| 1 |
35 |
pjf |
--------------------------------------------------------------------------------
|
| 2 |
|
|
-- Company:
|
| 3 |
|
|
-- Engineer:
|
| 4 |
|
|
--
|
| 5 |
|
|
-- Create Date: 12:35:50 05/31/2011
|
| 6 |
|
|
-- Design Name:
|
| 7 |
|
|
-- Module Name: C:/Users/pjf/Documents/projects/fpga/xilinx/Network/arp1/arp_tb.vhd
|
| 8 |
|
|
-- Project Name: arp1
|
| 9 |
|
|
-- Target Device:
|
| 10 |
|
|
-- Tool versions:
|
| 11 |
|
|
-- Description:
|
| 12 |
|
|
--
|
| 13 |
|
|
-- VHDL Test Bench Created by ISE for module: arp
|
| 14 |
|
|
--
|
| 15 |
|
|
-- Dependencies:
|
| 16 |
|
|
--
|
| 17 |
|
|
-- Revision:
|
| 18 |
|
|
-- Revision 0.01 - File Created
|
| 19 |
|
|
-- Additional Comments:
|
| 20 |
|
|
--
|
| 21 |
|
|
-- Notes:
|
| 22 |
|
|
-- This testbench has been automatically generated using types std_logic and
|
| 23 |
|
|
-- std_logic_vector for the ports of the unit under test. Xilinx recommends
|
| 24 |
|
|
-- that these types always be used for the top-level I/O of a design in order
|
| 25 |
|
|
-- to guarantee that the testbench will bind correctly to the post-implementation
|
| 26 |
|
|
-- simulation model.
|
| 27 |
|
|
--------------------------------------------------------------------------------
|
| 28 |
|
|
LIBRARY ieee;
|
| 29 |
|
|
USE ieee.std_logic_1164.ALL;
|
| 30 |
|
|
USE ieee.numeric_std.ALL;
|
| 31 |
|
|
use work.arp_types.all;
|
| 32 |
|
|
|
| 33 |
|
|
ENTITY arp_tb IS
|
| 34 |
|
|
END arp_tb;
|
| 35 |
|
|
|
| 36 |
|
|
ARCHITECTURE behavior OF arp_tb IS
|
| 37 |
|
|
|
| 38 |
|
|
-- Component Declaration for the Unit Under Test (UUT)
|
| 39 |
|
|
|
| 40 |
|
|
COMPONENT arp
|
| 41 |
|
|
PORT(
|
| 42 |
|
|
-- lookup request signals
|
| 43 |
|
|
arp_req_req : in arp_req_req_type;
|
| 44 |
|
|
arp_req_rslt : out arp_req_rslt_type;
|
| 45 |
|
|
-- MAC layer RX signals
|
| 46 |
|
|
data_in_clk : in STD_LOGIC;
|
| 47 |
|
|
reset : in STD_LOGIC;
|
| 48 |
|
|
data_in : in STD_LOGIC_VECTOR (7 downto 0); -- ethernet frame (from dst mac addr through to last byte of frame)
|
| 49 |
|
|
data_in_valid : in STD_LOGIC; -- indicates data_in valid on clock
|
| 50 |
|
|
data_in_last : in STD_LOGIC; -- indicates last data in frame
|
| 51 |
|
|
-- MAC layer TX signals
|
| 52 |
|
|
mac_tx_req : out std_logic; -- indicates that ip wants access to channel (stays up for as long as tx)
|
| 53 |
|
|
mac_tx_granted : in std_logic; -- indicates that access to channel has been granted
|
| 54 |
|
|
data_out_clk : in std_logic;
|
| 55 |
|
|
data_out_ready : in std_logic; -- indicates system ready to consume data
|
| 56 |
|
|
data_out_valid : out std_logic; -- indicates data out is valid
|
| 57 |
|
|
data_out_last : out std_logic; -- with data out valid indicates the last byte of a frame
|
| 58 |
|
|
data_out : out std_logic_vector (7 downto 0); -- ethernet frame (from dst mac addr through to last byte of frame)
|
| 59 |
|
|
-- system signals
|
| 60 |
|
|
our_mac_address : in STD_LOGIC_VECTOR (47 downto 0);
|
| 61 |
|
|
our_ip_address : in STD_LOGIC_VECTOR (31 downto 0);
|
| 62 |
|
|
req_count : out STD_LOGIC_VECTOR(7 downto 0) -- count of arp pkts received
|
| 63 |
|
|
);
|
| 64 |
|
|
END COMPONENT;
|
| 65 |
|
|
|
| 66 |
|
|
|
| 67 |
|
|
--Inputs
|
| 68 |
|
|
signal clk : std_logic := '0';
|
| 69 |
|
|
signal reset : std_logic := '0';
|
| 70 |
|
|
signal data_in : std_logic_vector(7 downto 0) := (others => '0');
|
| 71 |
|
|
signal data_in_valid : std_logic := '0';
|
| 72 |
|
|
signal data_in_last : std_logic := '0';
|
| 73 |
|
|
signal our_mac_address : std_logic_vector(47 downto 0) := (others => '0');
|
| 74 |
|
|
signal our_ip_address : std_logic_vector(31 downto 0) := (others => '0');
|
| 75 |
|
|
signal data_out_ready : std_logic;
|
| 76 |
|
|
signal data_out_valid : std_logic;
|
| 77 |
|
|
signal data_out_last : std_logic;
|
| 78 |
|
|
signal data_out : std_logic_vector (7 downto 0);
|
| 79 |
|
|
signal req_count : STD_LOGIC_VECTOR(7 downto 0);
|
| 80 |
|
|
signal arp_req_req : arp_req_req_type;
|
| 81 |
|
|
signal arp_req_rslt : arp_req_rslt_type;
|
| 82 |
|
|
signal mac_tx_req : std_logic;
|
| 83 |
|
|
signal mac_tx_granted : std_logic;
|
| 84 |
|
|
|
| 85 |
|
|
|
| 86 |
|
|
-- Clock period definitions
|
| 87 |
|
|
constant clk_period : time := 8 ns;
|
| 88 |
|
|
|
| 89 |
|
|
BEGIN
|
| 90 |
|
|
|
| 91 |
|
|
-- Instantiate the Unit Under Test (UUT)
|
| 92 |
|
|
uut: arp PORT MAP (
|
| 93 |
|
|
-- lookup request mappings
|
| 94 |
|
|
arp_req_req => arp_req_req,
|
| 95 |
|
|
arp_req_rslt => arp_req_rslt,
|
| 96 |
|
|
-- rx mappings
|
| 97 |
|
|
data_in_clk => clk,
|
| 98 |
|
|
reset => reset,
|
| 99 |
|
|
data_in => data_in,
|
| 100 |
|
|
data_in_valid => data_in_valid,
|
| 101 |
|
|
data_in_last => data_in_last,
|
| 102 |
|
|
-- tx mappings
|
| 103 |
|
|
mac_tx_req => mac_tx_req,
|
| 104 |
|
|
mac_tx_granted => mac_tx_granted,
|
| 105 |
|
|
data_out_clk => clk,
|
| 106 |
|
|
data_out_ready => data_out_ready,
|
| 107 |
|
|
data_out_valid => data_out_valid,
|
| 108 |
|
|
data_out_last => data_out_last,
|
| 109 |
|
|
data_out => data_out,
|
| 110 |
|
|
-- system mappings
|
| 111 |
|
|
our_mac_address => our_mac_address,
|
| 112 |
|
|
our_ip_address => our_ip_address,
|
| 113 |
|
|
req_count => req_count
|
| 114 |
|
|
);
|
| 115 |
|
|
|
| 116 |
|
|
-- Clock process definitions
|
| 117 |
|
|
clk_process :process
|
| 118 |
|
|
begin
|
| 119 |
|
|
clk <= '0';
|
| 120 |
|
|
wait for clk_period/2;
|
| 121 |
|
|
clk <= '1';
|
| 122 |
|
|
wait for clk_period/2;
|
| 123 |
|
|
end process;
|
| 124 |
|
|
|
| 125 |
|
|
|
| 126 |
|
|
-- Stimulus process
|
| 127 |
|
|
stim_proc: process
|
| 128 |
|
|
begin
|
| 129 |
|
|
-- hold reset state for 100 ns.
|
| 130 |
|
|
wait for 100 ns;
|
| 131 |
|
|
|
| 132 |
|
|
our_ip_address <= x"c0a80509"; -- 192.168.5.9
|
| 133 |
|
|
our_mac_address <= x"002320212223";
|
| 134 |
|
|
mac_tx_granted <= '1'; -- FIXME 0
|
| 135 |
|
|
|
| 136 |
|
|
reset <= '1';
|
| 137 |
|
|
wait for clk_period*10;
|
| 138 |
|
|
reset <= '0';
|
| 139 |
|
|
wait for clk_period*5;
|
| 140 |
|
|
|
| 141 |
|
|
assert mac_tx_req = '0' report "mac_tx_req asserted on reset";
|
| 142 |
|
|
|
| 143 |
|
|
-- insert stimulus here
|
| 144 |
|
|
arp_req_req.lookup_req <= '0';
|
| 145 |
|
|
arp_req_req.ip <= (others => '0');
|
| 146 |
|
|
data_out_ready <= '1';
|
| 147 |
|
|
|
| 148 |
|
|
report "T1: Send an ARP request: who has 192.168.5.8? Tell 192.168.5.1";
|
| 149 |
|
|
data_in_valid <= '1';
|
| 150 |
|
|
-- dst MAC (bc)
|
| 151 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 152 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 153 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 154 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 155 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 156 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 157 |
|
|
-- src MAC
|
| 158 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 159 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 160 |
|
|
data_in <= x"18"; wait for clk_period;
|
| 161 |
|
|
data_in <= x"29"; wait for clk_period;
|
| 162 |
|
|
data_in <= x"26"; wait for clk_period;
|
| 163 |
|
|
data_in <= x"7c"; wait for clk_period;
|
| 164 |
|
|
-- type
|
| 165 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 166 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 167 |
|
|
-- HW type
|
| 168 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 169 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 170 |
|
|
-- Protocol type
|
| 171 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 172 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 173 |
|
|
-- HW size
|
| 174 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 175 |
|
|
-- protocol size
|
| 176 |
|
|
data_in <= x"04"; wait for clk_period;
|
| 177 |
|
|
-- Opcode
|
| 178 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 179 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 180 |
|
|
-- Sender MAC
|
| 181 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 182 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 183 |
|
|
data_in <= x"18"; wait for clk_period;
|
| 184 |
|
|
data_in <= x"29"; wait for clk_period;
|
| 185 |
|
|
data_in <= x"26"; wait for clk_period;
|
| 186 |
|
|
data_in <= x"7c"; wait for clk_period;
|
| 187 |
|
|
-- Sender IP
|
| 188 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 189 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 190 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 191 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 192 |
|
|
-- Target MAC
|
| 193 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 194 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 195 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 196 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 197 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 198 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 199 |
|
|
-- Target IP
|
| 200 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 201 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 202 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 203 |
|
|
data_in <= x"09"; wait for clk_period;
|
| 204 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 205 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 206 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 207 |
|
|
data_in_last <= '1';
|
| 208 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 209 |
|
|
data_in_last <= '0';
|
| 210 |
|
|
data_in_valid <= '0';
|
| 211 |
|
|
|
| 212 |
|
|
-- check tx arbitration signals
|
| 213 |
|
|
|
| 214 |
|
|
assert mac_tx_req = '1' report "T1: mac_tx_req not set";
|
| 215 |
|
|
|
| 216 |
|
|
-- ready to tx
|
| 217 |
|
|
data_out_ready <= '1';
|
| 218 |
|
|
mac_tx_granted <= '1';
|
| 219 |
|
|
wait for clk_period*10;
|
| 220 |
|
|
data_out_ready <= '0';
|
| 221 |
|
|
wait for clk_period*2;
|
| 222 |
|
|
data_out_ready <= '1';
|
| 223 |
|
|
wait for clk_period*50;
|
| 224 |
|
|
|
| 225 |
|
|
report "T2: Send another ARP request: who has 192.168.5.8? Tell 192.168.5.1, holding off transmitter";
|
| 226 |
|
|
data_out_ready <= '0';
|
| 227 |
|
|
data_in_valid <= '1';
|
| 228 |
|
|
-- dst MAC (bc)
|
| 229 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 230 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 231 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 232 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 233 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 234 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 235 |
|
|
-- src MAC
|
| 236 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 237 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 238 |
|
|
data_in <= x"18"; wait for clk_period;
|
| 239 |
|
|
data_in <= x"29"; wait for clk_period;
|
| 240 |
|
|
data_in <= x"26"; wait for clk_period;
|
| 241 |
|
|
data_in <= x"7c"; wait for clk_period;
|
| 242 |
|
|
-- type
|
| 243 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 244 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 245 |
|
|
-- HW type
|
| 246 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 247 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 248 |
|
|
-- Protocol type
|
| 249 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 250 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 251 |
|
|
-- HW size
|
| 252 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 253 |
|
|
-- protocol size
|
| 254 |
|
|
data_in <= x"04"; wait for clk_period;
|
| 255 |
|
|
-- Opcode
|
| 256 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 257 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 258 |
|
|
-- Sender MAC
|
| 259 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 260 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 261 |
|
|
data_in <= x"18"; wait for clk_period;
|
| 262 |
|
|
data_in <= x"29"; wait for clk_period;
|
| 263 |
|
|
data_in <= x"26"; wait for clk_period;
|
| 264 |
|
|
data_in <= x"7c"; wait for clk_period;
|
| 265 |
|
|
-- Sender IP
|
| 266 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 267 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 268 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 269 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 270 |
|
|
-- Target MAC
|
| 271 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 272 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 273 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 274 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 275 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 276 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 277 |
|
|
-- Target IP
|
| 278 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 279 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 280 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 281 |
|
|
data_in <= x"09"; wait for clk_period;
|
| 282 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 283 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 284 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 285 |
|
|
data_in_last <= '1';
|
| 286 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 287 |
|
|
data_in_last <= '0';
|
| 288 |
|
|
data_in_valid <= '0';
|
| 289 |
|
|
|
| 290 |
|
|
-- ready to tx
|
| 291 |
|
|
wait for clk_period*10;
|
| 292 |
|
|
data_out_ready <= '1';
|
| 293 |
|
|
|
| 294 |
|
|
wait for clk_period*50;
|
| 295 |
|
|
|
| 296 |
|
|
-- Send a request for the IP that is already cached
|
| 297 |
|
|
arp_req_req.ip <= x"c0a80501";
|
| 298 |
|
|
arp_req_req.lookup_req <= '1';
|
| 299 |
|
|
wait for clk_period;
|
| 300 |
|
|
arp_req_req.lookup_req <= '0';
|
| 301 |
|
|
|
| 302 |
|
|
wait for clk_period*50;
|
| 303 |
|
|
|
| 304 |
|
|
-- Send a request for the IP that is not cached
|
| 305 |
|
|
arp_req_req.ip <= x"c0a80503";
|
| 306 |
|
|
arp_req_req.lookup_req <= '1';
|
| 307 |
|
|
wait for clk_period;
|
| 308 |
|
|
arp_req_req.lookup_req <= '0';
|
| 309 |
|
|
wait for clk_period*80;
|
| 310 |
|
|
-- Send the reply
|
| 311 |
|
|
data_out_ready <= '1';
|
| 312 |
|
|
|
| 313 |
|
|
report "T3: Send an ARP reply: 192.168.5.3 has mac 02:12:03:23:04:54";
|
| 314 |
|
|
data_in_valid <= '1';
|
| 315 |
|
|
-- dst MAC (bc)
|
| 316 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 317 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 318 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 319 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 320 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 321 |
|
|
data_in <= x"ff"; wait for clk_period;
|
| 322 |
|
|
-- src MAC
|
| 323 |
|
|
data_in <= x"02"; wait for clk_period;
|
| 324 |
|
|
data_in <= x"12"; wait for clk_period;
|
| 325 |
|
|
data_in <= x"03"; wait for clk_period;
|
| 326 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 327 |
|
|
data_in <= x"04"; wait for clk_period;
|
| 328 |
|
|
data_in <= x"54"; wait for clk_period;
|
| 329 |
|
|
-- type
|
| 330 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 331 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 332 |
|
|
-- HW type
|
| 333 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 334 |
|
|
data_in <= x"01"; wait for clk_period;
|
| 335 |
|
|
-- Protocol type
|
| 336 |
|
|
data_in <= x"08"; wait for clk_period;
|
| 337 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 338 |
|
|
-- HW size
|
| 339 |
|
|
data_in <= x"06"; wait for clk_period;
|
| 340 |
|
|
-- protocol size
|
| 341 |
|
|
data_in <= x"04"; wait for clk_period;
|
| 342 |
|
|
-- Opcode
|
| 343 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 344 |
|
|
data_in <= x"02"; wait for clk_period;
|
| 345 |
|
|
-- Sender MAC
|
| 346 |
|
|
data_in <= x"02"; wait for clk_period;
|
| 347 |
|
|
data_in <= x"12"; wait for clk_period;
|
| 348 |
|
|
data_in <= x"03"; wait for clk_period;
|
| 349 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 350 |
|
|
data_in <= x"04"; wait for clk_period;
|
| 351 |
|
|
data_in <= x"54"; wait for clk_period;
|
| 352 |
|
|
-- Sender IP
|
| 353 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 354 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 355 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 356 |
|
|
data_in <= x"03"; wait for clk_period;
|
| 357 |
|
|
-- Target MAC
|
| 358 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 359 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 360 |
|
|
data_in <= x"20"; wait for clk_period;
|
| 361 |
|
|
data_in <= x"21"; wait for clk_period;
|
| 362 |
|
|
data_in <= x"22"; wait for clk_period;
|
| 363 |
|
|
data_in <= x"23"; wait for clk_period;
|
| 364 |
|
|
-- Target IP
|
| 365 |
|
|
data_in <= x"c0"; wait for clk_period;
|
| 366 |
|
|
data_in <= x"a8"; wait for clk_period;
|
| 367 |
|
|
data_in <= x"05"; wait for clk_period;
|
| 368 |
|
|
data_in <= x"09"; wait for clk_period;
|
| 369 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 370 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 371 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 372 |
|
|
data_in_last <= '1';
|
| 373 |
|
|
data_in <= x"00"; wait for clk_period;
|
| 374 |
|
|
data_in_last <= '0';
|
| 375 |
|
|
data_in_valid <= '0';
|
| 376 |
|
|
|
| 377 |
|
|
report "--- end of tests ---";
|
| 378 |
|
|
wait;
|
| 379 |
|
|
end process;
|
| 380 |
|
|
|
| 381 |
|
|
END;
|
