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                         do {
 481                                 rte_pktmbuf_free(rxtx_bufs[nb_in_txd]);
 482                                 stats->freed_pkts++;
 483                         } while (++nb_in_txd < nb_in_deq);
 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                 if (pt->device_id)
 506                         free(pt->device_id);
 507
 508                 /* free the rings */
 509                 if (pt->rx_ring)
 510                         rte_ring_free(pt->rx_ring);
 511                 if (pt->tx_ring)
 512                         rte_ring_free(pt->tx_ring);
 513         }
 514 }
 515
 516 static void
 517 cleanup_pdump_resources(void)
 518 {
 519         int i;
 520         struct pdump_tuples *pt;
 521         char name[RTE_ETH_NAME_MAX_LEN];
 522
 523         /* disable pdump and free the pdump_tuple resources */
 524         for (i = 0; i < num_tuples; i++) {
 525                 pt = &pdump_t[i];
 526
 527                 /* remove callbacks */
 528                 disable_pdump(pt);
 529
 530                 /*
 531                 * transmit rest of the enqueued packets of the rings on to
 532                 * the vdev, in order to release mbufs to the mepool.
 533                 **/
 534                 if (pt->dir & RTE_PDUMP_FLAG_RX)
 535                         free_ring_data(pt->rx_ring, pt->rx_vdev_id, &pt->stats);
 536                 if (pt->dir & RTE_PDUMP_FLAG_TX)
 537                         free_ring_data(pt->tx_ring, pt->tx_vdev_id, &pt->stats);
 538
 539                 /* Remove the vdev(s) created */
 540                 if (pt->dir & RTE_PDUMP_FLAG_RX) {
 541                         rte_eth_dev_get_name_by_port(pt->rx_vdev_id, name);
 542                         rte_eal_hotplug_remove("vdev", name);
 543                 }
 544
 545                 if (pt->single_pdump_dev)
 546                         continue;
 547
 548                 if (pt->dir & RTE_PDUMP_FLAG_TX) {
 549                         rte_eth_dev_get_name_by_port(pt->tx_vdev_id, name);
 550                         rte_eal_hotplug_remove("vdev", name);
 551                 }
 552
 553         }
 554         cleanup_rings();
 555 }
 556
 557 static void
 558 disable_primary_monitor(void)
 559 {
 560         int ret;
 561
 562         /*
 563          * Cancel monitoring of primary process.
 564          * There will be no error if no alarm is set
 565          * (in case primary process kill was detected earlier).
 566          */
 567         ret = rte_eal_alarm_cancel(monitor_primary, NULL);
 568         if (ret < 0)
 569                 printf("Fail to disable monitor:%d\n", ret);
 570 }
 571
 572 static void
 573 signal_handler(int sig_num)
 574 {
 575         if (sig_num == SIGINT) {
 576                 printf("\n\nSignal %d received, preparing to exit...\n",
 577                                 sig_num);
 578                 quit_signal = 1;
 579         }
 580 }
 581
 582 static inline int
 583 configure_vdev(uint16_t port_id)
 584 {
 585         struct rte_ether_addr addr;
 586         const uint16_t rxRings = 0, txRings = 1;
 587         int ret;
 588         uint16_t q;
 589
 590         if (!rte_eth_dev_is_valid_port(port_id))
 591                 return -1;
 592
 593         ret = rte_eth_dev_configure(port_id, rxRings, txRings,
 594                                         &port_conf_default);
 595         if (ret != 0)
 596                 rte_exit(EXIT_FAILURE, "dev config failed\n");
 597
 598          for (q = 0; q < txRings; q++) {
 599                 ret = rte_eth_tx_queue_setup(port_id, q, TX_DESC_PER_QUEUE,
 600                                 rte_eth_dev_socket_id(port_id), NULL);
 601                 if (ret < 0)
 602                         rte_exit(EXIT_FAILURE, "queue setup failed\n");
 603         }
 604
 605         ret = rte_eth_dev_start(port_id);
 606         if (ret < 0)
 607                 rte_exit(EXIT_FAILURE, "dev start failed\n");
 608
 609         rte_eth_macaddr_get(port_id, &addr);
 610         printf("Port %u MAC: %02"PRIx8" %02"PRIx8" %02"PRIx8
 611                         " %02"PRIx8" %02"PRIx8" %02"PRIx8"\n",
 612                         port_id,
 613                         addr.addr_bytes[0], addr.addr_bytes[1],
 614                         addr.addr_bytes[2], addr.addr_bytes[3],
 615                         addr.addr_bytes[4], addr.addr_bytes[5]);
 616
 617         rte_eth_promiscuous_enable(port_id);
 618
 619         return 0;
 620 }
 621
 622 static void
 623 create_mp_ring_vdev(void)
 624 {
 625         int i;
 626         uint16_t portid;
 627         struct pdump_tuples *pt = NULL;
 628         struct rte_mempool *mbuf_pool = NULL;
 629         char vdev_name[SIZE];
 630         char vdev_args[SIZE];
 631         char ring_name[SIZE];
 632         char mempool_name[SIZE];
 633
 634         for (i = 0; i < num_tuples; i++) {
 635                 pt = &pdump_t[i];
 636                 snprintf(mempool_name, SIZE, MP_NAME, i);
 637                 mbuf_pool = rte_mempool_lookup(mempool_name);
 638                 if (mbuf_pool == NULL) {
 639                         /* create mempool */
 640                         mbuf_pool = rte_pktmbuf_pool_create_by_ops(mempool_name,
 641                                         pt->total_num_mbufs,
 642                                         MBUF_POOL_CACHE_SIZE, 0,
 643                                         pt->mbuf_data_size,
 644                                         rte_socket_id(), "ring_mp_mc");
 645                         if (mbuf_pool == NULL) {
 646                                 cleanup_rings();
 647                                 rte_exit(EXIT_FAILURE,
 648                                         "Mempool creation failed: %s\n",
 649                                         rte_strerror(rte_errno));
 650                         }
 651                 }
 652                 pt->mp = mbuf_pool;
 653
 654                 if (pt->dir == RTE_PDUMP_FLAG_RXTX) {
 655                         /* if captured packets has to send to the same vdev */
 656                         /* create rx_ring */
 657                         snprintf(ring_name, SIZE, RX_RING, i);
 658                         pt->rx_ring = rte_ring_create(ring_name, pt->ring_size,
 659                                         rte_socket_id(), 0);
 660                         if (pt->rx_ring == NULL) {
 661                                 cleanup_rings();
 662                                 rte_exit(EXIT_FAILURE, "%s:%s:%d\n",
 663                                                 rte_strerror(rte_errno),
 664                                                 __func__, __LINE__);
 665                         }
 666
 667                         /* create tx_ring */
 668                         snprintf(ring_name, SIZE, TX_RING, i);
 669                         pt->tx_ring = rte_ring_create(ring_name, pt->ring_size,
 670                                         rte_socket_id(), 0);
 671                         if (pt->tx_ring == NULL) {
 672                                 cleanup_rings();
 673                                 rte_exit(EXIT_FAILURE, "%s:%s:%d\n",
 674                                                 rte_strerror(rte_errno),
 675                                                 __func__, __LINE__);
 676                         }
 677
 678                         /* create vdevs */
 679                         snprintf(vdev_name, sizeof(vdev_name),
 680                                  VDEV_NAME_FMT, RX_STR, i);
 681                         (pt->rx_vdev_stream_type == IFACE) ?
 682                         snprintf(vdev_args, sizeof(vdev_args),
 683                                  VDEV_IFACE_ARGS_FMT, pt->rx_dev) :
 684                         snprintf(vdev_args, sizeof(vdev_args),
 685                                  VDEV_PCAP_ARGS_FMT, pt->rx_dev);
 686                         if (rte_eal_hotplug_add("vdev", vdev_name,
 687                                                 vdev_args) < 0) {
 688                                 cleanup_rings();
 689                                 rte_exit(EXIT_FAILURE,
 690                                         "vdev creation failed:%s:%d\n",
 691                                         __func__, __LINE__);
 692                         }
 693                         if (rte_eth_dev_get_port_by_name(vdev_name,
 694                                                          &portid) != 0) {
 695                                 rte_eal_hotplug_remove("vdev", vdev_name);
 696                                 cleanup_rings();
 697                                 rte_exit(EXIT_FAILURE,
 698                                         "cannot find added vdev %s:%s:%d\n",
 699                                         vdev_name, __func__, __LINE__);
 700                         }
 701                         pt->rx_vdev_id = portid;
 702
 703                         /* configure vdev */
 704                         configure_vdev(pt->rx_vdev_id);
 705
 706                         if (pt->single_pdump_dev)
 707                                 pt->tx_vdev_id = portid;
 708                         else {
 709                                 snprintf(vdev_name, sizeof(vdev_name),
 710                                          VDEV_NAME_FMT, TX_STR, i);
 711                                 (pt->rx_vdev_stream_type == IFACE) ?
 712                                 snprintf(vdev_args, sizeof(vdev_args),
 713                                          VDEV_IFACE_ARGS_FMT, pt->tx_dev) :
 714                                 snprintf(vdev_args, sizeof(vdev_args),
 715                                          VDEV_PCAP_ARGS_FMT, pt->tx_dev);
 716                                 if (rte_eal_hotplug_add("vdev", vdev_name,
 717                                                         vdev_args) < 0) {
 718                                         cleanup_rings();
 719                                         rte_exit(EXIT_FAILURE,
 720                                                 "vdev creation failed:"
 721                                                 "%s:%d\n", __func__, __LINE__);
 722                                 }
 723                                 if (rte_eth_dev_get_port_by_name(vdev_name,
 724                                                 &portid) != 0) {
 725                                         rte_eal_hotplug_remove("vdev",
 726                                                                vdev_name);
 727                                         cleanup_rings();
 728                                         rte_exit(EXIT_FAILURE,
 729                                                 "cannot find added vdev %s:%s:%d\n",
 730                                                 vdev_name, __func__, __LINE__);
 731                                 }
 732                                 pt->tx_vdev_id = portid;
 733
 734                                 /* configure vdev */
 735                                 configure_vdev(pt->tx_vdev_id);
 736                         }
 737                 } else if (pt->dir == RTE_PDUMP_FLAG_RX) {
 738
 739                         /* create rx_ring */
 740                         snprintf(ring_name, SIZE, RX_RING, i);
 741                         pt->rx_ring = rte_ring_create(ring_name, pt->ring_size,
 742                                         rte_socket_id(), 0);
 743                         if (pt->rx_ring == NULL) {
 744                                 cleanup_rings();
 745                                 rte_exit(EXIT_FAILURE, "%s\n",
 746                                         rte_strerror(rte_errno));
 747                         }
 748
 749                         snprintf(vdev_name, sizeof(vdev_name),
 750                                  VDEV_NAME_FMT, RX_STR, i);
 751                         (pt->rx_vdev_stream_type == IFACE) ?
 752                         snprintf(vdev_args, sizeof(vdev_args),
 753                                  VDEV_IFACE_ARGS_FMT, pt->rx_dev) :
 754                         snprintf(vdev_args, sizeof(vdev_args),
 755                                  VDEV_PCAP_ARGS_FMT, pt->rx_dev);
 756                         if (rte_eal_hotplug_add("vdev", vdev_name,
 757                                                 vdev_args) < 0) {
 758                                 cleanup_rings();
 759                                 rte_exit(EXIT_FAILURE,
 760                                         "vdev creation failed:%s:%d\n",
 761                                         __func__, __LINE__);
 762                         }
 763                         if (rte_eth_dev_get_port_by_name(vdev_name,
 764                                                          &portid) != 0) {
 765                                 rte_eal_hotplug_remove("vdev", vdev_name);
 766                                 cleanup_rings();
 767                                 rte_exit(EXIT_FAILURE,
 768                                         "cannot find added vdev %s:%s:%d\n",
 769                                         vdev_name, __func__, __LINE__);
 770                         }
 771                         pt->rx_vdev_id = portid;
 772                         /* configure vdev */
 773                         configure_vdev(pt->rx_vdev_id);
 774                 } else if (pt->dir == RTE_PDUMP_FLAG_TX) {
 775
 776                         /* create tx_ring */
 777                         snprintf(ring_name, SIZE, TX_RING, i);
 778                         pt->tx_ring = rte_ring_create(ring_name, pt->ring_size,
 779                                         rte_socket_id(), 0);
 780                         if (pt->tx_ring == NULL) {
 781                                 cleanup_rings();
 782                                 rte_exit(EXIT_FAILURE, "%s\n",
 783                                         rte_strerror(rte_errno));
 784                         }
 785
 786                         snprintf(vdev_name, sizeof(vdev_name),
 787                                  VDEV_NAME_FMT, TX_STR, i);
 788                         (pt->tx_vdev_stream_type == IFACE) ?
 789                         snprintf(vdev_args, sizeof(vdev_args),
 790                                  VDEV_IFACE_ARGS_FMT, pt->tx_dev) :
 791                         snprintf(vdev_args, sizeof(vdev_args),
 792                                  VDEV_PCAP_ARGS_FMT, pt->tx_dev);
 793                         if (rte_eal_hotplug_add("vdev", vdev_name,
 794                                                 vdev_args) < 0) {
 795                                 cleanup_rings();
 796                                 rte_exit(EXIT_FAILURE,
 797                                         "vdev creation failed\n");
 798                         }
 799                         if (rte_eth_dev_get_port_by_name(vdev_name,
 800                                                          &portid) != 0) {
 801                                 rte_eal_hotplug_remove("vdev", vdev_name);
 802                                 cleanup_rings();
 803                                 rte_exit(EXIT_FAILURE,
 804                                         "cannot find added vdev %s:%s:%d\n",
 805                                         vdev_name, __func__, __LINE__);
 806                         }
 807                         pt->tx_vdev_id = portid;
 808
 809                         /* configure vdev */
 810                         configure_vdev(pt->tx_vdev_id);
 811                 }
 812         }
 813 }
 814
 815 static void
 816 enable_pdump(void)
 817 {
 818         int i;
 819         struct pdump_tuples *pt;
 820         int ret = 0, ret1 = 0;
 821
 822         for (i = 0; i < num_tuples; i++) {
 823                 pt = &pdump_t[i];
 824                 if (pt->dir == RTE_PDUMP_FLAG_RXTX) {
 825                         if (pt->dump_by_type == DEVICE_ID) {
 826                                 ret = rte_pdump_enable_by_deviceid(
 827                                                 pt->device_id,
 828                                                 pt->queue,
 829                                                 RTE_PDUMP_FLAG_RX,
 830                                                 pt->rx_ring,
 831                                                 pt->mp, NULL);
 832                                 ret1 = rte_pdump_enable_by_deviceid(
 833                                                 pt->device_id,
 834                                                 pt->queue,
 835                                                 RTE_PDUMP_FLAG_TX,
 836                                                 pt->tx_ring,
 837                                                 pt->mp, NULL);
 838                         } else if (pt->dump_by_type == PORT_ID) {
 839                                 ret = rte_pdump_enable(pt->port, pt->queue,
 840                                                 RTE_PDUMP_FLAG_RX,
 841                                                 pt->rx_ring, pt->mp, NULL);
 842                                 ret1 = rte_pdump_enable(pt->port, pt->queue,
 843                                                 RTE_PDUMP_FLAG_TX,
 844                                                 pt->tx_ring, pt->mp, NULL);
 845                         }
 846                 } else if (pt->dir == RTE_PDUMP_FLAG_RX) {
 847                         if (pt->dump_by_type == DEVICE_ID)
 848                                 ret = rte_pdump_enable_by_deviceid(
 849                                                 pt->device_id,
 850                                                 pt->queue,
 851                                                 pt->dir, pt->rx_ring,
 852                                                 pt->mp, NULL);
 853                         else if (pt->dump_by_type == PORT_ID)
 854                                 ret = rte_pdump_enable(pt->port, pt->queue,
 855                                                 pt->dir,
 856                                                 pt->rx_ring, pt->mp, NULL);
 857                 } else if (pt->dir == RTE_PDUMP_FLAG_TX) {
 858                         if (pt->dump_by_type == DEVICE_ID)
 859                                 ret = rte_pdump_enable_by_deviceid(
 860                                                 pt->device_id,
 861                                                 pt->queue,
 862                                                 pt->dir,
 863                                                 pt->tx_ring, pt->mp, NULL);
 864                         else if (pt->dump_by_type == PORT_ID)
 865                                 ret = rte_pdump_enable(pt->port, pt->queue,
 866                                                 pt->dir,
 867                                                 pt->tx_ring, pt->mp, NULL);
 868                 }
 869                 if (ret < 0 || ret1 < 0) {
 870                         cleanup_pdump_resources();
 871                         rte_exit(EXIT_FAILURE, "%s\n", rte_strerror(rte_errno));
 872                 }
 873         }
 874 }
 875
 876 static inline void
 877 pdump_packets(struct pdump_tuples *pt)
 878 {
 879         if (pt->dir & RTE_PDUMP_FLAG_RX)
 880                 pdump_rxtx(pt->rx_ring, pt->rx_vdev_id, &pt->stats);
 881         if (pt->dir & RTE_PDUMP_FLAG_TX)
 882                 pdump_rxtx(pt->tx_ring, pt->tx_vdev_id, &pt->stats);
 883 }
 884
 885 static int
 886 dump_packets_core(void *arg)
 887 {
 888         struct pdump_tuples *pt = (struct pdump_tuples *) arg;
 889
 890         printf(" core (%u); port %u device (%s) queue %u\n",
 891                         rte_lcore_id(), pt->port, pt->device_id, pt->queue);
 892         fflush(stdout);
 893
 894         while (!quit_signal)
 895                 pdump_packets(pt);
 896
 897         return 0;
 898 }
 899
 900 static inline void
 901 dump_packets(void)
 902 {
 903         int i;
 904         uint32_t lcore_id = 0;
 905
 906         if (!multiple_core_capture) {
 907                 printf(" core (%u), capture for (%d) tuples\n",
 908                                 rte_lcore_id(), num_tuples);
 909
 910                 for (i = 0; i < num_tuples; i++)
 911                         printf(" - port %u device (%s) queue %u\n",
 912                                 pdump_t[i].port,
 913                                 pdump_t[i].device_id,
 914                                 pdump_t[i].queue);
 915
 916                 while (!quit_signal) {
 917                         for (i = 0; i < num_tuples; i++)
 918                                 pdump_packets(&pdump_t[i]);
 919                 }
 920
 921                 return;
 922         }
 923
 924         /* check if there enough core */
 925         if ((uint32_t)num_tuples >= rte_lcore_count()) {
 926                 printf("Insufficient cores to run parallel!\n");
 927                 return;
 928         }
 929
 930         lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
 931
 932         for (i = 0; i < num_tuples; i++) {
 933                 rte_eal_remote_launch(dump_packets_core,
 934                                 &pdump_t[i], lcore_id);
 935                 lcore_id = rte_get_next_lcore(lcore_id, 1, 0);
 936
 937                 if (rte_eal_wait_lcore(lcore_id) < 0)
 938                         rte_exit(EXIT_FAILURE, "failed to wait\n");
 939         }
 940
 941         /* master core */
 942         while (!quit_signal)
 943                 ;
 944 }
 945
 946 static void
 947 enable_primary_monitor(void)
 948 {
 949         int ret;
 950
 951         /* Once primary exits, so will pdump. */
 952         ret = rte_eal_alarm_set(MONITOR_INTERVAL, monitor_primary, NULL);
 953         if (ret < 0)
 954                 printf("Fail to enable monitor:%d\n", ret);
 955 }
 956
 957 int
 958 main(int argc, char **argv)
 959 {
 960         int diag;
 961         int ret;
 962         int i;
 963
 964         char n_flag[] = "-n4";
 965         char mp_flag[] = "--proc-type=secondary";
 966         char *argp[argc + 2];
 967
 968         /* catch ctrl-c so we can print on exit */
 969         signal(SIGINT, signal_handler);
 970
 971         argp[0] = argv[0];
 972         argp[1] = n_flag;
 973         argp[2] = mp_flag;
 974
 975         for (i = 1; i < argc; i++)
 976                 argp[i + 2] = argv[i];
 977
 978         argc += 2;
 979
 980         diag = rte_eal_init(argc, argp);
 981         if (diag < 0)
 982                 rte_panic("Cannot init EAL\n");
 983
 984         if (rte_eth_dev_count_avail() == 0)
 985                 rte_exit(EXIT_FAILURE, "No Ethernet ports - bye\n");
 986
 987         argc -= diag;
 988         argv += (diag - 2);
 989
 990         /* parse app arguments */
 991         if (argc > 1) {
 992                 ret = launch_args_parse(argc, argv, argp[0]);
 993                 if (ret < 0)
 994                         rte_exit(EXIT_FAILURE, "Invalid argument\n");
 995         }
 996
 997         /* create mempool, ring and vdevs info */
 998         create_mp_ring_vdev();
 999         enable_pdump();
1000         enable_primary_monitor();
1001         dump_packets();
1002
1003         disable_primary_monitor();
1004         cleanup_pdump_resources();
1005         /* dump debug stats */
1006         print_pdump_stats();
1007
1008         ret = rte_eal_cleanup();
1009         if (ret)
1010                 printf("Error from rte_eal_cleanup(), %d\n", ret);
1011
1012         return 0;
1013 }