examples/qos_sched/init.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2010-2014 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <memory.h>
   7
   8 #include <rte_log.h>
   9 #include <rte_mbuf.h>
  10 #include <rte_debug.h>
  11 #include <rte_ethdev.h>
  12 #include <rte_mempool.h>
  13 #include <rte_sched.h>
  14 #include <rte_cycles.h>
  15 #include <rte_string_fns.h>
  16 #include <rte_cfgfile.h>
  17
  18 #include "main.h"
  19 #include "cfg_file.h"
  20
  21 uint32_t app_numa_mask = 0;
  22 static uint32_t app_inited_port_mask = 0;
  23
  24 int app_pipe_to_profile[MAX_SCHED_SUBPORTS][MAX_SCHED_PIPES];
  25
  26 #define MAX_NAME_LEN 32
  27
  28 struct ring_conf ring_conf = {
  29         .rx_size   = APP_RX_DESC_DEFAULT,
  30         .ring_size = APP_RING_SIZE,
  31         .tx_size   = APP_TX_DESC_DEFAULT,
  32 };
  33
  34 struct burst_conf burst_conf = {
  35         .rx_burst    = MAX_PKT_RX_BURST,
  36         .ring_burst  = PKT_ENQUEUE,
  37         .qos_dequeue = PKT_DEQUEUE,
  38         .tx_burst    = MAX_PKT_TX_BURST,
  39 };
  40
  41 struct ring_thresh rx_thresh = {
  42         .pthresh = RX_PTHRESH,
  43         .hthresh = RX_HTHRESH,
  44         .wthresh = RX_WTHRESH,
  45 };
  46
  47 struct ring_thresh tx_thresh = {
  48         .pthresh = TX_PTHRESH,
  49         .hthresh = TX_HTHRESH,
  50         .wthresh = TX_WTHRESH,
  51 };
  52
  53 uint32_t nb_pfc;
  54 const char *cfg_profile = NULL;
  55 int mp_size = NB_MBUF;
  56 struct flow_conf qos_conf[MAX_DATA_STREAMS];
  57
  58 static struct rte_eth_conf port_conf = {
  59         .rxmode = {
  60                 .max_rx_pkt_len = ETHER_MAX_LEN,
  61                 .split_hdr_size = 0,
  62         },
  63         .txmode = {
  64                 .mq_mode = ETH_DCB_NONE,
  65         },
  66 };
  67
  68 static int
  69 app_init_port(uint16_t portid, struct rte_mempool *mp)
  70 {
  71         int ret;
  72         struct rte_eth_link link;
  73         struct rte_eth_dev_info dev_info;
  74         struct rte_eth_rxconf rx_conf;
  75         struct rte_eth_txconf tx_conf;
  76         uint16_t rx_size;
  77         uint16_t tx_size;
  78         struct rte_eth_conf local_port_conf = port_conf;
  79
  80         /* check if port already initialized (multistream configuration) */
  81         if (app_inited_port_mask & (1u << portid))
  82                 return 0;
  83
  84         rx_conf.rx_thresh.pthresh = rx_thresh.pthresh;
  85         rx_conf.rx_thresh.hthresh = rx_thresh.hthresh;
  86         rx_conf.rx_thresh.wthresh = rx_thresh.wthresh;
  87         rx_conf.rx_free_thresh = 32;
  88         rx_conf.rx_drop_en = 0;
  89         rx_conf.rx_deferred_start = 0;
  90
  91         tx_conf.tx_thresh.pthresh = tx_thresh.pthresh;
  92         tx_conf.tx_thresh.hthresh = tx_thresh.hthresh;
  93         tx_conf.tx_thresh.wthresh = tx_thresh.wthresh;
  94         tx_conf.tx_free_thresh = 0;
  95         tx_conf.tx_rs_thresh = 0;
  96         tx_conf.tx_deferred_start = 0;
  97
  98         /* init port */
  99         RTE_LOG(INFO, APP, "Initializing port %"PRIu16"... ", portid);
 100         fflush(stdout);
 101         rte_eth_dev_info_get(portid, &dev_info);
 102         if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 103                 local_port_conf.txmode.offloads |=
 104                         DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 105         ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 106         if (ret < 0)
 107                 rte_exit(EXIT_FAILURE,
 108                          "Cannot configure device: err=%d, port=%u\n",
 109                          ret, portid);
 110
 111         rx_size = ring_conf.rx_size;
 112         tx_size = ring_conf.tx_size;
 113         ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &rx_size, &tx_size);
 114         if (ret < 0)
 115                 rte_exit(EXIT_FAILURE,
 116                          "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d,port=%u\n",
 117                          ret, portid);
 118         ring_conf.rx_size = rx_size;
 119         ring_conf.tx_size = tx_size;
 120
 121         /* init one RX queue */
 122         fflush(stdout);
 123         rx_conf.offloads = local_port_conf.rxmode.offloads;
 124         ret = rte_eth_rx_queue_setup(portid, 0, (uint16_t)ring_conf.rx_size,
 125                 rte_eth_dev_socket_id(portid), &rx_conf, mp);
 126         if (ret < 0)
 127                 rte_exit(EXIT_FAILURE,
 128                          "rte_eth_tx_queue_setup: err=%d, port=%u\n",
 129                          ret, portid);
 130
 131         /* init one TX queue */
 132         fflush(stdout);
 133         tx_conf.offloads = local_port_conf.txmode.offloads;
 134         ret = rte_eth_tx_queue_setup(portid, 0,
 135                 (uint16_t)ring_conf.tx_size, rte_eth_dev_socket_id(portid), &tx_conf);
 136         if (ret < 0)
 137                 rte_exit(EXIT_FAILURE,
 138                          "rte_eth_tx_queue_setup: err=%d, port=%u queue=%d\n",
 139                          ret, portid, 0);
 140
 141         /* Start device */
 142         ret = rte_eth_dev_start(portid);
 143         if (ret < 0)
 144                 rte_exit(EXIT_FAILURE,
 145                          "rte_pmd_port_start: err=%d, port=%u\n",
 146                          ret, portid);
 147
 148         printf("done: ");
 149
 150         /* get link status */
 151         rte_eth_link_get(portid, &link);
 152         if (link.link_status) {
 153                 printf(" Link Up - speed %u Mbps - %s\n",
 154                         (uint32_t) link.link_speed,
 155                         (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 156                         ("full-duplex") : ("half-duplex\n"));
 157         } else {
 158                 printf(" Link Down\n");
 159         }
 160         rte_eth_promiscuous_enable(portid);
 161
 162         /* mark port as initialized */
 163         app_inited_port_mask |= 1u << portid;
 164
 165         return 0;
 166 }
 167
 168 static struct rte_sched_subport_params subport_params[MAX_SCHED_SUBPORTS] = {
 169         {
 170                 .tb_rate = 1250000000,
 171                 .tb_size = 1000000,
 172
 173                 .tc_rate = {1250000000, 1250000000, 1250000000, 1250000000},
 174                 .tc_period = 10,
 175         },
 176 };
 177
 178 static struct rte_sched_pipe_params pipe_profiles[RTE_SCHED_PIPE_PROFILES_PER_PORT] = {
 179         { /* Profile #0 */
 180                 .tb_rate = 305175,
 181                 .tb_size = 1000000,
 182
 183                 .tc_rate = {305175, 305175, 305175, 305175},
 184                 .tc_period = 40,
 185 #ifdef RTE_SCHED_SUBPORT_TC_OV
 186                 .tc_ov_weight = 1,
 187 #endif
 188
 189                 .wrr_weights = {1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1},
 190         },
 191 };
 192
 193 struct rte_sched_port_params port_params = {
 194         .name = "port_scheduler_0",
 195         .socket = 0, /* computed */
 196         .rate = 0, /* computed */
 197         .mtu = 6 + 6 + 4 + 4 + 2 + 1500,
 198         .frame_overhead = RTE_SCHED_FRAME_OVERHEAD_DEFAULT,
 199         .n_subports_per_port = 1,
 200         .n_pipes_per_subport = 4096,
 201         .qsize = {64, 64, 64, 64},
 202         .pipe_profiles = pipe_profiles,
 203         .n_pipe_profiles = sizeof(pipe_profiles) / sizeof(struct rte_sched_pipe_params),
 204
 205 #ifdef RTE_SCHED_RED
 206         .red_params = {
 207                 /* Traffic Class 0 Colors Green / Yellow / Red */
 208                 [0][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 209                 [0][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 210                 [0][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 211
 212                 /* Traffic Class 1 - Colors Green / Yellow / Red */
 213                 [1][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 214                 [1][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 215                 [1][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 216
 217                 /* Traffic Class 2 - Colors Green / Yellow / Red */
 218                 [2][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 219                 [2][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 220                 [2][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 221
 222                 /* Traffic Class 3 - Colors Green / Yellow / Red */
 223                 [3][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 224                 [3][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 225                 [3][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9}
 226         }
 227 #endif /* RTE_SCHED_RED */
 228 };
 229
 230 static struct rte_sched_port *
 231 app_init_sched_port(uint32_t portid, uint32_t socketid)
 232 {
 233         static char port_name[32]; /* static as referenced from global port_params*/
 234         struct rte_eth_link link;
 235         struct rte_sched_port *port = NULL;
 236         uint32_t pipe, subport;
 237         int err;
 238
 239         rte_eth_link_get(portid, &link);
 240
 241         port_params.socket = socketid;
 242         port_params.rate = (uint64_t) link.link_speed * 1000 * 1000 / 8;
 243         snprintf(port_name, sizeof(port_name), "port_%d", portid);
 244         port_params.name = port_name;
 245
 246         port = rte_sched_port_config(&port_params);
 247         if (port == NULL){
 248                 rte_exit(EXIT_FAILURE, "Unable to config sched port\n");
 249         }
 250
 251         for (subport = 0; subport < port_params.n_subports_per_port; subport ++) {
 252                 err = rte_sched_subport_config(port, subport, &subport_params[subport]);
 253                 if (err) {
 254                         rte_exit(EXIT_FAILURE, "Unable to config sched subport %u, err=%d\n",
 255                                         subport, err);
 256                 }
 257
 258                 for (pipe = 0; pipe < port_params.n_pipes_per_subport; pipe ++) {
 259                         if (app_pipe_to_profile[subport][pipe] != -1) {
 260                                 err = rte_sched_pipe_config(port, subport, pipe,
 261                                                 app_pipe_to_profile[subport][pipe]);
 262                                 if (err) {
 263                                         rte_exit(EXIT_FAILURE, "Unable to config sched pipe %u "
 264                                                         "for profile %d, err=%d\n", pipe,
 265                                                         app_pipe_to_profile[subport][pipe], err);
 266                                 }
 267                         }
 268                 }
 269         }
 270
 271         return port;
 272 }
 273
 274 static int
 275 app_load_cfg_profile(const char *profile)
 276 {
 277         if (profile == NULL)
 278                 return 0;
 279         struct rte_cfgfile *file = rte_cfgfile_load(profile, 0);
 280         if (file == NULL)
 281                 rte_exit(EXIT_FAILURE, "Cannot load configuration profile %s\n", profile);
 282
 283         cfg_load_port(file, &port_params);
 284         cfg_load_subport(file, subport_params);
 285         cfg_load_pipe(file, pipe_profiles);
 286
 287         rte_cfgfile_close(file);
 288
 289         return 0;
 290 }
 291
 292 int app_init(void)
 293 {
 294         uint32_t i;
 295         char ring_name[MAX_NAME_LEN];
 296         char pool_name[MAX_NAME_LEN];
 297
 298         if (rte_eth_dev_count_avail() == 0)
 299                 rte_exit(EXIT_FAILURE, "No Ethernet port - bye\n");
 300
 301         /* load configuration profile */
 302         if (app_load_cfg_profile(cfg_profile) != 0)
 303                 rte_exit(EXIT_FAILURE, "Invalid configuration profile\n");
 304
 305         /* Initialize each active flow */
 306         for(i = 0; i < nb_pfc; i++) {
 307                 uint32_t socket = rte_lcore_to_socket_id(qos_conf[i].rx_core);
 308                 struct rte_ring *ring;
 309
 310                 snprintf(ring_name, MAX_NAME_LEN, "ring-%u-%u", i, qos_conf[i].rx_core);
 311                 ring = rte_ring_lookup(ring_name);
 312                 if (ring == NULL)
 313                         qos_conf[i].rx_ring = rte_ring_create(ring_name, ring_conf.ring_size,
 314                                 socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 315                 else
 316                         qos_conf[i].rx_ring = ring;
 317
 318                 snprintf(ring_name, MAX_NAME_LEN, "ring-%u-%u", i, qos_conf[i].tx_core);
 319                 ring = rte_ring_lookup(ring_name);
 320                 if (ring == NULL)
 321                         qos_conf[i].tx_ring = rte_ring_create(ring_name, ring_conf.ring_size,
 322                                 socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 323                 else
 324                         qos_conf[i].tx_ring = ring;
 325
 326
 327                 /* create the mbuf pools for each RX Port */
 328                 snprintf(pool_name, MAX_NAME_LEN, "mbuf_pool%u", i);
 329                 qos_conf[i].mbuf_pool = rte_pktmbuf_pool_create(pool_name,
 330                         mp_size, burst_conf.rx_burst * 4, 0,
 331                         RTE_MBUF_DEFAULT_BUF_SIZE,
 332                         rte_eth_dev_socket_id(qos_conf[i].rx_port));
 333                 if (qos_conf[i].mbuf_pool == NULL)
 334                         rte_exit(EXIT_FAILURE, "Cannot init mbuf pool for socket %u\n", i);
 335
 336                 app_init_port(qos_conf[i].rx_port, qos_conf[i].mbuf_pool);
 337                 app_init_port(qos_conf[i].tx_port, qos_conf[i].mbuf_pool);
 338
 339                 qos_conf[i].sched_port = app_init_sched_port(qos_conf[i].tx_port, socket);
 340         }
 341
 342         RTE_LOG(INFO, APP, "time stamp clock running at %" PRIu64 " Hz\n",
 343                          rte_get_timer_hz());
 344
 345         RTE_LOG(INFO, APP, "Ring sizes: NIC RX = %u, Mempool = %d SW queue = %u,"
 346                          "NIC TX = %u\n", ring_conf.rx_size, mp_size, ring_conf.ring_size,
 347                          ring_conf.tx_size);
 348
 349         RTE_LOG(INFO, APP, "Burst sizes: RX read = %hu, RX write = %hu,\n"
 350                                                   "             Worker read/QoS enqueue = %hu,\n"
 351                                                   "             QoS dequeue = %hu, Worker write = %hu\n",
 352                 burst_conf.rx_burst, burst_conf.ring_burst, burst_conf.ring_burst,
 353                 burst_conf.qos_dequeue, burst_conf.tx_burst);
 354
 355         RTE_LOG(INFO, APP, "NIC thresholds RX (p = %hhu, h = %hhu, w = %hhu),"
 356                                  "TX (p = %hhu, h = %hhu, w = %hhu)\n",
 357                 rx_thresh.pthresh, rx_thresh.hthresh, rx_thresh.wthresh,
 358                 tx_thresh.pthresh, tx_thresh.hthresh, tx_thresh.wthresh);
 359
 360         return 0;
 361 }