blob: 5939af8523c2b268e911caa2a93e700211ae389e [file] [log] [blame]
Johannes Berg8ca151b2013-01-24 14:25:36 +01001/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
8 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
Emmanuel Grumbach410dc5a2013-02-18 09:22:28 +020025 * in the file called COPYING.
Johannes Berg8ca151b2013-01-24 14:25:36 +010026 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63#include <linux/kernel.h>
64#include <linux/slab.h>
65#include <linux/skbuff.h>
66#include <linux/netdevice.h>
67#include <linux/etherdevice.h>
68#include <net/mac80211.h>
69
70#include "iwl-op-mode.h"
71#include "iwl-io.h"
72#include "mvm.h"
73#include "sta.h"
74#include "time-event.h"
75#include "iwl-eeprom-parse.h"
76#include "fw-api-scan.h"
77#include "iwl-phy-db.h"
78
79static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
80 {
81 .max = 1,
82 .types = BIT(NL80211_IFTYPE_STATION) |
83 BIT(NL80211_IFTYPE_AP),
84 },
85 {
86 .max = 1,
87 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
88 BIT(NL80211_IFTYPE_P2P_GO),
89 },
90 {
91 .max = 1,
92 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
93 },
94};
95
96static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
97 {
98 .num_different_channels = 1,
99 .max_interfaces = 3,
100 .limits = iwl_mvm_limits,
101 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
102 },
103};
104
105int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
106{
107 struct ieee80211_hw *hw = mvm->hw;
108 int num_mac, ret;
109
110 /* Tell mac80211 our characteristics */
111 hw->flags = IEEE80211_HW_SIGNAL_DBM |
112 IEEE80211_HW_SPECTRUM_MGMT |
113 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
114 IEEE80211_HW_QUEUE_CONTROL |
115 IEEE80211_HW_WANT_MONITOR_VIF |
Johannes Berg8ca151b2013-01-24 14:25:36 +0100116 IEEE80211_HW_SUPPORTS_PS |
117 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
Johannes Bergd2931bb2013-02-05 18:10:04 +0100118 IEEE80211_HW_AMPDU_AGGREGATION |
119 IEEE80211_HW_TIMING_BEACON_ONLY;
Johannes Berg8ca151b2013-01-24 14:25:36 +0100120
121 hw->queues = IWL_FIRST_AMPDU_QUEUE;
122 hw->offchannel_tx_hw_queue = IWL_OFFCHANNEL_QUEUE;
123 hw->rate_control_algorithm = "iwl-mvm-rs";
124
125 /*
126 * Enable 11w if advertised by firmware and software crypto
127 * is not enabled (as the firmware will interpret some mgmt
128 * packets, so enabling it with software crypto isn't safe)
129 */
130 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
131 !iwlwifi_mod_params.sw_crypto)
132 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
133
134 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
135 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
136 hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
137
138 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
139 BIT(NL80211_IFTYPE_P2P_CLIENT) |
140 BIT(NL80211_IFTYPE_AP) |
141 BIT(NL80211_IFTYPE_P2P_GO) |
142 BIT(NL80211_IFTYPE_P2P_DEVICE);
143
144 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
145 WIPHY_FLAG_DISABLE_BEACON_HINTS |
146 WIPHY_FLAG_IBSS_RSN;
147
148 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
149 hw->wiphy->n_iface_combinations =
150 ARRAY_SIZE(iwl_mvm_iface_combinations);
151
152 hw->wiphy->max_remain_on_channel_duration = 500;
153 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
154
155 /* Extract MAC address */
156 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
157 hw->wiphy->addresses = mvm->addresses;
158 hw->wiphy->n_addresses = 1;
159 num_mac = mvm->nvm_data->n_hw_addrs;
160 if (num_mac > 1) {
161 memcpy(mvm->addresses[1].addr, mvm->addresses[0].addr,
162 ETH_ALEN);
163 mvm->addresses[1].addr[5]++;
164 hw->wiphy->n_addresses++;
165 }
166
167 /* we create the 802.11 header and a max-length SSID element */
168 hw->wiphy->max_scan_ie_len =
169 mvm->fw->ucode_capa.max_probe_length - 24 - 34;
170 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
171
172 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
173 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
174 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
175 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
176 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
177 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
178
179 hw->wiphy->hw_version = mvm->trans->hw_id;
180
181 if (iwlwifi_mod_params.power_save)
182 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
183 else
184 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
185
186 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
187 NL80211_FEATURE_P2P_GO_OPPPS;
188
189 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
190
191#ifdef CONFIG_PM_SLEEP
192 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
193 mvm->trans->ops->d3_suspend &&
194 mvm->trans->ops->d3_resume &&
195 device_can_wakeup(mvm->trans->dev)) {
196 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
197 WIPHY_WOWLAN_DISCONNECT |
198 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
199 WIPHY_WOWLAN_RFKILL_RELEASE;
200 if (!iwlwifi_mod_params.sw_crypto)
201 hw->wiphy->wowlan.flags |=
202 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
203 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
204 WIPHY_WOWLAN_4WAY_HANDSHAKE;
205
206 hw->wiphy->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
207 hw->wiphy->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
208 hw->wiphy->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
209 }
210#endif
211
212 ret = iwl_mvm_leds_init(mvm);
213 if (ret)
214 return ret;
215
216 return ieee80211_register_hw(mvm->hw);
217}
218
219static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
220 struct ieee80211_tx_control *control,
221 struct sk_buff *skb)
222{
223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
224
225 if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
226 IWL_DEBUG_DROP(mvm, "Dropping - RF KILL\n");
227 goto drop;
228 }
229
230 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_OFFCHANNEL_QUEUE &&
231 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
232 goto drop;
233
234 if (control->sta) {
235 if (iwl_mvm_tx_skb(mvm, skb, control->sta))
236 goto drop;
237 return;
238 }
239
240 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
241 goto drop;
242 return;
243 drop:
244 ieee80211_free_txskb(hw, skb);
245}
246
247static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
248 struct ieee80211_vif *vif,
249 enum ieee80211_ampdu_mlme_action action,
250 struct ieee80211_sta *sta, u16 tid,
251 u16 *ssn, u8 buf_size)
252{
253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
254 int ret;
255
256 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
257 sta->addr, tid, action);
258
259 if (!(mvm->nvm_data->sku_cap_11n_enable))
260 return -EACCES;
261
262 mutex_lock(&mvm->mutex);
263
264 switch (action) {
265 case IEEE80211_AMPDU_RX_START:
266 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
267 ret = -EINVAL;
268 break;
269 }
270 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
271 break;
272 case IEEE80211_AMPDU_RX_STOP:
273 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
274 break;
275 case IEEE80211_AMPDU_TX_START:
276 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
277 break;
278 case IEEE80211_AMPDU_TX_STOP_CONT:
279 case IEEE80211_AMPDU_TX_STOP_FLUSH:
280 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
281 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
282 break;
283 case IEEE80211_AMPDU_TX_OPERATIONAL:
284 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
285 break;
286 default:
287 WARN_ON_ONCE(1);
288 ret = -EINVAL;
289 break;
290 }
291 mutex_unlock(&mvm->mutex);
292
293 return ret;
294}
295
296static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
297 struct ieee80211_vif *vif)
298{
299 struct iwl_mvm *mvm = data;
300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
301
302 mvmvif->uploaded = false;
303 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
304
305 /* does this make sense at all? */
306 mvmvif->color++;
307
308 spin_lock_bh(&mvm->time_event_lock);
309 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
310 spin_unlock_bh(&mvm->time_event_lock);
311
312 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
313 mvmvif->phy_ctxt = NULL;
314}
315
316static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
317{
318 iwl_trans_stop_device(mvm->trans);
319 iwl_trans_stop_hw(mvm->trans, false);
320
321 mvm->scan_status = IWL_MVM_SCAN_NONE;
322
323 /* just in case one was running */
324 ieee80211_remain_on_channel_expired(mvm->hw);
325
326 ieee80211_iterate_active_interfaces_atomic(
327 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
328 iwl_mvm_cleanup_iterator, mvm);
329
330 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
331 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
332
333 ieee80211_wake_queues(mvm->hw);
334
335 mvm->vif_count = 0;
336}
337
338static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
339{
340 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
341 int ret;
342
343 mutex_lock(&mvm->mutex);
344
345 /* Clean up some internal and mac80211 state on restart */
346 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
347 iwl_mvm_restart_cleanup(mvm);
348
349 ret = iwl_mvm_up(mvm);
350 mutex_unlock(&mvm->mutex);
351
352 return ret;
353}
354
355static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
356{
357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
358 int ret;
359
360 mutex_lock(&mvm->mutex);
361
362 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
363 ret = iwl_mvm_update_quotas(mvm, NULL);
364 if (ret)
365 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
366 ret);
367
368 mutex_unlock(&mvm->mutex);
369}
370
371static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
372{
373 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
374
375 flush_work(&mvm->async_handlers_wk);
376
377 mutex_lock(&mvm->mutex);
378 /* async_handlers_wk is now blocked */
379
380 /*
381 * The work item could be running or queued if the
382 * ROC time event stops just as we get here.
383 */
384 cancel_work_sync(&mvm->roc_done_wk);
385
386 iwl_trans_stop_device(mvm->trans);
387 iwl_trans_stop_hw(mvm->trans, false);
388
389 iwl_mvm_async_handlers_purge(mvm);
390 /* async_handlers_list is empty and will stay empty: HW is stopped */
391
392 /* the fw is stopped, the aux sta is dead: clean up driver state */
393 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
394
395 mutex_unlock(&mvm->mutex);
396
397 /*
398 * The worker might have been waiting for the mutex, let it run and
399 * discover that its list is now empty.
400 */
401 cancel_work_sync(&mvm->async_handlers_wk);
402}
403
404static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac,
405 struct ieee80211_vif *vif)
406{
407 struct iwl_mvm *mvm = data;
408 int ret;
409
410 ret = iwl_mvm_power_disable(mvm, vif);
411 if (ret)
412 IWL_ERR(mvm, "failed to disable power management\n");
413}
414
415static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
416 struct ieee80211_vif *vif)
417{
418 struct iwl_mvm *mvm = data;
419
420 iwl_mvm_power_update_mode(mvm, vif);
421}
422
423static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
424 struct ieee80211_vif *vif)
425{
426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
428 int ret;
429
430 /*
431 * Not much to do here. The stack will not allow interface
432 * types or combinations that we didn't advertise, so we
433 * don't really have to check the types.
434 */
435
436 mutex_lock(&mvm->mutex);
437
438 /* Allocate resources for the MAC context, and add it the the fw */
439 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
440 if (ret)
441 goto out_unlock;
442
443 /*
444 * The AP binding flow can be done only after the beacon
445 * template is configured (which happens only in the mac80211
446 * start_ap() flow), and adding the broadcast station can happen
447 * only after the binding.
448 * In addition, since modifying the MAC before adding a bcast
449 * station is not allowed by the FW, delay the adding of MAC context to
450 * the point where we can also add the bcast station.
451 * In short: there's not much we can do at this point, other than
452 * allocating resources :)
453 */
454 if (vif->type == NL80211_IFTYPE_AP) {
455 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
456 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
457 qmask);
458 if (ret) {
459 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
460 goto out_release;
461 }
462
463 goto out_unlock;
464 }
465
466 /*
467 * TODO: remove this temporary code.
468 * Currently MVM FW supports power management only on single MAC.
469 * Iterate and disable PM on all active interfaces.
470 * Note: the method below does not count the new interface being added
471 * at this moment.
472 */
473 mvm->vif_count++;
474 if (mvm->vif_count > 1) {
475 IWL_DEBUG_MAC80211(mvm,
476 "Disable power on existing interfaces\n");
Emmanuel Grumbach5360cfb2013-02-11 15:56:01 +0200477 ieee80211_iterate_active_interfaces_atomic(
Johannes Berg8ca151b2013-01-24 14:25:36 +0100478 mvm->hw,
479 IEEE80211_IFACE_ITER_NORMAL,
480 iwl_mvm_pm_disable_iterator, mvm);
481 }
482
483 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
484 if (ret)
485 goto out_release;
486
487 /*
488 * Update power state on the new interface. Admittedly, based on
489 * mac80211 logics this power update will disable power management
490 */
491 iwl_mvm_power_update_mode(mvm, vif);
492
493 /*
494 * P2P_DEVICE interface does not have a channel context assigned to it,
495 * so a dedicated PHY context is allocated to it and the corresponding
496 * MAC context is bound to it at this stage.
497 */
498 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
499 struct ieee80211_channel *chan;
500 struct cfg80211_chan_def chandef;
501
502 mvmvif->phy_ctxt = &mvm->phy_ctxt_roc;
503
504 /*
505 * The channel used here isn't relevant as it's
506 * going to be overwritten as part of the ROC flow.
507 * For now use the first channel we have.
508 */
509 chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
510 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
511 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt,
512 &chandef, 1, 1);
513 if (ret)
514 goto out_remove_mac;
515
516 ret = iwl_mvm_binding_add_vif(mvm, vif);
517 if (ret)
518 goto out_remove_phy;
519
520 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
521 if (ret)
522 goto out_unbind;
523
524 /* Save a pointer to p2p device vif, so it can later be used to
525 * update the p2p device MAC when a GO is started/stopped */
526 mvm->p2p_device_vif = vif;
527 }
528
529 goto out_unlock;
530
531 out_unbind:
532 iwl_mvm_binding_remove_vif(mvm, vif);
533 out_remove_phy:
534 iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
535 out_remove_mac:
536 mvmvif->phy_ctxt = NULL;
537 iwl_mvm_mac_ctxt_remove(mvm, vif);
538 out_release:
539 /*
540 * TODO: remove this temporary code.
541 * Currently MVM FW supports power management only on single MAC.
542 * Check if only one additional interface remains after rereasing
543 * current one. Update power mode on the remaining interface.
544 */
545 mvm->vif_count--;
546 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
547 mvm->vif_count);
548 if (mvm->vif_count == 1) {
549 ieee80211_iterate_active_interfaces(
550 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
551 iwl_mvm_power_update_iterator, mvm);
552 }
553 iwl_mvm_mac_ctxt_release(mvm, vif);
554 out_unlock:
555 mutex_unlock(&mvm->mutex);
556
557 return ret;
558}
559
Johannes Berg38a12b52013-02-22 14:07:56 +0100560static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
561 struct ieee80211_vif *vif)
Johannes Berg8ca151b2013-01-24 14:25:36 +0100562{
Johannes Berg8ca151b2013-01-24 14:25:36 +0100563 u32 tfd_msk = 0, ac;
564
565 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
566 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
567 tfd_msk |= BIT(vif->hw_queue[ac]);
568
569 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
570 tfd_msk |= BIT(vif->cab_queue);
571
572 if (tfd_msk) {
573 mutex_lock(&mvm->mutex);
574 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
575 mutex_unlock(&mvm->mutex);
576 }
577
578 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
579 /*
580 * Flush the ROC worker which will flush the OFFCHANNEL queue.
581 * We assume here that all the packets sent to the OFFCHANNEL
582 * queue are sent in ROC session.
583 */
584 flush_work(&mvm->roc_done_wk);
585 } else {
586 /*
587 * By now, all the AC queues are empty. The AGG queues are
588 * empty too. We already got all the Tx responses for all the
589 * packets in the queues. The drain work can have been
590 * triggered. Flush it. This work item takes the mutex, so kill
591 * it before we take it.
592 */
593 flush_work(&mvm->sta_drained_wk);
594 }
Johannes Berg38a12b52013-02-22 14:07:56 +0100595}
596
597static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
598 struct ieee80211_vif *vif)
599{
600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
601 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
602
603 iwl_mvm_prepare_mac_removal(mvm, vif);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100604
605 mutex_lock(&mvm->mutex);
606
607 /*
608 * For AP/GO interface, the tear down of the resources allocated to the
Johannes Berg38a12b52013-02-22 14:07:56 +0100609 * interface is be handled as part of the stop_ap flow.
Johannes Berg8ca151b2013-01-24 14:25:36 +0100610 */
611 if (vif->type == NL80211_IFTYPE_AP) {
612 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
613 goto out_release;
614 }
615
616 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
617 mvm->p2p_device_vif = NULL;
618 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
619 iwl_mvm_binding_remove_vif(mvm, vif);
620 iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
621 mvmvif->phy_ctxt = NULL;
622 }
623
624 /*
625 * TODO: remove this temporary code.
626 * Currently MVM FW supports power management only on single MAC.
627 * Check if only one additional interface remains after removing
628 * current one. Update power mode on the remaining interface.
629 */
630 if (mvm->vif_count)
631 mvm->vif_count--;
632 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
633 mvm->vif_count);
634 if (mvm->vif_count == 1) {
635 ieee80211_iterate_active_interfaces(
636 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
637 iwl_mvm_power_update_iterator, mvm);
638 }
639
640 iwl_mvm_mac_ctxt_remove(mvm, vif);
641
642out_release:
643 iwl_mvm_mac_ctxt_release(mvm, vif);
644 mutex_unlock(&mvm->mutex);
645}
646
647static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
648{
649 return 0;
650}
651
652static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
653 unsigned int changed_flags,
654 unsigned int *total_flags,
655 u64 multicast)
656{
657 *total_flags = 0;
658}
659
660static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
661 struct ieee80211_vif *vif,
662 struct ieee80211_bss_conf *bss_conf,
663 u32 changes)
664{
665 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
666 int ret;
667
668 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
669 if (ret)
670 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
671
672 if (changes & BSS_CHANGED_ASSOC) {
673 if (bss_conf->assoc) {
674 /* add quota for this interface */
675 ret = iwl_mvm_update_quotas(mvm, vif);
676 if (ret) {
677 IWL_ERR(mvm, "failed to update quotas\n");
678 return;
679 }
Johannes Berg8ca151b2013-01-24 14:25:36 +0100680 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
681 /* remove AP station now that the MAC is unassoc */
682 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
683 if (ret)
684 IWL_ERR(mvm, "failed to remove AP station\n");
685 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
686 /* remove quota for this interface */
687 ret = iwl_mvm_update_quotas(mvm, NULL);
688 if (ret)
689 IWL_ERR(mvm, "failed to update quotas\n");
690 }
Johannes Berg210a5442013-01-24 23:48:23 +0100691 } else if (changes & BSS_CHANGED_DTIM_PERIOD) {
692 /*
693 * We received a beacon _after_ association so
694 * remove the session protection.
695 */
696 iwl_mvm_remove_time_event(mvm, mvmvif,
697 &mvmvif->time_event_data);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100698 } else if (changes & BSS_CHANGED_PS) {
699 /*
700 * TODO: remove this temporary code.
701 * Currently MVM FW supports power management only on single
702 * MAC. Avoid power mode update if more than one interface
703 * is active.
704 */
705 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
706 mvm->vif_count);
707 if (mvm->vif_count == 1) {
708 ret = iwl_mvm_power_update_mode(mvm, vif);
709 if (ret)
710 IWL_ERR(mvm, "failed to update power mode\n");
711 }
712 }
713}
714
715static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
716{
717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
718 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
719 int ret;
720
721 mutex_lock(&mvm->mutex);
722
723 /* Send the beacon template */
724 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
725 if (ret)
726 goto out_unlock;
727
728 /* Add the mac context */
729 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
730 if (ret)
731 goto out_unlock;
732
733 /* Perform the binding */
734 ret = iwl_mvm_binding_add_vif(mvm, vif);
735 if (ret)
736 goto out_remove;
737
738 mvmvif->ap_active = true;
739
740 /* Send the bcast station. At this stage the TBTT and DTIM time events
741 * are added and applied to the scheduler */
742 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
743 if (ret)
744 goto out_unbind;
745
746 ret = iwl_mvm_update_quotas(mvm, vif);
747 if (ret)
748 goto out_rm_bcast;
749
750 /* Need to update the P2P Device MAC */
751 if (vif->p2p && mvm->p2p_device_vif)
752 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
753
754 mutex_unlock(&mvm->mutex);
755 return 0;
756
757out_rm_bcast:
758 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
759out_unbind:
760 iwl_mvm_binding_remove_vif(mvm, vif);
761out_remove:
762 iwl_mvm_mac_ctxt_remove(mvm, vif);
763out_unlock:
764 mutex_unlock(&mvm->mutex);
765 return ret;
766}
767
768static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
769{
770 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
771 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
772
Johannes Berg38a12b52013-02-22 14:07:56 +0100773 iwl_mvm_prepare_mac_removal(mvm, vif);
774
Johannes Berg8ca151b2013-01-24 14:25:36 +0100775 mutex_lock(&mvm->mutex);
776
777 mvmvif->ap_active = false;
778
779 /* Need to update the P2P Device MAC */
780 if (vif->p2p && mvm->p2p_device_vif)
781 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
782
783 iwl_mvm_update_quotas(mvm, NULL);
784 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
785 iwl_mvm_binding_remove_vif(mvm, vif);
786 iwl_mvm_mac_ctxt_remove(mvm, vif);
787
788 mutex_unlock(&mvm->mutex);
789}
790
791static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm,
792 struct ieee80211_vif *vif,
793 struct ieee80211_bss_conf *bss_conf,
794 u32 changes)
795{
796 /* Need to send a new beacon template to the FW */
797 if (changes & BSS_CHANGED_BEACON) {
798 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
799 IWL_WARN(mvm, "Failed updating beacon data\n");
800 }
801}
802
803static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
804 struct ieee80211_vif *vif,
805 struct ieee80211_bss_conf *bss_conf,
806 u32 changes)
807{
808 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
809
810 mutex_lock(&mvm->mutex);
811
812 switch (vif->type) {
813 case NL80211_IFTYPE_STATION:
814 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
815 break;
816 case NL80211_IFTYPE_AP:
817 iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes);
818 break;
819 default:
820 /* shouldn't happen */
821 WARN_ON_ONCE(1);
822 }
823
824 mutex_unlock(&mvm->mutex);
825}
826
827static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
828 struct ieee80211_vif *vif,
829 struct cfg80211_scan_request *req)
830{
831 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
832 int ret;
833
834 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
835 return -EINVAL;
836
837 mutex_lock(&mvm->mutex);
838
839 if (mvm->scan_status == IWL_MVM_SCAN_NONE)
840 ret = iwl_mvm_scan_request(mvm, vif, req);
841 else
842 ret = -EBUSY;
843
844 mutex_unlock(&mvm->mutex);
845
846 return ret;
847}
848
849static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
850 struct ieee80211_vif *vif)
851{
852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
853
854 mutex_lock(&mvm->mutex);
855
856 iwl_mvm_cancel_scan(mvm);
857
858 mutex_unlock(&mvm->mutex);
859}
860
861static void
862iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
863 struct ieee80211_sta *sta, u16 tid,
864 int num_frames,
865 enum ieee80211_frame_release_type reason,
866 bool more_data)
867{
868 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100869
870 /* TODO: how do we tell the fw to send frames for a specific TID */
871
872 /*
873 * The fw will send EOSP notification when the last frame will be
874 * transmitted.
875 */
Johannes Berg9cc40712013-02-15 22:47:48 +0100876 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100877}
878
879static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
880 struct ieee80211_vif *vif,
881 enum sta_notify_cmd cmd,
882 struct ieee80211_sta *sta)
883{
884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
885 struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
886
887 switch (cmd) {
888 case STA_NOTIFY_SLEEP:
889 if (atomic_read(&mvmsta->pending_frames) > 0)
890 ieee80211_sta_block_awake(hw, sta, true);
891 /*
892 * The fw updates the STA to be asleep. Tx packets on the Tx
893 * queues to this station will not be transmitted. The fw will
894 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
895 */
896 break;
897 case STA_NOTIFY_AWAKE:
898 if (WARN_ON(mvmsta->sta_id == IWL_INVALID_STATION))
899 break;
Johannes Berg9cc40712013-02-15 22:47:48 +0100900 iwl_mvm_sta_modify_ps_wake(mvm, sta);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100901 break;
902 default:
903 break;
904 }
905}
906
907static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
908 struct ieee80211_vif *vif,
909 struct ieee80211_sta *sta,
910 enum ieee80211_sta_state old_state,
911 enum ieee80211_sta_state new_state)
912{
913 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
914 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
915 int ret;
916
917 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
918 sta->addr, old_state, new_state);
919
920 /* this would be a mac80211 bug ... but don't crash */
921 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
922 return -EINVAL;
923
924 /* if a STA is being removed, reuse its ID */
925 flush_work(&mvm->sta_drained_wk);
926
927 mutex_lock(&mvm->mutex);
928 if (old_state == IEEE80211_STA_NOTEXIST &&
929 new_state == IEEE80211_STA_NONE) {
930 ret = iwl_mvm_add_sta(mvm, vif, sta);
931 } else if (old_state == IEEE80211_STA_NONE &&
932 new_state == IEEE80211_STA_AUTH) {
933 ret = 0;
934 } else if (old_state == IEEE80211_STA_AUTH &&
935 new_state == IEEE80211_STA_ASSOC) {
Johannes Berg7a453972013-02-12 13:10:44 +0100936 ret = iwl_mvm_update_sta(mvm, vif, sta);
937 if (ret == 0)
938 iwl_mvm_rs_rate_init(mvm, sta,
939 mvmvif->phy_ctxt->channel->band);
Johannes Berg8ca151b2013-01-24 14:25:36 +0100940 } else if (old_state == IEEE80211_STA_ASSOC &&
941 new_state == IEEE80211_STA_AUTHORIZED) {
942 ret = 0;
943 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
944 new_state == IEEE80211_STA_ASSOC) {
945 ret = 0;
946 } else if (old_state == IEEE80211_STA_ASSOC &&
947 new_state == IEEE80211_STA_AUTH) {
948 ret = 0;
949 } else if (old_state == IEEE80211_STA_AUTH &&
950 new_state == IEEE80211_STA_NONE) {
951 ret = 0;
952 } else if (old_state == IEEE80211_STA_NONE &&
953 new_state == IEEE80211_STA_NOTEXIST) {
954 ret = iwl_mvm_rm_sta(mvm, vif, sta);
955 } else {
956 ret = -EIO;
957 }
958 mutex_unlock(&mvm->mutex);
959
960 return ret;
961}
962
963static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
964{
965 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
966
967 mvm->rts_threshold = value;
968
969 return 0;
970}
971
972static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
973 struct ieee80211_vif *vif, u16 ac,
974 const struct ieee80211_tx_queue_params *params)
975{
976 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
977 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
978
979 mvmvif->queue_params[ac] = *params;
980
981 /*
982 * No need to update right away, we'll get BSS_CHANGED_QOS
983 * The exception is P2P_DEVICE interface which needs immediate update.
984 */
985 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
986 int ret;
987
988 mutex_lock(&mvm->mutex);
989 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
990 mutex_unlock(&mvm->mutex);
991 return ret;
992 }
993 return 0;
994}
995
996static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
997 struct ieee80211_vif *vif)
998{
999 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1000 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1001 200 + vif->bss_conf.beacon_int);
1002 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1003 100 + vif->bss_conf.beacon_int);
1004
1005 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1006 return;
1007
1008 mutex_lock(&mvm->mutex);
1009 /* Try really hard to protect the session and hear a beacon */
1010 iwl_mvm_protect_session(mvm, vif, duration, min_duration);
1011 mutex_unlock(&mvm->mutex);
1012}
1013
1014static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1015 enum set_key_cmd cmd,
1016 struct ieee80211_vif *vif,
1017 struct ieee80211_sta *sta,
1018 struct ieee80211_key_conf *key)
1019{
1020 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1021 int ret;
1022
1023 if (iwlwifi_mod_params.sw_crypto) {
1024 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1025 return -EOPNOTSUPP;
1026 }
1027
1028 switch (key->cipher) {
1029 case WLAN_CIPHER_SUITE_TKIP:
1030 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1031 /* fall-through */
1032 case WLAN_CIPHER_SUITE_CCMP:
1033 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1034 break;
1035 case WLAN_CIPHER_SUITE_AES_CMAC:
1036 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1037 break;
1038 case WLAN_CIPHER_SUITE_WEP40:
1039 case WLAN_CIPHER_SUITE_WEP104:
1040 /*
1041 * Support for TX only, at least for now, so accept
1042 * the key and do nothing else. Then mac80211 will
1043 * pass it for TX but we don't have to use it for RX.
1044 */
1045 return 0;
1046 default:
1047 return -EOPNOTSUPP;
1048 }
1049
1050 mutex_lock(&mvm->mutex);
1051
1052 switch (cmd) {
1053 case SET_KEY:
1054 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1055 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1056 if (ret) {
1057 IWL_WARN(mvm, "set key failed\n");
1058 /*
1059 * can't add key for RX, but we don't need it
1060 * in the device for TX so still return 0
1061 */
1062 ret = 0;
1063 }
1064
1065 break;
1066 case DISABLE_KEY:
1067 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1068 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1069 break;
1070 default:
1071 ret = -EINVAL;
1072 }
1073
1074 mutex_unlock(&mvm->mutex);
1075 return ret;
1076}
1077
1078static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1079 struct ieee80211_vif *vif,
1080 struct ieee80211_key_conf *keyconf,
1081 struct ieee80211_sta *sta,
1082 u32 iv32, u16 *phase1key)
1083{
1084 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1085
1086 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1087}
1088
1089
1090static int iwl_mvm_roc(struct ieee80211_hw *hw,
1091 struct ieee80211_vif *vif,
1092 struct ieee80211_channel *channel,
1093 int duration)
1094{
1095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1096 struct cfg80211_chan_def chandef;
1097 int ret;
1098
1099 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1100 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1101 return -EINVAL;
1102 }
1103
1104 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d)\n", channel->hw_value,
1105 duration);
1106
1107 mutex_lock(&mvm->mutex);
1108
1109 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1110 ret = iwl_mvm_phy_ctxt_changed(mvm, &mvm->phy_ctxt_roc,
1111 &chandef, 1, 1);
1112
1113 /* Schedule the time events */
1114 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration);
1115
1116 mutex_unlock(&mvm->mutex);
1117 IWL_DEBUG_MAC80211(mvm, "leave\n");
1118
1119 return ret;
1120}
1121
1122static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1123{
1124 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1125
1126 IWL_DEBUG_MAC80211(mvm, "enter\n");
1127
1128 mutex_lock(&mvm->mutex);
1129 iwl_mvm_stop_p2p_roc(mvm);
1130 mutex_unlock(&mvm->mutex);
1131
1132 IWL_DEBUG_MAC80211(mvm, "leave\n");
1133 return 0;
1134}
1135
1136static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1137 struct ieee80211_chanctx_conf *ctx)
1138{
1139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1140 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1141 int ret;
1142
1143 mutex_lock(&mvm->mutex);
1144
1145 IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
1146 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def,
1147 ctx->rx_chains_static,
1148 ctx->rx_chains_dynamic);
1149 mutex_unlock(&mvm->mutex);
1150 return ret;
1151}
1152
1153static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
1154 struct ieee80211_chanctx_conf *ctx)
1155{
1156 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1157 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1158
1159 mutex_lock(&mvm->mutex);
1160 iwl_mvm_phy_ctxt_remove(mvm, phy_ctxt);
1161 mutex_unlock(&mvm->mutex);
1162}
1163
1164static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
1165 struct ieee80211_chanctx_conf *ctx,
1166 u32 changed)
1167{
1168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1169 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1170
1171 mutex_lock(&mvm->mutex);
1172 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1173 ctx->rx_chains_static,
1174 ctx->rx_chains_dynamic);
1175 mutex_unlock(&mvm->mutex);
1176}
1177
1178static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
1179 struct ieee80211_vif *vif,
1180 struct ieee80211_chanctx_conf *ctx)
1181{
1182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1183 struct iwl_mvm_phy_ctxt *phyctx = (void *)ctx->drv_priv;
1184 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1185 int ret;
1186
1187 mutex_lock(&mvm->mutex);
1188
1189 mvmvif->phy_ctxt = phyctx;
1190
1191 switch (vif->type) {
1192 case NL80211_IFTYPE_AP:
1193 /*
1194 * The AP binding flow is handled as part of the start_ap flow
1195 * (in bss_info_changed).
1196 */
1197 ret = 0;
1198 goto out_unlock;
1199 case NL80211_IFTYPE_STATION:
1200 case NL80211_IFTYPE_ADHOC:
1201 case NL80211_IFTYPE_MONITOR:
1202 break;
1203 default:
1204 ret = -EINVAL;
1205 goto out_unlock;
1206 }
1207
1208 ret = iwl_mvm_binding_add_vif(mvm, vif);
1209 if (ret)
1210 goto out_unlock;
1211
1212 /*
1213 * Setting the quota at this stage is only required for monitor
1214 * interfaces. For the other types, the bss_info changed flow
1215 * will handle quota settings.
1216 */
1217 if (vif->type == NL80211_IFTYPE_MONITOR) {
1218 ret = iwl_mvm_update_quotas(mvm, vif);
1219 if (ret)
1220 goto out_remove_binding;
1221 }
1222
1223 goto out_unlock;
1224
1225 out_remove_binding:
1226 iwl_mvm_binding_remove_vif(mvm, vif);
1227 out_unlock:
1228 mutex_unlock(&mvm->mutex);
1229 if (ret)
1230 mvmvif->phy_ctxt = NULL;
1231 return ret;
1232}
1233
1234static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
1235 struct ieee80211_vif *vif,
1236 struct ieee80211_chanctx_conf *ctx)
1237{
1238 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1239 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1240
1241 mutex_lock(&mvm->mutex);
1242
1243 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
1244
1245 if (vif->type == NL80211_IFTYPE_AP)
1246 goto out_unlock;
1247
1248 iwl_mvm_binding_remove_vif(mvm, vif);
1249 switch (vif->type) {
1250 case NL80211_IFTYPE_MONITOR:
1251 iwl_mvm_update_quotas(mvm, vif);
1252 break;
1253 default:
1254 break;
1255 }
1256
1257out_unlock:
1258 mvmvif->phy_ctxt = NULL;
1259 mutex_unlock(&mvm->mutex);
1260}
1261
1262static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
1263 struct ieee80211_sta *sta,
1264 bool set)
1265{
1266 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1267 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1268
1269 if (!mvm_sta || !mvm_sta->vif) {
1270 IWL_ERR(mvm, "Station is not associated to a vif\n");
1271 return -EINVAL;
1272 }
1273
1274 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
1275}
1276
1277struct ieee80211_ops iwl_mvm_hw_ops = {
1278 .tx = iwl_mvm_mac_tx,
1279 .ampdu_action = iwl_mvm_mac_ampdu_action,
1280 .start = iwl_mvm_mac_start,
1281 .restart_complete = iwl_mvm_mac_restart_complete,
1282 .stop = iwl_mvm_mac_stop,
1283 .add_interface = iwl_mvm_mac_add_interface,
1284 .remove_interface = iwl_mvm_mac_remove_interface,
1285 .config = iwl_mvm_mac_config,
1286 .configure_filter = iwl_mvm_configure_filter,
1287 .bss_info_changed = iwl_mvm_bss_info_changed,
1288 .hw_scan = iwl_mvm_mac_hw_scan,
1289 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1290 .sta_state = iwl_mvm_mac_sta_state,
1291 .sta_notify = iwl_mvm_mac_sta_notify,
1292 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
1293 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1294 .conf_tx = iwl_mvm_mac_conf_tx,
1295 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
1296 .set_key = iwl_mvm_mac_set_key,
1297 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
1298 .remain_on_channel = iwl_mvm_roc,
1299 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
1300
1301 .add_chanctx = iwl_mvm_add_chanctx,
1302 .remove_chanctx = iwl_mvm_remove_chanctx,
1303 .change_chanctx = iwl_mvm_change_chanctx,
1304 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
1305 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
1306
1307 .start_ap = iwl_mvm_start_ap,
1308 .stop_ap = iwl_mvm_stop_ap,
1309
1310 .set_tim = iwl_mvm_set_tim,
1311
1312#ifdef CONFIG_PM_SLEEP
1313 /* look at d3.c */
1314 .suspend = iwl_mvm_suspend,
1315 .resume = iwl_mvm_resume,
1316 .set_wakeup = iwl_mvm_set_wakeup,
1317 .set_rekey_data = iwl_mvm_set_rekey_data,
1318#if IS_ENABLED(CONFIG_IPV6)
1319 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
1320#endif
1321 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
1322#endif
1323};