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_SOCKET_DIRECT_IS_ENABLED(ulp_flags))
 137                 ULP_COMP_FLD_IDX_WR(params, BNXT_ULP_CF_IDX_SOCKET_DIRECT, 1);
 138 }
 139
 140 /* Function to create the rte flow. */
 141 static struct rte_flow *
 142 bnxt_ulp_flow_create(struct rte_eth_dev *dev,
 143                      const struct rte_flow_attr *attr,
 144                      const struct rte_flow_item pattern[],
 145                      const struct rte_flow_action actions[],
 146                      struct rte_flow_error *error)
 147 {
 148         struct bnxt_ulp_mapper_create_parms mapper_cparms = { 0 };
 149         struct ulp_rte_parser_params params;
 150         struct bnxt_ulp_context *ulp_ctx;
 151         int rc, ret = BNXT_TF_RC_ERROR;
 152         struct rte_flow *flow_id;
 153         uint16_t func_id;
 154         uint32_t fid;
 155
 156         if (bnxt_ulp_flow_validate_args(attr,
 157                                         pattern, actions,
 158                                         error) == BNXT_TF_RC_ERROR) {
 159                 BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
 160                 goto flow_error;
 161         }
 162
 163         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 164         if (!ulp_ctx) {
 165                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 166                 goto flow_error;
 167         }
 168
 169         /* Initialize the parser params */
 170         memset(&params, 0, sizeof(struct ulp_rte_parser_params));
 171         params.ulp_ctx = ulp_ctx;
 172
 173         if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
 174                 BNXT_TF_DBG(ERR, "failed to get the app id\n");
 175                 goto flow_error;
 176         }
 177
 178         /* Set the flow attributes */
 179         bnxt_ulp_set_dir_attributes(&params, attr);
 180
 181         /* copy the device port id and direction for further processing */
 182         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_INCOMING_IF,
 183                             dev->data->port_id);
 184         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_DEV_PORT_ID,
 185                             dev->data->port_id);
 186         ULP_COMP_FLD_IDX_WR(&params, BNXT_ULP_CF_IDX_SVIF_FLAG,
 187                             BNXT_ULP_INVALID_SVIF_VAL);
 188
 189         /* Get the function id */
 190         if (ulp_port_db_port_func_id_get(ulp_ctx,
 191                                          dev->data->port_id,
 192                                          &func_id)) {
 193                 BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
 194                 goto flow_error;
 195         }
 196
 197         /* Protect flow creation */
 198         if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
 199                 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
 200                 goto flow_error;
 201         }
 202
 203         /* Allocate a Flow ID for attaching all resources for the flow to.
 204          * Once allocated, all errors have to walk the list of resources and
 205          * free each of them.
 206          */
 207         rc = ulp_flow_db_fid_alloc(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
 208                                    func_id, &fid);
 209         if (rc) {
 210                 BNXT_TF_DBG(ERR, "Unable to allocate flow table entry\n");
 211                 goto release_lock;
 212         }
 213
 214         /* Parse the rte flow pattern */
 215         ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
 216         if (ret != BNXT_TF_RC_SUCCESS)
 217                 goto free_fid;
 218
 219         /* Parse the rte flow action */
 220         ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
 221         if (ret != BNXT_TF_RC_SUCCESS)
 222                 goto free_fid;
 223
 224         params.fid = fid;
 225         params.func_id = func_id;
 226         params.priority = attr->priority;
 227         params.port_id = dev->data->port_id;
 228
 229         /* Perform the rte flow post process */
 230         bnxt_ulp_rte_parser_post_process(&params);
 231
 232         /* do the tunnel offload process if any */
 233         ret = ulp_tunnel_offload_process(&params);
 234         if (ret == BNXT_TF_RC_ERROR)
 235                 goto free_fid;
 236
 237         ret = ulp_matcher_pattern_match(&params, &params.class_id);
 238         if (ret != BNXT_TF_RC_SUCCESS)
 239                 goto free_fid;
 240
 241         ret = ulp_matcher_action_match(&params, &params.act_tmpl);
 242         if (ret != BNXT_TF_RC_SUCCESS)
 243                 goto free_fid;
 244
 245         bnxt_ulp_init_mapper_params(&mapper_cparms, &params,
 246                                     BNXT_ULP_FDB_TYPE_REGULAR);
 247         /* Call the ulp mapper to create the flow in the hardware. */
 248         ret = ulp_mapper_flow_create(ulp_ctx, &mapper_cparms);
 249         if (ret)
 250                 goto free_fid;
 251
 252         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 253
 254         flow_id = (struct rte_flow *)((uintptr_t)fid);
 255         return flow_id;
 256
 257 free_fid:
 258         ulp_flow_db_fid_free(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR, fid);
 259 release_lock:
 260         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 261 flow_error:
 262         rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 263                            "Failed to create flow.");
 264         return NULL;
 265 }
 266
 267 /* Function to validate the rte flow. */
 268 static int
 269 bnxt_ulp_flow_validate(struct rte_eth_dev *dev,
 270                        const struct rte_flow_attr *attr,
 271                        const struct rte_flow_item pattern[],
 272                        const struct rte_flow_action actions[],
 273                        struct rte_flow_error *error)
 274 {
 275         struct ulp_rte_parser_params params;
 276         struct bnxt_ulp_context *ulp_ctx;
 277         uint32_t class_id, act_tmpl;
 278         int ret = BNXT_TF_RC_ERROR;
 279
 280         if (bnxt_ulp_flow_validate_args(attr,
 281                                         pattern, actions,
 282                                         error) == BNXT_TF_RC_ERROR) {
 283                 BNXT_TF_DBG(ERR, "Invalid arguments being passed\n");
 284                 goto parse_error;
 285         }
 286
 287         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 288         if (!ulp_ctx) {
 289                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 290                 goto parse_error;
 291         }
 292
 293         /* Initialize the parser params */
 294         memset(&params, 0, sizeof(struct ulp_rte_parser_params));
 295         params.ulp_ctx = ulp_ctx;
 296
 297         if (bnxt_ulp_cntxt_app_id_get(params.ulp_ctx, &params.app_id)) {
 298                 BNXT_TF_DBG(ERR, "failed to get the app id\n");
 299                 goto parse_error;
 300         }
 301
 302         /* Set the flow attributes */
 303         bnxt_ulp_set_dir_attributes(&params, attr);
 304
 305         /* Parse the rte flow pattern */
 306         ret = bnxt_ulp_rte_parser_hdr_parse(pattern, &params);
 307         if (ret != BNXT_TF_RC_SUCCESS)
 308                 goto parse_error;
 309
 310         /* Parse the rte flow action */
 311         ret = bnxt_ulp_rte_parser_act_parse(actions, &params);
 312         if (ret != BNXT_TF_RC_SUCCESS)
 313                 goto parse_error;
 314
 315         /* Perform the rte flow post process */
 316         bnxt_ulp_rte_parser_post_process(&params);
 317
 318         /* do the tunnel offload process if any */
 319         ret = ulp_tunnel_offload_process(&params);
 320         if (ret == BNXT_TF_RC_ERROR)
 321                 goto parse_error;
 322
 323         ret = ulp_matcher_pattern_match(&params, &class_id);
 324
 325         if (ret != BNXT_TF_RC_SUCCESS)
 326                 goto parse_error;
 327
 328         ret = ulp_matcher_action_match(&params, &act_tmpl);
 329         if (ret != BNXT_TF_RC_SUCCESS)
 330                 goto parse_error;
 331
 332         /* all good return success */
 333         return ret;
 334
 335 parse_error:
 336         rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 337                            "Failed to validate flow.");
 338         return -EINVAL;
 339 }
 340
 341 /* Function to destroy the rte flow. */
 342 int
 343 bnxt_ulp_flow_destroy(struct rte_eth_dev *dev,
 344                       struct rte_flow *flow,
 345                       struct rte_flow_error *error)
 346 {
 347         struct bnxt_ulp_context *ulp_ctx;
 348         uint32_t flow_id;
 349         uint16_t func_id;
 350         int ret;
 351
 352         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(dev);
 353         if (!ulp_ctx) {
 354                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 355                 if (error)
 356                         rte_flow_error_set(error, EINVAL,
 357                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 358                                            "Failed to destroy flow.");
 359                 return -EINVAL;
 360         }
 361
 362         flow_id = (uint32_t)(uintptr_t)flow;
 363
 364         if (ulp_port_db_port_func_id_get(ulp_ctx,
 365                                          dev->data->port_id,
 366                                          &func_id)) {
 367                 BNXT_TF_DBG(ERR, "conversion of port to func id failed\n");
 368                 if (error)
 369                         rte_flow_error_set(error, EINVAL,
 370                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 371                                            "Failed to destroy flow.");
 372                 return -EINVAL;
 373         }
 374
 375         if (ulp_flow_db_validate_flow_func(ulp_ctx, flow_id, func_id) ==
 376             false) {
 377                 BNXT_TF_DBG(ERR, "Incorrect device params\n");
 378                 if (error)
 379                         rte_flow_error_set(error, EINVAL,
 380                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 381                                            "Failed to destroy flow.");
 382                 return -EINVAL;
 383         }
 384
 385         if (bnxt_ulp_cntxt_acquire_fdb_lock(ulp_ctx)) {
 386                 BNXT_TF_DBG(ERR, "Flow db lock acquire failed\n");
 387                 return -EINVAL;
 388         }
 389         ret = ulp_mapper_flow_destroy(ulp_ctx, BNXT_ULP_FDB_TYPE_REGULAR,
 390                                       flow_id);
 391         if (ret) {
 392                 BNXT_TF_DBG(ERR, "Failed to destroy flow.\n");
 393                 if (error)
 394                         rte_flow_error_set(error, -ret,
 395                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 396                                            "Failed to destroy flow.");
 397         }
 398         bnxt_ulp_cntxt_release_fdb_lock(ulp_ctx);
 399
 400         return ret;
 401 }
 402
 403 /* Function to destroy the rte flows. */
 404 static int32_t
 405 bnxt_ulp_flow_flush(struct rte_eth_dev *eth_dev,
 406                     struct rte_flow_error *error)
 407 {
 408         struct bnxt_ulp_context *ulp_ctx;
 409         int32_t ret = 0;
 410         uint16_t func_id;
 411
 412         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 413         if (!ulp_ctx) {
 414                 return ret;
 415         }
 416
 417         /* Free the resources for the last device */
 418         if (ulp_ctx_deinit_allowed(ulp_ctx)) {
 419                 ret = ulp_flow_db_session_flow_flush(ulp_ctx);
 420         } else if (bnxt_ulp_cntxt_ptr2_flow_db_get(ulp_ctx)) {
 421                 ret = ulp_port_db_port_func_id_get(ulp_ctx,
 422                                                    eth_dev->data->port_id,
 423                                                    &func_id);
 424                 if (!ret)
 425                         ret = ulp_flow_db_function_flow_flush(ulp_ctx, func_id);
 426                 else
 427                         BNXT_TF_DBG(ERR, "convert port to func id failed\n");
 428         }
 429         if (ret)
 430                 rte_flow_error_set(error, ret,
 431                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 432                                    "Failed to flush flow.");
 433         return ret;
 434 }
 435
 436 /* Function to query the rte flows. */
 437 static int32_t
 438 bnxt_ulp_flow_query(struct rte_eth_dev *eth_dev,
 439                     struct rte_flow *flow,
 440                     const struct rte_flow_action *action,
 441                     void *data,
 442                     struct rte_flow_error *error)
 443 {
 444         int rc = 0;
 445         struct bnxt_ulp_context *ulp_ctx;
 446         struct rte_flow_query_count *count;
 447         uint32_t flow_id;
 448
 449         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 450         if (!ulp_ctx) {
 451                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 452                 rte_flow_error_set(error, EINVAL,
 453                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 454                                    "Failed to query flow.");
 455                 return -EINVAL;
 456         }
 457
 458         flow_id = (uint32_t)(uintptr_t)flow;
 459
 460         switch (action->type) {
 461         case RTE_FLOW_ACTION_TYPE_COUNT:
 462                 count = data;
 463                 rc = ulp_fc_mgr_query_count_get(ulp_ctx, flow_id, count);
 464                 if (rc) {
 465                         rte_flow_error_set(error, EINVAL,
 466                                            RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 467                                            "Failed to query flow.");
 468                 }
 469                 break;
 470         default:
 471                 rte_flow_error_set(error, -rc, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 472                                    NULL, "Unsupported action item");
 473         }
 474
 475         return rc;
 476 }
 477
 478 /* Tunnel offload Apis */
 479 #define BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS       1
 480
 481 static int
 482 bnxt_ulp_tunnel_decap_set(struct rte_eth_dev *eth_dev,
 483                           struct rte_flow_tunnel *tunnel,
 484                           struct rte_flow_action **pmd_actions,
 485                           uint32_t *num_of_actions,
 486                           struct rte_flow_error *error)
 487 {
 488         struct bnxt_ulp_context *ulp_ctx;
 489         struct bnxt_flow_app_tun_ent *tun_entry;
 490         int32_t rc = 0;
 491
 492         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 493         if (ulp_ctx == NULL) {
 494                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 495                 rte_flow_error_set(error, EINVAL,
 496                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 497                                    "ULP context uninitialized");
 498                 return -EINVAL;
 499         }
 500
 501         if (tunnel == NULL) {
 502                 BNXT_TF_DBG(ERR, "No tunnel specified\n");
 503                 rte_flow_error_set(error, EINVAL,
 504                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 505                                    "no tunnel specified");
 506                 return -EINVAL;
 507         }
 508
 509         if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
 510                 BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
 511                 rte_flow_error_set(error, EINVAL,
 512                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 513                                    "tunnel type unsupported");
 514                 return -EINVAL;
 515         }
 516
 517         rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
 518         if (rc < 0) {
 519                 rte_flow_error_set(error, EINVAL,
 520                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 521                                    "tunnel decap set failed");
 522                 return -EINVAL;
 523         }
 524
 525         rc = ulp_app_tun_entry_set_decap_action(tun_entry);
 526         if (rc < 0) {
 527                 rte_flow_error_set(error, EINVAL,
 528                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 529                                    "tunnel decap set failed");
 530                 return -EINVAL;
 531         }
 532
 533         *pmd_actions = &tun_entry->action;
 534         *num_of_actions = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
 535         return 0;
 536 }
 537
 538 static int
 539 bnxt_ulp_tunnel_match(struct rte_eth_dev *eth_dev,
 540                       struct rte_flow_tunnel *tunnel,
 541                       struct rte_flow_item **pmd_items,
 542                       uint32_t *num_of_items,
 543                       struct rte_flow_error *error)
 544 {
 545         struct bnxt_ulp_context *ulp_ctx;
 546         struct bnxt_flow_app_tun_ent *tun_entry;
 547         int32_t rc = 0;
 548
 549         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 550         if (ulp_ctx == NULL) {
 551                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 552                 rte_flow_error_set(error, EINVAL,
 553                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 554                                    "ULP context uninitialized");
 555                 return -EINVAL;
 556         }
 557
 558         if (tunnel == NULL) {
 559                 BNXT_TF_DBG(ERR, "No tunnel specified\n");
 560                 rte_flow_error_set(error, EINVAL,
 561                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 562                                    "no tunnel specified");
 563                 return -EINVAL;
 564         }
 565
 566         if (tunnel->type != RTE_FLOW_ITEM_TYPE_VXLAN) {
 567                 BNXT_TF_DBG(ERR, "Tunnel type unsupported\n");
 568                 rte_flow_error_set(error, EINVAL,
 569                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 570                                    "tunnel type unsupported");
 571                 return -EINVAL;
 572         }
 573
 574         rc = ulp_app_tun_search_entry(ulp_ctx, tunnel, &tun_entry);
 575         if (rc < 0) {
 576                 rte_flow_error_set(error, EINVAL,
 577                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 578                                    "tunnel match set failed");
 579                 return -EINVAL;
 580         }
 581
 582         rc = ulp_app_tun_entry_set_decap_item(tun_entry);
 583         if (rc < 0) {
 584                 rte_flow_error_set(error, EINVAL,
 585                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 586                                    "tunnel match set failed");
 587                 return -EINVAL;
 588         }
 589
 590         *pmd_items = &tun_entry->item;
 591         *num_of_items = BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS;
 592         return 0;
 593 }
 594
 595 static int
 596 bnxt_ulp_tunnel_decap_release(struct rte_eth_dev *eth_dev,
 597                               struct rte_flow_action *pmd_actions,
 598                               uint32_t num_actions,
 599                               struct rte_flow_error *error)
 600 {
 601         struct bnxt_ulp_context *ulp_ctx;
 602         struct bnxt_flow_app_tun_ent *tun_entry;
 603         const struct rte_flow_action *action_item = pmd_actions;
 604
 605         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 606         if (ulp_ctx == NULL) {
 607                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 608                 rte_flow_error_set(error, EINVAL,
 609                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 610                                    "ULP context uninitialized");
 611                 return -EINVAL;
 612         }
 613         if (num_actions != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
 614                 BNXT_TF_DBG(ERR, "num actions is invalid\n");
 615                 rte_flow_error_set(error, EINVAL,
 616                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 617                                    "num actions is invalid");
 618                 return -EINVAL;
 619         }
 620         while (action_item && action_item->type != RTE_FLOW_ACTION_TYPE_END) {
 621                 if (action_item->type == (typeof(tun_entry->action.type))
 622                     BNXT_RTE_FLOW_ACTION_TYPE_VXLAN_DECAP) {
 623                         tun_entry = ulp_app_tun_match_entry(ulp_ctx,
 624                                                             action_item->conf);
 625                         ulp_app_tun_entry_delete(tun_entry);
 626                 }
 627                 action_item++;
 628         }
 629         return 0;
 630 }
 631
 632 static int
 633 bnxt_ulp_tunnel_item_release(struct rte_eth_dev *eth_dev,
 634                              struct rte_flow_item *pmd_items,
 635                              uint32_t num_items,
 636                              struct rte_flow_error *error)
 637 {
 638         struct bnxt_ulp_context *ulp_ctx;
 639         struct bnxt_flow_app_tun_ent *tun_entry;
 640
 641         ulp_ctx = bnxt_ulp_eth_dev_ptr2_cntxt_get(eth_dev);
 642         if (ulp_ctx == NULL) {
 643                 BNXT_TF_DBG(ERR, "ULP context is not initialized\n");
 644                 rte_flow_error_set(error, EINVAL,
 645                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 646                                    "ULP context uninitialized");
 647                 return -EINVAL;
 648         }
 649         if (num_items != BNXT_ULP_TUNNEL_OFFLOAD_NUM_ITEMS) {
 650                 BNXT_TF_DBG(ERR, "num items is invalid\n");
 651                 rte_flow_error_set(error, EINVAL,
 652                                    RTE_FLOW_ERROR_TYPE_ATTR, NULL,
 653                                    "num items is invalid");
 654                 return -EINVAL;
 655         }
 656
 657         tun_entry = ulp_app_tun_match_entry(ulp_ctx, pmd_items->spec);
 658         ulp_app_tun_entry_delete(tun_entry);
 659         return 0;
 660 }
 661
 662 const struct rte_flow_ops bnxt_ulp_rte_flow_ops = {
 663         .validate = bnxt_ulp_flow_validate,
 664         .create = bnxt_ulp_flow_create,
 665         .destroy = bnxt_ulp_flow_destroy,
 666         .flush = bnxt_ulp_flow_flush,
 667         .query = bnxt_ulp_flow_query,
 668         .isolate = NULL,
 669         /* Tunnel offload callbacks */
 670         .tunnel_decap_set = bnxt_ulp_tunnel_decap_set,
 671         .tunnel_match = bnxt_ulp_tunnel_match,
 672         .tunnel_action_decap_release = bnxt_ulp_tunnel_decap_release,
 673         .tunnel_item_release = bnxt_ulp_tunnel_item_release,
 674         .get_restore_info = NULL
 675 };