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