1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2016 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <stdio.h> 35 #include <stdlib.h> 36 #include <stdint.h> 37 #include <inttypes.h> 38 #include <sys/types.h> 39 #include <string.h> 40 #include <sys/queue.h> 41 #include <stdarg.h> 42 #include <errno.h> 43 #include <getopt.h> 44 #include <unistd.h> 45 #include <signal.h> 46 47 #include <rte_common.h> 48 #include <rte_byteorder.h> 49 #include <rte_log.h> 50 #include <rte_malloc.h> 51 #include <rte_memory.h> 52 #include <rte_memcpy.h> 53 #include <rte_memzone.h> 54 #include <rte_eal.h> 55 #include <rte_per_lcore.h> 56 #include <rte_launch.h> 57 #include <rte_atomic.h> 58 #include <rte_cycles.h> 59 #include <rte_prefetch.h> 60 #include <rte_lcore.h> 61 #include <rte_per_lcore.h> 62 #include <rte_branch_prediction.h> 63 #include <rte_interrupts.h> 64 #include <rte_pci.h> 65 #include <rte_random.h> 66 #include <rte_debug.h> 67 #include <rte_ether.h> 68 #include <rte_ethdev.h> 69 #include <rte_mempool.h> 70 #include <rte_mbuf.h> 71 #include <rte_ip.h> 72 #include <rte_tcp.h> 73 #include <rte_udp.h> 74 #include <rte_string_fns.h> 75 #include <rte_timer.h> 76 #include <rte_power.h> 77 #include <rte_eal.h> 78 #include <rte_spinlock.h> 79 80 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1 81 82 #define MAX_PKT_BURST 32 83 84 #define MIN_ZERO_POLL_COUNT 10 85 86 /* around 100ms at 2 Ghz */ 87 #define TIMER_RESOLUTION_CYCLES 200000000ULL 88 /* 100 ms interval */ 89 #define TIMER_NUMBER_PER_SECOND 10 90 /* 100000 us */ 91 #define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND) 92 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25 93 94 #define APP_LOOKUP_EXACT_MATCH 0 95 #define APP_LOOKUP_LPM 1 96 #define DO_RFC_1812_CHECKS 97 98 #ifndef APP_LOOKUP_METHOD 99 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM 100 #endif 101 102 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 103 #include <rte_hash.h> 104 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 105 #include <rte_lpm.h> 106 #else 107 #error "APP_LOOKUP_METHOD set to incorrect value" 108 #endif 109 110 #ifndef IPv6_BYTES 111 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\ 112 "%02x%02x:%02x%02x:%02x%02x:%02x%02x" 113 #define IPv6_BYTES(addr) \ 114 addr[0], addr[1], addr[2], addr[3], \ 115 addr[4], addr[5], addr[6], addr[7], \ 116 addr[8], addr[9], addr[10], addr[11],\ 117 addr[12], addr[13],addr[14], addr[15] 118 #endif 119 120 #define MAX_JUMBO_PKT_LEN 9600 121 122 #define IPV6_ADDR_LEN 16 123 124 #define MEMPOOL_CACHE_SIZE 256 125 126 /* 127 * This expression is used to calculate the number of mbufs needed depending on 128 * user input, taking into account memory for rx and tx hardware rings, cache 129 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that 130 * NB_MBUF never goes below a minimum value of 8192. 131 */ 132 133 #define NB_MBUF RTE_MAX ( \ 134 (nb_ports*nb_rx_queue*RTE_TEST_RX_DESC_DEFAULT + \ 135 nb_ports*nb_lcores*MAX_PKT_BURST + \ 136 nb_ports*n_tx_queue*RTE_TEST_TX_DESC_DEFAULT + \ 137 nb_lcores*MEMPOOL_CACHE_SIZE), \ 138 (unsigned)8192) 139 140 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 141 142 #define NB_SOCKETS 8 143 144 /* Configure how many packets ahead to prefetch, when reading packets */ 145 #define PREFETCH_OFFSET 3 146 147 /* 148 * Configurable number of RX/TX ring descriptors 149 */ 150 #define RTE_TEST_RX_DESC_DEFAULT 512 151 #define RTE_TEST_TX_DESC_DEFAULT 512 152 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 153 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 154 155 /* ethernet addresses of ports */ 156 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS]; 157 158 /* ethernet addresses of ports */ 159 static rte_spinlock_t locks[RTE_MAX_ETHPORTS]; 160 161 /* mask of enabled ports */ 162 static uint32_t enabled_port_mask = 0; 163 /* Ports set in promiscuous mode off by default. */ 164 static int promiscuous_on = 0; 165 /* NUMA is enabled by default. */ 166 static int numa_on = 1; 167 static int parse_ptype; /**< Parse packet type using rx callback, and */ 168 /**< disabled by default */ 169 170 enum freq_scale_hint_t 171 { 172 FREQ_LOWER = -1, 173 FREQ_CURRENT = 0, 174 FREQ_HIGHER = 1, 175 FREQ_HIGHEST = 2 176 }; 177 178 struct lcore_rx_queue { 179 uint8_t port_id; 180 uint8_t queue_id; 181 enum freq_scale_hint_t freq_up_hint; 182 uint32_t zero_rx_packet_count; 183 uint32_t idle_hint; 184 } __rte_cache_aligned; 185 186 #define MAX_RX_QUEUE_PER_LCORE 16 187 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS 188 #define MAX_RX_QUEUE_PER_PORT 128 189 190 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16 191 192 193 #define MAX_LCORE_PARAMS 1024 194 struct lcore_params { 195 uint8_t port_id; 196 uint8_t queue_id; 197 uint8_t lcore_id; 198 } __rte_cache_aligned; 199 200 static struct lcore_params lcore_params_array[MAX_LCORE_PARAMS]; 201 static struct lcore_params lcore_params_array_default[] = { 202 {0, 0, 2}, 203 {0, 1, 2}, 204 {0, 2, 2}, 205 {1, 0, 2}, 206 {1, 1, 2}, 207 {1, 2, 2}, 208 {2, 0, 2}, 209 {3, 0, 3}, 210 {3, 1, 3}, 211 }; 212 213 static struct lcore_params * lcore_params = lcore_params_array_default; 214 static uint16_t nb_lcore_params = sizeof(lcore_params_array_default) / 215 sizeof(lcore_params_array_default[0]); 216 217 static struct rte_eth_conf port_conf = { 218 .rxmode = { 219 .mq_mode = ETH_MQ_RX_RSS, 220 .max_rx_pkt_len = ETHER_MAX_LEN, 221 .split_hdr_size = 0, 222 .header_split = 0, /**< Header Split disabled */ 223 .hw_ip_checksum = 1, /**< IP checksum offload enabled */ 224 .hw_vlan_filter = 0, /**< VLAN filtering disabled */ 225 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ 226 .hw_strip_crc = 1, /**< CRC stripped by hardware */ 227 }, 228 .rx_adv_conf = { 229 .rss_conf = { 230 .rss_key = NULL, 231 .rss_hf = ETH_RSS_UDP, 232 }, 233 }, 234 .txmode = { 235 .mq_mode = ETH_MQ_TX_NONE, 236 }, 237 .intr_conf = { 238 .lsc = 1, 239 .rxq = 1, 240 }, 241 }; 242 243 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS]; 244 245 246 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 247 248 #ifdef RTE_ARCH_X86 249 #include <rte_hash_crc.h> 250 #define DEFAULT_HASH_FUNC rte_hash_crc 251 #else 252 #include <rte_jhash.h> 253 #define DEFAULT_HASH_FUNC rte_jhash 254 #endif 255 256 struct ipv4_5tuple { 257 uint32_t ip_dst; 258 uint32_t ip_src; 259 uint16_t port_dst; 260 uint16_t port_src; 261 uint8_t proto; 262 } __attribute__((__packed__)); 263 264 struct ipv6_5tuple { 265 uint8_t ip_dst[IPV6_ADDR_LEN]; 266 uint8_t ip_src[IPV6_ADDR_LEN]; 267 uint16_t port_dst; 268 uint16_t port_src; 269 uint8_t proto; 270 } __attribute__((__packed__)); 271 272 struct ipv4_l3fwd_route { 273 struct ipv4_5tuple key; 274 uint8_t if_out; 275 }; 276 277 struct ipv6_l3fwd_route { 278 struct ipv6_5tuple key; 279 uint8_t if_out; 280 }; 281 282 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = { 283 {{IPv4(100,10,0,1), IPv4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0}, 284 {{IPv4(100,20,0,2), IPv4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1}, 285 {{IPv4(100,30,0,3), IPv4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2}, 286 {{IPv4(100,40,0,4), IPv4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3}, 287 }; 288 289 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = { 290 { 291 { 292 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 293 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05}, 294 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 295 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a}, 296 1, 10, IPPROTO_UDP 297 }, 4 298 }, 299 }; 300 301 typedef struct rte_hash lookup_struct_t; 302 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS]; 303 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS]; 304 305 #define L3FWD_HASH_ENTRIES 1024 306 307 #define IPV4_L3FWD_NUM_ROUTES \ 308 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0])) 309 310 #define IPV6_L3FWD_NUM_ROUTES \ 311 (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0])) 312 313 static uint8_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned; 314 static uint8_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned; 315 #endif 316 317 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 318 struct ipv4_l3fwd_route { 319 uint32_t ip; 320 uint8_t depth; 321 uint8_t if_out; 322 }; 323 324 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = { 325 {IPv4(1,1,1,0), 24, 0}, 326 {IPv4(2,1,1,0), 24, 1}, 327 {IPv4(3,1,1,0), 24, 2}, 328 {IPv4(4,1,1,0), 24, 3}, 329 {IPv4(5,1,1,0), 24, 4}, 330 {IPv4(6,1,1,0), 24, 5}, 331 {IPv4(7,1,1,0), 24, 6}, 332 {IPv4(8,1,1,0), 24, 7}, 333 }; 334 335 #define IPV4_L3FWD_NUM_ROUTES \ 336 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0])) 337 338 #define IPV4_L3FWD_LPM_MAX_RULES 1024 339 340 typedef struct rte_lpm lookup_struct_t; 341 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS]; 342 #endif 343 344 struct lcore_conf { 345 uint16_t n_rx_queue; 346 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; 347 uint16_t n_tx_port; 348 uint16_t tx_port_id[RTE_MAX_ETHPORTS]; 349 uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; 350 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 351 lookup_struct_t * ipv4_lookup_struct; 352 lookup_struct_t * ipv6_lookup_struct; 353 } __rte_cache_aligned; 354 355 struct lcore_stats { 356 /* total sleep time in ms since last frequency scaling down */ 357 uint32_t sleep_time; 358 /* number of long sleep recently */ 359 uint32_t nb_long_sleep; 360 /* freq. scaling up trend */ 361 uint32_t trend; 362 /* total packet processed recently */ 363 uint64_t nb_rx_processed; 364 /* total iterations looped recently */ 365 uint64_t nb_iteration_looped; 366 uint32_t padding[9]; 367 } __rte_cache_aligned; 368 369 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned; 370 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned; 371 static struct rte_timer power_timers[RTE_MAX_LCORE]; 372 373 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count); 374 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \ 375 unsigned lcore_id, uint8_t port_id, uint16_t queue_id); 376 377 /* exit signal handler */ 378 static void 379 signal_exit_now(int sigtype) 380 { 381 unsigned lcore_id; 382 unsigned int portid, nb_ports; 383 int ret; 384 385 if (sigtype == SIGINT) { 386 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 387 if (rte_lcore_is_enabled(lcore_id) == 0) 388 continue; 389 390 /* init power management library */ 391 ret = rte_power_exit(lcore_id); 392 if (ret) 393 rte_exit(EXIT_FAILURE, "Power management " 394 "library de-initialization failed on " 395 "core%u\n", lcore_id); 396 } 397 398 nb_ports = rte_eth_dev_count(); 399 for (portid = 0; portid < nb_ports; portid++) { 400 if ((enabled_port_mask & (1 << portid)) == 0) 401 continue; 402 403 rte_eth_dev_stop(portid); 404 rte_eth_dev_close(portid); 405 } 406 } 407 408 rte_exit(EXIT_SUCCESS, "User forced exit\n"); 409 } 410 411 /* Freqency scale down timer callback */ 412 static void 413 power_timer_cb(__attribute__((unused)) struct rte_timer *tim, 414 __attribute__((unused)) void *arg) 415 { 416 uint64_t hz; 417 float sleep_time_ratio; 418 unsigned lcore_id = rte_lcore_id(); 419 420 /* accumulate total execution time in us when callback is invoked */ 421 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) / 422 (float)SCALING_PERIOD; 423 /** 424 * check whether need to scale down frequency a step if it sleep a lot. 425 */ 426 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) { 427 if (rte_power_freq_down) 428 rte_power_freq_down(lcore_id); 429 } 430 else if ( (unsigned)(stats[lcore_id].nb_rx_processed / 431 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) { 432 /** 433 * scale down a step if average packet per iteration less 434 * than expectation. 435 */ 436 if (rte_power_freq_down) 437 rte_power_freq_down(lcore_id); 438 } 439 440 /** 441 * initialize another timer according to current frequency to ensure 442 * timer interval is relatively fixed. 443 */ 444 hz = rte_get_timer_hz(); 445 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND, 446 SINGLE, lcore_id, power_timer_cb, NULL); 447 448 stats[lcore_id].nb_rx_processed = 0; 449 stats[lcore_id].nb_iteration_looped = 0; 450 451 stats[lcore_id].sleep_time = 0; 452 } 453 454 /* Enqueue a single packet, and send burst if queue is filled */ 455 static inline int 456 send_single_packet(struct rte_mbuf *m, uint8_t port) 457 { 458 uint32_t lcore_id; 459 struct lcore_conf *qconf; 460 461 lcore_id = rte_lcore_id(); 462 qconf = &lcore_conf[lcore_id]; 463 464 rte_eth_tx_buffer(port, qconf->tx_queue_id[port], 465 qconf->tx_buffer[port], m); 466 467 return 0; 468 } 469 470 #ifdef DO_RFC_1812_CHECKS 471 static inline int 472 is_valid_ipv4_pkt(struct ipv4_hdr *pkt, uint32_t link_len) 473 { 474 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */ 475 /* 476 * 1. The packet length reported by the Link Layer must be large 477 * enough to hold the minimum length legal IP datagram (20 bytes). 478 */ 479 if (link_len < sizeof(struct ipv4_hdr)) 480 return -1; 481 482 /* 2. The IP checksum must be correct. */ 483 /* this is checked in H/W */ 484 485 /* 486 * 3. The IP version number must be 4. If the version number is not 4 487 * then the packet may be another version of IP, such as IPng or 488 * ST-II. 489 */ 490 if (((pkt->version_ihl) >> 4) != 4) 491 return -3; 492 /* 493 * 4. The IP header length field must be large enough to hold the 494 * minimum length legal IP datagram (20 bytes = 5 words). 495 */ 496 if ((pkt->version_ihl & 0xf) < 5) 497 return -4; 498 499 /* 500 * 5. The IP total length field must be large enough to hold the IP 501 * datagram header, whose length is specified in the IP header length 502 * field. 503 */ 504 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct ipv4_hdr)) 505 return -5; 506 507 return 0; 508 } 509 #endif 510 511 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 512 static void 513 print_ipv4_key(struct ipv4_5tuple key) 514 { 515 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, " 516 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src, 517 key.port_dst, key.port_src, key.proto); 518 } 519 static void 520 print_ipv6_key(struct ipv6_5tuple key) 521 { 522 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", " 523 "port dst = %d, port src = %d, proto = %d\n", 524 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src), 525 key.port_dst, key.port_src, key.proto); 526 } 527 528 static inline uint8_t 529 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, 530 lookup_struct_t * ipv4_l3fwd_lookup_struct) 531 { 532 struct ipv4_5tuple key; 533 struct tcp_hdr *tcp; 534 struct udp_hdr *udp; 535 int ret = 0; 536 537 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr); 538 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr); 539 key.proto = ipv4_hdr->next_proto_id; 540 541 switch (ipv4_hdr->next_proto_id) { 542 case IPPROTO_TCP: 543 tcp = (struct tcp_hdr *)((unsigned char *)ipv4_hdr + 544 sizeof(struct ipv4_hdr)); 545 key.port_dst = rte_be_to_cpu_16(tcp->dst_port); 546 key.port_src = rte_be_to_cpu_16(tcp->src_port); 547 break; 548 549 case IPPROTO_UDP: 550 udp = (struct udp_hdr *)((unsigned char *)ipv4_hdr + 551 sizeof(struct ipv4_hdr)); 552 key.port_dst = rte_be_to_cpu_16(udp->dst_port); 553 key.port_src = rte_be_to_cpu_16(udp->src_port); 554 break; 555 556 default: 557 key.port_dst = 0; 558 key.port_src = 0; 559 break; 560 } 561 562 /* Find destination port */ 563 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key); 564 return (uint8_t)((ret < 0)? portid : ipv4_l3fwd_out_if[ret]); 565 } 566 567 static inline uint8_t 568 get_ipv6_dst_port(struct ipv6_hdr *ipv6_hdr, uint8_t portid, 569 lookup_struct_t *ipv6_l3fwd_lookup_struct) 570 { 571 struct ipv6_5tuple key; 572 struct tcp_hdr *tcp; 573 struct udp_hdr *udp; 574 int ret = 0; 575 576 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN); 577 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN); 578 579 key.proto = ipv6_hdr->proto; 580 581 switch (ipv6_hdr->proto) { 582 case IPPROTO_TCP: 583 tcp = (struct tcp_hdr *)((unsigned char *) ipv6_hdr + 584 sizeof(struct ipv6_hdr)); 585 key.port_dst = rte_be_to_cpu_16(tcp->dst_port); 586 key.port_src = rte_be_to_cpu_16(tcp->src_port); 587 break; 588 589 case IPPROTO_UDP: 590 udp = (struct udp_hdr *)((unsigned char *) ipv6_hdr + 591 sizeof(struct ipv6_hdr)); 592 key.port_dst = rte_be_to_cpu_16(udp->dst_port); 593 key.port_src = rte_be_to_cpu_16(udp->src_port); 594 break; 595 596 default: 597 key.port_dst = 0; 598 key.port_src = 0; 599 break; 600 } 601 602 /* Find destination port */ 603 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key); 604 return (uint8_t)((ret < 0)? portid : ipv6_l3fwd_out_if[ret]); 605 } 606 #endif 607 608 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 609 static inline uint8_t 610 get_ipv4_dst_port(struct ipv4_hdr *ipv4_hdr, uint8_t portid, 611 lookup_struct_t *ipv4_l3fwd_lookup_struct) 612 { 613 uint32_t next_hop; 614 615 return (uint8_t) ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct, 616 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)? 617 next_hop : portid); 618 } 619 #endif 620 621 static inline void 622 parse_ptype_one(struct rte_mbuf *m) 623 { 624 struct ether_hdr *eth_hdr; 625 uint32_t packet_type = RTE_PTYPE_UNKNOWN; 626 uint16_t ether_type; 627 628 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 629 ether_type = eth_hdr->ether_type; 630 if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv4)) 631 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN; 632 else if (ether_type == rte_cpu_to_be_16(ETHER_TYPE_IPv6)) 633 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN; 634 635 m->packet_type = packet_type; 636 } 637 638 static uint16_t 639 cb_parse_ptype(uint8_t port __rte_unused, uint16_t queue __rte_unused, 640 struct rte_mbuf *pkts[], uint16_t nb_pkts, 641 uint16_t max_pkts __rte_unused, 642 void *user_param __rte_unused) 643 { 644 unsigned int i; 645 646 for (i = 0; i < nb_pkts; ++i) 647 parse_ptype_one(pkts[i]); 648 649 return nb_pkts; 650 } 651 652 static int 653 add_cb_parse_ptype(uint8_t portid, uint16_t queueid) 654 { 655 printf("Port %d: softly parse packet type info\n", portid); 656 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL)) 657 return 0; 658 659 printf("Failed to add rx callback: port=%d\n", portid); 660 return -1; 661 } 662 663 static inline void 664 l3fwd_simple_forward(struct rte_mbuf *m, uint8_t portid, 665 struct lcore_conf *qconf) 666 { 667 struct ether_hdr *eth_hdr; 668 struct ipv4_hdr *ipv4_hdr; 669 void *d_addr_bytes; 670 uint8_t dst_port; 671 672 eth_hdr = rte_pktmbuf_mtod(m, struct ether_hdr *); 673 674 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) { 675 /* Handle IPv4 headers.*/ 676 ipv4_hdr = 677 rte_pktmbuf_mtod_offset(m, struct ipv4_hdr *, 678 sizeof(struct ether_hdr)); 679 680 #ifdef DO_RFC_1812_CHECKS 681 /* Check to make sure the packet is valid (RFC1812) */ 682 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) { 683 rte_pktmbuf_free(m); 684 return; 685 } 686 #endif 687 688 dst_port = get_ipv4_dst_port(ipv4_hdr, portid, 689 qconf->ipv4_lookup_struct); 690 if (dst_port >= RTE_MAX_ETHPORTS || 691 (enabled_port_mask & 1 << dst_port) == 0) 692 dst_port = portid; 693 694 /* 02:00:00:00:00:xx */ 695 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 696 *((uint64_t *)d_addr_bytes) = 697 0x000000000002 + ((uint64_t)dst_port << 40); 698 699 #ifdef DO_RFC_1812_CHECKS 700 /* Update time to live and header checksum */ 701 --(ipv4_hdr->time_to_live); 702 ++(ipv4_hdr->hdr_checksum); 703 #endif 704 705 /* src addr */ 706 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr); 707 708 send_single_packet(m, dst_port); 709 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) { 710 /* Handle IPv6 headers.*/ 711 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 712 struct ipv6_hdr *ipv6_hdr; 713 714 ipv6_hdr = 715 rte_pktmbuf_mtod_offset(m, struct ipv6_hdr *, 716 sizeof(struct ether_hdr)); 717 718 dst_port = get_ipv6_dst_port(ipv6_hdr, portid, 719 qconf->ipv6_lookup_struct); 720 721 if (dst_port >= RTE_MAX_ETHPORTS || 722 (enabled_port_mask & 1 << dst_port) == 0) 723 dst_port = portid; 724 725 /* 02:00:00:00:00:xx */ 726 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 727 *((uint64_t *)d_addr_bytes) = 728 0x000000000002 + ((uint64_t)dst_port << 40); 729 730 /* src addr */ 731 ether_addr_copy(&ports_eth_addr[dst_port], ð_hdr->s_addr); 732 733 send_single_packet(m, dst_port); 734 #else 735 /* We don't currently handle IPv6 packets in LPM mode. */ 736 rte_pktmbuf_free(m); 737 #endif 738 } else 739 rte_pktmbuf_free(m); 740 741 } 742 743 #define MINIMUM_SLEEP_TIME 1 744 #define SUSPEND_THRESHOLD 300 745 746 static inline uint32_t 747 power_idle_heuristic(uint32_t zero_rx_packet_count) 748 { 749 /* If zero count is less than 100, sleep 1us */ 750 if (zero_rx_packet_count < SUSPEND_THRESHOLD) 751 return MINIMUM_SLEEP_TIME; 752 /* If zero count is less than 1000, sleep 100 us which is the 753 minimum latency switching from C3/C6 to C0 754 */ 755 else 756 return SUSPEND_THRESHOLD; 757 758 return 0; 759 } 760 761 static inline enum freq_scale_hint_t 762 power_freq_scaleup_heuristic(unsigned lcore_id, 763 uint8_t port_id, 764 uint16_t queue_id) 765 { 766 /** 767 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries 768 * per iteration 769 */ 770 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST 771 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2) 772 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3) 773 #define FREQ_UP_TREND1_ACC 1 774 #define FREQ_UP_TREND2_ACC 100 775 #define FREQ_UP_THRESHOLD 10000 776 777 if (likely(rte_eth_rx_descriptor_done(port_id, queue_id, 778 FREQ_GEAR3_RX_PACKET_THRESHOLD) > 0)) { 779 stats[lcore_id].trend = 0; 780 return FREQ_HIGHEST; 781 } else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id, 782 FREQ_GEAR2_RX_PACKET_THRESHOLD) > 0)) 783 stats[lcore_id].trend += FREQ_UP_TREND2_ACC; 784 else if (likely(rte_eth_rx_descriptor_done(port_id, queue_id, 785 FREQ_GEAR1_RX_PACKET_THRESHOLD) > 0)) 786 stats[lcore_id].trend += FREQ_UP_TREND1_ACC; 787 788 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) { 789 stats[lcore_id].trend = 0; 790 return FREQ_HIGHER; 791 } 792 793 return FREQ_CURRENT; 794 } 795 796 /** 797 * force polling thread sleep until one-shot rx interrupt triggers 798 * @param port_id 799 * Port id. 800 * @param queue_id 801 * Rx queue id. 802 * @return 803 * 0 on success 804 */ 805 static int 806 sleep_until_rx_interrupt(int num) 807 { 808 struct rte_epoll_event event[num]; 809 int n, i; 810 uint8_t port_id, queue_id; 811 void *data; 812 813 RTE_LOG(INFO, L3FWD_POWER, 814 "lcore %u sleeps until interrupt triggers\n", 815 rte_lcore_id()); 816 817 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1); 818 for (i = 0; i < n; i++) { 819 data = event[i].epdata.data; 820 port_id = ((uintptr_t)data) >> CHAR_BIT; 821 queue_id = ((uintptr_t)data) & 822 RTE_LEN2MASK(CHAR_BIT, uint8_t); 823 rte_eth_dev_rx_intr_disable(port_id, queue_id); 824 RTE_LOG(INFO, L3FWD_POWER, 825 "lcore %u is waked up from rx interrupt on" 826 " port %d queue %d\n", 827 rte_lcore_id(), port_id, queue_id); 828 } 829 830 return 0; 831 } 832 833 static void turn_on_intr(struct lcore_conf *qconf) 834 { 835 int i; 836 struct lcore_rx_queue *rx_queue; 837 uint8_t port_id, queue_id; 838 839 for (i = 0; i < qconf->n_rx_queue; ++i) { 840 rx_queue = &(qconf->rx_queue_list[i]); 841 port_id = rx_queue->port_id; 842 queue_id = rx_queue->queue_id; 843 844 rte_spinlock_lock(&(locks[port_id])); 845 rte_eth_dev_rx_intr_enable(port_id, queue_id); 846 rte_spinlock_unlock(&(locks[port_id])); 847 } 848 } 849 850 static int event_register(struct lcore_conf *qconf) 851 { 852 struct lcore_rx_queue *rx_queue; 853 uint8_t portid, queueid; 854 uint32_t data; 855 int ret; 856 int i; 857 858 for (i = 0; i < qconf->n_rx_queue; ++i) { 859 rx_queue = &(qconf->rx_queue_list[i]); 860 portid = rx_queue->port_id; 861 queueid = rx_queue->queue_id; 862 data = portid << CHAR_BIT | queueid; 863 864 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid, 865 RTE_EPOLL_PER_THREAD, 866 RTE_INTR_EVENT_ADD, 867 (void *)((uintptr_t)data)); 868 if (ret) 869 return ret; 870 } 871 872 return 0; 873 } 874 875 /* main processing loop */ 876 static int 877 main_loop(__attribute__((unused)) void *dummy) 878 { 879 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 880 unsigned lcore_id; 881 uint64_t prev_tsc, diff_tsc, cur_tsc; 882 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power; 883 int i, j, nb_rx; 884 uint8_t portid, queueid; 885 struct lcore_conf *qconf; 886 struct lcore_rx_queue *rx_queue; 887 enum freq_scale_hint_t lcore_scaleup_hint; 888 uint32_t lcore_rx_idle_count = 0; 889 uint32_t lcore_idle_hint = 0; 890 int intr_en = 0; 891 892 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 893 894 prev_tsc = 0; 895 896 lcore_id = rte_lcore_id(); 897 qconf = &lcore_conf[lcore_id]; 898 899 if (qconf->n_rx_queue == 0) { 900 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id); 901 return 0; 902 } 903 904 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id); 905 906 for (i = 0; i < qconf->n_rx_queue; i++) { 907 portid = qconf->rx_queue_list[i].port_id; 908 queueid = qconf->rx_queue_list[i].queue_id; 909 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%hhu " 910 "rxqueueid=%hhu\n", lcore_id, portid, queueid); 911 } 912 913 /* add into event wait list */ 914 if (event_register(qconf) == 0) 915 intr_en = 1; 916 else 917 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n"); 918 919 while (1) { 920 stats[lcore_id].nb_iteration_looped++; 921 922 cur_tsc = rte_rdtsc(); 923 cur_tsc_power = cur_tsc; 924 925 /* 926 * TX burst queue drain 927 */ 928 diff_tsc = cur_tsc - prev_tsc; 929 if (unlikely(diff_tsc > drain_tsc)) { 930 for (i = 0; i < qconf->n_tx_port; ++i) { 931 portid = qconf->tx_port_id[i]; 932 rte_eth_tx_buffer_flush(portid, 933 qconf->tx_queue_id[portid], 934 qconf->tx_buffer[portid]); 935 } 936 prev_tsc = cur_tsc; 937 } 938 939 diff_tsc_power = cur_tsc_power - prev_tsc_power; 940 if (diff_tsc_power > TIMER_RESOLUTION_CYCLES) { 941 rte_timer_manage(); 942 prev_tsc_power = cur_tsc_power; 943 } 944 945 start_rx: 946 /* 947 * Read packet from RX queues 948 */ 949 lcore_scaleup_hint = FREQ_CURRENT; 950 lcore_rx_idle_count = 0; 951 for (i = 0; i < qconf->n_rx_queue; ++i) { 952 rx_queue = &(qconf->rx_queue_list[i]); 953 rx_queue->idle_hint = 0; 954 portid = rx_queue->port_id; 955 queueid = rx_queue->queue_id; 956 957 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, 958 MAX_PKT_BURST); 959 960 stats[lcore_id].nb_rx_processed += nb_rx; 961 if (unlikely(nb_rx == 0)) { 962 /** 963 * no packet received from rx queue, try to 964 * sleep for a while forcing CPU enter deeper 965 * C states. 966 */ 967 rx_queue->zero_rx_packet_count++; 968 969 if (rx_queue->zero_rx_packet_count <= 970 MIN_ZERO_POLL_COUNT) 971 continue; 972 973 rx_queue->idle_hint = power_idle_heuristic(\ 974 rx_queue->zero_rx_packet_count); 975 lcore_rx_idle_count++; 976 } else { 977 rx_queue->zero_rx_packet_count = 0; 978 979 /** 980 * do not scale up frequency immediately as 981 * user to kernel space communication is costly 982 * which might impact packet I/O for received 983 * packets. 984 */ 985 rx_queue->freq_up_hint = 986 power_freq_scaleup_heuristic(lcore_id, 987 portid, queueid); 988 } 989 990 /* Prefetch first packets */ 991 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 992 rte_prefetch0(rte_pktmbuf_mtod( 993 pkts_burst[j], void *)); 994 } 995 996 /* Prefetch and forward already prefetched packets */ 997 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 998 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 999 j + PREFETCH_OFFSET], void *)); 1000 l3fwd_simple_forward(pkts_burst[j], portid, 1001 qconf); 1002 } 1003 1004 /* Forward remaining prefetched packets */ 1005 for (; j < nb_rx; j++) { 1006 l3fwd_simple_forward(pkts_burst[j], portid, 1007 qconf); 1008 } 1009 } 1010 1011 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) { 1012 for (i = 1, lcore_scaleup_hint = 1013 qconf->rx_queue_list[0].freq_up_hint; 1014 i < qconf->n_rx_queue; ++i) { 1015 rx_queue = &(qconf->rx_queue_list[i]); 1016 if (rx_queue->freq_up_hint > 1017 lcore_scaleup_hint) 1018 lcore_scaleup_hint = 1019 rx_queue->freq_up_hint; 1020 } 1021 1022 if (lcore_scaleup_hint == FREQ_HIGHEST) { 1023 if (rte_power_freq_max) 1024 rte_power_freq_max(lcore_id); 1025 } else if (lcore_scaleup_hint == FREQ_HIGHER) { 1026 if (rte_power_freq_up) 1027 rte_power_freq_up(lcore_id); 1028 } 1029 } else { 1030 /** 1031 * All Rx queues empty in recent consecutive polls, 1032 * sleep in a conservative manner, meaning sleep as 1033 * less as possible. 1034 */ 1035 for (i = 1, lcore_idle_hint = 1036 qconf->rx_queue_list[0].idle_hint; 1037 i < qconf->n_rx_queue; ++i) { 1038 rx_queue = &(qconf->rx_queue_list[i]); 1039 if (rx_queue->idle_hint < lcore_idle_hint) 1040 lcore_idle_hint = rx_queue->idle_hint; 1041 } 1042 1043 if (lcore_idle_hint < SUSPEND_THRESHOLD) 1044 /** 1045 * execute "pause" instruction to avoid context 1046 * switch which generally take hundred of 1047 * microseconds for short sleep. 1048 */ 1049 rte_delay_us(lcore_idle_hint); 1050 else { 1051 /* suspend until rx interrupt trigges */ 1052 if (intr_en) { 1053 turn_on_intr(qconf); 1054 sleep_until_rx_interrupt( 1055 qconf->n_rx_queue); 1056 } 1057 /* start receiving packets immediately */ 1058 goto start_rx; 1059 } 1060 stats[lcore_id].sleep_time += lcore_idle_hint; 1061 } 1062 } 1063 } 1064 1065 static int 1066 check_lcore_params(void) 1067 { 1068 uint8_t queue, lcore; 1069 uint16_t i; 1070 int socketid; 1071 1072 for (i = 0; i < nb_lcore_params; ++i) { 1073 queue = lcore_params[i].queue_id; 1074 if (queue >= MAX_RX_QUEUE_PER_PORT) { 1075 printf("invalid queue number: %hhu\n", queue); 1076 return -1; 1077 } 1078 lcore = lcore_params[i].lcore_id; 1079 if (!rte_lcore_is_enabled(lcore)) { 1080 printf("error: lcore %hhu is not enabled in lcore " 1081 "mask\n", lcore); 1082 return -1; 1083 } 1084 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) && 1085 (numa_on == 0)) { 1086 printf("warning: lcore %hhu is on socket %d with numa " 1087 "off\n", lcore, socketid); 1088 } 1089 } 1090 return 0; 1091 } 1092 1093 static int 1094 check_port_config(const unsigned nb_ports) 1095 { 1096 unsigned portid; 1097 uint16_t i; 1098 1099 for (i = 0; i < nb_lcore_params; ++i) { 1100 portid = lcore_params[i].port_id; 1101 if ((enabled_port_mask & (1 << portid)) == 0) { 1102 printf("port %u is not enabled in port mask\n", 1103 portid); 1104 return -1; 1105 } 1106 if (portid >= nb_ports) { 1107 printf("port %u is not present on the board\n", 1108 portid); 1109 return -1; 1110 } 1111 } 1112 return 0; 1113 } 1114 1115 static uint8_t 1116 get_port_n_rx_queues(const uint8_t port) 1117 { 1118 int queue = -1; 1119 uint16_t i; 1120 1121 for (i = 0; i < nb_lcore_params; ++i) { 1122 if (lcore_params[i].port_id == port && 1123 lcore_params[i].queue_id > queue) 1124 queue = lcore_params[i].queue_id; 1125 } 1126 return (uint8_t)(++queue); 1127 } 1128 1129 static int 1130 init_lcore_rx_queues(void) 1131 { 1132 uint16_t i, nb_rx_queue; 1133 uint8_t lcore; 1134 1135 for (i = 0; i < nb_lcore_params; ++i) { 1136 lcore = lcore_params[i].lcore_id; 1137 nb_rx_queue = lcore_conf[lcore].n_rx_queue; 1138 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) { 1139 printf("error: too many queues (%u) for lcore: %u\n", 1140 (unsigned)nb_rx_queue + 1, (unsigned)lcore); 1141 return -1; 1142 } else { 1143 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id = 1144 lcore_params[i].port_id; 1145 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id = 1146 lcore_params[i].queue_id; 1147 lcore_conf[lcore].n_rx_queue++; 1148 } 1149 } 1150 return 0; 1151 } 1152 1153 /* display usage */ 1154 static void 1155 print_usage(const char *prgname) 1156 { 1157 printf ("%s [EAL options] -- -p PORTMASK -P" 1158 " [--config (port,queue,lcore)[,(port,queue,lcore]]" 1159 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n" 1160 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 1161 " -P : enable promiscuous mode\n" 1162 " --config (port,queue,lcore): rx queues configuration\n" 1163 " --no-numa: optional, disable numa awareness\n" 1164 " --enable-jumbo: enable jumbo frame" 1165 " which max packet len is PKTLEN in decimal (64-9600)\n" 1166 " --parse-ptype: parse packet type by software\n", 1167 prgname); 1168 } 1169 1170 static int parse_max_pkt_len(const char *pktlen) 1171 { 1172 char *end = NULL; 1173 unsigned long len; 1174 1175 /* parse decimal string */ 1176 len = strtoul(pktlen, &end, 10); 1177 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0')) 1178 return -1; 1179 1180 if (len == 0) 1181 return -1; 1182 1183 return len; 1184 } 1185 1186 static int 1187 parse_portmask(const char *portmask) 1188 { 1189 char *end = NULL; 1190 unsigned long pm; 1191 1192 /* parse hexadecimal string */ 1193 pm = strtoul(portmask, &end, 16); 1194 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 1195 return -1; 1196 1197 if (pm == 0) 1198 return -1; 1199 1200 return pm; 1201 } 1202 1203 static int 1204 parse_config(const char *q_arg) 1205 { 1206 char s[256]; 1207 const char *p, *p0 = q_arg; 1208 char *end; 1209 enum fieldnames { 1210 FLD_PORT = 0, 1211 FLD_QUEUE, 1212 FLD_LCORE, 1213 _NUM_FLD 1214 }; 1215 unsigned long int_fld[_NUM_FLD]; 1216 char *str_fld[_NUM_FLD]; 1217 int i; 1218 unsigned size; 1219 1220 nb_lcore_params = 0; 1221 1222 while ((p = strchr(p0,'(')) != NULL) { 1223 ++p; 1224 if((p0 = strchr(p,')')) == NULL) 1225 return -1; 1226 1227 size = p0 - p; 1228 if(size >= sizeof(s)) 1229 return -1; 1230 1231 snprintf(s, sizeof(s), "%.*s", size, p); 1232 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != 1233 _NUM_FLD) 1234 return -1; 1235 for (i = 0; i < _NUM_FLD; i++){ 1236 errno = 0; 1237 int_fld[i] = strtoul(str_fld[i], &end, 0); 1238 if (errno != 0 || end == str_fld[i] || int_fld[i] > 1239 255) 1240 return -1; 1241 } 1242 if (nb_lcore_params >= MAX_LCORE_PARAMS) { 1243 printf("exceeded max number of lcore params: %hu\n", 1244 nb_lcore_params); 1245 return -1; 1246 } 1247 lcore_params_array[nb_lcore_params].port_id = 1248 (uint8_t)int_fld[FLD_PORT]; 1249 lcore_params_array[nb_lcore_params].queue_id = 1250 (uint8_t)int_fld[FLD_QUEUE]; 1251 lcore_params_array[nb_lcore_params].lcore_id = 1252 (uint8_t)int_fld[FLD_LCORE]; 1253 ++nb_lcore_params; 1254 } 1255 lcore_params = lcore_params_array; 1256 1257 return 0; 1258 } 1259 1260 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype" 1261 1262 /* Parse the argument given in the command line of the application */ 1263 static int 1264 parse_args(int argc, char **argv) 1265 { 1266 int opt, ret; 1267 char **argvopt; 1268 int option_index; 1269 char *prgname = argv[0]; 1270 static struct option lgopts[] = { 1271 {"config", 1, 0, 0}, 1272 {"no-numa", 0, 0, 0}, 1273 {"enable-jumbo", 0, 0, 0}, 1274 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0}, 1275 {NULL, 0, 0, 0} 1276 }; 1277 1278 argvopt = argv; 1279 1280 while ((opt = getopt_long(argc, argvopt, "p:P", 1281 lgopts, &option_index)) != EOF) { 1282 1283 switch (opt) { 1284 /* portmask */ 1285 case 'p': 1286 enabled_port_mask = parse_portmask(optarg); 1287 if (enabled_port_mask == 0) { 1288 printf("invalid portmask\n"); 1289 print_usage(prgname); 1290 return -1; 1291 } 1292 break; 1293 case 'P': 1294 printf("Promiscuous mode selected\n"); 1295 promiscuous_on = 1; 1296 break; 1297 1298 /* long options */ 1299 case 0: 1300 if (!strncmp(lgopts[option_index].name, "config", 6)) { 1301 ret = parse_config(optarg); 1302 if (ret) { 1303 printf("invalid config\n"); 1304 print_usage(prgname); 1305 return -1; 1306 } 1307 } 1308 1309 if (!strncmp(lgopts[option_index].name, 1310 "no-numa", 7)) { 1311 printf("numa is disabled \n"); 1312 numa_on = 0; 1313 } 1314 1315 if (!strncmp(lgopts[option_index].name, 1316 "enable-jumbo", 12)) { 1317 struct option lenopts = 1318 {"max-pkt-len", required_argument, \ 1319 0, 0}; 1320 1321 printf("jumbo frame is enabled \n"); 1322 port_conf.rxmode.jumbo_frame = 1; 1323 1324 /** 1325 * if no max-pkt-len set, use the default value 1326 * ETHER_MAX_LEN 1327 */ 1328 if (0 == getopt_long(argc, argvopt, "", 1329 &lenopts, &option_index)) { 1330 ret = parse_max_pkt_len(optarg); 1331 if ((ret < 64) || 1332 (ret > MAX_JUMBO_PKT_LEN)){ 1333 printf("invalid packet " 1334 "length\n"); 1335 print_usage(prgname); 1336 return -1; 1337 } 1338 port_conf.rxmode.max_rx_pkt_len = ret; 1339 } 1340 printf("set jumbo frame " 1341 "max packet length to %u\n", 1342 (unsigned int)port_conf.rxmode.max_rx_pkt_len); 1343 } 1344 1345 if (!strncmp(lgopts[option_index].name, 1346 CMD_LINE_OPT_PARSE_PTYPE, 1347 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) { 1348 printf("soft parse-ptype is enabled\n"); 1349 parse_ptype = 1; 1350 } 1351 1352 break; 1353 1354 default: 1355 print_usage(prgname); 1356 return -1; 1357 } 1358 } 1359 1360 if (optind >= 0) 1361 argv[optind-1] = prgname; 1362 1363 ret = optind-1; 1364 optind = 1; /* reset getopt lib */ 1365 return ret; 1366 } 1367 1368 static void 1369 print_ethaddr(const char *name, const struct ether_addr *eth_addr) 1370 { 1371 char buf[ETHER_ADDR_FMT_SIZE]; 1372 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 1373 printf("%s%s", name, buf); 1374 } 1375 1376 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1377 static void 1378 setup_hash(int socketid) 1379 { 1380 struct rte_hash_parameters ipv4_l3fwd_hash_params = { 1381 .name = NULL, 1382 .entries = L3FWD_HASH_ENTRIES, 1383 .key_len = sizeof(struct ipv4_5tuple), 1384 .hash_func = DEFAULT_HASH_FUNC, 1385 .hash_func_init_val = 0, 1386 }; 1387 1388 struct rte_hash_parameters ipv6_l3fwd_hash_params = { 1389 .name = NULL, 1390 .entries = L3FWD_HASH_ENTRIES, 1391 .key_len = sizeof(struct ipv6_5tuple), 1392 .hash_func = DEFAULT_HASH_FUNC, 1393 .hash_func_init_val = 0, 1394 }; 1395 1396 unsigned i; 1397 int ret; 1398 char s[64]; 1399 1400 /* create ipv4 hash */ 1401 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid); 1402 ipv4_l3fwd_hash_params.name = s; 1403 ipv4_l3fwd_hash_params.socket_id = socketid; 1404 ipv4_l3fwd_lookup_struct[socketid] = 1405 rte_hash_create(&ipv4_l3fwd_hash_params); 1406 if (ipv4_l3fwd_lookup_struct[socketid] == NULL) 1407 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on " 1408 "socket %d\n", socketid); 1409 1410 /* create ipv6 hash */ 1411 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid); 1412 ipv6_l3fwd_hash_params.name = s; 1413 ipv6_l3fwd_hash_params.socket_id = socketid; 1414 ipv6_l3fwd_lookup_struct[socketid] = 1415 rte_hash_create(&ipv6_l3fwd_hash_params); 1416 if (ipv6_l3fwd_lookup_struct[socketid] == NULL) 1417 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on " 1418 "socket %d\n", socketid); 1419 1420 1421 /* populate the ipv4 hash */ 1422 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) { 1423 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid], 1424 (void *) &ipv4_l3fwd_route_array[i].key); 1425 if (ret < 0) { 1426 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the" 1427 "l3fwd hash on socket %d\n", i, socketid); 1428 } 1429 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out; 1430 printf("Hash: Adding key\n"); 1431 print_ipv4_key(ipv4_l3fwd_route_array[i].key); 1432 } 1433 1434 /* populate the ipv6 hash */ 1435 for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) { 1436 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid], 1437 (void *) &ipv6_l3fwd_route_array[i].key); 1438 if (ret < 0) { 1439 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the" 1440 "l3fwd hash on socket %d\n", i, socketid); 1441 } 1442 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out; 1443 printf("Hash: Adding key\n"); 1444 print_ipv6_key(ipv6_l3fwd_route_array[i].key); 1445 } 1446 } 1447 #endif 1448 1449 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 1450 static void 1451 setup_lpm(int socketid) 1452 { 1453 unsigned i; 1454 int ret; 1455 char s[64]; 1456 1457 /* create the LPM table */ 1458 struct rte_lpm_config lpm_ipv4_config; 1459 1460 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES; 1461 lpm_ipv4_config.number_tbl8s = 256; 1462 lpm_ipv4_config.flags = 0; 1463 1464 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid); 1465 ipv4_l3fwd_lookup_struct[socketid] = 1466 rte_lpm_create(s, socketid, &lpm_ipv4_config); 1467 if (ipv4_l3fwd_lookup_struct[socketid] == NULL) 1468 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table" 1469 " on socket %d\n", socketid); 1470 1471 /* populate the LPM table */ 1472 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) { 1473 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid], 1474 ipv4_l3fwd_route_array[i].ip, 1475 ipv4_l3fwd_route_array[i].depth, 1476 ipv4_l3fwd_route_array[i].if_out); 1477 1478 if (ret < 0) { 1479 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the " 1480 "l3fwd LPM table on socket %d\n", 1481 i, socketid); 1482 } 1483 1484 printf("LPM: Adding route 0x%08x / %d (%d)\n", 1485 (unsigned)ipv4_l3fwd_route_array[i].ip, 1486 ipv4_l3fwd_route_array[i].depth, 1487 ipv4_l3fwd_route_array[i].if_out); 1488 } 1489 } 1490 #endif 1491 1492 static int 1493 init_mem(unsigned nb_mbuf) 1494 { 1495 struct lcore_conf *qconf; 1496 int socketid; 1497 unsigned lcore_id; 1498 char s[64]; 1499 1500 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1501 if (rte_lcore_is_enabled(lcore_id) == 0) 1502 continue; 1503 1504 if (numa_on) 1505 socketid = rte_lcore_to_socket_id(lcore_id); 1506 else 1507 socketid = 0; 1508 1509 if (socketid >= NB_SOCKETS) { 1510 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is " 1511 "out of range %d\n", socketid, 1512 lcore_id, NB_SOCKETS); 1513 } 1514 if (pktmbuf_pool[socketid] == NULL) { 1515 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid); 1516 pktmbuf_pool[socketid] = 1517 rte_pktmbuf_pool_create(s, nb_mbuf, 1518 MEMPOOL_CACHE_SIZE, 0, 1519 RTE_MBUF_DEFAULT_BUF_SIZE, 1520 socketid); 1521 if (pktmbuf_pool[socketid] == NULL) 1522 rte_exit(EXIT_FAILURE, 1523 "Cannot init mbuf pool on socket %d\n", 1524 socketid); 1525 else 1526 printf("Allocated mbuf pool on socket %d\n", 1527 socketid); 1528 1529 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 1530 setup_lpm(socketid); 1531 #else 1532 setup_hash(socketid); 1533 #endif 1534 } 1535 qconf = &lcore_conf[lcore_id]; 1536 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid]; 1537 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1538 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid]; 1539 #endif 1540 } 1541 return 0; 1542 } 1543 1544 /* Check the link status of all ports in up to 9s, and print them finally */ 1545 static void 1546 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask) 1547 { 1548 #define CHECK_INTERVAL 100 /* 100ms */ 1549 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 1550 uint8_t portid, count, all_ports_up, print_flag = 0; 1551 struct rte_eth_link link; 1552 1553 printf("\nChecking link status"); 1554 fflush(stdout); 1555 for (count = 0; count <= MAX_CHECK_TIME; count++) { 1556 all_ports_up = 1; 1557 for (portid = 0; portid < port_num; portid++) { 1558 if ((port_mask & (1 << portid)) == 0) 1559 continue; 1560 memset(&link, 0, sizeof(link)); 1561 rte_eth_link_get_nowait(portid, &link); 1562 /* print link status if flag set */ 1563 if (print_flag == 1) { 1564 if (link.link_status) 1565 printf("Port %d Link Up - speed %u " 1566 "Mbps - %s\n", (uint8_t)portid, 1567 (unsigned)link.link_speed, 1568 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 1569 ("full-duplex") : ("half-duplex\n")); 1570 else 1571 printf("Port %d Link Down\n", 1572 (uint8_t)portid); 1573 continue; 1574 } 1575 /* clear all_ports_up flag if any link down */ 1576 if (link.link_status == ETH_LINK_DOWN) { 1577 all_ports_up = 0; 1578 break; 1579 } 1580 } 1581 /* after finally printing all link status, get out */ 1582 if (print_flag == 1) 1583 break; 1584 1585 if (all_ports_up == 0) { 1586 printf("."); 1587 fflush(stdout); 1588 rte_delay_ms(CHECK_INTERVAL); 1589 } 1590 1591 /* set the print_flag if all ports up or timeout */ 1592 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 1593 print_flag = 1; 1594 printf("done\n"); 1595 } 1596 } 1597 } 1598 1599 static int check_ptype(uint8_t portid) 1600 { 1601 int i, ret; 1602 int ptype_l3_ipv4 = 0; 1603 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1604 int ptype_l3_ipv6 = 0; 1605 #endif 1606 uint32_t ptype_mask = RTE_PTYPE_L3_MASK; 1607 1608 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0); 1609 if (ret <= 0) 1610 return 0; 1611 1612 uint32_t ptypes[ret]; 1613 1614 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret); 1615 for (i = 0; i < ret; ++i) { 1616 if (ptypes[i] & RTE_PTYPE_L3_IPV4) 1617 ptype_l3_ipv4 = 1; 1618 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1619 if (ptypes[i] & RTE_PTYPE_L3_IPV6) 1620 ptype_l3_ipv6 = 1; 1621 #endif 1622 } 1623 1624 if (ptype_l3_ipv4 == 0) 1625 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid); 1626 1627 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1628 if (ptype_l3_ipv6 == 0) 1629 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid); 1630 #endif 1631 1632 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 1633 if (ptype_l3_ipv4) 1634 #else /* APP_LOOKUP_EXACT_MATCH */ 1635 if (ptype_l3_ipv4 && ptype_l3_ipv6) 1636 #endif 1637 return 1; 1638 1639 return 0; 1640 1641 } 1642 1643 int 1644 main(int argc, char **argv) 1645 { 1646 struct lcore_conf *qconf; 1647 struct rte_eth_dev_info dev_info; 1648 struct rte_eth_txconf *txconf; 1649 int ret; 1650 unsigned nb_ports; 1651 uint16_t queueid; 1652 unsigned lcore_id; 1653 uint64_t hz; 1654 uint32_t n_tx_queue, nb_lcores; 1655 uint32_t dev_rxq_num, dev_txq_num; 1656 uint8_t portid, nb_rx_queue, queue, socketid; 1657 uint16_t org_rxq_intr = port_conf.intr_conf.rxq; 1658 1659 /* catch SIGINT and restore cpufreq governor to ondemand */ 1660 signal(SIGINT, signal_exit_now); 1661 1662 /* init EAL */ 1663 ret = rte_eal_init(argc, argv); 1664 if (ret < 0) 1665 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 1666 argc -= ret; 1667 argv += ret; 1668 1669 /* init RTE timer library to be used late */ 1670 rte_timer_subsystem_init(); 1671 1672 /* parse application arguments (after the EAL ones) */ 1673 ret = parse_args(argc, argv); 1674 if (ret < 0) 1675 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n"); 1676 1677 if (check_lcore_params() < 0) 1678 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n"); 1679 1680 ret = init_lcore_rx_queues(); 1681 if (ret < 0) 1682 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n"); 1683 1684 nb_ports = rte_eth_dev_count(); 1685 1686 if (check_port_config(nb_ports) < 0) 1687 rte_exit(EXIT_FAILURE, "check_port_config failed\n"); 1688 1689 nb_lcores = rte_lcore_count(); 1690 1691 /* initialize all ports */ 1692 for (portid = 0; portid < nb_ports; portid++) { 1693 /* skip ports that are not enabled */ 1694 if ((enabled_port_mask & (1 << portid)) == 0) { 1695 printf("\nSkipping disabled port %d\n", portid); 1696 continue; 1697 } 1698 1699 /* init port */ 1700 printf("Initializing port %d ... ", portid ); 1701 fflush(stdout); 1702 1703 rte_eth_dev_info_get(portid, &dev_info); 1704 dev_rxq_num = dev_info.max_rx_queues; 1705 dev_txq_num = dev_info.max_tx_queues; 1706 1707 nb_rx_queue = get_port_n_rx_queues(portid); 1708 if (nb_rx_queue > dev_rxq_num) 1709 rte_exit(EXIT_FAILURE, 1710 "Cannot configure not existed rxq: " 1711 "port=%d\n", portid); 1712 1713 n_tx_queue = nb_lcores; 1714 if (n_tx_queue > dev_txq_num) 1715 n_tx_queue = dev_txq_num; 1716 printf("Creating queues: nb_rxq=%d nb_txq=%u... ", 1717 nb_rx_queue, (unsigned)n_tx_queue ); 1718 /* If number of Rx queue is 0, no need to enable Rx interrupt */ 1719 if (nb_rx_queue == 0) 1720 port_conf.intr_conf.rxq = 0; 1721 ret = rte_eth_dev_configure(portid, nb_rx_queue, 1722 (uint16_t)n_tx_queue, &port_conf); 1723 /* Revert to original value */ 1724 port_conf.intr_conf.rxq = org_rxq_intr; 1725 if (ret < 0) 1726 rte_exit(EXIT_FAILURE, "Cannot configure device: " 1727 "err=%d, port=%d\n", ret, portid); 1728 1729 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 1730 print_ethaddr(" Address:", &ports_eth_addr[portid]); 1731 printf(", "); 1732 1733 /* init memory */ 1734 ret = init_mem(NB_MBUF); 1735 if (ret < 0) 1736 rte_exit(EXIT_FAILURE, "init_mem failed\n"); 1737 1738 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1739 if (rte_lcore_is_enabled(lcore_id) == 0) 1740 continue; 1741 1742 /* Initialize TX buffers */ 1743 qconf = &lcore_conf[lcore_id]; 1744 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 1745 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 1746 rte_eth_dev_socket_id(portid)); 1747 if (qconf->tx_buffer[portid] == NULL) 1748 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n", 1749 (unsigned) portid); 1750 1751 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST); 1752 } 1753 1754 /* init one TX queue per couple (lcore,port) */ 1755 queueid = 0; 1756 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1757 if (rte_lcore_is_enabled(lcore_id) == 0) 1758 continue; 1759 1760 if (queueid >= dev_txq_num) 1761 continue; 1762 1763 if (numa_on) 1764 socketid = \ 1765 (uint8_t)rte_lcore_to_socket_id(lcore_id); 1766 else 1767 socketid = 0; 1768 1769 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid); 1770 fflush(stdout); 1771 1772 rte_eth_dev_info_get(portid, &dev_info); 1773 txconf = &dev_info.default_txconf; 1774 if (port_conf.rxmode.jumbo_frame) 1775 txconf->txq_flags = 0; 1776 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, 1777 socketid, txconf); 1778 if (ret < 0) 1779 rte_exit(EXIT_FAILURE, 1780 "rte_eth_tx_queue_setup: err=%d, " 1781 "port=%d\n", ret, portid); 1782 1783 qconf = &lcore_conf[lcore_id]; 1784 qconf->tx_queue_id[portid] = queueid; 1785 queueid++; 1786 1787 qconf->tx_port_id[qconf->n_tx_port] = portid; 1788 qconf->n_tx_port++; 1789 } 1790 printf("\n"); 1791 } 1792 1793 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1794 if (rte_lcore_is_enabled(lcore_id) == 0) 1795 continue; 1796 1797 /* init power management library */ 1798 ret = rte_power_init(lcore_id); 1799 if (ret) 1800 RTE_LOG(ERR, POWER, 1801 "Library initialization failed on core %u\n", lcore_id); 1802 1803 /* init timer structures for each enabled lcore */ 1804 rte_timer_init(&power_timers[lcore_id]); 1805 hz = rte_get_timer_hz(); 1806 rte_timer_reset(&power_timers[lcore_id], 1807 hz/TIMER_NUMBER_PER_SECOND, SINGLE, lcore_id, 1808 power_timer_cb, NULL); 1809 1810 qconf = &lcore_conf[lcore_id]; 1811 printf("\nInitializing rx queues on lcore %u ... ", lcore_id ); 1812 fflush(stdout); 1813 /* init RX queues */ 1814 for(queue = 0; queue < qconf->n_rx_queue; ++queue) { 1815 portid = qconf->rx_queue_list[queue].port_id; 1816 queueid = qconf->rx_queue_list[queue].queue_id; 1817 1818 if (numa_on) 1819 socketid = \ 1820 (uint8_t)rte_lcore_to_socket_id(lcore_id); 1821 else 1822 socketid = 0; 1823 1824 printf("rxq=%d,%d,%d ", portid, queueid, socketid); 1825 fflush(stdout); 1826 1827 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd, 1828 socketid, NULL, 1829 pktmbuf_pool[socketid]); 1830 if (ret < 0) 1831 rte_exit(EXIT_FAILURE, 1832 "rte_eth_rx_queue_setup: err=%d, " 1833 "port=%d\n", ret, portid); 1834 1835 if (parse_ptype) { 1836 if (add_cb_parse_ptype(portid, queueid) < 0) 1837 rte_exit(EXIT_FAILURE, 1838 "Fail to add ptype cb\n"); 1839 } else if (!check_ptype(portid)) 1840 rte_exit(EXIT_FAILURE, 1841 "PMD can not provide needed ptypes\n"); 1842 } 1843 } 1844 1845 printf("\n"); 1846 1847 /* start ports */ 1848 for (portid = 0; portid < nb_ports; portid++) { 1849 if ((enabled_port_mask & (1 << portid)) == 0) { 1850 continue; 1851 } 1852 /* Start device */ 1853 ret = rte_eth_dev_start(portid); 1854 if (ret < 0) 1855 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, " 1856 "port=%d\n", ret, portid); 1857 /* 1858 * If enabled, put device in promiscuous mode. 1859 * This allows IO forwarding mode to forward packets 1860 * to itself through 2 cross-connected ports of the 1861 * target machine. 1862 */ 1863 if (promiscuous_on) 1864 rte_eth_promiscuous_enable(portid); 1865 /* initialize spinlock for each port */ 1866 rte_spinlock_init(&(locks[portid])); 1867 } 1868 1869 check_all_ports_link_status((uint8_t)nb_ports, enabled_port_mask); 1870 1871 /* launch per-lcore init on every lcore */ 1872 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 1873 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 1874 if (rte_eal_wait_lcore(lcore_id) < 0) 1875 return -1; 1876 } 1877 1878 return 0; 1879 } 1880