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.h"
  13 #include "bnxt_ulp.h"
  14 #include "bnxt_tf_common.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
 385         bnxt_ulp_cntxt_tfp_set(bp->ulp_ctx, session->g_tfp);
 386         return rc;
 387 }
 388
 389 /* The function to initialize ulp dparms with devargs */
 390 static int32_t
 391 ulp_dparms_init(struct bnxt *bp,
 392                 struct bnxt_ulp_context *ulp_ctx)
 393 {
 394         struct bnxt_ulp_device_params *dparms;
 395         uint32_t dev_id;
 396
 397         if (!bp->max_num_kflows)
 398                 return -EINVAL;
 399
 400         if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &dev_id)) {
 401                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
 402                 return -EINVAL;
 403         }
 404
 405         dparms = bnxt_ulp_device_params_get(dev_id);
 406         if (!dparms) {
 407                 BNXT_TF_DBG(DEBUG, "Failed to get device parms\n");
 408                 return -EINVAL;
 409         }
 410
 411         /* num_flows = max_num_kflows * 1024 */
 412         dparms->flow_db_num_entries = bp->max_num_kflows * 1024;
 413         /* GFID =  2 * num_flows */
 414         dparms->mark_db_gfid_entries = dparms->flow_db_num_entries * 2;
 415         BNXT_TF_DBG(DEBUG, "Set the number of flows = %"PRIu64"\n",
 416                     dparms->flow_db_num_entries);
 417
 418         return 0;
 419 }
 420
 421 /* The function to initialize bp flags with truflow features */
 422 static int32_t
 423 ulp_dparms_dev_port_intf_update(struct bnxt *bp,
 424                                 struct bnxt_ulp_context *ulp_ctx)
 425 {
 426         struct bnxt_ulp_device_params *dparms;
 427         uint32_t dev_id;
 428
 429         if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &dev_id)) {
 430                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
 431                 return -EINVAL;
 432         }
 433
 434         dparms = bnxt_ulp_device_params_get(dev_id);
 435         if (!dparms) {
 436                 BNXT_TF_DBG(DEBUG, "Failed to get device parms\n");
 437                 return -EINVAL;
 438         }
 439
 440         /* Update the bp flag with gfid flag */
 441         if (dparms->flow_mem_type == BNXT_ULP_FLOW_MEM_TYPE_EXT)
 442                 bp->flags |= BNXT_FLAG_GFID_ENABLE;
 443
 444         return 0;
 445 }
 446
 447 static int32_t
 448 ulp_ctx_attach(struct bnxt_ulp_context *ulp_ctx,
 449                struct bnxt_ulp_session_state *session)
 450 {
 451         if (!ulp_ctx || !session) {
 452                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 453                 return -EINVAL;
 454         }
 455
 456         /* Increment the ulp context data reference count usage. */
 457         ulp_ctx->cfg_data = session->cfg_data;
 458         ulp_ctx->cfg_data->ref_cnt++;
 459
 460         /* TBD call TF_session_attach. */
 461         ulp_ctx->g_tfp = session->g_tfp;
 462         return 0;
 463 }
 464
 465 static int32_t
 466 ulp_ctx_detach(struct bnxt *bp,
 467                struct bnxt_ulp_session_state *session)
 468 {
 469         struct bnxt_ulp_context *ulp_ctx;
 470
 471         if (!bp || !session) {
 472                 BNXT_TF_DBG(ERR, "Invalid Arguments\n");
 473                 return -EINVAL;
 474         }
 475         ulp_ctx = bp->ulp_ctx;
 476
 477         if (!ulp_ctx->cfg_data)
 478                 return 0;
 479
 480         /* TBD call TF_session_detach */
 481
 482         /* Increment the ulp context data reference count usage. */
 483         if (ulp_ctx->cfg_data->ref_cnt >= 1) {
 484                 ulp_ctx->cfg_data->ref_cnt--;
 485                 if (ulp_ctx_deinit_allowed(bp))
 486                         ulp_ctx_deinit(bp, session);
 487                 ulp_ctx->cfg_data = NULL;
 488                 ulp_ctx->g_tfp = NULL;
 489                 return 0;
 490         }
 491         BNXT_TF_DBG(ERR, "context deatach on invalid data\n");
 492         return 0;
 493 }
 494
 495 /*
 496  * Initialize the state of an ULP session.
 497  * If the state of an ULP session is not initialized, set it's state to
 498  * initialized. If the state is already initialized, do nothing.
 499  */
 500 static void
 501 ulp_context_initialized(struct bnxt_ulp_session_state *session, bool *init)
 502 {
 503         pthread_mutex_lock(&session->bnxt_ulp_mutex);
 504
 505         if (!session->bnxt_ulp_init) {
 506                 session->bnxt_ulp_init = true;
 507                 *init = false;
 508         } else {
 509                 *init = true;
 510         }
 511
 512         pthread_mutex_unlock(&session->bnxt_ulp_mutex);
 513 }
 514
 515 /*
 516  * Check if an ULP session is already allocated for a specific PCI
 517  * domain & bus. If it is already allocated simply return the session
 518  * pointer, otherwise allocate a new session.
 519  */
 520 static struct bnxt_ulp_session_state *
 521 ulp_get_session(struct rte_pci_addr *pci_addr)
 522 {
 523         struct bnxt_ulp_session_state *session;
 524
 525         STAILQ_FOREACH(session, &bnxt_ulp_session_list, next) {
 526                 if (session->pci_info.domain == pci_addr->domain &&
 527                     session->pci_info.bus == pci_addr->bus) {
 528                         return session;
 529                 }
 530         }
 531         return NULL;
 532 }
 533
 534 /*
 535  * Allocate and Initialize an ULP session and set it's state to INITIALIZED.
 536  * If it's already initialized simply return the already existing session.
 537  */
 538 static struct bnxt_ulp_session_state *
 539 ulp_session_init(struct bnxt *bp,
 540                  bool *init)
 541 {
 542         struct rte_pci_device           *pci_dev;
 543         struct rte_pci_addr             *pci_addr;
 544         struct bnxt_ulp_session_state   *session;
 545
 546         if (!bp)
 547                 return NULL;
 548
 549         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 550         pci_addr = &pci_dev->addr;
 551
 552         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 553
 554         session = ulp_get_session(pci_addr);
 555         if (!session) {
 556                 /* Not Found the session  Allocate a new one */
 557                 session = rte_zmalloc("bnxt_ulp_session",
 558                                       sizeof(struct bnxt_ulp_session_state),
 559                                       0);
 560                 if (!session) {
 561                         BNXT_TF_DBG(ERR,
 562                                     "Allocation failed for bnxt_ulp_session\n");
 563                         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 564                         return NULL;
 565
 566                 } else {
 567                         /* Add it to the queue */
 568                         session->pci_info.domain = pci_addr->domain;
 569                         session->pci_info.bus = pci_addr->bus;
 570                         pthread_mutex_init(&session->bnxt_ulp_mutex, NULL);
 571                         STAILQ_INSERT_TAIL(&bnxt_ulp_session_list,
 572                                            session, next);
 573                 }
 574         }
 575         ulp_context_initialized(session, init);
 576         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 577         return session;
 578 }
 579
 580 /*
 581  * When a device is closed, remove it's associated session from the global
 582  * session list.
 583  */
 584 static void
 585 ulp_session_deinit(struct bnxt_ulp_session_state *session)
 586 {
 587         if (!session)
 588                 return;
 589
 590         if (!session->cfg_data) {
 591                 pthread_mutex_lock(&bnxt_ulp_global_mutex);
 592                 STAILQ_REMOVE(&bnxt_ulp_session_list, session,
 593                               bnxt_ulp_session_state, next);
 594                 pthread_mutex_destroy(&session->bnxt_ulp_mutex);
 595                 rte_free(session);
 596                 pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 597         }
 598 }
 599
 600 /*
 601  * Internal api to enable NAT feature.
 602  * Set set_flag to 1 to set the value or zero to reset the value.
 603  * returns 0 on success.
 604  */
 605 static int32_t
 606 bnxt_ulp_global_cfg_update(struct bnxt *bp,
 607                            enum tf_dir dir,
 608                            enum tf_global_config_type type,
 609                            uint32_t offset,
 610                            uint32_t value,
 611                            uint32_t set_flag)
 612 {
 613         uint32_t global_cfg = 0;
 614         int rc;
 615         struct tf_global_cfg_parms parms;
 616
 617         /* Initialize the params */
 618         parms.dir = dir,
 619         parms.type = type,
 620         parms.offset = offset,
 621         parms.config = (uint8_t *)&global_cfg,
 622         parms.config_sz_in_bytes = sizeof(global_cfg);
 623
 624         rc = tf_get_global_cfg(&bp->tfp, &parms);
 625         if (rc) {
 626                 BNXT_TF_DBG(ERR, "Failed to get global cfg 0x%x rc:%d\n",
 627                             type, rc);
 628                 return rc;
 629         }
 630
 631         if (set_flag)
 632                 global_cfg |= value;
 633         else
 634                 global_cfg &= ~value;
 635
 636         /* SET the register RE_CFA_REG_ACT_TECT */
 637         rc = tf_set_global_cfg(&bp->tfp, &parms);
 638         if (rc) {
 639                 BNXT_TF_DBG(ERR, "Failed to set global cfg 0x%x rc:%d\n",
 640                             type, rc);
 641                 return rc;
 642         }
 643         return rc;
 644 }
 645
 646 /*
 647  * When a port is initialized by dpdk. This functions is called
 648  * and this function initializes the ULP context and rest of the
 649  * infrastructure associated with it.
 650  */
 651 int32_t
 652 bnxt_ulp_init(struct bnxt *bp)
 653 {
 654         struct bnxt_ulp_session_state *session;
 655         bool init;
 656         int rc;
 657
 658         if (!BNXT_TRUFLOW_EN(bp))
 659                 return 0;
 660
 661         if (bp->ulp_ctx) {
 662                 BNXT_TF_DBG(DEBUG, "ulp ctx already allocated\n");
 663                 return -EINVAL;
 664         }
 665
 666         /*
 667          * Multiple uplink ports can be associated with a single vswitch.
 668          * Make sure only the port that is started first will initialize
 669          * the TF session.
 670          */
 671         session = ulp_session_init(bp, &init);
 672         if (!session) {
 673                 BNXT_TF_DBG(ERR, "Failed to initialize the tf session\n");
 674                 return -EINVAL;
 675         }
 676
 677         bp->ulp_ctx = rte_zmalloc("bnxt_ulp_ctx",
 678                                   sizeof(struct bnxt_ulp_context), 0);
 679         if (!bp->ulp_ctx) {
 680                 BNXT_TF_DBG(ERR, "Failed to allocate ulp ctx\n");
 681                 ulp_session_deinit(session);
 682                 return -ENOMEM;
 683         }
 684
 685         /*
 686          * If ULP is already initialized for a specific domain then simply
 687          * assign the ulp context to this rte_eth_dev.
 688          */
 689         if (init) {
 690                 rc = ulp_ctx_attach(bp->ulp_ctx, session);
 691                 if (rc) {
 692                         BNXT_TF_DBG(ERR,
 693                                     "Failed to attach the ulp context\n");
 694                         ulp_session_deinit(session);
 695                         rte_free(bp->ulp_ctx);
 696                         return rc;
 697                 }
 698
 699                 /* Update bnxt driver flags */
 700                 rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 701                 if (rc) {
 702                         BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 703                         ulp_ctx_detach(bp, session);
 704                         ulp_session_deinit(session);
 705                         rte_free(bp->ulp_ctx);
 706                         return rc;
 707                 }
 708
 709                 /* update the port database */
 710                 rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 711                 if (rc) {
 712                         BNXT_TF_DBG(ERR,
 713                                     "Failed to update port database\n");
 714                         ulp_ctx_detach(bp, session);
 715                         ulp_session_deinit(session);
 716                         rte_free(bp->ulp_ctx);
 717                 }
 718                 return rc;
 719         }
 720
 721         /* Allocate and Initialize the ulp context. */
 722         rc = ulp_ctx_init(bp, session);
 723         if (rc) {
 724                 BNXT_TF_DBG(ERR, "Failed to create the ulp context\n");
 725                 goto jump_to_error;
 726         }
 727
 728         /* Initialize ulp dparms with values devargs passed */
 729         rc = ulp_dparms_init(bp, bp->ulp_ctx);
 730
 731         /* create the port database */
 732         rc = ulp_port_db_init(bp->ulp_ctx, bp->port_cnt);
 733         if (rc) {
 734                 BNXT_TF_DBG(ERR, "Failed to create the port database\n");
 735                 goto jump_to_error;
 736         }
 737
 738         /* Update bnxt driver flags */
 739         rc = ulp_dparms_dev_port_intf_update(bp, bp->ulp_ctx);
 740         if (rc) {
 741                 BNXT_TF_DBG(ERR, "Failed to update driver flags\n");
 742                 goto jump_to_error;
 743         }
 744
 745         /* update the port database */
 746         rc = ulp_port_db_dev_port_intf_update(bp->ulp_ctx, bp->eth_dev);
 747         if (rc) {
 748                 BNXT_TF_DBG(ERR, "Failed to update port database\n");
 749                 goto jump_to_error;
 750         }
 751
 752         /* Create the Mark database. */
 753         rc = ulp_mark_db_init(bp->ulp_ctx);
 754         if (rc) {
 755                 BNXT_TF_DBG(ERR, "Failed to create the mark database\n");
 756                 goto jump_to_error;
 757         }
 758
 759         /* Create the flow database. */
 760         rc = ulp_flow_db_init(bp->ulp_ctx);
 761         if (rc) {
 762                 BNXT_TF_DBG(ERR, "Failed to create the flow database\n");
 763                 goto jump_to_error;
 764         }
 765
 766         /* Create the eem table scope. */
 767         rc = ulp_eem_tbl_scope_init(bp);
 768         if (rc) {
 769                 BNXT_TF_DBG(ERR, "Failed to create the eem scope table\n");
 770                 goto jump_to_error;
 771         }
 772
 773         rc = ulp_mapper_init(bp->ulp_ctx);
 774         if (rc) {
 775                 BNXT_TF_DBG(ERR, "Failed to initialize ulp mapper\n");
 776                 goto jump_to_error;
 777         }
 778
 779         rc = ulp_fc_mgr_init(bp->ulp_ctx);
 780         if (rc) {
 781                 BNXT_TF_DBG(ERR, "Failed to initialize ulp flow counter mgr\n");
 782                 goto jump_to_error;
 783         }
 784
 785         /*
 786          * Enable NAT feature. Set the global configuration register
 787          * Tunnel encap to enable NAT with the reuse of existing inner
 788          * L2 header smac and dmac
 789          */
 790         rc = bnxt_ulp_global_cfg_update(bp, TF_DIR_RX, TF_TUNNEL_ENCAP,
 791                                         TF_TUNNEL_ENCAP_NAT,
 792                                         (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 793                                         BNXT_ULP_NAT_INNER_L2_HEADER_DMAC), 1);
 794         if (rc) {
 795                 BNXT_TF_DBG(ERR, "Failed to set rx global configuration\n");
 796                 goto jump_to_error;
 797         }
 798
 799         rc = bnxt_ulp_global_cfg_update(bp, TF_DIR_TX, TF_TUNNEL_ENCAP,
 800                                         TF_TUNNEL_ENCAP_NAT,
 801                                         (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 802                                         BNXT_ULP_NAT_INNER_L2_HEADER_DMAC), 1);
 803         if (rc) {
 804                 BNXT_TF_DBG(ERR, "Failed to set tx global configuration\n");
 805                 goto jump_to_error;
 806         }
 807
 808         return rc;
 809
 810 jump_to_error:
 811         bnxt_ulp_deinit(bp);
 812         return -ENOMEM;
 813 }
 814
 815 /* Below are the access functions to access internal data of ulp context. */
 816
 817 /*
 818  * When a port is deinit'ed by dpdk. This function is called
 819  * and this function clears the ULP context and rest of the
 820  * infrastructure associated with it.
 821  */
 822 void
 823 bnxt_ulp_deinit(struct bnxt *bp)
 824 {
 825         struct bnxt_ulp_session_state   *session;
 826         struct rte_pci_device           *pci_dev;
 827         struct rte_pci_addr             *pci_addr;
 828
 829         if (!BNXT_TRUFLOW_EN(bp))
 830                 return;
 831
 832         /* Get the session first */
 833         pci_dev = RTE_DEV_TO_PCI(bp->eth_dev->device);
 834         pci_addr = &pci_dev->addr;
 835         pthread_mutex_lock(&bnxt_ulp_global_mutex);
 836         session = ulp_get_session(pci_addr);
 837         pthread_mutex_unlock(&bnxt_ulp_global_mutex);
 838
 839         /* session not found then just exit */
 840         if (!session)
 841                 return;
 842
 843         /* clean up default flows */
 844         bnxt_ulp_destroy_df_rules(bp, true);
 845
 846         /* clean up regular flows */
 847         ulp_flow_db_flush_flows(bp->ulp_ctx, BNXT_ULP_REGULAR_FLOW_TABLE);
 848
 849         /* cleanup the eem table scope */
 850         ulp_eem_tbl_scope_deinit(bp, bp->ulp_ctx);
 851
 852         /* cleanup the flow database */
 853         ulp_flow_db_deinit(bp->ulp_ctx);
 854
 855         /* Delete the Mark database */
 856         ulp_mark_db_deinit(bp->ulp_ctx);
 857
 858         /* cleanup the ulp mapper */
 859         ulp_mapper_deinit(bp->ulp_ctx);
 860
 861         /* Delete the Flow Counter Manager */
 862         ulp_fc_mgr_deinit(bp->ulp_ctx);
 863
 864         /* Delete the Port database */
 865         ulp_port_db_deinit(bp->ulp_ctx);
 866
 867         /* Disable NAT feature */
 868         (void)bnxt_ulp_global_cfg_update(bp, TF_DIR_RX, TF_TUNNEL_ENCAP,
 869                                          TF_TUNNEL_ENCAP_NAT,
 870                                          (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 871                                           BNXT_ULP_NAT_INNER_L2_HEADER_DMAC),
 872                                          0);
 873
 874         (void)bnxt_ulp_global_cfg_update(bp, TF_DIR_TX, TF_TUNNEL_ENCAP,
 875                                          TF_TUNNEL_ENCAP_NAT,
 876                                          (BNXT_ULP_NAT_INNER_L2_HEADER_SMAC |
 877                                           BNXT_ULP_NAT_INNER_L2_HEADER_DMAC),
 878                                          0);
 879
 880         /* Delete the ulp context and tf session */
 881         ulp_ctx_detach(bp, session);
 882
 883         /* Finally delete the bnxt session*/
 884         ulp_session_deinit(session);
 885
 886         rte_free(bp->ulp_ctx);
 887 }
 888
 889 /* Function to set the Mark DB into the context */
 890 int32_t
 891 bnxt_ulp_cntxt_ptr2_mark_db_set(struct bnxt_ulp_context *ulp_ctx,
 892                                 struct bnxt_ulp_mark_tbl *mark_tbl)
 893 {
 894         if (!ulp_ctx || !ulp_ctx->cfg_data) {
 895                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
 896                 return -EINVAL;
 897         }
 898
 899         ulp_ctx->cfg_data->mark_tbl = mark_tbl;
 900
 901         return 0;
 902 }
 903
 904 /* Function to retrieve the Mark DB from the context. */
 905 struct bnxt_ulp_mark_tbl *
 906 bnxt_ulp_cntxt_ptr2_mark_db_get(struct bnxt_ulp_context *ulp_ctx)
 907 {
 908         if (!ulp_ctx || !ulp_ctx->cfg_data)
 909                 return NULL;
 910
 911         return ulp_ctx->cfg_data->mark_tbl;
 912 }
 913
 914 /* Function to set the device id of the hardware. */
 915 int32_t
 916 bnxt_ulp_cntxt_dev_id_set(struct bnxt_ulp_context *ulp_ctx,
 917                           uint32_t dev_id)
 918 {
 919         if (ulp_ctx && ulp_ctx->cfg_data) {
 920                 ulp_ctx->cfg_data->dev_id = dev_id;
 921                 return 0;
 922         }
 923
 924         return -EINVAL;
 925 }
 926
 927 /* Function to get the device id of the hardware. */
 928 int32_t
 929 bnxt_ulp_cntxt_dev_id_get(struct bnxt_ulp_context *ulp_ctx,
 930                           uint32_t *dev_id)
 931 {
 932         if (ulp_ctx && ulp_ctx->cfg_data) {
 933                 *dev_id = ulp_ctx->cfg_data->dev_id;
 934                 return 0;
 935         }
 936
 937         return -EINVAL;
 938 }
 939
 940 /* Function to get the table scope id of the EEM table. */
 941 int32_t
 942 bnxt_ulp_cntxt_tbl_scope_id_get(struct bnxt_ulp_context *ulp_ctx,
 943                                 uint32_t *tbl_scope_id)
 944 {
 945         if (ulp_ctx && ulp_ctx->cfg_data) {
 946                 *tbl_scope_id = ulp_ctx->cfg_data->tbl_scope_id;
 947                 return 0;
 948         }
 949
 950         return -EINVAL;
 951 }
 952
 953 /* Function to set the table scope id of the EEM table. */
 954 int32_t
 955 bnxt_ulp_cntxt_tbl_scope_id_set(struct bnxt_ulp_context *ulp_ctx,
 956                                 uint32_t tbl_scope_id)
 957 {
 958         if (ulp_ctx && ulp_ctx->cfg_data) {
 959                 ulp_ctx->cfg_data->tbl_scope_id = tbl_scope_id;
 960                 return 0;
 961         }
 962
 963         return -EINVAL;
 964 }
 965
 966 /* Function to set the tfp session details from the ulp context. */
 967 int32_t
 968 bnxt_ulp_cntxt_tfp_set(struct bnxt_ulp_context *ulp, struct tf *tfp)
 969 {
 970         if (!ulp) {
 971                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 972                 return -EINVAL;
 973         }
 974
 975         /* TBD The tfp should be removed once tf_attach is implemented. */
 976         ulp->g_tfp = tfp;
 977         return 0;
 978 }
 979
 980 /* Function to get the tfp session details from the ulp context. */
 981 struct tf *
 982 bnxt_ulp_cntxt_tfp_get(struct bnxt_ulp_context *ulp)
 983 {
 984         if (!ulp) {
 985                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
 986                 return NULL;
 987         }
 988         /* TBD The tfp should be removed once tf_attach is implemented. */
 989         return ulp->g_tfp;
 990 }
 991
 992 /*
 993  * Get the device table entry based on the device id.
 994  *
 995  * dev_id [in] The device id of the hardware
 996  *
 997  * Returns the pointer to the device parameters.
 998  */
 999 struct bnxt_ulp_device_params *
1000 bnxt_ulp_device_params_get(uint32_t dev_id)
1001 {
1002         if (dev_id < BNXT_ULP_MAX_NUM_DEVICES)
1003                 return &ulp_device_params[dev_id];
1004         return NULL;
1005 }
1006
1007 /* Function to set the flow database to the ulp context. */
1008 int32_t
1009 bnxt_ulp_cntxt_ptr2_flow_db_set(struct bnxt_ulp_context *ulp_ctx,
1010                                 struct bnxt_ulp_flow_db *flow_db)
1011 {
1012         if (!ulp_ctx || !ulp_ctx->cfg_data)
1013                 return -EINVAL;
1014
1015         ulp_ctx->cfg_data->flow_db = flow_db;
1016         return 0;
1017 }
1018
1019 /* Function to get the flow database from the ulp context. */
1020 struct bnxt_ulp_flow_db *
1021 bnxt_ulp_cntxt_ptr2_flow_db_get(struct bnxt_ulp_context *ulp_ctx)
1022 {
1023         if (!ulp_ctx || !ulp_ctx->cfg_data)
1024                 return NULL;
1025
1026         return ulp_ctx->cfg_data->flow_db;
1027 }
1028
1029 /* Function to get the ulp context from eth device. */
1030 struct bnxt_ulp_context *
1031 bnxt_ulp_eth_dev_ptr2_cntxt_get(struct rte_eth_dev      *dev)
1032 {
1033         struct bnxt *bp = (struct bnxt *)dev->data->dev_private;
1034
1035         if (BNXT_ETH_DEV_IS_REPRESENTOR(dev)) {
1036                 struct bnxt_vf_representor *vfr = dev->data->dev_private;
1037
1038                 bp = vfr->parent_dev->data->dev_private;
1039         }
1040
1041         if (!bp) {
1042                 BNXT_TF_DBG(ERR, "Bnxt private data is not initialized\n");
1043                 return NULL;
1044         }
1045         return bp->ulp_ctx;
1046 }
1047
1048 int32_t
1049 bnxt_ulp_cntxt_ptr2_mapper_data_set(struct bnxt_ulp_context *ulp_ctx,
1050                                     void *mapper_data)
1051 {
1052         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1053                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1054                 return -EINVAL;
1055         }
1056
1057         ulp_ctx->cfg_data->mapper_data = mapper_data;
1058         return 0;
1059 }
1060
1061 void *
1062 bnxt_ulp_cntxt_ptr2_mapper_data_get(struct bnxt_ulp_context *ulp_ctx)
1063 {
1064         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1065                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1066                 return NULL;
1067         }
1068
1069         return ulp_ctx->cfg_data->mapper_data;
1070 }
1071
1072 /* Function to set the port database to the ulp context. */
1073 int32_t
1074 bnxt_ulp_cntxt_ptr2_port_db_set(struct bnxt_ulp_context *ulp_ctx,
1075                                 struct bnxt_ulp_port_db *port_db)
1076 {
1077         if (!ulp_ctx || !ulp_ctx->cfg_data)
1078                 return -EINVAL;
1079
1080         ulp_ctx->cfg_data->port_db = port_db;
1081         return 0;
1082 }
1083
1084 /* Function to get the port database from the ulp context. */
1085 struct bnxt_ulp_port_db *
1086 bnxt_ulp_cntxt_ptr2_port_db_get(struct bnxt_ulp_context *ulp_ctx)
1087 {
1088         if (!ulp_ctx || !ulp_ctx->cfg_data)
1089                 return NULL;
1090
1091         return ulp_ctx->cfg_data->port_db;
1092 }
1093
1094 /* Function to set the flow counter info into the context */
1095 int32_t
1096 bnxt_ulp_cntxt_ptr2_fc_info_set(struct bnxt_ulp_context *ulp_ctx,
1097                                 struct bnxt_ulp_fc_info *ulp_fc_info)
1098 {
1099         if (!ulp_ctx || !ulp_ctx->cfg_data) {
1100                 BNXT_TF_DBG(ERR, "Invalid ulp context data\n");
1101                 return -EINVAL;
1102         }
1103
1104         ulp_ctx->cfg_data->fc_info = ulp_fc_info;
1105
1106         return 0;
1107 }
1108
1109 /* Function to retrieve the flow counter info from the context. */
1110 struct bnxt_ulp_fc_info *
1111 bnxt_ulp_cntxt_ptr2_fc_info_get(struct bnxt_ulp_context *ulp_ctx)
1112 {
1113         if (!ulp_ctx || !ulp_ctx->cfg_data)
1114                 return NULL;
1115
1116         return ulp_ctx->cfg_data->fc_info;
1117 }
1118
1119 /* Function to get the ulp flags from the ulp context. */
1120 int32_t
1121 bnxt_ulp_cntxt_ptr2_ulp_flags_get(struct bnxt_ulp_context *ulp_ctx,
1122                                   uint32_t *flags)
1123 {
1124         if (!ulp_ctx || !ulp_ctx->cfg_data)
1125                 return -1;
1126
1127         *flags =  ulp_ctx->cfg_data->ulp_flags;
1128         return 0;
1129 }