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
 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                         rte_eth_link_get_nowait(portid, &link);
 138                         /* print link status if flag set */
 139                         if (print_flag == 1) {
 140                                 if (link.link_status) {
 141                                         printf(
 142                                         "Port%d Link Up. Speed %u Mbps - %s\n",
 143                                                 portid, link.link_speed,
 144                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 145                                         ("full-duplex") : ("half-duplex\n"));
 146                                         if (link_mbps == 0)
 147                                                 link_mbps = link.link_speed;
 148                                 } else
 149                                         printf("Port %d Link Down\n", portid);
 150                                 continue;
 151                         }
 152                         /* clear all_ports_up flag if any link down */
 153                         if (link.link_status == ETH_LINK_DOWN) {
 154                                 all_ports_up = 0;
 155                                 break;
 156                         }
 157                 }
 158                 /* after finally printing all link status, get out */
 159                 if (print_flag == 1)
 160                         break;
 161
 162                 if (all_ports_up == 0) {
 163                         fflush(stdout);
 164                         rte_delay_ms(CHECK_INTERVAL);
 165                 }
 166
 167                 /* set the print_flag if all ports up or timeout */
 168                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1))
 169                         print_flag = 1;
 170         }
 171 }
 172
 173 static void
 174 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
 175 {
 176         char buf[RTE_ETHER_ADDR_FMT_SIZE];
 177         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
 178         printf("%s%s", name, buf);
 179 }
 180
 181 static int
 182 init_traffic(struct rte_mempool *mp,
 183              struct rte_mbuf **pkts_burst, uint32_t burst_size)
 184 {
 185         struct rte_ether_hdr pkt_eth_hdr;
 186         struct ipv4_hdr pkt_ipv4_hdr;
 187         struct udp_hdr pkt_udp_hdr;
 188         uint32_t pktlen;
 189         static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF };
 190         static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA };
 191
 192
 193         initialize_eth_header(&pkt_eth_hdr,
 194                 (struct rte_ether_addr *)src_mac,
 195                 (struct rte_ether_addr *)dst_mac, RTE_ETHER_TYPE_IPv4, 0, 0);
 196
 197         pktlen = initialize_ipv4_header(&pkt_ipv4_hdr,
 198                                         IPV4_ADDR(10, 0, 0, 1),
 199                                         IPV4_ADDR(10, 0, 0, 2), 26);
 200         printf("IPv4 pktlen %u\n", pktlen);
 201
 202         pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18);
 203
 204         printf("UDP pktlen %u\n", pktlen);
 205
 206         return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr,
 207                                      0, &pkt_ipv4_hdr, 1,
 208                                      &pkt_udp_hdr, burst_size,
 209                                      PACKET_BURST_GEN_PKT_LEN, 1);
 210 }
 211
 212 static int
 213 init_lcores(void)
 214 {
 215         unsigned lcore_id;
 216
 217         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 218                 lcore_conf[lcore_id].socketid =
 219                         rte_lcore_to_socket_id(lcore_id);
 220                 if (rte_lcore_is_enabled(lcore_id) == 0) {
 221                         lcore_conf[lcore_id].status = LCORE_INVALID;
 222                         continue;
 223                 } else
 224                         lcore_conf[lcore_id].status = LCORE_AVAIL;
 225         }
 226         return 0;
 227 }
 228
 229 static int
 230 init_mbufpool(unsigned nb_mbuf)
 231 {
 232         int socketid;
 233         unsigned lcore_id;
 234         char s[64];
 235
 236         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 237                 if (rte_lcore_is_enabled(lcore_id) == 0)
 238                         continue;
 239
 240                 socketid = rte_lcore_to_socket_id(lcore_id);
 241                 if (socketid >= NB_SOCKETS) {
 242                         rte_exit(EXIT_FAILURE,
 243                                 "Socket %d of lcore %u is out of range %d\n",
 244                                 socketid, lcore_id, NB_SOCKETS);
 245                 }
 246                 if (mbufpool[socketid] == NULL) {
 247                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
 248                         mbufpool[socketid] =
 249                                 rte_pktmbuf_pool_create(s, nb_mbuf,
 250                                         MEMPOOL_CACHE_SIZE, 0,
 251                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
 252                         if (mbufpool[socketid] == NULL)
 253                                 rte_exit(EXIT_FAILURE,
 254                                         "Cannot init mbuf pool on socket %d\n",
 255                                         socketid);
 256                         else
 257                                 printf("Allocated mbuf pool on socket %d\n",
 258                                         socketid);
 259                 }
 260         }
 261         return 0;
 262 }
 263
 264 static uint16_t
 265 alloc_lcore(uint16_t socketid)
 266 {
 267         unsigned lcore_id;
 268
 269         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
 270                 if (LCORE_AVAIL != lcore_conf[lcore_id].status ||
 271                     lcore_conf[lcore_id].socketid != socketid ||
 272                     lcore_id == rte_get_master_lcore())
 273                         continue;
 274                 lcore_conf[lcore_id].status = LCORE_USED;
 275                 lcore_conf[lcore_id].nb_ports = 0;
 276                 return lcore_id;
 277         }
 278
 279         return (uint16_t)-1;
 280 }
 281
 282 static volatile uint64_t stop;
 283 static uint64_t count;
 284 static uint64_t drop;
 285 static uint64_t idle;
 286
 287 static void
 288 reset_count(void)
 289 {
 290         count = 0;
 291         drop = 0;
 292         idle = 0;
 293 }
 294
 295 static void
 296 stats_display(uint16_t port_id)
 297 {
 298         struct rte_eth_stats stats;
 299         rte_eth_stats_get(port_id, &stats);
 300
 301         printf("  RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes:  "
 302                "%-"PRIu64"\n",
 303                stats.ipackets, stats.imissed, stats.ibytes);
 304         printf("  RX-errors: %-10"PRIu64" RX-nombuf:  %-10"PRIu64"\n",
 305                stats.ierrors, stats.rx_nombuf);
 306         printf("  TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes:  "
 307                "%-"PRIu64"\n",
 308                stats.opackets, stats.oerrors, stats.obytes);
 309 }
 310
 311 static void
 312 signal_handler(int signum)
 313 {
 314         /*  USR1 signal, stop testing */
 315         if (signum == SIGUSR1) {
 316                 printf("Force Stop!\n");
 317                 stop = 1;
 318         }
 319
 320         /*  USR2 signal, print stats */
 321         if (signum == SIGUSR2)
 322                 stats_display(0);
 323 }
 324
 325 struct rte_mbuf **tx_burst;
 326
 327 uint64_t (*do_measure)(struct lcore_conf *conf,
 328                        struct rte_mbuf *pkts_burst[],
 329                        uint64_t total_pkts);
 330
 331 static uint64_t
 332 measure_rxtx(struct lcore_conf *conf,
 333              struct rte_mbuf *pkts_burst[],
 334              uint64_t total_pkts)
 335 {
 336         unsigned i, portid, nb_rx, nb_tx;
 337         uint64_t prev_tsc, cur_tsc;
 338
 339         prev_tsc = rte_rdtsc();
 340
 341         while (likely(!stop)) {
 342                 for (i = 0; i < conf->nb_ports; i++) {
 343                         portid = conf->portlist[i];
 344                         nb_rx = rte_eth_rx_burst(portid, 0,
 345                                                  pkts_burst, MAX_PKT_BURST);
 346                         if (unlikely(nb_rx == 0)) {
 347                                 idle++;
 348                                 continue;
 349                         }
 350
 351                         count += nb_rx;
 352                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 353                         if (unlikely(nb_tx < nb_rx)) {
 354                                 drop += (nb_rx - nb_tx);
 355                                 do {
 356                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 357                                 } while (++nb_tx < nb_rx);
 358                         }
 359                 }
 360                 if (unlikely(count >= total_pkts))
 361                         break;
 362         }
 363
 364         cur_tsc = rte_rdtsc();
 365
 366         return cur_tsc - prev_tsc;
 367 }
 368
 369 static uint64_t
 370 measure_rxonly(struct lcore_conf *conf,
 371                struct rte_mbuf *pkts_burst[],
 372                uint64_t total_pkts)
 373 {
 374         unsigned i, portid, nb_rx, nb_tx;
 375         uint64_t diff_tsc, cur_tsc;
 376
 377         diff_tsc = 0;
 378         while (likely(!stop)) {
 379                 for (i = 0; i < conf->nb_ports; i++) {
 380                         portid = conf->portlist[i];
 381
 382                         cur_tsc = rte_rdtsc();
 383                         nb_rx = rte_eth_rx_burst(portid, 0,
 384                                                  pkts_burst, MAX_PKT_BURST);
 385                         if (unlikely(nb_rx == 0)) {
 386                                 idle++;
 387                                 continue;
 388                         }
 389                         diff_tsc += rte_rdtsc() - cur_tsc;
 390
 391                         count += nb_rx;
 392                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 393                         if (unlikely(nb_tx < nb_rx)) {
 394                                 drop += (nb_rx - nb_tx);
 395                                 do {
 396                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 397                                 } while (++nb_tx < nb_rx);
 398                         }
 399                 }
 400                 if (unlikely(count >= total_pkts))
 401                         break;
 402         }
 403
 404         return diff_tsc;
 405 }
 406
 407 static uint64_t
 408 measure_txonly(struct lcore_conf *conf,
 409                struct rte_mbuf *pkts_burst[],
 410                uint64_t total_pkts)
 411 {
 412         unsigned i, portid, nb_rx, nb_tx;
 413         uint64_t diff_tsc, cur_tsc;
 414
 415         printf("do tx measure\n");
 416         diff_tsc = 0;
 417         while (likely(!stop)) {
 418                 for (i = 0; i < conf->nb_ports; i++) {
 419                         portid = conf->portlist[i];
 420                         nb_rx = rte_eth_rx_burst(portid, 0,
 421                                                  pkts_burst, MAX_PKT_BURST);
 422                         if (unlikely(nb_rx == 0)) {
 423                                 idle++;
 424                                 continue;
 425                         }
 426
 427                         count += nb_rx;
 428
 429                         cur_tsc = rte_rdtsc();
 430                         nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx);
 431                         if (unlikely(nb_tx < nb_rx)) {
 432                                 drop += (nb_rx - nb_tx);
 433                                 do {
 434                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 435                                 } while (++nb_tx < nb_rx);
 436                         }
 437                         diff_tsc += rte_rdtsc() - cur_tsc;
 438                 }
 439                 if (unlikely(count >= total_pkts))
 440                         break;
 441         }
 442
 443         return diff_tsc;
 444 }
 445
 446 /* main processing loop */
 447 static int
 448 main_loop(__rte_unused void *args)
 449 {
 450 #define PACKET_SIZE 64
 451 #define FRAME_GAP 12
 452 #define MAC_PREAMBLE 8
 453         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 454         unsigned lcore_id;
 455         unsigned i, portid, nb_rx = 0, nb_tx = 0;
 456         struct lcore_conf *conf;
 457         int pkt_per_port;
 458         uint64_t diff_tsc;
 459         uint64_t packets_per_second, total_packets;
 460
 461         lcore_id = rte_lcore_id();
 462         conf = &lcore_conf[lcore_id];
 463         if (conf->status != LCORE_USED)
 464                 return 0;
 465
 466         pkt_per_port = MAX_TRAFFIC_BURST;
 467
 468         int idx = 0;
 469         for (i = 0; i < conf->nb_ports; i++) {
 470                 int num = pkt_per_port;
 471                 portid = conf->portlist[i];
 472                 printf("inject %d packet to port %d\n", num, portid);
 473                 while (num) {
 474                         nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 475                         nb_tx = rte_eth_tx_burst(portid, 0,
 476                                                 &tx_burst[idx], nb_tx);
 477                         num -= nb_tx;
 478                         idx += nb_tx;
 479                 }
 480         }
 481         printf("Total packets inject to prime ports = %u\n", idx);
 482
 483         packets_per_second = (link_mbps * 1000 * 1000) /
 484                 ((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT);
 485         printf("Each port will do %"PRIu64" packets per second\n",
 486                packets_per_second);
 487
 488         total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second;
 489         printf("Test will stop after at least %"PRIu64" packets received\n",
 490                 + total_packets);
 491
 492         diff_tsc = do_measure(conf, pkts_burst, total_packets);
 493
 494         for (i = 0; i < conf->nb_ports; i++) {
 495                 portid = conf->portlist[i];
 496                 int nb_free = 0;
 497                 uint64_t timeout = 10000;
 498                 do { /* dry out */
 499                         nb_rx = rte_eth_rx_burst(portid, 0,
 500                                                  pkts_burst, MAX_PKT_BURST);
 501                         nb_tx = 0;
 502                         while (nb_tx < nb_rx)
 503                                 rte_pktmbuf_free(pkts_burst[nb_tx++]);
 504                         nb_free += nb_rx;
 505
 506                         if (unlikely(nb_rx == 0))
 507                                 timeout--;
 508                 } while (nb_free != pkt_per_port && timeout != 0);
 509                 printf("free %d (expected %d) mbuf left in port %u\n", nb_free,
 510                        pkt_per_port, portid);
 511         }
 512
 513         if (count == 0)
 514                 return -1;
 515
 516         printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n",
 517                count, drop, idle);
 518         printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count);
 519
 520         return 0;
 521 }
 522
 523 static rte_atomic64_t start;
 524
 525 static inline int
 526 poll_burst(void *args)
 527 {
 528 #define MAX_IDLE           (10000)
 529         unsigned lcore_id;
 530         struct rte_mbuf **pkts_burst;
 531         uint64_t diff_tsc, cur_tsc;
 532         uint16_t next[RTE_MAX_ETHPORTS];
 533         struct lcore_conf *conf;
 534         uint32_t pkt_per_port = *((uint32_t *)args);
 535         unsigned i, portid, nb_rx = 0;
 536         uint64_t total;
 537         uint64_t timeout = MAX_IDLE;
 538         int num[RTE_MAX_ETHPORTS];
 539
 540         lcore_id = rte_lcore_id();
 541         conf = &lcore_conf[lcore_id];
 542         if (conf->status != LCORE_USED)
 543                 return 0;
 544
 545         total = pkt_per_port * conf->nb_ports;
 546         printf("start to receive total expect %"PRIu64"\n", total);
 547
 548         pkts_burst = (struct rte_mbuf **)
 549                 rte_calloc_socket("poll_burst",
 550                                   total, sizeof(void *),
 551                                   RTE_CACHE_LINE_SIZE, conf->socketid);
 552         if (!pkts_burst)
 553                 return -1;
 554
 555         for (i = 0; i < conf->nb_ports; i++) {
 556                 portid = conf->portlist[i];
 557                 next[portid] = i * pkt_per_port;
 558                 num[portid] = pkt_per_port;
 559         }
 560
 561         while (!rte_atomic64_read(&start))
 562                 ;
 563
 564         cur_tsc = rte_rdtsc();
 565         while (total) {
 566                 for (i = 0; i < conf->nb_ports; i++) {
 567                         portid = conf->portlist[i];
 568                         nb_rx = rte_eth_rx_burst(portid, 0,
 569                                         &pkts_burst[next[portid]],
 570                                         RTE_MIN(MAX_PKT_BURST, num[portid]));
 571                         if (unlikely(nb_rx == 0)) {
 572                                 timeout--;
 573                                 if (unlikely(timeout == 0))
 574                                         goto timeout;
 575                                 continue;
 576                         }
 577                         next[portid] += nb_rx;
 578                         num[portid] -= nb_rx;
 579                         total -= nb_rx;
 580                 }
 581         }
 582 timeout:
 583         diff_tsc = rte_rdtsc() - cur_tsc;
 584
 585         printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n",
 586                total, MAX_IDLE - timeout);
 587         /* clean up */
 588         total = pkt_per_port * conf->nb_ports - total;
 589         for (i = 0; i < total; i++)
 590                 rte_pktmbuf_free(pkts_burst[i]);
 591
 592         rte_free(pkts_burst);
 593
 594         if (total > 0)
 595                 return diff_tsc / total;
 596         else
 597                 return -1;
 598 }
 599
 600 static int
 601 exec_burst(uint32_t flags, int lcore)
 602 {
 603         unsigned i, portid, nb_tx = 0;
 604         struct lcore_conf *conf;
 605         uint32_t pkt_per_port;
 606         int num, idx = 0;
 607         int diff_tsc;
 608
 609         conf = &lcore_conf[lcore];
 610
 611         pkt_per_port = MAX_TRAFFIC_BURST;
 612         num = pkt_per_port * conf->nb_ports;
 613
 614         rte_atomic64_init(&start);
 615
 616         /* start polling thread, but not actually poll yet */
 617         rte_eal_remote_launch(poll_burst,
 618                               (void *)&pkt_per_port, lcore);
 619
 620         /* Only when polling first */
 621         if (flags == SC_BURST_POLL_FIRST)
 622                 rte_atomic64_set(&start, 1);
 623
 624         /* start xmit */
 625         while (num) {
 626                 nb_tx = RTE_MIN(MAX_PKT_BURST, num);
 627                 for (i = 0; i < conf->nb_ports; i++) {
 628                         portid = conf->portlist[i];
 629                         nb_tx = rte_eth_tx_burst(portid, 0,
 630                                          &tx_burst[idx], nb_tx);
 631                         idx += nb_tx;
 632                         num -= nb_tx;
 633                 }
 634
 635         }
 636
 637         sleep(5);
 638
 639         /* only when polling second  */
 640         if (flags == SC_BURST_XMIT_FIRST)
 641                 rte_atomic64_set(&start, 1);
 642
 643         /* wait for polling finished */
 644         diff_tsc = rte_eal_wait_lcore(lcore);
 645         if (diff_tsc < 0) {
 646                 printf("exec_burst: Failed to measure cycles per packet\n");
 647                 return -1;
 648         }
 649
 650         printf("Result: %d cycles per packet\n", diff_tsc);
 651
 652         return 0;
 653 }
 654
 655 static int
 656 test_pmd_perf(void)
 657 {
 658         uint16_t nb_ports, num, nb_lcores, slave_id = (uint16_t)-1;
 659         uint16_t nb_rxd = MAX_TRAFFIC_BURST;
 660         uint16_t nb_txd = MAX_TRAFFIC_BURST;
 661         uint16_t portid;
 662         uint16_t nb_rx_queue = 1, nb_tx_queue = 1;
 663         int socketid = -1;
 664         int ret;
 665
 666         printf("Start PMD RXTX cycles cost test.\n");
 667
 668         signal(SIGUSR1, signal_handler);
 669         signal(SIGUSR2, signal_handler);
 670
 671         nb_ports = rte_eth_dev_count_avail();
 672         if (nb_ports < NB_ETHPORTS_USED) {
 673                 printf("At least %u port(s) used for perf. test\n",
 674                        NB_ETHPORTS_USED);
 675                 return -1;
 676         }
 677
 678         nb_lcores = rte_lcore_count();
 679
 680         memset(lcore_conf, 0, sizeof(lcore_conf));
 681         init_lcores();
 682
 683         init_mbufpool(NB_MBUF);
 684
 685         if (sc_flag == SC_CONTINUOUS) {
 686                 nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 687                 nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 688         }
 689         printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd);
 690
 691         reset_count();
 692         num = 0;
 693         RTE_ETH_FOREACH_DEV(portid) {
 694                 if (socketid == -1) {
 695                         socketid = rte_eth_dev_socket_id(portid);
 696                         slave_id = alloc_lcore(socketid);
 697                         if (slave_id == (uint16_t)-1) {
 698                                 printf("No avail lcore to run test\n");
 699                                 return -1;
 700                         }
 701                         printf("Performance test runs on lcore %u socket %u\n",
 702                                slave_id, socketid);
 703                 }
 704
 705                 if (socketid != rte_eth_dev_socket_id(portid)) {
 706                         printf("Skip port %d\n", portid);
 707                         continue;
 708                 }
 709
 710                 /* port configure */
 711                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
 712                                             nb_tx_queue, &port_conf);
 713                 if (ret < 0)
 714                         rte_exit(EXIT_FAILURE,
 715                                 "Cannot configure device: err=%d, port=%d\n",
 716                                  ret, portid);
 717
 718                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
 719                 printf("Port %u ", portid);
 720                 print_ethaddr("Address:", &ports_eth_addr[portid]);
 721                 printf("\n");
 722
 723                 /* tx queue setup */
 724                 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd,
 725                                              socketid, &tx_conf);
 726                 if (ret < 0)
 727                         rte_exit(EXIT_FAILURE,
 728                                 "rte_eth_tx_queue_setup: err=%d, "
 729                                 "port=%d\n", ret, portid);
 730
 731                 /* rx queue steup */
 732                 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd,
 733                                                 socketid, &rx_conf,
 734                                                 mbufpool[socketid]);
 735                 if (ret < 0)
 736                         rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d,"
 737                                  "port=%d\n", ret, portid);
 738
 739                 /* Start device */
 740                 stop = 0;
 741                 ret = rte_eth_dev_start(portid);
 742                 if (ret < 0)
 743                         rte_exit(EXIT_FAILURE,
 744                                 "rte_eth_dev_start: err=%d, port=%d\n",
 745                                 ret, portid);
 746
 747                 /* always eanble promiscuous */
 748                 rte_eth_promiscuous_enable(portid);
 749
 750                 lcore_conf[slave_id].portlist[num++] = portid;
 751                 lcore_conf[slave_id].nb_ports++;
 752         }
 753         check_all_ports_link_status(nb_ports, RTE_PORT_ALL);
 754
 755         if (tx_burst == NULL) {
 756                 tx_burst = (struct rte_mbuf **)
 757                         rte_calloc_socket("tx_buff",
 758                                           MAX_TRAFFIC_BURST * nb_ports,
 759                                           sizeof(void *),
 760                                           RTE_CACHE_LINE_SIZE, socketid);
 761                 if (!tx_burst)
 762                         return -1;
 763         }
 764
 765         init_traffic(mbufpool[socketid],
 766                      tx_burst, MAX_TRAFFIC_BURST * nb_ports);
 767
 768         printf("Generate %d packets @socket %d\n",
 769                MAX_TRAFFIC_BURST * nb_ports, socketid);
 770
 771         if (sc_flag == SC_CONTINUOUS) {
 772                 /* do both rxtx by default */
 773                 if (NULL == do_measure)
 774                         do_measure = measure_rxtx;
 775
 776                 rte_eal_remote_launch(main_loop, NULL, slave_id);
 777
 778                 if (rte_eal_wait_lcore(slave_id) < 0)
 779                         return -1;
 780         } else if (sc_flag == SC_BURST_POLL_FIRST ||
 781                    sc_flag == SC_BURST_XMIT_FIRST)
 782                 if (exec_burst(sc_flag, slave_id) < 0)
 783                         return -1;
 784
 785         /* port tear down */
 786         RTE_ETH_FOREACH_DEV(portid) {
 787                 if (socketid != rte_eth_dev_socket_id(portid))
 788                         continue;
 789
 790                 rte_eth_dev_stop(portid);
 791         }
 792
 793         return 0;
 794 }
 795
 796 int
 797 test_set_rxtx_conf(cmdline_fixed_string_t mode)
 798 {
 799         printf("mode switch to %s\n", mode);
 800
 801         if (!strcmp(mode, "vector")) {
 802                 /* vector rx, tx */
 803                 tx_conf.tx_rs_thresh = 32;
 804                 tx_conf.tx_free_thresh = 32;
 805                 return 0;
 806         } else if (!strcmp(mode, "scalar")) {
 807                 /* bulk alloc rx, full-featured tx */
 808                 tx_conf.tx_rs_thresh = 32;
 809                 tx_conf.tx_free_thresh = 32;
 810                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM;
 811                 return 0;
 812         } else if (!strcmp(mode, "hybrid")) {
 813                 /* bulk alloc rx, vector tx
 814                  * when vec macro not define,
 815                  * using the same rx/tx as scalar
 816                  */
 817                 tx_conf.tx_rs_thresh = 32;
 818                 tx_conf.tx_free_thresh = 32;
 819                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_CHECKSUM;
 820                 return 0;
 821         } else if (!strcmp(mode, "full")) {
 822                 /* full feature rx,tx pair */
 823                 tx_conf.tx_rs_thresh = 32;
 824                 tx_conf.tx_free_thresh = 32;
 825                 port_conf.rxmode.offloads |= DEV_RX_OFFLOAD_SCATTER;
 826                 return 0;
 827         }
 828
 829         return -1;
 830 }
 831
 832 int
 833 test_set_rxtx_anchor(cmdline_fixed_string_t type)
 834 {
 835         printf("type switch to %s\n", type);
 836
 837         if (!strcmp(type, "rxtx")) {
 838                 do_measure = measure_rxtx;
 839                 return 0;
 840         } else if (!strcmp(type, "rxonly")) {
 841                 do_measure = measure_rxonly;
 842                 return 0;
 843         } else if (!strcmp(type, "txonly")) {
 844                 do_measure = measure_txonly;
 845                 return 0;
 846         }
 847
 848         return -1;
 849 }
 850
 851 int
 852 test_set_rxtx_sc(cmdline_fixed_string_t type)
 853 {
 854         printf("stream control switch to %s\n", type);
 855
 856         if (!strcmp(type, "continuous")) {
 857                 sc_flag = SC_CONTINUOUS;
 858                 return 0;
 859         } else if (!strcmp(type, "poll_before_xmit")) {
 860                 sc_flag = SC_BURST_POLL_FIRST;
 861                 return 0;
 862         } else if (!strcmp(type, "poll_after_xmit")) {
 863                 sc_flag = SC_BURST_XMIT_FIRST;
 864                 return 0;
 865         }
 866
 867         return -1;
 868 }
 869
 870 REGISTER_TEST_COMMAND(pmd_perf_autotest, test_pmd_perf);