drivers/net/softnic/rte_eth_softnic.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2017 Intel Corporation
   3  */
   4
   5 #include <stdint.h>
   6 #include <stdlib.h>
   7 #include <string.h>
   8
   9 #include <ethdev_driver.h>
  10 #include <ethdev_vdev.h>
  11 #include <rte_malloc.h>
  12 #include <rte_bus_vdev.h>
  13 #include <rte_kvargs.h>
  14 #include <rte_errno.h>
  15 #include <rte_ring.h>
  16 #include <rte_tm_driver.h>
  17 #include <rte_mtr_driver.h>
  18
  19 #include "rte_eth_softnic.h"
  20 #include "rte_eth_softnic_internals.h"
  21
  22 #define PMD_PARAM_FIRMWARE                                 "firmware"
  23 #define PMD_PARAM_CONN_PORT                                "conn_port"
  24 #define PMD_PARAM_CPU_ID                                   "cpu_id"
  25 #define PMD_PARAM_SC                                       "sc"
  26 #define PMD_PARAM_TM_N_QUEUES                              "tm_n_queues"
  27 #define PMD_PARAM_TM_QSIZE0                                "tm_qsize0"
  28 #define PMD_PARAM_TM_QSIZE1                                "tm_qsize1"
  29 #define PMD_PARAM_TM_QSIZE2                                "tm_qsize2"
  30 #define PMD_PARAM_TM_QSIZE3                                "tm_qsize3"
  31 #define PMD_PARAM_TM_QSIZE4                                "tm_qsize4"
  32 #define PMD_PARAM_TM_QSIZE5                                "tm_qsize5"
  33 #define PMD_PARAM_TM_QSIZE6                                "tm_qsize6"
  34 #define PMD_PARAM_TM_QSIZE7                                "tm_qsize7"
  35 #define PMD_PARAM_TM_QSIZE8                                "tm_qsize8"
  36 #define PMD_PARAM_TM_QSIZE9                                "tm_qsize9"
  37 #define PMD_PARAM_TM_QSIZE10                               "tm_qsize10"
  38 #define PMD_PARAM_TM_QSIZE11                               "tm_qsize11"
  39 #define PMD_PARAM_TM_QSIZE12                               "tm_qsize12"
  40
  41
  42 static const char * const pmd_valid_args[] = {
  43         PMD_PARAM_FIRMWARE,
  44         PMD_PARAM_CONN_PORT,
  45         PMD_PARAM_CPU_ID,
  46         PMD_PARAM_SC,
  47         PMD_PARAM_TM_N_QUEUES,
  48         PMD_PARAM_TM_QSIZE0,
  49         PMD_PARAM_TM_QSIZE1,
  50         PMD_PARAM_TM_QSIZE2,
  51         PMD_PARAM_TM_QSIZE3,
  52         PMD_PARAM_TM_QSIZE4,
  53         PMD_PARAM_TM_QSIZE5,
  54         PMD_PARAM_TM_QSIZE6,
  55         PMD_PARAM_TM_QSIZE7,
  56         PMD_PARAM_TM_QSIZE8,
  57         PMD_PARAM_TM_QSIZE9,
  58         PMD_PARAM_TM_QSIZE10,
  59         PMD_PARAM_TM_QSIZE11,
  60         PMD_PARAM_TM_QSIZE12,
  61         NULL
  62 };
  63
  64 static const char welcome[] =
  65         "\n"
  66         "Welcome to Soft NIC!\n"
  67         "\n";
  68
  69 static const char prompt[] = "softnic> ";
  70
  71 static const struct softnic_conn_params conn_params_default = {
  72         .welcome = welcome,
  73         .prompt = prompt,
  74         .addr = "0.0.0.0",
  75         .port = 0,
  76         .buf_size = 1024 * 1024,
  77         .msg_in_len_max = 1024,
  78         .msg_out_len_max = 1024 * 1024,
  79         .msg_handle = softnic_cli_process,
  80         .msg_handle_arg = NULL,
  81 };
  82
  83 RTE_LOG_REGISTER_DEFAULT(pmd_softnic_logtype, NOTICE);
  84
  85 #define PMD_LOG(level, fmt, args...) \
  86         rte_log(RTE_LOG_ ## level, pmd_softnic_logtype, \
  87                 "%s(): " fmt "\n", __func__, ##args)
  88
  89 static int
  90 pmd_dev_infos_get(struct rte_eth_dev *dev __rte_unused,
  91         struct rte_eth_dev_info *dev_info)
  92 {
  93         dev_info->max_rx_pktlen = UINT32_MAX;
  94         dev_info->max_rx_queues = UINT16_MAX;
  95         dev_info->max_tx_queues = UINT16_MAX;
  96         dev_info->dev_capa &= ~RTE_ETH_DEV_CAPA_FLOW_RULE_KEEP;
  97
  98         return 0;
  99 }
 100
 101 static int
 102 pmd_dev_configure(struct rte_eth_dev *dev __rte_unused)
 103 {
 104         return 0;
 105 }
 106
 107 static int
 108 pmd_rx_queue_setup(struct rte_eth_dev *dev,
 109         uint16_t rx_queue_id,
 110         uint16_t nb_rx_desc,
 111         unsigned int socket_id __rte_unused,
 112         const struct rte_eth_rxconf *rx_conf __rte_unused,
 113         struct rte_mempool *mb_pool __rte_unused)
 114 {
 115         char name[NAME_SIZE];
 116         struct pmd_internals *p = dev->data->dev_private;
 117         struct softnic_swq *swq;
 118
 119         struct softnic_swq_params params = {
 120                 .size = nb_rx_desc,
 121         };
 122
 123         snprintf(name, sizeof(name), "RXQ%u", rx_queue_id);
 124
 125         swq = softnic_swq_create(p,
 126                 name,
 127                 &params);
 128         if (swq == NULL)
 129                 return -1;
 130
 131         dev->data->rx_queues[rx_queue_id] = swq->r;
 132         return 0;
 133 }
 134
 135 static int
 136 pmd_tx_queue_setup(struct rte_eth_dev *dev,
 137         uint16_t tx_queue_id,
 138         uint16_t nb_tx_desc,
 139         unsigned int socket_id __rte_unused,
 140         const struct rte_eth_txconf *tx_conf __rte_unused)
 141 {
 142         char name[NAME_SIZE];
 143         struct pmd_internals *p = dev->data->dev_private;
 144         struct softnic_swq *swq;
 145
 146         struct softnic_swq_params params = {
 147                 .size = nb_tx_desc,
 148         };
 149
 150         snprintf(name, sizeof(name), "TXQ%u", tx_queue_id);
 151
 152         swq = softnic_swq_create(p,
 153                 name,
 154                 &params);
 155         if (swq == NULL)
 156                 return -1;
 157
 158         dev->data->tx_queues[tx_queue_id] = swq->r;
 159         return 0;
 160 }
 161
 162 static int
 163 pmd_dev_start(struct rte_eth_dev *dev)
 164 {
 165         struct pmd_internals *p = dev->data->dev_private;
 166         int status;
 167
 168         /* Firmware */
 169         status = softnic_cli_script_process(p,
 170                 p->params.firmware,
 171                 conn_params_default.msg_in_len_max,
 172                 conn_params_default.msg_out_len_max);
 173         if (status)
 174                 return status;
 175
 176         /* Link UP */
 177         dev->data->dev_link.link_status = RTE_ETH_LINK_UP;
 178
 179         return 0;
 180 }
 181
 182 static int
 183 pmd_dev_stop(struct rte_eth_dev *dev)
 184 {
 185         struct pmd_internals *p = dev->data->dev_private;
 186
 187         /* Link DOWN */
 188         dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
 189
 190         /* Firmware */
 191         softnic_pipeline_disable_all(p);
 192         softnic_pipeline_free(p);
 193         softnic_table_action_profile_free(p);
 194         softnic_port_in_action_profile_free(p);
 195         softnic_tap_free(p);
 196         softnic_tmgr_free(p);
 197         softnic_link_free(p);
 198         softnic_softnic_swq_free_keep_rxq_txq(p);
 199         softnic_mempool_free(p);
 200
 201         tm_hierarchy_free(p);
 202         softnic_mtr_free(p);
 203
 204         return 0;
 205 }
 206
 207 static void
 208 pmd_free(struct pmd_internals *p)
 209 {
 210         if (p == NULL)
 211                 return;
 212
 213         if (p->params.conn_port)
 214                 softnic_conn_free(p->conn);
 215
 216         softnic_thread_free(p);
 217         softnic_pipeline_free(p);
 218         softnic_table_action_profile_free(p);
 219         softnic_port_in_action_profile_free(p);
 220         softnic_tap_free(p);
 221         softnic_tmgr_free(p);
 222         softnic_link_free(p);
 223         softnic_swq_free(p);
 224         softnic_mempool_free(p);
 225
 226         tm_hierarchy_free(p);
 227         softnic_mtr_free(p);
 228
 229         rte_free(p);
 230 }
 231
 232 static int
 233 pmd_dev_close(struct rte_eth_dev *dev)
 234 {
 235         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 236                 return 0;
 237
 238         pmd_free(dev->data->dev_private);
 239         dev->data->dev_private = NULL; /* already freed */
 240         dev->data->mac_addrs = NULL; /* statically allocated */
 241         return 0;
 242 }
 243
 244 static int
 245 pmd_link_update(struct rte_eth_dev *dev __rte_unused,
 246         int wait_to_complete __rte_unused)
 247 {
 248         return 0;
 249 }
 250
 251 static int
 252 pmd_flow_ops_get(struct rte_eth_dev *dev __rte_unused,
 253                  const struct rte_flow_ops **ops)
 254 {
 255         *ops = &pmd_flow_ops;
 256         return 0;
 257 }
 258
 259 static int
 260 pmd_tm_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
 261 {
 262         *(const struct rte_tm_ops **)arg = &pmd_tm_ops;
 263
 264         return 0;
 265 }
 266
 267 static int
 268 pmd_mtr_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
 269 {
 270         *(const struct rte_mtr_ops **)arg = &pmd_mtr_ops;
 271
 272         return 0;
 273 }
 274
 275 static const struct eth_dev_ops pmd_ops = {
 276         .dev_configure = pmd_dev_configure,
 277         .dev_start = pmd_dev_start,
 278         .dev_stop = pmd_dev_stop,
 279         .dev_close = pmd_dev_close,
 280         .link_update = pmd_link_update,
 281         .dev_infos_get = pmd_dev_infos_get,
 282         .rx_queue_setup = pmd_rx_queue_setup,
 283         .tx_queue_setup = pmd_tx_queue_setup,
 284         .flow_ops_get = pmd_flow_ops_get,
 285         .tm_ops_get = pmd_tm_ops_get,
 286         .mtr_ops_get = pmd_mtr_ops_get,
 287 };
 288
 289 static uint16_t
 290 pmd_rx_pkt_burst(void *rxq,
 291         struct rte_mbuf **rx_pkts,
 292         uint16_t nb_pkts)
 293 {
 294         return (uint16_t)rte_ring_sc_dequeue_burst(rxq,
 295                 (void **)rx_pkts,
 296                 nb_pkts,
 297                 NULL);
 298 }
 299
 300 static uint16_t
 301 pmd_tx_pkt_burst(void *txq,
 302         struct rte_mbuf **tx_pkts,
 303         uint16_t nb_pkts)
 304 {
 305         return (uint16_t)rte_ring_sp_enqueue_burst(txq,
 306                 (void **)tx_pkts,
 307                 nb_pkts,
 308                 NULL);
 309 }
 310
 311 static void *
 312 pmd_init(struct pmd_params *params)
 313 {
 314         struct pmd_internals *p;
 315         int status;
 316
 317         p = rte_zmalloc_socket(params->name,
 318                 sizeof(struct pmd_internals),
 319                 0,
 320                 params->cpu_id);
 321         if (p == NULL)
 322                 return NULL;
 323
 324         /* Params */
 325         memcpy(&p->params, params, sizeof(p->params));
 326
 327         /* Resources */
 328         tm_hierarchy_init(p);
 329         softnic_mtr_init(p);
 330
 331         softnic_mempool_init(p);
 332         softnic_swq_init(p);
 333         softnic_link_init(p);
 334         softnic_tmgr_init(p);
 335         softnic_tap_init(p);
 336         softnic_cryptodev_init(p);
 337         softnic_port_in_action_profile_init(p);
 338         softnic_table_action_profile_init(p);
 339         softnic_pipeline_init(p);
 340
 341         status = softnic_thread_init(p);
 342         if (status) {
 343                 rte_free(p);
 344                 return NULL;
 345         }
 346
 347         if (params->conn_port) {
 348                 struct softnic_conn_params conn_params;
 349
 350                 memcpy(&conn_params, &conn_params_default, sizeof(conn_params));
 351                 conn_params.port = p->params.conn_port;
 352                 conn_params.msg_handle_arg = p;
 353
 354                 p->conn = softnic_conn_init(&conn_params);
 355                 if (p->conn == NULL) {
 356                         softnic_thread_free(p);
 357                         rte_free(p);
 358                         return NULL;
 359                 }
 360         }
 361
 362         return p;
 363 }
 364
 365 static struct rte_ether_addr eth_addr = {
 366         .addr_bytes = {0},
 367 };
 368
 369 static int
 370 pmd_ethdev_register(struct rte_vdev_device *vdev,
 371         struct pmd_params *params,
 372         void *dev_private)
 373 {
 374         struct rte_eth_dev *dev;
 375
 376         /* Ethdev entry allocation */
 377         dev = rte_eth_dev_allocate(params->name);
 378         if (!dev)
 379                 return -ENOMEM;
 380
 381         /* dev */
 382         dev->rx_pkt_burst = pmd_rx_pkt_burst;
 383         dev->tx_pkt_burst = pmd_tx_pkt_burst;
 384         dev->tx_pkt_prepare = NULL;
 385         dev->dev_ops = &pmd_ops;
 386         dev->device = &vdev->device;
 387
 388         /* dev->data */
 389         dev->data->dev_private = dev_private;
 390         dev->data->dev_link.link_speed = RTE_ETH_SPEED_NUM_100G;
 391         dev->data->dev_link.link_duplex = RTE_ETH_LINK_FULL_DUPLEX;
 392         dev->data->dev_link.link_autoneg = RTE_ETH_LINK_FIXED;
 393         dev->data->dev_link.link_status = RTE_ETH_LINK_DOWN;
 394         dev->data->mac_addrs = &eth_addr;
 395         dev->data->promiscuous = 1;
 396         dev->data->numa_node = params->cpu_id;
 397
 398         rte_eth_dev_probing_finish(dev);
 399
 400         return 0;
 401 }
 402
 403 static int
 404 get_string(const char *key __rte_unused, const char *value, void *extra_args)
 405 {
 406         if (!value || !extra_args)
 407                 return -EINVAL;
 408
 409         *(char **)extra_args = strdup(value);
 410
 411         if (!*(char **)extra_args)
 412                 return -ENOMEM;
 413
 414         return 0;
 415 }
 416
 417 static int
 418 get_uint32(const char *key __rte_unused, const char *value, void *extra_args)
 419 {
 420         if (!value || !extra_args)
 421                 return -EINVAL;
 422
 423         *(uint32_t *)extra_args = strtoull(value, NULL, 0);
 424
 425         return 0;
 426 }
 427
 428 static int
 429 get_uint16(const char *key __rte_unused, const char *value, void *extra_args)
 430 {
 431         if (!value || !extra_args)
 432                 return -EINVAL;
 433
 434         *(uint16_t *)extra_args = strtoull(value, NULL, 0);
 435
 436         return 0;
 437 }
 438
 439 static int
 440 pmd_parse_args(struct pmd_params *p, const char *params)
 441 {
 442         struct rte_kvargs *kvlist;
 443         int ret = 0;
 444         char *firmware = NULL;
 445
 446         kvlist = rte_kvargs_parse(params, pmd_valid_args);
 447         if (kvlist == NULL)
 448                 return -EINVAL;
 449
 450         /* Set default values */
 451         memset(p, 0, sizeof(*p));
 452         if (rte_strscpy(p->firmware, SOFTNIC_FIRMWARE,
 453                         sizeof(p->firmware)) < 0) {
 454                 PMD_LOG(WARNING,
 455                         "\"%s\": firmware path should be shorter than %zu",
 456                         SOFTNIC_FIRMWARE, sizeof(p->firmware));
 457                 ret = -EINVAL;
 458                 goto out_free;
 459         }
 460         p->cpu_id = SOFTNIC_CPU_ID;
 461         p->sc = SOFTNIC_SC;
 462         p->tm.n_queues = SOFTNIC_TM_N_QUEUES;
 463         p->tm.qsize[0] = SOFTNIC_TM_QUEUE_SIZE;
 464         p->tm.qsize[1] = SOFTNIC_TM_QUEUE_SIZE;
 465         p->tm.qsize[2] = SOFTNIC_TM_QUEUE_SIZE;
 466         p->tm.qsize[3] = SOFTNIC_TM_QUEUE_SIZE;
 467         p->tm.qsize[4] = SOFTNIC_TM_QUEUE_SIZE;
 468         p->tm.qsize[5] = SOFTNIC_TM_QUEUE_SIZE;
 469         p->tm.qsize[6] = SOFTNIC_TM_QUEUE_SIZE;
 470         p->tm.qsize[7] = SOFTNIC_TM_QUEUE_SIZE;
 471         p->tm.qsize[8] = SOFTNIC_TM_QUEUE_SIZE;
 472         p->tm.qsize[9] = SOFTNIC_TM_QUEUE_SIZE;
 473         p->tm.qsize[10] = SOFTNIC_TM_QUEUE_SIZE;
 474         p->tm.qsize[11] = SOFTNIC_TM_QUEUE_SIZE;
 475         p->tm.qsize[12] = SOFTNIC_TM_QUEUE_SIZE;
 476
 477         /* Firmware script (optional) */
 478         if (rte_kvargs_count(kvlist, PMD_PARAM_FIRMWARE) == 1) {
 479                 ret = rte_kvargs_process(kvlist, PMD_PARAM_FIRMWARE,
 480                         &get_string, &firmware);
 481                 if (ret < 0)
 482                         goto out_free;
 483
 484                 if (rte_strscpy(p->firmware, firmware,
 485                                 sizeof(p->firmware)) < 0) {
 486                         PMD_LOG(WARNING,
 487                                 "\"%s\": "
 488                                 "firmware path should be shorter than %zu",
 489                                 firmware, sizeof(p->firmware));
 490                         free(firmware);
 491                         ret = -EINVAL;
 492                         goto out_free;
 493                 }
 494                 free(firmware);
 495         }
 496         /* Connection listening port (optional) */
 497         if (rte_kvargs_count(kvlist, PMD_PARAM_CONN_PORT) == 1) {
 498                 ret = rte_kvargs_process(kvlist, PMD_PARAM_CONN_PORT,
 499                         &get_uint16, &p->conn_port);
 500                 if (ret < 0)
 501                         goto out_free;
 502         }
 503
 504         /* CPU ID (optional) */
 505         if (rte_kvargs_count(kvlist, PMD_PARAM_CPU_ID) == 1) {
 506                 ret = rte_kvargs_process(kvlist, PMD_PARAM_CPU_ID,
 507                         &get_uint32, &p->cpu_id);
 508                 if (ret < 0)
 509                         goto out_free;
 510         }
 511
 512         /* Service cores (optional) */
 513         if (rte_kvargs_count(kvlist, PMD_PARAM_SC) == 1) {
 514                 ret = rte_kvargs_process(kvlist, PMD_PARAM_SC,
 515                         &get_uint32, &p->sc);
 516                 if (ret < 0)
 517                         goto out_free;
 518         }
 519
 520         /* TM number of queues (optional) */
 521         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_N_QUEUES) == 1) {
 522                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_N_QUEUES,
 523                         &get_uint32, &p->tm.n_queues);
 524                 if (ret < 0)
 525                         goto out_free;
 526         }
 527
 528         /* TM queue size 0 .. 3 (optional) */
 529         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE0) == 1) {
 530                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE0,
 531                         &get_uint32, &p->tm.qsize[0]);
 532                 if (ret < 0)
 533                         goto out_free;
 534         }
 535
 536         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE1) == 1) {
 537                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE1,
 538                         &get_uint32, &p->tm.qsize[1]);
 539                 if (ret < 0)
 540                         goto out_free;
 541         }
 542
 543         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE2) == 1) {
 544                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE2,
 545                         &get_uint32, &p->tm.qsize[2]);
 546                 if (ret < 0)
 547                         goto out_free;
 548         }
 549
 550         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE3) == 1) {
 551                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE3,
 552                         &get_uint32, &p->tm.qsize[3]);
 553                 if (ret < 0)
 554                         goto out_free;
 555         }
 556
 557         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE4) == 1) {
 558                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE4,
 559                         &get_uint32, &p->tm.qsize[4]);
 560                 if (ret < 0)
 561                         goto out_free;
 562         }
 563
 564         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE5) == 1) {
 565                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE5,
 566                         &get_uint32, &p->tm.qsize[5]);
 567                 if (ret < 0)
 568                         goto out_free;
 569         }
 570
 571         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE6) == 1) {
 572                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE6,
 573                         &get_uint32, &p->tm.qsize[6]);
 574                 if (ret < 0)
 575                         goto out_free;
 576         }
 577
 578         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE7) == 1) {
 579                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE7,
 580                         &get_uint32, &p->tm.qsize[7]);
 581                 if (ret < 0)
 582                         goto out_free;
 583         }
 584         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE8) == 1) {
 585                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE8,
 586                         &get_uint32, &p->tm.qsize[8]);
 587                 if (ret < 0)
 588                         goto out_free;
 589         }
 590         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE9) == 1) {
 591                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE9,
 592                         &get_uint32, &p->tm.qsize[9]);
 593                 if (ret < 0)
 594                         goto out_free;
 595         }
 596
 597         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE10) == 1) {
 598                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE10,
 599                         &get_uint32, &p->tm.qsize[10]);
 600                 if (ret < 0)
 601                         goto out_free;
 602         }
 603
 604         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE11) == 1) {
 605                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE11,
 606                         &get_uint32, &p->tm.qsize[11]);
 607                 if (ret < 0)
 608                         goto out_free;
 609         }
 610
 611         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE12) == 1) {
 612                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE12,
 613                         &get_uint32, &p->tm.qsize[12]);
 614                 if (ret < 0)
 615                         goto out_free;
 616         }
 617
 618 out_free:
 619         rte_kvargs_free(kvlist);
 620         return ret;
 621 }
 622
 623 static int
 624 pmd_probe(struct rte_vdev_device *vdev)
 625 {
 626         struct pmd_params p;
 627         const char *params;
 628         int status = 0;
 629
 630         void *dev_private;
 631         const char *name = rte_vdev_device_name(vdev);
 632
 633         PMD_LOG(INFO, "Probing device \"%s\"", name);
 634
 635         /* Parse input arguments */
 636         params = rte_vdev_device_args(vdev);
 637         if (!params)
 638                 return -EINVAL;
 639
 640         status = pmd_parse_args(&p, params);
 641         if (status)
 642                 return status;
 643
 644         if (rte_strscpy(p.name, name, sizeof(p.name)) < 0) {
 645                 PMD_LOG(WARNING,
 646                         "\"%s\": device name should be shorter than %zu",
 647                         name, sizeof(p.name));
 648                 return -EINVAL;
 649         }
 650
 651         /* Allocate and initialize soft ethdev private data */
 652         dev_private = pmd_init(&p);
 653         if (dev_private == NULL)
 654                 return -ENOMEM;
 655
 656         /* Register soft ethdev */
 657         PMD_LOG(INFO, "Creating soft ethdev \"%s\"", p.name);
 658
 659         status = pmd_ethdev_register(vdev, &p, dev_private);
 660         if (status) {
 661                 pmd_free(dev_private);
 662                 return status;
 663         }
 664
 665         return 0;
 666 }
 667
 668 static int
 669 pmd_remove(struct rte_vdev_device *vdev)
 670 {
 671         struct rte_eth_dev *dev = NULL;
 672
 673         if (!vdev)
 674                 return -EINVAL;
 675
 676         PMD_LOG(INFO, "Removing device \"%s\"", rte_vdev_device_name(vdev));
 677
 678         /* Find the ethdev entry */
 679         dev = rte_eth_dev_allocated(rte_vdev_device_name(vdev));
 680         if (dev == NULL)
 681                 return 0; /* port already released */
 682
 683         pmd_dev_close(dev);
 684         rte_eth_dev_release_port(dev);
 685
 686         return 0;
 687 }
 688
 689 static struct rte_vdev_driver pmd_softnic_drv = {
 690         .probe = pmd_probe,
 691         .remove = pmd_remove,
 692 };
 693
 694 RTE_PMD_REGISTER_VDEV(net_softnic, pmd_softnic_drv);
 695 RTE_PMD_REGISTER_PARAM_STRING(net_softnic,
 696         PMD_PARAM_FIRMWARE "=<string> "
 697         PMD_PARAM_CONN_PORT "=<uint16> "
 698         PMD_PARAM_CPU_ID "=<uint32> "
 699         PMD_PARAM_TM_N_QUEUES "=<uint32> "
 700         PMD_PARAM_TM_QSIZE0 "=<uint32> "
 701         PMD_PARAM_TM_QSIZE1 "=<uint32> "
 702         PMD_PARAM_TM_QSIZE2 "=<uint32> "
 703         PMD_PARAM_TM_QSIZE3 "=<uint32>"
 704         PMD_PARAM_TM_QSIZE4 "=<uint32> "
 705         PMD_PARAM_TM_QSIZE5 "=<uint32> "
 706         PMD_PARAM_TM_QSIZE6 "=<uint32> "
 707         PMD_PARAM_TM_QSIZE7 "=<uint32> "
 708         PMD_PARAM_TM_QSIZE8 "=<uint32> "
 709         PMD_PARAM_TM_QSIZE9 "=<uint32> "
 710         PMD_PARAM_TM_QSIZE10 "=<uint32> "
 711         PMD_PARAM_TM_QSIZE11 "=<uint32>"
 712         PMD_PARAM_TM_QSIZE12 "=<uint32>"
 713 );
 714
 715 int
 716 rte_pmd_softnic_manage(uint16_t port_id)
 717 {
 718         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 719         struct pmd_internals *softnic;
 720
 721 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
 722         RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
 723 #endif
 724
 725         softnic = dev->data->dev_private;
 726
 727         softnic_conn_poll_for_conn(softnic->conn);
 728
 729         softnic_conn_poll_for_msg(softnic->conn);
 730
 731         return 0;
 732 }