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iwlwifi: mvm: add adaptive dwell support
[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 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * USA
26 *
27 * The full GNU General Public License is included in this distribution
410dc5aa 28 * in the file called COPYING.
8ca151b5
JB		 29 *
30 * Contact Information:
cb2f8277 31 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 32 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 *
34 * BSD LICENSE
35 *
51368bf7 36 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 37 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
38 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 39 * All rights reserved.
40 *
41 * Redistribution and use in source and binary forms, with or without
42 * modification, are permitted provided that the following conditions
43 * are met:
44 *
45 * * Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * * Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in
49 * the documentation and/or other materials provided with the
50 * distribution.
51 * * Neither the name Intel Corporation nor the names of its
52 * contributors may be used to endorse or promote products derived
53 * from this software without specific prior written permission.
54 *
55 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
56 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
57 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
58 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
59 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
60 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
61 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
62 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
63 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
64 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
65 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66 *
67 *****************************************************************************/
68#include <linux/kernel.h>
69#include <linux/slab.h>
70#include <linux/skbuff.h>
71#include <linux/netdevice.h>
72#include <linux/etherdevice.h>
f0c2646a 73#include <linux/ip.h>
2ee8f021 74#include <linux/if_arp.h>
2f89a5d7 75#include <linux/time.h>
8ca151b5 76#include <net/mac80211.h>
7b1dd048 77#include <net/ieee80211_radiotap.h>
f0c2646a 78#include <net/tcp.h>
8ca151b5
JB		 79
80#include "iwl-op-mode.h"
81#include "iwl-io.h"
82#include "mvm.h"
83#include "sta.h"
84#include "time-event.h"
85#include "iwl-eeprom-parse.h"
8ca151b5 86#include "iwl-phy-db.h"
507cadf2 87#include "testmode.h"
d962f9b1 88#include "fw/error-dump.h"
655e6d6d 89#include "iwl-prph.h"
88931cc9 90#include "iwl-nvm-parse.h"
8ca151b5
JB		 91
92static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
93 {
94 .max = 1,
8eb38710 95 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 96 },
3c15a0fb
JB		 97 {
98 .max = 1,
8eb38710
IP		 99 .types = BIT(NL80211_IFTYPE_AP) |
100 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 101 BIT(NL80211_IFTYPE_P2P_GO),
102 },
103 {
104 .max = 1,
105 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
106 },
8ca151b5
JB		 107};
108
109static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
110 {
2624a5ca 111 .num_different_channels = 2,
8ca151b5
JB		 112 .max_interfaces = 3,
113 .limits = iwl_mvm_limits,
114 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
115 },
116};
117
77736923 118#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 119/*
120 * Use the reserved field to indicate magic values.
121 * these values will only be used internally by the driver,
122 * and won't make it to the fw (reserved will be 0).
123 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
124 * be the vif's ip address. in case there is not a single
125 * ip address (0, or more than 1), this attribute will
126 * be skipped.
127 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
128 * the LSB bytes of the vif's mac address
129 */
130enum {
131 BC_FILTER_MAGIC_NONE = 0,
132 BC_FILTER_MAGIC_IP,
133 BC_FILTER_MAGIC_MAC,
134};
135
77736923
EP		 136static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
137 {
138 /* arp */
139 .discard = 0,
140 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
141 .attrs = {
142 {
143 /* frame type - arp, hw type - ethernet */
144 .offset_type =
145 BCAST_FILTER_OFFSET_PAYLOAD_START,
146 .offset = sizeof(rfc1042_header),
147 .val = cpu_to_be32(0x08060001),
148 .mask = cpu_to_be32(0xffffffff),
149 },
2ee8f021
EP		 150 {
151 /* arp dest ip */
152 .offset_type =
153 BCAST_FILTER_OFFSET_PAYLOAD_START,
154 .offset = sizeof(rfc1042_header) + 2 +
155 sizeof(struct arphdr) +
156 ETH_ALEN + sizeof(__be32) +
157 ETH_ALEN,
158 .mask = cpu_to_be32(0xffffffff),
159 /* mark it as special field */
160 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
161 },
162 },
163 },
164 {
165 /* dhcp offer bcast */
166 .discard = 0,
167 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
168 .attrs = {
169 {
170 /* udp dest port - 68 (bootp client)*/
171 .offset_type = BCAST_FILTER_OFFSET_IP_END,
172 .offset = offsetof(struct udphdr, dest),
173 .val = cpu_to_be32(0x00440000),
174 .mask = cpu_to_be32(0xffff0000),
175 },
176 {
177 /* dhcp - lsb bytes of client hw address */
178 .offset_type = BCAST_FILTER_OFFSET_IP_END,
179 .offset = 38,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
183 },
77736923
EP		 184 },
185 },
186 /* last filter must be empty */
187 {},
188};
189#endif
190
7498cf4c
EP		 191void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
192{
7bb426ea 193 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 194 return;
195
196 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 197 spin_lock_bh(&mvm->refs_lock);
198 mvm->refs[ref_type]++;
199 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 200 iwl_trans_ref(mvm->trans);
201}
202
203void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
204{
7bb426ea 205 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 206 return;
207
208 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9 209 spin_lock_bh(&mvm->refs_lock);
16c45822
SS		 210 if (WARN_ON(!mvm->refs[ref_type])) {
211 spin_unlock_bh(&mvm->refs_lock);
212 return;
213 }
214 mvm->refs[ref_type]--;
576eeee9 215 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 216 iwl_trans_unref(mvm->trans);
217}
218
576eeee9
EP		 219static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
220 enum iwl_mvm_ref_type except_ref)
7498cf4c 221{
576eeee9 222 int i, j;
7498cf4c 223
7bb426ea 224 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 225 return;
226
576eeee9
EP		 227 spin_lock_bh(&mvm->refs_lock);
228 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
229 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 230 continue;
231
576eeee9
EP		 232 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
233 i, mvm->refs[i]);
234 for (j = 0; j < mvm->refs[i]; j++)
235 iwl_trans_unref(mvm->trans);
236 mvm->refs[i] = 0;
7498cf4c 237 }
576eeee9 238 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 239}
240
f4cf8680
EP		 241bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
242{
243 int i;
244 bool taken = false;
245
246 if (!iwl_mvm_is_d0i3_supported(mvm))
247 return true;
248
249 spin_lock_bh(&mvm->refs_lock);
250 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
251 if (mvm->refs[i]) {
252 taken = true;
253 break;
254 }
255 }
256 spin_unlock_bh(&mvm->refs_lock);
257
258 return taken;
259}
260
576eeee9 261int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 262{
263 iwl_mvm_ref(mvm, ref_type);
264
265 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
266 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
267 HZ)) {
268 WARN_ON_ONCE(1);
269 iwl_mvm_unref(mvm, ref_type);
270 return -EIO;
271 }
272
273 return 0;
274}
275
fe0f2de3
IP		 276static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
277{
278 int i;
279
280 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
281 for (i = 0; i < NUM_PHY_CTX; i++) {
282 mvm->phy_ctxts[i].id = i;
283 mvm->phy_ctxts[i].ref = 0;
284 }
285}
286
88931cc9 287struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 288 const char *alpha2,
47c8b154
JD		 289 enum iwl_mcc_source src_id,
290 bool *changed)
88931cc9
AN		 291{
292 struct ieee80211_regdomain *regd = NULL;
293 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
295 struct iwl_mcc_update_resp *resp;
296
297 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
298
8ba2d7a1 299 lockdep_assert_held(&mvm->mutex);
88931cc9 300
8ba2d7a1 301 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 302 if (IS_ERR_OR_NULL(resp)) {
303 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 304 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 305 goto out;
88931cc9
AN		 306 }
307
47c8b154
JD		 308 if (changed)
309 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
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,
314 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 315 /* Store the return source id */
316 src_id = resp->source_id;
88931cc9
AN		 317 kfree(resp);
318 if (IS_ERR_OR_NULL(regd)) {
319 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 320 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 321 goto out;
88931cc9
AN		 322 }
323
8ba2d7a1
EH		 324 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
325 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 326 mvm->lar_regdom_set = true;
8ba2d7a1 327 mvm->mcc_src = src_id;
88931cc9 328
8ba2d7a1 329out:
88931cc9
AN		 330 return regd;
331}
332
47c8b154
JD		 333void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
334{
335 bool changed;
336 struct ieee80211_regdomain *regd;
337
338 if (!iwl_mvm_is_lar_supported(mvm))
339 return;
340
341 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
342 if (!IS_ERR_OR_NULL(regd)) {
343 /* only update the regulatory core if changed */
344 if (changed)
345 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
346
347 kfree(regd);
348 }
349}
350
351struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
352 bool *changed)
8ba2d7a1
EH		 353{
354 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
355 iwl_mvm_is_wifi_mcc_supported(mvm) ?
356 MCC_SOURCE_GET_CURRENT :
47c8b154 357 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 358}
359
360int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
361{
362 enum iwl_mcc_source used_src;
363 struct ieee80211_regdomain *regd;
b6e160ab
AN		 364 int ret;
365 bool changed;
8ba2d7a1
EH		 366 const struct ieee80211_regdomain *r =
367 rtnl_dereference(mvm->hw->wiphy->regd);
368
369 if (!r)
b6e160ab 370 return -ENOENT;
8ba2d7a1
EH		 371
372 /* save the last source in case we overwrite it below */
373 used_src = mvm->mcc_src;
374 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
375 /* Notify the firmware we support wifi location updates */
47c8b154 376 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 377 if (!IS_ERR_OR_NULL(regd))
378 kfree(regd);
379 }
380
381 /* Now set our last stored MCC and source */
b6e160ab
AN		 382 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
383 &changed);
8ba2d7a1
EH		 384 if (IS_ERR_OR_NULL(regd))
385 return -EIO;
386
b6e160ab
AN		 387 /* update cfg80211 if the regdomain was changed */
388 if (changed)
389 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
390 else
391 ret = 0;
8ba2d7a1 392
b6e160ab
AN		 393 kfree(regd);
394 return ret;
8ba2d7a1
EH		 395}
396
8ca151b5
JB		 397int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
398{
399 struct ieee80211_hw *hw = mvm->hw;
831e85f3 400 int num_mac, ret, i;
5f4c02e2
JB		 401 static const u32 mvm_ciphers[] = {
402 WLAN_CIPHER_SUITE_WEP40,
403 WLAN_CIPHER_SUITE_WEP104,
404 WLAN_CIPHER_SUITE_TKIP,
405 WLAN_CIPHER_SUITE_CCMP,
406 };
8ca151b5
JB		 407
408 /* Tell mac80211 our characteristics */
30686bf7
JB		 409 ieee80211_hw_set(hw, SIGNAL_DBM);
410 ieee80211_hw_set(hw, SPECTRUM_MGMT);
411 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
412 ieee80211_hw_set(hw, QUEUE_CONTROL);
413 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
414 ieee80211_hw_set(hw, SUPPORTS_PS);
415 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
416 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
417 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
418 ieee80211_hw_set(hw, CONNECTION_MONITOR);
419 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
420 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
421 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 422 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 423 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
ecaf71de 424
4243edb4 425 if (iwl_mvm_has_tlc_offload(mvm)) {
ecaf71de
GG		 426 ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
427 ieee80211_hw_set(hw, HAS_RATE_CONTROL);
428 }
429
b915c101
SS		 430 if (iwl_mvm_has_new_rx_api(mvm))
431 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
960f864b
JB		 432
433 if (fw_has_capa(&mvm->fw->ucode_capa,
434 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
65e25482 435 ieee80211_hw_set(hw, AP_LINK_PS);
960f864b
JB		 436 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
437 /*
438 * we absolutely need this for the new TX API since that comes
439 * with many more queues than the current code can deal with
440 * for station powersave
441 */
442 return -EINVAL;
443 }
8ca151b5 444
80938abc
JB		 445 if (mvm->trans->num_rx_queues > 1)
446 ieee80211_hw_set(hw, USES_RSS);
447
2d7cf549
JB		 448 if (mvm->trans->max_skb_frags)
449 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
450
c8f54701 451 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 452 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 453 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
454 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 455 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
456 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB		 457
458 hw->radiotap_timestamp.units_pos =
459 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
460 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
461 /* this is the case for CCK frames, it's better (only 8) for OFDM */
462 hw->radiotap_timestamp.accuracy = 22;
463
4243edb4 464 if (!iwl_mvm_has_tlc_offload(mvm))
9f66a397
GG		 465 hw->rate_control_algorithm = RS_NAME;
466
848955cc
JB		 467 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
468 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 469
8e160ab8 470 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 471 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
472 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
473 hw->wiphy->cipher_suites = mvm->ciphers;
474
2a53d166
AB		 475 if (iwl_mvm_has_new_rx_api(mvm)) {
476 mvm->ciphers[hw->wiphy->n_cipher_suites] =
477 WLAN_CIPHER_SUITE_GCMP;
478 hw->wiphy->n_cipher_suites++;
479 mvm->ciphers[hw->wiphy->n_cipher_suites] =
480 WLAN_CIPHER_SUITE_GCMP_256;
481 hw->wiphy->n_cipher_suites++;
482 }
483
4b87e5af
LC		 484 /* Enable 11w if software crypto is not enabled (as the
485 * firmware will interpret some mgmt packets, so enabling it
486 * with software crypto isn't safe).
8ca151b5 487 */
3b37f4c9 488 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 489 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 490 mvm->ciphers[hw->wiphy->n_cipher_suites] =
491 WLAN_CIPHER_SUITE_AES_CMAC;
492 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 493 if (iwl_mvm_has_new_rx_api(mvm)) {
494 mvm->ciphers[hw->wiphy->n_cipher_suites] =
495 WLAN_CIPHER_SUITE_BIP_GMAC_128;
496 hw->wiphy->n_cipher_suites++;
497 mvm->ciphers[hw->wiphy->n_cipher_suites] =
498 WLAN_CIPHER_SUITE_BIP_GMAC_256;
499 hw->wiphy->n_cipher_suites++;
500 }
5f4c02e2
JB		 501 }
502
503 /* currently FW API supports only one optional cipher scheme */
504 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 505 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
506 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
507
5f4c02e2 508 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 509
510 cs->cipher = le32_to_cpu(fwcs->cipher);
511 cs->iftype = BIT(NL80211_IFTYPE_STATION);
512 cs->hdr_len = fwcs->hdr_len;
513 cs->pn_len = fwcs->pn_len;
514 cs->pn_off = fwcs->pn_off;
515 cs->key_idx_off = fwcs->key_idx_off;
516 cs->key_idx_mask = fwcs->key_idx_mask;
517 cs->key_idx_shift = fwcs->key_idx_shift;
518 cs->mic_len = fwcs->mic_len;
519
520 mvm->hw->cipher_schemes = mvm->cs;
521 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 522 hw->wiphy->n_cipher_suites++;
523 }
8ca151b5 524
30686bf7 525 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 526 hw->wiphy->features |=
527 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 528 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
529 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 530
8ca151b5
JB		 531 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
532 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 533 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 534
535 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 536 BIT(NL80211_IFTYPE_P2P_CLIENT) |
537 BIT(NL80211_IFTYPE_AP) |
538 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 539 BIT(NL80211_IFTYPE_P2P_DEVICE) |
540 BIT(NL80211_IFTYPE_ADHOC);
5023d966 541
a2f73b6c 542 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 543 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
544 if (iwl_mvm_is_lar_supported(mvm))
545 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
546 else
547 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
548 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 549
4b87e5af 550 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 551 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 552
8ca151b5
JB		 553 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
554 hw->wiphy->n_iface_combinations =
555 ARRAY_SIZE(iwl_mvm_iface_combinations);
556
c451e6d4 557 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 558 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 559 /* we can compensate an offset of up to 3 channels = 15 MHz */
560 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 561
562 /* Extract MAC address */
563 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
564 hw->wiphy->addresses = mvm->addresses;
565 hw->wiphy->n_addresses = 1;
831e85f3
IP		 566
567 /* Extract additional MAC addresses if available */
568 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
569 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
570
571 for (i = 1; i < num_mac; i++) {
572 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 573 ETH_ALEN);
831e85f3 574 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 575 hw->wiphy->n_addresses++;
576 }
577
fe0f2de3
IP		 578 iwl_mvm_reset_phy_ctxts(mvm);
579
999d2568 580 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 581
8ca151b5
JB		 582 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
583
c7d42480 584 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 585 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
586 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
587
859d914c 588 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 589 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
590 else
591 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
592
57fbcce3
JB		 593 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
594 hw->wiphy->bands[NL80211_BAND_2GHZ] =
595 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
596 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
597 hw->wiphy->bands[NL80211_BAND_5GHZ] =
598 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 599
859d914c
JB		 600 if (fw_has_capa(&mvm->fw->ucode_capa,
601 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
602 fw_has_api(&mvm->fw->ucode_capa,
603 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 604 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 605 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
606 }
607
8ca151b5
JB		 608 hw->wiphy->hw_version = mvm->trans->hw_id;
609
ade50652 610 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 611 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
612 else
613 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
614
ca986ad9 615 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG		 616 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
617 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
618 /* we create the 802.11 header and zero length SSID IE. */
619 hw->wiphy->max_sched_scan_ie_len =
620 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 621 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
622 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
623
624 /*
625 * the firmware uses u8 for num of iterations, but 0xff is saved for
626 * infinite loop, so the maximum number of iterations is actually 254.
627 */
628 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 629
8ca151b5 630 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 631 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 632 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 633 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 634 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 635 NL80211_FEATURE_STATIC_SMPS |
636 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 637
859d914c
JB		 638 if (fw_has_capa(&mvm->fw->ucode_capa,
639 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 640 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 641 if (fw_has_capa(&mvm->fw->ucode_capa,
642 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 643 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 644
859d914c
JB		 645 if (fw_has_capa(&mvm->fw->ucode_capa,
646 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 647 hw->wiphy->features |=
648 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
649
859d914c
JB		 650 if (fw_has_capa(&mvm->fw->ucode_capa,
651 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 652 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
653
aacf8f18
AS		 654 if (fw_has_api(&mvm->fw->ucode_capa,
655 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
656 wiphy_ext_feature_set(hw->wiphy,
657 NL80211_EXT_FEATURE_SCAN_START_TIME);
658 wiphy_ext_feature_set(hw->wiphy,
659 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
660 wiphy_ext_feature_set(hw->wiphy,
661 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
662 }
663
8ca151b5
JB		 664 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
665
666#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 667 if (iwl_mvm_is_d0i3_supported(mvm) &&
668 device_can_wakeup(mvm->trans->dev)) {
669 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
670 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 671 }
672
eef187a7 673 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB		 674 mvm->trans->ops->d3_suspend &&
675 mvm->trans->ops->d3_resume &&
676 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 677 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
678 WIPHY_WOWLAN_DISCONNECT |
679 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
680 WIPHY_WOWLAN_RFKILL_RELEASE |
681 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 682 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB		 683 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
684 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
685 WIPHY_WOWLAN_4WAY_HANDSHAKE;
686
687 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
688 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
689 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 690 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2 691 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 692 }
693#endif
694
77736923
EP		 695#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
696 /* assign default bcast filtering configuration */
697 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
698#endif
699
8ca151b5
JB		 700 ret = iwl_mvm_leds_init(mvm);
701 if (ret)
702 return ret;
703
859d914c
JB		 704 if (fw_has_capa(&mvm->fw->ucode_capa,
705 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 706 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
707 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 708 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 709 }
710
859d914c
JB		 711 if (fw_has_capa(&mvm->fw->ucode_capa,
712 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 713 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
714 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
715 }
716
93190fb0 717 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 718 if (!iwl_mvm_is_csum_supported(mvm)) {
719 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
720 NETIF_F_RXCSUM);
721 /* We may support SW TX CSUM */
722 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
723 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
724 }
41837ca9 725
b7327d89
EG		 726 ret = ieee80211_register_hw(mvm->hw);
727 if (ret)
728 iwl_mvm_leds_exit(mvm);
de8ba41b 729 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 730
91b08c2d
AE		 731 if (mvm->cfg->vht_mu_mimo_supported)
732 wiphy_ext_feature_set(hw->wiphy,
733 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
734
b7327d89 735 return ret;
8ca151b5
JB		 736}
737
b2492501
AN		 738static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
739 struct ieee80211_sta *sta,
740 struct sk_buff *skb)
741{
742 struct iwl_mvm_sta *mvmsta;
743 bool defer = false;
744
745 /*
746 * double check the IN_D0I3 flag both before and after
747 * taking the spinlock, in order to prevent taking
748 * the spinlock when not needed.
749 */
750 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
751 return false;
752
753 spin_lock(&mvm->d0i3_tx_lock);
754 /*
755 * testing the flag again ensures the skb dequeue
756 * loop (on d0i3 exit) hasn't run yet.
757 */
758 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
759 goto out;
760
761 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 762 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN		 763 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
764 goto out;
765
766 __skb_queue_tail(&mvm->d0i3_tx, skb);
767 ieee80211_stop_queues(mvm->hw);
768
769 /* trigger wakeup */
770 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
771 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
772
773 defer = true;
774out:
775 spin_unlock(&mvm->d0i3_tx_lock);
776 return defer;
777}
778
8ca151b5
JB		 779static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
780 struct ieee80211_tx_control *control,
781 struct sk_buff *skb)
782{
783 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 784 struct ieee80211_sta *sta = control->sta;
785 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
786 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 787
9ee718aa
EL		 788 if (iwl_mvm_is_radio_killed(mvm)) {
789 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 790 goto drop;
791 }
792
d20e30af 793 if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 794 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
795 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 796 goto drop;
797
eb045e6e
DS		 798 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
799 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
800 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
801 ieee80211_is_mgmt(hdr->frame_control) &&
802 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
3e56eadf
JB		 803 sta = NULL;
804
805 if (sta) {
b2492501
AN		 806 if (iwl_mvm_defer_tx(mvm, sta, skb))
807 return;
3e56eadf 808 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 809 goto drop;
810 return;
811 }
812
813 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
814 goto drop;
815 return;
816 drop:
817 ieee80211_free_txskb(hw, skb);
818}
819
205e2210
EG		 820static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
821{
822 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
823 return false;
824 return true;
825}
826
827static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
828{
829 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
830 return false;
831 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
832 return true;
833
834 /* enabled by default */
835 return true;
836}
837
7174beb6
JB		 838#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
839 do { \
840 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
841 break; \
842 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG		 843 } while (0)
844
845static void
846iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
847 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
848 enum ieee80211_ampdu_mlme_action action)
849{
850 struct iwl_fw_dbg_trigger_tlv *trig;
851 struct iwl_fw_dbg_trigger_ba *ba_trig;
852
853 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
854 return;
855
856 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
857 ba_trig = (void *)trig->data;
858
7174beb6
JB		 859 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
860 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 861 return;
862
863 switch (action) {
864 case IEEE80211_AMPDU_TX_OPERATIONAL: {
865 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
866 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
867
868 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
869 "TX AGG START: MAC %pM tid %d ssn %d\n",
870 sta->addr, tid, tid_data->ssn);
871 break;
872 }
873 case IEEE80211_AMPDU_TX_STOP_CONT:
874 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
875 "TX AGG STOP: MAC %pM tid %d\n",
876 sta->addr, tid);
877 break;
878 case IEEE80211_AMPDU_RX_START:
879 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
880 "RX AGG START: MAC %pM tid %d ssn %d\n",
881 sta->addr, tid, rx_ba_ssn);
882 break;
883 case IEEE80211_AMPDU_RX_STOP:
884 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
885 "RX AGG STOP: MAC %pM tid %d\n",
886 sta->addr, tid);
887 break;
888 default:
889 break;
890 }
891}
892
8ca151b5
JB		 893static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
894 struct ieee80211_vif *vif,
50ea05ef 895 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 896{
897 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
898 int ret;
b2492501 899 bool tx_agg_ref = false;
50ea05ef
SS		 900 struct ieee80211_sta *sta = params->sta;
901 enum ieee80211_ampdu_mlme_action action = params->action;
902 u16 tid = params->tid;
903 u16 *ssn = &params->ssn;
904 u8 buf_size = params->buf_size;
bb81bb68 905 bool amsdu = params->amsdu;
10b2b201 906 u16 timeout = params->timeout;
8ca151b5
JB		 907
908 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
909 sta->addr, tid, action);
910
911 if (!(mvm->nvm_data->sku_cap_11n_enable))
912 return -EACCES;
913
b2492501 914 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 915 switch (action) {
916 case IEEE80211_AMPDU_TX_START:
917 case IEEE80211_AMPDU_TX_STOP_CONT:
918 case IEEE80211_AMPDU_TX_STOP_FLUSH:
919 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
920 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 921 /*
9256c205
EP		 922 * for tx start, wait synchronously until D0i3 exit to
923 * get the correct sequence number for the tid.
924 * additionally, some other ampdu actions use direct
925 * target access, which is not handled automatically
926 * by the trans layer (unlike commands), so wait for
927 * d0i3 exit in these cases as well.
b2492501 928 */
d40fc489
GG		 929 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
930 if (ret)
931 return ret;
932
933 tx_agg_ref = true;
9256c205
EP		 934 break;
935 default:
936 break;
b2492501
AN		 937 }
938
8ca151b5
JB		 939 mutex_lock(&mvm->mutex);
940
941 switch (action) {
942 case IEEE80211_AMPDU_RX_START:
205e2210 943 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 944 ret = -EINVAL;
945 break;
946 }
10b2b201
SS		 947 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
948 timeout);
8ca151b5
JB		 949 break;
950 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 951 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
952 timeout);
8ca151b5
JB		 953 break;
954 case IEEE80211_AMPDU_TX_START:
205e2210 955 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 956 ret = -EINVAL;
957 break;
958 }
8ca151b5
JB		 959 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
960 break;
961 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 962 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
963 break;
8ca151b5
JB		 964 case IEEE80211_AMPDU_TX_STOP_FLUSH:
965 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 966 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 967 break;
968 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 969 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
970 buf_size, amsdu);
8ca151b5
JB		 971 break;
972 default:
973 WARN_ON_ONCE(1);
974 ret = -EINVAL;
975 break;
976 }
4203263d
EG		 977
978 if (!ret) {
979 u16 rx_ba_ssn = 0;
980
981 if (action == IEEE80211_AMPDU_RX_START)
982 rx_ba_ssn = *ssn;
983
984 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
985 rx_ba_ssn, action);
986 }
8ca151b5
JB		 987 mutex_unlock(&mvm->mutex);
988
b2492501
AN		 989 /*
990 * If the tid is marked as started, we won't use it for offloaded
991 * traffic on the next D0i3 entry. It's safe to unref.
992 */
993 if (tx_agg_ref)
994 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
995
8ca151b5
JB		 996 return ret;
997}
998
999static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1000 struct ieee80211_vif *vif)
1001{
1002 struct iwl_mvm *mvm = data;
1003 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1004
1005 mvmvif->uploaded = false;
0ae98812 1006 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1007
8ca151b5
JB		 1008 spin_lock_bh(&mvm->time_event_lock);
1009 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1010 spin_unlock_bh(&mvm->time_event_lock);
1011
fe0f2de3 1012 mvmvif->phy_ctxt = NULL;
8a275bad 1013 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1014}
1015
1016static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1017{
58629d9d
JB		 1018 /* clear the D3 reconfig, we only need it to avoid dumping a
1019 * firmware coredump on reconfiguration, we shouldn't do that
1020 * on D3->D0 transition
1021 */
b6eaa45a 1022 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB		 1023 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1024 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1025 }
1bd3cbc1 1026
744cb695
EP		 1027 /* cleanup all stale references (scan, roc), but keep the
1028 * ucode_down ref until reconfig is complete
1029 */
1030 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1031
fcb6b92a 1032 iwl_mvm_stop_device(mvm);
8ca151b5 1033
9af91f46 1034 mvm->scan_status = 0;
b1873300 1035 mvm->ps_disabled = false;
31b8b343 1036 mvm->calibrating = false;
8ca151b5
JB		 1037
1038 /* just in case one was running */
305d236e 1039 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1040 ieee80211_remain_on_channel_expired(mvm->hw);
1041
737719fe
AN		 1042 /*
1043 * cleanup all interfaces, even inactive ones, as some might have
1044 * gone down during the HW restart
1045 */
1046 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1047
fe0f2de3 1048 mvm->p2p_device_vif = NULL;
0ae98812 1049 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP		 1050
1051 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1052 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
24afba76 1053 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
8a275bad 1054 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1055 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1056
1057 ieee80211_wake_queues(mvm->hw);
1058
228670b2
EP		 1059 /* clear any stale d0i3 state */
1060 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1061
8ca151b5 1062 mvm->vif_count = 0;
113a0447 1063 mvm->rx_ba_sessions = 0;
7174beb6 1064 mvm->fwrt.dump.conf = FW_DBG_INVALID;
baf41bc3 1065 mvm->monitor_on = false;
91a8bcde
JB		 1066
1067 /* keep statistics ticking */
1068 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1069}
1070
a0a09243 1071int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1072{
8ca151b5
JB		 1073 int ret;
1074
a0a09243 1075 lockdep_assert_held(&mvm->mutex);
8ca151b5 1076
bf8b286f
JB		 1077 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1078 /*
1079 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1080 * so later code will - from now on - see that we're doing it.
1081 */
1082 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1083 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
a42b2af3 1084 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1085 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1086 } else {
1087 /* Hold the reference to prevent runtime suspend while
1088 * the start procedure runs. It's a bit confusing
1089 * that the UCODE_DOWN reference is taken, but it just
1090 * means "UCODE is not UP yet". ( TODO: rename this
1091 * reference).
1092 */
1093 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1094 }
8ca151b5 1095 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1096
1097 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1098 /* Something went wrong - we need to finish some cleanup
1099 * that normally iwl_mvm_mac_restart_complete() below
1100 * would do.
1101 */
1102 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1103 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1104 }
1105
a0a09243
LC		 1106 return ret;
1107}
1108
1109static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1110{
1111 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1112 int ret;
1113
37948fcf
EP		 1114 /* Some hw restart cleanups must not hold the mutex */
1115 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1116 /*
1117 * Make sure we are out of d0i3. This is needed
1118 * to make sure the reference accounting is correct
1119 * (and there is no stale d0i3_exit_work).
1120 */
1121 wait_event_timeout(mvm->d0i3_exit_waitq,
1122 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1123 &mvm->status),
1124 HZ);
1125 }
1126
a0a09243
LC		 1127 mutex_lock(&mvm->mutex);
1128 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1129 mutex_unlock(&mvm->mutex);
1130
1131 return ret;
1132}
1133
cf2c92d8 1134static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1135{
8ca151b5
JB		 1136 int ret;
1137
1138 mutex_lock(&mvm->mutex);
1139
1140 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1141 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1142 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1143 if (ret)
1144 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1145 ret);
1146
7498cf4c
EP		 1147 /* allow transport/FW low power modes */
1148 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1149
cbd2ae2d
AN		 1150 /*
1151 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1152 * of packets the FW sent out, so we must reconnect.
1153 */
1154 iwl_mvm_teardown_tdls_peers(mvm);
1155
8ca151b5
JB		 1156 mutex_unlock(&mvm->mutex);
1157}
1158
088070a2
EP		 1159static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1160{
b7282643
LC		 1161 if (iwl_mvm_is_d0i3_supported(mvm) &&
1162 iwl_mvm_enter_d0i3_on_suspend(mvm))
1163 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1164 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1165 &mvm->status),
1166 HZ),
1167 "D0i3 exit on resume timed out\n");
088070a2
EP		 1168}
1169
cf2c92d8
EP		 1170static void
1171iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1172 enum ieee80211_reconfig_type reconfig_type)
1173{
1174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1175
1176 switch (reconfig_type) {
1177 case IEEE80211_RECONFIG_TYPE_RESTART:
1178 iwl_mvm_restart_complete(mvm);
1179 break;
1180 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1181 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1182 break;
1183 }
1184}
1185
a0a09243 1186void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1187{
a0a09243 1188 lockdep_assert_held(&mvm->mutex);
7498cf4c 1189
91a8bcde
JB		 1190 /* firmware counters are obviously reset now, but we shouldn't
1191 * partially track so also clear the fw_reset_accu counters.
1192 */
1193 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1194
8ca151b5
JB		 1195 /* async_handlers_wk is now blocked */
1196
1197 /*
1198 * The work item could be running or queued if the
1199 * ROC time event stops just as we get here.
1200 */
c779273b 1201 flush_work(&mvm->roc_done_wk);
8ca151b5 1202
fcb6b92a 1203 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1204
1205 iwl_mvm_async_handlers_purge(mvm);
1206 /* async_handlers_list is empty and will stay empty: HW is stopped */
1207
1208 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1209 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1210
0a79a0c0
EP		 1211 /*
1212 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1213 * won't be called in this case).
8b2b9fbf
AN		 1214 * But make sure to cleanup interfaces that have gone down before/during
1215 * HW restart was requested.
0a79a0c0 1216 */
8b2b9fbf
AN		 1217 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1218 ieee80211_iterate_interfaces(mvm->hw, 0,
1219 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1220
963221be
AB		 1221 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1222 * make sure there's nothing left there and warn if any is found.
1223 */
859d914c 1224 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1225 int i;
1226
507e4cda 1227 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1228 if (WARN_ONCE(mvm->scan_uid_status[i],
1229 "UMAC scan UID %d status was not cleaned\n",
1230 i))
1231 mvm->scan_uid_status[i] = 0;
963221be
AB		 1232 }
1233 }
a0a09243 1234}
bc44886d 1235
a0a09243
LC		 1236static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1237{
1238 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1239
1240 flush_work(&mvm->d0i3_exit_work);
1241 flush_work(&mvm->async_handlers_wk);
24afba76 1242 flush_work(&mvm->add_stream_wk);
771147b0
JB		 1243
1244 /*
1245 * Lock and clear the firmware running bit here already, so that
1246 * new commands coming in elsewhere, e.g. from debugfs, will not
1247 * be able to proceed. This is important here because one of those
7174beb6 1248 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB		 1249 * don't stop debugfs accesses before canceling that it could be
1250 * retriggered after we flush it but before we've cleared the bit.
1251 */
1252 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1253
7174beb6 1254 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1255 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1256 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1257 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC		 1258
1259 mutex_lock(&mvm->mutex);
1260 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1261 mutex_unlock(&mvm->mutex);
1262
1263 /*
1264 * The worker might have been waiting for the mutex, let it run and
1265 * discover that its list is now empty.
1266 */
1267 cancel_work_sync(&mvm->async_handlers_wk);
1268}
1269
fe0f2de3
IP		 1270static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1271{
1272 u16 i;
1273
1274 lockdep_assert_held(&mvm->mutex);
1275
1276 for (i = 0; i < NUM_PHY_CTX; i++)
1277 if (!mvm->phy_ctxts[i].ref)
1278 return &mvm->phy_ctxts[i];
1279
1280 IWL_ERR(mvm, "No available PHY context\n");
1281 return NULL;
1282}
1283
d44c3fe6
AA		 1284static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1285 s16 tx_power)
1286{
1287 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1288 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1289 .v3.mac_context_id =
d44c3fe6 1290 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1291 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1292 };
da03f029 1293 int len = sizeof(cmd);
d44c3fe6 1294
d44c3fe6 1295 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1296 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1297
55bfa4b9
LC		 1298 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1299 len = sizeof(cmd.v3);
da03f029
JB		 1300
1301 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1302}
1303
8ca151b5
JB		 1304static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1305 struct ieee80211_vif *vif)
1306{
1307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1308 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1309 int ret;
1310
aa5e1832
EG		 1311 mvmvif->mvm = mvm;
1312
d40fc489
GG		 1313 /*
1314 * make sure D0i3 exit is completed, otherwise a target access
1315 * during tx queue configuration could be done when still in
1316 * D0i3 state.
1317 */
1318 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1319 if (ret)
1320 return ret;
1321
8ca151b5
JB		 1322 /*
1323 * Not much to do here. The stack will not allow interface
1324 * types or combinations that we didn't advertise, so we
1325 * don't really have to check the types.
1326 */
1327
1328 mutex_lock(&mvm->mutex);
1329
33cef925
JB		 1330 /* make sure that beacon statistics don't go backwards with FW reset */
1331 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1332 mvmvif->beacon_stats.accu_num_beacons +=
1333 mvmvif->beacon_stats.num_beacons;
1334
e89044d7 1335 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1336 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1337 if (ret)
1338 goto out_unlock;
1339
1c2abf72 1340 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1341 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1342 mvm->vif_count++;
ea183d02 1343
8ca151b5
JB		 1344 /*
1345 * The AP binding flow can be done only after the beacon
1346 * template is configured (which happens only in the mac80211
1347 * start_ap() flow), and adding the broadcast station can happen
1348 * only after the binding.
1349 * In addition, since modifying the MAC before adding a bcast
1350 * station is not allowed by the FW, delay the adding of MAC context to
1351 * the point where we can also add the bcast station.
1352 * In short: there's not much we can do at this point, other than
1353 * allocating resources :)
1354 */
5023d966
JB		 1355 if (vif->type == NL80211_IFTYPE_AP ||
1356 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1357 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1358 if (ret) {
1359 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1360 goto out_release;
1361 }
1362
c8f54701
JB		 1363 /*
1364 * Only queue for this station is the mcast queue,
1365 * which shouldn't be in TFD mask anyway
1366 */
1367 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1368 0, vif->type,
1369 IWL_STA_MULTICAST);
1370 if (ret)
1371 goto out_release;
26d6c16b 1372
77740cb4 1373 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1374 goto out_unlock;
1375 }
1376
93190fb0
AA		 1377 mvmvif->features |= hw->netdev_features;
1378
8ca151b5
JB		 1379 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1380 if (ret)
1381 goto out_release;
1382
999609f1 1383 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1384 if (ret)
fd66fc1c 1385 goto out_remove_mac;
8ca151b5 1386
7df15b1e 1387 /* beacon filtering */
a1022927 1388 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1389 if (ret)
1390 goto out_remove_mac;
1391
7df15b1e 1392 if (!mvm->bf_allowed_vif &&
73e5f2c5 1393 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1394 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1395 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1396 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1397 }
1398
8ca151b5
JB		 1399 /*
1400 * P2P_DEVICE interface does not have a channel context assigned to it,
1401 * so a dedicated PHY context is allocated to it and the corresponding
1402 * MAC context is bound to it at this stage.
1403 */
1404 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1405
fe0f2de3
IP		 1406 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1407 if (!mvmvif->phy_ctxt) {
1408 ret = -ENOSPC;
bd3351ba 1409 goto out_free_bf;
fe0f2de3 1410 }
8ca151b5 1411
53a9d61e 1412 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1413 ret = iwl_mvm_binding_add_vif(mvm, vif);
1414 if (ret)
53a9d61e 1415 goto out_unref_phy;
8ca151b5 1416
d197358b 1417 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
8ca151b5
JB		 1418 if (ret)
1419 goto out_unbind;
1420
1421 /* Save a pointer to p2p device vif, so it can later be used to
1422 * update the p2p device MAC when a GO is started/stopped */
1423 mvm->p2p_device_vif = vif;
1424 }
1425
baf41bc3
ST		 1426 if (vif->type == NL80211_IFTYPE_MONITOR)
1427 mvm->monitor_on = true;
1428
63494374 1429 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1430 goto out_unlock;
1431
1432 out_unbind:
1433 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1434 out_unref_phy:
fe0f2de3 1435 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1436 out_free_bf:
1437 if (mvm->bf_allowed_vif == mvmvif) {
1438 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1439 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1440 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1441 }
8ca151b5
JB		 1442 out_remove_mac:
1443 mvmvif->phy_ctxt = NULL;
1444 iwl_mvm_mac_ctxt_remove(mvm, vif);
1445 out_release:
5ee2b215
AB		 1446 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1447 mvm->vif_count--;
8ca151b5
JB		 1448 out_unlock:
1449 mutex_unlock(&mvm->mutex);
1450
d40fc489
GG		 1451 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1452
8ca151b5
JB		 1453 return ret;
1454}
1455
38a12b5b
JB		 1456static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1457 struct ieee80211_vif *vif)
8ca151b5 1458{
8ca151b5
JB		 1459 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1460 /*
1461 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1462 * We assume here that all the packets sent to the OFFCHANNEL
1463 * queue are sent in ROC session.
1464 */
1465 flush_work(&mvm->roc_done_wk);
8ca151b5 1466 }
38a12b5b
JB		 1467}
1468
1469static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1470 struct ieee80211_vif *vif)
1471{
1472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1473 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1474
1475 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1476
1477 mutex_lock(&mvm->mutex);
1478
7df15b1e
HG		 1479 if (mvm->bf_allowed_vif == mvmvif) {
1480 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1481 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1482 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1483 }
1484
63494374
JB		 1485 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1486
8ca151b5
JB		 1487 /*
1488 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1489 * interface is be handled as part of the stop_ap flow.
8ca151b5 1490 */
5023d966
JB		 1491 if (vif->type == NL80211_IFTYPE_AP ||
1492 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1493#ifdef CONFIG_NL80211_TESTMODE
1494 if (vif == mvm->noa_vif) {
1495 mvm->noa_vif = NULL;
1496 mvm->noa_duration = 0;
1497 }
1498#endif
26d6c16b 1499 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1500 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1501 goto out_release;
1502 }
1503
1504 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1505 mvm->p2p_device_vif = NULL;
d197358b 1506 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
8ca151b5 1507 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1508 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1509 mvmvif->phy_ctxt = NULL;
1510 }
1511
5ee2b215 1512 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1513 mvm->vif_count--;
1c2abf72 1514
999609f1 1515 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1516 iwl_mvm_mac_ctxt_remove(mvm, vif);
1517
baf41bc3
ST		 1518 if (vif->type == NL80211_IFTYPE_MONITOR)
1519 mvm->monitor_on = false;
1520
8ca151b5 1521out_release:
8ca151b5
JB		 1522 mutex_unlock(&mvm->mutex);
1523}
1524
1525static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1526{
8ca151b5
JB		 1527 return 0;
1528}
1529
e59647ea
EP		 1530struct iwl_mvm_mc_iter_data {
1531 struct iwl_mvm *mvm;
1532 int port_id;
1533};
1534
1535static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1536 struct ieee80211_vif *vif)
1537{
1538 struct iwl_mvm_mc_iter_data *data = _data;
1539 struct iwl_mvm *mvm = data->mvm;
1540 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
97bce57b
LC		 1541 struct iwl_host_cmd hcmd = {
1542 .id = MCAST_FILTER_CMD,
1543 .flags = CMD_ASYNC,
1544 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1545 };
e59647ea
EP		 1546 int ret, len;
1547
1548 /* if we don't have free ports, mcast frames will be dropped */
1549 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1550 return;
1551
1552 if (vif->type != NL80211_IFTYPE_STATION ||
1553 !vif->bss_conf.assoc)
1554 return;
1555
1556 cmd->port_id = data->port_id++;
1557 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1558 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1559
97bce57b
LC		 1560 hcmd.len[0] = len;
1561 hcmd.data[0] = cmd;
1562
1563 ret = iwl_mvm_send_cmd(mvm, &hcmd);
e59647ea
EP		 1564 if (ret)
1565 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1566}
1567
1568static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1569{
1570 struct iwl_mvm_mc_iter_data iter_data = {
1571 .mvm = mvm,
88f2fd73
MG		 1572 };
1573
e59647ea
EP		 1574 lockdep_assert_held(&mvm->mutex);
1575
1576 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1577 return;
1578
1c4abec0 1579 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1580 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1581 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1582}
1583
e59647ea
EP		 1584static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1585 struct netdev_hw_addr_list *mc_list)
8ca151b5 1586{
e59647ea
EP		 1587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1588 struct iwl_mcast_filter_cmd *cmd;
1589 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1590 int addr_count;
1591 bool pass_all;
e59647ea
EP		 1592 int len;
1593
f3bd58f4
MS		 1594 addr_count = netdev_hw_addr_list_count(mc_list);
1595 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1596 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1597 if (pass_all)
e59647ea 1598 addr_count = 0;
e59647ea
EP		 1599
1600 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1601 cmd = kzalloc(len, GFP_ATOMIC);
1602 if (!cmd)
1603 return 0;
1604
1605 if (pass_all) {
1606 cmd->pass_all = 1;
1607 return (u64)(unsigned long)cmd;
1608 }
1609
1610 netdev_hw_addr_list_for_each(addr, mc_list) {
1611 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1612 cmd->count, addr->addr);
1613 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1614 addr->addr, ETH_ALEN);
1615 cmd->count++;
1616 }
1617
1618 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1619}
1620
1621static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1622 unsigned int changed_flags,
1623 unsigned int *total_flags,
1624 u64 multicast)
1625{
e59647ea
EP		 1626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1627 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1628
e59647ea 1629 mutex_lock(&mvm->mutex);
51b6b9e0 1630
e59647ea
EP		 1631 /* replace previous configuration */
1632 kfree(mvm->mcast_filter_cmd);
1633 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1634
e59647ea
EP		 1635 if (!cmd)
1636 goto out;
51b6b9e0 1637
61e7d91b
LC		 1638 if (changed_flags & FIF_ALLMULTI)
1639 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1640
1641 if (cmd->pass_all)
1642 cmd->count = 0;
1643
e59647ea
EP		 1644 iwl_mvm_recalc_multicast(mvm);
1645out:
1646 mutex_unlock(&mvm->mutex);
1647 *total_flags = 0;
51b6b9e0
EG		 1648}
1649
effd1929
AO		 1650static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1651 struct ieee80211_vif *vif,
1652 unsigned int filter_flags,
1653 unsigned int changed_flags)
1654{
1655 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1656
1657 /* We support only filter for probe requests */
1658 if (!(changed_flags & FIF_PROBE_REQ))
1659 return;
1660
1661 /* Supported only for p2p client interfaces */
1662 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1663 !vif->p2p)
1664 return;
1665
1666 mutex_lock(&mvm->mutex);
1667 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1668 mutex_unlock(&mvm->mutex);
1669}
1670
c87163b9
EP		 1671#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1672struct iwl_bcast_iter_data {
1673 struct iwl_mvm *mvm;
1674 struct iwl_bcast_filter_cmd *cmd;
1675 u8 current_filter;
1676};
1677
1678static void
1679iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1680 const struct iwl_fw_bcast_filter *in_filter,
1681 struct iwl_fw_bcast_filter *out_filter)
1682{
1683 struct iwl_fw_bcast_filter_attr *attr;
1684 int i;
1685
1686 memcpy(out_filter, in_filter, sizeof(*out_filter));
1687
1688 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1689 attr = &out_filter->attrs[i];
1690
1691 if (!attr->mask)
1692 break;
1693
2ee8f021
EP		 1694 switch (attr->reserved1) {
1695 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1696 if (vif->bss_conf.arp_addr_cnt != 1) {
1697 attr->mask = 0;
1698 continue;
1699 }
1700
1701 attr->val = vif->bss_conf.arp_addr_list[0];
1702 break;
1703 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1704 attr->val = *(__be32 *)&vif->addr[2];
1705 break;
1706 default:
1707 break;
1708 }
1709 attr->reserved1 = 0;
c87163b9
EP		 1710 out_filter->num_attrs++;
1711 }
1712}
1713
1714static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1715 struct ieee80211_vif *vif)
1716{
1717 struct iwl_bcast_iter_data *data = _data;
1718 struct iwl_mvm *mvm = data->mvm;
1719 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1720 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1721 struct iwl_fw_bcast_mac *bcast_mac;
1722 int i;
1723
1724 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1725 return;
1726
1727 bcast_mac = &cmd->macs[mvmvif->id];
1728
e48393e8
IP		 1729 /*
1730 * enable filtering only for associated stations, but not for P2P
1731 * Clients
1732 */
1733 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1734 !vif->bss_conf.assoc)
c87163b9
EP		 1735 return;
1736
1737 bcast_mac->default_discard = 1;
1738
1739 /* copy all configured filters */
1740 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1741 /*
1742 * Make sure we don't exceed our filters limit.
1743 * if there is still a valid filter to be configured,
1744 * be on the safe side and just allow bcast for this mac.
1745 */
1746 if (WARN_ON_ONCE(data->current_filter >=
1747 ARRAY_SIZE(cmd->filters))) {
1748 bcast_mac->default_discard = 0;
1749 bcast_mac->attached_filters = 0;
1750 break;
1751 }
1752
1753 iwl_mvm_set_bcast_filter(vif,
1754 &mvm->bcast_filters[i],
1755 &cmd->filters[data->current_filter]);
1756
1757 /* skip current filter if it contains no attributes */
1758 if (!cmd->filters[data->current_filter].num_attrs)
1759 continue;
1760
1761 /* attach the filter to current mac */
1762 bcast_mac->attached_filters |=
1763 cpu_to_le16(BIT(data->current_filter));
1764
1765 data->current_filter++;
1766 }
1767}
1768
de06a59e
EP		 1769bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1770 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1771{
c87163b9
EP		 1772 struct iwl_bcast_iter_data iter_data = {
1773 .mvm = mvm,
de06a59e 1774 .cmd = cmd,
c87163b9
EP		 1775 };
1776
3b8983b1
MS		 1777 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1778 return false;
1779
de06a59e
EP		 1780 memset(cmd, 0, sizeof(*cmd));
1781 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1782 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1783
1784#ifdef CONFIG_IWLWIFI_DEBUGFS
1785 /* use debugfs filters/macs if override is configured */
1786 if (mvm->dbgfs_bcast_filtering.override) {
1787 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1788 sizeof(cmd->filters));
1789 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1790 sizeof(cmd->macs));
1791 return true;
1792 }
1793#endif
c87163b9
EP		 1794
1795 /* if no filters are configured, do nothing */
1796 if (!mvm->bcast_filters)
de06a59e 1797 return false;
c87163b9
EP		 1798
1799 /* configure and attach these filters for each associated sta vif */
1800 ieee80211_iterate_active_interfaces(
1801 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1802 iwl_mvm_bcast_filter_iterator, &iter_data);
1803
de06a59e
EP		 1804 return true;
1805}
34672bb3
EP		 1806
1807static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1808{
1809 struct iwl_bcast_filter_cmd cmd;
1810
1811 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1812 return 0;
1813
1814 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1815 return 0;
1816
a1022927 1817 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1818 sizeof(cmd), &cmd);
1819}
1820#else
34672bb3 1821static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1822{
1823 return 0;
1824}
1825#endif
1826
a07a8f37
SS		 1827static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1828 struct ieee80211_vif *vif)
1829{
1830 struct iwl_mu_group_mgmt_cmd cmd = {};
1831
1832 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1833 WLAN_MEMBERSHIP_LEN);
1834 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1835 WLAN_USER_POSITION_LEN);
1836
1837 return iwl_mvm_send_cmd_pdu(mvm,
1838 WIDE_ID(DATA_PATH_GROUP,
1839 UPDATE_MU_GROUPS_CMD),
1840 0, sizeof(cmd), &cmd);
1841}
1842
f92659a1
SS		 1843static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1844 struct ieee80211_vif *vif)
1845{
1846 if (vif->mu_mimo_owner) {
1847 struct iwl_mu_group_mgmt_notif *notif = _data;
1848
1849 /*
1850 * MU-MIMO Group Id action frame is little endian. We treat
1851 * the data received from firmware as if it came from the
1852 * action frame, so no conversion is needed.
1853 */
1854 ieee80211_update_mu_groups(vif,
1855 (u8 *)&notif->membership_status,
1856 (u8 *)&notif->user_position);
1857 }
1858}
1859
1860void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1861 struct iwl_rx_cmd_buffer *rxb)
1862{
1863 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1864 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1865
1866 ieee80211_iterate_active_interfaces_atomic(
1867 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1868 iwl_mvm_mu_mimo_iface_iterator, notif);
1869}
1870
8ca151b5
JB		 1871static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1872 struct ieee80211_vif *vif,
1873 struct ieee80211_bss_conf *bss_conf,
1874 u32 changes)
1875{
1876 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1877 int ret;
1878
6e97b0d2
IP		 1879 /*
1880 * Re-calculate the tsf id, as the master-slave relations depend on the
1881 * beacon interval, which was not known when the station interface was
1882 * added.
1883 */
1884 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1885 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1886
3dfd3a97
JB		 1887 /*
1888 * If we're not associated yet, take the (new) BSSID before associating
1889 * so the firmware knows. If we're already associated, then use the old
1890 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1891 * branch for disassociation below.
1892 */
1893 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1894 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1895
1896 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1897 if (ret)
1898 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1899
3dfd3a97
JB		 1900 /* after sending it once, adopt mac80211 data */
1901 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1902 mvmvif->associated = bss_conf->assoc;
1903
8ca151b5
JB		 1904 if (changes & BSS_CHANGED_ASSOC) {
1905 if (bss_conf->assoc) {
33cef925
JB		 1906 /* clear statistics to get clean beacon counter */
1907 iwl_mvm_request_statistics(mvm, true);
1908 memset(&mvmvif->beacon_stats, 0,
1909 sizeof(mvmvif->beacon_stats));
1910
8ca151b5 1911 /* add quota for this interface */
7754ae79 1912 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1913 if (ret) {
1914 IWL_ERR(mvm, "failed to update quotas\n");
1915 return;
1916 }
016d27e1
JB		 1917
1918 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1919 &mvm->status)) {
1920 /*
1921 * If we're restarting then the firmware will
1922 * obviously have lost synchronisation with
1923 * the AP. It will attempt to synchronise by
1924 * itself, but we can make it more reliable by
1925 * scheduling a session protection time event.
1926 *
1927 * The firmware needs to receive a beacon to
1928 * catch up with synchronisation, use 110% of
1929 * the beacon interval.
1930 *
1931 * Set a large maximum delay to allow for more
1932 * than a single interface.
1933 */
1934 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1935 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1936 5 * dur, false);
016d27e1 1937 }
1f3b0ff8
LE		 1938
1939 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1940 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1941 if (vif->p2p) {
29a90a49 1942 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1943 iwl_mvm_update_smps(mvm, vif,
1944 IWL_MVM_SMPS_REQ_PROT,
1945 IEEE80211_SMPS_DYNAMIC);
1946 }
0ae98812 1947 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE		 1948 /*
1949 * If update fails - SF might be running in associated
1950 * mode while disassociated - which is forbidden.
1951 */
1952 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1953 "Failed to update SF upon disassociation\n");
1954
6b28f978
EG		 1955 /*
1956 * If we get an assert during the connection (after the
1957 * station has been added, but before the vif is set
1958 * to associated), mac80211 will re-add the station and
1959 * then configure the vif. Since the vif is not
1960 * associated, we would remove the station here and
1961 * this would fail the recovery.
1962 */
1963 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1964 &mvm->status)) {
1965 /*
1966 * Remove AP station now that
1967 * the MAC is unassoc
1968 */
1969 ret = iwl_mvm_rm_sta_id(mvm, vif,
1970 mvmvif->ap_sta_id);
1971 if (ret)
1972 IWL_ERR(mvm,
1973 "failed to remove AP station\n");
1974
1975 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1976 mvm->d0i3_ap_sta_id =
1977 IWL_MVM_INVALID_STA;
1978 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1979 }
37577fe2 1980
8ca151b5 1981 /* remove quota for this interface */
7754ae79 1982 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1983 if (ret)
1984 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1985
1986 if (vif->p2p)
1987 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1988
1989 /* this will take the cleared BSSID from bss_conf */
1990 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1991 if (ret)
1992 IWL_ERR(mvm,
1993 "failed to update MAC %pM (clear after unassoc)\n",
1994 vif->addr);
8ca151b5 1995 }
a20fd398 1996
a07a8f37
SS		 1997 /*
1998 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1999 * However, on HW restart we should restore this data.
a07a8f37
SS		 2000 */
2001 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 2002 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 2003 ret = iwl_mvm_update_mu_groups(mvm, vif);
2004 if (ret)
2005 IWL_ERR(mvm,
2006 "failed to update VHT MU_MIMO groups\n");
2007 }
2008
e59647ea 2009 iwl_mvm_recalc_multicast(mvm);
34672bb3 2010 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2011
a20fd398
AO		 2012 /* reset rssi values */
2013 mvmvif->bf_data.ave_beacon_signal = 0;
2014
8e484f0b 2015 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2016 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2017 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2018 if (fw_has_capa(&mvm->fw->ucode_capa,
2019 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2020 iwl_mvm_config_scan(mvm);
b45242c9
AS		 2021 }
2022
2023 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2024 /*
b45242c9 2025 * We received a beacon from the associated AP so
210a544e
JB		 2026 * remove the session protection.
2027 */
3edfb5f4 2028 iwl_mvm_stop_session_protection(mvm, vif);
cc87d322 2029
cc87d322
EH		 2030 iwl_mvm_sf_update(mvm, vif, false);
2031 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2032 }
2033
283115fb
AA		 2034 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2035 /*
2036 * Send power command on every beacon change,
2037 * because we may have not enabled beacon abort yet.
2038 */
2039 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2040 ret = iwl_mvm_power_update_mac(mvm);
2041 if (ret)
2042 IWL_ERR(mvm, "failed to update power mode\n");
2043 }
2044
88f2fd73
MG		 2045 if (changes & BSS_CHANGED_TXPOWER) {
2046 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2047 bss_conf->txpower);
2048 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2049 }
a20fd398
AO		 2050
2051 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2052 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2053 /* reset cqm events tracking */
2054 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2055 if (mvmvif->bf_data.bf_enabled) {
2056 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2057 if (ret)
2058 IWL_ERR(mvm,
2059 "failed to update CQM thresholds\n");
2060 }
a20fd398 2061 }
2ee8f021
EP		 2062
2063 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2064 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2065 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2066 }
8ca151b5
JB		 2067}
2068
5023d966
JB		 2069static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2070 struct ieee80211_vif *vif)
8ca151b5
JB		 2071{
2072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2073 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2074 int ret;
2075
576eeee9
EP		 2076 /*
2077 * iwl_mvm_mac_ctxt_add() might read directly from the device
2078 * (the system time), so make sure it is available.
2079 */
2080 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2081 if (ret)
2082 return ret;
2083
8ca151b5
JB		 2084 mutex_lock(&mvm->mutex);
2085
2086 /* Send the beacon template */
2087 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2088 if (ret)
2089 goto out_unlock;
2090
6e97b0d2
IP		 2091 /*
2092 * Re-calculate the tsf id, as the master-slave relations depend on the
2093 * beacon interval, which was not known when the AP interface was added.
2094 */
2095 if (vif->type == NL80211_IFTYPE_AP)
2096 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2097
94939080
GG		 2098 mvmvif->ap_assoc_sta_count = 0;
2099
8ca151b5
JB		 2100 /* Add the mac context */
2101 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2102 if (ret)
2103 goto out_unlock;
2104
2105 /* Perform the binding */
2106 ret = iwl_mvm_binding_add_vif(mvm, vif);
2107 if (ret)
2108 goto out_remove;
2109
63dd5d02
SS		 2110 /*
2111 * This is not very nice, but the simplest:
2112 * For older FWs adding the mcast sta before the bcast station may
2113 * cause assert 0x2b00.
2114 * This is fixed in later FW so make the order of removal depend on
2115 * the TLV
2116 */
2117 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2118 ret = iwl_mvm_add_mcast_sta(mvm, vif);
2119 if (ret)
2120 goto out_unbind;
2121 /*
2122 * Send the bcast station. At this stage the TBTT and DTIM time
2123 * events are added and applied to the scheduler
2124 */
2125 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2126 if (ret) {
2127 iwl_mvm_rm_mcast_sta(mvm, vif);
2128 goto out_unbind;
2129 }
2130 } else {
2131 /*
2132 * Send the bcast station. At this stage the TBTT and DTIM time
2133 * events are added and applied to the scheduler
2134 */
75fd4fec 2135 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
63dd5d02
SS		 2136 if (ret)
2137 goto out_unbind;
75fd4fec 2138 ret = iwl_mvm_add_mcast_sta(mvm, vif);
63dd5d02
SS		 2139 if (ret) {
2140 iwl_mvm_send_rm_bcast_sta(mvm, vif);
2141 goto out_unbind;
2142 }
2143 }
26d6c16b 2144
5691e218
IP		 2145 /* must be set before quota calculations */
2146 mvmvif->ap_ibss_active = true;
2147
a11e144e 2148 /* power updated needs to be done before quotas */
999609f1 2149 iwl_mvm_power_update_mac(mvm);
a11e144e 2150
7754ae79 2151 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2152 if (ret)
a11e144e 2153 goto out_quota_failed;
8ca151b5 2154
5023d966 2155 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2156 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2157 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2158
29a90a49
EP		 2159 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2160
8e484f0b 2161 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2162
f697267f
AN		 2163 /* we don't support TDLS during DCM */
2164 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2165 iwl_mvm_teardown_tdls_peers(mvm);
2166
939e4904 2167 goto out_unlock;
8ca151b5 2168
a11e144e 2169out_quota_failed:
999609f1 2170 iwl_mvm_power_update_mac(mvm);
5691e218 2171 mvmvif->ap_ibss_active = false;
013290aa 2172 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26 2173 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB		 2174out_unbind:
2175 iwl_mvm_binding_remove_vif(mvm, vif);
2176out_remove:
2177 iwl_mvm_mac_ctxt_remove(mvm, vif);
2178out_unlock:
2179 mutex_unlock(&mvm->mutex);
576eeee9 2180 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2181 return ret;
2182}
2183
5023d966
JB		 2184static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2185 struct ieee80211_vif *vif)
8ca151b5
JB		 2186{
2187 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2188 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2189
38a12b5b
JB		 2190 iwl_mvm_prepare_mac_removal(mvm, vif);
2191
8ca151b5
JB		 2192 mutex_lock(&mvm->mutex);
2193
664322fa 2194 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2195 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2196 iwl_mvm_remove_time_event(mvm, mvmvif,
2197 &mvmvif->time_event_data);
664322fa 2198 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2199 mvmvif->csa_countdown = false;
7f0a7c67 2200 }
664322fa 2201
003e5236
AO		 2202 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2203 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2204 mvm->csa_tx_block_bcn_timeout = 0;
2205 }
2206
5023d966 2207 mvmvif->ap_ibss_active = false;
1c87bbad 2208 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2209
8e484f0b 2210 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2211
29a90a49
EP		 2212 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2213
5023d966 2214 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2215 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2216 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2217
7754ae79 2218 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS		 2219
2220 /*
2221 * This is not very nice, but the simplest:
2222 * For older FWs removing the mcast sta before the bcast station may
2223 * cause assert 0x2b00.
2224 * This is fixed in later FW (which will stop beaconing when removing
2225 * bcast station).
2226 * So make the order of removal depend on the TLV
2227 */
2228 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2229 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2230 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2231 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2232 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2233 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2234
999609f1 2235 iwl_mvm_power_update_mac(mvm);
a11e144e 2236
8ca151b5
JB		 2237 iwl_mvm_mac_ctxt_remove(mvm, vif);
2238
2239 mutex_unlock(&mvm->mutex);
2240}
2241
5023d966
JB		 2242static void
2243iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2244 struct ieee80211_vif *vif,
2245 struct ieee80211_bss_conf *bss_conf,
2246 u32 changes)
8ca151b5 2247{
be2056fc 2248 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2249
be2056fc
IP		 2250 /* Changes will be applied when the AP/IBSS is started */
2251 if (!mvmvif->ap_ibss_active)
2252 return;
2253
863230da 2254 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2255 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2256 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2257 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2258
8ca151b5 2259 /* Need to send a new beacon template to the FW */
863230da
JB		 2260 if (changes & BSS_CHANGED_BEACON &&
2261 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2262 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2263
2264 if (changes & BSS_CHANGED_TXPOWER) {
2265 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2266 bss_conf->txpower);
2267 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2268 }
8ca151b5
JB		 2269}
2270
2271static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif,
2273 struct ieee80211_bss_conf *bss_conf,
2274 u32 changes)
2275{
2276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2277
576eeee9
EP		 2278 /*
2279 * iwl_mvm_bss_info_changed_station() might call
2280 * iwl_mvm_protect_session(), which reads directly from
2281 * the device (the system time), so make sure it is available.
2282 */
2283 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2284 return;
2285
8ca151b5
JB		 2286 mutex_lock(&mvm->mutex);
2287
723f02ed 2288 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2289 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2290
8ca151b5
JB		 2291 switch (vif->type) {
2292 case NL80211_IFTYPE_STATION:
2293 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2294 break;
2295 case NL80211_IFTYPE_AP:
5023d966
JB		 2296 case NL80211_IFTYPE_ADHOC:
2297 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2298 break;
91b08c2d
AE		 2299 case NL80211_IFTYPE_MONITOR:
2300 if (changes & BSS_CHANGED_MU_GROUPS)
2301 iwl_mvm_update_mu_groups(mvm, vif);
2302 break;
8ca151b5
JB		 2303 default:
2304 /* shouldn't happen */
2305 WARN_ON_ONCE(1);
2306 }
2307
2308 mutex_unlock(&mvm->mutex);
576eeee9 2309 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2310}
2311
2312static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2313 struct ieee80211_vif *vif,
c56ef672 2314 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2315{
2316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2317 int ret;
2318
6749dd80
LC		 2319 if (hw_req->req.n_channels == 0 ||
2320 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2321 return -EINVAL;
2322
2323 mutex_lock(&mvm->mutex);
6749dd80 2324 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2325 mutex_unlock(&mvm->mutex);
6749dd80 2326
8ca151b5
JB		 2327 return ret;
2328}
2329
2330static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2331 struct ieee80211_vif *vif)
2332{
2333 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2334
2335 mutex_lock(&mvm->mutex);
2336
e7d3abab
LC		 2337 /* Due to a race condition, it's possible that mac80211 asks
2338 * us to stop a hw_scan when it's already stopped. This can
2339 * happen, for instance, if we stopped the scan ourselves,
2340 * called ieee80211_scan_completed() and the userspace called
2341 * cancel scan scan before ieee80211_scan_work() could run.
2342 * To handle that, simply return if the scan is not running.
2343 */
262888fc 2344 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2345 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2346
2347 mutex_unlock(&mvm->mutex);
2348}
2349
2350static void
2351iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2352 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2353 int num_frames,
2354 enum ieee80211_frame_release_type reason,
2355 bool more_data)
2356{
2357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2358
3e56eadf 2359 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2360
3e56eadf
JB		 2361 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2362 tids, more_data, false);
2363}
2364
2365static void
2366iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2367 struct ieee80211_sta *sta, u16 tids,
2368 int num_frames,
2369 enum ieee80211_frame_release_type reason,
2370 bool more_data)
2371{
2372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2373
9a3fcf91 2374 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB		 2375
2376 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2377 tids, more_data, true);
8ca151b5
JB		 2378}
2379
65e25482
JB		 2380static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2381 enum sta_notify_cmd cmd,
2382 struct ieee80211_sta *sta)
8ca151b5
JB		 2383{
2384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2385 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2386 unsigned long txqs = 0, tids = 0;
3e56eadf 2387 int tid;
8ca151b5 2388
960f864b
JB		 2389 /*
2390 * If we have TVQM then we get too high queue numbers - luckily
2391 * we really shouldn't get here with that because such hardware
2392 * should have firmware supporting buffer station offload.
2393 */
2394 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2395 return;
2396
c22b0ff5
EG		 2397 spin_lock_bh(&mvmsta->lock);
2398 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2399 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2400
6862fcee 2401 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS		 2402 continue;
2403
c22b0ff5
EG		 2404 __set_bit(tid_data->txq_id, &txqs);
2405
dd32162d 2406 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG		 2407 continue;
2408
2409 __set_bit(tid, &tids);
2410 }
2411
8ca151b5
JB		 2412 switch (cmd) {
2413 case STA_NOTIFY_SLEEP:
c22b0ff5 2414 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2415 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2416
2417 if (txqs)
2418 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2419 /*
2420 * The fw updates the STA to be asleep. Tx packets on the Tx
2421 * queues to this station will not be transmitted. The fw will
2422 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2423 */
2424 break;
2425 case STA_NOTIFY_AWAKE:
0ae98812 2426 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2427 break;
c22b0ff5
EG		 2428
2429 if (txqs)
2430 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2431 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2432 break;
2433 default:
2434 break;
2435 }
c22b0ff5 2436 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2437}
2438
65e25482
JB		 2439static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2440 struct ieee80211_vif *vif,
2441 enum sta_notify_cmd cmd,
2442 struct ieee80211_sta *sta)
2443{
2444 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2445}
2446
2447void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2448{
2449 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2450 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2451 struct ieee80211_sta *sta;
2452 struct iwl_mvm_sta *mvmsta;
2453 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2454
2455 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2456 return;
2457
2458 rcu_read_lock();
a9560029 2459 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB		 2460 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2461 rcu_read_unlock();
2462 return;
2463 }
2464
2465 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2466
2467 if (!mvmsta->vif ||
2468 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2469 rcu_read_unlock();
2470 return;
2471 }
2472
2473 if (mvmsta->sleeping != sleeping) {
2474 mvmsta->sleeping = sleeping;
2475 __iwl_mvm_mac_sta_notify(mvm->hw,
2476 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2477 sta);
2478 ieee80211_sta_ps_transition(sta, sleeping);
2479 }
2480
2481 if (sleeping) {
2482 switch (notif->type) {
2483 case IWL_MVM_PM_EVENT_AWAKE:
2484 case IWL_MVM_PM_EVENT_ASLEEP:
2485 break;
2486 case IWL_MVM_PM_EVENT_UAPSD:
2487 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2488 break;
2489 case IWL_MVM_PM_EVENT_PS_POLL:
2490 ieee80211_sta_pspoll(sta);
2491 break;
2492 default:
2493 break;
2494 }
2495 }
2496
2497 rcu_read_unlock();
2498}
2499
1ddbbb0c
JB		 2500static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2501 struct ieee80211_vif *vif,
2502 struct ieee80211_sta *sta)
2503{
2504 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2505 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2506
2507 /*
2508 * This is called before mac80211 does RCU synchronisation,
2509 * so here we already invalidate our internal RCU-protected
2510 * station pointer. The rest of the code will thus no longer
2511 * be able to find the station this way, and we don't rely
2512 * on further RCU synchronisation after the sta_state()
2513 * callback deleted the station.
2514 */
2515 mutex_lock(&mvm->mutex);
2516 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2517 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2518 ERR_PTR(-ENOENT));
94939080 2519
1ddbbb0c
JB		 2520 mutex_unlock(&mvm->mutex);
2521}
2522
bd1ba664
JB		 2523static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2524 const u8 *bssid)
2525{
2526 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2527 return;
2528
c5241b0c 2529 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2530 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2531 return;
2532 }
2533
11dee0b4
EG		 2534 if (!vif->p2p &&
2535 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2536 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2537 return;
2538 }
2539
2540 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2541}
2542
1e8f1329
GBA		 2543static void
2544iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2545 struct ieee80211_vif *vif, u8 *peer_addr,
2546 enum nl80211_tdls_operation action)
2547{
2548 struct iwl_fw_dbg_trigger_tlv *trig;
2549 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2550
2551 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2552 return;
2553
2554 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2555 tdls_trig = (void *)trig->data;
7174beb6
JB		 2556 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2557 ieee80211_vif_to_wdev(vif), trig))
1e8f1329
GBA		 2558 return;
2559
2560 if (!(tdls_trig->action_bitmap & BIT(action)))
2561 return;
2562
2563 if (tdls_trig->peer_mode &&
2564 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2565 return;
2566
7174beb6
JB		 2567 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2568 "TDLS event occurred, peer %pM, action %d",
2569 peer_addr, action);
1e8f1329
GBA		 2570}
2571
24afba76
LK		 2572static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2573 struct iwl_mvm_sta *mvm_sta)
2574{
2575 struct iwl_mvm_tid_data *tid_data;
2576 struct sk_buff *skb;
2577 int i;
2578
2579 spin_lock_bh(&mvm_sta->lock);
2580 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2581 tid_data = &mvm_sta->tid_data[i];
7e39a00d
AS		 2582
2583 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2584 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2585
2586 /*
2587 * The first deferred frame should've stopped the MAC
2588 * queues, so we should never get a second deferred
2589 * frame for the RA/TID.
2590 */
8458e48a 2591 iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
24afba76 2592 ieee80211_free_txskb(mvm->hw, skb);
7e39a00d 2593 }
24afba76
LK		 2594 }
2595 spin_unlock_bh(&mvm_sta->lock);
2596}
2597
8ca151b5
JB		 2598static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2599 struct ieee80211_vif *vif,
2600 struct ieee80211_sta *sta,
2601 enum ieee80211_sta_state old_state,
2602 enum ieee80211_sta_state new_state)
2603{
2604 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2605 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2606 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 2607 int ret;
2608
2609 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2610 sta->addr, old_state, new_state);
2611
2612 /* this would be a mac80211 bug ... but don't crash */
2613 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2614 return -EINVAL;
2615
24afba76
LK		 2616 /*
2617 * If we are in a STA removal flow and in DQA mode:
2618 *
2619 * This is after the sync_rcu part, so the queues have already been
2620 * flushed. No more TXs on their way in mac80211's path, and no more in
2621 * the queues.
2622 * Also, we won't be getting any new TX frames for this station.
2623 * What we might have are deferred TX frames that need to be taken care
2624 * of.
2625 *
2626 * Drop any still-queued deferred-frame before removing the STA, and
2627 * make sure the worker is no longer handling frames for this STA.
2628 */
2629 if (old_state == IEEE80211_STA_NONE &&
c8f54701 2630 new_state == IEEE80211_STA_NOTEXIST) {
24afba76
LK		 2631 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2632 flush_work(&mvm->add_stream_wk);
2633
2634 /*
2635 * No need to make sure deferred TX indication is off since the
2636 * worker will already remove it if it was on
2637 */
2638 }
2639
8ca151b5 2640 mutex_lock(&mvm->mutex);
6ea29ce5
JB		 2641 /* track whether or not the station is associated */
2642 mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2643
8ca151b5
JB		 2644 if (old_state == IEEE80211_STA_NOTEXIST &&
2645 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2646 /*
2647 * Firmware bug - it'll crash if the beacon interval is less
2648 * than 16. We can't avoid connecting at all, so refuse the
2649 * station state change, this will cause mac80211 to abandon
2650 * attempts to connect to this AP, and eventually wpa_s will
2651 * blacklist the AP...
2652 */
2653 if (vif->type == NL80211_IFTYPE_STATION &&
2654 vif->bss_conf.beacon_int < 16) {
2655 IWL_ERR(mvm,
2656 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2657 sta->addr, vif->bss_conf.beacon_int);
2658 ret = -EINVAL;
2659 goto out_unlock;
2660 }
cf7b491d
AN		 2661
2662 if (sta->tdls &&
2663 (vif->p2p ||
fa3d07e4
AN		 2664 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2665 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2666 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2667 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2668 ret = -EBUSY;
2669 goto out_unlock;
2670 }
2671
8ca151b5 2672 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2673 if (sta->tdls && ret == 0) {
fa3d07e4 2674 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2675 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2676 NL80211_TDLS_SETUP);
2677 }
8ca151b5
JB		 2678 } else if (old_state == IEEE80211_STA_NONE &&
2679 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2680 /*
2681 * EBS may be disabled due to previous failures reported by FW.
2682 * Reset EBS status here assuming environment has been changed.
2683 */
2684 mvm->last_ebs_successful = true;
bd1ba664 2685 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2686 ret = 0;
2687 } else if (old_state == IEEE80211_STA_AUTH &&
2688 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2689 if (vif->type == NL80211_IFTYPE_AP) {
2690 mvmvif->ap_assoc_sta_count++;
2691 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2692 }
735a0045
GM		 2693
2694 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2695 true);
7a453973 2696 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB		 2697 } else if (old_state == IEEE80211_STA_ASSOC &&
2698 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2699
2700 /* we don't support TDLS during DCM */
2701 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2702 iwl_mvm_teardown_tdls_peers(mvm);
2703
1e8f1329
GBA		 2704 if (sta->tdls)
2705 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2706 NL80211_TDLS_ENABLE_LINK);
2707
7df15b1e 2708 /* enable beacon filtering */
fa7b2e7f 2709 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
6b7a5aea
NG		 2710
2711 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2712 false);
2713
8ca151b5
JB		 2714 ret = 0;
2715 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2716 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2717 /* disable beacon filtering */
a1022927 2718 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2719 ret = 0;
2720 } else if (old_state == IEEE80211_STA_ASSOC &&
2721 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2722 if (vif->type == NL80211_IFTYPE_AP) {
2723 mvmvif->ap_assoc_sta_count--;
2724 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2725 }
8ca151b5
JB		 2726 ret = 0;
2727 } else if (old_state == IEEE80211_STA_AUTH &&
2728 new_state == IEEE80211_STA_NONE) {
2729 ret = 0;
2730 } else if (old_state == IEEE80211_STA_NONE &&
2731 new_state == IEEE80211_STA_NOTEXIST) {
2732 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2733 if (sta->tdls) {
fa3d07e4 2734 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2735 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2736 NL80211_TDLS_DISABLE_LINK);
2737 }
8ca151b5
JB		 2738 } else {
2739 ret = -EIO;
2740 }
48bc1307 2741 out_unlock:
8ca151b5
JB		 2742 mutex_unlock(&mvm->mutex);
2743
9c126cd6
LK		 2744 if (sta->tdls && ret == 0) {
2745 if (old_state == IEEE80211_STA_NOTEXIST &&
2746 new_state == IEEE80211_STA_NONE)
2747 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2748 else if (old_state == IEEE80211_STA_NONE &&
2749 new_state == IEEE80211_STA_NOTEXIST)
2750 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2751 }
2752
8ca151b5
JB		 2753 return ret;
2754}
2755
2756static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2757{
2758 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2759
2760 mvm->rts_threshold = value;
2761
2762 return 0;
2763}
2764
1f3b0ff8
LE		 2765static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2766 struct ieee80211_vif *vif,
2767 struct ieee80211_sta *sta, u32 changed)
2768{
2769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2770
2771 if (vif->type == NL80211_IFTYPE_STATION &&
2772 changed & IEEE80211_RC_NSS_CHANGED)
2773 iwl_mvm_sf_update(mvm, vif, false);
2774}
2775
8ca151b5
JB		 2776static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2777 struct ieee80211_vif *vif, u16 ac,
2778 const struct ieee80211_tx_queue_params *params)
2779{
2780 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2781 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2782
2783 mvmvif->queue_params[ac] = *params;
2784
2785 /*
2786 * No need to update right away, we'll get BSS_CHANGED_QOS
2787 * The exception is P2P_DEVICE interface which needs immediate update.
2788 */
2789 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2790 int ret;
2791
2792 mutex_lock(&mvm->mutex);
3dfd3a97 2793 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2794 mutex_unlock(&mvm->mutex);
2795 return ret;
2796 }
2797 return 0;
2798}
2799
2800static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2801 struct ieee80211_vif *vif)
2802{
2803 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2804 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2805 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2806
2807 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2808 return;
2809
576eeee9
EP		 2810 /*
2811 * iwl_mvm_protect_session() reads directly from the device
2812 * (the system time), so make sure it is available.
2813 */
2814 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2815 return;
2816
8ca151b5
JB		 2817 mutex_lock(&mvm->mutex);
2818 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2819 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2820 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2821
2822 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2823}
2824
35a000b7
DS		 2825static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2826 struct ieee80211_vif *vif,
2827 struct cfg80211_sched_scan_request *req,
633e2713 2828 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2829{
2830 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2831
35a000b7 2832 int ret;
4660dfbb 2833
35a000b7
DS		 2834 mutex_lock(&mvm->mutex);
2835
1f940386 2836 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2837 ret = -EBUSY;
2838 goto out;
2839 }
2840
19945dfb 2841 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2842
35a000b7
DS		 2843out:
2844 mutex_unlock(&mvm->mutex);
2845 return ret;
2846}
2847
37e3308c
JB		 2848static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2849 struct ieee80211_vif *vif)
35a000b7
DS		 2850{
2851 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2852 int ret;
35a000b7
DS		 2853
2854 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2855
2856 /* Due to a race condition, it's possible that mac80211 asks
2857 * us to stop a sched_scan when it's already stopped. This
2858 * can happen, for instance, if we stopped the scan ourselves,
2859 * called ieee80211_sched_scan_stopped() and the userspace called
2860 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2861 * could run. To handle this, simply return if the scan is
2862 * not running.
2863 */
262888fc 2864 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2865 mutex_unlock(&mvm->mutex);
2866 return 0;
2867 }
2868
c7d42480 2869 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2870 mutex_unlock(&mvm->mutex);
33ea27f6 2871 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2872
33ea27f6 2873 return ret;
35a000b7
DS		 2874}
2875
8ca151b5
JB		 2876static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2877 enum set_key_cmd cmd,
2878 struct ieee80211_vif *vif,
2879 struct ieee80211_sta *sta,
2880 struct ieee80211_key_conf *key)
2881{
2882 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2883 struct iwl_mvm_sta *mvmsta;
2884 struct iwl_mvm_key_pn *ptk_pn;
2885 int keyidx = key->keyidx;
8ca151b5 2886 int ret;
d6ee54a9 2887 u8 key_offset;
8ca151b5 2888
3b37f4c9 2889 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 2890 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2891 return -EOPNOTSUPP;
2892 }
2893
2894 switch (key->cipher) {
2895 case WLAN_CIPHER_SUITE_TKIP:
2896 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2897 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2898 break;
ca8c0f4b 2899 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2900 case WLAN_CIPHER_SUITE_GCMP:
2901 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS		 2902 if (!iwl_mvm_has_new_tx_api(mvm))
2903 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 2904 break;
8ca151b5 2905 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2906 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2907 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2908 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2909 break;
2910 case WLAN_CIPHER_SUITE_WEP40:
2911 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2912 /* For non-client mode, only use WEP keys for TX as we probably
2913 * don't have a station yet anyway and would then have to keep
2914 * track of the keys, linking them to each of the clients/peers
2915 * as they appear. For now, don't do that, for performance WEP
2916 * offload doesn't really matter much, but we need it for some
2917 * other offload features in client mode.
8ca151b5 2918 */
ba3943b0
JB		 2919 if (vif->type != NL80211_IFTYPE_STATION)
2920 return 0;
2921 break;
8ca151b5 2922 default:
e36e5433
MS		 2923 /* currently FW supports only one optional cipher scheme */
2924 if (hw->n_cipher_schemes &&
2925 hw->cipher_schemes->cipher == key->cipher)
2926 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2927 else
2928 return -EOPNOTSUPP;
8ca151b5
JB		 2929 }
2930
2931 mutex_lock(&mvm->mutex);
2932
2933 switch (cmd) {
2934 case SET_KEY:
5023d966
JB		 2935 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2936 vif->type == NL80211_IFTYPE_AP) && !sta) {
2937 /*
2938 * GTK on AP interface is a TX-only key, return 0;
2939 * on IBSS they're per-station and because we're lazy
2940 * we don't support them for RX, so do the same.
8e160ab8 2941 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2942 */
8e160ab8
AB		 2943 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2944 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2945 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2946 ret = -EOPNOTSUPP;
2947 else
2948 ret = 0;
85aeb58c
DS		 2949
2950 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2951 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2952 !iwl_mvm_has_new_tx_api(mvm)) {
2953 key->hw_key_idx = STA_KEY_IDX_INVALID;
2954 break;
2955 }
6caffd4f
JB		 2956 }
2957
b546dcd6
JB		 2958 /* During FW restart, in order to restore the state as it was,
2959 * don't try to reprogram keys we previously failed for.
2960 */
2961 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2962 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2963 IWL_DEBUG_MAC80211(mvm,
2964 "skip invalid idx key programming during restart\n");
2965 ret = 0;
2966 break;
2967 }
2968
f5e28eac
JB		 2969 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2970 sta && iwl_mvm_has_new_rx_api(mvm) &&
2971 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2972 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2973 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2974 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2975 struct ieee80211_key_seq seq;
2976 int tid, q;
2977
2978 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2979 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2980 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2981 mvm->trans->num_rx_queues *
2982 sizeof(ptk_pn->q[0]),
2983 GFP_KERNEL);
2984 if (!ptk_pn) {
2985 ret = -ENOMEM;
2986 break;
2987 }
2988
2989 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2990 ieee80211_get_key_rx_seq(key, tid, &seq);
2991 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2992 memcpy(ptk_pn->q[q].pn[tid],
2993 seq.ccmp.pn,
2994 IEEE80211_CCMP_PN_LEN);
2995 }
2996
2997 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2998 }
2999
d6ee54a9
LC		 3000 /* in HW restart reuse the index, otherwise request a new one */
3001 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3002 key_offset = key->hw_key_idx;
3003 else
3004 key_offset = STA_KEY_IDX_INVALID;
3005
8ca151b5 3006 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 3007 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 3008 if (ret) {
3009 IWL_WARN(mvm, "set key failed\n");
3010 /*
3011 * can't add key for RX, but we don't need it
3012 * in the device for TX so still return 0
3013 */
6caffd4f 3014 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 3015 ret = 0;
3016 }
3017
3018 break;
3019 case DISABLE_KEY:
6caffd4f
JB		 3020 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3021 ret = 0;
3022 break;
3023 }
3024
f5e28eac
JB		 3025 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3026 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3027 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 3028 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3029 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 3030 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3031 ptk_pn = rcu_dereference_protected(
3032 mvmsta->ptk_pn[keyidx],
3033 lockdep_is_held(&mvm->mutex));
3034 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3035 if (ptk_pn)
3036 kfree_rcu(ptk_pn, rcu_head);
3037 }
3038
8ca151b5
JB		 3039 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3040 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3041 break;
3042 default:
3043 ret = -EINVAL;
3044 }
3045
3046 mutex_unlock(&mvm->mutex);
3047 return ret;
3048}
3049
3050static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3051 struct ieee80211_vif *vif,
3052 struct ieee80211_key_conf *keyconf,
3053 struct ieee80211_sta *sta,
3054 u32 iv32, u16 *phase1key)
3055{
3056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3057
5023d966
JB		 3058 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3059 return;
3060
8ca151b5
JB		 3061 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3062}
3063
3064
b112889c
AM		 3065static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3066 struct iwl_rx_packet *pkt, void *data)
3067{
3068 struct iwl_mvm *mvm =
3069 container_of(notif_wait, struct iwl_mvm, notif_wait);
3070 struct iwl_hs20_roc_res *resp;
3071 int resp_len = iwl_rx_packet_payload_len(pkt);
3072 struct iwl_mvm_time_event_data *te_data = data;
3073
3074 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3075 return true;
3076
3077 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3078 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3079 return true;
3080 }
3081
3082 resp = (void *)pkt->data;
3083
3084 IWL_DEBUG_TE(mvm,
3085 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3086 resp->status, resp->event_unique_id);
3087
3088 te_data->uid = le32_to_cpu(resp->event_unique_id);
3089 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3090 te_data->uid);
3091
3092 spin_lock_bh(&mvm->time_event_lock);
3093 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3094 spin_unlock_bh(&mvm->time_event_lock);
3095
3096 return true;
3097}
3098
dc28e12f
MG		 3099#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3100#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3101#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3102#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3103#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 3104static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3105 struct ieee80211_channel *channel,
3106 struct ieee80211_vif *vif,
3107 int duration)
3108{
3109 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3110 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3111 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3112 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3113 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 3114 u32 dtim_interval = vif->bss_conf.dtim_period *
3115 vif->bss_conf.beacon_int;
3116 u32 req_dur, delay;
b112889c
AM		 3117 struct iwl_hs20_roc_req aux_roc_req = {
3118 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3119 .id_and_color =
3120 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3121 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3122 /* Set the channel info data */
57fbcce3 3123 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 3124 PHY_BAND_24 : PHY_BAND_5,
3125 .channel_info.channel = channel->hw_value,
3126 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3127 /* Set the time and duration */
3128 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 3129 };
3130
dc28e12f
MG		 3131 delay = AUX_ROC_MIN_DELAY;
3132 req_dur = MSEC_TO_TU(duration);
3133
3134 /*
3135 * If we are associated we want the delay time to be at least one
3136 * dtim interval so that the FW can wait until after the DTIM and
3137 * then start the time event, this will potentially allow us to
3138 * remain off-channel for the max duration.
3139 * Since we want to use almost a whole dtim interval we would also
3140 * like the delay to be for 2-3 dtim intervals, in case there are
3141 * other time events with higher priority.
3142 */
3143 if (vif->bss_conf.assoc) {
3144 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3145 /* We cannot remain off-channel longer than the DTIM interval */
3146 if (dtim_interval <= req_dur) {
3147 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3148 if (req_dur <= AUX_ROC_MIN_DURATION)
3149 req_dur = dtim_interval -
3150 AUX_ROC_MIN_SAFETY_BUFFER;
3151 }
3152 }
3153
3154 aux_roc_req.duration = cpu_to_le32(req_dur);
3155 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3156
3157 IWL_DEBUG_TE(mvm,
3158 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3159 channel->hw_value, req_dur, duration, delay,
3160 dtim_interval);
b112889c
AM		 3161 /* Set the node address */
3162 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3163
a6cc5163
MG		 3164 lockdep_assert_held(&mvm->mutex);
3165
3166 spin_lock_bh(&mvm->time_event_lock);
3167
3168 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3169 spin_unlock_bh(&mvm->time_event_lock);
3170 return -EIO;
3171 }
3172
b112889c
AM		 3173 te_data->vif = vif;
3174 te_data->duration = duration;
3175 te_data->id = HOT_SPOT_CMD;
3176
b112889c
AM		 3177 spin_unlock_bh(&mvm->time_event_lock);
3178
3179 /*
3180 * Use a notification wait, which really just processes the
3181 * command response and doesn't wait for anything, in order
3182 * to be able to process the response and get the UID inside
3183 * the RX path. Using CMD_WANT_SKB doesn't work because it
3184 * stores the buffer and then wakes up this thread, by which
3185 * time another notification (that the time event started)
3186 * might already be processed unsuccessfully.
3187 */
3188 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3189 time_event_response,
3190 ARRAY_SIZE(time_event_response),
3191 iwl_mvm_rx_aux_roc, te_data);
3192
3193 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3194 &aux_roc_req);
3195
3196 if (res) {
3197 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3198 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3199 goto out_clear_te;
3200 }
3201
3202 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3203 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3204 /* should never fail */
3205 WARN_ON_ONCE(res);
3206
3207 if (res) {
3208 out_clear_te:
3209 spin_lock_bh(&mvm->time_event_lock);
3210 iwl_mvm_te_clear_data(mvm, te_data);
3211 spin_unlock_bh(&mvm->time_event_lock);
3212 }
3213
3214 return res;
3215}
3216
8ca151b5
JB		 3217static int iwl_mvm_roc(struct ieee80211_hw *hw,
3218 struct ieee80211_vif *vif,
3219 struct ieee80211_channel *channel,
d339d5ca
IP		 3220 int duration,
3221 enum ieee80211_roc_type type)
8ca151b5
JB		 3222{
3223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3224 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3225 struct cfg80211_chan_def chandef;
31d385ae
IP		 3226 struct iwl_mvm_phy_ctxt *phy_ctxt;
3227 int ret, i;
3228
3229 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3230 duration, type);
8ca151b5 3231
9834781c
JB		 3232 /*
3233 * Flush the done work, just in case it's still pending, so that
3234 * the work it does can complete and we can accept new frames.
3235 */
6ed13164
MG		 3236 flush_work(&mvm->roc_done_wk);
3237
a6cc5163
MG		 3238 mutex_lock(&mvm->mutex);
3239
b112889c
AM		 3240 switch (vif->type) {
3241 case NL80211_IFTYPE_STATION:
859d914c
JB		 3242 if (fw_has_capa(&mvm->fw->ucode_capa,
3243 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3244 /* Use aux roc framework (HS20) */
3245 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3246 vif, duration);
3247 goto out_unlock;
3248 }
3249 IWL_ERR(mvm, "hotspot not supported\n");
3250 ret = -EINVAL;
a6cc5163 3251 goto out_unlock;
b112889c
AM		 3252 case NL80211_IFTYPE_P2P_DEVICE:
3253 /* handle below */
3254 break;
3255 default:
3256 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3257 ret = -EINVAL;
3258 goto out_unlock;
8ca151b5
JB		 3259 }
3260
31d385ae
IP		 3261 for (i = 0; i < NUM_PHY_CTX; i++) {
3262 phy_ctxt = &mvm->phy_ctxts[i];
3263 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3264 continue;
3265
3266 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3267 /*
3268 * Unbind the P2P_DEVICE from the current PHY context,
3269 * and if the PHY context is not used remove it.
3270 */
3271 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3272 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3273 goto out_unlock;
3274
3275 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3276
3277 /* Bind the P2P_DEVICE to the current PHY Context */
3278 mvmvif->phy_ctxt = phy_ctxt;
3279
3280 ret = iwl_mvm_binding_add_vif(mvm, vif);
3281 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3282 goto out_unlock;
3283
3284 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3285 goto schedule_time_event;
3286 }
3287 }
3288
3289 /* Need to update the PHY context only if the ROC channel changed */
3290 if (channel == mvmvif->phy_ctxt->channel)
3291 goto schedule_time_event;
3292
8ca151b5 3293 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3294
31d385ae
IP		 3295 /*
3296 * Change the PHY context configuration as it is currently referenced
3297 * only by the P2P Device MAC
3298 */
3299 if (mvmvif->phy_ctxt->ref == 1) {
3300 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3301 &chandef, 1, 1);
3302 if (ret)
3303 goto out_unlock;
3304 } else {
3305 /*
3306 * The PHY context is shared with other MACs. Need to remove the
3307 * P2P Device from the binding, allocate an new PHY context and
3308 * create a new binding
3309 */
3310 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3311 if (!phy_ctxt) {
3312 ret = -ENOSPC;
3313 goto out_unlock;
3314 }
3315
3316 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3317 1, 1);
3318 if (ret) {
3319 IWL_ERR(mvm, "Failed to change PHY context\n");
3320 goto out_unlock;
3321 }
3322
3323 /* Unbind the P2P_DEVICE from the current PHY context */
3324 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3325 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3326 goto out_unlock;
3327
3328 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3329
3330 /* Bind the P2P_DEVICE to the new allocated PHY context */
3331 mvmvif->phy_ctxt = phy_ctxt;
3332
3333 ret = iwl_mvm_binding_add_vif(mvm, vif);
3334 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3335 goto out_unlock;
3336
3337 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3338 }
3339
3340schedule_time_event:
8ca151b5 3341 /* Schedule the time events */
e635c797 3342 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3343
31d385ae 3344out_unlock:
8ca151b5
JB		 3345 mutex_unlock(&mvm->mutex);
3346 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3347 return ret;
3348}
3349
3350static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3351{
3352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3353
3354 IWL_DEBUG_MAC80211(mvm, "enter\n");
3355
3356 mutex_lock(&mvm->mutex);
bf5da87f 3357 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3358 mutex_unlock(&mvm->mutex);
3359
3360 IWL_DEBUG_MAC80211(mvm, "leave\n");
3361 return 0;
3362}
3363
b08c1d97
LC		 3364static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3365 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3366{
fe0f2de3
IP		 3367 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3368 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3369 int ret;
3370
b08c1d97
LC		 3371 lockdep_assert_held(&mvm->mutex);
3372
53a9d61e 3373 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3374
fe0f2de3
IP		 3375 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3376 if (!phy_ctxt) {
3377 ret = -ENOSPC;
3378 goto out;
3379 }
8ca151b5 3380
dcbc3e1a 3381 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3382 ctx->rx_chains_static,
3383 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3384 if (ret) {
3385 IWL_ERR(mvm, "Failed to add PHY context\n");
3386 goto out;
3387 }
3388
53a9d61e 3389 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3390 *phy_ctxt_id = phy_ctxt->id;
3391out:
b08c1d97
LC		 3392 return ret;
3393}
3394
3395static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3396 struct ieee80211_chanctx_conf *ctx)
3397{
3398 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3399 int ret;
3400
3401 mutex_lock(&mvm->mutex);
3402 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3403 mutex_unlock(&mvm->mutex);
b08c1d97 3404
8ca151b5
JB		 3405 return ret;
3406}
3407
b08c1d97
LC		 3408static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3409 struct ieee80211_chanctx_conf *ctx)
3410{
3411 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3412 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3413
3414 lockdep_assert_held(&mvm->mutex);
3415
3416 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3417}
3418
8ca151b5
JB		 3419static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3420 struct ieee80211_chanctx_conf *ctx)
3421{
3422 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3423
3424 mutex_lock(&mvm->mutex);
b08c1d97 3425 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3426 mutex_unlock(&mvm->mutex);
3427}
3428
3429static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3430 struct ieee80211_chanctx_conf *ctx,
3431 u32 changed)
3432{
3433 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3434 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3435 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3436
31d385ae
IP		 3437 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3438 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3439 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3440 IEEE80211_CHANCTX_CHANGE_RADAR |
3441 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3442 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3443 phy_ctxt->ref, changed))
3444 return;
3445
8ca151b5 3446 mutex_lock(&mvm->mutex);
7a20bcce
EG		 3447
3448 /* we are only changing the min_width, may be a noop */
3449 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
3450 if (phy_ctxt->width == ctx->min_def.width)
3451 goto out_unlock;
3452
3453 /* we are just toggling between 20_NOHT and 20 */
3454 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
3455 ctx->min_def.width <= NL80211_CHAN_WIDTH_20)
3456 goto out_unlock;
3457 }
3458
4d66449a 3459 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3460 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3461 ctx->rx_chains_static,
3462 ctx->rx_chains_dynamic);
7a20bcce
EG		 3463
3464out_unlock:
8ca151b5
JB		 3465 mutex_unlock(&mvm->mutex);
3466}
3467
b08c1d97
LC		 3468static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3469 struct ieee80211_vif *vif,
f0c97783
LC		 3470 struct ieee80211_chanctx_conf *ctx,
3471 bool switching_chanctx)
8ca151b5 3472{
fe0f2de3
IP		 3473 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3474 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3475 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3476 int ret;
3477
b08c1d97 3478 lockdep_assert_held(&mvm->mutex);
8ca151b5 3479
fe0f2de3 3480 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3481
3482 switch (vif->type) {
3483 case NL80211_IFTYPE_AP:
4741dd04
LC		 3484 /* only needed if we're switching chanctx (i.e. during CSA) */
3485 if (switching_chanctx) {
bd3398e2
AO		 3486 mvmvif->ap_ibss_active = true;
3487 break;
3488 }
5023d966 3489 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3490 /*
3491 * The AP binding flow is handled as part of the start_ap flow
5023d966 3492 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3493 */
3494 ret = 0;
b08c1d97 3495 goto out;
8ca151b5 3496 case NL80211_IFTYPE_STATION:
19125cb0 3497 mvmvif->csa_bcn_pending = false;
2533edce 3498 break;
8ca151b5 3499 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3500 /* always disable PS when a monitor interface is active */
3501 mvmvif->ps_disabled = true;
8ca151b5
JB		 3502 break;
3503 default:
3504 ret = -EINVAL;
b08c1d97 3505 goto out;
8ca151b5
JB		 3506 }
3507
3508 ret = iwl_mvm_binding_add_vif(mvm, vif);
3509 if (ret)
b08c1d97 3510 goto out;
8ca151b5
JB		 3511
3512 /*
92d85562
AB		 3513 * Power state must be updated before quotas,
3514 * otherwise fw will complain.
3515 */
999609f1 3516 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3517
3518 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3519 * interfaces. For the other types, the bss_info changed flow
3520 * will handle quota settings.
3521 */
3522 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3523 mvmvif->monitor_active = true;
7754ae79 3524 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3525 if (ret)
3526 goto out_remove_binding;
0e39eb03
CRI		 3527
3528 ret = iwl_mvm_add_snif_sta(mvm, vif);
3529 if (ret)
3530 goto out_remove_binding;
3531
8ca151b5
JB		 3532 }
3533
bd3398e2 3534 /* Handle binding during CSA */
a57c688d 3535 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3536 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3537 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3538 }
3539
4741dd04 3540 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
19125cb0 3541 u32 duration = 3 * vif->bss_conf.beacon_int;
686e7fe1
LC		 3542
3543 /* iwl_mvm_protect_session() reads directly from the
3544 * device (the system time), so make sure it is
3545 * available.
3546 */
3547 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3548 if (ret)
3549 goto out_remove_binding;
3550
3551 /* Protect the session to make sure we hear the first
3552 * beacon on the new channel.
3553 */
19125cb0 3554 mvmvif->csa_bcn_pending = true;
686e7fe1
LC		 3555 iwl_mvm_protect_session(mvm, vif, duration, duration,
3556 vif->bss_conf.beacon_int / 2,
3557 true);
3558
3559 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3560
7754ae79 3561 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3562 }
3563
b08c1d97 3564 goto out;
8ca151b5 3565
b08c1d97 3566out_remove_binding:
8ca151b5 3567 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3568 iwl_mvm_power_update_mac(mvm);
b08c1d97 3569out:
8ca151b5
JB		 3570 if (ret)
3571 mvmvif->phy_ctxt = NULL;
3572 return ret;
3573}
b08c1d97
LC		 3574static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3575 struct ieee80211_vif *vif,
3576 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3577{
3578 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3579 int ret;
8ca151b5
JB		 3580
3581 mutex_lock(&mvm->mutex);
f0c97783 3582 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3583 mutex_unlock(&mvm->mutex);
3584
3585 return ret;
3586}
3587
3588static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3589 struct ieee80211_vif *vif,
f0c97783
LC		 3590 struct ieee80211_chanctx_conf *ctx,
3591 bool switching_chanctx)
b08c1d97
LC		 3592{
3593 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3594 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3595
3596 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3597
3598 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3599
8ca151b5 3600 switch (vif->type) {
5023d966 3601 case NL80211_IFTYPE_ADHOC:
b08c1d97 3602 goto out;
8ca151b5 3603 case NL80211_IFTYPE_MONITOR:
1e1391ca 3604 mvmvif->monitor_active = false;
2533edce 3605 mvmvif->ps_disabled = false;
0e39eb03 3606 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3607 break;
bd3398e2
AO		 3608 case NL80211_IFTYPE_AP:
3609 /* This part is triggered only during CSA */
4741dd04 3610 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3611 goto out;
bd3398e2 3612
7ef0aab6
AO		 3613 mvmvif->csa_countdown = false;
3614
003e5236
AO		 3615 /* Set CS bit on all the stations */
3616 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3617
3618 /* Save blocked iface, the timeout is set on the next beacon */
3619 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3620
bd3398e2 3621 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3622 break;
3623 case NL80211_IFTYPE_STATION:
3624 if (!switching_chanctx)
3625 break;
3626
3627 disabled_vif = vif;
3628
3dfd3a97 3629 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3630 break;
8ca151b5
JB		 3631 default:
3632 break;
3633 }
3634
7754ae79 3635 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3636 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3637
b08c1d97 3638out:
a11e144e 3639 mvmvif->phy_ctxt = NULL;
999609f1 3640 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3641}
3642
3643static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3644 struct ieee80211_vif *vif,
3645 struct ieee80211_chanctx_conf *ctx)
3646{
3647 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3648
3649 mutex_lock(&mvm->mutex);
f0c97783 3650 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3651 mutex_unlock(&mvm->mutex);
3652}
3653
50cc9574
LC		 3654static int
3655iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3656 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3657{
b08c1d97
LC		 3658 int ret;
3659
b08c1d97 3660 mutex_lock(&mvm->mutex);
f0c97783 3661 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3662 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3663
3664 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3665 if (ret) {
3666 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3667 goto out_reassign;
3668 }
3669
f0c97783
LC		 3670 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3671 true);
b08c1d97
LC		 3672 if (ret) {
3673 IWL_ERR(mvm,
3674 "failed to assign new_ctx during channel switch\n");
3675 goto out_remove;
3676 }
3677
f697267f
AN		 3678 /* we don't support TDLS during DCM - can be caused by channel switch */
3679 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3680 iwl_mvm_teardown_tdls_peers(mvm);
3681
b08c1d97
LC		 3682 goto out;
3683
3684out_remove:
3685 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3686
3687out_reassign:
6fd1fb63 3688 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3689 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3690 goto out_restart;
3691 }
3692
6fd1fb63
LC		 3693 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3694 true)) {
b08c1d97
LC		 3695 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3696 goto out_restart;
3697 }
3698
3699 goto out;
3700
3701out_restart:
3702 /* things keep failing, better restart the hw */
3703 iwl_mvm_nic_restart(mvm, false);
3704
3705out:
3706 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3707
3708 return ret;
3709}
3710
48a256e8
LC		 3711static int
3712iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3713 struct ieee80211_vif_chanctx_switch *vifs)
3714{
3715 int ret;
3716
3717 mutex_lock(&mvm->mutex);
3718 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3719
3720 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3721 true);
3722 if (ret) {
3723 IWL_ERR(mvm,
3724 "failed to assign new_ctx during channel switch\n");
3725 goto out_reassign;
3726 }
3727
3728 goto out;
3729
3730out_reassign:
3731 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3732 true)) {
3733 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3734 goto out_restart;
3735 }
3736
3737 goto out;
3738
3739out_restart:
3740 /* things keep failing, better restart the hw */
3741 iwl_mvm_nic_restart(mvm, false);
3742
3743out:
3744 mutex_unlock(&mvm->mutex);
3745
3746 return ret;
3747}
3748
50cc9574
LC		 3749static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3750 struct ieee80211_vif_chanctx_switch *vifs,
3751 int n_vifs,
3752 enum ieee80211_chanctx_switch_mode mode)
3753{
3754 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3755 int ret;
3756
3757 /* we only support a single-vif right now */
3758 if (n_vifs > 1)
3759 return -EOPNOTSUPP;
3760
3761 switch (mode) {
3762 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3763 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3764 break;
3765 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3766 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3767 break;
3768 default:
3769 ret = -EOPNOTSUPP;
3770 break;
3771 }
3772
b08c1d97
LC		 3773 return ret;
3774}
3775
2f0282db
JB		 3776static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3777{
3778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3779
3780 return mvm->ibss_manager;
3781}
3782
8ca151b5
JB		 3783static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3784 struct ieee80211_sta *sta,
3785 bool set)
3786{
3787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3788 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3789
3790 if (!mvm_sta || !mvm_sta->vif) {
3791 IWL_ERR(mvm, "Station is not associated to a vif\n");
3792 return -EINVAL;
3793 }
3794
3795 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3796}
3797
507cadf2
DS		 3798#ifdef CONFIG_NL80211_TESTMODE
3799static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3800 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3801 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3802 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3803};
3804
3805static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3806 struct ieee80211_vif *vif,
3807 void *data, int len)
3808{
3809 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3810 int err;
3811 u32 noa_duration;
3812
fceb6435
JB		 3813 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3814 NULL);
507cadf2
DS		 3815 if (err)
3816 return err;
3817
3818 if (!tb[IWL_MVM_TM_ATTR_CMD])
3819 return -EINVAL;
3820
3821 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3822 case IWL_MVM_TM_CMD_SET_NOA:
3823 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3824 !vif->bss_conf.enable_beacon ||
3825 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3826 return -EINVAL;
3827
3828 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3829 if (noa_duration >= vif->bss_conf.beacon_int)
3830 return -EINVAL;
3831
3832 mvm->noa_duration = noa_duration;
3833 mvm->noa_vif = vif;
3834
22b21041 3835 return iwl_mvm_update_quotas(mvm, true, NULL);
f6c6ad42
JB		 3836 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3837 /* must be associated client vif - ignore authorized */
3838 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3839 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3840 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3841 return -EINVAL;
3842
3843 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3844 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3845 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3846 }
3847
3848 return -EOPNOTSUPP;
3849}
3850
3851static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3852 struct ieee80211_vif *vif,
3853 void *data, int len)
3854{
3855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3856 int err;
3857
3858 mutex_lock(&mvm->mutex);
3859 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3860 mutex_unlock(&mvm->mutex);
3861
3862 return err;
3863}
3864#endif
3865
622e3f9b
LC		 3866static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3867 struct ieee80211_vif *vif,
3868 struct ieee80211_channel_switch *chsw)
3869{
3870 /* By implementing this operation, we prevent mac80211 from
3871 * starting its own channel switch timer, so that we can call
3872 * ieee80211_chswitch_done() ourselves at the right time
3873 * (which is when the absence time event starts).
3874 */
3875
3876 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3877 "dummy channel switch op\n");
3878}
3879
f028905c
LC		 3880static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3881 struct ieee80211_vif *vif,
3882 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3883{
3884 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3885 struct ieee80211_vif *csa_vif;
f6c34820 3886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3887 u32 apply_time;
f028905c 3888 int ret;
bd3398e2
AO		 3889
3890 mutex_lock(&mvm->mutex);
664322fa 3891
81d62d5a
JB		 3892 mvmvif->csa_failed = false;
3893
6b20d774 3894 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3895 chsw->chandef.center_freq1);
6b20d774 3896
7174beb6
JB		 3897 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3898 ieee80211_vif_to_wdev(vif),
3899 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3900
6b20d774
LC		 3901 switch (vif->type) {
3902 case NL80211_IFTYPE_AP:
3903 csa_vif =
3904 rcu_dereference_protected(mvm->csa_vif,
3905 lockdep_is_held(&mvm->mutex));
3906 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3907 "Another CSA is already in progress")) {
3908 ret = -EBUSY;
3909 goto out_unlock;
3910 }
3911
d3a108a4
AO		 3912 /* we still didn't unblock tx. prevent new CS meanwhile */
3913 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3914 lockdep_is_held(&mvm->mutex))) {
3915 ret = -EBUSY;
3916 goto out_unlock;
3917 }
3918
6b20d774 3919 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3920
7ef0aab6
AO		 3921 if (WARN_ONCE(mvmvif->csa_countdown,
3922 "Previous CSA countdown didn't complete")) {
3923 ret = -EBUSY;
3924 goto out_unlock;
3925 }
3926
d3a108a4
AO		 3927 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3928
6b20d774 3929 break;
dc88b4ba 3930 case NL80211_IFTYPE_STATION:
4500e133
LC		 3931 /* Schedule the time event to a bit before beacon 1,
3932 * to make sure we're in the new channel when the
f5d8f50f
IP		 3933 * GO/AP arrives. In case count <= 1 immediately schedule the
3934 * TE (this might result with some packet loss or connection
3935 * loss).
4500e133 3936 */
f5d8f50f
IP		 3937 if (chsw->count <= 1)
3938 apply_time = 0;
3939 else
3940 apply_time = chsw->device_timestamp +
3941 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3942 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3943
3944 if (chsw->block_tx)
3945 iwl_mvm_csa_client_absent(mvm, vif);
3946
4500e133 3947 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3948 apply_time);
c6e0a3e0
LC		 3949 if (mvmvif->bf_data.bf_enabled) {
3950 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3951 if (ret)
3952 goto out_unlock;
3953 }
3954
dc88b4ba 3955 break;
6b20d774
LC		 3956 default:
3957 break;
3958 }
bd3398e2 3959
f6c34820
LC		 3960 mvmvif->ps_disabled = true;
3961
3962 ret = iwl_mvm_power_update_ps(mvm);
3963 if (ret)
3964 goto out_unlock;
f028905c 3965
e198f5e7
AN		 3966 /* we won't be on this channel any longer */
3967 iwl_mvm_teardown_tdls_peers(mvm);
3968
bd3398e2
AO		 3969out_unlock:
3970 mutex_unlock(&mvm->mutex);
f028905c
LC		 3971
3972 return ret;
bd3398e2
AO		 3973}
3974
f6c34820
LC		 3975static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3976 struct ieee80211_vif *vif)
3977{
3978 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3979 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3980 int ret;
3981
3982 mutex_lock(&mvm->mutex);
3983
81d62d5a
JB		 3984 if (mvmvif->csa_failed) {
3985 mvmvif->csa_failed = false;
3986 ret = -EIO;
3987 goto out_unlock;
3988 }
3989
a57c688d
LC		 3990 if (vif->type == NL80211_IFTYPE_STATION) {
3991 struct iwl_mvm_sta *mvmsta;
3992
19125cb0 3993 mvmvif->csa_bcn_pending = false;
a57c688d
LC		 3994 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3995 mvmvif->ap_sta_id);
3996
3997 if (WARN_ON(!mvmsta)) {
3998 ret = -EIO;
3999 goto out_unlock;
4000 }
4001
4002 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
4003
4004 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 4005
4006 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4007 if (ret)
4008 goto out_unlock;
686e7fe1
LC		 4009
4010 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 4011 }
4012
f6c34820
LC		 4013 mvmvif->ps_disabled = false;
4014
4015 ret = iwl_mvm_power_update_ps(mvm);
4016
a57c688d 4017out_unlock:
f6c34820
LC		 4018 mutex_unlock(&mvm->mutex);
4019
4020 return ret;
4021}
4022
6110d9e5
DS		 4023static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4024{
435d0827
SS		 4025 int i;
4026
06195639 4027 if (!iwl_mvm_has_new_tx_api(mvm)) {
309c4848
LC		 4028 if (drop) {
4029 mutex_lock(&mvm->mutex);
6110d9e5 4030 iwl_mvm_flush_tx_path(mvm,
435d0827 4031 iwl_mvm_flushable_queues(mvm) & queues, 0);
309c4848
LC		 4032 mutex_unlock(&mvm->mutex);
4033 } else {
06195639 4034 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
309c4848 4035 }
435d0827
SS		 4036 return;
4037 }
6110d9e5 4038
435d0827
SS		 4039 mutex_lock(&mvm->mutex);
4040 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4041 struct ieee80211_sta *sta;
6110d9e5 4042
435d0827
SS		 4043 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4044 lockdep_is_held(&mvm->mutex));
4045 if (IS_ERR_OR_NULL(sta))
4046 continue;
6110d9e5 4047
06195639
SS		 4048 if (drop)
4049 iwl_mvm_flush_sta_tids(mvm, i, 0xFF, 0);
4050 else
4051 iwl_mvm_wait_sta_queues_empty(mvm,
4052 iwl_mvm_sta_from_mac80211(sta));
6110d9e5 4053 }
435d0827 4054 mutex_unlock(&mvm->mutex);
6110d9e5
DS		 4055}
4056
c5b0e7c0
EG		 4057static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4058 struct ieee80211_vif *vif, u32 queues, bool drop)
4059{
4060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4061 struct iwl_mvm_vif *mvmvif;
4062 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 4063 struct ieee80211_sta *sta;
4064 int i;
4065 u32 msk = 0;
c5b0e7c0 4066
6110d9e5
DS		 4067 if (!vif) {
4068 iwl_mvm_flush_no_vif(mvm, queues, drop);
4069 return;
4070 }
4071
4072 if (vif->type != NL80211_IFTYPE_STATION)
c5b0e7c0
EG		 4073 return;
4074
24afba76 4075 /* Make sure we're done with the deferred traffic before flushing */
c8f54701 4076 flush_work(&mvm->add_stream_wk);
24afba76 4077
c5b0e7c0
EG		 4078 mutex_lock(&mvm->mutex);
4079 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 4080
a0f6bf2a 4081 /* flush the AP-station and all TDLS peers */
0ae98812 4082 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN		 4083 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4084 lockdep_is_held(&mvm->mutex));
4085 if (IS_ERR_OR_NULL(sta))
4086 continue;
4087
4088 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4089 if (mvmsta->vif != vif)
4090 continue;
4091
4092 /* make sure only TDLS peers or the AP are flushed */
4093 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4094
d49394a1
SS		 4095 if (drop) {
4096 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4097 IWL_ERR(mvm, "flush request fail\n");
4098 } else {
4099 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS		 4100 if (iwl_mvm_has_new_tx_api(mvm))
4101 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4102 }
480acbce 4103 }
c5b0e7c0 4104
d49394a1 4105 mutex_unlock(&mvm->mutex);
4e6c48e0 4106
d49394a1
SS		 4107 /* this can take a while, and we may need/want other operations
4108 * to succeed while doing this, so do it without the mutex held
4109 */
d6d517b7 4110 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4111 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG		 4112}
4113
91a8bcde
JB		 4114static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4115 struct survey_info *survey)
4116{
4117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4118 int ret;
4119
4120 memset(survey, 0, sizeof(*survey));
4121
4122 /* only support global statistics right now */
4123 if (idx != 0)
4124 return -ENOENT;
4125
280a3efa
JB		 4126 if (!fw_has_capa(&mvm->fw->ucode_capa,
4127 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 4128 return -ENOENT;
4129
4130 mutex_lock(&mvm->mutex);
4131
aab6930d 4132 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4133 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4134 if (ret)
4135 goto out;
4136 }
4137
4138 survey->filled = SURVEY_INFO_TIME |
4139 SURVEY_INFO_TIME_RX |
4140 SURVEY_INFO_TIME_TX |
4141 SURVEY_INFO_TIME_SCAN;
4142 survey->time = mvm->accu_radio_stats.on_time_rf +
4143 mvm->radio_stats.on_time_rf;
4144 do_div(survey->time, USEC_PER_MSEC);
4145
4146 survey->time_rx = mvm->accu_radio_stats.rx_time +
4147 mvm->radio_stats.rx_time;
4148 do_div(survey->time_rx, USEC_PER_MSEC);
4149
4150 survey->time_tx = mvm->accu_radio_stats.tx_time +
4151 mvm->radio_stats.tx_time;
4152 do_div(survey->time_tx, USEC_PER_MSEC);
4153
4154 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4155 mvm->radio_stats.on_time_scan;
4156 do_div(survey->time_scan, USEC_PER_MSEC);
4157
10a7c028 4158 ret = 0;
91a8bcde
JB		 4159 out:
4160 mutex_unlock(&mvm->mutex);
4161 return ret;
4162}
4163
33cef925
JB		 4164static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4165 struct ieee80211_vif *vif,
4166 struct ieee80211_sta *sta,
4167 struct station_info *sinfo)
4168{
4169 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4170 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4171 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4172
988b5968
SS		 4173 if (mvmsta->avg_energy) {
4174 sinfo->signal_avg = mvmsta->avg_energy;
4175 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4176 }
4177
280a3efa
JB		 4178 if (!fw_has_capa(&mvm->fw->ucode_capa,
4179 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4180 return;
4181
4182 /* if beacon filtering isn't on mac80211 does it anyway */
4183 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4184 return;
4185
4186 if (!vif->bss_conf.assoc)
4187 return;
4188
4189 mutex_lock(&mvm->mutex);
4190
4191 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4192 goto unlock;
4193
4194 if (iwl_mvm_request_statistics(mvm, false))
4195 goto unlock;
4196
4197 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4198 mvmvif->beacon_stats.accu_num_beacons;
4199 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4200 if (mvmvif->beacon_stats.avg_signal) {
4201 /* firmware only reports a value after RXing a few beacons */
4202 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4203 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4204 }
4205 unlock:
4206 mutex_unlock(&mvm->mutex);
4207}
4208
4203263d
EG		 4209static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4210 struct ieee80211_vif *vif,
4211 const struct ieee80211_event *event)
d42f5350 4212{
7174beb6
JB		 4213#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4214 do { \
4215 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4216 break; \
4217 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG		 4218 } while (0)
4219
d42f5350
EG		 4220 struct iwl_fw_dbg_trigger_tlv *trig;
4221 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4222
4223 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4224 return;
4225
d42f5350
EG		 4226 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4227 trig_mlme = (void *)trig->data;
7174beb6
JB		 4228 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4229 ieee80211_vif_to_wdev(vif), trig))
d42f5350
EG		 4230 return;
4231
d42f5350
EG		 4232 if (event->u.mlme.data == ASSOC_EVENT) {
4233 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4234 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG		 4235 "DENIED ASSOC: reason %d",
4236 event->u.mlme.reason);
4237 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4238 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG		 4239 "ASSOC TIMEOUT");
4240 } else if (event->u.mlme.data == AUTH_EVENT) {
4241 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4242 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG		 4243 "DENIED AUTH: reason %d",
4244 event->u.mlme.reason);
4245 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4246 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG		 4247 "AUTH TIMEOUT");
4248 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4249 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG		 4250 "DEAUTH RX %d", event->u.mlme.reason);
4251 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4252 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG		 4253 "DEAUTH TX %d", event->u.mlme.reason);
4254 }
4255#undef CHECK_MLME_TRIGGER
4256}
4257
4203263d
EG		 4258static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4259 struct ieee80211_vif *vif,
4260 const struct ieee80211_event *event)
4261{
4262 struct iwl_fw_dbg_trigger_tlv *trig;
4263 struct iwl_fw_dbg_trigger_ba *ba_trig;
4264
4265 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4266 return;
4267
4268 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4269 ba_trig = (void *)trig->data;
7174beb6
JB		 4270 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4271 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4272 return;
4273
4274 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4275 return;
4276
7174beb6
JB		 4277 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4278 "BAR received from %pM, tid %d, ssn %d",
4279 event->u.ba.sta->addr, event->u.ba.tid,
4280 event->u.ba.ssn);
4203263d
EG		 4281}
4282
4203263d
EG		 4283static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4284 struct ieee80211_vif *vif,
4285 const struct ieee80211_event *event)
4286{
4287 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4288
4289 switch (event->type) {
4290 case MLME_EVENT:
4291 iwl_mvm_event_mlme_callback(mvm, vif, event);
4292 break;
4293 case BAR_RX_EVENT:
4294 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4295 break;
4296 case BA_FRAME_TIMEOUT:
528a542a
EG		 4297 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
4298 event->u.ba.tid);
4203263d
EG		 4299 break;
4300 default:
4301 break;
4302 }
4303}
4304
d0ff5d22
SS		 4305void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4306 struct iwl_mvm_internal_rxq_notif *notif,
4307 u32 size)
0636b938 4308{
0636b938
SS		 4309 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4310 int ret;
4311
4312 lockdep_assert_held(&mvm->mutex);
4313
cb8550e1 4314 if (!iwl_mvm_has_new_rx_api(mvm))
0636b938
SS		 4315 return;
4316
d0ff5d22
SS		 4317 notif->cookie = mvm->queue_sync_cookie;
4318
4319 if (notif->sync)
4320 atomic_set(&mvm->queue_sync_counter,
4321 mvm->trans->num_rx_queues);
0636b938 4322
cb8550e1 4323 /* TODO - remove this when we have RXQ config API */
2f7a3863 4324 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_22000) {
cb8550e1
SS		 4325 qmask = BIT(0);
4326 if (notif->sync)
4327 atomic_set(&mvm->queue_sync_counter, 1);
4328 }
4329
d0ff5d22 4330 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4331 if (ret) {
4332 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4333 goto out;
4334 }
d0ff5d22 4335
6ad04359 4336 if (notif->sync) {
3a732c65 4337 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB		 4338 atomic_read(&mvm->queue_sync_counter) == 0 ||
4339 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4340 HZ);
6ad04359
JB		 4341 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4342 }
0636b938
SS		 4343
4344out:
4345 atomic_set(&mvm->queue_sync_counter, 0);
4346 mvm->queue_sync_cookie++;
4347}
4348
4349static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4350{
4351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4352 struct iwl_mvm_internal_rxq_notif data = {
4353 .type = IWL_MVM_RXQ_EMPTY,
4354 .sync = 1,
4355 };
0636b938
SS		 4356
4357 mutex_lock(&mvm->mutex);
d0ff5d22 4358 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4359 mutex_unlock(&mvm->mutex);
4360}
4361
e5209263 4362const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4363 .tx = iwl_mvm_mac_tx,
4364 .ampdu_action = iwl_mvm_mac_ampdu_action,
4365 .start = iwl_mvm_mac_start,
cf2c92d8 4366 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4367 .stop = iwl_mvm_mac_stop,
4368 .add_interface = iwl_mvm_mac_add_interface,
4369 .remove_interface = iwl_mvm_mac_remove_interface,
4370 .config = iwl_mvm_mac_config,
e59647ea 4371 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4372 .configure_filter = iwl_mvm_configure_filter,
effd1929 4373 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4374 .bss_info_changed = iwl_mvm_bss_info_changed,
4375 .hw_scan = iwl_mvm_mac_hw_scan,
4376 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4377 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4378 .sta_state = iwl_mvm_mac_sta_state,
4379 .sta_notify = iwl_mvm_mac_sta_notify,
4380 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4381 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4382 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4383 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4384 .conf_tx = iwl_mvm_mac_conf_tx,
4385 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4386 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4387 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4388 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4389 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4390 .set_key = iwl_mvm_mac_set_key,
4391 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4392 .remain_on_channel = iwl_mvm_roc,
4393 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4394 .add_chanctx = iwl_mvm_add_chanctx,
4395 .remove_chanctx = iwl_mvm_remove_chanctx,
4396 .change_chanctx = iwl_mvm_change_chanctx,
4397 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4398 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4399 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4400
5023d966
JB		 4401 .start_ap = iwl_mvm_start_ap_ibss,
4402 .stop_ap = iwl_mvm_stop_ap_ibss,
4403 .join_ibss = iwl_mvm_start_ap_ibss,
4404 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4405
2f0282db
JB		 4406 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4407
8ca151b5
JB		 4408 .set_tim = iwl_mvm_set_tim,
4409
622e3f9b 4410 .channel_switch = iwl_mvm_channel_switch,
f028905c 4411 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4412 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4413
1d3c3f63
AN		 4414 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4415 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4416 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4417
d42f5350
EG		 4418 .event_callback = iwl_mvm_mac_event_callback,
4419
0636b938
SS		 4420 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4421
507cadf2
DS		 4422 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4423
8ca151b5
JB		 4424#ifdef CONFIG_PM_SLEEP
4425 /* look at d3.c */
4426 .suspend = iwl_mvm_suspend,
4427 .resume = iwl_mvm_resume,
4428 .set_wakeup = iwl_mvm_set_wakeup,
4429 .set_rekey_data = iwl_mvm_set_rekey_data,
4430#if IS_ENABLED(CONFIG_IPV6)
4431 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4432#endif
4433 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4434#endif
91a8bcde 4435 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4436 .sta_statistics = iwl_mvm_mac_sta_statistics,
177a11cf
GG		 4437#ifdef CONFIG_IWLWIFI_DEBUGFS
4438 .sta_add_debugfs = iwl_mvm_sta_add_debugfs,
4439#endif
8ca151b5 4440};
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