examples/l3fwd-power/main.c

   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 #include <rte_telemetry.h>
  50
  51 #include "perf_core.h"
  52 #include "main.h"
  53
  54 #define RTE_LOGTYPE_L3FWD_POWER RTE_LOGTYPE_USER1
  55
  56 #define MAX_PKT_BURST 32
  57
  58 #define MIN_ZERO_POLL_COUNT 10
  59
  60 /* 100 ms interval */
  61 #define TIMER_NUMBER_PER_SECOND           10
  62 /* (10ms) */
  63 #define INTERVALS_PER_SECOND             100
  64 /* 100000 us */
  65 #define SCALING_PERIOD                    (1000000/TIMER_NUMBER_PER_SECOND)
  66 #define SCALING_DOWN_TIME_RATIO_THRESHOLD 0.25
  67
  68 #define APP_LOOKUP_EXACT_MATCH          0
  69 #define APP_LOOKUP_LPM                  1
  70 #define DO_RFC_1812_CHECKS
  71
  72 #ifndef APP_LOOKUP_METHOD
  73 #define APP_LOOKUP_METHOD             APP_LOOKUP_LPM
  74 #endif
  75
  76 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
  77 #include <rte_hash.h>
  78 #elif (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
  79 #include <rte_lpm.h>
  80 #else
  81 #error "APP_LOOKUP_METHOD set to incorrect value"
  82 #endif
  83
  84 #ifndef IPv6_BYTES
  85 #define IPv6_BYTES_FMT "%02x%02x:%02x%02x:%02x%02x:%02x%02x:"\
  86                        "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
  87 #define IPv6_BYTES(addr) \
  88         addr[0],  addr[1], addr[2],  addr[3], \
  89         addr[4],  addr[5], addr[6],  addr[7], \
  90         addr[8],  addr[9], addr[10], addr[11],\
  91         addr[12], addr[13],addr[14], addr[15]
  92 #endif
  93
  94 #define MAX_JUMBO_PKT_LEN  9600
  95
  96 #define IPV6_ADDR_LEN 16
  97
  98 #define MEMPOOL_CACHE_SIZE 256
  99
 100 /*
 101  * This expression is used to calculate the number of mbufs needed depending on
 102  * user input, taking into account memory for rx and tx hardware rings, cache
 103  * per lcore and mtable per port per lcore. RTE_MAX is used to ensure that
 104  * NB_MBUF never goes below a minimum value of 8192.
 105  */
 106
 107 #define NB_MBUF RTE_MAX ( \
 108         (nb_ports*nb_rx_queue*nb_rxd + \
 109         nb_ports*nb_lcores*MAX_PKT_BURST + \
 110         nb_ports*n_tx_queue*nb_txd + \
 111         nb_lcores*MEMPOOL_CACHE_SIZE), \
 112         (unsigned)8192)
 113
 114 #define BURST_TX_DRAIN_US 100 /* TX drain every ~100us */
 115
 116 #define NB_SOCKETS 8
 117
 118 /* Configure how many packets ahead to prefetch, when reading packets */
 119 #define PREFETCH_OFFSET 3
 120
 121 /*
 122  * Configurable number of RX/TX ring descriptors
 123  */
 124 #define RTE_TEST_RX_DESC_DEFAULT 1024
 125 #define RTE_TEST_TX_DESC_DEFAULT 1024
 126
 127 /*
 128  * These two thresholds were decided on by running the training algorithm on
 129  * a 2.5GHz Xeon. These defaults can be overridden by supplying non-zero values
 130  * for the med_threshold and high_threshold parameters on the command line.
 131  */
 132 #define EMPTY_POLL_MED_THRESHOLD 350000UL
 133 #define EMPTY_POLL_HGH_THRESHOLD 580000UL
 134
 135 #define NUM_TELSTATS RTE_DIM(telstats_strings)
 136
 137 static uint16_t nb_rxd = RTE_TEST_RX_DESC_DEFAULT;
 138 static uint16_t nb_txd = RTE_TEST_TX_DESC_DEFAULT;
 139
 140 /* ethernet addresses of ports */
 141 static struct rte_ether_addr ports_eth_addr[RTE_MAX_ETHPORTS];
 142
 143 /* ethernet addresses of ports */
 144 static rte_spinlock_t locks[RTE_MAX_ETHPORTS];
 145
 146 /* mask of enabled ports */
 147 static uint32_t enabled_port_mask = 0;
 148 /* Ports set in promiscuous mode off by default. */
 149 static int promiscuous_on = 0;
 150 /* NUMA is enabled by default. */
 151 static int numa_on = 1;
 152 static bool empty_poll_stop;
 153 static bool empty_poll_train;
 154 volatile bool quit_signal;
 155 static struct  ep_params *ep_params;
 156 static struct  ep_policy policy;
 157 static long  ep_med_edpi, ep_hgh_edpi;
 158 /* timer to update telemetry every 500ms */
 159 static struct rte_timer telemetry_timer;
 160
 161 /* stats index returned by metrics lib */
 162 int telstats_index;
 163
 164 struct telstats_name {
 165         char name[RTE_ETH_XSTATS_NAME_SIZE];
 166 };
 167
 168 /* telemetry stats to be reported */
 169 const struct telstats_name telstats_strings[] = {
 170         {"empty_poll"},
 171         {"full_poll"},
 172         {"busy_percent"}
 173 };
 174
 175 /* core busyness in percentage */
 176 enum busy_rate {
 177         ZERO = 0,
 178         PARTIAL = 50,
 179         FULL = 100
 180 };
 181
 182 /* reference poll count to measure core busyness */
 183 #define DEFAULT_COUNT 10000
 184 /*
 185  * reference CYCLES to be used to
 186  * measure core busyness based on poll count
 187  */
 188 #define MIN_CYCLES  1500000ULL
 189 #define MAX_CYCLES 22000000ULL
 190
 191 /* (500ms) */
 192 #define TELEMETRY_INTERVALS_PER_SEC 2
 193
 194 static int parse_ptype; /**< Parse packet type using rx callback, and */
 195                         /**< disabled by default */
 196
 197 enum appmode {
 198         APP_MODE_DEFAULT = 0,
 199         APP_MODE_LEGACY,
 200         APP_MODE_EMPTY_POLL,
 201         APP_MODE_TELEMETRY,
 202         APP_MODE_INTERRUPT
 203 };
 204
 205 enum appmode app_mode;
 206
 207 enum freq_scale_hint_t
 208 {
 209         FREQ_LOWER    =      -1,
 210         FREQ_CURRENT  =       0,
 211         FREQ_HIGHER   =       1,
 212         FREQ_HIGHEST  =       2
 213 };
 214
 215 struct lcore_rx_queue {
 216         uint16_t port_id;
 217         uint8_t queue_id;
 218         enum freq_scale_hint_t freq_up_hint;
 219         uint32_t zero_rx_packet_count;
 220         uint32_t idle_hint;
 221 } __rte_cache_aligned;
 222
 223 #define MAX_RX_QUEUE_PER_LCORE 16
 224 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
 225 #define MAX_RX_QUEUE_PER_PORT 128
 226
 227 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
 228
 229
 230 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 231 static struct lcore_params lcore_params_array_default[] = {
 232         {0, 0, 2},
 233         {0, 1, 2},
 234         {0, 2, 2},
 235         {1, 0, 2},
 236         {1, 1, 2},
 237         {1, 2, 2},
 238         {2, 0, 2},
 239         {3, 0, 3},
 240         {3, 1, 3},
 241 };
 242
 243 struct lcore_params *lcore_params = lcore_params_array_default;
 244 uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
 245
 246 static struct rte_eth_conf port_conf = {
 247         .rxmode = {
 248                 .mq_mode        = ETH_MQ_RX_RSS,
 249                 .max_rx_pkt_len = RTE_ETHER_MAX_LEN,
 250                 .split_hdr_size = 0,
 251                 .offloads = DEV_RX_OFFLOAD_CHECKSUM,
 252         },
 253         .rx_adv_conf = {
 254                 .rss_conf = {
 255                         .rss_key = NULL,
 256                         .rss_hf = ETH_RSS_UDP,
 257                 },
 258         },
 259         .txmode = {
 260                 .mq_mode = ETH_MQ_TX_NONE,
 261         }
 262 };
 263
 264 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 265
 266
 267 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 268
 269 #ifdef RTE_ARCH_X86
 270 #include <rte_hash_crc.h>
 271 #define DEFAULT_HASH_FUNC       rte_hash_crc
 272 #else
 273 #include <rte_jhash.h>
 274 #define DEFAULT_HASH_FUNC       rte_jhash
 275 #endif
 276
 277 struct ipv4_5tuple {
 278         uint32_t ip_dst;
 279         uint32_t ip_src;
 280         uint16_t port_dst;
 281         uint16_t port_src;
 282         uint8_t  proto;
 283 } __rte_packed;
 284
 285 struct ipv6_5tuple {
 286         uint8_t  ip_dst[IPV6_ADDR_LEN];
 287         uint8_t  ip_src[IPV6_ADDR_LEN];
 288         uint16_t port_dst;
 289         uint16_t port_src;
 290         uint8_t  proto;
 291 } __rte_packed;
 292
 293 struct ipv4_l3fwd_route {
 294         struct ipv4_5tuple key;
 295         uint8_t if_out;
 296 };
 297
 298 struct ipv6_l3fwd_route {
 299         struct ipv6_5tuple key;
 300         uint8_t if_out;
 301 };
 302
 303 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 304         {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
 305         {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
 306         {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
 307         {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 308 };
 309
 310 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 311         {
 312                 {
 313                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 314                          0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
 315                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 316                          0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
 317                          1, 10, IPPROTO_UDP
 318                 }, 4
 319         },
 320 };
 321
 322 typedef struct rte_hash lookup_struct_t;
 323 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 324 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 325
 326 #define L3FWD_HASH_ENTRIES      1024
 327
 328 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 329 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 330 #endif
 331
 332 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 333 struct ipv4_l3fwd_route {
 334         uint32_t ip;
 335         uint8_t  depth;
 336         uint8_t  if_out;
 337 };
 338
 339 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 340         {RTE_IPV4(1,1,1,0), 24, 0},
 341         {RTE_IPV4(2,1,1,0), 24, 1},
 342         {RTE_IPV4(3,1,1,0), 24, 2},
 343         {RTE_IPV4(4,1,1,0), 24, 3},
 344         {RTE_IPV4(5,1,1,0), 24, 4},
 345         {RTE_IPV4(6,1,1,0), 24, 5},
 346         {RTE_IPV4(7,1,1,0), 24, 6},
 347         {RTE_IPV4(8,1,1,0), 24, 7},
 348 };
 349
 350 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 351
 352 typedef struct rte_lpm lookup_struct_t;
 353 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 354 #endif
 355
 356 struct lcore_conf {
 357         uint16_t n_rx_queue;
 358         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 359         uint16_t n_tx_port;
 360         uint16_t tx_port_id[RTE_MAX_ETHPORTS];
 361         uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
 362         struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 363         lookup_struct_t * ipv4_lookup_struct;
 364         lookup_struct_t * ipv6_lookup_struct;
 365 } __rte_cache_aligned;
 366
 367 struct lcore_stats {
 368         /* total sleep time in ms since last frequency scaling down */
 369         uint32_t sleep_time;
 370         /* number of long sleep recently */
 371         uint32_t nb_long_sleep;
 372         /* freq. scaling up trend */
 373         uint32_t trend;
 374         /* total packet processed recently */
 375         uint64_t nb_rx_processed;
 376         /* total iterations looped recently */
 377         uint64_t nb_iteration_looped;
 378         /*
 379          * Represents empty and non empty polls
 380          * of rte_eth_rx_burst();
 381          * ep_nep[0] holds non empty polls
 382          * i.e. 0 < nb_rx <= MAX_BURST
 383          * ep_nep[1] holds empty polls.
 384          * i.e. nb_rx == 0
 385          */
 386         uint64_t ep_nep[2];
 387         /*
 388          * Represents full and empty+partial
 389          * polls of rte_eth_rx_burst();
 390          * ep_nep[0] holds empty+partial polls.
 391          * i.e. 0 <= nb_rx < MAX_BURST
 392          * ep_nep[1] holds full polls
 393          * i.e. nb_rx == MAX_BURST
 394          */
 395         uint64_t fp_nfp[2];
 396         enum busy_rate br;
 397         rte_spinlock_t telemetry_lock;
 398 } __rte_cache_aligned;
 399
 400 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
 401 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
 402 static struct rte_timer power_timers[RTE_MAX_LCORE];
 403
 404 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
 405 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
 406                 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
 407
 408
 409 /*
 410  * These defaults are using the max frequency index (1), a medium index (9)
 411  * and a typical low frequency index (14). These can be adjusted to use
 412  * different indexes using the relevant command line parameters.
 413  */
 414 static uint8_t  freq_tlb[] = {14, 9, 1};
 415
 416 static int is_done(void)
 417 {
 418         return quit_signal;
 419 }
 420
 421 /* exit signal handler */
 422 static void
 423 signal_exit_now(int sigtype)
 424 {
 425
 426         if (sigtype == SIGINT)
 427                 quit_signal = true;
 428
 429 }
 430
 431 /*  Freqency scale down timer callback */
 432 static void
 433 power_timer_cb(__rte_unused struct rte_timer *tim,
 434                           __rte_unused void *arg)
 435 {
 436         uint64_t hz;
 437         float sleep_time_ratio;
 438         unsigned lcore_id = rte_lcore_id();
 439
 440         /* accumulate total execution time in us when callback is invoked */
 441         sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
 442                                         (float)SCALING_PERIOD;
 443         /**
 444          * check whether need to scale down frequency a step if it sleep a lot.
 445          */
 446         if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
 447                 if (rte_power_freq_down)
 448                         rte_power_freq_down(lcore_id);
 449         }
 450         else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
 451                 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
 452                 /**
 453                  * scale down a step if average packet per iteration less
 454                  * than expectation.
 455                  */
 456                 if (rte_power_freq_down)
 457                         rte_power_freq_down(lcore_id);
 458         }
 459
 460         /**
 461          * initialize another timer according to current frequency to ensure
 462          * timer interval is relatively fixed.
 463          */
 464         hz = rte_get_timer_hz();
 465         rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
 466                                 SINGLE, lcore_id, power_timer_cb, NULL);
 467
 468         stats[lcore_id].nb_rx_processed = 0;
 469         stats[lcore_id].nb_iteration_looped = 0;
 470
 471         stats[lcore_id].sleep_time = 0;
 472 }
 473
 474 /* Enqueue a single packet, and send burst if queue is filled */
 475 static inline int
 476 send_single_packet(struct rte_mbuf *m, uint16_t port)
 477 {
 478         uint32_t lcore_id;
 479         struct lcore_conf *qconf;
 480
 481         lcore_id = rte_lcore_id();
 482         qconf = &lcore_conf[lcore_id];
 483
 484         rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
 485                         qconf->tx_buffer[port], m);
 486
 487         return 0;
 488 }
 489
 490 #ifdef DO_RFC_1812_CHECKS
 491 static inline int
 492 is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len)
 493 {
 494         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 495         /*
 496          * 1. The packet length reported by the Link Layer must be large
 497          * enough to hold the minimum length legal IP datagram (20 bytes).
 498          */
 499         if (link_len < sizeof(struct rte_ipv4_hdr))
 500                 return -1;
 501
 502         /* 2. The IP checksum must be correct. */
 503         /* this is checked in H/W */
 504
 505         /*
 506          * 3. The IP version number must be 4. If the version number is not 4
 507          * then the packet may be another version of IP, such as IPng or
 508          * ST-II.
 509          */
 510         if (((pkt->version_ihl) >> 4) != 4)
 511                 return -3;
 512         /*
 513          * 4. The IP header length field must be large enough to hold the
 514          * minimum length legal IP datagram (20 bytes = 5 words).
 515          */
 516         if ((pkt->version_ihl & 0xf) < 5)
 517                 return -4;
 518
 519         /*
 520          * 5. The IP total length field must be large enough to hold the IP
 521          * datagram header, whose length is specified in the IP header length
 522          * field.
 523          */
 524         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
 525                 return -5;
 526
 527         return 0;
 528 }
 529 #endif
 530
 531 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 532 static void
 533 print_ipv4_key(struct ipv4_5tuple key)
 534 {
 535         printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
 536                 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
 537                                 key.port_dst, key.port_src, key.proto);
 538 }
 539 static void
 540 print_ipv6_key(struct ipv6_5tuple key)
 541 {
 542         printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
 543                 "port dst = %d, port src = %d, proto = %d\n",
 544                 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
 545                 key.port_dst, key.port_src, key.proto);
 546 }
 547
 548 static inline uint16_t
 549 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
 550                 lookup_struct_t * ipv4_l3fwd_lookup_struct)
 551 {
 552         struct ipv4_5tuple key;
 553         struct rte_tcp_hdr *tcp;
 554         struct rte_udp_hdr *udp;
 555         int ret = 0;
 556
 557         key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
 558         key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
 559         key.proto = ipv4_hdr->next_proto_id;
 560
 561         switch (ipv4_hdr->next_proto_id) {
 562         case IPPROTO_TCP:
 563                 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
 564                                         sizeof(struct rte_ipv4_hdr));
 565                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 566                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 567                 break;
 568
 569         case IPPROTO_UDP:
 570                 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
 571                                         sizeof(struct rte_ipv4_hdr));
 572                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 573                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 574                 break;
 575
 576         default:
 577                 key.port_dst = 0;
 578                 key.port_src = 0;
 579                 break;
 580         }
 581
 582         /* Find destination port */
 583         ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
 584         return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
 585 }
 586
 587 static inline uint16_t
 588 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
 589                         lookup_struct_t *ipv6_l3fwd_lookup_struct)
 590 {
 591         struct ipv6_5tuple key;
 592         struct rte_tcp_hdr *tcp;
 593         struct rte_udp_hdr *udp;
 594         int ret = 0;
 595
 596         memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
 597         memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
 598
 599         key.proto = ipv6_hdr->proto;
 600
 601         switch (ipv6_hdr->proto) {
 602         case IPPROTO_TCP:
 603                 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
 604                                         sizeof(struct rte_ipv6_hdr));
 605                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 606                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 607                 break;
 608
 609         case IPPROTO_UDP:
 610                 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
 611                                         sizeof(struct rte_ipv6_hdr));
 612                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 613                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 614                 break;
 615
 616         default:
 617                 key.port_dst = 0;
 618                 key.port_src = 0;
 619                 break;
 620         }
 621
 622         /* Find destination port */
 623         ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
 624         return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
 625 }
 626 #endif
 627
 628 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 629 static inline uint16_t
 630 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
 631                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 632 {
 633         uint32_t next_hop;
 634
 635         return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
 636                         rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
 637                         next_hop : portid);
 638 }
 639 #endif
 640
 641 static inline void
 642 parse_ptype_one(struct rte_mbuf *m)
 643 {
 644         struct rte_ether_hdr *eth_hdr;
 645         uint32_t packet_type = RTE_PTYPE_UNKNOWN;
 646         uint16_t ether_type;
 647
 648         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 649         ether_type = eth_hdr->ether_type;
 650         if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
 651                 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
 652         else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
 653                 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
 654
 655         m->packet_type = packet_type;
 656 }
 657
 658 static uint16_t
 659 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
 660                struct rte_mbuf *pkts[], uint16_t nb_pkts,
 661                uint16_t max_pkts __rte_unused,
 662                void *user_param __rte_unused)
 663 {
 664         unsigned int i;
 665
 666         for (i = 0; i < nb_pkts; ++i)
 667                 parse_ptype_one(pkts[i]);
 668
 669         return nb_pkts;
 670 }
 671
 672 static int
 673 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
 674 {
 675         printf("Port %d: softly parse packet type info\n", portid);
 676         if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
 677                 return 0;
 678
 679         printf("Failed to add rx callback: port=%d\n", portid);
 680         return -1;
 681 }
 682
 683 static inline void
 684 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
 685                                 struct lcore_conf *qconf)
 686 {
 687         struct rte_ether_hdr *eth_hdr;
 688         struct rte_ipv4_hdr *ipv4_hdr;
 689         void *d_addr_bytes;
 690         uint16_t dst_port;
 691
 692         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 693
 694         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
 695                 /* Handle IPv4 headers.*/
 696                 ipv4_hdr =
 697                         rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
 698                                                 sizeof(struct rte_ether_hdr));
 699
 700 #ifdef DO_RFC_1812_CHECKS
 701                 /* Check to make sure the packet is valid (RFC1812) */
 702                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
 703                         rte_pktmbuf_free(m);
 704                         return;
 705                 }
 706 #endif
 707
 708                 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
 709                                         qconf->ipv4_lookup_struct);
 710                 if (dst_port >= RTE_MAX_ETHPORTS ||
 711                                 (enabled_port_mask & 1 << dst_port) == 0)
 712                         dst_port = portid;
 713
 714                 /* 02:00:00:00:00:xx */
 715                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 716                 *((uint64_t *)d_addr_bytes) =
 717                         0x000000000002 + ((uint64_t)dst_port << 40);
 718
 719 #ifdef DO_RFC_1812_CHECKS
 720                 /* Update time to live and header checksum */
 721                 --(ipv4_hdr->time_to_live);
 722                 ++(ipv4_hdr->hdr_checksum);
 723 #endif
 724
 725                 /* src addr */
 726                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
 727                                 &eth_hdr->s_addr);
 728
 729                 send_single_packet(m, dst_port);
 730         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
 731                 /* Handle IPv6 headers.*/
 732 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 733                 struct rte_ipv6_hdr *ipv6_hdr;
 734
 735                 ipv6_hdr =
 736                         rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
 737                                                 sizeof(struct rte_ether_hdr));
 738
 739                 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
 740                                         qconf->ipv6_lookup_struct);
 741
 742                 if (dst_port >= RTE_MAX_ETHPORTS ||
 743                                 (enabled_port_mask & 1 << dst_port) == 0)
 744                         dst_port = portid;
 745
 746                 /* 02:00:00:00:00:xx */
 747                 d_addr_bytes = &eth_hdr->d_addr.addr_bytes[0];
 748                 *((uint64_t *)d_addr_bytes) =
 749                         0x000000000002 + ((uint64_t)dst_port << 40);
 750
 751                 /* src addr */
 752                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
 753                                 &eth_hdr->s_addr);
 754
 755                 send_single_packet(m, dst_port);
 756 #else
 757                 /* We don't currently handle IPv6 packets in LPM mode. */
 758                 rte_pktmbuf_free(m);
 759 #endif
 760         } else
 761                 rte_pktmbuf_free(m);
 762
 763 }
 764
 765 #define MINIMUM_SLEEP_TIME         1
 766 #define SUSPEND_THRESHOLD          300
 767
 768 static inline uint32_t
 769 power_idle_heuristic(uint32_t zero_rx_packet_count)
 770 {
 771         /* If zero count is less than 100,  sleep 1us */
 772         if (zero_rx_packet_count < SUSPEND_THRESHOLD)
 773                 return MINIMUM_SLEEP_TIME;
 774         /* If zero count is less than 1000, sleep 100 us which is the
 775                 minimum latency switching from C3/C6 to C0
 776         */
 777         else
 778                 return SUSPEND_THRESHOLD;
 779 }
 780
 781 static inline enum freq_scale_hint_t
 782 power_freq_scaleup_heuristic(unsigned lcore_id,
 783                              uint16_t port_id,
 784                              uint16_t queue_id)
 785 {
 786         uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
 787 /**
 788  * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
 789  * per iteration
 790  */
 791 #define FREQ_GEAR1_RX_PACKET_THRESHOLD             MAX_PKT_BURST
 792 #define FREQ_GEAR2_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*2)
 793 #define FREQ_GEAR3_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*3)
 794 #define FREQ_UP_TREND1_ACC   1
 795 #define FREQ_UP_TREND2_ACC   100
 796 #define FREQ_UP_THRESHOLD    10000
 797
 798         if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
 799                 stats[lcore_id].trend = 0;
 800                 return FREQ_HIGHEST;
 801         } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
 802                 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
 803         else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
 804                 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
 805
 806         if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
 807                 stats[lcore_id].trend = 0;
 808                 return FREQ_HIGHER;
 809         }
 810
 811         return FREQ_CURRENT;
 812 }
 813
 814 /**
 815  * force polling thread sleep until one-shot rx interrupt triggers
 816  * @param port_id
 817  *  Port id.
 818  * @param queue_id
 819  *  Rx queue id.
 820  * @return
 821  *  0 on success
 822  */
 823 static int
 824 sleep_until_rx_interrupt(int num, int lcore)
 825 {
 826         /*
 827          * we want to track when we are woken up by traffic so that we can go
 828          * back to sleep again without log spamming. Avoid cache line sharing
 829          * to prevent threads stepping on each others' toes.
 830          */
 831         static struct {
 832                 bool wakeup;
 833         } __rte_cache_aligned status[RTE_MAX_LCORE];
 834         struct rte_epoll_event event[num];
 835         int n, i;
 836         uint16_t port_id;
 837         uint8_t queue_id;
 838         void *data;
 839
 840         if (status[lcore].wakeup) {
 841                 RTE_LOG(INFO, L3FWD_POWER,
 842                                 "lcore %u sleeps until interrupt triggers\n",
 843                                 rte_lcore_id());
 844         }
 845
 846         n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
 847         for (i = 0; i < n; i++) {
 848                 data = event[i].epdata.data;
 849                 port_id = ((uintptr_t)data) >> CHAR_BIT;
 850                 queue_id = ((uintptr_t)data) &
 851                         RTE_LEN2MASK(CHAR_BIT, uint8_t);
 852                 RTE_LOG(INFO, L3FWD_POWER,
 853                         "lcore %u is waked up from rx interrupt on"
 854                         " port %d queue %d\n",
 855                         rte_lcore_id(), port_id, queue_id);
 856         }
 857         status[lcore].wakeup = n != 0;
 858
 859         return 0;
 860 }
 861
 862 static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
 863 {
 864         int i;
 865         struct lcore_rx_queue *rx_queue;
 866         uint8_t queue_id;
 867         uint16_t port_id;
 868
 869         for (i = 0; i < qconf->n_rx_queue; ++i) {
 870                 rx_queue = &(qconf->rx_queue_list[i]);
 871                 port_id = rx_queue->port_id;
 872                 queue_id = rx_queue->queue_id;
 873
 874                 rte_spinlock_lock(&(locks[port_id]));
 875                 if (on)
 876                         rte_eth_dev_rx_intr_enable(port_id, queue_id);
 877                 else
 878                         rte_eth_dev_rx_intr_disable(port_id, queue_id);
 879                 rte_spinlock_unlock(&(locks[port_id]));
 880         }
 881 }
 882
 883 static int event_register(struct lcore_conf *qconf)
 884 {
 885         struct lcore_rx_queue *rx_queue;
 886         uint8_t queueid;
 887         uint16_t portid;
 888         uint32_t data;
 889         int ret;
 890         int i;
 891
 892         for (i = 0; i < qconf->n_rx_queue; ++i) {
 893                 rx_queue = &(qconf->rx_queue_list[i]);
 894                 portid = rx_queue->port_id;
 895                 queueid = rx_queue->queue_id;
 896                 data = portid << CHAR_BIT | queueid;
 897
 898                 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
 899                                                 RTE_EPOLL_PER_THREAD,
 900                                                 RTE_INTR_EVENT_ADD,
 901                                                 (void *)((uintptr_t)data));
 902                 if (ret)
 903                         return ret;
 904         }
 905
 906         return 0;
 907 }
 908
 909 /* main processing loop */
 910 static int main_intr_loop(__rte_unused void *dummy)
 911 {
 912         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 913         unsigned int lcore_id;
 914         uint64_t prev_tsc, diff_tsc, cur_tsc;
 915         int i, j, nb_rx;
 916         uint8_t queueid;
 917         uint16_t portid;
 918         struct lcore_conf *qconf;
 919         struct lcore_rx_queue *rx_queue;
 920         uint32_t lcore_rx_idle_count = 0;
 921         uint32_t lcore_idle_hint = 0;
 922         int intr_en = 0;
 923
 924         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
 925                                    US_PER_S * BURST_TX_DRAIN_US;
 926
 927         prev_tsc = 0;
 928
 929         lcore_id = rte_lcore_id();
 930         qconf = &lcore_conf[lcore_id];
 931
 932         if (qconf->n_rx_queue == 0) {
 933                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
 934                                 lcore_id);
 935                 return 0;
 936         }
 937
 938         RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
 939                         lcore_id);
 940
 941         for (i = 0; i < qconf->n_rx_queue; i++) {
 942                 portid = qconf->rx_queue_list[i].port_id;
 943                 queueid = qconf->rx_queue_list[i].queue_id;
 944                 RTE_LOG(INFO, L3FWD_POWER,
 945                                 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
 946                                 lcore_id, portid, queueid);
 947         }
 948
 949         /* add into event wait list */
 950         if (event_register(qconf) == 0)
 951                 intr_en = 1;
 952         else
 953                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
 954
 955         while (!is_done()) {
 956                 stats[lcore_id].nb_iteration_looped++;
 957
 958                 cur_tsc = rte_rdtsc();
 959
 960                 /*
 961                  * TX burst queue drain
 962                  */
 963                 diff_tsc = cur_tsc - prev_tsc;
 964                 if (unlikely(diff_tsc > drain_tsc)) {
 965                         for (i = 0; i < qconf->n_tx_port; ++i) {
 966                                 portid = qconf->tx_port_id[i];
 967                                 rte_eth_tx_buffer_flush(portid,
 968                                                 qconf->tx_queue_id[portid],
 969                                                 qconf->tx_buffer[portid]);
 970                         }
 971                         prev_tsc = cur_tsc;
 972                 }
 973
 974 start_rx:
 975                 /*
 976                  * Read packet from RX queues
 977                  */
 978                 lcore_rx_idle_count = 0;
 979                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 980                         rx_queue = &(qconf->rx_queue_list[i]);
 981                         rx_queue->idle_hint = 0;
 982                         portid = rx_queue->port_id;
 983                         queueid = rx_queue->queue_id;
 984
 985                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
 986                                         MAX_PKT_BURST);
 987
 988                         stats[lcore_id].nb_rx_processed += nb_rx;
 989                         if (unlikely(nb_rx == 0)) {
 990                                 /**
 991                                  * no packet received from rx queue, try to
 992                                  * sleep for a while forcing CPU enter deeper
 993                                  * C states.
 994                                  */
 995                                 rx_queue->zero_rx_packet_count++;
 996
 997                                 if (rx_queue->zero_rx_packet_count <=
 998                                                 MIN_ZERO_POLL_COUNT)
 999                                         continue;
1000
1001                                 rx_queue->idle_hint = power_idle_heuristic(
1002                                                 rx_queue->zero_rx_packet_count);
1003                                 lcore_rx_idle_count++;
1004                         } else {
1005                                 rx_queue->zero_rx_packet_count = 0;
1006                         }
1007
1008                         /* Prefetch first packets */
1009                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1010                                 rte_prefetch0(rte_pktmbuf_mtod(
1011                                                 pkts_burst[j], void *));
1012                         }
1013
1014                         /* Prefetch and forward already prefetched packets */
1015                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1016                                 rte_prefetch0(rte_pktmbuf_mtod(
1017                                                 pkts_burst[j + PREFETCH_OFFSET],
1018                                                 void *));
1019                                 l3fwd_simple_forward(
1020                                                 pkts_burst[j], portid, qconf);
1021                         }
1022
1023                         /* Forward remaining prefetched packets */
1024                         for (; j < nb_rx; j++) {
1025                                 l3fwd_simple_forward(
1026                                                 pkts_burst[j], portid, qconf);
1027                         }
1028                 }
1029
1030                 if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
1031                         /**
1032                          * All Rx queues empty in recent consecutive polls,
1033                          * sleep in a conservative manner, meaning sleep as
1034                          * less as possible.
1035                          */
1036                         for (i = 1,
1037                             lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
1038                                         i < qconf->n_rx_queue; ++i) {
1039                                 rx_queue = &(qconf->rx_queue_list[i]);
1040                                 if (rx_queue->idle_hint < lcore_idle_hint)
1041                                         lcore_idle_hint = rx_queue->idle_hint;
1042                         }
1043
1044                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
1045                                 /**
1046                                  * execute "pause" instruction to avoid context
1047                                  * switch which generally take hundred of
1048                                  * microseconds for short sleep.
1049                                  */
1050                                 rte_delay_us(lcore_idle_hint);
1051                         else {
1052                                 /* suspend until rx interrupt triggers */
1053                                 if (intr_en) {
1054                                         turn_on_off_intr(qconf, 1);
1055                                         sleep_until_rx_interrupt(
1056                                                         qconf->n_rx_queue,
1057                                                         lcore_id);
1058                                         turn_on_off_intr(qconf, 0);
1059                                         /**
1060                                          * start receiving packets immediately
1061                                          */
1062                                         if (likely(!is_done()))
1063                                                 goto start_rx;
1064                                 }
1065                         }
1066                         stats[lcore_id].sleep_time += lcore_idle_hint;
1067                 }
1068         }
1069
1070         return 0;
1071 }
1072
1073 /* main processing loop */
1074 static int
1075 main_telemetry_loop(__rte_unused void *dummy)
1076 {
1077         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1078         unsigned int lcore_id;
1079         uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
1080         int i, j, nb_rx;
1081         uint8_t queueid;
1082         uint16_t portid;
1083         struct lcore_conf *qconf;
1084         struct lcore_rx_queue *rx_queue;
1085         uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
1086         uint64_t poll_count;
1087         enum busy_rate br;
1088
1089         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1090                                         US_PER_S * BURST_TX_DRAIN_US;
1091
1092         poll_count = 0;
1093         prev_tsc = 0;
1094         prev_tel_tsc = 0;
1095
1096         lcore_id = rte_lcore_id();
1097         qconf = &lcore_conf[lcore_id];
1098
1099         if (qconf->n_rx_queue == 0) {
1100                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1101                         lcore_id);
1102                 return 0;
1103         }
1104
1105         RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
1106                 lcore_id);
1107
1108         for (i = 0; i < qconf->n_rx_queue; i++) {
1109                 portid = qconf->rx_queue_list[i].port_id;
1110                 queueid = qconf->rx_queue_list[i].queue_id;
1111                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1112                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1113         }
1114
1115         while (!is_done()) {
1116
1117                 cur_tsc = rte_rdtsc();
1118                 /*
1119                  * TX burst queue drain
1120                  */
1121                 diff_tsc = cur_tsc - prev_tsc;
1122                 if (unlikely(diff_tsc > drain_tsc)) {
1123                         for (i = 0; i < qconf->n_tx_port; ++i) {
1124                                 portid = qconf->tx_port_id[i];
1125                                 rte_eth_tx_buffer_flush(portid,
1126                                                 qconf->tx_queue_id[portid],
1127                                                 qconf->tx_buffer[portid]);
1128                         }
1129                         prev_tsc = cur_tsc;
1130                 }
1131
1132                 /*
1133                  * Read packet from RX queues
1134                  */
1135                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1136                         rx_queue = &(qconf->rx_queue_list[i]);
1137                         portid = rx_queue->port_id;
1138                         queueid = rx_queue->queue_id;
1139
1140                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1141                                                                 MAX_PKT_BURST);
1142                         ep_nep[nb_rx == 0]++;
1143                         fp_nfp[nb_rx == MAX_PKT_BURST]++;
1144                         poll_count++;
1145                         if (unlikely(nb_rx == 0))
1146                                 continue;
1147
1148                         /* Prefetch first packets */
1149                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1150                                 rte_prefetch0(rte_pktmbuf_mtod(
1151                                                 pkts_burst[j], void *));
1152                         }
1153
1154                         /* Prefetch and forward already prefetched packets */
1155                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1156                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1157                                                 j + PREFETCH_OFFSET], void *));
1158                                 l3fwd_simple_forward(pkts_burst[j], portid,
1159                                                                 qconf);
1160                         }
1161
1162                         /* Forward remaining prefetched packets */
1163                         for (; j < nb_rx; j++) {
1164                                 l3fwd_simple_forward(pkts_burst[j], portid,
1165                                                                 qconf);
1166                         }
1167                 }
1168                 if (unlikely(poll_count >= DEFAULT_COUNT)) {
1169                         diff_tsc = cur_tsc - prev_tel_tsc;
1170                         if (diff_tsc >= MAX_CYCLES) {
1171                                 br = FULL;
1172                         } else if (diff_tsc > MIN_CYCLES &&
1173                                         diff_tsc < MAX_CYCLES) {
1174                                 br = (diff_tsc * 100) / MAX_CYCLES;
1175                         } else {
1176                                 br = ZERO;
1177                         }
1178                         poll_count = 0;
1179                         prev_tel_tsc = cur_tsc;
1180                         /* update stats for telemetry */
1181                         rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
1182                         stats[lcore_id].ep_nep[0] = ep_nep[0];
1183                         stats[lcore_id].ep_nep[1] = ep_nep[1];
1184                         stats[lcore_id].fp_nfp[0] = fp_nfp[0];
1185                         stats[lcore_id].fp_nfp[1] = fp_nfp[1];
1186                         stats[lcore_id].br = br;
1187                         rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
1188                 }
1189         }
1190
1191         return 0;
1192 }
1193 /* main processing loop */
1194 static int
1195 main_empty_poll_loop(__rte_unused void *dummy)
1196 {
1197         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1198         unsigned int lcore_id;
1199         uint64_t prev_tsc, diff_tsc, cur_tsc;
1200         int i, j, nb_rx;
1201         uint8_t queueid;
1202         uint16_t portid;
1203         struct lcore_conf *qconf;
1204         struct lcore_rx_queue *rx_queue;
1205
1206         const uint64_t drain_tsc =
1207                 (rte_get_tsc_hz() + US_PER_S - 1) /
1208                 US_PER_S * BURST_TX_DRAIN_US;
1209
1210         prev_tsc = 0;
1211
1212         lcore_id = rte_lcore_id();
1213         qconf = &lcore_conf[lcore_id];
1214
1215         if (qconf->n_rx_queue == 0) {
1216                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1217                         lcore_id);
1218                 return 0;
1219         }
1220
1221         for (i = 0; i < qconf->n_rx_queue; i++) {
1222                 portid = qconf->rx_queue_list[i].port_id;
1223                 queueid = qconf->rx_queue_list[i].queue_id;
1224                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1225                                 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1226         }
1227
1228         while (!is_done()) {
1229                 stats[lcore_id].nb_iteration_looped++;
1230
1231                 cur_tsc = rte_rdtsc();
1232                 /*
1233                  * TX burst queue drain
1234                  */
1235                 diff_tsc = cur_tsc - prev_tsc;
1236                 if (unlikely(diff_tsc > drain_tsc)) {
1237                         for (i = 0; i < qconf->n_tx_port; ++i) {
1238                                 portid = qconf->tx_port_id[i];
1239                                 rte_eth_tx_buffer_flush(portid,
1240                                                 qconf->tx_queue_id[portid],
1241                                                 qconf->tx_buffer[portid]);
1242                         }
1243                         prev_tsc = cur_tsc;
1244                 }
1245
1246                 /*
1247                  * Read packet from RX queues
1248                  */
1249                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1250                         rx_queue = &(qconf->rx_queue_list[i]);
1251                         rx_queue->idle_hint = 0;
1252                         portid = rx_queue->port_id;
1253                         queueid = rx_queue->queue_id;
1254
1255                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1256                                         MAX_PKT_BURST);
1257
1258                         stats[lcore_id].nb_rx_processed += nb_rx;
1259
1260                         if (nb_rx == 0) {
1261
1262                                 rte_power_empty_poll_stat_update(lcore_id);
1263
1264                                 continue;
1265                         } else {
1266                                 rte_power_poll_stat_update(lcore_id, nb_rx);
1267                         }
1268
1269
1270                         /* Prefetch first packets */
1271                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1272                                 rte_prefetch0(rte_pktmbuf_mtod(
1273                                                         pkts_burst[j], void *));
1274                         }
1275
1276                         /* Prefetch and forward already prefetched packets */
1277                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1278                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1279                                                         j + PREFETCH_OFFSET],
1280                                                         void *));
1281                                 l3fwd_simple_forward(pkts_burst[j], portid,
1282                                                 qconf);
1283                         }
1284
1285                         /* Forward remaining prefetched packets */
1286                         for (; j < nb_rx; j++) {
1287                                 l3fwd_simple_forward(pkts_burst[j], portid,
1288                                                 qconf);
1289                         }
1290
1291                 }
1292
1293         }
1294
1295         return 0;
1296 }
1297 /* main processing loop */
1298 static int
1299 main_legacy_loop(__rte_unused void *dummy)
1300 {
1301         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1302         unsigned lcore_id;
1303         uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
1304         uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
1305         int i, j, nb_rx;
1306         uint8_t queueid;
1307         uint16_t portid;
1308         struct lcore_conf *qconf;
1309         struct lcore_rx_queue *rx_queue;
1310         enum freq_scale_hint_t lcore_scaleup_hint;
1311         uint32_t lcore_rx_idle_count = 0;
1312         uint32_t lcore_idle_hint = 0;
1313         int intr_en = 0;
1314
1315         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
1316
1317         prev_tsc = 0;
1318         hz = rte_get_timer_hz();
1319         tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1320
1321         lcore_id = rte_lcore_id();
1322         qconf = &lcore_conf[lcore_id];
1323
1324         if (qconf->n_rx_queue == 0) {
1325                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1326                 return 0;
1327         }
1328
1329         RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1330
1331         for (i = 0; i < qconf->n_rx_queue; i++) {
1332                 portid = qconf->rx_queue_list[i].port_id;
1333                 queueid = qconf->rx_queue_list[i].queue_id;
1334                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1335                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1336         }
1337
1338         /* add into event wait list */
1339         if (event_register(qconf) == 0)
1340                 intr_en = 1;
1341         else
1342                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1343
1344         while (!is_done()) {
1345                 stats[lcore_id].nb_iteration_looped++;
1346
1347                 cur_tsc = rte_rdtsc();
1348                 cur_tsc_power = cur_tsc;
1349
1350                 /*
1351                  * TX burst queue drain
1352                  */
1353                 diff_tsc = cur_tsc - prev_tsc;
1354                 if (unlikely(diff_tsc > drain_tsc)) {
1355                         for (i = 0; i < qconf->n_tx_port; ++i) {
1356                                 portid = qconf->tx_port_id[i];
1357                                 rte_eth_tx_buffer_flush(portid,
1358                                                 qconf->tx_queue_id[portid],
1359                                                 qconf->tx_buffer[portid]);
1360                         }
1361                         prev_tsc = cur_tsc;
1362                 }
1363
1364                 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1365                 if (diff_tsc_power > tim_res_tsc) {
1366                         rte_timer_manage();
1367                         prev_tsc_power = cur_tsc_power;
1368                 }
1369
1370 start_rx:
1371                 /*
1372                  * Read packet from RX queues
1373                  */
1374                 lcore_scaleup_hint = FREQ_CURRENT;
1375                 lcore_rx_idle_count = 0;
1376                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1377                         rx_queue = &(qconf->rx_queue_list[i]);
1378                         rx_queue->idle_hint = 0;
1379                         portid = rx_queue->port_id;
1380                         queueid = rx_queue->queue_id;
1381
1382                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1383                                                                 MAX_PKT_BURST);
1384
1385                         stats[lcore_id].nb_rx_processed += nb_rx;
1386                         if (unlikely(nb_rx == 0)) {
1387                                 /**
1388                                  * no packet received from rx queue, try to
1389                                  * sleep for a while forcing CPU enter deeper
1390                                  * C states.
1391                                  */
1392                                 rx_queue->zero_rx_packet_count++;
1393
1394                                 if (rx_queue->zero_rx_packet_count <=
1395                                                         MIN_ZERO_POLL_COUNT)
1396                                         continue;
1397
1398                                 rx_queue->idle_hint = power_idle_heuristic(\
1399                                         rx_queue->zero_rx_packet_count);
1400                                 lcore_rx_idle_count++;
1401                         } else {
1402                                 rx_queue->zero_rx_packet_count = 0;
1403
1404                                 /**
1405                                  * do not scale up frequency immediately as
1406                                  * user to kernel space communication is costly
1407                                  * which might impact packet I/O for received
1408                                  * packets.
1409                                  */
1410                                 rx_queue->freq_up_hint =
1411                                         power_freq_scaleup_heuristic(lcore_id,
1412                                                         portid, queueid);
1413                         }
1414
1415                         /* Prefetch first packets */
1416                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1417                                 rte_prefetch0(rte_pktmbuf_mtod(
1418                                                 pkts_burst[j], void *));
1419                         }
1420
1421                         /* Prefetch and forward already prefetched packets */
1422                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1423                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1424                                                 j + PREFETCH_OFFSET], void *));
1425                                 l3fwd_simple_forward(pkts_burst[j], portid,
1426                                                                 qconf);
1427                         }
1428
1429                         /* Forward remaining prefetched packets */
1430                         for (; j < nb_rx; j++) {
1431                                 l3fwd_simple_forward(pkts_burst[j], portid,
1432                                                                 qconf);
1433                         }
1434                 }
1435
1436                 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1437                         for (i = 1, lcore_scaleup_hint =
1438                                 qconf->rx_queue_list[0].freq_up_hint;
1439                                         i < qconf->n_rx_queue; ++i) {
1440                                 rx_queue = &(qconf->rx_queue_list[i]);
1441                                 if (rx_queue->freq_up_hint >
1442                                                 lcore_scaleup_hint)
1443                                         lcore_scaleup_hint =
1444                                                 rx_queue->freq_up_hint;
1445                         }
1446
1447                         if (lcore_scaleup_hint == FREQ_HIGHEST) {
1448                                 if (rte_power_freq_max)
1449                                         rte_power_freq_max(lcore_id);
1450                         } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1451                                 if (rte_power_freq_up)
1452                                         rte_power_freq_up(lcore_id);
1453                         }
1454                 } else {
1455                         /**
1456                          * All Rx queues empty in recent consecutive polls,
1457                          * sleep in a conservative manner, meaning sleep as
1458                          * less as possible.
1459                          */
1460                         for (i = 1, lcore_idle_hint =
1461                                 qconf->rx_queue_list[0].idle_hint;
1462                                         i < qconf->n_rx_queue; ++i) {
1463                                 rx_queue = &(qconf->rx_queue_list[i]);
1464                                 if (rx_queue->idle_hint < lcore_idle_hint)
1465                                         lcore_idle_hint = rx_queue->idle_hint;
1466                         }
1467
1468                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
1469                                 /**
1470                                  * execute "pause" instruction to avoid context
1471                                  * switch which generally take hundred of
1472                                  * microseconds for short sleep.
1473                                  */
1474                                 rte_delay_us(lcore_idle_hint);
1475                         else {
1476                                 /* suspend until rx interrupt triggers */
1477                                 if (intr_en) {
1478                                         turn_on_off_intr(qconf, 1);
1479                                         sleep_until_rx_interrupt(
1480                                                         qconf->n_rx_queue,
1481                                                         lcore_id);
1482                                         turn_on_off_intr(qconf, 0);
1483                                         /**
1484                                          * start receiving packets immediately
1485                                          */
1486                                         if (likely(!is_done()))
1487                                                 goto start_rx;
1488                                 }
1489                         }
1490                         stats[lcore_id].sleep_time += lcore_idle_hint;
1491                 }
1492         }
1493
1494         return 0;
1495 }
1496
1497 static int
1498 check_lcore_params(void)
1499 {
1500         uint8_t queue, lcore;
1501         uint16_t i;
1502         int socketid;
1503
1504         for (i = 0; i < nb_lcore_params; ++i) {
1505                 queue = lcore_params[i].queue_id;
1506                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1507                         printf("invalid queue number: %hhu\n", queue);
1508                         return -1;
1509                 }
1510                 lcore = lcore_params[i].lcore_id;
1511                 if (!rte_lcore_is_enabled(lcore)) {
1512                         printf("error: lcore %hhu is not enabled in lcore "
1513                                                         "mask\n", lcore);
1514                         return -1;
1515                 }
1516                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1517                                                         (numa_on == 0)) {
1518                         printf("warning: lcore %hhu is on socket %d with numa "
1519                                                 "off\n", lcore, socketid);
1520                 }
1521                 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
1522                         printf("cannot enable main core %d in config for telemetry mode\n",
1523                                 rte_lcore_id());
1524                         return -1;
1525                 }
1526         }
1527         return 0;
1528 }
1529
1530 static int
1531 check_port_config(void)
1532 {
1533         unsigned portid;
1534         uint16_t i;
1535
1536         for (i = 0; i < nb_lcore_params; ++i) {
1537                 portid = lcore_params[i].port_id;
1538                 if ((enabled_port_mask & (1 << portid)) == 0) {
1539                         printf("port %u is not enabled in port mask\n",
1540                                                                 portid);
1541                         return -1;
1542                 }
1543                 if (!rte_eth_dev_is_valid_port(portid)) {
1544                         printf("port %u is not present on the board\n",
1545                                                                 portid);
1546                         return -1;
1547                 }
1548         }
1549         return 0;
1550 }
1551
1552 static uint8_t
1553 get_port_n_rx_queues(const uint16_t port)
1554 {
1555         int queue = -1;
1556         uint16_t i;
1557
1558         for (i = 0; i < nb_lcore_params; ++i) {
1559                 if (lcore_params[i].port_id == port &&
1560                                 lcore_params[i].queue_id > queue)
1561                         queue = lcore_params[i].queue_id;
1562         }
1563         return (uint8_t)(++queue);
1564 }
1565
1566 static int
1567 init_lcore_rx_queues(void)
1568 {
1569         uint16_t i, nb_rx_queue;
1570         uint8_t lcore;
1571
1572         for (i = 0; i < nb_lcore_params; ++i) {
1573                 lcore = lcore_params[i].lcore_id;
1574                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1575                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1576                         printf("error: too many queues (%u) for lcore: %u\n",
1577                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1578                         return -1;
1579                 } else {
1580                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1581                                 lcore_params[i].port_id;
1582                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1583                                 lcore_params[i].queue_id;
1584                         lcore_conf[lcore].n_rx_queue++;
1585                 }
1586         }
1587         return 0;
1588 }
1589
1590 /* display usage */
1591 static void
1592 print_usage(const char *prgname)
1593 {
1594         printf ("%s [EAL options] -- -p PORTMASK -P"
1595                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
1596                 "  [--high-perf-cores CORELIST"
1597                 "  [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1598                 "  [--enable-jumbo [--max-pkt-len PKTLEN]]\n"
1599                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1600                 "  -P : enable promiscuous mode\n"
1601                 "  --config (port,queue,lcore): rx queues configuration\n"
1602                 "  --high-perf-cores CORELIST: list of high performance cores\n"
1603                 "  --perf-config: similar as config, cores specified as indices"
1604                 " for bins containing high or regular performance cores\n"
1605                 "  --no-numa: optional, disable numa awareness\n"
1606                 "  --enable-jumbo: enable jumbo frame"
1607                 " which max packet len is PKTLEN in decimal (64-9600)\n"
1608                 "  --parse-ptype: parse packet type by software\n"
1609                 "  --legacy: use legacy interrupt-based scaling\n"
1610                 "  --empty-poll: enable empty poll detection"
1611                 " follow (training_flag, high_threshold, med_threshold)\n"
1612                 " --telemetry: enable telemetry mode, to update"
1613                 " empty polls, full polls, and core busyness to telemetry\n"
1614                 " --interrupt-only: enable interrupt-only mode\n",
1615                 prgname);
1616 }
1617
1618 static int parse_max_pkt_len(const char *pktlen)
1619 {
1620         char *end = NULL;
1621         unsigned long len;
1622
1623         /* parse decimal string */
1624         len = strtoul(pktlen, &end, 10);
1625         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1626                 return -1;
1627
1628         if (len == 0)
1629                 return -1;
1630
1631         return len;
1632 }
1633
1634 static int
1635 parse_portmask(const char *portmask)
1636 {
1637         char *end = NULL;
1638         unsigned long pm;
1639
1640         /* parse hexadecimal string */
1641         pm = strtoul(portmask, &end, 16);
1642         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1643                 return 0;
1644
1645         return pm;
1646 }
1647
1648 static int
1649 parse_config(const char *q_arg)
1650 {
1651         char s[256];
1652         const char *p, *p0 = q_arg;
1653         char *end;
1654         enum fieldnames {
1655                 FLD_PORT = 0,
1656                 FLD_QUEUE,
1657                 FLD_LCORE,
1658                 _NUM_FLD
1659         };
1660         unsigned long int_fld[_NUM_FLD];
1661         char *str_fld[_NUM_FLD];
1662         int i;
1663         unsigned size;
1664
1665         nb_lcore_params = 0;
1666
1667         while ((p = strchr(p0,'(')) != NULL) {
1668                 ++p;
1669                 if((p0 = strchr(p,')')) == NULL)
1670                         return -1;
1671
1672                 size = p0 - p;
1673                 if(size >= sizeof(s))
1674                         return -1;
1675
1676                 snprintf(s, sizeof(s), "%.*s", size, p);
1677                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1678                                                                 _NUM_FLD)
1679                         return -1;
1680                 for (i = 0; i < _NUM_FLD; i++){
1681                         errno = 0;
1682                         int_fld[i] = strtoul(str_fld[i], &end, 0);
1683                         if (errno != 0 || end == str_fld[i] || int_fld[i] >
1684                                                                         255)
1685                                 return -1;
1686                 }
1687                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1688                         printf("exceeded max number of lcore params: %hu\n",
1689                                 nb_lcore_params);
1690                         return -1;
1691                 }
1692                 lcore_params_array[nb_lcore_params].port_id =
1693                                 (uint8_t)int_fld[FLD_PORT];
1694                 lcore_params_array[nb_lcore_params].queue_id =
1695                                 (uint8_t)int_fld[FLD_QUEUE];
1696                 lcore_params_array[nb_lcore_params].lcore_id =
1697                                 (uint8_t)int_fld[FLD_LCORE];
1698                 ++nb_lcore_params;
1699         }
1700         lcore_params = lcore_params_array;
1701
1702         return 0;
1703 }
1704 static int
1705 parse_ep_config(const char *q_arg)
1706 {
1707         char s[256];
1708         const char *p = q_arg;
1709         char *end;
1710         int  num_arg;
1711
1712         char *str_fld[3];
1713
1714         int training_flag;
1715         int med_edpi;
1716         int hgh_edpi;
1717
1718         ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1719         ep_hgh_edpi = EMPTY_POLL_MED_THRESHOLD;
1720
1721         strlcpy(s, p, sizeof(s));
1722
1723         num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1724
1725         empty_poll_train = false;
1726
1727         if (num_arg == 0)
1728                 return 0;
1729
1730         if (num_arg == 3) {
1731
1732                 training_flag = strtoul(str_fld[0], &end, 0);
1733                 med_edpi = strtoul(str_fld[1], &end, 0);
1734                 hgh_edpi = strtoul(str_fld[2], &end, 0);
1735
1736                 if (training_flag == 1)
1737                         empty_poll_train = true;
1738
1739                 if (med_edpi > 0)
1740                         ep_med_edpi = med_edpi;
1741
1742                 if (med_edpi > 0)
1743                         ep_hgh_edpi = hgh_edpi;
1744
1745         } else {
1746
1747                 return -1;
1748         }
1749
1750         return 0;
1751
1752 }
1753 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1754 #define CMD_LINE_OPT_LEGACY "legacy"
1755 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
1756 #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
1757 #define CMD_LINE_OPT_TELEMETRY "telemetry"
1758
1759 /* Parse the argument given in the command line of the application */
1760 static int
1761 parse_args(int argc, char **argv)
1762 {
1763         int opt, ret;
1764         char **argvopt;
1765         int option_index;
1766         uint32_t limit;
1767         char *prgname = argv[0];
1768         static struct option lgopts[] = {
1769                 {"config", 1, 0, 0},
1770                 {"perf-config", 1, 0, 0},
1771                 {"high-perf-cores", 1, 0, 0},
1772                 {"no-numa", 0, 0, 0},
1773                 {"enable-jumbo", 0, 0, 0},
1774                 {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
1775                 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1776                 {CMD_LINE_OPT_LEGACY, 0, 0, 0},
1777                 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
1778                 {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
1779                 {NULL, 0, 0, 0}
1780         };
1781
1782         argvopt = argv;
1783
1784         while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1785                                 lgopts, &option_index)) != EOF) {
1786
1787                 switch (opt) {
1788                 /* portmask */
1789                 case 'p':
1790                         enabled_port_mask = parse_portmask(optarg);
1791                         if (enabled_port_mask == 0) {
1792                                 printf("invalid portmask\n");
1793                                 print_usage(prgname);
1794                                 return -1;
1795                         }
1796                         break;
1797                 case 'P':
1798                         printf("Promiscuous mode selected\n");
1799                         promiscuous_on = 1;
1800                         break;
1801                 case 'l':
1802                         limit = parse_max_pkt_len(optarg);
1803                         freq_tlb[LOW] = limit;
1804                         break;
1805                 case 'm':
1806                         limit = parse_max_pkt_len(optarg);
1807                         freq_tlb[MED] = limit;
1808                         break;
1809                 case 'h':
1810                         limit = parse_max_pkt_len(optarg);
1811                         freq_tlb[HGH] = limit;
1812                         break;
1813                 /* long options */
1814                 case 0:
1815                         if (!strncmp(lgopts[option_index].name, "config", 6)) {
1816                                 ret = parse_config(optarg);
1817                                 if (ret) {
1818                                         printf("invalid config\n");
1819                                         print_usage(prgname);
1820                                         return -1;
1821                                 }
1822                         }
1823
1824                         if (!strncmp(lgopts[option_index].name,
1825                                         "perf-config", 11)) {
1826                                 ret = parse_perf_config(optarg);
1827                                 if (ret) {
1828                                         printf("invalid perf-config\n");
1829                                         print_usage(prgname);
1830                                         return -1;
1831                                 }
1832                         }
1833
1834                         if (!strncmp(lgopts[option_index].name,
1835                                         "high-perf-cores", 15)) {
1836                                 ret = parse_perf_core_list(optarg);
1837                                 if (ret) {
1838                                         printf("invalid high-perf-cores\n");
1839                                         print_usage(prgname);
1840                                         return -1;
1841                                 }
1842                         }
1843
1844                         if (!strncmp(lgopts[option_index].name,
1845                                                 "no-numa", 7)) {
1846                                 printf("numa is disabled \n");
1847                                 numa_on = 0;
1848                         }
1849
1850                         if (!strncmp(lgopts[option_index].name,
1851                                         CMD_LINE_OPT_LEGACY,
1852                                         sizeof(CMD_LINE_OPT_LEGACY))) {
1853                                 if (app_mode != APP_MODE_DEFAULT) {
1854                                         printf(" legacy mode is mutually exclusive with other modes\n");
1855                                         return -1;
1856                                 }
1857                                 app_mode = APP_MODE_LEGACY;
1858                                 printf("legacy mode is enabled\n");
1859                         }
1860
1861                         if (!strncmp(lgopts[option_index].name,
1862                                         CMD_LINE_OPT_EMPTY_POLL, 10)) {
1863                                 if (app_mode != APP_MODE_DEFAULT) {
1864                                         printf(" empty-poll mode is mutually exclusive with other modes\n");
1865                                         return -1;
1866                                 }
1867                                 app_mode = APP_MODE_EMPTY_POLL;
1868                                 ret = parse_ep_config(optarg);
1869
1870                                 if (ret) {
1871                                         printf("invalid empty poll config\n");
1872                                         print_usage(prgname);
1873                                         return -1;
1874                                 }
1875                                 printf("empty-poll is enabled\n");
1876                         }
1877
1878                         if (!strncmp(lgopts[option_index].name,
1879                                         CMD_LINE_OPT_TELEMETRY,
1880                                         sizeof(CMD_LINE_OPT_TELEMETRY))) {
1881                                 if (app_mode != APP_MODE_DEFAULT) {
1882                                         printf(" telemetry mode is mutually exclusive with other modes\n");
1883                                         return -1;
1884                                 }
1885                                 app_mode = APP_MODE_TELEMETRY;
1886                                 printf("telemetry mode is enabled\n");
1887                         }
1888
1889                         if (!strncmp(lgopts[option_index].name,
1890                                         CMD_LINE_OPT_INTERRUPT_ONLY,
1891                                         sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
1892                                 if (app_mode != APP_MODE_DEFAULT) {
1893                                         printf(" interrupt-only mode is mutually exclusive with other modes\n");
1894                                         return -1;
1895                                 }
1896                                 app_mode = APP_MODE_INTERRUPT;
1897                                 printf("interrupt-only mode is enabled\n");
1898                         }
1899
1900                         if (!strncmp(lgopts[option_index].name,
1901                                         "enable-jumbo", 12)) {
1902                                 struct option lenopts =
1903                                         {"max-pkt-len", required_argument, \
1904                                                                         0, 0};
1905
1906                                 printf("jumbo frame is enabled \n");
1907                                 port_conf.rxmode.offloads |=
1908                                                 DEV_RX_OFFLOAD_JUMBO_FRAME;
1909                                 port_conf.txmode.offloads |=
1910                                                 DEV_TX_OFFLOAD_MULTI_SEGS;
1911
1912                                 /**
1913                                  * if no max-pkt-len set, use the default value
1914                                  * RTE_ETHER_MAX_LEN
1915                                  */
1916                                 if (0 == getopt_long(argc, argvopt, "",
1917                                                 &lenopts, &option_index)) {
1918                                         ret = parse_max_pkt_len(optarg);
1919                                         if ((ret < 64) ||
1920                                                 (ret > MAX_JUMBO_PKT_LEN)){
1921                                                 printf("invalid packet "
1922                                                                 "length\n");
1923                                                 print_usage(prgname);
1924                                                 return -1;
1925                                         }
1926                                         port_conf.rxmode.max_rx_pkt_len = ret;
1927                                 }
1928                                 printf("set jumbo frame "
1929                                         "max packet length to %u\n",
1930                                 (unsigned int)port_conf.rxmode.max_rx_pkt_len);
1931                         }
1932
1933                         if (!strncmp(lgopts[option_index].name,
1934                                      CMD_LINE_OPT_PARSE_PTYPE,
1935                                      sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
1936                                 printf("soft parse-ptype is enabled\n");
1937                                 parse_ptype = 1;
1938                         }
1939
1940                         break;
1941
1942                 default:
1943                         print_usage(prgname);
1944                         return -1;
1945                 }
1946         }
1947
1948         if (optind >= 0)
1949                 argv[optind-1] = prgname;
1950
1951         ret = optind-1;
1952         optind = 1; /* reset getopt lib */
1953         return ret;
1954 }
1955
1956 static void
1957 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
1958 {
1959         char buf[RTE_ETHER_ADDR_FMT_SIZE];
1960         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
1961         printf("%s%s", name, buf);
1962 }
1963
1964 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
1965 static void
1966 setup_hash(int socketid)
1967 {
1968         struct rte_hash_parameters ipv4_l3fwd_hash_params = {
1969                 .name = NULL,
1970                 .entries = L3FWD_HASH_ENTRIES,
1971                 .key_len = sizeof(struct ipv4_5tuple),
1972                 .hash_func = DEFAULT_HASH_FUNC,
1973                 .hash_func_init_val = 0,
1974         };
1975
1976         struct rte_hash_parameters ipv6_l3fwd_hash_params = {
1977                 .name = NULL,
1978                 .entries = L3FWD_HASH_ENTRIES,
1979                 .key_len = sizeof(struct ipv6_5tuple),
1980                 .hash_func = DEFAULT_HASH_FUNC,
1981                 .hash_func_init_val = 0,
1982         };
1983
1984         unsigned i;
1985         int ret;
1986         char s[64];
1987
1988         /* create ipv4 hash */
1989         snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
1990         ipv4_l3fwd_hash_params.name = s;
1991         ipv4_l3fwd_hash_params.socket_id = socketid;
1992         ipv4_l3fwd_lookup_struct[socketid] =
1993                 rte_hash_create(&ipv4_l3fwd_hash_params);
1994         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
1995                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
1996                                 "socket %d\n", socketid);
1997
1998         /* create ipv6 hash */
1999         snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
2000         ipv6_l3fwd_hash_params.name = s;
2001         ipv6_l3fwd_hash_params.socket_id = socketid;
2002         ipv6_l3fwd_lookup_struct[socketid] =
2003                 rte_hash_create(&ipv6_l3fwd_hash_params);
2004         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
2005                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2006                                 "socket %d\n", socketid);
2007
2008
2009         /* populate the ipv4 hash */
2010         for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2011                 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
2012                                 (void *) &ipv4_l3fwd_route_array[i].key);
2013                 if (ret < 0) {
2014                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2015                                 "l3fwd hash on socket %d\n", i, socketid);
2016                 }
2017                 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
2018                 printf("Hash: Adding key\n");
2019                 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
2020         }
2021
2022         /* populate the ipv6 hash */
2023         for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
2024                 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
2025                                 (void *) &ipv6_l3fwd_route_array[i].key);
2026                 if (ret < 0) {
2027                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2028                                 "l3fwd hash on socket %d\n", i, socketid);
2029                 }
2030                 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
2031                 printf("Hash: Adding key\n");
2032                 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
2033         }
2034 }
2035 #endif
2036
2037 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2038 static void
2039 setup_lpm(int socketid)
2040 {
2041         unsigned i;
2042         int ret;
2043         char s[64];
2044
2045         /* create the LPM table */
2046         struct rte_lpm_config lpm_ipv4_config;
2047
2048         lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
2049         lpm_ipv4_config.number_tbl8s = 256;
2050         lpm_ipv4_config.flags = 0;
2051
2052         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
2053         ipv4_l3fwd_lookup_struct[socketid] =
2054                         rte_lpm_create(s, socketid, &lpm_ipv4_config);
2055         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2056                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
2057                                 " on socket %d\n", socketid);
2058
2059         /* populate the LPM table */
2060         for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2061                 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
2062                         ipv4_l3fwd_route_array[i].ip,
2063                         ipv4_l3fwd_route_array[i].depth,
2064                         ipv4_l3fwd_route_array[i].if_out);
2065
2066                 if (ret < 0) {
2067                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
2068                                 "l3fwd LPM table on socket %d\n",
2069                                 i, socketid);
2070                 }
2071
2072                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
2073                         (unsigned)ipv4_l3fwd_route_array[i].ip,
2074                         ipv4_l3fwd_route_array[i].depth,
2075                         ipv4_l3fwd_route_array[i].if_out);
2076         }
2077 }
2078 #endif
2079
2080 static int
2081 init_mem(unsigned nb_mbuf)
2082 {
2083         struct lcore_conf *qconf;
2084         int socketid;
2085         unsigned lcore_id;
2086         char s[64];
2087
2088         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2089                 if (rte_lcore_is_enabled(lcore_id) == 0)
2090                         continue;
2091
2092                 if (numa_on)
2093                         socketid = rte_lcore_to_socket_id(lcore_id);
2094                 else
2095                         socketid = 0;
2096
2097                 if (socketid >= NB_SOCKETS) {
2098                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
2099                                         "out of range %d\n", socketid,
2100                                                 lcore_id, NB_SOCKETS);
2101                 }
2102                 if (pktmbuf_pool[socketid] == NULL) {
2103                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
2104                         pktmbuf_pool[socketid] =
2105                                 rte_pktmbuf_pool_create(s, nb_mbuf,
2106                                         MEMPOOL_CACHE_SIZE, 0,
2107                                         RTE_MBUF_DEFAULT_BUF_SIZE,
2108                                         socketid);
2109                         if (pktmbuf_pool[socketid] == NULL)
2110                                 rte_exit(EXIT_FAILURE,
2111                                         "Cannot init mbuf pool on socket %d\n",
2112                                                                 socketid);
2113                         else
2114                                 printf("Allocated mbuf pool on socket %d\n",
2115                                                                 socketid);
2116
2117 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2118                         setup_lpm(socketid);
2119 #else
2120                         setup_hash(socketid);
2121 #endif
2122                 }
2123                 qconf = &lcore_conf[lcore_id];
2124                 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
2125 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2126                 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
2127 #endif
2128         }
2129         return 0;
2130 }
2131
2132 /* Check the link status of all ports in up to 9s, and print them finally */
2133 static void
2134 check_all_ports_link_status(uint32_t port_mask)
2135 {
2136 #define CHECK_INTERVAL 100 /* 100ms */
2137 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
2138         uint8_t count, all_ports_up, print_flag = 0;
2139         uint16_t portid;
2140         struct rte_eth_link link;
2141         int ret;
2142         char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
2143
2144         printf("\nChecking link status");
2145         fflush(stdout);
2146         for (count = 0; count <= MAX_CHECK_TIME; count++) {
2147                 all_ports_up = 1;
2148                 RTE_ETH_FOREACH_DEV(portid) {
2149                         if ((port_mask & (1 << portid)) == 0)
2150                                 continue;
2151                         memset(&link, 0, sizeof(link));
2152                         ret = rte_eth_link_get_nowait(portid, &link);
2153                         if (ret < 0) {
2154                                 all_ports_up = 0;
2155                                 if (print_flag == 1)
2156                                         printf("Port %u link get failed: %s\n",
2157                                                 portid, rte_strerror(-ret));
2158                                 continue;
2159                         }
2160                         /* print link status if flag set */
2161                         if (print_flag == 1) {
2162                                 rte_eth_link_to_str(link_status_text,
2163                                         sizeof(link_status_text), &link);
2164                                 printf("Port %d %s\n", portid,
2165                                        link_status_text);
2166                                 continue;
2167                         }
2168                         /* clear all_ports_up flag if any link down */
2169                         if (link.link_status == ETH_LINK_DOWN) {
2170                                 all_ports_up = 0;
2171                                 break;
2172                         }
2173                 }
2174                 /* after finally printing all link status, get out */
2175                 if (print_flag == 1)
2176                         break;
2177
2178                 if (all_ports_up == 0) {
2179                         printf(".");
2180                         fflush(stdout);
2181                         rte_delay_ms(CHECK_INTERVAL);
2182                 }
2183
2184                 /* set the print_flag if all ports up or timeout */
2185                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
2186                         print_flag = 1;
2187                         printf("done\n");
2188                 }
2189         }
2190 }
2191
2192 static int check_ptype(uint16_t portid)
2193 {
2194         int i, ret;
2195         int ptype_l3_ipv4 = 0;
2196 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2197         int ptype_l3_ipv6 = 0;
2198 #endif
2199         uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
2200
2201         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
2202         if (ret <= 0)
2203                 return 0;
2204
2205         uint32_t ptypes[ret];
2206
2207         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
2208         for (i = 0; i < ret; ++i) {
2209                 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
2210                         ptype_l3_ipv4 = 1;
2211 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2212                 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
2213                         ptype_l3_ipv6 = 1;
2214 #endif
2215         }
2216
2217         if (ptype_l3_ipv4 == 0)
2218                 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
2219
2220 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2221         if (ptype_l3_ipv6 == 0)
2222                 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
2223 #endif
2224
2225 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2226         if (ptype_l3_ipv4)
2227 #else /* APP_LOOKUP_EXACT_MATCH */
2228         if (ptype_l3_ipv4 && ptype_l3_ipv6)
2229 #endif
2230                 return 1;
2231
2232         return 0;
2233
2234 }
2235
2236 static int
2237 init_power_library(void)
2238 {
2239         enum power_management_env env;
2240         unsigned int lcore_id;
2241         int ret = 0;
2242
2243         RTE_LCORE_FOREACH(lcore_id) {
2244                 /* init power management library */
2245                 ret = rte_power_init(lcore_id);
2246                 if (ret) {
2247                         RTE_LOG(ERR, POWER,
2248                                 "Library initialization failed on core %u\n",
2249                                 lcore_id);
2250                         return ret;
2251                 }
2252                 /* we're not supporting the VM channel mode */
2253                 env = rte_power_get_env();
2254                 if (env != PM_ENV_ACPI_CPUFREQ &&
2255                                 env != PM_ENV_PSTATE_CPUFREQ) {
2256                         RTE_LOG(ERR, POWER,
2257                                 "Only ACPI and PSTATE mode are supported\n");
2258                         return -1;
2259                 }
2260         }
2261         return ret;
2262 }
2263
2264 static int
2265 deinit_power_library(void)
2266 {
2267         unsigned int lcore_id;
2268         int ret = 0;
2269
2270         RTE_LCORE_FOREACH(lcore_id) {
2271                 /* deinit power management library */
2272                 ret = rte_power_exit(lcore_id);
2273                 if (ret) {
2274                         RTE_LOG(ERR, POWER,
2275                                 "Library deinitialization failed on core %u\n",
2276                                 lcore_id);
2277                         return ret;
2278                 }
2279         }
2280         return ret;
2281 }
2282
2283 static void
2284 get_current_stat_values(uint64_t *values)
2285 {
2286         unsigned int lcore_id = rte_lcore_id();
2287         struct lcore_conf *qconf;
2288         uint64_t app_eps = 0, app_fps = 0, app_br = 0;
2289         uint64_t count = 0;
2290
2291         RTE_LCORE_FOREACH_WORKER(lcore_id) {
2292                 qconf = &lcore_conf[lcore_id];
2293                 if (qconf->n_rx_queue == 0)
2294                         continue;
2295                 count++;
2296                 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
2297                 app_eps += stats[lcore_id].ep_nep[1];
2298                 app_fps += stats[lcore_id].fp_nfp[1];
2299                 app_br += stats[lcore_id].br;
2300                 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
2301         }
2302
2303         if (count > 0) {
2304                 values[0] = app_eps/count;
2305                 values[1] = app_fps/count;
2306                 values[2] = app_br/count;
2307         } else
2308                 memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
2309
2310 }
2311
2312 static void
2313 update_telemetry(__rte_unused struct rte_timer *tim,
2314                 __rte_unused void *arg)
2315 {
2316         int ret;
2317         uint64_t values[NUM_TELSTATS] = {0};
2318
2319         get_current_stat_values(values);
2320         ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
2321                                         values, RTE_DIM(values));
2322         if (ret < 0)
2323                 RTE_LOG(WARNING, POWER, "failed to update metrcis\n");
2324 }
2325
2326 static int
2327 handle_app_stats(const char *cmd __rte_unused,
2328                 const char *params __rte_unused,
2329                 struct rte_tel_data *d)
2330 {
2331         uint64_t values[NUM_TELSTATS] = {0};
2332         uint32_t i;
2333
2334         rte_tel_data_start_dict(d);
2335         get_current_stat_values(values);
2336         for (i = 0; i < NUM_TELSTATS; i++)
2337                 rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
2338                                 values[i]);
2339         return 0;
2340 }
2341
2342 static void
2343 telemetry_setup_timer(void)
2344 {
2345         int lcore_id = rte_lcore_id();
2346         uint64_t hz = rte_get_timer_hz();
2347         uint64_t ticks;
2348
2349         ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
2350         rte_timer_reset_sync(&telemetry_timer,
2351                         ticks,
2352                         PERIODICAL,
2353                         lcore_id,
2354                         update_telemetry,
2355                         NULL);
2356 }
2357 static void
2358 empty_poll_setup_timer(void)
2359 {
2360         int lcore_id = rte_lcore_id();
2361         uint64_t hz = rte_get_timer_hz();
2362
2363         struct  ep_params *ep_ptr = ep_params;
2364
2365         ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
2366
2367         rte_timer_reset_sync(&ep_ptr->timer0,
2368                         ep_ptr->interval_ticks,
2369                         PERIODICAL,
2370                         lcore_id,
2371                         rte_empty_poll_detection,
2372                         (void *)ep_ptr);
2373
2374 }
2375 static int
2376 launch_timer(unsigned int lcore_id)
2377 {
2378         int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
2379
2380         RTE_SET_USED(lcore_id);
2381
2382
2383         if (rte_get_main_lcore() != lcore_id) {
2384                 rte_panic("timer on lcore:%d which is not main core:%d\n",
2385                                 lcore_id,
2386                                 rte_get_main_lcore());
2387         }
2388
2389         RTE_LOG(INFO, POWER, "Bring up the Timer\n");
2390
2391         if (app_mode == APP_MODE_EMPTY_POLL)
2392                 empty_poll_setup_timer();
2393         else
2394                 telemetry_setup_timer();
2395
2396         cycles_10ms = rte_get_timer_hz() / 100;
2397
2398         while (!is_done()) {
2399                 cur_tsc = rte_rdtsc();
2400                 diff_tsc = cur_tsc - prev_tsc;
2401                 if (diff_tsc > cycles_10ms) {
2402                         rte_timer_manage();
2403                         prev_tsc = cur_tsc;
2404                         cycles_10ms = rte_get_timer_hz() / 100;
2405                 }
2406         }
2407
2408         RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
2409
2410         return 0;
2411 }
2412
2413 static int
2414 autodetect_mode(void)
2415 {
2416         RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
2417
2418         /*
2419          * Empty poll and telemetry modes have to be specifically requested to
2420          * be enabled, but we can auto-detect between interrupt mode with or
2421          * without frequency scaling. Both ACPI and pstate can be used.
2422          */
2423         if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
2424                 return APP_MODE_LEGACY;
2425         if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
2426                 return APP_MODE_LEGACY;
2427
2428         RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
2429
2430         return APP_MODE_INTERRUPT;
2431 }
2432
2433 static const char *
2434 mode_to_str(enum appmode mode)
2435 {
2436         switch (mode) {
2437         case APP_MODE_LEGACY:
2438                 return "legacy";
2439         case APP_MODE_EMPTY_POLL:
2440                 return "empty poll";
2441         case APP_MODE_TELEMETRY:
2442                 return "telemetry";
2443         case APP_MODE_INTERRUPT:
2444                 return "interrupt-only";
2445         default:
2446                 return "invalid";
2447         }
2448 }
2449
2450 int
2451 main(int argc, char **argv)
2452 {
2453         struct lcore_conf *qconf;
2454         struct rte_eth_dev_info dev_info;
2455         struct rte_eth_txconf *txconf;
2456         int ret;
2457         uint16_t nb_ports;
2458         uint16_t queueid;
2459         unsigned lcore_id;
2460         uint64_t hz;
2461         uint32_t n_tx_queue, nb_lcores;
2462         uint32_t dev_rxq_num, dev_txq_num;
2463         uint8_t nb_rx_queue, queue, socketid;
2464         uint16_t portid;
2465         const char *ptr_strings[NUM_TELSTATS];
2466
2467         /* catch SIGINT and restore cpufreq governor to ondemand */
2468         signal(SIGINT, signal_exit_now);
2469
2470         /* init EAL */
2471         ret = rte_eal_init(argc, argv);
2472         if (ret < 0)
2473                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
2474         argc -= ret;
2475         argv += ret;
2476
2477         /* init RTE timer library to be used late */
2478         rte_timer_subsystem_init();
2479
2480         /* parse application arguments (after the EAL ones) */
2481         ret = parse_args(argc, argv);
2482         if (ret < 0)
2483                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
2484
2485         if (app_mode == APP_MODE_DEFAULT)
2486                 app_mode = autodetect_mode();
2487
2488         RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
2489                         mode_to_str(app_mode));
2490
2491         /* only legacy and empty poll mode rely on power library */
2492         if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2493                         init_power_library())
2494                 rte_exit(EXIT_FAILURE, "init_power_library failed\n");
2495
2496         if (update_lcore_params() < 0)
2497                 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
2498
2499         if (check_lcore_params() < 0)
2500                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
2501
2502         ret = init_lcore_rx_queues();
2503         if (ret < 0)
2504                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
2505
2506         nb_ports = rte_eth_dev_count_avail();
2507
2508         if (check_port_config() < 0)
2509                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
2510
2511         nb_lcores = rte_lcore_count();
2512
2513         /* initialize all ports */
2514         RTE_ETH_FOREACH_DEV(portid) {
2515                 struct rte_eth_conf local_port_conf = port_conf;
2516                 /* not all app modes need interrupts */
2517                 bool need_intr = app_mode == APP_MODE_LEGACY ||
2518                                 app_mode == APP_MODE_INTERRUPT;
2519
2520                 /* skip ports that are not enabled */
2521                 if ((enabled_port_mask & (1 << portid)) == 0) {
2522                         printf("\nSkipping disabled port %d\n", portid);
2523                         continue;
2524                 }
2525
2526                 /* init port */
2527                 printf("Initializing port %d ... ", portid );
2528                 fflush(stdout);
2529
2530                 ret = rte_eth_dev_info_get(portid, &dev_info);
2531                 if (ret != 0)
2532                         rte_exit(EXIT_FAILURE,
2533                                 "Error during getting device (port %u) info: %s\n",
2534                                 portid, strerror(-ret));
2535
2536                 dev_rxq_num = dev_info.max_rx_queues;
2537                 dev_txq_num = dev_info.max_tx_queues;
2538
2539                 nb_rx_queue = get_port_n_rx_queues(portid);
2540                 if (nb_rx_queue > dev_rxq_num)
2541                         rte_exit(EXIT_FAILURE,
2542                                 "Cannot configure not existed rxq: "
2543                                 "port=%d\n", portid);
2544
2545                 n_tx_queue = nb_lcores;
2546                 if (n_tx_queue > dev_txq_num)
2547                         n_tx_queue = dev_txq_num;
2548                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2549                         nb_rx_queue, (unsigned)n_tx_queue );
2550                 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2551                 if (nb_rx_queue == 0)
2552                         need_intr = false;
2553
2554                 if (need_intr)
2555                         local_port_conf.intr_conf.rxq = 1;
2556
2557                 ret = rte_eth_dev_info_get(portid, &dev_info);
2558                 if (ret != 0)
2559                         rte_exit(EXIT_FAILURE,
2560                                 "Error during getting device (port %u) info: %s\n",
2561                                 portid, strerror(-ret));
2562
2563                 if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
2564                         local_port_conf.txmode.offloads |=
2565                                 DEV_TX_OFFLOAD_MBUF_FAST_FREE;
2566
2567                 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2568                         dev_info.flow_type_rss_offloads;
2569                 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2570                                 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2571                         printf("Port %u modified RSS hash function based on hardware support,"
2572                                 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2573                                 portid,
2574                                 port_conf.rx_adv_conf.rss_conf.rss_hf,
2575                                 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2576                 }
2577
2578                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2579                                         (uint16_t)n_tx_queue, &local_port_conf);
2580                 if (ret < 0)
2581                         rte_exit(EXIT_FAILURE, "Cannot configure device: "
2582                                         "err=%d, port=%d\n", ret, portid);
2583
2584                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2585                                                        &nb_txd);
2586                 if (ret < 0)
2587                         rte_exit(EXIT_FAILURE,
2588                                  "Cannot adjust number of descriptors: err=%d, port=%d\n",
2589                                  ret, portid);
2590
2591                 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2592                 if (ret < 0)
2593                         rte_exit(EXIT_FAILURE,
2594                                  "Cannot get MAC address: err=%d, port=%d\n",
2595                                  ret, portid);
2596
2597                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2598                 printf(", ");
2599
2600                 /* init memory */
2601                 ret = init_mem(NB_MBUF);
2602                 if (ret < 0)
2603                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
2604
2605                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2606                         if (rte_lcore_is_enabled(lcore_id) == 0)
2607                                 continue;
2608
2609                         /* Initialize TX buffers */
2610                         qconf = &lcore_conf[lcore_id];
2611                         qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2612                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2613                                 rte_eth_dev_socket_id(portid));
2614                         if (qconf->tx_buffer[portid] == NULL)
2615                                 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2616                                                  portid);
2617
2618                         rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2619                 }
2620
2621                 /* init one TX queue per couple (lcore,port) */
2622                 queueid = 0;
2623                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2624                         if (rte_lcore_is_enabled(lcore_id) == 0)
2625                                 continue;
2626
2627                         if (queueid >= dev_txq_num)
2628                                 continue;
2629
2630                         if (numa_on)
2631                                 socketid = \
2632                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2633                         else
2634                                 socketid = 0;
2635
2636                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2637                         fflush(stdout);
2638
2639                         txconf = &dev_info.default_txconf;
2640                         txconf->offloads = local_port_conf.txmode.offloads;
2641                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2642                                                      socketid, txconf);
2643                         if (ret < 0)
2644                                 rte_exit(EXIT_FAILURE,
2645                                         "rte_eth_tx_queue_setup: err=%d, "
2646                                                 "port=%d\n", ret, portid);
2647
2648                         qconf = &lcore_conf[lcore_id];
2649                         qconf->tx_queue_id[portid] = queueid;
2650                         queueid++;
2651
2652                         qconf->tx_port_id[qconf->n_tx_port] = portid;
2653                         qconf->n_tx_port++;
2654                 }
2655                 printf("\n");
2656         }
2657
2658         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2659                 if (rte_lcore_is_enabled(lcore_id) == 0)
2660                         continue;
2661
2662                 if (app_mode == APP_MODE_LEGACY) {
2663                         /* init timer structures for each enabled lcore */
2664                         rte_timer_init(&power_timers[lcore_id]);
2665                         hz = rte_get_timer_hz();
2666                         rte_timer_reset(&power_timers[lcore_id],
2667                                         hz/TIMER_NUMBER_PER_SECOND,
2668                                         SINGLE, lcore_id,
2669                                         power_timer_cb, NULL);
2670                 }
2671                 qconf = &lcore_conf[lcore_id];
2672                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2673                 fflush(stdout);
2674                 /* init RX queues */
2675                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2676                         struct rte_eth_rxconf rxq_conf;
2677
2678                         portid = qconf->rx_queue_list[queue].port_id;
2679                         queueid = qconf->rx_queue_list[queue].queue_id;
2680
2681                         if (numa_on)
2682                                 socketid = \
2683                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2684                         else
2685                                 socketid = 0;
2686
2687                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2688                         fflush(stdout);
2689
2690                         ret = rte_eth_dev_info_get(portid, &dev_info);
2691                         if (ret != 0)
2692                                 rte_exit(EXIT_FAILURE,
2693                                         "Error during getting device (port %u) info: %s\n",
2694                                         portid, strerror(-ret));
2695
2696                         rxq_conf = dev_info.default_rxconf;
2697                         rxq_conf.offloads = port_conf.rxmode.offloads;
2698                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2699                                 socketid, &rxq_conf,
2700                                 pktmbuf_pool[socketid]);
2701                         if (ret < 0)
2702                                 rte_exit(EXIT_FAILURE,
2703                                         "rte_eth_rx_queue_setup: err=%d, "
2704                                                 "port=%d\n", ret, portid);
2705
2706                         if (parse_ptype) {
2707                                 if (add_cb_parse_ptype(portid, queueid) < 0)
2708                                         rte_exit(EXIT_FAILURE,
2709                                                  "Fail to add ptype cb\n");
2710                         }
2711                 }
2712         }
2713
2714         printf("\n");
2715
2716         /* start ports */
2717         RTE_ETH_FOREACH_DEV(portid) {
2718                 if ((enabled_port_mask & (1 << portid)) == 0) {
2719                         continue;
2720                 }
2721                 /* Start device */
2722                 ret = rte_eth_dev_start(portid);
2723                 if (ret < 0)
2724                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2725                                                 "port=%d\n", ret, portid);
2726                 /*
2727                  * If enabled, put device in promiscuous mode.
2728                  * This allows IO forwarding mode to forward packets
2729                  * to itself through 2 cross-connected  ports of the
2730                  * target machine.
2731                  */
2732                 if (promiscuous_on) {
2733                         ret = rte_eth_promiscuous_enable(portid);
2734                         if (ret != 0)
2735                                 rte_exit(EXIT_FAILURE,
2736                                         "rte_eth_promiscuous_enable: err=%s, port=%u\n",
2737                                         rte_strerror(-ret), portid);
2738                 }
2739                 /* initialize spinlock for each port */
2740                 rte_spinlock_init(&(locks[portid]));
2741
2742                 if (!parse_ptype)
2743                         if (!check_ptype(portid))
2744                                 rte_exit(EXIT_FAILURE,
2745                                         "PMD can not provide needed ptypes\n");
2746         }
2747
2748         check_all_ports_link_status(enabled_port_mask);
2749
2750         if (app_mode == APP_MODE_EMPTY_POLL) {
2751
2752                 if (empty_poll_train) {
2753                         policy.state = TRAINING;
2754                 } else {
2755                         policy.state = MED_NORMAL;
2756                         policy.med_base_edpi = ep_med_edpi;
2757                         policy.hgh_base_edpi = ep_hgh_edpi;
2758                 }
2759
2760                 ret = rte_power_empty_poll_stat_init(&ep_params,
2761                                 freq_tlb,
2762                                 &policy);
2763                 if (ret < 0)
2764                         rte_exit(EXIT_FAILURE, "empty poll init failed");
2765         }
2766
2767
2768         /* launch per-lcore init on every lcore */
2769         if (app_mode == APP_MODE_LEGACY) {
2770                 rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN);
2771         } else if (app_mode == APP_MODE_EMPTY_POLL) {
2772                 empty_poll_stop = false;
2773                 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2774                                 SKIP_MAIN);
2775         } else if (app_mode == APP_MODE_TELEMETRY) {
2776                 unsigned int i;
2777
2778                 /* Init metrics library */
2779                 rte_metrics_init(rte_socket_id());
2780                 /** Register stats with metrics library */
2781                 for (i = 0; i < NUM_TELSTATS; i++)
2782                         ptr_strings[i] = telstats_strings[i].name;
2783
2784                 ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
2785                 if (ret >= 0)
2786                         telstats_index = ret;
2787                 else
2788                         rte_exit(EXIT_FAILURE, "failed to register metrics names");
2789
2790                 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2791                         rte_spinlock_init(&stats[lcore_id].telemetry_lock);
2792                 }
2793                 rte_timer_init(&telemetry_timer);
2794                 rte_telemetry_register_cmd("/l3fwd-power/stats",
2795                                 handle_app_stats,
2796                                 "Returns global power stats. Parameters: None");
2797                 rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
2798                                                 SKIP_MAIN);
2799         } else if (app_mode == APP_MODE_INTERRUPT) {
2800                 rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN);
2801         }
2802
2803         if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
2804                 launch_timer(rte_lcore_id());
2805
2806         RTE_LCORE_FOREACH_WORKER(lcore_id) {
2807                 if (rte_eal_wait_lcore(lcore_id) < 0)
2808                         return -1;
2809         }
2810
2811         RTE_ETH_FOREACH_DEV(portid)
2812         {
2813                 if ((enabled_port_mask & (1 << portid)) == 0)
2814                         continue;
2815
2816                 ret = rte_eth_dev_stop(portid);
2817                 if (ret != 0)
2818                         RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n",
2819                                 ret, portid);
2820
2821                 rte_eth_dev_close(portid);
2822         }
2823
2824         if (app_mode == APP_MODE_EMPTY_POLL)
2825                 rte_power_empty_poll_stat_free();
2826
2827         if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2828                         deinit_power_library())
2829                 rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
2830
2831         if (rte_eal_cleanup() < 0)
2832                 RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");
2833
2834         return 0;
2835 }