app/test/test_pmd_perf.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5
   6 #include <stdio.h>
   7 #include <inttypes.h>
   8 #include <signal.h>
   9 #include <unistd.h>
  10 #include <rte_cycles.h>
  11 #include <rte_ethdev.h>
  12 #include <rte_byteorder.h>
  13 #include <rte_malloc.h>
  14 #include "packet_burst_generator.h"
  15 #include "test.h"
  16
  17 #define NB_ETHPORTS_USED                (1)
  18 #define NB_SOCKETS                      (2)
  19 #define MEMPOOL_CACHE_SIZE 250
  20 #define MAX_PKT_BURST                   (32)
  21 #define RTE_TEST_RX_DESC_DEFAULT        (1024)
  22 #define RTE_TEST_TX_DESC_DEFAULT        (1024)
  23 #define RTE_PORT_ALL            (~(uint16_t)0x0)
  24
  25 /* how long test would take at full line rate */
  26 #define RTE_TEST_DURATION                (2)
  27
  28 /*
  29  * RX and TX Prefetch, Host, and Write-back threshold values should be
  30  * carefully set for optimal performance. Consult the network
  31  * controller's datasheet and supporting DPDK documentation for guidance
  32  * on how these parameters should be set.
  33  */
  34 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
  35 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
  36 #define RX_WTHRESH 0 /**< Default values of RX write-back threshold reg. */
  37
  38 /*
  39  * These default values are optimized for use with the Intel(R) 82599 10 GbE
  40  * Controller and the DPDK ixgbe PMD. Consider using other values for other
  41  * network controllers and/or network drivers.
  42  */
  43 #define TX_PTHRESH 32 /**< Default values of TX prefetch threshold reg. */
  44 #define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
  45 #define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
  46
  47 #define MAX_TRAFFIC_BURST              2048
  48
  49 #define NB_MBUF RTE_MAX(                                                \
  50                 (unsigned)(nb_ports*nb_rx_queue*nb_rxd +                \
  51                            nb_ports*nb_lcores*MAX_PKT_BURST +           \
  52                            nb_ports*nb_tx_queue*nb_txd +                \
  53                            nb_lcores*MEMPOOL_CACHE_SIZE +               \
  54                            nb_ports*MAX_TRAFFIC_BURST),                 \
  55                         (unsigned)8192)
  56
  57
  58 static struct rte_mempool *mbufpool[NB_SOCKETS];
  59 /* ethernet addresses of ports */
  60 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
  61
  62 static struct rte_eth_conf port_conf = {
  63         .rxmode = {
  64                 .mq_mode = RTE_ETH_MQ_RX_NONE,
  65                 .split_hdr_size = 0,
  66         },
  67         .txmode = {
  68                 .mq_mode = RTE_ETH_MQ_TX_NONE,
  69         },
  70         .lpbk_mode = 1,  /* enable loopback */
  71 };
  72
  73 static struct rte_eth_rxconf rx_conf = {
  74         .rx_thresh = {
  75                 .pthresh = RX_PTHRESH,
  76                 .hthresh = RX_HTHRESH,
  77                 .wthresh = RX_WTHRESH,
  78         },
  79         .rx_free_thresh = 32,
  80 };
  81
  82 static struct rte_eth_txconf tx_conf = {
  83         .tx_thresh = {
  84                 .pthresh = TX_PTHRESH,
  85                 .hthresh = TX_HTHRESH,
  86                 .wthresh = TX_WTHRESH,
  87         },
  88         .tx_free_thresh = 32, /* Use PMD default values */
  89         .tx_rs_thresh = 32, /* Use PMD default values */
  90 };
  91
  92 enum {
  93         LCORE_INVALID = 0,
  94         LCORE_AVAIL,
  95         LCORE_USED,
  96 };
  97
  98 struct lcore_conf {
  99         uint8_t status;
 100         uint8_t socketid;
 101         uint16_t nb_ports;
 102         uint16_t portlist[RTE_MAX_ETHPORTS];
 103 } __rte_cache_aligned;
 104
 105 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 106
 107 static uint64_t link_mbps;
 108
 109 enum {
 110         SC_CONTINUOUS = 0,
 111         SC_BURST_POLL_FIRST,
 112         SC_BURST_XMIT_FIRST,
 113 };
 114
 115 static uint32_t sc_flag;
 116
 117 /* Check the link status of all ports in up to 3s, and print them finally */
 118 static void
 119 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 120 {
 121 #define CHECK_INTERVAL 100 /* 100ms */
 122 #define MAX_CHECK_TIME 30 /* 3s (30 * 100ms) in total */
 123         uint16_t portid;
 124         uint8_t count, all_ports_up, print_flag = 0;
 125         struct rte_eth_link link;
 126         int ret;
 127         char link_status[RTE_ETH_LINK_MAX_STR_LEN];
 128
 129         printf("Checking link statuses...\n");
 130         fflush(stdout);
 131         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 132                 all_ports_up = 1;
 133                 for (portid = 0; portid < port_num; portid++) {
 134                         if ((port_mask & (1 << portid)) == 0)
 135                                 continue;
 136                         memset(&link, 0, sizeof(link));
 137                         ret = rte_eth_link_get_nowait(portid, &link);
 138                         if (ret < 0) {
 139                                 all_ports_up = 0;
 140                                 if (print_flag == 1)
 141                                         printf("Port %u link get failed: %s\n",
 142                                                 portid, rte_strerror(-ret));
 143                                 continue;
 144                         }
 145
 146                         /* print link status if flag set */
 147                         if (print_flag == 1) {
 148                                 if (link.link_status && link_mbps == 0)
 149                                         link_mbps = link.link_speed;
 150
 151                                 rte_eth_link_to_str(link_status,
 152                                         sizeof(link_status), &link);
 153                                 printf("Port %d %s\n", portid, link_status);
 154                                 continue;
 155                         }
 156                         /* clear all_ports_up flag if any link down */
 157                         if (link.link_status == RTE_ETH_LINK_DOWN) {
 158                                 all_ports_up = 0;
 159                                 break;
 160                         }
 161                 }
 162                 /* after finally printing all link status, get out */
 163                 if (print_flag == 1)
 164                         break;
 165
 166                 if (all_ports_up == 0) {
 167                         fflush(stdout);
 168                         rte_delay_ms(CHECK_INTERVAL);
 169                 }
 170
 171                 /* set the print_flag if all ports up or timeout */
 172                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1))
 173                         print_flag = 1;
 174         }
 175 }
 176
 177 static void
 178 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 179 {
 180         char buf[RTE_ETHER_ADDR_FMT_SIZE];
 181         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
 182         printf("%s%s", name, buf);
 183 }
 184
 185 static int
 186 init_traffic(struct rte_mempool *mp,
 187              struct rte_mbuf **pkts_burst, uint32_t burst_size)
 188 {
 189         struct rte_ether_hdr pkt_eth_hdr;
 190         struct rte_ipv4_hdr pkt_ipv4_hdr;
 191         struct rte_udp_hdr pkt_udp_hdr;
 192         uint32_t pktlen;
 193         static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF };
 194         static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA };
 195
 196
 197         initialize_eth_header(&pkt_eth_hdr,
 198                 (struct rte_ether_addr *)src_mac,
 199                 (struct rte_ether_addr *)dst_mac, RTE_ETHER_TYPE_IPV4, 0, 0);
 200
 201         pktlen = initialize_ipv4_header(&pkt_ipv4_hdr,
 202                                         IPV4_ADDR(10, 0, 0, 1),
 203                                         IPV4_ADDR(10, 0, 0, 2), 26);
 204         printf("IPv4 pktlen %u\n", pktlen);
 205
 206         pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18);
 207
 208         printf("UDP pktlen %u\n", pktlen);
 209
 210         return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr,
 211                                      0, &pkt_ipv4_hdr, 1,
 212                                      &pkt_udp_hdr, burst_size,
 213                                      PACKET_BURST_GEN_PKT_LEN, 1);
 214 }
 215
 216 static int
 217 init_lcores(void)
 218 {
 219         unsigned lcore_id;
 220
 221         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 222                 lcore_conf[lcore_id].socketid =
 223                         rte_lcore_to_socket_id(lcore_id);
 224                 if (rte_lcore_is_enabled(lcore_id) == 0) {
 225                         lcore_conf[lcore_id].status = LCORE_INVALID;
 226                         continue;
 227                 } else
 228                         lcore_conf[lcore_id].status = LCORE_AVAIL;
 229         }
 230         return 0;
 231 }
 232
 233 static int
 234 init_mbufpool(unsigned nb_mbuf)
 235 {
 236         int socketid;
 237         unsigned lcore_id;
 238         char s[64];
 239
 240         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 241                 if (rte_lcore_is_enabled(lcore_id) == 0)
 242                         continue;
 243
 244                 socketid = rte_lcore_to_socket_id(lcore_id);
 245                 if (socketid >= NB_SOCKETS) {
 246                         rte_exit(EXIT_FAILURE,
 247                                 "Socket %d of lcore %u is out of range %d\n",
 248                                 socketid, lcore_id, NB_SOCKETS);
 249                 }
 250                 if (mbufpool[socketid] == NULL) {
 251                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 252                         mbufpool[socketid] =
 253                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 254                                         MEMPOOL_CACHE_SIZE, 0,
 255                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 256                         if (mbufpool[socketid] == NULL)
 257                                 rte_exit(EXIT_FAILURE,
 258                                         "Cannot init mbuf pool on socket %d\n",
 259                                         socketid);
 260                         else
 261                                 printf("Allocated mbuf pool on socket %d\n",
 262                                         socketid);
 263                 }
 264         }
 265         return 0;
 266 }
 267
 268 static uint16_t
 269 alloc_lcore(uint16_t socketid)
 270 {
 271         unsigned lcore_id;
 272
 273         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 274                 if (LCORE_AVAIL != lcore_conf[lcore_id].status ||
 275                     lcore_conf[lcore_id].socketid != socketid ||
 276                     lcore_id == rte_get_main_lcore())
 277                         continue;
 278                 lcore_conf[lcore_id].status = LCORE_USED;
 279                 lcore_conf[lcore_id].nb_ports = 0;
 280                 return lcore_id;
 281         }
 282
 283         return (uint16_t)-1;
 284 }
 285
 286 static volatile uint64_t stop;
 287 static uint64_t count;
 288 static uint64_t drop;
 289 static uint64_t idle;
 290
 291 static void
 292 reset_count(void)
 293 {
 294         count = 0;
 295         drop = 0;
 296         idle = 0;
 297 }
 298
 299 #ifndef RTE_EXEC_ENV_WINDOWS
 300 static void
 301 stats_display(uint16_t port_id)
 302 {
 303         struct rte_eth_stats stats;
 304         rte_eth_stats_get(port_id, &stats);
 305
 306         printf("  RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes:  "
 307                "%-"PRIu64"\n",
 308                stats.ipackets, stats.imissed, stats.ibytes);
 309         printf("  RX-errors: %-10"PRIu64" RX-nombuf:  %-10"PRIu64"\n",
 310                stats.ierrors, stats.rx_nombuf);
 311         printf("  TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes:  "
 312                "%-"PRIu64"\n",
 313                stats.opackets, stats.oerrors, stats.obytes);
 314 }
 315
 316 static void
 317 signal_handler(int signum)
 318 {
 319         /*  USR1 signal, stop testing */
 320         if (signum == SIGUSR1) {
 321                 printf("Force Stop!\n");
 322                 stop = 1;
 323         }
 324
 325         /*  USR2 signal, print stats */
 326         if (signum == SIGUSR2)
 327                 stats_display(0);
 328 }
 329 #endif
 330
 331 struct rte_mbuf **tx_burst;
 332
 333 uint64_t (*do_measure)(struct lcore_conf *conf,
 334                        struct rte_mbuf *pkts_burst[],
 335                        uint64_t total_pkts);
 336
 337 static uint64_t
 338 measure_rxtx(struct lcore_conf *conf,
 339              struct rte_mbuf *pkts_burst[],
 340              uint64_t total_pkts)
 341 {
 342         unsigned i, portid, nb_rx, nb_tx;
 343         uint64_t prev_tsc, cur_tsc;
 344
 345         prev_tsc = rte_rdtsc();
 346
 347         while (likely(!stop)) {
 348                 for (i = 0; i < conf->nb_ports; i++) {
 349                         portid = conf->portlist[i];
 350                         nb_rx = rte_eth_rx_burst(portid, 0,
 351                                                  pkts_burst, MAX_PKT_BURST);
 352                         if (unlikely(nb_rx == 0)) {
 353                                 idle++;
 354                                 continue;
 355                         }
 356
 357                         count += nb_rx;
 358                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 359                         if (unlikely(nb_tx < nb_rx)) {
 360                                 drop += (nb_rx - nb_tx);
 361                                 do {
 362                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 363                                 } while (++nb_tx < nb_rx);
 364                         }
 365                 }
 366                 if (unlikely(count >= total_pkts))
 367                         break;
 368         }
 369
 370         cur_tsc = rte_rdtsc();
 371
 372         return cur_tsc - prev_tsc;
 373 }
 374
 375 static uint64_t
 376 measure_rxonly(struct lcore_conf *conf,
 377                struct rte_mbuf *pkts_burst[],
 378                uint64_t total_pkts)
 379 {
 380         unsigned i, portid, nb_rx, nb_tx;
 381         uint64_t diff_tsc, cur_tsc;
 382
 383         diff_tsc = 0;
 384         while (likely(!stop)) {
 385                 for (i = 0; i < conf->nb_ports; i++) {
 386                         portid = conf->portlist[i];
 387
 388                         cur_tsc = rte_rdtsc();
 389                         nb_rx = rte_eth_rx_burst(portid, 0,
 390                                                  pkts_burst, MAX_PKT_BURST);
 391                         if (unlikely(nb_rx == 0)) {
 392                                 idle++;
 393                                 continue;
 394                         }
 395                         diff_tsc += rte_rdtsc() - cur_tsc;
 396
 397                         count += nb_rx;
 398                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 399                         if (unlikely(nb_tx < nb_rx)) {
 400                                 drop += (nb_rx - nb_tx);
 401                                 do {
 402                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 403                                 } while (++nb_tx < nb_rx);
 404                         }
 405                 }
 406                 if (unlikely(count >= total_pkts))
 407                         break;
 408         }
 409
 410         return diff_tsc;
 411 }
 412
 413 static uint64_t
 414 measure_txonly(struct lcore_conf *conf,
 415                struct rte_mbuf *pkts_burst[],
 416                uint64_t total_pkts)
 417 {
 418         unsigned i, portid, nb_rx, nb_tx;
 419         uint64_t diff_tsc, cur_tsc;
 420
 421         printf("do tx measure\n");
 422         diff_tsc = 0;
 423         while (likely(!stop)) {
 424                 for (i = 0; i < conf->nb_ports; i++) {
 425                         portid = conf->portlist[i];
 426                         nb_rx = rte_eth_rx_burst(portid, 0,
 427                                                  pkts_burst, MAX_PKT_BURST);
 428                         if (unlikely(nb_rx == 0)) {
 429                                 idle++;
 430                                 continue;
 431                         }
 432
 433                         count += nb_rx;
 434
 435                         cur_tsc = rte_rdtsc();
 436                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 437                         if (unlikely(nb_tx < nb_rx)) {
 438                                 drop += (nb_rx - nb_tx);
 439                                 do {
 440                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 441                                 } while (++nb_tx < nb_rx);
 442                         }
 443                         diff_tsc += rte_rdtsc() - cur_tsc;
 444                 }
 445                 if (unlikely(count >= total_pkts))
 446                         break;
 447         }
 448
 449         return diff_tsc;
 450 }
 451
 452 /* main processing loop */
 453 static int
 454 main_loop(__rte_unused void *args)
 455 {
 456 #define PACKET_SIZE 64
 457 #define FRAME_GAP 12
 458 #define MAC_PREAMBLE 8
 459 #define MAX_RETRY_COUNT 5
 460         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 461         unsigned lcore_id;
 462         unsigned i, portid, nb_rx = 0, nb_tx = 0;
 463         struct lcore_conf *conf;
 464         int pkt_per_port;
 465         uint64_t diff_tsc;
 466         uint64_t packets_per_second, total_packets;
 467         int retry_cnt = 0;
 468         int free_pkt = 0;
 469
 470         lcore_id = rte_lcore_id();
 471         conf = &lcore_conf[lcore_id];
 472         if (conf->status != LCORE_USED)
 473                 return 0;
 474
 475         pkt_per_port = MAX_TRAFFIC_BURST;
 476
 477         int idx = 0;
 478         for (i = 0; i < conf->nb_ports; i++) {
 479                 int num = pkt_per_port;
 480                 portid = conf->portlist[i];
 481                 printf("inject %d packet to port %d\n", num, portid);
 482                 while (num) {
 483                         nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 484                         nb_tx = rte_eth_tx_burst(portid, 0,
 485                                                 &tx_burst[idx], nb_tx);
 486                         if (nb_tx == 0)
 487                                 retry_cnt++;
 488                         num -= nb_tx;
 489                         idx += nb_tx;
 490                         if (retry_cnt == MAX_RETRY_COUNT) {
 491                                 retry_cnt = 0;
 492                                 break;
 493                         }
 494                 }
 495         }
 496         for (free_pkt = idx; free_pkt < (MAX_TRAFFIC_BURST * conf->nb_ports);
 497                         free_pkt++)
 498                 rte_pktmbuf_free(tx_burst[free_pkt]);
 499         printf("Total packets inject to prime ports = %u\n", idx);
 500
 501         packets_per_second = (link_mbps * 1000 * 1000) /
 502                 ((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT);
 503         printf("Each port will do %"PRIu64" packets per second\n",
 504                packets_per_second);
 505
 506         total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second;
 507         printf("Test will stop after at least %"PRIu64" packets received\n",
 508                 + total_packets);
 509
 510         diff_tsc = do_measure(conf, pkts_burst, total_packets);
 511
 512         for (i = 0; i < conf->nb_ports; i++) {
 513                 portid = conf->portlist[i];
 514                 int nb_free = 0;
 515                 uint64_t timeout = 10000;
 516                 do { /* dry out */
 517                         nb_rx = rte_eth_rx_burst(portid, 0,
 518                                                  pkts_burst, MAX_PKT_BURST);
 519                         nb_tx = 0;
 520                         while (nb_tx < nb_rx)
 521                                 rte_pktmbuf_free(pkts_burst[nb_tx++]);
 522                         nb_free += nb_rx;
 523
 524                         if (unlikely(nb_rx == 0))
 525                                 timeout--;
 526                 } while (nb_free != pkt_per_port && timeout != 0);
 527                 printf("free %d (expected %d) mbuf left in port %u\n", nb_free,
 528                        pkt_per_port, portid);
 529         }
 530
 531         if (count == 0)
 532                 return -1;
 533
 534         printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n",
 535                count, drop, idle);
 536         printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count);
 537
 538         return 0;
 539 }
 540
 541 static uint64_t start;
 542
 543 static inline int
 544 poll_burst(void *args)
 545 {
 546 #define MAX_IDLE           (10000)
 547         unsigned lcore_id;
 548         struct rte_mbuf **pkts_burst;
 549         uint64_t diff_tsc, cur_tsc;
 550         uint16_t next[RTE_MAX_ETHPORTS];
 551         struct lcore_conf *conf;
 552         uint32_t pkt_per_port = *((uint32_t *)args);
 553         unsigned i, portid, nb_rx = 0;
 554         uint64_t total;
 555         uint64_t timeout = MAX_IDLE;
 556         int num[RTE_MAX_ETHPORTS];
 557
 558         lcore_id = rte_lcore_id();
 559         conf = &lcore_conf[lcore_id];
 560         if (conf->status != LCORE_USED)
 561                 return 0;
 562
 563         total = pkt_per_port * conf->nb_ports;
 564         printf("start to receive total expect %"PRIu64"\n", total);
 565
 566         pkts_burst = (struct rte_mbuf **)
 567                 rte_calloc_socket("poll_burst",
 568                                   total, sizeof(void *),
 569                                   RTE_CACHE_LINE_SIZE, conf->socketid);
 570         if (!pkts_burst)
 571                 return -1;
 572
 573         for (i = 0; i < conf->nb_ports; i++) {
 574                 portid = conf->portlist[i];
 575                 next[portid] = i * pkt_per_port;
 576                 num[portid] = pkt_per_port;
 577         }
 578
 579         rte_wait_until_equal_64(&start, 1, __ATOMIC_ACQUIRE);
 580
 581         cur_tsc = rte_rdtsc();
 582         while (total) {
 583                 for (i = 0; i < conf->nb_ports; i++) {
 584                         portid = conf->portlist[i];
 585                         nb_rx = rte_eth_rx_burst(portid, 0,
 586                                         &pkts_burst[next[portid]],
 587                                         RTE_MIN(MAX_PKT_BURST, num[portid]));
 588                         if (unlikely(nb_rx == 0)) {
 589                                 timeout--;
 590                                 if (unlikely(timeout == 0))
 591                                         goto timeout;
 592                                 continue;
 593                         }
 594                         next[portid] += nb_rx;
 595                         num[portid] -= nb_rx;
 596                         total -= nb_rx;
 597                 }
 598         }
 599 timeout:
 600         diff_tsc = rte_rdtsc() - cur_tsc;
 601
 602         printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n",
 603                total, MAX_IDLE - timeout);
 604         /* clean up */
 605         total = pkt_per_port * conf->nb_ports - total;
 606         for (i = 0; i < total; i++)
 607                 rte_pktmbuf_free(pkts_burst[i]);
 608
 609         rte_free(pkts_burst);
 610
 611         if (total > 0)
 612                 return diff_tsc / total;
 613         else
 614                 return -1;
 615 }
 616
 617 static int
 618 exec_burst(uint32_t flags, int lcore)
 619 {
 620         unsigned int portid, nb_tx = 0;
 621         struct lcore_conf *conf;
 622         uint32_t pkt_per_port;
 623         int num, i, idx = 0;
 624         int diff_tsc;
 625
 626         conf = &lcore_conf[lcore];
 627
 628         pkt_per_port = MAX_TRAFFIC_BURST;
 629         num = pkt_per_port * conf->nb_ports;
 630
 631         /* only when polling first */
 632         if (flags == SC_BURST_POLL_FIRST)
 633                 __atomic_store_n(&start, 1, __ATOMIC_RELAXED);
 634         else
 635                 __atomic_store_n(&start, 0, __ATOMIC_RELAXED);
 636
 637         /* start polling thread
 638          * if in POLL_FIRST mode, poll once launched;
 639          * otherwise, not actually poll yet
 640          */
 641         rte_eal_remote_launch(poll_burst,
 642                               (void *)&pkt_per_port, lcore);
 643
 644         /* start xmit */
 645         i = 0;
 646         while (num) {
 647                 nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 648                 portid = conf->portlist[i];
 649                 nb_tx = rte_eth_tx_burst(portid, 0, &tx_burst[idx], nb_tx);
 650                 idx += nb_tx;
 651                 num -= nb_tx;
 652                 i = (i >= conf->nb_ports - 1) ? 0 : (i + 1);
 653         }
 654
 655         rte_delay_us(5 * US_PER_S);
 656
 657         /* only when polling second  */
 658         if (flags == SC_BURST_XMIT_FIRST)
 659                 __atomic_store_n(&start, 1, __ATOMIC_RELEASE);
 660
 661         /* wait for polling finished */
 662         diff_tsc = rte_eal_wait_lcore(lcore);
 663         if (diff_tsc < 0) {
 664                 printf("exec_burst: Failed to measure cycles per packet\n");
 665                 return -1;
 666         }
 667
 668         printf("Result: %d cycles per packet\n", diff_tsc);
 669
 670         return 0;
 671 }
 672
 673 static int
 674 test_pmd_perf(void)
 675 {
 676         uint16_t nb_ports, num, nb_lcores, worker_id = (uint16_t)-1;
 677         uint16_t nb_rxd = MAX_TRAFFIC_BURST;
 678         uint16_t nb_txd = MAX_TRAFFIC_BURST;
 679         uint16_t portid;
 680         uint16_t nb_rx_queue = 1, nb_tx_queue = 1;
 681         int socketid = -1;
 682         int ret;
 683
 684         printf("Start PMD RXTX cycles cost test.\n");
 685
 686 #ifndef RTE_EXEC_ENV_WINDOWS
 687         signal(SIGUSR1, signal_handler);
 688         signal(SIGUSR2, signal_handler);
 689 #endif
 690
 691         nb_ports = rte_eth_dev_count_avail();
 692         if (nb_ports < NB_ETHPORTS_USED) {
 693                 printf("At least %u port(s) used for perf. test\n",
 694                        NB_ETHPORTS_USED);
 695                 return -1;
 696         }
 697
 698         nb_lcores = rte_lcore_count();
 699
 700         memset(lcore_conf, 0, sizeof(lcore_conf));
 701         init_lcores();
 702
 703         init_mbufpool(NB_MBUF);
 704
 705         if (sc_flag == SC_CONTINUOUS) {
 706                 nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 707                 nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 708         }
 709         printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd);
 710
 711         reset_count();
 712         num = 0;
 713         RTE_ETH_FOREACH_DEV(portid) {
 714                 if (socketid == -1) {
 715                         socketid = rte_eth_dev_socket_id(portid);
 716                         worker_id = alloc_lcore(socketid);
 717                         if (worker_id == (uint16_t)-1) {
 718                                 printf("No avail lcore to run test\n");
 719                                 return -1;
 720                         }
 721                         printf("Performance test runs on lcore %u socket %u\n",
 722                                worker_id, socketid);
 723                 }
 724
 725                 if (socketid != rte_eth_dev_socket_id(portid)) {
 726                         printf("Skip port %d\n", portid);
 727                         continue;
 728                 }
 729
 730                 /* port configure */
 731                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 732                                             nb_tx_queue, &port_conf);
 733                 if (ret < 0)
 734                         rte_exit(EXIT_FAILURE,
 735                                 "Cannot configure device: err=%d, port=%d\n",
 736                                  ret, portid);
 737
 738                 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 739                 if (ret < 0)
 740                         rte_exit(EXIT_FAILURE,
 741                                 "Cannot get mac address: err=%d, port=%d\n",
 742                                  ret, portid);
 743
 744                 printf("Port %u ", portid);
 745                 print_ethaddr("Address:", &ports_eth_addr[portid]);
 746                 printf("\n");
 747
 748                 /* tx queue setup */
 749                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 750                                              socketid, &tx_conf);
 751                 if (ret < 0)
 752                         rte_exit(EXIT_FAILURE,
 753                                 "rte_eth_tx_queue_setup: err=%d, "
 754                                 "port=%d\n", ret, portid);
 755
 756                 /* rx queue steup */
 757                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 758                                                 socketid, &rx_conf,
 759                                                 mbufpool[socketid]);
 760                 if (ret < 0)
 761                         rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
 762                                  "port=%d\n", ret, portid);
 763
 764                 /* Start device */
 765                 stop = 0;
 766                 ret = rte_eth_dev_start(portid);
 767                 if (ret < 0)
 768                         rte_exit(EXIT_FAILURE,
 769                                 "rte_eth_dev_start: err=%d, port=%d\n",
 770                                 ret, portid);
 771
 772                 /* always enable promiscuous */
 773                 ret = rte_eth_promiscuous_enable(portid);
 774                 if (ret != 0)
 775                         rte_exit(EXIT_FAILURE,
 776                                  "rte_eth_promiscuous_enable: err=%s, port=%d\n",
 777                                  rte_strerror(-ret), portid);
 778
 779                 lcore_conf[worker_id].portlist[num++] = portid;
 780                 lcore_conf[worker_id].nb_ports++;
 781         }
 782         check_all_ports_link_status(nb_ports, RTE_PORT_ALL);
 783
 784         if (tx_burst == NULL) {
 785                 tx_burst = (struct rte_mbuf **)
 786                         rte_calloc_socket("tx_buff",
 787                                           MAX_TRAFFIC_BURST * nb_ports,
 788                                           sizeof(void *),
 789                                           RTE_CACHE_LINE_SIZE, socketid);
 790                 if (!tx_burst)
 791                         return -1;
 792         }
 793
 794         init_traffic(mbufpool[socketid],
 795                      tx_burst, MAX_TRAFFIC_BURST * nb_ports);
 796
 797         printf("Generate %d packets @socket %d\n",
 798                MAX_TRAFFIC_BURST * nb_ports, socketid);
 799
 800         if (sc_flag == SC_CONTINUOUS) {
 801                 /* do both rxtx by default */
 802                 if (NULL == do_measure)
 803                         do_measure = measure_rxtx;
 804
 805                 rte_eal_remote_launch(main_loop, NULL, worker_id);
 806
 807                 if (rte_eal_wait_lcore(worker_id) < 0)
 808                         return -1;
 809         } else if (sc_flag == SC_BURST_POLL_FIRST ||
 810                    sc_flag == SC_BURST_XMIT_FIRST)
 811                 if (exec_burst(sc_flag, worker_id) < 0)
 812                         return -1;
 813
 814         /* port tear down */
 815         RTE_ETH_FOREACH_DEV(portid) {
 816                 if (socketid != rte_eth_dev_socket_id(portid))
 817                         continue;
 818
 819                 ret = rte_eth_dev_stop(portid);
 820                 if (ret != 0)
 821                         printf("rte_eth_dev_stop: err=%s, port=%u\n",
 822                                rte_strerror(-ret), portid);
 823         }
 824
 825         return 0;
 826 }
 827
 828 int
 829 test_set_rxtx_conf(cmdline_fixed_string_t mode)
 830 {
 831         printf("mode switch to %s\n", mode);
 832
 833         if (!strcmp(mode, "vector")) {
 834                 /* vector rx, tx */
 835                 tx_conf.tx_rs_thresh = 32;
 836                 tx_conf.tx_free_thresh = 32;
 837                 return 0;
 838         } else if (!strcmp(mode, "scalar")) {
 839                 /* bulk alloc rx, full-featured tx */
 840                 tx_conf.tx_rs_thresh = 32;
 841                 tx_conf.tx_free_thresh = 32;
 842                 port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_CHECKSUM;
 843                 return 0;
 844         } else if (!strcmp(mode, "hybrid")) {
 845                 /* bulk alloc rx, vector tx
 846                  * when vec macro not define,
 847                  * using the same rx/tx as scalar
 848                  */
 849                 tx_conf.tx_rs_thresh = 32;
 850                 tx_conf.tx_free_thresh = 32;
 851                 port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_CHECKSUM;
 852                 return 0;
 853         } else if (!strcmp(mode, "full")) {
 854                 /* full feature rx,tx pair */
 855                 tx_conf.tx_rs_thresh = 32;
 856                 tx_conf.tx_free_thresh = 32;
 857                 port_conf.rxmode.offloads |= RTE_ETH_RX_OFFLOAD_SCATTER;
 858                 return 0;
 859         }
 860
 861         return -1;
 862 }
 863
 864 int
 865 test_set_rxtx_anchor(cmdline_fixed_string_t type)
 866 {
 867         printf("type switch to %s\n", type);
 868
 869         if (!strcmp(type, "rxtx")) {
 870                 do_measure = measure_rxtx;
 871                 return 0;
 872         } else if (!strcmp(type, "rxonly")) {
 873                 do_measure = measure_rxonly;
 874                 return 0;
 875         } else if (!strcmp(type, "txonly")) {
 876                 do_measure = measure_txonly;
 877                 return 0;
 878         }
 879
 880         return -1;
 881 }
 882
 883 int
 884 test_set_rxtx_sc(cmdline_fixed_string_t type)
 885 {
 886         printf("stream control switch to %s\n", type);
 887
 888         if (!strcmp(type, "continuous")) {
 889                 sc_flag = SC_CONTINUOUS;
 890                 return 0;
 891         } else if (!strcmp(type, "poll_before_xmit")) {
 892                 sc_flag = SC_BURST_POLL_FIRST;
 893                 return 0;
 894         } else if (!strcmp(type, "poll_after_xmit")) {
 895                 sc_flag = SC_BURST_XMIT_FIRST;
 896                 return 0;
 897         }
 898
 899         return -1;
 900 }
 901
 902 REGISTER_TEST_COMMAND(pmd_perf_autotest, test_pmd_perf);