]> git.ipfire.org Git - thirdparty/linux.git/blame - drivers/net/wireless/iwlwifi/mvm/mac80211.c
projects / thirdparty / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: mvm: Add Smart FIFO support
[thirdparty/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
CommitLineData
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"
507cadf2 80#include "testmode.h"
8ca151b5
JB		 81
82static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
83 {
84 .max = 1,
8eb38710 85 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 86 },
3c15a0fb
JB		 87 {
88 .max = 1,
8eb38710
IP		 89 .types = BIT(NL80211_IFTYPE_AP) |
90 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 91 BIT(NL80211_IFTYPE_P2P_GO),
92 },
93 {
94 .max = 1,
95 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
96 },
8ca151b5
JB		 97};
98
99static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
100 {
101 .num_different_channels = 1,
102 .max_interfaces = 3,
103 .limits = iwl_mvm_limits,
104 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
105 },
106};
107
f0c2646a
JB		 108#ifdef CONFIG_PM_SLEEP
109static const struct nl80211_wowlan_tcp_data_token_feature
110iwl_mvm_wowlan_tcp_token_feature = {
111 .min_len = 0,
112 .max_len = 255,
113 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
114};
115
116static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
117 .tok = &iwl_mvm_wowlan_tcp_token_feature,
118 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
119 sizeof(struct ethhdr) -
120 sizeof(struct iphdr) -
121 sizeof(struct tcphdr),
122 .data_interval_max = 65535, /* __le16 in API */
123 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
124 sizeof(struct ethhdr) -
125 sizeof(struct iphdr) -
126 sizeof(struct tcphdr),
127 .seq = true,
128};
129#endif
130
fe0f2de3
IP		 131static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
132{
133 int i;
134
135 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
136 for (i = 0; i < NUM_PHY_CTX; i++) {
137 mvm->phy_ctxts[i].id = i;
138 mvm->phy_ctxts[i].ref = 0;
139 }
140}
141
20f1a5de
DS		 142static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
143{
144 /* we create the 802.11 header and SSID element */
145 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
146 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
147 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
148}
149
8ca151b5
JB		 150int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
151{
152 struct ieee80211_hw *hw = mvm->hw;
831e85f3 153 int num_mac, ret, i;
8ca151b5
JB		 154
155 /* Tell mac80211 our characteristics */
156 hw->flags = IEEE80211_HW_SIGNAL_DBM |
157 IEEE80211_HW_SPECTRUM_MGMT |
158 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
159 IEEE80211_HW_QUEUE_CONTROL |
160 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 161 IEEE80211_HW_SUPPORTS_PS |
162 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 163 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 164 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be
EG		 165 IEEE80211_HW_CONNECTION_MONITOR |
166 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
e8e626ad 167 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
8ca151b5 168
19e737c9 169 hw->queues = mvm->first_agg_queue;
398e8c6c 170 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
8ca151b5
JB		 171 hw->rate_control_algorithm = "iwl-mvm-rs";
172
173 /*
174 * Enable 11w if advertised by firmware and software crypto
175 * is not enabled (as the firmware will interpret some mgmt
176 * packets, so enabling it with software crypto isn't safe)
177 */
178 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
179 !iwlwifi_mod_params.sw_crypto)
180 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
181
e8e626ad
AB		 182 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
183 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
184 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
185 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
186 }
187
8ca151b5
JB		 188 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
189 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 190 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 191
192 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 193 BIT(NL80211_IFTYPE_P2P_CLIENT) |
194 BIT(NL80211_IFTYPE_AP) |
195 BIT(NL80211_IFTYPE_P2P_GO) |
196 BIT(NL80211_IFTYPE_P2P_DEVICE);
8ca151b5 197
5023d966
JB		 198 /* IBSS has bugs in older versions */
199 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
200 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
201
a2f73b6c
LR		 202 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
203 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
204 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5
JB		 205
206 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
207 hw->wiphy->n_iface_combinations =
208 ARRAY_SIZE(iwl_mvm_iface_combinations);
209
c451e6d4 210 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 211 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
212
213 /* Extract MAC address */
214 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
215 hw->wiphy->addresses = mvm->addresses;
216 hw->wiphy->n_addresses = 1;
831e85f3
IP		 217
218 /* Extract additional MAC addresses if available */
219 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
220 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
221
222 for (i = 1; i < num_mac; i++) {
223 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 224 ETH_ALEN);
831e85f3 225 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 226 hw->wiphy->n_addresses++;
227 }
228
fe0f2de3
IP		 229 iwl_mvm_reset_phy_ctxts(mvm);
230
20f1a5de
DS		 231 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
232
8ca151b5
JB		 233 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
234
235 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
236 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
237 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
238 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
239 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
240 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
241
242 hw->wiphy->hw_version = mvm->trans->hw_id;
243
ade50652 244 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 245 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
246 else
247 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
248
35a000b7
DS		 249 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
250 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
251 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
252 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
253 /* we create the 802.11 header and zero length SSID IE. */
254 hw->wiphy->max_sched_scan_ie_len =
255 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
256 }
257
8ca151b5 258 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
61f6325d
HD		 259 NL80211_FEATURE_P2P_GO_OPPPS |
260 NL80211_FEATURE_LOW_PRIORITY_SCAN;
8ca151b5
JB		 261
262 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
263
264#ifdef CONFIG_PM_SLEEP
265 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
266 mvm->trans->ops->d3_suspend &&
267 mvm->trans->ops->d3_resume &&
268 device_can_wakeup(mvm->trans->dev)) {
964dc9e2
JB		 269 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
270 WIPHY_WOWLAN_DISCONNECT |
271 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
272 WIPHY_WOWLAN_RFKILL_RELEASE;
8ca151b5 273 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 274 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
275 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
276 WIPHY_WOWLAN_4WAY_HANDSHAKE;
277
278 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
279 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
280 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
281 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
282 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 283 }
284#endif
285
286 ret = iwl_mvm_leds_init(mvm);
287 if (ret)
288 return ret;
289
b7327d89
EG		 290 ret = ieee80211_register_hw(mvm->hw);
291 if (ret)
292 iwl_mvm_leds_exit(mvm);
293
294 return ret;
8ca151b5
JB		 295}
296
297static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
298 struct ieee80211_tx_control *control,
299 struct sk_buff *skb)
300{
301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
302
9ee718aa
EL		 303 if (iwl_mvm_is_radio_killed(mvm)) {
304 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 305 goto drop;
306 }
307
398e8c6c 308 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
8ca151b5
JB		 309 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
310 goto drop;
311
312 if (control->sta) {
313 if (iwl_mvm_tx_skb(mvm, skb, control->sta))
314 goto drop;
315 return;
316 }
317
318 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
319 goto drop;
320 return;
321 drop:
322 ieee80211_free_txskb(hw, skb);
323}
324
325static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
326 struct ieee80211_vif *vif,
327 enum ieee80211_ampdu_mlme_action action,
328 struct ieee80211_sta *sta, u16 tid,
329 u16 *ssn, u8 buf_size)
330{
331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
332 int ret;
333
334 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
335 sta->addr, tid, action);
336
337 if (!(mvm->nvm_data->sku_cap_11n_enable))
338 return -EACCES;
339
340 mutex_lock(&mvm->mutex);
341
342 switch (action) {
343 case IEEE80211_AMPDU_RX_START:
344 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG) {
345 ret = -EINVAL;
346 break;
347 }
348 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
349 break;
350 case IEEE80211_AMPDU_RX_STOP:
351 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
352 break;
353 case IEEE80211_AMPDU_TX_START:
5d158efa
EG		 354 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG) {
355 ret = -EINVAL;
356 break;
357 }
8ca151b5
JB		 358 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
359 break;
360 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 361 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
362 break;
8ca151b5
JB		 363 case IEEE80211_AMPDU_TX_STOP_FLUSH:
364 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 365 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 366 break;
367 case IEEE80211_AMPDU_TX_OPERATIONAL:
368 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
369 break;
370 default:
371 WARN_ON_ONCE(1);
372 ret = -EINVAL;
373 break;
374 }
375 mutex_unlock(&mvm->mutex);
376
377 return ret;
378}
379
380static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
381 struct ieee80211_vif *vif)
382{
383 struct iwl_mvm *mvm = data;
384 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
385
386 mvmvif->uploaded = false;
387 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
388
389 /* does this make sense at all? */
390 mvmvif->color++;
391
392 spin_lock_bh(&mvm->time_event_lock);
393 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
394 spin_unlock_bh(&mvm->time_event_lock);
395
fe0f2de3 396 mvmvif->phy_ctxt = NULL;
8ca151b5
JB		 397}
398
399static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
400{
401 iwl_trans_stop_device(mvm->trans);
402 iwl_trans_stop_hw(mvm->trans, false);
403
404 mvm->scan_status = IWL_MVM_SCAN_NONE;
405
406 /* just in case one was running */
407 ieee80211_remain_on_channel_expired(mvm->hw);
408
409 ieee80211_iterate_active_interfaces_atomic(
410 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
411 iwl_mvm_cleanup_iterator, mvm);
412
fe0f2de3
IP		 413 mvm->p2p_device_vif = NULL;
414
415 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 416 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
417 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
418
419 ieee80211_wake_queues(mvm->hw);
420
421 mvm->vif_count = 0;
113a0447 422 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 423}
424
425static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
426{
427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
428 int ret;
429
430 mutex_lock(&mvm->mutex);
431
432 /* Clean up some internal and mac80211 state on restart */
433 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
434 iwl_mvm_restart_cleanup(mvm);
435
436 ret = iwl_mvm_up(mvm);
437 mutex_unlock(&mvm->mutex);
438
439 return ret;
440}
441
442static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
443{
444 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
445 int ret;
446
447 mutex_lock(&mvm->mutex);
448
449 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
450 ret = iwl_mvm_update_quotas(mvm, NULL);
451 if (ret)
452 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
453 ret);
454
455 mutex_unlock(&mvm->mutex);
456}
457
458static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
459{
460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
461
462 flush_work(&mvm->async_handlers_wk);
463
464 mutex_lock(&mvm->mutex);
465 /* async_handlers_wk is now blocked */
466
467 /*
468 * The work item could be running or queued if the
469 * ROC time event stops just as we get here.
470 */
471 cancel_work_sync(&mvm->roc_done_wk);
472
473 iwl_trans_stop_device(mvm->trans);
474 iwl_trans_stop_hw(mvm->trans, false);
475
476 iwl_mvm_async_handlers_purge(mvm);
477 /* async_handlers_list is empty and will stay empty: HW is stopped */
478
479 /* the fw is stopped, the aux sta is dead: clean up driver state */
480 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
481
482 mutex_unlock(&mvm->mutex);
483
484 /*
485 * The worker might have been waiting for the mutex, let it run and
486 * discover that its list is now empty.
487 */
488 cancel_work_sync(&mvm->async_handlers_wk);
489}
490
491static void iwl_mvm_pm_disable_iterator(void *data, u8 *mac,
492 struct ieee80211_vif *vif)
493{
494 struct iwl_mvm *mvm = data;
495 int ret;
496
497 ret = iwl_mvm_power_disable(mvm, vif);
498 if (ret)
499 IWL_ERR(mvm, "failed to disable power management\n");
500}
501
502static void iwl_mvm_power_update_iterator(void *data, u8 *mac,
503 struct ieee80211_vif *vif)
504{
505 struct iwl_mvm *mvm = data;
506
507 iwl_mvm_power_update_mode(mvm, vif);
508}
509
fe0f2de3
IP		 510static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
511{
512 u16 i;
513
514 lockdep_assert_held(&mvm->mutex);
515
516 for (i = 0; i < NUM_PHY_CTX; i++)
517 if (!mvm->phy_ctxts[i].ref)
518 return &mvm->phy_ctxts[i];
519
520 IWL_ERR(mvm, "No available PHY context\n");
521 return NULL;
522}
523
8ca151b5
JB		 524static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
525 struct ieee80211_vif *vif)
526{
527 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
529 int ret;
530
531 /*
532 * Not much to do here. The stack will not allow interface
533 * types or combinations that we didn't advertise, so we
534 * don't really have to check the types.
535 */
536
537 mutex_lock(&mvm->mutex);
538
e89044d7 539 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 540 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
541 if (ret)
542 goto out_unlock;
543
ea183d02
IP		 544 /*
545 * TODO: remove this temporary code.
546 * Currently MVM FW supports power management only on single MAC.
547 * If new interface added, disable PM on existing interface.
548 * P2P device is a special case, since it is handled by FW similary to
549 * scan. If P2P deviced is added, PM remains enabled on existing
550 * interface.
551 * Note: the method below does not count the new interface being added
552 * at this moment.
553 */
554 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
555 mvm->vif_count++;
556 if (mvm->vif_count > 1) {
557 IWL_DEBUG_MAC80211(mvm,
558 "Disable power on existing interfaces\n");
559 ieee80211_iterate_active_interfaces_atomic(
560 mvm->hw,
561 IEEE80211_IFACE_ITER_NORMAL,
562 iwl_mvm_pm_disable_iterator, mvm);
563 }
564
8ca151b5
JB		 565 /*
566 * The AP binding flow can be done only after the beacon
567 * template is configured (which happens only in the mac80211
568 * start_ap() flow), and adding the broadcast station can happen
569 * only after the binding.
570 * In addition, since modifying the MAC before adding a bcast
571 * station is not allowed by the FW, delay the adding of MAC context to
572 * the point where we can also add the bcast station.
573 * In short: there's not much we can do at this point, other than
574 * allocating resources :)
575 */
5023d966
JB		 576 if (vif->type == NL80211_IFTYPE_AP ||
577 vif->type == NL80211_IFTYPE_ADHOC) {
8ca151b5
JB		 578 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
579 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
580 qmask);
581 if (ret) {
582 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
583 goto out_release;
584 }
585
77740cb4 586 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 587 goto out_unlock;
588 }
589
8ca151b5
JB		 590 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
591 if (ret)
592 goto out_release;
593
594 /*
595 * Update power state on the new interface. Admittedly, based on
596 * mac80211 logics this power update will disable power management
597 */
598 iwl_mvm_power_update_mode(mvm, vif);
599
7df15b1e 600 /* beacon filtering */
bd3351ba
EP		 601 ret = iwl_mvm_disable_beacon_filter(mvm, vif);
602 if (ret)
603 goto out_remove_mac;
604
7df15b1e 605 if (!mvm->bf_allowed_vif &&
5dca7c24
HG		 606 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
607 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
7df15b1e 608 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 609 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
610 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 611 }
612
8ca151b5
JB		 613 /*
614 * P2P_DEVICE interface does not have a channel context assigned to it,
615 * so a dedicated PHY context is allocated to it and the corresponding
616 * MAC context is bound to it at this stage.
617 */
618 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 619
fe0f2de3
IP		 620 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
621 if (!mvmvif->phy_ctxt) {
622 ret = -ENOSPC;
bd3351ba 623 goto out_free_bf;
fe0f2de3 624 }
8ca151b5 625
53a9d61e 626 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 627 ret = iwl_mvm_binding_add_vif(mvm, vif);
628 if (ret)
53a9d61e 629 goto out_unref_phy;
8ca151b5
JB		 630
631 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
632 if (ret)
633 goto out_unbind;
634
635 /* Save a pointer to p2p device vif, so it can later be used to
636 * update the p2p device MAC when a GO is started/stopped */
637 mvm->p2p_device_vif = vif;
638 }
639
63494374 640 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 641 goto out_unlock;
642
643 out_unbind:
644 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 645 out_unref_phy:
fe0f2de3 646 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 647 out_free_bf:
648 if (mvm->bf_allowed_vif == mvmvif) {
649 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 650 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
651 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 652 }
8ca151b5
JB		 653 out_remove_mac:
654 mvmvif->phy_ctxt = NULL;
655 iwl_mvm_mac_ctxt_remove(mvm, vif);
656 out_release:
5ee2b215
AB		 657 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
658 mvm->vif_count--;
4bf881f5
AB		 659 ieee80211_iterate_active_interfaces(
660 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
661 iwl_mvm_power_update_iterator, mvm);
8ca151b5
JB		 662 iwl_mvm_mac_ctxt_release(mvm, vif);
663 out_unlock:
664 mutex_unlock(&mvm->mutex);
665
666 return ret;
667}
668
38a12b5b
JB		 669static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
670 struct ieee80211_vif *vif)
8ca151b5 671{
8ca151b5
JB		 672 u32 tfd_msk = 0, ac;
673
674 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
675 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
676 tfd_msk |= BIT(vif->hw_queue[ac]);
677
678 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
679 tfd_msk |= BIT(vif->cab_queue);
680
681 if (tfd_msk) {
682 mutex_lock(&mvm->mutex);
683 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
684 mutex_unlock(&mvm->mutex);
685 }
686
687 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
688 /*
689 * Flush the ROC worker which will flush the OFFCHANNEL queue.
690 * We assume here that all the packets sent to the OFFCHANNEL
691 * queue are sent in ROC session.
692 */
693 flush_work(&mvm->roc_done_wk);
694 } else {
695 /*
696 * By now, all the AC queues are empty. The AGG queues are
697 * empty too. We already got all the Tx responses for all the
698 * packets in the queues. The drain work can have been
0742a75a 699 * triggered. Flush it.
8ca151b5
JB		 700 */
701 flush_work(&mvm->sta_drained_wk);
702 }
38a12b5b
JB		 703}
704
705static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
706 struct ieee80211_vif *vif)
707{
708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
709 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
710
711 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 712
713 mutex_lock(&mvm->mutex);
714
7df15b1e
HG		 715 if (mvm->bf_allowed_vif == mvmvif) {
716 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 717 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
718 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 719 }
720
63494374
JB		 721 iwl_mvm_vif_dbgfs_clean(mvm, vif);
722
8ca151b5
JB		 723 /*
724 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 725 * interface is be handled as part of the stop_ap flow.
8ca151b5 726 */
5023d966
JB		 727 if (vif->type == NL80211_IFTYPE_AP ||
728 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 729#ifdef CONFIG_NL80211_TESTMODE
730 if (vif == mvm->noa_vif) {
731 mvm->noa_vif = NULL;
732 mvm->noa_duration = 0;
733 }
734#endif
8ca151b5
JB		 735 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
736 goto out_release;
737 }
738
739 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
740 mvm->p2p_device_vif = NULL;
741 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
742 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 743 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 744 mvmvif->phy_ctxt = NULL;
745 }
746
747 /*
748 * TODO: remove this temporary code.
749 * Currently MVM FW supports power management only on single MAC.
750 * Check if only one additional interface remains after removing
751 * current one. Update power mode on the remaining interface.
752 */
5ee2b215 753 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5
JB		 754 mvm->vif_count--;
755 IWL_DEBUG_MAC80211(mvm, "Currently %d interfaces active\n",
756 mvm->vif_count);
757 if (mvm->vif_count == 1) {
758 ieee80211_iterate_active_interfaces(
759 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
760 iwl_mvm_power_update_iterator, mvm);
761 }
762
763 iwl_mvm_mac_ctxt_remove(mvm, vif);
764
765out_release:
766 iwl_mvm_mac_ctxt_release(mvm, vif);
767 mutex_unlock(&mvm->mutex);
768}
769
88f2fd73
MG		 770static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
771 s8 tx_power)
772{
773 /* FW is in charge of regulatory enforcement */
774 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
775 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
776 .pwr_restriction = cpu_to_le16(tx_power),
777 };
778
779 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
780 sizeof(reduce_txpwr_cmd),
781 &reduce_txpwr_cmd);
782}
783
8ca151b5
JB		 784static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
785{
786 return 0;
787}
788
789static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
790 unsigned int changed_flags,
791 unsigned int *total_flags,
792 u64 multicast)
793{
794 *total_flags = 0;
795}
796
51b6b9e0
EG		 797static int iwl_mvm_configure_mcast_filter(struct iwl_mvm *mvm,
798 struct ieee80211_vif *vif)
799{
800 struct iwl_mcast_filter_cmd mcast_filter_cmd = {
801 .pass_all = 1,
802 };
803
804 memcpy(mcast_filter_cmd.bssid, vif->bss_conf.bssid, ETH_ALEN);
805
806 return iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC,
807 sizeof(mcast_filter_cmd),
808 &mcast_filter_cmd);
809}
810
8ca151b5
JB		 811static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
812 struct ieee80211_vif *vif,
813 struct ieee80211_bss_conf *bss_conf,
814 u32 changes)
815{
816 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
817 int ret;
818
819 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
820 if (ret)
821 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
822
823 if (changes & BSS_CHANGED_ASSOC) {
824 if (bss_conf->assoc) {
825 /* add quota for this interface */
826 ret = iwl_mvm_update_quotas(mvm, vif);
827 if (ret) {
828 IWL_ERR(mvm, "failed to update quotas\n");
829 return;
830 }
51b6b9e0 831 iwl_mvm_configure_mcast_filter(mvm, vif);
016d27e1
JB		 832
833 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
834 &mvm->status)) {
835 /*
836 * If we're restarting then the firmware will
837 * obviously have lost synchronisation with
838 * the AP. It will attempt to synchronise by
839 * itself, but we can make it more reliable by
840 * scheduling a session protection time event.
841 *
842 * The firmware needs to receive a beacon to
843 * catch up with synchronisation, use 110% of
844 * the beacon interval.
845 *
846 * Set a large maximum delay to allow for more
847 * than a single interface.
848 */
849 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
850 iwl_mvm_protect_session(mvm, vif, dur, dur,
851 5 * dur);
852 }
1f3b0ff8
LE		 853
854 iwl_mvm_sf_update(mvm, vif, false);
8ca151b5 855 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 856 /*
857 * If update fails - SF might be running in associated
858 * mode while disassociated - which is forbidden.
859 */
860 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
861 "Failed to update SF upon disassociation\n");
862
8ca151b5
JB		 863 /* remove AP station now that the MAC is unassoc */
864 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
865 if (ret)
866 IWL_ERR(mvm, "failed to remove AP station\n");
867 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
868 /* remove quota for this interface */
869 ret = iwl_mvm_update_quotas(mvm, NULL);
870 if (ret)
871 IWL_ERR(mvm, "failed to update quotas\n");
872 }
a20fd398
AO		 873
874 /* reset rssi values */
875 mvmvif->bf_data.ave_beacon_signal = 0;
876
e8e626ad
AB		 877 if (!(mvm->fw->ucode_capa.flags &
878 IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
e811ada7
AB		 879 /* Workaround for FW bug, otherwise FW disables device
880 * power save upon disassociation
881 */
882 ret = iwl_mvm_power_update_mode(mvm, vif);
883 if (ret)
884 IWL_ERR(mvm, "failed to update power mode\n");
885 }
8e484f0b 886 iwl_mvm_bt_coex_vif_change(mvm);
989c6505 887 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 888 /*
889 * We received a beacon _after_ association so
890 * remove the session protection.
891 */
892 iwl_mvm_remove_time_event(mvm, mvmvif,
893 &mvmvif->time_event_data);
e3c588ec 894 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_QOS)) {
4bf881f5
AB		 895 ret = iwl_mvm_power_update_mode(mvm, vif);
896 if (ret)
897 IWL_ERR(mvm, "failed to update power mode\n");
8ca151b5 898 }
88f2fd73
MG		 899 if (changes & BSS_CHANGED_TXPOWER) {
900 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
901 bss_conf->txpower);
902 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
903 }
a20fd398
AO		 904
905 if (changes & BSS_CHANGED_CQM) {
906 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
907 /* reset cqm events tracking */
908 mvmvif->bf_data.last_cqm_event = 0;
909 ret = iwl_mvm_update_beacon_filter(mvm, vif);
910 if (ret)
911 IWL_ERR(mvm, "failed to update CQM thresholds\n");
912 }
8ca151b5
JB		 913}
914
5023d966
JB		 915static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
916 struct ieee80211_vif *vif)
8ca151b5
JB		 917{
918 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
919 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
920 int ret;
921
922 mutex_lock(&mvm->mutex);
923
924 /* Send the beacon template */
925 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
926 if (ret)
927 goto out_unlock;
928
929 /* Add the mac context */
930 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
931 if (ret)
932 goto out_unlock;
933
934 /* Perform the binding */
935 ret = iwl_mvm_binding_add_vif(mvm, vif);
936 if (ret)
937 goto out_remove;
938
5023d966 939 mvmvif->ap_ibss_active = true;
8ca151b5
JB		 940
941 /* Send the bcast station. At this stage the TBTT and DTIM time events
942 * are added and applied to the scheduler */
943 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
944 if (ret)
945 goto out_unbind;
946
947 ret = iwl_mvm_update_quotas(mvm, vif);
948 if (ret)
949 goto out_rm_bcast;
950
5023d966 951 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5
JB		 952 if (vif->p2p && mvm->p2p_device_vif)
953 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
954
8e484f0b 955 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 956
8ca151b5
JB		 957 mutex_unlock(&mvm->mutex);
958 return 0;
959
960out_rm_bcast:
961 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
962out_unbind:
963 iwl_mvm_binding_remove_vif(mvm, vif);
964out_remove:
965 iwl_mvm_mac_ctxt_remove(mvm, vif);
966out_unlock:
967 mutex_unlock(&mvm->mutex);
968 return ret;
969}
970
5023d966
JB		 971static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
972 struct ieee80211_vif *vif)
8ca151b5
JB		 973{
974 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
975 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
976
38a12b5b
JB		 977 iwl_mvm_prepare_mac_removal(mvm, vif);
978
8ca151b5
JB		 979 mutex_lock(&mvm->mutex);
980
5023d966 981 mvmvif->ap_ibss_active = false;
8ca151b5 982
8e484f0b 983 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 984
5023d966 985 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5
JB		 986 if (vif->p2p && mvm->p2p_device_vif)
987 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
988
989 iwl_mvm_update_quotas(mvm, NULL);
990 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
991 iwl_mvm_binding_remove_vif(mvm, vif);
992 iwl_mvm_mac_ctxt_remove(mvm, vif);
993
994 mutex_unlock(&mvm->mutex);
995}
996
5023d966
JB		 997static void
998iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
999 struct ieee80211_vif *vif,
1000 struct ieee80211_bss_conf *bss_conf,
1001 u32 changes)
8ca151b5 1002{
8a5e3660
AA		 1003 enum ieee80211_bss_change ht_change = BSS_CHANGED_ERP_CTS_PROT |
1004 BSS_CHANGED_HT |
1005 BSS_CHANGED_BANDWIDTH;
1006 int ret;
1007
1008 if (changes & ht_change) {
1009 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1010 if (ret)
1011 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1012 }
1013
8ca151b5
JB		 1014 /* Need to send a new beacon template to the FW */
1015 if (changes & BSS_CHANGED_BEACON) {
1016 if (iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1017 IWL_WARN(mvm, "Failed updating beacon data\n");
1018 }
1019}
1020
1021static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1022 struct ieee80211_vif *vif,
1023 struct ieee80211_bss_conf *bss_conf,
1024 u32 changes)
1025{
1026 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1027
1028 mutex_lock(&mvm->mutex);
1029
1030 switch (vif->type) {
1031 case NL80211_IFTYPE_STATION:
1032 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1033 break;
1034 case NL80211_IFTYPE_AP:
5023d966
JB		 1035 case NL80211_IFTYPE_ADHOC:
1036 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 1037 break;
1038 default:
1039 /* shouldn't happen */
1040 WARN_ON_ONCE(1);
1041 }
1042
1043 mutex_unlock(&mvm->mutex);
1044}
1045
1046static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1047 struct ieee80211_vif *vif,
1048 struct cfg80211_scan_request *req)
1049{
1050 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1051 int ret;
1052
1053 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1054 return -EINVAL;
1055
1056 mutex_lock(&mvm->mutex);
1057
1058 if (mvm->scan_status == IWL_MVM_SCAN_NONE)
1059 ret = iwl_mvm_scan_request(mvm, vif, req);
1060 else
1061 ret = -EBUSY;
1062
1063 mutex_unlock(&mvm->mutex);
1064
1065 return ret;
1066}
1067
1068static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1069 struct ieee80211_vif *vif)
1070{
1071 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1072
1073 mutex_lock(&mvm->mutex);
1074
1075 iwl_mvm_cancel_scan(mvm);
1076
1077 mutex_unlock(&mvm->mutex);
1078}
1079
1080static void
1081iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1082 struct ieee80211_sta *sta, u16 tid,
1083 int num_frames,
1084 enum ieee80211_frame_release_type reason,
1085 bool more_data)
1086{
1087 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 1088
1089 /* TODO: how do we tell the fw to send frames for a specific TID */
1090
1091 /*
1092 * The fw will send EOSP notification when the last frame will be
1093 * transmitted.
1094 */
9cc40712 1095 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames);
8ca151b5
JB		 1096}
1097
1098static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1099 struct ieee80211_vif *vif,
1100 enum sta_notify_cmd cmd,
1101 struct ieee80211_sta *sta)
1102{
1103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 1104 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 1105
1106 switch (cmd) {
1107 case STA_NOTIFY_SLEEP:
e3d4bc8c 1108 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5
JB		 1109 ieee80211_sta_block_awake(hw, sta, true);
1110 /*
1111 * The fw updates the STA to be asleep. Tx packets on the Tx
1112 * queues to this station will not be transmitted. The fw will
1113 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1114 */
1115 break;
1116 case STA_NOTIFY_AWAKE:
881acd89 1117 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 1118 break;
9cc40712 1119 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 1120 break;
1121 default:
1122 break;
1123 }
1124}
1125
1126static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1127 struct ieee80211_vif *vif,
1128 struct ieee80211_sta *sta,
1129 enum ieee80211_sta_state old_state,
1130 enum ieee80211_sta_state new_state)
1131{
1132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1133 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1134 int ret;
1135
1136 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1137 sta->addr, old_state, new_state);
1138
1139 /* this would be a mac80211 bug ... but don't crash */
1140 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1141 return -EINVAL;
1142
1143 /* if a STA is being removed, reuse its ID */
1144 flush_work(&mvm->sta_drained_wk);
1145
1146 mutex_lock(&mvm->mutex);
1147 if (old_state == IEEE80211_STA_NOTEXIST &&
1148 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 1149 /*
1150 * Firmware bug - it'll crash if the beacon interval is less
1151 * than 16. We can't avoid connecting at all, so refuse the
1152 * station state change, this will cause mac80211 to abandon
1153 * attempts to connect to this AP, and eventually wpa_s will
1154 * blacklist the AP...
1155 */
1156 if (vif->type == NL80211_IFTYPE_STATION &&
1157 vif->bss_conf.beacon_int < 16) {
1158 IWL_ERR(mvm,
1159 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1160 sta->addr, vif->bss_conf.beacon_int);
1161 ret = -EINVAL;
1162 goto out_unlock;
1163 }
8ca151b5
JB		 1164 ret = iwl_mvm_add_sta(mvm, vif, sta);
1165 } else if (old_state == IEEE80211_STA_NONE &&
1166 new_state == IEEE80211_STA_AUTH) {
1167 ret = 0;
1168 } else if (old_state == IEEE80211_STA_AUTH &&
1169 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 1170 ret = iwl_mvm_update_sta(mvm, vif, sta);
1171 if (ret == 0)
1172 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 1173 mvmvif->phy_ctxt->channel->band,
1174 true);
8ca151b5
JB		 1175 } else if (old_state == IEEE80211_STA_ASSOC &&
1176 new_state == IEEE80211_STA_AUTHORIZED) {
7df15b1e
HG		 1177 /* enable beacon filtering */
1178 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif));
8ca151b5
JB		 1179 ret = 0;
1180 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1181 new_state == IEEE80211_STA_ASSOC) {
7df15b1e
HG		 1182 /* disable beacon filtering */
1183 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif));
8ca151b5
JB		 1184 ret = 0;
1185 } else if (old_state == IEEE80211_STA_ASSOC &&
1186 new_state == IEEE80211_STA_AUTH) {
1187 ret = 0;
1188 } else if (old_state == IEEE80211_STA_AUTH &&
1189 new_state == IEEE80211_STA_NONE) {
1190 ret = 0;
1191 } else if (old_state == IEEE80211_STA_NONE &&
1192 new_state == IEEE80211_STA_NOTEXIST) {
1193 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1194 } else {
1195 ret = -EIO;
1196 }
48bc1307 1197 out_unlock:
8ca151b5
JB		 1198 mutex_unlock(&mvm->mutex);
1199
1200 return ret;
1201}
1202
1203static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1204{
1205 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1206
1207 mvm->rts_threshold = value;
1208
1209 return 0;
1210}
1211
1f3b0ff8
LE		 1212static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1213 struct ieee80211_vif *vif,
1214 struct ieee80211_sta *sta, u32 changed)
1215{
1216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1217
1218 if (vif->type == NL80211_IFTYPE_STATION &&
1219 changed & IEEE80211_RC_NSS_CHANGED)
1220 iwl_mvm_sf_update(mvm, vif, false);
1221}
1222
8ca151b5
JB		 1223static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1224 struct ieee80211_vif *vif, u16 ac,
1225 const struct ieee80211_tx_queue_params *params)
1226{
1227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1228 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1229
1230 mvmvif->queue_params[ac] = *params;
1231
1232 /*
1233 * No need to update right away, we'll get BSS_CHANGED_QOS
1234 * The exception is P2P_DEVICE interface which needs immediate update.
1235 */
1236 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1237 int ret;
1238
1239 mutex_lock(&mvm->mutex);
1240 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1241 mutex_unlock(&mvm->mutex);
1242 return ret;
1243 }
1244 return 0;
1245}
1246
1247static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1248 struct ieee80211_vif *vif)
1249{
1250 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1251 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1252 200 + vif->bss_conf.beacon_int);
1253 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1254 100 + vif->bss_conf.beacon_int);
1255
1256 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1257 return;
1258
1259 mutex_lock(&mvm->mutex);
1260 /* Try really hard to protect the session and hear a beacon */
016d27e1 1261 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
8ca151b5
JB		 1262 mutex_unlock(&mvm->mutex);
1263}
1264
35a000b7
DS		 1265static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1266 struct ieee80211_vif *vif,
1267 struct cfg80211_sched_scan_request *req,
1268 struct ieee80211_sched_scan_ies *ies)
1269{
1270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1271 int ret;
1272
1273 mutex_lock(&mvm->mutex);
1274
1275 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1276 IWL_DEBUG_SCAN(mvm,
1277 "SCHED SCAN request during internal scan - abort\n");
1278 ret = -EBUSY;
1279 goto out;
1280 }
1281
1282 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1283
1284 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1285 if (ret)
1286 goto err;
1287
1288 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1289 if (ret)
1290 goto err;
1291
1292 ret = iwl_mvm_sched_scan_start(mvm, req);
1293 if (!ret)
1294 goto out;
1295err:
1296 mvm->scan_status = IWL_MVM_SCAN_NONE;
1297out:
1298 mutex_unlock(&mvm->mutex);
1299 return ret;
1300}
1301
1302static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1303 struct ieee80211_vif *vif)
1304{
1305 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1306
1307 mutex_lock(&mvm->mutex);
1308 iwl_mvm_sched_scan_stop(mvm);
1309 mutex_unlock(&mvm->mutex);
1310}
1311
8ca151b5
JB		 1312static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1313 enum set_key_cmd cmd,
1314 struct ieee80211_vif *vif,
1315 struct ieee80211_sta *sta,
1316 struct ieee80211_key_conf *key)
1317{
1318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1319 int ret;
1320
1321 if (iwlwifi_mod_params.sw_crypto) {
1322 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1323 return -EOPNOTSUPP;
1324 }
1325
1326 switch (key->cipher) {
1327 case WLAN_CIPHER_SUITE_TKIP:
1328 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1329 /* fall-through */
1330 case WLAN_CIPHER_SUITE_CCMP:
1331 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1332 break;
1333 case WLAN_CIPHER_SUITE_AES_CMAC:
1334 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1335 break;
1336 case WLAN_CIPHER_SUITE_WEP40:
1337 case WLAN_CIPHER_SUITE_WEP104:
1338 /*
1339 * Support for TX only, at least for now, so accept
1340 * the key and do nothing else. Then mac80211 will
1341 * pass it for TX but we don't have to use it for RX.
1342 */
1343 return 0;
1344 default:
1345 return -EOPNOTSUPP;
1346 }
1347
1348 mutex_lock(&mvm->mutex);
1349
1350 switch (cmd) {
1351 case SET_KEY:
5023d966
JB		 1352 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1353 vif->type == NL80211_IFTYPE_AP) && !sta) {
1354 /*
1355 * GTK on AP interface is a TX-only key, return 0;
1356 * on IBSS they're per-station and because we're lazy
1357 * we don't support them for RX, so do the same.
1358 */
6caffd4f
JB		 1359 ret = 0;
1360 key->hw_key_idx = STA_KEY_IDX_INVALID;
1361 break;
1362 }
1363
8ca151b5
JB		 1364 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1365 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1366 if (ret) {
1367 IWL_WARN(mvm, "set key failed\n");
1368 /*
1369 * can't add key for RX, but we don't need it
1370 * in the device for TX so still return 0
1371 */
6caffd4f 1372 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 1373 ret = 0;
1374 }
1375
1376 break;
1377 case DISABLE_KEY:
6caffd4f
JB		 1378 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1379 ret = 0;
1380 break;
1381 }
1382
8ca151b5
JB		 1383 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1384 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1385 break;
1386 default:
1387 ret = -EINVAL;
1388 }
1389
1390 mutex_unlock(&mvm->mutex);
1391 return ret;
1392}
1393
1394static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1395 struct ieee80211_vif *vif,
1396 struct ieee80211_key_conf *keyconf,
1397 struct ieee80211_sta *sta,
1398 u32 iv32, u16 *phase1key)
1399{
1400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1401
5023d966
JB		 1402 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1403 return;
1404
8ca151b5
JB		 1405 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1406}
1407
1408
1409static int iwl_mvm_roc(struct ieee80211_hw *hw,
1410 struct ieee80211_vif *vif,
1411 struct ieee80211_channel *channel,
d339d5ca
IP		 1412 int duration,
1413 enum ieee80211_roc_type type)
8ca151b5
JB		 1414{
1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 1416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 1417 struct cfg80211_chan_def chandef;
31d385ae
IP		 1418 struct iwl_mvm_phy_ctxt *phy_ctxt;
1419 int ret, i;
1420
1421 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1422 duration, type);
8ca151b5
JB		 1423
1424 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1425 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1426 return -EINVAL;
1427 }
1428
8ca151b5
JB		 1429 mutex_lock(&mvm->mutex);
1430
31d385ae
IP		 1431 for (i = 0; i < NUM_PHY_CTX; i++) {
1432 phy_ctxt = &mvm->phy_ctxts[i];
1433 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1434 continue;
1435
1436 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1437 /*
1438 * Unbind the P2P_DEVICE from the current PHY context,
1439 * and if the PHY context is not used remove it.
1440 */
1441 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1442 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1443 goto out_unlock;
1444
1445 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1446
1447 /* Bind the P2P_DEVICE to the current PHY Context */
1448 mvmvif->phy_ctxt = phy_ctxt;
1449
1450 ret = iwl_mvm_binding_add_vif(mvm, vif);
1451 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1452 goto out_unlock;
1453
1454 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1455 goto schedule_time_event;
1456 }
1457 }
1458
1459 /* Need to update the PHY context only if the ROC channel changed */
1460 if (channel == mvmvif->phy_ctxt->channel)
1461 goto schedule_time_event;
1462
8ca151b5 1463 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 1464
31d385ae
IP		 1465 /*
1466 * Change the PHY context configuration as it is currently referenced
1467 * only by the P2P Device MAC
1468 */
1469 if (mvmvif->phy_ctxt->ref == 1) {
1470 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1471 &chandef, 1, 1);
1472 if (ret)
1473 goto out_unlock;
1474 } else {
1475 /*
1476 * The PHY context is shared with other MACs. Need to remove the
1477 * P2P Device from the binding, allocate an new PHY context and
1478 * create a new binding
1479 */
1480 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1481 if (!phy_ctxt) {
1482 ret = -ENOSPC;
1483 goto out_unlock;
1484 }
1485
1486 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1487 1, 1);
1488 if (ret) {
1489 IWL_ERR(mvm, "Failed to change PHY context\n");
1490 goto out_unlock;
1491 }
1492
1493 /* Unbind the P2P_DEVICE from the current PHY context */
1494 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1495 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1496 goto out_unlock;
1497
1498 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1499
1500 /* Bind the P2P_DEVICE to the new allocated PHY context */
1501 mvmvif->phy_ctxt = phy_ctxt;
1502
1503 ret = iwl_mvm_binding_add_vif(mvm, vif);
1504 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1505 goto out_unlock;
1506
1507 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1508 }
1509
1510schedule_time_event:
8ca151b5 1511 /* Schedule the time events */
e635c797 1512 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 1513
31d385ae 1514out_unlock:
8ca151b5
JB		 1515 mutex_unlock(&mvm->mutex);
1516 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 1517 return ret;
1518}
1519
1520static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1521{
1522 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1523
1524 IWL_DEBUG_MAC80211(mvm, "enter\n");
1525
1526 mutex_lock(&mvm->mutex);
1527 iwl_mvm_stop_p2p_roc(mvm);
1528 mutex_unlock(&mvm->mutex);
1529
1530 IWL_DEBUG_MAC80211(mvm, "leave\n");
1531 return 0;
1532}
1533
1534static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
1535 struct ieee80211_chanctx_conf *ctx)
1536{
1537 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 1538 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1539 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 1540 int ret;
1541
53a9d61e 1542 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 1543
8ca151b5 1544 mutex_lock(&mvm->mutex);
fe0f2de3
IP		 1545 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1546 if (!phy_ctxt) {
1547 ret = -ENOSPC;
1548 goto out;
1549 }
8ca151b5 1550
53a9d61e
IP		 1551 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1552 ctx->rx_chains_static,
1553 ctx->rx_chains_dynamic);
fe0f2de3
IP		 1554 if (ret) {
1555 IWL_ERR(mvm, "Failed to add PHY context\n");
1556 goto out;
1557 }
1558
53a9d61e 1559 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 1560 *phy_ctxt_id = phy_ctxt->id;
1561out:
8ca151b5
JB		 1562 mutex_unlock(&mvm->mutex);
1563 return ret;
1564}
1565
1566static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
1567 struct ieee80211_chanctx_conf *ctx)
1568{
1569 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 1570 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1571 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 1572
1573 mutex_lock(&mvm->mutex);
fe0f2de3 1574 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
8ca151b5
JB		 1575 mutex_unlock(&mvm->mutex);
1576}
1577
1578static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
1579 struct ieee80211_chanctx_conf *ctx,
1580 u32 changed)
1581{
1582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 1583 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1584 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 1585
31d385ae
IP		 1586 if (WARN_ONCE((phy_ctxt->ref > 1) &&
1587 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
1588 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
1589 IEEE80211_CHANCTX_CHANGE_RADAR)),
1590 "Cannot change PHY. Ref=%d, changed=0x%X\n",
1591 phy_ctxt->ref, changed))
1592 return;
1593
8ca151b5
JB		 1594 mutex_lock(&mvm->mutex);
1595 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
1596 ctx->rx_chains_static,
1597 ctx->rx_chains_dynamic);
8e484f0b 1598 iwl_mvm_bt_coex_vif_change(mvm);
8ca151b5
JB		 1599 mutex_unlock(&mvm->mutex);
1600}
1601
1602static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
1603 struct ieee80211_vif *vif,
1604 struct ieee80211_chanctx_conf *ctx)
1605{
1606 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 1607 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
1608 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 1609 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1610 int ret;
1611
1612 mutex_lock(&mvm->mutex);
1613
fe0f2de3 1614 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 1615
1616 switch (vif->type) {
1617 case NL80211_IFTYPE_AP:
5023d966 1618 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 1619 /*
1620 * The AP binding flow is handled as part of the start_ap flow
5023d966 1621 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 1622 */
1623 ret = 0;
1624 goto out_unlock;
1625 case NL80211_IFTYPE_STATION:
8ca151b5
JB		 1626 case NL80211_IFTYPE_MONITOR:
1627 break;
1628 default:
1629 ret = -EINVAL;
1630 goto out_unlock;
1631 }
1632
1633 ret = iwl_mvm_binding_add_vif(mvm, vif);
1634 if (ret)
1635 goto out_unlock;
1636
1637 /*
1638 * Setting the quota at this stage is only required for monitor
1639 * interfaces. For the other types, the bss_info changed flow
1640 * will handle quota settings.
1641 */
1642 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 1643 mvmvif->monitor_active = true;
8ca151b5
JB		 1644 ret = iwl_mvm_update_quotas(mvm, vif);
1645 if (ret)
1646 goto out_remove_binding;
1647 }
1648
1649 goto out_unlock;
1650
1651 out_remove_binding:
1652 iwl_mvm_binding_remove_vif(mvm, vif);
1653 out_unlock:
1654 mutex_unlock(&mvm->mutex);
1655 if (ret)
1656 mvmvif->phy_ctxt = NULL;
1657 return ret;
1658}
1659
1660static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
1661 struct ieee80211_vif *vif,
1662 struct ieee80211_chanctx_conf *ctx)
1663{
1664 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1665 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1666
1667 mutex_lock(&mvm->mutex);
1668
1669 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
1670
8ca151b5 1671 switch (vif->type) {
5023d966
JB		 1672 case NL80211_IFTYPE_AP:
1673 case NL80211_IFTYPE_ADHOC:
1674 goto out_unlock;
8ca151b5 1675 case NL80211_IFTYPE_MONITOR:
1e1391ca
IP		 1676 mvmvif->monitor_active = false;
1677 iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1678 break;
1679 default:
1680 break;
1681 }
1682
1e1391ca 1683 iwl_mvm_binding_remove_vif(mvm, vif);
8ca151b5
JB		 1684out_unlock:
1685 mvmvif->phy_ctxt = NULL;
1686 mutex_unlock(&mvm->mutex);
1687}
1688
1689static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
1690 struct ieee80211_sta *sta,
1691 bool set)
1692{
1693 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1694 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1695
1696 if (!mvm_sta || !mvm_sta->vif) {
1697 IWL_ERR(mvm, "Station is not associated to a vif\n");
1698 return -EINVAL;
1699 }
1700
1701 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
1702}
1703
507cadf2
DS		 1704#ifdef CONFIG_NL80211_TESTMODE
1705static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
1706 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
1707 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 1708 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 1709};
1710
1711static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
1712 struct ieee80211_vif *vif,
1713 void *data, int len)
1714{
1715 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
1716 int err;
1717 u32 noa_duration;
1718
1719 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
1720 if (err)
1721 return err;
1722
1723 if (!tb[IWL_MVM_TM_ATTR_CMD])
1724 return -EINVAL;
1725
1726 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
1727 case IWL_MVM_TM_CMD_SET_NOA:
1728 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
1729 !vif->bss_conf.enable_beacon ||
1730 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
1731 return -EINVAL;
1732
1733 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
1734 if (noa_duration >= vif->bss_conf.beacon_int)
1735 return -EINVAL;
1736
1737 mvm->noa_duration = noa_duration;
1738 mvm->noa_vif = vif;
1739
1740 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 1741 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
1742 /* must be associated client vif - ignore authorized */
1743 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
1744 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
1745 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
1746 return -EINVAL;
1747
1748 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
1749 return iwl_mvm_enable_beacon_filter(mvm, vif);
1750 return iwl_mvm_disable_beacon_filter(mvm, vif);
507cadf2
DS		 1751 }
1752
1753 return -EOPNOTSUPP;
1754}
1755
1756static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
1757 struct ieee80211_vif *vif,
1758 void *data, int len)
1759{
1760 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1761 int err;
1762
1763 mutex_lock(&mvm->mutex);
1764 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
1765 mutex_unlock(&mvm->mutex);
1766
1767 return err;
1768}
1769#endif
1770
8ca151b5
JB		 1771struct ieee80211_ops iwl_mvm_hw_ops = {
1772 .tx = iwl_mvm_mac_tx,
1773 .ampdu_action = iwl_mvm_mac_ampdu_action,
1774 .start = iwl_mvm_mac_start,
1775 .restart_complete = iwl_mvm_mac_restart_complete,
1776 .stop = iwl_mvm_mac_stop,
1777 .add_interface = iwl_mvm_mac_add_interface,
1778 .remove_interface = iwl_mvm_mac_remove_interface,
1779 .config = iwl_mvm_mac_config,
1780 .configure_filter = iwl_mvm_configure_filter,
1781 .bss_info_changed = iwl_mvm_bss_info_changed,
1782 .hw_scan = iwl_mvm_mac_hw_scan,
1783 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1784 .sta_state = iwl_mvm_mac_sta_state,
1785 .sta_notify = iwl_mvm_mac_sta_notify,
1786 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
1787 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 1788 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 1789 .conf_tx = iwl_mvm_mac_conf_tx,
1790 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
35a000b7
DS		 1791 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
1792 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 1793 .set_key = iwl_mvm_mac_set_key,
1794 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
1795 .remain_on_channel = iwl_mvm_roc,
1796 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 1797 .add_chanctx = iwl_mvm_add_chanctx,
1798 .remove_chanctx = iwl_mvm_remove_chanctx,
1799 .change_chanctx = iwl_mvm_change_chanctx,
1800 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
1801 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
1802
5023d966
JB		 1803 .start_ap = iwl_mvm_start_ap_ibss,
1804 .stop_ap = iwl_mvm_stop_ap_ibss,
1805 .join_ibss = iwl_mvm_start_ap_ibss,
1806 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 1807
1808 .set_tim = iwl_mvm_set_tim,
1809
507cadf2
DS		 1810 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
1811
8ca151b5
JB		 1812#ifdef CONFIG_PM_SLEEP
1813 /* look at d3.c */
1814 .suspend = iwl_mvm_suspend,
1815 .resume = iwl_mvm_resume,
1816 .set_wakeup = iwl_mvm_set_wakeup,
1817 .set_rekey_data = iwl_mvm_set_rekey_data,
1818#if IS_ENABLED(CONFIG_IPV6)
1819 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
1820#endif
1821 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
1822#endif
1823};
A mirror of Linus' kernel repository