drivers/net/bnxt/tf_ulp/ulp_fc_mgr.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_common.h>
   7 #include <rte_cycles.h>
   8 #include <rte_malloc.h>
   9 #include <rte_log.h>
  10 #include <rte_alarm.h>
  11 #include "bnxt.h"
  12 #include "bnxt_ulp.h"
  13 #include "bnxt_tf_common.h"
  14 #include "ulp_fc_mgr.h"
  15 #include "ulp_flow_db.h"
  16 #include "ulp_template_db_enum.h"
  17 #include "ulp_template_struct.h"
  18 #include "tf_tbl.h"
  19
  20 static int
  21 ulp_fc_mgr_shadow_mem_alloc(struct hw_fc_mem_info *parms, int size)
  22 {
  23         /* Allocate memory*/
  24         if (!parms)
  25                 return -EINVAL;
  26
  27         parms->mem_va = rte_zmalloc("ulp_fc_info",
  28                                     RTE_CACHE_LINE_ROUNDUP(size),
  29                                     4096);
  30         if (!parms->mem_va) {
  31                 BNXT_TF_DBG(ERR, "Allocate failed mem_va\n");
  32                 return -ENOMEM;
  33         }
  34
  35         rte_mem_lock_page(parms->mem_va);
  36
  37         parms->mem_pa = (void *)(uintptr_t)rte_mem_virt2phy(parms->mem_va);
  38         if (parms->mem_pa == (void *)(uintptr_t)RTE_BAD_IOVA) {
  39                 BNXT_TF_DBG(ERR, "Allocate failed mem_pa\n");
  40                 return -ENOMEM;
  41         }
  42
  43         return 0;
  44 }
  45
  46 static void
  47 ulp_fc_mgr_shadow_mem_free(struct hw_fc_mem_info *parms)
  48 {
  49         rte_free(parms->mem_va);
  50 }
  51
  52 /*
  53  * Allocate and Initialize all Flow Counter Manager resources for this ulp
  54  * context.
  55  *
  56  * ctxt [in] The ulp context for the Flow Counter manager.
  57  *
  58  */
  59 int32_t
  60 ulp_fc_mgr_init(struct bnxt_ulp_context *ctxt)
  61 {
  62         struct bnxt_ulp_device_params *dparms;
  63         uint32_t dev_id, sw_acc_cntr_tbl_sz, hw_fc_mem_info_sz;
  64         struct bnxt_ulp_fc_info *ulp_fc_info;
  65         int i, rc;
  66
  67         if (!ctxt) {
  68                 BNXT_TF_DBG(DEBUG, "Invalid ULP CTXT\n");
  69                 return -EINVAL;
  70         }
  71
  72         if (bnxt_ulp_cntxt_dev_id_get(ctxt, &dev_id)) {
  73                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
  74                 return -EINVAL;
  75         }
  76
  77         dparms = bnxt_ulp_device_params_get(dev_id);
  78         if (!dparms) {
  79                 BNXT_TF_DBG(DEBUG, "Failed to device parms\n");
  80                 return -EINVAL;
  81         }
  82
  83         if (!dparms->flow_count_db_entries) {
  84                 BNXT_TF_DBG(DEBUG, "flow counter support is not enabled\n");
  85                 bnxt_ulp_cntxt_ptr2_fc_info_set(ctxt, NULL);
  86                 return 0;
  87         }
  88
  89         ulp_fc_info = rte_zmalloc("ulp_fc_info", sizeof(*ulp_fc_info), 0);
  90         if (!ulp_fc_info)
  91                 goto error;
  92
  93         rc = pthread_mutex_init(&ulp_fc_info->fc_lock, NULL);
  94         if (rc) {
  95                 PMD_DRV_LOG(ERR, "Failed to initialize fc mutex\n");
  96                 goto error;
  97         }
  98
  99         /* Add the FC info tbl to the ulp context. */
 100         bnxt_ulp_cntxt_ptr2_fc_info_set(ctxt, ulp_fc_info);
 101
 102         sw_acc_cntr_tbl_sz = sizeof(struct sw_acc_counter) *
 103                                 dparms->flow_count_db_entries;
 104
 105         for (i = 0; i < TF_DIR_MAX; i++) {
 106                 ulp_fc_info->sw_acc_tbl[i] = rte_zmalloc("ulp_sw_acc_cntr_tbl",
 107                                                          sw_acc_cntr_tbl_sz, 0);
 108                 if (!ulp_fc_info->sw_acc_tbl[i])
 109                         goto error;
 110         }
 111
 112         hw_fc_mem_info_sz = sizeof(uint64_t) * dparms->flow_count_db_entries;
 113
 114         for (i = 0; i < TF_DIR_MAX; i++) {
 115                 rc = ulp_fc_mgr_shadow_mem_alloc(&ulp_fc_info->shadow_hw_tbl[i],
 116                                                  hw_fc_mem_info_sz);
 117                 if (rc)
 118                         goto error;
 119         }
 120
 121         return 0;
 122
 123 error:
 124         ulp_fc_mgr_deinit(ctxt);
 125         BNXT_TF_DBG(DEBUG,
 126                     "Failed to allocate memory for fc mgr\n");
 127
 128         return -ENOMEM;
 129 }
 130
 131 /*
 132  * Release all resources in the Flow Counter Manager for this ulp context
 133  *
 134  * ctxt [in] The ulp context for the Flow Counter manager
 135  *
 136  */
 137 int32_t
 138 ulp_fc_mgr_deinit(struct bnxt_ulp_context *ctxt)
 139 {
 140         struct bnxt_ulp_fc_info *ulp_fc_info;
 141         int i;
 142
 143         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 144
 145         if (!ulp_fc_info)
 146                 return -EINVAL;
 147
 148         ulp_fc_mgr_thread_cancel(ctxt);
 149
 150         pthread_mutex_destroy(&ulp_fc_info->fc_lock);
 151
 152         for (i = 0; i < TF_DIR_MAX; i++)
 153                 rte_free(ulp_fc_info->sw_acc_tbl[i]);
 154
 155         for (i = 0; i < TF_DIR_MAX; i++)
 156                 ulp_fc_mgr_shadow_mem_free(&ulp_fc_info->shadow_hw_tbl[i]);
 157
 158         rte_free(ulp_fc_info);
 159
 160         /* Safe to ignore on deinit */
 161         (void)bnxt_ulp_cntxt_ptr2_fc_info_set(ctxt, NULL);
 162
 163         return 0;
 164 }
 165
 166 /*
 167  * Check if the alarm thread that walks through the flows is started
 168  *
 169  * ctxt [in] The ulp context for the flow counter manager
 170  *
 171  */
 172 bool ulp_fc_mgr_thread_isstarted(struct bnxt_ulp_context *ctxt)
 173 {
 174         struct bnxt_ulp_fc_info *ulp_fc_info;
 175
 176         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 177
 178         if (ulp_fc_info)
 179                 return !!(ulp_fc_info->flags & ULP_FLAG_FC_THREAD);
 180
 181         return false;
 182 }
 183
 184 /*
 185  * Setup the Flow counter timer thread that will fetch/accumulate raw counter
 186  * data from the chip's internal flow counters
 187  *
 188  * ctxt [in] The ulp context for the flow counter manager
 189  *
 190  */
 191 int32_t
 192 ulp_fc_mgr_thread_start(struct bnxt_ulp_context *ctxt)
 193 {
 194         struct bnxt_ulp_fc_info *ulp_fc_info;
 195
 196         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 197
 198         if (ulp_fc_info && !(ulp_fc_info->flags & ULP_FLAG_FC_THREAD)) {
 199                 rte_eal_alarm_set(US_PER_S * ULP_FC_TIMER,
 200                                   ulp_fc_mgr_alarm_cb,
 201                                   (void *)ctxt);
 202                 ulp_fc_info->flags |= ULP_FLAG_FC_THREAD;
 203         }
 204
 205         return 0;
 206 }
 207
 208 /*
 209  * Cancel the alarm handler
 210  *
 211  * ctxt [in] The ulp context for the flow counter manager
 212  *
 213  */
 214 void ulp_fc_mgr_thread_cancel(struct bnxt_ulp_context *ctxt)
 215 {
 216         struct bnxt_ulp_fc_info *ulp_fc_info;
 217
 218         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 219         if (!ulp_fc_info)
 220                 return;
 221
 222         ulp_fc_info->flags &= ~ULP_FLAG_FC_THREAD;
 223         rte_eal_alarm_cancel(ulp_fc_mgr_alarm_cb, (void *)ctxt);
 224 }
 225
 226 /*
 227  * DMA-in the raw counter data from the HW and accumulate in the
 228  * local accumulator table using the TF-Core API
 229  *
 230  * tfp [in] The TF-Core context
 231  *
 232  * fc_info [in] The ULP Flow counter info ptr
 233  *
 234  * dir [in] The direction of the flow
 235  *
 236  * num_counters [in] The number of counters
 237  *
 238  */
 239 __rte_unused static int32_t
 240 ulp_bulk_get_flow_stats(struct tf *tfp,
 241                         struct bnxt_ulp_fc_info *fc_info,
 242                         enum tf_dir dir,
 243                         struct bnxt_ulp_device_params *dparms)
 244 /* MARK AS UNUSED FOR NOW TO AVOID COMPILATION ERRORS TILL API is RESOLVED */
 245 {
 246         int rc = 0;
 247         struct tf_tbl_get_bulk_parms parms = { 0 };
 248         enum tf_tbl_type stype = TF_TBL_TYPE_ACT_STATS_64;  /* TBD: Template? */
 249         struct sw_acc_counter *sw_acc_tbl_entry = NULL;
 250         uint64_t *stats = NULL;
 251         uint16_t i = 0;
 252
 253         parms.dir = dir;
 254         parms.type = stype;
 255         parms.starting_idx = fc_info->shadow_hw_tbl[dir].start_idx;
 256         parms.num_entries = dparms->flow_count_db_entries / 2; /* direction */
 257         /*
 258          * TODO:
 259          * Size of an entry needs to obtained from template
 260          */
 261         parms.entry_sz_in_bytes = sizeof(uint64_t);
 262         stats = (uint64_t *)fc_info->shadow_hw_tbl[dir].mem_va;
 263         parms.physical_mem_addr = (uint64_t)
 264                 ((uintptr_t)(fc_info->shadow_hw_tbl[dir].mem_pa));
 265
 266         if (!stats) {
 267                 PMD_DRV_LOG(ERR,
 268                             "BULK: Memory not initialized id:0x%x dir:%d\n",
 269                             parms.starting_idx, dir);
 270                 return -EINVAL;
 271         }
 272
 273         rc = tf_tbl_bulk_get(tfp, &parms);
 274         if (rc) {
 275                 PMD_DRV_LOG(ERR,
 276                             "BULK: Get failed for id:0x%x rc:%d\n",
 277                             parms.starting_idx, rc);
 278                 return rc;
 279         }
 280
 281         for (i = 0; i < parms.num_entries; i++) {
 282                 /* TBD - Get PKT/BYTE COUNT SHIFT/MASK from Template */
 283                 sw_acc_tbl_entry = &fc_info->sw_acc_tbl[dir][i];
 284                 if (!sw_acc_tbl_entry->valid)
 285                         continue;
 286                 sw_acc_tbl_entry->pkt_count += FLOW_CNTR_PKTS(stats[i],
 287                                                               dparms);
 288                 sw_acc_tbl_entry->byte_count += FLOW_CNTR_BYTES(stats[i],
 289                                                                 dparms);
 290         }
 291
 292         return rc;
 293 }
 294
 295 static int ulp_get_single_flow_stat(struct bnxt_ulp_context *ctxt,
 296                                     struct tf *tfp,
 297                                     struct bnxt_ulp_fc_info *fc_info,
 298                                     enum tf_dir dir,
 299                                     uint32_t hw_cntr_id,
 300                                     struct bnxt_ulp_device_params *dparms)
 301 {
 302         int rc = 0;
 303         struct tf_get_tbl_entry_parms parms = { 0 };
 304         enum tf_tbl_type stype = TF_TBL_TYPE_ACT_STATS_64;  /* TBD:Template? */
 305         struct sw_acc_counter *sw_acc_tbl_entry = NULL, *t_sw;
 306         uint64_t stats = 0;
 307         uint32_t sw_cntr_indx = 0;
 308
 309         parms.dir = dir;
 310         parms.type = stype;
 311         parms.idx = hw_cntr_id;
 312         /*
 313          * TODO:
 314          * Size of an entry needs to obtained from template
 315          */
 316         parms.data_sz_in_bytes = sizeof(uint64_t);
 317         parms.data = (uint8_t *)&stats;
 318         rc = tf_get_tbl_entry(tfp, &parms);
 319         if (rc) {
 320                 PMD_DRV_LOG(ERR,
 321                             "Get failed for id:0x%x rc:%d\n",
 322                             parms.idx, rc);
 323                 return rc;
 324         }
 325
 326         /* TBD - Get PKT/BYTE COUNT SHIFT/MASK from Template */
 327         sw_cntr_indx = hw_cntr_id - fc_info->shadow_hw_tbl[dir].start_idx;
 328         sw_acc_tbl_entry = &fc_info->sw_acc_tbl[dir][sw_cntr_indx];
 329         /* Some dpdk applications may accumulate the flow counters while some
 330          * may not. In cases where the application is accumulating the counters
 331          * the PMD need not do the accumulation itself and viceversa to report
 332          * the correct flow counters.
 333          */
 334         if (ctxt->cfg_data->accum_stats) {
 335                 sw_acc_tbl_entry->pkt_count += FLOW_CNTR_PKTS(stats, dparms);
 336                 sw_acc_tbl_entry->byte_count += FLOW_CNTR_BYTES(stats, dparms);
 337         } else {
 338                 sw_acc_tbl_entry->pkt_count = FLOW_CNTR_PKTS(stats, dparms);
 339                 sw_acc_tbl_entry->byte_count = FLOW_CNTR_BYTES(stats, dparms);
 340         }
 341
 342         /* Update the parent counters if it is child flow */
 343         if (sw_acc_tbl_entry->parent_flow_id) {
 344                 /* Update the parent counters */
 345                 t_sw = sw_acc_tbl_entry;
 346                 if (ulp_flow_db_parent_flow_count_update(ctxt,
 347                                                          t_sw->parent_flow_id,
 348                                                          t_sw->pkt_count,
 349                                                          t_sw->byte_count)) {
 350                         PMD_DRV_LOG(ERR, "Error updating parent counters\n");
 351                 }
 352         }
 353
 354         return rc;
 355 }
 356
 357 /*
 358  * Alarm handler that will issue the TF-Core API to fetch
 359  * data from the chip's internal flow counters
 360  *
 361  * ctxt [in] The ulp context for the flow counter manager
 362  *
 363  */
 364
 365 void
 366 ulp_fc_mgr_alarm_cb(void *arg)
 367 {
 368         int rc = 0;
 369         unsigned int j;
 370         enum tf_dir i;
 371         struct bnxt_ulp_context *ctxt = arg;
 372         struct bnxt_ulp_fc_info *ulp_fc_info;
 373         struct bnxt_ulp_device_params *dparms;
 374         struct tf *tfp;
 375         uint32_t dev_id, hw_cntr_id = 0, num_entries = 0;
 376
 377         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 378         if (!ulp_fc_info)
 379                 return;
 380
 381         if (bnxt_ulp_cntxt_dev_id_get(ctxt, &dev_id)) {
 382                 BNXT_TF_DBG(DEBUG, "Failed to get device id\n");
 383                 return;
 384         }
 385
 386         dparms = bnxt_ulp_device_params_get(dev_id);
 387         if (!dparms) {
 388                 BNXT_TF_DBG(DEBUG, "Failed to device parms\n");
 389                 return;
 390         }
 391
 392         tfp = bnxt_ulp_cntxt_tfp_get(ctxt, BNXT_ULP_SHARED_SESSION_NO);
 393         if (!tfp) {
 394                 BNXT_TF_DBG(ERR, "Failed to get the truflow pointer\n");
 395                 return;
 396         }
 397
 398         /*
 399          * Take the fc_lock to ensure no flow is destroyed
 400          * during the bulk get
 401          */
 402         if (pthread_mutex_trylock(&ulp_fc_info->fc_lock))
 403                 goto out;
 404
 405         if (!ulp_fc_info->num_entries) {
 406                 pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 407                 ulp_fc_mgr_thread_cancel(ctxt);
 408                 return;
 409         }
 410         /*
 411          * Commented for now till GET_BULK is resolved, just get the first flow
 412          * stat for now
 413          for (i = 0; i < TF_DIR_MAX; i++) {
 414                 rc = ulp_bulk_get_flow_stats(tfp, ulp_fc_info, i,
 415                                              dparms->flow_count_db_entries);
 416                 if (rc)
 417                         break;
 418         }
 419         */
 420
 421         /* reset the parent accumulation counters before accumulation if any */
 422         ulp_flow_db_parent_flow_count_reset(ctxt);
 423
 424         num_entries = dparms->flow_count_db_entries / 2;
 425         for (i = 0; i < TF_DIR_MAX; i++) {
 426                 for (j = 0; j < num_entries; j++) {
 427                         if (!ulp_fc_info->sw_acc_tbl[i][j].valid)
 428                                 continue;
 429                         hw_cntr_id = ulp_fc_info->sw_acc_tbl[i][j].hw_cntr_id;
 430                         rc = ulp_get_single_flow_stat(ctxt, tfp, ulp_fc_info, i,
 431                                                       hw_cntr_id, dparms);
 432                         if (rc)
 433                                 break;
 434                 }
 435         }
 436
 437         pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 438
 439         /*
 440          * If cmd fails once, no need of
 441          * invoking again every second
 442          */
 443
 444         if (rc) {
 445                 ulp_fc_mgr_thread_cancel(ctxt);
 446                 return;
 447         }
 448 out:
 449         rte_eal_alarm_set(US_PER_S * ULP_FC_TIMER,
 450                           ulp_fc_mgr_alarm_cb,
 451                           (void *)ctxt);
 452 }
 453
 454 /*
 455  * Set the starting index that indicates the first HW flow
 456  * counter ID
 457  *
 458  * ctxt [in] The ulp context for the flow counter manager
 459  *
 460  * dir [in] The direction of the flow
 461  *
 462  * start_idx [in] The HW flow counter ID
 463  *
 464  */
 465 bool ulp_fc_mgr_start_idx_isset(struct bnxt_ulp_context *ctxt, enum tf_dir dir)
 466 {
 467         struct bnxt_ulp_fc_info *ulp_fc_info;
 468
 469         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 470
 471         if (ulp_fc_info)
 472                 return ulp_fc_info->shadow_hw_tbl[dir].start_idx_is_set;
 473
 474         return false;
 475 }
 476
 477 /*
 478  * Set the starting index that indicates the first HW flow
 479  * counter ID
 480  *
 481  * ctxt [in] The ulp context for the flow counter manager
 482  *
 483  * dir [in] The direction of the flow
 484  *
 485  * start_idx [in] The HW flow counter ID
 486  *
 487  */
 488 int32_t ulp_fc_mgr_start_idx_set(struct bnxt_ulp_context *ctxt, enum tf_dir dir,
 489                                  uint32_t start_idx)
 490 {
 491         struct bnxt_ulp_fc_info *ulp_fc_info;
 492
 493         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 494
 495         if (!ulp_fc_info)
 496                 return -EIO;
 497
 498         if (!ulp_fc_info->shadow_hw_tbl[dir].start_idx_is_set) {
 499                 ulp_fc_info->shadow_hw_tbl[dir].start_idx = start_idx;
 500                 ulp_fc_info->shadow_hw_tbl[dir].start_idx_is_set = true;
 501         }
 502
 503         return 0;
 504 }
 505
 506 /*
 507  * Set the corresponding SW accumulator table entry based on
 508  * the difference between this counter ID and the starting
 509  * counter ID. Also, keep track of num of active counter enabled
 510  * flows.
 511  *
 512  * ctxt [in] The ulp context for the flow counter manager
 513  *
 514  * dir [in] The direction of the flow
 515  *
 516  * hw_cntr_id [in] The HW flow counter ID
 517  *
 518  */
 519 int32_t ulp_fc_mgr_cntr_set(struct bnxt_ulp_context *ctxt, enum tf_dir dir,
 520                             uint32_t hw_cntr_id)
 521 {
 522         struct bnxt_ulp_fc_info *ulp_fc_info;
 523         uint32_t sw_cntr_idx;
 524
 525         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 526         if (!ulp_fc_info)
 527                 return -EIO;
 528
 529         pthread_mutex_lock(&ulp_fc_info->fc_lock);
 530         sw_cntr_idx = hw_cntr_id - ulp_fc_info->shadow_hw_tbl[dir].start_idx;
 531         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].valid = true;
 532         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].hw_cntr_id = hw_cntr_id;
 533         ulp_fc_info->num_entries++;
 534         pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 535
 536         return 0;
 537 }
 538
 539 /*
 540  * Reset the corresponding SW accumulator table entry based on
 541  * the difference between this counter ID and the starting
 542  * counter ID.
 543  *
 544  * ctxt [in] The ulp context for the flow counter manager
 545  *
 546  * dir [in] The direction of the flow
 547  *
 548  * hw_cntr_id [in] The HW flow counter ID
 549  *
 550  */
 551 int32_t ulp_fc_mgr_cntr_reset(struct bnxt_ulp_context *ctxt, enum tf_dir dir,
 552                               uint32_t hw_cntr_id)
 553 {
 554         struct bnxt_ulp_fc_info *ulp_fc_info;
 555         uint32_t sw_cntr_idx;
 556
 557         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 558         if (!ulp_fc_info)
 559                 return -EIO;
 560
 561         pthread_mutex_lock(&ulp_fc_info->fc_lock);
 562         sw_cntr_idx = hw_cntr_id - ulp_fc_info->shadow_hw_tbl[dir].start_idx;
 563         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].valid = false;
 564         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].hw_cntr_id = 0;
 565         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].pkt_count = 0;
 566         ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].byte_count = 0;
 567         ulp_fc_info->num_entries--;
 568         pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 569
 570         return 0;
 571 }
 572
 573 /*
 574  * Fill the rte_flow_query_count 'data' argument passed
 575  * in the rte_flow_query() with the values obtained and
 576  * accumulated locally.
 577  *
 578  * ctxt [in] The ulp context for the flow counter manager
 579  *
 580  * flow_id [in] The HW flow ID
 581  *
 582  * count [out] The rte_flow_query_count 'data' that is set
 583  *
 584  */
 585 int ulp_fc_mgr_query_count_get(struct bnxt_ulp_context *ctxt,
 586                                uint32_t flow_id,
 587                                struct rte_flow_query_count *count)
 588 {
 589         int rc = 0;
 590         uint32_t nxt_resource_index = 0;
 591         struct bnxt_ulp_fc_info *ulp_fc_info;
 592         struct ulp_flow_db_res_params params;
 593         enum tf_dir dir;
 594         uint32_t hw_cntr_id = 0, sw_cntr_idx = 0;
 595         struct sw_acc_counter *sw_acc_tbl_entry;
 596         bool found_cntr_resource = false;
 597
 598         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 599         if (!ulp_fc_info)
 600                 return -ENODEV;
 601
 602         if (bnxt_ulp_cntxt_acquire_fdb_lock(ctxt))
 603                 return -EIO;
 604
 605         do {
 606                 rc = ulp_flow_db_resource_get(ctxt,
 607                                               BNXT_ULP_FDB_TYPE_REGULAR,
 608                                               flow_id,
 609                                               &nxt_resource_index,
 610                                               &params);
 611                 if (params.resource_func ==
 612                      BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE &&
 613                      (params.resource_sub_type ==
 614                       BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT ||
 615                       params.resource_sub_type ==
 616                       BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_EXT_COUNT ||
 617                       params.resource_sub_type ==
 618                       BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT_ACC)) {
 619                         found_cntr_resource = true;
 620                         break;
 621                 }
 622         } while (!rc && nxt_resource_index);
 623
 624         bnxt_ulp_cntxt_release_fdb_lock(ctxt);
 625
 626         if (rc || !found_cntr_resource)
 627                 return rc;
 628
 629         dir = params.direction;
 630         hw_cntr_id = params.resource_hndl;
 631         if (params.resource_sub_type ==
 632                         BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT) {
 633                 /* TODO:
 634                  * Think about optimizing with try_lock later
 635                  */
 636                 pthread_mutex_lock(&ulp_fc_info->fc_lock);
 637                 sw_cntr_idx = hw_cntr_id -
 638                         ulp_fc_info->shadow_hw_tbl[dir].start_idx;
 639                 sw_acc_tbl_entry = &ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx];
 640                 if (sw_acc_tbl_entry->pkt_count) {
 641                         count->hits_set = 1;
 642                         count->bytes_set = 1;
 643                         count->hits = sw_acc_tbl_entry->pkt_count;
 644                         count->bytes = sw_acc_tbl_entry->byte_count;
 645                 }
 646                 if (count->reset) {
 647                         sw_acc_tbl_entry->pkt_count = 0;
 648                         sw_acc_tbl_entry->byte_count = 0;
 649                 }
 650                 pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 651         } else if (params.resource_sub_type ==
 652                         BNXT_ULP_RESOURCE_SUB_TYPE_INDEX_TABLE_INT_COUNT_ACC) {
 653                 /* Get stats from the parent child table */
 654                 ulp_flow_db_parent_flow_count_get(ctxt, flow_id,
 655                                                   &count->hits, &count->bytes,
 656                                                   count->reset);
 657                 count->hits_set = 1;
 658                 count->bytes_set = 1;
 659         } else {
 660                 /* TBD: Handle External counters */
 661                 rc = -EINVAL;
 662         }
 663
 664         return rc;
 665 }
 666
 667 /*
 668  * Set the parent flow if it is SW accumulation counter entry.
 669  *
 670  * ctxt [in] The ulp context for the flow counter manager
 671  *
 672  * dir [in] The direction of the flow
 673  *
 674  * hw_cntr_id [in] The HW flow counter ID
 675  *
 676  * fid [in] parent flow id
 677  *
 678  */
 679 int32_t ulp_fc_mgr_cntr_parent_flow_set(struct bnxt_ulp_context *ctxt,
 680                                         enum tf_dir dir,
 681                                         uint32_t hw_cntr_id,
 682                                         uint32_t fid)
 683 {
 684         struct bnxt_ulp_fc_info *ulp_fc_info;
 685         uint32_t sw_cntr_idx;
 686         int32_t rc = 0;
 687
 688         ulp_fc_info = bnxt_ulp_cntxt_ptr2_fc_info_get(ctxt);
 689         if (!ulp_fc_info)
 690                 return -EIO;
 691
 692         pthread_mutex_lock(&ulp_fc_info->fc_lock);
 693         sw_cntr_idx = hw_cntr_id - ulp_fc_info->shadow_hw_tbl[dir].start_idx;
 694         if (ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].valid) {
 695                 ulp_fc_info->sw_acc_tbl[dir][sw_cntr_idx].parent_flow_id = fid;
 696         } else {
 697                 BNXT_TF_DBG(ERR, "Failed to set parent flow id %x:%x\n",
 698                             hw_cntr_id, fid);
 699                 rc = -ENOENT;
 700         }
 701         pthread_mutex_unlock(&ulp_fc_info->fc_lock);
 702
 703         return rc;
 704 }