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_port_id *port_act;
 114         const struct rte_flow_action_queue *act_q;
 115         struct roc_npc *roc_npc_src = &dev->npc;
 116         struct rte_eth_dev *portid_eth_dev;
 117         char if_name[RTE_ETH_NAME_MAX_LEN];
 118         struct cnxk_eth_dev *hw_dst;
 119         struct roc_npc *roc_npc_dst;
 120         int i = 0, rc = 0;
 121         int rq;
 122
 123         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 124                 switch (actions->type) {
 125                 case RTE_FLOW_ACTION_TYPE_VOID:
 126                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VOID;
 127                         break;
 128
 129                 case RTE_FLOW_ACTION_TYPE_MARK:
 130                         in_actions[i].type = ROC_NPC_ACTION_TYPE_MARK;
 131                         in_actions[i].conf = actions->conf;
 132                         break;
 133
 134                 case RTE_FLOW_ACTION_TYPE_FLAG:
 135                         in_actions[i].type = ROC_NPC_ACTION_TYPE_FLAG;
 136                         break;
 137
 138                 case RTE_FLOW_ACTION_TYPE_COUNT:
 139                         in_actions[i].type = ROC_NPC_ACTION_TYPE_COUNT;
 140                         break;
 141
 142                 case RTE_FLOW_ACTION_TYPE_DROP:
 143                         in_actions[i].type = ROC_NPC_ACTION_TYPE_DROP;
 144                         break;
 145
 146                 case RTE_FLOW_ACTION_TYPE_PF:
 147                         in_actions[i].type = ROC_NPC_ACTION_TYPE_PF;
 148                         break;
 149
 150                 case RTE_FLOW_ACTION_TYPE_VF:
 151                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VF;
 152                         in_actions[i].conf = actions->conf;
 153                         break;
 154
 155                 case RTE_FLOW_ACTION_TYPE_PORT_ID:
 156                         in_actions[i].type = ROC_NPC_ACTION_TYPE_PORT_ID;
 157                         in_actions[i].conf = actions->conf;
 158                         port_act = (const struct rte_flow_action_port_id *)
 159                                            actions->conf;
 160                         if (rte_eth_dev_get_name_by_port(port_act->id,
 161                                                          if_name)) {
 162                                 plt_err("Name not found for output port id");
 163                                 goto err_exit;
 164                         }
 165                         portid_eth_dev = rte_eth_dev_allocated(if_name);
 166                         if (!portid_eth_dev) {
 167                                 plt_err("eth_dev not found for output port id");
 168                                 goto err_exit;
 169                         }
 170                         if (strcmp(portid_eth_dev->device->driver->name,
 171                                    eth_dev->device->driver->name) != 0) {
 172                                 plt_err("Output port not under same driver");
 173                                 goto err_exit;
 174                         }
 175                         hw_dst = portid_eth_dev->data->dev_private;
 176                         roc_npc_dst = &hw_dst->npc;
 177
 178                         rc = roc_npc_validate_portid_action(roc_npc_src,
 179                                                             roc_npc_dst);
 180
 181                         if (rc)
 182                                 goto err_exit;
 183                         break;
 184
 185                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 186                         act_q = (const struct rte_flow_action_queue *)
 187                                         actions->conf;
 188                         rq = act_q->index;
 189                         if (rq >= eth_dev->data->nb_rx_queues) {
 190                                 plt_npc_dbg("Invalid queue index");
 191                                 goto err_exit;
 192                         }
 193                         in_actions[i].type = ROC_NPC_ACTION_TYPE_QUEUE;
 194                         in_actions[i].conf = actions->conf;
 195                         break;
 196
 197                 case RTE_FLOW_ACTION_TYPE_RSS:
 198                         rc = npc_rss_action_validate(eth_dev, attr, actions);
 199                         if (rc)
 200                                 goto err_exit;
 201                         in_actions[i].type = ROC_NPC_ACTION_TYPE_RSS;
 202                         in_actions[i].conf = actions->conf;
 203                         npc_rss_flowkey_get(dev, &in_actions[i], flowkey_cfg);
 204                         break;
 205
 206                 case RTE_FLOW_ACTION_TYPE_SECURITY:
 207                         in_actions[i].type = ROC_NPC_ACTION_TYPE_SEC;
 208                         break;
 209                 case RTE_FLOW_ACTION_TYPE_OF_POP_VLAN:
 210                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VLAN_STRIP;
 211                         break;
 212                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_VID:
 213                         in_actions[i].type = ROC_NPC_ACTION_TYPE_VLAN_INSERT;
 214                         in_actions[i].conf = actions->conf;
 215                         break;
 216                 case RTE_FLOW_ACTION_TYPE_OF_PUSH_VLAN:
 217                         in_actions[i].type =
 218                                 ROC_NPC_ACTION_TYPE_VLAN_ETHTYPE_INSERT;
 219                         in_actions[i].conf = actions->conf;
 220                         break;
 221                 case RTE_FLOW_ACTION_TYPE_OF_SET_VLAN_PCP:
 222                         in_actions[i].type =
 223                                 ROC_NPC_ACTION_TYPE_VLAN_PCP_INSERT;
 224                         in_actions[i].conf = actions->conf;
 225                         break;
 226                 case RTE_FLOW_ACTION_TYPE_METER:
 227                         in_actions[i].type = ROC_NPC_ACTION_TYPE_METER;
 228                         in_actions[i].conf = actions->conf;
 229                         break;
 230                 default:
 231                         plt_npc_dbg("Action is not supported = %d",
 232                                     actions->type);
 233                         goto err_exit;
 234                 }
 235                 i++;
 236         }
 237         in_actions[i].type = ROC_NPC_ACTION_TYPE_END;
 238         return 0;
 239
 240 err_exit:
 241         return -EINVAL;
 242 }
 243
 244 static int
 245 cnxk_map_flow_data(struct rte_eth_dev *eth_dev,
 246                    const struct rte_flow_attr *attr,
 247                    const struct rte_flow_item pattern[],
 248                    const struct rte_flow_action actions[],
 249                    struct roc_npc_attr *in_attr,
 250                    struct roc_npc_item_info in_pattern[],
 251                    struct roc_npc_action in_actions[], uint32_t *flowkey_cfg)
 252 {
 253         int i = 0;
 254
 255         in_attr->priority = attr->priority;
 256         in_attr->ingress = attr->ingress;
 257         in_attr->egress = attr->egress;
 258
 259         while (pattern->type != RTE_FLOW_ITEM_TYPE_END) {
 260                 in_pattern[i].spec = pattern->spec;
 261                 in_pattern[i].last = pattern->last;
 262                 in_pattern[i].mask = pattern->mask;
 263                 in_pattern[i].type = term[pattern->type].item_type;
 264                 in_pattern[i].size = term[pattern->type].item_size;
 265                 pattern++;
 266                 i++;
 267         }
 268         in_pattern[i].type = ROC_NPC_ITEM_TYPE_END;
 269
 270         return cnxk_map_actions(eth_dev, attr, actions, in_actions,
 271                                 flowkey_cfg);
 272 }
 273
 274 static int
 275 cnxk_flow_validate(struct rte_eth_dev *eth_dev,
 276                    const struct rte_flow_attr *attr,
 277                    const struct rte_flow_item pattern[],
 278                    const struct rte_flow_action actions[],
 279                    struct rte_flow_error *error)
 280 {
 281         struct roc_npc_item_info in_pattern[ROC_NPC_ITEM_TYPE_END + 1];
 282         struct roc_npc_action in_actions[ROC_NPC_MAX_ACTION_COUNT];
 283         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 284         struct roc_npc *npc = &dev->npc;
 285         struct roc_npc_attr in_attr;
 286         struct roc_npc_flow flow;
 287         uint32_t flowkey_cfg = 0;
 288         int rc;
 289
 290         memset(&flow, 0, sizeof(flow));
 291
 292         rc = cnxk_map_flow_data(eth_dev, attr, pattern, actions, &in_attr,
 293                                 in_pattern, in_actions, &flowkey_cfg);
 294         if (rc) {
 295                 rte_flow_error_set(error, 0, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 296                                    NULL, "Failed to map flow data");
 297                 return rc;
 298         }
 299
 300         return roc_npc_flow_parse(npc, &in_attr, in_pattern, in_actions, &flow);
 301 }
 302
 303 struct roc_npc_flow *
 304 cnxk_flow_create(struct rte_eth_dev *eth_dev, const struct rte_flow_attr *attr,
 305                  const struct rte_flow_item pattern[],
 306                  const struct rte_flow_action actions[],
 307                  struct rte_flow_error *error)
 308 {
 309         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 310         struct roc_npc_item_info in_pattern[ROC_NPC_ITEM_TYPE_END + 1];
 311         struct roc_npc_action in_actions[ROC_NPC_MAX_ACTION_COUNT];
 312         struct roc_npc *npc = &dev->npc;
 313         struct roc_npc_attr in_attr;
 314         struct roc_npc_flow *flow;
 315         int errcode = 0;
 316         int rc;
 317
 318         rc = cnxk_map_flow_data(eth_dev, attr, pattern, actions, &in_attr,
 319                                 in_pattern, in_actions,
 320                                 &npc->flowkey_cfg_state);
 321         if (rc) {
 322                 rte_flow_error_set(error, 0, RTE_FLOW_ERROR_TYPE_ACTION_NUM,
 323                                    NULL, "Failed to map flow data");
 324                 return NULL;
 325         }
 326
 327         flow = roc_npc_flow_create(npc, &in_attr, in_pattern, in_actions,
 328                                    &errcode);
 329         if (errcode != 0) {
 330                 rte_flow_error_set(error, errcode, errcode, NULL,
 331                                    roc_error_msg_get(errcode));
 332                 return NULL;
 333         }
 334
 335         return flow;
 336 }
 337
 338 int
 339 cnxk_flow_destroy(struct rte_eth_dev *eth_dev, struct roc_npc_flow *flow,
 340                   struct rte_flow_error *error)
 341 {
 342         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 343         struct roc_npc *npc = &dev->npc;
 344         int rc;
 345
 346         rc = roc_npc_flow_destroy(npc, flow);
 347         if (rc)
 348                 rte_flow_error_set(error, rc, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 349                                    NULL, "Flow Destroy failed");
 350         return rc;
 351 }
 352
 353 static int
 354 cnxk_flow_flush(struct rte_eth_dev *eth_dev, struct rte_flow_error *error)
 355 {
 356         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 357         struct roc_npc *npc = &dev->npc;
 358         int rc;
 359
 360         rc = roc_npc_mcam_free_all_resources(npc);
 361         if (rc) {
 362                 rte_flow_error_set(error, EIO, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 363                                    NULL, "Failed to flush filter");
 364                 return -rte_errno;
 365         }
 366
 367         return 0;
 368 }
 369
 370 static int
 371 cnxk_flow_query(struct rte_eth_dev *eth_dev, struct rte_flow *flow,
 372                 const struct rte_flow_action *action, void *data,
 373                 struct rte_flow_error *error)
 374 {
 375         struct roc_npc_flow *in_flow = (struct roc_npc_flow *)flow;
 376         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 377         struct roc_npc *npc = &dev->npc;
 378         struct rte_flow_query_count *query = data;
 379         const char *errmsg = NULL;
 380         int errcode = ENOTSUP;
 381         int rc;
 382
 383         if (action->type != RTE_FLOW_ACTION_TYPE_COUNT) {
 384                 errmsg = "Only COUNT is supported in query";
 385                 goto err_exit;
 386         }
 387
 388         if (in_flow->ctr_id == NPC_COUNTER_NONE) {
 389                 errmsg = "Counter is not available";
 390                 goto err_exit;
 391         }
 392
 393         rc = roc_npc_mcam_read_counter(npc, in_flow->ctr_id, &query->hits);
 394         if (rc != 0) {
 395                 errcode = EIO;
 396                 errmsg = "Error reading flow counter";
 397                 goto err_exit;
 398         }
 399         query->hits_set = 1;
 400         query->bytes_set = 0;
 401
 402         if (query->reset)
 403                 rc = roc_npc_mcam_clear_counter(npc, in_flow->ctr_id);
 404         if (rc != 0) {
 405                 errcode = EIO;
 406                 errmsg = "Error clearing flow counter";
 407                 goto err_exit;
 408         }
 409
 410         return 0;
 411
 412 err_exit:
 413         rte_flow_error_set(error, errcode, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 414                            NULL, errmsg);
 415         return -rte_errno;
 416 }
 417
 418 static int
 419 cnxk_flow_isolate(struct rte_eth_dev *eth_dev __rte_unused,
 420                   int enable __rte_unused, struct rte_flow_error *error)
 421 {
 422         /* If we support, we need to un-install the default mcam
 423          * entry for this port.
 424          */
 425
 426         rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 427                            NULL, "Flow isolation not supported");
 428
 429         return -rte_errno;
 430 }
 431
 432 static int
 433 cnxk_flow_dev_dump(struct rte_eth_dev *eth_dev, struct rte_flow *flow,
 434                    FILE *file, struct rte_flow_error *error)
 435 {
 436         struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
 437         struct roc_npc *npc = &dev->npc;
 438
 439         if (file == NULL) {
 440                 rte_flow_error_set(error, EINVAL,
 441                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 442                                    "Invalid file");
 443                 return -rte_errno;
 444         }
 445
 446         if (flow != NULL) {
 447                 rte_flow_error_set(error, EINVAL,
 448                                    RTE_FLOW_ERROR_TYPE_HANDLE,
 449                                    NULL,
 450                                    "Invalid argument");
 451                 return -EINVAL;
 452         }
 453
 454         roc_npc_flow_dump(file, npc);
 455
 456         return 0;
 457 }
 458
 459 struct rte_flow_ops cnxk_flow_ops = {
 460         .validate = cnxk_flow_validate,
 461         .flush = cnxk_flow_flush,
 462         .query = cnxk_flow_query,
 463         .isolate = cnxk_flow_isolate,
 464         .dev_dump = cnxk_flow_dev_dump,
 465 };