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iwlwifi: mvm: add a scan timeout for regular scans
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
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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
8ca151b5
JB		 553 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
554 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
555 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 556 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 557 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
558 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
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))
3d44eebf
ES		 564 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
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
AA		 667 hw->netdev_features |= mvm->cfg->features;
668 if (!iwl_mvm_is_csum_supported(mvm))
669 hw->netdev_features &= ~NETIF_F_RXCSUM;
670
41837ca9 671 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
a3713f8b
EG		 672 hw->netdev_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
673 NETIF_F_TSO | NETIF_F_TSO6;
41837ca9 674
b7327d89
EG		 675 ret = ieee80211_register_hw(mvm->hw);
676 if (ret)
677 iwl_mvm_leds_exit(mvm);
678
679 return ret;
8ca151b5
JB		 680}
681
b2492501
AN		 682static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
683 struct ieee80211_sta *sta,
684 struct sk_buff *skb)
685{
686 struct iwl_mvm_sta *mvmsta;
687 bool defer = false;
688
689 /*
690 * double check the IN_D0I3 flag both before and after
691 * taking the spinlock, in order to prevent taking
692 * the spinlock when not needed.
693 */
694 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
695 return false;
696
697 spin_lock(&mvm->d0i3_tx_lock);
698 /*
699 * testing the flag again ensures the skb dequeue
700 * loop (on d0i3 exit) hasn't run yet.
701 */
702 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
703 goto out;
704
705 mvmsta = iwl_mvm_sta_from_mac80211(sta);
706 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
707 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
708 goto out;
709
710 __skb_queue_tail(&mvm->d0i3_tx, skb);
711 ieee80211_stop_queues(mvm->hw);
712
713 /* trigger wakeup */
714 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
715 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
716
717 defer = true;
718out:
719 spin_unlock(&mvm->d0i3_tx_lock);
720 return defer;
721}
722
8ca151b5
JB		 723static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
724 struct ieee80211_tx_control *control,
725 struct sk_buff *skb)
726{
727 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 728 struct ieee80211_sta *sta = control->sta;
729 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
730 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 731
9ee718aa
EL		 732 if (iwl_mvm_is_radio_killed(mvm)) {
733 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 734 goto drop;
735 }
736
398e8c6c 737 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 738 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
739 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 740 goto drop;
741
3e56eadf
JB		 742 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
743 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
744 ieee80211_is_mgmt(hdr->frame_control) &&
745 !ieee80211_is_deauth(hdr->frame_control) &&
746 !ieee80211_is_disassoc(hdr->frame_control) &&
747 !ieee80211_is_action(hdr->frame_control)))
748 sta = NULL;
749
750 if (sta) {
b2492501
AN		 751 if (iwl_mvm_defer_tx(mvm, sta, skb))
752 return;
3e56eadf 753 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 754 goto drop;
755 return;
756 }
757
758 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
759 goto drop;
760 return;
761 drop:
762 ieee80211_free_txskb(hw, skb);
763}
764
205e2210
EG		 765static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
766{
767 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
768 return false;
769 return true;
770}
771
772static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
773{
774 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
775 return false;
776 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
777 return true;
778
779 /* enabled by default */
780 return true;
781}
782
4203263d
EG		 783#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
784 do { \
785 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
786 break; \
787 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
788 } while (0)
789
790static void
791iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
792 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
793 enum ieee80211_ampdu_mlme_action action)
794{
795 struct iwl_fw_dbg_trigger_tlv *trig;
796 struct iwl_fw_dbg_trigger_ba *ba_trig;
797
798 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
799 return;
800
801 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
802 ba_trig = (void *)trig->data;
803
804 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
805 return;
806
807 switch (action) {
808 case IEEE80211_AMPDU_TX_OPERATIONAL: {
809 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
810 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
811
812 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
813 "TX AGG START: MAC %pM tid %d ssn %d\n",
814 sta->addr, tid, tid_data->ssn);
815 break;
816 }
817 case IEEE80211_AMPDU_TX_STOP_CONT:
818 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
819 "TX AGG STOP: MAC %pM tid %d\n",
820 sta->addr, tid);
821 break;
822 case IEEE80211_AMPDU_RX_START:
823 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
824 "RX AGG START: MAC %pM tid %d ssn %d\n",
825 sta->addr, tid, rx_ba_ssn);
826 break;
827 case IEEE80211_AMPDU_RX_STOP:
828 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
829 "RX AGG STOP: MAC %pM tid %d\n",
830 sta->addr, tid);
831 break;
832 default:
833 break;
834 }
835}
836
8ca151b5
JB		 837static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
838 struct ieee80211_vif *vif,
50ea05ef 839 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 840{
841 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
842 int ret;
b2492501 843 bool tx_agg_ref = false;
50ea05ef
SS		 844 struct ieee80211_sta *sta = params->sta;
845 enum ieee80211_ampdu_mlme_action action = params->action;
846 u16 tid = params->tid;
847 u16 *ssn = &params->ssn;
848 u8 buf_size = params->buf_size;
bb81bb68 849 bool amsdu = params->amsdu;
8ca151b5
JB		 850
851 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
852 sta->addr, tid, action);
853
854 if (!(mvm->nvm_data->sku_cap_11n_enable))
855 return -EACCES;
856
b2492501 857 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 858 switch (action) {
859 case IEEE80211_AMPDU_TX_START:
860 case IEEE80211_AMPDU_TX_STOP_CONT:
861 case IEEE80211_AMPDU_TX_STOP_FLUSH:
862 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
863 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 864 /*
9256c205
EP		 865 * for tx start, wait synchronously until D0i3 exit to
866 * get the correct sequence number for the tid.
867 * additionally, some other ampdu actions use direct
868 * target access, which is not handled automatically
869 * by the trans layer (unlike commands), so wait for
870 * d0i3 exit in these cases as well.
b2492501 871 */
d40fc489
GG		 872 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
873 if (ret)
874 return ret;
875
876 tx_agg_ref = true;
9256c205
EP		 877 break;
878 default:
879 break;
b2492501
AN		 880 }
881
8ca151b5
JB		 882 mutex_lock(&mvm->mutex);
883
884 switch (action) {
885 case IEEE80211_AMPDU_RX_START:
205e2210 886 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 887 ret = -EINVAL;
888 break;
889 }
854c5705 890 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size);
8ca151b5
JB		 891 break;
892 case IEEE80211_AMPDU_RX_STOP:
854c5705 893 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size);
8ca151b5
JB		 894 break;
895 case IEEE80211_AMPDU_TX_START:
205e2210 896 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 897 ret = -EINVAL;
898 break;
899 }
8ca151b5
JB		 900 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
901 break;
902 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 903 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
904 break;
8ca151b5
JB		 905 case IEEE80211_AMPDU_TX_STOP_FLUSH:
906 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 907 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 908 break;
909 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 910 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
911 buf_size, amsdu);
8ca151b5
JB		 912 break;
913 default:
914 WARN_ON_ONCE(1);
915 ret = -EINVAL;
916 break;
917 }
4203263d
EG		 918
919 if (!ret) {
920 u16 rx_ba_ssn = 0;
921
922 if (action == IEEE80211_AMPDU_RX_START)
923 rx_ba_ssn = *ssn;
924
925 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
926 rx_ba_ssn, action);
927 }
8ca151b5
JB		 928 mutex_unlock(&mvm->mutex);
929
b2492501
AN		 930 /*
931 * If the tid is marked as started, we won't use it for offloaded
932 * traffic on the next D0i3 entry. It's safe to unref.
933 */
934 if (tx_agg_ref)
935 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
936
8ca151b5
JB		 937 return ret;
938}
939
940static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
941 struct ieee80211_vif *vif)
942{
943 struct iwl_mvm *mvm = data;
944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
945
946 mvmvif->uploaded = false;
947 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
948
8ca151b5
JB		 949 spin_lock_bh(&mvm->time_event_lock);
950 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
951 spin_unlock_bh(&mvm->time_event_lock);
952
fe0f2de3 953 mvmvif->phy_ctxt = NULL;
8a275bad 954 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 955}
956
957static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
958{
58629d9d
JB		 959 /* clear the D3 reconfig, we only need it to avoid dumping a
960 * firmware coredump on reconfiguration, we shouldn't do that
961 * on D3->D0 transition
962 */
b6eaa45a
EG		 963 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
964 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 965 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 966 }
1bd3cbc1 967
744cb695
EP		 968 /* cleanup all stale references (scan, roc), but keep the
969 * ucode_down ref until reconfig is complete
970 */
971 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
972
fcb6b92a 973 iwl_mvm_stop_device(mvm);
8ca151b5 974
9af91f46 975 mvm->scan_status = 0;
b1873300 976 mvm->ps_disabled = false;
31b8b343 977 mvm->calibrating = false;
8ca151b5
JB		 978
979 /* just in case one was running */
305d236e 980 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 981 ieee80211_remain_on_channel_expired(mvm->hw);
982
737719fe
AN		 983 /*
984 * cleanup all interfaces, even inactive ones, as some might have
985 * gone down during the HW restart
986 */
987 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 988
fe0f2de3 989 mvm->p2p_device_vif = NULL;
37577fe2 990 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 991
992 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 993 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
8ca151b5 994 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
24afba76 995 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
a0f6bf2a 996 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 997 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
998 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
999 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1000 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1001 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1002 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1003
1004 ieee80211_wake_queues(mvm->hw);
1005
228670b2
EP		 1006 /* clear any stale d0i3 state */
1007 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1008
8ca151b5 1009 mvm->vif_count = 0;
113a0447 1010 mvm->rx_ba_sessions = 0;
d2709ad7 1011 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1012
1013 /* keep statistics ticking */
1014 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1015}
1016
a0a09243 1017int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1018{
8ca151b5
JB		 1019 int ret;
1020
a0a09243 1021 lockdep_assert_held(&mvm->mutex);
8ca151b5 1022
a42b2af3
LC		 1023 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1024 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1025 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1026 } else {
1027 /* Hold the reference to prevent runtime suspend while
1028 * the start procedure runs. It's a bit confusing
1029 * that the UCODE_DOWN reference is taken, but it just
1030 * means "UCODE is not UP yet". ( TODO: rename this
1031 * reference).
1032 */
1033 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1034 }
8ca151b5 1035 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1036
1037 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1038 /* Something went wrong - we need to finish some cleanup
1039 * that normally iwl_mvm_mac_restart_complete() below
1040 * would do.
1041 */
1042 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1043 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1044 }
1045
a0a09243
LC		 1046 return ret;
1047}
1048
1049static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1050{
1051 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1052 int ret;
1053
37948fcf
EP		 1054 /* Some hw restart cleanups must not hold the mutex */
1055 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1056 /*
1057 * Make sure we are out of d0i3. This is needed
1058 * to make sure the reference accounting is correct
1059 * (and there is no stale d0i3_exit_work).
1060 */
1061 wait_event_timeout(mvm->d0i3_exit_waitq,
1062 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1063 &mvm->status),
1064 HZ);
1065 }
1066
a0a09243
LC		 1067 mutex_lock(&mvm->mutex);
1068 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1069 mutex_unlock(&mvm->mutex);
1070
1071 return ret;
1072}
1073
cf2c92d8 1074static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1075{
8ca151b5
JB		 1076 int ret;
1077
1078 mutex_lock(&mvm->mutex);
1079
1080 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1081 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1082 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1083 if (ret)
1084 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1085 ret);
1086
7498cf4c
EP		 1087 /* allow transport/FW low power modes */
1088 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1089
cbd2ae2d
AN		 1090 /*
1091 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1092 * of packets the FW sent out, so we must reconnect.
1093 */
1094 iwl_mvm_teardown_tdls_peers(mvm);
1095
8ca151b5
JB		 1096 mutex_unlock(&mvm->mutex);
1097}
1098
088070a2
EP		 1099static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1100{
b7282643
LC		 1101 if (iwl_mvm_is_d0i3_supported(mvm) &&
1102 iwl_mvm_enter_d0i3_on_suspend(mvm))
1103 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1104 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1105 &mvm->status),
1106 HZ),
1107 "D0i3 exit on resume timed out\n");
088070a2
EP		 1108}
1109
cf2c92d8
EP		 1110static void
1111iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1112 enum ieee80211_reconfig_type reconfig_type)
1113{
1114 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1115
1116 switch (reconfig_type) {
1117 case IEEE80211_RECONFIG_TYPE_RESTART:
1118 iwl_mvm_restart_complete(mvm);
1119 break;
1120 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1121 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1122 break;
1123 }
1124}
1125
a0a09243 1126void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1127{
a0a09243 1128 lockdep_assert_held(&mvm->mutex);
7498cf4c 1129
91a8bcde
JB		 1130 /* firmware counters are obviously reset now, but we shouldn't
1131 * partially track so also clear the fw_reset_accu counters.
1132 */
1133 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1134
8ca151b5
JB		 1135 /* async_handlers_wk is now blocked */
1136
1137 /*
1138 * The work item could be running or queued if the
1139 * ROC time event stops just as we get here.
1140 */
c779273b 1141 flush_work(&mvm->roc_done_wk);
8ca151b5 1142
fcb6b92a 1143 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1144
1145 iwl_mvm_async_handlers_purge(mvm);
1146 /* async_handlers_list is empty and will stay empty: HW is stopped */
1147
1148 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1149 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1150
0a79a0c0
EP		 1151 /*
1152 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1153 * won't be called in this case).
8b2b9fbf
AN		 1154 * But make sure to cleanup interfaces that have gone down before/during
1155 * HW restart was requested.
0a79a0c0 1156 */
8b2b9fbf
AN		 1157 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1158 ieee80211_iterate_interfaces(mvm->hw, 0,
1159 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1160
963221be
AB		 1161 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1162 * make sure there's nothing left there and warn if any is found.
1163 */
859d914c 1164 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1165 int i;
1166
507e4cda 1167 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1168 if (WARN_ONCE(mvm->scan_uid_status[i],
1169 "UMAC scan UID %d status was not cleaned\n",
1170 i))
1171 mvm->scan_uid_status[i] = 0;
963221be
AB		 1172 }
1173 }
a0a09243 1174}
bc44886d 1175
a0a09243
LC		 1176static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1177{
1178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1179
1180 flush_work(&mvm->d0i3_exit_work);
1181 flush_work(&mvm->async_handlers_wk);
24afba76 1182 flush_work(&mvm->add_stream_wk);
d2709ad7 1183 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1184 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1185
1186 mutex_lock(&mvm->mutex);
1187 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1188 mutex_unlock(&mvm->mutex);
1189
1190 /*
1191 * The worker might have been waiting for the mutex, let it run and
1192 * discover that its list is now empty.
1193 */
1194 cancel_work_sync(&mvm->async_handlers_wk);
1195}
1196
fe0f2de3
IP		 1197static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1198{
1199 u16 i;
1200
1201 lockdep_assert_held(&mvm->mutex);
1202
1203 for (i = 0; i < NUM_PHY_CTX; i++)
1204 if (!mvm->phy_ctxts[i].ref)
1205 return &mvm->phy_ctxts[i];
1206
1207 IWL_ERR(mvm, "No available PHY context\n");
1208 return NULL;
1209}
1210
d44c3fe6
AA		 1211static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1212 s16 tx_power)
1213{
1214 struct iwl_dev_tx_power_cmd cmd = {
da03f029
JB		 1215 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1216 .v2.mac_context_id =
d44c3fe6 1217 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
da03f029 1218 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1219 };
da03f029 1220 int len = sizeof(cmd);
d44c3fe6 1221
d44c3fe6 1222 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
da03f029 1223 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1224
da03f029
JB		 1225 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1226 len = sizeof(cmd.v2);
1227
1228 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1229}
1230
8ca151b5
JB		 1231static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1232 struct ieee80211_vif *vif)
1233{
1234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1235 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1236 int ret;
1237
aa5e1832
EG		 1238 mvmvif->mvm = mvm;
1239
d40fc489
GG		 1240 /*
1241 * make sure D0i3 exit is completed, otherwise a target access
1242 * during tx queue configuration could be done when still in
1243 * D0i3 state.
1244 */
1245 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1246 if (ret)
1247 return ret;
1248
8ca151b5
JB		 1249 /*
1250 * Not much to do here. The stack will not allow interface
1251 * types or combinations that we didn't advertise, so we
1252 * don't really have to check the types.
1253 */
1254
1255 mutex_lock(&mvm->mutex);
1256
33cef925
JB		 1257 /* make sure that beacon statistics don't go backwards with FW reset */
1258 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1259 mvmvif->beacon_stats.accu_num_beacons +=
1260 mvmvif->beacon_stats.num_beacons;
1261
e89044d7 1262 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1263 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1264 if (ret)
1265 goto out_unlock;
1266
1c2abf72 1267 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1268 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1269 mvm->vif_count++;
ea183d02 1270
8ca151b5
JB		 1271 /*
1272 * The AP binding flow can be done only after the beacon
1273 * template is configured (which happens only in the mac80211
1274 * start_ap() flow), and adding the broadcast station can happen
1275 * only after the binding.
1276 * In addition, since modifying the MAC before adding a bcast
1277 * station is not allowed by the FW, delay the adding of MAC context to
1278 * the point where we can also add the bcast station.
1279 * In short: there's not much we can do at this point, other than
1280 * allocating resources :)
1281 */
5023d966
JB		 1282 if (vif->type == NL80211_IFTYPE_AP ||
1283 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1284 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1285 if (ret) {
1286 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1287 goto out_release;
1288 }
1289
77740cb4 1290 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1291 goto out_unlock;
1292 }
1293
93190fb0
AA		 1294 mvmvif->features |= hw->netdev_features;
1295
8ca151b5
JB		 1296 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1297 if (ret)
1298 goto out_release;
1299
999609f1 1300 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1301 if (ret)
fd66fc1c 1302 goto out_remove_mac;
8ca151b5 1303
7df15b1e 1304 /* beacon filtering */
a1022927 1305 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1306 if (ret)
1307 goto out_remove_mac;
1308
7df15b1e 1309 if (!mvm->bf_allowed_vif &&
73e5f2c5 1310 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1311 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1312 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1313 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1314 }
1315
8ca151b5
JB		 1316 /*
1317 * P2P_DEVICE interface does not have a channel context assigned to it,
1318 * so a dedicated PHY context is allocated to it and the corresponding
1319 * MAC context is bound to it at this stage.
1320 */
1321 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1322
fe0f2de3
IP		 1323 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1324 if (!mvmvif->phy_ctxt) {
1325 ret = -ENOSPC;
bd3351ba 1326 goto out_free_bf;
fe0f2de3 1327 }
8ca151b5 1328
53a9d61e 1329 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1330 ret = iwl_mvm_binding_add_vif(mvm, vif);
1331 if (ret)
53a9d61e 1332 goto out_unref_phy;
8ca151b5 1333
013290aa 1334 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1335 if (ret)
1336 goto out_unbind;
1337
1338 /* Save a pointer to p2p device vif, so it can later be used to
1339 * update the p2p device MAC when a GO is started/stopped */
1340 mvm->p2p_device_vif = vif;
1341 }
1342
63494374 1343 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1344 goto out_unlock;
1345
1346 out_unbind:
1347 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1348 out_unref_phy:
fe0f2de3 1349 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1350 out_free_bf:
1351 if (mvm->bf_allowed_vif == mvmvif) {
1352 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1353 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1354 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1355 }
8ca151b5
JB		 1356 out_remove_mac:
1357 mvmvif->phy_ctxt = NULL;
1358 iwl_mvm_mac_ctxt_remove(mvm, vif);
1359 out_release:
5ee2b215
AB		 1360 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1361 mvm->vif_count--;
1c2abf72 1362
8ca151b5
JB		 1363 iwl_mvm_mac_ctxt_release(mvm, vif);
1364 out_unlock:
1365 mutex_unlock(&mvm->mutex);
1366
d40fc489
GG		 1367 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1368
8ca151b5
JB		 1369 return ret;
1370}
1371
38a12b5b
JB		 1372static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1373 struct ieee80211_vif *vif)
8ca151b5 1374{
d92b732e 1375 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1376
1377 if (tfd_msk) {
fe92e32a
EG		 1378 /*
1379 * mac80211 first removes all the stations of the vif and
1380 * then removes the vif. When it removes a station it also
1381 * flushes the AMPDU session. So by now, all the AMPDU sessions
1382 * of all the stations of this vif are closed, and the queues
1383 * of these AMPDU sessions are properly closed.
1384 * We still need to take care of the shared queues of the vif.
1385 * Flush them here.
1386 */
8ca151b5 1387 mutex_lock(&mvm->mutex);
5888a40c 1388 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1389 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1390
1391 /*
1392 * There are transports that buffer a few frames in the host.
1393 * For these, the flush above isn't enough since while we were
1394 * flushing, the transport might have sent more frames to the
1395 * device. To solve this, wait here until the transport is
1396 * empty. Technically, this could have replaced the flush
1397 * above, but flush is much faster than draining. So flush
1398 * first, and drain to make sure we have no frames in the
1399 * transport anymore.
1400 * If a station still had frames on the shared queues, it is
1401 * already marked as draining, so to complete the draining, we
1402 * just need to wait until the transport is empty.
1403 */
1404 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1405 }
1406
1407 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1408 /*
1409 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1410 * We assume here that all the packets sent to the OFFCHANNEL
1411 * queue are sent in ROC session.
1412 */
1413 flush_work(&mvm->roc_done_wk);
1414 } else {
1415 /*
1416 * By now, all the AC queues are empty. The AGG queues are
1417 * empty too. We already got all the Tx responses for all the
1418 * packets in the queues. The drain work can have been
0742a75a 1419 * triggered. Flush it.
8ca151b5
JB		 1420 */
1421 flush_work(&mvm->sta_drained_wk);
1422 }
38a12b5b
JB		 1423}
1424
1425static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1426 struct ieee80211_vif *vif)
1427{
1428 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1429 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1430
1431 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1432
1433 mutex_lock(&mvm->mutex);
1434
7df15b1e
HG		 1435 if (mvm->bf_allowed_vif == mvmvif) {
1436 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1437 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1438 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1439 }
1440
63494374
JB		 1441 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1442
8ca151b5
JB		 1443 /*
1444 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1445 * interface is be handled as part of the stop_ap flow.
8ca151b5 1446 */
5023d966
JB		 1447 if (vif->type == NL80211_IFTYPE_AP ||
1448 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1449#ifdef CONFIG_NL80211_TESTMODE
1450 if (vif == mvm->noa_vif) {
1451 mvm->noa_vif = NULL;
1452 mvm->noa_duration = 0;
1453 }
1454#endif
013290aa 1455 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1456 goto out_release;
1457 }
1458
1459 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1460 mvm->p2p_device_vif = NULL;
013290aa 1461 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1462 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1463 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1464 mvmvif->phy_ctxt = NULL;
1465 }
1466
5ee2b215 1467 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1468 mvm->vif_count--;
1c2abf72 1469
999609f1 1470 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1471 iwl_mvm_mac_ctxt_remove(mvm, vif);
1472
1473out_release:
1474 iwl_mvm_mac_ctxt_release(mvm, vif);
1475 mutex_unlock(&mvm->mutex);
1476}
1477
1478static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1479{
8ca151b5
JB		 1480 return 0;
1481}
1482
e59647ea
EP		 1483struct iwl_mvm_mc_iter_data {
1484 struct iwl_mvm *mvm;
1485 int port_id;
1486};
1487
1488static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1489 struct ieee80211_vif *vif)
1490{
1491 struct iwl_mvm_mc_iter_data *data = _data;
1492 struct iwl_mvm *mvm = data->mvm;
1493 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1494 int ret, len;
1495
1496 /* if we don't have free ports, mcast frames will be dropped */
1497 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1498 return;
1499
1500 if (vif->type != NL80211_IFTYPE_STATION ||
1501 !vif->bss_conf.assoc)
1502 return;
1503
1504 cmd->port_id = data->port_id++;
1505 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1506 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1507
1c4abec0 1508 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1509 if (ret)
1510 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1511}
1512
1513static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1514{
1515 struct iwl_mvm_mc_iter_data iter_data = {
1516 .mvm = mvm,
88f2fd73
MG		 1517 };
1518
e59647ea
EP		 1519 lockdep_assert_held(&mvm->mutex);
1520
1521 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1522 return;
1523
1c4abec0 1524 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1525 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1526 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1527}
1528
e59647ea
EP		 1529static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1530 struct netdev_hw_addr_list *mc_list)
8ca151b5 1531{
e59647ea
EP		 1532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1533 struct iwl_mcast_filter_cmd *cmd;
1534 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1535 int addr_count;
1536 bool pass_all;
e59647ea
EP		 1537 int len;
1538
f3bd58f4
MS		 1539 addr_count = netdev_hw_addr_list_count(mc_list);
1540 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1541 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1542 if (pass_all)
e59647ea 1543 addr_count = 0;
e59647ea
EP		 1544
1545 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1546 cmd = kzalloc(len, GFP_ATOMIC);
1547 if (!cmd)
1548 return 0;
1549
1550 if (pass_all) {
1551 cmd->pass_all = 1;
1552 return (u64)(unsigned long)cmd;
1553 }
1554
1555 netdev_hw_addr_list_for_each(addr, mc_list) {
1556 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1557 cmd->count, addr->addr);
1558 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1559 addr->addr, ETH_ALEN);
1560 cmd->count++;
1561 }
1562
1563 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1564}
1565
1566static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1567 unsigned int changed_flags,
1568 unsigned int *total_flags,
1569 u64 multicast)
1570{
e59647ea
EP		 1571 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1572 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1573
e59647ea 1574 mutex_lock(&mvm->mutex);
51b6b9e0 1575
e59647ea
EP		 1576 /* replace previous configuration */
1577 kfree(mvm->mcast_filter_cmd);
1578 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1579
e59647ea
EP		 1580 if (!cmd)
1581 goto out;
51b6b9e0 1582
e59647ea
EP		 1583 iwl_mvm_recalc_multicast(mvm);
1584out:
1585 mutex_unlock(&mvm->mutex);
1586 *total_flags = 0;
51b6b9e0
EG		 1587}
1588
effd1929
AO		 1589static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1590 struct ieee80211_vif *vif,
1591 unsigned int filter_flags,
1592 unsigned int changed_flags)
1593{
1594 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1595
1596 /* We support only filter for probe requests */
1597 if (!(changed_flags & FIF_PROBE_REQ))
1598 return;
1599
1600 /* Supported only for p2p client interfaces */
1601 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1602 !vif->p2p)
1603 return;
1604
1605 mutex_lock(&mvm->mutex);
1606 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1607 mutex_unlock(&mvm->mutex);
1608}
1609
c87163b9
EP		 1610#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1611struct iwl_bcast_iter_data {
1612 struct iwl_mvm *mvm;
1613 struct iwl_bcast_filter_cmd *cmd;
1614 u8 current_filter;
1615};
1616
1617static void
1618iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1619 const struct iwl_fw_bcast_filter *in_filter,
1620 struct iwl_fw_bcast_filter *out_filter)
1621{
1622 struct iwl_fw_bcast_filter_attr *attr;
1623 int i;
1624
1625 memcpy(out_filter, in_filter, sizeof(*out_filter));
1626
1627 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1628 attr = &out_filter->attrs[i];
1629
1630 if (!attr->mask)
1631 break;
1632
2ee8f021
EP		 1633 switch (attr->reserved1) {
1634 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1635 if (vif->bss_conf.arp_addr_cnt != 1) {
1636 attr->mask = 0;
1637 continue;
1638 }
1639
1640 attr->val = vif->bss_conf.arp_addr_list[0];
1641 break;
1642 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1643 attr->val = *(__be32 *)&vif->addr[2];
1644 break;
1645 default:
1646 break;
1647 }
1648 attr->reserved1 = 0;
c87163b9
EP		 1649 out_filter->num_attrs++;
1650 }
1651}
1652
1653static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1654 struct ieee80211_vif *vif)
1655{
1656 struct iwl_bcast_iter_data *data = _data;
1657 struct iwl_mvm *mvm = data->mvm;
1658 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1659 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1660 struct iwl_fw_bcast_mac *bcast_mac;
1661 int i;
1662
1663 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1664 return;
1665
1666 bcast_mac = &cmd->macs[mvmvif->id];
1667
e48393e8
IP		 1668 /*
1669 * enable filtering only for associated stations, but not for P2P
1670 * Clients
1671 */
1672 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1673 !vif->bss_conf.assoc)
c87163b9
EP		 1674 return;
1675
1676 bcast_mac->default_discard = 1;
1677
1678 /* copy all configured filters */
1679 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1680 /*
1681 * Make sure we don't exceed our filters limit.
1682 * if there is still a valid filter to be configured,
1683 * be on the safe side and just allow bcast for this mac.
1684 */
1685 if (WARN_ON_ONCE(data->current_filter >=
1686 ARRAY_SIZE(cmd->filters))) {
1687 bcast_mac->default_discard = 0;
1688 bcast_mac->attached_filters = 0;
1689 break;
1690 }
1691
1692 iwl_mvm_set_bcast_filter(vif,
1693 &mvm->bcast_filters[i],
1694 &cmd->filters[data->current_filter]);
1695
1696 /* skip current filter if it contains no attributes */
1697 if (!cmd->filters[data->current_filter].num_attrs)
1698 continue;
1699
1700 /* attach the filter to current mac */
1701 bcast_mac->attached_filters |=
1702 cpu_to_le16(BIT(data->current_filter));
1703
1704 data->current_filter++;
1705 }
1706}
1707
de06a59e
EP		 1708bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1709 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1710{
c87163b9
EP		 1711 struct iwl_bcast_iter_data iter_data = {
1712 .mvm = mvm,
de06a59e 1713 .cmd = cmd,
c87163b9
EP		 1714 };
1715
3b8983b1
MS		 1716 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1717 return false;
1718
de06a59e
EP		 1719 memset(cmd, 0, sizeof(*cmd));
1720 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1721 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1722
1723#ifdef CONFIG_IWLWIFI_DEBUGFS
1724 /* use debugfs filters/macs if override is configured */
1725 if (mvm->dbgfs_bcast_filtering.override) {
1726 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1727 sizeof(cmd->filters));
1728 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1729 sizeof(cmd->macs));
1730 return true;
1731 }
1732#endif
c87163b9
EP		 1733
1734 /* if no filters are configured, do nothing */
1735 if (!mvm->bcast_filters)
de06a59e 1736 return false;
c87163b9
EP		 1737
1738 /* configure and attach these filters for each associated sta vif */
1739 ieee80211_iterate_active_interfaces(
1740 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1741 iwl_mvm_bcast_filter_iterator, &iter_data);
1742
de06a59e
EP		 1743 return true;
1744}
34672bb3
EP		 1745
1746static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1747{
1748 struct iwl_bcast_filter_cmd cmd;
1749
1750 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1751 return 0;
1752
1753 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1754 return 0;
1755
a1022927 1756 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1757 sizeof(cmd), &cmd);
1758}
1759#else
34672bb3 1760static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1761{
1762 return 0;
1763}
1764#endif
1765
a07a8f37
SS		 1766static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1767 struct ieee80211_vif *vif)
1768{
1769 struct iwl_mu_group_mgmt_cmd cmd = {};
1770
1771 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1772 WLAN_MEMBERSHIP_LEN);
1773 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1774 WLAN_USER_POSITION_LEN);
1775
1776 return iwl_mvm_send_cmd_pdu(mvm,
1777 WIDE_ID(DATA_PATH_GROUP,
1778 UPDATE_MU_GROUPS_CMD),
1779 0, sizeof(cmd), &cmd);
1780}
1781
f92659a1
SS		 1782static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1783 struct ieee80211_vif *vif)
1784{
1785 if (vif->mu_mimo_owner) {
1786 struct iwl_mu_group_mgmt_notif *notif = _data;
1787
1788 /*
1789 * MU-MIMO Group Id action frame is little endian. We treat
1790 * the data received from firmware as if it came from the
1791 * action frame, so no conversion is needed.
1792 */
1793 ieee80211_update_mu_groups(vif,
1794 (u8 *)&notif->membership_status,
1795 (u8 *)&notif->user_position);
1796 }
1797}
1798
1799void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1800 struct iwl_rx_cmd_buffer *rxb)
1801{
1802 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1803 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1804
1805 ieee80211_iterate_active_interfaces_atomic(
1806 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1807 iwl_mvm_mu_mimo_iface_iterator, notif);
1808}
1809
8ca151b5
JB		 1810static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1811 struct ieee80211_vif *vif,
1812 struct ieee80211_bss_conf *bss_conf,
1813 u32 changes)
1814{
1815 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1816 int ret;
1817
6e97b0d2
IP		 1818 /*
1819 * Re-calculate the tsf id, as the master-slave relations depend on the
1820 * beacon interval, which was not known when the station interface was
1821 * added.
1822 */
1823 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1824 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1825
03098268
AE		 1826 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1827 mvmvif->lqm_active)
1828 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1829 0, 0);
1830
3dfd3a97
JB		 1831 /*
1832 * If we're not associated yet, take the (new) BSSID before associating
1833 * so the firmware knows. If we're already associated, then use the old
1834 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1835 * branch for disassociation below.
1836 */
1837 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1838 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1839
1840 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1841 if (ret)
1842 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1843
3dfd3a97
JB		 1844 /* after sending it once, adopt mac80211 data */
1845 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1846 mvmvif->associated = bss_conf->assoc;
1847
8ca151b5
JB		 1848 if (changes & BSS_CHANGED_ASSOC) {
1849 if (bss_conf->assoc) {
33cef925
JB		 1850 /* clear statistics to get clean beacon counter */
1851 iwl_mvm_request_statistics(mvm, true);
1852 memset(&mvmvif->beacon_stats, 0,
1853 sizeof(mvmvif->beacon_stats));
1854
8ca151b5 1855 /* add quota for this interface */
7754ae79 1856 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1857 if (ret) {
1858 IWL_ERR(mvm, "failed to update quotas\n");
1859 return;
1860 }
016d27e1
JB		 1861
1862 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1863 &mvm->status)) {
1864 /*
1865 * If we're restarting then the firmware will
1866 * obviously have lost synchronisation with
1867 * the AP. It will attempt to synchronise by
1868 * itself, but we can make it more reliable by
1869 * scheduling a session protection time event.
1870 *
1871 * The firmware needs to receive a beacon to
1872 * catch up with synchronisation, use 110% of
1873 * the beacon interval.
1874 *
1875 * Set a large maximum delay to allow for more
1876 * than a single interface.
1877 */
1878 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1879 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1880 5 * dur, false);
016d27e1 1881 }
1f3b0ff8
LE		 1882
1883 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1884 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1885 if (vif->p2p) {
29a90a49 1886 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1887 iwl_mvm_update_smps(mvm, vif,
1888 IWL_MVM_SMPS_REQ_PROT,
1889 IEEE80211_SMPS_DYNAMIC);
1890 }
8ca151b5 1891 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1892 /*
1893 * If update fails - SF might be running in associated
1894 * mode while disassociated - which is forbidden.
1895 */
1896 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1897 "Failed to update SF upon disassociation\n");
1898
8ca151b5
JB		 1899 /* remove AP station now that the MAC is unassoc */
1900 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1901 if (ret)
1902 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1903
1904 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1905 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1906 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1907 /* remove quota for this interface */
7754ae79 1908 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1909 if (ret)
1910 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1911
1912 if (vif->p2p)
1913 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1914
1915 /* this will take the cleared BSSID from bss_conf */
1916 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1917 if (ret)
1918 IWL_ERR(mvm,
1919 "failed to update MAC %pM (clear after unassoc)\n",
1920 vif->addr);
8ca151b5 1921 }
a20fd398 1922
a07a8f37
SS		 1923 /*
1924 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1925 * However, on HW restart we should restore this data.
a07a8f37
SS		 1926 */
1927 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 1928 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 1929 ret = iwl_mvm_update_mu_groups(mvm, vif);
1930 if (ret)
1931 IWL_ERR(mvm,
1932 "failed to update VHT MU_MIMO groups\n");
1933 }
1934
e59647ea 1935 iwl_mvm_recalc_multicast(mvm);
34672bb3 1936 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 1937
a20fd398
AO		 1938 /* reset rssi values */
1939 mvmvif->bf_data.ave_beacon_signal = 0;
1940
8e484f0b 1941 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1942 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1943 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 1944 if (fw_has_capa(&mvm->fw->ucode_capa,
1945 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1946 iwl_mvm_config_scan(mvm);
989c6505 1947 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1948 /*
1949 * We received a beacon _after_ association so
1950 * remove the session protection.
1951 */
1952 iwl_mvm_remove_time_event(mvm, mvmvif,
1953 &mvmvif->time_event_data);
8ca151b5 1954 }
cc87d322
EH		 1955
1956 if (changes & BSS_CHANGED_BEACON_INFO) {
1957 iwl_mvm_sf_update(mvm, vif, false);
1958 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1959 }
1960
283115fb
AA		 1961 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
1962 /*
1963 * Send power command on every beacon change,
1964 * because we may have not enabled beacon abort yet.
1965 */
1966 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 1967 ret = iwl_mvm_power_update_mac(mvm);
1968 if (ret)
1969 IWL_ERR(mvm, "failed to update power mode\n");
1970 }
1971
88f2fd73
MG		 1972 if (changes & BSS_CHANGED_TXPOWER) {
1973 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1974 bss_conf->txpower);
1975 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1976 }
a20fd398
AO		 1977
1978 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1979 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1980 /* reset cqm events tracking */
1981 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1982 if (mvmvif->bf_data.bf_enabled) {
1983 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1984 if (ret)
1985 IWL_ERR(mvm,
1986 "failed to update CQM thresholds\n");
1987 }
a20fd398 1988 }
2ee8f021
EP		 1989
1990 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1991 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 1992 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 1993 }
8ca151b5
JB		 1994}
1995
5023d966
JB		 1996static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1997 struct ieee80211_vif *vif)
8ca151b5
JB		 1998{
1999 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2000 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2001 int ret;
2002
576eeee9
EP		 2003 /*
2004 * iwl_mvm_mac_ctxt_add() might read directly from the device
2005 * (the system time), so make sure it is available.
2006 */
2007 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2008 if (ret)
2009 return ret;
2010
8ca151b5
JB		 2011 mutex_lock(&mvm->mutex);
2012
2013 /* Send the beacon template */
2014 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2015 if (ret)
2016 goto out_unlock;
2017
6e97b0d2
IP		 2018 /*
2019 * Re-calculate the tsf id, as the master-slave relations depend on the
2020 * beacon interval, which was not known when the AP interface was added.
2021 */
2022 if (vif->type == NL80211_IFTYPE_AP)
2023 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2024
94939080
GG		 2025 mvmvif->ap_assoc_sta_count = 0;
2026
8ca151b5
JB		 2027 /* Add the mac context */
2028 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2029 if (ret)
2030 goto out_unlock;
2031
2032 /* Perform the binding */
2033 ret = iwl_mvm_binding_add_vif(mvm, vif);
2034 if (ret)
2035 goto out_remove;
2036
8ca151b5
JB		 2037 /* Send the bcast station. At this stage the TBTT and DTIM time events
2038 * are added and applied to the scheduler */
013290aa 2039 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2040 if (ret)
2041 goto out_unbind;
2042
5691e218
IP		 2043 /* must be set before quota calculations */
2044 mvmvif->ap_ibss_active = true;
2045
a11e144e 2046 /* power updated needs to be done before quotas */
999609f1 2047 iwl_mvm_power_update_mac(mvm);
a11e144e 2048
7754ae79 2049 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2050 if (ret)
a11e144e 2051 goto out_quota_failed;
8ca151b5 2052
5023d966 2053 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2054 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2055 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2056
29a90a49
EP		 2057 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2058
8e484f0b 2059 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2060
f697267f
AN		 2061 /* we don't support TDLS during DCM */
2062 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2063 iwl_mvm_teardown_tdls_peers(mvm);
2064
939e4904 2065 goto out_unlock;
8ca151b5 2066
a11e144e 2067out_quota_failed:
999609f1 2068 iwl_mvm_power_update_mac(mvm);
5691e218 2069 mvmvif->ap_ibss_active = false;
013290aa 2070 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2071out_unbind:
2072 iwl_mvm_binding_remove_vif(mvm, vif);
2073out_remove:
2074 iwl_mvm_mac_ctxt_remove(mvm, vif);
2075out_unlock:
2076 mutex_unlock(&mvm->mutex);
576eeee9 2077 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2078 return ret;
2079}
2080
5023d966
JB		 2081static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2082 struct ieee80211_vif *vif)
8ca151b5
JB		 2083{
2084 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2085 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2086
38a12b5b
JB		 2087 iwl_mvm_prepare_mac_removal(mvm, vif);
2088
8ca151b5
JB		 2089 mutex_lock(&mvm->mutex);
2090
664322fa 2091 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2092 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2093 iwl_mvm_remove_time_event(mvm, mvmvif,
2094 &mvmvif->time_event_data);
664322fa 2095 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2096 mvmvif->csa_countdown = false;
7f0a7c67 2097 }
664322fa 2098
003e5236
AO		 2099 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2100 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2101 mvm->csa_tx_block_bcn_timeout = 0;
2102 }
2103
5023d966 2104 mvmvif->ap_ibss_active = false;
1c87bbad 2105 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2106
8e484f0b 2107 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2108
29a90a49
EP		 2109 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2110
5023d966 2111 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2112 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2113 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2114
7754ae79 2115 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2116 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2117 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2118
999609f1 2119 iwl_mvm_power_update_mac(mvm);
a11e144e 2120
8ca151b5
JB		 2121 iwl_mvm_mac_ctxt_remove(mvm, vif);
2122
2123 mutex_unlock(&mvm->mutex);
2124}
2125
5023d966
JB		 2126static void
2127iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2128 struct ieee80211_vif *vif,
2129 struct ieee80211_bss_conf *bss_conf,
2130 u32 changes)
8ca151b5 2131{
be2056fc 2132 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2133
be2056fc
IP		 2134 /* Changes will be applied when the AP/IBSS is started */
2135 if (!mvmvif->ap_ibss_active)
2136 return;
2137
863230da 2138 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2139 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2140 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2141 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2142
8ca151b5 2143 /* Need to send a new beacon template to the FW */
863230da
JB		 2144 if (changes & BSS_CHANGED_BEACON &&
2145 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2146 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2147
2148 if (changes & BSS_CHANGED_TXPOWER) {
2149 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2150 bss_conf->txpower);
2151 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2152 }
8ca151b5
JB		 2153}
2154
2155static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2156 struct ieee80211_vif *vif,
2157 struct ieee80211_bss_conf *bss_conf,
2158 u32 changes)
2159{
2160 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2161
576eeee9
EP		 2162 /*
2163 * iwl_mvm_bss_info_changed_station() might call
2164 * iwl_mvm_protect_session(), which reads directly from
2165 * the device (the system time), so make sure it is available.
2166 */
2167 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2168 return;
2169
8ca151b5
JB		 2170 mutex_lock(&mvm->mutex);
2171
723f02ed 2172 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2173 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2174
8ca151b5
JB		 2175 switch (vif->type) {
2176 case NL80211_IFTYPE_STATION:
2177 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2178 break;
2179 case NL80211_IFTYPE_AP:
5023d966
JB		 2180 case NL80211_IFTYPE_ADHOC:
2181 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2182 break;
2183 default:
2184 /* shouldn't happen */
2185 WARN_ON_ONCE(1);
2186 }
2187
2188 mutex_unlock(&mvm->mutex);
576eeee9 2189 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2190}
2191
2192static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2193 struct ieee80211_vif *vif,
c56ef672 2194 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2195{
2196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2197 int ret;
2198
6749dd80
LC		 2199 if (hw_req->req.n_channels == 0 ||
2200 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2201 return -EINVAL;
2202
2203 mutex_lock(&mvm->mutex);
6749dd80 2204 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2205 mutex_unlock(&mvm->mutex);
6749dd80 2206
8ca151b5
JB		 2207 return ret;
2208}
2209
2210static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2211 struct ieee80211_vif *vif)
2212{
2213 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2214
2215 mutex_lock(&mvm->mutex);
2216
e7d3abab
LC		 2217 /* Due to a race condition, it's possible that mac80211 asks
2218 * us to stop a hw_scan when it's already stopped. This can
2219 * happen, for instance, if we stopped the scan ourselves,
2220 * called ieee80211_scan_completed() and the userspace called
2221 * cancel scan scan before ieee80211_scan_work() could run.
2222 * To handle that, simply return if the scan is not running.
2223 */
262888fc 2224 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2225 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2226
2227 mutex_unlock(&mvm->mutex);
2228}
2229
2230static void
2231iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2232 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2233 int num_frames,
2234 enum ieee80211_frame_release_type reason,
2235 bool more_data)
2236{
2237 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2238
3e56eadf 2239 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2240
3e56eadf
JB		 2241 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2242 tids, more_data, false);
2243}
2244
2245static void
2246iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2247 struct ieee80211_sta *sta, u16 tids,
2248 int num_frames,
2249 enum ieee80211_frame_release_type reason,
2250 bool more_data)
2251{
2252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2253
2254 /* Called when we need to transmit (a) frame(s) from agg queue */
2255
2256 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2257 tids, more_data, true);
8ca151b5
JB		 2258}
2259
2260static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2261 struct ieee80211_vif *vif,
2262 enum sta_notify_cmd cmd,
2263 struct ieee80211_sta *sta)
2264{
2265 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2266 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2267 unsigned long txqs = 0, tids = 0;
3e56eadf 2268 int tid;
8ca151b5 2269
c22b0ff5
EG		 2270 spin_lock_bh(&mvmsta->lock);
2271 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2272 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2273
2274 if (tid_data->state != IWL_AGG_ON &&
2275 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2276 continue;
2277
2278 __set_bit(tid_data->txq_id, &txqs);
2279
2280 if (iwl_mvm_tid_queued(tid_data) == 0)
2281 continue;
2282
2283 __set_bit(tid, &tids);
2284 }
2285
8ca151b5
JB		 2286 switch (cmd) {
2287 case STA_NOTIFY_SLEEP:
e3d4bc8c 2288 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2289 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2290
c22b0ff5 2291 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2292 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2293
2294 if (txqs)
2295 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2296 /*
2297 * The fw updates the STA to be asleep. Tx packets on the Tx
2298 * queues to this station will not be transmitted. The fw will
2299 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2300 */
2301 break;
2302 case STA_NOTIFY_AWAKE:
881acd89 2303 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2304 break;
c22b0ff5
EG		 2305
2306 if (txqs)
2307 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2308 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2309 break;
2310 default:
2311 break;
2312 }
c22b0ff5 2313 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2314}
2315
1ddbbb0c
JB		 2316static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2317 struct ieee80211_vif *vif,
2318 struct ieee80211_sta *sta)
2319{
2320 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2321 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2322
2323 /*
2324 * This is called before mac80211 does RCU synchronisation,
2325 * so here we already invalidate our internal RCU-protected
2326 * station pointer. The rest of the code will thus no longer
2327 * be able to find the station this way, and we don't rely
2328 * on further RCU synchronisation after the sta_state()
2329 * callback deleted the station.
2330 */
2331 mutex_lock(&mvm->mutex);
2332 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2333 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2334 ERR_PTR(-ENOENT));
94939080 2335
1ddbbb0c
JB		 2336 mutex_unlock(&mvm->mutex);
2337}
2338
bd1ba664
JB		 2339static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2340 const u8 *bssid)
2341{
2342 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2343 return;
2344
cee5a882
AA		 2345 if (vif->p2p && !iwl_mvm_is_p2p_standalone_uapsd_supported(mvm)) {
2346 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2347 return;
2348 }
2349
11dee0b4
EG		 2350 if (!vif->p2p &&
2351 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2352 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2353 return;
2354 }
2355
2356 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2357}
2358
1e8f1329
GBA		 2359static void
2360iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2361 struct ieee80211_vif *vif, u8 *peer_addr,
2362 enum nl80211_tdls_operation action)
2363{
2364 struct iwl_fw_dbg_trigger_tlv *trig;
2365 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2366
2367 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2368 return;
2369
2370 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2371 tdls_trig = (void *)trig->data;
2372 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2373 return;
2374
2375 if (!(tdls_trig->action_bitmap & BIT(action)))
2376 return;
2377
2378 if (tdls_trig->peer_mode &&
2379 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2380 return;
2381
2382 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2383 "TDLS event occurred, peer %pM, action %d",
2384 peer_addr, action);
2385}
2386
24afba76
LK		 2387static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2388 struct iwl_mvm_sta *mvm_sta)
2389{
2390 struct iwl_mvm_tid_data *tid_data;
2391 struct sk_buff *skb;
2392 int i;
2393
2394 spin_lock_bh(&mvm_sta->lock);
2395 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2396 tid_data = &mvm_sta->tid_data[i];
2397 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
2398 ieee80211_free_txskb(mvm->hw, skb);
2399 }
2400 spin_unlock_bh(&mvm_sta->lock);
2401}
2402
8ca151b5
JB		 2403static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2404 struct ieee80211_vif *vif,
2405 struct ieee80211_sta *sta,
2406 enum ieee80211_sta_state old_state,
2407 enum ieee80211_sta_state new_state)
2408{
2409 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2410 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2411 int ret;
2412
2413 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2414 sta->addr, old_state, new_state);
2415
2416 /* this would be a mac80211 bug ... but don't crash */
2417 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2418 return -EINVAL;
2419
2420 /* if a STA is being removed, reuse its ID */
2421 flush_work(&mvm->sta_drained_wk);
2422
24afba76
LK		 2423 /*
2424 * If we are in a STA removal flow and in DQA mode:
2425 *
2426 * This is after the sync_rcu part, so the queues have already been
2427 * flushed. No more TXs on their way in mac80211's path, and no more in
2428 * the queues.
2429 * Also, we won't be getting any new TX frames for this station.
2430 * What we might have are deferred TX frames that need to be taken care
2431 * of.
2432 *
2433 * Drop any still-queued deferred-frame before removing the STA, and
2434 * make sure the worker is no longer handling frames for this STA.
2435 */
2436 if (old_state == IEEE80211_STA_NONE &&
2437 new_state == IEEE80211_STA_NOTEXIST &&
2438 iwl_mvm_is_dqa_supported(mvm)) {
2439 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2440
2441 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2442 flush_work(&mvm->add_stream_wk);
2443
2444 /*
2445 * No need to make sure deferred TX indication is off since the
2446 * worker will already remove it if it was on
2447 */
2448 }
2449
8ca151b5
JB		 2450 mutex_lock(&mvm->mutex);
2451 if (old_state == IEEE80211_STA_NOTEXIST &&
2452 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2453 /*
2454 * Firmware bug - it'll crash if the beacon interval is less
2455 * than 16. We can't avoid connecting at all, so refuse the
2456 * station state change, this will cause mac80211 to abandon
2457 * attempts to connect to this AP, and eventually wpa_s will
2458 * blacklist the AP...
2459 */
2460 if (vif->type == NL80211_IFTYPE_STATION &&
2461 vif->bss_conf.beacon_int < 16) {
2462 IWL_ERR(mvm,
2463 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2464 sta->addr, vif->bss_conf.beacon_int);
2465 ret = -EINVAL;
2466 goto out_unlock;
2467 }
cf7b491d
AN		 2468
2469 if (sta->tdls &&
2470 (vif->p2p ||
fa3d07e4
AN		 2471 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2472 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2473 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2474 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2475 ret = -EBUSY;
2476 goto out_unlock;
2477 }
2478
8ca151b5 2479 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2480 if (sta->tdls && ret == 0) {
fa3d07e4 2481 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2482 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2483 NL80211_TDLS_SETUP);
2484 }
8ca151b5
JB		 2485 } else if (old_state == IEEE80211_STA_NONE &&
2486 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2487 /*
2488 * EBS may be disabled due to previous failures reported by FW.
2489 * Reset EBS status here assuming environment has been changed.
2490 */
2491 mvm->last_ebs_successful = true;
bd1ba664 2492 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2493 ret = 0;
2494 } else if (old_state == IEEE80211_STA_AUTH &&
2495 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2496 if (vif->type == NL80211_IFTYPE_AP) {
2497 mvmvif->ap_assoc_sta_count++;
2498 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2499 }
7a453973
JB		 2500 ret = iwl_mvm_update_sta(mvm, vif, sta);
2501 if (ret == 0)
2502 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2503 mvmvif->phy_ctxt->channel->band,
2504 true);
8ca151b5
JB		 2505 } else if (old_state == IEEE80211_STA_ASSOC &&
2506 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2507
2508 /* we don't support TDLS during DCM */
2509 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2510 iwl_mvm_teardown_tdls_peers(mvm);
2511
1e8f1329
GBA		 2512 if (sta->tdls)
2513 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2514 NL80211_TDLS_ENABLE_LINK);
2515
7df15b1e 2516 /* enable beacon filtering */
fa7b2e7f 2517 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2518 ret = 0;
2519 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2520 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2521 /* disable beacon filtering */
a1022927 2522 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2523 ret = 0;
2524 } else if (old_state == IEEE80211_STA_ASSOC &&
2525 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2526 if (vif->type == NL80211_IFTYPE_AP) {
2527 mvmvif->ap_assoc_sta_count--;
2528 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2529 }
8ca151b5
JB		 2530 ret = 0;
2531 } else if (old_state == IEEE80211_STA_AUTH &&
2532 new_state == IEEE80211_STA_NONE) {
2533 ret = 0;
2534 } else if (old_state == IEEE80211_STA_NONE &&
2535 new_state == IEEE80211_STA_NOTEXIST) {
2536 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2537 if (sta->tdls) {
fa3d07e4 2538 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2539 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2540 NL80211_TDLS_DISABLE_LINK);
2541 }
8ca151b5
JB		 2542 } else {
2543 ret = -EIO;
2544 }
48bc1307 2545 out_unlock:
8ca151b5
JB		 2546 mutex_unlock(&mvm->mutex);
2547
9c126cd6
LK		 2548 if (sta->tdls && ret == 0) {
2549 if (old_state == IEEE80211_STA_NOTEXIST &&
2550 new_state == IEEE80211_STA_NONE)
2551 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2552 else if (old_state == IEEE80211_STA_NONE &&
2553 new_state == IEEE80211_STA_NOTEXIST)
2554 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2555 }
2556
8ca151b5
JB		 2557 return ret;
2558}
2559
2560static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2561{
2562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2563
2564 mvm->rts_threshold = value;
2565
2566 return 0;
2567}
2568
1f3b0ff8
LE		 2569static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2570 struct ieee80211_vif *vif,
2571 struct ieee80211_sta *sta, u32 changed)
2572{
2573 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2574
2575 if (vif->type == NL80211_IFTYPE_STATION &&
2576 changed & IEEE80211_RC_NSS_CHANGED)
2577 iwl_mvm_sf_update(mvm, vif, false);
2578}
2579
8ca151b5
JB		 2580static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2581 struct ieee80211_vif *vif, u16 ac,
2582 const struct ieee80211_tx_queue_params *params)
2583{
2584 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2585 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2586
2587 mvmvif->queue_params[ac] = *params;
2588
2589 /*
2590 * No need to update right away, we'll get BSS_CHANGED_QOS
2591 * The exception is P2P_DEVICE interface which needs immediate update.
2592 */
2593 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2594 int ret;
2595
2596 mutex_lock(&mvm->mutex);
3dfd3a97 2597 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2598 mutex_unlock(&mvm->mutex);
2599 return ret;
2600 }
2601 return 0;
2602}
2603
2604static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2605 struct ieee80211_vif *vif)
2606{
2607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2608 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2609 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2610
2611 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2612 return;
2613
576eeee9
EP		 2614 /*
2615 * iwl_mvm_protect_session() reads directly from the device
2616 * (the system time), so make sure it is available.
2617 */
2618 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2619 return;
2620
8ca151b5
JB		 2621 mutex_lock(&mvm->mutex);
2622 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2623 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2624 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2625
2626 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2627}
2628
35a000b7
DS		 2629static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2630 struct ieee80211_vif *vif,
2631 struct cfg80211_sched_scan_request *req,
633e2713 2632 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2633{
2634 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2635
35a000b7 2636 int ret;
4660dfbb 2637
35a000b7
DS		 2638 mutex_lock(&mvm->mutex);
2639
1f940386 2640 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2641 ret = -EBUSY;
2642 goto out;
2643 }
2644
19945dfb 2645 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2646
35a000b7
DS		 2647out:
2648 mutex_unlock(&mvm->mutex);
2649 return ret;
2650}
2651
37e3308c
JB		 2652static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2653 struct ieee80211_vif *vif)
35a000b7
DS		 2654{
2655 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2656 int ret;
35a000b7
DS		 2657
2658 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2659
2660 /* Due to a race condition, it's possible that mac80211 asks
2661 * us to stop a sched_scan when it's already stopped. This
2662 * can happen, for instance, if we stopped the scan ourselves,
2663 * called ieee80211_sched_scan_stopped() and the userspace called
2664 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2665 * could run. To handle this, simply return if the scan is
2666 * not running.
2667 */
262888fc 2668 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2669 mutex_unlock(&mvm->mutex);
2670 return 0;
2671 }
2672
c7d42480 2673 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2674 mutex_unlock(&mvm->mutex);
33ea27f6 2675 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2676
33ea27f6 2677 return ret;
35a000b7
DS		 2678}
2679
8ca151b5
JB		 2680static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2681 enum set_key_cmd cmd,
2682 struct ieee80211_vif *vif,
2683 struct ieee80211_sta *sta,
2684 struct ieee80211_key_conf *key)
2685{
2686 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2687 struct iwl_mvm_sta *mvmsta;
2688 struct iwl_mvm_key_pn *ptk_pn;
2689 int keyidx = key->keyidx;
8ca151b5 2690 int ret;
d6ee54a9 2691 u8 key_offset;
8ca151b5
JB		 2692
2693 if (iwlwifi_mod_params.sw_crypto) {
2694 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2695 return -EOPNOTSUPP;
2696 }
2697
2698 switch (key->cipher) {
2699 case WLAN_CIPHER_SUITE_TKIP:
2700 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2701 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2702 break;
ca8c0f4b
JB		 2703 case WLAN_CIPHER_SUITE_CCMP:
2704 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2705 break;
8ca151b5 2706 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2707 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2708 break;
2709 case WLAN_CIPHER_SUITE_WEP40:
2710 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2711 /* For non-client mode, only use WEP keys for TX as we probably
2712 * don't have a station yet anyway and would then have to keep
2713 * track of the keys, linking them to each of the clients/peers
2714 * as they appear. For now, don't do that, for performance WEP
2715 * offload doesn't really matter much, but we need it for some
2716 * other offload features in client mode.
8ca151b5 2717 */
ba3943b0
JB		 2718 if (vif->type != NL80211_IFTYPE_STATION)
2719 return 0;
2720 break;
8ca151b5 2721 default:
e36e5433
MS		 2722 /* currently FW supports only one optional cipher scheme */
2723 if (hw->n_cipher_schemes &&
2724 hw->cipher_schemes->cipher == key->cipher)
2725 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2726 else
2727 return -EOPNOTSUPP;
8ca151b5
JB		 2728 }
2729
2730 mutex_lock(&mvm->mutex);
2731
2732 switch (cmd) {
2733 case SET_KEY:
5023d966
JB		 2734 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2735 vif->type == NL80211_IFTYPE_AP) && !sta) {
2736 /*
2737 * GTK on AP interface is a TX-only key, return 0;
2738 * on IBSS they're per-station and because we're lazy
2739 * we don't support them for RX, so do the same.
81279c49 2740 * CMAC in AP/IBSS modes must be done in software.
5023d966 2741 */
81279c49
JB		 2742 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC)
2743 ret = -EOPNOTSUPP;
2744 else
2745 ret = 0;
6caffd4f
JB		 2746 key->hw_key_idx = STA_KEY_IDX_INVALID;
2747 break;
2748 }
2749
b546dcd6
JB		 2750 /* During FW restart, in order to restore the state as it was,
2751 * don't try to reprogram keys we previously failed for.
2752 */
2753 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2754 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2755 IWL_DEBUG_MAC80211(mvm,
2756 "skip invalid idx key programming during restart\n");
2757 ret = 0;
2758 break;
2759 }
2760
f5e28eac
JB		 2761 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2762 sta && iwl_mvm_has_new_rx_api(mvm) &&
2763 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2764 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2765 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2766 struct ieee80211_key_seq seq;
2767 int tid, q;
2768
2769 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2770 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2771 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2772 mvm->trans->num_rx_queues *
2773 sizeof(ptk_pn->q[0]),
2774 GFP_KERNEL);
2775 if (!ptk_pn) {
2776 ret = -ENOMEM;
2777 break;
2778 }
2779
2780 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2781 ieee80211_get_key_rx_seq(key, tid, &seq);
2782 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2783 memcpy(ptk_pn->q[q].pn[tid],
2784 seq.ccmp.pn,
2785 IEEE80211_CCMP_PN_LEN);
2786 }
2787
2788 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2789 }
2790
d6ee54a9
LC		 2791 /* in HW restart reuse the index, otherwise request a new one */
2792 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2793 key_offset = key->hw_key_idx;
2794 else
2795 key_offset = STA_KEY_IDX_INVALID;
2796
8ca151b5 2797 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2798 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2799 if (ret) {
2800 IWL_WARN(mvm, "set key failed\n");
2801 /*
2802 * can't add key for RX, but we don't need it
2803 * in the device for TX so still return 0
2804 */
6caffd4f 2805 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2806 ret = 0;
2807 }
2808
2809 break;
2810 case DISABLE_KEY:
6caffd4f
JB		 2811 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2812 ret = 0;
2813 break;
2814 }
2815
f5e28eac
JB		 2816 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2817 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2818 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2819 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2820 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2821 ptk_pn = rcu_dereference_protected(
2822 mvmsta->ptk_pn[keyidx],
2823 lockdep_is_held(&mvm->mutex));
2824 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
2825 if (ptk_pn)
2826 kfree_rcu(ptk_pn, rcu_head);
2827 }
2828
8ca151b5
JB		 2829 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2830 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2831 break;
2832 default:
2833 ret = -EINVAL;
2834 }
2835
2836 mutex_unlock(&mvm->mutex);
2837 return ret;
2838}
2839
2840static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2841 struct ieee80211_vif *vif,
2842 struct ieee80211_key_conf *keyconf,
2843 struct ieee80211_sta *sta,
2844 u32 iv32, u16 *phase1key)
2845{
2846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2847
5023d966
JB		 2848 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2849 return;
2850
8ca151b5
JB		 2851 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2852}
2853
2854
b112889c
AM		 2855static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2856 struct iwl_rx_packet *pkt, void *data)
2857{
2858 struct iwl_mvm *mvm =
2859 container_of(notif_wait, struct iwl_mvm, notif_wait);
2860 struct iwl_hs20_roc_res *resp;
2861 int resp_len = iwl_rx_packet_payload_len(pkt);
2862 struct iwl_mvm_time_event_data *te_data = data;
2863
2864 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2865 return true;
2866
2867 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2868 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2869 return true;
2870 }
2871
2872 resp = (void *)pkt->data;
2873
2874 IWL_DEBUG_TE(mvm,
2875 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2876 resp->status, resp->event_unique_id);
2877
2878 te_data->uid = le32_to_cpu(resp->event_unique_id);
2879 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2880 te_data->uid);
2881
2882 spin_lock_bh(&mvm->time_event_lock);
2883 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2884 spin_unlock_bh(&mvm->time_event_lock);
2885
2886 return true;
2887}
2888
dc28e12f
MG		 2889#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2890#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2891#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2892#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2893#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 2894static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2895 struct ieee80211_channel *channel,
2896 struct ieee80211_vif *vif,
2897 int duration)
2898{
2899 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2900 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2901 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 2902 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 2903 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 2904 u32 dtim_interval = vif->bss_conf.dtim_period *
2905 vif->bss_conf.beacon_int;
2906 u32 req_dur, delay;
b112889c
AM		 2907 struct iwl_hs20_roc_req aux_roc_req = {
2908 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2909 .id_and_color =
2910 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2911 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2912 /* Set the channel info data */
2913 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2914 PHY_BAND_24 : PHY_BAND_5,
2915 .channel_info.channel = channel->hw_value,
2916 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2917 /* Set the time and duration */
2918 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 2919 };
2920
dc28e12f
MG		 2921 delay = AUX_ROC_MIN_DELAY;
2922 req_dur = MSEC_TO_TU(duration);
2923
2924 /*
2925 * If we are associated we want the delay time to be at least one
2926 * dtim interval so that the FW can wait until after the DTIM and
2927 * then start the time event, this will potentially allow us to
2928 * remain off-channel for the max duration.
2929 * Since we want to use almost a whole dtim interval we would also
2930 * like the delay to be for 2-3 dtim intervals, in case there are
2931 * other time events with higher priority.
2932 */
2933 if (vif->bss_conf.assoc) {
2934 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
2935 /* We cannot remain off-channel longer than the DTIM interval */
2936 if (dtim_interval <= req_dur) {
2937 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
2938 if (req_dur <= AUX_ROC_MIN_DURATION)
2939 req_dur = dtim_interval -
2940 AUX_ROC_MIN_SAFETY_BUFFER;
2941 }
2942 }
2943
2944 aux_roc_req.duration = cpu_to_le32(req_dur);
2945 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
2946
2947 IWL_DEBUG_TE(mvm,
2948 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2949 channel->hw_value, req_dur, duration, delay,
2950 dtim_interval);
b112889c
AM		 2951 /* Set the node address */
2952 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2953
a6cc5163
MG		 2954 lockdep_assert_held(&mvm->mutex);
2955
2956 spin_lock_bh(&mvm->time_event_lock);
2957
2958 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2959 spin_unlock_bh(&mvm->time_event_lock);
2960 return -EIO;
2961 }
2962
b112889c
AM		 2963 te_data->vif = vif;
2964 te_data->duration = duration;
2965 te_data->id = HOT_SPOT_CMD;
2966
b112889c
AM		 2967 spin_unlock_bh(&mvm->time_event_lock);
2968
2969 /*
2970 * Use a notification wait, which really just processes the
2971 * command response and doesn't wait for anything, in order
2972 * to be able to process the response and get the UID inside
2973 * the RX path. Using CMD_WANT_SKB doesn't work because it
2974 * stores the buffer and then wakes up this thread, by which
2975 * time another notification (that the time event started)
2976 * might already be processed unsuccessfully.
2977 */
2978 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2979 time_event_response,
2980 ARRAY_SIZE(time_event_response),
2981 iwl_mvm_rx_aux_roc, te_data);
2982
2983 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2984 &aux_roc_req);
2985
2986 if (res) {
2987 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2988 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2989 goto out_clear_te;
2990 }
2991
2992 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2993 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2994 /* should never fail */
2995 WARN_ON_ONCE(res);
2996
2997 if (res) {
2998 out_clear_te:
2999 spin_lock_bh(&mvm->time_event_lock);
3000 iwl_mvm_te_clear_data(mvm, te_data);
3001 spin_unlock_bh(&mvm->time_event_lock);
3002 }
3003
3004 return res;
3005}
3006
8ca151b5
JB		 3007static int iwl_mvm_roc(struct ieee80211_hw *hw,
3008 struct ieee80211_vif *vif,
3009 struct ieee80211_channel *channel,
d339d5ca
IP		 3010 int duration,
3011 enum ieee80211_roc_type type)
8ca151b5
JB		 3012{
3013 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3014 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3015 struct cfg80211_chan_def chandef;
31d385ae
IP		 3016 struct iwl_mvm_phy_ctxt *phy_ctxt;
3017 int ret, i;
3018
3019 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3020 duration, type);
8ca151b5 3021
6ed13164
MG		 3022 flush_work(&mvm->roc_done_wk);
3023
a6cc5163
MG		 3024 mutex_lock(&mvm->mutex);
3025
b112889c
AM		 3026 switch (vif->type) {
3027 case NL80211_IFTYPE_STATION:
859d914c
JB		 3028 if (fw_has_capa(&mvm->fw->ucode_capa,
3029 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3030 /* Use aux roc framework (HS20) */
3031 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3032 vif, duration);
3033 goto out_unlock;
3034 }
3035 IWL_ERR(mvm, "hotspot not supported\n");
3036 ret = -EINVAL;
a6cc5163 3037 goto out_unlock;
b112889c
AM		 3038 case NL80211_IFTYPE_P2P_DEVICE:
3039 /* handle below */
3040 break;
3041 default:
3042 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3043 ret = -EINVAL;
3044 goto out_unlock;
8ca151b5
JB		 3045 }
3046
31d385ae
IP		 3047 for (i = 0; i < NUM_PHY_CTX; i++) {
3048 phy_ctxt = &mvm->phy_ctxts[i];
3049 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3050 continue;
3051
3052 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3053 /*
3054 * Unbind the P2P_DEVICE from the current PHY context,
3055 * and if the PHY context is not used remove it.
3056 */
3057 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3058 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3059 goto out_unlock;
3060
3061 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3062
3063 /* Bind the P2P_DEVICE to the current PHY Context */
3064 mvmvif->phy_ctxt = phy_ctxt;
3065
3066 ret = iwl_mvm_binding_add_vif(mvm, vif);
3067 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3068 goto out_unlock;
3069
3070 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3071 goto schedule_time_event;
3072 }
3073 }
3074
3075 /* Need to update the PHY context only if the ROC channel changed */
3076 if (channel == mvmvif->phy_ctxt->channel)
3077 goto schedule_time_event;
3078
8ca151b5 3079 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3080
31d385ae
IP		 3081 /*
3082 * Change the PHY context configuration as it is currently referenced
3083 * only by the P2P Device MAC
3084 */
3085 if (mvmvif->phy_ctxt->ref == 1) {
3086 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3087 &chandef, 1, 1);
3088 if (ret)
3089 goto out_unlock;
3090 } else {
3091 /*
3092 * The PHY context is shared with other MACs. Need to remove the
3093 * P2P Device from the binding, allocate an new PHY context and
3094 * create a new binding
3095 */
3096 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3097 if (!phy_ctxt) {
3098 ret = -ENOSPC;
3099 goto out_unlock;
3100 }
3101
3102 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3103 1, 1);
3104 if (ret) {
3105 IWL_ERR(mvm, "Failed to change PHY context\n");
3106 goto out_unlock;
3107 }
3108
3109 /* Unbind the P2P_DEVICE from the current PHY context */
3110 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3111 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3112 goto out_unlock;
3113
3114 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3115
3116 /* Bind the P2P_DEVICE to the new allocated PHY context */
3117 mvmvif->phy_ctxt = phy_ctxt;
3118
3119 ret = iwl_mvm_binding_add_vif(mvm, vif);
3120 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3121 goto out_unlock;
3122
3123 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3124 }
3125
3126schedule_time_event:
8ca151b5 3127 /* Schedule the time events */
e635c797 3128 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3129
31d385ae 3130out_unlock:
8ca151b5
JB		 3131 mutex_unlock(&mvm->mutex);
3132 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3133 return ret;
3134}
3135
3136static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3137{
3138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3139
3140 IWL_DEBUG_MAC80211(mvm, "enter\n");
3141
3142 mutex_lock(&mvm->mutex);
bf5da87f 3143 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3144 mutex_unlock(&mvm->mutex);
3145
3146 IWL_DEBUG_MAC80211(mvm, "leave\n");
3147 return 0;
3148}
3149
b08c1d97
LC		 3150static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3151 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3152{
fe0f2de3
IP		 3153 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3154 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3155 int ret;
3156
b08c1d97
LC		 3157 lockdep_assert_held(&mvm->mutex);
3158
53a9d61e 3159 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3160
fe0f2de3
IP		 3161 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3162 if (!phy_ctxt) {
3163 ret = -ENOSPC;
3164 goto out;
3165 }
8ca151b5 3166
dcbc3e1a 3167 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3168 ctx->rx_chains_static,
3169 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3170 if (ret) {
3171 IWL_ERR(mvm, "Failed to add PHY context\n");
3172 goto out;
3173 }
3174
53a9d61e 3175 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3176 *phy_ctxt_id = phy_ctxt->id;
3177out:
b08c1d97
LC		 3178 return ret;
3179}
3180
3181static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3182 struct ieee80211_chanctx_conf *ctx)
3183{
3184 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3185 int ret;
3186
3187 mutex_lock(&mvm->mutex);
3188 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3189 mutex_unlock(&mvm->mutex);
b08c1d97 3190
8ca151b5
JB		 3191 return ret;
3192}
3193
b08c1d97
LC		 3194static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3195 struct ieee80211_chanctx_conf *ctx)
3196{
3197 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3198 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3199
3200 lockdep_assert_held(&mvm->mutex);
3201
3202 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3203}
3204
8ca151b5
JB		 3205static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3206 struct ieee80211_chanctx_conf *ctx)
3207{
3208 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3209
3210 mutex_lock(&mvm->mutex);
b08c1d97 3211 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3212 mutex_unlock(&mvm->mutex);
3213}
3214
3215static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3216 struct ieee80211_chanctx_conf *ctx,
3217 u32 changed)
3218{
3219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3220 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3221 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3222
31d385ae
IP		 3223 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3224 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3225 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3226 IEEE80211_CHANCTX_CHANGE_RADAR |
3227 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3228 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3229 phy_ctxt->ref, changed))
3230 return;
3231
8ca151b5 3232 mutex_lock(&mvm->mutex);
4d66449a 3233 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3234 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3235 ctx->rx_chains_static,
3236 ctx->rx_chains_dynamic);
3237 mutex_unlock(&mvm->mutex);
3238}
3239
b08c1d97
LC		 3240static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3241 struct ieee80211_vif *vif,
f0c97783
LC		 3242 struct ieee80211_chanctx_conf *ctx,
3243 bool switching_chanctx)
8ca151b5 3244{
fe0f2de3
IP		 3245 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3246 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3247 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3248 int ret;
3249
b08c1d97 3250 lockdep_assert_held(&mvm->mutex);
8ca151b5 3251
fe0f2de3 3252 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3253
3254 switch (vif->type) {
3255 case NL80211_IFTYPE_AP:
4741dd04
LC		 3256 /* only needed if we're switching chanctx (i.e. during CSA) */
3257 if (switching_chanctx) {
bd3398e2
AO		 3258 mvmvif->ap_ibss_active = true;
3259 break;
3260 }
5023d966 3261 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3262 /*
3263 * The AP binding flow is handled as part of the start_ap flow
5023d966 3264 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3265 */
3266 ret = 0;
b08c1d97 3267 goto out;
8ca151b5 3268 case NL80211_IFTYPE_STATION:
2533edce 3269 break;
8ca151b5 3270 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3271 /* always disable PS when a monitor interface is active */
3272 mvmvif->ps_disabled = true;
8ca151b5
JB		 3273 break;
3274 default:
3275 ret = -EINVAL;
b08c1d97 3276 goto out;
8ca151b5
JB		 3277 }
3278
3279 ret = iwl_mvm_binding_add_vif(mvm, vif);
3280 if (ret)
b08c1d97 3281 goto out;
8ca151b5
JB		 3282
3283 /*
92d85562
AB		 3284 * Power state must be updated before quotas,
3285 * otherwise fw will complain.
3286 */
999609f1 3287 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3288
3289 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3290 * interfaces. For the other types, the bss_info changed flow
3291 * will handle quota settings.
3292 */
3293 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3294 mvmvif->monitor_active = true;
7754ae79 3295 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3296 if (ret)
3297 goto out_remove_binding;
0e39eb03
CRI		 3298
3299 ret = iwl_mvm_add_snif_sta(mvm, vif);
3300 if (ret)
3301 goto out_remove_binding;
3302
8ca151b5
JB		 3303 }
3304
bd3398e2 3305 /* Handle binding during CSA */
a57c688d 3306 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3307 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3308 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3309 }
3310
4741dd04 3311 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3312 u32 duration = 2 * vif->bss_conf.beacon_int;
3313
3314 /* iwl_mvm_protect_session() reads directly from the
3315 * device (the system time), so make sure it is
3316 * available.
3317 */
3318 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3319 if (ret)
3320 goto out_remove_binding;
3321
3322 /* Protect the session to make sure we hear the first
3323 * beacon on the new channel.
3324 */
3325 iwl_mvm_protect_session(mvm, vif, duration, duration,
3326 vif->bss_conf.beacon_int / 2,
3327 true);
3328
3329 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3330
7754ae79 3331 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3332 }
3333
b08c1d97 3334 goto out;
8ca151b5 3335
b08c1d97 3336out_remove_binding:
8ca151b5 3337 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3338 iwl_mvm_power_update_mac(mvm);
b08c1d97 3339out:
8ca151b5
JB		 3340 if (ret)
3341 mvmvif->phy_ctxt = NULL;
3342 return ret;
3343}
b08c1d97
LC		 3344static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3345 struct ieee80211_vif *vif,
3346 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3347{
3348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3349 int ret;
8ca151b5
JB		 3350
3351 mutex_lock(&mvm->mutex);
f0c97783 3352 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3353 mutex_unlock(&mvm->mutex);
3354
3355 return ret;
3356}
3357
3358static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3359 struct ieee80211_vif *vif,
f0c97783
LC		 3360 struct ieee80211_chanctx_conf *ctx,
3361 bool switching_chanctx)
b08c1d97
LC		 3362{
3363 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3364 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3365
3366 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3367
3368 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3369
8ca151b5 3370 switch (vif->type) {
5023d966 3371 case NL80211_IFTYPE_ADHOC:
b08c1d97 3372 goto out;
8ca151b5 3373 case NL80211_IFTYPE_MONITOR:
1e1391ca 3374 mvmvif->monitor_active = false;
2533edce 3375 mvmvif->ps_disabled = false;
0e39eb03 3376 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3377 break;
bd3398e2
AO		 3378 case NL80211_IFTYPE_AP:
3379 /* This part is triggered only during CSA */
4741dd04 3380 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3381 goto out;
bd3398e2 3382
7ef0aab6
AO		 3383 mvmvif->csa_countdown = false;
3384
003e5236
AO		 3385 /* Set CS bit on all the stations */
3386 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3387
3388 /* Save blocked iface, the timeout is set on the next beacon */
3389 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3390
bd3398e2 3391 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3392 break;
3393 case NL80211_IFTYPE_STATION:
3394 if (!switching_chanctx)
3395 break;
3396
3397 disabled_vif = vif;
3398
3dfd3a97 3399 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3400 break;
8ca151b5
JB		 3401 default:
3402 break;
3403 }
3404
7754ae79 3405 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3406 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3407
b08c1d97 3408out:
a11e144e 3409 mvmvif->phy_ctxt = NULL;
999609f1 3410 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3411}
3412
3413static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3414 struct ieee80211_vif *vif,
3415 struct ieee80211_chanctx_conf *ctx)
3416{
3417 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3418
3419 mutex_lock(&mvm->mutex);
f0c97783 3420 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3421 mutex_unlock(&mvm->mutex);
3422}
3423
50cc9574
LC		 3424static int
3425iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3426 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3427{
b08c1d97
LC		 3428 int ret;
3429
b08c1d97 3430 mutex_lock(&mvm->mutex);
f0c97783 3431 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3432 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3433
3434 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3435 if (ret) {
3436 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3437 goto out_reassign;
3438 }
3439
f0c97783
LC		 3440 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3441 true);
b08c1d97
LC		 3442 if (ret) {
3443 IWL_ERR(mvm,
3444 "failed to assign new_ctx during channel switch\n");
3445 goto out_remove;
3446 }
3447
f697267f
AN		 3448 /* we don't support TDLS during DCM - can be caused by channel switch */
3449 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3450 iwl_mvm_teardown_tdls_peers(mvm);
3451
b08c1d97
LC		 3452 goto out;
3453
3454out_remove:
3455 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3456
3457out_reassign:
6fd1fb63 3458 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3459 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3460 goto out_restart;
3461 }
3462
6fd1fb63
LC		 3463 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3464 true)) {
b08c1d97
LC		 3465 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3466 goto out_restart;
3467 }
3468
3469 goto out;
3470
3471out_restart:
3472 /* things keep failing, better restart the hw */
3473 iwl_mvm_nic_restart(mvm, false);
3474
3475out:
3476 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3477
3478 return ret;
3479}
3480
48a256e8
LC		 3481static int
3482iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3483 struct ieee80211_vif_chanctx_switch *vifs)
3484{
3485 int ret;
3486
3487 mutex_lock(&mvm->mutex);
3488 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3489
3490 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3491 true);
3492 if (ret) {
3493 IWL_ERR(mvm,
3494 "failed to assign new_ctx during channel switch\n");
3495 goto out_reassign;
3496 }
3497
3498 goto out;
3499
3500out_reassign:
3501 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3502 true)) {
3503 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3504 goto out_restart;
3505 }
3506
3507 goto out;
3508
3509out_restart:
3510 /* things keep failing, better restart the hw */
3511 iwl_mvm_nic_restart(mvm, false);
3512
3513out:
3514 mutex_unlock(&mvm->mutex);
3515
3516 return ret;
3517}
3518
50cc9574
LC		 3519static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3520 struct ieee80211_vif_chanctx_switch *vifs,
3521 int n_vifs,
3522 enum ieee80211_chanctx_switch_mode mode)
3523{
3524 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3525 int ret;
3526
3527 /* we only support a single-vif right now */
3528 if (n_vifs > 1)
3529 return -EOPNOTSUPP;
3530
3531 switch (mode) {
3532 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3533 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3534 break;
3535 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3536 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3537 break;
3538 default:
3539 ret = -EOPNOTSUPP;
3540 break;
3541 }
3542
b08c1d97
LC		 3543 return ret;
3544}
3545
8ca151b5
JB		 3546static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3547 struct ieee80211_sta *sta,
3548 bool set)
3549{
3550 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3551 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3552
3553 if (!mvm_sta || !mvm_sta->vif) {
3554 IWL_ERR(mvm, "Station is not associated to a vif\n");
3555 return -EINVAL;
3556 }
3557
3558 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3559}
3560
507cadf2
DS		 3561#ifdef CONFIG_NL80211_TESTMODE
3562static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3563 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3564 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3565 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3566};
3567
3568static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3569 struct ieee80211_vif *vif,
3570 void *data, int len)
3571{
3572 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3573 int err;
3574 u32 noa_duration;
3575
3576 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3577 if (err)
3578 return err;
3579
3580 if (!tb[IWL_MVM_TM_ATTR_CMD])
3581 return -EINVAL;
3582
3583 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3584 case IWL_MVM_TM_CMD_SET_NOA:
3585 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3586 !vif->bss_conf.enable_beacon ||
3587 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3588 return -EINVAL;
3589
3590 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3591 if (noa_duration >= vif->bss_conf.beacon_int)
3592 return -EINVAL;
3593
3594 mvm->noa_duration = noa_duration;
3595 mvm->noa_vif = vif;
3596
7754ae79 3597 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3598 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3599 /* must be associated client vif - ignore authorized */
3600 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3601 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3602 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3603 return -EINVAL;
3604
3605 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3606 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3607 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3608 }
3609
3610 return -EOPNOTSUPP;
3611}
3612
3613static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3614 struct ieee80211_vif *vif,
3615 void *data, int len)
3616{
3617 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3618 int err;
3619
3620 mutex_lock(&mvm->mutex);
3621 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3622 mutex_unlock(&mvm->mutex);
3623
3624 return err;
3625}
3626#endif
3627
622e3f9b
LC		 3628static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3629 struct ieee80211_vif *vif,
3630 struct ieee80211_channel_switch *chsw)
3631{
3632 /* By implementing this operation, we prevent mac80211 from
3633 * starting its own channel switch timer, so that we can call
3634 * ieee80211_chswitch_done() ourselves at the right time
3635 * (which is when the absence time event starts).
3636 */
3637
3638 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3639 "dummy channel switch op\n");
3640}
3641
f028905c
LC		 3642static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3643 struct ieee80211_vif *vif,
3644 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3645{
3646 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3647 struct ieee80211_vif *csa_vif;
f6c34820 3648 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3649 u32 apply_time;
f028905c 3650 int ret;
bd3398e2
AO		 3651
3652 mutex_lock(&mvm->mutex);
664322fa 3653
81d62d5a
JB		 3654 mvmvif->csa_failed = false;
3655
6b20d774 3656 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3657 chsw->chandef.center_freq1);
6b20d774 3658
21023b1e 3659 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3660
6b20d774
LC		 3661 switch (vif->type) {
3662 case NL80211_IFTYPE_AP:
3663 csa_vif =
3664 rcu_dereference_protected(mvm->csa_vif,
3665 lockdep_is_held(&mvm->mutex));
3666 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3667 "Another CSA is already in progress")) {
3668 ret = -EBUSY;
3669 goto out_unlock;
3670 }
3671
3672 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3673
7ef0aab6
AO		 3674 if (WARN_ONCE(mvmvif->csa_countdown,
3675 "Previous CSA countdown didn't complete")) {
3676 ret = -EBUSY;
3677 goto out_unlock;
3678 }
3679
6b20d774 3680 break;
dc88b4ba 3681 case NL80211_IFTYPE_STATION:
03098268
AE		 3682 if (mvmvif->lqm_active)
3683 iwl_mvm_send_lqm_cmd(vif,
3684 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3685 0, 0);
3686
4500e133
LC		 3687 /* Schedule the time event to a bit before beacon 1,
3688 * to make sure we're in the new channel when the
3689 * GO/AP arrives.
3690 */
3691 apply_time = chsw->device_timestamp +
3692 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3693 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3694
3695 if (chsw->block_tx)
3696 iwl_mvm_csa_client_absent(mvm, vif);
3697
4500e133 3698 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3699 apply_time);
c6e0a3e0
LC		 3700 if (mvmvif->bf_data.bf_enabled) {
3701 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3702 if (ret)
3703 goto out_unlock;
3704 }
3705
dc88b4ba 3706 break;
6b20d774
LC		 3707 default:
3708 break;
3709 }
bd3398e2 3710
f6c34820
LC		 3711 mvmvif->ps_disabled = true;
3712
3713 ret = iwl_mvm_power_update_ps(mvm);
3714 if (ret)
3715 goto out_unlock;
f028905c 3716
e198f5e7
AN		 3717 /* we won't be on this channel any longer */
3718 iwl_mvm_teardown_tdls_peers(mvm);
3719
bd3398e2
AO		 3720out_unlock:
3721 mutex_unlock(&mvm->mutex);
f028905c
LC		 3722
3723 return ret;
bd3398e2
AO		 3724}
3725
f6c34820
LC		 3726static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3727 struct ieee80211_vif *vif)
3728{
3729 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3730 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3731 int ret;
3732
3733 mutex_lock(&mvm->mutex);
3734
81d62d5a
JB		 3735 if (mvmvif->csa_failed) {
3736 mvmvif->csa_failed = false;
3737 ret = -EIO;
3738 goto out_unlock;
3739 }
3740
a57c688d
LC		 3741 if (vif->type == NL80211_IFTYPE_STATION) {
3742 struct iwl_mvm_sta *mvmsta;
3743
3744 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3745 mvmvif->ap_sta_id);
3746
3747 if (WARN_ON(!mvmsta)) {
3748 ret = -EIO;
3749 goto out_unlock;
3750 }
3751
3752 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3753
3754 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3755
3756 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3757 if (ret)
3758 goto out_unlock;
686e7fe1
LC		 3759
3760 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3761 }
3762
f6c34820
LC		 3763 mvmvif->ps_disabled = false;
3764
3765 ret = iwl_mvm_power_update_ps(mvm);
3766
a57c688d 3767out_unlock:
f6c34820
LC		 3768 mutex_unlock(&mvm->mutex);
3769
3770 return ret;
3771}
3772
c5b0e7c0
EG		 3773static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3774 struct ieee80211_vif *vif, u32 queues, bool drop)
3775{
3776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3777 struct iwl_mvm_vif *mvmvif;
3778 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3779 struct ieee80211_sta *sta;
3780 int i;
3781 u32 msk = 0;
c5b0e7c0
EG		 3782
3783 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3784 return;
3785
24afba76
LK		 3786 /* Make sure we're done with the deferred traffic before flushing */
3787 if (iwl_mvm_is_dqa_supported(mvm))
3788 flush_work(&mvm->add_stream_wk);
3789
c5b0e7c0
EG		 3790 mutex_lock(&mvm->mutex);
3791 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3792
a0f6bf2a
AN		 3793 /* flush the AP-station and all TDLS peers */
3794 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3795 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3796 lockdep_is_held(&mvm->mutex));
3797 if (IS_ERR_OR_NULL(sta))
3798 continue;
3799
3800 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3801 if (mvmsta->vif != vif)
3802 continue;
3803
3804 /* make sure only TDLS peers or the AP are flushed */
3805 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3806
3807 msk |= mvmsta->tfd_queue_msk;
480acbce 3808 }
c5b0e7c0 3809
6d440b25 3810 if (drop) {
5888a40c 3811 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3812 IWL_ERR(mvm, "flush request fail\n");
3813 mutex_unlock(&mvm->mutex);
3814 } else {
3815 mutex_unlock(&mvm->mutex);
4e6c48e0 3816
6d440b25
EG		 3817 /* this can take a while, and we may need/want other operations
3818 * to succeed while doing this, so do it without the mutex held
3819 */
3820 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3821 }
c5b0e7c0
EG		 3822}
3823
91a8bcde
JB		 3824static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3825 struct survey_info *survey)
3826{
3827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3828 int ret;
3829
3830 memset(survey, 0, sizeof(*survey));
3831
3832 /* only support global statistics right now */
3833 if (idx != 0)
3834 return -ENOENT;
3835
859d914c 3836 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3837 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3838 return -ENOENT;
3839
3840 mutex_lock(&mvm->mutex);
3841
3842 if (mvm->ucode_loaded) {
33cef925 3843 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3844 if (ret)
3845 goto out;
3846 }
3847
3848 survey->filled = SURVEY_INFO_TIME |
3849 SURVEY_INFO_TIME_RX |
3850 SURVEY_INFO_TIME_TX |
3851 SURVEY_INFO_TIME_SCAN;
3852 survey->time = mvm->accu_radio_stats.on_time_rf +
3853 mvm->radio_stats.on_time_rf;
3854 do_div(survey->time, USEC_PER_MSEC);
3855
3856 survey->time_rx = mvm->accu_radio_stats.rx_time +
3857 mvm->radio_stats.rx_time;
3858 do_div(survey->time_rx, USEC_PER_MSEC);
3859
3860 survey->time_tx = mvm->accu_radio_stats.tx_time +
3861 mvm->radio_stats.tx_time;
3862 do_div(survey->time_tx, USEC_PER_MSEC);
3863
3864 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3865 mvm->radio_stats.on_time_scan;
3866 do_div(survey->time_scan, USEC_PER_MSEC);
3867
10a7c028 3868 ret = 0;
91a8bcde
JB		 3869 out:
3870 mutex_unlock(&mvm->mutex);
3871 return ret;
3872}
3873
33cef925
JB		 3874static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3875 struct ieee80211_vif *vif,
3876 struct ieee80211_sta *sta,
3877 struct station_info *sinfo)
3878{
3879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3880 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3881 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3882
859d914c
JB		 3883 if (fw_has_capa(&mvm->fw->ucode_capa,
3884 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3885 return;
3886
3887 /* if beacon filtering isn't on mac80211 does it anyway */
3888 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3889 return;
3890
3891 if (!vif->bss_conf.assoc)
3892 return;
3893
3894 mutex_lock(&mvm->mutex);
3895
3896 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3897 goto unlock;
3898
3899 if (iwl_mvm_request_statistics(mvm, false))
3900 goto unlock;
3901
3902 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3903 mvmvif->beacon_stats.accu_num_beacons;
3904 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3905 if (mvmvif->beacon_stats.avg_signal) {
3906 /* firmware only reports a value after RXing a few beacons */
3907 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3908 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3909 }
3910 unlock:
3911 mutex_unlock(&mvm->mutex);
3912}
3913
4203263d
EG		 3914static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3915 struct ieee80211_vif *vif,
3916 const struct ieee80211_event *event)
d42f5350 3917{
5d4f929e 3918#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3919 do { \
3920 if ((_cnt) && --(_cnt)) \
3921 break; \
5d4f929e 3922 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3923 } while (0)
3924
d42f5350
EG		 3925 struct iwl_fw_dbg_trigger_tlv *trig;
3926 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3927
3928 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3929 return;
3930
d42f5350
EG		 3931 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3932 trig_mlme = (void *)trig->data;
3933 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3934 return;
3935
d42f5350
EG		 3936 if (event->u.mlme.data == ASSOC_EVENT) {
3937 if (event->u.mlme.status == MLME_DENIED)
3938 CHECK_MLME_TRIGGER(mvm, trig, buf,
3939 trig_mlme->stop_assoc_denied,
3940 "DENIED ASSOC: reason %d",
3941 event->u.mlme.reason);
3942 else if (event->u.mlme.status == MLME_TIMEOUT)
3943 CHECK_MLME_TRIGGER(mvm, trig, buf,
3944 trig_mlme->stop_assoc_timeout,
3945 "ASSOC TIMEOUT");
3946 } else if (event->u.mlme.data == AUTH_EVENT) {
3947 if (event->u.mlme.status == MLME_DENIED)
3948 CHECK_MLME_TRIGGER(mvm, trig, buf,
3949 trig_mlme->stop_auth_denied,
3950 "DENIED AUTH: reason %d",
3951 event->u.mlme.reason);
3952 else if (event->u.mlme.status == MLME_TIMEOUT)
3953 CHECK_MLME_TRIGGER(mvm, trig, buf,
3954 trig_mlme->stop_auth_timeout,
3955 "AUTH TIMEOUT");
3956 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3957 CHECK_MLME_TRIGGER(mvm, trig, buf,
3958 trig_mlme->stop_rx_deauth,
3959 "DEAUTH RX %d", event->u.mlme.reason);
3960 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3961 CHECK_MLME_TRIGGER(mvm, trig, buf,
3962 trig_mlme->stop_tx_deauth,
3963 "DEAUTH TX %d", event->u.mlme.reason);
3964 }
3965#undef CHECK_MLME_TRIGGER
3966}
3967
4203263d
EG		 3968static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
3969 struct ieee80211_vif *vif,
3970 const struct ieee80211_event *event)
3971{
3972 struct iwl_fw_dbg_trigger_tlv *trig;
3973 struct iwl_fw_dbg_trigger_ba *ba_trig;
3974
3975 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3976 return;
3977
3978 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3979 ba_trig = (void *)trig->data;
3980 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3981 return;
3982
3983 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
3984 return;
3985
3986 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3987 "BAR received from %pM, tid %d, ssn %d",
3988 event->u.ba.sta->addr, event->u.ba.tid,
3989 event->u.ba.ssn);
3990}
3991
3992static void
3993iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
3994 struct ieee80211_vif *vif,
3995 const struct ieee80211_event *event)
3996{
3997 struct iwl_fw_dbg_trigger_tlv *trig;
3998 struct iwl_fw_dbg_trigger_ba *ba_trig;
3999
4000 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4001 return;
4002
4003 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4004 ba_trig = (void *)trig->data;
4005 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4006 return;
4007
4008 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4009 return;
4010
4011 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4012 "Frame from %pM timed out, tid %d",
4013 event->u.ba.sta->addr, event->u.ba.tid);
4014}
4015
4016static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4017 struct ieee80211_vif *vif,
4018 const struct ieee80211_event *event)
4019{
4020 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4021
4022 switch (event->type) {
4023 case MLME_EVENT:
4024 iwl_mvm_event_mlme_callback(mvm, vif, event);
4025 break;
4026 case BAR_RX_EVENT:
4027 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4028 break;
4029 case BA_FRAME_TIMEOUT:
4030 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4031 break;
4032 default:
4033 break;
4034 }
4035}
4036
e5209263 4037const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4038 .tx = iwl_mvm_mac_tx,
4039 .ampdu_action = iwl_mvm_mac_ampdu_action,
4040 .start = iwl_mvm_mac_start,
cf2c92d8 4041 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4042 .stop = iwl_mvm_mac_stop,
4043 .add_interface = iwl_mvm_mac_add_interface,
4044 .remove_interface = iwl_mvm_mac_remove_interface,
4045 .config = iwl_mvm_mac_config,
e59647ea 4046 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4047 .configure_filter = iwl_mvm_configure_filter,
effd1929 4048 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4049 .bss_info_changed = iwl_mvm_bss_info_changed,
4050 .hw_scan = iwl_mvm_mac_hw_scan,
4051 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4052 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4053 .sta_state = iwl_mvm_mac_sta_state,
4054 .sta_notify = iwl_mvm_mac_sta_notify,
4055 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4056 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4057 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4058 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4059 .conf_tx = iwl_mvm_mac_conf_tx,
4060 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4061 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4062 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4063 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4064 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4065 .set_key = iwl_mvm_mac_set_key,
4066 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4067 .remain_on_channel = iwl_mvm_roc,
4068 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4069 .add_chanctx = iwl_mvm_add_chanctx,
4070 .remove_chanctx = iwl_mvm_remove_chanctx,
4071 .change_chanctx = iwl_mvm_change_chanctx,
4072 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4073 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4074 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4075
5023d966
JB		 4076 .start_ap = iwl_mvm_start_ap_ibss,
4077 .stop_ap = iwl_mvm_stop_ap_ibss,
4078 .join_ibss = iwl_mvm_start_ap_ibss,
4079 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4080
4081 .set_tim = iwl_mvm_set_tim,
4082
622e3f9b 4083 .channel_switch = iwl_mvm_channel_switch,
f028905c 4084 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4085 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4086
1d3c3f63
AN		 4087 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4088 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4089 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4090
d42f5350
EG		 4091 .event_callback = iwl_mvm_mac_event_callback,
4092
507cadf2
DS		 4093 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4094
8ca151b5
JB		 4095#ifdef CONFIG_PM_SLEEP
4096 /* look at d3.c */
4097 .suspend = iwl_mvm_suspend,
4098 .resume = iwl_mvm_resume,
4099 .set_wakeup = iwl_mvm_set_wakeup,
4100 .set_rekey_data = iwl_mvm_set_rekey_data,
4101#if IS_ENABLED(CONFIG_IPV6)
4102 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4103#endif
4104 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4105#endif
91a8bcde 4106 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4107 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4108};
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