app/pdump/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2016 Intel Corporation
   3  */
   4
   5 #include <stdio.h>
   6 #include <string.h>
   7 #include <stdint.h>
   8 #include <inttypes.h>
   9 #include <stdlib.h>
  10 #include <getopt.h>
  11 #include <signal.h>
  12 #include <stdbool.h>
  13 #include <net/if.h>
  14
  15 #include <rte_eal.h>
  16 #include <rte_alarm.h>
  17 #include <rte_common.h>
  18 #include <rte_debug.h>
  19 #include <rte_ethdev.h>
  20 #include <rte_memory.h>
  21 #include <rte_lcore.h>
  22 #include <rte_branch_prediction.h>
  23 #include <rte_errno.h>
  24 #include <rte_dev.h>
  25 #include <rte_kvargs.h>
  26 #include <rte_mempool.h>
  27 #include <rte_ring.h>
  28 #include <rte_string_fns.h>
  29 #include <rte_pdump.h>
  30
  31 #define CMD_LINE_OPT_PDUMP "pdump"
  32 #define CMD_LINE_OPT_PDUMP_NUM 256
  33 #define CMD_LINE_OPT_MULTI "multi"
  34 #define CMD_LINE_OPT_MULTI_NUM 257
  35 #define PDUMP_PORT_ARG "port"
  36 #define PDUMP_PCI_ARG "device_id"
  37 #define PDUMP_QUEUE_ARG "queue"
  38 #define PDUMP_DIR_ARG "dir"
  39 #define PDUMP_RX_DEV_ARG "rx-dev"
  40 #define PDUMP_TX_DEV_ARG "tx-dev"
  41 #define PDUMP_RING_SIZE_ARG "ring-size"
  42 #define PDUMP_MSIZE_ARG "mbuf-size"
  43 #define PDUMP_NUM_MBUFS_ARG "total-num-mbufs"
  44
  45 #define VDEV_NAME_FMT "net_pcap_%s_%d"
  46 #define VDEV_PCAP_ARGS_FMT "tx_pcap=%s"
  47 #define VDEV_IFACE_ARGS_FMT "tx_iface=%s"
  48 #define TX_STREAM_SIZE 64
  49
  50 #define MP_NAME "pdump_pool_%d"
  51
  52 #define RX_RING "rx_ring_%d"
  53 #define TX_RING "tx_ring_%d"
  54
  55 #define RX_STR "rx"
  56 #define TX_STR "tx"
  57
  58 /* Maximum long option length for option parsing. */
  59 #define APP_ARG_TCPDUMP_MAX_TUPLES 54
  60 #define MBUF_POOL_CACHE_SIZE 250
  61 #define TX_DESC_PER_QUEUE 512
  62 #define RX_DESC_PER_QUEUE 128
  63 #define MBUFS_PER_POOL 65535
  64 #define MAX_LONG_OPT_SZ 64
  65 #define RING_SIZE 16384
  66 #define SIZE 256
  67 #define BURST_SIZE 32
  68 #define NUM_VDEVS 2
  69 /* Maximum delay for exiting after primary process. */
  70 #define MONITOR_INTERVAL (500 * 1000)
  71
  72 /* true if x is a power of 2 */
  73 #define POWEROF2(x) ((((x)-1) & (x)) == 0)
  74
  75 enum pdump_en_dis {
  76         DISABLE = 1,
  77         ENABLE = 2
  78 };
  79
  80 enum pcap_stream {
  81         IFACE = 1,
  82         PCAP = 2
  83 };
  84
  85 enum pdump_by {
  86         PORT_ID = 1,
  87         DEVICE_ID = 2
  88 };
  89
  90 static const char * const valid_pdump_arguments[] = {
  91         PDUMP_PORT_ARG,
  92         PDUMP_PCI_ARG,
  93         PDUMP_QUEUE_ARG,
  94         PDUMP_DIR_ARG,
  95         PDUMP_RX_DEV_ARG,
  96         PDUMP_TX_DEV_ARG,
  97         PDUMP_RING_SIZE_ARG,
  98         PDUMP_MSIZE_ARG,
  99         PDUMP_NUM_MBUFS_ARG,
 100         NULL
 101 };
 102
 103 struct pdump_stats {
 104         uint64_t dequeue_pkts;
 105         uint64_t tx_pkts;
 106         uint64_t freed_pkts;
 107 };
 108
 109 struct pdump_tuples {
 110         /* cli params */
 111         uint16_t port;
 112         char *device_id;
 113         uint16_t queue;
 114         char rx_dev[TX_STREAM_SIZE];
 115         char tx_dev[TX_STREAM_SIZE];
 116         uint32_t ring_size;
 117         uint16_t mbuf_data_size;
 118         uint32_t total_num_mbufs;
 119
 120         /* params for library API call */
 121         uint32_t dir;
 122         struct rte_mempool *mp;
 123         struct rte_ring *rx_ring;
 124         struct rte_ring *tx_ring;
 125
 126         /* params for packet dumping */
 127         enum pdump_by dump_by_type;
 128         uint16_t rx_vdev_id;
 129         uint16_t tx_vdev_id;
 130         enum pcap_stream rx_vdev_stream_type;
 131         enum pcap_stream tx_vdev_stream_type;
 132         bool single_pdump_dev;
 133
 134         /* stats */
 135         struct pdump_stats stats;
 136 } __rte_cache_aligned;
 137 static struct pdump_tuples pdump_t[APP_ARG_TCPDUMP_MAX_TUPLES];
 138
 139 struct parse_val {
 140         uint64_t min;
 141         uint64_t max;
 142         uint64_t val;
 143 };
 144
 145 static int num_tuples;
 146 static struct rte_eth_conf port_conf_default;
 147 static volatile uint8_t quit_signal;
 148 static uint8_t multiple_core_capture;
 149
 150 /**< display usage */
 151 static void
 152 pdump_usage(const char *prgname)
 153 {
 154         printf("usage: %s [EAL options] --"
 155                         " --["CMD_LINE_OPT_MULTI"]\n"
 156                         " --"CMD_LINE_OPT_PDUMP" "
 157                         "'(port=<port id> | device_id=<pci id or vdev name>),"
 158                         "(queue=<queue_id>),"
 159                         "(rx-dev=<iface or pcap file> |"
 160                         " tx-dev=<iface or pcap file>,"
 161                         "[ring-size=<ring size>default:16384],"
 162                         "[mbuf-size=<mbuf data size>default:2176],"
 163                         "[total-num-mbufs=<number of mbufs>default:65535]'\n",
 164                         prgname);
 165 }
 166
 167 static int
 168 parse_device_id(const char *key __rte_unused, const char *value,
 169                 void *extra_args)
 170 {
 171         struct pdump_tuples *pt = extra_args;
 172
 173         pt->device_id = strdup(value);
 174         pt->dump_by_type = DEVICE_ID;
 175
 176         return 0;
 177 }
 178
 179 static int
 180 parse_queue(const char *key __rte_unused, const char *value, void *extra_args)
 181 {
 182         unsigned long n;
 183         struct pdump_tuples *pt = extra_args;
 184
 185         if (!strcmp(value, "*"))
 186                 pt->queue = RTE_PDUMP_ALL_QUEUES;
 187         else {
 188                 n = strtoul(value, NULL, 10);
 189                 pt->queue = (uint16_t) n;
 190         }
 191         return 0;
 192 }
 193
 194 static int
 195 parse_rxtxdev(const char *key, const char *value, void *extra_args)
 196 {
 197
 198         struct pdump_tuples *pt = extra_args;
 199
 200         if (!strcmp(key, PDUMP_RX_DEV_ARG)) {
 201                 strlcpy(pt->rx_dev, value, sizeof(pt->rx_dev));
 202                 /* identify the tx stream type for pcap vdev */
 203                 if (if_nametoindex(pt->rx_dev))
 204                         pt->rx_vdev_stream_type = IFACE;
 205         } else if (!strcmp(key, PDUMP_TX_DEV_ARG)) {
 206                 strlcpy(pt->tx_dev, value, sizeof(pt->tx_dev));
 207                 /* identify the tx stream type for pcap vdev */
 208                 if (if_nametoindex(pt->tx_dev))
 209                         pt->tx_vdev_stream_type = IFACE;
 210         }
 211
 212         return 0;
 213 }
 214
 215 static int
 216 parse_uint_value(const char *key, const char *value, void *extra_args)
 217 {
 218         struct parse_val *v;
 219         unsigned long t;
 220         char *end;
 221         int ret = 0;
 222
 223         errno = 0;
 224         v = extra_args;
 225         t = strtoul(value, &end, 10);
 226
 227         if (errno != 0 || end[0] != 0 || t < v->min || t > v->max) {
 228                 printf("invalid value:\"%s\" for key:\"%s\", "
 229                         "value must be >= %"PRIu64" and <= %"PRIu64"\n",
 230                         value, key, v->min, v->max);
 231                 ret = -EINVAL;
 232         }
 233         if (!strcmp(key, PDUMP_RING_SIZE_ARG) && !POWEROF2(t)) {
 234                 printf("invalid value:\"%s\" for key:\"%s\", "
 235                         "value must be power of 2\n", value, key);
 236                 ret = -EINVAL;
 237         }
 238
 239         if (ret != 0)
 240                 return ret;
 241
 242         v->val = t;
 243         return 0;
 244 }
 245
 246 static int
 247 parse_pdump(const char *optarg)
 248 {
 249         struct rte_kvargs *kvlist;
 250         int ret = 0, cnt1, cnt2;
 251         struct pdump_tuples *pt;
 252         struct parse_val v = {0};
 253
 254         pt = &pdump_t[num_tuples];
 255
 256         /* initial check for invalid arguments */
 257         kvlist = rte_kvargs_parse(optarg, valid_pdump_arguments);
 258         if (kvlist == NULL) {
 259                 printf("--pdump=\"%s\": invalid argument passed\n", optarg);
 260                 return -1;
 261         }
 262
 263         /* port/device_id parsing and validation */
 264         cnt1 = rte_kvargs_count(kvlist, PDUMP_PORT_ARG);
 265         cnt2 = rte_kvargs_count(kvlist, PDUMP_PCI_ARG);
 266         if (!((cnt1 == 1 && cnt2 == 0) || (cnt1 == 0 && cnt2 == 1))) {
 267                 printf("--pdump=\"%s\": must have either port or "
 268                         "device_id argument\n", optarg);
 269                 ret = -1;
 270                 goto free_kvlist;
 271         } else if (cnt1 == 1) {
 272                 v.min = 0;
 273                 v.max = RTE_MAX_ETHPORTS-1;
 274                 ret = rte_kvargs_process(kvlist, PDUMP_PORT_ARG,
 275                                 &parse_uint_value, &v);
 276                 if (ret < 0)
 277                         goto free_kvlist;
 278                 pt->port = (uint16_t) v.val;
 279                 pt->dump_by_type = PORT_ID;
 280         } else if (cnt2 == 1) {
 281                 ret = rte_kvargs_process(kvlist, PDUMP_PCI_ARG,
 282                                 &parse_device_id, pt);
 283                 if (ret < 0)
 284                         goto free_kvlist;
 285         }
 286
 287         /* queue parsing and validation */
 288         cnt1 = rte_kvargs_count(kvlist, PDUMP_QUEUE_ARG);
 289         if (cnt1 != 1) {
 290                 printf("--pdump=\"%s\": must have queue argument\n", optarg);
 291                 ret = -1;
 292                 goto free_kvlist;
 293         }
 294         ret = rte_kvargs_process(kvlist, PDUMP_QUEUE_ARG, &parse_queue, pt);
 295         if (ret < 0)
 296                 goto free_kvlist;
 297
 298         /* rx-dev and tx-dev parsing and validation */
 299         cnt1 = rte_kvargs_count(kvlist, PDUMP_RX_DEV_ARG);
 300         cnt2 = rte_kvargs_count(kvlist, PDUMP_TX_DEV_ARG);
 301         if (cnt1 == 0 && cnt2 == 0) {
 302                 printf("--pdump=\"%s\": must have either rx-dev or "
 303                         "tx-dev argument\n", optarg);
 304                 ret = -1;
 305                 goto free_kvlist;
 306         } else if (cnt1 == 1 && cnt2 == 1) {
 307                 ret = rte_kvargs_process(kvlist, PDUMP_RX_DEV_ARG,
 308                                         &parse_rxtxdev, pt);
 309                 if (ret < 0)
 310                         goto free_kvlist;
 311                 ret = rte_kvargs_process(kvlist, PDUMP_TX_DEV_ARG,
 312                                         &parse_rxtxdev, pt);
 313                 if (ret < 0)
 314                         goto free_kvlist;
 315                 /* if captured packets has to send to the same vdev */
 316                 if (!strcmp(pt->rx_dev, pt->tx_dev))
 317                         pt->single_pdump_dev = true;
 318                 pt->dir = RTE_PDUMP_FLAG_RXTX;
 319         } else if (cnt1 == 1) {
 320                 ret = rte_kvargs_process(kvlist, PDUMP_RX_DEV_ARG,
 321                                         &parse_rxtxdev, pt);
 322                 if (ret < 0)
 323                         goto free_kvlist;
 324                 pt->dir = RTE_PDUMP_FLAG_RX;
 325         } else if (cnt2 == 1) {
 326                 ret = rte_kvargs_process(kvlist, PDUMP_TX_DEV_ARG,
 327                                         &parse_rxtxdev, pt);
 328                 if (ret < 0)
 329                         goto free_kvlist;
 330                 pt->dir = RTE_PDUMP_FLAG_TX;
 331         }
 332
 333         /* optional */
 334         /* ring_size parsing and validation */
 335         cnt1 = rte_kvargs_count(kvlist, PDUMP_RING_SIZE_ARG);
 336         if (cnt1 == 1) {
 337                 v.min = 2;
 338                 v.max = RTE_RING_SZ_MASK-1;
 339                 ret = rte_kvargs_process(kvlist, PDUMP_RING_SIZE_ARG,
 340                                                 &parse_uint_value, &v);
 341                 if (ret < 0)
 342                         goto free_kvlist;
 343                 pt->ring_size = (uint32_t) v.val;
 344         } else
 345                 pt->ring_size = RING_SIZE;
 346
 347         /* mbuf_data_size parsing and validation */
 348         cnt1 = rte_kvargs_count(kvlist, PDUMP_MSIZE_ARG);
 349         if (cnt1 == 1) {
 350                 v.min = 1;
 351                 v.max = UINT16_MAX;
 352                 ret = rte_kvargs_process(kvlist, PDUMP_MSIZE_ARG,
 353                                                 &parse_uint_value, &v);
 354                 if (ret < 0)
 355                         goto free_kvlist;
 356                 pt->mbuf_data_size = (uint16_t) v.val;
 357         } else
 358                 pt->mbuf_data_size = RTE_MBUF_DEFAULT_BUF_SIZE;
 359
 360         /* total_num_mbufs parsing and validation */
 361         cnt1 = rte_kvargs_count(kvlist, PDUMP_NUM_MBUFS_ARG);
 362         if (cnt1 == 1) {
 363                 v.min = 1025;
 364                 v.max = UINT16_MAX;
 365                 ret = rte_kvargs_process(kvlist, PDUMP_NUM_MBUFS_ARG,
 366                                                 &parse_uint_value, &v);
 367                 if (ret < 0)
 368                         goto free_kvlist;
 369                 pt->total_num_mbufs = (uint16_t) v.val;
 370         } else
 371                 pt->total_num_mbufs = MBUFS_PER_POOL;
 372
 373         num_tuples++;
 374
 375 free_kvlist:
 376         rte_kvargs_free(kvlist);
 377         return ret;
 378 }
 379
 380 /* Parse the argument given in the command line of the application */
 381 static int
 382 launch_args_parse(int argc, char **argv, char *prgname)
 383 {
 384         int opt, ret;
 385         int option_index;
 386         static struct option long_option[] = {
 387                 {CMD_LINE_OPT_PDUMP, 1, 0, CMD_LINE_OPT_PDUMP_NUM},
 388                 {CMD_LINE_OPT_MULTI, 0, 0, CMD_LINE_OPT_MULTI_NUM},
 389                 {NULL, 0, 0, 0}
 390         };
 391
 392         if (argc == 1)
 393                 pdump_usage(prgname);
 394
 395         /* Parse command line */
 396         while ((opt = getopt_long(argc, argv, " ",
 397                         long_option, &option_index)) != EOF) {
 398                 switch (opt) {
 399                 case CMD_LINE_OPT_PDUMP_NUM:
 400                         ret = parse_pdump(optarg);
 401                         if (ret) {
 402                                 pdump_usage(prgname);
 403                                 return -1;
 404                         }
 405                         break;
 406                 case CMD_LINE_OPT_MULTI_NUM:
 407                         multiple_core_capture = 1;
 408                         break;
 409                 default:
 410                         pdump_usage(prgname);
 411                         return -1;
 412                 }
 413         }
 414
 415         return 0;
 416 }
 417
 418 static void
 419 monitor_primary(void *arg __rte_unused)
 420 {
 421         if (quit_signal)
 422                 return;
 423
 424         if (rte_eal_primary_proc_alive(NULL)) {
 425                 rte_eal_alarm_set(MONITOR_INTERVAL, monitor_primary, NULL);
 426                 return;
 427         }
 428
 429         printf("Primary process is no longer active, exiting...\n");
 430         quit_signal = 1;
 431 }
 432
 433 static void
 434 print_pdump_stats(void)
 435 {
 436         int i;
 437         struct pdump_tuples *pt;
 438
 439         for (i = 0; i < num_tuples; i++) {
 440                 printf("##### PDUMP DEBUG STATS #####\n");
 441                 pt = &pdump_t[i];
 442                 printf(" -packets dequeued:                     %"PRIu64"\n",
 443                                                         pt->stats.dequeue_pkts);
 444                 printf(" -packets transmitted to vdev:          %"PRIu64"\n",
 445                                                         pt->stats.tx_pkts);
 446                 printf(" -packets freed:                        %"PRIu64"\n",
 447                                                         pt->stats.freed_pkts);
 448         }
 449 }
 450
 451 static inline void
 452 disable_pdump(struct pdump_tuples *pt)
 453 {
 454         if (pt->dump_by_type == DEVICE_ID)
 455                 rte_pdump_disable_by_deviceid(pt->device_id, pt->queue,
 456                                                 pt->dir);
 457         else if (pt->dump_by_type == PORT_ID)
 458                 rte_pdump_disable(pt->port, pt->queue, pt->dir);
 459 }
 460
 461 static inline void
 462 pdump_rxtx(struct rte_ring *ring, uint16_t vdev_id, struct pdump_stats *stats)
 463 {
 464         /* write input packets of port to vdev for pdump */
 465         struct rte_mbuf *rxtx_bufs[BURST_SIZE];
 466
 467         /* first dequeue packets from ring of primary process */
 468         const uint16_t nb_in_deq = rte_ring_dequeue_burst(ring,
 469                         (void *)rxtx_bufs, BURST_SIZE, NULL);
 470         stats->dequeue_pkts += nb_in_deq;
 471
 472         if (nb_in_deq) {
 473                 /* then sent on vdev */
 474                 uint16_t nb_in_txd = rte_eth_tx_burst(
 475                                 vdev_id,
 476                                 0, rxtx_bufs, nb_in_deq);
 477                 stats->tx_pkts += nb_in_txd;
 478
 479                 if (unlikely(nb_in_txd < nb_in_deq)) {
 480                         unsigned int drops = nb_in_deq - nb_in_txd;
 481
 482                         rte_pktmbuf_free_bulk(&rxtx_bufs[nb_in_txd], drops);
 483                         stats->freed_pkts += drops;
 484                 }
 485         }
 486 }
 487
 488 static void
 489 free_ring_data(struct rte_ring *ring, uint16_t vdev_id,
 490                 struct pdump_stats *stats)
 491 {
 492         while (rte_ring_count(ring))
 493                 pdump_rxtx(ring, vdev_id, stats);
 494 }
 495
 496 static void
 497 cleanup_rings(void)
 498 {
 499         int i;
 500         struct pdump_tuples *pt;
 501
 502         for (i = 0; i < num_tuples; i++) {
 503                 pt = &pdump_t[i];
 504
 505                 free(pt->device_id);
 506
 507                 /* free the rings */
 508                 rte_ring_free(pt->rx_ring);
 509                 rte_ring_free(pt->tx_ring);
 510         }
 511 }
 512
 513 static void
 514 cleanup_pdump_resources(void)
 515 {
 516         int i;
 517         struct pdump_tuples *pt;
 518         char name[RTE_ETH_NAME_MAX_LEN];
 519
 520         /* disable pdump and free the pdump_tuple resources */
 521         for (i = 0; i < num_tuples; i++) {
 522                 pt = &pdump_t[i];
 523
 524                 /* remove callbacks */
 525                 disable_pdump(pt);
 526
 527                 /*
 528                 * transmit rest of the enqueued packets of the rings on to
 529                 * the vdev, in order to release mbufs to the mepool.
 530                 **/
 531                 if (pt->dir & RTE_PDUMP_FLAG_RX)
 532                         free_ring_data(pt->rx_ring, pt->rx_vdev_id, &pt->stats);
 533                 if (pt->dir & RTE_PDUMP_FLAG_TX)
 534                         free_ring_data(pt->tx_ring, pt->tx_vdev_id, &pt->stats);
 535
 536                 /* Remove the vdev(s) created */
 537                 if (pt->dir & RTE_PDUMP_FLAG_RX) {
 538                         rte_eth_dev_get_name_by_port(pt->rx_vdev_id, name);
 539                         rte_eal_hotplug_remove("vdev", name);
 540                 }
 541
 542                 if (pt->single_pdump_dev)
 543                         continue;
 544
 545                 if (pt->dir & RTE_PDUMP_FLAG_TX) {
 546                         rte_eth_dev_get_name_by_port(pt->tx_vdev_id, name);
 547                         rte_eal_hotplug_remove("vdev", name);
 548                 }
 549
 550         }
 551         cleanup_rings();
 552 }
 553
 554 static void
 555 disable_primary_monitor(void)
 556 {
 557         int ret;
 558
 559         /*
 560          * Cancel monitoring of primary process.
 561          * There will be no error if no alarm is set
 562          * (in case primary process kill was detected earlier).
 563          */
 564         ret = rte_eal_alarm_cancel(monitor_primary, NULL);
 565         if (ret < 0)
 566                 printf("Fail to disable monitor:%d\n", ret);
 567 }
 568
 569 static void
 570 signal_handler(int sig_num)
 571 {
 572         if (sig_num == SIGINT) {
 573                 printf("\n\nSignal %d received, preparing to exit...\n",
 574                                 sig_num);
 575                 quit_signal = 1;
 576         }
 577 }
 578
 579 static inline int
 580 configure_vdev(uint16_t port_id)
 581 {
 582         struct rte_ether_addr addr;
 583         const uint16_t rxRings = 0, txRings = 1;
 584         int ret;
 585         uint16_t q;
 586
 587         if (!rte_eth_dev_is_valid_port(port_id))
 588                 return -1;
 589
 590         ret = rte_eth_dev_configure(port_id, rxRings, txRings,
 591                                         &port_conf_default);
 592         if (ret != 0)
 593                 rte_exit(EXIT_FAILURE, "dev config failed\n");
 594
 595         for (q = 0; q < txRings; q++) {
 596                 ret = rte_eth_tx_queue_setup(port_id, q, TX_DESC_PER_QUEUE,
 597                                 rte_eth_dev_socket_id(port_id), NULL);
 598                 if (ret < 0)
 599                         rte_exit(EXIT_FAILURE, "queue setup failed\n");
 600         }
 601
 602         ret = rte_eth_dev_start(port_id);
 603         if (ret < 0)
 604                 rte_exit(EXIT_FAILURE, "dev start failed\n");
 605
 606         ret = rte_eth_macaddr_get(port_id, &addr);
 607         if (ret != 0)
 608                 rte_exit(EXIT_FAILURE, "macaddr get failed\n");
 609
 610         printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
 611                         " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
 612                         port_id, RTE_ETHER_ADDR_BYTES(&addr));
 613
 614         ret = rte_eth_promiscuous_enable(port_id);
 615         if (ret != 0) {
 616                 rte_exit(EXIT_FAILURE,
 617                          "promiscuous mode enable failed: %s\n",
 618                          rte_strerror(-ret));
 619                 return ret;
 620         }
 621
 622         return 0;
 623 }
 624
 625 static void
 626 create_mp_ring_vdev(void)
 627 {
 628         int i;
 629         uint16_t portid;
 630         struct pdump_tuples *pt = NULL;
 631         struct rte_mempool *mbuf_pool = NULL;
 632         char vdev_name[SIZE];
 633         char vdev_args[SIZE];
 634         char ring_name[SIZE];
 635         char mempool_name[SIZE];
 636
 637         for (i = 0; i < num_tuples; i++) {
 638                 pt = &pdump_t[i];
 639                 snprintf(mempool_name, SIZE, MP_NAME, i);
 640                 mbuf_pool = rte_mempool_lookup(mempool_name);
 641                 if (mbuf_pool == NULL) {
 642                         /* create mempool */
 643                         mbuf_pool = rte_pktmbuf_pool_create_by_ops(mempool_name,
 644                                         pt->total_num_mbufs,
 645                                         MBUF_POOL_CACHE_SIZE, 0,
 646                                         pt->mbuf_data_size,
 647                                         rte_socket_id(), "ring_mp_mc");
 648                         if (mbuf_pool == NULL) {
 649                                 cleanup_rings();
 650                                 rte_exit(EXIT_FAILURE,
 651                                         "Mempool creation failed: %s\n",
 652                                         rte_strerror(rte_errno));
 653                         }
 654                 }
 655                 pt->mp = mbuf_pool;
 656
 657                 if (pt->dir == RTE_PDUMP_FLAG_RXTX) {
 658                         /* if captured packets has to send to the same vdev */
 659                         /* create rx_ring */
 660                         snprintf(ring_name, SIZE, RX_RING, i);
 661                         pt->rx_ring = rte_ring_create(ring_name, pt->ring_size,
 662                                         rte_socket_id(), 0);
 663                         if (pt->rx_ring == NULL) {
 664                                 cleanup_rings();
 665                                 rte_exit(EXIT_FAILURE, "%s:%s:%d\n",
 666                                                 rte_strerror(rte_errno),
 667                                                 __func__, __LINE__);
 668                         }
 669
 670                         /* create tx_ring */
 671                         snprintf(ring_name, SIZE, TX_RING, i);
 672                         pt->tx_ring = rte_ring_create(ring_name, pt->ring_size,
 673                                         rte_socket_id(), 0);
 674                         if (pt->tx_ring == NULL) {
 675                                 cleanup_rings();
 676                                 rte_exit(EXIT_FAILURE, "%s:%s:%d\n",
 677                                                 rte_strerror(rte_errno),
 678                                                 __func__, __LINE__);
 679                         }
 680
 681                         /* create vdevs */
 682                         snprintf(vdev_name, sizeof(vdev_name),
 683                                  VDEV_NAME_FMT, RX_STR, i);
 684                         (pt->rx_vdev_stream_type == IFACE) ?
 685                         snprintf(vdev_args, sizeof(vdev_args),
 686                                  VDEV_IFACE_ARGS_FMT, pt->rx_dev) :
 687                         snprintf(vdev_args, sizeof(vdev_args),
 688                                  VDEV_PCAP_ARGS_FMT, pt->rx_dev);
 689                         if (rte_eal_hotplug_add("vdev", vdev_name,
 690                                                 vdev_args) < 0) {
 691                                 cleanup_rings();
 692                                 rte_exit(EXIT_FAILURE,
 693                                         "vdev creation failed:%s:%d\n",
 694                                         __func__, __LINE__);
 695                         }
 696                         if (rte_eth_dev_get_port_by_name(vdev_name,
 697                                                          &portid) != 0) {
 698                                 rte_eal_hotplug_remove("vdev", vdev_name);
 699                                 cleanup_rings();
 700                                 rte_exit(EXIT_FAILURE,
 701                                         "cannot find added vdev %s:%s:%d\n",
 702                                         vdev_name, __func__, __LINE__);
 703                         }
 704                         pt->rx_vdev_id = portid;
 705
 706                         /* configure vdev */
 707                         configure_vdev(pt->rx_vdev_id);
 708
 709                         if (pt->single_pdump_dev)
 710                                 pt->tx_vdev_id = portid;
 711                         else {
 712                                 snprintf(vdev_name, sizeof(vdev_name),
 713                                          VDEV_NAME_FMT, TX_STR, i);
 714                                 (pt->rx_vdev_stream_type == IFACE) ?
 715                                 snprintf(vdev_args, sizeof(vdev_args),
 716                                          VDEV_IFACE_ARGS_FMT, pt->tx_dev) :
 717                                 snprintf(vdev_args, sizeof(vdev_args),
 718                                          VDEV_PCAP_ARGS_FMT, pt->tx_dev);
 719                                 if (rte_eal_hotplug_add("vdev", vdev_name,
 720                                                         vdev_args) < 0) {
 721                                         cleanup_rings();
 722                                         rte_exit(EXIT_FAILURE,
 723                                                 "vdev creation failed:"
 724                                                 "%s:%d\n", __func__, __LINE__);
 725                                 }
 726                                 if (rte_eth_dev_get_port_by_name(vdev_name,
 727                                                 &portid) != 0) {
 728                                         rte_eal_hotplug_remove("vdev",
 729                                                                vdev_name);
 730                                         cleanup_rings();
 731                                         rte_exit(EXIT_FAILURE,
 732                                                 "cannot find added vdev %s:%s:%d\n",
 733                                                 vdev_name, __func__, __LINE__);
 734                                 }
 735                                 pt->tx_vdev_id = portid;
 736
 737                                 /* configure vdev */
 738                                 configure_vdev(pt->tx_vdev_id);
 739                         }
 740                 } else if (pt->dir == RTE_PDUMP_FLAG_RX) {
 741
 742                         /* create rx_ring */
 743                         snprintf(ring_name, SIZE, RX_RING, i);
 744                         pt->rx_ring = rte_ring_create(ring_name, pt->ring_size,
 745                                         rte_socket_id(), 0);
 746                         if (pt->rx_ring == NULL) {
 747                                 cleanup_rings();
 748                                 rte_exit(EXIT_FAILURE, "%s\n",
 749                                         rte_strerror(rte_errno));
 750                         }
 751
 752                         snprintf(vdev_name, sizeof(vdev_name),
 753                                  VDEV_NAME_FMT, RX_STR, i);
 754                         (pt->rx_vdev_stream_type == IFACE) ?
 755                         snprintf(vdev_args, sizeof(vdev_args),
 756                                  VDEV_IFACE_ARGS_FMT, pt->rx_dev) :
 757                         snprintf(vdev_args, sizeof(vdev_args),
 758                                  VDEV_PCAP_ARGS_FMT, pt->rx_dev);
 759                         if (rte_eal_hotplug_add("vdev", vdev_name,
 760                                                 vdev_args) < 0) {
 761                                 cleanup_rings();
 762                                 rte_exit(EXIT_FAILURE,
 763                                         "vdev creation failed:%s:%d\n",
 764                                         __func__, __LINE__);
 765                         }
 766                         if (rte_eth_dev_get_port_by_name(vdev_name,
 767                                                          &portid) != 0) {
 768                                 rte_eal_hotplug_remove("vdev", vdev_name);
 769                                 cleanup_rings();
 770                                 rte_exit(EXIT_FAILURE,
 771                                         "cannot find added vdev %s:%s:%d\n",
 772                                         vdev_name, __func__, __LINE__);
 773                         }
 774                         pt->rx_vdev_id = portid;
 775                         /* configure vdev */
 776                         configure_vdev(pt->rx_vdev_id);
 777                 } else if (pt->dir == RTE_PDUMP_FLAG_TX) {
 778
 779                         /* create tx_ring */
 780                         snprintf(ring_name, SIZE, TX_RING, i);
 781                         pt->tx_ring = rte_ring_create(ring_name, pt->ring_size,
 782                                         rte_socket_id(), 0);
 783                         if (pt->tx_ring == NULL) {
 784                                 cleanup_rings();
 785                                 rte_exit(EXIT_FAILURE, "%s\n",
 786                                         rte_strerror(rte_errno));
 787                         }
 788
 789                         snprintf(vdev_name, sizeof(vdev_name),
 790                                  VDEV_NAME_FMT, TX_STR, i);
 791                         (pt->tx_vdev_stream_type == IFACE) ?
 792                         snprintf(vdev_args, sizeof(vdev_args),
 793                                  VDEV_IFACE_ARGS_FMT, pt->tx_dev) :
 794                         snprintf(vdev_args, sizeof(vdev_args),
 795                                  VDEV_PCAP_ARGS_FMT, pt->tx_dev);
 796                         if (rte_eal_hotplug_add("vdev", vdev_name,
 797                                                 vdev_args) < 0) {
 798                                 cleanup_rings();
 799                                 rte_exit(EXIT_FAILURE,
 800                                         "vdev creation failed\n");
 801                         }
 802                         if (rte_eth_dev_get_port_by_name(vdev_name,
 803                                                          &portid) != 0) {
 804                                 rte_eal_hotplug_remove("vdev", vdev_name);
 805                                 cleanup_rings();
 806                                 rte_exit(EXIT_FAILURE,
 807                                         "cannot find added vdev %s:%s:%d\n",
 808                                         vdev_name, __func__, __LINE__);
 809                         }
 810                         pt->tx_vdev_id = portid;
 811
 812                         /* configure vdev */
 813                         configure_vdev(pt->tx_vdev_id);
 814                 }
 815         }
 816 }
 817
 818 static void
 819 enable_pdump(void)
 820 {
 821         int i;
 822         struct pdump_tuples *pt;
 823         int ret = 0, ret1 = 0;
 824
 825         for (i = 0; i < num_tuples; i++) {
 826                 pt = &pdump_t[i];
 827                 if (pt->dir == RTE_PDUMP_FLAG_RXTX) {
 828                         if (pt->dump_by_type == DEVICE_ID) {
 829                                 ret = rte_pdump_enable_by_deviceid(
 830                                                 pt->device_id,
 831                                                 pt->queue,
 832                                                 RTE_PDUMP_FLAG_RX,
 833                                                 pt->rx_ring,
 834                                                 pt->mp, NULL);
 835                                 ret1 = rte_pdump_enable_by_deviceid(
 836                                                 pt->device_id,
 837                                                 pt->queue,
 838                                                 RTE_PDUMP_FLAG_TX,
 839                                                 pt->tx_ring,
 840                                                 pt->mp, NULL);
 841                         } else if (pt->dump_by_type == PORT_ID) {
 842                                 ret = rte_pdump_enable(pt->port, pt->queue,
 843                                                 RTE_PDUMP_FLAG_RX,
 844                                                 pt->rx_ring, pt->mp, NULL);
 845                                 ret1 = rte_pdump_enable(pt->port, pt->queue,
 846                                                 RTE_PDUMP_FLAG_TX,
 847                                                 pt->tx_ring, pt->mp, NULL);
 848                         }
 849                 } else if (pt->dir == RTE_PDUMP_FLAG_RX) {
 850                         if (pt->dump_by_type == DEVICE_ID)
 851                                 ret = rte_pdump_enable_by_deviceid(
 852                                                 pt->device_id,
 853                                                 pt->queue,
 854                                                 pt->dir, pt->rx_ring,
 855                                                 pt->mp, NULL);
 856                         else if (pt->dump_by_type == PORT_ID)
 857                                 ret = rte_pdump_enable(pt->port, pt->queue,
 858                                                 pt->dir,
 859                                                 pt->rx_ring, pt->mp, NULL);
 860                 } else if (pt->dir == RTE_PDUMP_FLAG_TX) {
 861                         if (pt->dump_by_type == DEVICE_ID)
 862                                 ret = rte_pdump_enable_by_deviceid(
 863                                                 pt->device_id,
 864                                                 pt->queue,
 865                                                 pt->dir,
 866                                                 pt->tx_ring, pt->mp, NULL);
 867                         else if (pt->dump_by_type == PORT_ID)
 868                                 ret = rte_pdump_enable(pt->port, pt->queue,
 869                                                 pt->dir,
 870                                                 pt->tx_ring, pt->mp, NULL);
 871                 }
 872                 if (ret < 0 || ret1 < 0) {
 873                         cleanup_pdump_resources();
 874                         rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
 875                 }
 876         }
 877 }
 878
 879 static inline void
 880 pdump_packets(struct pdump_tuples *pt)
 881 {
 882         if (pt->dir & RTE_PDUMP_FLAG_RX)
 883                 pdump_rxtx(pt->rx_ring, pt->rx_vdev_id, &pt->stats);
 884         if (pt->dir & RTE_PDUMP_FLAG_TX)
 885                 pdump_rxtx(pt->tx_ring, pt->tx_vdev_id, &pt->stats);
 886 }
 887
 888 static int
 889 dump_packets_core(void *arg)
 890 {
 891         struct pdump_tuples *pt = (struct pdump_tuples *) arg;
 892
 893         printf(" core (%u); port %u device (%s) queue %u\n",
 894                         rte_lcore_id(), pt->port, pt->device_id, pt->queue);
 895         fflush(stdout);
 896
 897         while (!quit_signal)
 898                 pdump_packets(pt);
 899
 900         return 0;
 901 }
 902
 903 static unsigned int
 904 get_next_core(unsigned int lcore)
 905 {
 906         lcore = rte_get_next_lcore(lcore, 1, 0);
 907         if (lcore == RTE_MAX_LCORE)
 908                 rte_exit(EXIT_FAILURE,
 909                                 "Max core limit %u reached for packet capture", lcore);
 910         return lcore;
 911 }
 912
 913 static inline void
 914 dump_packets(void)
 915 {
 916         int i;
 917         unsigned int lcore_id = 0;
 918
 919         if (!multiple_core_capture) {
 920                 printf(" core (%u), capture for (%d) tuples\n",
 921                                 rte_lcore_id(), num_tuples);
 922
 923                 for (i = 0; i < num_tuples; i++)
 924                         printf(" - port %u device (%s) queue %u\n",
 925                                 pdump_t[i].port,
 926                                 pdump_t[i].device_id,
 927                                 pdump_t[i].queue);
 928
 929                 while (!quit_signal) {
 930                         for (i = 0; i < num_tuples; i++)
 931                                 pdump_packets(&pdump_t[i]);
 932                 }
 933
 934                 return;
 935         }
 936
 937         /* check if there enough core */
 938         if ((uint32_t)num_tuples >= rte_lcore_count()) {
 939                 printf("Insufficient cores to run parallel!\n");
 940                 return;
 941         }
 942
 943         lcore_id = get_next_core(lcore_id);
 944
 945         for (i = 0; i < num_tuples; i++) {
 946                 rte_eal_remote_launch(dump_packets_core,
 947                                 &pdump_t[i], lcore_id);
 948                 lcore_id = get_next_core(lcore_id);
 949
 950                 if (rte_eal_wait_lcore(lcore_id) < 0)
 951                         rte_exit(EXIT_FAILURE, "failed to wait\n");
 952         }
 953
 954         /* main core */
 955         while (!quit_signal)
 956                 ;
 957 }
 958
 959 static void
 960 enable_primary_monitor(void)
 961 {
 962         int ret;
 963
 964         /* Once primary exits, so will pdump. */
 965         ret = rte_eal_alarm_set(MONITOR_INTERVAL, monitor_primary, NULL);
 966         if (ret < 0)
 967                 printf("Fail to enable monitor:%d\n", ret);
 968 }
 969
 970 int
 971 main(int argc, char **argv)
 972 {
 973         int diag;
 974         int ret;
 975         int i;
 976
 977         char n_flag[] = "-n4";
 978         char mp_flag[] = "--proc-type=secondary";
 979         char *argp[argc + 2];
 980
 981         /* catch ctrl-c so we can print on exit */
 982         signal(SIGINT, signal_handler);
 983
 984         argp[0] = argv[0];
 985         argp[1] = n_flag;
 986         argp[2] = mp_flag;
 987
 988         for (i = 1; i < argc; i++)
 989                 argp[i + 2] = argv[i];
 990
 991         argc += 2;
 992
 993         diag = rte_eal_init(argc, argp);
 994         if (diag < 0)
 995                 rte_panic("Cannot init EAL\n");
 996
 997         if (rte_eth_dev_count_avail() == 0)
 998                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 999
1000         argc -= diag;
1001         argv += (diag - 2);
1002
1003         /* parse app arguments */
1004         if (argc > 1) {
1005                 ret = launch_args_parse(argc, argv, argp[0]);
1006                 if (ret < 0)
1007                         rte_exit(EXIT_FAILURE, "Invalid argument\n");
1008         }
1009
1010         /* create mempool, ring and vdevs info */
1011         create_mp_ring_vdev();
1012         enable_pdump();
1013         enable_primary_monitor();
1014         dump_packets();
1015
1016         disable_primary_monitor();
1017         cleanup_pdump_resources();
1018         /* dump debug stats */
1019         print_pdump_stats();
1020
1021         ret = rte_eal_cleanup();
1022         if (ret)
1023                 printf("Error from rte_eal_cleanup(), %d\n", ret);
1024
1025         return 0;
1026 }