drivers/net/bnxt/tf_ulp/ulp_mapper.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2020 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include <rte_log.h>
   7 #include "bnxt.h"
   8 #include "ulp_template_db.h"
   9 #include "ulp_template_struct.h"
  10 #include "bnxt_tf_common.h"
  11 #include "ulp_utils.h"
  12 #include "bnxt_ulp.h"
  13 #include "tfp.h"
  14 #include "tf_ext_flow_handle.h"
  15 #include "ulp_mark_mgr.h"
  16 #include "ulp_flow_db.h"
  17 #include "ulp_mapper.h"
  18
  19 /*
  20  * Get the size of the action property for a given index.
  21  *
  22  * idx [in] The index for the action property
  23  *
  24  * returns the size of the action property.
  25  */
  26 static uint32_t
  27 ulp_mapper_act_prop_size_get(uint32_t idx)
  28 {
  29         if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST)
  30                 return 0;
  31         return ulp_act_prop_map_table[idx];
  32 }
  33
  34 /*
  35  * Get the list of result fields that implement the flow action.
  36  * Gets a device dependent list of tables that implement the action template id.
  37  *
  38  * dev_id [in] The device id of the forwarding element
  39  *
  40  * tid [in] The action template id that matches the flow
  41  *
  42  * num_tbls [out] The number of action tables in the returned array
  43  *
  44  * Returns An array of action tables to implement the flow, or NULL on error.
  45  */
  46 static struct bnxt_ulp_mapper_act_tbl_info *
  47 ulp_mapper_action_tbl_list_get(uint32_t dev_id,
  48                                uint32_t tid,
  49                                uint32_t *num_tbls)
  50 {
  51         uint32_t        idx;
  52         uint32_t        tidx;
  53
  54         if (!num_tbls) {
  55                 BNXT_TF_DBG(ERR, "Invalid arguments\n");
  56                 return NULL;
  57         }
  58
  59         /* template shift and device mask */
  60         tidx = ULP_DEVICE_PARAMS_INDEX(tid, dev_id);
  61
  62         /* NOTE: Need to have something from template compiler to help validate
  63          * range of dev_id and act_tid
  64          */
  65         idx             = ulp_act_tmpl_list[tidx].start_tbl_idx;
  66         *num_tbls       = ulp_act_tmpl_list[tidx].num_tbls;
  67
  68         return &ulp_act_tbl_list[idx];
  69 }
  70
  71 /** Get a list of classifier tables that implement the flow
  72  * Gets a device dependent list of tables that implement the class template id
  73  *
  74  * dev_id [in] The device id of the forwarding element
  75  *
  76  * tid [in] The template id that matches the flow
  77  *
  78  * num_tbls [out] The number of classifier tables in the returned array
  79  *
  80  * returns An array of classifier tables to implement the flow, or NULL on
  81  * error
  82  */
  83 static struct bnxt_ulp_mapper_class_tbl_info *
  84 ulp_mapper_class_tbl_list_get(uint32_t dev_id,
  85                               uint32_t tid,
  86                               uint32_t *num_tbls)
  87 {
  88         uint32_t idx;
  89         uint32_t tidx = ULP_DEVICE_PARAMS_INDEX(tid, dev_id);
  90
  91         if (!num_tbls)
  92                 return NULL;
  93
  94         /* NOTE: Need to have something from template compiler to help validate
  95          * range of dev_id and tid
  96          */
  97         idx             = ulp_class_tmpl_list[tidx].start_tbl_idx;
  98         *num_tbls       = ulp_class_tmpl_list[tidx].num_tbls;
  99
 100         return &ulp_class_tbl_list[idx];
 101 }
 102
 103 /*
 104  * Get the list of key fields that implement the flow.
 105  *
 106  * ctxt [in] The ulp context
 107  *
 108  * tbl [in] A single table instance to get the key fields from
 109  *
 110  * num_flds [out] The number of key fields in the returned array
 111  *
 112  * Returns array of Key fields, or NULL on error.
 113  */
 114 static struct bnxt_ulp_mapper_class_key_field_info *
 115 ulp_mapper_key_fields_get(struct bnxt_ulp_mapper_class_tbl_info *tbl,
 116                           uint32_t *num_flds)
 117 {
 118         uint32_t idx;
 119
 120         if (!tbl || !num_flds)
 121                 return NULL;
 122
 123         idx             = tbl->key_start_idx;
 124         *num_flds       = tbl->key_num_fields;
 125
 126         /* NOTE: Need template to provide range checking define */
 127         return &ulp_class_key_field_list[idx];
 128 }
 129
 130 /*
 131  * Get the list of data fields that implement the flow.
 132  *
 133  * ctxt [in] The ulp context
 134  *
 135  * tbl [in] A single table instance to get the data fields from
 136  *
 137  * num_flds [out] The number of data fields in the returned array.
 138  *
 139  * Returns array of data fields, or NULL on error.
 140  */
 141 static struct bnxt_ulp_mapper_result_field_info *
 142 ulp_mapper_result_fields_get(struct bnxt_ulp_mapper_class_tbl_info *tbl,
 143                              uint32_t *num_flds)
 144 {
 145         uint32_t idx;
 146
 147         if (!tbl || !num_flds)
 148                 return NULL;
 149
 150         idx             = tbl->result_start_idx;
 151         *num_flds       = tbl->result_num_fields;
 152
 153         /* NOTE: Need template to provide range checking define */
 154         return &ulp_class_result_field_list[idx];
 155 }
 156
 157 /*
 158  * Get the list of result fields that implement the flow action.
 159  *
 160  * tbl [in] A single table instance to get the results fields
 161  * from num_flds [out] The number of data fields in the returned
 162  * array.
 163  *
 164  * Returns array of data fields, or NULL on error.
 165  */
 166 static struct bnxt_ulp_mapper_result_field_info *
 167 ulp_mapper_act_result_fields_get(struct bnxt_ulp_mapper_act_tbl_info *tbl,
 168                                  uint32_t *num_rslt_flds,
 169                                  uint32_t *num_encap_flds)
 170 {
 171         uint32_t idx;
 172
 173         if (!tbl || !num_rslt_flds || !num_encap_flds)
 174                 return NULL;
 175
 176         idx             = tbl->result_start_idx;
 177         *num_rslt_flds  = tbl->result_num_fields;
 178         *num_encap_flds = tbl->encap_num_fields;
 179
 180         /* NOTE: Need template to provide range checking define */
 181         return &ulp_act_result_field_list[idx];
 182 }
 183
 184 /*
 185  * Get the list of ident fields that implement the flow
 186  *
 187  * tbl [in] A single table instance to get the ident fields from
 188  *
 189  * num_flds [out] The number of ident fields in the returned array
 190  *
 191  * returns array of ident fields, or NULL on error
 192  */
 193 static struct bnxt_ulp_mapper_ident_info *
 194 ulp_mapper_ident_fields_get(struct bnxt_ulp_mapper_class_tbl_info *tbl,
 195                             uint32_t *num_flds)
 196 {
 197         uint32_t idx;
 198
 199         if (!tbl || !num_flds)
 200                 return NULL;
 201
 202         idx = tbl->ident_start_idx;
 203         *num_flds = tbl->ident_nums;
 204
 205         /* NOTE: Need template to provide range checking define */
 206         return &ulp_ident_list[idx];
 207 }
 208
 209 static inline int32_t
 210 ulp_mapper_tcam_entry_free(struct bnxt_ulp_context *ulp  __rte_unused,
 211                            struct tf *tfp,
 212                            struct ulp_flow_db_res_params *res)
 213 {
 214         struct tf_free_tcam_entry_parms fparms = {
 215                 .dir            = res->direction,
 216                 .tcam_tbl_type  = res->resource_type,
 217                 .idx            = (uint16_t)res->resource_hndl
 218         };
 219
 220         return tf_free_tcam_entry(tfp, &fparms);
 221 }
 222
 223 static inline int32_t
 224 ulp_mapper_index_entry_free(struct bnxt_ulp_context *ulp  __rte_unused,
 225                             struct tf *tfp,
 226                             struct ulp_flow_db_res_params *res)
 227 {
 228         struct tf_free_tbl_entry_parms fparms = {
 229                 .dir    = res->direction,
 230                 .type   = res->resource_type,
 231                 .idx    = (uint32_t)res->resource_hndl
 232         };
 233
 234         return tf_free_tbl_entry(tfp, &fparms);
 235 }
 236
 237 static inline int32_t
 238 ulp_mapper_eem_entry_free(struct bnxt_ulp_context *ulp,
 239                           struct tf *tfp,
 240                           struct ulp_flow_db_res_params *res)
 241 {
 242         struct tf_delete_em_entry_parms fparms = { 0 };
 243         int32_t rc;
 244
 245         fparms.dir              = res->direction;
 246         fparms.mem              = TF_MEM_EXTERNAL;
 247         fparms.flow_handle      = res->resource_hndl;
 248
 249         rc = bnxt_ulp_cntxt_tbl_scope_id_get(ulp, &fparms.tbl_scope_id);
 250         if (rc) {
 251                 BNXT_TF_DBG(ERR, "Failed to get table scope\n");
 252                 return -EINVAL;
 253         }
 254
 255         return tf_delete_em_entry(tfp, &fparms);
 256 }
 257
 258 static inline int32_t
 259 ulp_mapper_ident_free(struct bnxt_ulp_context *ulp __rte_unused,
 260                       struct tf *tfp,
 261                       struct ulp_flow_db_res_params *res)
 262 {
 263         struct tf_free_identifier_parms fparms = {
 264                 .dir            = res->direction,
 265                 .ident_type     = res->resource_type,
 266                 .id             = (uint16_t)res->resource_hndl
 267         };
 268
 269         return tf_free_identifier(tfp, &fparms);
 270 }
 271
 272 static inline int32_t
 273 ulp_mapper_mark_free(struct bnxt_ulp_context *ulp,
 274                      struct ulp_flow_db_res_params *res)
 275 {
 276         uint32_t flag;
 277         uint32_t fid;
 278         uint32_t gfid;
 279
 280         fid       = (uint32_t)res->resource_hndl;
 281         TF_GET_FLAG_FROM_FLOW_ID(fid, flag);
 282         TF_GET_GFID_FROM_FLOW_ID(fid, gfid);
 283
 284         return ulp_mark_db_mark_del(ulp,
 285                                     (flag == TF_GFID_TABLE_EXTERNAL),
 286                                     gfid,
 287                                     0);
 288 }
 289
 290 static int32_t
 291 ulp_mapper_ident_process(struct bnxt_ulp_mapper_parms *parms,
 292                          struct bnxt_ulp_mapper_class_tbl_info *tbl,
 293                          struct bnxt_ulp_mapper_ident_info *ident)
 294 {
 295         struct ulp_flow_db_res_params   fid_parms;
 296         uint64_t id = 0;
 297         int32_t idx;
 298         struct tf_alloc_identifier_parms iparms = { 0 };
 299         struct tf_free_identifier_parms free_parms = { 0 };
 300         struct tf *tfp;
 301         int rc;
 302
 303         tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
 304         if (!tfp) {
 305                 BNXT_TF_DBG(ERR, "Failed to get tf pointer\n");
 306                 return -EINVAL;
 307         }
 308
 309         idx = ident->regfile_wr_idx;
 310
 311         iparms.ident_type = ident->ident_type;
 312         iparms.dir = tbl->direction;
 313
 314         rc = tf_alloc_identifier(tfp, &iparms);
 315         if (rc) {
 316                 BNXT_TF_DBG(ERR, "Alloc ident %s:%d failed.\n",
 317                             (iparms.dir == TF_DIR_RX) ? "RX" : "TX",
 318                             iparms.ident_type);
 319                 return rc;
 320         }
 321
 322         id = (uint64_t)tfp_cpu_to_be_64(iparms.id);
 323         if (!ulp_regfile_write(parms->regfile, idx, id)) {
 324                 BNXT_TF_DBG(ERR, "Regfile[%d] write failed.\n", idx);
 325                 rc = -EINVAL;
 326                 /* Need to free the identifier, so goto error */
 327                 goto error;
 328         }
 329
 330         /* Link the resource to the flow in the flow db */
 331         memset(&fid_parms, 0, sizeof(fid_parms));
 332         fid_parms.direction             = tbl->direction;
 333         fid_parms.resource_func = ident->resource_func;
 334         fid_parms.resource_type = ident->ident_type;
 335         fid_parms.resource_hndl = iparms.id;
 336         fid_parms.critical_resource     = 0;
 337
 338         rc = ulp_flow_db_resource_add(parms->ulp_ctx,
 339                                       parms->tbl_idx,
 340                                       parms->fid,
 341                                       &fid_parms);
 342         if (rc) {
 343                 BNXT_TF_DBG(ERR, "Failed to link resource to flow rc = %d\n",
 344                             rc);
 345                 /* Need to free the identifier, so goto error */
 346                 goto error;
 347         }
 348
 349         return 0;
 350
 351 error:
 352         /* Need to free the identifier */
 353         free_parms.dir          = tbl->direction;
 354         free_parms.ident_type   = ident->ident_type;
 355         free_parms.id           = iparms.id;
 356
 357         (void)tf_free_identifier(tfp, &free_parms);
 358
 359         BNXT_TF_DBG(ERR, "Ident process failed for %s:%s\n",
 360                     ident->description,
 361                     (tbl->direction == TF_DIR_RX) ? "RX" : "TX");
 362         return rc;
 363 }
 364
 365 static int32_t
 366 ulp_mapper_result_field_process(struct bnxt_ulp_mapper_parms *parms,
 367                                 struct bnxt_ulp_mapper_result_field_info *fld,
 368                                 struct ulp_blob *blob,
 369                                 const char *name)
 370 {
 371         uint16_t idx, size_idx;
 372         uint8_t  *val = NULL;
 373         uint64_t regval;
 374         uint32_t val_size = 0, field_size = 0;
 375
 376         switch (fld->result_opcode) {
 377         case BNXT_ULP_RESULT_OPC_SET_TO_CONSTANT:
 378                 val = fld->result_operand;
 379                 if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
 380                         BNXT_TF_DBG(ERR, "%s failed to add field\n", name);
 381                         return -EINVAL;
 382                 }
 383                 break;
 384         case BNXT_ULP_RESULT_OPC_SET_TO_ACT_PROP:
 385                 if (!ulp_operand_read(fld->result_operand,
 386                                       (uint8_t *)&idx, sizeof(uint16_t))) {
 387                         BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
 388                         return -EINVAL;
 389                 }
 390                 idx = tfp_be_to_cpu_16(idx);
 391
 392                 if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
 393                         BNXT_TF_DBG(ERR, "%s act_prop[%d] oob\n", name, idx);
 394                         return -EINVAL;
 395                 }
 396                 val = &parms->act_prop->act_details[idx];
 397                 field_size = ulp_mapper_act_prop_size_get(idx);
 398                 if (fld->field_bit_size < ULP_BYTE_2_BITS(field_size)) {
 399                         field_size  = field_size -
 400                             ((fld->field_bit_size + 7) / 8);
 401                         val += field_size;
 402                 }
 403                 if (!ulp_blob_push(blob, val, fld->field_bit_size)) {
 404                         BNXT_TF_DBG(ERR, "%s push field failed\n", name);
 405                         return -EINVAL;
 406                 }
 407                 break;
 408         case BNXT_ULP_RESULT_OPC_SET_TO_ENCAP_ACT_PROP_SZ:
 409                 if (!ulp_operand_read(fld->result_operand,
 410                                       (uint8_t *)&idx, sizeof(uint16_t))) {
 411                         BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
 412                         return -EINVAL;
 413                 }
 414                 idx = tfp_be_to_cpu_16(idx);
 415
 416                 if (idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
 417                         BNXT_TF_DBG(ERR, "%s act_prop[%d] oob\n", name, idx);
 418                         return -EINVAL;
 419                 }
 420                 val = &parms->act_prop->act_details[idx];
 421
 422                 /* get the size index next */
 423                 if (!ulp_operand_read(&fld->result_operand[sizeof(uint16_t)],
 424                                       (uint8_t *)&size_idx, sizeof(uint16_t))) {
 425                         BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
 426                         return -EINVAL;
 427                 }
 428                 size_idx = tfp_be_to_cpu_16(size_idx);
 429
 430                 if (size_idx >= BNXT_ULP_ACT_PROP_IDX_LAST) {
 431                         BNXT_TF_DBG(ERR, "act_prop[%d] oob\n", size_idx);
 432                         return -EINVAL;
 433                 }
 434                 memcpy(&val_size, &parms->act_prop->act_details[size_idx],
 435                        sizeof(uint32_t));
 436                 val_size = tfp_be_to_cpu_32(val_size);
 437                 val_size = ULP_BYTE_2_BITS(val_size);
 438                 ulp_blob_push_encap(blob, val, val_size);
 439                 break;
 440         case BNXT_ULP_RESULT_OPC_SET_TO_REGFILE:
 441                 if (!ulp_operand_read(fld->result_operand,
 442                                       (uint8_t *)&idx, sizeof(uint16_t))) {
 443                         BNXT_TF_DBG(ERR, "%s operand read failed\n", name);
 444                         return -EINVAL;
 445                 }
 446
 447                 idx = tfp_be_to_cpu_16(idx);
 448                 /* Uninitialized regfile entries return 0 */
 449                 if (!ulp_regfile_read(parms->regfile, idx, &regval)) {
 450                         BNXT_TF_DBG(ERR, "%s regfile[%d] read oob\n",
 451                                     name, idx);
 452                         return -EINVAL;
 453                 }
 454
 455                 val = ulp_blob_push_64(blob, &regval, fld->field_bit_size);
 456                 if (!val) {
 457                         BNXT_TF_DBG(ERR, "%s push field failed\n", name);
 458                         return -EINVAL;
 459                 }
 460                 break;
 461         default:
 462                 return -EINVAL;
 463         }
 464
 465         return 0;
 466 }
 467
 468 /* Function to alloc action record and set the table. */
 469 static int32_t
 470 ulp_mapper_keymask_field_process(struct bnxt_ulp_mapper_parms *parms,
 471                                  struct bnxt_ulp_mapper_class_key_field_info *f,
 472                                  struct ulp_blob *blob,
 473                                  uint8_t is_key,
 474                                  const char *name)
 475 {
 476         uint64_t regval;
 477         uint16_t idx, bitlen;
 478         uint32_t opcode;
 479         uint8_t *operand;
 480         struct ulp_regfile *regfile = parms->regfile;
 481         uint8_t *val = NULL;
 482         struct bnxt_ulp_mapper_class_key_field_info *fld = f;
 483         uint32_t field_size;
 484
 485         if (is_key) {
 486                 operand = fld->spec_operand;
 487                 opcode  = fld->spec_opcode;
 488         } else {
 489                 operand = fld->mask_operand;
 490                 opcode  = fld->mask_opcode;
 491         }
 492
 493         bitlen = fld->field_bit_size;
 494
 495         switch (opcode) {
 496         case BNXT_ULP_SPEC_OPC_SET_TO_CONSTANT:
 497                 val = operand;
 498                 if (!ulp_blob_push(blob, val, bitlen)) {
 499                         BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
 500                         return -EINVAL;
 501                 }
 502                 break;
 503         case BNXT_ULP_SPEC_OPC_ADD_PAD:
 504                 if (!ulp_blob_pad_push(blob, bitlen)) {
 505                         BNXT_TF_DBG(ERR, "%s pad too large for blob\n", name);
 506                         return -EINVAL;
 507                 }
 508
 509                 break;
 510         case BNXT_ULP_SPEC_OPC_SET_TO_HDR_FIELD:
 511                 if (!ulp_operand_read(operand, (uint8_t *)&idx,
 512                                       sizeof(uint16_t))) {
 513                         BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
 514                         return -EINVAL;
 515                 }
 516                 idx = tfp_be_to_cpu_16(idx);
 517                 if (is_key)
 518                         val = parms->hdr_field[idx].spec;
 519                 else
 520                         val = parms->hdr_field[idx].mask;
 521
 522                 /*
 523                  * Need to account for how much data was pushed to the header
 524                  * field vs how much is to be inserted in the key/mask.
 525                  */
 526                 field_size = parms->hdr_field[idx].size;
 527                 if (bitlen < ULP_BYTE_2_BITS(field_size)) {
 528                         field_size  = field_size - ((bitlen + 7) / 8);
 529                         val += field_size;
 530                 }
 531
 532                 if (!ulp_blob_push(blob, val, bitlen)) {
 533                         BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
 534                         return -EINVAL;
 535                 }
 536                 break;
 537         case BNXT_ULP_SPEC_OPC_SET_TO_REGFILE:
 538                 if (!ulp_operand_read(operand, (uint8_t *)&idx,
 539                                       sizeof(uint16_t))) {
 540                         BNXT_TF_DBG(ERR, "%s key operand read failed.\n", name);
 541                         return -EINVAL;
 542                 }
 543                 idx = tfp_be_to_cpu_16(idx);
 544
 545                 if (!ulp_regfile_read(regfile, idx, &regval)) {
 546                         BNXT_TF_DBG(ERR, "%s regfile[%d] read failed.\n",
 547                                     name, idx);
 548                         return -EINVAL;
 549                 }
 550
 551                 val = ulp_blob_push_64(blob, &regval, bitlen);
 552                 if (!val) {
 553                         BNXT_TF_DBG(ERR, "%s push to key blob failed\n", name);
 554                         return -EINVAL;
 555                 }
 556         default:
 557                 break;
 558         }
 559
 560         return 0;
 561 }
 562
 563 /* Function to alloc action record and set the table. */
 564 static int32_t
 565 ulp_mapper_action_alloc_and_set(struct bnxt_ulp_mapper_parms *parms,
 566                                 struct ulp_blob *blob)
 567 {
 568         struct ulp_flow_db_res_params           fid_parms;
 569         struct tf_alloc_tbl_entry_parms         alloc_parms = { 0 };
 570         struct tf_free_tbl_entry_parms          free_parms = { 0 };
 571         struct bnxt_ulp_mapper_act_tbl_info     *atbls = parms->atbls;
 572         int32_t                                 rc = 0;
 573         int32_t trc;
 574         uint64_t                                idx;
 575
 576         /* Set the allocation parameters for the table*/
 577         alloc_parms.dir = atbls->direction;
 578         alloc_parms.type = atbls->table_type;
 579         alloc_parms.search_enable = atbls->srch_b4_alloc;
 580         alloc_parms.result = ulp_blob_data_get(blob,
 581                                                &alloc_parms.result_sz_in_bytes);
 582         if (!alloc_parms.result) {
 583                 BNXT_TF_DBG(ERR, "blob is not populated\n");
 584                 return -EINVAL;
 585         }
 586
 587         rc = tf_alloc_tbl_entry(parms->tfp, &alloc_parms);
 588         if (rc) {
 589                 BNXT_TF_DBG(ERR, "table type= [%d] dir = [%s] alloc failed\n",
 590                             alloc_parms.type,
 591                             (alloc_parms.dir == TF_DIR_RX) ? "RX" : "TX");
 592                 return rc;
 593         }
 594
 595         /* Need to calculate the idx for the result record */
 596         /*
 597          * TBD: Need to get the stride from tflib instead of having to
 598          * understand the construction of the pointer
 599          */
 600         uint64_t tmpidx = alloc_parms.idx;
 601
 602         if (atbls->table_type == TF_TBL_TYPE_EXT)
 603                 tmpidx = (alloc_parms.idx * TF_ACTION_RECORD_SZ) >> 4;
 604         else
 605                 tmpidx = alloc_parms.idx;
 606
 607         idx = tfp_cpu_to_be_64(tmpidx);
 608
 609         /* Store the allocated index for future use in the regfile */
 610         rc = ulp_regfile_write(parms->regfile, atbls->regfile_wr_idx, idx);
 611         if (!rc) {
 612                 BNXT_TF_DBG(ERR, "regfile[%d] write failed\n",
 613                             atbls->regfile_wr_idx);
 614                 rc = -EINVAL;
 615                 goto error;
 616         }
 617
 618         /*
 619          * The set_tbl_entry API if search is not enabled or searched entry
 620          * is not found.
 621          */
 622         if (!atbls->srch_b4_alloc || !alloc_parms.hit) {
 623                 struct tf_set_tbl_entry_parms set_parm = { 0 };
 624                 uint16_t        length;
 625
 626                 set_parm.dir    = atbls->direction;
 627                 set_parm.type   = atbls->table_type;
 628                 set_parm.idx    = alloc_parms.idx;
 629                 set_parm.data   = ulp_blob_data_get(blob, &length);
 630                 set_parm.data_sz_in_bytes = length / 8;
 631
 632                 if (set_parm.type == TF_TBL_TYPE_EXT)
 633                         bnxt_ulp_cntxt_tbl_scope_id_get(parms->ulp_ctx,
 634                                                         &set_parm.tbl_scope_id);
 635                 else
 636                         set_parm.tbl_scope_id = 0;
 637
 638                 /* set the table entry */
 639                 rc = tf_set_tbl_entry(parms->tfp, &set_parm);
 640                 if (rc) {
 641                         BNXT_TF_DBG(ERR, "table[%d][%s][%d] set failed\n",
 642                                     set_parm.type,
 643                                     (set_parm.dir == TF_DIR_RX) ? "RX" : "TX",
 644                                     set_parm.idx);
 645                         goto error;
 646                 }
 647         }
 648
 649         /* Link the resource to the flow in the flow db */
 650         memset(&fid_parms, 0, sizeof(fid_parms));
 651         fid_parms.direction             = atbls->direction;
 652         fid_parms.resource_func         = atbls->resource_func;
 653         fid_parms.resource_type         = atbls->table_type;
 654         fid_parms.resource_hndl         = alloc_parms.idx;
 655         fid_parms.critical_resource     = 0;
 656
 657         rc = ulp_flow_db_resource_add(parms->ulp_ctx,
 658                                       parms->tbl_idx,
 659                                       parms->fid,
 660                                       &fid_parms);
 661         if (rc) {
 662                 BNXT_TF_DBG(ERR, "Failed to link resource to flow rc = %d\n",
 663                             rc);
 664                 rc = -EINVAL;
 665                 goto error;
 666         }
 667
 668         return 0;
 669 error:
 670
 671         free_parms.dir  = alloc_parms.dir;
 672         free_parms.type = alloc_parms.type;
 673         free_parms.idx  = alloc_parms.idx;
 674
 675         trc = tf_free_tbl_entry(parms->tfp, &free_parms);
 676         if (trc)
 677                 BNXT_TF_DBG(ERR, "Failed to free table entry on failure\n");
 678
 679         return rc;
 680 }
 681
 682 /*
 683  * Function to process the action Info. Iterate through the list
 684  * action info templates and process it.
 685  */
 686 static int32_t
 687 ulp_mapper_action_info_process(struct bnxt_ulp_mapper_parms *parms,
 688                                struct bnxt_ulp_mapper_act_tbl_info *tbl)
 689 {
 690         struct ulp_blob                                 blob;
 691         struct bnxt_ulp_mapper_result_field_info        *flds, *fld;
 692         uint32_t                                        num_flds = 0;
 693         uint32_t                                        encap_flds = 0;
 694         uint32_t                                        i;
 695         int32_t                                         rc;
 696         uint16_t                                        bit_size;
 697
 698         if (!tbl || !parms->act_prop || !parms->act_bitmap || !parms->regfile)
 699                 return -EINVAL;
 700
 701         /* use the max size if encap is enabled */
 702         if (tbl->encap_num_fields)
 703                 bit_size = BNXT_ULP_FLMP_BLOB_SIZE_IN_BITS;
 704         else
 705                 bit_size = tbl->result_bit_size;
 706         if (!ulp_blob_init(&blob, bit_size, parms->order)) {
 707                 BNXT_TF_DBG(ERR, "action blob init failed\n");
 708                 return -EINVAL;
 709         }
 710
 711         flds = ulp_mapper_act_result_fields_get(tbl, &num_flds, &encap_flds);
 712         if (!flds || !num_flds) {
 713                 BNXT_TF_DBG(ERR, "Template undefined for action\n");
 714                 return -EINVAL;
 715         }
 716
 717         for (i = 0; i < (num_flds + encap_flds); i++) {
 718                 fld = &flds[i];
 719                 rc = ulp_mapper_result_field_process(parms,
 720                                                      fld,
 721                                                      &blob,
 722                                                      "Action");
 723                 if (rc) {
 724                         BNXT_TF_DBG(ERR, "Action field failed\n");
 725                         return rc;
 726                 }
 727                 /* set the swap index if 64 bit swap is enabled */
 728                 if (parms->encap_byte_swap && encap_flds) {
 729                         if ((i + 1) == num_flds)
 730                                 ulp_blob_encap_swap_idx_set(&blob);
 731                         /* if 64 bit swap is enabled perform the 64bit swap */
 732                         if ((i + 1) == (num_flds + encap_flds))
 733                                 ulp_blob_perform_encap_swap(&blob);
 734                 }
 735         }
 736
 737         rc = ulp_mapper_action_alloc_and_set(parms, &blob);
 738         return rc;
 739 }
 740
 741 static int32_t
 742 ulp_mapper_tcam_tbl_process(struct bnxt_ulp_mapper_parms *parms,
 743                             struct bnxt_ulp_mapper_class_tbl_info *tbl)
 744 {
 745         struct bnxt_ulp_mapper_class_key_field_info     *kflds;
 746         struct ulp_blob key, mask, data;
 747         uint32_t i, num_kflds;
 748         struct tf *tfp;
 749         int32_t rc, trc;
 750         struct tf_alloc_tcam_entry_parms aparms         = { 0 };
 751         struct tf_set_tcam_entry_parms sparms           = { 0 };
 752         struct ulp_flow_db_res_params   fid_parms       = { 0 };
 753         struct tf_free_tcam_entry_parms free_parms      = { 0 };
 754         uint32_t hit = 0;
 755         uint16_t tmplen = 0;
 756
 757         tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
 758         if (!tfp) {
 759                 BNXT_TF_DBG(ERR, "Failed to get truflow pointer\n");
 760                 return -EINVAL;
 761         }
 762
 763         kflds = ulp_mapper_key_fields_get(tbl, &num_kflds);
 764         if (!kflds || !num_kflds) {
 765                 BNXT_TF_DBG(ERR, "Failed to get key fields\n");
 766                 return -EINVAL;
 767         }
 768
 769         if (!ulp_blob_init(&key, tbl->key_bit_size, parms->order) ||
 770             !ulp_blob_init(&mask, tbl->key_bit_size, parms->order) ||
 771             !ulp_blob_init(&data, tbl->result_bit_size, parms->order)) {
 772                 BNXT_TF_DBG(ERR, "blob inits failed.\n");
 773                 return -EINVAL;
 774         }
 775
 776         /* create the key/mask */
 777         /*
 778          * NOTE: The WC table will require some kind of flag to handle the
 779          * mode bits within the key/mask
 780          */
 781         for (i = 0; i < num_kflds; i++) {
 782                 /* Setup the key */
 783                 rc = ulp_mapper_keymask_field_process(parms, &kflds[i],
 784                                                       &key, 1, "TCAM Key");
 785                 if (rc) {
 786                         BNXT_TF_DBG(ERR, "Key field set failed.\n");
 787                         return rc;
 788                 }
 789
 790                 /* Setup the mask */
 791                 rc = ulp_mapper_keymask_field_process(parms, &kflds[i],
 792                                                       &mask, 0, "TCAM Mask");
 793                 if (rc) {
 794                         BNXT_TF_DBG(ERR, "Mask field set failed.\n");
 795                         return rc;
 796                 }
 797         }
 798
 799         aparms.dir              = tbl->direction;
 800         aparms.tcam_tbl_type    = tbl->table_type;
 801         aparms.search_enable    = tbl->srch_b4_alloc;
 802         aparms.key_sz_in_bits   = tbl->key_bit_size;
 803         aparms.key              = ulp_blob_data_get(&key, &tmplen);
 804         if (tbl->key_bit_size != tmplen) {
 805                 BNXT_TF_DBG(ERR, "Key len (%d) != Expected (%d)\n",
 806                             tmplen, tbl->key_bit_size);
 807                 return -EINVAL;
 808         }
 809
 810         aparms.mask             = ulp_blob_data_get(&mask, &tmplen);
 811         if (tbl->key_bit_size != tmplen) {
 812                 BNXT_TF_DBG(ERR, "Mask len (%d) != Expected (%d)\n",
 813                             tmplen, tbl->key_bit_size);
 814                 return -EINVAL;
 815         }
 816
 817         aparms.priority         = tbl->priority;
 818
 819         /*
 820          * All failures after this succeeds require the entry to be freed.
 821          * cannot return directly on failure, but needs to goto error
 822          */
 823         rc = tf_alloc_tcam_entry(tfp, &aparms);
 824         if (rc) {
 825                 BNXT_TF_DBG(ERR, "tcam alloc failed rc=%d.\n", rc);
 826                 return rc;
 827         }
 828
 829         hit = aparms.hit;
 830
 831         /* Build the result */
 832         if (!tbl->srch_b4_alloc || !hit) {
 833                 struct bnxt_ulp_mapper_result_field_info *dflds;
 834                 struct bnxt_ulp_mapper_ident_info *idents;
 835                 uint32_t num_dflds, num_idents;
 836
 837                 /* Alloc identifiers */
 838                 idents = ulp_mapper_ident_fields_get(tbl, &num_idents);
 839
 840                 for (i = 0; i < num_idents; i++) {
 841                         rc = ulp_mapper_ident_process(parms, tbl, &idents[i]);
 842
 843                         /* Already logged the error, just return */
 844                         if (rc)
 845                                 goto error;
 846                 }
 847
 848                 /* Create the result data blob */
 849                 dflds = ulp_mapper_result_fields_get(tbl, &num_dflds);
 850                 if (!dflds || !num_dflds) {
 851                         BNXT_TF_DBG(ERR, "Failed to get data fields.\n");
 852                         rc = -EINVAL;
 853                         goto error;
 854                 }
 855
 856                 for (i = 0; i < num_dflds; i++) {
 857                         rc = ulp_mapper_result_field_process(parms,
 858                                                              &dflds[i],
 859                                                              &data,
 860                                                              "TCAM Result");
 861                         if (rc) {
 862                                 BNXT_TF_DBG(ERR, "Failed to set data fields\n");
 863                                 goto error;
 864                         }
 865                 }
 866
 867                 sparms.dir              = aparms.dir;
 868                 sparms.tcam_tbl_type    = aparms.tcam_tbl_type;
 869                 sparms.idx              = aparms.idx;
 870                 /* Already verified the key/mask lengths */
 871                 sparms.key              = ulp_blob_data_get(&key, &tmplen);
 872                 sparms.mask             = ulp_blob_data_get(&mask, &tmplen);
 873                 sparms.key_sz_in_bits   = tbl->key_bit_size;
 874                 sparms.result           = ulp_blob_data_get(&data, &tmplen);
 875
 876                 if (tbl->result_bit_size != tmplen) {
 877                         BNXT_TF_DBG(ERR, "Result len (%d) != Expected (%d)\n",
 878                                     tmplen, tbl->result_bit_size);
 879                         rc = -EINVAL;
 880                         goto error;
 881                 }
 882                 sparms.result_sz_in_bits = tbl->result_bit_size;
 883
 884                 rc = tf_set_tcam_entry(tfp, &sparms);
 885                 if (rc) {
 886                         BNXT_TF_DBG(ERR, "tcam[%d][%s][%d] write failed.\n",
 887                                     sparms.tcam_tbl_type,
 888                                     (sparms.dir == TF_DIR_RX) ? "RX" : "TX",
 889                                     sparms.idx);
 890                         goto error;
 891                 }
 892         } else {
 893                 BNXT_TF_DBG(ERR, "Not supporting search before alloc now\n");
 894                 rc = -EINVAL;
 895                 goto error;
 896         }
 897
 898         /* Link the resource to the flow in the flow db */
 899         fid_parms.direction = tbl->direction;
 900         fid_parms.resource_func = tbl->resource_func;
 901         fid_parms.resource_type = tbl->table_type;
 902         fid_parms.critical_resource = tbl->critical_resource;
 903         fid_parms.resource_hndl = aparms.idx;
 904
 905         rc = ulp_flow_db_resource_add(parms->ulp_ctx,
 906                                       parms->tbl_idx,
 907                                       parms->fid,
 908                                       &fid_parms);
 909         if (rc) {
 910                 BNXT_TF_DBG(ERR, "Failed to link resource to flow rc = %d\n",
 911                             rc);
 912                 /* Need to free the identifier, so goto error */
 913                 goto error;
 914         }
 915
 916         return 0;
 917 error:
 918         free_parms.dir                  = tbl->direction;
 919         free_parms.tcam_tbl_type        = tbl->table_type;
 920         free_parms.idx                  = aparms.idx;
 921         trc = tf_free_tcam_entry(tfp, &free_parms);
 922         if (trc)
 923                 BNXT_TF_DBG(ERR, "Failed to free tcam[%d][%d][%d] on failure\n",
 924                             tbl->table_type, tbl->direction, aparms.idx);
 925
 926         return rc;
 927 }
 928
 929 static int32_t
 930 ulp_mapper_em_tbl_process(struct bnxt_ulp_mapper_parms *parms,
 931                           struct bnxt_ulp_mapper_class_tbl_info *tbl)
 932 {
 933         struct bnxt_ulp_mapper_class_key_field_info     *kflds;
 934         struct bnxt_ulp_mapper_result_field_info *dflds;
 935         struct ulp_blob key, data;
 936         uint32_t i, num_kflds, num_dflds;
 937         uint16_t tmplen;
 938         struct tf *tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
 939         struct ulp_rte_act_prop  *a_prop = parms->act_prop;
 940         struct ulp_flow_db_res_params   fid_parms = { 0 };
 941         struct tf_insert_em_entry_parms iparms = { 0 };
 942         struct tf_delete_em_entry_parms free_parms = { 0 };
 943         int32_t trc;
 944         int32_t rc = 0;
 945
 946         kflds = ulp_mapper_key_fields_get(tbl, &num_kflds);
 947         if (!kflds || !num_kflds) {
 948                 BNXT_TF_DBG(ERR, "Failed to get key fields\n");
 949                 return -EINVAL;
 950         }
 951
 952         /* Initialize the key/result blobs */
 953         if (!ulp_blob_init(&key, tbl->blob_key_bit_size, parms->order) ||
 954             !ulp_blob_init(&data, tbl->result_bit_size, parms->order)) {
 955                 BNXT_TF_DBG(ERR, "blob inits failed.\n");
 956                 return -EINVAL;
 957         }
 958
 959         /* create the key */
 960         for (i = 0; i < num_kflds; i++) {
 961                 /* Setup the key */
 962                 rc = ulp_mapper_keymask_field_process(parms, &kflds[i],
 963                                                       &key, 1, "EM Key");
 964                 if (rc) {
 965                         BNXT_TF_DBG(ERR, "Key field set failed.\n");
 966                         return rc;
 967                 }
 968         }
 969
 970         /*
 971          * TBD: Normally should process identifiers in case of using recycle or
 972          * loopback.  Not supporting recycle for now.
 973          */
 974
 975         /* Create the result data blob */
 976         dflds = ulp_mapper_result_fields_get(tbl, &num_dflds);
 977         if (!dflds || !num_dflds) {
 978                 BNXT_TF_DBG(ERR, "Failed to get data fields.\n");
 979                 return -EINVAL;
 980         }
 981
 982         for (i = 0; i < num_dflds; i++) {
 983                 struct bnxt_ulp_mapper_result_field_info *fld;
 984
 985                 fld = &dflds[i];
 986
 987                 rc = ulp_mapper_result_field_process(parms,
 988                                                      fld,
 989                                                      &data,
 990                                                      "EM Result");
 991                 if (rc) {
 992                         BNXT_TF_DBG(ERR, "Failed to set data fields.\n");
 993                         return rc;
 994                 }
 995         }
 996
 997         rc = bnxt_ulp_cntxt_tbl_scope_id_get(parms->ulp_ctx,
 998                                              &iparms.tbl_scope_id);
 999         if (rc) {
1000                 BNXT_TF_DBG(ERR, "Failed to get table scope rc=%d\n", rc);
1001                 return rc;
1002         }
1003
1004         /*
1005          * NOTE: the actual blob size will differ from the size in the tbl
1006          * entry due to the padding.
1007          */
1008         iparms.dup_check                = 0;
1009         iparms.dir                      = tbl->direction;
1010         iparms.mem                      = tbl->mem;
1011         iparms.key                      = ulp_blob_data_get(&key, &tmplen);
1012         iparms.key_sz_in_bits           = tbl->key_bit_size;
1013         iparms.em_record                = ulp_blob_data_get(&data, &tmplen);
1014         iparms.em_record_sz_in_bits     = tbl->result_bit_size;
1015
1016         rc = tf_insert_em_entry(tfp, &iparms);
1017         if (rc) {
1018                 BNXT_TF_DBG(ERR, "Failed to insert em entry rc=%d.\n", rc);
1019                 return rc;
1020         }
1021
1022         if (tbl->mark_enable &&
1023             ULP_BITMAP_ISSET(parms->act_bitmap->bits,
1024                              BNXT_ULP_ACTION_BIT_MARK)) {
1025                 uint32_t val, mark, gfid, flag;
1026                 /* TBD: Need to determine if GFID is enabled globally */
1027                 if (sizeof(val) != BNXT_ULP_ACT_PROP_SZ_MARK) {
1028                         BNXT_TF_DBG(ERR, "Mark size (%d) != expected (%zu)\n",
1029                                     BNXT_ULP_ACT_PROP_SZ_MARK, sizeof(val));
1030                         rc = -EINVAL;
1031                         goto error;
1032                 }
1033
1034                 memcpy(&val,
1035                        &a_prop->act_details[BNXT_ULP_ACT_PROP_IDX_MARK],
1036                        sizeof(val));
1037
1038                 mark = tfp_be_to_cpu_32(val);
1039
1040                 TF_GET_GFID_FROM_FLOW_ID(iparms.flow_id, gfid);
1041                 TF_GET_FLAG_FROM_FLOW_ID(iparms.flow_id, flag);
1042
1043                 rc = ulp_mark_db_mark_add(parms->ulp_ctx,
1044                                           (flag == TF_GFID_TABLE_EXTERNAL),
1045                                           gfid,
1046                                           mark);
1047                 if (rc) {
1048                         BNXT_TF_DBG(ERR, "Failed to add mark to flow\n");
1049                         goto error;
1050                 }
1051
1052                 /*
1053                  * Link the mark resource to the flow in the flow db
1054                  * The mark is never the critical resource, so it is 0.
1055                  */
1056                 memset(&fid_parms, 0, sizeof(fid_parms));
1057                 fid_parms.direction     = tbl->direction;
1058                 fid_parms.resource_func = BNXT_ULP_RESOURCE_FUNC_HW_FID;
1059                 fid_parms.resource_type = tbl->table_type;
1060                 fid_parms.resource_hndl = iparms.flow_id;
1061                 fid_parms.critical_resource = 0;
1062
1063                 rc = ulp_flow_db_resource_add(parms->ulp_ctx,
1064                                               parms->tbl_idx,
1065                                               parms->fid,
1066                                               &fid_parms);
1067                 if (rc) {
1068                         BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n",
1069                                     rc);
1070                         /* Need to free the identifier, so goto error */
1071                         goto error;
1072                 }
1073         }
1074
1075         /* Link the EM resource to the flow in the flow db */
1076         memset(&fid_parms, 0, sizeof(fid_parms));
1077         fid_parms.direction             = tbl->direction;
1078         fid_parms.resource_func         = tbl->resource_func;
1079         fid_parms.resource_type         = tbl->table_type;
1080         fid_parms.critical_resource     = tbl->critical_resource;
1081         fid_parms.resource_hndl         = iparms.flow_handle;
1082
1083         rc = ulp_flow_db_resource_add(parms->ulp_ctx,
1084                                       parms->tbl_idx,
1085                                       parms->fid,
1086                                       &fid_parms);
1087         if (rc) {
1088                 BNXT_TF_DBG(ERR, "Fail to link res to flow rc = %d\n",
1089                             rc);
1090                 /* Need to free the identifier, so goto error */
1091                 goto error;
1092         }
1093
1094         return 0;
1095 error:
1096         free_parms.dir          = iparms.dir;
1097         free_parms.mem          = iparms.mem;
1098         free_parms.tbl_scope_id = iparms.tbl_scope_id;
1099         free_parms.flow_handle  = iparms.flow_handle;
1100
1101         trc = tf_delete_em_entry(tfp, &free_parms);
1102         if (trc)
1103                 BNXT_TF_DBG(ERR, "Failed to delete EM entry on failed add\n");
1104
1105         return rc;
1106 }
1107
1108 static int32_t
1109 ulp_mapper_index_tbl_process(struct bnxt_ulp_mapper_parms *parms,
1110                              struct bnxt_ulp_mapper_class_tbl_info *tbl)
1111 {
1112         struct bnxt_ulp_mapper_result_field_info *flds;
1113         struct ulp_flow_db_res_params   fid_parms;
1114         struct ulp_blob data;
1115         uint64_t idx;
1116         uint16_t tmplen;
1117         uint32_t i, num_flds;
1118         int32_t rc = 0, trc = 0;
1119         struct tf_alloc_tbl_entry_parms aparms = { 0 };
1120         struct tf_set_tbl_entry_parms   sparms = { 0 };
1121         struct tf_free_tbl_entry_parms  free_parms = { 0 };
1122
1123         struct tf *tfp = bnxt_ulp_cntxt_tfp_get(parms->ulp_ctx);
1124
1125         if (!ulp_blob_init(&data, tbl->result_bit_size, parms->order)) {
1126                 BNXT_TF_DBG(ERR, "Failed initial index table blob\n");
1127                 return -EINVAL;
1128         }
1129
1130         flds = ulp_mapper_result_fields_get(tbl, &num_flds);
1131         if (!flds || !num_flds) {
1132                 BNXT_TF_DBG(ERR, "Template undefined for action\n");
1133                 return -EINVAL;
1134         }
1135
1136         for (i = 0; i < num_flds; i++) {
1137                 rc = ulp_mapper_result_field_process(parms,
1138                                                      &flds[i],
1139                                                      &data,
1140                                                      "Indexed Result");
1141                 if (rc) {
1142                         BNXT_TF_DBG(ERR, "data field failed\n");
1143                         return rc;
1144                 }
1145         }
1146
1147         aparms.dir              = tbl->direction;
1148         aparms.type             = tbl->table_type;
1149         aparms.search_enable    = tbl->srch_b4_alloc;
1150         aparms.result           = ulp_blob_data_get(&data, &tmplen);
1151         aparms.result_sz_in_bytes = ULP_SZ_BITS2BYTES(tbl->result_bit_size);
1152
1153         /* All failures after the alloc succeeds require a free */
1154         rc = tf_alloc_tbl_entry(tfp, &aparms);
1155         if (rc) {
1156                 BNXT_TF_DBG(ERR, "Alloc table[%d][%s] failed rc=%d\n",
1157                             tbl->table_type,
1158                             (tbl->direction == TF_DIR_RX) ? "RX" : "TX",
1159                             rc);
1160                 return rc;
1161         }
1162
1163         /* Always storing values in Regfile in BE */
1164         idx = tfp_cpu_to_be_64(aparms.idx);
1165         rc = ulp_regfile_write(parms->regfile, tbl->regfile_wr_idx, idx);
1166         if (!rc) {
1167                 BNXT_TF_DBG(ERR, "Write regfile[%d] failed\n",
1168                             tbl->regfile_wr_idx);
1169                 goto error;
1170         }
1171
1172         if (!tbl->srch_b4_alloc) {
1173                 sparms.dir              = tbl->direction;
1174                 sparms.type             = tbl->table_type;
1175                 sparms.data             = ulp_blob_data_get(&data, &tmplen);
1176                 sparms.data_sz_in_bytes =
1177                         ULP_SZ_BITS2BYTES(tbl->result_bit_size);
1178                 sparms.idx              = aparms.idx;
1179
1180                 rc = tf_set_tbl_entry(tfp, &sparms);
1181                 if (rc) {
1182                         BNXT_TF_DBG(ERR, "Set table[%d][%s][%d] failed rc=%d\n",
1183                                     tbl->table_type,
1184                                     (tbl->direction == TF_DIR_RX) ? "RX" : "TX",
1185                                     sparms.idx,
1186                                     rc);
1187
1188                         goto error;
1189                 }
1190         }
1191
1192         /* Link the resource to the flow in the flow db */
1193         memset(&fid_parms, 0, sizeof(fid_parms));
1194         fid_parms.direction     = tbl->direction;
1195         fid_parms.resource_func = tbl->resource_func;
1196         fid_parms.resource_type = tbl->table_type;
1197         fid_parms.resource_hndl = aparms.idx;
1198         fid_parms.critical_resource     = 0;
1199
1200         rc = ulp_flow_db_resource_add(parms->ulp_ctx,
1201                                       parms->tbl_idx,
1202                                       parms->fid,
1203                                       &fid_parms);
1204         if (rc) {
1205                 BNXT_TF_DBG(ERR, "Failed to link resource to flow rc = %d\n",
1206                             rc);
1207                 goto error;
1208         }
1209
1210         return rc;
1211 error:
1212         /*
1213          * Free the allocated resource since we failed to either
1214          * write to the entry or link the flow
1215          */
1216         free_parms.dir  = tbl->direction;
1217         free_parms.type = tbl->table_type;
1218         free_parms.idx  = aparms.idx;
1219
1220         trc = tf_free_tbl_entry(tfp, &free_parms);
1221         if (trc)
1222                 BNXT_TF_DBG(ERR, "Failed to free tbl entry on failure\n");
1223
1224         return rc;
1225 }
1226
1227 /*
1228  * Function to process the action template. Iterate through the list
1229  * action info templates and process it.
1230  */
1231 static int32_t
1232 ulp_mapper_action_tbls_process(struct bnxt_ulp_mapper_parms *parms)
1233 {
1234         uint32_t        i;
1235         int32_t         rc = 0;
1236
1237         if (!parms->atbls || !parms->num_atbls) {
1238                 BNXT_TF_DBG(ERR, "No action tables for template[%d][%d].\n",
1239                             parms->dev_id, parms->act_tid);
1240                 return -EINVAL;
1241         }
1242
1243         for (i = 0; i < parms->num_atbls; i++) {
1244                 rc = ulp_mapper_action_info_process(parms, &parms->atbls[i]);
1245                 if (rc)
1246                         return rc;
1247         }
1248
1249         return rc;
1250 }
1251
1252 /* Create the classifier table entries for a flow. */
1253 static int32_t
1254 ulp_mapper_class_tbls_process(struct bnxt_ulp_mapper_parms *parms)
1255 {
1256         uint32_t        i;
1257         int32_t         rc = 0;
1258
1259         if (!parms)
1260                 return -EINVAL;
1261
1262         if (!parms->ctbls || !parms->num_ctbls) {
1263                 BNXT_TF_DBG(ERR, "No class tables for template[%d][%d].\n",
1264                             parms->dev_id, parms->class_tid);
1265                 return -EINVAL;
1266         }
1267
1268         for (i = 0; i < parms->num_ctbls; i++) {
1269                 struct bnxt_ulp_mapper_class_tbl_info *tbl = &parms->ctbls[i];
1270
1271                 switch (tbl->resource_func) {
1272                 case BNXT_ULP_RESOURCE_FUNC_TCAM_TABLE:
1273                         rc = ulp_mapper_tcam_tbl_process(parms, tbl);
1274                         break;
1275                 case BNXT_ULP_RESOURCE_FUNC_EM_TABLE:
1276                         rc = ulp_mapper_em_tbl_process(parms, tbl);
1277                         break;
1278                 case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
1279                         rc = ulp_mapper_index_tbl_process(parms, tbl);
1280                         break;
1281                 default:
1282                         BNXT_TF_DBG(ERR, "Unexpected class resource %d\n",
1283                                     tbl->resource_func);
1284                         return -EINVAL;
1285                 }
1286
1287                 if (rc) {
1288                         BNXT_TF_DBG(ERR, "Resource type %d failed\n",
1289                                     tbl->resource_func);
1290                         return rc;
1291                 }
1292         }
1293
1294         return rc;
1295 }
1296
1297 static int32_t
1298 ulp_mapper_resource_free(struct bnxt_ulp_context *ulp,
1299                          struct ulp_flow_db_res_params *res)
1300 {
1301         struct tf *tfp;
1302         int32_t rc = 0;
1303
1304         if (!res || !ulp) {
1305                 BNXT_TF_DBG(ERR, "Unable to free resource\n ");
1306                 return -EINVAL;
1307         }
1308
1309         tfp = bnxt_ulp_cntxt_tfp_get(ulp);
1310         if (!tfp) {
1311                 BNXT_TF_DBG(ERR, "Unable to free resource failed to get tfp\n");
1312                 return -EINVAL;
1313         }
1314
1315         switch (res->resource_func) {
1316         case BNXT_ULP_RESOURCE_FUNC_TCAM_TABLE:
1317                 rc = ulp_mapper_tcam_entry_free(ulp, tfp, res);
1318                 break;
1319         case BNXT_ULP_RESOURCE_FUNC_EM_TABLE:
1320                 rc = ulp_mapper_eem_entry_free(ulp, tfp, res);
1321                 break;
1322         case BNXT_ULP_RESOURCE_FUNC_INDEX_TABLE:
1323                 rc = ulp_mapper_index_entry_free(ulp, tfp, res);
1324                 break;
1325         case BNXT_ULP_RESOURCE_FUNC_IDENTIFIER:
1326                 rc = ulp_mapper_ident_free(ulp, tfp, res);
1327                 break;
1328         case BNXT_ULP_RESOURCE_FUNC_HW_FID:
1329                 rc = ulp_mapper_mark_free(ulp, res);
1330                 break;
1331         default:
1332                 break;
1333         }
1334
1335         return rc;
1336 }
1337
1338 int32_t
1339 ulp_mapper_resources_free(struct bnxt_ulp_context       *ulp_ctx,
1340                           uint32_t fid,
1341                           enum bnxt_ulp_flow_db_tables  tbl_type)
1342 {
1343         struct ulp_flow_db_res_params   res_parms = { 0 };
1344         int32_t                         rc, trc;
1345
1346         if (!ulp_ctx) {
1347                 BNXT_TF_DBG(ERR, "Invalid parms, unable to free flow\n");
1348                 return -EINVAL;
1349         }
1350
1351         /*
1352          * Set the critical resource on the first resource del, then iterate
1353          * while status is good
1354          */
1355         res_parms.critical_resource = 1;
1356         rc = ulp_flow_db_resource_del(ulp_ctx, tbl_type, fid, &res_parms);
1357
1358         if (rc) {
1359                 /*
1360                  * This is unexpected on the first call to resource del.
1361                  * It likely means that the flow did not exist in the flow db.
1362                  */
1363                 BNXT_TF_DBG(ERR, "Flow[%d][0x%08x] failed to free (rc=%d)\n",
1364                             tbl_type, fid, rc);
1365                 return rc;
1366         }
1367
1368         while (!rc) {
1369                 trc = ulp_mapper_resource_free(ulp_ctx, &res_parms);
1370                 if (trc)
1371                         /*
1372                          * On fail, we still need to attempt to free the
1373                          * remaining resources.  Don't return
1374                          */
1375                         BNXT_TF_DBG(ERR,
1376                                     "Flow[%d][0x%x] Res[%d][0x%016" PRIx64
1377                                     "] failed rc=%d.\n",
1378                                     tbl_type, fid, res_parms.resource_func,
1379                                     res_parms.resource_hndl, trc);
1380
1381                 /* All subsequent call require the critical_resource be zero */
1382                 res_parms.critical_resource = 0;
1383
1384                 rc = ulp_flow_db_resource_del(ulp_ctx,
1385                                               tbl_type,
1386                                               fid,
1387                                               &res_parms);
1388         }
1389
1390         /* Free the Flow ID since we've removed all resources */
1391         rc = ulp_flow_db_fid_free(ulp_ctx, tbl_type, fid);
1392
1393         return rc;
1394 }
1395
1396 int32_t
1397 ulp_mapper_flow_destroy(struct bnxt_ulp_context *ulp_ctx, uint32_t fid)
1398 {
1399         if (!ulp_ctx) {
1400                 BNXT_TF_DBG(ERR, "Invalid parms, unable to free flow\n");
1401                 return -EINVAL;
1402         }
1403
1404         return ulp_mapper_resources_free(ulp_ctx,
1405                                          fid,
1406                                          BNXT_ULP_REGULAR_FLOW_TABLE);
1407 }
1408
1409 /* Function to handle the mapping of the Flow to be compatible
1410  * with the underlying hardware.
1411  */
1412 int32_t
1413 ulp_mapper_flow_create(struct bnxt_ulp_context *ulp_ctx,
1414                        struct bnxt_ulp_mapper_create_parms *cparms,
1415                        uint32_t *flowid)
1416 {
1417         struct bnxt_ulp_device_params *device_params;
1418         struct bnxt_ulp_mapper_parms parms;
1419         struct ulp_regfile regfile;
1420         int32_t  rc, trc;
1421
1422         if (!ulp_ctx || !cparms)
1423                 return -EINVAL;
1424
1425         /* Initialize the parms structure */
1426         memset(&parms, 0, sizeof(parms));
1427         parms.act_prop = cparms->act_prop;
1428         parms.act_bitmap = cparms->act;
1429         parms.regfile = &regfile;
1430         parms.hdr_field = cparms->hdr_field;
1431         parms.tfp = bnxt_ulp_cntxt_tfp_get(ulp_ctx);
1432         parms.ulp_ctx = ulp_ctx;
1433
1434         /* Get the device id from the ulp context */
1435         if (bnxt_ulp_cntxt_dev_id_get(ulp_ctx, &parms.dev_id)) {
1436                 BNXT_TF_DBG(ERR, "Invalid ulp context\n");
1437                 return -EINVAL;
1438         }
1439
1440         /* Get the action table entry from device id and act context id */
1441         parms.act_tid = cparms->act_tid;
1442         parms.atbls = ulp_mapper_action_tbl_list_get(parms.dev_id,
1443                                                      parms.act_tid,
1444                                                      &parms.num_atbls);
1445         if (!parms.atbls || !parms.num_atbls) {
1446                 BNXT_TF_DBG(ERR, "No action tables for %d:%d\n",
1447                             parms.dev_id, parms.act_tid);
1448                 return -EINVAL;
1449         }
1450
1451         /* Get the class table entry from device id and act context id */
1452         parms.class_tid = cparms->class_tid;
1453         parms.ctbls = ulp_mapper_class_tbl_list_get(parms.dev_id,
1454                                                     parms.class_tid,
1455                                                     &parms.num_ctbls);
1456         if (!parms.ctbls || !parms.num_ctbls) {
1457                 BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
1458                             parms.dev_id, parms.class_tid);
1459                 return -EINVAL;
1460         }
1461
1462         /* Get the byte order for the further processing from device params */
1463         device_params = bnxt_ulp_device_params_get(parms.dev_id);
1464         if (!device_params) {
1465                 BNXT_TF_DBG(ERR, "No class tables for %d:%d\n",
1466                             parms.dev_id, parms.class_tid);
1467                 return -EINVAL;
1468         }
1469         parms.order = device_params->byte_order;
1470         parms.encap_byte_swap = device_params->encap_byte_swap;
1471
1472         /* initialize the registry file for further processing */
1473         if (!ulp_regfile_init(parms.regfile)) {
1474                 BNXT_TF_DBG(ERR, "regfile initialization failed.\n");
1475                 return -EINVAL;
1476         }
1477
1478         /* Allocate a Flow ID for attaching all resources for the flow to.
1479          * Once allocated, all errors have to walk the list of resources and
1480          * free each of them.
1481          */
1482         rc = ulp_flow_db_fid_alloc(ulp_ctx,
1483                                    BNXT_ULP_REGULAR_FLOW_TABLE,
1484                                    &parms.fid);
1485         if (rc) {
1486                 BNXT_TF_DBG(ERR, "Unable to allocate flow table entry\n");
1487                 return rc;
1488         }
1489
1490         /* Process the action template list from the selected action table*/
1491         rc = ulp_mapper_action_tbls_process(&parms);
1492         if (rc) {
1493                 BNXT_TF_DBG(ERR, "action tables failed creation for %d:%d\n",
1494                             parms.dev_id, parms.act_tid);
1495                 goto flow_error;
1496         }
1497
1498         /* All good. Now process the class template */
1499         rc = ulp_mapper_class_tbls_process(&parms);
1500         if (rc) {
1501                 BNXT_TF_DBG(ERR, "class tables failed creation for %d:%d\n",
1502                             parms.dev_id, parms.class_tid);
1503                 goto flow_error;
1504         }
1505
1506         *flowid = parms.fid;
1507
1508         return rc;
1509
1510 flow_error:
1511         /* Free all resources that were allocated during flow creation */
1512         trc = ulp_mapper_flow_destroy(ulp_ctx, parms.fid);
1513         if (trc)
1514                 BNXT_TF_DBG(ERR, "Failed to free all resources rc=%d\n", trc);
1515
1516         return rc;
1517 }