1 /* SPDX-License-Identifier: BSD-3-Clause 2 * Copyright(c) 2010-2018 Intel Corporation 3 */ 4 5 #include <stdio.h> 6 #include <stdlib.h> 7 #include <stdint.h> 8 #include <inttypes.h> 9 #include <sys/types.h> 10 #include <string.h> 11 #include <sys/queue.h> 12 #include <stdarg.h> 13 #include <errno.h> 14 #include <getopt.h> 15 #include <unistd.h> 16 #include <signal.h> 17 #include <math.h> 18 19 #include <rte_common.h> 20 #include <rte_byteorder.h> 21 #include <rte_log.h> 22 #include <rte_malloc.h> 23 #include <rte_memory.h> 24 #include <rte_memcpy.h> 25 #include <rte_eal.h> 26 #include <rte_launch.h> 27 #include <rte_atomic.h> 28 #include <rte_cycles.h> 29 #include <rte_prefetch.h> 30 #include <rte_lcore.h> 31 #include <rte_per_lcore.h> 32 #include <rte_branch_prediction.h> 33 #include <rte_interrupts.h> 34 #include <rte_random.h> 35 #include <rte_debug.h> 36 #include <rte_ether.h> 37 #include <rte_ethdev.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_timer.h> 45 #include <rte_power.h> 46 #include <rte_spinlock.h> 47 #include <rte_power_empty_poll.h> 48 #include <rte_metrics.h> 49 50 #include "perf_core.h" 51 #include "main.h" 52 53 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1 54 55 #define MAX_PKT_BURST 32 56 57 #define MIN_ZERO_POLL_COUNT 10 58 59 /* 100 ms interval */ 60 #define TIMER_NUMBER_PER_SECOND 10 61 /* (10ms) */ 62 #define INTERVALS_PER_SECOND 100 63 /* 100000 us */ 64 #define SCALING_PERIOD (1000000/TIMER_NUMBER_PER_SECOND) 65 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25 66 67 #define APP_LOOKUP_EXACT_MATCH 0 68 #define APP_LOOKUP_LPM 1 69 #define DO_RFC_1812_CHECKS 70 71 #ifndef APP_LOOKUP_METHOD 72 #define APP_LOOKUP_METHOD APP_LOOKUP_LPM 73 #endif 74 75 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 76 #include <rte_hash.h> 77 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 78 #include <rte_lpm.h> 79 #else 80 #error "APP_LOOKUP_METHOD set to incorrect value" 81 #endif 82 83 #ifndef IPv6_BYTES 84 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\ 85 "%02x%02x:%02x%02x:%02x%02x:%02x%02x" 86 #define IPv6_BYTES(addr) \ 87 addr[0], addr[1], addr[2], addr[3], \ 88 addr[4], addr[5], addr[6], addr[7], \ 89 addr[8], addr[9], addr[10], addr[11],\ 90 addr[12], addr[13],addr[14], addr[15] 91 #endif 92 93 #define MAX_JUMBO_PKT_LEN 9600 94 95 #define IPV6_ADDR_LEN 16 96 97 #define MEMPOOL_CACHE_SIZE 256 98 99 /* 100 * This expression is used to calculate the number of mbufs needed depending on 101 * user input, taking into account memory for rx and tx hardware rings, cache 102 * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that 103 * NB_MBUF never goes below a minimum value of 8192. 104 */ 105 106 #define NB_MBUF RTE_MAX ( \ 107 (nb_ports*nb_rx_queue*nb_rxd + \ 108 nb_ports*nb_lcores*MAX_PKT_BURST + \ 109 nb_ports*n_tx_queue*nb_txd + \ 110 nb_lcores*MEMPOOL_CACHE_SIZE), \ 111 (unsigned)8192) 112 113 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */ 114 115 #define NB_SOCKETS 8 116 117 /* Configure how many packets ahead to prefetch, when reading packets */ 118 #define PREFETCH_OFFSET 3 119 120 /* 121 * Configurable number of RX/TX ring descriptors 122 */ 123 #define RTE_TEST_RX_DESC_DEFAULT 1024 124 #define RTE_TEST_TX_DESC_DEFAULT 1024 125 126 /* 127 * These two thresholds were decided on by running the training algorithm on 128 * a 2.5GHz Xeon. These defaults can be overridden by supplying non-zero values 129 * for the med_threshold and high_threshold parameters on the command line. 130 */ 131 #define EMPTY_POLL_MED_THRESHOLD 350000UL 132 #define EMPTY_POLL_HGH_THRESHOLD 580000UL 133 134 135 136 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 137 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT; 138 139 /* ethernet addresses of ports */ 140 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS]; 141 142 /* ethernet addresses of ports */ 143 static rte_spinlock_t locks[RTE_MAX_ETHPORTS]; 144 145 /* mask of enabled ports */ 146 static uint32_t enabled_port_mask = 0; 147 /* Ports set in promiscuous mode off by default. */ 148 static int promiscuous_on = 0; 149 /* NUMA is enabled by default. */ 150 static int numa_on = 1; 151 static bool empty_poll_stop; 152 static bool empty_poll_train; 153 volatile bool quit_signal; 154 static struct ep_params *ep_params; 155 static struct ep_policy policy; 156 static long ep_med_edpi, ep_hgh_edpi; 157 /* timer to update telemetry every 500ms */ 158 static struct rte_timer telemetry_timer; 159 160 /* stats index returned by metrics lib */ 161 int telstats_index; 162 163 struct telstats_name { 164 char name[RTE_ETH_XSTATS_NAME_SIZE]; 165 }; 166 167 /* telemetry stats to be reported */ 168 const struct telstats_name telstats_strings[] = { 169 {"empty_poll"}, 170 {"full_poll"}, 171 {"busy_percent"} 172 }; 173 174 /* core busyness in percentage */ 175 enum busy_rate { 176 ZERO = 0, 177 PARTIAL = 50, 178 FULL = 100 179 }; 180 181 /* reference poll count to measure core busyness */ 182 #define DEFAULT_COUNT 10000 183 /* 184 * reference CYCLES to be used to 185 * measure core busyness based on poll count 186 */ 187 #define MIN_CYCLES 1500000ULL 188 #define MAX_CYCLES 22000000ULL 189 190 /* (500ms) */ 191 #define TELEMETRY_INTERVALS_PER_SEC 2 192 193 static int parse_ptype; /**< Parse packet type using rx callback, and */ 194 /**< disabled by default */ 195 196 enum appmode { 197 APP_MODE_LEGACY = 0, 198 APP_MODE_EMPTY_POLL, 199 APP_MODE_TELEMETRY 200 }; 201 202 enum appmode app_mode; 203 204 enum freq_scale_hint_t 205 { 206 FREQ_LOWER = -1, 207 FREQ_CURRENT = 0, 208 FREQ_HIGHER = 1, 209 FREQ_HIGHEST = 2 210 }; 211 212 struct lcore_rx_queue { 213 uint16_t port_id; 214 uint8_t queue_id; 215 enum freq_scale_hint_t freq_up_hint; 216 uint32_t zero_rx_packet_count; 217 uint32_t idle_hint; 218 } __rte_cache_aligned; 219 220 #define MAX_RX_QUEUE_PER_LCORE 16 221 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS 222 #define MAX_RX_QUEUE_PER_PORT 128 223 224 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16 225 226 227 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS]; 228 static struct lcore_params lcore_params_array_default[] = { 229 {0, 0, 2}, 230 {0, 1, 2}, 231 {0, 2, 2}, 232 {1, 0, 2}, 233 {1, 1, 2}, 234 {1, 2, 2}, 235 {2, 0, 2}, 236 {3, 0, 3}, 237 {3, 1, 3}, 238 }; 239 240 struct lcore_params *lcore_params = lcore_params_array_default; 241 uint16_t nb_lcore_params = sizeof(lcore_params_array_default) / 242 sizeof(lcore_params_array_default[0]); 243 244 static struct rte_eth_conf port_conf = { 245 .rxmode = { 246 .mq_mode = ETH_MQ_RX_RSS, 247 .max_rx_pkt_len = RTE_ETHER_MAX_LEN, 248 .split_hdr_size = 0, 249 .offloads = DEV_RX_OFFLOAD_CHECKSUM, 250 }, 251 .rx_adv_conf = { 252 .rss_conf = { 253 .rss_key = NULL, 254 .rss_hf = ETH_RSS_UDP, 255 }, 256 }, 257 .txmode = { 258 .mq_mode = ETH_MQ_TX_NONE, 259 }, 260 .intr_conf = { 261 .rxq = 1, 262 }, 263 }; 264 265 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS]; 266 267 268 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 269 270 #ifdef RTE_ARCH_X86 271 #include <rte_hash_crc.h> 272 #define DEFAULT_HASH_FUNC rte_hash_crc 273 #else 274 #include <rte_jhash.h> 275 #define DEFAULT_HASH_FUNC rte_jhash 276 #endif 277 278 struct ipv4_5tuple { 279 uint32_t ip_dst; 280 uint32_t ip_src; 281 uint16_t port_dst; 282 uint16_t port_src; 283 uint8_t proto; 284 } __attribute__((__packed__)); 285 286 struct ipv6_5tuple { 287 uint8_t ip_dst[IPV6_ADDR_LEN]; 288 uint8_t ip_src[IPV6_ADDR_LEN]; 289 uint16_t port_dst; 290 uint16_t port_src; 291 uint8_t proto; 292 } __attribute__((__packed__)); 293 294 struct ipv4_l3fwd_route { 295 struct ipv4_5tuple key; 296 uint8_t if_out; 297 }; 298 299 struct ipv6_l3fwd_route { 300 struct ipv6_5tuple key; 301 uint8_t if_out; 302 }; 303 304 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = { 305 {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0}, 306 {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1}, 307 {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2}, 308 {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3}, 309 }; 310 311 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = { 312 { 313 { 314 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 315 0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05}, 316 {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 317 0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a}, 318 1, 10, IPPROTO_UDP 319 }, 4 320 }, 321 }; 322 323 typedef struct rte_hash lookup_struct_t; 324 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS]; 325 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS]; 326 327 #define L3FWD_HASH_ENTRIES 1024 328 329 #define IPV4_L3FWD_NUM_ROUTES \ 330 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0])) 331 332 #define IPV6_L3FWD_NUM_ROUTES \ 333 (sizeof(ipv6_l3fwd_route_array) / sizeof(ipv6_l3fwd_route_array[0])) 334 335 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned; 336 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned; 337 #endif 338 339 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 340 struct ipv4_l3fwd_route { 341 uint32_t ip; 342 uint8_t depth; 343 uint8_t if_out; 344 }; 345 346 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = { 347 {RTE_IPV4(1,1,1,0), 24, 0}, 348 {RTE_IPV4(2,1,1,0), 24, 1}, 349 {RTE_IPV4(3,1,1,0), 24, 2}, 350 {RTE_IPV4(4,1,1,0), 24, 3}, 351 {RTE_IPV4(5,1,1,0), 24, 4}, 352 {RTE_IPV4(6,1,1,0), 24, 5}, 353 {RTE_IPV4(7,1,1,0), 24, 6}, 354 {RTE_IPV4(8,1,1,0), 24, 7}, 355 }; 356 357 #define IPV4_L3FWD_NUM_ROUTES \ 358 (sizeof(ipv4_l3fwd_route_array) / sizeof(ipv4_l3fwd_route_array[0])) 359 360 #define IPV4_L3FWD_LPM_MAX_RULES 1024 361 362 typedef struct rte_lpm lookup_struct_t; 363 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS]; 364 #endif 365 366 struct lcore_conf { 367 uint16_t n_rx_queue; 368 struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE]; 369 uint16_t n_tx_port; 370 uint16_t tx_port_id[RTE_MAX_ETHPORTS]; 371 uint16_t tx_queue_id[RTE_MAX_ETHPORTS]; 372 struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS]; 373 lookup_struct_t * ipv4_lookup_struct; 374 lookup_struct_t * ipv6_lookup_struct; 375 } __rte_cache_aligned; 376 377 struct lcore_stats { 378 /* total sleep time in ms since last frequency scaling down */ 379 uint32_t sleep_time; 380 /* number of long sleep recently */ 381 uint32_t nb_long_sleep; 382 /* freq. scaling up trend */ 383 uint32_t trend; 384 /* total packet processed recently */ 385 uint64_t nb_rx_processed; 386 /* total iterations looped recently */ 387 uint64_t nb_iteration_looped; 388 /* 389 * Represents empty and non empty polls 390 * of rte_eth_rx_burst(); 391 * ep_nep[0] holds non empty polls 392 * i.e. 0 < nb_rx <= MAX_BURST 393 * ep_nep[1] holds empty polls. 394 * i.e. nb_rx == 0 395 */ 396 uint64_t ep_nep[2]; 397 /* 398 * Represents full and empty+partial 399 * polls of rte_eth_rx_burst(); 400 * ep_nep[0] holds empty+partial polls. 401 * i.e. 0 <= nb_rx < MAX_BURST 402 * ep_nep[1] holds full polls 403 * i.e. nb_rx == MAX_BURST 404 */ 405 uint64_t fp_nfp[2]; 406 enum busy_rate br; 407 rte_spinlock_t telemetry_lock; 408 } __rte_cache_aligned; 409 410 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned; 411 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned; 412 static struct rte_timer power_timers[RTE_MAX_LCORE]; 413 414 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count); 415 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \ 416 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id); 417 418 419 /* 420 * These defaults are using the max frequency index (1), a medium index (9) 421 * and a typical low frequency index (14). These can be adjusted to use 422 * different indexes using the relevant command line parameters. 423 */ 424 static uint8_t freq_tlb[] = {14, 9, 1}; 425 426 static int is_done(void) 427 { 428 return quit_signal; 429 } 430 431 /* exit signal handler */ 432 static void 433 signal_exit_now(int sigtype) 434 { 435 unsigned lcore_id; 436 unsigned int portid; 437 int ret; 438 439 if (sigtype == SIGINT) { 440 if (app_mode == APP_MODE_EMPTY_POLL || 441 app_mode == APP_MODE_TELEMETRY) 442 quit_signal = true; 443 444 445 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 446 if (rte_lcore_is_enabled(lcore_id) == 0) 447 continue; 448 449 /* init power management library */ 450 ret = rte_power_exit(lcore_id); 451 if (ret) 452 rte_exit(EXIT_FAILURE, "Power management " 453 "library de-initialization failed on " 454 "core%u\n", lcore_id); 455 } 456 457 if (app_mode != APP_MODE_EMPTY_POLL) { 458 RTE_ETH_FOREACH_DEV(portid) { 459 if ((enabled_port_mask & (1 << portid)) == 0) 460 continue; 461 462 rte_eth_dev_stop(portid); 463 rte_eth_dev_close(portid); 464 } 465 } 466 } 467 468 if (app_mode != APP_MODE_EMPTY_POLL) 469 rte_exit(EXIT_SUCCESS, "User forced exit\n"); 470 } 471 472 /* Freqency scale down timer callback */ 473 static void 474 power_timer_cb(__attribute__((unused)) struct rte_timer *tim, 475 __attribute__((unused)) void *arg) 476 { 477 uint64_t hz; 478 float sleep_time_ratio; 479 unsigned lcore_id = rte_lcore_id(); 480 481 /* accumulate total execution time in us when callback is invoked */ 482 sleep_time_ratio = (float)(stats[lcore_id].sleep_time) / 483 (float)SCALING_PERIOD; 484 /** 485 * check whether need to scale down frequency a step if it sleep a lot. 486 */ 487 if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) { 488 if (rte_power_freq_down) 489 rte_power_freq_down(lcore_id); 490 } 491 else if ( (unsigned)(stats[lcore_id].nb_rx_processed / 492 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) { 493 /** 494 * scale down a step if average packet per iteration less 495 * than expectation. 496 */ 497 if (rte_power_freq_down) 498 rte_power_freq_down(lcore_id); 499 } 500 501 /** 502 * initialize another timer according to current frequency to ensure 503 * timer interval is relatively fixed. 504 */ 505 hz = rte_get_timer_hz(); 506 rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND, 507 SINGLE, lcore_id, power_timer_cb, NULL); 508 509 stats[lcore_id].nb_rx_processed = 0; 510 stats[lcore_id].nb_iteration_looped = 0; 511 512 stats[lcore_id].sleep_time = 0; 513 } 514 515 /* Enqueue a single packet, and send burst if queue is filled */ 516 static inline int 517 send_single_packet(struct rte_mbuf *m, uint16_t port) 518 { 519 uint32_t lcore_id; 520 struct lcore_conf *qconf; 521 522 lcore_id = rte_lcore_id(); 523 qconf = &lcore_conf[lcore_id]; 524 525 rte_eth_tx_buffer(port, qconf->tx_queue_id[port], 526 qconf->tx_buffer[port], m); 527 528 return 0; 529 } 530 531 #ifdef DO_RFC_1812_CHECKS 532 static inline int 533 is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len) 534 { 535 /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */ 536 /* 537 * 1. The packet length reported by the Link Layer must be large 538 * enough to hold the minimum length legal IP datagram (20 bytes). 539 */ 540 if (link_len < sizeof(struct rte_ipv4_hdr)) 541 return -1; 542 543 /* 2. The IP checksum must be correct. */ 544 /* this is checked in H/W */ 545 546 /* 547 * 3. The IP version number must be 4. If the version number is not 4 548 * then the packet may be another version of IP, such as IPng or 549 * ST-II. 550 */ 551 if (((pkt->version_ihl) >> 4) != 4) 552 return -3; 553 /* 554 * 4. The IP header length field must be large enough to hold the 555 * minimum length legal IP datagram (20 bytes = 5 words). 556 */ 557 if ((pkt->version_ihl & 0xf) < 5) 558 return -4; 559 560 /* 561 * 5. The IP total length field must be large enough to hold the IP 562 * datagram header, whose length is specified in the IP header length 563 * field. 564 */ 565 if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr)) 566 return -5; 567 568 return 0; 569 } 570 #endif 571 572 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 573 static void 574 print_ipv4_key(struct ipv4_5tuple key) 575 { 576 printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, " 577 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src, 578 key.port_dst, key.port_src, key.proto); 579 } 580 static void 581 print_ipv6_key(struct ipv6_5tuple key) 582 { 583 printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", " 584 "port dst = %d, port src = %d, proto = %d\n", 585 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src), 586 key.port_dst, key.port_src, key.proto); 587 } 588 589 static inline uint16_t 590 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid, 591 lookup_struct_t * ipv4_l3fwd_lookup_struct) 592 { 593 struct ipv4_5tuple key; 594 struct rte_tcp_hdr *tcp; 595 struct rte_udp_hdr *udp; 596 int ret = 0; 597 598 key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr); 599 key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr); 600 key.proto = ipv4_hdr->next_proto_id; 601 602 switch (ipv4_hdr->next_proto_id) { 603 case IPPROTO_TCP: 604 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr + 605 sizeof(struct rte_ipv4_hdr)); 606 key.port_dst = rte_be_to_cpu_16(tcp->dst_port); 607 key.port_src = rte_be_to_cpu_16(tcp->src_port); 608 break; 609 610 case IPPROTO_UDP: 611 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr + 612 sizeof(struct rte_ipv4_hdr)); 613 key.port_dst = rte_be_to_cpu_16(udp->dst_port); 614 key.port_src = rte_be_to_cpu_16(udp->src_port); 615 break; 616 617 default: 618 key.port_dst = 0; 619 key.port_src = 0; 620 break; 621 } 622 623 /* Find destination port */ 624 ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key); 625 return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]); 626 } 627 628 static inline uint16_t 629 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid, 630 lookup_struct_t *ipv6_l3fwd_lookup_struct) 631 { 632 struct ipv6_5tuple key; 633 struct rte_tcp_hdr *tcp; 634 struct rte_udp_hdr *udp; 635 int ret = 0; 636 637 memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN); 638 memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN); 639 640 key.proto = ipv6_hdr->proto; 641 642 switch (ipv6_hdr->proto) { 643 case IPPROTO_TCP: 644 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr + 645 sizeof(struct rte_ipv6_hdr)); 646 key.port_dst = rte_be_to_cpu_16(tcp->dst_port); 647 key.port_src = rte_be_to_cpu_16(tcp->src_port); 648 break; 649 650 case IPPROTO_UDP: 651 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr + 652 sizeof(struct rte_ipv6_hdr)); 653 key.port_dst = rte_be_to_cpu_16(udp->dst_port); 654 key.port_src = rte_be_to_cpu_16(udp->src_port); 655 break; 656 657 default: 658 key.port_dst = 0; 659 key.port_src = 0; 660 break; 661 } 662 663 /* Find destination port */ 664 ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key); 665 return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]); 666 } 667 #endif 668 669 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 670 static inline uint16_t 671 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid, 672 lookup_struct_t *ipv4_l3fwd_lookup_struct) 673 { 674 uint32_t next_hop; 675 676 return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct, 677 rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)? 678 next_hop : portid); 679 } 680 #endif 681 682 static inline void 683 parse_ptype_one(struct rte_mbuf *m) 684 { 685 struct rte_ether_hdr *eth_hdr; 686 uint32_t packet_type = RTE_PTYPE_UNKNOWN; 687 uint16_t ether_type; 688 689 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 690 ether_type = eth_hdr->ether_type; 691 if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4)) 692 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN; 693 else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6)) 694 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN; 695 696 m->packet_type = packet_type; 697 } 698 699 static uint16_t 700 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused, 701 struct rte_mbuf *pkts[], uint16_t nb_pkts, 702 uint16_t max_pkts __rte_unused, 703 void *user_param __rte_unused) 704 { 705 unsigned int i; 706 707 for (i = 0; i < nb_pkts; ++i) 708 parse_ptype_one(pkts[i]); 709 710 return nb_pkts; 711 } 712 713 static int 714 add_cb_parse_ptype(uint16_t portid, uint16_t queueid) 715 { 716 printf("Port %d: softly parse packet type info\n", portid); 717 if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL)) 718 return 0; 719 720 printf("Failed to add rx callback: port=%d\n", portid); 721 return -1; 722 } 723 724 static inline void 725 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid, 726 struct lcore_conf *qconf) 727 { 728 struct rte_ether_hdr *eth_hdr; 729 struct rte_ipv4_hdr *ipv4_hdr; 730 void *d_addr_bytes; 731 uint16_t dst_port; 732 733 eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *); 734 735 if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) { 736 /* Handle IPv4 headers.*/ 737 ipv4_hdr = 738 rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *, 739 sizeof(struct rte_ether_hdr)); 740 741 #ifdef DO_RFC_1812_CHECKS 742 /* Check to make sure the packet is valid (RFC1812) */ 743 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) { 744 rte_pktmbuf_free(m); 745 return; 746 } 747 #endif 748 749 dst_port = get_ipv4_dst_port(ipv4_hdr, portid, 750 qconf->ipv4_lookup_struct); 751 if (dst_port >= RTE_MAX_ETHPORTS || 752 (enabled_port_mask & 1 << dst_port) == 0) 753 dst_port = portid; 754 755 /* 02:00:00:00:00:xx */ 756 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 757 *((uint64_t *)d_addr_bytes) = 758 0x000000000002 + ((uint64_t)dst_port << 40); 759 760 #ifdef DO_RFC_1812_CHECKS 761 /* Update time to live and header checksum */ 762 --(ipv4_hdr->time_to_live); 763 ++(ipv4_hdr->hdr_checksum); 764 #endif 765 766 /* src addr */ 767 rte_ether_addr_copy(&ports_eth_addr[dst_port], 768 ð_hdr->s_addr); 769 770 send_single_packet(m, dst_port); 771 } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) { 772 /* Handle IPv6 headers.*/ 773 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 774 struct rte_ipv6_hdr *ipv6_hdr; 775 776 ipv6_hdr = 777 rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *, 778 sizeof(struct rte_ether_hdr)); 779 780 dst_port = get_ipv6_dst_port(ipv6_hdr, portid, 781 qconf->ipv6_lookup_struct); 782 783 if (dst_port >= RTE_MAX_ETHPORTS || 784 (enabled_port_mask & 1 << dst_port) == 0) 785 dst_port = portid; 786 787 /* 02:00:00:00:00:xx */ 788 d_addr_bytes = ð_hdr->d_addr.addr_bytes[0]; 789 *((uint64_t *)d_addr_bytes) = 790 0x000000000002 + ((uint64_t)dst_port << 40); 791 792 /* src addr */ 793 rte_ether_addr_copy(&ports_eth_addr[dst_port], 794 ð_hdr->s_addr); 795 796 send_single_packet(m, dst_port); 797 #else 798 /* We don't currently handle IPv6 packets in LPM mode. */ 799 rte_pktmbuf_free(m); 800 #endif 801 } else 802 rte_pktmbuf_free(m); 803 804 } 805 806 #define MINIMUM_SLEEP_TIME 1 807 #define SUSPEND_THRESHOLD 300 808 809 static inline uint32_t 810 power_idle_heuristic(uint32_t zero_rx_packet_count) 811 { 812 /* If zero count is less than 100, sleep 1us */ 813 if (zero_rx_packet_count < SUSPEND_THRESHOLD) 814 return MINIMUM_SLEEP_TIME; 815 /* If zero count is less than 1000, sleep 100 us which is the 816 minimum latency switching from C3/C6 to C0 817 */ 818 else 819 return SUSPEND_THRESHOLD; 820 } 821 822 static inline enum freq_scale_hint_t 823 power_freq_scaleup_heuristic(unsigned lcore_id, 824 uint16_t port_id, 825 uint16_t queue_id) 826 { 827 uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id); 828 /** 829 * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries 830 * per iteration 831 */ 832 #define FREQ_GEAR1_RX_PACKET_THRESHOLD MAX_PKT_BURST 833 #define FREQ_GEAR2_RX_PACKET_THRESHOLD (MAX_PKT_BURST*2) 834 #define FREQ_GEAR3_RX_PACKET_THRESHOLD (MAX_PKT_BURST*3) 835 #define FREQ_UP_TREND1_ACC 1 836 #define FREQ_UP_TREND2_ACC 100 837 #define FREQ_UP_THRESHOLD 10000 838 839 if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) { 840 stats[lcore_id].trend = 0; 841 return FREQ_HIGHEST; 842 } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD)) 843 stats[lcore_id].trend += FREQ_UP_TREND2_ACC; 844 else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD)) 845 stats[lcore_id].trend += FREQ_UP_TREND1_ACC; 846 847 if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) { 848 stats[lcore_id].trend = 0; 849 return FREQ_HIGHER; 850 } 851 852 return FREQ_CURRENT; 853 } 854 855 /** 856 * force polling thread sleep until one-shot rx interrupt triggers 857 * @param port_id 858 * Port id. 859 * @param queue_id 860 * Rx queue id. 861 * @return 862 * 0 on success 863 */ 864 static int 865 sleep_until_rx_interrupt(int num) 866 { 867 struct rte_epoll_event event[num]; 868 int n, i; 869 uint16_t port_id; 870 uint8_t queue_id; 871 void *data; 872 873 RTE_LOG(INFO, L3FWD_POWER, 874 "lcore %u sleeps until interrupt triggers\n", 875 rte_lcore_id()); 876 877 n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, -1); 878 for (i = 0; i < n; i++) { 879 data = event[i].epdata.data; 880 port_id = ((uintptr_t)data) >> CHAR_BIT; 881 queue_id = ((uintptr_t)data) & 882 RTE_LEN2MASK(CHAR_BIT, uint8_t); 883 rte_spinlock_lock(&(locks[port_id])); 884 rte_eth_dev_rx_intr_disable(port_id, queue_id); 885 rte_spinlock_unlock(&(locks[port_id])); 886 RTE_LOG(INFO, L3FWD_POWER, 887 "lcore %u is waked up from rx interrupt on" 888 " port %d queue %d\n", 889 rte_lcore_id(), port_id, queue_id); 890 } 891 892 return 0; 893 } 894 895 static void turn_on_intr(struct lcore_conf *qconf) 896 { 897 int i; 898 struct lcore_rx_queue *rx_queue; 899 uint8_t queue_id; 900 uint16_t port_id; 901 902 for (i = 0; i < qconf->n_rx_queue; ++i) { 903 rx_queue = &(qconf->rx_queue_list[i]); 904 port_id = rx_queue->port_id; 905 queue_id = rx_queue->queue_id; 906 907 rte_spinlock_lock(&(locks[port_id])); 908 rte_eth_dev_rx_intr_enable(port_id, queue_id); 909 rte_spinlock_unlock(&(locks[port_id])); 910 } 911 } 912 913 static int event_register(struct lcore_conf *qconf) 914 { 915 struct lcore_rx_queue *rx_queue; 916 uint8_t queueid; 917 uint16_t portid; 918 uint32_t data; 919 int ret; 920 int i; 921 922 for (i = 0; i < qconf->n_rx_queue; ++i) { 923 rx_queue = &(qconf->rx_queue_list[i]); 924 portid = rx_queue->port_id; 925 queueid = rx_queue->queue_id; 926 data = portid << CHAR_BIT | queueid; 927 928 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid, 929 RTE_EPOLL_PER_THREAD, 930 RTE_INTR_EVENT_ADD, 931 (void *)((uintptr_t)data)); 932 if (ret) 933 return ret; 934 } 935 936 return 0; 937 } 938 /* main processing loop */ 939 static int 940 main_telemetry_loop(__attribute__((unused)) void *dummy) 941 { 942 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 943 unsigned int lcore_id; 944 uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc; 945 int i, j, nb_rx; 946 uint8_t queueid; 947 uint16_t portid; 948 struct lcore_conf *qconf; 949 struct lcore_rx_queue *rx_queue; 950 uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0}; 951 uint64_t poll_count; 952 enum busy_rate br; 953 954 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / 955 US_PER_S * BURST_TX_DRAIN_US; 956 957 poll_count = 0; 958 prev_tsc = 0; 959 prev_tel_tsc = 0; 960 961 lcore_id = rte_lcore_id(); 962 qconf = &lcore_conf[lcore_id]; 963 964 if (qconf->n_rx_queue == 0) { 965 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", 966 lcore_id); 967 return 0; 968 } 969 970 RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n", 971 lcore_id); 972 973 for (i = 0; i < qconf->n_rx_queue; i++) { 974 portid = qconf->rx_queue_list[i].port_id; 975 queueid = qconf->rx_queue_list[i].queue_id; 976 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u " 977 "rxqueueid=%hhu\n", lcore_id, portid, queueid); 978 } 979 980 while (!is_done()) { 981 982 cur_tsc = rte_rdtsc(); 983 /* 984 * TX burst queue drain 985 */ 986 diff_tsc = cur_tsc - prev_tsc; 987 if (unlikely(diff_tsc > drain_tsc)) { 988 for (i = 0; i < qconf->n_tx_port; ++i) { 989 portid = qconf->tx_port_id[i]; 990 rte_eth_tx_buffer_flush(portid, 991 qconf->tx_queue_id[portid], 992 qconf->tx_buffer[portid]); 993 } 994 prev_tsc = cur_tsc; 995 } 996 997 /* 998 * Read packet from RX queues 999 */ 1000 for (i = 0; i < qconf->n_rx_queue; ++i) { 1001 rx_queue = &(qconf->rx_queue_list[i]); 1002 portid = rx_queue->port_id; 1003 queueid = rx_queue->queue_id; 1004 1005 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, 1006 MAX_PKT_BURST); 1007 ep_nep[nb_rx == 0]++; 1008 fp_nfp[nb_rx == MAX_PKT_BURST]++; 1009 poll_count++; 1010 if (unlikely(nb_rx == 0)) 1011 continue; 1012 1013 /* Prefetch first packets */ 1014 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 1015 rte_prefetch0(rte_pktmbuf_mtod( 1016 pkts_burst[j], void *)); 1017 } 1018 1019 /* Prefetch and forward already prefetched packets */ 1020 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 1021 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 1022 j + PREFETCH_OFFSET], void *)); 1023 l3fwd_simple_forward(pkts_burst[j], portid, 1024 qconf); 1025 } 1026 1027 /* Forward remaining prefetched packets */ 1028 for (; j < nb_rx; j++) { 1029 l3fwd_simple_forward(pkts_burst[j], portid, 1030 qconf); 1031 } 1032 } 1033 if (unlikely(poll_count >= DEFAULT_COUNT)) { 1034 diff_tsc = cur_tsc - prev_tel_tsc; 1035 if (diff_tsc >= MAX_CYCLES) { 1036 br = FULL; 1037 } else if (diff_tsc > MIN_CYCLES && 1038 diff_tsc < MAX_CYCLES) { 1039 br = (diff_tsc * 100) / MAX_CYCLES; 1040 } else { 1041 br = ZERO; 1042 } 1043 poll_count = 0; 1044 prev_tel_tsc = cur_tsc; 1045 /* update stats for telemetry */ 1046 rte_spinlock_lock(&stats[lcore_id].telemetry_lock); 1047 stats[lcore_id].ep_nep[0] = ep_nep[0]; 1048 stats[lcore_id].ep_nep[1] = ep_nep[1]; 1049 stats[lcore_id].fp_nfp[0] = fp_nfp[0]; 1050 stats[lcore_id].fp_nfp[1] = fp_nfp[1]; 1051 stats[lcore_id].br = br; 1052 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock); 1053 } 1054 } 1055 1056 return 0; 1057 } 1058 /* main processing loop */ 1059 static int 1060 main_empty_poll_loop(__attribute__((unused)) void *dummy) 1061 { 1062 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 1063 unsigned int lcore_id; 1064 uint64_t prev_tsc, diff_tsc, cur_tsc; 1065 int i, j, nb_rx; 1066 uint8_t queueid; 1067 uint16_t portid; 1068 struct lcore_conf *qconf; 1069 struct lcore_rx_queue *rx_queue; 1070 1071 const uint64_t drain_tsc = 1072 (rte_get_tsc_hz() + US_PER_S - 1) / 1073 US_PER_S * BURST_TX_DRAIN_US; 1074 1075 prev_tsc = 0; 1076 1077 lcore_id = rte_lcore_id(); 1078 qconf = &lcore_conf[lcore_id]; 1079 1080 if (qconf->n_rx_queue == 0) { 1081 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", 1082 lcore_id); 1083 return 0; 1084 } 1085 1086 for (i = 0; i < qconf->n_rx_queue; i++) { 1087 portid = qconf->rx_queue_list[i].port_id; 1088 queueid = qconf->rx_queue_list[i].queue_id; 1089 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u " 1090 "rxqueueid=%hhu\n", lcore_id, portid, queueid); 1091 } 1092 1093 while (!is_done()) { 1094 stats[lcore_id].nb_iteration_looped++; 1095 1096 cur_tsc = rte_rdtsc(); 1097 /* 1098 * TX burst queue drain 1099 */ 1100 diff_tsc = cur_tsc - prev_tsc; 1101 if (unlikely(diff_tsc > drain_tsc)) { 1102 for (i = 0; i < qconf->n_tx_port; ++i) { 1103 portid = qconf->tx_port_id[i]; 1104 rte_eth_tx_buffer_flush(portid, 1105 qconf->tx_queue_id[portid], 1106 qconf->tx_buffer[portid]); 1107 } 1108 prev_tsc = cur_tsc; 1109 } 1110 1111 /* 1112 * Read packet from RX queues 1113 */ 1114 for (i = 0; i < qconf->n_rx_queue; ++i) { 1115 rx_queue = &(qconf->rx_queue_list[i]); 1116 rx_queue->idle_hint = 0; 1117 portid = rx_queue->port_id; 1118 queueid = rx_queue->queue_id; 1119 1120 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, 1121 MAX_PKT_BURST); 1122 1123 stats[lcore_id].nb_rx_processed += nb_rx; 1124 1125 if (nb_rx == 0) { 1126 1127 rte_power_empty_poll_stat_update(lcore_id); 1128 1129 continue; 1130 } else { 1131 rte_power_poll_stat_update(lcore_id, nb_rx); 1132 } 1133 1134 1135 /* Prefetch first packets */ 1136 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 1137 rte_prefetch0(rte_pktmbuf_mtod( 1138 pkts_burst[j], void *)); 1139 } 1140 1141 /* Prefetch and forward already prefetched packets */ 1142 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 1143 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 1144 j + PREFETCH_OFFSET], 1145 void *)); 1146 l3fwd_simple_forward(pkts_burst[j], portid, 1147 qconf); 1148 } 1149 1150 /* Forward remaining prefetched packets */ 1151 for (; j < nb_rx; j++) { 1152 l3fwd_simple_forward(pkts_burst[j], portid, 1153 qconf); 1154 } 1155 1156 } 1157 1158 } 1159 1160 return 0; 1161 } 1162 /* main processing loop */ 1163 static int 1164 main_loop(__attribute__((unused)) void *dummy) 1165 { 1166 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 1167 unsigned lcore_id; 1168 uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz; 1169 uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power; 1170 int i, j, nb_rx; 1171 uint8_t queueid; 1172 uint16_t portid; 1173 struct lcore_conf *qconf; 1174 struct lcore_rx_queue *rx_queue; 1175 enum freq_scale_hint_t lcore_scaleup_hint; 1176 uint32_t lcore_rx_idle_count = 0; 1177 uint32_t lcore_idle_hint = 0; 1178 int intr_en = 0; 1179 1180 const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US; 1181 1182 prev_tsc = 0; 1183 hz = rte_get_timer_hz(); 1184 tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND; 1185 1186 lcore_id = rte_lcore_id(); 1187 qconf = &lcore_conf[lcore_id]; 1188 1189 if (qconf->n_rx_queue == 0) { 1190 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id); 1191 return 0; 1192 } 1193 1194 RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id); 1195 1196 for (i = 0; i < qconf->n_rx_queue; i++) { 1197 portid = qconf->rx_queue_list[i].port_id; 1198 queueid = qconf->rx_queue_list[i].queue_id; 1199 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u " 1200 "rxqueueid=%hhu\n", lcore_id, portid, queueid); 1201 } 1202 1203 /* add into event wait list */ 1204 if (event_register(qconf) == 0) 1205 intr_en = 1; 1206 else 1207 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n"); 1208 1209 while (1) { 1210 stats[lcore_id].nb_iteration_looped++; 1211 1212 cur_tsc = rte_rdtsc(); 1213 cur_tsc_power = cur_tsc; 1214 1215 /* 1216 * TX burst queue drain 1217 */ 1218 diff_tsc = cur_tsc - prev_tsc; 1219 if (unlikely(diff_tsc > drain_tsc)) { 1220 for (i = 0; i < qconf->n_tx_port; ++i) { 1221 portid = qconf->tx_port_id[i]; 1222 rte_eth_tx_buffer_flush(portid, 1223 qconf->tx_queue_id[portid], 1224 qconf->tx_buffer[portid]); 1225 } 1226 prev_tsc = cur_tsc; 1227 } 1228 1229 diff_tsc_power = cur_tsc_power - prev_tsc_power; 1230 if (diff_tsc_power > tim_res_tsc) { 1231 rte_timer_manage(); 1232 prev_tsc_power = cur_tsc_power; 1233 } 1234 1235 start_rx: 1236 /* 1237 * Read packet from RX queues 1238 */ 1239 lcore_scaleup_hint = FREQ_CURRENT; 1240 lcore_rx_idle_count = 0; 1241 for (i = 0; i < qconf->n_rx_queue; ++i) { 1242 rx_queue = &(qconf->rx_queue_list[i]); 1243 rx_queue->idle_hint = 0; 1244 portid = rx_queue->port_id; 1245 queueid = rx_queue->queue_id; 1246 1247 nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst, 1248 MAX_PKT_BURST); 1249 1250 stats[lcore_id].nb_rx_processed += nb_rx; 1251 if (unlikely(nb_rx == 0)) { 1252 /** 1253 * no packet received from rx queue, try to 1254 * sleep for a while forcing CPU enter deeper 1255 * C states. 1256 */ 1257 rx_queue->zero_rx_packet_count++; 1258 1259 if (rx_queue->zero_rx_packet_count <= 1260 MIN_ZERO_POLL_COUNT) 1261 continue; 1262 1263 rx_queue->idle_hint = power_idle_heuristic(\ 1264 rx_queue->zero_rx_packet_count); 1265 lcore_rx_idle_count++; 1266 } else { 1267 rx_queue->zero_rx_packet_count = 0; 1268 1269 /** 1270 * do not scale up frequency immediately as 1271 * user to kernel space communication is costly 1272 * which might impact packet I/O for received 1273 * packets. 1274 */ 1275 rx_queue->freq_up_hint = 1276 power_freq_scaleup_heuristic(lcore_id, 1277 portid, queueid); 1278 } 1279 1280 /* Prefetch first packets */ 1281 for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) { 1282 rte_prefetch0(rte_pktmbuf_mtod( 1283 pkts_burst[j], void *)); 1284 } 1285 1286 /* Prefetch and forward already prefetched packets */ 1287 for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) { 1288 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[ 1289 j + PREFETCH_OFFSET], void *)); 1290 l3fwd_simple_forward(pkts_burst[j], portid, 1291 qconf); 1292 } 1293 1294 /* Forward remaining prefetched packets */ 1295 for (; j < nb_rx; j++) { 1296 l3fwd_simple_forward(pkts_burst[j], portid, 1297 qconf); 1298 } 1299 } 1300 1301 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) { 1302 for (i = 1, lcore_scaleup_hint = 1303 qconf->rx_queue_list[0].freq_up_hint; 1304 i < qconf->n_rx_queue; ++i) { 1305 rx_queue = &(qconf->rx_queue_list[i]); 1306 if (rx_queue->freq_up_hint > 1307 lcore_scaleup_hint) 1308 lcore_scaleup_hint = 1309 rx_queue->freq_up_hint; 1310 } 1311 1312 if (lcore_scaleup_hint == FREQ_HIGHEST) { 1313 if (rte_power_freq_max) 1314 rte_power_freq_max(lcore_id); 1315 } else if (lcore_scaleup_hint == FREQ_HIGHER) { 1316 if (rte_power_freq_up) 1317 rte_power_freq_up(lcore_id); 1318 } 1319 } else { 1320 /** 1321 * All Rx queues empty in recent consecutive polls, 1322 * sleep in a conservative manner, meaning sleep as 1323 * less as possible. 1324 */ 1325 for (i = 1, lcore_idle_hint = 1326 qconf->rx_queue_list[0].idle_hint; 1327 i < qconf->n_rx_queue; ++i) { 1328 rx_queue = &(qconf->rx_queue_list[i]); 1329 if (rx_queue->idle_hint < lcore_idle_hint) 1330 lcore_idle_hint = rx_queue->idle_hint; 1331 } 1332 1333 if (lcore_idle_hint < SUSPEND_THRESHOLD) 1334 /** 1335 * execute "pause" instruction to avoid context 1336 * switch which generally take hundred of 1337 * microseconds for short sleep. 1338 */ 1339 rte_delay_us(lcore_idle_hint); 1340 else { 1341 /* suspend until rx interrupt trigges */ 1342 if (intr_en) { 1343 turn_on_intr(qconf); 1344 sleep_until_rx_interrupt( 1345 qconf->n_rx_queue); 1346 /** 1347 * start receiving packets immediately 1348 */ 1349 goto start_rx; 1350 } 1351 } 1352 stats[lcore_id].sleep_time += lcore_idle_hint; 1353 } 1354 } 1355 } 1356 1357 static int 1358 check_lcore_params(void) 1359 { 1360 uint8_t queue, lcore; 1361 uint16_t i; 1362 int socketid; 1363 1364 for (i = 0; i < nb_lcore_params; ++i) { 1365 queue = lcore_params[i].queue_id; 1366 if (queue >= MAX_RX_QUEUE_PER_PORT) { 1367 printf("invalid queue number: %hhu\n", queue); 1368 return -1; 1369 } 1370 lcore = lcore_params[i].lcore_id; 1371 if (!rte_lcore_is_enabled(lcore)) { 1372 printf("error: lcore %hhu is not enabled in lcore " 1373 "mask\n", lcore); 1374 return -1; 1375 } 1376 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) && 1377 (numa_on == 0)) { 1378 printf("warning: lcore %hhu is on socket %d with numa " 1379 "off\n", lcore, socketid); 1380 } 1381 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) { 1382 printf("cannot enable master core %d in config for telemetry mode\n", 1383 rte_lcore_id()); 1384 return -1; 1385 } 1386 } 1387 return 0; 1388 } 1389 1390 static int 1391 check_port_config(void) 1392 { 1393 unsigned portid; 1394 uint16_t i; 1395 1396 for (i = 0; i < nb_lcore_params; ++i) { 1397 portid = lcore_params[i].port_id; 1398 if ((enabled_port_mask & (1 << portid)) == 0) { 1399 printf("port %u is not enabled in port mask\n", 1400 portid); 1401 return -1; 1402 } 1403 if (!rte_eth_dev_is_valid_port(portid)) { 1404 printf("port %u is not present on the board\n", 1405 portid); 1406 return -1; 1407 } 1408 } 1409 return 0; 1410 } 1411 1412 static uint8_t 1413 get_port_n_rx_queues(const uint16_t port) 1414 { 1415 int queue = -1; 1416 uint16_t i; 1417 1418 for (i = 0; i < nb_lcore_params; ++i) { 1419 if (lcore_params[i].port_id == port && 1420 lcore_params[i].queue_id > queue) 1421 queue = lcore_params[i].queue_id; 1422 } 1423 return (uint8_t)(++queue); 1424 } 1425 1426 static int 1427 init_lcore_rx_queues(void) 1428 { 1429 uint16_t i, nb_rx_queue; 1430 uint8_t lcore; 1431 1432 for (i = 0; i < nb_lcore_params; ++i) { 1433 lcore = lcore_params[i].lcore_id; 1434 nb_rx_queue = lcore_conf[lcore].n_rx_queue; 1435 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) { 1436 printf("error: too many queues (%u) for lcore: %u\n", 1437 (unsigned)nb_rx_queue + 1, (unsigned)lcore); 1438 return -1; 1439 } else { 1440 lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id = 1441 lcore_params[i].port_id; 1442 lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id = 1443 lcore_params[i].queue_id; 1444 lcore_conf[lcore].n_rx_queue++; 1445 } 1446 } 1447 return 0; 1448 } 1449 1450 /* display usage */ 1451 static void 1452 print_usage(const char *prgname) 1453 { 1454 printf ("%s [EAL options] -- -p PORTMASK -P" 1455 " [--config (port,queue,lcore)[,(port,queue,lcore]]" 1456 " [--high-perf-cores CORELIST" 1457 " [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]" 1458 " [--enable-jumbo [--max-pkt-len PKTLEN]]\n" 1459 " -p PORTMASK: hexadecimal bitmask of ports to configure\n" 1460 " -P : enable promiscuous mode\n" 1461 " --config (port,queue,lcore): rx queues configuration\n" 1462 " --high-perf-cores CORELIST: list of high performance cores\n" 1463 " --perf-config: similar as config, cores specified as indices" 1464 " for bins containing high or regular performance cores\n" 1465 " --no-numa: optional, disable numa awareness\n" 1466 " --enable-jumbo: enable jumbo frame" 1467 " which max packet len is PKTLEN in decimal (64-9600)\n" 1468 " --parse-ptype: parse packet type by software\n" 1469 " --empty-poll: enable empty poll detection" 1470 " follow (training_flag, high_threshold, med_threshold)\n" 1471 " --telemetry: enable telemetry mode, to update" 1472 " empty polls, full polls, and core busyness to telemetry\n", 1473 prgname); 1474 } 1475 1476 static int parse_max_pkt_len(const char *pktlen) 1477 { 1478 char *end = NULL; 1479 unsigned long len; 1480 1481 /* parse decimal string */ 1482 len = strtoul(pktlen, &end, 10); 1483 if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0')) 1484 return -1; 1485 1486 if (len == 0) 1487 return -1; 1488 1489 return len; 1490 } 1491 1492 static int 1493 parse_portmask(const char *portmask) 1494 { 1495 char *end = NULL; 1496 unsigned long pm; 1497 1498 /* parse hexadecimal string */ 1499 pm = strtoul(portmask, &end, 16); 1500 if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0')) 1501 return -1; 1502 1503 if (pm == 0) 1504 return -1; 1505 1506 return pm; 1507 } 1508 1509 static int 1510 parse_config(const char *q_arg) 1511 { 1512 char s[256]; 1513 const char *p, *p0 = q_arg; 1514 char *end; 1515 enum fieldnames { 1516 FLD_PORT = 0, 1517 FLD_QUEUE, 1518 FLD_LCORE, 1519 _NUM_FLD 1520 }; 1521 unsigned long int_fld[_NUM_FLD]; 1522 char *str_fld[_NUM_FLD]; 1523 int i; 1524 unsigned size; 1525 1526 nb_lcore_params = 0; 1527 1528 while ((p = strchr(p0,'(')) != NULL) { 1529 ++p; 1530 if((p0 = strchr(p,')')) == NULL) 1531 return -1; 1532 1533 size = p0 - p; 1534 if(size >= sizeof(s)) 1535 return -1; 1536 1537 snprintf(s, sizeof(s), "%.*s", size, p); 1538 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') != 1539 _NUM_FLD) 1540 return -1; 1541 for (i = 0; i < _NUM_FLD; i++){ 1542 errno = 0; 1543 int_fld[i] = strtoul(str_fld[i], &end, 0); 1544 if (errno != 0 || end == str_fld[i] || int_fld[i] > 1545 255) 1546 return -1; 1547 } 1548 if (nb_lcore_params >= MAX_LCORE_PARAMS) { 1549 printf("exceeded max number of lcore params: %hu\n", 1550 nb_lcore_params); 1551 return -1; 1552 } 1553 lcore_params_array[nb_lcore_params].port_id = 1554 (uint8_t)int_fld[FLD_PORT]; 1555 lcore_params_array[nb_lcore_params].queue_id = 1556 (uint8_t)int_fld[FLD_QUEUE]; 1557 lcore_params_array[nb_lcore_params].lcore_id = 1558 (uint8_t)int_fld[FLD_LCORE]; 1559 ++nb_lcore_params; 1560 } 1561 lcore_params = lcore_params_array; 1562 1563 return 0; 1564 } 1565 static int 1566 parse_ep_config(const char *q_arg) 1567 { 1568 char s[256]; 1569 const char *p = q_arg; 1570 char *end; 1571 int num_arg; 1572 1573 char *str_fld[3]; 1574 1575 int training_flag; 1576 int med_edpi; 1577 int hgh_edpi; 1578 1579 ep_med_edpi = EMPTY_POLL_MED_THRESHOLD; 1580 ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD; 1581 1582 strlcpy(s, p, sizeof(s)); 1583 1584 num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ','); 1585 1586 empty_poll_train = false; 1587 1588 if (num_arg == 0) 1589 return 0; 1590 1591 if (num_arg == 3) { 1592 1593 training_flag = strtoul(str_fld[0], &end, 0); 1594 med_edpi = strtoul(str_fld[1], &end, 0); 1595 hgh_edpi = strtoul(str_fld[2], &end, 0); 1596 1597 if (training_flag == 1) 1598 empty_poll_train = true; 1599 1600 if (med_edpi > 0) 1601 ep_med_edpi = med_edpi; 1602 1603 if (med_edpi > 0) 1604 ep_hgh_edpi = hgh_edpi; 1605 1606 } else { 1607 1608 return -1; 1609 } 1610 1611 return 0; 1612 1613 } 1614 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype" 1615 #define CMD_LINE_OPT_TELEMETRY "telemetry" 1616 1617 /* Parse the argument given in the command line of the application */ 1618 static int 1619 parse_args(int argc, char **argv) 1620 { 1621 int opt, ret; 1622 char **argvopt; 1623 int option_index; 1624 uint32_t limit; 1625 char *prgname = argv[0]; 1626 static struct option lgopts[] = { 1627 {"config", 1, 0, 0}, 1628 {"perf-config", 1, 0, 0}, 1629 {"high-perf-cores", 1, 0, 0}, 1630 {"no-numa", 0, 0, 0}, 1631 {"enable-jumbo", 0, 0, 0}, 1632 {"empty-poll", 1, 0, 0}, 1633 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0}, 1634 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0}, 1635 {NULL, 0, 0, 0} 1636 }; 1637 1638 argvopt = argv; 1639 1640 while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P", 1641 lgopts, &option_index)) != EOF) { 1642 1643 switch (opt) { 1644 /* portmask */ 1645 case 'p': 1646 enabled_port_mask = parse_portmask(optarg); 1647 if (enabled_port_mask == 0) { 1648 printf("invalid portmask\n"); 1649 print_usage(prgname); 1650 return -1; 1651 } 1652 break; 1653 case 'P': 1654 printf("Promiscuous mode selected\n"); 1655 promiscuous_on = 1; 1656 break; 1657 case 'l': 1658 limit = parse_max_pkt_len(optarg); 1659 freq_tlb[LOW] = limit; 1660 break; 1661 case 'm': 1662 limit = parse_max_pkt_len(optarg); 1663 freq_tlb[MED] = limit; 1664 break; 1665 case 'h': 1666 limit = parse_max_pkt_len(optarg); 1667 freq_tlb[HGH] = limit; 1668 break; 1669 /* long options */ 1670 case 0: 1671 if (!strncmp(lgopts[option_index].name, "config", 6)) { 1672 ret = parse_config(optarg); 1673 if (ret) { 1674 printf("invalid config\n"); 1675 print_usage(prgname); 1676 return -1; 1677 } 1678 } 1679 1680 if (!strncmp(lgopts[option_index].name, 1681 "perf-config", 11)) { 1682 ret = parse_perf_config(optarg); 1683 if (ret) { 1684 printf("invalid perf-config\n"); 1685 print_usage(prgname); 1686 return -1; 1687 } 1688 } 1689 1690 if (!strncmp(lgopts[option_index].name, 1691 "high-perf-cores", 15)) { 1692 ret = parse_perf_core_list(optarg); 1693 if (ret) { 1694 printf("invalid high-perf-cores\n"); 1695 print_usage(prgname); 1696 return -1; 1697 } 1698 } 1699 1700 if (!strncmp(lgopts[option_index].name, 1701 "no-numa", 7)) { 1702 printf("numa is disabled \n"); 1703 numa_on = 0; 1704 } 1705 1706 if (!strncmp(lgopts[option_index].name, 1707 "empty-poll", 10)) { 1708 if (app_mode == APP_MODE_TELEMETRY) { 1709 printf(" empty-poll cannot be enabled as telemetry mode is enabled\n"); 1710 return -1; 1711 } 1712 app_mode = APP_MODE_EMPTY_POLL; 1713 ret = parse_ep_config(optarg); 1714 1715 if (ret) { 1716 printf("invalid empty poll config\n"); 1717 print_usage(prgname); 1718 return -1; 1719 } 1720 printf("empty-poll is enabled\n"); 1721 } 1722 1723 if (!strncmp(lgopts[option_index].name, 1724 CMD_LINE_OPT_TELEMETRY, 1725 sizeof(CMD_LINE_OPT_TELEMETRY))) { 1726 if (app_mode == APP_MODE_EMPTY_POLL) { 1727 printf("telemetry mode cannot be enabled as empty poll mode is enabled\n"); 1728 return -1; 1729 } 1730 app_mode = APP_MODE_TELEMETRY; 1731 printf("telemetry mode is enabled\n"); 1732 } 1733 1734 if (!strncmp(lgopts[option_index].name, 1735 "enable-jumbo", 12)) { 1736 struct option lenopts = 1737 {"max-pkt-len", required_argument, \ 1738 0, 0}; 1739 1740 printf("jumbo frame is enabled \n"); 1741 port_conf.rxmode.offloads |= 1742 DEV_RX_OFFLOAD_JUMBO_FRAME; 1743 port_conf.txmode.offloads |= 1744 DEV_TX_OFFLOAD_MULTI_SEGS; 1745 1746 /** 1747 * if no max-pkt-len set, use the default value 1748 * RTE_ETHER_MAX_LEN 1749 */ 1750 if (0 == getopt_long(argc, argvopt, "", 1751 &lenopts, &option_index)) { 1752 ret = parse_max_pkt_len(optarg); 1753 if ((ret < 64) || 1754 (ret > MAX_JUMBO_PKT_LEN)){ 1755 printf("invalid packet " 1756 "length\n"); 1757 print_usage(prgname); 1758 return -1; 1759 } 1760 port_conf.rxmode.max_rx_pkt_len = ret; 1761 } 1762 printf("set jumbo frame " 1763 "max packet length to %u\n", 1764 (unsigned int)port_conf.rxmode.max_rx_pkt_len); 1765 } 1766 1767 if (!strncmp(lgopts[option_index].name, 1768 CMD_LINE_OPT_PARSE_PTYPE, 1769 sizeof(CMD_LINE_OPT_PARSE_PTYPE))) { 1770 printf("soft parse-ptype is enabled\n"); 1771 parse_ptype = 1; 1772 } 1773 1774 break; 1775 1776 default: 1777 print_usage(prgname); 1778 return -1; 1779 } 1780 } 1781 1782 if (optind >= 0) 1783 argv[optind-1] = prgname; 1784 1785 ret = optind-1; 1786 optind = 1; /* reset getopt lib */ 1787 return ret; 1788 } 1789 1790 static void 1791 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr) 1792 { 1793 char buf[RTE_ETHER_ADDR_FMT_SIZE]; 1794 rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr); 1795 printf("%s%s", name, buf); 1796 } 1797 1798 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1799 static void 1800 setup_hash(int socketid) 1801 { 1802 struct rte_hash_parameters ipv4_l3fwd_hash_params = { 1803 .name = NULL, 1804 .entries = L3FWD_HASH_ENTRIES, 1805 .key_len = sizeof(struct ipv4_5tuple), 1806 .hash_func = DEFAULT_HASH_FUNC, 1807 .hash_func_init_val = 0, 1808 }; 1809 1810 struct rte_hash_parameters ipv6_l3fwd_hash_params = { 1811 .name = NULL, 1812 .entries = L3FWD_HASH_ENTRIES, 1813 .key_len = sizeof(struct ipv6_5tuple), 1814 .hash_func = DEFAULT_HASH_FUNC, 1815 .hash_func_init_val = 0, 1816 }; 1817 1818 unsigned i; 1819 int ret; 1820 char s[64]; 1821 1822 /* create ipv4 hash */ 1823 snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid); 1824 ipv4_l3fwd_hash_params.name = s; 1825 ipv4_l3fwd_hash_params.socket_id = socketid; 1826 ipv4_l3fwd_lookup_struct[socketid] = 1827 rte_hash_create(&ipv4_l3fwd_hash_params); 1828 if (ipv4_l3fwd_lookup_struct[socketid] == NULL) 1829 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on " 1830 "socket %d\n", socketid); 1831 1832 /* create ipv6 hash */ 1833 snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid); 1834 ipv6_l3fwd_hash_params.name = s; 1835 ipv6_l3fwd_hash_params.socket_id = socketid; 1836 ipv6_l3fwd_lookup_struct[socketid] = 1837 rte_hash_create(&ipv6_l3fwd_hash_params); 1838 if (ipv6_l3fwd_lookup_struct[socketid] == NULL) 1839 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on " 1840 "socket %d\n", socketid); 1841 1842 1843 /* populate the ipv4 hash */ 1844 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) { 1845 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid], 1846 (void *) &ipv4_l3fwd_route_array[i].key); 1847 if (ret < 0) { 1848 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the" 1849 "l3fwd hash on socket %d\n", i, socketid); 1850 } 1851 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out; 1852 printf("Hash: Adding key\n"); 1853 print_ipv4_key(ipv4_l3fwd_route_array[i].key); 1854 } 1855 1856 /* populate the ipv6 hash */ 1857 for (i = 0; i < IPV6_L3FWD_NUM_ROUTES; i++) { 1858 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid], 1859 (void *) &ipv6_l3fwd_route_array[i].key); 1860 if (ret < 0) { 1861 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the" 1862 "l3fwd hash on socket %d\n", i, socketid); 1863 } 1864 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out; 1865 printf("Hash: Adding key\n"); 1866 print_ipv6_key(ipv6_l3fwd_route_array[i].key); 1867 } 1868 } 1869 #endif 1870 1871 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 1872 static void 1873 setup_lpm(int socketid) 1874 { 1875 unsigned i; 1876 int ret; 1877 char s[64]; 1878 1879 /* create the LPM table */ 1880 struct rte_lpm_config lpm_ipv4_config; 1881 1882 lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES; 1883 lpm_ipv4_config.number_tbl8s = 256; 1884 lpm_ipv4_config.flags = 0; 1885 1886 snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid); 1887 ipv4_l3fwd_lookup_struct[socketid] = 1888 rte_lpm_create(s, socketid, &lpm_ipv4_config); 1889 if (ipv4_l3fwd_lookup_struct[socketid] == NULL) 1890 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table" 1891 " on socket %d\n", socketid); 1892 1893 /* populate the LPM table */ 1894 for (i = 0; i < IPV4_L3FWD_NUM_ROUTES; i++) { 1895 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid], 1896 ipv4_l3fwd_route_array[i].ip, 1897 ipv4_l3fwd_route_array[i].depth, 1898 ipv4_l3fwd_route_array[i].if_out); 1899 1900 if (ret < 0) { 1901 rte_exit(EXIT_FAILURE, "Unable to add entry %u to the " 1902 "l3fwd LPM table on socket %d\n", 1903 i, socketid); 1904 } 1905 1906 printf("LPM: Adding route 0x%08x / %d (%d)\n", 1907 (unsigned)ipv4_l3fwd_route_array[i].ip, 1908 ipv4_l3fwd_route_array[i].depth, 1909 ipv4_l3fwd_route_array[i].if_out); 1910 } 1911 } 1912 #endif 1913 1914 static int 1915 init_mem(unsigned nb_mbuf) 1916 { 1917 struct lcore_conf *qconf; 1918 int socketid; 1919 unsigned lcore_id; 1920 char s[64]; 1921 1922 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 1923 if (rte_lcore_is_enabled(lcore_id) == 0) 1924 continue; 1925 1926 if (numa_on) 1927 socketid = rte_lcore_to_socket_id(lcore_id); 1928 else 1929 socketid = 0; 1930 1931 if (socketid >= NB_SOCKETS) { 1932 rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is " 1933 "out of range %d\n", socketid, 1934 lcore_id, NB_SOCKETS); 1935 } 1936 if (pktmbuf_pool[socketid] == NULL) { 1937 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid); 1938 pktmbuf_pool[socketid] = 1939 rte_pktmbuf_pool_create(s, nb_mbuf, 1940 MEMPOOL_CACHE_SIZE, 0, 1941 RTE_MBUF_DEFAULT_BUF_SIZE, 1942 socketid); 1943 if (pktmbuf_pool[socketid] == NULL) 1944 rte_exit(EXIT_FAILURE, 1945 "Cannot init mbuf pool on socket %d\n", 1946 socketid); 1947 else 1948 printf("Allocated mbuf pool on socket %d\n", 1949 socketid); 1950 1951 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 1952 setup_lpm(socketid); 1953 #else 1954 setup_hash(socketid); 1955 #endif 1956 } 1957 qconf = &lcore_conf[lcore_id]; 1958 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid]; 1959 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 1960 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid]; 1961 #endif 1962 } 1963 return 0; 1964 } 1965 1966 /* Check the link status of all ports in up to 9s, and print them finally */ 1967 static void 1968 check_all_ports_link_status(uint32_t port_mask) 1969 { 1970 #define CHECK_INTERVAL 100 /* 100ms */ 1971 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */ 1972 uint8_t count, all_ports_up, print_flag = 0; 1973 uint16_t portid; 1974 struct rte_eth_link link; 1975 int ret; 1976 1977 printf("\nChecking link status"); 1978 fflush(stdout); 1979 for (count = 0; count <= MAX_CHECK_TIME; count++) { 1980 all_ports_up = 1; 1981 RTE_ETH_FOREACH_DEV(portid) { 1982 if ((port_mask & (1 << portid)) == 0) 1983 continue; 1984 memset(&link, 0, sizeof(link)); 1985 ret = rte_eth_link_get_nowait(portid, &link); 1986 if (ret < 0) { 1987 all_ports_up = 0; 1988 if (print_flag == 1) 1989 printf("Port %u link get failed: %s\n", 1990 portid, rte_strerror(-ret)); 1991 continue; 1992 } 1993 /* print link status if flag set */ 1994 if (print_flag == 1) { 1995 if (link.link_status) 1996 printf("Port %d Link Up - speed %u " 1997 "Mbps - %s\n", (uint8_t)portid, 1998 (unsigned)link.link_speed, 1999 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 2000 ("full-duplex") : ("half-duplex\n")); 2001 else 2002 printf("Port %d Link Down\n", 2003 (uint8_t)portid); 2004 continue; 2005 } 2006 /* clear all_ports_up flag if any link down */ 2007 if (link.link_status == ETH_LINK_DOWN) { 2008 all_ports_up = 0; 2009 break; 2010 } 2011 } 2012 /* after finally printing all link status, get out */ 2013 if (print_flag == 1) 2014 break; 2015 2016 if (all_ports_up == 0) { 2017 printf("."); 2018 fflush(stdout); 2019 rte_delay_ms(CHECK_INTERVAL); 2020 } 2021 2022 /* set the print_flag if all ports up or timeout */ 2023 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) { 2024 print_flag = 1; 2025 printf("done\n"); 2026 } 2027 } 2028 } 2029 2030 static int check_ptype(uint16_t portid) 2031 { 2032 int i, ret; 2033 int ptype_l3_ipv4 = 0; 2034 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 2035 int ptype_l3_ipv6 = 0; 2036 #endif 2037 uint32_t ptype_mask = RTE_PTYPE_L3_MASK; 2038 2039 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0); 2040 if (ret <= 0) 2041 return 0; 2042 2043 uint32_t ptypes[ret]; 2044 2045 ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret); 2046 for (i = 0; i < ret; ++i) { 2047 if (ptypes[i] & RTE_PTYPE_L3_IPV4) 2048 ptype_l3_ipv4 = 1; 2049 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 2050 if (ptypes[i] & RTE_PTYPE_L3_IPV6) 2051 ptype_l3_ipv6 = 1; 2052 #endif 2053 } 2054 2055 if (ptype_l3_ipv4 == 0) 2056 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid); 2057 2058 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH) 2059 if (ptype_l3_ipv6 == 0) 2060 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid); 2061 #endif 2062 2063 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM) 2064 if (ptype_l3_ipv4) 2065 #else /* APP_LOOKUP_EXACT_MATCH */ 2066 if (ptype_l3_ipv4 && ptype_l3_ipv6) 2067 #endif 2068 return 1; 2069 2070 return 0; 2071 2072 } 2073 2074 static int 2075 init_power_library(void) 2076 { 2077 int ret = 0, lcore_id; 2078 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 2079 if (rte_lcore_is_enabled(lcore_id)) { 2080 /* init power management library */ 2081 ret = rte_power_init(lcore_id); 2082 if (ret) 2083 RTE_LOG(ERR, POWER, 2084 "Library initialization failed on core %u\n", 2085 lcore_id); 2086 } 2087 } 2088 return ret; 2089 } 2090 static void 2091 update_telemetry(__attribute__((unused)) struct rte_timer *tim, 2092 __attribute__((unused)) void *arg) 2093 { 2094 unsigned int lcore_id = rte_lcore_id(); 2095 struct lcore_conf *qconf; 2096 uint64_t app_eps = 0, app_fps = 0, app_br = 0; 2097 uint64_t values[3] = {0}; 2098 int ret; 2099 uint64_t count = 0; 2100 2101 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 2102 qconf = &lcore_conf[lcore_id]; 2103 if (qconf->n_rx_queue == 0) 2104 continue; 2105 count++; 2106 rte_spinlock_lock(&stats[lcore_id].telemetry_lock); 2107 app_eps += stats[lcore_id].ep_nep[1]; 2108 app_fps += stats[lcore_id].fp_nfp[1]; 2109 app_br += stats[lcore_id].br; 2110 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock); 2111 } 2112 2113 if (count > 0) { 2114 values[0] = app_eps/count; 2115 values[1] = app_fps/count; 2116 values[2] = app_br/count; 2117 } else { 2118 values[0] = 0; 2119 values[1] = 0; 2120 values[2] = 0; 2121 } 2122 2123 ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index, 2124 values, RTE_DIM(values)); 2125 if (ret < 0) 2126 RTE_LOG(WARNING, POWER, "failed to update metrcis\n"); 2127 } 2128 static void 2129 telemetry_setup_timer(void) 2130 { 2131 int lcore_id = rte_lcore_id(); 2132 uint64_t hz = rte_get_timer_hz(); 2133 uint64_t ticks; 2134 2135 ticks = hz / TELEMETRY_INTERVALS_PER_SEC; 2136 rte_timer_reset_sync(&telemetry_timer, 2137 ticks, 2138 PERIODICAL, 2139 lcore_id, 2140 update_telemetry, 2141 NULL); 2142 } 2143 static void 2144 empty_poll_setup_timer(void) 2145 { 2146 int lcore_id = rte_lcore_id(); 2147 uint64_t hz = rte_get_timer_hz(); 2148 2149 struct ep_params *ep_ptr = ep_params; 2150 2151 ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND; 2152 2153 rte_timer_reset_sync(&ep_ptr->timer0, 2154 ep_ptr->interval_ticks, 2155 PERIODICAL, 2156 lcore_id, 2157 rte_empty_poll_detection, 2158 (void *)ep_ptr); 2159 2160 } 2161 static int 2162 launch_timer(unsigned int lcore_id) 2163 { 2164 int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms; 2165 2166 RTE_SET_USED(lcore_id); 2167 2168 2169 if (rte_get_master_lcore() != lcore_id) { 2170 rte_panic("timer on lcore:%d which is not master core:%d\n", 2171 lcore_id, 2172 rte_get_master_lcore()); 2173 } 2174 2175 RTE_LOG(INFO, POWER, "Bring up the Timer\n"); 2176 2177 if (app_mode == APP_MODE_EMPTY_POLL) 2178 empty_poll_setup_timer(); 2179 else 2180 telemetry_setup_timer(); 2181 2182 cycles_10ms = rte_get_timer_hz() / 100; 2183 2184 while (!is_done()) { 2185 cur_tsc = rte_rdtsc(); 2186 diff_tsc = cur_tsc - prev_tsc; 2187 if (diff_tsc > cycles_10ms) { 2188 rte_timer_manage(); 2189 prev_tsc = cur_tsc; 2190 cycles_10ms = rte_get_timer_hz() / 100; 2191 } 2192 } 2193 2194 RTE_LOG(INFO, POWER, "Timer_subsystem is done\n"); 2195 2196 return 0; 2197 } 2198 2199 2200 int 2201 main(int argc, char **argv) 2202 { 2203 struct lcore_conf *qconf; 2204 struct rte_eth_dev_info dev_info; 2205 struct rte_eth_txconf *txconf; 2206 int ret; 2207 uint16_t nb_ports; 2208 uint16_t queueid; 2209 unsigned lcore_id; 2210 uint64_t hz; 2211 uint32_t n_tx_queue, nb_lcores; 2212 uint32_t dev_rxq_num, dev_txq_num; 2213 uint8_t nb_rx_queue, queue, socketid; 2214 uint16_t portid; 2215 uint8_t num_telstats = RTE_DIM(telstats_strings); 2216 const char *ptr_strings[num_telstats]; 2217 2218 /* catch SIGINT and restore cpufreq governor to ondemand */ 2219 signal(SIGINT, signal_exit_now); 2220 2221 /* init EAL */ 2222 ret = rte_eal_init(argc, argv); 2223 if (ret < 0) 2224 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n"); 2225 argc -= ret; 2226 argv += ret; 2227 2228 /* init RTE timer library to be used late */ 2229 rte_timer_subsystem_init(); 2230 2231 /* parse application arguments (after the EAL ones) */ 2232 ret = parse_args(argc, argv); 2233 if (ret < 0) 2234 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n"); 2235 2236 if (init_power_library()) 2237 RTE_LOG(ERR, L3FWD_POWER, "init_power_library failed\n"); 2238 2239 if (update_lcore_params() < 0) 2240 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n"); 2241 2242 if (check_lcore_params() < 0) 2243 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n"); 2244 2245 ret = init_lcore_rx_queues(); 2246 if (ret < 0) 2247 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n"); 2248 2249 nb_ports = rte_eth_dev_count_avail(); 2250 2251 if (check_port_config() < 0) 2252 rte_exit(EXIT_FAILURE, "check_port_config failed\n"); 2253 2254 nb_lcores = rte_lcore_count(); 2255 2256 /* initialize all ports */ 2257 RTE_ETH_FOREACH_DEV(portid) { 2258 struct rte_eth_conf local_port_conf = port_conf; 2259 2260 /* skip ports that are not enabled */ 2261 if ((enabled_port_mask & (1 << portid)) == 0) { 2262 printf("\nSkipping disabled port %d\n", portid); 2263 continue; 2264 } 2265 2266 /* init port */ 2267 printf("Initializing port %d ... ", portid ); 2268 fflush(stdout); 2269 2270 ret = rte_eth_dev_info_get(portid, &dev_info); 2271 if (ret != 0) 2272 rte_exit(EXIT_FAILURE, 2273 "Error during getting device (port %u) info: %s\n", 2274 portid, strerror(-ret)); 2275 2276 dev_rxq_num = dev_info.max_rx_queues; 2277 dev_txq_num = dev_info.max_tx_queues; 2278 2279 nb_rx_queue = get_port_n_rx_queues(portid); 2280 if (nb_rx_queue > dev_rxq_num) 2281 rte_exit(EXIT_FAILURE, 2282 "Cannot configure not existed rxq: " 2283 "port=%d\n", portid); 2284 2285 n_tx_queue = nb_lcores; 2286 if (n_tx_queue > dev_txq_num) 2287 n_tx_queue = dev_txq_num; 2288 printf("Creating queues: nb_rxq=%d nb_txq=%u... ", 2289 nb_rx_queue, (unsigned)n_tx_queue ); 2290 /* If number of Rx queue is 0, no need to enable Rx interrupt */ 2291 if (nb_rx_queue == 0) 2292 local_port_conf.intr_conf.rxq = 0; 2293 2294 ret = rte_eth_dev_info_get(portid, &dev_info); 2295 if (ret != 0) 2296 rte_exit(EXIT_FAILURE, 2297 "Error during getting device (port %u) info: %s\n", 2298 portid, strerror(-ret)); 2299 2300 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE) 2301 local_port_conf.txmode.offloads |= 2302 DEV_TX_OFFLOAD_MBUF_FAST_FREE; 2303 2304 local_port_conf.rx_adv_conf.rss_conf.rss_hf &= 2305 dev_info.flow_type_rss_offloads; 2306 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf != 2307 port_conf.rx_adv_conf.rss_conf.rss_hf) { 2308 printf("Port %u modified RSS hash function based on hardware support," 2309 "requested:%#"PRIx64" configured:%#"PRIx64"\n", 2310 portid, 2311 port_conf.rx_adv_conf.rss_conf.rss_hf, 2312 local_port_conf.rx_adv_conf.rss_conf.rss_hf); 2313 } 2314 2315 ret = rte_eth_dev_configure(portid, nb_rx_queue, 2316 (uint16_t)n_tx_queue, &local_port_conf); 2317 if (ret < 0) 2318 rte_exit(EXIT_FAILURE, "Cannot configure device: " 2319 "err=%d, port=%d\n", ret, portid); 2320 2321 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd, 2322 &nb_txd); 2323 if (ret < 0) 2324 rte_exit(EXIT_FAILURE, 2325 "Cannot adjust number of descriptors: err=%d, port=%d\n", 2326 ret, portid); 2327 2328 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 2329 if (ret < 0) 2330 rte_exit(EXIT_FAILURE, 2331 "Cannot get MAC address: err=%d, port=%d\n", 2332 ret, portid); 2333 2334 print_ethaddr(" Address:", &ports_eth_addr[portid]); 2335 printf(", "); 2336 2337 /* init memory */ 2338 ret = init_mem(NB_MBUF); 2339 if (ret < 0) 2340 rte_exit(EXIT_FAILURE, "init_mem failed\n"); 2341 2342 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 2343 if (rte_lcore_is_enabled(lcore_id) == 0) 2344 continue; 2345 2346 /* Initialize TX buffers */ 2347 qconf = &lcore_conf[lcore_id]; 2348 qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer", 2349 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0, 2350 rte_eth_dev_socket_id(portid)); 2351 if (qconf->tx_buffer[portid] == NULL) 2352 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n", 2353 portid); 2354 2355 rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST); 2356 } 2357 2358 /* init one TX queue per couple (lcore,port) */ 2359 queueid = 0; 2360 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 2361 if (rte_lcore_is_enabled(lcore_id) == 0) 2362 continue; 2363 2364 if (queueid >= dev_txq_num) 2365 continue; 2366 2367 if (numa_on) 2368 socketid = \ 2369 (uint8_t)rte_lcore_to_socket_id(lcore_id); 2370 else 2371 socketid = 0; 2372 2373 printf("txq=%u,%d,%d ", lcore_id, queueid, socketid); 2374 fflush(stdout); 2375 2376 txconf = &dev_info.default_txconf; 2377 txconf->offloads = local_port_conf.txmode.offloads; 2378 ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd, 2379 socketid, txconf); 2380 if (ret < 0) 2381 rte_exit(EXIT_FAILURE, 2382 "rte_eth_tx_queue_setup: err=%d, " 2383 "port=%d\n", ret, portid); 2384 2385 qconf = &lcore_conf[lcore_id]; 2386 qconf->tx_queue_id[portid] = queueid; 2387 queueid++; 2388 2389 qconf->tx_port_id[qconf->n_tx_port] = portid; 2390 qconf->n_tx_port++; 2391 } 2392 printf("\n"); 2393 } 2394 2395 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 2396 if (rte_lcore_is_enabled(lcore_id) == 0) 2397 continue; 2398 2399 if (app_mode == APP_MODE_LEGACY) { 2400 /* init timer structures for each enabled lcore */ 2401 rte_timer_init(&power_timers[lcore_id]); 2402 hz = rte_get_timer_hz(); 2403 rte_timer_reset(&power_timers[lcore_id], 2404 hz/TIMER_NUMBER_PER_SECOND, 2405 SINGLE, lcore_id, 2406 power_timer_cb, NULL); 2407 } 2408 qconf = &lcore_conf[lcore_id]; 2409 printf("\nInitializing rx queues on lcore %u ... ", lcore_id ); 2410 fflush(stdout); 2411 /* init RX queues */ 2412 for(queue = 0; queue < qconf->n_rx_queue; ++queue) { 2413 struct rte_eth_rxconf rxq_conf; 2414 2415 portid = qconf->rx_queue_list[queue].port_id; 2416 queueid = qconf->rx_queue_list[queue].queue_id; 2417 2418 if (numa_on) 2419 socketid = \ 2420 (uint8_t)rte_lcore_to_socket_id(lcore_id); 2421 else 2422 socketid = 0; 2423 2424 printf("rxq=%d,%d,%d ", portid, queueid, socketid); 2425 fflush(stdout); 2426 2427 ret = rte_eth_dev_info_get(portid, &dev_info); 2428 if (ret != 0) 2429 rte_exit(EXIT_FAILURE, 2430 "Error during getting device (port %u) info: %s\n", 2431 portid, strerror(-ret)); 2432 2433 rxq_conf = dev_info.default_rxconf; 2434 rxq_conf.offloads = port_conf.rxmode.offloads; 2435 ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd, 2436 socketid, &rxq_conf, 2437 pktmbuf_pool[socketid]); 2438 if (ret < 0) 2439 rte_exit(EXIT_FAILURE, 2440 "rte_eth_rx_queue_setup: err=%d, " 2441 "port=%d\n", ret, portid); 2442 2443 if (parse_ptype) { 2444 if (add_cb_parse_ptype(portid, queueid) < 0) 2445 rte_exit(EXIT_FAILURE, 2446 "Fail to add ptype cb\n"); 2447 } else if (!check_ptype(portid)) 2448 rte_exit(EXIT_FAILURE, 2449 "PMD can not provide needed ptypes\n"); 2450 } 2451 } 2452 2453 printf("\n"); 2454 2455 /* start ports */ 2456 RTE_ETH_FOREACH_DEV(portid) { 2457 if ((enabled_port_mask & (1 << portid)) == 0) { 2458 continue; 2459 } 2460 /* Start device */ 2461 ret = rte_eth_dev_start(portid); 2462 if (ret < 0) 2463 rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, " 2464 "port=%d\n", ret, portid); 2465 /* 2466 * If enabled, put device in promiscuous mode. 2467 * This allows IO forwarding mode to forward packets 2468 * to itself through 2 cross-connected ports of the 2469 * target machine. 2470 */ 2471 if (promiscuous_on) { 2472 ret = rte_eth_promiscuous_enable(portid); 2473 if (ret != 0) 2474 rte_exit(EXIT_FAILURE, 2475 "rte_eth_promiscuous_enable: err=%s, port=%u\n", 2476 rte_strerror(-ret), portid); 2477 } 2478 /* initialize spinlock for each port */ 2479 rte_spinlock_init(&(locks[portid])); 2480 } 2481 2482 check_all_ports_link_status(enabled_port_mask); 2483 2484 if (app_mode == APP_MODE_EMPTY_POLL) { 2485 2486 if (empty_poll_train) { 2487 policy.state = TRAINING; 2488 } else { 2489 policy.state = MED_NORMAL; 2490 policy.med_base_edpi = ep_med_edpi; 2491 policy.hgh_base_edpi = ep_hgh_edpi; 2492 } 2493 2494 ret = rte_power_empty_poll_stat_init(&ep_params, 2495 freq_tlb, 2496 &policy); 2497 if (ret < 0) 2498 rte_exit(EXIT_FAILURE, "empty poll init failed"); 2499 } 2500 2501 2502 /* launch per-lcore init on every lcore */ 2503 if (app_mode == APP_MODE_LEGACY) { 2504 rte_eal_mp_remote_launch(main_loop, NULL, CALL_MASTER); 2505 } else if (app_mode == APP_MODE_EMPTY_POLL) { 2506 empty_poll_stop = false; 2507 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL, 2508 SKIP_MASTER); 2509 } else { 2510 unsigned int i; 2511 2512 /* Init metrics library */ 2513 rte_metrics_init(rte_socket_id()); 2514 /** Register stats with metrics library */ 2515 for (i = 0; i < num_telstats; i++) 2516 ptr_strings[i] = telstats_strings[i].name; 2517 2518 ret = rte_metrics_reg_names(ptr_strings, num_telstats); 2519 if (ret >= 0) 2520 telstats_index = ret; 2521 else 2522 rte_exit(EXIT_FAILURE, "failed to register metrics names"); 2523 2524 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 2525 rte_spinlock_init(&stats[lcore_id].telemetry_lock); 2526 } 2527 rte_timer_init(&telemetry_timer); 2528 rte_eal_mp_remote_launch(main_telemetry_loop, NULL, 2529 SKIP_MASTER); 2530 } 2531 2532 if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY) 2533 launch_timer(rte_lcore_id()); 2534 2535 RTE_LCORE_FOREACH_SLAVE(lcore_id) { 2536 if (rte_eal_wait_lcore(lcore_id) < 0) 2537 return -1; 2538 } 2539 2540 if (app_mode == APP_MODE_EMPTY_POLL) 2541 rte_power_empty_poll_stat_free(); 2542 2543 return 0; 2544 } 2545