drivers/net/hns3/hns3_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2019 Hisilicon Limited.
   3  */
   4
   5 #include <stdbool.h>
   6 #include <sys/queue.h>
   7 #include <rte_flow_driver.h>
   8 #include <rte_io.h>
   9 #include <rte_malloc.h>
  10
  11 #include "hns3_ethdev.h"
  12 #include "hns3_logs.h"
  13
  14 /* Default default keys */
  15 static uint8_t hns3_hash_key[] = {
  16         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
  17         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
  18         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
  19         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
  20         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
  21 };
  22
  23 static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
  24 static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
  25
  26 /* Special Filter id for non-specific packet flagging. Don't change value */
  27 #define HNS3_MAX_FILTER_ID      0x0FFF
  28
  29 #define ETHER_TYPE_MASK         0xFFFF
  30 #define IPPROTO_MASK            0xFF
  31 #define TUNNEL_TYPE_MASK        0xFFFF
  32
  33 #define HNS3_TUNNEL_TYPE_VXLAN          0x12B5
  34 #define HNS3_TUNNEL_TYPE_VXLAN_GPE      0x12B6
  35 #define HNS3_TUNNEL_TYPE_GENEVE         0x17C1
  36 #define HNS3_TUNNEL_TYPE_NVGRE          0x6558
  37
  38 static enum rte_flow_item_type first_items[] = {
  39         RTE_FLOW_ITEM_TYPE_ETH,
  40         RTE_FLOW_ITEM_TYPE_IPV4,
  41         RTE_FLOW_ITEM_TYPE_IPV6,
  42         RTE_FLOW_ITEM_TYPE_TCP,
  43         RTE_FLOW_ITEM_TYPE_UDP,
  44         RTE_FLOW_ITEM_TYPE_SCTP,
  45         RTE_FLOW_ITEM_TYPE_ICMP,
  46         RTE_FLOW_ITEM_TYPE_NVGRE,
  47         RTE_FLOW_ITEM_TYPE_VXLAN,
  48         RTE_FLOW_ITEM_TYPE_GENEVE,
  49         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  50         RTE_FLOW_ITEM_TYPE_MPLS
  51 };
  52
  53 static enum rte_flow_item_type L2_next_items[] = {
  54         RTE_FLOW_ITEM_TYPE_VLAN,
  55         RTE_FLOW_ITEM_TYPE_IPV4,
  56         RTE_FLOW_ITEM_TYPE_IPV6
  57 };
  58
  59 static enum rte_flow_item_type L3_next_items[] = {
  60         RTE_FLOW_ITEM_TYPE_TCP,
  61         RTE_FLOW_ITEM_TYPE_UDP,
  62         RTE_FLOW_ITEM_TYPE_SCTP,
  63         RTE_FLOW_ITEM_TYPE_NVGRE,
  64         RTE_FLOW_ITEM_TYPE_ICMP
  65 };
  66
  67 static enum rte_flow_item_type L4_next_items[] = {
  68         RTE_FLOW_ITEM_TYPE_VXLAN,
  69         RTE_FLOW_ITEM_TYPE_GENEVE,
  70         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  71         RTE_FLOW_ITEM_TYPE_MPLS
  72 };
  73
  74 static enum rte_flow_item_type tunnel_next_items[] = {
  75         RTE_FLOW_ITEM_TYPE_ETH,
  76         RTE_FLOW_ITEM_TYPE_VLAN
  77 };
  78
  79 struct items_step_mngr {
  80         enum rte_flow_item_type *items;
  81         int count;
  82 };
  83
  84 static inline void
  85 net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
  86 {
  87         size_t i;
  88
  89         for (i = 0; i < len; i++)
  90                 dst[i] = rte_be_to_cpu_32(src[i]);
  91 }
  92
  93 /*
  94  * This function is used to find rss general action.
  95  * 1. As we know RSS is used to spread packets among several queues, the flow
  96  *    API provide the struct rte_flow_action_rss, user could config it's field
  97  *    sush as: func/level/types/key/queue to control RSS function.
  98  * 2. The flow API also support queue region configuration for hns3. It was
  99  *    implemented by FDIR + RSS in hns3 hardware, user can create one FDIR rule
 100  *    which action is RSS queues region.
 101  * 3. When action is RSS, we use the following rule to distinguish:
 102  *    Case 1: pattern have ETH and action's queue_num > 0, indicate it is queue
 103  *            region configuration.
 104  *    Case other: an rss general action.
 105  */
 106 static const struct rte_flow_action *
 107 hns3_find_rss_general_action(const struct rte_flow_item pattern[],
 108                              const struct rte_flow_action actions[])
 109 {
 110         const struct rte_flow_action *act = NULL;
 111         const struct hns3_rss_conf *rss;
 112         bool have_eth = false;
 113
 114         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 115                 if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
 116                         act = actions;
 117                         break;
 118                 }
 119         }
 120         if (!act)
 121                 return NULL;
 122
 123         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
 124                 if (pattern->type == RTE_FLOW_ITEM_TYPE_ETH) {
 125                         have_eth = true;
 126                         break;
 127                 }
 128         }
 129
 130         rss = act->conf;
 131         if (have_eth && rss->conf.queue_num) {
 132                 /*
 133                  * Patter have ETH and action's queue_num > 0, indicate this is
 134                  * queue region configuration.
 135                  * Because queue region is implemented by FDIR + RSS in hns3
 136                  * hardware, it need enter FDIR process, so here return NULL to
 137                  * avoid enter RSS process.
 138                  */
 139                 return NULL;
 140         }
 141
 142         return act;
 143 }
 144
 145 static inline struct hns3_flow_counter *
 146 hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
 147 {
 148         struct hns3_adapter *hns = dev->data->dev_private;
 149         struct hns3_pf *pf = &hns->pf;
 150         struct hns3_flow_counter *cnt;
 151
 152         LIST_FOREACH(cnt, &pf->flow_counters, next) {
 153                 if (cnt->id == id)
 154                         return cnt;
 155         }
 156         return NULL;
 157 }
 158
 159 static int
 160 hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
 161                  struct rte_flow_error *error)
 162 {
 163         struct hns3_adapter *hns = dev->data->dev_private;
 164         struct hns3_pf *pf = &hns->pf;
 165         struct hns3_flow_counter *cnt;
 166
 167         cnt = hns3_counter_lookup(dev, id);
 168         if (cnt) {
 169                 if (!cnt->shared || cnt->shared != shared)
 170                         return rte_flow_error_set(error, ENOTSUP,
 171                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 172                                                   cnt,
 173                                                   "Counter id is used,shared flag not match");
 174                 cnt->ref_cnt++;
 175                 return 0;
 176         }
 177
 178         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
 179         if (cnt == NULL)
 180                 return rte_flow_error_set(error, ENOMEM,
 181                                           RTE_FLOW_ERROR_TYPE_ACTION, cnt,
 182                                           "Alloc mem for counter failed");
 183         cnt->id = id;
 184         cnt->shared = shared;
 185         cnt->ref_cnt = 1;
 186         cnt->hits = 0;
 187         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
 188         return 0;
 189 }
 190
 191 static int
 192 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
 193                    struct rte_flow_query_count *qc,
 194                    struct rte_flow_error *error)
 195 {
 196         struct hns3_adapter *hns = dev->data->dev_private;
 197         struct hns3_flow_counter *cnt;
 198         uint64_t value;
 199         int ret;
 200
 201         /* FDIR is available only in PF driver */
 202         if (hns->is_vf)
 203                 return rte_flow_error_set(error, ENOTSUP,
 204                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 205                                           "Fdir is not supported in VF");
 206         cnt = hns3_counter_lookup(dev, flow->counter_id);
 207         if (cnt == NULL)
 208                 return rte_flow_error_set(error, EINVAL,
 209                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
 210                                           "Can't find counter id");
 211
 212         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
 213         if (ret) {
 214                 rte_flow_error_set(error, -ret,
 215                                    RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
 216                                    NULL, "Read counter fail.");
 217                 return ret;
 218         }
 219         qc->hits_set = 1;
 220         qc->hits = value;
 221
 222         return 0;
 223 }
 224
 225 static int
 226 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
 227 {
 228         struct hns3_adapter *hns = dev->data->dev_private;
 229         struct hns3_hw *hw = &hns->hw;
 230         struct hns3_flow_counter *cnt;
 231
 232         cnt = hns3_counter_lookup(dev, id);
 233         if (cnt == NULL) {
 234                 hns3_err(hw, "Can't find available counter to release");
 235                 return -EINVAL;
 236         }
 237         cnt->ref_cnt--;
 238         if (cnt->ref_cnt == 0) {
 239                 LIST_REMOVE(cnt, next);
 240                 rte_free(cnt);
 241         }
 242         return 0;
 243 }
 244
 245 static void
 246 hns3_counter_flush(struct rte_eth_dev *dev)
 247 {
 248         struct hns3_adapter *hns = dev->data->dev_private;
 249         struct hns3_pf *pf = &hns->pf;
 250         struct hns3_flow_counter *cnt_ptr;
 251
 252         cnt_ptr = LIST_FIRST(&pf->flow_counters);
 253         while (cnt_ptr) {
 254                 LIST_REMOVE(cnt_ptr, next);
 255                 rte_free(cnt_ptr);
 256                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
 257         }
 258 }
 259
 260 static int
 261 hns3_handle_action_queue(struct rte_eth_dev *dev,
 262                          const struct rte_flow_action *action,
 263                          struct hns3_fdir_rule *rule,
 264                          struct rte_flow_error *error)
 265 {
 266         struct hns3_adapter *hns = dev->data->dev_private;
 267         const struct rte_flow_action_queue *queue;
 268         struct hns3_hw *hw = &hns->hw;
 269
 270         queue = (const struct rte_flow_action_queue *)action->conf;
 271         if (queue->index >= hw->used_rx_queues) {
 272                 hns3_err(hw, "queue ID(%d) is greater than number of "
 273                           "available queue (%d) in driver.",
 274                           queue->index, hw->used_rx_queues);
 275                 return rte_flow_error_set(error, EINVAL,
 276                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 277                                           action, "Invalid queue ID in PF");
 278         }
 279
 280         rule->queue_id = queue->index;
 281         rule->nb_queues = 1;
 282         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 283         return 0;
 284 }
 285
 286 static int
 287 hns3_handle_action_queue_region(struct rte_eth_dev *dev,
 288                                 const struct rte_flow_action *action,
 289                                 struct hns3_fdir_rule *rule,
 290                                 struct rte_flow_error *error)
 291 {
 292         struct hns3_adapter *hns = dev->data->dev_private;
 293         const struct rte_flow_action_rss *conf = action->conf;
 294         struct hns3_hw *hw = &hns->hw;
 295         uint16_t idx;
 296
 297         if (!hns3_dev_fd_queue_region_supported(hw))
 298                 return rte_flow_error_set(error, ENOTSUP,
 299                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 300                         "Not support config queue region!");
 301
 302         if ((!rte_is_power_of_2(conf->queue_num)) ||
 303                 conf->queue_num > hw->rss_size_max ||
 304                 conf->queue[0] >= hw->used_rx_queues ||
 305                 conf->queue[0] + conf->queue_num > hw->used_rx_queues) {
 306                 return rte_flow_error_set(error, EINVAL,
 307                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 308                         "Invalid start queue ID and queue num! the start queue "
 309                         "ID must valid, the queue num must be power of 2 and "
 310                         "<= rss_size_max.");
 311         }
 312
 313         for (idx = 1; idx < conf->queue_num; idx++) {
 314                 if (conf->queue[idx] != conf->queue[idx - 1] + 1)
 315                         return rte_flow_error_set(error, EINVAL,
 316                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 317                                 "Invalid queue ID sequence! the queue ID "
 318                                 "must be continuous increment.");
 319         }
 320
 321         rule->queue_id = conf->queue[0];
 322         rule->nb_queues = conf->queue_num;
 323         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 324         return 0;
 325 }
 326
 327 /*
 328  * Parse actions structure from the provided pattern.
 329  * The pattern is validated as the items are copied.
 330  *
 331  * @param actions[in]
 332  * @param rule[out]
 333  *   NIC specfilc actions derived from the actions.
 334  * @param error[out]
 335  */
 336 static int
 337 hns3_handle_actions(struct rte_eth_dev *dev,
 338                     const struct rte_flow_action actions[],
 339                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 340 {
 341         struct hns3_adapter *hns = dev->data->dev_private;
 342         const struct rte_flow_action_count *act_count;
 343         const struct rte_flow_action_mark *mark;
 344         struct hns3_pf *pf = &hns->pf;
 345         uint32_t counter_num;
 346         int ret;
 347
 348         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 349                 switch (actions->type) {
 350                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 351                         ret = hns3_handle_action_queue(dev, actions, rule,
 352                                                        error);
 353                         if (ret)
 354                                 return ret;
 355                         break;
 356                 case RTE_FLOW_ACTION_TYPE_DROP:
 357                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 358                         break;
 359                 /*
 360                  * Here RSS's real action is queue region.
 361                  * Queue region is implemented by FDIR + RSS in hns3 hardware,
 362                  * the FDIR's action is one queue region (start_queue_id and
 363                  * queue_num), then RSS spread packets to the queue region by
 364                  * RSS algorigthm.
 365                  */
 366                 case RTE_FLOW_ACTION_TYPE_RSS:
 367                         ret = hns3_handle_action_queue_region(dev, actions,
 368                                                               rule, error);
 369                         if (ret)
 370                                 return ret;
 371                         break;
 372                 case RTE_FLOW_ACTION_TYPE_MARK:
 373                         mark =
 374                             (const struct rte_flow_action_mark *)actions->conf;
 375                         if (mark->id >= HNS3_MAX_FILTER_ID)
 376                                 return rte_flow_error_set(error, EINVAL,
 377                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 378                                                      actions,
 379                                                      "Invalid Mark ID");
 380                         rule->fd_id = mark->id;
 381                         rule->flags |= HNS3_RULE_FLAG_FDID;
 382                         break;
 383                 case RTE_FLOW_ACTION_TYPE_FLAG:
 384                         rule->fd_id = HNS3_MAX_FILTER_ID;
 385                         rule->flags |= HNS3_RULE_FLAG_FDID;
 386                         break;
 387                 case RTE_FLOW_ACTION_TYPE_COUNT:
 388                         act_count =
 389                             (const struct rte_flow_action_count *)actions->conf;
 390                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 391                         if (act_count->id >= counter_num)
 392                                 return rte_flow_error_set(error, EINVAL,
 393                                                      RTE_FLOW_ERROR_TYPE_ACTION,
 394                                                      actions,
 395                                                      "Invalid counter id");
 396                         rule->act_cnt = *act_count;
 397                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 398                         break;
 399                 case RTE_FLOW_ACTION_TYPE_VOID:
 400                         break;
 401                 default:
 402                         return rte_flow_error_set(error, ENOTSUP,
 403                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 404                                                   NULL, "Unsupported action");
 405                 }
 406         }
 407
 408         return 0;
 409 }
 410
 411 /* Parse to get the attr and action info of flow director rule. */
 412 static int
 413 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 414 {
 415         if (!attr->ingress)
 416                 return rte_flow_error_set(error, EINVAL,
 417                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 418                                           attr, "Ingress can't be zero");
 419         if (attr->egress)
 420                 return rte_flow_error_set(error, ENOTSUP,
 421                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 422                                           attr, "Not support egress");
 423         if (attr->transfer)
 424                 return rte_flow_error_set(error, ENOTSUP,
 425                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 426                                           attr, "No support for transfer");
 427         if (attr->priority)
 428                 return rte_flow_error_set(error, ENOTSUP,
 429                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 430                                           attr, "Not support priority");
 431         if (attr->group)
 432                 return rte_flow_error_set(error, ENOTSUP,
 433                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 434                                           attr, "Not support group");
 435         return 0;
 436 }
 437
 438 static int
 439 hns3_parse_eth(const struct rte_flow_item *item,
 440                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 441 {
 442         const struct rte_flow_item_eth *eth_spec;
 443         const struct rte_flow_item_eth *eth_mask;
 444
 445         if (item->spec == NULL && item->mask)
 446                 return rte_flow_error_set(error, EINVAL,
 447                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 448                                           "Can't configure FDIR with mask but without spec");
 449
 450         /* Only used to describe the protocol stack. */
 451         if (item->spec == NULL && item->mask == NULL)
 452                 return 0;
 453
 454         if (item->mask) {
 455                 eth_mask = item->mask;
 456                 if (eth_mask->type) {
 457                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 458                         rule->key_conf.mask.ether_type =
 459                             rte_be_to_cpu_16(eth_mask->type);
 460                 }
 461                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 462                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 463                         memcpy(rule->key_conf.mask.src_mac,
 464                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 465                 }
 466                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 467                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 468                         memcpy(rule->key_conf.mask.dst_mac,
 469                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 470                 }
 471         }
 472
 473         eth_spec = item->spec;
 474         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 475         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 476                RTE_ETHER_ADDR_LEN);
 477         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 478                RTE_ETHER_ADDR_LEN);
 479         return 0;
 480 }
 481
 482 static int
 483 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 484                 struct rte_flow_error *error)
 485 {
 486         const struct rte_flow_item_vlan *vlan_spec;
 487         const struct rte_flow_item_vlan *vlan_mask;
 488
 489         if (item->spec == NULL && item->mask)
 490                 return rte_flow_error_set(error, EINVAL,
 491                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 492                                           "Can't configure FDIR with mask but without spec");
 493
 494         rule->key_conf.vlan_num++;
 495         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 496                 return rte_flow_error_set(error, EINVAL,
 497                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 498                                           "Vlan_num is more than 2");
 499
 500         /* Only used to describe the protocol stack. */
 501         if (item->spec == NULL && item->mask == NULL)
 502                 return 0;
 503
 504         if (item->mask) {
 505                 vlan_mask = item->mask;
 506                 if (vlan_mask->tci) {
 507                         if (rule->key_conf.vlan_num == 1) {
 508                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 509                                              1);
 510                                 rule->key_conf.mask.vlan_tag1 =
 511                                     rte_be_to_cpu_16(vlan_mask->tci);
 512                         } else {
 513                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 514                                              1);
 515                                 rule->key_conf.mask.vlan_tag2 =
 516                                     rte_be_to_cpu_16(vlan_mask->tci);
 517                         }
 518                 }
 519         }
 520
 521         vlan_spec = item->spec;
 522         if (rule->key_conf.vlan_num == 1)
 523                 rule->key_conf.spec.vlan_tag1 =
 524                     rte_be_to_cpu_16(vlan_spec->tci);
 525         else
 526                 rule->key_conf.spec.vlan_tag2 =
 527                     rte_be_to_cpu_16(vlan_spec->tci);
 528         return 0;
 529 }
 530
 531 static int
 532 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 533                 struct rte_flow_error *error)
 534 {
 535         const struct rte_flow_item_ipv4 *ipv4_spec;
 536         const struct rte_flow_item_ipv4 *ipv4_mask;
 537
 538         if (item->spec == NULL && item->mask)
 539                 return rte_flow_error_set(error, EINVAL,
 540                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 541                                           "Can't configure FDIR with mask but without spec");
 542
 543         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 544         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 545         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 546         /* Only used to describe the protocol stack. */
 547         if (item->spec == NULL && item->mask == NULL)
 548                 return 0;
 549
 550         if (item->mask) {
 551                 ipv4_mask = item->mask;
 552
 553                 if (ipv4_mask->hdr.total_length ||
 554                     ipv4_mask->hdr.packet_id ||
 555                     ipv4_mask->hdr.fragment_offset ||
 556                     ipv4_mask->hdr.time_to_live ||
 557                     ipv4_mask->hdr.hdr_checksum) {
 558                         return rte_flow_error_set(error, EINVAL,
 559                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 560                                                   item,
 561                                                   "Only support src & dst ip,tos,proto in IPV4");
 562                 }
 563
 564                 if (ipv4_mask->hdr.src_addr) {
 565                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 566                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 567                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 568                 }
 569
 570                 if (ipv4_mask->hdr.dst_addr) {
 571                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 572                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 573                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 574                 }
 575
 576                 if (ipv4_mask->hdr.type_of_service) {
 577                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 578                         rule->key_conf.mask.ip_tos =
 579                             ipv4_mask->hdr.type_of_service;
 580                 }
 581
 582                 if (ipv4_mask->hdr.next_proto_id) {
 583                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 584                         rule->key_conf.mask.ip_proto =
 585                             ipv4_mask->hdr.next_proto_id;
 586                 }
 587         }
 588
 589         ipv4_spec = item->spec;
 590         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 591             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 592         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 593             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 594         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 595         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 596         return 0;
 597 }
 598
 599 static int
 600 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 601                 struct rte_flow_error *error)
 602 {
 603         const struct rte_flow_item_ipv6 *ipv6_spec;
 604         const struct rte_flow_item_ipv6 *ipv6_mask;
 605
 606         if (item->spec == NULL && item->mask)
 607                 return rte_flow_error_set(error, EINVAL,
 608                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 609                                           "Can't configure FDIR with mask but without spec");
 610
 611         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 612         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 613         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 614
 615         /* Only used to describe the protocol stack. */
 616         if (item->spec == NULL && item->mask == NULL)
 617                 return 0;
 618
 619         if (item->mask) {
 620                 ipv6_mask = item->mask;
 621                 if (ipv6_mask->hdr.vtc_flow ||
 622                     ipv6_mask->hdr.payload_len || ipv6_mask->hdr.hop_limits) {
 623                         return rte_flow_error_set(error, EINVAL,
 624                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 625                                                   item,
 626                                                   "Only support src & dst ip,proto in IPV6");
 627                 }
 628                 net_addr_to_host(rule->key_conf.mask.src_ip,
 629                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 630                                  IP_ADDR_LEN);
 631                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 632                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 633                                  IP_ADDR_LEN);
 634                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 635                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 636                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 637                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 638                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 639                 if (ipv6_mask->hdr.proto)
 640                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 641         }
 642
 643         ipv6_spec = item->spec;
 644         net_addr_to_host(rule->key_conf.spec.src_ip,
 645                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 646                          IP_ADDR_LEN);
 647         net_addr_to_host(rule->key_conf.spec.dst_ip,
 648                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 649                          IP_ADDR_LEN);
 650         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 651
 652         return 0;
 653 }
 654
 655 static int
 656 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 657                struct rte_flow_error *error)
 658 {
 659         const struct rte_flow_item_tcp *tcp_spec;
 660         const struct rte_flow_item_tcp *tcp_mask;
 661
 662         if (item->spec == NULL && item->mask)
 663                 return rte_flow_error_set(error, EINVAL,
 664                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 665                                           "Can't configure FDIR with mask but without spec");
 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 (tcp_mask->hdr.sent_seq ||
 678                     tcp_mask->hdr.recv_ack ||
 679                     tcp_mask->hdr.data_off ||
 680                     tcp_mask->hdr.tcp_flags ||
 681                     tcp_mask->hdr.rx_win ||
 682                     tcp_mask->hdr.cksum || tcp_mask->hdr.tcp_urp) {
 683                         return rte_flow_error_set(error, EINVAL,
 684                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 685                                                   item,
 686                                                   "Only support src & dst port in TCP");
 687                 }
 688
 689                 if (tcp_mask->hdr.src_port) {
 690                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 691                         rule->key_conf.mask.src_port =
 692                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 693                 }
 694                 if (tcp_mask->hdr.dst_port) {
 695                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 696                         rule->key_conf.mask.dst_port =
 697                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 698                 }
 699         }
 700
 701         tcp_spec = item->spec;
 702         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 703         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 704
 705         return 0;
 706 }
 707
 708 static int
 709 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 710                struct rte_flow_error *error)
 711 {
 712         const struct rte_flow_item_udp *udp_spec;
 713         const struct rte_flow_item_udp *udp_mask;
 714
 715         if (item->spec == NULL && item->mask)
 716                 return rte_flow_error_set(error, EINVAL,
 717                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 718                                           "Can't configure FDIR with mask but without spec");
 719
 720         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 721         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 722         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 723         /* Only used to describe the protocol stack. */
 724         if (item->spec == NULL && item->mask == NULL)
 725                 return 0;
 726
 727         if (item->mask) {
 728                 udp_mask = item->mask;
 729                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 730                         return rte_flow_error_set(error, EINVAL,
 731                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 732                                                   item,
 733                                                   "Only support src & dst port in UDP");
 734                 }
 735                 if (udp_mask->hdr.src_port) {
 736                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 737                         rule->key_conf.mask.src_port =
 738                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 739                 }
 740                 if (udp_mask->hdr.dst_port) {
 741                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 742                         rule->key_conf.mask.dst_port =
 743                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 744                 }
 745         }
 746
 747         udp_spec = item->spec;
 748         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 749         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 750
 751         return 0;
 752 }
 753
 754 static int
 755 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 756                 struct rte_flow_error *error)
 757 {
 758         const struct rte_flow_item_sctp *sctp_spec;
 759         const struct rte_flow_item_sctp *sctp_mask;
 760
 761         if (item->spec == NULL && item->mask)
 762                 return rte_flow_error_set(error, EINVAL,
 763                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 764                                           "Can't configure FDIR with mask but without spec");
 765
 766         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 767         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 768         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 769
 770         /* Only used to describe the protocol stack. */
 771         if (item->spec == NULL && item->mask == NULL)
 772                 return 0;
 773
 774         if (item->mask) {
 775                 sctp_mask = item->mask;
 776                 if (sctp_mask->hdr.cksum)
 777                         return rte_flow_error_set(error, EINVAL,
 778                                                   RTE_FLOW_ERROR_TYPE_ITEM,
 779                                                   item,
 780                                                   "Only support src & dst port in SCTP");
 781
 782                 if (sctp_mask->hdr.src_port) {
 783                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 784                         rule->key_conf.mask.src_port =
 785                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 786                 }
 787                 if (sctp_mask->hdr.dst_port) {
 788                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 789                         rule->key_conf.mask.dst_port =
 790                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 791                 }
 792                 if (sctp_mask->hdr.tag) {
 793                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 794                         rule->key_conf.mask.sctp_tag =
 795                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 796                 }
 797         }
 798
 799         sctp_spec = item->spec;
 800         rule->key_conf.spec.src_port =
 801             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 802         rule->key_conf.spec.dst_port =
 803             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 804         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 805
 806         return 0;
 807 }
 808
 809 /*
 810  * Check items before tunnel, save inner configs to outer configs,and clear
 811  * inner configs.
 812  * The key consists of two parts: meta_data and tuple keys.
 813  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 814  * packet(1bit).
 815  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 816  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 817  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 818  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 819  * Vlantag2(16bit) and sctp-tag(32bit).
 820  */
 821 static int
 822 hns3_handle_tunnel(const struct rte_flow_item *item,
 823                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 824 {
 825         /* check eth config */
 826         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 827                 return rte_flow_error_set(error, EINVAL,
 828                                           RTE_FLOW_ERROR_TYPE_ITEM,
 829                                           item, "Outer eth mac is unsupported");
 830         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 831                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 832                 rule->key_conf.spec.outer_ether_type =
 833                     rule->key_conf.spec.ether_type;
 834                 rule->key_conf.mask.outer_ether_type =
 835                     rule->key_conf.mask.ether_type;
 836                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 837                 rule->key_conf.spec.ether_type = 0;
 838                 rule->key_conf.mask.ether_type = 0;
 839         }
 840
 841         /* check vlan config */
 842         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 843                 return rte_flow_error_set(error, EINVAL,
 844                                           RTE_FLOW_ERROR_TYPE_ITEM,
 845                                           item,
 846                                           "Outer vlan tags is unsupported");
 847
 848         /* clear vlan_num for inner vlan select */
 849         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 850         rule->key_conf.vlan_num = 0;
 851
 852         /* check L3 config */
 853         if (rule->input_set &
 854             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 855                 return rte_flow_error_set(error, EINVAL,
 856                                           RTE_FLOW_ERROR_TYPE_ITEM,
 857                                           item, "Outer ip is unsupported");
 858         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 859                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 860                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 861                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 862                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 863                 rule->key_conf.spec.ip_proto = 0;
 864                 rule->key_conf.mask.ip_proto = 0;
 865         }
 866
 867         /* check L4 config */
 868         if (rule->input_set & BIT(INNER_SCTP_TAG))
 869                 return rte_flow_error_set(error, EINVAL,
 870                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 871                                           "Outer sctp tag is unsupported");
 872
 873         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 874                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 875                 rule->key_conf.spec.outer_src_port =
 876                     rule->key_conf.spec.src_port;
 877                 rule->key_conf.mask.outer_src_port =
 878                     rule->key_conf.mask.src_port;
 879                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 880                 rule->key_conf.spec.src_port = 0;
 881                 rule->key_conf.mask.src_port = 0;
 882         }
 883         if (rule->input_set & BIT(INNER_DST_PORT)) {
 884                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 885                 rule->key_conf.spec.dst_port = 0;
 886                 rule->key_conf.mask.dst_port = 0;
 887         }
 888         return 0;
 889 }
 890
 891 static int
 892 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 893                  struct rte_flow_error *error)
 894 {
 895         const struct rte_flow_item_vxlan *vxlan_spec;
 896         const struct rte_flow_item_vxlan *vxlan_mask;
 897
 898         if (item->spec == NULL && item->mask)
 899                 return rte_flow_error_set(error, EINVAL,
 900                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 901                                           "Can't configure FDIR with mask but without spec");
 902         else if (item->spec && (item->mask == NULL))
 903                 return rte_flow_error_set(error, EINVAL,
 904                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 905                                           "Tunnel packets must configure with mask");
 906
 907         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 908         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 909         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 910                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 911         else
 912                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 913
 914         /* Only used to describe the protocol stack. */
 915         if (item->spec == NULL && item->mask == NULL)
 916                 return 0;
 917
 918         vxlan_mask = item->mask;
 919         vxlan_spec = item->spec;
 920
 921         if (vxlan_mask->flags)
 922                 return rte_flow_error_set(error, EINVAL,
 923                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 924                                           "Flags is not supported in VxLAN");
 925
 926         /* VNI must be totally masked or not. */
 927         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 928             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 929                 return rte_flow_error_set(error, EINVAL,
 930                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 931                                           "VNI must be totally masked or not in VxLAN");
 932         if (vxlan_mask->vni[0]) {
 933                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 934                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 935                            VNI_OR_TNI_LEN);
 936         }
 937         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 938                    VNI_OR_TNI_LEN);
 939         return 0;
 940 }
 941
 942 static int
 943 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 944                  struct rte_flow_error *error)
 945 {
 946         const struct rte_flow_item_nvgre *nvgre_spec;
 947         const struct rte_flow_item_nvgre *nvgre_mask;
 948
 949         if (item->spec == NULL && item->mask)
 950                 return rte_flow_error_set(error, EINVAL,
 951                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 952                                           "Can't configure FDIR with mask but without spec");
 953         else if (item->spec && (item->mask == NULL))
 954                 return rte_flow_error_set(error, EINVAL,
 955                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 956                                           "Tunnel packets must configure with mask");
 957
 958         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 959         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 960         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 961
 962         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 963         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 964         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 965         /* Only used to describe the protocol stack. */
 966         if (item->spec == NULL && item->mask == NULL)
 967                 return 0;
 968
 969         nvgre_mask = item->mask;
 970         nvgre_spec = item->spec;
 971
 972         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 973                 return rte_flow_error_set(error, EINVAL,
 974                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 975                                           "Ver/protocal is not supported in NVGRE");
 976
 977         /* TNI must be totally masked or not. */
 978         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 979             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 980                 return rte_flow_error_set(error, EINVAL,
 981                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 982                                           "TNI must be totally masked or not in NVGRE");
 983
 984         if (nvgre_mask->tni[0]) {
 985                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 986                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 987                            VNI_OR_TNI_LEN);
 988         }
 989         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 990                    VNI_OR_TNI_LEN);
 991
 992         if (nvgre_mask->flow_id) {
 993                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 994                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 995         }
 996         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 997         return 0;
 998 }
 999
1000 static int
1001 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1002                   struct rte_flow_error *error)
1003 {
1004         const struct rte_flow_item_geneve *geneve_spec;
1005         const struct rte_flow_item_geneve *geneve_mask;
1006
1007         if (item->spec == NULL && item->mask)
1008                 return rte_flow_error_set(error, EINVAL,
1009                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1010                                           "Can't configure FDIR with mask but without spec");
1011         else if (item->spec && (item->mask == NULL))
1012                 return rte_flow_error_set(error, EINVAL,
1013                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1014                                           "Tunnel packets must configure with mask");
1015
1016         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
1017         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
1018         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
1019         /* Only used to describe the protocol stack. */
1020         if (item->spec == NULL && item->mask == NULL)
1021                 return 0;
1022
1023         geneve_mask = item->mask;
1024         geneve_spec = item->spec;
1025
1026         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
1027                 return rte_flow_error_set(error, EINVAL,
1028                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1029                                           "Ver/protocal is not supported in GENEVE");
1030         /* VNI must be totally masked or not. */
1031         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
1032             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
1033                 return rte_flow_error_set(error, EINVAL,
1034                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1035                                           "VNI must be totally masked or not in GENEVE");
1036         if (geneve_mask->vni[0]) {
1037                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
1038                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
1039                            VNI_OR_TNI_LEN);
1040         }
1041         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
1042                    VNI_OR_TNI_LEN);
1043         return 0;
1044 }
1045
1046 static int
1047 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1048                   struct rte_flow_error *error)
1049 {
1050         int ret;
1051
1052         switch (item->type) {
1053         case RTE_FLOW_ITEM_TYPE_VXLAN:
1054         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1055                 ret = hns3_parse_vxlan(item, rule, error);
1056                 break;
1057         case RTE_FLOW_ITEM_TYPE_NVGRE:
1058                 ret = hns3_parse_nvgre(item, rule, error);
1059                 break;
1060         case RTE_FLOW_ITEM_TYPE_GENEVE:
1061                 ret = hns3_parse_geneve(item, rule, error);
1062                 break;
1063         default:
1064                 return rte_flow_error_set(error, ENOTSUP,
1065                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1066                                           NULL, "Unsupported tunnel type!");
1067         }
1068         if (ret)
1069                 return ret;
1070         return hns3_handle_tunnel(item, rule, error);
1071 }
1072
1073 static int
1074 hns3_parse_normal(const struct rte_flow_item *item,
1075                   struct hns3_fdir_rule *rule,
1076                   struct items_step_mngr *step_mngr,
1077                   struct rte_flow_error *error)
1078 {
1079         int ret;
1080
1081         switch (item->type) {
1082         case RTE_FLOW_ITEM_TYPE_ETH:
1083                 ret = hns3_parse_eth(item, rule, error);
1084                 step_mngr->items = L2_next_items;
1085                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1086                 break;
1087         case RTE_FLOW_ITEM_TYPE_VLAN:
1088                 ret = hns3_parse_vlan(item, rule, error);
1089                 step_mngr->items = L2_next_items;
1090                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1091                 break;
1092         case RTE_FLOW_ITEM_TYPE_IPV4:
1093                 ret = hns3_parse_ipv4(item, rule, error);
1094                 step_mngr->items = L3_next_items;
1095                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1096                 break;
1097         case RTE_FLOW_ITEM_TYPE_IPV6:
1098                 ret = hns3_parse_ipv6(item, rule, error);
1099                 step_mngr->items = L3_next_items;
1100                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1101                 break;
1102         case RTE_FLOW_ITEM_TYPE_TCP:
1103                 ret = hns3_parse_tcp(item, rule, error);
1104                 step_mngr->items = L4_next_items;
1105                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1106                 break;
1107         case RTE_FLOW_ITEM_TYPE_UDP:
1108                 ret = hns3_parse_udp(item, rule, error);
1109                 step_mngr->items = L4_next_items;
1110                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1111                 break;
1112         case RTE_FLOW_ITEM_TYPE_SCTP:
1113                 ret = hns3_parse_sctp(item, rule, error);
1114                 step_mngr->items = L4_next_items;
1115                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1116                 break;
1117         default:
1118                 return rte_flow_error_set(error, ENOTSUP,
1119                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1120                                           NULL, "Unsupported normal type!");
1121         }
1122
1123         return ret;
1124 }
1125
1126 static int
1127 hns3_validate_item(const struct rte_flow_item *item,
1128                    struct items_step_mngr step_mngr,
1129                    struct rte_flow_error *error)
1130 {
1131         int i;
1132
1133         if (item->last)
1134                 return rte_flow_error_set(error, ENOTSUP,
1135                                           RTE_FLOW_ERROR_TYPE_UNSPECIFIED, item,
1136                                           "Not supported last point for range");
1137
1138         for (i = 0; i < step_mngr.count; i++) {
1139                 if (item->type == step_mngr.items[i])
1140                         break;
1141         }
1142
1143         if (i == step_mngr.count) {
1144                 return rte_flow_error_set(error, EINVAL,
1145                                           RTE_FLOW_ERROR_TYPE_ITEM,
1146                                           item, "Inval or missing item");
1147         }
1148         return 0;
1149 }
1150
1151 static inline bool
1152 is_tunnel_packet(enum rte_flow_item_type type)
1153 {
1154         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1155             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1156             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1157             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1158             type == RTE_FLOW_ITEM_TYPE_MPLS)
1159                 return true;
1160         return false;
1161 }
1162
1163 /*
1164  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1165  * And get the flow director filter info BTW.
1166  * UDP/TCP/SCTP PATTERN:
1167  * The first not void item can be ETH or IPV4 or IPV6
1168  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1169  * The next not void item could be UDP or TCP or SCTP (optional)
1170  * The next not void item could be RAW (for flexbyte, optional)
1171  * The next not void item must be END.
1172  * A Fuzzy Match pattern can appear at any place before END.
1173  * Fuzzy Match is optional for IPV4 but is required for IPV6
1174  * MAC VLAN PATTERN:
1175  * The first not void item must be ETH.
1176  * The second not void item must be MAC VLAN.
1177  * The next not void item must be END.
1178  * ACTION:
1179  * The first not void action should be QUEUE or DROP.
1180  * The second not void optional action should be MARK,
1181  * mark_id is a uint32_t number.
1182  * The next not void action should be END.
1183  * UDP/TCP/SCTP pattern example:
1184  * ITEM         Spec                    Mask
1185  * ETH          NULL                    NULL
1186  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1187  *              dst_addr 192.167.3.50   0xFFFFFFFF
1188  * UDP/TCP/SCTP src_port        80      0xFFFF
1189  *              dst_port        80      0xFFFF
1190  * END
1191  * MAC VLAN pattern example:
1192  * ITEM         Spec                    Mask
1193  * ETH          dst_addr
1194                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1195                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1196  * MAC VLAN     tci     0x2016          0xEFFF
1197  * END
1198  * Other members in mask and spec should set to 0x00.
1199  * Item->last should be NULL.
1200  */
1201 static int
1202 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1203                        const struct rte_flow_item pattern[],
1204                        const struct rte_flow_action actions[],
1205                        struct hns3_fdir_rule *rule,
1206                        struct rte_flow_error *error)
1207 {
1208         struct hns3_adapter *hns = dev->data->dev_private;
1209         const struct rte_flow_item *item;
1210         struct items_step_mngr step_mngr;
1211         int ret;
1212
1213         /* FDIR is available only in PF driver */
1214         if (hns->is_vf)
1215                 return rte_flow_error_set(error, ENOTSUP,
1216                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1217                                           "Fdir not supported in VF");
1218
1219         if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
1220                 return rte_flow_error_set(error, ENOTSUP,
1221                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM, NULL,
1222                                           "fdir_conf.mode isn't perfect");
1223
1224         step_mngr.items = first_items;
1225         step_mngr.count = ARRAY_SIZE(first_items);
1226         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1227                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1228                         continue;
1229
1230                 ret = hns3_validate_item(item, step_mngr, error);
1231                 if (ret)
1232                         return ret;
1233
1234                 if (is_tunnel_packet(item->type)) {
1235                         ret = hns3_parse_tunnel(item, rule, error);
1236                         if (ret)
1237                                 return ret;
1238                         step_mngr.items = tunnel_next_items;
1239                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1240                 } else {
1241                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1242                         if (ret)
1243                                 return ret;
1244                 }
1245         }
1246
1247         return hns3_handle_actions(dev, actions, rule, error);
1248 }
1249
1250 void
1251 hns3_filterlist_init(struct rte_eth_dev *dev)
1252 {
1253         struct hns3_process_private *process_list = dev->process_private;
1254
1255         TAILQ_INIT(&process_list->fdir_list);
1256         TAILQ_INIT(&process_list->filter_rss_list);
1257         TAILQ_INIT(&process_list->flow_list);
1258 }
1259
1260 static void
1261 hns3_filterlist_flush(struct rte_eth_dev *dev)
1262 {
1263         struct hns3_process_private *process_list = dev->process_private;
1264         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1265         struct hns3_rss_conf_ele *rss_filter_ptr;
1266         struct hns3_flow_mem *flow_node;
1267
1268         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1269         while (fdir_rule_ptr) {
1270                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1271                 rte_free(fdir_rule_ptr);
1272                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1273         }
1274
1275         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1276         while (rss_filter_ptr) {
1277                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1278                              entries);
1279                 rte_free(rss_filter_ptr);
1280                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1281         }
1282
1283         flow_node = TAILQ_FIRST(&process_list->flow_list);
1284         while (flow_node) {
1285                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1286                 rte_free(flow_node->flow);
1287                 rte_free(flow_node);
1288                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1289         }
1290 }
1291
1292 static bool
1293 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1294                      const struct rte_flow_action_rss *with)
1295 {
1296         bool func_is_same;
1297
1298         /*
1299          * When user flush all RSS rule, RSS func is set invalid with
1300          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1301          * flushed, any validate RSS func is different with it before
1302          * flushed. Others, when user create an action RSS with RSS func
1303          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1304          * between continuous RSS flow.
1305          */
1306         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1307                 func_is_same = false;
1308         else
1309                 func_is_same = (with->func ? (comp->func == with->func) : true);
1310
1311         return (func_is_same &&
1312                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1313                 comp->level == with->level && comp->key_len == with->key_len &&
1314                 comp->queue_num == with->queue_num &&
1315                 !memcmp(comp->key, with->key, with->key_len) &&
1316                 !memcmp(comp->queue, with->queue,
1317                         sizeof(*with->queue) * with->queue_num));
1318 }
1319
1320 static int
1321 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1322                    const struct rte_flow_action_rss *in)
1323 {
1324         if (in->key_len > RTE_DIM(out->key) ||
1325             in->queue_num > RTE_DIM(out->queue))
1326                 return -EINVAL;
1327         if (in->key == NULL && in->key_len)
1328                 return -EINVAL;
1329         out->conf = (struct rte_flow_action_rss) {
1330                 .func = in->func,
1331                 .level = in->level,
1332                 .types = in->types,
1333                 .key_len = in->key_len,
1334                 .queue_num = in->queue_num,
1335         };
1336         out->conf.queue =
1337                 memcpy(out->queue, in->queue,
1338                        sizeof(*in->queue) * in->queue_num);
1339         if (in->key)
1340                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1341
1342         return 0;
1343 }
1344
1345 /*
1346  * This function is used to parse rss action validatation.
1347  */
1348 static int
1349 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1350                       const struct rte_flow_action *actions,
1351                       struct rte_flow_error *error)
1352 {
1353         struct hns3_adapter *hns = dev->data->dev_private;
1354         struct hns3_hw *hw = &hns->hw;
1355         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1356         const struct rte_flow_action_rss *rss;
1357         const struct rte_flow_action *act;
1358         uint32_t act_index = 0;
1359         uint64_t flow_types;
1360         uint16_t n;
1361
1362         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1363         rss = act->conf;
1364
1365         if (rss == NULL) {
1366                 return rte_flow_error_set(error, EINVAL,
1367                                           RTE_FLOW_ERROR_TYPE_ACTION,
1368                                           act, "no valid queues");
1369         }
1370
1371         for (n = 0; n < rss->queue_num; n++) {
1372                 if (rss->queue[n] < dev->data->nb_rx_queues)
1373                         continue;
1374                 return rte_flow_error_set(error, EINVAL,
1375                                           RTE_FLOW_ERROR_TYPE_ACTION,
1376                                           act,
1377                                           "queue id > max number of queues");
1378         }
1379
1380         /* Parse flow types of RSS */
1381         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1382                 return rte_flow_error_set(error, EINVAL,
1383                                           RTE_FLOW_ERROR_TYPE_ACTION,
1384                                           act,
1385                                           "Flow types is unsupported by "
1386                                           "hns3's RSS");
1387
1388         flow_types = rss->types & HNS3_ETH_RSS_SUPPORT;
1389         if (flow_types != rss->types)
1390                 hns3_warn(hw, "RSS flow types(%" PRIx64 ") include unsupported "
1391                           "flow types", rss->types);
1392
1393         /* Parse RSS related parameters from RSS configuration */
1394         switch (rss->func) {
1395         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1396         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1397         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1398         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1399                 break;
1400         default:
1401                 return rte_flow_error_set(error, ENOTSUP,
1402                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1403                                           "input RSS hash functions are not supported");
1404         }
1405
1406         if (rss->level)
1407                 return rte_flow_error_set(error, ENOTSUP,
1408                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1409                                           "a nonzero RSS encapsulation level is not supported");
1410         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1411                 return rte_flow_error_set(error, ENOTSUP,
1412                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1413                                           "RSS hash key must be exactly 40 bytes");
1414         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1415                 return rte_flow_error_set(error, ENOTSUP,
1416                                           RTE_FLOW_ERROR_TYPE_ACTION, act,
1417                                           "too many queues for RSS context");
1418
1419         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1420             (rss->types & ETH_RSS_IP))
1421                 return rte_flow_error_set(error, EINVAL,
1422                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1423                                           &rss->types,
1424                                           "input RSS types are not supported");
1425
1426         act_index++;
1427
1428         /* Check if the next not void action is END */
1429         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1430         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1431                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1432                 return rte_flow_error_set(error, EINVAL,
1433                                           RTE_FLOW_ERROR_TYPE_ACTION,
1434                                           act, "Not supported action.");
1435         }
1436
1437         return 0;
1438 }
1439
1440 static int
1441 hns3_disable_rss(struct hns3_hw *hw)
1442 {
1443         int ret;
1444
1445         /* Redirected the redirection table to queue 0 */
1446         ret = hns3_rss_reset_indir_table(hw);
1447         if (ret)
1448                 return ret;
1449
1450         /* Disable RSS */
1451         hw->rss_info.conf.types = 0;
1452         hw->rss_dis_flag = true;
1453
1454         return 0;
1455 }
1456
1457 static void
1458 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1459 {
1460         if (rss_conf->key == NULL ||
1461             rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1462                 hns3_info(hw, "Default RSS hash key to be set");
1463                 rss_conf->key = hns3_hash_key;
1464                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1465         }
1466 }
1467
1468 static int
1469 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1470                          uint8_t *hash_algo)
1471 {
1472         enum rte_eth_hash_function algo_func = *func;
1473         switch (algo_func) {
1474         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1475                 /* Keep *hash_algo as what it used to be */
1476                 algo_func = hw->rss_info.conf.func;
1477                 break;
1478         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1479                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1480                 break;
1481         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1482                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1483                 break;
1484         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1485                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1486                 break;
1487         default:
1488                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1489                          algo_func);
1490                 return -EINVAL;
1491         }
1492         *func = algo_func;
1493
1494         return 0;
1495 }
1496
1497 static int
1498 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1499 {
1500         struct hns3_rss_tuple_cfg *tuple;
1501         int ret;
1502
1503         /* Parse hash key */
1504         hns3_parse_rss_key(hw, rss_config);
1505
1506         /* Parse hash algorithm */
1507         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1508                                        &hw->rss_info.hash_algo);
1509         if (ret)
1510                 return ret;
1511
1512         ret = hns3_set_rss_algo_key(hw, rss_config->key);
1513         if (ret)
1514                 return ret;
1515
1516         /* Update algorithm of hw */
1517         hw->rss_info.conf.func = rss_config->func;
1518
1519         /* Set flow type supported */
1520         tuple = &hw->rss_info.rss_tuple_sets;
1521         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1522         if (ret)
1523                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1524
1525         return ret;
1526 }
1527
1528 static int
1529 hns3_update_indir_table(struct rte_eth_dev *dev,
1530                         const struct rte_flow_action_rss *conf, uint16_t num)
1531 {
1532         struct hns3_adapter *hns = dev->data->dev_private;
1533         struct hns3_hw *hw = &hns->hw;
1534         uint8_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1535         uint16_t j, allow_rss_queues;
1536         uint8_t queue_id;
1537         uint32_t i;
1538
1539         allow_rss_queues = RTE_MIN(dev->data->nb_rx_queues, hw->rss_size_max);
1540         /* Fill in redirection table */
1541         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1542                HNS3_RSS_IND_TBL_SIZE);
1543         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1544                 j %= num;
1545                 if (conf->queue[j] >= allow_rss_queues) {
1546                         hns3_err(hw, "Invalid queue id(%u) to be set in "
1547                                      "redirection table, max number of rss "
1548                                      "queues: %u", conf->queue[j],
1549                                  allow_rss_queues);
1550                         return -EINVAL;
1551                 }
1552                 queue_id = conf->queue[j];
1553                 indir_tbl[i] = queue_id;
1554         }
1555
1556         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1557 }
1558
1559 static int
1560 hns3_config_rss_filter(struct rte_eth_dev *dev,
1561                        const struct hns3_rss_conf *conf, bool add)
1562 {
1563         struct hns3_process_private *process_list = dev->process_private;
1564         struct hns3_adapter *hns = dev->data->dev_private;
1565         struct hns3_rss_conf_ele *rss_filter_ptr;
1566         struct hns3_hw *hw = &hns->hw;
1567         struct hns3_rss_conf *rss_info;
1568         uint64_t flow_types;
1569         uint16_t num;
1570         int ret;
1571
1572         struct rte_flow_action_rss rss_flow_conf = {
1573                 .func = conf->conf.func,
1574                 .level = conf->conf.level,
1575                 .types = conf->conf.types,
1576                 .key_len = conf->conf.key_len,
1577                 .queue_num = conf->conf.queue_num,
1578                 .key = conf->conf.key_len ?
1579                     (void *)(uintptr_t)conf->conf.key : NULL,
1580                 .queue = conf->conf.queue,
1581         };
1582
1583         /* Filter the unsupported flow types */
1584         flow_types = conf->conf.types ?
1585                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1586                      hw->rss_info.conf.types;
1587         if (flow_types != rss_flow_conf.types)
1588                 hns3_warn(hw, "modified RSS types based on hardware support, "
1589                               "requested:%" PRIx64 " configured:%" PRIx64,
1590                           rss_flow_conf.types, flow_types);
1591         /* Update the useful flow types */
1592         rss_flow_conf.types = flow_types;
1593
1594         rss_info = &hw->rss_info;
1595         if (!add) {
1596                 if (!conf->valid)
1597                         return 0;
1598
1599                 ret = hns3_disable_rss(hw);
1600                 if (ret) {
1601                         hns3_err(hw, "RSS disable failed(%d)", ret);
1602                         return ret;
1603                 }
1604
1605                 if (rss_flow_conf.queue_num) {
1606                         /*
1607                          * Due the content of queue pointer have been reset to
1608                          * 0, the rss_info->conf.queue should be set NULL
1609                          */
1610                         rss_info->conf.queue = NULL;
1611                         rss_info->conf.queue_num = 0;
1612                 }
1613
1614                 /* set RSS func invalid after flushed */
1615                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1616                 return 0;
1617         }
1618
1619         /* Get rx queues num */
1620         num = dev->data->nb_rx_queues;
1621
1622         /* Set rx queues to use */
1623         num = RTE_MIN(num, rss_flow_conf.queue_num);
1624         if (rss_flow_conf.queue_num > num)
1625                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1626                           rss_flow_conf.queue_num);
1627         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1628
1629         rte_spinlock_lock(&hw->lock);
1630         if (num) {
1631                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1632                 if (ret)
1633                         goto rss_config_err;
1634         }
1635
1636         /* Set hash algorithm and flow types by the user's config */
1637         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1638         if (ret)
1639                 goto rss_config_err;
1640
1641         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1642         if (ret) {
1643                 hns3_err(hw, "RSS config init fail(%d)", ret);
1644                 goto rss_config_err;
1645         }
1646
1647         /*
1648          * When create a new RSS rule, the old rule will be overlaid and set
1649          * invalid.
1650          */
1651         TAILQ_FOREACH(rss_filter_ptr, &process_list->filter_rss_list, entries)
1652                 rss_filter_ptr->filter_info.valid = false;
1653
1654 rss_config_err:
1655         rte_spinlock_unlock(&hw->lock);
1656
1657         return ret;
1658 }
1659
1660 /* Remove the rss filter */
1661 static int
1662 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1663 {
1664         struct hns3_process_private *process_list = dev->process_private;
1665         struct hns3_adapter *hns = dev->data->dev_private;
1666         struct hns3_rss_conf_ele *rss_filter_ptr;
1667         struct hns3_hw *hw = &hns->hw;
1668         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1669         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1670         int ret = 0;
1671
1672         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1673         while (rss_filter_ptr) {
1674                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1675                              entries);
1676                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1677                                              false);
1678                 if (ret)
1679                         rss_rule_fail_cnt++;
1680                 else
1681                         rss_rule_succ_cnt++;
1682                 rte_free(rss_filter_ptr);
1683                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1684         }
1685
1686         if (rss_rule_fail_cnt) {
1687                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1688                              "fail num = %d", rss_rule_succ_cnt,
1689                              rss_rule_fail_cnt);
1690                 ret = -EIO;
1691         }
1692
1693         return ret;
1694 }
1695
1696 /* Restore the rss filter */
1697 int
1698 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1699 {
1700         struct hns3_adapter *hns = dev->data->dev_private;
1701         struct hns3_hw *hw = &hns->hw;
1702
1703         /* When user flush all rules, it doesn't need to restore RSS rule */
1704         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1705                 return 0;
1706
1707         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1708 }
1709
1710 static int
1711 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1712                     const struct hns3_rss_conf *conf, bool add)
1713 {
1714         struct hns3_adapter *hns = dev->data->dev_private;
1715         struct hns3_hw *hw = &hns->hw;
1716         bool ret;
1717
1718         /* Action rss same */
1719         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1720         if (ret) {
1721                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1722                 return -EINVAL;
1723         }
1724
1725         return hns3_config_rss_filter(dev, conf, add);
1726 }
1727
1728 static int
1729 hns3_flow_args_check(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         if (pattern == NULL)
1735                 return rte_flow_error_set(error, EINVAL,
1736                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1737                                           NULL, "NULL pattern.");
1738
1739         if (actions == NULL)
1740                 return rte_flow_error_set(error, EINVAL,
1741                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1742                                           NULL, "NULL action.");
1743
1744         if (attr == NULL)
1745                 return rte_flow_error_set(error, EINVAL,
1746                                           RTE_FLOW_ERROR_TYPE_ATTR,
1747                                           NULL, "NULL attribute.");
1748
1749         return hns3_check_attr(attr, error);
1750 }
1751
1752 /*
1753  * Check if the flow rule is supported by hns3.
1754  * It only checkes the format. Don't guarantee the rule can be programmed into
1755  * the HW. Because there can be no enough room for the rule.
1756  */
1757 static int
1758 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1759                    const struct rte_flow_item pattern[],
1760                    const struct rte_flow_action actions[],
1761                    struct rte_flow_error *error)
1762 {
1763         struct hns3_fdir_rule fdir_rule;
1764         int ret;
1765
1766         ret = hns3_flow_args_check(attr, pattern, actions, error);
1767         if (ret)
1768                 return ret;
1769
1770         if (hns3_find_rss_general_action(pattern, actions))
1771                 return hns3_parse_rss_filter(dev, actions, error);
1772
1773         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1774         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1775 }
1776
1777 /*
1778  * Create or destroy a flow rule.
1779  * Theorically one rule can match more than one filters.
1780  * We will let it use the filter which it hitt first.
1781  * So, the sequence matters.
1782  */
1783 static struct rte_flow *
1784 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1785                  const struct rte_flow_item pattern[],
1786                  const struct rte_flow_action actions[],
1787                  struct rte_flow_error *error)
1788 {
1789         struct hns3_process_private *process_list = dev->process_private;
1790         struct hns3_adapter *hns = dev->data->dev_private;
1791         struct hns3_hw *hw = &hns->hw;
1792         const struct hns3_rss_conf *rss_conf;
1793         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1794         struct hns3_rss_conf_ele *rss_filter_ptr;
1795         struct hns3_flow_mem *flow_node;
1796         const struct rte_flow_action *act;
1797         struct rte_flow *flow;
1798         struct hns3_fdir_rule fdir_rule;
1799         int ret;
1800
1801         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1802         if (ret)
1803                 return NULL;
1804
1805         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1806         if (flow == NULL) {
1807                 rte_flow_error_set(error, ENOMEM,
1808                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1809                                    "Failed to allocate flow memory");
1810                 return NULL;
1811         }
1812         flow_node = rte_zmalloc("hns3 flow node",
1813                                 sizeof(struct hns3_flow_mem), 0);
1814         if (flow_node == NULL) {
1815                 rte_flow_error_set(error, ENOMEM,
1816                                    RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1817                                    "Failed to allocate flow list memory");
1818                 rte_free(flow);
1819                 return NULL;
1820         }
1821
1822         flow_node->flow = flow;
1823         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1824
1825         act = hns3_find_rss_general_action(pattern, actions);
1826         if (act) {
1827                 rss_conf = act->conf;
1828
1829                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1830                 if (ret)
1831                         goto err;
1832
1833                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1834                                              sizeof(struct hns3_rss_conf_ele),
1835                                              0);
1836                 if (rss_filter_ptr == NULL) {
1837                         hns3_err(hw,
1838                                     "Failed to allocate hns3_rss_filter memory");
1839                         ret = -ENOMEM;
1840                         goto err;
1841                 }
1842                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1843                                    &rss_conf->conf);
1844                 rss_filter_ptr->filter_info.valid = true;
1845                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1846                                   rss_filter_ptr, entries);
1847
1848                 flow->rule = rss_filter_ptr;
1849                 flow->filter_type = RTE_ETH_FILTER_HASH;
1850                 return flow;
1851         }
1852
1853         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1854         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1855         if (ret)
1856                 goto out;
1857
1858         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1859                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1860                                        fdir_rule.act_cnt.id, error);
1861                 if (ret)
1862                         goto out;
1863
1864                 flow->counter_id = fdir_rule.act_cnt.id;
1865         }
1866         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1867         if (!ret) {
1868                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1869                                             sizeof(struct hns3_fdir_rule_ele),
1870                                             0);
1871                 if (fdir_rule_ptr == NULL) {
1872                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1873                         ret = -ENOMEM;
1874                         goto err_fdir;
1875                 }
1876                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1877                         sizeof(struct hns3_fdir_rule));
1878                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1879                                   fdir_rule_ptr, entries);
1880                 flow->rule = fdir_rule_ptr;
1881                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1882
1883                 return flow;
1884         }
1885
1886 err_fdir:
1887         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1888                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1889
1890 err:
1891         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1892                            "Failed to create flow");
1893 out:
1894         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1895         rte_free(flow_node);
1896         rte_free(flow);
1897         return NULL;
1898 }
1899
1900 /* Destroy a flow rule on hns3. */
1901 static int
1902 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1903                   struct rte_flow_error *error)
1904 {
1905         struct hns3_process_private *process_list = dev->process_private;
1906         struct hns3_adapter *hns = dev->data->dev_private;
1907         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1908         struct hns3_rss_conf_ele *rss_filter_ptr;
1909         struct hns3_flow_mem *flow_node;
1910         enum rte_filter_type filter_type;
1911         struct hns3_fdir_rule fdir_rule;
1912         int ret;
1913
1914         if (flow == NULL)
1915                 return rte_flow_error_set(error, EINVAL,
1916                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1917                                           flow, "Flow is NULL");
1918         filter_type = flow->filter_type;
1919         switch (filter_type) {
1920         case RTE_ETH_FILTER_FDIR:
1921                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1922                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1923                            sizeof(struct hns3_fdir_rule));
1924
1925                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1926                 if (ret)
1927                         return rte_flow_error_set(error, EIO,
1928                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1929                                                   flow,
1930                                                   "Destroy FDIR fail.Try again");
1931                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1932                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1933                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1934                 rte_free(fdir_rule_ptr);
1935                 fdir_rule_ptr = NULL;
1936                 break;
1937         case RTE_ETH_FILTER_HASH:
1938                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1939                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1940                                              false);
1941                 if (ret)
1942                         return rte_flow_error_set(error, EIO,
1943                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1944                                                   flow,
1945                                                   "Destroy RSS fail.Try again");
1946                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1947                              entries);
1948                 rte_free(rss_filter_ptr);
1949                 rss_filter_ptr = NULL;
1950                 break;
1951         default:
1952                 return rte_flow_error_set(error, EINVAL,
1953                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1954                                           "Unsupported filter type");
1955         }
1956
1957         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1958                 if (flow_node->flow == flow) {
1959                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1960                                      entries);
1961                         rte_free(flow_node);
1962                         flow_node = NULL;
1963                         break;
1964                 }
1965         }
1966         rte_free(flow);
1967         flow = NULL;
1968
1969         return 0;
1970 }
1971
1972 /*  Destroy all flow rules associated with a port on hns3. */
1973 static int
1974 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1975 {
1976         struct hns3_adapter *hns = dev->data->dev_private;
1977         int ret;
1978
1979         /* FDIR is available only in PF driver */
1980         if (!hns->is_vf) {
1981                 ret = hns3_clear_all_fdir_filter(hns);
1982                 if (ret) {
1983                         rte_flow_error_set(error, ret,
1984                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1985                                            NULL, "Failed to flush rule");
1986                         return ret;
1987                 }
1988                 hns3_counter_flush(dev);
1989         }
1990
1991         ret = hns3_clear_rss_filter(dev);
1992         if (ret) {
1993                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1994                                    NULL, "Failed to flush rss filter");
1995                 return ret;
1996         }
1997
1998         hns3_filterlist_flush(dev);
1999
2000         return 0;
2001 }
2002
2003 /* Query an existing flow rule. */
2004 static int
2005 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
2006                 const struct rte_flow_action *actions, void *data,
2007                 struct rte_flow_error *error)
2008 {
2009         struct rte_flow_action_rss *rss_conf;
2010         struct hns3_rss_conf_ele *rss_rule;
2011         struct rte_flow_query_count *qc;
2012         int ret;
2013
2014         if (!flow->rule)
2015                 return rte_flow_error_set(error, EINVAL,
2016                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
2017
2018         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
2019                 switch (actions->type) {
2020                 case RTE_FLOW_ACTION_TYPE_VOID:
2021                         break;
2022                 case RTE_FLOW_ACTION_TYPE_COUNT:
2023                         qc = (struct rte_flow_query_count *)data;
2024                         ret = hns3_counter_query(dev, flow, qc, error);
2025                         if (ret)
2026                                 return ret;
2027                         break;
2028                 case RTE_FLOW_ACTION_TYPE_RSS:
2029                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
2030                                 return rte_flow_error_set(error, ENOTSUP,
2031                                         RTE_FLOW_ERROR_TYPE_ACTION,
2032                                         actions, "action is not supported");
2033                         }
2034                         rss_conf = (struct rte_flow_action_rss *)data;
2035                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
2036                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
2037                                    sizeof(struct rte_flow_action_rss));
2038                         break;
2039                 default:
2040                         return rte_flow_error_set(error, ENOTSUP,
2041                                 RTE_FLOW_ERROR_TYPE_ACTION,
2042                                 actions, "action is not supported");
2043                 }
2044         }
2045
2046         return 0;
2047 }
2048
2049 static const struct rte_flow_ops hns3_flow_ops = {
2050         .validate = hns3_flow_validate,
2051         .create = hns3_flow_create,
2052         .destroy = hns3_flow_destroy,
2053         .flush = hns3_flow_flush,
2054         .query = hns3_flow_query,
2055         .isolate = NULL,
2056 };
2057
2058 /*
2059  * The entry of flow API.
2060  * @param dev
2061  *   Pointer to Ethernet device.
2062  * @return
2063  *   0 on success, a negative errno value otherwise is set.
2064  */
2065 int
2066 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
2067                      enum rte_filter_op filter_op, void *arg)
2068 {
2069         struct hns3_hw *hw;
2070         int ret = 0;
2071
2072         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2073         switch (filter_type) {
2074         case RTE_ETH_FILTER_GENERIC:
2075                 if (filter_op != RTE_ETH_FILTER_GET)
2076                         return -EINVAL;
2077                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
2078                         return -ENODEV;
2079                 *(const void **)arg = &hns3_flow_ops;
2080                 break;
2081         default:
2082                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
2083                 ret = -EOPNOTSUPP;
2084                 break;
2085         }
2086
2087         return ret;
2088 }