drivers/net/cnxk/cnxk_rte_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(C) 2021 Marvell.
   3  */
   4 #include <cnxk_rte_flow.h>
   5
   6 const struct cnxk_rte_flow_term_info term[] = {
   7         [RTE_FLOW_ITEM_TYPE_ETH] = {ROC_NPC_ITEM_TYPE_ETH,
   8                                     sizeof(struct rte_flow_item_eth)},
   9         [RTE_FLOW_ITEM_TYPE_VLAN] = {ROC_NPC_ITEM_TYPE_VLAN,
  10                                      sizeof(struct rte_flow_item_vlan)},
  11         [RTE_FLOW_ITEM_TYPE_E_TAG] = {ROC_NPC_ITEM_TYPE_E_TAG,
  12                                       sizeof(struct rte_flow_item_e_tag)},
  13         [RTE_FLOW_ITEM_TYPE_IPV4] = {ROC_NPC_ITEM_TYPE_IPV4,
  14                                      sizeof(struct rte_flow_item_ipv4)},
  15         [RTE_FLOW_ITEM_TYPE_IPV6] = {ROC_NPC_ITEM_TYPE_IPV6,
  16                                      sizeof(struct rte_flow_item_ipv6)},
  17         [RTE_FLOW_ITEM_TYPE_ARP_ETH_IPV4] = {
  18                         ROC_NPC_ITEM_TYPE_ARP_ETH_IPV4,
  19                         sizeof(struct rte_flow_item_arp_eth_ipv4)},
  20         [RTE_FLOW_ITEM_TYPE_MPLS] = {ROC_NPC_ITEM_TYPE_MPLS,
  21                                      sizeof(struct rte_flow_item_mpls)},
  22         [RTE_FLOW_ITEM_TYPE_ICMP] = {ROC_NPC_ITEM_TYPE_ICMP,
  23                                      sizeof(struct rte_flow_item_icmp)},
  24         [RTE_FLOW_ITEM_TYPE_UDP] = {ROC_NPC_ITEM_TYPE_UDP,
  25                                     sizeof(struct rte_flow_item_udp)},
  26         [RTE_FLOW_ITEM_TYPE_TCP] = {ROC_NPC_ITEM_TYPE_TCP,
  27                                     sizeof(struct rte_flow_item_tcp)},
  28         [RTE_FLOW_ITEM_TYPE_SCTP] = {ROC_NPC_ITEM_TYPE_SCTP,
  29                                      sizeof(struct rte_flow_item_sctp)},
  30         [RTE_FLOW_ITEM_TYPE_ESP] = {ROC_NPC_ITEM_TYPE_ESP,
  31                                     sizeof(struct rte_flow_item_esp)},
  32         [RTE_FLOW_ITEM_TYPE_GRE] = {ROC_NPC_ITEM_TYPE_GRE,
  33                                     sizeof(struct rte_flow_item_gre)},
  34         [RTE_FLOW_ITEM_TYPE_NVGRE] = {ROC_NPC_ITEM_TYPE_NVGRE,
  35                                       sizeof(struct rte_flow_item_nvgre)},
  36         [RTE_FLOW_ITEM_TYPE_VXLAN] = {ROC_NPC_ITEM_TYPE_VXLAN,
  37                                       sizeof(struct rte_flow_item_vxlan)},
  38         [RTE_FLOW_ITEM_TYPE_GTPC] = {ROC_NPC_ITEM_TYPE_GTPC,
  39                                      sizeof(struct rte_flow_item_gtp)},
  40         [RTE_FLOW_ITEM_TYPE_GTPU] = {ROC_NPC_ITEM_TYPE_GTPU,
  41                                      sizeof(struct rte_flow_item_gtp)},
  42         [RTE_FLOW_ITEM_TYPE_GENEVE] = {ROC_NPC_ITEM_TYPE_GENEVE,
  43                                        sizeof(struct rte_flow_item_geneve)},
  44         [RTE_FLOW_ITEM_TYPE_VXLAN_GPE] = {
  45                         ROC_NPC_ITEM_TYPE_VXLAN_GPE,
  46                         sizeof(struct rte_flow_item_vxlan_gpe)},
  47         [RTE_FLOW_ITEM_TYPE_IPV6_EXT] = {ROC_NPC_ITEM_TYPE_IPV6_EXT,
  48                                          sizeof(struct rte_flow_item_ipv6_ext)},
  49         [RTE_FLOW_ITEM_TYPE_VOID] = {ROC_NPC_ITEM_TYPE_VOID, 0},
  50         [RTE_FLOW_ITEM_TYPE_ANY] = {ROC_NPC_ITEM_TYPE_ANY, 0},
  51         [RTE_FLOW_ITEM_TYPE_GRE_KEY] = {ROC_NPC_ITEM_TYPE_GRE_KEY,
  52                                         sizeof(uint32_t)},
  53         [RTE_FLOW_ITEM_TYPE_HIGIG2] = {ROC_NPC_ITEM_TYPE_HIGIG2,
  54                                        sizeof(struct rte_flow_item_higig2_hdr)},
  55         [RTE_FLOW_ITEM_TYPE_RAW] = {ROC_NPC_ITEM_TYPE_RAW,
  56                                     sizeof(struct rte_flow_item_raw)}};
  57
  58 static int
  59 npc_rss_action_validate(struct rte_eth_dev *eth_dev,
  60                         const struct rte_flow_attr *attr,
  61                         const struct rte_flow_action *act)
  62 {
  63         const struct rte_flow_action_rss *rss;
  64
  65         rss = (const struct rte_flow_action_rss *)act->conf;
  66
  67         if (attr->egress) {
  68                 plt_err("No support of RSS in egress");
  69                 return -EINVAL;
  70         }
  71
  72         if (eth_dev->data->dev_conf.rxmode.mq_mode != ETH_MQ_RX_RSS) {
  73                 plt_err("multi-queue mode is disabled");
  74                 return -ENOTSUP;
  75         }
  76
  77         if (!rss || !rss->queue_num) {
  78                 plt_err("no valid queues");
  79                 return -EINVAL;
  80         }
  81
  82         if (rss->func != RTE_ETH_HASH_FUNCTION_DEFAULT) {
  83                 plt_err("non-default RSS hash functions are not supported");
  84                 return -ENOTSUP;
  85         }
  86
  87         if (rss->key_len && rss->key_len > ROC_NIX_RSS_KEY_LEN) {
  88                 plt_err("RSS hash key too large");
  89                 return -ENOTSUP;
  90         }
  91
  92         return 0;
  93 }
  94
  95 static void
  96 npc_rss_flowkey_get(struct cnxk_eth_dev *eth_dev,
  97                     const struct roc_npc_action *rss_action,
  98                     uint32_t *flowkey_cfg)
  99 {
 100         const struct roc_npc_action_rss *rss;
 101
 102         rss = (const struct roc_npc_action_rss *)rss_action->conf;
 103
 104         *flowkey_cfg = cnxk_rss_ethdev_to_nix(eth_dev, rss->types, rss->level);
 105 }
 106
 107 static int
 108 cnxk_map_actions(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 109                  const struct rte_flow_action actions[],
 110                  struct roc_npc_action in_actions[], uint32_t *flowkey_cfg)
 111 {
 112         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 113         const struct rte_flow_action_queue *act_q;
 114         int i = 0, rc = 0;
 115         int rq;
 116
 117         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 118                 switch (actions->type) {
 119                 case RTE_FLOW_ACTION_TYPE_VOID:
 120                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VOID;
 121                         break;
 122
 123                 case RTE_FLOW_ACTION_TYPE_MARK:
 124                         in_actions[i].type = ROC_NPC_ACTION_TYPE_MARK;
 125                         in_actions[i].conf = actions->conf;
 126                         break;
 127
 128                 case RTE_FLOW_ACTION_TYPE_FLAG:
 129                         in_actions[i].type = ROC_NPC_ACTION_TYPE_FLAG;
 130                         break;
 131
 132                 case RTE_FLOW_ACTION_TYPE_COUNT:
 133                         in_actions[i].type = ROC_NPC_ACTION_TYPE_COUNT;
 134                         break;
 135
 136                 case RTE_FLOW_ACTION_TYPE_DROP:
 137                         in_actions[i].type = ROC_NPC_ACTION_TYPE_DROP;
 138                         break;
 139
 140                 case RTE_FLOW_ACTION_TYPE_PF:
 141                         in_actions[i].type = ROC_NPC_ACTION_TYPE_PF;
 142                         break;
 143
 144                 case RTE_FLOW_ACTION_TYPE_VF:
 145                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VF;
 146                         in_actions[i].conf = actions->conf;
 147                         break;
 148
 149                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 150                         act_q = (const struct rte_flow_action_queue *)
 151                                         actions->conf;
 152                         rq = act_q->index;
 153                         if (rq >= eth_dev->data->nb_rx_queues) {
 154                                 plt_npc_dbg("Invalid queue index");
 155                                 goto err_exit;
 156                         }
 157                         in_actions[i].type = ROC_NPC_ACTION_TYPE_QUEUE;
 158                         in_actions[i].conf = actions->conf;
 159                         break;
 160
 161                 case RTE_FLOW_ACTION_TYPE_RSS:
 162                         rc = npc_rss_action_validate(eth_dev, attr, actions);
 163                         if (rc)
 164                                 goto err_exit;
 165                         in_actions[i].type = ROC_NPC_ACTION_TYPE_RSS;
 166                         in_actions[i].conf = actions->conf;
 167                         npc_rss_flowkey_get(dev, &in_actions[i], flowkey_cfg);
 168                         break;
 169
 170                 case RTE_FLOW_ACTION_TYPE_SECURITY:
 171                         in_actions[i].type = ROC_NPC_ACTION_TYPE_SEC;
 172                         break;
 173                 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
 174                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VLAN_STRIP;
 175                         break;
 176                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
 177                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VLAN_INSERT;
 178                         in_actions[i].conf = actions->conf;
 179                         break;
 180                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
 181                         in_actions[i].type =
 182                                 ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT;
 183                         in_actions[i].conf = actions->conf;
 184                         break;
 185                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
 186                         in_actions[i].type =
 187                                 ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT;
 188                         in_actions[i].conf = actions->conf;
 189                         break;
 190                 default:
 191                         plt_npc_dbg("Action is not supported = %d",
 192                                     actions->type);
 193                         goto err_exit;
 194                 }
 195                 i++;
 196         }
 197         in_actions[i].type = ROC_NPC_ACTION_TYPE_END;
 198         return 0;
 199
 200 err_exit:
 201         return -EINVAL;
 202 }
 203
 204 static int
 205 cnxk_map_flow_data(struct rte_eth_dev *eth_dev,
 206                    const struct rte_flow_attr *attr,
 207                    const struct rte_flow_item pattern[],
 208                    const struct rte_flow_action actions[],
 209                    struct roc_npc_attr *in_attr,
 210                    struct roc_npc_item_info in_pattern[],
 211                    struct roc_npc_action in_actions[], uint32_t *flowkey_cfg)
 212 {
 213         int i = 0;
 214
 215         in_attr->priority = attr->priority;
 216         in_attr->ingress = attr->ingress;
 217         in_attr->egress = attr->egress;
 218
 219         while (pattern->type != RTE_FLOW_ITEM_TYPE_END) {
 220                 in_pattern[i].spec = pattern->spec;
 221                 in_pattern[i].last = pattern->last;
 222                 in_pattern[i].mask = pattern->mask;
 223                 in_pattern[i].type = term[pattern->type].item_type;
 224                 in_pattern[i].size = term[pattern->type].item_size;
 225                 pattern++;
 226                 i++;
 227         }
 228         in_pattern[i].type = ROC_NPC_ITEM_TYPE_END;
 229
 230         return cnxk_map_actions(eth_dev, attr, actions, in_actions,
 231                                 flowkey_cfg);
 232 }
 233
 234 static int
 235 cnxk_flow_validate(struct rte_eth_dev *eth_dev,
 236                    const struct rte_flow_attr *attr,
 237                    const struct rte_flow_item pattern[],
 238                    const struct rte_flow_action actions[],
 239                    struct rte_flow_error *error)
 240 {
 241         struct roc_npc_item_info in_pattern[ROC_NPC_ITEM_TYPE_END + 1];
 242         struct roc_npc_action in_actions[ROC_NPC_MAX_ACTION_COUNT];
 243         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 244         struct roc_npc *npc = &dev->npc;
 245         struct roc_npc_attr in_attr;
 246         struct roc_npc_flow flow;
 247         uint32_t flowkey_cfg = 0;
 248         int rc;
 249
 250         memset(&flow, 0, sizeof(flow));
 251
 252         rc = cnxk_map_flow_data(eth_dev, attr, pattern, actions, &in_attr,
 253                                 in_pattern, in_actions, &flowkey_cfg);
 254         if (rc) {
 255                 rte_flow_error_set(error, 0, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 256                                    NULL, "Failed to map flow data");
 257                 return rc;
 258         }
 259
 260         return roc_npc_flow_parse(npc, &in_attr, in_pattern, in_actions, &flow);
 261 }
 262
 263 struct roc_npc_flow *
 264 cnxk_flow_create(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 265                  const struct rte_flow_item pattern[],
 266                  const struct rte_flow_action actions[],
 267                  struct rte_flow_error *error)
 268 {
 269         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 270         struct roc_npc_item_info in_pattern[ROC_NPC_ITEM_TYPE_END + 1];
 271         struct roc_npc_action in_actions[ROC_NPC_MAX_ACTION_COUNT];
 272         struct roc_npc *npc = &dev->npc;
 273         struct roc_npc_attr in_attr;
 274         struct roc_npc_flow *flow;
 275         int errcode = 0;
 276         int rc;
 277
 278         rc = cnxk_map_flow_data(eth_dev, attr, pattern, actions, &in_attr,
 279                                 in_pattern, in_actions,
 280                                 &npc->flowkey_cfg_state);
 281         if (rc) {
 282                 rte_flow_error_set(error, 0, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 283                                    NULL, "Failed to map flow data");
 284                 return NULL;
 285         }
 286
 287         flow = roc_npc_flow_create(npc, &in_attr, in_pattern, in_actions,
 288                                    &errcode);
 289         if (errcode != 0) {
 290                 rte_flow_error_set(error, errcode, errcode, NULL,
 291                                    roc_error_msg_get(errcode));
 292                 return NULL;
 293         }
 294
 295         return flow;
 296 }
 297
 298 int
 299 cnxk_flow_destroy(struct rte_eth_dev *eth_dev, struct roc_npc_flow *flow,
 300                   struct rte_flow_error *error)
 301 {
 302         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 303         struct roc_npc *npc = &dev->npc;
 304         int rc;
 305
 306         rc = roc_npc_flow_destroy(npc, flow);
 307         if (rc)
 308                 rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 309                                    NULL, "Flow Destroy failed");
 310         return rc;
 311 }
 312
 313 static int
 314 cnxk_flow_flush(struct rte_eth_dev *eth_dev, struct rte_flow_error *error)
 315 {
 316         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 317         struct roc_npc *npc = &dev->npc;
 318         int rc;
 319
 320         rc = roc_npc_mcam_free_all_resources(npc);
 321         if (rc) {
 322                 rte_flow_error_set(error, EIO, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 323                                    NULL, "Failed to flush filter");
 324                 return -rte_errno;
 325         }
 326
 327         return 0;
 328 }
 329
 330 static int
 331 cnxk_flow_query(struct rte_eth_dev *eth_dev, struct rte_flow *flow,
 332                 const struct rte_flow_action *action, void *data,
 333                 struct rte_flow_error *error)
 334 {
 335         struct roc_npc_flow *in_flow = (struct roc_npc_flow *)flow;
 336         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 337         struct roc_npc *npc = &dev->npc;
 338         struct rte_flow_query_count *query = data;
 339         const char *errmsg = NULL;
 340         int errcode = ENOTSUP;
 341         int rc;
 342
 343         if (action->type != RTE_FLOW_ACTION_TYPE_COUNT) {
 344                 errmsg = "Only COUNT is supported in query";
 345                 goto err_exit;
 346         }
 347
 348         if (in_flow->ctr_id == NPC_COUNTER_NONE) {
 349                 errmsg = "Counter is not available";
 350                 goto err_exit;
 351         }
 352
 353         rc = roc_npc_mcam_read_counter(npc, in_flow->ctr_id, &query->hits);
 354         if (rc != 0) {
 355                 errcode = EIO;
 356                 errmsg = "Error reading flow counter";
 357                 goto err_exit;
 358         }
 359         query->hits_set = 1;
 360         query->bytes_set = 0;
 361
 362         if (query->reset)
 363                 rc = roc_npc_mcam_clear_counter(npc, in_flow->ctr_id);
 364         if (rc != 0) {
 365                 errcode = EIO;
 366                 errmsg = "Error clearing flow counter";
 367                 goto err_exit;
 368         }
 369
 370         return 0;
 371
 372 err_exit:
 373         rte_flow_error_set(error, errcode, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 374                            NULL, errmsg);
 375         return -rte_errno;
 376 }
 377
 378 static int
 379 cnxk_flow_isolate(struct rte_eth_dev *eth_dev __rte_unused,
 380                   int enable __rte_unused, struct rte_flow_error *error)
 381 {
 382         /* If we support, we need to un-install the default mcam
 383          * entry for this port.
 384          */
 385
 386         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 387                            NULL, "Flow isolation not supported");
 388
 389         return -rte_errno;
 390 }
 391
 392 static int
 393 cnxk_flow_dev_dump(struct rte_eth_dev *eth_dev, struct rte_flow *flow,
 394                    FILE *file, struct rte_flow_error *error)
 395 {
 396         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 397         struct roc_npc *npc = &dev->npc;
 398
 399         if (file == NULL) {
 400                 rte_flow_error_set(error, EINVAL,
 401                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 402                                    "Invalid file");
 403                 return -rte_errno;
 404         }
 405
 406         if (flow != NULL) {
 407                 rte_flow_error_set(error, EINVAL,
 408                                    RTE_FLOW_ERROR_TYPE_HANDLE,
 409                                    NULL,
 410                                    "Invalid argument");
 411                 return -EINVAL;
 412         }
 413
 414         roc_npc_flow_dump(file, npc);
 415
 416         return 0;
 417 }
 418
 419 struct rte_flow_ops cnxk_flow_ops = {
 420         .validate = cnxk_flow_validate,
 421         .flush = cnxk_flow_flush,
 422         .query = cnxk_flow_query,
 423         .isolate = cnxk_flow_isolate,
 424         .dev_dump = cnxk_flow_dev_dump,
 425 };