drivers/net/octeontx/octeontx_ethdev.c

   1 /*
   2  *   BSD LICENSE
   3  *
   4  *   Copyright (C) Cavium Inc. 2017. All rights reserved.
   5  *
   6  *   Redistribution and use in source and binary forms, with or without
   7  *   modification, are permitted provided that the following conditions
   8  *   are met:
   9  *
  10  *     * Redistributions of source code must retain the above copyright
  11  *       notice, this list of conditions and the following disclaimer.
  12  *     * Redistributions in binary form must reproduce the above copyright
  13  *       notice, this list of conditions and the following disclaimer in
  14  *       the documentation and/or other materials provided with the
  15  *       distribution.
  16  *     * Neither the name of Cavium networks nor the names of its
  17  *       contributors may be used to endorse or promote products derived
  18  *       from this software without specific prior written permission.
  19  *
  20  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  21  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  22  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  23  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  24  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  25  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  26  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  27  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  28  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  29  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  30  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31  */
  32 #include <stdio.h>
  33 #include <stdarg.h>
  34 #include <stdbool.h>
  35 #include <stdint.h>
  36 #include <string.h>
  37 #include <unistd.h>
  38
  39 #include <rte_alarm.h>
  40 #include <rte_branch_prediction.h>
  41 #include <rte_debug.h>
  42 #include <rte_devargs.h>
  43 #include <rte_dev.h>
  44 #include <rte_kvargs.h>
  45 #include <rte_malloc.h>
  46 #include <rte_prefetch.h>
  47 #include <rte_vdev.h>
  48
  49 #include "octeontx_ethdev.h"
  50 #include "octeontx_logs.h"
  51
  52 struct octeontx_vdev_init_params {
  53         uint8_t nr_port;
  54 };
  55
  56 enum octeontx_link_speed {
  57         OCTEONTX_LINK_SPEED_SGMII,
  58         OCTEONTX_LINK_SPEED_XAUI,
  59         OCTEONTX_LINK_SPEED_RXAUI,
  60         OCTEONTX_LINK_SPEED_10G_R,
  61         OCTEONTX_LINK_SPEED_40G_R,
  62         OCTEONTX_LINK_SPEED_RESERVE1,
  63         OCTEONTX_LINK_SPEED_QSGMII,
  64         OCTEONTX_LINK_SPEED_RESERVE2
  65 };
  66
  67 /* Parse integer from integer argument */
  68 static int
  69 parse_integer_arg(const char *key __rte_unused,
  70                 const char *value, void *extra_args)
  71 {
  72         int *i = (int *)extra_args;
  73
  74         *i = atoi(value);
  75         if (*i < 0) {
  76                 octeontx_log_err("argument has to be positive.");
  77                 return -1;
  78         }
  79
  80         return 0;
  81 }
  82
  83 static int
  84 octeontx_parse_vdev_init_params(struct octeontx_vdev_init_params *params,
  85                                 struct rte_vdev_device *dev)
  86 {
  87         struct rte_kvargs *kvlist = NULL;
  88         int ret = 0;
  89
  90         static const char * const octeontx_vdev_valid_params[] = {
  91                 OCTEONTX_VDEV_NR_PORT_ARG,
  92                 NULL
  93         };
  94
  95         const char *input_args = rte_vdev_device_args(dev);
  96         if (params == NULL)
  97                 return -EINVAL;
  98
  99
 100         if (input_args) {
 101                 kvlist = rte_kvargs_parse(input_args,
 102                                 octeontx_vdev_valid_params);
 103                 if (kvlist == NULL)
 104                         return -1;
 105
 106                 ret = rte_kvargs_process(kvlist,
 107                                         OCTEONTX_VDEV_NR_PORT_ARG,
 108                                         &parse_integer_arg,
 109                                         &params->nr_port);
 110                 if (ret < 0)
 111                         goto free_kvlist;
 112         }
 113
 114 free_kvlist:
 115         rte_kvargs_free(kvlist);
 116         return ret;
 117 }
 118
 119 static int
 120 octeontx_port_open(struct octeontx_nic *nic)
 121 {
 122         octeontx_mbox_bgx_port_conf_t bgx_port_conf;
 123         int res;
 124
 125         res = 0;
 126
 127         PMD_INIT_FUNC_TRACE();
 128
 129         res = octeontx_bgx_port_open(nic->port_id, &bgx_port_conf);
 130         if (res < 0) {
 131                 octeontx_log_err("failed to open port %d", res);
 132                 return res;
 133         }
 134
 135         nic->node = bgx_port_conf.node;
 136         nic->port_ena = bgx_port_conf.enable;
 137         nic->base_ichan = bgx_port_conf.base_chan;
 138         nic->base_ochan = bgx_port_conf.base_chan;
 139         nic->num_ichans = bgx_port_conf.num_chans;
 140         nic->num_ochans = bgx_port_conf.num_chans;
 141         nic->mtu = bgx_port_conf.mtu;
 142         nic->bpen = bgx_port_conf.bpen;
 143         nic->fcs_strip = bgx_port_conf.fcs_strip;
 144         nic->bcast_mode = bgx_port_conf.bcast_mode;
 145         nic->mcast_mode = bgx_port_conf.mcast_mode;
 146         nic->speed      = bgx_port_conf.mode;
 147
 148         memcpy(&nic->mac_addr[0], &bgx_port_conf.macaddr[0], ETHER_ADDR_LEN);
 149
 150         octeontx_log_dbg("port opened %d", nic->port_id);
 151         return res;
 152 }
 153
 154 static void
 155 octeontx_port_close(struct octeontx_nic *nic)
 156 {
 157         PMD_INIT_FUNC_TRACE();
 158
 159         octeontx_bgx_port_close(nic->port_id);
 160         octeontx_log_dbg("port closed %d", nic->port_id);
 161 }
 162
 163 static void
 164 octeontx_port_promisc_set(struct octeontx_nic *nic, int en)
 165 {
 166         struct rte_eth_dev *dev;
 167         int res;
 168
 169         res = 0;
 170         PMD_INIT_FUNC_TRACE();
 171         dev = nic->dev;
 172
 173         res = octeontx_bgx_port_promisc_set(nic->port_id, en);
 174         if (res < 0)
 175                 octeontx_log_err("failed to set promiscuous mode %d",
 176                                 nic->port_id);
 177
 178         /* Set proper flag for the mode */
 179         dev->data->promiscuous = (en != 0) ? 1 : 0;
 180
 181         octeontx_log_dbg("port %d : promiscuous mode %s",
 182                         nic->port_id, en ? "set" : "unset");
 183 }
 184
 185 static inline void
 186 devconf_set_default_sane_values(struct rte_event_dev_config *dev_conf,
 187                                 struct rte_event_dev_info *info)
 188 {
 189         memset(dev_conf, 0, sizeof(struct rte_event_dev_config));
 190         dev_conf->dequeue_timeout_ns = info->min_dequeue_timeout_ns;
 191
 192         dev_conf->nb_event_ports = info->max_event_ports;
 193         dev_conf->nb_event_queues = info->max_event_queues;
 194
 195         dev_conf->nb_event_queue_flows = info->max_event_queue_flows;
 196         dev_conf->nb_event_port_dequeue_depth =
 197                         info->max_event_port_dequeue_depth;
 198         dev_conf->nb_event_port_enqueue_depth =
 199                         info->max_event_port_enqueue_depth;
 200         dev_conf->nb_event_port_enqueue_depth =
 201                         info->max_event_port_enqueue_depth;
 202         dev_conf->nb_events_limit =
 203                         info->max_num_events;
 204 }
 205
 206 static int
 207 octeontx_dev_configure(struct rte_eth_dev *dev)
 208 {
 209         struct rte_eth_dev_data *data = dev->data;
 210         struct rte_eth_conf *conf = &data->dev_conf;
 211         struct rte_eth_rxmode *rxmode = &conf->rxmode;
 212         struct rte_eth_txmode *txmode = &conf->txmode;
 213         struct octeontx_nic *nic = octeontx_pmd_priv(dev);
 214         int ret;
 215
 216         PMD_INIT_FUNC_TRACE();
 217         RTE_SET_USED(conf);
 218
 219         if (!rte_eal_has_hugepages()) {
 220                 octeontx_log_err("huge page is not configured");
 221                 return -EINVAL;
 222         }
 223
 224         if (txmode->mq_mode) {
 225                 octeontx_log_err("tx mq_mode DCB or VMDq not supported");
 226                 return -EINVAL;
 227         }
 228
 229         if (rxmode->mq_mode != ETH_MQ_RX_NONE &&
 230                 rxmode->mq_mode != ETH_MQ_RX_RSS) {
 231                 octeontx_log_err("unsupported rx qmode %d", rxmode->mq_mode);
 232                 return -EINVAL;
 233         }
 234
 235         if (!rxmode->hw_strip_crc) {
 236                 PMD_INIT_LOG(NOTICE, "can't disable hw crc strip");
 237                 rxmode->hw_strip_crc = 1;
 238         }
 239
 240         if (rxmode->hw_ip_checksum) {
 241                 PMD_INIT_LOG(NOTICE, "rxcksum not supported");
 242                 rxmode->hw_ip_checksum = 0;
 243         }
 244
 245         if (rxmode->split_hdr_size) {
 246                 octeontx_log_err("rxmode does not support split header");
 247                 return -EINVAL;
 248         }
 249
 250         if (rxmode->hw_vlan_filter) {
 251                 octeontx_log_err("VLAN filter not supported");
 252                 return -EINVAL;
 253         }
 254
 255         if (rxmode->hw_vlan_extend) {
 256                 octeontx_log_err("VLAN extended not supported");
 257                 return -EINVAL;
 258         }
 259
 260         if (rxmode->enable_lro) {
 261                 octeontx_log_err("LRO not supported");
 262                 return -EINVAL;
 263         }
 264
 265         if (conf->link_speeds & ETH_LINK_SPEED_FIXED) {
 266                 octeontx_log_err("setting link speed/duplex not supported");
 267                 return -EINVAL;
 268         }
 269
 270         if (conf->dcb_capability_en) {
 271                 octeontx_log_err("DCB enable not supported");
 272                 return -EINVAL;
 273         }
 274
 275         if (conf->fdir_conf.mode != RTE_FDIR_MODE_NONE) {
 276                 octeontx_log_err("flow director not supported");
 277                 return -EINVAL;
 278         }
 279
 280         nic->num_tx_queues = dev->data->nb_tx_queues;
 281
 282         ret = octeontx_pko_channel_open(nic->port_id * PKO_VF_NUM_DQ,
 283                                         nic->num_tx_queues,
 284                                         nic->base_ochan);
 285         if (ret) {
 286                 octeontx_log_err("failed to open channel %d no-of-txq %d",
 287                            nic->base_ochan, nic->num_tx_queues);
 288                 return -EFAULT;
 289         }
 290
 291         nic->pki.classifier_enable = false;
 292         nic->pki.hash_enable = true;
 293         nic->pki.initialized = false;
 294
 295         return 0;
 296 }
 297
 298 static void
 299 octeontx_dev_promisc_enable(struct rte_eth_dev *dev)
 300 {
 301         struct octeontx_nic *nic = octeontx_pmd_priv(dev);
 302
 303         PMD_INIT_FUNC_TRACE();
 304         octeontx_port_promisc_set(nic, 1);
 305 }
 306
 307 static void
 308 octeontx_dev_promisc_disable(struct rte_eth_dev *dev)
 309 {
 310         struct octeontx_nic *nic = octeontx_pmd_priv(dev);
 311
 312         PMD_INIT_FUNC_TRACE();
 313         octeontx_port_promisc_set(nic, 0);
 314 }
 315
 316 static inline int
 317 octeontx_atomic_write_link_status(struct rte_eth_dev *dev,
 318                                   struct rte_eth_link *link)
 319 {
 320         struct rte_eth_link *dst = &dev->data->dev_link;
 321         struct rte_eth_link *src = link;
 322
 323         if (rte_atomic64_cmpset((uint64_t *)dst, *(uint64_t *)dst,
 324                 *(uint64_t *)src) == 0)
 325                 return -1;
 326
 327         return 0;
 328 }
 329
 330 static int
 331 octeontx_port_link_status(struct octeontx_nic *nic)
 332 {
 333         int res;
 334
 335         PMD_INIT_FUNC_TRACE();
 336         res = octeontx_bgx_port_link_status(nic->port_id);
 337         if (res < 0) {
 338                 octeontx_log_err("failed to get port %d link status",
 339                                 nic->port_id);
 340                 return res;
 341         }
 342
 343         nic->link_up = (uint8_t)res;
 344         octeontx_log_dbg("port %d link status %d", nic->port_id, nic->link_up);
 345
 346         return res;
 347 }
 348
 349 /*
 350  * Return 0 means link status changed, -1 means not changed
 351  */
 352 static int
 353 octeontx_dev_link_update(struct rte_eth_dev *dev,
 354                          int wait_to_complete __rte_unused)
 355 {
 356         struct octeontx_nic *nic = octeontx_pmd_priv(dev);
 357         struct rte_eth_link link;
 358         int res;
 359
 360         res = 0;
 361         PMD_INIT_FUNC_TRACE();
 362
 363         res = octeontx_port_link_status(nic);
 364         if (res < 0) {
 365                 octeontx_log_err("failed to request link status %d", res);
 366                 return res;
 367         }
 368
 369         link.link_status = nic->link_up;
 370
 371         switch (nic->speed) {
 372         case OCTEONTX_LINK_SPEED_SGMII:
 373                 link.link_speed = ETH_SPEED_NUM_1G;
 374                 break;
 375
 376         case OCTEONTX_LINK_SPEED_XAUI:
 377                 link.link_speed = ETH_SPEED_NUM_10G;
 378                 break;
 379
 380         case OCTEONTX_LINK_SPEED_RXAUI:
 381         case OCTEONTX_LINK_SPEED_10G_R:
 382                 link.link_speed = ETH_SPEED_NUM_10G;
 383                 break;
 384         case OCTEONTX_LINK_SPEED_QSGMII:
 385                 link.link_speed = ETH_SPEED_NUM_5G;
 386                 break;
 387         case OCTEONTX_LINK_SPEED_40G_R:
 388                 link.link_speed = ETH_SPEED_NUM_40G;
 389                 break;
 390
 391         case OCTEONTX_LINK_SPEED_RESERVE1:
 392         case OCTEONTX_LINK_SPEED_RESERVE2:
 393         default:
 394                 octeontx_log_err("incorrect link speed %d", nic->speed);
 395                 break;
 396         }
 397
 398         link.link_duplex = ETH_LINK_AUTONEG;
 399         link.link_autoneg = ETH_LINK_SPEED_AUTONEG;
 400
 401         return octeontx_atomic_write_link_status(dev, &link);
 402 }
 403
 404 static void
 405 octeontx_dev_info(struct rte_eth_dev *dev,
 406                 struct rte_eth_dev_info *dev_info)
 407 {
 408         RTE_SET_USED(dev);
 409
 410         /* Autonegotiation may be disabled */
 411         dev_info->speed_capa = ETH_LINK_SPEED_FIXED;
 412         dev_info->speed_capa |= ETH_LINK_SPEED_10M | ETH_LINK_SPEED_100M |
 413                         ETH_LINK_SPEED_1G | ETH_LINK_SPEED_10G |
 414                         ETH_LINK_SPEED_40G;
 415
 416         dev_info->driver_name = RTE_STR(rte_octeontx_pmd);
 417         dev_info->max_mac_addrs = 1;
 418         dev_info->max_rx_pktlen = PKI_MAX_PKTLEN;
 419         dev_info->max_rx_queues = 1;
 420         dev_info->max_tx_queues = PKO_MAX_NUM_DQ;
 421         dev_info->min_rx_bufsize = 0;
 422         dev_info->pci_dev = NULL;
 423
 424         dev_info->default_rxconf = (struct rte_eth_rxconf) {
 425                 .rx_free_thresh = 0,
 426                 .rx_drop_en = 0,
 427         };
 428
 429         dev_info->default_txconf = (struct rte_eth_txconf) {
 430                 .tx_free_thresh = 0,
 431                 .txq_flags =
 432                         ETH_TXQ_FLAGS_NOMULTSEGS |
 433                         ETH_TXQ_FLAGS_NOOFFLOADS |
 434                         ETH_TXQ_FLAGS_NOXSUMS,
 435         };
 436
 437         dev_info->tx_offload_capa = DEV_TX_OFFLOAD_MT_LOCKFREE;
 438 }
 439
 440 /* Initialize and register driver with DPDK Application */
 441 static const struct eth_dev_ops octeontx_dev_ops = {
 442         .dev_configure           = octeontx_dev_configure,
 443         .dev_infos_get           = octeontx_dev_info,
 444         .promiscuous_enable      = octeontx_dev_promisc_enable,
 445         .promiscuous_disable     = octeontx_dev_promisc_disable,
 446         .link_update             = octeontx_dev_link_update,
 447 };
 448
 449 /* Create Ethdev interface per BGX LMAC ports */
 450 static int
 451 octeontx_create(struct rte_vdev_device *dev, int port, uint8_t evdev,
 452                         int socket_id)
 453 {
 454         int res;
 455         char octtx_name[OCTEONTX_MAX_NAME_LEN];
 456         struct octeontx_nic *nic = NULL;
 457         struct rte_eth_dev *eth_dev = NULL;
 458         struct rte_eth_dev_data *data = NULL;
 459         const char *name = rte_vdev_device_name(dev);
 460
 461         PMD_INIT_FUNC_TRACE();
 462
 463         sprintf(octtx_name, "%s_%d", name, port);
 464         if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
 465                 eth_dev = rte_eth_dev_attach_secondary(octtx_name);
 466                 if (eth_dev == NULL)
 467                         return -ENODEV;
 468
 469                 return 0;
 470         }
 471
 472         data = rte_zmalloc_socket(octtx_name, sizeof(*data), 0, socket_id);
 473         if (data == NULL) {
 474                 octeontx_log_err("failed to allocate devdata");
 475                 res = -ENOMEM;
 476                 goto err;
 477         }
 478
 479         nic = rte_zmalloc_socket(octtx_name, sizeof(*nic), 0, socket_id);
 480         if (nic == NULL) {
 481                 octeontx_log_err("failed to allocate nic structure");
 482                 res = -ENOMEM;
 483                 goto err;
 484         }
 485
 486         nic->port_id = port;
 487         nic->evdev = evdev;
 488
 489         res = octeontx_port_open(nic);
 490         if (res < 0)
 491                 goto err;
 492
 493         /* Rx side port configuration */
 494         res = octeontx_pki_port_open(port);
 495         if (res != 0) {
 496                 octeontx_log_err("failed to open PKI port %d", port);
 497                 res = -ENODEV;
 498                 goto err;
 499         }
 500
 501         /* Reserve an ethdev entry */
 502         eth_dev = rte_eth_dev_allocate(octtx_name);
 503         if (eth_dev == NULL) {
 504                 octeontx_log_err("failed to allocate rte_eth_dev");
 505                 res = -ENOMEM;
 506                 goto err;
 507         }
 508
 509         eth_dev->device = &dev->device;
 510         eth_dev->intr_handle = NULL;
 511         eth_dev->data->kdrv = RTE_KDRV_NONE;
 512         eth_dev->data->numa_node = dev->device.numa_node;
 513
 514         rte_memcpy(data, (eth_dev)->data, sizeof(*data));
 515         data->dev_private = nic;
 516
 517         data->port_id = eth_dev->data->port_id;
 518         snprintf(data->name, sizeof(data->name), "%s", eth_dev->data->name);
 519
 520         nic->ev_queues = 1;
 521         nic->ev_ports = 1;
 522
 523         data->dev_link.link_status = ETH_LINK_DOWN;
 524         data->dev_started = 0;
 525         data->promiscuous = 0;
 526         data->all_multicast = 0;
 527         data->scattered_rx = 0;
 528
 529         data->mac_addrs = rte_zmalloc_socket(octtx_name, ETHER_ADDR_LEN, 0,
 530                                                         socket_id);
 531         if (data->mac_addrs == NULL) {
 532                 octeontx_log_err("failed to allocate memory for mac_addrs");
 533                 res = -ENOMEM;
 534                 goto err;
 535         }
 536
 537         eth_dev->data = data;
 538         eth_dev->dev_ops = &octeontx_dev_ops;
 539
 540         /* Finally save ethdev pointer to the NIC structure */
 541         nic->dev = eth_dev;
 542
 543         if (nic->port_id != data->port_id) {
 544                 octeontx_log_err("eth_dev->port_id (%d) is diff to orig (%d)",
 545                                 data->port_id, nic->port_id);
 546                 res = -EINVAL;
 547                 goto err;
 548         }
 549
 550         /* Update port_id mac to eth_dev */
 551         memcpy(data->mac_addrs, nic->mac_addr, ETHER_ADDR_LEN);
 552
 553         PMD_INIT_LOG(DEBUG, "ethdev info: ");
 554         PMD_INIT_LOG(DEBUG, "port %d, port_ena %d ochan %d num_ochan %d tx_q %d",
 555                                 nic->port_id, nic->port_ena,
 556                                 nic->base_ochan, nic->num_ochans,
 557                                 nic->num_tx_queues);
 558         PMD_INIT_LOG(DEBUG, "speed %d mtu %d", nic->speed, nic->mtu);
 559
 560         return data->port_id;
 561
 562 err:
 563         if (port)
 564                 octeontx_port_close(nic);
 565
 566         if (eth_dev != NULL) {
 567                 rte_free(eth_dev->data->mac_addrs);
 568                 rte_free(data);
 569                 rte_free(nic);
 570                 rte_eth_dev_release_port(eth_dev);
 571         }
 572
 573         return res;
 574 }
 575
 576 /* Un initialize octeontx device */
 577 static int
 578 octeontx_remove(struct rte_vdev_device *dev)
 579 {
 580         char octtx_name[OCTEONTX_MAX_NAME_LEN];
 581         struct rte_eth_dev *eth_dev = NULL;
 582         struct octeontx_nic *nic = NULL;
 583         int i;
 584
 585         if (dev == NULL)
 586                 return -EINVAL;
 587
 588         for (i = 0; i < OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT; i++) {
 589                 sprintf(octtx_name, "eth_octeontx_%d", i);
 590
 591                 /* reserve an ethdev entry */
 592                 eth_dev = rte_eth_dev_allocated(octtx_name);
 593                 if (eth_dev == NULL)
 594                         return -ENODEV;
 595
 596                 nic = octeontx_pmd_priv(eth_dev);
 597                 rte_event_dev_stop(nic->evdev);
 598                 PMD_INIT_LOG(INFO, "Closing octeontx device %s", octtx_name);
 599
 600                 rte_free(eth_dev->data->mac_addrs);
 601                 rte_free(eth_dev->data->dev_private);
 602                 rte_free(eth_dev->data);
 603                 rte_eth_dev_release_port(eth_dev);
 604                 rte_event_dev_close(nic->evdev);
 605         }
 606
 607         /* Free FC resource */
 608         octeontx_pko_fc_free();
 609
 610         return 0;
 611 }
 612
 613 /* Initialize octeontx device */
 614 static int
 615 octeontx_probe(struct rte_vdev_device *dev)
 616 {
 617         const char *dev_name;
 618         static int probe_once;
 619         uint8_t socket_id, qlist;
 620         int tx_vfcnt, port_id, evdev, qnum, pnum, res, i;
 621         struct rte_event_dev_config dev_conf;
 622         const char *eventdev_name = "event_octeontx";
 623         struct rte_event_dev_info info;
 624
 625         struct octeontx_vdev_init_params init_params = {
 626                 OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT
 627         };
 628
 629         dev_name = rte_vdev_device_name(dev);
 630         res = octeontx_parse_vdev_init_params(&init_params, dev);
 631         if (res < 0)
 632                 return -EINVAL;
 633
 634         if (init_params.nr_port > OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT) {
 635                 octeontx_log_err("nr_port (%d) > max (%d)", init_params.nr_port,
 636                                 OCTEONTX_VDEV_DEFAULT_MAX_NR_PORT);
 637                 return -ENOTSUP;
 638         }
 639
 640         PMD_INIT_LOG(DEBUG, "initializing %s pmd", dev_name);
 641
 642         socket_id = rte_socket_id();
 643
 644         tx_vfcnt = octeontx_pko_vf_count();
 645
 646         if (tx_vfcnt < init_params.nr_port) {
 647                 octeontx_log_err("not enough PKO (%d) for port number (%d)",
 648                                 tx_vfcnt, init_params.nr_port);
 649                 return -EINVAL;
 650         }
 651         evdev = rte_event_dev_get_dev_id(eventdev_name);
 652         if (evdev < 0) {
 653                 octeontx_log_err("eventdev %s not found", eventdev_name);
 654                 return -ENODEV;
 655         }
 656
 657         res = rte_event_dev_info_get(evdev, &info);
 658         if (res < 0) {
 659                 octeontx_log_err("failed to eventdev info %d", res);
 660                 return -EINVAL;
 661         }
 662
 663         PMD_INIT_LOG(DEBUG, "max_queue %d max_port %d",
 664                         info.max_event_queues, info.max_event_ports);
 665
 666         if (octeontx_pko_init_fc(tx_vfcnt))
 667                 return -ENOMEM;
 668
 669         devconf_set_default_sane_values(&dev_conf, &info);
 670         res = rte_event_dev_configure(evdev, &dev_conf);
 671         if (res < 0)
 672                 goto parse_error;
 673
 674         rte_event_dev_attr_get(evdev, RTE_EVENT_DEV_ATTR_PORT_COUNT,
 675                         (uint32_t *)&pnum);
 676         rte_event_dev_attr_get(evdev, RTE_EVENT_DEV_ATTR_QUEUE_COUNT,
 677                         (uint32_t *)&qnum);
 678         if (pnum < qnum) {
 679                 octeontx_log_err("too few event ports (%d) for event_q(%d)",
 680                                 pnum, qnum);
 681                 res = -EINVAL;
 682                 goto parse_error;
 683         }
 684         if (pnum > qnum) {
 685                 /*
 686                  * We don't poll on event ports
 687                  * that do not have any queues assigned.
 688                  */
 689                 pnum = qnum;
 690                 PMD_INIT_LOG(INFO,
 691                         "reducing number of active event ports to %d", pnum);
 692         }
 693         for (i = 0; i < qnum; i++) {
 694                 res = rte_event_queue_setup(evdev, i, NULL);
 695                 if (res < 0) {
 696                         octeontx_log_err("failed to setup event_q(%d): res %d",
 697                                         i, res);
 698                         goto parse_error;
 699                 }
 700         }
 701
 702         for (i = 0; i < pnum; i++) {
 703                 res = rte_event_port_setup(evdev, i, NULL);
 704                 if (res < 0) {
 705                         res = -ENODEV;
 706                         octeontx_log_err("failed to setup ev port(%d) res=%d",
 707                                                 i, res);
 708                         goto parse_error;
 709                 }
 710                 /* Link one queue to one event port */
 711                 qlist = i;
 712                 res = rte_event_port_link(evdev, i, &qlist, NULL, 1);
 713                 if (res < 0) {
 714                         res = -ENODEV;
 715                         octeontx_log_err("failed to link port (%d): res=%d",
 716                                         i, res);
 717                         goto parse_error;
 718                 }
 719         }
 720
 721         /* Create ethdev interface */
 722         for (i = 0; i < init_params.nr_port; i++) {
 723                 port_id = octeontx_create(dev, i, evdev, socket_id);
 724                 if (port_id < 0) {
 725                         octeontx_log_err("failed to create device %s",
 726                                         dev_name);
 727                         res = -ENODEV;
 728                         goto parse_error;
 729                 }
 730
 731                 PMD_INIT_LOG(INFO, "created ethdev %s for port %d", dev_name,
 732                                         port_id);
 733         }
 734
 735         if (probe_once) {
 736                 octeontx_log_err("interface %s not supported", dev_name);
 737                 octeontx_remove(dev);
 738                 res = -ENOTSUP;
 739                 goto parse_error;
 740         }
 741         probe_once = 1;
 742
 743         return 0;
 744
 745 parse_error:
 746         octeontx_pko_fc_free();
 747         return res;
 748 }
 749
 750 static struct rte_vdev_driver octeontx_pmd_drv = {
 751         .probe = octeontx_probe,
 752         .remove = octeontx_remove,
 753 };
 754
 755 RTE_PMD_REGISTER_VDEV(OCTEONTX_PMD, octeontx_pmd_drv);
 756 RTE_PMD_REGISTER_ALIAS(OCTEONTX_PMD, eth_octeontx);
 757 RTE_PMD_REGISTER_PARAM_STRING(OCTEONTX_PMD, "nr_port=<int> ");