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 its field
  95  *    sush as: func/level/types/key/queue to control RSS function.
  96  * 2. The flow API also supports 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                  * Pattern 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 needs to enter FDIR process, so here return NULL
 135                  * to 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 static int
 409 hns3_check_attr(const struct rte_flow_attr *attr, struct rte_flow_error *error)
 410 {
 411         if (!attr->ingress)
 412                 return rte_flow_error_set(error, EINVAL,
 413                                           RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
 414                                           attr, "Ingress can't be zero");
 415         if (attr->egress)
 416                 return rte_flow_error_set(error, ENOTSUP,
 417                                           RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
 418                                           attr, "Not support egress");
 419         if (attr->transfer)
 420                 return rte_flow_error_set(error, ENOTSUP,
 421                                           RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
 422                                           attr, "No support for transfer");
 423         if (attr->priority)
 424                 return rte_flow_error_set(error, ENOTSUP,
 425                                           RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
 426                                           attr, "Not support priority");
 427         if (attr->group)
 428                 return rte_flow_error_set(error, ENOTSUP,
 429                                           RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
 430                                           attr, "Not support group");
 431         return 0;
 432 }
 433
 434 static int
 435 hns3_parse_eth(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 436                struct rte_flow_error *error __rte_unused)
 437 {
 438         const struct rte_flow_item_eth *eth_spec;
 439         const struct rte_flow_item_eth *eth_mask;
 440
 441         /* Only used to describe the protocol stack. */
 442         if (item->spec == NULL && item->mask == NULL)
 443                 return 0;
 444
 445         if (item->mask) {
 446                 eth_mask = item->mask;
 447                 if (eth_mask->type) {
 448                         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 449                         rule->key_conf.mask.ether_type =
 450                             rte_be_to_cpu_16(eth_mask->type);
 451                 }
 452                 if (!rte_is_zero_ether_addr(&eth_mask->src)) {
 453                         hns3_set_bit(rule->input_set, INNER_SRC_MAC, 1);
 454                         memcpy(rule->key_conf.mask.src_mac,
 455                                eth_mask->src.addr_bytes, RTE_ETHER_ADDR_LEN);
 456                 }
 457                 if (!rte_is_zero_ether_addr(&eth_mask->dst)) {
 458                         hns3_set_bit(rule->input_set, INNER_DST_MAC, 1);
 459                         memcpy(rule->key_conf.mask.dst_mac,
 460                                eth_mask->dst.addr_bytes, RTE_ETHER_ADDR_LEN);
 461                 }
 462         }
 463
 464         eth_spec = item->spec;
 465         rule->key_conf.spec.ether_type = rte_be_to_cpu_16(eth_spec->type);
 466         memcpy(rule->key_conf.spec.src_mac, eth_spec->src.addr_bytes,
 467                RTE_ETHER_ADDR_LEN);
 468         memcpy(rule->key_conf.spec.dst_mac, eth_spec->dst.addr_bytes,
 469                RTE_ETHER_ADDR_LEN);
 470         return 0;
 471 }
 472
 473 static int
 474 hns3_parse_vlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 475                 struct rte_flow_error *error)
 476 {
 477         const struct rte_flow_item_vlan *vlan_spec;
 478         const struct rte_flow_item_vlan *vlan_mask;
 479
 480         rule->key_conf.vlan_num++;
 481         if (rule->key_conf.vlan_num > VLAN_TAG_NUM_MAX)
 482                 return rte_flow_error_set(error, EINVAL,
 483                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 484                                           "Vlan_num is more than 2");
 485
 486         /* Only used to describe the protocol stack. */
 487         if (item->spec == NULL && item->mask == NULL)
 488                 return 0;
 489
 490         if (item->mask) {
 491                 vlan_mask = item->mask;
 492                 if (vlan_mask->tci) {
 493                         if (rule->key_conf.vlan_num == 1) {
 494                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG1,
 495                                              1);
 496                                 rule->key_conf.mask.vlan_tag1 =
 497                                     rte_be_to_cpu_16(vlan_mask->tci);
 498                         } else {
 499                                 hns3_set_bit(rule->input_set, INNER_VLAN_TAG2,
 500                                              1);
 501                                 rule->key_conf.mask.vlan_tag2 =
 502                                     rte_be_to_cpu_16(vlan_mask->tci);
 503                         }
 504                 }
 505         }
 506
 507         vlan_spec = item->spec;
 508         if (rule->key_conf.vlan_num == 1)
 509                 rule->key_conf.spec.vlan_tag1 =
 510                     rte_be_to_cpu_16(vlan_spec->tci);
 511         else
 512                 rule->key_conf.spec.vlan_tag2 =
 513                     rte_be_to_cpu_16(vlan_spec->tci);
 514         return 0;
 515 }
 516
 517 static bool
 518 hns3_check_ipv4_mask_supported(const struct rte_flow_item_ipv4 *ipv4_mask)
 519 {
 520         if (ipv4_mask->hdr.total_length || ipv4_mask->hdr.packet_id ||
 521             ipv4_mask->hdr.fragment_offset || ipv4_mask->hdr.time_to_live ||
 522             ipv4_mask->hdr.hdr_checksum)
 523                 return false;
 524
 525         return true;
 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         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 536         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV4;
 537         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 538
 539         /* Only used to describe the protocol stack. */
 540         if (item->spec == NULL && item->mask == NULL)
 541                 return 0;
 542
 543         if (item->mask) {
 544                 ipv4_mask = item->mask;
 545                 if (!hns3_check_ipv4_mask_supported(ipv4_mask)) {
 546                         return rte_flow_error_set(error, EINVAL,
 547                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 548                                                   item,
 549                                                   "Only support src & dst ip,tos,proto in IPV4");
 550                 }
 551
 552                 if (ipv4_mask->hdr.src_addr) {
 553                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 554                         rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID] =
 555                             rte_be_to_cpu_32(ipv4_mask->hdr.src_addr);
 556                 }
 557
 558                 if (ipv4_mask->hdr.dst_addr) {
 559                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 560                         rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID] =
 561                             rte_be_to_cpu_32(ipv4_mask->hdr.dst_addr);
 562                 }
 563
 564                 if (ipv4_mask->hdr.type_of_service) {
 565                         hns3_set_bit(rule->input_set, INNER_IP_TOS, 1);
 566                         rule->key_conf.mask.ip_tos =
 567                             ipv4_mask->hdr.type_of_service;
 568                 }
 569
 570                 if (ipv4_mask->hdr.next_proto_id) {
 571                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 572                         rule->key_conf.mask.ip_proto =
 573                             ipv4_mask->hdr.next_proto_id;
 574                 }
 575         }
 576
 577         ipv4_spec = item->spec;
 578         rule->key_conf.spec.src_ip[IP_ADDR_KEY_ID] =
 579             rte_be_to_cpu_32(ipv4_spec->hdr.src_addr);
 580         rule->key_conf.spec.dst_ip[IP_ADDR_KEY_ID] =
 581             rte_be_to_cpu_32(ipv4_spec->hdr.dst_addr);
 582         rule->key_conf.spec.ip_tos = ipv4_spec->hdr.type_of_service;
 583         rule->key_conf.spec.ip_proto = ipv4_spec->hdr.next_proto_id;
 584         return 0;
 585 }
 586
 587 static int
 588 hns3_parse_ipv6(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 589                 struct rte_flow_error *error)
 590 {
 591         const struct rte_flow_item_ipv6 *ipv6_spec;
 592         const struct rte_flow_item_ipv6 *ipv6_mask;
 593
 594         hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 1);
 595         rule->key_conf.spec.ether_type = RTE_ETHER_TYPE_IPV6;
 596         rule->key_conf.mask.ether_type = ETHER_TYPE_MASK;
 597
 598         /* Only used to describe the protocol stack. */
 599         if (item->spec == NULL && item->mask == NULL)
 600                 return 0;
 601
 602         if (item->mask) {
 603                 ipv6_mask = item->mask;
 604                 if (ipv6_mask->hdr.vtc_flow || ipv6_mask->hdr.payload_len ||
 605                     ipv6_mask->hdr.hop_limits) {
 606                         return rte_flow_error_set(error, EINVAL,
 607                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 608                                                   item,
 609                                                   "Only support src & dst ip,proto in IPV6");
 610                 }
 611                 net_addr_to_host(rule->key_conf.mask.src_ip,
 612                                  (const rte_be32_t *)ipv6_mask->hdr.src_addr,
 613                                  IP_ADDR_LEN);
 614                 net_addr_to_host(rule->key_conf.mask.dst_ip,
 615                                  (const rte_be32_t *)ipv6_mask->hdr.dst_addr,
 616                                  IP_ADDR_LEN);
 617                 rule->key_conf.mask.ip_proto = ipv6_mask->hdr.proto;
 618                 if (rule->key_conf.mask.src_ip[IP_ADDR_KEY_ID])
 619                         hns3_set_bit(rule->input_set, INNER_SRC_IP, 1);
 620                 if (rule->key_conf.mask.dst_ip[IP_ADDR_KEY_ID])
 621                         hns3_set_bit(rule->input_set, INNER_DST_IP, 1);
 622                 if (ipv6_mask->hdr.proto)
 623                         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 624         }
 625
 626         ipv6_spec = item->spec;
 627         net_addr_to_host(rule->key_conf.spec.src_ip,
 628                          (const rte_be32_t *)ipv6_spec->hdr.src_addr,
 629                          IP_ADDR_LEN);
 630         net_addr_to_host(rule->key_conf.spec.dst_ip,
 631                          (const rte_be32_t *)ipv6_spec->hdr.dst_addr,
 632                          IP_ADDR_LEN);
 633         rule->key_conf.spec.ip_proto = ipv6_spec->hdr.proto;
 634
 635         return 0;
 636 }
 637
 638 static bool
 639 hns3_check_tcp_mask_supported(const struct rte_flow_item_tcp *tcp_mask)
 640 {
 641         if (tcp_mask->hdr.sent_seq || tcp_mask->hdr.recv_ack ||
 642             tcp_mask->hdr.data_off || tcp_mask->hdr.tcp_flags ||
 643             tcp_mask->hdr.rx_win || tcp_mask->hdr.cksum ||
 644             tcp_mask->hdr.tcp_urp)
 645                 return false;
 646
 647         return true;
 648 }
 649
 650 static int
 651 hns3_parse_tcp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 652                struct rte_flow_error *error)
 653 {
 654         const struct rte_flow_item_tcp *tcp_spec;
 655         const struct rte_flow_item_tcp *tcp_mask;
 656
 657         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 658         rule->key_conf.spec.ip_proto = IPPROTO_TCP;
 659         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 660
 661         /* Only used to describe the protocol stack. */
 662         if (item->spec == NULL && item->mask == NULL)
 663                 return 0;
 664
 665         if (item->mask) {
 666                 tcp_mask = item->mask;
 667                 if (!hns3_check_tcp_mask_supported(tcp_mask)) {
 668                         return rte_flow_error_set(error, EINVAL,
 669                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 670                                                   item,
 671                                                   "Only support src & dst port in TCP");
 672                 }
 673
 674                 if (tcp_mask->hdr.src_port) {
 675                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 676                         rule->key_conf.mask.src_port =
 677                             rte_be_to_cpu_16(tcp_mask->hdr.src_port);
 678                 }
 679                 if (tcp_mask->hdr.dst_port) {
 680                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 681                         rule->key_conf.mask.dst_port =
 682                             rte_be_to_cpu_16(tcp_mask->hdr.dst_port);
 683                 }
 684         }
 685
 686         tcp_spec = item->spec;
 687         rule->key_conf.spec.src_port = rte_be_to_cpu_16(tcp_spec->hdr.src_port);
 688         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(tcp_spec->hdr.dst_port);
 689
 690         return 0;
 691 }
 692
 693 static int
 694 hns3_parse_udp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 695                struct rte_flow_error *error)
 696 {
 697         const struct rte_flow_item_udp *udp_spec;
 698         const struct rte_flow_item_udp *udp_mask;
 699
 700         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 701         rule->key_conf.spec.ip_proto = IPPROTO_UDP;
 702         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 703
 704         /* Only used to describe the protocol stack. */
 705         if (item->spec == NULL && item->mask == NULL)
 706                 return 0;
 707
 708         if (item->mask) {
 709                 udp_mask = item->mask;
 710                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 711                         return rte_flow_error_set(error, EINVAL,
 712                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 713                                                   item,
 714                                                   "Only support src & dst port in UDP");
 715                 }
 716                 if (udp_mask->hdr.src_port) {
 717                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 718                         rule->key_conf.mask.src_port =
 719                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 720                 }
 721                 if (udp_mask->hdr.dst_port) {
 722                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 723                         rule->key_conf.mask.dst_port =
 724                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 725                 }
 726         }
 727
 728         udp_spec = item->spec;
 729         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 730         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 731
 732         return 0;
 733 }
 734
 735 static int
 736 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 737                 struct rte_flow_error *error)
 738 {
 739         const struct rte_flow_item_sctp *sctp_spec;
 740         const struct rte_flow_item_sctp *sctp_mask;
 741
 742         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 743         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 744         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 745
 746         /* Only used to describe the protocol stack. */
 747         if (item->spec == NULL && item->mask == NULL)
 748                 return 0;
 749
 750         if (item->mask) {
 751                 sctp_mask = item->mask;
 752                 if (sctp_mask->hdr.cksum)
 753                         return rte_flow_error_set(error, EINVAL,
 754                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 755                                                   item,
 756                                                   "Only support src & dst port in SCTP");
 757                 if (sctp_mask->hdr.src_port) {
 758                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 759                         rule->key_conf.mask.src_port =
 760                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 761                 }
 762                 if (sctp_mask->hdr.dst_port) {
 763                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 764                         rule->key_conf.mask.dst_port =
 765                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 766                 }
 767                 if (sctp_mask->hdr.tag) {
 768                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 769                         rule->key_conf.mask.sctp_tag =
 770                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 771                 }
 772         }
 773
 774         sctp_spec = item->spec;
 775         rule->key_conf.spec.src_port =
 776             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 777         rule->key_conf.spec.dst_port =
 778             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 779         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 780
 781         return 0;
 782 }
 783
 784 /*
 785  * Check items before tunnel, save inner configs to outer configs, and clear
 786  * inner configs.
 787  * The key consists of two parts: meta_data and tuple keys.
 788  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 789  * packet(1bit).
 790  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 791  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 792  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 793  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 794  * Vlantag2(16bit) and sctp-tag(32bit).
 795  */
 796 static int
 797 hns3_handle_tunnel(const struct rte_flow_item *item,
 798                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 799 {
 800         /* check eth config */
 801         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 802                 return rte_flow_error_set(error, EINVAL,
 803                                           RTE_FLOW_ERROR_TYPE_ITEM,
 804                                           item, "Outer eth mac is unsupported");
 805         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 806                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 807                 rule->key_conf.spec.outer_ether_type =
 808                     rule->key_conf.spec.ether_type;
 809                 rule->key_conf.mask.outer_ether_type =
 810                     rule->key_conf.mask.ether_type;
 811                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 812                 rule->key_conf.spec.ether_type = 0;
 813                 rule->key_conf.mask.ether_type = 0;
 814         }
 815
 816         /* check vlan config */
 817         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 818                 return rte_flow_error_set(error, EINVAL,
 819                                           RTE_FLOW_ERROR_TYPE_ITEM,
 820                                           item,
 821                                           "Outer vlan tags is unsupported");
 822
 823         /* clear vlan_num for inner vlan select */
 824         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 825         rule->key_conf.vlan_num = 0;
 826
 827         /* check L3 config */
 828         if (rule->input_set &
 829             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 830                 return rte_flow_error_set(error, EINVAL,
 831                                           RTE_FLOW_ERROR_TYPE_ITEM,
 832                                           item, "Outer ip is unsupported");
 833         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 834                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 835                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 836                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 837                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 838                 rule->key_conf.spec.ip_proto = 0;
 839                 rule->key_conf.mask.ip_proto = 0;
 840         }
 841
 842         /* check L4 config */
 843         if (rule->input_set & BIT(INNER_SCTP_TAG))
 844                 return rte_flow_error_set(error, EINVAL,
 845                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 846                                           "Outer sctp tag is unsupported");
 847
 848         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 849                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 850                 rule->key_conf.spec.outer_src_port =
 851                     rule->key_conf.spec.src_port;
 852                 rule->key_conf.mask.outer_src_port =
 853                     rule->key_conf.mask.src_port;
 854                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 855                 rule->key_conf.spec.src_port = 0;
 856                 rule->key_conf.mask.src_port = 0;
 857         }
 858         if (rule->input_set & BIT(INNER_DST_PORT)) {
 859                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 860                 rule->key_conf.spec.dst_port = 0;
 861                 rule->key_conf.mask.dst_port = 0;
 862         }
 863         return 0;
 864 }
 865
 866 static int
 867 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 868                  struct rte_flow_error *error)
 869 {
 870         const struct rte_flow_item_vxlan *vxlan_spec;
 871         const struct rte_flow_item_vxlan *vxlan_mask;
 872
 873         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 874         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 875         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 876                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 877         else
 878                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 879
 880         /* Only used to describe the protocol stack. */
 881         if (item->spec == NULL && item->mask == NULL)
 882                 return 0;
 883
 884         vxlan_mask = item->mask;
 885         vxlan_spec = item->spec;
 886
 887         if (vxlan_mask->flags)
 888                 return rte_flow_error_set(error, EINVAL,
 889                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 890                                           "Flags is not supported in VxLAN");
 891
 892         /* VNI must be totally masked or not. */
 893         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 894             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 895                 return rte_flow_error_set(error, EINVAL,
 896                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 897                                           "VNI must be totally masked or not in VxLAN");
 898         if (vxlan_mask->vni[0]) {
 899                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 900                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 901                            VNI_OR_TNI_LEN);
 902         }
 903         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 904                    VNI_OR_TNI_LEN);
 905         return 0;
 906 }
 907
 908 static int
 909 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 910                  struct rte_flow_error *error)
 911 {
 912         const struct rte_flow_item_nvgre *nvgre_spec;
 913         const struct rte_flow_item_nvgre *nvgre_mask;
 914
 915         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 916         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 917         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 918
 919         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 920         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 921         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 922         /* Only used to describe the protocol stack. */
 923         if (item->spec == NULL && item->mask == NULL)
 924                 return 0;
 925
 926         nvgre_mask = item->mask;
 927         nvgre_spec = item->spec;
 928
 929         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 930                 return rte_flow_error_set(error, EINVAL,
 931                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 932                                           "Ver/protocal is not supported in NVGRE");
 933
 934         /* TNI must be totally masked or not. */
 935         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 936             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 937                 return rte_flow_error_set(error, EINVAL,
 938                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 939                                           "TNI must be totally masked or not in NVGRE");
 940
 941         if (nvgre_mask->tni[0]) {
 942                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 943                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 944                            VNI_OR_TNI_LEN);
 945         }
 946         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 947                    VNI_OR_TNI_LEN);
 948
 949         if (nvgre_mask->flow_id) {
 950                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 951                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 952         }
 953         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 954         return 0;
 955 }
 956
 957 static int
 958 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 959                   struct rte_flow_error *error)
 960 {
 961         const struct rte_flow_item_geneve *geneve_spec;
 962         const struct rte_flow_item_geneve *geneve_mask;
 963
 964         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 965         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 966         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 967         /* Only used to describe the protocol stack. */
 968         if (item->spec == NULL && item->mask == NULL)
 969                 return 0;
 970
 971         geneve_mask = item->mask;
 972         geneve_spec = item->spec;
 973
 974         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 975                 return rte_flow_error_set(error, EINVAL,
 976                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 977                                           "Ver/protocal is not supported in GENEVE");
 978         /* VNI must be totally masked or not. */
 979         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 980             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 981                 return rte_flow_error_set(error, EINVAL,
 982                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 983                                           "VNI must be totally masked or not in GENEVE");
 984         if (geneve_mask->vni[0]) {
 985                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 986                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 987                            VNI_OR_TNI_LEN);
 988         }
 989         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
 990                    VNI_OR_TNI_LEN);
 991         return 0;
 992 }
 993
 994 static int
 995 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 996                   struct rte_flow_error *error)
 997 {
 998         int ret;
 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 "
1004                                           "but without spec");
1005         else if (item->spec && (item->mask == NULL))
1006                 return rte_flow_error_set(error, EINVAL,
1007                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1008                                           "Tunnel packets must configure "
1009                                           "with mask");
1010
1011         switch (item->type) {
1012         case RTE_FLOW_ITEM_TYPE_VXLAN:
1013         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1014                 ret = hns3_parse_vxlan(item, rule, error);
1015                 break;
1016         case RTE_FLOW_ITEM_TYPE_NVGRE:
1017                 ret = hns3_parse_nvgre(item, rule, error);
1018                 break;
1019         case RTE_FLOW_ITEM_TYPE_GENEVE:
1020                 ret = hns3_parse_geneve(item, rule, error);
1021                 break;
1022         default:
1023                 return rte_flow_error_set(error, ENOTSUP,
1024                                           RTE_FLOW_ERROR_TYPE_ITEM,
1025                                           NULL, "Unsupported tunnel type!");
1026         }
1027         if (ret)
1028                 return ret;
1029         return hns3_handle_tunnel(item, rule, error);
1030 }
1031
1032 static int
1033 hns3_parse_normal(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1034                   struct items_step_mngr *step_mngr,
1035                   struct rte_flow_error *error)
1036 {
1037         int ret;
1038
1039         if (item->spec == NULL && item->mask)
1040                 return rte_flow_error_set(error, EINVAL,
1041                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1042                                           "Can't configure FDIR with mask "
1043                                           "but without spec");
1044
1045         switch (item->type) {
1046         case RTE_FLOW_ITEM_TYPE_ETH:
1047                 ret = hns3_parse_eth(item, rule, error);
1048                 step_mngr->items = L2_next_items;
1049                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1050                 break;
1051         case RTE_FLOW_ITEM_TYPE_VLAN:
1052                 ret = hns3_parse_vlan(item, rule, error);
1053                 step_mngr->items = L2_next_items;
1054                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1055                 break;
1056         case RTE_FLOW_ITEM_TYPE_IPV4:
1057                 ret = hns3_parse_ipv4(item, rule, error);
1058                 step_mngr->items = L3_next_items;
1059                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1060                 break;
1061         case RTE_FLOW_ITEM_TYPE_IPV6:
1062                 ret = hns3_parse_ipv6(item, rule, error);
1063                 step_mngr->items = L3_next_items;
1064                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1065                 break;
1066         case RTE_FLOW_ITEM_TYPE_TCP:
1067                 ret = hns3_parse_tcp(item, rule, error);
1068                 step_mngr->items = L4_next_items;
1069                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1070                 break;
1071         case RTE_FLOW_ITEM_TYPE_UDP:
1072                 ret = hns3_parse_udp(item, rule, error);
1073                 step_mngr->items = L4_next_items;
1074                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1075                 break;
1076         case RTE_FLOW_ITEM_TYPE_SCTP:
1077                 ret = hns3_parse_sctp(item, rule, error);
1078                 step_mngr->items = L4_next_items;
1079                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1080                 break;
1081         default:
1082                 return rte_flow_error_set(error, ENOTSUP,
1083                                           RTE_FLOW_ERROR_TYPE_ITEM,
1084                                           NULL, "Unsupported normal type!");
1085         }
1086
1087         return ret;
1088 }
1089
1090 static int
1091 hns3_validate_item(const struct rte_flow_item *item,
1092                    struct items_step_mngr step_mngr,
1093                    struct rte_flow_error *error)
1094 {
1095         int i;
1096
1097         if (item->last)
1098                 return rte_flow_error_set(error, ENOTSUP,
1099                                           RTE_FLOW_ERROR_TYPE_ITEM_LAST, item,
1100                                           "Not supported last point for range");
1101
1102         for (i = 0; i < step_mngr.count; i++) {
1103                 if (item->type == step_mngr.items[i])
1104                         break;
1105         }
1106
1107         if (i == step_mngr.count) {
1108                 return rte_flow_error_set(error, EINVAL,
1109                                           RTE_FLOW_ERROR_TYPE_ITEM,
1110                                           item, "Inval or missing item");
1111         }
1112         return 0;
1113 }
1114
1115 static inline bool
1116 is_tunnel_packet(enum rte_flow_item_type type)
1117 {
1118         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1119             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1120             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1121             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1122             type == RTE_FLOW_ITEM_TYPE_MPLS)
1123                 return true;
1124         return false;
1125 }
1126
1127 /*
1128  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1129  * And get the flow director filter info BTW.
1130  * UDP/TCP/SCTP PATTERN:
1131  * The first not void item can be ETH or IPV4 or IPV6
1132  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1133  * The next not void item could be UDP or TCP or SCTP (optional)
1134  * The next not void item could be RAW (for flexbyte, optional)
1135  * The next not void item must be END.
1136  * A Fuzzy Match pattern can appear at any place before END.
1137  * Fuzzy Match is optional for IPV4 but is required for IPV6
1138  * MAC VLAN PATTERN:
1139  * The first not void item must be ETH.
1140  * The second not void item must be MAC VLAN.
1141  * The next not void item must be END.
1142  * ACTION:
1143  * The first not void action should be QUEUE or DROP.
1144  * The second not void optional action should be MARK,
1145  * mark_id is a uint32_t number.
1146  * The next not void action should be END.
1147  * UDP/TCP/SCTP pattern example:
1148  * ITEM         Spec                    Mask
1149  * ETH          NULL                    NULL
1150  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1151  *              dst_addr 192.167.3.50   0xFFFFFFFF
1152  * UDP/TCP/SCTP src_port        80      0xFFFF
1153  *              dst_port        80      0xFFFF
1154  * END
1155  * MAC VLAN pattern example:
1156  * ITEM         Spec                    Mask
1157  * ETH          dst_addr
1158                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1159                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1160  * MAC VLAN     tci     0x2016          0xEFFF
1161  * END
1162  * Other members in mask and spec should set to 0x00.
1163  * Item->last should be NULL.
1164  */
1165 static int
1166 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1167                        const struct rte_flow_item pattern[],
1168                        const struct rte_flow_action actions[],
1169                        struct hns3_fdir_rule *rule,
1170                        struct rte_flow_error *error)
1171 {
1172         struct hns3_adapter *hns = dev->data->dev_private;
1173         const struct rte_flow_item *item;
1174         struct items_step_mngr step_mngr;
1175         int ret;
1176
1177         /* FDIR is available only in PF driver */
1178         if (hns->is_vf)
1179                 return rte_flow_error_set(error, ENOTSUP,
1180                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1181                                           "Fdir not supported in VF");
1182
1183         step_mngr.items = first_items;
1184         step_mngr.count = ARRAY_SIZE(first_items);
1185         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1186                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1187                         continue;
1188
1189                 ret = hns3_validate_item(item, step_mngr, error);
1190                 if (ret)
1191                         return ret;
1192
1193                 if (is_tunnel_packet(item->type)) {
1194                         ret = hns3_parse_tunnel(item, rule, error);
1195                         if (ret)
1196                                 return ret;
1197                         step_mngr.items = tunnel_next_items;
1198                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1199                 } else {
1200                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1201                         if (ret)
1202                                 return ret;
1203                 }
1204         }
1205
1206         return hns3_handle_actions(dev, actions, rule, error);
1207 }
1208
1209 void
1210 hns3_filterlist_init(struct rte_eth_dev *dev)
1211 {
1212         struct hns3_process_private *process_list = dev->process_private;
1213
1214         TAILQ_INIT(&process_list->fdir_list);
1215         TAILQ_INIT(&process_list->filter_rss_list);
1216         TAILQ_INIT(&process_list->flow_list);
1217 }
1218
1219 static void
1220 hns3_filterlist_flush(struct rte_eth_dev *dev)
1221 {
1222         struct hns3_process_private *process_list = dev->process_private;
1223         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1224         struct hns3_rss_conf_ele *rss_filter_ptr;
1225         struct hns3_flow_mem *flow_node;
1226
1227         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1228         while (fdir_rule_ptr) {
1229                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1230                 rte_free(fdir_rule_ptr);
1231                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1232         }
1233
1234         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1235         while (rss_filter_ptr) {
1236                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1237                              entries);
1238                 rte_free(rss_filter_ptr);
1239                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1240         }
1241
1242         flow_node = TAILQ_FIRST(&process_list->flow_list);
1243         while (flow_node) {
1244                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1245                 rte_free(flow_node->flow);
1246                 rte_free(flow_node);
1247                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1248         }
1249 }
1250
1251 static bool
1252 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1253                      const struct rte_flow_action_rss *with)
1254 {
1255         bool func_is_same;
1256
1257         /*
1258          * When user flush all RSS rule, RSS func is set invalid with
1259          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1260          * flushed, any validate RSS func is different with it before
1261          * flushed. Others, when user create an action RSS with RSS func
1262          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1263          * between continuous RSS flow.
1264          */
1265         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1266                 func_is_same = false;
1267         else
1268                 func_is_same = with->func ? (comp->func == with->func) : true;
1269
1270         return (func_is_same &&
1271                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1272                 comp->level == with->level && comp->key_len == with->key_len &&
1273                 comp->queue_num == with->queue_num &&
1274                 !memcmp(comp->key, with->key, with->key_len) &&
1275                 !memcmp(comp->queue, with->queue,
1276                         sizeof(*with->queue) * with->queue_num));
1277 }
1278
1279 static int
1280 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1281                    const struct rte_flow_action_rss *in)
1282 {
1283         if (in->key_len > RTE_DIM(out->key) ||
1284             in->queue_num > RTE_DIM(out->queue))
1285                 return -EINVAL;
1286         if (in->key == NULL && in->key_len)
1287                 return -EINVAL;
1288         out->conf = (struct rte_flow_action_rss) {
1289                 .func = in->func,
1290                 .level = in->level,
1291                 .types = in->types,
1292                 .key_len = in->key_len,
1293                 .queue_num = in->queue_num,
1294         };
1295         out->conf.queue = memcpy(out->queue, in->queue,
1296                                 sizeof(*in->queue) * in->queue_num);
1297         if (in->key)
1298                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1299
1300         return 0;
1301 }
1302
1303 static bool
1304 hns3_rss_input_tuple_supported(struct hns3_hw *hw,
1305                                const struct rte_flow_action_rss *rss)
1306 {
1307         /*
1308          * For IP packet, it is not supported to use src/dst port fields to RSS
1309          * hash for the following packet types.
1310          * - IPV4 FRAG | IPV4 NONFRAG | IPV6 FRAG | IPV6 NONFRAG
1311          * Besides, for Kunpeng920, the NIC HW is not supported to use src/dst
1312          * port fields to RSS hash for IPV6 SCTP packet type. However, the
1313          * Kunpeng930 and future kunpeng series support to use src/dst port
1314          * fields to RSS hash for IPv6 SCTP packet type.
1315          */
1316         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1317             (rss->types & ETH_RSS_IP ||
1318             (!hw->rss_info.ipv6_sctp_offload_supported &&
1319             rss->types & ETH_RSS_NONFRAG_IPV6_SCTP)))
1320                 return false;
1321
1322         return true;
1323 }
1324
1325 /*
1326  * This function is used to parse rss action validatation.
1327  */
1328 static int
1329 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1330                       const struct rte_flow_action *actions,
1331                       struct rte_flow_error *error)
1332 {
1333         struct hns3_adapter *hns = dev->data->dev_private;
1334         struct hns3_hw *hw = &hns->hw;
1335         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1336         const struct rte_flow_action_rss *rss;
1337         const struct rte_flow_action *act;
1338         uint32_t act_index = 0;
1339         uint16_t n;
1340
1341         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1342         rss = act->conf;
1343
1344         if (rss == NULL) {
1345                 return rte_flow_error_set(error, EINVAL,
1346                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1347                                           act, "no valid queues");
1348         }
1349
1350         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1351                 return rte_flow_error_set(error, ENOTSUP,
1352                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1353                                           "queue number configured exceeds "
1354                                           "queue buffer size driver supported");
1355
1356         for (n = 0; n < rss->queue_num; n++) {
1357                 if (rss->queue[n] < hw->alloc_rss_size)
1358                         continue;
1359                 return rte_flow_error_set(error, EINVAL,
1360                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1361                                           "queue id must be less than queue number allocated to a TC");
1362         }
1363
1364         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1365                 return rte_flow_error_set(error, EINVAL,
1366                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1367                                           act,
1368                                           "Flow types is unsupported by "
1369                                           "hns3's RSS");
1370         if (rss->func >= RTE_ETH_HASH_FUNCTION_MAX)
1371                 return rte_flow_error_set(error, ENOTSUP,
1372                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1373                                           "RSS hash func are not supported");
1374         if (rss->level)
1375                 return rte_flow_error_set(error, ENOTSUP,
1376                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1377                                           "a nonzero RSS encapsulation level is not supported");
1378         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1379                 return rte_flow_error_set(error, ENOTSUP,
1380                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1381                                           "RSS hash key must be exactly 40 bytes");
1382
1383         if (!hns3_rss_input_tuple_supported(hw, rss))
1384                 return rte_flow_error_set(error, EINVAL,
1385                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1386                                           &rss->types,
1387                                           "input RSS types are not supported");
1388
1389         act_index++;
1390
1391         /* Check if the next not void action is END */
1392         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1393         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1394                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1395                 return rte_flow_error_set(error, EINVAL,
1396                                           RTE_FLOW_ERROR_TYPE_ACTION,
1397                                           act, "Not supported action.");
1398         }
1399
1400         return 0;
1401 }
1402
1403 static int
1404 hns3_disable_rss(struct hns3_hw *hw)
1405 {
1406         int ret;
1407
1408         /* Redirected the redirection table to queue 0 */
1409         ret = hns3_rss_reset_indir_table(hw);
1410         if (ret)
1411                 return ret;
1412
1413         /* Disable RSS */
1414         hw->rss_info.conf.types = 0;
1415         hw->rss_dis_flag = true;
1416
1417         return 0;
1418 }
1419
1420 static void
1421 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1422 {
1423         if (rss_conf->key == NULL || rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1424                 hns3_warn(hw, "Default RSS hash key to be set");
1425                 rss_conf->key = hns3_hash_key;
1426                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1427         }
1428 }
1429
1430 static int
1431 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1432                          uint8_t *hash_algo)
1433 {
1434         enum rte_eth_hash_function algo_func = *func;
1435         switch (algo_func) {
1436         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1437                 /* Keep *hash_algo as what it used to be */
1438                 algo_func = hw->rss_info.conf.func;
1439                 break;
1440         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1441                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1442                 break;
1443         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1444                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1445                 break;
1446         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1447                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1448                 break;
1449         default:
1450                 hns3_err(hw, "Invalid RSS algorithm configuration(%d)",
1451                          algo_func);
1452                 return -EINVAL;
1453         }
1454         *func = algo_func;
1455
1456         return 0;
1457 }
1458
1459 static int
1460 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1461 {
1462         struct hns3_rss_tuple_cfg *tuple;
1463         int ret;
1464
1465         hns3_parse_rss_key(hw, rss_config);
1466
1467         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1468                                        &hw->rss_info.hash_algo);
1469         if (ret)
1470                 return ret;
1471
1472         ret = hns3_rss_set_algo_key(hw, rss_config->key);
1473         if (ret)
1474                 return ret;
1475
1476         hw->rss_info.conf.func = rss_config->func;
1477
1478         tuple = &hw->rss_info.rss_tuple_sets;
1479         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1480         if (ret)
1481                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1482
1483         return ret;
1484 }
1485
1486 static int
1487 hns3_update_indir_table(struct rte_eth_dev *dev,
1488                         const struct rte_flow_action_rss *conf, uint16_t num)
1489 {
1490         struct hns3_adapter *hns = dev->data->dev_private;
1491         struct hns3_hw *hw = &hns->hw;
1492         uint16_t indir_tbl[HNS3_RSS_IND_TBL_SIZE_MAX];
1493         uint16_t j;
1494         uint32_t i;
1495
1496         /* Fill in redirection table */
1497         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1498                sizeof(hw->rss_info.rss_indirection_tbl));
1499         for (i = 0, j = 0; i < hw->rss_ind_tbl_size; i++, j++) {
1500                 j %= num;
1501                 if (conf->queue[j] >= hw->alloc_rss_size) {
1502                         hns3_err(hw, "queue id(%u) set to redirection table "
1503                                  "exceeds queue number(%u) allocated to a TC.",
1504                                  conf->queue[j], hw->alloc_rss_size);
1505                         return -EINVAL;
1506                 }
1507                 indir_tbl[i] = conf->queue[j];
1508         }
1509
1510         return hns3_set_rss_indir_table(hw, indir_tbl, hw->rss_ind_tbl_size);
1511 }
1512
1513 static int
1514 hns3_config_rss_filter(struct rte_eth_dev *dev,
1515                        const struct hns3_rss_conf *conf, bool add)
1516 {
1517         struct hns3_process_private *process_list = dev->process_private;
1518         struct hns3_adapter *hns = dev->data->dev_private;
1519         struct hns3_rss_conf_ele *rss_filter_ptr;
1520         struct hns3_hw *hw = &hns->hw;
1521         struct hns3_rss_conf *rss_info;
1522         uint64_t flow_types;
1523         uint16_t num;
1524         int ret;
1525
1526         struct rte_flow_action_rss rss_flow_conf = {
1527                 .func = conf->conf.func,
1528                 .level = conf->conf.level,
1529                 .types = conf->conf.types,
1530                 .key_len = conf->conf.key_len,
1531                 .queue_num = conf->conf.queue_num,
1532                 .key = conf->conf.key_len ?
1533                     (void *)(uintptr_t)conf->conf.key : NULL,
1534                 .queue = conf->conf.queue,
1535         };
1536
1537         /* Filter the unsupported flow types */
1538         flow_types = conf->conf.types ?
1539                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1540                      hw->rss_info.conf.types;
1541         if (flow_types != rss_flow_conf.types)
1542                 hns3_warn(hw, "modified RSS types based on hardware support, "
1543                               "requested:%" PRIx64 " configured:%" PRIx64,
1544                           rss_flow_conf.types, flow_types);
1545         /* Update the useful flow types */
1546         rss_flow_conf.types = flow_types;
1547
1548         rss_info = &hw->rss_info;
1549         if (!add) {
1550                 if (!conf->valid)
1551                         return 0;
1552
1553                 ret = hns3_disable_rss(hw);
1554                 if (ret) {
1555                         hns3_err(hw, "RSS disable failed(%d)", ret);
1556                         return ret;
1557                 }
1558
1559                 if (rss_flow_conf.queue_num) {
1560                         /*
1561                          * Due the content of queue pointer have been reset to
1562                          * 0, the rss_info->conf.queue should be set to NULL
1563                          */
1564                         rss_info->conf.queue = NULL;
1565                         rss_info->conf.queue_num = 0;
1566                 }
1567
1568                 /* set RSS func invalid after flushed */
1569                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1570                 return 0;
1571         }
1572
1573         /* Set rx queues to use */
1574         num = RTE_MIN(dev->data->nb_rx_queues, rss_flow_conf.queue_num);
1575         if (rss_flow_conf.queue_num > num)
1576                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1577                           rss_flow_conf.queue_num);
1578         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1579
1580         rte_spinlock_lock(&hw->lock);
1581         if (num) {
1582                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1583                 if (ret)
1584                         goto rss_config_err;
1585         }
1586
1587         /* Set hash algorithm and flow types by the user's config */
1588         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1589         if (ret)
1590                 goto rss_config_err;
1591
1592         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1593         if (ret) {
1594                 hns3_err(hw, "RSS config init fail(%d)", ret);
1595                 goto rss_config_err;
1596         }
1597
1598         /*
1599          * When create a new RSS rule, the old rule will be overlaid and set
1600          * invalid.
1601          */
1602         TAILQ_FOREACH(rss_filter_ptr, &process_list->filter_rss_list, entries)
1603                 rss_filter_ptr->filter_info.valid = false;
1604
1605 rss_config_err:
1606         rte_spinlock_unlock(&hw->lock);
1607
1608         return ret;
1609 }
1610
1611 static int
1612 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1613 {
1614         struct hns3_process_private *process_list = dev->process_private;
1615         struct hns3_adapter *hns = dev->data->dev_private;
1616         struct hns3_rss_conf_ele *rss_filter_ptr;
1617         struct hns3_hw *hw = &hns->hw;
1618         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1619         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1620         int ret = 0;
1621
1622         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1623         while (rss_filter_ptr) {
1624                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1625                              entries);
1626                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1627                                              false);
1628                 if (ret)
1629                         rss_rule_fail_cnt++;
1630                 else
1631                         rss_rule_succ_cnt++;
1632                 rte_free(rss_filter_ptr);
1633                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1634         }
1635
1636         if (rss_rule_fail_cnt) {
1637                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1638                              "fail num = %d", rss_rule_succ_cnt,
1639                              rss_rule_fail_cnt);
1640                 ret = -EIO;
1641         }
1642
1643         return ret;
1644 }
1645
1646 int
1647 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1648 {
1649         struct hns3_adapter *hns = dev->data->dev_private;
1650         struct hns3_hw *hw = &hns->hw;
1651
1652         /* When user flush all rules, it doesn't need to restore RSS rule */
1653         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1654                 return 0;
1655
1656         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1657 }
1658
1659 static int
1660 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1661                     const struct hns3_rss_conf *conf, bool add)
1662 {
1663         struct hns3_adapter *hns = dev->data->dev_private;
1664         struct hns3_hw *hw = &hns->hw;
1665         bool ret;
1666
1667         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1668         if (ret) {
1669                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1670                 return -EINVAL;
1671         }
1672
1673         return hns3_config_rss_filter(dev, conf, add);
1674 }
1675
1676 static int
1677 hns3_flow_args_check(const struct rte_flow_attr *attr,
1678                      const struct rte_flow_item pattern[],
1679                      const struct rte_flow_action actions[],
1680                      struct rte_flow_error *error)
1681 {
1682         if (pattern == NULL)
1683                 return rte_flow_error_set(error, EINVAL,
1684                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1685                                           NULL, "NULL pattern.");
1686
1687         if (actions == NULL)
1688                 return rte_flow_error_set(error, EINVAL,
1689                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1690                                           NULL, "NULL action.");
1691
1692         if (attr == NULL)
1693                 return rte_flow_error_set(error, EINVAL,
1694                                           RTE_FLOW_ERROR_TYPE_ATTR,
1695                                           NULL, "NULL attribute.");
1696
1697         return hns3_check_attr(attr, error);
1698 }
1699
1700 /*
1701  * Check if the flow rule is supported by hns3.
1702  * It only checkes the format. Don't guarantee the rule can be programmed into
1703  * the HW. Because there can be no enough room for the rule.
1704  */
1705 static int
1706 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1707                    const struct rte_flow_item pattern[],
1708                    const struct rte_flow_action actions[],
1709                    struct rte_flow_error *error)
1710 {
1711         struct hns3_fdir_rule fdir_rule;
1712         int ret;
1713
1714         ret = hns3_flow_args_check(attr, pattern, actions, error);
1715         if (ret)
1716                 return ret;
1717
1718         if (hns3_find_rss_general_action(pattern, actions))
1719                 return hns3_parse_rss_filter(dev, actions, error);
1720
1721         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1722         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1723 }
1724
1725 /*
1726  * Create or destroy a flow rule.
1727  * Theorically one rule can match more than one filters.
1728  * We will let it use the filter which it hit first.
1729  * So, the sequence matters.
1730  */
1731 static struct rte_flow *
1732 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1733                  const struct rte_flow_item pattern[],
1734                  const struct rte_flow_action actions[],
1735                  struct rte_flow_error *error)
1736 {
1737         struct hns3_process_private *process_list = dev->process_private;
1738         struct hns3_adapter *hns = dev->data->dev_private;
1739         struct hns3_hw *hw = &hns->hw;
1740         const struct hns3_rss_conf *rss_conf;
1741         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1742         struct hns3_rss_conf_ele *rss_filter_ptr;
1743         struct hns3_flow_mem *flow_node;
1744         const struct rte_flow_action *act;
1745         struct rte_flow *flow;
1746         struct hns3_fdir_rule fdir_rule;
1747         int ret;
1748
1749         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1750         if (ret)
1751                 return NULL;
1752
1753         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1754         if (flow == NULL) {
1755                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1756                                    NULL, "Failed to allocate flow memory");
1757                 return NULL;
1758         }
1759         flow_node = rte_zmalloc("hns3 flow node",
1760                                 sizeof(struct hns3_flow_mem), 0);
1761         if (flow_node == NULL) {
1762                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1763                                    NULL, "Failed to allocate flow list memory");
1764                 rte_free(flow);
1765                 return NULL;
1766         }
1767
1768         flow_node->flow = flow;
1769         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1770
1771         act = hns3_find_rss_general_action(pattern, actions);
1772         if (act) {
1773                 rss_conf = act->conf;
1774
1775                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1776                 if (ret)
1777                         goto err;
1778
1779                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1780                                              sizeof(struct hns3_rss_conf_ele),
1781                                              0);
1782                 if (rss_filter_ptr == NULL) {
1783                         hns3_err(hw,
1784                                     "Failed to allocate hns3_rss_filter memory");
1785                         ret = -ENOMEM;
1786                         goto err;
1787                 }
1788                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1789                                    &rss_conf->conf);
1790                 rss_filter_ptr->filter_info.valid = true;
1791                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1792                                   rss_filter_ptr, entries);
1793
1794                 flow->rule = rss_filter_ptr;
1795                 flow->filter_type = RTE_ETH_FILTER_HASH;
1796                 return flow;
1797         }
1798
1799         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1800         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1801         if (ret)
1802                 goto out;
1803
1804         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1805                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1806                                        fdir_rule.act_cnt.id, error);
1807                 if (ret)
1808                         goto out;
1809
1810                 flow->counter_id = fdir_rule.act_cnt.id;
1811         }
1812         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1813         if (!ret) {
1814                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1815                                             sizeof(struct hns3_fdir_rule_ele),
1816                                             0);
1817                 if (fdir_rule_ptr == NULL) {
1818                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1819                         ret = -ENOMEM;
1820                         goto err_fdir;
1821                 }
1822
1823                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1824                         sizeof(struct hns3_fdir_rule));
1825                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1826                                   fdir_rule_ptr, entries);
1827                 flow->rule = fdir_rule_ptr;
1828                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1829
1830                 return flow;
1831         }
1832
1833 err_fdir:
1834         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1835                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1836
1837 err:
1838         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1839                            "Failed to create flow");
1840 out:
1841         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1842         rte_free(flow_node);
1843         rte_free(flow);
1844         return NULL;
1845 }
1846
1847 /* Destroy a flow rule on hns3. */
1848 static int
1849 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1850                   struct rte_flow_error *error)
1851 {
1852         struct hns3_process_private *process_list = dev->process_private;
1853         struct hns3_adapter *hns = dev->data->dev_private;
1854         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1855         struct hns3_rss_conf_ele *rss_filter_ptr;
1856         struct hns3_flow_mem *flow_node;
1857         enum rte_filter_type filter_type;
1858         struct hns3_fdir_rule fdir_rule;
1859         int ret;
1860
1861         if (flow == NULL)
1862                 return rte_flow_error_set(error, EINVAL,
1863                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1864                                           flow, "Flow is NULL");
1865
1866         filter_type = flow->filter_type;
1867         switch (filter_type) {
1868         case RTE_ETH_FILTER_FDIR:
1869                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1870                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1871                            sizeof(struct hns3_fdir_rule));
1872
1873                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1874                 if (ret)
1875                         return rte_flow_error_set(error, EIO,
1876                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1877                                                   flow,
1878                                                   "Destroy FDIR fail.Try again");
1879                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1880                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1881                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1882                 rte_free(fdir_rule_ptr);
1883                 fdir_rule_ptr = NULL;
1884                 break;
1885         case RTE_ETH_FILTER_HASH:
1886                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1887                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1888                                              false);
1889                 if (ret)
1890                         return rte_flow_error_set(error, EIO,
1891                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1892                                                   flow,
1893                                                   "Destroy RSS fail.Try again");
1894                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1895                              entries);
1896                 rte_free(rss_filter_ptr);
1897                 rss_filter_ptr = NULL;
1898                 break;
1899         default:
1900                 return rte_flow_error_set(error, EINVAL,
1901                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1902                                           "Unsupported filter type");
1903         }
1904
1905         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1906                 if (flow_node->flow == flow) {
1907                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1908                                      entries);
1909                         rte_free(flow_node);
1910                         flow_node = NULL;
1911                         break;
1912                 }
1913         }
1914         rte_free(flow);
1915         flow = NULL;
1916
1917         return 0;
1918 }
1919
1920 /*  Destroy all flow rules associated with a port on hns3. */
1921 static int
1922 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1923 {
1924         struct hns3_adapter *hns = dev->data->dev_private;
1925         int ret;
1926
1927         /* FDIR is available only in PF driver */
1928         if (!hns->is_vf) {
1929                 ret = hns3_clear_all_fdir_filter(hns);
1930                 if (ret) {
1931                         rte_flow_error_set(error, ret,
1932                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1933                                            NULL, "Failed to flush rule");
1934                         return ret;
1935                 }
1936                 hns3_counter_flush(dev);
1937         }
1938
1939         ret = hns3_clear_rss_filter(dev);
1940         if (ret) {
1941                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1942                                    NULL, "Failed to flush rss filter");
1943                 return ret;
1944         }
1945
1946         hns3_filterlist_flush(dev);
1947
1948         return 0;
1949 }
1950
1951 /* Query an existing flow rule. */
1952 static int
1953 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1954                 const struct rte_flow_action *actions, void *data,
1955                 struct rte_flow_error *error)
1956 {
1957         struct rte_flow_action_rss *rss_conf;
1958         struct hns3_rss_conf_ele *rss_rule;
1959         struct rte_flow_query_count *qc;
1960         int ret;
1961
1962         if (!flow->rule)
1963                 return rte_flow_error_set(error, EINVAL,
1964                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
1965
1966         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1967                 switch (actions->type) {
1968                 case RTE_FLOW_ACTION_TYPE_VOID:
1969                         break;
1970                 case RTE_FLOW_ACTION_TYPE_COUNT:
1971                         qc = (struct rte_flow_query_count *)data;
1972                         ret = hns3_counter_query(dev, flow, qc, error);
1973                         if (ret)
1974                                 return ret;
1975                         break;
1976                 case RTE_FLOW_ACTION_TYPE_RSS:
1977                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
1978                                 return rte_flow_error_set(error, ENOTSUP,
1979                                         RTE_FLOW_ERROR_TYPE_ACTION,
1980                                         actions, "action is not supported");
1981                         }
1982                         rss_conf = (struct rte_flow_action_rss *)data;
1983                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
1984                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
1985                                    sizeof(struct rte_flow_action_rss));
1986                         break;
1987                 default:
1988                         return rte_flow_error_set(error, ENOTSUP,
1989                                 RTE_FLOW_ERROR_TYPE_ACTION,
1990                                 actions, "action is not supported");
1991                 }
1992         }
1993
1994         return 0;
1995 }
1996
1997 static const struct rte_flow_ops hns3_flow_ops = {
1998         .validate = hns3_flow_validate,
1999         .create = hns3_flow_create,
2000         .destroy = hns3_flow_destroy,
2001         .flush = hns3_flow_flush,
2002         .query = hns3_flow_query,
2003         .isolate = NULL,
2004 };
2005
2006 /*
2007  * The entry of flow API.
2008  * @param dev
2009  *   Pointer to Ethernet device.
2010  * @return
2011  *   0 on success, a negative errno value otherwise is set.
2012  */
2013 int
2014 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
2015                      enum rte_filter_op filter_op, void *arg)
2016 {
2017         struct hns3_hw *hw;
2018         int ret = 0;
2019
2020         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2021         switch (filter_type) {
2022         case RTE_ETH_FILTER_GENERIC:
2023                 if (filter_op != RTE_ETH_FILTER_GET)
2024                         return -EINVAL;
2025                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
2026                         return -ENODEV;
2027                 *(const void **)arg = &hns3_flow_ops;
2028                 break;
2029         default:
2030                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
2031                 ret = -EOPNOTSUPP;
2032                 break;
2033         }
2034
2035         return ret;
2036 }