drivers/net/bnxt/tf_ulp/bnxt_ulp.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2019-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_log.h>
   7 #include <rte_malloc.h>
   8 #include <rte_flow.h>
   9 #include <rte_flow_driver.h>
  10 #include <rte_tailq.h>
  11
  12 #include "bnxt_ulp.h"
  13 #include "bnxt_tf_common.h"
  14 #include "bnxt.h"
  15 #include "tf_core.h"
  16 #include "tf_ext_flow_handle.h"
  17
  18 #include "ulp_template_db.h"
  19 #include "ulp_template_struct.h"
  20 #include "ulp_mark_mgr.h"
  21 #include "ulp_flow_db.h"
  22 #include "ulp_mapper.h"
  23 #include "ulp_port_db.h"
  24
  25 /* Linked list of all TF sessions. */
  26 STAILQ_HEAD(, bnxt_ulp_session_state) bnxt_ulp_session_list =
  27                         STAILQ_HEAD_INITIALIZER(bnxt_ulp_session_list);
  28
  29 /* Mutex to synchronize bnxt_ulp_session_list operations. */
  30 static pthread_mutex_t bnxt_ulp_global_mutex = PTHREAD_MUTEX_INITIALIZER;
  31
  32 /*
  33  * Allow the deletion of context only for the bnxt device that
  34  * created the session
  35  * TBD - The implementation of the function should change to
  36  * using the reference count once tf_session_attach functionality
  37  * is fixed.
  38  */
  39 bool
  40 ulp_ctx_deinit_allowed(void *ptr)
  41 {
  42         struct bnxt *bp = (struct bnxt *)ptr;
  43
  44         if (!bp)
  45                 return 0;
  46
  47         if (&bp->tfp == bp->ulp_ctx->g_tfp)
  48                 return 1;
  49
  50         return 0;
  51 }
  52
  53 /*
  54  * Initialize an ULP session.
  55  * An ULP session will contain all the resources needed to support rte flow
  56  * offloads. A session is initialized as part of rte_eth_device start.
  57  * A single vswitch instance can have multiple uplinks which means
  58  * rte_eth_device start will be called for each of these devices.
  59  * ULP session manager will make sure that a single ULP session is only
  60  * initialized once. Apart from this, it also initializes MARK database,
  61  * EEM table & flow database. ULP session manager also manages a list of
  62  * all opened ULP sessions.
  63  */
  64 static int32_t
  65 ulp_ctx_session_open(struct bnxt *bp,
  66                      struct bnxt_ulp_session_state *session)
  67 {
  68         struct rte_eth_dev              *ethdev = bp->eth_dev;
  69         int32_t                         rc = 0;
  70         struct tf_open_session_parms    params;
  71
  72         memset(&params, 0, sizeof(params));
  73
  74         rc = rte_eth_dev_get_name_by_port(ethdev->data->port_id,
  75                                           params.ctrl_chan_name);
  76         if (rc) {
  77                 BNXT_TF_DBG(ERR, "Invalid port %d, rc = %d\n",
  78                             ethdev->data->port_id, rc);
  79                 return rc;
  80         }
  81
  82         rc = tf_open_session(&bp->tfp, &params);
  83         if (rc) {
  84                 BNXT_TF_DBG(ERR, "Failed to open TF session - %s, rc = %d\n",
  85                             params.ctrl_chan_name, rc);
  86                 return -EINVAL;
  87         }
  88         session->session_opened = 1;
  89         session->g_tfp = &bp->tfp;
  90         return rc;
  91 }
  92
  93 /*
  94  * Close the ULP session.
  95  * It takes the ulp context pointer.
  96  */
  97 static void
  98 ulp_ctx_session_close(struct bnxt *bp,
  99                       struct bnxt_ulp_session_state *session)
 100 {
 101         /* close the session in the hardware */
 102         if (session->session_opened)
 103                 tf_close_session(&bp->tfp);
 104         session->session_opened = 0;
 105         session->g_tfp = NULL;
 106         bp->ulp_ctx->g_tfp = NULL;
 107 }
 108
 109 static void
 110 bnxt_init_tbl_scope_parms(struct bnxt *bp,
 111                           struct tf_alloc_tbl_scope_parms *params)
 112 {
 113         struct bnxt_ulp_device_params   *dparms;
 114         uint32_t dev_id;
 115         int rc;
 116
 117         rc = bnxt_ulp_cntxt_dev_id_get(bp->ulp_ctx, &dev_id);
 118         if (rc)
 119                 /* TBD: For now, just use default. */
 120                 dparms = 0;
 121         else
 122                 dparms = bnxt_ulp_device_params_get(dev_id);
 123
 124         /*
 125          * Set the flush timer for EEM entries. The value is in 100ms intervals,
 126          * so 100 is 10s.
 127          */
 128         params->hw_flow_cache_flush_timer = 100;
 129
 130         if (!dparms) {
 131                 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
 132                 params->rx_max_action_entry_sz_in_bits =
 133                         BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
 134                 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
 135                 params->rx_num_flows_in_k = BNXT_ULP_RX_NUM_FLOWS;
 136                 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
 137
 138                 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
 139                 params->tx_max_action_entry_sz_in_bits =
 140                         BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
 141                 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
 142                 params->tx_num_flows_in_k = BNXT_ULP_TX_NUM_FLOWS;
 143                 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
 144         } else {
 145                 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
 146                 params->rx_max_action_entry_sz_in_bits =
 147                         BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
 148                 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
 149                 params->rx_num_flows_in_k = dparms->num_flows / (1024);
 150                 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
 151
 152                 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
 153                 params->tx_max_action_entry_sz_in_bits =
 154                         BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
 155                 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
 156                 params->tx_num_flows_in_k = dparms->num_flows / (1024);
 157                 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
 158         }
 159 }
 160
 161 /* Initialize Extended Exact Match host memory. */
 162 static int32_t
 163 ulp_eem_tbl_scope_init(struct bnxt *bp)
 164 {
 165         struct tf_alloc_tbl_scope_parms params = {0};
 166         int rc;
 167
 168         bnxt_init_tbl_scope_parms(bp, &params);
 169
 170         rc = tf_alloc_tbl_scope(&bp->tfp, &params);
 171         if (rc) {
 172                 BNXT_TF_DBG(ERR, "Unable to allocate eem table scope rc = %d\n",
 173                             rc);
 174                 return rc;
 175         }
 176
 177         rc = bnxt_ulp_cntxt_tbl_scope_id_set(bp->ulp_ctx, params.tbl_scope_id);
 178         if (rc) {
 179                 BNXT_TF_DBG(ERR, "Unable to set table scope id\n");
 180                 return rc;
 181         }
 182
 183         return 0;
 184 }
 185
 186 /* Free Extended Exact Match host memory */
 187 static int32_t
 188 ulp_eem_tbl_scope_deinit(struct bnxt *bp, struct bnxt_ulp_context *ulp_ctx)
 189 {
 190         struct tf_free_tbl_scope_parms  params = {0};
 191         struct tf                       *tfp;
 192         int32_t                         rc = 0;
 193
 194         if (!ulp_ctx || !ulp_ctx->cfg_data)
 195                 return -EINVAL;
 196
 197         /* Free the resources for the last device */
 198         if (!ulp_ctx_deinit_allowed(bp))
 199                 return rc;
 200
 201         tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
 202         if (!tfp) {
 203                 BNXT_TF_DBG(ERR, "Failed to get the truflow pointer\n");
 204                 return -EINVAL;
 205         }
 206
 207         rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp_ctx, &params.tbl_scope_id);
 208         if (rc) {
 209                 BNXT_TF_DBG(ERR, "Failed to get the table scope id\n");
 210                 return -EINVAL;
 211         }
 212
 213         rc = tf_free_tbl_scope(tfp, &params);
 214         if (rc) {
 215                 BNXT_TF_DBG(ERR, "Unable to free table scope\n");
 216                 return -EINVAL;
 217         }
 218         return rc;
 219 }
 220
 221 /* The function to free and deinit the ulp context data. */
 222 static int32_t
 223 ulp_ctx_deinit(struct bnxt *bp,
 224                struct bnxt_ulp_session_state *session)
 225 {
 226         if (!session || !bp) {
 227                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 228                 return -EINVAL;
 229         }
 230
 231         /* close the tf session */
 232         ulp_ctx_session_close(bp, session);
 233
 234         /* Free the contents */
 235         if (session->cfg_data) {
 236                 rte_free(session->cfg_data);
 237                 bp->ulp_ctx->cfg_data = NULL;
 238                 session->cfg_data = NULL;
 239         }
 240         return 0;
 241 }
 242
 243 /* The function to allocate and initialize the ulp context data. */
 244 static int32_t
 245 ulp_ctx_init(struct bnxt *bp,
 246              struct bnxt_ulp_session_state *session)
 247 {
 248         struct bnxt_ulp_data    *ulp_data;
 249         int32_t                 rc = 0;
 250
 251         if (!session || !bp) {
 252                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 253                 return -EINVAL;
 254         }
 255
 256         /* Allocate memory to hold ulp context data. */
 257         ulp_data = rte_zmalloc("bnxt_ulp_data",
 258                                sizeof(struct bnxt_ulp_data), 0);
 259         if (!ulp_data) {
 260                 BNXT_TF_DBG(ERR, "Failed to allocate memory for ulp data\n");
 261                 return -ENOMEM;
 262         }
 263
 264         /* Increment the ulp context data reference count usage. */
 265         bp->ulp_ctx->cfg_data = ulp_data;
 266         session->cfg_data = ulp_data;
 267         ulp_data->ref_cnt++;
 268
 269         /* Open the ulp session. */
 270         rc = ulp_ctx_session_open(bp, session);
 271         if (rc) {
 272                 (void)ulp_ctx_deinit(bp, session);
 273                 return rc;
 274         }
 275         bnxt_ulp_cntxt_tfp_set(bp->ulp_ctx, session->g_tfp);
 276         return rc;
 277 }
 278
 279 static int32_t
 280 ulp_ctx_attach(struct bnxt_ulp_context *ulp_ctx,
 281                struct bnxt_ulp_session_state *session)
 282 {
 283         if (!ulp_ctx || !session) {
 284                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 285                 return -EINVAL;
 286         }
 287
 288         /* Increment the ulp context data reference count usage. */
 289         ulp_ctx->cfg_data = session->cfg_data;
 290         ulp_ctx->cfg_data->ref_cnt++;
 291
 292         /* TBD call TF_session_attach. */
 293         ulp_ctx->g_tfp = session->g_tfp;
 294         return 0;
 295 }
 296
 297 static int32_t
 298 ulp_ctx_detach(struct bnxt *bp,
 299                struct bnxt_ulp_session_state *session)
 300 {
 301         struct bnxt_ulp_context *ulp_ctx;
 302
 303         if (!bp || !session) {
 304                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 305                 return -EINVAL;
 306         }
 307         ulp_ctx = bp->ulp_ctx;
 308
 309         if (!ulp_ctx->cfg_data)
 310                 return 0;
 311
 312         /* TBD call TF_session_detach */
 313
 314         /* Increment the ulp context data reference count usage. */
 315         if (ulp_ctx->cfg_data->ref_cnt >= 1) {
 316                 ulp_ctx->cfg_data->ref_cnt--;
 317                 if (ulp_ctx_deinit_allowed(bp))
 318                         ulp_ctx_deinit(bp, session);
 319                 ulp_ctx->cfg_data = NULL;
 320                 ulp_ctx->g_tfp = NULL;
 321                 return 0;
 322         }
 323         BNXT_TF_DBG(ERR, "context deatach on invalid data\n");
 324         return 0;
 325 }
 326
 327 /*
 328  * Initialize the state of an ULP session.
 329  * If the state of an ULP session is not initialized, set it's state to
 330  * initialized. If the state is already initialized, do nothing.
 331  */
 332 static void
 333 ulp_context_initialized(struct bnxt_ulp_session_state *session, bool *init)
 334 {
 335         pthread_mutex_lock(&session->bnxt_ulp_mutex);
 336
 337         if (!session->bnxt_ulp_init) {
 338                 session->bnxt_ulp_init = true;
 339                 *init = false;
 340         } else {
 341                 *init = true;
 342         }
 343
 344         pthread_mutex_unlock(&session->bnxt_ulp_mutex);
 345 }
 346
 347 /*
 348  * Check if an ULP session is already allocated for a specific PCI
 349  * domain & bus. If it is already allocated simply return the session
 350  * pointer, otherwise allocate a new session.
 351  */
 352 static struct bnxt_ulp_session_state *
 353 ulp_get_session(struct rte_pci_addr *pci_addr)
 354 {
 355         struct bnxt_ulp_session_state *session;
 356
 357         STAILQ_FOREACH(session, &bnxt_ulp_session_list, next) {
 358                 if (session->pci_info.domain == pci_addr->domain &&
 359                     session->pci_info.bus == pci_addr->bus) {
 360                         return session;
 361                 }
 362         }
 363         return NULL;
 364 }
 365
 366 /*
 367  * Allocate and Initialize an ULP session and set it's state to INITIALIZED.
 368  * If it's already initialized simply return the already existing session.
 369  */
 370 static struct bnxt_ulp_session_state *
 371 ulp_session_init(struct bnxt *bp,
 372                  bool *init)
 373 {
 374         struct rte_pci_device           *pci_dev;
 375         struct rte_pci_addr             *pci_addr;
 376         struct bnxt_ulp_session_state   *session;
 377
 378         if (!bp)
 379                 return NULL;
 380
 381         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 382         pci_addr = &pci_dev->addr;
 383
 384         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 385
 386         session = ulp_get_session(pci_addr);
 387         if (!session) {
 388                 /* Not Found the session  Allocate a new one */
 389                 session = rte_zmalloc("bnxt_ulp_session",
 390                                       sizeof(struct bnxt_ulp_session_state),
 391                                       0);
 392                 if (!session) {
 393                         BNXT_TF_DBG(ERR,
 394                                     "Allocation failed for bnxt_ulp_session\n");
 395                         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 396                         return NULL;
 397
 398                 } else {
 399                         /* Add it to the queue */
 400                         session->pci_info.domain = pci_addr->domain;
 401                         session->pci_info.bus = pci_addr->bus;
 402                         pthread_mutex_init(&session->bnxt_ulp_mutex, NULL);
 403                         STAILQ_INSERT_TAIL(&bnxt_ulp_session_list,
 404                                            session, next);
 405                 }
 406         }
 407         ulp_context_initialized(session, init);
 408         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 409         return session;
 410 }
 411
 412 /*
 413  * When a device is closed, remove it's associated session from the global
 414  * session list.
 415  */
 416 static void
 417 ulp_session_deinit(struct bnxt_ulp_session_state *session)
 418 {
 419         if (!session)
 420                 return;
 421
 422         if (!session->cfg_data) {
 423                 pthread_mutex_lock(&bnxt_ulp_global_mutex);
 424                 STAILQ_REMOVE(&bnxt_ulp_session_list, session,
 425                               bnxt_ulp_session_state, next);
 426                 pthread_mutex_destroy(&session->bnxt_ulp_mutex);
 427                 rte_free(session);
 428                 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 429         }
 430 }
 431
 432 /*
 433  * When a port is initialized by dpdk. This functions is called
 434  * and this function initializes the ULP context and rest of the
 435  * infrastructure associated with it.
 436  */
 437 int32_t
 438 bnxt_ulp_init(struct bnxt *bp)
 439 {
 440         struct bnxt_ulp_session_state *session;
 441         bool init;
 442         int rc;
 443
 444         if (bp->ulp_ctx) {
 445                 BNXT_TF_DBG(ERR, "ulp ctx already allocated\n");
 446                 return -EINVAL;
 447         }
 448
 449         /*
 450          * Multiple uplink ports can be associated with a single vswitch.
 451          * Make sure only the port that is started first will initialize
 452          * the TF session.
 453          */
 454         session = ulp_session_init(bp, &init);
 455         if (!session) {
 456                 BNXT_TF_DBG(ERR, "Failed to initialize the tf session\n");
 457                 return -EINVAL;
 458         }
 459
 460         bp->ulp_ctx = rte_zmalloc("bnxt_ulp_ctx",
 461                                   sizeof(struct bnxt_ulp_context), 0);
 462         if (!bp->ulp_ctx) {
 463                 BNXT_TF_DBG(ERR, "Failed to allocate ulp ctx\n");
 464                 ulp_session_deinit(session);
 465                 return -ENOMEM;
 466         }
 467
 468         /*
 469          * If ULP is already initialized for a specific domain then simply
 470          * assign the ulp context to this rte_eth_dev.
 471          */
 472         if (init) {
 473                 rc = ulp_ctx_attach(bp->ulp_ctx, session);
 474                 if (rc) {
 475                         BNXT_TF_DBG(ERR,
 476                                     "Failed to attach the ulp context\n");
 477                         ulp_session_deinit(session);
 478                         rte_free(bp->ulp_ctx);
 479                         return rc;
 480                 }
 481                 /* update the port database */
 482                 rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp);
 483                 if (rc) {
 484                         BNXT_TF_DBG(ERR,
 485                                     "Failed to update port database\n");
 486                         ulp_ctx_detach(bp, session);
 487                         ulp_session_deinit(session);
 488                         rte_free(bp->ulp_ctx);
 489                 }
 490                 return rc;
 491         }
 492
 493         /* Allocate and Initialize the ulp context. */
 494         rc = ulp_ctx_init(bp, session);
 495         if (rc) {
 496                 BNXT_TF_DBG(ERR, "Failed to create the ulp context\n");
 497                 goto jump_to_error;
 498         }
 499
 500         /* create the port database */
 501         rc = ulp_port_db_init(bp->ulp_ctx);
 502         if (rc) {
 503                 BNXT_TF_DBG(ERR, "Failed to create the port database\n");
 504                 goto jump_to_error;
 505         }
 506
 507         /* update the port database */
 508         rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp);
 509         if (rc) {
 510                 BNXT_TF_DBG(ERR, "Failed to update port database\n");
 511                 goto jump_to_error;
 512         }
 513
 514         /* Create the Mark database. */
 515         rc = ulp_mark_db_init(bp->ulp_ctx);
 516         if (rc) {
 517                 BNXT_TF_DBG(ERR, "Failed to create the mark database\n");
 518                 goto jump_to_error;
 519         }
 520
 521         /* Create the flow database. */
 522         rc = ulp_flow_db_init(bp->ulp_ctx);
 523         if (rc) {
 524                 BNXT_TF_DBG(ERR, "Failed to create the flow database\n");
 525                 goto jump_to_error;
 526         }
 527
 528         /* Create the eem table scope. */
 529         rc = ulp_eem_tbl_scope_init(bp);
 530         if (rc) {
 531                 BNXT_TF_DBG(ERR, "Failed to create the eem scope table\n");
 532                 goto jump_to_error;
 533         }
 534
 535         rc = ulp_mapper_init(bp->ulp_ctx);
 536         if (rc) {
 537                 BNXT_TF_DBG(ERR, "Failed to initialize ulp mapper\n");
 538                 goto jump_to_error;
 539         }
 540
 541         return rc;
 542
 543 jump_to_error:
 544         bnxt_ulp_deinit(bp);
 545         return -ENOMEM;
 546 }
 547
 548 /* Below are the access functions to access internal data of ulp context. */
 549
 550 /*
 551  * When a port is deinit'ed by dpdk. This function is called
 552  * and this function clears the ULP context and rest of the
 553  * infrastructure associated with it.
 554  */
 555 void
 556 bnxt_ulp_deinit(struct bnxt *bp)
 557 {
 558         struct bnxt_ulp_session_state   *session;
 559         struct rte_pci_device           *pci_dev;
 560         struct rte_pci_addr             *pci_addr;
 561
 562         /* Get the session first */
 563         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 564         pci_addr = &pci_dev->addr;
 565         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 566         session = ulp_get_session(pci_addr);
 567         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 568
 569         /* session not found then just exit */
 570         if (!session)
 571                 return;
 572
 573         /* clean up regular flows */
 574         ulp_flow_db_flush_flows(bp->ulp_ctx, BNXT_ULP_REGULAR_FLOW_TABLE);
 575
 576         /* cleanup the eem table scope */
 577         ulp_eem_tbl_scope_deinit(bp, bp->ulp_ctx);
 578
 579         /* cleanup the flow database */
 580         ulp_flow_db_deinit(bp->ulp_ctx);
 581
 582         /* Delete the Mark database */
 583         ulp_mark_db_deinit(bp->ulp_ctx);
 584
 585         /* cleanup the ulp mapper */
 586         ulp_mapper_deinit(bp->ulp_ctx);
 587
 588         /* Delete the Port database */
 589         ulp_port_db_deinit(bp->ulp_ctx);
 590
 591         /* Delete the ulp context and tf session */
 592         ulp_ctx_detach(bp, session);
 593
 594         /* Finally delete the bnxt session*/
 595         ulp_session_deinit(session);
 596
 597         rte_free(bp->ulp_ctx);
 598 }
 599
 600 /* Function to set the Mark DB into the context */
 601 int32_t
 602 bnxt_ulp_cntxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
 603                                 struct bnxt_ulp_mark_tbl *mark_tbl)
 604 {
 605         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 606                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 607                 return -EINVAL;
 608         }
 609
 610         ulp_ctx->cfg_data->mark_tbl = mark_tbl;
 611
 612         return 0;
 613 }
 614
 615 /* Function to retrieve the Mark DB from the context. */
 616 struct bnxt_ulp_mark_tbl *
 617 bnxt_ulp_cntxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx)
 618 {
 619         if (!ulp_ctx || !ulp_ctx->cfg_data)
 620                 return NULL;
 621
 622         return ulp_ctx->cfg_data->mark_tbl;
 623 }
 624
 625 /* Function to set the device id of the hardware. */
 626 int32_t
 627 bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx,
 628                           uint32_t dev_id)
 629 {
 630         if (ulp_ctx && ulp_ctx->cfg_data) {
 631                 ulp_ctx->cfg_data->dev_id = dev_id;
 632                 return 0;
 633         }
 634
 635         return -EINVAL;
 636 }
 637
 638 /* Function to get the device id of the hardware. */
 639 int32_t
 640 bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx,
 641                           uint32_t *dev_id)
 642 {
 643         if (ulp_ctx && ulp_ctx->cfg_data) {
 644                 *dev_id = ulp_ctx->cfg_data->dev_id;
 645                 return 0;
 646         }
 647
 648         return -EINVAL;
 649 }
 650
 651 /* Function to get the table scope id of the EEM table. */
 652 int32_t
 653 bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
 654                                 uint32_t *tbl_scope_id)
 655 {
 656         if (ulp_ctx && ulp_ctx->cfg_data) {
 657                 *tbl_scope_id = ulp_ctx->cfg_data->tbl_scope_id;
 658                 return 0;
 659         }
 660
 661         return -EINVAL;
 662 }
 663
 664 /* Function to set the table scope id of the EEM table. */
 665 int32_t
 666 bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
 667                                 uint32_t tbl_scope_id)
 668 {
 669         if (ulp_ctx && ulp_ctx->cfg_data) {
 670                 ulp_ctx->cfg_data->tbl_scope_id = tbl_scope_id;
 671                 return 0;
 672         }
 673
 674         return -EINVAL;
 675 }
 676
 677 /* Function to set the tfp session details from the ulp context. */
 678 int32_t
 679 bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp)
 680 {
 681         if (!ulp) {
 682                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 683                 return -EINVAL;
 684         }
 685
 686         /* TBD The tfp should be removed once tf_attach is implemented. */
 687         ulp->g_tfp = tfp;
 688         return 0;
 689 }
 690
 691 /* Function to get the tfp session details from the ulp context. */
 692 struct tf *
 693 bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp)
 694 {
 695         if (!ulp) {
 696                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 697                 return NULL;
 698         }
 699         /* TBD The tfp should be removed once tf_attach is implemented. */
 700         return ulp->g_tfp;
 701 }
 702
 703 /*
 704  * Get the device table entry based on the device id.
 705  *
 706  * dev_id [in] The device id of the hardware
 707  *
 708  * Returns the pointer to the device parameters.
 709  */
 710 struct bnxt_ulp_device_params *
 711 bnxt_ulp_device_params_get(uint32_t dev_id)
 712 {
 713         if (dev_id < BNXT_ULP_MAX_NUM_DEVICES)
 714                 return &ulp_device_params[dev_id];
 715         return NULL;
 716 }
 717
 718 /* Function to set the flow database to the ulp context. */
 719 int32_t
 720 bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
 721                                 struct bnxt_ulp_flow_db *flow_db)
 722 {
 723         if (!ulp_ctx || !ulp_ctx->cfg_data)
 724                 return -EINVAL;
 725
 726         ulp_ctx->cfg_data->flow_db = flow_db;
 727         return 0;
 728 }
 729
 730 /* Function to get the flow database from the ulp context. */
 731 struct bnxt_ulp_flow_db *
 732 bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx)
 733 {
 734         if (!ulp_ctx || !ulp_ctx->cfg_data)
 735                 return NULL;
 736
 737         return ulp_ctx->cfg_data->flow_db;
 738 }
 739
 740 /* Function to get the ulp context from eth device. */
 741 struct bnxt_ulp_context *
 742 bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev      *dev)
 743 {
 744         struct bnxt     *bp;
 745
 746         bp = (struct bnxt *)dev->data->dev_private;
 747         if (!bp) {
 748                 BNXT_TF_DBG(ERR, "Bnxt private data is not initialized\n");
 749                 return NULL;
 750         }
 751         return bp->ulp_ctx;
 752 }
 753
 754 int32_t
 755 bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
 756                                     void *mapper_data)
 757 {
 758         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 759                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 760                 return -EINVAL;
 761         }
 762
 763         ulp_ctx->cfg_data->mapper_data = mapper_data;
 764         return 0;
 765 }
 766
 767 void *
 768 bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx)
 769 {
 770         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 771                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 772                 return NULL;
 773         }
 774
 775         return ulp_ctx->cfg_data->mapper_data;
 776 }
 777
 778 /* Function to set the port database to the ulp context. */
 779 int32_t
 780 bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
 781                                 struct bnxt_ulp_port_db *port_db)
 782 {
 783         if (!ulp_ctx || !ulp_ctx->cfg_data)
 784                 return -EINVAL;
 785
 786         ulp_ctx->cfg_data->port_db = port_db;
 787         return 0;
 788 }
 789
 790 /* Function to get the port database from the ulp context. */
 791 struct bnxt_ulp_port_db *
 792 bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx)
 793 {
 794         if (!ulp_ctx || !ulp_ctx->cfg_data)
 795                 return NULL;
 796
 797         return ulp_ctx->cfg_data->port_db;
 798 }