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                 .offloads = DEV_RX_OFFLOAD_CRC_STRIP,
  63         },
  64         .txmode = {
  65                 .mq_mode = ETH_DCB_NONE,
  66         },
  67 };
  68
  69 static int
  70 app_init_port(uint16_t portid, struct rte_mempool *mp)
  71 {
  72         int ret;
  73         struct rte_eth_link link;
  74         struct rte_eth_dev_info dev_info;
  75         struct rte_eth_rxconf rx_conf;
  76         struct rte_eth_txconf tx_conf;
  77         uint16_t rx_size;
  78         uint16_t tx_size;
  79         struct rte_eth_conf local_port_conf = port_conf;
  80
  81         /* check if port already initialized (multistream configuration) */
  82         if (app_inited_port_mask & (1u << portid))
  83                 return 0;
  84
  85         rx_conf.rx_thresh.pthresh = rx_thresh.pthresh;
  86         rx_conf.rx_thresh.hthresh = rx_thresh.hthresh;
  87         rx_conf.rx_thresh.wthresh = rx_thresh.wthresh;
  88         rx_conf.rx_free_thresh = 32;
  89         rx_conf.rx_drop_en = 0;
  90         rx_conf.rx_deferred_start = 0;
  91
  92         tx_conf.tx_thresh.pthresh = tx_thresh.pthresh;
  93         tx_conf.tx_thresh.hthresh = tx_thresh.hthresh;
  94         tx_conf.tx_thresh.wthresh = tx_thresh.wthresh;
  95         tx_conf.tx_free_thresh = 0;
  96         tx_conf.tx_rs_thresh = 0;
  97         tx_conf.tx_deferred_start = 0;
  98
  99         /* init port */
 100         RTE_LOG(INFO, APP, "Initializing port %"PRIu16"... ", portid);
 101         fflush(stdout);
 102         rte_eth_dev_info_get(portid, &dev_info);
 103         if (dev_info.tx_offload_capa & DEV_TX_OFFLOAD_MBUF_FAST_FREE)
 104                 local_port_conf.txmode.offloads |=
 105                         DEV_TX_OFFLOAD_MBUF_FAST_FREE;
 106         ret = rte_eth_dev_configure(portid, 1, 1, &local_port_conf);
 107         if (ret < 0)
 108                 rte_exit(EXIT_FAILURE,
 109                          "Cannot configure device: err=%d, port=%u\n",
 110                          ret, portid);
 111
 112         rx_size = ring_conf.rx_size;
 113         tx_size = ring_conf.tx_size;
 114         ret = rte_eth_dev_adjust_nb_rx_tx_desc(portid, &rx_size, &tx_size);
 115         if (ret < 0)
 116                 rte_exit(EXIT_FAILURE,
 117                          "rte_eth_dev_adjust_nb_rx_tx_desc: err=%d,port=%u\n",
 118                          ret, portid);
 119         ring_conf.rx_size = rx_size;
 120         ring_conf.tx_size = tx_size;
 121
 122         /* init one RX queue */
 123         fflush(stdout);
 124         rx_conf.offloads = local_port_conf.rxmode.offloads;
 125         ret = rte_eth_rx_queue_setup(portid, 0, (uint16_t)ring_conf.rx_size,
 126                 rte_eth_dev_socket_id(portid), &rx_conf, mp);
 127         if (ret < 0)
 128                 rte_exit(EXIT_FAILURE,
 129                          "rte_eth_tx_queue_setup: err=%d, port=%u\n",
 130                          ret, portid);
 131
 132         /* init one TX queue */
 133         fflush(stdout);
 134         tx_conf.offloads = local_port_conf.txmode.offloads;
 135         ret = rte_eth_tx_queue_setup(portid, 0,
 136                 (uint16_t)ring_conf.tx_size, rte_eth_dev_socket_id(portid), &tx_conf);
 137         if (ret < 0)
 138                 rte_exit(EXIT_FAILURE,
 139                          "rte_eth_tx_queue_setup: err=%d, port=%u queue=%d\n",
 140                          ret, portid, 0);
 141
 142         /* Start device */
 143         ret = rte_eth_dev_start(portid);
 144         if (ret < 0)
 145                 rte_exit(EXIT_FAILURE,
 146                          "rte_pmd_port_start: err=%d, port=%u\n",
 147                          ret, portid);
 148
 149         printf("done: ");
 150
 151         /* get link status */
 152         rte_eth_link_get(portid, &link);
 153         if (link.link_status) {
 154                 printf(" Link Up - speed %u Mbps - %s\n",
 155                         (uint32_t) link.link_speed,
 156                         (link.link_duplex == ETH_LINK_FULL_DUPLEX) ?
 157                         ("full-duplex") : ("half-duplex\n"));
 158         } else {
 159                 printf(" Link Down\n");
 160         }
 161         rte_eth_promiscuous_enable(portid);
 162
 163         /* mark port as initialized */
 164         app_inited_port_mask |= 1u << portid;
 165
 166         return 0;
 167 }
 168
 169 static struct rte_sched_subport_params subport_params[MAX_SCHED_SUBPORTS] = {
 170         {
 171                 .tb_rate = 1250000000,
 172                 .tb_size = 1000000,
 173
 174                 .tc_rate = {1250000000, 1250000000, 1250000000, 1250000000},
 175                 .tc_period = 10,
 176         },
 177 };
 178
 179 static struct rte_sched_pipe_params pipe_profiles[RTE_SCHED_PIPE_PROFILES_PER_PORT] = {
 180         { /* Profile #0 */
 181                 .tb_rate = 305175,
 182                 .tb_size = 1000000,
 183
 184                 .tc_rate = {305175, 305175, 305175, 305175},
 185                 .tc_period = 40,
 186 #ifdef RTE_SCHED_SUBPORT_TC_OV
 187                 .tc_ov_weight = 1,
 188 #endif
 189
 190                 .wrr_weights = {1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1,  1, 1, 1, 1},
 191         },
 192 };
 193
 194 struct rte_sched_port_params port_params = {
 195         .name = "port_scheduler_0",
 196         .socket = 0, /* computed */
 197         .rate = 0, /* computed */
 198         .mtu = 6 + 6 + 4 + 4 + 2 + 1500,
 199         .frame_overhead = RTE_SCHED_FRAME_OVERHEAD_DEFAULT,
 200         .n_subports_per_port = 1,
 201         .n_pipes_per_subport = 4096,
 202         .qsize = {64, 64, 64, 64},
 203         .pipe_profiles = pipe_profiles,
 204         .n_pipe_profiles = sizeof(pipe_profiles) / sizeof(struct rte_sched_pipe_params),
 205
 206 #ifdef RTE_SCHED_RED
 207         .red_params = {
 208                 /* Traffic Class 0 Colors Green / Yellow / Red */
 209                 [0][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 210                 [0][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 211                 [0][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 212
 213                 /* Traffic Class 1 - Colors Green / Yellow / Red */
 214                 [1][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 215                 [1][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 216                 [1][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 217
 218                 /* Traffic Class 2 - Colors Green / Yellow / Red */
 219                 [2][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 220                 [2][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 221                 [2][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 222
 223                 /* Traffic Class 3 - Colors Green / Yellow / Red */
 224                 [3][0] = {.min_th = 48, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 225                 [3][1] = {.min_th = 40, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9},
 226                 [3][2] = {.min_th = 32, .max_th = 64, .maxp_inv = 10, .wq_log2 = 9}
 227         }
 228 #endif /* RTE_SCHED_RED */
 229 };
 230
 231 static struct rte_sched_port *
 232 app_init_sched_port(uint32_t portid, uint32_t socketid)
 233 {
 234         static char port_name[32]; /* static as referenced from global port_params*/
 235         struct rte_eth_link link;
 236         struct rte_sched_port *port = NULL;
 237         uint32_t pipe, subport;
 238         int err;
 239
 240         rte_eth_link_get(portid, &link);
 241
 242         port_params.socket = socketid;
 243         port_params.rate = (uint64_t) link.link_speed * 1000 * 1000 / 8;
 244         snprintf(port_name, sizeof(port_name), "port_%d", portid);
 245         port_params.name = port_name;
 246
 247         port = rte_sched_port_config(&port_params);
 248         if (port == NULL){
 249                 rte_exit(EXIT_FAILURE, "Unable to config sched port\n");
 250         }
 251
 252         for (subport = 0; subport < port_params.n_subports_per_port; subport ++) {
 253                 err = rte_sched_subport_config(port, subport, &subport_params[subport]);
 254                 if (err) {
 255                         rte_exit(EXIT_FAILURE, "Unable to config sched subport %u, err=%d\n",
 256                                         subport, err);
 257                 }
 258
 259                 for (pipe = 0; pipe < port_params.n_pipes_per_subport; pipe ++) {
 260                         if (app_pipe_to_profile[subport][pipe] != -1) {
 261                                 err = rte_sched_pipe_config(port, subport, pipe,
 262                                                 app_pipe_to_profile[subport][pipe]);
 263                                 if (err) {
 264                                         rte_exit(EXIT_FAILURE, "Unable to config sched pipe %u "
 265                                                         "for profile %d, err=%d\n", pipe,
 266                                                         app_pipe_to_profile[subport][pipe], err);
 267                                 }
 268                         }
 269                 }
 270         }
 271
 272         return port;
 273 }
 274
 275 static int
 276 app_load_cfg_profile(const char *profile)
 277 {
 278         if (profile == NULL)
 279                 return 0;
 280         struct rte_cfgfile *file = rte_cfgfile_load(profile, 0);
 281         if (file == NULL)
 282                 rte_exit(EXIT_FAILURE, "Cannot load configuration profile %s\n", profile);
 283
 284         cfg_load_port(file, &port_params);
 285         cfg_load_subport(file, subport_params);
 286         cfg_load_pipe(file, pipe_profiles);
 287
 288         rte_cfgfile_close(file);
 289
 290         return 0;
 291 }
 292
 293 int app_init(void)
 294 {
 295         uint32_t i;
 296         char ring_name[MAX_NAME_LEN];
 297         char pool_name[MAX_NAME_LEN];
 298
 299         if (rte_eth_dev_count_avail() == 0)
 300                 rte_exit(EXIT_FAILURE, "No Ethernet port - bye\n");
 301
 302         /* load configuration profile */
 303         if (app_load_cfg_profile(cfg_profile) != 0)
 304                 rte_exit(EXIT_FAILURE, "Invalid configuration profile\n");
 305
 306         /* Initialize each active flow */
 307         for(i = 0; i < nb_pfc; i++) {
 308                 uint32_t socket = rte_lcore_to_socket_id(qos_conf[i].rx_core);
 309                 struct rte_ring *ring;
 310
 311                 snprintf(ring_name, MAX_NAME_LEN, "ring-%u-%u", i, qos_conf[i].rx_core);
 312                 ring = rte_ring_lookup(ring_name);
 313                 if (ring == NULL)
 314                         qos_conf[i].rx_ring = rte_ring_create(ring_name, ring_conf.ring_size,
 315                                 socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 316                 else
 317                         qos_conf[i].rx_ring = ring;
 318
 319                 snprintf(ring_name, MAX_NAME_LEN, "ring-%u-%u", i, qos_conf[i].tx_core);
 320                 ring = rte_ring_lookup(ring_name);
 321                 if (ring == NULL)
 322                         qos_conf[i].tx_ring = rte_ring_create(ring_name, ring_conf.ring_size,
 323                                 socket, RING_F_SP_ENQ | RING_F_SC_DEQ);
 324                 else
 325                         qos_conf[i].tx_ring = ring;
 326
 327
 328                 /* create the mbuf pools for each RX Port */
 329                 snprintf(pool_name, MAX_NAME_LEN, "mbuf_pool%u", i);
 330                 qos_conf[i].mbuf_pool = rte_pktmbuf_pool_create(pool_name,
 331                         mp_size, burst_conf.rx_burst * 4, 0,
 332                         RTE_MBUF_DEFAULT_BUF_SIZE,
 333                         rte_eth_dev_socket_id(qos_conf[i].rx_port));
 334                 if (qos_conf[i].mbuf_pool == NULL)
 335                         rte_exit(EXIT_FAILURE, "Cannot init mbuf pool for socket %u\n", i);
 336
 337                 app_init_port(qos_conf[i].rx_port, qos_conf[i].mbuf_pool);
 338                 app_init_port(qos_conf[i].tx_port, qos_conf[i].mbuf_pool);
 339
 340                 qos_conf[i].sched_port = app_init_sched_port(qos_conf[i].tx_port, socket);
 341         }
 342
 343         RTE_LOG(INFO, APP, "time stamp clock running at %" PRIu64 " Hz\n",
 344                          rte_get_timer_hz());
 345
 346         RTE_LOG(INFO, APP, "Ring sizes: NIC RX = %u, Mempool = %d SW queue = %u,"
 347                          "NIC TX = %u\n", ring_conf.rx_size, mp_size, ring_conf.ring_size,
 348                          ring_conf.tx_size);
 349
 350         RTE_LOG(INFO, APP, "Burst sizes: RX read = %hu, RX write = %hu,\n"
 351                                                   "             Worker read/QoS enqueue = %hu,\n"
 352                                                   "             QoS dequeue = %hu, Worker write = %hu\n",
 353                 burst_conf.rx_burst, burst_conf.ring_burst, burst_conf.ring_burst,
 354                 burst_conf.qos_dequeue, burst_conf.tx_burst);
 355
 356         RTE_LOG(INFO, APP, "NIC thresholds RX (p = %hhu, h = %hhu, w = %hhu),"
 357                                  "TX (p = %hhu, h = %hhu, w = %hhu)\n",
 358                 rx_thresh.pthresh, rx_thresh.hthresh, rx_thresh.wthresh,
 359                 tx_thresh.pthresh, tx_thresh.hthresh, tx_thresh.wthresh);
 360
 361         return 0;
 362 }