| 1 |
2 |
acastong |
//flow_control_l2_tb.cpp
|
| 2 |
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
| 3 |
|
|
* Version: MPL 1.1
|
| 4 |
|
|
*
|
| 5 |
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
| 6 |
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
| 7 |
|
|
* the License. You may obtain a copy of the License at
|
| 8 |
|
|
* http://www.mozilla.org/MPL/
|
| 9 |
|
|
*
|
| 10 |
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
| 11 |
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
| 12 |
|
|
* for the specific language governing rights and limitations under the
|
| 13 |
|
|
* License.
|
| 14 |
|
|
*
|
| 15 |
|
|
* The Original Code is HyperTransport Tunnel IP Core.
|
| 16 |
|
|
*
|
| 17 |
|
|
* The Initial Developer of the Original Code is
|
| 18 |
|
|
* Ecole Polytechnique de Montreal.
|
| 19 |
|
|
* Portions created by the Initial Developer are Copyright (C) 2005
|
| 20 |
|
|
* the Initial Developer. All Rights Reserved.
|
| 21 |
|
|
*
|
| 22 |
|
|
* Contributor(s):
|
| 23 |
|
|
* Ami Castonguay <acastong@grm.polymtl.ca>
|
| 24 |
|
|
*
|
| 25 |
|
|
* Alternatively, the contents of this file may be used under the terms
|
| 26 |
|
|
* of the Polytechnique HyperTransport Tunnel IP Core Source Code License
|
| 27 |
|
|
* (the "PHTICSCL License", see the file PHTICSCL.txt), in which case the
|
| 28 |
|
|
* provisions of PHTICSCL License are applicable instead of those
|
| 29 |
|
|
* above. If you wish to allow use of your version of this file only
|
| 30 |
|
|
* under the terms of the PHTICSCL License and not to allow others to use
|
| 31 |
|
|
* your version of this file under the MPL, indicate your decision by
|
| 32 |
|
|
* deleting the provisions above and replace them with the notice and
|
| 33 |
|
|
* other provisions required by the PHTICSCL License. If you do not delete
|
| 34 |
|
|
* the provisions above, a recipient may use your version of this file
|
| 35 |
|
|
* under either the MPL or the PHTICSCL License."
|
| 36 |
|
|
*
|
| 37 |
|
|
* ***** END LICENSE BLOCK ***** */
|
| 38 |
|
|
|
| 39 |
|
|
#include "flow_control_l2_tb.h"
|
| 40 |
|
|
#include <sstream>
|
| 41 |
|
|
|
| 42 |
|
|
using namespace std;
|
| 43 |
|
|
|
| 44 |
|
|
const unsigned flow_control_l2_tb::next_node_databuffers_maximum[3] = {8,8,8};
|
| 45 |
|
|
const unsigned flow_control_l2_tb::next_node_buffers_maximum[3] = {8,8,8};
|
| 46 |
|
|
const int flow_control_l2_tb::nop_counter_delay = NOP_COUNTER_DELAY;
|
| 47 |
|
|
|
| 48 |
|
|
flow_control_l2_tb::flow_control_l2_tb(sc_module_name name){
|
| 49 |
|
|
SC_THREAD(simulate_memory);
|
| 50 |
|
|
sensitive_pos(clk);
|
| 51 |
|
|
|
| 52 |
|
|
SC_THREAD(produce_inputs);
|
| 53 |
|
|
sensitive_pos(clk);
|
| 54 |
|
|
|
| 55 |
|
|
//verify_output() MUST run after produce_inputs,
|
| 56 |
|
|
//so wait for it to produce an event instead of being sensitive to clock
|
| 57 |
|
|
SC_THREAD(verify_output);
|
| 58 |
|
|
sensitive(input_produced);
|
| 59 |
|
|
|
| 60 |
|
|
SC_THREAD(control_testbench);
|
| 61 |
|
|
sensitive_pos(clk);
|
| 62 |
|
|
|
| 63 |
|
|
srand(1987);
|
| 64 |
|
|
error = false;
|
| 65 |
|
|
|
| 66 |
|
|
for(int n = 0; n < 10; n++)
|
| 67 |
|
|
nop_delay[n].nop_received = false;
|
| 68 |
|
|
}
|
| 69 |
|
|
|
| 70 |
|
|
void flow_control_l2_tb::simulate_memory(){
|
| 71 |
|
|
while(true){
|
| 72 |
|
|
history_memory_output = history_memory[(int)history_memory_read_address.read()];
|
| 73 |
|
|
if(history_memory_write.read())
|
| 74 |
|
|
history_memory[(unsigned)history_memory_write_address.read()] =
|
| 75 |
|
|
(unsigned)(sc_uint<32>)history_memory_write_data.read();
|
| 76 |
|
|
wait();
|
| 77 |
|
|
}
|
| 78 |
|
|
}
|
| 79 |
|
|
|
| 80 |
|
|
void flow_control_l2_tb::control_testbench(){
|
| 81 |
|
|
lk_rx_connected = true;
|
| 82 |
|
|
percent_chance_from_eh = 0;
|
| 83 |
|
|
percent_chance_from_csr = 0;
|
| 84 |
|
|
percent_chance_from_fwd = 0;
|
| 85 |
|
|
percent_chance_from_ui = 0;
|
| 86 |
|
|
|
| 87 |
|
|
percent_chance_nop_req_db = 0;
|
| 88 |
|
|
percent_chance_nop_req_ro = 0;
|
| 89 |
|
|
|
| 90 |
|
|
percent_chance_nop_received = 0;
|
| 91 |
|
|
|
| 92 |
|
|
ldtstopx = true;
|
| 93 |
|
|
resetx = false;
|
| 94 |
|
|
csr_retry = true;
|
| 95 |
|
|
for(int n = 0; n < 3; n++) wait();
|
| 96 |
|
|
if(error) return;
|
| 97 |
|
|
resetx = true;
|
| 98 |
|
|
|
| 99 |
|
|
percent_chance_from_eh = 20;
|
| 100 |
|
|
percent_chance_from_csr = 40;
|
| 101 |
|
|
percent_chance_from_fwd = 60;
|
| 102 |
|
|
percent_chance_from_ui = 7;
|
| 103 |
|
|
|
| 104 |
|
|
percent_chance_nop_req_db = 8;
|
| 105 |
|
|
percent_chance_nop_req_ro = 8;
|
| 106 |
|
|
|
| 107 |
|
|
percent_chance_nop_received = 15;
|
| 108 |
|
|
|
| 109 |
|
|
for(int n = 0; n < 65; n++) wait();
|
| 110 |
|
|
if(error) return;
|
| 111 |
|
|
cd_initiate_retry_disconnect = true;
|
| 112 |
|
|
wait();
|
| 113 |
|
|
cd_initiate_retry_disconnect = false;
|
| 114 |
|
|
|
| 115 |
|
|
for(int n = 0; n < 20; n++) wait();
|
| 116 |
|
|
|
| 117 |
|
|
lk_rx_connected = false;
|
| 118 |
|
|
for(int n = 0; n < 5; n++) wait();
|
| 119 |
|
|
lk_rx_connected = true;
|
| 120 |
|
|
|
| 121 |
|
|
}
|
| 122 |
|
|
|
| 123 |
|
|
void flow_control_l2_tb::produce_inputs(){
|
| 124 |
|
|
sc_bv<32> cmd;
|
| 125 |
|
|
|
| 126 |
|
|
////////////////////////////////////////////////
|
| 127 |
|
|
//Generate a packet from the different sources
|
| 128 |
|
|
//Output them, but don't make them available yet
|
| 129 |
|
|
/////////////////////////////////////////////////
|
| 130 |
|
|
|
| 131 |
|
|
//Output Error handler packet
|
| 132 |
|
|
generate_random_response(cmd,data_left_eh);
|
| 133 |
|
|
eh_cmd_data_fc = cmd;
|
| 134 |
|
|
eh_available_fc = false;
|
| 135 |
|
|
|
| 136 |
|
|
//Output CSR packet
|
| 137 |
|
|
generate_random_response(cmd,data_left_csr);
|
| 138 |
|
|
csr_dword_fc = cmd;
|
| 139 |
|
|
csr_available_fc = false;
|
| 140 |
|
|
|
| 141 |
|
|
//Output UI packet
|
| 142 |
|
|
sc_bv<64> pkt;
|
| 143 |
|
|
unsigned datalength;
|
| 144 |
|
|
VirtualChannel ui_vc = VC_NONE;
|
| 145 |
|
|
ui_packet_fc = 0;
|
| 146 |
|
|
ui_available_fc = false;
|
| 147 |
|
|
|
| 148 |
|
|
|
| 149 |
|
|
//OutputFWD packet
|
| 150 |
|
|
syn_ControlPacketComplete pkt_complete;
|
| 151 |
|
|
VirtualChannel fwd_vc = generate_random_packet(pkt,datalength);
|
| 152 |
|
|
//Not used by flow_control_l3, so any value is ok. The state machine reads
|
| 153 |
|
|
//the chain bit off of the packet if needed
|
| 154 |
|
|
pkt_complete.isPartOfChain = false;
|
| 155 |
|
|
pkt_complete.packet = pkt;
|
| 156 |
|
|
pkt_complete.error64BitExtension = false;
|
| 157 |
|
|
pkt_complete.data_address = rand();
|
| 158 |
|
|
|
| 159 |
|
|
ro_packet_fwd = pkt_complete;
|
| 160 |
|
|
ro_packet_vc_fwd = fwd_vc;
|
| 161 |
|
|
ro_available_fwd = false;
|
| 162 |
|
|
|
| 163 |
|
|
unsigned data_sent_ui = 0;
|
| 164 |
|
|
|
| 165 |
|
|
crc1 = 0xFFFFFFFF;
|
| 166 |
|
|
crc2 = 0xFFFFFFFF;
|
| 167 |
|
|
|
| 168 |
|
|
int retry_sequence_count = 0;
|
| 169 |
|
|
|
| 170 |
|
|
|
| 171 |
|
|
//////////////////////////////////////
|
| 172 |
|
|
// Misc init
|
| 173 |
|
|
//////////////////////////////////////
|
| 174 |
|
|
current_user_data_vc = VC_NONE;
|
| 175 |
|
|
current_user_data_vc_output = VC_NONE;
|
| 176 |
|
|
fc_status = FC_NONE;
|
| 177 |
|
|
|
| 178 |
|
|
cd_rx_next_pkt_to_ack_fc = 0;
|
| 179 |
|
|
data_sent_db = 0;
|
| 180 |
|
|
|
| 181 |
|
|
wait();
|
| 182 |
|
|
while(!error){
|
| 183 |
|
|
|
| 184 |
|
|
/////////////////////////////////////////////////////
|
| 185 |
|
|
// Handle sending packets from the different sources
|
| 186 |
|
|
/////////////////////////////////////////////////////
|
| 187 |
|
|
|
| 188 |
|
|
//Randomly set if input data is available
|
| 189 |
|
|
eh_available_fc = (rand() % 100 < percent_chance_from_eh) || fc_status == FC_SENDING_EH;
|
| 190 |
|
|
csr_available_fc = (rand() % 100 < percent_chance_from_csr) || fc_status == FC_SENDING_CSR;
|
| 191 |
|
|
ro_available_fwd = rand() % 100 < percent_chance_from_fwd;
|
| 192 |
|
|
|
| 193 |
|
|
//If reading data from errorhandler, add it to the queue of expected output dword
|
| 194 |
|
|
if(fc_ack_eh.read() && resetx.read()){
|
| 195 |
|
|
if(fc_status != FC_SENDING_EH && fc_status != FC_NONE){
|
| 196 |
|
|
cout << "ERROR: Reading EH while other task not done" <<endl;
|
| 197 |
|
|
cout << "fc_status: " << fc_status << endl;
|
| 198 |
|
|
error = true; continue;
|
| 199 |
|
|
}
|
| 200 |
|
|
|
| 201 |
|
|
OutputDword expected;
|
| 202 |
|
|
expected.dword = eh_cmd_data_fc.read();
|
| 203 |
|
|
if(fc_status == FC_NONE){
|
| 204 |
|
|
expected.lctl = true; expected.hctl = true;
|
| 205 |
|
|
}
|
| 206 |
|
|
else{
|
| 207 |
|
|
expected.lctl = false; expected.hctl = false;
|
| 208 |
|
|
}
|
| 209 |
|
|
expected_output.push_back(expected);
|
| 210 |
|
|
|
| 211 |
|
|
if(data_left_eh){
|
| 212 |
|
|
data_left_eh--;
|
| 213 |
|
|
getRandomVector(cmd);
|
| 214 |
|
|
eh_cmd_data_fc = cmd;
|
| 215 |
|
|
fc_status = FC_SENDING_EH;
|
| 216 |
|
|
|
| 217 |
|
|
//In retry mode, calculate the CRC of the packet
|
| 218 |
|
|
if(csr_retry.read()){
|
| 219 |
|
|
bool command = (crc2 == 0xFFFFFFFF);
|
| 220 |
|
|
calculate_crc2(eh_cmd_data_fc.read(),command, command);
|
| 221 |
|
|
}
|
| 222 |
|
|
}
|
| 223 |
|
|
else{
|
| 224 |
|
|
//In retry mode, expect a following CRC
|
| 225 |
|
|
if(csr_retry.read()){
|
| 226 |
|
|
if(crc2 != 0xFFFFFFFF){
|
| 227 |
|
|
calculate_crc2(eh_cmd_data_fc.read(),false, false);
|
| 228 |
|
|
expected.dword = ~crc2;
|
| 229 |
|
|
expected.lctl = false; expected.hctl = true;
|
| 230 |
|
|
crc2 = 0xFFFFFFFF;
|
| 231 |
|
|
}
|
| 232 |
|
|
else{
|
| 233 |
|
|
calculate_crc1(eh_cmd_data_fc.read(),true, true);
|
| 234 |
|
|
expected.dword = ~crc1;
|
| 235 |
|
|
expected.lctl = true; expected.hctl = false;
|
| 236 |
|
|
crc1 = 0xFFFFFFFF;
|
| 237 |
|
|
}
|
| 238 |
|
|
expected_output.push_back(expected);
|
| 239 |
|
|
}
|
| 240 |
|
|
|
| 241 |
|
|
//When packet done being sent, generate a new one
|
| 242 |
|
|
generate_random_response(cmd,data_left_eh);
|
| 243 |
|
|
eh_cmd_data_fc = cmd;
|
| 244 |
|
|
fc_status = FC_NONE;
|
| 245 |
|
|
}
|
| 246 |
|
|
}
|
| 247 |
|
|
|
| 248 |
|
|
//If reading data from CSR, add it to the queue of expected output dword
|
| 249 |
|
|
if(fc_ack_csr.read() && resetx.read()){
|
| 250 |
|
|
if(fc_status != FC_SENDING_CSR && fc_status != FC_NONE){
|
| 251 |
|
|
cout << "ERROR: Reading CSR while other task not done" <<endl;
|
| 252 |
|
|
cout << "Current status: " << fc_status << endl;
|
| 253 |
|
|
error = true; continue;
|
| 254 |
|
|
}
|
| 255 |
|
|
|
| 256 |
|
|
OutputDword expected;
|
| 257 |
|
|
expected.dword = csr_dword_fc.read();
|
| 258 |
|
|
if(fc_status == FC_NONE){
|
| 259 |
|
|
expected.lctl = true; expected.hctl = true;
|
| 260 |
|
|
}
|
| 261 |
|
|
else{
|
| 262 |
|
|
expected.lctl = false; expected.hctl = false;
|
| 263 |
|
|
}
|
| 264 |
|
|
expected_output.push_back(expected);
|
| 265 |
|
|
|
| 266 |
|
|
if(data_left_csr){
|
| 267 |
|
|
data_left_csr--;
|
| 268 |
|
|
getRandomVector(cmd);
|
| 269 |
|
|
csr_dword_fc = cmd;
|
| 270 |
|
|
fc_status = FC_SENDING_CSR;
|
| 271 |
|
|
|
| 272 |
|
|
//In retry mode, calculate the CRC of the packet
|
| 273 |
|
|
if(csr_retry.read()){
|
| 274 |
|
|
bool command = (crc2 == 0xFFFFFFFF);
|
| 275 |
|
|
calculate_crc2(csr_dword_fc.read(),command, command);
|
| 276 |
|
|
}
|
| 277 |
|
|
}
|
| 278 |
|
|
else{
|
| 279 |
|
|
//In retry mode, expect a following CRC
|
| 280 |
|
|
if(csr_retry.read()){
|
| 281 |
|
|
if(crc2 != 0xFFFFFFFF){
|
| 282 |
|
|
calculate_crc2(csr_dword_fc.read(),false, false);
|
| 283 |
|
|
expected.dword = ~crc2;
|
| 284 |
|
|
expected.lctl = false; expected.hctl = true;
|
| 285 |
|
|
crc2 = 0xFFFFFFFF;
|
| 286 |
|
|
}
|
| 287 |
|
|
else{
|
| 288 |
|
|
calculate_crc1(csr_dword_fc.read(),true, true);
|
| 289 |
|
|
expected.dword = ~crc1;
|
| 290 |
|
|
expected.lctl = true; expected.hctl = false;
|
| 291 |
|
|
crc1 = 0xFFFFFFFF;
|
| 292 |
|
|
}
|
| 293 |
|
|
expected_output.push_back(expected);
|
| 294 |
|
|
}
|
| 295 |
|
|
generate_random_response(cmd,data_left_csr);
|
| 296 |
|
|
csr_dword_fc = cmd;
|
| 297 |
|
|
fc_status = FC_NONE;
|
| 298 |
|
|
}
|
| 299 |
|
|
}
|
| 300 |
|
|
|
| 301 |
|
|
|
| 302 |
|
|
//If reading data from command buffers, add it to the queue of expected output dword
|
| 303 |
|
|
if(fwd_ack_ro.read() && resetx.read()){
|
| 304 |
|
|
if(fc_status != FC_NONE){
|
| 305 |
|
|
cout << "ERROR: Reading FWD command while other task not done" <<endl;
|
| 306 |
|
|
cout << " - fc_status=" << fc_status << endl;
|
| 307 |
|
|
error = true; continue;
|
| 308 |
|
|
}
|
| 309 |
|
|
|
| 310 |
|
|
OutputDword expected;
|
| 311 |
|
|
expected.dword = ro_packet_fwd.read().packet.range(31,0);
|
| 312 |
|
|
expected.lctl = true; expected.hctl = true;
|
| 313 |
|
|
expected_output.push_back(expected);
|
| 314 |
|
|
|
| 315 |
|
|
PacketCommand cmd = getPacketCommand(ro_packet_fwd.read().packet.range(5,0));
|
| 316 |
|
|
bool current_dword = isDwordPacket(ro_packet_fwd.read().packet,cmd);
|
| 317 |
|
|
bool current_data = hasDataAssociated(cmd);
|
| 318 |
|
|
int current_datalength = (int)getDataLengthm1(ro_packet_fwd.read().packet) + 1;
|
| 319 |
|
|
VirtualChannel current_vc = getVirtualChannel(ro_packet_fwd.read().packet,cmd);
|
| 320 |
|
|
|
| 321 |
|
|
if(!current_dword){
|
| 322 |
|
|
expected.dword = ro_packet_fwd.read().packet.range(63,32);
|
| 323 |
|
|
expected_output.push_back(expected);
|
| 324 |
|
|
}
|
| 325 |
|
|
|
| 326 |
|
|
if(current_datalength){
|
| 327 |
|
|
sc_uint<4> addr = ro_packet_fwd.read().data_address;
|
| 328 |
|
|
update_databuffer_entry(current_datalength,current_vc,addr);
|
| 329 |
|
|
}
|
| 330 |
|
|
|
| 331 |
|
|
fwd_vc = generate_random_packet(pkt,datalength);
|
| 332 |
|
|
//Not used by flow_control_l3, so any value is ok. The state machine reads
|
| 333 |
|
|
//the chain bit off of the packet if needed
|
| 334 |
|
|
pkt_complete.packet = pkt;
|
| 335 |
|
|
pkt_complete.data_address = rand();
|
| 336 |
|
|
|
| 337 |
|
|
//In retry mode, calculate the CRC of the packet
|
| 338 |
|
|
if(csr_retry.read()){
|
| 339 |
|
|
//If it is a command packet with associated data, the CRC will also
|
| 340 |
|
|
//need to be calculated from the data packet, so don't add the CRC to
|
| 341 |
|
|
//the expected queue just yet
|
| 342 |
|
|
if(current_data){
|
| 343 |
|
|
calculate_crc2(ro_packet_fwd.read().packet.range(31,0),true, true);
|
| 344 |
|
|
if(!current_dword)
|
| 345 |
|
|
calculate_crc2(ro_packet_fwd.read().packet.range(63,32),true, true);
|
| 346 |
|
|
}
|
| 347 |
|
|
else{
|
| 348 |
|
|
//If it is a command packet without associated data, expect a following CRC
|
| 349 |
|
|
calculate_crc1(ro_packet_fwd.read().packet.range(31,0),true, true);
|
| 350 |
|
|
if(!current_dword)
|
| 351 |
|
|
calculate_crc1(ro_packet_fwd.read().packet.range(63,32),true, true);
|
| 352 |
|
|
expected.dword = ~crc1;
|
| 353 |
|
|
expected.lctl = true; expected.hctl = false;
|
| 354 |
|
|
crc1 = 0xFFFFFFFF;
|
| 355 |
|
|
expected_output.push_back(expected);
|
| 356 |
|
|
}
|
| 357 |
|
|
}
|
| 358 |
|
|
if(current_data)
|
| 359 |
|
|
fc_status = FC_SENDING_FWD;
|
| 360 |
|
|
|
| 361 |
|
|
ro_packet_fwd = pkt_complete;
|
| 362 |
|
|
ro_packet_vc_fwd = fwd_vc;
|
| 363 |
|
|
}
|
| 364 |
|
|
|
| 365 |
|
|
|
| 366 |
|
|
///////////////////////////////////////////////////////////////////////////////
|
| 367 |
|
|
//Packets from UI work a bit differently. It's a write in a FIFO and we must
|
| 368 |
|
|
//only make a packet available when it CAN be accepted.
|
| 369 |
|
|
///////////////////////////////////////////////////////////////////////////////
|
| 370 |
|
|
//Generate a random packet
|
| 371 |
|
|
ui_vc = generate_random_packet(pkt,datalength);
|
| 372 |
|
|
|
| 373 |
|
|
//Check that it can be sent
|
| 374 |
|
|
bool can_send_ui = !(sc_bit)fc_user_fifo_ge2_ui.read()[(unsigned)ui_vc];
|
| 375 |
|
|
|
| 376 |
|
|
//send if(necessary
|
| 377 |
|
|
bool send_ui = (rand() % 100 < percent_chance_from_ui) && can_send_ui;
|
| 378 |
|
|
|
| 379 |
|
|
if(send_ui && resetx.read()){
|
| 380 |
|
|
ui_available_fc = true;
|
| 381 |
|
|
|
| 382 |
|
|
if(datalength != 0)
|
| 383 |
|
|
add_ui_data_packet(datalength,ui_vc,pkt);
|
| 384 |
|
|
ui_packet_fc = pkt;
|
| 385 |
|
|
user_packets.push_back(pkt);
|
| 386 |
|
|
//cout << "SENDING_UI: pkt=" << pkt.to_string(SC_HEX) << " datalength=" << datalength << endl;
|
| 387 |
|
|
}
|
| 388 |
|
|
else{
|
| 389 |
|
|
ui_available_fc = false;
|
| 390 |
|
|
}
|
| 391 |
|
|
|
| 392 |
|
|
|
| 393 |
|
|
/////////////////////////////////////////////////////
|
| 394 |
|
|
// Handle nop related signals
|
| 395 |
|
|
/////////////////////////////////////////////////////
|
| 396 |
|
|
db_nop_req_fc = rand()% 100 < percent_chance_nop_req_db;;
|
| 397 |
|
|
ro_nop_req_fc = rand()% 100 < percent_chance_nop_req_ro;;
|
| 398 |
|
|
|
| 399 |
|
|
ro_buffer_cnt_fc = rand() & 0x3F;
|
| 400 |
|
|
db_buffer_cnt_fc = rand() & 0x3F;
|
| 401 |
|
|
|
| 402 |
|
|
//Force to 0 the buffer count as if all buffers were sent during retry sequence
|
| 403 |
|
|
//(needed to start the retry sequence)
|
| 404 |
|
|
if(!retry_sequence || !lk_rx_connected.read()) retry_sequence_count = 0;
|
| 405 |
|
|
if(cd_nop_received_fc.read())retry_sequence_count++;
|
| 406 |
|
|
|
| 407 |
|
|
if(retry_sequence && retry_sequence_count > 2 && retry_sequence_count < 5){
|
| 408 |
|
|
ro_buffer_cnt_fc = 0;
|
| 409 |
|
|
db_buffer_cnt_fc = 0;
|
| 410 |
|
|
}
|
| 411 |
|
|
|
| 412 |
|
|
cd_nop_received_fc = nop_delay[nop_counter_delay-1].nop_received;
|
| 413 |
|
|
if(nop_delay[nop_counter_delay-1].nop_received){
|
| 414 |
|
|
cd_nop_ack_value_fc = nop_delay[nop_counter_delay-1].nop_ack_value;
|
| 415 |
|
|
cd_nopinfo_fc = nop_delay[nop_counter_delay-1].nop_information;
|
| 416 |
|
|
}
|
| 417 |
|
|
|
| 418 |
|
|
//Generate a value that we can check in the received nops. The 0x20 is just
|
| 419 |
|
|
//an arbitrary value ored in to make sure that rand() doesn't produce 0. Having
|
| 420 |
|
|
//0 is not wanted because receiving 0 *could* also mean that the design isn't working.
|
| 421 |
|
|
if(resetx.read())
|
| 422 |
|
|
cd_rx_next_pkt_to_ack_fc = (rand() & 0xFF) | 0x20;
|
| 423 |
|
|
else
|
| 424 |
|
|
cd_rx_next_pkt_to_ack_fc = 0;
|
| 425 |
|
|
|
| 426 |
|
|
//If a nop is sent, tag it as being expected with the correct value
|
| 427 |
|
|
if(fc_nop_sent.read() && resetx.read()){
|
| 428 |
|
|
OutputDword expected;
|
| 429 |
|
|
expected.dword = 0;
|
| 430 |
|
|
expected.dword.range(19,18) = db_buffer_cnt_fc.read().range(5,4);
|
| 431 |
|
|
expected.dword.range(17,16) = ro_buffer_cnt_fc.read().range(5,4);
|
| 432 |
|
|
expected.dword.range(15,14) = db_buffer_cnt_fc.read().range(3,2);
|
| 433 |
|
|
expected.dword.range(13,12) = ro_buffer_cnt_fc.read().range(3,2);
|
| 434 |
|
|
expected.dword.range(11,10) = db_buffer_cnt_fc.read().range(1,0);
|
| 435 |
|
|
expected.dword.range(9,8) = ro_buffer_cnt_fc.read().range(1,0);
|
| 436 |
|
|
|
| 437 |
|
|
expected.dword.range(31,24) = cd_rx_next_pkt_to_ack_fc.read();
|
| 438 |
|
|
expected.lctl = true;
|
| 439 |
|
|
expected.hctl = true;
|
| 440 |
|
|
expected_output.push_back(expected);
|
| 441 |
|
|
|
| 442 |
|
|
if(csr_retry.read()){
|
| 443 |
|
|
calculate_crc1(expected.dword,true, true);
|
| 444 |
|
|
expected.dword = ~crc1;
|
| 445 |
|
|
expected.lctl = true; expected.hctl = false;
|
| 446 |
|
|
crc1 = 0xFFFFFFFF;
|
| 447 |
|
|
expected_output.push_back(expected);
|
| 448 |
|
|
}
|
| 449 |
|
|
}
|
| 450 |
|
|
|
| 451 |
|
|
/////////////////////////////////////////////////////
|
| 452 |
|
|
// Handle sending data from Databuffer and UI
|
| 453 |
|
|
/////////////////////////////////////////////////////
|
| 454 |
|
|
|
| 455 |
|
|
//from databuffer
|
| 456 |
|
|
if(fwd_address_db.read() == databuffer_data.address &&
|
| 457 |
|
|
fwd_vctype_db.read() == databuffer_data.vc &&
|
| 458 |
|
|
data_sent_db < (unsigned)databuffer_data.size)
|
| 459 |
|
|
{
|
| 460 |
|
|
db_data_fwd = databuffer_data.dwords[data_sent_db];
|
| 461 |
|
|
}
|
| 462 |
|
|
else{
|
| 463 |
|
|
db_data_fwd = 0;
|
| 464 |
|
|
}
|
| 465 |
|
|
|
| 466 |
|
|
if(fwd_read_db.read() && resetx.read()){
|
| 467 |
|
|
if(fc_status != FC_SENDING_FWD){
|
| 468 |
|
|
cout << "ERROR: Reading FWD data without having previously read a fwd command" <<endl;
|
| 469 |
|
|
cout << " - fc_status=" << fc_status << endl;
|
| 470 |
|
|
error = true; continue;
|
| 471 |
|
|
}
|
| 472 |
|
|
if(databuffer_output_vc != databuffer_data.vc ||
|
| 473 |
|
|
databuffer_output_addr != databuffer_data.address ||
|
| 474 |
|
|
data_sent_db == databuffer_data.size)
|
| 475 |
|
|
{
|
| 476 |
|
|
cout << "ERROR: Invalid read to databuffer data" << endl;
|
| 477 |
|
|
if(databuffer_output_vc != databuffer_data.vc)
|
| 478 |
|
|
cout << " -VC expected: " << databuffer_data.vc << " Received: " << databuffer_output_vc << endl;
|
| 479 |
|
|
if(databuffer_output_addr != databuffer_data.address)
|
| 480 |
|
|
cout << " -address expected: " << databuffer_data.address << " Received: " << databuffer_output_addr << endl;
|
| 481 |
|
|
if(data_sent_db == databuffer_data.size) cout << " completed sending data already" << endl;
|
| 482 |
|
|
error = true; continue;
|
| 483 |
|
|
}
|
| 484 |
|
|
|
| 485 |
|
|
OutputDword expected;
|
| 486 |
|
|
expected.dword = db_data_fwd.read();
|
| 487 |
|
|
expected.lctl = false; expected.hctl = false;
|
| 488 |
|
|
expected_output.push_back(expected);
|
| 489 |
|
|
if(csr_retry.read())
|
| 490 |
|
|
calculate_crc2( db_data_fwd.read(),false, false);
|
| 491 |
|
|
|
| 492 |
|
|
data_sent_db++;
|
| 493 |
|
|
|
| 494 |
|
|
//cout << "Data sent db: " << data_sent_db << " Data size: " << databuffer_data.size << endl;
|
| 495 |
|
|
|
| 496 |
|
|
if(data_sent_db == databuffer_data.size){
|
| 497 |
|
|
db_data_fwd = 0;
|
| 498 |
|
|
fc_status = FC_NONE;
|
| 499 |
|
|
data_sent_db = 0;
|
| 500 |
|
|
if(csr_retry.read()){
|
| 501 |
|
|
expected.dword = ~crc2;
|
| 502 |
|
|
expected.lctl = false; expected.hctl = true;
|
| 503 |
|
|
crc2 = 0xFFFFFFFF;
|
| 504 |
|
|
expected_output.push_back(expected);
|
| 505 |
|
|
}
|
| 506 |
|
|
}
|
| 507 |
|
|
else{
|
| 508 |
|
|
db_data_fwd = databuffer_data.dwords[data_sent_db];
|
| 509 |
|
|
}
|
| 510 |
|
|
}
|
| 511 |
|
|
|
| 512 |
|
|
databuffer_output_vc = fwd_vctype_db.read();
|
| 513 |
|
|
databuffer_output_addr = (unsigned)fwd_address_db.read();
|
| 514 |
|
|
|
| 515 |
|
|
//from UI
|
| 516 |
|
|
if(current_user_data_vc != VC_NONE){
|
| 517 |
|
|
if(fc_data_vc_ui.read() != current_user_data_vc){
|
| 518 |
|
|
cout << "ERROR: VC value not held until all UI data read" << endl;
|
| 519 |
|
|
error = true; continue;
|
| 520 |
|
|
}
|
| 521 |
|
|
|
| 522 |
|
|
if(fc_consume_data_ui.read()){
|
| 523 |
|
|
data_sent_ui++;
|
| 524 |
|
|
if(data_sent_ui != user_data[current_user_data_vc].front().size){
|
| 525 |
|
|
ui_data_fc = user_data[current_user_data_vc].front().dwords[data_sent_ui];
|
| 526 |
|
|
}
|
| 527 |
|
|
else{
|
| 528 |
|
|
data_sent_ui = 0;
|
| 529 |
|
|
current_user_data_vc = VC_NONE;
|
| 530 |
|
|
fc_status = FC_NONE;
|
| 531 |
|
|
}
|
| 532 |
|
|
|
| 533 |
|
|
}
|
| 534 |
|
|
}
|
| 535 |
|
|
else{
|
| 536 |
|
|
if(fc_consume_data_ui.read()){
|
| 537 |
|
|
if(fc_status != FC_NONE){
|
| 538 |
|
|
cout << "ERROR: Reading UI data while other task not done" <<endl;
|
| 539 |
|
|
cout << " - fc_status=" << fc_status << endl;
|
| 540 |
|
|
error = true; continue;
|
| 541 |
|
|
}
|
| 542 |
|
|
if(user_data[fc_data_vc_ui.read()].empty() ||
|
| 543 |
|
|
fc_data_vc_ui.read() !=current_user_data_vc_output)
|
| 544 |
|
|
{
|
| 545 |
|
|
cout << "ERROR: << Invalid VC when reading UI data" << endl;
|
| 546 |
|
|
error = true; continue;
|
| 547 |
|
|
}
|
| 548 |
|
|
if(user_data[fc_data_vc_ui.read()].front().size != 1){
|
| 549 |
|
|
data_sent_ui = 1;
|
| 550 |
|
|
current_user_data_vc = fc_data_vc_ui.read();
|
| 551 |
|
|
fc_status = FC_SENDING_UI;
|
| 552 |
|
|
ui_data_fc = user_data[fc_data_vc_ui.read()].front().dwords[data_sent_ui];
|
| 553 |
|
|
}
|
| 554 |
|
|
}
|
| 555 |
|
|
else{
|
| 556 |
|
|
if(fc_data_vc_ui.read() == VC_NONE){
|
| 557 |
|
|
ui_data_fc = 0;
|
| 558 |
|
|
}
|
| 559 |
|
|
else if(user_data[fc_data_vc_ui.read()].empty())
|
| 560 |
|
|
ui_data_fc = 0;
|
| 561 |
|
|
else{
|
| 562 |
|
|
ui_data_fc = user_data[fc_data_vc_ui.read()].front().dwords[0];
|
| 563 |
|
|
}
|
| 564 |
|
|
}
|
| 565 |
|
|
}
|
| 566 |
|
|
|
| 567 |
|
|
current_user_data_vc_output = fc_data_vc_ui.read();
|
| 568 |
|
|
|
| 569 |
|
|
//verify_output() MUST run after produce_inputs,
|
| 570 |
|
|
//so when produce_inputs is done, do a notification
|
| 571 |
|
|
input_produced.notify();
|
| 572 |
|
|
wait();
|
| 573 |
|
|
}
|
| 574 |
|
|
}
|
| 575 |
|
|
|
| 576 |
|
|
void flow_control_l2_tb::verify_output(){
|
| 577 |
|
|
|
| 578 |
|
|
////////////////////////////////////////////////////
|
| 579 |
|
|
// Initialization
|
| 580 |
|
|
////////////////////////////////////////////////////
|
| 581 |
|
|
|
| 582 |
|
|
clear_next_node_information();
|
| 583 |
|
|
|
| 584 |
|
|
ignore_next_dword_for_ack = false;
|
| 585 |
|
|
|
| 586 |
|
|
bool receiving_ui_datapacket = false;
|
| 587 |
|
|
VirtualChannel ui_packet_vc = VC_NONE;
|
| 588 |
|
|
unsigned ui_data_received = 0;
|
| 589 |
|
|
bool expected_second_ui_command_dword = false;
|
| 590 |
|
|
bool expecting_nop_crc = false;
|
| 591 |
|
|
sc_bv<32> second_ui_command_dword;
|
| 592 |
|
|
|
| 593 |
|
|
//At the beggining of a connection, we can expect to receive NOP's
|
| 594 |
|
|
//even though they're not really expected
|
| 595 |
|
|
bool connection_start = true;
|
| 596 |
|
|
|
| 597 |
|
|
bool expected_discon_nop = false;
|
| 598 |
|
|
bool received_discon_nop = false;
|
| 599 |
|
|
bool retry_discon_nop = false;
|
| 600 |
|
|
int max_delay_discon_nop = 0;
|
| 601 |
|
|
|
| 602 |
|
|
retry_sequence = false;
|
| 603 |
|
|
|
| 604 |
|
|
//Loop while no error is detected
|
| 605 |
|
|
//Catch any exception
|
| 606 |
|
|
try { while(!error){
|
| 607 |
|
|
//Under reset, clear some information
|
| 608 |
|
|
if(!resetx.read()){
|
| 609 |
|
|
clear_next_node_information();
|
| 610 |
|
|
connection_start = true;
|
| 611 |
|
|
retry_sequence = false;
|
| 612 |
|
|
}
|
| 613 |
|
|
|
| 614 |
|
|
//////////////////////
|
| 615 |
|
|
//Analyze disconnect nops
|
| 616 |
|
|
//////////////////////
|
| 617 |
|
|
if(expected_discon_nop && !received_discon_nop){
|
| 618 |
|
|
max_delay_discon_nop--;
|
| 619 |
|
|
if(max_delay_discon_nop <= 0){
|
| 620 |
|
|
cout << "ERROR: Disconnect nop expected but never received (timeout)" << endl;
|
| 621 |
|
|
error = true; continue;
|
| 622 |
|
|
}
|
| 623 |
|
|
}
|
| 624 |
|
|
|
| 625 |
|
|
if((!ldtstopx.read() ||
|
| 626 |
|
|
lk_initiate_retry_disconnect.read() && csr_retry.read() ||
|
| 627 |
|
|
cd_initiate_retry_disconnect.read() && csr_retry.read())&& !expected_discon_nop)
|
| 628 |
|
|
{
|
| 629 |
|
|
expected_discon_nop = true;
|
| 630 |
|
|
max_delay_discon_nop = 32;
|
| 631 |
|
|
retry_discon_nop = csr_retry.read();
|
| 632 |
|
|
}
|
| 633 |
|
|
|
| 634 |
|
|
if(!retry_discon_nop && ldtstopx.read()){
|
| 635 |
|
|
expected_discon_nop = false;
|
| 636 |
|
|
received_discon_nop = false;
|
| 637 |
|
|
}
|
| 638 |
|
|
//////////////////////
|
| 639 |
|
|
//Validate packet sent
|
| 640 |
|
|
//////////////////////
|
| 641 |
|
|
lk_consume_fc = rand() % 10 < 9;
|
| 642 |
|
|
|
| 643 |
|
|
//There is always a first empty nop at the begginning, read it
|
| 644 |
|
|
if(connection_start && lk_consume_fc.read() && resetx.read()){
|
| 645 |
|
|
connection_start = false;
|
| 646 |
|
|
crc1 = 0xFFFFFFFF;
|
| 647 |
|
|
crc2 = 0xFFFFFFFF;
|
| 648 |
|
|
//If in retry mode, expect a nop CRC
|
| 649 |
|
|
OutputDword o; o.dword = 0; o.lctl = true; o.hctl = true;
|
| 650 |
|
|
expected_output.push_back(o);
|
| 651 |
|
|
if(csr_retry.read()){
|
| 652 |
|
|
calculate_crc1(o.dword,true,true);
|
| 653 |
|
|
o.dword = ~crc1; o.lctl = true; o.hctl = false;
|
| 654 |
|
|
crc1 = 0xFFFFFFFF;
|
| 655 |
|
|
expected_output.push_back(o);
|
| 656 |
|
|
}
|
| 657 |
|
|
}
|
| 658 |
|
|
|
| 659 |
|
|
//Stop ignoring output when fc_disconnect_lk returns to false
|
| 660 |
|
|
/** It is needed to do it here because if it is done in
|
| 661 |
|
|
manage_retry_sequence, if there is nothing in the history
|
| 662 |
|
|
to play back, the first dword would be missed.*/
|
| 663 |
|
|
if(!fc_disconnect_lk.read()) retry_disconnect = false;
|
| 664 |
|
|
|
| 665 |
|
|
|
| 666 |
|
|
/**
|
| 667 |
|
|
In this section, we check if what is received is valid.
|
| 668 |
|
|
There are two possible correct values : a packet from the
|
| 669 |
|
|
expected list or a packet that was stored in the UI fifo.
|
| 670 |
|
|
|
| 671 |
|
|
All packets exluding packets from the UI are consumed by
|
| 672 |
|
|
the Flow Control module so we know that we are expecting
|
| 673 |
|
|
thos packets. UI packets on the other hand are stored
|
| 674 |
|
|
in a buffer before being sent, so we do not know exactly
|
| 675 |
|
|
when they will be received.
|
| 676 |
|
|
|
| 677 |
|
|
So we first check if it was from the expected list, and
|
| 678 |
|
|
then if it's a valid packet that was sent from the UI.
|
| 679 |
|
|
*/
|
| 680 |
|
|
if(retry_sequence || retry_disconnect){
|
| 681 |
|
|
manage_retry_sequence();
|
| 682 |
|
|
}
|
| 683 |
|
|
else if(lk_consume_fc.read() && !connection_start){
|
| 684 |
|
|
OutputDword expected;
|
| 685 |
|
|
if(!expected_output.empty())
|
| 686 |
|
|
expected = expected_output.front();
|
| 687 |
|
|
/*
|
| 688 |
|
|
bool receiving_ui_packet = false;
|
| 689 |
|
|
VirtualChannel ui_packet_vc = VC_NONE;
|
| 690 |
|
|
unsigned ui_data_received = 0;
|
| 691 |
|
|
*/
|
| 692 |
|
|
//If we are currently receiving a UI DATA packet
|
| 693 |
|
|
if(expected_second_ui_command_dword){
|
| 694 |
|
|
if(fc_dword_lk.read() != second_ui_command_dword ||
|
| 695 |
|
|
!fc_lctl_lk.read() || !fc_hctl_lk.read())
|
| 696 |
|
|
{
|
| 697 |
|
|
cout << "ERROR: Invalid second UI dword received" << endl;
|
| 698 |
|
|
cout << "Dword expected: " << second_ui_command_dword.to_string(SC_HEX) <<
|
| 699 |
|
|
" received: " << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 700 |
|
|
error = true; continue;
|
| 701 |
|
|
}
|
| 702 |
|
|
expected_second_ui_command_dword = false;
|
| 703 |
|
|
}
|
| 704 |
|
|
//If expecting a nop CRC, just check that it is correct in the expected
|
| 705 |
|
|
//dwords list
|
| 706 |
|
|
else if(expecting_nop_crc){
|
| 707 |
|
|
if(fc_dword_lk.read() == expected.dword &&
|
| 708 |
|
|
fc_lctl_lk.read() == expected.lctl &&
|
| 709 |
|
|
fc_hctl_lk.read() == expected.hctl &&
|
| 710 |
|
|
!expected_output.empty())
|
| 711 |
|
|
{
|
| 712 |
|
|
expected_output.pop_front();
|
| 713 |
|
|
expecting_nop_crc = false;
|
| 714 |
|
|
}
|
| 715 |
|
|
else{
|
| 716 |
|
|
cout << "ERROR: Invalid NOP CRC received while receiving UI data" << endl;
|
| 717 |
|
|
}
|
| 718 |
|
|
}
|
| 719 |
|
|
//If already receiving data packet
|
| 720 |
|
|
else if(receiving_ui_datapacket){
|
| 721 |
|
|
//Check if receiving a nop
|
| 722 |
|
|
if(fc_lctl_lk.read() || fc_hctl_lk.read()){
|
| 723 |
|
|
if(!(fc_lctl_lk.read()&& fc_hctl_lk.read() &&
|
| 724 |
|
|
fc_dword_lk.read().range(5,0) == 0))
|
| 725 |
|
|
{
|
| 726 |
|
|
cout << "ERROR: Invalid non data packet received while receiving UI data" << endl;
|
| 727 |
|
|
cout << "Received: " << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 728 |
|
|
error = true; continue;
|
| 729 |
|
|
}
|
| 730 |
|
|
if(fc_dword_lk.read() == expected.dword &&
|
| 731 |
|
|
fc_lctl_lk.read() == expected.lctl &&
|
| 732 |
|
|
fc_hctl_lk.read() == expected.hctl &&
|
| 733 |
|
|
!expected_output.empty())
|
| 734 |
|
|
{
|
| 735 |
|
|
expected_output.pop_front();
|
| 736 |
|
|
expecting_nop_crc = csr_retry.read();
|
| 737 |
|
|
}
|
| 738 |
|
|
else{
|
| 739 |
|
|
cout << "ERROR: Unexpected NOP received while receiving UI data" << endl;
|
| 740 |
|
|
cout << "Received: " << fc_dword_lk.read().to_string(SC_HEX);
|
| 741 |
|
|
error = true; continue;
|
| 742 |
|
|
}
|
| 743 |
|
|
}
|
| 744 |
|
|
//Check if the correct data is received
|
| 745 |
|
|
else{
|
| 746 |
|
|
PacketData& data = user_data[ui_packet_vc].front();
|
| 747 |
|
|
//cout << "Receiving UI datapacket" << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 748 |
|
|
//cout << "Size of data: " << data.size << " data reveived so far: " << ui_data_received << endl;
|
| 749 |
|
|
//cout << "Control packet: " << data.associated_control_pkt.to_string(SC_HEX) << endl;
|
| 750 |
|
|
|
| 751 |
|
|
if(data.dwords[ui_data_received++] != fc_dword_lk.read())
|
| 752 |
|
|
{
|
| 753 |
|
|
cout << "ERROR: Invalid data received while reveiving ui data" << endl;
|
| 754 |
|
|
cout << "Expected: " << sc_uint<32>(data.dwords[ui_data_received-1]).to_string(SC_HEX) <<
|
| 755 |
|
|
" received: " << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 756 |
|
|
error = true; continue;
|
| 757 |
|
|
}
|
| 758 |
|
|
//If retry mode, expect the CRC
|
| 759 |
|
|
if(data.size == ui_data_received){
|
| 760 |
|
|
receiving_ui_datapacket = false;
|
| 761 |
|
|
ui_data_received = 0;
|
| 762 |
|
|
if(csr_retry.read()){
|
| 763 |
|
|
add_expected_crc_for_packet(user_data[ui_packet_vc].front());
|
| 764 |
|
|
}
|
| 765 |
|
|
user_data[ui_packet_vc].pop_front();
|
| 766 |
|
|
}
|
| 767 |
|
|
}
|
| 768 |
|
|
}
|
| 769 |
|
|
//If the packet is expected
|
| 770 |
|
|
else if(fc_dword_lk.read() == expected.dword &&
|
| 771 |
|
|
fc_lctl_lk.read() == expected.lctl &&
|
| 772 |
|
|
fc_hctl_lk.read() == expected.hctl &&
|
| 773 |
|
|
!expected_output.empty())
|
| 774 |
|
|
{
|
| 775 |
|
|
expected_output.pop_front();
|
| 776 |
|
|
}
|
| 777 |
|
|
//Check for a disconnect nop
|
| 778 |
|
|
else if(fc_lctl_lk.read() && fc_hctl_lk.read() && fc_dword_lk.read() == 0x00000040){
|
| 779 |
|
|
if(!expected_discon_nop){
|
| 780 |
|
|
cout << "ERROR: Unexpected disconnect nop" << endl;
|
| 781 |
|
|
error = true; continue;
|
| 782 |
|
|
}
|
| 783 |
|
|
else{
|
| 784 |
|
|
if(retry_discon_nop){
|
| 785 |
|
|
expected_discon_nop = false;
|
| 786 |
|
|
start_retry_sequence();
|
| 787 |
|
|
}
|
| 788 |
|
|
else{
|
| 789 |
|
|
received_discon_nop = true;
|
| 790 |
|
|
}
|
| 791 |
|
|
}
|
| 792 |
|
|
}
|
| 793 |
|
|
//Check if it is in the UI fifo
|
| 794 |
|
|
else if(fc_lctl_lk.read() && fc_hctl_lk.read()){
|
| 795 |
|
|
//Try to find the packet in the list send from UI
|
| 796 |
|
|
bool found = false;
|
| 797 |
|
|
deque<sc_bv<64> >::iterator i;
|
| 798 |
|
|
PacketCommand cmd = getPacketCommand(fc_dword_lk.read().range(5,0));
|
| 799 |
|
|
receiving_ui_datapacket = hasDataAssociated(cmd);
|
| 800 |
|
|
for(i = user_packets.begin(); i != user_packets.end();i++){
|
| 801 |
|
|
if((*i).range(31,0) == fc_dword_lk.read()){
|
| 802 |
|
|
expected_second_ui_command_dword = !isDwordPacket((*i),cmd);
|
| 803 |
|
|
second_ui_command_dword = (*i).range(63,32);
|
| 804 |
|
|
found = true;
|
| 805 |
|
|
|
| 806 |
|
|
/**This is a hack to keep the code a bit more simple. When a
|
| 807 |
|
|
CRC is expected for a UI packet without data, add it to the
|
| 808 |
|
|
expected list. It is impossible to do this for packets that have
|
| 809 |
|
|
data because NOPs might get inserted to the expected list, the CRC
|
| 810 |
|
|
calculation is taken car of in the UI data reception code.*/
|
| 811 |
|
|
if(csr_retry.read() && !receiving_ui_datapacket){
|
| 812 |
|
|
unsigned tmp = crc1;
|
| 813 |
|
|
crc1 = 0xFFFFFFFF;
|
| 814 |
|
|
calculate_crc1(fc_dword_lk.read(),true,true);
|
| 815 |
|
|
if(expected_second_ui_command_dword)
|
| 816 |
|
|
calculate_crc1((*i).range(63,32),true,true);
|
| 817 |
|
|
|
| 818 |
|
|
OutputDword o;
|
| 819 |
|
|
o.dword = ~crc1;
|
| 820 |
|
|
o.lctl = true;
|
| 821 |
|
|
o.hctl = false;
|
| 822 |
|
|
expected_output.push_front(o);
|
| 823 |
|
|
|
| 824 |
|
|
crc1 = tmp;
|
| 825 |
|
|
}
|
| 826 |
|
|
|
| 827 |
|
|
break;
|
| 828 |
|
|
}
|
| 829 |
|
|
}
|
| 830 |
|
|
|
| 831 |
|
|
|
| 832 |
|
|
|
| 833 |
|
|
//If not found, generate an error
|
| 834 |
|
|
if(!found){
|
| 835 |
|
|
cout << "ERROR: Packet not found in the packet list sent from fifo" << endl;
|
| 836 |
|
|
cout << "Dword not found: " << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 837 |
|
|
if(expected_output.empty()){
|
| 838 |
|
|
cout << "No expected dword" << endl;
|
| 839 |
|
|
}
|
| 840 |
|
|
else{
|
| 841 |
|
|
cout << "Expected dword: " << expected.dword.to_string(SC_HEX) << endl;
|
| 842 |
|
|
cout << "Expected LCTL: " << expected.lctl << endl;
|
| 843 |
|
|
cout << "Expected HCTL: " << expected.hctl << endl;
|
| 844 |
|
|
}
|
| 845 |
|
|
error = true; continue;
|
| 846 |
|
|
}
|
| 847 |
|
|
|
| 848 |
|
|
//Check if it's legal to send that packet by checking the previous packets
|
| 849 |
|
|
bool passPW = getPassPW(*i);
|
| 850 |
|
|
ui_packet_vc = getVirtualChannel(*i,cmd);
|
| 851 |
|
|
bool illegal = false;
|
| 852 |
|
|
deque<sc_bv<64> >::iterator n;
|
| 853 |
|
|
for(n = user_packets.begin(); n != i && !illegal;n++){
|
| 854 |
|
|
PacketCommand cmd_n = getPacketCommand(n->range(5,0));
|
| 855 |
|
|
VirtualChannel vc_n = getVirtualChannel(*n,cmd_n);
|
| 856 |
|
|
bool passPW_n = getPassPW(*n);
|
| 857 |
|
|
switch(ui_packet_vc){
|
| 858 |
|
|
case VC_POSTED:
|
| 859 |
|
|
illegal = vc_n == VC_POSTED && (passPW_n || !passPW);
|
| 860 |
|
|
break;
|
| 861 |
|
|
case VC_NON_POSTED:
|
| 862 |
|
|
illegal = !passPW || passPW_n;
|
| 863 |
|
|
break;
|
| 864 |
|
|
case VC_RESPONSE:
|
| 865 |
|
|
illegal = vc_n == VC_RESPONSE || !passPW && vc_n == VC_POSTED;
|
| 866 |
|
|
break;
|
| 867 |
|
|
default:
|
| 868 |
|
|
cout << "ERROR: Internal error, an invalide packet was received but was expected" << endl;
|
| 869 |
|
|
error = true; continue;
|
| 870 |
|
|
}
|
| 871 |
|
|
if(illegal) break;
|
| 872 |
|
|
}
|
| 873 |
|
|
if(illegal){
|
| 874 |
|
|
cout << "ERROR: Received a packet which broke ordering rules within UI FIFO" << endl;
|
| 875 |
|
|
cout << "Packet: " << i->to_string(SC_HEX) << " passed: " << n->to_string(SC_HEX) << endl;
|
| 876 |
|
|
error = true; continue;
|
| 877 |
|
|
}
|
| 878 |
|
|
user_packets.erase(i);
|
| 879 |
|
|
}
|
| 880 |
|
|
else{
|
| 881 |
|
|
cout << "ERROR: Unexpected non command packet received" << endl;
|
| 882 |
|
|
cout << "Received: " << fc_dword_lk.read().to_string(SC_HEX) <<
|
| 883 |
|
|
" LCTL: " << fc_lctl_lk.read() <<
|
| 884 |
|
|
" HCTL: " << fc_hctl_lk.read() << endl;
|
| 885 |
|
|
if(expected_output.empty()){
|
| 886 |
|
|
cout << "Nothing expected" << endl;
|
| 887 |
|
|
}
|
| 888 |
|
|
else{
|
| 889 |
|
|
cout << "Expected: " << expected_output.front().dword.to_string(SC_HEX) <<
|
| 890 |
|
|
" LCTL: " << expected_output.front().lctl <<
|
| 891 |
|
|
" HCTL: " << expected_output.front().hctl << endl;
|
| 892 |
|
|
}
|
| 893 |
|
|
error = true; continue;
|
| 894 |
|
|
}
|
| 895 |
|
|
}
|
| 896 |
|
|
|
| 897 |
|
|
manage_ack_buffer_count();
|
| 898 |
|
|
send_next_node_nops();
|
| 899 |
|
|
free_buffers();
|
| 900 |
|
|
if(csr_retry.read()){
|
| 901 |
|
|
manage_history();
|
| 902 |
|
|
}
|
| 903 |
|
|
wait();
|
| 904 |
|
|
}/* while*/ } // try
|
| 905 |
|
|
catch(TestbenchError tbe){
|
| 906 |
|
|
cout << tbe.message << endl;
|
| 907 |
|
|
error = true;
|
| 908 |
|
|
}
|
| 909 |
|
|
resetx = false;
|
| 910 |
|
|
}
|
| 911 |
|
|
|
| 912 |
|
|
void flow_control_l2_tb::manage_retry_sequence(){
|
| 913 |
|
|
//Analyze output when data is read, unless we are ignoring output because
|
| 914 |
|
|
//a retry disconnect sequence was just initiated
|
| 915 |
|
|
if(lk_consume_fc.read() && !retry_disconnect){
|
| 916 |
|
|
//A nop was sent on previous cycle, we expect a nop CRC
|
| 917 |
|
|
if(retry_expect_nop_crc){
|
| 918 |
|
|
if(retry_playback_history.empty()){
|
| 919 |
|
|
cout << "*!!!* History playback empty" << endl;
|
| 920 |
|
|
retry_sequence = false;
|
| 921 |
|
|
}
|
| 922 |
|
|
if(expected_output.empty()){
|
| 923 |
|
|
TestbenchError te;
|
| 924 |
|
|
te.message = "No nop CRC in expected output (retry sequence)";
|
| 925 |
|
|
throw te;
|
| 926 |
|
|
}
|
| 927 |
|
|
if(expected_output.front().dword != fc_dword_lk.read() ||
|
| 928 |
|
|
expected_output.front().lctl != fc_lctl_lk.read() ||
|
| 929 |
|
|
expected_output.front().hctl != fc_hctl_lk.read())
|
| 930 |
|
|
{
|
| 931 |
|
|
TestbenchError te;
|
| 932 |
|
|
ostringstream o;
|
| 933 |
|
|
o << "Expecting nop CRC (retry sequence), invalid dword received" << endl
|
| 934 |
|
|
<< "Expected: " << expected_output.front().dword.to_string(SC_HEX) << " Received: " <<
|
| 935 |
|
|
fc_dword_lk.read().to_string(SC_HEX) << endl
|
| 936 |
|
|
<< "Expected LCTL: " << expected_output.front().lctl << " xpected HCTL: " << expected_output.front().hctl;
|
| 937 |
|
|
te.message = o.str();
|
| 938 |
|
|
throw te;
|
| 939 |
|
|
}
|
| 940 |
|
|
expected_output.pop_front();
|
| 941 |
|
|
|
| 942 |
|
|
retry_expect_nop_crc = false;
|
| 943 |
|
|
}
|
| 944 |
|
|
//First dword of a quad word packet sent last cycle, expect the secont dword
|
| 945 |
|
|
else if(retry_second_dword_next){
|
| 946 |
|
|
retry_second_dword_next = false;
|
| 947 |
|
|
if(fc_dword_lk.read() != retry_playback_history.front().pkt.range(63,32) ||
|
| 948 |
|
|
!fc_lctl_lk.read() || !fc_hctl_lk.read())
|
| 949 |
|
|
{
|
| 950 |
|
|
TestbenchError err;
|
| 951 |
|
|
err.message = "ERROR: Wrong second command dword during history playback\n";
|
| 952 |
|
|
throw err;
|
| 953 |
|
|
}
|
| 954 |
|
|
}
|
| 955 |
|
|
//Packet was done being sent last cycle, expect the following CRC
|
| 956 |
|
|
else if(retry_crc_next){
|
| 957 |
|
|
retry_crc_next = false;
|
| 958 |
|
|
bool has_data = retry_playback_history.front().data_size != 0;
|
| 959 |
|
|
if(fc_dword_lk.read() != retry_playback_history.front().crc ||
|
| 960 |
|
|
fc_lctl_lk.read() == has_data || fc_hctl_lk.read() != has_data)
|
| 961 |
|
|
{
|
| 962 |
|
|
TestbenchError err;
|
| 963 |
|
|
err.message = "ERROR: Wrong crc dword during history playback\n";
|
| 964 |
|
|
throw err;
|
| 965 |
|
|
}
|
| 966 |
|
|
retry_playback_history.pop_front();
|
| 967 |
|
|
|
| 968 |
|
|
//Retry sequence is over the the playback history is empty
|
| 969 |
|
|
retry_sequence = !retry_playback_history.empty();
|
| 970 |
|
|
}
|
| 971 |
|
|
//Command packet with data associated received last cycle, now expect the following data
|
| 972 |
|
|
else if(retry_receive_data){
|
| 973 |
|
|
if(fc_lctl_lk.read() && fc_hctl_lk.read() && !expected_output.empty()){
|
| 974 |
|
|
if(fc_dword_lk.read() == expected_output.front().dword){
|
| 975 |
|
|
expected_output.pop_front();
|
| 976 |
|
|
retry_expect_nop_crc = true;
|
| 977 |
|
|
}
|
| 978 |
|
|
else{
|
| 979 |
|
|
TestbenchError err;
|
| 980 |
|
|
ostringstream o;
|
| 981 |
|
|
o << "ERROR: Unexpected command packet received while receiving retry data\n" <<
|
| 982 |
|
|
"Received: " << fc_dword_lk.read().to_string(SC_HEX) <<
|
| 983 |
|
|
" Expected: " << expected_output.front().dword.to_string(SC_HEX);
|
| 984 |
|
|
err.message = o.str();
|
| 985 |
|
|
throw err;
|
| 986 |
|
|
}
|
| 987 |
|
|
}
|
| 988 |
|
|
else{
|
| 989 |
|
|
if(fc_dword_lk.read() != retry_playback_history.front().data[retry_data_count++] ||
|
| 990 |
|
|
fc_lctl_lk.read() || fc_hctl_lk.read())
|
| 991 |
|
|
{
|
| 992 |
|
|
TestbenchError err;
|
| 993 |
|
|
ostringstream o;
|
| 994 |
|
|
o << "ERROR: Wrong data dword during history playback\nExpected[" << retry_data_count-1 <<"]: " <<
|
| 995 |
|
|
sc_uint<32>(retry_playback_history.front().data[retry_data_count-1]).to_string(SC_HEX)
|
| 996 |
|
|
<< " Received: " << fc_dword_lk.read().to_string(SC_HEX);
|
| 997 |
|
|
err.message = o.str();
|
| 998 |
|
|
throw err;
|
| 999 |
|
|
}
|
| 1000 |
|
|
//cout << "Data size: " << retry_playback_history.front().data_size << " retry_data_count: " << retry_data_count << endl;
|
| 1001 |
|
|
retry_receive_data = retry_playback_history.front().data_size != retry_data_count;
|
| 1002 |
|
|
retry_crc_next = !retry_receive_data;
|
| 1003 |
|
|
}
|
| 1004 |
|
|
}
|
| 1005 |
|
|
//Expecting another
|
| 1006 |
|
|
else{
|
| 1007 |
|
|
if(fc_lctl_lk.read() && fc_hctl_lk.read() && fc_dword_lk.read() == expected_output.front().dword){
|
| 1008 |
|
|
expected_output.pop_front();
|
| 1009 |
|
|
retry_expect_nop_crc = true;
|
| 1010 |
|
|
}
|
| 1011 |
|
|
else{
|
| 1012 |
|
|
if(fc_dword_lk.read() != retry_playback_history.front().pkt.range(31,0) ||
|
| 1013 |
|
|
!fc_lctl_lk.read() || !fc_hctl_lk.read())
|
| 1014 |
|
|
{
|
| 1015 |
|
|
TestbenchError err;
|
| 1016 |
|
|
ostringstream o;
|
| 1017 |
|
|
o << "ERROR: Wrong first command dword during history playback\n" <<
|
| 1018 |
|
|
"Received: " << fc_dword_lk.read().to_string(SC_HEX) << " Expected: " <<
|
| 1019 |
|
|
retry_playback_history.front().pkt.to_string(SC_HEX);
|
| 1020 |
|
|
err.message = o.str();
|
| 1021 |
|
|
throw err;
|
| 1022 |
|
|
}
|
| 1023 |
|
|
retry_receive_data = retry_playback_history.front().data_size;
|
| 1024 |
|
|
retry_data_count = 0;
|
| 1025 |
|
|
PacketCommand cmd = getPacketCommand( retry_playback_history.front().pkt);
|
| 1026 |
|
|
retry_second_dword_next = !isDwordPacket(retry_playback_history.front().pkt,cmd);
|
| 1027 |
|
|
retry_crc_next = !retry_receive_data;
|
| 1028 |
|
|
}
|
| 1029 |
|
|
}
|
| 1030 |
|
|
}
|
| 1031 |
|
|
|
| 1032 |
|
|
//Start ignoring output when fc_disconnect_lk is true and output is read
|
| 1033 |
|
|
if(lk_consume_fc.read()){
|
| 1034 |
|
|
retry_disconnect = fc_disconnect_lk.read();
|
| 1035 |
|
|
//If there is no data in playback history, sequence is over
|
| 1036 |
|
|
retry_sequence = !retry_playback_history.empty();
|
| 1037 |
|
|
}
|
| 1038 |
|
|
}
|
| 1039 |
|
|
|
| 1040 |
|
|
void flow_control_l2_tb::start_retry_sequence(){
|
| 1041 |
|
|
retry_sequence = true;
|
| 1042 |
|
|
retry_disconnect = false;
|
| 1043 |
|
|
retry_second_dword_next = false;
|
| 1044 |
|
|
retry_crc_next = false;
|
| 1045 |
|
|
retry_receive_data = false;
|
| 1046 |
|
|
|
| 1047 |
|
|
//Tag the nops in the delay loop so that they're not sent
|
| 1048 |
|
|
for(int n = nop_counter_delay - 1; n != 0; n--)
|
| 1049 |
|
|
nop_delay[n].nop_received = false;
|
| 1050 |
|
|
|
| 1051 |
|
|
//Reset the next_node_ack_value to the last sent value
|
| 1052 |
|
|
next_node_ack_value = cd_nop_ack_value_fc.read();
|
| 1053 |
|
|
next_node_ack_value_pending = cd_nop_ack_value_fc.read();
|
| 1054 |
|
|
|
| 1055 |
|
|
//Reset buffer counts
|
| 1056 |
|
|
for(int n = 0; n < 3; n++){
|
| 1057 |
|
|
next_node_buffers_advertised[n] = 0;
|
| 1058 |
|
|
next_node_databuffers_advertised[n] = 0;
|
| 1059 |
|
|
}
|
| 1060 |
|
|
|
| 1061 |
|
|
|
| 1062 |
|
|
//history might get modified while playback so we take a snapshot for the playback
|
| 1063 |
|
|
retry_playback_history = history;
|
| 1064 |
|
|
|
| 1065 |
|
|
cout << "First packet in history at retry begin : " << history.front().pkt.to_string(SC_HEX) <<
|
| 1066 |
|
|
" ID: " << history.front().nop_ack_value << endl;
|
| 1067 |
|
|
|
| 1068 |
|
|
//We enter retry sequence when receiving a disconnect nop, expect the following crc
|
| 1069 |
|
|
retry_expect_nop_crc = true;
|
| 1070 |
|
|
crc1 = 0xFFFFFFFF;
|
| 1071 |
|
|
calculate_crc1(fc_dword_lk.read(),true,true);
|
| 1072 |
|
|
OutputDword o;
|
| 1073 |
|
|
o.dword = ~crc1; o.lctl = true; o.hctl = false;
|
| 1074 |
|
|
crc1 = 0xFFFFFFFF;
|
| 1075 |
|
|
expected_output.push_back(o);
|
| 1076 |
|
|
}
|
| 1077 |
|
|
|
| 1078 |
|
|
void flow_control_l2_tb::manage_ack_buffer_count(){
|
| 1079 |
|
|
/////////////////////////////////////////////
|
| 1080 |
|
|
//Calculate Ack value and update buffer count
|
| 1081 |
|
|
/////////////////////////////////////////////
|
| 1082 |
|
|
if(lk_consume_fc.read()){
|
| 1083 |
|
|
///Ignore the second dword of a quad word command packet
|
| 1084 |
|
|
if(ignore_next_dword_for_ack){
|
| 1085 |
|
|
ignore_next_dword_for_ack = false;
|
| 1086 |
|
|
}
|
| 1087 |
|
|
///Check for dwords that are command packets (both CTL asserted)
|
| 1088 |
|
|
else if(fc_lctl_lk.read() && fc_hctl_lk.read()){
|
| 1089 |
|
|
//Set the last ack value (value pending) only when another command packet is sent
|
| 1090 |
|
|
//Meaning that it has been completely sent
|
| 1091 |
|
|
next_node_ack_value = next_node_ack_value_pending;
|
| 1092 |
|
|
|
| 1093 |
|
|
sc_bv<64> pkt = fc_dword_lk.read();
|
| 1094 |
|
|
PacketCommand cmd = getPacketCommand(pkt.range(6,0));
|
| 1095 |
|
|
bool dword = isDwordPacket(pkt,cmd);
|
| 1096 |
|
|
VirtualChannel vc = getVirtualChannel(pkt,cmd);
|
| 1097 |
|
|
bool has_data = hasDataAssociated(cmd);
|
| 1098 |
|
|
|
| 1099 |
|
|
///Increment the ack value
|
| 1100 |
|
|
if(csr_retry.read() &&
|
| 1101 |
|
|
fc_dword_lk.read().range(5,0) != "000000" && //Unless it's a nop
|
| 1102 |
|
|
fc_dword_lk.read().range(5,0) != "110111" && //A flow control packet
|
| 1103 |
|
|
fc_dword_lk.read().range(5,0) != "111111") next_node_ack_value_pending++;//Or a sync packet
|
| 1104 |
|
|
|
| 1105 |
|
|
if(vc != VC_NONE){
|
| 1106 |
|
|
ignore_next_dword_for_ack = !dword;
|
| 1107 |
|
|
if(has_data){
|
| 1108 |
|
|
if(next_node_databuffers_advertised[vc] == 0){
|
| 1109 |
|
|
TestbenchError err;
|
| 1110 |
|
|
err.message = "ERROR: Received a packet for a Virtual channel that did not have available buffers" ;
|
| 1111 |
|
|
throw err;
|
| 1112 |
|
|
}
|
| 1113 |
|
|
next_node_databuffers_advertised[vc]--;
|
| 1114 |
|
|
}
|
| 1115 |
|
|
else{
|
| 1116 |
|
|
if(next_node_buffers_advertised[vc] == 0){
|
| 1117 |
|
|
TestbenchError err;
|
| 1118 |
|
|
err.message = "ERROR: Received a packet for a Virtual channel that did not have available buffers";
|
| 1119 |
|
|
throw err;
|
| 1120 |
|
|
}
|
| 1121 |
|
|
next_node_buffers_advertised[vc]--;
|
| 1122 |
|
|
}
|
| 1123 |
|
|
}
|
| 1124 |
|
|
}
|
| 1125 |
|
|
}
|
| 1126 |
|
|
}
|
| 1127 |
|
|
|
| 1128 |
|
|
|
| 1129 |
|
|
void flow_control_l2_tb::send_next_node_nops(){
|
| 1130 |
|
|
//////////////////////
|
| 1131 |
|
|
//Send next node nops
|
| 1132 |
|
|
//////////////////////
|
| 1133 |
|
|
|
| 1134 |
|
|
//Take care of the delay
|
| 1135 |
|
|
for(int n = nop_counter_delay - 1; n != 0; n--)
|
| 1136 |
|
|
nop_delay[n] = nop_delay[n-1];
|
| 1137 |
|
|
|
| 1138 |
|
|
//Decide if sending nop
|
| 1139 |
|
|
nop_delay[0].nop_received = rand()% 100 < percent_chance_nop_received &&
|
| 1140 |
|
|
!fc_disconnect_lk.read() && lk_rx_connected.read();
|
| 1141 |
|
|
|
| 1142 |
|
|
//If sending nop, choose content
|
| 1143 |
|
|
if(nop_delay[0].nop_received){
|
| 1144 |
|
|
//Set the current ack value
|
| 1145 |
|
|
nop_delay[0].nop_ack_value = next_node_ack_value;
|
| 1146 |
|
|
|
| 1147 |
|
|
//Randomly set how many buffers are freed
|
| 1148 |
|
|
sc_bv<12> nop_information = 0;
|
| 1149 |
|
|
|
| 1150 |
|
|
nop_information = rand();
|
| 1151 |
|
|
|
| 1152 |
|
|
//If the randomly set value exceeds the maximum value, saturate it. Repeat for every
|
| 1153 |
|
|
//kind of buffer (3 vcs for data and for command)
|
| 1154 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(1,0) + next_node_buffers_advertised[VC_POSTED])
|
| 1155 |
|
|
> next_node_buffers_free[VC_POSTED])
|
| 1156 |
|
|
nop_information.range(1,0) = next_node_buffers_free[VC_POSTED] - next_node_buffers_advertised[VC_POSTED];
|
| 1157 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(3,2) + next_node_databuffers_advertised[VC_POSTED])
|
| 1158 |
|
|
> next_node_databuffers_free[VC_POSTED])
|
| 1159 |
|
|
nop_information.range(3,2) = next_node_databuffers_free[VC_POSTED] - next_node_databuffers_advertised[VC_POSTED];
|
| 1160 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(5,4) + next_node_buffers_advertised[VC_RESPONSE])
|
| 1161 |
|
|
> next_node_buffers_free[VC_RESPONSE])
|
| 1162 |
|
|
nop_information.range(5,4) = next_node_buffers_free[VC_RESPONSE] - next_node_buffers_advertised[VC_RESPONSE];
|
| 1163 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(7,6) + next_node_databuffers_advertised[VC_RESPONSE])
|
| 1164 |
|
|
> next_node_databuffers_free[VC_RESPONSE])
|
| 1165 |
|
|
nop_information.range(7,6) = next_node_databuffers_free[VC_RESPONSE] - next_node_databuffers_advertised[VC_RESPONSE];
|
| 1166 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(9,8) + next_node_buffers_advertised[VC_NON_POSTED])
|
| 1167 |
|
|
> next_node_buffers_free[VC_NON_POSTED])
|
| 1168 |
|
|
nop_information.range(9,8) = next_node_buffers_free[VC_NON_POSTED] - next_node_buffers_advertised[VC_NON_POSTED];
|
| 1169 |
|
|
if(((sc_uint<2>)(sc_bv<2>)nop_information.range(11,10) + next_node_databuffers_advertised[VC_NON_POSTED])
|
| 1170 |
|
|
> next_node_databuffers_free[VC_NON_POSTED])
|
| 1171 |
|
|
nop_information.range(11,10) = next_node_databuffers_free[VC_NON_POSTED] - next_node_databuffers_advertised[VC_NON_POSTED];
|
| 1172 |
|
|
|
| 1173 |
|
|
//Add the advertised value
|
| 1174 |
|
|
next_node_buffers_advertised[VC_POSTED] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(1,0);
|
| 1175 |
|
|
next_node_databuffers_advertised[VC_POSTED] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(3,2);
|
| 1176 |
|
|
next_node_buffers_advertised[VC_RESPONSE] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(5,4);
|
| 1177 |
|
|
next_node_databuffers_advertised[VC_RESPONSE] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(7,6);
|
| 1178 |
|
|
next_node_buffers_advertised[VC_NON_POSTED] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(9,8);
|
| 1179 |
|
|
next_node_databuffers_advertised[VC_NON_POSTED] += (unsigned)(sc_uint<2>)(sc_bv<2>)nop_information.range(11,10);
|
| 1180 |
|
|
|
| 1181 |
|
|
|
| 1182 |
|
|
nop_delay[0].nop_information = nop_information;
|
| 1183 |
|
|
}
|
| 1184 |
|
|
}
|
| 1185 |
|
|
|
| 1186 |
|
|
void flow_control_l2_tb::free_buffers(){
|
| 1187 |
|
|
//////////////////////
|
| 1188 |
|
|
//Free some buffers
|
| 1189 |
|
|
//////////////////////
|
| 1190 |
|
|
for(int n = 0; n < 3; n++){
|
| 1191 |
|
|
//Free command packets
|
| 1192 |
|
|
|
| 1193 |
|
|
//Generate a random free value that has a maximum of 3
|
| 1194 |
|
|
unsigned tmp = rand() % 20;
|
| 1195 |
|
|
unsigned free = tmp;
|
| 1196 |
|
|
if(free > 3) free = 0;
|
| 1197 |
|
|
|
| 1198 |
|
|
//Add the value to the number of free buffers (and saturated at the maximum)
|
| 1199 |
|
|
if((next_node_buffers_free[n] + free) > next_node_buffers_maximum[n])
|
| 1200 |
|
|
next_node_buffers_free[n] = next_node_buffers_maximum[n];
|
| 1201 |
|
|
else
|
| 1202 |
|
|
next_node_buffers_free[n] += free;
|
| 1203 |
|
|
|
| 1204 |
|
|
//Free data packets
|
| 1205 |
|
|
|
| 1206 |
|
|
//Generate a random free value that has a maximum of 3
|
| 1207 |
|
|
tmp = rand() % 20;
|
| 1208 |
|
|
free = tmp;
|
| 1209 |
|
|
if(free > 3) free = 0;
|
| 1210 |
|
|
|
| 1211 |
|
|
//Add the value to the number of free buffers (and saturated at the maximum)
|
| 1212 |
|
|
if((next_node_databuffers_free[n] + free) > next_node_buffers_maximum[n])
|
| 1213 |
|
|
next_node_databuffers_free[n] = next_node_buffers_maximum[n];
|
| 1214 |
|
|
else
|
| 1215 |
|
|
next_node_databuffers_free[n] += free;
|
| 1216 |
|
|
}
|
| 1217 |
|
|
}
|
| 1218 |
|
|
|
| 1219 |
|
|
void flow_control_l2_tb::manage_history(){
|
| 1220 |
|
|
//Start by erasing packet acked in the history
|
| 1221 |
|
|
bool done = false;
|
| 1222 |
|
|
|
| 1223 |
|
|
if(!resetx.read()){
|
| 1224 |
|
|
history_ack_value = 0;
|
| 1225 |
|
|
history_ignore_nop_crc = false;
|
| 1226 |
|
|
history_crc_next = false;
|
| 1227 |
|
|
history_data_count = 0;
|
| 1228 |
|
|
current_history_entry.data_size = 0;
|
| 1229 |
|
|
}
|
| 1230 |
|
|
|
| 1231 |
|
|
while(!history.empty() && !done){
|
| 1232 |
|
|
sc_uint<8> current_ack_value = history.front().nop_ack_value;
|
| 1233 |
|
|
int diff = ((int)(cd_nop_ack_value_fc.read() - current_ack_value)+256) % 256;
|
| 1234 |
|
|
if(diff < 128){
|
| 1235 |
|
|
//cout << "Popping history" << endl;
|
| 1236 |
|
|
//cout << "cd_nop_ack_value_fc: " << cd_nop_ack_value_fc.read() << " current_ack_value: " << current_ack_value << endl;
|
| 1237 |
|
|
history.pop_front();
|
| 1238 |
|
|
}
|
| 1239 |
|
|
else done = true;
|
| 1240 |
|
|
}
|
| 1241 |
|
|
|
| 1242 |
|
|
//Add entries to the history
|
| 1243 |
|
|
if(!retry_sequence && resetx.read()){
|
| 1244 |
|
|
if(lk_consume_fc.read()){
|
| 1245 |
|
|
if(history_ignore_nop_crc){
|
| 1246 |
|
|
history_ignore_nop_crc = false;
|
| 1247 |
|
|
}
|
| 1248 |
|
|
else if(history_second_dword_next){
|
| 1249 |
|
|
history_second_dword_next = false;
|
| 1250 |
|
|
current_history_entry.pkt.range(63,32) = fc_dword_lk.read();
|
| 1251 |
|
|
if(current_history_entry.data_size == 0) history_crc_next = true;
|
| 1252 |
|
|
}
|
| 1253 |
|
|
else if(history_crc_next){
|
| 1254 |
|
|
history_crc_next = false;
|
| 1255 |
|
|
current_history_entry.crc = (int)(sc_uint<32>)fc_dword_lk.read();
|
| 1256 |
|
|
//cout << "History entry pushed in" << endl;
|
| 1257 |
|
|
history.push_back(current_history_entry);
|
| 1258 |
|
|
}
|
| 1259 |
|
|
else if(history_data_count != current_history_entry.data_size){
|
| 1260 |
|
|
//Means we have a nop
|
| 1261 |
|
|
if(fc_lctl_lk.read()){
|
| 1262 |
|
|
history_ignore_nop_crc = true;
|
| 1263 |
|
|
}
|
| 1264 |
|
|
else{
|
| 1265 |
|
|
current_history_entry.data[history_data_count++] = (int)(sc_uint<32>)fc_dword_lk.read();
|
| 1266 |
|
|
if(history_data_count == current_history_entry.data_size)
|
| 1267 |
|
|
history_crc_next = true;
|
| 1268 |
|
|
}
|
| 1269 |
|
|
}
|
| 1270 |
|
|
else{
|
| 1271 |
|
|
if(fc_dword_lk.read().range(5,0) != 0)
|
| 1272 |
|
|
{
|
| 1273 |
|
|
//cout << "HISTORY: Adding packet: " << fc_dword_lk.read().to_string(SC_HEX) << endl;
|
| 1274 |
|
|
sc_bv<64> pkt = fc_dword_lk.read();
|
| 1275 |
|
|
current_history_entry.pkt = pkt;
|
| 1276 |
|
|
PacketCommand cmd = getPacketCommand(pkt.range(5,0));
|
| 1277 |
|
|
history_second_dword_next = !isDwordPacket(pkt,cmd);
|
| 1278 |
|
|
if(hasDataAssociated(cmd)){
|
| 1279 |
|
|
current_history_entry.data_size = (int)getDataLengthm1(pkt) + 1;
|
| 1280 |
|
|
}
|
| 1281 |
|
|
else{
|
| 1282 |
|
|
current_history_entry.data_size = 0;
|
| 1283 |
|
|
}
|
| 1284 |
|
|
history_crc_next = !history_second_dword_next && current_history_entry.data_size == 0;
|
| 1285 |
|
|
history_ack_value = (history_ack_value + 1) % 256;
|
| 1286 |
|
|
current_history_entry.nop_ack_value = history_ack_value;
|
| 1287 |
|
|
history_data_count = 0;
|
| 1288 |
|
|
}
|
| 1289 |
|
|
else{
|
| 1290 |
|
|
history_ignore_nop_crc = true;
|
| 1291 |
|
|
}
|
| 1292 |
|
|
}
|
| 1293 |
|
|
}
|
| 1294 |
|
|
}
|
| 1295 |
|
|
}
|
| 1296 |
|
|
|
| 1297 |
|
|
void flow_control_l2_tb::clear_next_node_information(){
|
| 1298 |
|
|
//This is the number of buffers that are free (command and data)
|
| 1299 |
|
|
for(int n = 0; n < 3; n++){
|
| 1300 |
|
|
next_node_buffers_free[n] = next_node_buffers_maximum[n];
|
| 1301 |
|
|
next_node_databuffers_free[3] = next_node_databuffers_maximum[n];
|
| 1302 |
|
|
}
|
| 1303 |
|
|
|
| 1304 |
|
|
for(int n = 0; n < 3; n++){
|
| 1305 |
|
|
//This is the number of buffers that have been advertised as being free through
|
| 1306 |
|
|
//nops as seen by the next node (does not take into account the nop delay)
|
| 1307 |
|
|
next_node_buffers_advertised[n] = 0;
|
| 1308 |
|
|
next_node_databuffers_advertised[n] = 0;
|
| 1309 |
|
|
|
| 1310 |
|
|
//This is the number of buffers that have been advertised as being free through
|
| 1311 |
|
|
//nops as seen by the current node (takes into account the nop delay)
|
| 1312 |
|
|
buffers_available[n] = 0;
|
| 1313 |
|
|
databuffers_available[n] = 0;
|
| 1314 |
|
|
}
|
| 1315 |
|
|
|
| 1316 |
|
|
next_node_ack_value = 0;
|
| 1317 |
|
|
next_node_ack_value_pending = 0;
|
| 1318 |
|
|
user_packets.clear();
|
| 1319 |
|
|
user_data[0].clear();user_data[1].clear();user_data[2].clear();
|
| 1320 |
|
|
expected_output.clear();
|
| 1321 |
|
|
}
|
| 1322 |
|
|
|
| 1323 |
|
|
void flow_control_l2_tb::generate_random_response(sc_bv<32> &pkt, unsigned &data_size){
|
| 1324 |
|
|
int type = rand() % 2;
|
| 1325 |
|
|
sc_bv<6> command;
|
| 1326 |
|
|
sc_uint<4> data_size_m1;
|
| 1327 |
|
|
switch(type){
|
| 1328 |
|
|
case 0:
|
| 1329 |
|
|
//RdResponse
|
| 1330 |
|
|
data_size_m1 = rand() % 16;
|
| 1331 |
|
|
data_size = (unsigned)data_size_m1 + 1;
|
| 1332 |
|
|
getRandomVector(pkt);
|
| 1333 |
|
|
command = "110000";
|
| 1334 |
|
|
pkt.range(5,0) = command;
|
| 1335 |
|
|
pkt.range(25,22) = data_size_m1;
|
| 1336 |
|
|
break;
|
| 1337 |
|
|
case 1:
|
| 1338 |
|
|
//TargetDone
|
| 1339 |
|
|
data_size = 0;
|
| 1340 |
|
|
getRandomVector(pkt);
|
| 1341 |
|
|
command = "110011";
|
| 1342 |
|
|
pkt.range(5,0) = command;
|
| 1343 |
|
|
}
|
| 1344 |
|
|
}
|
| 1345 |
|
|
|
| 1346 |
|
|
void flow_control_l2_tb::generate_random_posted(sc_bv<64> &pkt, unsigned &data_size){
|
| 1347 |
|
|
int type = rand() % 3;
|
| 1348 |
|
|
sc_bv<6> command;
|
| 1349 |
|
|
sc_uint<4> data_size_m1;
|
| 1350 |
|
|
switch(type){
|
| 1351 |
|
|
case 0:
|
| 1352 |
|
|
//Posted write
|
| 1353 |
|
|
data_size_m1 = rand() % 16;
|
| 1354 |
|
|
data_size = (unsigned)data_size_m1 + 1;
|
| 1355 |
|
|
getRandomVector(pkt);
|
| 1356 |
|
|
command = "101";
|
| 1357 |
|
|
pkt.range(5,3) = command;
|
| 1358 |
|
|
pkt.range(25,22) = data_size_m1;
|
| 1359 |
|
|
|
| 1360 |
|
|
//Never create a chain packet. If it is desired to test
|
| 1361 |
|
|
//chains, they must be explicitely generated for the purpose of
|
| 1362 |
|
|
//that test
|
| 1363 |
|
|
pkt[19] = false;
|
| 1364 |
|
|
break;
|
| 1365 |
|
|
case 1:
|
| 1366 |
|
|
//Broadcast
|
| 1367 |
|
|
data_size = 0;
|
| 1368 |
|
|
getRandomVector(pkt);
|
| 1369 |
|
|
command = "111010";
|
| 1370 |
|
|
pkt.range(5,0) = command;
|
| 1371 |
|
|
break;
|
| 1372 |
|
|
case 2:
|
| 1373 |
|
|
//Fence
|
| 1374 |
|
|
data_size = 0;
|
| 1375 |
|
|
getRandomVector(pkt);
|
| 1376 |
|
|
pkt.range(63,32) = 0;
|
| 1377 |
|
|
command = "111100";
|
| 1378 |
|
|
pkt.range(5,0) = command;
|
| 1379 |
|
|
}
|
| 1380 |
|
|
}
|
| 1381 |
|
|
|
| 1382 |
|
|
void flow_control_l2_tb::generate_random_nposted(sc_bv<64> &pkt, unsigned &data_size){
|
| 1383 |
|
|
int type = rand() % 5;
|
| 1384 |
|
|
|
| 1385 |
|
|
bool dword_read = true;
|
| 1386 |
|
|
sc_uint<4> data_size_m1 = rand() % 16;
|
| 1387 |
|
|
data_size = (unsigned)data_size_m1 + 1;
|
| 1388 |
|
|
switch(type){
|
| 1389 |
|
|
case 0:
|
| 1390 |
|
|
{
|
| 1391 |
|
|
//NPosted write
|
| 1392 |
|
|
getRandomVector(pkt);
|
| 1393 |
|
|
sc_bv<3> command = "001";
|
| 1394 |
|
|
pkt.range(5,3) = command;
|
| 1395 |
|
|
pkt.range(25,22) = data_size_m1;
|
| 1396 |
|
|
}
|
| 1397 |
|
|
break;
|
| 1398 |
|
|
case 1:
|
| 1399 |
|
|
//Read Byte
|
| 1400 |
|
|
dword_read = false;
|
| 1401 |
|
|
case 2:
|
| 1402 |
|
|
{
|
| 1403 |
|
|
//Read Dword
|
| 1404 |
|
|
getRandomVector(pkt);
|
| 1405 |
|
|
sc_bv<2> command = "01";
|
| 1406 |
|
|
pkt.range(5,4) = command;
|
| 1407 |
|
|
pkt[2] = dword_read;
|
| 1408 |
|
|
pkt.range(25,22) = data_size_m1;
|
| 1409 |
|
|
data_size = 0;
|
| 1410 |
|
|
}
|
| 1411 |
|
|
break;
|
| 1412 |
|
|
case 3:
|
| 1413 |
|
|
{
|
| 1414 |
|
|
//Atomic
|
| 1415 |
|
|
getRandomVector(pkt);
|
| 1416 |
|
|
sc_bv<6> command = "111101";
|
| 1417 |
|
|
pkt.range(5,0) = command;
|
| 1418 |
|
|
pkt.range(25,22) = data_size_m1;
|
| 1419 |
|
|
}
|
| 1420 |
|
|
break;
|
| 1421 |
|
|
case 4:
|
| 1422 |
|
|
{
|
| 1423 |
|
|
//Flush
|
| 1424 |
|
|
data_size = 0;
|
| 1425 |
|
|
getRandomVector(pkt);
|
| 1426 |
|
|
pkt.range(63,32) = 0;
|
| 1427 |
|
|
sc_bv<6> command = "000010";
|
| 1428 |
|
|
pkt.range(5,0) = command;
|
| 1429 |
|
|
}
|
| 1430 |
|
|
}
|
| 1431 |
|
|
}
|
| 1432 |
|
|
|
| 1433 |
|
|
VirtualChannel flow_control_l2_tb::generate_random_packet(sc_bv<64> &pkt, unsigned &data_size){
|
| 1434 |
|
|
|
| 1435 |
|
|
int vc = rand() % 3;
|
| 1436 |
|
|
switch(vc){
|
| 1437 |
|
|
case VC_POSTED:
|
| 1438 |
|
|
generate_random_posted(pkt,data_size);
|
| 1439 |
|
|
break;
|
| 1440 |
|
|
case VC_NON_POSTED:
|
| 1441 |
|
|
generate_random_nposted(pkt,data_size);
|
| 1442 |
|
|
break;
|
| 1443 |
|
|
default:
|
| 1444 |
|
|
sc_bv<32> r_pkt;
|
| 1445 |
|
|
generate_random_response(r_pkt,data_size);
|
| 1446 |
|
|
pkt = 0;
|
| 1447 |
|
|
pkt.range(31,0) = r_pkt;
|
| 1448 |
|
|
}
|
| 1449 |
|
|
return vc;
|
| 1450 |
|
|
}
|
| 1451 |
|
|
|
| 1452 |
|
|
|
| 1453 |
|
|
void flow_control_l2_tb::getRandomVector(sc_bv<32> &vector){
|
| 1454 |
|
|
vector.range(14,0) = sc_uint<15>(rand());
|
| 1455 |
|
|
vector.range(29,15) = sc_uint<15>(rand());
|
| 1456 |
|
|
vector.range(31,30) = sc_uint<2>(rand());
|
| 1457 |
|
|
}
|
| 1458 |
|
|
|
| 1459 |
|
|
void flow_control_l2_tb::getRandomVector(sc_bv<64> &vector){
|
| 1460 |
|
|
for(int n = 0; n < 4; n++)
|
| 1461 |
|
|
vector.range(15*(n+1) - 1,15*n) = sc_uint<15>(rand());
|
| 1462 |
|
|
vector.range(63,60) = sc_uint<4>(rand());
|
| 1463 |
|
|
}
|
| 1464 |
|
|
|
| 1465 |
|
|
void flow_control_l2_tb::add_ui_data_packet(unsigned datalength,
|
| 1466 |
|
|
VirtualChannel ui_vc,
|
| 1467 |
|
|
sc_bv<64> &associated_control_packet){
|
| 1468 |
|
|
PacketData data;
|
| 1469 |
|
|
data.associated_control_pkt = associated_control_packet;
|
| 1470 |
|
|
data.size = datalength;
|
| 1471 |
|
|
for(unsigned n = 0; n < datalength; n++){
|
| 1472 |
|
|
data.dwords[n] =
|
| 1473 |
|
|
(rand() & 0x7FFF) | ((rand() & 0x7FFF ) << 15) | ((rand() & 0x3 ) << 30);
|
| 1474 |
|
|
}
|
| 1475 |
|
|
//cout << "ADDED UI DATA ENTRY: " << data.associated_control_pkt.to_string(SC_HEX)
|
| 1476 |
|
|
// << " Datalength: " << data.size << endl;
|
| 1477 |
|
|
user_data[ui_vc].push_back(data);
|
| 1478 |
|
|
}
|
| 1479 |
|
|
|
| 1480 |
|
|
void flow_control_l2_tb::update_databuffer_entry(unsigned datalength,
|
| 1481 |
|
|
VirtualChannel ui_vc,
|
| 1482 |
|
|
sc_uint<4> &databuffer_address)
|
| 1483 |
|
|
{
|
| 1484 |
|
|
databuffer_data.vc = ui_vc;
|
| 1485 |
|
|
databuffer_data.size = datalength;
|
| 1486 |
|
|
for(unsigned n = 0; n < datalength; n++){
|
| 1487 |
|
|
databuffer_data.dwords[n] =
|
| 1488 |
|
|
(rand() & 0x7FFF) | ((rand() & 0x7FFF ) << 15) | ((rand() & 0x3 ) << 30);
|
| 1489 |
|
|
}
|
| 1490 |
|
|
databuffer_data.address = databuffer_address;
|
| 1491 |
|
|
}
|
| 1492 |
|
|
|
| 1493 |
|
|
void flow_control_l2_tb::calculate_crc1(sc_bv<32> dword,bool lctl, bool hctl){
|
| 1494 |
|
|
sc_bv<34> data;
|
| 1495 |
|
|
data[33] = hctl;
|
| 1496 |
|
|
data.range(32,17) = dword.range(31,16);
|
| 1497 |
|
|
data[16] = lctl;
|
| 1498 |
|
|
data.range(15,0) = dword.range(15,0);
|
| 1499 |
|
|
calculate_crc(crc1,data);
|
| 1500 |
|
|
}
|
| 1501 |
|
|
|
| 1502 |
|
|
void flow_control_l2_tb::calculate_crc2(sc_bv<32> dword,bool lctl, bool hctl){
|
| 1503 |
|
|
sc_bv<34> data;
|
| 1504 |
|
|
data[33] = hctl;
|
| 1505 |
|
|
data.range(32,17) = dword.range(31,16);
|
| 1506 |
|
|
data[16] = lctl;
|
| 1507 |
|
|
data.range(15,0) = dword.range(15,0);
|
| 1508 |
|
|
calculate_crc(crc2,data);
|
| 1509 |
|
|
}
|
| 1510 |
|
|
|
| 1511 |
|
|
void flow_control_l2_tb::calculate_crc(unsigned &crc,sc_bv<34> &data){
|
| 1512 |
|
|
static unsigned poly = 0x04C11DB7;
|
| 1513 |
|
|
|
| 1514 |
|
|
for(int i = 0; i < 34; i++){
|
| 1515 |
|
|
/* xor highest bit w/ message: */
|
| 1516 |
|
|
unsigned tmp = ((crc >> 31) & 1) ^ ( ((sc_bit)data[i]) ? 1 : 0);
|
| 1517 |
|
|
|
| 1518 |
|
|
/* substract poly if greater: */
|
| 1519 |
|
|
crc = (tmp) ? (crc << 1) ^ poly : ((crc << 1) | tmp);
|
| 1520 |
|
|
}
|
| 1521 |
|
|
}
|
| 1522 |
|
|
|
| 1523 |
|
|
ostream &operator<<(ostream &out,const flow_control_l2_tb::FlowControlStatus fc_status){
|
| 1524 |
|
|
switch(fc_status){
|
| 1525 |
|
|
case flow_control_l2_tb::FC_SENDING_CSR:
|
| 1526 |
|
|
out << "FC_SENDING_CSR";
|
| 1527 |
|
|
break;
|
| 1528 |
|
|
case flow_control_l2_tb::FC_SENDING_EH:
|
| 1529 |
|
|
out << "FC_SENDING_EH";
|
| 1530 |
|
|
break;
|
| 1531 |
|
|
case flow_control_l2_tb::FC_SENDING_FWD:
|
| 1532 |
|
|
out << "FC_SENDING_FWD";
|
| 1533 |
|
|
break;
|
| 1534 |
|
|
case flow_control_l2_tb::FC_SENDING_UI:
|
| 1535 |
|
|
out << "FC_SENDING_UI";
|
| 1536 |
|
|
break;
|
| 1537 |
|
|
case flow_control_l2_tb::FC_NONE:
|
| 1538 |
|
|
out << "FC_NONE";
|
| 1539 |
|
|
break;
|
| 1540 |
|
|
default:
|
| 1541 |
|
|
out << "Invalid FlowControlStatus value";
|
| 1542 |
|
|
}
|
| 1543 |
|
|
return out;
|
| 1544 |
|
|
}
|
| 1545 |
|
|
|
| 1546 |
|
|
void flow_control_l2_tb::add_expected_crc_for_packet(PacketData &data){
|
| 1547 |
|
|
unsigned tmp;
|
| 1548 |
|
|
tmp = crc2;
|
| 1549 |
|
|
crc2 = 0xFFFFFFFF;
|
| 1550 |
|
|
|
| 1551 |
|
|
calculate_crc2(data.associated_control_pkt.range(31,0),true,true);
|
| 1552 |
|
|
PacketCommand cmd = getPacketCommand(data.associated_control_pkt.range(5,0));
|
| 1553 |
|
|
if(!isDwordPacket(data.associated_control_pkt,cmd))
|
| 1554 |
|
|
calculate_crc2(data.associated_control_pkt.range(63,32),true,true);
|
| 1555 |
|
|
|
| 1556 |
|
|
for(int n = 0; n < data.size; n++){
|
| 1557 |
|
|
calculate_crc2(data.dwords[n],false,false);
|
| 1558 |
|
|
}
|
| 1559 |
|
|
|
| 1560 |
|
|
OutputDword o;
|
| 1561 |
|
|
o.dword = ~crc2;
|
| 1562 |
|
|
o.lctl = false;
|
| 1563 |
|
|
o.hctl = true;
|
| 1564 |
|
|
expected_output.push_front(o);
|
| 1565 |
|
|
|
| 1566 |
|
|
crc2 = tmp;
|
| 1567 |
|
|
}
|
| 1568 |
|
|
|
| 1569 |
|
|
|
| 1570 |
|
|
|
