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iwlwifi: mvm: set TWT responder capability bit in 11AX SoftAP mode
[thirdparty/linux.git] / drivers / net / wireless / intel / 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 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
63dd5d02 11 * Copyright(c) 2018 Intel Corporation
8ca151b5
JB
12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
8ca151b5 22 * The full GNU General Public License is included in this distribution
410dc5aa 23 * in the file called COPYING.
8ca151b5
JB
24 *
25 * Contact Information:
cb2f8277 26 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
51368bf7 31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
514c3069 34 * Copyright(c) 2018 Intel Corporation
8ca151b5
JB
35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 *
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
46 * distribution.
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *
63 *****************************************************************************/
64#include <linux/kernel.h>
65#include <linux/slab.h>
66#include <linux/skbuff.h>
67#include <linux/netdevice.h>
68#include <linux/etherdevice.h>
f0c2646a 69#include <linux/ip.h>
2ee8f021 70#include <linux/if_arp.h>
2f89a5d7 71#include <linux/time.h>
8ca151b5 72#include <net/mac80211.h>
7b1dd048 73#include <net/ieee80211_radiotap.h>
f0c2646a 74#include <net/tcp.h>
8ca151b5
JB
75
76#include "iwl-op-mode.h"
77#include "iwl-io.h"
78#include "mvm.h"
79#include "sta.h"
80#include "time-event.h"
81#include "iwl-eeprom-parse.h"
8ca151b5 82#include "iwl-phy-db.h"
507cadf2 83#include "testmode.h"
d962f9b1 84#include "fw/error-dump.h"
655e6d6d 85#include "iwl-prph.h"
88931cc9 86#include "iwl-nvm-parse.h"
8ca151b5
JB
87
88static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
89 {
90 .max = 1,
8eb38710 91 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 92 },
3c15a0fb
JB
93 {
94 .max = 1,
8eb38710
IP
95 .types = BIT(NL80211_IFTYPE_AP) |
96 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB
97 BIT(NL80211_IFTYPE_P2P_GO),
98 },
99 {
100 .max = 1,
101 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
102 },
8ca151b5
JB
103};
104
105static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
106 {
2624a5ca 107 .num_different_channels = 2,
8ca151b5
JB
108 .max_interfaces = 3,
109 .limits = iwl_mvm_limits,
110 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
111 },
112};
113
77736923 114#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP
115/*
116 * Use the reserved field to indicate magic values.
117 * these values will only be used internally by the driver,
118 * and won't make it to the fw (reserved will be 0).
119 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
120 * be the vif's ip address. in case there is not a single
121 * ip address (0, or more than 1), this attribute will
122 * be skipped.
123 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
124 * the LSB bytes of the vif's mac address
125 */
126enum {
127 BC_FILTER_MAGIC_NONE = 0,
128 BC_FILTER_MAGIC_IP,
129 BC_FILTER_MAGIC_MAC,
130};
131
77736923
EP
132static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
133 {
134 /* arp */
135 .discard = 0,
136 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
137 .attrs = {
138 {
139 /* frame type - arp, hw type - ethernet */
140 .offset_type =
141 BCAST_FILTER_OFFSET_PAYLOAD_START,
142 .offset = sizeof(rfc1042_header),
143 .val = cpu_to_be32(0x08060001),
144 .mask = cpu_to_be32(0xffffffff),
145 },
2ee8f021
EP
146 {
147 /* arp dest ip */
148 .offset_type =
149 BCAST_FILTER_OFFSET_PAYLOAD_START,
150 .offset = sizeof(rfc1042_header) + 2 +
151 sizeof(struct arphdr) +
152 ETH_ALEN + sizeof(__be32) +
153 ETH_ALEN,
154 .mask = cpu_to_be32(0xffffffff),
155 /* mark it as special field */
156 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
157 },
158 },
159 },
160 {
161 /* dhcp offer bcast */
162 .discard = 0,
163 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
164 .attrs = {
165 {
166 /* udp dest port - 68 (bootp client)*/
167 .offset_type = BCAST_FILTER_OFFSET_IP_END,
168 .offset = offsetof(struct udphdr, dest),
169 .val = cpu_to_be32(0x00440000),
170 .mask = cpu_to_be32(0xffff0000),
171 },
172 {
173 /* dhcp - lsb bytes of client hw address */
174 .offset_type = BCAST_FILTER_OFFSET_IP_END,
175 .offset = 38,
176 .mask = cpu_to_be32(0xffffffff),
177 /* mark it as special field */
178 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
179 },
77736923
EP
180 },
181 },
182 /* last filter must be empty */
183 {},
184};
185#endif
186
7498cf4c
EP
187void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
188{
7bb426ea 189 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP
190 return;
191
192 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP
193 spin_lock_bh(&mvm->refs_lock);
194 mvm->refs[ref_type]++;
195 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP
196 iwl_trans_ref(mvm->trans);
197}
198
199void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
200{
7bb426ea 201 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP
202 return;
203
204 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9 205 spin_lock_bh(&mvm->refs_lock);
16c45822
SS
206 if (WARN_ON(!mvm->refs[ref_type])) {
207 spin_unlock_bh(&mvm->refs_lock);
208 return;
209 }
210 mvm->refs[ref_type]--;
576eeee9 211 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP
212 iwl_trans_unref(mvm->trans);
213}
214
576eeee9
EP
215static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
216 enum iwl_mvm_ref_type except_ref)
7498cf4c 217{
576eeee9 218 int i, j;
7498cf4c 219
7bb426ea 220 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP
221 return;
222
576eeee9
EP
223 spin_lock_bh(&mvm->refs_lock);
224 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
225 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP
226 continue;
227
576eeee9
EP
228 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
229 i, mvm->refs[i]);
230 for (j = 0; j < mvm->refs[i]; j++)
231 iwl_trans_unref(mvm->trans);
232 mvm->refs[i] = 0;
7498cf4c 233 }
576eeee9 234 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP
235}
236
f4cf8680
EP
237bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
238{
239 int i;
240 bool taken = false;
241
242 if (!iwl_mvm_is_d0i3_supported(mvm))
243 return true;
244
245 spin_lock_bh(&mvm->refs_lock);
246 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
247 if (mvm->refs[i]) {
248 taken = true;
249 break;
250 }
251 }
252 spin_unlock_bh(&mvm->refs_lock);
253
254 return taken;
255}
256
576eeee9 257int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG
258{
259 iwl_mvm_ref(mvm, ref_type);
260
261 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
262 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
263 HZ)) {
264 WARN_ON_ONCE(1);
265 iwl_mvm_unref(mvm, ref_type);
266 return -EIO;
267 }
268
269 return 0;
270}
271
fe0f2de3
IP
272static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
273{
274 int i;
275
276 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
277 for (i = 0; i < NUM_PHY_CTX; i++) {
278 mvm->phy_ctxts[i].id = i;
279 mvm->phy_ctxts[i].ref = 0;
280 }
281}
282
88931cc9 283struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 284 const char *alpha2,
47c8b154
JD
285 enum iwl_mcc_source src_id,
286 bool *changed)
88931cc9
AN
287{
288 struct ieee80211_regdomain *regd = NULL;
289 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
290 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
291 struct iwl_mcc_update_resp *resp;
292
293 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
294
8ba2d7a1 295 lockdep_assert_held(&mvm->mutex);
88931cc9 296
8ba2d7a1 297 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN
298 if (IS_ERR_OR_NULL(resp)) {
299 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 300 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 301 goto out;
88931cc9
AN
302 }
303
82715ac7
EG
304 if (changed) {
305 u32 status = le32_to_cpu(resp->status);
306
307 *changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
308 status == MCC_RESP_ILLEGAL);
309 }
47c8b154 310
162ee3c9 311 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN
312 __le32_to_cpu(resp->n_channels),
313 resp->channels,
77e30e10
HD
314 __le16_to_cpu(resp->mcc),
315 __le16_to_cpu(resp->geo_info));
8ba2d7a1
EH
316 /* Store the return source id */
317 src_id = resp->source_id;
88931cc9
AN
318 kfree(resp);
319 if (IS_ERR_OR_NULL(regd)) {
320 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 321 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 322 goto out;
88931cc9
AN
323 }
324
8ba2d7a1
EH
325 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
326 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 327 mvm->lar_regdom_set = true;
8ba2d7a1 328 mvm->mcc_src = src_id;
88931cc9 329
8ba2d7a1 330out:
88931cc9
AN
331 return regd;
332}
333
47c8b154
JD
334void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
335{
336 bool changed;
337 struct ieee80211_regdomain *regd;
338
339 if (!iwl_mvm_is_lar_supported(mvm))
340 return;
341
342 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
343 if (!IS_ERR_OR_NULL(regd)) {
344 /* only update the regulatory core if changed */
345 if (changed)
346 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
347
348 kfree(regd);
349 }
350}
351
352struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
353 bool *changed)
8ba2d7a1
EH
354{
355 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
356 iwl_mvm_is_wifi_mcc_supported(mvm) ?
357 MCC_SOURCE_GET_CURRENT :
47c8b154 358 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH
359}
360
361int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
362{
363 enum iwl_mcc_source used_src;
364 struct ieee80211_regdomain *regd;
b6e160ab
AN
365 int ret;
366 bool changed;
8ba2d7a1
EH
367 const struct ieee80211_regdomain *r =
368 rtnl_dereference(mvm->hw->wiphy->regd);
369
370 if (!r)
b6e160ab 371 return -ENOENT;
8ba2d7a1
EH
372
373 /* save the last source in case we overwrite it below */
374 used_src = mvm->mcc_src;
375 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
376 /* Notify the firmware we support wifi location updates */
47c8b154 377 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH
378 if (!IS_ERR_OR_NULL(regd))
379 kfree(regd);
380 }
381
382 /* Now set our last stored MCC and source */
b6e160ab
AN
383 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
384 &changed);
8ba2d7a1
EH
385 if (IS_ERR_OR_NULL(regd))
386 return -EIO;
387
b6e160ab
AN
388 /* update cfg80211 if the regdomain was changed */
389 if (changed)
390 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
391 else
392 ret = 0;
8ba2d7a1 393
b6e160ab
AN
394 kfree(regd);
395 return ret;
8ba2d7a1
EH
396}
397
8ca151b5
JB
398int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
399{
400 struct ieee80211_hw *hw = mvm->hw;
831e85f3 401 int num_mac, ret, i;
5f4c02e2
JB
402 static const u32 mvm_ciphers[] = {
403 WLAN_CIPHER_SUITE_WEP40,
404 WLAN_CIPHER_SUITE_WEP104,
405 WLAN_CIPHER_SUITE_TKIP,
406 WLAN_CIPHER_SUITE_CCMP,
407 };
8ca151b5
JB
408
409 /* Tell mac80211 our characteristics */
30686bf7
JB
410 ieee80211_hw_set(hw, SIGNAL_DBM);
411 ieee80211_hw_set(hw, SPECTRUM_MGMT);
412 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
413 ieee80211_hw_set(hw, QUEUE_CONTROL);
414 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
415 ieee80211_hw_set(hw, SUPPORTS_PS);
416 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
417 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
418 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
419 ieee80211_hw_set(hw, CONNECTION_MONITOR);
420 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
421 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
422 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 423 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 424 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
d270e7b8 425 ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
520229e4 426 ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
ecaf71de 427
4243edb4 428 if (iwl_mvm_has_tlc_offload(mvm)) {
ecaf71de
GG
429 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
430 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
431 }
432
b915c101
SS
433 if (iwl_mvm_has_new_rx_api(mvm))
434 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
960f864b
JB
435
436 if (fw_has_capa(&mvm->fw->ucode_capa,
437 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
65e25482 438 ieee80211_hw_set(hw, AP_LINK_PS);
960f864b
JB
439 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
440 /*
441 * we absolutely need this for the new TX API since that comes
442 * with many more queues than the current code can deal with
443 * for station powersave
444 */
445 return -EINVAL;
446 }
8ca151b5 447
80938abc
JB
448 if (mvm->trans->num_rx_queues > 1)
449 ieee80211_hw_set(hw, USES_RSS);
450
2d7cf549
JB
451 if (mvm->trans->max_skb_frags)
452 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
453
c8f54701 454 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 455 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG
456 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
457 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES
458 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
459 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB
460
461 hw->radiotap_timestamp.units_pos =
462 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
463 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
464 /* this is the case for CCK frames, it's better (only 8) for OFDM */
465 hw->radiotap_timestamp.accuracy = 22;
466
4243edb4 467 if (!iwl_mvm_has_tlc_offload(mvm))
9f66a397
GG
468 hw->rate_control_algorithm = RS_NAME;
469
848955cc
JB
470 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
471 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 472
8e160ab8 473 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB
474 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
475 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
476 hw->wiphy->cipher_suites = mvm->ciphers;
477
2a53d166
AB
478 if (iwl_mvm_has_new_rx_api(mvm)) {
479 mvm->ciphers[hw->wiphy->n_cipher_suites] =
480 WLAN_CIPHER_SUITE_GCMP;
481 hw->wiphy->n_cipher_suites++;
482 mvm->ciphers[hw->wiphy->n_cipher_suites] =
483 WLAN_CIPHER_SUITE_GCMP_256;
484 hw->wiphy->n_cipher_suites++;
485 }
486
4b87e5af
LC
487 /* Enable 11w if software crypto is not enabled (as the
488 * firmware will interpret some mgmt packets, so enabling it
489 * with software crypto isn't safe).
8ca151b5 490 */
3b37f4c9 491 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 492 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB
493 mvm->ciphers[hw->wiphy->n_cipher_suites] =
494 WLAN_CIPHER_SUITE_AES_CMAC;
495 hw->wiphy->n_cipher_suites++;
8e160ab8
AB
496 if (iwl_mvm_has_new_rx_api(mvm)) {
497 mvm->ciphers[hw->wiphy->n_cipher_suites] =
498 WLAN_CIPHER_SUITE_BIP_GMAC_128;
499 hw->wiphy->n_cipher_suites++;
500 mvm->ciphers[hw->wiphy->n_cipher_suites] =
501 WLAN_CIPHER_SUITE_BIP_GMAC_256;
502 hw->wiphy->n_cipher_suites++;
503 }
5f4c02e2
JB
504 }
505
506 /* currently FW API supports only one optional cipher scheme */
507 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB
508 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
509 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
510
5f4c02e2 511 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB
512
513 cs->cipher = le32_to_cpu(fwcs->cipher);
514 cs->iftype = BIT(NL80211_IFTYPE_STATION);
515 cs->hdr_len = fwcs->hdr_len;
516 cs->pn_len = fwcs->pn_len;
517 cs->pn_off = fwcs->pn_off;
518 cs->key_idx_off = fwcs->key_idx_off;
519 cs->key_idx_mask = fwcs->key_idx_mask;
520 cs->key_idx_shift = fwcs->key_idx_shift;
521 cs->mic_len = fwcs->mic_len;
522
523 mvm->hw->cipher_schemes = mvm->cs;
524 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB
525 hw->wiphy->n_cipher_suites++;
526 }
8ca151b5 527
30686bf7 528 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC
529 hw->wiphy->features |=
530 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB
531 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
532 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 533
8ca151b5
JB
534 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
535 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 536 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB
537
538 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB
539 BIT(NL80211_IFTYPE_P2P_CLIENT) |
540 BIT(NL80211_IFTYPE_AP) |
541 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG
542 BIT(NL80211_IFTYPE_P2P_DEVICE) |
543 BIT(NL80211_IFTYPE_ADHOC);
5023d966 544
a2f73b6c 545 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH
546 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
547 if (iwl_mvm_is_lar_supported(mvm))
548 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
549 else
550 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
551 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 552
4b87e5af 553 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 554 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 555
8ca151b5
JB
556 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
557 hw->wiphy->n_iface_combinations =
558 ARRAY_SIZE(iwl_mvm_iface_combinations);
559
c451e6d4 560 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB
561 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
562
563 /* Extract MAC address */
564 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
565 hw->wiphy->addresses = mvm->addresses;
566 hw->wiphy->n_addresses = 1;
831e85f3
IP
567
568 /* Extract additional MAC addresses if available */
569 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
570 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
571
572 for (i = 1; i < num_mac; i++) {
573 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 574 ETH_ALEN);
831e85f3 575 mvm->addresses[i].addr[5]++;
8ca151b5
JB
576 hw->wiphy->n_addresses++;
577 }
578
fe0f2de3
IP
579 iwl_mvm_reset_phy_ctxts(mvm);
580
999d2568 581 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 582
8ca151b5
JB
583 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
584
c7d42480 585 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC
586 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
587 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
588
859d914c 589 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC
590 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
591 else
592 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
593
57fbcce3
JB
594 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
595 hw->wiphy->bands[NL80211_BAND_2GHZ] =
596 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
597 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
598 hw->wiphy->bands[NL80211_BAND_5GHZ] =
599 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 600
859d914c
JB
601 if (fw_has_capa(&mvm->fw->ucode_capa,
602 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
603 fw_has_api(&mvm->fw->ucode_capa,
604 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 605 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES
606 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
607 }
608
8ca151b5
JB
609 hw->wiphy->hw_version = mvm->trans->hw_id;
610
ade50652 611 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB
612 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
613 else
614 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
615
ca986ad9 616 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG
617 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
618 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
619 /* we create the 802.11 header and zero length SSID IE. */
620 hw->wiphy->max_sched_scan_ie_len =
621 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS
622 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
623 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
624
625 /*
626 * the firmware uses u8 for num of iterations, but 0xff is saved for
627 * infinite loop, so the maximum number of iterations is actually 254.
628 */
629 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 630
8ca151b5 631 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 632 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 633 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 634 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 635 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG
636 NL80211_FEATURE_STATIC_SMPS |
637 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 638
859d914c
JB
639 if (fw_has_capa(&mvm->fw->ucode_capa,
640 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 641 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB
642 if (fw_has_capa(&mvm->fw->ucode_capa,
643 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 644 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 645
859d914c
JB
646 if (fw_has_capa(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO
648 hw->wiphy->features |=
649 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
650
859d914c
JB
651 if (fw_has_capa(&mvm->fw->ucode_capa,
652 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO
653 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
654
aacf8f18
AS
655 if (fw_has_api(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
657 wiphy_ext_feature_set(hw->wiphy,
658 NL80211_EXT_FEATURE_SCAN_START_TIME);
659 wiphy_ext_feature_set(hw->wiphy,
660 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
661 wiphy_ext_feature_set(hw->wiphy,
662 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
663 }
664
8f691af9
ZR
665 if (iwl_mvm_is_oce_supported(mvm)) {
666 wiphy_ext_feature_set(hw->wiphy,
667 NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
668 wiphy_ext_feature_set(hw->wiphy,
669 NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
670 wiphy_ext_feature_set(hw->wiphy,
671 NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
672 wiphy_ext_feature_set(hw->wiphy,
673 NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
674 }
675
8ca151b5
JB
676 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
677
678#ifdef CONFIG_PM_SLEEP
d15a747f
EP
679 if (iwl_mvm_is_d0i3_supported(mvm) &&
680 device_can_wakeup(mvm->trans->dev)) {
681 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
682 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP
683 }
684
eef187a7 685 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB
686 mvm->trans->ops->d3_suspend &&
687 mvm->trans->ops->d3_resume &&
688 device_can_wakeup(mvm->trans->dev)) {
91742449
EP
689 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
690 WIPHY_WOWLAN_DISCONNECT |
691 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
692 WIPHY_WOWLAN_RFKILL_RELEASE |
693 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 694 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB
695 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
696 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
697 WIPHY_WOWLAN_4WAY_HANDSHAKE;
698
699 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
700 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
701 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 702 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2 703 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB
704 }
705#endif
706
77736923
EP
707#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
708 /* assign default bcast filtering configuration */
709 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
710#endif
711
8ca151b5
JB
712 ret = iwl_mvm_leds_init(mvm);
713 if (ret)
714 return ret;
715
859d914c
JB
716 if (fw_has_capa(&mvm->fw->ucode_capa,
717 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN
718 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
719 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 720 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN
721 }
722
859d914c
JB
723 if (fw_has_capa(&mvm->fw->ucode_capa,
724 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN
725 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
726 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
727 }
728
93190fb0 729 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS
730 if (!iwl_mvm_is_csum_supported(mvm)) {
731 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
732 NETIF_F_RXCSUM);
733 /* We may support SW TX CSUM */
734 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
735 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
736 }
41837ca9 737
b7327d89
EG
738 ret = ieee80211_register_hw(mvm->hw);
739 if (ret)
740 iwl_mvm_leds_exit(mvm);
de8ba41b 741 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 742
91b08c2d
AE
743 if (mvm->cfg->vht_mu_mimo_supported)
744 wiphy_ext_feature_set(hw->wiphy,
745 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
746
b7327d89 747 return ret;
8ca151b5
JB
748}
749
b2492501
AN
750static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
751 struct ieee80211_sta *sta,
752 struct sk_buff *skb)
753{
754 struct iwl_mvm_sta *mvmsta;
755 bool defer = false;
756
757 /*
758 * double check the IN_D0I3 flag both before and after
759 * taking the spinlock, in order to prevent taking
760 * the spinlock when not needed.
761 */
762 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
763 return false;
764
765 spin_lock(&mvm->d0i3_tx_lock);
766 /*
767 * testing the flag again ensures the skb dequeue
768 * loop (on d0i3 exit) hasn't run yet.
769 */
770 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
771 goto out;
772
773 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 774 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN
775 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
776 goto out;
777
778 __skb_queue_tail(&mvm->d0i3_tx, skb);
779 ieee80211_stop_queues(mvm->hw);
780
781 /* trigger wakeup */
782 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
783 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
784
785 defer = true;
786out:
787 spin_unlock(&mvm->d0i3_tx_lock);
788 return defer;
789}
790
8ca151b5
JB
791static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
792 struct ieee80211_tx_control *control,
793 struct sk_buff *skb)
794{
795 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB
796 struct ieee80211_sta *sta = control->sta;
797 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
798 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 799
9ee718aa
EL
800 if (iwl_mvm_is_radio_killed(mvm)) {
801 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB
802 goto drop;
803 }
804
d20e30af 805 if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG
806 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
807 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB
808 goto drop;
809
eb045e6e
DS
810 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
811 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
812 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
813 ieee80211_is_mgmt(hdr->frame_control) &&
814 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
3e56eadf
JB
815 sta = NULL;
816
dc1aca22
AO
817 /* If there is no sta, and it's not offchannel - send through AP */
818 if (info->control.vif->type == NL80211_IFTYPE_STATION &&
819 info->hw_queue != IWL_MVM_OFFCHANNEL_QUEUE && !sta) {
820 struct iwl_mvm_vif *mvmvif =
821 iwl_mvm_vif_from_mac80211(info->control.vif);
822 u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
823
824 if (ap_sta_id < IWL_MVM_STATION_COUNT) {
825 /* mac80211 holds rcu read lock */
826 sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
827 if (IS_ERR_OR_NULL(sta))
828 goto drop;
829 }
830 }
831
3e56eadf 832 if (sta) {
b2492501
AN
833 if (iwl_mvm_defer_tx(mvm, sta, skb))
834 return;
3e56eadf 835 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB
836 goto drop;
837 return;
838 }
839
840 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
841 goto drop;
842 return;
843 drop:
844 ieee80211_free_txskb(hw, skb);
845}
846
205e2210
EG
847static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
848{
849 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
850 return false;
851 return true;
852}
853
854static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
855{
856 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
857 return false;
858 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
859 return true;
860
861 /* enabled by default */
862 return true;
863}
864
7174beb6
JB
865#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
866 do { \
867 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
868 break; \
869 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG
870 } while (0)
871
872static void
873iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
874 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
875 enum ieee80211_ampdu_mlme_action action)
876{
877 struct iwl_fw_dbg_trigger_tlv *trig;
878 struct iwl_fw_dbg_trigger_ba *ba_trig;
879
6c042d75
SS
880 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
881 FW_DBG_TRIGGER_BA);
882 if (!trig)
4203263d
EG
883 return;
884
4203263d
EG
885 ba_trig = (void *)trig->data;
886
4203263d
EG
887 switch (action) {
888 case IEEE80211_AMPDU_TX_OPERATIONAL: {
889 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
890 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
891
892 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
893 "TX AGG START: MAC %pM tid %d ssn %d\n",
894 sta->addr, tid, tid_data->ssn);
895 break;
896 }
897 case IEEE80211_AMPDU_TX_STOP_CONT:
898 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
899 "TX AGG STOP: MAC %pM tid %d\n",
900 sta->addr, tid);
901 break;
902 case IEEE80211_AMPDU_RX_START:
903 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
904 "RX AGG START: MAC %pM tid %d ssn %d\n",
905 sta->addr, tid, rx_ba_ssn);
906 break;
907 case IEEE80211_AMPDU_RX_STOP:
908 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
909 "RX AGG STOP: MAC %pM tid %d\n",
910 sta->addr, tid);
911 break;
912 default:
913 break;
914 }
915}
916
8ca151b5
JB
917static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
918 struct ieee80211_vif *vif,
50ea05ef 919 struct ieee80211_ampdu_params *params)
8ca151b5
JB
920{
921 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
922 int ret;
b2492501 923 bool tx_agg_ref = false;
50ea05ef
SS
924 struct ieee80211_sta *sta = params->sta;
925 enum ieee80211_ampdu_mlme_action action = params->action;
926 u16 tid = params->tid;
927 u16 *ssn = &params->ssn;
514c3069 928 u16 buf_size = params->buf_size;
bb81bb68 929 bool amsdu = params->amsdu;
10b2b201 930 u16 timeout = params->timeout;
8ca151b5
JB
931
932 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
933 sta->addr, tid, action);
934
935 if (!(mvm->nvm_data->sku_cap_11n_enable))
936 return -EACCES;
937
b2492501 938 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP
939 switch (action) {
940 case IEEE80211_AMPDU_TX_START:
941 case IEEE80211_AMPDU_TX_STOP_CONT:
942 case IEEE80211_AMPDU_TX_STOP_FLUSH:
943 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
944 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 945 /*
9256c205
EP
946 * for tx start, wait synchronously until D0i3 exit to
947 * get the correct sequence number for the tid.
948 * additionally, some other ampdu actions use direct
949 * target access, which is not handled automatically
950 * by the trans layer (unlike commands), so wait for
951 * d0i3 exit in these cases as well.
b2492501 952 */
d40fc489
GG
953 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
954 if (ret)
955 return ret;
956
957 tx_agg_ref = true;
9256c205
EP
958 break;
959 default:
960 break;
b2492501
AN
961 }
962
8ca151b5
JB
963 mutex_lock(&mvm->mutex);
964
965 switch (action) {
966 case IEEE80211_AMPDU_RX_START:
b0ffe455
JB
967 if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id ==
968 iwl_mvm_sta_from_mac80211(sta)->sta_id) {
969 struct iwl_mvm_vif *mvmvif;
970 u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
971 struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
972
973 mdata->opened_rx_ba_sessions = true;
974 mvmvif = iwl_mvm_vif_from_mac80211(vif);
975 cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
976 }
205e2210 977 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB
978 ret = -EINVAL;
979 break;
980 }
10b2b201
SS
981 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
982 timeout);
8ca151b5
JB
983 break;
984 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS
985 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
986 timeout);
8ca151b5
JB
987 break;
988 case IEEE80211_AMPDU_TX_START:
205e2210 989 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG
990 ret = -EINVAL;
991 break;
992 }
8ca151b5
JB
993 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
994 break;
995 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG
996 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
997 break;
8ca151b5
JB
998 case IEEE80211_AMPDU_TX_STOP_FLUSH:
999 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 1000 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB
1001 break;
1002 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG
1003 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
1004 buf_size, amsdu);
8ca151b5
JB
1005 break;
1006 default:
1007 WARN_ON_ONCE(1);
1008 ret = -EINVAL;
1009 break;
1010 }
4203263d
EG
1011
1012 if (!ret) {
1013 u16 rx_ba_ssn = 0;
1014
1015 if (action == IEEE80211_AMPDU_RX_START)
1016 rx_ba_ssn = *ssn;
1017
1018 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1019 rx_ba_ssn, action);
1020 }
8ca151b5
JB
1021 mutex_unlock(&mvm->mutex);
1022
b2492501
AN
1023 /*
1024 * If the tid is marked as started, we won't use it for offloaded
1025 * traffic on the next D0i3 entry. It's safe to unref.
1026 */
1027 if (tx_agg_ref)
1028 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1029
8ca151b5
JB
1030 return ret;
1031}
1032
1033static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1034 struct ieee80211_vif *vif)
1035{
1036 struct iwl_mvm *mvm = data;
1037 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1038
1039 mvmvif->uploaded = false;
0ae98812 1040 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1041
8ca151b5
JB
1042 spin_lock_bh(&mvm->time_event_lock);
1043 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1044 spin_unlock_bh(&mvm->time_event_lock);
1045
fe0f2de3 1046 mvmvif->phy_ctxt = NULL;
8a275bad 1047 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
86e177d8 1048 memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data));
8ca151b5
JB
1049}
1050
1051static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1052{
58629d9d
JB
1053 /* clear the D3 reconfig, we only need it to avoid dumping a
1054 * firmware coredump on reconfiguration, we shouldn't do that
1055 * on D3->D0 transition
1056 */
b6eaa45a 1057 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB
1058 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1059 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1060 }
1bd3cbc1 1061
744cb695
EP
1062 /* cleanup all stale references (scan, roc), but keep the
1063 * ucode_down ref until reconfig is complete
1064 */
1065 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1066
fcb6b92a 1067 iwl_mvm_stop_device(mvm);
8ca151b5 1068
9af91f46 1069 mvm->scan_status = 0;
b1873300 1070 mvm->ps_disabled = false;
31b8b343 1071 mvm->calibrating = false;
8ca151b5
JB
1072
1073 /* just in case one was running */
305d236e 1074 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB
1075 ieee80211_remain_on_channel_expired(mvm->hw);
1076
737719fe
AN
1077 /*
1078 * cleanup all interfaces, even inactive ones, as some might have
1079 * gone down during the HW restart
1080 */
1081 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1082
fe0f2de3 1083 mvm->p2p_device_vif = NULL;
0ae98812 1084 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP
1085
1086 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1087 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
24afba76 1088 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
8a275bad 1089 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1090 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB
1091
1092 ieee80211_wake_queues(mvm->hw);
1093
228670b2
EP
1094 /* clear any stale d0i3 state */
1095 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1096
8ca151b5 1097 mvm->vif_count = 0;
113a0447 1098 mvm->rx_ba_sessions = 0;
7174beb6 1099 mvm->fwrt.dump.conf = FW_DBG_INVALID;
baf41bc3 1100 mvm->monitor_on = false;
91a8bcde
JB
1101
1102 /* keep statistics ticking */
1103 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB
1104}
1105
a0a09243 1106int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1107{
8ca151b5
JB
1108 int ret;
1109
a0a09243 1110 lockdep_assert_held(&mvm->mutex);
8ca151b5 1111
bf8b286f
JB
1112 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1113 /*
1114 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1115 * so later code will - from now on - see that we're doing it.
1116 */
1117 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1118 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
a42b2af3 1119 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1120 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC
1121 } else {
1122 /* Hold the reference to prevent runtime suspend while
1123 * the start procedure runs. It's a bit confusing
1124 * that the UCODE_DOWN reference is taken, but it just
1125 * means "UCODE is not UP yet". ( TODO: rename this
1126 * reference).
1127 */
1128 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1129 }
8ca151b5 1130 ret = iwl_mvm_up(mvm);
c47af22a 1131
da2eb669
SS
1132 iwl_fw_dbg_apply_point(&mvm->fwrt, IWL_FW_INI_APPLY_POST_INIT);
1133
c47af22a
JB
1134 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1135 /* Something went wrong - we need to finish some cleanup
1136 * that normally iwl_mvm_mac_restart_complete() below
1137 * would do.
1138 */
1139 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
a75b9b33 1140#ifdef CONFIG_PM
c47af22a 1141 iwl_mvm_d0i3_enable_tx(mvm, NULL);
a75b9b33 1142#endif
c47af22a
JB
1143 }
1144
a0a09243
LC
1145 return ret;
1146}
1147
1148static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1149{
1150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1151 int ret;
1152
37948fcf
EP
1153 /* Some hw restart cleanups must not hold the mutex */
1154 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1155 /*
1156 * Make sure we are out of d0i3. This is needed
1157 * to make sure the reference accounting is correct
1158 * (and there is no stale d0i3_exit_work).
1159 */
1160 wait_event_timeout(mvm->d0i3_exit_waitq,
1161 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1162 &mvm->status),
1163 HZ);
1164 }
1165
a0a09243
LC
1166 mutex_lock(&mvm->mutex);
1167 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB
1168 mutex_unlock(&mvm->mutex);
1169
1170 return ret;
1171}
1172
cf2c92d8 1173static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1174{
8ca151b5
JB
1175 int ret;
1176
1177 mutex_lock(&mvm->mutex);
1178
1179 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
a75b9b33 1180#ifdef CONFIG_PM
b2492501 1181 iwl_mvm_d0i3_enable_tx(mvm, NULL);
a75b9b33 1182#endif
e7afe89f 1183 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB
1184 if (ret)
1185 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1186 ret);
1187
7498cf4c
EP
1188 /* allow transport/FW low power modes */
1189 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1190
cbd2ae2d
AN
1191 /*
1192 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1193 * of packets the FW sent out, so we must reconnect.
1194 */
1195 iwl_mvm_teardown_tdls_peers(mvm);
1196
8ca151b5
JB
1197 mutex_unlock(&mvm->mutex);
1198}
1199
088070a2
EP
1200static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1201{
b7282643
LC
1202 if (iwl_mvm_is_d0i3_supported(mvm) &&
1203 iwl_mvm_enter_d0i3_on_suspend(mvm))
1204 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1205 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1206 &mvm->status),
1207 HZ),
1208 "D0i3 exit on resume timed out\n");
088070a2
EP
1209}
1210
cf2c92d8
EP
1211static void
1212iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1213 enum ieee80211_reconfig_type reconfig_type)
1214{
1215 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1216
1217 switch (reconfig_type) {
1218 case IEEE80211_RECONFIG_TYPE_RESTART:
1219 iwl_mvm_restart_complete(mvm);
1220 break;
1221 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1222 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP
1223 break;
1224 }
1225}
1226
a0a09243 1227void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1228{
a0a09243 1229 lockdep_assert_held(&mvm->mutex);
7498cf4c 1230
91a8bcde
JB
1231 /* firmware counters are obviously reset now, but we shouldn't
1232 * partially track so also clear the fw_reset_accu counters.
1233 */
1234 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1235
8ca151b5
JB
1236 /* async_handlers_wk is now blocked */
1237
1238 /*
1239 * The work item could be running or queued if the
1240 * ROC time event stops just as we get here.
1241 */
c779273b 1242 flush_work(&mvm->roc_done_wk);
8ca151b5 1243
fcb6b92a 1244 iwl_mvm_stop_device(mvm);
8ca151b5
JB
1245
1246 iwl_mvm_async_handlers_purge(mvm);
1247 /* async_handlers_list is empty and will stay empty: HW is stopped */
1248
1249 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1250 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1251
0a79a0c0 1252 /*
155f7e04
EG
1253 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1254 * hw (as restart_complete() won't be called in this case) and mac80211
1255 * won't execute the restart.
8b2b9fbf
AN
1256 * But make sure to cleanup interfaces that have gone down before/during
1257 * HW restart was requested.
0a79a0c0 1258 */
155f7e04
EG
1259 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1260 test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1261 &mvm->status))
8b2b9fbf
AN
1262 ieee80211_iterate_interfaces(mvm->hw, 0,
1263 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1264
963221be
AB
1265 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1266 * make sure there's nothing left there and warn if any is found.
1267 */
859d914c 1268 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB
1269 int i;
1270
507e4cda 1271 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC
1272 if (WARN_ONCE(mvm->scan_uid_status[i],
1273 "UMAC scan UID %d status was not cleaned\n",
1274 i))
1275 mvm->scan_uid_status[i] = 0;
963221be
AB
1276 }
1277 }
a0a09243 1278}
bc44886d 1279
a0a09243
LC
1280static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1281{
1282 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1283
1284 flush_work(&mvm->d0i3_exit_work);
1285 flush_work(&mvm->async_handlers_wk);
24afba76 1286 flush_work(&mvm->add_stream_wk);
771147b0
JB
1287
1288 /*
1289 * Lock and clear the firmware running bit here already, so that
1290 * new commands coming in elsewhere, e.g. from debugfs, will not
1291 * be able to proceed. This is important here because one of those
7174beb6 1292 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB
1293 * don't stop debugfs accesses before canceling that it could be
1294 * retriggered after we flush it but before we've cleared the bit.
1295 */
1296 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1297
7174beb6 1298 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1299 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1300 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1301 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC
1302
1303 mutex_lock(&mvm->mutex);
1304 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB
1305 mutex_unlock(&mvm->mutex);
1306
1307 /*
1308 * The worker might have been waiting for the mutex, let it run and
1309 * discover that its list is now empty.
1310 */
1311 cancel_work_sync(&mvm->async_handlers_wk);
1312}
1313
fe0f2de3
IP
1314static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1315{
1316 u16 i;
1317
1318 lockdep_assert_held(&mvm->mutex);
1319
1320 for (i = 0; i < NUM_PHY_CTX; i++)
1321 if (!mvm->phy_ctxts[i].ref)
1322 return &mvm->phy_ctxts[i];
1323
1324 IWL_ERR(mvm, "No available PHY context\n");
1325 return NULL;
1326}
1327
d44c3fe6
AA
1328static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1329 s16 tx_power)
1330{
0791c2fc
HD
1331 int len;
1332 union {
1333 struct iwl_dev_tx_power_cmd v5;
1334 struct iwl_dev_tx_power_cmd_v4 v4;
1335 } cmd = {
1336 .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1337 .v5.v3.mac_context_id =
d44c3fe6 1338 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
0791c2fc 1339 .v5.v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6
AA
1340 };
1341
d44c3fe6 1342 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
0791c2fc 1343 cmd.v5.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1344
0791c2fc
HD
1345 if (fw_has_api(&mvm->fw->ucode_capa,
1346 IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1347 len = sizeof(cmd.v5);
1348 else if (fw_has_capa(&mvm->fw->ucode_capa,
1349 IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1350 len = sizeof(cmd.v4);
1351 else
1352 len = sizeof(cmd.v4.v3);
da03f029
JB
1353
1354 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA
1355}
1356
8ca151b5
JB
1357static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1358 struct ieee80211_vif *vif)
1359{
1360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1361 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1362 int ret;
1363
aa5e1832 1364 mvmvif->mvm = mvm;
86e177d8 1365 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
aa5e1832 1366
d40fc489
GG
1367 /*
1368 * make sure D0i3 exit is completed, otherwise a target access
1369 * during tx queue configuration could be done when still in
1370 * D0i3 state.
1371 */
1372 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1373 if (ret)
1374 return ret;
1375
8ca151b5
JB
1376 /*
1377 * Not much to do here. The stack will not allow interface
1378 * types or combinations that we didn't advertise, so we
1379 * don't really have to check the types.
1380 */
1381
1382 mutex_lock(&mvm->mutex);
1383
33cef925
JB
1384 /* make sure that beacon statistics don't go backwards with FW reset */
1385 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1386 mvmvif->beacon_stats.accu_num_beacons +=
1387 mvmvif->beacon_stats.num_beacons;
1388
e89044d7 1389 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB
1390 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1391 if (ret)
1392 goto out_unlock;
1393
1c2abf72 1394 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP
1395 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1396 mvm->vif_count++;
ea183d02 1397
8ca151b5
JB
1398 /*
1399 * The AP binding flow can be done only after the beacon
1400 * template is configured (which happens only in the mac80211
1401 * start_ap() flow), and adding the broadcast station can happen
1402 * only after the binding.
1403 * In addition, since modifying the MAC before adding a bcast
1404 * station is not allowed by the FW, delay the adding of MAC context to
1405 * the point where we can also add the bcast station.
1406 * In short: there's not much we can do at this point, other than
1407 * allocating resources :)
1408 */
5023d966
JB
1409 if (vif->type == NL80211_IFTYPE_AP ||
1410 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1411 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB
1412 if (ret) {
1413 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1414 goto out_release;
1415 }
1416
c8f54701
JB
1417 /*
1418 * Only queue for this station is the mcast queue,
1419 * which shouldn't be in TFD mask anyway
1420 */
1421 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1422 0, vif->type,
1423 IWL_STA_MULTICAST);
1424 if (ret)
1425 goto out_release;
26d6c16b 1426
77740cb4 1427 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB
1428 goto out_unlock;
1429 }
1430
93190fb0
AA
1431 mvmvif->features |= hw->netdev_features;
1432
8ca151b5
JB
1433 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1434 if (ret)
1435 goto out_release;
1436
999609f1 1437 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1438 if (ret)
fd66fc1c 1439 goto out_remove_mac;
8ca151b5 1440
7df15b1e 1441 /* beacon filtering */
a1022927 1442 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP
1443 if (ret)
1444 goto out_remove_mac;
1445
7df15b1e 1446 if (!mvm->bf_allowed_vif &&
73e5f2c5 1447 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1448 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO
1449 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1450 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG
1451 }
1452
8ca151b5
JB
1453 /*
1454 * P2P_DEVICE interface does not have a channel context assigned to it,
1455 * so a dedicated PHY context is allocated to it and the corresponding
1456 * MAC context is bound to it at this stage.
1457 */
1458 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1459
fe0f2de3
IP
1460 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1461 if (!mvmvif->phy_ctxt) {
1462 ret = -ENOSPC;
bd3351ba 1463 goto out_free_bf;
fe0f2de3 1464 }
8ca151b5 1465
53a9d61e 1466 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB
1467 ret = iwl_mvm_binding_add_vif(mvm, vif);
1468 if (ret)
53a9d61e 1469 goto out_unref_phy;
8ca151b5 1470
d197358b 1471 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
8ca151b5
JB
1472 if (ret)
1473 goto out_unbind;
1474
1475 /* Save a pointer to p2p device vif, so it can later be used to
1476 * update the p2p device MAC when a GO is started/stopped */
1477 mvm->p2p_device_vif = vif;
1478 }
1479
b0ffe455
JB
1480 iwl_mvm_tcm_add_vif(mvm, vif);
1481
baf41bc3
ST
1482 if (vif->type == NL80211_IFTYPE_MONITOR)
1483 mvm->monitor_on = true;
1484
63494374 1485 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB
1486 goto out_unlock;
1487
1488 out_unbind:
1489 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1490 out_unref_phy:
fe0f2de3 1491 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP
1492 out_free_bf:
1493 if (mvm->bf_allowed_vif == mvmvif) {
1494 mvm->bf_allowed_vif = NULL;
a20fd398
AO
1495 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1496 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1497 }
8ca151b5
JB
1498 out_remove_mac:
1499 mvmvif->phy_ctxt = NULL;
1500 iwl_mvm_mac_ctxt_remove(mvm, vif);
1501 out_release:
5ee2b215
AB
1502 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1503 mvm->vif_count--;
8ca151b5
JB
1504 out_unlock:
1505 mutex_unlock(&mvm->mutex);
1506
d40fc489
GG
1507 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1508
8ca151b5
JB
1509 return ret;
1510}
1511
38a12b5b
JB
1512static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1513 struct ieee80211_vif *vif)
8ca151b5 1514{
8ca151b5
JB
1515 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1516 /*
1517 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1518 * We assume here that all the packets sent to the OFFCHANNEL
1519 * queue are sent in ROC session.
1520 */
1521 flush_work(&mvm->roc_done_wk);
8ca151b5 1522 }
38a12b5b
JB
1523}
1524
1525static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1526 struct ieee80211_vif *vif)
1527{
1528 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1529 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
86e177d8 1530 struct iwl_probe_resp_data *probe_data;
38a12b5b
JB
1531
1532 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5 1533
b0ffe455
JB
1534 if (!(vif->type == NL80211_IFTYPE_AP ||
1535 vif->type == NL80211_IFTYPE_ADHOC))
1536 iwl_mvm_tcm_rm_vif(mvm, vif);
1537
8ca151b5
JB
1538 mutex_lock(&mvm->mutex);
1539
86e177d8
GG
1540 probe_data = rcu_dereference_protected(mvmvif->probe_resp_data,
1541 lockdep_is_held(&mvm->mutex));
1542 RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1543 if (probe_data)
1544 kfree_rcu(probe_data, rcu_head);
1545
7df15b1e
HG
1546 if (mvm->bf_allowed_vif == mvmvif) {
1547 mvm->bf_allowed_vif = NULL;
a20fd398
AO
1548 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1549 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG
1550 }
1551
63494374
JB
1552 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1553
8ca151b5
JB
1554 /*
1555 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1556 * interface is be handled as part of the stop_ap flow.
8ca151b5 1557 */
5023d966
JB
1558 if (vif->type == NL80211_IFTYPE_AP ||
1559 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS
1560#ifdef CONFIG_NL80211_TESTMODE
1561 if (vif == mvm->noa_vif) {
1562 mvm->noa_vif = NULL;
1563 mvm->noa_duration = 0;
1564 }
1565#endif
26d6c16b 1566 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1567 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB
1568 goto out_release;
1569 }
1570
1571 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1572 mvm->p2p_device_vif = NULL;
d197358b 1573 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
8ca151b5 1574 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1575 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB
1576 mvmvif->phy_ctxt = NULL;
1577 }
1578
5ee2b215 1579 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1580 mvm->vif_count--;
1c2abf72 1581
999609f1 1582 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB
1583 iwl_mvm_mac_ctxt_remove(mvm, vif);
1584
baf41bc3
ST
1585 if (vif->type == NL80211_IFTYPE_MONITOR)
1586 mvm->monitor_on = false;
1587
8ca151b5 1588out_release:
8ca151b5
JB
1589 mutex_unlock(&mvm->mutex);
1590}
1591
1592static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1593{
8ca151b5
JB
1594 return 0;
1595}
1596
e59647ea
EP
1597struct iwl_mvm_mc_iter_data {
1598 struct iwl_mvm *mvm;
1599 int port_id;
1600};
1601
1602static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1603 struct ieee80211_vif *vif)
1604{
1605 struct iwl_mvm_mc_iter_data *data = _data;
1606 struct iwl_mvm *mvm = data->mvm;
1607 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
97bce57b
LC
1608 struct iwl_host_cmd hcmd = {
1609 .id = MCAST_FILTER_CMD,
1610 .flags = CMD_ASYNC,
1611 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1612 };
e59647ea
EP
1613 int ret, len;
1614
1615 /* if we don't have free ports, mcast frames will be dropped */
1616 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1617 return;
1618
1619 if (vif->type != NL80211_IFTYPE_STATION ||
1620 !vif->bss_conf.assoc)
1621 return;
1622
1623 cmd->port_id = data->port_id++;
1624 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1625 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1626
97bce57b
LC
1627 hcmd.len[0] = len;
1628 hcmd.data[0] = cmd;
1629
1630 ret = iwl_mvm_send_cmd(mvm, &hcmd);
e59647ea
EP
1631 if (ret)
1632 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1633}
1634
1635static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1636{
1637 struct iwl_mvm_mc_iter_data iter_data = {
1638 .mvm = mvm,
88f2fd73
MG
1639 };
1640
e59647ea
EP
1641 lockdep_assert_held(&mvm->mutex);
1642
1643 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1644 return;
1645
1c4abec0 1646 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP
1647 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1648 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG
1649}
1650
e59647ea
EP
1651static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1652 struct netdev_hw_addr_list *mc_list)
8ca151b5 1653{
e59647ea
EP
1654 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1655 struct iwl_mcast_filter_cmd *cmd;
1656 struct netdev_hw_addr *addr;
f3bd58f4
MS
1657 int addr_count;
1658 bool pass_all;
e59647ea
EP
1659 int len;
1660
f3bd58f4
MS
1661 addr_count = netdev_hw_addr_list_count(mc_list);
1662 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1663 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1664 if (pass_all)
e59647ea 1665 addr_count = 0;
e59647ea
EP
1666
1667 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1668 cmd = kzalloc(len, GFP_ATOMIC);
1669 if (!cmd)
1670 return 0;
1671
1672 if (pass_all) {
1673 cmd->pass_all = 1;
1674 return (u64)(unsigned long)cmd;
1675 }
1676
1677 netdev_hw_addr_list_for_each(addr, mc_list) {
1678 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1679 cmd->count, addr->addr);
1680 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1681 addr->addr, ETH_ALEN);
1682 cmd->count++;
1683 }
1684
1685 return (u64)(unsigned long)cmd;
8ca151b5
JB
1686}
1687
1688static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1689 unsigned int changed_flags,
1690 unsigned int *total_flags,
1691 u64 multicast)
1692{
e59647ea
EP
1693 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1694 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1695
e59647ea 1696 mutex_lock(&mvm->mutex);
51b6b9e0 1697
e59647ea
EP
1698 /* replace previous configuration */
1699 kfree(mvm->mcast_filter_cmd);
1700 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1701
e59647ea
EP
1702 if (!cmd)
1703 goto out;
51b6b9e0 1704
61e7d91b
LC
1705 if (changed_flags & FIF_ALLMULTI)
1706 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1707
1708 if (cmd->pass_all)
1709 cmd->count = 0;
1710
e59647ea
EP
1711 iwl_mvm_recalc_multicast(mvm);
1712out:
1713 mutex_unlock(&mvm->mutex);
1714 *total_flags = 0;
51b6b9e0
EG
1715}
1716
effd1929
AO
1717static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1718 struct ieee80211_vif *vif,
1719 unsigned int filter_flags,
1720 unsigned int changed_flags)
1721{
1722 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1723
1724 /* We support only filter for probe requests */
1725 if (!(changed_flags & FIF_PROBE_REQ))
1726 return;
1727
1728 /* Supported only for p2p client interfaces */
1729 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1730 !vif->p2p)
1731 return;
1732
1733 mutex_lock(&mvm->mutex);
1734 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1735 mutex_unlock(&mvm->mutex);
1736}
1737
c87163b9
EP
1738#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1739struct iwl_bcast_iter_data {
1740 struct iwl_mvm *mvm;
1741 struct iwl_bcast_filter_cmd *cmd;
1742 u8 current_filter;
1743};
1744
1745static void
1746iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1747 const struct iwl_fw_bcast_filter *in_filter,
1748 struct iwl_fw_bcast_filter *out_filter)
1749{
1750 struct iwl_fw_bcast_filter_attr *attr;
1751 int i;
1752
1753 memcpy(out_filter, in_filter, sizeof(*out_filter));
1754
1755 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1756 attr = &out_filter->attrs[i];
1757
1758 if (!attr->mask)
1759 break;
1760
2ee8f021
EP
1761 switch (attr->reserved1) {
1762 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1763 if (vif->bss_conf.arp_addr_cnt != 1) {
1764 attr->mask = 0;
1765 continue;
1766 }
1767
1768 attr->val = vif->bss_conf.arp_addr_list[0];
1769 break;
1770 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1771 attr->val = *(__be32 *)&vif->addr[2];
1772 break;
1773 default:
1774 break;
1775 }
1776 attr->reserved1 = 0;
c87163b9
EP
1777 out_filter->num_attrs++;
1778 }
1779}
1780
1781static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1782 struct ieee80211_vif *vif)
1783{
1784 struct iwl_bcast_iter_data *data = _data;
1785 struct iwl_mvm *mvm = data->mvm;
1786 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1788 struct iwl_fw_bcast_mac *bcast_mac;
1789 int i;
1790
1791 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1792 return;
1793
1794 bcast_mac = &cmd->macs[mvmvif->id];
1795
e48393e8
IP
1796 /*
1797 * enable filtering only for associated stations, but not for P2P
1798 * Clients
1799 */
1800 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1801 !vif->bss_conf.assoc)
c87163b9
EP
1802 return;
1803
1804 bcast_mac->default_discard = 1;
1805
1806 /* copy all configured filters */
1807 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1808 /*
1809 * Make sure we don't exceed our filters limit.
1810 * if there is still a valid filter to be configured,
1811 * be on the safe side and just allow bcast for this mac.
1812 */
1813 if (WARN_ON_ONCE(data->current_filter >=
1814 ARRAY_SIZE(cmd->filters))) {
1815 bcast_mac->default_discard = 0;
1816 bcast_mac->attached_filters = 0;
1817 break;
1818 }
1819
1820 iwl_mvm_set_bcast_filter(vif,
1821 &mvm->bcast_filters[i],
1822 &cmd->filters[data->current_filter]);
1823
1824 /* skip current filter if it contains no attributes */
1825 if (!cmd->filters[data->current_filter].num_attrs)
1826 continue;
1827
1828 /* attach the filter to current mac */
1829 bcast_mac->attached_filters |=
1830 cpu_to_le16(BIT(data->current_filter));
1831
1832 data->current_filter++;
1833 }
1834}
1835
de06a59e
EP
1836bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1837 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1838{
c87163b9
EP
1839 struct iwl_bcast_iter_data iter_data = {
1840 .mvm = mvm,
de06a59e 1841 .cmd = cmd,
c87163b9
EP
1842 };
1843
3b8983b1
MS
1844 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1845 return false;
1846
de06a59e
EP
1847 memset(cmd, 0, sizeof(*cmd));
1848 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1849 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1850
1851#ifdef CONFIG_IWLWIFI_DEBUGFS
1852 /* use debugfs filters/macs if override is configured */
1853 if (mvm->dbgfs_bcast_filtering.override) {
1854 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1855 sizeof(cmd->filters));
1856 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1857 sizeof(cmd->macs));
1858 return true;
1859 }
1860#endif
c87163b9
EP
1861
1862 /* if no filters are configured, do nothing */
1863 if (!mvm->bcast_filters)
de06a59e 1864 return false;
c87163b9
EP
1865
1866 /* configure and attach these filters for each associated sta vif */
1867 ieee80211_iterate_active_interfaces(
1868 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1869 iwl_mvm_bcast_filter_iterator, &iter_data);
1870
de06a59e
EP
1871 return true;
1872}
34672bb3
EP
1873
1874static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP
1875{
1876 struct iwl_bcast_filter_cmd cmd;
1877
1878 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1879 return 0;
1880
1881 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1882 return 0;
1883
a1022927 1884 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP
1885 sizeof(cmd), &cmd);
1886}
1887#else
34672bb3 1888static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP
1889{
1890 return 0;
1891}
1892#endif
1893
a07a8f37
SS
1894static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1895 struct ieee80211_vif *vif)
1896{
1897 struct iwl_mu_group_mgmt_cmd cmd = {};
1898
1899 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1900 WLAN_MEMBERSHIP_LEN);
1901 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1902 WLAN_USER_POSITION_LEN);
1903
1904 return iwl_mvm_send_cmd_pdu(mvm,
1905 WIDE_ID(DATA_PATH_GROUP,
1906 UPDATE_MU_GROUPS_CMD),
1907 0, sizeof(cmd), &cmd);
1908}
1909
f92659a1
SS
1910static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1911 struct ieee80211_vif *vif)
1912{
1913 if (vif->mu_mimo_owner) {
1914 struct iwl_mu_group_mgmt_notif *notif = _data;
1915
1916 /*
1917 * MU-MIMO Group Id action frame is little endian. We treat
1918 * the data received from firmware as if it came from the
1919 * action frame, so no conversion is needed.
1920 */
1921 ieee80211_update_mu_groups(vif,
1922 (u8 *)&notif->membership_status,
1923 (u8 *)&notif->user_position);
1924 }
1925}
1926
1927void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1928 struct iwl_rx_cmd_buffer *rxb)
1929{
1930 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1931 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1932
1933 ieee80211_iterate_active_interfaces_atomic(
1934 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1935 iwl_mvm_mu_mimo_iface_iterator, notif);
1936}
1937
514c3069
LC
1938static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1939{
1940 u8 byte_num = ppe_pos_bit / 8;
1941 u8 bit_num = ppe_pos_bit % 8;
1942 u8 residue_bits;
1943 u8 res;
1944
1945 if (bit_num <= 5)
1946 return (ppe[byte_num] >> bit_num) &
1947 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1948
1949 /*
1950 * If bit_num > 5, we have to combine bits with next byte.
1951 * Calculate how many bits we need to take from current byte (called
1952 * here "residue_bits"), and add them to bits from next byte.
1953 */
1954
1955 residue_bits = 8 - bit_num;
1956
1957 res = (ppe[byte_num + 1] &
1958 (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
1959 residue_bits;
1960 res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
1961
1962 return res;
1963}
1964
1965static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
1966 struct ieee80211_vif *vif, u8 sta_id)
1967{
1968 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1969 struct iwl_he_sta_context_cmd sta_ctxt_cmd = {
1970 .sta_id = sta_id,
1971 .tid_limit = IWL_MAX_TID_COUNT,
1972 .bss_color = vif->bss_conf.bss_color,
1973 .htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
1974 .frame_time_rts_th =
1975 cpu_to_le16(vif->bss_conf.frame_time_rts_th),
1976 };
1977 struct ieee80211_sta *sta;
1978 u32 flags;
1979 int i;
1980
1981 rcu_read_lock();
1982
1983 sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
1984 if (IS_ERR(sta)) {
1985 rcu_read_unlock();
1986 WARN(1, "Can't find STA to configure HE\n");
1987 return;
1988 }
1989
1990 if (!sta->he_cap.has_he) {
1991 rcu_read_unlock();
1992 return;
1993 }
1994
1995 flags = 0;
1996
1997 /* HTC flags */
1998 if (sta->he_cap.he_cap_elem.mac_cap_info[0] &
1999 IEEE80211_HE_MAC_CAP0_HTC_HE)
2000 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2001 if ((sta->he_cap.he_cap_elem.mac_cap_info[1] &
2002 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2003 (sta->he_cap.he_cap_elem.mac_cap_info[2] &
2004 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2005 u8 link_adap =
2006 ((sta->he_cap.he_cap_elem.mac_cap_info[2] &
2007 IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2008 (sta->he_cap.he_cap_elem.mac_cap_info[1] &
2009 IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2010
2011 if (link_adap == 2)
2012 sta_ctxt_cmd.htc_flags |=
2013 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2014 else if (link_adap == 3)
2015 sta_ctxt_cmd.htc_flags |=
2016 cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2017 }
514c3069
LC
2018 if (sta->he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2019 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2020 if (sta->he_cap.he_cap_elem.mac_cap_info[3] &
2021 IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2022 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2023 if (sta->he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2024 sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2025
189b8d44
NG
2026 /*
2027 * Initialize the PPE thresholds to "None" (7), as described in Table
2028 * 9-262ac of 80211.ax/D3.0.
2029 */
2030 memset(&sta_ctxt_cmd.pkt_ext, 7, sizeof(sta_ctxt_cmd.pkt_ext));
2031
2032 /* If PPE Thresholds exist, parse them into a FW-familiar format. */
514c3069
LC
2033 if (sta->he_cap.he_cap_elem.phy_cap_info[6] &
2034 IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2035 u8 nss = (sta->he_cap.ppe_thres[0] &
2036 IEEE80211_PPE_THRES_NSS_MASK) + 1;
2037 u8 ru_index_bitmap =
2038 (sta->he_cap.ppe_thres[0] &
2039 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK) >>
2040 IEEE80211_PPE_THRES_RU_INDEX_BITMASK_POS;
2041 u8 *ppe = &sta->he_cap.ppe_thres[0];
2042 u8 ppe_pos_bit = 7; /* Starting after PPE header */
2043
2044 /*
2045 * FW currently supports only nss == MAX_HE_SUPP_NSS
2046 *
2047 * If nss > MAX: we can ignore values we don't support
2048 * If nss < MAX: we can set zeros in other streams
2049 */
2050 if (nss > MAX_HE_SUPP_NSS) {
2051 IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
2052 MAX_HE_SUPP_NSS);
2053 nss = MAX_HE_SUPP_NSS;
2054 }
2055
2056 for (i = 0; i < nss; i++) {
2057 u8 ru_index_tmp = ru_index_bitmap << 1;
2058 u8 bw;
2059
2060 for (bw = 0; bw < MAX_HE_CHANNEL_BW_INDX; bw++) {
2061 ru_index_tmp >>= 1;
2062 if (!(ru_index_tmp & 1))
2063 continue;
2064
2065 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][1] =
2066 iwl_mvm_he_get_ppe_val(ppe,
2067 ppe_pos_bit);
2068 ppe_pos_bit +=
2069 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2070 sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw][0] =
2071 iwl_mvm_he_get_ppe_val(ppe,
2072 ppe_pos_bit);
2073 ppe_pos_bit +=
2074 IEEE80211_PPE_THRES_INFO_PPET_SIZE;
2075 }
2076 }
2077
2078 flags |= STA_CTXT_HE_PACKET_EXT;
2079 }
2080 rcu_read_unlock();
2081
2082 /* Mark MU EDCA as enabled, unless none detected on some AC */
2083 flags |= STA_CTXT_HE_MU_EDCA_CW;
2084 for (i = 0; i < AC_NUM; i++) {
2085 struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2086 &mvmvif->queue_params[i].mu_edca_param_rec;
2087
2088 if (!mvmvif->queue_params[i].mu_edca) {
2089 flags &= ~STA_CTXT_HE_MU_EDCA_CW;
2090 break;
2091 }
2092
2093 sta_ctxt_cmd.trig_based_txf[i].cwmin =
2094 cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2095 sta_ctxt_cmd.trig_based_txf[i].cwmax =
2096 cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2097 sta_ctxt_cmd.trig_based_txf[i].aifsn =
2098 cpu_to_le16(mu_edca->aifsn);
2099 sta_ctxt_cmd.trig_based_txf[i].mu_time =
2100 cpu_to_le16(mu_edca->mu_edca_timer);
2101 }
2102
2103 if (vif->bss_conf.multi_sta_back_32bit)
2104 flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2105
2106 if (vif->bss_conf.ack_enabled)
2107 flags |= STA_CTXT_HE_ACK_ENABLED;
2108
2109 if (vif->bss_conf.uora_exists) {
2110 flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2111
2112 sta_ctxt_cmd.rand_alloc_ecwmin =
2113 vif->bss_conf.uora_ocw_range & 0x7;
2114 sta_ctxt_cmd.rand_alloc_ecwmax =
2115 (vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2116 }
2117
2118 /* TODO: support Multi BSSID IE */
2119
2120 sta_ctxt_cmd.flags = cpu_to_le32(flags);
2121
2122 if (iwl_mvm_send_cmd_pdu(mvm, iwl_cmd_id(STA_HE_CTXT_CMD,
2123 DATA_PATH_GROUP, 0),
2124 0, sizeof(sta_ctxt_cmd), &sta_ctxt_cmd))
2125 IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2126}
2127
8ca151b5
JB
2128static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2129 struct ieee80211_vif *vif,
2130 struct ieee80211_bss_conf *bss_conf,
2131 u32 changes)
2132{
2133 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2134 int ret;
2135
6e97b0d2
IP
2136 /*
2137 * Re-calculate the tsf id, as the master-slave relations depend on the
2138 * beacon interval, which was not known when the station interface was
2139 * added.
2140 */
514c3069 2141 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
230ba6c5
LC
2142 if (vif->bss_conf.he_support &&
2143 !iwlwifi_mod_params.disable_11ax)
514c3069
LC
2144 iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2145
6e97b0d2 2146 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
514c3069 2147 }
6e97b0d2 2148
3dfd3a97
JB
2149 /*
2150 * If we're not associated yet, take the (new) BSSID before associating
2151 * so the firmware knows. If we're already associated, then use the old
2152 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2153 * branch for disassociation below.
2154 */
2155 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2156 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2157
2158 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB
2159 if (ret)
2160 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2161
3dfd3a97
JB
2162 /* after sending it once, adopt mac80211 data */
2163 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2164 mvmvif->associated = bss_conf->assoc;
2165
8ca151b5
JB
2166 if (changes & BSS_CHANGED_ASSOC) {
2167 if (bss_conf->assoc) {
33cef925
JB
2168 /* clear statistics to get clean beacon counter */
2169 iwl_mvm_request_statistics(mvm, true);
2170 memset(&mvmvif->beacon_stats, 0,
2171 sizeof(mvmvif->beacon_stats));
2172
8ca151b5 2173 /* add quota for this interface */
7754ae79 2174 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB
2175 if (ret) {
2176 IWL_ERR(mvm, "failed to update quotas\n");
2177 return;
2178 }
016d27e1
JB
2179
2180 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2181 &mvm->status)) {
2182 /*
2183 * If we're restarting then the firmware will
2184 * obviously have lost synchronisation with
2185 * the AP. It will attempt to synchronise by
2186 * itself, but we can make it more reliable by
2187 * scheduling a session protection time event.
2188 *
2189 * The firmware needs to receive a beacon to
2190 * catch up with synchronisation, use 110% of
2191 * the beacon interval.
2192 *
2193 * Set a large maximum delay to allow for more
2194 * than a single interface.
2195 */
2196 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2197 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2198 5 * dur, false);
016d27e1 2199 }
1f3b0ff8
LE
2200
2201 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2202 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2203 if (vif->p2p) {
29a90a49 2204 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG
2205 iwl_mvm_update_smps(mvm, vif,
2206 IWL_MVM_SMPS_REQ_PROT,
2207 IEEE80211_SMPS_DYNAMIC);
2208 }
0ae98812 2209 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE
2210 /*
2211 * If update fails - SF might be running in associated
2212 * mode while disassociated - which is forbidden.
2213 */
2214 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2215 "Failed to update SF upon disassociation\n");
2216
6b28f978
EG
2217 /*
2218 * If we get an assert during the connection (after the
2219 * station has been added, but before the vif is set
2220 * to associated), mac80211 will re-add the station and
2221 * then configure the vif. Since the vif is not
2222 * associated, we would remove the station here and
2223 * this would fail the recovery.
2224 */
2225 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2226 &mvm->status)) {
2227 /*
2228 * Remove AP station now that
2229 * the MAC is unassoc
2230 */
2231 ret = iwl_mvm_rm_sta_id(mvm, vif,
2232 mvmvif->ap_sta_id);
2233 if (ret)
2234 IWL_ERR(mvm,
2235 "failed to remove AP station\n");
2236
2237 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2238 mvm->d0i3_ap_sta_id =
2239 IWL_MVM_INVALID_STA;
2240 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
2241 }
37577fe2 2242
8ca151b5 2243 /* remove quota for this interface */
7754ae79 2244 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB
2245 if (ret)
2246 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP
2247
2248 if (vif->p2p)
2249 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB
2250
2251 /* this will take the cleared BSSID from bss_conf */
2252 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2253 if (ret)
2254 IWL_ERR(mvm,
2255 "failed to update MAC %pM (clear after unassoc)\n",
2256 vif->addr);
8ca151b5 2257 }
a20fd398 2258
a07a8f37
SS
2259 /*
2260 * The firmware tracks the MU-MIMO group on its own.
f92659a1 2261 * However, on HW restart we should restore this data.
a07a8f37
SS
2262 */
2263 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 2264 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS
2265 ret = iwl_mvm_update_mu_groups(mvm, vif);
2266 if (ret)
2267 IWL_ERR(mvm,
2268 "failed to update VHT MU_MIMO groups\n");
2269 }
2270
e59647ea 2271 iwl_mvm_recalc_multicast(mvm);
34672bb3 2272 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2273
a20fd398
AO
2274 /* reset rssi values */
2275 mvmvif->bf_data.ave_beacon_signal = 0;
2276
8e484f0b 2277 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG
2278 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2279 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS
2280 if (fw_has_capa(&mvm->fw->ucode_capa,
2281 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2282 iwl_mvm_config_scan(mvm);
b45242c9
AS
2283 }
2284
2285 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2286 /*
b45242c9 2287 * We received a beacon from the associated AP so
210a544e
JB
2288 * remove the session protection.
2289 */
3edfb5f4 2290 iwl_mvm_stop_session_protection(mvm, vif);
cc87d322 2291
cc87d322
EH
2292 iwl_mvm_sf_update(mvm, vif, false);
2293 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2294 }
2295
283115fb
AA
2296 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2297 /*
2298 * Send power command on every beacon change,
2299 * because we may have not enabled beacon abort yet.
2300 */
2301 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB
2302 ret = iwl_mvm_power_update_mac(mvm);
2303 if (ret)
2304 IWL_ERR(mvm, "failed to update power mode\n");
2305 }
2306
88f2fd73
MG
2307 if (changes & BSS_CHANGED_TXPOWER) {
2308 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2309 bss_conf->txpower);
2310 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2311 }
a20fd398
AO
2312
2313 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2314 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO
2315 /* reset cqm events tracking */
2316 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA
2317 if (mvmvif->bf_data.bf_enabled) {
2318 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2319 if (ret)
2320 IWL_ERR(mvm,
2321 "failed to update CQM thresholds\n");
2322 }
a20fd398 2323 }
2ee8f021
EP
2324
2325 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2326 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2327 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2328 }
8ca151b5
JB
2329}
2330
5023d966
JB
2331static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2332 struct ieee80211_vif *vif)
8ca151b5
JB
2333{
2334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2335 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2336 int ret;
2337
576eeee9
EP
2338 /*
2339 * iwl_mvm_mac_ctxt_add() might read directly from the device
2340 * (the system time), so make sure it is available.
2341 */
2342 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2343 if (ret)
2344 return ret;
2345
8ca151b5
JB
2346 mutex_lock(&mvm->mutex);
2347
2348 /* Send the beacon template */
2349 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2350 if (ret)
2351 goto out_unlock;
2352
6e97b0d2
IP
2353 /*
2354 * Re-calculate the tsf id, as the master-slave relations depend on the
2355 * beacon interval, which was not known when the AP interface was added.
2356 */
2357 if (vif->type == NL80211_IFTYPE_AP)
2358 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2359
94939080
GG
2360 mvmvif->ap_assoc_sta_count = 0;
2361
8ca151b5
JB
2362 /* Add the mac context */
2363 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2364 if (ret)
2365 goto out_unlock;
2366
2367 /* Perform the binding */
2368 ret = iwl_mvm_binding_add_vif(mvm, vif);
2369 if (ret)
2370 goto out_remove;
2371
63dd5d02
SS
2372 /*
2373 * This is not very nice, but the simplest:
2374 * For older FWs adding the mcast sta before the bcast station may
2375 * cause assert 0x2b00.
2376 * This is fixed in later FW so make the order of removal depend on
2377 * the TLV
2378 */
2379 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2380 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2381 if (ret)
2382 goto out_unbind;
2383 /*
2384 * Send the bcast station. At this stage the TBTT and DTIM time
2385 * events are added and applied to the scheduler
2386 */
2387 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2388 if (ret) {
2389 iwl_mvm_rm_mcast_sta(mvm, vif);
2390 goto out_unbind;
2391 }
2392 } else {
2393 /*
2394 * Send the bcast station. At this stage the TBTT and DTIM time
2395 * events are added and applied to the scheduler
2396 */
75fd4fec 2397 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
63dd5d02
SS
2398 if (ret)
2399 goto out_unbind;
75fd4fec 2400 ret = iwl_mvm_add_mcast_sta(mvm, vif);
63dd5d02
SS
2401 if (ret) {
2402 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2403 goto out_unbind;
2404 }
2405 }
26d6c16b 2406
5691e218
IP
2407 /* must be set before quota calculations */
2408 mvmvif->ap_ibss_active = true;
2409
47242744
TM
2410 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2411 iwl_mvm_vif_set_low_latency(mvmvif, true,
2412 LOW_LATENCY_VIF_TYPE);
2413 iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2414 }
2415
a11e144e 2416 /* power updated needs to be done before quotas */
999609f1 2417 iwl_mvm_power_update_mac(mvm);
a11e144e 2418
7754ae79 2419 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2420 if (ret)
a11e144e 2421 goto out_quota_failed;
8ca151b5 2422
5023d966 2423 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2424 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2425 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2426
29a90a49
EP
2427 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2428
8e484f0b 2429 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2430
f697267f
AN
2431 /* we don't support TDLS during DCM */
2432 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2433 iwl_mvm_teardown_tdls_peers(mvm);
2434
939e4904 2435 goto out_unlock;
8ca151b5 2436
a11e144e 2437out_quota_failed:
999609f1 2438 iwl_mvm_power_update_mac(mvm);
5691e218 2439 mvmvif->ap_ibss_active = false;
013290aa 2440 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26 2441 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB
2442out_unbind:
2443 iwl_mvm_binding_remove_vif(mvm, vif);
2444out_remove:
2445 iwl_mvm_mac_ctxt_remove(mvm, vif);
2446out_unlock:
2447 mutex_unlock(&mvm->mutex);
576eeee9 2448 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB
2449 return ret;
2450}
2451
5023d966
JB
2452static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2453 struct ieee80211_vif *vif)
8ca151b5
JB
2454{
2455 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2456 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2457
38a12b5b
JB
2458 iwl_mvm_prepare_mac_removal(mvm, vif);
2459
8ca151b5
JB
2460 mutex_lock(&mvm->mutex);
2461
664322fa 2462 /* Handle AP stop while in CSA */
7f0a7c67
AO
2463 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2464 iwl_mvm_remove_time_event(mvm, mvmvif,
2465 &mvmvif->time_event_data);
664322fa 2466 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2467 mvmvif->csa_countdown = false;
7f0a7c67 2468 }
664322fa 2469
003e5236
AO
2470 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2471 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2472 mvm->csa_tx_block_bcn_timeout = 0;
2473 }
2474
5023d966 2475 mvmvif->ap_ibss_active = false;
1c87bbad 2476 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2477
47242744
TM
2478 if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2479 iwl_mvm_vif_set_low_latency(mvmvif, false,
2480 LOW_LATENCY_VIF_TYPE);
2481 iwl_mvm_send_low_latency_cmd(mvm, false, mvmvif->id);
2482 }
2483
8e484f0b 2484 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2485
29a90a49
EP
2486 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2487
5023d966 2488 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2489 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2490 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2491
7754ae79 2492 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS
2493
2494 /*
2495 * This is not very nice, but the simplest:
2496 * For older FWs removing the mcast sta before the bcast station may
2497 * cause assert 0x2b00.
2498 * This is fixed in later FW (which will stop beaconing when removing
2499 * bcast station).
2500 * So make the order of removal depend on the TLV
2501 */
2502 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2503 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2504 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS
2505 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2506 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2507 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2508
999609f1 2509 iwl_mvm_power_update_mac(mvm);
a11e144e 2510
8ca151b5
JB
2511 iwl_mvm_mac_ctxt_remove(mvm, vif);
2512
337bfc98
AS
2513 kfree(mvmvif->ap_wep_key);
2514 mvmvif->ap_wep_key = NULL;
2515
8ca151b5
JB
2516 mutex_unlock(&mvm->mutex);
2517}
2518
5023d966
JB
2519static void
2520iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2521 struct ieee80211_vif *vif,
2522 struct ieee80211_bss_conf *bss_conf,
2523 u32 changes)
8ca151b5 2524{
be2056fc 2525 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2526
be2056fc
IP
2527 /* Changes will be applied when the AP/IBSS is started */
2528 if (!mvmvif->ap_ibss_active)
2529 return;
2530
863230da 2531 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2532 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2533 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2534 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2535
8ca151b5 2536 /* Need to send a new beacon template to the FW */
863230da
JB
2537 if (changes & BSS_CHANGED_BEACON &&
2538 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2539 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD
2540
2541 if (changes & BSS_CHANGED_TXPOWER) {
2542 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2543 bss_conf->txpower);
2544 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2545 }
8ca151b5
JB
2546}
2547
2548static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2549 struct ieee80211_vif *vif,
2550 struct ieee80211_bss_conf *bss_conf,
2551 u32 changes)
2552{
2553 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2554
576eeee9
EP
2555 /*
2556 * iwl_mvm_bss_info_changed_station() might call
2557 * iwl_mvm_protect_session(), which reads directly from
2558 * the device (the system time), so make sure it is available.
2559 */
2560 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2561 return;
2562
8ca151b5
JB
2563 mutex_lock(&mvm->mutex);
2564
723f02ed 2565 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2566 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2567
8ca151b5
JB
2568 switch (vif->type) {
2569 case NL80211_IFTYPE_STATION:
2570 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2571 break;
2572 case NL80211_IFTYPE_AP:
5023d966
JB
2573 case NL80211_IFTYPE_ADHOC:
2574 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2575 break;
91b08c2d
AE
2576 case NL80211_IFTYPE_MONITOR:
2577 if (changes & BSS_CHANGED_MU_GROUPS)
2578 iwl_mvm_update_mu_groups(mvm, vif);
2579 break;
8ca151b5
JB
2580 default:
2581 /* shouldn't happen */
2582 WARN_ON_ONCE(1);
2583 }
2584
2585 mutex_unlock(&mvm->mutex);
576eeee9 2586 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB
2587}
2588
2589static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2590 struct ieee80211_vif *vif,
c56ef672 2591 struct ieee80211_scan_request *hw_req)
8ca151b5
JB
2592{
2593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2594 int ret;
2595
6749dd80
LC
2596 if (hw_req->req.n_channels == 0 ||
2597 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB
2598 return -EINVAL;
2599
2600 mutex_lock(&mvm->mutex);
6749dd80 2601 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2602 mutex_unlock(&mvm->mutex);
6749dd80 2603
8ca151b5
JB
2604 return ret;
2605}
2606
2607static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2608 struct ieee80211_vif *vif)
2609{
2610 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2611
2612 mutex_lock(&mvm->mutex);
2613
e7d3abab
LC
2614 /* Due to a race condition, it's possible that mac80211 asks
2615 * us to stop a hw_scan when it's already stopped. This can
2616 * happen, for instance, if we stopped the scan ourselves,
2617 * called ieee80211_scan_completed() and the userspace called
2618 * cancel scan scan before ieee80211_scan_work() could run.
2619 * To handle that, simply return if the scan is not running.
2620 */
262888fc 2621 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2622 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB
2623
2624 mutex_unlock(&mvm->mutex);
2625}
2626
2627static void
2628iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2629 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB
2630 int num_frames,
2631 enum ieee80211_frame_release_type reason,
2632 bool more_data)
2633{
2634 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2635
3e56eadf 2636 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2637
3e56eadf
JB
2638 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2639 tids, more_data, false);
2640}
2641
2642static void
2643iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2644 struct ieee80211_sta *sta, u16 tids,
2645 int num_frames,
2646 enum ieee80211_frame_release_type reason,
2647 bool more_data)
2648{
2649 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2650
9a3fcf91 2651 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB
2652
2653 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2654 tids, more_data, true);
8ca151b5
JB
2655}
2656
65e25482
JB
2657static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2658 enum sta_notify_cmd cmd,
2659 struct ieee80211_sta *sta)
8ca151b5
JB
2660{
2661 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2662 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2663 unsigned long txqs = 0, tids = 0;
3e56eadf 2664 int tid;
8ca151b5 2665
960f864b
JB
2666 /*
2667 * If we have TVQM then we get too high queue numbers - luckily
2668 * we really shouldn't get here with that because such hardware
2669 * should have firmware supporting buffer station offload.
2670 */
2671 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2672 return;
2673
c22b0ff5
EG
2674 spin_lock_bh(&mvmsta->lock);
2675 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2676 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2677
6862fcee 2678 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS
2679 continue;
2680
c22b0ff5
EG
2681 __set_bit(tid_data->txq_id, &txqs);
2682
dd32162d 2683 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG
2684 continue;
2685
2686 __set_bit(tid, &tids);
2687 }
2688
8ca151b5
JB
2689 switch (cmd) {
2690 case STA_NOTIFY_SLEEP:
c22b0ff5 2691 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2692 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG
2693
2694 if (txqs)
2695 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB
2696 /*
2697 * The fw updates the STA to be asleep. Tx packets on the Tx
2698 * queues to this station will not be transmitted. The fw will
2699 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2700 */
2701 break;
2702 case STA_NOTIFY_AWAKE:
0ae98812 2703 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2704 break;
c22b0ff5
EG
2705
2706 if (txqs)
2707 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2708 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB
2709 break;
2710 default:
2711 break;
2712 }
c22b0ff5 2713 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB
2714}
2715
65e25482
JB
2716static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2717 struct ieee80211_vif *vif,
2718 enum sta_notify_cmd cmd,
2719 struct ieee80211_sta *sta)
2720{
2721 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2722}
2723
2724void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2725{
2726 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2727 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2728 struct ieee80211_sta *sta;
2729 struct iwl_mvm_sta *mvmsta;
2730 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2731
2732 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2733 return;
2734
2735 rcu_read_lock();
a9560029 2736 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB
2737 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2738 rcu_read_unlock();
2739 return;
2740 }
2741
2742 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2743
2744 if (!mvmsta->vif ||
2745 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2746 rcu_read_unlock();
2747 return;
2748 }
2749
2750 if (mvmsta->sleeping != sleeping) {
2751 mvmsta->sleeping = sleeping;
2752 __iwl_mvm_mac_sta_notify(mvm->hw,
2753 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2754 sta);
2755 ieee80211_sta_ps_transition(sta, sleeping);
2756 }
2757
2758 if (sleeping) {
2759 switch (notif->type) {
2760 case IWL_MVM_PM_EVENT_AWAKE:
2761 case IWL_MVM_PM_EVENT_ASLEEP:
2762 break;
2763 case IWL_MVM_PM_EVENT_UAPSD:
2764 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2765 break;
2766 case IWL_MVM_PM_EVENT_PS_POLL:
2767 ieee80211_sta_pspoll(sta);
2768 break;
2769 default:
2770 break;
2771 }
2772 }
2773
2774 rcu_read_unlock();
2775}
2776
1ddbbb0c
JB
2777static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2778 struct ieee80211_vif *vif,
2779 struct ieee80211_sta *sta)
2780{
2781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2782 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB
2783
2784 /*
2785 * This is called before mac80211 does RCU synchronisation,
2786 * so here we already invalidate our internal RCU-protected
2787 * station pointer. The rest of the code will thus no longer
2788 * be able to find the station this way, and we don't rely
2789 * on further RCU synchronisation after the sta_state()
2790 * callback deleted the station.
2791 */
2792 mutex_lock(&mvm->mutex);
2793 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2794 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2795 ERR_PTR(-ENOENT));
94939080 2796
1ddbbb0c
JB
2797 mutex_unlock(&mvm->mutex);
2798}
2799
bd1ba664
JB
2800static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2801 const u8 *bssid)
2802{
b0ffe455
JB
2803 int i;
2804
2805 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
2806 struct iwl_mvm_tcm_mac *mdata;
2807
2808 mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
2809 ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
2810 mdata->opened_rx_ba_sessions = false;
2811 }
2812
bd1ba664
JB
2813 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2814 return;
2815
c5241b0c 2816 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA
2817 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2818 return;
2819 }
2820
11dee0b4
EG
2821 if (!vif->p2p &&
2822 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB
2823 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2824 return;
2825 }
2826
b0ffe455
JB
2827 for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
2828 if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
2829 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2830 return;
2831 }
2832 }
2833
bd1ba664
JB
2834 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2835}
2836
1e8f1329
GBA
2837static void
2838iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2839 struct ieee80211_vif *vif, u8 *peer_addr,
2840 enum nl80211_tdls_operation action)
2841{
2842 struct iwl_fw_dbg_trigger_tlv *trig;
2843 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2844
6c042d75
SS
2845 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
2846 FW_DBG_TRIGGER_TDLS);
2847 if (!trig)
1e8f1329
GBA
2848 return;
2849
1e8f1329 2850 tdls_trig = (void *)trig->data;
1e8f1329
GBA
2851
2852 if (!(tdls_trig->action_bitmap & BIT(action)))
2853 return;
2854
2855 if (tdls_trig->peer_mode &&
2856 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2857 return;
2858
7174beb6
JB
2859 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2860 "TDLS event occurred, peer %pM, action %d",
2861 peer_addr, action);
1e8f1329
GBA
2862}
2863
24afba76
LK
2864static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2865 struct iwl_mvm_sta *mvm_sta)
2866{
2867 struct iwl_mvm_tid_data *tid_data;
2868 struct sk_buff *skb;
2869 int i;
2870
2871 spin_lock_bh(&mvm_sta->lock);
2872 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2873 tid_data = &mvm_sta->tid_data[i];
7e39a00d
AS
2874
2875 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2876 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2877
2878 /*
2879 * The first deferred frame should've stopped the MAC
2880 * queues, so we should never get a second deferred
2881 * frame for the RA/TID.
2882 */
8458e48a 2883 iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
24afba76 2884 ieee80211_free_txskb(mvm->hw, skb);
7e39a00d 2885 }
24afba76
LK
2886 }
2887 spin_unlock_bh(&mvm_sta->lock);
2888}
2889
8ca151b5
JB
2890static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2891 struct ieee80211_vif *vif,
2892 struct ieee80211_sta *sta,
2893 enum ieee80211_sta_state old_state,
2894 enum ieee80211_sta_state new_state)
2895{
2896 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2897 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2898 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB
2899 int ret;
2900
2901 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2902 sta->addr, old_state, new_state);
2903
2904 /* this would be a mac80211 bug ... but don't crash */
2905 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2906 return -EINVAL;
2907
24afba76
LK
2908 /*
2909 * If we are in a STA removal flow and in DQA mode:
2910 *
2911 * This is after the sync_rcu part, so the queues have already been
2912 * flushed. No more TXs on their way in mac80211's path, and no more in
2913 * the queues.
2914 * Also, we won't be getting any new TX frames for this station.
2915 * What we might have are deferred TX frames that need to be taken care
2916 * of.
2917 *
2918 * Drop any still-queued deferred-frame before removing the STA, and
2919 * make sure the worker is no longer handling frames for this STA.
2920 */
2921 if (old_state == IEEE80211_STA_NONE &&
c8f54701 2922 new_state == IEEE80211_STA_NOTEXIST) {
24afba76
LK
2923 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2924 flush_work(&mvm->add_stream_wk);
2925
2926 /*
2927 * No need to make sure deferred TX indication is off since the
2928 * worker will already remove it if it was on
2929 */
2930 }
2931
8ca151b5 2932 mutex_lock(&mvm->mutex);
6ea29ce5 2933 /* track whether or not the station is associated */
d94c5a82 2934 mvm_sta->sta_state = new_state;
6ea29ce5 2935
8ca151b5
JB
2936 if (old_state == IEEE80211_STA_NOTEXIST &&
2937 new_state == IEEE80211_STA_NONE) {
48bc1307
JB
2938 /*
2939 * Firmware bug - it'll crash if the beacon interval is less
2940 * than 16. We can't avoid connecting at all, so refuse the
2941 * station state change, this will cause mac80211 to abandon
2942 * attempts to connect to this AP, and eventually wpa_s will
2943 * blacklist the AP...
2944 */
2945 if (vif->type == NL80211_IFTYPE_STATION &&
2946 vif->bss_conf.beacon_int < 16) {
2947 IWL_ERR(mvm,
2948 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2949 sta->addr, vif->bss_conf.beacon_int);
2950 ret = -EINVAL;
2951 goto out_unlock;
2952 }
cf7b491d
AN
2953
2954 if (sta->tdls &&
2955 (vif->p2p ||
fa3d07e4
AN
2956 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2957 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN
2958 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2959 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2960 ret = -EBUSY;
2961 goto out_unlock;
2962 }
2963
8ca151b5 2964 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2965 if (sta->tdls && ret == 0) {
fa3d07e4 2966 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA
2967 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2968 NL80211_TDLS_SETUP);
2969 }
8ca151b5
JB
2970 } else if (old_state == IEEE80211_STA_NONE &&
2971 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD
2972 /*
2973 * EBS may be disabled due to previous failures reported by FW.
2974 * Reset EBS status here assuming environment has been changed.
2975 */
2976 mvm->last_ebs_successful = true;
bd1ba664 2977 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB
2978 ret = 0;
2979 } else if (old_state == IEEE80211_STA_AUTH &&
2980 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB
2981 if (vif->type == NL80211_IFTYPE_AP) {
2982 mvmvif->ap_assoc_sta_count++;
2983 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
02221a81
ST
2984 if (vif->bss_conf.he_support &&
2985 !iwlwifi_mod_params.disable_11ax)
2986 iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id);
8be30c13 2987 }
735a0045 2988
3baf7528
AS
2989 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2990 false);
7a453973 2991 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB
2992 } else if (old_state == IEEE80211_STA_ASSOC &&
2993 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN
2994
2995 /* we don't support TDLS during DCM */
2996 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2997 iwl_mvm_teardown_tdls_peers(mvm);
2998
1e8f1329
GBA
2999 if (sta->tdls)
3000 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3001 NL80211_TDLS_ENABLE_LINK);
3002
7df15b1e 3003 /* enable beacon filtering */
fa7b2e7f 3004 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
6b7a5aea 3005
3baf7528
AS
3006 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3007 true);
6b7a5aea 3008
337bfc98
AS
3009 /* if wep is used, need to set the key for the station now */
3010 if (vif->type == NL80211_IFTYPE_AP && mvmvif->ap_wep_key)
3011 ret = iwl_mvm_set_sta_key(mvm, vif, sta,
3012 mvmvif->ap_wep_key,
3013 STA_KEY_IDX_INVALID);
3014 else
3015 ret = 0;
8ca151b5
JB
3016 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
3017 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 3018 /* disable beacon filtering */
a1022927 3019 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB
3020 ret = 0;
3021 } else if (old_state == IEEE80211_STA_ASSOC &&
3022 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB
3023 if (vif->type == NL80211_IFTYPE_AP) {
3024 mvmvif->ap_assoc_sta_count--;
3025 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3026 }
8ca151b5
JB
3027 ret = 0;
3028 } else if (old_state == IEEE80211_STA_AUTH &&
3029 new_state == IEEE80211_STA_NONE) {
3030 ret = 0;
3031 } else if (old_state == IEEE80211_STA_NONE &&
3032 new_state == IEEE80211_STA_NOTEXIST) {
3033 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 3034 if (sta->tdls) {
fa3d07e4 3035 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA
3036 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3037 NL80211_TDLS_DISABLE_LINK);
3038 }
8ca151b5
JB
3039 } else {
3040 ret = -EIO;
3041 }
48bc1307 3042 out_unlock:
8ca151b5
JB
3043 mutex_unlock(&mvm->mutex);
3044
9c126cd6
LK
3045 if (sta->tdls && ret == 0) {
3046 if (old_state == IEEE80211_STA_NOTEXIST &&
3047 new_state == IEEE80211_STA_NONE)
3048 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3049 else if (old_state == IEEE80211_STA_NONE &&
3050 new_state == IEEE80211_STA_NOTEXIST)
3051 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3052 }
3053
8ca151b5
JB
3054 return ret;
3055}
3056
3057static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3058{
3059 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3060
3061 mvm->rts_threshold = value;
3062
3063 return 0;
3064}
3065
1f3b0ff8
LE
3066static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
3067 struct ieee80211_vif *vif,
3068 struct ieee80211_sta *sta, u32 changed)
3069{
3070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3071
3072 if (vif->type == NL80211_IFTYPE_STATION &&
3073 changed & IEEE80211_RC_NSS_CHANGED)
3074 iwl_mvm_sf_update(mvm, vif, false);
3075}
3076
8ca151b5
JB
3077static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
3078 struct ieee80211_vif *vif, u16 ac,
3079 const struct ieee80211_tx_queue_params *params)
3080{
3081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3082 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3083
3084 mvmvif->queue_params[ac] = *params;
3085
3086 /*
3087 * No need to update right away, we'll get BSS_CHANGED_QOS
3088 * The exception is P2P_DEVICE interface which needs immediate update.
3089 */
3090 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
3091 int ret;
3092
3093 mutex_lock(&mvm->mutex);
3dfd3a97 3094 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB
3095 mutex_unlock(&mvm->mutex);
3096 return ret;
3097 }
3098 return 0;
3099}
3100
3101static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
d4e36e55
IP
3102 struct ieee80211_vif *vif,
3103 u16 req_duration)
8ca151b5
JB
3104{
3105 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS
3106 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
3107 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5 3108
576eeee9
EP
3109 /*
3110 * iwl_mvm_protect_session() reads directly from the device
3111 * (the system time), so make sure it is available.
3112 */
3113 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
3114 return;
3115
d4e36e55
IP
3116 if (req_duration > duration)
3117 duration = req_duration;
3118
8ca151b5
JB
3119 mutex_lock(&mvm->mutex);
3120 /* Try really hard to protect the session and hear a beacon */
d20d37bc 3121 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 3122 mutex_unlock(&mvm->mutex);
576eeee9
EP
3123
3124 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB
3125}
3126
35a000b7
DS
3127static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
3128 struct ieee80211_vif *vif,
3129 struct cfg80211_sched_scan_request *req,
633e2713 3130 struct ieee80211_scan_ies *ies)
35a000b7
DS
3131{
3132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 3133
35a000b7 3134 int ret;
4660dfbb 3135
35a000b7
DS
3136 mutex_lock(&mvm->mutex);
3137
1f940386 3138 if (!vif->bss_conf.idle) {
bd5e4744
DS
3139 ret = -EBUSY;
3140 goto out;
3141 }
3142
19945dfb 3143 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 3144
35a000b7
DS
3145out:
3146 mutex_unlock(&mvm->mutex);
3147 return ret;
3148}
3149
37e3308c
JB
3150static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
3151 struct ieee80211_vif *vif)
35a000b7
DS
3152{
3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 3154 int ret;
35a000b7
DS
3155
3156 mutex_lock(&mvm->mutex);
e7d3abab
LC
3157
3158 /* Due to a race condition, it's possible that mac80211 asks
3159 * us to stop a sched_scan when it's already stopped. This
3160 * can happen, for instance, if we stopped the scan ourselves,
3161 * called ieee80211_sched_scan_stopped() and the userspace called
3162 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
3163 * could run. To handle this, simply return if the scan is
3164 * not running.
3165 */
262888fc 3166 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC
3167 mutex_unlock(&mvm->mutex);
3168 return 0;
3169 }
3170
c7d42480 3171 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 3172 mutex_unlock(&mvm->mutex);
33ea27f6 3173 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 3174
33ea27f6 3175 return ret;
35a000b7
DS
3176}
3177
8ca151b5
JB
3178static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3179 enum set_key_cmd cmd,
3180 struct ieee80211_vif *vif,
3181 struct ieee80211_sta *sta,
3182 struct ieee80211_key_conf *key)
3183{
3184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB
3185 struct iwl_mvm_sta *mvmsta;
3186 struct iwl_mvm_key_pn *ptk_pn;
3187 int keyidx = key->keyidx;
8ca151b5 3188 int ret;
d6ee54a9 3189 u8 key_offset;
8ca151b5 3190
3b37f4c9 3191 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB
3192 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
3193 return -EOPNOTSUPP;
3194 }
3195
3196 switch (key->cipher) {
3197 case WLAN_CIPHER_SUITE_TKIP:
7f768ad5
DS
3198 if (!mvm->trans->cfg->gen2) {
3199 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
3200 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3201 } else if (vif->type == NL80211_IFTYPE_STATION) {
3202 key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
3203 } else {
3204 IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
3205 return -EOPNOTSUPP;
3206 }
8ca151b5 3207 break;
ca8c0f4b 3208 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB
3209 case WLAN_CIPHER_SUITE_GCMP:
3210 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS
3211 if (!iwl_mvm_has_new_tx_api(mvm))
3212 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 3213 break;
8ca151b5 3214 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB
3215 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3216 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 3217 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB
3218 break;
3219 case WLAN_CIPHER_SUITE_WEP40:
3220 case WLAN_CIPHER_SUITE_WEP104:
337bfc98
AS
3221 if (vif->type == NL80211_IFTYPE_AP) {
3222 struct iwl_mvm_vif *mvmvif =
3223 iwl_mvm_vif_from_mac80211(vif);
3224
3225 mvmvif->ap_wep_key = kmemdup(key,
3226 sizeof(*key) + key->keylen,
3227 GFP_KERNEL);
3228 if (!mvmvif->ap_wep_key)
3229 return -ENOMEM;
3230 }
3231
ba3943b0
JB
3232 if (vif->type != NL80211_IFTYPE_STATION)
3233 return 0;
3234 break;
8ca151b5 3235 default:
e36e5433
MS
3236 /* currently FW supports only one optional cipher scheme */
3237 if (hw->n_cipher_schemes &&
3238 hw->cipher_schemes->cipher == key->cipher)
3239 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3240 else
3241 return -EOPNOTSUPP;
8ca151b5
JB
3242 }
3243
3244 mutex_lock(&mvm->mutex);
3245
3246 switch (cmd) {
3247 case SET_KEY:
5023d966
JB
3248 if ((vif->type == NL80211_IFTYPE_ADHOC ||
3249 vif->type == NL80211_IFTYPE_AP) && !sta) {
3250 /*
3251 * GTK on AP interface is a TX-only key, return 0;
3252 * on IBSS they're per-station and because we're lazy
3253 * we don't support them for RX, so do the same.
8e160ab8 3254 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 3255 */
8e160ab8
AB
3256 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
3257 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3258 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB
3259 ret = -EOPNOTSUPP;
3260 else
3261 ret = 0;
85aeb58c
DS
3262
3263 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
3264 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
3265 !iwl_mvm_has_new_tx_api(mvm)) {
3266 key->hw_key_idx = STA_KEY_IDX_INVALID;
3267 break;
3268 }
6caffd4f
JB
3269 }
3270
b546dcd6
JB
3271 /* During FW restart, in order to restore the state as it was,
3272 * don't try to reprogram keys we previously failed for.
3273 */
3274 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3275 key->hw_key_idx == STA_KEY_IDX_INVALID) {
3276 IWL_DEBUG_MAC80211(mvm,
3277 "skip invalid idx key programming during restart\n");
3278 ret = 0;
3279 break;
3280 }
3281
f5e28eac
JB
3282 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3283 sta && iwl_mvm_has_new_rx_api(mvm) &&
3284 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3285 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB
3286 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3287 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB
3288 struct ieee80211_key_seq seq;
3289 int tid, q;
3290
3291 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3292 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
acafe7e3
KC
3293 ptk_pn = kzalloc(struct_size(ptk_pn, q,
3294 mvm->trans->num_rx_queues),
f5e28eac
JB
3295 GFP_KERNEL);
3296 if (!ptk_pn) {
3297 ret = -ENOMEM;
3298 break;
3299 }
3300
3301 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
3302 ieee80211_get_key_rx_seq(key, tid, &seq);
3303 for (q = 0; q < mvm->trans->num_rx_queues; q++)
3304 memcpy(ptk_pn->q[q].pn[tid],
3305 seq.ccmp.pn,
3306 IEEE80211_CCMP_PN_LEN);
3307 }
3308
3309 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
3310 }
3311
d6ee54a9
LC
3312 /* in HW restart reuse the index, otherwise request a new one */
3313 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3314 key_offset = key->hw_key_idx;
3315 else
3316 key_offset = STA_KEY_IDX_INVALID;
3317
8ca151b5 3318 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 3319 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB
3320 if (ret) {
3321 IWL_WARN(mvm, "set key failed\n");
3322 /*
3323 * can't add key for RX, but we don't need it
3324 * in the device for TX so still return 0
3325 */
6caffd4f 3326 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB
3327 ret = 0;
3328 }
3329
3330 break;
3331 case DISABLE_KEY:
6caffd4f
JB
3332 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3333 ret = 0;
3334 break;
3335 }
3336
f5e28eac
JB
3337 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3338 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3339 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB
3340 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3341 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB
3342 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3343 ptk_pn = rcu_dereference_protected(
3344 mvmsta->ptk_pn[keyidx],
3345 lockdep_is_held(&mvm->mutex));
3346 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3347 if (ptk_pn)
3348 kfree_rcu(ptk_pn, rcu_head);
3349 }
3350
8ca151b5
JB
3351 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3352 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3353 break;
3354 default:
3355 ret = -EINVAL;
3356 }
3357
3358 mutex_unlock(&mvm->mutex);
3359 return ret;
3360}
3361
3362static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3363 struct ieee80211_vif *vif,
3364 struct ieee80211_key_conf *keyconf,
3365 struct ieee80211_sta *sta,
3366 u32 iv32, u16 *phase1key)
3367{
3368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3369
5023d966
JB
3370 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3371 return;
3372
8ca151b5
JB
3373 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3374}
3375
3376
b112889c
AM
3377static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3378 struct iwl_rx_packet *pkt, void *data)
3379{
3380 struct iwl_mvm *mvm =
3381 container_of(notif_wait, struct iwl_mvm, notif_wait);
3382 struct iwl_hs20_roc_res *resp;
3383 int resp_len = iwl_rx_packet_payload_len(pkt);
3384 struct iwl_mvm_time_event_data *te_data = data;
3385
3386 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3387 return true;
3388
3389 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3390 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3391 return true;
3392 }
3393
3394 resp = (void *)pkt->data;
3395
3396 IWL_DEBUG_TE(mvm,
3397 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3398 resp->status, resp->event_unique_id);
3399
3400 te_data->uid = le32_to_cpu(resp->event_unique_id);
3401 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3402 te_data->uid);
3403
3404 spin_lock_bh(&mvm->time_event_lock);
3405 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3406 spin_unlock_bh(&mvm->time_event_lock);
3407
3408 return true;
3409}
3410
dc28e12f
MG
3411#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3412#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3413#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3414#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3415#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM
3416static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3417 struct ieee80211_channel *channel,
3418 struct ieee80211_vif *vif,
3419 int duration)
3420{
3421 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3422 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3423 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3424 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3425 struct iwl_notification_wait wait_time_event;
dc28e12f
MG
3426 u32 dtim_interval = vif->bss_conf.dtim_period *
3427 vif->bss_conf.beacon_int;
3428 u32 req_dur, delay;
b112889c
AM
3429 struct iwl_hs20_roc_req aux_roc_req = {
3430 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3431 .id_and_color =
3432 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3433 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3434 /* Set the channel info data */
57fbcce3 3435 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM
3436 PHY_BAND_24 : PHY_BAND_5,
3437 .channel_info.channel = channel->hw_value,
3438 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3439 /* Set the time and duration */
3440 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM
3441 };
3442
dc28e12f
MG
3443 delay = AUX_ROC_MIN_DELAY;
3444 req_dur = MSEC_TO_TU(duration);
3445
3446 /*
3447 * If we are associated we want the delay time to be at least one
3448 * dtim interval so that the FW can wait until after the DTIM and
3449 * then start the time event, this will potentially allow us to
3450 * remain off-channel for the max duration.
3451 * Since we want to use almost a whole dtim interval we would also
3452 * like the delay to be for 2-3 dtim intervals, in case there are
3453 * other time events with higher priority.
3454 */
3455 if (vif->bss_conf.assoc) {
3456 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3457 /* We cannot remain off-channel longer than the DTIM interval */
3458 if (dtim_interval <= req_dur) {
3459 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3460 if (req_dur <= AUX_ROC_MIN_DURATION)
3461 req_dur = dtim_interval -
3462 AUX_ROC_MIN_SAFETY_BUFFER;
3463 }
3464 }
3465
3466 aux_roc_req.duration = cpu_to_le32(req_dur);
3467 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3468
3469 IWL_DEBUG_TE(mvm,
3470 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3471 channel->hw_value, req_dur, duration, delay,
3472 dtim_interval);
b112889c
AM
3473 /* Set the node address */
3474 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3475
a6cc5163
MG
3476 lockdep_assert_held(&mvm->mutex);
3477
3478 spin_lock_bh(&mvm->time_event_lock);
3479
3480 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3481 spin_unlock_bh(&mvm->time_event_lock);
3482 return -EIO;
3483 }
3484
b112889c
AM
3485 te_data->vif = vif;
3486 te_data->duration = duration;
3487 te_data->id = HOT_SPOT_CMD;
3488
b112889c
AM
3489 spin_unlock_bh(&mvm->time_event_lock);
3490
3491 /*
3492 * Use a notification wait, which really just processes the
3493 * command response and doesn't wait for anything, in order
3494 * to be able to process the response and get the UID inside
3495 * the RX path. Using CMD_WANT_SKB doesn't work because it
3496 * stores the buffer and then wakes up this thread, by which
3497 * time another notification (that the time event started)
3498 * might already be processed unsuccessfully.
3499 */
3500 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3501 time_event_response,
3502 ARRAY_SIZE(time_event_response),
3503 iwl_mvm_rx_aux_roc, te_data);
3504
3505 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3506 &aux_roc_req);
3507
3508 if (res) {
3509 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3510 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3511 goto out_clear_te;
3512 }
3513
3514 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3515 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3516 /* should never fail */
3517 WARN_ON_ONCE(res);
3518
3519 if (res) {
3520 out_clear_te:
3521 spin_lock_bh(&mvm->time_event_lock);
3522 iwl_mvm_te_clear_data(mvm, te_data);
3523 spin_unlock_bh(&mvm->time_event_lock);
3524 }
3525
3526 return res;
3527}
3528
8ca151b5
JB
3529static int iwl_mvm_roc(struct ieee80211_hw *hw,
3530 struct ieee80211_vif *vif,
3531 struct ieee80211_channel *channel,
d339d5ca
IP
3532 int duration,
3533 enum ieee80211_roc_type type)
8ca151b5
JB
3534{
3535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3536 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3537 struct cfg80211_chan_def chandef;
31d385ae
IP
3538 struct iwl_mvm_phy_ctxt *phy_ctxt;
3539 int ret, i;
3540
3541 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3542 duration, type);
8ca151b5 3543
9834781c
JB
3544 /*
3545 * Flush the done work, just in case it's still pending, so that
3546 * the work it does can complete and we can accept new frames.
3547 */
6ed13164
MG
3548 flush_work(&mvm->roc_done_wk);
3549
a6cc5163
MG
3550 mutex_lock(&mvm->mutex);
3551
b112889c
AM
3552 switch (vif->type) {
3553 case NL80211_IFTYPE_STATION:
859d914c
JB
3554 if (fw_has_capa(&mvm->fw->ucode_capa,
3555 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC
3556 /* Use aux roc framework (HS20) */
3557 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3558 vif, duration);
3559 goto out_unlock;
3560 }
3561 IWL_ERR(mvm, "hotspot not supported\n");
3562 ret = -EINVAL;
a6cc5163 3563 goto out_unlock;
b112889c
AM
3564 case NL80211_IFTYPE_P2P_DEVICE:
3565 /* handle below */
3566 break;
3567 default:
3568 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG
3569 ret = -EINVAL;
3570 goto out_unlock;
8ca151b5
JB
3571 }
3572
31d385ae
IP
3573 for (i = 0; i < NUM_PHY_CTX; i++) {
3574 phy_ctxt = &mvm->phy_ctxts[i];
3575 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3576 continue;
3577
3578 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3579 /*
3580 * Unbind the P2P_DEVICE from the current PHY context,
3581 * and if the PHY context is not used remove it.
3582 */
3583 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3584 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3585 goto out_unlock;
3586
3587 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3588
3589 /* Bind the P2P_DEVICE to the current PHY Context */
3590 mvmvif->phy_ctxt = phy_ctxt;
3591
3592 ret = iwl_mvm_binding_add_vif(mvm, vif);
3593 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3594 goto out_unlock;
3595
3596 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3597 goto schedule_time_event;
3598 }
3599 }
3600
3601 /* Need to update the PHY context only if the ROC channel changed */
3602 if (channel == mvmvif->phy_ctxt->channel)
3603 goto schedule_time_event;
3604
8ca151b5 3605 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3606
31d385ae
IP
3607 /*
3608 * Change the PHY context configuration as it is currently referenced
3609 * only by the P2P Device MAC
3610 */
3611 if (mvmvif->phy_ctxt->ref == 1) {
3612 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3613 &chandef, 1, 1);
3614 if (ret)
3615 goto out_unlock;
3616 } else {
3617 /*
3618 * The PHY context is shared with other MACs. Need to remove the
3619 * P2P Device from the binding, allocate an new PHY context and
3620 * create a new binding
3621 */
3622 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3623 if (!phy_ctxt) {
3624 ret = -ENOSPC;
3625 goto out_unlock;
3626 }
3627
3628 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3629 1, 1);
3630 if (ret) {
3631 IWL_ERR(mvm, "Failed to change PHY context\n");
3632 goto out_unlock;
3633 }
3634
3635 /* Unbind the P2P_DEVICE from the current PHY context */
3636 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3637 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3638 goto out_unlock;
3639
3640 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3641
3642 /* Bind the P2P_DEVICE to the new allocated PHY context */
3643 mvmvif->phy_ctxt = phy_ctxt;
3644
3645 ret = iwl_mvm_binding_add_vif(mvm, vif);
3646 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3647 goto out_unlock;
3648
3649 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3650 }
3651
3652schedule_time_event:
8ca151b5 3653 /* Schedule the time events */
e635c797 3654 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3655
31d385ae 3656out_unlock:
8ca151b5
JB
3657 mutex_unlock(&mvm->mutex);
3658 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB
3659 return ret;
3660}
3661
3662static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3663{
3664 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3665
3666 IWL_DEBUG_MAC80211(mvm, "enter\n");
3667
3668 mutex_lock(&mvm->mutex);
bf5da87f 3669 iwl_mvm_stop_roc(mvm);
8ca151b5
JB
3670 mutex_unlock(&mvm->mutex);
3671
3672 IWL_DEBUG_MAC80211(mvm, "leave\n");
3673 return 0;
3674}
3675
b08c1d97
LC
3676static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3677 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3678{
fe0f2de3
IP
3679 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3680 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB
3681 int ret;
3682
b08c1d97
LC
3683 lockdep_assert_held(&mvm->mutex);
3684
53a9d61e 3685 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3686
fe0f2de3
IP
3687 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3688 if (!phy_ctxt) {
3689 ret = -ENOSPC;
3690 goto out;
3691 }
8ca151b5 3692
dcbc3e1a 3693 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP
3694 ctx->rx_chains_static,
3695 ctx->rx_chains_dynamic);
fe0f2de3
IP
3696 if (ret) {
3697 IWL_ERR(mvm, "Failed to add PHY context\n");
3698 goto out;
3699 }
3700
53a9d61e 3701 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP
3702 *phy_ctxt_id = phy_ctxt->id;
3703out:
b08c1d97
LC
3704 return ret;
3705}
3706
3707static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3708 struct ieee80211_chanctx_conf *ctx)
3709{
3710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3711 int ret;
3712
3713 mutex_lock(&mvm->mutex);
3714 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3715 mutex_unlock(&mvm->mutex);
b08c1d97 3716
8ca151b5
JB
3717 return ret;
3718}
3719
b08c1d97
LC
3720static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3721 struct ieee80211_chanctx_conf *ctx)
3722{
3723 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3724 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3725
3726 lockdep_assert_held(&mvm->mutex);
3727
3728 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3729}
3730
8ca151b5
JB
3731static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3732 struct ieee80211_chanctx_conf *ctx)
3733{
3734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB
3735
3736 mutex_lock(&mvm->mutex);
b08c1d97 3737 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB
3738 mutex_unlock(&mvm->mutex);
3739}
3740
3741static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3742 struct ieee80211_chanctx_conf *ctx,
3743 u32 changed)
3744{
3745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP
3746 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3747 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3748
31d385ae
IP
3749 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3750 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3751 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN
3752 IEEE80211_CHANCTX_CHANGE_RADAR |
3753 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP
3754 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3755 phy_ctxt->ref, changed))
3756 return;
3757
8ca151b5 3758 mutex_lock(&mvm->mutex);
7a20bcce
EG
3759
3760 /* we are only changing the min_width, may be a noop */
3761 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
3762 if (phy_ctxt->width == ctx->min_def.width)
3763 goto out_unlock;
3764
3765 /* we are just toggling between 20_NOHT and 20 */
3766 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
3767 ctx->min_def.width <= NL80211_CHAN_WIDTH_20)
3768 goto out_unlock;
3769 }
3770
4d66449a 3771 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3772 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB
3773 ctx->rx_chains_static,
3774 ctx->rx_chains_dynamic);
7a20bcce
EG
3775
3776out_unlock:
8ca151b5
JB
3777 mutex_unlock(&mvm->mutex);
3778}
3779
b08c1d97
LC
3780static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3781 struct ieee80211_vif *vif,
f0c97783
LC
3782 struct ieee80211_chanctx_conf *ctx,
3783 bool switching_chanctx)
8ca151b5 3784{
fe0f2de3
IP
3785 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3786 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB
3787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3788 int ret;
3789
b08c1d97 3790 lockdep_assert_held(&mvm->mutex);
8ca151b5 3791
fe0f2de3 3792 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB
3793
3794 switch (vif->type) {
3795 case NL80211_IFTYPE_AP:
4741dd04
LC
3796 /* only needed if we're switching chanctx (i.e. during CSA) */
3797 if (switching_chanctx) {
bd3398e2
AO
3798 mvmvif->ap_ibss_active = true;
3799 break;
3800 }
5023d966 3801 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB
3802 /*
3803 * The AP binding flow is handled as part of the start_ap flow
5023d966 3804 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB
3805 */
3806 ret = 0;
b08c1d97 3807 goto out;
8ca151b5 3808 case NL80211_IFTYPE_STATION:
19125cb0 3809 mvmvif->csa_bcn_pending = false;
2533edce 3810 break;
8ca151b5 3811 case NL80211_IFTYPE_MONITOR:
2533edce
LC
3812 /* always disable PS when a monitor interface is active */
3813 mvmvif->ps_disabled = true;
8ca151b5
JB
3814 break;
3815 default:
3816 ret = -EINVAL;
b08c1d97 3817 goto out;
8ca151b5
JB
3818 }
3819
3820 ret = iwl_mvm_binding_add_vif(mvm, vif);
3821 if (ret)
b08c1d97 3822 goto out;
8ca151b5
JB
3823
3824 /*
92d85562
AB
3825 * Power state must be updated before quotas,
3826 * otherwise fw will complain.
3827 */
999609f1 3828 iwl_mvm_power_update_mac(mvm);
92d85562
AB
3829
3830 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB
3831 * interfaces. For the other types, the bss_info changed flow
3832 * will handle quota settings.
3833 */
3834 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3835 mvmvif->monitor_active = true;
7754ae79 3836 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB
3837 if (ret)
3838 goto out_remove_binding;
0e39eb03
CRI
3839
3840 ret = iwl_mvm_add_snif_sta(mvm, vif);
3841 if (ret)
3842 goto out_remove_binding;
3843
8ca151b5
JB
3844 }
3845
bd3398e2 3846 /* Handle binding during CSA */
a57c688d 3847 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3848 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3849 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO
3850 }
3851
4741dd04 3852 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
19125cb0 3853 u32 duration = 3 * vif->bss_conf.beacon_int;
686e7fe1
LC
3854
3855 /* iwl_mvm_protect_session() reads directly from the
3856 * device (the system time), so make sure it is
3857 * available.
3858 */
3859 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3860 if (ret)
3861 goto out_remove_binding;
3862
3863 /* Protect the session to make sure we hear the first
3864 * beacon on the new channel.
3865 */
19125cb0 3866 mvmvif->csa_bcn_pending = true;
686e7fe1
LC
3867 iwl_mvm_protect_session(mvm, vif, duration, duration,
3868 vif->bss_conf.beacon_int / 2,
3869 true);
3870
3871 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3872
7754ae79 3873 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC
3874 }
3875
b08c1d97 3876 goto out;
8ca151b5 3877
b08c1d97 3878out_remove_binding:
8ca151b5 3879 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3880 iwl_mvm_power_update_mac(mvm);
b08c1d97 3881out:
8ca151b5
JB
3882 if (ret)
3883 mvmvif->phy_ctxt = NULL;
3884 return ret;
3885}
b08c1d97
LC
3886static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3887 struct ieee80211_vif *vif,
3888 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB
3889{
3890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3891 int ret;
8ca151b5
JB
3892
3893 mutex_lock(&mvm->mutex);
f0c97783 3894 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC
3895 mutex_unlock(&mvm->mutex);
3896
3897 return ret;
3898}
3899
3900static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3901 struct ieee80211_vif *vif,
f0c97783
LC
3902 struct ieee80211_chanctx_conf *ctx,
3903 bool switching_chanctx)
b08c1d97
LC
3904{
3905 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3906 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC
3907
3908 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB
3909
3910 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3911
8ca151b5 3912 switch (vif->type) {
5023d966 3913 case NL80211_IFTYPE_ADHOC:
b08c1d97 3914 goto out;
8ca151b5 3915 case NL80211_IFTYPE_MONITOR:
1e1391ca 3916 mvmvif->monitor_active = false;
2533edce 3917 mvmvif->ps_disabled = false;
0e39eb03 3918 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3919 break;
bd3398e2
AO
3920 case NL80211_IFTYPE_AP:
3921 /* This part is triggered only during CSA */
4741dd04 3922 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3923 goto out;
bd3398e2 3924
7ef0aab6
AO
3925 mvmvif->csa_countdown = false;
3926
003e5236
AO
3927 /* Set CS bit on all the stations */
3928 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3929
3930 /* Save blocked iface, the timeout is set on the next beacon */
3931 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3932
bd3398e2 3933 mvmvif->ap_ibss_active = false;
f0c97783
LC
3934 break;
3935 case NL80211_IFTYPE_STATION:
3936 if (!switching_chanctx)
3937 break;
3938
3939 disabled_vif = vif;
3940
3dfd3a97 3941 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3942 break;
8ca151b5
JB
3943 default:
3944 break;
3945 }
3946
7754ae79 3947 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3948 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3949
b08c1d97 3950out:
a11e144e 3951 mvmvif->phy_ctxt = NULL;
999609f1 3952 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC
3953}
3954
3955static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3956 struct ieee80211_vif *vif,
3957 struct ieee80211_chanctx_conf *ctx)
3958{
3959 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3960
3961 mutex_lock(&mvm->mutex);
f0c97783 3962 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB
3963 mutex_unlock(&mvm->mutex);
3964}
3965
50cc9574
LC
3966static int
3967iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3968 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3969{
b08c1d97
LC
3970 int ret;
3971
b08c1d97 3972 mutex_lock(&mvm->mutex);
f0c97783 3973 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC
3974 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3975
3976 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3977 if (ret) {
3978 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3979 goto out_reassign;
3980 }
3981
f0c97783
LC
3982 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3983 true);
b08c1d97
LC
3984 if (ret) {
3985 IWL_ERR(mvm,
3986 "failed to assign new_ctx during channel switch\n");
3987 goto out_remove;
3988 }
3989
f697267f
AN
3990 /* we don't support TDLS during DCM - can be caused by channel switch */
3991 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3992 iwl_mvm_teardown_tdls_peers(mvm);
3993
b08c1d97
LC
3994 goto out;
3995
3996out_remove:
3997 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3998
3999out_reassign:
6fd1fb63 4000 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC
4001 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
4002 goto out_restart;
4003 }
4004
6fd1fb63
LC
4005 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4006 true)) {
b08c1d97
LC
4007 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4008 goto out_restart;
4009 }
4010
4011 goto out;
4012
4013out_restart:
4014 /* things keep failing, better restart the hw */
4015 iwl_mvm_nic_restart(mvm, false);
4016
4017out:
4018 mutex_unlock(&mvm->mutex);
50cc9574
LC
4019
4020 return ret;
4021}
4022
48a256e8
LC
4023static int
4024iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
4025 struct ieee80211_vif_chanctx_switch *vifs)
4026{
4027 int ret;
4028
4029 mutex_lock(&mvm->mutex);
4030 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4031
4032 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4033 true);
4034 if (ret) {
4035 IWL_ERR(mvm,
4036 "failed to assign new_ctx during channel switch\n");
4037 goto out_reassign;
4038 }
4039
4040 goto out;
4041
4042out_reassign:
4043 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4044 true)) {
4045 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4046 goto out_restart;
4047 }
4048
4049 goto out;
4050
4051out_restart:
4052 /* things keep failing, better restart the hw */
4053 iwl_mvm_nic_restart(mvm, false);
4054
4055out:
4056 mutex_unlock(&mvm->mutex);
4057
4058 return ret;
4059}
4060
50cc9574
LC
4061static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
4062 struct ieee80211_vif_chanctx_switch *vifs,
4063 int n_vifs,
4064 enum ieee80211_chanctx_switch_mode mode)
4065{
4066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4067 int ret;
4068
4069 /* we only support a single-vif right now */
4070 if (n_vifs > 1)
4071 return -EOPNOTSUPP;
4072
4073 switch (mode) {
4074 case CHANCTX_SWMODE_SWAP_CONTEXTS:
4075 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
4076 break;
4077 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 4078 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC
4079 break;
4080 default:
4081 ret = -EOPNOTSUPP;
4082 break;
4083 }
4084
b08c1d97
LC
4085 return ret;
4086}
4087
2f0282db
JB
4088static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
4089{
4090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4091
4092 return mvm->ibss_manager;
4093}
4094
8ca151b5
JB
4095static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
4096 struct ieee80211_sta *sta,
4097 bool set)
4098{
4099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 4100 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB
4101
4102 if (!mvm_sta || !mvm_sta->vif) {
4103 IWL_ERR(mvm, "Station is not associated to a vif\n");
4104 return -EINVAL;
4105 }
4106
4107 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
4108}
4109
507cadf2
DS
4110#ifdef CONFIG_NL80211_TESTMODE
4111static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
4112 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
4113 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 4114 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS
4115};
4116
4117static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
4118 struct ieee80211_vif *vif,
4119 void *data, int len)
4120{
4121 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
4122 int err;
4123 u32 noa_duration;
4124
fceb6435
JB
4125 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
4126 NULL);
507cadf2
DS
4127 if (err)
4128 return err;
4129
4130 if (!tb[IWL_MVM_TM_ATTR_CMD])
4131 return -EINVAL;
4132
4133 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
4134 case IWL_MVM_TM_CMD_SET_NOA:
4135 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
4136 !vif->bss_conf.enable_beacon ||
4137 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
4138 return -EINVAL;
4139
4140 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
4141 if (noa_duration >= vif->bss_conf.beacon_int)
4142 return -EINVAL;
4143
4144 mvm->noa_duration = noa_duration;
4145 mvm->noa_vif = vif;
4146
22b21041 4147 return iwl_mvm_update_quotas(mvm, true, NULL);
f6c6ad42
JB
4148 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
4149 /* must be associated client vif - ignore authorized */
4150 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
4151 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
4152 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
4153 return -EINVAL;
4154
4155 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG
4156 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4157 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS
4158 }
4159
4160 return -EOPNOTSUPP;
4161}
4162
4163static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
4164 struct ieee80211_vif *vif,
4165 void *data, int len)
4166{
4167 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4168 int err;
4169
4170 mutex_lock(&mvm->mutex);
4171 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
4172 mutex_unlock(&mvm->mutex);
4173
4174 return err;
4175}
4176#endif
4177
622e3f9b
LC
4178static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
4179 struct ieee80211_vif *vif,
4180 struct ieee80211_channel_switch *chsw)
4181{
4182 /* By implementing this operation, we prevent mac80211 from
4183 * starting its own channel switch timer, so that we can call
4184 * ieee80211_chswitch_done() ourselves at the right time
4185 * (which is when the absence time event starts).
4186 */
4187
4188 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
4189 "dummy channel switch op\n");
4190}
4191
f028905c
LC
4192static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
4193 struct ieee80211_vif *vif,
4194 struct ieee80211_channel_switch *chsw)
bd3398e2
AO
4195{
4196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 4197 struct ieee80211_vif *csa_vif;
f6c34820 4198 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 4199 u32 apply_time;
f028905c 4200 int ret;
bd3398e2
AO
4201
4202 mutex_lock(&mvm->mutex);
664322fa 4203
81d62d5a
JB
4204 mvmvif->csa_failed = false;
4205
6b20d774 4206 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 4207 chsw->chandef.center_freq1);
6b20d774 4208
7174beb6
JB
4209 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
4210 ieee80211_vif_to_wdev(vif),
4211 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 4212
6b20d774
LC
4213 switch (vif->type) {
4214 case NL80211_IFTYPE_AP:
4215 csa_vif =
4216 rcu_dereference_protected(mvm->csa_vif,
4217 lockdep_is_held(&mvm->mutex));
4218 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
4219 "Another CSA is already in progress")) {
4220 ret = -EBUSY;
4221 goto out_unlock;
4222 }
4223
d3a108a4
AO
4224 /* we still didn't unblock tx. prevent new CS meanwhile */
4225 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
4226 lockdep_is_held(&mvm->mutex))) {
4227 ret = -EBUSY;
4228 goto out_unlock;
4229 }
4230
6b20d774 4231 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 4232
7ef0aab6
AO
4233 if (WARN_ONCE(mvmvif->csa_countdown,
4234 "Previous CSA countdown didn't complete")) {
4235 ret = -EBUSY;
4236 goto out_unlock;
4237 }
4238
d3a108a4
AO
4239 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
4240
6b20d774 4241 break;
dc88b4ba 4242 case NL80211_IFTYPE_STATION:
4500e133
LC
4243 /* Schedule the time event to a bit before beacon 1,
4244 * to make sure we're in the new channel when the
f5d8f50f
IP
4245 * GO/AP arrives. In case count <= 1 immediately schedule the
4246 * TE (this might result with some packet loss or connection
4247 * loss).
4500e133 4248 */
f5d8f50f
IP
4249 if (chsw->count <= 1)
4250 apply_time = 0;
4251 else
4252 apply_time = chsw->device_timestamp +
4253 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
4254 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC
4255
4256 if (chsw->block_tx)
4257 iwl_mvm_csa_client_absent(mvm, vif);
4258
4500e133 4259 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 4260 apply_time);
c6e0a3e0
LC
4261 if (mvmvif->bf_data.bf_enabled) {
4262 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4263 if (ret)
4264 goto out_unlock;
4265 }
4266
dc88b4ba 4267 break;
6b20d774
LC
4268 default:
4269 break;
4270 }
bd3398e2 4271
f6c34820
LC
4272 mvmvif->ps_disabled = true;
4273
4274 ret = iwl_mvm_power_update_ps(mvm);
4275 if (ret)
4276 goto out_unlock;
f028905c 4277
e198f5e7
AN
4278 /* we won't be on this channel any longer */
4279 iwl_mvm_teardown_tdls_peers(mvm);
4280
bd3398e2
AO
4281out_unlock:
4282 mutex_unlock(&mvm->mutex);
f028905c
LC
4283
4284 return ret;
bd3398e2
AO
4285}
4286
f6c34820
LC
4287static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
4288 struct ieee80211_vif *vif)
4289{
4290 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4292 int ret;
4293
4294 mutex_lock(&mvm->mutex);
4295
81d62d5a
JB
4296 if (mvmvif->csa_failed) {
4297 mvmvif->csa_failed = false;
4298 ret = -EIO;
4299 goto out_unlock;
4300 }
4301
a57c688d
LC
4302 if (vif->type == NL80211_IFTYPE_STATION) {
4303 struct iwl_mvm_sta *mvmsta;
4304
19125cb0 4305 mvmvif->csa_bcn_pending = false;
a57c688d
LC
4306 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
4307 mvmvif->ap_sta_id);
4308
4309 if (WARN_ON(!mvmsta)) {
4310 ret = -EIO;
4311 goto out_unlock;
4312 }
4313
4314 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
4315
4316 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC
4317
4318 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4319 if (ret)
4320 goto out_unlock;
686e7fe1
LC
4321
4322 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC
4323 }
4324
f6c34820
LC
4325 mvmvif->ps_disabled = false;
4326
4327 ret = iwl_mvm_power_update_ps(mvm);
4328
a57c688d 4329out_unlock:
f6c34820
LC
4330 mutex_unlock(&mvm->mutex);
4331
4332 return ret;
4333}
4334
6110d9e5
DS
4335static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4336{
435d0827
SS
4337 int i;
4338
06195639 4339 if (!iwl_mvm_has_new_tx_api(mvm)) {
309c4848
LC
4340 if (drop) {
4341 mutex_lock(&mvm->mutex);
6110d9e5 4342 iwl_mvm_flush_tx_path(mvm,
435d0827 4343 iwl_mvm_flushable_queues(mvm) & queues, 0);
309c4848
LC
4344 mutex_unlock(&mvm->mutex);
4345 } else {
06195639 4346 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
309c4848 4347 }
435d0827
SS
4348 return;
4349 }
6110d9e5 4350
435d0827
SS
4351 mutex_lock(&mvm->mutex);
4352 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4353 struct ieee80211_sta *sta;
6110d9e5 4354
435d0827
SS
4355 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4356 lockdep_is_held(&mvm->mutex));
4357 if (IS_ERR_OR_NULL(sta))
4358 continue;
6110d9e5 4359
06195639
SS
4360 if (drop)
4361 iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0);
4362 else
4363 iwl_mvm_wait_sta_queues_empty(mvm,
4364 iwl_mvm_sta_from_mac80211(sta));
6110d9e5 4365 }
435d0827 4366 mutex_unlock(&mvm->mutex);
6110d9e5
DS
4367}
4368
c5b0e7c0
EG
4369static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4370 struct ieee80211_vif *vif, u32 queues, bool drop)
4371{
4372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4373 struct iwl_mvm_vif *mvmvif;
4374 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN
4375 struct ieee80211_sta *sta;
4376 int i;
4377 u32 msk = 0;
c5b0e7c0 4378
6110d9e5
DS
4379 if (!vif) {
4380 iwl_mvm_flush_no_vif(mvm, queues, drop);
4381 return;
4382 }
4383
4384 if (vif->type != NL80211_IFTYPE_STATION)
c5b0e7c0
EG
4385 return;
4386
24afba76 4387 /* Make sure we're done with the deferred traffic before flushing */
c8f54701 4388 flush_work(&mvm->add_stream_wk);
24afba76 4389
c5b0e7c0
EG
4390 mutex_lock(&mvm->mutex);
4391 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 4392
a0f6bf2a 4393 /* flush the AP-station and all TDLS peers */
0ae98812 4394 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN
4395 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4396 lockdep_is_held(&mvm->mutex));
4397 if (IS_ERR_OR_NULL(sta))
4398 continue;
4399
4400 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4401 if (mvmsta->vif != vif)
4402 continue;
4403
4404 /* make sure only TDLS peers or the AP are flushed */
4405 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4406
d49394a1
SS
4407 if (drop) {
4408 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4409 IWL_ERR(mvm, "flush request fail\n");
4410 } else {
4411 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS
4412 if (iwl_mvm_has_new_tx_api(mvm))
4413 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4414 }
480acbce 4415 }
c5b0e7c0 4416
d49394a1 4417 mutex_unlock(&mvm->mutex);
4e6c48e0 4418
d49394a1
SS
4419 /* this can take a while, and we may need/want other operations
4420 * to succeed while doing this, so do it without the mutex held
4421 */
d6d517b7 4422 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4423 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG
4424}
4425
91a8bcde
JB
4426static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4427 struct survey_info *survey)
4428{
4429 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4430 int ret;
4431
4432 memset(survey, 0, sizeof(*survey));
4433
4434 /* only support global statistics right now */
4435 if (idx != 0)
4436 return -ENOENT;
4437
280a3efa
JB
4438 if (!fw_has_capa(&mvm->fw->ucode_capa,
4439 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB
4440 return -ENOENT;
4441
4442 mutex_lock(&mvm->mutex);
4443
aab6930d 4444 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4445 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB
4446 if (ret)
4447 goto out;
4448 }
4449
4450 survey->filled = SURVEY_INFO_TIME |
4451 SURVEY_INFO_TIME_RX |
4452 SURVEY_INFO_TIME_TX |
4453 SURVEY_INFO_TIME_SCAN;
4454 survey->time = mvm->accu_radio_stats.on_time_rf +
4455 mvm->radio_stats.on_time_rf;
4456 do_div(survey->time, USEC_PER_MSEC);
4457
4458 survey->time_rx = mvm->accu_radio_stats.rx_time +
4459 mvm->radio_stats.rx_time;
4460 do_div(survey->time_rx, USEC_PER_MSEC);
4461
4462 survey->time_tx = mvm->accu_radio_stats.tx_time +
4463 mvm->radio_stats.tx_time;
4464 do_div(survey->time_tx, USEC_PER_MSEC);
4465
4466 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4467 mvm->radio_stats.on_time_scan;
4468 do_div(survey->time_scan, USEC_PER_MSEC);
4469
10a7c028 4470 ret = 0;
91a8bcde
JB
4471 out:
4472 mutex_unlock(&mvm->mutex);
4473 return ret;
4474}
4475
33cef925
JB
4476static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4477 struct ieee80211_vif *vif,
4478 struct ieee80211_sta *sta,
4479 struct station_info *sinfo)
4480{
4481 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4482 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4483 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4484
988b5968
SS
4485 if (mvmsta->avg_energy) {
4486 sinfo->signal_avg = mvmsta->avg_energy;
22d0d2fa 4487 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
988b5968
SS
4488 }
4489
33cef925
JB
4490 /* if beacon filtering isn't on mac80211 does it anyway */
4491 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4492 return;
4493
4494 if (!vif->bss_conf.assoc)
4495 return;
4496
4497 mutex_lock(&mvm->mutex);
4498
4499 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4500 goto unlock;
4501
4502 if (iwl_mvm_request_statistics(mvm, false))
4503 goto unlock;
4504
4505 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4506 mvmvif->beacon_stats.accu_num_beacons;
22d0d2fa 4507 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
33cef925
JB
4508 if (mvmvif->beacon_stats.avg_signal) {
4509 /* firmware only reports a value after RXing a few beacons */
4510 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
22d0d2fa 4511 sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
33cef925
JB
4512 }
4513 unlock:
4514 mutex_unlock(&mvm->mutex);
4515}
4516
4203263d
EG
4517static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4518 struct ieee80211_vif *vif,
4519 const struct ieee80211_event *event)
d42f5350 4520{
7174beb6
JB
4521#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4522 do { \
4523 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4524 break; \
4525 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG
4526 } while (0)
4527
d42f5350
EG
4528 struct iwl_fw_dbg_trigger_tlv *trig;
4529 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350 4530
6c042d75
SS
4531 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
4532 FW_DBG_TRIGGER_MLME);
4533 if (!trig)
d42f5350
EG
4534 return;
4535
d42f5350 4536 trig_mlme = (void *)trig->data;
d42f5350 4537
d42f5350
EG
4538 if (event->u.mlme.data == ASSOC_EVENT) {
4539 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4540 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG
4541 "DENIED ASSOC: reason %d",
4542 event->u.mlme.reason);
4543 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4544 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG
4545 "ASSOC TIMEOUT");
4546 } else if (event->u.mlme.data == AUTH_EVENT) {
4547 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4548 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG
4549 "DENIED AUTH: reason %d",
4550 event->u.mlme.reason);
4551 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4552 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG
4553 "AUTH TIMEOUT");
4554 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4555 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG
4556 "DEAUTH RX %d", event->u.mlme.reason);
4557 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4558 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG
4559 "DEAUTH TX %d", event->u.mlme.reason);
4560 }
4561#undef CHECK_MLME_TRIGGER
4562}
4563
4203263d
EG
4564static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4565 struct ieee80211_vif *vif,
4566 const struct ieee80211_event *event)
4567{
4568 struct iwl_fw_dbg_trigger_tlv *trig;
4569 struct iwl_fw_dbg_trigger_ba *ba_trig;
4570
6c042d75
SS
4571 trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
4572 FW_DBG_TRIGGER_BA);
4573 if (!trig)
4203263d
EG
4574 return;
4575
4203263d 4576 ba_trig = (void *)trig->data;
4203263d
EG
4577
4578 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4579 return;
4580
7174beb6
JB
4581 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4582 "BAR received from %pM, tid %d, ssn %d",
4583 event->u.ba.sta->addr, event->u.ba.tid,
4584 event->u.ba.ssn);
4203263d
EG
4585}
4586
4203263d
EG
4587static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4588 struct ieee80211_vif *vif,
4589 const struct ieee80211_event *event)
4590{
4591 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4592
4593 switch (event->type) {
4594 case MLME_EVENT:
4595 iwl_mvm_event_mlme_callback(mvm, vif, event);
4596 break;
4597 case BAR_RX_EVENT:
4598 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4599 break;
4600 case BA_FRAME_TIMEOUT:
528a542a
EG
4601 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
4602 event->u.ba.tid);
4203263d
EG
4603 break;
4604 default:
4605 break;
4606 }
4607}
4608
d0ff5d22
SS
4609void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4610 struct iwl_mvm_internal_rxq_notif *notif,
4611 u32 size)
0636b938 4612{
0636b938
SS
4613 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4614 int ret;
4615
4616 lockdep_assert_held(&mvm->mutex);
4617
cb8550e1 4618 if (!iwl_mvm_has_new_rx_api(mvm))
0636b938
SS
4619 return;
4620
d0ff5d22
SS
4621 notif->cookie = mvm->queue_sync_cookie;
4622
4623 if (notif->sync)
4624 atomic_set(&mvm->queue_sync_counter,
4625 mvm->trans->num_rx_queues);
0636b938 4626
d0ff5d22 4627 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS
4628 if (ret) {
4629 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4630 goto out;
4631 }
d0ff5d22 4632
6ad04359 4633 if (notif->sync) {
3a732c65 4634 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB
4635 atomic_read(&mvm->queue_sync_counter) == 0 ||
4636 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4637 HZ);
6ad04359
JB
4638 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4639 }
0636b938
SS
4640
4641out:
4642 atomic_set(&mvm->queue_sync_counter, 0);
4643 mvm->queue_sync_cookie++;
4644}
4645
4646static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4647{
4648 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS
4649 struct iwl_mvm_internal_rxq_notif data = {
4650 .type = IWL_MVM_RXQ_EMPTY,
4651 .sync = 1,
4652 };
0636b938
SS
4653
4654 mutex_lock(&mvm->mutex);
d0ff5d22 4655 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS
4656 mutex_unlock(&mvm->mutex);
4657}
4658
e5209263 4659const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB
4660 .tx = iwl_mvm_mac_tx,
4661 .ampdu_action = iwl_mvm_mac_ampdu_action,
4662 .start = iwl_mvm_mac_start,
cf2c92d8 4663 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB
4664 .stop = iwl_mvm_mac_stop,
4665 .add_interface = iwl_mvm_mac_add_interface,
4666 .remove_interface = iwl_mvm_mac_remove_interface,
4667 .config = iwl_mvm_mac_config,
e59647ea 4668 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4669 .configure_filter = iwl_mvm_configure_filter,
effd1929 4670 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB
4671 .bss_info_changed = iwl_mvm_bss_info_changed,
4672 .hw_scan = iwl_mvm_mac_hw_scan,
4673 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4674 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB
4675 .sta_state = iwl_mvm_mac_sta_state,
4676 .sta_notify = iwl_mvm_mac_sta_notify,
4677 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4678 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4679 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4680 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB
4681 .conf_tx = iwl_mvm_mac_conf_tx,
4682 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4683 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4684 .flush = iwl_mvm_mac_flush,
35a000b7
DS
4685 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4686 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB
4687 .set_key = iwl_mvm_mac_set_key,
4688 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4689 .remain_on_channel = iwl_mvm_roc,
4690 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB
4691 .add_chanctx = iwl_mvm_add_chanctx,
4692 .remove_chanctx = iwl_mvm_remove_chanctx,
4693 .change_chanctx = iwl_mvm_change_chanctx,
4694 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4695 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4696 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4697
5023d966
JB
4698 .start_ap = iwl_mvm_start_ap_ibss,
4699 .stop_ap = iwl_mvm_stop_ap_ibss,
4700 .join_ibss = iwl_mvm_start_ap_ibss,
4701 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4702
2f0282db
JB
4703 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4704
8ca151b5
JB
4705 .set_tim = iwl_mvm_set_tim,
4706
622e3f9b 4707 .channel_switch = iwl_mvm_channel_switch,
f028905c 4708 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4709 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4710
1d3c3f63
AN
4711 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4712 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4713 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4714
d42f5350
EG
4715 .event_callback = iwl_mvm_mac_event_callback,
4716
0636b938
SS
4717 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4718
507cadf2
DS
4719 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4720
8ca151b5
JB
4721#ifdef CONFIG_PM_SLEEP
4722 /* look at d3.c */
4723 .suspend = iwl_mvm_suspend,
4724 .resume = iwl_mvm_resume,
4725 .set_wakeup = iwl_mvm_set_wakeup,
4726 .set_rekey_data = iwl_mvm_set_rekey_data,
4727#if IS_ENABLED(CONFIG_IPV6)
4728 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4729#endif
4730 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4731#endif
91a8bcde 4732 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4733 .sta_statistics = iwl_mvm_mac_sta_statistics,
177a11cf
GG
4734#ifdef CONFIG_IWLWIFI_DEBUGFS
4735 .sta_add_debugfs = iwl_mvm_sta_add_debugfs,
4736#endif
8ca151b5 4737};