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