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         /* Only used to describe the protocol stack. */
 704         if (item->spec == NULL && item->mask == NULL)
 705                 return 0;
 706
 707         if (item->mask) {
 708                 udp_mask = item->mask;
 709                 if (udp_mask->hdr.dgram_len || udp_mask->hdr.dgram_cksum) {
 710                         return rte_flow_error_set(error, EINVAL,
 711                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 712                                                   item,
 713                                                   "Only support src & dst port in UDP");
 714                 }
 715                 if (udp_mask->hdr.src_port) {
 716                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 717                         rule->key_conf.mask.src_port =
 718                             rte_be_to_cpu_16(udp_mask->hdr.src_port);
 719                 }
 720                 if (udp_mask->hdr.dst_port) {
 721                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 722                         rule->key_conf.mask.dst_port =
 723                             rte_be_to_cpu_16(udp_mask->hdr.dst_port);
 724                 }
 725         }
 726
 727         udp_spec = item->spec;
 728         rule->key_conf.spec.src_port = rte_be_to_cpu_16(udp_spec->hdr.src_port);
 729         rule->key_conf.spec.dst_port = rte_be_to_cpu_16(udp_spec->hdr.dst_port);
 730
 731         return 0;
 732 }
 733
 734 static int
 735 hns3_parse_sctp(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 736                 struct rte_flow_error *error)
 737 {
 738         const struct rte_flow_item_sctp *sctp_spec;
 739         const struct rte_flow_item_sctp *sctp_mask;
 740
 741         hns3_set_bit(rule->input_set, INNER_IP_PROTO, 1);
 742         rule->key_conf.spec.ip_proto = IPPROTO_SCTP;
 743         rule->key_conf.mask.ip_proto = IPPROTO_MASK;
 744
 745         /* Only used to describe the protocol stack. */
 746         if (item->spec == NULL && item->mask == NULL)
 747                 return 0;
 748
 749         if (item->mask) {
 750                 sctp_mask = item->mask;
 751                 if (sctp_mask->hdr.cksum)
 752                         return rte_flow_error_set(error, EINVAL,
 753                                                   RTE_FLOW_ERROR_TYPE_ITEM_MASK,
 754                                                   item,
 755                                                   "Only support src & dst port in SCTP");
 756                 if (sctp_mask->hdr.src_port) {
 757                         hns3_set_bit(rule->input_set, INNER_SRC_PORT, 1);
 758                         rule->key_conf.mask.src_port =
 759                             rte_be_to_cpu_16(sctp_mask->hdr.src_port);
 760                 }
 761                 if (sctp_mask->hdr.dst_port) {
 762                         hns3_set_bit(rule->input_set, INNER_DST_PORT, 1);
 763                         rule->key_conf.mask.dst_port =
 764                             rte_be_to_cpu_16(sctp_mask->hdr.dst_port);
 765                 }
 766                 if (sctp_mask->hdr.tag) {
 767                         hns3_set_bit(rule->input_set, INNER_SCTP_TAG, 1);
 768                         rule->key_conf.mask.sctp_tag =
 769                             rte_be_to_cpu_32(sctp_mask->hdr.tag);
 770                 }
 771         }
 772
 773         sctp_spec = item->spec;
 774         rule->key_conf.spec.src_port =
 775             rte_be_to_cpu_16(sctp_spec->hdr.src_port);
 776         rule->key_conf.spec.dst_port =
 777             rte_be_to_cpu_16(sctp_spec->hdr.dst_port);
 778         rule->key_conf.spec.sctp_tag = rte_be_to_cpu_32(sctp_spec->hdr.tag);
 779
 780         return 0;
 781 }
 782
 783 /*
 784  * Check items before tunnel, save inner configs to outer configs, and clear
 785  * inner configs.
 786  * The key consists of two parts: meta_data and tuple keys.
 787  * Meta data uses 15 bits, including vlan_num(2bit), des_port(12bit) and tunnel
 788  * packet(1bit).
 789  * Tuple keys uses 384bit, including ot_dst-mac(48bit), ot_dst-port(16bit),
 790  * ot_tun_vni(24bit), ot_flow_id(8bit), src-mac(48bit), dst-mac(48bit),
 791  * src-ip(32/128bit), dst-ip(32/128bit), src-port(16bit), dst-port(16bit),
 792  * tos(8bit), ether-proto(16bit), ip-proto(8bit), vlantag1(16bit),
 793  * Vlantag2(16bit) and sctp-tag(32bit).
 794  */
 795 static int
 796 hns3_handle_tunnel(const struct rte_flow_item *item,
 797                    struct hns3_fdir_rule *rule, struct rte_flow_error *error)
 798 {
 799         /* check eth config */
 800         if (rule->input_set & (BIT(INNER_SRC_MAC) | BIT(INNER_DST_MAC)))
 801                 return rte_flow_error_set(error, EINVAL,
 802                                           RTE_FLOW_ERROR_TYPE_ITEM,
 803                                           item, "Outer eth mac is unsupported");
 804         if (rule->input_set & BIT(INNER_ETH_TYPE)) {
 805                 hns3_set_bit(rule->input_set, OUTER_ETH_TYPE, 1);
 806                 rule->key_conf.spec.outer_ether_type =
 807                     rule->key_conf.spec.ether_type;
 808                 rule->key_conf.mask.outer_ether_type =
 809                     rule->key_conf.mask.ether_type;
 810                 hns3_set_bit(rule->input_set, INNER_ETH_TYPE, 0);
 811                 rule->key_conf.spec.ether_type = 0;
 812                 rule->key_conf.mask.ether_type = 0;
 813         }
 814
 815         /* check vlan config */
 816         if (rule->input_set & (BIT(INNER_VLAN_TAG1) | BIT(INNER_VLAN_TAG2)))
 817                 return rte_flow_error_set(error, EINVAL,
 818                                           RTE_FLOW_ERROR_TYPE_ITEM,
 819                                           item,
 820                                           "Outer vlan tags is unsupported");
 821
 822         /* clear vlan_num for inner vlan select */
 823         rule->key_conf.outer_vlan_num = rule->key_conf.vlan_num;
 824         rule->key_conf.vlan_num = 0;
 825
 826         /* check L3 config */
 827         if (rule->input_set &
 828             (BIT(INNER_SRC_IP) | BIT(INNER_DST_IP) | BIT(INNER_IP_TOS)))
 829                 return rte_flow_error_set(error, EINVAL,
 830                                           RTE_FLOW_ERROR_TYPE_ITEM,
 831                                           item, "Outer ip is unsupported");
 832         if (rule->input_set & BIT(INNER_IP_PROTO)) {
 833                 hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 834                 rule->key_conf.spec.outer_proto = rule->key_conf.spec.ip_proto;
 835                 rule->key_conf.mask.outer_proto = rule->key_conf.mask.ip_proto;
 836                 hns3_set_bit(rule->input_set, INNER_IP_PROTO, 0);
 837                 rule->key_conf.spec.ip_proto = 0;
 838                 rule->key_conf.mask.ip_proto = 0;
 839         }
 840
 841         /* check L4 config */
 842         if (rule->input_set & BIT(INNER_SCTP_TAG))
 843                 return rte_flow_error_set(error, EINVAL,
 844                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
 845                                           "Outer sctp tag is unsupported");
 846
 847         if (rule->input_set & BIT(INNER_SRC_PORT)) {
 848                 hns3_set_bit(rule->input_set, OUTER_SRC_PORT, 1);
 849                 rule->key_conf.spec.outer_src_port =
 850                     rule->key_conf.spec.src_port;
 851                 rule->key_conf.mask.outer_src_port =
 852                     rule->key_conf.mask.src_port;
 853                 hns3_set_bit(rule->input_set, INNER_SRC_PORT, 0);
 854                 rule->key_conf.spec.src_port = 0;
 855                 rule->key_conf.mask.src_port = 0;
 856         }
 857         if (rule->input_set & BIT(INNER_DST_PORT)) {
 858                 hns3_set_bit(rule->input_set, INNER_DST_PORT, 0);
 859                 rule->key_conf.spec.dst_port = 0;
 860                 rule->key_conf.mask.dst_port = 0;
 861         }
 862         return 0;
 863 }
 864
 865 static int
 866 hns3_parse_vxlan(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 867                  struct rte_flow_error *error)
 868 {
 869         const struct rte_flow_item_vxlan *vxlan_spec;
 870         const struct rte_flow_item_vxlan *vxlan_mask;
 871
 872         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 873         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 874         if (item->type == RTE_FLOW_ITEM_TYPE_VXLAN)
 875                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN;
 876         else
 877                 rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_VXLAN_GPE;
 878
 879         /* Only used to describe the protocol stack. */
 880         if (item->spec == NULL && item->mask == NULL)
 881                 return 0;
 882
 883         vxlan_mask = item->mask;
 884         vxlan_spec = item->spec;
 885
 886         if (vxlan_mask->flags)
 887                 return rte_flow_error_set(error, EINVAL,
 888                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 889                                           "Flags is not supported in VxLAN");
 890
 891         /* VNI must be totally masked or not. */
 892         if (memcmp(vxlan_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 893             memcmp(vxlan_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 894                 return rte_flow_error_set(error, EINVAL,
 895                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 896                                           "VNI must be totally masked or not in VxLAN");
 897         if (vxlan_mask->vni[0]) {
 898                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 899                 memcpy(rule->key_conf.mask.outer_tun_vni, vxlan_mask->vni,
 900                            VNI_OR_TNI_LEN);
 901         }
 902         memcpy(rule->key_conf.spec.outer_tun_vni, vxlan_spec->vni,
 903                    VNI_OR_TNI_LEN);
 904         return 0;
 905 }
 906
 907 static int
 908 hns3_parse_nvgre(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 909                  struct rte_flow_error *error)
 910 {
 911         const struct rte_flow_item_nvgre *nvgre_spec;
 912         const struct rte_flow_item_nvgre *nvgre_mask;
 913
 914         hns3_set_bit(rule->input_set, OUTER_IP_PROTO, 1);
 915         rule->key_conf.spec.outer_proto = IPPROTO_GRE;
 916         rule->key_conf.mask.outer_proto = IPPROTO_MASK;
 917
 918         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 919         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_NVGRE;
 920         rule->key_conf.mask.tunnel_type = ~HNS3_TUNNEL_TYPE_NVGRE;
 921         /* Only used to describe the protocol stack. */
 922         if (item->spec == NULL && item->mask == NULL)
 923                 return 0;
 924
 925         nvgre_mask = item->mask;
 926         nvgre_spec = item->spec;
 927
 928         if (nvgre_mask->protocol || nvgre_mask->c_k_s_rsvd0_ver)
 929                 return rte_flow_error_set(error, EINVAL,
 930                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 931                                           "Ver/protocal is not supported in NVGRE");
 932
 933         /* TNI must be totally masked or not. */
 934         if (memcmp(nvgre_mask->tni, full_mask, VNI_OR_TNI_LEN) &&
 935             memcmp(nvgre_mask->tni, zero_mask, VNI_OR_TNI_LEN))
 936                 return rte_flow_error_set(error, EINVAL,
 937                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 938                                           "TNI must be totally masked or not in NVGRE");
 939
 940         if (nvgre_mask->tni[0]) {
 941                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 942                 memcpy(rule->key_conf.mask.outer_tun_vni, nvgre_mask->tni,
 943                            VNI_OR_TNI_LEN);
 944         }
 945         memcpy(rule->key_conf.spec.outer_tun_vni, nvgre_spec->tni,
 946                    VNI_OR_TNI_LEN);
 947
 948         if (nvgre_mask->flow_id) {
 949                 hns3_set_bit(rule->input_set, OUTER_TUN_FLOW_ID, 1);
 950                 rule->key_conf.mask.outer_tun_flow_id = nvgre_mask->flow_id;
 951         }
 952         rule->key_conf.spec.outer_tun_flow_id = nvgre_spec->flow_id;
 953         return 0;
 954 }
 955
 956 static int
 957 hns3_parse_geneve(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 958                   struct rte_flow_error *error)
 959 {
 960         const struct rte_flow_item_geneve *geneve_spec;
 961         const struct rte_flow_item_geneve *geneve_mask;
 962
 963         hns3_set_bit(rule->input_set, OUTER_DST_PORT, 1);
 964         rule->key_conf.spec.tunnel_type = HNS3_TUNNEL_TYPE_GENEVE;
 965         rule->key_conf.mask.tunnel_type = TUNNEL_TYPE_MASK;
 966         /* Only used to describe the protocol stack. */
 967         if (item->spec == NULL && item->mask == NULL)
 968                 return 0;
 969
 970         geneve_mask = item->mask;
 971         geneve_spec = item->spec;
 972
 973         if (geneve_mask->ver_opt_len_o_c_rsvd0 || geneve_mask->protocol)
 974                 return rte_flow_error_set(error, EINVAL,
 975                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 976                                           "Ver/protocal is not supported in GENEVE");
 977         /* VNI must be totally masked or not. */
 978         if (memcmp(geneve_mask->vni, full_mask, VNI_OR_TNI_LEN) &&
 979             memcmp(geneve_mask->vni, zero_mask, VNI_OR_TNI_LEN))
 980                 return rte_flow_error_set(error, EINVAL,
 981                                           RTE_FLOW_ERROR_TYPE_ITEM_MASK, item,
 982                                           "VNI must be totally masked or not in GENEVE");
 983         if (geneve_mask->vni[0]) {
 984                 hns3_set_bit(rule->input_set, OUTER_TUN_VNI, 1);
 985                 memcpy(rule->key_conf.mask.outer_tun_vni, geneve_mask->vni,
 986                            VNI_OR_TNI_LEN);
 987         }
 988         memcpy(rule->key_conf.spec.outer_tun_vni, geneve_spec->vni,
 989                    VNI_OR_TNI_LEN);
 990         return 0;
 991 }
 992
 993 static int
 994 hns3_parse_tunnel(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
 995                   struct rte_flow_error *error)
 996 {
 997         int ret;
 998
 999         if (item->spec == NULL && item->mask)
1000                 return rte_flow_error_set(error, EINVAL,
1001                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1002                                           "Can't configure FDIR with mask "
1003                                           "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 "
1008                                           "with mask");
1009
1010         switch (item->type) {
1011         case RTE_FLOW_ITEM_TYPE_VXLAN:
1012         case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
1013                 ret = hns3_parse_vxlan(item, rule, error);
1014                 break;
1015         case RTE_FLOW_ITEM_TYPE_NVGRE:
1016                 ret = hns3_parse_nvgre(item, rule, error);
1017                 break;
1018         case RTE_FLOW_ITEM_TYPE_GENEVE:
1019                 ret = hns3_parse_geneve(item, rule, error);
1020                 break;
1021         default:
1022                 return rte_flow_error_set(error, ENOTSUP,
1023                                           RTE_FLOW_ERROR_TYPE_ITEM,
1024                                           NULL, "Unsupported tunnel type!");
1025         }
1026         if (ret)
1027                 return ret;
1028         return hns3_handle_tunnel(item, rule, error);
1029 }
1030
1031 static int
1032 hns3_parse_normal(const struct rte_flow_item *item, struct hns3_fdir_rule *rule,
1033                   struct items_step_mngr *step_mngr,
1034                   struct rte_flow_error *error)
1035 {
1036         int ret;
1037
1038         if (item->spec == NULL && item->mask)
1039                 return rte_flow_error_set(error, EINVAL,
1040                                           RTE_FLOW_ERROR_TYPE_ITEM, item,
1041                                           "Can't configure FDIR with mask "
1042                                           "but without spec");
1043
1044         switch (item->type) {
1045         case RTE_FLOW_ITEM_TYPE_ETH:
1046                 ret = hns3_parse_eth(item, rule, error);
1047                 step_mngr->items = L2_next_items;
1048                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1049                 break;
1050         case RTE_FLOW_ITEM_TYPE_VLAN:
1051                 ret = hns3_parse_vlan(item, rule, error);
1052                 step_mngr->items = L2_next_items;
1053                 step_mngr->count = ARRAY_SIZE(L2_next_items);
1054                 break;
1055         case RTE_FLOW_ITEM_TYPE_IPV4:
1056                 ret = hns3_parse_ipv4(item, rule, error);
1057                 step_mngr->items = L3_next_items;
1058                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1059                 break;
1060         case RTE_FLOW_ITEM_TYPE_IPV6:
1061                 ret = hns3_parse_ipv6(item, rule, error);
1062                 step_mngr->items = L3_next_items;
1063                 step_mngr->count = ARRAY_SIZE(L3_next_items);
1064                 break;
1065         case RTE_FLOW_ITEM_TYPE_TCP:
1066                 ret = hns3_parse_tcp(item, rule, error);
1067                 step_mngr->items = L4_next_items;
1068                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1069                 break;
1070         case RTE_FLOW_ITEM_TYPE_UDP:
1071                 ret = hns3_parse_udp(item, rule, error);
1072                 step_mngr->items = L4_next_items;
1073                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1074                 break;
1075         case RTE_FLOW_ITEM_TYPE_SCTP:
1076                 ret = hns3_parse_sctp(item, rule, error);
1077                 step_mngr->items = L4_next_items;
1078                 step_mngr->count = ARRAY_SIZE(L4_next_items);
1079                 break;
1080         default:
1081                 return rte_flow_error_set(error, ENOTSUP,
1082                                           RTE_FLOW_ERROR_TYPE_ITEM,
1083                                           NULL, "Unsupported normal type!");
1084         }
1085
1086         return ret;
1087 }
1088
1089 static int
1090 hns3_validate_item(const struct rte_flow_item *item,
1091                    struct items_step_mngr step_mngr,
1092                    struct rte_flow_error *error)
1093 {
1094         int i;
1095
1096         if (item->last)
1097                 return rte_flow_error_set(error, ENOTSUP,
1098                                           RTE_FLOW_ERROR_TYPE_ITEM_LAST, item,
1099                                           "Not supported last point for range");
1100
1101         for (i = 0; i < step_mngr.count; i++) {
1102                 if (item->type == step_mngr.items[i])
1103                         break;
1104         }
1105
1106         if (i == step_mngr.count) {
1107                 return rte_flow_error_set(error, EINVAL,
1108                                           RTE_FLOW_ERROR_TYPE_ITEM,
1109                                           item, "Inval or missing item");
1110         }
1111         return 0;
1112 }
1113
1114 static inline bool
1115 is_tunnel_packet(enum rte_flow_item_type type)
1116 {
1117         if (type == RTE_FLOW_ITEM_TYPE_VXLAN_GPE ||
1118             type == RTE_FLOW_ITEM_TYPE_VXLAN ||
1119             type == RTE_FLOW_ITEM_TYPE_NVGRE ||
1120             type == RTE_FLOW_ITEM_TYPE_GENEVE ||
1121             type == RTE_FLOW_ITEM_TYPE_MPLS)
1122                 return true;
1123         return false;
1124 }
1125
1126 /*
1127  * Parse the rule to see if it is a IP or MAC VLAN flow director rule.
1128  * And get the flow director filter info BTW.
1129  * UDP/TCP/SCTP PATTERN:
1130  * The first not void item can be ETH or IPV4 or IPV6
1131  * The second not void item must be IPV4 or IPV6 if the first one is ETH.
1132  * The next not void item could be UDP or TCP or SCTP (optional)
1133  * The next not void item could be RAW (for flexbyte, optional)
1134  * The next not void item must be END.
1135  * A Fuzzy Match pattern can appear at any place before END.
1136  * Fuzzy Match is optional for IPV4 but is required for IPV6
1137  * MAC VLAN PATTERN:
1138  * The first not void item must be ETH.
1139  * The second not void item must be MAC VLAN.
1140  * The next not void item must be END.
1141  * ACTION:
1142  * The first not void action should be QUEUE or DROP.
1143  * The second not void optional action should be MARK,
1144  * mark_id is a uint32_t number.
1145  * The next not void action should be END.
1146  * UDP/TCP/SCTP pattern example:
1147  * ITEM         Spec                    Mask
1148  * ETH          NULL                    NULL
1149  * IPV4         src_addr 192.168.1.20   0xFFFFFFFF
1150  *              dst_addr 192.167.3.50   0xFFFFFFFF
1151  * UDP/TCP/SCTP src_port        80      0xFFFF
1152  *              dst_port        80      0xFFFF
1153  * END
1154  * MAC VLAN pattern example:
1155  * ITEM         Spec                    Mask
1156  * ETH          dst_addr
1157                 {0xAC, 0x7B, 0xA1,      {0xFF, 0xFF, 0xFF,
1158                 0x2C, 0x6D, 0x36}       0xFF, 0xFF, 0xFF}
1159  * MAC VLAN     tci     0x2016          0xEFFF
1160  * END
1161  * Other members in mask and spec should set to 0x00.
1162  * Item->last should be NULL.
1163  */
1164 static int
1165 hns3_parse_fdir_filter(struct rte_eth_dev *dev,
1166                        const struct rte_flow_item pattern[],
1167                        const struct rte_flow_action actions[],
1168                        struct hns3_fdir_rule *rule,
1169                        struct rte_flow_error *error)
1170 {
1171         struct hns3_adapter *hns = dev->data->dev_private;
1172         const struct rte_flow_item *item;
1173         struct items_step_mngr step_mngr;
1174         int ret;
1175
1176         /* FDIR is available only in PF driver */
1177         if (hns->is_vf)
1178                 return rte_flow_error_set(error, ENOTSUP,
1179                                           RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1180                                           "Fdir not supported in VF");
1181
1182         step_mngr.items = first_items;
1183         step_mngr.count = ARRAY_SIZE(first_items);
1184         for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
1185                 if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
1186                         continue;
1187
1188                 ret = hns3_validate_item(item, step_mngr, error);
1189                 if (ret)
1190                         return ret;
1191
1192                 if (is_tunnel_packet(item->type)) {
1193                         ret = hns3_parse_tunnel(item, rule, error);
1194                         if (ret)
1195                                 return ret;
1196                         step_mngr.items = tunnel_next_items;
1197                         step_mngr.count = ARRAY_SIZE(tunnel_next_items);
1198                 } else {
1199                         ret = hns3_parse_normal(item, rule, &step_mngr, error);
1200                         if (ret)
1201                                 return ret;
1202                 }
1203         }
1204
1205         return hns3_handle_actions(dev, actions, rule, error);
1206 }
1207
1208 void
1209 hns3_filterlist_init(struct rte_eth_dev *dev)
1210 {
1211         struct hns3_process_private *process_list = dev->process_private;
1212
1213         TAILQ_INIT(&process_list->fdir_list);
1214         TAILQ_INIT(&process_list->filter_rss_list);
1215         TAILQ_INIT(&process_list->flow_list);
1216 }
1217
1218 static void
1219 hns3_filterlist_flush(struct rte_eth_dev *dev)
1220 {
1221         struct hns3_process_private *process_list = dev->process_private;
1222         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1223         struct hns3_rss_conf_ele *rss_filter_ptr;
1224         struct hns3_flow_mem *flow_node;
1225
1226         fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1227         while (fdir_rule_ptr) {
1228                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1229                 rte_free(fdir_rule_ptr);
1230                 fdir_rule_ptr = TAILQ_FIRST(&process_list->fdir_list);
1231         }
1232
1233         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1234         while (rss_filter_ptr) {
1235                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1236                              entries);
1237                 rte_free(rss_filter_ptr);
1238                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1239         }
1240
1241         flow_node = TAILQ_FIRST(&process_list->flow_list);
1242         while (flow_node) {
1243                 TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1244                 rte_free(flow_node->flow);
1245                 rte_free(flow_node);
1246                 flow_node = TAILQ_FIRST(&process_list->flow_list);
1247         }
1248 }
1249
1250 static bool
1251 hns3_action_rss_same(const struct rte_flow_action_rss *comp,
1252                      const struct rte_flow_action_rss *with)
1253 {
1254         bool func_is_same;
1255
1256         /*
1257          * When user flush all RSS rule, RSS func is set invalid with
1258          * RTE_ETH_HASH_FUNCTION_MAX. Then the user create a flow after
1259          * flushed, any validate RSS func is different with it before
1260          * flushed. Others, when user create an action RSS with RSS func
1261          * specified RTE_ETH_HASH_FUNCTION_DEFAULT, the func is the same
1262          * between continuous RSS flow.
1263          */
1264         if (comp->func == RTE_ETH_HASH_FUNCTION_MAX)
1265                 func_is_same = false;
1266         else
1267                 func_is_same = (with->func ? (comp->func == with->func) : true);
1268
1269         return (func_is_same &&
1270                 comp->types == (with->types & HNS3_ETH_RSS_SUPPORT) &&
1271                 comp->level == with->level && comp->key_len == with->key_len &&
1272                 comp->queue_num == with->queue_num &&
1273                 !memcmp(comp->key, with->key, with->key_len) &&
1274                 !memcmp(comp->queue, with->queue,
1275                         sizeof(*with->queue) * with->queue_num));
1276 }
1277
1278 static int
1279 hns3_rss_conf_copy(struct hns3_rss_conf *out,
1280                    const struct rte_flow_action_rss *in)
1281 {
1282         if (in->key_len > RTE_DIM(out->key) ||
1283             in->queue_num > RTE_DIM(out->queue))
1284                 return -EINVAL;
1285         if (in->key == NULL && in->key_len)
1286                 return -EINVAL;
1287         out->conf = (struct rte_flow_action_rss) {
1288                 .func = in->func,
1289                 .level = in->level,
1290                 .types = in->types,
1291                 .key_len = in->key_len,
1292                 .queue_num = in->queue_num,
1293         };
1294         out->conf.queue = memcpy(out->queue, in->queue,
1295                                 sizeof(*in->queue) * in->queue_num);
1296         if (in->key)
1297                 out->conf.key = memcpy(out->key, in->key, in->key_len);
1298
1299         return 0;
1300 }
1301
1302 static bool
1303 hns3_rss_input_tuple_supported(struct hns3_hw *hw,
1304                                const struct rte_flow_action_rss *rss)
1305 {
1306         /*
1307          * For IP packet, it is not supported to use src/dst port fields to RSS
1308          * hash for the following packet types.
1309          * - IPV4 FRAG | IPV4 NONFRAG | IPV6 FRAG | IPV6 NONFRAG
1310          * Besides, for Kunpeng920, the NIC HW is not supported to use src/dst
1311          * port fields to RSS hash for IPV6 SCTP packet type. However, the
1312          * Kunpeng930 and future kunpeng series support to use src/dst port
1313          * fields to RSS hash for IPv6 SCTP packet type.
1314          */
1315         if (rss->types & (ETH_RSS_L4_DST_ONLY | ETH_RSS_L4_SRC_ONLY) &&
1316             (rss->types & ETH_RSS_IP ||
1317             (!hw->rss_info.ipv6_sctp_offload_supported &&
1318             rss->types & ETH_RSS_NONFRAG_IPV6_SCTP)))
1319                 return false;
1320
1321         return true;
1322 }
1323
1324 /*
1325  * This function is used to parse rss action validatation.
1326  */
1327 static int
1328 hns3_parse_rss_filter(struct rte_eth_dev *dev,
1329                       const struct rte_flow_action *actions,
1330                       struct rte_flow_error *error)
1331 {
1332         struct hns3_adapter *hns = dev->data->dev_private;
1333         struct hns3_hw *hw = &hns->hw;
1334         struct hns3_rss_conf *rss_conf = &hw->rss_info;
1335         const struct rte_flow_action_rss *rss;
1336         const struct rte_flow_action *act;
1337         uint32_t act_index = 0;
1338         uint16_t n;
1339
1340         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1341         rss = act->conf;
1342
1343         if (rss == NULL) {
1344                 return rte_flow_error_set(error, EINVAL,
1345                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1346                                           act, "no valid queues");
1347         }
1348
1349         if (rss->queue_num > RTE_DIM(rss_conf->queue))
1350                 return rte_flow_error_set(error, ENOTSUP,
1351                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1352                                           "queue number configured exceeds "
1353                                           "queue buffer size driver supported");
1354
1355         for (n = 0; n < rss->queue_num; n++) {
1356                 if (rss->queue[n] < hw->alloc_rss_size)
1357                         continue;
1358                 return rte_flow_error_set(error, EINVAL,
1359                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1360                                           "queue id must be less than queue number allocated to a TC");
1361         }
1362
1363         if (!(rss->types & HNS3_ETH_RSS_SUPPORT) && rss->types)
1364                 return rte_flow_error_set(error, EINVAL,
1365                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1366                                           act,
1367                                           "Flow types is unsupported by "
1368                                           "hns3's RSS");
1369         if (rss->func >= RTE_ETH_HASH_FUNCTION_MAX)
1370                 return rte_flow_error_set(error, ENOTSUP,
1371                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1372                                           "RSS hash func are not supported");
1373         if (rss->level)
1374                 return rte_flow_error_set(error, ENOTSUP,
1375                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1376                                           "a nonzero RSS encapsulation level is not supported");
1377         if (rss->key_len && rss->key_len != RTE_DIM(rss_conf->key))
1378                 return rte_flow_error_set(error, ENOTSUP,
1379                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF, act,
1380                                           "RSS hash key must be exactly 40 bytes");
1381
1382         if (!hns3_rss_input_tuple_supported(hw, rss))
1383                 return rte_flow_error_set(error, EINVAL,
1384                                           RTE_FLOW_ERROR_TYPE_ACTION_CONF,
1385                                           &rss->types,
1386                                           "input RSS types are not supported");
1387
1388         act_index++;
1389
1390         /* Check if the next not void action is END */
1391         NEXT_ITEM_OF_ACTION(act, actions, act_index);
1392         if (act->type != RTE_FLOW_ACTION_TYPE_END) {
1393                 memset(rss_conf, 0, sizeof(struct hns3_rss_conf));
1394                 return rte_flow_error_set(error, EINVAL,
1395                                           RTE_FLOW_ERROR_TYPE_ACTION,
1396                                           act, "Not supported action.");
1397         }
1398
1399         return 0;
1400 }
1401
1402 static int
1403 hns3_disable_rss(struct hns3_hw *hw)
1404 {
1405         int ret;
1406
1407         /* Redirected the redirection table to queue 0 */
1408         ret = hns3_rss_reset_indir_table(hw);
1409         if (ret)
1410                 return ret;
1411
1412         /* Disable RSS */
1413         hw->rss_info.conf.types = 0;
1414         hw->rss_dis_flag = true;
1415
1416         return 0;
1417 }
1418
1419 static void
1420 hns3_parse_rss_key(struct hns3_hw *hw, struct rte_flow_action_rss *rss_conf)
1421 {
1422         if (rss_conf->key == NULL || rss_conf->key_len < HNS3_RSS_KEY_SIZE) {
1423                 hns3_warn(hw, "Default RSS hash key to be set");
1424                 rss_conf->key = hns3_hash_key;
1425                 rss_conf->key_len = HNS3_RSS_KEY_SIZE;
1426         }
1427 }
1428
1429 static int
1430 hns3_parse_rss_algorithm(struct hns3_hw *hw, enum rte_eth_hash_function *func,
1431                          uint8_t *hash_algo)
1432 {
1433         enum rte_eth_hash_function algo_func = *func;
1434         switch (algo_func) {
1435         case RTE_ETH_HASH_FUNCTION_DEFAULT:
1436                 /* Keep *hash_algo as what it used to be */
1437                 algo_func = hw->rss_info.conf.func;
1438                 break;
1439         case RTE_ETH_HASH_FUNCTION_TOEPLITZ:
1440                 *hash_algo = HNS3_RSS_HASH_ALGO_TOEPLITZ;
1441                 break;
1442         case RTE_ETH_HASH_FUNCTION_SIMPLE_XOR:
1443                 *hash_algo = HNS3_RSS_HASH_ALGO_SIMPLE;
1444                 break;
1445         case RTE_ETH_HASH_FUNCTION_SYMMETRIC_TOEPLITZ:
1446                 *hash_algo = HNS3_RSS_HASH_ALGO_SYMMETRIC_TOEP;
1447                 break;
1448         default:
1449                 hns3_err(hw, "Invalid RSS algorithm configuration(%u)",
1450                          algo_func);
1451                 return -EINVAL;
1452         }
1453         *func = algo_func;
1454
1455         return 0;
1456 }
1457
1458 static int
1459 hns3_hw_rss_hash_set(struct hns3_hw *hw, struct rte_flow_action_rss *rss_config)
1460 {
1461         struct hns3_rss_tuple_cfg *tuple;
1462         int ret;
1463
1464         hns3_parse_rss_key(hw, rss_config);
1465
1466         ret = hns3_parse_rss_algorithm(hw, &rss_config->func,
1467                                        &hw->rss_info.hash_algo);
1468         if (ret)
1469                 return ret;
1470
1471         ret = hns3_rss_set_algo_key(hw, rss_config->key);
1472         if (ret)
1473                 return ret;
1474
1475         hw->rss_info.conf.func = rss_config->func;
1476
1477         tuple = &hw->rss_info.rss_tuple_sets;
1478         ret = hns3_set_rss_tuple_by_rss_hf(hw, tuple, rss_config->types);
1479         if (ret)
1480                 hns3_err(hw, "Update RSS tuples by rss hf failed %d", ret);
1481
1482         return ret;
1483 }
1484
1485 static int
1486 hns3_update_indir_table(struct rte_eth_dev *dev,
1487                         const struct rte_flow_action_rss *conf, uint16_t num)
1488 {
1489         struct hns3_adapter *hns = dev->data->dev_private;
1490         struct hns3_hw *hw = &hns->hw;
1491         uint16_t indir_tbl[HNS3_RSS_IND_TBL_SIZE];
1492         uint16_t j;
1493         uint32_t i;
1494
1495         /* Fill in redirection table */
1496         memcpy(indir_tbl, hw->rss_info.rss_indirection_tbl,
1497                sizeof(hw->rss_info.rss_indirection_tbl));
1498         for (i = 0, j = 0; i < HNS3_RSS_IND_TBL_SIZE; i++, j++) {
1499                 j %= num;
1500                 if (conf->queue[j] >= hw->alloc_rss_size) {
1501                         hns3_err(hw, "queue id(%u) set to redirection table "
1502                                  "exceeds queue number(%u) allocated to a TC.",
1503                                  conf->queue[j], hw->alloc_rss_size);
1504                         return -EINVAL;
1505                 }
1506                 indir_tbl[i] = conf->queue[j];
1507         }
1508
1509         return hns3_set_rss_indir_table(hw, indir_tbl, HNS3_RSS_IND_TBL_SIZE);
1510 }
1511
1512 static int
1513 hns3_config_rss_filter(struct rte_eth_dev *dev,
1514                        const struct hns3_rss_conf *conf, bool add)
1515 {
1516         struct hns3_process_private *process_list = dev->process_private;
1517         struct hns3_adapter *hns = dev->data->dev_private;
1518         struct hns3_rss_conf_ele *rss_filter_ptr;
1519         struct hns3_hw *hw = &hns->hw;
1520         struct hns3_rss_conf *rss_info;
1521         uint64_t flow_types;
1522         uint16_t num;
1523         int ret;
1524
1525         struct rte_flow_action_rss rss_flow_conf = {
1526                 .func = conf->conf.func,
1527                 .level = conf->conf.level,
1528                 .types = conf->conf.types,
1529                 .key_len = conf->conf.key_len,
1530                 .queue_num = conf->conf.queue_num,
1531                 .key = conf->conf.key_len ?
1532                     (void *)(uintptr_t)conf->conf.key : NULL,
1533                 .queue = conf->conf.queue,
1534         };
1535
1536         /* Filter the unsupported flow types */
1537         flow_types = conf->conf.types ?
1538                      rss_flow_conf.types & HNS3_ETH_RSS_SUPPORT :
1539                      hw->rss_info.conf.types;
1540         if (flow_types != rss_flow_conf.types)
1541                 hns3_warn(hw, "modified RSS types based on hardware support, "
1542                               "requested:%" PRIx64 " configured:%" PRIx64,
1543                           rss_flow_conf.types, flow_types);
1544         /* Update the useful flow types */
1545         rss_flow_conf.types = flow_types;
1546
1547         rss_info = &hw->rss_info;
1548         if (!add) {
1549                 if (!conf->valid)
1550                         return 0;
1551
1552                 ret = hns3_disable_rss(hw);
1553                 if (ret) {
1554                         hns3_err(hw, "RSS disable failed(%d)", ret);
1555                         return ret;
1556                 }
1557
1558                 if (rss_flow_conf.queue_num) {
1559                         /*
1560                          * Due the content of queue pointer have been reset to
1561                          * 0, the rss_info->conf.queue should be set to NULL
1562                          */
1563                         rss_info->conf.queue = NULL;
1564                         rss_info->conf.queue_num = 0;
1565                 }
1566
1567                 /* set RSS func invalid after flushed */
1568                 rss_info->conf.func = RTE_ETH_HASH_FUNCTION_MAX;
1569                 return 0;
1570         }
1571
1572         /* Set rx queues to use */
1573         num = RTE_MIN(dev->data->nb_rx_queues, rss_flow_conf.queue_num);
1574         if (rss_flow_conf.queue_num > num)
1575                 hns3_warn(hw, "Config queue numbers %u are beyond the scope of truncated",
1576                           rss_flow_conf.queue_num);
1577         hns3_info(hw, "Max of contiguous %u PF queues are configured", num);
1578
1579         rte_spinlock_lock(&hw->lock);
1580         if (num) {
1581                 ret = hns3_update_indir_table(dev, &rss_flow_conf, num);
1582                 if (ret)
1583                         goto rss_config_err;
1584         }
1585
1586         /* Set hash algorithm and flow types by the user's config */
1587         ret = hns3_hw_rss_hash_set(hw, &rss_flow_conf);
1588         if (ret)
1589                 goto rss_config_err;
1590
1591         ret = hns3_rss_conf_copy(rss_info, &rss_flow_conf);
1592         if (ret) {
1593                 hns3_err(hw, "RSS config init fail(%d)", ret);
1594                 goto rss_config_err;
1595         }
1596
1597         /*
1598          * When create a new RSS rule, the old rule will be overlaid and set
1599          * invalid.
1600          */
1601         TAILQ_FOREACH(rss_filter_ptr, &process_list->filter_rss_list, entries)
1602                 rss_filter_ptr->filter_info.valid = false;
1603
1604 rss_config_err:
1605         rte_spinlock_unlock(&hw->lock);
1606
1607         return ret;
1608 }
1609
1610 static int
1611 hns3_clear_rss_filter(struct rte_eth_dev *dev)
1612 {
1613         struct hns3_process_private *process_list = dev->process_private;
1614         struct hns3_adapter *hns = dev->data->dev_private;
1615         struct hns3_rss_conf_ele *rss_filter_ptr;
1616         struct hns3_hw *hw = &hns->hw;
1617         int rss_rule_succ_cnt = 0; /* count for success of clearing RSS rules */
1618         int rss_rule_fail_cnt = 0; /* count for failure of clearing RSS rules */
1619         int ret = 0;
1620
1621         rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1622         while (rss_filter_ptr) {
1623                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1624                              entries);
1625                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1626                                              false);
1627                 if (ret)
1628                         rss_rule_fail_cnt++;
1629                 else
1630                         rss_rule_succ_cnt++;
1631                 rte_free(rss_filter_ptr);
1632                 rss_filter_ptr = TAILQ_FIRST(&process_list->filter_rss_list);
1633         }
1634
1635         if (rss_rule_fail_cnt) {
1636                 hns3_err(hw, "fail to delete all RSS filters, success num = %d "
1637                              "fail num = %d", rss_rule_succ_cnt,
1638                              rss_rule_fail_cnt);
1639                 ret = -EIO;
1640         }
1641
1642         return ret;
1643 }
1644
1645 int
1646 hns3_restore_rss_filter(struct rte_eth_dev *dev)
1647 {
1648         struct hns3_adapter *hns = dev->data->dev_private;
1649         struct hns3_hw *hw = &hns->hw;
1650
1651         /* When user flush all rules, it doesn't need to restore RSS rule */
1652         if (hw->rss_info.conf.func == RTE_ETH_HASH_FUNCTION_MAX)
1653                 return 0;
1654
1655         return hns3_config_rss_filter(dev, &hw->rss_info, true);
1656 }
1657
1658 static int
1659 hns3_flow_parse_rss(struct rte_eth_dev *dev,
1660                     const struct hns3_rss_conf *conf, bool add)
1661 {
1662         struct hns3_adapter *hns = dev->data->dev_private;
1663         struct hns3_hw *hw = &hns->hw;
1664         bool ret;
1665
1666         ret = hns3_action_rss_same(&hw->rss_info.conf, &conf->conf);
1667         if (ret) {
1668                 hns3_err(hw, "Enter duplicate RSS configuration : %d", ret);
1669                 return -EINVAL;
1670         }
1671
1672         return hns3_config_rss_filter(dev, conf, add);
1673 }
1674
1675 static int
1676 hns3_flow_args_check(const struct rte_flow_attr *attr,
1677                      const struct rte_flow_item pattern[],
1678                      const struct rte_flow_action actions[],
1679                      struct rte_flow_error *error)
1680 {
1681         if (pattern == NULL)
1682                 return rte_flow_error_set(error, EINVAL,
1683                                           RTE_FLOW_ERROR_TYPE_ITEM_NUM,
1684                                           NULL, "NULL pattern.");
1685
1686         if (actions == NULL)
1687                 return rte_flow_error_set(error, EINVAL,
1688                                           RTE_FLOW_ERROR_TYPE_ACTION_NUM,
1689                                           NULL, "NULL action.");
1690
1691         if (attr == NULL)
1692                 return rte_flow_error_set(error, EINVAL,
1693                                           RTE_FLOW_ERROR_TYPE_ATTR,
1694                                           NULL, "NULL attribute.");
1695
1696         return hns3_check_attr(attr, error);
1697 }
1698
1699 /*
1700  * Check if the flow rule is supported by hns3.
1701  * It only checkes the format. Don't guarantee the rule can be programmed into
1702  * the HW. Because there can be no enough room for the rule.
1703  */
1704 static int
1705 hns3_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1706                    const struct rte_flow_item pattern[],
1707                    const struct rte_flow_action actions[],
1708                    struct rte_flow_error *error)
1709 {
1710         struct hns3_fdir_rule fdir_rule;
1711         int ret;
1712
1713         ret = hns3_flow_args_check(attr, pattern, actions, error);
1714         if (ret)
1715                 return ret;
1716
1717         if (hns3_find_rss_general_action(pattern, actions))
1718                 return hns3_parse_rss_filter(dev, actions, error);
1719
1720         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1721         return hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1722 }
1723
1724 /*
1725  * Create or destroy a flow rule.
1726  * Theorically one rule can match more than one filters.
1727  * We will let it use the filter which it hit first.
1728  * So, the sequence matters.
1729  */
1730 static struct rte_flow *
1731 hns3_flow_create(struct rte_eth_dev *dev, const struct rte_flow_attr *attr,
1732                  const struct rte_flow_item pattern[],
1733                  const struct rte_flow_action actions[],
1734                  struct rte_flow_error *error)
1735 {
1736         struct hns3_process_private *process_list = dev->process_private;
1737         struct hns3_adapter *hns = dev->data->dev_private;
1738         struct hns3_hw *hw = &hns->hw;
1739         const struct hns3_rss_conf *rss_conf;
1740         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1741         struct hns3_rss_conf_ele *rss_filter_ptr;
1742         struct hns3_flow_mem *flow_node;
1743         const struct rte_flow_action *act;
1744         struct rte_flow *flow;
1745         struct hns3_fdir_rule fdir_rule;
1746         int ret;
1747
1748         ret = hns3_flow_validate(dev, attr, pattern, actions, error);
1749         if (ret)
1750                 return NULL;
1751
1752         flow = rte_zmalloc("hns3 flow", sizeof(struct rte_flow), 0);
1753         if (flow == NULL) {
1754                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1755                                    NULL, "Failed to allocate flow memory");
1756                 return NULL;
1757         }
1758         flow_node = rte_zmalloc("hns3 flow node",
1759                                 sizeof(struct hns3_flow_mem), 0);
1760         if (flow_node == NULL) {
1761                 rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
1762                                    NULL, "Failed to allocate flow list memory");
1763                 rte_free(flow);
1764                 return NULL;
1765         }
1766
1767         flow_node->flow = flow;
1768         TAILQ_INSERT_TAIL(&process_list->flow_list, flow_node, entries);
1769
1770         act = hns3_find_rss_general_action(pattern, actions);
1771         if (act) {
1772                 rss_conf = act->conf;
1773
1774                 ret = hns3_flow_parse_rss(dev, rss_conf, true);
1775                 if (ret)
1776                         goto err;
1777
1778                 rss_filter_ptr = rte_zmalloc("hns3 rss filter",
1779                                              sizeof(struct hns3_rss_conf_ele),
1780                                              0);
1781                 if (rss_filter_ptr == NULL) {
1782                         hns3_err(hw,
1783                                     "Failed to allocate hns3_rss_filter memory");
1784                         ret = -ENOMEM;
1785                         goto err;
1786                 }
1787                 hns3_rss_conf_copy(&rss_filter_ptr->filter_info,
1788                                    &rss_conf->conf);
1789                 rss_filter_ptr->filter_info.valid = true;
1790                 TAILQ_INSERT_TAIL(&process_list->filter_rss_list,
1791                                   rss_filter_ptr, entries);
1792
1793                 flow->rule = rss_filter_ptr;
1794                 flow->filter_type = RTE_ETH_FILTER_HASH;
1795                 return flow;
1796         }
1797
1798         memset(&fdir_rule, 0, sizeof(struct hns3_fdir_rule));
1799         ret = hns3_parse_fdir_filter(dev, pattern, actions, &fdir_rule, error);
1800         if (ret)
1801                 goto out;
1802
1803         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER) {
1804                 ret = hns3_counter_new(dev, fdir_rule.act_cnt.shared,
1805                                        fdir_rule.act_cnt.id, error);
1806                 if (ret)
1807                         goto out;
1808
1809                 flow->counter_id = fdir_rule.act_cnt.id;
1810         }
1811         ret = hns3_fdir_filter_program(hns, &fdir_rule, false);
1812         if (!ret) {
1813                 fdir_rule_ptr = rte_zmalloc("hns3 fdir rule",
1814                                             sizeof(struct hns3_fdir_rule_ele),
1815                                             0);
1816                 if (fdir_rule_ptr == NULL) {
1817                         hns3_err(hw, "Failed to allocate fdir_rule memory");
1818                         ret = -ENOMEM;
1819                         goto err_fdir;
1820                 }
1821
1822                 memcpy(&fdir_rule_ptr->fdir_conf, &fdir_rule,
1823                         sizeof(struct hns3_fdir_rule));
1824                 TAILQ_INSERT_TAIL(&process_list->fdir_list,
1825                                   fdir_rule_ptr, entries);
1826                 flow->rule = fdir_rule_ptr;
1827                 flow->filter_type = RTE_ETH_FILTER_FDIR;
1828
1829                 return flow;
1830         }
1831
1832 err_fdir:
1833         if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1834                 hns3_counter_release(dev, fdir_rule.act_cnt.id);
1835
1836 err:
1837         rte_flow_error_set(error, -ret, RTE_FLOW_ERROR_TYPE_HANDLE, NULL,
1838                            "Failed to create flow");
1839 out:
1840         TAILQ_REMOVE(&process_list->flow_list, flow_node, entries);
1841         rte_free(flow_node);
1842         rte_free(flow);
1843         return NULL;
1844 }
1845
1846 /* Destroy a flow rule on hns3. */
1847 static int
1848 hns3_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
1849                   struct rte_flow_error *error)
1850 {
1851         struct hns3_process_private *process_list = dev->process_private;
1852         struct hns3_adapter *hns = dev->data->dev_private;
1853         struct hns3_fdir_rule_ele *fdir_rule_ptr;
1854         struct hns3_rss_conf_ele *rss_filter_ptr;
1855         struct hns3_flow_mem *flow_node;
1856         enum rte_filter_type filter_type;
1857         struct hns3_fdir_rule fdir_rule;
1858         int ret;
1859
1860         if (flow == NULL)
1861                 return rte_flow_error_set(error, EINVAL,
1862                                           RTE_FLOW_ERROR_TYPE_HANDLE,
1863                                           flow, "Flow is NULL");
1864         filter_type = flow->filter_type;
1865         switch (filter_type) {
1866         case RTE_ETH_FILTER_FDIR:
1867                 fdir_rule_ptr = (struct hns3_fdir_rule_ele *)flow->rule;
1868                 memcpy(&fdir_rule, &fdir_rule_ptr->fdir_conf,
1869                            sizeof(struct hns3_fdir_rule));
1870
1871                 ret = hns3_fdir_filter_program(hns, &fdir_rule, true);
1872                 if (ret)
1873                         return rte_flow_error_set(error, EIO,
1874                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1875                                                   flow,
1876                                                   "Destroy FDIR fail.Try again");
1877                 if (fdir_rule.flags & HNS3_RULE_FLAG_COUNTER)
1878                         hns3_counter_release(dev, fdir_rule.act_cnt.id);
1879                 TAILQ_REMOVE(&process_list->fdir_list, fdir_rule_ptr, entries);
1880                 rte_free(fdir_rule_ptr);
1881                 fdir_rule_ptr = NULL;
1882                 break;
1883         case RTE_ETH_FILTER_HASH:
1884                 rss_filter_ptr = (struct hns3_rss_conf_ele *)flow->rule;
1885                 ret = hns3_config_rss_filter(dev, &rss_filter_ptr->filter_info,
1886                                              false);
1887                 if (ret)
1888                         return rte_flow_error_set(error, EIO,
1889                                                   RTE_FLOW_ERROR_TYPE_HANDLE,
1890                                                   flow,
1891                                                   "Destroy RSS fail.Try again");
1892                 TAILQ_REMOVE(&process_list->filter_rss_list, rss_filter_ptr,
1893                              entries);
1894                 rte_free(rss_filter_ptr);
1895                 rss_filter_ptr = NULL;
1896                 break;
1897         default:
1898                 return rte_flow_error_set(error, EINVAL,
1899                                           RTE_FLOW_ERROR_TYPE_HANDLE, flow,
1900                                           "Unsupported filter type");
1901         }
1902
1903         TAILQ_FOREACH(flow_node, &process_list->flow_list, entries) {
1904                 if (flow_node->flow == flow) {
1905                         TAILQ_REMOVE(&process_list->flow_list, flow_node,
1906                                      entries);
1907                         rte_free(flow_node);
1908                         flow_node = NULL;
1909                         break;
1910                 }
1911         }
1912         rte_free(flow);
1913         flow = NULL;
1914
1915         return 0;
1916 }
1917
1918 /*  Destroy all flow rules associated with a port on hns3. */
1919 static int
1920 hns3_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
1921 {
1922         struct hns3_adapter *hns = dev->data->dev_private;
1923         int ret;
1924
1925         /* FDIR is available only in PF driver */
1926         if (!hns->is_vf) {
1927                 ret = hns3_clear_all_fdir_filter(hns);
1928                 if (ret) {
1929                         rte_flow_error_set(error, ret,
1930                                            RTE_FLOW_ERROR_TYPE_HANDLE,
1931                                            NULL, "Failed to flush rule");
1932                         return ret;
1933                 }
1934                 hns3_counter_flush(dev);
1935         }
1936
1937         ret = hns3_clear_rss_filter(dev);
1938         if (ret) {
1939                 rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
1940                                    NULL, "Failed to flush rss filter");
1941                 return ret;
1942         }
1943
1944         hns3_filterlist_flush(dev);
1945
1946         return 0;
1947 }
1948
1949 /* Query an existing flow rule. */
1950 static int
1951 hns3_flow_query(struct rte_eth_dev *dev, struct rte_flow *flow,
1952                 const struct rte_flow_action *actions, void *data,
1953                 struct rte_flow_error *error)
1954 {
1955         struct rte_flow_action_rss *rss_conf;
1956         struct hns3_rss_conf_ele *rss_rule;
1957         struct rte_flow_query_count *qc;
1958         int ret;
1959
1960         if (!flow->rule)
1961                 return rte_flow_error_set(error, EINVAL,
1962                         RTE_FLOW_ERROR_TYPE_HANDLE, NULL, "invalid rule");
1963
1964         for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
1965                 switch (actions->type) {
1966                 case RTE_FLOW_ACTION_TYPE_VOID:
1967                         break;
1968                 case RTE_FLOW_ACTION_TYPE_COUNT:
1969                         qc = (struct rte_flow_query_count *)data;
1970                         ret = hns3_counter_query(dev, flow, qc, error);
1971                         if (ret)
1972                                 return ret;
1973                         break;
1974                 case RTE_FLOW_ACTION_TYPE_RSS:
1975                         if (flow->filter_type != RTE_ETH_FILTER_HASH) {
1976                                 return rte_flow_error_set(error, ENOTSUP,
1977                                         RTE_FLOW_ERROR_TYPE_ACTION,
1978                                         actions, "action is not supported");
1979                         }
1980                         rss_conf = (struct rte_flow_action_rss *)data;
1981                         rss_rule = (struct hns3_rss_conf_ele *)flow->rule;
1982                         rte_memcpy(rss_conf, &rss_rule->filter_info.conf,
1983                                    sizeof(struct rte_flow_action_rss));
1984                         break;
1985                 default:
1986                         return rte_flow_error_set(error, ENOTSUP,
1987                                 RTE_FLOW_ERROR_TYPE_ACTION,
1988                                 actions, "action is not supported");
1989                 }
1990         }
1991
1992         return 0;
1993 }
1994
1995 static const struct rte_flow_ops hns3_flow_ops = {
1996         .validate = hns3_flow_validate,
1997         .create = hns3_flow_create,
1998         .destroy = hns3_flow_destroy,
1999         .flush = hns3_flow_flush,
2000         .query = hns3_flow_query,
2001         .isolate = NULL,
2002 };
2003
2004 /*
2005  * The entry of flow API.
2006  * @param dev
2007  *   Pointer to Ethernet device.
2008  * @return
2009  *   0 on success, a negative errno value otherwise is set.
2010  */
2011 int
2012 hns3_dev_filter_ctrl(struct rte_eth_dev *dev, enum rte_filter_type filter_type,
2013                      enum rte_filter_op filter_op, void *arg)
2014 {
2015         struct hns3_hw *hw;
2016         int ret = 0;
2017
2018         hw = HNS3_DEV_PRIVATE_TO_HW(dev->data->dev_private);
2019         switch (filter_type) {
2020         case RTE_ETH_FILTER_GENERIC:
2021                 if (filter_op != RTE_ETH_FILTER_GET)
2022                         return -EINVAL;
2023                 if (hw->adapter_state >= HNS3_NIC_CLOSED)
2024                         return -ENODEV;
2025                 *(const void **)arg = &hns3_flow_ops;
2026                 break;
2027         default:
2028                 hns3_err(hw, "Filter type (%d) not supported", filter_type);
2029                 ret = -EOPNOTSUPP;
2030                 break;
2031         }
2032
2033         return ret;
2034 }