drivers/net/hns3/hns3_flow.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018-2019 Hisilicon Limited.
   3  */
   4
   5 #include <rte_flow_driver.h>
   6 #include <rte_io.h>
   7 #include <rte_malloc.h>
   8
   9 #include "hns3_ethdev.h"
  10 #include "hns3_logs.h"
  11
  12 /* Default default keys */
  13 static uint8_t hns3_hash_key[] = {
  14         0x6D, 0x5A, 0x56, 0xDA, 0x25, 0x5B, 0x0E, 0xC2,
  15         0x41, 0x67, 0x25, 0x3D, 0x43, 0xA3, 0x8F, 0xB0,
  16         0xD0, 0xCA, 0x2B, 0xCB, 0xAE, 0x7B, 0x30, 0xB4,
  17         0x77, 0xCB, 0x2D, 0xA3, 0x80, 0x30, 0xF2, 0x0C,
  18         0x6A, 0x42, 0xB7, 0x3B, 0xBE, 0xAC, 0x01, 0xFA
  19 };
  20
  21 static const uint8_t full_mask[VNI_OR_TNI_LEN] = { 0xFF, 0xFF, 0xFF };
  22 static const uint8_t zero_mask[VNI_OR_TNI_LEN] = { 0x00, 0x00, 0x00 };
  23
  24 /* Special Filter id for non-specific packet flagging. Don't change value */
  25 #define HNS3_MAX_FILTER_ID      0x0FFF
  26
  27 #define ETHER_TYPE_MASK         0xFFFF
  28 #define IPPROTO_MASK            0xFF
  29 #define TUNNEL_TYPE_MASK        0xFFFF
  30
  31 #define HNS3_TUNNEL_TYPE_VXLAN          0x12B5
  32 #define HNS3_TUNNEL_TYPE_VXLAN_GPE      0x12B6
  33 #define HNS3_TUNNEL_TYPE_GENEVE         0x17C1
  34 #define HNS3_TUNNEL_TYPE_NVGRE          0x6558
  35
  36 static enum rte_flow_item_type first_items[] = {
  37         RTE_FLOW_ITEM_TYPE_ETH,
  38         RTE_FLOW_ITEM_TYPE_IPV4,
  39         RTE_FLOW_ITEM_TYPE_IPV6,
  40         RTE_FLOW_ITEM_TYPE_TCP,
  41         RTE_FLOW_ITEM_TYPE_UDP,
  42         RTE_FLOW_ITEM_TYPE_SCTP,
  43         RTE_FLOW_ITEM_TYPE_ICMP,
  44         RTE_FLOW_ITEM_TYPE_NVGRE,
  45         RTE_FLOW_ITEM_TYPE_VXLAN,
  46         RTE_FLOW_ITEM_TYPE_GENEVE,
  47         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  48         RTE_FLOW_ITEM_TYPE_MPLS
  49 };
  50
  51 static enum rte_flow_item_type L2_next_items[] = {
  52         RTE_FLOW_ITEM_TYPE_VLAN,
  53         RTE_FLOW_ITEM_TYPE_IPV4,
  54         RTE_FLOW_ITEM_TYPE_IPV6
  55 };
  56
  57 static enum rte_flow_item_type L3_next_items[] = {
  58         RTE_FLOW_ITEM_TYPE_TCP,
  59         RTE_FLOW_ITEM_TYPE_UDP,
  60         RTE_FLOW_ITEM_TYPE_SCTP,
  61         RTE_FLOW_ITEM_TYPE_NVGRE,
  62         RTE_FLOW_ITEM_TYPE_ICMP
  63 };
  64
  65 static enum rte_flow_item_type L4_next_items[] = {
  66         RTE_FLOW_ITEM_TYPE_VXLAN,
  67         RTE_FLOW_ITEM_TYPE_GENEVE,
  68         RTE_FLOW_ITEM_TYPE_VXLAN_GPE,
  69         RTE_FLOW_ITEM_TYPE_MPLS
  70 };
  71
  72 static enum rte_flow_item_type tunnel_next_items[] = {
  73         RTE_FLOW_ITEM_TYPE_ETH,
  74         RTE_FLOW_ITEM_TYPE_VLAN
  75 };
  76
  77 struct items_step_mngr {
  78         enum rte_flow_item_type *items;
  79         int count;
  80 };
  81
  82 static inline void
  83 net_addr_to_host(uint32_t *dst, const rte_be32_t *src, size_t len)
  84 {
  85         size_t i;
  86
  87         for (i = 0; i < len; i++)
  88                 dst[i] = rte_be_to_cpu_32(src[i]);
  89 }
  90
  91 /*
  92  * This function is used to find rss general action.
  93  * 1. As we know RSS is used to spread packets among several queues, the flow
  94  *    API provide the struct rte_flow_action_rss, user could config it's field
  95  *    sush as: func/level/types/key/queue to control RSS function.
  96  * 2. The flow API also support queue region configuration for hns3. It was
  97  *    implemented by FDIR + RSS in hns3 hardware, user can create one FDIR rule
  98  *    which action is RSS queues region.
  99  * 3. When action is RSS, we use the following rule to distinguish:
 100  *    Case 1: pattern have ETH and action's queue_num > 0, indicate it is queue
 101  *            region configuration.
 102  *    Case other: an rss general action.
 103  */
 104 static const struct rte_flow_action *
 105 hns3_find_rss_general_action(const struct rte_flow_item pattern[],
 106                              const struct rte_flow_action actions[])
 107 {
 108         const struct rte_flow_action *act = NULL;
 109         const struct hns3_rss_conf *rss;
 110         bool have_eth = false;
 111
 112         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 113                 if (actions->type == RTE_FLOW_ACTION_TYPE_RSS) {
 114                         act = actions;
 115                         break;
 116                 }
 117         }
 118         if (!act)
 119                 return NULL;
 120
 121         for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
 122                 if (pattern->type == RTE_FLOW_ITEM_TYPE_ETH) {
 123                         have_eth = true;
 124                         break;
 125                 }
 126         }
 127
 128         rss = act->conf;
 129         if (have_eth && rss->conf.queue_num) {
 130                 /*
 131                  * Patter have ETH and action's queue_num > 0, indicate this is
 132                  * queue region configuration.
 133                  * Because queue region is implemented by FDIR + RSS in hns3
 134                  * hardware, it need enter FDIR process, so here return NULL to
 135                  * avoid enter RSS process.
 136                  */
 137                 return NULL;
 138         }
 139
 140         return act;
 141 }
 142
 143 static inline struct hns3_flow_counter *
 144 hns3_counter_lookup(struct rte_eth_dev *dev, uint32_t id)
 145 {
 146         struct hns3_adapter *hns = dev->data->dev_private;
 147         struct hns3_pf *pf = &hns->pf;
 148         struct hns3_flow_counter *cnt;
 149
 150         LIST_FOREACH(cnt, &pf->flow_counters, next) {
 151                 if (cnt->id == id)
 152                         return cnt;
 153         }
 154         return NULL;
 155 }
 156
 157 static int
 158 hns3_counter_new(struct rte_eth_dev *dev, uint32_t shared, uint32_t id,
 159                  struct rte_flow_error *error)
 160 {
 161         struct hns3_adapter *hns = dev->data->dev_private;
 162         struct hns3_pf *pf = &hns->pf;
 163         struct hns3_flow_counter *cnt;
 164
 165         cnt = hns3_counter_lookup(dev, id);
 166         if (cnt) {
 167                 if (!cnt->shared || cnt->shared != shared)
 168                         return rte_flow_error_set(error, ENOTSUP,
 169                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 170                                 cnt,
 171                                 "Counter id is used, shared flag not match");
 172                 cnt->ref_cnt++;
 173                 return 0;
 174         }
 175
 176         cnt = rte_zmalloc("hns3 counter", sizeof(*cnt), 0);
 177         if (cnt == NULL)
 178                 return rte_flow_error_set(error, ENOMEM,
 179                                           RTE_FLOW_ERROR_TYPE_HANDLE, cnt,
 180                                           "Alloc mem for counter failed");
 181         cnt->id = id;
 182         cnt->shared = shared;
 183         cnt->ref_cnt = 1;
 184         cnt->hits = 0;
 185         LIST_INSERT_HEAD(&pf->flow_counters, cnt, next);
 186         return 0;
 187 }
 188
 189 static int
 190 hns3_counter_query(struct rte_eth_dev *dev, struct rte_flow *flow,
 191                    struct rte_flow_query_count *qc,
 192                    struct rte_flow_error *error)
 193 {
 194         struct hns3_adapter *hns = dev->data->dev_private;
 195         struct hns3_flow_counter *cnt;
 196         uint64_t value;
 197         int ret;
 198
 199         /* FDIR is available only in PF driver */
 200         if (hns->is_vf)
 201                 return rte_flow_error_set(error, ENOTSUP,
 202                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 203                                           "Fdir is not supported in VF");
 204         cnt = hns3_counter_lookup(dev, flow->counter_id);
 205         if (cnt == NULL)
 206                 return rte_flow_error_set(error, EINVAL,
 207                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
 208                                           "Can't find counter id");
 209
 210         ret = hns3_get_count(&hns->hw, flow->counter_id, &value);
 211         if (ret) {
 212                 rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE,
 213                                    NULL, "Read counter fail.");
 214                 return ret;
 215         }
 216         qc->hits_set = 1;
 217         qc->hits = value;
 218
 219         return 0;
 220 }
 221
 222 static int
 223 hns3_counter_release(struct rte_eth_dev *dev, uint32_t id)
 224 {
 225         struct hns3_adapter *hns = dev->data->dev_private;
 226         struct hns3_hw *hw = &hns->hw;
 227         struct hns3_flow_counter *cnt;
 228
 229         cnt = hns3_counter_lookup(dev, id);
 230         if (cnt == NULL) {
 231                 hns3_err(hw, "Can't find available counter to release");
 232                 return -EINVAL;
 233         }
 234         cnt->ref_cnt--;
 235         if (cnt->ref_cnt == 0) {
 236                 LIST_REMOVE(cnt, next);
 237                 rte_free(cnt);
 238         }
 239         return 0;
 240 }
 241
 242 static void
 243 hns3_counter_flush(struct rte_eth_dev *dev)
 244 {
 245         struct hns3_adapter *hns = dev->data->dev_private;
 246         struct hns3_pf *pf = &hns->pf;
 247         struct hns3_flow_counter *cnt_ptr;
 248
 249         cnt_ptr = LIST_FIRST(&pf->flow_counters);
 250         while (cnt_ptr) {
 251                 LIST_REMOVE(cnt_ptr, next);
 252                 rte_free(cnt_ptr);
 253                 cnt_ptr = LIST_FIRST(&pf->flow_counters);
 254         }
 255 }
 256
 257 static int
 258 hns3_handle_action_queue(struct rte_eth_dev *dev,
 259                          const struct rte_flow_action *action,
 260                          struct hns3_fdir_rule *rule,
 261                          struct rte_flow_error *error)
 262 {
 263         struct hns3_adapter *hns = dev->data->dev_private;
 264         const struct rte_flow_action_queue *queue;
 265         struct hns3_hw *hw = &hns->hw;
 266
 267         queue = (const struct rte_flow_action_queue *)action->conf;
 268         if (queue->index >= hw->used_rx_queues) {
 269                 hns3_err(hw, "queue ID(%u) is greater than number of "
 270                           "available queue (%u) in driver.",
 271                           queue->index, hw->used_rx_queues);
 272                 return rte_flow_error_set(error, EINVAL,
 273                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 274                                           action, "Invalid queue ID in PF");
 275         }
 276
 277         rule->queue_id = queue->index;
 278         rule->nb_queues = 1;
 279         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 280         return 0;
 281 }
 282
 283 static int
 284 hns3_handle_action_queue_region(struct rte_eth_dev *dev,
 285                                 const struct rte_flow_action *action,
 286                                 struct hns3_fdir_rule *rule,
 287                                 struct rte_flow_error *error)
 288 {
 289         struct hns3_adapter *hns = dev->data->dev_private;
 290         const struct rte_flow_action_rss *conf = action->conf;
 291         struct hns3_hw *hw = &hns->hw;
 292         uint16_t idx;
 293
 294         if (!hns3_dev_fd_queue_region_supported(hw))
 295                 return rte_flow_error_set(error, ENOTSUP,
 296                         RTE_FLOW_ERROR_TYPE_ACTION, action,
 297                         "Not support config queue region!");
 298
 299         if ((!rte_is_power_of_2(conf->queue_num)) ||
 300                 conf->queue_num > hw->rss_size_max ||
 301                 conf->queue[0] >= hw->used_rx_queues ||
 302                 conf->queue[0] + conf->queue_num > hw->used_rx_queues) {
 303                 return rte_flow_error_set(error, EINVAL,
 304                         RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 305                         "Invalid start queue ID and queue num! the start queue "
 306                         "ID must valid, the queue num must be power of 2 and "
 307                         "<= rss_size_max.");
 308         }
 309
 310         for (idx = 1; idx < conf->queue_num; idx++) {
 311                 if (conf->queue[idx] != conf->queue[idx - 1] + 1)
 312                         return rte_flow_error_set(error, EINVAL,
 313                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF, action,
 314                                 "Invalid queue ID sequence! the queue ID "
 315                                 "must be continuous increment.");
 316         }
 317
 318         rule->queue_id = conf->queue[0];
 319         rule->nb_queues = conf->queue_num;
 320         rule->action = HNS3_FD_ACTION_ACCEPT_PACKET;
 321         return 0;
 322 }
 323
 324 /*
 325  * Parse actions structure from the provided pattern.
 326  * The pattern is validated as the items are copied.
 327  *
 328  * @param actions[in]
 329  * @param rule[out]
 330  *   NIC specfilc actions derived from the actions.
 331  * @param error[out]
 332  */
 333 static int
 334 hns3_handle_actions(struct rte_eth_dev *dev,
 335                     const struct rte_flow_action actions[],
 336                     struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 337 {
 338         struct hns3_adapter *hns = dev->data->dev_private;
 339         const struct rte_flow_action_count *act_count;
 340         const struct rte_flow_action_mark *mark;
 341         struct hns3_pf *pf = &hns->pf;
 342         uint32_t counter_num;
 343         int ret;
 344
 345         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
 346                 switch (actions->type) {
 347                 case RTE_FLOW_ACTION_TYPE_QUEUE:
 348                         ret = hns3_handle_action_queue(dev, actions, rule,
 349                                                        error);
 350                         if (ret)
 351                                 return ret;
 352                         break;
 353                 case RTE_FLOW_ACTION_TYPE_DROP:
 354                         rule->action = HNS3_FD_ACTION_DROP_PACKET;
 355                         break;
 356                 /*
 357                  * Here RSS's real action is queue region.
 358                  * Queue region is implemented by FDIR + RSS in hns3 hardware,
 359                  * the FDIR's action is one queue region (start_queue_id and
 360                  * queue_num), then RSS spread packets to the queue region by
 361                  * RSS algorigthm.
 362                  */
 363                 case RTE_FLOW_ACTION_TYPE_RSS:
 364                         ret = hns3_handle_action_queue_region(dev, actions,
 365                                                               rule, error);
 366                         if (ret)
 367                                 return ret;
 368                         break;
 369                 case RTE_FLOW_ACTION_TYPE_MARK:
 370                         mark =
 371                             (const struct rte_flow_action_mark *)actions->conf;
 372                         if (mark->id >= HNS3_MAX_FILTER_ID)
 373                                 return rte_flow_error_set(error, EINVAL,
 374                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 375                                                 actions,
 376                                                 "Invalid Mark ID");
 377                         rule->fd_id = mark->id;
 378                         rule->flags |= HNS3_RULE_FLAG_FDID;
 379                         break;
 380                 case RTE_FLOW_ACTION_TYPE_FLAG:
 381                         rule->fd_id = HNS3_MAX_FILTER_ID;
 382                         rule->flags |= HNS3_RULE_FLAG_FDID;
 383                         break;
 384                 case RTE_FLOW_ACTION_TYPE_COUNT:
 385                         act_count =
 386                             (const struct rte_flow_action_count *)actions->conf;
 387                         counter_num = pf->fdir.fd_cfg.cnt_num[HNS3_FD_STAGE_1];
 388                         if (act_count->id >= counter_num)
 389                                 return rte_flow_error_set(error, EINVAL,
 390                                                 RTE_FLOW_ERROR_TYPE_ACTION_CONF,
 391                                                 actions,
 392                                                 "Invalid counter id");
 393                         rule->act_cnt = *act_count;
 394                         rule->flags |= HNS3_RULE_FLAG_COUNTER;
 395                         break;
 396                 case RTE_FLOW_ACTION_TYPE_VOID:
 397                         break;
 398                 default:
 399                         return rte_flow_error_set(error, ENOTSUP,
 400                                                   RTE_FLOW_ERROR_TYPE_ACTION,
 401                                                   NULL, "Unsupported action");
 402                 }
 403         }
 404
 405         return 0;
 406 }
 407
 408 /* Parse to get the attr and action info of flow director rule. */
 409 static int
 410 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 411 {
 412         if (!attr->ingress)
 413                 return rte_flow_error_set(error, EINVAL,
 414                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 415                                           attr, "Ingress can't be zero");
 416         if (attr->egress)
 417                 return rte_flow_error_set(error, ENOTSUP,
 418                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 419                                           attr, "Not support egress");
 420         if (attr->transfer)
 421                 return rte_flow_error_set(error, ENOTSUP,
 422                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 423                                           attr, "No support for transfer");
 424         if (attr->priority)
 425                 return rte_flow_error_set(error, ENOTSUP,
 426                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 427                                           attr, "Not support priority");
 428         if (attr->group)
 429                 return rte_flow_error_set(error, ENOTSUP,
 430                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 431                                           attr, "Not support group");
 432         return 0;
 433 }
 434
 435 static int
 436 hns3_parse_eth(const struct rte_flow_item *item,
 437                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 438 {
 439         const struct rte_flow_item_eth *eth_spec;
 440         const struct rte_flow_item_eth *eth_mask;
 441
 442         if (item->spec == NULL && item->mask)
 443                 return rte_flow_error_set(error, EINVAL,
 444                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 445                                           "Can't configure FDIR with mask but without spec");
 446
 447         /* Only used to describe the protocol stack. */
 448         if (item->spec == NULL && item->mask == NULL)
 449                 return 0;
 450
 451         if (item->mask) {
 452                 eth_mask = item->mask;
 453                 if (eth_mask->type) {
 454                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 455                         rule->key_conf.mask.ether_type =
 456                             rte_be_to_cpu_16(eth_mask->type);
 457                 }
 458                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 459                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 460                         memcpy(rule->key_conf.mask.src_mac,
 461                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 462                 }
 463                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 464                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 465                         memcpy(rule->key_conf.mask.dst_mac,
 466                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 467                 }
 468         }
 469
 470         eth_spec = item->spec;
 471         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 472         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 473                RTE_ETHER_ADDR_LEN);
 474         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 475                RTE_ETHER_ADDR_LEN);
 476         return 0;
 477 }
 478
 479 static int
 480 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 481                 struct rte_flow_error *error)
 482 {
 483         const struct rte_flow_item_vlan *vlan_spec;
 484         const struct rte_flow_item_vlan *vlan_mask;
 485
 486         if (item->spec == NULL && item->mask)
 487                 return rte_flow_error_set(error, EINVAL,
 488                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 489                                           "Can't configure FDIR with mask but without spec");
 490
 491         rule->key_conf.vlan_num++;
 492         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 493                 return rte_flow_error_set(error, EINVAL,
 494                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 495                                           "Vlan_num is more than 2");
 496
 497         /* Only used to describe the protocol stack. */
 498         if (item->spec == NULL && item->mask == NULL)
 499                 return 0;
 500
 501         if (item->mask) {
 502                 vlan_mask = item->mask;
 503                 if (vlan_mask->tci) {
 504                         if (rule->key_conf.vlan_num == 1) {
 505                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 506                                              1);
 507                                 rule->key_conf.mask.vlan_tag1 =
 508                                     rte_be_to_cpu_16(vlan_mask->tci);
 509                         } else {
 510                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 511                                              1);
 512                                 rule->key_conf.mask.vlan_tag2 =
 513                                     rte_be_to_cpu_16(vlan_mask->tci);
 514                         }
 515                 }
 516         }
 517
 518         vlan_spec = item->spec;
 519         if (rule->key_conf.vlan_num == 1)
 520                 rule->key_conf.spec.vlan_tag1 =
 521                     rte_be_to_cpu_16(vlan_spec->tci);
 522         else
 523                 rule->key_conf.spec.vlan_tag2 =
 524                     rte_be_to_cpu_16(vlan_spec->tci);
 525         return 0;
 526 }
 527
 528 static int
 529 hns3_parse_ipv4(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 530                 struct rte_flow_error *error)
 531 {
 532         const struct rte_flow_item_ipv4 *ipv4_spec;
 533         const struct rte_flow_item_ipv4 *ipv4_mask;
 534
 535         if (item->spec == NULL && item->mask)
 536                 return rte_flow_error_set(error, EINVAL,
 537                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 538                                           "Can't configure FDIR with mask but without spec");
 539
 540         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 541         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 542         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 543         /* Only used to describe the protocol stack. */
 544         if (item->spec == NULL && item->mask == NULL)
 545                 return 0;
 546
 547         if (item->mask) {
 548                 ipv4_mask = item->mask;
 549                 if (ipv4_mask->hdr.total_length ||
 550                     ipv4_mask->hdr.packet_id ||
 551                     ipv4_mask->hdr.fragment_offset ||
 552                     ipv4_mask->hdr.time_to_live ||
 553                     ipv4_mask->hdr.hdr_checksum) {
 554                         return rte_flow_error_set(error, EINVAL,
 555                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 556                                                   item,
 557                                                   "Only support src & dst ip,tos,proto in IPV4");
 558                 }
 559
 560                 if (ipv4_mask->hdr.src_addr) {
 561                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 562                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 563                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 564                 }
 565
 566                 if (ipv4_mask->hdr.dst_addr) {
 567                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 568                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 569                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 570                 }
 571
 572                 if (ipv4_mask->hdr.type_of_service) {
 573                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 574                         rule->key_conf.mask.ip_tos =
 575                             ipv4_mask->hdr.type_of_service;
 576                 }
 577
 578                 if (ipv4_mask->hdr.next_proto_id) {
 579                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 580                         rule->key_conf.mask.ip_proto =
 581                             ipv4_mask->hdr.next_proto_id;
 582                 }
 583         }
 584
 585         ipv4_spec = item->spec;
 586         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 587             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 588         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 589             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 590         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 591         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 592         return 0;
 593 }
 594
 595 static int
 596 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 597                 struct rte_flow_error *error)
 598 {
 599         const struct rte_flow_item_ipv6 *ipv6_spec;
 600         const struct rte_flow_item_ipv6 *ipv6_mask;
 601
 602         if (item->spec == NULL && item->mask)
 603                 return rte_flow_error_set(error, EINVAL,
 604                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 605                                           "Can't configure FDIR with mask but without spec");
 606
 607         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 608         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 609         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 610
 611         /* Only used to describe the protocol stack. */
 612         if (item->spec == NULL && item->mask == NULL)
 613                 return 0;
 614
 615         if (item->mask) {
 616                 ipv6_mask = item->mask;
 617                 if (ipv6_mask->hdr.vtc_flow || ipv6_mask->hdr.payload_len ||
 618                     ipv6_mask->hdr.hop_limits) {
 619                         return rte_flow_error_set(error, EINVAL,
 620                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 621                                                   item,
 622                                                   "Only support src & dst ip,proto in IPV6");
 623                 }
 624                 net_addr_to_host(rule->key_conf.mask.src_ip,
 625                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 626                                  IP_ADDR_LEN);
 627                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 628                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 629                                  IP_ADDR_LEN);
 630                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 631                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 632                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 633                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 634                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 635                 if (ipv6_mask->hdr.proto)
 636                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 637         }
 638
 639         ipv6_spec = item->spec;
 640         net_addr_to_host(rule->key_conf.spec.src_ip,
 641                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 642                          IP_ADDR_LEN);
 643         net_addr_to_host(rule->key_conf.spec.dst_ip,
 644                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 645                          IP_ADDR_LEN);
 646         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 647
 648         return 0;
 649 }
 650
 651 static int
 652 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 653                struct rte_flow_error *error)
 654 {
 655         const struct rte_flow_item_tcp *tcp_spec;
 656         const struct rte_flow_item_tcp *tcp_mask;
 657
 658         if (item->spec == NULL && item->mask)
 659                 return rte_flow_error_set(error, EINVAL,
 660                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 661                                           "Can't configure FDIR with mask but without spec");
 662
 663         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 664         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 665         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 666
 667         /* Only used to describe the protocol stack. */
 668         if (item->spec == NULL && item->mask == NULL)
 669                 return 0;
 670
 671         if (item->mask) {
 672                 tcp_mask = item->mask;
 673                 if (tcp_mask->hdr.sent_seq || tcp_mask->hdr.recv_ack ||
 674                     tcp_mask->hdr.data_off || tcp_mask->hdr.tcp_flags ||
 675                     tcp_mask->hdr.rx_win || tcp_mask->hdr.cksum ||
 676                     tcp_mask->hdr.tcp_urp) {
 677                         return rte_flow_error_set(error, EINVAL,
 678                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 679                                                   item,
 680                                                   "Only support src & dst port in TCP");
 681                 }
 682
 683                 if (tcp_mask->hdr.src_port) {
 684                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 685                         rule->key_conf.mask.src_port =
 686                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 687                 }
 688                 if (tcp_mask->hdr.dst_port) {
 689                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 690                         rule->key_conf.mask.dst_port =
 691                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 692                 }
 693         }
 694
 695         tcp_spec = item->spec;
 696         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 697         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 698
 699         return 0;
 700 }
 701
 702 static int
 703 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 704                struct rte_flow_error *error)
 705 {
 706         const struct rte_flow_item_udp *udp_spec;
 707         const struct rte_flow_item_udp *udp_mask;
 708
 709         if (item->spec == NULL && item->mask)
 710                 return rte_flow_error_set(error, EINVAL,
 711                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 712                                           "Can't configure FDIR with mask but without spec");
 713
 714         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 715         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 716         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 717         /* Only used to describe the protocol stack. */
 718         if (item->spec == NULL && item->mask == NULL)
 719                 return 0;
 720
 721         if (item->mask) {
 722                 udp_mask = item->mask;
 723                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 724                         return rte_flow_error_set(error, EINVAL,
 725                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 726                                                   item,
 727                                                   "Only support src & dst port in UDP");
 728                 }
 729                 if (udp_mask->hdr.src_port) {
 730                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 731                         rule->key_conf.mask.src_port =
 732                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 733                 }
 734                 if (udp_mask->hdr.dst_port) {
 735                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 736                         rule->key_conf.mask.dst_port =
 737                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 738                 }
 739         }
 740
 741         udp_spec = item->spec;
 742         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 743         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 744
 745         return 0;
 746 }
 747
 748 static int
 749 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 750                 struct rte_flow_error *error)
 751 {
 752         const struct rte_flow_item_sctp *sctp_spec;
 753         const struct rte_flow_item_sctp *sctp_mask;
 754
 755         if (item->spec == NULL && item->mask)
 756                 return rte_flow_error_set(error, EINVAL,
 757                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 758                                           "Can't configure FDIR with mask but without spec");
 759
 760         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 761         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 762         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 763
 764         /* Only used to describe the protocol stack. */
 765         if (item->spec == NULL && item->mask == NULL)
 766                 return 0;
 767
 768         if (item->mask) {
 769                 sctp_mask = item->mask;
 770                 if (sctp_mask->hdr.cksum)
 771                         return rte_flow_error_set(error, EINVAL,
 772                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 773                                                   item,
 774                                                   "Only support src & dst port in SCTP");
 775                 if (sctp_mask->hdr.src_port) {
 776                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 777                         rule->key_conf.mask.src_port =
 778                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 779                 }
 780                 if (sctp_mask->hdr.dst_port) {
 781                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 782                         rule->key_conf.mask.dst_port =
 783                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 784                 }
 785                 if (sctp_mask->hdr.tag) {
 786                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 787                         rule->key_conf.mask.sctp_tag =
 788                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 789                 }
 790         }
 791
 792         sctp_spec = item->spec;
 793         rule->key_conf.spec.src_port =
 794             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 795         rule->key_conf.spec.dst_port =
 796             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 797         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 798
 799         return 0;
 800 }
 801
 802 /*
 803  * Check items before tunnel, save inner configs to outer configs,and clear
 804  * inner configs.
 805  * The key consists of two parts: meta_data and tuple keys.
 806  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 807  * packet(1bit).
 808  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 809  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 810  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 811  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 812  * Vlantag2(16bit) and sctp-tag(32bit).
 813  */
 814 static int
 815 hns3_handle_tunnel(const struct rte_flow_item *item,
 816                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 817 {
 818         /* check eth config */
 819         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 820                 return rte_flow_error_set(error, EINVAL,
 821                                           RTE_FLOW_ERROR_TYPE_ITEM,
 822                                           item, "Outer eth mac is unsupported");
 823         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 824                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 825                 rule->key_conf.spec.outer_ether_type =
 826                     rule->key_conf.spec.ether_type;
 827                 rule->key_conf.mask.outer_ether_type =
 828                     rule->key_conf.mask.ether_type;
 829                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 830                 rule->key_conf.spec.ether_type = 0;
 831                 rule->key_conf.mask.ether_type = 0;
 832         }
 833
 834         /* check vlan config */
 835         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 836                 return rte_flow_error_set(error, EINVAL,
 837                                           RTE_FLOW_ERROR_TYPE_ITEM,
 838                                           item,
 839                                           "Outer vlan tags is unsupported");
 840
 841         /* clear vlan_num for inner vlan select */
 842         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 843         rule->key_conf.vlan_num = 0;
 844
 845         /* check L3 config */
 846         if (rule->input_set &
 847             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 848                 return rte_flow_error_set(error, EINVAL,
 849                                           RTE_FLOW_ERROR_TYPE_ITEM,
 850                                           item, "Outer ip is unsupported");
 851         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 852                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 853                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 854                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 855                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 856                 rule->key_conf.spec.ip_proto = 0;
 857                 rule->key_conf.mask.ip_proto = 0;
 858         }
 859
 860         /* check L4 config */
 861         if (rule->input_set & BIT(INNER_SCTP_TAG))
 862                 return rte_flow_error_set(error, EINVAL,
 863                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 864                                           "Outer sctp tag is unsupported");
 865
 866         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 867                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 868                 rule->key_conf.spec.outer_src_port =
 869                     rule->key_conf.spec.src_port;
 870                 rule->key_conf.mask.outer_src_port =
 871                     rule->key_conf.mask.src_port;
 872                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 873                 rule->key_conf.spec.src_port = 0;
 874                 rule->key_conf.mask.src_port = 0;
 875         }
 876         if (rule->input_set & BIT(INNER_DST_PORT)) {
 877                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 878                 rule->key_conf.spec.dst_port = 0;
 879                 rule->key_conf.mask.dst_port = 0;
 880         }
 881         return 0;
 882 }
 883
 884 static int
 885 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 886                  struct rte_flow_error *error)
 887 {
 888         const struct rte_flow_item_vxlan *vxlan_spec;
 889         const struct rte_flow_item_vxlan *vxlan_mask;
 890
 891         if (item->spec == NULL && item->mask)
 892                 return rte_flow_error_set(error, EINVAL,
 893                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 894                                           "Can't configure FDIR with mask but without spec");
 895         else if (item->spec && (item->mask == NULL))
 896                 return rte_flow_error_set(error, EINVAL,
 897                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 898                                           "Tunnel packets must configure with mask");
 899
 900         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 901         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 902         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 903                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 904         else
 905                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 906
 907         /* Only used to describe the protocol stack. */
 908         if (item->spec == NULL && item->mask == NULL)
 909                 return 0;
 910
 911         vxlan_mask = item->mask;
 912         vxlan_spec = item->spec;
 913
 914         if (vxlan_mask->flags)
 915                 return rte_flow_error_set(error, EINVAL,
 916                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 917                                           "Flags is not supported in VxLAN");
 918
 919         /* VNI must be totally masked or not. */
 920         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 921             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 922                 return rte_flow_error_set(error, EINVAL,
 923                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 924                                           "VNI must be totally masked or not in VxLAN");
 925         if (vxlan_mask->vni[0]) {
 926                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 927                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 928                            VNI_OR_TNI_LEN);
 929         }
 930         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 931                    VNI_OR_TNI_LEN);
 932         return 0;
 933 }
 934
 935 static int
 936 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 937                  struct rte_flow_error *error)
 938 {
 939         const struct rte_flow_item_nvgre *nvgre_spec;
 940         const struct rte_flow_item_nvgre *nvgre_mask;
 941
 942         if (item->spec == NULL && item->mask)
 943                 return rte_flow_error_set(error, EINVAL,
 944                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 945                                           "Can't configure FDIR with mask but without spec");
 946         else if (item->spec && (item->mask == NULL))
 947                 return rte_flow_error_set(error, EINVAL,
 948                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 949                                           "Tunnel packets must configure with mask");
 950
 951         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 952         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 953         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 954
 955         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 956         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 957         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 958         /* Only used to describe the protocol stack. */
 959         if (item->spec == NULL && item->mask == NULL)
 960                 return 0;
 961
 962         nvgre_mask = item->mask;
 963         nvgre_spec = item->spec;
 964
 965         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 966                 return rte_flow_error_set(error, EINVAL,
 967                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 968                                           "Ver/protocal is not supported in NVGRE");
 969
 970         /* TNI must be totally masked or not. */
 971         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 972             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 973                 return rte_flow_error_set(error, EINVAL,
 974                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 975                                           "TNI must be totally masked or not in NVGRE");
 976
 977         if (nvgre_mask->tni[0]) {
 978                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 979                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 980                            VNI_OR_TNI_LEN);
 981         }
 982         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 983                    VNI_OR_TNI_LEN);
 984
 985         if (nvgre_mask->flow_id) {
 986                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 987                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 988         }
 989         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 990         return 0;
 991 }
 992
 993 static int
 994 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 995                   struct rte_flow_error *error)
 996 {
 997         const struct rte_flow_item_geneve *geneve_spec;
 998         const struct rte_flow_item_geneve *geneve_mask;
 999
1000         if (item->spec == NULL && item->mask)
1001                 return rte_flow_error_set(error, EINVAL,
1002                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1003                                           "Can't configure FDIR with mask but without spec");
1004         else if (item->spec && (item->mask == NULL))
1005                 return rte_flow_error_set(error, EINVAL,
1006                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1007                                           "Tunnel packets must configure with mask");
1008
1009         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
1010         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
1011         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
1012         /* Only used to describe the protocol stack. */
1013         if (item->spec == NULL && item->mask == NULL)
1014                 return 0;
1015
1016         geneve_mask = item->mask;
1017         geneve_spec = item->spec;
1018
1019         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
1020                 return rte_flow_error_set(error, EINVAL,
1021                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
1022                                           "Ver/protocal is not supported in GENEVE");
1023         /* VNI must be totally masked or not. */
1024         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
1025             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
1026                 return rte_flow_error_set(error, EINVAL,
1027                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
1028                                           "VNI must be totally masked or not in GENEVE");
1029         if (geneve_mask->vni[0]) {
1030                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
1031                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
1032                            VNI_OR_TNI_LEN);
1033         }
1034         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
1035                    VNI_OR_TNI_LEN);
1036         return 0;
1037 }
1038
1039 static int
1040 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1041                   struct rte_flow_error *error)
1042 {
1043         int ret;
1044
1045         switch (item->type) {
1046         case RTE_FLOW_ITEM_TYPE_VXLAN:
1047         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1048                 ret = hns3_parse_vxlan(item, rule, error);
1049                 break;
1050         case RTE_FLOW_ITEM_TYPE_NVGRE:
1051                 ret = hns3_parse_nvgre(item, rule, error);
1052                 break;
1053         case RTE_FLOW_ITEM_TYPE_GENEVE:
1054                 ret = hns3_parse_geneve(item, rule, error);
1055                 break;
1056         default:
1057                 return rte_flow_error_set(error, ENOTSUP,
1058                                           RTE_FLOW_ERROR_TYPE_ITEM,
1059                                           NULL, "Unsupported tunnel type!");
1060         }
1061         if (ret)
1062                 return ret;
1063         return hns3_handle_tunnel(item, rule, error);
1064 }
1065
1066 static int
1067 hns3_parse_normal(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1068                   struct items_step_mngr *step_mngr,
1069                   struct rte_flow_error *error)
1070 {
1071         int ret;
1072
1073         switch (item->type) {
1074         case RTE_FLOW_ITEM_TYPE_ETH:
1075                 ret = hns3_parse_eth(item, rule, error);
1076                 step_mngr->items = L2_next_items;
1077                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1078                 break;
1079         case RTE_FLOW_ITEM_TYPE_VLAN:
1080                 ret = hns3_parse_vlan(item, rule, error);
1081                 step_mngr->items = L2_next_items;
1082                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1083                 break;
1084         case RTE_FLOW_ITEM_TYPE_IPV4:
1085                 ret = hns3_parse_ipv4(item, rule, error);
1086                 step_mngr->items = L3_next_items;
1087                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1088                 break;
1089         case RTE_FLOW_ITEM_TYPE_IPV6:
1090                 ret = hns3_parse_ipv6(item, rule, error);
1091                 step_mngr->items = L3_next_items;
1092                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1093                 break;
1094         case RTE_FLOW_ITEM_TYPE_TCP:
1095                 ret = hns3_parse_tcp(item, rule, error);
1096                 step_mngr->items = L4_next_items;
1097                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1098                 break;
1099         case RTE_FLOW_ITEM_TYPE_UDP:
1100                 ret = hns3_parse_udp(item, rule, error);
1101                 step_mngr->items = L4_next_items;
1102                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1103                 break;
1104         case RTE_FLOW_ITEM_TYPE_SCTP:
1105                 ret = hns3_parse_sctp(item, rule, error);
1106                 step_mngr->items = L4_next_items;
1107                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1108                 break;
1109         default:
1110                 return rte_flow_error_set(error, ENOTSUP,
1111                                           RTE_FLOW_ERROR_TYPE_ITEM,
1112                                           NULL, "Unsupported normal type!");
1113         }
1114
1115         return ret;
1116 }
1117
1118 static int
1119 hns3_validate_item(const struct rte_flow_item *item,
1120                    struct items_step_mngr step_mngr,
1121                    struct rte_flow_error *error)
1122 {
1123         int i;
1124
1125         if (item->last)
1126                 return rte_flow_error_set(error, ENOTSUP,
1127                                           RTE_FLOW_ERROR_TYPE_ITEM_LAST, item,
1128                                           "Not supported last point for range");
1129
1130         for (i = 0; i < step_mngr.count; i++) {
1131                 if (item->type == step_mngr.items[i])
1132                         break;
1133         }
1134
1135         if (i == step_mngr.count) {
1136                 return rte_flow_error_set(error, EINVAL,
1137                                           RTE_FLOW_ERROR_TYPE_ITEM,
1138                                           item, "Inval or missing item");
1139         }
1140         return 0;
1141 }
1142
1143 static inline bool
1144 is_tunnel_packet(enum rte_flow_item_type type)
1145 {
1146         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1147             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1148             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1149             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1150             type == RTE_FLOW_ITEM_TYPE_MPLS)
1151                 return true;
1152         return false;
1153 }
1154
1155 /*
1156  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1157  * And get the flow director filter info BTW.
1158  * UDP/TCP/SCTP PATTERN:
1159  * The first not void item can be ETH or IPV4 or IPV6
1160  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1161  * The next not void item could be UDP or TCP or SCTP (optional)
1162  * The next not void item could be RAW (for flexbyte, optional)
1163  * The next not void item must be END.
1164  * A Fuzzy Match pattern can appear at any place before END.
1165  * Fuzzy Match is optional for IPV4 but is required for IPV6
1166  * MAC VLAN PATTERN:
1167  * The first not void item must be ETH.
1168  * The second not void item must be MAC VLAN.
1169  * The next not void item must be END.
1170  * ACTION:
1171  * The first not void action should be QUEUE or DROP.
1172  * The second not void optional action should be MARK,
1173  * mark_id is a uint32_t number.
1174  * The next not void action should be END.
1175  * UDP/TCP/SCTP pattern example:
1176  * ITEM         Spec                    Mask
1177  * ETH          NULL                    NULL
1178  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1179  *              dst_addr 192.167.3.50   0xFFFFFFFF
1180  * UDP/TCP/SCTP src_port        80      0xFFFF
1181  *              dst_port        80      0xFFFF
1182  * END
1183  * MAC VLAN pattern example:
1184  * ITEM         Spec                    Mask
1185  * ETH          dst_addr
1186                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1187                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1188  * MAC VLAN     tci     0x2016          0xEFFF
1189  * END
1190  * Other members in mask and spec should set to 0x00.
1191  * Item->last should be NULL.
1192  */
1193 static int
1194 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1195                        const struct rte_flow_item pattern[],
1196                        const struct rte_flow_action actions[],
1197                        struct hns3_fdir_rule *rule,
1198                        struct rte_flow_error *error)
1199 {
1200         struct hns3_adapter *hns = dev->data->dev_private;
1201         const struct rte_flow_item *item;
1202         struct items_step_mngr step_mngr;
1203         int ret;
1204
1205         /* FDIR is available only in PF driver */
1206         if (hns->is_vf)
1207                 return rte_flow_error_set(error, ENOTSUP,
1208                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1209                                           "Fdir not supported in VF");
1210
1211         if (dev->data->dev_conf.fdir_conf.mode != RTE_FDIR_MODE_PERFECT)
1212                 return rte_flow_error_set(error, ENOTSUP,
1213                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1214                                           "fdir_conf.mode isn't perfect");
1215
1216         step_mngr.items = first_items;
1217         step_mngr.count = ARRAY_SIZE(first_items);
1218         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1219                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1220                         continue;
1221
1222                 ret = hns3_validate_item(item, step_mngr, error);
1223                 if (ret)
1224                         return ret;
1225
1226                 if (is_tunnel_packet(item->type)) {
1227                         ret = hns3_parse_tunnel(item, rule, error);
1228                         if (ret)
1229                                 return ret;
1230                         step_mngr.items = tunnel_next_items;
1231                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1232                 } else {
1233                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1234                         if (ret)
1235                                 return ret;
1236                 }
1237         }
1238
1239         return hns3_handle_actions(dev, actions, rule, error);
1240 }
1241
1242 void
1243 hns3_filterlist_init(struct rte_eth_dev *dev)
1244 {
1245         struct hns3_process_private *process_list = dev->process_private;
1246
1247         TAILQ_INIT(&process_list->fdir_list);
1248         TAILQ_INIT(&process_list->filter_rss_list);
1249         TAILQ_INIT(&process_list->flow_list);
1250 }
1251
1252 static void
1253 hns3_filterlist_flush(struct rte_eth_dev *dev)
1254 {
1255         struct hns3_process_private *process_list = dev->process_private;
1256         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1257         struct hns3_rss_conf_ele *rss_filter_ptr;
1258         struct hns3_flow_mem *flow_node;
1259
1260         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1261         while (fdir_rule_ptr) {
1262                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1263                 rte_free(fdir_rule_ptr);
1264                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1265         }
1266
1267         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1268         while (rss_filter_ptr) {
1269                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1270                              entries);
1271                 rte_free(rss_filter_ptr);
1272                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1273         }
1274
1275         flow_node = TAILQ_FIRST(&process_list->flow_list);
1276         while (flow_node) {
1277                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1278                 rte_free(flow_node->flow);
1279                 rte_free(flow_node);
1280                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1281         }
1282 }
1283
1284 static bool
1285 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1286                      const struct rte_flow_action_rss *with)
1287 {
1288         bool func_is_same;
1289
1290         /*
1291          * When user flush all RSS rule, RSS func is set invalid with
1292          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1293          * flushed, any validate RSS func is different with it before
1294          * flushed. Others, when user create an action RSS with RSS func
1295          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1296          * between continuous RSS flow.
1297          */
1298         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1299                 func_is_same = false;
1300         else
1301                 func_is_same = (with->func ? (comp->func == with->func) : true);
1302
1303         return (func_is_same &&
1304                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1305                 comp->level == with->level && comp->key_len == with->key_len &&
1306                 comp->queue_num == with->queue_num &&
1307                 !memcmp(comp->key, with->key, with->key_len) &&
1308                 !memcmp(comp->queue, with->queue,
1309                         sizeof(*with->queue) * with->queue_num));
1310 }
1311
1312 static int
1313 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1314                    const struct rte_flow_action_rss *in)
1315 {
1316         if (in->key_len > RTE_DIM(out->key) ||
1317             in->queue_num > RTE_DIM(out->queue))
1318                 return -EINVAL;
1319         if (in->key == NULL && in->key_len)
1320                 return -EINVAL;
1321         out->conf = (struct rte_flow_action_rss) {
1322                 .func = in->func,
1323                 .level = in->level,
1324                 .types = in->types,
1325                 .key_len = in->key_len,
1326                 .queue_num = in->queue_num,
1327         };
1328         out->conf.queue = memcpy(out->queue, in->queue,
1329                                 sizeof(*in->queue) * in->queue_num);
1330         if (in->key)
1331                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1332
1333         return 0;
1334 }
1335
1336 /*
1337  * This function is used to parse rss action validatation.
1338  */
1339 static int
1340 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1341                       const struct rte_flow_action *actions,
1342                       struct rte_flow_error *error)
1343 {
1344         struct hns3_adapter *hns = dev->data->dev_private;
1345         struct hns3_hw *hw = &hns->hw;
1346         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1347         const struct rte_flow_action_rss *rss;
1348         const struct rte_flow_action *act;
1349         uint32_t act_index = 0;
1350         uint16_t n;
1351
1352         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1353         rss = act->conf;
1354
1355         if (rss == NULL) {
1356                 return rte_flow_error_set(error, EINVAL,
1357                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1358                                           act, "no valid queues");
1359         }
1360
1361         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1362                 return rte_flow_error_set(error, ENOTSUP,
1363                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1364                                           "queue number configured exceeds "
1365                                           "queue buffer size driver supported");
1366
1367         for (n = 0; n < rss->queue_num; n++) {
1368                 if (rss->queue[n] < hw->alloc_rss_size)
1369                         continue;
1370                 return rte_flow_error_set(error, EINVAL,
1371                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1372                                           "queue id must be less than queue number allocated to a TC");
1373         }
1374
1375         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1376                 return rte_flow_error_set(error, EINVAL,
1377                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1378                                           act,
1379                                           "Flow types is unsupported by "
1380                                           "hns3's RSS");
1381         if (rss->func >= RTE_ETH_HASH_FUNCTION_MAX)
1382                 return rte_flow_error_set(error, ENOTSUP,
1383                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1384                                           "RSS hash func are not supported");
1385         if (rss->level)
1386                 return rte_flow_error_set(error, ENOTSUP,
1387                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1388                                           "a nonzero RSS encapsulation level is not supported");
1389         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1390                 return rte_flow_error_set(error, ENOTSUP,
1391                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1392                                           "RSS hash key must be exactly 40 bytes");
1393
1394         /*
1395          * For Kunpeng920 and Kunpeng930 NIC hardware, it is not supported to
1396          * use dst port/src port fields to RSS hash for the following packet
1397          * types.
1398          * - IPV4 FRAG | IPV4 NONFRAG | IPV6 FRAG | IPV6 NONFRAG
1399          * Besides, for Kunpeng920, The NIC hardware is not supported to use
1400          * src/dst port fields to RSS hash for IPV6 SCTP packet type.
1401          */
1402         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1403            (rss->types & ETH_RSS_IP ||
1404            (!hw->rss_info.ipv6_sctp_offload_supported &&
1405            rss->types & ETH_RSS_NONFRAG_IPV6_SCTP)))
1406                 return rte_flow_error_set(error, EINVAL,
1407                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1408                                           &rss->types,
1409                                           "input RSS types are not supported");
1410
1411         act_index++;
1412
1413         /* Check if the next not void action is END */
1414         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1415         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1416                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1417                 return rte_flow_error_set(error, EINVAL,
1418                                           RTE_FLOW_ERROR_TYPE_ACTION,
1419                                           act, "Not supported action.");
1420         }
1421
1422         return 0;
1423 }
1424
1425 static int
1426 hns3_disable_rss(struct hns3_hw *hw)
1427 {
1428         int ret;
1429
1430         /* Redirected the redirection table to queue 0 */
1431         ret = hns3_rss_reset_indir_table(hw);
1432         if (ret)
1433                 return ret;
1434
1435         /* Disable RSS */
1436         hw->rss_info.conf.types = 0;
1437         hw->rss_dis_flag = true;
1438
1439         return 0;
1440 }
1441
1442 static void
1443 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1444 {
1445         if (rss_conf->key == NULL || rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1446                 hns3_warn(hw, "Default RSS hash key to be set");
1447                 rss_conf->key = hns3_hash_key;
1448                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1449         }
1450 }
1451
1452 static int
1453 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1454                          uint8_t *hash_algo)
1455 {
1456         enum rte_eth_hash_function algo_func = *func;
1457         switch (algo_func) {
1458         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1459                 /* Keep *hash_algo as what it used to be */
1460                 algo_func = hw->rss_info.conf.func;
1461                 break;
1462         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1463                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1464                 break;
1465         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1466                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1467                 break;
1468         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1469                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1470                 break;
1471         default:
1472                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1473                          algo_func);
1474                 return -EINVAL;
1475         }
1476         *func = algo_func;
1477
1478         return 0;
1479 }
1480
1481 static int
1482 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1483 {
1484         struct hns3_rss_tuple_cfg *tuple;
1485         int ret;
1486
1487         hns3_parse_rss_key(hw, rss_config);
1488
1489         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1490                                        &hw->rss_info.hash_algo);
1491         if (ret)
1492                 return ret;
1493
1494         ret = hns3_set_rss_algo_key(hw, rss_config->key);
1495         if (ret)
1496                 return ret;
1497
1498         /* Update algorithm of hw */
1499         hw->rss_info.conf.func = rss_config->func;
1500
1501         /* Set flow type supported */
1502         tuple = &hw->rss_info.rss_tuple_sets;
1503         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1504         if (ret)
1505                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1506
1507         return ret;
1508 }
1509
1510 static int
1511 hns3_update_indir_table(struct rte_eth_dev *dev,
1512                         const struct rte_flow_action_rss *conf, uint16_t num)
1513 {
1514         struct hns3_adapter *hns = dev->data->dev_private;
1515         struct hns3_hw *hw = &hns->hw;
1516         uint16_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1517         uint16_t j;
1518         uint32_t i;
1519
1520         /* Fill in redirection table */
1521         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1522                sizeof(hw->rss_info.rss_indirection_tbl));
1523         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1524                 j %= num;
1525                 if (conf->queue[j] >= hw->alloc_rss_size) {
1526                         hns3_err(hw, "queue id(%u) set to redirection table "
1527                                  "exceeds queue number(%u) allocated to a TC.",
1528                                  conf->queue[j], hw->alloc_rss_size);
1529                         return -EINVAL;
1530                 }
1531                 indir_tbl[i] = conf->queue[j];
1532         }
1533
1534         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1535 }
1536
1537 static int
1538 hns3_config_rss_filter(struct rte_eth_dev *dev,
1539                        const struct hns3_rss_conf *conf, bool add)
1540 {
1541         struct hns3_process_private *process_list = dev->process_private;
1542         struct hns3_adapter *hns = dev->data->dev_private;
1543         struct hns3_rss_conf_ele *rss_filter_ptr;
1544         struct hns3_hw *hw = &hns->hw;
1545         struct hns3_rss_conf *rss_info;
1546         uint64_t flow_types;
1547         uint16_t num;
1548         int ret;
1549
1550         struct rte_flow_action_rss rss_flow_conf = {
1551                 .func = conf->conf.func,
1552                 .level = conf->conf.level,
1553                 .types = conf->conf.types,
1554                 .key_len = conf->conf.key_len,
1555                 .queue_num = conf->conf.queue_num,
1556                 .key = conf->conf.key_len ?
1557                     (void *)(uintptr_t)conf->conf.key : NULL,
1558                 .queue = conf->conf.queue,
1559         };
1560
1561         /* Filter the unsupported flow types */
1562         flow_types = conf->conf.types ?
1563                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1564                      hw->rss_info.conf.types;
1565         if (flow_types != rss_flow_conf.types)
1566                 hns3_warn(hw, "modified RSS types based on hardware support, "
1567                               "requested:%" PRIx64 " configured:%" PRIx64,
1568                           rss_flow_conf.types, flow_types);
1569         /* Update the useful flow types */
1570         rss_flow_conf.types = flow_types;
1571
1572         rss_info = &hw->rss_info;
1573         if (!add) {
1574                 if (!conf->valid)
1575                         return 0;
1576
1577                 ret = hns3_disable_rss(hw);
1578                 if (ret) {
1579                         hns3_err(hw, "RSS disable failed(%d)", ret);
1580                         return ret;
1581                 }
1582
1583                 if (rss_flow_conf.queue_num) {
1584                         /*
1585                          * Due the content of queue pointer have been reset to
1586                          * 0, the rss_info->conf.queue should be set NULL
1587                          */
1588                         rss_info->conf.queue = NULL;
1589                         rss_info->conf.queue_num = 0;
1590                 }
1591
1592                 /* set RSS func invalid after flushed */
1593                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1594                 return 0;
1595         }
1596
1597         /* Set rx queues to use */
1598         num = RTE_MIN(dev->data->nb_rx_queues, rss_flow_conf.queue_num);
1599         if (rss_flow_conf.queue_num > num)
1600                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1601                           rss_flow_conf.queue_num);
1602         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1603
1604         rte_spinlock_lock(&hw->lock);
1605         if (num) {
1606                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1607                 if (ret)
1608                         goto rss_config_err;
1609         }
1610
1611         /* Set hash algorithm and flow types by the user's config */
1612         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1613         if (ret)
1614                 goto rss_config_err;
1615
1616         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1617         if (ret) {
1618                 hns3_err(hw, "RSS config init fail(%d)", ret);
1619                 goto rss_config_err;
1620         }
1621
1622         /*
1623          * When create a new RSS rule, the old rule will be overlaid and set
1624          * invalid.
1625          */
1626         TAILQ_FOREACH(rss_filter_ptr, &process_list->filter_rss_list, entries)
1627                 rss_filter_ptr->filter_info.valid = false;
1628
1629 rss_config_err:
1630         rte_spinlock_unlock(&hw->lock);
1631
1632         return ret;
1633 }
1634
1635 static int
1636 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1637 {
1638         struct hns3_process_private *process_list = dev->process_private;
1639         struct hns3_adapter *hns = dev->data->dev_private;
1640         struct hns3_rss_conf_ele *rss_filter_ptr;
1641         struct hns3_hw *hw = &hns->hw;
1642         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1643         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1644         int ret = 0;
1645
1646         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1647         while (rss_filter_ptr) {
1648                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1649                              entries);
1650                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1651                                              false);
1652                 if (ret)
1653                         rss_rule_fail_cnt++;
1654                 else
1655                         rss_rule_succ_cnt++;
1656                 rte_free(rss_filter_ptr);
1657                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1658         }
1659
1660         if (rss_rule_fail_cnt) {
1661                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1662                              "fail num = %d", rss_rule_succ_cnt,
1663                              rss_rule_fail_cnt);
1664                 ret = -EIO;
1665         }
1666
1667         return ret;
1668 }
1669
1670 int
1671 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1672 {
1673         struct hns3_adapter *hns = dev->data->dev_private;
1674         struct hns3_hw *hw = &hns->hw;
1675
1676         /* When user flush all rules, it doesn't need to restore RSS rule */
1677         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1678                 return 0;
1679
1680         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1681 }
1682
1683 static int
1684 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1685                     const struct hns3_rss_conf *conf, bool add)
1686 {
1687         struct hns3_adapter *hns = dev->data->dev_private;
1688         struct hns3_hw *hw = &hns->hw;
1689         bool ret;
1690
1691         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1692         if (ret) {
1693                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1694                 return -EINVAL;
1695         }
1696
1697         return hns3_config_rss_filter(dev, conf, add);
1698 }
1699
1700 static int
1701 hns3_flow_args_check(const struct rte_flow_attr *attr,
1702                      const struct rte_flow_item pattern[],
1703                      const struct rte_flow_action actions[],
1704                      struct rte_flow_error *error)
1705 {
1706         if (pattern == NULL)
1707                 return rte_flow_error_set(error, EINVAL,
1708                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1709                                           NULL, "NULL pattern.");
1710
1711         if (actions == NULL)
1712                 return rte_flow_error_set(error, EINVAL,
1713                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1714                                           NULL, "NULL action.");
1715
1716         if (attr == NULL)
1717                 return rte_flow_error_set(error, EINVAL,
1718                                           RTE_FLOW_ERROR_TYPE_ATTR,
1719                                           NULL, "NULL attribute.");
1720
1721         return hns3_check_attr(attr, error);
1722 }
1723
1724 /*
1725  * Check if the flow rule is supported by hns3.
1726  * It only checkes the format. Don't guarantee the rule can be programmed into
1727  * the HW. Because there can be no enough room for the rule.
1728  */
1729 static int
1730 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1731                    const struct rte_flow_item pattern[],
1732                    const struct rte_flow_action actions[],
1733                    struct rte_flow_error *error)
1734 {
1735         struct hns3_fdir_rule fdir_rule;
1736         int ret;
1737
1738         ret = hns3_flow_args_check(attr, pattern, actions, error);
1739         if (ret)
1740                 return ret;
1741
1742         if (hns3_find_rss_general_action(pattern, actions))
1743                 return hns3_parse_rss_filter(dev, actions, error);
1744
1745         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1746         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1747 }
1748
1749 /*
1750  * Create or destroy a flow rule.
1751  * Theorically one rule can match more than one filters.
1752  * We will let it use the filter which it hitt first.
1753  * So, the sequence matters.
1754  */
1755 static struct rte_flow *
1756 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1757                  const struct rte_flow_item pattern[],
1758                  const struct rte_flow_action actions[],
1759                  struct rte_flow_error *error)
1760 {
1761         struct hns3_process_private *process_list = dev->process_private;
1762         struct hns3_adapter *hns = dev->data->dev_private;
1763         struct hns3_hw *hw = &hns->hw;
1764         const struct hns3_rss_conf *rss_conf;
1765         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1766         struct hns3_rss_conf_ele *rss_filter_ptr;
1767         struct hns3_flow_mem *flow_node;
1768         const struct rte_flow_action *act;
1769         struct rte_flow *flow;
1770         struct hns3_fdir_rule fdir_rule;
1771         int ret;
1772
1773         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1774         if (ret)
1775                 return NULL;
1776
1777         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1778         if (flow == NULL) {
1779                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1780                                    NULL, "Failed to allocate flow memory");
1781                 return NULL;
1782         }
1783         flow_node = rte_zmalloc("hns3 flow node",
1784                                 sizeof(struct hns3_flow_mem), 0);
1785         if (flow_node == NULL) {
1786                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1787                                    NULL, "Failed to allocate flow list memory");
1788                 rte_free(flow);
1789                 return NULL;
1790         }
1791
1792         flow_node->flow = flow;
1793         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1794
1795         act = hns3_find_rss_general_action(pattern, actions);
1796         if (act) {
1797                 rss_conf = act->conf;
1798
1799                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1800                 if (ret)
1801                         goto err;
1802
1803                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1804                                              sizeof(struct hns3_rss_conf_ele),
1805                                              0);
1806                 if (rss_filter_ptr == NULL) {
1807                         hns3_err(hw,
1808                                     "Failed to allocate hns3_rss_filter memory");
1809                         ret = -ENOMEM;
1810                         goto err;
1811                 }
1812                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1813                                    &rss_conf->conf);
1814                 rss_filter_ptr->filter_info.valid = true;
1815                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1816                                   rss_filter_ptr, entries);
1817
1818                 flow->rule = rss_filter_ptr;
1819                 flow->filter_type = RTE_ETH_FILTER_HASH;
1820                 return flow;
1821         }
1822
1823         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1824         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1825         if (ret)
1826                 goto out;
1827
1828         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1829                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1830                                        fdir_rule.act_cnt.id, error);
1831                 if (ret)
1832                         goto out;
1833
1834                 flow->counter_id = fdir_rule.act_cnt.id;
1835         }
1836         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1837         if (!ret) {
1838                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1839                                             sizeof(struct hns3_fdir_rule_ele),
1840                                             0);
1841                 if (fdir_rule_ptr == NULL) {
1842                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1843                         ret = -ENOMEM;
1844                         goto err_fdir;
1845                 }
1846
1847                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1848                         sizeof(struct hns3_fdir_rule));
1849                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1850                                   fdir_rule_ptr, entries);
1851                 flow->rule = fdir_rule_ptr;
1852                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1853
1854                 return flow;
1855         }
1856
1857 err_fdir:
1858         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1859                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1860
1861 err:
1862         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1863                            "Failed to create flow");
1864 out:
1865         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1866         rte_free(flow_node);
1867         rte_free(flow);
1868         return NULL;
1869 }
1870
1871 /* Destroy a flow rule on hns3. */
1872 static int
1873 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1874                   struct rte_flow_error *error)
1875 {
1876         struct hns3_process_private *process_list = dev->process_private;
1877         struct hns3_adapter *hns = dev->data->dev_private;
1878         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1879         struct hns3_rss_conf_ele *rss_filter_ptr;
1880         struct hns3_flow_mem *flow_node;
1881         enum rte_filter_type filter_type;
1882         struct hns3_fdir_rule fdir_rule;
1883         int ret;
1884
1885         if (flow == NULL)
1886                 return rte_flow_error_set(error, EINVAL,
1887                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1888                                           flow, "Flow is NULL");
1889         filter_type = flow->filter_type;
1890         switch (filter_type) {
1891         case RTE_ETH_FILTER_FDIR:
1892                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1893                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1894                            sizeof(struct hns3_fdir_rule));
1895
1896                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1897                 if (ret)
1898                         return rte_flow_error_set(error, EIO,
1899                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1900                                                   flow,
1901                                                   "Destroy FDIR fail.Try again");
1902                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1903                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1904                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1905                 rte_free(fdir_rule_ptr);
1906                 fdir_rule_ptr = NULL;
1907                 break;
1908         case RTE_ETH_FILTER_HASH:
1909                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1910                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1911                                              false);
1912                 if (ret)
1913                         return rte_flow_error_set(error, EIO,
1914                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1915                                                   flow,
1916                                                   "Destroy RSS fail.Try again");
1917                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1918                              entries);
1919                 rte_free(rss_filter_ptr);
1920                 rss_filter_ptr = NULL;
1921                 break;
1922         default:
1923                 return rte_flow_error_set(error, EINVAL,
1924                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1925                                           "Unsupported filter type");
1926         }
1927
1928         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1929                 if (flow_node->flow == flow) {
1930                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1931                                      entries);
1932                         rte_free(flow_node);
1933                         flow_node = NULL;
1934                         break;
1935                 }
1936         }
1937         rte_free(flow);
1938         flow = NULL;
1939
1940         return 0;
1941 }
1942
1943 /*  Destroy all flow rules associated with a port on hns3. */
1944 static int
1945 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1946 {
1947         struct hns3_adapter *hns = dev->data->dev_private;
1948         int ret;
1949
1950         /* FDIR is available only in PF driver */
1951         if (!hns->is_vf) {
1952                 ret = hns3_clear_all_fdir_filter(hns);
1953                 if (ret) {
1954                         rte_flow_error_set(error, ret,
1955                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1956                                            NULL, "Failed to flush rule");
1957                         return ret;
1958                 }
1959                 hns3_counter_flush(dev);
1960         }
1961
1962         ret = hns3_clear_rss_filter(dev);
1963         if (ret) {
1964                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1965                                    NULL, "Failed to flush rss filter");
1966                 return ret;
1967         }
1968
1969         hns3_filterlist_flush(dev);
1970
1971         return 0;
1972 }
1973
1974 /* Query an existing flow rule. */
1975 static int
1976 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1977                 const struct rte_flow_action *actions, void *data,
1978                 struct rte_flow_error *error)
1979 {
1980         struct rte_flow_action_rss *rss_conf;
1981         struct hns3_rss_conf_ele *rss_rule;
1982         struct rte_flow_query_count *qc;
1983         int ret;
1984
1985         if (!flow->rule)
1986                 return rte_flow_error_set(error, EINVAL,
1987                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
1988
1989         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1990                 switch (actions->type) {
1991                 case RTE_FLOW_ACTION_TYPE_VOID:
1992                         break;
1993                 case RTE_FLOW_ACTION_TYPE_COUNT:
1994                         qc = (struct rte_flow_query_count *)data;
1995                         ret = hns3_counter_query(dev, flow, qc, error);
1996                         if (ret)
1997                                 return ret;
1998                         break;
1999                 case RTE_FLOW_ACTION_TYPE_RSS:
2000                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
2001                                 return rte_flow_error_set(error, ENOTSUP,
2002                                         RTE_FLOW_ERROR_TYPE_ACTION,
2003                                         actions, "action is not supported");
2004                         }
2005                         rss_conf = (struct rte_flow_action_rss *)data;
2006                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
2007                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
2008                                    sizeof(struct rte_flow_action_rss));
2009                         break;
2010                 default:
2011                         return rte_flow_error_set(error, ENOTSUP,
2012                                 RTE_FLOW_ERROR_TYPE_ACTION,
2013                                 actions, "action is not supported");
2014                 }
2015         }
2016
2017         return 0;
2018 }
2019
2020 static const struct rte_flow_ops hns3_flow_ops = {
2021         .validate = hns3_flow_validate,
2022         .create = hns3_flow_create,
2023         .destroy = hns3_flow_destroy,
2024         .flush = hns3_flow_flush,
2025         .query = hns3_flow_query,
2026         .isolate = NULL,
2027 };
2028
2029 /*
2030  * The entry of flow API.
2031  * @param dev
2032  *   Pointer to Ethernet device.
2033  * @return
2034  *   0 on success, a negative errno value otherwise is set.
2035  */
2036 int
2037 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
2038                      enum rte_filter_op filter_op, void *arg)
2039 {
2040         struct hns3_hw *hw;
2041         int ret = 0;
2042
2043         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2044         switch (filter_type) {
2045         case RTE_ETH_FILTER_GENERIC:
2046                 if (filter_op != RTE_ETH_FILTER_GET)
2047                         return -EINVAL;
2048                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
2049                         return -ENODEV;
2050                 *(const void **)arg = &hns3_flow_ops;
2051                 break;
2052         default:
2053                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
2054                 ret = -EOPNOTSUPP;
2055                 break;
2056         }
2057
2058         return ret;
2059 }