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_atomic.h>
  14 #include <rte_malloc.h>
  15 #include "packet_burst_generator.h"
  16 #include "test.h"
  17
  18 #define NB_ETHPORTS_USED                (1)
  19 #define NB_SOCKETS                      (2)
  20 #define MEMPOOL_CACHE_SIZE 250
  21 #define MAX_PKT_BURST                   (32)
  22 #define RTE_TEST_RX_DESC_DEFAULT        (1024)
  23 #define RTE_TEST_TX_DESC_DEFAULT        (1024)
  24 #define RTE_PORT_ALL            (~(uint16_t)0x0)
  25
  26 /* how long test would take at full line rate */
  27 #define RTE_TEST_DURATION                (2)
  28
  29 /*
  30  * RX and TX Prefetch, Host, and Write-back threshold values should be
  31  * carefully set for optimal performance. Consult the network
  32  * controller's datasheet and supporting DPDK documentation for guidance
  33  * on how these parameters should be set.
  34  */
  35 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */
  36 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */
  37 #define RX_WTHRESH 0 /**< Default values of RX write-back threshold reg. */
  38
  39 /*
  40  * These default values are optimized for use with the Intel(R) 82599 10 GbE
  41  * Controller and the DPDK ixgbe PMD. Consider using other values for other
  42  * network controllers and/or network drivers.
  43  */
  44 #define TX_PTHRESH 32 /**< Default values of TX prefetch threshold reg. */
  45 #define TX_HTHRESH 0  /**< Default values of TX host threshold reg. */
  46 #define TX_WTHRESH 0  /**< Default values of TX write-back threshold reg. */
  47
  48 #define MAX_TRAFFIC_BURST              2048
  49
  50 #define NB_MBUF RTE_MAX(                                                \
  51                 (unsigned)(nb_ports*nb_rx_queue*nb_rxd +                \
  52                            nb_ports*nb_lcores*MAX_PKT_BURST +           \
  53                            nb_ports*nb_tx_queue*nb_txd +                \
  54                            nb_lcores*MEMPOOL_CACHE_SIZE +               \
  55                            nb_ports*MAX_TRAFFIC_BURST),                 \
  56                         (unsigned)8192)
  57
  58
  59 static struct rte_mempool *mbufpool[NB_SOCKETS];
  60 /* ethernet addresses of ports */
  61 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
  62
  63 static struct rte_eth_conf port_conf = {
  64         .rxmode = {
  65                 .mq_mode = ETH_MQ_RX_NONE,
  66                 .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
  67                 .split_hdr_size = 0,
  68         },
  69         .txmode = {
  70                 .mq_mode = ETH_MQ_TX_NONE,
  71         },
  72         .lpbk_mode = 1,  /* enable loopback */
  73 };
  74
  75 static struct rte_eth_rxconf rx_conf = {
  76         .rx_thresh = {
  77                 .pthresh = RX_PTHRESH,
  78                 .hthresh = RX_HTHRESH,
  79                 .wthresh = RX_WTHRESH,
  80         },
  81         .rx_free_thresh = 32,
  82 };
  83
  84 static struct rte_eth_txconf tx_conf = {
  85         .tx_thresh = {
  86                 .pthresh = TX_PTHRESH,
  87                 .hthresh = TX_HTHRESH,
  88                 .wthresh = TX_WTHRESH,
  89         },
  90         .tx_free_thresh = 32, /* Use PMD default values */
  91         .tx_rs_thresh = 32, /* Use PMD default values */
  92 };
  93
  94 enum {
  95         LCORE_INVALID = 0,
  96         LCORE_AVAIL,
  97         LCORE_USED,
  98 };
  99
 100 struct lcore_conf {
 101         uint8_t status;
 102         uint8_t socketid;
 103         uint16_t nb_ports;
 104         uint16_t portlist[RTE_MAX_ETHPORTS];
 105 } __rte_cache_aligned;
 106
 107 struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 108
 109 static uint64_t link_mbps;
 110
 111 enum {
 112         SC_CONTINUOUS = 0,
 113         SC_BURST_POLL_FIRST,
 114         SC_BURST_XMIT_FIRST,
 115 };
 116
 117 static uint32_t sc_flag;
 118
 119 /* Check the link status of all ports in up to 3s, and print them finally */
 120 static void
 121 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
 122 {
 123 #define CHECK_INTERVAL 100 /* 100ms */
 124 #define MAX_CHECK_TIME 30 /* 3s (30 * 100ms) in total */
 125         uint16_t portid;
 126         uint8_t count, all_ports_up, print_flag = 0;
 127         struct rte_eth_link link;
 128         int ret;
 129         char link_status[RTE_ETH_LINK_MAX_STR_LEN];
 130
 131         printf("Checking link statuses...\n");
 132         fflush(stdout);
 133         for (count = 0; count <= MAX_CHECK_TIME; count++) {
 134                 all_ports_up = 1;
 135                 for (portid = 0; portid < port_num; portid++) {
 136                         if ((port_mask & (1 << portid)) == 0)
 137                                 continue;
 138                         memset(&link, 0, sizeof(link));
 139                         ret = rte_eth_link_get_nowait(portid, &link);
 140                         if (ret < 0) {
 141                                 all_ports_up = 0;
 142                                 if (print_flag == 1)
 143                                         printf("Port %u link get failed: %s\n",
 144                                                 portid, rte_strerror(-ret));
 145                                 continue;
 146                         }
 147
 148                         /* print link status if flag set */
 149                         if (print_flag == 1) {
 150                                 if (link.link_status && link_mbps == 0)
 151                                         link_mbps = link.link_speed;
 152
 153                                 rte_eth_link_to_str(link_status,
 154                                         sizeof(link_status), &link);
 155                                 printf("Port %d %s\n", portid, link_status);
 156                                 continue;
 157                         }
 158                         /* clear all_ports_up flag if any link down */
 159                         if (link.link_status == ETH_LINK_DOWN) {
 160                                 all_ports_up = 0;
 161                                 break;
 162                         }
 163                 }
 164                 /* after finally printing all link status, get out */
 165                 if (print_flag == 1)
 166                         break;
 167
 168                 if (all_ports_up == 0) {
 169                         fflush(stdout);
 170                         rte_delay_ms(CHECK_INTERVAL);
 171                 }
 172
 173                 /* set the print_flag if all ports up or timeout */
 174                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1))
 175                         print_flag = 1;
 176         }
 177 }
 178
 179 static void
 180 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 181 {
 182         char buf[RTE_ETHER_ADDR_FMT_SIZE];
 183         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
 184         printf("%s%s", name, buf);
 185 }
 186
 187 static int
 188 init_traffic(struct rte_mempool *mp,
 189              struct rte_mbuf **pkts_burst, uint32_t burst_size)
 190 {
 191         struct rte_ether_hdr pkt_eth_hdr;
 192         struct rte_ipv4_hdr pkt_ipv4_hdr;
 193         struct rte_udp_hdr pkt_udp_hdr;
 194         uint32_t pktlen;
 195         static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF };
 196         static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA };
 197
 198
 199         initialize_eth_header(&pkt_eth_hdr,
 200                 (struct rte_ether_addr *)src_mac,
 201                 (struct rte_ether_addr *)dst_mac, RTE_ETHER_TYPE_IPV4, 0, 0);
 202
 203         pktlen = initialize_ipv4_header(&pkt_ipv4_hdr,
 204                                         IPV4_ADDR(10, 0, 0, 1),
 205                                         IPV4_ADDR(10, 0, 0, 2), 26);
 206         printf("IPv4 pktlen %u\n", pktlen);
 207
 208         pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18);
 209
 210         printf("UDP pktlen %u\n", pktlen);
 211
 212         return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr,
 213                                      0, &pkt_ipv4_hdr, 1,
 214                                      &pkt_udp_hdr, burst_size,
 215                                      PACKET_BURST_GEN_PKT_LEN, 1);
 216 }
 217
 218 static int
 219 init_lcores(void)
 220 {
 221         unsigned lcore_id;
 222
 223         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 224                 lcore_conf[lcore_id].socketid =
 225                         rte_lcore_to_socket_id(lcore_id);
 226                 if (rte_lcore_is_enabled(lcore_id) == 0) {
 227                         lcore_conf[lcore_id].status = LCORE_INVALID;
 228                         continue;
 229                 } else
 230                         lcore_conf[lcore_id].status = LCORE_AVAIL;
 231         }
 232         return 0;
 233 }
 234
 235 static int
 236 init_mbufpool(unsigned nb_mbuf)
 237 {
 238         int socketid;
 239         unsigned lcore_id;
 240         char s[64];
 241
 242         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 243                 if (rte_lcore_is_enabled(lcore_id) == 0)
 244                         continue;
 245
 246                 socketid = rte_lcore_to_socket_id(lcore_id);
 247                 if (socketid >= NB_SOCKETS) {
 248                         rte_exit(EXIT_FAILURE,
 249                                 "Socket %d of lcore %u is out of range %d\n",
 250                                 socketid, lcore_id, NB_SOCKETS);
 251                 }
 252                 if (mbufpool[socketid] == NULL) {
 253                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 254                         mbufpool[socketid] =
 255                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 256                                         MEMPOOL_CACHE_SIZE, 0,
 257                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 258                         if (mbufpool[socketid] == NULL)
 259                                 rte_exit(EXIT_FAILURE,
 260                                         "Cannot init mbuf pool on socket %d\n",
 261                                         socketid);
 262                         else
 263                                 printf("Allocated mbuf pool on socket %d\n",
 264                                         socketid);
 265                 }
 266         }
 267         return 0;
 268 }
 269
 270 static uint16_t
 271 alloc_lcore(uint16_t socketid)
 272 {
 273         unsigned lcore_id;
 274
 275         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 276                 if (LCORE_AVAIL != lcore_conf[lcore_id].status ||
 277                     lcore_conf[lcore_id].socketid != socketid ||
 278                     lcore_id == rte_get_main_lcore())
 279                         continue;
 280                 lcore_conf[lcore_id].status = LCORE_USED;
 281                 lcore_conf[lcore_id].nb_ports = 0;
 282                 return lcore_id;
 283         }
 284
 285         return (uint16_t)-1;
 286 }
 287
 288 static volatile uint64_t stop;
 289 static uint64_t count;
 290 static uint64_t drop;
 291 static uint64_t idle;
 292
 293 static void
 294 reset_count(void)
 295 {
 296         count = 0;
 297         drop = 0;
 298         idle = 0;
 299 }
 300
 301 static void
 302 stats_display(uint16_t port_id)
 303 {
 304         struct rte_eth_stats stats;
 305         rte_eth_stats_get(port_id, &stats);
 306
 307         printf("  RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes:  "
 308                "%-"PRIu64"\n",
 309                stats.ipackets, stats.imissed, stats.ibytes);
 310         printf("  RX-errors: %-10"PRIu64" RX-nombuf:  %-10"PRIu64"\n",
 311                stats.ierrors, stats.rx_nombuf);
 312         printf("  TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes:  "
 313                "%-"PRIu64"\n",
 314                stats.opackets, stats.oerrors, stats.obytes);
 315 }
 316
 317 static void
 318 signal_handler(int signum)
 319 {
 320         /*  USR1 signal, stop testing */
 321         if (signum == SIGUSR1) {
 322                 printf("Force Stop!\n");
 323                 stop = 1;
 324         }
 325
 326         /*  USR2 signal, print stats */
 327         if (signum == SIGUSR2)
 328                 stats_display(0);
 329 }
 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         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 460         unsigned lcore_id;
 461         unsigned i, portid, nb_rx = 0, nb_tx = 0;
 462         struct lcore_conf *conf;
 463         int pkt_per_port;
 464         uint64_t diff_tsc;
 465         uint64_t packets_per_second, total_packets;
 466
 467         lcore_id = rte_lcore_id();
 468         conf = &lcore_conf[lcore_id];
 469         if (conf->status != LCORE_USED)
 470                 return 0;
 471
 472         pkt_per_port = MAX_TRAFFIC_BURST;
 473
 474         int idx = 0;
 475         for (i = 0; i < conf->nb_ports; i++) {
 476                 int num = pkt_per_port;
 477                 portid = conf->portlist[i];
 478                 printf("inject %d packet to port %d\n", num, portid);
 479                 while (num) {
 480                         nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 481                         nb_tx = rte_eth_tx_burst(portid, 0,
 482                                                 &tx_burst[idx], nb_tx);
 483                         num -= nb_tx;
 484                         idx += nb_tx;
 485                 }
 486         }
 487         printf("Total packets inject to prime ports = %u\n", idx);
 488
 489         packets_per_second = (link_mbps * 1000 * 1000) /
 490                 ((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT);
 491         printf("Each port will do %"PRIu64" packets per second\n",
 492                packets_per_second);
 493
 494         total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second;
 495         printf("Test will stop after at least %"PRIu64" packets received\n",
 496                 + total_packets);
 497
 498         diff_tsc = do_measure(conf, pkts_burst, total_packets);
 499
 500         for (i = 0; i < conf->nb_ports; i++) {
 501                 portid = conf->portlist[i];
 502                 int nb_free = 0;
 503                 uint64_t timeout = 10000;
 504                 do { /* dry out */
 505                         nb_rx = rte_eth_rx_burst(portid, 0,
 506                                                  pkts_burst, MAX_PKT_BURST);
 507                         nb_tx = 0;
 508                         while (nb_tx < nb_rx)
 509                                 rte_pktmbuf_free(pkts_burst[nb_tx++]);
 510                         nb_free += nb_rx;
 511
 512                         if (unlikely(nb_rx == 0))
 513                                 timeout--;
 514                 } while (nb_free != pkt_per_port && timeout != 0);
 515                 printf("free %d (expected %d) mbuf left in port %u\n", nb_free,
 516                        pkt_per_port, portid);
 517         }
 518
 519         if (count == 0)
 520                 return -1;
 521
 522         printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n",
 523                count, drop, idle);
 524         printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count);
 525
 526         return 0;
 527 }
 528
 529 static rte_atomic64_t start;
 530
 531 static inline int
 532 poll_burst(void *args)
 533 {
 534 #define MAX_IDLE           (10000)
 535         unsigned lcore_id;
 536         struct rte_mbuf **pkts_burst;
 537         uint64_t diff_tsc, cur_tsc;
 538         uint16_t next[RTE_MAX_ETHPORTS];
 539         struct lcore_conf *conf;
 540         uint32_t pkt_per_port = *((uint32_t *)args);
 541         unsigned i, portid, nb_rx = 0;
 542         uint64_t total;
 543         uint64_t timeout = MAX_IDLE;
 544         int num[RTE_MAX_ETHPORTS];
 545
 546         lcore_id = rte_lcore_id();
 547         conf = &lcore_conf[lcore_id];
 548         if (conf->status != LCORE_USED)
 549                 return 0;
 550
 551         total = pkt_per_port * conf->nb_ports;
 552         printf("start to receive total expect %"PRIu64"\n", total);
 553
 554         pkts_burst = (struct rte_mbuf **)
 555                 rte_calloc_socket("poll_burst",
 556                                   total, sizeof(void *),
 557                                   RTE_CACHE_LINE_SIZE, conf->socketid);
 558         if (!pkts_burst)
 559                 return -1;
 560
 561         for (i = 0; i < conf->nb_ports; i++) {
 562                 portid = conf->portlist[i];
 563                 next[portid] = i * pkt_per_port;
 564                 num[portid] = pkt_per_port;
 565         }
 566
 567         while (!rte_atomic64_read(&start))
 568                 ;
 569
 570         cur_tsc = rte_rdtsc();
 571         while (total) {
 572                 for (i = 0; i < conf->nb_ports; i++) {
 573                         portid = conf->portlist[i];
 574                         nb_rx = rte_eth_rx_burst(portid, 0,
 575                                         &pkts_burst[next[portid]],
 576                                         RTE_MIN(MAX_PKT_BURST, num[portid]));
 577                         if (unlikely(nb_rx == 0)) {
 578                                 timeout--;
 579                                 if (unlikely(timeout == 0))
 580                                         goto timeout;
 581                                 continue;
 582                         }
 583                         next[portid] += nb_rx;
 584                         num[portid] -= nb_rx;
 585                         total -= nb_rx;
 586                 }
 587         }
 588 timeout:
 589         diff_tsc = rte_rdtsc() - cur_tsc;
 590
 591         printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n",
 592                total, MAX_IDLE - timeout);
 593         /* clean up */
 594         total = pkt_per_port * conf->nb_ports - total;
 595         for (i = 0; i < total; i++)
 596                 rte_pktmbuf_free(pkts_burst[i]);
 597
 598         rte_free(pkts_burst);
 599
 600         if (total > 0)
 601                 return diff_tsc / total;
 602         else
 603                 return -1;
 604 }
 605
 606 static int
 607 exec_burst(uint32_t flags, int lcore)
 608 {
 609         unsigned int portid, nb_tx = 0;
 610         struct lcore_conf *conf;
 611         uint32_t pkt_per_port;
 612         int num, i, idx = 0;
 613         int diff_tsc;
 614
 615         conf = &lcore_conf[lcore];
 616
 617         pkt_per_port = MAX_TRAFFIC_BURST;
 618         num = pkt_per_port * conf->nb_ports;
 619
 620         rte_atomic64_init(&start);
 621
 622         /* start polling thread, but not actually poll yet */
 623         rte_eal_remote_launch(poll_burst,
 624                               (void *)&pkt_per_port, lcore);
 625
 626         /* Only when polling first */
 627         if (flags == SC_BURST_POLL_FIRST)
 628                 rte_atomic64_set(&start, 1);
 629
 630         /* start xmit */
 631         i = 0;
 632         while (num) {
 633                 nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 634                 portid = conf->portlist[i];
 635                 nb_tx = rte_eth_tx_burst(portid, 0, &tx_burst[idx], nb_tx);
 636                 idx += nb_tx;
 637                 num -= nb_tx;
 638                 i = (i >= conf->nb_ports - 1) ? 0 : (i + 1);
 639         }
 640
 641         sleep(5);
 642
 643         /* only when polling second  */
 644         if (flags == SC_BURST_XMIT_FIRST)
 645                 rte_atomic64_set(&start, 1);
 646
 647         /* wait for polling finished */
 648         diff_tsc = rte_eal_wait_lcore(lcore);
 649         if (diff_tsc < 0) {
 650                 printf("exec_burst: Failed to measure cycles per packet\n");
 651                 return -1;
 652         }
 653
 654         printf("Result: %d cycles per packet\n", diff_tsc);
 655
 656         return 0;
 657 }
 658
 659 static int
 660 test_pmd_perf(void)
 661 {
 662         uint16_t nb_ports, num, nb_lcores, worker_id = (uint16_t)-1;
 663         uint16_t nb_rxd = MAX_TRAFFIC_BURST;
 664         uint16_t nb_txd = MAX_TRAFFIC_BURST;
 665         uint16_t portid;
 666         uint16_t nb_rx_queue = 1, nb_tx_queue = 1;
 667         int socketid = -1;
 668         int ret;
 669
 670         printf("Start PMD RXTX cycles cost test.\n");
 671
 672         signal(SIGUSR1, signal_handler);
 673         signal(SIGUSR2, signal_handler);
 674
 675         nb_ports = rte_eth_dev_count_avail();
 676         if (nb_ports < NB_ETHPORTS_USED) {
 677                 printf("At least %u port(s) used for perf. test\n",
 678                        NB_ETHPORTS_USED);
 679                 return -1;
 680         }
 681
 682         nb_lcores = rte_lcore_count();
 683
 684         memset(lcore_conf, 0, sizeof(lcore_conf));
 685         init_lcores();
 686
 687         init_mbufpool(NB_MBUF);
 688
 689         if (sc_flag == SC_CONTINUOUS) {
 690                 nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 691                 nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 692         }
 693         printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd);
 694
 695         reset_count();
 696         num = 0;
 697         RTE_ETH_FOREACH_DEV(portid) {
 698                 if (socketid == -1) {
 699                         socketid = rte_eth_dev_socket_id(portid);
 700                         worker_id = alloc_lcore(socketid);
 701                         if (worker_id == (uint16_t)-1) {
 702                                 printf("No avail lcore to run test\n");
 703                                 return -1;
 704                         }
 705                         printf("Performance test runs on lcore %u socket %u\n",
 706                                worker_id, socketid);
 707                 }
 708
 709                 if (socketid != rte_eth_dev_socket_id(portid)) {
 710                         printf("Skip port %d\n", portid);
 711                         continue;
 712                 }
 713
 714                 /* port configure */
 715                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 716                                             nb_tx_queue, &port_conf);
 717                 if (ret < 0)
 718                         rte_exit(EXIT_FAILURE,
 719                                 "Cannot configure device: err=%d, port=%d\n",
 720                                  ret, portid);
 721
 722                 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 723                 if (ret < 0)
 724                         rte_exit(EXIT_FAILURE,
 725                                 "Cannot get mac address: err=%d, port=%d\n",
 726                                  ret, portid);
 727
 728                 printf("Port %u ", portid);
 729                 print_ethaddr("Address:", &ports_eth_addr[portid]);
 730                 printf("\n");
 731
 732                 /* tx queue setup */
 733                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 734                                              socketid, &tx_conf);
 735                 if (ret < 0)
 736                         rte_exit(EXIT_FAILURE,
 737                                 "rte_eth_tx_queue_setup: err=%d, "
 738                                 "port=%d\n", ret, portid);
 739
 740                 /* rx queue steup */
 741                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 742                                                 socketid, &rx_conf,
 743                                                 mbufpool[socketid]);
 744                 if (ret < 0)
 745                         rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
 746                                  "port=%d\n", ret, portid);
 747
 748                 /* Start device */
 749                 stop = 0;
 750                 ret = rte_eth_dev_start(portid);
 751                 if (ret < 0)
 752                         rte_exit(EXIT_FAILURE,
 753                                 "rte_eth_dev_start: err=%d, port=%d\n",
 754                                 ret, portid);
 755
 756                 /* always eanble promiscuous */
 757                 ret = rte_eth_promiscuous_enable(portid);
 758                 if (ret != 0)
 759                         rte_exit(EXIT_FAILURE,
 760                                  "rte_eth_promiscuous_enable: err=%s, port=%d\n",
 761                                  rte_strerror(-ret), portid);
 762
 763                 lcore_conf[worker_id].portlist[num++] = portid;
 764                 lcore_conf[worker_id].nb_ports++;
 765         }
 766         check_all_ports_link_status(nb_ports, RTE_PORT_ALL);
 767
 768         if (tx_burst == NULL) {
 769                 tx_burst = (struct rte_mbuf **)
 770                         rte_calloc_socket("tx_buff",
 771                                           MAX_TRAFFIC_BURST * nb_ports,
 772                                           sizeof(void *),
 773                                           RTE_CACHE_LINE_SIZE, socketid);
 774                 if (!tx_burst)
 775                         return -1;
 776         }
 777
 778         init_traffic(mbufpool[socketid],
 779                      tx_burst, MAX_TRAFFIC_BURST * nb_ports);
 780
 781         printf("Generate %d packets @socket %d\n",
 782                MAX_TRAFFIC_BURST * nb_ports, socketid);
 783
 784         if (sc_flag == SC_CONTINUOUS) {
 785                 /* do both rxtx by default */
 786                 if (NULL == do_measure)
 787                         do_measure = measure_rxtx;
 788
 789                 rte_eal_remote_launch(main_loop, NULL, worker_id);
 790
 791                 if (rte_eal_wait_lcore(worker_id) < 0)
 792                         return -1;
 793         } else if (sc_flag == SC_BURST_POLL_FIRST ||
 794                    sc_flag == SC_BURST_XMIT_FIRST)
 795                 if (exec_burst(sc_flag, worker_id) < 0)
 796                         return -1;
 797
 798         /* port tear down */
 799         RTE_ETH_FOREACH_DEV(portid) {
 800                 if (socketid != rte_eth_dev_socket_id(portid))
 801                         continue;
 802
 803                 ret = rte_eth_dev_stop(portid);
 804                 if (ret != 0)
 805                         printf("rte_eth_dev_stop: err=%s, port=%u\n",
 806                                rte_strerror(-ret), portid);
 807         }
 808
 809         return 0;
 810 }
 811
 812 int
 813 test_set_rxtx_conf(cmdline_fixed_string_t mode)
 814 {
 815         printf("mode switch to %s\n", mode);
 816
 817         if (!strcmp(mode, "vector")) {
 818                 /* vector rx, tx */
 819                 tx_conf.tx_rs_thresh = 32;
 820                 tx_conf.tx_free_thresh = 32;
 821                 return 0;
 822         } else if (!strcmp(mode, "scalar")) {
 823                 /* bulk alloc rx, full-featured tx */
 824                 tx_conf.tx_rs_thresh = 32;
 825                 tx_conf.tx_free_thresh = 32;
 826                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM;
 827                 return 0;
 828         } else if (!strcmp(mode, "hybrid")) {
 829                 /* bulk alloc rx, vector tx
 830                  * when vec macro not define,
 831                  * using the same rx/tx as scalar
 832                  */
 833                 tx_conf.tx_rs_thresh = 32;
 834                 tx_conf.tx_free_thresh = 32;
 835                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM;
 836                 return 0;
 837         } else if (!strcmp(mode, "full")) {
 838                 /* full feature rx,tx pair */
 839                 tx_conf.tx_rs_thresh = 32;
 840                 tx_conf.tx_free_thresh = 32;
 841                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
 842                 return 0;
 843         }
 844
 845         return -1;
 846 }
 847
 848 int
 849 test_set_rxtx_anchor(cmdline_fixed_string_t type)
 850 {
 851         printf("type switch to %s\n", type);
 852
 853         if (!strcmp(type, "rxtx")) {
 854                 do_measure = measure_rxtx;
 855                 return 0;
 856         } else if (!strcmp(type, "rxonly")) {
 857                 do_measure = measure_rxonly;
 858                 return 0;
 859         } else if (!strcmp(type, "txonly")) {
 860                 do_measure = measure_txonly;
 861                 return 0;
 862         }
 863
 864         return -1;
 865 }
 866
 867 int
 868 test_set_rxtx_sc(cmdline_fixed_string_t type)
 869 {
 870         printf("stream control switch to %s\n", type);
 871
 872         if (!strcmp(type, "continuous")) {
 873                 sc_flag = SC_CONTINUOUS;
 874                 return 0;
 875         } else if (!strcmp(type, "poll_before_xmit")) {
 876                 sc_flag = SC_BURST_POLL_FIRST;
 877                 return 0;
 878         } else if (!strcmp(type, "poll_after_xmit")) {
 879                 sc_flag = SC_BURST_XMIT_FIRST;
 880                 return 0;
 881         }
 882
 883         return -1;
 884 }
 885
 886 REGISTER_TEST_COMMAND(pmd_perf_autotest, test_pmd_perf);