = 0;
|
||||
reg [7:0] input_2_axis_tdata = 0;
|
||||
reg input_2_axis_tvalid = 0;
|
||||
reg input_2_axis_tlast = 0;
|
||||
reg input_2_axis_tuser = 0;
|
||||
reg [7:0] input_3_axis_tdata = 0;
|
||||
reg input_3_axis_tvalid = 0;
|
||||
reg input_3_axis_tlast = 0;
|
||||
reg input_3_axis_tuser = 0;
|
||||
|
||||
reg output_axis_tready = 0;
|
||||
|
||||
// Outputs
|
||||
wire input_0_axis_tready;
|
||||
wire input_1_axis_tready;
|
||||
wire input_2_axis_tready;
|
||||
wire input_3_axis_tready;
|
||||
|
||||
wire [7:0] output_axis_tdata;
|
||||
wire output_axis_tvalid;
|
||||
wire output_axis_tlast;
|
||||
wire output_axis_tuser;
|
||||
|
||||
initial begin
|
||||
// myhdl integration
|
||||
$from_myhdl(clk,
|
||||
rst,
|
||||
current_test,
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
output_axis_tready);
|
||||
$to_myhdl(input_0_axis_tready,
|
||||
input_1_axis_tready,
|
||||
input_2_axis_tready,
|
||||
input_3_axis_tready,
|
||||
output_axis_tdata,
|
||||
output_axis_tvalid,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser);
|
||||
|
||||
// dump file
|
||||
$dumpfile("test_axis_arb_mux_4.lxt");
|
||||
$dumpvars(0, test_axis_arb_mux_4);
|
||||
end
|
||||
|
||||
axis_arb_mux_4 #(
|
||||
.DATA_WIDTH(8)
|
||||
)
|
||||
UUT (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
// AXI inputs
|
||||
.input_0_axis_tdata(input_0_axis_tdata),
|
||||
.input_0_axis_tvalid(input_0_axis_tvalid),
|
||||
.input_0_axis_tready(input_0_axis_tready),
|
||||
.input_0_axis_tlast(input_0_axis_tlast),
|
||||
.input_0_axis_tuser(input_0_axis_tuser),
|
||||
.input_1_axis_tdata(input_1_axis_tdata),
|
||||
.input_1_axis_tvalid(input_1_axis_tvalid),
|
||||
.input_1_axis_tready(input_1_axis_tready),
|
||||
.input_1_axis_tlast(input_1_axis_tlast),
|
||||
.input_1_axis_tuser(input_1_axis_tuser),
|
||||
.input_2_axis_tdata(input_2_axis_tdata),
|
||||
.input_2_axis_tvalid(input_2_axis_tvalid),
|
||||
.input_2_axis_tready(input_2_axis_tready),
|
||||
.input_2_axis_tlast(input_2_axis_tlast),
|
||||
.input_2_axis_tuser(input_2_axis_tuser),
|
||||
.input_3_axis_tdata(input_3_axis_tdata),
|
||||
.input_3_axis_tvalid(input_3_axis_tvalid),
|
||||
.input_3_axis_tready(input_3_axis_tready),
|
||||
.input_3_axis_tlast(input_3_axis_tlast),
|
||||
.input_3_axis_tuser(input_3_axis_tuser),
|
||||
// AXI output
|
||||
.output_axis_tdata(output_axis_tdata),
|
||||
.output_axis_tvalid(output_axis_tvalid),
|
||||
.output_axis_tready(output_axis_tready),
|
||||
.output_axis_tlast(output_axis_tlast),
|
||||
.output_axis_tuser(output_axis_tuser)
|
||||
);
|
||||
|
||||
endmodule
|
||||
569
tb/test_axis_arb_mux_64_4.py
Executable file
569
tb/test_axis_arb_mux_64_4.py
Executable file
@ -0,0 +1,569 @@
|
||||
#!/usr/bin/env python2
|
||||
"""
|
||||
|
||||
Copyright (c) 2014 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
|
||||
from Queue import Queue
|
||||
|
||||
import axis_ep
|
||||
|
||||
module = 'axis_arb_mux_64_4'
|
||||
|
||||
srcs = []
|
||||
|
||||
srcs.append("../rtl/%s.v" % module)
|
||||
srcs.append("../rtl/axis_mux_64_4.v")
|
||||
srcs.append("../rtl/arbiter.v")
|
||||
srcs.append("../rtl/priority_encoder.v")
|
||||
srcs.append("test_%s.v" % module)
|
||||
|
||||
src = ' '.join(srcs)
|
||||
|
||||
build_cmd = "iverilog -o test_%s.vvp %s" % (module, src)
|
||||
|
||||
def dut_axis_arb_mux_64_4(clk,
|
||||
rst,
|
||||
current_test,
|
||||
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tkeep,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tready,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tkeep,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tready,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tkeep,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tready,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tkeep,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tready,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata,
|
||||
output_axis_tkeep,
|
||||
output_axis_tvalid,
|
||||
output_axis_tready,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser):
|
||||
|
||||
if os.system(build_cmd):
|
||||
raise Exception("Error running build command")
|
||||
return Cosimulation("vvp -m myhdl test_%s.vvp -lxt2" % module,
|
||||
clk=clk,
|
||||
rst=rst,
|
||||
current_test=current_test,
|
||||
|
||||
input_0_axis_tdata=input_0_axis_tdata,
|
||||
input_0_axis_tkeep=input_0_axis_tkeep,
|
||||
input_0_axis_tvalid=input_0_axis_tvalid,
|
||||
input_0_axis_tready=input_0_axis_tready,
|
||||
input_0_axis_tlast=input_0_axis_tlast,
|
||||
input_0_axis_tuser=input_0_axis_tuser,
|
||||
input_1_axis_tdata=input_1_axis_tdata,
|
||||
input_1_axis_tkeep=input_1_axis_tkeep,
|
||||
input_1_axis_tvalid=input_1_axis_tvalid,
|
||||
input_1_axis_tready=input_1_axis_tready,
|
||||
input_1_axis_tlast=input_1_axis_tlast,
|
||||
input_1_axis_tuser=input_1_axis_tuser,
|
||||
input_2_axis_tdata=input_2_axis_tdata,
|
||||
input_2_axis_tkeep=input_2_axis_tkeep,
|
||||
input_2_axis_tvalid=input_2_axis_tvalid,
|
||||
input_2_axis_tready=input_2_axis_tready,
|
||||
input_2_axis_tlast=input_2_axis_tlast,
|
||||
input_2_axis_tuser=input_2_axis_tuser,
|
||||
input_3_axis_tdata=input_3_axis_tdata,
|
||||
input_3_axis_tkeep=input_3_axis_tkeep,
|
||||
input_3_axis_tvalid=input_3_axis_tvalid,
|
||||
input_3_axis_tready=input_3_axis_tready,
|
||||
input_3_axis_tlast=input_3_axis_tlast,
|
||||
input_3_axis_tuser=input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata=output_axis_tdata,
|
||||
output_axis_tkeep=output_axis_tkeep,
|
||||
output_axis_tvalid=output_axis_tvalid,
|
||||
output_axis_tready=output_axis_tready,
|
||||
output_axis_tlast=output_axis_tlast,
|
||||
output_axis_tuser=output_axis_tuser)
|
||||
|
||||
def bench():
|
||||
|
||||
# Inputs
|
||||
clk = Signal(bool(0))
|
||||
rst = Signal(bool(0))
|
||||
current_test = Signal(intbv(0)[8:])
|
||||
|
||||
input_0_axis_tdata = Signal(intbv(0)[64:])
|
||||
input_0_axis_tkeep = Signal(intbv(0)[8:])
|
||||
input_0_axis_tvalid = Signal(bool(0))
|
||||
input_0_axis_tlast = Signal(bool(0))
|
||||
input_0_axis_tuser = Signal(bool(0))
|
||||
input_1_axis_tdata = Signal(intbv(0)[64:])
|
||||
input_1_axis_tkeep = Signal(intbv(0)[8:])
|
||||
input_1_axis_tvalid = Signal(bool(0))
|
||||
input_1_axis_tlast = Signal(bool(0))
|
||||
input_1_axis_tuser = Signal(bool(0))
|
||||
input_2_axis_tdata = Signal(intbv(0)[64:])
|
||||
input_2_axis_tkeep = Signal(intbv(0)[8:])
|
||||
input_2_axis_tvalid = Signal(bool(0))
|
||||
input_2_axis_tlast = Signal(bool(0))
|
||||
input_2_axis_tuser = Signal(bool(0))
|
||||
input_3_axis_tdata = Signal(intbv(0)[64:])
|
||||
input_3_axis_tkeep = Signal(intbv(0)[8:])
|
||||
input_3_axis_tvalid = Signal(bool(0))
|
||||
input_3_axis_tlast = Signal(bool(0))
|
||||
input_3_axis_tuser = Signal(bool(0))
|
||||
|
||||
output_axis_tready = Signal(bool(0))
|
||||
|
||||
# Outputs
|
||||
input_0_axis_tready = Signal(bool(0))
|
||||
input_1_axis_tready = Signal(bool(0))
|
||||
input_2_axis_tready = Signal(bool(0))
|
||||
input_3_axis_tready = Signal(bool(0))
|
||||
|
||||
output_axis_tdata = Signal(intbv(0)[64:])
|
||||
output_axis_tkeep = Signal(intbv(0)[8:])
|
||||
output_axis_tvalid = Signal(bool(0))
|
||||
output_axis_tlast = Signal(bool(0))
|
||||
output_axis_tuser = Signal(bool(0))
|
||||
|
||||
# sources and sinks
|
||||
source_0_queue = Queue()
|
||||
source_0_pause = Signal(bool(0))
|
||||
source_1_queue = Queue()
|
||||
source_1_pause = Signal(bool(0))
|
||||
source_2_queue = Queue()
|
||||
source_2_pause = Signal(bool(0))
|
||||
source_3_queue = Queue()
|
||||
source_3_pause = Signal(bool(0))
|
||||
sink_queue = Queue()
|
||||
sink_pause = Signal(bool(0))
|
||||
|
||||
source_0 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_0_axis_tdata,
|
||||
tkeep=input_0_axis_tkeep,
|
||||
tvalid=input_0_axis_tvalid,
|
||||
tready=input_0_axis_tready,
|
||||
tlast=input_0_axis_tlast,
|
||||
tuser=input_0_axis_tuser,
|
||||
fifo=source_0_queue,
|
||||
pause=source_0_pause,
|
||||
name='source0')
|
||||
source_1 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_1_axis_tdata,
|
||||
tkeep=input_1_axis_tkeep,
|
||||
tvalid=input_1_axis_tvalid,
|
||||
tready=input_1_axis_tready,
|
||||
tlast=input_1_axis_tlast,
|
||||
tuser=input_1_axis_tuser,
|
||||
fifo=source_1_queue,
|
||||
pause=source_1_pause,
|
||||
name='source1')
|
||||
source_2 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_2_axis_tdata,
|
||||
tkeep=input_2_axis_tkeep,
|
||||
tvalid=input_2_axis_tvalid,
|
||||
tready=input_2_axis_tready,
|
||||
tlast=input_2_axis_tlast,
|
||||
tuser=input_2_axis_tuser,
|
||||
fifo=source_2_queue,
|
||||
pause=source_2_pause,
|
||||
name='source2')
|
||||
source_3 = axis_ep.AXIStreamSource(clk,
|
||||
rst,
|
||||
tdata=input_3_axis_tdata,
|
||||
tkeep=input_3_axis_tkeep,
|
||||
tvalid=input_3_axis_tvalid,
|
||||
tready=input_3_axis_tready,
|
||||
tlast=input_3_axis_tlast,
|
||||
tuser=input_3_axis_tuser,
|
||||
fifo=source_3_queue,
|
||||
pause=source_3_pause,
|
||||
name='source3')
|
||||
|
||||
sink = axis_ep.AXIStreamSink(clk,
|
||||
rst,
|
||||
tdata=output_axis_tdata,
|
||||
tkeep=output_axis_tkeep,
|
||||
tvalid=output_axis_tvalid,
|
||||
tready=output_axis_tready,
|
||||
tlast=output_axis_tlast,
|
||||
tuser=output_axis_tuser,
|
||||
fifo=sink_queue,
|
||||
pause=sink_pause,
|
||||
name='sink')
|
||||
|
||||
# DUT
|
||||
dut = dut_axis_arb_mux_64_4(clk,
|
||||
rst,
|
||||
current_test,
|
||||
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tkeep,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tready,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tkeep,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tready,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tkeep,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tready,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tkeep,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tready,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
|
||||
output_axis_tdata,
|
||||
output_axis_tkeep,
|
||||
output_axis_tvalid,
|
||||
output_axis_tready,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser)
|
||||
|
||||
@always(delay(4))
|
||||
def clkgen():
|
||||
clk.next = not clk
|
||||
|
||||
@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
|
||||
|
||||
yield clk.posedge
|
||||
print("test 1: port 0")
|
||||
current_test.next = 1
|
||||
|
||||
test_frame = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_0_queue.put(test_frame)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 2: port 1")
|
||||
current_test.next = 2
|
||||
|
||||
test_frame = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 3: back-to-back packets, same port")
|
||||
current_test.next = 3
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x00\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_0_queue.put(test_frame1)
|
||||
source_0_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 4: back-to-back packets, different ports")
|
||||
current_test.next = 4
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 5: alterate pause source")
|
||||
current_test.next = 5
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
source_0_pause.next = True
|
||||
source_1_pause.next = True
|
||||
source_2_pause.next = True
|
||||
source_3_pause.next = True
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
source_0_pause.next = False
|
||||
source_1_pause.next = False
|
||||
source_2_pause.next = False
|
||||
source_3_pause.next = False
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 6: alterate pause sink")
|
||||
current_test.next = 6
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
yield clk.posedge
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
sink_pause.next = True
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
sink_pause.next = False
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
yield clk.posedge
|
||||
print("test 4: back-to-back packets, different ports, arbitration test")
|
||||
current_test.next = 4
|
||||
|
||||
test_frame1 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x01\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
test_frame2 = axis_ep.AXIStreamFrame('\xDA\xD1\xD2\xD3\xD4\xD5' +
|
||||
'\x5A\x02\x52\x53\x54\x55' +
|
||||
'\x80\x00' +
|
||||
'\x00\x01\x02\x03\x04\x05\x06\x07\x08\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10')
|
||||
source_1_queue.put(test_frame1)
|
||||
source_2_queue.put(test_frame2)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
source_1_queue.put(test_frame1)
|
||||
yield clk.posedge
|
||||
|
||||
yield delay(150)
|
||||
yield clk.posedge
|
||||
source_2_queue.put(test_frame2)
|
||||
|
||||
while input_0_axis_tvalid or input_1_axis_tvalid or input_2_axis_tvalid or input_3_axis_tvalid:
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
yield clk.posedge
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame2
|
||||
|
||||
rx_frame = None
|
||||
if not sink_queue.empty():
|
||||
rx_frame = sink_queue.get()
|
||||
|
||||
assert rx_frame == test_frame1
|
||||
|
||||
yield delay(100)
|
||||
|
||||
raise StopSimulation
|
||||
|
||||
return dut, source_0, source_1, source_2, source_3, sink, clkgen, check
|
||||
|
||||
def test_bench():
|
||||
os.chdir(os.path.dirname(os.path.abspath(__file__)))
|
||||
sim = Simulation(bench())
|
||||
sim.run()
|
||||
|
||||
if __name__ == '__main__':
|
||||
print("Running test...")
|
||||
test_bench()
|
||||
|
||||
152
tb/test_axis_arb_mux_64_4.v
Normal file
152
tb/test_axis_arb_mux_64_4.v
Normal file
@ -0,0 +1,152 @@
|
||||
/*
|
||||
|
||||
Copyright (c) 2014 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.
|
||||
|
||||
*/
|
||||
|
||||
// Language: Verilog 2001
|
||||
|
||||
`timescale 1 ns / 1 ps
|
||||
|
||||
module test_axis_arb_mux_64_4;
|
||||
|
||||
// Inputs
|
||||
reg clk = 0;
|
||||
reg rst = 0;
|
||||
reg [7:0] current_test = 0;
|
||||
|
||||
reg [63:0] input_0_axis_tdata = 0;
|
||||
reg [7:0] input_0_axis_tkeep = 0;
|
||||
reg input_0_axis_tvalid = 0;
|
||||
reg input_0_axis_tlast = 0;
|
||||
reg input_0_axis_tuser = 0;
|
||||
reg [63:0] input_1_axis_tdata = 0;
|
||||
reg [7:0] input_1_axis_tkeep = 0;
|
||||
reg input_1_axis_tvalid = 0;
|
||||
reg input_1_axis_tlast = 0;
|
||||
reg input_1_axis_tuser = 0;
|
||||
reg [63:0] input_2_axis_tdata = 0;
|
||||
reg [7:0] input_2_axis_tkeep = 0;
|
||||
reg input_2_axis_tvalid = 0;
|
||||
reg input_2_axis_tlast = 0;
|
||||
reg input_2_axis_tuser = 0;
|
||||
reg [63:0] input_3_axis_tdata = 0;
|
||||
reg [7:0] input_3_axis_tkeep = 0;
|
||||
reg input_3_axis_tvalid = 0;
|
||||
reg input_3_axis_tlast = 0;
|
||||
reg input_3_axis_tuser = 0;
|
||||
|
||||
reg output_axis_tready = 0;
|
||||
|
||||
// Outputs
|
||||
wire input_0_axis_tready;
|
||||
wire input_1_axis_tready;
|
||||
wire input_2_axis_tready;
|
||||
wire input_3_axis_tready;
|
||||
|
||||
wire [63:0] output_axis_tdata;
|
||||
wire [7:0] output_axis_tkeep;
|
||||
wire output_axis_tvalid;
|
||||
wire output_axis_tlast;
|
||||
wire output_axis_tuser;
|
||||
|
||||
initial begin
|
||||
// myhdl integration
|
||||
$from_myhdl(clk,
|
||||
rst,
|
||||
current_test,
|
||||
input_0_axis_tdata,
|
||||
input_0_axis_tkeep,
|
||||
input_0_axis_tvalid,
|
||||
input_0_axis_tlast,
|
||||
input_0_axis_tuser,
|
||||
input_1_axis_tdata,
|
||||
input_1_axis_tkeep,
|
||||
input_1_axis_tvalid,
|
||||
input_1_axis_tlast,
|
||||
input_1_axis_tuser,
|
||||
input_2_axis_tdata,
|
||||
input_2_axis_tkeep,
|
||||
input_2_axis_tvalid,
|
||||
input_2_axis_tlast,
|
||||
input_2_axis_tuser,
|
||||
input_3_axis_tdata,
|
||||
input_3_axis_tkeep,
|
||||
input_3_axis_tvalid,
|
||||
input_3_axis_tlast,
|
||||
input_3_axis_tuser,
|
||||
output_axis_tready);
|
||||
$to_myhdl(input_0_axis_tready,
|
||||
input_1_axis_tready,
|
||||
input_2_axis_tready,
|
||||
input_3_axis_tready,
|
||||
output_axis_tdata,
|
||||
output_axis_tkeep,
|
||||
output_axis_tvalid,
|
||||
output_axis_tlast,
|
||||
output_axis_tuser);
|
||||
|
||||
// dump file
|
||||
$dumpfile("test_axis_arb_mux_64_4.lxt");
|
||||
$dumpvars(0, test_axis_arb_mux_64_4);
|
||||
end
|
||||
|
||||
axis_arb_mux_64_4 #(
|
||||
.DATA_WIDTH(64)
|
||||
)
|
||||
UUT (
|
||||
.clk(clk),
|
||||
.rst(rst),
|
||||
// AXI inputs
|
||||
.input_0_axis_tdata(input_0_axis_tdata),
|
||||
.input_0_axis_tkeep(input_0_axis_tkeep),
|
||||
.input_0_axis_tvalid(input_0_axis_tvalid),
|
||||
.input_0_axis_tready(input_0_axis_tready),
|
||||
.input_0_axis_tlast(input_0_axis_tlast),
|
||||
.input_0_axis_tuser(input_0_axis_tuser),
|
||||
.input_1_axis_tdata(input_1_axis_tdata),
|
||||
.input_1_axis_tkeep(input_1_axis_tkeep),
|
||||
.input_1_axis_tvalid(input_1_axis_tvalid),
|
||||
.input_1_axis_tready(input_1_axis_tready),
|
||||
.input_1_axis_tlast(input_1_axis_tlast),
|
||||
.input_1_axis_tuser(input_1_axis_tuser),
|
||||
.input_2_axis_tdata(input_2_axis_tdata),
|
||||
.input_2_axis_tkeep(input_2_axis_tkeep),
|
||||
.input_2_axis_tvalid(input_2_axis_tvalid),
|
||||
.input_2_axis_tready(input_2_axis_tready),
|
||||
.input_2_axis_tlast(input_2_axis_tlast),
|
||||
.input_2_axis_tuser(input_2_axis_tuser),
|
||||
.input_3_axis_tdata(input_3_axis_tdata),
|
||||
.input_3_axis_tkeep(input_3_axis_tkeep),
|
||||
.input_3_axis_tvalid(input_3_axis_tvalid),
|
||||
.input_3_axis_tready(input_3_axis_tready),
|
||||
.input_3_axis_tlast(input_3_axis_tlast),
|
||||
.input_3_axis_tuser(input_3_axis_tuser),
|
||||
// AXI output
|
||||
.output_axis_tdata(output_axis_tdata),
|
||||
.output_axis_tkeep(output_axis_tkeep),
|
||||
.output_axis_tvalid(output_axis_tvalid),
|
||||
.output_axis_tready(output_axis_tready),
|
||||
.output_axis_tlast(output_axis_tlast),
|
||||
.output_axis_tuser(output_axis_tuser)
|
||||
);
|
||||
|
||||
endmodule
|
||||
Loading…
x
Reference in New Issue
Block a user