examples/l2fwd-event/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2019 Marvell International Ltd.
   3  */
   4
   5 #include <rte_string_fns.h>
   6
   7 #include "l2fwd_event.h"
   8 #include "l2fwd_poll.h"
   9
  10 /* display usage */
  11 static void
  12 l2fwd_event_usage(const char *prgname)
  13 {
  14         printf("%s [EAL options] -- -p PORTMASK [-q NQ]\n"
  15                "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
  16                "  -q NQ: number of queue (=ports) per lcore (default is 1)\n"
  17                "  -T PERIOD: statistics will be refreshed each PERIOD seconds "
  18                "                (0 to disable, 10 default, 86400 maximum)\n"
  19                "  --[no-]mac-updating: Enable or disable MAC addresses updating (enabled by default)\n"
  20                "      When enabled:\n"
  21                "       - The source MAC address is replaced by the TX port MAC address\n"
  22                "       - The destination MAC address is replaced by 02:00:00:00:00:TX_PORT_ID\n"
  23                "  --mode: Packet transfer mode for I/O, poll or eventdev\n"
  24                "          Default mode = eventdev\n"
  25                "  --eventq-sched: Event queue schedule type, ordered, atomic or parallel.\n"
  26                "                  Default: atomic\n"
  27                "                  Valid only if --mode=eventdev\n"
  28                "  --event-vector:  Enable event vectorization.\n"
  29                "  --event-vector-size: Max vector size if event vectorization is enabled.\n"
  30                "  --event-vector-tmo: Max timeout to form vector in nanoseconds if event vectorization is enabled\n"
  31                "  --config: Configure forwarding port pair mapping\n"
  32                "            Default: alternate port pairs\n\n",
  33                prgname);
  34 }
  35
  36 static int
  37 l2fwd_event_parse_portmask(const char *portmask)
  38 {
  39         char *end = NULL;
  40         unsigned long pm;
  41
  42         /* parse hexadecimal string */
  43         pm = strtoul(portmask, &end, 16);
  44         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
  45                 return 0;
  46
  47         return pm;
  48 }
  49
  50 static unsigned int
  51 l2fwd_event_parse_nqueue(const char *q_arg)
  52 {
  53         char *end = NULL;
  54         unsigned long n;
  55
  56         /* parse hexadecimal string */
  57         n = strtoul(q_arg, &end, 10);
  58         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
  59                 return 0;
  60         if (n == 0)
  61                 return 0;
  62         if (n >= MAX_RX_QUEUE_PER_LCORE)
  63                 return 0;
  64
  65         return n;
  66 }
  67
  68 static int
  69 l2fwd_event_parse_timer_period(const char *q_arg)
  70 {
  71         char *end = NULL;
  72         int n;
  73
  74         /* parse number string */
  75         n = strtol(q_arg, &end, 10);
  76         if ((q_arg[0] == '\0') || (end == NULL) || (*end != '\0'))
  77                 return -1;
  78         if (n >= MAX_TIMER_PERIOD)
  79                 return -1;
  80
  81         return n;
  82 }
  83
  84 static void
  85 l2fwd_event_parse_mode(const char *optarg,
  86                        struct l2fwd_resources *rsrc)
  87 {
  88         if (!strncmp(optarg, "poll", 4))
  89                 rsrc->event_mode = false;
  90         else if (!strncmp(optarg, "eventdev", 8))
  91                 rsrc->event_mode = true;
  92 }
  93
  94 static void
  95 l2fwd_event_parse_eventq_sched(const char *optarg,
  96                                struct l2fwd_resources *rsrc)
  97 {
  98         if (!strncmp(optarg, "ordered", 7))
  99                 rsrc->sched_type = RTE_SCHED_TYPE_ORDERED;
 100         else if (!strncmp(optarg, "atomic", 6))
 101                 rsrc->sched_type = RTE_SCHED_TYPE_ATOMIC;
 102         else if (!strncmp(optarg, "parallel", 8))
 103                 rsrc->sched_type = RTE_SCHED_TYPE_PARALLEL;
 104 }
 105
 106 static int
 107 l2fwd_parse_port_pair_config(const char *q_arg, struct l2fwd_resources *rsrc)
 108 {
 109         enum fieldnames {
 110                 FLD_PORT1 = 0,
 111                 FLD_PORT2,
 112                 _NUM_FLD
 113         };
 114         const char *p, *p0 = q_arg;
 115         uint16_t int_fld[_NUM_FLD];
 116         char *str_fld[_NUM_FLD];
 117         uint16_t port_pair = 0;
 118         unsigned int size;
 119         char s[256];
 120         char *end;
 121         int i;
 122
 123         while ((p = strchr(p0, '(')) != NULL) {
 124                 ++p;
 125                 p0 = strchr(p, ')');
 126                 if (p0 == NULL)
 127                         return -1;
 128
 129                 size = p0 - p;
 130                 if (size >= sizeof(s))
 131                         return -1;
 132
 133                 memcpy(s, p, size);
 134                 if (rte_strsplit(s, sizeof(s), str_fld,
 135                                         _NUM_FLD, ',') != _NUM_FLD)
 136                         return -1;
 137
 138                 for (i = 0; i < _NUM_FLD; i++) {
 139                         errno = 0;
 140                         int_fld[i] = strtoul(str_fld[i], &end, 0);
 141                         if (errno != 0 || end == str_fld[i] ||
 142                             int_fld[i] >= RTE_MAX_ETHPORTS)
 143                                 return -1;
 144                 }
 145
 146                 if (port_pair >= RTE_MAX_ETHPORTS / 2) {
 147                         printf("exceeded max number of port pair params: Current %d Max = %d\n",
 148                                port_pair, RTE_MAX_ETHPORTS / 2);
 149                         return -1;
 150                 }
 151
 152                 if ((rsrc->dst_ports[int_fld[FLD_PORT1]] != UINT32_MAX) ||
 153                         (rsrc->dst_ports[int_fld[FLD_PORT2]] != UINT32_MAX)) {
 154                         printf("Duplicate port pair (%d,%d) config\n",
 155                                         int_fld[FLD_PORT1], int_fld[FLD_PORT2]);
 156                         return -1;
 157                 }
 158
 159                 rsrc->dst_ports[int_fld[FLD_PORT1]] = int_fld[FLD_PORT2];
 160                 rsrc->dst_ports[int_fld[FLD_PORT2]] = int_fld[FLD_PORT1];
 161
 162                 port_pair++;
 163         }
 164
 165         rsrc->port_pairs = true;
 166
 167         return 0;
 168 }
 169
 170 static const char short_options[] =
 171         "p:"  /* portmask */
 172         "q:"  /* number of queues */
 173         "T:"  /* timer period */
 174         ;
 175
 176 #define CMD_LINE_OPT_MAC_UPDATING "mac-updating"
 177 #define CMD_LINE_OPT_NO_MAC_UPDATING "no-mac-updating"
 178 #define CMD_LINE_OPT_MODE "mode"
 179 #define CMD_LINE_OPT_EVENTQ_SCHED "eventq-sched"
 180 #define CMD_LINE_OPT_PORT_PAIR_CONF "config"
 181 #define CMD_LINE_OPT_ENABLE_VECTOR "event-vector"
 182 #define CMD_LINE_OPT_VECTOR_SIZE "event-vector-size"
 183 #define CMD_LINE_OPT_VECTOR_TMO_NS "event-vector-tmo"
 184
 185 enum {
 186         /* long options mapped to a short option */
 187
 188         /* first long only option value must be >= 256, so that we won't
 189          * conflict with short options
 190          */
 191         CMD_LINE_OPT_MIN_NUM = 256,
 192         CMD_LINE_OPT_MODE_NUM,
 193         CMD_LINE_OPT_EVENTQ_SCHED_NUM,
 194         CMD_LINE_OPT_PORT_PAIR_CONF_NUM,
 195         CMD_LINE_OPT_ENABLE_VECTOR_NUM,
 196         CMD_LINE_OPT_VECTOR_SIZE_NUM,
 197         CMD_LINE_OPT_VECTOR_TMO_NS_NUM
 198 };
 199
 200 /* Parse the argument given in the command line of the application */
 201 static int
 202 l2fwd_event_parse_args(int argc, char **argv, struct l2fwd_resources *rsrc)
 203 {
 204         int mac_updating = 1;
 205         struct option lgopts[] = {
 206                 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
 207                 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
 208                 { CMD_LINE_OPT_MODE, required_argument, NULL,
 209                                                         CMD_LINE_OPT_MODE_NUM},
 210                 { CMD_LINE_OPT_EVENTQ_SCHED, required_argument, NULL,
 211                                                 CMD_LINE_OPT_EVENTQ_SCHED_NUM},
 212                 { CMD_LINE_OPT_PORT_PAIR_CONF, required_argument, NULL,
 213                                         CMD_LINE_OPT_PORT_PAIR_CONF_NUM},
 214                 {CMD_LINE_OPT_ENABLE_VECTOR, no_argument, NULL,
 215                                         CMD_LINE_OPT_ENABLE_VECTOR_NUM},
 216                 {CMD_LINE_OPT_VECTOR_SIZE, required_argument, NULL,
 217                                         CMD_LINE_OPT_VECTOR_SIZE_NUM},
 218                 {CMD_LINE_OPT_VECTOR_TMO_NS, required_argument, NULL,
 219                                         CMD_LINE_OPT_VECTOR_TMO_NS_NUM},
 220                 {NULL, 0, 0, 0}
 221         };
 222         int opt, ret, timer_secs;
 223         char *prgname = argv[0];
 224         uint16_t port_id;
 225         int option_index;
 226         char **argvopt;
 227
 228         /* Reset l2fwd_dst_ports. 8< */
 229         for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++)
 230                 rsrc->dst_ports[port_id] = UINT32_MAX;
 231
 232         argvopt = argv;
 233         while ((opt = getopt_long(argc, argvopt, short_options,
 234                                   lgopts, &option_index)) != EOF) {
 235
 236                 switch (opt) {
 237                 /* portmask */
 238                 case 'p':
 239                         rsrc->enabled_port_mask =
 240                                         l2fwd_event_parse_portmask(optarg);
 241                         if (rsrc->enabled_port_mask == 0) {
 242                                 printf("invalid portmask\n");
 243                                 l2fwd_event_usage(prgname);
 244                                 return -1;
 245                         }
 246                         break;
 247
 248                 /* nqueue */
 249                 case 'q':
 250                         rsrc->rx_queue_per_lcore =
 251                                         l2fwd_event_parse_nqueue(optarg);
 252                         if (rsrc->rx_queue_per_lcore == 0) {
 253                                 printf("invalid queue number\n");
 254                                 l2fwd_event_usage(prgname);
 255                                 return -1;
 256                         }
 257                         break;
 258
 259                 /* timer period */
 260                 case 'T':
 261                         timer_secs = l2fwd_event_parse_timer_period(optarg);
 262                         if (timer_secs < 0) {
 263                                 printf("invalid timer period\n");
 264                                 l2fwd_event_usage(prgname);
 265                                 return -1;
 266                         }
 267                         rsrc->timer_period = timer_secs;
 268                         /* convert to number of cycles */
 269                         rsrc->timer_period *= rte_get_timer_hz();
 270                         break;
 271
 272                 case CMD_LINE_OPT_MODE_NUM:
 273                         l2fwd_event_parse_mode(optarg, rsrc);
 274                         break;
 275
 276                 case CMD_LINE_OPT_EVENTQ_SCHED_NUM:
 277                         l2fwd_event_parse_eventq_sched(optarg, rsrc);
 278                         break;
 279
 280                 case CMD_LINE_OPT_PORT_PAIR_CONF_NUM:
 281                         ret = l2fwd_parse_port_pair_config(optarg, rsrc);
 282                         if (ret) {
 283                                 printf("Invalid port pair config\n");
 284                                 l2fwd_event_usage(prgname);
 285                                 return -1;
 286                         }
 287                         break;
 288                 case CMD_LINE_OPT_ENABLE_VECTOR_NUM:
 289                         printf("event vectorization is enabled\n");
 290                         rsrc->evt_vec.enabled = 1;
 291                         break;
 292                 case CMD_LINE_OPT_VECTOR_SIZE_NUM:
 293                         rsrc->evt_vec.size = strtol(optarg, NULL, 10);
 294                         break;
 295                 case CMD_LINE_OPT_VECTOR_TMO_NS_NUM:
 296                         rsrc->evt_vec.timeout_ns = strtoull(optarg, NULL, 10);
 297                         break;
 298
 299                 /* long options */
 300                 case 0:
 301                         break;
 302
 303                 default:
 304                         l2fwd_event_usage(prgname);
 305                         return -1;
 306                 }
 307         }
 308
 309         rsrc->mac_updating = mac_updating;
 310
 311         if (rsrc->evt_vec.enabled && !rsrc->evt_vec.size) {
 312                 rsrc->evt_vec.size = VECTOR_SIZE_DEFAULT;
 313                 printf("vector size set to default (%" PRIu16 ")\n",
 314                        rsrc->evt_vec.size);
 315         }
 316
 317         if (rsrc->evt_vec.enabled && !rsrc->evt_vec.timeout_ns) {
 318                 rsrc->evt_vec.timeout_ns = VECTOR_TMO_NS_DEFAULT;
 319                 printf("vector timeout set to default (%" PRIu64 " ns)\n",
 320                        rsrc->evt_vec.timeout_ns);
 321         }
 322
 323         if (optind >= 0)
 324                 argv[optind-1] = prgname;
 325
 326         ret = optind-1;
 327         optind = 1; /* reset getopt lib */
 328         return ret;
 329         /* >8 End of reset l2fwd_dst_ports. */
 330 }
 331
 332 /*
 333  * Check port pair config with enabled port mask,
 334  * and for valid port pair combinations.
 335  */
 336 static int
 337 check_port_pair_config(struct l2fwd_resources *rsrc)
 338 {
 339         uint32_t port_pair_mask = 0;
 340         uint32_t portid;
 341         uint16_t index;
 342
 343         for (index = 0; index < rte_eth_dev_count_avail(); index++) {
 344                 if ((rsrc->enabled_port_mask & (1 << index)) == 0 ||
 345                     (port_pair_mask & (1 << index)))
 346                         continue;
 347
 348                 portid = rsrc->dst_ports[index];
 349                 if (portid == UINT32_MAX) {
 350                         printf("port %u is enabled in but no valid port pair\n",
 351                                index);
 352                         return -1;
 353                 }
 354
 355                 if (!rte_eth_dev_is_valid_port(index)) {
 356                         printf("port %u is not valid\n", index);
 357                         return -1;
 358                 }
 359
 360                 if (!rte_eth_dev_is_valid_port(portid)) {
 361                         printf("port %u is not valid\n", portid);
 362                         return -1;
 363                 }
 364
 365                 if (port_pair_mask & (1 << portid) &&
 366                                 rsrc->dst_ports[portid] != index) {
 367                         printf("port %u is used in other port pairs\n", portid);
 368                         return -1;
 369                 }
 370
 371                 port_pair_mask |= (1 << portid);
 372                 port_pair_mask |= (1 << index);
 373         }
 374
 375         return 0;
 376 }
 377
 378 static int
 379 l2fwd_launch_one_lcore(void *args)
 380 {
 381         struct l2fwd_resources *rsrc = args;
 382         struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
 383         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 384
 385         if (rsrc->event_mode)
 386                 evt_rsrc->ops.l2fwd_event_loop(rsrc);
 387         else
 388                 poll_rsrc->poll_main_loop(rsrc);
 389
 390         return 0;
 391 }
 392
 393 /* Check the link status of all ports in up to 9s, and print them finally */
 394 static void
 395 check_all_ports_link_status(struct l2fwd_resources *rsrc,
 396                             uint32_t port_mask)
 397 {
 398 #define CHECK_INTERVAL 100 /* 100ms */
 399 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 400         uint16_t port_id;
 401         uint8_t count, all_ports_up, print_flag = 0;
 402         struct rte_eth_link link;
 403         int ret;
 404         char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
 405
 406         printf("\nChecking link status...");
 407         fflush(stdout);
 408         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 409                 if (rsrc->force_quit)
 410                         return;
 411                 all_ports_up = 1;
 412                 RTE_ETH_FOREACH_DEV(port_id) {
 413                         if (rsrc->force_quit)
 414                                 return;
 415                         if ((port_mask & (1 << port_id)) == 0)
 416                                 continue;
 417                         memset(&link, 0, sizeof(link));
 418                         ret = rte_eth_link_get_nowait(port_id, &link);
 419                         if (ret < 0) {
 420                                 all_ports_up = 0;
 421                                 if (print_flag == 1)
 422                                         printf("Port %u link get failed: %s\n",
 423                                                 port_id, rte_strerror(-ret));
 424                                 continue;
 425                         }
 426                         /* print link status if flag set */
 427                         if (print_flag == 1) {
 428                                 rte_eth_link_to_str(link_status_text,
 429                                         sizeof(link_status_text), &link);
 430                                 printf("Port %d %s\n", port_id,
 431                                        link_status_text);
 432                                 continue;
 433                         }
 434                         /* clear all_ports_up flag if any link down */
 435                         if (link.link_status == RTE_ETH_LINK_DOWN) {
 436                                 all_ports_up = 0;
 437                                 break;
 438                         }
 439                 }
 440                 /* after finally printing all link status, get out */
 441                 if (print_flag == 1)
 442                         break;
 443
 444                 if (all_ports_up == 0) {
 445                         printf(".");
 446                         fflush(stdout);
 447                         rte_delay_ms(CHECK_INTERVAL);
 448                 }
 449
 450                 /* set the print_flag if all ports up or timeout */
 451                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 452                         print_flag = 1;
 453                         printf("done\n");
 454                 }
 455         }
 456 }
 457
 458 /* Print out statistics on packets dropped */
 459 static void
 460 print_stats(struct l2fwd_resources *rsrc)
 461 {
 462         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 463         uint32_t port_id;
 464
 465         total_packets_dropped = 0;
 466         total_packets_tx = 0;
 467         total_packets_rx = 0;
 468
 469         const char clr[] = {27, '[', '2', 'J', '\0' };
 470         const char topLeft[] = {27, '[', '1', ';', '1', 'H', '\0' };
 471
 472                 /* Clear screen and move to top left */
 473         printf("%s%s", clr, topLeft);
 474
 475         printf("\nPort statistics ====================================");
 476
 477         for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++) {
 478                 /* skip disabled ports */
 479                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 480                         continue;
 481                 printf("\nStatistics for port %u ------------------------------"
 482                            "\nPackets sent: %29"PRIu64
 483                            "\nPackets received: %25"PRIu64
 484                            "\nPackets dropped: %26"PRIu64,
 485                            port_id,
 486                            rsrc->port_stats[port_id].tx,
 487                            rsrc->port_stats[port_id].rx,
 488                            rsrc->port_stats[port_id].dropped);
 489
 490                 total_packets_dropped +=
 491                                         rsrc->port_stats[port_id].dropped;
 492                 total_packets_tx += rsrc->port_stats[port_id].tx;
 493                 total_packets_rx += rsrc->port_stats[port_id].rx;
 494         }
 495
 496         if (rsrc->event_mode) {
 497                 struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 498                 struct rte_event_eth_rx_adapter_stats rx_adptr_stats;
 499                 struct rte_event_eth_tx_adapter_stats tx_adptr_stats;
 500                 int ret, i;
 501
 502                 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++) {
 503                         ret = rte_event_eth_rx_adapter_stats_get(
 504                                         evt_rsrc->rx_adptr.rx_adptr[i],
 505                                         &rx_adptr_stats);
 506                         if (ret < 0)
 507                                 continue;
 508                         printf("\nRx adapter[%d] statistics===================="
 509                                    "\nReceive queue poll count: %17"PRIu64
 510                                    "\nReceived packet count: %20"PRIu64
 511                                    "\nEventdev enqueue count: %19"PRIu64
 512                                    "\nEventdev enqueue retry count: %13"PRIu64
 513                                    "\nReceived packet dropped count: %12"PRIu64
 514                                    "\nRx enqueue start timestamp: %15"PRIu64
 515                                    "\nRx enqueue block cycles: %18"PRIu64
 516                                    "\nRx enqueue unblock timestamp: %13"PRIu64,
 517                                    evt_rsrc->rx_adptr.rx_adptr[i],
 518                                    rx_adptr_stats.rx_poll_count,
 519                                    rx_adptr_stats.rx_packets,
 520                                    rx_adptr_stats.rx_enq_count,
 521                                    rx_adptr_stats.rx_enq_retry,
 522                                    rx_adptr_stats.rx_dropped,
 523                                    rx_adptr_stats.rx_enq_start_ts,
 524                                    rx_adptr_stats.rx_enq_block_cycles,
 525                                    rx_adptr_stats.rx_enq_end_ts);
 526                 }
 527                 for (i = 0; i <  evt_rsrc->tx_adptr.nb_tx_adptr; i++) {
 528                         ret = rte_event_eth_tx_adapter_stats_get(
 529                                         evt_rsrc->tx_adptr.tx_adptr[i],
 530                                         &tx_adptr_stats);
 531                         if (ret < 0)
 532                                 continue;
 533                         printf("\nTx adapter[%d] statistics===================="
 534                                    "\nNumber of transmit retries: %15"PRIu64
 535                                    "\nNumber of packets transmitted: %12"PRIu64
 536                                    "\nNumber of packets dropped: %16"PRIu64,
 537                                    evt_rsrc->tx_adptr.tx_adptr[i],
 538                                    tx_adptr_stats.tx_retry,
 539                                    tx_adptr_stats.tx_packets,
 540                                    tx_adptr_stats.tx_dropped);
 541                 }
 542         }
 543         printf("\nAggregate lcore statistics ========================="
 544                    "\nTotal packets sent: %23"PRIu64
 545                    "\nTotal packets received: %19"PRIu64
 546                    "\nTotal packets dropped: %20"PRIu64,
 547                    total_packets_tx,
 548                    total_packets_rx,
 549                    total_packets_dropped);
 550         printf("\n====================================================\n");
 551
 552         fflush(stdout);
 553 }
 554
 555 static void
 556 l2fwd_event_print_stats(struct l2fwd_resources *rsrc)
 557 {
 558         uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
 559         const uint64_t timer_period = rsrc->timer_period;
 560
 561         while (!rsrc->force_quit) {
 562                 /* if timer is enabled */
 563                 if (timer_period > 0) {
 564                         cur_tsc = rte_rdtsc();
 565                         diff_tsc = cur_tsc - prev_tsc;
 566
 567                         /* advance the timer */
 568                         timer_tsc += diff_tsc;
 569
 570                         /* if timer has reached its timeout */
 571                         if (unlikely(timer_tsc >= timer_period)) {
 572                                 print_stats(rsrc);
 573                                 /* reset the timer */
 574                                 timer_tsc = 0;
 575                         }
 576                         prev_tsc = cur_tsc;
 577                 }
 578         }
 579 }
 580
 581
 582 static void
 583 signal_handler(int signum)
 584 {
 585         struct l2fwd_resources *rsrc = l2fwd_get_rsrc();
 586         if (signum == SIGINT || signum == SIGTERM) {
 587                 printf("\n\nSignal %d received, preparing to exit...\n",
 588                                 signum);
 589                 rsrc->force_quit = true;
 590         }
 591 }
 592
 593 int
 594 main(int argc, char **argv)
 595 {
 596         struct l2fwd_resources *rsrc;
 597         uint16_t nb_ports_available = 0;
 598         uint32_t nb_ports_in_mask = 0;
 599         uint16_t port_id, last_port;
 600         uint32_t nb_mbufs;
 601         uint16_t nb_ports;
 602         int i, ret;
 603
 604         /* Init EAL. 8< */
 605         ret = rte_eal_init(argc, argv);
 606         if (ret < 0)
 607                 rte_panic("Invalid EAL arguments\n");
 608         argc -= ret;
 609         argv += ret;
 610
 611         rsrc = l2fwd_get_rsrc();
 612
 613         signal(SIGINT, signal_handler);
 614         signal(SIGTERM, signal_handler);
 615
 616         /* parse application arguments (after the EAL ones) */
 617         ret = l2fwd_event_parse_args(argc, argv, rsrc);
 618         if (ret < 0)
 619                 rte_panic("Invalid L2FWD arguments\n");
 620         /* >8 End of init EAL. */
 621
 622         printf("MAC updating %s\n", rsrc->mac_updating ? "enabled" :
 623                         "disabled");
 624
 625         nb_ports = rte_eth_dev_count_avail();
 626         if (nb_ports == 0)
 627                 rte_panic("No Ethernet ports - bye\n");
 628
 629         /* check port mask to possible port mask */
 630         if (rsrc->enabled_port_mask & ~((1 << nb_ports) - 1))
 631                 rte_panic("Invalid portmask; possible (0x%x)\n",
 632                         (1 << nb_ports) - 1);
 633
 634         if (!rsrc->port_pairs) {
 635                 last_port = 0;
 636                 /*
 637                  * Each logical core is assigned a dedicated TX queue on each
 638                  * port.
 639                  */
 640                 RTE_ETH_FOREACH_DEV(port_id) {
 641                         /* skip ports that are not enabled */
 642                         if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 643                                 continue;
 644
 645                         if (nb_ports_in_mask % 2) {
 646                                 rsrc->dst_ports[port_id] = last_port;
 647                                 rsrc->dst_ports[last_port] = port_id;
 648                         } else {
 649                                 last_port = port_id;
 650                         }
 651
 652                         nb_ports_in_mask++;
 653                 }
 654                 if (nb_ports_in_mask % 2) {
 655                         printf("Notice: odd number of ports in portmask.\n");
 656                         rsrc->dst_ports[last_port] = last_port;
 657                 }
 658         } else {
 659                 if (check_port_pair_config(rsrc) < 0)
 660                         rte_panic("Invalid port pair config\n");
 661         }
 662
 663         nb_mbufs = RTE_MAX(nb_ports * (RTE_TEST_RX_DESC_DEFAULT +
 664                                        RTE_TEST_TX_DESC_DEFAULT +
 665                                        MAX_PKT_BURST + rte_lcore_count() *
 666                                        MEMPOOL_CACHE_SIZE), 8192U);
 667
 668         /* Create the mbuf pool. 8< */
 669         rsrc->pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
 670                         nb_mbufs, MEMPOOL_CACHE_SIZE, 0,
 671                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 672         if (rsrc->pktmbuf_pool == NULL)
 673                 rte_panic("Cannot init mbuf pool\n");
 674         /* >8 End of creation of mbuf pool. */
 675
 676         if (rsrc->evt_vec.enabled) {
 677                 unsigned int nb_vec, vec_size;
 678
 679                 vec_size = rsrc->evt_vec.size;
 680                 nb_vec = (nb_mbufs + vec_size - 1) / vec_size;
 681                 rsrc->evt_vec_pool = rte_event_vector_pool_create(
 682                         "vector_pool", nb_vec, 0, vec_size, rte_socket_id());
 683                 if (rsrc->evt_vec_pool == NULL)
 684                         rte_panic("Cannot init event vector pool\n");
 685         }
 686
 687         nb_ports_available = l2fwd_event_init_ports(rsrc);
 688         if (!nb_ports_available)
 689                 rte_panic("All available ports are disabled. Please set portmask.\n");
 690
 691         /* Configure eventdev parameters if required */
 692         if (rsrc->event_mode)
 693                 l2fwd_event_resource_setup(rsrc);
 694         else
 695                 l2fwd_poll_resource_setup(rsrc);
 696
 697         /* initialize port stats */
 698         memset(&rsrc->port_stats, 0,
 699                                         sizeof(struct l2fwd_port_statistics));
 700
 701         /* All settings are done. Now enable eth devices */
 702         RTE_ETH_FOREACH_DEV(port_id) {
 703                 /* skip ports that are not enabled */
 704                 if ((rsrc->enabled_port_mask &
 705                                         (1 << port_id)) == 0)
 706                         continue;
 707
 708                 ret = rte_eth_dev_start(port_id);
 709                 if (ret < 0)
 710                         rte_panic("rte_eth_dev_start:err=%d, port=%u\n", ret,
 711                                   port_id);
 712         }
 713
 714         if (rsrc->event_mode)
 715                 l2fwd_event_service_setup(rsrc);
 716
 717         check_all_ports_link_status(rsrc, rsrc->enabled_port_mask);
 718
 719         /* launch per-lcore init on every lcore */
 720         rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, rsrc,
 721                                  SKIP_MAIN);
 722         l2fwd_event_print_stats(rsrc);
 723         if (rsrc->event_mode) {
 724                 struct l2fwd_event_resources *evt_rsrc =
 725                                                         rsrc->evt_rsrc;
 726                 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++)
 727                         rte_event_eth_rx_adapter_stop(
 728                                 evt_rsrc->rx_adptr.rx_adptr[i]);
 729                 for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++)
 730                         rte_event_eth_tx_adapter_stop(
 731                                 evt_rsrc->tx_adptr.tx_adptr[i]);
 732
 733                 RTE_ETH_FOREACH_DEV(port_id) {
 734                         if ((rsrc->enabled_port_mask &
 735                                                         (1 << port_id)) == 0)
 736                                 continue;
 737                         ret = rte_eth_dev_stop(port_id);
 738                         if (ret < 0)
 739                                 printf("rte_eth_dev_stop:err=%d, port=%u\n",
 740                                        ret, port_id);
 741                 }
 742
 743                 rte_eal_mp_wait_lcore();
 744                 RTE_ETH_FOREACH_DEV(port_id) {
 745                         if ((rsrc->enabled_port_mask &
 746                                                         (1 << port_id)) == 0)
 747                                 continue;
 748                         rte_eth_dev_close(port_id);
 749                 }
 750
 751                 rte_event_dev_stop(evt_rsrc->event_d_id);
 752                 rte_event_dev_close(evt_rsrc->event_d_id);
 753
 754         } else {
 755                 rte_eal_mp_wait_lcore();
 756
 757                 RTE_ETH_FOREACH_DEV(port_id) {
 758                         if ((rsrc->enabled_port_mask &
 759                                                         (1 << port_id)) == 0)
 760                                 continue;
 761                         printf("Closing port %d...", port_id);
 762                         ret = rte_eth_dev_stop(port_id);
 763                         if (ret < 0)
 764                                 printf("rte_eth_dev_stop:err=%d, port=%u\n",
 765                                        ret, port_id);
 766                         rte_eth_dev_close(port_id);
 767                         printf(" Done\n");
 768                 }
 769         }
 770
 771         /* clean up the EAL */
 772         rte_eal_cleanup();
 773         printf("Bye...\n");
 774
 775         return 0;
 776 }