drivers/net/mlx5/mlx5.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright 2015 6WIND S.A.
   3  * Copyright 2015 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
  13 #include <rte_malloc.h>
  14 #include <rte_ethdev_driver.h>
  15 #include <rte_ethdev_pci.h>
  16 #include <rte_pci.h>
  17 #include <rte_bus_pci.h>
  18 #include <rte_common.h>
  19 #include <rte_kvargs.h>
  20 #include <rte_rwlock.h>
  21 #include <rte_spinlock.h>
  22 #include <rte_string_fns.h>
  23 #include <rte_alarm.h>
  24
  25 #include <mlx5_glue.h>
  26 #include <mlx5_devx_cmds.h>
  27 #include <mlx5_common.h>
  28 #include <mlx5_common_os.h>
  29 #include <mlx5_common_mp.h>
  30 #include <mlx5_common_pci.h>
  31 #include <mlx5_malloc.h>
  32
  33 #include "mlx5_defs.h"
  34 #include "mlx5.h"
  35 #include "mlx5_utils.h"
  36 #include "mlx5_rxtx.h"
  37 #include "mlx5_autoconf.h"
  38 #include "mlx5_mr.h"
  39 #include "mlx5_flow.h"
  40 #include "rte_pmd_mlx5.h"
  41
  42 /* Device parameter to enable RX completion queue compression. */
  43 #define MLX5_RXQ_CQE_COMP_EN "rxq_cqe_comp_en"
  44
  45 /* Device parameter to enable RX completion entry padding to 128B. */
  46 #define MLX5_RXQ_CQE_PAD_EN "rxq_cqe_pad_en"
  47
  48 /* Device parameter to enable padding Rx packet to cacheline size. */
  49 #define MLX5_RXQ_PKT_PAD_EN "rxq_pkt_pad_en"
  50
  51 /* Device parameter to enable Multi-Packet Rx queue. */
  52 #define MLX5_RX_MPRQ_EN "mprq_en"
  53
  54 /* Device parameter to configure log 2 of the number of strides for MPRQ. */
  55 #define MLX5_RX_MPRQ_LOG_STRIDE_NUM "mprq_log_stride_num"
  56
  57 /* Device parameter to configure log 2 of the stride size for MPRQ. */
  58 #define MLX5_RX_MPRQ_LOG_STRIDE_SIZE "mprq_log_stride_size"
  59
  60 /* Device parameter to limit the size of memcpy'd packet for MPRQ. */
  61 #define MLX5_RX_MPRQ_MAX_MEMCPY_LEN "mprq_max_memcpy_len"
  62
  63 /* Device parameter to set the minimum number of Rx queues to enable MPRQ. */
  64 #define MLX5_RXQS_MIN_MPRQ "rxqs_min_mprq"
  65
  66 /* Device parameter to configure inline send. Deprecated, ignored.*/
  67 #define MLX5_TXQ_INLINE "txq_inline"
  68
  69 /* Device parameter to limit packet size to inline with ordinary SEND. */
  70 #define MLX5_TXQ_INLINE_MAX "txq_inline_max"
  71
  72 /* Device parameter to configure minimal data size to inline. */
  73 #define MLX5_TXQ_INLINE_MIN "txq_inline_min"
  74
  75 /* Device parameter to limit packet size to inline with Enhanced MPW. */
  76 #define MLX5_TXQ_INLINE_MPW "txq_inline_mpw"
  77
  78 /*
  79  * Device parameter to configure the number of TX queues threshold for
  80  * enabling inline send.
  81  */
  82 #define MLX5_TXQS_MIN_INLINE "txqs_min_inline"
  83
  84 /*
  85  * Device parameter to configure the number of TX queues threshold for
  86  * enabling vectorized Tx, deprecated, ignored (no vectorized Tx routines).
  87  */
  88 #define MLX5_TXQS_MAX_VEC "txqs_max_vec"
  89
  90 /* Device parameter to enable multi-packet send WQEs. */
  91 #define MLX5_TXQ_MPW_EN "txq_mpw_en"
  92
  93 /*
  94  * Device parameter to force doorbell register mapping
  95  * to non-cahed region eliminating the extra write memory barrier.
  96  */
  97 #define MLX5_TX_DB_NC "tx_db_nc"
  98
  99 /*
 100  * Device parameter to include 2 dsegs in the title WQEBB.
 101  * Deprecated, ignored.
 102  */
 103 #define MLX5_TXQ_MPW_HDR_DSEG_EN "txq_mpw_hdr_dseg_en"
 104
 105 /*
 106  * Device parameter to limit the size of inlining packet.
 107  * Deprecated, ignored.
 108  */
 109 #define MLX5_TXQ_MAX_INLINE_LEN "txq_max_inline_len"
 110
 111 /*
 112  * Device parameter to enable Tx scheduling on timestamps
 113  * and specify the packet pacing granularity in nanoseconds.
 114  */
 115 #define MLX5_TX_PP "tx_pp"
 116
 117 /*
 118  * Device parameter to specify skew in nanoseconds on Tx datapath,
 119  * it represents the time between SQ start WQE processing and
 120  * appearing actual packet data on the wire.
 121  */
 122 #define MLX5_TX_SKEW "tx_skew"
 123
 124 /*
 125  * Device parameter to enable hardware Tx vector.
 126  * Deprecated, ignored (no vectorized Tx routines anymore).
 127  */
 128 #define MLX5_TX_VEC_EN "tx_vec_en"
 129
 130 /* Device parameter to enable hardware Rx vector. */
 131 #define MLX5_RX_VEC_EN "rx_vec_en"
 132
 133 /* Allow L3 VXLAN flow creation. */
 134 #define MLX5_L3_VXLAN_EN "l3_vxlan_en"
 135
 136 /* Activate DV E-Switch flow steering. */
 137 #define MLX5_DV_ESW_EN "dv_esw_en"
 138
 139 /* Activate DV flow steering. */
 140 #define MLX5_DV_FLOW_EN "dv_flow_en"
 141
 142 /* Enable extensive flow metadata support. */
 143 #define MLX5_DV_XMETA_EN "dv_xmeta_en"
 144
 145 /* Device parameter to let the user manage the lacp traffic of bonded device */
 146 #define MLX5_LACP_BY_USER "lacp_by_user"
 147
 148 /* Activate Netlink support in VF mode. */
 149 #define MLX5_VF_NL_EN "vf_nl_en"
 150
 151 /* Enable extending memsegs when creating a MR. */
 152 #define MLX5_MR_EXT_MEMSEG_EN "mr_ext_memseg_en"
 153
 154 /* Select port representors to instantiate. */
 155 #define MLX5_REPRESENTOR "representor"
 156
 157 /* Device parameter to configure the maximum number of dump files per queue. */
 158 #define MLX5_MAX_DUMP_FILES_NUM "max_dump_files_num"
 159
 160 /* Configure timeout of LRO session (in microseconds). */
 161 #define MLX5_LRO_TIMEOUT_USEC "lro_timeout_usec"
 162
 163 /*
 164  * Device parameter to configure the total data buffer size for a single
 165  * hairpin queue (logarithm value).
 166  */
 167 #define MLX5_HP_BUF_SIZE "hp_buf_log_sz"
 168
 169 /* Flow memory reclaim mode. */
 170 #define MLX5_RECLAIM_MEM "reclaim_mem_mode"
 171
 172 /* The default memory allocator used in PMD. */
 173 #define MLX5_SYS_MEM_EN "sys_mem_en"
 174 /* Decap will be used or not. */
 175 #define MLX5_DECAP_EN "decap_en"
 176
 177 /* Shared memory between primary and secondary processes. */
 178 struct mlx5_shared_data *mlx5_shared_data;
 179
 180 /** Driver-specific log messages type. */
 181 int mlx5_logtype;
 182
 183 static LIST_HEAD(, mlx5_dev_ctx_shared) mlx5_dev_ctx_list =
 184                                                 LIST_HEAD_INITIALIZER();
 185 static pthread_mutex_t mlx5_dev_ctx_list_mutex = PTHREAD_MUTEX_INITIALIZER;
 186
 187 static const struct mlx5_indexed_pool_config mlx5_ipool_cfg[] = {
 188 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
 189         [MLX5_IPOOL_DECAP_ENCAP] = {
 190                 .size = sizeof(struct mlx5_flow_dv_encap_decap_resource),
 191                 .trunk_size = 64,
 192                 .grow_trunk = 3,
 193                 .grow_shift = 2,
 194                 .need_lock = 1,
 195                 .release_mem_en = 1,
 196                 .malloc = mlx5_malloc,
 197                 .free = mlx5_free,
 198                 .type = "mlx5_encap_decap_ipool",
 199         },
 200         [MLX5_IPOOL_PUSH_VLAN] = {
 201                 .size = sizeof(struct mlx5_flow_dv_push_vlan_action_resource),
 202                 .trunk_size = 64,
 203                 .grow_trunk = 3,
 204                 .grow_shift = 2,
 205                 .need_lock = 1,
 206                 .release_mem_en = 1,
 207                 .malloc = mlx5_malloc,
 208                 .free = mlx5_free,
 209                 .type = "mlx5_push_vlan_ipool",
 210         },
 211         [MLX5_IPOOL_TAG] = {
 212                 .size = sizeof(struct mlx5_flow_dv_tag_resource),
 213                 .trunk_size = 64,
 214                 .grow_trunk = 3,
 215                 .grow_shift = 2,
 216                 .need_lock = 1,
 217                 .release_mem_en = 1,
 218                 .malloc = mlx5_malloc,
 219                 .free = mlx5_free,
 220                 .type = "mlx5_tag_ipool",
 221         },
 222         [MLX5_IPOOL_PORT_ID] = {
 223                 .size = sizeof(struct mlx5_flow_dv_port_id_action_resource),
 224                 .trunk_size = 64,
 225                 .grow_trunk = 3,
 226                 .grow_shift = 2,
 227                 .need_lock = 1,
 228                 .release_mem_en = 1,
 229                 .malloc = mlx5_malloc,
 230                 .free = mlx5_free,
 231                 .type = "mlx5_port_id_ipool",
 232         },
 233         [MLX5_IPOOL_JUMP] = {
 234                 .size = sizeof(struct mlx5_flow_tbl_data_entry),
 235                 .trunk_size = 64,
 236                 .grow_trunk = 3,
 237                 .grow_shift = 2,
 238                 .need_lock = 1,
 239                 .release_mem_en = 1,
 240                 .malloc = mlx5_malloc,
 241                 .free = mlx5_free,
 242                 .type = "mlx5_jump_ipool",
 243         },
 244         [MLX5_IPOOL_SAMPLE] = {
 245                 .size = sizeof(struct mlx5_flow_dv_sample_resource),
 246                 .trunk_size = 64,
 247                 .grow_trunk = 3,
 248                 .grow_shift = 2,
 249                 .need_lock = 1,
 250                 .release_mem_en = 1,
 251                 .malloc = mlx5_malloc,
 252                 .free = mlx5_free,
 253                 .type = "mlx5_sample_ipool",
 254         },
 255         [MLX5_IPOOL_DEST_ARRAY] = {
 256                 .size = sizeof(struct mlx5_flow_dv_dest_array_resource),
 257                 .trunk_size = 64,
 258                 .grow_trunk = 3,
 259                 .grow_shift = 2,
 260                 .need_lock = 1,
 261                 .release_mem_en = 1,
 262                 .malloc = mlx5_malloc,
 263                 .free = mlx5_free,
 264                 .type = "mlx5_dest_array_ipool",
 265         },
 266         [MLX5_IPOOL_TUNNEL_ID] = {
 267                 .size = sizeof(struct mlx5_flow_tunnel),
 268                 .need_lock = 1,
 269                 .release_mem_en = 1,
 270                 .type = "mlx5_tunnel_offload",
 271         },
 272         [MLX5_IPOOL_TNL_TBL_ID] = {
 273                 .size = 0,
 274                 .need_lock = 1,
 275                 .type = "mlx5_flow_tnl_tbl_ipool",
 276         },
 277 #endif
 278         [MLX5_IPOOL_MTR] = {
 279                 .size = sizeof(struct mlx5_flow_meter),
 280                 .trunk_size = 64,
 281                 .grow_trunk = 3,
 282                 .grow_shift = 2,
 283                 .need_lock = 1,
 284                 .release_mem_en = 1,
 285                 .malloc = mlx5_malloc,
 286                 .free = mlx5_free,
 287                 .type = "mlx5_meter_ipool",
 288         },
 289         [MLX5_IPOOL_MCP] = {
 290                 .size = sizeof(struct mlx5_flow_mreg_copy_resource),
 291                 .trunk_size = 64,
 292                 .grow_trunk = 3,
 293                 .grow_shift = 2,
 294                 .need_lock = 1,
 295                 .release_mem_en = 1,
 296                 .malloc = mlx5_malloc,
 297                 .free = mlx5_free,
 298                 .type = "mlx5_mcp_ipool",
 299         },
 300         [MLX5_IPOOL_HRXQ] = {
 301                 .size = (sizeof(struct mlx5_hrxq) + MLX5_RSS_HASH_KEY_LEN),
 302                 .trunk_size = 64,
 303                 .grow_trunk = 3,
 304                 .grow_shift = 2,
 305                 .need_lock = 1,
 306                 .release_mem_en = 1,
 307                 .malloc = mlx5_malloc,
 308                 .free = mlx5_free,
 309                 .type = "mlx5_hrxq_ipool",
 310         },
 311         [MLX5_IPOOL_MLX5_FLOW] = {
 312                 /*
 313                  * MLX5_IPOOL_MLX5_FLOW size varies for DV and VERBS flows.
 314                  * It set in run time according to PCI function configuration.
 315                  */
 316                 .size = 0,
 317                 .trunk_size = 64,
 318                 .grow_trunk = 3,
 319                 .grow_shift = 2,
 320                 .need_lock = 1,
 321                 .release_mem_en = 1,
 322                 .malloc = mlx5_malloc,
 323                 .free = mlx5_free,
 324                 .type = "mlx5_flow_handle_ipool",
 325         },
 326         [MLX5_IPOOL_RTE_FLOW] = {
 327                 .size = sizeof(struct rte_flow),
 328                 .trunk_size = 4096,
 329                 .need_lock = 1,
 330                 .release_mem_en = 1,
 331                 .malloc = mlx5_malloc,
 332                 .free = mlx5_free,
 333                 .type = "rte_flow_ipool",
 334         },
 335         [MLX5_IPOOL_RSS_EXPANTION_FLOW_ID] = {
 336                 .size = 0,
 337                 .need_lock = 1,
 338                 .type = "mlx5_flow_rss_id_ipool",
 339         },
 340         [MLX5_IPOOL_RSS_SHARED_ACTIONS] = {
 341                 .size = sizeof(struct mlx5_shared_action_rss),
 342                 .trunk_size = 64,
 343                 .grow_trunk = 3,
 344                 .grow_shift = 2,
 345                 .need_lock = 1,
 346                 .release_mem_en = 1,
 347                 .malloc = mlx5_malloc,
 348                 .free = mlx5_free,
 349                 .type = "mlx5_shared_action_rss",
 350         },
 351 };
 352
 353
 354 #define MLX5_FLOW_MIN_ID_POOL_SIZE 512
 355 #define MLX5_ID_GENERATION_ARRAY_FACTOR 16
 356
 357 #define MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE 4096
 358
 359 /**
 360  * Initialize the ASO aging management structure.
 361  *
 362  * @param[in] sh
 363  *   Pointer to mlx5_dev_ctx_shared object to free
 364  *
 365  * @return
 366  *   0 on success, a negative errno value otherwise and rte_errno is set.
 367  */
 368 int
 369 mlx5_flow_aso_age_mng_init(struct mlx5_dev_ctx_shared *sh)
 370 {
 371         int err;
 372
 373         if (sh->aso_age_mng)
 374                 return 0;
 375         sh->aso_age_mng = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*sh->aso_age_mng),
 376                                       RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
 377         if (!sh->aso_age_mng) {
 378                 DRV_LOG(ERR, "aso_age_mng allocation was failed.");
 379                 rte_errno = ENOMEM;
 380                 return -ENOMEM;
 381         }
 382         err = mlx5_aso_queue_init(sh);
 383         if (err) {
 384                 mlx5_free(sh->aso_age_mng);
 385                 return -1;
 386         }
 387         rte_spinlock_init(&sh->aso_age_mng->resize_sl);
 388         rte_spinlock_init(&sh->aso_age_mng->free_sl);
 389         LIST_INIT(&sh->aso_age_mng->free);
 390         return 0;
 391 }
 392
 393 /**
 394  * Close and release all the resources of the ASO aging management structure.
 395  *
 396  * @param[in] sh
 397  *   Pointer to mlx5_dev_ctx_shared object to free.
 398  */
 399 static void
 400 mlx5_flow_aso_age_mng_close(struct mlx5_dev_ctx_shared *sh)
 401 {
 402         int i, j;
 403
 404         mlx5_aso_queue_stop(sh);
 405         mlx5_aso_queue_uninit(sh);
 406         if (sh->aso_age_mng->pools) {
 407                 struct mlx5_aso_age_pool *pool;
 408
 409                 for (i = 0; i < sh->aso_age_mng->next; ++i) {
 410                         pool = sh->aso_age_mng->pools[i];
 411                         claim_zero(mlx5_devx_cmd_destroy
 412                                                 (pool->flow_hit_aso_obj));
 413                         for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j)
 414                                 if (pool->actions[j].dr_action)
 415                                         claim_zero
 416                                                 (mlx5_glue->destroy_flow_action
 417                                                   (pool->actions[j].dr_action));
 418                         mlx5_free(pool);
 419                 }
 420                 mlx5_free(sh->aso_age_mng->pools);
 421         }
 422         mlx5_free(sh->aso_age_mng);
 423 }
 424
 425 /**
 426  * Initialize the shared aging list information per port.
 427  *
 428  * @param[in] sh
 429  *   Pointer to mlx5_dev_ctx_shared object.
 430  */
 431 static void
 432 mlx5_flow_aging_init(struct mlx5_dev_ctx_shared *sh)
 433 {
 434         uint32_t i;
 435         struct mlx5_age_info *age_info;
 436
 437         for (i = 0; i < sh->max_port; i++) {
 438                 age_info = &sh->port[i].age_info;
 439                 age_info->flags = 0;
 440                 TAILQ_INIT(&age_info->aged_counters);
 441                 LIST_INIT(&age_info->aged_aso);
 442                 rte_spinlock_init(&age_info->aged_sl);
 443                 MLX5_AGE_SET(age_info, MLX5_AGE_TRIGGER);
 444         }
 445 }
 446
 447 /**
 448  * Initialize the counters management structure.
 449  *
 450  * @param[in] sh
 451  *   Pointer to mlx5_dev_ctx_shared object to free
 452  */
 453 static void
 454 mlx5_flow_counters_mng_init(struct mlx5_dev_ctx_shared *sh)
 455 {
 456         int i;
 457
 458         memset(&sh->cmng, 0, sizeof(sh->cmng));
 459         TAILQ_INIT(&sh->cmng.flow_counters);
 460         sh->cmng.min_id = MLX5_CNT_BATCH_OFFSET;
 461         sh->cmng.max_id = -1;
 462         sh->cmng.last_pool_idx = POOL_IDX_INVALID;
 463         rte_spinlock_init(&sh->cmng.pool_update_sl);
 464         for (i = 0; i < MLX5_COUNTER_TYPE_MAX; i++) {
 465                 TAILQ_INIT(&sh->cmng.counters[i]);
 466                 rte_spinlock_init(&sh->cmng.csl[i]);
 467         }
 468 }
 469
 470 /**
 471  * Destroy all the resources allocated for a counter memory management.
 472  *
 473  * @param[in] mng
 474  *   Pointer to the memory management structure.
 475  */
 476 static void
 477 mlx5_flow_destroy_counter_stat_mem_mng(struct mlx5_counter_stats_mem_mng *mng)
 478 {
 479         uint8_t *mem = (uint8_t *)(uintptr_t)mng->raws[0].data;
 480
 481         LIST_REMOVE(mng, next);
 482         claim_zero(mlx5_devx_cmd_destroy(mng->dm));
 483         claim_zero(mlx5_glue->devx_umem_dereg(mng->umem));
 484         mlx5_free(mem);
 485 }
 486
 487 /**
 488  * Close and release all the resources of the counters management.
 489  *
 490  * @param[in] sh
 491  *   Pointer to mlx5_dev_ctx_shared object to free.
 492  */
 493 static void
 494 mlx5_flow_counters_mng_close(struct mlx5_dev_ctx_shared *sh)
 495 {
 496         struct mlx5_counter_stats_mem_mng *mng;
 497         int i, j;
 498         int retries = 1024;
 499
 500         rte_errno = 0;
 501         while (--retries) {
 502                 rte_eal_alarm_cancel(mlx5_flow_query_alarm, sh);
 503                 if (rte_errno != EINPROGRESS)
 504                         break;
 505                 rte_pause();
 506         }
 507
 508         if (sh->cmng.pools) {
 509                 struct mlx5_flow_counter_pool *pool;
 510                 uint16_t n_valid = sh->cmng.n_valid;
 511                 bool fallback = sh->cmng.counter_fallback;
 512
 513                 for (i = 0; i < n_valid; ++i) {
 514                         pool = sh->cmng.pools[i];
 515                         if (!fallback && pool->min_dcs)
 516                                 claim_zero(mlx5_devx_cmd_destroy
 517                                                                (pool->min_dcs));
 518                         for (j = 0; j < MLX5_COUNTERS_PER_POOL; ++j) {
 519                                 struct mlx5_flow_counter *cnt =
 520                                                 MLX5_POOL_GET_CNT(pool, j);
 521
 522                                 if (cnt->action)
 523                                         claim_zero
 524                                          (mlx5_glue->destroy_flow_action
 525                                           (cnt->action));
 526                                 if (fallback && MLX5_POOL_GET_CNT
 527                                     (pool, j)->dcs_when_free)
 528                                         claim_zero(mlx5_devx_cmd_destroy
 529                                                    (cnt->dcs_when_free));
 530                         }
 531                         mlx5_free(pool);
 532                 }
 533                 mlx5_free(sh->cmng.pools);
 534         }
 535         mng = LIST_FIRST(&sh->cmng.mem_mngs);
 536         while (mng) {
 537                 mlx5_flow_destroy_counter_stat_mem_mng(mng);
 538                 mng = LIST_FIRST(&sh->cmng.mem_mngs);
 539         }
 540         memset(&sh->cmng, 0, sizeof(sh->cmng));
 541 }
 542
 543 /* Send FLOW_AGED event if needed. */
 544 void
 545 mlx5_age_event_prepare(struct mlx5_dev_ctx_shared *sh)
 546 {
 547         struct mlx5_age_info *age_info;
 548         uint32_t i;
 549
 550         for (i = 0; i < sh->max_port; i++) {
 551                 age_info = &sh->port[i].age_info;
 552                 if (!MLX5_AGE_GET(age_info, MLX5_AGE_EVENT_NEW))
 553                         continue;
 554                 if (MLX5_AGE_GET(age_info, MLX5_AGE_TRIGGER))
 555                         rte_eth_dev_callback_process
 556                                 (&rte_eth_devices[sh->port[i].devx_ih_port_id],
 557                                 RTE_ETH_EVENT_FLOW_AGED, NULL);
 558                 age_info->flags = 0;
 559         }
 560 }
 561
 562 /**
 563  * Initialize the flow resources' indexed mempool.
 564  *
 565  * @param[in] sh
 566  *   Pointer to mlx5_dev_ctx_shared object.
 567  * @param[in] sh
 568  *   Pointer to user dev config.
 569  */
 570 static void
 571 mlx5_flow_ipool_create(struct mlx5_dev_ctx_shared *sh,
 572                        const struct mlx5_dev_config *config)
 573 {
 574         uint8_t i;
 575         struct mlx5_indexed_pool_config cfg;
 576
 577         for (i = 0; i < MLX5_IPOOL_MAX; ++i) {
 578                 cfg = mlx5_ipool_cfg[i];
 579                 switch (i) {
 580                 default:
 581                         break;
 582                 /*
 583                  * Set MLX5_IPOOL_MLX5_FLOW ipool size
 584                  * according to PCI function flow configuration.
 585                  */
 586                 case MLX5_IPOOL_MLX5_FLOW:
 587                         cfg.size = config->dv_flow_en ?
 588                                 sizeof(struct mlx5_flow_handle) :
 589                                 MLX5_FLOW_HANDLE_VERBS_SIZE;
 590                         break;
 591                 }
 592                 if (config->reclaim_mode)
 593                         cfg.release_mem_en = 1;
 594                 sh->ipool[i] = mlx5_ipool_create(&cfg);
 595         }
 596 }
 597
 598 /**
 599  * Release the flow resources' indexed mempool.
 600  *
 601  * @param[in] sh
 602  *   Pointer to mlx5_dev_ctx_shared object.
 603  */
 604 static void
 605 mlx5_flow_ipool_destroy(struct mlx5_dev_ctx_shared *sh)
 606 {
 607         uint8_t i;
 608
 609         for (i = 0; i < MLX5_IPOOL_MAX; ++i)
 610                 mlx5_ipool_destroy(sh->ipool[i]);
 611 }
 612
 613 /*
 614  * Check if dynamic flex parser for eCPRI already exists.
 615  *
 616  * @param dev
 617  *   Pointer to Ethernet device structure.
 618  *
 619  * @return
 620  *   true on exists, false on not.
 621  */
 622 bool
 623 mlx5_flex_parser_ecpri_exist(struct rte_eth_dev *dev)
 624 {
 625         struct mlx5_priv *priv = dev->data->dev_private;
 626         struct mlx5_flex_parser_profiles *prf =
 627                                 &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];
 628
 629         return !!prf->obj;
 630 }
 631
 632 /*
 633  * Allocation of a flex parser for eCPRI. Once created, this parser related
 634  * resources will be held until the device is closed.
 635  *
 636  * @param dev
 637  *   Pointer to Ethernet device structure.
 638  *
 639  * @return
 640  *   0 on success, a negative errno value otherwise and rte_errno is set.
 641  */
 642 int
 643 mlx5_flex_parser_ecpri_alloc(struct rte_eth_dev *dev)
 644 {
 645         struct mlx5_priv *priv = dev->data->dev_private;
 646         struct mlx5_flex_parser_profiles *prf =
 647                                 &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];
 648         struct mlx5_devx_graph_node_attr node = {
 649                 .modify_field_select = 0,
 650         };
 651         uint32_t ids[8];
 652         int ret;
 653
 654         if (!priv->config.hca_attr.parse_graph_flex_node) {
 655                 DRV_LOG(ERR, "Dynamic flex parser is not supported "
 656                         "for device %s.", priv->dev_data->name);
 657                 return -ENOTSUP;
 658         }
 659         node.header_length_mode = MLX5_GRAPH_NODE_LEN_FIXED;
 660         /* 8 bytes now: 4B common header + 4B message body header. */
 661         node.header_length_base_value = 0x8;
 662         /* After MAC layer: Ether / VLAN. */
 663         node.in[0].arc_parse_graph_node = MLX5_GRAPH_ARC_NODE_MAC;
 664         /* Type of compared condition should be 0xAEFE in the L2 layer. */
 665         node.in[0].compare_condition_value = RTE_ETHER_TYPE_ECPRI;
 666         /* Sample #0: type in common header. */
 667         node.sample[0].flow_match_sample_en = 1;
 668         /* Fixed offset. */
 669         node.sample[0].flow_match_sample_offset_mode = 0x0;
 670         /* Only the 2nd byte will be used. */
 671         node.sample[0].flow_match_sample_field_base_offset = 0x0;
 672         /* Sample #1: message payload. */
 673         node.sample[1].flow_match_sample_en = 1;
 674         /* Fixed offset. */
 675         node.sample[1].flow_match_sample_offset_mode = 0x0;
 676         /*
 677          * Only the first two bytes will be used right now, and its offset will
 678          * start after the common header that with the length of a DW(u32).
 679          */
 680         node.sample[1].flow_match_sample_field_base_offset = sizeof(uint32_t);
 681         prf->obj = mlx5_devx_cmd_create_flex_parser(priv->sh->ctx, &node);
 682         if (!prf->obj) {
 683                 DRV_LOG(ERR, "Failed to create flex parser node object.");
 684                 return (rte_errno == 0) ? -ENODEV : -rte_errno;
 685         }
 686         prf->num = 2;
 687         ret = mlx5_devx_cmd_query_parse_samples(prf->obj, ids, prf->num);
 688         if (ret) {
 689                 DRV_LOG(ERR, "Failed to query sample IDs.");
 690                 return (rte_errno == 0) ? -ENODEV : -rte_errno;
 691         }
 692         prf->offset[0] = 0x0;
 693         prf->offset[1] = sizeof(uint32_t);
 694         prf->ids[0] = ids[0];
 695         prf->ids[1] = ids[1];
 696         return 0;
 697 }
 698
 699 /*
 700  * Destroy the flex parser node, including the parser itself, input / output
 701  * arcs and DW samples. Resources could be reused then.
 702  *
 703  * @param dev
 704  *   Pointer to Ethernet device structure.
 705  */
 706 static void
 707 mlx5_flex_parser_ecpri_release(struct rte_eth_dev *dev)
 708 {
 709         struct mlx5_priv *priv = dev->data->dev_private;
 710         struct mlx5_flex_parser_profiles *prf =
 711                                 &priv->sh->fp[MLX5_FLEX_PARSER_ECPRI_0];
 712
 713         if (prf->obj)
 714                 mlx5_devx_cmd_destroy(prf->obj);
 715         prf->obj = NULL;
 716 }
 717
 718 /*
 719  * Allocate Rx and Tx UARs in robust fashion.
 720  * This routine handles the following UAR allocation issues:
 721  *
 722  *  - tries to allocate the UAR with the most appropriate memory
 723  *    mapping type from the ones supported by the host
 724  *
 725  *  - tries to allocate the UAR with non-NULL base address
 726  *    OFED 5.0.x and Upstream rdma_core before v29 returned the NULL as
 727  *    UAR base address if UAR was not the first object in the UAR page.
 728  *    It caused the PMD failure and we should try to get another UAR
 729  *    till we get the first one with non-NULL base address returned.
 730  */
 731 static int
 732 mlx5_alloc_rxtx_uars(struct mlx5_dev_ctx_shared *sh,
 733                      const struct mlx5_dev_config *config)
 734 {
 735         uint32_t uar_mapping, retry;
 736         int err = 0;
 737         void *base_addr;
 738
 739         for (retry = 0; retry < MLX5_ALLOC_UAR_RETRY; ++retry) {
 740 #ifdef MLX5DV_UAR_ALLOC_TYPE_NC
 741                 /* Control the mapping type according to the settings. */
 742                 uar_mapping = (config->dbnc == MLX5_TXDB_NCACHED) ?
 743                               MLX5DV_UAR_ALLOC_TYPE_NC :
 744                               MLX5DV_UAR_ALLOC_TYPE_BF;
 745 #else
 746                 RTE_SET_USED(config);
 747                 /*
 748                  * It seems we have no way to control the memory mapping type
 749                  * for the UAR, the default "Write-Combining" type is supposed.
 750                  * The UAR initialization on queue creation queries the
 751                  * actual mapping type done by Verbs/kernel and setups the
 752                  * PMD datapath accordingly.
 753                  */
 754                 uar_mapping = 0;
 755 #endif
 756                 sh->tx_uar = mlx5_glue->devx_alloc_uar(sh->ctx, uar_mapping);
 757 #ifdef MLX5DV_UAR_ALLOC_TYPE_NC
 758                 if (!sh->tx_uar &&
 759                     uar_mapping == MLX5DV_UAR_ALLOC_TYPE_BF) {
 760                         if (config->dbnc == MLX5_TXDB_CACHED ||
 761                             config->dbnc == MLX5_TXDB_HEURISTIC)
 762                                 DRV_LOG(WARNING, "Devarg tx_db_nc setting "
 763                                                  "is not supported by DevX");
 764                         /*
 765                          * In some environments like virtual machine
 766                          * the Write Combining mapped might be not supported
 767                          * and UAR allocation fails. We try "Non-Cached"
 768                          * mapping for the case. The tx_burst routines take
 769                          * the UAR mapping type into account on UAR setup
 770                          * on queue creation.
 771                          */
 772                         DRV_LOG(WARNING, "Failed to allocate Tx DevX UAR (BF)");
 773                         uar_mapping = MLX5DV_UAR_ALLOC_TYPE_NC;
 774                         sh->tx_uar = mlx5_glue->devx_alloc_uar
 775                                                         (sh->ctx, uar_mapping);
 776                 } else if (!sh->tx_uar &&
 777                            uar_mapping == MLX5DV_UAR_ALLOC_TYPE_NC) {
 778                         if (config->dbnc == MLX5_TXDB_NCACHED)
 779                                 DRV_LOG(WARNING, "Devarg tx_db_nc settings "
 780                                                  "is not supported by DevX");
 781                         /*
 782                          * If Verbs/kernel does not support "Non-Cached"
 783                          * try the "Write-Combining".
 784                          */
 785                         DRV_LOG(WARNING, "Failed to allocate Tx DevX UAR (NC)");
 786                         uar_mapping = MLX5DV_UAR_ALLOC_TYPE_BF;
 787                         sh->tx_uar = mlx5_glue->devx_alloc_uar
 788                                                         (sh->ctx, uar_mapping);
 789                 }
 790 #endif
 791                 if (!sh->tx_uar) {
 792                         DRV_LOG(ERR, "Failed to allocate Tx DevX UAR (BF/NC)");
 793                         err = ENOMEM;
 794                         goto exit;
 795                 }
 796                 base_addr = mlx5_os_get_devx_uar_base_addr(sh->tx_uar);
 797                 if (base_addr)
 798                         break;
 799                 /*
 800                  * The UARs are allocated by rdma_core within the
 801                  * IB device context, on context closure all UARs
 802                  * will be freed, should be no memory/object leakage.
 803                  */
 804                 DRV_LOG(WARNING, "Retrying to allocate Tx DevX UAR");
 805                 sh->tx_uar = NULL;
 806         }
 807         /* Check whether we finally succeeded with valid UAR allocation. */
 808         if (!sh->tx_uar) {
 809                 DRV_LOG(ERR, "Failed to allocate Tx DevX UAR (NULL base)");
 810                 err = ENOMEM;
 811                 goto exit;
 812         }
 813         for (retry = 0; retry < MLX5_ALLOC_UAR_RETRY; ++retry) {
 814                 uar_mapping = 0;
 815                 sh->devx_rx_uar = mlx5_glue->devx_alloc_uar
 816                                                         (sh->ctx, uar_mapping);
 817 #ifdef MLX5DV_UAR_ALLOC_TYPE_NC
 818                 if (!sh->devx_rx_uar &&
 819                     uar_mapping == MLX5DV_UAR_ALLOC_TYPE_BF) {
 820                         /*
 821                          * Rx UAR is used to control interrupts only,
 822                          * should be no datapath noticeable impact,
 823                          * can try "Non-Cached" mapping safely.
 824                          */
 825                         DRV_LOG(WARNING, "Failed to allocate Rx DevX UAR (BF)");
 826                         uar_mapping = MLX5DV_UAR_ALLOC_TYPE_NC;
 827                         sh->devx_rx_uar = mlx5_glue->devx_alloc_uar
 828                                                         (sh->ctx, uar_mapping);
 829                 }
 830 #endif
 831                 if (!sh->devx_rx_uar) {
 832                         DRV_LOG(ERR, "Failed to allocate Rx DevX UAR (BF/NC)");
 833                         err = ENOMEM;
 834                         goto exit;
 835                 }
 836                 base_addr = mlx5_os_get_devx_uar_base_addr(sh->devx_rx_uar);
 837                 if (base_addr)
 838                         break;
 839                 /*
 840                  * The UARs are allocated by rdma_core within the
 841                  * IB device context, on context closure all UARs
 842                  * will be freed, should be no memory/object leakage.
 843                  */
 844                 DRV_LOG(WARNING, "Retrying to allocate Rx DevX UAR");
 845                 sh->devx_rx_uar = NULL;
 846         }
 847         /* Check whether we finally succeeded with valid UAR allocation. */
 848         if (!sh->devx_rx_uar) {
 849                 DRV_LOG(ERR, "Failed to allocate Rx DevX UAR (NULL base)");
 850                 err = ENOMEM;
 851         }
 852 exit:
 853         return err;
 854 }
 855
 856 /**
 857  * Allocate shared device context. If there is multiport device the
 858  * master and representors will share this context, if there is single
 859  * port dedicated device, the context will be used by only given
 860  * port due to unification.
 861  *
 862  * Routine first searches the context for the specified device name,
 863  * if found the shared context assumed and reference counter is incremented.
 864  * If no context found the new one is created and initialized with specified
 865  * device context and parameters.
 866  *
 867  * @param[in] spawn
 868  *   Pointer to the device attributes (name, port, etc).
 869  * @param[in] config
 870  *   Pointer to device configuration structure.
 871  *
 872  * @return
 873  *   Pointer to mlx5_dev_ctx_shared object on success,
 874  *   otherwise NULL and rte_errno is set.
 875  */
 876 struct mlx5_dev_ctx_shared *
 877 mlx5_alloc_shared_dev_ctx(const struct mlx5_dev_spawn_data *spawn,
 878                            const struct mlx5_dev_config *config)
 879 {
 880         struct mlx5_dev_ctx_shared *sh;
 881         int err = 0;
 882         uint32_t i;
 883         struct mlx5_devx_tis_attr tis_attr = { 0 };
 884
 885         MLX5_ASSERT(spawn);
 886         /* Secondary process should not create the shared context. */
 887         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
 888         pthread_mutex_lock(&mlx5_dev_ctx_list_mutex);
 889         /* Search for IB context by device name. */
 890         LIST_FOREACH(sh, &mlx5_dev_ctx_list, next) {
 891                 if (!strcmp(sh->ibdev_name,
 892                         mlx5_os_get_dev_device_name(spawn->phys_dev))) {
 893                         sh->refcnt++;
 894                         goto exit;
 895                 }
 896         }
 897         /* No device found, we have to create new shared context. */
 898         MLX5_ASSERT(spawn->max_port);
 899         sh = mlx5_malloc(MLX5_MEM_ZERO | MLX5_MEM_RTE,
 900                          sizeof(struct mlx5_dev_ctx_shared) +
 901                          spawn->max_port *
 902                          sizeof(struct mlx5_dev_shared_port),
 903                          RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
 904         if (!sh) {
 905                 DRV_LOG(ERR, "shared context allocation failure");
 906                 rte_errno  = ENOMEM;
 907                 goto exit;
 908         }
 909         err = mlx5_os_open_device(spawn, config, sh);
 910         if (!sh->ctx)
 911                 goto error;
 912         err = mlx5_os_get_dev_attr(sh->ctx, &sh->device_attr);
 913         if (err) {
 914                 DRV_LOG(DEBUG, "mlx5_os_get_dev_attr() failed");
 915                 goto error;
 916         }
 917         sh->refcnt = 1;
 918         sh->bond_dev = UINT16_MAX;
 919         sh->max_port = spawn->max_port;
 920         strncpy(sh->ibdev_name, mlx5_os_get_ctx_device_name(sh->ctx),
 921                 sizeof(sh->ibdev_name) - 1);
 922         strncpy(sh->ibdev_path, mlx5_os_get_ctx_device_path(sh->ctx),
 923                 sizeof(sh->ibdev_path) - 1);
 924         /*
 925          * Setting port_id to max unallowed value means
 926          * there is no interrupt subhandler installed for
 927          * the given port index i.
 928          */
 929         for (i = 0; i < sh->max_port; i++) {
 930                 sh->port[i].ih_port_id = RTE_MAX_ETHPORTS;
 931                 sh->port[i].devx_ih_port_id = RTE_MAX_ETHPORTS;
 932         }
 933         sh->pd = mlx5_glue->alloc_pd(sh->ctx);
 934         if (sh->pd == NULL) {
 935                 DRV_LOG(ERR, "PD allocation failure");
 936                 err = ENOMEM;
 937                 goto error;
 938         }
 939         if (sh->devx) {
 940                 /* Query the EQN for this core. */
 941                 err = mlx5_glue->devx_query_eqn(sh->ctx, 0, &sh->eqn);
 942                 if (err) {
 943                         rte_errno = errno;
 944                         DRV_LOG(ERR, "Failed to query event queue number %d.",
 945                                 rte_errno);
 946                         goto error;
 947                 }
 948                 err = mlx5_os_get_pdn(sh->pd, &sh->pdn);
 949                 if (err) {
 950                         DRV_LOG(ERR, "Fail to extract pdn from PD");
 951                         goto error;
 952                 }
 953                 sh->td = mlx5_devx_cmd_create_td(sh->ctx);
 954                 if (!sh->td) {
 955                         DRV_LOG(ERR, "TD allocation failure");
 956                         err = ENOMEM;
 957                         goto error;
 958                 }
 959                 tis_attr.transport_domain = sh->td->id;
 960                 sh->tis = mlx5_devx_cmd_create_tis(sh->ctx, &tis_attr);
 961                 if (!sh->tis) {
 962                         DRV_LOG(ERR, "TIS allocation failure");
 963                         err = ENOMEM;
 964                         goto error;
 965                 }
 966                 err = mlx5_alloc_rxtx_uars(sh, config);
 967                 if (err)
 968                         goto error;
 969                 MLX5_ASSERT(sh->tx_uar);
 970                 MLX5_ASSERT(mlx5_os_get_devx_uar_base_addr(sh->tx_uar));
 971
 972                 MLX5_ASSERT(sh->devx_rx_uar);
 973                 MLX5_ASSERT(mlx5_os_get_devx_uar_base_addr(sh->devx_rx_uar));
 974         }
 975 #ifndef RTE_ARCH_64
 976         /* Initialize UAR access locks for 32bit implementations. */
 977         rte_spinlock_init(&sh->uar_lock_cq);
 978         for (i = 0; i < MLX5_UAR_PAGE_NUM_MAX; i++)
 979                 rte_spinlock_init(&sh->uar_lock[i]);
 980 #endif
 981         /*
 982          * Once the device is added to the list of memory event
 983          * callback, its global MR cache table cannot be expanded
 984          * on the fly because of deadlock. If it overflows, lookup
 985          * should be done by searching MR list linearly, which is slow.
 986          *
 987          * At this point the device is not added to the memory
 988          * event list yet, context is just being created.
 989          */
 990         err = mlx5_mr_btree_init(&sh->share_cache.cache,
 991                                  MLX5_MR_BTREE_CACHE_N * 2,
 992                                  spawn->pci_dev->device.numa_node);
 993         if (err) {
 994                 err = rte_errno;
 995                 goto error;
 996         }
 997         mlx5_os_set_reg_mr_cb(&sh->share_cache.reg_mr_cb,
 998                               &sh->share_cache.dereg_mr_cb);
 999         mlx5_os_dev_shared_handler_install(sh);
1000         sh->cnt_id_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
1001         if (!sh->cnt_id_tbl) {
1002                 err = rte_errno;
1003                 goto error;
1004         }
1005         mlx5_flow_aging_init(sh);
1006         mlx5_flow_counters_mng_init(sh);
1007         mlx5_flow_ipool_create(sh, config);
1008         /* Add device to memory callback list. */
1009         rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
1010         LIST_INSERT_HEAD(&mlx5_shared_data->mem_event_cb_list,
1011                          sh, mem_event_cb);
1012         rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
1013         /* Add context to the global device list. */
1014         LIST_INSERT_HEAD(&mlx5_dev_ctx_list, sh, next);
1015 exit:
1016         pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
1017         return sh;
1018 error:
1019         pthread_mutex_destroy(&sh->txpp.mutex);
1020         pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
1021         MLX5_ASSERT(sh);
1022         if (sh->cnt_id_tbl)
1023                 mlx5_l3t_destroy(sh->cnt_id_tbl);
1024         if (sh->tis)
1025                 claim_zero(mlx5_devx_cmd_destroy(sh->tis));
1026         if (sh->td)
1027                 claim_zero(mlx5_devx_cmd_destroy(sh->td));
1028         if (sh->devx_rx_uar)
1029                 mlx5_glue->devx_free_uar(sh->devx_rx_uar);
1030         if (sh->tx_uar)
1031                 mlx5_glue->devx_free_uar(sh->tx_uar);
1032         if (sh->pd)
1033                 claim_zero(mlx5_glue->dealloc_pd(sh->pd));
1034         if (sh->ctx)
1035                 claim_zero(mlx5_glue->close_device(sh->ctx));
1036         mlx5_free(sh);
1037         MLX5_ASSERT(err > 0);
1038         rte_errno = err;
1039         return NULL;
1040 }
1041
1042 /**
1043  * Free shared IB device context. Decrement counter and if zero free
1044  * all allocated resources and close handles.
1045  *
1046  * @param[in] sh
1047  *   Pointer to mlx5_dev_ctx_shared object to free
1048  */
1049 void
1050 mlx5_free_shared_dev_ctx(struct mlx5_dev_ctx_shared *sh)
1051 {
1052         pthread_mutex_lock(&mlx5_dev_ctx_list_mutex);
1053 #ifdef RTE_LIBRTE_MLX5_DEBUG
1054         /* Check the object presence in the list. */
1055         struct mlx5_dev_ctx_shared *lctx;
1056
1057         LIST_FOREACH(lctx, &mlx5_dev_ctx_list, next)
1058                 if (lctx == sh)
1059                         break;
1060         MLX5_ASSERT(lctx);
1061         if (lctx != sh) {
1062                 DRV_LOG(ERR, "Freeing non-existing shared IB context");
1063                 goto exit;
1064         }
1065 #endif
1066         MLX5_ASSERT(sh);
1067         MLX5_ASSERT(sh->refcnt);
1068         /* Secondary process should not free the shared context. */
1069         MLX5_ASSERT(rte_eal_process_type() == RTE_PROC_PRIMARY);
1070         if (--sh->refcnt)
1071                 goto exit;
1072         /* Remove from memory callback device list. */
1073         rte_rwlock_write_lock(&mlx5_shared_data->mem_event_rwlock);
1074         LIST_REMOVE(sh, mem_event_cb);
1075         rte_rwlock_write_unlock(&mlx5_shared_data->mem_event_rwlock);
1076         /* Release created Memory Regions. */
1077         mlx5_mr_release_cache(&sh->share_cache);
1078         /* Remove context from the global device list. */
1079         LIST_REMOVE(sh, next);
1080         pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
1081         /*
1082          *  Ensure there is no async event handler installed.
1083          *  Only primary process handles async device events.
1084          **/
1085         mlx5_flow_counters_mng_close(sh);
1086         if (sh->aso_age_mng) {
1087                 mlx5_flow_aso_age_mng_close(sh);
1088                 sh->aso_age_mng = NULL;
1089         }
1090         mlx5_flow_ipool_destroy(sh);
1091         mlx5_os_dev_shared_handler_uninstall(sh);
1092         if (sh->cnt_id_tbl) {
1093                 mlx5_l3t_destroy(sh->cnt_id_tbl);
1094                 sh->cnt_id_tbl = NULL;
1095         }
1096         if (sh->tx_uar) {
1097                 mlx5_glue->devx_free_uar(sh->tx_uar);
1098                 sh->tx_uar = NULL;
1099         }
1100         if (sh->pd)
1101                 claim_zero(mlx5_glue->dealloc_pd(sh->pd));
1102         if (sh->tis)
1103                 claim_zero(mlx5_devx_cmd_destroy(sh->tis));
1104         if (sh->td)
1105                 claim_zero(mlx5_devx_cmd_destroy(sh->td));
1106         if (sh->devx_rx_uar)
1107                 mlx5_glue->devx_free_uar(sh->devx_rx_uar);
1108         if (sh->ctx)
1109                 claim_zero(mlx5_glue->close_device(sh->ctx));
1110         pthread_mutex_destroy(&sh->txpp.mutex);
1111         mlx5_free(sh);
1112         return;
1113 exit:
1114         pthread_mutex_unlock(&mlx5_dev_ctx_list_mutex);
1115 }
1116
1117 /**
1118  * Destroy table hash list.
1119  *
1120  * @param[in] priv
1121  *   Pointer to the private device data structure.
1122  */
1123 void
1124 mlx5_free_table_hash_list(struct mlx5_priv *priv)
1125 {
1126         struct mlx5_dev_ctx_shared *sh = priv->sh;
1127
1128         if (!sh->flow_tbls)
1129                 return;
1130         mlx5_hlist_destroy(sh->flow_tbls);
1131 }
1132
1133 /**
1134  * Initialize flow table hash list and create the root tables entry
1135  * for each domain.
1136  *
1137  * @param[in] priv
1138  *   Pointer to the private device data structure.
1139  *
1140  * @return
1141  *   Zero on success, positive error code otherwise.
1142  */
1143 int
1144 mlx5_alloc_table_hash_list(struct mlx5_priv *priv __rte_unused)
1145 {
1146         int err = 0;
1147         /* Tables are only used in DV and DR modes. */
1148 #ifdef HAVE_IBV_FLOW_DV_SUPPORT
1149         struct mlx5_dev_ctx_shared *sh = priv->sh;
1150         char s[MLX5_HLIST_NAMESIZE];
1151
1152         MLX5_ASSERT(sh);
1153         snprintf(s, sizeof(s), "%s_flow_table", priv->sh->ibdev_name);
1154         sh->flow_tbls = mlx5_hlist_create(s, MLX5_FLOW_TABLE_HLIST_ARRAY_SIZE,
1155                                           0, 0, flow_dv_tbl_create_cb, NULL,
1156                                           flow_dv_tbl_remove_cb);
1157         if (!sh->flow_tbls) {
1158                 DRV_LOG(ERR, "flow tables with hash creation failed.");
1159                 err = ENOMEM;
1160                 return err;
1161         }
1162         sh->flow_tbls->ctx = sh;
1163 #ifndef HAVE_MLX5DV_DR
1164         struct rte_flow_error error;
1165         struct rte_eth_dev *dev = &rte_eth_devices[priv->dev_data->port_id];
1166
1167         /*
1168          * In case we have not DR support, the zero tables should be created
1169          * because DV expect to see them even if they cannot be created by
1170          * RDMA-CORE.
1171          */
1172         if (!flow_dv_tbl_resource_get(dev, 0, 0, 0, 0, NULL, 0, 1, &error) ||
1173             !flow_dv_tbl_resource_get(dev, 0, 1, 0, 0, NULL, 0, 1, &error) ||
1174             !flow_dv_tbl_resource_get(dev, 0, 0, 1, 0, NULL, 0, 1, &error)) {
1175                 err = ENOMEM;
1176                 goto error;
1177         }
1178         return err;
1179 error:
1180         mlx5_free_table_hash_list(priv);
1181 #endif /* HAVE_MLX5DV_DR */
1182 #endif
1183         return err;
1184 }
1185
1186 /**
1187  * Retrieve integer value from environment variable.
1188  *
1189  * @param[in] name
1190  *   Environment variable name.
1191  *
1192  * @return
1193  *   Integer value, 0 if the variable is not set.
1194  */
1195 int
1196 mlx5_getenv_int(const char *name)
1197 {
1198         const char *val = getenv(name);
1199
1200         if (val == NULL)
1201                 return 0;
1202         return atoi(val);
1203 }
1204
1205 /**
1206  * DPDK callback to add udp tunnel port
1207  *
1208  * @param[in] dev
1209  *   A pointer to eth_dev
1210  * @param[in] udp_tunnel
1211  *   A pointer to udp tunnel
1212  *
1213  * @return
1214  *   0 on valid udp ports and tunnels, -ENOTSUP otherwise.
1215  */
1216 int
1217 mlx5_udp_tunnel_port_add(struct rte_eth_dev *dev __rte_unused,
1218                          struct rte_eth_udp_tunnel *udp_tunnel)
1219 {
1220         MLX5_ASSERT(udp_tunnel != NULL);
1221         if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN &&
1222             udp_tunnel->udp_port == 4789)
1223                 return 0;
1224         if (udp_tunnel->prot_type == RTE_TUNNEL_TYPE_VXLAN_GPE &&
1225             udp_tunnel->udp_port == 4790)
1226                 return 0;
1227         return -ENOTSUP;
1228 }
1229
1230 /**
1231  * Initialize process private data structure.
1232  *
1233  * @param dev
1234  *   Pointer to Ethernet device structure.
1235  *
1236  * @return
1237  *   0 on success, a negative errno value otherwise and rte_errno is set.
1238  */
1239 int
1240 mlx5_proc_priv_init(struct rte_eth_dev *dev)
1241 {
1242         struct mlx5_priv *priv = dev->data->dev_private;
1243         struct mlx5_proc_priv *ppriv;
1244         size_t ppriv_size;
1245
1246         /*
1247          * UAR register table follows the process private structure. BlueFlame
1248          * registers for Tx queues are stored in the table.
1249          */
1250         ppriv_size =
1251                 sizeof(struct mlx5_proc_priv) + priv->txqs_n * sizeof(void *);
1252         ppriv = mlx5_malloc(MLX5_MEM_RTE, ppriv_size, RTE_CACHE_LINE_SIZE,
1253                             dev->device->numa_node);
1254         if (!ppriv) {
1255                 rte_errno = ENOMEM;
1256                 return -rte_errno;
1257         }
1258         ppriv->uar_table_sz = ppriv_size;
1259         dev->process_private = ppriv;
1260         return 0;
1261 }
1262
1263 /**
1264  * Un-initialize process private data structure.
1265  *
1266  * @param dev
1267  *   Pointer to Ethernet device structure.
1268  */
1269 static void
1270 mlx5_proc_priv_uninit(struct rte_eth_dev *dev)
1271 {
1272         if (!dev->process_private)
1273                 return;
1274         mlx5_free(dev->process_private);
1275         dev->process_private = NULL;
1276 }
1277
1278 /**
1279  * DPDK callback to close the device.
1280  *
1281  * Destroy all queues and objects, free memory.
1282  *
1283  * @param dev
1284  *   Pointer to Ethernet device structure.
1285  */
1286 int
1287 mlx5_dev_close(struct rte_eth_dev *dev)
1288 {
1289         struct mlx5_priv *priv = dev->data->dev_private;
1290         unsigned int i;
1291         int ret;
1292
1293         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
1294                 /* Check if process_private released. */
1295                 if (!dev->process_private)
1296                         return 0;
1297                 mlx5_tx_uar_uninit_secondary(dev);
1298                 mlx5_proc_priv_uninit(dev);
1299                 rte_eth_dev_release_port(dev);
1300                 return 0;
1301         }
1302         if (!priv->sh)
1303                 return 0;
1304         DRV_LOG(DEBUG, "port %u closing device \"%s\"",
1305                 dev->data->port_id,
1306                 ((priv->sh->ctx != NULL) ?
1307                 mlx5_os_get_ctx_device_name(priv->sh->ctx) : ""));
1308         /*
1309          * If default mreg copy action is removed at the stop stage,
1310          * the search will return none and nothing will be done anymore.
1311          */
1312         mlx5_flow_stop_default(dev);
1313         mlx5_traffic_disable(dev);
1314         /*
1315          * If all the flows are already flushed in the device stop stage,
1316          * then this will return directly without any action.
1317          */
1318         mlx5_flow_list_flush(dev, &priv->flows, true);
1319         mlx5_shared_action_flush(dev);
1320         mlx5_flow_meter_flush(dev, NULL);
1321         /* Prevent crashes when queues are still in use. */
1322         dev->rx_pkt_burst = removed_rx_burst;
1323         dev->tx_pkt_burst = removed_tx_burst;
1324         rte_wmb();
1325         /* Disable datapath on secondary process. */
1326         mlx5_mp_os_req_stop_rxtx(dev);
1327         /* Free the eCPRI flex parser resource. */
1328         mlx5_flex_parser_ecpri_release(dev);
1329         if (priv->rxqs != NULL) {
1330                 /* XXX race condition if mlx5_rx_burst() is still running. */
1331                 usleep(1000);
1332                 for (i = 0; (i != priv->rxqs_n); ++i)
1333                         mlx5_rxq_release(dev, i);
1334                 priv->rxqs_n = 0;
1335                 priv->rxqs = NULL;
1336         }
1337         if (priv->txqs != NULL) {
1338                 /* XXX race condition if mlx5_tx_burst() is still running. */
1339                 usleep(1000);
1340                 for (i = 0; (i != priv->txqs_n); ++i)
1341                         mlx5_txq_release(dev, i);
1342                 priv->txqs_n = 0;
1343                 priv->txqs = NULL;
1344         }
1345         mlx5_proc_priv_uninit(dev);
1346         if (priv->drop_queue.hrxq)
1347                 mlx5_drop_action_destroy(dev);
1348         if (priv->mreg_cp_tbl)
1349                 mlx5_hlist_destroy(priv->mreg_cp_tbl);
1350         mlx5_mprq_free_mp(dev);
1351         mlx5_os_free_shared_dr(priv);
1352         if (priv->rss_conf.rss_key != NULL)
1353                 mlx5_free(priv->rss_conf.rss_key);
1354         if (priv->reta_idx != NULL)
1355                 mlx5_free(priv->reta_idx);
1356         if (priv->config.vf)
1357                 mlx5_os_mac_addr_flush(dev);
1358         if (priv->nl_socket_route >= 0)
1359                 close(priv->nl_socket_route);
1360         if (priv->nl_socket_rdma >= 0)
1361                 close(priv->nl_socket_rdma);
1362         if (priv->vmwa_context)
1363                 mlx5_vlan_vmwa_exit(priv->vmwa_context);
1364         ret = mlx5_hrxq_verify(dev);
1365         if (ret)
1366                 DRV_LOG(WARNING, "port %u some hash Rx queue still remain",
1367                         dev->data->port_id);
1368         ret = mlx5_ind_table_obj_verify(dev);
1369         if (ret)
1370                 DRV_LOG(WARNING, "port %u some indirection table still remain",
1371                         dev->data->port_id);
1372         ret = mlx5_rxq_obj_verify(dev);
1373         if (ret)
1374                 DRV_LOG(WARNING, "port %u some Rx queue objects still remain",
1375                         dev->data->port_id);
1376         ret = mlx5_rxq_verify(dev);
1377         if (ret)
1378                 DRV_LOG(WARNING, "port %u some Rx queues still remain",
1379                         dev->data->port_id);
1380         ret = mlx5_txq_obj_verify(dev);
1381         if (ret)
1382                 DRV_LOG(WARNING, "port %u some Verbs Tx queue still remain",
1383                         dev->data->port_id);
1384         ret = mlx5_txq_verify(dev);
1385         if (ret)
1386                 DRV_LOG(WARNING, "port %u some Tx queues still remain",
1387                         dev->data->port_id);
1388         ret = mlx5_flow_verify(dev);
1389         if (ret)
1390                 DRV_LOG(WARNING, "port %u some flows still remain",
1391                         dev->data->port_id);
1392         mlx5_cache_list_destroy(&priv->hrxqs);
1393         /*
1394          * Free the shared context in last turn, because the cleanup
1395          * routines above may use some shared fields, like
1396          * mlx5_os_mac_addr_flush() uses ibdev_path for retrieveing
1397          * ifindex if Netlink fails.
1398          */
1399         mlx5_free_shared_dev_ctx(priv->sh);
1400         if (priv->domain_id != RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID) {
1401                 unsigned int c = 0;
1402                 uint16_t port_id;
1403
1404                 MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
1405                         struct mlx5_priv *opriv =
1406                                 rte_eth_devices[port_id].data->dev_private;
1407
1408                         if (!opriv ||
1409                             opriv->domain_id != priv->domain_id ||
1410                             &rte_eth_devices[port_id] == dev)
1411                                 continue;
1412                         ++c;
1413                         break;
1414                 }
1415                 if (!c)
1416                         claim_zero(rte_eth_switch_domain_free(priv->domain_id));
1417         }
1418         memset(priv, 0, sizeof(*priv));
1419         priv->domain_id = RTE_ETH_DEV_SWITCH_DOMAIN_ID_INVALID;
1420         /*
1421          * Reset mac_addrs to NULL such that it is not freed as part of
1422          * rte_eth_dev_release_port(). mac_addrs is part of dev_private so
1423          * it is freed when dev_private is freed.
1424          */
1425         dev->data->mac_addrs = NULL;
1426         return 0;
1427 }
1428
1429 /**
1430  * Verify and store value for device argument.
1431  *
1432  * @param[in] key
1433  *   Key argument to verify.
1434  * @param[in] val
1435  *   Value associated with key.
1436  * @param opaque
1437  *   User data.
1438  *
1439  * @return
1440  *   0 on success, a negative errno value otherwise and rte_errno is set.
1441  */
1442 static int
1443 mlx5_args_check(const char *key, const char *val, void *opaque)
1444 {
1445         struct mlx5_dev_config *config = opaque;
1446         unsigned long mod;
1447         signed long tmp;
1448
1449         /* No-op, port representors are processed in mlx5_dev_spawn(). */
1450         if (!strcmp(MLX5_REPRESENTOR, key))
1451                 return 0;
1452         errno = 0;
1453         tmp = strtol(val, NULL, 0);
1454         if (errno) {
1455                 rte_errno = errno;
1456                 DRV_LOG(WARNING, "%s: \"%s\" is not a valid integer", key, val);
1457                 return -rte_errno;
1458         }
1459         if (tmp < 0 && strcmp(MLX5_TX_PP, key) && strcmp(MLX5_TX_SKEW, key)) {
1460                 /* Negative values are acceptable for some keys only. */
1461                 rte_errno = EINVAL;
1462                 DRV_LOG(WARNING, "%s: invalid negative value \"%s\"", key, val);
1463                 return -rte_errno;
1464         }
1465         mod = tmp >= 0 ? tmp : -tmp;
1466         if (strcmp(MLX5_RXQ_CQE_COMP_EN, key) == 0) {
1467                 if (tmp > MLX5_CQE_RESP_FORMAT_L34H_STRIDX) {
1468                         DRV_LOG(ERR, "invalid CQE compression "
1469                                      "format parameter");
1470                         rte_errno = EINVAL;
1471                         return -rte_errno;
1472                 }
1473                 config->cqe_comp = !!tmp;
1474                 config->cqe_comp_fmt = tmp;
1475         } else if (strcmp(MLX5_RXQ_CQE_PAD_EN, key) == 0) {
1476                 config->cqe_pad = !!tmp;
1477         } else if (strcmp(MLX5_RXQ_PKT_PAD_EN, key) == 0) {
1478                 config->hw_padding = !!tmp;
1479         } else if (strcmp(MLX5_RX_MPRQ_EN, key) == 0) {
1480                 config->mprq.enabled = !!tmp;
1481         } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_NUM, key) == 0) {
1482                 config->mprq.stride_num_n = tmp;
1483         } else if (strcmp(MLX5_RX_MPRQ_LOG_STRIDE_SIZE, key) == 0) {
1484                 config->mprq.stride_size_n = tmp;
1485         } else if (strcmp(MLX5_RX_MPRQ_MAX_MEMCPY_LEN, key) == 0) {
1486                 config->mprq.max_memcpy_len = tmp;
1487         } else if (strcmp(MLX5_RXQS_MIN_MPRQ, key) == 0) {
1488                 config->mprq.min_rxqs_num = tmp;
1489         } else if (strcmp(MLX5_TXQ_INLINE, key) == 0) {
1490                 DRV_LOG(WARNING, "%s: deprecated parameter,"
1491                                  " converted to txq_inline_max", key);
1492                 config->txq_inline_max = tmp;
1493         } else if (strcmp(MLX5_TXQ_INLINE_MAX, key) == 0) {
1494                 config->txq_inline_max = tmp;
1495         } else if (strcmp(MLX5_TXQ_INLINE_MIN, key) == 0) {
1496                 config->txq_inline_min = tmp;
1497         } else if (strcmp(MLX5_TXQ_INLINE_MPW, key) == 0) {
1498                 config->txq_inline_mpw = tmp;
1499         } else if (strcmp(MLX5_TXQS_MIN_INLINE, key) == 0) {
1500                 config->txqs_inline = tmp;
1501         } else if (strcmp(MLX5_TXQS_MAX_VEC, key) == 0) {
1502                 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1503         } else if (strcmp(MLX5_TXQ_MPW_EN, key) == 0) {
1504                 config->mps = !!tmp;
1505         } else if (strcmp(MLX5_TX_DB_NC, key) == 0) {
1506                 if (tmp != MLX5_TXDB_CACHED &&
1507                     tmp != MLX5_TXDB_NCACHED &&
1508                     tmp != MLX5_TXDB_HEURISTIC) {
1509                         DRV_LOG(ERR, "invalid Tx doorbell "
1510                                      "mapping parameter");
1511                         rte_errno = EINVAL;
1512                         return -rte_errno;
1513                 }
1514                 config->dbnc = tmp;
1515         } else if (strcmp(MLX5_TXQ_MPW_HDR_DSEG_EN, key) == 0) {
1516                 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1517         } else if (strcmp(MLX5_TXQ_MAX_INLINE_LEN, key) == 0) {
1518                 DRV_LOG(WARNING, "%s: deprecated parameter,"
1519                                  " converted to txq_inline_mpw", key);
1520                 config->txq_inline_mpw = tmp;
1521         } else if (strcmp(MLX5_TX_VEC_EN, key) == 0) {
1522                 DRV_LOG(WARNING, "%s: deprecated parameter, ignored", key);
1523         } else if (strcmp(MLX5_TX_PP, key) == 0) {
1524                 if (!mod) {
1525                         DRV_LOG(ERR, "Zero Tx packet pacing parameter");
1526                         rte_errno = EINVAL;
1527                         return -rte_errno;
1528                 }
1529                 config->tx_pp = tmp;
1530         } else if (strcmp(MLX5_TX_SKEW, key) == 0) {
1531                 config->tx_skew = tmp;
1532         } else if (strcmp(MLX5_RX_VEC_EN, key) == 0) {
1533                 config->rx_vec_en = !!tmp;
1534         } else if (strcmp(MLX5_L3_VXLAN_EN, key) == 0) {
1535                 config->l3_vxlan_en = !!tmp;
1536         } else if (strcmp(MLX5_VF_NL_EN, key) == 0) {
1537                 config->vf_nl_en = !!tmp;
1538         } else if (strcmp(MLX5_DV_ESW_EN, key) == 0) {
1539                 config->dv_esw_en = !!tmp;
1540         } else if (strcmp(MLX5_DV_FLOW_EN, key) == 0) {
1541                 config->dv_flow_en = !!tmp;
1542         } else if (strcmp(MLX5_DV_XMETA_EN, key) == 0) {
1543                 if (tmp != MLX5_XMETA_MODE_LEGACY &&
1544                     tmp != MLX5_XMETA_MODE_META16 &&
1545                     tmp != MLX5_XMETA_MODE_META32 &&
1546                     tmp != MLX5_XMETA_MODE_MISS_INFO) {
1547                         DRV_LOG(ERR, "invalid extensive "
1548                                      "metadata parameter");
1549                         rte_errno = EINVAL;
1550                         return -rte_errno;
1551                 }
1552                 if (tmp != MLX5_XMETA_MODE_MISS_INFO)
1553                         config->dv_xmeta_en = tmp;
1554                 else
1555                         config->dv_miss_info = 1;
1556         } else if (strcmp(MLX5_LACP_BY_USER, key) == 0) {
1557                 config->lacp_by_user = !!tmp;
1558         } else if (strcmp(MLX5_MR_EXT_MEMSEG_EN, key) == 0) {
1559                 config->mr_ext_memseg_en = !!tmp;
1560         } else if (strcmp(MLX5_MAX_DUMP_FILES_NUM, key) == 0) {
1561                 config->max_dump_files_num = tmp;
1562         } else if (strcmp(MLX5_LRO_TIMEOUT_USEC, key) == 0) {
1563                 config->lro.timeout = tmp;
1564         } else if (strcmp(MLX5_CLASS_ARG_NAME, key) == 0) {
1565                 DRV_LOG(DEBUG, "class argument is %s.", val);
1566         } else if (strcmp(MLX5_HP_BUF_SIZE, key) == 0) {
1567                 config->log_hp_size = tmp;
1568         } else if (strcmp(MLX5_RECLAIM_MEM, key) == 0) {
1569                 if (tmp != MLX5_RCM_NONE &&
1570                     tmp != MLX5_RCM_LIGHT &&
1571                     tmp != MLX5_RCM_AGGR) {
1572                         DRV_LOG(ERR, "Unrecognize %s: \"%s\"", key, val);
1573                         rte_errno = EINVAL;
1574                         return -rte_errno;
1575                 }
1576                 config->reclaim_mode = tmp;
1577         } else if (strcmp(MLX5_SYS_MEM_EN, key) == 0) {
1578                 config->sys_mem_en = !!tmp;
1579         } else if (strcmp(MLX5_DECAP_EN, key) == 0) {
1580                 config->decap_en = !!tmp;
1581         } else {
1582                 DRV_LOG(WARNING, "%s: unknown parameter", key);
1583                 rte_errno = EINVAL;
1584                 return -rte_errno;
1585         }
1586         return 0;
1587 }
1588
1589 /**
1590  * Parse device parameters.
1591  *
1592  * @param config
1593  *   Pointer to device configuration structure.
1594  * @param devargs
1595  *   Device arguments structure.
1596  *
1597  * @return
1598  *   0 on success, a negative errno value otherwise and rte_errno is set.
1599  */
1600 int
1601 mlx5_args(struct mlx5_dev_config *config, struct rte_devargs *devargs)
1602 {
1603         const char **params = (const char *[]){
1604                 MLX5_RXQ_CQE_COMP_EN,
1605                 MLX5_RXQ_CQE_PAD_EN,
1606                 MLX5_RXQ_PKT_PAD_EN,
1607                 MLX5_RX_MPRQ_EN,
1608                 MLX5_RX_MPRQ_LOG_STRIDE_NUM,
1609                 MLX5_RX_MPRQ_LOG_STRIDE_SIZE,
1610                 MLX5_RX_MPRQ_MAX_MEMCPY_LEN,
1611                 MLX5_RXQS_MIN_MPRQ,
1612                 MLX5_TXQ_INLINE,
1613                 MLX5_TXQ_INLINE_MIN,
1614                 MLX5_TXQ_INLINE_MAX,
1615                 MLX5_TXQ_INLINE_MPW,
1616                 MLX5_TXQS_MIN_INLINE,
1617                 MLX5_TXQS_MAX_VEC,
1618                 MLX5_TXQ_MPW_EN,
1619                 MLX5_TXQ_MPW_HDR_DSEG_EN,
1620                 MLX5_TXQ_MAX_INLINE_LEN,
1621                 MLX5_TX_DB_NC,
1622                 MLX5_TX_PP,
1623                 MLX5_TX_SKEW,
1624                 MLX5_TX_VEC_EN,
1625                 MLX5_RX_VEC_EN,
1626                 MLX5_L3_VXLAN_EN,
1627                 MLX5_VF_NL_EN,
1628                 MLX5_DV_ESW_EN,
1629                 MLX5_DV_FLOW_EN,
1630                 MLX5_DV_XMETA_EN,
1631                 MLX5_LACP_BY_USER,
1632                 MLX5_MR_EXT_MEMSEG_EN,
1633                 MLX5_REPRESENTOR,
1634                 MLX5_MAX_DUMP_FILES_NUM,
1635                 MLX5_LRO_TIMEOUT_USEC,
1636                 MLX5_CLASS_ARG_NAME,
1637                 MLX5_HP_BUF_SIZE,
1638                 MLX5_RECLAIM_MEM,
1639                 MLX5_SYS_MEM_EN,
1640                 MLX5_DECAP_EN,
1641                 NULL,
1642         };
1643         struct rte_kvargs *kvlist;
1644         int ret = 0;
1645         int i;
1646
1647         if (devargs == NULL)
1648                 return 0;
1649         /* Following UGLY cast is done to pass checkpatch. */
1650         kvlist = rte_kvargs_parse(devargs->args, params);
1651         if (kvlist == NULL) {
1652                 rte_errno = EINVAL;
1653                 return -rte_errno;
1654         }
1655         /* Process parameters. */
1656         for (i = 0; (params[i] != NULL); ++i) {
1657                 if (rte_kvargs_count(kvlist, params[i])) {
1658                         ret = rte_kvargs_process(kvlist, params[i],
1659                                                  mlx5_args_check, config);
1660                         if (ret) {
1661                                 rte_errno = EINVAL;
1662                                 rte_kvargs_free(kvlist);
1663                                 return -rte_errno;
1664                         }
1665                 }
1666         }
1667         rte_kvargs_free(kvlist);
1668         return 0;
1669 }
1670
1671 /**
1672  * Configures the minimal amount of data to inline into WQE
1673  * while sending packets.
1674  *
1675  * - the txq_inline_min has the maximal priority, if this
1676  *   key is specified in devargs
1677  * - if DevX is enabled the inline mode is queried from the
1678  *   device (HCA attributes and NIC vport context if needed).
1679  * - otherwise L2 mode (18 bytes) is assumed for ConnectX-4/4 Lx
1680  *   and none (0 bytes) for other NICs
1681  *
1682  * @param spawn
1683  *   Verbs device parameters (name, port, switch_info) to spawn.
1684  * @param config
1685  *   Device configuration parameters.
1686  */
1687 void
1688 mlx5_set_min_inline(struct mlx5_dev_spawn_data *spawn,
1689                     struct mlx5_dev_config *config)
1690 {
1691         if (config->txq_inline_min != MLX5_ARG_UNSET) {
1692                 /* Application defines size of inlined data explicitly. */
1693                 switch (spawn->pci_dev->id.device_id) {
1694                 case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
1695                 case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1696                         if (config->txq_inline_min <
1697                                        (int)MLX5_INLINE_HSIZE_L2) {
1698                                 DRV_LOG(DEBUG,
1699                                         "txq_inline_mix aligned to minimal"
1700                                         " ConnectX-4 required value %d",
1701                                         (int)MLX5_INLINE_HSIZE_L2);
1702                                 config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
1703                         }
1704                         break;
1705                 }
1706                 goto exit;
1707         }
1708         if (config->hca_attr.eth_net_offloads) {
1709                 /* We have DevX enabled, inline mode queried successfully. */
1710                 switch (config->hca_attr.wqe_inline_mode) {
1711                 case MLX5_CAP_INLINE_MODE_L2:
1712                         /* outer L2 header must be inlined. */
1713                         config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
1714                         goto exit;
1715                 case MLX5_CAP_INLINE_MODE_NOT_REQUIRED:
1716                         /* No inline data are required by NIC. */
1717                         config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
1718                         config->hw_vlan_insert =
1719                                 config->hca_attr.wqe_vlan_insert;
1720                         DRV_LOG(DEBUG, "Tx VLAN insertion is supported");
1721                         goto exit;
1722                 case MLX5_CAP_INLINE_MODE_VPORT_CONTEXT:
1723                         /* inline mode is defined by NIC vport context. */
1724                         if (!config->hca_attr.eth_virt)
1725                                 break;
1726                         switch (config->hca_attr.vport_inline_mode) {
1727                         case MLX5_INLINE_MODE_NONE:
1728                                 config->txq_inline_min =
1729                                         MLX5_INLINE_HSIZE_NONE;
1730                                 goto exit;
1731                         case MLX5_INLINE_MODE_L2:
1732                                 config->txq_inline_min =
1733                                         MLX5_INLINE_HSIZE_L2;
1734                                 goto exit;
1735                         case MLX5_INLINE_MODE_IP:
1736                                 config->txq_inline_min =
1737                                         MLX5_INLINE_HSIZE_L3;
1738                                 goto exit;
1739                         case MLX5_INLINE_MODE_TCP_UDP:
1740                                 config->txq_inline_min =
1741                                         MLX5_INLINE_HSIZE_L4;
1742                                 goto exit;
1743                         case MLX5_INLINE_MODE_INNER_L2:
1744                                 config->txq_inline_min =
1745                                         MLX5_INLINE_HSIZE_INNER_L2;
1746                                 goto exit;
1747                         case MLX5_INLINE_MODE_INNER_IP:
1748                                 config->txq_inline_min =
1749                                         MLX5_INLINE_HSIZE_INNER_L3;
1750                                 goto exit;
1751                         case MLX5_INLINE_MODE_INNER_TCP_UDP:
1752                                 config->txq_inline_min =
1753                                         MLX5_INLINE_HSIZE_INNER_L4;
1754                                 goto exit;
1755                         }
1756                 }
1757         }
1758         /*
1759          * We get here if we are unable to deduce
1760          * inline data size with DevX. Try PCI ID
1761          * to determine old NICs.
1762          */
1763         switch (spawn->pci_dev->id.device_id) {
1764         case PCI_DEVICE_ID_MELLANOX_CONNECTX4:
1765         case PCI_DEVICE_ID_MELLANOX_CONNECTX4VF:
1766         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LX:
1767         case PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF:
1768                 config->txq_inline_min = MLX5_INLINE_HSIZE_L2;
1769                 config->hw_vlan_insert = 0;
1770                 break;
1771         case PCI_DEVICE_ID_MELLANOX_CONNECTX5:
1772         case PCI_DEVICE_ID_MELLANOX_CONNECTX5VF:
1773         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EX:
1774         case PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF:
1775                 /*
1776                  * These NICs support VLAN insertion from WQE and
1777                  * report the wqe_vlan_insert flag. But there is the bug
1778                  * and PFC control may be broken, so disable feature.
1779                  */
1780                 config->hw_vlan_insert = 0;
1781                 config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
1782                 break;
1783         default:
1784                 config->txq_inline_min = MLX5_INLINE_HSIZE_NONE;
1785                 break;
1786         }
1787 exit:
1788         DRV_LOG(DEBUG, "min tx inline configured: %d", config->txq_inline_min);
1789 }
1790
1791 /**
1792  * Configures the metadata mask fields in the shared context.
1793  *
1794  * @param [in] dev
1795  *   Pointer to Ethernet device.
1796  */
1797 void
1798 mlx5_set_metadata_mask(struct rte_eth_dev *dev)
1799 {
1800         struct mlx5_priv *priv = dev->data->dev_private;
1801         struct mlx5_dev_ctx_shared *sh = priv->sh;
1802         uint32_t meta, mark, reg_c0;
1803
1804         reg_c0 = ~priv->vport_meta_mask;
1805         switch (priv->config.dv_xmeta_en) {
1806         case MLX5_XMETA_MODE_LEGACY:
1807                 meta = UINT32_MAX;
1808                 mark = MLX5_FLOW_MARK_MASK;
1809                 break;
1810         case MLX5_XMETA_MODE_META16:
1811                 meta = reg_c0 >> rte_bsf32(reg_c0);
1812                 mark = MLX5_FLOW_MARK_MASK;
1813                 break;
1814         case MLX5_XMETA_MODE_META32:
1815                 meta = UINT32_MAX;
1816                 mark = (reg_c0 >> rte_bsf32(reg_c0)) & MLX5_FLOW_MARK_MASK;
1817                 break;
1818         default:
1819                 meta = 0;
1820                 mark = 0;
1821                 MLX5_ASSERT(false);
1822                 break;
1823         }
1824         if (sh->dv_mark_mask && sh->dv_mark_mask != mark)
1825                 DRV_LOG(WARNING, "metadata MARK mask mismatche %08X:%08X",
1826                                  sh->dv_mark_mask, mark);
1827         else
1828                 sh->dv_mark_mask = mark;
1829         if (sh->dv_meta_mask && sh->dv_meta_mask != meta)
1830                 DRV_LOG(WARNING, "metadata META mask mismatche %08X:%08X",
1831                                  sh->dv_meta_mask, meta);
1832         else
1833                 sh->dv_meta_mask = meta;
1834         if (sh->dv_regc0_mask && sh->dv_regc0_mask != reg_c0)
1835                 DRV_LOG(WARNING, "metadata reg_c0 mask mismatche %08X:%08X",
1836                                  sh->dv_meta_mask, reg_c0);
1837         else
1838                 sh->dv_regc0_mask = reg_c0;
1839         DRV_LOG(DEBUG, "metadata mode %u", priv->config.dv_xmeta_en);
1840         DRV_LOG(DEBUG, "metadata MARK mask %08X", sh->dv_mark_mask);
1841         DRV_LOG(DEBUG, "metadata META mask %08X", sh->dv_meta_mask);
1842         DRV_LOG(DEBUG, "metadata reg_c0 mask %08X", sh->dv_regc0_mask);
1843 }
1844
1845 int
1846 rte_pmd_mlx5_get_dyn_flag_names(char *names[], unsigned int n)
1847 {
1848         static const char *const dynf_names[] = {
1849                 RTE_PMD_MLX5_FINE_GRANULARITY_INLINE,
1850                 RTE_MBUF_DYNFLAG_METADATA_NAME,
1851                 RTE_MBUF_DYNFLAG_TX_TIMESTAMP_NAME
1852         };
1853         unsigned int i;
1854
1855         if (n < RTE_DIM(dynf_names))
1856                 return -ENOMEM;
1857         for (i = 0; i < RTE_DIM(dynf_names); i++) {
1858                 if (names[i] == NULL)
1859                         return -EINVAL;
1860                 strcpy(names[i], dynf_names[i]);
1861         }
1862         return RTE_DIM(dynf_names);
1863 }
1864
1865 /**
1866  * Comparison callback to sort device data.
1867  *
1868  * This is meant to be used with qsort().
1869  *
1870  * @param a[in]
1871  *   Pointer to pointer to first data object.
1872  * @param b[in]
1873  *   Pointer to pointer to second data object.
1874  *
1875  * @return
1876  *   0 if both objects are equal, less than 0 if the first argument is less
1877  *   than the second, greater than 0 otherwise.
1878  */
1879 int
1880 mlx5_dev_check_sibling_config(struct mlx5_priv *priv,
1881                               struct mlx5_dev_config *config)
1882 {
1883         struct mlx5_dev_ctx_shared *sh = priv->sh;
1884         struct mlx5_dev_config *sh_conf = NULL;
1885         uint16_t port_id;
1886
1887         MLX5_ASSERT(sh);
1888         /* Nothing to compare for the single/first device. */
1889         if (sh->refcnt == 1)
1890                 return 0;
1891         /* Find the device with shared context. */
1892         MLX5_ETH_FOREACH_DEV(port_id, priv->pci_dev) {
1893                 struct mlx5_priv *opriv =
1894                         rte_eth_devices[port_id].data->dev_private;
1895
1896                 if (opriv && opriv != priv && opriv->sh == sh) {
1897                         sh_conf = &opriv->config;
1898                         break;
1899                 }
1900         }
1901         if (!sh_conf)
1902                 return 0;
1903         if (sh_conf->dv_flow_en ^ config->dv_flow_en) {
1904                 DRV_LOG(ERR, "\"dv_flow_en\" configuration mismatch"
1905                              " for shared %s context", sh->ibdev_name);
1906                 rte_errno = EINVAL;
1907                 return rte_errno;
1908         }
1909         if (sh_conf->dv_xmeta_en ^ config->dv_xmeta_en) {
1910                 DRV_LOG(ERR, "\"dv_xmeta_en\" configuration mismatch"
1911                              " for shared %s context", sh->ibdev_name);
1912                 rte_errno = EINVAL;
1913                 return rte_errno;
1914         }
1915         return 0;
1916 }
1917
1918 /**
1919  * Look for the ethernet device belonging to mlx5 driver.
1920  *
1921  * @param[in] port_id
1922  *   port_id to start looking for device.
1923  * @param[in] pci_dev
1924  *   Pointer to the hint PCI device. When device is being probed
1925  *   the its siblings (master and preceding representors might
1926  *   not have assigned driver yet (because the mlx5_os_pci_probe()
1927  *   is not completed yet, for this case match on hint PCI
1928  *   device may be used to detect sibling device.
1929  *
1930  * @return
1931  *   port_id of found device, RTE_MAX_ETHPORT if not found.
1932  */
1933 uint16_t
1934 mlx5_eth_find_next(uint16_t port_id, struct rte_pci_device *pci_dev)
1935 {
1936         while (port_id < RTE_MAX_ETHPORTS) {
1937                 struct rte_eth_dev *dev = &rte_eth_devices[port_id];
1938
1939                 if (dev->state != RTE_ETH_DEV_UNUSED &&
1940                     dev->device &&
1941                     (dev->device == &pci_dev->device ||
1942                      (dev->device->driver &&
1943                      dev->device->driver->name &&
1944                      !strcmp(dev->device->driver->name, MLX5_DRIVER_NAME))))
1945                         break;
1946                 port_id++;
1947         }
1948         if (port_id >= RTE_MAX_ETHPORTS)
1949                 return RTE_MAX_ETHPORTS;
1950         return port_id;
1951 }
1952
1953 /**
1954  * DPDK callback to remove a PCI device.
1955  *
1956  * This function removes all Ethernet devices belong to a given PCI device.
1957  *
1958  * @param[in] pci_dev
1959  *   Pointer to the PCI device.
1960  *
1961  * @return
1962  *   0 on success, the function cannot fail.
1963  */
1964 static int
1965 mlx5_pci_remove(struct rte_pci_device *pci_dev)
1966 {
1967         uint16_t port_id;
1968         int ret = 0;
1969
1970         RTE_ETH_FOREACH_DEV_OF(port_id, &pci_dev->device) {
1971                 /*
1972                  * mlx5_dev_close() is not registered to secondary process,
1973                  * call the close function explicitly for secondary process.
1974                  */
1975                 if (rte_eal_process_type() == RTE_PROC_SECONDARY)
1976                         ret |= mlx5_dev_close(&rte_eth_devices[port_id]);
1977                 else
1978                         ret |= rte_eth_dev_close(port_id);
1979         }
1980         return ret == 0 ? 0 : -EIO;
1981 }
1982
1983 static const struct rte_pci_id mlx5_pci_id_map[] = {
1984         {
1985                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
1986                                PCI_DEVICE_ID_MELLANOX_CONNECTX4)
1987         },
1988         {
1989                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
1990                                PCI_DEVICE_ID_MELLANOX_CONNECTX4VF)
1991         },
1992         {
1993                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
1994                                PCI_DEVICE_ID_MELLANOX_CONNECTX4LX)
1995         },
1996         {
1997                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
1998                                PCI_DEVICE_ID_MELLANOX_CONNECTX4LXVF)
1999         },
2000         {
2001                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2002                                PCI_DEVICE_ID_MELLANOX_CONNECTX5)
2003         },
2004         {
2005                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2006                                PCI_DEVICE_ID_MELLANOX_CONNECTX5VF)
2007         },
2008         {
2009                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2010                                PCI_DEVICE_ID_MELLANOX_CONNECTX5EX)
2011         },
2012         {
2013                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2014                                PCI_DEVICE_ID_MELLANOX_CONNECTX5EXVF)
2015         },
2016         {
2017                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2018                                PCI_DEVICE_ID_MELLANOX_CONNECTX5BF)
2019         },
2020         {
2021                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2022                                PCI_DEVICE_ID_MELLANOX_CONNECTX5BFVF)
2023         },
2024         {
2025                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2026                                 PCI_DEVICE_ID_MELLANOX_CONNECTX6)
2027         },
2028         {
2029                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2030                                 PCI_DEVICE_ID_MELLANOX_CONNECTX6VF)
2031         },
2032         {
2033                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2034                                 PCI_DEVICE_ID_MELLANOX_CONNECTX6DX)
2035         },
2036         {
2037                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2038                                 PCI_DEVICE_ID_MELLANOX_CONNECTXVF)
2039         },
2040         {
2041                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2042                                 PCI_DEVICE_ID_MELLANOX_CONNECTX6DXBF)
2043         },
2044         {
2045                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2046                                 PCI_DEVICE_ID_MELLANOX_CONNECTX6LX)
2047         },
2048         {
2049                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2050                                 PCI_DEVICE_ID_MELLANOX_CONNECTX7)
2051         },
2052         {
2053                 RTE_PCI_DEVICE(PCI_VENDOR_ID_MELLANOX,
2054                                 PCI_DEVICE_ID_MELLANOX_CONNECTX7BF)
2055         },
2056         {
2057                 .vendor_id = 0
2058         }
2059 };
2060
2061 static struct mlx5_pci_driver mlx5_driver = {
2062         .driver_class = MLX5_CLASS_NET,
2063         .pci_driver = {
2064                 .driver = {
2065                         .name = MLX5_DRIVER_NAME,
2066                 },
2067                 .id_table = mlx5_pci_id_map,
2068                 .probe = mlx5_os_pci_probe,
2069                 .remove = mlx5_pci_remove,
2070                 .dma_map = mlx5_dma_map,
2071                 .dma_unmap = mlx5_dma_unmap,
2072                 .drv_flags = PCI_DRV_FLAGS,
2073         },
2074 };
2075
2076 /* Initialize driver log type. */
2077 RTE_LOG_REGISTER(mlx5_logtype, pmd.net.mlx5, NOTICE)
2078
2079 /**
2080  * Driver initialization routine.
2081  */
2082 RTE_INIT(rte_mlx5_pmd_init)
2083 {
2084         mlx5_common_init();
2085         /* Build the static tables for Verbs conversion. */
2086         mlx5_set_ptype_table();
2087         mlx5_set_cksum_table();
2088         mlx5_set_swp_types_table();
2089         if (mlx5_glue)
2090                 mlx5_pci_driver_register(&mlx5_driver);
2091 }
2092
2093 RTE_PMD_EXPORT_NAME(net_mlx5, __COUNTER__);
2094 RTE_PMD_REGISTER_PCI_TABLE(net_mlx5, mlx5_pci_id_map);
2095 RTE_PMD_REGISTER_KMOD_DEP(net_mlx5, "* ib_uverbs & mlx5_core & mlx5_ib");