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iwlwifi: mvm: Always use SCAN_TYPE_FORCED
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
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8ca151b5
JB		 1/******************************************************************************
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
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 26 *
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>
f0c2646a 68#include <linux/ip.h>
8ca151b5 69#include <net/mac80211.h>
f0c2646a 70#include <net/tcp.h>
8ca151b5
JB		 71
72#include "iwl-op-mode.h"
73#include "iwl-io.h"
74#include "mvm.h"
75#include "sta.h"
76#include "time-event.h"
77#include "iwl-eeprom-parse.h"
78#include "fw-api-scan.h"
79#include "iwl-phy-db.h"
80
81static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
82 {
83 .max = 1,
84 .types = BIT(NL80211_IFTYPE_STATION) |
85 BIT(NL80211_IFTYPE_AP),
86 },
87 {
88 .max = 1,
89 .types = BIT(NL80211_IFTYPE_P2P_CLIENT) |
90 BIT(NL80211_IFTYPE_P2P_GO),
91 },
92 {
93 .max = 1,
94 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
95 },
96};
97
98static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
99 {
100 .num_different_channels = 1,
101 .max_interfaces = 3,
102 .limits = iwl_mvm_limits,
103 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
104 },
105};
106
f0c2646a
JB		 107#ifdef CONFIG_PM_SLEEP
108static const struct nl80211_wowlan_tcp_data_token_feature
109iwl_mvm_wowlan_tcp_token_feature = {
110 .min_len = 0,
111 .max_len = 255,
112 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
113};
114
115static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
116 .tok = &iwl_mvm_wowlan_tcp_token_feature,
117 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
118 sizeof(struct ethhdr) -
119 sizeof(struct iphdr) -
120 sizeof(struct tcphdr),
121 .data_interval_max = 65535, /* __le16 in API */
122 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
123 sizeof(struct ethhdr) -
124 sizeof(struct iphdr) -
125 sizeof(struct tcphdr),
126 .seq = true,
127};
128#endif
129
8ca151b5
JB		 130int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
131{
132 struct ieee80211_hw *hw = mvm->hw;
831e85f3 133 int num_mac, ret, i;
8ca151b5
JB		 134
135 /* Tell mac80211 our characteristics */
136 hw->flags = IEEE80211_HW_SIGNAL_DBM |
137 IEEE80211_HW_SPECTRUM_MGMT |
138 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
139 IEEE80211_HW_QUEUE_CONTROL |
140 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 141 IEEE80211_HW_SUPPORTS_PS |
142 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd
JB		 143 IEEE80211_HW_AMPDU_AGGREGATION |
144 IEEE80211_HW_TIMING_BEACON_ONLY;
8ca151b5 145
398e8c6c
IP		 146 hw->queues = IWL_MVM_FIRST_AGG_QUEUE;
147 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
8ca151b5
JB		 148 hw->rate_control_algorithm = "iwl-mvm-rs";
149
150 /*
151 * Enable 11w if advertised by firmware and software crypto
152 * is not enabled (as the firmware will interpret some mgmt
153 * packets, so enabling it with software crypto isn't safe)
154 */
155 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
156 !iwlwifi_mod_params.sw_crypto)
157 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
158
159 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
160 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
161 hw->chanctx_data_size = sizeof(struct iwl_mvm_phy_ctxt);
162
163 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
164 BIT(NL80211_IFTYPE_P2P_CLIENT) |
165 BIT(NL80211_IFTYPE_AP) |
166 BIT(NL80211_IFTYPE_P2P_GO) |
167 BIT(NL80211_IFTYPE_P2P_DEVICE);
168
169 hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
170 WIPHY_FLAG_DISABLE_BEACON_HINTS |
171 WIPHY_FLAG_IBSS_RSN;
172
173 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
174 hw->wiphy->n_iface_combinations =
175 ARRAY_SIZE(iwl_mvm_iface_combinations);
176
c451e6d4 177 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 178 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
179
180 /* Extract MAC address */
181 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
182 hw->wiphy->addresses = mvm->addresses;
183 hw->wiphy->n_addresses = 1;
831e85f3
IP		 184
185 /* Extract additional MAC addresses if available */
186 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
187 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
188
189 for (i = 1; i < num_mac; i++) {
190 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 191 ETH_ALEN);
831e85f3 192 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 193 hw->wiphy->n_addresses++;
194 }
195
196 /* we create the 802.11 header and a max-length SSID element */
197 hw->wiphy->max_scan_ie_len =
198 mvm->fw->ucode_capa.max_probe_length - 24 - 34;
199 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
200
201 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
202 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
203 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
204 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
205 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
206 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
207
208 hw->wiphy->hw_version = mvm->trans->hw_id;
209
ade50652 210 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 211 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
212 else
213 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
214
215 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
216 NL80211_FEATURE_P2P_GO_OPPPS;
217
218 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
219
220#ifdef CONFIG_PM_SLEEP
221 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
222 mvm->trans->ops->d3_suspend &&
223 mvm->trans->ops->d3_resume &&
224 device_can_wakeup(mvm->trans->dev)) {
225 hw->wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
226 WIPHY_WOWLAN_DISCONNECT |
227 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
228 WIPHY_WOWLAN_RFKILL_RELEASE;
229 if (!iwlwifi_mod_params.sw_crypto)
230 hw->wiphy->wowlan.flags |=
231 WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
232 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
233 WIPHY_WOWLAN_4WAY_HANDSHAKE;
234
235 hw->wiphy->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
236 hw->wiphy->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
237 hw->wiphy->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
f0c2646a 238 hw->wiphy->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
8ca151b5
JB		 239 }
240#endif
241
242 ret = iwl_mvm_leds_init(mvm);
243 if (ret)
244 return ret;
245
246 return ieee80211_register_hw(mvm->hw);
247}
248
249static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
250 struct ieee80211_tx_control *control,
251 struct sk_buff *skb)
252{
253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
254
255 if (test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status)) {
256 IWL_DEBUG_DROP(mvm, "Dropping - RF KILL\n");
257 goto drop;
258 }
259
398e8c6c 260 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
8ca151b5
JB		 261 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
262 goto drop;
263
264 if (control->sta) {
265 if (iwl_mvm_tx_skb(mvm, skb, control->sta))
266 goto drop;
267 return;
268 }
269
270 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
271 goto drop;
272 return;
273 drop:
274 ieee80211_free_txskb(hw, skb);
275}
276
277static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
278 struct ieee80211_vif *vif,
279 enum ieee80211_ampdu_mlme_action action,
280 struct ieee80211_sta *sta, u16 tid,
281 u16 *ssn, u8 buf_size)
282{
283 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
284 int ret;
285
286 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
287 sta->addr, tid, action);
288
289 if (!(mvm->nvm_data->sku_cap_11n_enable))
290 return -EACCES;
291
292 mutex_lock(&mvm->mutex);
293
294 switch (action) {
295 case IEEE80211_AMPDU_RX_START:
296 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
297 ret = -EINVAL;
298 break;
299 }
300 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
301 break;
302 case IEEE80211_AMPDU_RX_STOP:
303 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
304 break;
305 case IEEE80211_AMPDU_TX_START:
5d158efa
EG		 306 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
307 ret = -EINVAL;
308 break;
309 }
8ca151b5
JB		 310 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
311 break;
312 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 313 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
314 break;
8ca151b5
JB		 315 case IEEE80211_AMPDU_TX_STOP_FLUSH:
316 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 317 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 318 break;
319 case IEEE80211_AMPDU_TX_OPERATIONAL:
320 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
321 break;
322 default:
323 WARN_ON_ONCE(1);
324 ret = -EINVAL;
325 break;
326 }
327 mutex_unlock(&mvm->mutex);
328
329 return ret;
330}
331
332static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
333 struct ieee80211_vif *vif)
334{
335 struct iwl_mvm *mvm = data;
336 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
337
338 mvmvif->uploaded = false;
339 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
340
341 /* does this make sense at all? */
342 mvmvif->color++;
343
344 spin_lock_bh(&mvm->time_event_lock);
345 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
346 spin_unlock_bh(&mvm->time_event_lock);
347
348 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
349 mvmvif->phy_ctxt = NULL;
350}
351
352static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
353{
354 iwl_trans_stop_device(mvm->trans);
355 iwl_trans_stop_hw(mvm->trans, false);
356
357 mvm->scan_status = IWL_MVM_SCAN_NONE;
358
359 /* just in case one was running */
360 ieee80211_remain_on_channel_expired(mvm->hw);
361
362 ieee80211_iterate_active_interfaces_atomic(
363 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
364 iwl_mvm_cleanup_iterator, mvm);
365
366 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
367 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
368
369 ieee80211_wake_queues(mvm->hw);
370
371 mvm->vif_count = 0;
372}
373
374static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
375{
376 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
377 int ret;
378
379 mutex_lock(&mvm->mutex);
380
381 /* Clean up some internal and mac80211 state on restart */
382 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
383 iwl_mvm_restart_cleanup(mvm);
384
385 ret = iwl_mvm_up(mvm);
386 mutex_unlock(&mvm->mutex);
387
388 return ret;
389}
390
391static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
392{
393 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
394 int ret;
395
396 mutex_lock(&mvm->mutex);
397
398 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
399 ret = iwl_mvm_update_quotas(mvm, NULL);
400 if (ret)
401 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
402 ret);
403
404 mutex_unlock(&mvm->mutex);
405}
406
407static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
408{
409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
410
411 flush_work(&mvm->async_handlers_wk);
412
413 mutex_lock(&mvm->mutex);
414 /* async_handlers_wk is now blocked */
415
416 /*
417 * The work item could be running or queued if the
418 * ROC time event stops just as we get here.
419 */
420 cancel_work_sync(&mvm->roc_done_wk);
421
422 iwl_trans_stop_device(mvm->trans);
423 iwl_trans_stop_hw(mvm->trans, false);
424
425 iwl_mvm_async_handlers_purge(mvm);
426 /* async_handlers_list is empty and will stay empty: HW is stopped */
427
428 /* the fw is stopped, the aux sta is dead: clean up driver state */
429 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
430
431 mutex_unlock(&mvm->mutex);
432
433 /*
434 * The worker might have been waiting for the mutex, let it run and
435 * discover that its list is now empty.
436 */
437 cancel_work_sync(&mvm->async_handlers_wk);
438}
439
440static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac,
441 struct ieee80211_vif *vif)
442{
443 struct iwl_mvm *mvm = data;
444 int ret;
445
446 ret = iwl_mvm_power_disable(mvm, vif);
447 if (ret)
448 IWL_ERR(mvm, "failed to disable power management\n");
449}
450
451static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
452 struct ieee80211_vif *vif)
453{
454 struct iwl_mvm *mvm = data;
455
456 iwl_mvm_power_update_mode(mvm, vif);
457}
458
459static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
460 struct ieee80211_vif *vif)
461{
462 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
463 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
464 int ret;
465
466 /*
467 * Not much to do here. The stack will not allow interface
468 * types or combinations that we didn't advertise, so we
469 * don't really have to check the types.
470 */
471
472 mutex_lock(&mvm->mutex);
473
474 /* Allocate resources for the MAC context, and add it the the fw */
475 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
476 if (ret)
477 goto out_unlock;
478
479 /*
480 * The AP binding flow can be done only after the beacon
481 * template is configured (which happens only in the mac80211
482 * start_ap() flow), and adding the broadcast station can happen
483 * only after the binding.
484 * In addition, since modifying the MAC before adding a bcast
485 * station is not allowed by the FW, delay the adding of MAC context to
486 * the point where we can also add the bcast station.
487 * In short: there's not much we can do at this point, other than
488 * allocating resources :)
489 */
490 if (vif->type == NL80211_IFTYPE_AP) {
491 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
492 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
493 qmask);
494 if (ret) {
495 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
496 goto out_release;
497 }
498
499 goto out_unlock;
500 }
501
502 /*
503 * TODO: remove this temporary code.
504 * Currently MVM FW supports power management only on single MAC.
5ee2b215
AB		 505 * If new interface added, disable PM on existing interface.
506 * P2P device is a special case, since it is handled by FW similary to
507 * scan. If P2P deviced is added, PM remains enabled on existing
508 * interface.
8ca151b5
JB		 509 * Note: the method below does not count the new interface being added
510 * at this moment.
511 */
5ee2b215
AB		 512 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
513 mvm->vif_count++;
8ca151b5
JB		 514 if (mvm->vif_count > 1) {
515 IWL_DEBUG_MAC80211(mvm,
516 "Disable power on existing interfaces\n");
5360cfb2 517 ieee80211_iterate_active_interfaces_atomic(
8ca151b5
JB		 518 mvm->hw,
519 IEEE80211_IFACE_ITER_NORMAL,
520 iwl_mvm_pm_disable_iterator, mvm);
521 }
522
523 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
524 if (ret)
525 goto out_release;
526
527 /*
528 * Update power state on the new interface. Admittedly, based on
529 * mac80211 logics this power update will disable power management
530 */
531 iwl_mvm_power_update_mode(mvm, vif);
532
533 /*
534 * P2P_DEVICE interface does not have a channel context assigned to it,
535 * so a dedicated PHY context is allocated to it and the corresponding
536 * MAC context is bound to it at this stage.
537 */
538 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
539 struct ieee80211_channel *chan;
540 struct cfg80211_chan_def chandef;
541
542 mvmvif->phy_ctxt = &mvm->phy_ctxt_roc;
543
544 /*
545 * The channel used here isn't relevant as it's
546 * going to be overwritten as part of the ROC flow.
547 * For now use the first channel we have.
548 */
549 chan = &mvm->hw->wiphy->bands[IEEE80211_BAND_2GHZ]->channels[0];
550 cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_NO_HT);
551 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt,
552 &chandef, 1, 1);
553 if (ret)
554 goto out_remove_mac;
555
556 ret = iwl_mvm_binding_add_vif(mvm, vif);
557 if (ret)
558 goto out_remove_phy;
559
560 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
561 if (ret)
562 goto out_unbind;
563
564 /* Save a pointer to p2p device vif, so it can later be used to
565 * update the p2p device MAC when a GO is started/stopped */
566 mvm->p2p_device_vif = vif;
567 }
568
63494374 569 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 570 goto out_unlock;
571
572 out_unbind:
573 iwl_mvm_binding_remove_vif(mvm, vif);
574 out_remove_phy:
575 iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
576 out_remove_mac:
577 mvmvif->phy_ctxt = NULL;
578 iwl_mvm_mac_ctxt_remove(mvm, vif);
579 out_release:
580 /*
581 * TODO: remove this temporary code.
582 * Currently MVM FW supports power management only on single MAC.
5ee2b215 583 * Check if only one additional interface remains after releasing
8ca151b5
JB		 584 * current one. Update power mode on the remaining interface.
585 */
5ee2b215
AB		 586 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
587 mvm->vif_count--;
8ca151b5
JB		 588 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
589 mvm->vif_count);
590 if (mvm->vif_count == 1) {
591 ieee80211_iterate_active_interfaces(
592 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
593 iwl_mvm_power_update_iterator, mvm);
594 }
595 iwl_mvm_mac_ctxt_release(mvm, vif);
596 out_unlock:
597 mutex_unlock(&mvm->mutex);
598
599 return ret;
600}
601
38a12b5b
JB		 602static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
603 struct ieee80211_vif *vif)
8ca151b5 604{
8ca151b5
JB		 605 u32 tfd_msk = 0, ac;
606
607 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
608 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
609 tfd_msk |= BIT(vif->hw_queue[ac]);
610
611 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
612 tfd_msk |= BIT(vif->cab_queue);
613
614 if (tfd_msk) {
615 mutex_lock(&mvm->mutex);
616 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
617 mutex_unlock(&mvm->mutex);
618 }
619
620 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
621 /*
622 * Flush the ROC worker which will flush the OFFCHANNEL queue.
623 * We assume here that all the packets sent to the OFFCHANNEL
624 * queue are sent in ROC session.
625 */
626 flush_work(&mvm->roc_done_wk);
627 } else {
628 /*
629 * By now, all the AC queues are empty. The AGG queues are
630 * empty too. We already got all the Tx responses for all the
631 * packets in the queues. The drain work can have been
632 * triggered. Flush it. This work item takes the mutex, so kill
633 * it before we take it.
634 */
635 flush_work(&mvm->sta_drained_wk);
636 }
38a12b5b
JB		 637}
638
639static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
640 struct ieee80211_vif *vif)
641{
642 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
643 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
644
645 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 646
647 mutex_lock(&mvm->mutex);
648
63494374
JB		 649 iwl_mvm_vif_dbgfs_clean(mvm, vif);
650
8ca151b5
JB		 651 /*
652 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 653 * interface is be handled as part of the stop_ap flow.
8ca151b5
JB		 654 */
655 if (vif->type == NL80211_IFTYPE_AP) {
656 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
657 goto out_release;
658 }
659
660 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
661 mvm->p2p_device_vif = NULL;
662 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
663 iwl_mvm_binding_remove_vif(mvm, vif);
664 iwl_mvm_phy_ctxt_remove(mvm, mvmvif->phy_ctxt);
665 mvmvif->phy_ctxt = NULL;
666 }
667
668 /*
669 * TODO: remove this temporary code.
670 * Currently MVM FW supports power management only on single MAC.
671 * Check if only one additional interface remains after removing
672 * current one. Update power mode on the remaining interface.
673 */
5ee2b215 674 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5
JB		 675 mvm->vif_count--;
676 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
677 mvm->vif_count);
678 if (mvm->vif_count == 1) {
679 ieee80211_iterate_active_interfaces(
680 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
681 iwl_mvm_power_update_iterator, mvm);
682 }
683
684 iwl_mvm_mac_ctxt_remove(mvm, vif);
685
686out_release:
687 iwl_mvm_mac_ctxt_release(mvm, vif);
688 mutex_unlock(&mvm->mutex);
689}
690
691static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
692{
693 return 0;
694}
695
696static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
697 unsigned int changed_flags,
698 unsigned int *total_flags,
699 u64 multicast)
700{
701 *total_flags = 0;
702}
703
704static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
705 struct ieee80211_vif *vif,
706 struct ieee80211_bss_conf *bss_conf,
707 u32 changes)
708{
709 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
710 int ret;
711
712 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
713 if (ret)
714 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
715
716 if (changes & BSS_CHANGED_ASSOC) {
717 if (bss_conf->assoc) {
718 /* add quota for this interface */
719 ret = iwl_mvm_update_quotas(mvm, vif);
720 if (ret) {
721 IWL_ERR(mvm, "failed to update quotas\n");
722 return;
723 }
9166b1ee 724 iwl_mvm_bt_coex_vif_assoc(mvm, vif);
8ca151b5
JB		 725 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
726 /* remove AP station now that the MAC is unassoc */
727 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
728 if (ret)
729 IWL_ERR(mvm, "failed to remove AP station\n");
730 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
731 /* remove quota for this interface */
732 ret = iwl_mvm_update_quotas(mvm, NULL);
733 if (ret)
734 IWL_ERR(mvm, "failed to update quotas\n");
735 }
210a544e
JB		 736 } else if (changes & BSS_CHANGED_DTIM_PERIOD) {
737 /*
738 * We received a beacon _after_ association so
739 * remove the session protection.
740 */
741 iwl_mvm_remove_time_event(mvm, mvmvif,
742 &mvmvif->time_event_data);
8ca151b5
JB		 743 } else if (changes & BSS_CHANGED_PS) {
744 /*
745 * TODO: remove this temporary code.
746 * Currently MVM FW supports power management only on single
747 * MAC. Avoid power mode update if more than one interface
748 * is active.
749 */
750 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
751 mvm->vif_count);
752 if (mvm->vif_count == 1) {
753 ret = iwl_mvm_power_update_mode(mvm, vif);
754 if (ret)
755 IWL_ERR(mvm, "failed to update power mode\n");
756 }
757 }
758}
759
760static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
761{
762 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
763 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
764 int ret;
765
766 mutex_lock(&mvm->mutex);
767
768 /* Send the beacon template */
769 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
770 if (ret)
771 goto out_unlock;
772
773 /* Add the mac context */
774 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
775 if (ret)
776 goto out_unlock;
777
778 /* Perform the binding */
779 ret = iwl_mvm_binding_add_vif(mvm, vif);
780 if (ret)
781 goto out_remove;
782
783 mvmvif->ap_active = true;
784
785 /* Send the bcast station. At this stage the TBTT and DTIM time events
786 * are added and applied to the scheduler */
787 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
788 if (ret)
789 goto out_unbind;
790
791 ret = iwl_mvm_update_quotas(mvm, vif);
792 if (ret)
793 goto out_rm_bcast;
794
795 /* Need to update the P2P Device MAC */
796 if (vif->p2p && mvm->p2p_device_vif)
797 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
798
799 mutex_unlock(&mvm->mutex);
800 return 0;
801
802out_rm_bcast:
803 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
804out_unbind:
805 iwl_mvm_binding_remove_vif(mvm, vif);
806out_remove:
807 iwl_mvm_mac_ctxt_remove(mvm, vif);
808out_unlock:
809 mutex_unlock(&mvm->mutex);
810 return ret;
811}
812
813static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
814{
815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
816 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
817
38a12b5b
JB		 818 iwl_mvm_prepare_mac_removal(mvm, vif);
819
8ca151b5
JB		 820 mutex_lock(&mvm->mutex);
821
822 mvmvif->ap_active = false;
823
824 /* Need to update the P2P Device MAC */
825 if (vif->p2p && mvm->p2p_device_vif)
826 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
827
828 iwl_mvm_update_quotas(mvm, NULL);
829 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
830 iwl_mvm_binding_remove_vif(mvm, vif);
831 iwl_mvm_mac_ctxt_remove(mvm, vif);
832
833 mutex_unlock(&mvm->mutex);
834}
835
836static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm,
837 struct ieee80211_vif *vif,
838 struct ieee80211_bss_conf *bss_conf,
839 u32 changes)
840{
841 /* Need to send a new beacon template to the FW */
842 if (changes & BSS_CHANGED_BEACON) {
843 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
844 IWL_WARN(mvm, "Failed updating beacon data\n");
845 }
846}
847
848static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
849 struct ieee80211_vif *vif,
850 struct ieee80211_bss_conf *bss_conf,
851 u32 changes)
852{
853 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
854
855 mutex_lock(&mvm->mutex);
856
857 switch (vif->type) {
858 case NL80211_IFTYPE_STATION:
859 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
860 break;
861 case NL80211_IFTYPE_AP:
862 iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes);
863 break;
864 default:
865 /* shouldn't happen */
866 WARN_ON_ONCE(1);
867 }
868
869 mutex_unlock(&mvm->mutex);
870}
871
872static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
873 struct ieee80211_vif *vif,
874 struct cfg80211_scan_request *req)
875{
876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
877 int ret;
878
879 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
880 return -EINVAL;
881
882 mutex_lock(&mvm->mutex);
883
884 if (mvm->scan_status == IWL_MVM_SCAN_NONE)
885 ret = iwl_mvm_scan_request(mvm, vif, req);
886 else
887 ret = -EBUSY;
888
889 mutex_unlock(&mvm->mutex);
890
891 return ret;
892}
893
894static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
895 struct ieee80211_vif *vif)
896{
897 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
898
899 mutex_lock(&mvm->mutex);
900
901 iwl_mvm_cancel_scan(mvm);
902
903 mutex_unlock(&mvm->mutex);
904}
905
906static void
907iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
908 struct ieee80211_sta *sta, u16 tid,
909 int num_frames,
910 enum ieee80211_frame_release_type reason,
911 bool more_data)
912{
913 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 914
915 /* TODO: how do we tell the fw to send frames for a specific TID */
916
917 /*
918 * The fw will send EOSP notification when the last frame will be
919 * transmitted.
920 */
9cc40712 921 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
8ca151b5
JB		 922}
923
924static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
925 struct ieee80211_vif *vif,
926 enum sta_notify_cmd cmd,
927 struct ieee80211_sta *sta)
928{
929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
930 struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
931
932 switch (cmd) {
933 case STA_NOTIFY_SLEEP:
934 if (atomic_read(&mvmsta->pending_frames) > 0)
935 ieee80211_sta_block_awake(hw, sta, true);
936 /*
937 * The fw updates the STA to be asleep. Tx packets on the Tx
938 * queues to this station will not be transmitted. The fw will
939 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
940 */
941 break;
942 case STA_NOTIFY_AWAKE:
881acd89 943 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 944 break;
9cc40712 945 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 946 break;
947 default:
948 break;
949 }
950}
951
952static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
953 struct ieee80211_vif *vif,
954 struct ieee80211_sta *sta,
955 enum ieee80211_sta_state old_state,
956 enum ieee80211_sta_state new_state)
957{
958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
959 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
960 int ret;
961
962 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
963 sta->addr, old_state, new_state);
964
965 /* this would be a mac80211 bug ... but don't crash */
966 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
967 return -EINVAL;
968
969 /* if a STA is being removed, reuse its ID */
970 flush_work(&mvm->sta_drained_wk);
971
972 mutex_lock(&mvm->mutex);
973 if (old_state == IEEE80211_STA_NOTEXIST &&
974 new_state == IEEE80211_STA_NONE) {
975 ret = iwl_mvm_add_sta(mvm, vif, sta);
976 } else if (old_state == IEEE80211_STA_NONE &&
977 new_state == IEEE80211_STA_AUTH) {
978 ret = 0;
979 } else if (old_state == IEEE80211_STA_AUTH &&
980 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 981 ret = iwl_mvm_update_sta(mvm, vif, sta);
982 if (ret == 0)
983 iwl_mvm_rs_rate_init(mvm, sta,
984 mvmvif->phy_ctxt->channel->band);
8ca151b5
JB		 985 } else if (old_state == IEEE80211_STA_ASSOC &&
986 new_state == IEEE80211_STA_AUTHORIZED) {
987 ret = 0;
988 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
989 new_state == IEEE80211_STA_ASSOC) {
990 ret = 0;
991 } else if (old_state == IEEE80211_STA_ASSOC &&
992 new_state == IEEE80211_STA_AUTH) {
993 ret = 0;
994 } else if (old_state == IEEE80211_STA_AUTH &&
995 new_state == IEEE80211_STA_NONE) {
996 ret = 0;
997 } else if (old_state == IEEE80211_STA_NONE &&
998 new_state == IEEE80211_STA_NOTEXIST) {
999 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1000 } else {
1001 ret = -EIO;
1002 }
1003 mutex_unlock(&mvm->mutex);
1004
1005 return ret;
1006}
1007
1008static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1009{
1010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1011
1012 mvm->rts_threshold = value;
1013
1014 return 0;
1015}
1016
1017static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1018 struct ieee80211_vif *vif, u16 ac,
1019 const struct ieee80211_tx_queue_params *params)
1020{
1021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1023
1024 mvmvif->queue_params[ac] = *params;
1025
1026 /*
1027 * No need to update right away, we'll get BSS_CHANGED_QOS
1028 * The exception is P2P_DEVICE interface which needs immediate update.
1029 */
1030 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1031 int ret;
1032
1033 mutex_lock(&mvm->mutex);
1034 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1035 mutex_unlock(&mvm->mutex);
1036 return ret;
1037 }
1038 return 0;
1039}
1040
1041static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1042 struct ieee80211_vif *vif)
1043{
1044 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1045 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1046 200 + vif->bss_conf.beacon_int);
1047 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1048 100 + vif->bss_conf.beacon_int);
1049
1050 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1051 return;
1052
1053 mutex_lock(&mvm->mutex);
1054 /* Try really hard to protect the session and hear a beacon */
1055 iwl_mvm_protect_session(mvm, vif, duration, min_duration);
1056 mutex_unlock(&mvm->mutex);
1057}
1058
1059static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1060 enum set_key_cmd cmd,
1061 struct ieee80211_vif *vif,
1062 struct ieee80211_sta *sta,
1063 struct ieee80211_key_conf *key)
1064{
1065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1066 int ret;
1067
1068 if (iwlwifi_mod_params.sw_crypto) {
1069 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1070 return -EOPNOTSUPP;
1071 }
1072
1073 switch (key->cipher) {
1074 case WLAN_CIPHER_SUITE_TKIP:
1075 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1076 /* fall-through */
1077 case WLAN_CIPHER_SUITE_CCMP:
1078 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1079 break;
1080 case WLAN_CIPHER_SUITE_AES_CMAC:
1081 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1082 break;
1083 case WLAN_CIPHER_SUITE_WEP40:
1084 case WLAN_CIPHER_SUITE_WEP104:
1085 /*
1086 * Support for TX only, at least for now, so accept
1087 * the key and do nothing else. Then mac80211 will
1088 * pass it for TX but we don't have to use it for RX.
1089 */
1090 return 0;
1091 default:
1092 return -EOPNOTSUPP;
1093 }
1094
1095 mutex_lock(&mvm->mutex);
1096
1097 switch (cmd) {
1098 case SET_KEY:
6caffd4f
JB		 1099 if (vif->type == NL80211_IFTYPE_AP && !sta) {
1100 /* GTK on AP interface is a TX-only key, return 0 */
1101 ret = 0;
1102 key->hw_key_idx = STA_KEY_IDX_INVALID;
1103 break;
1104 }
1105
8ca151b5
JB		 1106 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1107 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1108 if (ret) {
1109 IWL_WARN(mvm, "set key failed\n");
1110 /*
1111 * can't add key for RX, but we don't need it
1112 * in the device for TX so still return 0
1113 */
6caffd4f 1114 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 1115 ret = 0;
1116 }
1117
1118 break;
1119 case DISABLE_KEY:
6caffd4f
JB		 1120 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1121 ret = 0;
1122 break;
1123 }
1124
8ca151b5
JB		 1125 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1126 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1127 break;
1128 default:
1129 ret = -EINVAL;
1130 }
1131
1132 mutex_unlock(&mvm->mutex);
1133 return ret;
1134}
1135
1136static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1137 struct ieee80211_vif *vif,
1138 struct ieee80211_key_conf *keyconf,
1139 struct ieee80211_sta *sta,
1140 u32 iv32, u16 *phase1key)
1141{
1142 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1143
1144 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1145}
1146
1147
1148static int iwl_mvm_roc(struct ieee80211_hw *hw,
1149 struct ieee80211_vif *vif,
1150 struct ieee80211_channel *channel,
d339d5ca
IP		 1151 int duration,
1152 enum ieee80211_roc_type type)
8ca151b5
JB		 1153{
1154 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1155 struct cfg80211_chan_def chandef;
1156 int ret;
1157
1158 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1159 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1160 return -EINVAL;
1161 }
1162
d339d5ca
IP		 1163 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1164 duration, type);
8ca151b5
JB		 1165
1166 mutex_lock(&mvm->mutex);
1167
1168 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1169 ret = iwl_mvm_phy_ctxt_changed(mvm, &mvm->phy_ctxt_roc,
1170 &chandef, 1, 1);
1171
1172 /* Schedule the time events */
e635c797 1173 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5
JB		 1174
1175 mutex_unlock(&mvm->mutex);
1176 IWL_DEBUG_MAC80211(mvm, "leave\n");
1177
1178 return ret;
1179}
1180
1181static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1182{
1183 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1184
1185 IWL_DEBUG_MAC80211(mvm, "enter\n");
1186
1187 mutex_lock(&mvm->mutex);
1188 iwl_mvm_stop_p2p_roc(mvm);
1189 mutex_unlock(&mvm->mutex);
1190
1191 IWL_DEBUG_MAC80211(mvm, "leave\n");
1192 return 0;
1193}
1194
1195static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1196 struct ieee80211_chanctx_conf *ctx)
1197{
1198 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1199 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1200 int ret;
1201
1202 mutex_lock(&mvm->mutex);
1203
1204 IWL_DEBUG_MAC80211(mvm, "Add PHY context\n");
1205 ret = iwl_mvm_phy_ctxt_add(mvm, phy_ctxt, &ctx->def,
1206 ctx->rx_chains_static,
1207 ctx->rx_chains_dynamic);
1208 mutex_unlock(&mvm->mutex);
1209 return ret;
1210}
1211
1212static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
1213 struct ieee80211_chanctx_conf *ctx)
1214{
1215 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1216 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1217
1218 mutex_lock(&mvm->mutex);
1219 iwl_mvm_phy_ctxt_remove(mvm, phy_ctxt);
1220 mutex_unlock(&mvm->mutex);
1221}
1222
1223static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
1224 struct ieee80211_chanctx_conf *ctx,
1225 u32 changed)
1226{
1227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1228 struct iwl_mvm_phy_ctxt *phy_ctxt = (void *)ctx->drv_priv;
1229
1230 mutex_lock(&mvm->mutex);
1231 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1232 ctx->rx_chains_static,
1233 ctx->rx_chains_dynamic);
1234 mutex_unlock(&mvm->mutex);
1235}
1236
1237static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
1238 struct ieee80211_vif *vif,
1239 struct ieee80211_chanctx_conf *ctx)
1240{
1241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1242 struct iwl_mvm_phy_ctxt *phyctx = (void *)ctx->drv_priv;
1243 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1244 int ret;
1245
1246 mutex_lock(&mvm->mutex);
1247
1248 mvmvif->phy_ctxt = phyctx;
1249
1250 switch (vif->type) {
1251 case NL80211_IFTYPE_AP:
1252 /*
1253 * The AP binding flow is handled as part of the start_ap flow
1254 * (in bss_info_changed).
1255 */
1256 ret = 0;
1257 goto out_unlock;
1258 case NL80211_IFTYPE_STATION:
1259 case NL80211_IFTYPE_ADHOC:
1260 case NL80211_IFTYPE_MONITOR:
1261 break;
1262 default:
1263 ret = -EINVAL;
1264 goto out_unlock;
1265 }
1266
1267 ret = iwl_mvm_binding_add_vif(mvm, vif);
1268 if (ret)
1269 goto out_unlock;
1270
1271 /*
1272 * Setting the quota at this stage is only required for monitor
1273 * interfaces. For the other types, the bss_info changed flow
1274 * will handle quota settings.
1275 */
1276 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 1277 mvmvif->monitor_active = true;
8ca151b5
JB		 1278 ret = iwl_mvm_update_quotas(mvm, vif);
1279 if (ret)
1280 goto out_remove_binding;
1281 }
1282
1283 goto out_unlock;
1284
1285 out_remove_binding:
1286 iwl_mvm_binding_remove_vif(mvm, vif);
1287 out_unlock:
1288 mutex_unlock(&mvm->mutex);
1289 if (ret)
1290 mvmvif->phy_ctxt = NULL;
1291 return ret;
1292}
1293
1294static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
1295 struct ieee80211_vif *vif,
1296 struct ieee80211_chanctx_conf *ctx)
1297{
1298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1299 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1300
1301 mutex_lock(&mvm->mutex);
1302
1303 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
1304
1305 if (vif->type == NL80211_IFTYPE_AP)
1306 goto out_unlock;
1307
8ca151b5
JB		 1308 switch (vif->type) {
1309 case NL80211_IFTYPE_MONITOR:
1e1391ca
IP		 1310 mvmvif->monitor_active = false;
1311 iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1312 break;
1313 default:
1314 break;
1315 }
1316
1e1391ca 1317 iwl_mvm_binding_remove_vif(mvm, vif);
8ca151b5
JB		 1318out_unlock:
1319 mvmvif->phy_ctxt = NULL;
1320 mutex_unlock(&mvm->mutex);
1321}
1322
1323static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
1324 struct ieee80211_sta *sta,
1325 bool set)
1326{
1327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1328 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1329
1330 if (!mvm_sta || !mvm_sta->vif) {
1331 IWL_ERR(mvm, "Station is not associated to a vif\n");
1332 return -EINVAL;
1333 }
1334
1335 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
1336}
1337
2b76ef13
EG		 1338static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
1339 struct ieee80211_vif *vif,
1340 enum ieee80211_rssi_event rssi_event)
1341{
1342 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1343
1344 iwl_mvm_bt_rssi_event(mvm, vif, rssi_event);
1345}
1346
8ca151b5
JB		 1347struct ieee80211_ops iwl_mvm_hw_ops = {
1348 .tx = iwl_mvm_mac_tx,
1349 .ampdu_action = iwl_mvm_mac_ampdu_action,
1350 .start = iwl_mvm_mac_start,
1351 .restart_complete = iwl_mvm_mac_restart_complete,
1352 .stop = iwl_mvm_mac_stop,
1353 .add_interface = iwl_mvm_mac_add_interface,
1354 .remove_interface = iwl_mvm_mac_remove_interface,
1355 .config = iwl_mvm_mac_config,
1356 .configure_filter = iwl_mvm_configure_filter,
1357 .bss_info_changed = iwl_mvm_bss_info_changed,
1358 .hw_scan = iwl_mvm_mac_hw_scan,
1359 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1360 .sta_state = iwl_mvm_mac_sta_state,
1361 .sta_notify = iwl_mvm_mac_sta_notify,
1362 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
1363 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1364 .conf_tx = iwl_mvm_mac_conf_tx,
1365 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
1366 .set_key = iwl_mvm_mac_set_key,
1367 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
1368 .remain_on_channel = iwl_mvm_roc,
1369 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2b76ef13 1370 .rssi_callback = iwl_mvm_mac_rssi_callback,
8ca151b5
JB		 1371
1372 .add_chanctx = iwl_mvm_add_chanctx,
1373 .remove_chanctx = iwl_mvm_remove_chanctx,
1374 .change_chanctx = iwl_mvm_change_chanctx,
1375 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
1376 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
1377
1378 .start_ap = iwl_mvm_start_ap,
1379 .stop_ap = iwl_mvm_stop_ap,
1380
1381 .set_tim = iwl_mvm_set_tim,
1382
1383#ifdef CONFIG_PM_SLEEP
1384 /* look at d3.c */
1385 .suspend = iwl_mvm_suspend,
1386 .resume = iwl_mvm_resume,
1387 .set_wakeup = iwl_mvm_set_wakeup,
1388 .set_rekey_data = iwl_mvm_set_rekey_data,
1389#if IS_ENABLED(CONFIG_IPV6)
1390 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
1391#endif
1392 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
1393#endif
1394};
Linux kernel - Deliverables
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