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