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  * Internal api to enable NAT feature.
 601  * Set set_flag to 1 to set the value or zero to reset the value.
 602  * returns 0 on success.
 603  */
 604 static int32_t
 605 bnxt_ulp_global_cfg_update(struct bnxt *bp,
 606                            enum tf_dir dir,
 607                            enum tf_global_config_type type,
 608                            uint32_t offset,
 609                            uint32_t value,
 610                            uint32_t set_flag)
 611 {
 612         uint32_t global_cfg = 0;
 613         int rc;
 614         struct tf_global_cfg_parms parms;
 615
 616         /* Initialize the params */
 617         parms.dir = dir,
 618         parms.type = type,
 619         parms.offset = offset,
 620         parms.config = (uint8_t *)&global_cfg,
 621         parms.config_sz_in_bytes = sizeof(global_cfg);
 622
 623         rc = tf_get_global_cfg(&bp->tfp, &parms);
 624         if (rc) {
 625                 BNXT_TF_DBG(ERR, "Failed to get global cfg 0x%x rc:%d\n",
 626                             type, rc);
 627                 return rc;
 628         }
 629
 630         if (set_flag)
 631                 global_cfg |= value;
 632         else
 633                 global_cfg &= ~value;
 634
 635         /* SET the register RE_CFA_REG_ACT_TECT */
 636         rc = tf_set_global_cfg(&bp->tfp, &parms);
 637         if (rc) {
 638                 BNXT_TF_DBG(ERR, "Failed to set global cfg 0x%x rc:%d\n",
 639                             type, rc);
 640                 return rc;
 641         }
 642         return rc;
 643 }
 644
 645 /*
 646  * When a port is initialized by dpdk. This functions is called
 647  * and this function initializes the ULP context and rest of the
 648  * infrastructure associated with it.
 649  */
 650 int32_t
 651 bnxt_ulp_init(struct bnxt *bp)
 652 {
 653         struct bnxt_ulp_session_state *session;
 654         bool init;
 655         int rc;
 656
 657         if (bp->ulp_ctx) {
 658                 BNXT_TF_DBG(DEBUG, "ulp ctx already allocated\n");
 659                 return -EINVAL;
 660         }
 661
 662         /*
 663          * Multiple uplink ports can be associated with a single vswitch.
 664          * Make sure only the port that is started first will initialize
 665          * the TF session.
 666          */
 667         session = ulp_session_init(bp, &init);
 668         if (!session) {
 669                 BNXT_TF_DBG(ERR, "Failed to initialize the tf session\n");
 670                 return -EINVAL;
 671         }
 672
 673         bp->ulp_ctx = rte_zmalloc("bnxt_ulp_ctx",
 674                                   sizeof(struct bnxt_ulp_context), 0);
 675         if (!bp->ulp_ctx) {
 676                 BNXT_TF_DBG(ERR, "Failed to allocate ulp ctx\n");
 677                 ulp_session_deinit(session);
 678                 return -ENOMEM;
 679         }
 680
 681         /*
 682          * If ULP is already initialized for a specific domain then simply
 683          * assign the ulp context to this rte_eth_dev.
 684          */
 685         if (init) {
 686                 rc = ulp_ctx_attach(bp->ulp_ctx, session);
 687                 if (rc) {
 688                         BNXT_TF_DBG(ERR,
 689                                     "Failed to attach the ulp context\n");
 690                         ulp_session_deinit(session);
 691                         rte_free(bp->ulp_ctx);
 692                         return rc;
 693                 }
 694
 695                 /* Update bnxt driver flags */
 696                 rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 697                 if (rc) {
 698                         BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 699                         ulp_ctx_detach(bp, session);
 700                         ulp_session_deinit(session);
 701                         rte_free(bp->ulp_ctx);
 702                         return rc;
 703                 }
 704
 705                 /* update the port database */
 706                 rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 707                 if (rc) {
 708                         BNXT_TF_DBG(ERR,
 709                                     "Failed to update port database\n");
 710                         ulp_ctx_detach(bp, session);
 711                         ulp_session_deinit(session);
 712                         rte_free(bp->ulp_ctx);
 713                 }
 714                 return rc;
 715         }
 716
 717         /* Allocate and Initialize the ulp context. */
 718         rc = ulp_ctx_init(bp, session);
 719         if (rc) {
 720                 BNXT_TF_DBG(ERR, "Failed to create the ulp context\n");
 721                 goto jump_to_error;
 722         }
 723
 724         /* Initialize ulp dparms with values devargs passed */
 725         rc = ulp_dparms_init(bp, bp->ulp_ctx);
 726
 727         /* create the port database */
 728         rc = ulp_port_db_init(bp->ulp_ctx, bp->port_cnt);
 729         if (rc) {
 730                 BNXT_TF_DBG(ERR, "Failed to create the port database\n");
 731                 goto jump_to_error;
 732         }
 733
 734         /* Update bnxt driver flags */
 735         rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 736         if (rc) {
 737                 BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 738                 goto jump_to_error;
 739         }
 740
 741         /* update the port database */
 742         rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 743         if (rc) {
 744                 BNXT_TF_DBG(ERR, "Failed to update port database\n");
 745                 goto jump_to_error;
 746         }
 747
 748         /* Create the Mark database. */
 749         rc = ulp_mark_db_init(bp->ulp_ctx);
 750         if (rc) {
 751                 BNXT_TF_DBG(ERR, "Failed to create the mark database\n");
 752                 goto jump_to_error;
 753         }
 754
 755         /* Create the flow database. */
 756         rc = ulp_flow_db_init(bp->ulp_ctx);
 757         if (rc) {
 758                 BNXT_TF_DBG(ERR, "Failed to create the flow database\n");
 759                 goto jump_to_error;
 760         }
 761
 762         /* Create the eem table scope. */
 763         rc = ulp_eem_tbl_scope_init(bp);
 764         if (rc) {
 765                 BNXT_TF_DBG(ERR, "Failed to create the eem scope table\n");
 766                 goto jump_to_error;
 767         }
 768
 769         rc = ulp_mapper_init(bp->ulp_ctx);
 770         if (rc) {
 771                 BNXT_TF_DBG(ERR, "Failed to initialize ulp mapper\n");
 772                 goto jump_to_error;
 773         }
 774
 775         rc = ulp_fc_mgr_init(bp->ulp_ctx);
 776         if (rc) {
 777                 BNXT_TF_DBG(ERR, "Failed to initialize ulp flow counter mgr\n");
 778                 goto jump_to_error;
 779         }
 780
 781         /*
 782          * Enable NAT feature. Set the global configuration register
 783          * Tunnel encap to enable NAT with the reuse of existing inner
 784          * L2 header smac and dmac
 785          */
 786         rc = bnxt_ulp_global_cfg_update(bp, TF_DIR_RX, TF_TUNNEL_ENCAP,
 787                                         TF_TUNNEL_ENCAP_NAT,
 788                                         (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 789                                         BNXT_ULP_NAT_INNER_L2_HEADER_DMAC), 1);
 790         if (rc) {
 791                 BNXT_TF_DBG(ERR, "Failed to set rx global configuration\n");
 792                 goto jump_to_error;
 793         }
 794
 795         rc = bnxt_ulp_global_cfg_update(bp, TF_DIR_TX, TF_TUNNEL_ENCAP,
 796                                         TF_TUNNEL_ENCAP_NAT,
 797                                         (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 798                                         BNXT_ULP_NAT_INNER_L2_HEADER_DMAC), 1);
 799         if (rc) {
 800                 BNXT_TF_DBG(ERR, "Failed to set tx global configuration\n");
 801                 goto jump_to_error;
 802         }
 803
 804         return rc;
 805
 806 jump_to_error:
 807         bnxt_ulp_deinit(bp);
 808         return -ENOMEM;
 809 }
 810
 811 /* Below are the access functions to access internal data of ulp context. */
 812
 813 /*
 814  * When a port is deinit'ed by dpdk. This function is called
 815  * and this function clears the ULP context and rest of the
 816  * infrastructure associated with it.
 817  */
 818 void
 819 bnxt_ulp_deinit(struct bnxt *bp)
 820 {
 821         struct bnxt_ulp_session_state   *session;
 822         struct rte_pci_device           *pci_dev;
 823         struct rte_pci_addr             *pci_addr;
 824
 825         /* Get the session first */
 826         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 827         pci_addr = &pci_dev->addr;
 828         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 829         session = ulp_get_session(pci_addr);
 830         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 831
 832         /* session not found then just exit */
 833         if (!session)
 834                 return;
 835
 836         /* clean up regular flows */
 837         ulp_flow_db_flush_flows(bp->ulp_ctx, BNXT_ULP_REGULAR_FLOW_TABLE);
 838
 839         /* cleanup the eem table scope */
 840         ulp_eem_tbl_scope_deinit(bp, bp->ulp_ctx);
 841
 842         /* cleanup the flow database */
 843         ulp_flow_db_deinit(bp->ulp_ctx);
 844
 845         /* Delete the Mark database */
 846         ulp_mark_db_deinit(bp->ulp_ctx);
 847
 848         /* cleanup the ulp mapper */
 849         ulp_mapper_deinit(bp->ulp_ctx);
 850
 851         /* Delete the Flow Counter Manager */
 852         ulp_fc_mgr_deinit(bp->ulp_ctx);
 853
 854         /* Delete the Port database */
 855         ulp_port_db_deinit(bp->ulp_ctx);
 856
 857         /* Disable NAT feature */
 858         (void)bnxt_ulp_global_cfg_update(bp, TF_DIR_RX, TF_TUNNEL_ENCAP,
 859                                          TF_TUNNEL_ENCAP_NAT,
 860                                          (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 861                                           BNXT_ULP_NAT_INNER_L2_HEADER_DMAC),
 862                                          0);
 863
 864         (void)bnxt_ulp_global_cfg_update(bp, TF_DIR_TX, TF_TUNNEL_ENCAP,
 865                                          TF_TUNNEL_ENCAP_NAT,
 866                                          (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 867                                           BNXT_ULP_NAT_INNER_L2_HEADER_DMAC),
 868                                          0);
 869
 870         /* Delete the ulp context and tf session */
 871         ulp_ctx_detach(bp, session);
 872
 873         /* Finally delete the bnxt session*/
 874         ulp_session_deinit(session);
 875
 876         rte_free(bp->ulp_ctx);
 877 }
 878
 879 /* Function to set the Mark DB into the context */
 880 int32_t
 881 bnxt_ulp_cntxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
 882                                 struct bnxt_ulp_mark_tbl *mark_tbl)
 883 {
 884         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 885                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 886                 return -EINVAL;
 887         }
 888
 889         ulp_ctx->cfg_data->mark_tbl = mark_tbl;
 890
 891         return 0;
 892 }
 893
 894 /* Function to retrieve the Mark DB from the context. */
 895 struct bnxt_ulp_mark_tbl *
 896 bnxt_ulp_cntxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx)
 897 {
 898         if (!ulp_ctx || !ulp_ctx->cfg_data)
 899                 return NULL;
 900
 901         return ulp_ctx->cfg_data->mark_tbl;
 902 }
 903
 904 /* Function to set the device id of the hardware. */
 905 int32_t
 906 bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx,
 907                           uint32_t dev_id)
 908 {
 909         if (ulp_ctx && ulp_ctx->cfg_data) {
 910                 ulp_ctx->cfg_data->dev_id = dev_id;
 911                 return 0;
 912         }
 913
 914         return -EINVAL;
 915 }
 916
 917 /* Function to get the device id of the hardware. */
 918 int32_t
 919 bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx,
 920                           uint32_t *dev_id)
 921 {
 922         if (ulp_ctx && ulp_ctx->cfg_data) {
 923                 *dev_id = ulp_ctx->cfg_data->dev_id;
 924                 return 0;
 925         }
 926
 927         return -EINVAL;
 928 }
 929
 930 /* Function to get the table scope id of the EEM table. */
 931 int32_t
 932 bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
 933                                 uint32_t *tbl_scope_id)
 934 {
 935         if (ulp_ctx && ulp_ctx->cfg_data) {
 936                 *tbl_scope_id = ulp_ctx->cfg_data->tbl_scope_id;
 937                 return 0;
 938         }
 939
 940         return -EINVAL;
 941 }
 942
 943 /* Function to set the table scope id of the EEM table. */
 944 int32_t
 945 bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
 946                                 uint32_t tbl_scope_id)
 947 {
 948         if (ulp_ctx && ulp_ctx->cfg_data) {
 949                 ulp_ctx->cfg_data->tbl_scope_id = tbl_scope_id;
 950                 return 0;
 951         }
 952
 953         return -EINVAL;
 954 }
 955
 956 /* Function to set the tfp session details from the ulp context. */
 957 int32_t
 958 bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp)
 959 {
 960         if (!ulp) {
 961                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 962                 return -EINVAL;
 963         }
 964
 965         /* TBD The tfp should be removed once tf_attach is implemented. */
 966         ulp->g_tfp = tfp;
 967         return 0;
 968 }
 969
 970 /* Function to get the tfp session details from the ulp context. */
 971 struct tf *
 972 bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp)
 973 {
 974         if (!ulp) {
 975                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 976                 return NULL;
 977         }
 978         /* TBD The tfp should be removed once tf_attach is implemented. */
 979         return ulp->g_tfp;
 980 }
 981
 982 /*
 983  * Get the device table entry based on the device id.
 984  *
 985  * dev_id [in] The device id of the hardware
 986  *
 987  * Returns the pointer to the device parameters.
 988  */
 989 struct bnxt_ulp_device_params *
 990 bnxt_ulp_device_params_get(uint32_t dev_id)
 991 {
 992         if (dev_id < BNXT_ULP_MAX_NUM_DEVICES)
 993                 return &ulp_device_params[dev_id];
 994         return NULL;
 995 }
 996
 997 /* Function to set the flow database to the ulp context. */
 998 int32_t
 999 bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
1000                                 struct bnxt_ulp_flow_db *flow_db)
1001 {
1002         if (!ulp_ctx || !ulp_ctx->cfg_data)
1003                 return -EINVAL;
1004
1005         ulp_ctx->cfg_data->flow_db = flow_db;
1006         return 0;
1007 }
1008
1009 /* Function to get the flow database from the ulp context. */
1010 struct bnxt_ulp_flow_db *
1011 bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx)
1012 {
1013         if (!ulp_ctx || !ulp_ctx->cfg_data)
1014                 return NULL;
1015
1016         return ulp_ctx->cfg_data->flow_db;
1017 }
1018
1019 /* Function to get the ulp context from eth device. */
1020 struct bnxt_ulp_context *
1021 bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev      *dev)
1022 {
1023         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
1024
1025         if (BNXT_ETH_DEV_IS_REPRESENTOR(dev)) {
1026                 struct bnxt_vf_representor *vfr = dev->data->dev_private;
1027
1028                 bp = vfr->parent_dev->data->dev_private;
1029         }
1030
1031         if (!bp) {
1032                 BNXT_TF_DBG(ERR, "Bnxt private data is not initialized\n");
1033                 return NULL;
1034         }
1035         return bp->ulp_ctx;
1036 }
1037
1038 int32_t
1039 bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
1040                                     void *mapper_data)
1041 {
1042         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1043                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1044                 return -EINVAL;
1045         }
1046
1047         ulp_ctx->cfg_data->mapper_data = mapper_data;
1048         return 0;
1049 }
1050
1051 void *
1052 bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx)
1053 {
1054         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1055                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1056                 return NULL;
1057         }
1058
1059         return ulp_ctx->cfg_data->mapper_data;
1060 }
1061
1062 /* Function to set the port database to the ulp context. */
1063 int32_t
1064 bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
1065                                 struct bnxt_ulp_port_db *port_db)
1066 {
1067         if (!ulp_ctx || !ulp_ctx->cfg_data)
1068                 return -EINVAL;
1069
1070         ulp_ctx->cfg_data->port_db = port_db;
1071         return 0;
1072 }
1073
1074 /* Function to get the port database from the ulp context. */
1075 struct bnxt_ulp_port_db *
1076 bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx)
1077 {
1078         if (!ulp_ctx || !ulp_ctx->cfg_data)
1079                 return NULL;
1080
1081         return ulp_ctx->cfg_data->port_db;
1082 }
1083
1084 /* Function to set the flow counter info into the context */
1085 int32_t
1086 bnxt_ulp_cntxt_ptr2_fc_info_set(struct bnxt_ulp_context *ulp_ctx,
1087                                 struct bnxt_ulp_fc_info *ulp_fc_info)
1088 {
1089         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1090                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1091                 return -EINVAL;
1092         }
1093
1094         ulp_ctx->cfg_data->fc_info = ulp_fc_info;
1095
1096         return 0;
1097 }
1098
1099 /* Function to retrieve the flow counter info from the context. */
1100 struct bnxt_ulp_fc_info *
1101 bnxt_ulp_cntxt_ptr2_fc_info_get(struct bnxt_ulp_context *ulp_ctx)
1102 {
1103         if (!ulp_ctx || !ulp_ctx->cfg_data)
1104                 return NULL;
1105
1106         return ulp_ctx->cfg_data->fc_info;
1107 }
1108
1109 /* Function to get the ulp flags from the ulp context. */
1110 int32_t
1111 bnxt_ulp_cntxt_ptr2_ulp_flags_get(struct bnxt_ulp_context *ulp_ctx,
1112                                   uint32_t *flags)
1113 {
1114         if (!ulp_ctx || !ulp_ctx->cfg_data)
1115                 return -1;
1116
1117         *flags =  ulp_ctx->cfg_data->ulp_flags;
1118         return 0;
1119 }