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_cycles.h>
  28 #include <rte_prefetch.h>
  29 #include <rte_lcore.h>
  30 #include <rte_per_lcore.h>
  31 #include <rte_branch_prediction.h>
  32 #include <rte_interrupts.h>
  33 #include <rte_random.h>
  34 #include <rte_debug.h>
  35 #include <rte_ether.h>
  36 #include <rte_ethdev.h>
  37 #include <rte_mempool.h>
  38 #include <rte_mbuf.h>
  39 #include <rte_ip.h>
  40 #include <rte_tcp.h>
  41 #include <rte_udp.h>
  42 #include <rte_string_fns.h>
  43 #include <rte_timer.h>
  44 #include <rte_power.h>
  45 #include <rte_spinlock.h>
  46 #include <rte_power_empty_poll.h>
  47 #include <rte_metrics.h>
  48 #include <rte_telemetry.h>
  49 #include <rte_power_pmd_mgmt.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         APP_MODE_PMD_MGMT
 204 };
 205
 206 enum appmode app_mode;
 207
 208 static enum rte_power_pmd_mgmt_type pmgmt_type;
 209 bool baseline_enabled;
 210
 211 enum freq_scale_hint_t
 212 {
 213         FREQ_LOWER    =      -1,
 214         FREQ_CURRENT  =       0,
 215         FREQ_HIGHER   =       1,
 216         FREQ_HIGHEST  =       2
 217 };
 218
 219 struct lcore_rx_queue {
 220         uint16_t port_id;
 221         uint8_t queue_id;
 222         enum freq_scale_hint_t freq_up_hint;
 223         uint32_t zero_rx_packet_count;
 224         uint32_t idle_hint;
 225 } __rte_cache_aligned;
 226
 227 #define MAX_RX_QUEUE_PER_LCORE 16
 228 #define MAX_TX_QUEUE_PER_PORT RTE_MAX_ETHPORTS
 229 #define MAX_RX_QUEUE_PER_PORT 128
 230
 231 #define MAX_RX_QUEUE_INTERRUPT_PER_PORT 16
 232
 233
 234 struct lcore_params lcore_params_array[MAX_LCORE_PARAMS];
 235 static struct lcore_params lcore_params_array_default[] = {
 236         {0, 0, 2},
 237         {0, 1, 2},
 238         {0, 2, 2},
 239         {1, 0, 2},
 240         {1, 1, 2},
 241         {1, 2, 2},
 242         {2, 0, 2},
 243         {3, 0, 3},
 244         {3, 1, 3},
 245 };
 246
 247 struct lcore_params *lcore_params = lcore_params_array_default;
 248 uint16_t nb_lcore_params = RTE_DIM(lcore_params_array_default);
 249
 250 static struct rte_eth_conf port_conf = {
 251         .rxmode = {
 252                 .mq_mode        = RTE_ETH_MQ_RX_RSS,
 253                 .split_hdr_size = 0,
 254                 .offloads = RTE_ETH_RX_OFFLOAD_CHECKSUM,
 255         },
 256         .rx_adv_conf = {
 257                 .rss_conf = {
 258                         .rss_key = NULL,
 259                         .rss_hf = RTE_ETH_RSS_UDP,
 260                 },
 261         },
 262         .txmode = {
 263                 .mq_mode = RTE_ETH_MQ_TX_NONE,
 264         }
 265 };
 266
 267 static uint32_t max_pkt_len;
 268 static uint32_t max_empty_polls = 512;
 269 static uint32_t pause_duration = 1;
 270 static uint32_t scale_freq_min;
 271 static uint32_t scale_freq_max;
 272
 273 static struct rte_mempool * pktmbuf_pool[NB_SOCKETS];
 274
 275
 276 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 277
 278 #ifdef RTE_ARCH_X86
 279 #include <rte_hash_crc.h>
 280 #define DEFAULT_HASH_FUNC       rte_hash_crc
 281 #else
 282 #include <rte_jhash.h>
 283 #define DEFAULT_HASH_FUNC       rte_jhash
 284 #endif
 285
 286 struct ipv4_5tuple {
 287         uint32_t ip_dst;
 288         uint32_t ip_src;
 289         uint16_t port_dst;
 290         uint16_t port_src;
 291         uint8_t  proto;
 292 } __rte_packed;
 293
 294 struct ipv6_5tuple {
 295         uint8_t  ip_dst[IPV6_ADDR_LEN];
 296         uint8_t  ip_src[IPV6_ADDR_LEN];
 297         uint16_t port_dst;
 298         uint16_t port_src;
 299         uint8_t  proto;
 300 } __rte_packed;
 301
 302 struct ipv4_l3fwd_route {
 303         struct ipv4_5tuple key;
 304         uint8_t if_out;
 305 };
 306
 307 struct ipv6_l3fwd_route {
 308         struct ipv6_5tuple key;
 309         uint8_t if_out;
 310 };
 311
 312 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 313         {{RTE_IPV4(100,10,0,1), RTE_IPV4(200,10,0,1), 101, 11, IPPROTO_TCP}, 0},
 314         {{RTE_IPV4(100,20,0,2), RTE_IPV4(200,20,0,2), 102, 12, IPPROTO_TCP}, 1},
 315         {{RTE_IPV4(100,30,0,3), RTE_IPV4(200,30,0,3), 103, 13, IPPROTO_TCP}, 2},
 316         {{RTE_IPV4(100,40,0,4), RTE_IPV4(200,40,0,4), 104, 14, IPPROTO_TCP}, 3},
 317 };
 318
 319 static struct ipv6_l3fwd_route ipv6_l3fwd_route_array[] = {
 320         {
 321                 {
 322                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 323                          0x02, 0x1b, 0x21, 0xff, 0xfe, 0x91, 0x38, 0x05},
 324                         {0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 325                          0x02, 0x1e, 0x67, 0xff, 0xfe, 0x0d, 0xb6, 0x0a},
 326                          1, 10, IPPROTO_UDP
 327                 }, 4
 328         },
 329 };
 330
 331 typedef struct rte_hash lookup_struct_t;
 332 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 333 static lookup_struct_t *ipv6_l3fwd_lookup_struct[NB_SOCKETS];
 334
 335 #define L3FWD_HASH_ENTRIES      1024
 336
 337 static uint16_t ipv4_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 338 static uint16_t ipv6_l3fwd_out_if[L3FWD_HASH_ENTRIES] __rte_cache_aligned;
 339 #endif
 340
 341 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 342 struct ipv4_l3fwd_route {
 343         uint32_t ip;
 344         uint8_t  depth;
 345         uint8_t  if_out;
 346 };
 347
 348 static struct ipv4_l3fwd_route ipv4_l3fwd_route_array[] = {
 349         {RTE_IPV4(1,1,1,0), 24, 0},
 350         {RTE_IPV4(2,1,1,0), 24, 1},
 351         {RTE_IPV4(3,1,1,0), 24, 2},
 352         {RTE_IPV4(4,1,1,0), 24, 3},
 353         {RTE_IPV4(5,1,1,0), 24, 4},
 354         {RTE_IPV4(6,1,1,0), 24, 5},
 355         {RTE_IPV4(7,1,1,0), 24, 6},
 356         {RTE_IPV4(8,1,1,0), 24, 7},
 357 };
 358
 359 #define IPV4_L3FWD_LPM_MAX_RULES     1024
 360
 361 typedef struct rte_lpm lookup_struct_t;
 362 static lookup_struct_t *ipv4_l3fwd_lookup_struct[NB_SOCKETS];
 363 #endif
 364
 365 struct lcore_conf {
 366         uint16_t n_rx_queue;
 367         struct lcore_rx_queue rx_queue_list[MAX_RX_QUEUE_PER_LCORE];
 368         uint16_t n_tx_port;
 369         uint16_t tx_port_id[RTE_MAX_ETHPORTS];
 370         uint16_t tx_queue_id[RTE_MAX_ETHPORTS];
 371         struct rte_eth_dev_tx_buffer *tx_buffer[RTE_MAX_ETHPORTS];
 372         lookup_struct_t * ipv4_lookup_struct;
 373         lookup_struct_t * ipv6_lookup_struct;
 374 } __rte_cache_aligned;
 375
 376 struct lcore_stats {
 377         /* total sleep time in ms since last frequency scaling down */
 378         uint32_t sleep_time;
 379         /* number of long sleep recently */
 380         uint32_t nb_long_sleep;
 381         /* freq. scaling up trend */
 382         uint32_t trend;
 383         /* total packet processed recently */
 384         uint64_t nb_rx_processed;
 385         /* total iterations looped recently */
 386         uint64_t nb_iteration_looped;
 387         /*
 388          * Represents empty and non empty polls
 389          * of rte_eth_rx_burst();
 390          * ep_nep[0] holds non empty polls
 391          * i.e. 0 < nb_rx <= MAX_BURST
 392          * ep_nep[1] holds empty polls.
 393          * i.e. nb_rx == 0
 394          */
 395         uint64_t ep_nep[2];
 396         /*
 397          * Represents full and empty+partial
 398          * polls of rte_eth_rx_burst();
 399          * ep_nep[0] holds empty+partial polls.
 400          * i.e. 0 <= nb_rx < MAX_BURST
 401          * ep_nep[1] holds full polls
 402          * i.e. nb_rx == MAX_BURST
 403          */
 404         uint64_t fp_nfp[2];
 405         enum busy_rate br;
 406         rte_spinlock_t telemetry_lock;
 407 } __rte_cache_aligned;
 408
 409 static struct lcore_conf lcore_conf[RTE_MAX_LCORE] __rte_cache_aligned;
 410 static struct lcore_stats stats[RTE_MAX_LCORE] __rte_cache_aligned;
 411 static struct rte_timer power_timers[RTE_MAX_LCORE];
 412
 413 static inline uint32_t power_idle_heuristic(uint32_t zero_rx_packet_count);
 414 static inline enum freq_scale_hint_t power_freq_scaleup_heuristic( \
 415                 unsigned int lcore_id, uint16_t port_id, uint16_t queue_id);
 416
 417
 418 /*
 419  * These defaults are using the max frequency index (1), a medium index (9)
 420  * and a typical low frequency index (14). These can be adjusted to use
 421  * different indexes using the relevant command line parameters.
 422  */
 423 static uint8_t  freq_tlb[] = {14, 9, 1};
 424
 425 static int is_done(void)
 426 {
 427         return quit_signal;
 428 }
 429
 430 /* exit signal handler */
 431 static void
 432 signal_exit_now(int sigtype)
 433 {
 434
 435         if (sigtype == SIGINT)
 436                 quit_signal = true;
 437
 438 }
 439
 440 /*  Frequency scale down timer callback */
 441 static void
 442 power_timer_cb(__rte_unused struct rte_timer *tim,
 443                           __rte_unused void *arg)
 444 {
 445         uint64_t hz;
 446         float sleep_time_ratio;
 447         unsigned lcore_id = rte_lcore_id();
 448
 449         /* accumulate total execution time in us when callback is invoked */
 450         sleep_time_ratio = (float)(stats[lcore_id].sleep_time) /
 451                                         (float)SCALING_PERIOD;
 452         /**
 453          * check whether need to scale down frequency a step if it sleep a lot.
 454          */
 455         if (sleep_time_ratio >= SCALING_DOWN_TIME_RATIO_THRESHOLD) {
 456                 if (rte_power_freq_down)
 457                         rte_power_freq_down(lcore_id);
 458         }
 459         else if ( (unsigned)(stats[lcore_id].nb_rx_processed /
 460                 stats[lcore_id].nb_iteration_looped) < MAX_PKT_BURST) {
 461                 /**
 462                  * scale down a step if average packet per iteration less
 463                  * than expectation.
 464                  */
 465                 if (rte_power_freq_down)
 466                         rte_power_freq_down(lcore_id);
 467         }
 468
 469         /**
 470          * initialize another timer according to current frequency to ensure
 471          * timer interval is relatively fixed.
 472          */
 473         hz = rte_get_timer_hz();
 474         rte_timer_reset(&power_timers[lcore_id], hz/TIMER_NUMBER_PER_SECOND,
 475                                 SINGLE, lcore_id, power_timer_cb, NULL);
 476
 477         stats[lcore_id].nb_rx_processed = 0;
 478         stats[lcore_id].nb_iteration_looped = 0;
 479
 480         stats[lcore_id].sleep_time = 0;
 481 }
 482
 483 /* Enqueue a single packet, and send burst if queue is filled */
 484 static inline int
 485 send_single_packet(struct rte_mbuf *m, uint16_t port)
 486 {
 487         uint32_t lcore_id;
 488         struct lcore_conf *qconf;
 489
 490         lcore_id = rte_lcore_id();
 491         qconf = &lcore_conf[lcore_id];
 492
 493         rte_eth_tx_buffer(port, qconf->tx_queue_id[port],
 494                         qconf->tx_buffer[port], m);
 495
 496         return 0;
 497 }
 498
 499 #ifdef DO_RFC_1812_CHECKS
 500 static inline int
 501 is_valid_ipv4_pkt(struct rte_ipv4_hdr *pkt, uint32_t link_len)
 502 {
 503         /* From http://www.rfc-editor.org/rfc/rfc1812.txt section 5.2.2 */
 504         /*
 505          * 1. The packet length reported by the Link Layer must be large
 506          * enough to hold the minimum length legal IP datagram (20 bytes).
 507          */
 508         if (link_len < sizeof(struct rte_ipv4_hdr))
 509                 return -1;
 510
 511         /* 2. The IP checksum must be correct. */
 512         /* if this is not checked in H/W, check it. */
 513         if ((port_conf.rxmode.offloads & RTE_ETH_RX_OFFLOAD_IPV4_CKSUM) == 0) {
 514                 uint16_t actual_cksum, expected_cksum;
 515                 actual_cksum = pkt->hdr_checksum;
 516                 pkt->hdr_checksum = 0;
 517                 expected_cksum = rte_ipv4_cksum(pkt);
 518                 if (actual_cksum != expected_cksum)
 519                         return -2;
 520         }
 521
 522         /*
 523          * 3. The IP version number must be 4. If the version number is not 4
 524          * then the packet may be another version of IP, such as IPng or
 525          * ST-II.
 526          */
 527         if (((pkt->version_ihl) >> 4) != 4)
 528                 return -3;
 529         /*
 530          * 4. The IP header length field must be large enough to hold the
 531          * minimum length legal IP datagram (20 bytes = 5 words).
 532          */
 533         if ((pkt->version_ihl & 0xf) < 5)
 534                 return -4;
 535
 536         /*
 537          * 5. The IP total length field must be large enough to hold the IP
 538          * datagram header, whose length is specified in the IP header length
 539          * field.
 540          */
 541         if (rte_cpu_to_be_16(pkt->total_length) < sizeof(struct rte_ipv4_hdr))
 542                 return -5;
 543
 544         return 0;
 545 }
 546 #endif
 547
 548 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 549 static void
 550 print_ipv4_key(struct ipv4_5tuple key)
 551 {
 552         printf("IP dst = %08x, IP src = %08x, port dst = %d, port src = %d, "
 553                 "proto = %d\n", (unsigned)key.ip_dst, (unsigned)key.ip_src,
 554                                 key.port_dst, key.port_src, key.proto);
 555 }
 556 static void
 557 print_ipv6_key(struct ipv6_5tuple key)
 558 {
 559         printf( "IP dst = " IPv6_BYTES_FMT ", IP src = " IPv6_BYTES_FMT ", "
 560                 "port dst = %d, port src = %d, proto = %d\n",
 561                 IPv6_BYTES(key.ip_dst), IPv6_BYTES(key.ip_src),
 562                 key.port_dst, key.port_src, key.proto);
 563 }
 564
 565 static inline uint16_t
 566 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
 567                 lookup_struct_t * ipv4_l3fwd_lookup_struct)
 568 {
 569         struct ipv4_5tuple key;
 570         struct rte_tcp_hdr *tcp;
 571         struct rte_udp_hdr *udp;
 572         int ret = 0;
 573
 574         key.ip_dst = rte_be_to_cpu_32(ipv4_hdr->dst_addr);
 575         key.ip_src = rte_be_to_cpu_32(ipv4_hdr->src_addr);
 576         key.proto = ipv4_hdr->next_proto_id;
 577
 578         switch (ipv4_hdr->next_proto_id) {
 579         case IPPROTO_TCP:
 580                 tcp = (struct rte_tcp_hdr *)((unsigned char *)ipv4_hdr +
 581                                         sizeof(struct rte_ipv4_hdr));
 582                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 583                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 584                 break;
 585
 586         case IPPROTO_UDP:
 587                 udp = (struct rte_udp_hdr *)((unsigned char *)ipv4_hdr +
 588                                         sizeof(struct rte_ipv4_hdr));
 589                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 590                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 591                 break;
 592
 593         default:
 594                 key.port_dst = 0;
 595                 key.port_src = 0;
 596                 break;
 597         }
 598
 599         /* Find destination port */
 600         ret = rte_hash_lookup(ipv4_l3fwd_lookup_struct, (const void *)&key);
 601         return ((ret < 0) ? portid : ipv4_l3fwd_out_if[ret]);
 602 }
 603
 604 static inline uint16_t
 605 get_ipv6_dst_port(struct rte_ipv6_hdr *ipv6_hdr, uint16_t portid,
 606                         lookup_struct_t *ipv6_l3fwd_lookup_struct)
 607 {
 608         struct ipv6_5tuple key;
 609         struct rte_tcp_hdr *tcp;
 610         struct rte_udp_hdr *udp;
 611         int ret = 0;
 612
 613         memcpy(key.ip_dst, ipv6_hdr->dst_addr, IPV6_ADDR_LEN);
 614         memcpy(key.ip_src, ipv6_hdr->src_addr, IPV6_ADDR_LEN);
 615
 616         key.proto = ipv6_hdr->proto;
 617
 618         switch (ipv6_hdr->proto) {
 619         case IPPROTO_TCP:
 620                 tcp = (struct rte_tcp_hdr *)((unsigned char *) ipv6_hdr +
 621                                         sizeof(struct rte_ipv6_hdr));
 622                 key.port_dst = rte_be_to_cpu_16(tcp->dst_port);
 623                 key.port_src = rte_be_to_cpu_16(tcp->src_port);
 624                 break;
 625
 626         case IPPROTO_UDP:
 627                 udp = (struct rte_udp_hdr *)((unsigned char *) ipv6_hdr +
 628                                         sizeof(struct rte_ipv6_hdr));
 629                 key.port_dst = rte_be_to_cpu_16(udp->dst_port);
 630                 key.port_src = rte_be_to_cpu_16(udp->src_port);
 631                 break;
 632
 633         default:
 634                 key.port_dst = 0;
 635                 key.port_src = 0;
 636                 break;
 637         }
 638
 639         /* Find destination port */
 640         ret = rte_hash_lookup(ipv6_l3fwd_lookup_struct, (const void *)&key);
 641         return ((ret < 0) ? portid : ipv6_l3fwd_out_if[ret]);
 642 }
 643 #endif
 644
 645 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
 646 static inline uint16_t
 647 get_ipv4_dst_port(struct rte_ipv4_hdr *ipv4_hdr, uint16_t portid,
 648                 lookup_struct_t *ipv4_l3fwd_lookup_struct)
 649 {
 650         uint32_t next_hop;
 651
 652         return ((rte_lpm_lookup(ipv4_l3fwd_lookup_struct,
 653                         rte_be_to_cpu_32(ipv4_hdr->dst_addr), &next_hop) == 0)?
 654                         next_hop : portid);
 655 }
 656 #endif
 657
 658 static inline void
 659 parse_ptype_one(struct rte_mbuf *m)
 660 {
 661         struct rte_ether_hdr *eth_hdr;
 662         uint32_t packet_type = RTE_PTYPE_UNKNOWN;
 663         uint16_t ether_type;
 664
 665         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 666         ether_type = eth_hdr->ether_type;
 667         if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV4))
 668                 packet_type |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
 669         else if (ether_type == rte_cpu_to_be_16(RTE_ETHER_TYPE_IPV6))
 670                 packet_type |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
 671
 672         m->packet_type = packet_type;
 673 }
 674
 675 static uint16_t
 676 cb_parse_ptype(uint16_t port __rte_unused, uint16_t queue __rte_unused,
 677                struct rte_mbuf *pkts[], uint16_t nb_pkts,
 678                uint16_t max_pkts __rte_unused,
 679                void *user_param __rte_unused)
 680 {
 681         unsigned int i;
 682
 683         for (i = 0; i < nb_pkts; ++i)
 684                 parse_ptype_one(pkts[i]);
 685
 686         return nb_pkts;
 687 }
 688
 689 static int
 690 add_cb_parse_ptype(uint16_t portid, uint16_t queueid)
 691 {
 692         printf("Port %d: softly parse packet type info\n", portid);
 693         if (rte_eth_add_rx_callback(portid, queueid, cb_parse_ptype, NULL))
 694                 return 0;
 695
 696         printf("Failed to add rx callback: port=%d\n", portid);
 697         return -1;
 698 }
 699
 700 static inline void
 701 l3fwd_simple_forward(struct rte_mbuf *m, uint16_t portid,
 702                                 struct lcore_conf *qconf)
 703 {
 704         struct rte_ether_hdr *eth_hdr;
 705         struct rte_ipv4_hdr *ipv4_hdr;
 706         void *d_addr_bytes;
 707         uint16_t dst_port;
 708
 709         eth_hdr = rte_pktmbuf_mtod(m, struct rte_ether_hdr *);
 710
 711         if (RTE_ETH_IS_IPV4_HDR(m->packet_type)) {
 712                 /* Handle IPv4 headers.*/
 713                 ipv4_hdr =
 714                         rte_pktmbuf_mtod_offset(m, struct rte_ipv4_hdr *,
 715                                                 sizeof(struct rte_ether_hdr));
 716
 717 #ifdef DO_RFC_1812_CHECKS
 718                 /* Check to make sure the packet is valid (RFC1812) */
 719                 if (is_valid_ipv4_pkt(ipv4_hdr, m->pkt_len) < 0) {
 720                         rte_pktmbuf_free(m);
 721                         return;
 722                 }
 723 #endif
 724
 725                 dst_port = get_ipv4_dst_port(ipv4_hdr, portid,
 726                                         qconf->ipv4_lookup_struct);
 727                 if (dst_port >= RTE_MAX_ETHPORTS ||
 728                                 (enabled_port_mask & 1 << dst_port) == 0)
 729                         dst_port = portid;
 730
 731                 /* 02:00:00:00:00:xx */
 732                 d_addr_bytes = &eth_hdr->dst_addr.addr_bytes[0];
 733                 *((uint64_t *)d_addr_bytes) =
 734                         0x000000000002 + ((uint64_t)dst_port << 40);
 735
 736 #ifdef DO_RFC_1812_CHECKS
 737                 /* Update time to live and header checksum */
 738                 --(ipv4_hdr->time_to_live);
 739                 ++(ipv4_hdr->hdr_checksum);
 740 #endif
 741
 742                 /* src addr */
 743                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
 744                                 &eth_hdr->src_addr);
 745
 746                 send_single_packet(m, dst_port);
 747         } else if (RTE_ETH_IS_IPV6_HDR(m->packet_type)) {
 748                 /* Handle IPv6 headers.*/
 749 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
 750                 struct rte_ipv6_hdr *ipv6_hdr;
 751
 752                 ipv6_hdr =
 753                         rte_pktmbuf_mtod_offset(m, struct rte_ipv6_hdr *,
 754                                                 sizeof(struct rte_ether_hdr));
 755
 756                 dst_port = get_ipv6_dst_port(ipv6_hdr, portid,
 757                                         qconf->ipv6_lookup_struct);
 758
 759                 if (dst_port >= RTE_MAX_ETHPORTS ||
 760                                 (enabled_port_mask & 1 << dst_port) == 0)
 761                         dst_port = portid;
 762
 763                 /* 02:00:00:00:00:xx */
 764                 d_addr_bytes = &eth_hdr->dst_addr.addr_bytes[0];
 765                 *((uint64_t *)d_addr_bytes) =
 766                         0x000000000002 + ((uint64_t)dst_port << 40);
 767
 768                 /* src addr */
 769                 rte_ether_addr_copy(&ports_eth_addr[dst_port],
 770                                 &eth_hdr->src_addr);
 771
 772                 send_single_packet(m, dst_port);
 773 #else
 774                 /* We don't currently handle IPv6 packets in LPM mode. */
 775                 rte_pktmbuf_free(m);
 776 #endif
 777         } else
 778                 rte_pktmbuf_free(m);
 779
 780 }
 781
 782 #define MINIMUM_SLEEP_TIME         1
 783 #define SUSPEND_THRESHOLD          300
 784
 785 static inline uint32_t
 786 power_idle_heuristic(uint32_t zero_rx_packet_count)
 787 {
 788         /* If zero count is less than 100,  sleep 1us */
 789         if (zero_rx_packet_count < SUSPEND_THRESHOLD)
 790                 return MINIMUM_SLEEP_TIME;
 791         /* If zero count is less than 1000, sleep 100 us which is the
 792                 minimum latency switching from C3/C6 to C0
 793         */
 794         else
 795                 return SUSPEND_THRESHOLD;
 796 }
 797
 798 static inline enum freq_scale_hint_t
 799 power_freq_scaleup_heuristic(unsigned lcore_id,
 800                              uint16_t port_id,
 801                              uint16_t queue_id)
 802 {
 803         uint32_t rxq_count = rte_eth_rx_queue_count(port_id, queue_id);
 804 /**
 805  * HW Rx queue size is 128 by default, Rx burst read at maximum 32 entries
 806  * per iteration
 807  */
 808 #define FREQ_GEAR1_RX_PACKET_THRESHOLD             MAX_PKT_BURST
 809 #define FREQ_GEAR2_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*2)
 810 #define FREQ_GEAR3_RX_PACKET_THRESHOLD             (MAX_PKT_BURST*3)
 811 #define FREQ_UP_TREND1_ACC   1
 812 #define FREQ_UP_TREND2_ACC   100
 813 #define FREQ_UP_THRESHOLD    10000
 814
 815         if (likely(rxq_count > FREQ_GEAR3_RX_PACKET_THRESHOLD)) {
 816                 stats[lcore_id].trend = 0;
 817                 return FREQ_HIGHEST;
 818         } else if (likely(rxq_count > FREQ_GEAR2_RX_PACKET_THRESHOLD))
 819                 stats[lcore_id].trend += FREQ_UP_TREND2_ACC;
 820         else if (likely(rxq_count > FREQ_GEAR1_RX_PACKET_THRESHOLD))
 821                 stats[lcore_id].trend += FREQ_UP_TREND1_ACC;
 822
 823         if (likely(stats[lcore_id].trend > FREQ_UP_THRESHOLD)) {
 824                 stats[lcore_id].trend = 0;
 825                 return FREQ_HIGHER;
 826         }
 827
 828         return FREQ_CURRENT;
 829 }
 830
 831 /**
 832  * force polling thread sleep until one-shot rx interrupt triggers
 833  * @param port_id
 834  *  Port id.
 835  * @param queue_id
 836  *  Rx queue id.
 837  * @return
 838  *  0 on success
 839  */
 840 static int
 841 sleep_until_rx_interrupt(int num, int lcore)
 842 {
 843         /*
 844          * we want to track when we are woken up by traffic so that we can go
 845          * back to sleep again without log spamming. Avoid cache line sharing
 846          * to prevent threads stepping on each others' toes.
 847          */
 848         static struct {
 849                 bool wakeup;
 850         } __rte_cache_aligned status[RTE_MAX_LCORE];
 851         struct rte_epoll_event event[num];
 852         int n, i;
 853         uint16_t port_id;
 854         uint8_t queue_id;
 855         void *data;
 856
 857         if (status[lcore].wakeup) {
 858                 RTE_LOG(INFO, L3FWD_POWER,
 859                                 "lcore %u sleeps until interrupt triggers\n",
 860                                 rte_lcore_id());
 861         }
 862
 863         n = rte_epoll_wait(RTE_EPOLL_PER_THREAD, event, num, 10);
 864         for (i = 0; i < n; i++) {
 865                 data = event[i].epdata.data;
 866                 port_id = ((uintptr_t)data) >> CHAR_BIT;
 867                 queue_id = ((uintptr_t)data) &
 868                         RTE_LEN2MASK(CHAR_BIT, uint8_t);
 869                 RTE_LOG(INFO, L3FWD_POWER,
 870                         "lcore %u is waked up from rx interrupt on"
 871                         " port %d queue %d\n",
 872                         rte_lcore_id(), port_id, queue_id);
 873         }
 874         status[lcore].wakeup = n != 0;
 875
 876         return 0;
 877 }
 878
 879 static void turn_on_off_intr(struct lcore_conf *qconf, bool on)
 880 {
 881         int i;
 882         struct lcore_rx_queue *rx_queue;
 883         uint8_t queue_id;
 884         uint16_t port_id;
 885
 886         for (i = 0; i < qconf->n_rx_queue; ++i) {
 887                 rx_queue = &(qconf->rx_queue_list[i]);
 888                 port_id = rx_queue->port_id;
 889                 queue_id = rx_queue->queue_id;
 890
 891                 rte_spinlock_lock(&(locks[port_id]));
 892                 if (on)
 893                         rte_eth_dev_rx_intr_enable(port_id, queue_id);
 894                 else
 895                         rte_eth_dev_rx_intr_disable(port_id, queue_id);
 896                 rte_spinlock_unlock(&(locks[port_id]));
 897         }
 898 }
 899
 900 static int event_register(struct lcore_conf *qconf)
 901 {
 902         struct lcore_rx_queue *rx_queue;
 903         uint8_t queueid;
 904         uint16_t portid;
 905         uint32_t data;
 906         int ret;
 907         int i;
 908
 909         for (i = 0; i < qconf->n_rx_queue; ++i) {
 910                 rx_queue = &(qconf->rx_queue_list[i]);
 911                 portid = rx_queue->port_id;
 912                 queueid = rx_queue->queue_id;
 913                 data = portid << CHAR_BIT | queueid;
 914
 915                 ret = rte_eth_dev_rx_intr_ctl_q(portid, queueid,
 916                                                 RTE_EPOLL_PER_THREAD,
 917                                                 RTE_INTR_EVENT_ADD,
 918                                                 (void *)((uintptr_t)data));
 919                 if (ret)
 920                         return ret;
 921         }
 922
 923         return 0;
 924 }
 925
 926 /* Main processing loop. 8< */
 927 static int main_intr_loop(__rte_unused void *dummy)
 928 {
 929         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
 930         unsigned int lcore_id;
 931         uint64_t prev_tsc, diff_tsc, cur_tsc;
 932         int i, j, nb_rx;
 933         uint8_t queueid;
 934         uint16_t portid;
 935         struct lcore_conf *qconf;
 936         struct lcore_rx_queue *rx_queue;
 937         uint32_t lcore_rx_idle_count = 0;
 938         uint32_t lcore_idle_hint = 0;
 939         int intr_en = 0;
 940
 941         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
 942                                    US_PER_S * BURST_TX_DRAIN_US;
 943
 944         prev_tsc = 0;
 945
 946         lcore_id = rte_lcore_id();
 947         qconf = &lcore_conf[lcore_id];
 948
 949         if (qconf->n_rx_queue == 0) {
 950                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
 951                                 lcore_id);
 952                 return 0;
 953         }
 954
 955         RTE_LOG(INFO, L3FWD_POWER, "entering main interrupt loop on lcore %u\n",
 956                         lcore_id);
 957
 958         for (i = 0; i < qconf->n_rx_queue; i++) {
 959                 portid = qconf->rx_queue_list[i].port_id;
 960                 queueid = qconf->rx_queue_list[i].queue_id;
 961                 RTE_LOG(INFO, L3FWD_POWER,
 962                                 " -- lcoreid=%u portid=%u rxqueueid=%hhu\n",
 963                                 lcore_id, portid, queueid);
 964         }
 965
 966         /* add into event wait list */
 967         if (event_register(qconf) == 0)
 968                 intr_en = 1;
 969         else
 970                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
 971
 972         while (!is_done()) {
 973                 stats[lcore_id].nb_iteration_looped++;
 974
 975                 cur_tsc = rte_rdtsc();
 976
 977                 /*
 978                  * TX burst queue drain
 979                  */
 980                 diff_tsc = cur_tsc - prev_tsc;
 981                 if (unlikely(diff_tsc > drain_tsc)) {
 982                         for (i = 0; i < qconf->n_tx_port; ++i) {
 983                                 portid = qconf->tx_port_id[i];
 984                                 rte_eth_tx_buffer_flush(portid,
 985                                                 qconf->tx_queue_id[portid],
 986                                                 qconf->tx_buffer[portid]);
 987                         }
 988                         prev_tsc = cur_tsc;
 989                 }
 990
 991 start_rx:
 992                 /*
 993                  * Read packet from RX queues
 994                  */
 995                 lcore_rx_idle_count = 0;
 996                 for (i = 0; i < qconf->n_rx_queue; ++i) {
 997                         rx_queue = &(qconf->rx_queue_list[i]);
 998                         rx_queue->idle_hint = 0;
 999                         portid = rx_queue->port_id;
1000                         queueid = rx_queue->queue_id;
1001
1002                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1003                                         MAX_PKT_BURST);
1004
1005                         stats[lcore_id].nb_rx_processed += nb_rx;
1006                         if (unlikely(nb_rx == 0)) {
1007                                 /**
1008                                  * no packet received from rx queue, try to
1009                                  * sleep for a while forcing CPU enter deeper
1010                                  * C states.
1011                                  */
1012                                 rx_queue->zero_rx_packet_count++;
1013
1014                                 if (rx_queue->zero_rx_packet_count <=
1015                                                 MIN_ZERO_POLL_COUNT)
1016                                         continue;
1017
1018                                 rx_queue->idle_hint = power_idle_heuristic(
1019                                                 rx_queue->zero_rx_packet_count);
1020                                 lcore_rx_idle_count++;
1021                         } else {
1022                                 rx_queue->zero_rx_packet_count = 0;
1023                         }
1024
1025                         /* Prefetch first packets */
1026                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1027                                 rte_prefetch0(rte_pktmbuf_mtod(
1028                                                 pkts_burst[j], void *));
1029                         }
1030
1031                         /* Prefetch and forward already prefetched packets */
1032                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1033                                 rte_prefetch0(rte_pktmbuf_mtod(
1034                                                 pkts_burst[j + PREFETCH_OFFSET],
1035                                                 void *));
1036                                 l3fwd_simple_forward(
1037                                                 pkts_burst[j], portid, qconf);
1038                         }
1039
1040                         /* Forward remaining prefetched packets */
1041                         for (; j < nb_rx; j++) {
1042                                 l3fwd_simple_forward(
1043                                                 pkts_burst[j], portid, qconf);
1044                         }
1045                 }
1046
1047                 if (unlikely(lcore_rx_idle_count == qconf->n_rx_queue)) {
1048                         /**
1049                          * All Rx queues empty in recent consecutive polls,
1050                          * sleep in a conservative manner, meaning sleep as
1051                          * less as possible.
1052                          */
1053                         for (i = 1,
1054                             lcore_idle_hint = qconf->rx_queue_list[0].idle_hint;
1055                                         i < qconf->n_rx_queue; ++i) {
1056                                 rx_queue = &(qconf->rx_queue_list[i]);
1057                                 if (rx_queue->idle_hint < lcore_idle_hint)
1058                                         lcore_idle_hint = rx_queue->idle_hint;
1059                         }
1060
1061                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
1062                                 /**
1063                                  * execute "pause" instruction to avoid context
1064                                  * switch which generally take hundred of
1065                                  * microseconds for short sleep.
1066                                  */
1067                                 rte_delay_us(lcore_idle_hint);
1068                         else {
1069                                 /* suspend until rx interrupt triggers */
1070                                 if (intr_en) {
1071                                         turn_on_off_intr(qconf, 1);
1072                                         sleep_until_rx_interrupt(
1073                                                         qconf->n_rx_queue,
1074                                                         lcore_id);
1075                                         turn_on_off_intr(qconf, 0);
1076                                         /**
1077                                          * start receiving packets immediately
1078                                          */
1079                                         if (likely(!is_done()))
1080                                                 goto start_rx;
1081                                 }
1082                         }
1083                         stats[lcore_id].sleep_time += lcore_idle_hint;
1084                 }
1085         }
1086
1087         return 0;
1088 }
1089 /* >8 End of main processing loop. */
1090
1091 /* main processing loop */
1092 static int
1093 main_telemetry_loop(__rte_unused void *dummy)
1094 {
1095         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1096         unsigned int lcore_id;
1097         uint64_t prev_tsc, diff_tsc, cur_tsc, prev_tel_tsc;
1098         int i, j, nb_rx;
1099         uint8_t queueid;
1100         uint16_t portid;
1101         struct lcore_conf *qconf;
1102         struct lcore_rx_queue *rx_queue;
1103         uint64_t ep_nep[2] = {0}, fp_nfp[2] = {0};
1104         uint64_t poll_count;
1105         enum busy_rate br;
1106
1107         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) /
1108                                         US_PER_S * BURST_TX_DRAIN_US;
1109
1110         poll_count = 0;
1111         prev_tsc = 0;
1112         prev_tel_tsc = 0;
1113
1114         lcore_id = rte_lcore_id();
1115         qconf = &lcore_conf[lcore_id];
1116
1117         if (qconf->n_rx_queue == 0) {
1118                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1119                         lcore_id);
1120                 return 0;
1121         }
1122
1123         RTE_LOG(INFO, L3FWD_POWER, "entering main telemetry loop on lcore %u\n",
1124                 lcore_id);
1125
1126         for (i = 0; i < qconf->n_rx_queue; i++) {
1127                 portid = qconf->rx_queue_list[i].port_id;
1128                 queueid = qconf->rx_queue_list[i].queue_id;
1129                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1130                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1131         }
1132
1133         while (!is_done()) {
1134
1135                 cur_tsc = rte_rdtsc();
1136                 /*
1137                  * TX burst queue drain
1138                  */
1139                 diff_tsc = cur_tsc - prev_tsc;
1140                 if (unlikely(diff_tsc > drain_tsc)) {
1141                         for (i = 0; i < qconf->n_tx_port; ++i) {
1142                                 portid = qconf->tx_port_id[i];
1143                                 rte_eth_tx_buffer_flush(portid,
1144                                                 qconf->tx_queue_id[portid],
1145                                                 qconf->tx_buffer[portid]);
1146                         }
1147                         prev_tsc = cur_tsc;
1148                 }
1149
1150                 /*
1151                  * Read packet from RX queues
1152                  */
1153                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1154                         rx_queue = &(qconf->rx_queue_list[i]);
1155                         portid = rx_queue->port_id;
1156                         queueid = rx_queue->queue_id;
1157
1158                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1159                                                                 MAX_PKT_BURST);
1160                         ep_nep[nb_rx == 0]++;
1161                         fp_nfp[nb_rx == MAX_PKT_BURST]++;
1162                         poll_count++;
1163                         if (unlikely(nb_rx == 0))
1164                                 continue;
1165
1166                         /* Prefetch first packets */
1167                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1168                                 rte_prefetch0(rte_pktmbuf_mtod(
1169                                                 pkts_burst[j], void *));
1170                         }
1171
1172                         /* Prefetch and forward already prefetched packets */
1173                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1174                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1175                                                 j + PREFETCH_OFFSET], void *));
1176                                 l3fwd_simple_forward(pkts_burst[j], portid,
1177                                                                 qconf);
1178                         }
1179
1180                         /* Forward remaining prefetched packets */
1181                         for (; j < nb_rx; j++) {
1182                                 l3fwd_simple_forward(pkts_burst[j], portid,
1183                                                                 qconf);
1184                         }
1185                 }
1186                 if (unlikely(poll_count >= DEFAULT_COUNT)) {
1187                         diff_tsc = cur_tsc - prev_tel_tsc;
1188                         if (diff_tsc >= MAX_CYCLES) {
1189                                 br = FULL;
1190                         } else if (diff_tsc > MIN_CYCLES &&
1191                                         diff_tsc < MAX_CYCLES) {
1192                                 br = (diff_tsc * 100) / MAX_CYCLES;
1193                         } else {
1194                                 br = ZERO;
1195                         }
1196                         poll_count = 0;
1197                         prev_tel_tsc = cur_tsc;
1198                         /* update stats for telemetry */
1199                         rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
1200                         stats[lcore_id].ep_nep[0] = ep_nep[0];
1201                         stats[lcore_id].ep_nep[1] = ep_nep[1];
1202                         stats[lcore_id].fp_nfp[0] = fp_nfp[0];
1203                         stats[lcore_id].fp_nfp[1] = fp_nfp[1];
1204                         stats[lcore_id].br = br;
1205                         rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
1206                 }
1207         }
1208
1209         return 0;
1210 }
1211 /* main processing loop */
1212 static int
1213 main_empty_poll_loop(__rte_unused void *dummy)
1214 {
1215         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1216         unsigned int lcore_id;
1217         uint64_t prev_tsc, diff_tsc, cur_tsc;
1218         int i, j, nb_rx;
1219         uint8_t queueid;
1220         uint16_t portid;
1221         struct lcore_conf *qconf;
1222         struct lcore_rx_queue *rx_queue;
1223
1224         const uint64_t drain_tsc =
1225                 (rte_get_tsc_hz() + US_PER_S - 1) /
1226                 US_PER_S * BURST_TX_DRAIN_US;
1227
1228         prev_tsc = 0;
1229
1230         lcore_id = rte_lcore_id();
1231         qconf = &lcore_conf[lcore_id];
1232
1233         if (qconf->n_rx_queue == 0) {
1234                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n",
1235                         lcore_id);
1236                 return 0;
1237         }
1238
1239         for (i = 0; i < qconf->n_rx_queue; i++) {
1240                 portid = qconf->rx_queue_list[i].port_id;
1241                 queueid = qconf->rx_queue_list[i].queue_id;
1242                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1243                                 "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1244         }
1245
1246         while (!is_done()) {
1247                 stats[lcore_id].nb_iteration_looped++;
1248
1249                 cur_tsc = rte_rdtsc();
1250                 /*
1251                  * TX burst queue drain
1252                  */
1253                 diff_tsc = cur_tsc - prev_tsc;
1254                 if (unlikely(diff_tsc > drain_tsc)) {
1255                         for (i = 0; i < qconf->n_tx_port; ++i) {
1256                                 portid = qconf->tx_port_id[i];
1257                                 rte_eth_tx_buffer_flush(portid,
1258                                                 qconf->tx_queue_id[portid],
1259                                                 qconf->tx_buffer[portid]);
1260                         }
1261                         prev_tsc = cur_tsc;
1262                 }
1263
1264                 /*
1265                  * Read packet from RX queues
1266                  */
1267                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1268                         rx_queue = &(qconf->rx_queue_list[i]);
1269                         rx_queue->idle_hint = 0;
1270                         portid = rx_queue->port_id;
1271                         queueid = rx_queue->queue_id;
1272
1273                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1274                                         MAX_PKT_BURST);
1275
1276                         stats[lcore_id].nb_rx_processed += nb_rx;
1277
1278                         if (nb_rx == 0) {
1279
1280                                 rte_power_empty_poll_stat_update(lcore_id);
1281
1282                                 continue;
1283                         } else {
1284                                 rte_power_poll_stat_update(lcore_id, nb_rx);
1285                         }
1286
1287
1288                         /* Prefetch first packets */
1289                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1290                                 rte_prefetch0(rte_pktmbuf_mtod(
1291                                                         pkts_burst[j], void *));
1292                         }
1293
1294                         /* Prefetch and forward already prefetched packets */
1295                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1296                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1297                                                         j + PREFETCH_OFFSET],
1298                                                         void *));
1299                                 l3fwd_simple_forward(pkts_burst[j], portid,
1300                                                 qconf);
1301                         }
1302
1303                         /* Forward remaining prefetched packets */
1304                         for (; j < nb_rx; j++) {
1305                                 l3fwd_simple_forward(pkts_burst[j], portid,
1306                                                 qconf);
1307                         }
1308
1309                 }
1310
1311         }
1312
1313         return 0;
1314 }
1315 /* main processing loop */
1316 static int
1317 main_legacy_loop(__rte_unused void *dummy)
1318 {
1319         struct rte_mbuf *pkts_burst[MAX_PKT_BURST];
1320         unsigned lcore_id;
1321         uint64_t prev_tsc, diff_tsc, cur_tsc, tim_res_tsc, hz;
1322         uint64_t prev_tsc_power = 0, cur_tsc_power, diff_tsc_power;
1323         int i, j, nb_rx;
1324         uint8_t queueid;
1325         uint16_t portid;
1326         struct lcore_conf *qconf;
1327         struct lcore_rx_queue *rx_queue;
1328         enum freq_scale_hint_t lcore_scaleup_hint;
1329         uint32_t lcore_rx_idle_count = 0;
1330         uint32_t lcore_idle_hint = 0;
1331         int intr_en = 0;
1332
1333         const uint64_t drain_tsc = (rte_get_tsc_hz() + US_PER_S - 1) / US_PER_S * BURST_TX_DRAIN_US;
1334
1335         prev_tsc = 0;
1336         hz = rte_get_timer_hz();
1337         tim_res_tsc = hz/TIMER_NUMBER_PER_SECOND;
1338
1339         lcore_id = rte_lcore_id();
1340         qconf = &lcore_conf[lcore_id];
1341
1342         if (qconf->n_rx_queue == 0) {
1343                 RTE_LOG(INFO, L3FWD_POWER, "lcore %u has nothing to do\n", lcore_id);
1344                 return 0;
1345         }
1346
1347         RTE_LOG(INFO, L3FWD_POWER, "entering main loop on lcore %u\n", lcore_id);
1348
1349         for (i = 0; i < qconf->n_rx_queue; i++) {
1350                 portid = qconf->rx_queue_list[i].port_id;
1351                 queueid = qconf->rx_queue_list[i].queue_id;
1352                 RTE_LOG(INFO, L3FWD_POWER, " -- lcoreid=%u portid=%u "
1353                         "rxqueueid=%hhu\n", lcore_id, portid, queueid);
1354         }
1355
1356         /* add into event wait list */
1357         if (event_register(qconf) == 0)
1358                 intr_en = 1;
1359         else
1360                 RTE_LOG(INFO, L3FWD_POWER, "RX interrupt won't enable.\n");
1361
1362         while (!is_done()) {
1363                 stats[lcore_id].nb_iteration_looped++;
1364
1365                 cur_tsc = rte_rdtsc();
1366                 cur_tsc_power = cur_tsc;
1367
1368                 /*
1369                  * TX burst queue drain
1370                  */
1371                 diff_tsc = cur_tsc - prev_tsc;
1372                 if (unlikely(diff_tsc > drain_tsc)) {
1373                         for (i = 0; i < qconf->n_tx_port; ++i) {
1374                                 portid = qconf->tx_port_id[i];
1375                                 rte_eth_tx_buffer_flush(portid,
1376                                                 qconf->tx_queue_id[portid],
1377                                                 qconf->tx_buffer[portid]);
1378                         }
1379                         prev_tsc = cur_tsc;
1380                 }
1381
1382                 diff_tsc_power = cur_tsc_power - prev_tsc_power;
1383                 if (diff_tsc_power > tim_res_tsc) {
1384                         rte_timer_manage();
1385                         prev_tsc_power = cur_tsc_power;
1386                 }
1387
1388 start_rx:
1389                 /*
1390                  * Read packet from RX queues
1391                  */
1392                 lcore_scaleup_hint = FREQ_CURRENT;
1393                 lcore_rx_idle_count = 0;
1394                 for (i = 0; i < qconf->n_rx_queue; ++i) {
1395                         rx_queue = &(qconf->rx_queue_list[i]);
1396                         rx_queue->idle_hint = 0;
1397                         portid = rx_queue->port_id;
1398                         queueid = rx_queue->queue_id;
1399
1400                         nb_rx = rte_eth_rx_burst(portid, queueid, pkts_burst,
1401                                                                 MAX_PKT_BURST);
1402
1403                         stats[lcore_id].nb_rx_processed += nb_rx;
1404                         if (unlikely(nb_rx == 0)) {
1405                                 /**
1406                                  * no packet received from rx queue, try to
1407                                  * sleep for a while forcing CPU enter deeper
1408                                  * C states.
1409                                  */
1410                                 rx_queue->zero_rx_packet_count++;
1411
1412                                 if (rx_queue->zero_rx_packet_count <=
1413                                                         MIN_ZERO_POLL_COUNT)
1414                                         continue;
1415
1416                                 rx_queue->idle_hint = power_idle_heuristic(\
1417                                         rx_queue->zero_rx_packet_count);
1418                                 lcore_rx_idle_count++;
1419                         } else {
1420                                 rx_queue->zero_rx_packet_count = 0;
1421
1422                                 /**
1423                                  * do not scale up frequency immediately as
1424                                  * user to kernel space communication is costly
1425                                  * which might impact packet I/O for received
1426                                  * packets.
1427                                  */
1428                                 rx_queue->freq_up_hint =
1429                                         power_freq_scaleup_heuristic(lcore_id,
1430                                                         portid, queueid);
1431                         }
1432
1433                         /* Prefetch first packets */
1434                         for (j = 0; j < PREFETCH_OFFSET && j < nb_rx; j++) {
1435                                 rte_prefetch0(rte_pktmbuf_mtod(
1436                                                 pkts_burst[j], void *));
1437                         }
1438
1439                         /* Prefetch and forward already prefetched packets */
1440                         for (j = 0; j < (nb_rx - PREFETCH_OFFSET); j++) {
1441                                 rte_prefetch0(rte_pktmbuf_mtod(pkts_burst[
1442                                                 j + PREFETCH_OFFSET], void *));
1443                                 l3fwd_simple_forward(pkts_burst[j], portid,
1444                                                                 qconf);
1445                         }
1446
1447                         /* Forward remaining prefetched packets */
1448                         for (; j < nb_rx; j++) {
1449                                 l3fwd_simple_forward(pkts_burst[j], portid,
1450                                                                 qconf);
1451                         }
1452                 }
1453
1454                 if (likely(lcore_rx_idle_count != qconf->n_rx_queue)) {
1455                         for (i = 1, lcore_scaleup_hint =
1456                                 qconf->rx_queue_list[0].freq_up_hint;
1457                                         i < qconf->n_rx_queue; ++i) {
1458                                 rx_queue = &(qconf->rx_queue_list[i]);
1459                                 if (rx_queue->freq_up_hint >
1460                                                 lcore_scaleup_hint)
1461                                         lcore_scaleup_hint =
1462                                                 rx_queue->freq_up_hint;
1463                         }
1464
1465                         if (lcore_scaleup_hint == FREQ_HIGHEST) {
1466                                 if (rte_power_freq_max)
1467                                         rte_power_freq_max(lcore_id);
1468                         } else if (lcore_scaleup_hint == FREQ_HIGHER) {
1469                                 if (rte_power_freq_up)
1470                                         rte_power_freq_up(lcore_id);
1471                         }
1472                 } else {
1473                         /**
1474                          * All Rx queues empty in recent consecutive polls,
1475                          * sleep in a conservative manner, meaning sleep as
1476                          * less as possible.
1477                          */
1478                         for (i = 1, lcore_idle_hint =
1479                                 qconf->rx_queue_list[0].idle_hint;
1480                                         i < qconf->n_rx_queue; ++i) {
1481                                 rx_queue = &(qconf->rx_queue_list[i]);
1482                                 if (rx_queue->idle_hint < lcore_idle_hint)
1483                                         lcore_idle_hint = rx_queue->idle_hint;
1484                         }
1485
1486                         if (lcore_idle_hint < SUSPEND_THRESHOLD)
1487                                 /**
1488                                  * execute "pause" instruction to avoid context
1489                                  * switch which generally take hundred of
1490                                  * microseconds for short sleep.
1491                                  */
1492                                 rte_delay_us(lcore_idle_hint);
1493                         else {
1494                                 /* suspend until rx interrupt triggers */
1495                                 if (intr_en) {
1496                                         turn_on_off_intr(qconf, 1);
1497                                         sleep_until_rx_interrupt(
1498                                                         qconf->n_rx_queue,
1499                                                         lcore_id);
1500                                         turn_on_off_intr(qconf, 0);
1501                                         /**
1502                                          * start receiving packets immediately
1503                                          */
1504                                         if (likely(!is_done()))
1505                                                 goto start_rx;
1506                                 }
1507                         }
1508                         stats[lcore_id].sleep_time += lcore_idle_hint;
1509                 }
1510         }
1511
1512         return 0;
1513 }
1514
1515 static int
1516 check_lcore_params(void)
1517 {
1518         uint8_t queue, lcore;
1519         uint16_t i;
1520         int socketid;
1521
1522         for (i = 0; i < nb_lcore_params; ++i) {
1523                 queue = lcore_params[i].queue_id;
1524                 if (queue >= MAX_RX_QUEUE_PER_PORT) {
1525                         printf("invalid queue number: %hhu\n", queue);
1526                         return -1;
1527                 }
1528                 lcore = lcore_params[i].lcore_id;
1529                 if (!rte_lcore_is_enabled(lcore)) {
1530                         printf("error: lcore %hhu is not enabled in lcore "
1531                                                         "mask\n", lcore);
1532                         return -1;
1533                 }
1534                 if ((socketid = rte_lcore_to_socket_id(lcore) != 0) &&
1535                                                         (numa_on == 0)) {
1536                         printf("warning: lcore %hhu is on socket %d with numa "
1537                                                 "off\n", lcore, socketid);
1538                 }
1539                 if (app_mode == APP_MODE_TELEMETRY && lcore == rte_lcore_id()) {
1540                         printf("cannot enable main core %d in config for telemetry mode\n",
1541                                 rte_lcore_id());
1542                         return -1;
1543                 }
1544         }
1545         return 0;
1546 }
1547
1548 static int
1549 check_port_config(void)
1550 {
1551         unsigned portid;
1552         uint16_t i;
1553
1554         for (i = 0; i < nb_lcore_params; ++i) {
1555                 portid = lcore_params[i].port_id;
1556                 if ((enabled_port_mask & (1 << portid)) == 0) {
1557                         printf("port %u is not enabled in port mask\n",
1558                                                                 portid);
1559                         return -1;
1560                 }
1561                 if (!rte_eth_dev_is_valid_port(portid)) {
1562                         printf("port %u is not present on the board\n",
1563                                                                 portid);
1564                         return -1;
1565                 }
1566         }
1567         return 0;
1568 }
1569
1570 static uint8_t
1571 get_port_n_rx_queues(const uint16_t port)
1572 {
1573         int queue = -1;
1574         uint16_t i;
1575
1576         for (i = 0; i < nb_lcore_params; ++i) {
1577                 if (lcore_params[i].port_id == port &&
1578                                 lcore_params[i].queue_id > queue)
1579                         queue = lcore_params[i].queue_id;
1580         }
1581         return (uint8_t)(++queue);
1582 }
1583
1584 static int
1585 init_lcore_rx_queues(void)
1586 {
1587         uint16_t i, nb_rx_queue;
1588         uint8_t lcore;
1589
1590         for (i = 0; i < nb_lcore_params; ++i) {
1591                 lcore = lcore_params[i].lcore_id;
1592                 nb_rx_queue = lcore_conf[lcore].n_rx_queue;
1593                 if (nb_rx_queue >= MAX_RX_QUEUE_PER_LCORE) {
1594                         printf("error: too many queues (%u) for lcore: %u\n",
1595                                 (unsigned)nb_rx_queue + 1, (unsigned)lcore);
1596                         return -1;
1597                 } else {
1598                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].port_id =
1599                                 lcore_params[i].port_id;
1600                         lcore_conf[lcore].rx_queue_list[nb_rx_queue].queue_id =
1601                                 lcore_params[i].queue_id;
1602                         lcore_conf[lcore].n_rx_queue++;
1603                 }
1604         }
1605         return 0;
1606 }
1607
1608 /* display usage */
1609 static void
1610 print_usage(const char *prgname)
1611 {
1612         printf ("%s [EAL options] -- -p PORTMASK -P"
1613                 "  [--config (port,queue,lcore)[,(port,queue,lcore]]"
1614                 "  [--high-perf-cores CORELIST"
1615                 "  [--perf-config (port,queue,hi_perf,lcore_index)[,(port,queue,hi_perf,lcore_index]]"
1616                 "  [--max-pkt-len PKTLEN]\n"
1617                 "  -p PORTMASK: hexadecimal bitmask of ports to configure\n"
1618                 "  -P: enable promiscuous mode\n"
1619                 "  --config (port,queue,lcore): rx queues configuration\n"
1620                 "  --high-perf-cores CORELIST: list of high performance cores\n"
1621                 "  --perf-config: similar as config, cores specified as indices"
1622                 " for bins containing high or regular performance cores\n"
1623                 "  --no-numa: optional, disable numa awareness\n"
1624                 "  --max-pkt-len PKTLEN: maximum packet length in decimal (64-9600)\n"
1625                 "  --parse-ptype: parse packet type by software\n"
1626                 "  --legacy: use legacy interrupt-based scaling\n"
1627                 "  --empty-poll: enable empty poll detection"
1628                 " follow (training_flag, high_threshold, med_threshold)\n"
1629                 " --telemetry: enable telemetry mode, to update"
1630                 " empty polls, full polls, and core busyness to telemetry\n"
1631                 " --interrupt-only: enable interrupt-only mode\n"
1632                 " --pmd-mgmt MODE: enable PMD power management mode. "
1633                 "Currently supported modes: baseline, monitor, pause, scale\n"
1634                 "  --max-empty-polls MAX_EMPTY_POLLS: number of empty polls to"
1635                 " wait before entering sleep state\n"
1636                 "  --pause-duration DURATION: set the duration, in microseconds,"
1637                 " of the pause callback\n"
1638                 "  --scale-freq-min FREQ_MIN: set minimum frequency for scaling mode for"
1639                 " all application lcores (FREQ_MIN must be in kHz, in increments of 100MHz)\n"
1640                 "  --scale-freq-max FREQ_MAX: set maximum frequency for scaling mode for"
1641                 " all application lcores (FREQ_MAX must be in kHz, in increments of 100MHz)\n",
1642                 prgname);
1643 }
1644
1645 static int
1646 parse_int(const char *opt)
1647 {
1648         char *end = NULL;
1649         unsigned long val;
1650
1651         /* parse integer string */
1652         val = strtoul(opt, &end, 10);
1653         if ((opt[0] == '\0') || (end == NULL) || (*end != '\0'))
1654                 return -1;
1655
1656         return val;
1657 }
1658
1659 static int parse_max_pkt_len(const char *pktlen)
1660 {
1661         char *end = NULL;
1662         unsigned long len;
1663
1664         /* parse decimal string */
1665         len = strtoul(pktlen, &end, 10);
1666         if ((pktlen[0] == '\0') || (end == NULL) || (*end != '\0'))
1667                 return -1;
1668
1669         if (len == 0)
1670                 return -1;
1671
1672         return len;
1673 }
1674
1675 static int
1676 parse_portmask(const char *portmask)
1677 {
1678         char *end = NULL;
1679         unsigned long pm;
1680
1681         /* parse hexadecimal string */
1682         pm = strtoul(portmask, &end, 16);
1683         if ((portmask[0] == '\0') || (end == NULL) || (*end != '\0'))
1684                 return 0;
1685
1686         return pm;
1687 }
1688
1689 static int
1690 parse_config(const char *q_arg)
1691 {
1692         char s[256];
1693         const char *p, *p0 = q_arg;
1694         char *end;
1695         enum fieldnames {
1696                 FLD_PORT = 0,
1697                 FLD_QUEUE,
1698                 FLD_LCORE,
1699                 _NUM_FLD
1700         };
1701         unsigned long int_fld[_NUM_FLD];
1702         char *str_fld[_NUM_FLD];
1703         int i;
1704         unsigned size;
1705
1706         nb_lcore_params = 0;
1707
1708         while ((p = strchr(p0,'(')) != NULL) {
1709                 ++p;
1710                 if((p0 = strchr(p,')')) == NULL)
1711                         return -1;
1712
1713                 size = p0 - p;
1714                 if(size >= sizeof(s))
1715                         return -1;
1716
1717                 snprintf(s, sizeof(s), "%.*s", size, p);
1718                 if (rte_strsplit(s, sizeof(s), str_fld, _NUM_FLD, ',') !=
1719                                                                 _NUM_FLD)
1720                         return -1;
1721                 for (i = 0; i < _NUM_FLD; i++){
1722                         errno = 0;
1723                         int_fld[i] = strtoul(str_fld[i], &end, 0);
1724                         if (errno != 0 || end == str_fld[i] || int_fld[i] >
1725                                                                         255)
1726                                 return -1;
1727                 }
1728                 if (nb_lcore_params >= MAX_LCORE_PARAMS) {
1729                         printf("exceeded max number of lcore params: %hu\n",
1730                                 nb_lcore_params);
1731                         return -1;
1732                 }
1733                 lcore_params_array[nb_lcore_params].port_id =
1734                                 (uint8_t)int_fld[FLD_PORT];
1735                 lcore_params_array[nb_lcore_params].queue_id =
1736                                 (uint8_t)int_fld[FLD_QUEUE];
1737                 lcore_params_array[nb_lcore_params].lcore_id =
1738                                 (uint8_t)int_fld[FLD_LCORE];
1739                 ++nb_lcore_params;
1740         }
1741         lcore_params = lcore_params_array;
1742
1743         return 0;
1744 }
1745
1746 static int
1747 parse_pmd_mgmt_config(const char *name)
1748 {
1749 #define PMD_MGMT_MONITOR "monitor"
1750 #define PMD_MGMT_PAUSE   "pause"
1751 #define PMD_MGMT_SCALE   "scale"
1752 #define PMD_MGMT_BASELINE  "baseline"
1753
1754         if (strncmp(PMD_MGMT_MONITOR, name, sizeof(PMD_MGMT_MONITOR)) == 0) {
1755                 pmgmt_type = RTE_POWER_MGMT_TYPE_MONITOR;
1756                 return 0;
1757         }
1758
1759         if (strncmp(PMD_MGMT_PAUSE, name, sizeof(PMD_MGMT_PAUSE)) == 0) {
1760                 pmgmt_type = RTE_POWER_MGMT_TYPE_PAUSE;
1761                 return 0;
1762         }
1763
1764         if (strncmp(PMD_MGMT_SCALE, name, sizeof(PMD_MGMT_SCALE)) == 0) {
1765                 pmgmt_type = RTE_POWER_MGMT_TYPE_SCALE;
1766                 return 0;
1767         }
1768         if (strncmp(PMD_MGMT_BASELINE, name, sizeof(PMD_MGMT_BASELINE)) == 0) {
1769                 baseline_enabled = true;
1770                 return 0;
1771         }
1772         /* unknown PMD power management mode */
1773         return -1;
1774 }
1775
1776 static int
1777 parse_ep_config(const char *q_arg)
1778 {
1779         char s[256];
1780         const char *p = q_arg;
1781         char *end;
1782         int  num_arg;
1783
1784         char *str_fld[3];
1785
1786         int training_flag;
1787         int med_edpi;
1788         int hgh_edpi;
1789
1790         ep_med_edpi = EMPTY_POLL_MED_THRESHOLD;
1791         ep_hgh_edpi = EMPTY_POLL_HGH_THRESHOLD;
1792
1793         strlcpy(s, p, sizeof(s));
1794
1795         num_arg = rte_strsplit(s, sizeof(s), str_fld, 3, ',');
1796
1797         empty_poll_train = false;
1798
1799         if (num_arg == 0)
1800                 return 0;
1801
1802         if (num_arg == 3) {
1803
1804                 training_flag = strtoul(str_fld[0], &end, 0);
1805                 med_edpi = strtoul(str_fld[1], &end, 0);
1806                 hgh_edpi = strtoul(str_fld[2], &end, 0);
1807
1808                 if (training_flag == 1)
1809                         empty_poll_train = true;
1810
1811                 if (med_edpi > 0)
1812                         ep_med_edpi = med_edpi;
1813
1814                 if (hgh_edpi > 0)
1815                         ep_hgh_edpi = hgh_edpi;
1816
1817         } else {
1818
1819                 return -1;
1820         }
1821
1822         return 0;
1823
1824 }
1825 #define CMD_LINE_OPT_PARSE_PTYPE "parse-ptype"
1826 #define CMD_LINE_OPT_LEGACY "legacy"
1827 #define CMD_LINE_OPT_EMPTY_POLL "empty-poll"
1828 #define CMD_LINE_OPT_INTERRUPT_ONLY "interrupt-only"
1829 #define CMD_LINE_OPT_TELEMETRY "telemetry"
1830 #define CMD_LINE_OPT_PMD_MGMT "pmd-mgmt"
1831 #define CMD_LINE_OPT_MAX_PKT_LEN "max-pkt-len"
1832 #define CMD_LINE_OPT_MAX_EMPTY_POLLS "max-empty-polls"
1833 #define CMD_LINE_OPT_PAUSE_DURATION "pause-duration"
1834 #define CMD_LINE_OPT_SCALE_FREQ_MIN "scale-freq-min"
1835 #define CMD_LINE_OPT_SCALE_FREQ_MAX "scale-freq-max"
1836
1837 /* Parse the argument given in the command line of the application */
1838 static int
1839 parse_args(int argc, char **argv)
1840 {
1841         int opt, ret;
1842         char **argvopt;
1843         int option_index;
1844         uint32_t limit;
1845         char *prgname = argv[0];
1846         static struct option lgopts[] = {
1847                 {"config", 1, 0, 0},
1848                 {"perf-config", 1, 0, 0},
1849                 {"high-perf-cores", 1, 0, 0},
1850                 {"no-numa", 0, 0, 0},
1851                 {CMD_LINE_OPT_MAX_PKT_LEN, 1, 0, 0},
1852                 {CMD_LINE_OPT_EMPTY_POLL, 1, 0, 0},
1853                 {CMD_LINE_OPT_PARSE_PTYPE, 0, 0, 0},
1854                 {CMD_LINE_OPT_LEGACY, 0, 0, 0},
1855                 {CMD_LINE_OPT_TELEMETRY, 0, 0, 0},
1856                 {CMD_LINE_OPT_INTERRUPT_ONLY, 0, 0, 0},
1857                 {CMD_LINE_OPT_PMD_MGMT, 1, 0, 0},
1858                 {CMD_LINE_OPT_MAX_EMPTY_POLLS, 1, 0, 0},
1859                 {CMD_LINE_OPT_PAUSE_DURATION, 1, 0, 0},
1860                 {CMD_LINE_OPT_SCALE_FREQ_MIN, 1, 0, 0},
1861                 {CMD_LINE_OPT_SCALE_FREQ_MAX, 1, 0, 0},
1862                 {NULL, 0, 0, 0}
1863         };
1864
1865         argvopt = argv;
1866
1867         while ((opt = getopt_long(argc, argvopt, "p:l:m:h:P",
1868                                 lgopts, &option_index)) != EOF) {
1869
1870                 switch (opt) {
1871                 /* portmask */
1872                 case 'p':
1873                         enabled_port_mask = parse_portmask(optarg);
1874                         if (enabled_port_mask == 0) {
1875                                 printf("invalid portmask\n");
1876                                 print_usage(prgname);
1877                                 return -1;
1878                         }
1879                         break;
1880                 case 'P':
1881                         printf("Promiscuous mode selected\n");
1882                         promiscuous_on = 1;
1883                         break;
1884                 case 'l':
1885                         limit = parse_max_pkt_len(optarg);
1886                         freq_tlb[LOW] = limit;
1887                         break;
1888                 case 'm':
1889                         limit = parse_max_pkt_len(optarg);
1890                         freq_tlb[MED] = limit;
1891                         break;
1892                 case 'h':
1893                         limit = parse_max_pkt_len(optarg);
1894                         freq_tlb[HGH] = limit;
1895                         break;
1896                 /* long options */
1897                 case 0:
1898                         if (!strncmp(lgopts[option_index].name, "config", 6)) {
1899                                 ret = parse_config(optarg);
1900                                 if (ret) {
1901                                         printf("invalid config\n");
1902                                         print_usage(prgname);
1903                                         return -1;
1904                                 }
1905                         }
1906
1907                         if (!strncmp(lgopts[option_index].name,
1908                                         "perf-config", 11)) {
1909                                 ret = parse_perf_config(optarg);
1910                                 if (ret) {
1911                                         printf("invalid perf-config\n");
1912                                         print_usage(prgname);
1913                                         return -1;
1914                                 }
1915                         }
1916
1917                         if (!strncmp(lgopts[option_index].name,
1918                                         "high-perf-cores", 15)) {
1919                                 ret = parse_perf_core_list(optarg);
1920                                 if (ret) {
1921                                         printf("invalid high-perf-cores\n");
1922                                         print_usage(prgname);
1923                                         return -1;
1924                                 }
1925                         }
1926
1927                         if (!strncmp(lgopts[option_index].name,
1928                                                 "no-numa", 7)) {
1929                                 printf("numa is disabled \n");
1930                                 numa_on = 0;
1931                         }
1932
1933                         if (!strncmp(lgopts[option_index].name,
1934                                         CMD_LINE_OPT_LEGACY,
1935                                         sizeof(CMD_LINE_OPT_LEGACY))) {
1936                                 if (app_mode != APP_MODE_DEFAULT) {
1937                                         printf(" legacy mode is mutually exclusive with other modes\n");
1938                                         return -1;
1939                                 }
1940                                 app_mode = APP_MODE_LEGACY;
1941                                 printf("legacy mode is enabled\n");
1942                         }
1943
1944                         if (!strncmp(lgopts[option_index].name,
1945                                         CMD_LINE_OPT_EMPTY_POLL, 10)) {
1946                                 if (app_mode != APP_MODE_DEFAULT) {
1947                                         printf(" empty-poll mode is mutually exclusive with other modes\n");
1948                                         return -1;
1949                                 }
1950                                 app_mode = APP_MODE_EMPTY_POLL;
1951                                 ret = parse_ep_config(optarg);
1952
1953                                 if (ret) {
1954                                         printf("invalid empty poll config\n");
1955                                         print_usage(prgname);
1956                                         return -1;
1957                                 }
1958                                 printf("empty-poll is enabled\n");
1959                         }
1960
1961                         if (!strncmp(lgopts[option_index].name,
1962                                         CMD_LINE_OPT_TELEMETRY,
1963                                         sizeof(CMD_LINE_OPT_TELEMETRY))) {
1964                                 if (app_mode != APP_MODE_DEFAULT) {
1965                                         printf(" telemetry mode is mutually exclusive with other modes\n");
1966                                         return -1;
1967                                 }
1968                                 app_mode = APP_MODE_TELEMETRY;
1969                                 printf("telemetry mode is enabled\n");
1970                         }
1971
1972                         if (!strncmp(lgopts[option_index].name,
1973                                         CMD_LINE_OPT_PMD_MGMT,
1974                                         sizeof(CMD_LINE_OPT_PMD_MGMT))) {
1975                                 if (app_mode != APP_MODE_DEFAULT) {
1976                                         printf(" power mgmt mode is mutually exclusive with other modes\n");
1977                                         return -1;
1978                                 }
1979                                 if (parse_pmd_mgmt_config(optarg) < 0) {
1980                                         printf(" Invalid PMD power management mode: %s\n",
1981                                                         optarg);
1982                                         return -1;
1983                                 }
1984                                 app_mode = APP_MODE_PMD_MGMT;
1985                                 printf("PMD power mgmt mode is enabled\n");
1986                         }
1987                         if (!strncmp(lgopts[option_index].name,
1988                                         CMD_LINE_OPT_INTERRUPT_ONLY,
1989                                         sizeof(CMD_LINE_OPT_INTERRUPT_ONLY))) {
1990                                 if (app_mode != APP_MODE_DEFAULT) {
1991                                         printf(" interrupt-only mode is mutually exclusive with other modes\n");
1992                                         return -1;
1993                                 }
1994                                 app_mode = APP_MODE_INTERRUPT;
1995                                 printf("interrupt-only mode is enabled\n");
1996                         }
1997
1998                         if (!strncmp(lgopts[option_index].name,
1999                                         CMD_LINE_OPT_MAX_PKT_LEN,
2000                                         sizeof(CMD_LINE_OPT_MAX_PKT_LEN))) {
2001                                 printf("Custom frame size is configured\n");
2002                                 max_pkt_len = parse_max_pkt_len(optarg);
2003                         }
2004
2005                         if (!strncmp(lgopts[option_index].name,
2006                                      CMD_LINE_OPT_PARSE_PTYPE,
2007                                      sizeof(CMD_LINE_OPT_PARSE_PTYPE))) {
2008                                 printf("soft parse-ptype is enabled\n");
2009                                 parse_ptype = 1;
2010                         }
2011
2012                         if (!strncmp(lgopts[option_index].name,
2013                                         CMD_LINE_OPT_MAX_EMPTY_POLLS,
2014                                         sizeof(CMD_LINE_OPT_MAX_EMPTY_POLLS))) {
2015                                 printf("Maximum empty polls configured\n");
2016                                 max_empty_polls = parse_int(optarg);
2017                         }
2018
2019                         if (!strncmp(lgopts[option_index].name,
2020                                         CMD_LINE_OPT_PAUSE_DURATION,
2021                                         sizeof(CMD_LINE_OPT_PAUSE_DURATION))) {
2022                                 printf("Pause duration configured\n");
2023                                 pause_duration = parse_int(optarg);
2024                         }
2025
2026                         if (!strncmp(lgopts[option_index].name,
2027                                         CMD_LINE_OPT_SCALE_FREQ_MIN,
2028                                         sizeof(CMD_LINE_OPT_SCALE_FREQ_MIN))) {
2029                                 printf("Scaling frequency minimum configured\n");
2030                                 scale_freq_min = parse_int(optarg);
2031                         }
2032
2033                         if (!strncmp(lgopts[option_index].name,
2034                                         CMD_LINE_OPT_SCALE_FREQ_MAX,
2035                                         sizeof(CMD_LINE_OPT_SCALE_FREQ_MAX))) {
2036                                 printf("Scaling frequency maximum configured\n");
2037                                 scale_freq_max = parse_int(optarg);
2038                         }
2039
2040                         break;
2041
2042                 default:
2043                         print_usage(prgname);
2044                         return -1;
2045                 }
2046         }
2047
2048         if (optind >= 0)
2049                 argv[optind-1] = prgname;
2050
2051         ret = optind-1;
2052         optind = 1; /* reset getopt lib */
2053         return ret;
2054 }
2055
2056 static void
2057 print_ethaddr(const char *name, const struct rte_ether_addr *eth_addr)
2058 {
2059         char buf[RTE_ETHER_ADDR_FMT_SIZE];
2060         rte_ether_format_addr(buf, RTE_ETHER_ADDR_FMT_SIZE, eth_addr);
2061         printf("%s%s", name, buf);
2062 }
2063
2064 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2065 static void
2066 setup_hash(int socketid)
2067 {
2068         struct rte_hash_parameters ipv4_l3fwd_hash_params = {
2069                 .name = NULL,
2070                 .entries = L3FWD_HASH_ENTRIES,
2071                 .key_len = sizeof(struct ipv4_5tuple),
2072                 .hash_func = DEFAULT_HASH_FUNC,
2073                 .hash_func_init_val = 0,
2074         };
2075
2076         struct rte_hash_parameters ipv6_l3fwd_hash_params = {
2077                 .name = NULL,
2078                 .entries = L3FWD_HASH_ENTRIES,
2079                 .key_len = sizeof(struct ipv6_5tuple),
2080                 .hash_func = DEFAULT_HASH_FUNC,
2081                 .hash_func_init_val = 0,
2082         };
2083
2084         unsigned i;
2085         int ret;
2086         char s[64];
2087
2088         /* create ipv4 hash */
2089         snprintf(s, sizeof(s), "ipv4_l3fwd_hash_%d", socketid);
2090         ipv4_l3fwd_hash_params.name = s;
2091         ipv4_l3fwd_hash_params.socket_id = socketid;
2092         ipv4_l3fwd_lookup_struct[socketid] =
2093                 rte_hash_create(&ipv4_l3fwd_hash_params);
2094         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2095                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2096                                 "socket %d\n", socketid);
2097
2098         /* create ipv6 hash */
2099         snprintf(s, sizeof(s), "ipv6_l3fwd_hash_%d", socketid);
2100         ipv6_l3fwd_hash_params.name = s;
2101         ipv6_l3fwd_hash_params.socket_id = socketid;
2102         ipv6_l3fwd_lookup_struct[socketid] =
2103                 rte_hash_create(&ipv6_l3fwd_hash_params);
2104         if (ipv6_l3fwd_lookup_struct[socketid] == NULL)
2105                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd hash on "
2106                                 "socket %d\n", socketid);
2107
2108
2109         /* populate the ipv4 hash */
2110         for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2111                 ret = rte_hash_add_key (ipv4_l3fwd_lookup_struct[socketid],
2112                                 (void *) &ipv4_l3fwd_route_array[i].key);
2113                 if (ret < 0) {
2114                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2115                                 "l3fwd hash on socket %d\n", i, socketid);
2116                 }
2117                 ipv4_l3fwd_out_if[ret] = ipv4_l3fwd_route_array[i].if_out;
2118                 printf("Hash: Adding key\n");
2119                 print_ipv4_key(ipv4_l3fwd_route_array[i].key);
2120         }
2121
2122         /* populate the ipv6 hash */
2123         for (i = 0; i < RTE_DIM(ipv6_l3fwd_route_array); i++) {
2124                 ret = rte_hash_add_key (ipv6_l3fwd_lookup_struct[socketid],
2125                                 (void *) &ipv6_l3fwd_route_array[i].key);
2126                 if (ret < 0) {
2127                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the"
2128                                 "l3fwd hash on socket %d\n", i, socketid);
2129                 }
2130                 ipv6_l3fwd_out_if[ret] = ipv6_l3fwd_route_array[i].if_out;
2131                 printf("Hash: Adding key\n");
2132                 print_ipv6_key(ipv6_l3fwd_route_array[i].key);
2133         }
2134 }
2135 #endif
2136
2137 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2138 static void
2139 setup_lpm(int socketid)
2140 {
2141         unsigned i;
2142         int ret;
2143         char s[64];
2144
2145         /* create the LPM table */
2146         struct rte_lpm_config lpm_ipv4_config;
2147
2148         lpm_ipv4_config.max_rules = IPV4_L3FWD_LPM_MAX_RULES;
2149         lpm_ipv4_config.number_tbl8s = 256;
2150         lpm_ipv4_config.flags = 0;
2151
2152         snprintf(s, sizeof(s), "IPV4_L3FWD_LPM_%d", socketid);
2153         ipv4_l3fwd_lookup_struct[socketid] =
2154                         rte_lpm_create(s, socketid, &lpm_ipv4_config);
2155         if (ipv4_l3fwd_lookup_struct[socketid] == NULL)
2156                 rte_exit(EXIT_FAILURE, "Unable to create the l3fwd LPM table"
2157                                 " on socket %d\n", socketid);
2158
2159         /* populate the LPM table */
2160         for (i = 0; i < RTE_DIM(ipv4_l3fwd_route_array); i++) {
2161                 ret = rte_lpm_add(ipv4_l3fwd_lookup_struct[socketid],
2162                         ipv4_l3fwd_route_array[i].ip,
2163                         ipv4_l3fwd_route_array[i].depth,
2164                         ipv4_l3fwd_route_array[i].if_out);
2165
2166                 if (ret < 0) {
2167                         rte_exit(EXIT_FAILURE, "Unable to add entry %u to the "
2168                                 "l3fwd LPM table on socket %d\n",
2169                                 i, socketid);
2170                 }
2171
2172                 printf("LPM: Adding route 0x%08x / %d (%d)\n",
2173                         (unsigned)ipv4_l3fwd_route_array[i].ip,
2174                         ipv4_l3fwd_route_array[i].depth,
2175                         ipv4_l3fwd_route_array[i].if_out);
2176         }
2177 }
2178 #endif
2179
2180 static int
2181 init_mem(unsigned nb_mbuf)
2182 {
2183         struct lcore_conf *qconf;
2184         int socketid;
2185         unsigned lcore_id;
2186         char s[64];
2187
2188         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2189                 if (rte_lcore_is_enabled(lcore_id) == 0)
2190                         continue;
2191
2192                 if (numa_on)
2193                         socketid = rte_lcore_to_socket_id(lcore_id);
2194                 else
2195                         socketid = 0;
2196
2197                 if (socketid >= NB_SOCKETS) {
2198                         rte_exit(EXIT_FAILURE, "Socket %d of lcore %u is "
2199                                         "out of range %d\n", socketid,
2200                                                 lcore_id, NB_SOCKETS);
2201                 }
2202                 if (pktmbuf_pool[socketid] == NULL) {
2203                         snprintf(s, sizeof(s), "mbuf_pool_%d", socketid);
2204                         pktmbuf_pool[socketid] =
2205                                 rte_pktmbuf_pool_create(s, nb_mbuf,
2206                                         MEMPOOL_CACHE_SIZE, 0,
2207                                         RTE_MBUF_DEFAULT_BUF_SIZE,
2208                                         socketid);
2209                         if (pktmbuf_pool[socketid] == NULL)
2210                                 rte_exit(EXIT_FAILURE,
2211                                         "Cannot init mbuf pool on socket %d\n",
2212                                                                 socketid);
2213                         else
2214                                 printf("Allocated mbuf pool on socket %d\n",
2215                                                                 socketid);
2216
2217 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2218                         setup_lpm(socketid);
2219 #else
2220                         setup_hash(socketid);
2221 #endif
2222                 }
2223                 qconf = &lcore_conf[lcore_id];
2224                 qconf->ipv4_lookup_struct = ipv4_l3fwd_lookup_struct[socketid];
2225 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2226                 qconf->ipv6_lookup_struct = ipv6_l3fwd_lookup_struct[socketid];
2227 #endif
2228         }
2229         return 0;
2230 }
2231
2232 /* Check the link status of all ports in up to 9s, and print them finally */
2233 static void
2234 check_all_ports_link_status(uint32_t port_mask)
2235 {
2236 #define CHECK_INTERVAL 100 /* 100ms */
2237 #define MAX_CHECK_TIME 90 /* 9s (90 * 100ms) in total */
2238         uint8_t count, all_ports_up, print_flag = 0;
2239         uint16_t portid;
2240         struct rte_eth_link link;
2241         int ret;
2242         char link_status_text[RTE_ETH_LINK_MAX_STR_LEN];
2243
2244         printf("\nChecking link status");
2245         fflush(stdout);
2246         for (count = 0; count <= MAX_CHECK_TIME; count++) {
2247                 all_ports_up = 1;
2248                 RTE_ETH_FOREACH_DEV(portid) {
2249                         if ((port_mask & (1 << portid)) == 0)
2250                                 continue;
2251                         memset(&link, 0, sizeof(link));
2252                         ret = rte_eth_link_get_nowait(portid, &link);
2253                         if (ret < 0) {
2254                                 all_ports_up = 0;
2255                                 if (print_flag == 1)
2256                                         printf("Port %u link get failed: %s\n",
2257                                                 portid, rte_strerror(-ret));
2258                                 continue;
2259                         }
2260                         /* print link status if flag set */
2261                         if (print_flag == 1) {
2262                                 rte_eth_link_to_str(link_status_text,
2263                                         sizeof(link_status_text), &link);
2264                                 printf("Port %d %s\n", portid,
2265                                        link_status_text);
2266                                 continue;
2267                         }
2268                         /* clear all_ports_up flag if any link down */
2269                         if (link.link_status == RTE_ETH_LINK_DOWN) {
2270                                 all_ports_up = 0;
2271                                 break;
2272                         }
2273                 }
2274                 /* after finally printing all link status, get out */
2275                 if (print_flag == 1)
2276                         break;
2277
2278                 if (all_ports_up == 0) {
2279                         printf(".");
2280                         fflush(stdout);
2281                         rte_delay_ms(CHECK_INTERVAL);
2282                 }
2283
2284                 /* set the print_flag if all ports up or timeout */
2285                 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) {
2286                         print_flag = 1;
2287                         printf("done\n");
2288                 }
2289         }
2290 }
2291
2292 static int check_ptype(uint16_t portid)
2293 {
2294         int i, ret;
2295         int ptype_l3_ipv4 = 0;
2296 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2297         int ptype_l3_ipv6 = 0;
2298 #endif
2299         uint32_t ptype_mask = RTE_PTYPE_L3_MASK;
2300
2301         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, NULL, 0);
2302         if (ret <= 0)
2303                 return 0;
2304
2305         uint32_t ptypes[ret];
2306
2307         ret = rte_eth_dev_get_supported_ptypes(portid, ptype_mask, ptypes, ret);
2308         for (i = 0; i < ret; ++i) {
2309                 if (ptypes[i] & RTE_PTYPE_L3_IPV4)
2310                         ptype_l3_ipv4 = 1;
2311 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2312                 if (ptypes[i] & RTE_PTYPE_L3_IPV6)
2313                         ptype_l3_ipv6 = 1;
2314 #endif
2315         }
2316
2317         if (ptype_l3_ipv4 == 0)
2318                 printf("port %d cannot parse RTE_PTYPE_L3_IPV4\n", portid);
2319
2320 #if (APP_LOOKUP_METHOD == APP_LOOKUP_EXACT_MATCH)
2321         if (ptype_l3_ipv6 == 0)
2322                 printf("port %d cannot parse RTE_PTYPE_L3_IPV6\n", portid);
2323 #endif
2324
2325 #if (APP_LOOKUP_METHOD == APP_LOOKUP_LPM)
2326         if (ptype_l3_ipv4)
2327 #else /* APP_LOOKUP_EXACT_MATCH */
2328         if (ptype_l3_ipv4 && ptype_l3_ipv6)
2329 #endif
2330                 return 1;
2331
2332         return 0;
2333
2334 }
2335
2336 static int
2337 init_power_library(void)
2338 {
2339         enum power_management_env env;
2340         unsigned int lcore_id;
2341         int ret = 0;
2342
2343         RTE_LCORE_FOREACH(lcore_id) {
2344                 /* init power management library */
2345                 ret = rte_power_init(lcore_id);
2346                 if (ret) {
2347                         RTE_LOG(ERR, POWER,
2348                                 "Library initialization failed on core %u\n",
2349                                 lcore_id);
2350                         return ret;
2351                 }
2352                 /* we're not supporting the VM channel mode */
2353                 env = rte_power_get_env();
2354                 if (env != PM_ENV_ACPI_CPUFREQ &&
2355                                 env != PM_ENV_PSTATE_CPUFREQ) {
2356                         RTE_LOG(ERR, POWER,
2357                                 "Only ACPI and PSTATE mode are supported\n");
2358                         return -1;
2359                 }
2360         }
2361         return ret;
2362 }
2363
2364 static int
2365 deinit_power_library(void)
2366 {
2367         unsigned int lcore_id;
2368         int ret = 0;
2369
2370         RTE_LCORE_FOREACH(lcore_id) {
2371                 /* deinit power management library */
2372                 ret = rte_power_exit(lcore_id);
2373                 if (ret) {
2374                         RTE_LOG(ERR, POWER,
2375                                 "Library deinitialization failed on core %u\n",
2376                                 lcore_id);
2377                         return ret;
2378                 }
2379         }
2380         return ret;
2381 }
2382
2383 static void
2384 get_current_stat_values(uint64_t *values)
2385 {
2386         unsigned int lcore_id = rte_lcore_id();
2387         struct lcore_conf *qconf;
2388         uint64_t app_eps = 0, app_fps = 0, app_br = 0;
2389         uint64_t count = 0;
2390
2391         RTE_LCORE_FOREACH_WORKER(lcore_id) {
2392                 qconf = &lcore_conf[lcore_id];
2393                 if (qconf->n_rx_queue == 0)
2394                         continue;
2395                 count++;
2396                 rte_spinlock_lock(&stats[lcore_id].telemetry_lock);
2397                 app_eps += stats[lcore_id].ep_nep[1];
2398                 app_fps += stats[lcore_id].fp_nfp[1];
2399                 app_br += stats[lcore_id].br;
2400                 rte_spinlock_unlock(&stats[lcore_id].telemetry_lock);
2401         }
2402
2403         if (count > 0) {
2404                 values[0] = app_eps/count;
2405                 values[1] = app_fps/count;
2406                 values[2] = app_br/count;
2407         } else
2408                 memset(values, 0, sizeof(uint64_t) * NUM_TELSTATS);
2409
2410 }
2411
2412 static void
2413 update_telemetry(__rte_unused struct rte_timer *tim,
2414                 __rte_unused void *arg)
2415 {
2416         int ret;
2417         uint64_t values[NUM_TELSTATS] = {0};
2418
2419         get_current_stat_values(values);
2420         ret = rte_metrics_update_values(RTE_METRICS_GLOBAL, telstats_index,
2421                                         values, RTE_DIM(values));
2422         if (ret < 0)
2423                 RTE_LOG(WARNING, POWER, "failed to update metrics\n");
2424 }
2425
2426 static int
2427 handle_app_stats(const char *cmd __rte_unused,
2428                 const char *params __rte_unused,
2429                 struct rte_tel_data *d)
2430 {
2431         uint64_t values[NUM_TELSTATS] = {0};
2432         uint32_t i;
2433
2434         rte_tel_data_start_dict(d);
2435         get_current_stat_values(values);
2436         for (i = 0; i < NUM_TELSTATS; i++)
2437                 rte_tel_data_add_dict_u64(d, telstats_strings[i].name,
2438                                 values[i]);
2439         return 0;
2440 }
2441
2442 static void
2443 telemetry_setup_timer(void)
2444 {
2445         int lcore_id = rte_lcore_id();
2446         uint64_t hz = rte_get_timer_hz();
2447         uint64_t ticks;
2448
2449         ticks = hz / TELEMETRY_INTERVALS_PER_SEC;
2450         rte_timer_reset_sync(&telemetry_timer,
2451                         ticks,
2452                         PERIODICAL,
2453                         lcore_id,
2454                         update_telemetry,
2455                         NULL);
2456 }
2457 static void
2458 empty_poll_setup_timer(void)
2459 {
2460         int lcore_id = rte_lcore_id();
2461         uint64_t hz = rte_get_timer_hz();
2462
2463         struct  ep_params *ep_ptr = ep_params;
2464
2465         ep_ptr->interval_ticks = hz / INTERVALS_PER_SECOND;
2466
2467         rte_timer_reset_sync(&ep_ptr->timer0,
2468                         ep_ptr->interval_ticks,
2469                         PERIODICAL,
2470                         lcore_id,
2471                         rte_empty_poll_detection,
2472                         (void *)ep_ptr);
2473
2474 }
2475 static int
2476 launch_timer(unsigned int lcore_id)
2477 {
2478         int64_t prev_tsc = 0, cur_tsc, diff_tsc, cycles_10ms;
2479
2480         RTE_SET_USED(lcore_id);
2481
2482
2483         if (rte_get_main_lcore() != lcore_id) {
2484                 rte_panic("timer on lcore:%d which is not main core:%d\n",
2485                                 lcore_id,
2486                                 rte_get_main_lcore());
2487         }
2488
2489         RTE_LOG(INFO, POWER, "Bring up the Timer\n");
2490
2491         if (app_mode == APP_MODE_EMPTY_POLL)
2492                 empty_poll_setup_timer();
2493         else
2494                 telemetry_setup_timer();
2495
2496         cycles_10ms = rte_get_timer_hz() / 100;
2497
2498         while (!is_done()) {
2499                 cur_tsc = rte_rdtsc();
2500                 diff_tsc = cur_tsc - prev_tsc;
2501                 if (diff_tsc > cycles_10ms) {
2502                         rte_timer_manage();
2503                         prev_tsc = cur_tsc;
2504                         cycles_10ms = rte_get_timer_hz() / 100;
2505                 }
2506         }
2507
2508         RTE_LOG(INFO, POWER, "Timer_subsystem is done\n");
2509
2510         return 0;
2511 }
2512
2513 static int
2514 autodetect_mode(void)
2515 {
2516         RTE_LOG(NOTICE, L3FWD_POWER, "Operating mode not specified, probing frequency scaling support...\n");
2517
2518         /*
2519          * Empty poll and telemetry modes have to be specifically requested to
2520          * be enabled, but we can auto-detect between interrupt mode with or
2521          * without frequency scaling. Both ACPI and pstate can be used.
2522          */
2523         if (rte_power_check_env_supported(PM_ENV_ACPI_CPUFREQ))
2524                 return APP_MODE_LEGACY;
2525         if (rte_power_check_env_supported(PM_ENV_PSTATE_CPUFREQ))
2526                 return APP_MODE_LEGACY;
2527
2528         RTE_LOG(NOTICE, L3FWD_POWER, "Frequency scaling not supported, selecting interrupt-only mode\n");
2529
2530         return APP_MODE_INTERRUPT;
2531 }
2532
2533 static const char *
2534 mode_to_str(enum appmode mode)
2535 {
2536         switch (mode) {
2537         case APP_MODE_LEGACY:
2538                 return "legacy";
2539         case APP_MODE_EMPTY_POLL:
2540                 return "empty poll";
2541         case APP_MODE_TELEMETRY:
2542                 return "telemetry";
2543         case APP_MODE_INTERRUPT:
2544                 return "interrupt-only";
2545         case APP_MODE_PMD_MGMT:
2546                 return "pmd mgmt";
2547         default:
2548                 return "invalid";
2549         }
2550 }
2551
2552 static uint32_t
2553 eth_dev_get_overhead_len(uint32_t max_rx_pktlen, uint16_t max_mtu)
2554 {
2555         uint32_t overhead_len;
2556
2557         if (max_mtu != UINT16_MAX && max_rx_pktlen > max_mtu)
2558                 overhead_len = max_rx_pktlen - max_mtu;
2559         else
2560                 overhead_len = RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN;
2561
2562         return overhead_len;
2563 }
2564
2565 static int
2566 config_port_max_pkt_len(struct rte_eth_conf *conf,
2567                 struct rte_eth_dev_info *dev_info)
2568 {
2569         uint32_t overhead_len;
2570
2571         if (max_pkt_len == 0)
2572                 return 0;
2573
2574         if (max_pkt_len < RTE_ETHER_MIN_LEN || max_pkt_len > MAX_JUMBO_PKT_LEN)
2575                 return -1;
2576
2577         overhead_len = eth_dev_get_overhead_len(dev_info->max_rx_pktlen,
2578                         dev_info->max_mtu);
2579         conf->rxmode.mtu = max_pkt_len - overhead_len;
2580
2581         if (conf->rxmode.mtu > RTE_ETHER_MTU)
2582                 conf->txmode.offloads |= RTE_ETH_TX_OFFLOAD_MULTI_SEGS;
2583
2584         return 0;
2585 }
2586
2587 /* Power library initialized in the main routine. 8< */
2588 int
2589 main(int argc, char **argv)
2590 {
2591         struct lcore_conf *qconf;
2592         struct rte_eth_dev_info dev_info;
2593         struct rte_eth_txconf *txconf;
2594         int ret;
2595         uint16_t nb_ports;
2596         uint16_t queueid;
2597         unsigned lcore_id;
2598         uint64_t hz;
2599         uint32_t n_tx_queue, nb_lcores;
2600         uint32_t dev_rxq_num, dev_txq_num;
2601         uint8_t nb_rx_queue, queue, socketid;
2602         uint16_t portid;
2603         const char *ptr_strings[NUM_TELSTATS];
2604
2605         /* init EAL */
2606         ret = rte_eal_init(argc, argv);
2607         if (ret < 0)
2608                 rte_exit(EXIT_FAILURE, "Invalid EAL parameters\n");
2609         argc -= ret;
2610         argv += ret;
2611
2612         /* catch SIGINT and restore cpufreq governor to ondemand */
2613         signal(SIGINT, signal_exit_now);
2614
2615         /* init RTE timer library to be used late */
2616         rte_timer_subsystem_init();
2617
2618         /* if we're running pmd-mgmt mode, don't default to baseline mode */
2619         baseline_enabled = false;
2620
2621         /* parse application arguments (after the EAL ones) */
2622         ret = parse_args(argc, argv);
2623         if (ret < 0)
2624                 rte_exit(EXIT_FAILURE, "Invalid L3FWD parameters\n");
2625
2626         if (app_mode == APP_MODE_DEFAULT)
2627                 app_mode = autodetect_mode();
2628
2629         RTE_LOG(INFO, L3FWD_POWER, "Selected operation mode: %s\n",
2630                         mode_to_str(app_mode));
2631
2632         /* only legacy and empty poll mode rely on power library */
2633         if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
2634                         init_power_library())
2635                 rte_exit(EXIT_FAILURE, "init_power_library failed\n");
2636
2637         if (update_lcore_params() < 0)
2638                 rte_exit(EXIT_FAILURE, "update_lcore_params failed\n");
2639
2640         if (check_lcore_params() < 0)
2641                 rte_exit(EXIT_FAILURE, "check_lcore_params failed\n");
2642
2643         ret = init_lcore_rx_queues();
2644         if (ret < 0)
2645                 rte_exit(EXIT_FAILURE, "init_lcore_rx_queues failed\n");
2646
2647         nb_ports = rte_eth_dev_count_avail();
2648
2649         if (check_port_config() < 0)
2650                 rte_exit(EXIT_FAILURE, "check_port_config failed\n");
2651
2652         nb_lcores = rte_lcore_count();
2653
2654         /* initialize all ports */
2655         RTE_ETH_FOREACH_DEV(portid) {
2656                 struct rte_eth_conf local_port_conf = port_conf;
2657                 /* not all app modes need interrupts */
2658                 bool need_intr = app_mode == APP_MODE_LEGACY ||
2659                                 app_mode == APP_MODE_INTERRUPT;
2660
2661                 /* skip ports that are not enabled */
2662                 if ((enabled_port_mask & (1 << portid)) == 0) {
2663                         printf("\nSkipping disabled port %d\n", portid);
2664                         continue;
2665                 }
2666
2667                 /* init port */
2668                 printf("Initializing port %d ... ", portid );
2669                 fflush(stdout);
2670
2671                 ret = rte_eth_dev_info_get(portid, &dev_info);
2672                 if (ret != 0)
2673                         rte_exit(EXIT_FAILURE,
2674                                 "Error during getting device (port %u) info: %s\n",
2675                                 portid, strerror(-ret));
2676
2677                 dev_rxq_num = dev_info.max_rx_queues;
2678                 dev_txq_num = dev_info.max_tx_queues;
2679
2680                 nb_rx_queue = get_port_n_rx_queues(portid);
2681                 if (nb_rx_queue > dev_rxq_num)
2682                         rte_exit(EXIT_FAILURE,
2683                                 "Cannot configure not existed rxq: "
2684                                 "port=%d\n", portid);
2685
2686                 n_tx_queue = nb_lcores;
2687                 if (n_tx_queue > dev_txq_num)
2688                         n_tx_queue = dev_txq_num;
2689                 printf("Creating queues: nb_rxq=%d nb_txq=%u... ",
2690                         nb_rx_queue, (unsigned)n_tx_queue );
2691                 /* If number of Rx queue is 0, no need to enable Rx interrupt */
2692                 if (nb_rx_queue == 0)
2693                         need_intr = false;
2694
2695                 if (need_intr)
2696                         local_port_conf.intr_conf.rxq = 1;
2697
2698                 ret = rte_eth_dev_info_get(portid, &dev_info);
2699                 if (ret != 0)
2700                         rte_exit(EXIT_FAILURE,
2701                                 "Error during getting device (port %u) info: %s\n",
2702                                 portid, strerror(-ret));
2703
2704                 ret = config_port_max_pkt_len(&local_port_conf, &dev_info);
2705                 if (ret != 0)
2706                         rte_exit(EXIT_FAILURE,
2707                                 "Invalid max packet length: %u (port %u)\n",
2708                                 max_pkt_len, portid);
2709
2710                 if (dev_info.tx_offload_capa & RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE)
2711                         local_port_conf.txmode.offloads |=
2712                                 RTE_ETH_TX_OFFLOAD_MBUF_FAST_FREE;
2713
2714                 local_port_conf.rx_adv_conf.rss_conf.rss_hf &=
2715                         dev_info.flow_type_rss_offloads;
2716                 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf !=
2717                                 port_conf.rx_adv_conf.rss_conf.rss_hf) {
2718                         printf("Port %u modified RSS hash function based on hardware support,"
2719                                 "requested:%#"PRIx64" configured:%#"PRIx64"\n",
2720                                 portid,
2721                                 port_conf.rx_adv_conf.rss_conf.rss_hf,
2722                                 local_port_conf.rx_adv_conf.rss_conf.rss_hf);
2723                 }
2724
2725                 if (local_port_conf.rx_adv_conf.rss_conf.rss_hf == 0)
2726                         local_port_conf.rxmode.mq_mode = RTE_ETH_MQ_RX_NONE;
2727                 local_port_conf.rxmode.offloads &= dev_info.rx_offload_capa;
2728                 port_conf.rxmode.offloads = local_port_conf.rxmode.offloads;
2729
2730                 ret = rte_eth_dev_configure(portid, nb_rx_queue,
2731                                         (uint16_t)n_tx_queue, &local_port_conf);
2732                 if (ret < 0)
2733                         rte_exit(EXIT_FAILURE, "Cannot configure device: "
2734                                         "err=%d, port=%d\n", ret, portid);
2735
2736                 ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &nb_rxd,
2737                                                        &nb_txd);
2738                 if (ret < 0)
2739                         rte_exit(EXIT_FAILURE,
2740                                  "Cannot adjust number of descriptors: err=%d, port=%d\n",
2741                                  ret, portid);
2742
2743                 ret = rte_eth_macaddr_get(portid, &ports_eth_addr[portid]);
2744                 if (ret < 0)
2745                         rte_exit(EXIT_FAILURE,
2746                                  "Cannot get MAC address: err=%d, port=%d\n",
2747                                  ret, portid);
2748
2749                 print_ethaddr(" Address:", &ports_eth_addr[portid]);
2750                 printf(", ");
2751
2752                 /* init memory */
2753                 ret = init_mem(NB_MBUF);
2754                 if (ret < 0)
2755                         rte_exit(EXIT_FAILURE, "init_mem failed\n");
2756
2757                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2758                         if (rte_lcore_is_enabled(lcore_id) == 0)
2759                                 continue;
2760
2761                         /* Initialize TX buffers */
2762                         qconf = &lcore_conf[lcore_id];
2763                         qconf->tx_buffer[portid] = rte_zmalloc_socket("tx_buffer",
2764                                 RTE_ETH_TX_BUFFER_SIZE(MAX_PKT_BURST), 0,
2765                                 rte_eth_dev_socket_id(portid));
2766                         if (qconf->tx_buffer[portid] == NULL)
2767                                 rte_exit(EXIT_FAILURE, "Can't allocate tx buffer for port %u\n",
2768                                                  portid);
2769
2770                         rte_eth_tx_buffer_init(qconf->tx_buffer[portid], MAX_PKT_BURST);
2771                 }
2772
2773                 /* init one TX queue per couple (lcore,port) */
2774                 queueid = 0;
2775                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2776                         if (rte_lcore_is_enabled(lcore_id) == 0)
2777                                 continue;
2778
2779                         if (queueid >= dev_txq_num)
2780                                 continue;
2781
2782                         if (numa_on)
2783                                 socketid = \
2784                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2785                         else
2786                                 socketid = 0;
2787
2788                         printf("txq=%u,%d,%d ", lcore_id, queueid, socketid);
2789                         fflush(stdout);
2790
2791                         txconf = &dev_info.default_txconf;
2792                         txconf->offloads = local_port_conf.txmode.offloads;
2793                         ret = rte_eth_tx_queue_setup(portid, queueid, nb_txd,
2794                                                      socketid, txconf);
2795                         if (ret < 0)
2796                                 rte_exit(EXIT_FAILURE,
2797                                         "rte_eth_tx_queue_setup: err=%d, "
2798                                                 "port=%d\n", ret, portid);
2799
2800                         qconf = &lcore_conf[lcore_id];
2801                         qconf->tx_queue_id[portid] = queueid;
2802                         queueid++;
2803
2804                         qconf->tx_port_id[qconf->n_tx_port] = portid;
2805                         qconf->n_tx_port++;
2806                 }
2807                 printf("\n");
2808         }
2809
2810         for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
2811                 if (rte_lcore_is_enabled(lcore_id) == 0)
2812                         continue;
2813
2814                 if (app_mode == APP_MODE_LEGACY) {
2815                         /* init timer structures for each enabled lcore */
2816                         rte_timer_init(&power_timers[lcore_id]);
2817                         hz = rte_get_timer_hz();
2818                         rte_timer_reset(&power_timers[lcore_id],
2819                                         hz/TIMER_NUMBER_PER_SECOND,
2820                                         SINGLE, lcore_id,
2821                                         power_timer_cb, NULL);
2822                 }
2823                 qconf = &lcore_conf[lcore_id];
2824                 printf("\nInitializing rx queues on lcore %u ... ", lcore_id );
2825                 fflush(stdout);
2826
2827                 /* init RX queues */
2828                 for(queue = 0; queue < qconf->n_rx_queue; ++queue) {
2829                         struct rte_eth_rxconf rxq_conf;
2830
2831                         portid = qconf->rx_queue_list[queue].port_id;
2832                         queueid = qconf->rx_queue_list[queue].queue_id;
2833
2834                         if (numa_on)
2835                                 socketid = \
2836                                 (uint8_t)rte_lcore_to_socket_id(lcore_id);
2837                         else
2838                                 socketid = 0;
2839
2840                         printf("rxq=%d,%d,%d ", portid, queueid, socketid);
2841                         fflush(stdout);
2842
2843                         ret = rte_eth_dev_info_get(portid, &dev_info);
2844                         if (ret != 0)
2845                                 rte_exit(EXIT_FAILURE,
2846                                         "Error during getting device (port %u) info: %s\n",
2847                                         portid, strerror(-ret));
2848
2849                         rxq_conf = dev_info.default_rxconf;
2850                         rxq_conf.offloads = port_conf.rxmode.offloads;
2851                         ret = rte_eth_rx_queue_setup(portid, queueid, nb_rxd,
2852                                 socketid, &rxq_conf,
2853                                 pktmbuf_pool[socketid]);
2854                         if (ret < 0)
2855                                 rte_exit(EXIT_FAILURE,
2856                                         "rte_eth_rx_queue_setup: err=%d, "
2857                                                 "port=%d\n", ret, portid);
2858
2859                         if (parse_ptype) {
2860                                 if (add_cb_parse_ptype(portid, queueid) < 0)
2861                                         rte_exit(EXIT_FAILURE,
2862                                                  "Fail to add ptype cb\n");
2863                         }
2864
2865                         if (app_mode == APP_MODE_PMD_MGMT && !baseline_enabled) {
2866                                 /* Set power_pmd_mgmt configs passed by user */
2867                                 rte_power_pmd_mgmt_set_emptypoll_max(max_empty_polls);
2868                                 ret = rte_power_pmd_mgmt_set_pause_duration(pause_duration);
2869                                 if (ret < 0)
2870                                         rte_exit(EXIT_FAILURE,
2871                                                 "Error setting pause_duration: err=%d, lcore=%d\n",
2872                                                         ret, lcore_id);
2873
2874                                 ret = rte_power_pmd_mgmt_set_scaling_freq_min(lcore_id,
2875                                                 scale_freq_min);
2876                                 if (ret < 0)
2877                                         rte_exit(EXIT_FAILURE,
2878                                                 "Error setting scaling freq min: err=%d, lcore=%d\n",
2879                                                         ret, lcore_id);
2880
2881                                 ret = rte_power_pmd_mgmt_set_scaling_freq_max(lcore_id,
2882                                                 scale_freq_max);
2883                                 if (ret < 0)
2884                                         rte_exit(EXIT_FAILURE,
2885                                                 "Error setting scaling freq max: err=%d, lcore %d\n",
2886                                                         ret, lcore_id);
2887
2888                                 ret = rte_power_ethdev_pmgmt_queue_enable(
2889                                                 lcore_id, portid, queueid,
2890                                                 pmgmt_type);
2891                                 if (ret < 0)
2892                                         rte_exit(EXIT_FAILURE,
2893                                                 "rte_power_ethdev_pmgmt_queue_enable: err=%d, port=%d\n",
2894                                                         ret, portid);
2895                         }
2896                 }
2897         }
2898         /* >8 End of power library initialization. */
2899
2900         printf("\n");
2901
2902         /* start ports */
2903         RTE_ETH_FOREACH_DEV(portid) {
2904                 if ((enabled_port_mask & (1 << portid)) == 0) {
2905                         continue;
2906                 }
2907                 /* Start device */
2908                 ret = rte_eth_dev_start(portid);
2909                 if (ret < 0)
2910                         rte_exit(EXIT_FAILURE, "rte_eth_dev_start: err=%d, "
2911                                                 "port=%d\n", ret, portid);
2912                 /*
2913                  * If enabled, put device in promiscuous mode.
2914                  * This allows IO forwarding mode to forward packets
2915                  * to itself through 2 cross-connected  ports of the
2916                  * target machine.
2917                  */
2918                 if (promiscuous_on) {
2919                         ret = rte_eth_promiscuous_enable(portid);
2920                         if (ret != 0)
2921                                 rte_exit(EXIT_FAILURE,
2922                                         "rte_eth_promiscuous_enable: err=%s, port=%u\n",
2923                                         rte_strerror(-ret), portid);
2924                 }
2925                 /* initialize spinlock for each port */
2926                 rte_spinlock_init(&(locks[portid]));
2927
2928                 if (!parse_ptype)
2929                         if (!check_ptype(portid))
2930                                 rte_exit(EXIT_FAILURE,
2931                                         "PMD can not provide needed ptypes\n");
2932         }
2933
2934         check_all_ports_link_status(enabled_port_mask);
2935
2936         if (app_mode == APP_MODE_EMPTY_POLL) {
2937
2938                 if (empty_poll_train) {
2939                         policy.state = TRAINING;
2940                 } else {
2941                         policy.state = MED_NORMAL;
2942                         policy.med_base_edpi = ep_med_edpi;
2943                         policy.hgh_base_edpi = ep_hgh_edpi;
2944                 }
2945
2946                 ret = rte_power_empty_poll_stat_init(&ep_params,
2947                                 freq_tlb,
2948                                 &policy);
2949                 if (ret < 0)
2950                         rte_exit(EXIT_FAILURE, "empty poll init failed");
2951         }
2952
2953
2954         /* launch per-lcore init on every lcore */
2955         if (app_mode == APP_MODE_LEGACY) {
2956                 rte_eal_mp_remote_launch(main_legacy_loop, NULL, CALL_MAIN);
2957         } else if (app_mode == APP_MODE_EMPTY_POLL) {
2958                 empty_poll_stop = false;
2959                 rte_eal_mp_remote_launch(main_empty_poll_loop, NULL,
2960                                 SKIP_MAIN);
2961         } else if (app_mode == APP_MODE_TELEMETRY) {
2962                 unsigned int i;
2963
2964                 /* Init metrics library */
2965                 rte_metrics_init(rte_socket_id());
2966                 /** Register stats with metrics library */
2967                 for (i = 0; i < NUM_TELSTATS; i++)
2968                         ptr_strings[i] = telstats_strings[i].name;
2969
2970                 ret = rte_metrics_reg_names(ptr_strings, NUM_TELSTATS);
2971                 if (ret >= 0)
2972                         telstats_index = ret;
2973                 else
2974                         rte_exit(EXIT_FAILURE, "failed to register metrics names");
2975
2976                 RTE_LCORE_FOREACH_WORKER(lcore_id) {
2977                         rte_spinlock_init(&stats[lcore_id].telemetry_lock);
2978                 }
2979                 rte_timer_init(&telemetry_timer);
2980                 rte_telemetry_register_cmd("/l3fwd-power/stats",
2981                                 handle_app_stats,
2982                                 "Returns global power stats. Parameters: None");
2983                 rte_eal_mp_remote_launch(main_telemetry_loop, NULL,
2984                                                 SKIP_MAIN);
2985         } else if (app_mode == APP_MODE_INTERRUPT) {
2986                 rte_eal_mp_remote_launch(main_intr_loop, NULL, CALL_MAIN);
2987         } else if (app_mode == APP_MODE_PMD_MGMT) {
2988                 /* reuse telemetry loop for PMD power management mode */
2989                 rte_eal_mp_remote_launch(main_telemetry_loop, NULL, CALL_MAIN);
2990         }
2991
2992         if (app_mode == APP_MODE_EMPTY_POLL || app_mode == APP_MODE_TELEMETRY)
2993                 launch_timer(rte_lcore_id());
2994
2995         RTE_LCORE_FOREACH_WORKER(lcore_id) {
2996                 if (rte_eal_wait_lcore(lcore_id) < 0)
2997                         return -1;
2998         }
2999
3000         if (app_mode == APP_MODE_PMD_MGMT) {
3001                 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) {
3002                         if (rte_lcore_is_enabled(lcore_id) == 0)
3003                                 continue;
3004                         qconf = &lcore_conf[lcore_id];
3005                         for (queue = 0; queue < qconf->n_rx_queue; ++queue) {
3006                                 portid = qconf->rx_queue_list[queue].port_id;
3007                                 queueid = qconf->rx_queue_list[queue].queue_id;
3008
3009                                 rte_power_ethdev_pmgmt_queue_disable(lcore_id,
3010                                                 portid, queueid);
3011                         }
3012                 }
3013         }
3014
3015         RTE_ETH_FOREACH_DEV(portid)
3016         {
3017                 if ((enabled_port_mask & (1 << portid)) == 0)
3018                         continue;
3019
3020                 ret = rte_eth_dev_stop(portid);
3021                 if (ret != 0)
3022                         RTE_LOG(ERR, L3FWD_POWER, "rte_eth_dev_stop: err=%d, port=%u\n",
3023                                 ret, portid);
3024
3025                 rte_eth_dev_close(portid);
3026         }
3027
3028         if (app_mode == APP_MODE_EMPTY_POLL)
3029                 rte_power_empty_poll_stat_free();
3030
3031         if ((app_mode == APP_MODE_LEGACY || app_mode == APP_MODE_EMPTY_POLL) &&
3032                         deinit_power_library())
3033                 rte_exit(EXIT_FAILURE, "deinit_power_library failed\n");
3034
3035         if (rte_eal_cleanup() < 0)
3036                 RTE_LOG(ERR, L3FWD_POWER, "EAL cleanup failed\n");
3037
3038         return 0;
3039 }