drivers/common/cnxk/roc_npc.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4
   5 #include "roc_api.h"
   6 #include "roc_priv.h"
   7
   8 int
   9 roc_npc_vtag_actions_get(struct roc_npc *roc_npc)
  10 {
  11         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  12
  13         return npc->vtag_strip_actions;
  14 }
  15
  16 int
  17 roc_npc_vtag_actions_sub_return(struct roc_npc *roc_npc, uint32_t count)
  18 {
  19         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  20
  21         npc->vtag_strip_actions -= count;
  22         return npc->vtag_strip_actions;
  23 }
  24
  25 int
  26 roc_npc_mcam_free_counter(struct roc_npc *roc_npc, uint16_t ctr_id)
  27 {
  28         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  29
  30         return npc_mcam_free_counter(npc, ctr_id);
  31 }
  32
  33 int
  34 roc_npc_mcam_read_counter(struct roc_npc *roc_npc, uint32_t ctr_id,
  35                           uint64_t *count)
  36 {
  37         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  38
  39         return npc_mcam_read_counter(npc, ctr_id, count);
  40 }
  41
  42 int
  43 roc_npc_mcam_clear_counter(struct roc_npc *roc_npc, uint32_t ctr_id)
  44 {
  45         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  46
  47         return npc_mcam_clear_counter(npc, ctr_id);
  48 }
  49
  50 int
  51 roc_npc_mcam_free_entry(struct roc_npc *roc_npc, uint32_t entry)
  52 {
  53         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  54
  55         return npc_mcam_free_entry(npc, entry);
  56 }
  57
  58 int
  59 roc_npc_mcam_free_all_resources(struct roc_npc *roc_npc)
  60 {
  61         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  62
  63         return npc_flow_free_all_resources(npc);
  64 }
  65
  66 int
  67 roc_npc_mcam_alloc_entries(struct roc_npc *roc_npc, int ref_entry,
  68                            int *alloc_entry, int req_count, int priority,
  69                            int *resp_count)
  70 {
  71         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  72
  73         return npc_mcam_alloc_entries(npc, ref_entry, alloc_entry, req_count,
  74                                       priority, resp_count);
  75 }
  76
  77 int
  78 roc_npc_mcam_alloc_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
  79                          struct roc_npc_flow *ref_mcam, int prio,
  80                          int *resp_count)
  81 {
  82         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  83
  84         return npc_mcam_alloc_entry(npc, mcam, ref_mcam, prio, resp_count);
  85 }
  86
  87 int
  88 roc_npc_mcam_ena_dis_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
  89                            bool enable)
  90 {
  91         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  92
  93         return npc_mcam_ena_dis_entry(npc, mcam, enable);
  94 }
  95
  96 int
  97 roc_npc_mcam_write_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam)
  98 {
  99         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 100
 101         return npc_mcam_write_entry(npc, mcam);
 102 }
 103
 104 int
 105 roc_npc_get_low_priority_mcam(struct roc_npc *roc_npc)
 106 {
 107         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 108
 109         if (roc_model_is_cn10k())
 110                 return (npc->mcam_entries - NPC_MCAME_RESVD_10XX - 1);
 111         else if (roc_model_is_cn98xx())
 112                 return (npc->mcam_entries - NPC_MCAME_RESVD_98XX - 1);
 113         else
 114                 return (npc->mcam_entries - NPC_MCAME_RESVD_9XXX - 1);
 115 }
 116
 117 static int
 118 npc_mcam_tot_entries(void)
 119 {
 120         /* FIXME: change to reading in AF from NPC_AF_CONST1/2
 121          * MCAM_BANK_DEPTH(_EXT) * MCAM_BANKS
 122          */
 123         if (roc_model_is_cn10k() || roc_model_is_cn98xx())
 124                 return 16 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 4096 */
 125         else
 126                 return 4 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 1024 */
 127 }
 128
 129 const char *
 130 roc_npc_profile_name_get(struct roc_npc *roc_npc)
 131 {
 132         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 133
 134         return (char *)npc->profile_name;
 135 }
 136
 137 int
 138 roc_npc_init(struct roc_npc *roc_npc)
 139 {
 140         uint8_t *mem = NULL, *nix_mem = NULL, *npc_mem = NULL;
 141         struct nix *nix = roc_nix_to_nix_priv(roc_npc->roc_nix);
 142         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 143         uint32_t bmap_sz;
 144         int rc = 0, idx;
 145         size_t sz;
 146
 147         PLT_STATIC_ASSERT(sizeof(struct npc) <= ROC_NPC_MEM_SZ);
 148
 149         memset(npc, 0, sizeof(*npc));
 150         npc->mbox = (&nix->dev)->mbox;
 151         roc_npc->channel = nix->rx_chan_base;
 152         roc_npc->pf_func = (&nix->dev)->pf_func;
 153         npc->channel = roc_npc->channel;
 154         npc->pf_func = roc_npc->pf_func;
 155         npc->flow_max_priority = roc_npc->flow_max_priority;
 156         npc->switch_header_type = roc_npc->switch_header_type;
 157         npc->flow_prealloc_size = roc_npc->flow_prealloc_size;
 158
 159         if (npc->mbox == NULL)
 160                 return NPC_ERR_PARAM;
 161
 162         rc = npc_mcam_fetch_kex_cfg(npc);
 163         if (rc)
 164                 goto done;
 165
 166         roc_npc->kex_capability = npc_get_kex_capability(npc);
 167         roc_npc->rx_parse_nibble = npc->keyx_supp_nmask[NPC_MCAM_RX];
 168
 169         npc->mark_actions = 0;
 170
 171         npc->mcam_entries = npc_mcam_tot_entries() >> npc->keyw[NPC_MCAM_RX];
 172
 173         /* Free, free_rev, live and live_rev entries */
 174         bmap_sz = plt_bitmap_get_memory_footprint(npc->mcam_entries);
 175         mem = plt_zmalloc(4 * bmap_sz * npc->flow_max_priority, 0);
 176         if (mem == NULL) {
 177                 plt_err("Bmap alloc failed");
 178                 rc = NPC_ERR_NO_MEM;
 179                 return rc;
 180         }
 181
 182         sz = npc->flow_max_priority * sizeof(struct npc_flow_list);
 183         npc->flow_list = plt_zmalloc(sz, 0);
 184         if (npc->flow_list == NULL) {
 185                 plt_err("flow_list alloc failed");
 186                 rc = NPC_ERR_NO_MEM;
 187                 goto done;
 188         }
 189
 190         sz = npc->flow_max_priority * sizeof(struct npc_prio_flow_list_head);
 191         npc->prio_flow_list = plt_zmalloc(sz, 0);
 192         if (npc->prio_flow_list == NULL) {
 193                 plt_err("prio_flow_list alloc failed");
 194                 rc = NPC_ERR_NO_MEM;
 195                 goto done;
 196         }
 197
 198         npc_mem = mem;
 199         for (idx = 0; idx < npc->flow_max_priority; idx++) {
 200                 TAILQ_INIT(&npc->flow_list[idx]);
 201                 TAILQ_INIT(&npc->prio_flow_list[idx]);
 202         }
 203
 204         npc->rss_grps = NPC_RSS_GRPS;
 205
 206         bmap_sz = plt_bitmap_get_memory_footprint(npc->rss_grps);
 207         nix_mem = plt_zmalloc(bmap_sz, 0);
 208         if (nix_mem == NULL) {
 209                 plt_err("Bmap alloc failed");
 210                 rc = NPC_ERR_NO_MEM;
 211                 goto done;
 212         }
 213
 214         npc->rss_grp_entries = plt_bitmap_init(npc->rss_grps, nix_mem, bmap_sz);
 215
 216         if (!npc->rss_grp_entries) {
 217                 plt_err("bitmap init failed");
 218                 rc = NPC_ERR_NO_MEM;
 219                 goto done;
 220         }
 221
 222         /* Group 0 will be used for RSS,
 223          * 1 -7 will be used for npc_flow RSS action
 224          */
 225         plt_bitmap_set(npc->rss_grp_entries, 0);
 226
 227         return rc;
 228
 229 done:
 230         if (npc->flow_list)
 231                 plt_free(npc->flow_list);
 232         if (npc->prio_flow_list)
 233                 plt_free(npc->prio_flow_list);
 234         if (npc_mem)
 235                 plt_free(npc_mem);
 236         return rc;
 237 }
 238
 239 int
 240 roc_npc_fini(struct roc_npc *roc_npc)
 241 {
 242         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 243         int rc;
 244
 245         rc = npc_flow_free_all_resources(npc);
 246         if (rc) {
 247                 plt_err("Error when deleting NPC MCAM entries, counters");
 248                 return rc;
 249         }
 250
 251         if (npc->flow_list) {
 252                 plt_free(npc->flow_list);
 253                 npc->flow_list = NULL;
 254         }
 255
 256         if (npc->prio_flow_list) {
 257                 plt_free(npc->prio_flow_list);
 258                 npc->prio_flow_list = NULL;
 259         }
 260
 261         return 0;
 262 }
 263
 264 static int
 265 npc_parse_actions(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 266                   const struct roc_npc_action actions[],
 267                   struct roc_npc_flow *flow)
 268 {
 269         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 270         const struct roc_npc_action_mark *act_mark;
 271         const struct roc_npc_action_meter *act_mtr;
 272         const struct roc_npc_action_queue *act_q;
 273         const struct roc_npc_action_vf *vf_act;
 274         bool vlan_insert_action = false;
 275         int sel_act, req_act = 0;
 276         uint16_t pf_func, vf_id;
 277         int errcode = 0;
 278         int mark = 0;
 279         int rq = 0;
 280
 281         /* Initialize actions */
 282         flow->ctr_id = NPC_COUNTER_NONE;
 283         pf_func = npc->pf_func;
 284
 285         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
 286                 switch (actions->type) {
 287                 case ROC_NPC_ACTION_TYPE_VOID:
 288                         break;
 289                 case ROC_NPC_ACTION_TYPE_MARK:
 290                         act_mark = (const struct roc_npc_action_mark *)
 291                                            actions->conf;
 292                         if (act_mark->id > (NPC_FLOW_FLAG_VAL - 2)) {
 293                                 plt_err("mark value must be < 0xfffe");
 294                                 goto err_exit;
 295                         }
 296                         mark = act_mark->id + 1;
 297                         req_act |= ROC_NPC_ACTION_TYPE_MARK;
 298                         npc->mark_actions += 1;
 299                         break;
 300
 301                 case ROC_NPC_ACTION_TYPE_FLAG:
 302                         mark = NPC_FLOW_FLAG_VAL;
 303                         req_act |= ROC_NPC_ACTION_TYPE_FLAG;
 304                         npc->mark_actions += 1;
 305                         break;
 306
 307                 case ROC_NPC_ACTION_TYPE_COUNT:
 308                         /* Indicates, need a counter */
 309                         flow->ctr_id = 1;
 310                         req_act |= ROC_NPC_ACTION_TYPE_COUNT;
 311                         break;
 312
 313                 case ROC_NPC_ACTION_TYPE_DROP:
 314                         req_act |= ROC_NPC_ACTION_TYPE_DROP;
 315                         break;
 316
 317                 case ROC_NPC_ACTION_TYPE_PF:
 318                         req_act |= ROC_NPC_ACTION_TYPE_PF;
 319                         pf_func &= (0xfc00);
 320                         break;
 321
 322                 case ROC_NPC_ACTION_TYPE_VF:
 323                         vf_act =
 324                                 (const struct roc_npc_action_vf *)actions->conf;
 325                         req_act |= ROC_NPC_ACTION_TYPE_VF;
 326                         vf_id = vf_act->id & RVU_PFVF_FUNC_MASK;
 327                         pf_func &= (0xfc00);
 328                         pf_func = (pf_func | (vf_id + 1));
 329                         break;
 330
 331                 case ROC_NPC_ACTION_TYPE_QUEUE:
 332                         act_q = (const struct roc_npc_action_queue *)
 333                                         actions->conf;
 334                         rq = act_q->index;
 335                         req_act |= ROC_NPC_ACTION_TYPE_QUEUE;
 336                         break;
 337
 338                 case ROC_NPC_ACTION_TYPE_RSS:
 339                         req_act |= ROC_NPC_ACTION_TYPE_RSS;
 340                         break;
 341
 342                 case ROC_NPC_ACTION_TYPE_SEC:
 343                         /* Assumes user has already configured security
 344                          * session for this flow. Associated conf is
 345                          * opaque. When security is implemented,
 346                          * we need to verify that for specified security
 347                          * session:
 348                          *  action_type ==
 349                          *    NPC_SECURITY_ACTION_TYPE_INLINE_PROTOCOL &&
 350                          *  session_protocol ==
 351                          *    NPC_SECURITY_PROTOCOL_IPSEC
 352                          */
 353                         req_act |= ROC_NPC_ACTION_TYPE_SEC;
 354                         rq = 0;
 355
 356                         /* Special processing when with inline device */
 357                         if (roc_nix_inb_is_with_inl_dev(roc_npc->roc_nix) &&
 358                             roc_nix_inl_dev_is_probed()) {
 359                                 rq = 0;
 360                                 pf_func = nix_inl_dev_pffunc_get();
 361                         }
 362                         break;
 363                 case ROC_NPC_ACTION_TYPE_VLAN_STRIP:
 364                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_STRIP;
 365                         break;
 366                 case ROC_NPC_ACTION_TYPE_VLAN_INSERT:
 367                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_INSERT;
 368                         break;
 369                 case ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT:
 370                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT;
 371                         break;
 372                 case ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT:
 373                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT;
 374                         break;
 375                 case ROC_NPC_ACTION_TYPE_METER:
 376                         act_mtr = (const struct roc_npc_action_meter *)
 377                                           actions->conf;
 378                         flow->mtr_id = act_mtr->mtr_id;
 379                         req_act |= ROC_NPC_ACTION_TYPE_METER;
 380                         break;
 381                 default:
 382                         errcode = NPC_ERR_ACTION_NOTSUP;
 383                         goto err_exit;
 384                 }
 385         }
 386
 387         if (req_act & (ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 388                        ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 389                        ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT))
 390                 vlan_insert_action = true;
 391
 392         if ((req_act & (ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 393                         ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 394                         ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT)) ==
 395             ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
 396                 plt_err("PCP insert action can't be supported alone");
 397                 errcode = NPC_ERR_ACTION_NOTSUP;
 398                 goto err_exit;
 399         }
 400
 401         /* Both STRIP and INSERT actions are not supported */
 402         if (vlan_insert_action && (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP)) {
 403                 errcode = NPC_ERR_ACTION_NOTSUP;
 404                 goto err_exit;
 405         }
 406
 407         /* Check if actions specified are compatible */
 408         if (attr->egress) {
 409                 if (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
 410                         plt_err("VLAN pop action is not supported on Egress");
 411                         errcode = NPC_ERR_ACTION_NOTSUP;
 412                         goto err_exit;
 413                 }
 414
 415                 if (req_act &
 416                     ~(ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 417                       ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 418                       ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT |
 419                       ROC_NPC_ACTION_TYPE_DROP | ROC_NPC_ACTION_TYPE_COUNT)) {
 420                         plt_err("Only VLAN insert, drop, count supported on Egress");
 421                         errcode = NPC_ERR_ACTION_NOTSUP;
 422                         goto err_exit;
 423                 }
 424
 425                 if (vlan_insert_action &&
 426                     (req_act & ROC_NPC_ACTION_TYPE_DROP)) {
 427                         plt_err("Both VLAN insert and drop actions cannot be supported");
 428                         errcode = NPC_ERR_ACTION_NOTSUP;
 429                         goto err_exit;
 430                 }
 431
 432                 if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 433                         flow->npc_action = NIX_TX_ACTIONOP_DROP;
 434                 } else if ((req_act & ROC_NPC_ACTION_TYPE_COUNT) ||
 435                            vlan_insert_action) {
 436                         flow->npc_action = NIX_TX_ACTIONOP_UCAST_DEFAULT;
 437                 } else {
 438                         plt_err("Unsupported action for egress");
 439                         errcode = NPC_ERR_ACTION_NOTSUP;
 440                         goto err_exit;
 441                 }
 442
 443                 goto set_pf_func;
 444         } else {
 445                 if (vlan_insert_action) {
 446                         errcode = NPC_ERR_ACTION_NOTSUP;
 447                         goto err_exit;
 448                 }
 449         }
 450
 451         /* We have already verified the attr, this is ingress.
 452          * - Exactly one terminating action is supported
 453          * - Exactly one of MARK or FLAG is supported
 454          * - If terminating action is DROP, only count is valid.
 455          */
 456         sel_act = req_act & NPC_ACTION_TERM;
 457         if ((sel_act & (sel_act - 1)) != 0) {
 458                 errcode = NPC_ERR_ACTION_NOTSUP;
 459                 goto err_exit;
 460         }
 461
 462         if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 463                 sel_act = req_act & ~ROC_NPC_ACTION_TYPE_COUNT;
 464                 if ((sel_act & (sel_act - 1)) != 0) {
 465                         errcode = NPC_ERR_ACTION_NOTSUP;
 466                         goto err_exit;
 467                 }
 468         }
 469
 470         if ((req_act & (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) ==
 471             (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
 472                 errcode = NPC_ERR_ACTION_NOTSUP;
 473                 goto err_exit;
 474         }
 475
 476         if (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP)
 477                 npc->vtag_strip_actions++;
 478
 479         /* Set NIX_RX_ACTIONOP */
 480         if (req_act == ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
 481                 /* Only VLAN action is provided */
 482                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 483         } else if (req_act &
 484                    (ROC_NPC_ACTION_TYPE_PF | ROC_NPC_ACTION_TYPE_VF)) {
 485                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 486                 if (req_act & ROC_NPC_ACTION_TYPE_QUEUE)
 487                         flow->npc_action |= (uint64_t)rq << 20;
 488         } else if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 489                 flow->npc_action = NIX_RX_ACTIONOP_DROP;
 490         } else if (req_act & ROC_NPC_ACTION_TYPE_QUEUE) {
 491                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 492                 flow->npc_action |= (uint64_t)rq << 20;
 493         } else if (req_act & ROC_NPC_ACTION_TYPE_RSS) {
 494                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 495         } else if (req_act & ROC_NPC_ACTION_TYPE_SEC) {
 496                 flow->npc_action = NIX_RX_ACTIONOP_UCAST_IPSEC;
 497                 flow->npc_action |= (uint64_t)rq << 20;
 498         } else if (req_act &
 499                    (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
 500                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 501         } else if (req_act & ROC_NPC_ACTION_TYPE_COUNT) {
 502                 /* Keep ROC_NPC_ACTION_TYPE_COUNT_ACT always at the end
 503                  * This is default action, when user specify only
 504                  * COUNT ACTION
 505                  */
 506                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 507         } else {
 508                 /* Should never reach here */
 509                 errcode = NPC_ERR_ACTION_NOTSUP;
 510                 goto err_exit;
 511         }
 512
 513         if (mark)
 514                 flow->npc_action |= (uint64_t)mark << 40;
 515
 516 set_pf_func:
 517         /* Ideally AF must ensure that correct pf_func is set */
 518         flow->npc_action |= (uint64_t)pf_func << 4;
 519
 520         return 0;
 521
 522 err_exit:
 523         return errcode;
 524 }
 525
 526 typedef int (*npc_parse_stage_func_t)(struct npc_parse_state *pst);
 527
 528 static int
 529 npc_parse_pattern(struct npc *npc, const struct roc_npc_item_info pattern[],
 530                   struct roc_npc_flow *flow, struct npc_parse_state *pst)
 531 {
 532         npc_parse_stage_func_t parse_stage_funcs[] = {
 533                 npc_parse_meta_items, npc_parse_cpt_hdr, npc_parse_higig2_hdr,
 534                 npc_parse_la,         npc_parse_lb,      npc_parse_lc,
 535                 npc_parse_ld,         npc_parse_le,      npc_parse_lf,
 536                 npc_parse_lg,         npc_parse_lh,
 537         };
 538         uint8_t layer = 0;
 539         int key_offset;
 540         int rc;
 541
 542         if (pattern == NULL)
 543                 return NPC_ERR_PARAM;
 544
 545         memset(pst, 0, sizeof(*pst));
 546         pst->npc = npc;
 547         pst->flow = flow;
 548
 549         /* Use integral byte offset */
 550         key_offset = pst->npc->keyx_len[flow->nix_intf];
 551         key_offset = (key_offset + 7) / 8;
 552
 553         /* Location where LDATA would begin */
 554         pst->mcam_data = (uint8_t *)flow->mcam_data;
 555         pst->mcam_mask = (uint8_t *)flow->mcam_mask;
 556
 557         while (pattern->type != ROC_NPC_ITEM_TYPE_END &&
 558                layer < PLT_DIM(parse_stage_funcs)) {
 559                 /* Skip place-holders */
 560                 pattern = npc_parse_skip_void_and_any_items(pattern);
 561
 562                 pst->pattern = pattern;
 563                 rc = parse_stage_funcs[layer](pst);
 564                 if (rc != 0)
 565                         return rc;
 566
 567                 layer++;
 568
 569                 /*
 570                  * Parse stage function sets pst->pattern to
 571                  * 1 past the last item it consumed.
 572                  */
 573                 pattern = pst->pattern;
 574
 575                 if (pst->terminate)
 576                         break;
 577         }
 578
 579         /* Skip trailing place-holders */
 580         pattern = npc_parse_skip_void_and_any_items(pattern);
 581
 582         /* Are there more items than what we can handle? */
 583         if (pattern->type != ROC_NPC_ITEM_TYPE_END)
 584                 return NPC_ERR_PATTERN_NOTSUP;
 585
 586         return 0;
 587 }
 588
 589 static int
 590 npc_parse_attr(struct npc *npc, const struct roc_npc_attr *attr,
 591                struct roc_npc_flow *flow)
 592 {
 593         if (attr == NULL)
 594                 return NPC_ERR_PARAM;
 595         else if (attr->priority >= npc->flow_max_priority)
 596                 return NPC_ERR_PARAM;
 597         else if ((!attr->egress && !attr->ingress) ||
 598                  (attr->egress && attr->ingress))
 599                 return NPC_ERR_PARAM;
 600
 601         if (attr->ingress)
 602                 flow->nix_intf = ROC_NPC_INTF_RX;
 603         else
 604                 flow->nix_intf = ROC_NPC_INTF_TX;
 605
 606         flow->priority = attr->priority;
 607         return 0;
 608 }
 609
 610 static int
 611 npc_parse_rule(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 612                const struct roc_npc_item_info pattern[],
 613                const struct roc_npc_action actions[], struct roc_npc_flow *flow,
 614                struct npc_parse_state *pst)
 615 {
 616         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 617         int err;
 618
 619         /* Check attr */
 620         err = npc_parse_attr(npc, attr, flow);
 621         if (err)
 622                 return err;
 623
 624         /* Check pattern */
 625         err = npc_parse_pattern(npc, pattern, flow, pst);
 626         if (err)
 627                 return err;
 628
 629         /* Check action */
 630         err = npc_parse_actions(roc_npc, attr, actions, flow);
 631         if (err)
 632                 return err;
 633         return 0;
 634 }
 635
 636 int
 637 roc_npc_flow_parse(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 638                    const struct roc_npc_item_info pattern[],
 639                    const struct roc_npc_action actions[],
 640                    struct roc_npc_flow *flow)
 641 {
 642         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 643         struct npc_parse_state parse_state = {0};
 644         int rc;
 645
 646         rc = npc_parse_rule(roc_npc, attr, pattern, actions, flow,
 647                             &parse_state);
 648         if (rc)
 649                 return rc;
 650
 651         parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
 652
 653         return npc_program_mcam(npc, &parse_state, 0);
 654 }
 655
 656 int
 657 npc_rss_free_grp_get(struct npc *npc, uint32_t *pos)
 658 {
 659         struct plt_bitmap *bmap = npc->rss_grp_entries;
 660
 661         for (*pos = 0; *pos < ROC_NIX_RSS_GRPS; ++*pos) {
 662                 if (!plt_bitmap_get(bmap, *pos))
 663                         break;
 664         }
 665         return *pos < ROC_NIX_RSS_GRPS ? 0 : -1;
 666 }
 667
 668 int
 669 npc_rss_action_configure(struct roc_npc *roc_npc,
 670                          const struct roc_npc_action_rss *rss, uint8_t *alg_idx,
 671                          uint32_t *rss_grp, uint32_t mcam_id)
 672 {
 673         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 674         struct roc_nix *roc_nix = roc_npc->roc_nix;
 675         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 676         uint32_t flowkey_cfg, rss_grp_idx, i, rem;
 677         uint8_t key[ROC_NIX_RSS_KEY_LEN];
 678         const uint8_t *key_ptr;
 679         uint8_t flowkey_algx;
 680         uint16_t *reta;
 681         int rc;
 682
 683         rc = npc_rss_free_grp_get(npc, &rss_grp_idx);
 684         /* RSS group :0 is not usable for flow rss action */
 685         if (rc < 0 || rss_grp_idx == 0)
 686                 return -ENOSPC;
 687
 688         for (i = 0; i < rss->queue_num; i++) {
 689                 if (rss->queue[i] >= nix->nb_rx_queues) {
 690                         plt_err("queue id > max number of queues");
 691                         return -EINVAL;
 692                 }
 693         }
 694
 695         *rss_grp = rss_grp_idx;
 696
 697         if (rss->key == NULL) {
 698                 roc_nix_rss_key_default_fill(roc_nix, key);
 699                 key_ptr = key;
 700         } else {
 701                 key_ptr = rss->key;
 702         }
 703
 704         roc_nix_rss_key_set(roc_nix, key_ptr);
 705
 706         /* If queue count passed in the rss action is less than
 707          * HW configured reta size, replicate rss action reta
 708          * across HW reta table.
 709          */
 710         reta = nix->reta[rss_grp_idx];
 711
 712         if (rss->queue_num > nix->reta_sz) {
 713                 plt_err("too many queues for RSS context");
 714                 return -ENOTSUP;
 715         }
 716
 717         for (i = 0; i < (nix->reta_sz / rss->queue_num); i++)
 718                 memcpy(reta + i * rss->queue_num, rss->queue,
 719                        sizeof(uint16_t) * rss->queue_num);
 720
 721         rem = nix->reta_sz % rss->queue_num;
 722         if (rem)
 723                 memcpy(&reta[i * rss->queue_num], rss->queue,
 724                        rem * sizeof(uint16_t));
 725
 726         rc = roc_nix_rss_reta_set(roc_nix, *rss_grp, reta);
 727         if (rc) {
 728                 plt_err("Failed to init rss table rc = %d", rc);
 729                 return rc;
 730         }
 731
 732         flowkey_cfg = roc_npc->flowkey_cfg_state;
 733
 734         rc = roc_nix_rss_flowkey_set(roc_nix, &flowkey_algx, flowkey_cfg,
 735                                      *rss_grp, mcam_id);
 736         if (rc) {
 737                 plt_err("Failed to set rss hash function rc = %d", rc);
 738                 return rc;
 739         }
 740
 741         *alg_idx = flowkey_algx;
 742
 743         plt_bitmap_set(npc->rss_grp_entries, *rss_grp);
 744
 745         return 0;
 746 }
 747
 748 int
 749 npc_rss_action_program(struct roc_npc *roc_npc,
 750                        const struct roc_npc_action actions[],
 751                        struct roc_npc_flow *flow)
 752 {
 753         const struct roc_npc_action_rss *rss;
 754         uint32_t rss_grp;
 755         uint8_t alg_idx;
 756         int rc;
 757
 758         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
 759                 if (actions->type == ROC_NPC_ACTION_TYPE_RSS) {
 760                         rss = (const struct roc_npc_action_rss *)actions->conf;
 761                         rc = npc_rss_action_configure(roc_npc, rss, &alg_idx,
 762                                                       &rss_grp, flow->mcam_id);
 763                         if (rc)
 764                                 return rc;
 765
 766                         flow->npc_action &= (~(0xfULL));
 767                         flow->npc_action |= NIX_RX_ACTIONOP_RSS;
 768                         flow->npc_action |=
 769                                 ((uint64_t)(alg_idx & NPC_RSS_ACT_ALG_MASK)
 770                                  << NPC_RSS_ACT_ALG_OFFSET) |
 771                                 ((uint64_t)(rss_grp & NPC_RSS_ACT_GRP_MASK)
 772                                  << NPC_RSS_ACT_GRP_OFFSET);
 773                         break;
 774                 }
 775         }
 776         return 0;
 777 }
 778
 779 int
 780 roc_npc_mark_actions_get(struct roc_npc *roc_npc)
 781 {
 782         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 783
 784         return npc->mark_actions;
 785 }
 786
 787 int
 788 roc_npc_mark_actions_sub_return(struct roc_npc *roc_npc, uint32_t count)
 789 {
 790         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 791
 792         npc->mark_actions -= count;
 793         return npc->mark_actions;
 794 }
 795
 796 static int
 797 npc_vtag_cfg_delete(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
 798 {
 799         struct roc_nix *roc_nix = roc_npc->roc_nix;
 800         struct nix_vtag_config *vtag_cfg;
 801         struct nix_vtag_config_rsp *rsp;
 802         struct mbox *mbox;
 803         struct nix *nix;
 804         int rc = 0;
 805
 806         union {
 807                 uint64_t reg;
 808                 struct nix_tx_vtag_action_s act;
 809         } tx_vtag_action;
 810
 811         nix = roc_nix_to_nix_priv(roc_nix);
 812         mbox = (&nix->dev)->mbox;
 813
 814         tx_vtag_action.reg = flow->vtag_action;
 815         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
 816
 817         if (vtag_cfg == NULL)
 818                 return -ENOSPC;
 819
 820         vtag_cfg->cfg_type = VTAG_TX;
 821         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
 822         vtag_cfg->tx.vtag0_idx = tx_vtag_action.act.vtag0_def;
 823         vtag_cfg->tx.free_vtag0 = true;
 824
 825         if (flow->vtag_insert_count == 2) {
 826                 vtag_cfg->tx.vtag1_idx = tx_vtag_action.act.vtag1_def;
 827                 vtag_cfg->tx.free_vtag1 = true;
 828         }
 829
 830         rc = mbox_process_msg(mbox, (void *)&rsp);
 831         if (rc)
 832                 return rc;
 833
 834         return 0;
 835 }
 836
 837 static int
 838 npc_vtag_insert_action_parse(const struct roc_npc_action actions[],
 839                              struct roc_npc_flow *flow,
 840                              struct npc_action_vtag_info *vlan_info,
 841                              int *parsed_cnt)
 842 {
 843         bool vlan_id_found = false, ethtype_found = false, pcp_found = false;
 844         int count = 0;
 845
 846         *parsed_cnt = 0;
 847
 848         /* This function parses parameters of one VLAN. When a parameter is
 849          * found repeated, it treats it as the end of first VLAN's parameters
 850          * and returns. The caller calls again to parse the parameters of the
 851          * second VLAN.
 852          */
 853
 854         for (; count < NPC_ACTION_MAX_VLAN_PARAMS; count++, actions++) {
 855                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_INSERT) {
 856                         if (vlan_id_found)
 857                                 return 0;
 858
 859                         const struct roc_npc_action_of_set_vlan_vid *vtag =
 860                                 (const struct roc_npc_action_of_set_vlan_vid *)
 861                                         actions->conf;
 862
 863                         vlan_info->vlan_id = plt_be_to_cpu_16(vtag->vlan_vid);
 864
 865                         if (vlan_info->vlan_id > 0xfff) {
 866                                 plt_err("Invalid vlan_id for set vlan action");
 867                                 return -EINVAL;
 868                         }
 869
 870                         flow->vtag_insert_enabled = true;
 871                         (*parsed_cnt)++;
 872                         vlan_id_found = true;
 873                 } else if (actions->type ==
 874                            ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT) {
 875                         if (ethtype_found)
 876                                 return 0;
 877
 878                         const struct roc_npc_action_of_push_vlan *ethtype =
 879                                 (const struct roc_npc_action_of_push_vlan *)
 880                                         actions->conf;
 881                         vlan_info->vlan_ethtype =
 882                                 plt_be_to_cpu_16(ethtype->ethertype);
 883                         if (vlan_info->vlan_ethtype != ROC_ETHER_TYPE_VLAN &&
 884                             vlan_info->vlan_ethtype != ROC_ETHER_TYPE_QINQ) {
 885                                 plt_err("Invalid ethtype specified for push"
 886                                         " vlan action");
 887                                 return -EINVAL;
 888                         }
 889                         flow->vtag_insert_enabled = true;
 890                         (*parsed_cnt)++;
 891                         ethtype_found = true;
 892                 } else if (actions->type ==
 893                            ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
 894                         if (pcp_found)
 895                                 return 0;
 896                         const struct roc_npc_action_of_set_vlan_pcp *pcp =
 897                                 (const struct roc_npc_action_of_set_vlan_pcp *)
 898                                         actions->conf;
 899                         vlan_info->vlan_pcp = pcp->vlan_pcp;
 900                         if (vlan_info->vlan_pcp > 0x7) {
 901                                 plt_err("Invalid PCP value for pcp action");
 902                                 return -EINVAL;
 903                         }
 904                         flow->vtag_insert_enabled = true;
 905                         (*parsed_cnt)++;
 906                         pcp_found = true;
 907                 } else {
 908                         return 0;
 909                 }
 910         }
 911
 912         return 0;
 913 }
 914
 915 static int
 916 npc_vtag_insert_action_configure(struct mbox *mbox, struct roc_npc_flow *flow,
 917                                  struct npc_action_vtag_info *vlan_info)
 918 {
 919         struct nix_vtag_config *vtag_cfg;
 920         struct nix_vtag_config_rsp *rsp;
 921         int rc = 0;
 922
 923         union {
 924                 uint64_t reg;
 925                 struct nix_tx_vtag_action_s act;
 926         } tx_vtag_action;
 927
 928         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
 929
 930         if (vtag_cfg == NULL)
 931                 return -ENOSPC;
 932
 933         vtag_cfg->cfg_type = VTAG_TX;
 934         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
 935         vtag_cfg->tx.vtag0 =
 936                 ((vlan_info[0].vlan_ethtype << 16) |
 937                  (vlan_info[0].vlan_pcp << 13) | vlan_info[0].vlan_id);
 938
 939         vtag_cfg->tx.cfg_vtag0 = 1;
 940
 941         if (flow->vtag_insert_count == 2) {
 942                 vtag_cfg->tx.vtag1 =
 943                         ((vlan_info[1].vlan_ethtype << 16) |
 944                          (vlan_info[1].vlan_pcp << 13) | vlan_info[1].vlan_id);
 945
 946                 vtag_cfg->tx.cfg_vtag1 = 1;
 947         }
 948
 949         rc = mbox_process_msg(mbox, (void *)&rsp);
 950         if (rc)
 951                 return rc;
 952
 953         if (rsp->vtag0_idx < 0 ||
 954             ((flow->vtag_insert_count == 2) && (rsp->vtag1_idx < 0))) {
 955                 plt_err("Failed to config TX VTAG action");
 956                 return -EINVAL;
 957         }
 958
 959         tx_vtag_action.reg = 0;
 960         tx_vtag_action.act.vtag0_def = rsp->vtag0_idx;
 961         tx_vtag_action.act.vtag0_lid = NPC_LID_LA;
 962         tx_vtag_action.act.vtag0_op = NIX_TX_VTAGOP_INSERT;
 963         tx_vtag_action.act.vtag0_relptr = NIX_TX_VTAGACTION_VTAG0_RELPTR;
 964
 965         if (flow->vtag_insert_count == 2) {
 966                 tx_vtag_action.act.vtag1_def = rsp->vtag1_idx;
 967                 tx_vtag_action.act.vtag1_lid = NPC_LID_LA;
 968                 tx_vtag_action.act.vtag1_op = NIX_TX_VTAGOP_INSERT;
 969                 /* NIX_TX_VTAG_ACTION_S
 970                  *  If Vtag 0 is inserted, hardware adjusts the Vtag 1 byte
 971                  *  offset accordingly. Thus, if the two offsets are equal in
 972                  *  the structure, hardware inserts Vtag 1 immediately after
 973                  *  Vtag 0 in the packet.
 974                  */
 975                 tx_vtag_action.act.vtag1_relptr =
 976                         NIX_TX_VTAGACTION_VTAG0_RELPTR;
 977         }
 978
 979         flow->vtag_action = tx_vtag_action.reg;
 980
 981         return 0;
 982 }
 983
 984 static int
 985 npc_vtag_strip_action_configure(struct mbox *mbox,
 986                                 const struct roc_npc_action actions[],
 987                                 struct roc_npc_flow *flow, int *strip_cnt)
 988 {
 989         struct nix_vtag_config *vtag_cfg;
 990         uint64_t rx_vtag_action = 0;
 991         int count = 0, rc = 0;
 992
 993         *strip_cnt = 0;
 994
 995         for (; count < NPC_ACTION_MAX_VLANS_STRIPPED; count++, actions++) {
 996                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_STRIP)
 997                         (*strip_cnt)++;
 998         }
 999
1000         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
1001
1002         if (vtag_cfg == NULL)
1003                 return -ENOSPC;
1004
1005         vtag_cfg->cfg_type = VTAG_RX;
1006         vtag_cfg->rx.strip_vtag = 1;
1007         /* Always capture */
1008         vtag_cfg->rx.capture_vtag = 1;
1009         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
1010         vtag_cfg->rx.vtag_type = 0;
1011
1012         rc = mbox_process(mbox);
1013         if (rc)
1014                 return rc;
1015
1016         rx_vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 15);
1017         rx_vtag_action |= ((uint64_t)NPC_LID_LB << 8);
1018         rx_vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR;
1019
1020         if (*strip_cnt == 2) {
1021                 rx_vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 47);
1022                 rx_vtag_action |= ((uint64_t)NPC_LID_LB << 40);
1023                 rx_vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR << 32;
1024         }
1025         flow->vtag_action = rx_vtag_action;
1026
1027         return 0;
1028 }
1029
1030 static int
1031 npc_vtag_action_program(struct roc_npc *roc_npc,
1032                         const struct roc_npc_action actions[],
1033                         struct roc_npc_flow *flow)
1034 {
1035         bool vlan_strip_parsed = false, vlan_insert_parsed = false;
1036         const struct roc_npc_action *insert_actions;
1037         struct roc_nix *roc_nix = roc_npc->roc_nix;
1038         struct npc_action_vtag_info vlan_info[2];
1039         int parsed_cnt = 0, strip_cnt = 0;
1040         int tot_vlan_params = 0;
1041         struct mbox *mbox;
1042         struct nix *nix;
1043         int i, rc;
1044
1045         nix = roc_nix_to_nix_priv(roc_nix);
1046         mbox = (&nix->dev)->mbox;
1047
1048         memset(vlan_info, 0, sizeof(vlan_info));
1049
1050         flow->vtag_insert_enabled = false;
1051
1052         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
1053                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
1054                         if (vlan_strip_parsed) {
1055                                 plt_err("Incorrect VLAN strip actions");
1056                                 return -EINVAL;
1057                         }
1058                         rc = npc_vtag_strip_action_configure(mbox, actions,
1059                                                              flow, &strip_cnt);
1060                         if (rc)
1061                                 return rc;
1062
1063                         if (strip_cnt == 2)
1064                                 actions++;
1065
1066                         vlan_strip_parsed = true;
1067                 } else if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_INSERT ||
1068                            actions->type ==
1069                                    ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT ||
1070                            actions->type ==
1071                                    ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
1072                         if (vlan_insert_parsed) {
1073                                 plt_err("Incorrect VLAN insert actions");
1074                                 return -EINVAL;
1075                         }
1076
1077                         insert_actions = actions;
1078
1079                         for (i = 0; i < 2; i++) {
1080                                 rc = npc_vtag_insert_action_parse(
1081                                         insert_actions, flow, &vlan_info[i],
1082                                         &parsed_cnt);
1083
1084                                 if (rc)
1085                                         return rc;
1086
1087                                 if (parsed_cnt) {
1088                                         insert_actions += parsed_cnt;
1089                                         tot_vlan_params += parsed_cnt;
1090                                         flow->vtag_insert_count++;
1091                                 }
1092                         }
1093                         actions += tot_vlan_params - 1;
1094                         vlan_insert_parsed = true;
1095                 }
1096         }
1097
1098         if (flow->vtag_insert_enabled) {
1099                 rc = npc_vtag_insert_action_configure(mbox, flow, vlan_info);
1100
1101                 if (rc)
1102                         return rc;
1103         }
1104         return 0;
1105 }
1106
1107 struct roc_npc_flow *
1108 roc_npc_flow_create(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
1109                     const struct roc_npc_item_info pattern[],
1110                     const struct roc_npc_action actions[], int *errcode)
1111 {
1112         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1113         struct roc_npc_flow *flow, *flow_iter;
1114         struct npc_parse_state parse_state;
1115         struct npc_flow_list *list;
1116         int rc;
1117
1118         npc->channel = roc_npc->channel;
1119
1120         flow = plt_zmalloc(sizeof(*flow), 0);
1121         if (flow == NULL) {
1122                 *errcode = NPC_ERR_NO_MEM;
1123                 return NULL;
1124         }
1125         memset(flow, 0, sizeof(*flow));
1126
1127         rc = npc_parse_rule(roc_npc, attr, pattern, actions, flow,
1128                             &parse_state);
1129         if (rc != 0) {
1130                 *errcode = rc;
1131                 goto err_exit;
1132         }
1133
1134         rc = npc_vtag_action_program(roc_npc, actions, flow);
1135         if (rc != 0) {
1136                 *errcode = rc;
1137                 goto err_exit;
1138         }
1139
1140         parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
1141
1142         rc = npc_program_mcam(npc, &parse_state, 1);
1143         if (rc != 0) {
1144                 *errcode = rc;
1145                 goto err_exit;
1146         }
1147
1148         rc = npc_rss_action_program(roc_npc, actions, flow);
1149         if (rc != 0) {
1150                 *errcode = rc;
1151                 goto set_rss_failed;
1152         }
1153
1154         list = &npc->flow_list[flow->priority];
1155         /* List in ascending order of mcam entries */
1156         TAILQ_FOREACH(flow_iter, list, next) {
1157                 if (flow_iter->mcam_id > flow->mcam_id) {
1158                         TAILQ_INSERT_BEFORE(flow_iter, flow, next);
1159                         return flow;
1160                 }
1161         }
1162
1163         TAILQ_INSERT_TAIL(list, flow, next);
1164         return flow;
1165
1166 set_rss_failed:
1167         rc = npc_mcam_free_entry(npc, flow->mcam_id);
1168         if (rc != 0) {
1169                 *errcode = rc;
1170                 plt_free(flow);
1171                 return NULL;
1172         }
1173 err_exit:
1174         plt_free(flow);
1175         return NULL;
1176 }
1177
1178 int
1179 npc_rss_group_free(struct npc *npc, struct roc_npc_flow *flow)
1180 {
1181         uint32_t rss_grp;
1182
1183         if ((flow->npc_action & 0xF) == NIX_RX_ACTIONOP_RSS) {
1184                 rss_grp = (flow->npc_action >> NPC_RSS_ACT_GRP_OFFSET) &
1185                           NPC_RSS_ACT_GRP_MASK;
1186                 if (rss_grp == 0 || rss_grp >= npc->rss_grps)
1187                         return -EINVAL;
1188
1189                 plt_bitmap_clear(npc->rss_grp_entries, rss_grp);
1190         }
1191
1192         return 0;
1193 }
1194
1195 int
1196 roc_npc_flow_destroy(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
1197 {
1198         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1199         int rc;
1200
1201         rc = npc_rss_group_free(npc, flow);
1202         if (rc != 0) {
1203                 plt_err("Failed to free rss action rc = %d", rc);
1204                 return rc;
1205         }
1206
1207         if (flow->vtag_insert_enabled) {
1208                 rc = npc_vtag_cfg_delete(roc_npc, flow);
1209                 if (rc != 0)
1210                         return rc;
1211         }
1212
1213         rc = npc_mcam_free_entry(npc, flow->mcam_id);
1214         if (rc != 0)
1215                 return rc;
1216
1217         TAILQ_REMOVE(&npc->flow_list[flow->priority], flow, next);
1218
1219         npc_delete_prio_list_entry(npc, flow);
1220
1221         plt_free(flow);
1222         return 0;
1223 }
1224
1225 void
1226 roc_npc_flow_dump(FILE *file, struct roc_npc *roc_npc)
1227 {
1228         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1229         struct roc_npc_flow *flow_iter;
1230         struct npc_flow_list *list;
1231         uint32_t max_prio, i;
1232
1233         max_prio = npc->flow_max_priority;
1234
1235         for (i = 0; i < max_prio; i++) {
1236                 list = &npc->flow_list[i];
1237
1238                 /* List in ascending order of mcam entries */
1239                 TAILQ_FOREACH(flow_iter, list, next) {
1240                         roc_npc_flow_mcam_dump(file, roc_npc, flow_iter);
1241                 }
1242         }
1243 }
1244
1245 int
1246 roc_npc_mcam_merge_base_steering_rule(struct roc_npc *roc_npc,
1247                                       struct roc_npc_flow *flow)
1248 {
1249         struct npc_mcam_read_base_rule_rsp *base_rule_rsp;
1250         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1251         struct mcam_entry *base_entry;
1252         int idx, rc;
1253
1254         if (roc_nix_is_pf(roc_npc->roc_nix))
1255                 return 0;
1256
1257         (void)mbox_alloc_msg_npc_read_base_steer_rule(npc->mbox);
1258         rc = mbox_process_msg(npc->mbox, (void *)&base_rule_rsp);
1259         if (rc) {
1260                 plt_err("Failed to fetch VF's base MCAM entry");
1261                 return rc;
1262         }
1263         base_entry = &base_rule_rsp->entry_data;
1264         for (idx = 0; idx < ROC_NPC_MAX_MCAM_WIDTH_DWORDS; idx++) {
1265                 flow->mcam_data[idx] |= base_entry->kw[idx];
1266                 flow->mcam_mask[idx] |= base_entry->kw_mask[idx];
1267         }
1268
1269         return 0;
1270 }