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 <rte_ethdev_driver.h>
  10 #include <rte_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(pmd_softnic_logtype, pmd.net.softnic, 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
  97         return 0;
  98 }
  99
 100 static int
 101 pmd_dev_configure(struct rte_eth_dev *dev __rte_unused)
 102 {
 103         return 0;
 104 }
 105
 106 static int
 107 pmd_rx_queue_setup(struct rte_eth_dev *dev,
 108         uint16_t rx_queue_id,
 109         uint16_t nb_rx_desc,
 110         unsigned int socket_id __rte_unused,
 111         const struct rte_eth_rxconf *rx_conf __rte_unused,
 112         struct rte_mempool *mb_pool __rte_unused)
 113 {
 114         char name[NAME_SIZE];
 115         struct pmd_internals *p = dev->data->dev_private;
 116         struct softnic_swq *swq;
 117
 118         struct softnic_swq_params params = {
 119                 .size = nb_rx_desc,
 120         };
 121
 122         snprintf(name, sizeof(name), "RXQ%u", rx_queue_id);
 123
 124         swq = softnic_swq_create(p,
 125                 name,
 126                 &params);
 127         if (swq == NULL)
 128                 return -1;
 129
 130         dev->data->rx_queues[rx_queue_id] = swq->r;
 131         return 0;
 132 }
 133
 134 static int
 135 pmd_tx_queue_setup(struct rte_eth_dev *dev,
 136         uint16_t tx_queue_id,
 137         uint16_t nb_tx_desc,
 138         unsigned int socket_id __rte_unused,
 139         const struct rte_eth_txconf *tx_conf __rte_unused)
 140 {
 141         char name[NAME_SIZE];
 142         struct pmd_internals *p = dev->data->dev_private;
 143         struct softnic_swq *swq;
 144
 145         struct softnic_swq_params params = {
 146                 .size = nb_tx_desc,
 147         };
 148
 149         snprintf(name, sizeof(name), "TXQ%u", tx_queue_id);
 150
 151         swq = softnic_swq_create(p,
 152                 name,
 153                 &params);
 154         if (swq == NULL)
 155                 return -1;
 156
 157         dev->data->tx_queues[tx_queue_id] = swq->r;
 158         return 0;
 159 }
 160
 161 static int
 162 pmd_dev_start(struct rte_eth_dev *dev)
 163 {
 164         struct pmd_internals *p = dev->data->dev_private;
 165         int status;
 166
 167         /* Firmware */
 168         status = softnic_cli_script_process(p,
 169                 p->params.firmware,
 170                 conn_params_default.msg_in_len_max,
 171                 conn_params_default.msg_out_len_max);
 172         if (status)
 173                 return status;
 174
 175         /* Link UP */
 176         dev->data->dev_link.link_status = ETH_LINK_UP;
 177
 178         return 0;
 179 }
 180
 181 static void
 182 pmd_dev_stop(struct rte_eth_dev *dev)
 183 {
 184         struct pmd_internals *p = dev->data->dev_private;
 185
 186         /* Link DOWN */
 187         dev->data->dev_link.link_status = ETH_LINK_DOWN;
 188
 189         /* Firmware */
 190         softnic_pipeline_disable_all(p);
 191         softnic_pipeline_free(p);
 192         softnic_table_action_profile_free(p);
 193         softnic_port_in_action_profile_free(p);
 194         softnic_tap_free(p);
 195         softnic_tmgr_free(p);
 196         softnic_link_free(p);
 197         softnic_softnic_swq_free_keep_rxq_txq(p);
 198         softnic_mempool_free(p);
 199
 200         tm_hierarchy_free(p);
 201         softnic_mtr_free(p);
 202 }
 203
 204 static void
 205 pmd_free(struct pmd_internals *p)
 206 {
 207         if (p == NULL)
 208                 return;
 209
 210         if (p->params.conn_port)
 211                 softnic_conn_free(p->conn);
 212
 213         softnic_thread_free(p);
 214         softnic_pipeline_free(p);
 215         softnic_table_action_profile_free(p);
 216         softnic_port_in_action_profile_free(p);
 217         softnic_tap_free(p);
 218         softnic_tmgr_free(p);
 219         softnic_link_free(p);
 220         softnic_swq_free(p);
 221         softnic_mempool_free(p);
 222
 223         tm_hierarchy_free(p);
 224         softnic_mtr_free(p);
 225
 226         rte_free(p);
 227 }
 228
 229 static int
 230 pmd_dev_close(struct rte_eth_dev *dev)
 231 {
 232         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
 233                 return 0;
 234
 235         pmd_free(dev->data->dev_private);
 236         dev->data->dev_private = NULL; /* already freed */
 237         dev->data->mac_addrs = NULL; /* statically allocated */
 238         return 0;
 239 }
 240
 241 static int
 242 pmd_link_update(struct rte_eth_dev *dev __rte_unused,
 243         int wait_to_complete __rte_unused)
 244 {
 245         return 0;
 246 }
 247
 248 static int
 249 pmd_filter_ctrl(struct rte_eth_dev *dev __rte_unused,
 250                 enum rte_filter_type filter_type,
 251                 enum rte_filter_op filter_op,
 252                 void *arg)
 253 {
 254         if (filter_type == RTE_ETH_FILTER_GENERIC &&
 255                         filter_op == RTE_ETH_FILTER_GET) {
 256                 *(const void **)arg = &pmd_flow_ops;
 257                 return 0;
 258         }
 259
 260         return -ENOTSUP;
 261 }
 262
 263 static int
 264 pmd_tm_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
 265 {
 266         *(const struct rte_tm_ops **)arg = &pmd_tm_ops;
 267
 268         return 0;
 269 }
 270
 271 static int
 272 pmd_mtr_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
 273 {
 274         *(const struct rte_mtr_ops **)arg = &pmd_mtr_ops;
 275
 276         return 0;
 277 }
 278
 279 static const struct eth_dev_ops pmd_ops = {
 280         .dev_configure = pmd_dev_configure,
 281         .dev_start = pmd_dev_start,
 282         .dev_stop = pmd_dev_stop,
 283         .dev_close = pmd_dev_close,
 284         .link_update = pmd_link_update,
 285         .dev_infos_get = pmd_dev_infos_get,
 286         .rx_queue_setup = pmd_rx_queue_setup,
 287         .tx_queue_setup = pmd_tx_queue_setup,
 288         .filter_ctrl = pmd_filter_ctrl,
 289         .tm_ops_get = pmd_tm_ops_get,
 290         .mtr_ops_get = pmd_mtr_ops_get,
 291 };
 292
 293 static uint16_t
 294 pmd_rx_pkt_burst(void *rxq,
 295         struct rte_mbuf **rx_pkts,
 296         uint16_t nb_pkts)
 297 {
 298         return (uint16_t)rte_ring_sc_dequeue_burst(rxq,
 299                 (void **)rx_pkts,
 300                 nb_pkts,
 301                 NULL);
 302 }
 303
 304 static uint16_t
 305 pmd_tx_pkt_burst(void *txq,
 306         struct rte_mbuf **tx_pkts,
 307         uint16_t nb_pkts)
 308 {
 309         return (uint16_t)rte_ring_sp_enqueue_burst(txq,
 310                 (void **)tx_pkts,
 311                 nb_pkts,
 312                 NULL);
 313 }
 314
 315 static void *
 316 pmd_init(struct pmd_params *params)
 317 {
 318         struct pmd_internals *p;
 319         int status;
 320
 321         p = rte_zmalloc_socket(params->name,
 322                 sizeof(struct pmd_internals),
 323                 0,
 324                 params->cpu_id);
 325         if (p == NULL)
 326                 return NULL;
 327
 328         /* Params */
 329         memcpy(&p->params, params, sizeof(p->params));
 330
 331         /* Resources */
 332         tm_hierarchy_init(p);
 333         softnic_mtr_init(p);
 334
 335         softnic_mempool_init(p);
 336         softnic_swq_init(p);
 337         softnic_link_init(p);
 338         softnic_tmgr_init(p);
 339         softnic_tap_init(p);
 340         softnic_cryptodev_init(p);
 341         softnic_port_in_action_profile_init(p);
 342         softnic_table_action_profile_init(p);
 343         softnic_pipeline_init(p);
 344
 345         status = softnic_thread_init(p);
 346         if (status) {
 347                 rte_free(p);
 348                 return NULL;
 349         }
 350
 351         if (params->conn_port) {
 352                 struct softnic_conn_params conn_params;
 353
 354                 memcpy(&conn_params, &conn_params_default, sizeof(conn_params));
 355                 conn_params.port = p->params.conn_port;
 356                 conn_params.msg_handle_arg = p;
 357
 358                 p->conn = softnic_conn_init(&conn_params);
 359                 if (p->conn == NULL) {
 360                         softnic_thread_free(p);
 361                         rte_free(p);
 362                         return NULL;
 363                 }
 364         }
 365
 366         return p;
 367 }
 368
 369 static struct rte_ether_addr eth_addr = {
 370         .addr_bytes = {0},
 371 };
 372
 373 static int
 374 pmd_ethdev_register(struct rte_vdev_device *vdev,
 375         struct pmd_params *params,
 376         void *dev_private)
 377 {
 378         struct rte_eth_dev *dev;
 379
 380         /* Ethdev entry allocation */
 381         dev = rte_eth_dev_allocate(params->name);
 382         if (!dev)
 383                 return -ENOMEM;
 384
 385         /* dev */
 386         dev->rx_pkt_burst = pmd_rx_pkt_burst;
 387         dev->tx_pkt_burst = pmd_tx_pkt_burst;
 388         dev->tx_pkt_prepare = NULL;
 389         dev->dev_ops = &pmd_ops;
 390         dev->device = &vdev->device;
 391
 392         /* dev->data */
 393         dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
 394         dev->data->dev_private = dev_private;
 395         dev->data->dev_link.link_speed = ETH_SPEED_NUM_100G;
 396         dev->data->dev_link.link_duplex = ETH_LINK_FULL_DUPLEX;
 397         dev->data->dev_link.link_autoneg = ETH_LINK_FIXED;
 398         dev->data->dev_link.link_status = ETH_LINK_DOWN;
 399         dev->data->mac_addrs = &eth_addr;
 400         dev->data->promiscuous = 1;
 401         dev->data->numa_node = params->cpu_id;
 402
 403         rte_eth_dev_probing_finish(dev);
 404
 405         return 0;
 406 }
 407
 408 static int
 409 get_string(const char *key __rte_unused, const char *value, void *extra_args)
 410 {
 411         if (!value || !extra_args)
 412                 return -EINVAL;
 413
 414         *(char **)extra_args = strdup(value);
 415
 416         if (!*(char **)extra_args)
 417                 return -ENOMEM;
 418
 419         return 0;
 420 }
 421
 422 static int
 423 get_uint32(const char *key __rte_unused, const char *value, void *extra_args)
 424 {
 425         if (!value || !extra_args)
 426                 return -EINVAL;
 427
 428         *(uint32_t *)extra_args = strtoull(value, NULL, 0);
 429
 430         return 0;
 431 }
 432
 433 static int
 434 get_uint16(const char *key __rte_unused, const char *value, void *extra_args)
 435 {
 436         if (!value || !extra_args)
 437                 return -EINVAL;
 438
 439         *(uint16_t *)extra_args = strtoull(value, NULL, 0);
 440
 441         return 0;
 442 }
 443
 444 static int
 445 pmd_parse_args(struct pmd_params *p, const char *params)
 446 {
 447         struct rte_kvargs *kvlist;
 448         int ret = 0;
 449
 450         kvlist = rte_kvargs_parse(params, pmd_valid_args);
 451         if (kvlist == NULL)
 452                 return -EINVAL;
 453
 454         /* Set default values */
 455         memset(p, 0, sizeof(*p));
 456         p->firmware = SOFTNIC_FIRMWARE;
 457         p->cpu_id = SOFTNIC_CPU_ID;
 458         p->sc = SOFTNIC_SC;
 459         p->tm.n_queues = SOFTNIC_TM_N_QUEUES;
 460         p->tm.qsize[0] = SOFTNIC_TM_QUEUE_SIZE;
 461         p->tm.qsize[1] = SOFTNIC_TM_QUEUE_SIZE;
 462         p->tm.qsize[2] = SOFTNIC_TM_QUEUE_SIZE;
 463         p->tm.qsize[3] = SOFTNIC_TM_QUEUE_SIZE;
 464         p->tm.qsize[4] = SOFTNIC_TM_QUEUE_SIZE;
 465         p->tm.qsize[5] = SOFTNIC_TM_QUEUE_SIZE;
 466         p->tm.qsize[6] = SOFTNIC_TM_QUEUE_SIZE;
 467         p->tm.qsize[7] = SOFTNIC_TM_QUEUE_SIZE;
 468         p->tm.qsize[8] = SOFTNIC_TM_QUEUE_SIZE;
 469         p->tm.qsize[9] = SOFTNIC_TM_QUEUE_SIZE;
 470         p->tm.qsize[10] = SOFTNIC_TM_QUEUE_SIZE;
 471         p->tm.qsize[11] = SOFTNIC_TM_QUEUE_SIZE;
 472         p->tm.qsize[12] = SOFTNIC_TM_QUEUE_SIZE;
 473
 474         /* Firmware script (optional) */
 475         if (rte_kvargs_count(kvlist, PMD_PARAM_FIRMWARE) == 1) {
 476                 ret = rte_kvargs_process(kvlist, PMD_PARAM_FIRMWARE,
 477                         &get_string, &p->firmware);
 478                 if (ret < 0)
 479                         goto out_free;
 480         }
 481
 482         /* Connection listening port (optional) */
 483         if (rte_kvargs_count(kvlist, PMD_PARAM_CONN_PORT) == 1) {
 484                 ret = rte_kvargs_process(kvlist, PMD_PARAM_CONN_PORT,
 485                         &get_uint16, &p->conn_port);
 486                 if (ret < 0)
 487                         goto out_free;
 488         }
 489
 490         /* CPU ID (optional) */
 491         if (rte_kvargs_count(kvlist, PMD_PARAM_CPU_ID) == 1) {
 492                 ret = rte_kvargs_process(kvlist, PMD_PARAM_CPU_ID,
 493                         &get_uint32, &p->cpu_id);
 494                 if (ret < 0)
 495                         goto out_free;
 496         }
 497
 498         /* Service cores (optional) */
 499         if (rte_kvargs_count(kvlist, PMD_PARAM_SC) == 1) {
 500                 ret = rte_kvargs_process(kvlist, PMD_PARAM_SC,
 501                         &get_uint32, &p->sc);
 502                 if (ret < 0)
 503                         goto out_free;
 504         }
 505
 506         /* TM number of queues (optional) */
 507         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_N_QUEUES) == 1) {
 508                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_N_QUEUES,
 509                         &get_uint32, &p->tm.n_queues);
 510                 if (ret < 0)
 511                         goto out_free;
 512         }
 513
 514         /* TM queue size 0 .. 3 (optional) */
 515         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE0) == 1) {
 516                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE0,
 517                         &get_uint32, &p->tm.qsize[0]);
 518                 if (ret < 0)
 519                         goto out_free;
 520         }
 521
 522         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE1) == 1) {
 523                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE1,
 524                         &get_uint32, &p->tm.qsize[1]);
 525                 if (ret < 0)
 526                         goto out_free;
 527         }
 528
 529         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE2) == 1) {
 530                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE2,
 531                         &get_uint32, &p->tm.qsize[2]);
 532                 if (ret < 0)
 533                         goto out_free;
 534         }
 535
 536         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE3) == 1) {
 537                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE3,
 538                         &get_uint32, &p->tm.qsize[3]);
 539                 if (ret < 0)
 540                         goto out_free;
 541         }
 542
 543         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE4) == 1) {
 544                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE4,
 545                         &get_uint32, &p->tm.qsize[4]);
 546                 if (ret < 0)
 547                         goto out_free;
 548         }
 549
 550         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE5) == 1) {
 551                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE5,
 552                         &get_uint32, &p->tm.qsize[5]);
 553                 if (ret < 0)
 554                         goto out_free;
 555         }
 556
 557         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE6) == 1) {
 558                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE6,
 559                         &get_uint32, &p->tm.qsize[6]);
 560                 if (ret < 0)
 561                         goto out_free;
 562         }
 563
 564         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE7) == 1) {
 565                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE7,
 566                         &get_uint32, &p->tm.qsize[7]);
 567                 if (ret < 0)
 568                         goto out_free;
 569         }
 570         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE8) == 1) {
 571                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE8,
 572                         &get_uint32, &p->tm.qsize[8]);
 573                 if (ret < 0)
 574                         goto out_free;
 575         }
 576         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE9) == 1) {
 577                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE9,
 578                         &get_uint32, &p->tm.qsize[9]);
 579                 if (ret < 0)
 580                         goto out_free;
 581         }
 582
 583         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE10) == 1) {
 584                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE10,
 585                         &get_uint32, &p->tm.qsize[10]);
 586                 if (ret < 0)
 587                         goto out_free;
 588         }
 589
 590         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE11) == 1) {
 591                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE11,
 592                         &get_uint32, &p->tm.qsize[11]);
 593                 if (ret < 0)
 594                         goto out_free;
 595         }
 596
 597         if (rte_kvargs_count(kvlist, PMD_PARAM_TM_QSIZE12) == 1) {
 598                 ret = rte_kvargs_process(kvlist, PMD_PARAM_TM_QSIZE12,
 599                         &get_uint32, &p->tm.qsize[12]);
 600                 if (ret < 0)
 601                         goto out_free;
 602         }
 603
 604 out_free:
 605         rte_kvargs_free(kvlist);
 606         return ret;
 607 }
 608
 609 static int
 610 pmd_probe(struct rte_vdev_device *vdev)
 611 {
 612         struct pmd_params p;
 613         const char *params;
 614         int status = 0;
 615
 616         void *dev_private;
 617         const char *name = rte_vdev_device_name(vdev);
 618
 619         PMD_LOG(INFO, "Probing device \"%s\"", name);
 620
 621         /* Parse input arguments */
 622         params = rte_vdev_device_args(vdev);
 623         if (!params)
 624                 return -EINVAL;
 625
 626         status = pmd_parse_args(&p, params);
 627         if (status)
 628                 return status;
 629
 630         p.name = name;
 631
 632         /* Allocate and initialize soft ethdev private data */
 633         dev_private = pmd_init(&p);
 634         if (dev_private == NULL)
 635                 return -ENOMEM;
 636
 637         /* Register soft ethdev */
 638         PMD_LOG(INFO, "Creating soft ethdev \"%s\"", p.name);
 639
 640         status = pmd_ethdev_register(vdev, &p, dev_private);
 641         if (status) {
 642                 pmd_free(dev_private);
 643                 return status;
 644         }
 645
 646         return 0;
 647 }
 648
 649 static int
 650 pmd_remove(struct rte_vdev_device *vdev)
 651 {
 652         struct rte_eth_dev *dev = NULL;
 653
 654         if (!vdev)
 655                 return -EINVAL;
 656
 657         PMD_LOG(INFO, "Removing device \"%s\"", rte_vdev_device_name(vdev));
 658
 659         /* Find the ethdev entry */
 660         dev = rte_eth_dev_allocated(rte_vdev_device_name(vdev));
 661         if (dev == NULL)
 662                 return 0; /* port already released */
 663
 664         pmd_dev_close(dev);
 665         rte_eth_dev_release_port(dev);
 666
 667         return 0;
 668 }
 669
 670 static struct rte_vdev_driver pmd_softnic_drv = {
 671         .probe = pmd_probe,
 672         .remove = pmd_remove,
 673 };
 674
 675 RTE_PMD_REGISTER_VDEV(net_softnic, pmd_softnic_drv);
 676 RTE_PMD_REGISTER_PARAM_STRING(net_softnic,
 677         PMD_PARAM_FIRMWARE "=<string> "
 678         PMD_PARAM_CONN_PORT "=<uint16> "
 679         PMD_PARAM_CPU_ID "=<uint32> "
 680         PMD_PARAM_TM_N_QUEUES "=<uint32> "
 681         PMD_PARAM_TM_QSIZE0 "=<uint32> "
 682         PMD_PARAM_TM_QSIZE1 "=<uint32> "
 683         PMD_PARAM_TM_QSIZE2 "=<uint32> "
 684         PMD_PARAM_TM_QSIZE3 "=<uint32>"
 685         PMD_PARAM_TM_QSIZE4 "=<uint32> "
 686         PMD_PARAM_TM_QSIZE5 "=<uint32> "
 687         PMD_PARAM_TM_QSIZE6 "=<uint32> "
 688         PMD_PARAM_TM_QSIZE7 "=<uint32> "
 689         PMD_PARAM_TM_QSIZE8 "=<uint32> "
 690         PMD_PARAM_TM_QSIZE9 "=<uint32> "
 691         PMD_PARAM_TM_QSIZE10 "=<uint32> "
 692         PMD_PARAM_TM_QSIZE11 "=<uint32>"
 693         PMD_PARAM_TM_QSIZE12 "=<uint32>"
 694 );
 695
 696 int
 697 rte_pmd_softnic_manage(uint16_t port_id)
 698 {
 699         struct rte_eth_dev *dev = &rte_eth_devices[port_id];
 700         struct pmd_internals *softnic;
 701
 702 #ifdef RTE_LIBRTE_ETHDEV_DEBUG
 703         RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, 0);
 704 #endif
 705
 706         softnic = dev->data->dev_private;
 707
 708         softnic_conn_poll_for_conn(softnic->conn);
 709
 710         softnic_conn_poll_for_msg(softnic->conn);
 711
 712         return 0;
 713 }