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 #include <rte_malloc.h>
  19 #include <ethdev_driver.h>
  20 #include <ethdev_pci.h>
  21 #include <rte_pci.h>
  22 #include <rte_bus_pci.h>
  23 #include <rte_bus_auxiliary.h>
  24 #include <rte_common.h>
  25 #include <rte_kvargs.h>
  26 #include <rte_rwlock.h>
  27 #include <rte_spinlock.h>
  28 #include <rte_string_fns.h>
  29 #include <rte_alarm.h>
  30 #include <rte_eal_paging.h>
  31
  32 #include <mlx5_glue.h>
  33 #include <mlx5_devx_cmds.h>
  34 #include <mlx5_common.h>
  35 #include <mlx5_common_mp.h>
  36 #include <mlx5_common_mr.h>
  37 #include <mlx5_malloc.h>
  38
  39 #include "mlx5_defs.h"
  40 #include "mlx5.h"
  41 #include "mlx5_common_os.h"
  42 #include "mlx5_utils.h"
  43 #include "mlx5_rxtx.h"
  44 #include "mlx5_rx.h"
  45 #include "mlx5_tx.h"
  46 #include "mlx5_autoconf.h"
  47 #include "mlx5_flow.h"
  48 #include "rte_pmd_mlx5.h"
  49 #include "mlx5_verbs.h"
  50 #include "mlx5_nl.h"
  51 #include "mlx5_devx.h"
  52
  53 #ifndef HAVE_IBV_MLX5_MOD_MPW
  54 #define MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED (1 << 2)
  55 #define MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW (1 << 3)
  56 #endif
  57
  58 #ifndef HAVE_IBV_MLX5_MOD_CQE_128B_COMP
  59 #define MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP (1 << 4)
  60 #endif
  61
  62 static const char *MZ_MLX5_PMD_SHARED_DATA = "mlx5_pmd_shared_data";
  63
  64 /* Spinlock for mlx5_shared_data allocation. */
  65 static rte_spinlock_t mlx5_shared_data_lock = RTE_SPINLOCK_INITIALIZER;
  66
  67 /* Process local data for secondary processes. */
  68 static struct mlx5_local_data mlx5_local_data;
  69
  70 /* rte flow indexed pool configuration. */
  71 static struct mlx5_indexed_pool_config icfg[] = {
  72         {
  73                 .size = sizeof(struct rte_flow),
  74                 .trunk_size = 64,
  75                 .need_lock = 1,
  76                 .release_mem_en = 0,
  77                 .malloc = mlx5_malloc,
  78                 .free = mlx5_free,
  79                 .per_core_cache = 0,
  80                 .type = "ctl_flow_ipool",
  81         },
  82         {
  83                 .size = sizeof(struct rte_flow),
  84                 .trunk_size = 64,
  85                 .grow_trunk = 3,
  86                 .grow_shift = 2,
  87                 .need_lock = 1,
  88                 .release_mem_en = 0,
  89                 .malloc = mlx5_malloc,
  90                 .free = mlx5_free,
  91                 .per_core_cache = 1 << 14,
  92                 .type = "rte_flow_ipool",
  93         },
  94         {
  95                 .size = sizeof(struct rte_flow),
  96                 .trunk_size = 64,
  97                 .grow_trunk = 3,
  98                 .grow_shift = 2,
  99                 .need_lock = 1,
 100                 .release_mem_en = 0,
 101                 .malloc = mlx5_malloc,
 102                 .free = mlx5_free,
 103                 .per_core_cache = 0,
 104                 .type = "mcp_flow_ipool",
 105         },
 106 };
 107
 108 /**
 109  * Set the completion channel file descriptor interrupt as non-blocking.
 110  *
 111  * @param[in] rxq_obj
 112  *   Pointer to RQ channel object, which includes the channel fd
 113  *
 114  * @param[out] fd
 115  *   The file descriptor (representing the interrupt) used in this channel.
 116  *
 117  * @return
 118  *   0 on successfully setting the fd to non-blocking, non-zero otherwise.
 119  */
 120 int
 121 mlx5_os_set_nonblock_channel_fd(int fd)
 122 {
 123         int flags;
 124
 125         flags = fcntl(fd, F_GETFL);
 126         return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
 127 }
 128
 129 /**
 130  * Get mlx5 device attributes. The glue function query_device_ex() is called
 131  * with out parameter of type 'struct ibv_device_attr_ex *'. Then fill in mlx5
 132  * device attributes from the glue out parameter.
 133  *
 134  * @param sh
 135  *   Pointer to shared device context.
 136  *
 137  * @return
 138  *   0 on success, a negative errno value otherwise and rte_errno is set.
 139  */
 140 int
 141 mlx5_os_capabilities_prepare(struct mlx5_dev_ctx_shared *sh)
 142 {
 143         int err;
 144         struct mlx5_common_device *cdev = sh->cdev;
 145         struct mlx5_hca_attr *hca_attr = &cdev->config.hca_attr;
 146         struct ibv_device_attr_ex attr_ex = { .comp_mask = 0 };
 147         struct mlx5dv_context dv_attr = { .comp_mask = 0 };
 148
 149         err = mlx5_glue->query_device_ex(cdev->ctx, NULL, &attr_ex);
 150         if (err) {
 151                 rte_errno = errno;
 152                 return -rte_errno;
 153         }
 154 #ifdef HAVE_IBV_MLX5_MOD_SWP
 155         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_SWP;
 156 #endif
 157 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 158         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS;
 159 #endif
 160 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 161         dv_attr.comp_mask |= MLX5DV_CONTEXT_MASK_STRIDING_RQ;
 162 #endif
 163         err = mlx5_glue->dv_query_device(cdev->ctx, &dv_attr);
 164         if (err) {
 165                 rte_errno = errno;
 166                 return -rte_errno;
 167         }
 168         memset(&sh->dev_cap, 0, sizeof(struct mlx5_dev_cap));
 169         if (mlx5_dev_is_pci(cdev->dev))
 170                 sh->dev_cap.vf = mlx5_dev_is_vf_pci(RTE_DEV_TO_PCI(cdev->dev));
 171         else
 172                 sh->dev_cap.sf = 1;
 173         sh->dev_cap.max_qp_wr = attr_ex.orig_attr.max_qp_wr;
 174         sh->dev_cap.max_sge = attr_ex.orig_attr.max_sge;
 175         sh->dev_cap.max_cq = attr_ex.orig_attr.max_cq;
 176         sh->dev_cap.max_qp = attr_ex.orig_attr.max_qp;
 177 #ifdef HAVE_MLX5DV_DR_ACTION_DEST_DEVX_TIR
 178         sh->dev_cap.dest_tir = 1;
 179 #endif
 180 #if defined(HAVE_IBV_FLOW_DV_SUPPORT) && defined(HAVE_MLX5DV_DR)
 181         DRV_LOG(DEBUG, "DV flow is supported.");
 182         sh->dev_cap.dv_flow_en = 1;
 183 #endif
 184 #ifdef HAVE_MLX5DV_DR_ESWITCH
 185         if (hca_attr->eswitch_manager && sh->dev_cap.dv_flow_en && sh->esw_mode)
 186                 sh->dev_cap.dv_esw_en = 1;
 187 #endif
 188         /*
 189          * Multi-packet send is supported by ConnectX-4 Lx PF as well
 190          * as all ConnectX-5 devices.
 191          */
 192         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_MPW_ALLOWED) {
 193                 if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_ENHANCED_MPW) {
 194                         DRV_LOG(DEBUG, "Enhanced MPW is supported.");
 195                         sh->dev_cap.mps = MLX5_MPW_ENHANCED;
 196                 } else {
 197                         DRV_LOG(DEBUG, "MPW is supported.");
 198                         sh->dev_cap.mps = MLX5_MPW;
 199                 }
 200         } else {
 201                 DRV_LOG(DEBUG, "MPW isn't supported.");
 202                 sh->dev_cap.mps = MLX5_MPW_DISABLED;
 203         }
 204 #if (RTE_CACHE_LINE_SIZE == 128)
 205         if (dv_attr.flags & MLX5DV_CONTEXT_FLAGS_CQE_128B_COMP)
 206                 sh->dev_cap.cqe_comp = 1;
 207         DRV_LOG(DEBUG, "Rx CQE 128B compression is %ssupported.",
 208                 sh->dev_cap.cqe_comp ? "" : "not ");
 209 #else
 210         sh->dev_cap.cqe_comp = 1;
 211 #endif
 212 #ifdef HAVE_IBV_DEVICE_MPLS_SUPPORT
 213         sh->dev_cap.mpls_en =
 214                 ((dv_attr.tunnel_offloads_caps &
 215                   MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_GRE) &&
 216                  (dv_attr.tunnel_offloads_caps &
 217                   MLX5DV_RAW_PACKET_CAP_TUNNELED_OFFLOAD_CW_MPLS_OVER_UDP));
 218         DRV_LOG(DEBUG, "MPLS over GRE/UDP tunnel offloading is %ssupported.",
 219                 sh->dev_cap.mpls_en ? "" : "not ");
 220 #else
 221         DRV_LOG(WARNING,
 222                 "MPLS over GRE/UDP tunnel offloading disabled due to old OFED/rdma-core version or firmware configuration");
 223 #endif
 224 #if defined(HAVE_IBV_WQ_FLAG_RX_END_PADDING)
 225         sh->dev_cap.hw_padding = !!attr_ex.rx_pad_end_addr_align;
 226 #elif defined(HAVE_IBV_WQ_FLAGS_PCI_WRITE_END_PADDING)
 227         sh->dev_cap.hw_padding = !!(attr_ex.device_cap_flags_ex &
 228                                     IBV_DEVICE_PCI_WRITE_END_PADDING);
 229 #endif
 230         sh->dev_cap.hw_csum =
 231                 !!(attr_ex.device_cap_flags_ex & IBV_DEVICE_RAW_IP_CSUM);
 232         DRV_LOG(DEBUG, "Checksum offloading is %ssupported.",
 233                 sh->dev_cap.hw_csum ? "" : "not ");
 234         sh->dev_cap.hw_vlan_strip = !!(attr_ex.raw_packet_caps &
 235                                        IBV_RAW_PACKET_CAP_CVLAN_STRIPPING);
 236         DRV_LOG(DEBUG, "VLAN stripping is %ssupported.",
 237                 (sh->dev_cap.hw_vlan_strip ? "" : "not "));
 238         sh->dev_cap.hw_fcs_strip = !!(attr_ex.raw_packet_caps &
 239                                       IBV_RAW_PACKET_CAP_SCATTER_FCS);
 240 #if !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V42) && \
 241         !defined(HAVE_IBV_DEVICE_COUNTERS_SET_V45)
 242         DRV_LOG(DEBUG, "Counters are not supported.");
 243 #endif
 244         /*
 245          * DPDK doesn't support larger/variable indirection tables.
 246          * Once DPDK supports it, take max size from device attr.
 247          */
 248         sh->dev_cap.ind_table_max_size =
 249                         RTE_MIN(attr_ex.rss_caps.max_rwq_indirection_table_size,
 250                                 (unsigned int)RTE_ETH_RSS_RETA_SIZE_512);
 251         DRV_LOG(DEBUG, "Maximum Rx indirection table size is %u",
 252                 sh->dev_cap.ind_table_max_size);
 253         sh->dev_cap.tso = (attr_ex.tso_caps.max_tso > 0 &&
 254                            (attr_ex.tso_caps.supported_qpts &
 255                             (1 << IBV_QPT_RAW_PACKET)));
 256         if (sh->dev_cap.tso)
 257                 sh->dev_cap.tso_max_payload_sz = attr_ex.tso_caps.max_tso;
 258         strlcpy(sh->dev_cap.fw_ver, attr_ex.orig_attr.fw_ver,
 259                 sizeof(sh->dev_cap.fw_ver));
 260 #ifdef HAVE_IBV_MLX5_MOD_SWP
 261         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_SWP)
 262                 sh->dev_cap.swp = dv_attr.sw_parsing_caps.sw_parsing_offloads &
 263                                   (MLX5_SW_PARSING_CAP |
 264                                    MLX5_SW_PARSING_CSUM_CAP |
 265                                    MLX5_SW_PARSING_TSO_CAP);
 266         DRV_LOG(DEBUG, "SWP support: %u", sh->dev_cap.swp);
 267 #endif
 268 #ifdef HAVE_IBV_DEVICE_STRIDING_RQ_SUPPORT
 269         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_STRIDING_RQ) {
 270                 struct mlx5dv_striding_rq_caps *strd_rq_caps =
 271                                 &dv_attr.striding_rq_caps;
 272
 273                 sh->dev_cap.mprq.enabled = 1;
 274                 sh->dev_cap.mprq.log_min_stride_size =
 275                         strd_rq_caps->min_single_stride_log_num_of_bytes;
 276                 sh->dev_cap.mprq.log_max_stride_size =
 277                         strd_rq_caps->max_single_stride_log_num_of_bytes;
 278                 sh->dev_cap.mprq.log_min_stride_num =
 279                         strd_rq_caps->min_single_wqe_log_num_of_strides;
 280                 sh->dev_cap.mprq.log_max_stride_num =
 281                         strd_rq_caps->max_single_wqe_log_num_of_strides;
 282                 sh->dev_cap.mprq.log_min_stride_wqe_size =
 283                                         cdev->config.devx ?
 284                                         hca_attr->log_min_stride_wqe_sz :
 285                                         MLX5_MPRQ_LOG_MIN_STRIDE_WQE_SIZE;
 286                 DRV_LOG(DEBUG, "\tmin_single_stride_log_num_of_bytes: %u",
 287                         sh->dev_cap.mprq.log_min_stride_size);
 288                 DRV_LOG(DEBUG, "\tmax_single_stride_log_num_of_bytes: %u",
 289                         sh->dev_cap.mprq.log_max_stride_size);
 290                 DRV_LOG(DEBUG, "\tmin_single_wqe_log_num_of_strides: %u",
 291                         sh->dev_cap.mprq.log_min_stride_num);
 292                 DRV_LOG(DEBUG, "\tmax_single_wqe_log_num_of_strides: %u",
 293                         sh->dev_cap.mprq.log_max_stride_num);
 294                 DRV_LOG(DEBUG, "\tmin_stride_wqe_log_size: %u",
 295                         sh->dev_cap.mprq.log_min_stride_wqe_size);
 296                 DRV_LOG(DEBUG, "\tsupported_qpts: %d",
 297                         strd_rq_caps->supported_qpts);
 298                 DRV_LOG(DEBUG, "Device supports Multi-Packet RQ.");
 299         }
 300 #endif
 301 #ifdef HAVE_IBV_DEVICE_TUNNEL_SUPPORT
 302         if (dv_attr.comp_mask & MLX5DV_CONTEXT_MASK_TUNNEL_OFFLOADS) {
 303                 sh->dev_cap.tunnel_en = dv_attr.tunnel_offloads_caps &
 304                                         (MLX5_TUNNELED_OFFLOADS_VXLAN_CAP |
 305                                          MLX5_TUNNELED_OFFLOADS_GRE_CAP |
 306                                          MLX5_TUNNELED_OFFLOADS_GENEVE_CAP);
 307         }
 308         if (sh->dev_cap.tunnel_en) {
 309                 DRV_LOG(DEBUG, "Tunnel offloading is supported for %s%s%s",
 310                         sh->dev_cap.tunnel_en &
 311                         MLX5_TUNNELED_OFFLOADS_VXLAN_CAP ? "[VXLAN]" : "",
 312                         sh->dev_cap.tunnel_en &
 313                         MLX5_TUNNELED_OFFLOADS_GRE_CAP ? "[GRE]" : "",
 314                         sh->dev_cap.tunnel_en &
 315                         MLX5_TUNNELED_OFFLOADS_GENEVE_CAP ? "[GENEVE]" : "");
 316         } else {
 317                 DRV_LOG(DEBUG, "Tunnel offloading is not supported.");
 318         }
 319 #else
 320         DRV_LOG(WARNING,
 321                 "Tunnel offloading disabled due to old OFED/rdma-core version");
 322 #endif
 323         if (!sh->cdev->config.devx)
 324                 return 0;
 325         /* Check capabilities for Packet Pacing. */
 326         DRV_LOG(DEBUG, "Timestamp counter frequency %u kHz.",
 327                 hca_attr->dev_freq_khz);
 328         DRV_LOG(DEBUG, "Packet pacing is %ssupported.",
 329                 hca_attr->qos.packet_pacing ? "" : "not ");
 330         DRV_LOG(DEBUG, "Cross channel ops are %ssupported.",
 331                 hca_attr->cross_channel ? "" : "not ");
 332         DRV_LOG(DEBUG, "WQE index ignore is %ssupported.",
 333                 hca_attr->wqe_index_ignore ? "" : "not ");
 334         DRV_LOG(DEBUG, "Non-wire SQ feature is %ssupported.",
 335                 hca_attr->non_wire_sq ? "" : "not ");
 336         DRV_LOG(DEBUG, "Static WQE SQ feature is %ssupported (%d)",
 337                 hca_attr->log_max_static_sq_wq ? "" : "not ",
 338                 hca_attr->log_max_static_sq_wq);
 339         DRV_LOG(DEBUG, "WQE rate PP mode is %ssupported.",
 340                 hca_attr->qos.wqe_rate_pp ? "" : "not ");
 341         sh->dev_cap.txpp_en = hca_attr->qos.packet_pacing;
 342         if (!hca_attr->cross_channel) {
 343                 DRV_LOG(DEBUG,
 344                         "Cross channel operations are required for packet pacing.");
 345                 sh->dev_cap.txpp_en = 0;
 346         }
 347         if (!hca_attr->wqe_index_ignore) {
 348                 DRV_LOG(DEBUG,
 349                         "WQE index ignore feature is required for packet pacing.");
 350                 sh->dev_cap.txpp_en = 0;
 351         }
 352         if (!hca_attr->non_wire_sq) {
 353                 DRV_LOG(DEBUG,
 354                         "Non-wire SQ feature is required for packet pacing.");
 355                 sh->dev_cap.txpp_en = 0;
 356         }
 357         if (!hca_attr->log_max_static_sq_wq) {
 358                 DRV_LOG(DEBUG,
 359                         "Static WQE SQ feature is required for packet pacing.");
 360                 sh->dev_cap.txpp_en = 0;
 361         }
 362         if (!hca_attr->qos.wqe_rate_pp) {
 363                 DRV_LOG(DEBUG,
 364                         "WQE rate mode is required for packet pacing.");
 365                 sh->dev_cap.txpp_en = 0;
 366         }
 367 #ifndef HAVE_MLX5DV_DEVX_UAR_OFFSET
 368         DRV_LOG(DEBUG,
 369                 "DevX does not provide UAR offset, can't create queues for packet pacing.");
 370         sh->dev_cap.txpp_en = 0;
 371 #endif
 372         /* Check for LRO support. */
 373         if (mlx5_devx_obj_ops_en(sh) && hca_attr->lro_cap) {
 374                 /* TBD check tunnel lro caps. */
 375                 sh->dev_cap.lro_supported = 1;
 376                 DRV_LOG(DEBUG, "Device supports LRO.");
 377                 DRV_LOG(DEBUG,
 378                         "LRO minimal size of TCP segment required for coalescing is %d bytes.",
 379                         hca_attr->lro_min_mss_size);
 380         }
 381         sh->dev_cap.scatter_fcs_w_decap_disable =
 382                                         hca_attr->scatter_fcs_w_decap_disable;
 383         sh->dev_cap.rq_delay_drop_en = hca_attr->rq_delay_drop;
 384         mlx5_rt_timestamp_config(sh, hca_attr);
 385         return 0;
 386 }
 387
 388 /**
 389  * Detect misc5 support or not
 390  *
 391  * @param[in] priv
 392  *   Device private data pointer
 393  */
 394 #ifdef HAVE_MLX5DV_DR
 395 static void
 396 __mlx5_discovery_misc5_cap(struct mlx5_priv *priv)
 397 {
 398 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 399         /* Dummy VxLAN matcher to detect rdma-core misc5 cap
 400          * Case: IPv4--->UDP--->VxLAN--->vni
 401          */
 402         void *tbl;
 403         struct mlx5_flow_dv_match_params matcher_mask;
 404         void *match_m;
 405         void *matcher;
 406         void *headers_m;
 407         void *misc5_m;
 408         uint32_t *tunnel_header_m;
 409         struct mlx5dv_flow_matcher_attr dv_attr;
 410
 411         memset(&matcher_mask, 0, sizeof(matcher_mask));
 412         matcher_mask.size = sizeof(matcher_mask.buf);
 413         match_m = matcher_mask.buf;
 414         headers_m = MLX5_ADDR_OF(fte_match_param, match_m, outer_headers);
 415         misc5_m = MLX5_ADDR_OF(fte_match_param,
 416                                match_m, misc_parameters_5);
 417         tunnel_header_m = (uint32_t *)
 418                                 MLX5_ADDR_OF(fte_match_set_misc5,
 419                                 misc5_m, tunnel_header_1);
 420         MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_protocol, 0xff);
 421         MLX5_SET(fte_match_set_lyr_2_4, headers_m, ip_version, 4);
 422         MLX5_SET(fte_match_set_lyr_2_4, headers_m, udp_dport, 0xffff);
 423         *tunnel_header_m = 0xffffff;
 424
 425         tbl = mlx5_glue->dr_create_flow_tbl(priv->sh->rx_domain, 1);
 426         if (!tbl) {
 427                 DRV_LOG(INFO, "No SW steering support");
 428                 return;
 429         }
 430         dv_attr.type = IBV_FLOW_ATTR_NORMAL,
 431         dv_attr.match_mask = (void *)&matcher_mask,
 432         dv_attr.match_criteria_enable =
 433                         (1 << MLX5_MATCH_CRITERIA_ENABLE_OUTER_BIT) |
 434                         (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC5_BIT);
 435         dv_attr.priority = 3;
 436 #ifdef HAVE_MLX5DV_DR_ESWITCH
 437         void *misc2_m;
 438         if (priv->sh->config.dv_esw_en) {
 439                 /* FDB enabled reg_c_0 */
 440                 dv_attr.match_criteria_enable |=
 441                                 (1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT);
 442                 misc2_m = MLX5_ADDR_OF(fte_match_param,
 443                                        match_m, misc_parameters_2);
 444                 MLX5_SET(fte_match_set_misc2, misc2_m,
 445                          metadata_reg_c_0, 0xffff);
 446         }
 447 #endif
 448         matcher = mlx5_glue->dv_create_flow_matcher(priv->sh->cdev->ctx,
 449                                                     &dv_attr, tbl);
 450         if (matcher) {
 451                 priv->sh->misc5_cap = 1;
 452                 mlx5_glue->dv_destroy_flow_matcher(matcher);
 453         }
 454         mlx5_glue->dr_destroy_flow_tbl(tbl);
 455 #else
 456         RTE_SET_USED(priv);
 457 #endif
 458 }
 459 #endif
 460
 461 /**
 462  * Initialize DR related data within private structure.
 463  * Routine checks the reference counter and does actual
 464  * resources creation/initialization only if counter is zero.
 465  *
 466  * @param[in] priv
 467  *   Pointer to the private device data structure.
 468  *
 469  * @return
 470  *   Zero on success, positive error code otherwise.
 471  */
 472 static int
 473 mlx5_alloc_shared_dr(struct mlx5_priv *priv)
 474 {
 475         struct mlx5_dev_ctx_shared *sh = priv->sh;
 476         char s[MLX5_NAME_SIZE] __rte_unused;
 477         int err;
 478
 479         MLX5_ASSERT(sh && sh->refcnt);
 480         if (sh->refcnt > 1)
 481                 return 0;
 482         err = mlx5_alloc_table_hash_list(priv);
 483         if (err)
 484                 goto error;
 485         if (priv->sh->config.dv_flow_en == 2)
 486                 return 0;
 487         /* The resources below are only valid with DV support. */
 488 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 489         /* Init port id action list. */
 490         snprintf(s, sizeof(s), "%s_port_id_action_list", sh->ibdev_name);
 491         sh->port_id_action_list = mlx5_list_create(s, sh, true,
 492                                                    flow_dv_port_id_create_cb,
 493                                                    flow_dv_port_id_match_cb,
 494                                                    flow_dv_port_id_remove_cb,
 495                                                    flow_dv_port_id_clone_cb,
 496                                                  flow_dv_port_id_clone_free_cb);
 497         if (!sh->port_id_action_list)
 498                 goto error;
 499         /* Init push vlan action list. */
 500         snprintf(s, sizeof(s), "%s_push_vlan_action_list", sh->ibdev_name);
 501         sh->push_vlan_action_list = mlx5_list_create(s, sh, true,
 502                                                     flow_dv_push_vlan_create_cb,
 503                                                     flow_dv_push_vlan_match_cb,
 504                                                     flow_dv_push_vlan_remove_cb,
 505                                                     flow_dv_push_vlan_clone_cb,
 506                                                flow_dv_push_vlan_clone_free_cb);
 507         if (!sh->push_vlan_action_list)
 508                 goto error;
 509         /* Init sample action list. */
 510         snprintf(s, sizeof(s), "%s_sample_action_list", sh->ibdev_name);
 511         sh->sample_action_list = mlx5_list_create(s, sh, true,
 512                                                   flow_dv_sample_create_cb,
 513                                                   flow_dv_sample_match_cb,
 514                                                   flow_dv_sample_remove_cb,
 515                                                   flow_dv_sample_clone_cb,
 516                                                   flow_dv_sample_clone_free_cb);
 517         if (!sh->sample_action_list)
 518                 goto error;
 519         /* Init dest array action list. */
 520         snprintf(s, sizeof(s), "%s_dest_array_list", sh->ibdev_name);
 521         sh->dest_array_list = mlx5_list_create(s, sh, true,
 522                                                flow_dv_dest_array_create_cb,
 523                                                flow_dv_dest_array_match_cb,
 524                                                flow_dv_dest_array_remove_cb,
 525                                                flow_dv_dest_array_clone_cb,
 526                                               flow_dv_dest_array_clone_free_cb);
 527         if (!sh->dest_array_list)
 528                 goto error;
 529         /* Init shared flex parsers list, no need lcore_share */
 530         snprintf(s, sizeof(s), "%s_flex_parsers_list", sh->ibdev_name);
 531         sh->flex_parsers_dv = mlx5_list_create(s, sh, false,
 532                                                mlx5_flex_parser_create_cb,
 533                                                mlx5_flex_parser_match_cb,
 534                                                mlx5_flex_parser_remove_cb,
 535                                                mlx5_flex_parser_clone_cb,
 536                                                mlx5_flex_parser_clone_free_cb);
 537         if (!sh->flex_parsers_dv)
 538                 goto error;
 539 #endif
 540 #ifdef HAVE_MLX5DV_DR
 541         void *domain;
 542
 543         /* Reference counter is zero, we should initialize structures. */
 544         domain = mlx5_glue->dr_create_domain(sh->cdev->ctx,
 545                                              MLX5DV_DR_DOMAIN_TYPE_NIC_RX);
 546         if (!domain) {
 547                 DRV_LOG(ERR, "ingress mlx5dv_dr_create_domain failed");
 548                 err = errno;
 549                 goto error;
 550         }
 551         sh->rx_domain = domain;
 552         domain = mlx5_glue->dr_create_domain(sh->cdev->ctx,
 553                                              MLX5DV_DR_DOMAIN_TYPE_NIC_TX);
 554         if (!domain) {
 555                 DRV_LOG(ERR, "egress mlx5dv_dr_create_domain failed");
 556                 err = errno;
 557                 goto error;
 558         }
 559         sh->tx_domain = domain;
 560 #ifdef HAVE_MLX5DV_DR_ESWITCH
 561         if (sh->config.dv_esw_en) {
 562                 domain = mlx5_glue->dr_create_domain(sh->cdev->ctx,
 563                                                      MLX5DV_DR_DOMAIN_TYPE_FDB);
 564                 if (!domain) {
 565                         DRV_LOG(ERR, "FDB mlx5dv_dr_create_domain failed");
 566                         err = errno;
 567                         goto error;
 568                 }
 569                 sh->fdb_domain = domain;
 570         }
 571         /*
 572          * The drop action is just some dummy placeholder in rdma-core. It
 573          * does not belong to domains and has no any attributes, and, can be
 574          * shared by the entire device.
 575          */
 576         sh->dr_drop_action = mlx5_glue->dr_create_flow_action_drop();
 577         if (!sh->dr_drop_action) {
 578                 DRV_LOG(ERR, "FDB mlx5dv_dr_create_flow_action_drop");
 579                 err = errno;
 580                 goto error;
 581         }
 582 #endif
 583         if (!sh->tunnel_hub && sh->config.dv_miss_info)
 584                 err = mlx5_alloc_tunnel_hub(sh);
 585         if (err) {
 586                 DRV_LOG(ERR, "mlx5_alloc_tunnel_hub failed err=%d", err);
 587                 goto error;
 588         }
 589         if (sh->config.reclaim_mode == MLX5_RCM_AGGR) {
 590                 mlx5_glue->dr_reclaim_domain_memory(sh->rx_domain, 1);
 591                 mlx5_glue->dr_reclaim_domain_memory(sh->tx_domain, 1);
 592                 if (sh->fdb_domain)
 593                         mlx5_glue->dr_reclaim_domain_memory(sh->fdb_domain, 1);
 594         }
 595         sh->pop_vlan_action = mlx5_glue->dr_create_flow_action_pop_vlan();
 596         if (!sh->config.allow_duplicate_pattern) {
 597 #ifndef HAVE_MLX5_DR_ALLOW_DUPLICATE
 598                 DRV_LOG(WARNING, "Disallow duplicate pattern is not supported - maybe old rdma-core version?");
 599 #endif
 600                 mlx5_glue->dr_allow_duplicate_rules(sh->rx_domain, 0);
 601                 mlx5_glue->dr_allow_duplicate_rules(sh->tx_domain, 0);
 602                 if (sh->fdb_domain)
 603                         mlx5_glue->dr_allow_duplicate_rules(sh->fdb_domain, 0);
 604         }
 605
 606         __mlx5_discovery_misc5_cap(priv);
 607 #endif /* HAVE_MLX5DV_DR */
 608         sh->default_miss_action =
 609                         mlx5_glue->dr_create_flow_action_default_miss();
 610         if (!sh->default_miss_action)
 611                 DRV_LOG(WARNING, "Default miss action is not supported.");
 612         LIST_INIT(&sh->shared_rxqs);
 613         return 0;
 614 error:
 615         /* Rollback the created objects. */
 616         if (sh->rx_domain) {
 617                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 618                 sh->rx_domain = NULL;
 619         }
 620         if (sh->tx_domain) {
 621                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 622                 sh->tx_domain = NULL;
 623         }
 624         if (sh->fdb_domain) {
 625                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 626                 sh->fdb_domain = NULL;
 627         }
 628         if (sh->dr_drop_action) {
 629                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 630                 sh->dr_drop_action = NULL;
 631         }
 632         if (sh->pop_vlan_action) {
 633                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 634                 sh->pop_vlan_action = NULL;
 635         }
 636         if (sh->encaps_decaps) {
 637                 mlx5_hlist_destroy(sh->encaps_decaps);
 638                 sh->encaps_decaps = NULL;
 639         }
 640         if (sh->modify_cmds) {
 641                 mlx5_hlist_destroy(sh->modify_cmds);
 642                 sh->modify_cmds = NULL;
 643         }
 644         if (sh->tag_table) {
 645                 /* tags should be destroyed with flow before. */
 646                 mlx5_hlist_destroy(sh->tag_table);
 647                 sh->tag_table = NULL;
 648         }
 649         if (sh->tunnel_hub) {
 650                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 651                 sh->tunnel_hub = NULL;
 652         }
 653         mlx5_free_table_hash_list(priv);
 654         if (sh->port_id_action_list) {
 655                 mlx5_list_destroy(sh->port_id_action_list);
 656                 sh->port_id_action_list = NULL;
 657         }
 658         if (sh->push_vlan_action_list) {
 659                 mlx5_list_destroy(sh->push_vlan_action_list);
 660                 sh->push_vlan_action_list = NULL;
 661         }
 662         if (sh->sample_action_list) {
 663                 mlx5_list_destroy(sh->sample_action_list);
 664                 sh->sample_action_list = NULL;
 665         }
 666         if (sh->dest_array_list) {
 667                 mlx5_list_destroy(sh->dest_array_list);
 668                 sh->dest_array_list = NULL;
 669         }
 670         return err;
 671 }
 672
 673 /**
 674  * Destroy DR related data within private structure.
 675  *
 676  * @param[in] priv
 677  *   Pointer to the private device data structure.
 678  */
 679 void
 680 mlx5_os_free_shared_dr(struct mlx5_priv *priv)
 681 {
 682         struct mlx5_dev_ctx_shared *sh = priv->sh;
 683
 684         MLX5_ASSERT(sh && sh->refcnt);
 685         if (sh->refcnt > 1)
 686                 return;
 687         MLX5_ASSERT(LIST_EMPTY(&sh->shared_rxqs));
 688 #ifdef HAVE_MLX5DV_DR
 689         if (sh->rx_domain) {
 690                 mlx5_glue->dr_destroy_domain(sh->rx_domain);
 691                 sh->rx_domain = NULL;
 692         }
 693         if (sh->tx_domain) {
 694                 mlx5_glue->dr_destroy_domain(sh->tx_domain);
 695                 sh->tx_domain = NULL;
 696         }
 697 #ifdef HAVE_MLX5DV_DR_ESWITCH
 698         if (sh->fdb_domain) {
 699                 mlx5_glue->dr_destroy_domain(sh->fdb_domain);
 700                 sh->fdb_domain = NULL;
 701         }
 702         if (sh->dr_drop_action) {
 703                 mlx5_glue->destroy_flow_action(sh->dr_drop_action);
 704                 sh->dr_drop_action = NULL;
 705         }
 706 #endif
 707         if (sh->pop_vlan_action) {
 708                 mlx5_glue->destroy_flow_action(sh->pop_vlan_action);
 709                 sh->pop_vlan_action = NULL;
 710         }
 711 #endif /* HAVE_MLX5DV_DR */
 712         if (sh->default_miss_action)
 713                 mlx5_glue->destroy_flow_action
 714                                 (sh->default_miss_action);
 715         if (sh->encaps_decaps) {
 716                 mlx5_hlist_destroy(sh->encaps_decaps);
 717                 sh->encaps_decaps = NULL;
 718         }
 719         if (sh->modify_cmds) {
 720                 mlx5_hlist_destroy(sh->modify_cmds);
 721                 sh->modify_cmds = NULL;
 722         }
 723         if (sh->tag_table) {
 724                 /* tags should be destroyed with flow before. */
 725                 mlx5_hlist_destroy(sh->tag_table);
 726                 sh->tag_table = NULL;
 727         }
 728         if (sh->tunnel_hub) {
 729                 mlx5_release_tunnel_hub(sh, priv->dev_port);
 730                 sh->tunnel_hub = NULL;
 731         }
 732         mlx5_free_table_hash_list(priv);
 733         if (sh->port_id_action_list) {
 734                 mlx5_list_destroy(sh->port_id_action_list);
 735                 sh->port_id_action_list = NULL;
 736         }
 737         if (sh->push_vlan_action_list) {
 738                 mlx5_list_destroy(sh->push_vlan_action_list);
 739                 sh->push_vlan_action_list = NULL;
 740         }
 741         if (sh->sample_action_list) {
 742                 mlx5_list_destroy(sh->sample_action_list);
 743                 sh->sample_action_list = NULL;
 744         }
 745         if (sh->dest_array_list) {
 746                 mlx5_list_destroy(sh->dest_array_list);
 747                 sh->dest_array_list = NULL;
 748         }
 749 }
 750
 751 /**
 752  * Initialize shared data between primary and secondary process.
 753  *
 754  * A memzone is reserved by primary process and secondary processes attach to
 755  * the memzone.
 756  *
 757  * @return
 758  *   0 on success, a negative errno value otherwise and rte_errno is set.
 759  */
 760 static int
 761 mlx5_init_shared_data(void)
 762 {
 763         const struct rte_memzone *mz;
 764         int ret = 0;
 765
 766         rte_spinlock_lock(&mlx5_shared_data_lock);
 767         if (mlx5_shared_data == NULL) {
 768                 if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
 769                         /* Allocate shared memory. */
 770                         mz = rte_memzone_reserve(MZ_MLX5_PMD_SHARED_DATA,
 771                                                  sizeof(*mlx5_shared_data),
 772                                                  SOCKET_ID_ANY, 0);
 773                         if (mz == NULL) {
 774                                 DRV_LOG(ERR,
 775                                         "Cannot allocate mlx5 shared data");
 776                                 ret = -rte_errno;
 777                                 goto error;
 778                         }
 779                         mlx5_shared_data = mz->addr;
 780                         memset(mlx5_shared_data, 0, sizeof(*mlx5_shared_data));
 781                         rte_spinlock_init(&mlx5_shared_data->lock);
 782                 } else {
 783                         /* Lookup allocated shared memory. */
 784                         mz = rte_memzone_lookup(MZ_MLX5_PMD_SHARED_DATA);
 785                         if (mz == NULL) {
 786                                 DRV_LOG(ERR,
 787                                         "Cannot attach mlx5 shared data");
 788                                 ret = -rte_errno;
 789                                 goto error;
 790                         }
 791                         mlx5_shared_data = mz->addr;
 792                         memset(&mlx5_local_data, 0, sizeof(mlx5_local_data));
 793                 }
 794         }
 795 error:
 796         rte_spinlock_unlock(&mlx5_shared_data_lock);
 797         return ret;
 798 }
 799
 800 /**
 801  * PMD global initialization.
 802  *
 803  * Independent from individual device, this function initializes global
 804  * per-PMD data structures distinguishing primary and secondary processes.
 805  * Hence, each initialization is called once per a process.
 806  *
 807  * @return
 808  *   0 on success, a negative errno value otherwise and rte_errno is set.
 809  */
 810 static int
 811 mlx5_init_once(void)
 812 {
 813         struct mlx5_shared_data *sd;
 814         struct mlx5_local_data *ld = &mlx5_local_data;
 815         int ret = 0;
 816
 817         if (mlx5_init_shared_data())
 818                 return -rte_errno;
 819         sd = mlx5_shared_data;
 820         MLX5_ASSERT(sd);
 821         rte_spinlock_lock(&sd->lock);
 822         switch (rte_eal_process_type()) {
 823         case RTE_PROC_PRIMARY:
 824                 if (sd->init_done)
 825                         break;
 826                 ret = mlx5_mp_init_primary(MLX5_MP_NAME,
 827                                            mlx5_mp_os_primary_handle);
 828                 if (ret)
 829                         goto out;
 830                 sd->init_done = true;
 831                 break;
 832         case RTE_PROC_SECONDARY:
 833                 if (ld->init_done)
 834                         break;
 835                 ret = mlx5_mp_init_secondary(MLX5_MP_NAME,
 836                                              mlx5_mp_os_secondary_handle);
 837                 if (ret)
 838                         goto out;
 839                 ++sd->secondary_cnt;
 840                 ld->init_done = true;
 841                 break;
 842         default:
 843                 break;
 844         }
 845 out:
 846         rte_spinlock_unlock(&sd->lock);
 847         return ret;
 848 }
 849
 850 /**
 851  * DR flow drop action support detect.
 852  *
 853  * @param dev
 854  *   Pointer to rte_eth_dev structure.
 855  *
 856  */
 857 static void
 858 mlx5_flow_drop_action_config(struct rte_eth_dev *dev __rte_unused)
 859 {
 860 #ifdef HAVE_MLX5DV_DR
 861         struct mlx5_priv *priv = dev->data->dev_private;
 862
 863         if (!priv->sh->config.dv_flow_en || !priv->sh->dr_drop_action)
 864                 return;
 865         /**
 866          * DR supports drop action placeholder when it is supported;
 867          * otherwise, use the queue drop action.
 868          */
 869         if (!priv->sh->drop_action_check_flag) {
 870                 if (!mlx5_flow_discover_dr_action_support(dev))
 871                         priv->sh->dr_drop_action_en = 1;
 872                 priv->sh->drop_action_check_flag = 1;
 873         }
 874         if (priv->sh->dr_drop_action_en)
 875                 priv->root_drop_action = priv->sh->dr_drop_action;
 876         else
 877                 priv->root_drop_action = priv->drop_queue.hrxq->action;
 878 #endif
 879 }
 880
 881 static void
 882 mlx5_queue_counter_id_prepare(struct rte_eth_dev *dev)
 883 {
 884         struct mlx5_priv *priv = dev->data->dev_private;
 885         void *ctx = priv->sh->cdev->ctx;
 886
 887         priv->q_counters = mlx5_devx_cmd_queue_counter_alloc(ctx);
 888         if (!priv->q_counters) {
 889                 struct ibv_cq *cq = mlx5_glue->create_cq(ctx, 1, NULL, NULL, 0);
 890                 struct ibv_wq *wq;
 891
 892                 DRV_LOG(DEBUG, "Port %d queue counter object cannot be created "
 893                         "by DevX - fall-back to use the kernel driver global "
 894                         "queue counter.", dev->data->port_id);
 895                 /* Create WQ by kernel and query its queue counter ID. */
 896                 if (cq) {
 897                         wq = mlx5_glue->create_wq(ctx,
 898                                                   &(struct ibv_wq_init_attr){
 899                                                     .wq_type = IBV_WQT_RQ,
 900                                                     .max_wr = 1,
 901                                                     .max_sge = 1,
 902                                                     .pd = priv->sh->cdev->pd,
 903                                                     .cq = cq,
 904                                                 });
 905                         if (wq) {
 906                                 /* Counter is assigned only on RDY state. */
 907                                 int ret = mlx5_glue->modify_wq(wq,
 908                                                  &(struct ibv_wq_attr){
 909                                                  .attr_mask = IBV_WQ_ATTR_STATE,
 910                                                  .wq_state = IBV_WQS_RDY,
 911                                                 });
 912
 913                                 if (ret == 0)
 914                                         mlx5_devx_cmd_wq_query(wq,
 915                                                          &priv->counter_set_id);
 916                                 claim_zero(mlx5_glue->destroy_wq(wq));
 917                         }
 918                         claim_zero(mlx5_glue->destroy_cq(cq));
 919                 }
 920         } else {
 921                 priv->counter_set_id = priv->q_counters->id;
 922         }
 923         if (priv->counter_set_id == 0)
 924                 DRV_LOG(INFO, "Part of the port %d statistics will not be "
 925                         "available.", dev->data->port_id);
 926 }
 927
 928 /**
 929  * Check if representor spawn info match devargs.
 930  *
 931  * @param spawn
 932  *   Verbs device parameters (name, port, switch_info) to spawn.
 933  * @param eth_da
 934  *   Device devargs to probe.
 935  *
 936  * @return
 937  *   Match result.
 938  */
 939 static bool
 940 mlx5_representor_match(struct mlx5_dev_spawn_data *spawn,
 941                        struct rte_eth_devargs *eth_da)
 942 {
 943         struct mlx5_switch_info *switch_info = &spawn->info;
 944         unsigned int p, f;
 945         uint16_t id;
 946         uint16_t repr_id = mlx5_representor_id_encode(switch_info,
 947                                                       eth_da->type);
 948
 949         switch (eth_da->type) {
 950         case RTE_ETH_REPRESENTOR_SF:
 951                 if (!(spawn->info.port_name == -1 &&
 952                       switch_info->name_type ==
 953                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 954                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFSF) {
 955                         rte_errno = EBUSY;
 956                         return false;
 957                 }
 958                 break;
 959         case RTE_ETH_REPRESENTOR_VF:
 960                 /* Allows HPF representor index -1 as exception. */
 961                 if (!(spawn->info.port_name == -1 &&
 962                       switch_info->name_type ==
 963                                 MLX5_PHYS_PORT_NAME_TYPE_PFHPF) &&
 964                     switch_info->name_type != MLX5_PHYS_PORT_NAME_TYPE_PFVF) {
 965                         rte_errno = EBUSY;
 966                         return false;
 967                 }
 968                 break;
 969         case RTE_ETH_REPRESENTOR_NONE:
 970                 rte_errno = EBUSY;
 971                 return false;
 972         default:
 973                 rte_errno = ENOTSUP;
 974                 DRV_LOG(ERR, "unsupported representor type");
 975                 return false;
 976         }
 977         /* Check representor ID: */
 978         for (p = 0; p < eth_da->nb_ports; ++p) {
 979                 if (spawn->pf_bond < 0) {
 980                         /* For non-LAG mode, allow and ignore pf. */
 981                         switch_info->pf_num = eth_da->ports[p];
 982                         repr_id = mlx5_representor_id_encode(switch_info,
 983                                                              eth_da->type);
 984                 }
 985                 for (f = 0; f < eth_da->nb_representor_ports; ++f) {
 986                         id = MLX5_REPRESENTOR_ID
 987                                 (eth_da->ports[p], eth_da->type,
 988                                  eth_da->representor_ports[f]);
 989                         if (repr_id == id)
 990                                 return true;
 991                 }
 992         }
 993         rte_errno = EBUSY;
 994         return false;
 995 }
 996
 997 /**
 998  * Spawn an Ethernet device from Verbs information.
 999  *
1000  * @param dpdk_dev
1001  *   Backing DPDK device.
1002  * @param spawn
1003  *   Verbs device parameters (name, port, switch_info) to spawn.
1004  * @param eth_da
1005  *   Device arguments.
1006  * @param mkvlist
1007  *   Pointer to mlx5 kvargs control, can be NULL if there is no devargs.
1008  *
1009  * @return
1010  *   A valid Ethernet device object on success, NULL otherwise and rte_errno
1011  *   is set. The following errors are defined:
1012  *
1013  *   EBUSY: device is not supposed to be spawned.
1014  *   EEXIST: device is already spawned
1015  */
1016 static struct rte_eth_dev *
1017 mlx5_dev_spawn(struct rte_device *dpdk_dev,
1018                struct mlx5_dev_spawn_data *spawn,
1019                struct rte_eth_devargs *eth_da,
1020                struct mlx5_kvargs_ctrl *mkvlist)
1021 {
1022         const struct mlx5_switch_info *switch_info = &spawn->info;
1023         struct mlx5_dev_ctx_shared *sh = NULL;
1024         struct ibv_port_attr port_attr = { .state = IBV_PORT_NOP };
1025         struct rte_eth_dev *eth_dev = NULL;
1026         struct mlx5_priv *priv = NULL;
1027         int err = 0;
1028         struct rte_ether_addr mac;
1029         char name[RTE_ETH_NAME_MAX_LEN];
1030         int own_domain_id = 0;
1031         uint16_t port_id;
1032         struct mlx5_port_info vport_info = { .query_flags = 0 };
1033         int nl_rdma;
1034         int i;
1035
1036         /* Determine if this port representor is supposed to be spawned. */
1037         if (switch_info->representor && dpdk_dev->devargs &&
1038             !mlx5_representor_match(spawn, eth_da))
1039                 return NULL;
1040         /* Build device name. */
1041         if (spawn->pf_bond < 0) {
1042                 /* Single device. */
1043                 if (!switch_info->representor)
1044                         strlcpy(name, dpdk_dev->name, sizeof(name));
1045                 else
1046                         err = snprintf(name, sizeof(name), "%s_representor_%s%u",
1047                                  dpdk_dev->name,
1048                                  switch_info->name_type ==
1049                                  MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
1050                                  switch_info->port_name);
1051         } else {
1052                 /* Bonding device. */
1053                 if (!switch_info->representor) {
1054                         err = snprintf(name, sizeof(name), "%s_%s",
1055                                        dpdk_dev->name, spawn->phys_dev_name);
1056                 } else {
1057                         err = snprintf(name, sizeof(name), "%s_%s_representor_c%dpf%d%s%u",
1058                                 dpdk_dev->name, spawn->phys_dev_name,
1059                                 switch_info->ctrl_num,
1060                                 switch_info->pf_num,
1061                                 switch_info->name_type ==
1062                                 MLX5_PHYS_PORT_NAME_TYPE_PFSF ? "sf" : "vf",
1063                                 switch_info->port_name);
1064                 }
1065         }
1066         if (err >= (int)sizeof(name))
1067                 DRV_LOG(WARNING, "device name overflow %s", name);
1068         /* check if the device is already spawned */
1069         if (rte_eth_dev_get_port_by_name(name, &port_id) == 0) {
1070                 /*
1071                  * When device is already spawned, its devargs should be set
1072                  * as used. otherwise, mlx5_kvargs_validate() will fail.
1073                  */
1074                 if (mkvlist)
1075                         mlx5_port_args_set_used(name, port_id, mkvlist);
1076                 rte_errno = EEXIST;
1077                 return NULL;
1078         }
1079         DRV_LOG(DEBUG, "naming Ethernet device \"%s\"", name);
1080         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1081                 struct mlx5_mp_id mp_id;
1082
1083                 eth_dev = rte_eth_dev_attach_secondary(name);
1084                 if (eth_dev == NULL) {
1085                         DRV_LOG(ERR, "can not attach rte ethdev");
1086                         rte_errno = ENOMEM;
1087                         return NULL;
1088                 }
1089                 eth_dev->device = dpdk_dev;
1090                 eth_dev->dev_ops = &mlx5_dev_sec_ops;
1091                 eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1092                 eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1093                 err = mlx5_proc_priv_init(eth_dev);
1094                 if (err)
1095                         return NULL;
1096                 mlx5_mp_id_init(&mp_id, eth_dev->data->port_id);
1097                 /* Receive command fd from primary process */
1098                 err = mlx5_mp_req_verbs_cmd_fd(&mp_id);
1099                 if (err < 0)
1100                         goto err_secondary;
1101                 /* Remap UAR for Tx queues. */
1102                 err = mlx5_tx_uar_init_secondary(eth_dev, err);
1103                 if (err)
1104                         goto err_secondary;
1105                 /*
1106                  * Ethdev pointer is still required as input since
1107                  * the primary device is not accessible from the
1108                  * secondary process.
1109                  */
1110                 eth_dev->rx_pkt_burst = mlx5_select_rx_function(eth_dev);
1111                 eth_dev->tx_pkt_burst = mlx5_select_tx_function(eth_dev);
1112                 return eth_dev;
1113 err_secondary:
1114                 mlx5_dev_close(eth_dev);
1115                 return NULL;
1116         }
1117         sh = mlx5_alloc_shared_dev_ctx(spawn, mkvlist);
1118         if (!sh)
1119                 return NULL;
1120         nl_rdma = mlx5_nl_init(NETLINK_RDMA, 0);
1121         /* Check port status. */
1122         if (spawn->phys_port <= UINT8_MAX) {
1123                 /* Legacy Verbs api only support u8 port number. */
1124                 err = mlx5_glue->query_port(sh->cdev->ctx, spawn->phys_port,
1125                                             &port_attr);
1126                 if (err) {
1127                         DRV_LOG(ERR, "port query failed: %s", strerror(err));
1128                         goto error;
1129                 }
1130                 if (port_attr.link_layer != IBV_LINK_LAYER_ETHERNET) {
1131                         DRV_LOG(ERR, "port is not configured in Ethernet mode");
1132                         err = EINVAL;
1133                         goto error;
1134                 }
1135         } else if (nl_rdma >= 0) {
1136                 /* IB doesn't allow more than 255 ports, must be Ethernet. */
1137                 err = mlx5_nl_port_state(nl_rdma,
1138                         spawn->phys_dev_name,
1139                         spawn->phys_port);
1140                 if (err < 0) {
1141                         DRV_LOG(INFO, "Failed to get netlink port state: %s",
1142                                 strerror(rte_errno));
1143                         err = -rte_errno;
1144                         goto error;
1145                 }
1146                 port_attr.state = (enum ibv_port_state)err;
1147         }
1148         if (port_attr.state != IBV_PORT_ACTIVE)
1149                 DRV_LOG(INFO, "port is not active: \"%s\" (%d)",
1150                         mlx5_glue->port_state_str(port_attr.state),
1151                         port_attr.state);
1152         /* Allocate private eth device data. */
1153         priv = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1154                            sizeof(*priv),
1155                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
1156         if (priv == NULL) {
1157                 DRV_LOG(ERR, "priv allocation failure");
1158                 err = ENOMEM;
1159                 goto error;
1160         }
1161         /*
1162          * When user configures remote PD and CTX and device creates RxQ by
1163          * DevX, external RxQ is both supported and requested.
1164          */
1165         if (mlx5_imported_pd_and_ctx(sh->cdev) && mlx5_devx_obj_ops_en(sh)) {
1166                 priv->ext_rxqs = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
1167                                              sizeof(struct mlx5_external_rxq) *
1168                                              MLX5_MAX_EXT_RX_QUEUES, 0,
1169                                              SOCKET_ID_ANY);
1170                 if (priv->ext_rxqs == NULL) {
1171                         DRV_LOG(ERR, "Fail to allocate external RxQ array.");
1172                         err = ENOMEM;
1173                         goto error;
1174                 }
1175                 DRV_LOG(DEBUG, "External RxQ is supported.");
1176         }
1177         priv->sh = sh;
1178         priv->dev_port = spawn->phys_port;
1179         priv->pci_dev = spawn->pci_dev;
1180         priv->mtu = RTE_ETHER_MTU;
1181         /* Some internal functions rely on Netlink sockets, open them now. */
1182         priv->nl_socket_rdma = nl_rdma;
1183         priv->nl_socket_route = mlx5_nl_init(NETLINK_ROUTE, 0);
1184         priv->representor = !!switch_info->representor;
1185         priv->master = !!switch_info->master;
1186         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1187         priv->vport_meta_tag = 0;
1188         priv->vport_meta_mask = 0;
1189         priv->pf_bond = spawn->pf_bond;
1190
1191         DRV_LOG(DEBUG,
1192                 "dev_port=%u bus=%s pci=%s master=%d representor=%d pf_bond=%d\n",
1193                 priv->dev_port, dpdk_dev->bus->name,
1194                 priv->pci_dev ? priv->pci_dev->name : "NONE",
1195                 priv->master, priv->representor, priv->pf_bond);
1196
1197         /*
1198          * If we have E-Switch we should determine the vport attributes.
1199          * E-Switch may use either source vport field or reg_c[0] metadata
1200          * register to match on vport index. The engaged part of metadata
1201          * register is defined by mask.
1202          */
1203         if (sh->esw_mode) {
1204                 err = mlx5_glue->devx_port_query(sh->cdev->ctx,
1205                                                  spawn->phys_port,
1206                                                  &vport_info);
1207                 if (err) {
1208                         DRV_LOG(WARNING,
1209                                 "Cannot query devx port %d on device %s",
1210                                 spawn->phys_port, spawn->phys_dev_name);
1211                         vport_info.query_flags = 0;
1212                 }
1213         }
1214         if (vport_info.query_flags & MLX5_PORT_QUERY_REG_C0) {
1215                 priv->vport_meta_tag = vport_info.vport_meta_tag;
1216                 priv->vport_meta_mask = vport_info.vport_meta_mask;
1217                 if (!priv->vport_meta_mask) {
1218                         DRV_LOG(ERR,
1219                                 "vport zero mask for port %d on bonding device %s",
1220                                 spawn->phys_port, spawn->phys_dev_name);
1221                         err = ENOTSUP;
1222                         goto error;
1223                 }
1224                 if (priv->vport_meta_tag & ~priv->vport_meta_mask) {
1225                         DRV_LOG(ERR,
1226                                 "Invalid vport tag for port %d on bonding device %s",
1227                                 spawn->phys_port, spawn->phys_dev_name);
1228                         err = ENOTSUP;
1229                         goto error;
1230                 }
1231         }
1232         if (vport_info.query_flags & MLX5_PORT_QUERY_VPORT) {
1233                 priv->vport_id = vport_info.vport_id;
1234         } else if (spawn->pf_bond >= 0 && sh->esw_mode) {
1235                 DRV_LOG(ERR,
1236                         "Cannot deduce vport index for port %d on bonding device %s",
1237                         spawn->phys_port, spawn->phys_dev_name);
1238                 err = ENOTSUP;
1239                 goto error;
1240         } else {
1241                 /*
1242                  * Suppose vport index in compatible way. Kernel/rdma_core
1243                  * support single E-Switch per PF configurations only and
1244                  * vport_id field contains the vport index for associated VF,
1245                  * which is deduced from representor port name.
1246                  * For example, let's have the IB device port 10, it has
1247                  * attached network device eth0, which has port name attribute
1248                  * pf0vf2, we can deduce the VF number as 2, and set vport index
1249                  * as 3 (2+1). This assigning schema should be changed if the
1250                  * multiple E-Switch instances per PF configurations or/and PCI
1251                  * subfunctions are added.
1252                  */
1253                 priv->vport_id = switch_info->representor ?
1254                                  switch_info->port_name + 1 : -1;
1255         }
1256         priv->representor_id = mlx5_representor_id_encode(switch_info,
1257                                                           eth_da->type);
1258         /*
1259          * Look for sibling devices in order to reuse their switch domain
1260          * if any, otherwise allocate one.
1261          */
1262         MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) {
1263                 const struct mlx5_priv *opriv =
1264                         rte_eth_devices[port_id].data->dev_private;
1265
1266                 if (!opriv ||
1267                     opriv->sh != priv->sh ||
1268                         opriv->domain_id ==
1269                         RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID)
1270                         continue;
1271                 priv->domain_id = opriv->domain_id;
1272                 DRV_LOG(DEBUG, "dev_port-%u inherit domain_id=%u\n",
1273                         priv->dev_port, priv->domain_id);
1274                 break;
1275         }
1276         if (priv->domain_id == RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1277                 err = rte_eth_switch_domain_alloc(&priv->domain_id);
1278                 if (err) {
1279                         err = rte_errno;
1280                         DRV_LOG(ERR, "unable to allocate switch domain: %s",
1281                                 strerror(rte_errno));
1282                         goto error;
1283                 }
1284                 own_domain_id = 1;
1285                 DRV_LOG(DEBUG, "dev_port-%u new domain_id=%u\n",
1286                         priv->dev_port, priv->domain_id);
1287         }
1288         if (sh->cdev->config.devx) {
1289                 struct mlx5_hca_attr *hca_attr = &sh->cdev->config.hca_attr;
1290
1291                 sh->steering_format_version = hca_attr->steering_format_version;
1292 #if defined(HAVE_MLX5DV_DR) && \
1293         (defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER) || \
1294          defined(HAVE_MLX5_DR_CREATE_ACTION_ASO))
1295                 if (hca_attr->qos.sup && hca_attr->qos.flow_meter_old &&
1296                     sh->config.dv_flow_en) {
1297                         uint8_t reg_c_mask = hca_attr->qos.flow_meter_reg_c_ids;
1298                         /*
1299                          * Meter needs two REG_C's for color match and pre-sfx
1300                          * flow match. Here get the REG_C for color match.
1301                          * REG_C_0 and REG_C_1 is reserved for metadata feature.
1302                          */
1303                         reg_c_mask &= 0xfc;
1304                         if (__builtin_popcount(reg_c_mask) < 1) {
1305                                 priv->mtr_en = 0;
1306                                 DRV_LOG(WARNING, "No available register for"
1307                                         " meter.");
1308                         } else {
1309                                 /*
1310                                  * The meter color register is used by the
1311                                  * flow-hit feature as well.
1312                                  * The flow-hit feature must use REG_C_3
1313                                  * Prefer REG_C_3 if it is available.
1314                                  */
1315                                 if (reg_c_mask & (1 << (REG_C_3 - REG_C_0)))
1316                                         priv->mtr_color_reg = REG_C_3;
1317                                 else
1318                                         priv->mtr_color_reg = ffs(reg_c_mask)
1319                                                               - 1 + REG_C_0;
1320                                 priv->mtr_en = 1;
1321                                 priv->mtr_reg_share = hca_attr->qos.flow_meter;
1322                                 DRV_LOG(DEBUG, "The REG_C meter uses is %d",
1323                                         priv->mtr_color_reg);
1324                         }
1325                 }
1326                 if (hca_attr->qos.sup && hca_attr->qos.flow_meter_aso_sup) {
1327                         uint32_t log_obj_size =
1328                                 rte_log2_u32(MLX5_ASO_MTRS_PER_POOL >> 1);
1329                         if (log_obj_size >=
1330                             hca_attr->qos.log_meter_aso_granularity &&
1331                             log_obj_size <=
1332                             hca_attr->qos.log_meter_aso_max_alloc)
1333                                 sh->meter_aso_en = 1;
1334                 }
1335                 if (priv->mtr_en) {
1336                         err = mlx5_aso_flow_mtrs_mng_init(priv->sh);
1337                         if (err) {
1338                                 err = -err;
1339                                 goto error;
1340                         }
1341                 }
1342                 if (hca_attr->flow.tunnel_header_0_1)
1343                         sh->tunnel_header_0_1 = 1;
1344                 if (hca_attr->flow.tunnel_header_2_3)
1345                         sh->tunnel_header_2_3 = 1;
1346 #endif
1347 #ifdef HAVE_MLX5_DR_CREATE_ACTION_ASO
1348                 if (hca_attr->flow_hit_aso && priv->mtr_color_reg == REG_C_3) {
1349                         sh->flow_hit_aso_en = 1;
1350                         err = mlx5_flow_aso_age_mng_init(sh);
1351                         if (err) {
1352                                 err = -err;
1353                                 goto error;
1354                         }
1355                         DRV_LOG(DEBUG, "Flow Hit ASO is supported.");
1356                 }
1357 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO */
1358 #if defined(HAVE_MLX5_DR_CREATE_ACTION_ASO) && \
1359         defined(HAVE_MLX5_DR_ACTION_ASO_CT)
1360                 if (hca_attr->ct_offload && priv->mtr_color_reg == REG_C_3) {
1361                         err = mlx5_flow_aso_ct_mng_init(sh);
1362                         if (err) {
1363                                 err = -err;
1364                                 goto error;
1365                         }
1366                         DRV_LOG(DEBUG, "CT ASO is supported.");
1367                         sh->ct_aso_en = 1;
1368                 }
1369 #endif /* HAVE_MLX5_DR_CREATE_ACTION_ASO && HAVE_MLX5_DR_ACTION_ASO_CT */
1370 #if defined(HAVE_MLX5DV_DR) && defined(HAVE_MLX5_DR_CREATE_ACTION_FLOW_SAMPLE)
1371                 if (hca_attr->log_max_ft_sampler_num > 0  &&
1372                     sh->config.dv_flow_en) {
1373                         priv->sampler_en = 1;
1374                         DRV_LOG(DEBUG, "Sampler enabled!");
1375                 } else {
1376                         priv->sampler_en = 0;
1377                         if (!hca_attr->log_max_ft_sampler_num)
1378                                 DRV_LOG(WARNING,
1379                                         "No available register for sampler.");
1380                         else
1381                                 DRV_LOG(DEBUG, "DV flow is not supported!");
1382                 }
1383 #endif
1384         }
1385         /* Process parameters and store port configuration on priv structure. */
1386         err = mlx5_port_args_config(priv, mkvlist, &priv->config);
1387         if (err) {
1388                 err = rte_errno;
1389                 DRV_LOG(ERR, "Failed to process port configure: %s",
1390                         strerror(rte_errno));
1391                 goto error;
1392         }
1393         eth_dev = rte_eth_dev_allocate(name);
1394         if (eth_dev == NULL) {
1395                 DRV_LOG(ERR, "can not allocate rte ethdev");
1396                 err = ENOMEM;
1397                 goto error;
1398         }
1399         if (priv->representor) {
1400                 eth_dev->data->dev_flags |= RTE_ETH_DEV_REPRESENTOR;
1401                 eth_dev->data->representor_id = priv->representor_id;
1402                 MLX5_ETH_FOREACH_DEV(port_id, dpdk_dev) {
1403                         struct mlx5_priv *opriv =
1404                                 rte_eth_devices[port_id].data->dev_private;
1405                         if (opriv &&
1406                             opriv->master &&
1407                             opriv->domain_id == priv->domain_id &&
1408                             opriv->sh == priv->sh) {
1409                                 eth_dev->data->backer_port_id = port_id;
1410                                 break;
1411                         }
1412                 }
1413                 if (port_id >= RTE_MAX_ETHPORTS)
1414                         eth_dev->data->backer_port_id = eth_dev->data->port_id;
1415         }
1416         priv->mp_id.port_id = eth_dev->data->port_id;
1417         strlcpy(priv->mp_id.name, MLX5_MP_NAME, RTE_MP_MAX_NAME_LEN);
1418         /*
1419          * Store associated network device interface index. This index
1420          * is permanent throughout the lifetime of device. So, we may store
1421          * the ifindex here and use the cached value further.
1422          */
1423         MLX5_ASSERT(spawn->ifindex);
1424         priv->if_index = spawn->ifindex;
1425         priv->lag_affinity_idx = sh->refcnt - 1;
1426         eth_dev->data->dev_private = priv;
1427         priv->dev_data = eth_dev->data;
1428         eth_dev->data->mac_addrs = priv->mac;
1429         eth_dev->device = dpdk_dev;
1430         eth_dev->data->dev_flags |= RTE_ETH_DEV_AUTOFILL_QUEUE_XSTATS;
1431         /* Configure the first MAC address by default. */
1432         if (mlx5_get_mac(eth_dev, &mac.addr_bytes)) {
1433                 DRV_LOG(ERR,
1434                         "port %u cannot get MAC address, is mlx5_en"
1435                         " loaded? (errno: %s)",
1436                         eth_dev->data->port_id, strerror(rte_errno));
1437                 err = ENODEV;
1438                 goto error;
1439         }
1440         DRV_LOG(INFO,
1441                 "port %u MAC address is " RTE_ETHER_ADDR_PRT_FMT,
1442                 eth_dev->data->port_id, RTE_ETHER_ADDR_BYTES(&mac));
1443 #ifdef RTE_LIBRTE_MLX5_DEBUG
1444         {
1445                 char ifname[MLX5_NAMESIZE];
1446
1447                 if (mlx5_get_ifname(eth_dev, &ifname) == 0)
1448                         DRV_LOG(DEBUG, "port %u ifname is \"%s\"",
1449                                 eth_dev->data->port_id, ifname);
1450                 else
1451                         DRV_LOG(DEBUG, "port %u ifname is unknown",
1452                                 eth_dev->data->port_id);
1453         }
1454 #endif
1455         /* Get actual MTU if possible. */
1456         err = mlx5_get_mtu(eth_dev, &priv->mtu);
1457         if (err) {
1458                 err = rte_errno;
1459                 goto error;
1460         }
1461         DRV_LOG(DEBUG, "port %u MTU is %u", eth_dev->data->port_id,
1462                 priv->mtu);
1463         /* Initialize burst functions to prevent crashes before link-up. */
1464         eth_dev->rx_pkt_burst = rte_eth_pkt_burst_dummy;
1465         eth_dev->tx_pkt_burst = rte_eth_pkt_burst_dummy;
1466         eth_dev->dev_ops = &mlx5_dev_ops;
1467         eth_dev->rx_descriptor_status = mlx5_rx_descriptor_status;
1468         eth_dev->tx_descriptor_status = mlx5_tx_descriptor_status;
1469         eth_dev->rx_queue_count = mlx5_rx_queue_count;
1470         /* Register MAC address. */
1471         claim_zero(mlx5_mac_addr_add(eth_dev, &mac, 0, 0));
1472         if (sh->dev_cap.vf && sh->config.vf_nl_en)
1473                 mlx5_nl_mac_addr_sync(priv->nl_socket_route,
1474                                       mlx5_ifindex(eth_dev),
1475                                       eth_dev->data->mac_addrs,
1476                                       MLX5_MAX_MAC_ADDRESSES);
1477         priv->ctrl_flows = 0;
1478         rte_spinlock_init(&priv->flow_list_lock);
1479         TAILQ_INIT(&priv->flow_meters);
1480         priv->mtr_profile_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_PTR);
1481         if (!priv->mtr_profile_tbl)
1482                 goto error;
1483         /* Bring Ethernet device up. */
1484         DRV_LOG(DEBUG, "port %u forcing Ethernet interface up",
1485                 eth_dev->data->port_id);
1486         /* Read link status in case it is up and there will be no event. */
1487         mlx5_link_update(eth_dev, 0);
1488         /* Watch LSC interrupts between port probe and port start. */
1489         priv->sh->port[priv->dev_port - 1].nl_ih_port_id =
1490                                                         eth_dev->data->port_id;
1491         mlx5_set_link_up(eth_dev);
1492         for (i = 0; i < MLX5_FLOW_TYPE_MAXI; i++) {
1493                 icfg[i].release_mem_en = !!sh->config.reclaim_mode;
1494                 if (sh->config.reclaim_mode)
1495                         icfg[i].per_core_cache = 0;
1496                 priv->flows[i] = mlx5_ipool_create(&icfg[i]);
1497                 if (!priv->flows[i])
1498                         goto error;
1499         }
1500         /* Create context for virtual machine VLAN workaround. */
1501         priv->vmwa_context = mlx5_vlan_vmwa_init(eth_dev, spawn->ifindex);
1502         if (sh->config.dv_flow_en) {
1503                 err = mlx5_alloc_shared_dr(priv);
1504                 if (err)
1505                         goto error;
1506                 if (mlx5_flex_item_port_init(eth_dev) < 0)
1507                         goto error;
1508         }
1509         if (mlx5_devx_obj_ops_en(sh)) {
1510                 priv->obj_ops = devx_obj_ops;
1511                 mlx5_queue_counter_id_prepare(eth_dev);
1512                 priv->obj_ops.lb_dummy_queue_create =
1513                                         mlx5_rxq_ibv_obj_dummy_lb_create;
1514                 priv->obj_ops.lb_dummy_queue_release =
1515                                         mlx5_rxq_ibv_obj_dummy_lb_release;
1516         } else if (spawn->max_port > UINT8_MAX) {
1517                 /* Verbs can't support ports larger than 255 by design. */
1518                 DRV_LOG(ERR, "must enable DV and ESW when RDMA link ports > 255");
1519                 err = ENOTSUP;
1520                 goto error;
1521         } else {
1522                 priv->obj_ops = ibv_obj_ops;
1523         }
1524         if (sh->config.tx_pp &&
1525             priv->obj_ops.txq_obj_new != mlx5_txq_devx_obj_new) {
1526                 /*
1527                  * HAVE_MLX5DV_DEVX_UAR_OFFSET is required to support
1528                  * packet pacing and already checked above.
1529                  * Hence, we should only make sure the SQs will be created
1530                  * with DevX, not with Verbs.
1531                  * Verbs allocates the SQ UAR on its own and it can't be shared
1532                  * with Clock Queue UAR as required for Tx scheduling.
1533                  */
1534                 DRV_LOG(ERR, "Verbs SQs, UAR can't be shared as required for packet pacing");
1535                 err = ENODEV;
1536                 goto error;
1537         }
1538         priv->drop_queue.hrxq = mlx5_drop_action_create(eth_dev);
1539         if (!priv->drop_queue.hrxq)
1540                 goto error;
1541         priv->hrxqs = mlx5_list_create("hrxq", eth_dev, true,
1542                                        mlx5_hrxq_create_cb,
1543                                        mlx5_hrxq_match_cb,
1544                                        mlx5_hrxq_remove_cb,
1545                                        mlx5_hrxq_clone_cb,
1546                                        mlx5_hrxq_clone_free_cb);
1547         if (!priv->hrxqs)
1548                 goto error;
1549         rte_rwlock_init(&priv->ind_tbls_lock);
1550         if (priv->sh->config.dv_flow_en == 2)
1551                 return eth_dev;
1552         /* Port representor shares the same max priority with pf port. */
1553         if (!priv->sh->flow_priority_check_flag) {
1554                 /* Supported Verbs flow priority number detection. */
1555                 err = mlx5_flow_discover_priorities(eth_dev);
1556                 priv->sh->flow_max_priority = err;
1557                 priv->sh->flow_priority_check_flag = 1;
1558         } else {
1559                 err = priv->sh->flow_max_priority;
1560         }
1561         if (err < 0) {
1562                 err = -err;
1563                 goto error;
1564         }
1565         mlx5_set_metadata_mask(eth_dev);
1566         if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1567             !priv->sh->dv_regc0_mask) {
1568                 DRV_LOG(ERR, "metadata mode %u is not supported "
1569                              "(no metadata reg_c[0] is available)",
1570                              sh->config.dv_xmeta_en);
1571                         err = ENOTSUP;
1572                         goto error;
1573         }
1574         /* Query availability of metadata reg_c's. */
1575         if (!priv->sh->metadata_regc_check_flag) {
1576                 err = mlx5_flow_discover_mreg_c(eth_dev);
1577                 if (err < 0) {
1578                         err = -err;
1579                         goto error;
1580                 }
1581         }
1582         if (!mlx5_flow_ext_mreg_supported(eth_dev)) {
1583                 DRV_LOG(DEBUG,
1584                         "port %u extensive metadata register is not supported",
1585                         eth_dev->data->port_id);
1586                 if (sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY) {
1587                         DRV_LOG(ERR, "metadata mode %u is not supported "
1588                                      "(no metadata registers available)",
1589                                      sh->config.dv_xmeta_en);
1590                         err = ENOTSUP;
1591                         goto error;
1592                 }
1593         }
1594         if (sh->config.dv_flow_en &&
1595             sh->config.dv_xmeta_en != MLX5_XMETA_MODE_LEGACY &&
1596             mlx5_flow_ext_mreg_supported(eth_dev) &&
1597             priv->sh->dv_regc0_mask) {
1598                 priv->mreg_cp_tbl = mlx5_hlist_create(MLX5_FLOW_MREG_HNAME,
1599                                                       MLX5_FLOW_MREG_HTABLE_SZ,
1600                                                       false, true, eth_dev,
1601                                                       flow_dv_mreg_create_cb,
1602                                                       flow_dv_mreg_match_cb,
1603                                                       flow_dv_mreg_remove_cb,
1604                                                       flow_dv_mreg_clone_cb,
1605                                                     flow_dv_mreg_clone_free_cb);
1606                 if (!priv->mreg_cp_tbl) {
1607                         err = ENOMEM;
1608                         goto error;
1609                 }
1610         }
1611         rte_spinlock_init(&priv->shared_act_sl);
1612         mlx5_flow_counter_mode_config(eth_dev);
1613         mlx5_flow_drop_action_config(eth_dev);
1614         if (sh->config.dv_flow_en)
1615                 eth_dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
1616         return eth_dev;
1617 error:
1618         if (priv) {
1619                 if (priv->mreg_cp_tbl)
1620                         mlx5_hlist_destroy(priv->mreg_cp_tbl);
1621                 if (priv->sh)
1622                         mlx5_os_free_shared_dr(priv);
1623                 if (priv->nl_socket_route >= 0)
1624                         close(priv->nl_socket_route);
1625                 if (priv->vmwa_context)
1626                         mlx5_vlan_vmwa_exit(priv->vmwa_context);
1627                 if (eth_dev && priv->drop_queue.hrxq)
1628                         mlx5_drop_action_destroy(eth_dev);
1629                 if (priv->mtr_profile_tbl)
1630                         mlx5_l3t_destroy(priv->mtr_profile_tbl);
1631                 if (own_domain_id)
1632                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1633                 if (priv->hrxqs)
1634                         mlx5_list_destroy(priv->hrxqs);
1635                 if (eth_dev && priv->flex_item_map)
1636                         mlx5_flex_item_port_cleanup(eth_dev);
1637                 mlx5_free(priv->ext_rxqs);
1638                 mlx5_free(priv);
1639                 if (eth_dev != NULL)
1640                         eth_dev->data->dev_private = NULL;
1641         }
1642         if (eth_dev != NULL) {
1643                 /* mac_addrs must not be freed alone because part of
1644                  * dev_private
1645                  **/
1646                 eth_dev->data->mac_addrs = NULL;
1647                 rte_eth_dev_release_port(eth_dev);
1648         }
1649         if (sh)
1650                 mlx5_free_shared_dev_ctx(sh);
1651         if (nl_rdma >= 0)
1652                 close(nl_rdma);
1653         MLX5_ASSERT(err > 0);
1654         rte_errno = err;
1655         return NULL;
1656 }
1657
1658 /**
1659  * Comparison callback to sort device data.
1660  *
1661  * This is meant to be used with qsort().
1662  *
1663  * @param a[in]
1664  *   Pointer to pointer to first data object.
1665  * @param b[in]
1666  *   Pointer to pointer to second data object.
1667  *
1668  * @return
1669  *   0 if both objects are equal, less than 0 if the first argument is less
1670  *   than the second, greater than 0 otherwise.
1671  */
1672 static int
1673 mlx5_dev_spawn_data_cmp(const void *a, const void *b)
1674 {
1675         const struct mlx5_switch_info *si_a =
1676                 &((const struct mlx5_dev_spawn_data *)a)->info;
1677         const struct mlx5_switch_info *si_b =
1678                 &((const struct mlx5_dev_spawn_data *)b)->info;
1679         int ret;
1680
1681         /* Master device first. */
1682         ret = si_b->master - si_a->master;
1683         if (ret)
1684                 return ret;
1685         /* Then representor devices. */
1686         ret = si_b->representor - si_a->representor;
1687         if (ret)
1688                 return ret;
1689         /* Unidentified devices come last in no specific order. */
1690         if (!si_a->representor)
1691                 return 0;
1692         /* Order representors by name. */
1693         return si_a->port_name - si_b->port_name;
1694 }
1695
1696 /**
1697  * Match PCI information for possible slaves of bonding device.
1698  *
1699  * @param[in] ibdev_name
1700  *   Name of Infiniband device.
1701  * @param[in] pci_dev
1702  *   Pointer to primary PCI address structure to match.
1703  * @param[in] nl_rdma
1704  *   Netlink RDMA group socket handle.
1705  * @param[in] owner
1706  *   Representor owner PF index.
1707  * @param[out] bond_info
1708  *   Pointer to bonding information.
1709  *
1710  * @return
1711  *   negative value if no bonding device found, otherwise
1712  *   positive index of slave PF in bonding.
1713  */
1714 static int
1715 mlx5_device_bond_pci_match(const char *ibdev_name,
1716                            const struct rte_pci_addr *pci_dev,
1717                            int nl_rdma, uint16_t owner,
1718                            struct mlx5_bond_info *bond_info)
1719 {
1720         char ifname[IF_NAMESIZE + 1];
1721         unsigned int ifindex;
1722         unsigned int np, i;
1723         FILE *bond_file = NULL, *file;
1724         int pf = -1;
1725         int ret;
1726         uint8_t cur_guid[32] = {0};
1727         uint8_t guid[32] = {0};
1728
1729         /*
1730          * Try to get master device name. If something goes wrong suppose
1731          * the lack of kernel support and no bonding devices.
1732          */
1733         memset(bond_info, 0, sizeof(*bond_info));
1734         if (nl_rdma < 0)
1735                 return -1;
1736         if (!strstr(ibdev_name, "bond"))
1737                 return -1;
1738         np = mlx5_nl_portnum(nl_rdma, ibdev_name);
1739         if (!np)
1740                 return -1;
1741         if (mlx5_get_device_guid(pci_dev, cur_guid, sizeof(cur_guid)) < 0)
1742                 return -1;
1743         /*
1744          * The master device might not be on the predefined port(not on port
1745          * index 1, it is not guaranteed), we have to scan all Infiniband
1746          * device ports and find master.
1747          */
1748         for (i = 1; i <= np; ++i) {
1749                 /* Check whether Infiniband port is populated. */
1750                 ifindex = mlx5_nl_ifindex(nl_rdma, ibdev_name, i);
1751                 if (!ifindex)
1752                         continue;
1753                 if (!if_indextoname(ifindex, ifname))
1754                         continue;
1755                 /* Try to read bonding slave names from sysfs. */
1756                 MKSTR(slaves,
1757                       "/sys/class/net/%s/master/bonding/slaves", ifname);
1758                 bond_file = fopen(slaves, "r");
1759                 if (bond_file)
1760                         break;
1761         }
1762         if (!bond_file)
1763                 return -1;
1764         /* Use safe format to check maximal buffer length. */
1765         MLX5_ASSERT(atol(RTE_STR(IF_NAMESIZE)) == IF_NAMESIZE);
1766         while (fscanf(bond_file, "%" RTE_STR(IF_NAMESIZE) "s", ifname) == 1) {
1767                 char tmp_str[IF_NAMESIZE + 32];
1768                 struct rte_pci_addr pci_addr;
1769                 struct mlx5_switch_info info;
1770                 int ret;
1771
1772                 /* Process slave interface names in the loop. */
1773                 snprintf(tmp_str, sizeof(tmp_str),
1774                          "/sys/class/net/%s", ifname);
1775                 if (mlx5_get_pci_addr(tmp_str, &pci_addr)) {
1776                         DRV_LOG(WARNING,
1777                                 "Cannot get PCI address for netdev \"%s\".",
1778                                 ifname);
1779                         continue;
1780                 }
1781                 /* Slave interface PCI address match found. */
1782                 snprintf(tmp_str, sizeof(tmp_str),
1783                          "/sys/class/net/%s/phys_port_name", ifname);
1784                 file = fopen(tmp_str, "rb");
1785                 if (!file)
1786                         break;
1787                 info.name_type = MLX5_PHYS_PORT_NAME_TYPE_NOTSET;
1788                 if (fscanf(file, "%32s", tmp_str) == 1)
1789                         mlx5_translate_port_name(tmp_str, &info);
1790                 fclose(file);
1791                 /* Only process PF ports. */
1792                 if (info.name_type != MLX5_PHYS_PORT_NAME_TYPE_LEGACY &&
1793                     info.name_type != MLX5_PHYS_PORT_NAME_TYPE_UPLINK)
1794                         continue;
1795                 /* Check max bonding member. */
1796                 if (info.port_name >= MLX5_BOND_MAX_PORTS) {
1797                         DRV_LOG(WARNING, "bonding index out of range, "
1798                                 "please increase MLX5_BOND_MAX_PORTS: %s",
1799                                 tmp_str);
1800                         break;
1801                 }
1802                 /* Get ifindex. */
1803                 snprintf(tmp_str, sizeof(tmp_str),
1804                          "/sys/class/net/%s/ifindex", ifname);
1805                 file = fopen(tmp_str, "rb");
1806                 if (!file)
1807                         break;
1808                 ret = fscanf(file, "%u", &ifindex);
1809                 fclose(file);
1810                 if (ret != 1)
1811                         break;
1812                 /* Save bonding info. */
1813                 strncpy(bond_info->ports[info.port_name].ifname, ifname,
1814                         sizeof(bond_info->ports[0].ifname));
1815                 bond_info->ports[info.port_name].pci_addr = pci_addr;
1816                 bond_info->ports[info.port_name].ifindex = ifindex;
1817                 bond_info->n_port++;
1818                 /*
1819                  * Under socket direct mode, bonding will use
1820                  * system_image_guid as identification.
1821                  * After OFED 5.4, guid is readable (ret >= 0) under sysfs.
1822                  * All bonding members should have the same guid even if driver
1823                  * is using PCIe BDF.
1824                  */
1825                 ret = mlx5_get_device_guid(&pci_addr, guid, sizeof(guid));
1826                 if (ret < 0)
1827                         break;
1828                 else if (ret > 0) {
1829                         if (!memcmp(guid, cur_guid, sizeof(guid)) &&
1830                             owner == info.port_name &&
1831                             (owner != 0 || (owner == 0 &&
1832                             !rte_pci_addr_cmp(pci_dev, &pci_addr))))
1833                                 pf = info.port_name;
1834                 } else if (pci_dev->domain == pci_addr.domain &&
1835                     pci_dev->bus == pci_addr.bus &&
1836                     pci_dev->devid == pci_addr.devid &&
1837                     ((pci_dev->function == 0 &&
1838                       pci_dev->function + owner == pci_addr.function) ||
1839                      (pci_dev->function == owner &&
1840                       pci_addr.function == owner)))
1841                         pf = info.port_name;
1842         }
1843         if (pf >= 0) {
1844                 /* Get bond interface info */
1845                 ret = mlx5_sysfs_bond_info(ifindex, &bond_info->ifindex,
1846                                            bond_info->ifname);
1847                 if (ret)
1848                         DRV_LOG(ERR, "unable to get bond info: %s",
1849                                 strerror(rte_errno));
1850                 else
1851                         DRV_LOG(INFO, "PF device %u, bond device %u(%s)",
1852                                 ifindex, bond_info->ifindex, bond_info->ifname);
1853         }
1854         if (owner == 0 && pf != 0) {
1855                 DRV_LOG(INFO, "PCIe instance %04x:%02x:%02x.%x isn't bonding owner",
1856                                 pci_dev->domain, pci_dev->bus, pci_dev->devid,
1857                                 pci_dev->function);
1858         }
1859         return pf;
1860 }
1861
1862 /**
1863  * Register a PCI device within bonding.
1864  *
1865  * This function spawns Ethernet devices out of a given PCI device and
1866  * bonding owner PF index.
1867  *
1868  * @param[in] cdev
1869  *   Pointer to common mlx5 device structure.
1870  * @param[in] req_eth_da
1871  *   Requested ethdev device argument.
1872  * @param[in] owner_id
1873  *   Requested owner PF port ID within bonding device, default to 0.
1874  * @param[in, out] mkvlist
1875  *   Pointer to mlx5 kvargs control, can be NULL if there is no devargs.
1876  *
1877  * @return
1878  *   0 on success, a negative errno value otherwise and rte_errno is set.
1879  */
1880 static int
1881 mlx5_os_pci_probe_pf(struct mlx5_common_device *cdev,
1882                      struct rte_eth_devargs *req_eth_da,
1883                      uint16_t owner_id, struct mlx5_kvargs_ctrl *mkvlist)
1884 {
1885         struct ibv_device **ibv_list;
1886         /*
1887          * Number of found IB Devices matching with requested PCI BDF.
1888          * nd != 1 means there are multiple IB devices over the same
1889          * PCI device and we have representors and master.
1890          */
1891         unsigned int nd = 0;
1892         /*
1893          * Number of found IB device Ports. nd = 1 and np = 1..n means
1894          * we have the single multiport IB device, and there may be
1895          * representors attached to some of found ports.
1896          */
1897         unsigned int np = 0;
1898         /*
1899          * Number of DPDK ethernet devices to Spawn - either over
1900          * multiple IB devices or multiple ports of single IB device.
1901          * Actually this is the number of iterations to spawn.
1902          */
1903         unsigned int ns = 0;
1904         /*
1905          * Bonding device
1906          *   < 0 - no bonding device (single one)
1907          *  >= 0 - bonding device (value is slave PF index)
1908          */
1909         int bd = -1;
1910         struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(cdev->dev);
1911         struct mlx5_dev_spawn_data *list = NULL;
1912         struct rte_eth_devargs eth_da = *req_eth_da;
1913         struct rte_pci_addr owner_pci = pci_dev->addr; /* Owner PF. */
1914         struct mlx5_bond_info bond_info;
1915         int ret = -1;
1916
1917         errno = 0;
1918         ibv_list = mlx5_glue->get_device_list(&ret);
1919         if (!ibv_list) {
1920                 rte_errno = errno ? errno : ENOSYS;
1921                 DRV_LOG(ERR, "Cannot list devices, is ib_uverbs loaded?");
1922                 return -rte_errno;
1923         }
1924         /*
1925          * First scan the list of all Infiniband devices to find
1926          * matching ones, gathering into the list.
1927          */
1928         struct ibv_device *ibv_match[ret + 1];
1929         int nl_route = mlx5_nl_init(NETLINK_ROUTE, 0);
1930         int nl_rdma = mlx5_nl_init(NETLINK_RDMA, 0);
1931         unsigned int i;
1932
1933         while (ret-- > 0) {
1934                 struct rte_pci_addr pci_addr;
1935
1936                 DRV_LOG(DEBUG, "Checking device \"%s\"", ibv_list[ret]->name);
1937                 bd = mlx5_device_bond_pci_match(ibv_list[ret]->name, &owner_pci,
1938                                                 nl_rdma, owner_id, &bond_info);
1939                 if (bd >= 0) {
1940                         /*
1941                          * Bonding device detected. Only one match is allowed,
1942                          * the bonding is supported over multi-port IB device,
1943                          * there should be no matches on representor PCI
1944                          * functions or non VF LAG bonding devices with
1945                          * specified address.
1946                          */
1947                         if (nd) {
1948                                 DRV_LOG(ERR,
1949                                         "multiple PCI match on bonding device"
1950                                         "\"%s\" found", ibv_list[ret]->name);
1951                                 rte_errno = ENOENT;
1952                                 ret = -rte_errno;
1953                                 goto exit;
1954                         }
1955                         /* Amend owner pci address if owner PF ID specified. */
1956                         if (eth_da.nb_representor_ports)
1957                                 owner_pci.function += owner_id;
1958                         DRV_LOG(INFO,
1959                                 "PCI information matches for slave %d bonding device \"%s\"",
1960                                 bd, ibv_list[ret]->name);
1961                         ibv_match[nd++] = ibv_list[ret];
1962                         break;
1963                 } else {
1964                         /* Bonding device not found. */
1965                         if (mlx5_get_pci_addr(ibv_list[ret]->ibdev_path,
1966                                               &pci_addr))
1967                                 continue;
1968                         if (owner_pci.domain != pci_addr.domain ||
1969                             owner_pci.bus != pci_addr.bus ||
1970                             owner_pci.devid != pci_addr.devid ||
1971                             owner_pci.function != pci_addr.function)
1972                                 continue;
1973                         DRV_LOG(INFO, "PCI information matches for device \"%s\"",
1974                                 ibv_list[ret]->name);
1975                         ibv_match[nd++] = ibv_list[ret];
1976                 }
1977         }
1978         ibv_match[nd] = NULL;
1979         if (!nd) {
1980                 /* No device matches, just complain and bail out. */
1981                 DRV_LOG(WARNING,
1982                         "PF %u doesn't have Verbs device matches PCI device " PCI_PRI_FMT ","
1983                         " are kernel drivers loaded?",
1984                         owner_id, owner_pci.domain, owner_pci.bus,
1985                         owner_pci.devid, owner_pci.function);
1986                 rte_errno = ENOENT;
1987                 ret = -rte_errno;
1988                 goto exit;
1989         }
1990         if (nd == 1) {
1991                 /*
1992                  * Found single matching device may have multiple ports.
1993                  * Each port may be representor, we have to check the port
1994                  * number and check the representors existence.
1995                  */
1996                 if (nl_rdma >= 0)
1997                         np = mlx5_nl_portnum(nl_rdma, ibv_match[0]->name);
1998                 if (!np)
1999                         DRV_LOG(WARNING,
2000                                 "Cannot get IB device \"%s\" ports number.",
2001                                 ibv_match[0]->name);
2002                 if (bd >= 0 && !np) {
2003                         DRV_LOG(ERR, "Cannot get ports for bonding device.");
2004                         rte_errno = ENOENT;
2005                         ret = -rte_errno;
2006                         goto exit;
2007                 }
2008         }
2009         /* Now we can determine the maximal amount of devices to be spawned. */
2010         list = mlx5_malloc(MLX5_MEM_ZERO,
2011                            sizeof(struct mlx5_dev_spawn_data) * (np ? np : nd),
2012                            RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
2013         if (!list) {
2014                 DRV_LOG(ERR, "Spawn data array allocation failure.");
2015                 rte_errno = ENOMEM;
2016                 ret = -rte_errno;
2017                 goto exit;
2018         }
2019         if (bd >= 0 || np > 1) {
2020                 /*
2021                  * Single IB device with multiple ports found,
2022                  * it may be E-Switch master device and representors.
2023                  * We have to perform identification through the ports.
2024                  */
2025                 MLX5_ASSERT(nl_rdma >= 0);
2026                 MLX5_ASSERT(ns == 0);
2027                 MLX5_ASSERT(nd == 1);
2028                 MLX5_ASSERT(np);
2029                 for (i = 1; i <= np; ++i) {
2030                         list[ns].bond_info = &bond_info;
2031                         list[ns].max_port = np;
2032                         list[ns].phys_port = i;
2033                         list[ns].phys_dev_name = ibv_match[0]->name;
2034                         list[ns].eth_dev = NULL;
2035                         list[ns].pci_dev = pci_dev;
2036                         list[ns].cdev = cdev;
2037                         list[ns].pf_bond = bd;
2038                         list[ns].ifindex = mlx5_nl_ifindex(nl_rdma,
2039                                                            ibv_match[0]->name,
2040                                                            i);
2041                         if (!list[ns].ifindex) {
2042                                 /*
2043                                  * No network interface index found for the
2044                                  * specified port, it means there is no
2045                                  * representor on this port. It's OK,
2046                                  * there can be disabled ports, for example
2047                                  * if sriov_numvfs < sriov_totalvfs.
2048                                  */
2049                                 continue;
2050                         }
2051                         ret = -1;
2052                         if (nl_route >= 0)
2053                                 ret = mlx5_nl_switch_info(nl_route,
2054                                                           list[ns].ifindex,
2055                                                           &list[ns].info);
2056                         if (ret || (!list[ns].info.representor &&
2057                                     !list[ns].info.master)) {
2058                                 /*
2059                                  * We failed to recognize representors with
2060                                  * Netlink, let's try to perform the task
2061                                  * with sysfs.
2062                                  */
2063                                 ret = mlx5_sysfs_switch_info(list[ns].ifindex,
2064                                                              &list[ns].info);
2065                         }
2066                         if (!ret && bd >= 0) {
2067                                 switch (list[ns].info.name_type) {
2068                                 case MLX5_PHYS_PORT_NAME_TYPE_UPLINK:
2069                                         if (np == 1) {
2070                                                 /*
2071                                                  * Force standalone bonding
2072                                                  * device for ROCE LAG
2073                                                  * configurations.
2074                                                  */
2075                                                 list[ns].info.master = 0;
2076                                                 list[ns].info.representor = 0;
2077                                         }
2078                                         if (list[ns].info.port_name == bd)
2079                                                 ns++;
2080                                         break;
2081                                 case MLX5_PHYS_PORT_NAME_TYPE_PFHPF:
2082                                         /* Fallthrough */
2083                                 case MLX5_PHYS_PORT_NAME_TYPE_PFVF:
2084                                         /* Fallthrough */
2085                                 case MLX5_PHYS_PORT_NAME_TYPE_PFSF:
2086                                         if (list[ns].info.pf_num == bd)
2087                                                 ns++;
2088                                         break;
2089                                 default:
2090                                         break;
2091                                 }
2092                                 continue;
2093                         }
2094                         if (!ret && (list[ns].info.representor ^
2095                                      list[ns].info.master))
2096                                 ns++;
2097                 }
2098                 if (!ns) {
2099                         DRV_LOG(ERR,
2100                                 "Unable to recognize master/representors on the IB device with multiple ports.");
2101                         rte_errno = ENOENT;
2102                         ret = -rte_errno;
2103                         goto exit;
2104                 }
2105         } else {
2106                 /*
2107                  * The existence of several matching entries (nd > 1) means
2108                  * port representors have been instantiated. No existing Verbs
2109                  * call nor sysfs entries can tell them apart, this can only
2110                  * be done through Netlink calls assuming kernel drivers are
2111                  * recent enough to support them.
2112                  *
2113                  * In the event of identification failure through Netlink,
2114                  * try again through sysfs, then:
2115                  *
2116                  * 1. A single IB device matches (nd == 1) with single
2117                  *    port (np=0/1) and is not a representor, assume
2118                  *    no switch support.
2119                  *
2120                  * 2. Otherwise no safe assumptions can be made;
2121                  *    complain louder and bail out.
2122                  */
2123                 for (i = 0; i != nd; ++i) {
2124                         memset(&list[ns].info, 0, sizeof(list[ns].info));
2125                         list[ns].bond_info = NULL;
2126                         list[ns].max_port = 1;
2127                         list[ns].phys_port = 1;
2128                         list[ns].phys_dev_name = ibv_match[i]->name;
2129                         list[ns].eth_dev = NULL;
2130                         list[ns].pci_dev = pci_dev;
2131                         list[ns].cdev = cdev;
2132                         list[ns].pf_bond = -1;
2133                         list[ns].ifindex = 0;
2134                         if (nl_rdma >= 0)
2135                                 list[ns].ifindex = mlx5_nl_ifindex
2136                                                             (nl_rdma,
2137                                                              ibv_match[i]->name,
2138                                                              1);
2139                         if (!list[ns].ifindex) {
2140                                 char ifname[IF_NAMESIZE];
2141
2142                                 /*
2143                                  * Netlink failed, it may happen with old
2144                                  * ib_core kernel driver (before 4.16).
2145                                  * We can assume there is old driver because
2146                                  * here we are processing single ports IB
2147                                  * devices. Let's try sysfs to retrieve
2148                                  * the ifindex. The method works for
2149                                  * master device only.
2150                                  */
2151                                 if (nd > 1) {
2152                                         /*
2153                                          * Multiple devices found, assume
2154                                          * representors, can not distinguish
2155                                          * master/representor and retrieve
2156                                          * ifindex via sysfs.
2157                                          */
2158                                         continue;
2159                                 }
2160                                 ret = mlx5_get_ifname_sysfs
2161                                         (ibv_match[i]->ibdev_path, ifname);
2162                                 if (!ret)
2163                                         list[ns].ifindex =
2164                                                 if_nametoindex(ifname);
2165                                 if (!list[ns].ifindex) {
2166                                         /*
2167                                          * No network interface index found
2168                                          * for the specified device, it means
2169                                          * there it is neither representor
2170                                          * nor master.
2171                                          */
2172                                         continue;
2173                                 }
2174                         }
2175                         ret = -1;
2176                         if (nl_route >= 0)
2177                                 ret = mlx5_nl_switch_info(nl_route,
2178                                                           list[ns].ifindex,
2179                                                           &list[ns].info);
2180                         if (ret || (!list[ns].info.representor &&
2181                                     !list[ns].info.master)) {
2182                                 /*
2183                                  * We failed to recognize representors with
2184                                  * Netlink, let's try to perform the task
2185                                  * with sysfs.
2186                                  */
2187                                 ret = mlx5_sysfs_switch_info(list[ns].ifindex,
2188                                                              &list[ns].info);
2189                         }
2190                         if (!ret && (list[ns].info.representor ^
2191                                      list[ns].info.master)) {
2192                                 ns++;
2193                         } else if ((nd == 1) &&
2194                                    !list[ns].info.representor &&
2195                                    !list[ns].info.master) {
2196                                 /*
2197                                  * Single IB device with one physical port and
2198                                  * attached network device.
2199                                  * May be SRIOV is not enabled or there is no
2200                                  * representors.
2201                                  */
2202                                 DRV_LOG(INFO, "No E-Switch support detected.");
2203                                 ns++;
2204                                 break;
2205                         }
2206                 }
2207                 if (!ns) {
2208                         DRV_LOG(ERR,
2209                                 "Unable to recognize master/representors on the multiple IB devices.");
2210                         rte_errno = ENOENT;
2211                         ret = -rte_errno;
2212                         goto exit;
2213                 }
2214                 /*
2215                  * New kernels may add the switch_id attribute for the case
2216                  * there is no E-Switch and we wrongly recognized the only
2217                  * device as master. Override this if there is the single
2218                  * device with single port and new device name format present.
2219                  */
2220                 if (nd == 1 &&
2221                     list[0].info.name_type == MLX5_PHYS_PORT_NAME_TYPE_UPLINK) {
2222                         list[0].info.master = 0;
2223                         list[0].info.representor = 0;
2224                 }
2225         }
2226         MLX5_ASSERT(ns);
2227         /*
2228          * Sort list to probe devices in natural order for users convenience
2229          * (i.e. master first, then representors from lowest to highest ID).
2230          */
2231         qsort(list, ns, sizeof(*list), mlx5_dev_spawn_data_cmp);
2232         if (eth_da.type != RTE_ETH_REPRESENTOR_NONE) {
2233                 /* Set devargs default values. */
2234                 if (eth_da.nb_mh_controllers == 0) {
2235                         eth_da.nb_mh_controllers = 1;
2236                         eth_da.mh_controllers[0] = 0;
2237                 }
2238                 if (eth_da.nb_ports == 0 && ns > 0) {
2239                         if (list[0].pf_bond >= 0 && list[0].info.representor)
2240                                 DRV_LOG(WARNING, "Representor on Bonding device should use pf#vf# syntax: %s",
2241                                         pci_dev->device.devargs->args);
2242                         eth_da.nb_ports = 1;
2243                         eth_da.ports[0] = list[0].info.pf_num;
2244                 }
2245                 if (eth_da.nb_representor_ports == 0) {
2246                         eth_da.nb_representor_ports = 1;
2247                         eth_da.representor_ports[0] = 0;
2248                 }
2249         }
2250         for (i = 0; i != ns; ++i) {
2251                 uint32_t restore;
2252
2253                 list[i].eth_dev = mlx5_dev_spawn(cdev->dev, &list[i], &eth_da,
2254                                                  mkvlist);
2255                 if (!list[i].eth_dev) {
2256                         if (rte_errno != EBUSY && rte_errno != EEXIST)
2257                                 break;
2258                         /* Device is disabled or already spawned. Ignore it. */
2259                         continue;
2260                 }
2261                 restore = list[i].eth_dev->data->dev_flags;
2262                 rte_eth_copy_pci_info(list[i].eth_dev, pci_dev);
2263                 /**
2264                  * Each representor has a dedicated interrupts vector.
2265                  * rte_eth_copy_pci_info() assigns PF interrupts handle to
2266                  * representor eth_dev object because representor and PF
2267                  * share the same PCI address.
2268                  * Override representor device with a dedicated
2269                  * interrupts handle here.
2270                  * Representor interrupts handle is released in mlx5_dev_stop().
2271                  */
2272                 if (list[i].info.representor) {
2273                         struct rte_intr_handle *intr_handle =
2274                                 rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_SHARED);
2275                         if (intr_handle == NULL) {
2276                                 DRV_LOG(ERR,
2277                                         "port %u failed to allocate memory for interrupt handler "
2278                                         "Rx interrupts will not be supported",
2279                                         i);
2280                                 rte_errno = ENOMEM;
2281                                 ret = -rte_errno;
2282                                 goto exit;
2283                         }
2284                         list[i].eth_dev->intr_handle = intr_handle;
2285                 }
2286                 /* Restore non-PCI flags cleared by the above call. */
2287                 list[i].eth_dev->data->dev_flags |= restore;
2288                 rte_eth_dev_probing_finish(list[i].eth_dev);
2289         }
2290         if (i != ns) {
2291                 DRV_LOG(ERR,
2292                         "probe of PCI device " PCI_PRI_FMT " aborted after"
2293                         " encountering an error: %s",
2294                         owner_pci.domain, owner_pci.bus,
2295                         owner_pci.devid, owner_pci.function,
2296                         strerror(rte_errno));
2297                 ret = -rte_errno;
2298                 /* Roll back. */
2299                 while (i--) {
2300                         if (!list[i].eth_dev)
2301                                 continue;
2302                         mlx5_dev_close(list[i].eth_dev);
2303                         /* mac_addrs must not be freed because in dev_private */
2304                         list[i].eth_dev->data->mac_addrs = NULL;
2305                         claim_zero(rte_eth_dev_release_port(list[i].eth_dev));
2306                 }
2307                 /* Restore original error. */
2308                 rte_errno = -ret;
2309         } else {
2310                 ret = 0;
2311         }
2312 exit:
2313         /*
2314          * Do the routine cleanup:
2315          * - close opened Netlink sockets
2316          * - free allocated spawn data array
2317          * - free the Infiniband device list
2318          */
2319         if (nl_rdma >= 0)
2320                 close(nl_rdma);
2321         if (nl_route >= 0)
2322                 close(nl_route);
2323         if (list)
2324                 mlx5_free(list);
2325         MLX5_ASSERT(ibv_list);
2326         mlx5_glue->free_device_list(ibv_list);
2327         return ret;
2328 }
2329
2330 static int
2331 mlx5_os_parse_eth_devargs(struct rte_device *dev,
2332                           struct rte_eth_devargs *eth_da)
2333 {
2334         int ret = 0;
2335
2336         if (dev->devargs == NULL)
2337                 return 0;
2338         memset(eth_da, 0, sizeof(*eth_da));
2339         /* Parse representor information first from class argument. */
2340         if (dev->devargs->cls_str)
2341                 ret = rte_eth_devargs_parse(dev->devargs->cls_str, eth_da);
2342         if (ret != 0) {
2343                 DRV_LOG(ERR, "failed to parse device arguments: %s",
2344                         dev->devargs->cls_str);
2345                 return -rte_errno;
2346         }
2347         if (eth_da->type == RTE_ETH_REPRESENTOR_NONE) {
2348                 /* Parse legacy device argument */
2349                 ret = rte_eth_devargs_parse(dev->devargs->args, eth_da);
2350                 if (ret) {
2351                         DRV_LOG(ERR, "failed to parse device arguments: %s",
2352                                 dev->devargs->args);
2353                         return -rte_errno;
2354                 }
2355         }
2356         return 0;
2357 }
2358
2359 /**
2360  * Callback to register a PCI device.
2361  *
2362  * This function spawns Ethernet devices out of a given PCI device.
2363  *
2364  * @param[in] cdev
2365  *   Pointer to common mlx5 device structure.
2366  * @param[in, out] mkvlist
2367  *   Pointer to mlx5 kvargs control, can be NULL if there is no devargs.
2368  *
2369  * @return
2370  *   0 on success, a negative errno value otherwise and rte_errno is set.
2371  */
2372 static int
2373 mlx5_os_pci_probe(struct mlx5_common_device *cdev,
2374                   struct mlx5_kvargs_ctrl *mkvlist)
2375 {
2376         struct rte_pci_device *pci_dev = RTE_DEV_TO_PCI(cdev->dev);
2377         struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2378         int ret = 0;
2379         uint16_t p;
2380
2381         ret = mlx5_os_parse_eth_devargs(cdev->dev, &eth_da);
2382         if (ret != 0)
2383                 return ret;
2384
2385         if (eth_da.nb_ports > 0) {
2386                 /* Iterate all port if devargs pf is range: "pf[0-1]vf[...]". */
2387                 for (p = 0; p < eth_da.nb_ports; p++) {
2388                         ret = mlx5_os_pci_probe_pf(cdev, &eth_da,
2389                                                    eth_da.ports[p], mkvlist);
2390                         if (ret) {
2391                                 DRV_LOG(INFO, "Probe of PCI device " PCI_PRI_FMT " "
2392                                         "aborted due to proding failure of PF %u",
2393                                         pci_dev->addr.domain, pci_dev->addr.bus,
2394                                         pci_dev->addr.devid, pci_dev->addr.function,
2395                                         eth_da.ports[p]);
2396                                 mlx5_net_remove(cdev);
2397                                 if (p != 0)
2398                                         break;
2399                         }
2400                 }
2401         } else {
2402                 ret = mlx5_os_pci_probe_pf(cdev, &eth_da, 0, mkvlist);
2403         }
2404         return ret;
2405 }
2406
2407 /* Probe a single SF device on auxiliary bus, no representor support. */
2408 static int
2409 mlx5_os_auxiliary_probe(struct mlx5_common_device *cdev,
2410                         struct mlx5_kvargs_ctrl *mkvlist)
2411 {
2412         struct rte_eth_devargs eth_da = { .nb_ports = 0 };
2413         struct mlx5_dev_spawn_data spawn = { .pf_bond = -1 };
2414         struct rte_device *dev = cdev->dev;
2415         struct rte_auxiliary_device *adev = RTE_DEV_TO_AUXILIARY(dev);
2416         struct rte_eth_dev *eth_dev;
2417         int ret = 0;
2418
2419         /* Parse ethdev devargs. */
2420         ret = mlx5_os_parse_eth_devargs(dev, &eth_da);
2421         if (ret != 0)
2422                 return ret;
2423         /* Init spawn data. */
2424         spawn.max_port = 1;
2425         spawn.phys_port = 1;
2426         spawn.phys_dev_name = mlx5_os_get_ctx_device_name(cdev->ctx);
2427         ret = mlx5_auxiliary_get_ifindex(dev->name);
2428         if (ret < 0) {
2429                 DRV_LOG(ERR, "failed to get ethdev ifindex: %s", dev->name);
2430                 return ret;
2431         }
2432         spawn.ifindex = ret;
2433         spawn.cdev = cdev;
2434         /* Spawn device. */
2435         eth_dev = mlx5_dev_spawn(dev, &spawn, &eth_da, mkvlist);
2436         if (eth_dev == NULL)
2437                 return -rte_errno;
2438         /* Post create. */
2439         eth_dev->intr_handle = adev->intr_handle;
2440         if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
2441                 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_LSC;
2442                 eth_dev->data->dev_flags |= RTE_ETH_DEV_INTR_RMV;
2443                 eth_dev->data->numa_node = dev->numa_node;
2444         }
2445         rte_eth_dev_probing_finish(eth_dev);
2446         return 0;
2447 }
2448
2449 /**
2450  * Net class driver callback to probe a device.
2451  *
2452  * This function probe PCI bus device(s) or a single SF on auxiliary bus.
2453  *
2454  * @param[in] cdev
2455  *   Pointer to the common mlx5 device.
2456  * @param[in, out] mkvlist
2457  *   Pointer to mlx5 kvargs control, can be NULL if there is no devargs.
2458  *
2459  * @return
2460  *   0 on success, a negative errno value otherwise and rte_errno is set.
2461  */
2462 int
2463 mlx5_os_net_probe(struct mlx5_common_device *cdev,
2464                   struct mlx5_kvargs_ctrl *mkvlist)
2465 {
2466         int ret;
2467
2468         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
2469                 mlx5_pmd_socket_init();
2470         ret = mlx5_init_once();
2471         if (ret) {
2472                 DRV_LOG(ERR, "Unable to init PMD global data: %s",
2473                         strerror(rte_errno));
2474                 return -rte_errno;
2475         }
2476         ret = mlx5_probe_again_args_validate(cdev, mkvlist);
2477         if (ret) {
2478                 DRV_LOG(ERR, "Probe again parameters are not compatible : %s",
2479                         strerror(rte_errno));
2480                 return -rte_errno;
2481         }
2482         if (mlx5_dev_is_pci(cdev->dev))
2483                 return mlx5_os_pci_probe(cdev, mkvlist);
2484         else
2485                 return mlx5_os_auxiliary_probe(cdev, mkvlist);
2486 }
2487
2488 /**
2489  * Cleanup resources when the last device is closed.
2490  */
2491 void
2492 mlx5_os_net_cleanup(void)
2493 {
2494         mlx5_pmd_socket_uninit();
2495 }
2496
2497 static int
2498 mlx5_os_dev_shared_handler_install_lsc(struct mlx5_dev_ctx_shared *sh)
2499 {
2500         int nlsk_fd, flags, ret;
2501
2502         nlsk_fd = mlx5_nl_init(NETLINK_ROUTE, RTMGRP_LINK);
2503         if (nlsk_fd < 0) {
2504                 DRV_LOG(ERR, "Failed to create a socket for Netlink events: %s",
2505                         rte_strerror(rte_errno));
2506                 return -1;
2507         }
2508         flags = fcntl(nlsk_fd, F_GETFL);
2509         ret = fcntl(nlsk_fd, F_SETFL, flags | O_NONBLOCK);
2510         if (ret != 0) {
2511                 DRV_LOG(ERR, "Failed to make Netlink event socket non-blocking: %s",
2512                         strerror(errno));
2513                 rte_errno = errno;
2514                 goto error;
2515         }
2516         rte_intr_type_set(sh->intr_handle_nl, RTE_INTR_HANDLE_EXT);
2517         rte_intr_fd_set(sh->intr_handle_nl, nlsk_fd);
2518         if (rte_intr_callback_register(sh->intr_handle_nl,
2519                                        mlx5_dev_interrupt_handler_nl,
2520                                        sh) != 0) {
2521                 DRV_LOG(ERR, "Failed to register Netlink events interrupt");
2522                 rte_intr_fd_set(sh->intr_handle_nl, -1);
2523                 goto error;
2524         }
2525         return 0;
2526 error:
2527         close(nlsk_fd);
2528         return -1;
2529 }
2530
2531 /**
2532  * Install shared asynchronous device events handler.
2533  * This function is implemented to support event sharing
2534  * between multiple ports of single IB device.
2535  *
2536  * @param sh
2537  *   Pointer to mlx5_dev_ctx_shared object.
2538  */
2539 void
2540 mlx5_os_dev_shared_handler_install(struct mlx5_dev_ctx_shared *sh)
2541 {
2542         int ret;
2543         int flags;
2544         struct ibv_context *ctx = sh->cdev->ctx;
2545
2546         sh->intr_handle = rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_SHARED);
2547         if (sh->intr_handle == NULL) {
2548                 DRV_LOG(ERR, "Fail to allocate intr_handle");
2549                 rte_errno = ENOMEM;
2550                 return;
2551         }
2552         rte_intr_fd_set(sh->intr_handle, -1);
2553
2554         flags = fcntl(ctx->async_fd, F_GETFL);
2555         ret = fcntl(ctx->async_fd, F_SETFL, flags | O_NONBLOCK);
2556         if (ret) {
2557                 DRV_LOG(INFO, "failed to change file descriptor async event"
2558                         " queue");
2559         } else {
2560                 rte_intr_fd_set(sh->intr_handle, ctx->async_fd);
2561                 rte_intr_type_set(sh->intr_handle, RTE_INTR_HANDLE_EXT);
2562                 if (rte_intr_callback_register(sh->intr_handle,
2563                                         mlx5_dev_interrupt_handler, sh)) {
2564                         DRV_LOG(INFO, "Fail to install the shared interrupt.");
2565                         rte_intr_fd_set(sh->intr_handle, -1);
2566                 }
2567         }
2568         sh->intr_handle_nl = rte_intr_instance_alloc
2569                                                 (RTE_INTR_INSTANCE_F_SHARED);
2570         if (sh->intr_handle_nl == NULL) {
2571                 DRV_LOG(ERR, "Fail to allocate intr_handle");
2572                 rte_errno = ENOMEM;
2573                 return;
2574         }
2575         rte_intr_fd_set(sh->intr_handle_nl, -1);
2576         if (mlx5_os_dev_shared_handler_install_lsc(sh) < 0) {
2577                 DRV_LOG(INFO, "Fail to install the shared Netlink event handler.");
2578                 rte_intr_fd_set(sh->intr_handle_nl, -1);
2579         }
2580         if (sh->cdev->config.devx) {
2581 #ifdef HAVE_IBV_DEVX_ASYNC
2582                 sh->intr_handle_devx =
2583                         rte_intr_instance_alloc(RTE_INTR_INSTANCE_F_SHARED);
2584                 if (!sh->intr_handle_devx) {
2585                         DRV_LOG(ERR, "Fail to allocate intr_handle");
2586                         rte_errno = ENOMEM;
2587                         return;
2588                 }
2589                 rte_intr_fd_set(sh->intr_handle_devx, -1);
2590                 sh->devx_comp = (void *)mlx5_glue->devx_create_cmd_comp(ctx);
2591                 struct mlx5dv_devx_cmd_comp *devx_comp = sh->devx_comp;
2592                 if (!devx_comp) {
2593                         DRV_LOG(INFO, "failed to allocate devx_comp.");
2594                         return;
2595                 }
2596                 flags = fcntl(devx_comp->fd, F_GETFL);
2597                 ret = fcntl(devx_comp->fd, F_SETFL, flags | O_NONBLOCK);
2598                 if (ret) {
2599                         DRV_LOG(INFO, "failed to change file descriptor"
2600                                 " devx comp");
2601                         return;
2602                 }
2603                 rte_intr_fd_set(sh->intr_handle_devx, devx_comp->fd);
2604                 rte_intr_type_set(sh->intr_handle_devx,
2605                                          RTE_INTR_HANDLE_EXT);
2606                 if (rte_intr_callback_register(sh->intr_handle_devx,
2607                                         mlx5_dev_interrupt_handler_devx, sh)) {
2608                         DRV_LOG(INFO, "Fail to install the devx shared"
2609                                 " interrupt.");
2610                         rte_intr_fd_set(sh->intr_handle_devx, -1);
2611                 }
2612 #endif /* HAVE_IBV_DEVX_ASYNC */
2613         }
2614 }
2615
2616 /**
2617  * Uninstall shared asynchronous device events handler.
2618  * This function is implemented to support event sharing
2619  * between multiple ports of single IB device.
2620  *
2621  * @param dev
2622  *   Pointer to mlx5_dev_ctx_shared object.
2623  */
2624 void
2625 mlx5_os_dev_shared_handler_uninstall(struct mlx5_dev_ctx_shared *sh)
2626 {
2627         int nlsk_fd;
2628
2629         if (rte_intr_fd_get(sh->intr_handle) >= 0)
2630                 mlx5_intr_callback_unregister(sh->intr_handle,
2631                                               mlx5_dev_interrupt_handler, sh);
2632         rte_intr_instance_free(sh->intr_handle);
2633         nlsk_fd = rte_intr_fd_get(sh->intr_handle_nl);
2634         if (nlsk_fd >= 0) {
2635                 mlx5_intr_callback_unregister
2636                         (sh->intr_handle_nl, mlx5_dev_interrupt_handler_nl, sh);
2637                 close(nlsk_fd);
2638         }
2639         rte_intr_instance_free(sh->intr_handle_nl);
2640 #ifdef HAVE_IBV_DEVX_ASYNC
2641         if (rte_intr_fd_get(sh->intr_handle_devx) >= 0)
2642                 rte_intr_callback_unregister(sh->intr_handle_devx,
2643                                   mlx5_dev_interrupt_handler_devx, sh);
2644         rte_intr_instance_free(sh->intr_handle_devx);
2645         if (sh->devx_comp)
2646                 mlx5_glue->devx_destroy_cmd_comp(sh->devx_comp);
2647 #endif
2648 }
2649
2650 /**
2651  * Read statistics by a named counter.
2652  *
2653  * @param[in] priv
2654  *   Pointer to the private device data structure.
2655  * @param[in] ctr_name
2656  *   Pointer to the name of the statistic counter to read
2657  * @param[out] stat
2658  *   Pointer to read statistic value.
2659  * @return
2660  *   0 on success and stat is valud, 1 if failed to read the value
2661  *   rte_errno is set.
2662  *
2663  */
2664 int
2665 mlx5_os_read_dev_stat(struct mlx5_priv *priv, const char *ctr_name,
2666                       uint64_t *stat)
2667 {
2668         int fd;
2669
2670         if (priv->sh) {
2671                 if (priv->q_counters != NULL &&
2672                     strcmp(ctr_name, "out_of_buffer") == 0)
2673                         return mlx5_devx_cmd_queue_counter_query
2674                                         (priv->q_counters, 0, (uint32_t *)stat);
2675                 MKSTR(path, "%s/ports/%d/hw_counters/%s",
2676                       priv->sh->ibdev_path,
2677                       priv->dev_port,
2678                       ctr_name);
2679                 fd = open(path, O_RDONLY);
2680                 /*
2681                  * in switchdev the file location is not per port
2682                  * but rather in <ibdev_path>/hw_counters/<file_name>.
2683                  */
2684                 if (fd == -1) {
2685                         MKSTR(path1, "%s/hw_counters/%s",
2686                               priv->sh->ibdev_path,
2687                               ctr_name);
2688                         fd = open(path1, O_RDONLY);
2689                 }
2690                 if (fd != -1) {
2691                         char buf[21] = {'\0'};
2692                         ssize_t n = read(fd, buf, sizeof(buf));
2693
2694                         close(fd);
2695                         if (n != -1) {
2696                                 *stat = strtoull(buf, NULL, 10);
2697                                 return 0;
2698                         }
2699                 }
2700         }
2701         *stat = 0;
2702         return 1;
2703 }
2704
2705 /**
2706  * Remove a MAC address from device
2707  *
2708  * @param dev
2709  *   Pointer to Ethernet device structure.
2710  * @param index
2711  *   MAC address index.
2712  */
2713 void
2714 mlx5_os_mac_addr_remove(struct rte_eth_dev *dev, uint32_t index)
2715 {
2716         struct mlx5_priv *priv = dev->data->dev_private;
2717         const int vf = priv->sh->dev_cap.vf;
2718
2719         if (vf)
2720                 mlx5_nl_mac_addr_remove(priv->nl_socket_route,
2721                                         mlx5_ifindex(dev), priv->mac_own,
2722                                         &dev->data->mac_addrs[index], index);
2723 }
2724
2725 /**
2726  * Adds a MAC address to the device
2727  *
2728  * @param dev
2729  *   Pointer to Ethernet device structure.
2730  * @param mac_addr
2731  *   MAC address to register.
2732  * @param index
2733  *   MAC address index.
2734  *
2735  * @return
2736  *   0 on success, a negative errno value otherwise
2737  */
2738 int
2739 mlx5_os_mac_addr_add(struct rte_eth_dev *dev, struct rte_ether_addr *mac,
2740                      uint32_t index)
2741 {
2742         struct mlx5_priv *priv = dev->data->dev_private;
2743         const int vf = priv->sh->dev_cap.vf;
2744         int ret = 0;
2745
2746         if (vf)
2747                 ret = mlx5_nl_mac_addr_add(priv->nl_socket_route,
2748                                            mlx5_ifindex(dev), priv->mac_own,
2749                                            mac, index);
2750         return ret;
2751 }
2752
2753 /**
2754  * Modify a VF MAC address
2755  *
2756  * @param priv
2757  *   Pointer to device private data.
2758  * @param mac_addr
2759  *   MAC address to modify into.
2760  * @param iface_idx
2761  *   Net device interface index
2762  * @param vf_index
2763  *   VF index
2764  *
2765  * @return
2766  *   0 on success, a negative errno value otherwise
2767  */
2768 int
2769 mlx5_os_vf_mac_addr_modify(struct mlx5_priv *priv,
2770                            unsigned int iface_idx,
2771                            struct rte_ether_addr *mac_addr,
2772                            int vf_index)
2773 {
2774         return mlx5_nl_vf_mac_addr_modify
2775                 (priv->nl_socket_route, iface_idx, mac_addr, vf_index);
2776 }
2777
2778 /**
2779  * Set device promiscuous mode
2780  *
2781  * @param dev
2782  *   Pointer to Ethernet device structure.
2783  * @param enable
2784  *   0 - promiscuous is disabled, otherwise - enabled
2785  *
2786  * @return
2787  *   0 on success, a negative error value otherwise
2788  */
2789 int
2790 mlx5_os_set_promisc(struct rte_eth_dev *dev, int enable)
2791 {
2792         struct mlx5_priv *priv = dev->data->dev_private;
2793
2794         return mlx5_nl_promisc(priv->nl_socket_route,
2795                                mlx5_ifindex(dev), !!enable);
2796 }
2797
2798 /**
2799  * Set device promiscuous mode
2800  *
2801  * @param dev
2802  *   Pointer to Ethernet device structure.
2803  * @param enable
2804  *   0 - all multicase is disabled, otherwise - enabled
2805  *
2806  * @return
2807  *   0 on success, a negative error value otherwise
2808  */
2809 int
2810 mlx5_os_set_allmulti(struct rte_eth_dev *dev, int enable)
2811 {
2812         struct mlx5_priv *priv = dev->data->dev_private;
2813
2814         return mlx5_nl_allmulti(priv->nl_socket_route,
2815                                 mlx5_ifindex(dev), !!enable);
2816 }
2817
2818 /**
2819  * Flush device MAC addresses
2820  *
2821  * @param dev
2822  *   Pointer to Ethernet device structure.
2823  *
2824  */
2825 void
2826 mlx5_os_mac_addr_flush(struct rte_eth_dev *dev)
2827 {
2828         struct mlx5_priv *priv = dev->data->dev_private;
2829
2830         mlx5_nl_mac_addr_flush(priv->nl_socket_route, mlx5_ifindex(dev),
2831                                dev->data->mac_addrs,
2832                                MLX5_MAX_MAC_ADDRESSES, priv->mac_own);
2833 }