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                "  --config: Configure forwarding port pair mapping\n"
  29                "            Default: alternate port pairs\n\n",
  30                prgname);
  31 }
  32
  33 static int
  34 l2fwd_event_parse_portmask(const char *portmask)
  35 {
  36         char *end = NULL;
  37         unsigned long pm;
  38
  39         /* parse hexadecimal string */
  40         pm = strtoul(portmask, &end, 16);
  41         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
  42                 return -1;
  43
  44         if (pm == 0)
  45                 return -1;
  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
 182 enum {
 183         /* long options mapped to a short option */
 184
 185         /* first long only option value must be >= 256, so that we won't
 186          * conflict with short options
 187          */
 188         CMD_LINE_OPT_MIN_NUM = 256,
 189         CMD_LINE_OPT_MODE_NUM,
 190         CMD_LINE_OPT_EVENTQ_SCHED_NUM,
 191         CMD_LINE_OPT_PORT_PAIR_CONF_NUM,
 192 };
 193
 194 /* Parse the argument given in the command line of the application */
 195 static int
 196 l2fwd_event_parse_args(int argc, char **argv, struct l2fwd_resources *rsrc)
 197 {
 198         int mac_updating = 1;
 199         struct option lgopts[] = {
 200                 { CMD_LINE_OPT_MAC_UPDATING, no_argument, &mac_updating, 1},
 201                 { CMD_LINE_OPT_NO_MAC_UPDATING, no_argument, &mac_updating, 0},
 202                 { CMD_LINE_OPT_MODE, required_argument, NULL,
 203                                                         CMD_LINE_OPT_MODE_NUM},
 204                 { CMD_LINE_OPT_EVENTQ_SCHED, required_argument, NULL,
 205                                                 CMD_LINE_OPT_EVENTQ_SCHED_NUM},
 206                 { CMD_LINE_OPT_PORT_PAIR_CONF, required_argument, NULL,
 207                                         CMD_LINE_OPT_PORT_PAIR_CONF_NUM},
 208                 {NULL, 0, 0, 0}
 209         };
 210         int opt, ret, timer_secs;
 211         char *prgname = argv[0];
 212         uint16_t port_id;
 213         int option_index;
 214         char **argvopt;
 215
 216         /* reset l2fwd_dst_ports */
 217         for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++)
 218                 rsrc->dst_ports[port_id] = UINT32_MAX;
 219
 220         argvopt = argv;
 221         while ((opt = getopt_long(argc, argvopt, short_options,
 222                                   lgopts, &option_index)) != EOF) {
 223
 224                 switch (opt) {
 225                 /* portmask */
 226                 case 'p':
 227                         rsrc->enabled_port_mask =
 228                                         l2fwd_event_parse_portmask(optarg);
 229                         if (rsrc->enabled_port_mask == 0) {
 230                                 printf("invalid portmask\n");
 231                                 l2fwd_event_usage(prgname);
 232                                 return -1;
 233                         }
 234                         break;
 235
 236                 /* nqueue */
 237                 case 'q':
 238                         rsrc->rx_queue_per_lcore =
 239                                         l2fwd_event_parse_nqueue(optarg);
 240                         if (rsrc->rx_queue_per_lcore == 0) {
 241                                 printf("invalid queue number\n");
 242                                 l2fwd_event_usage(prgname);
 243                                 return -1;
 244                         }
 245                         break;
 246
 247                 /* timer period */
 248                 case 'T':
 249                         timer_secs = l2fwd_event_parse_timer_period(optarg);
 250                         if (timer_secs < 0) {
 251                                 printf("invalid timer period\n");
 252                                 l2fwd_event_usage(prgname);
 253                                 return -1;
 254                         }
 255                         rsrc->timer_period = timer_secs;
 256                         /* convert to number of cycles */
 257                         rsrc->timer_period *= rte_get_timer_hz();
 258                         break;
 259
 260                 case CMD_LINE_OPT_MODE_NUM:
 261                         l2fwd_event_parse_mode(optarg, rsrc);
 262                         break;
 263
 264                 case CMD_LINE_OPT_EVENTQ_SCHED_NUM:
 265                         l2fwd_event_parse_eventq_sched(optarg, rsrc);
 266                         break;
 267
 268                 case CMD_LINE_OPT_PORT_PAIR_CONF_NUM:
 269                         ret = l2fwd_parse_port_pair_config(optarg, rsrc);
 270                         if (ret) {
 271                                 printf("Invalid port pair config\n");
 272                                 l2fwd_event_usage(prgname);
 273                                 return -1;
 274                         }
 275                         break;
 276
 277                 /* long options */
 278                 case 0:
 279                         break;
 280
 281                 default:
 282                         l2fwd_event_usage(prgname);
 283                         return -1;
 284                 }
 285         }
 286
 287         rsrc->mac_updating = mac_updating;
 288
 289         if (optind >= 0)
 290                 argv[optind-1] = prgname;
 291
 292         ret = optind-1;
 293         optind = 1; /* reset getopt lib */
 294         return ret;
 295 }
 296
 297 /*
 298  * Check port pair config with enabled port mask,
 299  * and for valid port pair combinations.
 300  */
 301 static int
 302 check_port_pair_config(struct l2fwd_resources *rsrc)
 303 {
 304         uint32_t port_pair_mask = 0;
 305         uint32_t portid;
 306         uint16_t index;
 307
 308         for (index = 0; index < rte_eth_dev_count_avail(); index++) {
 309                 if ((rsrc->enabled_port_mask & (1 << index)) == 0 ||
 310                     (port_pair_mask & (1 << index)))
 311                         continue;
 312
 313                 portid = rsrc->dst_ports[index];
 314                 if (portid == UINT32_MAX) {
 315                         printf("port %u is enabled in but no valid port pair\n",
 316                                index);
 317                         return -1;
 318                 }
 319
 320                 if (!rte_eth_dev_is_valid_port(index)) {
 321                         printf("port %u is not valid\n", index);
 322                         return -1;
 323                 }
 324
 325                 if (!rte_eth_dev_is_valid_port(portid)) {
 326                         printf("port %u is not valid\n", portid);
 327                         return -1;
 328                 }
 329
 330                 if (port_pair_mask & (1 << portid) &&
 331                                 rsrc->dst_ports[portid] != index) {
 332                         printf("port %u is used in other port pairs\n", portid);
 333                         return -1;
 334                 }
 335
 336                 port_pair_mask |= (1 << portid);
 337                 port_pair_mask |= (1 << index);
 338         }
 339
 340         return 0;
 341 }
 342
 343 static int
 344 l2fwd_launch_one_lcore(void *args)
 345 {
 346         struct l2fwd_resources *rsrc = args;
 347         struct l2fwd_poll_resources *poll_rsrc = rsrc->poll_rsrc;
 348         struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 349
 350         if (rsrc->event_mode)
 351                 evt_rsrc->ops.l2fwd_event_loop(rsrc);
 352         else
 353                 poll_rsrc->poll_main_loop(rsrc);
 354
 355         return 0;
 356 }
 357
 358 /* Check the link status of all ports in up to 9s, and print them finally */
 359 static void
 360 check_all_ports_link_status(struct l2fwd_resources *rsrc,
 361                             uint32_t port_mask)
 362 {
 363 #define CHECK_INTERVAL 100 /* 100ms */
 364 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
 365         uint16_t port_id;
 366         uint8_t count, all_ports_up, print_flag = 0;
 367         struct rte_eth_link link;
 368         int ret;
 369
 370         printf("\nChecking link status...");
 371         fflush(stdout);
 372         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 373                 if (rsrc->force_quit)
 374                         return;
 375                 all_ports_up = 1;
 376                 RTE_ETH_FOREACH_DEV(port_id) {
 377                         if (rsrc->force_quit)
 378                                 return;
 379                         if ((port_mask & (1 << port_id)) == 0)
 380                                 continue;
 381                         memset(&link, 0, sizeof(link));
 382                         ret = rte_eth_link_get_nowait(port_id, &link);
 383                         if (ret < 0) {
 384                                 all_ports_up = 0;
 385                                 if (print_flag == 1)
 386                                         printf("Port %u link get failed: %s\n",
 387                                                 port_id, rte_strerror(-ret));
 388                                 continue;
 389                         }
 390                         /* print link status if flag set */
 391                         if (print_flag == 1) {
 392                                 if (link.link_status)
 393                                         printf(
 394                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 395                                                 port_id, link.link_speed,
 396                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 397                                         ("full-duplex") : ("half-duplex"));
 398                                 else
 399                                         printf("Port %d Link Down\n", port_id);
 400                                 continue;
 401                         }
 402                         /* clear all_ports_up flag if any link down */
 403                         if (link.link_status == ETH_LINK_DOWN) {
 404                                 all_ports_up = 0;
 405                                 break;
 406                         }
 407                 }
 408                 /* after finally printing all link status, get out */
 409                 if (print_flag == 1)
 410                         break;
 411
 412                 if (all_ports_up == 0) {
 413                         printf(".");
 414                         fflush(stdout);
 415                         rte_delay_ms(CHECK_INTERVAL);
 416                 }
 417
 418                 /* set the print_flag if all ports up or timeout */
 419                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
 420                         print_flag = 1;
 421                         printf("done\n");
 422                 }
 423         }
 424 }
 425
 426 /* Print out statistics on packets dropped */
 427 static void
 428 print_stats(struct l2fwd_resources *rsrc)
 429 {
 430         uint64_t total_packets_dropped, total_packets_tx, total_packets_rx;
 431         uint32_t port_id;
 432
 433         total_packets_dropped = 0;
 434         total_packets_tx = 0;
 435         total_packets_rx = 0;
 436
 437         const char clr[] = {27, '[', '2', 'J', '\0' };
 438         const char topLeft[] = {27, '[', '1', ';', '1', 'H', '\0' };
 439
 440                 /* Clear screen and move to top left */
 441         printf("%s%s", clr, topLeft);
 442
 443         printf("\nPort statistics ====================================");
 444
 445         for (port_id = 0; port_id < RTE_MAX_ETHPORTS; port_id++) {
 446                 /* skip disabled ports */
 447                 if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 448                         continue;
 449                 printf("\nStatistics for port %u ------------------------------"
 450                            "\nPackets sent: %29"PRIu64
 451                            "\nPackets received: %25"PRIu64
 452                            "\nPackets dropped: %26"PRIu64,
 453                            port_id,
 454                            rsrc->port_stats[port_id].tx,
 455                            rsrc->port_stats[port_id].rx,
 456                            rsrc->port_stats[port_id].dropped);
 457
 458                 total_packets_dropped +=
 459                                         rsrc->port_stats[port_id].dropped;
 460                 total_packets_tx += rsrc->port_stats[port_id].tx;
 461                 total_packets_rx += rsrc->port_stats[port_id].rx;
 462         }
 463
 464         if (rsrc->event_mode) {
 465                 struct l2fwd_event_resources *evt_rsrc = rsrc->evt_rsrc;
 466                 struct rte_event_eth_rx_adapter_stats rx_adptr_stats;
 467                 struct rte_event_eth_tx_adapter_stats tx_adptr_stats;
 468                 int ret, i;
 469
 470                 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++) {
 471                         ret = rte_event_eth_rx_adapter_stats_get(
 472                                         evt_rsrc->rx_adptr.rx_adptr[i],
 473                                         &rx_adptr_stats);
 474                         if (ret < 0)
 475                                 continue;
 476                         printf("\nRx adapter[%d] statistics===================="
 477                                    "\nReceive queue poll count: %17"PRIu64
 478                                    "\nReceived packet count: %20"PRIu64
 479                                    "\nEventdev enqueue count: %19"PRIu64
 480                                    "\nEventdev enqueue retry count: %13"PRIu64
 481                                    "\nReceived packet dropped count: %12"PRIu64
 482                                    "\nRx enqueue start timestamp: %15"PRIu64
 483                                    "\nRx enqueue block cycles: %18"PRIu64
 484                                    "\nRx enqueue unblock timestamp: %13"PRIu64,
 485                                    evt_rsrc->rx_adptr.rx_adptr[i],
 486                                    rx_adptr_stats.rx_poll_count,
 487                                    rx_adptr_stats.rx_packets,
 488                                    rx_adptr_stats.rx_enq_count,
 489                                    rx_adptr_stats.rx_enq_retry,
 490                                    rx_adptr_stats.rx_dropped,
 491                                    rx_adptr_stats.rx_enq_start_ts,
 492                                    rx_adptr_stats.rx_enq_block_cycles,
 493                                    rx_adptr_stats.rx_enq_end_ts);
 494                 }
 495                 for (i = 0; i <  evt_rsrc->tx_adptr.nb_tx_adptr; i++) {
 496                         ret = rte_event_eth_tx_adapter_stats_get(
 497                                         evt_rsrc->tx_adptr.tx_adptr[i],
 498                                         &tx_adptr_stats);
 499                         if (ret < 0)
 500                                 continue;
 501                         printf("\nTx adapter[%d] statistics===================="
 502                                    "\nNumber of transmit retries: %15"PRIu64
 503                                    "\nNumber of packets transmitted: %12"PRIu64
 504                                    "\nNumber of packets dropped: %16"PRIu64,
 505                                    evt_rsrc->tx_adptr.tx_adptr[i],
 506                                    tx_adptr_stats.tx_retry,
 507                                    tx_adptr_stats.tx_packets,
 508                                    tx_adptr_stats.tx_dropped);
 509                 }
 510         }
 511         printf("\nAggregate lcore statistics ========================="
 512                    "\nTotal packets sent: %23"PRIu64
 513                    "\nTotal packets received: %19"PRIu64
 514                    "\nTotal packets dropped: %20"PRIu64,
 515                    total_packets_tx,
 516                    total_packets_rx,
 517                    total_packets_dropped);
 518         printf("\n====================================================\n");
 519
 520         fflush(stdout);
 521 }
 522
 523 static void
 524 l2fwd_event_print_stats(struct l2fwd_resources *rsrc)
 525 {
 526         uint64_t prev_tsc = 0, diff_tsc, cur_tsc, timer_tsc = 0;
 527         const uint64_t timer_period = rsrc->timer_period;
 528
 529         while (!rsrc->force_quit) {
 530                 /* if timer is enabled */
 531                 if (timer_period > 0) {
 532                         cur_tsc = rte_rdtsc();
 533                         diff_tsc = cur_tsc - prev_tsc;
 534
 535                         /* advance the timer */
 536                         timer_tsc += diff_tsc;
 537
 538                         /* if timer has reached its timeout */
 539                         if (unlikely(timer_tsc >= timer_period)) {
 540                                 print_stats(rsrc);
 541                                 /* reset the timer */
 542                                 timer_tsc = 0;
 543                         }
 544                         prev_tsc = cur_tsc;
 545                 }
 546         }
 547 }
 548
 549
 550 static void
 551 signal_handler(int signum)
 552 {
 553         struct l2fwd_resources *rsrc = l2fwd_get_rsrc();
 554         if (signum == SIGINT || signum == SIGTERM) {
 555                 printf("\n\nSignal %d received, preparing to exit...\n",
 556                                 signum);
 557                 rsrc->force_quit = true;
 558         }
 559 }
 560
 561 int
 562 main(int argc, char **argv)
 563 {
 564         struct l2fwd_resources *rsrc;
 565         uint16_t nb_ports_available = 0;
 566         uint32_t nb_ports_in_mask = 0;
 567         uint16_t port_id, last_port;
 568         uint32_t nb_mbufs;
 569         uint16_t nb_ports;
 570         int i, ret;
 571
 572         /* init EAL */
 573         ret = rte_eal_init(argc, argv);
 574         if (ret < 0)
 575                 rte_panic("Invalid EAL arguments\n");
 576         argc -= ret;
 577         argv += ret;
 578
 579         rsrc = l2fwd_get_rsrc();
 580
 581         signal(SIGINT, signal_handler);
 582         signal(SIGTERM, signal_handler);
 583
 584         /* parse application arguments (after the EAL ones) */
 585         ret = l2fwd_event_parse_args(argc, argv, rsrc);
 586         if (ret < 0)
 587                 rte_panic("Invalid L2FWD arguments\n");
 588
 589         printf("MAC updating %s\n", rsrc->mac_updating ? "enabled" :
 590                         "disabled");
 591
 592         nb_ports = rte_eth_dev_count_avail();
 593         if (nb_ports == 0)
 594                 rte_panic("No Ethernet ports - bye\n");
 595
 596         /* check port mask to possible port mask */
 597         if (rsrc->enabled_port_mask & ~((1 << nb_ports) - 1))
 598                 rte_panic("Invalid portmask; possible (0x%x)\n",
 599                         (1 << nb_ports) - 1);
 600
 601         if (!rsrc->port_pairs) {
 602                 last_port = 0;
 603                 /*
 604                  * Each logical core is assigned a dedicated TX queue on each
 605                  * port.
 606                  */
 607                 RTE_ETH_FOREACH_DEV(port_id) {
 608                         /* skip ports that are not enabled */
 609                         if ((rsrc->enabled_port_mask & (1 << port_id)) == 0)
 610                                 continue;
 611
 612                         if (nb_ports_in_mask % 2) {
 613                                 rsrc->dst_ports[port_id] = last_port;
 614                                 rsrc->dst_ports[last_port] = port_id;
 615                         } else {
 616                                 last_port = port_id;
 617                         }
 618
 619                         nb_ports_in_mask++;
 620                 }
 621                 if (nb_ports_in_mask % 2) {
 622                         printf("Notice: odd number of ports in portmask.\n");
 623                         rsrc->dst_ports[last_port] = last_port;
 624                 }
 625         } else {
 626                 if (check_port_pair_config(rsrc) < 0)
 627                         rte_panic("Invalid port pair config\n");
 628         }
 629
 630         nb_mbufs = RTE_MAX(nb_ports * (RTE_TEST_RX_DESC_DEFAULT +
 631                                        RTE_TEST_TX_DESC_DEFAULT +
 632                                        MAX_PKT_BURST + rte_lcore_count() *
 633                                        MEMPOOL_CACHE_SIZE), 8192U);
 634
 635         /* create the mbuf pool */
 636         rsrc->pktmbuf_pool = rte_pktmbuf_pool_create("mbuf_pool",
 637                         nb_mbufs, MEMPOOL_CACHE_SIZE, 0,
 638                         RTE_MBUF_DEFAULT_BUF_SIZE, rte_socket_id());
 639         if (rsrc->pktmbuf_pool == NULL)
 640                 rte_panic("Cannot init mbuf pool\n");
 641
 642         nb_ports_available = l2fwd_event_init_ports(rsrc);
 643         if (!nb_ports_available)
 644                 rte_panic("All available ports are disabled. Please set portmask.\n");
 645
 646         /* Configure eventdev parameters if required */
 647         if (rsrc->event_mode)
 648                 l2fwd_event_resource_setup(rsrc);
 649         else
 650                 l2fwd_poll_resource_setup(rsrc);
 651
 652         /* initialize port stats */
 653         memset(&rsrc->port_stats, 0,
 654                                         sizeof(struct l2fwd_port_statistics));
 655
 656         /* All settings are done. Now enable eth devices */
 657         RTE_ETH_FOREACH_DEV(port_id) {
 658                 /* skip ports that are not enabled */
 659                 if ((rsrc->enabled_port_mask &
 660                                         (1 << port_id)) == 0)
 661                         continue;
 662
 663                 ret = rte_eth_dev_start(port_id);
 664                 if (ret < 0)
 665                         rte_panic("rte_eth_dev_start:err=%d, port=%u\n", ret,
 666                                   port_id);
 667         }
 668
 669         if (rsrc->event_mode)
 670                 l2fwd_event_service_setup(rsrc);
 671
 672         check_all_ports_link_status(rsrc, rsrc->enabled_port_mask);
 673
 674         /* launch per-lcore init on every lcore */
 675         rte_eal_mp_remote_launch(l2fwd_launch_one_lcore, rsrc,
 676                                  SKIP_MASTER);
 677         l2fwd_event_print_stats(rsrc);
 678         if (rsrc->event_mode) {
 679                 struct l2fwd_event_resources *evt_rsrc =
 680                                                         rsrc->evt_rsrc;
 681                 for (i = 0; i < evt_rsrc->rx_adptr.nb_rx_adptr; i++)
 682                         rte_event_eth_rx_adapter_stop(
 683                                 evt_rsrc->rx_adptr.rx_adptr[i]);
 684                 for (i = 0; i < evt_rsrc->tx_adptr.nb_tx_adptr; i++)
 685                         rte_event_eth_tx_adapter_stop(
 686                                 evt_rsrc->tx_adptr.tx_adptr[i]);
 687
 688                 RTE_ETH_FOREACH_DEV(port_id) {
 689                         if ((rsrc->enabled_port_mask &
 690                                                         (1 << port_id)) == 0)
 691                                 continue;
 692                         rte_eth_dev_stop(port_id);
 693                 }
 694
 695                 rte_eal_mp_wait_lcore();
 696                 RTE_ETH_FOREACH_DEV(port_id) {
 697                         if ((rsrc->enabled_port_mask &
 698                                                         (1 << port_id)) == 0)
 699                                 continue;
 700                         rte_eth_dev_close(port_id);
 701                 }
 702
 703                 rte_event_dev_stop(evt_rsrc->event_d_id);
 704                 rte_event_dev_close(evt_rsrc->event_d_id);
 705
 706         } else {
 707                 rte_eal_mp_wait_lcore();
 708
 709                 RTE_ETH_FOREACH_DEV(port_id) {
 710                         if ((rsrc->enabled_port_mask &
 711                                                         (1 << port_id)) == 0)
 712                                 continue;
 713                         printf("Closing port %d...", port_id);
 714                         rte_eth_dev_stop(port_id);
 715                         rte_eth_dev_close(port_id);
 716                         printf(" Done\n");
 717                 }
 718         }
 719         printf("Bye...\n");
 720
 721         return 0;
 722 }