1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright 2015 Intel Deutschland GmbH
4 * Copyright (C) 2022 Intel Corporation
6 #include <net/mac80211.h>
7 #include "ieee80211_i.h"
9 #include "driver-ops.h"
10 #include "debugfs_sta.h"
12 int drv_start(struct ieee80211_local *local)
18 if (WARN_ON(local->started))
21 trace_drv_start(local);
22 local->started = true;
25 ret = local->ops->start(&local->hw);
26 trace_drv_return_int(local, ret);
29 local->started = false;
34 void drv_stop(struct ieee80211_local *local)
38 if (WARN_ON(!local->started))
41 trace_drv_stop(local);
42 local->ops->stop(&local->hw);
43 trace_drv_return_void(local);
45 /* sync away all work on the tasklet before clearing started */
46 tasklet_disable(&local->tasklet);
47 tasklet_enable(&local->tasklet);
51 local->started = false;
54 int drv_add_interface(struct ieee80211_local *local,
55 struct ieee80211_sub_if_data *sdata)
61 if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
62 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
63 !ieee80211_hw_check(&local->hw, WANT_MONITOR_VIF) &&
64 !(sdata->u.mntr.flags & MONITOR_FLAG_ACTIVE))))
67 trace_drv_add_interface(local, sdata);
68 ret = local->ops->add_interface(&local->hw, &sdata->vif);
69 trace_drv_return_int(local, ret);
72 sdata->flags |= IEEE80211_SDATA_IN_DRIVER;
77 int drv_change_interface(struct ieee80211_local *local,
78 struct ieee80211_sub_if_data *sdata,
79 enum nl80211_iftype type, bool p2p)
85 if (!check_sdata_in_driver(sdata))
88 trace_drv_change_interface(local, sdata, type, p2p);
89 ret = local->ops->change_interface(&local->hw, &sdata->vif, type, p2p);
90 trace_drv_return_int(local, ret);
94 void drv_remove_interface(struct ieee80211_local *local,
95 struct ieee80211_sub_if_data *sdata)
99 if (!check_sdata_in_driver(sdata))
102 trace_drv_remove_interface(local, sdata);
103 local->ops->remove_interface(&local->hw, &sdata->vif);
104 sdata->flags &= ~IEEE80211_SDATA_IN_DRIVER;
105 trace_drv_return_void(local);
109 int drv_sta_state(struct ieee80211_local *local,
110 struct ieee80211_sub_if_data *sdata,
111 struct sta_info *sta,
112 enum ieee80211_sta_state old_state,
113 enum ieee80211_sta_state new_state)
119 sdata = get_bss_sdata(sdata);
120 if (!check_sdata_in_driver(sdata))
123 trace_drv_sta_state(local, sdata, &sta->sta, old_state, new_state);
124 if (local->ops->sta_state) {
125 ret = local->ops->sta_state(&local->hw, &sdata->vif, &sta->sta,
126 old_state, new_state);
127 } else if (old_state == IEEE80211_STA_AUTH &&
128 new_state == IEEE80211_STA_ASSOC) {
129 ret = drv_sta_add(local, sdata, &sta->sta);
131 sta->uploaded = true;
132 if (rcu_access_pointer(sta->sta.rates))
133 drv_sta_rate_tbl_update(local, sdata, &sta->sta);
135 } else if (old_state == IEEE80211_STA_ASSOC &&
136 new_state == IEEE80211_STA_AUTH) {
137 drv_sta_remove(local, sdata, &sta->sta);
139 trace_drv_return_int(local, ret);
144 int drv_sta_set_txpwr(struct ieee80211_local *local,
145 struct ieee80211_sub_if_data *sdata,
146 struct sta_info *sta)
148 int ret = -EOPNOTSUPP;
152 sdata = get_bss_sdata(sdata);
153 if (!check_sdata_in_driver(sdata))
156 trace_drv_sta_set_txpwr(local, sdata, &sta->sta);
157 if (local->ops->sta_set_txpwr)
158 ret = local->ops->sta_set_txpwr(&local->hw, &sdata->vif,
160 trace_drv_return_int(local, ret);
164 void drv_sta_rc_update(struct ieee80211_local *local,
165 struct ieee80211_sub_if_data *sdata,
166 struct ieee80211_sta *sta, u32 changed)
168 sdata = get_bss_sdata(sdata);
169 if (!check_sdata_in_driver(sdata))
172 WARN_ON(changed & IEEE80211_RC_SUPP_RATES_CHANGED &&
173 (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
174 sdata->vif.type != NL80211_IFTYPE_MESH_POINT));
176 trace_drv_sta_rc_update(local, sdata, sta, changed);
177 if (local->ops->sta_rc_update)
178 local->ops->sta_rc_update(&local->hw, &sdata->vif,
181 trace_drv_return_void(local);
184 int drv_conf_tx(struct ieee80211_local *local,
185 struct ieee80211_link_data *link, u16 ac,
186 const struct ieee80211_tx_queue_params *params)
188 struct ieee80211_sub_if_data *sdata = link->sdata;
189 int ret = -EOPNOTSUPP;
193 if (!check_sdata_in_driver(sdata))
196 if (sdata->vif.active_links &&
197 !(sdata->vif.active_links & BIT(link->link_id)))
200 if (params->cw_min == 0 || params->cw_min > params->cw_max) {
202 * If we can't configure hardware anyway, don't warn. We may
203 * never have initialized the CW parameters.
205 WARN_ONCE(local->ops->conf_tx,
206 "%s: invalid CW_min/CW_max: %d/%d\n",
207 sdata->name, params->cw_min, params->cw_max);
211 trace_drv_conf_tx(local, sdata, link->link_id, ac, params);
212 if (local->ops->conf_tx)
213 ret = local->ops->conf_tx(&local->hw, &sdata->vif,
214 link->link_id, ac, params);
215 trace_drv_return_int(local, ret);
219 u64 drv_get_tsf(struct ieee80211_local *local,
220 struct ieee80211_sub_if_data *sdata)
226 if (!check_sdata_in_driver(sdata))
229 trace_drv_get_tsf(local, sdata);
230 if (local->ops->get_tsf)
231 ret = local->ops->get_tsf(&local->hw, &sdata->vif);
232 trace_drv_return_u64(local, ret);
236 void drv_set_tsf(struct ieee80211_local *local,
237 struct ieee80211_sub_if_data *sdata,
242 if (!check_sdata_in_driver(sdata))
245 trace_drv_set_tsf(local, sdata, tsf);
246 if (local->ops->set_tsf)
247 local->ops->set_tsf(&local->hw, &sdata->vif, tsf);
248 trace_drv_return_void(local);
251 void drv_offset_tsf(struct ieee80211_local *local,
252 struct ieee80211_sub_if_data *sdata,
257 if (!check_sdata_in_driver(sdata))
260 trace_drv_offset_tsf(local, sdata, offset);
261 if (local->ops->offset_tsf)
262 local->ops->offset_tsf(&local->hw, &sdata->vif, offset);
263 trace_drv_return_void(local);
266 void drv_reset_tsf(struct ieee80211_local *local,
267 struct ieee80211_sub_if_data *sdata)
271 if (!check_sdata_in_driver(sdata))
274 trace_drv_reset_tsf(local, sdata);
275 if (local->ops->reset_tsf)
276 local->ops->reset_tsf(&local->hw, &sdata->vif);
277 trace_drv_return_void(local);
280 int drv_assign_vif_chanctx(struct ieee80211_local *local,
281 struct ieee80211_sub_if_data *sdata,
282 struct ieee80211_bss_conf *link_conf,
283 struct ieee80211_chanctx *ctx)
287 drv_verify_link_exists(sdata, link_conf);
288 if (!check_sdata_in_driver(sdata))
291 if (sdata->vif.active_links &&
292 !(sdata->vif.active_links & BIT(link_conf->link_id)))
295 trace_drv_assign_vif_chanctx(local, sdata, link_conf, ctx);
296 if (local->ops->assign_vif_chanctx) {
297 WARN_ON_ONCE(!ctx->driver_present);
298 ret = local->ops->assign_vif_chanctx(&local->hw,
303 trace_drv_return_int(local, ret);
308 void drv_unassign_vif_chanctx(struct ieee80211_local *local,
309 struct ieee80211_sub_if_data *sdata,
310 struct ieee80211_bss_conf *link_conf,
311 struct ieee80211_chanctx *ctx)
315 drv_verify_link_exists(sdata, link_conf);
316 if (!check_sdata_in_driver(sdata))
319 if (sdata->vif.active_links &&
320 !(sdata->vif.active_links & BIT(link_conf->link_id)))
323 trace_drv_unassign_vif_chanctx(local, sdata, link_conf, ctx);
324 if (local->ops->unassign_vif_chanctx) {
325 WARN_ON_ONCE(!ctx->driver_present);
326 local->ops->unassign_vif_chanctx(&local->hw,
331 trace_drv_return_void(local);
334 int drv_switch_vif_chanctx(struct ieee80211_local *local,
335 struct ieee80211_vif_chanctx_switch *vifs,
336 int n_vifs, enum ieee80211_chanctx_switch_mode mode)
343 if (!local->ops->switch_vif_chanctx)
346 for (i = 0; i < n_vifs; i++) {
347 struct ieee80211_chanctx *new_ctx =
348 container_of(vifs[i].new_ctx,
349 struct ieee80211_chanctx,
351 struct ieee80211_chanctx *old_ctx =
352 container_of(vifs[i].old_ctx,
353 struct ieee80211_chanctx,
356 WARN_ON_ONCE(!old_ctx->driver_present);
357 WARN_ON_ONCE((mode == CHANCTX_SWMODE_SWAP_CONTEXTS &&
358 new_ctx->driver_present) ||
359 (mode == CHANCTX_SWMODE_REASSIGN_VIF &&
360 !new_ctx->driver_present));
363 trace_drv_switch_vif_chanctx(local, vifs, n_vifs, mode);
364 ret = local->ops->switch_vif_chanctx(&local->hw,
366 trace_drv_return_int(local, ret);
368 if (!ret && mode == CHANCTX_SWMODE_SWAP_CONTEXTS) {
369 for (i = 0; i < n_vifs; i++) {
370 struct ieee80211_chanctx *new_ctx =
371 container_of(vifs[i].new_ctx,
372 struct ieee80211_chanctx,
374 struct ieee80211_chanctx *old_ctx =
375 container_of(vifs[i].old_ctx,
376 struct ieee80211_chanctx,
379 new_ctx->driver_present = true;
380 old_ctx->driver_present = false;
387 int drv_ampdu_action(struct ieee80211_local *local,
388 struct ieee80211_sub_if_data *sdata,
389 struct ieee80211_ampdu_params *params)
391 int ret = -EOPNOTSUPP;
398 sdata = get_bss_sdata(sdata);
399 if (!check_sdata_in_driver(sdata))
402 trace_drv_ampdu_action(local, sdata, params);
404 if (local->ops->ampdu_action)
405 ret = local->ops->ampdu_action(&local->hw, &sdata->vif, params);
407 trace_drv_return_int(local, ret);
412 void drv_link_info_changed(struct ieee80211_local *local,
413 struct ieee80211_sub_if_data *sdata,
414 struct ieee80211_bss_conf *info,
415 int link_id, u64 changed)
419 if (WARN_ON_ONCE(changed & (BSS_CHANGED_BEACON |
420 BSS_CHANGED_BEACON_ENABLED) &&
421 sdata->vif.type != NL80211_IFTYPE_AP &&
422 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
423 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
424 sdata->vif.type != NL80211_IFTYPE_OCB))
427 if (WARN_ON_ONCE(sdata->vif.type == NL80211_IFTYPE_P2P_DEVICE ||
428 sdata->vif.type == NL80211_IFTYPE_NAN ||
429 (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
430 !sdata->vif.bss_conf.mu_mimo_owner &&
431 !(changed & BSS_CHANGED_TXPOWER))))
434 if (!check_sdata_in_driver(sdata))
437 if (sdata->vif.active_links &&
438 !(sdata->vif.active_links & BIT(link_id)))
441 trace_drv_link_info_changed(local, sdata, info, changed);
442 if (local->ops->link_info_changed)
443 local->ops->link_info_changed(&local->hw, &sdata->vif,
445 else if (local->ops->bss_info_changed)
446 local->ops->bss_info_changed(&local->hw, &sdata->vif,
448 trace_drv_return_void(local);
451 int drv_set_key(struct ieee80211_local *local,
452 enum set_key_cmd cmd,
453 struct ieee80211_sub_if_data *sdata,
454 struct ieee80211_sta *sta,
455 struct ieee80211_key_conf *key)
461 sdata = get_bss_sdata(sdata);
462 if (!check_sdata_in_driver(sdata))
465 if (WARN_ON(key->link_id >= 0 && sdata->vif.active_links &&
466 !(sdata->vif.active_links & BIT(key->link_id))))
469 trace_drv_set_key(local, cmd, sdata, sta, key);
470 ret = local->ops->set_key(&local->hw, cmd, &sdata->vif, sta, key);
471 trace_drv_return_int(local, ret);
475 int drv_change_vif_links(struct ieee80211_local *local,
476 struct ieee80211_sub_if_data *sdata,
477 u16 old_links, u16 new_links,
478 struct ieee80211_bss_conf *old[IEEE80211_MLD_MAX_NUM_LINKS])
480 int ret = -EOPNOTSUPP;
484 if (!check_sdata_in_driver(sdata))
487 if (old_links == new_links)
490 trace_drv_change_vif_links(local, sdata, old_links, new_links);
491 if (local->ops->change_vif_links)
492 ret = local->ops->change_vif_links(&local->hw, &sdata->vif,
493 old_links, new_links, old);
494 trace_drv_return_int(local, ret);
499 int drv_change_sta_links(struct ieee80211_local *local,
500 struct ieee80211_sub_if_data *sdata,
501 struct ieee80211_sta *sta,
502 u16 old_links, u16 new_links)
504 struct sta_info *info = container_of(sta, struct sta_info, sta);
505 struct link_sta_info *link_sta;
506 unsigned long links_to_add;
507 unsigned long links_to_rem;
508 unsigned int link_id;
509 int ret = -EOPNOTSUPP;
513 if (!check_sdata_in_driver(sdata))
516 old_links &= sdata->vif.active_links;
517 new_links &= sdata->vif.active_links;
519 if (old_links == new_links)
522 links_to_add = ~old_links & new_links;
523 links_to_rem = old_links & ~new_links;
525 for_each_set_bit(link_id, &links_to_rem, IEEE80211_MLD_MAX_NUM_LINKS) {
526 link_sta = rcu_dereference_protected(info->link[link_id],
527 lockdep_is_held(&local->sta_mtx));
529 ieee80211_link_sta_debugfs_drv_remove(link_sta);
532 trace_drv_change_sta_links(local, sdata, sta, old_links, new_links);
533 if (local->ops->change_sta_links)
534 ret = local->ops->change_sta_links(&local->hw, &sdata->vif, sta,
535 old_links, new_links);
536 trace_drv_return_int(local, ret);
541 for_each_set_bit(link_id, &links_to_add, IEEE80211_MLD_MAX_NUM_LINKS) {
542 link_sta = rcu_dereference_protected(info->link[link_id],
543 lockdep_is_held(&local->sta_mtx));
544 ieee80211_link_sta_debugfs_drv_add(link_sta);