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_hw *hw = &hns->hw;
 162         struct hns3_flow_counter *cnt;
 163         uint64_t value;
 164         int ret;
 165
 166         cnt = hns3_counter_lookup(dev, id);
 167         if (cnt) {
 168                 if (!cnt->shared || cnt->shared != shared)
 169                         return rte_flow_error_set(error, ENOTSUP,
 170                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 171                                 cnt,
 172                                 "Counter id is used, shared flag not match");
 173                 cnt->ref_cnt++;
 174                 return 0;
 175         }
 176
 177         /* Clear the counter by read ops because the counter is read-clear */
 178         ret = hns3_get_count(hw, id, &value);
 179         if (ret)
 180                 return rte_flow_error_set(error, EIO,
 181                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 182                                           "Clear counter failed!");
 183
 184         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
 185         if (cnt == NULL)
 186                 return rte_flow_error_set(error, ENOMEM,
 187                                           RTE_FLOW_ERROR_TYPE_HANDLE, cnt,
 188                                           "Alloc mem for counter failed");
 189         cnt->id = id;
 190         cnt->shared = shared;
 191         cnt->ref_cnt = 1;
 192         cnt->hits = 0;
 193         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
 194         return 0;
 195 }
 196
 197 static int
 198 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
 199                    struct rte_flow_query_count *qc,
 200                    struct rte_flow_error *error)
 201 {
 202         struct hns3_adapter *hns = dev->data->dev_private;
 203         struct hns3_flow_counter *cnt;
 204         uint64_t value;
 205         int ret;
 206
 207         /* FDIR is available only in PF driver */
 208         if (hns->is_vf)
 209                 return rte_flow_error_set(error, ENOTSUP,
 210                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 211                                           "Fdir is not supported in VF");
 212         cnt = hns3_counter_lookup(dev, flow->counter_id);
 213         if (cnt == NULL)
 214                 return rte_flow_error_set(error, EINVAL,
 215                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 216                                           "Can't find counter id");
 217
 218         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
 219         if (ret) {
 220                 rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE,
 221                                    NULL, "Read counter fail.");
 222                 return ret;
 223         }
 224         qc->hits_set = 1;
 225         qc->hits = value;
 226         qc->bytes_set = 0;
 227         qc->bytes = 0;
 228
 229         return 0;
 230 }
 231
 232 static int
 233 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
 234 {
 235         struct hns3_adapter *hns = dev->data->dev_private;
 236         struct hns3_hw *hw = &hns->hw;
 237         struct hns3_flow_counter *cnt;
 238
 239         cnt = hns3_counter_lookup(dev, id);
 240         if (cnt == NULL) {
 241                 hns3_err(hw, "Can't find available counter to release");
 242                 return -EINVAL;
 243         }
 244         cnt->ref_cnt--;
 245         if (cnt->ref_cnt == 0) {
 246                 LIST_REMOVE(cnt, next);
 247                 rte_free(cnt);
 248         }
 249         return 0;
 250 }
 251
 252 static void
 253 hns3_counter_flush(struct rte_eth_dev *dev)
 254 {
 255         struct hns3_adapter *hns = dev->data->dev_private;
 256         struct hns3_pf *pf = &hns->pf;
 257         struct hns3_flow_counter *cnt_ptr;
 258
 259         cnt_ptr = LIST_FIRST(&pf->flow_counters);
 260         while (cnt_ptr) {
 261                 LIST_REMOVE(cnt_ptr, next);
 262                 rte_free(cnt_ptr);
 263                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
 264         }
 265 }
 266
 267 static int
 268 hns3_handle_action_queue(struct rte_eth_dev *dev,
 269                          const struct rte_flow_action *action,
 270                          struct hns3_fdir_rule *rule,
 271                          struct rte_flow_error *error)
 272 {
 273         struct hns3_adapter *hns = dev->data->dev_private;
 274         const struct rte_flow_action_queue *queue;
 275         struct hns3_hw *hw = &hns->hw;
 276
 277         queue = (const struct rte_flow_action_queue *)action->conf;
 278         if (queue->index >= hw->data->nb_rx_queues) {
 279                 hns3_err(hw, "queue ID(%u) is greater than number of "
 280                           "available queue (%u) in driver.",
 281                           queue->index, hw->data->nb_rx_queues);
 282                 return rte_flow_error_set(error, EINVAL,
 283                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 284                                           action, "Invalid queue ID in PF");
 285         }
 286
 287         rule->queue_id = queue->index;
 288         rule->nb_queues = 1;
 289         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 290         return 0;
 291 }
 292
 293 static int
 294 hns3_handle_action_queue_region(struct rte_eth_dev *dev,
 295                                 const struct rte_flow_action *action,
 296                                 struct hns3_fdir_rule *rule,
 297                                 struct rte_flow_error *error)
 298 {
 299         struct hns3_adapter *hns = dev->data->dev_private;
 300         const struct rte_flow_action_rss *conf = action->conf;
 301         struct hns3_hw *hw = &hns->hw;
 302         uint16_t idx;
 303
 304         if (!hns3_dev_get_support(hw, FD_QUEUE_REGION))
 305                 return rte_flow_error_set(error, ENOTSUP,
 306                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 307                         "Not support config queue region!");
 308
 309         if ((!rte_is_power_of_2(conf->queue_num)) ||
 310                 conf->queue_num > hw->rss_size_max ||
 311                 conf->queue[0] >= hw->data->nb_rx_queues ||
 312                 conf->queue[0] + conf->queue_num > hw->data->nb_rx_queues) {
 313                 return rte_flow_error_set(error, EINVAL,
 314                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 315                         "Invalid start queue ID and queue num! the start queue "
 316                         "ID must valid, the queue num must be power of 2 and "
 317                         "<= rss_size_max.");
 318         }
 319
 320         for (idx = 1; idx < conf->queue_num; idx++) {
 321                 if (conf->queue[idx] != conf->queue[idx - 1] + 1)
 322                         return rte_flow_error_set(error, EINVAL,
 323                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 324                                 "Invalid queue ID sequence! the queue ID "
 325                                 "must be continuous increment.");
 326         }
 327
 328         rule->queue_id = conf->queue[0];
 329         rule->nb_queues = conf->queue_num;
 330         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 331         return 0;
 332 }
 333
 334 /*
 335  * Parse actions structure from the provided pattern.
 336  * The pattern is validated as the items are copied.
 337  *
 338  * @param actions[in]
 339  * @param rule[out]
 340  *   NIC specfilc actions derived from the actions.
 341  * @param error[out]
 342  */
 343 static int
 344 hns3_handle_actions(struct rte_eth_dev *dev,
 345                     const struct rte_flow_action actions[],
 346                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 347 {
 348         struct hns3_adapter *hns = dev->data->dev_private;
 349         const struct rte_flow_action_count *act_count;
 350         const struct rte_flow_action_mark *mark;
 351         struct hns3_pf *pf = &hns->pf;
 352         uint32_t counter_num;
 353         int ret;
 354
 355         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 356                 switch (actions->type) {
 357                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 358                         ret = hns3_handle_action_queue(dev, actions, rule,
 359                                                        error);
 360                         if (ret)
 361                                 return ret;
 362                         break;
 363                 case RTE_FLOW_ACTION_TYPE_DROP:
 364                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 365                         break;
 366                 /*
 367                  * Here RSS's real action is queue region.
 368                  * Queue region is implemented by FDIR + RSS in hns3 hardware,
 369                  * the FDIR's action is one queue region (start_queue_id and
 370                  * queue_num), then RSS spread packets to the queue region by
 371                  * RSS algorigthm.
 372                  */
 373                 case RTE_FLOW_ACTION_TYPE_RSS:
 374                         ret = hns3_handle_action_queue_region(dev, actions,
 375                                                               rule, error);
 376                         if (ret)
 377                                 return ret;
 378                         break;
 379                 case RTE_FLOW_ACTION_TYPE_MARK:
 380                         mark =
 381                             (const struct rte_flow_action_mark *)actions->conf;
 382                         if (mark->id >= HNS3_MAX_FILTER_ID)
 383                                 return rte_flow_error_set(error, EINVAL,
 384                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 385                                                 actions,
 386                                                 "Invalid Mark ID");
 387                         rule->fd_id = mark->id;
 388                         rule->flags |= HNS3_RULE_FLAG_FDID;
 389                         break;
 390                 case RTE_FLOW_ACTION_TYPE_FLAG:
 391                         rule->fd_id = HNS3_MAX_FILTER_ID;
 392                         rule->flags |= HNS3_RULE_FLAG_FDID;
 393                         break;
 394                 case RTE_FLOW_ACTION_TYPE_COUNT:
 395                         act_count =
 396                             (const struct rte_flow_action_count *)actions->conf;
 397                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 398                         if (act_count->id >= counter_num)
 399                                 return rte_flow_error_set(error, EINVAL,
 400                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 401                                                 actions,
 402                                                 "Invalid counter id");
 403                         rule->act_cnt = *act_count;
 404                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 405                         break;
 406                 case RTE_FLOW_ACTION_TYPE_VOID:
 407                         break;
 408                 default:
 409                         return rte_flow_error_set(error, ENOTSUP,
 410                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 411                                                   NULL, "Unsupported action");
 412                 }
 413         }
 414
 415         return 0;
 416 }
 417
 418 static int
 419 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 420 {
 421         if (!attr->ingress)
 422                 return rte_flow_error_set(error, EINVAL,
 423                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 424                                           attr, "Ingress can't be zero");
 425         if (attr->egress)
 426                 return rte_flow_error_set(error, ENOTSUP,
 427                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 428                                           attr, "Not support egress");
 429         if (attr->transfer)
 430                 return rte_flow_error_set(error, ENOTSUP,
 431                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 432                                           attr, "No support for transfer");
 433         if (attr->priority)
 434                 return rte_flow_error_set(error, ENOTSUP,
 435                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 436                                           attr, "Not support priority");
 437         if (attr->group)
 438                 return rte_flow_error_set(error, ENOTSUP,
 439                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 440                                           attr, "Not support group");
 441         return 0;
 442 }
 443
 444 static int
 445 hns3_parse_eth(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 446                struct rte_flow_error *error __rte_unused)
 447 {
 448         const struct rte_flow_item_eth *eth_spec;
 449         const struct rte_flow_item_eth *eth_mask;
 450
 451         /* Only used to describe the protocol stack. */
 452         if (item->spec == NULL && item->mask == NULL)
 453                 return 0;
 454
 455         if (item->mask) {
 456                 eth_mask = item->mask;
 457                 if (eth_mask->type) {
 458                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 459                         rule->key_conf.mask.ether_type =
 460                             rte_be_to_cpu_16(eth_mask->type);
 461                 }
 462                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 463                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 464                         memcpy(rule->key_conf.mask.src_mac,
 465                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 466                 }
 467                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 468                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 469                         memcpy(rule->key_conf.mask.dst_mac,
 470                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 471                 }
 472         }
 473
 474         eth_spec = item->spec;
 475         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 476         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 477                RTE_ETHER_ADDR_LEN);
 478         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 479                RTE_ETHER_ADDR_LEN);
 480         return 0;
 481 }
 482
 483 static int
 484 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 485                 struct rte_flow_error *error)
 486 {
 487         const struct rte_flow_item_vlan *vlan_spec;
 488         const struct rte_flow_item_vlan *vlan_mask;
 489
 490         rule->key_conf.vlan_num++;
 491         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 492                 return rte_flow_error_set(error, EINVAL,
 493                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 494                                           "Vlan_num is more than 2");
 495
 496         /* Only used to describe the protocol stack. */
 497         if (item->spec == NULL && item->mask == NULL)
 498                 return 0;
 499
 500         if (item->mask) {
 501                 vlan_mask = item->mask;
 502                 if (vlan_mask->tci) {
 503                         if (rule->key_conf.vlan_num == 1) {
 504                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 505                                              1);
 506                                 rule->key_conf.mask.vlan_tag1 =
 507                                     rte_be_to_cpu_16(vlan_mask->tci);
 508                         } else {
 509                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 510                                              1);
 511                                 rule->key_conf.mask.vlan_tag2 =
 512                                     rte_be_to_cpu_16(vlan_mask->tci);
 513                         }
 514                 }
 515         }
 516
 517         vlan_spec = item->spec;
 518         if (rule->key_conf.vlan_num == 1)
 519                 rule->key_conf.spec.vlan_tag1 =
 520                     rte_be_to_cpu_16(vlan_spec->tci);
 521         else
 522                 rule->key_conf.spec.vlan_tag2 =
 523                     rte_be_to_cpu_16(vlan_spec->tci);
 524         return 0;
 525 }
 526
 527 static bool
 528 hns3_check_ipv4_mask_supported(const struct rte_flow_item_ipv4 *ipv4_mask)
 529 {
 530         if (ipv4_mask->hdr.total_length || ipv4_mask->hdr.packet_id ||
 531             ipv4_mask->hdr.fragment_offset || ipv4_mask->hdr.time_to_live ||
 532             ipv4_mask->hdr.hdr_checksum)
 533                 return false;
 534
 535         return true;
 536 }
 537
 538 static int
 539 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 540                 struct rte_flow_error *error)
 541 {
 542         const struct rte_flow_item_ipv4 *ipv4_spec;
 543         const struct rte_flow_item_ipv4 *ipv4_mask;
 544
 545         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 546         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 547         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 548
 549         /* Only used to describe the protocol stack. */
 550         if (item->spec == NULL && item->mask == NULL)
 551                 return 0;
 552
 553         if (item->mask) {
 554                 ipv4_mask = item->mask;
 555                 if (!hns3_check_ipv4_mask_supported(ipv4_mask)) {
 556                         return rte_flow_error_set(error, EINVAL,
 557                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 558                                                   item,
 559                                                   "Only support src & dst ip,tos,proto in IPV4");
 560                 }
 561
 562                 if (ipv4_mask->hdr.src_addr) {
 563                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 564                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 565                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 566                 }
 567
 568                 if (ipv4_mask->hdr.dst_addr) {
 569                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 570                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 571                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 572                 }
 573
 574                 if (ipv4_mask->hdr.type_of_service) {
 575                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 576                         rule->key_conf.mask.ip_tos =
 577                             ipv4_mask->hdr.type_of_service;
 578                 }
 579
 580                 if (ipv4_mask->hdr.next_proto_id) {
 581                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 582                         rule->key_conf.mask.ip_proto =
 583                             ipv4_mask->hdr.next_proto_id;
 584                 }
 585         }
 586
 587         ipv4_spec = item->spec;
 588         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 589             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 590         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 591             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 592         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 593         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 594         return 0;
 595 }
 596
 597 static int
 598 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 599                 struct rte_flow_error *error)
 600 {
 601         const struct rte_flow_item_ipv6 *ipv6_spec;
 602         const struct rte_flow_item_ipv6 *ipv6_mask;
 603
 604         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 605         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 606         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 607
 608         /* Only used to describe the protocol stack. */
 609         if (item->spec == NULL && item->mask == NULL)
 610                 return 0;
 611
 612         if (item->mask) {
 613                 ipv6_mask = item->mask;
 614                 if (ipv6_mask->hdr.vtc_flow || ipv6_mask->hdr.payload_len ||
 615                     ipv6_mask->hdr.hop_limits) {
 616                         return rte_flow_error_set(error, EINVAL,
 617                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 618                                                   item,
 619                                                   "Only support src & dst ip,proto in IPV6");
 620                 }
 621                 net_addr_to_host(rule->key_conf.mask.src_ip,
 622                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 623                                  IP_ADDR_LEN);
 624                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 625                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 626                                  IP_ADDR_LEN);
 627                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 628                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 629                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 630                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 631                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 632                 if (ipv6_mask->hdr.proto)
 633                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 634         }
 635
 636         ipv6_spec = item->spec;
 637         net_addr_to_host(rule->key_conf.spec.src_ip,
 638                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 639                          IP_ADDR_LEN);
 640         net_addr_to_host(rule->key_conf.spec.dst_ip,
 641                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 642                          IP_ADDR_LEN);
 643         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 644
 645         return 0;
 646 }
 647
 648 static bool
 649 hns3_check_tcp_mask_supported(const struct rte_flow_item_tcp *tcp_mask)
 650 {
 651         if (tcp_mask->hdr.sent_seq || tcp_mask->hdr.recv_ack ||
 652             tcp_mask->hdr.data_off || tcp_mask->hdr.tcp_flags ||
 653             tcp_mask->hdr.rx_win || tcp_mask->hdr.cksum ||
 654             tcp_mask->hdr.tcp_urp)
 655                 return false;
 656
 657         return true;
 658 }
 659
 660 static int
 661 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 662                struct rte_flow_error *error)
 663 {
 664         const struct rte_flow_item_tcp *tcp_spec;
 665         const struct rte_flow_item_tcp *tcp_mask;
 666
 667         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 668         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 669         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 670
 671         /* Only used to describe the protocol stack. */
 672         if (item->spec == NULL && item->mask == NULL)
 673                 return 0;
 674
 675         if (item->mask) {
 676                 tcp_mask = item->mask;
 677                 if (!hns3_check_tcp_mask_supported(tcp_mask)) {
 678                         return rte_flow_error_set(error, EINVAL,
 679                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 680                                                   item,
 681                                                   "Only support src & dst port in TCP");
 682                 }
 683
 684                 if (tcp_mask->hdr.src_port) {
 685                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 686                         rule->key_conf.mask.src_port =
 687                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 688                 }
 689                 if (tcp_mask->hdr.dst_port) {
 690                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 691                         rule->key_conf.mask.dst_port =
 692                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 693                 }
 694         }
 695
 696         tcp_spec = item->spec;
 697         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 698         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 699
 700         return 0;
 701 }
 702
 703 static int
 704 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 705                struct rte_flow_error *error)
 706 {
 707         const struct rte_flow_item_udp *udp_spec;
 708         const struct rte_flow_item_udp *udp_mask;
 709
 710         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 711         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 712         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 713
 714         /* Only used to describe the protocol stack. */
 715         if (item->spec == NULL && item->mask == NULL)
 716                 return 0;
 717
 718         if (item->mask) {
 719                 udp_mask = item->mask;
 720                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 721                         return rte_flow_error_set(error, EINVAL,
 722                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 723                                                   item,
 724                                                   "Only support src & dst port in UDP");
 725                 }
 726                 if (udp_mask->hdr.src_port) {
 727                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 728                         rule->key_conf.mask.src_port =
 729                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 730                 }
 731                 if (udp_mask->hdr.dst_port) {
 732                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 733                         rule->key_conf.mask.dst_port =
 734                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 735                 }
 736         }
 737
 738         udp_spec = item->spec;
 739         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 740         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 741
 742         return 0;
 743 }
 744
 745 static int
 746 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 747                 struct rte_flow_error *error)
 748 {
 749         const struct rte_flow_item_sctp *sctp_spec;
 750         const struct rte_flow_item_sctp *sctp_mask;
 751
 752         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 753         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 754         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 755
 756         /* Only used to describe the protocol stack. */
 757         if (item->spec == NULL && item->mask == NULL)
 758                 return 0;
 759
 760         if (item->mask) {
 761                 sctp_mask = item->mask;
 762                 if (sctp_mask->hdr.cksum)
 763                         return rte_flow_error_set(error, EINVAL,
 764                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 765                                                   item,
 766                                                   "Only support src & dst port in SCTP");
 767                 if (sctp_mask->hdr.src_port) {
 768                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 769                         rule->key_conf.mask.src_port =
 770                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 771                 }
 772                 if (sctp_mask->hdr.dst_port) {
 773                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 774                         rule->key_conf.mask.dst_port =
 775                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 776                 }
 777                 if (sctp_mask->hdr.tag) {
 778                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 779                         rule->key_conf.mask.sctp_tag =
 780                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 781                 }
 782         }
 783
 784         sctp_spec = item->spec;
 785         rule->key_conf.spec.src_port =
 786             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 787         rule->key_conf.spec.dst_port =
 788             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 789         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 790
 791         return 0;
 792 }
 793
 794 /*
 795  * Check items before tunnel, save inner configs to outer configs, and clear
 796  * inner configs.
 797  * The key consists of two parts: meta_data and tuple keys.
 798  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 799  * packet(1bit).
 800  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 801  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 802  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 803  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 804  * Vlantag2(16bit) and sctp-tag(32bit).
 805  */
 806 static int
 807 hns3_handle_tunnel(const struct rte_flow_item *item,
 808                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 809 {
 810         /* check eth config */
 811         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 812                 return rte_flow_error_set(error, EINVAL,
 813                                           RTE_FLOW_ERROR_TYPE_ITEM,
 814                                           item, "Outer eth mac is unsupported");
 815         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 816                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 817                 rule->key_conf.spec.outer_ether_type =
 818                     rule->key_conf.spec.ether_type;
 819                 rule->key_conf.mask.outer_ether_type =
 820                     rule->key_conf.mask.ether_type;
 821                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 822                 rule->key_conf.spec.ether_type = 0;
 823                 rule->key_conf.mask.ether_type = 0;
 824         }
 825
 826         /* check vlan config */
 827         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 828                 return rte_flow_error_set(error, EINVAL,
 829                                           RTE_FLOW_ERROR_TYPE_ITEM,
 830                                           item,
 831                                           "Outer vlan tags is unsupported");
 832
 833         /* clear vlan_num for inner vlan select */
 834         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 835         rule->key_conf.vlan_num = 0;
 836
 837         /* check L3 config */
 838         if (rule->input_set &
 839             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 840                 return rte_flow_error_set(error, EINVAL,
 841                                           RTE_FLOW_ERROR_TYPE_ITEM,
 842                                           item, "Outer ip is unsupported");
 843         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 844                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 845                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 846                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 847                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 848                 rule->key_conf.spec.ip_proto = 0;
 849                 rule->key_conf.mask.ip_proto = 0;
 850         }
 851
 852         /* check L4 config */
 853         if (rule->input_set & BIT(INNER_SCTP_TAG))
 854                 return rte_flow_error_set(error, EINVAL,
 855                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 856                                           "Outer sctp tag is unsupported");
 857
 858         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 859                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 860                 rule->key_conf.spec.outer_src_port =
 861                     rule->key_conf.spec.src_port;
 862                 rule->key_conf.mask.outer_src_port =
 863                     rule->key_conf.mask.src_port;
 864                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 865                 rule->key_conf.spec.src_port = 0;
 866                 rule->key_conf.mask.src_port = 0;
 867         }
 868         if (rule->input_set & BIT(INNER_DST_PORT)) {
 869                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 870                 rule->key_conf.spec.dst_port = 0;
 871                 rule->key_conf.mask.dst_port = 0;
 872         }
 873         return 0;
 874 }
 875
 876 static int
 877 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 878                  struct rte_flow_error *error)
 879 {
 880         const struct rte_flow_item_vxlan *vxlan_spec;
 881         const struct rte_flow_item_vxlan *vxlan_mask;
 882
 883         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 884         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 885         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 886                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 887         else
 888                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 889
 890         /* Only used to describe the protocol stack. */
 891         if (item->spec == NULL && item->mask == NULL)
 892                 return 0;
 893
 894         vxlan_mask = item->mask;
 895         vxlan_spec = item->spec;
 896
 897         if (vxlan_mask->flags)
 898                 return rte_flow_error_set(error, EINVAL,
 899                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 900                                           "Flags is not supported in VxLAN");
 901
 902         /* VNI must be totally masked or not. */
 903         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 904             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 905                 return rte_flow_error_set(error, EINVAL,
 906                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 907                                           "VNI must be totally masked or not in VxLAN");
 908         if (vxlan_mask->vni[0]) {
 909                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 910                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 911                            VNI_OR_TNI_LEN);
 912         }
 913         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 914                    VNI_OR_TNI_LEN);
 915         return 0;
 916 }
 917
 918 static int
 919 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 920                  struct rte_flow_error *error)
 921 {
 922         const struct rte_flow_item_nvgre *nvgre_spec;
 923         const struct rte_flow_item_nvgre *nvgre_mask;
 924
 925         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 926         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 927         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 928
 929         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 930         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 931         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 932         /* Only used to describe the protocol stack. */
 933         if (item->spec == NULL && item->mask == NULL)
 934                 return 0;
 935
 936         nvgre_mask = item->mask;
 937         nvgre_spec = item->spec;
 938
 939         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 940                 return rte_flow_error_set(error, EINVAL,
 941                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 942                                           "Ver/protocal is not supported in NVGRE");
 943
 944         /* TNI must be totally masked or not. */
 945         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 946             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 947                 return rte_flow_error_set(error, EINVAL,
 948                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 949                                           "TNI must be totally masked or not in NVGRE");
 950
 951         if (nvgre_mask->tni[0]) {
 952                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 953                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 954                            VNI_OR_TNI_LEN);
 955         }
 956         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 957                    VNI_OR_TNI_LEN);
 958
 959         if (nvgre_mask->flow_id) {
 960                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 961                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 962         }
 963         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 964         return 0;
 965 }
 966
 967 static int
 968 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 969                   struct rte_flow_error *error)
 970 {
 971         const struct rte_flow_item_geneve *geneve_spec;
 972         const struct rte_flow_item_geneve *geneve_mask;
 973
 974         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 975         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 976         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 977         /* Only used to describe the protocol stack. */
 978         if (item->spec == NULL && item->mask == NULL)
 979                 return 0;
 980
 981         geneve_mask = item->mask;
 982         geneve_spec = item->spec;
 983
 984         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 985                 return rte_flow_error_set(error, EINVAL,
 986                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 987                                           "Ver/protocal is not supported in GENEVE");
 988         /* VNI must be totally masked or not. */
 989         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 990             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 991                 return rte_flow_error_set(error, EINVAL,
 992                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 993                                           "VNI must be totally masked or not in GENEVE");
 994         if (geneve_mask->vni[0]) {
 995                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 996                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 997                            VNI_OR_TNI_LEN);
 998         }
 999         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
1000                    VNI_OR_TNI_LEN);
1001         return 0;
1002 }
1003
1004 static int
1005 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1006                   struct rte_flow_error *error)
1007 {
1008         int ret;
1009
1010         if (item->spec == NULL && item->mask)
1011                 return rte_flow_error_set(error, EINVAL,
1012                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1013                                           "Can't configure FDIR with mask "
1014                                           "but without spec");
1015         else if (item->spec && (item->mask == NULL))
1016                 return rte_flow_error_set(error, EINVAL,
1017                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1018                                           "Tunnel packets must configure "
1019                                           "with mask");
1020
1021         switch (item->type) {
1022         case RTE_FLOW_ITEM_TYPE_VXLAN:
1023         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1024                 ret = hns3_parse_vxlan(item, rule, error);
1025                 break;
1026         case RTE_FLOW_ITEM_TYPE_NVGRE:
1027                 ret = hns3_parse_nvgre(item, rule, error);
1028                 break;
1029         case RTE_FLOW_ITEM_TYPE_GENEVE:
1030                 ret = hns3_parse_geneve(item, rule, error);
1031                 break;
1032         default:
1033                 return rte_flow_error_set(error, ENOTSUP,
1034                                           RTE_FLOW_ERROR_TYPE_ITEM,
1035                                           NULL, "Unsupported tunnel type!");
1036         }
1037         if (ret)
1038                 return ret;
1039         return hns3_handle_tunnel(item, rule, error);
1040 }
1041
1042 static int
1043 hns3_parse_normal(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1044                   struct items_step_mngr *step_mngr,
1045                   struct rte_flow_error *error)
1046 {
1047         int ret;
1048
1049         if (item->spec == NULL && item->mask)
1050                 return rte_flow_error_set(error, EINVAL,
1051                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1052                                           "Can't configure FDIR with mask "
1053                                           "but without spec");
1054
1055         switch (item->type) {
1056         case RTE_FLOW_ITEM_TYPE_ETH:
1057                 ret = hns3_parse_eth(item, rule, error);
1058                 step_mngr->items = L2_next_items;
1059                 step_mngr->count = RTE_DIM(L2_next_items);
1060                 break;
1061         case RTE_FLOW_ITEM_TYPE_VLAN:
1062                 ret = hns3_parse_vlan(item, rule, error);
1063                 step_mngr->items = L2_next_items;
1064                 step_mngr->count = RTE_DIM(L2_next_items);
1065                 break;
1066         case RTE_FLOW_ITEM_TYPE_IPV4:
1067                 ret = hns3_parse_ipv4(item, rule, error);
1068                 step_mngr->items = L3_next_items;
1069                 step_mngr->count = RTE_DIM(L3_next_items);
1070                 break;
1071         case RTE_FLOW_ITEM_TYPE_IPV6:
1072                 ret = hns3_parse_ipv6(item, rule, error);
1073                 step_mngr->items = L3_next_items;
1074                 step_mngr->count = RTE_DIM(L3_next_items);
1075                 break;
1076         case RTE_FLOW_ITEM_TYPE_TCP:
1077                 ret = hns3_parse_tcp(item, rule, error);
1078                 step_mngr->items = L4_next_items;
1079                 step_mngr->count = RTE_DIM(L4_next_items);
1080                 break;
1081         case RTE_FLOW_ITEM_TYPE_UDP:
1082                 ret = hns3_parse_udp(item, rule, error);
1083                 step_mngr->items = L4_next_items;
1084                 step_mngr->count = RTE_DIM(L4_next_items);
1085                 break;
1086         case RTE_FLOW_ITEM_TYPE_SCTP:
1087                 ret = hns3_parse_sctp(item, rule, error);
1088                 step_mngr->items = L4_next_items;
1089                 step_mngr->count = RTE_DIM(L4_next_items);
1090                 break;
1091         default:
1092                 return rte_flow_error_set(error, ENOTSUP,
1093                                           RTE_FLOW_ERROR_TYPE_ITEM,
1094                                           NULL, "Unsupported normal type!");
1095         }
1096
1097         return ret;
1098 }
1099
1100 static int
1101 hns3_validate_item(const struct rte_flow_item *item,
1102                    struct items_step_mngr step_mngr,
1103                    struct rte_flow_error *error)
1104 {
1105         int i;
1106
1107         if (item->last)
1108                 return rte_flow_error_set(error, ENOTSUP,
1109                                           RTE_FLOW_ERROR_TYPE_ITEM_LAST, item,
1110                                           "Not supported last point for range");
1111
1112         for (i = 0; i < step_mngr.count; i++) {
1113                 if (item->type == step_mngr.items[i])
1114                         break;
1115         }
1116
1117         if (i == step_mngr.count) {
1118                 return rte_flow_error_set(error, EINVAL,
1119                                           RTE_FLOW_ERROR_TYPE_ITEM,
1120                                           item, "Inval or missing item");
1121         }
1122         return 0;
1123 }
1124
1125 static inline bool
1126 is_tunnel_packet(enum rte_flow_item_type type)
1127 {
1128         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1129             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1130             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1131             type == RTE_FLOW_ITEM_TYPE_GENEVE)
1132                 return true;
1133         return false;
1134 }
1135
1136 /*
1137  * Parse the flow director rule.
1138  * The supported PATTERN:
1139  *   case: non-tunnel packet:
1140  *     ETH : src-mac, dst-mac, ethertype
1141  *     VLAN: tag1, tag2
1142  *     IPv4: src-ip, dst-ip, tos, proto
1143  *     IPv6: src-ip(last 32 bit addr), dst-ip(last 32 bit addr), proto
1144  *     UDP : src-port, dst-port
1145  *     TCP : src-port, dst-port
1146  *     SCTP: src-port, dst-port, tag
1147  *   case: tunnel packet:
1148  *     OUTER-ETH: ethertype
1149  *     OUTER-L3 : proto
1150  *     OUTER-L4 : src-port, dst-port
1151  *     TUNNEL   : vni, flow-id(only valid when NVGRE)
1152  *     INNER-ETH/VLAN/IPv4/IPv6/UDP/TCP/SCTP: same as non-tunnel packet
1153  * The supported ACTION:
1154  *    QUEUE
1155  *    DROP
1156  *    COUNT
1157  *    MARK: the id range [0, 4094]
1158  *    FLAG
1159  *    RSS: only valid if firmware support FD_QUEUE_REGION.
1160  */
1161 static int
1162 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1163                        const struct rte_flow_item pattern[],
1164                        const struct rte_flow_action actions[],
1165                        struct hns3_fdir_rule *rule,
1166                        struct rte_flow_error *error)
1167 {
1168         struct hns3_adapter *hns = dev->data->dev_private;
1169         const struct rte_flow_item *item;
1170         struct items_step_mngr step_mngr;
1171         int ret;
1172
1173         /* FDIR is available only in PF driver */
1174         if (hns->is_vf)
1175                 return rte_flow_error_set(error, ENOTSUP,
1176                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1177                                           "Fdir not supported in VF");
1178
1179         step_mngr.items = first_items;
1180         step_mngr.count = RTE_DIM(first_items);
1181         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1182                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1183                         continue;
1184
1185                 ret = hns3_validate_item(item, step_mngr, error);
1186                 if (ret)
1187                         return ret;
1188
1189                 if (is_tunnel_packet(item->type)) {
1190                         ret = hns3_parse_tunnel(item, rule, error);
1191                         if (ret)
1192                                 return ret;
1193                         step_mngr.items = tunnel_next_items;
1194                         step_mngr.count = RTE_DIM(tunnel_next_items);
1195                 } else {
1196                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1197                         if (ret)
1198                                 return ret;
1199                 }
1200         }
1201
1202         return hns3_handle_actions(dev, actions, rule, error);
1203 }
1204
1205 static void
1206 hns3_filterlist_flush(struct rte_eth_dev *dev)
1207 {
1208         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1209         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1210         struct hns3_rss_conf_ele *rss_filter_ptr;
1211         struct hns3_flow_mem *flow_node;
1212
1213         fdir_rule_ptr = TAILQ_FIRST(&hw->flow_fdir_list);
1214         while (fdir_rule_ptr) {
1215                 TAILQ_REMOVE(&hw->flow_fdir_list, fdir_rule_ptr, entries);
1216                 rte_free(fdir_rule_ptr);
1217                 fdir_rule_ptr = TAILQ_FIRST(&hw->flow_fdir_list);
1218         }
1219
1220         rss_filter_ptr = TAILQ_FIRST(&hw->flow_rss_list);
1221         while (rss_filter_ptr) {
1222                 TAILQ_REMOVE(&hw->flow_rss_list, rss_filter_ptr, entries);
1223                 rte_free(rss_filter_ptr);
1224                 rss_filter_ptr = TAILQ_FIRST(&hw->flow_rss_list);
1225         }
1226
1227         flow_node = TAILQ_FIRST(&hw->flow_list);
1228         while (flow_node) {
1229                 TAILQ_REMOVE(&hw->flow_list, flow_node, entries);
1230                 rte_free(flow_node->flow);
1231                 rte_free(flow_node);
1232                 flow_node = TAILQ_FIRST(&hw->flow_list);
1233         }
1234 }
1235
1236 static bool
1237 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1238                      const struct rte_flow_action_rss *with)
1239 {
1240         bool func_is_same;
1241
1242         /*
1243          * When user flush all RSS rule, RSS func is set invalid with
1244          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1245          * flushed, any validate RSS func is different with it before
1246          * flushed. Others, when user create an action RSS with RSS func
1247          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1248          * between continuous RSS flow.
1249          */
1250         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1251                 func_is_same = false;
1252         else
1253                 func_is_same = with->func ? (comp->func == with->func) : true;
1254
1255         return (func_is_same &&
1256                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1257                 comp->level == with->level && comp->key_len == with->key_len &&
1258                 comp->queue_num == with->queue_num &&
1259                 !memcmp(comp->key, with->key, with->key_len) &&
1260                 !memcmp(comp->queue, with->queue,
1261                         sizeof(*with->queue) * with->queue_num));
1262 }
1263
1264 static int
1265 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1266                    const struct rte_flow_action_rss *in)
1267 {
1268         if (in->key_len > RTE_DIM(out->key) ||
1269             in->queue_num > RTE_DIM(out->queue))
1270                 return -EINVAL;
1271         if (in->key == NULL && in->key_len)
1272                 return -EINVAL;
1273         out->conf = (struct rte_flow_action_rss) {
1274                 .func = in->func,
1275                 .level = in->level,
1276                 .types = in->types,
1277                 .key_len = in->key_len,
1278                 .queue_num = in->queue_num,
1279         };
1280         out->conf.queue = memcpy(out->queue, in->queue,
1281                                 sizeof(*in->queue) * in->queue_num);
1282         if (in->key)
1283                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1284
1285         return 0;
1286 }
1287
1288 static bool
1289 hns3_rss_input_tuple_supported(struct hns3_hw *hw,
1290                                const struct rte_flow_action_rss *rss)
1291 {
1292         /*
1293          * For IP packet, it is not supported to use src/dst port fields to RSS
1294          * hash for the following packet types.
1295          * - IPV4 FRAG | IPV4 NONFRAG | IPV6 FRAG | IPV6 NONFRAG
1296          * Besides, for Kunpeng920, the NIC HW is not supported to use src/dst
1297          * port fields to RSS hash for IPV6 SCTP packet type. However, the
1298          * Kunpeng930 and future kunpeng series support to use src/dst port
1299          * fields to RSS hash for IPv6 SCTP packet type.
1300          */
1301         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1302             (rss->types & ETH_RSS_IP ||
1303             (!hw->rss_info.ipv6_sctp_offload_supported &&
1304             rss->types & ETH_RSS_NONFRAG_IPV6_SCTP)))
1305                 return false;
1306
1307         return true;
1308 }
1309
1310 /*
1311  * This function is used to parse rss action validatation.
1312  */
1313 static int
1314 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1315                       const struct rte_flow_action *actions,
1316                       struct rte_flow_error *error)
1317 {
1318         struct hns3_adapter *hns = dev->data->dev_private;
1319         struct hns3_hw *hw = &hns->hw;
1320         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1321         const struct rte_flow_action_rss *rss;
1322         const struct rte_flow_action *act;
1323         uint32_t act_index = 0;
1324         uint16_t n;
1325
1326         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1327         rss = act->conf;
1328
1329         if (rss == NULL) {
1330                 return rte_flow_error_set(error, EINVAL,
1331                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1332                                           act, "no valid queues");
1333         }
1334
1335         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1336                 return rte_flow_error_set(error, ENOTSUP,
1337                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1338                                           "queue number configured exceeds "
1339                                           "queue buffer size driver supported");
1340
1341         for (n = 0; n < rss->queue_num; n++) {
1342                 if (rss->queue[n] < hw->alloc_rss_size)
1343                         continue;
1344                 return rte_flow_error_set(error, EINVAL,
1345                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1346                                           "queue id must be less than queue number allocated to a TC");
1347         }
1348
1349         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1350                 return rte_flow_error_set(error, EINVAL,
1351                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1352                                           act,
1353                                           "Flow types is unsupported by "
1354                                           "hns3's RSS");
1355         if (rss->func >= RTE_ETH_HASH_FUNCTION_MAX)
1356                 return rte_flow_error_set(error, ENOTSUP,
1357                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1358                                           "RSS hash func are not supported");
1359         if (rss->level)
1360                 return rte_flow_error_set(error, ENOTSUP,
1361                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1362                                           "a nonzero RSS encapsulation level is not supported");
1363         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1364                 return rte_flow_error_set(error, ENOTSUP,
1365                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1366                                           "RSS hash key must be exactly 40 bytes");
1367
1368         if (!hns3_rss_input_tuple_supported(hw, rss))
1369                 return rte_flow_error_set(error, EINVAL,
1370                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1371                                           &rss->types,
1372                                           "input RSS types are not supported");
1373
1374         act_index++;
1375
1376         /* Check if the next not void action is END */
1377         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1378         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1379                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1380                 return rte_flow_error_set(error, EINVAL,
1381                                           RTE_FLOW_ERROR_TYPE_ACTION,
1382                                           act, "Not supported action.");
1383         }
1384
1385         return 0;
1386 }
1387
1388 static int
1389 hns3_disable_rss(struct hns3_hw *hw)
1390 {
1391         int ret;
1392
1393         /* Redirected the redirection table to queue 0 */
1394         ret = hns3_rss_reset_indir_table(hw);
1395         if (ret)
1396                 return ret;
1397
1398         /* Disable RSS */
1399         hw->rss_info.conf.types = 0;
1400         hw->rss_dis_flag = true;
1401
1402         return 0;
1403 }
1404
1405 static void
1406 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1407 {
1408         if (rss_conf->key == NULL || rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1409                 hns3_warn(hw, "Default RSS hash key to be set");
1410                 rss_conf->key = hns3_hash_key;
1411                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1412         }
1413 }
1414
1415 static int
1416 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1417                          uint8_t *hash_algo)
1418 {
1419         enum rte_eth_hash_function algo_func = *func;
1420         switch (algo_func) {
1421         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1422                 /* Keep *hash_algo as what it used to be */
1423                 algo_func = hw->rss_info.conf.func;
1424                 break;
1425         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1426                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1427                 break;
1428         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1429                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1430                 break;
1431         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1432                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1433                 break;
1434         default:
1435                 hns3_err(hw, "Invalid RSS algorithm configuration(%d)",
1436                          algo_func);
1437                 return -EINVAL;
1438         }
1439         *func = algo_func;
1440
1441         return 0;
1442 }
1443
1444 static int
1445 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1446 {
1447         struct hns3_rss_tuple_cfg *tuple;
1448         int ret;
1449
1450         hns3_parse_rss_key(hw, rss_config);
1451
1452         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1453                                        &hw->rss_info.hash_algo);
1454         if (ret)
1455                 return ret;
1456
1457         ret = hns3_rss_set_algo_key(hw, rss_config->key);
1458         if (ret)
1459                 return ret;
1460
1461         hw->rss_info.conf.func = rss_config->func;
1462
1463         tuple = &hw->rss_info.rss_tuple_sets;
1464         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1465         if (ret)
1466                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1467
1468         return ret;
1469 }
1470
1471 static int
1472 hns3_update_indir_table(struct rte_eth_dev *dev,
1473                         const struct rte_flow_action_rss *conf, uint16_t num)
1474 {
1475         struct hns3_adapter *hns = dev->data->dev_private;
1476         struct hns3_hw *hw = &hns->hw;
1477         uint16_t indir_tbl[HNS3_RSS_IND_TBL_SIZE_MAX];
1478         uint16_t j;
1479         uint32_t i;
1480
1481         /* Fill in redirection table */
1482         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1483                sizeof(hw->rss_info.rss_indirection_tbl));
1484         for (i = 0, j = 0; i < hw->rss_ind_tbl_size; i++, j++) {
1485                 j %= num;
1486                 if (conf->queue[j] >= hw->alloc_rss_size) {
1487                         hns3_err(hw, "queue id(%u) set to redirection table "
1488                                  "exceeds queue number(%u) allocated to a TC.",
1489                                  conf->queue[j], hw->alloc_rss_size);
1490                         return -EINVAL;
1491                 }
1492                 indir_tbl[i] = conf->queue[j];
1493         }
1494
1495         return hns3_set_rss_indir_table(hw, indir_tbl, hw->rss_ind_tbl_size);
1496 }
1497
1498 static int
1499 hns3_config_rss_filter(struct rte_eth_dev *dev,
1500                        const struct hns3_rss_conf *conf, bool add)
1501 {
1502         struct hns3_adapter *hns = dev->data->dev_private;
1503         struct hns3_rss_conf_ele *rss_filter_ptr;
1504         struct hns3_hw *hw = &hns->hw;
1505         struct hns3_rss_conf *rss_info;
1506         uint64_t flow_types;
1507         uint16_t num;
1508         int ret;
1509
1510         struct rte_flow_action_rss rss_flow_conf = {
1511                 .func = conf->conf.func,
1512                 .level = conf->conf.level,
1513                 .types = conf->conf.types,
1514                 .key_len = conf->conf.key_len,
1515                 .queue_num = conf->conf.queue_num,
1516                 .key = conf->conf.key_len ?
1517                     (void *)(uintptr_t)conf->conf.key : NULL,
1518                 .queue = conf->conf.queue,
1519         };
1520
1521         /* Filter the unsupported flow types */
1522         flow_types = conf->conf.types ?
1523                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1524                      hw->rss_info.conf.types;
1525         if (flow_types != rss_flow_conf.types)
1526                 hns3_warn(hw, "modified RSS types based on hardware support, "
1527                               "requested:0x%" PRIx64 " configured:0x%" PRIx64,
1528                           rss_flow_conf.types, flow_types);
1529         /* Update the useful flow types */
1530         rss_flow_conf.types = flow_types;
1531
1532         rss_info = &hw->rss_info;
1533         if (!add) {
1534                 if (!conf->valid)
1535                         return 0;
1536
1537                 ret = hns3_disable_rss(hw);
1538                 if (ret) {
1539                         hns3_err(hw, "RSS disable failed(%d)", ret);
1540                         return ret;
1541                 }
1542
1543                 if (rss_flow_conf.queue_num) {
1544                         /*
1545                          * Due the content of queue pointer have been reset to
1546                          * 0, the rss_info->conf.queue should be set to NULL
1547                          */
1548                         rss_info->conf.queue = NULL;
1549                         rss_info->conf.queue_num = 0;
1550                 }
1551
1552                 /* set RSS func invalid after flushed */
1553                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1554                 return 0;
1555         }
1556
1557         /* Set rx queues to use */
1558         num = RTE_MIN(dev->data->nb_rx_queues, rss_flow_conf.queue_num);
1559         if (rss_flow_conf.queue_num > num)
1560                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1561                           rss_flow_conf.queue_num);
1562         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1563
1564         rte_spinlock_lock(&hw->lock);
1565         if (num) {
1566                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1567                 if (ret)
1568                         goto rss_config_err;
1569         }
1570
1571         /* Set hash algorithm and flow types by the user's config */
1572         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1573         if (ret)
1574                 goto rss_config_err;
1575
1576         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1577         if (ret) {
1578                 hns3_err(hw, "RSS config init fail(%d)", ret);
1579                 goto rss_config_err;
1580         }
1581
1582         /*
1583          * When create a new RSS rule, the old rule will be overlaid and set
1584          * invalid.
1585          */
1586         TAILQ_FOREACH(rss_filter_ptr, &hw->flow_rss_list, entries)
1587                 rss_filter_ptr->filter_info.valid = false;
1588
1589 rss_config_err:
1590         rte_spinlock_unlock(&hw->lock);
1591
1592         return ret;
1593 }
1594
1595 static int
1596 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1597 {
1598         struct hns3_adapter *hns = dev->data->dev_private;
1599         struct hns3_rss_conf_ele *rss_filter_ptr;
1600         struct hns3_hw *hw = &hns->hw;
1601         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1602         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1603         int ret = 0;
1604
1605         rss_filter_ptr = TAILQ_FIRST(&hw->flow_rss_list);
1606         while (rss_filter_ptr) {
1607                 TAILQ_REMOVE(&hw->flow_rss_list, rss_filter_ptr, entries);
1608                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1609                                              false);
1610                 if (ret)
1611                         rss_rule_fail_cnt++;
1612                 else
1613                         rss_rule_succ_cnt++;
1614                 rte_free(rss_filter_ptr);
1615                 rss_filter_ptr = TAILQ_FIRST(&hw->flow_rss_list);
1616         }
1617
1618         if (rss_rule_fail_cnt) {
1619                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1620                              "fail num = %d", rss_rule_succ_cnt,
1621                              rss_rule_fail_cnt);
1622                 ret = -EIO;
1623         }
1624
1625         return ret;
1626 }
1627
1628 int
1629 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1630 {
1631         struct hns3_adapter *hns = dev->data->dev_private;
1632         struct hns3_hw *hw = &hns->hw;
1633
1634         /* When user flush all rules, it doesn't need to restore RSS rule */
1635         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1636                 return 0;
1637
1638         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1639 }
1640
1641 static int
1642 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1643                     const struct hns3_rss_conf *conf, bool add)
1644 {
1645         struct hns3_adapter *hns = dev->data->dev_private;
1646         struct hns3_hw *hw = &hns->hw;
1647         bool ret;
1648
1649         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1650         if (ret) {
1651                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1652                 return -EINVAL;
1653         }
1654
1655         return hns3_config_rss_filter(dev, conf, add);
1656 }
1657
1658 static int
1659 hns3_flow_args_check(const struct rte_flow_attr *attr,
1660                      const struct rte_flow_item pattern[],
1661                      const struct rte_flow_action actions[],
1662                      struct rte_flow_error *error)
1663 {
1664         if (pattern == NULL)
1665                 return rte_flow_error_set(error, EINVAL,
1666                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1667                                           NULL, "NULL pattern.");
1668
1669         if (actions == NULL)
1670                 return rte_flow_error_set(error, EINVAL,
1671                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1672                                           NULL, "NULL action.");
1673
1674         if (attr == NULL)
1675                 return rte_flow_error_set(error, EINVAL,
1676                                           RTE_FLOW_ERROR_TYPE_ATTR,
1677                                           NULL, "NULL attribute.");
1678
1679         return hns3_check_attr(attr, error);
1680 }
1681
1682 /*
1683  * Check if the flow rule is supported by hns3.
1684  * It only checkes the format. Don't guarantee the rule can be programmed into
1685  * the HW. Because there can be no enough room for the rule.
1686  */
1687 static int
1688 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1689                    const struct rte_flow_item pattern[],
1690                    const struct rte_flow_action actions[],
1691                    struct rte_flow_error *error)
1692 {
1693         struct hns3_fdir_rule fdir_rule;
1694         int ret;
1695
1696         ret = hns3_flow_args_check(attr, pattern, actions, error);
1697         if (ret)
1698                 return ret;
1699
1700         if (hns3_find_rss_general_action(pattern, actions))
1701                 return hns3_parse_rss_filter(dev, actions, error);
1702
1703         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1704         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1705 }
1706
1707 /*
1708  * Create or destroy a flow rule.
1709  * Theorically one rule can match more than one filters.
1710  * We will let it use the filter which it hit first.
1711  * So, the sequence matters.
1712  */
1713 static struct rte_flow *
1714 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1715                  const struct rte_flow_item pattern[],
1716                  const struct rte_flow_action actions[],
1717                  struct rte_flow_error *error)
1718 {
1719         struct hns3_adapter *hns = dev->data->dev_private;
1720         struct hns3_hw *hw = &hns->hw;
1721         const struct hns3_rss_conf *rss_conf;
1722         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1723         struct hns3_rss_conf_ele *rss_filter_ptr;
1724         struct hns3_flow_mem *flow_node;
1725         const struct rte_flow_action *act;
1726         struct rte_flow *flow;
1727         struct hns3_fdir_rule fdir_rule;
1728         int ret;
1729
1730         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1731         if (ret)
1732                 return NULL;
1733
1734         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1735         if (flow == NULL) {
1736                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1737                                    NULL, "Failed to allocate flow memory");
1738                 return NULL;
1739         }
1740         flow_node = rte_zmalloc("hns3 flow node",
1741                                 sizeof(struct hns3_flow_mem), 0);
1742         if (flow_node == NULL) {
1743                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1744                                    NULL, "Failed to allocate flow list memory");
1745                 rte_free(flow);
1746                 return NULL;
1747         }
1748
1749         flow_node->flow = flow;
1750         TAILQ_INSERT_TAIL(&hw->flow_list, flow_node, entries);
1751
1752         act = hns3_find_rss_general_action(pattern, actions);
1753         if (act) {
1754                 rss_conf = act->conf;
1755
1756                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1757                 if (ret)
1758                         goto err;
1759
1760                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1761                                              sizeof(struct hns3_rss_conf_ele),
1762                                              0);
1763                 if (rss_filter_ptr == NULL) {
1764                         hns3_err(hw,
1765                                     "Failed to allocate hns3_rss_filter memory");
1766                         ret = -ENOMEM;
1767                         goto err;
1768                 }
1769                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1770                                    &rss_conf->conf);
1771                 rss_filter_ptr->filter_info.valid = true;
1772                 TAILQ_INSERT_TAIL(&hw->flow_rss_list, rss_filter_ptr, entries);
1773
1774                 flow->rule = rss_filter_ptr;
1775                 flow->filter_type = RTE_ETH_FILTER_HASH;
1776                 return flow;
1777         }
1778
1779         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1780         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1781         if (ret)
1782                 goto out;
1783
1784         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1785                 ret = hns3_counter_new(dev, 0, fdir_rule.act_cnt.id, error);
1786                 if (ret)
1787                         goto out;
1788
1789                 flow->counter_id = fdir_rule.act_cnt.id;
1790         }
1791
1792         fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1793                                     sizeof(struct hns3_fdir_rule_ele),
1794                                     0);
1795         if (fdir_rule_ptr == NULL) {
1796                 hns3_err(hw, "failed to allocate fdir_rule memory.");
1797                 ret = -ENOMEM;
1798                 goto err_fdir;
1799         }
1800
1801         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1802         if (!ret) {
1803                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1804                         sizeof(struct hns3_fdir_rule));
1805                 TAILQ_INSERT_TAIL(&hw->flow_fdir_list, fdir_rule_ptr, entries);
1806                 flow->rule = fdir_rule_ptr;
1807                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1808
1809                 return flow;
1810         }
1811
1812         rte_free(fdir_rule_ptr);
1813 err_fdir:
1814         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1815                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1816 err:
1817         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1818                            "Failed to create flow");
1819 out:
1820         TAILQ_REMOVE(&hw->flow_list, flow_node, entries);
1821         rte_free(flow_node);
1822         rte_free(flow);
1823         return NULL;
1824 }
1825
1826 /* Destroy a flow rule on hns3. */
1827 static int
1828 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1829                   struct rte_flow_error *error)
1830 {
1831         struct hns3_adapter *hns = dev->data->dev_private;
1832         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1833         struct hns3_rss_conf_ele *rss_filter_ptr;
1834         struct hns3_flow_mem *flow_node;
1835         enum rte_filter_type filter_type;
1836         struct hns3_fdir_rule fdir_rule;
1837         struct hns3_hw *hw = &hns->hw;
1838         int ret;
1839
1840         if (flow == NULL)
1841                 return rte_flow_error_set(error, EINVAL,
1842                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1843                                           flow, "Flow is NULL");
1844
1845         filter_type = flow->filter_type;
1846         switch (filter_type) {
1847         case RTE_ETH_FILTER_FDIR:
1848                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1849                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1850                            sizeof(struct hns3_fdir_rule));
1851
1852                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1853                 if (ret)
1854                         return rte_flow_error_set(error, EIO,
1855                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1856                                                   flow,
1857                                                   "Destroy FDIR fail.Try again");
1858                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1859                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1860                 TAILQ_REMOVE(&hw->flow_fdir_list, fdir_rule_ptr, entries);
1861                 rte_free(fdir_rule_ptr);
1862                 fdir_rule_ptr = NULL;
1863                 break;
1864         case RTE_ETH_FILTER_HASH:
1865                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1866                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1867                                              false);
1868                 if (ret)
1869                         return rte_flow_error_set(error, EIO,
1870                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1871                                                   flow,
1872                                                   "Destroy RSS fail.Try again");
1873                 TAILQ_REMOVE(&hw->flow_rss_list, rss_filter_ptr, entries);
1874                 rte_free(rss_filter_ptr);
1875                 rss_filter_ptr = NULL;
1876                 break;
1877         default:
1878                 return rte_flow_error_set(error, EINVAL,
1879                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1880                                           "Unsupported filter type");
1881         }
1882
1883         TAILQ_FOREACH(flow_node, &hw->flow_list, entries) {
1884                 if (flow_node->flow == flow) {
1885                         TAILQ_REMOVE(&hw->flow_list, flow_node, entries);
1886                         rte_free(flow_node);
1887                         flow_node = NULL;
1888                         break;
1889                 }
1890         }
1891         rte_free(flow);
1892         flow = NULL;
1893
1894         return 0;
1895 }
1896
1897 /*  Destroy all flow rules associated with a port on hns3. */
1898 static int
1899 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1900 {
1901         struct hns3_adapter *hns = dev->data->dev_private;
1902         int ret;
1903
1904         /* FDIR is available only in PF driver */
1905         if (!hns->is_vf) {
1906                 ret = hns3_clear_all_fdir_filter(hns);
1907                 if (ret) {
1908                         rte_flow_error_set(error, ret,
1909                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1910                                            NULL, "Failed to flush rule");
1911                         return ret;
1912                 }
1913                 hns3_counter_flush(dev);
1914         }
1915
1916         ret = hns3_clear_rss_filter(dev);
1917         if (ret) {
1918                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1919                                    NULL, "Failed to flush rss filter");
1920                 return ret;
1921         }
1922
1923         hns3_filterlist_flush(dev);
1924
1925         return 0;
1926 }
1927
1928 /* Query an existing flow rule. */
1929 static int
1930 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1931                 const struct rte_flow_action *actions, void *data,
1932                 struct rte_flow_error *error)
1933 {
1934         struct rte_flow_action_rss *rss_conf;
1935         struct hns3_rss_conf_ele *rss_rule;
1936         struct rte_flow_query_count *qc;
1937         int ret;
1938
1939         if (!flow->rule)
1940                 return rte_flow_error_set(error, EINVAL,
1941                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
1942
1943         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1944                 switch (actions->type) {
1945                 case RTE_FLOW_ACTION_TYPE_VOID:
1946                         break;
1947                 case RTE_FLOW_ACTION_TYPE_COUNT:
1948                         qc = (struct rte_flow_query_count *)data;
1949                         ret = hns3_counter_query(dev, flow, qc, error);
1950                         if (ret)
1951                                 return ret;
1952                         break;
1953                 case RTE_FLOW_ACTION_TYPE_RSS:
1954                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
1955                                 return rte_flow_error_set(error, ENOTSUP,
1956                                         RTE_FLOW_ERROR_TYPE_ACTION,
1957                                         actions, "action is not supported");
1958                         }
1959                         rss_conf = (struct rte_flow_action_rss *)data;
1960                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
1961                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
1962                                    sizeof(struct rte_flow_action_rss));
1963                         break;
1964                 default:
1965                         return rte_flow_error_set(error, ENOTSUP,
1966                                 RTE_FLOW_ERROR_TYPE_ACTION,
1967                                 actions, "action is not supported");
1968                 }
1969         }
1970
1971         return 0;
1972 }
1973
1974 static int
1975 hns3_flow_validate_wrap(struct rte_eth_dev *dev,
1976                         const struct rte_flow_attr *attr,
1977                         const struct rte_flow_item pattern[],
1978                         const struct rte_flow_action actions[],
1979                         struct rte_flow_error *error)
1980 {
1981         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1982         int ret;
1983
1984         pthread_mutex_lock(&hw->flows_lock);
1985         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1986         pthread_mutex_unlock(&hw->flows_lock);
1987
1988         return ret;
1989 }
1990
1991 static struct rte_flow *
1992 hns3_flow_create_wrap(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1993                       const struct rte_flow_item pattern[],
1994                       const struct rte_flow_action actions[],
1995                       struct rte_flow_error *error)
1996 {
1997         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
1998         struct rte_flow *flow;
1999
2000         pthread_mutex_lock(&hw->flows_lock);
2001         flow = hns3_flow_create(dev, attr, pattern, actions, error);
2002         pthread_mutex_unlock(&hw->flows_lock);
2003
2004         return flow;
2005 }
2006
2007 static int
2008 hns3_flow_destroy_wrap(struct rte_eth_dev *dev, struct rte_flow *flow,
2009                        struct rte_flow_error *error)
2010 {
2011         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2012         int ret;
2013
2014         pthread_mutex_lock(&hw->flows_lock);
2015         ret = hns3_flow_destroy(dev, flow, error);
2016         pthread_mutex_unlock(&hw->flows_lock);
2017
2018         return ret;
2019 }
2020
2021 static int
2022 hns3_flow_flush_wrap(struct rte_eth_dev *dev, struct rte_flow_error *error)
2023 {
2024         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2025         int ret;
2026
2027         pthread_mutex_lock(&hw->flows_lock);
2028         ret = hns3_flow_flush(dev, error);
2029         pthread_mutex_unlock(&hw->flows_lock);
2030
2031         return ret;
2032 }
2033
2034 static int
2035 hns3_flow_query_wrap(struct rte_eth_dev *dev, struct rte_flow *flow,
2036                      const struct rte_flow_action *actions, void *data,
2037                      struct rte_flow_error *error)
2038 {
2039         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2040         int ret;
2041
2042         pthread_mutex_lock(&hw->flows_lock);
2043         ret = hns3_flow_query(dev, flow, actions, data, error);
2044         pthread_mutex_unlock(&hw->flows_lock);
2045
2046         return ret;
2047 }
2048
2049 static const struct rte_flow_ops hns3_flow_ops = {
2050         .validate = hns3_flow_validate_wrap,
2051         .create = hns3_flow_create_wrap,
2052         .destroy = hns3_flow_destroy_wrap,
2053         .flush = hns3_flow_flush_wrap,
2054         .query = hns3_flow_query_wrap,
2055         .isolate = NULL,
2056 };
2057
2058 int
2059 hns3_dev_flow_ops_get(struct rte_eth_dev *dev,
2060                       const struct rte_flow_ops **ops)
2061 {
2062         struct hns3_hw *hw;
2063
2064         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2065         if (hw->adapter_state >= HNS3_NIC_CLOSED)
2066                 return -ENODEV;
2067
2068         *ops = &hns3_flow_ops;
2069         return 0;
2070 }
2071
2072 void
2073 hns3_flow_init(struct rte_eth_dev *dev)
2074 {
2075         struct hns3_hw *hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2076         pthread_mutexattr_t attr;
2077
2078         if (rte_eal_process_type() != RTE_PROC_PRIMARY)
2079                 return;
2080
2081         pthread_mutexattr_init(&attr);
2082         pthread_mutexattr_setpshared(&attr, PTHREAD_PROCESS_SHARED);
2083         pthread_mutex_init(&hw->flows_lock, &attr);
2084         dev->data->dev_flags |= RTE_ETH_DEV_FLOW_OPS_THREAD_SAFE;
2085
2086         TAILQ_INIT(&hw->flow_fdir_list);
2087         TAILQ_INIT(&hw->flow_rss_list);
2088         TAILQ_INIT(&hw->flow_list);
2089 }
2090
2091 void
2092 hns3_flow_uninit(struct rte_eth_dev *dev)
2093 {
2094         struct rte_flow_error error;
2095         if (rte_eal_process_type() == RTE_PROC_PRIMARY)
2096                 hns3_flow_flush_wrap(dev, &error);
2097 }