examples/ntb/ntb_fwd.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019 Intel Corporation
   3  */
   4 #include <stdint.h>
   5 #include <stdio.h>
   6 #include <inttypes.h>
   7 #include <unistd.h>
   8 #include <signal.h>
   9 #include <string.h>
  10 #include <getopt.h>
  11
  12 #include <cmdline_parse_string.h>
  13 #include <cmdline_socket.h>
  14 #include <cmdline.h>
  15 #include <rte_common.h>
  16 #include <rte_rawdev.h>
  17 #include <rte_ethdev.h>
  18 #include <rte_malloc.h>
  19 #include <rte_lcore.h>
  20 #include <rte_cycles.h>
  21 #include <rte_pmd_ntb.h>
  22
  23 /* Per-port statistics struct */
  24 struct ntb_port_statistics {
  25         uint64_t tx;
  26         uint64_t rx;
  27 } __rte_cache_aligned;
  28 /* Port 0: NTB dev, Port 1: ethdev when iofwd. */
  29 struct ntb_port_statistics ntb_port_stats[2];
  30
  31 struct ntb_fwd_stream {
  32         uint16_t tx_port;
  33         uint16_t rx_port;
  34         uint16_t qp_id;
  35         uint8_t tx_ntb;  /* If ntb device is tx port. */
  36 };
  37
  38 struct ntb_fwd_lcore_conf {
  39         uint16_t stream_id;
  40         uint16_t nb_stream;
  41         uint8_t stopped;
  42 };
  43
  44 enum ntb_fwd_mode {
  45         FILE_TRANS = 0,
  46         RXONLY,
  47         TXONLY,
  48         IOFWD,
  49         MAX_FWD_MODE,
  50 };
  51 static const char *const fwd_mode_s[] = {
  52         "file-trans",
  53         "rxonly",
  54         "txonly",
  55         "iofwd",
  56         NULL,
  57 };
  58 static enum ntb_fwd_mode fwd_mode = MAX_FWD_MODE;
  59
  60 static struct ntb_fwd_lcore_conf fwd_lcore_conf[RTE_MAX_LCORE];
  61 static struct ntb_fwd_stream *fwd_streams;
  62
  63 static struct rte_mempool *mbuf_pool;
  64
  65 #define NTB_DRV_NAME_LEN 7
  66 #define MEMPOOL_CACHE_SIZE 256
  67
  68 static uint8_t in_test;
  69 static uint8_t interactive = 1;
  70 static uint16_t eth_port_id = RTE_MAX_ETHPORTS;
  71 static uint16_t dev_id;
  72
  73 /* Number of queues, default set as 1 */
  74 static uint16_t num_queues = 1;
  75 static uint16_t ntb_buf_size = RTE_MBUF_DEFAULT_BUF_SIZE;
  76
  77 /* Configurable number of descriptors */
  78 #define NTB_DEFAULT_NUM_DESCS 1024
  79 static uint16_t nb_desc = NTB_DEFAULT_NUM_DESCS;
  80
  81 static uint16_t tx_free_thresh;
  82
  83 #define NTB_MAX_PKT_BURST 32
  84 #define NTB_DFLT_PKT_BURST 32
  85 static uint16_t pkt_burst = NTB_DFLT_PKT_BURST;
  86
  87 #define BURST_TX_RETRIES 64
  88
  89 static struct rte_eth_conf eth_port_conf = {
  90         .rxmode = {
  91                 .mq_mode = ETH_MQ_RX_RSS,
  92                 .split_hdr_size = 0,
  93         },
  94         .rx_adv_conf = {
  95                 .rss_conf = {
  96                         .rss_key = NULL,
  97                         .rss_hf = ETH_RSS_IP,
  98                 },
  99         },
 100         .txmode = {
 101                 .mq_mode = ETH_MQ_TX_NONE,
 102         },
 103 };
 104
 105 /* *** Help command with introduction. *** */
 106 struct cmd_help_result {
 107         cmdline_fixed_string_t help;
 108 };
 109
 110 static void
 111 cmd_help_parsed(__attribute__((unused)) void *parsed_result,
 112                 struct cmdline *cl,
 113                 __attribute__((unused)) void *data)
 114 {
 115         cmdline_printf(
 116                 cl,
 117                 "\n"
 118                 "The following commands are currently available:\n\n"
 119                 "Control:\n"
 120                 "    quit                                      :"
 121                 " Quit the application.\n"
 122                 "\nTransmission:\n"
 123                 "    send [path]                               :"
 124                 " Send [path] file. Only take effect in file-trans mode\n"
 125                 "    start                                     :"
 126                 " Start transmissions.\n"
 127                 "    stop                                      :"
 128                 " Stop transmissions.\n"
 129                 "    clear/show port stats                     :"
 130                 " Clear/show port stats.\n"
 131                 "    set fwd file-trans/rxonly/txonly/iofwd    :"
 132                 " Set packet forwarding mode.\n"
 133         );
 134
 135 }
 136
 137 cmdline_parse_token_string_t cmd_help_help =
 138         TOKEN_STRING_INITIALIZER(struct cmd_help_result, help, "help");
 139
 140 cmdline_parse_inst_t cmd_help = {
 141         .f = cmd_help_parsed,
 142         .data = NULL,
 143         .help_str = "show help",
 144         .tokens = {
 145                 (void *)&cmd_help_help,
 146                 NULL,
 147         },
 148 };
 149
 150 /* *** QUIT *** */
 151 struct cmd_quit_result {
 152         cmdline_fixed_string_t quit;
 153 };
 154
 155 static void
 156 cmd_quit_parsed(__attribute__((unused)) void *parsed_result,
 157                 struct cmdline *cl,
 158                 __attribute__((unused)) void *data)
 159 {
 160         struct ntb_fwd_lcore_conf *conf;
 161         uint8_t lcore_id;
 162
 163         /* Stop transmission first. */
 164         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 165                 conf = &fwd_lcore_conf[lcore_id];
 166
 167                 if (!conf->nb_stream)
 168                         continue;
 169
 170                 if (conf->stopped)
 171                         continue;
 172
 173                 conf->stopped = 1;
 174         }
 175         printf("\nWaiting for lcores to finish...\n");
 176         rte_eal_mp_wait_lcore();
 177         in_test = 0;
 178
 179         /* Stop traffic and Close port. */
 180         rte_rawdev_stop(dev_id);
 181         rte_rawdev_close(dev_id);
 182         if (eth_port_id < RTE_MAX_ETHPORTS && fwd_mode == IOFWD) {
 183                 rte_eth_dev_stop(eth_port_id);
 184                 rte_eth_dev_close(eth_port_id);
 185         }
 186
 187         cmdline_quit(cl);
 188 }
 189
 190 cmdline_parse_token_string_t cmd_quit_quit =
 191                 TOKEN_STRING_INITIALIZER(struct cmd_quit_result, quit, "quit");
 192
 193 cmdline_parse_inst_t cmd_quit = {
 194         .f = cmd_quit_parsed,
 195         .data = NULL,
 196         .help_str = "exit application",
 197         .tokens = {
 198                 (void *)&cmd_quit_quit,
 199                 NULL,
 200         },
 201 };
 202
 203 /* *** SEND FILE PARAMETERS *** */
 204 struct cmd_sendfile_result {
 205         cmdline_fixed_string_t send_string;
 206         char filepath[];
 207 };
 208
 209 static void
 210 cmd_sendfile_parsed(void *parsed_result,
 211                     __attribute__((unused)) struct cmdline *cl,
 212                     __attribute__((unused)) void *data)
 213 {
 214         struct cmd_sendfile_result *res = parsed_result;
 215         struct rte_rawdev_buf *pkts_send[NTB_MAX_PKT_BURST];
 216         struct rte_mbuf *mbuf_send[NTB_MAX_PKT_BURST];
 217         uint64_t size, count, i, nb_burst;
 218         uint16_t nb_tx, buf_size;
 219         unsigned int nb_pkt;
 220         size_t queue_id = 0;
 221         uint16_t retry = 0;
 222         uint32_t val;
 223         FILE *file;
 224
 225         if (num_queues != 1) {
 226                 printf("File transmission only supports 1 queue.\n");
 227                 num_queues = 1;
 228         }
 229
 230         file = fopen(res->filepath, "r");
 231         if (file == NULL) {
 232                 printf("Fail to open the file.\n");
 233                 return;
 234         }
 235
 236         if (fseek(file, 0, SEEK_END) < 0) {
 237                 printf("Fail to get file size.\n");
 238                 fclose(file);
 239                 return;
 240         }
 241         size = ftell(file);
 242         if (fseek(file, 0, SEEK_SET) < 0) {
 243                 printf("Fail to get file size.\n");
 244                 fclose(file);
 245                 return;
 246         }
 247
 248         /* Tell remote about the file size. */
 249         val = size >> 32;
 250         rte_rawdev_set_attr(dev_id, "spad_user_0", val);
 251         val = size;
 252         rte_rawdev_set_attr(dev_id, "spad_user_1", val);
 253         printf("Sending file, size is %"PRIu64"\n", size);
 254
 255         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 256                 pkts_send[i] = (struct rte_rawdev_buf *)
 257                                 malloc(sizeof(struct rte_rawdev_buf));
 258
 259         buf_size = ntb_buf_size - RTE_PKTMBUF_HEADROOM;
 260         count = (size + buf_size - 1) / buf_size;
 261         nb_burst = (count + pkt_burst - 1) / pkt_burst;
 262
 263         for (i = 0; i < nb_burst; i++) {
 264                 val = RTE_MIN(count, pkt_burst);
 265                 if (rte_mempool_get_bulk(mbuf_pool, (void **)mbuf_send,
 266                                         val) == 0) {
 267                         for (nb_pkt = 0; nb_pkt < val; nb_pkt++) {
 268                                 mbuf_send[nb_pkt]->port = dev_id;
 269                                 mbuf_send[nb_pkt]->data_len =
 270                                 fread(rte_pktmbuf_mtod(mbuf_send[nb_pkt],
 271                                         void *), 1, buf_size, file);
 272                                 mbuf_send[nb_pkt]->pkt_len =
 273                                         mbuf_send[nb_pkt]->data_len;
 274                                 pkts_send[nb_pkt]->buf_addr = mbuf_send[nb_pkt];
 275                         }
 276                 } else {
 277                         for (nb_pkt = 0; nb_pkt < val; nb_pkt++) {
 278                                 mbuf_send[nb_pkt] =
 279                                         rte_mbuf_raw_alloc(mbuf_pool);
 280                                 if (mbuf_send[nb_pkt] == NULL)
 281                                         break;
 282                                 mbuf_send[nb_pkt]->port = dev_id;
 283                                 mbuf_send[nb_pkt]->data_len =
 284                                 fread(rte_pktmbuf_mtod(mbuf_send[nb_pkt],
 285                                         void *), 1, buf_size, file);
 286                                 mbuf_send[nb_pkt]->pkt_len =
 287                                         mbuf_send[nb_pkt]->data_len;
 288                                 pkts_send[nb_pkt]->buf_addr = mbuf_send[nb_pkt];
 289                         }
 290                 }
 291
 292                 nb_tx = rte_rawdev_enqueue_buffers(dev_id, pkts_send, nb_pkt,
 293                                                    (void *)queue_id);
 294                 while (nb_tx != nb_pkt && retry < BURST_TX_RETRIES) {
 295                         rte_delay_us(1);
 296                         nb_tx += rte_rawdev_enqueue_buffers(dev_id,
 297                                 &pkts_send[nb_tx], nb_pkt - nb_tx,
 298                                 (void *)queue_id);
 299                 }
 300                 count -= nb_pkt;
 301         }
 302         /* Clear register after file sending done. */
 303         rte_rawdev_set_attr(dev_id, "spad_user_0", 0);
 304         rte_rawdev_set_attr(dev_id, "spad_user_1", 0);
 305         printf("Done sending file.\n");
 306
 307         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 308                 free(pkts_send[i]);
 309         fclose(file);
 310 }
 311
 312 cmdline_parse_token_string_t cmd_send_file_send =
 313         TOKEN_STRING_INITIALIZER(struct cmd_sendfile_result, send_string,
 314                                  "send");
 315 cmdline_parse_token_string_t cmd_send_file_filepath =
 316         TOKEN_STRING_INITIALIZER(struct cmd_sendfile_result, filepath, NULL);
 317
 318
 319 cmdline_parse_inst_t cmd_send_file = {
 320         .f = cmd_sendfile_parsed,
 321         .data = NULL,
 322         .help_str = "send <file_path>",
 323         .tokens = {
 324                 (void *)&cmd_send_file_send,
 325                 (void *)&cmd_send_file_filepath,
 326                 NULL,
 327         },
 328 };
 329
 330 #define RECV_FILE_LEN 30
 331 static int
 332 start_polling_recv_file(void *param)
 333 {
 334         struct rte_rawdev_buf *pkts_recv[NTB_MAX_PKT_BURST];
 335         struct ntb_fwd_lcore_conf *conf = param;
 336         struct rte_mbuf *mbuf;
 337         char filepath[RECV_FILE_LEN];
 338         uint64_t val, size, file_len;
 339         uint16_t nb_rx, i, file_no;
 340         size_t queue_id = 0;
 341         FILE *file;
 342
 343         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 344                 pkts_recv[i] = (struct rte_rawdev_buf *)
 345                                 malloc(sizeof(struct rte_rawdev_buf));
 346
 347         file_no = 0;
 348         while (!conf->stopped) {
 349                 snprintf(filepath, RECV_FILE_LEN, "ntb_recv_file%d", file_no);
 350                 file = fopen(filepath, "w");
 351                 if (file == NULL) {
 352                         printf("Fail to open the file.\n");
 353                         return -EINVAL;
 354                 }
 355
 356                 rte_rawdev_get_attr(dev_id, "spad_user_0", &val);
 357                 size = val << 32;
 358                 rte_rawdev_get_attr(dev_id, "spad_user_1", &val);
 359                 size |= val;
 360
 361                 if (!size) {
 362                         fclose(file);
 363                         continue;
 364                 }
 365
 366                 file_len = 0;
 367                 nb_rx = NTB_MAX_PKT_BURST;
 368                 while (file_len < size && !conf->stopped) {
 369                         nb_rx = rte_rawdev_dequeue_buffers(dev_id, pkts_recv,
 370                                                 pkt_burst, (void *)queue_id);
 371                         ntb_port_stats[0].rx += nb_rx;
 372                         for (i = 0; i < nb_rx; i++) {
 373                                 mbuf = pkts_recv[i]->buf_addr;
 374                                 fwrite(rte_pktmbuf_mtod(mbuf, void *), 1,
 375                                         mbuf->data_len, file);
 376                                 file_len += mbuf->data_len;
 377                                 rte_pktmbuf_free(mbuf);
 378                                 pkts_recv[i]->buf_addr = NULL;
 379                         }
 380                 }
 381
 382                 printf("Received file (size: %" PRIu64 ") from peer to %s.\n",
 383                         size, filepath);
 384                 fclose(file);
 385                 file_no++;
 386         }
 387
 388         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 389                 free(pkts_recv[i]);
 390         return 0;
 391 }
 392
 393 static int
 394 start_iofwd_per_lcore(void *param)
 395 {
 396         struct rte_rawdev_buf *ntb_buf[NTB_MAX_PKT_BURST];
 397         struct rte_mbuf *pkts_burst[NTB_MAX_PKT_BURST];
 398         struct ntb_fwd_lcore_conf *conf = param;
 399         struct ntb_fwd_stream fs;
 400         uint16_t nb_rx, nb_tx;
 401         int i, j;
 402
 403         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 404                 ntb_buf[i] = (struct rte_rawdev_buf *)
 405                              malloc(sizeof(struct rte_rawdev_buf));
 406
 407         while (!conf->stopped) {
 408                 for (i = 0; i < conf->nb_stream; i++) {
 409                         fs = fwd_streams[conf->stream_id + i];
 410                         if (fs.tx_ntb) {
 411                                 nb_rx = rte_eth_rx_burst(fs.rx_port,
 412                                                 fs.qp_id, pkts_burst,
 413                                                 pkt_burst);
 414                                 if (unlikely(nb_rx == 0))
 415                                         continue;
 416                                 for (j = 0; j < nb_rx; j++)
 417                                         ntb_buf[j]->buf_addr = pkts_burst[j];
 418                                 nb_tx =
 419                                 rte_rawdev_enqueue_buffers(fs.tx_port,
 420                                                 ntb_buf, nb_rx,
 421                                                 (void *)(size_t)fs.qp_id);
 422                                 ntb_port_stats[0].tx += nb_tx;
 423                                 ntb_port_stats[1].rx += nb_rx;
 424                         } else {
 425                                 nb_rx =
 426                                 rte_rawdev_dequeue_buffers(fs.rx_port,
 427                                                 ntb_buf, pkt_burst,
 428                                                 (void *)(size_t)fs.qp_id);
 429                                 if (unlikely(nb_rx == 0))
 430                                         continue;
 431                                 for (j = 0; j < nb_rx; j++)
 432                                         pkts_burst[j] = ntb_buf[j]->buf_addr;
 433                                 nb_tx = rte_eth_tx_burst(fs.tx_port,
 434                                         fs.qp_id, pkts_burst, nb_rx);
 435                                 ntb_port_stats[1].tx += nb_tx;
 436                                 ntb_port_stats[0].rx += nb_rx;
 437                         }
 438                         if (unlikely(nb_tx < nb_rx)) {
 439                                 do {
 440                                         rte_pktmbuf_free(pkts_burst[nb_tx]);
 441                                 } while (++nb_tx < nb_rx);
 442                         }
 443                 }
 444         }
 445
 446         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 447                 free(ntb_buf[i]);
 448
 449         return 0;
 450 }
 451
 452 static int
 453 start_rxonly_per_lcore(void *param)
 454 {
 455         struct rte_rawdev_buf *ntb_buf[NTB_MAX_PKT_BURST];
 456         struct ntb_fwd_lcore_conf *conf = param;
 457         struct ntb_fwd_stream fs;
 458         uint16_t nb_rx;
 459         int i, j;
 460
 461         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 462                 ntb_buf[i] = (struct rte_rawdev_buf *)
 463                              malloc(sizeof(struct rte_rawdev_buf));
 464
 465         while (!conf->stopped) {
 466                 for (i = 0; i < conf->nb_stream; i++) {
 467                         fs = fwd_streams[conf->stream_id + i];
 468                         nb_rx = rte_rawdev_dequeue_buffers(fs.rx_port,
 469                                 ntb_buf, pkt_burst, (void *)(size_t)fs.qp_id);
 470                         if (unlikely(nb_rx == 0))
 471                                 continue;
 472                         ntb_port_stats[0].rx += nb_rx;
 473
 474                         for (j = 0; j < nb_rx; j++)
 475                                 rte_pktmbuf_free(ntb_buf[j]->buf_addr);
 476                 }
 477         }
 478
 479         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 480                 free(ntb_buf[i]);
 481
 482         return 0;
 483 }
 484
 485
 486 static int
 487 start_txonly_per_lcore(void *param)
 488 {
 489         struct rte_rawdev_buf *ntb_buf[NTB_MAX_PKT_BURST];
 490         struct rte_mbuf *pkts_burst[NTB_MAX_PKT_BURST];
 491         struct ntb_fwd_lcore_conf *conf = param;
 492         struct ntb_fwd_stream fs;
 493         uint16_t nb_pkt, nb_tx;
 494         int i;
 495
 496         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 497                 ntb_buf[i] = (struct rte_rawdev_buf *)
 498                              malloc(sizeof(struct rte_rawdev_buf));
 499
 500         while (!conf->stopped) {
 501                 for (i = 0; i < conf->nb_stream; i++) {
 502                         fs = fwd_streams[conf->stream_id + i];
 503                         if (rte_mempool_get_bulk(mbuf_pool, (void **)pkts_burst,
 504                                   pkt_burst) == 0) {
 505                                 for (nb_pkt = 0; nb_pkt < pkt_burst; nb_pkt++) {
 506                                         pkts_burst[nb_pkt]->port = dev_id;
 507                                         pkts_burst[nb_pkt]->data_len =
 508                                                 pkts_burst[nb_pkt]->buf_len -
 509                                                 RTE_PKTMBUF_HEADROOM;
 510                                         pkts_burst[nb_pkt]->pkt_len =
 511                                                 pkts_burst[nb_pkt]->data_len;
 512                                         ntb_buf[nb_pkt]->buf_addr =
 513                                                 pkts_burst[nb_pkt];
 514                                 }
 515                         } else {
 516                                 for (nb_pkt = 0; nb_pkt < pkt_burst; nb_pkt++) {
 517                                         pkts_burst[nb_pkt] =
 518                                                 rte_pktmbuf_alloc(mbuf_pool);
 519                                         if (pkts_burst[nb_pkt] == NULL)
 520                                                 break;
 521                                         pkts_burst[nb_pkt]->port = dev_id;
 522                                         pkts_burst[nb_pkt]->data_len =
 523                                                 pkts_burst[nb_pkt]->buf_len -
 524                                                 RTE_PKTMBUF_HEADROOM;
 525                                         pkts_burst[nb_pkt]->pkt_len =
 526                                                 pkts_burst[nb_pkt]->data_len;
 527                                         ntb_buf[nb_pkt]->buf_addr =
 528                                                 pkts_burst[nb_pkt];
 529                                 }
 530                         }
 531                         nb_tx = rte_rawdev_enqueue_buffers(fs.tx_port,
 532                                 ntb_buf, nb_pkt, (void *)(size_t)fs.qp_id);
 533                         ntb_port_stats[0].tx += nb_tx;
 534                         if (unlikely(nb_tx < nb_pkt)) {
 535                                 do {
 536                                         rte_pktmbuf_free(
 537                                                 ntb_buf[nb_tx]->buf_addr);
 538                                 } while (++nb_tx < nb_pkt);
 539                         }
 540                 }
 541         }
 542
 543         for (i = 0; i < NTB_MAX_PKT_BURST; i++)
 544                 free(ntb_buf[i]);
 545
 546         return 0;
 547 }
 548
 549 static int
 550 ntb_fwd_config_setup(void)
 551 {
 552         uint16_t i;
 553
 554         /* Make sure iofwd has valid ethdev. */
 555         if (fwd_mode == IOFWD && eth_port_id >= RTE_MAX_ETHPORTS) {
 556                 printf("No ethdev, cannot be in iofwd mode.");
 557                 return -EINVAL;
 558         }
 559
 560         if (fwd_mode == IOFWD) {
 561                 fwd_streams = rte_zmalloc("ntb_fwd: fwd_streams",
 562                         sizeof(struct ntb_fwd_stream) * num_queues * 2,
 563                         RTE_CACHE_LINE_SIZE);
 564                 for (i = 0; i < num_queues; i++) {
 565                         fwd_streams[i * 2].qp_id = i;
 566                         fwd_streams[i * 2].tx_port = dev_id;
 567                         fwd_streams[i * 2].rx_port = eth_port_id;
 568                         fwd_streams[i * 2].tx_ntb = 1;
 569
 570                         fwd_streams[i * 2 + 1].qp_id = i;
 571                         fwd_streams[i * 2 + 1].tx_port = eth_port_id;
 572                         fwd_streams[i * 2 + 1].rx_port = dev_id;
 573                         fwd_streams[i * 2 + 1].tx_ntb = 0;
 574                 }
 575                 return 0;
 576         }
 577
 578         if (fwd_mode == RXONLY || fwd_mode == FILE_TRANS) {
 579                 /* Only support 1 queue in file-trans for in order. */
 580                 if (fwd_mode == FILE_TRANS)
 581                         num_queues = 1;
 582
 583                 fwd_streams = rte_zmalloc("ntb_fwd: fwd_streams",
 584                                 sizeof(struct ntb_fwd_stream) * num_queues,
 585                                 RTE_CACHE_LINE_SIZE);
 586                 for (i = 0; i < num_queues; i++) {
 587                         fwd_streams[i].qp_id = i;
 588                         fwd_streams[i].tx_port = RTE_MAX_ETHPORTS;
 589                         fwd_streams[i].rx_port = dev_id;
 590                         fwd_streams[i].tx_ntb = 0;
 591                 }
 592                 return 0;
 593         }
 594
 595         if (fwd_mode == TXONLY) {
 596                 fwd_streams = rte_zmalloc("ntb_fwd: fwd_streams",
 597                                 sizeof(struct ntb_fwd_stream) * num_queues,
 598                                 RTE_CACHE_LINE_SIZE);
 599                 for (i = 0; i < num_queues; i++) {
 600                         fwd_streams[i].qp_id = i;
 601                         fwd_streams[i].tx_port = dev_id;
 602                         fwd_streams[i].rx_port = RTE_MAX_ETHPORTS;
 603                         fwd_streams[i].tx_ntb = 1;
 604                 }
 605         }
 606         return 0;
 607 }
 608
 609 static void
 610 assign_stream_to_lcores(void)
 611 {
 612         struct ntb_fwd_lcore_conf *conf;
 613         struct ntb_fwd_stream *fs;
 614         uint16_t nb_streams, sm_per_lcore, sm_id, i;
 615         uint8_t lcore_id, lcore_num, nb_extra;
 616
 617         lcore_num = rte_lcore_count();
 618         /* Exclude master core */
 619         lcore_num--;
 620
 621         nb_streams = (fwd_mode == IOFWD) ? num_queues * 2 : num_queues;
 622
 623         sm_per_lcore = nb_streams / lcore_num;
 624         nb_extra = nb_streams % lcore_num;
 625         sm_id = 0;
 626         i = 0;
 627
 628         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 629                 conf = &fwd_lcore_conf[lcore_id];
 630
 631                 if (i < nb_extra) {
 632                         conf->nb_stream = sm_per_lcore + 1;
 633                         conf->stream_id = sm_id;
 634                         sm_id = sm_id + sm_per_lcore + 1;
 635                 } else {
 636                         conf->nb_stream = sm_per_lcore;
 637                         conf->stream_id = sm_id;
 638                         sm_id = sm_id + sm_per_lcore;
 639                 }
 640
 641                 i++;
 642                 if (sm_id >= nb_streams)
 643                         break;
 644         }
 645
 646         /* Print packet forwading config. */
 647         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 648                 conf = &fwd_lcore_conf[lcore_id];
 649
 650                 if (!conf->nb_stream)
 651                         continue;
 652
 653                 printf("Streams on Lcore %u :\n", lcore_id);
 654                 for (i = 0; i < conf->nb_stream; i++) {
 655                         fs = &fwd_streams[conf->stream_id + i];
 656                         if (fwd_mode == IOFWD)
 657                                 printf(" + Stream %u : %s%u RX -> %s%u TX,"
 658                                         " Q=%u\n", conf->stream_id + i,
 659                                         fs->tx_ntb ? "Eth" : "NTB", fs->rx_port,
 660                                         fs->tx_ntb ? "NTB" : "Eth", fs->tx_port,
 661                                         fs->qp_id);
 662                         if (fwd_mode == FILE_TRANS || fwd_mode == RXONLY)
 663                                 printf(" + Stream %u : %s%u RX only\n",
 664                                         conf->stream_id, "NTB", fs->rx_port);
 665                         if (fwd_mode == TXONLY)
 666                                 printf(" + Stream %u : %s%u TX only\n",
 667                                         conf->stream_id, "NTB", fs->tx_port);
 668                 }
 669         }
 670 }
 671
 672 static void
 673 start_pkt_fwd(void)
 674 {
 675         struct ntb_fwd_lcore_conf *conf;
 676         struct rte_eth_link eth_link;
 677         uint8_t lcore_id;
 678         int ret, i;
 679
 680         ret = ntb_fwd_config_setup();
 681         if (ret < 0) {
 682                 printf("Cannot start traffic. Please reset fwd mode.\n");
 683                 return;
 684         }
 685
 686         /* If using iofwd, checking ethdev link status first. */
 687         if (fwd_mode == IOFWD) {
 688                 printf("Checking eth link status...\n");
 689                 /* Wait for eth link up at most 100 times. */
 690                 for (i = 0; i < 100; i++) {
 691                         rte_eth_link_get(eth_port_id, &eth_link);
 692                         if (eth_link.link_status) {
 693                                 printf("Eth%u Link Up. Speed %u Mbps - %s\n",
 694                                         eth_port_id, eth_link.link_speed,
 695                                         (eth_link.link_duplex ==
 696                                          ETH_LINK_FULL_DUPLEX) ?
 697                                         ("full-duplex") : ("half-duplex"));
 698                                 break;
 699                         }
 700                 }
 701                 if (!eth_link.link_status) {
 702                         printf("Eth%u link down. Cannot start traffic.\n",
 703                                 eth_port_id);
 704                         return;
 705                 }
 706         }
 707
 708         assign_stream_to_lcores();
 709         in_test = 1;
 710
 711         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 712                 conf = &fwd_lcore_conf[lcore_id];
 713
 714                 if (!conf->nb_stream)
 715                         continue;
 716
 717                 conf->stopped = 0;
 718                 if (fwd_mode == FILE_TRANS)
 719                         rte_eal_remote_launch(start_polling_recv_file,
 720                                               conf, lcore_id);
 721                 else if (fwd_mode == IOFWD)
 722                         rte_eal_remote_launch(start_iofwd_per_lcore,
 723                                               conf, lcore_id);
 724                 else if (fwd_mode == RXONLY)
 725                         rte_eal_remote_launch(start_rxonly_per_lcore,
 726                                               conf, lcore_id);
 727                 else if (fwd_mode == TXONLY)
 728                         rte_eal_remote_launch(start_txonly_per_lcore,
 729                                               conf, lcore_id);
 730         }
 731 }
 732
 733 /* *** START FWD PARAMETERS *** */
 734 struct cmd_start_result {
 735         cmdline_fixed_string_t start;
 736 };
 737
 738 static void
 739 cmd_start_parsed(__attribute__((unused)) void *parsed_result,
 740                             __attribute__((unused)) struct cmdline *cl,
 741                             __attribute__((unused)) void *data)
 742 {
 743         start_pkt_fwd();
 744 }
 745
 746 cmdline_parse_token_string_t cmd_start_start =
 747                 TOKEN_STRING_INITIALIZER(struct cmd_start_result, start, "start");
 748
 749 cmdline_parse_inst_t cmd_start = {
 750         .f = cmd_start_parsed,
 751         .data = NULL,
 752         .help_str = "start pkt fwd between ntb and ethdev",
 753         .tokens = {
 754                 (void *)&cmd_start_start,
 755                 NULL,
 756         },
 757 };
 758
 759 /* *** STOP *** */
 760 struct cmd_stop_result {
 761         cmdline_fixed_string_t stop;
 762 };
 763
 764 static void
 765 cmd_stop_parsed(__attribute__((unused)) void *parsed_result,
 766                 __attribute__((unused)) struct cmdline *cl,
 767                 __attribute__((unused)) void *data)
 768 {
 769         struct ntb_fwd_lcore_conf *conf;
 770         uint8_t lcore_id;
 771
 772         RTE_LCORE_FOREACH_SLAVE(lcore_id) {
 773                 conf = &fwd_lcore_conf[lcore_id];
 774
 775                 if (!conf->nb_stream)
 776                         continue;
 777
 778                 if (conf->stopped)
 779                         continue;
 780
 781                 conf->stopped = 1;
 782         }
 783         printf("\nWaiting for lcores to finish...\n");
 784         rte_eal_mp_wait_lcore();
 785         in_test = 0;
 786         printf("\nDone.\n");
 787 }
 788
 789 cmdline_parse_token_string_t cmd_stop_stop =
 790                 TOKEN_STRING_INITIALIZER(struct cmd_stop_result, stop, "stop");
 791
 792 cmdline_parse_inst_t cmd_stop = {
 793         .f = cmd_stop_parsed,
 794         .data = NULL,
 795         .help_str = "stop: Stop packet forwarding",
 796         .tokens = {
 797                 (void *)&cmd_stop_stop,
 798                 NULL,
 799         },
 800 };
 801
 802 static void
 803 ntb_stats_clear(void)
 804 {
 805         int nb_ids, i;
 806         uint32_t *ids;
 807
 808         /* Clear NTB dev stats */
 809         nb_ids = rte_rawdev_xstats_names_get(dev_id, NULL, 0);
 810         if (nb_ids  < 0) {
 811                 printf("Error: Cannot get count of xstats\n");
 812                 return;
 813         }
 814         ids = malloc(sizeof(uint32_t) * nb_ids);
 815         for (i = 0; i < nb_ids; i++)
 816                 ids[i] = i;
 817         rte_rawdev_xstats_reset(dev_id, ids, nb_ids);
 818         printf("\n  statistics for NTB port %d cleared\n", dev_id);
 819
 820         /* Clear Ethdev stats if have any */
 821         if (fwd_mode == IOFWD && eth_port_id != RTE_MAX_ETHPORTS) {
 822                 rte_eth_stats_reset(eth_port_id);
 823                 printf("\n  statistics for ETH port %d cleared\n", eth_port_id);
 824         }
 825 }
 826
 827 static inline void
 828 ntb_calculate_throughput(uint16_t port) {
 829         uint64_t diff_pkts_rx, diff_pkts_tx, diff_cycles;
 830         uint64_t mpps_rx, mpps_tx;
 831         static uint64_t prev_pkts_rx[2];
 832         static uint64_t prev_pkts_tx[2];
 833         static uint64_t prev_cycles[2];
 834
 835         diff_cycles = prev_cycles[port];
 836         prev_cycles[port] = rte_rdtsc();
 837         if (diff_cycles > 0)
 838                 diff_cycles = prev_cycles[port] - diff_cycles;
 839         diff_pkts_rx = (ntb_port_stats[port].rx > prev_pkts_rx[port]) ?
 840                 (ntb_port_stats[port].rx - prev_pkts_rx[port]) : 0;
 841         diff_pkts_tx = (ntb_port_stats[port].tx > prev_pkts_tx[port]) ?
 842                 (ntb_port_stats[port].tx - prev_pkts_tx[port]) : 0;
 843         prev_pkts_rx[port] = ntb_port_stats[port].rx;
 844         prev_pkts_tx[port] = ntb_port_stats[port].tx;
 845         mpps_rx = diff_cycles > 0 ?
 846                 diff_pkts_rx * rte_get_tsc_hz() / diff_cycles : 0;
 847         mpps_tx = diff_cycles > 0 ?
 848                 diff_pkts_tx * rte_get_tsc_hz() / diff_cycles : 0;
 849         printf("  Throughput (since last show)\n");
 850         printf("  Rx-pps: %12"PRIu64"\n  Tx-pps: %12"PRIu64"\n",
 851                         mpps_rx, mpps_tx);
 852
 853 }
 854
 855 static void
 856 ntb_stats_display(void)
 857 {
 858         struct rte_rawdev_xstats_name *xstats_names;
 859         struct rte_eth_stats stats;
 860         uint64_t *values;
 861         uint32_t *ids;
 862         int nb_ids, i;
 863
 864         printf("###### statistics for NTB port %d #######\n", dev_id);
 865
 866         /* Get NTB dev stats and stats names */
 867         nb_ids = rte_rawdev_xstats_names_get(dev_id, NULL, 0);
 868         if (nb_ids  < 0) {
 869                 printf("Error: Cannot get count of xstats\n");
 870                 return;
 871         }
 872         xstats_names = malloc(sizeof(struct rte_rawdev_xstats_name) * nb_ids);
 873         if (xstats_names == NULL) {
 874                 printf("Cannot allocate memory for xstats lookup\n");
 875                 return;
 876         }
 877         if (nb_ids != rte_rawdev_xstats_names_get(
 878                         dev_id, xstats_names, nb_ids)) {
 879                 printf("Error: Cannot get xstats lookup\n");
 880                 free(xstats_names);
 881                 return;
 882         }
 883         ids = malloc(sizeof(uint32_t) * nb_ids);
 884         for (i = 0; i < nb_ids; i++)
 885                 ids[i] = i;
 886         values = malloc(sizeof(uint64_t) * nb_ids);
 887         if (nb_ids != rte_rawdev_xstats_get(dev_id, ids, values, nb_ids)) {
 888                 printf("Error: Unable to get xstats\n");
 889                 free(xstats_names);
 890                 free(values);
 891                 free(ids);
 892                 return;
 893         }
 894
 895         /* Display NTB dev stats */
 896         for (i = 0; i < nb_ids; i++)
 897                 printf("  %s: %"PRIu64"\n", xstats_names[i].name, values[i]);
 898         ntb_calculate_throughput(0);
 899
 900         /* Get Ethdev stats if have any */
 901         if (fwd_mode == IOFWD && eth_port_id != RTE_MAX_ETHPORTS) {
 902                 printf("###### statistics for ETH port %d ######\n",
 903                         eth_port_id);
 904                 rte_eth_stats_get(eth_port_id, &stats);
 905                 printf("  RX-packets: %"PRIu64"\n", stats.ipackets);
 906                 printf("  RX-bytes: %"PRIu64"\n", stats.ibytes);
 907                 printf("  RX-errors: %"PRIu64"\n", stats.ierrors);
 908                 printf("  RX-missed: %"PRIu64"\n", stats.imissed);
 909                 printf("  TX-packets: %"PRIu64"\n", stats.opackets);
 910                 printf("  TX-bytes: %"PRIu64"\n", stats.obytes);
 911                 printf("  TX-errors: %"PRIu64"\n", stats.oerrors);
 912                 ntb_calculate_throughput(1);
 913         }
 914
 915         free(xstats_names);
 916         free(values);
 917         free(ids);
 918 }
 919
 920 /* *** SHOW/CLEAR PORT STATS *** */
 921 struct cmd_stats_result {
 922         cmdline_fixed_string_t show;
 923         cmdline_fixed_string_t port;
 924         cmdline_fixed_string_t stats;
 925 };
 926
 927 static void
 928 cmd_stats_parsed(void *parsed_result,
 929                  __attribute__((unused)) struct cmdline *cl,
 930                  __attribute__((unused)) void *data)
 931 {
 932         struct cmd_stats_result *res = parsed_result;
 933         if (!strcmp(res->show, "clear"))
 934                 ntb_stats_clear();
 935         else
 936                 ntb_stats_display();
 937 }
 938
 939 cmdline_parse_token_string_t cmd_stats_show =
 940         TOKEN_STRING_INITIALIZER(struct cmd_stats_result, show, "show#clear");
 941 cmdline_parse_token_string_t cmd_stats_port =
 942         TOKEN_STRING_INITIALIZER(struct cmd_stats_result, port, "port");
 943 cmdline_parse_token_string_t cmd_stats_stats =
 944         TOKEN_STRING_INITIALIZER(struct cmd_stats_result, stats, "stats");
 945
 946
 947 cmdline_parse_inst_t cmd_stats = {
 948         .f = cmd_stats_parsed,
 949         .data = NULL,
 950         .help_str = "show|clear port stats",
 951         .tokens = {
 952                 (void *)&cmd_stats_show,
 953                 (void *)&cmd_stats_port,
 954                 (void *)&cmd_stats_stats,
 955                 NULL,
 956         },
 957 };
 958
 959 /* *** SET FORWARDING MODE *** */
 960 struct cmd_set_fwd_mode_result {
 961         cmdline_fixed_string_t set;
 962         cmdline_fixed_string_t fwd;
 963         cmdline_fixed_string_t mode;
 964 };
 965
 966 static void
 967 cmd_set_fwd_mode_parsed(__attribute__((unused)) void *parsed_result,
 968                         __attribute__((unused)) struct cmdline *cl,
 969                         __attribute__((unused)) void *data)
 970 {
 971         struct cmd_set_fwd_mode_result *res = parsed_result;
 972         int i;
 973
 974         if (in_test) {
 975                 printf("Please stop traffic first.\n");
 976                 return;
 977         }
 978
 979         for (i = 0; i < MAX_FWD_MODE; i++) {
 980                 if (!strcmp(res->mode, fwd_mode_s[i])) {
 981                         fwd_mode = i;
 982                         return;
 983                 }
 984         }
 985         printf("Invalid %s packet forwarding mode.\n", res->mode);
 986 }
 987
 988 cmdline_parse_token_string_t cmd_setfwd_set =
 989         TOKEN_STRING_INITIALIZER(struct cmd_set_fwd_mode_result, set, "set");
 990 cmdline_parse_token_string_t cmd_setfwd_fwd =
 991         TOKEN_STRING_INITIALIZER(struct cmd_set_fwd_mode_result, fwd, "fwd");
 992 cmdline_parse_token_string_t cmd_setfwd_mode =
 993         TOKEN_STRING_INITIALIZER(struct cmd_set_fwd_mode_result, mode,
 994                                 "file-trans#iofwd#txonly#rxonly");
 995
 996 cmdline_parse_inst_t cmd_set_fwd_mode = {
 997         .f = cmd_set_fwd_mode_parsed,
 998         .data = NULL,
 999         .help_str = "set forwarding mode as file-trans|rxonly|txonly|iofwd",
1000         .tokens = {
1001                 (void *)&cmd_setfwd_set,
1002                 (void *)&cmd_setfwd_fwd,
1003                 (void *)&cmd_setfwd_mode,
1004                 NULL,
1005         },
1006 };
1007
1008 /* list of instructions */
1009 cmdline_parse_ctx_t main_ctx[] = {
1010         (cmdline_parse_inst_t *)&cmd_help,
1011         (cmdline_parse_inst_t *)&cmd_send_file,
1012         (cmdline_parse_inst_t *)&cmd_start,
1013         (cmdline_parse_inst_t *)&cmd_stop,
1014         (cmdline_parse_inst_t *)&cmd_stats,
1015         (cmdline_parse_inst_t *)&cmd_set_fwd_mode,
1016         (cmdline_parse_inst_t *)&cmd_quit,
1017         NULL,
1018 };
1019
1020 /* prompt function, called from main on MASTER lcore */
1021 static void
1022 prompt(void)
1023 {
1024         struct cmdline *cl;
1025
1026         cl = cmdline_stdin_new(main_ctx, "ntb> ");
1027         if (cl == NULL)
1028                 return;
1029
1030         cmdline_interact(cl);
1031         cmdline_stdin_exit(cl);
1032 }
1033
1034 static void
1035 signal_handler(int signum)
1036 {
1037         if (signum == SIGINT || signum == SIGTERM) {
1038                 printf("\nSignal %d received, preparing to exit...\n", signum);
1039                 signal(signum, SIG_DFL);
1040                 kill(getpid(), signum);
1041         }
1042 }
1043
1044 #define OPT_BUF_SIZE         "buf-size"
1045 #define OPT_FWD_MODE         "fwd-mode"
1046 #define OPT_NB_DESC          "nb-desc"
1047 #define OPT_TXFREET          "txfreet"
1048 #define OPT_BURST            "burst"
1049 #define OPT_QP               "qp"
1050
1051 enum {
1052         /* long options mapped to a short option */
1053         OPT_NO_ZERO_COPY_NUM = 1,
1054         OPT_BUF_SIZE_NUM,
1055         OPT_FWD_MODE_NUM,
1056         OPT_NB_DESC_NUM,
1057         OPT_TXFREET_NUM,
1058         OPT_BURST_NUM,
1059         OPT_QP_NUM,
1060 };
1061
1062 static const char short_options[] =
1063         "i" /* interactive mode */
1064         ;
1065
1066 static const struct option lgopts[] = {
1067         {OPT_BUF_SIZE,     1, NULL, OPT_BUF_SIZE_NUM     },
1068         {OPT_FWD_MODE,     1, NULL, OPT_FWD_MODE_NUM     },
1069         {OPT_NB_DESC,      1, NULL, OPT_NB_DESC_NUM      },
1070         {OPT_TXFREET,      1, NULL, OPT_TXFREET_NUM      },
1071         {OPT_BURST,        1, NULL, OPT_BURST_NUM        },
1072         {OPT_QP,           1, NULL, OPT_QP_NUM           },
1073         {0,                0, NULL, 0                    }
1074 };
1075
1076 static void
1077 ntb_usage(const char *prgname)
1078 {
1079         printf("%s [EAL options] -- [options]\n"
1080                "-i: run in interactive mode.\n"
1081                "-qp=N: set number of queues as N (N > 0, default: 1).\n"
1082                "--fwd-mode=N: set fwd mode (N: file-trans | rxonly | "
1083                "txonly | iofwd, default: file-trans)\n"
1084                "--buf-size=N: set mbuf dataroom size as N (0 < N < 65535,"
1085                " default: 2048).\n"
1086                "--nb-desc=N: set number of descriptors as N (%u <= N <= %u,"
1087                " default: 1024).\n"
1088                "--txfreet=N: set tx free thresh for NTB driver as N. (N >= 0)\n"
1089                "--burst=N: set pkt burst as N (0 < N <= %u default: 32).\n",
1090                prgname, NTB_MIN_DESC_SIZE, NTB_MAX_DESC_SIZE,
1091                NTB_MAX_PKT_BURST);
1092 }
1093
1094 static void
1095 ntb_parse_args(int argc, char **argv)
1096 {
1097         char *prgname = argv[0], **argvopt = argv;
1098         int opt, opt_idx, n, i;
1099
1100         while ((opt = getopt_long(argc, argvopt, short_options,
1101                                 lgopts, &opt_idx)) != EOF) {
1102                 switch (opt) {
1103                 case 'i':
1104                         printf("Interactive-mode selected.\n");
1105                         interactive = 1;
1106                         break;
1107                 case OPT_QP_NUM:
1108                         n = atoi(optarg);
1109                         if (n > 0)
1110                                 num_queues = n;
1111                         else
1112                                 rte_exit(EXIT_FAILURE, "q must be > 0.\n");
1113                         break;
1114                 case OPT_BUF_SIZE_NUM:
1115                         n = atoi(optarg);
1116                         if (n > RTE_PKTMBUF_HEADROOM && n <= 0xFFFF)
1117                                 ntb_buf_size = n;
1118                         else
1119                                 rte_exit(EXIT_FAILURE, "buf-size must be > "
1120                                         "%u and < 65536.\n",
1121                                         RTE_PKTMBUF_HEADROOM);
1122                         break;
1123                 case OPT_FWD_MODE_NUM:
1124                         for (i = 0; i < MAX_FWD_MODE; i++) {
1125                                 if (!strcmp(optarg, fwd_mode_s[i])) {
1126                                         fwd_mode = i;
1127                                         break;
1128                                 }
1129                         }
1130                         if (i == MAX_FWD_MODE)
1131                                 rte_exit(EXIT_FAILURE, "Unsupported mode. "
1132                                 "(Should be: file-trans | rxonly | txonly "
1133                                 "| iofwd)\n");
1134                         break;
1135                 case OPT_NB_DESC_NUM:
1136                         n = atoi(optarg);
1137                         if (n >= NTB_MIN_DESC_SIZE && n <= NTB_MAX_DESC_SIZE)
1138                                 nb_desc = n;
1139                         else
1140                                 rte_exit(EXIT_FAILURE, "nb-desc must be within"
1141                                         " [%u, %u].\n", NTB_MIN_DESC_SIZE,
1142                                         NTB_MAX_DESC_SIZE);
1143                         break;
1144                 case OPT_TXFREET_NUM:
1145                         n = atoi(optarg);
1146                         if (n >= 0)
1147                                 tx_free_thresh = n;
1148                         else
1149                                 rte_exit(EXIT_FAILURE, "txfreet must be"
1150                                         " >= 0\n");
1151                         break;
1152                 case OPT_BURST_NUM:
1153                         n = atoi(optarg);
1154                         if (n > 0 && n <= NTB_MAX_PKT_BURST)
1155                                 pkt_burst = n;
1156                         else
1157                                 rte_exit(EXIT_FAILURE, "burst must be within "
1158                                         "(0, %u].\n", NTB_MAX_PKT_BURST);
1159                         break;
1160
1161                 default:
1162                         ntb_usage(prgname);
1163                         rte_exit(EXIT_FAILURE,
1164                                  "Command line is incomplete or incorrect.\n");
1165                         break;
1166                 }
1167         }
1168 }
1169
1170 static void
1171 ntb_mempool_mz_free(__rte_unused struct rte_mempool_memhdr *memhdr,
1172                 void *opaque)
1173 {
1174         const struct rte_memzone *mz = opaque;
1175         rte_memzone_free(mz);
1176 }
1177
1178 static struct rte_mempool *
1179 ntb_mbuf_pool_create(uint16_t mbuf_seg_size, uint32_t nb_mbuf,
1180                      struct ntb_dev_info ntb_info,
1181                      struct ntb_dev_config *ntb_conf,
1182                      unsigned int socket_id)
1183 {
1184         size_t mz_len, total_elt_sz, max_mz_len, left_sz;
1185         struct rte_pktmbuf_pool_private mbp_priv;
1186         char pool_name[RTE_MEMPOOL_NAMESIZE];
1187         char mz_name[RTE_MEMZONE_NAMESIZE];
1188         const struct rte_memzone *mz;
1189         struct rte_mempool *mp;
1190         uint64_t align;
1191         uint32_t mz_id;
1192         int ret;
1193
1194         snprintf(pool_name, sizeof(pool_name), "ntb_mbuf_pool_%u", socket_id);
1195         mp = rte_mempool_create_empty(pool_name, nb_mbuf,
1196                                       (mbuf_seg_size + sizeof(struct rte_mbuf)),
1197                                       MEMPOOL_CACHE_SIZE,
1198                                       sizeof(struct rte_pktmbuf_pool_private),
1199                                       socket_id, 0);
1200         if (mp == NULL)
1201                 return NULL;
1202
1203         mbp_priv.mbuf_data_room_size = mbuf_seg_size;
1204         mbp_priv.mbuf_priv_size = 0;
1205         rte_pktmbuf_pool_init(mp, &mbp_priv);
1206
1207         ntb_conf->mz_list = rte_zmalloc("ntb_memzone_list",
1208                                 sizeof(struct rte_memzone *) *
1209                                 ntb_info.mw_cnt, 0);
1210         if (ntb_conf->mz_list == NULL)
1211                 goto fail;
1212
1213         /* Put ntb header on mw0. */
1214         if (ntb_info.mw_size[0] < ntb_info.ntb_hdr_size) {
1215                 printf("mw0 (size: %" PRIu64 ") is not enough for ntb hdr"
1216                        " (size: %u)\n", ntb_info.mw_size[0],
1217                        ntb_info.ntb_hdr_size);
1218                 goto fail;
1219         }
1220
1221         total_elt_sz = mp->header_size + mp->elt_size + mp->trailer_size;
1222         left_sz = total_elt_sz * nb_mbuf;
1223         for (mz_id = 0; mz_id < ntb_info.mw_cnt; mz_id++) {
1224                 /* If populated mbuf is enough, no need to reserve extra mz. */
1225                 if (!left_sz)
1226                         break;
1227                 snprintf(mz_name, sizeof(mz_name), "ntb_mw_%d", mz_id);
1228                 align = ntb_info.mw_size_align ? ntb_info.mw_size[mz_id] :
1229                         RTE_CACHE_LINE_SIZE;
1230                 /* Reserve ntb header space on memzone 0. */
1231                 max_mz_len = mz_id ? ntb_info.mw_size[mz_id] :
1232                              ntb_info.mw_size[mz_id] - ntb_info.ntb_hdr_size;
1233                 mz_len = left_sz <= max_mz_len ? left_sz :
1234                         (max_mz_len / total_elt_sz * total_elt_sz);
1235                 if (!mz_len)
1236                         continue;
1237                 mz = rte_memzone_reserve_aligned(mz_name, mz_len, socket_id,
1238                                         RTE_MEMZONE_IOVA_CONTIG, align);
1239                 if (mz == NULL) {
1240                         printf("Cannot allocate %" PRIu64 " aligned memzone"
1241                                 " %u\n", align, mz_id);
1242                         goto fail;
1243                 }
1244                 left_sz -= mz_len;
1245
1246                 /* Reserve ntb header space on memzone 0. */
1247                 if (mz_id)
1248                         ret = rte_mempool_populate_iova(mp, mz->addr, mz->iova,
1249                                         mz->len, ntb_mempool_mz_free,
1250                                         (void *)(uintptr_t)mz);
1251                 else
1252                         ret = rte_mempool_populate_iova(mp,
1253                                         (void *)((size_t)mz->addr +
1254                                         ntb_info.ntb_hdr_size),
1255                                         mz->iova + ntb_info.ntb_hdr_size,
1256                                         mz->len - ntb_info.ntb_hdr_size,
1257                                         ntb_mempool_mz_free,
1258                                         (void *)(uintptr_t)mz);
1259                 if (ret < 0) {
1260                         rte_memzone_free(mz);
1261                         rte_mempool_free(mp);
1262                         return NULL;
1263                 }
1264
1265                 ntb_conf->mz_list[mz_id] = mz;
1266         }
1267         if (left_sz) {
1268                 printf("mw space is not enough for mempool.\n");
1269                 goto fail;
1270         }
1271
1272         ntb_conf->mz_num = mz_id;
1273         rte_mempool_obj_iter(mp, rte_pktmbuf_init, NULL);
1274
1275         return mp;
1276 fail:
1277         rte_mempool_free(mp);
1278         return NULL;
1279 }
1280
1281 int
1282 main(int argc, char **argv)
1283 {
1284         struct rte_eth_conf eth_pconf = eth_port_conf;
1285         struct rte_rawdev_info ntb_rawdev_conf;
1286         struct rte_rawdev_info ntb_rawdev_info;
1287         struct rte_eth_dev_info ethdev_info;
1288         struct rte_eth_rxconf eth_rx_conf;
1289         struct rte_eth_txconf eth_tx_conf;
1290         struct ntb_queue_conf ntb_q_conf;
1291         struct ntb_dev_config ntb_conf;
1292         struct ntb_dev_info ntb_info;
1293         uint64_t ntb_link_status;
1294         uint32_t nb_mbuf;
1295         int ret, i;
1296
1297         signal(SIGINT, signal_handler);
1298         signal(SIGTERM, signal_handler);
1299
1300         ret = rte_eal_init(argc, argv);
1301         if (ret < 0)
1302                 rte_exit(EXIT_FAILURE, "Error with EAL initialization.\n");
1303
1304         if (rte_lcore_count() < 2)
1305                 rte_exit(EXIT_FAILURE, "Need at least 2 cores\n");
1306
1307         /* Find 1st ntb rawdev. */
1308         for (i = 0; i < RTE_RAWDEV_MAX_DEVS; i++)
1309                 if (rte_rawdevs[i].driver_name &&
1310                     (strncmp(rte_rawdevs[i].driver_name, "raw_ntb",
1311                     NTB_DRV_NAME_LEN) == 0) && (rte_rawdevs[i].attached == 1))
1312                         break;
1313
1314         if (i == RTE_RAWDEV_MAX_DEVS)
1315                 rte_exit(EXIT_FAILURE, "Cannot find any ntb device.\n");
1316
1317         dev_id = i;
1318
1319         argc -= ret;
1320         argv += ret;
1321
1322         ntb_parse_args(argc, argv);
1323
1324         rte_rawdev_set_attr(dev_id, NTB_QUEUE_SZ_NAME, nb_desc);
1325         printf("Set queue size as %u.\n", nb_desc);
1326         rte_rawdev_set_attr(dev_id, NTB_QUEUE_NUM_NAME, num_queues);
1327         printf("Set queue number as %u.\n", num_queues);
1328         ntb_rawdev_info.dev_private = (rte_rawdev_obj_t)(&ntb_info);
1329         rte_rawdev_info_get(dev_id, &ntb_rawdev_info);
1330
1331         nb_mbuf = nb_desc * num_queues * 2 * 2 + rte_lcore_count() *
1332                   MEMPOOL_CACHE_SIZE;
1333         mbuf_pool = ntb_mbuf_pool_create(ntb_buf_size, nb_mbuf, ntb_info,
1334                                          &ntb_conf, rte_socket_id());
1335         if (mbuf_pool == NULL)
1336                 rte_exit(EXIT_FAILURE, "Cannot create mbuf pool.\n");
1337
1338         ntb_conf.num_queues = num_queues;
1339         ntb_conf.queue_size = nb_desc;
1340         ntb_rawdev_conf.dev_private = (rte_rawdev_obj_t)(&ntb_conf);
1341         ret = rte_rawdev_configure(dev_id, &ntb_rawdev_conf);
1342         if (ret)
1343                 rte_exit(EXIT_FAILURE, "Can't config ntb dev: err=%d, "
1344                         "port=%u\n", ret, dev_id);
1345
1346         ntb_q_conf.tx_free_thresh = tx_free_thresh;
1347         ntb_q_conf.nb_desc = nb_desc;
1348         ntb_q_conf.rx_mp = mbuf_pool;
1349         for (i = 0; i < num_queues; i++) {
1350                 /* Setup rawdev queue */
1351                 ret = rte_rawdev_queue_setup(dev_id, i, &ntb_q_conf);
1352                 if (ret < 0)
1353                         rte_exit(EXIT_FAILURE,
1354                                 "Failed to setup ntb queue %u.\n", i);
1355         }
1356
1357         /* Waiting for peer dev up at most 100s.*/
1358         printf("Checking ntb link status...\n");
1359         for (i = 0; i < 1000; i++) {
1360                 rte_rawdev_get_attr(dev_id, NTB_LINK_STATUS_NAME,
1361                                     &ntb_link_status);
1362                 if (ntb_link_status) {
1363                         printf("Peer dev ready, ntb link up.\n");
1364                         break;
1365                 }
1366                 rte_delay_ms(100);
1367         }
1368         rte_rawdev_get_attr(dev_id, NTB_LINK_STATUS_NAME, &ntb_link_status);
1369         if (ntb_link_status == 0)
1370                 printf("Expire 100s. Link is not up. Please restart app.\n");
1371
1372         ret = rte_rawdev_start(dev_id);
1373         if (ret < 0)
1374                 rte_exit(EXIT_FAILURE, "rte_rawdev_start: err=%d, port=%u\n",
1375                         ret, dev_id);
1376
1377         /* Find 1st ethdev */
1378         eth_port_id = rte_eth_find_next(0);
1379
1380         if (eth_port_id < RTE_MAX_ETHPORTS) {
1381                 rte_eth_dev_info_get(eth_port_id, &ethdev_info);
1382                 eth_pconf.rx_adv_conf.rss_conf.rss_hf &=
1383                                 ethdev_info.flow_type_rss_offloads;
1384                 ret = rte_eth_dev_configure(eth_port_id, num_queues,
1385                                             num_queues, &eth_pconf);
1386                 if (ret)
1387                         rte_exit(EXIT_FAILURE, "Can't config ethdev: err=%d, "
1388                                 "port=%u\n", ret, eth_port_id);
1389                 eth_rx_conf = ethdev_info.default_rxconf;
1390                 eth_rx_conf.offloads = eth_pconf.rxmode.offloads;
1391                 eth_tx_conf = ethdev_info.default_txconf;
1392                 eth_tx_conf.offloads = eth_pconf.txmode.offloads;
1393
1394                 /* Setup ethdev queue if ethdev exists */
1395                 for (i = 0; i < num_queues; i++) {
1396                         ret = rte_eth_rx_queue_setup(eth_port_id, i, nb_desc,
1397                                         rte_eth_dev_socket_id(eth_port_id),
1398                                         &eth_rx_conf, mbuf_pool);
1399                         if (ret < 0)
1400                                 rte_exit(EXIT_FAILURE,
1401                                         "Failed to setup eth rxq %u.\n", i);
1402                         ret = rte_eth_tx_queue_setup(eth_port_id, i, nb_desc,
1403                                         rte_eth_dev_socket_id(eth_port_id),
1404                                         &eth_tx_conf);
1405                         if (ret < 0)
1406                                 rte_exit(EXIT_FAILURE,
1407                                         "Failed to setup eth txq %u.\n", i);
1408                 }
1409
1410                 ret = rte_eth_dev_start(eth_port_id);
1411                 if (ret < 0)
1412                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
1413                                 "port=%u\n", ret, eth_port_id);
1414         }
1415
1416         /* initialize port stats */
1417         memset(&ntb_port_stats, 0, sizeof(ntb_port_stats));
1418
1419         /* Set default fwd mode if user doesn't set it. */
1420         if (fwd_mode == MAX_FWD_MODE && eth_port_id < RTE_MAX_ETHPORTS) {
1421                 printf("Set default fwd mode as iofwd.\n");
1422                 fwd_mode = IOFWD;
1423         }
1424         if (fwd_mode == MAX_FWD_MODE) {
1425                 printf("Set default fwd mode as file-trans.\n");
1426                 fwd_mode = FILE_TRANS;
1427         }
1428
1429         if (interactive) {
1430                 sleep(1);
1431                 prompt();
1432         } else {
1433                 start_pkt_fwd();
1434         }
1435
1436         return 0;
1437 }