examples/performance-thread/l3fwd-thread/main.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2016 Intel Corporation
   3  */
   4
   5 #define _GNU_SOURCE
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <stdint.h>
  10 #include <inttypes.h>
  11 #include <sys/types.h>
  12 #include <string.h>
  13 #include <sys/queue.h>
  14 #include <stdarg.h>
  15 #include <errno.h>
  16 #include <getopt.h>
  17
  18 #include <rte_common.h>
  19 #include <rte_vect.h>
  20 #include <rte_byteorder.h>
  21 #include <rte_log.h>
  22 #include <rte_memory.h>
  23 #include <rte_memcpy.h>
  24 #include <rte_eal.h>
  25 #include <rte_launch.h>
  26 #include <rte_atomic.h>
  27 #include <rte_cycles.h>
  28 #include <rte_prefetch.h>
  29 #include <rte_lcore.h>
  30 #include <rte_per_lcore.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_interrupts.h>
  33 #include <rte_random.h>
  34 #include <rte_debug.h>
  35 #include <rte_ether.h>
  36 #include <rte_ethdev.h>
  37 #include <rte_ring.h>
  38 #include <rte_mempool.h>
  39 #include <rte_mbuf.h>
  40 #include <rte_ip.h>
  41 #include <rte_tcp.h>
  42 #include <rte_udp.h>
  43 #include <rte_string_fns.h>
  44 #include <rte_pause.h>
  45
  46 #include <cmdline_parse.h>
  47 #include <cmdline_parse_etheraddr.h>
  48
  49 #include <lthread_api.h>
  50
  51 #define APP_LOOKUP_EXACT_MATCH          0
  52 #define APP_LOOKUP_LPM                  1
  53 #define DO_RFC_1812_CHECKS
  54
  55 /* Enable cpu-load stats 0-off, 1-on */
  56 #define APP_CPU_LOAD                 1
  57
  58 #ifndef APP_LOOKUP_METHOD
  59 #define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
  60 #endif
  61
  62 #ifndef __GLIBC__ /* sched_getcpu() is glibc specific */
  63 #define sched_getcpu() rte_lcore_id()
  64 #endif
  65
  66 static int
  67 check_ptype(int portid)
  68 {
  69         int i, ret;
  70         int ipv4 = 0, ipv6 = 0;
  71
  72         ret = rte_eth_dev_get_supported_ptypes(portid, RTE_PTYPE_L3_MASK, NULL,
  73                         0);
  74         if (ret <= 0)
  75                 return 0;
  76
  77         uint32_t ptypes[ret];
  78
  79         ret = rte_eth_dev_get_supported_ptypes(portid, RTE_PTYPE_L3_MASK,
  80                         ptypes, ret);
  81         for (i = 0; i < ret; ++i) {
  82                 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
  83                         ipv4 = 1;
  84                 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
  85                         ipv6 = 1;
  86         }
  87
  88         if (ipv4 && ipv6)
  89                 return 1;
  90
  91         return 0;
  92 }
  93
  94 static inline void
  95 parse_ptype(struct rte_mbuf *m)
  96 {
  97         struct ether_hdr *eth_hdr;
  98         uint32_t packet_type = RTE_PTYPE_UNKNOWN;
  99         uint16_t ether_type;
 100
 101         eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
 102         ether_type = eth_hdr->ether_type;
 103         if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4))
 104                 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
 105         else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6))
 106                 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
 107
 108         m->packet_type = packet_type;
 109 }
 110
 111 static uint16_t
 112 cb_parse_ptype(__rte_unused uint16_t port, __rte_unused uint16_t queue,
 113                 struct rte_mbuf *pkts[], uint16_t nb_pkts,
 114                 __rte_unused uint16_t max_pkts, __rte_unused void *user_param)
 115 {
 116         unsigned int i;
 117
 118         for (i = 0; i < nb_pkts; i++)
 119                 parse_ptype(pkts[i]);
 120
 121         return nb_pkts;
 122 }
 123
 124 /*
 125  *  When set to zero, simple forwaring path is eanbled.
 126  *  When set to one, optimized forwarding path is enabled.
 127  *  Note that LPM optimisation path uses SSE4.1 instructions.
 128  */
 129 #define ENABLE_MULTI_BUFFER_OPTIMIZE    1
 130
 131 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 132 #include <rte_hash.h>
 133 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 134 #include <rte_lpm.h>
 135 #include <rte_lpm6.h>
 136 #else
 137 #error "APP_LOOKUP_METHOD set to incorrect value"
 138 #endif
 139
 140 #define RTE_LOGTYPE_L3FWD RTE_LOGTYPE_USER1
 141
 142 #define MAX_JUMBO_PKT_LEN  9600
 143
 144 #define IPV6_ADDR_LEN 16
 145
 146 #define MEMPOOL_CACHE_SIZE 256
 147
 148 /*
 149  * This expression is used to calculate the number of mbufs needed depending on
 150  * user input, taking into account memory for rx and tx hardware rings, cache
 151  * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
 152  * NB_MBUF never goes below a minimum value of 8192
 153  */
 154
 155 #define NB_MBUF RTE_MAX(\
 156                 (nb_ports*nb_rx_queue*nb_rxd +      \
 157                 nb_ports*nb_lcores*MAX_PKT_BURST +  \
 158                 nb_ports*n_tx_queue*nb_txd +        \
 159                 nb_lcores*MEMPOOL_CACHE_SIZE),      \
 160                 (unsigned)8192)
 161
 162 #define MAX_PKT_BURST     32
 163 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 164
 165 /*
 166  * Try to avoid TX buffering if we have at least MAX_TX_BURST packets to send.
 167  */
 168 #define MAX_TX_BURST  (MAX_PKT_BURST / 2)
 169 #define BURST_SIZE    MAX_TX_BURST
 170
 171 #define NB_SOCKETS 8
 172
 173 /* Configure how many packets ahead to prefetch, when reading packets */
 174 #define PREFETCH_OFFSET 3
 175
 176 /* Used to mark destination port as 'invalid'. */
 177 #define BAD_PORT        ((uint16_t)-1)
 178
 179 #define FWDSTEP 4
 180
 181 /*
 182  * Configurable number of RX/TX ring descriptors
 183  */
 184 #define RTE_TEST_RX_DESC_DEFAULT 1024
 185 #define RTE_TEST_TX_DESC_DEFAULT 1024
 186 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 187 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 188
 189 /* ethernet addresses of ports */
 190 static uint64_t dest_eth_addr[RTE_MAX_ETHPORTS];
 191 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 192
 193 static xmm_t val_eth[RTE_MAX_ETHPORTS];
 194
 195 /* replace first 12B of the ethernet header. */
 196 #define MASK_ETH 0x3f
 197
 198 /* mask of enabled ports */
 199 static uint32_t enabled_port_mask;
 200 static int promiscuous_on; /**< Set in promiscuous mode off by default. */
 201 static int numa_on = 1;    /**< NUMA is enabled by default. */
 202 static int parse_ptype_on;
 203
 204 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 205 static int ipv6;           /**< ipv6 is false by default. */
 206 #endif
 207
 208 #if (APP_CPU_LOAD == 1)
 209
 210 #define MAX_CPU RTE_MAX_LCORE
 211 #define CPU_LOAD_TIMEOUT_US (5 * 1000 * 1000)  /**< Timeout for collecting 5s */
 212
 213 #define CPU_PROCESS     0
 214 #define CPU_POLL        1
 215 #define MAX_CPU_COUNTER 2
 216
 217 struct cpu_load {
 218         uint16_t       n_cpu;
 219         uint64_t       counter;
 220         uint64_t       hits[MAX_CPU_COUNTER][MAX_CPU];
 221 } __rte_cache_aligned;
 222
 223 static struct cpu_load cpu_load;
 224 static int cpu_load_lcore_id = -1;
 225
 226 #define SET_CPU_BUSY(thread, counter) \
 227                 thread->conf.busy[counter] = 1
 228
 229 #define SET_CPU_IDLE(thread, counter) \
 230                 thread->conf.busy[counter] = 0
 231
 232 #define IS_CPU_BUSY(thread, counter) \
 233                 (thread->conf.busy[counter] > 0)
 234
 235 #else
 236
 237 #define SET_CPU_BUSY(thread, counter)
 238 #define SET_CPU_IDLE(thread, counter)
 239 #define IS_CPU_BUSY(thread, counter) 0
 240
 241 #endif
 242
 243 struct mbuf_table {
 244         uint16_t len;
 245         struct rte_mbuf *m_table[MAX_PKT_BURST];
 246 };
 247
 248 struct lcore_rx_queue {
 249         uint16_t port_id;
 250         uint8_t queue_id;
 251 } __rte_cache_aligned;
 252
 253 #define MAX_RX_QUEUE_PER_LCORE 16
 254 #define MAX_TX_QUEUE_PER_PORT  RTE_MAX_ETHPORTS
 255 #define MAX_RX_QUEUE_PER_PORT  128
 256
 257 #define MAX_LCORE_PARAMS       1024
 258 struct rx_thread_params {
 259         uint16_t port_id;
 260         uint8_t queue_id;
 261         uint8_t lcore_id;
 262         uint8_t thread_id;
 263 } __rte_cache_aligned;
 264
 265 static struct rx_thread_params rx_thread_params_array[MAX_LCORE_PARAMS];
 266 static struct rx_thread_params rx_thread_params_array_default[] = {
 267         {0, 0, 2, 0},
 268         {0, 1, 2, 1},
 269         {0, 2, 2, 2},
 270         {1, 0, 2, 3},
 271         {1, 1, 2, 4},
 272         {1, 2, 2, 5},
 273         {2, 0, 2, 6},
 274         {3, 0, 3, 7},
 275         {3, 1, 3, 8},
 276 };
 277
 278 static struct rx_thread_params *rx_thread_params =
 279                 rx_thread_params_array_default;
 280 static uint16_t nb_rx_thread_params = RTE_DIM(rx_thread_params_array_default);
 281
 282 struct tx_thread_params {
 283         uint8_t lcore_id;
 284         uint8_t thread_id;
 285 } __rte_cache_aligned;
 286
 287 static struct tx_thread_params tx_thread_params_array[MAX_LCORE_PARAMS];
 288 static struct tx_thread_params tx_thread_params_array_default[] = {
 289         {4, 0},
 290         {5, 1},
 291         {6, 2},
 292         {7, 3},
 293         {8, 4},
 294         {9, 5},
 295         {10, 6},
 296         {11, 7},
 297         {12, 8},
 298 };
 299
 300 static struct tx_thread_params *tx_thread_params =
 301                 tx_thread_params_array_default;
 302 static uint16_t nb_tx_thread_params = RTE_DIM(tx_thread_params_array_default);
 303
 304 static struct rte_eth_conf port_conf = {
 305         .rxmode = {
 306                 .mq_mode = ETH_MQ_RX_RSS,
 307                 .max_rx_pkt_len = ETHER_MAX_LEN,
 308                 .split_hdr_size = 0,
 309                 .ignore_offload_bitfield = 1,
 310                 .offloads = (DEV_RX_OFFLOAD_CHECKSUM |
 311                              DEV_RX_OFFLOAD_CRC_STRIP),
 312         },
 313         .rx_adv_conf = {
 314                 .rss_conf = {
 315                         .rss_key = NULL,
 316                         .rss_hf = ETH_RSS_TCP,
 317                 },
 318         },
 319         .txmode = {
 320                 .mq_mode = ETH_MQ_TX_NONE,
 321         },
 322 };
 323
 324 static struct rte_mempool *pktmbuf_pool[NB_SOCKETS];
 325
 326 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 327
 328 #include <rte_hash_crc.h>
 329 #define DEFAULT_HASH_FUNC       rte_hash_crc
 330
 331 struct ipv4_5tuple {
 332         uint32_t ip_dst;
 333         uint32_t ip_src;
 334         uint16_t port_dst;
 335         uint16_t port_src;
 336         uint8_t  proto;
 337 } __attribute__((__packed__));
 338
 339 union ipv4_5tuple_host {
 340         struct {
 341                 uint8_t  pad0;
 342                 uint8_t  proto;
 343                 uint16_t pad1;
 344                 uint32_t ip_src;
 345                 uint32_t ip_dst;
 346                 uint16_t port_src;
 347                 uint16_t port_dst;
 348         };
 349         __m128i xmm;
 350 };
 351
 352 #define XMM_NUM_IN_IPV6_5TUPLE 3
 353
 354 struct ipv6_5tuple {
 355         uint8_t  ip_dst[IPV6_ADDR_LEN];
 356         uint8_t  ip_src[IPV6_ADDR_LEN];
 357         uint16_t port_dst;
 358         uint16_t port_src;
 359         uint8_t  proto;
 360 } __attribute__((__packed__));
 361
 362 union ipv6_5tuple_host {
 363         struct {
 364                 uint16_t pad0;
 365                 uint8_t  proto;
 366                 uint8_t  pad1;
 367                 uint8_t  ip_src[IPV6_ADDR_LEN];
 368                 uint8_t  ip_dst[IPV6_ADDR_LEN];
 369                 uint16_t port_src;
 370                 uint16_t port_dst;
 371                 uint64_t reserve;
 372         };
 373         __m128i xmm[XMM_NUM_IN_IPV6_5TUPLE];
 374 };
 375
 376 struct ipv4_l3fwd_route {
 377         struct ipv4_5tuple key;
 378         uint8_t if_out;
 379 };
 380
 381 struct ipv6_l3fwd_route {
 382         struct ipv6_5tuple key;
 383         uint8_t if_out;
 384 };
 385
 386 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 387         {{IPv4(101, 0, 0, 0), IPv4(100, 10, 0, 1),  101, 11, IPPROTO_TCP}, 0},
 388         {{IPv4(201, 0, 0, 0), IPv4(200, 20, 0, 1),  102, 12, IPPROTO_TCP}, 1},
 389         {{IPv4(111, 0, 0, 0), IPv4(100, 30, 0, 1),  101, 11, IPPROTO_TCP}, 2},
 390         {{IPv4(211, 0, 0, 0), IPv4(200, 40, 0, 1),  102, 12, IPPROTO_TCP}, 3},
 391 };
 392
 393 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 394         {{
 395         {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
 396         {0xfe, 0x80, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38,
 397                         0x05},
 398         101, 11, IPPROTO_TCP}, 0},
 399
 400         {{
 401         {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
 402         {0xfe, 0x90, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38,
 403                         0x05},
 404         102, 12, IPPROTO_TCP}, 1},
 405
 406         {{
 407         {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
 408         {0xfe, 0xa0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38,
 409                         0x05},
 410         101, 11, IPPROTO_TCP}, 2},
 411
 412         {{
 413         {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1e, 0x67, 0xff, 0xfe, 0, 0, 0},
 414         {0xfe, 0xb0, 0, 0, 0, 0, 0, 0, 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38,
 415                         0x05},
 416         102, 12, IPPROTO_TCP}, 3},
 417 };
 418
 419 typedef struct rte_hash lookup_struct_t;
 420 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 421 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 422
 423 #ifdef RTE_ARCH_X86_64
 424 /* default to 4 million hash entries (approx) */
 425 #define L3FWD_HASH_ENTRIES (1024*1024*4)
 426 #else
 427 /* 32-bit has less address-space for hugepage memory, limit to 1M entries */
 428 #define L3FWD_HASH_ENTRIES (1024*1024*1)
 429 #endif
 430 #define HASH_ENTRY_NUMBER_DEFAULT 4
 431
 432 static uint32_t hash_entry_number = HASH_ENTRY_NUMBER_DEFAULT;
 433
 434 static inline uint32_t
 435 ipv4_hash_crc(const void *data, __rte_unused uint32_t data_len,
 436                 uint32_t init_val)
 437 {
 438         const union ipv4_5tuple_host *k;
 439         uint32_t t;
 440         const uint32_t *p;
 441
 442         k = data;
 443         t = k->proto;
 444         p = (const uint32_t *)&k->port_src;
 445
 446         init_val = rte_hash_crc_4byte(t, init_val);
 447         init_val = rte_hash_crc_4byte(k->ip_src, init_val);
 448         init_val = rte_hash_crc_4byte(k->ip_dst, init_val);
 449         init_val = rte_hash_crc_4byte(*p, init_val);
 450         return init_val;
 451 }
 452
 453 static inline uint32_t
 454 ipv6_hash_crc(const void *data, __rte_unused uint32_t data_len,
 455                 uint32_t init_val)
 456 {
 457         const union ipv6_5tuple_host *k;
 458         uint32_t t;
 459         const uint32_t *p;
 460         const uint32_t *ip_src0, *ip_src1, *ip_src2, *ip_src3;
 461         const uint32_t *ip_dst0, *ip_dst1, *ip_dst2, *ip_dst3;
 462
 463         k = data;
 464         t = k->proto;
 465         p = (const uint32_t *)&k->port_src;
 466
 467         ip_src0 = (const uint32_t *) k->ip_src;
 468         ip_src1 = (const uint32_t *)(k->ip_src + 4);
 469         ip_src2 = (const uint32_t *)(k->ip_src + 8);
 470         ip_src3 = (const uint32_t *)(k->ip_src + 12);
 471         ip_dst0 = (const uint32_t *) k->ip_dst;
 472         ip_dst1 = (const uint32_t *)(k->ip_dst + 4);
 473         ip_dst2 = (const uint32_t *)(k->ip_dst + 8);
 474         ip_dst3 = (const uint32_t *)(k->ip_dst + 12);
 475         init_val = rte_hash_crc_4byte(t, init_val);
 476         init_val = rte_hash_crc_4byte(*ip_src0, init_val);
 477         init_val = rte_hash_crc_4byte(*ip_src1, init_val);
 478         init_val = rte_hash_crc_4byte(*ip_src2, init_val);
 479         init_val = rte_hash_crc_4byte(*ip_src3, init_val);
 480         init_val = rte_hash_crc_4byte(*ip_dst0, init_val);
 481         init_val = rte_hash_crc_4byte(*ip_dst1, init_val);
 482         init_val = rte_hash_crc_4byte(*ip_dst2, init_val);
 483         init_val = rte_hash_crc_4byte(*ip_dst3, init_val);
 484         init_val = rte_hash_crc_4byte(*p, init_val);
 485         return init_val;
 486 }
 487
 488 #define IPV4_L3FWD_NUM_ROUTES RTE_DIM(ipv4_l3fwd_route_array)
 489 #define IPV6_L3FWD_NUM_ROUTES RTE_DIM(ipv6_l3fwd_route_array)
 490
 491 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 492 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 493
 494 #endif
 495
 496 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 497 struct ipv4_l3fwd_route {
 498         uint32_t ip;
 499         uint8_t  depth;
 500         uint8_t  if_out;
 501 };
 502
 503 struct ipv6_l3fwd_route {
 504         uint8_t ip[16];
 505         uint8_t depth;
 506         uint8_t if_out;
 507 };
 508
 509 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 510         {IPv4(1, 1, 1, 0), 24, 0},
 511         {IPv4(2, 1, 1, 0), 24, 1},
 512         {IPv4(3, 1, 1, 0), 24, 2},
 513         {IPv4(4, 1, 1, 0), 24, 3},
 514         {IPv4(5, 1, 1, 0), 24, 4},
 515         {IPv4(6, 1, 1, 0), 24, 5},
 516         {IPv4(7, 1, 1, 0), 24, 6},
 517         {IPv4(8, 1, 1, 0), 24, 7},
 518 };
 519
 520 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 521         {{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 0},
 522         {{2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 1},
 523         {{3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 2},
 524         {{4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 3},
 525         {{5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 4},
 526         {{6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 5},
 527         {{7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 6},
 528         {{8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}, 48, 7},
 529 };
 530
 531 #define IPV4_L3FWD_NUM_ROUTES RTE_DIM(ipv4_l3fwd_route_array)
 532 #define IPV6_L3FWD_NUM_ROUTES RTE_DIM(ipv6_l3fwd_route_array)
 533
 534 #define IPV4_L3FWD_LPM_MAX_RULES         1024
 535 #define IPV6_L3FWD_LPM_MAX_RULES         1024
 536 #define IPV6_L3FWD_LPM_NUMBER_TBL8S (1 << 16)
 537
 538 typedef struct rte_lpm lookup_struct_t;
 539 typedef struct rte_lpm6 lookup6_struct_t;
 540 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 541 static lookup6_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 542 #endif
 543
 544 struct lcore_conf {
 545         lookup_struct_t *ipv4_lookup_struct;
 546 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 547         lookup6_struct_t *ipv6_lookup_struct;
 548 #else
 549         lookup_struct_t *ipv6_lookup_struct;
 550 #endif
 551         void *data;
 552 } __rte_cache_aligned;
 553
 554 static struct lcore_conf lcore_conf[RTE_MAX_LCORE];
 555 RTE_DEFINE_PER_LCORE(struct lcore_conf *, lcore_conf);
 556
 557 #define MAX_RX_QUEUE_PER_THREAD 16
 558 #define MAX_TX_PORT_PER_THREAD  RTE_MAX_ETHPORTS
 559 #define MAX_TX_QUEUE_PER_PORT   RTE_MAX_ETHPORTS
 560 #define MAX_RX_QUEUE_PER_PORT   128
 561
 562 #define MAX_RX_THREAD 1024
 563 #define MAX_TX_THREAD 1024
 564 #define MAX_THREAD    (MAX_RX_THREAD + MAX_TX_THREAD)
 565
 566 /**
 567  * Producers and consumers threads configuration
 568  */
 569 static int lthreads_on = 1; /**< Use lthreads for processing*/
 570
 571 rte_atomic16_t rx_counter;  /**< Number of spawned rx threads */
 572 rte_atomic16_t tx_counter;  /**< Number of spawned tx threads */
 573
 574 struct thread_conf {
 575         uint16_t lcore_id;      /**< Initial lcore for rx thread */
 576         uint16_t cpu_id;        /**< Cpu id for cpu load stats counter */
 577         uint16_t thread_id;     /**< Thread ID */
 578
 579 #if (APP_CPU_LOAD > 0)
 580         int busy[MAX_CPU_COUNTER];
 581 #endif
 582 };
 583
 584 struct thread_rx_conf {
 585         struct thread_conf conf;
 586
 587         uint16_t n_rx_queue;
 588         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 589
 590         uint16_t n_ring;        /**< Number of output rings */
 591         struct rte_ring *ring[RTE_MAX_LCORE];
 592         struct lthread_cond *ready[RTE_MAX_LCORE];
 593
 594 #if (APP_CPU_LOAD > 0)
 595         int busy[MAX_CPU_COUNTER];
 596 #endif
 597 } __rte_cache_aligned;
 598
 599 uint16_t n_rx_thread;
 600 struct thread_rx_conf rx_thread[MAX_RX_THREAD];
 601
 602 struct thread_tx_conf {
 603         struct thread_conf conf;
 604
 605         uint16_t tx_queue_id[RTE_MAX_LCORE];
 606         struct mbuf_table tx_mbufs[RTE_MAX_LCORE];
 607
 608         struct rte_ring *ring;
 609         struct lthread_cond **ready;
 610
 611 } __rte_cache_aligned;
 612
 613 uint16_t n_tx_thread;
 614 struct thread_tx_conf tx_thread[MAX_TX_THREAD];
 615
 616 /* Send burst of packets on an output interface */
 617 static inline int
 618 send_burst(struct thread_tx_conf *qconf, uint16_t n, uint16_t port)
 619 {
 620         struct rte_mbuf **m_table;
 621         int ret;
 622         uint16_t queueid;
 623
 624         queueid = qconf->tx_queue_id[port];
 625         m_table = (struct rte_mbuf **)qconf->tx_mbufs[port].m_table;
 626
 627         ret = rte_eth_tx_burst(port, queueid, m_table, n);
 628         if (unlikely(ret < n)) {
 629                 do {
 630                         rte_pktmbuf_free(m_table[ret]);
 631                 } while (++ret < n);
 632         }
 633
 634         return 0;
 635 }
 636
 637 /* Enqueue a single packet, and send burst if queue is filled */
 638 static inline int
 639 send_single_packet(struct rte_mbuf *m, uint16_t port)
 640 {
 641         uint16_t len;
 642         struct thread_tx_conf *qconf;
 643
 644         if (lthreads_on)
 645                 qconf = (struct thread_tx_conf *)lthread_get_data();
 646         else
 647                 qconf = (struct thread_tx_conf *)RTE_PER_LCORE(lcore_conf)->data;
 648
 649         len = qconf->tx_mbufs[port].len;
 650         qconf->tx_mbufs[port].m_table[len] = m;
 651         len++;
 652
 653         /* enough pkts to be sent */
 654         if (unlikely(len == MAX_PKT_BURST)) {
 655                 send_burst(qconf, MAX_PKT_BURST, port);
 656                 len = 0;
 657         }
 658
 659         qconf->tx_mbufs[port].len = len;
 660         return 0;
 661 }
 662
 663 #if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
 664         (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
 665 static __rte_always_inline void
 666 send_packetsx4(uint16_t port,
 667         struct rte_mbuf *m[], uint32_t num)
 668 {
 669         uint32_t len, j, n;
 670         struct thread_tx_conf *qconf;
 671
 672         if (lthreads_on)
 673                 qconf = (struct thread_tx_conf *)lthread_get_data();
 674         else
 675                 qconf = (struct thread_tx_conf *)RTE_PER_LCORE(lcore_conf)->data;
 676
 677         len = qconf->tx_mbufs[port].len;
 678
 679         /*
 680          * If TX buffer for that queue is empty, and we have enough packets,
 681          * then send them straightway.
 682          */
 683         if (num >= MAX_TX_BURST && len == 0) {
 684                 n = rte_eth_tx_burst(port, qconf->tx_queue_id[port], m, num);
 685                 if (unlikely(n < num)) {
 686                         do {
 687                                 rte_pktmbuf_free(m[n]);
 688                         } while (++n < num);
 689                 }
 690                 return;
 691         }
 692
 693         /*
 694          * Put packets into TX buffer for that queue.
 695          */
 696
 697         n = len + num;
 698         n = (n > MAX_PKT_BURST) ? MAX_PKT_BURST - len : num;
 699
 700         j = 0;
 701         switch (n % FWDSTEP) {
 702         while (j < n) {
 703         case 0:
 704                 qconf->tx_mbufs[port].m_table[len + j] = m[j];
 705                 j++;
 706                 /* fall-through */
 707         case 3:
 708                 qconf->tx_mbufs[port].m_table[len + j] = m[j];
 709                 j++;
 710                 /* fall-through */
 711         case 2:
 712                 qconf->tx_mbufs[port].m_table[len + j] = m[j];
 713                 j++;
 714                 /* fall-through */
 715         case 1:
 716                 qconf->tx_mbufs[port].m_table[len + j] = m[j];
 717                 j++;
 718         }
 719         }
 720
 721         len += n;
 722
 723         /* enough pkts to be sent */
 724         if (unlikely(len == MAX_PKT_BURST)) {
 725
 726                 send_burst(qconf, MAX_PKT_BURST, port);
 727
 728                 /* copy rest of the packets into the TX buffer. */
 729                 len = num - n;
 730                 j = 0;
 731                 switch (len % FWDSTEP) {
 732                 while (j < len) {
 733                 case 0:
 734                         qconf->tx_mbufs[port].m_table[j] = m[n + j];
 735                         j++;
 736                         /* fall-through */
 737                 case 3:
 738                         qconf->tx_mbufs[port].m_table[j] = m[n + j];
 739                         j++;
 740                         /* fall-through */
 741                 case 2:
 742                         qconf->tx_mbufs[port].m_table[j] = m[n + j];
 743                         j++;
 744                         /* fall-through */
 745                 case 1:
 746                         qconf->tx_mbufs[port].m_table[j] = m[n + j];
 747                         j++;
 748                 }
 749                 }
 750         }
 751
 752         qconf->tx_mbufs[port].len = len;
 753 }
 754 #endif /* APP_LOOKUP_LPM */
 755
 756 #ifdef DO_RFC_1812_CHECKS
 757 static inline int
 758 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len)
 759 {
 760         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 761         /*
 762          * 1. The packet length reported by the Link Layer must be large
 763          * enough to hold the minimum length legal IP datagram (20 bytes).
 764          */
 765         if (link_len < sizeof(struct ipv4_hdr))
 766                 return -1;
 767
 768         /* 2. The IP checksum must be correct. */
 769         /* this is checked in H/W */
 770
 771         /*
 772          * 3. The IP version number must be 4. If the version number is not 4
 773          * then the packet may be another version of IP, such as IPng or
 774          * ST-II.
 775          */
 776         if (((pkt->version_ihl) >> 4) != 4)
 777                 return -3;
 778         /*
 779          * 4. The IP header length field must be large enough to hold the
 780          * minimum length legal IP datagram (20 bytes = 5 words).
 781          */
 782         if ((pkt->version_ihl & 0xf) < 5)
 783                 return -4;
 784
 785         /*
 786          * 5. The IP total length field must be large enough to hold the IP
 787          * datagram header, whose length is specified in the IP header length
 788          * field.
 789          */
 790         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr))
 791                 return -5;
 792
 793         return 0;
 794 }
 795 #endif
 796
 797 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 798
 799 static __m128i mask0;
 800 static __m128i mask1;
 801 static __m128i mask2;
 802 static inline uint16_t
 803 get_ipv4_dst_port(void *ipv4_hdr, uint16_t portid,
 804                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 805 {
 806         int ret = 0;
 807         union ipv4_5tuple_host key;
 808
 809         ipv4_hdr = (uint8_t *)ipv4_hdr + offsetof(struct ipv4_hdr, time_to_live);
 810         __m128i data = _mm_loadu_si128((__m128i *)(ipv4_hdr));
 811         /* Get 5 tuple: dst port, src port, dst IP address, src IP address and
 812            protocol */
 813         key.xmm = _mm_and_si128(data, mask0);
 814         /* Find destination port */
 815         ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
 816         return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
 817 }
 818
 819 static inline uint16_t
 820 get_ipv6_dst_port(void *ipv6_hdr, uint16_t portid,
 821                 lookup_struct_t *ipv6_l3fwd_lookup_struct)
 822 {
 823         int ret = 0;
 824         union ipv6_5tuple_host key;
 825
 826         ipv6_hdr = (uint8_t *)ipv6_hdr + offsetof(struct ipv6_hdr, payload_len);
 827         __m128i data0 = _mm_loadu_si128((__m128i *)(ipv6_hdr));
 828         __m128i data1 = _mm_loadu_si128((__m128i *)(((uint8_t *)ipv6_hdr) +
 829                         sizeof(__m128i)));
 830         __m128i data2 = _mm_loadu_si128((__m128i *)(((uint8_t *)ipv6_hdr) +
 831                         sizeof(__m128i) + sizeof(__m128i)));
 832         /* Get part of 5 tuple: src IP address lower 96 bits and protocol */
 833         key.xmm[0] = _mm_and_si128(data0, mask1);
 834         /* Get part of 5 tuple: dst IP address lower 96 bits and src IP address
 835            higher 32 bits */
 836         key.xmm[1] = data1;
 837         /* Get part of 5 tuple: dst port and src port and dst IP address higher
 838            32 bits */
 839         key.xmm[2] = _mm_and_si128(data2, mask2);
 840
 841         /* Find destination port */
 842         ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
 843         return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
 844 }
 845 #endif
 846
 847 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 848
 849 static inline uint16_t
 850 get_ipv4_dst_port(void *ipv4_hdr, uint16_t portid,
 851                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 852 {
 853         uint32_t next_hop;
 854
 855         return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
 856                 rte_be_to_cpu_32(((struct ipv4_hdr *)ipv4_hdr)->dst_addr),
 857                 &next_hop) == 0) ? next_hop : portid);
 858 }
 859
 860 static inline uint16_t
 861 get_ipv6_dst_port(void *ipv6_hdr,  uint16_t portid,
 862                 lookup6_struct_t *ipv6_l3fwd_lookup_struct)
 863 {
 864         uint32_t next_hop;
 865
 866         return ((rte_lpm6_lookup(ipv6_l3fwd_lookup_struct,
 867                         ((struct ipv6_hdr *)ipv6_hdr)->dst_addr, &next_hop) == 0) ?
 868                         next_hop : portid);
 869 }
 870 #endif
 871
 872 static inline void l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid)
 873                 __attribute__((unused));
 874
 875 #if ((APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) && \
 876         (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
 877
 878 #define MASK_ALL_PKTS   0xff
 879 #define EXCLUDE_1ST_PKT 0xfe
 880 #define EXCLUDE_2ND_PKT 0xfd
 881 #define EXCLUDE_3RD_PKT 0xfb
 882 #define EXCLUDE_4TH_PKT 0xf7
 883 #define EXCLUDE_5TH_PKT 0xef
 884 #define EXCLUDE_6TH_PKT 0xdf
 885 #define EXCLUDE_7TH_PKT 0xbf
 886 #define EXCLUDE_8TH_PKT 0x7f
 887
 888 static inline void
 889 simple_ipv4_fwd_8pkts(struct rte_mbuf *m[8], uint16_t portid)
 890 {
 891         struct ether_hdr *eth_hdr[8];
 892         struct ipv4_hdr *ipv4_hdr[8];
 893         uint16_t dst_port[8];
 894         int32_t ret[8];
 895         union ipv4_5tuple_host key[8];
 896         __m128i data[8];
 897
 898         eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
 899         eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
 900         eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
 901         eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
 902         eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
 903         eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
 904         eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
 905         eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
 906
 907         /* Handle IPv4 headers.*/
 908         ipv4_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv4_hdr *,
 909                         sizeof(struct ether_hdr));
 910         ipv4_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv4_hdr *,
 911                         sizeof(struct ether_hdr));
 912         ipv4_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv4_hdr *,
 913                         sizeof(struct ether_hdr));
 914         ipv4_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv4_hdr *,
 915                         sizeof(struct ether_hdr));
 916         ipv4_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv4_hdr *,
 917                         sizeof(struct ether_hdr));
 918         ipv4_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv4_hdr *,
 919                         sizeof(struct ether_hdr));
 920         ipv4_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv4_hdr *,
 921                         sizeof(struct ether_hdr));
 922         ipv4_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv4_hdr *,
 923                         sizeof(struct ether_hdr));
 924
 925 #ifdef DO_RFC_1812_CHECKS
 926         /* Check to make sure the packet is valid (RFC1812) */
 927         uint8_t valid_mask = MASK_ALL_PKTS;
 928
 929         if (is_valid_ipv4_pkt(ipv4_hdr[0], m[0]->pkt_len) < 0) {
 930                 rte_pktmbuf_free(m[0]);
 931                 valid_mask &= EXCLUDE_1ST_PKT;
 932         }
 933         if (is_valid_ipv4_pkt(ipv4_hdr[1], m[1]->pkt_len) < 0) {
 934                 rte_pktmbuf_free(m[1]);
 935                 valid_mask &= EXCLUDE_2ND_PKT;
 936         }
 937         if (is_valid_ipv4_pkt(ipv4_hdr[2], m[2]->pkt_len) < 0) {
 938                 rte_pktmbuf_free(m[2]);
 939                 valid_mask &= EXCLUDE_3RD_PKT;
 940         }
 941         if (is_valid_ipv4_pkt(ipv4_hdr[3], m[3]->pkt_len) < 0) {
 942                 rte_pktmbuf_free(m[3]);
 943                 valid_mask &= EXCLUDE_4TH_PKT;
 944         }
 945         if (is_valid_ipv4_pkt(ipv4_hdr[4], m[4]->pkt_len) < 0) {
 946                 rte_pktmbuf_free(m[4]);
 947                 valid_mask &= EXCLUDE_5TH_PKT;
 948         }
 949         if (is_valid_ipv4_pkt(ipv4_hdr[5], m[5]->pkt_len) < 0) {
 950                 rte_pktmbuf_free(m[5]);
 951                 valid_mask &= EXCLUDE_6TH_PKT;
 952         }
 953         if (is_valid_ipv4_pkt(ipv4_hdr[6], m[6]->pkt_len) < 0) {
 954                 rte_pktmbuf_free(m[6]);
 955                 valid_mask &= EXCLUDE_7TH_PKT;
 956         }
 957         if (is_valid_ipv4_pkt(ipv4_hdr[7], m[7]->pkt_len) < 0) {
 958                 rte_pktmbuf_free(m[7]);
 959                 valid_mask &= EXCLUDE_8TH_PKT;
 960         }
 961         if (unlikely(valid_mask != MASK_ALL_PKTS)) {
 962                 if (valid_mask == 0)
 963                         return;
 964
 965                 uint8_t i = 0;
 966
 967                 for (i = 0; i < 8; i++)
 968                         if ((0x1 << i) & valid_mask)
 969                                 l3fwd_simple_forward(m[i], portid);
 970         }
 971 #endif /* End of #ifdef DO_RFC_1812_CHECKS */
 972
 973         data[0] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[0], __m128i *,
 974                         sizeof(struct ether_hdr) +
 975                         offsetof(struct ipv4_hdr, time_to_live)));
 976         data[1] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[1], __m128i *,
 977                         sizeof(struct ether_hdr) +
 978                         offsetof(struct ipv4_hdr, time_to_live)));
 979         data[2] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[2], __m128i *,
 980                         sizeof(struct ether_hdr) +
 981                         offsetof(struct ipv4_hdr, time_to_live)));
 982         data[3] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[3], __m128i *,
 983                         sizeof(struct ether_hdr) +
 984                         offsetof(struct ipv4_hdr, time_to_live)));
 985         data[4] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[4], __m128i *,
 986                         sizeof(struct ether_hdr) +
 987                         offsetof(struct ipv4_hdr, time_to_live)));
 988         data[5] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[5], __m128i *,
 989                         sizeof(struct ether_hdr) +
 990                         offsetof(struct ipv4_hdr, time_to_live)));
 991         data[6] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[6], __m128i *,
 992                         sizeof(struct ether_hdr) +
 993                         offsetof(struct ipv4_hdr, time_to_live)));
 994         data[7] = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m[7], __m128i *,
 995                         sizeof(struct ether_hdr) +
 996                         offsetof(struct ipv4_hdr, time_to_live)));
 997
 998         key[0].xmm = _mm_and_si128(data[0], mask0);
 999         key[1].xmm = _mm_and_si128(data[1], mask0);
1000         key[2].xmm = _mm_and_si128(data[2], mask0);
1001         key[3].xmm = _mm_and_si128(data[3], mask0);
1002         key[4].xmm = _mm_and_si128(data[4], mask0);
1003         key[5].xmm = _mm_and_si128(data[5], mask0);
1004         key[6].xmm = _mm_and_si128(data[6], mask0);
1005         key[7].xmm = _mm_and_si128(data[7], mask0);
1006
1007         const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
1008                         &key[4], &key[5], &key[6], &key[7]};
1009
1010         rte_hash_lookup_bulk(RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct,
1011                         &key_array[0], 8, ret);
1012         dst_port[0] = ((ret[0] < 0) ? portid : ipv4_l3fwd_out_if[ret[0]]);
1013         dst_port[1] = ((ret[1] < 0) ? portid : ipv4_l3fwd_out_if[ret[1]]);
1014         dst_port[2] = ((ret[2] < 0) ? portid : ipv4_l3fwd_out_if[ret[2]]);
1015         dst_port[3] = ((ret[3] < 0) ? portid : ipv4_l3fwd_out_if[ret[3]]);
1016         dst_port[4] = ((ret[4] < 0) ? portid : ipv4_l3fwd_out_if[ret[4]]);
1017         dst_port[5] = ((ret[5] < 0) ? portid : ipv4_l3fwd_out_if[ret[5]]);
1018         dst_port[6] = ((ret[6] < 0) ? portid : ipv4_l3fwd_out_if[ret[6]]);
1019         dst_port[7] = ((ret[7] < 0) ? portid : ipv4_l3fwd_out_if[ret[7]]);
1020
1021         if (dst_port[0] >= RTE_MAX_ETHPORTS ||
1022                         (enabled_port_mask & 1 << dst_port[0]) == 0)
1023                 dst_port[0] = portid;
1024         if (dst_port[1] >= RTE_MAX_ETHPORTS ||
1025                         (enabled_port_mask & 1 << dst_port[1]) == 0)
1026                 dst_port[1] = portid;
1027         if (dst_port[2] >= RTE_MAX_ETHPORTS ||
1028                         (enabled_port_mask & 1 << dst_port[2]) == 0)
1029                 dst_port[2] = portid;
1030         if (dst_port[3] >= RTE_MAX_ETHPORTS ||
1031                         (enabled_port_mask & 1 << dst_port[3]) == 0)
1032                 dst_port[3] = portid;
1033         if (dst_port[4] >= RTE_MAX_ETHPORTS ||
1034                         (enabled_port_mask & 1 << dst_port[4]) == 0)
1035                 dst_port[4] = portid;
1036         if (dst_port[5] >= RTE_MAX_ETHPORTS ||
1037                         (enabled_port_mask & 1 << dst_port[5]) == 0)
1038                 dst_port[5] = portid;
1039         if (dst_port[6] >= RTE_MAX_ETHPORTS ||
1040                         (enabled_port_mask & 1 << dst_port[6]) == 0)
1041                 dst_port[6] = portid;
1042         if (dst_port[7] >= RTE_MAX_ETHPORTS ||
1043                         (enabled_port_mask & 1 << dst_port[7]) == 0)
1044                 dst_port[7] = portid;
1045
1046 #ifdef DO_RFC_1812_CHECKS
1047         /* Update time to live and header checksum */
1048         --(ipv4_hdr[0]->time_to_live);
1049         --(ipv4_hdr[1]->time_to_live);
1050         --(ipv4_hdr[2]->time_to_live);
1051         --(ipv4_hdr[3]->time_to_live);
1052         ++(ipv4_hdr[0]->hdr_checksum);
1053         ++(ipv4_hdr[1]->hdr_checksum);
1054         ++(ipv4_hdr[2]->hdr_checksum);
1055         ++(ipv4_hdr[3]->hdr_checksum);
1056         --(ipv4_hdr[4]->time_to_live);
1057         --(ipv4_hdr[5]->time_to_live);
1058         --(ipv4_hdr[6]->time_to_live);
1059         --(ipv4_hdr[7]->time_to_live);
1060         ++(ipv4_hdr[4]->hdr_checksum);
1061         ++(ipv4_hdr[5]->hdr_checksum);
1062         ++(ipv4_hdr[6]->hdr_checksum);
1063         ++(ipv4_hdr[7]->hdr_checksum);
1064 #endif
1065
1066         /* dst addr */
1067         *(uint64_t *)&eth_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
1068         *(uint64_t *)&eth_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
1069         *(uint64_t *)&eth_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
1070         *(uint64_t *)&eth_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
1071         *(uint64_t *)&eth_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
1072         *(uint64_t *)&eth_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
1073         *(uint64_t *)&eth_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
1074         *(uint64_t *)&eth_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
1075
1076         /* src addr */
1077         ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->s_addr);
1078         ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->s_addr);
1079         ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->s_addr);
1080         ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->s_addr);
1081         ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->s_addr);
1082         ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->s_addr);
1083         ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->s_addr);
1084         ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_hdr[7]->s_addr);
1085
1086         send_single_packet(m[0], (uint8_t)dst_port[0]);
1087         send_single_packet(m[1], (uint8_t)dst_port[1]);
1088         send_single_packet(m[2], (uint8_t)dst_port[2]);
1089         send_single_packet(m[3], (uint8_t)dst_port[3]);
1090         send_single_packet(m[4], (uint8_t)dst_port[4]);
1091         send_single_packet(m[5], (uint8_t)dst_port[5]);
1092         send_single_packet(m[6], (uint8_t)dst_port[6]);
1093         send_single_packet(m[7], (uint8_t)dst_port[7]);
1094
1095 }
1096
1097 static inline void get_ipv6_5tuple(struct rte_mbuf *m0, __m128i mask0,
1098                 __m128i mask1, union ipv6_5tuple_host *key)
1099 {
1100         __m128i tmpdata0 = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m0,
1101                         __m128i *, sizeof(struct ether_hdr) +
1102                         offsetof(struct ipv6_hdr, payload_len)));
1103         __m128i tmpdata1 = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m0,
1104                         __m128i *, sizeof(struct ether_hdr) +
1105                         offsetof(struct ipv6_hdr, payload_len) + sizeof(__m128i)));
1106         __m128i tmpdata2 = _mm_loadu_si128(rte_pktmbuf_mtod_offset(m0,
1107                         __m128i *, sizeof(struct ether_hdr) +
1108                         offsetof(struct ipv6_hdr, payload_len) + sizeof(__m128i) +
1109                         sizeof(__m128i)));
1110         key->xmm[0] = _mm_and_si128(tmpdata0, mask0);
1111         key->xmm[1] = tmpdata1;
1112         key->xmm[2] = _mm_and_si128(tmpdata2, mask1);
1113 }
1114
1115 static inline void
1116 simple_ipv6_fwd_8pkts(struct rte_mbuf *m[8], uint16_t portid)
1117 {
1118         int32_t ret[8];
1119         uint16_t dst_port[8];
1120         struct ether_hdr *eth_hdr[8];
1121         union ipv6_5tuple_host key[8];
1122
1123         __attribute__((unused)) struct ipv6_hdr *ipv6_hdr[8];
1124
1125         eth_hdr[0] = rte_pktmbuf_mtod(m[0], struct ether_hdr *);
1126         eth_hdr[1] = rte_pktmbuf_mtod(m[1], struct ether_hdr *);
1127         eth_hdr[2] = rte_pktmbuf_mtod(m[2], struct ether_hdr *);
1128         eth_hdr[3] = rte_pktmbuf_mtod(m[3], struct ether_hdr *);
1129         eth_hdr[4] = rte_pktmbuf_mtod(m[4], struct ether_hdr *);
1130         eth_hdr[5] = rte_pktmbuf_mtod(m[5], struct ether_hdr *);
1131         eth_hdr[6] = rte_pktmbuf_mtod(m[6], struct ether_hdr *);
1132         eth_hdr[7] = rte_pktmbuf_mtod(m[7], struct ether_hdr *);
1133
1134         /* Handle IPv6 headers.*/
1135         ipv6_hdr[0] = rte_pktmbuf_mtod_offset(m[0], struct ipv6_hdr *,
1136                         sizeof(struct ether_hdr));
1137         ipv6_hdr[1] = rte_pktmbuf_mtod_offset(m[1], struct ipv6_hdr *,
1138                         sizeof(struct ether_hdr));
1139         ipv6_hdr[2] = rte_pktmbuf_mtod_offset(m[2], struct ipv6_hdr *,
1140                         sizeof(struct ether_hdr));
1141         ipv6_hdr[3] = rte_pktmbuf_mtod_offset(m[3], struct ipv6_hdr *,
1142                         sizeof(struct ether_hdr));
1143         ipv6_hdr[4] = rte_pktmbuf_mtod_offset(m[4], struct ipv6_hdr *,
1144                         sizeof(struct ether_hdr));
1145         ipv6_hdr[5] = rte_pktmbuf_mtod_offset(m[5], struct ipv6_hdr *,
1146                         sizeof(struct ether_hdr));
1147         ipv6_hdr[6] = rte_pktmbuf_mtod_offset(m[6], struct ipv6_hdr *,
1148                         sizeof(struct ether_hdr));
1149         ipv6_hdr[7] = rte_pktmbuf_mtod_offset(m[7], struct ipv6_hdr *,
1150                         sizeof(struct ether_hdr));
1151
1152         get_ipv6_5tuple(m[0], mask1, mask2, &key[0]);
1153         get_ipv6_5tuple(m[1], mask1, mask2, &key[1]);
1154         get_ipv6_5tuple(m[2], mask1, mask2, &key[2]);
1155         get_ipv6_5tuple(m[3], mask1, mask2, &key[3]);
1156         get_ipv6_5tuple(m[4], mask1, mask2, &key[4]);
1157         get_ipv6_5tuple(m[5], mask1, mask2, &key[5]);
1158         get_ipv6_5tuple(m[6], mask1, mask2, &key[6]);
1159         get_ipv6_5tuple(m[7], mask1, mask2, &key[7]);
1160
1161         const void *key_array[8] = {&key[0], &key[1], &key[2], &key[3],
1162                         &key[4], &key[5], &key[6], &key[7]};
1163
1164         rte_hash_lookup_bulk(RTE_PER_LCORE(lcore_conf)->ipv6_lookup_struct,
1165                         &key_array[0], 4, ret);
1166         dst_port[0] = ((ret[0] < 0) ? portid : ipv6_l3fwd_out_if[ret[0]]);
1167         dst_port[1] = ((ret[1] < 0) ? portid : ipv6_l3fwd_out_if[ret[1]]);
1168         dst_port[2] = ((ret[2] < 0) ? portid : ipv6_l3fwd_out_if[ret[2]]);
1169         dst_port[3] = ((ret[3] < 0) ? portid : ipv6_l3fwd_out_if[ret[3]]);
1170         dst_port[4] = ((ret[4] < 0) ? portid : ipv6_l3fwd_out_if[ret[4]]);
1171         dst_port[5] = ((ret[5] < 0) ? portid : ipv6_l3fwd_out_if[ret[5]]);
1172         dst_port[6] = ((ret[6] < 0) ? portid : ipv6_l3fwd_out_if[ret[6]]);
1173         dst_port[7] = ((ret[7] < 0) ? portid : ipv6_l3fwd_out_if[ret[7]]);
1174
1175         if (dst_port[0] >= RTE_MAX_ETHPORTS ||
1176                         (enabled_port_mask & 1 << dst_port[0]) == 0)
1177                 dst_port[0] = portid;
1178         if (dst_port[1] >= RTE_MAX_ETHPORTS ||
1179                         (enabled_port_mask & 1 << dst_port[1]) == 0)
1180                 dst_port[1] = portid;
1181         if (dst_port[2] >= RTE_MAX_ETHPORTS ||
1182                         (enabled_port_mask & 1 << dst_port[2]) == 0)
1183                 dst_port[2] = portid;
1184         if (dst_port[3] >= RTE_MAX_ETHPORTS ||
1185                         (enabled_port_mask & 1 << dst_port[3]) == 0)
1186                 dst_port[3] = portid;
1187         if (dst_port[4] >= RTE_MAX_ETHPORTS ||
1188                         (enabled_port_mask & 1 << dst_port[4]) == 0)
1189                 dst_port[4] = portid;
1190         if (dst_port[5] >= RTE_MAX_ETHPORTS ||
1191                         (enabled_port_mask & 1 << dst_port[5]) == 0)
1192                 dst_port[5] = portid;
1193         if (dst_port[6] >= RTE_MAX_ETHPORTS ||
1194                         (enabled_port_mask & 1 << dst_port[6]) == 0)
1195                 dst_port[6] = portid;
1196         if (dst_port[7] >= RTE_MAX_ETHPORTS ||
1197                         (enabled_port_mask & 1 << dst_port[7]) == 0)
1198                 dst_port[7] = portid;
1199
1200         /* dst addr */
1201         *(uint64_t *)&eth_hdr[0]->d_addr = dest_eth_addr[dst_port[0]];
1202         *(uint64_t *)&eth_hdr[1]->d_addr = dest_eth_addr[dst_port[1]];
1203         *(uint64_t *)&eth_hdr[2]->d_addr = dest_eth_addr[dst_port[2]];
1204         *(uint64_t *)&eth_hdr[3]->d_addr = dest_eth_addr[dst_port[3]];
1205         *(uint64_t *)&eth_hdr[4]->d_addr = dest_eth_addr[dst_port[4]];
1206         *(uint64_t *)&eth_hdr[5]->d_addr = dest_eth_addr[dst_port[5]];
1207         *(uint64_t *)&eth_hdr[6]->d_addr = dest_eth_addr[dst_port[6]];
1208         *(uint64_t *)&eth_hdr[7]->d_addr = dest_eth_addr[dst_port[7]];
1209
1210         /* src addr */
1211         ether_addr_copy(&ports_eth_addr[dst_port[0]], &eth_hdr[0]->s_addr);
1212         ether_addr_copy(&ports_eth_addr[dst_port[1]], &eth_hdr[1]->s_addr);
1213         ether_addr_copy(&ports_eth_addr[dst_port[2]], &eth_hdr[2]->s_addr);
1214         ether_addr_copy(&ports_eth_addr[dst_port[3]], &eth_hdr[3]->s_addr);
1215         ether_addr_copy(&ports_eth_addr[dst_port[4]], &eth_hdr[4]->s_addr);
1216         ether_addr_copy(&ports_eth_addr[dst_port[5]], &eth_hdr[5]->s_addr);
1217         ether_addr_copy(&ports_eth_addr[dst_port[6]], &eth_hdr[6]->s_addr);
1218         ether_addr_copy(&ports_eth_addr[dst_port[7]], &eth_hdr[7]->s_addr);
1219
1220         send_single_packet(m[0], dst_port[0]);
1221         send_single_packet(m[1], dst_port[1]);
1222         send_single_packet(m[2], dst_port[2]);
1223         send_single_packet(m[3], dst_port[3]);
1224         send_single_packet(m[4], dst_port[4]);
1225         send_single_packet(m[5], dst_port[5]);
1226         send_single_packet(m[6], dst_port[6]);
1227         send_single_packet(m[7], dst_port[7]);
1228
1229 }
1230 #endif /* APP_LOOKUP_METHOD */
1231
1232 static __rte_always_inline void
1233 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid)
1234 {
1235         struct ether_hdr *eth_hdr;
1236         struct ipv4_hdr *ipv4_hdr;
1237         uint16_t dst_port;
1238
1239         eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *);
1240
1241         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
1242                 /* Handle IPv4 headers.*/
1243                 ipv4_hdr = rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *,
1244                                 sizeof(struct ether_hdr));
1245
1246 #ifdef DO_RFC_1812_CHECKS
1247                 /* Check to make sure the packet is valid (RFC1812) */
1248                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
1249                         rte_pktmbuf_free(m);
1250                         return;
1251                 }
1252 #endif
1253
1254                  dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
1255                         RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct);
1256                 if (dst_port >= RTE_MAX_ETHPORTS ||
1257                                 (enabled_port_mask & 1 << dst_port) == 0)
1258                         dst_port = portid;
1259
1260 #ifdef DO_RFC_1812_CHECKS
1261                 /* Update time to live and header checksum */
1262                 --(ipv4_hdr->time_to_live);
1263                 ++(ipv4_hdr->hdr_checksum);
1264 #endif
1265                 /* dst addr */
1266                 *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
1267
1268                 /* src addr */
1269                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
1270
1271                 send_single_packet(m, dst_port);
1272         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
1273                 /* Handle IPv6 headers.*/
1274                 struct ipv6_hdr *ipv6_hdr;
1275
1276                 ipv6_hdr = rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *,
1277                                 sizeof(struct ether_hdr));
1278
1279                 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
1280                                 RTE_PER_LCORE(lcore_conf)->ipv6_lookup_struct);
1281
1282                 if (dst_port >= RTE_MAX_ETHPORTS ||
1283                                 (enabled_port_mask & 1 << dst_port) == 0)
1284                         dst_port = portid;
1285
1286                 /* dst addr */
1287                 *(uint64_t *)&eth_hdr->d_addr = dest_eth_addr[dst_port];
1288
1289                 /* src addr */
1290                 ether_addr_copy(&ports_eth_addr[dst_port], &eth_hdr->s_addr);
1291
1292                 send_single_packet(m, dst_port);
1293         } else
1294                 /* Free the mbuf that contains non-IPV4/IPV6 packet */
1295                 rte_pktmbuf_free(m);
1296 }
1297
1298 #if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
1299         (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
1300 #ifdef DO_RFC_1812_CHECKS
1301
1302 #define IPV4_MIN_VER_IHL        0x45
1303 #define IPV4_MAX_VER_IHL        0x4f
1304 #define IPV4_MAX_VER_IHL_DIFF   (IPV4_MAX_VER_IHL - IPV4_MIN_VER_IHL)
1305
1306 /* Minimum value of IPV4 total length (20B) in network byte order. */
1307 #define IPV4_MIN_LEN_BE (sizeof(struct ipv4_hdr) << 8)
1308
1309 /*
1310  * From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2:
1311  * - The IP version number must be 4.
1312  * - The IP header length field must be large enough to hold the
1313  *    minimum length legal IP datagram (20 bytes = 5 words).
1314  * - The IP total length field must be large enough to hold the IP
1315  *   datagram header, whose length is specified in the IP header length
1316  *   field.
1317  * If we encounter invalid IPV4 packet, then set destination port for it
1318  * to BAD_PORT value.
1319  */
1320 static __rte_always_inline void
1321 rfc1812_process(struct ipv4_hdr *ipv4_hdr, uint16_t *dp, uint32_t ptype)
1322 {
1323         uint8_t ihl;
1324
1325         if (RTE_ETH_IS_IPV4_HDR(ptype)) {
1326                 ihl = ipv4_hdr->version_ihl - IPV4_MIN_VER_IHL;
1327
1328                 ipv4_hdr->time_to_live--;
1329                 ipv4_hdr->hdr_checksum++;
1330
1331                 if (ihl > IPV4_MAX_VER_IHL_DIFF ||
1332                                 ((uint8_t)ipv4_hdr->total_length == 0 &&
1333                                 ipv4_hdr->total_length < IPV4_MIN_LEN_BE)) {
1334                         dp[0] = BAD_PORT;
1335                 }
1336         }
1337 }
1338
1339 #else
1340 #define rfc1812_process(mb, dp, ptype)  do { } while (0)
1341 #endif /* DO_RFC_1812_CHECKS */
1342 #endif /* APP_LOOKUP_LPM && ENABLE_MULTI_BUFFER_OPTIMIZE */
1343
1344
1345 #if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
1346         (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
1347
1348 static __rte_always_inline uint16_t
1349 get_dst_port(struct rte_mbuf *pkt, uint32_t dst_ipv4, uint16_t portid)
1350 {
1351         uint32_t next_hop;
1352         struct ipv6_hdr *ipv6_hdr;
1353         struct ether_hdr *eth_hdr;
1354
1355         if (RTE_ETH_IS_IPV4_HDR(pkt->packet_type)) {
1356                 return (uint16_t) ((rte_lpm_lookup(
1357                                 RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct, dst_ipv4,
1358                                 &next_hop) == 0) ? next_hop : portid);
1359
1360         } else if (RTE_ETH_IS_IPV6_HDR(pkt->packet_type)) {
1361
1362                 eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
1363                 ipv6_hdr = (struct ipv6_hdr *)(eth_hdr + 1);
1364
1365                 return (uint16_t) ((rte_lpm6_lookup(
1366                                 RTE_PER_LCORE(lcore_conf)->ipv6_lookup_struct,
1367                                 ipv6_hdr->dst_addr, &next_hop) == 0) ?
1368                                 next_hop : portid);
1369
1370         }
1371
1372         return portid;
1373 }
1374
1375 static inline void
1376 process_packet(struct rte_mbuf *pkt, uint16_t *dst_port, uint16_t portid)
1377 {
1378         struct ether_hdr *eth_hdr;
1379         struct ipv4_hdr *ipv4_hdr;
1380         uint32_t dst_ipv4;
1381         uint16_t dp;
1382         __m128i te, ve;
1383
1384         eth_hdr = rte_pktmbuf_mtod(pkt, struct ether_hdr *);
1385         ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
1386
1387         dst_ipv4 = ipv4_hdr->dst_addr;
1388         dst_ipv4 = rte_be_to_cpu_32(dst_ipv4);
1389         dp = get_dst_port(pkt, dst_ipv4, portid);
1390
1391         te = _mm_load_si128((__m128i *)eth_hdr);
1392         ve = val_eth[dp];
1393
1394         dst_port[0] = dp;
1395         rfc1812_process(ipv4_hdr, dst_port, pkt->packet_type);
1396
1397         te =  _mm_blend_epi16(te, ve, MASK_ETH);
1398         _mm_store_si128((__m128i *)eth_hdr, te);
1399 }
1400
1401 /*
1402  * Read packet_type and destination IPV4 addresses from 4 mbufs.
1403  */
1404 static inline void
1405 processx4_step1(struct rte_mbuf *pkt[FWDSTEP],
1406                 __m128i *dip,
1407                 uint32_t *ipv4_flag)
1408 {
1409         struct ipv4_hdr *ipv4_hdr;
1410         struct ether_hdr *eth_hdr;
1411         uint32_t x0, x1, x2, x3;
1412
1413         eth_hdr = rte_pktmbuf_mtod(pkt[0], struct ether_hdr *);
1414         ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
1415         x0 = ipv4_hdr->dst_addr;
1416         ipv4_flag[0] = pkt[0]->packet_type & RTE_PTYPE_L3_IPV4;
1417
1418         eth_hdr = rte_pktmbuf_mtod(pkt[1], struct ether_hdr *);
1419         ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
1420         x1 = ipv4_hdr->dst_addr;
1421         ipv4_flag[0] &= pkt[1]->packet_type;
1422
1423         eth_hdr = rte_pktmbuf_mtod(pkt[2], struct ether_hdr *);
1424         ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
1425         x2 = ipv4_hdr->dst_addr;
1426         ipv4_flag[0] &= pkt[2]->packet_type;
1427
1428         eth_hdr = rte_pktmbuf_mtod(pkt[3], struct ether_hdr *);
1429         ipv4_hdr = (struct ipv4_hdr *)(eth_hdr + 1);
1430         x3 = ipv4_hdr->dst_addr;
1431         ipv4_flag[0] &= pkt[3]->packet_type;
1432
1433         dip[0] = _mm_set_epi32(x3, x2, x1, x0);
1434 }
1435
1436 /*
1437  * Lookup into LPM for destination port.
1438  * If lookup fails, use incoming port (portid) as destination port.
1439  */
1440 static inline void
1441 processx4_step2(__m128i dip,
1442                 uint32_t ipv4_flag,
1443                 uint16_t portid,
1444                 struct rte_mbuf *pkt[FWDSTEP],
1445                 uint16_t dprt[FWDSTEP])
1446 {
1447         rte_xmm_t dst;
1448         const __m128i bswap_mask = _mm_set_epi8(12, 13, 14, 15, 8, 9, 10, 11,
1449                         4, 5, 6, 7, 0, 1, 2, 3);
1450
1451         /* Byte swap 4 IPV4 addresses. */
1452         dip = _mm_shuffle_epi8(dip, bswap_mask);
1453
1454         /* if all 4 packets are IPV4. */
1455         if (likely(ipv4_flag)) {
1456                 rte_lpm_lookupx4(RTE_PER_LCORE(lcore_conf)->ipv4_lookup_struct, dip,
1457                                 dst.u32, portid);
1458
1459                 /* get rid of unused upper 16 bit for each dport. */
1460                 dst.x = _mm_packs_epi32(dst.x, dst.x);
1461                 *(uint64_t *)dprt = dst.u64[0];
1462         } else {
1463                 dst.x = dip;
1464                 dprt[0] = get_dst_port(pkt[0], dst.u32[0], portid);
1465                 dprt[1] = get_dst_port(pkt[1], dst.u32[1], portid);
1466                 dprt[2] = get_dst_port(pkt[2], dst.u32[2], portid);
1467                 dprt[3] = get_dst_port(pkt[3], dst.u32[3], portid);
1468         }
1469 }
1470
1471 /*
1472  * Update source and destination MAC addresses in the ethernet header.
1473  * Perform RFC1812 checks and updates for IPV4 packets.
1474  */
1475 static inline void
1476 processx4_step3(struct rte_mbuf *pkt[FWDSTEP], uint16_t dst_port[FWDSTEP])
1477 {
1478         __m128i te[FWDSTEP];
1479         __m128i ve[FWDSTEP];
1480         __m128i *p[FWDSTEP];
1481
1482         p[0] = rte_pktmbuf_mtod(pkt[0], __m128i *);
1483         p[1] = rte_pktmbuf_mtod(pkt[1], __m128i *);
1484         p[2] = rte_pktmbuf_mtod(pkt[2], __m128i *);
1485         p[3] = rte_pktmbuf_mtod(pkt[3], __m128i *);
1486
1487         ve[0] = val_eth[dst_port[0]];
1488         te[0] = _mm_load_si128(p[0]);
1489
1490         ve[1] = val_eth[dst_port[1]];
1491         te[1] = _mm_load_si128(p[1]);
1492
1493         ve[2] = val_eth[dst_port[2]];
1494         te[2] = _mm_load_si128(p[2]);
1495
1496         ve[3] = val_eth[dst_port[3]];
1497         te[3] = _mm_load_si128(p[3]);
1498
1499         /* Update first 12 bytes, keep rest bytes intact. */
1500         te[0] =  _mm_blend_epi16(te[0], ve[0], MASK_ETH);
1501         te[1] =  _mm_blend_epi16(te[1], ve[1], MASK_ETH);
1502         te[2] =  _mm_blend_epi16(te[2], ve[2], MASK_ETH);
1503         te[3] =  _mm_blend_epi16(te[3], ve[3], MASK_ETH);
1504
1505         _mm_store_si128(p[0], te[0]);
1506         _mm_store_si128(p[1], te[1]);
1507         _mm_store_si128(p[2], te[2]);
1508         _mm_store_si128(p[3], te[3]);
1509
1510         rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[0] + 1),
1511                         &dst_port[0], pkt[0]->packet_type);
1512         rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[1] + 1),
1513                         &dst_port[1], pkt[1]->packet_type);
1514         rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[2] + 1),
1515                         &dst_port[2], pkt[2]->packet_type);
1516         rfc1812_process((struct ipv4_hdr *)((struct ether_hdr *)p[3] + 1),
1517                         &dst_port[3], pkt[3]->packet_type);
1518 }
1519
1520 /*
1521  * We group consecutive packets with the same destionation port into one burst.
1522  * To avoid extra latency this is done together with some other packet
1523  * processing, but after we made a final decision about packet's destination.
1524  * To do this we maintain:
1525  * pnum - array of number of consecutive packets with the same dest port for
1526  * each packet in the input burst.
1527  * lp - pointer to the last updated element in the pnum.
1528  * dlp - dest port value lp corresponds to.
1529  */
1530
1531 #define GRPSZ   (1 << FWDSTEP)
1532 #define GRPMSK  (GRPSZ - 1)
1533
1534 #define GROUP_PORT_STEP(dlp, dcp, lp, pn, idx)  do { \
1535         if (likely((dlp) == (dcp)[(idx)])) {         \
1536                 (lp)[0]++;                           \
1537         } else {                                     \
1538                 (dlp) = (dcp)[idx];                  \
1539                 (lp) = (pn) + (idx);                 \
1540                 (lp)[0] = 1;                         \
1541         }                                            \
1542 } while (0)
1543
1544 /*
1545  * Group consecutive packets with the same destination port in bursts of 4.
1546  * Suppose we have array of destionation ports:
1547  * dst_port[] = {a, b, c, d,, e, ... }
1548  * dp1 should contain: <a, b, c, d>, dp2: <b, c, d, e>.
1549  * We doing 4 comparisons at once and the result is 4 bit mask.
1550  * This mask is used as an index into prebuild array of pnum values.
1551  */
1552 static inline uint16_t *
1553 port_groupx4(uint16_t pn[FWDSTEP + 1], uint16_t *lp, __m128i dp1, __m128i dp2)
1554 {
1555         static const struct {
1556                 uint64_t pnum; /* prebuild 4 values for pnum[]. */
1557                 int32_t  idx;  /* index for new last updated elemnet. */
1558                 uint16_t lpv;  /* add value to the last updated element. */
1559         } gptbl[GRPSZ] = {
1560         {
1561                 /* 0: a != b, b != c, c != d, d != e */
1562                 .pnum = UINT64_C(0x0001000100010001),
1563                 .idx = 4,
1564                 .lpv = 0,
1565         },
1566         {
1567                 /* 1: a == b, b != c, c != d, d != e */
1568                 .pnum = UINT64_C(0x0001000100010002),
1569                 .idx = 4,
1570                 .lpv = 1,
1571         },
1572         {
1573                 /* 2: a != b, b == c, c != d, d != e */
1574                 .pnum = UINT64_C(0x0001000100020001),
1575                 .idx = 4,
1576                 .lpv = 0,
1577         },
1578         {
1579                 /* 3: a == b, b == c, c != d, d != e */
1580                 .pnum = UINT64_C(0x0001000100020003),
1581                 .idx = 4,
1582                 .lpv = 2,
1583         },
1584         {
1585                 /* 4: a != b, b != c, c == d, d != e */
1586                 .pnum = UINT64_C(0x0001000200010001),
1587                 .idx = 4,
1588                 .lpv = 0,
1589         },
1590         {
1591                 /* 5: a == b, b != c, c == d, d != e */
1592                 .pnum = UINT64_C(0x0001000200010002),
1593                 .idx = 4,
1594                 .lpv = 1,
1595         },
1596         {
1597                 /* 6: a != b, b == c, c == d, d != e */
1598                 .pnum = UINT64_C(0x0001000200030001),
1599                 .idx = 4,
1600                 .lpv = 0,
1601         },
1602         {
1603                 /* 7: a == b, b == c, c == d, d != e */
1604                 .pnum = UINT64_C(0x0001000200030004),
1605                 .idx = 4,
1606                 .lpv = 3,
1607         },
1608         {
1609                 /* 8: a != b, b != c, c != d, d == e */
1610                 .pnum = UINT64_C(0x0002000100010001),
1611                 .idx = 3,
1612                 .lpv = 0,
1613         },
1614         {
1615                 /* 9: a == b, b != c, c != d, d == e */
1616                 .pnum = UINT64_C(0x0002000100010002),
1617                 .idx = 3,
1618                 .lpv = 1,
1619         },
1620         {
1621                 /* 0xa: a != b, b == c, c != d, d == e */
1622                 .pnum = UINT64_C(0x0002000100020001),
1623                 .idx = 3,
1624                 .lpv = 0,
1625         },
1626         {
1627                 /* 0xb: a == b, b == c, c != d, d == e */
1628                 .pnum = UINT64_C(0x0002000100020003),
1629                 .idx = 3,
1630                 .lpv = 2,
1631         },
1632         {
1633                 /* 0xc: a != b, b != c, c == d, d == e */
1634                 .pnum = UINT64_C(0x0002000300010001),
1635                 .idx = 2,
1636                 .lpv = 0,
1637         },
1638         {
1639                 /* 0xd: a == b, b != c, c == d, d == e */
1640                 .pnum = UINT64_C(0x0002000300010002),
1641                 .idx = 2,
1642                 .lpv = 1,
1643         },
1644         {
1645                 /* 0xe: a != b, b == c, c == d, d == e */
1646                 .pnum = UINT64_C(0x0002000300040001),
1647                 .idx = 1,
1648                 .lpv = 0,
1649         },
1650         {
1651                 /* 0xf: a == b, b == c, c == d, d == e */
1652                 .pnum = UINT64_C(0x0002000300040005),
1653                 .idx = 0,
1654                 .lpv = 4,
1655         },
1656         };
1657
1658         union {
1659                 uint16_t u16[FWDSTEP + 1];
1660                 uint64_t u64;
1661         } *pnum = (void *)pn;
1662
1663         int32_t v;
1664
1665         dp1 = _mm_cmpeq_epi16(dp1, dp2);
1666         dp1 = _mm_unpacklo_epi16(dp1, dp1);
1667         v = _mm_movemask_ps((__m128)dp1);
1668
1669         /* update last port counter. */
1670         lp[0] += gptbl[v].lpv;
1671
1672         /* if dest port value has changed. */
1673         if (v != GRPMSK) {
1674                 pnum->u64 = gptbl[v].pnum;
1675                 pnum->u16[FWDSTEP] = 1;
1676                 lp = pnum->u16 + gptbl[v].idx;
1677         }
1678
1679         return lp;
1680 }
1681
1682 #endif /* APP_LOOKUP_METHOD */
1683
1684 static void
1685 process_burst(struct rte_mbuf *pkts_burst[MAX_PKT_BURST], int nb_rx,
1686                 uint16_t portid)
1687 {
1688
1689         int j;
1690
1691 #if ((APP_LOOKUP_METHOD == APP_LOOKUP_LPM) && \
1692         (ENABLE_MULTI_BUFFER_OPTIMIZE == 1))
1693         int32_t k;
1694         uint16_t dlp;
1695         uint16_t *lp;
1696         uint16_t dst_port[MAX_PKT_BURST];
1697         __m128i dip[MAX_PKT_BURST / FWDSTEP];
1698         uint32_t ipv4_flag[MAX_PKT_BURST / FWDSTEP];
1699         uint16_t pnum[MAX_PKT_BURST + 1];
1700 #endif
1701
1702
1703 #if (ENABLE_MULTI_BUFFER_OPTIMIZE == 1)
1704 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1705         {
1706                 /*
1707                  * Send nb_rx - nb_rx%8 packets
1708                  * in groups of 8.
1709                  */
1710                 int32_t n = RTE_ALIGN_FLOOR(nb_rx, 8);
1711
1712                 for (j = 0; j < n; j += 8) {
1713                         uint32_t pkt_type =
1714                                 pkts_burst[j]->packet_type &
1715                                 pkts_burst[j+1]->packet_type &
1716                                 pkts_burst[j+2]->packet_type &
1717                                 pkts_burst[j+3]->packet_type &
1718                                 pkts_burst[j+4]->packet_type &
1719                                 pkts_burst[j+5]->packet_type &
1720                                 pkts_burst[j+6]->packet_type &
1721                                 pkts_burst[j+7]->packet_type;
1722                         if (pkt_type & RTE_PTYPE_L3_IPV4) {
1723                                 simple_ipv4_fwd_8pkts(&pkts_burst[j], portid);
1724                         } else if (pkt_type &
1725                                 RTE_PTYPE_L3_IPV6) {
1726                                 simple_ipv6_fwd_8pkts(&pkts_burst[j], portid);
1727                         } else {
1728                                 l3fwd_simple_forward(pkts_burst[j], portid);
1729                                 l3fwd_simple_forward(pkts_burst[j+1], portid);
1730                                 l3fwd_simple_forward(pkts_burst[j+2], portid);
1731                                 l3fwd_simple_forward(pkts_burst[j+3], portid);
1732                                 l3fwd_simple_forward(pkts_burst[j+4], portid);
1733                                 l3fwd_simple_forward(pkts_burst[j+5], portid);
1734                                 l3fwd_simple_forward(pkts_burst[j+6], portid);
1735                                 l3fwd_simple_forward(pkts_burst[j+7], portid);
1736                         }
1737                 }
1738                 for (; j < nb_rx ; j++)
1739                         l3fwd_simple_forward(pkts_burst[j], portid);
1740         }
1741 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
1742
1743         k = RTE_ALIGN_FLOOR(nb_rx, FWDSTEP);
1744         for (j = 0; j != k; j += FWDSTEP)
1745                 processx4_step1(&pkts_burst[j], &dip[j / FWDSTEP],
1746                                 &ipv4_flag[j / FWDSTEP]);
1747
1748         k = RTE_ALIGN_FLOOR(nb_rx, FWDSTEP);
1749         for (j = 0; j != k; j += FWDSTEP)
1750                 processx4_step2(dip[j / FWDSTEP], ipv4_flag[j / FWDSTEP],
1751                                 portid, &pkts_burst[j], &dst_port[j]);
1752
1753         /*
1754          * Finish packet processing and group consecutive
1755          * packets with the same destination port.
1756          */
1757         k = RTE_ALIGN_FLOOR(nb_rx, FWDSTEP);
1758         if (k != 0) {
1759                 __m128i dp1, dp2;
1760
1761                 lp = pnum;
1762                 lp[0] = 1;
1763
1764                 processx4_step3(pkts_burst, dst_port);
1765
1766                 /* dp1: <d[0], d[1], d[2], d[3], ... > */
1767                 dp1 = _mm_loadu_si128((__m128i *)dst_port);
1768
1769                 for (j = FWDSTEP; j != k; j += FWDSTEP) {
1770                         processx4_step3(&pkts_burst[j], &dst_port[j]);
1771
1772                         /*
1773                          * dp2:
1774                          * <d[j-3], d[j-2], d[j-1], d[j], ... >
1775                          */
1776                         dp2 = _mm_loadu_si128(
1777                                         (__m128i *)&dst_port[j - FWDSTEP + 1]);
1778                         lp  = port_groupx4(&pnum[j - FWDSTEP], lp, dp1, dp2);
1779
1780                         /*
1781                          * dp1:
1782                          * <d[j], d[j+1], d[j+2], d[j+3], ... >
1783                          */
1784                         dp1 = _mm_srli_si128(dp2, (FWDSTEP - 1) *
1785                                         sizeof(dst_port[0]));
1786                 }
1787
1788                 /*
1789                  * dp2: <d[j-3], d[j-2], d[j-1], d[j-1], ... >
1790                  */
1791                 dp2 = _mm_shufflelo_epi16(dp1, 0xf9);
1792                 lp  = port_groupx4(&pnum[j - FWDSTEP], lp, dp1, dp2);
1793
1794                 /*
1795                  * remove values added by the last repeated
1796                  * dst port.
1797                  */
1798                 lp[0]--;
1799                 dlp = dst_port[j - 1];
1800         } else {
1801                 /* set dlp and lp to the never used values. */
1802                 dlp = BAD_PORT - 1;
1803                 lp = pnum + MAX_PKT_BURST;
1804         }
1805
1806         /* Process up to last 3 packets one by one. */
1807         switch (nb_rx % FWDSTEP) {
1808         case 3:
1809                 process_packet(pkts_burst[j], dst_port + j, portid);
1810                 GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
1811                 j++;
1812                 /* fall-through */
1813         case 2:
1814                 process_packet(pkts_burst[j], dst_port + j, portid);
1815                 GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
1816                 j++;
1817                 /* fall-through */
1818         case 1:
1819                 process_packet(pkts_burst[j], dst_port + j, portid);
1820                 GROUP_PORT_STEP(dlp, dst_port, lp, pnum, j);
1821                 j++;
1822         }
1823
1824         /*
1825          * Send packets out, through destination port.
1826          * Consecuteve pacekts with the same destination port
1827          * are already grouped together.
1828          * If destination port for the packet equals BAD_PORT,
1829          * then free the packet without sending it out.
1830          */
1831         for (j = 0; j < nb_rx; j += k) {
1832
1833                 int32_t m;
1834                 uint16_t pn;
1835
1836                 pn = dst_port[j];
1837                 k = pnum[j];
1838
1839                 if (likely(pn != BAD_PORT))
1840                         send_packetsx4(pn, pkts_burst + j, k);
1841                 else
1842                         for (m = j; m != j + k; m++)
1843                                 rte_pktmbuf_free(pkts_burst[m]);
1844
1845         }
1846
1847 #endif /* APP_LOOKUP_METHOD */
1848 #else /* ENABLE_MULTI_BUFFER_OPTIMIZE == 0 */
1849
1850         /* Prefetch first packets */
1851         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++)
1852                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[j], void *));
1853
1854         /* Prefetch and forward already prefetched packets */
1855         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1856                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1857                                 j + PREFETCH_OFFSET], void *));
1858                 l3fwd_simple_forward(pkts_burst[j], portid);
1859         }
1860
1861         /* Forward remaining prefetched packets */
1862         for (; j < nb_rx; j++)
1863                 l3fwd_simple_forward(pkts_burst[j], portid);
1864
1865 #endif /* ENABLE_MULTI_BUFFER_OPTIMIZE */
1866
1867 }
1868
1869 #if (APP_CPU_LOAD > 0)
1870
1871 /*
1872  * CPU-load stats collector
1873  */
1874 static int
1875 cpu_load_collector(__rte_unused void *arg) {
1876         unsigned i, j, k;
1877         uint64_t hits;
1878         uint64_t prev_tsc, diff_tsc, cur_tsc;
1879         uint64_t total[MAX_CPU] = { 0 };
1880         unsigned min_cpu = MAX_CPU;
1881         unsigned max_cpu = 0;
1882         unsigned cpu_id;
1883         int busy_total = 0;
1884         int busy_flag = 0;
1885
1886         unsigned int n_thread_per_cpu[MAX_CPU] = { 0 };
1887         struct thread_conf *thread_per_cpu[MAX_CPU][MAX_THREAD];
1888
1889         struct thread_conf *thread_conf;
1890
1891         const uint64_t interval_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1892                 US_PER_S * CPU_LOAD_TIMEOUT_US;
1893
1894         prev_tsc = 0;
1895         /*
1896          * Wait for all threads
1897          */
1898
1899         printf("Waiting for %d rx threads and %d tx threads\n", n_rx_thread,
1900                         n_tx_thread);
1901
1902         while (rte_atomic16_read(&rx_counter) < n_rx_thread)
1903                 rte_pause();
1904
1905         while (rte_atomic16_read(&tx_counter) < n_tx_thread)
1906                 rte_pause();
1907
1908         for (i = 0; i < n_rx_thread; i++) {
1909
1910                 thread_conf = &rx_thread[i].conf;
1911                 cpu_id = thread_conf->cpu_id;
1912                 thread_per_cpu[cpu_id][n_thread_per_cpu[cpu_id]++] = thread_conf;
1913
1914                 if (cpu_id > max_cpu)
1915                         max_cpu = cpu_id;
1916                 if (cpu_id < min_cpu)
1917                         min_cpu = cpu_id;
1918         }
1919         for (i = 0; i < n_tx_thread; i++) {
1920
1921                 thread_conf = &tx_thread[i].conf;
1922                 cpu_id = thread_conf->cpu_id;
1923                 thread_per_cpu[cpu_id][n_thread_per_cpu[cpu_id]++] = thread_conf;
1924
1925                 if (thread_conf->cpu_id > max_cpu)
1926                         max_cpu = thread_conf->cpu_id;
1927                 if (thread_conf->cpu_id < min_cpu)
1928                         min_cpu = thread_conf->cpu_id;
1929         }
1930
1931         while (1) {
1932
1933                 cpu_load.counter++;
1934                 for (i = min_cpu; i <= max_cpu; i++) {
1935                         for (j = 0; j < MAX_CPU_COUNTER; j++) {
1936                                 for (k = 0; k < n_thread_per_cpu[i]; k++)
1937                                         if (thread_per_cpu[i][k]->busy[j]) {
1938                                                 busy_flag = 1;
1939                                                 break;
1940                                         }
1941                                 if (busy_flag) {
1942                                         cpu_load.hits[j][i]++;
1943                                         busy_total = 1;
1944                                         busy_flag = 0;
1945                                 }
1946                         }
1947
1948                         if (busy_total) {
1949                                 total[i]++;
1950                                 busy_total = 0;
1951                         }
1952                 }
1953
1954                 cur_tsc = rte_rdtsc();
1955
1956                 diff_tsc = cur_tsc - prev_tsc;
1957                 if (unlikely(diff_tsc > interval_tsc)) {
1958
1959                         printf("\033c");
1960
1961                         printf("Cpu usage for %d rx threads and %d tx threads:\n\n",
1962                                         n_rx_thread, n_tx_thread);
1963
1964                         printf("cpu#     proc%%  poll%%  overhead%%\n\n");
1965
1966                         for (i = min_cpu; i <= max_cpu; i++) {
1967                                 hits = 0;
1968                                 printf("CPU %d:", i);
1969                                 for (j = 0; j < MAX_CPU_COUNTER; j++) {
1970                                         printf("%7" PRIu64 "",
1971                                                         cpu_load.hits[j][i] * 100 / cpu_load.counter);
1972                                         hits += cpu_load.hits[j][i];
1973                                         cpu_load.hits[j][i] = 0;
1974                                 }
1975                                 printf("%7" PRIu64 "\n",
1976                                                 100 - total[i] * 100 / cpu_load.counter);
1977                                 total[i] = 0;
1978                         }
1979                         cpu_load.counter = 0;
1980
1981                         prev_tsc = cur_tsc;
1982                 }
1983
1984         }
1985 }
1986 #endif /* APP_CPU_LOAD */
1987
1988 /*
1989  * Null processing lthread loop
1990  *
1991  * This loop is used to start empty scheduler on lcore.
1992  */
1993 static void
1994 lthread_null(__rte_unused void *args)
1995 {
1996         int lcore_id = rte_lcore_id();
1997
1998         RTE_LOG(INFO, L3FWD, "Starting scheduler on lcore %d.\n", lcore_id);
1999         lthread_exit(NULL);
2000 }
2001
2002 /* main processing loop */
2003 static void
2004 lthread_tx_per_ring(void *dummy)
2005 {
2006         int nb_rx;
2007         uint16_t portid;
2008         struct rte_ring *ring;
2009         struct thread_tx_conf *tx_conf;
2010         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
2011         struct lthread_cond *ready;
2012
2013         tx_conf = (struct thread_tx_conf *)dummy;
2014         ring = tx_conf->ring;
2015         ready = *tx_conf->ready;
2016
2017         lthread_set_data((void *)tx_conf);
2018
2019         /*
2020          * Move this lthread to lcore
2021          */
2022         lthread_set_affinity(tx_conf->conf.lcore_id);
2023
2024         RTE_LOG(INFO, L3FWD, "entering main tx loop on lcore %u\n", rte_lcore_id());
2025
2026         nb_rx = 0;
2027         rte_atomic16_inc(&tx_counter);
2028         while (1) {
2029
2030                 /*
2031                  * Read packet from ring
2032                  */
2033                 SET_CPU_BUSY(tx_conf, CPU_POLL);
2034                 nb_rx = rte_ring_sc_dequeue_burst(ring, (void **)pkts_burst,
2035                                 MAX_PKT_BURST, NULL);
2036                 SET_CPU_IDLE(tx_conf, CPU_POLL);
2037
2038                 if (nb_rx > 0) {
2039                         SET_CPU_BUSY(tx_conf, CPU_PROCESS);
2040                         portid = pkts_burst[0]->port;
2041                         process_burst(pkts_burst, nb_rx, portid);
2042                         SET_CPU_IDLE(tx_conf, CPU_PROCESS);
2043                         lthread_yield();
2044                 } else
2045                         lthread_cond_wait(ready, 0);
2046
2047         }
2048 }
2049
2050 /*
2051  * Main tx-lthreads spawner lthread.
2052  *
2053  * This lthread is used to spawn one new lthread per ring from producers.
2054  *
2055  */
2056 static void
2057 lthread_tx(void *args)
2058 {
2059         struct lthread *lt;
2060
2061         unsigned lcore_id;
2062         uint16_t portid;
2063         struct thread_tx_conf *tx_conf;
2064
2065         tx_conf = (struct thread_tx_conf *)args;
2066         lthread_set_data((void *)tx_conf);
2067
2068         /*
2069          * Move this lthread to the selected lcore
2070          */
2071         lthread_set_affinity(tx_conf->conf.lcore_id);
2072
2073         /*
2074          * Spawn tx readers (one per input ring)
2075          */
2076         lthread_create(&lt, tx_conf->conf.lcore_id, lthread_tx_per_ring,
2077                         (void *)tx_conf);
2078
2079         lcore_id = rte_lcore_id();
2080
2081         RTE_LOG(INFO, L3FWD, "Entering Tx main loop on lcore %u\n", lcore_id);
2082
2083         tx_conf->conf.cpu_id = sched_getcpu();
2084         while (1) {
2085
2086                 lthread_sleep(BURST_TX_DRAIN_US * 1000);
2087
2088                 /*
2089                  * TX burst queue drain
2090                  */
2091                 for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
2092                         if (tx_conf->tx_mbufs[portid].len == 0)
2093                                 continue;
2094                         SET_CPU_BUSY(tx_conf, CPU_PROCESS);
2095                         send_burst(tx_conf, tx_conf->tx_mbufs[portid].len, portid);
2096                         SET_CPU_IDLE(tx_conf, CPU_PROCESS);
2097                         tx_conf->tx_mbufs[portid].len = 0;
2098                 }
2099
2100         }
2101 }
2102
2103 static void
2104 lthread_rx(void *dummy)
2105 {
2106         int ret;
2107         uint16_t nb_rx;
2108         int i;
2109         uint16_t portid;
2110         uint8_t queueid;
2111         int worker_id;
2112         int len[RTE_MAX_LCORE] = { 0 };
2113         int old_len, new_len;
2114         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
2115         struct thread_rx_conf *rx_conf;
2116
2117         rx_conf = (struct thread_rx_conf *)dummy;
2118         lthread_set_data((void *)rx_conf);
2119
2120         /*
2121          * Move this lthread to lcore
2122          */
2123         lthread_set_affinity(rx_conf->conf.lcore_id);
2124
2125         if (rx_conf->n_rx_queue == 0) {
2126                 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", rte_lcore_id());
2127                 return;
2128         }
2129
2130         RTE_LOG(INFO, L3FWD, "Entering main Rx loop on lcore %u\n", rte_lcore_id());
2131
2132         for (i = 0; i < rx_conf->n_rx_queue; i++) {
2133
2134                 portid = rx_conf->rx_queue_list[i].port_id;
2135                 queueid = rx_conf->rx_queue_list[i].queue_id;
2136                 RTE_LOG(INFO, L3FWD,
2137                         " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
2138                                 rte_lcore_id(), portid, queueid);
2139         }
2140
2141         /*
2142          * Init all condition variables (one per rx thread)
2143          */
2144         for (i = 0; i < rx_conf->n_rx_queue; i++)
2145                 lthread_cond_init(NULL, &rx_conf->ready[i], NULL);
2146
2147         worker_id = 0;
2148
2149         rx_conf->conf.cpu_id = sched_getcpu();
2150         rte_atomic16_inc(&rx_counter);
2151         while (1) {
2152
2153                 /*
2154                  * Read packet from RX queues
2155                  */
2156                 for (i = 0; i < rx_conf->n_rx_queue; ++i) {
2157                         portid = rx_conf->rx_queue_list[i].port_id;
2158                         queueid = rx_conf->rx_queue_list[i].queue_id;
2159
2160                         SET_CPU_BUSY(rx_conf, CPU_POLL);
2161                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
2162                                 MAX_PKT_BURST);
2163                         SET_CPU_IDLE(rx_conf, CPU_POLL);
2164
2165                         if (nb_rx != 0) {
2166                                 worker_id = (worker_id + 1) % rx_conf->n_ring;
2167                                 old_len = len[worker_id];
2168
2169                                 SET_CPU_BUSY(rx_conf, CPU_PROCESS);
2170                                 ret = rte_ring_sp_enqueue_burst(
2171                                                 rx_conf->ring[worker_id],
2172                                                 (void **) pkts_burst,
2173                                                 nb_rx, NULL);
2174
2175                                 new_len = old_len + ret;
2176
2177                                 if (new_len >= BURST_SIZE) {
2178                                         lthread_cond_signal(rx_conf->ready[worker_id]);
2179                                         new_len = 0;
2180                                 }
2181
2182                                 len[worker_id] = new_len;
2183
2184                                 if (unlikely(ret < nb_rx)) {
2185                                         uint32_t k;
2186
2187                                         for (k = ret; k < nb_rx; k++) {
2188                                                 struct rte_mbuf *m = pkts_burst[k];
2189
2190                                                 rte_pktmbuf_free(m);
2191                                         }
2192                                 }
2193                                 SET_CPU_IDLE(rx_conf, CPU_PROCESS);
2194                         }
2195
2196                         lthread_yield();
2197                 }
2198         }
2199 }
2200
2201 /*
2202  * Start scheduler with initial lthread on lcore
2203  *
2204  * This lthread loop spawns all rx and tx lthreads on master lcore
2205  */
2206
2207 static void
2208 lthread_spawner(__rte_unused void *arg) {
2209         struct lthread *lt[MAX_THREAD];
2210         int i;
2211         int n_thread = 0;
2212
2213         printf("Entering lthread_spawner\n");
2214
2215         /*
2216          * Create producers (rx threads) on default lcore
2217          */
2218         for (i = 0; i < n_rx_thread; i++) {
2219                 rx_thread[i].conf.thread_id = i;
2220                 lthread_create(&lt[n_thread], -1, lthread_rx,
2221                                 (void *)&rx_thread[i]);
2222                 n_thread++;
2223         }
2224
2225         /*
2226          * Wait for all producers. Until some producers can be started on the same
2227          * scheduler as this lthread, yielding is required to let them to run and
2228          * prevent deadlock here.
2229          */
2230         while (rte_atomic16_read(&rx_counter) < n_rx_thread)
2231                 lthread_sleep(100000);
2232
2233         /*
2234          * Create consumers (tx threads) on default lcore_id
2235          */
2236         for (i = 0; i < n_tx_thread; i++) {
2237                 tx_thread[i].conf.thread_id = i;
2238                 lthread_create(&lt[n_thread], -1, lthread_tx,
2239                                 (void *)&tx_thread[i]);
2240                 n_thread++;
2241         }
2242
2243         /*
2244          * Wait for all threads finished
2245          */
2246         for (i = 0; i < n_thread; i++)
2247                 lthread_join(lt[i], NULL);
2248
2249 }
2250
2251 /*
2252  * Start master scheduler with initial lthread spawning rx and tx lthreads
2253  * (main_lthread_master).
2254  */
2255 static int
2256 lthread_master_spawner(__rte_unused void *arg) {
2257         struct lthread *lt;
2258         int lcore_id = rte_lcore_id();
2259
2260         RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
2261         lthread_create(&lt, -1, lthread_spawner, NULL);
2262         lthread_run();
2263
2264         return 0;
2265 }
2266
2267 /*
2268  * Start scheduler on lcore.
2269  */
2270 static int
2271 sched_spawner(__rte_unused void *arg) {
2272         struct lthread *lt;
2273         int lcore_id = rte_lcore_id();
2274
2275 #if (APP_CPU_LOAD)
2276         if (lcore_id == cpu_load_lcore_id) {
2277                 cpu_load_collector(arg);
2278                 return 0;
2279         }
2280 #endif /* APP_CPU_LOAD */
2281
2282         RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
2283         lthread_create(&lt, -1, lthread_null, NULL);
2284         lthread_run();
2285
2286         return 0;
2287 }
2288
2289 /* main processing loop */
2290 static int
2291 pthread_tx(void *dummy)
2292 {
2293         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
2294         uint64_t prev_tsc, diff_tsc, cur_tsc;
2295         int nb_rx;
2296         uint16_t portid;
2297         struct thread_tx_conf *tx_conf;
2298
2299         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
2300                 US_PER_S * BURST_TX_DRAIN_US;
2301
2302         prev_tsc = 0;
2303
2304         tx_conf = (struct thread_tx_conf *)dummy;
2305
2306         RTE_LOG(INFO, L3FWD, "Entering main Tx loop on lcore %u\n", rte_lcore_id());
2307
2308         tx_conf->conf.cpu_id = sched_getcpu();
2309         rte_atomic16_inc(&tx_counter);
2310         while (1) {
2311
2312                 cur_tsc = rte_rdtsc();
2313
2314                 /*
2315                  * TX burst queue drain
2316                  */
2317                 diff_tsc = cur_tsc - prev_tsc;
2318                 if (unlikely(diff_tsc > drain_tsc)) {
2319
2320                         /*
2321                          * This could be optimized (use queueid instead of
2322                          * portid), but it is not called so often
2323                          */
2324                         SET_CPU_BUSY(tx_conf, CPU_PROCESS);
2325                         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
2326                                 if (tx_conf->tx_mbufs[portid].len == 0)
2327                                         continue;
2328                                 send_burst(tx_conf, tx_conf->tx_mbufs[portid].len, portid);
2329                                 tx_conf->tx_mbufs[portid].len = 0;
2330                         }
2331                         SET_CPU_IDLE(tx_conf, CPU_PROCESS);
2332
2333                         prev_tsc = cur_tsc;
2334                 }
2335
2336                 /*
2337                  * Read packet from ring
2338                  */
2339                 SET_CPU_BUSY(tx_conf, CPU_POLL);
2340                 nb_rx = rte_ring_sc_dequeue_burst(tx_conf->ring,
2341                                 (void **)pkts_burst, MAX_PKT_BURST, NULL);
2342                 SET_CPU_IDLE(tx_conf, CPU_POLL);
2343
2344                 if (unlikely(nb_rx == 0)) {
2345                         sched_yield();
2346                         continue;
2347                 }
2348
2349                 SET_CPU_BUSY(tx_conf, CPU_PROCESS);
2350                 portid = pkts_burst[0]->port;
2351                 process_burst(pkts_burst, nb_rx, portid);
2352                 SET_CPU_IDLE(tx_conf, CPU_PROCESS);
2353
2354         }
2355 }
2356
2357 static int
2358 pthread_rx(void *dummy)
2359 {
2360         int i;
2361         int worker_id;
2362         uint32_t n;
2363         uint32_t nb_rx;
2364         unsigned lcore_id;
2365         uint8_t queueid;
2366         uint16_t portid;
2367         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
2368
2369         struct thread_rx_conf *rx_conf;
2370
2371         lcore_id = rte_lcore_id();
2372         rx_conf = (struct thread_rx_conf *)dummy;
2373
2374         if (rx_conf->n_rx_queue == 0) {
2375                 RTE_LOG(INFO, L3FWD, "lcore %u has nothing to do\n", lcore_id);
2376                 return 0;
2377         }
2378
2379         RTE_LOG(INFO, L3FWD, "entering main rx loop on lcore %u\n", lcore_id);
2380
2381         for (i = 0; i < rx_conf->n_rx_queue; i++) {
2382
2383                 portid = rx_conf->rx_queue_list[i].port_id;
2384                 queueid = rx_conf->rx_queue_list[i].queue_id;
2385                 RTE_LOG(INFO, L3FWD,
2386                         " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
2387                                 lcore_id, portid, queueid);
2388         }
2389
2390         worker_id = 0;
2391         rx_conf->conf.cpu_id = sched_getcpu();
2392         rte_atomic16_inc(&rx_counter);
2393         while (1) {
2394
2395                 /*
2396                  * Read packet from RX queues
2397                  */
2398                 for (i = 0; i < rx_conf->n_rx_queue; ++i) {
2399                         portid = rx_conf->rx_queue_list[i].port_id;
2400                         queueid = rx_conf->rx_queue_list[i].queue_id;
2401
2402                         SET_CPU_BUSY(rx_conf, CPU_POLL);
2403                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
2404                                 MAX_PKT_BURST);
2405                         SET_CPU_IDLE(rx_conf, CPU_POLL);
2406
2407                         if (nb_rx == 0) {
2408                                 sched_yield();
2409                                 continue;
2410                         }
2411
2412                         SET_CPU_BUSY(rx_conf, CPU_PROCESS);
2413                         worker_id = (worker_id + 1) % rx_conf->n_ring;
2414                         n = rte_ring_sp_enqueue_burst(rx_conf->ring[worker_id],
2415                                         (void **)pkts_burst, nb_rx, NULL);
2416
2417                         if (unlikely(n != nb_rx)) {
2418                                 uint32_t k;
2419
2420                                 for (k = n; k < nb_rx; k++) {
2421                                         struct rte_mbuf *m = pkts_burst[k];
2422
2423                                         rte_pktmbuf_free(m);
2424                                 }
2425                         }
2426
2427                         SET_CPU_IDLE(rx_conf, CPU_PROCESS);
2428
2429                 }
2430         }
2431 }
2432
2433 /*
2434  * P-Thread spawner.
2435  */
2436 static int
2437 pthread_run(__rte_unused void *arg) {
2438         int lcore_id = rte_lcore_id();
2439         int i;
2440
2441         for (i = 0; i < n_rx_thread; i++)
2442                 if (rx_thread[i].conf.lcore_id == lcore_id) {
2443                         printf("Start rx thread on %d...\n", lcore_id);
2444                         RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
2445                         RTE_PER_LCORE(lcore_conf)->data = (void *)&rx_thread[i];
2446                         pthread_rx((void *)&rx_thread[i]);
2447                         return 0;
2448                 }
2449
2450         for (i = 0; i < n_tx_thread; i++)
2451                 if (tx_thread[i].conf.lcore_id == lcore_id) {
2452                         printf("Start tx thread on %d...\n", lcore_id);
2453                         RTE_PER_LCORE(lcore_conf) = &lcore_conf[lcore_id];
2454                         RTE_PER_LCORE(lcore_conf)->data = (void *)&tx_thread[i];
2455                         pthread_tx((void *)&tx_thread[i]);
2456                         return 0;
2457                 }
2458
2459 #if (APP_CPU_LOAD)
2460         if (lcore_id == cpu_load_lcore_id)
2461                 cpu_load_collector(arg);
2462 #endif /* APP_CPU_LOAD */
2463
2464         return 0;
2465 }
2466
2467 static int
2468 check_lcore_params(void)
2469 {
2470         uint8_t queue, lcore;
2471         uint16_t i;
2472         int socketid;
2473
2474         for (i = 0; i < nb_rx_thread_params; ++i) {
2475                 queue = rx_thread_params[i].queue_id;
2476                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
2477                         printf("invalid queue number: %hhu\n", queue);
2478                         return -1;
2479                 }
2480                 lcore = rx_thread_params[i].lcore_id;
2481                 if (!rte_lcore_is_enabled(lcore)) {
2482                         printf("error: lcore %hhu is not enabled in lcore mask\n", lcore);
2483                         return -1;
2484                 }
2485                 socketid = rte_lcore_to_socket_id(lcore);
2486                 if ((socketid != 0) && (numa_on == 0))
2487                         printf("warning: lcore %hhu is on socket %d with numa off\n",
2488                                 lcore, socketid);
2489         }
2490         return 0;
2491 }
2492
2493 static int
2494 check_port_config(const unsigned nb_ports)
2495 {
2496         unsigned portid;
2497         uint16_t i;
2498
2499         for (i = 0; i < nb_rx_thread_params; ++i) {
2500                 portid = rx_thread_params[i].port_id;
2501                 if ((enabled_port_mask & (1 << portid)) == 0) {
2502                         printf("port %u is not enabled in port mask\n", portid);
2503                         return -1;
2504                 }
2505                 if (portid >= nb_ports) {
2506                         printf("port %u is not present on the board\n", portid);
2507                         return -1;
2508                 }
2509         }
2510         return 0;
2511 }
2512
2513 static uint8_t
2514 get_port_n_rx_queues(const uint16_t port)
2515 {
2516         int queue = -1;
2517         uint16_t i;
2518
2519         for (i = 0; i < nb_rx_thread_params; ++i)
2520                 if (rx_thread_params[i].port_id == port &&
2521                                 rx_thread_params[i].queue_id > queue)
2522                         queue = rx_thread_params[i].queue_id;
2523
2524         return (uint8_t)(++queue);
2525 }
2526
2527 static int
2528 init_rx_rings(void)
2529 {
2530         unsigned socket_io;
2531         struct thread_rx_conf *rx_conf;
2532         struct thread_tx_conf *tx_conf;
2533         unsigned rx_thread_id, tx_thread_id;
2534         char name[256];
2535         struct rte_ring *ring = NULL;
2536
2537         for (tx_thread_id = 0; tx_thread_id < n_tx_thread; tx_thread_id++) {
2538
2539                 tx_conf = &tx_thread[tx_thread_id];
2540
2541                 printf("Connecting tx-thread %d with rx-thread %d\n", tx_thread_id,
2542                                 tx_conf->conf.thread_id);
2543
2544                 rx_thread_id = tx_conf->conf.thread_id;
2545                 if (rx_thread_id > n_tx_thread) {
2546                         printf("connection from tx-thread %u to rx-thread %u fails "
2547                                         "(rx-thread not defined)\n", tx_thread_id, rx_thread_id);
2548                         return -1;
2549                 }
2550
2551                 rx_conf = &rx_thread[rx_thread_id];
2552                 socket_io = rte_lcore_to_socket_id(rx_conf->conf.lcore_id);
2553
2554                 snprintf(name, sizeof(name), "app_ring_s%u_rx%u_tx%u",
2555                                 socket_io, rx_thread_id, tx_thread_id);
2556
2557                 ring = rte_ring_create(name, 1024 * 4, socket_io,
2558                                 RING_F_SP_ENQ | RING_F_SC_DEQ);
2559
2560                 if (ring == NULL) {
2561                         rte_panic("Cannot create ring to connect rx-thread %u "
2562                                         "with tx-thread %u\n", rx_thread_id, tx_thread_id);
2563                 }
2564
2565                 rx_conf->ring[rx_conf->n_ring] = ring;
2566
2567                 tx_conf->ring = ring;
2568                 tx_conf->ready = &rx_conf->ready[rx_conf->n_ring];
2569
2570                 rx_conf->n_ring++;
2571         }
2572         return 0;
2573 }
2574
2575 static int
2576 init_rx_queues(void)
2577 {
2578         uint16_t i, nb_rx_queue;
2579         uint8_t thread;
2580
2581         n_rx_thread = 0;
2582
2583         for (i = 0; i < nb_rx_thread_params; ++i) {
2584                 thread = rx_thread_params[i].thread_id;
2585                 nb_rx_queue = rx_thread[thread].n_rx_queue;
2586
2587                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
2588                         printf("error: too many queues (%u) for thread: %u\n",
2589                                 (unsigned)nb_rx_queue + 1, (unsigned)thread);
2590                         return -1;
2591                 }
2592
2593                 rx_thread[thread].conf.thread_id = thread;
2594                 rx_thread[thread].conf.lcore_id = rx_thread_params[i].lcore_id;
2595                 rx_thread[thread].rx_queue_list[nb_rx_queue].port_id =
2596                         rx_thread_params[i].port_id;
2597                 rx_thread[thread].rx_queue_list[nb_rx_queue].queue_id =
2598                         rx_thread_params[i].queue_id;
2599                 rx_thread[thread].n_rx_queue++;
2600
2601                 if (thread >= n_rx_thread)
2602                         n_rx_thread = thread + 1;
2603
2604         }
2605         return 0;
2606 }
2607
2608 static int
2609 init_tx_threads(void)
2610 {
2611         int i;
2612
2613         n_tx_thread = 0;
2614         for (i = 0; i < nb_tx_thread_params; ++i) {
2615                 tx_thread[n_tx_thread].conf.thread_id = tx_thread_params[i].thread_id;
2616                 tx_thread[n_tx_thread].conf.lcore_id = tx_thread_params[i].lcore_id;
2617                 n_tx_thread++;
2618         }
2619         return 0;
2620 }
2621
2622 /* display usage */
2623 static void
2624 print_usage(const char *prgname)
2625 {
2626         printf("%s [EAL options] -- -p PORTMASK -P"
2627                 "  [--rx (port,queue,lcore,thread)[,(port,queue,lcore,thread]]"
2628                 "  [--tx (lcore,thread)[,(lcore,thread]]"
2629                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
2630                 "  [--parse-ptype]\n\n"
2631                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
2632                 "  -P : enable promiscuous mode\n"
2633                 "  --rx (port,queue,lcore,thread): rx queues configuration\n"
2634                 "  --tx (lcore,thread): tx threads configuration\n"
2635                 "  --stat-lcore LCORE: use lcore for stat collector\n"
2636                 "  --eth-dest=X,MM:MM:MM:MM:MM:MM: optional, ethernet destination for port X\n"
2637                 "  --no-numa: optional, disable numa awareness\n"
2638                 "  --ipv6: optional, specify it if running ipv6 packets\n"
2639                 "  --enable-jumbo: enable jumbo frame"
2640                 " which max packet len is PKTLEN in decimal (64-9600)\n"
2641                 "  --hash-entry-num: specify the hash entry number in hexadecimal to be setup\n"
2642                 "  --no-lthreads: turn off lthread model\n"
2643                 "  --parse-ptype: set to use software to analyze packet type\n\n",
2644                 prgname);
2645 }
2646
2647 static int parse_max_pkt_len(const char *pktlen)
2648 {
2649         char *end = NULL;
2650         unsigned long len;
2651
2652         /* parse decimal string */
2653         len = strtoul(pktlen, &end, 10);
2654         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
2655                 return -1;
2656
2657         if (len == 0)
2658                 return -1;
2659
2660         return len;
2661 }
2662
2663 static int
2664 parse_portmask(const char *portmask)
2665 {
2666         char *end = NULL;
2667         unsigned long pm;
2668
2669         /* parse hexadecimal string */
2670         pm = strtoul(portmask, &end, 16);
2671         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
2672                 return -1;
2673
2674         if (pm == 0)
2675                 return -1;
2676
2677         return pm;
2678 }
2679
2680 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2681 static int
2682 parse_hash_entry_number(const char *hash_entry_num)
2683 {
2684         char *end = NULL;
2685         unsigned long hash_en;
2686
2687         /* parse hexadecimal string */
2688         hash_en = strtoul(hash_entry_num, &end, 16);
2689         if ((hash_entry_num[0] == '\0') || (end == NULL) || (*end != '\0'))
2690                 return -1;
2691
2692         if (hash_en == 0)
2693                 return -1;
2694
2695         return hash_en;
2696 }
2697 #endif
2698
2699 static int
2700 parse_rx_config(const char *q_arg)
2701 {
2702         char s[256];
2703         const char *p, *p0 = q_arg;
2704         char *end;
2705         enum fieldnames {
2706                 FLD_PORT = 0,
2707                 FLD_QUEUE,
2708                 FLD_LCORE,
2709                 FLD_THREAD,
2710                 _NUM_FLD
2711         };
2712         unsigned long int_fld[_NUM_FLD];
2713         char *str_fld[_NUM_FLD];
2714         int i;
2715         unsigned size;
2716
2717         nb_rx_thread_params = 0;
2718
2719         while ((p = strchr(p0, '(')) != NULL) {
2720                 ++p;
2721                 p0 = strchr(p, ')');
2722                 if (p0 == NULL)
2723                         return -1;
2724
2725                 size = p0 - p;
2726                 if (size >= sizeof(s))
2727                         return -1;
2728
2729                 snprintf(s, sizeof(s), "%.*s", size, p);
2730                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
2731                         return -1;
2732                 for (i = 0; i < _NUM_FLD; i++) {
2733                         errno = 0;
2734                         int_fld[i] = strtoul(str_fld[i], &end, 0);
2735                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
2736                                 return -1;
2737                 }
2738                 if (nb_rx_thread_params >= MAX_LCORE_PARAMS) {
2739                         printf("exceeded max number of rx params: %hu\n",
2740                                         nb_rx_thread_params);
2741                         return -1;
2742                 }
2743                 rx_thread_params_array[nb_rx_thread_params].port_id =
2744                                 int_fld[FLD_PORT];
2745                 rx_thread_params_array[nb_rx_thread_params].queue_id =
2746                                 (uint8_t)int_fld[FLD_QUEUE];
2747                 rx_thread_params_array[nb_rx_thread_params].lcore_id =
2748                                 (uint8_t)int_fld[FLD_LCORE];
2749                 rx_thread_params_array[nb_rx_thread_params].thread_id =
2750                                 (uint8_t)int_fld[FLD_THREAD];
2751                 ++nb_rx_thread_params;
2752         }
2753         rx_thread_params = rx_thread_params_array;
2754         return 0;
2755 }
2756
2757 static int
2758 parse_tx_config(const char *q_arg)
2759 {
2760         char s[256];
2761         const char *p, *p0 = q_arg;
2762         char *end;
2763         enum fieldnames {
2764                 FLD_LCORE = 0,
2765                 FLD_THREAD,
2766                 _NUM_FLD
2767         };
2768         unsigned long int_fld[_NUM_FLD];
2769         char *str_fld[_NUM_FLD];
2770         int i;
2771         unsigned size;
2772
2773         nb_tx_thread_params = 0;
2774
2775         while ((p = strchr(p0, '(')) != NULL) {
2776                 ++p;
2777                 p0 = strchr(p, ')');
2778                 if (p0 == NULL)
2779                         return -1;
2780
2781                 size = p0 - p;
2782                 if (size >= sizeof(s))
2783                         return -1;
2784
2785                 snprintf(s, sizeof(s), "%.*s", size, p);
2786                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != _NUM_FLD)
2787                         return -1;
2788                 for (i = 0; i < _NUM_FLD; i++) {
2789                         errno = 0;
2790                         int_fld[i] = strtoul(str_fld[i], &end, 0);
2791                         if (errno != 0 || end == str_fld[i] || int_fld[i] > 255)
2792                                 return -1;
2793                 }
2794                 if (nb_tx_thread_params >= MAX_LCORE_PARAMS) {
2795                         printf("exceeded max number of tx params: %hu\n",
2796                                 nb_tx_thread_params);
2797                         return -1;
2798                 }
2799                 tx_thread_params_array[nb_tx_thread_params].lcore_id =
2800                                 (uint8_t)int_fld[FLD_LCORE];
2801                 tx_thread_params_array[nb_tx_thread_params].thread_id =
2802                                 (uint8_t)int_fld[FLD_THREAD];
2803                 ++nb_tx_thread_params;
2804         }
2805         tx_thread_params = tx_thread_params_array;
2806
2807         return 0;
2808 }
2809
2810 #if (APP_CPU_LOAD > 0)
2811 static int
2812 parse_stat_lcore(const char *stat_lcore)
2813 {
2814         char *end = NULL;
2815         unsigned long lcore_id;
2816
2817         lcore_id = strtoul(stat_lcore, &end, 10);
2818         if ((stat_lcore[0] == '\0') || (end == NULL) || (*end != '\0'))
2819                 return -1;
2820
2821         return lcore_id;
2822 }
2823 #endif
2824
2825 static void
2826 parse_eth_dest(const char *optarg)
2827 {
2828         uint16_t portid;
2829         char *port_end;
2830         uint8_t c, *dest, peer_addr[6];
2831
2832         errno = 0;
2833         portid = strtoul(optarg, &port_end, 10);
2834         if (errno != 0 || port_end == optarg || *port_end++ != ',')
2835                 rte_exit(EXIT_FAILURE,
2836                 "Invalid eth-dest: %s", optarg);
2837         if (portid >= RTE_MAX_ETHPORTS)
2838                 rte_exit(EXIT_FAILURE,
2839                 "eth-dest: port %d >= RTE_MAX_ETHPORTS(%d)\n",
2840                 portid, RTE_MAX_ETHPORTS);
2841
2842         if (cmdline_parse_etheraddr(NULL, port_end,
2843                 &peer_addr, sizeof(peer_addr)) < 0)
2844                 rte_exit(EXIT_FAILURE,
2845                 "Invalid ethernet address: %s\n",
2846                 port_end);
2847         dest = (uint8_t *)&dest_eth_addr[portid];
2848         for (c = 0; c < 6; c++)
2849                 dest[c] = peer_addr[c];
2850         *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
2851 }
2852
2853 #define CMD_LINE_OPT_RX_CONFIG "rx"
2854 #define CMD_LINE_OPT_TX_CONFIG "tx"
2855 #define CMD_LINE_OPT_STAT_LCORE "stat-lcore"
2856 #define CMD_LINE_OPT_ETH_DEST "eth-dest"
2857 #define CMD_LINE_OPT_NO_NUMA "no-numa"
2858 #define CMD_LINE_OPT_IPV6 "ipv6"
2859 #define CMD_LINE_OPT_ENABLE_JUMBO "enable-jumbo"
2860 #define CMD_LINE_OPT_HASH_ENTRY_NUM "hash-entry-num"
2861 #define CMD_LINE_OPT_NO_LTHREADS "no-lthreads"
2862 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
2863
2864 /* Parse the argument given in the command line of the application */
2865 static int
2866 parse_args(int argc, char **argv)
2867 {
2868         int opt, ret;
2869         char **argvopt;
2870         int option_index;
2871         char *prgname = argv[0];
2872         static struct option lgopts[] = {
2873                 {CMD_LINE_OPT_RX_CONFIG, 1, 0, 0},
2874                 {CMD_LINE_OPT_TX_CONFIG, 1, 0, 0},
2875                 {CMD_LINE_OPT_STAT_LCORE, 1, 0, 0},
2876                 {CMD_LINE_OPT_ETH_DEST, 1, 0, 0},
2877                 {CMD_LINE_OPT_NO_NUMA, 0, 0, 0},
2878                 {CMD_LINE_OPT_IPV6, 0, 0, 0},
2879                 {CMD_LINE_OPT_ENABLE_JUMBO, 0, 0, 0},
2880                 {CMD_LINE_OPT_HASH_ENTRY_NUM, 1, 0, 0},
2881                 {CMD_LINE_OPT_NO_LTHREADS, 0, 0, 0},
2882                 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
2883                 {NULL, 0, 0, 0}
2884         };
2885
2886         argvopt = argv;
2887
2888         while ((opt = getopt_long(argc, argvopt, "p:P",
2889                                 lgopts, &option_index)) != EOF) {
2890
2891                 switch (opt) {
2892                 /* portmask */
2893                 case 'p':
2894                         enabled_port_mask = parse_portmask(optarg);
2895                         if (enabled_port_mask == 0) {
2896                                 printf("invalid portmask\n");
2897                                 print_usage(prgname);
2898                                 return -1;
2899                         }
2900                         break;
2901                 case 'P':
2902                         printf("Promiscuous mode selected\n");
2903                         promiscuous_on = 1;
2904                         break;
2905
2906                 /* long options */
2907                 case 0:
2908                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_RX_CONFIG,
2909                                 sizeof(CMD_LINE_OPT_RX_CONFIG))) {
2910                                 ret = parse_rx_config(optarg);
2911                                 if (ret) {
2912                                         printf("invalid rx-config\n");
2913                                         print_usage(prgname);
2914                                         return -1;
2915                                 }
2916                         }
2917
2918                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_TX_CONFIG,
2919                                 sizeof(CMD_LINE_OPT_TX_CONFIG))) {
2920                                 ret = parse_tx_config(optarg);
2921                                 if (ret) {
2922                                         printf("invalid tx-config\n");
2923                                         print_usage(prgname);
2924                                         return -1;
2925                                 }
2926                         }
2927
2928 #if (APP_CPU_LOAD > 0)
2929                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_STAT_LCORE,
2930                                         sizeof(CMD_LINE_OPT_STAT_LCORE))) {
2931                                 cpu_load_lcore_id = parse_stat_lcore(optarg);
2932                         }
2933 #endif
2934
2935                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_ETH_DEST,
2936                                 sizeof(CMD_LINE_OPT_ETH_DEST)))
2937                                         parse_eth_dest(optarg);
2938
2939                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_NO_NUMA,
2940                                 sizeof(CMD_LINE_OPT_NO_NUMA))) {
2941                                 printf("numa is disabled\n");
2942                                 numa_on = 0;
2943                         }
2944
2945 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2946                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_IPV6,
2947                                 sizeof(CMD_LINE_OPT_IPV6))) {
2948                                 printf("ipv6 is specified\n");
2949                                 ipv6 = 1;
2950                         }
2951 #endif
2952
2953                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_NO_LTHREADS,
2954                                         sizeof(CMD_LINE_OPT_NO_LTHREADS))) {
2955                                 printf("l-threads model is disabled\n");
2956                                 lthreads_on = 0;
2957                         }
2958
2959                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_PARSE_PTYPE,
2960                                         sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
2961                                 printf("software packet type parsing enabled\n");
2962                                 parse_ptype_on = 1;
2963                         }
2964
2965                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_ENABLE_JUMBO,
2966                                 sizeof(CMD_LINE_OPT_ENABLE_JUMBO))) {
2967                                 struct option lenopts = {"max-pkt-len", required_argument, 0,
2968                                                 0};
2969
2970                                 printf("jumbo frame is enabled - disabling simple TX path\n");
2971                                 port_conf.rxmode.offloads |=
2972                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
2973                                 port_conf.txmode.offloads |=
2974                                                 DEV_TX_OFFLOAD_MULTI_SEGS;
2975
2976                                 /* if no max-pkt-len set, use the default value ETHER_MAX_LEN */
2977                                 if (0 == getopt_long(argc, argvopt, "", &lenopts,
2978                                                 &option_index)) {
2979
2980                                         ret = parse_max_pkt_len(optarg);
2981                                         if ((ret < 64) || (ret > MAX_JUMBO_PKT_LEN)) {
2982                                                 printf("invalid packet length\n");
2983                                                 print_usage(prgname);
2984                                                 return -1;
2985                                         }
2986                                         port_conf.rxmode.max_rx_pkt_len = ret;
2987                                 }
2988                                 printf("set jumbo frame max packet length to %u\n",
2989                                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
2990                         }
2991 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2992                         if (!strncmp(lgopts[option_index].name, CMD_LINE_OPT_HASH_ENTRY_NUM,
2993                                 sizeof(CMD_LINE_OPT_HASH_ENTRY_NUM))) {
2994                                 ret = parse_hash_entry_number(optarg);
2995                                 if ((ret > 0) && (ret <= L3FWD_HASH_ENTRIES)) {
2996                                         hash_entry_number = ret;
2997                                 } else {
2998                                         printf("invalid hash entry number\n");
2999                                         print_usage(prgname);
3000                                         return -1;
3001                                 }
3002                         }
3003 #endif
3004                         break;
3005
3006                 default:
3007                         print_usage(prgname);
3008                         return -1;
3009                 }
3010         }
3011
3012         if (optind >= 0)
3013                 argv[optind-1] = prgname;
3014
3015         ret = optind-1;
3016         optind = 1; /* reset getopt lib */
3017         return ret;
3018 }
3019
3020 static void
3021 print_ethaddr(const char *name, const struct ether_addr *eth_addr)
3022 {
3023         char buf[ETHER_ADDR_FMT_SIZE];
3024
3025         ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr);
3026         printf("%s%s", name, buf);
3027 }
3028
3029 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
3030
3031 static void convert_ipv4_5tuple(struct ipv4_5tuple *key1,
3032                 union ipv4_5tuple_host *key2)
3033 {
3034         key2->ip_dst = rte_cpu_to_be_32(key1->ip_dst);
3035         key2->ip_src = rte_cpu_to_be_32(key1->ip_src);
3036         key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
3037         key2->port_src = rte_cpu_to_be_16(key1->port_src);
3038         key2->proto = key1->proto;
3039         key2->pad0 = 0;
3040         key2->pad1 = 0;
3041 }
3042
3043 static void convert_ipv6_5tuple(struct ipv6_5tuple *key1,
3044                 union ipv6_5tuple_host *key2)
3045 {
3046         uint32_t i;
3047
3048         for (i = 0; i < 16; i++) {
3049                 key2->ip_dst[i] = key1->ip_dst[i];
3050                 key2->ip_src[i] = key1->ip_src[i];
3051         }
3052         key2->port_dst = rte_cpu_to_be_16(key1->port_dst);
3053         key2->port_src = rte_cpu_to_be_16(key1->port_src);
3054         key2->proto = key1->proto;
3055         key2->pad0 = 0;
3056         key2->pad1 = 0;
3057         key2->reserve = 0;
3058 }
3059
3060 #define BYTE_VALUE_MAX 256
3061 #define ALL_32_BITS 0xffffffff
3062 #define BIT_8_TO_15 0x0000ff00
3063 static inline void
3064 populate_ipv4_few_flow_into_table(const struct rte_hash *h)
3065 {
3066         uint32_t i;
3067         int32_t ret;
3068         uint32_t array_len = RTE_DIM(ipv4_l3fwd_route_array);
3069
3070         mask0 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_8_TO_15);
3071         for (i = 0; i < array_len; i++) {
3072                 struct ipv4_l3fwd_route  entry;
3073                 union ipv4_5tuple_host newkey;
3074
3075                 entry = ipv4_l3fwd_route_array[i];
3076                 convert_ipv4_5tuple(&entry.key, &newkey);
3077                 ret = rte_hash_add_key(h, (void *)&newkey);
3078                 if (ret < 0) {
3079                         rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
3080                                 " to the l3fwd hash.\n", i);
3081                 }
3082                 ipv4_l3fwd_out_if[ret] = entry.if_out;
3083         }
3084         printf("Hash: Adding 0x%" PRIx32 " keys\n", array_len);
3085 }
3086
3087 #define BIT_16_TO_23 0x00ff0000
3088 static inline void
3089 populate_ipv6_few_flow_into_table(const struct rte_hash *h)
3090 {
3091         uint32_t i;
3092         int32_t ret;
3093         uint32_t array_len = RTE_DIM(ipv6_l3fwd_route_array);
3094
3095         mask1 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_16_TO_23);
3096         mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
3097         for (i = 0; i < array_len; i++) {
3098                 struct ipv6_l3fwd_route entry;
3099                 union ipv6_5tuple_host newkey;
3100
3101                 entry = ipv6_l3fwd_route_array[i];
3102                 convert_ipv6_5tuple(&entry.key, &newkey);
3103                 ret = rte_hash_add_key(h, (void *)&newkey);
3104                 if (ret < 0) {
3105                         rte_exit(EXIT_FAILURE, "Unable to add entry %" PRIu32
3106                                 " to the l3fwd hash.\n", i);
3107                 }
3108                 ipv6_l3fwd_out_if[ret] = entry.if_out;
3109         }
3110         printf("Hash: Adding 0x%" PRIx32 "keys\n", array_len);
3111 }
3112
3113 #define NUMBER_PORT_USED 4
3114 static inline void
3115 populate_ipv4_many_flow_into_table(const struct rte_hash *h,
3116                 unsigned int nr_flow)
3117 {
3118         unsigned i;
3119
3120         mask0 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_8_TO_15);
3121
3122         for (i = 0; i < nr_flow; i++) {
3123                 struct ipv4_l3fwd_route entry;
3124                 union ipv4_5tuple_host newkey;
3125                 uint8_t a = (uint8_t)((i / NUMBER_PORT_USED) % BYTE_VALUE_MAX);
3126                 uint8_t b = (uint8_t)(((i / NUMBER_PORT_USED) / BYTE_VALUE_MAX) %
3127                                 BYTE_VALUE_MAX);
3128                 uint8_t c = (uint8_t)((i / NUMBER_PORT_USED) / (BYTE_VALUE_MAX *
3129                                 BYTE_VALUE_MAX));
3130                 /* Create the ipv4 exact match flow */
3131                 memset(&entry, 0, sizeof(entry));
3132                 switch (i & (NUMBER_PORT_USED - 1)) {
3133                 case 0:
3134                         entry = ipv4_l3fwd_route_array[0];
3135                         entry.key.ip_dst = IPv4(101, c, b, a);
3136                         break;
3137                 case 1:
3138                         entry = ipv4_l3fwd_route_array[1];
3139                         entry.key.ip_dst = IPv4(201, c, b, a);
3140                         break;
3141                 case 2:
3142                         entry = ipv4_l3fwd_route_array[2];
3143                         entry.key.ip_dst = IPv4(111, c, b, a);
3144                         break;
3145                 case 3:
3146                         entry = ipv4_l3fwd_route_array[3];
3147                         entry.key.ip_dst = IPv4(211, c, b, a);
3148                         break;
3149                 };
3150                 convert_ipv4_5tuple(&entry.key, &newkey);
3151                 int32_t ret = rte_hash_add_key(h, (void *)&newkey);
3152
3153                 if (ret < 0)
3154                         rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
3155
3156                 ipv4_l3fwd_out_if[ret] = (uint8_t)entry.if_out;
3157
3158         }
3159         printf("Hash: Adding 0x%x keys\n", nr_flow);
3160 }
3161
3162 static inline void
3163 populate_ipv6_many_flow_into_table(const struct rte_hash *h,
3164                 unsigned int nr_flow)
3165 {
3166         unsigned i;
3167
3168         mask1 = _mm_set_epi32(ALL_32_BITS, ALL_32_BITS, ALL_32_BITS, BIT_16_TO_23);
3169         mask2 = _mm_set_epi32(0, 0, ALL_32_BITS, ALL_32_BITS);
3170         for (i = 0; i < nr_flow; i++) {
3171                 struct ipv6_l3fwd_route entry;
3172                 union ipv6_5tuple_host newkey;
3173
3174                 uint8_t a = (uint8_t) ((i / NUMBER_PORT_USED) % BYTE_VALUE_MAX);
3175                 uint8_t b = (uint8_t) (((i / NUMBER_PORT_USED) / BYTE_VALUE_MAX) %
3176                                 BYTE_VALUE_MAX);
3177                 uint8_t c = (uint8_t) ((i / NUMBER_PORT_USED) / (BYTE_VALUE_MAX *
3178                                 BYTE_VALUE_MAX));
3179
3180                 /* Create the ipv6 exact match flow */
3181                 memset(&entry, 0, sizeof(entry));
3182                 switch (i & (NUMBER_PORT_USED - 1)) {
3183                 case 0:
3184                         entry = ipv6_l3fwd_route_array[0];
3185                         break;
3186                 case 1:
3187                         entry = ipv6_l3fwd_route_array[1];
3188                         break;
3189                 case 2:
3190                         entry = ipv6_l3fwd_route_array[2];
3191                         break;
3192                 case 3:
3193                         entry = ipv6_l3fwd_route_array[3];
3194                         break;
3195                 };
3196                 entry.key.ip_dst[13] = c;
3197                 entry.key.ip_dst[14] = b;
3198                 entry.key.ip_dst[15] = a;
3199                 convert_ipv6_5tuple(&entry.key, &newkey);
3200                 int32_t ret = rte_hash_add_key(h, (void *)&newkey);
3201
3202                 if (ret < 0)
3203                         rte_exit(EXIT_FAILURE, "Unable to add entry %u\n", i);
3204
3205                 ipv6_l3fwd_out_if[ret] = (uint8_t) entry.if_out;
3206
3207         }
3208         printf("Hash: Adding 0x%x keys\n", nr_flow);
3209 }
3210
3211 static void
3212 setup_hash(int socketid)
3213 {
3214         struct rte_hash_parameters ipv4_l3fwd_hash_params = {
3215                 .name = NULL,
3216                 .entries = L3FWD_HASH_ENTRIES,
3217                 .key_len = sizeof(union ipv4_5tuple_host),
3218                 .hash_func = ipv4_hash_crc,
3219                 .hash_func_init_val = 0,
3220         };
3221
3222         struct rte_hash_parameters ipv6_l3fwd_hash_params = {
3223                 .name = NULL,
3224                 .entries = L3FWD_HASH_ENTRIES,
3225                 .key_len = sizeof(union ipv6_5tuple_host),
3226                 .hash_func = ipv6_hash_crc,
3227                 .hash_func_init_val = 0,
3228         };
3229
3230         char s[64];
3231
3232         /* create ipv4 hash */
3233         snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
3234         ipv4_l3fwd_hash_params.name = s;
3235         ipv4_l3fwd_hash_params.socket_id = socketid;
3236         ipv4_l3fwd_lookup_struct[socketid] =
3237                         rte_hash_create(&ipv4_l3fwd_hash_params);
3238         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
3239                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
3240                                 "socket %d\n", socketid);
3241
3242         /* create ipv6 hash */
3243         snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
3244         ipv6_l3fwd_hash_params.name = s;
3245         ipv6_l3fwd_hash_params.socket_id = socketid;
3246         ipv6_l3fwd_lookup_struct[socketid] =
3247                         rte_hash_create(&ipv6_l3fwd_hash_params);
3248         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
3249                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
3250                                 "socket %d\n", socketid);
3251
3252         if (hash_entry_number != HASH_ENTRY_NUMBER_DEFAULT) {
3253                 /* For testing hash matching with a large number of flows we
3254                  * generate millions of IP 5-tuples with an incremented dst
3255                  * address to initialize the hash table. */
3256                 if (ipv6 == 0) {
3257                         /* populate the ipv4 hash */
3258                         populate_ipv4_many_flow_into_table(
3259                                 ipv4_l3fwd_lookup_struct[socketid], hash_entry_number);
3260                 } else {
3261                         /* populate the ipv6 hash */
3262                         populate_ipv6_many_flow_into_table(
3263                                 ipv6_l3fwd_lookup_struct[socketid], hash_entry_number);
3264                 }
3265         } else {
3266                 /* Use data in ipv4/ipv6 l3fwd lookup table directly to initialize
3267                  * the hash table */
3268                 if (ipv6 == 0) {
3269                         /* populate the ipv4 hash */
3270                         populate_ipv4_few_flow_into_table(
3271                                         ipv4_l3fwd_lookup_struct[socketid]);
3272                 } else {
3273                         /* populate the ipv6 hash */
3274                         populate_ipv6_few_flow_into_table(
3275                                         ipv6_l3fwd_lookup_struct[socketid]);
3276                 }
3277         }
3278 }
3279 #endif
3280
3281 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
3282 static void
3283 setup_lpm(int socketid)
3284 {
3285         struct rte_lpm6_config config;
3286         struct rte_lpm_config lpm_ipv4_config;
3287         unsigned i;
3288         int ret;
3289         char s[64];
3290
3291         /* create the LPM table */
3292         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
3293         lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
3294         lpm_ipv4_config.number_tbl8s = 256;
3295         lpm_ipv4_config.flags = 0;
3296         ipv4_l3fwd_lookup_struct[socketid] =
3297                         rte_lpm_create(s, socketid, &lpm_ipv4_config);
3298         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
3299                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
3300                                 " on socket %d\n", socketid);
3301
3302         /* populate the LPM table */
3303         for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) {
3304
3305                 /* skip unused ports */
3306                 if ((1 << ipv4_l3fwd_route_array[i].if_out &
3307                                 enabled_port_mask) == 0)
3308                         continue;
3309
3310                 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
3311                         ipv4_l3fwd_route_array[i].ip,
3312                         ipv4_l3fwd_route_array[i].depth,
3313                         ipv4_l3fwd_route_array[i].if_out);
3314
3315                 if (ret < 0) {
3316                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
3317                                 "l3fwd LPM table on socket %d\n",
3318                                 i, socketid);
3319                 }
3320
3321                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
3322                         (unsigned)ipv4_l3fwd_route_array[i].ip,
3323                         ipv4_l3fwd_route_array[i].depth,
3324                         ipv4_l3fwd_route_array[i].if_out);
3325         }
3326
3327         /* create the LPM6 table */
3328         snprintf(s, sizeof(s), "IPV6_L3FWD_LPM_%d", socketid);
3329
3330         config.max_rules = IPV6_L3FWD_LPM_MAX_RULES;
3331         config.number_tbl8s = IPV6_L3FWD_LPM_NUMBER_TBL8S;
3332         config.flags = 0;
3333         ipv6_l3fwd_lookup_struct[socketid] = rte_lpm6_create(s, socketid,
3334                                 &config);
3335         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
3336                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
3337                                 " on socket %d\n", socketid);
3338
3339         /* populate the LPM table */
3340         for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) {
3341
3342                 /* skip unused ports */
3343                 if ((1 << ipv6_l3fwd_route_array[i].if_out &
3344                                 enabled_port_mask) == 0)
3345                         continue;
3346
3347                 ret = rte_lpm6_add(ipv6_l3fwd_lookup_struct[socketid],
3348                         ipv6_l3fwd_route_array[i].ip,
3349                         ipv6_l3fwd_route_array[i].depth,
3350                         ipv6_l3fwd_route_array[i].if_out);
3351
3352                 if (ret < 0) {
3353                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
3354                                 "l3fwd LPM table on socket %d\n",
3355                                 i, socketid);
3356                 }
3357
3358                 printf("LPM: Adding route %s / %d (%d)\n",
3359                         "IPV6",
3360                         ipv6_l3fwd_route_array[i].depth,
3361                         ipv6_l3fwd_route_array[i].if_out);
3362         }
3363 }
3364 #endif
3365
3366 static int
3367 init_mem(unsigned nb_mbuf)
3368 {
3369         struct lcore_conf *qconf;
3370         int socketid;
3371         unsigned lcore_id;
3372         char s[64];
3373
3374         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
3375                 if (rte_lcore_is_enabled(lcore_id) == 0)
3376                         continue;
3377
3378                 if (numa_on)
3379                         socketid = rte_lcore_to_socket_id(lcore_id);
3380                 else
3381                         socketid = 0;
3382
3383                 if (socketid >= NB_SOCKETS) {
3384                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is out of range %d\n",
3385                                 socketid, lcore_id, NB_SOCKETS);
3386                 }
3387                 if (pktmbuf_pool[socketid] == NULL) {
3388                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
3389                         pktmbuf_pool[socketid] =
3390                                 rte_pktmbuf_pool_create(s, nb_mbuf,
3391                                         MEMPOOL_CACHE_SIZE, 0,
3392                                         RTE_MBUF_DEFAULT_BUF_SIZE, socketid);
3393                         if (pktmbuf_pool[socketid] == NULL)
3394                                 rte_exit(EXIT_FAILURE,
3395                                                 "Cannot init mbuf pool on socket %d\n", socketid);
3396                         else
3397                                 printf("Allocated mbuf pool on socket %d\n", socketid);
3398
3399 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
3400                         setup_lpm(socketid);
3401 #else
3402                         setup_hash(socketid);
3403 #endif
3404                 }
3405                 qconf = &lcore_conf[lcore_id];
3406                 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
3407                 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
3408         }
3409         return 0;
3410 }
3411
3412 /* Check the link status of all ports in up to 9s, and print them finally */
3413 static void
3414 check_all_ports_link_status(uint16_t port_num, uint32_t port_mask)
3415 {
3416 #define CHECK_INTERVAL 100 /* 100ms */
3417 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
3418         uint16_t portid;
3419         uint8_t count, all_ports_up, print_flag = 0;
3420         struct rte_eth_link link;
3421
3422         printf("\nChecking link status");
3423         fflush(stdout);
3424         for (count = 0; count <= MAX_CHECK_TIME; count++) {
3425                 all_ports_up = 1;
3426                 for (portid = 0; portid < port_num; portid++) {
3427                         if ((port_mask & (1 << portid)) == 0)
3428                                 continue;
3429                         memset(&link, 0, sizeof(link));
3430                         rte_eth_link_get_nowait(portid, &link);
3431                         /* print link status if flag set */
3432                         if (print_flag == 1) {
3433                                 if (link.link_status)
3434                                         printf(
3435                                         "Port%d Link Up. Speed %u Mbps - %s\n",
3436                                                 portid, link.link_speed,
3437                                 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
3438                                         ("full-duplex") : ("half-duplex\n"));
3439                                 else
3440                                         printf("Port %d Link Down\n", portid);
3441                                 continue;
3442                         }
3443                         /* clear all_ports_up flag if any link down */
3444                         if (link.link_status == ETH_LINK_DOWN) {
3445                                 all_ports_up = 0;
3446                                 break;
3447                         }
3448                 }
3449                 /* after finally printing all link status, get out */
3450                 if (print_flag == 1)
3451                         break;
3452
3453                 if (all_ports_up == 0) {
3454                         printf(".");
3455                         fflush(stdout);
3456                         rte_delay_ms(CHECK_INTERVAL);
3457                 }
3458
3459                 /* set the print_flag if all ports up or timeout */
3460                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
3461                         print_flag = 1;
3462                         printf("done\n");
3463                 }
3464         }
3465 }
3466
3467 int
3468 main(int argc, char **argv)
3469 {
3470         struct rte_eth_dev_info dev_info;
3471         struct rte_eth_txconf *txconf;
3472         int ret;
3473         int i;
3474         unsigned nb_ports;
3475         uint16_t queueid, portid;
3476         unsigned lcore_id;
3477         uint32_t n_tx_queue, nb_lcores;
3478         uint8_t nb_rx_queue, queue, socketid;
3479
3480         /* init EAL */
3481         ret = rte_eal_init(argc, argv);
3482         if (ret < 0)
3483                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
3484         argc -= ret;
3485         argv += ret;
3486
3487         /* pre-init dst MACs for all ports to 02:00:00:00:00:xx */
3488         for (portid = 0; portid < RTE_MAX_ETHPORTS; portid++) {
3489                 dest_eth_addr[portid] = ETHER_LOCAL_ADMIN_ADDR +
3490                                 ((uint64_t)portid << 40);
3491                 *(uint64_t *)(val_eth + portid) = dest_eth_addr[portid];
3492         }
3493
3494         /* parse application arguments (after the EAL ones) */
3495         ret = parse_args(argc, argv);
3496         if (ret < 0)
3497                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
3498
3499         if (check_lcore_params() < 0)
3500                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
3501
3502         printf("Initializing rx-queues...\n");
3503         ret = init_rx_queues();
3504         if (ret < 0)
3505                 rte_exit(EXIT_FAILURE, "init_rx_queues failed\n");
3506
3507         printf("Initializing tx-threads...\n");
3508         ret = init_tx_threads();
3509         if (ret < 0)
3510                 rte_exit(EXIT_FAILURE, "init_tx_threads failed\n");
3511
3512         printf("Initializing rings...\n");
3513         ret = init_rx_rings();
3514         if (ret < 0)
3515                 rte_exit(EXIT_FAILURE, "init_rx_rings failed\n");
3516
3517         nb_ports = rte_eth_dev_count();
3518
3519         if (check_port_config(nb_ports) < 0)
3520                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
3521
3522         nb_lcores = rte_lcore_count();
3523
3524         /* initialize all ports */
3525         for (portid = 0; portid < nb_ports; portid++) {
3526                 struct rte_eth_conf local_port_conf = port_conf;
3527
3528                 /* skip ports that are not enabled */
3529                 if ((enabled_port_mask & (1 << portid)) == 0) {
3530                         printf("\nSkipping disabled port %d\n", portid);
3531                         continue;
3532                 }
3533
3534                 /* init port */
3535                 printf("Initializing port %d ... ", portid);
3536                 fflush(stdout);
3537
3538                 nb_rx_queue = get_port_n_rx_queues(portid);
3539                 n_tx_queue = nb_lcores;
3540                 if (n_tx_queue > MAX_TX_QUEUE_PER_PORT)
3541                         n_tx_queue = MAX_TX_QUEUE_PER_PORT;
3542                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
3543                         nb_rx_queue, (unsigned)n_tx_queue);
3544                 rte_eth_dev_info_get(portid, &dev_info);
3545                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
3546                         local_port_conf.txmode.offloads |=
3547                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
3548                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
3549                                         (uint16_t)n_tx_queue, &local_port_conf);
3550                 if (ret < 0)
3551                         rte_exit(EXIT_FAILURE, "Cannot configure device: err=%d, port=%d\n",
3552                                 ret, portid);
3553
3554                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
3555                                                        &nb_txd);
3556                 if (ret < 0)
3557                         rte_exit(EXIT_FAILURE,
3558                                  "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d, port=%d\n",
3559                                  ret, portid);
3560
3561                 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
3562                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
3563                 printf(", ");
3564                 print_ethaddr("Destination:",
3565                         (const struct ether_addr *)&dest_eth_addr[portid]);
3566                 printf(", ");
3567
3568                 /*
3569                  * prepare src MACs for each port.
3570                  */
3571                 ether_addr_copy(&ports_eth_addr[portid],
3572                         (struct ether_addr *)(val_eth + portid) + 1);
3573
3574                 /* init memory */
3575                 ret = init_mem(NB_MBUF);
3576                 if (ret < 0)
3577                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
3578
3579                 /* init one TX queue per couple (lcore,port) */
3580                 queueid = 0;
3581                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
3582                         if (rte_lcore_is_enabled(lcore_id) == 0)
3583                                 continue;
3584
3585                         if (numa_on)
3586                                 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
3587                         else
3588                                 socketid = 0;
3589
3590                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
3591                         fflush(stdout);
3592
3593                         txconf = &dev_info.default_txconf;
3594                         txconf->txq_flags = ETH_TXQ_FLAGS_IGNORE;
3595                         txconf->offloads = local_port_conf.txmode.offloads;
3596                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
3597                                                      socketid, txconf);
3598                         if (ret < 0)
3599                                 rte_exit(EXIT_FAILURE, "rte_eth_tx_queue_setup: err=%d, "
3600                                         "port=%d\n", ret, portid);
3601
3602                         tx_thread[lcore_id].tx_queue_id[portid] = queueid;
3603                         queueid++;
3604                 }
3605                 printf("\n");
3606         }
3607
3608         for (i = 0; i < n_rx_thread; i++) {
3609                 lcore_id = rx_thread[i].conf.lcore_id;
3610
3611                 if (rte_lcore_is_enabled(lcore_id) == 0) {
3612                         rte_exit(EXIT_FAILURE,
3613                                         "Cannot start Rx thread on lcore %u: lcore disabled\n",
3614                                         lcore_id
3615                                 );
3616                 }
3617
3618                 printf("\nInitializing rx queues for Rx thread %d on lcore %u ... ",
3619                                 i, lcore_id);
3620                 fflush(stdout);
3621
3622                 /* init RX queues */
3623                 for (queue = 0; queue < rx_thread[i].n_rx_queue; ++queue) {
3624                         struct rte_eth_dev *dev;
3625                         struct rte_eth_conf *conf;
3626                         struct rte_eth_rxconf rxq_conf;
3627
3628                         portid = rx_thread[i].rx_queue_list[queue].port_id;
3629                         queueid = rx_thread[i].rx_queue_list[queue].queue_id;
3630                         dev = &rte_eth_devices[portid];
3631                         conf = &dev->data->dev_conf;
3632
3633                         if (numa_on)
3634                                 socketid = (uint8_t)rte_lcore_to_socket_id(lcore_id);
3635                         else
3636                                 socketid = 0;
3637
3638                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
3639                         fflush(stdout);
3640
3641                         rte_eth_dev_info_get(portid, &dev_info);
3642                         rxq_conf = dev_info.default_rxconf;
3643                         rxq_conf.offloads = conf->rxmode.offloads;
3644                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
3645                                         socketid,
3646                                         &rxq_conf,
3647                                         pktmbuf_pool[socketid]);
3648                         if (ret < 0)
3649                                 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d, "
3650                                                 "port=%d\n", ret, portid);
3651                 }
3652         }
3653
3654         printf("\n");
3655
3656         /* start ports */
3657         for (portid = 0; portid < nb_ports; portid++) {
3658                 if ((enabled_port_mask & (1 << portid)) == 0)
3659                         continue;
3660
3661                 /* Start device */
3662                 ret = rte_eth_dev_start(portid);
3663                 if (ret < 0)
3664                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, port=%d\n",
3665                                 ret, portid);
3666
3667                 /*
3668                  * If enabled, put device in promiscuous mode.
3669                  * This allows IO forwarding mode to forward packets
3670                  * to itself through 2 cross-connected  ports of the
3671                  * target machine.
3672                  */
3673                 if (promiscuous_on)
3674                         rte_eth_promiscuous_enable(portid);
3675         }
3676
3677         for (i = 0; i < n_rx_thread; i++) {
3678                 lcore_id = rx_thread[i].conf.lcore_id;
3679                 if (rte_lcore_is_enabled(lcore_id) == 0)
3680                         continue;
3681
3682                 /* check if hw packet type is supported */
3683                 for (queue = 0; queue < rx_thread[i].n_rx_queue; ++queue) {
3684                         portid = rx_thread[i].rx_queue_list[queue].port_id;
3685                         queueid = rx_thread[i].rx_queue_list[queue].queue_id;
3686
3687                         if (parse_ptype_on) {
3688                                 if (!rte_eth_add_rx_callback(portid, queueid,
3689                                                 cb_parse_ptype, NULL))
3690                                         rte_exit(EXIT_FAILURE,
3691                                                 "Failed to add rx callback: "
3692                                                 "port=%d\n", portid);
3693                         } else if (!check_ptype(portid))
3694                                 rte_exit(EXIT_FAILURE,
3695                                         "Port %d cannot parse packet type.\n\n"
3696                                         "Please add --parse-ptype to use sw "
3697                                         "packet type analyzer.\n\n",
3698                                         portid);
3699                 }
3700         }
3701
3702         check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask);
3703
3704         if (lthreads_on) {
3705                 printf("Starting L-Threading Model\n");
3706
3707 #if (APP_CPU_LOAD > 0)
3708                 if (cpu_load_lcore_id > 0)
3709                         /* Use one lcore for cpu load collector */
3710                         nb_lcores--;
3711 #endif
3712
3713                 lthread_num_schedulers_set(nb_lcores);
3714                 rte_eal_mp_remote_launch(sched_spawner, NULL, SKIP_MASTER);
3715                 lthread_master_spawner(NULL);
3716
3717         } else {
3718                 printf("Starting P-Threading Model\n");
3719                 /* launch per-lcore init on every lcore */
3720                 rte_eal_mp_remote_launch(pthread_run, NULL, CALL_MASTER);
3721                 RTE_LCORE_FOREACH_SLAVE(lcore_id) {
3722                         if (rte_eal_wait_lcore(lcore_id) < 0)
3723                                 return -1;
3724                 }
3725         }
3726
3727         return 0;
3728 }