net/mac80211/driver-ops.h

   1 #ifndef __MAC80211_DRIVER_OPS
   2 #define __MAC80211_DRIVER_OPS
   3
   4 #include <net/mac80211.h>
   5 #include "ieee80211_i.h"
   6 #include "trace.h"
   7
   8 static inline bool check_sdata_in_driver(struct ieee80211_sub_if_data *sdata)
   9 {
  10         return !WARN(!(sdata->flags & IEEE80211_SDATA_IN_DRIVER),
  11                      "%s:  Failed check-sdata-in-driver check, flags: 0x%x\n",
  12                      sdata->dev ? sdata->dev->name : sdata->name, sdata->flags);
  13 }
  14
  15 static inline struct ieee80211_sub_if_data *
  16 get_bss_sdata(struct ieee80211_sub_if_data *sdata)
  17 {
  18         if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
  19                 sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
  20                                      u.ap);
  21
  22         return sdata;
  23 }
  24
  25 static inline void drv_tx(struct ieee80211_local *local,
  26                           struct ieee80211_tx_control *control,
  27                           struct sk_buff *skb)
  28 {
  29         local->ops->tx(&local->hw, control, skb);
  30 }
  31
  32 static inline void drv_get_et_strings(struct ieee80211_sub_if_data *sdata,
  33                                       u32 sset, u8 *data)
  34 {
  35         struct ieee80211_local *local = sdata->local;
  36         if (local->ops->get_et_strings) {
  37                 trace_drv_get_et_strings(local, sset);
  38                 local->ops->get_et_strings(&local->hw, &sdata->vif, sset, data);
  39                 trace_drv_return_void(local);
  40         }
  41 }
  42
  43 static inline void drv_get_et_stats(struct ieee80211_sub_if_data *sdata,
  44                                     struct ethtool_stats *stats,
  45                                     u64 *data)
  46 {
  47         struct ieee80211_local *local = sdata->local;
  48         if (local->ops->get_et_stats) {
  49                 trace_drv_get_et_stats(local);
  50                 local->ops->get_et_stats(&local->hw, &sdata->vif, stats, data);
  51                 trace_drv_return_void(local);
  52         }
  53 }
  54
  55 static inline int drv_get_et_sset_count(struct ieee80211_sub_if_data *sdata,
  56                                         int sset)
  57 {
  58         struct ieee80211_local *local = sdata->local;
  59         int rv = 0;
  60         if (local->ops->get_et_sset_count) {
  61                 trace_drv_get_et_sset_count(local, sset);
  62                 rv = local->ops->get_et_sset_count(&local->hw, &sdata->vif,
  63                                                    sset);
  64                 trace_drv_return_int(local, rv);
  65         }
  66         return rv;
  67 }
  68
  69 static inline int drv_start(struct ieee80211_local *local)
  70 {
  71         int ret;
  72
  73         might_sleep();
  74
  75         trace_drv_start(local);
  76         local->started = true;
  77         smp_mb();
  78         ret = local->ops->start(&local->hw);
  79         trace_drv_return_int(local, ret);
  80         return ret;
  81 }
  82
  83 static inline void drv_stop(struct ieee80211_local *local)
  84 {
  85         might_sleep();
  86
  87         trace_drv_stop(local);
  88         local->ops->stop(&local->hw);
  89         trace_drv_return_void(local);
  90
  91         /* sync away all work on the tasklet before clearing started */
  92         tasklet_disable(&local->tasklet);
  93         tasklet_enable(&local->tasklet);
  94
  95         barrier();
  96
  97         local->started = false;
  98 }
  99
 100 #ifdef CONFIG_PM
 101 static inline int drv_suspend(struct ieee80211_local *local,
 102                               struct cfg80211_wowlan *wowlan)
 103 {
 104         int ret;
 105
 106         might_sleep();
 107
 108         trace_drv_suspend(local);
 109         ret = local->ops->suspend(&local->hw, wowlan);
 110         trace_drv_return_int(local, ret);
 111         return ret;
 112 }
 113
 114 static inline int drv_resume(struct ieee80211_local *local)
 115 {
 116         int ret;
 117
 118         might_sleep();
 119
 120         trace_drv_resume(local);
 121         ret = local->ops->resume(&local->hw);
 122         trace_drv_return_int(local, ret);
 123         return ret;
 124 }
 125
 126 static inline void drv_set_wakeup(struct ieee80211_local *local,
 127                                   bool enabled)
 128 {
 129         might_sleep();
 130
 131         if (!local->ops->set_wakeup)
 132                 return;
 133
 134         trace_drv_set_wakeup(local, enabled);
 135         local->ops->set_wakeup(&local->hw, enabled);
 136         trace_drv_return_void(local);
 137 }
 138 #endif
 139
 140 static inline int drv_add_interface(struct ieee80211_local *local,
 141                                     struct ieee80211_sub_if_data *sdata)
 142 {
 143         int ret;
 144
 145         might_sleep();
 146
 147         if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
 148                     (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
 149                      !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF) &&
 150                      !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))))
 151                 return -EINVAL;
 152
 153         trace_drv_add_interface(local, sdata);
 154         ret = local->ops->add_interface(&local->hw, &sdata->vif);
 155         trace_drv_return_int(local, ret);
 156
 157         if (ret == 0)
 158                 sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
 159
 160         return ret;
 161 }
 162
 163 static inline int drv_change_interface(struct ieee80211_local *local,
 164                                        struct ieee80211_sub_if_data *sdata,
 165                                        enum nl80211_iftype type, bool p2p)
 166 {
 167         int ret;
 168
 169         might_sleep();
 170
 171         if (!check_sdata_in_driver(sdata))
 172                 return -EIO;
 173
 174         trace_drv_change_interface(local, sdata, type, p2p);
 175         ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
 176         trace_drv_return_int(local, ret);
 177         return ret;
 178 }
 179
 180 static inline void drv_remove_interface(struct ieee80211_local *local,
 181                                         struct ieee80211_sub_if_data *sdata)
 182 {
 183         might_sleep();
 184
 185         if (!check_sdata_in_driver(sdata))
 186                 return;
 187
 188         trace_drv_remove_interface(local, sdata);
 189         local->ops->remove_interface(&local->hw, &sdata->vif);
 190         sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
 191         trace_drv_return_void(local);
 192 }
 193
 194 static inline int drv_config(struct ieee80211_local *local, u32 changed)
 195 {
 196         int ret;
 197
 198         might_sleep();
 199
 200         trace_drv_config(local, changed);
 201         ret = local->ops->config(&local->hw, changed);
 202         trace_drv_return_int(local, ret);
 203         return ret;
 204 }
 205
 206 static inline void drv_bss_info_changed(struct ieee80211_local *local,
 207                                         struct ieee80211_sub_if_data *sdata,
 208                                         struct ieee80211_bss_conf *info,
 209                                         u32 changed)
 210 {
 211         might_sleep();
 212
 213         if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON |
 214                                     BSS_CHANGED_BEACON_ENABLED) &&
 215                          sdata->vif.type != NL80211_IFTYPE_AP &&
 216                          sdata->vif.type != NL80211_IFTYPE_ADHOC &&
 217                          sdata->vif.type != NL80211_IFTYPE_MESH_POINT))
 218                 return;
 219
 220         if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
 221                          sdata->vif.type == NL80211_IFTYPE_MONITOR))
 222                 return;
 223
 224         if (!check_sdata_in_driver(sdata))
 225                 return;
 226
 227         trace_drv_bss_info_changed(local, sdata, info, changed);
 228         if (local->ops->bss_info_changed)
 229                 local->ops->bss_info_changed(&local->hw, &sdata->vif, info, changed);
 230         trace_drv_return_void(local);
 231 }
 232
 233 static inline u64 drv_prepare_multicast(struct ieee80211_local *local,
 234                                         struct netdev_hw_addr_list *mc_list)
 235 {
 236         u64 ret = 0;
 237
 238         trace_drv_prepare_multicast(local, mc_list->count);
 239
 240         if (local->ops->prepare_multicast)
 241                 ret = local->ops->prepare_multicast(&local->hw, mc_list);
 242
 243         trace_drv_return_u64(local, ret);
 244
 245         return ret;
 246 }
 247
 248 static inline void drv_configure_filter(struct ieee80211_local *local,
 249                                         unsigned int changed_flags,
 250                                         unsigned int *total_flags,
 251                                         u64 multicast)
 252 {
 253         might_sleep();
 254
 255         trace_drv_configure_filter(local, changed_flags, total_flags,
 256                                    multicast);
 257         local->ops->configure_filter(&local->hw, changed_flags, total_flags,
 258                                      multicast);
 259         trace_drv_return_void(local);
 260 }
 261
 262 static inline int drv_set_tim(struct ieee80211_local *local,
 263                               struct ieee80211_sta *sta, bool set)
 264 {
 265         int ret = 0;
 266         trace_drv_set_tim(local, sta, set);
 267         if (local->ops->set_tim)
 268                 ret = local->ops->set_tim(&local->hw, sta, set);
 269         trace_drv_return_int(local, ret);
 270         return ret;
 271 }
 272
 273 static inline int drv_set_key(struct ieee80211_local *local,
 274                               enum set_key_cmd cmd,
 275                               struct ieee80211_sub_if_data *sdata,
 276                               struct ieee80211_sta *sta,
 277                               struct ieee80211_key_conf *key)
 278 {
 279         int ret;
 280
 281         might_sleep();
 282
 283         sdata = get_bss_sdata(sdata);
 284         if (!check_sdata_in_driver(sdata))
 285                 return -EIO;
 286
 287         trace_drv_set_key(local, cmd, sdata, sta, key);
 288         ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key);
 289         trace_drv_return_int(local, ret);
 290         return ret;
 291 }
 292
 293 static inline void drv_update_tkip_key(struct ieee80211_local *local,
 294                                        struct ieee80211_sub_if_data *sdata,
 295                                        struct ieee80211_key_conf *conf,
 296                                        struct sta_info *sta, u32 iv32,
 297                                        u16 *phase1key)
 298 {
 299         struct ieee80211_sta *ista = NULL;
 300
 301         if (sta)
 302                 ista = &sta->sta;
 303
 304         sdata = get_bss_sdata(sdata);
 305         if (!check_sdata_in_driver(sdata))
 306                 return;
 307
 308         trace_drv_update_tkip_key(local, sdata, conf, ista, iv32);
 309         if (local->ops->update_tkip_key)
 310                 local->ops->update_tkip_key(&local->hw, &sdata->vif, conf,
 311                                             ista, iv32, phase1key);
 312         trace_drv_return_void(local);
 313 }
 314
 315 static inline int drv_hw_scan(struct ieee80211_local *local,
 316                               struct ieee80211_sub_if_data *sdata,
 317                               struct cfg80211_scan_request *req)
 318 {
 319         int ret;
 320
 321         might_sleep();
 322
 323         if (!check_sdata_in_driver(sdata))
 324                 return -EIO;
 325
 326         trace_drv_hw_scan(local, sdata);
 327         ret = local->ops->hw_scan(&local->hw, &sdata->vif, req);
 328         trace_drv_return_int(local, ret);
 329         return ret;
 330 }
 331
 332 static inline void drv_cancel_hw_scan(struct ieee80211_local *local,
 333                                       struct ieee80211_sub_if_data *sdata)
 334 {
 335         might_sleep();
 336
 337         if (!check_sdata_in_driver(sdata))
 338                 return;
 339
 340         trace_drv_cancel_hw_scan(local, sdata);
 341         local->ops->cancel_hw_scan(&local->hw, &sdata->vif);
 342         trace_drv_return_void(local);
 343 }
 344
 345 static inline int
 346 drv_sched_scan_start(struct ieee80211_local *local,
 347                      struct ieee80211_sub_if_data *sdata,
 348                      struct cfg80211_sched_scan_request *req,
 349                      struct ieee80211_sched_scan_ies *ies)
 350 {
 351         int ret;
 352
 353         might_sleep();
 354
 355         if (!check_sdata_in_driver(sdata))
 356                 return -EIO;
 357
 358         trace_drv_sched_scan_start(local, sdata);
 359         ret = local->ops->sched_scan_start(&local->hw, &sdata->vif,
 360                                               req, ies);
 361         trace_drv_return_int(local, ret);
 362         return ret;
 363 }
 364
 365 static inline int drv_sched_scan_stop(struct ieee80211_local *local,
 366                                       struct ieee80211_sub_if_data *sdata)
 367 {
 368         int ret;
 369
 370         might_sleep();
 371
 372         if (!check_sdata_in_driver(sdata))
 373                 return -EIO;
 374
 375         trace_drv_sched_scan_stop(local, sdata);
 376         ret = local->ops->sched_scan_stop(&local->hw, &sdata->vif);
 377         trace_drv_return_int(local, ret);
 378
 379         return ret;
 380 }
 381
 382 static inline void drv_sw_scan_start(struct ieee80211_local *local)
 383 {
 384         might_sleep();
 385
 386         trace_drv_sw_scan_start(local);
 387         if (local->ops->sw_scan_start)
 388                 local->ops->sw_scan_start(&local->hw);
 389         trace_drv_return_void(local);
 390 }
 391
 392 static inline void drv_sw_scan_complete(struct ieee80211_local *local)
 393 {
 394         might_sleep();
 395
 396         trace_drv_sw_scan_complete(local);
 397         if (local->ops->sw_scan_complete)
 398                 local->ops->sw_scan_complete(&local->hw);
 399         trace_drv_return_void(local);
 400 }
 401
 402 static inline int drv_get_stats(struct ieee80211_local *local,
 403                                 struct ieee80211_low_level_stats *stats)
 404 {
 405         int ret = -EOPNOTSUPP;
 406
 407         might_sleep();
 408
 409         if (local->ops->get_stats)
 410                 ret = local->ops->get_stats(&local->hw, stats);
 411         trace_drv_get_stats(local, stats, ret);
 412
 413         return ret;
 414 }
 415
 416 static inline void drv_get_tkip_seq(struct ieee80211_local *local,
 417                                     u8 hw_key_idx, u32 *iv32, u16 *iv16)
 418 {
 419         if (local->ops->get_tkip_seq)
 420                 local->ops->get_tkip_seq(&local->hw, hw_key_idx, iv32, iv16);
 421         trace_drv_get_tkip_seq(local, hw_key_idx, iv32, iv16);
 422 }
 423
 424 static inline int drv_set_frag_threshold(struct ieee80211_local *local,
 425                                         u32 value)
 426 {
 427         int ret = 0;
 428
 429         might_sleep();
 430
 431         trace_drv_set_frag_threshold(local, value);
 432         if (local->ops->set_frag_threshold)
 433                 ret = local->ops->set_frag_threshold(&local->hw, value);
 434         trace_drv_return_int(local, ret);
 435         return ret;
 436 }
 437
 438 static inline int drv_set_rts_threshold(struct ieee80211_local *local,
 439                                         u32 value)
 440 {
 441         int ret = 0;
 442
 443         might_sleep();
 444
 445         trace_drv_set_rts_threshold(local, value);
 446         if (local->ops->set_rts_threshold)
 447                 ret = local->ops->set_rts_threshold(&local->hw, value);
 448         trace_drv_return_int(local, ret);
 449         return ret;
 450 }
 451
 452 static inline int drv_set_coverage_class(struct ieee80211_local *local,
 453                                          u8 value)
 454 {
 455         int ret = 0;
 456         might_sleep();
 457
 458         trace_drv_set_coverage_class(local, value);
 459         if (local->ops->set_coverage_class)
 460                 local->ops->set_coverage_class(&local->hw, value);
 461         else
 462                 ret = -EOPNOTSUPP;
 463
 464         trace_drv_return_int(local, ret);
 465         return ret;
 466 }
 467
 468 static inline void drv_sta_notify(struct ieee80211_local *local,
 469                                   struct ieee80211_sub_if_data *sdata,
 470                                   enum sta_notify_cmd cmd,
 471                                   struct ieee80211_sta *sta)
 472 {
 473         sdata = get_bss_sdata(sdata);
 474         if (!check_sdata_in_driver(sdata))
 475                 return;
 476
 477         trace_drv_sta_notify(local, sdata, cmd, sta);
 478         if (local->ops->sta_notify)
 479                 local->ops->sta_notify(&local->hw, &sdata->vif, cmd, sta);
 480         trace_drv_return_void(local);
 481 }
 482
 483 static inline int drv_sta_add(struct ieee80211_local *local,
 484                               struct ieee80211_sub_if_data *sdata,
 485                               struct ieee80211_sta *sta)
 486 {
 487         int ret = 0;
 488
 489         might_sleep();
 490
 491         sdata = get_bss_sdata(sdata);
 492         if (!check_sdata_in_driver(sdata))
 493                 return -EIO;
 494
 495         trace_drv_sta_add(local, sdata, sta);
 496         if (local->ops->sta_add)
 497                 ret = local->ops->sta_add(&local->hw, &sdata->vif, sta);
 498
 499         trace_drv_return_int(local, ret);
 500
 501         return ret;
 502 }
 503
 504 static inline void drv_sta_remove(struct ieee80211_local *local,
 505                                   struct ieee80211_sub_if_data *sdata,
 506                                   struct ieee80211_sta *sta)
 507 {
 508         might_sleep();
 509
 510         sdata = get_bss_sdata(sdata);
 511         if (!check_sdata_in_driver(sdata))
 512                 return;
 513
 514         trace_drv_sta_remove(local, sdata, sta);
 515         if (local->ops->sta_remove)
 516                 local->ops->sta_remove(&local->hw, &sdata->vif, sta);
 517
 518         trace_drv_return_void(local);
 519 }
 520
 521 #ifdef CONFIG_MAC80211_DEBUGFS
 522 static inline void drv_sta_add_debugfs(struct ieee80211_local *local,
 523                                        struct ieee80211_sub_if_data *sdata,
 524                                        struct ieee80211_sta *sta,
 525                                        struct dentry *dir)
 526 {
 527         might_sleep();
 528
 529         sdata = get_bss_sdata(sdata);
 530         if (!check_sdata_in_driver(sdata))
 531                 return;
 532
 533         if (local->ops->sta_add_debugfs)
 534                 local->ops->sta_add_debugfs(&local->hw, &sdata->vif,
 535                                             sta, dir);
 536 }
 537
 538 static inline void drv_sta_remove_debugfs(struct ieee80211_local *local,
 539                                           struct ieee80211_sub_if_data *sdata,
 540                                           struct ieee80211_sta *sta,
 541                                           struct dentry *dir)
 542 {
 543         might_sleep();
 544
 545         sdata = get_bss_sdata(sdata);
 546         check_sdata_in_driver(sdata);
 547
 548         if (local->ops->sta_remove_debugfs)
 549                 local->ops->sta_remove_debugfs(&local->hw, &sdata->vif,
 550                                                sta, dir);
 551 }
 552 #endif
 553
 554 static inline void drv_sta_pre_rcu_remove(struct ieee80211_local *local,
 555                                           struct ieee80211_sub_if_data *sdata,
 556                                           struct sta_info *sta)
 557 {
 558         might_sleep();
 559
 560         sdata = get_bss_sdata(sdata);
 561         if (!check_sdata_in_driver(sdata))
 562                 return;
 563
 564         trace_drv_sta_pre_rcu_remove(local, sdata, &sta->sta);
 565         if (local->ops->sta_pre_rcu_remove)
 566                 local->ops->sta_pre_rcu_remove(&local->hw, &sdata->vif,
 567                                                &sta->sta);
 568         trace_drv_return_void(local);
 569 }
 570
 571 static inline __must_check
 572 int drv_sta_state(struct ieee80211_local *local,
 573                   struct ieee80211_sub_if_data *sdata,
 574                   struct sta_info *sta,
 575                   enum ieee80211_sta_state old_state,
 576                   enum ieee80211_sta_state new_state)
 577 {
 578         int ret = 0;
 579
 580         might_sleep();
 581
 582         sdata = get_bss_sdata(sdata);
 583         if (!check_sdata_in_driver(sdata))
 584                 return -EIO;
 585
 586         trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
 587         if (local->ops->sta_state) {
 588                 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
 589                                             old_state, new_state);
 590         } else if (old_state == IEEE80211_STA_AUTH &&
 591                    new_state == IEEE80211_STA_ASSOC) {
 592                 ret = drv_sta_add(local, sdata, &sta->sta);
 593                 if (ret == 0)
 594                         sta->uploaded = true;
 595         } else if (old_state == IEEE80211_STA_ASSOC &&
 596                    new_state == IEEE80211_STA_AUTH) {
 597                 drv_sta_remove(local, sdata, &sta->sta);
 598         }
 599         trace_drv_return_int(local, ret);
 600         return ret;
 601 }
 602
 603 static inline void drv_sta_rc_update(struct ieee80211_local *local,
 604                                      struct ieee80211_sub_if_data *sdata,
 605                                      struct ieee80211_sta *sta, u32 changed)
 606 {
 607         sdata = get_bss_sdata(sdata);
 608         if (!check_sdata_in_driver(sdata))
 609                 return;
 610
 611         WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
 612                 (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
 613                  sdata->vif.type != NL80211_IFTYPE_MESH_POINT));
 614
 615         trace_drv_sta_rc_update(local, sdata, sta, changed);
 616         if (local->ops->sta_rc_update)
 617                 local->ops->sta_rc_update(&local->hw, &sdata->vif,
 618                                           sta, changed);
 619
 620         trace_drv_return_void(local);
 621 }
 622
 623 static inline int drv_conf_tx(struct ieee80211_local *local,
 624                               struct ieee80211_sub_if_data *sdata, u16 ac,
 625                               const struct ieee80211_tx_queue_params *params)
 626 {
 627         int ret = -EOPNOTSUPP;
 628
 629         might_sleep();
 630
 631         if (!check_sdata_in_driver(sdata))
 632                 return -EIO;
 633
 634         trace_drv_conf_tx(local, sdata, ac, params);
 635         if (local->ops->conf_tx)
 636                 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
 637                                           ac, params);
 638         trace_drv_return_int(local, ret);
 639         return ret;
 640 }
 641
 642 static inline u64 drv_get_tsf(struct ieee80211_local *local,
 643                               struct ieee80211_sub_if_data *sdata)
 644 {
 645         u64 ret = -1ULL;
 646
 647         might_sleep();
 648
 649         if (!check_sdata_in_driver(sdata))
 650                 return ret;
 651
 652         trace_drv_get_tsf(local, sdata);
 653         if (local->ops->get_tsf)
 654                 ret = local->ops->get_tsf(&local->hw, &sdata->vif);
 655         trace_drv_return_u64(local, ret);
 656         return ret;
 657 }
 658
 659 static inline void drv_set_tsf(struct ieee80211_local *local,
 660                                struct ieee80211_sub_if_data *sdata,
 661                                u64 tsf)
 662 {
 663         might_sleep();
 664
 665         if (!check_sdata_in_driver(sdata))
 666                 return;
 667
 668         trace_drv_set_tsf(local, sdata, tsf);
 669         if (local->ops->set_tsf)
 670                 local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
 671         trace_drv_return_void(local);
 672 }
 673
 674 static inline void drv_reset_tsf(struct ieee80211_local *local,
 675                                  struct ieee80211_sub_if_data *sdata)
 676 {
 677         might_sleep();
 678
 679         if (!check_sdata_in_driver(sdata))
 680                 return;
 681
 682         trace_drv_reset_tsf(local, sdata);
 683         if (local->ops->reset_tsf)
 684                 local->ops->reset_tsf(&local->hw, &sdata->vif);
 685         trace_drv_return_void(local);
 686 }
 687
 688 static inline int drv_tx_last_beacon(struct ieee80211_local *local)
 689 {
 690         int ret = 0; /* default unsupported op for less congestion */
 691
 692         might_sleep();
 693
 694         trace_drv_tx_last_beacon(local);
 695         if (local->ops->tx_last_beacon)
 696                 ret = local->ops->tx_last_beacon(&local->hw);
 697         trace_drv_return_int(local, ret);
 698         return ret;
 699 }
 700
 701 static inline int drv_ampdu_action(struct ieee80211_local *local,
 702                                    struct ieee80211_sub_if_data *sdata,
 703                                    enum ieee80211_ampdu_mlme_action action,
 704                                    struct ieee80211_sta *sta, u16 tid,
 705                                    u16 *ssn, u8 buf_size)
 706 {
 707         int ret = -EOPNOTSUPP;
 708
 709         might_sleep();
 710
 711         sdata = get_bss_sdata(sdata);
 712         if (!check_sdata_in_driver(sdata))
 713                 return -EIO;
 714
 715         trace_drv_ampdu_action(local, sdata, action, sta, tid, ssn, buf_size);
 716
 717         if (local->ops->ampdu_action)
 718                 ret = local->ops->ampdu_action(&local->hw, &sdata->vif, action,
 719                                                sta, tid, ssn, buf_size);
 720
 721         trace_drv_return_int(local, ret);
 722
 723         return ret;
 724 }
 725
 726 static inline int drv_get_survey(struct ieee80211_local *local, int idx,
 727                                 struct survey_info *survey)
 728 {
 729         int ret = -EOPNOTSUPP;
 730
 731         trace_drv_get_survey(local, idx, survey);
 732
 733         if (local->ops->get_survey)
 734                 ret = local->ops->get_survey(&local->hw, idx, survey);
 735
 736         trace_drv_return_int(local, ret);
 737
 738         return ret;
 739 }
 740
 741 static inline void drv_rfkill_poll(struct ieee80211_local *local)
 742 {
 743         might_sleep();
 744
 745         if (local->ops->rfkill_poll)
 746                 local->ops->rfkill_poll(&local->hw);
 747 }
 748
 749 static inline void drv_flush(struct ieee80211_local *local,
 750                              struct ieee80211_sub_if_data *sdata,
 751                              u32 queues, bool drop)
 752 {
 753         struct ieee80211_vif *vif = sdata ? &sdata->vif : NULL;
 754
 755         might_sleep();
 756
 757         if (sdata && !check_sdata_in_driver(sdata))
 758                 return;
 759
 760         trace_drv_flush(local, queues, drop);
 761         if (local->ops->flush)
 762                 local->ops->flush(&local->hw, vif, queues, drop);
 763         trace_drv_return_void(local);
 764 }
 765
 766 static inline void drv_channel_switch(struct ieee80211_local *local,
 767                                      struct ieee80211_channel_switch *ch_switch)
 768 {
 769         might_sleep();
 770
 771         trace_drv_channel_switch(local, ch_switch);
 772         local->ops->channel_switch(&local->hw, ch_switch);
 773         trace_drv_return_void(local);
 774 }
 775
 776
 777 static inline int drv_set_antenna(struct ieee80211_local *local,
 778                                   u32 tx_ant, u32 rx_ant)
 779 {
 780         int ret = -EOPNOTSUPP;
 781         might_sleep();
 782         if (local->ops->set_antenna)
 783                 ret = local->ops->set_antenna(&local->hw, tx_ant, rx_ant);
 784         trace_drv_set_antenna(local, tx_ant, rx_ant, ret);
 785         return ret;
 786 }
 787
 788 static inline int drv_get_antenna(struct ieee80211_local *local,
 789                                   u32 *tx_ant, u32 *rx_ant)
 790 {
 791         int ret = -EOPNOTSUPP;
 792         might_sleep();
 793         if (local->ops->get_antenna)
 794                 ret = local->ops->get_antenna(&local->hw, tx_ant, rx_ant);
 795         trace_drv_get_antenna(local, *tx_ant, *rx_ant, ret);
 796         return ret;
 797 }
 798
 799 static inline int drv_remain_on_channel(struct ieee80211_local *local,
 800                                         struct ieee80211_sub_if_data *sdata,
 801                                         struct ieee80211_channel *chan,
 802                                         unsigned int duration,
 803                                         enum ieee80211_roc_type type)
 804 {
 805         int ret;
 806
 807         might_sleep();
 808
 809         trace_drv_remain_on_channel(local, sdata, chan, duration, type);
 810         ret = local->ops->remain_on_channel(&local->hw, &sdata->vif,
 811                                             chan, duration, type);
 812         trace_drv_return_int(local, ret);
 813
 814         return ret;
 815 }
 816
 817 static inline int drv_cancel_remain_on_channel(struct ieee80211_local *local)
 818 {
 819         int ret;
 820
 821         might_sleep();
 822
 823         trace_drv_cancel_remain_on_channel(local);
 824         ret = local->ops->cancel_remain_on_channel(&local->hw);
 825         trace_drv_return_int(local, ret);
 826
 827         return ret;
 828 }
 829
 830 static inline int drv_set_ringparam(struct ieee80211_local *local,
 831                                     u32 tx, u32 rx)
 832 {
 833         int ret = -ENOTSUPP;
 834
 835         might_sleep();
 836
 837         trace_drv_set_ringparam(local, tx, rx);
 838         if (local->ops->set_ringparam)
 839                 ret = local->ops->set_ringparam(&local->hw, tx, rx);
 840         trace_drv_return_int(local, ret);
 841
 842         return ret;
 843 }
 844
 845 static inline void drv_get_ringparam(struct ieee80211_local *local,
 846                                      u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
 847 {
 848         might_sleep();
 849
 850         trace_drv_get_ringparam(local, tx, tx_max, rx, rx_max);
 851         if (local->ops->get_ringparam)
 852                 local->ops->get_ringparam(&local->hw, tx, tx_max, rx, rx_max);
 853         trace_drv_return_void(local);
 854 }
 855
 856 static inline bool drv_tx_frames_pending(struct ieee80211_local *local)
 857 {
 858         bool ret = false;
 859
 860         might_sleep();
 861
 862         trace_drv_tx_frames_pending(local);
 863         if (local->ops->tx_frames_pending)
 864                 ret = local->ops->tx_frames_pending(&local->hw);
 865         trace_drv_return_bool(local, ret);
 866
 867         return ret;
 868 }
 869
 870 static inline int drv_set_bitrate_mask(struct ieee80211_local *local,
 871                                        struct ieee80211_sub_if_data *sdata,
 872                                        const struct cfg80211_bitrate_mask *mask)
 873 {
 874         int ret = -EOPNOTSUPP;
 875
 876         might_sleep();
 877
 878         if (!check_sdata_in_driver(sdata))
 879                 return -EIO;
 880
 881         trace_drv_set_bitrate_mask(local, sdata, mask);
 882         if (local->ops->set_bitrate_mask)
 883                 ret = local->ops->set_bitrate_mask(&local->hw,
 884                                                    &sdata->vif, mask);
 885         trace_drv_return_int(local, ret);
 886
 887         return ret;
 888 }
 889
 890 static inline void drv_set_rekey_data(struct ieee80211_local *local,
 891                                       struct ieee80211_sub_if_data *sdata,
 892                                       struct cfg80211_gtk_rekey_data *data)
 893 {
 894         if (!check_sdata_in_driver(sdata))
 895                 return;
 896
 897         trace_drv_set_rekey_data(local, sdata, data);
 898         if (local->ops->set_rekey_data)
 899                 local->ops->set_rekey_data(&local->hw, &sdata->vif, data);
 900         trace_drv_return_void(local);
 901 }
 902
 903 static inline void drv_rssi_callback(struct ieee80211_local *local,
 904                                      struct ieee80211_sub_if_data *sdata,
 905                                      const enum ieee80211_rssi_event event)
 906 {
 907         trace_drv_rssi_callback(local, sdata, event);
 908         if (local->ops->rssi_callback)
 909                 local->ops->rssi_callback(&local->hw, &sdata->vif, event);
 910         trace_drv_return_void(local);
 911 }
 912
 913 static inline void
 914 drv_release_buffered_frames(struct ieee80211_local *local,
 915                             struct sta_info *sta, u16 tids, int num_frames,
 916                             enum ieee80211_frame_release_type reason,
 917                             bool more_data)
 918 {
 919         trace_drv_release_buffered_frames(local, &sta->sta, tids, num_frames,
 920                                           reason, more_data);
 921         if (local->ops->release_buffered_frames)
 922                 local->ops->release_buffered_frames(&local->hw, &sta->sta, tids,
 923                                                     num_frames, reason,
 924                                                     more_data);
 925         trace_drv_return_void(local);
 926 }
 927
 928 static inline void
 929 drv_allow_buffered_frames(struct ieee80211_local *local,
 930                           struct sta_info *sta, u16 tids, int num_frames,
 931                           enum ieee80211_frame_release_type reason,
 932                           bool more_data)
 933 {
 934         trace_drv_allow_buffered_frames(local, &sta->sta, tids, num_frames,
 935                                         reason, more_data);
 936         if (local->ops->allow_buffered_frames)
 937                 local->ops->allow_buffered_frames(&local->hw, &sta->sta,
 938                                                   tids, num_frames, reason,
 939                                                   more_data);
 940         trace_drv_return_void(local);
 941 }
 942
 943 static inline int drv_get_rssi(struct ieee80211_local *local,
 944                                 struct ieee80211_sub_if_data *sdata,
 945                                 struct ieee80211_sta *sta,
 946                                 s8 *rssi_dbm)
 947 {
 948         int ret;
 949
 950         might_sleep();
 951
 952         ret = local->ops->get_rssi(&local->hw, &sdata->vif, sta, rssi_dbm);
 953         trace_drv_get_rssi(local, sta, *rssi_dbm, ret);
 954
 955         return ret;
 956 }
 957
 958 static inline void drv_mgd_prepare_tx(struct ieee80211_local *local,
 959                                       struct ieee80211_sub_if_data *sdata)
 960 {
 961         might_sleep();
 962
 963         if (!check_sdata_in_driver(sdata))
 964                 return;
 965         WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION);
 966
 967         trace_drv_mgd_prepare_tx(local, sdata);
 968         if (local->ops->mgd_prepare_tx)
 969                 local->ops->mgd_prepare_tx(&local->hw, &sdata->vif);
 970         trace_drv_return_void(local);
 971 }
 972
 973 static inline int drv_add_chanctx(struct ieee80211_local *local,
 974                                   struct ieee80211_chanctx *ctx)
 975 {
 976         int ret = -EOPNOTSUPP;
 977
 978         trace_drv_add_chanctx(local, ctx);
 979         if (local->ops->add_chanctx)
 980                 ret = local->ops->add_chanctx(&local->hw, &ctx->conf);
 981         trace_drv_return_int(local, ret);
 982         if (!ret)
 983                 ctx->driver_present = true;
 984
 985         return ret;
 986 }
 987
 988 static inline void drv_remove_chanctx(struct ieee80211_local *local,
 989                                       struct ieee80211_chanctx *ctx)
 990 {
 991         if (WARN_ON(!ctx->driver_present))
 992                 return;
 993
 994         trace_drv_remove_chanctx(local, ctx);
 995         if (local->ops->remove_chanctx)
 996                 local->ops->remove_chanctx(&local->hw, &ctx->conf);
 997         trace_drv_return_void(local);
 998         ctx->driver_present = false;
 999 }
1000
1001 static inline void drv_change_chanctx(struct ieee80211_local *local,
1002                                       struct ieee80211_chanctx *ctx,
1003                                       u32 changed)
1004 {
1005         trace_drv_change_chanctx(local, ctx, changed);
1006         if (local->ops->change_chanctx) {
1007                 WARN_ON_ONCE(!ctx->driver_present);
1008                 local->ops->change_chanctx(&local->hw, &ctx->conf, changed);
1009         }
1010         trace_drv_return_void(local);
1011 }
1012
1013 static inline int drv_assign_vif_chanctx(struct ieee80211_local *local,
1014                                          struct ieee80211_sub_if_data *sdata,
1015                                          struct ieee80211_chanctx *ctx)
1016 {
1017         int ret = 0;
1018
1019         if (!check_sdata_in_driver(sdata))
1020                 return -EIO;
1021
1022         trace_drv_assign_vif_chanctx(local, sdata, ctx);
1023         if (local->ops->assign_vif_chanctx) {
1024                 WARN_ON_ONCE(!ctx->driver_present);
1025                 ret = local->ops->assign_vif_chanctx(&local->hw,
1026                                                      &sdata->vif,
1027                                                      &ctx->conf);
1028         }
1029         trace_drv_return_int(local, ret);
1030
1031         return ret;
1032 }
1033
1034 static inline void drv_unassign_vif_chanctx(struct ieee80211_local *local,
1035                                             struct ieee80211_sub_if_data *sdata,
1036                                             struct ieee80211_chanctx *ctx)
1037 {
1038         if (!check_sdata_in_driver(sdata))
1039                 return;
1040
1041         trace_drv_unassign_vif_chanctx(local, sdata, ctx);
1042         if (local->ops->unassign_vif_chanctx) {
1043                 WARN_ON_ONCE(!ctx->driver_present);
1044                 local->ops->unassign_vif_chanctx(&local->hw,
1045                                                  &sdata->vif,
1046                                                  &ctx->conf);
1047         }
1048         trace_drv_return_void(local);
1049 }
1050
1051 static inline int
1052 drv_switch_vif_chanctx(struct ieee80211_local *local,
1053                        struct ieee80211_vif_chanctx_switch *vifs,
1054                        int n_vifs,
1055                        enum ieee80211_chanctx_switch_mode mode)
1056 {
1057         int ret = 0;
1058         int i;
1059
1060         if (!local->ops->switch_vif_chanctx)
1061                 return -EOPNOTSUPP;
1062
1063         for (i = 0; i < n_vifs; i++) {
1064                 struct ieee80211_chanctx *new_ctx =
1065                         container_of(vifs[i].new_ctx,
1066                                      struct ieee80211_chanctx,
1067                                      conf);
1068                 struct ieee80211_chanctx *old_ctx =
1069                         container_of(vifs[i].old_ctx,
1070                                      struct ieee80211_chanctx,
1071                                      conf);
1072
1073                 WARN_ON_ONCE(!old_ctx->driver_present);
1074                 WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
1075                               new_ctx->driver_present) ||
1076                              (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
1077                               !new_ctx->driver_present));
1078         }
1079
1080         trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
1081         ret = local->ops->switch_vif_chanctx(&local->hw,
1082                                              vifs, n_vifs, mode);
1083         trace_drv_return_int(local, ret);
1084
1085         if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
1086                 for (i = 0; i < n_vifs; i++) {
1087                         struct ieee80211_chanctx *new_ctx =
1088                                 container_of(vifs[i].new_ctx,
1089                                              struct ieee80211_chanctx,
1090                                              conf);
1091                         struct ieee80211_chanctx *old_ctx =
1092                                 container_of(vifs[i].old_ctx,
1093                                              struct ieee80211_chanctx,
1094                                              conf);
1095
1096                         new_ctx->driver_present = true;
1097                         old_ctx->driver_present = false;
1098                 }
1099         }
1100
1101         return ret;
1102 }
1103
1104 static inline int drv_start_ap(struct ieee80211_local *local,
1105                                struct ieee80211_sub_if_data *sdata)
1106 {
1107         int ret = 0;
1108
1109         if (!check_sdata_in_driver(sdata))
1110                 return -EIO;
1111
1112         trace_drv_start_ap(local, sdata, &sdata->vif.bss_conf);
1113         if (local->ops->start_ap)
1114                 ret = local->ops->start_ap(&local->hw, &sdata->vif);
1115         trace_drv_return_int(local, ret);
1116         return ret;
1117 }
1118
1119 static inline void drv_stop_ap(struct ieee80211_local *local,
1120                                struct ieee80211_sub_if_data *sdata)
1121 {
1122         if (!check_sdata_in_driver(sdata))
1123                 return;
1124
1125         trace_drv_stop_ap(local, sdata);
1126         if (local->ops->stop_ap)
1127                 local->ops->stop_ap(&local->hw, &sdata->vif);
1128         trace_drv_return_void(local);
1129 }
1130
1131 static inline void drv_restart_complete(struct ieee80211_local *local)
1132 {
1133         might_sleep();
1134
1135         trace_drv_restart_complete(local);
1136         if (local->ops->restart_complete)
1137                 local->ops->restart_complete(&local->hw);
1138         trace_drv_return_void(local);
1139 }
1140
1141 static inline void
1142 drv_set_default_unicast_key(struct ieee80211_local *local,
1143                             struct ieee80211_sub_if_data *sdata,
1144                             int key_idx)
1145 {
1146         if (!check_sdata_in_driver(sdata))
1147                 return;
1148
1149         WARN_ON_ONCE(key_idx < -1 || key_idx > 3);
1150
1151         trace_drv_set_default_unicast_key(local, sdata, key_idx);
1152         if (local->ops->set_default_unicast_key)
1153                 local->ops->set_default_unicast_key(&local->hw, &sdata->vif,
1154                                                     key_idx);
1155         trace_drv_return_void(local);
1156 }
1157
1158 #if IS_ENABLED(CONFIG_IPV6)
1159 static inline void drv_ipv6_addr_change(struct ieee80211_local *local,
1160                                         struct ieee80211_sub_if_data *sdata,
1161                                         struct inet6_dev *idev)
1162 {
1163         trace_drv_ipv6_addr_change(local, sdata);
1164         if (local->ops->ipv6_addr_change)
1165                 local->ops->ipv6_addr_change(&local->hw, &sdata->vif, idev);
1166         trace_drv_return_void(local);
1167 }
1168 #endif
1169
1170 static inline void
1171 drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata,
1172                           struct cfg80211_chan_def *chandef)
1173 {
1174         struct ieee80211_local *local = sdata->local;
1175
1176         if (local->ops->channel_switch_beacon) {
1177                 trace_drv_channel_switch_beacon(local, sdata, chandef);
1178                 local->ops->channel_switch_beacon(&local->hw, &sdata->vif,
1179                                                   chandef);
1180         }
1181 }
1182
1183 static inline int drv_join_ibss(struct ieee80211_local *local,
1184                                 struct ieee80211_sub_if_data *sdata)
1185 {
1186         int ret = 0;
1187
1188         might_sleep();
1189         if (!check_sdata_in_driver(sdata))
1190                 return -EIO;
1191
1192         trace_drv_join_ibss(local, sdata, &sdata->vif.bss_conf);
1193         if (local->ops->join_ibss)
1194                 ret = local->ops->join_ibss(&local->hw, &sdata->vif);
1195         trace_drv_return_int(local, ret);
1196         return ret;
1197 }
1198
1199 static inline void drv_leave_ibss(struct ieee80211_local *local,
1200                                   struct ieee80211_sub_if_data *sdata)
1201 {
1202         might_sleep();
1203         if (!check_sdata_in_driver(sdata))
1204                 return;
1205
1206         trace_drv_leave_ibss(local, sdata);
1207         if (local->ops->leave_ibss)
1208                 local->ops->leave_ibss(&local->hw, &sdata->vif);
1209         trace_drv_return_void(local);
1210 }
1211
1212 static inline u32 drv_get_expected_throughput(struct ieee80211_local *local,
1213                                               struct ieee80211_sta *sta)
1214 {
1215         u32 ret = 0;
1216
1217         trace_drv_get_expected_throughput(sta);
1218         if (local->ops->get_expected_throughput)
1219                 ret = local->ops->get_expected_throughput(sta);
1220         trace_drv_return_u32(local, ret);
1221
1222         return ret;
1223 }
1224
1225 #endif /* __MAC80211_DRIVER_OPS */