app/test-pmd/parameters.c

   1 /*-
   2  *   BSD LICENSE
   3  *
   4  *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
   5  *   All rights reserved.
   6  *
   7  *   Redistribution and use in source and binary forms, with or without
   8  *   modification, are permitted provided that the following conditions
   9  *   are met:
  10  *
  11  *     * Redistributions of source code must retain the above copyright
  12  *       notice, this list of conditions and the following disclaimer.
  13  *     * Redistributions in binary form must reproduce the above copyright
  14  *       notice, this list of conditions and the following disclaimer in
  15  *       the documentation and/or other materials provided with the
  16  *       distribution.
  17  *     * Neither the name of Intel Corporation nor the names of its
  18  *       contributors may be used to endorse or promote products derived
  19  *       from this software without specific prior written permission.
  20  *
  21  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  22  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  23  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  24  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  25  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  26  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  27  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  28  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  29  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  31  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  *
  33  *  version: DPDK.L.1.2.3-3
  34  */
  35
  36 #include <errno.h>
  37 #include <getopt.h>
  38 #include <stdarg.h>
  39 #include <stdio.h>
  40 #include <stdlib.h>
  41 #include <signal.h>
  42 #include <string.h>
  43 #include <time.h>
  44 #include <fcntl.h>
  45 #include <sys/types.h>
  46 #include <errno.h>
  47
  48 #include <sys/queue.h>
  49 #include <sys/stat.h>
  50
  51 #include <stdint.h>
  52 #include <unistd.h>
  53 #include <inttypes.h>
  54
  55 #include <rte_common.h>
  56 #include <rte_byteorder.h>
  57 #include <rte_log.h>
  58 #include <rte_debug.h>
  59 #include <rte_cycles.h>
  60 #include <rte_memory.h>
  61 #include <rte_memzone.h>
  62 #include <rte_launch.h>
  63 #include <rte_tailq.h>
  64 #include <rte_eal.h>
  65 #include <rte_per_lcore.h>
  66 #include <rte_lcore.h>
  67 #include <rte_atomic.h>
  68 #include <rte_branch_prediction.h>
  69 #include <rte_ring.h>
  70 #include <rte_mempool.h>
  71 #include <rte_interrupts.h>
  72 #include <rte_pci.h>
  73 #include <rte_ether.h>
  74 #include <rte_ethdev.h>
  75 #include <rte_string_fns.h>
  76 #include <cmdline_parse.h>
  77 #include <cmdline_parse_etheraddr.h>
  78
  79 #include "testpmd.h"
  80
  81 static void
  82 usage(char* progname)
  83 {
  84         printf("usage: %s [--interactive|-i] [--help|-h] | ["
  85                "--coremask=COREMASK --portmask=PORTMASK --numa "
  86                "--eth-peers-configfile= | "
  87                "--eth-peer=X,M:M:M:M:M:M | --nb-cores= | --nb-ports= | "
  88                "--pkt-filter-mode= |"
  89                "--rss-ip | --rss-udp | "
  90                "--rxpt= | --rxht= | --rxwt= | --rxfreet= | "
  91                "--txpt= | --txht= | --txwt= | --txfreet= | "
  92                "--txrst= ]\n",
  93                progname);
  94         printf("  --interactive: run in interactive mode\n");
  95         printf("  --help:   display this message and quit\n");
  96         printf("  --eth-peers-configfile=name of file with ethernet addresses "
  97                "of peer ports\n");
  98         printf("  --eth-peer=X,M:M:M:M:M:M set the mac address of the X peer "
  99                "port (0 <= X < %d)\n", RTE_MAX_ETHPORTS);
 100         printf("  --nb-cores=N set the number of forwarding cores"
 101                " (1 <= N <= %d)\n", nb_lcores);
 102         printf("  --nb-ports=N set the number of forwarding ports"
 103                " (1 <= N <= %d)\n", nb_ports);
 104         printf("  --coremask=COREMASK: hexadecimal bitmask of cores running "
 105                "the packet forwarding test\n");
 106         printf("  --portmask=PORTMASK: hexadecimal bitmask of ports used "
 107                "by the packet forwarding test\n");
 108         printf("  --numa: enable NUMA-aware allocation of RX/TX rings and of "
 109                " RX memory buffers (mbufs)\n");
 110         printf("  --mbuf-size=N set the data size of mbuf to N bytes\n");
 111         printf("  --max-pkt-len=N set the maximum size of packet to N bytes\n");
 112         printf("  --pkt-filter-mode=N: set Flow director mode "
 113                "( N: none (default mode) or signature or perfect)\n");
 114         printf("  --pkt-filter-report-hash=N: set Flow director report mode "
 115                "( N: none  or match (default) or always)\n");
 116         printf("  --pkt-filter-size=N: set Flow director mode "
 117                "( N: 64K (default mode) or 128K or 256K)\n");
 118         printf("  --pkt-filter-flexbytes-offset=N: set flexbytes-offset."
 119                " The offset is defined in word units counted from the"
 120                " first byte of the destination Ethernet MAC address."
 121                " 0 <= N <= 32\n");
 122         printf("  --pkt-filter-drop-queue=N: set drop-queue."
 123                " In perfect mode, when you add a rule with queue -1"
 124                " the packet will be enqueued into the rx drop-queue."
 125                " If the drop-queue doesn't exist, the packet is dropped."
 126                " By default drop-queue=127\n");
 127         printf("  --crc-strip: enable CRC stripping by hardware\n");
 128         printf("  --enable-rx-cksum: enable rx hardware checksum offload\n");
 129         printf("  --disable-hw-vlan: disable hardware vlan\n");
 130         printf("  --disable-rss: disable rss\n");
 131         printf("  --port-topology=N: set port topology (N: paired (default) or "
 132                "chained)\n");
 133         printf("  --rss-ip:  set RSS functions to IPv4/IPv6 only \n");
 134         printf("  --rss-udp: set RSS functions to IPv4/IPv6 + UDP\n");
 135         printf("  --rxq=N    set the number of RX queues per port to N\n");
 136         printf("  --rxd=N    set the number of descriptors in RX rings to N\n");
 137         printf("  --txq=N    set the number of TX queues per port to N\n");
 138         printf("  --txd=N    set the number of descriptors in TX rings to N\n");
 139         printf("  --burst=N  set the number of packets per burst to N\n");
 140         printf("  --mbcache=N  set the cache of mbuf memory pool to N\n");
 141         printf("  --rxpt=N   set prefetch threshold register of RX rings to N"
 142                " (0 <= N <= 16)\n");
 143         printf("  --rxht=N  set the host threshold register of RX rings to N"
 144                " (0 <= N <= 16)\n");
 145         printf("  --rxfreet=N set the free threshold of RX descriptors to N"
 146                " (0 <= N < value of rxd)\n");
 147         printf("  --rxwt=N  set the write-back threshold register of RX rings"
 148                " to N (0 <= N <= 16)\n");
 149         printf("  --txpt=N  set the prefetch threshold register of TX rings"
 150                " to N (0 <= N <= 16)\n");
 151         printf("  --txht=N  set the nhost threshold register of TX rings to N"
 152                " (0 <= N <= 16)\n");
 153         printf("  --txwt=N  set the write-back threshold register of TX rings"
 154                " to N (0 <= N <= 16)\n");
 155         printf("  --txfreet=N set the transmit free threshold of TX rings to N"
 156                " (0 <= N <= value of txd)\n");
 157         printf("  --txrst=N set the transmit RS bit threshold of TX rings to N"
 158                " (0 <= N <= value of txd)\n");
 159 }
 160
 161 static int
 162 init_peer_eth_addrs(char *config_filename)
 163 {
 164         FILE *config_file;
 165         portid_t i;
 166         char buf[50];
 167
 168         config_file = fopen(config_filename, "r");
 169         if (config_file == NULL) {
 170                 perror("open log file failed\n");
 171                 return -1;
 172         }
 173
 174         for (i = 0; i < RTE_MAX_ETHPORTS; i++) {
 175
 176                 if (fgets(buf, sizeof(buf), config_file) == NULL)
 177                         break;
 178
 179                 if (cmdline_parse_etheraddr(NULL, buf, &peer_eth_addrs[i]) < 0 ){
 180                         printf("bad format of mac address on line %d\n", i);
 181                         fclose(config_file);
 182                         return -1;
 183                 }
 184         }
 185         fclose(config_file);
 186         nb_peer_eth_addrs = (portid_t) i;
 187         return 0;
 188 }
 189
 190 /*
 191  * Parse the coremask given as argument (hexadecimal string) and set
 192  * the global configuration of forwarding cores.
 193  */
 194 static void
 195 parse_fwd_coremask(const char *coremask)
 196 {
 197         char *end;
 198         unsigned long long int cm;
 199
 200         /* parse hexadecimal string */
 201         end = NULL;
 202         cm = strtoull(coremask, &end, 16);
 203         if ((coremask[0] == '\0') || (end == NULL) || (*end != '\0'))
 204                 rte_exit(EXIT_FAILURE, "Invalid fwd core mask\n");
 205         else
 206                 set_fwd_lcores_mask((uint64_t) cm);
 207 }
 208
 209 /*
 210  * Parse the coremask given as argument (hexadecimal string) and set
 211  * the global configuration of forwarding cores.
 212  */
 213 static void
 214 parse_fwd_portmask(const char *portmask)
 215 {
 216         char *end;
 217         unsigned long long int pm;
 218
 219         /* parse hexadecimal string */
 220         end = NULL;
 221         pm = strtoull(portmask, &end, 16);
 222         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
 223                 rte_exit(EXIT_FAILURE, "Invalid fwd port mask\n");
 224         else
 225                 set_fwd_ports_mask((uint64_t) pm);
 226 }
 227
 228 void
 229 launch_args_parse(int argc, char** argv)
 230 {
 231         int n, opt;
 232         char **argvopt;
 233         int opt_idx;
 234         static struct option lgopts[] = {
 235                 { "help",                       0, 0, 0 },
 236                 { "interactive",                0, 0, 0 },
 237                 { "eth-peers-configfile",       1, 0, 0 },
 238                 { "eth-peer",                   1, 0, 0 },
 239                 { "ports",                      1, 0, 0 },
 240                 { "nb-cores",                   1, 0, 0 },
 241                 { "nb-ports",                   1, 0, 0 },
 242                 { "coremask",                   1, 0, 0 },
 243                 { "portmask",                   1, 0, 0 },
 244                 { "numa",                       0, 0, 0 },
 245                 { "mbuf-size",                  1, 0, 0 },
 246                 { "max-pkt-len",                1, 0, 0 },
 247                 { "pkt-filter-mode",            1, 0, 0 },
 248                 { "pkt-filter-report-hash",     1, 0, 0 },
 249                 { "pkt-filter-size",            1, 0, 0 },
 250                 { "pkt-filter-flexbytes-offset",1, 0, 0 },
 251                 { "pkt-filter-drop-queue",      1, 0, 0 },
 252                 { "crc-strip",                  0, 0, 0 },
 253                 { "disable-hw-vlan",            0, 0, 0 },
 254                 { "disable-rss",                0, 0, 0 },
 255                 { "port-topology",              1, 0, 0 },
 256                 { "rss-ip",                     0, 0, 0 },
 257                 { "rss-udp",                    0, 0, 0 },
 258                 { "rxq",                        1, 0, 0 },
 259                 { "txq",                        1, 0, 0 },
 260                 { "rxd",                        1, 0, 0 },
 261                 { "txd",                        1, 0, 0 },
 262                 { "burst",                      1, 0, 0 },
 263                 { "mbcache",                    1, 0, 0 },
 264                 { "txpt",                       1, 0, 0 },
 265                 { "txht",                       1, 0, 0 },
 266                 { "txwt",                       1, 0, 0 },
 267                 { "txfreet",                    1, 0, 0 },
 268                 { "txrst",                      1, 0, 0 },
 269                 { "rxpt",                       1, 0, 0 },
 270                 { "rxht",                       1, 0, 0 },
 271                 { "rxwt",                       1, 0, 0 },
 272                 { "rxfreet",                    1, 0, 0 },
 273                 { 0, 0, 0, 0 },
 274         };
 275
 276         argvopt = argv;
 277
 278         while ((opt = getopt_long(argc, argvopt, "ih",
 279                                  lgopts, &opt_idx)) != EOF) {
 280                 switch (opt) {
 281                 case 'i':
 282                         printf("Interactive-mode selected\n");
 283                         interactive = 1;
 284                         break;
 285                 case 0: /*long options */
 286                         if (!strcmp(lgopts[opt_idx].name, "help")) {
 287                                 usage(argv[0]);
 288                                 rte_exit(EXIT_SUCCESS, "Displayed help\n");
 289                         }
 290                         if (!strcmp(lgopts[opt_idx].name, "interactive")) {
 291                                 printf("Interactive-mode selected\n");
 292                                 interactive = 1;
 293                         }
 294                         if (!strcmp(lgopts[opt_idx].name,
 295                                     "eth-peers-configfile")) {
 296                                 if (init_peer_eth_addrs(optarg) != 0)
 297                                         rte_exit(EXIT_FAILURE,
 298                                                  "Cannot open logfile\n");
 299                         }
 300                         if (!strcmp(lgopts[opt_idx].name, "eth-peer")) {
 301                                 char *port_end;
 302                                 uint8_t c, peer_addr[6];
 303
 304                                 errno = 0;
 305                                 n = strtoul(optarg, &port_end, 10);
 306                                 if (errno != 0 || port_end == optarg || *port_end++ != ',')
 307                                         rte_exit(EXIT_FAILURE,
 308                                                  "Invalid eth-peer: %s", optarg);
 309                                 if (n >= RTE_MAX_ETHPORTS)
 310                                         rte_exit(EXIT_FAILURE,
 311                                                  "eth-peer: port %d >= RTE_MAX_ETHPORTS(%d)\n",
 312                                                  n, RTE_MAX_ETHPORTS);
 313
 314                                 if (cmdline_parse_etheraddr(NULL, port_end, &peer_addr) < 0 )
 315                                         rte_exit(EXIT_FAILURE,
 316                                                  "Invalid ethernet address: %s\n",
 317                                                  port_end);
 318                                 for (c = 0; c < 6; c++)
 319                                         peer_eth_addrs[n].addr_bytes[c] =
 320                                                 peer_addr[c];
 321                                 nb_peer_eth_addrs++;
 322                         }
 323                         if (!strcmp(lgopts[opt_idx].name, "nb-ports")) {
 324                                 n = atoi(optarg);
 325                                 if (n > 0 && n <= nb_ports)
 326                                         nb_fwd_ports = (uint8_t) n;
 327                                 else
 328                                         rte_exit(EXIT_FAILURE,
 329                                                  "nb-ports should be > 0 and <= %d\n",
 330                                                  nb_ports);
 331                         }
 332                         if (!strcmp(lgopts[opt_idx].name, "nb-cores")) {
 333                                 n = atoi(optarg);
 334                                 if (n > 0 && n <= nb_lcores)
 335                                         nb_fwd_lcores = (uint8_t) n;
 336                                 else
 337                                         rte_exit(EXIT_FAILURE,
 338                                                  "nb-cores should be > 0 and <= %d\n",
 339                                                  nb_lcores);
 340                         }
 341                         if (!strcmp(lgopts[opt_idx].name, "coremask"))
 342                                 parse_fwd_coremask(optarg);
 343                         if (!strcmp(lgopts[opt_idx].name, "portmask"))
 344                                 parse_fwd_portmask(optarg);
 345                         if (!strcmp(lgopts[opt_idx].name, "numa"))
 346                                 numa_support = 1;
 347                         if (!strcmp(lgopts[opt_idx].name, "mbuf-size")) {
 348                                 n = atoi(optarg);
 349                                 if (n > 0 && n <= 0xFFFF)
 350                                         mbuf_data_size = (uint16_t) n;
 351                                 else
 352                                         rte_exit(EXIT_FAILURE,
 353                                                  "mbuf-size should be > 0 and < 65536\n");
 354                         }
 355                         if (!strcmp(lgopts[opt_idx].name, "max-pkt-len")) {
 356                                 n = atoi(optarg);
 357                                 if (n >= ETHER_MIN_LEN) {
 358                                         rx_mode.max_rx_pkt_len = (uint32_t) n;
 359                                         if (n > ETHER_MAX_LEN)
 360                                             rx_mode.jumbo_frame = 1;
 361                                 } else
 362                                         rte_exit(EXIT_FAILURE,
 363                                                  "Invalid max-pkt-len=%d - should be > %d\n",
 364                                                  n, ETHER_MIN_LEN);
 365                         }
 366                         if (!strcmp(lgopts[opt_idx].name, "pkt-filter-mode")) {
 367                                 if (!strcmp(optarg, "signature"))
 368                                         fdir_conf.mode =
 369                                                 RTE_FDIR_MODE_SIGNATURE;
 370                                 else if (!strcmp(optarg, "perfect"))
 371                                         fdir_conf.mode = RTE_FDIR_MODE_PERFECT;
 372                                 else if (!strcmp(optarg, "none"))
 373                                         fdir_conf.mode = RTE_FDIR_MODE_NONE;
 374                                 else
 375                                         rte_exit(EXIT_FAILURE,
 376                                                  "pkt-mode-invalid %s invalid - must be: "
 377                                                  "none, signature or perfect\n",
 378                                                  optarg);
 379                         }
 380                         if (!strcmp(lgopts[opt_idx].name,
 381                                     "pkt-filter-report-hash")) {
 382                                 if (!strcmp(optarg, "none"))
 383                                         fdir_conf.status =
 384                                                 RTE_FDIR_NO_REPORT_STATUS;
 385                                 else if (!strcmp(optarg, "match"))
 386                                         fdir_conf.status =
 387                                                 RTE_FDIR_REPORT_STATUS;
 388                                 else if (!strcmp(optarg, "always"))
 389                                         fdir_conf.status =
 390                                                 RTE_FDIR_REPORT_STATUS_ALWAYS;
 391                                 else
 392                                         rte_exit(EXIT_FAILURE,
 393                                                  "pkt-filter-report-hash %s invalid "
 394                                                  "- must be: none or match or always\n",
 395                                                  optarg);
 396                         }
 397                         if (!strcmp(lgopts[opt_idx].name, "pkt-filter-size")) {
 398                                 if (!strcmp(optarg, "64K"))
 399                                         fdir_conf.pballoc =
 400                                                 RTE_FDIR_PBALLOC_64K;
 401                                 else if (!strcmp(optarg, "128K"))
 402                                         fdir_conf.pballoc =
 403                                                 RTE_FDIR_PBALLOC_128K;
 404                                 else if (!strcmp(optarg, "256K"))
 405                                         fdir_conf.pballoc =
 406                                                 RTE_FDIR_PBALLOC_256K;
 407                                 else
 408                                         rte_exit(EXIT_FAILURE, "pkt-filter-size %s invalid -"
 409                                                  " must be: 64K or 128K or 256K\n",
 410                                                  optarg);
 411                         }
 412                         if (!strcmp(lgopts[opt_idx].name,
 413                                     "pkt-filter-flexbytes-offset")) {
 414                                 n = atoi(optarg);
 415                                 if ( n >= 0 && n <= (int) 32)
 416                                         fdir_conf.flexbytes_offset =
 417                                                 (uint8_t) n;
 418                                 else
 419                                         rte_exit(EXIT_FAILURE,
 420                                                  "flexbytes %d invalid - must"
 421                                                  "be  >= 0 && <= 32\n", n);
 422                         }
 423                         if (!strcmp(lgopts[opt_idx].name,
 424                                     "pkt-filter-drop-queue")) {
 425                                 n = atoi(optarg);
 426                                 if (n >= 0)
 427                                         fdir_conf.drop_queue = (uint8_t) n;
 428                                 else
 429                                         rte_exit(EXIT_FAILURE,
 430                                                  "drop queue %d invalid - must"
 431                                                  "be >= 0 \n", n);
 432                         }
 433                         if (!strcmp(lgopts[opt_idx].name, "crc-strip"))
 434                                 rx_mode.hw_strip_crc = 1;
 435                         if (!strcmp(lgopts[opt_idx].name, "enable-rx-cksum"))
 436                                 rx_mode.hw_ip_checksum = 1;
 437                         if (!strcmp(lgopts[opt_idx].name, "disable-hw-vlan"))
 438                                 rx_mode.hw_vlan_filter = 0;
 439                         if (!strcmp(lgopts[opt_idx].name, "disable-rss"))
 440                                 rss_hf = 0;
 441                         if (!strcmp(lgopts[opt_idx].name, "port-topology")) {
 442                                 if (!strcmp(optarg, "paired"))
 443                                         port_topology = PORT_TOPOLOGY_PAIRED;
 444                                 else if (!strcmp(optarg, "chained"))
 445                                         port_topology = PORT_TOPOLOGY_CHAINED;
 446                                 else
 447                                         rte_exit(EXIT_FAILURE, "port-topology %s invalid -"
 448                                                  " must be: paired or chained \n",
 449                                                  optarg);
 450                         }
 451                         if (!strcmp(lgopts[opt_idx].name, "rss-ip"))
 452                                 rss_hf = ETH_RSS_IPV4 | ETH_RSS_IPV6;
 453                         if (!strcmp(lgopts[opt_idx].name, "rss-udp"))
 454                                 rss_hf = ETH_RSS_IPV4 | ETH_RSS_IPV6 |
 455                                         ETH_RSS_IPV4_UDP;
 456                         if (!strcmp(lgopts[opt_idx].name, "rxq")) {
 457                                 n = atoi(optarg);
 458                                 if (n >= 1 && n <= (int) MAX_QUEUE_ID)
 459                                         nb_rxq = (queueid_t) n;
 460                                 else
 461                                         rte_exit(EXIT_FAILURE, "rxq %d invalid - must be"
 462                                                   " >= 1 && <= %d\n", n,
 463                                                   (int) MAX_QUEUE_ID);
 464                         }
 465                         if (!strcmp(lgopts[opt_idx].name, "txq")) {
 466                                 n = atoi(optarg);
 467                                 if (n >= 1 && n <= (int) MAX_QUEUE_ID)
 468                                         nb_txq = (queueid_t) n;
 469                                 else
 470                                         rte_exit(EXIT_FAILURE, "txq %d invalid - must be"
 471                                                   " >= 1 && <= %d\n", n,
 472                                                   (int) MAX_QUEUE_ID);
 473                         }
 474                         if (!strcmp(lgopts[opt_idx].name, "rxd")) {
 475                                 n = atoi(optarg);
 476                                 if (n > 0)
 477                                         nb_rxd = (uint16_t) n;
 478                                 else
 479                                         rte_exit(EXIT_FAILURE, "rxd must be > 0\n");
 480                         }
 481                         if (!strcmp(lgopts[opt_idx].name, "txd")) {
 482                                 n = atoi(optarg);
 483                                 if (n > 0)
 484                                         nb_txd = (uint16_t) n;
 485                                 else
 486                                         rte_exit(EXIT_FAILURE, "txd must be in > 0\n");
 487                         }
 488                         if (!strcmp(lgopts[opt_idx].name, "burst")) {
 489                                 n = atoi(optarg);
 490                                 if ((n >= 1) && (n <= MAX_PKT_BURST))
 491                                         nb_pkt_per_burst = (uint16_t) n;
 492                                 else
 493                                         rte_exit(EXIT_FAILURE,
 494                                                  "burst must >= 1 and <= %d]",
 495                                                  MAX_PKT_BURST);
 496                         }
 497                         if (!strcmp(lgopts[opt_idx].name, "mbcache")) {
 498                                 n = atoi(optarg);
 499                                 if ((n >= 0) &&
 500                                     (n <= RTE_MEMPOOL_CACHE_MAX_SIZE))
 501                                         mb_mempool_cache = (uint16_t) n;
 502                                 else
 503                                         rte_exit(EXIT_FAILURE,
 504                                                  "mbcache must be >= 0 and <= %d\n",
 505                                                  RTE_MEMPOOL_CACHE_MAX_SIZE);
 506                         }
 507                         if (!strcmp(lgopts[opt_idx].name, "txpt")) {
 508                                 n = atoi(optarg);
 509                                 if (n >= 0)
 510                                         tx_thresh.pthresh = (uint8_t)n;
 511                                 else
 512                                         rte_exit(EXIT_FAILURE, "txpt must be >= 0\n");
 513                         }
 514                         if (!strcmp(lgopts[opt_idx].name, "txht")) {
 515                                 n = atoi(optarg);
 516                                 if (n >= 0)
 517                                         tx_thresh.hthresh = (uint8_t)n;
 518                                 else
 519                                         rte_exit(EXIT_FAILURE, "txht must be >= 0\n");
 520                         }
 521                         if (!strcmp(lgopts[opt_idx].name, "txwt")) {
 522                                 n = atoi(optarg);
 523                                 if (n >= 0)
 524                                         tx_thresh.wthresh = (uint8_t)n;
 525                                 else
 526                                         rte_exit(EXIT_FAILURE, "txwt must be >= 0\n");
 527                         }
 528                         if (!strcmp(lgopts[opt_idx].name, "txfreet")) {
 529                                 n = atoi(optarg);
 530                                 if (n >= 0)
 531                                         tx_free_thresh = (uint16_t)n;
 532                                 else
 533                                         rte_exit(EXIT_FAILURE, "txfreet must be >= 0\n");
 534                         }
 535                         if (!strcmp(lgopts[opt_idx].name, "txrst")) {
 536                                 n = atoi(optarg);
 537                                 if (n >= 0)
 538                                         tx_rs_thresh = (uint16_t)n;
 539                                 else
 540                                         rte_exit(EXIT_FAILURE, "txrst must be >= 0\n");
 541                         }
 542                         if (!strcmp(lgopts[opt_idx].name, "rxpt")) {
 543                                 n = atoi(optarg);
 544                                 if (n >= 0)
 545                                         rx_thresh.pthresh = (uint8_t)n;
 546                                 else
 547                                         rte_exit(EXIT_FAILURE, "rxpt must be >= 0\n");
 548                         }
 549                         if (!strcmp(lgopts[opt_idx].name, "rxht")) {
 550                                 n = atoi(optarg);
 551                                 if (n >= 0)
 552                                         rx_thresh.hthresh = (uint8_t)n;
 553                                 else
 554                                         rte_exit(EXIT_FAILURE, "rxht must be >= 0\n");
 555                         }
 556                         if (!strcmp(lgopts[opt_idx].name, "rxwt")) {
 557                                 n = atoi(optarg);
 558                                 if (n >= 0)
 559                                         rx_thresh.wthresh = (uint8_t)n;
 560                                 else
 561                                         rte_exit(EXIT_FAILURE, "rxwt must be >= 0\n");
 562                         }
 563                         if (!strcmp(lgopts[opt_idx].name, "rxd")) {
 564                                 n = atoi(optarg);
 565                                 if (n > 0) {
 566                                         if (rx_free_thresh >= n)
 567                                                 rte_exit(EXIT_FAILURE,
 568                                                          "rxd must be > "
 569                                                          "rx_free_thresh(%d)\n",
 570                                                          (int)rx_free_thresh);
 571                                         else
 572                                                 nb_rxd = (uint16_t) n;
 573                                 } else
 574                                         rte_exit(EXIT_FAILURE,
 575                                                  "rxd(%d) invalid - must be > 0\n",
 576                                                  n);
 577                         }
 578                         if (!strcmp(lgopts[opt_idx].name, "txd")) {
 579                                 n = atoi(optarg);
 580                                 if (n > 0)
 581                                         nb_txd = (uint16_t) n;
 582                                 else
 583                                         rte_exit(EXIT_FAILURE, "txd must be in > 0\n");
 584                         }
 585                         if (!strcmp(lgopts[opt_idx].name, "txpt")) {
 586                                 n = atoi(optarg);
 587                                 if (n >= 0)
 588                                         tx_thresh.pthresh = (uint8_t)n;
 589                                 else
 590                                         rte_exit(EXIT_FAILURE, "txpt must be >= 0\n");
 591                         }
 592                         if (!strcmp(lgopts[opt_idx].name, "txht")) {
 593                                 n = atoi(optarg);
 594                                 if (n >= 0)
 595                                         tx_thresh.hthresh = (uint8_t)n;
 596                                 else
 597                                         rte_exit(EXIT_FAILURE, "txht must be >= 0\n");
 598                         }
 599                         if (!strcmp(lgopts[opt_idx].name, "txwt")) {
 600                                 n = atoi(optarg);
 601                                 if (n >= 0)
 602                                         tx_thresh.wthresh = (uint8_t)n;
 603                                 else
 604                                         rte_exit(EXIT_FAILURE, "txwt must be >= 0\n");
 605                         }
 606                         if (!strcmp(lgopts[opt_idx].name, "rxpt")) {
 607                                 n = atoi(optarg);
 608                                 if (n >= 0)
 609                                         rx_thresh.pthresh = (uint8_t)n;
 610                                 else
 611                                         rte_exit(EXIT_FAILURE, "rxpt must be >= 0\n");
 612                         }
 613                         if (!strcmp(lgopts[opt_idx].name, "rxht")) {
 614                                 n = atoi(optarg);
 615                                 if (n >= 0)
 616                                         rx_thresh.hthresh = (uint8_t)n;
 617                                 else
 618                                         rte_exit(EXIT_FAILURE, "rxht must be >= 0\n");
 619                         }
 620                         if (!strcmp(lgopts[opt_idx].name, "rxwt")) {
 621                                 n = atoi(optarg);
 622                                 if (n >= 0)
 623                                         rx_thresh.wthresh = (uint8_t)n;
 624                                 else
 625                                         rte_exit(EXIT_FAILURE, "rxwt must be >= 0\n");
 626                         }
 627                         if (!strcmp(lgopts[opt_idx].name, "rxfreet")) {
 628                                 n = atoi(optarg);
 629                                 if (n >= 0)
 630                                         rx_free_thresh = (uint16_t)n;
 631                                 else
 632                                         rte_exit(EXIT_FAILURE, "rxfreet must be >= 0\n");
 633                         }
 634                         break;
 635                 case 'h':
 636                         usage(argv[0]);
 637                         rte_exit(EXIT_SUCCESS, "Displayed help\n");
 638                         break;
 639                 default:
 640                         usage(argv[0]);
 641                         rte_exit(EXIT_FAILURE,
 642                                  "Command line is incomplete or incorrect\n");
 643                         break;
 644                 }
 645         }
 646 }