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_enable_all_entries(struct roc_npc *roc_npc, bool enable)
  79 {
  80         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  81
  82         return npc_flow_enable_all_entries(npc, enable);
  83 }
  84
  85 int
  86 roc_npc_mcam_alloc_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
  87                          struct roc_npc_flow *ref_mcam, int prio,
  88                          int *resp_count)
  89 {
  90         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
  91
  92         return npc_mcam_alloc_entry(npc, mcam, ref_mcam, prio, resp_count);
  93 }
  94
  95 int
  96 roc_npc_mcam_ena_dis_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam,
  97                            bool enable)
  98 {
  99         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 100
 101         return npc_mcam_ena_dis_entry(npc, mcam, enable);
 102 }
 103
 104 int
 105 roc_npc_mcam_write_entry(struct roc_npc *roc_npc, struct roc_npc_flow *mcam)
 106 {
 107         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 108
 109         return npc_mcam_write_entry(npc, mcam);
 110 }
 111
 112 int
 113 roc_npc_get_low_priority_mcam(struct roc_npc *roc_npc)
 114 {
 115         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 116
 117         if (roc_model_is_cn10k())
 118                 return (npc->mcam_entries - NPC_MCAME_RESVD_10XX - 1);
 119         else if (roc_model_is_cn98xx())
 120                 return (npc->mcam_entries - NPC_MCAME_RESVD_98XX - 1);
 121         else
 122                 return (npc->mcam_entries - NPC_MCAME_RESVD_9XXX - 1);
 123 }
 124
 125 static int
 126 npc_mcam_tot_entries(void)
 127 {
 128         /* FIXME: change to reading in AF from NPC_AF_CONST1/2
 129          * MCAM_BANK_DEPTH(_EXT) * MCAM_BANKS
 130          */
 131         if (roc_model_is_cn10k() || roc_model_is_cn98xx())
 132                 return 16 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 4096 */
 133         else
 134                 return 4 * 1024; /* MCAM_BANKS = 4, BANK_DEPTH_EXT = 1024 */
 135 }
 136
 137 const char *
 138 roc_npc_profile_name_get(struct roc_npc *roc_npc)
 139 {
 140         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 141
 142         return (char *)npc->profile_name;
 143 }
 144
 145 int
 146 roc_npc_init(struct roc_npc *roc_npc)
 147 {
 148         uint8_t *mem = NULL, *nix_mem = NULL, *npc_mem = NULL;
 149         struct nix *nix = roc_nix_to_nix_priv(roc_npc->roc_nix);
 150         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 151         uint32_t bmap_sz;
 152         int rc = 0, idx;
 153         size_t sz;
 154
 155         PLT_STATIC_ASSERT(sizeof(struct npc) <= ROC_NPC_MEM_SZ);
 156
 157         memset(npc, 0, sizeof(*npc));
 158         npc->mbox = (&nix->dev)->mbox;
 159         roc_npc->channel = nix->rx_chan_base;
 160         roc_npc->pf_func = (&nix->dev)->pf_func;
 161         npc->channel = roc_npc->channel;
 162         npc->pf_func = roc_npc->pf_func;
 163         npc->flow_max_priority = roc_npc->flow_max_priority;
 164         npc->switch_header_type = roc_npc->switch_header_type;
 165         npc->flow_prealloc_size = roc_npc->flow_prealloc_size;
 166
 167         if (npc->mbox == NULL)
 168                 return NPC_ERR_PARAM;
 169
 170         rc = npc_mcam_fetch_kex_cfg(npc);
 171         if (rc)
 172                 goto done;
 173
 174         roc_npc->kex_capability = npc_get_kex_capability(npc);
 175         roc_npc->rx_parse_nibble = npc->keyx_supp_nmask[NPC_MCAM_RX];
 176
 177         npc->mcam_entries = npc_mcam_tot_entries() >> npc->keyw[NPC_MCAM_RX];
 178
 179         /* Free, free_rev, live and live_rev entries */
 180         bmap_sz = plt_bitmap_get_memory_footprint(npc->mcam_entries);
 181         mem = plt_zmalloc(4 * bmap_sz * npc->flow_max_priority, 0);
 182         if (mem == NULL) {
 183                 plt_err("Bmap alloc failed");
 184                 rc = NPC_ERR_NO_MEM;
 185                 return rc;
 186         }
 187
 188         sz = npc->flow_max_priority * sizeof(struct npc_flow_list);
 189         npc->flow_list = plt_zmalloc(sz, 0);
 190         if (npc->flow_list == NULL) {
 191                 plt_err("flow_list alloc failed");
 192                 rc = NPC_ERR_NO_MEM;
 193                 goto done;
 194         }
 195
 196         sz = npc->flow_max_priority * sizeof(struct npc_prio_flow_list_head);
 197         npc->prio_flow_list = plt_zmalloc(sz, 0);
 198         if (npc->prio_flow_list == NULL) {
 199                 plt_err("prio_flow_list alloc failed");
 200                 rc = NPC_ERR_NO_MEM;
 201                 goto done;
 202         }
 203
 204         npc_mem = mem;
 205         for (idx = 0; idx < npc->flow_max_priority; idx++) {
 206                 TAILQ_INIT(&npc->flow_list[idx]);
 207                 TAILQ_INIT(&npc->prio_flow_list[idx]);
 208         }
 209
 210         npc->rss_grps = NPC_RSS_GRPS;
 211
 212         bmap_sz = plt_bitmap_get_memory_footprint(npc->rss_grps);
 213         nix_mem = plt_zmalloc(bmap_sz, 0);
 214         if (nix_mem == NULL) {
 215                 plt_err("Bmap alloc failed");
 216                 rc = NPC_ERR_NO_MEM;
 217                 goto done;
 218         }
 219
 220         npc->rss_grp_entries = plt_bitmap_init(npc->rss_grps, nix_mem, bmap_sz);
 221
 222         if (!npc->rss_grp_entries) {
 223                 plt_err("bitmap init failed");
 224                 rc = NPC_ERR_NO_MEM;
 225                 goto done;
 226         }
 227
 228         /* Group 0 will be used for RSS,
 229          * 1 -7 will be used for npc_flow RSS action
 230          */
 231         plt_bitmap_set(npc->rss_grp_entries, 0);
 232
 233         return rc;
 234
 235 done:
 236         if (npc->flow_list)
 237                 plt_free(npc->flow_list);
 238         if (npc->prio_flow_list)
 239                 plt_free(npc->prio_flow_list);
 240         if (npc_mem)
 241                 plt_free(npc_mem);
 242         return rc;
 243 }
 244
 245 int
 246 roc_npc_fini(struct roc_npc *roc_npc)
 247 {
 248         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 249         int rc;
 250
 251         rc = npc_flow_free_all_resources(npc);
 252         if (rc) {
 253                 plt_err("Error when deleting NPC MCAM entries, counters");
 254                 return rc;
 255         }
 256
 257         if (npc->flow_list) {
 258                 plt_free(npc->flow_list);
 259                 npc->flow_list = NULL;
 260         }
 261
 262         if (npc->prio_flow_list) {
 263                 plt_free(npc->prio_flow_list);
 264                 npc->prio_flow_list = NULL;
 265         }
 266
 267         return 0;
 268 }
 269
 270 int
 271 roc_npc_validate_portid_action(struct roc_npc *roc_npc_src,
 272                                struct roc_npc *roc_npc_dst)
 273 {
 274         struct roc_nix *roc_nix_src = roc_npc_src->roc_nix;
 275         struct nix *nix_src = roc_nix_to_nix_priv(roc_nix_src);
 276         struct roc_nix *roc_nix_dst = roc_npc_dst->roc_nix;
 277         struct nix *nix_dst = roc_nix_to_nix_priv(roc_nix_dst);
 278
 279         if (roc_nix_is_pf(roc_npc_dst->roc_nix)) {
 280                 plt_err("Output port should be VF");
 281                 return -EINVAL;
 282         }
 283
 284         if (nix_dst->dev.vf >= nix_src->dev.maxvf) {
 285                 plt_err("Invalid VF for output port");
 286                 return -EINVAL;
 287         }
 288
 289         if (nix_src->dev.pf != nix_dst->dev.pf) {
 290                 plt_err("Output port should be VF of ingress PF");
 291                 return -EINVAL;
 292         }
 293         return 0;
 294 }
 295
 296 static int
 297 npc_parse_actions(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 298                   const struct roc_npc_action actions[],
 299                   struct roc_npc_flow *flow)
 300 {
 301         const struct roc_npc_action_port_id *act_portid;
 302         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 303         const struct roc_npc_action_mark *act_mark;
 304         const struct roc_npc_action_meter *act_mtr;
 305         const struct roc_npc_action_queue *act_q;
 306         const struct roc_npc_action_vf *vf_act;
 307         bool vlan_insert_action = false;
 308         int sel_act, req_act = 0;
 309         uint16_t pf_func, vf_id;
 310         int errcode = 0;
 311         int mark = 0;
 312         int rq = 0;
 313
 314         /* Initialize actions */
 315         flow->ctr_id = NPC_COUNTER_NONE;
 316         flow->mtr_id = ROC_NIX_MTR_ID_INVALID;
 317         pf_func = npc->pf_func;
 318
 319         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
 320                 switch (actions->type) {
 321                 case ROC_NPC_ACTION_TYPE_VOID:
 322                         break;
 323                 case ROC_NPC_ACTION_TYPE_MARK:
 324                         act_mark = (const struct roc_npc_action_mark *)
 325                                            actions->conf;
 326                         if (act_mark->id > (NPC_FLOW_FLAG_VAL - 2)) {
 327                                 plt_err("mark value must be < 0xfffe");
 328                                 goto err_exit;
 329                         }
 330                         mark = act_mark->id + 1;
 331                         req_act |= ROC_NPC_ACTION_TYPE_MARK;
 332                         break;
 333
 334                 case ROC_NPC_ACTION_TYPE_FLAG:
 335                         mark = NPC_FLOW_FLAG_VAL;
 336                         req_act |= ROC_NPC_ACTION_TYPE_FLAG;
 337                         break;
 338
 339                 case ROC_NPC_ACTION_TYPE_COUNT:
 340                         /* Indicates, need a counter */
 341                         flow->ctr_id = 1;
 342                         req_act |= ROC_NPC_ACTION_TYPE_COUNT;
 343                         break;
 344
 345                 case ROC_NPC_ACTION_TYPE_DROP:
 346                         req_act |= ROC_NPC_ACTION_TYPE_DROP;
 347                         break;
 348
 349                 case ROC_NPC_ACTION_TYPE_PF:
 350                         req_act |= ROC_NPC_ACTION_TYPE_PF;
 351                         pf_func &= (0xfc00);
 352                         break;
 353
 354                 case ROC_NPC_ACTION_TYPE_VF:
 355                         vf_act =
 356                                 (const struct roc_npc_action_vf *)actions->conf;
 357                         req_act |= ROC_NPC_ACTION_TYPE_VF;
 358                         vf_id = vf_act->id & RVU_PFVF_FUNC_MASK;
 359                         pf_func &= (0xfc00);
 360                         pf_func = (pf_func | (vf_id + 1));
 361                         break;
 362
 363                 case ROC_NPC_ACTION_TYPE_PORT_ID:
 364                         act_portid = (const struct roc_npc_action_port_id *)
 365                                              actions->conf;
 366                         pf_func &= (0xfc00);
 367                         pf_func = (pf_func | (act_portid->id + 1));
 368                         req_act |= ROC_NPC_ACTION_TYPE_VF;
 369                         break;
 370
 371                 case ROC_NPC_ACTION_TYPE_QUEUE:
 372                         act_q = (const struct roc_npc_action_queue *)
 373                                         actions->conf;
 374                         rq = act_q->index;
 375                         req_act |= ROC_NPC_ACTION_TYPE_QUEUE;
 376                         break;
 377
 378                 case ROC_NPC_ACTION_TYPE_RSS:
 379                         req_act |= ROC_NPC_ACTION_TYPE_RSS;
 380                         break;
 381
 382                 case ROC_NPC_ACTION_TYPE_SEC:
 383                         /* Assumes user has already configured security
 384                          * session for this flow. Associated conf is
 385                          * opaque. When security is implemented,
 386                          * we need to verify that for specified security
 387                          * session:
 388                          *  action_type ==
 389                          *    NPC_SECURITY_ACTION_TYPE_INLINE_PROTOCOL &&
 390                          *  session_protocol ==
 391                          *    NPC_SECURITY_PROTOCOL_IPSEC
 392                          */
 393                         req_act |= ROC_NPC_ACTION_TYPE_SEC;
 394                         rq = 0;
 395
 396                         /* Special processing when with inline device */
 397                         if (roc_nix_inb_is_with_inl_dev(roc_npc->roc_nix) &&
 398                             roc_nix_inl_dev_is_probed()) {
 399                                 rq = 0;
 400                                 pf_func = nix_inl_dev_pffunc_get();
 401                         }
 402                         break;
 403                 case ROC_NPC_ACTION_TYPE_VLAN_STRIP:
 404                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_STRIP;
 405                         break;
 406                 case ROC_NPC_ACTION_TYPE_VLAN_INSERT:
 407                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_INSERT;
 408                         break;
 409                 case ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT:
 410                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT;
 411                         break;
 412                 case ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT:
 413                         req_act |= ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT;
 414                         break;
 415                 case ROC_NPC_ACTION_TYPE_METER:
 416                         act_mtr = (const struct roc_npc_action_meter *)
 417                                           actions->conf;
 418                         flow->mtr_id = act_mtr->mtr_id;
 419                         req_act |= ROC_NPC_ACTION_TYPE_METER;
 420                         break;
 421                 default:
 422                         errcode = NPC_ERR_ACTION_NOTSUP;
 423                         goto err_exit;
 424                 }
 425         }
 426
 427         if (req_act & (ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 428                        ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 429                        ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT))
 430                 vlan_insert_action = true;
 431
 432         if ((req_act & (ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 433                         ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 434                         ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT)) ==
 435             ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
 436                 plt_err("PCP insert action can't be supported alone");
 437                 errcode = NPC_ERR_ACTION_NOTSUP;
 438                 goto err_exit;
 439         }
 440
 441         /* Both STRIP and INSERT actions are not supported */
 442         if (vlan_insert_action && (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP)) {
 443                 errcode = NPC_ERR_ACTION_NOTSUP;
 444                 goto err_exit;
 445         }
 446
 447         /* Check if actions specified are compatible */
 448         if (attr->egress) {
 449                 if (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
 450                         plt_err("VLAN pop action is not supported on Egress");
 451                         errcode = NPC_ERR_ACTION_NOTSUP;
 452                         goto err_exit;
 453                 }
 454
 455                 if (req_act &
 456                     ~(ROC_NPC_ACTION_TYPE_VLAN_INSERT |
 457                       ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT |
 458                       ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT |
 459                       ROC_NPC_ACTION_TYPE_DROP | ROC_NPC_ACTION_TYPE_COUNT)) {
 460                         plt_err("Only VLAN insert, drop, count supported on Egress");
 461                         errcode = NPC_ERR_ACTION_NOTSUP;
 462                         goto err_exit;
 463                 }
 464
 465                 if (vlan_insert_action &&
 466                     (req_act & ROC_NPC_ACTION_TYPE_DROP)) {
 467                         plt_err("Both VLAN insert and drop actions cannot be supported");
 468                         errcode = NPC_ERR_ACTION_NOTSUP;
 469                         goto err_exit;
 470                 }
 471
 472                 if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 473                         flow->npc_action = NIX_TX_ACTIONOP_DROP;
 474                 } else if ((req_act & ROC_NPC_ACTION_TYPE_COUNT) ||
 475                            vlan_insert_action) {
 476                         flow->npc_action = NIX_TX_ACTIONOP_UCAST_DEFAULT;
 477                 } else {
 478                         plt_err("Unsupported action for egress");
 479                         errcode = NPC_ERR_ACTION_NOTSUP;
 480                         goto err_exit;
 481                 }
 482
 483                 goto set_pf_func;
 484         } else {
 485                 if (vlan_insert_action) {
 486                         errcode = NPC_ERR_ACTION_NOTSUP;
 487                         goto err_exit;
 488                 }
 489         }
 490
 491         /* We have already verified the attr, this is ingress.
 492          * - Exactly one terminating action is supported
 493          * - Exactly one of MARK or FLAG is supported
 494          * - If terminating action is DROP, only count is valid.
 495          */
 496         sel_act = req_act & NPC_ACTION_TERM;
 497         if ((sel_act & (sel_act - 1)) != 0) {
 498                 errcode = NPC_ERR_ACTION_NOTSUP;
 499                 goto err_exit;
 500         }
 501
 502         if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 503                 sel_act = req_act & ~ROC_NPC_ACTION_TYPE_COUNT;
 504                 if ((sel_act & (sel_act - 1)) != 0) {
 505                         errcode = NPC_ERR_ACTION_NOTSUP;
 506                         goto err_exit;
 507                 }
 508         }
 509
 510         if ((req_act & (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) ==
 511             (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
 512                 errcode = NPC_ERR_ACTION_NOTSUP;
 513                 goto err_exit;
 514         }
 515
 516         if (req_act & ROC_NPC_ACTION_TYPE_VLAN_STRIP)
 517                 npc->vtag_strip_actions++;
 518
 519         /* Set NIX_RX_ACTIONOP */
 520         if (req_act == ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
 521                 /* Only VLAN action is provided */
 522                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 523         } else if (req_act &
 524                    (ROC_NPC_ACTION_TYPE_PF | ROC_NPC_ACTION_TYPE_VF)) {
 525                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 526                 if (req_act & ROC_NPC_ACTION_TYPE_QUEUE)
 527                         flow->npc_action |= (uint64_t)rq << 20;
 528         } else if (req_act & ROC_NPC_ACTION_TYPE_DROP) {
 529                 flow->npc_action = NIX_RX_ACTIONOP_DROP;
 530         } else if (req_act & ROC_NPC_ACTION_TYPE_QUEUE) {
 531                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 532                 flow->npc_action |= (uint64_t)rq << 20;
 533         } else if (req_act & ROC_NPC_ACTION_TYPE_RSS) {
 534                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 535         } else if (req_act & ROC_NPC_ACTION_TYPE_SEC) {
 536                 flow->npc_action = NIX_RX_ACTIONOP_UCAST_IPSEC;
 537                 flow->npc_action |= (uint64_t)rq << 20;
 538         } else if (req_act &
 539                    (ROC_NPC_ACTION_TYPE_FLAG | ROC_NPC_ACTION_TYPE_MARK)) {
 540                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 541         } else if (req_act & ROC_NPC_ACTION_TYPE_COUNT) {
 542                 /* Keep ROC_NPC_ACTION_TYPE_COUNT_ACT always at the end
 543                  * This is default action, when user specify only
 544                  * COUNT ACTION
 545                  */
 546                 flow->npc_action = NIX_RX_ACTIONOP_UCAST;
 547         } else {
 548                 /* Should never reach here */
 549                 errcode = NPC_ERR_ACTION_NOTSUP;
 550                 goto err_exit;
 551         }
 552
 553         if (mark)
 554                 flow->npc_action |= (uint64_t)mark << 40;
 555
 556 set_pf_func:
 557         /* Ideally AF must ensure that correct pf_func is set */
 558         flow->npc_action |= (uint64_t)pf_func << 4;
 559
 560         return 0;
 561
 562 err_exit:
 563         return errcode;
 564 }
 565
 566 typedef int (*npc_parse_stage_func_t)(struct npc_parse_state *pst);
 567
 568 static int
 569 npc_parse_pattern(struct npc *npc, const struct roc_npc_item_info pattern[],
 570                   struct roc_npc_flow *flow, struct npc_parse_state *pst)
 571 {
 572         npc_parse_stage_func_t parse_stage_funcs[] = {
 573                 npc_parse_meta_items, npc_parse_mark_item,  npc_parse_pre_l2,
 574                 npc_parse_cpt_hdr,    npc_parse_higig2_hdr, npc_parse_la,
 575                 npc_parse_lb,         npc_parse_lc,         npc_parse_ld,
 576                 npc_parse_le,         npc_parse_lf,         npc_parse_lg,
 577                 npc_parse_lh,
 578         };
 579         uint8_t layer = 0;
 580         int key_offset;
 581         int rc;
 582
 583         if (pattern == NULL)
 584                 return NPC_ERR_PARAM;
 585
 586         memset(pst, 0, sizeof(*pst));
 587         pst->npc = npc;
 588         pst->flow = flow;
 589
 590         /* Use integral byte offset */
 591         key_offset = pst->npc->keyx_len[flow->nix_intf];
 592         key_offset = (key_offset + 7) / 8;
 593
 594         /* Location where LDATA would begin */
 595         pst->mcam_data = (uint8_t *)flow->mcam_data;
 596         pst->mcam_mask = (uint8_t *)flow->mcam_mask;
 597
 598         while (pattern->type != ROC_NPC_ITEM_TYPE_END &&
 599                layer < PLT_DIM(parse_stage_funcs)) {
 600                 /* Skip place-holders */
 601                 pattern = npc_parse_skip_void_and_any_items(pattern);
 602
 603                 pst->pattern = pattern;
 604                 rc = parse_stage_funcs[layer](pst);
 605                 if (rc != 0)
 606                         return rc;
 607
 608                 layer++;
 609
 610                 /*
 611                  * Parse stage function sets pst->pattern to
 612                  * 1 past the last item it consumed.
 613                  */
 614                 pattern = pst->pattern;
 615
 616                 if (pst->terminate)
 617                         break;
 618         }
 619
 620         /* Skip trailing place-holders */
 621         pattern = npc_parse_skip_void_and_any_items(pattern);
 622
 623         /* Are there more items than what we can handle? */
 624         if (pattern->type != ROC_NPC_ITEM_TYPE_END)
 625                 return NPC_ERR_PATTERN_NOTSUP;
 626
 627         return 0;
 628 }
 629
 630 static int
 631 npc_parse_attr(struct npc *npc, const struct roc_npc_attr *attr,
 632                struct roc_npc_flow *flow)
 633 {
 634         if (attr == NULL)
 635                 return NPC_ERR_PARAM;
 636         else if (attr->priority >= npc->flow_max_priority)
 637                 return NPC_ERR_PARAM;
 638         else if ((!attr->egress && !attr->ingress) ||
 639                  (attr->egress && attr->ingress))
 640                 return NPC_ERR_PARAM;
 641
 642         if (attr->ingress)
 643                 flow->nix_intf = ROC_NPC_INTF_RX;
 644         else
 645                 flow->nix_intf = ROC_NPC_INTF_TX;
 646
 647         flow->priority = attr->priority;
 648         return 0;
 649 }
 650
 651 static int
 652 npc_parse_rule(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 653                const struct roc_npc_item_info pattern[],
 654                const struct roc_npc_action actions[], struct roc_npc_flow *flow,
 655                struct npc_parse_state *pst)
 656 {
 657         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 658         int err;
 659
 660         /* Check attr */
 661         err = npc_parse_attr(npc, attr, flow);
 662         if (err)
 663                 return err;
 664
 665         /* Check pattern */
 666         err = npc_parse_pattern(npc, pattern, flow, pst);
 667         if (err)
 668                 return err;
 669
 670         /* Check action */
 671         err = npc_parse_actions(roc_npc, attr, actions, flow);
 672         if (err)
 673                 return err;
 674         return 0;
 675 }
 676
 677 int
 678 roc_npc_flow_parse(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
 679                    const struct roc_npc_item_info pattern[],
 680                    const struct roc_npc_action actions[],
 681                    struct roc_npc_flow *flow)
 682 {
 683         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 684         struct npc_parse_state parse_state = {0};
 685         int rc;
 686
 687         rc = npc_parse_rule(roc_npc, attr, pattern, actions, flow,
 688                             &parse_state);
 689         if (rc)
 690                 return rc;
 691
 692         parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
 693
 694         return npc_program_mcam(npc, &parse_state, 0);
 695 }
 696
 697 int
 698 npc_rss_free_grp_get(struct npc *npc, uint32_t *pos)
 699 {
 700         struct plt_bitmap *bmap = npc->rss_grp_entries;
 701
 702         for (*pos = 0; *pos < ROC_NIX_RSS_GRPS; ++*pos) {
 703                 if (!plt_bitmap_get(bmap, *pos))
 704                         break;
 705         }
 706         return *pos < ROC_NIX_RSS_GRPS ? 0 : -1;
 707 }
 708
 709 int
 710 npc_rss_action_configure(struct roc_npc *roc_npc,
 711                          const struct roc_npc_action_rss *rss, uint8_t *alg_idx,
 712                          uint32_t *rss_grp, uint32_t mcam_id)
 713 {
 714         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
 715         struct roc_nix *roc_nix = roc_npc->roc_nix;
 716         struct nix *nix = roc_nix_to_nix_priv(roc_nix);
 717         uint32_t flowkey_cfg, rss_grp_idx, i, rem;
 718         uint8_t key[ROC_NIX_RSS_KEY_LEN];
 719         const uint8_t *key_ptr;
 720         uint8_t flowkey_algx;
 721         uint16_t *reta;
 722         int rc;
 723
 724         rc = npc_rss_free_grp_get(npc, &rss_grp_idx);
 725         /* RSS group :0 is not usable for flow rss action */
 726         if (rc < 0 || rss_grp_idx == 0)
 727                 return -ENOSPC;
 728
 729         for (i = 0; i < rss->queue_num; i++) {
 730                 if (rss->queue[i] >= nix->nb_rx_queues) {
 731                         plt_err("queue id > max number of queues");
 732                         return -EINVAL;
 733                 }
 734         }
 735
 736         *rss_grp = rss_grp_idx;
 737
 738         if (rss->key == NULL) {
 739                 roc_nix_rss_key_default_fill(roc_nix, key);
 740                 key_ptr = key;
 741         } else {
 742                 key_ptr = rss->key;
 743         }
 744
 745         roc_nix_rss_key_set(roc_nix, key_ptr);
 746
 747         /* If queue count passed in the rss action is less than
 748          * HW configured reta size, replicate rss action reta
 749          * across HW reta table.
 750          */
 751         reta = nix->reta[rss_grp_idx];
 752
 753         if (rss->queue_num > nix->reta_sz) {
 754                 plt_err("too many queues for RSS context");
 755                 return -ENOTSUP;
 756         }
 757
 758         for (i = 0; i < (nix->reta_sz / rss->queue_num); i++)
 759                 memcpy(reta + i * rss->queue_num, rss->queue,
 760                        sizeof(uint16_t) * rss->queue_num);
 761
 762         rem = nix->reta_sz % rss->queue_num;
 763         if (rem)
 764                 memcpy(&reta[i * rss->queue_num], rss->queue,
 765                        rem * sizeof(uint16_t));
 766
 767         rc = roc_nix_rss_reta_set(roc_nix, *rss_grp, reta);
 768         if (rc) {
 769                 plt_err("Failed to init rss table rc = %d", rc);
 770                 return rc;
 771         }
 772
 773         flowkey_cfg = roc_npc->flowkey_cfg_state;
 774
 775         rc = roc_nix_rss_flowkey_set(roc_nix, &flowkey_algx, flowkey_cfg,
 776                                      *rss_grp, mcam_id);
 777         if (rc) {
 778                 plt_err("Failed to set rss hash function rc = %d", rc);
 779                 return rc;
 780         }
 781
 782         *alg_idx = flowkey_algx;
 783
 784         plt_bitmap_set(npc->rss_grp_entries, *rss_grp);
 785
 786         return 0;
 787 }
 788
 789 int
 790 npc_rss_action_program(struct roc_npc *roc_npc,
 791                        const struct roc_npc_action actions[],
 792                        struct roc_npc_flow *flow)
 793 {
 794         const struct roc_npc_action_rss *rss;
 795         uint32_t rss_grp;
 796         uint8_t alg_idx;
 797         int rc;
 798
 799         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
 800                 if (actions->type == ROC_NPC_ACTION_TYPE_RSS) {
 801                         rss = (const struct roc_npc_action_rss *)actions->conf;
 802                         rc = npc_rss_action_configure(roc_npc, rss, &alg_idx,
 803                                                       &rss_grp, flow->mcam_id);
 804                         if (rc)
 805                                 return rc;
 806
 807                         flow->npc_action &= (~(0xfULL));
 808                         flow->npc_action |= NIX_RX_ACTIONOP_RSS;
 809                         flow->npc_action |=
 810                                 ((uint64_t)(alg_idx & NPC_RSS_ACT_ALG_MASK)
 811                                  << NPC_RSS_ACT_ALG_OFFSET) |
 812                                 ((uint64_t)(rss_grp & NPC_RSS_ACT_GRP_MASK)
 813                                  << NPC_RSS_ACT_GRP_OFFSET);
 814                         break;
 815                 }
 816         }
 817         return 0;
 818 }
 819
 820 static int
 821 npc_vtag_cfg_delete(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
 822 {
 823         struct roc_nix *roc_nix = roc_npc->roc_nix;
 824         struct nix_vtag_config *vtag_cfg;
 825         struct nix_vtag_config_rsp *rsp;
 826         struct mbox *mbox;
 827         struct nix *nix;
 828         int rc = 0;
 829
 830         union {
 831                 uint64_t reg;
 832                 struct nix_tx_vtag_action_s act;
 833         } tx_vtag_action;
 834
 835         nix = roc_nix_to_nix_priv(roc_nix);
 836         mbox = (&nix->dev)->mbox;
 837
 838         tx_vtag_action.reg = flow->vtag_action;
 839         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
 840
 841         if (vtag_cfg == NULL)
 842                 return -ENOSPC;
 843
 844         vtag_cfg->cfg_type = VTAG_TX;
 845         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
 846         vtag_cfg->tx.vtag0_idx = tx_vtag_action.act.vtag0_def;
 847         vtag_cfg->tx.free_vtag0 = true;
 848
 849         if (flow->vtag_insert_count == 2) {
 850                 vtag_cfg->tx.vtag1_idx = tx_vtag_action.act.vtag1_def;
 851                 vtag_cfg->tx.free_vtag1 = true;
 852         }
 853
 854         rc = mbox_process_msg(mbox, (void *)&rsp);
 855         if (rc)
 856                 return rc;
 857
 858         return 0;
 859 }
 860
 861 static int
 862 npc_vtag_insert_action_parse(const struct roc_npc_action actions[],
 863                              struct roc_npc_flow *flow,
 864                              struct npc_action_vtag_info *vlan_info,
 865                              int *parsed_cnt)
 866 {
 867         bool vlan_id_found = false, ethtype_found = false, pcp_found = false;
 868         int count = 0;
 869
 870         *parsed_cnt = 0;
 871
 872         /* This function parses parameters of one VLAN. When a parameter is
 873          * found repeated, it treats it as the end of first VLAN's parameters
 874          * and returns. The caller calls again to parse the parameters of the
 875          * second VLAN.
 876          */
 877
 878         for (; count < NPC_ACTION_MAX_VLAN_PARAMS; count++, actions++) {
 879                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_INSERT) {
 880                         if (vlan_id_found)
 881                                 return 0;
 882
 883                         const struct roc_npc_action_of_set_vlan_vid *vtag =
 884                                 (const struct roc_npc_action_of_set_vlan_vid *)
 885                                         actions->conf;
 886
 887                         vlan_info->vlan_id = plt_be_to_cpu_16(vtag->vlan_vid);
 888
 889                         if (vlan_info->vlan_id > 0xfff) {
 890                                 plt_err("Invalid vlan_id for set vlan action");
 891                                 return -EINVAL;
 892                         }
 893
 894                         flow->vtag_insert_enabled = true;
 895                         (*parsed_cnt)++;
 896                         vlan_id_found = true;
 897                 } else if (actions->type ==
 898                            ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT) {
 899                         if (ethtype_found)
 900                                 return 0;
 901
 902                         const struct roc_npc_action_of_push_vlan *ethtype =
 903                                 (const struct roc_npc_action_of_push_vlan *)
 904                                         actions->conf;
 905                         vlan_info->vlan_ethtype =
 906                                 plt_be_to_cpu_16(ethtype->ethertype);
 907                         if (vlan_info->vlan_ethtype != ROC_ETHER_TYPE_VLAN &&
 908                             vlan_info->vlan_ethtype != ROC_ETHER_TYPE_QINQ) {
 909                                 plt_err("Invalid ethtype specified for push"
 910                                         " vlan action");
 911                                 return -EINVAL;
 912                         }
 913                         flow->vtag_insert_enabled = true;
 914                         (*parsed_cnt)++;
 915                         ethtype_found = true;
 916                 } else if (actions->type ==
 917                            ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
 918                         if (pcp_found)
 919                                 return 0;
 920                         const struct roc_npc_action_of_set_vlan_pcp *pcp =
 921                                 (const struct roc_npc_action_of_set_vlan_pcp *)
 922                                         actions->conf;
 923                         vlan_info->vlan_pcp = pcp->vlan_pcp;
 924                         if (vlan_info->vlan_pcp > 0x7) {
 925                                 plt_err("Invalid PCP value for pcp action");
 926                                 return -EINVAL;
 927                         }
 928                         flow->vtag_insert_enabled = true;
 929                         (*parsed_cnt)++;
 930                         pcp_found = true;
 931                 } else {
 932                         return 0;
 933                 }
 934         }
 935
 936         return 0;
 937 }
 938
 939 static int
 940 npc_vtag_insert_action_configure(struct mbox *mbox, struct roc_npc_flow *flow,
 941                                  struct npc_action_vtag_info *vlan_info)
 942 {
 943         struct nix_vtag_config *vtag_cfg;
 944         struct nix_vtag_config_rsp *rsp;
 945         int rc = 0;
 946
 947         union {
 948                 uint64_t reg;
 949                 struct nix_tx_vtag_action_s act;
 950         } tx_vtag_action;
 951
 952         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
 953
 954         if (vtag_cfg == NULL)
 955                 return -ENOSPC;
 956
 957         vtag_cfg->cfg_type = VTAG_TX;
 958         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
 959         vtag_cfg->tx.vtag0 =
 960                 (((uint32_t)vlan_info[0].vlan_ethtype << 16) |
 961                  (vlan_info[0].vlan_pcp << 13) | vlan_info[0].vlan_id);
 962
 963         vtag_cfg->tx.cfg_vtag0 = 1;
 964
 965         if (flow->vtag_insert_count == 2) {
 966                 vtag_cfg->tx.vtag1 =
 967                         (((uint32_t)vlan_info[1].vlan_ethtype << 16) |
 968                          (vlan_info[1].vlan_pcp << 13) | vlan_info[1].vlan_id);
 969
 970                 vtag_cfg->tx.cfg_vtag1 = 1;
 971         }
 972
 973         rc = mbox_process_msg(mbox, (void *)&rsp);
 974         if (rc)
 975                 return rc;
 976
 977         if (rsp->vtag0_idx < 0 ||
 978             ((flow->vtag_insert_count == 2) && (rsp->vtag1_idx < 0))) {
 979                 plt_err("Failed to config TX VTAG action");
 980                 return -EINVAL;
 981         }
 982
 983         tx_vtag_action.reg = 0;
 984         tx_vtag_action.act.vtag0_def = rsp->vtag0_idx;
 985         tx_vtag_action.act.vtag0_lid = NPC_LID_LA;
 986         tx_vtag_action.act.vtag0_op = NIX_TX_VTAGOP_INSERT;
 987         tx_vtag_action.act.vtag0_relptr = NIX_TX_VTAGACTION_VTAG0_RELPTR;
 988
 989         if (flow->vtag_insert_count == 2) {
 990                 tx_vtag_action.act.vtag1_def = rsp->vtag1_idx;
 991                 tx_vtag_action.act.vtag1_lid = NPC_LID_LA;
 992                 tx_vtag_action.act.vtag1_op = NIX_TX_VTAGOP_INSERT;
 993                 /* NIX_TX_VTAG_ACTION_S
 994                  *  If Vtag 0 is inserted, hardware adjusts the Vtag 1 byte
 995                  *  offset accordingly. Thus, if the two offsets are equal in
 996                  *  the structure, hardware inserts Vtag 1 immediately after
 997                  *  Vtag 0 in the packet.
 998                  */
 999                 tx_vtag_action.act.vtag1_relptr =
1000                         NIX_TX_VTAGACTION_VTAG0_RELPTR;
1001         }
1002
1003         flow->vtag_action = tx_vtag_action.reg;
1004
1005         return 0;
1006 }
1007
1008 static int
1009 npc_vtag_strip_action_configure(struct mbox *mbox,
1010                                 const struct roc_npc_action actions[],
1011                                 struct roc_npc_flow *flow, int *strip_cnt)
1012 {
1013         struct nix_vtag_config *vtag_cfg;
1014         uint64_t rx_vtag_action = 0;
1015         int count = 0, rc = 0;
1016
1017         *strip_cnt = 0;
1018
1019         for (; count < NPC_ACTION_MAX_VLANS_STRIPPED; count++, actions++) {
1020                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_STRIP)
1021                         (*strip_cnt)++;
1022         }
1023
1024         vtag_cfg = mbox_alloc_msg_nix_vtag_cfg(mbox);
1025
1026         if (vtag_cfg == NULL)
1027                 return -ENOSPC;
1028
1029         vtag_cfg->cfg_type = VTAG_RX;
1030         vtag_cfg->rx.strip_vtag = 1;
1031         /* Always capture */
1032         vtag_cfg->rx.capture_vtag = 1;
1033         vtag_cfg->vtag_size = NIX_VTAGSIZE_T4;
1034         vtag_cfg->rx.vtag_type = 0;
1035
1036         rc = mbox_process(mbox);
1037         if (rc)
1038                 return rc;
1039
1040         rx_vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 15);
1041         rx_vtag_action |= ((uint64_t)NPC_LID_LB << 8);
1042         rx_vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR;
1043
1044         if (*strip_cnt == 2) {
1045                 rx_vtag_action |= (NIX_RX_VTAGACTION_VTAG_VALID << 47);
1046                 rx_vtag_action |= ((uint64_t)NPC_LID_LB << 40);
1047                 rx_vtag_action |= NIX_RX_VTAGACTION_VTAG0_RELPTR << 32;
1048         }
1049         flow->vtag_action = rx_vtag_action;
1050
1051         return 0;
1052 }
1053
1054 static int
1055 npc_vtag_action_program(struct roc_npc *roc_npc,
1056                         const struct roc_npc_action actions[],
1057                         struct roc_npc_flow *flow)
1058 {
1059         bool vlan_strip_parsed = false, vlan_insert_parsed = false;
1060         const struct roc_npc_action *insert_actions;
1061         struct roc_nix *roc_nix = roc_npc->roc_nix;
1062         struct npc_action_vtag_info vlan_info[2];
1063         int parsed_cnt = 0, strip_cnt = 0;
1064         int tot_vlan_params = 0;
1065         struct mbox *mbox;
1066         struct nix *nix;
1067         int i, rc;
1068
1069         nix = roc_nix_to_nix_priv(roc_nix);
1070         mbox = (&nix->dev)->mbox;
1071
1072         memset(vlan_info, 0, sizeof(vlan_info));
1073
1074         flow->vtag_insert_enabled = false;
1075
1076         for (; actions->type != ROC_NPC_ACTION_TYPE_END; actions++) {
1077                 if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_STRIP) {
1078                         if (vlan_strip_parsed) {
1079                                 plt_err("Incorrect VLAN strip actions");
1080                                 return -EINVAL;
1081                         }
1082                         rc = npc_vtag_strip_action_configure(mbox, actions,
1083                                                              flow, &strip_cnt);
1084                         if (rc)
1085                                 return rc;
1086
1087                         if (strip_cnt == 2)
1088                                 actions++;
1089
1090                         vlan_strip_parsed = true;
1091                 } else if (actions->type == ROC_NPC_ACTION_TYPE_VLAN_INSERT ||
1092                            actions->type ==
1093                                    ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT ||
1094                            actions->type ==
1095                                    ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT) {
1096                         if (vlan_insert_parsed) {
1097                                 plt_err("Incorrect VLAN insert actions");
1098                                 return -EINVAL;
1099                         }
1100
1101                         insert_actions = actions;
1102
1103                         for (i = 0; i < 2; i++) {
1104                                 rc = npc_vtag_insert_action_parse(
1105                                         insert_actions, flow, &vlan_info[i],
1106                                         &parsed_cnt);
1107
1108                                 if (rc)
1109                                         return rc;
1110
1111                                 if (parsed_cnt) {
1112                                         insert_actions += parsed_cnt;
1113                                         tot_vlan_params += parsed_cnt;
1114                                         flow->vtag_insert_count++;
1115                                 }
1116                         }
1117                         actions += tot_vlan_params - 1;
1118                         vlan_insert_parsed = true;
1119                 }
1120         }
1121
1122         if (flow->vtag_insert_enabled) {
1123                 rc = npc_vtag_insert_action_configure(mbox, flow, vlan_info);
1124
1125                 if (rc)
1126                         return rc;
1127         }
1128         return 0;
1129 }
1130
1131 struct roc_npc_flow *
1132 roc_npc_flow_create(struct roc_npc *roc_npc, const struct roc_npc_attr *attr,
1133                     const struct roc_npc_item_info pattern[],
1134                     const struct roc_npc_action actions[], int *errcode)
1135 {
1136         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1137         struct roc_npc_flow *flow, *flow_iter;
1138         struct npc_parse_state parse_state;
1139         struct npc_flow_list *list;
1140         int rc;
1141
1142         npc->channel = roc_npc->channel;
1143         npc->is_sdp_link = roc_nix_is_sdp(roc_npc->roc_nix);
1144         if (npc->is_sdp_link) {
1145                 if (roc_npc->is_sdp_mask_set) {
1146                         npc->sdp_channel = roc_npc->sdp_channel;
1147                         npc->sdp_channel_mask = roc_npc->sdp_channel_mask;
1148                 } else {
1149                         /* By default set the channel and mask to cover
1150                          * the whole SDP channel range.
1151                          */
1152                         npc->sdp_channel = (uint16_t)NIX_CHAN_SDP_CH_START;
1153                         npc->sdp_channel_mask = (uint16_t)NIX_CHAN_SDP_CH_START;
1154                 }
1155         }
1156
1157         flow = plt_zmalloc(sizeof(*flow), 0);
1158         if (flow == NULL) {
1159                 *errcode = NPC_ERR_NO_MEM;
1160                 return NULL;
1161         }
1162         memset(flow, 0, sizeof(*flow));
1163
1164         rc = npc_parse_rule(roc_npc, attr, pattern, actions, flow,
1165                             &parse_state);
1166         if (rc != 0) {
1167                 *errcode = rc;
1168                 goto err_exit;
1169         }
1170
1171         rc = npc_vtag_action_program(roc_npc, actions, flow);
1172         if (rc != 0) {
1173                 *errcode = rc;
1174                 goto err_exit;
1175         }
1176
1177         parse_state.is_vf = !roc_nix_is_pf(roc_npc->roc_nix);
1178
1179         rc = npc_program_mcam(npc, &parse_state, 1);
1180         if (rc != 0) {
1181                 *errcode = rc;
1182                 goto err_exit;
1183         }
1184
1185         rc = npc_rss_action_program(roc_npc, actions, flow);
1186         if (rc != 0) {
1187                 *errcode = rc;
1188                 goto set_rss_failed;
1189         }
1190
1191         list = &npc->flow_list[flow->priority];
1192         /* List in ascending order of mcam entries */
1193         TAILQ_FOREACH(flow_iter, list, next) {
1194                 if (flow_iter->mcam_id > flow->mcam_id) {
1195                         TAILQ_INSERT_BEFORE(flow_iter, flow, next);
1196                         return flow;
1197                 }
1198         }
1199
1200         TAILQ_INSERT_TAIL(list, flow, next);
1201         return flow;
1202
1203 set_rss_failed:
1204         rc = npc_mcam_free_entry(npc, flow->mcam_id);
1205         if (rc != 0) {
1206                 *errcode = rc;
1207                 plt_free(flow);
1208                 return NULL;
1209         }
1210 err_exit:
1211         plt_free(flow);
1212         return NULL;
1213 }
1214
1215 int
1216 npc_rss_group_free(struct npc *npc, struct roc_npc_flow *flow)
1217 {
1218         uint32_t rss_grp;
1219
1220         if ((flow->npc_action & 0xF) == NIX_RX_ACTIONOP_RSS) {
1221                 rss_grp = (flow->npc_action >> NPC_RSS_ACT_GRP_OFFSET) &
1222                           NPC_RSS_ACT_GRP_MASK;
1223                 if (rss_grp == 0 || rss_grp >= npc->rss_grps)
1224                         return -EINVAL;
1225
1226                 plt_bitmap_clear(npc->rss_grp_entries, rss_grp);
1227         }
1228
1229         return 0;
1230 }
1231
1232 int
1233 roc_npc_flow_destroy(struct roc_npc *roc_npc, struct roc_npc_flow *flow)
1234 {
1235         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1236         int rc;
1237
1238         rc = npc_rss_group_free(npc, flow);
1239         if (rc != 0) {
1240                 plt_err("Failed to free rss action rc = %d", rc);
1241                 return rc;
1242         }
1243
1244         if (flow->vtag_insert_enabled) {
1245                 rc = npc_vtag_cfg_delete(roc_npc, flow);
1246                 if (rc != 0)
1247                         return rc;
1248         }
1249
1250         if (flow->ctr_id != NPC_COUNTER_NONE) {
1251                 rc = roc_npc_mcam_clear_counter(roc_npc, flow->ctr_id);
1252                 if (rc != 0)
1253                         return rc;
1254
1255                 rc = npc_mcam_free_counter(npc, flow->ctr_id);
1256                 if (rc != 0)
1257                         return rc;
1258         }
1259
1260         rc = npc_mcam_free_entry(npc, flow->mcam_id);
1261         if (rc != 0)
1262                 return rc;
1263
1264         TAILQ_REMOVE(&npc->flow_list[flow->priority], flow, next);
1265
1266         npc_delete_prio_list_entry(npc, flow);
1267
1268         plt_free(flow);
1269         return 0;
1270 }
1271
1272 void
1273 roc_npc_flow_dump(FILE *file, struct roc_npc *roc_npc)
1274 {
1275         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1276         struct roc_npc_flow *flow_iter;
1277         struct npc_flow_list *list;
1278         uint32_t max_prio, i;
1279
1280         max_prio = npc->flow_max_priority;
1281
1282         for (i = 0; i < max_prio; i++) {
1283                 list = &npc->flow_list[i];
1284
1285                 /* List in ascending order of mcam entries */
1286                 TAILQ_FOREACH(flow_iter, list, next) {
1287                         roc_npc_flow_mcam_dump(file, roc_npc, flow_iter);
1288                 }
1289         }
1290 }
1291
1292 int
1293 roc_npc_mcam_merge_base_steering_rule(struct roc_npc *roc_npc,
1294                                       struct roc_npc_flow *flow)
1295 {
1296         struct npc_mcam_read_base_rule_rsp *base_rule_rsp;
1297         struct npc *npc = roc_npc_to_npc_priv(roc_npc);
1298         struct mcam_entry *base_entry;
1299         int idx, rc;
1300
1301         if (roc_nix_is_pf(roc_npc->roc_nix))
1302                 return 0;
1303
1304         (void)mbox_alloc_msg_npc_read_base_steer_rule(npc->mbox);
1305         rc = mbox_process_msg(npc->mbox, (void *)&base_rule_rsp);
1306         if (rc) {
1307                 plt_err("Failed to fetch VF's base MCAM entry");
1308                 return rc;
1309         }
1310         base_entry = &base_rule_rsp->entry_data;
1311         for (idx = 0; idx < ROC_NPC_MAX_MCAM_WIDTH_DWORDS; idx++) {
1312                 flow->mcam_data[idx] |= base_entry->kw[idx];
1313                 flow->mcam_mask[idx] |= base_entry->kw_mask[idx];
1314         }
1315
1316         return 0;
1317 }