drivers/net/hns3/hns3_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2021 HiSilicon Limited.
   3  */
   4
   5 #include <rte_flow_driver.h>
   6 #include <rte_io.h>
   7 #include <rte_malloc.h>
   8
   9 #include "hns3_ethdev.h"
  10 #include "hns3_logs.h"
  11
  12 /* Default default keys */
  13 static uint8_t hns3_hash_key[] = {
  14         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
  15         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
  16         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
  17         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
  18         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
  19 };
  20
  21 static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
  22 static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
  23
  24 /* Special Filter id for non-specific packet flagging. Don't change value */
  25 #define HNS3_MAX_FILTER_ID      0x0FFF
  26
  27 #define ETHER_TYPE_MASK         0xFFFF
  28 #define IPPROTO_MASK            0xFF
  29 #define TUNNEL_TYPE_MASK        0xFFFF
  30
  31 #define HNS3_TUNNEL_TYPE_VXLAN          0x12B5
  32 #define HNS3_TUNNEL_TYPE_VXLAN_GPE      0x12B6
  33 #define HNS3_TUNNEL_TYPE_GENEVE         0x17C1
  34 #define HNS3_TUNNEL_TYPE_NVGRE          0x6558
  35
  36 static enum rte_flow_item_type first_items[] = {
  37         RTE_FLOW_ITEM_TYPE_ETH,
  38         RTE_FLOW_ITEM_TYPE_IPV4,
  39         RTE_FLOW_ITEM_TYPE_IPV6,
  40         RTE_FLOW_ITEM_TYPE_TCP,
  41         RTE_FLOW_ITEM_TYPE_UDP,
  42         RTE_FLOW_ITEM_TYPE_SCTP,
  43         RTE_FLOW_ITEM_TYPE_ICMP,
  44         RTE_FLOW_ITEM_TYPE_NVGRE,
  45         RTE_FLOW_ITEM_TYPE_VXLAN,
  46         RTE_FLOW_ITEM_TYPE_GENEVE,
  47         RTE_FLOW_ITEM_TYPE_VXLAN_GPE
  48 };
  49
  50 static enum rte_flow_item_type L2_next_items[] = {
  51         RTE_FLOW_ITEM_TYPE_VLAN,
  52         RTE_FLOW_ITEM_TYPE_IPV4,
  53         RTE_FLOW_ITEM_TYPE_IPV6
  54 };
  55
  56 static enum rte_flow_item_type L3_next_items[] = {
  57         RTE_FLOW_ITEM_TYPE_TCP,
  58         RTE_FLOW_ITEM_TYPE_UDP,
  59         RTE_FLOW_ITEM_TYPE_SCTP,
  60         RTE_FLOW_ITEM_TYPE_NVGRE,
  61         RTE_FLOW_ITEM_TYPE_ICMP
  62 };
  63
  64 static enum rte_flow_item_type L4_next_items[] = {
  65         RTE_FLOW_ITEM_TYPE_VXLAN,
  66         RTE_FLOW_ITEM_TYPE_GENEVE,
  67         RTE_FLOW_ITEM_TYPE_VXLAN_GPE
  68 };
  69
  70 static enum rte_flow_item_type tunnel_next_items[] = {
  71         RTE_FLOW_ITEM_TYPE_ETH,
  72         RTE_FLOW_ITEM_TYPE_VLAN
  73 };
  74
  75 struct items_step_mngr {
  76         enum rte_flow_item_type *items;
  77         int count;
  78 };
  79
  80 static inline void
  81 net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
  82 {
  83         size_t i;
  84
  85         for (i = 0; i < len; i++)
  86                 dst[i] = rte_be_to_cpu_32(src[i]);
  87 }
  88
  89 /*
  90  * This function is used to find rss general action.
  91  * 1. As we know RSS is used to spread packets among several queues, the flow
  92  *    API provide the struct rte_flow_action_rss, user could config its field
  93  *    sush as: func/level/types/key/queue to control RSS function.
  94  * 2. The flow API also supports queue region configuration for hns3. It was
  95  *    implemented by FDIR + RSS in hns3 hardware, user can create one FDIR rule
  96  *    which action is RSS queues region.
  97  * 3. When action is RSS, we use the following rule to distinguish:
  98  *    Case 1: pattern have ETH and action's queue_num > 0, indicate it is queue
  99  *            region configuration.
 100  *    Case other: an rss general action.
 101  */
 102 static const struct rte_flow_action *
 103 hns3_find_rss_general_action(const struct rte_flow_item pattern[],
 104                              const struct rte_flow_action actions[])
 105 {
 106         const struct rte_flow_action *act = NULL;
 107         const struct hns3_rss_conf *rss;
 108         bool have_eth = false;
 109
 110         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 111                 if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
 112                         act = actions;
 113                         break;
 114                 }
 115         }
 116         if (!act)
 117                 return NULL;
 118
 119         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
 120                 if (pattern->type == RTE_FLOW_ITEM_TYPE_ETH) {
 121                         have_eth = true;
 122                         break;
 123                 }
 124         }
 125
 126         rss = act->conf;
 127         if (have_eth && rss->conf.queue_num) {
 128                 /*
 129                  * Pattern have ETH and action's queue_num > 0, indicate this is
 130                  * queue region configuration.
 131                  * Because queue region is implemented by FDIR + RSS in hns3
 132                  * hardware, it needs to enter FDIR process, so here return NULL
 133                  * to avoid enter RSS process.
 134                  */
 135                 return NULL;
 136         }
 137
 138         return act;
 139 }
 140
 141 static inline struct hns3_flow_counter *
 142 hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
 143 {
 144         struct hns3_adapter *hns = dev->data->dev_private;
 145         struct hns3_pf *pf = &hns->pf;
 146         struct hns3_flow_counter *cnt;
 147
 148         LIST_FOREACH(cnt, &pf->flow_counters, next) {
 149                 if (cnt->id == id)
 150                         return cnt;
 151         }
 152         return NULL;
 153 }
 154
 155 static int
 156 hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
 157                  struct rte_flow_error *error)
 158 {
 159         struct hns3_adapter *hns = dev->data->dev_private;
 160         struct hns3_pf *pf = &hns->pf;
 161         struct hns3_flow_counter *cnt;
 162
 163         cnt = hns3_counter_lookup(dev, id);
 164         if (cnt) {
 165                 if (!cnt->shared || cnt->shared != shared)
 166                         return rte_flow_error_set(error, ENOTSUP,
 167                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 168                                 cnt,
 169                                 "Counter id is used, shared flag not match");
 170                 cnt->ref_cnt++;
 171                 return 0;
 172         }
 173
 174         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
 175         if (cnt == NULL)
 176                 return rte_flow_error_set(error, ENOMEM,
 177                                           RTE_FLOW_ERROR_TYPE_HANDLE, cnt,
 178                                           "Alloc mem for counter failed");
 179         cnt->id = id;
 180         cnt->shared = shared;
 181         cnt->ref_cnt = 1;
 182         cnt->hits = 0;
 183         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
 184         return 0;
 185 }
 186
 187 static int
 188 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
 189                    struct rte_flow_query_count *qc,
 190                    struct rte_flow_error *error)
 191 {
 192         struct hns3_adapter *hns = dev->data->dev_private;
 193         struct hns3_flow_counter *cnt;
 194         uint64_t value;
 195         int ret;
 196
 197         /* FDIR is available only in PF driver */
 198         if (hns->is_vf)
 199                 return rte_flow_error_set(error, ENOTSUP,
 200                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 201                                           "Fdir is not supported in VF");
 202         cnt = hns3_counter_lookup(dev, flow->counter_id);
 203         if (cnt == NULL)
 204                 return rte_flow_error_set(error, EINVAL,
 205                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 206                                           "Can't find counter id");
 207
 208         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
 209         if (ret) {
 210                 rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE,
 211                                    NULL, "Read counter fail.");
 212                 return ret;
 213         }
 214         qc->hits_set = 1;
 215         qc->hits = value;
 216
 217         return 0;
 218 }
 219
 220 static int
 221 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
 222 {
 223         struct hns3_adapter *hns = dev->data->dev_private;
 224         struct hns3_hw *hw = &hns->hw;
 225         struct hns3_flow_counter *cnt;
 226
 227         cnt = hns3_counter_lookup(dev, id);
 228         if (cnt == NULL) {
 229                 hns3_err(hw, "Can't find available counter to release");
 230                 return -EINVAL;
 231         }
 232         cnt->ref_cnt--;
 233         if (cnt->ref_cnt == 0) {
 234                 LIST_REMOVE(cnt, next);
 235                 rte_free(cnt);
 236         }
 237         return 0;
 238 }
 239
 240 static void
 241 hns3_counter_flush(struct rte_eth_dev *dev)
 242 {
 243         struct hns3_adapter *hns = dev->data->dev_private;
 244         struct hns3_pf *pf = &hns->pf;
 245         struct hns3_flow_counter *cnt_ptr;
 246
 247         cnt_ptr = LIST_FIRST(&pf->flow_counters);
 248         while (cnt_ptr) {
 249                 LIST_REMOVE(cnt_ptr, next);
 250                 rte_free(cnt_ptr);
 251                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
 252         }
 253 }
 254
 255 static int
 256 hns3_handle_action_queue(struct rte_eth_dev *dev,
 257                          const struct rte_flow_action *action,
 258                          struct hns3_fdir_rule *rule,
 259                          struct rte_flow_error *error)
 260 {
 261         struct hns3_adapter *hns = dev->data->dev_private;
 262         const struct rte_flow_action_queue *queue;
 263         struct hns3_hw *hw = &hns->hw;
 264
 265         queue = (const struct rte_flow_action_queue *)action->conf;
 266         if (queue->index >= hw->used_rx_queues) {
 267                 hns3_err(hw, "queue ID(%u) is greater than number of "
 268                           "available queue (%u) in driver.",
 269                           queue->index, hw->used_rx_queues);
 270                 return rte_flow_error_set(error, EINVAL,
 271                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 272                                           action, "Invalid queue ID in PF");
 273         }
 274
 275         rule->queue_id = queue->index;
 276         rule->nb_queues = 1;
 277         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 278         return 0;
 279 }
 280
 281 static int
 282 hns3_handle_action_queue_region(struct rte_eth_dev *dev,
 283                                 const struct rte_flow_action *action,
 284                                 struct hns3_fdir_rule *rule,
 285                                 struct rte_flow_error *error)
 286 {
 287         struct hns3_adapter *hns = dev->data->dev_private;
 288         const struct rte_flow_action_rss *conf = action->conf;
 289         struct hns3_hw *hw = &hns->hw;
 290         uint16_t idx;
 291
 292         if (!hns3_dev_fd_queue_region_supported(hw))
 293                 return rte_flow_error_set(error, ENOTSUP,
 294                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 295                         "Not support config queue region!");
 296
 297         if ((!rte_is_power_of_2(conf->queue_num)) ||
 298                 conf->queue_num > hw->rss_size_max ||
 299                 conf->queue[0] >= hw->used_rx_queues ||
 300                 conf->queue[0] + conf->queue_num > hw->used_rx_queues) {
 301                 return rte_flow_error_set(error, EINVAL,
 302                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 303                         "Invalid start queue ID and queue num! the start queue "
 304                         "ID must valid, the queue num must be power of 2 and "
 305                         "<= rss_size_max.");
 306         }
 307
 308         for (idx = 1; idx < conf->queue_num; idx++) {
 309                 if (conf->queue[idx] != conf->queue[idx - 1] + 1)
 310                         return rte_flow_error_set(error, EINVAL,
 311                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 312                                 "Invalid queue ID sequence! the queue ID "
 313                                 "must be continuous increment.");
 314         }
 315
 316         rule->queue_id = conf->queue[0];
 317         rule->nb_queues = conf->queue_num;
 318         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 319         return 0;
 320 }
 321
 322 /*
 323  * Parse actions structure from the provided pattern.
 324  * The pattern is validated as the items are copied.
 325  *
 326  * @param actions[in]
 327  * @param rule[out]
 328  *   NIC specfilc actions derived from the actions.
 329  * @param error[out]
 330  */
 331 static int
 332 hns3_handle_actions(struct rte_eth_dev *dev,
 333                     const struct rte_flow_action actions[],
 334                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 335 {
 336         struct hns3_adapter *hns = dev->data->dev_private;
 337         const struct rte_flow_action_count *act_count;
 338         const struct rte_flow_action_mark *mark;
 339         struct hns3_pf *pf = &hns->pf;
 340         uint32_t counter_num;
 341         int ret;
 342
 343         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 344                 switch (actions->type) {
 345                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 346                         ret = hns3_handle_action_queue(dev, actions, rule,
 347                                                        error);
 348                         if (ret)
 349                                 return ret;
 350                         break;
 351                 case RTE_FLOW_ACTION_TYPE_DROP:
 352                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 353                         break;
 354                 /*
 355                  * Here RSS's real action is queue region.
 356                  * Queue region is implemented by FDIR + RSS in hns3 hardware,
 357                  * the FDIR's action is one queue region (start_queue_id and
 358                  * queue_num), then RSS spread packets to the queue region by
 359                  * RSS algorigthm.
 360                  */
 361                 case RTE_FLOW_ACTION_TYPE_RSS:
 362                         ret = hns3_handle_action_queue_region(dev, actions,
 363                                                               rule, error);
 364                         if (ret)
 365                                 return ret;
 366                         break;
 367                 case RTE_FLOW_ACTION_TYPE_MARK:
 368                         mark =
 369                             (const struct rte_flow_action_mark *)actions->conf;
 370                         if (mark->id >= HNS3_MAX_FILTER_ID)
 371                                 return rte_flow_error_set(error, EINVAL,
 372                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 373                                                 actions,
 374                                                 "Invalid Mark ID");
 375                         rule->fd_id = mark->id;
 376                         rule->flags |= HNS3_RULE_FLAG_FDID;
 377                         break;
 378                 case RTE_FLOW_ACTION_TYPE_FLAG:
 379                         rule->fd_id = HNS3_MAX_FILTER_ID;
 380                         rule->flags |= HNS3_RULE_FLAG_FDID;
 381                         break;
 382                 case RTE_FLOW_ACTION_TYPE_COUNT:
 383                         act_count =
 384                             (const struct rte_flow_action_count *)actions->conf;
 385                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 386                         if (act_count->id >= counter_num)
 387                                 return rte_flow_error_set(error, EINVAL,
 388                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 389                                                 actions,
 390                                                 "Invalid counter id");
 391                         rule->act_cnt = *act_count;
 392                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 393                         break;
 394                 case RTE_FLOW_ACTION_TYPE_VOID:
 395                         break;
 396                 default:
 397                         return rte_flow_error_set(error, ENOTSUP,
 398                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 399                                                   NULL, "Unsupported action");
 400                 }
 401         }
 402
 403         return 0;
 404 }
 405
 406 static int
 407 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 408 {
 409         if (!attr->ingress)
 410                 return rte_flow_error_set(error, EINVAL,
 411                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 412                                           attr, "Ingress can't be zero");
 413         if (attr->egress)
 414                 return rte_flow_error_set(error, ENOTSUP,
 415                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 416                                           attr, "Not support egress");
 417         if (attr->transfer)
 418                 return rte_flow_error_set(error, ENOTSUP,
 419                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 420                                           attr, "No support for transfer");
 421         if (attr->priority)
 422                 return rte_flow_error_set(error, ENOTSUP,
 423                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 424                                           attr, "Not support priority");
 425         if (attr->group)
 426                 return rte_flow_error_set(error, ENOTSUP,
 427                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 428                                           attr, "Not support group");
 429         return 0;
 430 }
 431
 432 static int
 433 hns3_parse_eth(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 434                struct rte_flow_error *error __rte_unused)
 435 {
 436         const struct rte_flow_item_eth *eth_spec;
 437         const struct rte_flow_item_eth *eth_mask;
 438
 439         /* Only used to describe the protocol stack. */
 440         if (item->spec == NULL && item->mask == NULL)
 441                 return 0;
 442
 443         if (item->mask) {
 444                 eth_mask = item->mask;
 445                 if (eth_mask->type) {
 446                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 447                         rule->key_conf.mask.ether_type =
 448                             rte_be_to_cpu_16(eth_mask->type);
 449                 }
 450                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 451                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 452                         memcpy(rule->key_conf.mask.src_mac,
 453                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 454                 }
 455                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 456                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 457                         memcpy(rule->key_conf.mask.dst_mac,
 458                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 459                 }
 460         }
 461
 462         eth_spec = item->spec;
 463         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 464         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 465                RTE_ETHER_ADDR_LEN);
 466         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 467                RTE_ETHER_ADDR_LEN);
 468         return 0;
 469 }
 470
 471 static int
 472 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 473                 struct rte_flow_error *error)
 474 {
 475         const struct rte_flow_item_vlan *vlan_spec;
 476         const struct rte_flow_item_vlan *vlan_mask;
 477
 478         rule->key_conf.vlan_num++;
 479         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 480                 return rte_flow_error_set(error, EINVAL,
 481                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 482                                           "Vlan_num is more than 2");
 483
 484         /* Only used to describe the protocol stack. */
 485         if (item->spec == NULL && item->mask == NULL)
 486                 return 0;
 487
 488         if (item->mask) {
 489                 vlan_mask = item->mask;
 490                 if (vlan_mask->tci) {
 491                         if (rule->key_conf.vlan_num == 1) {
 492                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 493                                              1);
 494                                 rule->key_conf.mask.vlan_tag1 =
 495                                     rte_be_to_cpu_16(vlan_mask->tci);
 496                         } else {
 497                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 498                                              1);
 499                                 rule->key_conf.mask.vlan_tag2 =
 500                                     rte_be_to_cpu_16(vlan_mask->tci);
 501                         }
 502                 }
 503         }
 504
 505         vlan_spec = item->spec;
 506         if (rule->key_conf.vlan_num == 1)
 507                 rule->key_conf.spec.vlan_tag1 =
 508                     rte_be_to_cpu_16(vlan_spec->tci);
 509         else
 510                 rule->key_conf.spec.vlan_tag2 =
 511                     rte_be_to_cpu_16(vlan_spec->tci);
 512         return 0;
 513 }
 514
 515 static bool
 516 hns3_check_ipv4_mask_supported(const struct rte_flow_item_ipv4 *ipv4_mask)
 517 {
 518         if (ipv4_mask->hdr.total_length || ipv4_mask->hdr.packet_id ||
 519             ipv4_mask->hdr.fragment_offset || ipv4_mask->hdr.time_to_live ||
 520             ipv4_mask->hdr.hdr_checksum)
 521                 return false;
 522
 523         return true;
 524 }
 525
 526 static int
 527 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 528                 struct rte_flow_error *error)
 529 {
 530         const struct rte_flow_item_ipv4 *ipv4_spec;
 531         const struct rte_flow_item_ipv4 *ipv4_mask;
 532
 533         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 534         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 535         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 536
 537         /* Only used to describe the protocol stack. */
 538         if (item->spec == NULL && item->mask == NULL)
 539                 return 0;
 540
 541         if (item->mask) {
 542                 ipv4_mask = item->mask;
 543                 if (!hns3_check_ipv4_mask_supported(ipv4_mask)) {
 544                         return rte_flow_error_set(error, EINVAL,
 545                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 546                                                   item,
 547                                                   "Only support src & dst ip,tos,proto in IPV4");
 548                 }
 549
 550                 if (ipv4_mask->hdr.src_addr) {
 551                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 552                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 553                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 554                 }
 555
 556                 if (ipv4_mask->hdr.dst_addr) {
 557                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 558                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 559                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 560                 }
 561
 562                 if (ipv4_mask->hdr.type_of_service) {
 563                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 564                         rule->key_conf.mask.ip_tos =
 565                             ipv4_mask->hdr.type_of_service;
 566                 }
 567
 568                 if (ipv4_mask->hdr.next_proto_id) {
 569                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 570                         rule->key_conf.mask.ip_proto =
 571                             ipv4_mask->hdr.next_proto_id;
 572                 }
 573         }
 574
 575         ipv4_spec = item->spec;
 576         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 577             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 578         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 579             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 580         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 581         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 582         return 0;
 583 }
 584
 585 static int
 586 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 587                 struct rte_flow_error *error)
 588 {
 589         const struct rte_flow_item_ipv6 *ipv6_spec;
 590         const struct rte_flow_item_ipv6 *ipv6_mask;
 591
 592         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 593         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 594         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 595
 596         /* Only used to describe the protocol stack. */
 597         if (item->spec == NULL && item->mask == NULL)
 598                 return 0;
 599
 600         if (item->mask) {
 601                 ipv6_mask = item->mask;
 602                 if (ipv6_mask->hdr.vtc_flow || ipv6_mask->hdr.payload_len ||
 603                     ipv6_mask->hdr.hop_limits) {
 604                         return rte_flow_error_set(error, EINVAL,
 605                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 606                                                   item,
 607                                                   "Only support src & dst ip,proto in IPV6");
 608                 }
 609                 net_addr_to_host(rule->key_conf.mask.src_ip,
 610                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 611                                  IP_ADDR_LEN);
 612                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 613                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 614                                  IP_ADDR_LEN);
 615                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 616                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 617                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 618                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 619                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 620                 if (ipv6_mask->hdr.proto)
 621                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 622         }
 623
 624         ipv6_spec = item->spec;
 625         net_addr_to_host(rule->key_conf.spec.src_ip,
 626                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 627                          IP_ADDR_LEN);
 628         net_addr_to_host(rule->key_conf.spec.dst_ip,
 629                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 630                          IP_ADDR_LEN);
 631         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 632
 633         return 0;
 634 }
 635
 636 static bool
 637 hns3_check_tcp_mask_supported(const struct rte_flow_item_tcp *tcp_mask)
 638 {
 639         if (tcp_mask->hdr.sent_seq || tcp_mask->hdr.recv_ack ||
 640             tcp_mask->hdr.data_off || tcp_mask->hdr.tcp_flags ||
 641             tcp_mask->hdr.rx_win || tcp_mask->hdr.cksum ||
 642             tcp_mask->hdr.tcp_urp)
 643                 return false;
 644
 645         return true;
 646 }
 647
 648 static int
 649 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 650                struct rte_flow_error *error)
 651 {
 652         const struct rte_flow_item_tcp *tcp_spec;
 653         const struct rte_flow_item_tcp *tcp_mask;
 654
 655         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 656         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 657         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 658
 659         /* Only used to describe the protocol stack. */
 660         if (item->spec == NULL && item->mask == NULL)
 661                 return 0;
 662
 663         if (item->mask) {
 664                 tcp_mask = item->mask;
 665                 if (!hns3_check_tcp_mask_supported(tcp_mask)) {
 666                         return rte_flow_error_set(error, EINVAL,
 667                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 668                                                   item,
 669                                                   "Only support src & dst port in TCP");
 670                 }
 671
 672                 if (tcp_mask->hdr.src_port) {
 673                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 674                         rule->key_conf.mask.src_port =
 675                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 676                 }
 677                 if (tcp_mask->hdr.dst_port) {
 678                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 679                         rule->key_conf.mask.dst_port =
 680                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 681                 }
 682         }
 683
 684         tcp_spec = item->spec;
 685         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 686         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 687
 688         return 0;
 689 }
 690
 691 static int
 692 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 693                struct rte_flow_error *error)
 694 {
 695         const struct rte_flow_item_udp *udp_spec;
 696         const struct rte_flow_item_udp *udp_mask;
 697
 698         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 699         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 700         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 701
 702         /* Only used to describe the protocol stack. */
 703         if (item->spec == NULL && item->mask == NULL)
 704                 return 0;
 705
 706         if (item->mask) {
 707                 udp_mask = item->mask;
 708                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 709                         return rte_flow_error_set(error, EINVAL,
 710                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 711                                                   item,
 712                                                   "Only support src & dst port in UDP");
 713                 }
 714                 if (udp_mask->hdr.src_port) {
 715                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 716                         rule->key_conf.mask.src_port =
 717                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 718                 }
 719                 if (udp_mask->hdr.dst_port) {
 720                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 721                         rule->key_conf.mask.dst_port =
 722                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 723                 }
 724         }
 725
 726         udp_spec = item->spec;
 727         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 728         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 729
 730         return 0;
 731 }
 732
 733 static int
 734 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 735                 struct rte_flow_error *error)
 736 {
 737         const struct rte_flow_item_sctp *sctp_spec;
 738         const struct rte_flow_item_sctp *sctp_mask;
 739
 740         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 741         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 742         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 743
 744         /* Only used to describe the protocol stack. */
 745         if (item->spec == NULL && item->mask == NULL)
 746                 return 0;
 747
 748         if (item->mask) {
 749                 sctp_mask = item->mask;
 750                 if (sctp_mask->hdr.cksum)
 751                         return rte_flow_error_set(error, EINVAL,
 752                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 753                                                   item,
 754                                                   "Only support src & dst port in SCTP");
 755                 if (sctp_mask->hdr.src_port) {
 756                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 757                         rule->key_conf.mask.src_port =
 758                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 759                 }
 760                 if (sctp_mask->hdr.dst_port) {
 761                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 762                         rule->key_conf.mask.dst_port =
 763                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 764                 }
 765                 if (sctp_mask->hdr.tag) {
 766                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 767                         rule->key_conf.mask.sctp_tag =
 768                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 769                 }
 770         }
 771
 772         sctp_spec = item->spec;
 773         rule->key_conf.spec.src_port =
 774             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 775         rule->key_conf.spec.dst_port =
 776             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 777         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 778
 779         return 0;
 780 }
 781
 782 /*
 783  * Check items before tunnel, save inner configs to outer configs, and clear
 784  * inner configs.
 785  * The key consists of two parts: meta_data and tuple keys.
 786  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 787  * packet(1bit).
 788  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 789  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 790  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 791  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 792  * Vlantag2(16bit) and sctp-tag(32bit).
 793  */
 794 static int
 795 hns3_handle_tunnel(const struct rte_flow_item *item,
 796                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 797 {
 798         /* check eth config */
 799         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 800                 return rte_flow_error_set(error, EINVAL,
 801                                           RTE_FLOW_ERROR_TYPE_ITEM,
 802                                           item, "Outer eth mac is unsupported");
 803         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 804                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 805                 rule->key_conf.spec.outer_ether_type =
 806                     rule->key_conf.spec.ether_type;
 807                 rule->key_conf.mask.outer_ether_type =
 808                     rule->key_conf.mask.ether_type;
 809                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 810                 rule->key_conf.spec.ether_type = 0;
 811                 rule->key_conf.mask.ether_type = 0;
 812         }
 813
 814         /* check vlan config */
 815         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 816                 return rte_flow_error_set(error, EINVAL,
 817                                           RTE_FLOW_ERROR_TYPE_ITEM,
 818                                           item,
 819                                           "Outer vlan tags is unsupported");
 820
 821         /* clear vlan_num for inner vlan select */
 822         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 823         rule->key_conf.vlan_num = 0;
 824
 825         /* check L3 config */
 826         if (rule->input_set &
 827             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 828                 return rte_flow_error_set(error, EINVAL,
 829                                           RTE_FLOW_ERROR_TYPE_ITEM,
 830                                           item, "Outer ip is unsupported");
 831         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 832                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 833                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 834                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 835                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 836                 rule->key_conf.spec.ip_proto = 0;
 837                 rule->key_conf.mask.ip_proto = 0;
 838         }
 839
 840         /* check L4 config */
 841         if (rule->input_set & BIT(INNER_SCTP_TAG))
 842                 return rte_flow_error_set(error, EINVAL,
 843                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 844                                           "Outer sctp tag is unsupported");
 845
 846         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 847                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 848                 rule->key_conf.spec.outer_src_port =
 849                     rule->key_conf.spec.src_port;
 850                 rule->key_conf.mask.outer_src_port =
 851                     rule->key_conf.mask.src_port;
 852                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 853                 rule->key_conf.spec.src_port = 0;
 854                 rule->key_conf.mask.src_port = 0;
 855         }
 856         if (rule->input_set & BIT(INNER_DST_PORT)) {
 857                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 858                 rule->key_conf.spec.dst_port = 0;
 859                 rule->key_conf.mask.dst_port = 0;
 860         }
 861         return 0;
 862 }
 863
 864 static int
 865 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 866                  struct rte_flow_error *error)
 867 {
 868         const struct rte_flow_item_vxlan *vxlan_spec;
 869         const struct rte_flow_item_vxlan *vxlan_mask;
 870
 871         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 872         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 873         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 874                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 875         else
 876                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 877
 878         /* Only used to describe the protocol stack. */
 879         if (item->spec == NULL && item->mask == NULL)
 880                 return 0;
 881
 882         vxlan_mask = item->mask;
 883         vxlan_spec = item->spec;
 884
 885         if (vxlan_mask->flags)
 886                 return rte_flow_error_set(error, EINVAL,
 887                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 888                                           "Flags is not supported in VxLAN");
 889
 890         /* VNI must be totally masked or not. */
 891         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 892             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 893                 return rte_flow_error_set(error, EINVAL,
 894                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 895                                           "VNI must be totally masked or not in VxLAN");
 896         if (vxlan_mask->vni[0]) {
 897                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 898                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 899                            VNI_OR_TNI_LEN);
 900         }
 901         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 902                    VNI_OR_TNI_LEN);
 903         return 0;
 904 }
 905
 906 static int
 907 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 908                  struct rte_flow_error *error)
 909 {
 910         const struct rte_flow_item_nvgre *nvgre_spec;
 911         const struct rte_flow_item_nvgre *nvgre_mask;
 912
 913         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 914         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 915         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 916
 917         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 918         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 919         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 920         /* Only used to describe the protocol stack. */
 921         if (item->spec == NULL && item->mask == NULL)
 922                 return 0;
 923
 924         nvgre_mask = item->mask;
 925         nvgre_spec = item->spec;
 926
 927         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 928                 return rte_flow_error_set(error, EINVAL,
 929                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 930                                           "Ver/protocal is not supported in NVGRE");
 931
 932         /* TNI must be totally masked or not. */
 933         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 934             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 935                 return rte_flow_error_set(error, EINVAL,
 936                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 937                                           "TNI must be totally masked or not in NVGRE");
 938
 939         if (nvgre_mask->tni[0]) {
 940                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 941                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 942                            VNI_OR_TNI_LEN);
 943         }
 944         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 945                    VNI_OR_TNI_LEN);
 946
 947         if (nvgre_mask->flow_id) {
 948                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 949                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 950         }
 951         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 952         return 0;
 953 }
 954
 955 static int
 956 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 957                   struct rte_flow_error *error)
 958 {
 959         const struct rte_flow_item_geneve *geneve_spec;
 960         const struct rte_flow_item_geneve *geneve_mask;
 961
 962         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 963         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 964         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 965         /* Only used to describe the protocol stack. */
 966         if (item->spec == NULL && item->mask == NULL)
 967                 return 0;
 968
 969         geneve_mask = item->mask;
 970         geneve_spec = item->spec;
 971
 972         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 973                 return rte_flow_error_set(error, EINVAL,
 974                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 975                                           "Ver/protocal is not supported in GENEVE");
 976         /* VNI must be totally masked or not. */
 977         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 978             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 979                 return rte_flow_error_set(error, EINVAL,
 980                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 981                                           "VNI must be totally masked or not in GENEVE");
 982         if (geneve_mask->vni[0]) {
 983                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 984                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 985                            VNI_OR_TNI_LEN);
 986         }
 987         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
 988                    VNI_OR_TNI_LEN);
 989         return 0;
 990 }
 991
 992 static int
 993 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 994                   struct rte_flow_error *error)
 995 {
 996         int ret;
 997
 998         if (item->spec == NULL && item->mask)
 999                 return rte_flow_error_set(error, EINVAL,
1000                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1001                                           "Can't configure FDIR with mask "
1002                                           "but without spec");
1003         else if (item->spec && (item->mask == NULL))
1004                 return rte_flow_error_set(error, EINVAL,
1005                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1006                                           "Tunnel packets must configure "
1007                                           "with mask");
1008
1009         switch (item->type) {
1010         case RTE_FLOW_ITEM_TYPE_VXLAN:
1011         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1012                 ret = hns3_parse_vxlan(item, rule, error);
1013                 break;
1014         case RTE_FLOW_ITEM_TYPE_NVGRE:
1015                 ret = hns3_parse_nvgre(item, rule, error);
1016                 break;
1017         case RTE_FLOW_ITEM_TYPE_GENEVE:
1018                 ret = hns3_parse_geneve(item, rule, error);
1019                 break;
1020         default:
1021                 return rte_flow_error_set(error, ENOTSUP,
1022                                           RTE_FLOW_ERROR_TYPE_ITEM,
1023                                           NULL, "Unsupported tunnel type!");
1024         }
1025         if (ret)
1026                 return ret;
1027         return hns3_handle_tunnel(item, rule, error);
1028 }
1029
1030 static int
1031 hns3_parse_normal(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1032                   struct items_step_mngr *step_mngr,
1033                   struct rte_flow_error *error)
1034 {
1035         int ret;
1036
1037         if (item->spec == NULL && item->mask)
1038                 return rte_flow_error_set(error, EINVAL,
1039                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1040                                           "Can't configure FDIR with mask "
1041                                           "but without spec");
1042
1043         switch (item->type) {
1044         case RTE_FLOW_ITEM_TYPE_ETH:
1045                 ret = hns3_parse_eth(item, rule, error);
1046                 step_mngr->items = L2_next_items;
1047                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1048                 break;
1049         case RTE_FLOW_ITEM_TYPE_VLAN:
1050                 ret = hns3_parse_vlan(item, rule, error);
1051                 step_mngr->items = L2_next_items;
1052                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1053                 break;
1054         case RTE_FLOW_ITEM_TYPE_IPV4:
1055                 ret = hns3_parse_ipv4(item, rule, error);
1056                 step_mngr->items = L3_next_items;
1057                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1058                 break;
1059         case RTE_FLOW_ITEM_TYPE_IPV6:
1060                 ret = hns3_parse_ipv6(item, rule, error);
1061                 step_mngr->items = L3_next_items;
1062                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1063                 break;
1064         case RTE_FLOW_ITEM_TYPE_TCP:
1065                 ret = hns3_parse_tcp(item, rule, error);
1066                 step_mngr->items = L4_next_items;
1067                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1068                 break;
1069         case RTE_FLOW_ITEM_TYPE_UDP:
1070                 ret = hns3_parse_udp(item, rule, error);
1071                 step_mngr->items = L4_next_items;
1072                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1073                 break;
1074         case RTE_FLOW_ITEM_TYPE_SCTP:
1075                 ret = hns3_parse_sctp(item, rule, error);
1076                 step_mngr->items = L4_next_items;
1077                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1078                 break;
1079         default:
1080                 return rte_flow_error_set(error, ENOTSUP,
1081                                           RTE_FLOW_ERROR_TYPE_ITEM,
1082                                           NULL, "Unsupported normal type!");
1083         }
1084
1085         return ret;
1086 }
1087
1088 static int
1089 hns3_validate_item(const struct rte_flow_item *item,
1090                    struct items_step_mngr step_mngr,
1091                    struct rte_flow_error *error)
1092 {
1093         int i;
1094
1095         if (item->last)
1096                 return rte_flow_error_set(error, ENOTSUP,
1097                                           RTE_FLOW_ERROR_TYPE_ITEM_LAST, item,
1098                                           "Not supported last point for range");
1099
1100         for (i = 0; i < step_mngr.count; i++) {
1101                 if (item->type == step_mngr.items[i])
1102                         break;
1103         }
1104
1105         if (i == step_mngr.count) {
1106                 return rte_flow_error_set(error, EINVAL,
1107                                           RTE_FLOW_ERROR_TYPE_ITEM,
1108                                           item, "Inval or missing item");
1109         }
1110         return 0;
1111 }
1112
1113 static inline bool
1114 is_tunnel_packet(enum rte_flow_item_type type)
1115 {
1116         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1117             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1118             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1119             type == RTE_FLOW_ITEM_TYPE_GENEVE)
1120                 return true;
1121         return false;
1122 }
1123
1124 /*
1125  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1126  * And get the flow director filter info BTW.
1127  * UDP/TCP/SCTP PATTERN:
1128  * The first not void item can be ETH or IPV4 or IPV6
1129  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1130  * The next not void item could be UDP or TCP or SCTP (optional)
1131  * The next not void item could be RAW (for flexbyte, optional)
1132  * The next not void item must be END.
1133  * A Fuzzy Match pattern can appear at any place before END.
1134  * Fuzzy Match is optional for IPV4 but is required for IPV6
1135  * MAC VLAN PATTERN:
1136  * The first not void item must be ETH.
1137  * The second not void item must be MAC VLAN.
1138  * The next not void item must be END.
1139  * ACTION:
1140  * The first not void action should be QUEUE or DROP.
1141  * The second not void optional action should be MARK,
1142  * mark_id is a uint32_t number.
1143  * The next not void action should be END.
1144  * UDP/TCP/SCTP pattern example:
1145  * ITEM         Spec                    Mask
1146  * ETH          NULL                    NULL
1147  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1148  *              dst_addr 192.167.3.50   0xFFFFFFFF
1149  * UDP/TCP/SCTP src_port        80      0xFFFF
1150  *              dst_port        80      0xFFFF
1151  * END
1152  * MAC VLAN pattern example:
1153  * ITEM         Spec                    Mask
1154  * ETH          dst_addr
1155                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1156                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1157  * MAC VLAN     tci     0x2016          0xEFFF
1158  * END
1159  * Other members in mask and spec should set to 0x00.
1160  * Item->last should be NULL.
1161  */
1162 static int
1163 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1164                        const struct rte_flow_item pattern[],
1165                        const struct rte_flow_action actions[],
1166                        struct hns3_fdir_rule *rule,
1167                        struct rte_flow_error *error)
1168 {
1169         struct hns3_adapter *hns = dev->data->dev_private;
1170         const struct rte_flow_item *item;
1171         struct items_step_mngr step_mngr;
1172         int ret;
1173
1174         /* FDIR is available only in PF driver */
1175         if (hns->is_vf)
1176                 return rte_flow_error_set(error, ENOTSUP,
1177                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1178                                           "Fdir not supported in VF");
1179
1180         step_mngr.items = first_items;
1181         step_mngr.count = ARRAY_SIZE(first_items);
1182         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1183                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1184                         continue;
1185
1186                 ret = hns3_validate_item(item, step_mngr, error);
1187                 if (ret)
1188                         return ret;
1189
1190                 if (is_tunnel_packet(item->type)) {
1191                         ret = hns3_parse_tunnel(item, rule, error);
1192                         if (ret)
1193                                 return ret;
1194                         step_mngr.items = tunnel_next_items;
1195                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1196                 } else {
1197                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1198                         if (ret)
1199                                 return ret;
1200                 }
1201         }
1202
1203         return hns3_handle_actions(dev, actions, rule, error);
1204 }
1205
1206 void
1207 hns3_filterlist_init(struct rte_eth_dev *dev)
1208 {
1209         struct hns3_process_private *process_list = dev->process_private;
1210
1211         TAILQ_INIT(&process_list->fdir_list);
1212         TAILQ_INIT(&process_list->filter_rss_list);
1213         TAILQ_INIT(&process_list->flow_list);
1214 }
1215
1216 static void
1217 hns3_filterlist_flush(struct rte_eth_dev *dev)
1218 {
1219         struct hns3_process_private *process_list = dev->process_private;
1220         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1221         struct hns3_rss_conf_ele *rss_filter_ptr;
1222         struct hns3_flow_mem *flow_node;
1223
1224         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1225         while (fdir_rule_ptr) {
1226                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1227                 rte_free(fdir_rule_ptr);
1228                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1229         }
1230
1231         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1232         while (rss_filter_ptr) {
1233                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1234                              entries);
1235                 rte_free(rss_filter_ptr);
1236                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1237         }
1238
1239         flow_node = TAILQ_FIRST(&process_list->flow_list);
1240         while (flow_node) {
1241                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1242                 rte_free(flow_node->flow);
1243                 rte_free(flow_node);
1244                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1245         }
1246 }
1247
1248 static bool
1249 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1250                      const struct rte_flow_action_rss *with)
1251 {
1252         bool func_is_same;
1253
1254         /*
1255          * When user flush all RSS rule, RSS func is set invalid with
1256          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1257          * flushed, any validate RSS func is different with it before
1258          * flushed. Others, when user create an action RSS with RSS func
1259          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1260          * between continuous RSS flow.
1261          */
1262         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1263                 func_is_same = false;
1264         else
1265                 func_is_same = with->func ? (comp->func == with->func) : true;
1266
1267         return (func_is_same &&
1268                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1269                 comp->level == with->level && comp->key_len == with->key_len &&
1270                 comp->queue_num == with->queue_num &&
1271                 !memcmp(comp->key, with->key, with->key_len) &&
1272                 !memcmp(comp->queue, with->queue,
1273                         sizeof(*with->queue) * with->queue_num));
1274 }
1275
1276 static int
1277 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1278                    const struct rte_flow_action_rss *in)
1279 {
1280         if (in->key_len > RTE_DIM(out->key) ||
1281             in->queue_num > RTE_DIM(out->queue))
1282                 return -EINVAL;
1283         if (in->key == NULL && in->key_len)
1284                 return -EINVAL;
1285         out->conf = (struct rte_flow_action_rss) {
1286                 .func = in->func,
1287                 .level = in->level,
1288                 .types = in->types,
1289                 .key_len = in->key_len,
1290                 .queue_num = in->queue_num,
1291         };
1292         out->conf.queue = memcpy(out->queue, in->queue,
1293                                 sizeof(*in->queue) * in->queue_num);
1294         if (in->key)
1295                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1296
1297         return 0;
1298 }
1299
1300 static bool
1301 hns3_rss_input_tuple_supported(struct hns3_hw *hw,
1302                                const struct rte_flow_action_rss *rss)
1303 {
1304         /*
1305          * For IP packet, it is not supported to use src/dst port fields to RSS
1306          * hash for the following packet types.
1307          * - IPV4 FRAG | IPV4 NONFRAG | IPV6 FRAG | IPV6 NONFRAG
1308          * Besides, for Kunpeng920, the NIC HW is not supported to use src/dst
1309          * port fields to RSS hash for IPV6 SCTP packet type. However, the
1310          * Kunpeng930 and future kunpeng series support to use src/dst port
1311          * fields to RSS hash for IPv6 SCTP packet type.
1312          */
1313         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1314             (rss->types & ETH_RSS_IP ||
1315             (!hw->rss_info.ipv6_sctp_offload_supported &&
1316             rss->types & ETH_RSS_NONFRAG_IPV6_SCTP)))
1317                 return false;
1318
1319         return true;
1320 }
1321
1322 /*
1323  * This function is used to parse rss action validatation.
1324  */
1325 static int
1326 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1327                       const struct rte_flow_action *actions,
1328                       struct rte_flow_error *error)
1329 {
1330         struct hns3_adapter *hns = dev->data->dev_private;
1331         struct hns3_hw *hw = &hns->hw;
1332         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1333         const struct rte_flow_action_rss *rss;
1334         const struct rte_flow_action *act;
1335         uint32_t act_index = 0;
1336         uint16_t n;
1337
1338         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1339         rss = act->conf;
1340
1341         if (rss == NULL) {
1342                 return rte_flow_error_set(error, EINVAL,
1343                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1344                                           act, "no valid queues");
1345         }
1346
1347         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1348                 return rte_flow_error_set(error, ENOTSUP,
1349                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1350                                           "queue number configured exceeds "
1351                                           "queue buffer size driver supported");
1352
1353         for (n = 0; n < rss->queue_num; n++) {
1354                 if (rss->queue[n] < hw->alloc_rss_size)
1355                         continue;
1356                 return rte_flow_error_set(error, EINVAL,
1357                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1358                                           "queue id must be less than queue number allocated to a TC");
1359         }
1360
1361         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1362                 return rte_flow_error_set(error, EINVAL,
1363                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1364                                           act,
1365                                           "Flow types is unsupported by "
1366                                           "hns3's RSS");
1367         if (rss->func >= RTE_ETH_HASH_FUNCTION_MAX)
1368                 return rte_flow_error_set(error, ENOTSUP,
1369                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1370                                           "RSS hash func are not supported");
1371         if (rss->level)
1372                 return rte_flow_error_set(error, ENOTSUP,
1373                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1374                                           "a nonzero RSS encapsulation level is not supported");
1375         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1376                 return rte_flow_error_set(error, ENOTSUP,
1377                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1378                                           "RSS hash key must be exactly 40 bytes");
1379
1380         if (!hns3_rss_input_tuple_supported(hw, rss))
1381                 return rte_flow_error_set(error, EINVAL,
1382                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1383                                           &rss->types,
1384                                           "input RSS types are not supported");
1385
1386         act_index++;
1387
1388         /* Check if the next not void action is END */
1389         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1390         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1391                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1392                 return rte_flow_error_set(error, EINVAL,
1393                                           RTE_FLOW_ERROR_TYPE_ACTION,
1394                                           act, "Not supported action.");
1395         }
1396
1397         return 0;
1398 }
1399
1400 static int
1401 hns3_disable_rss(struct hns3_hw *hw)
1402 {
1403         int ret;
1404
1405         /* Redirected the redirection table to queue 0 */
1406         ret = hns3_rss_reset_indir_table(hw);
1407         if (ret)
1408                 return ret;
1409
1410         /* Disable RSS */
1411         hw->rss_info.conf.types = 0;
1412         hw->rss_dis_flag = true;
1413
1414         return 0;
1415 }
1416
1417 static void
1418 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1419 {
1420         if (rss_conf->key == NULL || rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1421                 hns3_warn(hw, "Default RSS hash key to be set");
1422                 rss_conf->key = hns3_hash_key;
1423                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1424         }
1425 }
1426
1427 static int
1428 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1429                          uint8_t *hash_algo)
1430 {
1431         enum rte_eth_hash_function algo_func = *func;
1432         switch (algo_func) {
1433         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1434                 /* Keep *hash_algo as what it used to be */
1435                 algo_func = hw->rss_info.conf.func;
1436                 break;
1437         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1438                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1439                 break;
1440         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1441                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1442                 break;
1443         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1444                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1445                 break;
1446         default:
1447                 hns3_err(hw, "Invalid RSS algorithm configuration(%d)",
1448                          algo_func);
1449                 return -EINVAL;
1450         }
1451         *func = algo_func;
1452
1453         return 0;
1454 }
1455
1456 static int
1457 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1458 {
1459         struct hns3_rss_tuple_cfg *tuple;
1460         int ret;
1461
1462         hns3_parse_rss_key(hw, rss_config);
1463
1464         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1465                                        &hw->rss_info.hash_algo);
1466         if (ret)
1467                 return ret;
1468
1469         ret = hns3_rss_set_algo_key(hw, rss_config->key);
1470         if (ret)
1471                 return ret;
1472
1473         hw->rss_info.conf.func = rss_config->func;
1474
1475         tuple = &hw->rss_info.rss_tuple_sets;
1476         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1477         if (ret)
1478                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1479
1480         return ret;
1481 }
1482
1483 static int
1484 hns3_update_indir_table(struct rte_eth_dev *dev,
1485                         const struct rte_flow_action_rss *conf, uint16_t num)
1486 {
1487         struct hns3_adapter *hns = dev->data->dev_private;
1488         struct hns3_hw *hw = &hns->hw;
1489         uint16_t indir_tbl[HNS3_RSS_IND_TBL_SIZE_MAX];
1490         uint16_t j;
1491         uint32_t i;
1492
1493         /* Fill in redirection table */
1494         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1495                sizeof(hw->rss_info.rss_indirection_tbl));
1496         for (i = 0, j = 0; i < hw->rss_ind_tbl_size; i++, j++) {
1497                 j %= num;
1498                 if (conf->queue[j] >= hw->alloc_rss_size) {
1499                         hns3_err(hw, "queue id(%u) set to redirection table "
1500                                  "exceeds queue number(%u) allocated to a TC.",
1501                                  conf->queue[j], hw->alloc_rss_size);
1502                         return -EINVAL;
1503                 }
1504                 indir_tbl[i] = conf->queue[j];
1505         }
1506
1507         return hns3_set_rss_indir_table(hw, indir_tbl, hw->rss_ind_tbl_size);
1508 }
1509
1510 static int
1511 hns3_config_rss_filter(struct rte_eth_dev *dev,
1512                        const struct hns3_rss_conf *conf, bool add)
1513 {
1514         struct hns3_process_private *process_list = dev->process_private;
1515         struct hns3_adapter *hns = dev->data->dev_private;
1516         struct hns3_rss_conf_ele *rss_filter_ptr;
1517         struct hns3_hw *hw = &hns->hw;
1518         struct hns3_rss_conf *rss_info;
1519         uint64_t flow_types;
1520         uint16_t num;
1521         int ret;
1522
1523         struct rte_flow_action_rss rss_flow_conf = {
1524                 .func = conf->conf.func,
1525                 .level = conf->conf.level,
1526                 .types = conf->conf.types,
1527                 .key_len = conf->conf.key_len,
1528                 .queue_num = conf->conf.queue_num,
1529                 .key = conf->conf.key_len ?
1530                     (void *)(uintptr_t)conf->conf.key : NULL,
1531                 .queue = conf->conf.queue,
1532         };
1533
1534         /* Filter the unsupported flow types */
1535         flow_types = conf->conf.types ?
1536                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1537                      hw->rss_info.conf.types;
1538         if (flow_types != rss_flow_conf.types)
1539                 hns3_warn(hw, "modified RSS types based on hardware support, "
1540                               "requested:%" PRIx64 " configured:%" PRIx64,
1541                           rss_flow_conf.types, flow_types);
1542         /* Update the useful flow types */
1543         rss_flow_conf.types = flow_types;
1544
1545         rss_info = &hw->rss_info;
1546         if (!add) {
1547                 if (!conf->valid)
1548                         return 0;
1549
1550                 ret = hns3_disable_rss(hw);
1551                 if (ret) {
1552                         hns3_err(hw, "RSS disable failed(%d)", ret);
1553                         return ret;
1554                 }
1555
1556                 if (rss_flow_conf.queue_num) {
1557                         /*
1558                          * Due the content of queue pointer have been reset to
1559                          * 0, the rss_info->conf.queue should be set to NULL
1560                          */
1561                         rss_info->conf.queue = NULL;
1562                         rss_info->conf.queue_num = 0;
1563                 }
1564
1565                 /* set RSS func invalid after flushed */
1566                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1567                 return 0;
1568         }
1569
1570         /* Set rx queues to use */
1571         num = RTE_MIN(dev->data->nb_rx_queues, rss_flow_conf.queue_num);
1572         if (rss_flow_conf.queue_num > num)
1573                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1574                           rss_flow_conf.queue_num);
1575         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1576
1577         rte_spinlock_lock(&hw->lock);
1578         if (num) {
1579                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1580                 if (ret)
1581                         goto rss_config_err;
1582         }
1583
1584         /* Set hash algorithm and flow types by the user's config */
1585         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1586         if (ret)
1587                 goto rss_config_err;
1588
1589         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1590         if (ret) {
1591                 hns3_err(hw, "RSS config init fail(%d)", ret);
1592                 goto rss_config_err;
1593         }
1594
1595         /*
1596          * When create a new RSS rule, the old rule will be overlaid and set
1597          * invalid.
1598          */
1599         TAILQ_FOREACH(rss_filter_ptr, &process_list->filter_rss_list, entries)
1600                 rss_filter_ptr->filter_info.valid = false;
1601
1602 rss_config_err:
1603         rte_spinlock_unlock(&hw->lock);
1604
1605         return ret;
1606 }
1607
1608 static int
1609 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1610 {
1611         struct hns3_process_private *process_list = dev->process_private;
1612         struct hns3_adapter *hns = dev->data->dev_private;
1613         struct hns3_rss_conf_ele *rss_filter_ptr;
1614         struct hns3_hw *hw = &hns->hw;
1615         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1616         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1617         int ret = 0;
1618
1619         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1620         while (rss_filter_ptr) {
1621                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1622                              entries);
1623                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1624                                              false);
1625                 if (ret)
1626                         rss_rule_fail_cnt++;
1627                 else
1628                         rss_rule_succ_cnt++;
1629                 rte_free(rss_filter_ptr);
1630                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1631         }
1632
1633         if (rss_rule_fail_cnt) {
1634                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1635                              "fail num = %d", rss_rule_succ_cnt,
1636                              rss_rule_fail_cnt);
1637                 ret = -EIO;
1638         }
1639
1640         return ret;
1641 }
1642
1643 int
1644 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1645 {
1646         struct hns3_adapter *hns = dev->data->dev_private;
1647         struct hns3_hw *hw = &hns->hw;
1648
1649         /* When user flush all rules, it doesn't need to restore RSS rule */
1650         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1651                 return 0;
1652
1653         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1654 }
1655
1656 static int
1657 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1658                     const struct hns3_rss_conf *conf, bool add)
1659 {
1660         struct hns3_adapter *hns = dev->data->dev_private;
1661         struct hns3_hw *hw = &hns->hw;
1662         bool ret;
1663
1664         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1665         if (ret) {
1666                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1667                 return -EINVAL;
1668         }
1669
1670         return hns3_config_rss_filter(dev, conf, add);
1671 }
1672
1673 static int
1674 hns3_flow_args_check(const struct rte_flow_attr *attr,
1675                      const struct rte_flow_item pattern[],
1676                      const struct rte_flow_action actions[],
1677                      struct rte_flow_error *error)
1678 {
1679         if (pattern == NULL)
1680                 return rte_flow_error_set(error, EINVAL,
1681                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1682                                           NULL, "NULL pattern.");
1683
1684         if (actions == NULL)
1685                 return rte_flow_error_set(error, EINVAL,
1686                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1687                                           NULL, "NULL action.");
1688
1689         if (attr == NULL)
1690                 return rte_flow_error_set(error, EINVAL,
1691                                           RTE_FLOW_ERROR_TYPE_ATTR,
1692                                           NULL, "NULL attribute.");
1693
1694         return hns3_check_attr(attr, error);
1695 }
1696
1697 /*
1698  * Check if the flow rule is supported by hns3.
1699  * It only checkes the format. Don't guarantee the rule can be programmed into
1700  * the HW. Because there can be no enough room for the rule.
1701  */
1702 static int
1703 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1704                    const struct rte_flow_item pattern[],
1705                    const struct rte_flow_action actions[],
1706                    struct rte_flow_error *error)
1707 {
1708         struct hns3_fdir_rule fdir_rule;
1709         int ret;
1710
1711         ret = hns3_flow_args_check(attr, pattern, actions, error);
1712         if (ret)
1713                 return ret;
1714
1715         if (hns3_find_rss_general_action(pattern, actions))
1716                 return hns3_parse_rss_filter(dev, actions, error);
1717
1718         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1719         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1720 }
1721
1722 /*
1723  * Create or destroy a flow rule.
1724  * Theorically one rule can match more than one filters.
1725  * We will let it use the filter which it hit first.
1726  * So, the sequence matters.
1727  */
1728 static struct rte_flow *
1729 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1730                  const struct rte_flow_item pattern[],
1731                  const struct rte_flow_action actions[],
1732                  struct rte_flow_error *error)
1733 {
1734         struct hns3_process_private *process_list = dev->process_private;
1735         struct hns3_adapter *hns = dev->data->dev_private;
1736         struct hns3_hw *hw = &hns->hw;
1737         const struct hns3_rss_conf *rss_conf;
1738         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1739         struct hns3_rss_conf_ele *rss_filter_ptr;
1740         struct hns3_flow_mem *flow_node;
1741         const struct rte_flow_action *act;
1742         struct rte_flow *flow;
1743         struct hns3_fdir_rule fdir_rule;
1744         int ret;
1745
1746         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1747         if (ret)
1748                 return NULL;
1749
1750         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1751         if (flow == NULL) {
1752                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1753                                    NULL, "Failed to allocate flow memory");
1754                 return NULL;
1755         }
1756         flow_node = rte_zmalloc("hns3 flow node",
1757                                 sizeof(struct hns3_flow_mem), 0);
1758         if (flow_node == NULL) {
1759                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1760                                    NULL, "Failed to allocate flow list memory");
1761                 rte_free(flow);
1762                 return NULL;
1763         }
1764
1765         flow_node->flow = flow;
1766         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1767
1768         act = hns3_find_rss_general_action(pattern, actions);
1769         if (act) {
1770                 rss_conf = act->conf;
1771
1772                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1773                 if (ret)
1774                         goto err;
1775
1776                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1777                                              sizeof(struct hns3_rss_conf_ele),
1778                                              0);
1779                 if (rss_filter_ptr == NULL) {
1780                         hns3_err(hw,
1781                                     "Failed to allocate hns3_rss_filter memory");
1782                         ret = -ENOMEM;
1783                         goto err;
1784                 }
1785                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1786                                    &rss_conf->conf);
1787                 rss_filter_ptr->filter_info.valid = true;
1788                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1789                                   rss_filter_ptr, entries);
1790
1791                 flow->rule = rss_filter_ptr;
1792                 flow->filter_type = RTE_ETH_FILTER_HASH;
1793                 return flow;
1794         }
1795
1796         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1797         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1798         if (ret)
1799                 goto out;
1800
1801         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1802                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1803                                        fdir_rule.act_cnt.id, error);
1804                 if (ret)
1805                         goto out;
1806
1807                 flow->counter_id = fdir_rule.act_cnt.id;
1808         }
1809
1810         fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1811                                     sizeof(struct hns3_fdir_rule_ele),
1812                                     0);
1813         if (fdir_rule_ptr == NULL) {
1814                 hns3_err(hw, "failed to allocate fdir_rule memory.");
1815                 ret = -ENOMEM;
1816                 goto err_fdir;
1817         }
1818
1819         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1820         if (!ret) {
1821                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1822                         sizeof(struct hns3_fdir_rule));
1823                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1824                                   fdir_rule_ptr, entries);
1825                 flow->rule = fdir_rule_ptr;
1826                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1827
1828                 return flow;
1829         }
1830
1831         rte_free(fdir_rule_ptr);
1832 err_fdir:
1833         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1834                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1835 err:
1836         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1837                            "Failed to create flow");
1838 out:
1839         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1840         rte_free(flow_node);
1841         rte_free(flow);
1842         return NULL;
1843 }
1844
1845 /* Destroy a flow rule on hns3. */
1846 static int
1847 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1848                   struct rte_flow_error *error)
1849 {
1850         struct hns3_process_private *process_list = dev->process_private;
1851         struct hns3_adapter *hns = dev->data->dev_private;
1852         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1853         struct hns3_rss_conf_ele *rss_filter_ptr;
1854         struct hns3_flow_mem *flow_node;
1855         enum rte_filter_type filter_type;
1856         struct hns3_fdir_rule fdir_rule;
1857         int ret;
1858
1859         if (flow == NULL)
1860                 return rte_flow_error_set(error, EINVAL,
1861                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1862                                           flow, "Flow is NULL");
1863
1864         filter_type = flow->filter_type;
1865         switch (filter_type) {
1866         case RTE_ETH_FILTER_FDIR:
1867                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1868                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1869                            sizeof(struct hns3_fdir_rule));
1870
1871                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1872                 if (ret)
1873                         return rte_flow_error_set(error, EIO,
1874                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1875                                                   flow,
1876                                                   "Destroy FDIR fail.Try again");
1877                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1878                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1879                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1880                 rte_free(fdir_rule_ptr);
1881                 fdir_rule_ptr = NULL;
1882                 break;
1883         case RTE_ETH_FILTER_HASH:
1884                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1885                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1886                                              false);
1887                 if (ret)
1888                         return rte_flow_error_set(error, EIO,
1889                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1890                                                   flow,
1891                                                   "Destroy RSS fail.Try again");
1892                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1893                              entries);
1894                 rte_free(rss_filter_ptr);
1895                 rss_filter_ptr = NULL;
1896                 break;
1897         default:
1898                 return rte_flow_error_set(error, EINVAL,
1899                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1900                                           "Unsupported filter type");
1901         }
1902
1903         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1904                 if (flow_node->flow == flow) {
1905                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1906                                      entries);
1907                         rte_free(flow_node);
1908                         flow_node = NULL;
1909                         break;
1910                 }
1911         }
1912         rte_free(flow);
1913         flow = NULL;
1914
1915         return 0;
1916 }
1917
1918 /*  Destroy all flow rules associated with a port on hns3. */
1919 static int
1920 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1921 {
1922         struct hns3_adapter *hns = dev->data->dev_private;
1923         int ret;
1924
1925         /* FDIR is available only in PF driver */
1926         if (!hns->is_vf) {
1927                 ret = hns3_clear_all_fdir_filter(hns);
1928                 if (ret) {
1929                         rte_flow_error_set(error, ret,
1930                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1931                                            NULL, "Failed to flush rule");
1932                         return ret;
1933                 }
1934                 hns3_counter_flush(dev);
1935         }
1936
1937         ret = hns3_clear_rss_filter(dev);
1938         if (ret) {
1939                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1940                                    NULL, "Failed to flush rss filter");
1941                 return ret;
1942         }
1943
1944         hns3_filterlist_flush(dev);
1945
1946         return 0;
1947 }
1948
1949 /* Query an existing flow rule. */
1950 static int
1951 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1952                 const struct rte_flow_action *actions, void *data,
1953                 struct rte_flow_error *error)
1954 {
1955         struct rte_flow_action_rss *rss_conf;
1956         struct hns3_rss_conf_ele *rss_rule;
1957         struct rte_flow_query_count *qc;
1958         int ret;
1959
1960         if (!flow->rule)
1961                 return rte_flow_error_set(error, EINVAL,
1962                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
1963
1964         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1965                 switch (actions->type) {
1966                 case RTE_FLOW_ACTION_TYPE_VOID:
1967                         break;
1968                 case RTE_FLOW_ACTION_TYPE_COUNT:
1969                         qc = (struct rte_flow_query_count *)data;
1970                         ret = hns3_counter_query(dev, flow, qc, error);
1971                         if (ret)
1972                                 return ret;
1973                         break;
1974                 case RTE_FLOW_ACTION_TYPE_RSS:
1975                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
1976                                 return rte_flow_error_set(error, ENOTSUP,
1977                                         RTE_FLOW_ERROR_TYPE_ACTION,
1978                                         actions, "action is not supported");
1979                         }
1980                         rss_conf = (struct rte_flow_action_rss *)data;
1981                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
1982                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
1983                                    sizeof(struct rte_flow_action_rss));
1984                         break;
1985                 default:
1986                         return rte_flow_error_set(error, ENOTSUP,
1987                                 RTE_FLOW_ERROR_TYPE_ACTION,
1988                                 actions, "action is not supported");
1989                 }
1990         }
1991
1992         return 0;
1993 }
1994
1995 static const struct rte_flow_ops hns3_flow_ops = {
1996         .validate = hns3_flow_validate,
1997         .create = hns3_flow_create,
1998         .destroy = hns3_flow_destroy,
1999         .flush = hns3_flow_flush,
2000         .query = hns3_flow_query,
2001         .isolate = NULL,
2002 };
2003
2004 int
2005 hns3_dev_flow_ops_get(struct rte_eth_dev *dev,
2006                       const struct rte_flow_ops **ops)
2007 {
2008         struct hns3_hw *hw;
2009
2010         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2011         if (hw->adapter_state >= HNS3_NIC_CLOSED)
2012                 return -ENODEV;
2013
2014         *ops = &hns3_flow_ops;
2015         return 0;
2016 }