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iwlwifi: mvm: add firmware API name comment
[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.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
f92659a1 10 * Copyright(c) 2016 Intel Deutschland GmbH
8ca151b5
JB		 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
410dc5aa 27 * in the file called COPYING.
8ca151b5
JB		 28 *
29 * Contact Information:
cb2f8277 30 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
51368bf7 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66#include <linux/kernel.h>
67#include <linux/slab.h>
68#include <linux/skbuff.h>
69#include <linux/netdevice.h>
70#include <linux/etherdevice.h>
f0c2646a 71#include <linux/ip.h>
2ee8f021 72#include <linux/if_arp.h>
2f89a5d7 73#include <linux/time.h>
8ca151b5 74#include <net/mac80211.h>
7b1dd048 75#include <net/ieee80211_radiotap.h>
f0c2646a 76#include <net/tcp.h>
8ca151b5
JB		 77
78#include "iwl-op-mode.h"
79#include "iwl-io.h"
80#include "mvm.h"
81#include "sta.h"
82#include "time-event.h"
83#include "iwl-eeprom-parse.h"
8ca151b5 84#include "iwl-phy-db.h"
507cadf2 85#include "testmode.h"
655e6d6d
EG		 86#include "iwl-fw-error-dump.h"
87#include "iwl-prph.h"
88931cc9 88#include "iwl-nvm-parse.h"
2f89a5d7 89#include "fw-dbg.h"
8ca151b5
JB		 90
91static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 {
93 .max = 1,
8eb38710 94 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 95 },
3c15a0fb
JB		 96 {
97 .max = 1,
8eb38710
IP		 98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 100 BIT(NL80211_IFTYPE_P2P_GO),
101 },
102 {
103 .max = 1,
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 },
8ca151b5
JB		 106};
107
108static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 {
2624a5ca 110 .num_different_channels = 2,
8ca151b5
JB		 111 .max_interfaces = 3,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 },
115};
116
f0c2646a
JB		 117#ifdef CONFIG_PM_SLEEP
118static const struct nl80211_wowlan_tcp_data_token_feature
119iwl_mvm_wowlan_tcp_token_feature = {
120 .min_len = 0,
121 .max_len = 255,
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123};
124
125static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
136 .seq = true,
137};
138#endif
139
77736923 140#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 141/*
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
148 * be skipped.
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
151 */
152enum {
153 BC_FILTER_MAGIC_NONE = 0,
154 BC_FILTER_MAGIC_IP,
155 BC_FILTER_MAGIC_MAC,
156};
157
77736923
EP		 158static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 {
160 /* arp */
161 .discard = 0,
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 .attrs = {
164 {
165 /* frame type - arp, hw type - ethernet */
166 .offset_type =
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
171 },
2ee8f021
EP		 172 {
173 /* arp dest ip */
174 .offset_type =
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
179 ETH_ALEN,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
183 },
184 },
185 },
186 {
187 /* dhcp offer bcast */
188 .discard = 0,
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 .attrs = {
191 {
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
197 },
198 {
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .offset = 38,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 },
77736923
EP		 206 },
207 },
208 /* last filter must be empty */
209 {},
210};
211#endif
212
7498cf4c
EP		 213void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214{
7bb426ea 215 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 216 return;
217
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 222 iwl_trans_ref(mvm->trans);
223}
224
225void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226{
7bb426ea 227 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 228 return;
229
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 231 spin_lock_bh(&mvm->refs_lock);
232 WARN_ON(!mvm->refs[ref_type]--);
233 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 234 iwl_trans_unref(mvm->trans);
235}
236
576eeee9
EP		 237static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
238 enum iwl_mvm_ref_type except_ref)
7498cf4c 239{
576eeee9 240 int i, j;
7498cf4c 241
7bb426ea 242 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 243 return;
244
576eeee9
EP		 245 spin_lock_bh(&mvm->refs_lock);
246 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
247 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 248 continue;
249
576eeee9
EP		 250 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
251 i, mvm->refs[i]);
252 for (j = 0; j < mvm->refs[i]; j++)
253 iwl_trans_unref(mvm->trans);
254 mvm->refs[i] = 0;
7498cf4c 255 }
576eeee9 256 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 257}
258
f4cf8680
EP		 259bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
260{
261 int i;
262 bool taken = false;
263
264 if (!iwl_mvm_is_d0i3_supported(mvm))
265 return true;
266
267 spin_lock_bh(&mvm->refs_lock);
268 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
269 if (mvm->refs[i]) {
270 taken = true;
271 break;
272 }
273 }
274 spin_unlock_bh(&mvm->refs_lock);
275
276 return taken;
277}
278
576eeee9 279int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 280{
281 iwl_mvm_ref(mvm, ref_type);
282
283 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
284 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
285 HZ)) {
286 WARN_ON_ONCE(1);
287 iwl_mvm_unref(mvm, ref_type);
288 return -EIO;
289 }
290
291 return 0;
292}
293
fe0f2de3
IP		 294static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
295{
296 int i;
297
298 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
299 for (i = 0; i < NUM_PHY_CTX; i++) {
300 mvm->phy_ctxts[i].id = i;
301 mvm->phy_ctxts[i].ref = 0;
302 }
303}
304
88931cc9 305struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 306 const char *alpha2,
47c8b154
JD		 307 enum iwl_mcc_source src_id,
308 bool *changed)
88931cc9
AN		 309{
310 struct ieee80211_regdomain *regd = NULL;
311 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
313 struct iwl_mcc_update_resp *resp;
314
315 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
316
8ba2d7a1 317 lockdep_assert_held(&mvm->mutex);
88931cc9 318
8ba2d7a1 319 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 320 if (IS_ERR_OR_NULL(resp)) {
321 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 322 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 323 goto out;
88931cc9
AN		 324 }
325
47c8b154
JD		 326 if (changed)
327 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
328
162ee3c9 329 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 330 __le32_to_cpu(resp->n_channels),
331 resp->channels,
332 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 333 /* Store the return source id */
334 src_id = resp->source_id;
88931cc9
AN		 335 kfree(resp);
336 if (IS_ERR_OR_NULL(regd)) {
337 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 338 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 339 goto out;
88931cc9
AN		 340 }
341
8ba2d7a1
EH		 342 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
343 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 344 mvm->lar_regdom_set = true;
8ba2d7a1 345 mvm->mcc_src = src_id;
88931cc9 346
8ba2d7a1 347out:
88931cc9
AN		 348 return regd;
349}
350
47c8b154
JD		 351void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
352{
353 bool changed;
354 struct ieee80211_regdomain *regd;
355
356 if (!iwl_mvm_is_lar_supported(mvm))
357 return;
358
359 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
360 if (!IS_ERR_OR_NULL(regd)) {
361 /* only update the regulatory core if changed */
362 if (changed)
363 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
364
365 kfree(regd);
366 }
367}
368
369struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
370 bool *changed)
8ba2d7a1
EH		 371{
372 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
373 iwl_mvm_is_wifi_mcc_supported(mvm) ?
374 MCC_SOURCE_GET_CURRENT :
47c8b154 375 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 376}
377
378int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
379{
380 enum iwl_mcc_source used_src;
381 struct ieee80211_regdomain *regd;
b6e160ab
AN		 382 int ret;
383 bool changed;
8ba2d7a1
EH		 384 const struct ieee80211_regdomain *r =
385 rtnl_dereference(mvm->hw->wiphy->regd);
386
387 if (!r)
b6e160ab 388 return -ENOENT;
8ba2d7a1
EH		 389
390 /* save the last source in case we overwrite it below */
391 used_src = mvm->mcc_src;
392 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
393 /* Notify the firmware we support wifi location updates */
47c8b154 394 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 395 if (!IS_ERR_OR_NULL(regd))
396 kfree(regd);
397 }
398
399 /* Now set our last stored MCC and source */
b6e160ab
AN		 400 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
401 &changed);
8ba2d7a1
EH		 402 if (IS_ERR_OR_NULL(regd))
403 return -EIO;
404
b6e160ab
AN		 405 /* update cfg80211 if the regdomain was changed */
406 if (changed)
407 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
408 else
409 ret = 0;
8ba2d7a1 410
b6e160ab
AN		 411 kfree(regd);
412 return ret;
8ba2d7a1
EH		 413}
414
8ca151b5
JB		 415int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
416{
417 struct ieee80211_hw *hw = mvm->hw;
831e85f3 418 int num_mac, ret, i;
5f4c02e2
JB		 419 static const u32 mvm_ciphers[] = {
420 WLAN_CIPHER_SUITE_WEP40,
421 WLAN_CIPHER_SUITE_WEP104,
422 WLAN_CIPHER_SUITE_TKIP,
423 WLAN_CIPHER_SUITE_CCMP,
424 };
8ca151b5
JB		 425
426 /* Tell mac80211 our characteristics */
30686bf7
JB		 427 ieee80211_hw_set(hw, SIGNAL_DBM);
428 ieee80211_hw_set(hw, SPECTRUM_MGMT);
429 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
430 ieee80211_hw_set(hw, QUEUE_CONTROL);
431 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
432 ieee80211_hw_set(hw, SUPPORTS_PS);
433 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
434 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
435 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
436 ieee80211_hw_set(hw, CONNECTION_MONITOR);
437 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
438 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
439 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 440 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 441 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
8ca151b5 442
2d7cf549
JB		 443 if (mvm->trans->max_skb_frags)
444 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
445
19e737c9 446 hw->queues = mvm->first_agg_queue;
398e8c6c 447 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 448 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
449 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 450 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
451 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 452 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 453 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
454 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 455
5f4c02e2
JB		 456 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
457 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
458 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
459 hw->wiphy->cipher_suites = mvm->ciphers;
460
8ca151b5
JB		 461 /*
462 * Enable 11w if advertised by firmware and software crypto
463 * is not enabled (as the firmware will interpret some mgmt
464 * packets, so enabling it with software crypto isn't safe)
465 */
466 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
5f4c02e2 467 !iwlwifi_mod_params.sw_crypto) {
30686bf7 468 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 469 mvm->ciphers[hw->wiphy->n_cipher_suites] =
470 WLAN_CIPHER_SUITE_AES_CMAC;
471 hw->wiphy->n_cipher_suites++;
472 }
473
474 /* currently FW API supports only one optional cipher scheme */
475 if (mvm->fw->cs[0].cipher) {
476 mvm->hw->n_cipher_schemes = 1;
477 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
478 mvm->ciphers[hw->wiphy->n_cipher_suites] =
479 mvm->fw->cs[0].cipher;
480 hw->wiphy->n_cipher_suites++;
481 }
8ca151b5 482
30686bf7 483 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 484 hw->wiphy->features |=
485 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 486 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
487 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 488
8ca151b5
JB		 489 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
490 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 491 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 492
493 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 494 BIT(NL80211_IFTYPE_P2P_CLIENT) |
495 BIT(NL80211_IFTYPE_AP) |
496 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 497 BIT(NL80211_IFTYPE_P2P_DEVICE) |
498 BIT(NL80211_IFTYPE_ADHOC);
5023d966 499
a2f73b6c 500 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 501 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
502 if (iwl_mvm_is_lar_supported(mvm))
503 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
504 else
505 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
506 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 507
3e56eadf
JB		 508 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
509 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
510
94bbed72 511 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 512
8ca151b5
JB		 513 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
514 hw->wiphy->n_iface_combinations =
515 ARRAY_SIZE(iwl_mvm_iface_combinations);
516
c451e6d4 517 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 518 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 519 /* we can compensate an offset of up to 3 channels = 15 MHz */
520 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 521
522 /* Extract MAC address */
523 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
524 hw->wiphy->addresses = mvm->addresses;
525 hw->wiphy->n_addresses = 1;
831e85f3
IP		 526
527 /* Extract additional MAC addresses if available */
528 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
529 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
530
531 for (i = 1; i < num_mac; i++) {
532 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 533 ETH_ALEN);
831e85f3 534 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 535 hw->wiphy->n_addresses++;
536 }
537
fe0f2de3
IP		 538 iwl_mvm_reset_phy_ctxts(mvm);
539
999d2568 540 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 541
8ca151b5
JB		 542 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
543
c7d42480 544 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 545 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
546 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
547
859d914c 548 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 549 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
550 else
551 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
552
57fbcce3
JB		 553 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
554 hw->wiphy->bands[NL80211_BAND_2GHZ] =
555 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
556 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
557 hw->wiphy->bands[NL80211_BAND_5GHZ] =
558 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 559
859d914c
JB		 560 if (fw_has_capa(&mvm->fw->ucode_capa,
561 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
562 fw_has_api(&mvm->fw->ucode_capa,
563 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 564 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 565 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
566 }
567
8ca151b5
JB		 568 hw->wiphy->hw_version = mvm->trans->hw_id;
569
ade50652 570 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 571 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
572 else
573 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
574
9954b37c
EG		 575 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
576 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
577 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
578 /* we create the 802.11 header and zero length SSID IE. */
579 hw->wiphy->max_sched_scan_ie_len =
580 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 581 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
582 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
583
584 /*
585 * the firmware uses u8 for num of iterations, but 0xff is saved for
586 * infinite loop, so the maximum number of iterations is actually 254.
587 */
588 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 589
8ca151b5 590 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 591 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 592 NL80211_FEATURE_P2P_GO_OPPPS |
593 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 594 NL80211_FEATURE_STATIC_SMPS |
595 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 596
859d914c
JB		 597 if (fw_has_capa(&mvm->fw->ucode_capa,
598 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 599 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 600 if (fw_has_capa(&mvm->fw->ucode_capa,
601 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 602 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 603
859d914c
JB		 604 if (fw_has_capa(&mvm->fw->ucode_capa,
605 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 606 hw->wiphy->features |=
607 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
608
859d914c
JB		 609 if (fw_has_capa(&mvm->fw->ucode_capa,
610 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 611 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
612
8ca151b5
JB		 613 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
614
615#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 616 if (iwl_mvm_is_d0i3_supported(mvm) &&
617 device_can_wakeup(mvm->trans->dev)) {
618 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
619 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 620 }
621
622 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 623 mvm->trans->ops->d3_suspend &&
624 mvm->trans->ops->d3_resume &&
625 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 626 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
627 WIPHY_WOWLAN_DISCONNECT |
628 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
629 WIPHY_WOWLAN_RFKILL_RELEASE |
630 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 631 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 632 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
633 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
634 WIPHY_WOWLAN_4WAY_HANDSHAKE;
635
636 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
637 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
638 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 639 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 640 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
641 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 642 }
643#endif
644
77736923
EP		 645#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
646 /* assign default bcast filtering configuration */
647 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
648#endif
649
8ca151b5
JB		 650 ret = iwl_mvm_leds_init(mvm);
651 if (ret)
652 return ret;
653
859d914c
JB		 654 if (fw_has_capa(&mvm->fw->ucode_capa,
655 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 656 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
657 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 658 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 659 }
660
859d914c
JB		 661 if (fw_has_capa(&mvm->fw->ucode_capa,
662 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 663 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
664 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
665 }
666
93190fb0 667 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 668 if (!iwl_mvm_is_csum_supported(mvm)) {
669 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
670 NETIF_F_RXCSUM);
671 /* We may support SW TX CSUM */
672 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
673 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
674 }
41837ca9 675
b7327d89
EG		 676 ret = ieee80211_register_hw(mvm->hw);
677 if (ret)
678 iwl_mvm_leds_exit(mvm);
679
680 return ret;
8ca151b5
JB		 681}
682
b2492501
AN		 683static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
684 struct ieee80211_sta *sta,
685 struct sk_buff *skb)
686{
687 struct iwl_mvm_sta *mvmsta;
688 bool defer = false;
689
690 /*
691 * double check the IN_D0I3 flag both before and after
692 * taking the spinlock, in order to prevent taking
693 * the spinlock when not needed.
694 */
695 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
696 return false;
697
698 spin_lock(&mvm->d0i3_tx_lock);
699 /*
700 * testing the flag again ensures the skb dequeue
701 * loop (on d0i3 exit) hasn't run yet.
702 */
703 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
704 goto out;
705
706 mvmsta = iwl_mvm_sta_from_mac80211(sta);
707 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
708 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
709 goto out;
710
711 __skb_queue_tail(&mvm->d0i3_tx, skb);
712 ieee80211_stop_queues(mvm->hw);
713
714 /* trigger wakeup */
715 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
716 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
717
718 defer = true;
719out:
720 spin_unlock(&mvm->d0i3_tx_lock);
721 return defer;
722}
723
8ca151b5
JB		 724static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
725 struct ieee80211_tx_control *control,
726 struct sk_buff *skb)
727{
728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 729 struct ieee80211_sta *sta = control->sta;
730 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
731 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 732
9ee718aa
EL		 733 if (iwl_mvm_is_radio_killed(mvm)) {
734 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 735 goto drop;
736 }
737
398e8c6c 738 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 739 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
740 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 741 goto drop;
742
3e56eadf
JB		 743 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
744 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
745 ieee80211_is_mgmt(hdr->frame_control) &&
746 !ieee80211_is_deauth(hdr->frame_control) &&
747 !ieee80211_is_disassoc(hdr->frame_control) &&
748 !ieee80211_is_action(hdr->frame_control)))
749 sta = NULL;
750
751 if (sta) {
b2492501
AN		 752 if (iwl_mvm_defer_tx(mvm, sta, skb))
753 return;
3e56eadf 754 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 755 goto drop;
756 return;
757 }
758
759 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
760 goto drop;
761 return;
762 drop:
763 ieee80211_free_txskb(hw, skb);
764}
765
205e2210
EG		 766static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
767{
768 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
769 return false;
770 return true;
771}
772
773static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
774{
775 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
776 return false;
777 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
778 return true;
779
780 /* enabled by default */
781 return true;
782}
783
4203263d
EG		 784#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
785 do { \
786 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
787 break; \
788 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
789 } while (0)
790
791static void
792iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
793 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
794 enum ieee80211_ampdu_mlme_action action)
795{
796 struct iwl_fw_dbg_trigger_tlv *trig;
797 struct iwl_fw_dbg_trigger_ba *ba_trig;
798
799 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
800 return;
801
802 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
803 ba_trig = (void *)trig->data;
804
805 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
806 return;
807
808 switch (action) {
809 case IEEE80211_AMPDU_TX_OPERATIONAL: {
810 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
811 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
812
813 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
814 "TX AGG START: MAC %pM tid %d ssn %d\n",
815 sta->addr, tid, tid_data->ssn);
816 break;
817 }
818 case IEEE80211_AMPDU_TX_STOP_CONT:
819 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
820 "TX AGG STOP: MAC %pM tid %d\n",
821 sta->addr, tid);
822 break;
823 case IEEE80211_AMPDU_RX_START:
824 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
825 "RX AGG START: MAC %pM tid %d ssn %d\n",
826 sta->addr, tid, rx_ba_ssn);
827 break;
828 case IEEE80211_AMPDU_RX_STOP:
829 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
830 "RX AGG STOP: MAC %pM tid %d\n",
831 sta->addr, tid);
832 break;
833 default:
834 break;
835 }
836}
837
8ca151b5
JB		 838static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif,
50ea05ef 840 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 841{
842 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
843 int ret;
b2492501 844 bool tx_agg_ref = false;
50ea05ef
SS		 845 struct ieee80211_sta *sta = params->sta;
846 enum ieee80211_ampdu_mlme_action action = params->action;
847 u16 tid = params->tid;
848 u16 *ssn = &params->ssn;
849 u8 buf_size = params->buf_size;
bb81bb68 850 bool amsdu = params->amsdu;
10b2b201 851 u16 timeout = params->timeout;
8ca151b5
JB		 852
853 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
854 sta->addr, tid, action);
855
856 if (!(mvm->nvm_data->sku_cap_11n_enable))
857 return -EACCES;
858
b2492501 859 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 860 switch (action) {
861 case IEEE80211_AMPDU_TX_START:
862 case IEEE80211_AMPDU_TX_STOP_CONT:
863 case IEEE80211_AMPDU_TX_STOP_FLUSH:
864 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
865 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 866 /*
9256c205
EP		 867 * for tx start, wait synchronously until D0i3 exit to
868 * get the correct sequence number for the tid.
869 * additionally, some other ampdu actions use direct
870 * target access, which is not handled automatically
871 * by the trans layer (unlike commands), so wait for
872 * d0i3 exit in these cases as well.
b2492501 873 */
d40fc489
GG		 874 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
875 if (ret)
876 return ret;
877
878 tx_agg_ref = true;
9256c205
EP		 879 break;
880 default:
881 break;
b2492501
AN		 882 }
883
8ca151b5
JB		 884 mutex_lock(&mvm->mutex);
885
886 switch (action) {
887 case IEEE80211_AMPDU_RX_START:
205e2210 888 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 889 ret = -EINVAL;
890 break;
891 }
10b2b201
SS		 892 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
893 timeout);
8ca151b5
JB		 894 break;
895 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 896 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
897 timeout);
8ca151b5
JB		 898 break;
899 case IEEE80211_AMPDU_TX_START:
205e2210 900 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 901 ret = -EINVAL;
902 break;
903 }
8ca151b5
JB		 904 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
905 break;
906 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 907 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
908 break;
8ca151b5
JB		 909 case IEEE80211_AMPDU_TX_STOP_FLUSH:
910 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 911 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 912 break;
913 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 914 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
915 buf_size, amsdu);
8ca151b5
JB		 916 break;
917 default:
918 WARN_ON_ONCE(1);
919 ret = -EINVAL;
920 break;
921 }
4203263d
EG		 922
923 if (!ret) {
924 u16 rx_ba_ssn = 0;
925
926 if (action == IEEE80211_AMPDU_RX_START)
927 rx_ba_ssn = *ssn;
928
929 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
930 rx_ba_ssn, action);
931 }
8ca151b5
JB		 932 mutex_unlock(&mvm->mutex);
933
b2492501
AN		 934 /*
935 * If the tid is marked as started, we won't use it for offloaded
936 * traffic on the next D0i3 entry. It's safe to unref.
937 */
938 if (tx_agg_ref)
939 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
940
8ca151b5
JB		 941 return ret;
942}
943
944static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
945 struct ieee80211_vif *vif)
946{
947 struct iwl_mvm *mvm = data;
948 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
949
950 mvmvif->uploaded = false;
951 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
952
8ca151b5
JB		 953 spin_lock_bh(&mvm->time_event_lock);
954 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
955 spin_unlock_bh(&mvm->time_event_lock);
956
fe0f2de3 957 mvmvif->phy_ctxt = NULL;
8a275bad 958 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 959}
960
961static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
962{
58629d9d
JB		 963 /* clear the D3 reconfig, we only need it to avoid dumping a
964 * firmware coredump on reconfiguration, we shouldn't do that
965 * on D3->D0 transition
966 */
b6eaa45a
EG		 967 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
968 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 969 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 970 }
1bd3cbc1 971
744cb695
EP		 972 /* cleanup all stale references (scan, roc), but keep the
973 * ucode_down ref until reconfig is complete
974 */
975 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
976
fcb6b92a 977 iwl_mvm_stop_device(mvm);
8ca151b5 978
9af91f46 979 mvm->scan_status = 0;
b1873300 980 mvm->ps_disabled = false;
31b8b343 981 mvm->calibrating = false;
8ca151b5
JB		 982
983 /* just in case one was running */
305d236e 984 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 985 ieee80211_remain_on_channel_expired(mvm->hw);
986
737719fe
AN		 987 /*
988 * cleanup all interfaces, even inactive ones, as some might have
989 * gone down during the HW restart
990 */
991 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 992
fe0f2de3 993 mvm->p2p_device_vif = NULL;
37577fe2 994 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 995
996 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 997 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
8ca151b5 998 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
24afba76 999 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
a0f6bf2a 1000 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1001 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1002 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1003 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1004 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1005 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1006 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1007
1008 ieee80211_wake_queues(mvm->hw);
1009
228670b2
EP		 1010 /* clear any stale d0i3 state */
1011 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1012
8ca151b5 1013 mvm->vif_count = 0;
113a0447 1014 mvm->rx_ba_sessions = 0;
d2709ad7 1015 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1016
1017 /* keep statistics ticking */
1018 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1019}
1020
a0a09243 1021int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1022{
8ca151b5
JB		 1023 int ret;
1024
a0a09243 1025 lockdep_assert_held(&mvm->mutex);
8ca151b5 1026
a42b2af3
LC		 1027 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1028 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1029 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1030 } else {
1031 /* Hold the reference to prevent runtime suspend while
1032 * the start procedure runs. It's a bit confusing
1033 * that the UCODE_DOWN reference is taken, but it just
1034 * means "UCODE is not UP yet". ( TODO: rename this
1035 * reference).
1036 */
1037 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1038 }
8ca151b5 1039 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1040
1041 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1042 /* Something went wrong - we need to finish some cleanup
1043 * that normally iwl_mvm_mac_restart_complete() below
1044 * would do.
1045 */
1046 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1047 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1048 }
1049
a0a09243
LC		 1050 return ret;
1051}
1052
1053static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1054{
1055 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1056 int ret;
1057
37948fcf
EP		 1058 /* Some hw restart cleanups must not hold the mutex */
1059 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1060 /*
1061 * Make sure we are out of d0i3. This is needed
1062 * to make sure the reference accounting is correct
1063 * (and there is no stale d0i3_exit_work).
1064 */
1065 wait_event_timeout(mvm->d0i3_exit_waitq,
1066 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1067 &mvm->status),
1068 HZ);
1069 }
1070
a0a09243
LC		 1071 mutex_lock(&mvm->mutex);
1072 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1073 mutex_unlock(&mvm->mutex);
1074
1075 return ret;
1076}
1077
cf2c92d8 1078static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1079{
8ca151b5
JB		 1080 int ret;
1081
1082 mutex_lock(&mvm->mutex);
1083
1084 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1085 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1086 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1087 if (ret)
1088 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1089 ret);
1090
7498cf4c
EP		 1091 /* allow transport/FW low power modes */
1092 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1093
cbd2ae2d
AN		 1094 /*
1095 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1096 * of packets the FW sent out, so we must reconnect.
1097 */
1098 iwl_mvm_teardown_tdls_peers(mvm);
1099
8ca151b5
JB		 1100 mutex_unlock(&mvm->mutex);
1101}
1102
088070a2
EP		 1103static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1104{
b7282643
LC		 1105 if (iwl_mvm_is_d0i3_supported(mvm) &&
1106 iwl_mvm_enter_d0i3_on_suspend(mvm))
1107 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1108 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1109 &mvm->status),
1110 HZ),
1111 "D0i3 exit on resume timed out\n");
088070a2
EP		 1112}
1113
cf2c92d8
EP		 1114static void
1115iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1116 enum ieee80211_reconfig_type reconfig_type)
1117{
1118 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1119
1120 switch (reconfig_type) {
1121 case IEEE80211_RECONFIG_TYPE_RESTART:
1122 iwl_mvm_restart_complete(mvm);
1123 break;
1124 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1125 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1126 break;
1127 }
1128}
1129
a0a09243 1130void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1131{
a0a09243 1132 lockdep_assert_held(&mvm->mutex);
7498cf4c 1133
91a8bcde
JB		 1134 /* firmware counters are obviously reset now, but we shouldn't
1135 * partially track so also clear the fw_reset_accu counters.
1136 */
1137 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1138
8ca151b5
JB		 1139 /* async_handlers_wk is now blocked */
1140
1141 /*
1142 * The work item could be running or queued if the
1143 * ROC time event stops just as we get here.
1144 */
c779273b 1145 flush_work(&mvm->roc_done_wk);
8ca151b5 1146
fcb6b92a 1147 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1148
1149 iwl_mvm_async_handlers_purge(mvm);
1150 /* async_handlers_list is empty and will stay empty: HW is stopped */
1151
1152 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1153 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1154
7fdf9663
MG		 1155 iwl_free_fw_paging(mvm);
1156
0a79a0c0
EP		 1157 /*
1158 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1159 * won't be called in this case).
8b2b9fbf
AN		 1160 * But make sure to cleanup interfaces that have gone down before/during
1161 * HW restart was requested.
0a79a0c0 1162 */
8b2b9fbf
AN		 1163 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1164 ieee80211_iterate_interfaces(mvm->hw, 0,
1165 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1166
963221be
AB		 1167 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1168 * make sure there's nothing left there and warn if any is found.
1169 */
859d914c 1170 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1171 int i;
1172
507e4cda 1173 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1174 if (WARN_ONCE(mvm->scan_uid_status[i],
1175 "UMAC scan UID %d status was not cleaned\n",
1176 i))
1177 mvm->scan_uid_status[i] = 0;
963221be
AB		 1178 }
1179 }
a0a09243 1180}
bc44886d 1181
a0a09243
LC		 1182static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1183{
1184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1185
1186 flush_work(&mvm->d0i3_exit_work);
1187 flush_work(&mvm->async_handlers_wk);
24afba76 1188 flush_work(&mvm->add_stream_wk);
d2709ad7 1189 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1190 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1191
1192 mutex_lock(&mvm->mutex);
1193 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1194 mutex_unlock(&mvm->mutex);
1195
1196 /*
1197 * The worker might have been waiting for the mutex, let it run and
1198 * discover that its list is now empty.
1199 */
1200 cancel_work_sync(&mvm->async_handlers_wk);
1201}
1202
fe0f2de3
IP		 1203static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1204{
1205 u16 i;
1206
1207 lockdep_assert_held(&mvm->mutex);
1208
1209 for (i = 0; i < NUM_PHY_CTX; i++)
1210 if (!mvm->phy_ctxts[i].ref)
1211 return &mvm->phy_ctxts[i];
1212
1213 IWL_ERR(mvm, "No available PHY context\n");
1214 return NULL;
1215}
1216
d44c3fe6
AA		 1217static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1218 s16 tx_power)
1219{
1220 struct iwl_dev_tx_power_cmd cmd = {
da03f029
JB		 1221 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1222 .v2.mac_context_id =
d44c3fe6 1223 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
da03f029 1224 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1225 };
da03f029 1226 int len = sizeof(cmd);
d44c3fe6 1227
d44c3fe6 1228 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
da03f029 1229 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1230
da03f029
JB		 1231 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1232 len = sizeof(cmd.v2);
1233
1234 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1235}
1236
8ca151b5
JB		 1237static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1238 struct ieee80211_vif *vif)
1239{
1240 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1241 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1242 int ret;
1243
aa5e1832
EG		 1244 mvmvif->mvm = mvm;
1245
d40fc489
GG		 1246 /*
1247 * make sure D0i3 exit is completed, otherwise a target access
1248 * during tx queue configuration could be done when still in
1249 * D0i3 state.
1250 */
1251 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1252 if (ret)
1253 return ret;
1254
8ca151b5
JB		 1255 /*
1256 * Not much to do here. The stack will not allow interface
1257 * types or combinations that we didn't advertise, so we
1258 * don't really have to check the types.
1259 */
1260
1261 mutex_lock(&mvm->mutex);
1262
33cef925
JB		 1263 /* make sure that beacon statistics don't go backwards with FW reset */
1264 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1265 mvmvif->beacon_stats.accu_num_beacons +=
1266 mvmvif->beacon_stats.num_beacons;
1267
e89044d7 1268 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1269 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1270 if (ret)
1271 goto out_unlock;
1272
1c2abf72 1273 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1274 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1275 mvm->vif_count++;
ea183d02 1276
8ca151b5
JB		 1277 /*
1278 * The AP binding flow can be done only after the beacon
1279 * template is configured (which happens only in the mac80211
1280 * start_ap() flow), and adding the broadcast station can happen
1281 * only after the binding.
1282 * In addition, since modifying the MAC before adding a bcast
1283 * station is not allowed by the FW, delay the adding of MAC context to
1284 * the point where we can also add the bcast station.
1285 * In short: there's not much we can do at this point, other than
1286 * allocating resources :)
1287 */
5023d966
JB		 1288 if (vif->type == NL80211_IFTYPE_AP ||
1289 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1290 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1291 if (ret) {
1292 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1293 goto out_release;
1294 }
1295
77740cb4 1296 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1297 goto out_unlock;
1298 }
1299
93190fb0
AA		 1300 mvmvif->features |= hw->netdev_features;
1301
8ca151b5
JB		 1302 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1303 if (ret)
1304 goto out_release;
1305
999609f1 1306 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1307 if (ret)
fd66fc1c 1308 goto out_remove_mac;
8ca151b5 1309
7df15b1e 1310 /* beacon filtering */
a1022927 1311 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1312 if (ret)
1313 goto out_remove_mac;
1314
7df15b1e 1315 if (!mvm->bf_allowed_vif &&
73e5f2c5 1316 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1317 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1318 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1319 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1320 }
1321
8ca151b5
JB		 1322 /*
1323 * P2P_DEVICE interface does not have a channel context assigned to it,
1324 * so a dedicated PHY context is allocated to it and the corresponding
1325 * MAC context is bound to it at this stage.
1326 */
1327 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1328
fe0f2de3
IP		 1329 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1330 if (!mvmvif->phy_ctxt) {
1331 ret = -ENOSPC;
bd3351ba 1332 goto out_free_bf;
fe0f2de3 1333 }
8ca151b5 1334
53a9d61e 1335 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1336 ret = iwl_mvm_binding_add_vif(mvm, vif);
1337 if (ret)
53a9d61e 1338 goto out_unref_phy;
8ca151b5 1339
013290aa 1340 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1341 if (ret)
1342 goto out_unbind;
1343
1344 /* Save a pointer to p2p device vif, so it can later be used to
1345 * update the p2p device MAC when a GO is started/stopped */
1346 mvm->p2p_device_vif = vif;
1347 }
1348
63494374 1349 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1350 goto out_unlock;
1351
1352 out_unbind:
1353 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1354 out_unref_phy:
fe0f2de3 1355 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1356 out_free_bf:
1357 if (mvm->bf_allowed_vif == mvmvif) {
1358 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1359 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1360 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1361 }
8ca151b5
JB		 1362 out_remove_mac:
1363 mvmvif->phy_ctxt = NULL;
1364 iwl_mvm_mac_ctxt_remove(mvm, vif);
1365 out_release:
5ee2b215
AB		 1366 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1367 mvm->vif_count--;
1c2abf72 1368
8ca151b5
JB		 1369 iwl_mvm_mac_ctxt_release(mvm, vif);
1370 out_unlock:
1371 mutex_unlock(&mvm->mutex);
1372
d40fc489
GG		 1373 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1374
8ca151b5
JB		 1375 return ret;
1376}
1377
38a12b5b
JB		 1378static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1379 struct ieee80211_vif *vif)
8ca151b5 1380{
d92b732e 1381 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1382
1383 if (tfd_msk) {
fe92e32a
EG		 1384 /*
1385 * mac80211 first removes all the stations of the vif and
1386 * then removes the vif. When it removes a station it also
1387 * flushes the AMPDU session. So by now, all the AMPDU sessions
1388 * of all the stations of this vif are closed, and the queues
1389 * of these AMPDU sessions are properly closed.
1390 * We still need to take care of the shared queues of the vif.
1391 * Flush them here.
1392 */
8ca151b5 1393 mutex_lock(&mvm->mutex);
5888a40c 1394 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1395 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1396
1397 /*
1398 * There are transports that buffer a few frames in the host.
1399 * For these, the flush above isn't enough since while we were
1400 * flushing, the transport might have sent more frames to the
1401 * device. To solve this, wait here until the transport is
1402 * empty. Technically, this could have replaced the flush
1403 * above, but flush is much faster than draining. So flush
1404 * first, and drain to make sure we have no frames in the
1405 * transport anymore.
1406 * If a station still had frames on the shared queues, it is
1407 * already marked as draining, so to complete the draining, we
1408 * just need to wait until the transport is empty.
1409 */
1410 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1411 }
1412
1413 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1414 /*
1415 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1416 * We assume here that all the packets sent to the OFFCHANNEL
1417 * queue are sent in ROC session.
1418 */
1419 flush_work(&mvm->roc_done_wk);
1420 } else {
1421 /*
1422 * By now, all the AC queues are empty. The AGG queues are
1423 * empty too. We already got all the Tx responses for all the
1424 * packets in the queues. The drain work can have been
0742a75a 1425 * triggered. Flush it.
8ca151b5
JB		 1426 */
1427 flush_work(&mvm->sta_drained_wk);
1428 }
38a12b5b
JB		 1429}
1430
1431static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1432 struct ieee80211_vif *vif)
1433{
1434 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1435 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1436
1437 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1438
1439 mutex_lock(&mvm->mutex);
1440
7df15b1e
HG		 1441 if (mvm->bf_allowed_vif == mvmvif) {
1442 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1443 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1444 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1445 }
1446
63494374
JB		 1447 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1448
8ca151b5
JB		 1449 /*
1450 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1451 * interface is be handled as part of the stop_ap flow.
8ca151b5 1452 */
5023d966
JB		 1453 if (vif->type == NL80211_IFTYPE_AP ||
1454 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1455#ifdef CONFIG_NL80211_TESTMODE
1456 if (vif == mvm->noa_vif) {
1457 mvm->noa_vif = NULL;
1458 mvm->noa_duration = 0;
1459 }
1460#endif
013290aa 1461 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1462 goto out_release;
1463 }
1464
1465 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1466 mvm->p2p_device_vif = NULL;
013290aa 1467 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1468 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1469 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1470 mvmvif->phy_ctxt = NULL;
1471 }
1472
5ee2b215 1473 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1474 mvm->vif_count--;
1c2abf72 1475
999609f1 1476 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1477 iwl_mvm_mac_ctxt_remove(mvm, vif);
1478
1479out_release:
1480 iwl_mvm_mac_ctxt_release(mvm, vif);
1481 mutex_unlock(&mvm->mutex);
1482}
1483
1484static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1485{
8ca151b5
JB		 1486 return 0;
1487}
1488
e59647ea
EP		 1489struct iwl_mvm_mc_iter_data {
1490 struct iwl_mvm *mvm;
1491 int port_id;
1492};
1493
1494static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1495 struct ieee80211_vif *vif)
1496{
1497 struct iwl_mvm_mc_iter_data *data = _data;
1498 struct iwl_mvm *mvm = data->mvm;
1499 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1500 int ret, len;
1501
1502 /* if we don't have free ports, mcast frames will be dropped */
1503 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1504 return;
1505
1506 if (vif->type != NL80211_IFTYPE_STATION ||
1507 !vif->bss_conf.assoc)
1508 return;
1509
1510 cmd->port_id = data->port_id++;
1511 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1512 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1513
1c4abec0 1514 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1515 if (ret)
1516 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1517}
1518
1519static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1520{
1521 struct iwl_mvm_mc_iter_data iter_data = {
1522 .mvm = mvm,
88f2fd73
MG		 1523 };
1524
e59647ea
EP		 1525 lockdep_assert_held(&mvm->mutex);
1526
1527 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1528 return;
1529
1c4abec0 1530 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1531 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1532 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1533}
1534
e59647ea
EP		 1535static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1536 struct netdev_hw_addr_list *mc_list)
8ca151b5 1537{
e59647ea
EP		 1538 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1539 struct iwl_mcast_filter_cmd *cmd;
1540 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1541 int addr_count;
1542 bool pass_all;
e59647ea
EP		 1543 int len;
1544
f3bd58f4
MS		 1545 addr_count = netdev_hw_addr_list_count(mc_list);
1546 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1547 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1548 if (pass_all)
e59647ea 1549 addr_count = 0;
e59647ea
EP		 1550
1551 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1552 cmd = kzalloc(len, GFP_ATOMIC);
1553 if (!cmd)
1554 return 0;
1555
1556 if (pass_all) {
1557 cmd->pass_all = 1;
1558 return (u64)(unsigned long)cmd;
1559 }
1560
1561 netdev_hw_addr_list_for_each(addr, mc_list) {
1562 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1563 cmd->count, addr->addr);
1564 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1565 addr->addr, ETH_ALEN);
1566 cmd->count++;
1567 }
1568
1569 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1570}
1571
1572static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1573 unsigned int changed_flags,
1574 unsigned int *total_flags,
1575 u64 multicast)
1576{
e59647ea
EP		 1577 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1578 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1579
e59647ea 1580 mutex_lock(&mvm->mutex);
51b6b9e0 1581
e59647ea
EP		 1582 /* replace previous configuration */
1583 kfree(mvm->mcast_filter_cmd);
1584 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1585
e59647ea
EP		 1586 if (!cmd)
1587 goto out;
51b6b9e0 1588
e59647ea
EP		 1589 iwl_mvm_recalc_multicast(mvm);
1590out:
1591 mutex_unlock(&mvm->mutex);
1592 *total_flags = 0;
51b6b9e0
EG		 1593}
1594
effd1929
AO		 1595static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1596 struct ieee80211_vif *vif,
1597 unsigned int filter_flags,
1598 unsigned int changed_flags)
1599{
1600 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1601
1602 /* We support only filter for probe requests */
1603 if (!(changed_flags & FIF_PROBE_REQ))
1604 return;
1605
1606 /* Supported only for p2p client interfaces */
1607 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1608 !vif->p2p)
1609 return;
1610
1611 mutex_lock(&mvm->mutex);
1612 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1613 mutex_unlock(&mvm->mutex);
1614}
1615
c87163b9
EP		 1616#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1617struct iwl_bcast_iter_data {
1618 struct iwl_mvm *mvm;
1619 struct iwl_bcast_filter_cmd *cmd;
1620 u8 current_filter;
1621};
1622
1623static void
1624iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1625 const struct iwl_fw_bcast_filter *in_filter,
1626 struct iwl_fw_bcast_filter *out_filter)
1627{
1628 struct iwl_fw_bcast_filter_attr *attr;
1629 int i;
1630
1631 memcpy(out_filter, in_filter, sizeof(*out_filter));
1632
1633 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1634 attr = &out_filter->attrs[i];
1635
1636 if (!attr->mask)
1637 break;
1638
2ee8f021
EP		 1639 switch (attr->reserved1) {
1640 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1641 if (vif->bss_conf.arp_addr_cnt != 1) {
1642 attr->mask = 0;
1643 continue;
1644 }
1645
1646 attr->val = vif->bss_conf.arp_addr_list[0];
1647 break;
1648 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1649 attr->val = *(__be32 *)&vif->addr[2];
1650 break;
1651 default:
1652 break;
1653 }
1654 attr->reserved1 = 0;
c87163b9
EP		 1655 out_filter->num_attrs++;
1656 }
1657}
1658
1659static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1660 struct ieee80211_vif *vif)
1661{
1662 struct iwl_bcast_iter_data *data = _data;
1663 struct iwl_mvm *mvm = data->mvm;
1664 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1665 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1666 struct iwl_fw_bcast_mac *bcast_mac;
1667 int i;
1668
1669 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1670 return;
1671
1672 bcast_mac = &cmd->macs[mvmvif->id];
1673
e48393e8
IP		 1674 /*
1675 * enable filtering only for associated stations, but not for P2P
1676 * Clients
1677 */
1678 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1679 !vif->bss_conf.assoc)
c87163b9
EP		 1680 return;
1681
1682 bcast_mac->default_discard = 1;
1683
1684 /* copy all configured filters */
1685 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1686 /*
1687 * Make sure we don't exceed our filters limit.
1688 * if there is still a valid filter to be configured,
1689 * be on the safe side and just allow bcast for this mac.
1690 */
1691 if (WARN_ON_ONCE(data->current_filter >=
1692 ARRAY_SIZE(cmd->filters))) {
1693 bcast_mac->default_discard = 0;
1694 bcast_mac->attached_filters = 0;
1695 break;
1696 }
1697
1698 iwl_mvm_set_bcast_filter(vif,
1699 &mvm->bcast_filters[i],
1700 &cmd->filters[data->current_filter]);
1701
1702 /* skip current filter if it contains no attributes */
1703 if (!cmd->filters[data->current_filter].num_attrs)
1704 continue;
1705
1706 /* attach the filter to current mac */
1707 bcast_mac->attached_filters |=
1708 cpu_to_le16(BIT(data->current_filter));
1709
1710 data->current_filter++;
1711 }
1712}
1713
de06a59e
EP		 1714bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1715 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1716{
c87163b9
EP		 1717 struct iwl_bcast_iter_data iter_data = {
1718 .mvm = mvm,
de06a59e 1719 .cmd = cmd,
c87163b9
EP		 1720 };
1721
3b8983b1
MS		 1722 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1723 return false;
1724
de06a59e
EP		 1725 memset(cmd, 0, sizeof(*cmd));
1726 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1727 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1728
1729#ifdef CONFIG_IWLWIFI_DEBUGFS
1730 /* use debugfs filters/macs if override is configured */
1731 if (mvm->dbgfs_bcast_filtering.override) {
1732 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1733 sizeof(cmd->filters));
1734 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1735 sizeof(cmd->macs));
1736 return true;
1737 }
1738#endif
c87163b9
EP		 1739
1740 /* if no filters are configured, do nothing */
1741 if (!mvm->bcast_filters)
de06a59e 1742 return false;
c87163b9
EP		 1743
1744 /* configure and attach these filters for each associated sta vif */
1745 ieee80211_iterate_active_interfaces(
1746 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1747 iwl_mvm_bcast_filter_iterator, &iter_data);
1748
de06a59e
EP		 1749 return true;
1750}
34672bb3
EP		 1751
1752static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1753{
1754 struct iwl_bcast_filter_cmd cmd;
1755
1756 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1757 return 0;
1758
1759 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1760 return 0;
1761
a1022927 1762 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1763 sizeof(cmd), &cmd);
1764}
1765#else
34672bb3 1766static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1767{
1768 return 0;
1769}
1770#endif
1771
a07a8f37
SS		 1772static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1773 struct ieee80211_vif *vif)
1774{
1775 struct iwl_mu_group_mgmt_cmd cmd = {};
1776
1777 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1778 WLAN_MEMBERSHIP_LEN);
1779 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1780 WLAN_USER_POSITION_LEN);
1781
1782 return iwl_mvm_send_cmd_pdu(mvm,
1783 WIDE_ID(DATA_PATH_GROUP,
1784 UPDATE_MU_GROUPS_CMD),
1785 0, sizeof(cmd), &cmd);
1786}
1787
f92659a1
SS		 1788static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1789 struct ieee80211_vif *vif)
1790{
1791 if (vif->mu_mimo_owner) {
1792 struct iwl_mu_group_mgmt_notif *notif = _data;
1793
1794 /*
1795 * MU-MIMO Group Id action frame is little endian. We treat
1796 * the data received from firmware as if it came from the
1797 * action frame, so no conversion is needed.
1798 */
1799 ieee80211_update_mu_groups(vif,
1800 (u8 *)&notif->membership_status,
1801 (u8 *)&notif->user_position);
1802 }
1803}
1804
1805void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1806 struct iwl_rx_cmd_buffer *rxb)
1807{
1808 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1809 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1810
1811 ieee80211_iterate_active_interfaces_atomic(
1812 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1813 iwl_mvm_mu_mimo_iface_iterator, notif);
1814}
1815
8ca151b5
JB		 1816static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1817 struct ieee80211_vif *vif,
1818 struct ieee80211_bss_conf *bss_conf,
1819 u32 changes)
1820{
1821 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1822 int ret;
1823
6e97b0d2
IP		 1824 /*
1825 * Re-calculate the tsf id, as the master-slave relations depend on the
1826 * beacon interval, which was not known when the station interface was
1827 * added.
1828 */
1829 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1830 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1831
03098268
AE		 1832 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1833 mvmvif->lqm_active)
1834 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1835 0, 0);
1836
3dfd3a97
JB		 1837 /*
1838 * If we're not associated yet, take the (new) BSSID before associating
1839 * so the firmware knows. If we're already associated, then use the old
1840 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1841 * branch for disassociation below.
1842 */
1843 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1844 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1845
1846 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1847 if (ret)
1848 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1849
3dfd3a97
JB		 1850 /* after sending it once, adopt mac80211 data */
1851 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1852 mvmvif->associated = bss_conf->assoc;
1853
8ca151b5
JB		 1854 if (changes & BSS_CHANGED_ASSOC) {
1855 if (bss_conf->assoc) {
33cef925
JB		 1856 /* clear statistics to get clean beacon counter */
1857 iwl_mvm_request_statistics(mvm, true);
1858 memset(&mvmvif->beacon_stats, 0,
1859 sizeof(mvmvif->beacon_stats));
1860
8ca151b5 1861 /* add quota for this interface */
7754ae79 1862 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1863 if (ret) {
1864 IWL_ERR(mvm, "failed to update quotas\n");
1865 return;
1866 }
016d27e1
JB		 1867
1868 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1869 &mvm->status)) {
1870 /*
1871 * If we're restarting then the firmware will
1872 * obviously have lost synchronisation with
1873 * the AP. It will attempt to synchronise by
1874 * itself, but we can make it more reliable by
1875 * scheduling a session protection time event.
1876 *
1877 * The firmware needs to receive a beacon to
1878 * catch up with synchronisation, use 110% of
1879 * the beacon interval.
1880 *
1881 * Set a large maximum delay to allow for more
1882 * than a single interface.
1883 */
1884 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1885 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1886 5 * dur, false);
016d27e1 1887 }
1f3b0ff8
LE		 1888
1889 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1890 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1891 if (vif->p2p) {
29a90a49 1892 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1893 iwl_mvm_update_smps(mvm, vif,
1894 IWL_MVM_SMPS_REQ_PROT,
1895 IEEE80211_SMPS_DYNAMIC);
1896 }
8ca151b5 1897 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1898 /*
1899 * If update fails - SF might be running in associated
1900 * mode while disassociated - which is forbidden.
1901 */
1902 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1903 "Failed to update SF upon disassociation\n");
1904
8ca151b5
JB		 1905 /* remove AP station now that the MAC is unassoc */
1906 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1907 if (ret)
1908 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1909
1910 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1911 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1912 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1913 /* remove quota for this interface */
7754ae79 1914 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1915 if (ret)
1916 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1917
1918 if (vif->p2p)
1919 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1920
1921 /* this will take the cleared BSSID from bss_conf */
1922 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1923 if (ret)
1924 IWL_ERR(mvm,
1925 "failed to update MAC %pM (clear after unassoc)\n",
1926 vif->addr);
8ca151b5 1927 }
a20fd398 1928
a07a8f37
SS		 1929 /*
1930 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1931 * However, on HW restart we should restore this data.
a07a8f37
SS		 1932 */
1933 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 1934 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 1935 ret = iwl_mvm_update_mu_groups(mvm, vif);
1936 if (ret)
1937 IWL_ERR(mvm,
1938 "failed to update VHT MU_MIMO groups\n");
1939 }
1940
e59647ea 1941 iwl_mvm_recalc_multicast(mvm);
34672bb3 1942 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 1943
a20fd398
AO		 1944 /* reset rssi values */
1945 mvmvif->bf_data.ave_beacon_signal = 0;
1946
8e484f0b 1947 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1948 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1949 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 1950 if (fw_has_capa(&mvm->fw->ucode_capa,
1951 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1952 iwl_mvm_config_scan(mvm);
989c6505 1953 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1954 /*
1955 * We received a beacon _after_ association so
1956 * remove the session protection.
1957 */
1958 iwl_mvm_remove_time_event(mvm, mvmvif,
1959 &mvmvif->time_event_data);
8ca151b5 1960 }
cc87d322
EH		 1961
1962 if (changes & BSS_CHANGED_BEACON_INFO) {
1963 iwl_mvm_sf_update(mvm, vif, false);
1964 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1965 }
1966
283115fb
AA		 1967 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
1968 /*
1969 * Send power command on every beacon change,
1970 * because we may have not enabled beacon abort yet.
1971 */
1972 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 1973 ret = iwl_mvm_power_update_mac(mvm);
1974 if (ret)
1975 IWL_ERR(mvm, "failed to update power mode\n");
1976 }
1977
88f2fd73
MG		 1978 if (changes & BSS_CHANGED_TXPOWER) {
1979 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1980 bss_conf->txpower);
1981 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1982 }
a20fd398
AO		 1983
1984 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1985 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1986 /* reset cqm events tracking */
1987 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1988 if (mvmvif->bf_data.bf_enabled) {
1989 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1990 if (ret)
1991 IWL_ERR(mvm,
1992 "failed to update CQM thresholds\n");
1993 }
a20fd398 1994 }
2ee8f021
EP		 1995
1996 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1997 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 1998 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 1999 }
8ca151b5
JB		 2000}
2001
5023d966
JB		 2002static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2003 struct ieee80211_vif *vif)
8ca151b5
JB		 2004{
2005 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2006 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2007 int ret;
2008
576eeee9
EP		 2009 /*
2010 * iwl_mvm_mac_ctxt_add() might read directly from the device
2011 * (the system time), so make sure it is available.
2012 */
2013 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2014 if (ret)
2015 return ret;
2016
8ca151b5
JB		 2017 mutex_lock(&mvm->mutex);
2018
2019 /* Send the beacon template */
2020 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2021 if (ret)
2022 goto out_unlock;
2023
6e97b0d2
IP		 2024 /*
2025 * Re-calculate the tsf id, as the master-slave relations depend on the
2026 * beacon interval, which was not known when the AP interface was added.
2027 */
2028 if (vif->type == NL80211_IFTYPE_AP)
2029 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2030
94939080
GG		 2031 mvmvif->ap_assoc_sta_count = 0;
2032
8ca151b5
JB		 2033 /* Add the mac context */
2034 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2035 if (ret)
2036 goto out_unlock;
2037
2038 /* Perform the binding */
2039 ret = iwl_mvm_binding_add_vif(mvm, vif);
2040 if (ret)
2041 goto out_remove;
2042
8ca151b5
JB		 2043 /* Send the bcast station. At this stage the TBTT and DTIM time events
2044 * are added and applied to the scheduler */
013290aa 2045 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2046 if (ret)
2047 goto out_unbind;
2048
5691e218
IP		 2049 /* must be set before quota calculations */
2050 mvmvif->ap_ibss_active = true;
2051
a11e144e 2052 /* power updated needs to be done before quotas */
999609f1 2053 iwl_mvm_power_update_mac(mvm);
a11e144e 2054
7754ae79 2055 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2056 if (ret)
a11e144e 2057 goto out_quota_failed;
8ca151b5 2058
5023d966 2059 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2060 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2061 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2062
29a90a49
EP		 2063 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2064
8e484f0b 2065 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2066
f697267f
AN		 2067 /* we don't support TDLS during DCM */
2068 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2069 iwl_mvm_teardown_tdls_peers(mvm);
2070
939e4904 2071 goto out_unlock;
8ca151b5 2072
a11e144e 2073out_quota_failed:
999609f1 2074 iwl_mvm_power_update_mac(mvm);
5691e218 2075 mvmvif->ap_ibss_active = false;
013290aa 2076 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2077out_unbind:
2078 iwl_mvm_binding_remove_vif(mvm, vif);
2079out_remove:
2080 iwl_mvm_mac_ctxt_remove(mvm, vif);
2081out_unlock:
2082 mutex_unlock(&mvm->mutex);
576eeee9 2083 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2084 return ret;
2085}
2086
5023d966
JB		 2087static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2088 struct ieee80211_vif *vif)
8ca151b5
JB		 2089{
2090 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2091 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2092
38a12b5b
JB		 2093 iwl_mvm_prepare_mac_removal(mvm, vif);
2094
8ca151b5
JB		 2095 mutex_lock(&mvm->mutex);
2096
664322fa 2097 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2098 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2099 iwl_mvm_remove_time_event(mvm, mvmvif,
2100 &mvmvif->time_event_data);
664322fa 2101 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2102 mvmvif->csa_countdown = false;
7f0a7c67 2103 }
664322fa 2104
003e5236
AO		 2105 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2106 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2107 mvm->csa_tx_block_bcn_timeout = 0;
2108 }
2109
5023d966 2110 mvmvif->ap_ibss_active = false;
1c87bbad 2111 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2112
8e484f0b 2113 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2114
29a90a49
EP		 2115 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2116
5023d966 2117 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2118 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2119 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2120
7754ae79 2121 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2122 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2123 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2124
999609f1 2125 iwl_mvm_power_update_mac(mvm);
a11e144e 2126
8ca151b5
JB		 2127 iwl_mvm_mac_ctxt_remove(mvm, vif);
2128
2129 mutex_unlock(&mvm->mutex);
2130}
2131
5023d966
JB		 2132static void
2133iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2134 struct ieee80211_vif *vif,
2135 struct ieee80211_bss_conf *bss_conf,
2136 u32 changes)
8ca151b5 2137{
be2056fc 2138 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2139
be2056fc
IP		 2140 /* Changes will be applied when the AP/IBSS is started */
2141 if (!mvmvif->ap_ibss_active)
2142 return;
2143
863230da 2144 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2145 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2146 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2147 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2148
8ca151b5 2149 /* Need to send a new beacon template to the FW */
863230da
JB		 2150 if (changes & BSS_CHANGED_BEACON &&
2151 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2152 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2153
2154 if (changes & BSS_CHANGED_TXPOWER) {
2155 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2156 bss_conf->txpower);
2157 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2158 }
8ca151b5
JB		 2159}
2160
2161static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2162 struct ieee80211_vif *vif,
2163 struct ieee80211_bss_conf *bss_conf,
2164 u32 changes)
2165{
2166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2167
576eeee9
EP		 2168 /*
2169 * iwl_mvm_bss_info_changed_station() might call
2170 * iwl_mvm_protect_session(), which reads directly from
2171 * the device (the system time), so make sure it is available.
2172 */
2173 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2174 return;
2175
8ca151b5
JB		 2176 mutex_lock(&mvm->mutex);
2177
723f02ed 2178 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2179 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2180
8ca151b5
JB		 2181 switch (vif->type) {
2182 case NL80211_IFTYPE_STATION:
2183 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2184 break;
2185 case NL80211_IFTYPE_AP:
5023d966
JB		 2186 case NL80211_IFTYPE_ADHOC:
2187 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2188 break;
2189 default:
2190 /* shouldn't happen */
2191 WARN_ON_ONCE(1);
2192 }
2193
2194 mutex_unlock(&mvm->mutex);
576eeee9 2195 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2196}
2197
2198static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2199 struct ieee80211_vif *vif,
c56ef672 2200 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2201{
2202 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2203 int ret;
2204
6749dd80
LC		 2205 if (hw_req->req.n_channels == 0 ||
2206 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2207 return -EINVAL;
2208
2209 mutex_lock(&mvm->mutex);
6749dd80 2210 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2211 mutex_unlock(&mvm->mutex);
6749dd80 2212
8ca151b5
JB		 2213 return ret;
2214}
2215
2216static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2217 struct ieee80211_vif *vif)
2218{
2219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2220
2221 mutex_lock(&mvm->mutex);
2222
e7d3abab
LC		 2223 /* Due to a race condition, it's possible that mac80211 asks
2224 * us to stop a hw_scan when it's already stopped. This can
2225 * happen, for instance, if we stopped the scan ourselves,
2226 * called ieee80211_scan_completed() and the userspace called
2227 * cancel scan scan before ieee80211_scan_work() could run.
2228 * To handle that, simply return if the scan is not running.
2229 */
262888fc 2230 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2231 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2232
2233 mutex_unlock(&mvm->mutex);
2234}
2235
2236static void
2237iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2238 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2239 int num_frames,
2240 enum ieee80211_frame_release_type reason,
2241 bool more_data)
2242{
2243 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2244
3e56eadf 2245 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2246
3e56eadf
JB		 2247 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2248 tids, more_data, false);
2249}
2250
2251static void
2252iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2253 struct ieee80211_sta *sta, u16 tids,
2254 int num_frames,
2255 enum ieee80211_frame_release_type reason,
2256 bool more_data)
2257{
2258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2259
2260 /* Called when we need to transmit (a) frame(s) from agg queue */
2261
2262 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2263 tids, more_data, true);
8ca151b5
JB		 2264}
2265
2266static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2267 struct ieee80211_vif *vif,
2268 enum sta_notify_cmd cmd,
2269 struct ieee80211_sta *sta)
2270{
2271 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2272 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2273 unsigned long txqs = 0, tids = 0;
3e56eadf 2274 int tid;
8ca151b5 2275
c22b0ff5
EG		 2276 spin_lock_bh(&mvmsta->lock);
2277 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2278 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2279
2280 if (tid_data->state != IWL_AGG_ON &&
2281 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2282 continue;
2283
2284 __set_bit(tid_data->txq_id, &txqs);
2285
2286 if (iwl_mvm_tid_queued(tid_data) == 0)
2287 continue;
2288
2289 __set_bit(tid, &tids);
2290 }
2291
8ca151b5
JB		 2292 switch (cmd) {
2293 case STA_NOTIFY_SLEEP:
e3d4bc8c 2294 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2295 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2296
c22b0ff5 2297 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2298 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2299
2300 if (txqs)
2301 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2302 /*
2303 * The fw updates the STA to be asleep. Tx packets on the Tx
2304 * queues to this station will not be transmitted. The fw will
2305 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2306 */
2307 break;
2308 case STA_NOTIFY_AWAKE:
881acd89 2309 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2310 break;
c22b0ff5
EG		 2311
2312 if (txqs)
2313 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2314 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2315 break;
2316 default:
2317 break;
2318 }
c22b0ff5 2319 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2320}
2321
1ddbbb0c
JB		 2322static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2323 struct ieee80211_vif *vif,
2324 struct ieee80211_sta *sta)
2325{
2326 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2327 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2328
2329 /*
2330 * This is called before mac80211 does RCU synchronisation,
2331 * so here we already invalidate our internal RCU-protected
2332 * station pointer. The rest of the code will thus no longer
2333 * be able to find the station this way, and we don't rely
2334 * on further RCU synchronisation after the sta_state()
2335 * callback deleted the station.
2336 */
2337 mutex_lock(&mvm->mutex);
2338 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2339 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2340 ERR_PTR(-ENOENT));
94939080 2341
1ddbbb0c
JB		 2342 mutex_unlock(&mvm->mutex);
2343}
2344
bd1ba664
JB		 2345static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2346 const u8 *bssid)
2347{
2348 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2349 return;
2350
cee5a882
AA		 2351 if (vif->p2p && !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm)) {
2352 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2353 return;
2354 }
2355
11dee0b4
EG		 2356 if (!vif->p2p &&
2357 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2358 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2359 return;
2360 }
2361
2362 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2363}
2364
1e8f1329
GBA		 2365static void
2366iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2367 struct ieee80211_vif *vif, u8 *peer_addr,
2368 enum nl80211_tdls_operation action)
2369{
2370 struct iwl_fw_dbg_trigger_tlv *trig;
2371 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2372
2373 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2374 return;
2375
2376 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2377 tdls_trig = (void *)trig->data;
2378 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2379 return;
2380
2381 if (!(tdls_trig->action_bitmap & BIT(action)))
2382 return;
2383
2384 if (tdls_trig->peer_mode &&
2385 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2386 return;
2387
2388 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2389 "TDLS event occurred, peer %pM, action %d",
2390 peer_addr, action);
2391}
2392
24afba76
LK		 2393static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2394 struct iwl_mvm_sta *mvm_sta)
2395{
2396 struct iwl_mvm_tid_data *tid_data;
2397 struct sk_buff *skb;
2398 int i;
2399
2400 spin_lock_bh(&mvm_sta->lock);
2401 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2402 tid_data = &mvm_sta->tid_data[i];
2403 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
2404 ieee80211_free_txskb(mvm->hw, skb);
2405 }
2406 spin_unlock_bh(&mvm_sta->lock);
2407}
2408
8ca151b5
JB		 2409static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2410 struct ieee80211_vif *vif,
2411 struct ieee80211_sta *sta,
2412 enum ieee80211_sta_state old_state,
2413 enum ieee80211_sta_state new_state)
2414{
2415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2417 int ret;
2418
2419 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2420 sta->addr, old_state, new_state);
2421
2422 /* this would be a mac80211 bug ... but don't crash */
2423 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2424 return -EINVAL;
2425
2426 /* if a STA is being removed, reuse its ID */
2427 flush_work(&mvm->sta_drained_wk);
2428
24afba76
LK		 2429 /*
2430 * If we are in a STA removal flow and in DQA mode:
2431 *
2432 * This is after the sync_rcu part, so the queues have already been
2433 * flushed. No more TXs on their way in mac80211's path, and no more in
2434 * the queues.
2435 * Also, we won't be getting any new TX frames for this station.
2436 * What we might have are deferred TX frames that need to be taken care
2437 * of.
2438 *
2439 * Drop any still-queued deferred-frame before removing the STA, and
2440 * make sure the worker is no longer handling frames for this STA.
2441 */
2442 if (old_state == IEEE80211_STA_NONE &&
2443 new_state == IEEE80211_STA_NOTEXIST &&
2444 iwl_mvm_is_dqa_supported(mvm)) {
2445 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2446
2447 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2448 flush_work(&mvm->add_stream_wk);
2449
2450 /*
2451 * No need to make sure deferred TX indication is off since the
2452 * worker will already remove it if it was on
2453 */
2454 }
2455
8ca151b5
JB		 2456 mutex_lock(&mvm->mutex);
2457 if (old_state == IEEE80211_STA_NOTEXIST &&
2458 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2459 /*
2460 * Firmware bug - it'll crash if the beacon interval is less
2461 * than 16. We can't avoid connecting at all, so refuse the
2462 * station state change, this will cause mac80211 to abandon
2463 * attempts to connect to this AP, and eventually wpa_s will
2464 * blacklist the AP...
2465 */
2466 if (vif->type == NL80211_IFTYPE_STATION &&
2467 vif->bss_conf.beacon_int < 16) {
2468 IWL_ERR(mvm,
2469 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2470 sta->addr, vif->bss_conf.beacon_int);
2471 ret = -EINVAL;
2472 goto out_unlock;
2473 }
cf7b491d
AN		 2474
2475 if (sta->tdls &&
2476 (vif->p2p ||
fa3d07e4
AN		 2477 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2478 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2479 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2480 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2481 ret = -EBUSY;
2482 goto out_unlock;
2483 }
2484
8ca151b5 2485 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2486 if (sta->tdls && ret == 0) {
fa3d07e4 2487 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2488 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2489 NL80211_TDLS_SETUP);
2490 }
8ca151b5
JB		 2491 } else if (old_state == IEEE80211_STA_NONE &&
2492 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2493 /*
2494 * EBS may be disabled due to previous failures reported by FW.
2495 * Reset EBS status here assuming environment has been changed.
2496 */
2497 mvm->last_ebs_successful = true;
bd1ba664 2498 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2499 ret = 0;
2500 } else if (old_state == IEEE80211_STA_AUTH &&
2501 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2502 if (vif->type == NL80211_IFTYPE_AP) {
2503 mvmvif->ap_assoc_sta_count++;
2504 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2505 }
7a453973
JB		 2506 ret = iwl_mvm_update_sta(mvm, vif, sta);
2507 if (ret == 0)
2508 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2509 mvmvif->phy_ctxt->channel->band,
2510 true);
8ca151b5
JB		 2511 } else if (old_state == IEEE80211_STA_ASSOC &&
2512 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2513
2514 /* we don't support TDLS during DCM */
2515 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2516 iwl_mvm_teardown_tdls_peers(mvm);
2517
1e8f1329
GBA		 2518 if (sta->tdls)
2519 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2520 NL80211_TDLS_ENABLE_LINK);
2521
7df15b1e 2522 /* enable beacon filtering */
fa7b2e7f 2523 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2524 ret = 0;
2525 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2526 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2527 /* disable beacon filtering */
a1022927 2528 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2529 ret = 0;
2530 } else if (old_state == IEEE80211_STA_ASSOC &&
2531 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2532 if (vif->type == NL80211_IFTYPE_AP) {
2533 mvmvif->ap_assoc_sta_count--;
2534 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2535 }
8ca151b5
JB		 2536 ret = 0;
2537 } else if (old_state == IEEE80211_STA_AUTH &&
2538 new_state == IEEE80211_STA_NONE) {
2539 ret = 0;
2540 } else if (old_state == IEEE80211_STA_NONE &&
2541 new_state == IEEE80211_STA_NOTEXIST) {
2542 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2543 if (sta->tdls) {
fa3d07e4 2544 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2545 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2546 NL80211_TDLS_DISABLE_LINK);
2547 }
8ca151b5
JB		 2548 } else {
2549 ret = -EIO;
2550 }
48bc1307 2551 out_unlock:
8ca151b5
JB		 2552 mutex_unlock(&mvm->mutex);
2553
9c126cd6
LK		 2554 if (sta->tdls && ret == 0) {
2555 if (old_state == IEEE80211_STA_NOTEXIST &&
2556 new_state == IEEE80211_STA_NONE)
2557 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2558 else if (old_state == IEEE80211_STA_NONE &&
2559 new_state == IEEE80211_STA_NOTEXIST)
2560 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2561 }
2562
8ca151b5
JB		 2563 return ret;
2564}
2565
2566static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2567{
2568 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2569
2570 mvm->rts_threshold = value;
2571
2572 return 0;
2573}
2574
1f3b0ff8
LE		 2575static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2576 struct ieee80211_vif *vif,
2577 struct ieee80211_sta *sta, u32 changed)
2578{
2579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2580
2581 if (vif->type == NL80211_IFTYPE_STATION &&
2582 changed & IEEE80211_RC_NSS_CHANGED)
2583 iwl_mvm_sf_update(mvm, vif, false);
2584}
2585
8ca151b5
JB		 2586static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2587 struct ieee80211_vif *vif, u16 ac,
2588 const struct ieee80211_tx_queue_params *params)
2589{
2590 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2591 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2592
2593 mvmvif->queue_params[ac] = *params;
2594
2595 /*
2596 * No need to update right away, we'll get BSS_CHANGED_QOS
2597 * The exception is P2P_DEVICE interface which needs immediate update.
2598 */
2599 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2600 int ret;
2601
2602 mutex_lock(&mvm->mutex);
3dfd3a97 2603 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2604 mutex_unlock(&mvm->mutex);
2605 return ret;
2606 }
2607 return 0;
2608}
2609
2610static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2611 struct ieee80211_vif *vif)
2612{
2613 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2614 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2615 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2616
2617 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2618 return;
2619
576eeee9
EP		 2620 /*
2621 * iwl_mvm_protect_session() reads directly from the device
2622 * (the system time), so make sure it is available.
2623 */
2624 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2625 return;
2626
8ca151b5
JB		 2627 mutex_lock(&mvm->mutex);
2628 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2629 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2630 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2631
2632 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2633}
2634
35a000b7
DS		 2635static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2636 struct ieee80211_vif *vif,
2637 struct cfg80211_sched_scan_request *req,
633e2713 2638 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2639{
2640 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2641
35a000b7 2642 int ret;
4660dfbb 2643
35a000b7
DS		 2644 mutex_lock(&mvm->mutex);
2645
1f940386 2646 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2647 ret = -EBUSY;
2648 goto out;
2649 }
2650
19945dfb 2651 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2652
35a000b7
DS		 2653out:
2654 mutex_unlock(&mvm->mutex);
2655 return ret;
2656}
2657
37e3308c
JB		 2658static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2659 struct ieee80211_vif *vif)
35a000b7
DS		 2660{
2661 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2662 int ret;
35a000b7
DS		 2663
2664 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2665
2666 /* Due to a race condition, it's possible that mac80211 asks
2667 * us to stop a sched_scan when it's already stopped. This
2668 * can happen, for instance, if we stopped the scan ourselves,
2669 * called ieee80211_sched_scan_stopped() and the userspace called
2670 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2671 * could run. To handle this, simply return if the scan is
2672 * not running.
2673 */
262888fc 2674 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2675 mutex_unlock(&mvm->mutex);
2676 return 0;
2677 }
2678
c7d42480 2679 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2680 mutex_unlock(&mvm->mutex);
33ea27f6 2681 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2682
33ea27f6 2683 return ret;
35a000b7
DS		 2684}
2685
8ca151b5
JB		 2686static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2687 enum set_key_cmd cmd,
2688 struct ieee80211_vif *vif,
2689 struct ieee80211_sta *sta,
2690 struct ieee80211_key_conf *key)
2691{
2692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2693 struct iwl_mvm_sta *mvmsta;
2694 struct iwl_mvm_key_pn *ptk_pn;
2695 int keyidx = key->keyidx;
8ca151b5 2696 int ret;
d6ee54a9 2697 u8 key_offset;
8ca151b5
JB		 2698
2699 if (iwlwifi_mod_params.sw_crypto) {
2700 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2701 return -EOPNOTSUPP;
2702 }
2703
2704 switch (key->cipher) {
2705 case WLAN_CIPHER_SUITE_TKIP:
2706 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2707 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2708 break;
ca8c0f4b
JB		 2709 case WLAN_CIPHER_SUITE_CCMP:
2710 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2711 break;
8ca151b5 2712 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2713 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2714 break;
2715 case WLAN_CIPHER_SUITE_WEP40:
2716 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2717 /* For non-client mode, only use WEP keys for TX as we probably
2718 * don't have a station yet anyway and would then have to keep
2719 * track of the keys, linking them to each of the clients/peers
2720 * as they appear. For now, don't do that, for performance WEP
2721 * offload doesn't really matter much, but we need it for some
2722 * other offload features in client mode.
8ca151b5 2723 */
ba3943b0
JB		 2724 if (vif->type != NL80211_IFTYPE_STATION)
2725 return 0;
2726 break;
8ca151b5 2727 default:
e36e5433
MS		 2728 /* currently FW supports only one optional cipher scheme */
2729 if (hw->n_cipher_schemes &&
2730 hw->cipher_schemes->cipher == key->cipher)
2731 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2732 else
2733 return -EOPNOTSUPP;
8ca151b5
JB		 2734 }
2735
2736 mutex_lock(&mvm->mutex);
2737
2738 switch (cmd) {
2739 case SET_KEY:
5023d966
JB		 2740 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2741 vif->type == NL80211_IFTYPE_AP) && !sta) {
2742 /*
2743 * GTK on AP interface is a TX-only key, return 0;
2744 * on IBSS they're per-station and because we're lazy
2745 * we don't support them for RX, so do the same.
81279c49 2746 * CMAC in AP/IBSS modes must be done in software.
5023d966 2747 */
81279c49
JB		 2748 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
2749 ret = -EOPNOTSUPP;
2750 else
2751 ret = 0;
6caffd4f
JB		 2752 key->hw_key_idx = STA_KEY_IDX_INVALID;
2753 break;
2754 }
2755
b546dcd6
JB		 2756 /* During FW restart, in order to restore the state as it was,
2757 * don't try to reprogram keys we previously failed for.
2758 */
2759 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2760 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2761 IWL_DEBUG_MAC80211(mvm,
2762 "skip invalid idx key programming during restart\n");
2763 ret = 0;
2764 break;
2765 }
2766
f5e28eac
JB		 2767 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2768 sta && iwl_mvm_has_new_rx_api(mvm) &&
2769 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2770 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2771 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2772 struct ieee80211_key_seq seq;
2773 int tid, q;
2774
2775 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2776 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2777 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2778 mvm->trans->num_rx_queues *
2779 sizeof(ptk_pn->q[0]),
2780 GFP_KERNEL);
2781 if (!ptk_pn) {
2782 ret = -ENOMEM;
2783 break;
2784 }
2785
2786 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2787 ieee80211_get_key_rx_seq(key, tid, &seq);
2788 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2789 memcpy(ptk_pn->q[q].pn[tid],
2790 seq.ccmp.pn,
2791 IEEE80211_CCMP_PN_LEN);
2792 }
2793
2794 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2795 }
2796
d6ee54a9
LC		 2797 /* in HW restart reuse the index, otherwise request a new one */
2798 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2799 key_offset = key->hw_key_idx;
2800 else
2801 key_offset = STA_KEY_IDX_INVALID;
2802
8ca151b5 2803 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2804 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2805 if (ret) {
2806 IWL_WARN(mvm, "set key failed\n");
2807 /*
2808 * can't add key for RX, but we don't need it
2809 * in the device for TX so still return 0
2810 */
6caffd4f 2811 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2812 ret = 0;
2813 }
2814
2815 break;
2816 case DISABLE_KEY:
6caffd4f
JB		 2817 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2818 ret = 0;
2819 break;
2820 }
2821
f5e28eac
JB		 2822 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2823 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2824 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2825 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2826 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2827 ptk_pn = rcu_dereference_protected(
2828 mvmsta->ptk_pn[keyidx],
2829 lockdep_is_held(&mvm->mutex));
2830 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
2831 if (ptk_pn)
2832 kfree_rcu(ptk_pn, rcu_head);
2833 }
2834
8ca151b5
JB		 2835 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2836 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2837 break;
2838 default:
2839 ret = -EINVAL;
2840 }
2841
2842 mutex_unlock(&mvm->mutex);
2843 return ret;
2844}
2845
2846static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2847 struct ieee80211_vif *vif,
2848 struct ieee80211_key_conf *keyconf,
2849 struct ieee80211_sta *sta,
2850 u32 iv32, u16 *phase1key)
2851{
2852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2853
5023d966
JB		 2854 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2855 return;
2856
8ca151b5
JB		 2857 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2858}
2859
2860
b112889c
AM		 2861static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2862 struct iwl_rx_packet *pkt, void *data)
2863{
2864 struct iwl_mvm *mvm =
2865 container_of(notif_wait, struct iwl_mvm, notif_wait);
2866 struct iwl_hs20_roc_res *resp;
2867 int resp_len = iwl_rx_packet_payload_len(pkt);
2868 struct iwl_mvm_time_event_data *te_data = data;
2869
2870 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2871 return true;
2872
2873 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2874 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2875 return true;
2876 }
2877
2878 resp = (void *)pkt->data;
2879
2880 IWL_DEBUG_TE(mvm,
2881 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2882 resp->status, resp->event_unique_id);
2883
2884 te_data->uid = le32_to_cpu(resp->event_unique_id);
2885 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2886 te_data->uid);
2887
2888 spin_lock_bh(&mvm->time_event_lock);
2889 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2890 spin_unlock_bh(&mvm->time_event_lock);
2891
2892 return true;
2893}
2894
dc28e12f
MG		 2895#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2896#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2897#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2898#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2899#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 2900static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2901 struct ieee80211_channel *channel,
2902 struct ieee80211_vif *vif,
2903 int duration)
2904{
2905 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2906 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2907 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 2908 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 2909 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 2910 u32 dtim_interval = vif->bss_conf.dtim_period *
2911 vif->bss_conf.beacon_int;
2912 u32 req_dur, delay;
b112889c
AM		 2913 struct iwl_hs20_roc_req aux_roc_req = {
2914 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2915 .id_and_color =
2916 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2917 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2918 /* Set the channel info data */
57fbcce3 2919 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 2920 PHY_BAND_24 : PHY_BAND_5,
2921 .channel_info.channel = channel->hw_value,
2922 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2923 /* Set the time and duration */
2924 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 2925 };
2926
dc28e12f
MG		 2927 delay = AUX_ROC_MIN_DELAY;
2928 req_dur = MSEC_TO_TU(duration);
2929
2930 /*
2931 * If we are associated we want the delay time to be at least one
2932 * dtim interval so that the FW can wait until after the DTIM and
2933 * then start the time event, this will potentially allow us to
2934 * remain off-channel for the max duration.
2935 * Since we want to use almost a whole dtim interval we would also
2936 * like the delay to be for 2-3 dtim intervals, in case there are
2937 * other time events with higher priority.
2938 */
2939 if (vif->bss_conf.assoc) {
2940 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
2941 /* We cannot remain off-channel longer than the DTIM interval */
2942 if (dtim_interval <= req_dur) {
2943 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
2944 if (req_dur <= AUX_ROC_MIN_DURATION)
2945 req_dur = dtim_interval -
2946 AUX_ROC_MIN_SAFETY_BUFFER;
2947 }
2948 }
2949
2950 aux_roc_req.duration = cpu_to_le32(req_dur);
2951 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
2952
2953 IWL_DEBUG_TE(mvm,
2954 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2955 channel->hw_value, req_dur, duration, delay,
2956 dtim_interval);
b112889c
AM		 2957 /* Set the node address */
2958 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2959
a6cc5163
MG		 2960 lockdep_assert_held(&mvm->mutex);
2961
2962 spin_lock_bh(&mvm->time_event_lock);
2963
2964 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2965 spin_unlock_bh(&mvm->time_event_lock);
2966 return -EIO;
2967 }
2968
b112889c
AM		 2969 te_data->vif = vif;
2970 te_data->duration = duration;
2971 te_data->id = HOT_SPOT_CMD;
2972
b112889c
AM		 2973 spin_unlock_bh(&mvm->time_event_lock);
2974
2975 /*
2976 * Use a notification wait, which really just processes the
2977 * command response and doesn't wait for anything, in order
2978 * to be able to process the response and get the UID inside
2979 * the RX path. Using CMD_WANT_SKB doesn't work because it
2980 * stores the buffer and then wakes up this thread, by which
2981 * time another notification (that the time event started)
2982 * might already be processed unsuccessfully.
2983 */
2984 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2985 time_event_response,
2986 ARRAY_SIZE(time_event_response),
2987 iwl_mvm_rx_aux_roc, te_data);
2988
2989 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2990 &aux_roc_req);
2991
2992 if (res) {
2993 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2994 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2995 goto out_clear_te;
2996 }
2997
2998 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2999 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3000 /* should never fail */
3001 WARN_ON_ONCE(res);
3002
3003 if (res) {
3004 out_clear_te:
3005 spin_lock_bh(&mvm->time_event_lock);
3006 iwl_mvm_te_clear_data(mvm, te_data);
3007 spin_unlock_bh(&mvm->time_event_lock);
3008 }
3009
3010 return res;
3011}
3012
8ca151b5
JB		 3013static int iwl_mvm_roc(struct ieee80211_hw *hw,
3014 struct ieee80211_vif *vif,
3015 struct ieee80211_channel *channel,
d339d5ca
IP		 3016 int duration,
3017 enum ieee80211_roc_type type)
8ca151b5
JB		 3018{
3019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3021 struct cfg80211_chan_def chandef;
31d385ae
IP		 3022 struct iwl_mvm_phy_ctxt *phy_ctxt;
3023 int ret, i;
3024
3025 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3026 duration, type);
8ca151b5 3027
6ed13164
MG		 3028 flush_work(&mvm->roc_done_wk);
3029
a6cc5163
MG		 3030 mutex_lock(&mvm->mutex);
3031
b112889c
AM		 3032 switch (vif->type) {
3033 case NL80211_IFTYPE_STATION:
859d914c
JB		 3034 if (fw_has_capa(&mvm->fw->ucode_capa,
3035 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3036 /* Use aux roc framework (HS20) */
3037 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3038 vif, duration);
3039 goto out_unlock;
3040 }
3041 IWL_ERR(mvm, "hotspot not supported\n");
3042 ret = -EINVAL;
a6cc5163 3043 goto out_unlock;
b112889c
AM		 3044 case NL80211_IFTYPE_P2P_DEVICE:
3045 /* handle below */
3046 break;
3047 default:
3048 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3049 ret = -EINVAL;
3050 goto out_unlock;
8ca151b5
JB		 3051 }
3052
31d385ae
IP		 3053 for (i = 0; i < NUM_PHY_CTX; i++) {
3054 phy_ctxt = &mvm->phy_ctxts[i];
3055 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3056 continue;
3057
3058 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3059 /*
3060 * Unbind the P2P_DEVICE from the current PHY context,
3061 * and if the PHY context is not used remove it.
3062 */
3063 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3064 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3065 goto out_unlock;
3066
3067 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3068
3069 /* Bind the P2P_DEVICE to the current PHY Context */
3070 mvmvif->phy_ctxt = phy_ctxt;
3071
3072 ret = iwl_mvm_binding_add_vif(mvm, vif);
3073 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3074 goto out_unlock;
3075
3076 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3077 goto schedule_time_event;
3078 }
3079 }
3080
3081 /* Need to update the PHY context only if the ROC channel changed */
3082 if (channel == mvmvif->phy_ctxt->channel)
3083 goto schedule_time_event;
3084
8ca151b5 3085 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3086
31d385ae
IP		 3087 /*
3088 * Change the PHY context configuration as it is currently referenced
3089 * only by the P2P Device MAC
3090 */
3091 if (mvmvif->phy_ctxt->ref == 1) {
3092 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3093 &chandef, 1, 1);
3094 if (ret)
3095 goto out_unlock;
3096 } else {
3097 /*
3098 * The PHY context is shared with other MACs. Need to remove the
3099 * P2P Device from the binding, allocate an new PHY context and
3100 * create a new binding
3101 */
3102 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3103 if (!phy_ctxt) {
3104 ret = -ENOSPC;
3105 goto out_unlock;
3106 }
3107
3108 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3109 1, 1);
3110 if (ret) {
3111 IWL_ERR(mvm, "Failed to change PHY context\n");
3112 goto out_unlock;
3113 }
3114
3115 /* Unbind the P2P_DEVICE from the current PHY context */
3116 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3117 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3118 goto out_unlock;
3119
3120 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3121
3122 /* Bind the P2P_DEVICE to the new allocated PHY context */
3123 mvmvif->phy_ctxt = phy_ctxt;
3124
3125 ret = iwl_mvm_binding_add_vif(mvm, vif);
3126 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3127 goto out_unlock;
3128
3129 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3130 }
3131
3132schedule_time_event:
8ca151b5 3133 /* Schedule the time events */
e635c797 3134 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3135
31d385ae 3136out_unlock:
8ca151b5
JB		 3137 mutex_unlock(&mvm->mutex);
3138 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3139 return ret;
3140}
3141
3142static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3143{
3144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3145
3146 IWL_DEBUG_MAC80211(mvm, "enter\n");
3147
3148 mutex_lock(&mvm->mutex);
bf5da87f 3149 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3150 mutex_unlock(&mvm->mutex);
3151
3152 IWL_DEBUG_MAC80211(mvm, "leave\n");
3153 return 0;
3154}
3155
b08c1d97
LC		 3156static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3157 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3158{
fe0f2de3
IP		 3159 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3160 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3161 int ret;
3162
b08c1d97
LC		 3163 lockdep_assert_held(&mvm->mutex);
3164
53a9d61e 3165 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3166
fe0f2de3
IP		 3167 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3168 if (!phy_ctxt) {
3169 ret = -ENOSPC;
3170 goto out;
3171 }
8ca151b5 3172
dcbc3e1a 3173 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3174 ctx->rx_chains_static,
3175 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3176 if (ret) {
3177 IWL_ERR(mvm, "Failed to add PHY context\n");
3178 goto out;
3179 }
3180
53a9d61e 3181 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3182 *phy_ctxt_id = phy_ctxt->id;
3183out:
b08c1d97
LC		 3184 return ret;
3185}
3186
3187static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3188 struct ieee80211_chanctx_conf *ctx)
3189{
3190 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3191 int ret;
3192
3193 mutex_lock(&mvm->mutex);
3194 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3195 mutex_unlock(&mvm->mutex);
b08c1d97 3196
8ca151b5
JB		 3197 return ret;
3198}
3199
b08c1d97
LC		 3200static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3201 struct ieee80211_chanctx_conf *ctx)
3202{
3203 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3204 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3205
3206 lockdep_assert_held(&mvm->mutex);
3207
3208 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3209}
3210
8ca151b5
JB		 3211static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3212 struct ieee80211_chanctx_conf *ctx)
3213{
3214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3215
3216 mutex_lock(&mvm->mutex);
b08c1d97 3217 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3218 mutex_unlock(&mvm->mutex);
3219}
3220
3221static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3222 struct ieee80211_chanctx_conf *ctx,
3223 u32 changed)
3224{
3225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3226 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3227 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3228
31d385ae
IP		 3229 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3230 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3231 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3232 IEEE80211_CHANCTX_CHANGE_RADAR |
3233 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3234 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3235 phy_ctxt->ref, changed))
3236 return;
3237
8ca151b5 3238 mutex_lock(&mvm->mutex);
4d66449a 3239 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3240 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3241 ctx->rx_chains_static,
3242 ctx->rx_chains_dynamic);
3243 mutex_unlock(&mvm->mutex);
3244}
3245
b08c1d97
LC		 3246static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3247 struct ieee80211_vif *vif,
f0c97783
LC		 3248 struct ieee80211_chanctx_conf *ctx,
3249 bool switching_chanctx)
8ca151b5 3250{
fe0f2de3
IP		 3251 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3252 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3253 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3254 int ret;
3255
b08c1d97 3256 lockdep_assert_held(&mvm->mutex);
8ca151b5 3257
fe0f2de3 3258 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3259
3260 switch (vif->type) {
3261 case NL80211_IFTYPE_AP:
4741dd04
LC		 3262 /* only needed if we're switching chanctx (i.e. during CSA) */
3263 if (switching_chanctx) {
bd3398e2
AO		 3264 mvmvif->ap_ibss_active = true;
3265 break;
3266 }
5023d966 3267 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3268 /*
3269 * The AP binding flow is handled as part of the start_ap flow
5023d966 3270 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3271 */
3272 ret = 0;
b08c1d97 3273 goto out;
8ca151b5 3274 case NL80211_IFTYPE_STATION:
2533edce 3275 break;
8ca151b5 3276 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3277 /* always disable PS when a monitor interface is active */
3278 mvmvif->ps_disabled = true;
8ca151b5
JB		 3279 break;
3280 default:
3281 ret = -EINVAL;
b08c1d97 3282 goto out;
8ca151b5
JB		 3283 }
3284
3285 ret = iwl_mvm_binding_add_vif(mvm, vif);
3286 if (ret)
b08c1d97 3287 goto out;
8ca151b5
JB		 3288
3289 /*
92d85562
AB		 3290 * Power state must be updated before quotas,
3291 * otherwise fw will complain.
3292 */
999609f1 3293 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3294
3295 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3296 * interfaces. For the other types, the bss_info changed flow
3297 * will handle quota settings.
3298 */
3299 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3300 mvmvif->monitor_active = true;
7754ae79 3301 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3302 if (ret)
3303 goto out_remove_binding;
0e39eb03
CRI		 3304
3305 ret = iwl_mvm_add_snif_sta(mvm, vif);
3306 if (ret)
3307 goto out_remove_binding;
3308
8ca151b5
JB		 3309 }
3310
bd3398e2 3311 /* Handle binding during CSA */
a57c688d 3312 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3313 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3314 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3315 }
3316
4741dd04 3317 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3318 u32 duration = 2 * vif->bss_conf.beacon_int;
3319
3320 /* iwl_mvm_protect_session() reads directly from the
3321 * device (the system time), so make sure it is
3322 * available.
3323 */
3324 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3325 if (ret)
3326 goto out_remove_binding;
3327
3328 /* Protect the session to make sure we hear the first
3329 * beacon on the new channel.
3330 */
3331 iwl_mvm_protect_session(mvm, vif, duration, duration,
3332 vif->bss_conf.beacon_int / 2,
3333 true);
3334
3335 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3336
7754ae79 3337 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3338 }
3339
b08c1d97 3340 goto out;
8ca151b5 3341
b08c1d97 3342out_remove_binding:
8ca151b5 3343 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3344 iwl_mvm_power_update_mac(mvm);
b08c1d97 3345out:
8ca151b5
JB		 3346 if (ret)
3347 mvmvif->phy_ctxt = NULL;
3348 return ret;
3349}
b08c1d97
LC		 3350static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3351 struct ieee80211_vif *vif,
3352 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3353{
3354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3355 int ret;
8ca151b5
JB		 3356
3357 mutex_lock(&mvm->mutex);
f0c97783 3358 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3359 mutex_unlock(&mvm->mutex);
3360
3361 return ret;
3362}
3363
3364static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3365 struct ieee80211_vif *vif,
f0c97783
LC		 3366 struct ieee80211_chanctx_conf *ctx,
3367 bool switching_chanctx)
b08c1d97
LC		 3368{
3369 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3370 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3371
3372 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3373
3374 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3375
8ca151b5 3376 switch (vif->type) {
5023d966 3377 case NL80211_IFTYPE_ADHOC:
b08c1d97 3378 goto out;
8ca151b5 3379 case NL80211_IFTYPE_MONITOR:
1e1391ca 3380 mvmvif->monitor_active = false;
2533edce 3381 mvmvif->ps_disabled = false;
0e39eb03 3382 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3383 break;
bd3398e2
AO		 3384 case NL80211_IFTYPE_AP:
3385 /* This part is triggered only during CSA */
4741dd04 3386 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3387 goto out;
bd3398e2 3388
7ef0aab6
AO		 3389 mvmvif->csa_countdown = false;
3390
003e5236
AO		 3391 /* Set CS bit on all the stations */
3392 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3393
3394 /* Save blocked iface, the timeout is set on the next beacon */
3395 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3396
bd3398e2 3397 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3398 break;
3399 case NL80211_IFTYPE_STATION:
3400 if (!switching_chanctx)
3401 break;
3402
3403 disabled_vif = vif;
3404
3dfd3a97 3405 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3406 break;
8ca151b5
JB		 3407 default:
3408 break;
3409 }
3410
7754ae79 3411 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3412 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3413
b08c1d97 3414out:
a11e144e 3415 mvmvif->phy_ctxt = NULL;
999609f1 3416 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3417}
3418
3419static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3420 struct ieee80211_vif *vif,
3421 struct ieee80211_chanctx_conf *ctx)
3422{
3423 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3424
3425 mutex_lock(&mvm->mutex);
f0c97783 3426 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3427 mutex_unlock(&mvm->mutex);
3428}
3429
50cc9574
LC		 3430static int
3431iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3432 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3433{
b08c1d97
LC		 3434 int ret;
3435
b08c1d97 3436 mutex_lock(&mvm->mutex);
f0c97783 3437 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3438 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3439
3440 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3441 if (ret) {
3442 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3443 goto out_reassign;
3444 }
3445
f0c97783
LC		 3446 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3447 true);
b08c1d97
LC		 3448 if (ret) {
3449 IWL_ERR(mvm,
3450 "failed to assign new_ctx during channel switch\n");
3451 goto out_remove;
3452 }
3453
f697267f
AN		 3454 /* we don't support TDLS during DCM - can be caused by channel switch */
3455 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3456 iwl_mvm_teardown_tdls_peers(mvm);
3457
b08c1d97
LC		 3458 goto out;
3459
3460out_remove:
3461 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3462
3463out_reassign:
6fd1fb63 3464 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3465 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3466 goto out_restart;
3467 }
3468
6fd1fb63
LC		 3469 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3470 true)) {
b08c1d97
LC		 3471 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3472 goto out_restart;
3473 }
3474
3475 goto out;
3476
3477out_restart:
3478 /* things keep failing, better restart the hw */
3479 iwl_mvm_nic_restart(mvm, false);
3480
3481out:
3482 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3483
3484 return ret;
3485}
3486
48a256e8
LC		 3487static int
3488iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3489 struct ieee80211_vif_chanctx_switch *vifs)
3490{
3491 int ret;
3492
3493 mutex_lock(&mvm->mutex);
3494 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3495
3496 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3497 true);
3498 if (ret) {
3499 IWL_ERR(mvm,
3500 "failed to assign new_ctx during channel switch\n");
3501 goto out_reassign;
3502 }
3503
3504 goto out;
3505
3506out_reassign:
3507 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3508 true)) {
3509 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3510 goto out_restart;
3511 }
3512
3513 goto out;
3514
3515out_restart:
3516 /* things keep failing, better restart the hw */
3517 iwl_mvm_nic_restart(mvm, false);
3518
3519out:
3520 mutex_unlock(&mvm->mutex);
3521
3522 return ret;
3523}
3524
50cc9574
LC		 3525static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3526 struct ieee80211_vif_chanctx_switch *vifs,
3527 int n_vifs,
3528 enum ieee80211_chanctx_switch_mode mode)
3529{
3530 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3531 int ret;
3532
3533 /* we only support a single-vif right now */
3534 if (n_vifs > 1)
3535 return -EOPNOTSUPP;
3536
3537 switch (mode) {
3538 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3539 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3540 break;
3541 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3542 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3543 break;
3544 default:
3545 ret = -EOPNOTSUPP;
3546 break;
3547 }
3548
b08c1d97
LC		 3549 return ret;
3550}
3551
8ca151b5
JB		 3552static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3553 struct ieee80211_sta *sta,
3554 bool set)
3555{
3556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3557 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3558
3559 if (!mvm_sta || !mvm_sta->vif) {
3560 IWL_ERR(mvm, "Station is not associated to a vif\n");
3561 return -EINVAL;
3562 }
3563
3564 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3565}
3566
507cadf2
DS		 3567#ifdef CONFIG_NL80211_TESTMODE
3568static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3569 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3570 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3571 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3572};
3573
3574static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3575 struct ieee80211_vif *vif,
3576 void *data, int len)
3577{
3578 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3579 int err;
3580 u32 noa_duration;
3581
3582 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3583 if (err)
3584 return err;
3585
3586 if (!tb[IWL_MVM_TM_ATTR_CMD])
3587 return -EINVAL;
3588
3589 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3590 case IWL_MVM_TM_CMD_SET_NOA:
3591 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3592 !vif->bss_conf.enable_beacon ||
3593 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3594 return -EINVAL;
3595
3596 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3597 if (noa_duration >= vif->bss_conf.beacon_int)
3598 return -EINVAL;
3599
3600 mvm->noa_duration = noa_duration;
3601 mvm->noa_vif = vif;
3602
7754ae79 3603 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3604 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3605 /* must be associated client vif - ignore authorized */
3606 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3607 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3608 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3609 return -EINVAL;
3610
3611 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3612 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3613 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3614 }
3615
3616 return -EOPNOTSUPP;
3617}
3618
3619static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3620 struct ieee80211_vif *vif,
3621 void *data, int len)
3622{
3623 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3624 int err;
3625
3626 mutex_lock(&mvm->mutex);
3627 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3628 mutex_unlock(&mvm->mutex);
3629
3630 return err;
3631}
3632#endif
3633
622e3f9b
LC		 3634static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3635 struct ieee80211_vif *vif,
3636 struct ieee80211_channel_switch *chsw)
3637{
3638 /* By implementing this operation, we prevent mac80211 from
3639 * starting its own channel switch timer, so that we can call
3640 * ieee80211_chswitch_done() ourselves at the right time
3641 * (which is when the absence time event starts).
3642 */
3643
3644 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3645 "dummy channel switch op\n");
3646}
3647
f028905c
LC		 3648static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3649 struct ieee80211_vif *vif,
3650 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3651{
3652 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3653 struct ieee80211_vif *csa_vif;
f6c34820 3654 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3655 u32 apply_time;
f028905c 3656 int ret;
bd3398e2
AO		 3657
3658 mutex_lock(&mvm->mutex);
664322fa 3659
81d62d5a
JB		 3660 mvmvif->csa_failed = false;
3661
6b20d774 3662 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3663 chsw->chandef.center_freq1);
6b20d774 3664
21023b1e 3665 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3666
6b20d774
LC		 3667 switch (vif->type) {
3668 case NL80211_IFTYPE_AP:
3669 csa_vif =
3670 rcu_dereference_protected(mvm->csa_vif,
3671 lockdep_is_held(&mvm->mutex));
3672 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3673 "Another CSA is already in progress")) {
3674 ret = -EBUSY;
3675 goto out_unlock;
3676 }
3677
3678 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3679
7ef0aab6
AO		 3680 if (WARN_ONCE(mvmvif->csa_countdown,
3681 "Previous CSA countdown didn't complete")) {
3682 ret = -EBUSY;
3683 goto out_unlock;
3684 }
3685
6b20d774 3686 break;
dc88b4ba 3687 case NL80211_IFTYPE_STATION:
03098268
AE		 3688 if (mvmvif->lqm_active)
3689 iwl_mvm_send_lqm_cmd(vif,
3690 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3691 0, 0);
3692
4500e133
LC		 3693 /* Schedule the time event to a bit before beacon 1,
3694 * to make sure we're in the new channel when the
3695 * GO/AP arrives.
3696 */
3697 apply_time = chsw->device_timestamp +
3698 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3699 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3700
3701 if (chsw->block_tx)
3702 iwl_mvm_csa_client_absent(mvm, vif);
3703
4500e133 3704 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3705 apply_time);
c6e0a3e0
LC		 3706 if (mvmvif->bf_data.bf_enabled) {
3707 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3708 if (ret)
3709 goto out_unlock;
3710 }
3711
dc88b4ba 3712 break;
6b20d774
LC		 3713 default:
3714 break;
3715 }
bd3398e2 3716
f6c34820
LC		 3717 mvmvif->ps_disabled = true;
3718
3719 ret = iwl_mvm_power_update_ps(mvm);
3720 if (ret)
3721 goto out_unlock;
f028905c 3722
e198f5e7
AN		 3723 /* we won't be on this channel any longer */
3724 iwl_mvm_teardown_tdls_peers(mvm);
3725
bd3398e2
AO		 3726out_unlock:
3727 mutex_unlock(&mvm->mutex);
f028905c
LC		 3728
3729 return ret;
bd3398e2
AO		 3730}
3731
f6c34820
LC		 3732static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3733 struct ieee80211_vif *vif)
3734{
3735 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3737 int ret;
3738
3739 mutex_lock(&mvm->mutex);
3740
81d62d5a
JB		 3741 if (mvmvif->csa_failed) {
3742 mvmvif->csa_failed = false;
3743 ret = -EIO;
3744 goto out_unlock;
3745 }
3746
a57c688d
LC		 3747 if (vif->type == NL80211_IFTYPE_STATION) {
3748 struct iwl_mvm_sta *mvmsta;
3749
3750 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3751 mvmvif->ap_sta_id);
3752
3753 if (WARN_ON(!mvmsta)) {
3754 ret = -EIO;
3755 goto out_unlock;
3756 }
3757
3758 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3759
3760 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3761
3762 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3763 if (ret)
3764 goto out_unlock;
686e7fe1
LC		 3765
3766 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3767 }
3768
f6c34820
LC		 3769 mvmvif->ps_disabled = false;
3770
3771 ret = iwl_mvm_power_update_ps(mvm);
3772
a57c688d 3773out_unlock:
f6c34820
LC		 3774 mutex_unlock(&mvm->mutex);
3775
3776 return ret;
3777}
3778
c5b0e7c0
EG		 3779static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3780 struct ieee80211_vif *vif, u32 queues, bool drop)
3781{
3782 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3783 struct iwl_mvm_vif *mvmvif;
3784 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3785 struct ieee80211_sta *sta;
3786 int i;
3787 u32 msk = 0;
c5b0e7c0
EG		 3788
3789 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3790 return;
3791
24afba76
LK		 3792 /* Make sure we're done with the deferred traffic before flushing */
3793 if (iwl_mvm_is_dqa_supported(mvm))
3794 flush_work(&mvm->add_stream_wk);
3795
c5b0e7c0
EG		 3796 mutex_lock(&mvm->mutex);
3797 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3798
a0f6bf2a
AN		 3799 /* flush the AP-station and all TDLS peers */
3800 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3801 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3802 lockdep_is_held(&mvm->mutex));
3803 if (IS_ERR_OR_NULL(sta))
3804 continue;
3805
3806 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3807 if (mvmsta->vif != vif)
3808 continue;
3809
3810 /* make sure only TDLS peers or the AP are flushed */
3811 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3812
3813 msk |= mvmsta->tfd_queue_msk;
480acbce 3814 }
c5b0e7c0 3815
6d440b25 3816 if (drop) {
5888a40c 3817 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3818 IWL_ERR(mvm, "flush request fail\n");
3819 mutex_unlock(&mvm->mutex);
3820 } else {
3821 mutex_unlock(&mvm->mutex);
4e6c48e0 3822
6d440b25
EG		 3823 /* this can take a while, and we may need/want other operations
3824 * to succeed while doing this, so do it without the mutex held
3825 */
3826 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3827 }
c5b0e7c0
EG		 3828}
3829
91a8bcde
JB		 3830static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3831 struct survey_info *survey)
3832{
3833 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3834 int ret;
3835
3836 memset(survey, 0, sizeof(*survey));
3837
3838 /* only support global statistics right now */
3839 if (idx != 0)
3840 return -ENOENT;
3841
859d914c 3842 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3843 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3844 return -ENOENT;
3845
3846 mutex_lock(&mvm->mutex);
3847
3848 if (mvm->ucode_loaded) {
33cef925 3849 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3850 if (ret)
3851 goto out;
3852 }
3853
3854 survey->filled = SURVEY_INFO_TIME |
3855 SURVEY_INFO_TIME_RX |
3856 SURVEY_INFO_TIME_TX |
3857 SURVEY_INFO_TIME_SCAN;
3858 survey->time = mvm->accu_radio_stats.on_time_rf +
3859 mvm->radio_stats.on_time_rf;
3860 do_div(survey->time, USEC_PER_MSEC);
3861
3862 survey->time_rx = mvm->accu_radio_stats.rx_time +
3863 mvm->radio_stats.rx_time;
3864 do_div(survey->time_rx, USEC_PER_MSEC);
3865
3866 survey->time_tx = mvm->accu_radio_stats.tx_time +
3867 mvm->radio_stats.tx_time;
3868 do_div(survey->time_tx, USEC_PER_MSEC);
3869
3870 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3871 mvm->radio_stats.on_time_scan;
3872 do_div(survey->time_scan, USEC_PER_MSEC);
3873
10a7c028 3874 ret = 0;
91a8bcde
JB		 3875 out:
3876 mutex_unlock(&mvm->mutex);
3877 return ret;
3878}
3879
33cef925
JB		 3880static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3881 struct ieee80211_vif *vif,
3882 struct ieee80211_sta *sta,
3883 struct station_info *sinfo)
3884{
3885 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3887 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3888
859d914c
JB		 3889 if (fw_has_capa(&mvm->fw->ucode_capa,
3890 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3891 return;
3892
3893 /* if beacon filtering isn't on mac80211 does it anyway */
3894 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3895 return;
3896
3897 if (!vif->bss_conf.assoc)
3898 return;
3899
3900 mutex_lock(&mvm->mutex);
3901
3902 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3903 goto unlock;
3904
3905 if (iwl_mvm_request_statistics(mvm, false))
3906 goto unlock;
3907
3908 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3909 mvmvif->beacon_stats.accu_num_beacons;
3910 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3911 if (mvmvif->beacon_stats.avg_signal) {
3912 /* firmware only reports a value after RXing a few beacons */
3913 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3914 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3915 }
3916 unlock:
3917 mutex_unlock(&mvm->mutex);
3918}
3919
4203263d
EG		 3920static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3921 struct ieee80211_vif *vif,
3922 const struct ieee80211_event *event)
d42f5350 3923{
5d4f929e 3924#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3925 do { \
3926 if ((_cnt) && --(_cnt)) \
3927 break; \
5d4f929e 3928 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3929 } while (0)
3930
d42f5350
EG		 3931 struct iwl_fw_dbg_trigger_tlv *trig;
3932 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3933
3934 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3935 return;
3936
d42f5350
EG		 3937 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3938 trig_mlme = (void *)trig->data;
3939 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3940 return;
3941
d42f5350
EG		 3942 if (event->u.mlme.data == ASSOC_EVENT) {
3943 if (event->u.mlme.status == MLME_DENIED)
3944 CHECK_MLME_TRIGGER(mvm, trig, buf,
3945 trig_mlme->stop_assoc_denied,
3946 "DENIED ASSOC: reason %d",
3947 event->u.mlme.reason);
3948 else if (event->u.mlme.status == MLME_TIMEOUT)
3949 CHECK_MLME_TRIGGER(mvm, trig, buf,
3950 trig_mlme->stop_assoc_timeout,
3951 "ASSOC TIMEOUT");
3952 } else if (event->u.mlme.data == AUTH_EVENT) {
3953 if (event->u.mlme.status == MLME_DENIED)
3954 CHECK_MLME_TRIGGER(mvm, trig, buf,
3955 trig_mlme->stop_auth_denied,
3956 "DENIED AUTH: reason %d",
3957 event->u.mlme.reason);
3958 else if (event->u.mlme.status == MLME_TIMEOUT)
3959 CHECK_MLME_TRIGGER(mvm, trig, buf,
3960 trig_mlme->stop_auth_timeout,
3961 "AUTH TIMEOUT");
3962 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3963 CHECK_MLME_TRIGGER(mvm, trig, buf,
3964 trig_mlme->stop_rx_deauth,
3965 "DEAUTH RX %d", event->u.mlme.reason);
3966 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3967 CHECK_MLME_TRIGGER(mvm, trig, buf,
3968 trig_mlme->stop_tx_deauth,
3969 "DEAUTH TX %d", event->u.mlme.reason);
3970 }
3971#undef CHECK_MLME_TRIGGER
3972}
3973
4203263d
EG		 3974static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
3975 struct ieee80211_vif *vif,
3976 const struct ieee80211_event *event)
3977{
3978 struct iwl_fw_dbg_trigger_tlv *trig;
3979 struct iwl_fw_dbg_trigger_ba *ba_trig;
3980
3981 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3982 return;
3983
3984 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3985 ba_trig = (void *)trig->data;
3986 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3987 return;
3988
3989 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
3990 return;
3991
3992 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3993 "BAR received from %pM, tid %d, ssn %d",
3994 event->u.ba.sta->addr, event->u.ba.tid,
3995 event->u.ba.ssn);
3996}
3997
3998static void
3999iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4000 struct ieee80211_vif *vif,
4001 const struct ieee80211_event *event)
4002{
4003 struct iwl_fw_dbg_trigger_tlv *trig;
4004 struct iwl_fw_dbg_trigger_ba *ba_trig;
4005
4006 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4007 return;
4008
4009 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4010 ba_trig = (void *)trig->data;
4011 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4012 return;
4013
4014 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4015 return;
4016
4017 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4018 "Frame from %pM timed out, tid %d",
4019 event->u.ba.sta->addr, event->u.ba.tid);
4020}
4021
4022static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4023 struct ieee80211_vif *vif,
4024 const struct ieee80211_event *event)
4025{
4026 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4027
4028 switch (event->type) {
4029 case MLME_EVENT:
4030 iwl_mvm_event_mlme_callback(mvm, vif, event);
4031 break;
4032 case BAR_RX_EVENT:
4033 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4034 break;
4035 case BA_FRAME_TIMEOUT:
4036 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4037 break;
4038 default:
4039 break;
4040 }
4041}
4042
d0ff5d22
SS		 4043void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4044 struct iwl_mvm_internal_rxq_notif *notif,
4045 u32 size)
0636b938 4046{
0636b938
SS		 4047 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq);
4048 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4049 int ret;
4050
4051 lockdep_assert_held(&mvm->mutex);
4052
4053 if (!iwl_mvm_has_new_rx_api(mvm))
4054 return;
4055
d0ff5d22
SS		 4056 notif->cookie = mvm->queue_sync_cookie;
4057
4058 if (notif->sync)
4059 atomic_set(&mvm->queue_sync_counter,
4060 mvm->trans->num_rx_queues);
0636b938 4061
d0ff5d22 4062 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4063 if (ret) {
4064 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4065 goto out;
4066 }
d0ff5d22
SS		 4067
4068 if (notif->sync)
4069 ret = wait_event_timeout(notif_waitq,
4070 atomic_read(&mvm->queue_sync_counter) == 0,
4071 HZ);
0636b938
SS		 4072 WARN_ON_ONCE(!ret);
4073
4074out:
4075 atomic_set(&mvm->queue_sync_counter, 0);
4076 mvm->queue_sync_cookie++;
4077}
4078
4079static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4080{
4081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4082 struct iwl_mvm_internal_rxq_notif data = {
4083 .type = IWL_MVM_RXQ_EMPTY,
4084 .sync = 1,
4085 };
0636b938
SS		 4086
4087 mutex_lock(&mvm->mutex);
d0ff5d22 4088 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4089 mutex_unlock(&mvm->mutex);
4090}
4091
e5209263 4092const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4093 .tx = iwl_mvm_mac_tx,
4094 .ampdu_action = iwl_mvm_mac_ampdu_action,
4095 .start = iwl_mvm_mac_start,
cf2c92d8 4096 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4097 .stop = iwl_mvm_mac_stop,
4098 .add_interface = iwl_mvm_mac_add_interface,
4099 .remove_interface = iwl_mvm_mac_remove_interface,
4100 .config = iwl_mvm_mac_config,
e59647ea 4101 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4102 .configure_filter = iwl_mvm_configure_filter,
effd1929 4103 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4104 .bss_info_changed = iwl_mvm_bss_info_changed,
4105 .hw_scan = iwl_mvm_mac_hw_scan,
4106 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4107 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4108 .sta_state = iwl_mvm_mac_sta_state,
4109 .sta_notify = iwl_mvm_mac_sta_notify,
4110 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4111 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4112 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4113 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4114 .conf_tx = iwl_mvm_mac_conf_tx,
4115 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4116 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4117 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4118 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4119 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4120 .set_key = iwl_mvm_mac_set_key,
4121 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4122 .remain_on_channel = iwl_mvm_roc,
4123 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4124 .add_chanctx = iwl_mvm_add_chanctx,
4125 .remove_chanctx = iwl_mvm_remove_chanctx,
4126 .change_chanctx = iwl_mvm_change_chanctx,
4127 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4128 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4129 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4130
5023d966
JB		 4131 .start_ap = iwl_mvm_start_ap_ibss,
4132 .stop_ap = iwl_mvm_stop_ap_ibss,
4133 .join_ibss = iwl_mvm_start_ap_ibss,
4134 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4135
4136 .set_tim = iwl_mvm_set_tim,
4137
622e3f9b 4138 .channel_switch = iwl_mvm_channel_switch,
f028905c 4139 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4140 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4141
1d3c3f63
AN		 4142 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4143 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4144 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4145
d42f5350
EG		 4146 .event_callback = iwl_mvm_mac_event_callback,
4147
0636b938
SS		 4148 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4149
507cadf2
DS		 4150 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4151
8ca151b5
JB		 4152#ifdef CONFIG_PM_SLEEP
4153 /* look at d3.c */
4154 .suspend = iwl_mvm_suspend,
4155 .resume = iwl_mvm_resume,
4156 .set_wakeup = iwl_mvm_set_wakeup,
4157 .set_rekey_data = iwl_mvm_set_rekey_data,
4158#if IS_ENABLED(CONFIG_IPV6)
4159 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4160#endif
4161 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4162#endif
91a8bcde 4163 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4164 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4165};
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