drivers/net/bnxt/tf_ulp/bnxt_ulp_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2014-2021 Broadcom
   3  * All rights reserved.
   4  */
   5
   6 #include "bnxt.h"
   7 #include "bnxt_tf_common.h"
   8 #include "ulp_rte_parser.h"
   9 #include "ulp_matcher.h"
  10 #include "ulp_flow_db.h"
  11 #include "ulp_mapper.h"
  12 #include "ulp_fc_mgr.h"
  13 #include "ulp_port_db.h"
  14 #include "ulp_ha_mgr.h"
  15 #include "ulp_tun.h"
  16 #include <rte_malloc.h>
  17
  18 static int32_t
  19 bnxt_ulp_flow_validate_args(const struct rte_flow_attr *attr,
  20                             const struct rte_flow_item pattern[],
  21                             const struct rte_flow_action actions[],
  22                             struct rte_flow_error *error)
  23 {
  24         /* Perform the validation of the arguments for null */
  25         if (!error)
  26                 return BNXT_TF_RC_ERROR;
  27
  28         if (!pattern) {
  29                 rte_flow_error_set(error,
  30                                    EINVAL,
  31                                    RTE_FLOW_ERROR_TYPE_ITEM_NUM,
  32                                    NULL,
  33                                    "NULL pattern.");
  34                 return BNXT_TF_RC_ERROR;
  35         }
  36
  37         if (!actions) {
  38                 rte_flow_error_set(error,
  39                                    EINVAL,
  40                                    RTE_FLOW_ERROR_TYPE_ACTION_NUM,
  41                                    NULL,
  42                                    "NULL action.");
  43                 return BNXT_TF_RC_ERROR;
  44         }
  45
  46         if (!attr) {
  47                 rte_flow_error_set(error,
  48                                    EINVAL,
  49                                    RTE_FLOW_ERROR_TYPE_ATTR,
  50                                    NULL,
  51                                    "NULL attribute.");
  52                 return BNXT_TF_RC_ERROR;
  53         }
  54
  55         if (attr->egress && attr->ingress) {
  56                 rte_flow_error_set(error,
  57                                    EINVAL,
  58                                    RTE_FLOW_ERROR_TYPE_ATTR,
  59                                    attr,
  60                                    "EGRESS AND INGRESS UNSUPPORTED");
  61                 return BNXT_TF_RC_ERROR;
  62         }
  63         return BNXT_TF_RC_SUCCESS;
  64 }
  65
  66 static inline void
  67 bnxt_ulp_set_dir_attributes(struct ulp_rte_parser_params *params,
  68                             const struct rte_flow_attr *attr)
  69 {
  70         /* Set the flow attributes */
  71         if (attr->egress)
  72                 params->dir_attr |= BNXT_ULP_FLOW_ATTR_EGRESS;
  73         if (attr->ingress)
  74                 params->dir_attr |= BNXT_ULP_FLOW_ATTR_INGRESS;
  75 #if RTE_VERSION_NUM(17, 11, 10, 16) < RTE_VERSION
  76         if (attr->transfer)
  77                 params->dir_attr |= BNXT_ULP_FLOW_ATTR_TRANSFER;
  78 #endif
  79 }
  80
  81 void
  82 bnxt_ulp_init_mapper_params(struct bnxt_ulp_mapper_create_parms *mapper_cparms,
  83                             struct ulp_rte_parser_params *params,
  84                             enum bnxt_ulp_fdb_type flow_type)
  85 {
  86         uint32_t ulp_flags = 0;
  87
  88         memset(mapper_cparms, 0, sizeof(*mapper_cparms));
  89         mapper_cparms->flow_type = flow_type;
  90         mapper_cparms->app_priority = params->priority;
  91         mapper_cparms->dir_attr = params->dir_attr;
  92         mapper_cparms->class_tid = params->class_id;
  93         mapper_cparms->act_tid = params->act_tmpl;
  94         mapper_cparms->func_id = params->func_id;
  95         mapper_cparms->hdr_bitmap = &params->hdr_bitmap;
  96         mapper_cparms->enc_hdr_bitmap = &params->enc_hdr_bitmap;
  97         mapper_cparms->hdr_field = params->hdr_field;
  98         mapper_cparms->enc_field = params->enc_field;
  99         mapper_cparms->comp_fld = params->comp_fld;
 100         mapper_cparms->act = &params->act_bitmap;
 101         mapper_cparms->act_prop = &params->act_prop;
 102         mapper_cparms->flow_id = params->fid;
 103         mapper_cparms->parent_flow = params->parent_flow;
 104         mapper_cparms->child_flow = params->child_flow;
 105         mapper_cparms->fld_bitmap = &params->fld_bitmap;
 106         mapper_cparms->flow_pattern_id = params->flow_pattern_id;
 107         mapper_cparms->act_pattern_id = params->act_pattern_id;
 108         mapper_cparms->app_id = params->app_id;
 109         mapper_cparms->port_id = params->port_id;
 110         mapper_cparms->tun_idx = params->tun_idx;
 111
 112         /* update the signature fields into the computed field list */
 113         ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_HDR_SIG_ID,
 114                             params->hdr_sig_id);
 115         ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_FLOW_SIG_ID,
 116                             params->flow_sig_id);
 117
 118         if (bnxt_ulp_cntxt_ptr2_ulp_flags_get(params->ulp_ctx, &ulp_flags))
 119                 return;
 120
 121         /* update the WC Priority flag */
 122         if (ULP_HIGH_AVAIL_IS_ENABLED(ulp_flags)) {
 123                 enum ulp_ha_mgr_region region = ULP_HA_REGION_LOW;
 124                 int32_t rc;
 125
 126                 rc = ulp_ha_mgr_region_get(params->ulp_ctx, &region);
 127                 if (rc)
 128                         BNXT_TF_DBG(ERR, "Unable to get WC region\n");
 129                 if (region == ULP_HA_REGION_HI)
 130                         ULP_COMP_FLD_IDX_WR(params,
 131                                             BNXT_ULP_CF_IDX_WC_IS_HA_HIGH_REG,
 132                                             1);
 133         }
 134
 135         /* Update the socket direct flag */
 136         if (ULP_BITMAP_ISSET(params->hdr_bitmap.bits,
 137                              BNXT_ULP_HDR_BIT_SVIF_IGNORE)) {
 138                 uint32_t ifindex;
 139                 uint16_t vport;
 140
 141                 /* Get the port db ifindex */
 142                 if (ulp_port_db_dev_port_to_ulp_index(params->ulp_ctx,
 143                                                       params->port_id,
 144                                                       &ifindex)) {
 145                         BNXT_TF_DBG(ERR, "Invalid port id %u\n",
 146                                     params->port_id);
 147                         return;
 148                 }
 149                 /* Update the phy port of the other interface */
 150                 if (ulp_port_db_vport_get(params->ulp_ctx, ifindex, &vport)) {
 151                         BNXT_TF_DBG(ERR, "Invalid port if index %u\n", ifindex);
 152                         return;
 153                 }
 154                 ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_SOCKET_DIRECT_VPORT,
 155                                     (vport == 1) ? 2 : 1);
 156         }
 157 }
 158
 159 /* Function to create the rte flow. */
 160 static struct rte_flow *
 161 bnxt_ulp_flow_create(struct rte_eth_dev *dev,
 162                      const struct rte_flow_attr *attr,
 163                      const struct rte_flow_item pattern[],
 164                      const struct rte_flow_action actions[],
 165                      struct rte_flow_error *error)
 166 {
 167         struct bnxt_ulp_mapper_create_parms mapper_cparms = { 0 };
 168         struct ulp_rte_parser_params params;
 169         struct bnxt_ulp_context *ulp_ctx;
 170         int rc, ret = BNXT_TF_RC_ERROR;
 171         struct rte_flow *flow_id;
 172         uint16_t func_id;
 173         uint32_t fid;
 174
 175         if (bnxt_ulp_flow_validate_args(attr,
 176                                         pattern, actions,
 177                                         error) == BNXT_TF_RC_ERROR) {
 178                 BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
 179                 goto flow_error;
 180         }
 181
 182         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 183         if (!ulp_ctx) {
 184                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 185                 goto flow_error;
 186         }
 187
 188         /* Initialize the parser params */
 189         memset(&params, 0, sizeof(struct ulp_rte_parser_params));
 190         params.ulp_ctx = ulp_ctx;
 191
 192         if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
 193                 BNXT_TF_DBG(ERR, "failed to get the app id\n");
 194                 goto flow_error;
 195         }
 196
 197         /* Set the flow attributes */
 198         bnxt_ulp_set_dir_attributes(&params, attr);
 199
 200         /* copy the device port id and direction for further processing */
 201         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_INCOMING_IF,
 202                             dev->data->port_id);
 203         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_DEV_PORT_ID,
 204                             dev->data->port_id);
 205         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_SVIF_FLAG,
 206                             BNXT_ULP_INVALID_SVIF_VAL);
 207
 208         /* Get the function id */
 209         if (ulp_port_db_port_func_id_get(ulp_ctx,
 210                                          dev->data->port_id,
 211                                          &func_id)) {
 212                 BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
 213                 goto flow_error;
 214         }
 215
 216         /* Protect flow creation */
 217         if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
 218                 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
 219                 goto flow_error;
 220         }
 221
 222         /* Allocate a Flow ID for attaching all resources for the flow to.
 223          * Once allocated, all errors have to walk the list of resources and
 224          * free each of them.
 225          */
 226         rc = ulp_flow_db_fid_alloc(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
 227                                    func_id, &fid);
 228         if (rc) {
 229                 BNXT_TF_DBG(ERR, "Unable to allocate flow table entry\n");
 230                 goto release_lock;
 231         }
 232
 233         /* Parse the rte flow pattern */
 234         ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
 235         if (ret != BNXT_TF_RC_SUCCESS)
 236                 goto free_fid;
 237
 238         /* Parse the rte flow action */
 239         ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
 240         if (ret != BNXT_TF_RC_SUCCESS)
 241                 goto free_fid;
 242
 243         params.fid = fid;
 244         params.func_id = func_id;
 245         params.priority = attr->priority;
 246         params.port_id = dev->data->port_id;
 247
 248         /* Perform the rte flow post process */
 249         bnxt_ulp_rte_parser_post_process(&params);
 250
 251         /* do the tunnel offload process if any */
 252         ret = ulp_tunnel_offload_process(&params);
 253         if (ret == BNXT_TF_RC_ERROR)
 254                 goto free_fid;
 255
 256         ret = ulp_matcher_pattern_match(&params, &params.class_id);
 257         if (ret != BNXT_TF_RC_SUCCESS)
 258                 goto free_fid;
 259
 260         ret = ulp_matcher_action_match(&params, &params.act_tmpl);
 261         if (ret != BNXT_TF_RC_SUCCESS)
 262                 goto free_fid;
 263
 264         bnxt_ulp_init_mapper_params(&mapper_cparms, &params,
 265                                     BNXT_ULP_FDB_TYPE_REGULAR);
 266         /* Call the ulp mapper to create the flow in the hardware. */
 267         ret = ulp_mapper_flow_create(ulp_ctx, &mapper_cparms);
 268         if (ret)
 269                 goto free_fid;
 270
 271         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 272
 273         flow_id = (struct rte_flow *)((uintptr_t)fid);
 274         return flow_id;
 275
 276 free_fid:
 277         ulp_flow_db_fid_free(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR, fid);
 278 release_lock:
 279         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 280 flow_error:
 281         rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 282                            "Failed to create flow.");
 283         return NULL;
 284 }
 285
 286 /* Function to validate the rte flow. */
 287 static int
 288 bnxt_ulp_flow_validate(struct rte_eth_dev *dev,
 289                        const struct rte_flow_attr *attr,
 290                        const struct rte_flow_item pattern[],
 291                        const struct rte_flow_action actions[],
 292                        struct rte_flow_error *error)
 293 {
 294         struct ulp_rte_parser_params params;
 295         struct bnxt_ulp_context *ulp_ctx;
 296         uint32_t class_id, act_tmpl;
 297         int ret = BNXT_TF_RC_ERROR;
 298
 299         if (bnxt_ulp_flow_validate_args(attr,
 300                                         pattern, actions,
 301                                         error) == BNXT_TF_RC_ERROR) {
 302                 BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
 303                 goto parse_error;
 304         }
 305
 306         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 307         if (!ulp_ctx) {
 308                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 309                 goto parse_error;
 310         }
 311
 312         /* Initialize the parser params */
 313         memset(&params, 0, sizeof(struct ulp_rte_parser_params));
 314         params.ulp_ctx = ulp_ctx;
 315
 316         if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
 317                 BNXT_TF_DBG(ERR, "failed to get the app id\n");
 318                 goto parse_error;
 319         }
 320
 321         /* Set the flow attributes */
 322         bnxt_ulp_set_dir_attributes(&params, attr);
 323
 324         /* Parse the rte flow pattern */
 325         ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
 326         if (ret != BNXT_TF_RC_SUCCESS)
 327                 goto parse_error;
 328
 329         /* Parse the rte flow action */
 330         ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
 331         if (ret != BNXT_TF_RC_SUCCESS)
 332                 goto parse_error;
 333
 334         /* Perform the rte flow post process */
 335         bnxt_ulp_rte_parser_post_process(&params);
 336
 337         /* do the tunnel offload process if any */
 338         ret = ulp_tunnel_offload_process(&params);
 339         if (ret == BNXT_TF_RC_ERROR)
 340                 goto parse_error;
 341
 342         ret = ulp_matcher_pattern_match(&params, &class_id);
 343
 344         if (ret != BNXT_TF_RC_SUCCESS)
 345                 goto parse_error;
 346
 347         ret = ulp_matcher_action_match(&params, &act_tmpl);
 348         if (ret != BNXT_TF_RC_SUCCESS)
 349                 goto parse_error;
 350
 351         /* all good return success */
 352         return ret;
 353
 354 parse_error:
 355         rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 356                            "Failed to validate flow.");
 357         return -EINVAL;
 358 }
 359
 360 /* Function to destroy the rte flow. */
 361 int
 362 bnxt_ulp_flow_destroy(struct rte_eth_dev *dev,
 363                       struct rte_flow *flow,
 364                       struct rte_flow_error *error)
 365 {
 366         struct bnxt_ulp_context *ulp_ctx;
 367         uint32_t flow_id;
 368         uint16_t func_id;
 369         int ret;
 370
 371         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 372         if (!ulp_ctx) {
 373                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 374                 if (error)
 375                         rte_flow_error_set(error, EINVAL,
 376                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 377                                            "Failed to destroy flow.");
 378                 return -EINVAL;
 379         }
 380
 381         flow_id = (uint32_t)(uintptr_t)flow;
 382
 383         if (ulp_port_db_port_func_id_get(ulp_ctx,
 384                                          dev->data->port_id,
 385                                          &func_id)) {
 386                 BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
 387                 if (error)
 388                         rte_flow_error_set(error, EINVAL,
 389                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 390                                            "Failed to destroy flow.");
 391                 return -EINVAL;
 392         }
 393
 394         if (ulp_flow_db_validate_flow_func(ulp_ctx, flow_id, func_id) ==
 395             false) {
 396                 BNXT_TF_DBG(ERR, "Incorrect device params\n");
 397                 if (error)
 398                         rte_flow_error_set(error, EINVAL,
 399                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 400                                            "Failed to destroy flow.");
 401                 return -EINVAL;
 402         }
 403
 404         if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
 405                 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
 406                 return -EINVAL;
 407         }
 408         ret = ulp_mapper_flow_destroy(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
 409                                       flow_id);
 410         if (ret) {
 411                 BNXT_TF_DBG(ERR, "Failed to destroy flow.\n");
 412                 if (error)
 413                         rte_flow_error_set(error, -ret,
 414                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 415                                            "Failed to destroy flow.");
 416         }
 417         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 418
 419         return ret;
 420 }
 421
 422 /* Function to destroy the rte flows. */
 423 static int32_t
 424 bnxt_ulp_flow_flush(struct rte_eth_dev *eth_dev,
 425                     struct rte_flow_error *error)
 426 {
 427         struct bnxt_ulp_context *ulp_ctx;
 428         int32_t ret = 0;
 429         uint16_t func_id;
 430
 431         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 432         if (!ulp_ctx) {
 433                 return ret;
 434         }
 435
 436         /* Free the resources for the last device */
 437         if (ulp_ctx_deinit_allowed(ulp_ctx)) {
 438                 ret = ulp_flow_db_session_flow_flush(ulp_ctx);
 439         } else if (bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx)) {
 440                 ret = ulp_port_db_port_func_id_get(ulp_ctx,
 441                                                    eth_dev->data->port_id,
 442                                                    &func_id);
 443                 if (!ret)
 444                         ret = ulp_flow_db_function_flow_flush(ulp_ctx, func_id);
 445                 else
 446                         BNXT_TF_DBG(ERR, "convert port to func id failed\n");
 447         }
 448         if (ret)
 449                 rte_flow_error_set(error, ret,
 450                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 451                                    "Failed to flush flow.");
 452         return ret;
 453 }
 454
 455 /* Function to query the rte flows. */
 456 static int32_t
 457 bnxt_ulp_flow_query(struct rte_eth_dev *eth_dev,
 458                     struct rte_flow *flow,
 459                     const struct rte_flow_action *action,
 460                     void *data,
 461                     struct rte_flow_error *error)
 462 {
 463         int rc = 0;
 464         struct bnxt_ulp_context *ulp_ctx;
 465         struct rte_flow_query_count *count;
 466         uint32_t flow_id;
 467
 468         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 469         if (!ulp_ctx) {
 470                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 471                 rte_flow_error_set(error, EINVAL,
 472                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 473                                    "Failed to query flow.");
 474                 return -EINVAL;
 475         }
 476
 477         flow_id = (uint32_t)(uintptr_t)flow;
 478
 479         switch (action->type) {
 480         case RTE_FLOW_ACTION_TYPE_COUNT:
 481                 count = data;
 482                 rc = ulp_fc_mgr_query_count_get(ulp_ctx, flow_id, count);
 483                 if (rc) {
 484                         rte_flow_error_set(error, EINVAL,
 485                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 486                                            "Failed to query flow.");
 487                 }
 488                 break;
 489         default:
 490                 rte_flow_error_set(error, -rc, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 491                                    NULL, "Unsupported action item");
 492         }
 493
 494         return rc;
 495 }
 496
 497 /* Tunnel offload Apis */
 498 #define BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS       1
 499
 500 static int
 501 bnxt_ulp_tunnel_decap_set(struct rte_eth_dev *eth_dev,
 502                           struct rte_flow_tunnel *tunnel,
 503                           struct rte_flow_action **pmd_actions,
 504                           uint32_t *num_of_actions,
 505                           struct rte_flow_error *error)
 506 {
 507         struct bnxt_ulp_context *ulp_ctx;
 508         struct bnxt_flow_app_tun_ent *tun_entry;
 509         int32_t rc = 0;
 510
 511         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 512         if (ulp_ctx == NULL) {
 513                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 514                 rte_flow_error_set(error, EINVAL,
 515                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 516                                    "ULP context uninitialized");
 517                 return -EINVAL;
 518         }
 519
 520         if (tunnel == NULL) {
 521                 BNXT_TF_DBG(ERR, "No tunnel specified\n");
 522                 rte_flow_error_set(error, EINVAL,
 523                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 524                                    "no tunnel specified");
 525                 return -EINVAL;
 526         }
 527
 528         if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
 529                 BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
 530                 rte_flow_error_set(error, EINVAL,
 531                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 532                                    "tunnel type unsupported");
 533                 return -EINVAL;
 534         }
 535
 536         rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
 537         if (rc < 0) {
 538                 rte_flow_error_set(error, EINVAL,
 539                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 540                                    "tunnel decap set failed");
 541                 return -EINVAL;
 542         }
 543
 544         rc = ulp_app_tun_entry_set_decap_action(tun_entry);
 545         if (rc < 0) {
 546                 rte_flow_error_set(error, EINVAL,
 547                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 548                                    "tunnel decap set failed");
 549                 return -EINVAL;
 550         }
 551
 552         *pmd_actions = &tun_entry->action;
 553         *num_of_actions = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
 554         return 0;
 555 }
 556
 557 static int
 558 bnxt_ulp_tunnel_match(struct rte_eth_dev *eth_dev,
 559                       struct rte_flow_tunnel *tunnel,
 560                       struct rte_flow_item **pmd_items,
 561                       uint32_t *num_of_items,
 562                       struct rte_flow_error *error)
 563 {
 564         struct bnxt_ulp_context *ulp_ctx;
 565         struct bnxt_flow_app_tun_ent *tun_entry;
 566         int32_t rc = 0;
 567
 568         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 569         if (ulp_ctx == NULL) {
 570                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 571                 rte_flow_error_set(error, EINVAL,
 572                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 573                                    "ULP context uninitialized");
 574                 return -EINVAL;
 575         }
 576
 577         if (tunnel == NULL) {
 578                 BNXT_TF_DBG(ERR, "No tunnel specified\n");
 579                 rte_flow_error_set(error, EINVAL,
 580                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 581                                    "no tunnel specified");
 582                 return -EINVAL;
 583         }
 584
 585         if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
 586                 BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
 587                 rte_flow_error_set(error, EINVAL,
 588                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 589                                    "tunnel type unsupported");
 590                 return -EINVAL;
 591         }
 592
 593         rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
 594         if (rc < 0) {
 595                 rte_flow_error_set(error, EINVAL,
 596                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 597                                    "tunnel match set failed");
 598                 return -EINVAL;
 599         }
 600
 601         rc = ulp_app_tun_entry_set_decap_item(tun_entry);
 602         if (rc < 0) {
 603                 rte_flow_error_set(error, EINVAL,
 604                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 605                                    "tunnel match set failed");
 606                 return -EINVAL;
 607         }
 608
 609         *pmd_items = &tun_entry->item;
 610         *num_of_items = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
 611         return 0;
 612 }
 613
 614 static int
 615 bnxt_ulp_tunnel_decap_release(struct rte_eth_dev *eth_dev,
 616                               struct rte_flow_action *pmd_actions,
 617                               uint32_t num_actions,
 618                               struct rte_flow_error *error)
 619 {
 620         struct bnxt_ulp_context *ulp_ctx;
 621         struct bnxt_flow_app_tun_ent *tun_entry;
 622         const struct rte_flow_action *action_item = pmd_actions;
 623
 624         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 625         if (ulp_ctx == NULL) {
 626                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 627                 rte_flow_error_set(error, EINVAL,
 628                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 629                                    "ULP context uninitialized");
 630                 return -EINVAL;
 631         }
 632         if (num_actions != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
 633                 BNXT_TF_DBG(ERR, "num actions is invalid\n");
 634                 rte_flow_error_set(error, EINVAL,
 635                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 636                                    "num actions is invalid");
 637                 return -EINVAL;
 638         }
 639         while (action_item && action_item->type != RTE_FLOW_ACTION_TYPE_END) {
 640                 if (action_item->type == (typeof(tun_entry->action.type))
 641                     BNXT_RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
 642                         tun_entry = ulp_app_tun_match_entry(ulp_ctx,
 643                                                             action_item->conf);
 644                         ulp_app_tun_entry_delete(tun_entry);
 645                 }
 646                 action_item++;
 647         }
 648         return 0;
 649 }
 650
 651 static int
 652 bnxt_ulp_tunnel_item_release(struct rte_eth_dev *eth_dev,
 653                              struct rte_flow_item *pmd_items,
 654                              uint32_t num_items,
 655                              struct rte_flow_error *error)
 656 {
 657         struct bnxt_ulp_context *ulp_ctx;
 658         struct bnxt_flow_app_tun_ent *tun_entry;
 659
 660         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 661         if (ulp_ctx == NULL) {
 662                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 663                 rte_flow_error_set(error, EINVAL,
 664                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 665                                    "ULP context uninitialized");
 666                 return -EINVAL;
 667         }
 668         if (num_items != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
 669                 BNXT_TF_DBG(ERR, "num items is invalid\n");
 670                 rte_flow_error_set(error, EINVAL,
 671                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 672                                    "num items is invalid");
 673                 return -EINVAL;
 674         }
 675
 676         tun_entry = ulp_app_tun_match_entry(ulp_ctx, pmd_items->spec);
 677         ulp_app_tun_entry_delete(tun_entry);
 678         return 0;
 679 }
 680
 681 const struct rte_flow_ops bnxt_ulp_rte_flow_ops = {
 682         .validate = bnxt_ulp_flow_validate,
 683         .create = bnxt_ulp_flow_create,
 684         .destroy = bnxt_ulp_flow_destroy,
 685         .flush = bnxt_ulp_flow_flush,
 686         .query = bnxt_ulp_flow_query,
 687         .isolate = NULL,
 688         /* Tunnel offload callbacks */
 689         .tunnel_decap_set = bnxt_ulp_tunnel_decap_set,
 690         .tunnel_match = bnxt_ulp_tunnel_match,
 691         .tunnel_action_decap_release = bnxt_ulp_tunnel_decap_release,
 692         .tunnel_item_release = bnxt_ulp_tunnel_item_release,
 693         .get_restore_info = NULL
 694 };