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_enum.h"
  19 #include "ulp_template_struct.h"
  20 #include "ulp_mark_mgr.h"
  21 #include "ulp_fc_mgr.h"
  22 #include "ulp_flow_db.h"
  23 #include "ulp_mapper.h"
  24 #include "ulp_port_db.h"
  25
  26 /* Linked list of all TF sessions. */
  27 STAILQ_HEAD(, bnxt_ulp_session_state) bnxt_ulp_session_list =
  28                         STAILQ_HEAD_INITIALIZER(bnxt_ulp_session_list);
  29
  30 /* Mutex to synchronize bnxt_ulp_session_list operations. */
  31 static pthread_mutex_t bnxt_ulp_global_mutex = PTHREAD_MUTEX_INITIALIZER;
  32
  33 /*
  34  * Allow the deletion of context only for the bnxt device that
  35  * created the session
  36  * TBD - The implementation of the function should change to
  37  * using the reference count once tf_session_attach functionality
  38  * is fixed.
  39  */
  40 bool
  41 ulp_ctx_deinit_allowed(void *ptr)
  42 {
  43         struct bnxt *bp = (struct bnxt *)ptr;
  44
  45         if (!bp)
  46                 return 0;
  47
  48         if (&bp->tfp == bp->ulp_ctx->g_tfp)
  49                 return 1;
  50
  51         return 0;
  52 }
  53
  54 /*
  55  * Initialize an ULP session.
  56  * An ULP session will contain all the resources needed to support rte flow
  57  * offloads. A session is initialized as part of rte_eth_device start.
  58  * A single vswitch instance can have multiple uplinks which means
  59  * rte_eth_device start will be called for each of these devices.
  60  * ULP session manager will make sure that a single ULP session is only
  61  * initialized once. Apart from this, it also initializes MARK database,
  62  * EEM table & flow database. ULP session manager also manages a list of
  63  * all opened ULP sessions.
  64  */
  65 static int32_t
  66 ulp_ctx_session_open(struct bnxt *bp,
  67                      struct bnxt_ulp_session_state *session)
  68 {
  69         struct rte_eth_dev              *ethdev = bp->eth_dev;
  70         int32_t                         rc = 0;
  71         struct tf_open_session_parms    params;
  72         struct tf_session_resources     *resources;
  73
  74         memset(&params, 0, sizeof(params));
  75
  76         rc = rte_eth_dev_get_name_by_port(ethdev->data->port_id,
  77                                           params.ctrl_chan_name);
  78         if (rc) {
  79                 BNXT_TF_DBG(ERR, "Invalid port %d, rc = %d\n",
  80                             ethdev->data->port_id, rc);
  81                 return rc;
  82         }
  83
  84         params.shadow_copy = false;
  85         params.device_type = TF_DEVICE_TYPE_WH;
  86         resources = &params.resources;
  87         /** RX **/
  88         /* Identifiers */
  89         resources->ident_cnt[TF_DIR_RX].cnt[TF_IDENT_TYPE_L2_CTXT_HIGH] = 200;
  90         resources->ident_cnt[TF_DIR_RX].cnt[TF_IDENT_TYPE_L2_CTXT_LOW] = 20;
  91         resources->ident_cnt[TF_DIR_RX].cnt[TF_IDENT_TYPE_WC_PROF] = 8;
  92         resources->ident_cnt[TF_DIR_RX].cnt[TF_IDENT_TYPE_PROF_FUNC] = 8;
  93         resources->ident_cnt[TF_DIR_RX].cnt[TF_IDENT_TYPE_EM_PROF] = 8;
  94
  95         /* Table Types */
  96         resources->tbl_cnt[TF_DIR_RX].cnt[TF_TBL_TYPE_FULL_ACT_RECORD] = 720;
  97         resources->tbl_cnt[TF_DIR_RX].cnt[TF_TBL_TYPE_ACT_STATS_64] = 720;
  98         resources->tbl_cnt[TF_DIR_RX].cnt[TF_TBL_TYPE_ACT_MODIFY_IPV4] = 8;
  99
 100         /* ENCAP */
 101         resources->tbl_cnt[TF_DIR_RX].cnt[TF_TBL_TYPE_ACT_ENCAP_8B] = 16;
 102         resources->tbl_cnt[TF_DIR_RX].cnt[TF_TBL_TYPE_ACT_ENCAP_16B] = 16;
 103
 104         /* TCAMs */
 105         resources->tcam_cnt[TF_DIR_RX].cnt[TF_TCAM_TBL_TYPE_L2_CTXT_TCAM_HIGH] =
 106                 200;
 107         resources->tcam_cnt[TF_DIR_RX].cnt[TF_TCAM_TBL_TYPE_L2_CTXT_TCAM_LOW] =
 108                 20;
 109         resources->tcam_cnt[TF_DIR_RX].cnt[TF_TCAM_TBL_TYPE_PROF_TCAM] = 8;
 110         resources->tcam_cnt[TF_DIR_RX].cnt[TF_TCAM_TBL_TYPE_WC_TCAM] = 416;
 111
 112         /* EM */
 113         resources->em_cnt[TF_DIR_RX].cnt[TF_EM_TBL_TYPE_EM_RECORD] = 2048;
 114
 115         /* EEM */
 116         resources->em_cnt[TF_DIR_RX].cnt[TF_EM_TBL_TYPE_TBL_SCOPE] = 1;
 117
 118         /** TX **/
 119         /* Identifiers */
 120         resources->ident_cnt[TF_DIR_TX].cnt[TF_IDENT_TYPE_L2_CTXT_HIGH] = 200;
 121         resources->ident_cnt[TF_DIR_TX].cnt[TF_IDENT_TYPE_L2_CTXT_LOW] = 20;
 122         resources->ident_cnt[TF_DIR_TX].cnt[TF_IDENT_TYPE_WC_PROF] = 8;
 123         resources->ident_cnt[TF_DIR_TX].cnt[TF_IDENT_TYPE_PROF_FUNC] = 8;
 124         resources->ident_cnt[TF_DIR_TX].cnt[TF_IDENT_TYPE_EM_PROF] = 8;
 125
 126         /* Table Types */
 127         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_FULL_ACT_RECORD] = 16;
 128         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_ACT_STATS_64] = 16;
 129         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_ACT_MODIFY_IPV4] = 8;
 130
 131         /* ENCAP */
 132         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_ACT_ENCAP_64B] = 16;
 133         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_ACT_ENCAP_16B] = 16;
 134
 135         /* TCAMs */
 136         resources->tcam_cnt[TF_DIR_TX].cnt[TF_TCAM_TBL_TYPE_L2_CTXT_TCAM_HIGH] =
 137                 200;
 138         resources->tcam_cnt[TF_DIR_TX].cnt[TF_TCAM_TBL_TYPE_L2_CTXT_TCAM_LOW] =
 139                 20;
 140         resources->tcam_cnt[TF_DIR_TX].cnt[TF_TCAM_TBL_TYPE_PROF_TCAM] = 8;
 141         resources->tcam_cnt[TF_DIR_TX].cnt[TF_TCAM_TBL_TYPE_WC_TCAM] = 8;
 142
 143         /* EM */
 144         resources->em_cnt[TF_DIR_TX].cnt[TF_EM_TBL_TYPE_EM_RECORD] = 2048;
 145
 146         /* EEM */
 147         resources->em_cnt[TF_DIR_TX].cnt[TF_EM_TBL_TYPE_TBL_SCOPE] = 1;
 148
 149         /* SP */
 150         resources->tbl_cnt[TF_DIR_TX].cnt[TF_TBL_TYPE_ACT_SP_SMAC_IPV4] = 128;
 151
 152         rc = tf_open_session(&bp->tfp, &params);
 153         if (rc) {
 154                 BNXT_TF_DBG(ERR, "Failed to open TF session - %s, rc = %d\n",
 155                             params.ctrl_chan_name, rc);
 156                 return -EINVAL;
 157         }
 158         session->session_opened = 1;
 159         session->g_tfp = &bp->tfp;
 160         return rc;
 161 }
 162
 163 /*
 164  * Close the ULP session.
 165  * It takes the ulp context pointer.
 166  */
 167 static void
 168 ulp_ctx_session_close(struct bnxt *bp,
 169                       struct bnxt_ulp_session_state *session)
 170 {
 171         /* close the session in the hardware */
 172         if (session->session_opened)
 173                 tf_close_session(&bp->tfp);
 174         session->session_opened = 0;
 175         session->g_tfp = NULL;
 176         bp->ulp_ctx->g_tfp = NULL;
 177 }
 178
 179 static void
 180 bnxt_init_tbl_scope_parms(struct bnxt *bp,
 181                           struct tf_alloc_tbl_scope_parms *params)
 182 {
 183         struct bnxt_ulp_device_params   *dparms;
 184         uint32_t dev_id;
 185         int rc;
 186
 187         rc = bnxt_ulp_cntxt_dev_id_get(bp->ulp_ctx, &dev_id);
 188         if (rc)
 189                 /* TBD: For now, just use default. */
 190                 dparms = 0;
 191         else
 192                 dparms = bnxt_ulp_device_params_get(dev_id);
 193
 194         /*
 195          * Set the flush timer for EEM entries. The value is in 100ms intervals,
 196          * so 100 is 10s.
 197          */
 198         params->hw_flow_cache_flush_timer = 100;
 199
 200         if (!dparms) {
 201                 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
 202                 params->rx_max_action_entry_sz_in_bits =
 203                         BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
 204                 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
 205                 params->rx_num_flows_in_k = BNXT_ULP_RX_NUM_FLOWS;
 206                 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
 207
 208                 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
 209                 params->tx_max_action_entry_sz_in_bits =
 210                         BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
 211                 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
 212                 params->tx_num_flows_in_k = BNXT_ULP_TX_NUM_FLOWS;
 213                 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
 214         } else {
 215                 params->rx_max_key_sz_in_bits = BNXT_ULP_DFLT_RX_MAX_KEY;
 216                 params->rx_max_action_entry_sz_in_bits =
 217                         BNXT_ULP_DFLT_RX_MAX_ACTN_ENTRY;
 218                 params->rx_mem_size_in_mb = BNXT_ULP_DFLT_RX_MEM;
 219                 params->rx_num_flows_in_k = dparms->flow_db_num_entries / 1024;
 220                 params->rx_tbl_if_id = BNXT_ULP_RX_TBL_IF_ID;
 221
 222                 params->tx_max_key_sz_in_bits = BNXT_ULP_DFLT_TX_MAX_KEY;
 223                 params->tx_max_action_entry_sz_in_bits =
 224                         BNXT_ULP_DFLT_TX_MAX_ACTN_ENTRY;
 225                 params->tx_mem_size_in_mb = BNXT_ULP_DFLT_TX_MEM;
 226                 params->tx_num_flows_in_k = dparms->flow_db_num_entries / 1024;
 227                 params->tx_tbl_if_id = BNXT_ULP_TX_TBL_IF_ID;
 228         }
 229 }
 230
 231 /* Initialize Extended Exact Match host memory. */
 232 static int32_t
 233 ulp_eem_tbl_scope_init(struct bnxt *bp)
 234 {
 235         struct tf_alloc_tbl_scope_parms params = {0};
 236         uint32_t dev_id;
 237         struct bnxt_ulp_device_params *dparms;
 238         int rc;
 239
 240         /* Get the dev specific number of flows that needed to be supported. */
 241         if (bnxt_ulp_cntxt_dev_id_get(bp->ulp_ctx, &dev_id)) {
 242                 BNXT_TF_DBG(ERR, "Invalid device id\n");
 243                 return -EINVAL;
 244         }
 245
 246         dparms = bnxt_ulp_device_params_get(dev_id);
 247         if (!dparms) {
 248                 BNXT_TF_DBG(ERR, "could not fetch the device params\n");
 249                 return -ENODEV;
 250         }
 251
 252         if (dparms->flow_mem_type != BNXT_ULP_FLOW_MEM_TYPE_EXT) {
 253                 BNXT_TF_DBG(INFO, "Table Scope alloc is not required\n");
 254                 return 0;
 255         }
 256
 257         bnxt_init_tbl_scope_parms(bp, &params);
 258
 259         rc = tf_alloc_tbl_scope(&bp->tfp, &params);
 260         if (rc) {
 261                 BNXT_TF_DBG(ERR, "Unable to allocate eem table scope rc = %d\n",
 262                             rc);
 263                 return rc;
 264         }
 265
 266         rc = bnxt_ulp_cntxt_tbl_scope_id_set(bp->ulp_ctx, params.tbl_scope_id);
 267         if (rc) {
 268                 BNXT_TF_DBG(ERR, "Unable to set table scope id\n");
 269                 return rc;
 270         }
 271
 272         return 0;
 273 }
 274
 275 /* Free Extended Exact Match host memory */
 276 static int32_t
 277 ulp_eem_tbl_scope_deinit(struct bnxt *bp, struct bnxt_ulp_context *ulp_ctx)
 278 {
 279         struct tf_free_tbl_scope_parms  params = {0};
 280         struct tf                       *tfp;
 281         int32_t                         rc = 0;
 282         struct bnxt_ulp_device_params *dparms;
 283         uint32_t dev_id;
 284
 285         if (!ulp_ctx || !ulp_ctx->cfg_data)
 286                 return -EINVAL;
 287
 288         /* Free the resources for the last device */
 289         if (!ulp_ctx_deinit_allowed(bp))
 290                 return rc;
 291
 292         tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
 293         if (!tfp) {
 294                 BNXT_TF_DBG(ERR, "Failed to get the truflow pointer\n");
 295                 return -EINVAL;
 296         }
 297
 298         /* Get the dev specific number of flows that needed to be supported. */
 299         if (bnxt_ulp_cntxt_dev_id_get(bp->ulp_ctx, &dev_id)) {
 300                 BNXT_TF_DBG(ERR, "Invalid device id\n");
 301                 return -EINVAL;
 302         }
 303
 304         dparms = bnxt_ulp_device_params_get(dev_id);
 305         if (!dparms) {
 306                 BNXT_TF_DBG(ERR, "could not fetch the device params\n");
 307                 return -ENODEV;
 308         }
 309
 310         if (dparms->flow_mem_type != BNXT_ULP_FLOW_MEM_TYPE_EXT) {
 311                 BNXT_TF_DBG(INFO, "Table Scope free is not required\n");
 312                 return 0;
 313         }
 314
 315         rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp_ctx, &params.tbl_scope_id);
 316         if (rc) {
 317                 BNXT_TF_DBG(ERR, "Failed to get the table scope id\n");
 318                 return -EINVAL;
 319         }
 320
 321         rc = tf_free_tbl_scope(tfp, &params);
 322         if (rc) {
 323                 BNXT_TF_DBG(ERR, "Unable to free table scope\n");
 324                 return -EINVAL;
 325         }
 326         return rc;
 327 }
 328
 329 /* The function to free and deinit the ulp context data. */
 330 static int32_t
 331 ulp_ctx_deinit(struct bnxt *bp,
 332                struct bnxt_ulp_session_state *session)
 333 {
 334         if (!session || !bp) {
 335                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 336                 return -EINVAL;
 337         }
 338
 339         /* close the tf session */
 340         ulp_ctx_session_close(bp, session);
 341
 342         /* Free the contents */
 343         if (session->cfg_data) {
 344                 rte_free(session->cfg_data);
 345                 bp->ulp_ctx->cfg_data = NULL;
 346                 session->cfg_data = NULL;
 347         }
 348         return 0;
 349 }
 350
 351 /* The function to allocate and initialize the ulp context data. */
 352 static int32_t
 353 ulp_ctx_init(struct bnxt *bp,
 354              struct bnxt_ulp_session_state *session)
 355 {
 356         struct bnxt_ulp_data    *ulp_data;
 357         int32_t                 rc = 0;
 358
 359         if (!session || !bp) {
 360                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 361                 return -EINVAL;
 362         }
 363
 364         /* Allocate memory to hold ulp context data. */
 365         ulp_data = rte_zmalloc("bnxt_ulp_data",
 366                                sizeof(struct bnxt_ulp_data), 0);
 367         if (!ulp_data) {
 368                 BNXT_TF_DBG(ERR, "Failed to allocate memory for ulp data\n");
 369                 return -ENOMEM;
 370         }
 371
 372         /* Increment the ulp context data reference count usage. */
 373         bp->ulp_ctx->cfg_data = ulp_data;
 374         session->cfg_data = ulp_data;
 375         ulp_data->ref_cnt++;
 376         ulp_data->ulp_flags |= BNXT_ULP_VF_REP_ENABLED;
 377
 378         /* Open the ulp session. */
 379         rc = ulp_ctx_session_open(bp, session);
 380         if (rc) {
 381                 (void)ulp_ctx_deinit(bp, session);
 382                 return rc;
 383         }
 384         bnxt_ulp_cntxt_tfp_set(bp->ulp_ctx, session->g_tfp);
 385         return rc;
 386 }
 387
 388 /* The function to initialize ulp dparms with devargs */
 389 static int32_t
 390 ulp_dparms_init(struct bnxt *bp,
 391                 struct bnxt_ulp_context *ulp_ctx)
 392 {
 393         struct bnxt_ulp_device_params *dparms;
 394         uint32_t dev_id;
 395
 396         if (!bp->max_num_kflows)
 397                 return -EINVAL;
 398
 399         if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &dev_id)) {
 400                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
 401                 return -EINVAL;
 402         }
 403
 404         dparms = bnxt_ulp_device_params_get(dev_id);
 405         if (!dparms) {
 406                 BNXT_TF_DBG(DEBUG, "Failed to get device parms\n");
 407                 return -EINVAL;
 408         }
 409
 410         /* num_flows = max_num_kflows * 1024 */
 411         dparms->flow_db_num_entries = bp->max_num_kflows * 1024;
 412         /* GFID =  2 * num_flows */
 413         dparms->mark_db_gfid_entries = dparms->flow_db_num_entries * 2;
 414         BNXT_TF_DBG(DEBUG, "Set the number of flows = %"PRIu64"\n",
 415                     dparms->flow_db_num_entries);
 416
 417         return 0;
 418 }
 419
 420 /* The function to initialize bp flags with truflow features */
 421 static int32_t
 422 ulp_dparms_dev_port_intf_update(struct bnxt *bp,
 423                                 struct bnxt_ulp_context *ulp_ctx)
 424 {
 425         struct bnxt_ulp_device_params *dparms;
 426         uint32_t dev_id;
 427
 428         if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &dev_id)) {
 429                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
 430                 return -EINVAL;
 431         }
 432
 433         dparms = bnxt_ulp_device_params_get(dev_id);
 434         if (!dparms) {
 435                 BNXT_TF_DBG(DEBUG, "Failed to get device parms\n");
 436                 return -EINVAL;
 437         }
 438
 439         /* Update the bp flag with gfid flag */
 440         if (dparms->flow_mem_type == BNXT_ULP_FLOW_MEM_TYPE_EXT)
 441                 bp->flags |= BNXT_FLAG_GFID_ENABLE;
 442
 443         return 0;
 444 }
 445
 446 static int32_t
 447 ulp_ctx_attach(struct bnxt_ulp_context *ulp_ctx,
 448                struct bnxt_ulp_session_state *session)
 449 {
 450         if (!ulp_ctx || !session) {
 451                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 452                 return -EINVAL;
 453         }
 454
 455         /* Increment the ulp context data reference count usage. */
 456         ulp_ctx->cfg_data = session->cfg_data;
 457         ulp_ctx->cfg_data->ref_cnt++;
 458
 459         /* TBD call TF_session_attach. */
 460         ulp_ctx->g_tfp = session->g_tfp;
 461         return 0;
 462 }
 463
 464 static int32_t
 465 ulp_ctx_detach(struct bnxt *bp,
 466                struct bnxt_ulp_session_state *session)
 467 {
 468         struct bnxt_ulp_context *ulp_ctx;
 469
 470         if (!bp || !session) {
 471                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 472                 return -EINVAL;
 473         }
 474         ulp_ctx = bp->ulp_ctx;
 475
 476         if (!ulp_ctx->cfg_data)
 477                 return 0;
 478
 479         /* TBD call TF_session_detach */
 480
 481         /* Increment the ulp context data reference count usage. */
 482         if (ulp_ctx->cfg_data->ref_cnt >= 1) {
 483                 ulp_ctx->cfg_data->ref_cnt--;
 484                 if (ulp_ctx_deinit_allowed(bp))
 485                         ulp_ctx_deinit(bp, session);
 486                 ulp_ctx->cfg_data = NULL;
 487                 ulp_ctx->g_tfp = NULL;
 488                 return 0;
 489         }
 490         BNXT_TF_DBG(ERR, "context deatach on invalid data\n");
 491         return 0;
 492 }
 493
 494 /*
 495  * Initialize the state of an ULP session.
 496  * If the state of an ULP session is not initialized, set it's state to
 497  * initialized. If the state is already initialized, do nothing.
 498  */
 499 static void
 500 ulp_context_initialized(struct bnxt_ulp_session_state *session, bool *init)
 501 {
 502         pthread_mutex_lock(&session->bnxt_ulp_mutex);
 503
 504         if (!session->bnxt_ulp_init) {
 505                 session->bnxt_ulp_init = true;
 506                 *init = false;
 507         } else {
 508                 *init = true;
 509         }
 510
 511         pthread_mutex_unlock(&session->bnxt_ulp_mutex);
 512 }
 513
 514 /*
 515  * Check if an ULP session is already allocated for a specific PCI
 516  * domain & bus. If it is already allocated simply return the session
 517  * pointer, otherwise allocate a new session.
 518  */
 519 static struct bnxt_ulp_session_state *
 520 ulp_get_session(struct rte_pci_addr *pci_addr)
 521 {
 522         struct bnxt_ulp_session_state *session;
 523
 524         STAILQ_FOREACH(session, &bnxt_ulp_session_list, next) {
 525                 if (session->pci_info.domain == pci_addr->domain &&
 526                     session->pci_info.bus == pci_addr->bus) {
 527                         return session;
 528                 }
 529         }
 530         return NULL;
 531 }
 532
 533 /*
 534  * Allocate and Initialize an ULP session and set it's state to INITIALIZED.
 535  * If it's already initialized simply return the already existing session.
 536  */
 537 static struct bnxt_ulp_session_state *
 538 ulp_session_init(struct bnxt *bp,
 539                  bool *init)
 540 {
 541         struct rte_pci_device           *pci_dev;
 542         struct rte_pci_addr             *pci_addr;
 543         struct bnxt_ulp_session_state   *session;
 544
 545         if (!bp)
 546                 return NULL;
 547
 548         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 549         pci_addr = &pci_dev->addr;
 550
 551         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 552
 553         session = ulp_get_session(pci_addr);
 554         if (!session) {
 555                 /* Not Found the session  Allocate a new one */
 556                 session = rte_zmalloc("bnxt_ulp_session",
 557                                       sizeof(struct bnxt_ulp_session_state),
 558                                       0);
 559                 if (!session) {
 560                         BNXT_TF_DBG(ERR,
 561                                     "Allocation failed for bnxt_ulp_session\n");
 562                         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 563                         return NULL;
 564
 565                 } else {
 566                         /* Add it to the queue */
 567                         session->pci_info.domain = pci_addr->domain;
 568                         session->pci_info.bus = pci_addr->bus;
 569                         pthread_mutex_init(&session->bnxt_ulp_mutex, NULL);
 570                         STAILQ_INSERT_TAIL(&bnxt_ulp_session_list,
 571                                            session, next);
 572                 }
 573         }
 574         ulp_context_initialized(session, init);
 575         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 576         return session;
 577 }
 578
 579 /*
 580  * When a device is closed, remove it's associated session from the global
 581  * session list.
 582  */
 583 static void
 584 ulp_session_deinit(struct bnxt_ulp_session_state *session)
 585 {
 586         if (!session)
 587                 return;
 588
 589         if (!session->cfg_data) {
 590                 pthread_mutex_lock(&bnxt_ulp_global_mutex);
 591                 STAILQ_REMOVE(&bnxt_ulp_session_list, session,
 592                               bnxt_ulp_session_state, next);
 593                 pthread_mutex_destroy(&session->bnxt_ulp_mutex);
 594                 rte_free(session);
 595                 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 596         }
 597 }
 598
 599 /*
 600  * When a port is initialized by dpdk. This functions is called
 601  * and this function initializes the ULP context and rest of the
 602  * infrastructure associated with it.
 603  */
 604 int32_t
 605 bnxt_ulp_init(struct bnxt *bp)
 606 {
 607         struct bnxt_ulp_session_state *session;
 608         bool init;
 609         int rc;
 610
 611         if (bp->ulp_ctx) {
 612                 BNXT_TF_DBG(DEBUG, "ulp ctx already allocated\n");
 613                 return -EINVAL;
 614         }
 615
 616         /*
 617          * Multiple uplink ports can be associated with a single vswitch.
 618          * Make sure only the port that is started first will initialize
 619          * the TF session.
 620          */
 621         session = ulp_session_init(bp, &init);
 622         if (!session) {
 623                 BNXT_TF_DBG(ERR, "Failed to initialize the tf session\n");
 624                 return -EINVAL;
 625         }
 626
 627         bp->ulp_ctx = rte_zmalloc("bnxt_ulp_ctx",
 628                                   sizeof(struct bnxt_ulp_context), 0);
 629         if (!bp->ulp_ctx) {
 630                 BNXT_TF_DBG(ERR, "Failed to allocate ulp ctx\n");
 631                 ulp_session_deinit(session);
 632                 return -ENOMEM;
 633         }
 634
 635         /*
 636          * If ULP is already initialized for a specific domain then simply
 637          * assign the ulp context to this rte_eth_dev.
 638          */
 639         if (init) {
 640                 rc = ulp_ctx_attach(bp->ulp_ctx, session);
 641                 if (rc) {
 642                         BNXT_TF_DBG(ERR,
 643                                     "Failed to attach the ulp context\n");
 644                         ulp_session_deinit(session);
 645                         rte_free(bp->ulp_ctx);
 646                         return rc;
 647                 }
 648
 649                 /* Update bnxt driver flags */
 650                 rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 651                 if (rc) {
 652                         BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 653                         ulp_ctx_detach(bp, session);
 654                         ulp_session_deinit(session);
 655                         rte_free(bp->ulp_ctx);
 656                         return rc;
 657                 }
 658
 659                 /* update the port database */
 660                 rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 661                 if (rc) {
 662                         BNXT_TF_DBG(ERR,
 663                                     "Failed to update port database\n");
 664                         ulp_ctx_detach(bp, session);
 665                         ulp_session_deinit(session);
 666                         rte_free(bp->ulp_ctx);
 667                 }
 668                 return rc;
 669         }
 670
 671         /* Allocate and Initialize the ulp context. */
 672         rc = ulp_ctx_init(bp, session);
 673         if (rc) {
 674                 BNXT_TF_DBG(ERR, "Failed to create the ulp context\n");
 675                 goto jump_to_error;
 676         }
 677
 678         /* Initialize ulp dparms with values devargs passed */
 679         rc = ulp_dparms_init(bp, bp->ulp_ctx);
 680
 681         /* create the port database */
 682         rc = ulp_port_db_init(bp->ulp_ctx, bp->port_cnt);
 683         if (rc) {
 684                 BNXT_TF_DBG(ERR, "Failed to create the port database\n");
 685                 goto jump_to_error;
 686         }
 687
 688         /* Update bnxt driver flags */
 689         rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 690         if (rc) {
 691                 BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 692                 goto jump_to_error;
 693         }
 694
 695         /* update the port database */
 696         rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 697         if (rc) {
 698                 BNXT_TF_DBG(ERR, "Failed to update port database\n");
 699                 goto jump_to_error;
 700         }
 701
 702         /* Create the Mark database. */
 703         rc = ulp_mark_db_init(bp->ulp_ctx);
 704         if (rc) {
 705                 BNXT_TF_DBG(ERR, "Failed to create the mark database\n");
 706                 goto jump_to_error;
 707         }
 708
 709         /* Create the flow database. */
 710         rc = ulp_flow_db_init(bp->ulp_ctx);
 711         if (rc) {
 712                 BNXT_TF_DBG(ERR, "Failed to create the flow database\n");
 713                 goto jump_to_error;
 714         }
 715
 716         /* Create the eem table scope. */
 717         rc = ulp_eem_tbl_scope_init(bp);
 718         if (rc) {
 719                 BNXT_TF_DBG(ERR, "Failed to create the eem scope table\n");
 720                 goto jump_to_error;
 721         }
 722
 723         rc = ulp_mapper_init(bp->ulp_ctx);
 724         if (rc) {
 725                 BNXT_TF_DBG(ERR, "Failed to initialize ulp mapper\n");
 726                 goto jump_to_error;
 727         }
 728
 729         rc = ulp_fc_mgr_init(bp->ulp_ctx);
 730         if (rc) {
 731                 BNXT_TF_DBG(ERR, "Failed to initialize ulp flow counter mgr\n");
 732                 goto jump_to_error;
 733         }
 734
 735         return rc;
 736
 737 jump_to_error:
 738         bnxt_ulp_deinit(bp);
 739         return -ENOMEM;
 740 }
 741
 742 /* Below are the access functions to access internal data of ulp context. */
 743
 744 /*
 745  * When a port is deinit'ed by dpdk. This function is called
 746  * and this function clears the ULP context and rest of the
 747  * infrastructure associated with it.
 748  */
 749 void
 750 bnxt_ulp_deinit(struct bnxt *bp)
 751 {
 752         struct bnxt_ulp_session_state   *session;
 753         struct rte_pci_device           *pci_dev;
 754         struct rte_pci_addr             *pci_addr;
 755
 756         /* Get the session first */
 757         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 758         pci_addr = &pci_dev->addr;
 759         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 760         session = ulp_get_session(pci_addr);
 761         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 762
 763         /* session not found then just exit */
 764         if (!session)
 765                 return;
 766
 767         /* clean up regular flows */
 768         ulp_flow_db_flush_flows(bp->ulp_ctx, BNXT_ULP_REGULAR_FLOW_TABLE);
 769
 770         /* cleanup the eem table scope */
 771         ulp_eem_tbl_scope_deinit(bp, bp->ulp_ctx);
 772
 773         /* cleanup the flow database */
 774         ulp_flow_db_deinit(bp->ulp_ctx);
 775
 776         /* Delete the Mark database */
 777         ulp_mark_db_deinit(bp->ulp_ctx);
 778
 779         /* cleanup the ulp mapper */
 780         ulp_mapper_deinit(bp->ulp_ctx);
 781
 782         /* Delete the Flow Counter Manager */
 783         ulp_fc_mgr_deinit(bp->ulp_ctx);
 784
 785         /* Delete the Port database */
 786         ulp_port_db_deinit(bp->ulp_ctx);
 787
 788         /* Delete the ulp context and tf session */
 789         ulp_ctx_detach(bp, session);
 790
 791         /* Finally delete the bnxt session*/
 792         ulp_session_deinit(session);
 793
 794         rte_free(bp->ulp_ctx);
 795 }
 796
 797 /* Function to set the Mark DB into the context */
 798 int32_t
 799 bnxt_ulp_cntxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
 800                                 struct bnxt_ulp_mark_tbl *mark_tbl)
 801 {
 802         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 803                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 804                 return -EINVAL;
 805         }
 806
 807         ulp_ctx->cfg_data->mark_tbl = mark_tbl;
 808
 809         return 0;
 810 }
 811
 812 /* Function to retrieve the Mark DB from the context. */
 813 struct bnxt_ulp_mark_tbl *
 814 bnxt_ulp_cntxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx)
 815 {
 816         if (!ulp_ctx || !ulp_ctx->cfg_data)
 817                 return NULL;
 818
 819         return ulp_ctx->cfg_data->mark_tbl;
 820 }
 821
 822 /* Function to set the device id of the hardware. */
 823 int32_t
 824 bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx,
 825                           uint32_t dev_id)
 826 {
 827         if (ulp_ctx && ulp_ctx->cfg_data) {
 828                 ulp_ctx->cfg_data->dev_id = dev_id;
 829                 return 0;
 830         }
 831
 832         return -EINVAL;
 833 }
 834
 835 /* Function to get the device id of the hardware. */
 836 int32_t
 837 bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx,
 838                           uint32_t *dev_id)
 839 {
 840         if (ulp_ctx && ulp_ctx->cfg_data) {
 841                 *dev_id = ulp_ctx->cfg_data->dev_id;
 842                 return 0;
 843         }
 844
 845         return -EINVAL;
 846 }
 847
 848 /* Function to get the table scope id of the EEM table. */
 849 int32_t
 850 bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
 851                                 uint32_t *tbl_scope_id)
 852 {
 853         if (ulp_ctx && ulp_ctx->cfg_data) {
 854                 *tbl_scope_id = ulp_ctx->cfg_data->tbl_scope_id;
 855                 return 0;
 856         }
 857
 858         return -EINVAL;
 859 }
 860
 861 /* Function to set the table scope id of the EEM table. */
 862 int32_t
 863 bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
 864                                 uint32_t tbl_scope_id)
 865 {
 866         if (ulp_ctx && ulp_ctx->cfg_data) {
 867                 ulp_ctx->cfg_data->tbl_scope_id = tbl_scope_id;
 868                 return 0;
 869         }
 870
 871         return -EINVAL;
 872 }
 873
 874 /* Function to set the tfp session details from the ulp context. */
 875 int32_t
 876 bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp)
 877 {
 878         if (!ulp) {
 879                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 880                 return -EINVAL;
 881         }
 882
 883         /* TBD The tfp should be removed once tf_attach is implemented. */
 884         ulp->g_tfp = tfp;
 885         return 0;
 886 }
 887
 888 /* Function to get the tfp session details from the ulp context. */
 889 struct tf *
 890 bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp)
 891 {
 892         if (!ulp) {
 893                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 894                 return NULL;
 895         }
 896         /* TBD The tfp should be removed once tf_attach is implemented. */
 897         return ulp->g_tfp;
 898 }
 899
 900 /*
 901  * Get the device table entry based on the device id.
 902  *
 903  * dev_id [in] The device id of the hardware
 904  *
 905  * Returns the pointer to the device parameters.
 906  */
 907 struct bnxt_ulp_device_params *
 908 bnxt_ulp_device_params_get(uint32_t dev_id)
 909 {
 910         if (dev_id < BNXT_ULP_MAX_NUM_DEVICES)
 911                 return &ulp_device_params[dev_id];
 912         return NULL;
 913 }
 914
 915 /* Function to set the flow database to the ulp context. */
 916 int32_t
 917 bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
 918                                 struct bnxt_ulp_flow_db *flow_db)
 919 {
 920         if (!ulp_ctx || !ulp_ctx->cfg_data)
 921                 return -EINVAL;
 922
 923         ulp_ctx->cfg_data->flow_db = flow_db;
 924         return 0;
 925 }
 926
 927 /* Function to get the flow database from the ulp context. */
 928 struct bnxt_ulp_flow_db *
 929 bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx)
 930 {
 931         if (!ulp_ctx || !ulp_ctx->cfg_data)
 932                 return NULL;
 933
 934         return ulp_ctx->cfg_data->flow_db;
 935 }
 936
 937 /* Function to get the ulp context from eth device. */
 938 struct bnxt_ulp_context *
 939 bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev      *dev)
 940 {
 941         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
 942
 943         if (BNXT_ETH_DEV_IS_REPRESENTOR(dev)) {
 944                 struct bnxt_vf_representor *vfr = dev->data->dev_private;
 945                 bp = vfr->parent_dev->data->dev_private;
 946         }
 947
 948         if (!bp) {
 949                 BNXT_TF_DBG(ERR, "Bnxt private data is not initialized\n");
 950                 return NULL;
 951         }
 952         return bp->ulp_ctx;
 953 }
 954
 955 int32_t
 956 bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
 957                                     void *mapper_data)
 958 {
 959         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 960                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 961                 return -EINVAL;
 962         }
 963
 964         ulp_ctx->cfg_data->mapper_data = mapper_data;
 965         return 0;
 966 }
 967
 968 void *
 969 bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx)
 970 {
 971         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 972                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 973                 return NULL;
 974         }
 975
 976         return ulp_ctx->cfg_data->mapper_data;
 977 }
 978
 979 /* Function to set the port database to the ulp context. */
 980 int32_t
 981 bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
 982                                 struct bnxt_ulp_port_db *port_db)
 983 {
 984         if (!ulp_ctx || !ulp_ctx->cfg_data)
 985                 return -EINVAL;
 986
 987         ulp_ctx->cfg_data->port_db = port_db;
 988         return 0;
 989 }
 990
 991 /* Function to get the port database from the ulp context. */
 992 struct bnxt_ulp_port_db *
 993 bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx)
 994 {
 995         if (!ulp_ctx || !ulp_ctx->cfg_data)
 996                 return NULL;
 997
 998         return ulp_ctx->cfg_data->port_db;
 999 }
1000
1001 /* Function to set the flow counter info into the context */
1002 int32_t
1003 bnxt_ulp_cntxt_ptr2_fc_info_set(struct bnxt_ulp_context *ulp_ctx,
1004                                 struct bnxt_ulp_fc_info *ulp_fc_info)
1005 {
1006         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1007                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1008                 return -EINVAL;
1009         }
1010
1011         ulp_ctx->cfg_data->fc_info = ulp_fc_info;
1012
1013         return 0;
1014 }
1015
1016 /* Function to retrieve the flow counter info from the context. */
1017 struct bnxt_ulp_fc_info *
1018 bnxt_ulp_cntxt_ptr2_fc_info_get(struct bnxt_ulp_context *ulp_ctx)
1019 {
1020         if (!ulp_ctx || !ulp_ctx->cfg_data)
1021                 return NULL;
1022
1023         return ulp_ctx->cfg_data->fc_info;
1024 }
1025
1026 /* Function to get the ulp flags from the ulp context. */
1027 int32_t
1028 bnxt_ulp_cntxt_ptr2_ulp_flags_get(struct bnxt_ulp_context *ulp_ctx,
1029                                   uint32_t *flags)
1030 {
1031         if (!ulp_ctx || !ulp_ctx->cfg_data)
1032                 return -1;
1033
1034         *flags =  ulp_ctx->cfg_data->ulp_flags;
1035         return 0;
1036 }