drivers/net/hns3/hns3_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2019 Hisilicon Limited.
   3  */
   4
   5 #include <stdbool.h>
   6 #include <sys/queue.h>
   7 #include <rte_flow_driver.h>
   8 #include <rte_io.h>
   9 #include <rte_malloc.h>
  10
  11 #include "hns3_ethdev.h"
  12 #include "hns3_logs.h"
  13
  14 /* Default default keys */
  15 static uint8_t hns3_hash_key[] = {
  16         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
  17         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
  18         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
  19         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
  20         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
  21 };
  22
  23 static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
  24 static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
  25
  26 /* Special Filter id for non-specific packet flagging. Don't change value */
  27 #define HNS3_MAX_FILTER_ID      0x0FFF
  28
  29 #define ETHER_TYPE_MASK         0xFFFF
  30 #define IPPROTO_MASK            0xFF
  31 #define TUNNEL_TYPE_MASK        0xFFFF
  32
  33 #define HNS3_TUNNEL_TYPE_VXLAN          0x12B5
  34 #define HNS3_TUNNEL_TYPE_VXLAN_GPE      0x12B6
  35 #define HNS3_TUNNEL_TYPE_GENEVE         0x17C1
  36 #define HNS3_TUNNEL_TYPE_NVGRE          0x6558
  37
  38 static enum rte_flow_item_type first_items[] = {
  39         RTE_FLOW_ITEM_TYPE_ETH,
  40         RTE_FLOW_ITEM_TYPE_IPV4,
  41         RTE_FLOW_ITEM_TYPE_IPV6,
  42         RTE_FLOW_ITEM_TYPE_TCP,
  43         RTE_FLOW_ITEM_TYPE_UDP,
  44         RTE_FLOW_ITEM_TYPE_SCTP,
  45         RTE_FLOW_ITEM_TYPE_ICMP,
  46         RTE_FLOW_ITEM_TYPE_NVGRE,
  47         RTE_FLOW_ITEM_TYPE_VXLAN,
  48         RTE_FLOW_ITEM_TYPE_GENEVE,
  49         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  50         RTE_FLOW_ITEM_TYPE_MPLS
  51 };
  52
  53 static enum rte_flow_item_type L2_next_items[] = {
  54         RTE_FLOW_ITEM_TYPE_VLAN,
  55         RTE_FLOW_ITEM_TYPE_IPV4,
  56         RTE_FLOW_ITEM_TYPE_IPV6
  57 };
  58
  59 static enum rte_flow_item_type L3_next_items[] = {
  60         RTE_FLOW_ITEM_TYPE_TCP,
  61         RTE_FLOW_ITEM_TYPE_UDP,
  62         RTE_FLOW_ITEM_TYPE_SCTP,
  63         RTE_FLOW_ITEM_TYPE_NVGRE,
  64         RTE_FLOW_ITEM_TYPE_ICMP
  65 };
  66
  67 static enum rte_flow_item_type L4_next_items[] = {
  68         RTE_FLOW_ITEM_TYPE_VXLAN,
  69         RTE_FLOW_ITEM_TYPE_GENEVE,
  70         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  71         RTE_FLOW_ITEM_TYPE_MPLS
  72 };
  73
  74 static enum rte_flow_item_type tunnel_next_items[] = {
  75         RTE_FLOW_ITEM_TYPE_ETH,
  76         RTE_FLOW_ITEM_TYPE_VLAN
  77 };
  78
  79 struct items_step_mngr {
  80         enum rte_flow_item_type *items;
  81         int count;
  82 };
  83
  84 static inline void
  85 net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
  86 {
  87         size_t i;
  88
  89         for (i = 0; i < len; i++)
  90                 dst[i] = rte_be_to_cpu_32(src[i]);
  91 }
  92
  93 static inline const struct rte_flow_action *
  94 find_rss_action(const struct rte_flow_action actions[])
  95 {
  96         const struct rte_flow_action *next = &actions[0];
  97
  98         for (; next->type != RTE_FLOW_ACTION_TYPE_END; next++) {
  99                 if (next->type == RTE_FLOW_ACTION_TYPE_RSS)
 100                         return next;
 101         }
 102         return NULL;
 103 }
 104
 105 static inline struct hns3_flow_counter *
 106 hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
 107 {
 108         struct hns3_adapter *hns = dev->data->dev_private;
 109         struct hns3_pf *pf = &hns->pf;
 110         struct hns3_flow_counter *cnt;
 111
 112         LIST_FOREACH(cnt, &pf->flow_counters, next) {
 113                 if (cnt->id == id)
 114                         return cnt;
 115         }
 116         return NULL;
 117 }
 118
 119 static int
 120 hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
 121                  struct rte_flow_error *error)
 122 {
 123         struct hns3_adapter *hns = dev->data->dev_private;
 124         struct hns3_pf *pf = &hns->pf;
 125         struct hns3_flow_counter *cnt;
 126
 127         cnt = hns3_counter_lookup(dev, id);
 128         if (cnt) {
 129                 if (!cnt->shared || cnt->shared != shared)
 130                         return rte_flow_error_set(error, ENOTSUP,
 131                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 132                                                   cnt,
 133                                                   "Counter id is used,shared flag not match");
 134                 cnt->ref_cnt++;
 135                 return 0;
 136         }
 137
 138         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
 139         if (cnt == NULL)
 140                 return rte_flow_error_set(error, ENOMEM,
 141                                           RTE_FLOW_ERROR_TYPE_ACTION, cnt,
 142                                           "Alloc mem for counter failed");
 143         cnt->id = id;
 144         cnt->shared = shared;
 145         cnt->ref_cnt = 1;
 146         cnt->hits = 0;
 147         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
 148         return 0;
 149 }
 150
 151 static int
 152 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
 153                    struct rte_flow_query_count *qc,
 154                    struct rte_flow_error *error)
 155 {
 156         struct hns3_adapter *hns = dev->data->dev_private;
 157         struct hns3_flow_counter *cnt;
 158         uint64_t value;
 159         int ret;
 160
 161         /* FDIR is available only in PF driver */
 162         if (hns->is_vf)
 163                 return rte_flow_error_set(error, ENOTSUP,
 164                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 165                                           "Fdir is not supported in VF");
 166         cnt = hns3_counter_lookup(dev, flow->counter_id);
 167         if (cnt == NULL)
 168                 return rte_flow_error_set(error, EINVAL,
 169                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 170                                           "Can't find counter id");
 171
 172         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
 173         if (ret) {
 174                 rte_flow_error_set(error, -ret,
 175                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 176                                    NULL, "Read counter fail.");
 177                 return ret;
 178         }
 179         qc->hits_set = 1;
 180         qc->hits = value;
 181
 182         return 0;
 183 }
 184
 185 static int
 186 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
 187 {
 188         struct hns3_adapter *hns = dev->data->dev_private;
 189         struct hns3_hw *hw = &hns->hw;
 190         struct hns3_flow_counter *cnt;
 191
 192         cnt = hns3_counter_lookup(dev, id);
 193         if (cnt == NULL) {
 194                 hns3_err(hw, "Can't find available counter to release");
 195                 return -EINVAL;
 196         }
 197         cnt->ref_cnt--;
 198         if (cnt->ref_cnt == 0) {
 199                 LIST_REMOVE(cnt, next);
 200                 rte_free(cnt);
 201         }
 202         return 0;
 203 }
 204
 205 static void
 206 hns3_counter_flush(struct rte_eth_dev *dev)
 207 {
 208         struct hns3_adapter *hns = dev->data->dev_private;
 209         struct hns3_pf *pf = &hns->pf;
 210         struct hns3_flow_counter *cnt_ptr;
 211
 212         cnt_ptr = LIST_FIRST(&pf->flow_counters);
 213         while (cnt_ptr) {
 214                 LIST_REMOVE(cnt_ptr, next);
 215                 rte_free(cnt_ptr);
 216                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
 217         }
 218 }
 219
 220 static int
 221 hns3_handle_action_queue(struct rte_eth_dev *dev,
 222                          const struct rte_flow_action *action,
 223                          struct hns3_fdir_rule *rule,
 224                          struct rte_flow_error *error)
 225 {
 226         struct hns3_adapter *hns = dev->data->dev_private;
 227         const struct rte_flow_action_queue *queue;
 228         struct hns3_hw *hw = &hns->hw;
 229
 230         queue = (const struct rte_flow_action_queue *)action->conf;
 231         if (queue->index >= hw->used_rx_queues) {
 232                 hns3_err(hw, "queue ID(%d) is greater than number of "
 233                           "available queue (%d) in driver.",
 234                           queue->index, hw->used_rx_queues);
 235                 return rte_flow_error_set(error, EINVAL,
 236                                           RTE_FLOW_ERROR_TYPE_ACTION, action,
 237                                           "Invalid queue ID in PF");
 238         }
 239
 240         rule->queue_id = queue->index;
 241         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 242         return 0;
 243 }
 244
 245 /*
 246  * Parse actions structure from the provided pattern.
 247  * The pattern is validated as the items are copied.
 248  *
 249  * @param actions[in]
 250  * @param rule[out]
 251  *   NIC specfilc actions derived from the actions.
 252  * @param error[out]
 253  */
 254 static int
 255 hns3_handle_actions(struct rte_eth_dev *dev,
 256                     const struct rte_flow_action actions[],
 257                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 258 {
 259         struct hns3_adapter *hns = dev->data->dev_private;
 260         const struct rte_flow_action_count *act_count;
 261         const struct rte_flow_action_mark *mark;
 262         struct hns3_pf *pf = &hns->pf;
 263         uint32_t counter_num;
 264         int ret;
 265
 266         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 267                 switch (actions->type) {
 268                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 269                         ret = hns3_handle_action_queue(dev, actions, rule,
 270                                                        error);
 271                         if (ret)
 272                                 return ret;
 273                         break;
 274                 case RTE_FLOW_ACTION_TYPE_DROP:
 275                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 276                         break;
 277                 case RTE_FLOW_ACTION_TYPE_MARK:
 278                         mark =
 279                             (const struct rte_flow_action_mark *)actions->conf;
 280                         if (mark->id >= HNS3_MAX_FILTER_ID)
 281                                 return rte_flow_error_set(error, EINVAL,
 282                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 283                                                      actions,
 284                                                      "Invalid Mark ID");
 285                         rule->fd_id = mark->id;
 286                         rule->flags |= HNS3_RULE_FLAG_FDID;
 287                         break;
 288                 case RTE_FLOW_ACTION_TYPE_FLAG:
 289                         rule->fd_id = HNS3_MAX_FILTER_ID;
 290                         rule->flags |= HNS3_RULE_FLAG_FDID;
 291                         break;
 292                 case RTE_FLOW_ACTION_TYPE_COUNT:
 293                         act_count =
 294                             (const struct rte_flow_action_count *)actions->conf;
 295                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 296                         if (act_count->id >= counter_num)
 297                                 return rte_flow_error_set(error, EINVAL,
 298                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 299                                                      actions,
 300                                                      "Invalid counter id");
 301                         rule->act_cnt = *act_count;
 302                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 303                         break;
 304                 case RTE_FLOW_ACTION_TYPE_VOID:
 305                         break;
 306                 default:
 307                         return rte_flow_error_set(error, ENOTSUP,
 308                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 309                                                   NULL, "Unsupported action");
 310                 }
 311         }
 312
 313         return 0;
 314 }
 315
 316 /* Parse to get the attr and action info of flow director rule. */
 317 static int
 318 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 319 {
 320         if (!attr->ingress)
 321                 return rte_flow_error_set(error, EINVAL,
 322                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 323                                           attr, "Ingress can't be zero");
 324         if (attr->egress)
 325                 return rte_flow_error_set(error, ENOTSUP,
 326                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 327                                           attr, "Not support egress");
 328         if (attr->transfer)
 329                 return rte_flow_error_set(error, ENOTSUP,
 330                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 331                                           attr, "No support for transfer");
 332         if (attr->priority)
 333                 return rte_flow_error_set(error, ENOTSUP,
 334                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 335                                           attr, "Not support priority");
 336         if (attr->group)
 337                 return rte_flow_error_set(error, ENOTSUP,
 338                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 339                                           attr, "Not support group");
 340         return 0;
 341 }
 342
 343 static int
 344 hns3_parse_eth(const struct rte_flow_item *item,
 345                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 346 {
 347         const struct rte_flow_item_eth *eth_spec;
 348         const struct rte_flow_item_eth *eth_mask;
 349
 350         if (item->spec == NULL && item->mask)
 351                 return rte_flow_error_set(error, EINVAL,
 352                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 353                                           "Can't configure FDIR with mask but without spec");
 354
 355         /* Only used to describe the protocol stack. */
 356         if (item->spec == NULL && item->mask == NULL)
 357                 return 0;
 358
 359         if (item->mask) {
 360                 eth_mask = item->mask;
 361                 if (eth_mask->type) {
 362                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 363                         rule->key_conf.mask.ether_type =
 364                             rte_be_to_cpu_16(eth_mask->type);
 365                 }
 366                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 367                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 368                         memcpy(rule->key_conf.mask.src_mac,
 369                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 370                 }
 371                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 372                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 373                         memcpy(rule->key_conf.mask.dst_mac,
 374                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 375                 }
 376         }
 377
 378         eth_spec = item->spec;
 379         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 380         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 381                RTE_ETHER_ADDR_LEN);
 382         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 383                RTE_ETHER_ADDR_LEN);
 384         return 0;
 385 }
 386
 387 static int
 388 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 389                 struct rte_flow_error *error)
 390 {
 391         const struct rte_flow_item_vlan *vlan_spec;
 392         const struct rte_flow_item_vlan *vlan_mask;
 393
 394         if (item->spec == NULL && item->mask)
 395                 return rte_flow_error_set(error, EINVAL,
 396                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 397                                           "Can't configure FDIR with mask but without spec");
 398
 399         rule->key_conf.vlan_num++;
 400         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 401                 return rte_flow_error_set(error, EINVAL,
 402                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 403                                           "Vlan_num is more than 2");
 404
 405         /* Only used to describe the protocol stack. */
 406         if (item->spec == NULL && item->mask == NULL)
 407                 return 0;
 408
 409         if (item->mask) {
 410                 vlan_mask = item->mask;
 411                 if (vlan_mask->tci) {
 412                         if (rule->key_conf.vlan_num == 1) {
 413                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 414                                              1);
 415                                 rule->key_conf.mask.vlan_tag1 =
 416                                     rte_be_to_cpu_16(vlan_mask->tci);
 417                         } else {
 418                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 419                                              1);
 420                                 rule->key_conf.mask.vlan_tag2 =
 421                                     rte_be_to_cpu_16(vlan_mask->tci);
 422                         }
 423                 }
 424         }
 425
 426         vlan_spec = item->spec;
 427         if (rule->key_conf.vlan_num == 1)
 428                 rule->key_conf.spec.vlan_tag1 =
 429                     rte_be_to_cpu_16(vlan_spec->tci);
 430         else
 431                 rule->key_conf.spec.vlan_tag2 =
 432                     rte_be_to_cpu_16(vlan_spec->tci);
 433         return 0;
 434 }
 435
 436 static int
 437 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 438                 struct rte_flow_error *error)
 439 {
 440         const struct rte_flow_item_ipv4 *ipv4_spec;
 441         const struct rte_flow_item_ipv4 *ipv4_mask;
 442
 443         if (item->spec == NULL && item->mask)
 444                 return rte_flow_error_set(error, EINVAL,
 445                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 446                                           "Can't configure FDIR with mask but without spec");
 447
 448         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 449         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 450         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 451         /* Only used to describe the protocol stack. */
 452         if (item->spec == NULL && item->mask == NULL)
 453                 return 0;
 454
 455         if (item->mask) {
 456                 ipv4_mask = item->mask;
 457
 458                 if (ipv4_mask->hdr.total_length ||
 459                     ipv4_mask->hdr.packet_id ||
 460                     ipv4_mask->hdr.fragment_offset ||
 461                     ipv4_mask->hdr.time_to_live ||
 462                     ipv4_mask->hdr.hdr_checksum) {
 463                         return rte_flow_error_set(error, EINVAL,
 464                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 465                                                   item,
 466                                                   "Only support src & dst ip,tos,proto in IPV4");
 467                 }
 468
 469                 if (ipv4_mask->hdr.src_addr) {
 470                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 471                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 472                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 473                 }
 474
 475                 if (ipv4_mask->hdr.dst_addr) {
 476                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 477                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 478                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 479                 }
 480
 481                 if (ipv4_mask->hdr.type_of_service) {
 482                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 483                         rule->key_conf.mask.ip_tos =
 484                             ipv4_mask->hdr.type_of_service;
 485                 }
 486
 487                 if (ipv4_mask->hdr.next_proto_id) {
 488                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 489                         rule->key_conf.mask.ip_proto =
 490                             ipv4_mask->hdr.next_proto_id;
 491                 }
 492         }
 493
 494         ipv4_spec = item->spec;
 495         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 496             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 497         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 498             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 499         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 500         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 501         return 0;
 502 }
 503
 504 static int
 505 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 506                 struct rte_flow_error *error)
 507 {
 508         const struct rte_flow_item_ipv6 *ipv6_spec;
 509         const struct rte_flow_item_ipv6 *ipv6_mask;
 510
 511         if (item->spec == NULL && item->mask)
 512                 return rte_flow_error_set(error, EINVAL,
 513                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 514                                           "Can't configure FDIR with mask but without spec");
 515
 516         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 517         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 518         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 519
 520         /* Only used to describe the protocol stack. */
 521         if (item->spec == NULL && item->mask == NULL)
 522                 return 0;
 523
 524         if (item->mask) {
 525                 ipv6_mask = item->mask;
 526                 if (ipv6_mask->hdr.vtc_flow ||
 527                     ipv6_mask->hdr.payload_len || ipv6_mask->hdr.hop_limits) {
 528                         return rte_flow_error_set(error, EINVAL,
 529                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 530                                                   item,
 531                                                   "Only support src & dst ip,proto in IPV6");
 532                 }
 533                 net_addr_to_host(rule->key_conf.mask.src_ip,
 534                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 535                                  IP_ADDR_LEN);
 536                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 537                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 538                                  IP_ADDR_LEN);
 539                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 540                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 541                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 542                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 543                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 544                 if (ipv6_mask->hdr.proto)
 545                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 546         }
 547
 548         ipv6_spec = item->spec;
 549         net_addr_to_host(rule->key_conf.spec.src_ip,
 550                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 551                          IP_ADDR_LEN);
 552         net_addr_to_host(rule->key_conf.spec.dst_ip,
 553                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 554                          IP_ADDR_LEN);
 555         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 556
 557         return 0;
 558 }
 559
 560 static int
 561 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 562                struct rte_flow_error *error)
 563 {
 564         const struct rte_flow_item_tcp *tcp_spec;
 565         const struct rte_flow_item_tcp *tcp_mask;
 566
 567         if (item->spec == NULL && item->mask)
 568                 return rte_flow_error_set(error, EINVAL,
 569                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 570                                           "Can't configure FDIR with mask but without spec");
 571
 572         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 573         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 574         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 575
 576         /* Only used to describe the protocol stack. */
 577         if (item->spec == NULL && item->mask == NULL)
 578                 return 0;
 579
 580         if (item->mask) {
 581                 tcp_mask = item->mask;
 582                 if (tcp_mask->hdr.sent_seq ||
 583                     tcp_mask->hdr.recv_ack ||
 584                     tcp_mask->hdr.data_off ||
 585                     tcp_mask->hdr.tcp_flags ||
 586                     tcp_mask->hdr.rx_win ||
 587                     tcp_mask->hdr.cksum || tcp_mask->hdr.tcp_urp) {
 588                         return rte_flow_error_set(error, EINVAL,
 589                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 590                                                   item,
 591                                                   "Only support src & dst port in TCP");
 592                 }
 593
 594                 if (tcp_mask->hdr.src_port) {
 595                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 596                         rule->key_conf.mask.src_port =
 597                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 598                 }
 599                 if (tcp_mask->hdr.dst_port) {
 600                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 601                         rule->key_conf.mask.dst_port =
 602                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 603                 }
 604         }
 605
 606         tcp_spec = item->spec;
 607         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 608         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 609
 610         return 0;
 611 }
 612
 613 static int
 614 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 615                struct rte_flow_error *error)
 616 {
 617         const struct rte_flow_item_udp *udp_spec;
 618         const struct rte_flow_item_udp *udp_mask;
 619
 620         if (item->spec == NULL && item->mask)
 621                 return rte_flow_error_set(error, EINVAL,
 622                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 623                                           "Can't configure FDIR with mask but without spec");
 624
 625         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 626         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 627         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 628         /* Only used to describe the protocol stack. */
 629         if (item->spec == NULL && item->mask == NULL)
 630                 return 0;
 631
 632         if (item->mask) {
 633                 udp_mask = item->mask;
 634                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 635                         return rte_flow_error_set(error, EINVAL,
 636                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 637                                                   item,
 638                                                   "Only support src & dst port in UDP");
 639                 }
 640                 if (udp_mask->hdr.src_port) {
 641                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 642                         rule->key_conf.mask.src_port =
 643                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 644                 }
 645                 if (udp_mask->hdr.dst_port) {
 646                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 647                         rule->key_conf.mask.dst_port =
 648                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 649                 }
 650         }
 651
 652         udp_spec = item->spec;
 653         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 654         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 655
 656         return 0;
 657 }
 658
 659 static int
 660 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 661                 struct rte_flow_error *error)
 662 {
 663         const struct rte_flow_item_sctp *sctp_spec;
 664         const struct rte_flow_item_sctp *sctp_mask;
 665
 666         if (item->spec == NULL && item->mask)
 667                 return rte_flow_error_set(error, EINVAL,
 668                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 669                                           "Can't configure FDIR with mask but without spec");
 670
 671         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 672         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 673         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 674
 675         /* Only used to describe the protocol stack. */
 676         if (item->spec == NULL && item->mask == NULL)
 677                 return 0;
 678
 679         if (item->mask) {
 680                 sctp_mask = item->mask;
 681                 if (sctp_mask->hdr.cksum)
 682                         return rte_flow_error_set(error, EINVAL,
 683                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 684                                                   item,
 685                                                   "Only support src & dst port in SCTP");
 686
 687                 if (sctp_mask->hdr.src_port) {
 688                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 689                         rule->key_conf.mask.src_port =
 690                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 691                 }
 692                 if (sctp_mask->hdr.dst_port) {
 693                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 694                         rule->key_conf.mask.dst_port =
 695                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 696                 }
 697                 if (sctp_mask->hdr.tag) {
 698                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 699                         rule->key_conf.mask.sctp_tag =
 700                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 701                 }
 702         }
 703
 704         sctp_spec = item->spec;
 705         rule->key_conf.spec.src_port =
 706             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 707         rule->key_conf.spec.dst_port =
 708             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 709         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 710
 711         return 0;
 712 }
 713
 714 /*
 715  * Check items before tunnel, save inner configs to outer configs,and clear
 716  * inner configs.
 717  * The key consists of two parts: meta_data and tuple keys.
 718  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 719  * packet(1bit).
 720  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 721  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 722  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 723  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 724  * Vlantag2(16bit) and sctp-tag(32bit).
 725  */
 726 static int
 727 hns3_handle_tunnel(const struct rte_flow_item *item,
 728                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 729 {
 730         /* check eth config */
 731         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 732                 return rte_flow_error_set(error, EINVAL,
 733                                           RTE_FLOW_ERROR_TYPE_ITEM,
 734                                           item, "Outer eth mac is unsupported");
 735         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 736                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 737                 rule->key_conf.spec.outer_ether_type =
 738                     rule->key_conf.spec.ether_type;
 739                 rule->key_conf.mask.outer_ether_type =
 740                     rule->key_conf.mask.ether_type;
 741                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 742                 rule->key_conf.spec.ether_type = 0;
 743                 rule->key_conf.mask.ether_type = 0;
 744         }
 745
 746         /* check vlan config */
 747         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 748                 return rte_flow_error_set(error, EINVAL,
 749                                           RTE_FLOW_ERROR_TYPE_ITEM,
 750                                           item,
 751                                           "Outer vlan tags is unsupported");
 752
 753         /* clear vlan_num for inner vlan select */
 754         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 755         rule->key_conf.vlan_num = 0;
 756
 757         /* check L3 config */
 758         if (rule->input_set &
 759             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 760                 return rte_flow_error_set(error, EINVAL,
 761                                           RTE_FLOW_ERROR_TYPE_ITEM,
 762                                           item, "Outer ip is unsupported");
 763         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 764                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 765                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 766                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 767                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 768                 rule->key_conf.spec.ip_proto = 0;
 769                 rule->key_conf.mask.ip_proto = 0;
 770         }
 771
 772         /* check L4 config */
 773         if (rule->input_set & BIT(INNER_SCTP_TAG))
 774                 return rte_flow_error_set(error, EINVAL,
 775                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 776                                           "Outer sctp tag is unsupported");
 777
 778         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 779                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 780                 rule->key_conf.spec.outer_src_port =
 781                     rule->key_conf.spec.src_port;
 782                 rule->key_conf.mask.outer_src_port =
 783                     rule->key_conf.mask.src_port;
 784                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 785                 rule->key_conf.spec.src_port = 0;
 786                 rule->key_conf.mask.src_port = 0;
 787         }
 788         if (rule->input_set & BIT(INNER_DST_PORT)) {
 789                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 790                 rule->key_conf.spec.dst_port = 0;
 791                 rule->key_conf.mask.dst_port = 0;
 792         }
 793         return 0;
 794 }
 795
 796 static int
 797 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 798                  struct rte_flow_error *error)
 799 {
 800         const struct rte_flow_item_vxlan *vxlan_spec;
 801         const struct rte_flow_item_vxlan *vxlan_mask;
 802
 803         if (item->spec == NULL && item->mask)
 804                 return rte_flow_error_set(error, EINVAL,
 805                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 806                                           "Can't configure FDIR with mask but without spec");
 807         else if (item->spec && (item->mask == NULL))
 808                 return rte_flow_error_set(error, EINVAL,
 809                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 810                                           "Tunnel packets must configure with mask");
 811
 812         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 813         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 814         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 815                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 816         else
 817                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 818
 819         /* Only used to describe the protocol stack. */
 820         if (item->spec == NULL && item->mask == NULL)
 821                 return 0;
 822
 823         vxlan_mask = item->mask;
 824         vxlan_spec = item->spec;
 825
 826         if (vxlan_mask->flags)
 827                 return rte_flow_error_set(error, EINVAL,
 828                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 829                                           "Flags is not supported in VxLAN");
 830
 831         /* VNI must be totally masked or not. */
 832         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 833             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 834                 return rte_flow_error_set(error, EINVAL,
 835                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 836                                           "VNI must be totally masked or not in VxLAN");
 837         if (vxlan_mask->vni[0]) {
 838                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 839                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 840                            VNI_OR_TNI_LEN);
 841         }
 842         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 843                    VNI_OR_TNI_LEN);
 844         return 0;
 845 }
 846
 847 static int
 848 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 849                  struct rte_flow_error *error)
 850 {
 851         const struct rte_flow_item_nvgre *nvgre_spec;
 852         const struct rte_flow_item_nvgre *nvgre_mask;
 853
 854         if (item->spec == NULL && item->mask)
 855                 return rte_flow_error_set(error, EINVAL,
 856                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 857                                           "Can't configure FDIR with mask but without spec");
 858         else if (item->spec && (item->mask == NULL))
 859                 return rte_flow_error_set(error, EINVAL,
 860                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 861                                           "Tunnel packets must configure with mask");
 862
 863         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 864         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 865         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 866
 867         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 868         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 869         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 870         /* Only used to describe the protocol stack. */
 871         if (item->spec == NULL && item->mask == NULL)
 872                 return 0;
 873
 874         nvgre_mask = item->mask;
 875         nvgre_spec = item->spec;
 876
 877         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 878                 return rte_flow_error_set(error, EINVAL,
 879                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 880                                           "Ver/protocal is not supported in NVGRE");
 881
 882         /* TNI must be totally masked or not. */
 883         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 884             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 885                 return rte_flow_error_set(error, EINVAL,
 886                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 887                                           "TNI must be totally masked or not in NVGRE");
 888
 889         if (nvgre_mask->tni[0]) {
 890                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 891                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 892                            VNI_OR_TNI_LEN);
 893         }
 894         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 895                    VNI_OR_TNI_LEN);
 896
 897         if (nvgre_mask->flow_id) {
 898                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 899                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 900         }
 901         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 902         return 0;
 903 }
 904
 905 static int
 906 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 907                   struct rte_flow_error *error)
 908 {
 909         const struct rte_flow_item_geneve *geneve_spec;
 910         const struct rte_flow_item_geneve *geneve_mask;
 911
 912         if (item->spec == NULL && item->mask)
 913                 return rte_flow_error_set(error, EINVAL,
 914                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 915                                           "Can't configure FDIR with mask but without spec");
 916         else if (item->spec && (item->mask == NULL))
 917                 return rte_flow_error_set(error, EINVAL,
 918                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 919                                           "Tunnel packets must configure with mask");
 920
 921         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 922         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 923         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 924         /* Only used to describe the protocol stack. */
 925         if (item->spec == NULL && item->mask == NULL)
 926                 return 0;
 927
 928         geneve_mask = item->mask;
 929         geneve_spec = item->spec;
 930
 931         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 932                 return rte_flow_error_set(error, EINVAL,
 933                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 934                                           "Ver/protocal is not supported in GENEVE");
 935         /* VNI must be totally masked or not. */
 936         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 937             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 938                 return rte_flow_error_set(error, EINVAL,
 939                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 940                                           "VNI must be totally masked or not in GENEVE");
 941         if (geneve_mask->vni[0]) {
 942                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 943                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 944                            VNI_OR_TNI_LEN);
 945         }
 946         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
 947                    VNI_OR_TNI_LEN);
 948         return 0;
 949 }
 950
 951 static int
 952 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 953                   struct rte_flow_error *error)
 954 {
 955         int ret;
 956
 957         switch (item->type) {
 958         case RTE_FLOW_ITEM_TYPE_VXLAN:
 959         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 960                 ret = hns3_parse_vxlan(item, rule, error);
 961                 break;
 962         case RTE_FLOW_ITEM_TYPE_NVGRE:
 963                 ret = hns3_parse_nvgre(item, rule, error);
 964                 break;
 965         case RTE_FLOW_ITEM_TYPE_GENEVE:
 966                 ret = hns3_parse_geneve(item, rule, error);
 967                 break;
 968         default:
 969                 return rte_flow_error_set(error, ENOTSUP,
 970                                           RTE_FLOW_ERROR_TYPE_HANDLE,
 971                                           NULL, "Unsupported tunnel type!");
 972         }
 973         if (ret)
 974                 return ret;
 975         return hns3_handle_tunnel(item, rule, error);
 976 }
 977
 978 static int
 979 hns3_parse_normal(const struct rte_flow_item *item,
 980                   struct hns3_fdir_rule *rule,
 981                   struct items_step_mngr *step_mngr,
 982                   struct rte_flow_error *error)
 983 {
 984         int ret;
 985
 986         switch (item->type) {
 987         case RTE_FLOW_ITEM_TYPE_ETH:
 988                 ret = hns3_parse_eth(item, rule, error);
 989                 step_mngr->items = L2_next_items;
 990                 step_mngr->count = ARRAY_SIZE(L2_next_items);
 991                 break;
 992         case RTE_FLOW_ITEM_TYPE_VLAN:
 993                 ret = hns3_parse_vlan(item, rule, error);
 994                 step_mngr->items = L2_next_items;
 995                 step_mngr->count = ARRAY_SIZE(L2_next_items);
 996                 break;
 997         case RTE_FLOW_ITEM_TYPE_IPV4:
 998                 ret = hns3_parse_ipv4(item, rule, error);
 999                 step_mngr->items = L3_next_items;
1000                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1001                 break;
1002         case RTE_FLOW_ITEM_TYPE_IPV6:
1003                 ret = hns3_parse_ipv6(item, rule, error);
1004                 step_mngr->items = L3_next_items;
1005                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1006                 break;
1007         case RTE_FLOW_ITEM_TYPE_TCP:
1008                 ret = hns3_parse_tcp(item, rule, error);
1009                 step_mngr->items = L4_next_items;
1010                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1011                 break;
1012         case RTE_FLOW_ITEM_TYPE_UDP:
1013                 ret = hns3_parse_udp(item, rule, error);
1014                 step_mngr->items = L4_next_items;
1015                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1016                 break;
1017         case RTE_FLOW_ITEM_TYPE_SCTP:
1018                 ret = hns3_parse_sctp(item, rule, error);
1019                 step_mngr->items = L4_next_items;
1020                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1021                 break;
1022         default:
1023                 return rte_flow_error_set(error, ENOTSUP,
1024                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1025                                           NULL, "Unsupported normal type!");
1026         }
1027
1028         return ret;
1029 }
1030
1031 static int
1032 hns3_validate_item(const struct rte_flow_item *item,
1033                    struct items_step_mngr step_mngr,
1034                    struct rte_flow_error *error)
1035 {
1036         int i;
1037
1038         if (item->last)
1039                 return rte_flow_error_set(error, ENOTSUP,
1040                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, item,
1041                                           "Not supported last point for range");
1042
1043         for (i = 0; i < step_mngr.count; i++) {
1044                 if (item->type == step_mngr.items[i])
1045                         break;
1046         }
1047
1048         if (i == step_mngr.count) {
1049                 return rte_flow_error_set(error, EINVAL,
1050                                           RTE_FLOW_ERROR_TYPE_ITEM,
1051                                           item, "Inval or missing item");
1052         }
1053         return 0;
1054 }
1055
1056 static inline bool
1057 is_tunnel_packet(enum rte_flow_item_type type)
1058 {
1059         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1060             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1061             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1062             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1063             type == RTE_FLOW_ITEM_TYPE_MPLS)
1064                 return true;
1065         return false;
1066 }
1067
1068 /*
1069  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1070  * And get the flow director filter info BTW.
1071  * UDP/TCP/SCTP PATTERN:
1072  * The first not void item can be ETH or IPV4 or IPV6
1073  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1074  * The next not void item could be UDP or TCP or SCTP (optional)
1075  * The next not void item could be RAW (for flexbyte, optional)
1076  * The next not void item must be END.
1077  * A Fuzzy Match pattern can appear at any place before END.
1078  * Fuzzy Match is optional for IPV4 but is required for IPV6
1079  * MAC VLAN PATTERN:
1080  * The first not void item must be ETH.
1081  * The second not void item must be MAC VLAN.
1082  * The next not void item must be END.
1083  * ACTION:
1084  * The first not void action should be QUEUE or DROP.
1085  * The second not void optional action should be MARK,
1086  * mark_id is a uint32_t number.
1087  * The next not void action should be END.
1088  * UDP/TCP/SCTP pattern example:
1089  * ITEM         Spec                    Mask
1090  * ETH          NULL                    NULL
1091  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1092  *              dst_addr 192.167.3.50   0xFFFFFFFF
1093  * UDP/TCP/SCTP src_port        80      0xFFFF
1094  *              dst_port        80      0xFFFF
1095  * END
1096  * MAC VLAN pattern example:
1097  * ITEM         Spec                    Mask
1098  * ETH          dst_addr
1099                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1100                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1101  * MAC VLAN     tci     0x2016          0xEFFF
1102  * END
1103  * Other members in mask and spec should set to 0x00.
1104  * Item->last should be NULL.
1105  */
1106 static int
1107 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1108                        const struct rte_flow_item pattern[],
1109                        const struct rte_flow_action actions[],
1110                        struct hns3_fdir_rule *rule,
1111                        struct rte_flow_error *error)
1112 {
1113         struct hns3_adapter *hns = dev->data->dev_private;
1114         const struct rte_flow_item *item;
1115         struct items_step_mngr step_mngr;
1116         int ret;
1117
1118         /* FDIR is available only in PF driver */
1119         if (hns->is_vf)
1120                 return rte_flow_error_set(error, ENOTSUP,
1121                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1122                                           "Fdir not supported in VF");
1123
1124         if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
1125                 return rte_flow_error_set(error, ENOTSUP,
1126                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
1127                                           "fdir_conf.mode isn't perfect");
1128
1129         step_mngr.items = first_items;
1130         step_mngr.count = ARRAY_SIZE(first_items);
1131         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1132                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1133                         continue;
1134
1135                 ret = hns3_validate_item(item, step_mngr, error);
1136                 if (ret)
1137                         return ret;
1138
1139                 if (is_tunnel_packet(item->type)) {
1140                         ret = hns3_parse_tunnel(item, rule, error);
1141                         if (ret)
1142                                 return ret;
1143                         step_mngr.items = tunnel_next_items;
1144                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1145                 } else {
1146                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1147                         if (ret)
1148                                 return ret;
1149                 }
1150         }
1151
1152         return hns3_handle_actions(dev, actions, rule, error);
1153 }
1154
1155 void
1156 hns3_filterlist_init(struct rte_eth_dev *dev)
1157 {
1158         struct hns3_process_private *process_list = dev->process_private;
1159
1160         TAILQ_INIT(&process_list->fdir_list);
1161         TAILQ_INIT(&process_list->filter_rss_list);
1162         TAILQ_INIT(&process_list->flow_list);
1163 }
1164
1165 static void
1166 hns3_filterlist_flush(struct rte_eth_dev *dev)
1167 {
1168         struct hns3_process_private *process_list = dev->process_private;
1169         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1170         struct hns3_rss_conf_ele *rss_filter_ptr;
1171         struct hns3_flow_mem *flow_node;
1172
1173         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1174         while (fdir_rule_ptr) {
1175                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1176                 rte_free(fdir_rule_ptr);
1177                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1178         }
1179
1180         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1181         while (rss_filter_ptr) {
1182                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1183                              entries);
1184                 rte_free(rss_filter_ptr);
1185                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1186         }
1187
1188         flow_node = TAILQ_FIRST(&process_list->flow_list);
1189         while (flow_node) {
1190                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1191                 rte_free(flow_node->flow);
1192                 rte_free(flow_node);
1193                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1194         }
1195 }
1196
1197 static bool
1198 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1199                      const struct rte_flow_action_rss *with)
1200 {
1201         return (comp->func == with->func &&
1202                 comp->level == with->level &&
1203                 comp->types == with->types &&
1204                 comp->key_len == with->key_len &&
1205                 comp->queue_num == with->queue_num &&
1206                 !memcmp(comp->key, with->key, with->key_len) &&
1207                 !memcmp(comp->queue, with->queue,
1208                         sizeof(*with->queue) * with->queue_num));
1209 }
1210
1211 static int
1212 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1213                    const struct rte_flow_action_rss *in)
1214 {
1215         if (in->key_len > RTE_DIM(out->key) ||
1216             in->queue_num > RTE_DIM(out->queue))
1217                 return -EINVAL;
1218         if (in->key == NULL && in->key_len)
1219                 return -EINVAL;
1220         out->conf = (struct rte_flow_action_rss) {
1221                 .func = in->func,
1222                 .level = in->level,
1223                 .types = in->types,
1224                 .key_len = in->key_len,
1225                 .queue_num = in->queue_num,
1226         };
1227         out->conf.queue =
1228                 memcpy(out->queue, in->queue,
1229                        sizeof(*in->queue) * in->queue_num);
1230         if (in->key)
1231                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1232
1233         return 0;
1234 }
1235
1236 /*
1237  * This function is used to parse rss action validatation.
1238  */
1239 static int
1240 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1241                       const struct rte_flow_action *actions,
1242                       struct rte_flow_error *error)
1243 {
1244         struct hns3_adapter *hns = dev->data->dev_private;
1245         struct hns3_hw *hw = &hns->hw;
1246         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1247         const struct rte_flow_action_rss *rss;
1248         const struct rte_flow_action *act;
1249         uint32_t act_index = 0;
1250         uint64_t flow_types;
1251         uint16_t n;
1252
1253         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1254         /* Get configuration args from APP cmdline input */
1255         rss = act->conf;
1256
1257         if (rss == NULL || rss->queue_num == 0) {
1258                 return rte_flow_error_set(error, EINVAL,
1259                                           RTE_FLOW_ERROR_TYPE_ACTION,
1260                                           act, "no valid queues");
1261         }
1262
1263         for (n = 0; n < rss->queue_num; n++) {
1264                 if (rss->queue[n] < dev->data->nb_rx_queues)
1265                         continue;
1266                 return rte_flow_error_set(error, EINVAL,
1267                                           RTE_FLOW_ERROR_TYPE_ACTION,
1268                                           act,
1269                                           "queue id > max number of queues");
1270         }
1271
1272         /* Parse flow types of RSS */
1273         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1274                 return rte_flow_error_set(error, EINVAL,
1275                                           RTE_FLOW_ERROR_TYPE_ACTION,
1276                                           act,
1277                                           "Flow types is unsupported by "
1278                                           "hns3's RSS");
1279
1280         flow_types = rss->types & HNS3_ETH_RSS_SUPPORT;
1281         if (flow_types != rss->types)
1282                 hns3_warn(hw, "RSS flow types(%" PRIx64 ") include unsupported "
1283                           "flow types", rss->types);
1284
1285         /* Parse RSS related parameters from RSS configuration */
1286         switch (rss->func) {
1287         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1288         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1289         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1290                 break;
1291         default:
1292                 return rte_flow_error_set(error, ENOTSUP,
1293                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1294                                           "input RSS hash functions are not supported");
1295         }
1296
1297         if (rss->level)
1298                 return rte_flow_error_set(error, ENOTSUP,
1299                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1300                                           "a nonzero RSS encapsulation level is not supported");
1301         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1302                 return rte_flow_error_set(error, ENOTSUP,
1303                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1304                                           "RSS hash key must be exactly 40 bytes");
1305         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1306                 return rte_flow_error_set(error, ENOTSUP,
1307                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1308                                           "too many queues for RSS context");
1309
1310         act_index++;
1311
1312         /* Check if the next not void action is END */
1313         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1314         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1315                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1316                 return rte_flow_error_set(error, EINVAL,
1317                                           RTE_FLOW_ERROR_TYPE_ACTION,
1318                                           act, "Not supported action.");
1319         }
1320
1321         return 0;
1322 }
1323
1324 static int
1325 hns3_disable_rss(struct hns3_hw *hw)
1326 {
1327         int ret;
1328
1329         /* Redirected the redirection table to queue 0 */
1330         ret = hns3_rss_reset_indir_table(hw);
1331         if (ret)
1332                 return ret;
1333
1334         /* Disable RSS */
1335         hw->rss_info.conf.types = 0;
1336         hw->rss_dis_flag = true;
1337
1338         return 0;
1339 }
1340
1341 static void
1342 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1343 {
1344         if (rss_conf->key == NULL ||
1345             rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1346                 hns3_info(hw, "Default RSS hash key to be set");
1347                 rss_conf->key = hns3_hash_key;
1348                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1349         }
1350 }
1351
1352 static int
1353 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1354                          uint8_t *hash_algo)
1355 {
1356         enum rte_eth_hash_function algo_func = *func;
1357         switch (algo_func) {
1358         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1359                 /* Keep *hash_algo as what it used to be */
1360                 algo_func = hw->rss_info.conf.func;
1361                 break;
1362         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1363                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1364                 break;
1365         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1366                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1367                 break;
1368         default:
1369                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1370                          algo_func);
1371                 return -EINVAL;
1372         }
1373         *func = algo_func;
1374
1375         return 0;
1376 }
1377
1378 static int
1379 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1380 {
1381         uint8_t hash_algo =
1382                 (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
1383                  HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
1384         struct hns3_rss_tuple_cfg *tuple;
1385         int ret;
1386
1387         /* Parse hash key */
1388         hns3_parse_rss_key(hw, rss_config);
1389
1390         /* Parse hash algorithm */
1391         ret = hns3_parse_rss_algorithm(hw, &rss_config->func, &hash_algo);
1392         if (ret)
1393                 return ret;
1394
1395         ret = hns3_set_rss_algo_key(hw, hash_algo, rss_config->key);
1396         if (ret)
1397                 return ret;
1398
1399         /* Update algorithm of hw */
1400         hw->rss_info.conf.func = rss_config->func;
1401
1402         /* Set flow type supported */
1403         tuple = &hw->rss_info.rss_tuple_sets;
1404         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1405         if (ret)
1406                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1407
1408         return ret;
1409 }
1410
1411 static int
1412 hns3_update_indir_table(struct rte_eth_dev *dev,
1413                         const struct rte_flow_action_rss *conf, uint16_t num)
1414 {
1415         struct hns3_adapter *hns = dev->data->dev_private;
1416         struct hns3_hw *hw = &hns->hw;
1417         uint8_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1418         uint16_t j, allow_rss_queues;
1419         uint8_t queue_id;
1420         uint32_t i;
1421
1422         if (num == 0) {
1423                 hns3_err(hw, "No PF queues are configured to enable RSS");
1424                 return -ENOTSUP;
1425         }
1426
1427         allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
1428         /* Fill in redirection table */
1429         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1430                HNS3_RSS_IND_TBL_SIZE);
1431         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1432                 j %= num;
1433                 if (conf->queue[j] >= allow_rss_queues) {
1434                         hns3_err(hw, "Invalid queue id(%u) to be set in "
1435                                      "redirection table, max number of rss "
1436                                      "queues: %u", conf->queue[j],
1437                                  allow_rss_queues);
1438                         return -EINVAL;
1439                 }
1440                 queue_id = conf->queue[j];
1441                 indir_tbl[i] = queue_id;
1442         }
1443
1444         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1445 }
1446
1447 static int
1448 hns3_config_rss_filter(struct rte_eth_dev *dev,
1449                        const struct hns3_rss_conf *conf, bool add)
1450 {
1451         struct hns3_adapter *hns = dev->data->dev_private;
1452         struct hns3_hw *hw = &hns->hw;
1453         struct hns3_rss_conf *rss_info;
1454         uint64_t flow_types;
1455         uint16_t num;
1456         int ret;
1457
1458         struct rte_flow_action_rss rss_flow_conf = {
1459                 .func = conf->conf.func,
1460                 .level = conf->conf.level,
1461                 .types = conf->conf.types,
1462                 .key_len = conf->conf.key_len,
1463                 .queue_num = conf->conf.queue_num,
1464                 .key = conf->conf.key_len ?
1465                     (void *)(uintptr_t)conf->conf.key : NULL,
1466                 .queue = conf->conf.queue,
1467         };
1468
1469         /* The types is Unsupported by hns3' RSS */
1470         if (!(rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT) &&
1471             rss_flow_conf.types) {
1472                 hns3_err(hw,
1473                          "Flow types(%" PRIx64 ") is unsupported by hns3's RSS",
1474                          rss_flow_conf.types);
1475                 return -EINVAL;
1476         }
1477
1478         if (rss_flow_conf.key_len &&
1479             rss_flow_conf.key_len > RTE_DIM(rss_info->key)) {
1480                 hns3_err(hw,
1481                         "input hash key(%u) greater than supported len(%zu)",
1482                         rss_flow_conf.key_len, RTE_DIM(rss_info->key));
1483                 return -EINVAL;
1484         }
1485
1486         /* Filter the unsupported flow types */
1487         flow_types = rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT;
1488         if (flow_types != rss_flow_conf.types)
1489                 hns3_warn(hw, "modified RSS types based on hardware support, "
1490                               "requested:%" PRIx64 " configured:%" PRIx64,
1491                           rss_flow_conf.types, flow_types);
1492         /* Update the useful flow types */
1493         rss_flow_conf.types = flow_types;
1494
1495         if ((rss_flow_conf.types & ETH_RSS_PROTO_MASK) == 0)
1496                 return hns3_disable_rss(hw);
1497
1498         rss_info = &hw->rss_info;
1499         if (!add) {
1500                 if (hns3_action_rss_same(&rss_info->conf, &rss_flow_conf)) {
1501                         ret = hns3_disable_rss(hw);
1502                         if (ret) {
1503                                 hns3_err(hw, "RSS disable failed(%d)", ret);
1504                                 return ret;
1505                         }
1506                         memset(rss_info, 0, sizeof(struct hns3_rss_conf));
1507                         return 0;
1508                 }
1509                 return -EINVAL;
1510         }
1511
1512         /* Get rx queues num */
1513         num = dev->data->nb_rx_queues;
1514
1515         /* Set rx queues to use */
1516         num = RTE_MIN(num, rss_flow_conf.queue_num);
1517         if (rss_flow_conf.queue_num > num)
1518                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1519                           rss_flow_conf.queue_num);
1520         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1521
1522         rte_spinlock_lock(&hw->lock);
1523         /* Update redirection talbe of rss */
1524         ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1525         if (ret)
1526                 goto rss_config_err;
1527
1528         /* Set hash algorithm and flow types by the user's config */
1529         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1530         if (ret)
1531                 goto rss_config_err;
1532
1533         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1534         if (ret) {
1535                 hns3_err(hw, "RSS config init fail(%d)", ret);
1536                 goto rss_config_err;
1537         }
1538
1539 rss_config_err:
1540         rte_spinlock_unlock(&hw->lock);
1541
1542         return ret;
1543 }
1544
1545 /* Remove the rss filter */
1546 static int
1547 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1548 {
1549         struct hns3_adapter *hns = dev->data->dev_private;
1550         struct hns3_hw *hw = &hns->hw;
1551
1552         if (hw->rss_info.conf.queue_num == 0)
1553                 return 0;
1554
1555         return hns3_config_rss_filter(dev, &hw->rss_info, false);
1556 }
1557
1558 /* Restore the rss filter */
1559 int
1560 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1561 {
1562         struct hns3_adapter *hns = dev->data->dev_private;
1563         struct hns3_hw *hw = &hns->hw;
1564
1565         if (hw->rss_info.conf.queue_num == 0)
1566                 return 0;
1567
1568         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1569 }
1570
1571 static int
1572 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1573                     const struct hns3_rss_conf *conf, bool add)
1574 {
1575         struct hns3_adapter *hns = dev->data->dev_private;
1576         struct hns3_hw *hw = &hns->hw;
1577         bool ret;
1578
1579         /* Action rss same */
1580         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1581         if (ret) {
1582                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1583                 return -EINVAL;
1584         }
1585
1586         return hns3_config_rss_filter(dev, conf, add);
1587 }
1588
1589 static int
1590 hns3_flow_args_check(const struct rte_flow_attr *attr,
1591                      const struct rte_flow_item pattern[],
1592                      const struct rte_flow_action actions[],
1593                      struct rte_flow_error *error)
1594 {
1595         if (pattern == NULL)
1596                 return rte_flow_error_set(error, EINVAL,
1597                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1598                                           NULL, "NULL pattern.");
1599
1600         if (actions == NULL)
1601                 return rte_flow_error_set(error, EINVAL,
1602                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1603                                           NULL, "NULL action.");
1604
1605         if (attr == NULL)
1606                 return rte_flow_error_set(error, EINVAL,
1607                                           RTE_FLOW_ERROR_TYPE_ATTR,
1608                                           NULL, "NULL attribute.");
1609
1610         return hns3_check_attr(attr, error);
1611 }
1612
1613 /*
1614  * Check if the flow rule is supported by hns3.
1615  * It only checkes the format. Don't guarantee the rule can be programmed into
1616  * the HW. Because there can be no enough room for the rule.
1617  */
1618 static int
1619 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1620                    const struct rte_flow_item pattern[],
1621                    const struct rte_flow_action actions[],
1622                    struct rte_flow_error *error)
1623 {
1624         struct hns3_fdir_rule fdir_rule;
1625         int ret;
1626
1627         ret = hns3_flow_args_check(attr, pattern, actions, error);
1628         if (ret)
1629                 return ret;
1630
1631         if (find_rss_action(actions))
1632                 return hns3_parse_rss_filter(dev, actions, error);
1633
1634         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1635         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1636 }
1637
1638 /*
1639  * Create or destroy a flow rule.
1640  * Theorically one rule can match more than one filters.
1641  * We will let it use the filter which it hitt first.
1642  * So, the sequence matters.
1643  */
1644 static struct rte_flow *
1645 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1646                  const struct rte_flow_item pattern[],
1647                  const struct rte_flow_action actions[],
1648                  struct rte_flow_error *error)
1649 {
1650         struct hns3_process_private *process_list = dev->process_private;
1651         struct hns3_adapter *hns = dev->data->dev_private;
1652         struct hns3_hw *hw = &hns->hw;
1653         const struct hns3_rss_conf *rss_conf;
1654         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1655         struct hns3_rss_conf_ele *rss_filter_ptr;
1656         struct hns3_flow_mem *flow_node;
1657         const struct rte_flow_action *act;
1658         struct rte_flow *flow;
1659         struct hns3_fdir_rule fdir_rule;
1660         int ret;
1661
1662         ret = hns3_flow_args_check(attr, pattern, actions, error);
1663         if (ret)
1664                 return NULL;
1665
1666         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1667         if (flow == NULL) {
1668                 rte_flow_error_set(error, ENOMEM,
1669                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1670                                    "Failed to allocate flow memory");
1671                 return NULL;
1672         }
1673         flow_node = rte_zmalloc("hns3 flow node",
1674                                 sizeof(struct hns3_flow_mem), 0);
1675         if (flow_node == NULL) {
1676                 rte_flow_error_set(error, ENOMEM,
1677                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1678                                    "Failed to allocate flow list memory");
1679                 rte_free(flow);
1680                 return NULL;
1681         }
1682
1683         flow_node->flow = flow;
1684         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1685
1686         act = find_rss_action(actions);
1687         if (act) {
1688                 rss_conf = act->conf;
1689
1690                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1691                 if (ret)
1692                         goto err;
1693
1694                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1695                                              sizeof(struct hns3_rss_conf_ele),
1696                                              0);
1697                 if (rss_filter_ptr == NULL) {
1698                         hns3_err(hw,
1699                                     "Failed to allocate hns3_rss_filter memory");
1700                         ret = -ENOMEM;
1701                         goto err;
1702                 }
1703                 memcpy(&rss_filter_ptr->filter_info, rss_conf,
1704                         sizeof(struct hns3_rss_conf));
1705                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1706                                   rss_filter_ptr, entries);
1707
1708                 flow->rule = rss_filter_ptr;
1709                 flow->filter_type = RTE_ETH_FILTER_HASH;
1710                 return flow;
1711         }
1712
1713         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1714         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1715         if (ret)
1716                 goto out;
1717
1718         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1719                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1720                                        fdir_rule.act_cnt.id, error);
1721                 if (ret)
1722                         goto out;
1723
1724                 flow->counter_id = fdir_rule.act_cnt.id;
1725         }
1726         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1727         if (!ret) {
1728                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1729                                             sizeof(struct hns3_fdir_rule_ele),
1730                                             0);
1731                 if (fdir_rule_ptr == NULL) {
1732                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1733                         ret = -ENOMEM;
1734                         goto err_fdir;
1735                 }
1736                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1737                         sizeof(struct hns3_fdir_rule));
1738                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1739                                   fdir_rule_ptr, entries);
1740                 flow->rule = fdir_rule_ptr;
1741                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1742
1743                 return flow;
1744         }
1745
1746 err_fdir:
1747         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1748                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1749
1750 err:
1751         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1752                            "Failed to create flow");
1753 out:
1754         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1755         rte_free(flow_node);
1756         rte_free(flow);
1757         return NULL;
1758 }
1759
1760 /* Destroy a flow rule on hns3. */
1761 static int
1762 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1763                   struct rte_flow_error *error)
1764 {
1765         struct hns3_process_private *process_list = dev->process_private;
1766         struct hns3_adapter *hns = dev->data->dev_private;
1767         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1768         struct hns3_rss_conf_ele *rss_filter_ptr;
1769         struct hns3_flow_mem *flow_node;
1770         struct hns3_hw *hw = &hns->hw;
1771         enum rte_filter_type filter_type;
1772         struct hns3_fdir_rule fdir_rule;
1773         int ret;
1774
1775         if (flow == NULL)
1776                 return rte_flow_error_set(error, EINVAL,
1777                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1778                                           flow, "Flow is NULL");
1779         filter_type = flow->filter_type;
1780         switch (filter_type) {
1781         case RTE_ETH_FILTER_FDIR:
1782                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1783                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1784                            sizeof(struct hns3_fdir_rule));
1785
1786                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1787                 if (ret)
1788                         return rte_flow_error_set(error, EIO,
1789                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1790                                                   flow,
1791                                                   "Destroy FDIR fail.Try again");
1792                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1793                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1794                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1795                 rte_free(fdir_rule_ptr);
1796                 fdir_rule_ptr = NULL;
1797                 break;
1798         case RTE_ETH_FILTER_HASH:
1799                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1800                 ret = hns3_config_rss_filter(dev, &hw->rss_info, false);
1801                 if (ret)
1802                         return rte_flow_error_set(error, EIO,
1803                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1804                                                   flow,
1805                                                   "Destroy RSS fail.Try again");
1806                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1807                              entries);
1808                 rte_free(rss_filter_ptr);
1809                 rss_filter_ptr = NULL;
1810                 break;
1811         default:
1812                 return rte_flow_error_set(error, EINVAL,
1813                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1814                                           "Unsupported filter type");
1815         }
1816
1817         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1818                 if (flow_node->flow == flow) {
1819                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1820                                      entries);
1821                         rte_free(flow_node);
1822                         flow_node = NULL;
1823                         break;
1824                 }
1825         }
1826         rte_free(flow);
1827         flow = NULL;
1828
1829         return 0;
1830 }
1831
1832 /*  Destroy all flow rules associated with a port on hns3. */
1833 static int
1834 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1835 {
1836         struct hns3_adapter *hns = dev->data->dev_private;
1837         int ret;
1838
1839         /* FDIR is available only in PF driver */
1840         if (!hns->is_vf) {
1841                 ret = hns3_clear_all_fdir_filter(hns);
1842                 if (ret) {
1843                         rte_flow_error_set(error, ret,
1844                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1845                                            NULL, "Failed to flush rule");
1846                         return ret;
1847                 }
1848                 hns3_counter_flush(dev);
1849         }
1850
1851         ret = hns3_clear_rss_filter(dev);
1852         if (ret) {
1853                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1854                                    NULL, "Failed to flush rss filter");
1855                 return ret;
1856         }
1857
1858         hns3_filterlist_flush(dev);
1859
1860         return 0;
1861 }
1862
1863 /* Query an existing flow rule. */
1864 static int
1865 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1866                 const struct rte_flow_action *actions, void *data,
1867                 struct rte_flow_error *error)
1868 {
1869         struct rte_flow_query_count *qc;
1870         int ret;
1871
1872         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1873                 switch (actions->type) {
1874                 case RTE_FLOW_ACTION_TYPE_VOID:
1875                         break;
1876                 case RTE_FLOW_ACTION_TYPE_COUNT:
1877                         qc = (struct rte_flow_query_count *)data;
1878                         ret = hns3_counter_query(dev, flow, qc, error);
1879                         if (ret)
1880                                 return ret;
1881                         break;
1882                 default:
1883                         return rte_flow_error_set(error, ENOTSUP,
1884                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1885                                                   actions,
1886                                                   "Query action only support count");
1887                 }
1888         }
1889         return 0;
1890 }
1891
1892 static const struct rte_flow_ops hns3_flow_ops = {
1893         .validate = hns3_flow_validate,
1894         .create = hns3_flow_create,
1895         .destroy = hns3_flow_destroy,
1896         .flush = hns3_flow_flush,
1897         .query = hns3_flow_query,
1898         .isolate = NULL,
1899 };
1900
1901 /*
1902  * The entry of flow API.
1903  * @param dev
1904  *   Pointer to Ethernet device.
1905  * @return
1906  *   0 on success, a negative errno value otherwise is set.
1907  */
1908 int
1909 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1910                      enum rte_filter_op filter_op, void *arg)
1911 {
1912         struct hns3_hw *hw;
1913         int ret = 0;
1914
1915         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1916         switch (filter_type) {
1917         case RTE_ETH_FILTER_GENERIC:
1918                 if (filter_op != RTE_ETH_FILTER_GET)
1919                         return -EINVAL;
1920                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
1921                         return -ENODEV;
1922                 *(const void **)arg = &hns3_flow_ops;
1923                 break;
1924         default:
1925                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
1926                 ret = -EOPNOTSUPP;
1927                 break;
1928         }
1929
1930         return ret;
1931 }