drivers/net/mlx5/linux/mlx5_os.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2015 6WIND S.A.
   3  * Copyright 2020 Mellanox Technologies, Ltd
   4  */
   5
   6 #include <stddef.h>
   7 #include <unistd.h>
   8 #include <string.h>
   9 #include <stdint.h>
  10 #include <stdlib.h>
  11 #include <errno.h>
  12 #include <net/if.h>
  13 #include <linux/rtnetlink.h>
  14 #include <linux/sockios.h>
  15 #include <linux/ethtool.h>
  16 #include <fcntl.h>
  17
  18 /* Verbs header. */
  19 /* ISO C doesn't support unnamed structs/unions, disabling -pedantic. */
  20 #ifdef PEDANTIC
  21 #pragma GCC diagnostic ignored "-Wpedantic"
  22 #endif
  23 #include <infiniband/verbs.h>
  24 #ifdef PEDANTIC
  25 #pragma GCC diagnostic error "-Wpedantic"
  26 #endif
  27
  28 #include <rte_malloc.h>
  29 #include <rte_ethdev_driver.h>
  30 #include <rte_ethdev_pci.h>
  31 #include <rte_pci.h>
  32 #include <rte_bus_pci.h>
  33 #include <rte_common.h>
  34 #include <rte_kvargs.h>
  35 #include <rte_rwlock.h>
  36 #include <rte_spinlock.h>
  37 #include <rte_string_fns.h>
  38 #include <rte_alarm.h>
  39 #include <rte_eal_paging.h>
  40
  41 #include <mlx5_glue.h>
  42 #include <mlx5_devx_cmds.h>
  43 #include <mlx5_common.h>
  44 #include <mlx5_common_mp.h>
  45 #include <mlx5_common_mr.h>
  46 #include <mlx5_malloc.h>
  47
  48 #include "mlx5_defs.h"
  49 #include "mlx5.h"
  50 #include "mlx5_common_os.h"
  51 #include "mlx5_utils.h"
  52 #include "mlx5_rxtx.h"
  53 #include "mlx5_autoconf.h"
  54 #include "mlx5_mr.h"
  55 #include "mlx5_flow.h"
  56 #include "rte_pmd_mlx5.h"
  57 #include "mlx5_verbs.h"
  58
  59 #define MLX5_TAGS_HLIST_ARRAY_SIZE 8192
  60
  61 #ifndef HAVE_IBV_MLX5_MOD_MPW
  62 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
  63 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
  64 #endif
  65
  66 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  67 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  68 #endif
  69
  70 /**
  71  * Get MAC address by querying netdevice.
  72  *
  73  * @param[in] dev
  74  *   Pointer to Ethernet device.
  75  * @param[out] mac
  76  *   MAC address output buffer.
  77  *
  78  * @return
  79  *   0 on success, a negative errno value otherwise and rte_errno is set.
  80  */
  81 static int
  82 mlx5_get_mac(struct rte_eth_dev *dev, uint8_t (*mac)[RTE_ETHER_ADDR_LEN])
  83 {
  84         struct ifreq request;
  85         int ret;
  86
  87         ret = mlx5_ifreq(dev, SIOCGIFHWADDR, &request);
  88         if (ret)
  89                 return ret;
  90         memcpy(mac, request.ifr_hwaddr.sa_data, RTE_ETHER_ADDR_LEN);
  91         return 0;
  92 }
  93
  94 /**
  95  * Get mlx5 device attributes. The glue function query_device_ex() is called
  96  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
  97  * device attributes from the glue out parameter.
  98  *
  99  * @param dev
 100  *   Pointer to ibv context.
 101  *
 102  * @param device_attr
 103  *   Pointer to mlx5 device attributes.
 104  *
 105  * @return
 106  *   0 on success, non zero error number otherwise
 107  */
 108 int
 109 mlx5_os_get_dev_attr(void *ctx, struct mlx5_dev_attr *device_attr)
 110 {
 111         int err;
 112         struct ibv_device_attr_ex attr_ex;
 113         memset(device_attr, 0, sizeof(*device_attr));
 114         err = mlx5_glue->query_device_ex(ctx, NULL, &attr_ex);
 115         if (err)
 116                 return err;
 117
 118         device_attr->device_cap_flags_ex = attr_ex.device_cap_flags_ex;
 119         device_attr->max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 120         device_attr->max_sge = attr_ex.orig_attr.max_sge;
 121         device_attr->max_cq = attr_ex.orig_attr.max_cq;
 122         device_attr->max_qp = attr_ex.orig_attr.max_qp;
 123         device_attr->raw_packet_caps = attr_ex.raw_packet_caps;
 124         device_attr->max_rwq_indirection_table_size =
 125                 attr_ex.rss_caps.max_rwq_indirection_table_size;
 126         device_attr->max_tso = attr_ex.tso_caps.max_tso;
 127         device_attr->tso_supported_qpts = attr_ex.tso_caps.supported_qpts;
 128
 129         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 130         err = mlx5_glue->dv_query_device(ctx, &dv_attr);
 131         if (err)
 132                 return err;
 133
 134         device_attr->flags = dv_attr.flags;
 135         device_attr->comp_mask = dv_attr.comp_mask;
 136 #ifdef HAVE_IBV_MLX5_MOD_SWP
 137         device_attr->sw_parsing_offloads =
 138                 dv_attr.sw_parsing_caps.sw_parsing_offloads;
 139 #endif
 140         device_attr->min_single_stride_log_num_of_bytes =
 141                 dv_attr.striding_rq_caps.min_single_stride_log_num_of_bytes;
 142         device_attr->max_single_stride_log_num_of_bytes =
 143                 dv_attr.striding_rq_caps.max_single_stride_log_num_of_bytes;
 144         device_attr->min_single_wqe_log_num_of_strides =
 145                 dv_attr.striding_rq_caps.min_single_wqe_log_num_of_strides;
 146         device_attr->max_single_wqe_log_num_of_strides =
 147                 dv_attr.striding_rq_caps.max_single_wqe_log_num_of_strides;
 148         device_attr->stride_supported_qpts =
 149                 dv_attr.striding_rq_caps.supported_qpts;
 150 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 151         device_attr->tunnel_offloads_caps = dv_attr.tunnel_offloads_caps;
 152 #endif
 153
 154         return err;
 155 }
 156
 157 /**
 158  * Verbs callback to allocate a memory. This function should allocate the space
 159  * according to the size provided residing inside a huge page.
 160  * Please note that all allocation must respect the alignment from libmlx5
 161  * (i.e. currently rte_mem_page_size()).
 162  *
 163  * @param[in] size
 164  *   The size in bytes of the memory to allocate.
 165  * @param[in] data
 166  *   A pointer to the callback data.
 167  *
 168  * @return
 169  *   Allocated buffer, NULL otherwise and rte_errno is set.
 170  */
 171 static void *
 172 mlx5_alloc_verbs_buf(size_t size, void *data)
 173 {
 174         struct mlx5_priv *priv = data;
 175         void *ret;
 176         unsigned int socket = SOCKET_ID_ANY;
 177         size_t alignment = rte_mem_page_size();
 178         if (alignment == (size_t)-1) {
 179                 DRV_LOG(ERR, "Failed to get mem page size");
 180                 rte_errno = ENOMEM;
 181                 return NULL;
 182         }
 183
 184         if (priv->verbs_alloc_ctx.type == MLX5_VERBS_ALLOC_TYPE_TX_QUEUE) {
 185                 const struct mlx5_txq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 186
 187                 socket = ctrl->socket;
 188         } else if (priv->verbs_alloc_ctx.type ==
 189                    MLX5_VERBS_ALLOC_TYPE_RX_QUEUE) {
 190                 const struct mlx5_rxq_ctrl *ctrl = priv->verbs_alloc_ctx.obj;
 191
 192                 socket = ctrl->socket;
 193         }
 194         MLX5_ASSERT(data != NULL);
 195         ret = mlx5_malloc(0, size, alignment, socket);
 196         if (!ret && size)
 197                 rte_errno = ENOMEM;
 198         return ret;
 199 }
 200
 201 /**
 202  * Verbs callback to free a memory.
 203  *
 204  * @param[in] ptr
 205  *   A pointer to the memory to free.
 206  * @param[in] data
 207  *   A pointer to the callback data.
 208  */
 209 static void
 210 mlx5_free_verbs_buf(void *ptr, void *data __rte_unused)
 211 {
 212         MLX5_ASSERT(data != NULL);
 213         mlx5_free(ptr);
 214 }
 215
 216 /**
 217  * Initialize DR related data within private structure.
 218  * Routine checks the reference counter and does actual
 219  * resources creation/initialization only if counter is zero.
 220  *
 221  * @param[in] priv
 222  *   Pointer to the private device data structure.
 223  *
 224  * @return
 225  *   Zero on success, positive error code otherwise.
 226  */
 227 static int
 228 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 229 {
 230         struct mlx5_dev_ctx_shared *sh = priv->sh;
 231         char s[MLX5_HLIST_NAMESIZE];
 232         int err = 0;
 233
 234         if (!sh->flow_tbls)
 235                 err = mlx5_alloc_table_hash_list(priv);
 236         else
 237                 DRV_LOG(DEBUG, "sh->flow_tbls[%p] already created, reuse\n",
 238                         (void *)sh->flow_tbls);
 239         if (err)
 240                 return err;
 241         /* Create tags hash list table. */
 242         snprintf(s, sizeof(s), "%s_tags", sh->ibdev_name);
 243         sh->tag_table = mlx5_hlist_create(s, MLX5_TAGS_HLIST_ARRAY_SIZE);
 244         if (!sh->tag_table) {
 245                 DRV_LOG(ERR, "tags with hash creation failed.");
 246                 err = ENOMEM;
 247                 goto error;
 248         }
 249 #ifdef HAVE_MLX5DV_DR
 250         void *domain;
 251
 252         if (sh->dv_refcnt) {
 253                 /* Shared DV/DR structures is already initialized. */
 254                 sh->dv_refcnt++;
 255                 priv->dr_shared = 1;
 256                 return 0;
 257         }
 258         /* Reference counter is zero, we should initialize structures. */
 259         domain = mlx5_glue->dr_create_domain(sh->ctx,
 260                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 261         if (!domain) {
 262                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 263                 err = errno;
 264                 goto error;
 265         }
 266         sh->rx_domain = domain;
 267         domain = mlx5_glue->dr_create_domain(sh->ctx,
 268                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 269         if (!domain) {
 270                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 271                 err = errno;
 272                 goto error;
 273         }
 274         pthread_mutex_init(&sh->dv_mutex, NULL);
 275         sh->tx_domain = domain;
 276 #ifdef HAVE_MLX5DV_DR_ESWITCH
 277         if (priv->config.dv_esw_en) {
 278                 domain  = mlx5_glue->dr_create_domain
 279                         (sh->ctx, MLX5DV_DR_DOMAIN_TYPE_FDB);
 280                 if (!domain) {
 281                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 282                         err = errno;
 283                         goto error;
 284                 }
 285                 sh->fdb_domain = domain;
 286                 sh->esw_drop_action = mlx5_glue->dr_create_flow_action_drop();
 287         }
 288 #endif
 289         if (priv->config.reclaim_mode == MLX5_RCM_AGGR) {
 290                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 291                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 292                 if (sh->fdb_domain)
 293                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 294         }
 295         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 296 #endif /* HAVE_MLX5DV_DR */
 297         sh->dv_refcnt++;
 298         priv->dr_shared = 1;
 299         return 0;
 300 error:
 301         /* Rollback the created objects. */
 302         if (sh->rx_domain) {
 303                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 304                 sh->rx_domain = NULL;
 305         }
 306         if (sh->tx_domain) {
 307                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 308                 sh->tx_domain = NULL;
 309         }
 310         if (sh->fdb_domain) {
 311                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 312                 sh->fdb_domain = NULL;
 313         }
 314         if (sh->esw_drop_action) {
 315                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 316                 sh->esw_drop_action = NULL;
 317         }
 318         if (sh->pop_vlan_action) {
 319                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 320                 sh->pop_vlan_action = NULL;
 321         }
 322         if (sh->tag_table) {
 323                 /* tags should be destroyed with flow before. */
 324                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 325                 sh->tag_table = NULL;
 326         }
 327         mlx5_free_table_hash_list(priv);
 328         return err;
 329 }
 330
 331 /**
 332  * Destroy DR related data within private structure.
 333  *
 334  * @param[in] priv
 335  *   Pointer to the private device data structure.
 336  */
 337 void
 338 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 339 {
 340         struct mlx5_dev_ctx_shared *sh;
 341
 342         if (!priv->dr_shared)
 343                 return;
 344         priv->dr_shared = 0;
 345         sh = priv->sh;
 346         MLX5_ASSERT(sh);
 347 #ifdef HAVE_MLX5DV_DR
 348         MLX5_ASSERT(sh->dv_refcnt);
 349         if (sh->dv_refcnt && --sh->dv_refcnt)
 350                 return;
 351         if (sh->rx_domain) {
 352                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 353                 sh->rx_domain = NULL;
 354         }
 355         if (sh->tx_domain) {
 356                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 357                 sh->tx_domain = NULL;
 358         }
 359 #ifdef HAVE_MLX5DV_DR_ESWITCH
 360         if (sh->fdb_domain) {
 361                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 362                 sh->fdb_domain = NULL;
 363         }
 364         if (sh->esw_drop_action) {
 365                 mlx5_glue->destroy_flow_action(sh->esw_drop_action);
 366                 sh->esw_drop_action = NULL;
 367         }
 368 #endif
 369         if (sh->pop_vlan_action) {
 370                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 371                 sh->pop_vlan_action = NULL;
 372         }
 373         pthread_mutex_destroy(&sh->dv_mutex);
 374 #endif /* HAVE_MLX5DV_DR */
 375         if (sh->tag_table) {
 376                 /* tags should be destroyed with flow before. */
 377                 mlx5_hlist_destroy(sh->tag_table, NULL, NULL);
 378                 sh->tag_table = NULL;
 379         }
 380         mlx5_free_table_hash_list(priv);
 381 }
 382
 383 /**
 384  * Spawn an Ethernet device from Verbs information.
 385  *
 386  * @param dpdk_dev
 387  *   Backing DPDK device.
 388  * @param spawn
 389  *   Verbs device parameters (name, port, switch_info) to spawn.
 390  * @param config
 391  *   Device configuration parameters.
 392  *
 393  * @return
 394  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
 395  *   is set. The following errors are defined:
 396  *
 397  *   EBUSY: device is not supposed to be spawned.
 398  *   EEXIST: device is already spawned
 399  */
 400 static struct rte_eth_dev *
 401 mlx5_dev_spawn(struct rte_device *dpdk_dev,
 402                struct mlx5_dev_spawn_data *spawn,
 403                struct mlx5_dev_config config)
 404 {
 405         const struct mlx5_switch_info *switch_info = &spawn->info;
 406         struct mlx5_dev_ctx_shared *sh = NULL;
 407         struct ibv_port_attr port_attr;
 408         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 409         struct rte_eth_dev *eth_dev = NULL;
 410         struct mlx5_priv *priv = NULL;
 411         int err = 0;
 412         unsigned int hw_padding = 0;
 413         unsigned int mps;
 414         unsigned int cqe_comp;
 415         unsigned int cqe_pad = 0;
 416         unsigned int tunnel_en = 0;
 417         unsigned int mpls_en = 0;
 418         unsigned int swp = 0;
 419         unsigned int mprq = 0;
 420         unsigned int mprq_min_stride_size_n = 0;
 421         unsigned int mprq_max_stride_size_n = 0;
 422         unsigned int mprq_min_stride_num_n = 0;
 423         unsigned int mprq_max_stride_num_n = 0;
 424         struct rte_ether_addr mac;
 425         char name[RTE_ETH_NAME_MAX_LEN];
 426         int own_domain_id = 0;
 427         uint16_t port_id;
 428         unsigned int i;
 429 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 430         struct mlx5dv_devx_port devx_port = { .comp_mask = 0 };
 431 #endif
 432
 433         /* Determine if this port representor is supposed to be spawned. */
 434         if (switch_info->representor && dpdk_dev->devargs) {
 435                 struct rte_eth_devargs eth_da;
 436
 437                 err = rte_eth_devargs_parse(dpdk_dev->devargs->args, &eth_da);
 438                 if (err) {
 439                         rte_errno = -err;
 440                         DRV_LOG(ERR, "failed to process device arguments: %s",
 441                                 strerror(rte_errno));
 442                         return NULL;
 443                 }
 444                 for (i = 0; i < eth_da.nb_representor_ports; ++i)
 445                         if (eth_da.representor_ports[i] ==
 446                             (uint16_t)switch_info->port_name)
 447                                 break;
 448                 if (i == eth_da.nb_representor_ports) {
 449                         rte_errno = EBUSY;
 450                         return NULL;
 451                 }
 452         }
 453         /* Build device name. */
 454         if (spawn->pf_bond <  0) {
 455                 /* Single device. */
 456                 if (!switch_info->representor)
 457                         strlcpy(name, dpdk_dev->name, sizeof(name));
 458                 else
 459                         snprintf(name, sizeof(name), "%s_representor_%u",
 460                                  dpdk_dev->name, switch_info->port_name);
 461         } else {
 462                 /* Bonding device. */
 463                 if (!switch_info->representor)
 464                         snprintf(name, sizeof(name), "%s_%s",
 465                                  dpdk_dev->name,
 466                                  mlx5_os_get_dev_device_name(spawn->phys_dev));
 467                 else
 468                         snprintf(name, sizeof(name), "%s_%s_representor_%u",
 469                                  dpdk_dev->name,
 470                                  mlx5_os_get_dev_device_name(spawn->phys_dev),
 471                                  switch_info->port_name);
 472         }
 473         /* check if the device is already spawned */
 474         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
 475                 rte_errno = EEXIST;
 476                 return NULL;
 477         }
 478         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
 479         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
 480                 struct mlx5_mp_id mp_id;
 481
 482                 eth_dev = rte_eth_dev_attach_secondary(name);
 483                 if (eth_dev == NULL) {
 484                         DRV_LOG(ERR, "can not attach rte ethdev");
 485                         rte_errno = ENOMEM;
 486                         return NULL;
 487                 }
 488                 eth_dev->device = dpdk_dev;
 489                 eth_dev->dev_ops = &mlx5_os_dev_sec_ops;
 490                 err = mlx5_proc_priv_init(eth_dev);
 491                 if (err)
 492                         return NULL;
 493                 mp_id.port_id = eth_dev->data->port_id;
 494                 strlcpy(mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 495                 /* Receive command fd from primary process */
 496                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
 497                 if (err < 0)
 498                         goto err_secondary;
 499                 /* Remap UAR for Tx queues. */
 500                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
 501                 if (err)
 502                         goto err_secondary;
 503                 /*
 504                  * Ethdev pointer is still required as input since
 505                  * the primary device is not accessible from the
 506                  * secondary process.
 507                  */
 508                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
 509                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
 510                 return eth_dev;
 511 err_secondary:
 512                 mlx5_dev_close(eth_dev);
 513                 return NULL;
 514         }
 515         /*
 516          * Some parameters ("tx_db_nc" in particularly) are needed in
 517          * advance to create dv/verbs device context. We proceed the
 518          * devargs here to get ones, and later proceed devargs again
 519          * to override some hardware settings.
 520          */
 521         err = mlx5_args(&config, dpdk_dev->devargs);
 522         if (err) {
 523                 err = rte_errno;
 524                 DRV_LOG(ERR, "failed to process device arguments: %s",
 525                         strerror(rte_errno));
 526                 goto error;
 527         }
 528         mlx5_malloc_mem_select(config.sys_mem_en);
 529         sh = mlx5_alloc_shared_dev_ctx(spawn, &config);
 530         if (!sh)
 531                 return NULL;
 532         config.devx = sh->devx;
 533 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
 534         config.dest_tir = 1;
 535 #endif
 536 #ifdef HAVE_IBV_MLX5_MOD_SWP
 537         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
 538 #endif
 539         /*
 540          * Multi-packet send is supported by ConnectX-4 Lx PF as well
 541          * as all ConnectX-5 devices.
 542          */
 543 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 544         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
 545 #endif
 546 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 547         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
 548 #endif
 549         mlx5_glue->dv_query_device(sh->ctx, &dv_attr);
 550         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
 551                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
 552                         DRV_LOG(DEBUG, "enhanced MPW is supported");
 553                         mps = MLX5_MPW_ENHANCED;
 554                 } else {
 555                         DRV_LOG(DEBUG, "MPW is supported");
 556                         mps = MLX5_MPW;
 557                 }
 558         } else {
 559                 DRV_LOG(DEBUG, "MPW isn't supported");
 560                 mps = MLX5_MPW_DISABLED;
 561         }
 562 #ifdef HAVE_IBV_MLX5_MOD_SWP
 563         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
 564                 swp = dv_attr.sw_parsing_caps.sw_parsing_offloads;
 565         DRV_LOG(DEBUG, "SWP support: %u", swp);
 566 #endif
 567         config.swp = !!swp;
 568 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 569         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
 570                 struct mlx5dv_striding_rq_caps mprq_caps =
 571                         dv_attr.striding_rq_caps;
 572
 573                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %d",
 574                         mprq_caps.min_single_stride_log_num_of_bytes);
 575                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %d",
 576                         mprq_caps.max_single_stride_log_num_of_bytes);
 577                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %d",
 578                         mprq_caps.min_single_wqe_log_num_of_strides);
 579                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %d",
 580                         mprq_caps.max_single_wqe_log_num_of_strides);
 581                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
 582                         mprq_caps.supported_qpts);
 583                 DRV_LOG(DEBUG, "device supports Multi-Packet RQ");
 584                 mprq = 1;
 585                 mprq_min_stride_size_n =
 586                         mprq_caps.min_single_stride_log_num_of_bytes;
 587                 mprq_max_stride_size_n =
 588                         mprq_caps.max_single_stride_log_num_of_bytes;
 589                 mprq_min_stride_num_n =
 590                         mprq_caps.min_single_wqe_log_num_of_strides;
 591                 mprq_max_stride_num_n =
 592                         mprq_caps.max_single_wqe_log_num_of_strides;
 593         }
 594 #endif
 595         if (RTE_CACHE_LINE_SIZE == 128 &&
 596             !(dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP))
 597                 cqe_comp = 0;
 598         else
 599                 cqe_comp = 1;
 600         config.cqe_comp = cqe_comp;
 601 #ifdef HAVE_IBV_MLX5_MOD_CQE_128B_PAD
 602         /* Whether device supports 128B Rx CQE padding. */
 603         cqe_pad = RTE_CACHE_LINE_SIZE == 128 &&
 604                   (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_PAD);
 605 #endif
 606 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 607         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
 608                 tunnel_en = ((dv_attr.tunnel_offloads_caps &
 609                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_VXLAN) &&
 610                              (dv_attr.tunnel_offloads_caps &
 611                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GRE) &&
 612                              (dv_attr.tunnel_offloads_caps &
 613                               MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_GENEVE));
 614         }
 615         DRV_LOG(DEBUG, "tunnel offloading is %ssupported",
 616                 tunnel_en ? "" : "not ");
 617 #else
 618         DRV_LOG(WARNING,
 619                 "tunnel offloading disabled due to old OFED/rdma-core version");
 620 #endif
 621         config.tunnel_en = tunnel_en;
 622 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 623         mpls_en = ((dv_attr.tunnel_offloads_caps &
 624                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
 625                    (dv_attr.tunnel_offloads_caps &
 626                     MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
 627         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported",
 628                 mpls_en ? "" : "not ");
 629 #else
 630         DRV_LOG(WARNING, "MPLS over GRE/UDP tunnel offloading disabled due to"
 631                 " old OFED/rdma-core version or firmware configuration");
 632 #endif
 633         config.mpls_en = mpls_en;
 634         /* Check port status. */
 635         err = mlx5_glue->query_port(sh->ctx, spawn->phys_port, &port_attr);
 636         if (err) {
 637                 DRV_LOG(ERR, "port query failed: %s", strerror(err));
 638                 goto error;
 639         }
 640         if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
 641                 DRV_LOG(ERR, "port is not configured in Ethernet mode");
 642                 err = EINVAL;
 643                 goto error;
 644         }
 645         if (port_attr.state != IBV_PORT_ACTIVE)
 646                 DRV_LOG(DEBUG, "port is not active: \"%s\" (%d)",
 647                         mlx5_glue->port_state_str(port_attr.state),
 648                         port_attr.state);
 649         /* Allocate private eth device data. */
 650         priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
 651                            sizeof(*priv),
 652                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
 653         if (priv == NULL) {
 654                 DRV_LOG(ERR, "priv allocation failure");
 655                 err = ENOMEM;
 656                 goto error;
 657         }
 658         priv->sh = sh;
 659         priv->dev_port = spawn->phys_port;
 660         priv->pci_dev = spawn->pci_dev;
 661         priv->mtu = RTE_ETHER_MTU;
 662         priv->mp_id.port_id = port_id;
 663         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
 664         /* Some internal functions rely on Netlink sockets, open them now. */
 665         priv->nl_socket_rdma = mlx5_nl_init(NETLINK_RDMA);
 666         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE);
 667         priv->representor = !!switch_info->representor;
 668         priv->master = !!switch_info->master;
 669         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
 670         priv->vport_meta_tag = 0;
 671         priv->vport_meta_mask = 0;
 672         priv->pf_bond = spawn->pf_bond;
 673 #ifdef HAVE_MLX5DV_DR_DEVX_PORT
 674         /*
 675          * The DevX port query API is implemented. E-Switch may use
 676          * either vport or reg_c[0] metadata register to match on
 677          * vport index. The engaged part of metadata register is
 678          * defined by mask.
 679          */
 680         if (switch_info->representor || switch_info->master) {
 681                 devx_port.comp_mask = MLX5DV_DEVX_PORT_VPORT |
 682                                       MLX5DV_DEVX_PORT_MATCH_REG_C_0;
 683                 err = mlx5_glue->devx_port_query(sh->ctx, spawn->phys_port,
 684                                                  &devx_port);
 685                 if (err) {
 686                         DRV_LOG(WARNING,
 687                                 "can't query devx port %d on device %s",
 688                                 spawn->phys_port,
 689                                 mlx5_os_get_dev_device_name(spawn->phys_dev));
 690                         devx_port.comp_mask = 0;
 691                 }
 692         }
 693         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_MATCH_REG_C_0) {
 694                 priv->vport_meta_tag = devx_port.reg_c_0.value;
 695                 priv->vport_meta_mask = devx_port.reg_c_0.mask;
 696                 if (!priv->vport_meta_mask) {
 697                         DRV_LOG(ERR, "vport zero mask for port %d"
 698                                      " on bonding device %s",
 699                                      spawn->phys_port,
 700                                      mlx5_os_get_dev_device_name
 701                                                         (spawn->phys_dev));
 702                         err = ENOTSUP;
 703                         goto error;
 704                 }
 705                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
 706                         DRV_LOG(ERR, "invalid vport tag for port %d"
 707                                      " on bonding device %s",
 708                                      spawn->phys_port,
 709                                      mlx5_os_get_dev_device_name
 710                                                         (spawn->phys_dev));
 711                         err = ENOTSUP;
 712                         goto error;
 713                 }
 714         }
 715         if (devx_port.comp_mask & MLX5DV_DEVX_PORT_VPORT) {
 716                 priv->vport_id = devx_port.vport_num;
 717         } else if (spawn->pf_bond >= 0) {
 718                 DRV_LOG(ERR, "can't deduce vport index for port %d"
 719                              " on bonding device %s",
 720                              spawn->phys_port,
 721                              mlx5_os_get_dev_device_name(spawn->phys_dev));
 722                 err = ENOTSUP;
 723                 goto error;
 724         } else {
 725                 /* Suppose vport index in compatible way. */
 726                 priv->vport_id = switch_info->representor ?
 727                                  switch_info->port_name + 1 : -1;
 728         }
 729 #else
 730         /*
 731          * Kernel/rdma_core support single E-Switch per PF configurations
 732          * only and vport_id field contains the vport index for
 733          * associated VF, which is deduced from representor port name.
 734          * For example, let's have the IB device port 10, it has
 735          * attached network device eth0, which has port name attribute
 736          * pf0vf2, we can deduce the VF number as 2, and set vport index
 737          * as 3 (2+1). This assigning schema should be changed if the
 738          * multiple E-Switch instances per PF configurations or/and PCI
 739          * subfunctions are added.
 740          */
 741         priv->vport_id = switch_info->representor ?
 742                          switch_info->port_name + 1 : -1;
 743 #endif
 744         /* representor_id field keeps the unmodified VF index. */
 745         priv->representor_id = switch_info->representor ?
 746                                switch_info->port_name : -1;
 747         /*
 748          * Look for sibling devices in order to reuse their switch domain
 749          * if any, otherwise allocate one.
 750          */
 751         MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
 752                 const struct mlx5_priv *opriv =
 753                         rte_eth_devices[port_id].data->dev_private;
 754
 755                 if (!opriv ||
 756                     opriv->sh != priv->sh ||
 757                         opriv->domain_id ==
 758                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
 759                         continue;
 760                 priv->domain_id = opriv->domain_id;
 761                 break;
 762         }
 763         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
 764                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
 765                 if (err) {
 766                         err = rte_errno;
 767                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
 768                                 strerror(rte_errno));
 769                         goto error;
 770                 }
 771                 own_domain_id = 1;
 772         }
 773         /* Override some values set by hardware configuration. */
 774         mlx5_args(&config, dpdk_dev->devargs);
 775         err = mlx5_dev_check_sibling_config(priv, &config);
 776         if (err)
 777                 goto error;
 778         config.hw_csum = !!(sh->device_attr.device_cap_flags_ex &
 779                             IBV_DEVICE_RAW_IP_CSUM);
 780         DRV_LOG(DEBUG, "checksum offloading is %ssupported",
 781                 (config.hw_csum ? "" : "not "));
 782 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
 783         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 784         DRV_LOG(DEBUG, "counters are not supported");
 785 #endif
 786 #if !defined(HAVE_IBV_FLOW_DV_SUPPORT) || !defined(HAVE_MLX5DV_DR)
 787         if (config.dv_flow_en) {
 788                 DRV_LOG(WARNING, "DV flow is not supported");
 789                 config.dv_flow_en = 0;
 790         }
 791 #endif
 792         config.ind_table_max_size =
 793                 sh->device_attr.max_rwq_indirection_table_size;
 794         /*
 795          * Remove this check once DPDK supports larger/variable
 796          * indirection tables.
 797          */
 798         if (config.ind_table_max_size > (unsigned int)ETH_RSS_RETA_SIZE_512)
 799                 config.ind_table_max_size = ETH_RSS_RETA_SIZE_512;
 800         DRV_LOG(DEBUG, "maximum Rx indirection table size is %u",
 801                 config.ind_table_max_size);
 802         config.hw_vlan_strip = !!(sh->device_attr.raw_packet_caps &
 803                                   IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
 804         DRV_LOG(DEBUG, "VLAN stripping is %ssupported",
 805                 (config.hw_vlan_strip ? "" : "not "));
 806         config.hw_fcs_strip = !!(sh->device_attr.raw_packet_caps &
 807                                  IBV_RAW_PACKET_CAP_SCATTER_FCS);
 808 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
 809         hw_padding = !!sh->device_attr.rx_pad_end_addr_align;
 810 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
 811         hw_padding = !!(sh->device_attr.device_cap_flags_ex &
 812                         IBV_DEVICE_PCI_WRITE_END_PADDING);
 813 #endif
 814         if (config.hw_padding && !hw_padding) {
 815                 DRV_LOG(DEBUG, "Rx end alignment padding isn't supported");
 816                 config.hw_padding = 0;
 817         } else if (config.hw_padding) {
 818                 DRV_LOG(DEBUG, "Rx end alignment padding is enabled");
 819         }
 820         config.tso = (sh->device_attr.max_tso > 0 &&
 821                       (sh->device_attr.tso_supported_qpts &
 822                        (1 << IBV_QPT_RAW_PACKET)));
 823         if (config.tso)
 824                 config.tso_max_payload_sz = sh->device_attr.max_tso;
 825         /*
 826          * MPW is disabled by default, while the Enhanced MPW is enabled
 827          * by default.
 828          */
 829         if (config.mps == MLX5_ARG_UNSET)
 830                 config.mps = (mps == MLX5_MPW_ENHANCED) ? MLX5_MPW_ENHANCED :
 831                                                           MLX5_MPW_DISABLED;
 832         else
 833                 config.mps = config.mps ? mps : MLX5_MPW_DISABLED;
 834         DRV_LOG(INFO, "%sMPS is %s",
 835                 config.mps == MLX5_MPW_ENHANCED ? "enhanced " :
 836                 config.mps == MLX5_MPW ? "legacy " : "",
 837                 config.mps != MLX5_MPW_DISABLED ? "enabled" : "disabled");
 838         if (config.cqe_comp && !cqe_comp) {
 839                 DRV_LOG(WARNING, "Rx CQE compression isn't supported");
 840                 config.cqe_comp = 0;
 841         }
 842         if (config.cqe_pad && !cqe_pad) {
 843                 DRV_LOG(WARNING, "Rx CQE padding isn't supported");
 844                 config.cqe_pad = 0;
 845         } else if (config.cqe_pad) {
 846                 DRV_LOG(INFO, "Rx CQE padding is enabled");
 847         }
 848         if (config.devx) {
 849                 priv->counter_fallback = 0;
 850                 err = mlx5_devx_cmd_query_hca_attr(sh->ctx, &config.hca_attr);
 851                 if (err) {
 852                         err = -err;
 853                         goto error;
 854                 }
 855                 if (!config.hca_attr.flow_counters_dump)
 856                         priv->counter_fallback = 1;
 857 #ifndef HAVE_IBV_DEVX_ASYNC
 858                 priv->counter_fallback = 1;
 859 #endif
 860                 if (priv->counter_fallback)
 861                         DRV_LOG(INFO, "Use fall-back DV counter management");
 862                 /* Check for LRO support. */
 863                 if (config.dest_tir && config.hca_attr.lro_cap &&
 864                     config.dv_flow_en) {
 865                         /* TBD check tunnel lro caps. */
 866                         config.lro.supported = config.hca_attr.lro_cap;
 867                         DRV_LOG(DEBUG, "Device supports LRO");
 868                         /*
 869                          * If LRO timeout is not configured by application,
 870                          * use the minimal supported value.
 871                          */
 872                         if (!config.lro.timeout)
 873                                 config.lro.timeout =
 874                                 config.hca_attr.lro_timer_supported_periods[0];
 875                         DRV_LOG(DEBUG, "LRO session timeout set to %d usec",
 876                                 config.lro.timeout);
 877                 }
 878 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER)
 879                 if (config.hca_attr.qos.sup && config.hca_attr.qos.srtcm_sup &&
 880                     config.dv_flow_en) {
 881                         uint8_t reg_c_mask =
 882                                 config.hca_attr.qos.flow_meter_reg_c_ids;
 883                         /*
 884                          * Meter needs two REG_C's for color match and pre-sfx
 885                          * flow match. Here get the REG_C for color match.
 886                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
 887                          */
 888                         reg_c_mask &= 0xfc;
 889                         if (__builtin_popcount(reg_c_mask) < 1) {
 890                                 priv->mtr_en = 0;
 891                                 DRV_LOG(WARNING, "No available register for"
 892                                         " meter.");
 893                         } else {
 894                                 priv->mtr_color_reg = ffs(reg_c_mask) - 1 +
 895                                                       REG_C_0;
 896                                 priv->mtr_en = 1;
 897                                 priv->mtr_reg_share =
 898                                       config.hca_attr.qos.flow_meter_reg_share;
 899                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
 900                                         priv->mtr_color_reg);
 901                         }
 902                 }
 903 #endif
 904         }
 905         if (config.tx_pp) {
 906                 DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz",
 907                         config.hca_attr.dev_freq_khz);
 908                 DRV_LOG(DEBUG, "Packet pacing is %ssupported",
 909                         config.hca_attr.qos.packet_pacing ? "" : "not ");
 910                 DRV_LOG(DEBUG, "Cross channel ops are %ssupported",
 911                         config.hca_attr.cross_channel ? "" : "not ");
 912                 DRV_LOG(DEBUG, "WQE index ignore is %ssupported",
 913                         config.hca_attr.wqe_index_ignore ? "" : "not ");
 914                 DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported",
 915                         config.hca_attr.non_wire_sq ? "" : "not ");
 916                 DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
 917                         config.hca_attr.log_max_static_sq_wq ? "" : "not ",
 918                         config.hca_attr.log_max_static_sq_wq);
 919                 DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported",
 920                         config.hca_attr.qos.wqe_rate_pp ? "" : "not ");
 921                 if (!config.devx) {
 922                         DRV_LOG(ERR, "DevX is required for packet pacing");
 923                         err = ENODEV;
 924                         goto error;
 925                 }
 926                 if (!config.hca_attr.qos.packet_pacing) {
 927                         DRV_LOG(ERR, "Packet pacing is not supported");
 928                         err = ENODEV;
 929                         goto error;
 930                 }
 931                 if (!config.hca_attr.cross_channel) {
 932                         DRV_LOG(ERR, "Cross channel operations are"
 933                                      " required for packet pacing");
 934                         err = ENODEV;
 935                         goto error;
 936                 }
 937                 if (!config.hca_attr.wqe_index_ignore) {
 938                         DRV_LOG(ERR, "WQE index ignore feature is"
 939                                      " required for packet pacing");
 940                         err = ENODEV;
 941                         goto error;
 942                 }
 943                 if (!config.hca_attr.non_wire_sq) {
 944                         DRV_LOG(ERR, "Non-wire SQ feature is"
 945                                      " required for packet pacing");
 946                         err = ENODEV;
 947                         goto error;
 948                 }
 949                 if (!config.hca_attr.log_max_static_sq_wq) {
 950                         DRV_LOG(ERR, "Static WQE SQ feature is"
 951                                      " required for packet pacing");
 952                         err = ENODEV;
 953                         goto error;
 954                 }
 955                 if (!config.hca_attr.qos.wqe_rate_pp) {
 956                         DRV_LOG(ERR, "WQE rate mode is required"
 957                                      " for packet pacing");
 958                         err = ENODEV;
 959                         goto error;
 960                 }
 961 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
 962                 DRV_LOG(ERR, "DevX does not provide UAR offset,"
 963                              " can't create queues for packet pacing");
 964                 err = ENODEV;
 965                 goto error;
 966 #endif
 967         }
 968         if (config.devx) {
 969                 uint32_t reg[MLX5_ST_SZ_DW(register_mtutc)];
 970
 971                 err = mlx5_devx_cmd_register_read
 972                         (sh->ctx, MLX5_REGISTER_ID_MTUTC, 0,
 973                         reg, MLX5_ST_SZ_DW(register_mtutc));
 974                 if (!err) {
 975                         uint32_t ts_mode;
 976
 977                         /* MTUTC register is read successfully. */
 978                         ts_mode = MLX5_GET(register_mtutc, reg,
 979                                            time_stamp_mode);
 980                         if (ts_mode == MLX5_MTUTC_TIMESTAMP_MODE_REAL_TIME)
 981                                 config.rt_timestamp = 1;
 982                 } else {
 983                         /* Kernel does not support register reading. */
 984                         if (config.hca_attr.dev_freq_khz ==
 985                                                  (NS_PER_S / MS_PER_S))
 986                                 config.rt_timestamp = 1;
 987                 }
 988         }
 989         /*
 990          * If HW has bug working with tunnel packet decapsulation and
 991          * scatter FCS, and decapsulation is needed, clear the hw_fcs_strip
 992          * bit. Then DEV_RX_OFFLOAD_KEEP_CRC bit will not be set anymore.
 993          */
 994         if (config.hca_attr.scatter_fcs_w_decap_disable && config.decap_en)
 995                 config.hw_fcs_strip = 0;
 996         DRV_LOG(DEBUG, "FCS stripping configuration is %ssupported",
 997                 (config.hw_fcs_strip ? "" : "not "));
 998         if (config.mprq.enabled && mprq) {
 999                 if (config.mprq.stride_num_n &&
1000                     (config.mprq.stride_num_n > mprq_max_stride_num_n ||
1001                      config.mprq.stride_num_n < mprq_min_stride_num_n)) {
1002                         config.mprq.stride_num_n =
1003                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_NUM_N,
1004                                                 mprq_min_stride_num_n),
1005                                         mprq_max_stride_num_n);
1006                         DRV_LOG(WARNING,
1007                                 "the number of strides"
1008                                 " for Multi-Packet RQ is out of range,"
1009                                 " setting default value (%u)",
1010                                 1 << config.mprq.stride_num_n);
1011                 }
1012                 if (config.mprq.stride_size_n &&
1013                     (config.mprq.stride_size_n > mprq_max_stride_size_n ||
1014                      config.mprq.stride_size_n < mprq_min_stride_size_n)) {
1015                         config.mprq.stride_size_n =
1016                                 RTE_MIN(RTE_MAX(MLX5_MPRQ_STRIDE_SIZE_N,
1017                                                 mprq_min_stride_size_n),
1018                                         mprq_max_stride_size_n);
1019                         DRV_LOG(WARNING,
1020                                 "the size of a stride"
1021                                 " for Multi-Packet RQ is out of range,"
1022                                 " setting default value (%u)",
1023                                 1 << config.mprq.stride_size_n);
1024                 }
1025                 config.mprq.min_stride_size_n = mprq_min_stride_size_n;
1026                 config.mprq.max_stride_size_n = mprq_max_stride_size_n;
1027         } else if (config.mprq.enabled && !mprq) {
1028                 DRV_LOG(WARNING, "Multi-Packet RQ isn't supported");
1029                 config.mprq.enabled = 0;
1030         }
1031         if (config.max_dump_files_num == 0)
1032                 config.max_dump_files_num = 128;
1033         eth_dev = rte_eth_dev_allocate(name);
1034         if (eth_dev == NULL) {
1035                 DRV_LOG(ERR, "can not allocate rte ethdev");
1036                 err = ENOMEM;
1037                 goto error;
1038         }
1039         /* Flag to call rte_eth_dev_release_port() in rte_eth_dev_close(). */
1040         eth_dev->data->dev_flags |= RTE_ETH_DEV_CLOSE_REMOVE;
1041         if (priv->representor) {
1042                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1043                 eth_dev->data->representor_id = priv->representor_id;
1044         }
1045         /*
1046          * Store associated network device interface index. This index
1047          * is permanent throughout the lifetime of device. So, we may store
1048          * the ifindex here and use the cached value further.
1049          */
1050         MLX5_ASSERT(spawn->ifindex);
1051         priv->if_index = spawn->ifindex;
1052         eth_dev->data->dev_private = priv;
1053         priv->dev_data = eth_dev->data;
1054         eth_dev->data->mac_addrs = priv->mac;
1055         eth_dev->device = dpdk_dev;
1056         /* Configure the first MAC address by default. */
1057         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1058                 DRV_LOG(ERR,
1059                         "port %u cannot get MAC address, is mlx5_en"
1060                         " loaded? (errno: %s)",
1061                         eth_dev->data->port_id, strerror(rte_errno));
1062                 err = ENODEV;
1063                 goto error;
1064         }
1065         DRV_LOG(INFO,
1066                 "port %u MAC address is %02x:%02x:%02x:%02x:%02x:%02x",
1067                 eth_dev->data->port_id,
1068                 mac.addr_bytes[0], mac.addr_bytes[1],
1069                 mac.addr_bytes[2], mac.addr_bytes[3],
1070                 mac.addr_bytes[4], mac.addr_bytes[5]);
1071 #ifdef RTE_LIBRTE_MLX5_DEBUG
1072         {
1073                 char ifname[IF_NAMESIZE];
1074
1075                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1076                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1077                                 eth_dev->data->port_id, ifname);
1078                 else
1079                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1080                                 eth_dev->data->port_id);
1081         }
1082 #endif
1083         /* Get actual MTU if possible. */
1084         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1085         if (err) {
1086                 err = rte_errno;
1087                 goto error;
1088         }
1089         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1090                 priv->mtu);
1091         /* Initialize burst functions to prevent crashes before link-up. */
1092         eth_dev->rx_pkt_burst = removed_rx_burst;
1093         eth_dev->tx_pkt_burst = removed_tx_burst;
1094         eth_dev->dev_ops = &mlx5_os_dev_ops;
1095         /* Register MAC address. */
1096         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1097         if (config.vf && config.vf_nl_en)
1098                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1099                                       mlx5_ifindex(eth_dev),
1100                                       eth_dev->data->mac_addrs,
1101                                       MLX5_MAX_MAC_ADDRESSES);
1102         priv->flows = 0;
1103         priv->ctrl_flows = 0;
1104         TAILQ_INIT(&priv->flow_meters);
1105         TAILQ_INIT(&priv->flow_meter_profiles);
1106         /* Hint libmlx5 to use PMD allocator for data plane resources */
1107         mlx5_glue->dv_set_context_attr(sh->ctx,
1108                         MLX5DV_CTX_ATTR_BUF_ALLOCATORS,
1109                         (void *)((uintptr_t)&(struct mlx5dv_ctx_allocators){
1110                                 .alloc = &mlx5_alloc_verbs_buf,
1111                                 .free = &mlx5_free_verbs_buf,
1112                                 .data = priv,
1113                         }));
1114         /* Bring Ethernet device up. */
1115         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1116                 eth_dev->data->port_id);
1117         mlx5_set_link_up(eth_dev);
1118         /*
1119          * Even though the interrupt handler is not installed yet,
1120          * interrupts will still trigger on the async_fd from
1121          * Verbs context returned by ibv_open_device().
1122          */
1123         mlx5_link_update(eth_dev, 0);
1124 #ifdef HAVE_MLX5DV_DR_ESWITCH
1125         if (!(config.hca_attr.eswitch_manager && config.dv_flow_en &&
1126               (switch_info->representor || switch_info->master)))
1127                 config.dv_esw_en = 0;
1128 #else
1129         config.dv_esw_en = 0;
1130 #endif
1131         /* Detect minimal data bytes to inline. */
1132         mlx5_set_min_inline(spawn, &config);
1133         /* Store device configuration on private structure. */
1134         priv->config = config;
1135         /* Create context for virtual machine VLAN workaround. */
1136         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1137         if (config.dv_flow_en) {
1138                 err = mlx5_alloc_shared_dr(priv);
1139                 if (err)
1140                         goto error;
1141                 /*
1142                  * RSS id is shared with meter flow id. Meter flow id can only
1143                  * use the 24 MSB of the register.
1144                  */
1145                 priv->qrss_id_pool = mlx5_flow_id_pool_alloc(UINT32_MAX >>
1146                                      MLX5_MTR_COLOR_BITS);
1147                 if (!priv->qrss_id_pool) {
1148                         DRV_LOG(ERR, "can't create flow id pool");
1149                         err = ENOMEM;
1150                         goto error;
1151                 }
1152         }
1153         /* Supported Verbs flow priority number detection. */
1154         err = mlx5_flow_discover_priorities(eth_dev);
1155         if (err < 0) {
1156                 err = -err;
1157                 goto error;
1158         }
1159         priv->config.flow_prio = err;
1160         if (!priv->config.dv_esw_en &&
1161             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1162                 DRV_LOG(WARNING, "metadata mode %u is not supported "
1163                                  "(no E-Switch)", priv->config.dv_xmeta_en);
1164                 priv->config.dv_xmeta_en = MLX5_XMETA_MODE_LEGACY;
1165         }
1166         mlx5_set_metadata_mask(eth_dev);
1167         if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1168             !priv->sh->dv_regc0_mask) {
1169                 DRV_LOG(ERR, "metadata mode %u is not supported "
1170                              "(no metadata reg_c[0] is available)",
1171                              priv->config.dv_xmeta_en);
1172                         err = ENOTSUP;
1173                         goto error;
1174         }
1175         /*
1176          * Allocate the buffer for flow creating, just once.
1177          * The allocation must be done before any flow creating.
1178          */
1179         mlx5_flow_alloc_intermediate(eth_dev);
1180         /* Query availability of metadata reg_c's. */
1181         err = mlx5_flow_discover_mreg_c(eth_dev);
1182         if (err < 0) {
1183                 err = -err;
1184                 goto error;
1185         }
1186         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1187                 DRV_LOG(DEBUG,
1188                         "port %u extensive metadata register is not supported",
1189                         eth_dev->data->port_id);
1190                 if (priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1191                         DRV_LOG(ERR, "metadata mode %u is not supported "
1192                                      "(no metadata registers available)",
1193                                      priv->config.dv_xmeta_en);
1194                         err = ENOTSUP;
1195                         goto error;
1196                 }
1197         }
1198         if (priv->config.dv_flow_en &&
1199             priv->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1200             mlx5_flow_ext_mreg_supported(eth_dev) &&
1201             priv->sh->dv_regc0_mask) {
1202                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1203                                                       MLX5_FLOW_MREG_HTABLE_SZ);
1204                 if (!priv->mreg_cp_tbl) {
1205                         err = ENOMEM;
1206                         goto error;
1207                 }
1208         }
1209         return eth_dev;
1210 error:
1211         if (priv) {
1212                 if (priv->mreg_cp_tbl)
1213                         mlx5_hlist_destroy(priv->mreg_cp_tbl, NULL, NULL);
1214                 if (priv->sh)
1215                         mlx5_os_free_shared_dr(priv);
1216                 if (priv->nl_socket_route >= 0)
1217                         close(priv->nl_socket_route);
1218                 if (priv->nl_socket_rdma >= 0)
1219                         close(priv->nl_socket_rdma);
1220                 if (priv->vmwa_context)
1221                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1222                 if (priv->qrss_id_pool)
1223                         mlx5_flow_id_pool_release(priv->qrss_id_pool);
1224                 if (own_domain_id)
1225                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1226                 mlx5_free(priv);
1227                 if (eth_dev != NULL)
1228                         eth_dev->data->dev_private = NULL;
1229         }
1230         if (eth_dev != NULL) {
1231                 /* mac_addrs must not be freed alone because part of
1232                  * dev_private
1233                  **/
1234                 eth_dev->data->mac_addrs = NULL;
1235                 rte_eth_dev_release_port(eth_dev);
1236         }
1237         if (sh)
1238                 mlx5_free_shared_dev_ctx(sh);
1239         MLX5_ASSERT(err > 0);
1240         rte_errno = err;
1241         return NULL;
1242 }
1243
1244 /**
1245  * Comparison callback to sort device data.
1246  *
1247  * This is meant to be used with qsort().
1248  *
1249  * @param a[in]
1250  *   Pointer to pointer to first data object.
1251  * @param b[in]
1252  *   Pointer to pointer to second data object.
1253  *
1254  * @return
1255  *   0 if both objects are equal, less than 0 if the first argument is less
1256  *   than the second, greater than 0 otherwise.
1257  */
1258 static int
1259 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1260 {
1261         const struct mlx5_switch_info *si_a =
1262                 &((const struct mlx5_dev_spawn_data *)a)->info;
1263         const struct mlx5_switch_info *si_b =
1264                 &((const struct mlx5_dev_spawn_data *)b)->info;
1265         int ret;
1266
1267         /* Master device first. */
1268         ret = si_b->master - si_a->master;
1269         if (ret)
1270                 return ret;
1271         /* Then representor devices. */
1272         ret = si_b->representor - si_a->representor;
1273         if (ret)
1274                 return ret;
1275         /* Unidentified devices come last in no specific order. */
1276         if (!si_a->representor)
1277                 return 0;
1278         /* Order representors by name. */
1279         return si_a->port_name - si_b->port_name;
1280 }
1281
1282 /**
1283  * Match PCI information for possible slaves of bonding device.
1284  *
1285  * @param[in] ibv_dev
1286  *   Pointer to Infiniband device structure.
1287  * @param[in] pci_dev
1288  *   Pointer to PCI device structure to match PCI address.
1289  * @param[in] nl_rdma
1290  *   Netlink RDMA group socket handle.
1291  *
1292  * @return
1293  *   negative value if no bonding device found, otherwise
1294  *   positive index of slave PF in bonding.
1295  */
1296 static int
1297 mlx5_device_bond_pci_match(const struct ibv_device *ibv_dev,
1298                            const struct rte_pci_device *pci_dev,
1299                            int nl_rdma)
1300 {
1301         char ifname[IF_NAMESIZE + 1];
1302         unsigned int ifindex;
1303         unsigned int np, i;
1304         FILE *file = NULL;
1305         int pf = -1;
1306
1307         /*
1308          * Try to get master device name. If something goes
1309          * wrong suppose the lack of kernel support and no
1310          * bonding devices.
1311          */
1312         if (nl_rdma < 0)
1313                 return -1;
1314         if (!strstr(ibv_dev->name, "bond"))
1315                 return -1;
1316         np = mlx5_nl_portnum(nl_rdma, ibv_dev->name);
1317         if (!np)
1318                 return -1;
1319         /*
1320          * The Master device might not be on the predefined
1321          * port (not on port index 1, it is not garanted),
1322          * we have to scan all Infiniband device port and
1323          * find master.
1324          */
1325         for (i = 1; i <= np; ++i) {
1326                 /* Check whether Infiniband port is populated. */
1327                 ifindex = mlx5_nl_ifindex(nl_rdma, ibv_dev->name, i);
1328                 if (!ifindex)
1329                         continue;
1330                 if (!if_indextoname(ifindex, ifname))
1331                         continue;
1332                 /* Try to read bonding slave names from sysfs. */
1333                 MKSTR(slaves,
1334                       "/sys/class/net/%s/master/bonding/slaves", ifname);
1335                 file = fopen(slaves, "r");
1336                 if (file)
1337                         break;
1338         }
1339         if (!file)
1340                 return -1;
1341         /* Use safe format to check maximal buffer length. */
1342         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1343         while (fscanf(file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1344                 char tmp_str[IF_NAMESIZE + 32];
1345                 struct rte_pci_addr pci_addr;
1346                 struct mlx5_switch_info info;
1347
1348                 /* Process slave interface names in the loop. */
1349                 snprintf(tmp_str, sizeof(tmp_str),
1350                          "/sys/class/net/%s", ifname);
1351                 if (mlx5_dev_to_pci_addr(tmp_str, &pci_addr)) {
1352                         DRV_LOG(WARNING, "can not get PCI address"
1353                                          " for netdev \"%s\"", ifname);
1354                         continue;
1355                 }
1356                 if (pci_dev->addr.domain != pci_addr.domain ||
1357                     pci_dev->addr.bus != pci_addr.bus ||
1358                     pci_dev->addr.devid != pci_addr.devid ||
1359                     pci_dev->addr.function != pci_addr.function)
1360                         continue;
1361                 /* Slave interface PCI address match found. */
1362                 fclose(file);
1363                 snprintf(tmp_str, sizeof(tmp_str),
1364                          "/sys/class/net/%s/phys_port_name", ifname);
1365                 file = fopen(tmp_str, "rb");
1366                 if (!file)
1367                         break;
1368                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1369                 if (fscanf(file, "%32s", tmp_str) == 1)
1370                         mlx5_translate_port_name(tmp_str, &info);
1371                 if (info.name_type == MLX5_PHYS_PORT_NAME_TYPE_LEGACY ||
1372                     info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1373                         pf = info.port_name;
1374                 break;
1375         }
1376         if (file)
1377                 fclose(file);
1378         return pf;
1379 }
1380
1381 /**
1382  * DPDK callback to register a PCI device.
1383  *
1384  * This function spawns Ethernet devices out of a given PCI device.
1385  *
1386  * @param[in] pci_drv
1387  *   PCI driver structure (mlx5_driver).
1388  * @param[in] pci_dev
1389  *   PCI device information.
1390  *
1391  * @return
1392  *   0 on success, a negative errno value otherwise and rte_errno is set.
1393  */
1394 int
1395 mlx5_os_pci_probe(struct rte_pci_driver *pci_drv __rte_unused,
1396                   struct rte_pci_device *pci_dev)
1397 {
1398         struct ibv_device **ibv_list;
1399         /*
1400          * Number of found IB Devices matching with requested PCI BDF.
1401          * nd != 1 means there are multiple IB devices over the same
1402          * PCI device and we have representors and master.
1403          */
1404         unsigned int nd = 0;
1405         /*
1406          * Number of found IB device Ports. nd = 1 and np = 1..n means
1407          * we have the single multiport IB device, and there may be
1408          * representors attached to some of found ports.
1409          */
1410         unsigned int np = 0;
1411         /*
1412          * Number of DPDK ethernet devices to Spawn - either over
1413          * multiple IB devices or multiple ports of single IB device.
1414          * Actually this is the number of iterations to spawn.
1415          */
1416         unsigned int ns = 0;
1417         /*
1418          * Bonding device
1419          *   < 0 - no bonding device (single one)
1420          *  >= 0 - bonding device (value is slave PF index)
1421          */
1422         int bd = -1;
1423         struct mlx5_dev_spawn_data *list = NULL;
1424         struct mlx5_dev_config dev_config;
1425         int ret;
1426
1427         if (mlx5_class_get(pci_dev->device.devargs) != MLX5_CLASS_NET) {
1428                 DRV_LOG(DEBUG, "Skip probing - should be probed by other mlx5"
1429                         " driver.");
1430                 return 1;
1431         }
1432         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
1433                 mlx5_pmd_socket_init();
1434         ret = mlx5_init_once();
1435         if (ret) {
1436                 DRV_LOG(ERR, "unable to init PMD global data: %s",
1437                         strerror(rte_errno));
1438                 return -rte_errno;
1439         }
1440         MLX5_ASSERT(pci_drv == &mlx5_driver);
1441         errno = 0;
1442         ibv_list = mlx5_glue->get_device_list(&ret);
1443         if (!ibv_list) {
1444                 rte_errno = errno ? errno : ENOSYS;
1445                 DRV_LOG(ERR, "cannot list devices, is ib_uverbs loaded?");
1446                 return -rte_errno;
1447         }
1448         /*
1449          * First scan the list of all Infiniband devices to find
1450          * matching ones, gathering into the list.
1451          */
1452         struct ibv_device *ibv_match[ret + 1];
1453         int nl_route = mlx5_nl_init(NETLINK_ROUTE);
1454         int nl_rdma = mlx5_nl_init(NETLINK_RDMA);
1455         unsigned int i;
1456
1457         while (ret-- > 0) {
1458                 struct rte_pci_addr pci_addr;
1459
1460                 DRV_LOG(DEBUG, "checking device \"%s\"", ibv_list[ret]->name);
1461                 bd = mlx5_device_bond_pci_match
1462                                 (ibv_list[ret], pci_dev, nl_rdma);
1463                 if (bd >= 0) {
1464                         /*
1465                          * Bonding device detected. Only one match is allowed,
1466                          * the bonding is supported over multi-port IB device,
1467                          * there should be no matches on representor PCI
1468                          * functions or non VF LAG bonding devices with
1469                          * specified address.
1470                          */
1471                         if (nd) {
1472                                 DRV_LOG(ERR,
1473                                         "multiple PCI match on bonding device"
1474                                         "\"%s\" found", ibv_list[ret]->name);
1475                                 rte_errno = ENOENT;
1476                                 ret = -rte_errno;
1477                                 goto exit;
1478                         }
1479                         DRV_LOG(INFO, "PCI information matches for"
1480                                       " slave %d bonding device \"%s\"",
1481                                       bd, ibv_list[ret]->name);
1482                         ibv_match[nd++] = ibv_list[ret];
1483                         break;
1484                 }
1485                 if (mlx5_dev_to_pci_addr
1486                         (ibv_list[ret]->ibdev_path, &pci_addr))
1487                         continue;
1488                 if (pci_dev->addr.domain != pci_addr.domain ||
1489                     pci_dev->addr.bus != pci_addr.bus ||
1490                     pci_dev->addr.devid != pci_addr.devid ||
1491                     pci_dev->addr.function != pci_addr.function)
1492                         continue;
1493                 DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1494                         ibv_list[ret]->name);
1495                 ibv_match[nd++] = ibv_list[ret];
1496         }
1497         ibv_match[nd] = NULL;
1498         if (!nd) {
1499                 /* No device matches, just complain and bail out. */
1500                 DRV_LOG(WARNING,
1501                         "no Verbs device matches PCI device " PCI_PRI_FMT ","
1502                         " are kernel drivers loaded?",
1503                         pci_dev->addr.domain, pci_dev->addr.bus,
1504                         pci_dev->addr.devid, pci_dev->addr.function);
1505                 rte_errno = ENOENT;
1506                 ret = -rte_errno;
1507                 goto exit;
1508         }
1509         if (nd == 1) {
1510                 /*
1511                  * Found single matching device may have multiple ports.
1512                  * Each port may be representor, we have to check the port
1513                  * number and check the representors existence.
1514                  */
1515                 if (nl_rdma >= 0)
1516                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1517                 if (!np)
1518                         DRV_LOG(WARNING, "can not get IB device \"%s\""
1519                                          " ports number", ibv_match[0]->name);
1520                 if (bd >= 0 && !np) {
1521                         DRV_LOG(ERR, "can not get ports"
1522                                      " for bonding device");
1523                         rte_errno = ENOENT;
1524                         ret = -rte_errno;
1525                         goto exit;
1526                 }
1527         }
1528 #ifndef HAVE_MLX5DV_DR_DEVX_PORT
1529         if (bd >= 0) {
1530                 /*
1531                  * This may happen if there is VF LAG kernel support and
1532                  * application is compiled with older rdma_core library.
1533                  */
1534                 DRV_LOG(ERR,
1535                         "No kernel/verbs support for VF LAG bonding found.");
1536                 rte_errno = ENOTSUP;
1537                 ret = -rte_errno;
1538                 goto exit;
1539         }
1540 #endif
1541         /*
1542          * Now we can determine the maximal
1543          * amount of devices to be spawned.
1544          */
1545         list = mlx5_malloc(MLX5_MEM_ZERO,
1546                            sizeof(struct mlx5_dev_spawn_data) *
1547                            (np ? np : nd),
1548                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1549         if (!list) {
1550                 DRV_LOG(ERR, "spawn data array allocation failure");
1551                 rte_errno = ENOMEM;
1552                 ret = -rte_errno;
1553                 goto exit;
1554         }
1555         if (bd >= 0 || np > 1) {
1556                 /*
1557                  * Single IB device with multiple ports found,
1558                  * it may be E-Switch master device and representors.
1559                  * We have to perform identification through the ports.
1560                  */
1561                 MLX5_ASSERT(nl_rdma >= 0);
1562                 MLX5_ASSERT(ns == 0);
1563                 MLX5_ASSERT(nd == 1);
1564                 MLX5_ASSERT(np);
1565                 for (i = 1; i <= np; ++i) {
1566                         list[ns].max_port = np;
1567                         list[ns].phys_port = i;
1568                         list[ns].phys_dev = ibv_match[0];
1569                         list[ns].eth_dev = NULL;
1570                         list[ns].pci_dev = pci_dev;
1571                         list[ns].pf_bond = bd;
1572                         list[ns].ifindex = mlx5_nl_ifindex
1573                                 (nl_rdma,
1574                                 mlx5_os_get_dev_device_name
1575                                                 (list[ns].phys_dev), i);
1576                         if (!list[ns].ifindex) {
1577                                 /*
1578                                  * No network interface index found for the
1579                                  * specified port, it means there is no
1580                                  * representor on this port. It's OK,
1581                                  * there can be disabled ports, for example
1582                                  * if sriov_numvfs < sriov_totalvfs.
1583                                  */
1584                                 continue;
1585                         }
1586                         ret = -1;
1587                         if (nl_route >= 0)
1588                                 ret = mlx5_nl_switch_info
1589                                                (nl_route,
1590                                                 list[ns].ifindex,
1591                                                 &list[ns].info);
1592                         if (ret || (!list[ns].info.representor &&
1593                                     !list[ns].info.master)) {
1594                                 /*
1595                                  * We failed to recognize representors with
1596                                  * Netlink, let's try to perform the task
1597                                  * with sysfs.
1598                                  */
1599                                 ret =  mlx5_sysfs_switch_info
1600                                                 (list[ns].ifindex,
1601                                                  &list[ns].info);
1602                         }
1603                         if (!ret && bd >= 0) {
1604                                 switch (list[ns].info.name_type) {
1605                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
1606                                         if (list[ns].info.port_name == bd)
1607                                                 ns++;
1608                                         break;
1609                                 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
1610                                         /* Fallthrough */
1611                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
1612                                         if (list[ns].info.pf_num == bd)
1613                                                 ns++;
1614                                         break;
1615                                 default:
1616                                         break;
1617                                 }
1618                                 continue;
1619                         }
1620                         if (!ret && (list[ns].info.representor ^
1621                                      list[ns].info.master))
1622                                 ns++;
1623                 }
1624                 if (!ns) {
1625                         DRV_LOG(ERR,
1626                                 "unable to recognize master/representors"
1627                                 " on the IB device with multiple ports");
1628                         rte_errno = ENOENT;
1629                         ret = -rte_errno;
1630                         goto exit;
1631                 }
1632         } else {
1633                 /*
1634                  * The existence of several matching entries (nd > 1) means
1635                  * port representors have been instantiated. No existing Verbs
1636                  * call nor sysfs entries can tell them apart, this can only
1637                  * be done through Netlink calls assuming kernel drivers are
1638                  * recent enough to support them.
1639                  *
1640                  * In the event of identification failure through Netlink,
1641                  * try again through sysfs, then:
1642                  *
1643                  * 1. A single IB device matches (nd == 1) with single
1644                  *    port (np=0/1) and is not a representor, assume
1645                  *    no switch support.
1646                  *
1647                  * 2. Otherwise no safe assumptions can be made;
1648                  *    complain louder and bail out.
1649                  */
1650                 for (i = 0; i != nd; ++i) {
1651                         memset(&list[ns].info, 0, sizeof(list[ns].info));
1652                         list[ns].max_port = 1;
1653                         list[ns].phys_port = 1;
1654                         list[ns].phys_dev = ibv_match[i];
1655                         list[ns].eth_dev = NULL;
1656                         list[ns].pci_dev = pci_dev;
1657                         list[ns].pf_bond = -1;
1658                         list[ns].ifindex = 0;
1659                         if (nl_rdma >= 0)
1660                                 list[ns].ifindex = mlx5_nl_ifindex
1661                                 (nl_rdma,
1662                                 mlx5_os_get_dev_device_name
1663                                                 (list[ns].phys_dev), 1);
1664                         if (!list[ns].ifindex) {
1665                                 char ifname[IF_NAMESIZE];
1666
1667                                 /*
1668                                  * Netlink failed, it may happen with old
1669                                  * ib_core kernel driver (before 4.16).
1670                                  * We can assume there is old driver because
1671                                  * here we are processing single ports IB
1672                                  * devices. Let's try sysfs to retrieve
1673                                  * the ifindex. The method works for
1674                                  * master device only.
1675                                  */
1676                                 if (nd > 1) {
1677                                         /*
1678                                          * Multiple devices found, assume
1679                                          * representors, can not distinguish
1680                                          * master/representor and retrieve
1681                                          * ifindex via sysfs.
1682                                          */
1683                                         continue;
1684                                 }
1685                                 ret = mlx5_get_ifname_sysfs
1686                                         (ibv_match[i]->ibdev_path, ifname);
1687                                 if (!ret)
1688                                         list[ns].ifindex =
1689                                                 if_nametoindex(ifname);
1690                                 if (!list[ns].ifindex) {
1691                                         /*
1692                                          * No network interface index found
1693                                          * for the specified device, it means
1694                                          * there it is neither representor
1695                                          * nor master.
1696                                          */
1697                                         continue;
1698                                 }
1699                         }
1700                         ret = -1;
1701                         if (nl_route >= 0)
1702                                 ret = mlx5_nl_switch_info
1703                                                (nl_route,
1704                                                 list[ns].ifindex,
1705                                                 &list[ns].info);
1706                         if (ret || (!list[ns].info.representor &&
1707                                     !list[ns].info.master)) {
1708                                 /*
1709                                  * We failed to recognize representors with
1710                                  * Netlink, let's try to perform the task
1711                                  * with sysfs.
1712                                  */
1713                                 ret =  mlx5_sysfs_switch_info
1714                                                 (list[ns].ifindex,
1715                                                  &list[ns].info);
1716                         }
1717                         if (!ret && (list[ns].info.representor ^
1718                                      list[ns].info.master)) {
1719                                 ns++;
1720                         } else if ((nd == 1) &&
1721                                    !list[ns].info.representor &&
1722                                    !list[ns].info.master) {
1723                                 /*
1724                                  * Single IB device with
1725                                  * one physical port and
1726                                  * attached network device.
1727                                  * May be SRIOV is not enabled
1728                                  * or there is no representors.
1729                                  */
1730                                 DRV_LOG(INFO, "no E-Switch support detected");
1731                                 ns++;
1732                                 break;
1733                         }
1734                 }
1735                 if (!ns) {
1736                         DRV_LOG(ERR,
1737                                 "unable to recognize master/representors"
1738                                 " on the multiple IB devices");
1739                         rte_errno = ENOENT;
1740                         ret = -rte_errno;
1741                         goto exit;
1742                 }
1743         }
1744         MLX5_ASSERT(ns);
1745         /*
1746          * Sort list to probe devices in natural order for users convenience
1747          * (i.e. master first, then representors from lowest to highest ID).
1748          */
1749         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
1750         /* Default configuration. */
1751         dev_config = (struct mlx5_dev_config){
1752                 .hw_padding = 0,
1753                 .mps = MLX5_ARG_UNSET,
1754                 .dbnc = MLX5_ARG_UNSET,
1755                 .rx_vec_en = 1,
1756                 .txq_inline_max = MLX5_ARG_UNSET,
1757                 .txq_inline_min = MLX5_ARG_UNSET,
1758                 .txq_inline_mpw = MLX5_ARG_UNSET,
1759                 .txqs_inline = MLX5_ARG_UNSET,
1760                 .vf_nl_en = 1,
1761                 .mr_ext_memseg_en = 1,
1762                 .mprq = {
1763                         .enabled = 0, /* Disabled by default. */
1764                         .stride_num_n = 0,
1765                         .stride_size_n = 0,
1766                         .max_memcpy_len = MLX5_MPRQ_MEMCPY_DEFAULT_LEN,
1767                         .min_rxqs_num = MLX5_MPRQ_MIN_RXQS,
1768                 },
1769                 .dv_esw_en = 1,
1770                 .dv_flow_en = 1,
1771                 .decap_en = 1,
1772                 .log_hp_size = MLX5_ARG_UNSET,
1773         };
1774         /* Device specific configuration. */
1775         switch (pci_dev->id.device_id) {
1776         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1777         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
1778         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
1779         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
1780         case PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF:
1781         case PCI_DEVICE_ID_MELLANOX_CONNECTX6VF:
1782         case PCI_DEVICE_ID_MELLANOX_CONNECTX6DXVF:
1783                 dev_config.vf = 1;
1784                 break;
1785         default:
1786                 break;
1787         }
1788         for (i = 0; i != ns; ++i) {
1789                 uint32_t restore;
1790
1791                 list[i].eth_dev = mlx5_dev_spawn(&pci_dev->device,
1792                                                  &list[i],
1793                                                  dev_config);
1794                 if (!list[i].eth_dev) {
1795                         if (rte_errno != EBUSY && rte_errno != EEXIST)
1796                                 break;
1797                         /* Device is disabled or already spawned. Ignore it. */
1798                         continue;
1799                 }
1800                 restore = list[i].eth_dev->data->dev_flags;
1801                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
1802                 /* Restore non-PCI flags cleared by the above call. */
1803                 list[i].eth_dev->data->dev_flags |= restore;
1804                 rte_eth_dev_probing_finish(list[i].eth_dev);
1805         }
1806         if (i != ns) {
1807                 DRV_LOG(ERR,
1808                         "probe of PCI device " PCI_PRI_FMT " aborted after"
1809                         " encountering an error: %s",
1810                         pci_dev->addr.domain, pci_dev->addr.bus,
1811                         pci_dev->addr.devid, pci_dev->addr.function,
1812                         strerror(rte_errno));
1813                 ret = -rte_errno;
1814                 /* Roll back. */
1815                 while (i--) {
1816                         if (!list[i].eth_dev)
1817                                 continue;
1818                         mlx5_dev_close(list[i].eth_dev);
1819                         /* mac_addrs must not be freed because in dev_private */
1820                         list[i].eth_dev->data->mac_addrs = NULL;
1821                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
1822                 }
1823                 /* Restore original error. */
1824                 rte_errno = -ret;
1825         } else {
1826                 ret = 0;
1827         }
1828 exit:
1829         /*
1830          * Do the routine cleanup:
1831          * - close opened Netlink sockets
1832          * - free allocated spawn data array
1833          * - free the Infiniband device list
1834          */
1835         if (nl_rdma >= 0)
1836                 close(nl_rdma);
1837         if (nl_route >= 0)
1838                 close(nl_route);
1839         if (list)
1840                 mlx5_free(list);
1841         MLX5_ASSERT(ibv_list);
1842         mlx5_glue->free_device_list(ibv_list);
1843         return ret;
1844 }
1845
1846 static int
1847 mlx5_config_doorbell_mapping_env(const struct mlx5_dev_config *config)
1848 {
1849         char *env;
1850         int value;
1851
1852         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1853         /* Get environment variable to store. */
1854         env = getenv(MLX5_SHUT_UP_BF);
1855         value = env ? !!strcmp(env, "0") : MLX5_ARG_UNSET;
1856         if (config->dbnc == MLX5_ARG_UNSET)
1857                 setenv(MLX5_SHUT_UP_BF, MLX5_SHUT_UP_BF_DEFAULT, 1);
1858         else
1859                 setenv(MLX5_SHUT_UP_BF,
1860                        config->dbnc == MLX5_TXDB_NCACHED ? "1" : "0", 1);
1861         return value;
1862 }
1863
1864 static void
1865 mlx5_restore_doorbell_mapping_env(int value)
1866 {
1867         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1868         /* Restore the original environment variable state. */
1869         if (value == MLX5_ARG_UNSET)
1870                 unsetenv(MLX5_SHUT_UP_BF);
1871         else
1872                 setenv(MLX5_SHUT_UP_BF, value ? "1" : "0", 1);
1873 }
1874
1875 /**
1876  * Extract pdn of PD object using DV API.
1877  *
1878  * @param[in] pd
1879  *   Pointer to the verbs PD object.
1880  * @param[out] pdn
1881  *   Pointer to the PD object number variable.
1882  *
1883  * @return
1884  *   0 on success, error value otherwise.
1885  */
1886 int
1887 mlx5_os_get_pdn(void *pd, uint32_t *pdn)
1888 {
1889 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
1890         struct mlx5dv_obj obj;
1891         struct mlx5dv_pd pd_info;
1892         int ret = 0;
1893
1894         obj.pd.in = pd;
1895         obj.pd.out = &pd_info;
1896         ret = mlx5_glue->dv_init_obj(&obj, MLX5DV_OBJ_PD);
1897         if (ret) {
1898                 DRV_LOG(DEBUG, "Fail to get PD object info");
1899                 return ret;
1900         }
1901         *pdn = pd_info.pdn;
1902         return 0;
1903 #else
1904         (void)pd;
1905         (void)pdn;
1906         return -ENOTSUP;
1907 #endif /* HAVE_IBV_FLOW_DV_SUPPORT */
1908 }
1909
1910 /**
1911  * Function API to open IB device.
1912  *
1913  * This function calls the Linux glue APIs to open a device.
1914  *
1915  * @param[in] spawn
1916  *   Pointer to the IB device attributes (name, port, etc).
1917  * @param[out] config
1918  *   Pointer to device configuration structure.
1919  * @param[out] sh
1920  *   Pointer to shared context structure.
1921  *
1922  * @return
1923  *   0 on success, a positive error value otherwise.
1924  */
1925 int
1926 mlx5_os_open_device(const struct mlx5_dev_spawn_data *spawn,
1927                      const struct mlx5_dev_config *config,
1928                      struct mlx5_dev_ctx_shared *sh)
1929 {
1930         int dbmap_env;
1931         int err = 0;
1932
1933         sh->numa_node = spawn->pci_dev->device.numa_node;
1934         pthread_mutex_init(&sh->txpp.mutex, NULL);
1935         /*
1936          * Configure environment variable "MLX5_BF_SHUT_UP"
1937          * before the device creation. The rdma_core library
1938          * checks the variable at device creation and
1939          * stores the result internally.
1940          */
1941         dbmap_env = mlx5_config_doorbell_mapping_env(config);
1942         /* Try to open IB device with DV first, then usual Verbs. */
1943         errno = 0;
1944         sh->ctx = mlx5_glue->dv_open_device(spawn->phys_dev);
1945         if (sh->ctx) {
1946                 sh->devx = 1;
1947                 DRV_LOG(DEBUG, "DevX is supported");
1948                 /* The device is created, no need for environment. */
1949                 mlx5_restore_doorbell_mapping_env(dbmap_env);
1950         } else {
1951                 /* The environment variable is still configured. */
1952                 sh->ctx = mlx5_glue->open_device(spawn->phys_dev);
1953                 err = errno ? errno : ENODEV;
1954                 /*
1955                  * The environment variable is not needed anymore,
1956                  * all device creation attempts are completed.
1957                  */
1958                 mlx5_restore_doorbell_mapping_env(dbmap_env);
1959                 if (!sh->ctx)
1960                         return err;
1961                 DRV_LOG(DEBUG, "DevX is NOT supported");
1962                 err = 0;
1963         }
1964         return err;
1965 }
1966
1967 /**
1968  * Install shared asynchronous device events handler.
1969  * This function is implemented to support event sharing
1970  * between multiple ports of single IB device.
1971  *
1972  * @param sh
1973  *   Pointer to mlx5_dev_ctx_shared object.
1974  */
1975 void
1976 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
1977 {
1978         int ret;
1979         int flags;
1980
1981         sh->intr_handle.fd = -1;
1982         flags = fcntl(((struct ibv_context *)sh->ctx)->async_fd, F_GETFL);
1983         ret = fcntl(((struct ibv_context *)sh->ctx)->async_fd,
1984                     F_SETFL, flags | O_NONBLOCK);
1985         if (ret) {
1986                 DRV_LOG(INFO, "failed to change file descriptor async event"
1987                         " queue");
1988         } else {
1989                 sh->intr_handle.fd = ((struct ibv_context *)sh->ctx)->async_fd;
1990                 sh->intr_handle.type = RTE_INTR_HANDLE_EXT;
1991                 if (rte_intr_callback_register(&sh->intr_handle,
1992                                         mlx5_dev_interrupt_handler, sh)) {
1993                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
1994                         sh->intr_handle.fd = -1;
1995                 }
1996         }
1997         if (sh->devx) {
1998 #ifdef HAVE_IBV_DEVX_ASYNC
1999                 sh->intr_handle_devx.fd = -1;
2000                 sh->devx_comp =
2001                         (void *)mlx5_glue->devx_create_cmd_comp(sh->ctx);
2002                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2003                 if (!devx_comp) {
2004                         DRV_LOG(INFO, "failed to allocate devx_comp.");
2005                         return;
2006                 }
2007                 flags = fcntl(devx_comp->fd, F_GETFL);
2008                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2009                 if (ret) {
2010                         DRV_LOG(INFO, "failed to change file descriptor"
2011                                 " devx comp");
2012                         return;
2013                 }
2014                 sh->intr_handle_devx.fd = devx_comp->fd;
2015                 sh->intr_handle_devx.type = RTE_INTR_HANDLE_EXT;
2016                 if (rte_intr_callback_register(&sh->intr_handle_devx,
2017                                         mlx5_dev_interrupt_handler_devx, sh)) {
2018                         DRV_LOG(INFO, "Fail to install the devx shared"
2019                                 " interrupt.");
2020                         sh->intr_handle_devx.fd = -1;
2021                 }
2022 #endif /* HAVE_IBV_DEVX_ASYNC */
2023         }
2024 }
2025
2026 /**
2027  * Uninstall shared asynchronous device events handler.
2028  * This function is implemented to support event sharing
2029  * between multiple ports of single IB device.
2030  *
2031  * @param dev
2032  *   Pointer to mlx5_dev_ctx_shared object.
2033  */
2034 void
2035 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2036 {
2037         if (sh->intr_handle.fd >= 0)
2038                 mlx5_intr_callback_unregister(&sh->intr_handle,
2039                                               mlx5_dev_interrupt_handler, sh);
2040 #ifdef HAVE_IBV_DEVX_ASYNC
2041         if (sh->intr_handle_devx.fd >= 0)
2042                 rte_intr_callback_unregister(&sh->intr_handle_devx,
2043                                   mlx5_dev_interrupt_handler_devx, sh);
2044         if (sh->devx_comp)
2045                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2046 #endif
2047 }
2048
2049 /**
2050  * Read statistics by a named counter.
2051  *
2052  * @param[in] priv
2053  *   Pointer to the private device data structure.
2054  * @param[in] ctr_name
2055  *   Pointer to the name of the statistic counter to read
2056  * @param[out] stat
2057  *   Pointer to read statistic value.
2058  * @return
2059  *   0 on success and stat is valud, 1 if failed to read the value
2060  *   rte_errno is set.
2061  *
2062  */
2063 int
2064 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2065                       uint64_t *stat)
2066 {
2067         int fd;
2068
2069         if (priv->sh) {
2070                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2071                           priv->sh->ibdev_path,
2072                           priv->dev_port,
2073                           ctr_name);
2074                 fd = open(path, O_RDONLY);
2075                 if (fd != -1) {
2076                         char buf[21] = {'\0'};
2077                         ssize_t n = read(fd, buf, sizeof(buf));
2078
2079                         close(fd);
2080                         if (n != -1) {
2081                                 *stat = strtoull(buf, NULL, 10);
2082                                 return 0;
2083                         }
2084                 }
2085         }
2086         *stat = 0;
2087         return 1;
2088 }
2089
2090 /**
2091  * Read device counters table.
2092  *
2093  * @param dev
2094  *   Pointer to Ethernet device.
2095  * @param[out] stats
2096  *   Counters table output buffer.
2097  *
2098  * @return
2099  *   0 on success and stats is filled, negative errno value otherwise and
2100  *   rte_errno is set.
2101  */
2102 int
2103 mlx5_os_read_dev_counters(struct rte_eth_dev *dev, uint64_t *stats)
2104 {
2105         struct mlx5_priv *priv = dev->data->dev_private;
2106         struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
2107         unsigned int i;
2108         struct ifreq ifr;
2109         unsigned int stats_sz = xstats_ctrl->stats_n * sizeof(uint64_t);
2110         unsigned char et_stat_buf[sizeof(struct ethtool_stats) + stats_sz];
2111         struct ethtool_stats *et_stats = (struct ethtool_stats *)et_stat_buf;
2112         int ret;
2113
2114         et_stats->cmd = ETHTOOL_GSTATS;
2115         et_stats->n_stats = xstats_ctrl->stats_n;
2116         ifr.ifr_data = (caddr_t)et_stats;
2117         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2118         if (ret) {
2119                 DRV_LOG(WARNING,
2120                         "port %u unable to read statistic values from device",
2121                         dev->data->port_id);
2122                 return ret;
2123         }
2124         for (i = 0; i != xstats_ctrl->mlx5_stats_n; ++i) {
2125                 if (xstats_ctrl->info[i].dev) {
2126                         ret = mlx5_os_read_dev_stat(priv,
2127                                             xstats_ctrl->info[i].ctr_name,
2128                                             &stats[i]);
2129                         /* return last xstats counter if fail to read. */
2130                         if (ret == 0)
2131                                 xstats_ctrl->xstats[i] = stats[i];
2132                         else
2133                                 stats[i] = xstats_ctrl->xstats[i];
2134                 } else {
2135                         stats[i] = (uint64_t)
2136                                 et_stats->data[xstats_ctrl->dev_table_idx[i]];
2137                 }
2138         }
2139         return 0;
2140 }
2141
2142 /**
2143  * Query the number of statistics provided by ETHTOOL.
2144  *
2145  * @param dev
2146  *   Pointer to Ethernet device.
2147  *
2148  * @return
2149  *   Number of statistics on success, negative errno value otherwise and
2150  *   rte_errno is set.
2151  */
2152 int
2153 mlx5_os_get_stats_n(struct rte_eth_dev *dev)
2154 {
2155         struct ethtool_drvinfo drvinfo;
2156         struct ifreq ifr;
2157         int ret;
2158
2159         drvinfo.cmd = ETHTOOL_GDRVINFO;
2160         ifr.ifr_data = (caddr_t)&drvinfo;
2161         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2162         if (ret) {
2163                 DRV_LOG(WARNING, "port %u unable to query number of statistics",
2164                         dev->data->port_id);
2165                 return ret;
2166         }
2167         return drvinfo.n_stats;
2168 }
2169
2170 static const struct mlx5_counter_ctrl mlx5_counters_init[] = {
2171         {
2172                 .dpdk_name = "rx_port_unicast_bytes",
2173                 .ctr_name = "rx_vport_unicast_bytes",
2174         },
2175         {
2176                 .dpdk_name = "rx_port_multicast_bytes",
2177                 .ctr_name = "rx_vport_multicast_bytes",
2178         },
2179         {
2180                 .dpdk_name = "rx_port_broadcast_bytes",
2181                 .ctr_name = "rx_vport_broadcast_bytes",
2182         },
2183         {
2184                 .dpdk_name = "rx_port_unicast_packets",
2185                 .ctr_name = "rx_vport_unicast_packets",
2186         },
2187         {
2188                 .dpdk_name = "rx_port_multicast_packets",
2189                 .ctr_name = "rx_vport_multicast_packets",
2190         },
2191         {
2192                 .dpdk_name = "rx_port_broadcast_packets",
2193                 .ctr_name = "rx_vport_broadcast_packets",
2194         },
2195         {
2196                 .dpdk_name = "tx_port_unicast_bytes",
2197                 .ctr_name = "tx_vport_unicast_bytes",
2198         },
2199         {
2200                 .dpdk_name = "tx_port_multicast_bytes",
2201                 .ctr_name = "tx_vport_multicast_bytes",
2202         },
2203         {
2204                 .dpdk_name = "tx_port_broadcast_bytes",
2205                 .ctr_name = "tx_vport_broadcast_bytes",
2206         },
2207         {
2208                 .dpdk_name = "tx_port_unicast_packets",
2209                 .ctr_name = "tx_vport_unicast_packets",
2210         },
2211         {
2212                 .dpdk_name = "tx_port_multicast_packets",
2213                 .ctr_name = "tx_vport_multicast_packets",
2214         },
2215         {
2216                 .dpdk_name = "tx_port_broadcast_packets",
2217                 .ctr_name = "tx_vport_broadcast_packets",
2218         },
2219         {
2220                 .dpdk_name = "rx_wqe_err",
2221                 .ctr_name = "rx_wqe_err",
2222         },
2223         {
2224                 .dpdk_name = "rx_crc_errors_phy",
2225                 .ctr_name = "rx_crc_errors_phy",
2226         },
2227         {
2228                 .dpdk_name = "rx_in_range_len_errors_phy",
2229                 .ctr_name = "rx_in_range_len_errors_phy",
2230         },
2231         {
2232                 .dpdk_name = "rx_symbol_err_phy",
2233                 .ctr_name = "rx_symbol_err_phy",
2234         },
2235         {
2236                 .dpdk_name = "tx_errors_phy",
2237                 .ctr_name = "tx_errors_phy",
2238         },
2239         {
2240                 .dpdk_name = "rx_out_of_buffer",
2241                 .ctr_name = "out_of_buffer",
2242                 .dev = 1,
2243         },
2244         {
2245                 .dpdk_name = "tx_packets_phy",
2246                 .ctr_name = "tx_packets_phy",
2247         },
2248         {
2249                 .dpdk_name = "rx_packets_phy",
2250                 .ctr_name = "rx_packets_phy",
2251         },
2252         {
2253                 .dpdk_name = "tx_discards_phy",
2254                 .ctr_name = "tx_discards_phy",
2255         },
2256         {
2257                 .dpdk_name = "rx_discards_phy",
2258                 .ctr_name = "rx_discards_phy",
2259         },
2260         {
2261                 .dpdk_name = "tx_bytes_phy",
2262                 .ctr_name = "tx_bytes_phy",
2263         },
2264         {
2265                 .dpdk_name = "rx_bytes_phy",
2266                 .ctr_name = "rx_bytes_phy",
2267         },
2268         /* Representor only */
2269         {
2270                 .dpdk_name = "rx_packets",
2271                 .ctr_name = "vport_rx_packets",
2272         },
2273         {
2274                 .dpdk_name = "rx_bytes",
2275                 .ctr_name = "vport_rx_bytes",
2276         },
2277         {
2278                 .dpdk_name = "tx_packets",
2279                 .ctr_name = "vport_tx_packets",
2280         },
2281         {
2282                 .dpdk_name = "tx_bytes",
2283                 .ctr_name = "vport_tx_bytes",
2284         },
2285 };
2286
2287 static const unsigned int xstats_n = RTE_DIM(mlx5_counters_init);
2288
2289 /**
2290  * Init the structures to read device counters.
2291  *
2292  * @param dev
2293  *   Pointer to Ethernet device.
2294  */
2295 void
2296 mlx5_os_stats_init(struct rte_eth_dev *dev)
2297 {
2298         struct mlx5_priv *priv = dev->data->dev_private;
2299         struct mlx5_xstats_ctrl *xstats_ctrl = &priv->xstats_ctrl;
2300         struct mlx5_stats_ctrl *stats_ctrl = &priv->stats_ctrl;
2301         unsigned int i;
2302         unsigned int j;
2303         struct ifreq ifr;
2304         struct ethtool_gstrings *strings = NULL;
2305         unsigned int dev_stats_n;
2306         unsigned int str_sz;
2307         int ret;
2308
2309         /* So that it won't aggregate for each init. */
2310         xstats_ctrl->mlx5_stats_n = 0;
2311         ret = mlx5_os_get_stats_n(dev);
2312         if (ret < 0) {
2313                 DRV_LOG(WARNING, "port %u no extended statistics available",
2314                         dev->data->port_id);
2315                 return;
2316         }
2317         dev_stats_n = ret;
2318         /* Allocate memory to grab stat names and values. */
2319         str_sz = dev_stats_n * ETH_GSTRING_LEN;
2320         strings = (struct ethtool_gstrings *)
2321                   mlx5_malloc(0, str_sz + sizeof(struct ethtool_gstrings), 0,
2322                               SOCKET_ID_ANY);
2323         if (!strings) {
2324                 DRV_LOG(WARNING, "port %u unable to allocate memory for xstats",
2325                      dev->data->port_id);
2326                 return;
2327         }
2328         strings->cmd = ETHTOOL_GSTRINGS;
2329         strings->string_set = ETH_SS_STATS;
2330         strings->len = dev_stats_n;
2331         ifr.ifr_data = (caddr_t)strings;
2332         ret = mlx5_ifreq(dev, SIOCETHTOOL, &ifr);
2333         if (ret) {
2334                 DRV_LOG(WARNING, "port %u unable to get statistic names",
2335                         dev->data->port_id);
2336                 goto free;
2337         }
2338         for (i = 0; i != dev_stats_n; ++i) {
2339                 const char *curr_string = (const char *)
2340                         &strings->data[i * ETH_GSTRING_LEN];
2341
2342                 for (j = 0; j != xstats_n; ++j) {
2343                         if (!strcmp(mlx5_counters_init[j].ctr_name,
2344                                     curr_string)) {
2345                                 unsigned int idx = xstats_ctrl->mlx5_stats_n++;
2346
2347                                 xstats_ctrl->dev_table_idx[idx] = i;
2348                                 xstats_ctrl->info[idx] = mlx5_counters_init[j];
2349                                 break;
2350                         }
2351                 }
2352         }
2353         /* Add dev counters. */
2354         for (i = 0; i != xstats_n; ++i) {
2355                 if (mlx5_counters_init[i].dev) {
2356                         unsigned int idx = xstats_ctrl->mlx5_stats_n++;
2357
2358                         xstats_ctrl->info[idx] = mlx5_counters_init[i];
2359                         xstats_ctrl->hw_stats[idx] = 0;
2360                 }
2361         }
2362         MLX5_ASSERT(xstats_ctrl->mlx5_stats_n <= MLX5_MAX_XSTATS);
2363         xstats_ctrl->stats_n = dev_stats_n;
2364         /* Copy to base at first time. */
2365         ret = mlx5_os_read_dev_counters(dev, xstats_ctrl->base);
2366         if (ret)
2367                 DRV_LOG(ERR, "port %u cannot read device counters: %s",
2368                         dev->data->port_id, strerror(rte_errno));
2369         mlx5_os_read_dev_stat(priv, "out_of_buffer", &stats_ctrl->imissed_base);
2370         stats_ctrl->imissed = 0;
2371 free:
2372         mlx5_free(strings);
2373 }
2374
2375 /**
2376  * Set the reg_mr and dereg_mr call backs
2377  *
2378  * @param reg_mr_cb[out]
2379  *   Pointer to reg_mr func
2380  * @param dereg_mr_cb[out]
2381  *   Pointer to dereg_mr func
2382  *
2383  */
2384 void
2385 mlx5_os_set_reg_mr_cb(mlx5_reg_mr_t *reg_mr_cb,
2386                       mlx5_dereg_mr_t *dereg_mr_cb)
2387 {
2388         *reg_mr_cb = mlx5_verbs_ops.reg_mr;
2389         *dereg_mr_cb = mlx5_verbs_ops.dereg_mr;
2390 }
2391
2392 /**
2393  * Remove a MAC address from device
2394  *
2395  * @param dev
2396  *   Pointer to Ethernet device structure.
2397  * @param index
2398  *   MAC address index.
2399  */
2400 void
2401 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2402 {
2403         struct mlx5_priv *priv = dev->data->dev_private;
2404         const int vf = priv->config.vf;
2405
2406         if (vf)
2407                 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2408                                         mlx5_ifindex(dev), priv->mac_own,
2409                                         &dev->data->mac_addrs[index], index);
2410 }
2411
2412 /**
2413  * Adds a MAC address to the device
2414  *
2415  * @param dev
2416  *   Pointer to Ethernet device structure.
2417  * @param mac_addr
2418  *   MAC address to register.
2419  * @param index
2420  *   MAC address index.
2421  *
2422  * @return
2423  *   0 on success, a negative errno value otherwise
2424  */
2425 int
2426 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2427                      uint32_t index)
2428 {
2429         struct mlx5_priv *priv = dev->data->dev_private;
2430         const int vf = priv->config.vf;
2431         int ret = 0;
2432
2433         if (vf)
2434                 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2435                                            mlx5_ifindex(dev), priv->mac_own,
2436                                            mac, index);
2437         return ret;
2438 }
2439
2440 /**
2441  * Modify a VF MAC address
2442  *
2443  * @param priv
2444  *   Pointer to device private data.
2445  * @param mac_addr
2446  *   MAC address to modify into.
2447  * @param iface_idx
2448  *   Net device interface index
2449  * @param vf_index
2450  *   VF index
2451  *
2452  * @return
2453  *   0 on success, a negative errno value otherwise
2454  */
2455 int
2456 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
2457                            unsigned int iface_idx,
2458                            struct rte_ether_addr *mac_addr,
2459                            int vf_index)
2460 {
2461         return mlx5_nl_vf_mac_addr_modify
2462                 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
2463 }
2464
2465 /**
2466  * Set device promiscuous mode
2467  *
2468  * @param dev
2469  *   Pointer to Ethernet device structure.
2470  * @param enable
2471  *   0 - promiscuous is disabled, otherwise - enabled
2472  *
2473  * @return
2474  *   0 on success, a negative error value otherwise
2475  */
2476 int
2477 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
2478 {
2479         struct mlx5_priv *priv = dev->data->dev_private;
2480
2481         return mlx5_nl_promisc(priv->nl_socket_route,
2482                                mlx5_ifindex(dev), !!enable);
2483 }
2484
2485 /**
2486  * Set device promiscuous mode
2487  *
2488  * @param dev
2489  *   Pointer to Ethernet device structure.
2490  * @param enable
2491  *   0 - all multicase is disabled, otherwise - enabled
2492  *
2493  * @return
2494  *   0 on success, a negative error value otherwise
2495  */
2496 int
2497 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
2498 {
2499         struct mlx5_priv *priv = dev->data->dev_private;
2500
2501         return mlx5_nl_allmulti(priv->nl_socket_route,
2502                                 mlx5_ifindex(dev), !!enable);
2503 }
2504
2505 const struct eth_dev_ops mlx5_os_dev_ops = {
2506         .dev_configure = mlx5_dev_configure,
2507         .dev_start = mlx5_dev_start,
2508         .dev_stop = mlx5_dev_stop,
2509         .dev_set_link_down = mlx5_set_link_down,
2510         .dev_set_link_up = mlx5_set_link_up,
2511         .dev_close = mlx5_dev_close,
2512         .promiscuous_enable = mlx5_promiscuous_enable,
2513         .promiscuous_disable = mlx5_promiscuous_disable,
2514         .allmulticast_enable = mlx5_allmulticast_enable,
2515         .allmulticast_disable = mlx5_allmulticast_disable,
2516         .link_update = mlx5_link_update,
2517         .stats_get = mlx5_stats_get,
2518         .stats_reset = mlx5_stats_reset,
2519         .xstats_get = mlx5_xstats_get,
2520         .xstats_reset = mlx5_xstats_reset,
2521         .xstats_get_names = mlx5_xstats_get_names,
2522         .fw_version_get = mlx5_fw_version_get,
2523         .dev_infos_get = mlx5_dev_infos_get,
2524         .read_clock = mlx5_txpp_read_clock,
2525         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2526         .vlan_filter_set = mlx5_vlan_filter_set,
2527         .rx_queue_setup = mlx5_rx_queue_setup,
2528         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2529         .tx_queue_setup = mlx5_tx_queue_setup,
2530         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2531         .rx_queue_release = mlx5_rx_queue_release,
2532         .tx_queue_release = mlx5_tx_queue_release,
2533         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2534         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2535         .mac_addr_remove = mlx5_mac_addr_remove,
2536         .mac_addr_add = mlx5_mac_addr_add,
2537         .mac_addr_set = mlx5_mac_addr_set,
2538         .set_mc_addr_list = mlx5_set_mc_addr_list,
2539         .mtu_set = mlx5_dev_set_mtu,
2540         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2541         .vlan_offload_set = mlx5_vlan_offload_set,
2542         .reta_update = mlx5_dev_rss_reta_update,
2543         .reta_query = mlx5_dev_rss_reta_query,
2544         .rss_hash_update = mlx5_rss_hash_update,
2545         .rss_hash_conf_get = mlx5_rss_hash_conf_get,
2546         .filter_ctrl = mlx5_dev_filter_ctrl,
2547         .rx_descriptor_status = mlx5_rx_descriptor_status,
2548         .tx_descriptor_status = mlx5_tx_descriptor_status,
2549         .rxq_info_get = mlx5_rxq_info_get,
2550         .txq_info_get = mlx5_txq_info_get,
2551         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2552         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2553         .rx_queue_count = mlx5_rx_queue_count,
2554         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2555         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2556         .is_removed = mlx5_is_removed,
2557         .udp_tunnel_port_add  = mlx5_udp_tunnel_port_add,
2558         .get_module_info = mlx5_get_module_info,
2559         .get_module_eeprom = mlx5_get_module_eeprom,
2560         .hairpin_cap_get = mlx5_hairpin_cap_get,
2561         .mtr_ops_get = mlx5_flow_meter_ops_get,
2562 };
2563
2564 /* Available operations from secondary process. */
2565 const struct eth_dev_ops mlx5_os_dev_sec_ops = {
2566         .stats_get = mlx5_stats_get,
2567         .stats_reset = mlx5_stats_reset,
2568         .xstats_get = mlx5_xstats_get,
2569         .xstats_reset = mlx5_xstats_reset,
2570         .xstats_get_names = mlx5_xstats_get_names,
2571         .fw_version_get = mlx5_fw_version_get,
2572         .dev_infos_get = mlx5_dev_infos_get,
2573         .read_clock = mlx5_txpp_read_clock,
2574         .rx_descriptor_status = mlx5_rx_descriptor_status,
2575         .tx_descriptor_status = mlx5_tx_descriptor_status,
2576         .rxq_info_get = mlx5_rxq_info_get,
2577         .txq_info_get = mlx5_txq_info_get,
2578         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2579         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2580         .get_module_info = mlx5_get_module_info,
2581         .get_module_eeprom = mlx5_get_module_eeprom,
2582 };
2583
2584 /* Available operations in flow isolated mode. */
2585 const struct eth_dev_ops mlx5_os_dev_ops_isolate = {
2586         .dev_configure = mlx5_dev_configure,
2587         .dev_start = mlx5_dev_start,
2588         .dev_stop = mlx5_dev_stop,
2589         .dev_set_link_down = mlx5_set_link_down,
2590         .dev_set_link_up = mlx5_set_link_up,
2591         .dev_close = mlx5_dev_close,
2592         .promiscuous_enable = mlx5_promiscuous_enable,
2593         .promiscuous_disable = mlx5_promiscuous_disable,
2594         .allmulticast_enable = mlx5_allmulticast_enable,
2595         .allmulticast_disable = mlx5_allmulticast_disable,
2596         .link_update = mlx5_link_update,
2597         .stats_get = mlx5_stats_get,
2598         .stats_reset = mlx5_stats_reset,
2599         .xstats_get = mlx5_xstats_get,
2600         .xstats_reset = mlx5_xstats_reset,
2601         .xstats_get_names = mlx5_xstats_get_names,
2602         .fw_version_get = mlx5_fw_version_get,
2603         .dev_infos_get = mlx5_dev_infos_get,
2604         .read_clock = mlx5_txpp_read_clock,
2605         .dev_supported_ptypes_get = mlx5_dev_supported_ptypes_get,
2606         .vlan_filter_set = mlx5_vlan_filter_set,
2607         .rx_queue_setup = mlx5_rx_queue_setup,
2608         .rx_hairpin_queue_setup = mlx5_rx_hairpin_queue_setup,
2609         .tx_queue_setup = mlx5_tx_queue_setup,
2610         .tx_hairpin_queue_setup = mlx5_tx_hairpin_queue_setup,
2611         .rx_queue_release = mlx5_rx_queue_release,
2612         .tx_queue_release = mlx5_tx_queue_release,
2613         .flow_ctrl_get = mlx5_dev_get_flow_ctrl,
2614         .flow_ctrl_set = mlx5_dev_set_flow_ctrl,
2615         .mac_addr_remove = mlx5_mac_addr_remove,
2616         .mac_addr_add = mlx5_mac_addr_add,
2617         .mac_addr_set = mlx5_mac_addr_set,
2618         .set_mc_addr_list = mlx5_set_mc_addr_list,
2619         .mtu_set = mlx5_dev_set_mtu,
2620         .vlan_strip_queue_set = mlx5_vlan_strip_queue_set,
2621         .vlan_offload_set = mlx5_vlan_offload_set,
2622         .filter_ctrl = mlx5_dev_filter_ctrl,
2623         .rx_descriptor_status = mlx5_rx_descriptor_status,
2624         .tx_descriptor_status = mlx5_tx_descriptor_status,
2625         .rxq_info_get = mlx5_rxq_info_get,
2626         .txq_info_get = mlx5_txq_info_get,
2627         .rx_burst_mode_get = mlx5_rx_burst_mode_get,
2628         .tx_burst_mode_get = mlx5_tx_burst_mode_get,
2629         .rx_queue_intr_enable = mlx5_rx_intr_enable,
2630         .rx_queue_intr_disable = mlx5_rx_intr_disable,
2631         .is_removed = mlx5_is_removed,
2632         .get_module_info = mlx5_get_module_info,
2633         .get_module_eeprom = mlx5_get_module_eeprom,
2634         .hairpin_cap_get = mlx5_hairpin_cap_get,
2635         .mtr_ops_get = mlx5_flow_meter_ops_get,
2636 };