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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
[linux-2.6/btrfs-unstable.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
blobc2ab6a3318cb702785d30368c53f7d0986be551d
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 - 2014 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
25 * in the file called COPYING.
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 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/skbuff.h>
66 #include <linux/netdevice.h>
67 #include <linux/etherdevice.h>
68 #include <linux/ip.h>
69 #include <linux/if_arp.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
72 #include <net/tcp.h>
73
74 #include "iwl-op-mode.h"
75 #include "iwl-io.h"
76 #include "mvm.h"
77 #include "sta.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "iwl-phy-db.h"
82 #include "testmode.h"
83
84 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
85 {
86 .max = 1,
87 .types = BIT(NL80211_IFTYPE_STATION),
88 },
89 {
90 .max = 1,
91 .types = BIT(NL80211_IFTYPE_AP) |
92 BIT(NL80211_IFTYPE_P2P_CLIENT) |
93 BIT(NL80211_IFTYPE_P2P_GO),
94 },
95 {
96 .max = 1,
97 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
98 },
99 };
100
101 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
102 {
103 .num_different_channels = 1,
104 .max_interfaces = 3,
105 .limits = iwl_mvm_limits,
106 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
107 },
108 };
109
110 #ifdef CONFIG_PM_SLEEP
111 static const struct nl80211_wowlan_tcp_data_token_feature
112 iwl_mvm_wowlan_tcp_token_feature = {
113 .min_len = 0,
114 .max_len = 255,
115 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
116 };
117
118 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
119 .tok = &iwl_mvm_wowlan_tcp_token_feature,
120 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
121 sizeof(struct ethhdr) -
122 sizeof(struct iphdr) -
123 sizeof(struct tcphdr),
124 .data_interval_max = 65535, /* __le16 in API */
125 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
129 .seq = true,
130 };
131 #endif
132
133 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
134 /*
135 * Use the reserved field to indicate magic values.
136 * these values will only be used internally by the driver,
137 * and won't make it to the fw (reserved will be 0).
138 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
139 * be the vif's ip address. in case there is not a single
140 * ip address (0, or more than 1), this attribute will
141 * be skipped.
142 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
143 * the LSB bytes of the vif's mac address
144 */
145 enum {
146 BC_FILTER_MAGIC_NONE = 0,
147 BC_FILTER_MAGIC_IP,
148 BC_FILTER_MAGIC_MAC,
149 };
150
151 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
152 {
153 /* arp */
154 .discard = 0,
155 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
156 .attrs = {
157 {
158 /* frame type - arp, hw type - ethernet */
159 .offset_type =
160 BCAST_FILTER_OFFSET_PAYLOAD_START,
161 .offset = sizeof(rfc1042_header),
162 .val = cpu_to_be32(0x08060001),
163 .mask = cpu_to_be32(0xffffffff),
164 },
165 {
166 /* arp dest ip */
167 .offset_type =
168 BCAST_FILTER_OFFSET_PAYLOAD_START,
169 .offset = sizeof(rfc1042_header) + 2 +
170 sizeof(struct arphdr) +
171 ETH_ALEN + sizeof(__be32) +
172 ETH_ALEN,
173 .mask = cpu_to_be32(0xffffffff),
174 /* mark it as special field */
175 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
176 },
177 },
178 },
179 {
180 /* dhcp offer bcast */
181 .discard = 0,
182 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
183 .attrs = {
184 {
185 /* udp dest port - 68 (bootp client)*/
186 .offset_type = BCAST_FILTER_OFFSET_IP_END,
187 .offset = offsetof(struct udphdr, dest),
188 .val = cpu_to_be32(0x00440000),
189 .mask = cpu_to_be32(0xffff0000),
190 },
191 {
192 /* dhcp - lsb bytes of client hw address */
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = 38,
195 .mask = cpu_to_be32(0xffffffff),
196 /* mark it as special field */
197 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
198 },
199 },
200 },
201 /* last filter must be empty */
202 {},
203 };
204 #endif
205
206 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
207 {
208 if (!mvm->trans->cfg->d0i3)
209 return;
210
211 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
212 WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap));
213 iwl_trans_ref(mvm->trans);
214 }
215
216 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
217 {
218 if (!mvm->trans->cfg->d0i3)
219 return;
220
221 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
222 WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap));
223 iwl_trans_unref(mvm->trans);
224 }
225
226 static void
227 iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref)
228 {
229 int i;
230
231 if (!mvm->trans->cfg->d0i3)
232 return;
233
234 for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) {
235 if (ref == i)
236 continue;
237
238 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i);
239 clear_bit(i, mvm->ref_bitmap);
240 iwl_trans_unref(mvm->trans);
241 }
242 }
243
244 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
245 {
246 int i;
247
248 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
249 for (i = 0; i < NUM_PHY_CTX; i++) {
250 mvm->phy_ctxts[i].id = i;
251 mvm->phy_ctxts[i].ref = 0;
252 }
253 }
254
255 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
256 {
257 /* we create the 802.11 header and SSID element */
258 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
259 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
260 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
261 }
262
263 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
264 {
265 struct ieee80211_hw *hw = mvm->hw;
266 int num_mac, ret, i;
267
268 /* Tell mac80211 our characteristics */
269 hw->flags = IEEE80211_HW_SIGNAL_DBM |
270 IEEE80211_HW_SPECTRUM_MGMT |
271 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
272 IEEE80211_HW_QUEUE_CONTROL |
273 IEEE80211_HW_WANT_MONITOR_VIF |
274 IEEE80211_HW_SUPPORTS_PS |
275 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
276 IEEE80211_HW_AMPDU_AGGREGATION |
277 IEEE80211_HW_TIMING_BEACON_ONLY |
278 IEEE80211_HW_CONNECTION_MONITOR |
279 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
280 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
281
282 hw->queues = mvm->first_agg_queue;
283 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
284 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
285 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
286 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
287 hw->rate_control_algorithm = "iwl-mvm-rs";
288
289 /*
290 * Enable 11w if advertised by firmware and software crypto
291 * is not enabled (as the firmware will interpret some mgmt
292 * packets, so enabling it with software crypto isn't safe)
293 */
294 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
295 !iwlwifi_mod_params.sw_crypto)
296 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
297
298 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
299 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
300 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
301 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
302 }
303
304 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
305 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
306 hw->chanctx_data_size = sizeof(u16);
307
308 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
309 BIT(NL80211_IFTYPE_P2P_CLIENT) |
310 BIT(NL80211_IFTYPE_AP) |
311 BIT(NL80211_IFTYPE_P2P_GO) |
312 BIT(NL80211_IFTYPE_P2P_DEVICE);
313
314 /* IBSS has bugs in older versions */
315 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
316 hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
317
318 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
319 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
320 REGULATORY_DISABLE_BEACON_HINTS;
321
322 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
323 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
324
325 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
326 hw->wiphy->n_iface_combinations =
327 ARRAY_SIZE(iwl_mvm_iface_combinations);
328
329 hw->wiphy->max_remain_on_channel_duration = 10000;
330 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
331
332 /* Extract MAC address */
333 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
334 hw->wiphy->addresses = mvm->addresses;
335 hw->wiphy->n_addresses = 1;
336
337 /* Extract additional MAC addresses if available */
338 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
339 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
340
341 for (i = 1; i < num_mac; i++) {
342 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
343 ETH_ALEN);
344 mvm->addresses[i].addr[5]++;
345 hw->wiphy->n_addresses++;
346 }
347
348 iwl_mvm_reset_phy_ctxts(mvm);
349
350 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
351
352 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
353
354 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
355 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
356 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
357 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
358 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
359 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
360
361 hw->wiphy->hw_version = mvm->trans->hw_id;
362
363 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
364 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
365 else
366 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
367
368 if (0 && mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
369 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
370 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
371 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
372 /* we create the 802.11 header and zero length SSID IE. */
373 hw->wiphy->max_sched_scan_ie_len =
374 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
375 }
376
377 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
378 NL80211_FEATURE_P2P_GO_OPPPS |
379 NL80211_FEATURE_LOW_PRIORITY_SCAN;
380
381 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
382
383 /* currently FW API supports only one optional cipher scheme */
384 if (mvm->fw->cs[0].cipher) {
385 mvm->hw->n_cipher_schemes = 1;
386 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
387 }
388
389 #ifdef CONFIG_PM_SLEEP
390 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
391 mvm->trans->ops->d3_suspend &&
392 mvm->trans->ops->d3_resume &&
393 device_can_wakeup(mvm->trans->dev)) {
394 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
395 WIPHY_WOWLAN_DISCONNECT |
396 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
397 WIPHY_WOWLAN_RFKILL_RELEASE;
398 if (!iwlwifi_mod_params.sw_crypto)
399 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
400 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
401 WIPHY_WOWLAN_4WAY_HANDSHAKE;
402
403 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
404 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
405 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
406 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
407 hw->wiphy->wowlan = &mvm->wowlan;
408 }
409 #endif
410
411 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
412 /* assign default bcast filtering configuration */
413 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
414 #endif
415
416 ret = iwl_mvm_leds_init(mvm);
417 if (ret)
418 return ret;
419
420 ret = ieee80211_register_hw(mvm->hw);
421 if (ret)
422 iwl_mvm_leds_exit(mvm);
423
424 return ret;
425 }
426
427 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
428 struct ieee80211_tx_control *control,
429 struct sk_buff *skb)
430 {
431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
432 struct ieee80211_sta *sta = control->sta;
433 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
434 struct ieee80211_hdr *hdr = (void *)skb->data;
435
436 if (iwl_mvm_is_radio_killed(mvm)) {
437 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
438 goto drop;
439 }
440
441 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
442 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
443 goto drop;
444
445 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
446 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
447 ieee80211_is_mgmt(hdr->frame_control) &&
448 !ieee80211_is_deauth(hdr->frame_control) &&
449 !ieee80211_is_disassoc(hdr->frame_control) &&
450 !ieee80211_is_action(hdr->frame_control)))
451 sta = NULL;
452
453 if (sta) {
454 if (iwl_mvm_tx_skb(mvm, skb, sta))
455 goto drop;
456 return;
457 }
458
459 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
460 goto drop;
461 return;
462 drop:
463 ieee80211_free_txskb(hw, skb);
464 }
465
466 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
467 {
468 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
469 return false;
470 return true;
471 }
472
473 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
474 {
475 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
476 return false;
477 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
478 return true;
479
480 /* enabled by default */
481 return true;
482 }
483
484 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
485 struct ieee80211_vif *vif,
486 enum ieee80211_ampdu_mlme_action action,
487 struct ieee80211_sta *sta, u16 tid,
488 u16 *ssn, u8 buf_size)
489 {
490 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
491 int ret;
492
493 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
494 sta->addr, tid, action);
495
496 if (!(mvm->nvm_data->sku_cap_11n_enable))
497 return -EACCES;
498
499 mutex_lock(&mvm->mutex);
500
501 switch (action) {
502 case IEEE80211_AMPDU_RX_START:
503 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
504 ret = -EINVAL;
505 break;
506 }
507 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
508 break;
509 case IEEE80211_AMPDU_RX_STOP:
510 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
511 break;
512 case IEEE80211_AMPDU_TX_START:
513 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
514 ret = -EINVAL;
515 break;
516 }
517 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
518 break;
519 case IEEE80211_AMPDU_TX_STOP_CONT:
520 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
521 break;
522 case IEEE80211_AMPDU_TX_STOP_FLUSH:
523 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
524 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
525 break;
526 case IEEE80211_AMPDU_TX_OPERATIONAL:
527 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
528 break;
529 default:
530 WARN_ON_ONCE(1);
531 ret = -EINVAL;
532 break;
533 }
534 mutex_unlock(&mvm->mutex);
535
536 return ret;
537 }
538
539 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
540 struct ieee80211_vif *vif)
541 {
542 struct iwl_mvm *mvm = data;
543 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
544
545 mvmvif->uploaded = false;
546 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
547
548 /* does this make sense at all? */
549 mvmvif->color++;
550
551 spin_lock_bh(&mvm->time_event_lock);
552 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
553 spin_unlock_bh(&mvm->time_event_lock);
554
555 mvmvif->phy_ctxt = NULL;
556 }
557
558 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
559 {
560 iwl_trans_stop_device(mvm->trans);
561
562 mvm->scan_status = IWL_MVM_SCAN_NONE;
563
564 /* just in case one was running */
565 ieee80211_remain_on_channel_expired(mvm->hw);
566
567 ieee80211_iterate_active_interfaces_atomic(
568 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
569 iwl_mvm_cleanup_iterator, mvm);
570
571 mvm->p2p_device_vif = NULL;
572 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
573
574 iwl_mvm_reset_phy_ctxts(mvm);
575 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
576 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
577
578 ieee80211_wake_queues(mvm->hw);
579
580 /* cleanup all stale references (scan, roc), but keep the
581 * ucode_down ref until reconfig is complete */
582 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
583
584 mvm->vif_count = 0;
585 mvm->rx_ba_sessions = 0;
586 }
587
588 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
589 {
590 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
591 int ret;
592
593 mutex_lock(&mvm->mutex);
594
595 /* Clean up some internal and mac80211 state on restart */
596 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
597 iwl_mvm_restart_cleanup(mvm);
598
599 ret = iwl_mvm_up(mvm);
600 mutex_unlock(&mvm->mutex);
601
602 return ret;
603 }
604
605 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
606 {
607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
608 int ret;
609
610 mutex_lock(&mvm->mutex);
611
612 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
613 ret = iwl_mvm_update_quotas(mvm, NULL);
614 if (ret)
615 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
616 ret);
617
618 /* allow transport/FW low power modes */
619 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
620
621 mutex_unlock(&mvm->mutex);
622 }
623
624 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
625 {
626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
627
628 flush_work(&mvm->d0i3_exit_work);
629 flush_work(&mvm->async_handlers_wk);
630
631 mutex_lock(&mvm->mutex);
632
633 /* disallow low power states when the FW is down */
634 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
635
636 /* async_handlers_wk is now blocked */
637
638 /*
639 * The work item could be running or queued if the
640 * ROC time event stops just as we get here.
641 */
642 cancel_work_sync(&mvm->roc_done_wk);
643
644 iwl_trans_stop_device(mvm->trans);
645
646 iwl_mvm_async_handlers_purge(mvm);
647 /* async_handlers_list is empty and will stay empty: HW is stopped */
648
649 /* the fw is stopped, the aux sta is dead: clean up driver state */
650 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
651
652 mutex_unlock(&mvm->mutex);
653
654 /*
655 * The worker might have been waiting for the mutex, let it run and
656 * discover that its list is now empty.
657 */
658 cancel_work_sync(&mvm->async_handlers_wk);
659 }
660
661 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
662 {
663 u16 i;
664
665 lockdep_assert_held(&mvm->mutex);
666
667 for (i = 0; i < NUM_PHY_CTX; i++)
668 if (!mvm->phy_ctxts[i].ref)
669 return &mvm->phy_ctxts[i];
670
671 IWL_ERR(mvm, "No available PHY context\n");
672 return NULL;
673 }
674
675 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
676 s8 tx_power)
677 {
678 /* FW is in charge of regulatory enforcement */
679 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
680 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
681 .pwr_restriction = cpu_to_le16(tx_power),
682 };
683
684 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
685 sizeof(reduce_txpwr_cmd),
686 &reduce_txpwr_cmd);
687 }
688
689 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
690 struct ieee80211_vif *vif)
691 {
692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
694 int ret;
695
696 /*
697 * Not much to do here. The stack will not allow interface
698 * types or combinations that we didn't advertise, so we
699 * don't really have to check the types.
700 */
701
702 mutex_lock(&mvm->mutex);
703
704 /* Allocate resources for the MAC context, and add it to the fw */
705 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
706 if (ret)
707 goto out_unlock;
708
709 /* Counting number of interfaces is needed for legacy PM */
710 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
711 mvm->vif_count++;
712
713 /*
714 * The AP binding flow can be done only after the beacon
715 * template is configured (which happens only in the mac80211
716 * start_ap() flow), and adding the broadcast station can happen
717 * only after the binding.
718 * In addition, since modifying the MAC before adding a bcast
719 * station is not allowed by the FW, delay the adding of MAC context to
720 * the point where we can also add the bcast station.
721 * In short: there's not much we can do at this point, other than
722 * allocating resources :)
723 */
724 if (vif->type == NL80211_IFTYPE_AP ||
725 vif->type == NL80211_IFTYPE_ADHOC) {
726 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
727 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
728 qmask,
729 ieee80211_vif_type_p2p(vif));
730 if (ret) {
731 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
732 goto out_release;
733 }
734
735 iwl_mvm_vif_dbgfs_register(mvm, vif);
736 goto out_unlock;
737 }
738
739 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
740 if (ret)
741 goto out_release;
742
743 ret = iwl_mvm_power_update_mac(mvm, vif);
744 if (ret)
745 goto out_release;
746
747 /* beacon filtering */
748 ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
749 if (ret)
750 goto out_remove_mac;
751
752 if (!mvm->bf_allowed_vif &&
753 vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
754 mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BF_UPDATED){
755 mvm->bf_allowed_vif = mvmvif;
756 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
757 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
758 }
759
760 /*
761 * P2P_DEVICE interface does not have a channel context assigned to it,
762 * so a dedicated PHY context is allocated to it and the corresponding
763 * MAC context is bound to it at this stage.
764 */
765 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
766
767 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
768 if (!mvmvif->phy_ctxt) {
769 ret = -ENOSPC;
770 goto out_free_bf;
771 }
772
773 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
774 ret = iwl_mvm_binding_add_vif(mvm, vif);
775 if (ret)
776 goto out_unref_phy;
777
778 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
779 if (ret)
780 goto out_unbind;
781
782 /* Save a pointer to p2p device vif, so it can later be used to
783 * update the p2p device MAC when a GO is started/stopped */
784 mvm->p2p_device_vif = vif;
785 }
786
787 iwl_mvm_vif_dbgfs_register(mvm, vif);
788 goto out_unlock;
789
790 out_unbind:
791 iwl_mvm_binding_remove_vif(mvm, vif);
792 out_unref_phy:
793 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
794 out_free_bf:
795 if (mvm->bf_allowed_vif == mvmvif) {
796 mvm->bf_allowed_vif = NULL;
797 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
798 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
799 }
800 out_remove_mac:
801 mvmvif->phy_ctxt = NULL;
802 iwl_mvm_mac_ctxt_remove(mvm, vif);
803 out_release:
804 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
805 mvm->vif_count--;
806
807 iwl_mvm_mac_ctxt_release(mvm, vif);
808 out_unlock:
809 mutex_unlock(&mvm->mutex);
810
811 return ret;
812 }
813
814 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
815 struct ieee80211_vif *vif)
816 {
817 u32 tfd_msk = 0, ac;
818
819 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
820 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
821 tfd_msk |= BIT(vif->hw_queue[ac]);
822
823 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
824 tfd_msk |= BIT(vif->cab_queue);
825
826 if (tfd_msk) {
827 mutex_lock(&mvm->mutex);
828 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
829 mutex_unlock(&mvm->mutex);
830 }
831
832 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
833 /*
834 * Flush the ROC worker which will flush the OFFCHANNEL queue.
835 * We assume here that all the packets sent to the OFFCHANNEL
836 * queue are sent in ROC session.
837 */
838 flush_work(&mvm->roc_done_wk);
839 } else {
840 /*
841 * By now, all the AC queues are empty. The AGG queues are
842 * empty too. We already got all the Tx responses for all the
843 * packets in the queues. The drain work can have been
844 * triggered. Flush it.
845 */
846 flush_work(&mvm->sta_drained_wk);
847 }
848 }
849
850 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
851 struct ieee80211_vif *vif)
852 {
853 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
854 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
855
856 iwl_mvm_prepare_mac_removal(mvm, vif);
857
858 mutex_lock(&mvm->mutex);
859
860 if (mvm->bf_allowed_vif == mvmvif) {
861 mvm->bf_allowed_vif = NULL;
862 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
863 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
864 }
865
866 iwl_mvm_vif_dbgfs_clean(mvm, vif);
867
868 /*
869 * For AP/GO interface, the tear down of the resources allocated to the
870 * interface is be handled as part of the stop_ap flow.
871 */
872 if (vif->type == NL80211_IFTYPE_AP ||
873 vif->type == NL80211_IFTYPE_ADHOC) {
874 #ifdef CONFIG_NL80211_TESTMODE
875 if (vif == mvm->noa_vif) {
876 mvm->noa_vif = NULL;
877 mvm->noa_duration = 0;
878 }
879 #endif
880 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
881 goto out_release;
882 }
883
884 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
885 mvm->p2p_device_vif = NULL;
886 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
887 iwl_mvm_binding_remove_vif(mvm, vif);
888 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
889 mvmvif->phy_ctxt = NULL;
890 }
891
892 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
893 mvm->vif_count--;
894
895 iwl_mvm_power_update_mac(mvm, vif);
896 iwl_mvm_mac_ctxt_remove(mvm, vif);
897
898 out_release:
899 iwl_mvm_mac_ctxt_release(mvm, vif);
900 mutex_unlock(&mvm->mutex);
901 }
902
903 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
904 {
905 return 0;
906 }
907
908 struct iwl_mvm_mc_iter_data {
909 struct iwl_mvm *mvm;
910 int port_id;
911 };
912
913 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
914 struct ieee80211_vif *vif)
915 {
916 struct iwl_mvm_mc_iter_data *data = _data;
917 struct iwl_mvm *mvm = data->mvm;
918 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
919 int ret, len;
920
921 /* if we don't have free ports, mcast frames will be dropped */
922 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
923 return;
924
925 if (vif->type != NL80211_IFTYPE_STATION ||
926 !vif->bss_conf.assoc)
927 return;
928
929 cmd->port_id = data->port_id++;
930 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
931 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
932
933 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
934 if (ret)
935 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
936 }
937
938 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
939 {
940 struct iwl_mvm_mc_iter_data iter_data = {
941 .mvm = mvm,
942 };
943
944 lockdep_assert_held(&mvm->mutex);
945
946 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
947 return;
948
949 ieee80211_iterate_active_interfaces(
950 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
951 iwl_mvm_mc_iface_iterator, &iter_data);
952 }
953
954 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
955 struct netdev_hw_addr_list *mc_list)
956 {
957 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
958 struct iwl_mcast_filter_cmd *cmd;
959 struct netdev_hw_addr *addr;
960 int addr_count = netdev_hw_addr_list_count(mc_list);
961 bool pass_all = false;
962 int len;
963
964 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
965 pass_all = true;
966 addr_count = 0;
967 }
968
969 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
970 cmd = kzalloc(len, GFP_ATOMIC);
971 if (!cmd)
972 return 0;
973
974 if (pass_all) {
975 cmd->pass_all = 1;
976 return (u64)(unsigned long)cmd;
977 }
978
979 netdev_hw_addr_list_for_each(addr, mc_list) {
980 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
981 cmd->count, addr->addr);
982 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
983 addr->addr, ETH_ALEN);
984 cmd->count++;
985 }
986
987 return (u64)(unsigned long)cmd;
988 }
989
990 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
991 unsigned int changed_flags,
992 unsigned int *total_flags,
993 u64 multicast)
994 {
995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
996 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
997
998 mutex_lock(&mvm->mutex);
999
1000 /* replace previous configuration */
1001 kfree(mvm->mcast_filter_cmd);
1002 mvm->mcast_filter_cmd = cmd;
1003
1004 if (!cmd)
1005 goto out;
1006
1007 iwl_mvm_recalc_multicast(mvm);
1008 out:
1009 mutex_unlock(&mvm->mutex);
1010 *total_flags = 0;
1011 }
1012
1013 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1014 struct iwl_bcast_iter_data {
1015 struct iwl_mvm *mvm;
1016 struct iwl_bcast_filter_cmd *cmd;
1017 u8 current_filter;
1018 };
1019
1020 static void
1021 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1022 const struct iwl_fw_bcast_filter *in_filter,
1023 struct iwl_fw_bcast_filter *out_filter)
1024 {
1025 struct iwl_fw_bcast_filter_attr *attr;
1026 int i;
1027
1028 memcpy(out_filter, in_filter, sizeof(*out_filter));
1029
1030 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1031 attr = &out_filter->attrs[i];
1032
1033 if (!attr->mask)
1034 break;
1035
1036 switch (attr->reserved1) {
1037 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1038 if (vif->bss_conf.arp_addr_cnt != 1) {
1039 attr->mask = 0;
1040 continue;
1041 }
1042
1043 attr->val = vif->bss_conf.arp_addr_list[0];
1044 break;
1045 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1046 attr->val = *(__be32 *)&vif->addr[2];
1047 break;
1048 default:
1049 break;
1050 }
1051 attr->reserved1 = 0;
1052 out_filter->num_attrs++;
1053 }
1054 }
1055
1056 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1057 struct ieee80211_vif *vif)
1058 {
1059 struct iwl_bcast_iter_data *data = _data;
1060 struct iwl_mvm *mvm = data->mvm;
1061 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1062 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1063 struct iwl_fw_bcast_mac *bcast_mac;
1064 int i;
1065
1066 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1067 return;
1068
1069 bcast_mac = &cmd->macs[mvmvif->id];
1070
1071 /* enable filtering only for associated stations */
1072 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1073 return;
1074
1075 bcast_mac->default_discard = 1;
1076
1077 /* copy all configured filters */
1078 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1079 /*
1080 * Make sure we don't exceed our filters limit.
1081 * if there is still a valid filter to be configured,
1082 * be on the safe side and just allow bcast for this mac.
1083 */
1084 if (WARN_ON_ONCE(data->current_filter >=
1085 ARRAY_SIZE(cmd->filters))) {
1086 bcast_mac->default_discard = 0;
1087 bcast_mac->attached_filters = 0;
1088 break;
1089 }
1090
1091 iwl_mvm_set_bcast_filter(vif,
1092 &mvm->bcast_filters[i],
1093 &cmd->filters[data->current_filter]);
1094
1095 /* skip current filter if it contains no attributes */
1096 if (!cmd->filters[data->current_filter].num_attrs)
1097 continue;
1098
1099 /* attach the filter to current mac */
1100 bcast_mac->attached_filters |=
1101 cpu_to_le16(BIT(data->current_filter));
1102
1103 data->current_filter++;
1104 }
1105 }
1106
1107 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1108 struct iwl_bcast_filter_cmd *cmd)
1109 {
1110 struct iwl_bcast_iter_data iter_data = {
1111 .mvm = mvm,
1112 .cmd = cmd,
1113 };
1114
1115 memset(cmd, 0, sizeof(*cmd));
1116 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1117 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1118
1119 #ifdef CONFIG_IWLWIFI_DEBUGFS
1120 /* use debugfs filters/macs if override is configured */
1121 if (mvm->dbgfs_bcast_filtering.override) {
1122 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1123 sizeof(cmd->filters));
1124 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1125 sizeof(cmd->macs));
1126 return true;
1127 }
1128 #endif
1129
1130 /* if no filters are configured, do nothing */
1131 if (!mvm->bcast_filters)
1132 return false;
1133
1134 /* configure and attach these filters for each associated sta vif */
1135 ieee80211_iterate_active_interfaces(
1136 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1137 iwl_mvm_bcast_filter_iterator, &iter_data);
1138
1139 return true;
1140 }
1141 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1142 struct ieee80211_vif *vif)
1143 {
1144 struct iwl_bcast_filter_cmd cmd;
1145
1146 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1147 return 0;
1148
1149 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1150 return 0;
1151
1152 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1153 sizeof(cmd), &cmd);
1154 }
1155 #else
1156 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1157 struct ieee80211_vif *vif)
1158 {
1159 return 0;
1160 }
1161 #endif
1162
1163 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1164 struct ieee80211_vif *vif,
1165 struct ieee80211_bss_conf *bss_conf,
1166 u32 changes)
1167 {
1168 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1169 int ret;
1170
1171 /*
1172 * Re-calculate the tsf id, as the master-slave relations depend on the
1173 * beacon interval, which was not known when the station interface was
1174 * added.
1175 */
1176 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1177 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1178
1179 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1180 if (ret)
1181 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1182
1183 if (changes & BSS_CHANGED_ASSOC) {
1184 if (bss_conf->assoc) {
1185 /* add quota for this interface */
1186 ret = iwl_mvm_update_quotas(mvm, vif);
1187 if (ret) {
1188 IWL_ERR(mvm, "failed to update quotas\n");
1189 return;
1190 }
1191
1192 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1193 &mvm->status)) {
1194 /*
1195 * If we're restarting then the firmware will
1196 * obviously have lost synchronisation with
1197 * the AP. It will attempt to synchronise by
1198 * itself, but we can make it more reliable by
1199 * scheduling a session protection time event.
1200 *
1201 * The firmware needs to receive a beacon to
1202 * catch up with synchronisation, use 110% of
1203 * the beacon interval.
1204 *
1205 * Set a large maximum delay to allow for more
1206 * than a single interface.
1207 */
1208 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1209 iwl_mvm_protect_session(mvm, vif, dur, dur,
1210 5 * dur);
1211 }
1212
1213 iwl_mvm_sf_update(mvm, vif, false);
1214 iwl_mvm_power_vif_assoc(mvm, vif);
1215 if (vif->p2p)
1216 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1217 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1218 /*
1219 * If update fails - SF might be running in associated
1220 * mode while disassociated - which is forbidden.
1221 */
1222 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1223 "Failed to update SF upon disassociation\n");
1224
1225 /* remove AP station now that the MAC is unassoc */
1226 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1227 if (ret)
1228 IWL_ERR(mvm, "failed to remove AP station\n");
1229
1230 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1231 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1232 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1233 /* remove quota for this interface */
1234 ret = iwl_mvm_update_quotas(mvm, NULL);
1235 if (ret)
1236 IWL_ERR(mvm, "failed to update quotas\n");
1237
1238 if (vif->p2p)
1239 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1240 }
1241
1242 iwl_mvm_recalc_multicast(mvm);
1243 iwl_mvm_configure_bcast_filter(mvm, vif);
1244
1245 /* reset rssi values */
1246 mvmvif->bf_data.ave_beacon_signal = 0;
1247
1248 iwl_mvm_bt_coex_vif_change(mvm);
1249 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1250 IEEE80211_SMPS_AUTOMATIC);
1251 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1252 /*
1253 * We received a beacon _after_ association so
1254 * remove the session protection.
1255 */
1256 iwl_mvm_remove_time_event(mvm, mvmvif,
1257 &mvmvif->time_event_data);
1258 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1259 BSS_CHANGED_QOS)) {
1260 ret = iwl_mvm_power_update_mac(mvm, vif);
1261 if (ret)
1262 IWL_ERR(mvm, "failed to update power mode\n");
1263 }
1264 if (changes & BSS_CHANGED_TXPOWER) {
1265 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1266 bss_conf->txpower);
1267 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1268 }
1269
1270 if (changes & BSS_CHANGED_CQM) {
1271 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1272 /* reset cqm events tracking */
1273 mvmvif->bf_data.last_cqm_event = 0;
1274 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1275 if (ret)
1276 IWL_ERR(mvm, "failed to update CQM thresholds\n");
1277 }
1278
1279 if (changes & BSS_CHANGED_ARP_FILTER) {
1280 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1281 iwl_mvm_configure_bcast_filter(mvm, vif);
1282 }
1283 }
1284
1285 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1286 struct ieee80211_vif *vif)
1287 {
1288 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1289 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1290 int ret;
1291
1292 mutex_lock(&mvm->mutex);
1293
1294 /* Send the beacon template */
1295 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1296 if (ret)
1297 goto out_unlock;
1298
1299 /*
1300 * Re-calculate the tsf id, as the master-slave relations depend on the
1301 * beacon interval, which was not known when the AP interface was added.
1302 */
1303 if (vif->type == NL80211_IFTYPE_AP)
1304 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1305
1306 /* Add the mac context */
1307 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1308 if (ret)
1309 goto out_unlock;
1310
1311 /* Perform the binding */
1312 ret = iwl_mvm_binding_add_vif(mvm, vif);
1313 if (ret)
1314 goto out_remove;
1315
1316 /* Send the bcast station. At this stage the TBTT and DTIM time events
1317 * are added and applied to the scheduler */
1318 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1319 if (ret)
1320 goto out_unbind;
1321
1322 /* must be set before quota calculations */
1323 mvmvif->ap_ibss_active = true;
1324
1325 /* power updated needs to be done before quotas */
1326 iwl_mvm_power_update_mac(mvm, vif);
1327
1328 ret = iwl_mvm_update_quotas(mvm, vif);
1329 if (ret)
1330 goto out_quota_failed;
1331
1332 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1333 if (vif->p2p && mvm->p2p_device_vif)
1334 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1335
1336 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1337
1338 iwl_mvm_bt_coex_vif_change(mvm);
1339
1340 mutex_unlock(&mvm->mutex);
1341 return 0;
1342
1343 out_quota_failed:
1344 iwl_mvm_power_update_mac(mvm, vif);
1345 mvmvif->ap_ibss_active = false;
1346 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1347 out_unbind:
1348 iwl_mvm_binding_remove_vif(mvm, vif);
1349 out_remove:
1350 iwl_mvm_mac_ctxt_remove(mvm, vif);
1351 out_unlock:
1352 mutex_unlock(&mvm->mutex);
1353 return ret;
1354 }
1355
1356 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1357 struct ieee80211_vif *vif)
1358 {
1359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1360 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1361
1362 iwl_mvm_prepare_mac_removal(mvm, vif);
1363
1364 mutex_lock(&mvm->mutex);
1365
1366 mvmvif->ap_ibss_active = false;
1367
1368 iwl_mvm_bt_coex_vif_change(mvm);
1369
1370 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1371
1372 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1373 if (vif->p2p && mvm->p2p_device_vif)
1374 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1375
1376 iwl_mvm_update_quotas(mvm, NULL);
1377 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1378 iwl_mvm_binding_remove_vif(mvm, vif);
1379
1380 iwl_mvm_power_update_mac(mvm, vif);
1381
1382 iwl_mvm_mac_ctxt_remove(mvm, vif);
1383
1384 mutex_unlock(&mvm->mutex);
1385 }
1386
1387 static void
1388 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1389 struct ieee80211_vif *vif,
1390 struct ieee80211_bss_conf *bss_conf,
1391 u32 changes)
1392 {
1393 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1394
1395 /* Changes will be applied when the AP/IBSS is started */
1396 if (!mvmvif->ap_ibss_active)
1397 return;
1398
1399 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1400 BSS_CHANGED_BANDWIDTH) &&
1401 iwl_mvm_mac_ctxt_changed(mvm, vif))
1402 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1403
1404 /* Need to send a new beacon template to the FW */
1405 if (changes & BSS_CHANGED_BEACON &&
1406 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1407 IWL_WARN(mvm, "Failed updating beacon data\n");
1408 }
1409
1410 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1411 struct ieee80211_vif *vif,
1412 struct ieee80211_bss_conf *bss_conf,
1413 u32 changes)
1414 {
1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1416
1417 mutex_lock(&mvm->mutex);
1418
1419 switch (vif->type) {
1420 case NL80211_IFTYPE_STATION:
1421 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1422 break;
1423 case NL80211_IFTYPE_AP:
1424 case NL80211_IFTYPE_ADHOC:
1425 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1426 break;
1427 default:
1428 /* shouldn't happen */
1429 WARN_ON_ONCE(1);
1430 }
1431
1432 mutex_unlock(&mvm->mutex);
1433 }
1434
1435 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1436 struct ieee80211_vif *vif,
1437 struct cfg80211_scan_request *req)
1438 {
1439 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1440 struct iwl_notification_wait wait_scan_done;
1441 static const u8 scan_done_notif[] = { SCAN_OFFLOAD_COMPLETE, };
1442 int ret;
1443
1444 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1445 return -EINVAL;
1446
1447 mutex_lock(&mvm->mutex);
1448
1449 switch (mvm->scan_status) {
1450 case IWL_MVM_SCAN_SCHED:
1451 iwl_init_notification_wait(&mvm->notif_wait, &wait_scan_done,
1452 scan_done_notif,
1453 ARRAY_SIZE(scan_done_notif),
1454 NULL, NULL);
1455 iwl_mvm_sched_scan_stop(mvm);
1456 ret = iwl_wait_notification(&mvm->notif_wait,
1457 &wait_scan_done, HZ);
1458 if (ret) {
1459 ret = -EBUSY;
1460 goto out;
1461 }
1462 /* iwl_mvm_rx_scan_offload_complete_notif() will be called
1463 * soon but will not reset the scan status as it won't be
1464 * IWL_MVM_SCAN_SCHED any more since we queue the next scan
1465 * immediately (below)
1466 */
1467 break;
1468 case IWL_MVM_SCAN_NONE:
1469 break;
1470 default:
1471 ret = -EBUSY;
1472 goto out;
1473 }
1474
1475 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1476
1477 ret = iwl_mvm_scan_request(mvm, vif, req);
1478 if (ret)
1479 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1480 out:
1481 mutex_unlock(&mvm->mutex);
1482
1483 return ret;
1484 }
1485
1486 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1487 struct ieee80211_vif *vif)
1488 {
1489 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1490
1491 mutex_lock(&mvm->mutex);
1492
1493 iwl_mvm_cancel_scan(mvm);
1494
1495 mutex_unlock(&mvm->mutex);
1496 }
1497
1498 static void
1499 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1500 struct ieee80211_sta *sta, u16 tids,
1501 int num_frames,
1502 enum ieee80211_frame_release_type reason,
1503 bool more_data)
1504 {
1505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1506
1507 /* Called when we need to transmit (a) frame(s) from mac80211 */
1508
1509 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1510 tids, more_data, false);
1511 }
1512
1513 static void
1514 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1515 struct ieee80211_sta *sta, u16 tids,
1516 int num_frames,
1517 enum ieee80211_frame_release_type reason,
1518 bool more_data)
1519 {
1520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1521
1522 /* Called when we need to transmit (a) frame(s) from agg queue */
1523
1524 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1525 tids, more_data, true);
1526 }
1527
1528 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1529 struct ieee80211_vif *vif,
1530 enum sta_notify_cmd cmd,
1531 struct ieee80211_sta *sta)
1532 {
1533 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1534 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1535 int tid;
1536
1537 switch (cmd) {
1538 case STA_NOTIFY_SLEEP:
1539 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1540 ieee80211_sta_block_awake(hw, sta, true);
1541 spin_lock_bh(&mvmsta->lock);
1542 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1543 struct iwl_mvm_tid_data *tid_data;
1544
1545 tid_data = &mvmsta->tid_data[tid];
1546 if (tid_data->state != IWL_AGG_ON &&
1547 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1548 continue;
1549 if (iwl_mvm_tid_queued(tid_data) == 0)
1550 continue;
1551 ieee80211_sta_set_buffered(sta, tid, true);
1552 }
1553 spin_unlock_bh(&mvmsta->lock);
1554 /*
1555 * The fw updates the STA to be asleep. Tx packets on the Tx
1556 * queues to this station will not be transmitted. The fw will
1557 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1558 */
1559 break;
1560 case STA_NOTIFY_AWAKE:
1561 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1562 break;
1563 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1564 break;
1565 default:
1566 break;
1567 }
1568 }
1569
1570 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1571 struct ieee80211_vif *vif,
1572 struct ieee80211_sta *sta)
1573 {
1574 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1575 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1576
1577 /*
1578 * This is called before mac80211 does RCU synchronisation,
1579 * so here we already invalidate our internal RCU-protected
1580 * station pointer. The rest of the code will thus no longer
1581 * be able to find the station this way, and we don't rely
1582 * on further RCU synchronisation after the sta_state()
1583 * callback deleted the station.
1584 */
1585 mutex_lock(&mvm->mutex);
1586 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1587 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1588 ERR_PTR(-ENOENT));
1589 mutex_unlock(&mvm->mutex);
1590 }
1591
1592 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1593 struct ieee80211_vif *vif,
1594 struct ieee80211_sta *sta,
1595 enum ieee80211_sta_state old_state,
1596 enum ieee80211_sta_state new_state)
1597 {
1598 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1599 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1600 int ret;
1601
1602 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1603 sta->addr, old_state, new_state);
1604
1605 /* this would be a mac80211 bug ... but don't crash */
1606 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1607 return -EINVAL;
1608
1609 /* if a STA is being removed, reuse its ID */
1610 flush_work(&mvm->sta_drained_wk);
1611
1612 mutex_lock(&mvm->mutex);
1613 if (old_state == IEEE80211_STA_NOTEXIST &&
1614 new_state == IEEE80211_STA_NONE) {
1615 /*
1616 * Firmware bug - it'll crash if the beacon interval is less
1617 * than 16. We can't avoid connecting at all, so refuse the
1618 * station state change, this will cause mac80211 to abandon
1619 * attempts to connect to this AP, and eventually wpa_s will
1620 * blacklist the AP...
1621 */
1622 if (vif->type == NL80211_IFTYPE_STATION &&
1623 vif->bss_conf.beacon_int < 16) {
1624 IWL_ERR(mvm,
1625 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1626 sta->addr, vif->bss_conf.beacon_int);
1627 ret = -EINVAL;
1628 goto out_unlock;
1629 }
1630 ret = iwl_mvm_add_sta(mvm, vif, sta);
1631 } else if (old_state == IEEE80211_STA_NONE &&
1632 new_state == IEEE80211_STA_AUTH) {
1633 ret = 0;
1634 } else if (old_state == IEEE80211_STA_AUTH &&
1635 new_state == IEEE80211_STA_ASSOC) {
1636 ret = iwl_mvm_update_sta(mvm, vif, sta);
1637 if (ret == 0)
1638 iwl_mvm_rs_rate_init(mvm, sta,
1639 mvmvif->phy_ctxt->channel->band,
1640 true);
1641 } else if (old_state == IEEE80211_STA_ASSOC &&
1642 new_state == IEEE80211_STA_AUTHORIZED) {
1643 /* enable beacon filtering */
1644 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1645 ret = 0;
1646 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1647 new_state == IEEE80211_STA_ASSOC) {
1648 /* disable beacon filtering */
1649 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1650 ret = 0;
1651 } else if (old_state == IEEE80211_STA_ASSOC &&
1652 new_state == IEEE80211_STA_AUTH) {
1653 ret = 0;
1654 } else if (old_state == IEEE80211_STA_AUTH &&
1655 new_state == IEEE80211_STA_NONE) {
1656 ret = 0;
1657 } else if (old_state == IEEE80211_STA_NONE &&
1658 new_state == IEEE80211_STA_NOTEXIST) {
1659 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1660 } else {
1661 ret = -EIO;
1662 }
1663 out_unlock:
1664 mutex_unlock(&mvm->mutex);
1665
1666 return ret;
1667 }
1668
1669 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1670 {
1671 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1672
1673 mvm->rts_threshold = value;
1674
1675 return 0;
1676 }
1677
1678 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1679 struct ieee80211_vif *vif,
1680 struct ieee80211_sta *sta, u32 changed)
1681 {
1682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1683
1684 if (vif->type == NL80211_IFTYPE_STATION &&
1685 changed & IEEE80211_RC_NSS_CHANGED)
1686 iwl_mvm_sf_update(mvm, vif, false);
1687 }
1688
1689 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1690 struct ieee80211_vif *vif, u16 ac,
1691 const struct ieee80211_tx_queue_params *params)
1692 {
1693 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1694 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1695
1696 mvmvif->queue_params[ac] = *params;
1697
1698 /*
1699 * No need to update right away, we'll get BSS_CHANGED_QOS
1700 * The exception is P2P_DEVICE interface which needs immediate update.
1701 */
1702 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1703 int ret;
1704
1705 mutex_lock(&mvm->mutex);
1706 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1707 mutex_unlock(&mvm->mutex);
1708 return ret;
1709 }
1710 return 0;
1711 }
1712
1713 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1714 struct ieee80211_vif *vif)
1715 {
1716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1717 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1718 200 + vif->bss_conf.beacon_int);
1719 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1720 100 + vif->bss_conf.beacon_int);
1721
1722 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1723 return;
1724
1725 mutex_lock(&mvm->mutex);
1726 /* Try really hard to protect the session and hear a beacon */
1727 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1728 mutex_unlock(&mvm->mutex);
1729 }
1730
1731 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1732 struct ieee80211_vif *vif,
1733 struct cfg80211_sched_scan_request *req,
1734 struct ieee80211_sched_scan_ies *ies)
1735 {
1736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1737 int ret;
1738
1739 mutex_lock(&mvm->mutex);
1740
1741 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
1742 IWL_DEBUG_SCAN(mvm,
1743 "SCHED SCAN request during internal scan - abort\n");
1744 ret = -EBUSY;
1745 goto out;
1746 }
1747
1748 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1749
1750 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1751 if (ret)
1752 goto err;
1753
1754 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1755 if (ret)
1756 goto err;
1757
1758 ret = iwl_mvm_sched_scan_start(mvm, req);
1759 if (!ret)
1760 goto out;
1761 err:
1762 mvm->scan_status = IWL_MVM_SCAN_NONE;
1763 out:
1764 mutex_unlock(&mvm->mutex);
1765 return ret;
1766 }
1767
1768 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1769 struct ieee80211_vif *vif)
1770 {
1771 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1772
1773 mutex_lock(&mvm->mutex);
1774 iwl_mvm_sched_scan_stop(mvm);
1775 mutex_unlock(&mvm->mutex);
1776
1777 return 0;
1778 }
1779
1780 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1781 enum set_key_cmd cmd,
1782 struct ieee80211_vif *vif,
1783 struct ieee80211_sta *sta,
1784 struct ieee80211_key_conf *key)
1785 {
1786 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1787 int ret;
1788
1789 if (iwlwifi_mod_params.sw_crypto) {
1790 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1791 return -EOPNOTSUPP;
1792 }
1793
1794 switch (key->cipher) {
1795 case WLAN_CIPHER_SUITE_TKIP:
1796 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1797 /* fall-through */
1798 case WLAN_CIPHER_SUITE_CCMP:
1799 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1800 break;
1801 case WLAN_CIPHER_SUITE_AES_CMAC:
1802 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1803 break;
1804 case WLAN_CIPHER_SUITE_WEP40:
1805 case WLAN_CIPHER_SUITE_WEP104:
1806 /*
1807 * Support for TX only, at least for now, so accept
1808 * the key and do nothing else. Then mac80211 will
1809 * pass it for TX but we don't have to use it for RX.
1810 */
1811 return 0;
1812 default:
1813 /* currently FW supports only one optional cipher scheme */
1814 if (hw->n_cipher_schemes &&
1815 hw->cipher_schemes->cipher == key->cipher)
1816 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1817 else
1818 return -EOPNOTSUPP;
1819 }
1820
1821 mutex_lock(&mvm->mutex);
1822
1823 switch (cmd) {
1824 case SET_KEY:
1825 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1826 vif->type == NL80211_IFTYPE_AP) && !sta) {
1827 /*
1828 * GTK on AP interface is a TX-only key, return 0;
1829 * on IBSS they're per-station and because we're lazy
1830 * we don't support them for RX, so do the same.
1831 */
1832 ret = 0;
1833 key->hw_key_idx = STA_KEY_IDX_INVALID;
1834 break;
1835 }
1836
1837 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1838 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1839 if (ret) {
1840 IWL_WARN(mvm, "set key failed\n");
1841 /*
1842 * can't add key for RX, but we don't need it
1843 * in the device for TX so still return 0
1844 */
1845 key->hw_key_idx = STA_KEY_IDX_INVALID;
1846 ret = 0;
1847 }
1848
1849 break;
1850 case DISABLE_KEY:
1851 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1852 ret = 0;
1853 break;
1854 }
1855
1856 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1857 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1858 break;
1859 default:
1860 ret = -EINVAL;
1861 }
1862
1863 mutex_unlock(&mvm->mutex);
1864 return ret;
1865 }
1866
1867 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1868 struct ieee80211_vif *vif,
1869 struct ieee80211_key_conf *keyconf,
1870 struct ieee80211_sta *sta,
1871 u32 iv32, u16 *phase1key)
1872 {
1873 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1874
1875 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1876 return;
1877
1878 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1879 }
1880
1881
1882 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1883 struct ieee80211_vif *vif,
1884 struct ieee80211_channel *channel,
1885 int duration,
1886 enum ieee80211_roc_type type)
1887 {
1888 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1889 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1890 struct cfg80211_chan_def chandef;
1891 struct iwl_mvm_phy_ctxt *phy_ctxt;
1892 int ret, i;
1893
1894 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1895 duration, type);
1896
1897 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1898 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1899 return -EINVAL;
1900 }
1901
1902 mutex_lock(&mvm->mutex);
1903
1904 for (i = 0; i < NUM_PHY_CTX; i++) {
1905 phy_ctxt = &mvm->phy_ctxts[i];
1906 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
1907 continue;
1908
1909 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
1910 /*
1911 * Unbind the P2P_DEVICE from the current PHY context,
1912 * and if the PHY context is not used remove it.
1913 */
1914 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1915 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1916 goto out_unlock;
1917
1918 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1919
1920 /* Bind the P2P_DEVICE to the current PHY Context */
1921 mvmvif->phy_ctxt = phy_ctxt;
1922
1923 ret = iwl_mvm_binding_add_vif(mvm, vif);
1924 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1925 goto out_unlock;
1926
1927 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1928 goto schedule_time_event;
1929 }
1930 }
1931
1932 /* Need to update the PHY context only if the ROC channel changed */
1933 if (channel == mvmvif->phy_ctxt->channel)
1934 goto schedule_time_event;
1935
1936 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
1937
1938 /*
1939 * Change the PHY context configuration as it is currently referenced
1940 * only by the P2P Device MAC
1941 */
1942 if (mvmvif->phy_ctxt->ref == 1) {
1943 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
1944 &chandef, 1, 1);
1945 if (ret)
1946 goto out_unlock;
1947 } else {
1948 /*
1949 * The PHY context is shared with other MACs. Need to remove the
1950 * P2P Device from the binding, allocate an new PHY context and
1951 * create a new binding
1952 */
1953 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1954 if (!phy_ctxt) {
1955 ret = -ENOSPC;
1956 goto out_unlock;
1957 }
1958
1959 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
1960 1, 1);
1961 if (ret) {
1962 IWL_ERR(mvm, "Failed to change PHY context\n");
1963 goto out_unlock;
1964 }
1965
1966 /* Unbind the P2P_DEVICE from the current PHY context */
1967 ret = iwl_mvm_binding_remove_vif(mvm, vif);
1968 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
1969 goto out_unlock;
1970
1971 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1972
1973 /* Bind the P2P_DEVICE to the new allocated PHY context */
1974 mvmvif->phy_ctxt = phy_ctxt;
1975
1976 ret = iwl_mvm_binding_add_vif(mvm, vif);
1977 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
1978 goto out_unlock;
1979
1980 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1981 }
1982
1983 schedule_time_event:
1984 /* Schedule the time events */
1985 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
1986
1987 out_unlock:
1988 mutex_unlock(&mvm->mutex);
1989 IWL_DEBUG_MAC80211(mvm, "leave\n");
1990 return ret;
1991 }
1992
1993 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
1994 {
1995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1996
1997 IWL_DEBUG_MAC80211(mvm, "enter\n");
1998
1999 mutex_lock(&mvm->mutex);
2000 iwl_mvm_stop_p2p_roc(mvm);
2001 mutex_unlock(&mvm->mutex);
2002
2003 IWL_DEBUG_MAC80211(mvm, "leave\n");
2004 return 0;
2005 }
2006
2007 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2008 struct ieee80211_chanctx_conf *ctx)
2009 {
2010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2011 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2012 struct iwl_mvm_phy_ctxt *phy_ctxt;
2013 int ret;
2014
2015 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2016
2017 mutex_lock(&mvm->mutex);
2018 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2019 if (!phy_ctxt) {
2020 ret = -ENOSPC;
2021 goto out;
2022 }
2023
2024 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2025 ctx->rx_chains_static,
2026 ctx->rx_chains_dynamic);
2027 if (ret) {
2028 IWL_ERR(mvm, "Failed to add PHY context\n");
2029 goto out;
2030 }
2031
2032 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2033 *phy_ctxt_id = phy_ctxt->id;
2034 out:
2035 mutex_unlock(&mvm->mutex);
2036 return ret;
2037 }
2038
2039 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2040 struct ieee80211_chanctx_conf *ctx)
2041 {
2042 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2043 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2044 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2045
2046 mutex_lock(&mvm->mutex);
2047 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2048 mutex_unlock(&mvm->mutex);
2049 }
2050
2051 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2052 struct ieee80211_chanctx_conf *ctx,
2053 u32 changed)
2054 {
2055 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2056 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2057 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2058
2059 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2060 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2061 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2062 IEEE80211_CHANCTX_CHANGE_RADAR |
2063 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2064 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2065 phy_ctxt->ref, changed))
2066 return;
2067
2068 mutex_lock(&mvm->mutex);
2069 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2070 ctx->rx_chains_static,
2071 ctx->rx_chains_dynamic);
2072 iwl_mvm_bt_coex_vif_change(mvm);
2073 mutex_unlock(&mvm->mutex);
2074 }
2075
2076 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2077 struct ieee80211_vif *vif,
2078 struct ieee80211_chanctx_conf *ctx)
2079 {
2080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2081 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2082 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2083 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2084 int ret;
2085
2086 mutex_lock(&mvm->mutex);
2087
2088 mvmvif->phy_ctxt = phy_ctxt;
2089
2090 switch (vif->type) {
2091 case NL80211_IFTYPE_AP:
2092 case NL80211_IFTYPE_ADHOC:
2093 /*
2094 * The AP binding flow is handled as part of the start_ap flow
2095 * (in bss_info_changed), similarly for IBSS.
2096 */
2097 ret = 0;
2098 goto out_unlock;
2099 case NL80211_IFTYPE_STATION:
2100 case NL80211_IFTYPE_MONITOR:
2101 break;
2102 default:
2103 ret = -EINVAL;
2104 goto out_unlock;
2105 }
2106
2107 ret = iwl_mvm_binding_add_vif(mvm, vif);
2108 if (ret)
2109 goto out_unlock;
2110
2111 /*
2112 * Power state must be updated before quotas,
2113 * otherwise fw will complain.
2114 */
2115 iwl_mvm_power_update_mac(mvm, vif);
2116
2117 /* Setting the quota at this stage is only required for monitor
2118 * interfaces. For the other types, the bss_info changed flow
2119 * will handle quota settings.
2120 */
2121 if (vif->type == NL80211_IFTYPE_MONITOR) {
2122 mvmvif->monitor_active = true;
2123 ret = iwl_mvm_update_quotas(mvm, vif);
2124 if (ret)
2125 goto out_remove_binding;
2126 }
2127
2128 goto out_unlock;
2129
2130 out_remove_binding:
2131 iwl_mvm_binding_remove_vif(mvm, vif);
2132 iwl_mvm_power_update_mac(mvm, vif);
2133 out_unlock:
2134 mutex_unlock(&mvm->mutex);
2135 if (ret)
2136 mvmvif->phy_ctxt = NULL;
2137 return ret;
2138 }
2139
2140 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2141 struct ieee80211_vif *vif,
2142 struct ieee80211_chanctx_conf *ctx)
2143 {
2144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2145 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2146
2147 mutex_lock(&mvm->mutex);
2148
2149 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2150
2151 switch (vif->type) {
2152 case NL80211_IFTYPE_AP:
2153 case NL80211_IFTYPE_ADHOC:
2154 goto out_unlock;
2155 case NL80211_IFTYPE_MONITOR:
2156 mvmvif->monitor_active = false;
2157 iwl_mvm_update_quotas(mvm, NULL);
2158 break;
2159 default:
2160 break;
2161 }
2162
2163 iwl_mvm_binding_remove_vif(mvm, vif);
2164 iwl_mvm_power_update_mac(mvm, vif);
2165
2166 out_unlock:
2167 mvmvif->phy_ctxt = NULL;
2168 mutex_unlock(&mvm->mutex);
2169 }
2170
2171 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2172 struct ieee80211_sta *sta,
2173 bool set)
2174 {
2175 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2176 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2177
2178 if (!mvm_sta || !mvm_sta->vif) {
2179 IWL_ERR(mvm, "Station is not associated to a vif\n");
2180 return -EINVAL;
2181 }
2182
2183 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2184 }
2185
2186 #ifdef CONFIG_NL80211_TESTMODE
2187 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2188 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2189 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2190 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2191 };
2192
2193 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2194 struct ieee80211_vif *vif,
2195 void *data, int len)
2196 {
2197 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2198 int err;
2199 u32 noa_duration;
2200
2201 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2202 if (err)
2203 return err;
2204
2205 if (!tb[IWL_MVM_TM_ATTR_CMD])
2206 return -EINVAL;
2207
2208 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2209 case IWL_MVM_TM_CMD_SET_NOA:
2210 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2211 !vif->bss_conf.enable_beacon ||
2212 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2213 return -EINVAL;
2214
2215 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2216 if (noa_duration >= vif->bss_conf.beacon_int)
2217 return -EINVAL;
2218
2219 mvm->noa_duration = noa_duration;
2220 mvm->noa_vif = vif;
2221
2222 return iwl_mvm_update_quotas(mvm, NULL);
2223 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2224 /* must be associated client vif - ignore authorized */
2225 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2226 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2227 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2228 return -EINVAL;
2229
2230 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2231 return iwl_mvm_enable_beacon_filter(mvm, vif,
2232 CMD_SYNC);
2233 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2234 }
2235
2236 return -EOPNOTSUPP;
2237 }
2238
2239 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2240 struct ieee80211_vif *vif,
2241 void *data, int len)
2242 {
2243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2244 int err;
2245
2246 mutex_lock(&mvm->mutex);
2247 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2248 mutex_unlock(&mvm->mutex);
2249
2250 return err;
2251 }
2252 #endif
2253
2254 const struct ieee80211_ops iwl_mvm_hw_ops = {
2255 .tx = iwl_mvm_mac_tx,
2256 .ampdu_action = iwl_mvm_mac_ampdu_action,
2257 .start = iwl_mvm_mac_start,
2258 .restart_complete = iwl_mvm_mac_restart_complete,
2259 .stop = iwl_mvm_mac_stop,
2260 .add_interface = iwl_mvm_mac_add_interface,
2261 .remove_interface = iwl_mvm_mac_remove_interface,
2262 .config = iwl_mvm_mac_config,
2263 .prepare_multicast = iwl_mvm_prepare_multicast,
2264 .configure_filter = iwl_mvm_configure_filter,
2265 .bss_info_changed = iwl_mvm_bss_info_changed,
2266 .hw_scan = iwl_mvm_mac_hw_scan,
2267 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2268 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2269 .sta_state = iwl_mvm_mac_sta_state,
2270 .sta_notify = iwl_mvm_mac_sta_notify,
2271 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2272 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2273 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2274 .sta_rc_update = iwl_mvm_sta_rc_update,
2275 .conf_tx = iwl_mvm_mac_conf_tx,
2276 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2277 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2278 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2279 .set_key = iwl_mvm_mac_set_key,
2280 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2281 .remain_on_channel = iwl_mvm_roc,
2282 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2283 .add_chanctx = iwl_mvm_add_chanctx,
2284 .remove_chanctx = iwl_mvm_remove_chanctx,
2285 .change_chanctx = iwl_mvm_change_chanctx,
2286 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2287 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2288
2289 .start_ap = iwl_mvm_start_ap_ibss,
2290 .stop_ap = iwl_mvm_stop_ap_ibss,
2291 .join_ibss = iwl_mvm_start_ap_ibss,
2292 .leave_ibss = iwl_mvm_stop_ap_ibss,
2293
2294 .set_tim = iwl_mvm_set_tim,
2295
2296 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2297
2298 #ifdef CONFIG_PM_SLEEP
2299 /* look at d3.c */
2300 .suspend = iwl_mvm_suspend,
2301 .resume = iwl_mvm_resume,
2302 .set_wakeup = iwl_mvm_set_wakeup,
2303 .set_rekey_data = iwl_mvm_set_rekey_data,
2304 #if IS_ENABLED(CONFIG_IPV6)
2305 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2306 #endif
2307 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2308 #endif
2309 };
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