| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: mac_mon.vr |
| 4 | // Copyright (C) 1995-2007 Sun Microsystems, Inc. All Rights Reserved |
| 5 | // 4150 Network Circle, Santa Clara, California 95054, U.S.A. |
| 6 | // |
| 7 | // * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 8 | // |
| 9 | // This program is free software; you can redistribute it and/or modify |
| 10 | // it under the terms of the GNU General Public License as published by |
| 11 | // the Free Software Foundation; version 2 of the License. |
| 12 | // |
| 13 | // This program is distributed in the hope that it will be useful, |
| 14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | // GNU General Public License for more details. |
| 17 | // |
| 18 | // You should have received a copy of the GNU General Public License |
| 19 | // along with this program; if not, write to the Free Software |
| 20 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 21 | // |
| 22 | // For the avoidance of doubt, and except that if any non-GPL license |
| 23 | // choice is available it will apply instead, Sun elects to use only |
| 24 | // the General Public License version 2 (GPLv2) at this time for any |
| 25 | // software where a choice of GPL license versions is made |
| 26 | // available with the language indicating that GPLv2 or any later version |
| 27 | // may be used, or where a choice of which version of the GPL is applied is |
| 28 | // otherwise unspecified. |
| 29 | // |
| 30 | // Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 31 | // CA 95054 USA or visit www.sun.com if you need additional information or |
| 32 | // have any questions. |
| 33 | // |
| 34 | // ========== Copyright Header End ============================================ |
| 35 | #include <vera_defines.vrh> |
| 36 | #include "mac_mon_if.vri" |
| 37 | //#include "cMesg.vrh" |
| 38 | |
| 39 | // constants that needs to be varied based on observations |
| 40 | #define MAC_MON_TIMESCALE_ADJUST 1 // to make it nsec |
| 41 | |
| 42 | // getting the following defines from plus args way. |
| 43 | |
| 44 | |
| 45 | extern bit [3:0] rtl_mac; |
| 46 | extern bit reset_complete; |
| 47 | extern event RX_chk_done; |
| 48 | extern event TX_rvcd_allpkts[4]; |
| 49 | //extern Mesg be_msg; |
| 50 | |
| 51 | class MacMonitorStats { |
| 52 | |
| 53 | string name = "MacMonStats"; |
| 54 | integer time_offset = -1; |
| 55 | |
| 56 | integer index=0; // also can be used as pkt count |
| 57 | |
| 58 | // counters for each transaction |
| 59 | bit [63:0] raw_time_stamp[1024*16]; |
| 60 | bit [63:0] raw_byte_count[1024*16]; |
| 61 | bit [63:0] raw_bw[1024*16]; |
| 62 | |
| 63 | bit [63:0] time_stamp[]; |
| 64 | bit [63:0] byte_count[]; |
| 65 | |
| 66 | bit [63:0] raw_bandwidth[1024*16]; |
| 67 | bit [63:0] raw_total_byte_count=0; |
| 68 | |
| 69 | bit [3:0] status[]; |
| 70 | integer moving_average_bandwidth[]; |
| 71 | bit skip_flag[]; // used to skip unstable bw at the end |
| 72 | |
| 73 | // over all statistics after skipping start and end unsstable bandwidths |
| 74 | bit [63:0] total_time=0; |
| 75 | bit [63:0] total_byte_count=0; |
| 76 | bit [63:0] total_bandwidth=0; |
| 77 | |
| 78 | integer percent_bw_skip; |
| 79 | integer moving_average_window; |
| 80 | |
| 81 | task display_transaction((integer index = -1)); |
| 82 | task display_transaction_short((integer index = -1)); |
| 83 | task display_short((integer index = -1)); |
| 84 | task calculate_moving_average_bandwidth(); |
| 85 | task update_total_time(); |
| 86 | task update_total_byte_count(); |
| 87 | task update_total_bandwidth(); |
| 88 | task update_raw_bandwidth(); |
| 89 | function bit [63:0] get_time_in_nsec(); |
| 90 | function bit [63:0] get_moving_average_time(); |
| 91 | function bit [63:0] get_moving_average_byte_count(); |
| 92 | function bit [63:0] get_difference(integer val1, integer val2); |
| 93 | |
| 94 | task new(string name_in, integer percent_bw_skip_in, integer moving_average_window_in) { |
| 95 | integer i; |
| 96 | name = name_in; |
| 97 | percent_bw_skip = percent_bw_skip_in; |
| 98 | moving_average_window = moving_average_window_in; |
| 99 | } |
| 100 | |
| 101 | } // class MacMonitorStats |
| 102 | |
| 103 | // skip calculations until bandwidth stabilizes |
| 104 | // Example : preBw = 20, currBw = 40, skipPercent = 10 |
| 105 | // if (currBw-prevBw)*100/currBw > skipPercent) then skip bw calculations |
| 106 | task MacMonitorStats::calculate_moving_average_bandwidth() { |
| 107 | |
| 108 | integer i; |
| 109 | |
| 110 | if(index<=moving_average_window) { |
| 111 | skip_flag[index] = 1; |
| 112 | moving_average_bandwidth[index] = 0; |
| 113 | return; |
| 114 | } else { |
| 115 | skip_flag[index] = 0; |
| 116 | } |
| 117 | |
| 118 | // -ve and divide by zero error |
| 119 | if(get_moving_average_time()<=0) { |
| 120 | moving_average_bandwidth[index] = moving_average_bandwidth[index-1]; |
| 121 | skip_flag[index] = skip_flag[index-1]; |
| 122 | return; |
| 123 | } |
| 124 | |
| 125 | moving_average_bandwidth[index] = (get_moving_average_byte_count() * 1000 * 8) / // Mbps |
| 126 | get_moving_average_time(); |
| 127 | |
| 128 | } |
| 129 | |
| 130 | function bit [63:0] MacMonitorStats::get_difference(integer val1, integer val2) { |
| 131 | if(val1 < val2) get_difference = val2 - val1; |
| 132 | else get_difference = val1 - val2; |
| 133 | } |
| 134 | |
| 135 | function bit [63:0] MacMonitorStats::get_moving_average_time() { |
| 136 | integer i; |
| 137 | get_moving_average_time = 0; |
| 138 | if(index<=moving_average_window) return; |
| 139 | get_moving_average_time = time_stamp[index] - |
| 140 | time_stamp[index-moving_average_window]; |
| 141 | } |
| 142 | |
| 143 | function bit [63:0] MacMonitorStats::get_moving_average_byte_count() { |
| 144 | integer i; |
| 145 | get_moving_average_byte_count = 0; |
| 146 | if(index<=moving_average_window) return; |
| 147 | for(i=index-moving_average_window+1;i<=index;i++) |
| 148 | get_moving_average_byte_count += byte_count[i]; |
| 149 | } |
| 150 | |
| 151 | task MacMonitorStats::update_total_time() { |
| 152 | if(index<=moving_average_window) { total_time = 0; return; } |
| 153 | if(skip_flag[index]) return; |
| 154 | total_time = time_stamp[index]; |
| 155 | } |
| 156 | |
| 157 | task MacMonitorStats::update_total_byte_count() { |
| 158 | if(index<moving_average_window) { total_byte_count = 0; return; } |
| 159 | if(skip_flag[index]) return; |
| 160 | total_byte_count += byte_count[index]; |
| 161 | } |
| 162 | |
| 163 | task MacMonitorStats::update_total_bandwidth() { |
| 164 | if(index<=moving_average_window) { total_bandwidth = 0; return; } |
| 165 | if(skip_flag[index]) return; |
| 166 | // -ve and divide by zero error |
| 167 | if(total_time <= 0) { total_bandwidth = 0; return; } |
| 168 | total_bandwidth = (total_byte_count * 1000 * 8) / total_time ; // Mbps |
| 169 | if(total_bandwidth<0) { |
| 170 | printf("<%0d> %s: ERROR: update_total_bandwidth: negative bandwidth detected!\n", |
| 171 | get_time(LO), name); |
| 172 | printf("total_bandwidth:%0d total_byte_count:%0d total_time:%0d\n", |
| 173 | total_bandwidth, total_byte_count, total_time); |
| 174 | } |
| 175 | //printf("DEBUG: total_byte_count:%0d total_time:%0d total_bandwidth:%0d, index:%0d\n", |
| 176 | // total_byte_count, total_time, total_bandwidth, index); |
| 177 | } |
| 178 | |
| 179 | task MacMonitorStats::update_raw_bandwidth() { |
| 180 | // -ve and divide by zero error |
| 181 | if(get_time_in_nsec() <= 0) { raw_bandwidth[index] = 0; return; } |
| 182 | raw_bandwidth[index] = (raw_total_byte_count * 1000*8) / get_time_in_nsec(); // Mbps |
| 183 | if(total_bandwidth<0) { |
| 184 | printf("<%0d> %s: ERROR: update_raw_bandwidth: negative bandwidth detected!\n", |
| 185 | get_time(LO), name); |
| 186 | printf("raw_bandwidth[%0d]:%0d raw_total_byte_count:%0d total_time:%0d\n", |
| 187 | index, raw_bandwidth[index], raw_total_byte_count, get_time_in_nsec()); |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | task MacMonitorStats::display_transaction((integer index_in = -1)) { |
| 192 | integer i; |
| 193 | if(index_in == -1) { index_in = index; } |
| 194 | printf("===============================================================\n"); |
| 195 | printf("<%0d> %s: transaction statistics for index:%0d\n", |
| 196 | get_time(LO), name, index_in); |
| 197 | printf("time_stamp:%0d usec, length:%0d, status:%0d, skip_flag[%0d]:%b, rawBw:%0d\n", |
| 198 | time_stamp[index_in], byte_count[index_in], |
| 199 | status[index_in], index_in, skip_flag[index_in], raw_bandwidth[index_in]); |
| 200 | printf("tot_time:%0d usce tot_byte_cnt:%0d, tot_bw:%0d Mbps, MA_bw:%0d Mbps\n", |
| 201 | total_time, total_byte_count, total_bandwidth, moving_average_bandwidth[index_in]); |
| 202 | printf("===============================================================\n"); |
| 203 | } |
| 204 | |
| 205 | task MacMonitorStats::display_transaction_short((integer index_in = -1)) { |
| 206 | integer i; |
| 207 | bit [63:0] bits=0, time_diff; |
| 208 | integer moving_average_window_for_display; |
| 209 | if(index_in == -1) { index_in = index; } |
| 210 | |
| 211 | if(index_in < (moving_average_window*2)) { |
| 212 | raw_bw[index_in] = 0; |
| 213 | } |
| 214 | else { |
| 215 | for(i=moving_average_window;i<=index_in-moving_average_window-1;i++) { |
| 216 | bits += raw_byte_count[i]*8; |
| 217 | } |
| 218 | // Equation |
| 219 | // BW = SumOfLengths(MAW, index-MAW-1) / differenceInTime(index-MAW, MAW) |
| 220 | // |
| 221 | |
| 222 | time_diff = raw_time_stamp[index_in-moving_average_window] - |
| 223 | raw_time_stamp[moving_average_window]; |
| 224 | |
| 225 | // divide by zero error |
| 226 | if(time_diff <= 0) { |
| 227 | raw_bw[index_in] = 0; |
| 228 | } else { |
| 229 | raw_bw[index_in] = (bits*1000) / time_diff; |
| 230 | } |
| 231 | } |
| 232 | |
| 233 | |
| 234 | if(index_in-moving_average_window < 0) { |
| 235 | moving_average_window_for_display = index_in; |
| 236 | } else { |
| 237 | moving_average_window_for_display = moving_average_window; |
| 238 | } |
| 239 | |
| 240 | printf("<%0d> %s: index:%0d, start_time:%0d (ns), end_time:%0d (ns), lenght:%0d (bits), bw:%0d (Mbps)\n", |
| 241 | get_time(LO), name, index_in, raw_time_stamp[moving_average_window_for_display], |
| 242 | raw_time_stamp[index_in-moving_average_window_for_display], bits, raw_bw[index_in] ); |
| 243 | } |
| 244 | |
| 245 | task MacMonitorStats::display_short((integer index_in = -1)) { |
| 246 | integer i; |
| 247 | if(index_in == -1) { index_in = index; } |
| 248 | if(index_in == 0) { |
| 249 | printf("================= stats for %s ==================\n", name); |
| 250 | printf("index\tbyteCnt\ttime-us\tTotBw\tMA_BW\tskpFlg\tRawBw\tname:%0s\n", name); |
| 251 | } |
| 252 | |
| 253 | printf("%0d\t%0d\t%0d\t%0d\t%0d\t%b\t%0d\t%s\n", |
| 254 | index_in,total_byte_count,total_time,total_bandwidth, |
| 255 | moving_average_bandwidth[index_in], |
| 256 | skip_flag[index_in],raw_bandwidth[index_in],name); |
| 257 | } |
| 258 | |
| 259 | function bit [63:0] MacMonitorStats::get_time_in_nsec() { |
| 260 | if(time_offset == -1) { get_time_in_nsec = 0; time_offset = get_time(LO);} |
| 261 | else get_time_in_nsec = (get_time(LO)-time_offset) / MAC_MON_TIMESCALE_ADJUST; |
| 262 | } |
| 263 | |
| 264 | class MacMonitor { |
| 265 | |
| 266 | integer debugLevel; |
| 267 | string name = "MAC_MON"; |
| 268 | bit [3:0] valid_mac_ports; // from vera_top.vr @ env/vera/top/vera_top.vr |
| 269 | integer total_port_weights; |
| 270 | integer percent_bw_skip; |
| 271 | integer moving_average_window; |
| 272 | integer index; |
| 273 | integer total_num_packets_per_port = 0; |
| 274 | integer total_num_valid_mac_ports = 0; |
| 275 | integer report_bandwidth_mismatch_error = 0; |
| 276 | integer number_of_pkts_sent[4]; |
| 277 | integer number_of_pkts_rcvd[4]; |
| 278 | integer prev_length[4]; |
| 279 | string direction = "Rx"; // Tx/Rx |
| 280 | |
| 281 | //mac_mon_port myPort; |
| 282 | MacMonitorStats macMonStats[]; // index is: 0: port0 |
| 283 | // ........ |
| 284 | // 3: port3 |
| 285 | // 4: dma0 |
| 286 | // ........ |
| 287 | // 19: dma15 |
| 288 | // 20: total |
| 289 | |
| 290 | task run4everMonitorMacInterface(mac_mon_port myPort, bit[1:0] port_num, bit dv_asserted_high); |
| 291 | function bit [63:0] diff_values(integer val1, integer val2); |
| 292 | task display_results(); |
| 293 | task new ((integer debugLevelIn = 10), (string directionIn = "Rx")); |
| 294 | task store_transactions(bit [1:0] port_num, |
| 295 | bit [4:0] dma_num, |
| 296 | bit [13:0] length, |
| 297 | bit [3:0] status); |
| 298 | task report_bandwidth((bit one_time = 0)); |
| 299 | task report_bandwidth_periodically((integer period /*in us*/ = 100)); |
| 300 | |
| 301 | } // class MacMonitor |
| 302 | |
| 303 | task MacMonitor::new ((integer debugLevelIn = 10), (string directionIn = "Rx")) { |
| 304 | |
| 305 | string name_tmp; |
| 306 | integer i; |
| 307 | direction = directionIn; |
| 308 | debugLevel = debugLevelIn; |
| 309 | //myPort = mac_mon_port_bind; |
| 310 | |
| 311 | sprintf(name,"%s:%s", name, direction); |
| 312 | |
| 313 | while(reset_complete == 0) { repeat(100) @(posedge CLOCK); } |
| 314 | |
| 315 | if(get_plus_arg(CHECK,"MAC_MON_PERCENT_BW_SKIP=")) |
| 316 | percent_bw_skip = get_plus_arg(NUM,"MAC_MON_PERCENT_BW_SKIP="); |
| 317 | else |
| 318 | percent_bw_skip = 30; // default |
| 319 | |
| 320 | if(get_plus_arg(CHECK,"MAC_MON_MV_AVG_WINDOW=")) |
| 321 | moving_average_window = get_plus_arg(NUM,"MAC_MON_MV_AVG_WINDOW="); |
| 322 | else |
| 323 | moving_average_window = 30; // default |
| 324 | |
| 325 | if(get_plus_arg(CHECK,"MAC_MON_ENABLE_BANDWIDTH_MISMATCH_ERROR")) |
| 326 | report_bandwidth_mismatch_error = 1; |
| 327 | else |
| 328 | report_bandwidth_mismatch_error = 0; // default |
| 329 | |
| 330 | for(index=0;index<=3;index++) { |
| 331 | if(index>=0 && index<4) { sprintf(name_tmp,"macMon%0sPort%0dStats", direction, index); } |
| 332 | macMonStats[index] = new(name_tmp, percent_bw_skip, moving_average_window); |
| 333 | } |
| 334 | |
| 335 | // default values |
| 336 | number_of_pkts_sent[0] = 0; |
| 337 | number_of_pkts_sent[1] = 0; |
| 338 | number_of_pkts_sent[2] = 0; |
| 339 | number_of_pkts_sent[3] = 0; |
| 340 | |
| 341 | number_of_pkts_rcvd[0] = 0; |
| 342 | number_of_pkts_rcvd[1] = 0; |
| 343 | number_of_pkts_rcvd[2] = 0; |
| 344 | number_of_pkts_rcvd[3] = 0; |
| 345 | |
| 346 | prev_length[0] = 0; |
| 347 | prev_length[1] = 0; |
| 348 | prev_length[2] = 0; |
| 349 | prev_length[3] = 0; |
| 350 | |
| 351 | valid_mac_ports = rtl_mac; // from vera_top.vr @ env/vera/top/vera_top.vr |
| 352 | |
| 353 | for(i=0;i<4;i++) |
| 354 | if(valid_mac_ports[i]) |
| 355 | total_num_valid_mac_ports++; |
| 356 | |
| 357 | // divide by zero error check |
| 358 | if(total_num_valid_mac_ports <= 0) { |
| 359 | printf("<%0d> %s: ERROR : total_num_packets_per_port=%0d, rtl_mac:%b\n", |
| 360 | get_time(LO), name, total_num_packets_per_port, rtl_mac); |
| 361 | return; |
| 362 | } |
| 363 | |
| 364 | if(get_plus_arg(CHECK,"RXMAC_PKTCNT=")) |
| 365 | total_num_packets_per_port = get_plus_arg(NUM,"RXMAC_PKTCNT=")/total_num_valid_mac_ports; |
| 366 | |
| 367 | if(get_plus_arg(CHECK,"RXMAC_PORT0_PKTCNT=")) |
| 368 | number_of_pkts_sent[0] = get_plus_arg(NUM,"RXMAC_PORT0_PKTCNT="); |
| 369 | if(get_plus_arg(CHECK,"RXMAC_PORT1_PKTCNT=")) |
| 370 | number_of_pkts_sent[1] = get_plus_arg(NUM,"RXMAC_PORT1_PKTCNT="); |
| 371 | if(get_plus_arg(CHECK,"RXMAC_PORT2_PKTCNT=")) |
| 372 | number_of_pkts_sent[2] = get_plus_arg(NUM,"RXMAC_PORT2_PKTCNT="); |
| 373 | if(get_plus_arg(CHECK,"RXMAC_PORT3_PKTCNT=")) |
| 374 | number_of_pkts_sent[3] = get_plus_arg(NUM,"RXMAC_PORT3_PKTCNT="); |
| 375 | |
| 376 | for(i=0;i<4;i++) |
| 377 | if(!valid_mac_ports[i]) |
| 378 | number_of_pkts_sent[i] = 0; |
| 379 | |
| 380 | // divide by zero error |
| 381 | if(total_port_weights <= 0) { total_port_weights = 1; } |
| 382 | |
| 383 | |
| 384 | printf("<%0d> %s: ====================== instantiating ... ====================\n", |
| 385 | get_time(LO), name); |
| 386 | printf("%s moving average window:%0d, skip percentage :%0d, valid_mac_ports:%b\n", |
| 387 | name, moving_average_window, percent_bw_skip, valid_mac_ports); |
| 388 | printf("<%0d> %s: ====================== instantiating done ===================\n", |
| 389 | get_time(LO), name); |
| 390 | |
| 391 | fork |
| 392 | // Rx |
| 393 | if(valid_mac_ports[0] && (direction == "Rx")) { |
| 394 | run4everMonitorMacInterface(mac_mon_m0_rx_bind, 0, 0); |
| 395 | } |
| 396 | if(valid_mac_ports[1] && (direction == "Rx")) { |
| 397 | run4everMonitorMacInterface(mac_mon_m1_rx_bind, 1, 0); |
| 398 | } |
| 399 | // Tx |
| 400 | if(valid_mac_ports[0] && (direction == "Tx")) { |
| 401 | run4everMonitorMacInterface(mac_mon_m0_tx_bind, 0, 0); |
| 402 | } |
| 403 | if(valid_mac_ports[1] && (direction == "Tx")) { |
| 404 | run4everMonitorMacInterface(mac_mon_m1_tx_bind, 1, 0); |
| 405 | } |
| 406 | join none |
| 407 | |
| 408 | fork |
| 409 | report_bandwidth(); |
| 410 | join none |
| 411 | fork |
| 412 | report_bandwidth_periodically(); |
| 413 | join none |
| 414 | |
| 415 | } |
| 416 | |
| 417 | task MacMonitor::run4everMonitorMacInterface(mac_mon_port myPort, bit [1:0] port_num, bit dv_asserted_high) { |
| 418 | integer collect_data = 0; |
| 419 | integer packet_length = 0; |
| 420 | |
| 421 | while(1) { |
| 422 | @(posedge myPort.$clk); |
| 423 | if(dv_asserted_high == 0) { // 10G ports behavior |
| 424 | if(myPort.$dv == 0) { |
| 425 | collect_data = 1; |
| 426 | } else { |
| 427 | if(packet_length >= 64) { |
| 428 | packet_length = packet_length - 7; // remove Preamble |
| 429 | store_transactions(port_num, 0, packet_length, 0); |
| 430 | } |
| 431 | collect_data = 0; |
| 432 | packet_length = 0; |
| 433 | } |
| 434 | } else { // 1G port behavior |
| 435 | if(myPort.$dv == 1) { |
| 436 | collect_data = 1; |
| 437 | } else { |
| 438 | if(packet_length >= 64) { |
| 439 | packet_length = packet_length - 7; // remove Preamble |
| 440 | store_transactions(port_num, 0, packet_length, 0); |
| 441 | } |
| 442 | collect_data = 0; |
| 443 | packet_length = 0; |
| 444 | } |
| 445 | } |
| 446 | |
| 447 | if(collect_data == 1) { |
| 448 | packet_length++; |
| 449 | } |
| 450 | } // while |
| 451 | } |
| 452 | |
| 453 | task MacMonitor::store_transactions(bit [1:0] port_num, |
| 454 | bit [4:0] dma_num, |
| 455 | bit [13:0] length, |
| 456 | bit [3:0] status) { |
| 457 | integer index; |
| 458 | |
| 459 | |
| 460 | // counters for each transaction |
| 461 | printf("%s:store_transaction: port_num:%0d dma_num:%0d length:%0d time:%0d\n", |
| 462 | name, port_num, dma_num, length, {get_time(HI), get_time(LO)}); |
| 463 | |
| 464 | // update pkt cnt |
| 465 | if(prev_length[port_num] < 4096) { // Needed this since for Jumbo pkts we get 3 transations |
| 466 | number_of_pkts_rcvd[port_num]++; |
| 467 | prev_length[port_num] = length; |
| 468 | } |
| 469 | |
| 470 | |
| 471 | // update port stats |
| 472 | index = macMonStats[port_num].index; |
| 473 | macMonStats[port_num].raw_time_stamp[index] = {get_time(HI), get_time(LO)}; |
| 474 | macMonStats[port_num].raw_byte_count[index] = length; |
| 475 | macMonStats[port_num].time_stamp[index] = macMonStats[port_num].get_time_in_nsec(); |
| 476 | macMonStats[port_num].byte_count[index] = length; |
| 477 | macMonStats[port_num].raw_total_byte_count += length; |
| 478 | macMonStats[port_num].status[index] = status; |
| 479 | |
| 480 | macMonStats[port_num].calculate_moving_average_bandwidth(); |
| 481 | |
| 482 | macMonStats[port_num].update_total_byte_count(); |
| 483 | macMonStats[port_num].update_total_time(); |
| 484 | macMonStats[port_num].update_total_bandwidth(); |
| 485 | macMonStats[port_num].update_raw_bandwidth(); |
| 486 | |
| 487 | //macMonStats[port_num].display_transaction(); |
| 488 | macMonStats[port_num].display_transaction_short(); |
| 489 | macMonStats[port_num].display_short(); |
| 490 | |
| 491 | |
| 492 | macMonStats[port_num].index++; |
| 493 | |
| 494 | } // task MacMonitor::store_transactions |
| 495 | |
| 496 | |
| 497 | function bit [63:0] MacMonitor::diff_values(integer val1, integer val2) { |
| 498 | if(val1 > val2) { diff_values = val1 - val2; } |
| 499 | else { diff_values = val2 - val1; } |
| 500 | } |
| 501 | |
| 502 | task MacMonitor::report_bandwidth_periodically((integer period /*in us*/ = 100)) { |
| 503 | integer iterations = 1; |
| 504 | printf("<%0d> %s:report_bandwidth_periodically enabled. with period:%0d us \n", |
| 505 | get_time(LO), name, period); |
| 506 | while(1) { |
| 507 | while({get_time(HI), get_time(LO)} < |
| 508 | ((period*1000/MAC_MON_TIMESCALE_ADJUST) * (iterations))) |
| 509 | repeat(period) @(posedge CLOCK); |
| 510 | report_bandwidth(1); |
| 511 | iterations++; |
| 512 | repeat(100) @(posedge CLOCK); // to avoid infinite loop |
| 513 | } |
| 514 | } |
| 515 | |
| 516 | task MacMonitor::report_bandwidth ((bit one_time = 0)) { |
| 517 | integer port_pkt_length[]; |
| 518 | integer port_speed[]; |
| 519 | integer port_ipg[]; |
| 520 | bit [63:0] port_ideal_bw[4]; |
| 521 | bit [63:0] port_actual_bw[4]; |
| 522 | bit [63:0] total_ideal_bw=0; |
| 523 | bit [63:0] total_actual_bw=0; |
| 524 | integer i; |
| 525 | integer percentage_bw_to_ignore = 5; |
| 526 | integer percentage_bw_difference = 0; |
| 527 | |
| 528 | // reset values |
| 529 | for(i=0;i<4;i++) { |
| 530 | port_pkt_length[i] = 64; |
| 531 | if(i<2) port_speed[i] = 10000; |
| 532 | if(i>1) port_speed[i] = 1000; |
| 533 | port_ipg[i] = 11; |
| 534 | port_ideal_bw[i] = 0; |
| 535 | port_actual_bw[i] = 0; |
| 536 | } |
| 537 | |
| 538 | // wait for test to end the sim. |
| 539 | // Rx |
| 540 | if(one_time == 0 && direction == "Rx") { |
| 541 | printf("<%0d> %s: report_bandwidth : Waiting for RX_chk_done\n", get_time(LO), name); |
| 542 | sync (ALL, RX_chk_done); |
| 543 | printf("<%0d> %s: report_bandwidth : Done. Waiting for RX_chk_done\n", get_time(LO), name); |
| 544 | } |
| 545 | |
| 546 | // Tx |
| 547 | if(one_time == 0 && direction == "Tx") { |
| 548 | printf("<%0d> %s: report_bandwidth : Waiting for TX_rvcd_allpkts\n", get_time(LO), name); |
| 549 | if(rtl_mac[0]) { sync (ALL, TX_rvcd_allpkts[0]); } |
| 550 | //if(rtl_mac[1]) { sync (ALL, TX_rvcd_allpkts[1]); } |
| 551 | //if(rtl_mac[2]) { sync (ALL, TX_rvcd_allpkts[2]); } |
| 552 | //if(rtl_mac[3]) { sync (ALL, TX_rvcd_allpkts[3]); } |
| 553 | printf("<%0d> %s: report_bandwidth : Done. Waiting for TX_rvcd_allpkts\n", get_time(LO), name); |
| 554 | } |
| 555 | |
| 556 | // get plus arg parameters |
| 557 | if(get_plus_arg(CHECK,"MAC_SPEED0=")) |
| 558 | port_speed[0] = get_plus_arg(NUM,"MAC_SPEED0="); |
| 559 | |
| 560 | if(get_plus_arg(CHECK,"MAC_SPEED1=")) |
| 561 | port_speed[1] = get_plus_arg(NUM,"MAC_SPEED1="); |
| 562 | |
| 563 | if(get_plus_arg(CHECK,"MAC_SPEED2=")) |
| 564 | port_speed[2] = get_plus_arg(NUM,"MAC_SPEED2="); |
| 565 | |
| 566 | if(get_plus_arg(CHECK,"MAC_SPEED3=")) |
| 567 | port_speed[3] = get_plus_arg(NUM,"MAC_SPEED3="); |
| 568 | |
| 569 | if(get_plus_arg(CHECK,"MAC_PKT_LEN=")) { |
| 570 | port_pkt_length[0] = get_plus_arg(NUM,"MAC_PKT_LEN="); |
| 571 | port_pkt_length[1] = get_plus_arg(NUM,"MAC_PKT_LEN="); |
| 572 | port_pkt_length[2] = get_plus_arg(NUM,"MAC_PKT_LEN="); |
| 573 | port_pkt_length[3] = get_plus_arg(NUM,"MAC_PKT_LEN="); |
| 574 | } |
| 575 | |
| 576 | // Over write if packets lengths are per port basis. |
| 577 | if (get_plus_arg (CHECK, "MAC_PORT0_PKT_LEN")) |
| 578 | port_pkt_length[0] = get_plus_arg (NUM, "MAC_PORT0_PKT_LEN"); |
| 579 | if (get_plus_arg (CHECK, "MAC_PORT1_PKT_LEN")) |
| 580 | port_pkt_length[1] = get_plus_arg (NUM, "MAC_PORT1_PKT_LEN"); |
| 581 | if (get_plus_arg (CHECK, "MAC_PORT2_PKT_LEN")) |
| 582 | port_pkt_length[2] = get_plus_arg (NUM, "MAC_PORT2_PKT_LEN"); |
| 583 | if (get_plus_arg (CHECK, "MAC_PORT3_PKT_LEN")) |
| 584 | port_pkt_length[3] = get_plus_arg (NUM, "MAC_PORT3_PKT_LEN"); |
| 585 | |
| 586 | |
| 587 | if(get_plus_arg(CHECK,"PKTGEN_PORT0_10G_IPG=")) |
| 588 | port_ipg[0] = get_plus_arg(NUM,"PKTGEN_PORT0_10G_IPG="); |
| 589 | |
| 590 | if(get_plus_arg(CHECK,"PKTGEN_PORT1_10G_IPG=")) |
| 591 | port_ipg[1] = get_plus_arg(NUM,"PKTGEN_PORT1_10G_IPG="); |
| 592 | |
| 593 | if(get_plus_arg(CHECK,"PKTGEN_PORT2_1G_IPG=")) |
| 594 | port_ipg[2] = get_plus_arg(NUM,"PKTGEN_PORT2_1G_IPG="); |
| 595 | |
| 596 | if(get_plus_arg(CHECK,"PKTGEN_PORT3_1G_IPG=")) |
| 597 | port_ipg[3] = get_plus_arg(NUM,"PKTGEN_PORT3_1G_IPG="); |
| 598 | |
| 599 | // IPG correction |
| 600 | for(i=0;i<4;i++) { |
| 601 | port_ipg[i] += 9; // since env adds 8+1 byte ipg into actual passed value |
| 602 | } |
| 603 | // calculate ideal bw |
| 604 | // get ideal bw |
| 605 | for(i=0;i<4;i++) { |
| 606 | if(rtl_mac[i]) { |
| 607 | if(port_pkt_length[i]+port_ipg[i] > 0) |
| 608 | port_ideal_bw[i] = (port_pkt_length[i] * port_speed[i]) / |
| 609 | (port_pkt_length[i]+port_ipg[i]); |
| 610 | else |
| 611 | port_ideal_bw[i] = 0; |
| 612 | total_ideal_bw += port_ideal_bw[i]; |
| 613 | } |
| 614 | } |
| 615 | |
| 616 | // get actual bw |
| 617 | for(i=0;i<4;i++) { |
| 618 | if(rtl_mac[i]) { |
| 619 | if(macMonStats[i].index > 0) { |
| 620 | port_actual_bw[i] = macMonStats[i].raw_bw[macMonStats[i].index-1]; |
| 621 | } else { |
| 622 | port_actual_bw[i] = 0; |
| 623 | } |
| 624 | total_actual_bw += port_actual_bw[i]; |
| 625 | } |
| 626 | } |
| 627 | |
| 628 | |
| 629 | // report errors |
| 630 | if(total_actual_bw <= 0) total_actual_bw = 1; // dive by zero error |
| 631 | if(total_ideal_bw <= 0) total_ideal_bw = 1; // dive by zero error |
| 632 | |
| 633 | if(total_ideal_bw < total_actual_bw) |
| 634 | percentage_bw_difference = (total_ideal_bw * 100) / total_actual_bw ; |
| 635 | else |
| 636 | percentage_bw_difference = (total_actual_bw * 100) / total_ideal_bw ; |
| 637 | |
| 638 | percentage_bw_difference = diff_values(100, percentage_bw_difference); |
| 639 | |
| 640 | if(percentage_bw_difference > percentage_bw_to_ignore) { |
| 641 | if(report_bandwidth_mismatch_error && (one_time == 0)) { |
| 642 | printf("<%0d> %s : ERROR: report_bandwidth : bandwidth mismatch expected=%0d Mbps actual=%0d Mbps, difference=%0d percent\n", |
| 643 | get_time(LO), name, total_ideal_bw, total_actual_bw, percentage_bw_difference); |
| 644 | } else { |
| 645 | printf("<%0d> %s : NOTE: report_bandwidth : bandwidth mismatch expected=%0d Mbps actual=%0d Mbps, difference=%0d percent\n", |
| 646 | get_time(LO), name, total_ideal_bw, total_actual_bw, percentage_bw_difference); |
| 647 | } |
| 648 | } else { |
| 649 | printf("<%0d> %s : NOTE: report_bandwidth : bandwidth mismatch expected=%0d Mbps actual=%0d Mbps, difference=%0d percent\n", |
| 650 | get_time(LO), name, total_ideal_bw, total_actual_bw, percentage_bw_difference); |
| 651 | } |
| 652 | |
| 653 | printf("<%0d> =============== %s REPORT_BW =======================\n", get_time(LO), name); |
| 654 | printf("%s REPORT_BW Port#\t\tPort0\tPort1\tPort2\tPort3\n", name); |
| 655 | printf("%s REPORT_BW Speed\t\t%0d\t%0d\t%0d\t%0d\n", |
| 656 | name, port_speed[0], port_speed[1], port_speed[2], port_speed[3]); |
| 657 | printf("%s REPORT_BW PktLen\t\t%0d\t%0d\t%0d\t%0d\n", |
| 658 | name, port_pkt_length[0], port_pkt_length[1], port_pkt_length[2], port_pkt_length[3]); |
| 659 | printf("%s REPORT_BW SentPktCnt\t\t%0d\t%0d\t%0d\t%0d\n", |
| 660 | name, |
| 661 | number_of_pkts_sent[0], number_of_pkts_sent[1], |
| 662 | number_of_pkts_sent[2], number_of_pkts_sent[3]); |
| 663 | printf("%s REPORT_BW RcvdPktCnt\t\t%0d\t%0d\t%0d\t%0d\n", |
| 664 | name, |
| 665 | number_of_pkts_rcvd[0], number_of_pkts_rcvd[1], |
| 666 | number_of_pkts_rcvd[2], number_of_pkts_rcvd[3]); |
| 667 | printf("%s REPORT_BW IPG\t\t%0d\t%0d\t%0d\t%0d\n", |
| 668 | name, port_ipg[0], port_ipg[1], port_ipg[2], port_ipg[3]); |
| 669 | printf("%s REPORT_BW IdealBw\t\t%0d\t%0d\t%0d\t%0d\n", |
| 670 | name, port_ideal_bw[0], port_ideal_bw[1], port_ideal_bw[2], port_ideal_bw[3]); |
| 671 | printf("%s REPORT_BW ActualBw\t\t%0d\t%0d\t%0d\t%0d\n\n", |
| 672 | name, port_actual_bw[0], port_actual_bw[1], port_actual_bw[2], port_actual_bw[3]); |
| 673 | printf("%s REPORT_BW TotalIdealBw:\t%0d\n", name, total_ideal_bw); |
| 674 | printf("%s REPORT_BW TotalActualBw:\t%0d\n", name, total_actual_bw); |
| 675 | printf("<%0d> =============== %s REPORT_BW =======================\n", get_time(LO), name); |
| 676 | } |
| 677 | |
| 678 | task MacMonitor::display_results() { |
| 679 | } |
| 680 | |
| 681 | |