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         struct hns3_hw *hw = &hns->hw;
 228         const struct rte_flow_action_queue *queue;
 229
 230         queue = (const struct rte_flow_action_queue *)action->conf;
 231         if (queue->index >= hw->data->nb_rx_queues)
 232                 return rte_flow_error_set(error, EINVAL,
 233                                           RTE_FLOW_ERROR_TYPE_ACTION, action,
 234                                           "Invalid queue ID in PF");
 235         rule->queue_id = queue->index;
 236         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 237         return 0;
 238 }
 239
 240 /*
 241  * Parse actions structure from the provided pattern.
 242  * The pattern is validated as the items are copied.
 243  *
 244  * @param actions[in]
 245  * @param rule[out]
 246  *   NIC specfilc actions derived from the actions.
 247  * @param error[out]
 248  */
 249 static int
 250 hns3_handle_actions(struct rte_eth_dev *dev,
 251                     const struct rte_flow_action actions[],
 252                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 253 {
 254         struct hns3_adapter *hns = dev->data->dev_private;
 255         const struct rte_flow_action_count *act_count;
 256         const struct rte_flow_action_mark *mark;
 257         struct hns3_pf *pf = &hns->pf;
 258         uint32_t counter_num;
 259         int ret;
 260
 261         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 262                 switch (actions->type) {
 263                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 264                         ret = hns3_handle_action_queue(dev, actions, rule,
 265                                                        error);
 266                         if (ret)
 267                                 return ret;
 268                         break;
 269                 case RTE_FLOW_ACTION_TYPE_DROP:
 270                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 271                         break;
 272                 case RTE_FLOW_ACTION_TYPE_MARK:
 273                         mark =
 274                             (const struct rte_flow_action_mark *)actions->conf;
 275                         if (mark->id >= HNS3_MAX_FILTER_ID)
 276                                 return rte_flow_error_set(error, EINVAL,
 277                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 278                                                      actions,
 279                                                      "Invalid Mark ID");
 280                         rule->fd_id = mark->id;
 281                         rule->flags |= HNS3_RULE_FLAG_FDID;
 282                         break;
 283                 case RTE_FLOW_ACTION_TYPE_FLAG:
 284                         rule->fd_id = HNS3_MAX_FILTER_ID;
 285                         rule->flags |= HNS3_RULE_FLAG_FDID;
 286                         break;
 287                 case RTE_FLOW_ACTION_TYPE_COUNT:
 288                         act_count =
 289                             (const struct rte_flow_action_count *)actions->conf;
 290                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 291                         if (act_count->id >= counter_num)
 292                                 return rte_flow_error_set(error, EINVAL,
 293                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 294                                                      actions,
 295                                                      "Invalid counter id");
 296                         rule->act_cnt = *act_count;
 297                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 298                         break;
 299                 case RTE_FLOW_ACTION_TYPE_VOID:
 300                         break;
 301                 default:
 302                         return rte_flow_error_set(error, ENOTSUP,
 303                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 304                                                   NULL, "Unsupported action");
 305                 }
 306         }
 307
 308         return 0;
 309 }
 310
 311 /* Parse to get the attr and action info of flow director rule. */
 312 static int
 313 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 314 {
 315         if (!attr->ingress)
 316                 return rte_flow_error_set(error, EINVAL,
 317                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 318                                           attr, "Ingress can't be zero");
 319         if (attr->egress)
 320                 return rte_flow_error_set(error, ENOTSUP,
 321                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 322                                           attr, "Not support egress");
 323         if (attr->transfer)
 324                 return rte_flow_error_set(error, ENOTSUP,
 325                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 326                                           attr, "No support for transfer");
 327         if (attr->priority)
 328                 return rte_flow_error_set(error, ENOTSUP,
 329                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 330                                           attr, "Not support priority");
 331         if (attr->group)
 332                 return rte_flow_error_set(error, ENOTSUP,
 333                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 334                                           attr, "Not support group");
 335         return 0;
 336 }
 337
 338 static int
 339 hns3_parse_eth(const struct rte_flow_item *item,
 340                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 341 {
 342         const struct rte_flow_item_eth *eth_spec;
 343         const struct rte_flow_item_eth *eth_mask;
 344
 345         if (item->spec == NULL && item->mask)
 346                 return rte_flow_error_set(error, EINVAL,
 347                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 348                                           "Can't configure FDIR with mask but without spec");
 349
 350         /* Only used to describe the protocol stack. */
 351         if (item->spec == NULL && item->mask == NULL)
 352                 return 0;
 353
 354         if (item->mask) {
 355                 eth_mask = item->mask;
 356                 if (eth_mask->type) {
 357                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 358                         rule->key_conf.mask.ether_type =
 359                             rte_be_to_cpu_16(eth_mask->type);
 360                 }
 361                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 362                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 363                         memcpy(rule->key_conf.mask.src_mac,
 364                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 365                 }
 366                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 367                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 368                         memcpy(rule->key_conf.mask.dst_mac,
 369                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 370                 }
 371         }
 372
 373         eth_spec = item->spec;
 374         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 375         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 376                RTE_ETHER_ADDR_LEN);
 377         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 378                RTE_ETHER_ADDR_LEN);
 379         return 0;
 380 }
 381
 382 static int
 383 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 384                 struct rte_flow_error *error)
 385 {
 386         const struct rte_flow_item_vlan *vlan_spec;
 387         const struct rte_flow_item_vlan *vlan_mask;
 388
 389         if (item->spec == NULL && item->mask)
 390                 return rte_flow_error_set(error, EINVAL,
 391                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 392                                           "Can't configure FDIR with mask but without spec");
 393
 394         rule->key_conf.vlan_num++;
 395         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 396                 return rte_flow_error_set(error, EINVAL,
 397                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 398                                           "Vlan_num is more than 2");
 399
 400         /* Only used to describe the protocol stack. */
 401         if (item->spec == NULL && item->mask == NULL)
 402                 return 0;
 403
 404         if (item->mask) {
 405                 vlan_mask = item->mask;
 406                 if (vlan_mask->tci) {
 407                         if (rule->key_conf.vlan_num == 1) {
 408                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 409                                              1);
 410                                 rule->key_conf.mask.vlan_tag1 =
 411                                     rte_be_to_cpu_16(vlan_mask->tci);
 412                         } else {
 413                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 414                                              1);
 415                                 rule->key_conf.mask.vlan_tag2 =
 416                                     rte_be_to_cpu_16(vlan_mask->tci);
 417                         }
 418                 }
 419         }
 420
 421         vlan_spec = item->spec;
 422         if (rule->key_conf.vlan_num == 1)
 423                 rule->key_conf.spec.vlan_tag1 =
 424                     rte_be_to_cpu_16(vlan_spec->tci);
 425         else
 426                 rule->key_conf.spec.vlan_tag2 =
 427                     rte_be_to_cpu_16(vlan_spec->tci);
 428         return 0;
 429 }
 430
 431 static int
 432 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 433                 struct rte_flow_error *error)
 434 {
 435         const struct rte_flow_item_ipv4 *ipv4_spec;
 436         const struct rte_flow_item_ipv4 *ipv4_mask;
 437
 438         if (item->spec == NULL && item->mask)
 439                 return rte_flow_error_set(error, EINVAL,
 440                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 441                                           "Can't configure FDIR with mask but without spec");
 442
 443         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 444         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 445         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 446         /* Only used to describe the protocol stack. */
 447         if (item->spec == NULL && item->mask == NULL)
 448                 return 0;
 449
 450         if (item->mask) {
 451                 ipv4_mask = item->mask;
 452
 453                 if (ipv4_mask->hdr.total_length ||
 454                     ipv4_mask->hdr.packet_id ||
 455                     ipv4_mask->hdr.fragment_offset ||
 456                     ipv4_mask->hdr.time_to_live ||
 457                     ipv4_mask->hdr.hdr_checksum) {
 458                         return rte_flow_error_set(error, EINVAL,
 459                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 460                                                   item,
 461                                                   "Only support src & dst ip,tos,proto in IPV4");
 462                 }
 463
 464                 if (ipv4_mask->hdr.src_addr) {
 465                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 466                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 467                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 468                 }
 469
 470                 if (ipv4_mask->hdr.dst_addr) {
 471                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 472                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 473                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 474                 }
 475
 476                 if (ipv4_mask->hdr.type_of_service) {
 477                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 478                         rule->key_conf.mask.ip_tos =
 479                             ipv4_mask->hdr.type_of_service;
 480                 }
 481
 482                 if (ipv4_mask->hdr.next_proto_id) {
 483                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 484                         rule->key_conf.mask.ip_proto =
 485                             ipv4_mask->hdr.next_proto_id;
 486                 }
 487         }
 488
 489         ipv4_spec = item->spec;
 490         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 491             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 492         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 493             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 494         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 495         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 496         return 0;
 497 }
 498
 499 static int
 500 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 501                 struct rte_flow_error *error)
 502 {
 503         const struct rte_flow_item_ipv6 *ipv6_spec;
 504         const struct rte_flow_item_ipv6 *ipv6_mask;
 505
 506         if (item->spec == NULL && item->mask)
 507                 return rte_flow_error_set(error, EINVAL,
 508                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 509                                           "Can't configure FDIR with mask but without spec");
 510
 511         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 512         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 513         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 514
 515         /* Only used to describe the protocol stack. */
 516         if (item->spec == NULL && item->mask == NULL)
 517                 return 0;
 518
 519         if (item->mask) {
 520                 ipv6_mask = item->mask;
 521                 if (ipv6_mask->hdr.vtc_flow ||
 522                     ipv6_mask->hdr.payload_len || ipv6_mask->hdr.hop_limits) {
 523                         return rte_flow_error_set(error, EINVAL,
 524                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 525                                                   item,
 526                                                   "Only support src & dst ip,proto in IPV6");
 527                 }
 528                 net_addr_to_host(rule->key_conf.mask.src_ip,
 529                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 530                                  IP_ADDR_LEN);
 531                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 532                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 533                                  IP_ADDR_LEN);
 534                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 535                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 536                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 537                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 538                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 539                 if (ipv6_mask->hdr.proto)
 540                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 541         }
 542
 543         ipv6_spec = item->spec;
 544         net_addr_to_host(rule->key_conf.spec.src_ip,
 545                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 546                          IP_ADDR_LEN);
 547         net_addr_to_host(rule->key_conf.spec.dst_ip,
 548                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 549                          IP_ADDR_LEN);
 550         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 551
 552         return 0;
 553 }
 554
 555 static int
 556 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 557                struct rte_flow_error *error)
 558 {
 559         const struct rte_flow_item_tcp *tcp_spec;
 560         const struct rte_flow_item_tcp *tcp_mask;
 561
 562         if (item->spec == NULL && item->mask)
 563                 return rte_flow_error_set(error, EINVAL,
 564                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 565                                           "Can't configure FDIR with mask but without spec");
 566
 567         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 568         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 569         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 570
 571         /* Only used to describe the protocol stack. */
 572         if (item->spec == NULL && item->mask == NULL)
 573                 return 0;
 574
 575         if (item->mask) {
 576                 tcp_mask = item->mask;
 577                 if (tcp_mask->hdr.sent_seq ||
 578                     tcp_mask->hdr.recv_ack ||
 579                     tcp_mask->hdr.data_off ||
 580                     tcp_mask->hdr.tcp_flags ||
 581                     tcp_mask->hdr.rx_win ||
 582                     tcp_mask->hdr.cksum || tcp_mask->hdr.tcp_urp) {
 583                         return rte_flow_error_set(error, EINVAL,
 584                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 585                                                   item,
 586                                                   "Only support src & dst port in TCP");
 587                 }
 588
 589                 if (tcp_mask->hdr.src_port) {
 590                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 591                         rule->key_conf.mask.src_port =
 592                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 593                 }
 594                 if (tcp_mask->hdr.dst_port) {
 595                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 596                         rule->key_conf.mask.dst_port =
 597                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 598                 }
 599         }
 600
 601         tcp_spec = item->spec;
 602         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 603         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 604
 605         return 0;
 606 }
 607
 608 static int
 609 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 610                struct rte_flow_error *error)
 611 {
 612         const struct rte_flow_item_udp *udp_spec;
 613         const struct rte_flow_item_udp *udp_mask;
 614
 615         if (item->spec == NULL && item->mask)
 616                 return rte_flow_error_set(error, EINVAL,
 617                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 618                                           "Can't configure FDIR with mask but without spec");
 619
 620         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 621         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 622         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 623         /* Only used to describe the protocol stack. */
 624         if (item->spec == NULL && item->mask == NULL)
 625                 return 0;
 626
 627         if (item->mask) {
 628                 udp_mask = item->mask;
 629                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 630                         return rte_flow_error_set(error, EINVAL,
 631                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 632                                                   item,
 633                                                   "Only support src & dst port in UDP");
 634                 }
 635                 if (udp_mask->hdr.src_port) {
 636                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 637                         rule->key_conf.mask.src_port =
 638                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 639                 }
 640                 if (udp_mask->hdr.dst_port) {
 641                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 642                         rule->key_conf.mask.dst_port =
 643                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 644                 }
 645         }
 646
 647         udp_spec = item->spec;
 648         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 649         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 650
 651         return 0;
 652 }
 653
 654 static int
 655 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 656                 struct rte_flow_error *error)
 657 {
 658         const struct rte_flow_item_sctp *sctp_spec;
 659         const struct rte_flow_item_sctp *sctp_mask;
 660
 661         if (item->spec == NULL && item->mask)
 662                 return rte_flow_error_set(error, EINVAL,
 663                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 664                                           "Can't configure FDIR with mask but without spec");
 665
 666         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 667         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 668         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 669
 670         /* Only used to describe the protocol stack. */
 671         if (item->spec == NULL && item->mask == NULL)
 672                 return 0;
 673
 674         if (item->mask) {
 675                 sctp_mask = item->mask;
 676                 if (sctp_mask->hdr.cksum)
 677                         return rte_flow_error_set(error, EINVAL,
 678                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 679                                                   item,
 680                                                   "Only support src & dst port in SCTP");
 681
 682                 if (sctp_mask->hdr.src_port) {
 683                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 684                         rule->key_conf.mask.src_port =
 685                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 686                 }
 687                 if (sctp_mask->hdr.dst_port) {
 688                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 689                         rule->key_conf.mask.dst_port =
 690                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 691                 }
 692                 if (sctp_mask->hdr.tag) {
 693                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 694                         rule->key_conf.mask.sctp_tag =
 695                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 696                 }
 697         }
 698
 699         sctp_spec = item->spec;
 700         rule->key_conf.spec.src_port =
 701             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 702         rule->key_conf.spec.dst_port =
 703             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 704         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 705
 706         return 0;
 707 }
 708
 709 /*
 710  * Check items before tunnel, save inner configs to outer configs,and clear
 711  * inner configs.
 712  * The key consists of two parts: meta_data and tuple keys.
 713  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 714  * packet(1bit).
 715  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 716  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 717  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 718  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 719  * Vlantag2(16bit) and sctp-tag(32bit).
 720  */
 721 static int
 722 hns3_handle_tunnel(const struct rte_flow_item *item,
 723                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 724 {
 725         /* check eth config */
 726         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 727                 return rte_flow_error_set(error, EINVAL,
 728                                           RTE_FLOW_ERROR_TYPE_ITEM,
 729                                           item, "Outer eth mac is unsupported");
 730         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 731                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 732                 rule->key_conf.spec.outer_ether_type =
 733                     rule->key_conf.spec.ether_type;
 734                 rule->key_conf.mask.outer_ether_type =
 735                     rule->key_conf.mask.ether_type;
 736                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 737                 rule->key_conf.spec.ether_type = 0;
 738                 rule->key_conf.mask.ether_type = 0;
 739         }
 740
 741         /* check vlan config */
 742         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 743                 return rte_flow_error_set(error, EINVAL,
 744                                           RTE_FLOW_ERROR_TYPE_ITEM,
 745                                           item,
 746                                           "Outer vlan tags is unsupported");
 747
 748         /* clear vlan_num for inner vlan select */
 749         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 750         rule->key_conf.vlan_num = 0;
 751
 752         /* check L3 config */
 753         if (rule->input_set &
 754             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 755                 return rte_flow_error_set(error, EINVAL,
 756                                           RTE_FLOW_ERROR_TYPE_ITEM,
 757                                           item, "Outer ip is unsupported");
 758         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 759                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 760                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 761                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 762                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 763                 rule->key_conf.spec.ip_proto = 0;
 764                 rule->key_conf.mask.ip_proto = 0;
 765         }
 766
 767         /* check L4 config */
 768         if (rule->input_set & BIT(INNER_SCTP_TAG))
 769                 return rte_flow_error_set(error, EINVAL,
 770                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 771                                           "Outer sctp tag is unsupported");
 772
 773         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 774                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 775                 rule->key_conf.spec.outer_src_port =
 776                     rule->key_conf.spec.src_port;
 777                 rule->key_conf.mask.outer_src_port =
 778                     rule->key_conf.mask.src_port;
 779                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 780                 rule->key_conf.spec.src_port = 0;
 781                 rule->key_conf.mask.src_port = 0;
 782         }
 783         if (rule->input_set & BIT(INNER_DST_PORT)) {
 784                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 785                 rule->key_conf.spec.dst_port = 0;
 786                 rule->key_conf.mask.dst_port = 0;
 787         }
 788         return 0;
 789 }
 790
 791 static int
 792 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 793                  struct rte_flow_error *error)
 794 {
 795         const struct rte_flow_item_vxlan *vxlan_spec;
 796         const struct rte_flow_item_vxlan *vxlan_mask;
 797
 798         if (item->spec == NULL && item->mask)
 799                 return rte_flow_error_set(error, EINVAL,
 800                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 801                                           "Can't configure FDIR with mask but without spec");
 802         else if (item->spec && (item->mask == NULL))
 803                 return rte_flow_error_set(error, EINVAL,
 804                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 805                                           "Tunnel packets must configure with mask");
 806
 807         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 808         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 809         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 810                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 811         else
 812                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 813
 814         /* Only used to describe the protocol stack. */
 815         if (item->spec == NULL && item->mask == NULL)
 816                 return 0;
 817
 818         vxlan_mask = item->mask;
 819         vxlan_spec = item->spec;
 820
 821         if (vxlan_mask->flags)
 822                 return rte_flow_error_set(error, EINVAL,
 823                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 824                                           "Flags is not supported in VxLAN");
 825
 826         /* VNI must be totally masked or not. */
 827         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 828             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 829                 return rte_flow_error_set(error, EINVAL,
 830                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 831                                           "VNI must be totally masked or not in VxLAN");
 832         if (vxlan_mask->vni[0]) {
 833                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 834                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 835                            VNI_OR_TNI_LEN);
 836         }
 837         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 838                    VNI_OR_TNI_LEN);
 839         return 0;
 840 }
 841
 842 static int
 843 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 844                  struct rte_flow_error *error)
 845 {
 846         const struct rte_flow_item_nvgre *nvgre_spec;
 847         const struct rte_flow_item_nvgre *nvgre_mask;
 848
 849         if (item->spec == NULL && item->mask)
 850                 return rte_flow_error_set(error, EINVAL,
 851                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 852                                           "Can't configure FDIR with mask but without spec");
 853         else if (item->spec && (item->mask == NULL))
 854                 return rte_flow_error_set(error, EINVAL,
 855                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 856                                           "Tunnel packets must configure with mask");
 857
 858         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 859         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 860         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 861
 862         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 863         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 864         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 865         /* Only used to describe the protocol stack. */
 866         if (item->spec == NULL && item->mask == NULL)
 867                 return 0;
 868
 869         nvgre_mask = item->mask;
 870         nvgre_spec = item->spec;
 871
 872         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 873                 return rte_flow_error_set(error, EINVAL,
 874                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 875                                           "Ver/protocal is not supported in NVGRE");
 876
 877         /* TNI must be totally masked or not. */
 878         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 879             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 880                 return rte_flow_error_set(error, EINVAL,
 881                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 882                                           "TNI must be totally masked or not in NVGRE");
 883
 884         if (nvgre_mask->tni[0]) {
 885                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 886                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 887                            VNI_OR_TNI_LEN);
 888         }
 889         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 890                    VNI_OR_TNI_LEN);
 891
 892         if (nvgre_mask->flow_id) {
 893                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 894                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 895         }
 896         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 897         return 0;
 898 }
 899
 900 static int
 901 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 902                   struct rte_flow_error *error)
 903 {
 904         const struct rte_flow_item_geneve *geneve_spec;
 905         const struct rte_flow_item_geneve *geneve_mask;
 906
 907         if (item->spec == NULL && item->mask)
 908                 return rte_flow_error_set(error, EINVAL,
 909                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 910                                           "Can't configure FDIR with mask but without spec");
 911         else if (item->spec && (item->mask == NULL))
 912                 return rte_flow_error_set(error, EINVAL,
 913                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 914                                           "Tunnel packets must configure with mask");
 915
 916         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 917         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 918         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 919         /* Only used to describe the protocol stack. */
 920         if (item->spec == NULL && item->mask == NULL)
 921                 return 0;
 922
 923         geneve_mask = item->mask;
 924         geneve_spec = item->spec;
 925
 926         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 927                 return rte_flow_error_set(error, EINVAL,
 928                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 929                                           "Ver/protocal is not supported in GENEVE");
 930         /* VNI must be totally masked or not. */
 931         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 932             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 933                 return rte_flow_error_set(error, EINVAL,
 934                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 935                                           "VNI must be totally masked or not in GENEVE");
 936         if (geneve_mask->vni[0]) {
 937                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 938                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 939                            VNI_OR_TNI_LEN);
 940         }
 941         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
 942                    VNI_OR_TNI_LEN);
 943         return 0;
 944 }
 945
 946 static int
 947 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 948                   struct rte_flow_error *error)
 949 {
 950         int ret;
 951
 952         switch (item->type) {
 953         case RTE_FLOW_ITEM_TYPE_VXLAN:
 954         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
 955                 ret = hns3_parse_vxlan(item, rule, error);
 956                 break;
 957         case RTE_FLOW_ITEM_TYPE_NVGRE:
 958                 ret = hns3_parse_nvgre(item, rule, error);
 959                 break;
 960         case RTE_FLOW_ITEM_TYPE_GENEVE:
 961                 ret = hns3_parse_geneve(item, rule, error);
 962                 break;
 963         default:
 964                 return rte_flow_error_set(error, ENOTSUP,
 965                                           RTE_FLOW_ERROR_TYPE_HANDLE,
 966                                           NULL, "Unsupported tunnel type!");
 967         }
 968         if (ret)
 969                 return ret;
 970         return hns3_handle_tunnel(item, rule, error);
 971 }
 972
 973 static int
 974 hns3_parse_normal(const struct rte_flow_item *item,
 975                   struct hns3_fdir_rule *rule,
 976                   struct items_step_mngr *step_mngr,
 977                   struct rte_flow_error *error)
 978 {
 979         int ret;
 980
 981         switch (item->type) {
 982         case RTE_FLOW_ITEM_TYPE_ETH:
 983                 ret = hns3_parse_eth(item, rule, error);
 984                 step_mngr->items = L2_next_items;
 985                 step_mngr->count = ARRAY_SIZE(L2_next_items);
 986                 break;
 987         case RTE_FLOW_ITEM_TYPE_VLAN:
 988                 ret = hns3_parse_vlan(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_IPV4:
 993                 ret = hns3_parse_ipv4(item, rule, error);
 994                 step_mngr->items = L3_next_items;
 995                 step_mngr->count = ARRAY_SIZE(L3_next_items);
 996                 break;
 997         case RTE_FLOW_ITEM_TYPE_IPV6:
 998                 ret = hns3_parse_ipv6(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_TCP:
1003                 ret = hns3_parse_tcp(item, rule, error);
1004                 step_mngr->items = L4_next_items;
1005                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1006                 break;
1007         case RTE_FLOW_ITEM_TYPE_UDP:
1008                 ret = hns3_parse_udp(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_SCTP:
1013                 ret = hns3_parse_sctp(item, rule, error);
1014                 step_mngr->items = L4_next_items;
1015                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1016                 break;
1017         default:
1018                 return rte_flow_error_set(error, ENOTSUP,
1019                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1020                                           NULL, "Unsupported normal type!");
1021         }
1022
1023         return ret;
1024 }
1025
1026 static int
1027 hns3_validate_item(const struct rte_flow_item *item,
1028                    struct items_step_mngr step_mngr,
1029                    struct rte_flow_error *error)
1030 {
1031         int i;
1032
1033         if (item->last)
1034                 return rte_flow_error_set(error, ENOTSUP,
1035                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, item,
1036                                           "Not supported last point for range");
1037
1038         for (i = 0; i < step_mngr.count; i++) {
1039                 if (item->type == step_mngr.items[i])
1040                         break;
1041         }
1042
1043         if (i == step_mngr.count) {
1044                 return rte_flow_error_set(error, EINVAL,
1045                                           RTE_FLOW_ERROR_TYPE_ITEM,
1046                                           item, "Inval or missing item");
1047         }
1048         return 0;
1049 }
1050
1051 static inline bool
1052 is_tunnel_packet(enum rte_flow_item_type type)
1053 {
1054         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1055             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1056             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1057             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1058             type == RTE_FLOW_ITEM_TYPE_MPLS)
1059                 return true;
1060         return false;
1061 }
1062
1063 /*
1064  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1065  * And get the flow director filter info BTW.
1066  * UDP/TCP/SCTP PATTERN:
1067  * The first not void item can be ETH or IPV4 or IPV6
1068  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1069  * The next not void item could be UDP or TCP or SCTP (optional)
1070  * The next not void item could be RAW (for flexbyte, optional)
1071  * The next not void item must be END.
1072  * A Fuzzy Match pattern can appear at any place before END.
1073  * Fuzzy Match is optional for IPV4 but is required for IPV6
1074  * MAC VLAN PATTERN:
1075  * The first not void item must be ETH.
1076  * The second not void item must be MAC VLAN.
1077  * The next not void item must be END.
1078  * ACTION:
1079  * The first not void action should be QUEUE or DROP.
1080  * The second not void optional action should be MARK,
1081  * mark_id is a uint32_t number.
1082  * The next not void action should be END.
1083  * UDP/TCP/SCTP pattern example:
1084  * ITEM         Spec                    Mask
1085  * ETH          NULL                    NULL
1086  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1087  *              dst_addr 192.167.3.50   0xFFFFFFFF
1088  * UDP/TCP/SCTP src_port        80      0xFFFF
1089  *              dst_port        80      0xFFFF
1090  * END
1091  * MAC VLAN pattern example:
1092  * ITEM         Spec                    Mask
1093  * ETH          dst_addr
1094                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1095                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1096  * MAC VLAN     tci     0x2016          0xEFFF
1097  * END
1098  * Other members in mask and spec should set to 0x00.
1099  * Item->last should be NULL.
1100  */
1101 static int
1102 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1103                        const struct rte_flow_item pattern[],
1104                        const struct rte_flow_action actions[],
1105                        struct hns3_fdir_rule *rule,
1106                        struct rte_flow_error *error)
1107 {
1108         struct hns3_adapter *hns = dev->data->dev_private;
1109         const struct rte_flow_item *item;
1110         struct items_step_mngr step_mngr;
1111         int ret;
1112
1113         /* FDIR is available only in PF driver */
1114         if (hns->is_vf)
1115                 return rte_flow_error_set(error, ENOTSUP,
1116                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1117                                           "Fdir not supported in VF");
1118
1119         if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
1120                 return rte_flow_error_set(error, ENOTSUP,
1121                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
1122                                           "fdir_conf.mode isn't perfect");
1123
1124         step_mngr.items = first_items;
1125         step_mngr.count = ARRAY_SIZE(first_items);
1126         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1127                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1128                         continue;
1129
1130                 ret = hns3_validate_item(item, step_mngr, error);
1131                 if (ret)
1132                         return ret;
1133
1134                 if (is_tunnel_packet(item->type)) {
1135                         ret = hns3_parse_tunnel(item, rule, error);
1136                         if (ret)
1137                                 return ret;
1138                         step_mngr.items = tunnel_next_items;
1139                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1140                 } else {
1141                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1142                         if (ret)
1143                                 return ret;
1144                 }
1145         }
1146
1147         return hns3_handle_actions(dev, actions, rule, error);
1148 }
1149
1150 void
1151 hns3_filterlist_init(struct rte_eth_dev *dev)
1152 {
1153         struct hns3_process_private *process_list = dev->process_private;
1154
1155         TAILQ_INIT(&process_list->fdir_list);
1156         TAILQ_INIT(&process_list->filter_rss_list);
1157         TAILQ_INIT(&process_list->flow_list);
1158 }
1159
1160 static void
1161 hns3_filterlist_flush(struct rte_eth_dev *dev)
1162 {
1163         struct hns3_process_private *process_list = dev->process_private;
1164         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1165         struct hns3_rss_conf_ele *rss_filter_ptr;
1166         struct hns3_flow_mem *flow_node;
1167
1168         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1169         while (fdir_rule_ptr) {
1170                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1171                 rte_free(fdir_rule_ptr);
1172                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1173         }
1174
1175         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1176         while (rss_filter_ptr) {
1177                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1178                              entries);
1179                 rte_free(rss_filter_ptr);
1180                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1181         }
1182
1183         flow_node = TAILQ_FIRST(&process_list->flow_list);
1184         while (flow_node) {
1185                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1186                 rte_free(flow_node->flow);
1187                 rte_free(flow_node);
1188                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1189         }
1190 }
1191
1192 static bool
1193 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1194                      const struct rte_flow_action_rss *with)
1195 {
1196         return (comp->func == with->func &&
1197                 comp->level == with->level &&
1198                 comp->types == with->types &&
1199                 comp->key_len == with->key_len &&
1200                 comp->queue_num == with->queue_num &&
1201                 !memcmp(comp->key, with->key, with->key_len) &&
1202                 !memcmp(comp->queue, with->queue,
1203                         sizeof(*with->queue) * with->queue_num));
1204 }
1205
1206 static int
1207 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1208                    const struct rte_flow_action_rss *in)
1209 {
1210         if (in->key_len > RTE_DIM(out->key) ||
1211             in->queue_num > RTE_DIM(out->queue))
1212                 return -EINVAL;
1213         if (in->key == NULL && in->key_len)
1214                 return -EINVAL;
1215         out->conf = (struct rte_flow_action_rss) {
1216                 .func = in->func,
1217                 .level = in->level,
1218                 .types = in->types,
1219                 .key_len = in->key_len,
1220                 .queue_num = in->queue_num,
1221         };
1222         out->conf.queue =
1223                 memcpy(out->queue, in->queue,
1224                        sizeof(*in->queue) * in->queue_num);
1225         if (in->key)
1226                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1227
1228         return 0;
1229 }
1230
1231 /*
1232  * This function is used to parse rss action validatation.
1233  */
1234 static int
1235 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1236                       const struct rte_flow_action *actions,
1237                       struct rte_flow_error *error)
1238 {
1239         struct hns3_adapter *hns = dev->data->dev_private;
1240         struct hns3_hw *hw = &hns->hw;
1241         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1242         const struct rte_flow_action_rss *rss;
1243         const struct rte_flow_action *act;
1244         uint32_t act_index = 0;
1245         uint64_t flow_types;
1246         uint16_t n;
1247
1248         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1249         /* Get configuration args from APP cmdline input */
1250         rss = act->conf;
1251
1252         if (rss == NULL || rss->queue_num == 0) {
1253                 return rte_flow_error_set(error, EINVAL,
1254                                           RTE_FLOW_ERROR_TYPE_ACTION,
1255                                           act, "no valid queues");
1256         }
1257
1258         for (n = 0; n < rss->queue_num; n++) {
1259                 if (rss->queue[n] < dev->data->nb_rx_queues)
1260                         continue;
1261                 return rte_flow_error_set(error, EINVAL,
1262                                           RTE_FLOW_ERROR_TYPE_ACTION,
1263                                           act,
1264                                           "queue id > max number of queues");
1265         }
1266
1267         /* Parse flow types of RSS */
1268         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1269                 return rte_flow_error_set(error, EINVAL,
1270                                           RTE_FLOW_ERROR_TYPE_ACTION,
1271                                           act,
1272                                           "Flow types is unsupported by "
1273                                           "hns3's RSS");
1274
1275         flow_types = rss->types & HNS3_ETH_RSS_SUPPORT;
1276         if (flow_types != rss->types)
1277                 hns3_warn(hw, "RSS flow types(%" PRIx64 ") include unsupported "
1278                           "flow types", rss->types);
1279
1280         /* Parse RSS related parameters from RSS configuration */
1281         switch (rss->func) {
1282         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1283         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1284         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1285                 break;
1286         default:
1287                 return rte_flow_error_set(error, ENOTSUP,
1288                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1289                                           "input RSS hash functions are not supported");
1290         }
1291
1292         if (rss->level)
1293                 return rte_flow_error_set(error, ENOTSUP,
1294                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1295                                           "a nonzero RSS encapsulation level is not supported");
1296         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1297                 return rte_flow_error_set(error, ENOTSUP,
1298                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1299                                           "RSS hash key must be exactly 40 bytes");
1300         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1301                 return rte_flow_error_set(error, ENOTSUP,
1302                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1303                                           "too many queues for RSS context");
1304
1305         act_index++;
1306
1307         /* Check if the next not void action is END */
1308         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1309         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1310                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1311                 return rte_flow_error_set(error, EINVAL,
1312                                           RTE_FLOW_ERROR_TYPE_ACTION,
1313                                           act, "Not supported action.");
1314         }
1315
1316         return 0;
1317 }
1318
1319 static int
1320 hns3_disable_rss(struct hns3_hw *hw)
1321 {
1322         int ret;
1323
1324         /* Redirected the redirection table to queue 0 */
1325         ret = hns3_rss_reset_indir_table(hw);
1326         if (ret)
1327                 return ret;
1328
1329         /* Disable RSS */
1330         hw->rss_info.conf.types = 0;
1331
1332         return 0;
1333 }
1334
1335 static void
1336 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1337 {
1338         if (rss_conf->key == NULL ||
1339             rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1340                 hns3_info(hw, "Default RSS hash key to be set");
1341                 rss_conf->key = hns3_hash_key;
1342                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1343         }
1344 }
1345
1346 static int
1347 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1348                          uint8_t *hash_algo)
1349 {
1350         enum rte_eth_hash_function algo_func = *func;
1351         switch (algo_func) {
1352         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1353                 /* Keep *hash_algo as what it used to be */
1354                 algo_func = hw->rss_info.conf.func;
1355                 break;
1356         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1357                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1358                 break;
1359         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1360                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1361                 break;
1362         default:
1363                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1364                          algo_func);
1365                 return -EINVAL;
1366         }
1367         *func = algo_func;
1368
1369         return 0;
1370 }
1371
1372 static int
1373 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1374 {
1375         uint8_t hash_algo =
1376                 (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_TOEPLITZ ?
1377                  HNS3_RSS_HASH_ALGO_TOEPLITZ : HNS3_RSS_HASH_ALGO_SIMPLE);
1378         struct hns3_rss_tuple_cfg *tuple;
1379         int ret;
1380
1381         /* Parse hash key */
1382         hns3_parse_rss_key(hw, rss_config);
1383
1384         /* Parse hash algorithm */
1385         ret = hns3_parse_rss_algorithm(hw, &rss_config->func, &hash_algo);
1386         if (ret)
1387                 return ret;
1388
1389         ret = hns3_set_rss_algo_key(hw, hash_algo, rss_config->key);
1390         if (ret)
1391                 return ret;
1392
1393         /* Update algorithm of hw */
1394         hw->rss_info.conf.func = rss_config->func;
1395
1396         /* Set flow type supported */
1397         tuple = &hw->rss_info.rss_tuple_sets;
1398         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1399         if (ret)
1400                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1401
1402         return ret;
1403 }
1404
1405 static int
1406 hns3_update_indir_table(struct rte_eth_dev *dev,
1407                         const struct rte_flow_action_rss *conf, uint16_t num)
1408 {
1409         struct hns3_adapter *hns = dev->data->dev_private;
1410         struct hns3_hw *hw = &hns->hw;
1411         uint8_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1412         uint16_t j, allow_rss_queues;
1413         uint8_t queue_id;
1414         uint32_t i;
1415
1416         if (num == 0) {
1417                 hns3_err(hw, "No PF queues are configured to enable RSS");
1418                 return -ENOTSUP;
1419         }
1420
1421         allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
1422         /* Fill in redirection table */
1423         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1424                HNS3_RSS_IND_TBL_SIZE);
1425         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1426                 j %= num;
1427                 if (conf->queue[j] >= allow_rss_queues) {
1428                         hns3_err(hw, "Invalid queue id(%u) to be set in "
1429                                      "redirection table, max number of rss "
1430                                      "queues: %u", conf->queue[j],
1431                                  allow_rss_queues);
1432                         return -EINVAL;
1433                 }
1434                 queue_id = conf->queue[j];
1435                 indir_tbl[i] = queue_id;
1436         }
1437
1438         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1439 }
1440
1441 static int
1442 hns3_config_rss_filter(struct rte_eth_dev *dev,
1443                        const struct hns3_rss_conf *conf, bool add)
1444 {
1445         struct hns3_adapter *hns = dev->data->dev_private;
1446         struct hns3_hw *hw = &hns->hw;
1447         struct hns3_rss_conf *rss_info;
1448         uint64_t flow_types;
1449         uint16_t num;
1450         int ret;
1451
1452         struct rte_flow_action_rss rss_flow_conf = {
1453                 .func = conf->conf.func,
1454                 .level = conf->conf.level,
1455                 .types = conf->conf.types,
1456                 .key_len = conf->conf.key_len,
1457                 .queue_num = conf->conf.queue_num,
1458                 .key = conf->conf.key_len ?
1459                     (void *)(uintptr_t)conf->conf.key : NULL,
1460                 .queue = conf->conf.queue,
1461         };
1462
1463         /* The types is Unsupported by hns3' RSS */
1464         if (!(rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT) &&
1465             rss_flow_conf.types) {
1466                 hns3_err(hw,
1467                          "Flow types(%" PRIx64 ") is unsupported by hns3's RSS",
1468                          rss_flow_conf.types);
1469                 return -EINVAL;
1470         }
1471
1472         /* Filter the unsupported flow types */
1473         flow_types = rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT;
1474         if (flow_types != rss_flow_conf.types)
1475                 hns3_warn(hw, "modified RSS types based on hardware support, "
1476                               "requested:%" PRIx64 " configured:%" PRIx64,
1477                           rss_flow_conf.types, flow_types);
1478         /* Update the useful flow types */
1479         rss_flow_conf.types = flow_types;
1480
1481         if ((rss_flow_conf.types & ETH_RSS_PROTO_MASK) == 0)
1482                 return hns3_disable_rss(hw);
1483
1484         rss_info = &hw->rss_info;
1485         if (!add) {
1486                 if (hns3_action_rss_same(&rss_info->conf, &rss_flow_conf)) {
1487                         ret = hns3_disable_rss(hw);
1488                         if (ret) {
1489                                 hns3_err(hw, "RSS disable failed(%d)", ret);
1490                                 return ret;
1491                         }
1492                         memset(rss_info, 0, sizeof(struct hns3_rss_conf));
1493                         return 0;
1494                 }
1495                 return -EINVAL;
1496         }
1497
1498         /* Get rx queues num */
1499         num = dev->data->nb_rx_queues;
1500
1501         /* Set rx queues to use */
1502         num = RTE_MIN(num, rss_flow_conf.queue_num);
1503         if (rss_flow_conf.queue_num > num)
1504                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1505                           rss_flow_conf.queue_num);
1506         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1507
1508         rte_spinlock_lock(&hw->lock);
1509         /* Update redirection talbe of rss */
1510         ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1511         if (ret)
1512                 goto rss_config_err;
1513
1514         /* Set hash algorithm and flow types by the user's config */
1515         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1516         if (ret)
1517                 goto rss_config_err;
1518
1519         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1520         if (ret) {
1521                 hns3_err(hw, "RSS config init fail(%d)", ret);
1522                 goto rss_config_err;
1523         }
1524
1525 rss_config_err:
1526         rte_spinlock_unlock(&hw->lock);
1527
1528         return ret;
1529 }
1530
1531 /* Remove the rss filter */
1532 static int
1533 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1534 {
1535         struct hns3_adapter *hns = dev->data->dev_private;
1536         struct hns3_hw *hw = &hns->hw;
1537
1538         if (hw->rss_info.conf.queue_num == 0)
1539                 return 0;
1540
1541         return hns3_config_rss_filter(dev, &hw->rss_info, false);
1542 }
1543
1544 static int
1545 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1546                     const struct hns3_rss_conf *conf, bool add)
1547 {
1548         struct hns3_adapter *hns = dev->data->dev_private;
1549         struct hns3_hw *hw = &hns->hw;
1550         bool ret;
1551
1552         /* Action rss same */
1553         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1554         if (ret) {
1555                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1556                 return -EINVAL;
1557         }
1558
1559         return hns3_config_rss_filter(dev, conf, add);
1560 }
1561
1562 static int
1563 hns3_flow_args_check(const struct rte_flow_attr *attr,
1564                      const struct rte_flow_item pattern[],
1565                      const struct rte_flow_action actions[],
1566                      struct rte_flow_error *error)
1567 {
1568         if (pattern == NULL)
1569                 return rte_flow_error_set(error, EINVAL,
1570                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1571                                           NULL, "NULL pattern.");
1572
1573         if (actions == NULL)
1574                 return rte_flow_error_set(error, EINVAL,
1575                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1576                                           NULL, "NULL action.");
1577
1578         if (attr == NULL)
1579                 return rte_flow_error_set(error, EINVAL,
1580                                           RTE_FLOW_ERROR_TYPE_ATTR,
1581                                           NULL, "NULL attribute.");
1582
1583         return hns3_check_attr(attr, error);
1584 }
1585
1586 /*
1587  * Check if the flow rule is supported by hns3.
1588  * It only checkes the format. Don't guarantee the rule can be programmed into
1589  * the HW. Because there can be no enough room for the rule.
1590  */
1591 static int
1592 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1593                    const struct rte_flow_item pattern[],
1594                    const struct rte_flow_action actions[],
1595                    struct rte_flow_error *error)
1596 {
1597         struct hns3_fdir_rule fdir_rule;
1598         int ret;
1599
1600         ret = hns3_flow_args_check(attr, pattern, actions, error);
1601         if (ret)
1602                 return ret;
1603
1604         if (find_rss_action(actions))
1605                 return hns3_parse_rss_filter(dev, actions, error);
1606
1607         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1608         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1609 }
1610
1611 /*
1612  * Create or destroy a flow rule.
1613  * Theorically one rule can match more than one filters.
1614  * We will let it use the filter which it hitt first.
1615  * So, the sequence matters.
1616  */
1617 static struct rte_flow *
1618 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1619                  const struct rte_flow_item pattern[],
1620                  const struct rte_flow_action actions[],
1621                  struct rte_flow_error *error)
1622 {
1623         struct hns3_process_private *process_list = dev->process_private;
1624         struct hns3_adapter *hns = dev->data->dev_private;
1625         struct hns3_hw *hw = &hns->hw;
1626         const struct hns3_rss_conf *rss_conf;
1627         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1628         struct hns3_rss_conf_ele *rss_filter_ptr;
1629         struct hns3_flow_mem *flow_node;
1630         const struct rte_flow_action *act;
1631         struct rte_flow *flow;
1632         struct hns3_fdir_rule fdir_rule;
1633         int ret;
1634
1635         ret = hns3_flow_args_check(attr, pattern, actions, error);
1636         if (ret)
1637                 return NULL;
1638
1639         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1640         if (flow == NULL) {
1641                 rte_flow_error_set(error, ENOMEM,
1642                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1643                                    "Failed to allocate flow memory");
1644                 return NULL;
1645         }
1646         flow_node = rte_zmalloc("hns3 flow node",
1647                                 sizeof(struct hns3_flow_mem), 0);
1648         if (flow_node == NULL) {
1649                 rte_flow_error_set(error, ENOMEM,
1650                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1651                                    "Failed to allocate flow list memory");
1652                 rte_free(flow);
1653                 return NULL;
1654         }
1655
1656         flow_node->flow = flow;
1657         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1658
1659         act = find_rss_action(actions);
1660         if (act) {
1661                 rss_conf = act->conf;
1662
1663                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1664                 if (ret)
1665                         goto err;
1666
1667                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1668                                              sizeof(struct hns3_rss_conf_ele),
1669                                              0);
1670                 if (rss_filter_ptr == NULL) {
1671                         hns3_err(hw,
1672                                     "Failed to allocate hns3_rss_filter memory");
1673                         ret = -ENOMEM;
1674                         goto err;
1675                 }
1676                 memcpy(&rss_filter_ptr->filter_info, rss_conf,
1677                         sizeof(struct hns3_rss_conf));
1678                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1679                                   rss_filter_ptr, entries);
1680
1681                 flow->rule = rss_filter_ptr;
1682                 flow->filter_type = RTE_ETH_FILTER_HASH;
1683                 return flow;
1684         }
1685
1686         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1687         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1688         if (ret)
1689                 goto out;
1690
1691         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1692                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1693                                        fdir_rule.act_cnt.id, error);
1694                 if (ret)
1695                         goto out;
1696
1697                 flow->counter_id = fdir_rule.act_cnt.id;
1698         }
1699         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1700         if (!ret) {
1701                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1702                                             sizeof(struct hns3_fdir_rule_ele),
1703                                             0);
1704                 if (fdir_rule_ptr == NULL) {
1705                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1706                         ret = -ENOMEM;
1707                         goto err_fdir;
1708                 }
1709                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1710                         sizeof(struct hns3_fdir_rule));
1711                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1712                                   fdir_rule_ptr, entries);
1713                 flow->rule = fdir_rule_ptr;
1714                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1715
1716                 return flow;
1717         }
1718
1719 err_fdir:
1720         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1721                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1722
1723 err:
1724         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1725                            "Failed to create flow");
1726 out:
1727         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1728         rte_free(flow_node);
1729         rte_free(flow);
1730         return NULL;
1731 }
1732
1733 /* Destroy a flow rule on hns3. */
1734 static int
1735 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1736                   struct rte_flow_error *error)
1737 {
1738         struct hns3_process_private *process_list = dev->process_private;
1739         struct hns3_adapter *hns = dev->data->dev_private;
1740         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1741         struct hns3_rss_conf_ele *rss_filter_ptr;
1742         struct hns3_flow_mem *flow_node;
1743         struct hns3_hw *hw = &hns->hw;
1744         enum rte_filter_type filter_type;
1745         struct hns3_fdir_rule fdir_rule;
1746         int ret;
1747
1748         if (flow == NULL)
1749                 return rte_flow_error_set(error, EINVAL,
1750                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1751                                           flow, "Flow is NULL");
1752         filter_type = flow->filter_type;
1753         switch (filter_type) {
1754         case RTE_ETH_FILTER_FDIR:
1755                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1756                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1757                            sizeof(struct hns3_fdir_rule));
1758
1759                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1760                 if (ret)
1761                         return rte_flow_error_set(error, EIO,
1762                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1763                                                   flow,
1764                                                   "Destroy FDIR fail.Try again");
1765                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1766                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1767                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1768                 rte_free(fdir_rule_ptr);
1769                 fdir_rule_ptr = NULL;
1770                 break;
1771         case RTE_ETH_FILTER_HASH:
1772                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1773                 ret = hns3_config_rss_filter(dev, &hw->rss_info, false);
1774                 if (ret)
1775                         return rte_flow_error_set(error, EIO,
1776                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1777                                                   flow,
1778                                                   "Destroy RSS fail.Try again");
1779                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1780                              entries);
1781                 rte_free(rss_filter_ptr);
1782                 rss_filter_ptr = NULL;
1783                 break;
1784         default:
1785                 return rte_flow_error_set(error, EINVAL,
1786                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1787                                           "Unsupported filter type");
1788         }
1789
1790         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1791                 if (flow_node->flow == flow) {
1792                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1793                                      entries);
1794                         rte_free(flow_node);
1795                         flow_node = NULL;
1796                         break;
1797                 }
1798         }
1799         rte_free(flow);
1800         flow = NULL;
1801
1802         return 0;
1803 }
1804
1805 /*  Destroy all flow rules associated with a port on hns3. */
1806 static int
1807 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1808 {
1809         struct hns3_adapter *hns = dev->data->dev_private;
1810         int ret;
1811
1812         /* FDIR is available only in PF driver */
1813         if (!hns->is_vf) {
1814                 ret = hns3_clear_all_fdir_filter(hns);
1815                 if (ret) {
1816                         rte_flow_error_set(error, ret,
1817                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1818                                            NULL, "Failed to flush rule");
1819                         return ret;
1820                 }
1821                 hns3_counter_flush(dev);
1822         }
1823
1824         ret = hns3_clear_rss_filter(dev);
1825         if (ret)
1826                 return ret;
1827
1828         hns3_filterlist_flush(dev);
1829
1830         return 0;
1831 }
1832
1833 /* Query an existing flow rule. */
1834 static int
1835 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1836                 const struct rte_flow_action *actions, void *data,
1837                 struct rte_flow_error *error)
1838 {
1839         struct rte_flow_query_count *qc;
1840         int ret;
1841
1842         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1843                 switch (actions->type) {
1844                 case RTE_FLOW_ACTION_TYPE_VOID:
1845                         break;
1846                 case RTE_FLOW_ACTION_TYPE_COUNT:
1847                         qc = (struct rte_flow_query_count *)data;
1848                         ret = hns3_counter_query(dev, flow, qc, error);
1849                         if (ret)
1850                                 return ret;
1851                         break;
1852                 default:
1853                         return rte_flow_error_set(error, ENOTSUP,
1854                                                   RTE_FLOW_ERROR_TYPE_ACTION,
1855                                                   actions,
1856                                                   "Query action only support count");
1857                 }
1858         }
1859         return 0;
1860 }
1861
1862 static const struct rte_flow_ops hns3_flow_ops = {
1863         .validate = hns3_flow_validate,
1864         .create = hns3_flow_create,
1865         .destroy = hns3_flow_destroy,
1866         .flush = hns3_flow_flush,
1867         .query = hns3_flow_query,
1868         .isolate = NULL,
1869 };
1870
1871 /*
1872  * The entry of flow API.
1873  * @param dev
1874  *   Pointer to Ethernet device.
1875  * @return
1876  *   0 on success, a negative errno value otherwise is set.
1877  */
1878 int
1879 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
1880                      enum rte_filter_op filter_op, void *arg)
1881 {
1882         struct hns3_hw *hw;
1883         int ret = 0;
1884
1885         if (dev == NULL)
1886                 return -EINVAL;
1887         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1888         switch (filter_type) {
1889         case RTE_ETH_FILTER_GENERIC:
1890                 if (filter_op != RTE_ETH_FILTER_GET)
1891                         return -EINVAL;
1892                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
1893                         return -ENODEV;
1894                 *(const void **)arg = &hns3_flow_ops;
1895                 break;
1896         default:
1897                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
1898                 ret = -EOPNOTSUPP;
1899                 break;
1900         }
1901
1902         return ret;
1903 }