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iwlwifi: mvm: add trigger for firmware dump upon MLME failures
[mirror_ubuntu-artful-kernel.git] / drivers / net / wireless / 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
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
83#include "fw-api-scan.h"
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"
363039be 88#include "iwl-csr.h"
88931cc9 89#include "iwl-nvm-parse.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",
322 PTR_RET(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",
8ba2d7a1
EH		 338 PTR_RET(regd));
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;
8ca151b5
JB		 419
420 /* Tell mac80211 our characteristics */
421 hw->flags = IEEE80211_HW_SIGNAL_DBM |
422 IEEE80211_HW_SPECTRUM_MGMT |
423 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
424 IEEE80211_HW_QUEUE_CONTROL |
425 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 426 IEEE80211_HW_SUPPORTS_PS |
427 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 428 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 429 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 430 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 431 IEEE80211_HW_CHANCTX_STA_CSA |
432 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 433
19e737c9 434 hw->queues = mvm->first_agg_queue;
398e8c6c 435 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 436 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
437 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 438 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
439 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 440 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 443
444 /*
445 * Enable 11w if advertised by firmware and software crypto
446 * is not enabled (as the firmware will interpret some mgmt
447 * packets, so enabling it with software crypto isn't safe)
448 */
449 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
450 !iwlwifi_mod_params.sw_crypto)
451 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
452
1f940386
LC		 453 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
454 hw->wiphy->features |=
455 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
456 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fb98be5e 457
8ca151b5
JB		 458 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
459 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 460 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 461
462 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 463 BIT(NL80211_IFTYPE_P2P_CLIENT) |
464 BIT(NL80211_IFTYPE_AP) |
465 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 466 BIT(NL80211_IFTYPE_P2P_DEVICE) |
467 BIT(NL80211_IFTYPE_ADHOC);
5023d966 468
a2f73b6c 469 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 470 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
471 if (iwl_mvm_is_lar_supported(mvm))
472 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
473 else
474 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
475 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 476
3e56eadf
JB		 477 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
478 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
479
94bbed72 480 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 481
8ca151b5
JB		 482 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
483 hw->wiphy->n_iface_combinations =
484 ARRAY_SIZE(iwl_mvm_iface_combinations);
485
c451e6d4 486 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 487 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 488 /* we can compensate an offset of up to 3 channels = 15 MHz */
489 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 490
491 /* Extract MAC address */
492 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
493 hw->wiphy->addresses = mvm->addresses;
494 hw->wiphy->n_addresses = 1;
831e85f3
IP		 495
496 /* Extract additional MAC addresses if available */
497 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
498 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
499
500 for (i = 1; i < num_mac; i++) {
501 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 502 ETH_ALEN);
831e85f3 503 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 504 hw->wiphy->n_addresses++;
505 }
506
fe0f2de3
IP		 507 iwl_mvm_reset_phy_ctxts(mvm);
508
48849a41 509 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 510
8ca151b5
JB		 511 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
512
513 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
514 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
515 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 516 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 517 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
518 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
519
c9faccc9
ES		 520 if ((mvm->fw->ucode_capa.capa[0] &
521 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
522 (mvm->fw->ucode_capa.api[0] &
523 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 524 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
525 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
526 }
527
8ca151b5
JB		 528 hw->wiphy->hw_version = mvm->trans->hw_id;
529
ade50652 530 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 531 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
532 else
533 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
534
6efaaf33
EG		 535 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
536 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
537 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
538 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
539 /* we create the 802.11 header and zero length SSID IE. */
540 hw->wiphy->max_sched_scan_ie_len =
541 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
542 }
35a000b7 543
8ca151b5 544 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 545 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 546 NL80211_FEATURE_P2P_GO_OPPPS |
547 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 548 NL80211_FEATURE_STATIC_SMPS |
549 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 550
f1daa00e
AO		 551 if (mvm->fw->ucode_capa.capa[0] &
552 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
553 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 554 if (mvm->fw->ucode_capa.capa[0] &
555 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
556 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 557
73897bd1
AO		 558 if (mvm->fw->ucode_capa.capa[0] &
559 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
560 hw->wiphy->features |=
561 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
562
563 if (mvm->fw->ucode_capa.capa[0] &
564 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
565 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
566
8ca151b5
JB		 567 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
568
e36e5433 569 /* currently FW API supports only one optional cipher scheme */
9ddca860 570 if (mvm->fw->cs[0].cipher) {
e36e5433 571 mvm->hw->n_cipher_schemes = 1;
9ddca860 572 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 573 }
574
8ca151b5 575#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 576 if (iwl_mvm_is_d0i3_supported(mvm) &&
577 device_can_wakeup(mvm->trans->dev)) {
578 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
579 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 580 }
581
582 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 583 mvm->trans->ops->d3_suspend &&
584 mvm->trans->ops->d3_resume &&
585 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 586 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
587 WIPHY_WOWLAN_DISCONNECT |
588 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
589 WIPHY_WOWLAN_RFKILL_RELEASE |
590 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 591 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 592 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
593 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
594 WIPHY_WOWLAN_4WAY_HANDSHAKE;
595
596 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
597 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
598 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 599 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 600 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
601 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 602 }
603#endif
604
77736923
EP		 605#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
606 /* assign default bcast filtering configuration */
607 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
608#endif
609
8ca151b5
JB		 610 ret = iwl_mvm_leds_init(mvm);
611 if (ret)
612 return ret;
613
d8f1c515
AN		 614 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
615 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
616 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
617 }
618
1d3c3f63
AN		 619 if (mvm->fw->ucode_capa.capa[0] &
620 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
621 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
622 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
623 }
624
b7327d89
EG		 625 ret = ieee80211_register_hw(mvm->hw);
626 if (ret)
627 iwl_mvm_leds_exit(mvm);
628
629 return ret;
8ca151b5
JB		 630}
631
b2492501
AN		 632static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
633 struct ieee80211_sta *sta,
634 struct sk_buff *skb)
635{
636 struct iwl_mvm_sta *mvmsta;
637 bool defer = false;
638
639 /*
640 * double check the IN_D0I3 flag both before and after
641 * taking the spinlock, in order to prevent taking
642 * the spinlock when not needed.
643 */
644 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
645 return false;
646
647 spin_lock(&mvm->d0i3_tx_lock);
648 /*
649 * testing the flag again ensures the skb dequeue
650 * loop (on d0i3 exit) hasn't run yet.
651 */
652 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
653 goto out;
654
655 mvmsta = iwl_mvm_sta_from_mac80211(sta);
656 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
657 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
658 goto out;
659
660 __skb_queue_tail(&mvm->d0i3_tx, skb);
661 ieee80211_stop_queues(mvm->hw);
662
663 /* trigger wakeup */
664 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
665 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
666
667 defer = true;
668out:
669 spin_unlock(&mvm->d0i3_tx_lock);
670 return defer;
671}
672
8ca151b5
JB		 673static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
674 struct ieee80211_tx_control *control,
675 struct sk_buff *skb)
676{
677 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 678 struct ieee80211_sta *sta = control->sta;
679 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
680 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 681
9ee718aa
EL		 682 if (iwl_mvm_is_radio_killed(mvm)) {
683 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 684 goto drop;
685 }
686
398e8c6c 687 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 688 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
689 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 690 goto drop;
691
3e56eadf
JB		 692 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
693 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
694 ieee80211_is_mgmt(hdr->frame_control) &&
695 !ieee80211_is_deauth(hdr->frame_control) &&
696 !ieee80211_is_disassoc(hdr->frame_control) &&
697 !ieee80211_is_action(hdr->frame_control)))
698 sta = NULL;
699
700 if (sta) {
b2492501
AN		 701 if (iwl_mvm_defer_tx(mvm, sta, skb))
702 return;
3e56eadf 703 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 704 goto drop;
705 return;
706 }
707
708 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
709 goto drop;
710 return;
711 drop:
712 ieee80211_free_txskb(hw, skb);
713}
714
205e2210
EG		 715static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
716{
717 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
718 return false;
719 return true;
720}
721
722static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
723{
724 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
725 return false;
726 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
727 return true;
728
729 /* enabled by default */
730 return true;
731}
732
8ca151b5
JB		 733static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
734 struct ieee80211_vif *vif,
735 enum ieee80211_ampdu_mlme_action action,
736 struct ieee80211_sta *sta, u16 tid,
737 u16 *ssn, u8 buf_size)
738{
739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
740 int ret;
b2492501 741 bool tx_agg_ref = false;
8ca151b5
JB		 742
743 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
744 sta->addr, tid, action);
745
746 if (!(mvm->nvm_data->sku_cap_11n_enable))
747 return -EACCES;
748
b2492501 749 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 750 switch (action) {
751 case IEEE80211_AMPDU_TX_START:
752 case IEEE80211_AMPDU_TX_STOP_CONT:
753 case IEEE80211_AMPDU_TX_STOP_FLUSH:
754 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
755 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 756 /*
9256c205
EP		 757 * for tx start, wait synchronously until D0i3 exit to
758 * get the correct sequence number for the tid.
759 * additionally, some other ampdu actions use direct
760 * target access, which is not handled automatically
761 * by the trans layer (unlike commands), so wait for
762 * d0i3 exit in these cases as well.
b2492501 763 */
d40fc489
GG		 764 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
765 if (ret)
766 return ret;
767
768 tx_agg_ref = true;
9256c205
EP		 769 break;
770 default:
771 break;
b2492501
AN		 772 }
773
8ca151b5
JB		 774 mutex_lock(&mvm->mutex);
775
776 switch (action) {
777 case IEEE80211_AMPDU_RX_START:
205e2210 778 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 779 ret = -EINVAL;
780 break;
781 }
782 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
783 break;
784 case IEEE80211_AMPDU_RX_STOP:
785 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
786 break;
787 case IEEE80211_AMPDU_TX_START:
205e2210 788 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 789 ret = -EINVAL;
790 break;
791 }
8ca151b5
JB		 792 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
793 break;
794 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 795 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
796 break;
8ca151b5
JB		 797 case IEEE80211_AMPDU_TX_STOP_FLUSH:
798 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 799 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 800 break;
801 case IEEE80211_AMPDU_TX_OPERATIONAL:
802 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
803 break;
804 default:
805 WARN_ON_ONCE(1);
806 ret = -EINVAL;
807 break;
808 }
809 mutex_unlock(&mvm->mutex);
810
b2492501
AN		 811 /*
812 * If the tid is marked as started, we won't use it for offloaded
813 * traffic on the next D0i3 entry. It's safe to unref.
814 */
815 if (tx_agg_ref)
816 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
817
8ca151b5
JB		 818 return ret;
819}
820
821static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
822 struct ieee80211_vif *vif)
823{
824 struct iwl_mvm *mvm = data;
825 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
826
827 mvmvif->uploaded = false;
828 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
829
8ca151b5
JB		 830 spin_lock_bh(&mvm->time_event_lock);
831 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
832 spin_unlock_bh(&mvm->time_event_lock);
833
fe0f2de3 834 mvmvif->phy_ctxt = NULL;
8a275bad 835 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 836}
837
aadede6e
JB		 838static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
839 const void *data, size_t datalen)
840{
841 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
842 ssize_t bytes_read;
843 ssize_t bytes_read_trans;
844
845 if (offset < dump_ptrs->op_mode_len) {
846 bytes_read = min_t(ssize_t, count,
847 dump_ptrs->op_mode_len - offset);
848 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
849 bytes_read);
850 offset += bytes_read;
851 count -= bytes_read;
852
853 if (count == 0)
854 return bytes_read;
855 } else {
856 bytes_read = 0;
857 }
858
859 if (!dump_ptrs->trans_ptr)
860 return bytes_read;
861
862 offset -= dump_ptrs->op_mode_len;
863 bytes_read_trans = min_t(ssize_t, count,
864 dump_ptrs->trans_ptr->len - offset);
865 memcpy(buffer + bytes_read,
866 (u8 *)dump_ptrs->trans_ptr->data + offset,
867 bytes_read_trans);
868
869 return bytes_read + bytes_read_trans;
870}
871
872static void iwl_mvm_free_coredump(const void *data)
873{
874 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
875
876 vfree(fw_error_dump->op_mode_ptr);
877 vfree(fw_error_dump->trans_ptr);
878 kfree(fw_error_dump);
879}
880
04fd2c28
LK		 881static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
882 struct iwl_fw_error_dump_data **dump_data)
883{
884 struct iwl_fw_error_dump_fifo *fifo_hdr;
885 u32 *fifo_data;
886 u32 fifo_len;
887 unsigned long flags;
888 int i, j;
889
890 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
891 return;
892
893 /* Pull RXF data from all RXFs */
894 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
895 /*
896 * Keep aside the additional offset that might be needed for
897 * next RXF
898 */
899 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
900
901 fifo_hdr = (void *)(*dump_data)->data;
902 fifo_data = (void *)fifo_hdr->data;
903 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
904
905 /* No need to try to read the data if the length is 0 */
906 if (fifo_len == 0)
907 continue;
908
909 /* Add a TLV for the RXF */
910 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
911 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
912
913 fifo_hdr->fifo_num = cpu_to_le32(i);
914 fifo_hdr->available_bytes =
915 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
916 RXF_RD_D_SPACE +
917 offset_diff));
918 fifo_hdr->wr_ptr =
919 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
920 RXF_RD_WR_PTR +
921 offset_diff));
922 fifo_hdr->rd_ptr =
923 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
924 RXF_RD_RD_PTR +
925 offset_diff));
926 fifo_hdr->fence_ptr =
927 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
928 RXF_RD_FENCE_PTR +
929 offset_diff));
930 fifo_hdr->fence_mode =
931 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
932 RXF_SET_FENCE_MODE +
933 offset_diff));
934
935 /* Lock fence */
936 iwl_trans_write_prph(mvm->trans,
937 RXF_SET_FENCE_MODE + offset_diff, 0x1);
938 /* Set fence pointer to the same place like WR pointer */
939 iwl_trans_write_prph(mvm->trans,
940 RXF_LD_WR2FENCE + offset_diff, 0x1);
941 /* Set fence offset */
942 iwl_trans_write_prph(mvm->trans,
943 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
944 0x0);
945
946 /* Read FIFO */
947 fifo_len /= sizeof(u32); /* Size in DWORDS */
948 for (j = 0; j < fifo_len; j++)
949 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
950 RXF_FIFO_RD_FENCE_INC +
951 offset_diff);
952 *dump_data = iwl_fw_error_next_data(*dump_data);
953 }
954
955 /* Pull TXF data from all TXFs */
956 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
957 /* Mark the number of TXF we're pulling now */
958 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
959
960 fifo_hdr = (void *)(*dump_data)->data;
961 fifo_data = (void *)fifo_hdr->data;
962 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
963
964 /* No need to try to read the data if the length is 0 */
965 if (fifo_len == 0)
966 continue;
967
968 /* Add a TLV for the FIFO */
969 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
970 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
971
972 fifo_hdr->fifo_num = cpu_to_le32(i);
973 fifo_hdr->available_bytes =
974 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
975 TXF_FIFO_ITEM_CNT));
976 fifo_hdr->wr_ptr =
977 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
978 TXF_WR_PTR));
979 fifo_hdr->rd_ptr =
980 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
981 TXF_RD_PTR));
982 fifo_hdr->fence_ptr =
983 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
984 TXF_FENCE_PTR));
985 fifo_hdr->fence_mode =
986 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
987 TXF_LOCK_FENCE));
988
989 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
990 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
991 TXF_WR_PTR);
992
993 /* Dummy-read to advance the read pointer to the head */
994 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
995
996 /* Read FIFO */
997 fifo_len /= sizeof(u32); /* Size in DWORDS */
998 for (j = 0; j < fifo_len; j++)
999 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1000 TXF_READ_MODIFY_DATA);
1001 *dump_data = iwl_fw_error_next_data(*dump_data);
1002 }
1003
1004 iwl_trans_release_nic_access(mvm->trans, &flags);
1005}
1006
b6eaa45a
EG		 1007void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1008{
1009 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1010 !mvm->fw_dump_desc)
1011 return;
1012
1013 kfree(mvm->fw_dump_desc);
1014 mvm->fw_dump_desc = NULL;
1015}
1016
e539761d
LK		 1017#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1018#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1019
4bfa47f3 1020void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1021{
1022 struct iwl_fw_error_dump_file *dump_file;
1023 struct iwl_fw_error_dump_data *dump_data;
1024 struct iwl_fw_error_dump_info *dump_info;
a549b296 1025 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1026 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1027 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1028 u32 sram_len, sram_ofs;
04fd2c28 1029 u32 file_len, fifo_data_len = 0;
addfaada 1030 u32 smem_len = mvm->cfg->smem_len;
86138324 1031 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1032
1033 lockdep_assert_held(&mvm->mutex);
1034
aadede6e 1035 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1036 if (!fw_error_dump)
1037 return;
1038
f53bf4c7
LK		 1039 /* SRAM - include stack CCM if driver knows the values for it */
1040 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1041 const struct fw_img *img;
1042
1043 img = &mvm->fw->img[mvm->cur_ucode];
1044 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1045 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1046 } else {
1047 sram_ofs = mvm->cfg->dccm_offset;
1048 sram_len = mvm->cfg->dccm_len;
1049 }
655e6d6d 1050
04fd2c28
LK		 1051 /* reading RXF/TXF sizes */
1052 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1053 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1054 int i;
1055
1056 fifo_data_len = 0;
1057
1058 /* Count RXF size */
1059 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1060 if (!mem_cfg->rxfifo_size[i])
1061 continue;
1062
1063 /* Add header info */
1064 fifo_data_len += mem_cfg->rxfifo_size[i] +
1065 sizeof(*dump_data) +
1066 sizeof(struct iwl_fw_error_dump_fifo);
1067 }
1068
1069 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1070 if (!mem_cfg->txfifo_size[i])
1071 continue;
655e6d6d 1072
04fd2c28
LK		 1073 /* Add header info */
1074 fifo_data_len += mem_cfg->txfifo_size[i] +
1075 sizeof(*dump_data) +
1076 sizeof(struct iwl_fw_error_dump_fifo);
1077 }
1078 }
655e6d6d
EG		 1079
1080 file_len = sizeof(*dump_file) +
04fd2c28 1081 sizeof(*dump_data) * 2 +
a549b296 1082 sram_len + sizeof(*dump_mem) +
04fd2c28 1083 fifo_data_len +
655e6d6d
EG		 1084 sizeof(*dump_info);
1085
e539761d
LK		 1086 /*
1087 * In 8000 HW family B-step include the ICCM (which resides separately)
1088 */
1089 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1090 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1091 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1092 IWL8260_ICCM_LEN;
1093
b6eaa45a
EG		 1094 if (mvm->fw_dump_desc)
1095 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1096 mvm->fw_dump_desc->len;
1097
addfaada
LK		 1098 /* Make room for the SMEM, if it exists */
1099 if (smem_len)
a549b296 1100 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1101
86138324
IY		 1102 /* Make room for the secondary SRAM, if it exists */
1103 if (sram2_len)
1104 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1105
5bfe6f53 1106 dump_file = vzalloc(file_len);
48eb7b34
EG		 1107 if (!dump_file) {
1108 kfree(fw_error_dump);
b6eaa45a 1109 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1110 return;
48eb7b34 1111 }
655e6d6d 1112
48eb7b34 1113 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1114
1115 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1116 dump_data = (void *)dump_file->data;
1117
1118 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1119 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1120 dump_info = (void *) dump_data->data;
1121 dump_info->device_family =
1122 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1123 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1124 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1125 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1126 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1127 sizeof(dump_info->fw_human_readable));
1128 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1129 sizeof(dump_info->dev_human_readable));
1130 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1131 sizeof(dump_info->bus_human_readable));
1132
1133 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1134 /* We only dump the FIFOs if the FW is in error state */
1135 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1136 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1137
b6eaa45a
EG		 1138 if (mvm->fw_dump_desc) {
1139 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1140 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1141 mvm->fw_dump_desc->len);
1142 dump_trig = (void *)dump_data->data;
1143 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1144 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1145
1146 /* now we can free this copy */
1147 iwl_mvm_free_fw_dump_desc(mvm);
1148 dump_data = iwl_fw_error_next_data(dump_data);
1149 }
1150
a549b296
EG		 1151 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1152 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1153 dump_mem = (void *)dump_data->data;
1154 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1155 dump_mem->offset = cpu_to_le32(sram_ofs);
1156 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1157 sram_len);
1158
addfaada
LK		 1159 if (smem_len) {
1160 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1161 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1162 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1163 dump_mem = (void *)dump_data->data;
1164 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1165 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1166 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1167 dump_mem->data, smem_len);
addfaada
LK		 1168 }
1169
86138324
IY		 1170 if (sram2_len) {
1171 dump_data = iwl_fw_error_next_data(dump_data);
1172 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1173 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1174 dump_mem = (void *)dump_data->data;
1175 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1176 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1177 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1178 dump_mem->data, sram2_len);
1179 }
1180
e539761d
LK		 1181 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1182 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1183 dump_data = iwl_fw_error_next_data(dump_data);
1184 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1185 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1186 sizeof(*dump_mem));
1187 dump_mem = (void *)dump_data->data;
1188 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1189 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1190 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1191 dump_mem->data, IWL8260_ICCM_LEN);
1192 }
1193
48eb7b34
EG		 1194 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1195 fw_error_dump->op_mode_len = file_len;
1196 if (fw_error_dump->trans_ptr)
1197 file_len += fw_error_dump->trans_ptr->len;
1198 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1199
aadede6e
JB		 1200 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1201 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1202
1203 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1204}
655e6d6d 1205
b6eaa45a
EG		 1206struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1207 .trig_desc = {
1208 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1209 },
1210};
1211
8ca151b5
JB		 1212static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1213{
58629d9d
JB		 1214 /* clear the D3 reconfig, we only need it to avoid dumping a
1215 * firmware coredump on reconfiguration, we shouldn't do that
1216 * on D3->D0 transition
1217 */
b6eaa45a
EG		 1218 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1219 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1220 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1221 }
1bd3cbc1 1222
744cb695
EP		 1223 /* cleanup all stale references (scan, roc), but keep the
1224 * ucode_down ref until reconfig is complete
1225 */
1226 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1227
8ca151b5 1228 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1229
1230 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 1231 mvm->ps_disabled = false;
31b8b343 1232 mvm->calibrating = false;
8ca151b5
JB		 1233
1234 /* just in case one was running */
1235 ieee80211_remain_on_channel_expired(mvm->hw);
1236
1237 ieee80211_iterate_active_interfaces_atomic(
1238 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1239 iwl_mvm_cleanup_iterator, mvm);
1240
fe0f2de3 1241 mvm->p2p_device_vif = NULL;
37577fe2 1242 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1243
1244 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 1245 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1246 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1247 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1248 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1249 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1250 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1251 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1252 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1253 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1254
1255 ieee80211_wake_queues(mvm->hw);
1256
228670b2
EP		 1257 /* clear any stale d0i3 state */
1258 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1259
8ca151b5 1260 mvm->vif_count = 0;
113a0447 1261 mvm->rx_ba_sessions = 0;
d2709ad7 1262 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1263
1264 /* keep statistics ticking */
1265 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1266}
1267
a0a09243 1268int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1269{
8ca151b5
JB		 1270 int ret;
1271
a0a09243 1272 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1273
1274 /* Clean up some internal and mac80211 state on restart */
1275 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1276 iwl_mvm_restart_cleanup(mvm);
1277
1278 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1279
1280 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1281 /* Something went wrong - we need to finish some cleanup
1282 * that normally iwl_mvm_mac_restart_complete() below
1283 * would do.
1284 */
1285 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1286 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1287 }
1288
a0a09243
LC		 1289 return ret;
1290}
1291
1292static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1293{
1294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1295 int ret;
1296
37948fcf
EP		 1297 /* Some hw restart cleanups must not hold the mutex */
1298 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1299 /*
1300 * Make sure we are out of d0i3. This is needed
1301 * to make sure the reference accounting is correct
1302 * (and there is no stale d0i3_exit_work).
1303 */
1304 wait_event_timeout(mvm->d0i3_exit_waitq,
1305 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1306 &mvm->status),
1307 HZ);
1308 }
1309
a0a09243
LC		 1310 mutex_lock(&mvm->mutex);
1311 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1312 mutex_unlock(&mvm->mutex);
1313
1314 return ret;
1315}
1316
cf2c92d8 1317static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1318{
8ca151b5
JB		 1319 int ret;
1320
1321 mutex_lock(&mvm->mutex);
1322
1323 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1324 iwl_mvm_d0i3_enable_tx(mvm, NULL);
7754ae79 1325 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1326 if (ret)
1327 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1328 ret);
1329
7498cf4c
EP		 1330 /* allow transport/FW low power modes */
1331 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1332
cbd2ae2d
AN		 1333 /*
1334 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1335 * of packets the FW sent out, so we must reconnect.
1336 */
1337 iwl_mvm_teardown_tdls_peers(mvm);
1338
8ca151b5
JB		 1339 mutex_unlock(&mvm->mutex);
1340}
1341
088070a2
EP		 1342static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1343{
1344 bool exit_now;
1345
1346 if (!iwl_mvm_is_d0i3_supported(mvm))
1347 return;
1348
1349 mutex_lock(&mvm->d0i3_suspend_mutex);
1350 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1351 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1352 &mvm->d0i3_suspend_flags);
1353 mutex_unlock(&mvm->d0i3_suspend_mutex);
1354
1355 if (exit_now) {
1356 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1357 _iwl_mvm_exit_d0i3(mvm);
1358 }
6735943f
EP		 1359
1360 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1361 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1362 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1363 &mvm->status),
1364 HZ))
1365 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1366}
1367
cf2c92d8
EP		 1368static void
1369iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1370 enum ieee80211_reconfig_type reconfig_type)
1371{
1372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1373
1374 switch (reconfig_type) {
1375 case IEEE80211_RECONFIG_TYPE_RESTART:
1376 iwl_mvm_restart_complete(mvm);
1377 break;
1378 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1379 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1380 break;
1381 }
1382}
1383
a0a09243 1384void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1385{
a0a09243 1386 lockdep_assert_held(&mvm->mutex);
7498cf4c 1387
91a8bcde
JB		 1388 /* firmware counters are obviously reset now, but we shouldn't
1389 * partially track so also clear the fw_reset_accu counters.
1390 */
1391 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1392
0a79a0c0
EP		 1393 /*
1394 * Disallow low power states when the FW is down by taking
1395 * the UCODE_DOWN ref. in case of ongoing hw restart the
1396 * ref is already taken, so don't take it again.
1397 */
1398 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1399 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1400
8ca151b5
JB		 1401 /* async_handlers_wk is now blocked */
1402
1403 /*
1404 * The work item could be running or queued if the
1405 * ROC time event stops just as we get here.
1406 */
1407 cancel_work_sync(&mvm->roc_done_wk);
1408
1409 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1410
1411 iwl_mvm_async_handlers_purge(mvm);
1412 /* async_handlers_list is empty and will stay empty: HW is stopped */
1413
1414 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1415 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1416
0a79a0c0
EP		 1417 /*
1418 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1419 * won't be called in this case).
1420 */
1421 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1422
963221be
AB		 1423 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1424 * make sure there's nothing left there and warn if any is found.
1425 */
1426 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
1427 int i;
1428
1429 for (i = 0; i < IWL_MVM_MAX_SIMULTANEOUS_SCANS; i++) {
1430 if (WARN_ONCE(mvm->scan_uid[i],
1431 "UMAC scan UID %d was not cleaned\n",
1432 mvm->scan_uid[i]))
1433 mvm->scan_uid[i] = 0;
1434 }
1435 }
1436
bc44886d 1437 mvm->ucode_loaded = false;
a0a09243 1438}
bc44886d 1439
a0a09243
LC		 1440static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1441{
1442 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1443
1444 flush_work(&mvm->d0i3_exit_work);
1445 flush_work(&mvm->async_handlers_wk);
d2709ad7 1446 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1447 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1448
1449 mutex_lock(&mvm->mutex);
1450 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1451 mutex_unlock(&mvm->mutex);
1452
1453 /*
1454 * The worker might have been waiting for the mutex, let it run and
1455 * discover that its list is now empty.
1456 */
1457 cancel_work_sync(&mvm->async_handlers_wk);
1458}
1459
fe0f2de3
IP		 1460static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1461{
1462 u16 i;
1463
1464 lockdep_assert_held(&mvm->mutex);
1465
1466 for (i = 0; i < NUM_PHY_CTX; i++)
1467 if (!mvm->phy_ctxts[i].ref)
1468 return &mvm->phy_ctxts[i];
1469
1470 IWL_ERR(mvm, "No available PHY context\n");
1471 return NULL;
1472}
1473
ee9c6cb0
EG		 1474static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1475 s8 tx_power)
1476{
1477 /* FW is in charge of regulatory enforcement */
1478 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1479 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1480 .pwr_restriction = cpu_to_le16(tx_power),
1481 };
1482
a1022927 1483 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1484 sizeof(reduce_txpwr_cmd),
1485 &reduce_txpwr_cmd);
1486}
1487
8ca151b5
JB		 1488static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1489 struct ieee80211_vif *vif)
1490{
1491 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1492 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1493 int ret;
1494
aa5e1832
EG		 1495 mvmvif->mvm = mvm;
1496
d40fc489
GG		 1497 /*
1498 * make sure D0i3 exit is completed, otherwise a target access
1499 * during tx queue configuration could be done when still in
1500 * D0i3 state.
1501 */
1502 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1503 if (ret)
1504 return ret;
1505
8ca151b5
JB		 1506 /*
1507 * Not much to do here. The stack will not allow interface
1508 * types or combinations that we didn't advertise, so we
1509 * don't really have to check the types.
1510 */
1511
1512 mutex_lock(&mvm->mutex);
1513
33cef925
JB		 1514 /* make sure that beacon statistics don't go backwards with FW reset */
1515 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1516 mvmvif->beacon_stats.accu_num_beacons +=
1517 mvmvif->beacon_stats.num_beacons;
1518
e89044d7 1519 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1520 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1521 if (ret)
1522 goto out_unlock;
1523
1c2abf72 1524 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1525 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1526 mvm->vif_count++;
ea183d02 1527
8ca151b5
JB		 1528 /*
1529 * The AP binding flow can be done only after the beacon
1530 * template is configured (which happens only in the mac80211
1531 * start_ap() flow), and adding the broadcast station can happen
1532 * only after the binding.
1533 * In addition, since modifying the MAC before adding a bcast
1534 * station is not allowed by the FW, delay the adding of MAC context to
1535 * the point where we can also add the bcast station.
1536 * In short: there's not much we can do at this point, other than
1537 * allocating resources :)
1538 */
5023d966
JB		 1539 if (vif->type == NL80211_IFTYPE_AP ||
1540 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1541 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1542 if (ret) {
1543 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1544 goto out_release;
1545 }
1546
77740cb4 1547 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1548 goto out_unlock;
1549 }
1550
8ca151b5
JB		 1551 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1552 if (ret)
1553 goto out_release;
1554
999609f1 1555 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1556 if (ret)
fd66fc1c 1557 goto out_remove_mac;
8ca151b5 1558
7df15b1e 1559 /* beacon filtering */
a1022927 1560 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1561 if (ret)
1562 goto out_remove_mac;
1563
7df15b1e 1564 if (!mvm->bf_allowed_vif &&
73e5f2c5 1565 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1566 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1567 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1568 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1569 }
1570
8ca151b5
JB		 1571 /*
1572 * P2P_DEVICE interface does not have a channel context assigned to it,
1573 * so a dedicated PHY context is allocated to it and the corresponding
1574 * MAC context is bound to it at this stage.
1575 */
1576 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1577
fe0f2de3
IP		 1578 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1579 if (!mvmvif->phy_ctxt) {
1580 ret = -ENOSPC;
bd3351ba 1581 goto out_free_bf;
fe0f2de3 1582 }
8ca151b5 1583
53a9d61e 1584 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1585 ret = iwl_mvm_binding_add_vif(mvm, vif);
1586 if (ret)
53a9d61e 1587 goto out_unref_phy;
8ca151b5 1588
013290aa 1589 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1590 if (ret)
1591 goto out_unbind;
1592
1593 /* Save a pointer to p2p device vif, so it can later be used to
1594 * update the p2p device MAC when a GO is started/stopped */
1595 mvm->p2p_device_vif = vif;
1596 }
1597
63494374 1598 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1599 goto out_unlock;
1600
1601 out_unbind:
1602 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1603 out_unref_phy:
fe0f2de3 1604 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1605 out_free_bf:
1606 if (mvm->bf_allowed_vif == mvmvif) {
1607 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1608 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1609 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1610 }
8ca151b5
JB		 1611 out_remove_mac:
1612 mvmvif->phy_ctxt = NULL;
1613 iwl_mvm_mac_ctxt_remove(mvm, vif);
1614 out_release:
5ee2b215
AB		 1615 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1616 mvm->vif_count--;
1c2abf72 1617
8ca151b5
JB		 1618 iwl_mvm_mac_ctxt_release(mvm, vif);
1619 out_unlock:
1620 mutex_unlock(&mvm->mutex);
1621
d40fc489
GG		 1622 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1623
8ca151b5
JB		 1624 return ret;
1625}
1626
38a12b5b
JB		 1627static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1628 struct ieee80211_vif *vif)
8ca151b5 1629{
d92b732e 1630 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1631
1632 if (tfd_msk) {
fe92e32a
EG		 1633 /*
1634 * mac80211 first removes all the stations of the vif and
1635 * then removes the vif. When it removes a station it also
1636 * flushes the AMPDU session. So by now, all the AMPDU sessions
1637 * of all the stations of this vif are closed, and the queues
1638 * of these AMPDU sessions are properly closed.
1639 * We still need to take care of the shared queues of the vif.
1640 * Flush them here.
1641 */
8ca151b5
JB		 1642 mutex_lock(&mvm->mutex);
1643 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1644 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1645
1646 /*
1647 * There are transports that buffer a few frames in the host.
1648 * For these, the flush above isn't enough since while we were
1649 * flushing, the transport might have sent more frames to the
1650 * device. To solve this, wait here until the transport is
1651 * empty. Technically, this could have replaced the flush
1652 * above, but flush is much faster than draining. So flush
1653 * first, and drain to make sure we have no frames in the
1654 * transport anymore.
1655 * If a station still had frames on the shared queues, it is
1656 * already marked as draining, so to complete the draining, we
1657 * just need to wait until the transport is empty.
1658 */
1659 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1660 }
1661
1662 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1663 /*
1664 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1665 * We assume here that all the packets sent to the OFFCHANNEL
1666 * queue are sent in ROC session.
1667 */
1668 flush_work(&mvm->roc_done_wk);
1669 } else {
1670 /*
1671 * By now, all the AC queues are empty. The AGG queues are
1672 * empty too. We already got all the Tx responses for all the
1673 * packets in the queues. The drain work can have been
0742a75a 1674 * triggered. Flush it.
8ca151b5
JB		 1675 */
1676 flush_work(&mvm->sta_drained_wk);
1677 }
38a12b5b
JB		 1678}
1679
1680static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1681 struct ieee80211_vif *vif)
1682{
1683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1684 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1685
1686 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1687
1688 mutex_lock(&mvm->mutex);
1689
7df15b1e
HG		 1690 if (mvm->bf_allowed_vif == mvmvif) {
1691 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1692 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1693 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1694 }
1695
63494374
JB		 1696 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1697
8ca151b5
JB		 1698 /*
1699 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1700 * interface is be handled as part of the stop_ap flow.
8ca151b5 1701 */
5023d966
JB		 1702 if (vif->type == NL80211_IFTYPE_AP ||
1703 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1704#ifdef CONFIG_NL80211_TESTMODE
1705 if (vif == mvm->noa_vif) {
1706 mvm->noa_vif = NULL;
1707 mvm->noa_duration = 0;
1708 }
1709#endif
013290aa 1710 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1711 goto out_release;
1712 }
1713
1714 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1715 mvm->p2p_device_vif = NULL;
013290aa 1716 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1717 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1718 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1719 mvmvif->phy_ctxt = NULL;
1720 }
1721
5ee2b215 1722 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1723 mvm->vif_count--;
1c2abf72 1724
999609f1 1725 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1726 iwl_mvm_mac_ctxt_remove(mvm, vif);
1727
1728out_release:
1729 iwl_mvm_mac_ctxt_release(mvm, vif);
1730 mutex_unlock(&mvm->mutex);
1731}
1732
1733static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1734{
8ca151b5
JB		 1735 return 0;
1736}
1737
e59647ea
EP		 1738struct iwl_mvm_mc_iter_data {
1739 struct iwl_mvm *mvm;
1740 int port_id;
1741};
1742
1743static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1744 struct ieee80211_vif *vif)
1745{
1746 struct iwl_mvm_mc_iter_data *data = _data;
1747 struct iwl_mvm *mvm = data->mvm;
1748 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1749 int ret, len;
1750
1751 /* if we don't have free ports, mcast frames will be dropped */
1752 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1753 return;
1754
1755 if (vif->type != NL80211_IFTYPE_STATION ||
1756 !vif->bss_conf.assoc)
1757 return;
1758
1759 cmd->port_id = data->port_id++;
1760 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1761 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1762
1c4abec0 1763 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1764 if (ret)
1765 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1766}
1767
1768static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1769{
1770 struct iwl_mvm_mc_iter_data iter_data = {
1771 .mvm = mvm,
88f2fd73
MG		 1772 };
1773
e59647ea
EP		 1774 lockdep_assert_held(&mvm->mutex);
1775
1776 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1777 return;
1778
1c4abec0 1779 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1780 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1781 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1782}
1783
e59647ea
EP		 1784static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1785 struct netdev_hw_addr_list *mc_list)
8ca151b5 1786{
e59647ea
EP		 1787 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1788 struct iwl_mcast_filter_cmd *cmd;
1789 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1790 int addr_count;
1791 bool pass_all;
e59647ea
EP		 1792 int len;
1793
f3bd58f4
MS		 1794 addr_count = netdev_hw_addr_list_count(mc_list);
1795 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1796 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1797 if (pass_all)
e59647ea 1798 addr_count = 0;
e59647ea
EP		 1799
1800 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1801 cmd = kzalloc(len, GFP_ATOMIC);
1802 if (!cmd)
1803 return 0;
1804
1805 if (pass_all) {
1806 cmd->pass_all = 1;
1807 return (u64)(unsigned long)cmd;
1808 }
1809
1810 netdev_hw_addr_list_for_each(addr, mc_list) {
1811 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1812 cmd->count, addr->addr);
1813 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1814 addr->addr, ETH_ALEN);
1815 cmd->count++;
1816 }
1817
1818 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1819}
1820
1821static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1822 unsigned int changed_flags,
1823 unsigned int *total_flags,
1824 u64 multicast)
1825{
e59647ea
EP		 1826 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1827 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1828
e59647ea 1829 mutex_lock(&mvm->mutex);
51b6b9e0 1830
e59647ea
EP		 1831 /* replace previous configuration */
1832 kfree(mvm->mcast_filter_cmd);
1833 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1834
e59647ea
EP		 1835 if (!cmd)
1836 goto out;
51b6b9e0 1837
e59647ea
EP		 1838 iwl_mvm_recalc_multicast(mvm);
1839out:
1840 mutex_unlock(&mvm->mutex);
1841 *total_flags = 0;
51b6b9e0
EG		 1842}
1843
c87163b9
EP		 1844#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1845struct iwl_bcast_iter_data {
1846 struct iwl_mvm *mvm;
1847 struct iwl_bcast_filter_cmd *cmd;
1848 u8 current_filter;
1849};
1850
1851static void
1852iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1853 const struct iwl_fw_bcast_filter *in_filter,
1854 struct iwl_fw_bcast_filter *out_filter)
1855{
1856 struct iwl_fw_bcast_filter_attr *attr;
1857 int i;
1858
1859 memcpy(out_filter, in_filter, sizeof(*out_filter));
1860
1861 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1862 attr = &out_filter->attrs[i];
1863
1864 if (!attr->mask)
1865 break;
1866
2ee8f021
EP		 1867 switch (attr->reserved1) {
1868 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1869 if (vif->bss_conf.arp_addr_cnt != 1) {
1870 attr->mask = 0;
1871 continue;
1872 }
1873
1874 attr->val = vif->bss_conf.arp_addr_list[0];
1875 break;
1876 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1877 attr->val = *(__be32 *)&vif->addr[2];
1878 break;
1879 default:
1880 break;
1881 }
1882 attr->reserved1 = 0;
c87163b9
EP		 1883 out_filter->num_attrs++;
1884 }
1885}
1886
1887static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1888 struct ieee80211_vif *vif)
1889{
1890 struct iwl_bcast_iter_data *data = _data;
1891 struct iwl_mvm *mvm = data->mvm;
1892 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1893 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1894 struct iwl_fw_bcast_mac *bcast_mac;
1895 int i;
1896
1897 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1898 return;
1899
1900 bcast_mac = &cmd->macs[mvmvif->id];
1901
e48393e8
IP		 1902 /*
1903 * enable filtering only for associated stations, but not for P2P
1904 * Clients
1905 */
1906 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1907 !vif->bss_conf.assoc)
c87163b9
EP		 1908 return;
1909
1910 bcast_mac->default_discard = 1;
1911
1912 /* copy all configured filters */
1913 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1914 /*
1915 * Make sure we don't exceed our filters limit.
1916 * if there is still a valid filter to be configured,
1917 * be on the safe side and just allow bcast for this mac.
1918 */
1919 if (WARN_ON_ONCE(data->current_filter >=
1920 ARRAY_SIZE(cmd->filters))) {
1921 bcast_mac->default_discard = 0;
1922 bcast_mac->attached_filters = 0;
1923 break;
1924 }
1925
1926 iwl_mvm_set_bcast_filter(vif,
1927 &mvm->bcast_filters[i],
1928 &cmd->filters[data->current_filter]);
1929
1930 /* skip current filter if it contains no attributes */
1931 if (!cmd->filters[data->current_filter].num_attrs)
1932 continue;
1933
1934 /* attach the filter to current mac */
1935 bcast_mac->attached_filters |=
1936 cpu_to_le16(BIT(data->current_filter));
1937
1938 data->current_filter++;
1939 }
1940}
1941
de06a59e
EP		 1942bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1943 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1944{
c87163b9
EP		 1945 struct iwl_bcast_iter_data iter_data = {
1946 .mvm = mvm,
de06a59e 1947 .cmd = cmd,
c87163b9
EP		 1948 };
1949
3b8983b1
MS		 1950 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1951 return false;
1952
de06a59e
EP		 1953 memset(cmd, 0, sizeof(*cmd));
1954 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1955 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1956
1957#ifdef CONFIG_IWLWIFI_DEBUGFS
1958 /* use debugfs filters/macs if override is configured */
1959 if (mvm->dbgfs_bcast_filtering.override) {
1960 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1961 sizeof(cmd->filters));
1962 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1963 sizeof(cmd->macs));
1964 return true;
1965 }
1966#endif
c87163b9
EP		 1967
1968 /* if no filters are configured, do nothing */
1969 if (!mvm->bcast_filters)
de06a59e 1970 return false;
c87163b9
EP		 1971
1972 /* configure and attach these filters for each associated sta vif */
1973 ieee80211_iterate_active_interfaces(
1974 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1975 iwl_mvm_bcast_filter_iterator, &iter_data);
1976
de06a59e
EP		 1977 return true;
1978}
1979static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1980 struct ieee80211_vif *vif)
1981{
1982 struct iwl_bcast_filter_cmd cmd;
1983
1984 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1985 return 0;
1986
1987 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1988 return 0;
1989
a1022927 1990 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1991 sizeof(cmd), &cmd);
1992}
1993#else
1994static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1995 struct ieee80211_vif *vif)
1996{
1997 return 0;
1998}
1999#endif
2000
8ca151b5
JB		 2001static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2002 struct ieee80211_vif *vif,
2003 struct ieee80211_bss_conf *bss_conf,
2004 u32 changes)
2005{
2006 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2007 int ret;
2008
6e97b0d2
IP		 2009 /*
2010 * Re-calculate the tsf id, as the master-slave relations depend on the
2011 * beacon interval, which was not known when the station interface was
2012 * added.
2013 */
2014 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2015 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2016
3dfd3a97
JB		 2017 /*
2018 * If we're not associated yet, take the (new) BSSID before associating
2019 * so the firmware knows. If we're already associated, then use the old
2020 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2021 * branch for disassociation below.
2022 */
2023 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2024 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2025
2026 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2027 if (ret)
2028 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2029
3dfd3a97
JB		 2030 /* after sending it once, adopt mac80211 data */
2031 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2032 mvmvif->associated = bss_conf->assoc;
2033
8ca151b5
JB		 2034 if (changes & BSS_CHANGED_ASSOC) {
2035 if (bss_conf->assoc) {
33cef925
JB		 2036 /* clear statistics to get clean beacon counter */
2037 iwl_mvm_request_statistics(mvm, true);
2038 memset(&mvmvif->beacon_stats, 0,
2039 sizeof(mvmvif->beacon_stats));
2040
8ca151b5 2041 /* add quota for this interface */
7754ae79 2042 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2043 if (ret) {
2044 IWL_ERR(mvm, "failed to update quotas\n");
2045 return;
2046 }
016d27e1
JB		 2047
2048 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2049 &mvm->status)) {
2050 /*
2051 * If we're restarting then the firmware will
2052 * obviously have lost synchronisation with
2053 * the AP. It will attempt to synchronise by
2054 * itself, but we can make it more reliable by
2055 * scheduling a session protection time event.
2056 *
2057 * The firmware needs to receive a beacon to
2058 * catch up with synchronisation, use 110% of
2059 * the beacon interval.
2060 *
2061 * Set a large maximum delay to allow for more
2062 * than a single interface.
2063 */
2064 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2065 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2066 5 * dur, false);
016d27e1 2067 }
1f3b0ff8
LE		 2068
2069 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2070 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2071 if (vif->p2p) {
29a90a49 2072 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2073 iwl_mvm_update_smps(mvm, vif,
2074 IWL_MVM_SMPS_REQ_PROT,
2075 IEEE80211_SMPS_DYNAMIC);
2076 }
8ca151b5 2077 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2078 /*
2079 * If update fails - SF might be running in associated
2080 * mode while disassociated - which is forbidden.
2081 */
2082 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2083 "Failed to update SF upon disassociation\n");
2084
8ca151b5
JB		 2085 /* remove AP station now that the MAC is unassoc */
2086 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2087 if (ret)
2088 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2089
2090 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2091 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2092 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2093 /* remove quota for this interface */
7754ae79 2094 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2095 if (ret)
2096 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2097
2098 if (vif->p2p)
2099 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2100
2101 /* this will take the cleared BSSID from bss_conf */
2102 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2103 if (ret)
2104 IWL_ERR(mvm,
2105 "failed to update MAC %pM (clear after unassoc)\n",
2106 vif->addr);
8ca151b5 2107 }
a20fd398 2108
e59647ea 2109 iwl_mvm_recalc_multicast(mvm);
c87163b9 2110 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2111
a20fd398
AO		 2112 /* reset rssi values */
2113 mvmvif->bf_data.ave_beacon_signal = 0;
2114
8e484f0b 2115 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2116 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2117 IEEE80211_SMPS_AUTOMATIC);
989c6505 2118 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2119 /*
2120 * We received a beacon _after_ association so
2121 * remove the session protection.
2122 */
2123 iwl_mvm_remove_time_event(mvm, mvmvif,
2124 &mvmvif->time_event_data);
8ca151b5 2125 }
cc87d322
EH		 2126
2127 if (changes & BSS_CHANGED_BEACON_INFO) {
2128 iwl_mvm_sf_update(mvm, vif, false);
2129 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2130 }
2131
1bc10d3b
JB		 2132 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2133 ret = iwl_mvm_power_update_mac(mvm);
2134 if (ret)
2135 IWL_ERR(mvm, "failed to update power mode\n");
2136 }
2137
88f2fd73
MG		 2138 if (changes & BSS_CHANGED_TXPOWER) {
2139 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2140 bss_conf->txpower);
2141 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2142 }
a20fd398
AO		 2143
2144 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2145 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2146 /* reset cqm events tracking */
2147 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2148 if (mvmvif->bf_data.bf_enabled) {
2149 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2150 if (ret)
2151 IWL_ERR(mvm,
2152 "failed to update CQM thresholds\n");
2153 }
a20fd398 2154 }
2ee8f021
EP		 2155
2156 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2157 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2158 iwl_mvm_configure_bcast_filter(mvm, vif);
2159 }
8ca151b5
JB		 2160}
2161
5023d966
JB		 2162static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2163 struct ieee80211_vif *vif)
8ca151b5
JB		 2164{
2165 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2166 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2167 int ret;
2168
576eeee9
EP		 2169 /*
2170 * iwl_mvm_mac_ctxt_add() might read directly from the device
2171 * (the system time), so make sure it is available.
2172 */
2173 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2174 if (ret)
2175 return ret;
2176
8ca151b5
JB		 2177 mutex_lock(&mvm->mutex);
2178
2179 /* Send the beacon template */
2180 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2181 if (ret)
2182 goto out_unlock;
2183
6e97b0d2
IP		 2184 /*
2185 * Re-calculate the tsf id, as the master-slave relations depend on the
2186 * beacon interval, which was not known when the AP interface was added.
2187 */
2188 if (vif->type == NL80211_IFTYPE_AP)
2189 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2190
8ca151b5
JB		 2191 /* Add the mac context */
2192 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2193 if (ret)
2194 goto out_unlock;
2195
2196 /* Perform the binding */
2197 ret = iwl_mvm_binding_add_vif(mvm, vif);
2198 if (ret)
2199 goto out_remove;
2200
8ca151b5
JB		 2201 /* Send the bcast station. At this stage the TBTT and DTIM time events
2202 * are added and applied to the scheduler */
013290aa 2203 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2204 if (ret)
2205 goto out_unbind;
2206
5691e218
IP		 2207 /* must be set before quota calculations */
2208 mvmvif->ap_ibss_active = true;
2209
a11e144e 2210 /* power updated needs to be done before quotas */
999609f1 2211 iwl_mvm_power_update_mac(mvm);
a11e144e 2212
7754ae79 2213 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2214 if (ret)
a11e144e 2215 goto out_quota_failed;
8ca151b5 2216
5023d966 2217 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2218 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2219 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2220
29a90a49
EP		 2221 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2222
8e484f0b 2223 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2224
f697267f
AN		 2225 /* we don't support TDLS during DCM */
2226 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2227 iwl_mvm_teardown_tdls_peers(mvm);
2228
939e4904 2229 goto out_unlock;
8ca151b5 2230
a11e144e 2231out_quota_failed:
999609f1 2232 iwl_mvm_power_update_mac(mvm);
5691e218 2233 mvmvif->ap_ibss_active = false;
013290aa 2234 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2235out_unbind:
2236 iwl_mvm_binding_remove_vif(mvm, vif);
2237out_remove:
2238 iwl_mvm_mac_ctxt_remove(mvm, vif);
2239out_unlock:
2240 mutex_unlock(&mvm->mutex);
576eeee9 2241 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2242 return ret;
2243}
2244
5023d966
JB		 2245static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2246 struct ieee80211_vif *vif)
8ca151b5
JB		 2247{
2248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2249 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2250
38a12b5b
JB		 2251 iwl_mvm_prepare_mac_removal(mvm, vif);
2252
8ca151b5
JB		 2253 mutex_lock(&mvm->mutex);
2254
664322fa 2255 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2256 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2257 iwl_mvm_remove_time_event(mvm, mvmvif,
2258 &mvmvif->time_event_data);
664322fa 2259 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2260 }
664322fa 2261
003e5236
AO		 2262 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2263 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2264 mvm->csa_tx_block_bcn_timeout = 0;
2265 }
2266
5023d966 2267 mvmvif->ap_ibss_active = false;
1c87bbad 2268 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2269
8e484f0b 2270 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2271
29a90a49
EP		 2272 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2273
5023d966 2274 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2275 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2276 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2277
7754ae79 2278 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2279 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2280 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2281
999609f1 2282 iwl_mvm_power_update_mac(mvm);
a11e144e 2283
8ca151b5
JB		 2284 iwl_mvm_mac_ctxt_remove(mvm, vif);
2285
2286 mutex_unlock(&mvm->mutex);
2287}
2288
5023d966
JB		 2289static void
2290iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2291 struct ieee80211_vif *vif,
2292 struct ieee80211_bss_conf *bss_conf,
2293 u32 changes)
8ca151b5 2294{
be2056fc 2295 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2296
be2056fc
IP		 2297 /* Changes will be applied when the AP/IBSS is started */
2298 if (!mvmvif->ap_ibss_active)
2299 return;
2300
863230da 2301 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2302 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2303 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2304 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2305
8ca151b5 2306 /* Need to send a new beacon template to the FW */
863230da
JB		 2307 if (changes & BSS_CHANGED_BEACON &&
2308 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2309 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2310
2311 if (changes & BSS_CHANGED_TXPOWER) {
2312 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2313 bss_conf->txpower);
2314 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2315 }
2316
8ca151b5
JB		 2317}
2318
2319static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2320 struct ieee80211_vif *vif,
2321 struct ieee80211_bss_conf *bss_conf,
2322 u32 changes)
2323{
2324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2325
576eeee9
EP		 2326 /*
2327 * iwl_mvm_bss_info_changed_station() might call
2328 * iwl_mvm_protect_session(), which reads directly from
2329 * the device (the system time), so make sure it is available.
2330 */
2331 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2332 return;
2333
8ca151b5
JB		 2334 mutex_lock(&mvm->mutex);
2335
723f02ed 2336 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2337 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2338
8ca151b5
JB		 2339 switch (vif->type) {
2340 case NL80211_IFTYPE_STATION:
2341 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2342 break;
2343 case NL80211_IFTYPE_AP:
5023d966
JB		 2344 case NL80211_IFTYPE_ADHOC:
2345 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2346 break;
2347 default:
2348 /* shouldn't happen */
2349 WARN_ON_ONCE(1);
2350 }
2351
2352 mutex_unlock(&mvm->mutex);
576eeee9 2353 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2354}
2355
4660dfbb
EP		 2356static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2357 enum iwl_scan_status scan_type)
2358{
2359 int ret;
2360 bool wait_for_handlers = false;
2361
2362 mutex_lock(&mvm->mutex);
2363
2364 if (mvm->scan_status != scan_type) {
2365 ret = 0;
2366 /* make sure there are no pending notifications */
2367 wait_for_handlers = true;
2368 goto out;
2369 }
2370
2371 switch (scan_type) {
2372 case IWL_MVM_SCAN_SCHED:
2373 ret = iwl_mvm_scan_offload_stop(mvm, true);
2374 break;
2375 case IWL_MVM_SCAN_OS:
2376 ret = iwl_mvm_cancel_scan(mvm);
2377 break;
2378 case IWL_MVM_SCAN_NONE:
2379 default:
2380 WARN_ON_ONCE(1);
2381 ret = -EINVAL;
2382 break;
2383 }
2384 if (ret)
2385 goto out;
2386
2387 wait_for_handlers = true;
2388out:
2389 mutex_unlock(&mvm->mutex);
2390
2391 /* make sure we consume the completion notification */
2392 if (wait_for_handlers)
2393 iwl_mvm_wait_for_async_handlers(mvm);
2394
2395 return ret;
2396}
8ca151b5
JB		 2397static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2398 struct ieee80211_vif *vif,
c56ef672 2399 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2400{
2401 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 2402 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 2403 int ret;
2404
762533ba
DS		 2405 if (req->n_channels == 0 ||
2406 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2407 return -EINVAL;
2408
d2496221
DS		 2409 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2410 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2411 if (ret)
2412 return ret;
2413 }
4660dfbb 2414
8ca151b5
JB		 2415 mutex_lock(&mvm->mutex);
2416
88931cc9
AN		 2417 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2418 IWL_ERR(mvm, "scan while LAR regdomain is not set\n");
2419 ret = -EBUSY;
2420 goto out;
2421 }
2422
4660dfbb 2423 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 2424 ret = -EBUSY;
519e2026
AN		 2425 goto out;
2426 }
8ca151b5 2427
519e2026
AN		 2428 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2429
b975e55a 2430 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 2431 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
fb98be5e 2432 else
1f940386 2433 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e 2434
519e2026
AN		 2435 if (ret)
2436 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2437out:
8ca151b5 2438 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 2439 return ret;
2440}
2441
2442static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2443 struct ieee80211_vif *vif)
2444{
2445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2446
2447 mutex_lock(&mvm->mutex);
2448
e7d3abab
LC		 2449 /* Due to a race condition, it's possible that mac80211 asks
2450 * us to stop a hw_scan when it's already stopped. This can
2451 * happen, for instance, if we stopped the scan ourselves,
2452 * called ieee80211_scan_completed() and the userspace called
2453 * cancel scan scan before ieee80211_scan_work() could run.
2454 * To handle that, simply return if the scan is not running.
2455 */
2456 /* FIXME: for now, we ignore this race for UMAC scans, since
2457 * they don't set the scan_status.
2458 */
2459 if ((mvm->scan_status == IWL_MVM_SCAN_OS) ||
2460 (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2461 iwl_mvm_cancel_scan(mvm);
8ca151b5
JB		 2462
2463 mutex_unlock(&mvm->mutex);
2464}
2465
2466static void
2467iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2468 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2469 int num_frames,
2470 enum ieee80211_frame_release_type reason,
2471 bool more_data)
2472{
2473 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2474
3e56eadf 2475 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2476
3e56eadf
JB		 2477 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2478 tids, more_data, false);
2479}
2480
2481static void
2482iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2483 struct ieee80211_sta *sta, u16 tids,
2484 int num_frames,
2485 enum ieee80211_frame_release_type reason,
2486 bool more_data)
2487{
2488 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2489
2490 /* Called when we need to transmit (a) frame(s) from agg queue */
2491
2492 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2493 tids, more_data, true);
8ca151b5
JB		 2494}
2495
2496static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2497 struct ieee80211_vif *vif,
2498 enum sta_notify_cmd cmd,
2499 struct ieee80211_sta *sta)
2500{
2501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2502 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2503 unsigned long txqs = 0, tids = 0;
3e56eadf 2504 int tid;
8ca151b5 2505
c22b0ff5
EG		 2506 spin_lock_bh(&mvmsta->lock);
2507 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2508 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2509
2510 if (tid_data->state != IWL_AGG_ON &&
2511 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2512 continue;
2513
2514 __set_bit(tid_data->txq_id, &txqs);
2515
2516 if (iwl_mvm_tid_queued(tid_data) == 0)
2517 continue;
2518
2519 __set_bit(tid, &tids);
2520 }
2521
8ca151b5
JB		 2522 switch (cmd) {
2523 case STA_NOTIFY_SLEEP:
e3d4bc8c 2524 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2525 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2526
c22b0ff5 2527 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2528 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2529
2530 if (txqs)
2531 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2532 /*
2533 * The fw updates the STA to be asleep. Tx packets on the Tx
2534 * queues to this station will not be transmitted. The fw will
2535 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2536 */
2537 break;
2538 case STA_NOTIFY_AWAKE:
881acd89 2539 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2540 break;
c22b0ff5
EG		 2541
2542 if (txqs)
2543 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2544 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2545 break;
2546 default:
2547 break;
2548 }
c22b0ff5 2549 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2550}
2551
1ddbbb0c
JB		 2552static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2553 struct ieee80211_vif *vif,
2554 struct ieee80211_sta *sta)
2555{
2556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2557 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2558
2559 /*
2560 * This is called before mac80211 does RCU synchronisation,
2561 * so here we already invalidate our internal RCU-protected
2562 * station pointer. The rest of the code will thus no longer
2563 * be able to find the station this way, and we don't rely
2564 * on further RCU synchronisation after the sta_state()
2565 * callback deleted the station.
2566 */
2567 mutex_lock(&mvm->mutex);
2568 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2569 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2570 ERR_PTR(-ENOENT));
2571 mutex_unlock(&mvm->mutex);
2572}
2573
bd1ba664
JB		 2574static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2575 const u8 *bssid)
2576{
2577 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2578 return;
2579
2580 if (iwlwifi_mod_params.uapsd_disable) {
2581 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2582 return;
2583 }
2584
2585 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2586}
2587
8ca151b5
JB		 2588static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2589 struct ieee80211_vif *vif,
2590 struct ieee80211_sta *sta,
2591 enum ieee80211_sta_state old_state,
2592 enum ieee80211_sta_state new_state)
2593{
2594 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2595 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2596 int ret;
2597
2598 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2599 sta->addr, old_state, new_state);
2600
2601 /* this would be a mac80211 bug ... but don't crash */
2602 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2603 return -EINVAL;
2604
2605 /* if a STA is being removed, reuse its ID */
2606 flush_work(&mvm->sta_drained_wk);
2607
2608 mutex_lock(&mvm->mutex);
2609 if (old_state == IEEE80211_STA_NOTEXIST &&
2610 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2611 /*
2612 * Firmware bug - it'll crash if the beacon interval is less
2613 * than 16. We can't avoid connecting at all, so refuse the
2614 * station state change, this will cause mac80211 to abandon
2615 * attempts to connect to this AP, and eventually wpa_s will
2616 * blacklist the AP...
2617 */
2618 if (vif->type == NL80211_IFTYPE_STATION &&
2619 vif->bss_conf.beacon_int < 16) {
2620 IWL_ERR(mvm,
2621 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2622 sta->addr, vif->bss_conf.beacon_int);
2623 ret = -EINVAL;
2624 goto out_unlock;
2625 }
cf7b491d
AN		 2626
2627 if (sta->tdls &&
2628 (vif->p2p ||
fa3d07e4
AN		 2629 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2630 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2631 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2632 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2633 ret = -EBUSY;
2634 goto out_unlock;
2635 }
2636
8ca151b5 2637 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2638 if (sta->tdls && ret == 0)
2639 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2640 } else if (old_state == IEEE80211_STA_NONE &&
2641 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2642 /*
2643 * EBS may be disabled due to previous failures reported by FW.
2644 * Reset EBS status here assuming environment has been changed.
2645 */
2646 mvm->last_ebs_successful = true;
bd1ba664 2647 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2648 ret = 0;
2649 } else if (old_state == IEEE80211_STA_AUTH &&
2650 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2651 ret = iwl_mvm_update_sta(mvm, vif, sta);
2652 if (ret == 0)
2653 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2654 mvmvif->phy_ctxt->channel->band,
2655 true);
8ca151b5
JB		 2656 } else if (old_state == IEEE80211_STA_ASSOC &&
2657 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2658
2659 /* we don't support TDLS during DCM */
2660 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2661 iwl_mvm_teardown_tdls_peers(mvm);
2662
7df15b1e 2663 /* enable beacon filtering */
fa7b2e7f 2664 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2665 ret = 0;
2666 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2667 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2668 /* disable beacon filtering */
a1022927 2669 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2670 ret = 0;
2671 } else if (old_state == IEEE80211_STA_ASSOC &&
2672 new_state == IEEE80211_STA_AUTH) {
2673 ret = 0;
2674 } else if (old_state == IEEE80211_STA_AUTH &&
2675 new_state == IEEE80211_STA_NONE) {
2676 ret = 0;
2677 } else if (old_state == IEEE80211_STA_NONE &&
2678 new_state == IEEE80211_STA_NOTEXIST) {
2679 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2680 if (sta->tdls)
2681 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2682 } else {
2683 ret = -EIO;
2684 }
48bc1307 2685 out_unlock:
8ca151b5
JB		 2686 mutex_unlock(&mvm->mutex);
2687
9c126cd6
LK		 2688 if (sta->tdls && ret == 0) {
2689 if (old_state == IEEE80211_STA_NOTEXIST &&
2690 new_state == IEEE80211_STA_NONE)
2691 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2692 else if (old_state == IEEE80211_STA_NONE &&
2693 new_state == IEEE80211_STA_NOTEXIST)
2694 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2695 }
2696
8ca151b5
JB		 2697 return ret;
2698}
2699
2700static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2701{
2702 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2703
2704 mvm->rts_threshold = value;
2705
2706 return 0;
2707}
2708
1f3b0ff8
LE		 2709static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2710 struct ieee80211_vif *vif,
2711 struct ieee80211_sta *sta, u32 changed)
2712{
2713 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2714
2715 if (vif->type == NL80211_IFTYPE_STATION &&
2716 changed & IEEE80211_RC_NSS_CHANGED)
2717 iwl_mvm_sf_update(mvm, vif, false);
2718}
2719
8ca151b5
JB		 2720static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2721 struct ieee80211_vif *vif, u16 ac,
2722 const struct ieee80211_tx_queue_params *params)
2723{
2724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2725 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2726
2727 mvmvif->queue_params[ac] = *params;
2728
2729 /*
2730 * No need to update right away, we'll get BSS_CHANGED_QOS
2731 * The exception is P2P_DEVICE interface which needs immediate update.
2732 */
2733 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2734 int ret;
2735
2736 mutex_lock(&mvm->mutex);
3dfd3a97 2737 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2738 mutex_unlock(&mvm->mutex);
2739 return ret;
2740 }
2741 return 0;
2742}
2743
2744static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2745 struct ieee80211_vif *vif)
2746{
2747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2748 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2749 200 + vif->bss_conf.beacon_int);
2750 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2751 100 + vif->bss_conf.beacon_int);
2752
2753 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2754 return;
2755
576eeee9
EP		 2756 /*
2757 * iwl_mvm_protect_session() reads directly from the device
2758 * (the system time), so make sure it is available.
2759 */
2760 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2761 return;
2762
8ca151b5
JB		 2763 mutex_lock(&mvm->mutex);
2764 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2765 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2766 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2767
2768 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2769}
2770
35a000b7
DS		 2771static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2772 struct ieee80211_vif *vif,
2773 struct cfg80211_sched_scan_request *req,
633e2713 2774 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2775{
2776 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2777 int ret;
2778
d2496221
DS		 2779 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2780 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2781 if (ret)
2782 return ret;
2783 }
4660dfbb 2784
35a000b7
DS		 2785 mutex_lock(&mvm->mutex);
2786
88931cc9
AN		 2787 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2788 IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n");
2789 ret = -EBUSY;
2790 goto out;
2791 }
2792
1f940386 2793 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2794 ret = -EBUSY;
2795 goto out;
2796 }
2797
4660dfbb 2798 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2799 ret = -EBUSY;
2800 goto out;
2801 }
2802
b141c235 2803 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2804 if (ret)
b141c235 2805 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2806
35a000b7
DS		 2807out:
2808 mutex_unlock(&mvm->mutex);
2809 return ret;
2810}
2811
37e3308c
JB		 2812static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2813 struct ieee80211_vif *vif)
35a000b7
DS		 2814{
2815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2816 int ret;
35a000b7
DS		 2817
2818 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2819
2820 /* Due to a race condition, it's possible that mac80211 asks
2821 * us to stop a sched_scan when it's already stopped. This
2822 * can happen, for instance, if we stopped the scan ourselves,
2823 * called ieee80211_sched_scan_stopped() and the userspace called
2824 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2825 * could run. To handle this, simply return if the scan is
2826 * not running.
2827 */
2828 /* FIXME: for now, we ignore this race for UMAC scans, since
2829 * they don't set the scan_status.
2830 */
2831 if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
2832 !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2833 mutex_unlock(&mvm->mutex);
2834 return 0;
2835 }
2836
fb98be5e 2837 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2838 mutex_unlock(&mvm->mutex);
33ea27f6 2839 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2840
33ea27f6 2841 return ret;
35a000b7
DS		 2842}
2843
8ca151b5
JB		 2844static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2845 enum set_key_cmd cmd,
2846 struct ieee80211_vif *vif,
2847 struct ieee80211_sta *sta,
2848 struct ieee80211_key_conf *key)
2849{
2850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2851 int ret;
2852
2853 if (iwlwifi_mod_params.sw_crypto) {
2854 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2855 return -EOPNOTSUPP;
2856 }
2857
2858 switch (key->cipher) {
2859 case WLAN_CIPHER_SUITE_TKIP:
2860 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2861 /* fall-through */
2862 case WLAN_CIPHER_SUITE_CCMP:
2863 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2864 break;
2865 case WLAN_CIPHER_SUITE_AES_CMAC:
2866 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2867 break;
2868 case WLAN_CIPHER_SUITE_WEP40:
2869 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2870 /* For non-client mode, only use WEP keys for TX as we probably
2871 * don't have a station yet anyway and would then have to keep
2872 * track of the keys, linking them to each of the clients/peers
2873 * as they appear. For now, don't do that, for performance WEP
2874 * offload doesn't really matter much, but we need it for some
2875 * other offload features in client mode.
8ca151b5 2876 */
ba3943b0
JB		 2877 if (vif->type != NL80211_IFTYPE_STATION)
2878 return 0;
2879 break;
8ca151b5 2880 default:
e36e5433
MS		 2881 /* currently FW supports only one optional cipher scheme */
2882 if (hw->n_cipher_schemes &&
2883 hw->cipher_schemes->cipher == key->cipher)
2884 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2885 else
2886 return -EOPNOTSUPP;
8ca151b5
JB		 2887 }
2888
2889 mutex_lock(&mvm->mutex);
2890
2891 switch (cmd) {
2892 case SET_KEY:
5023d966
JB		 2893 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2894 vif->type == NL80211_IFTYPE_AP) && !sta) {
2895 /*
2896 * GTK on AP interface is a TX-only key, return 0;
2897 * on IBSS they're per-station and because we're lazy
2898 * we don't support them for RX, so do the same.
2899 */
6caffd4f
JB		 2900 ret = 0;
2901 key->hw_key_idx = STA_KEY_IDX_INVALID;
2902 break;
2903 }
2904
8ca151b5
JB		 2905 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2906 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2907 if (ret) {
2908 IWL_WARN(mvm, "set key failed\n");
2909 /*
2910 * can't add key for RX, but we don't need it
2911 * in the device for TX so still return 0
2912 */
6caffd4f 2913 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2914 ret = 0;
2915 }
2916
2917 break;
2918 case DISABLE_KEY:
6caffd4f
JB		 2919 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2920 ret = 0;
2921 break;
2922 }
2923
8ca151b5
JB		 2924 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2925 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2926 break;
2927 default:
2928 ret = -EINVAL;
2929 }
2930
2931 mutex_unlock(&mvm->mutex);
2932 return ret;
2933}
2934
2935static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2936 struct ieee80211_vif *vif,
2937 struct ieee80211_key_conf *keyconf,
2938 struct ieee80211_sta *sta,
2939 u32 iv32, u16 *phase1key)
2940{
2941 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2942
5023d966
JB		 2943 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2944 return;
2945
8ca151b5
JB		 2946 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2947}
2948
2949
b112889c
AM		 2950static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2951 struct iwl_rx_packet *pkt, void *data)
2952{
2953 struct iwl_mvm *mvm =
2954 container_of(notif_wait, struct iwl_mvm, notif_wait);
2955 struct iwl_hs20_roc_res *resp;
2956 int resp_len = iwl_rx_packet_payload_len(pkt);
2957 struct iwl_mvm_time_event_data *te_data = data;
2958
2959 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2960 return true;
2961
2962 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2963 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2964 return true;
2965 }
2966
2967 resp = (void *)pkt->data;
2968
2969 IWL_DEBUG_TE(mvm,
2970 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2971 resp->status, resp->event_unique_id);
2972
2973 te_data->uid = le32_to_cpu(resp->event_unique_id);
2974 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2975 te_data->uid);
2976
2977 spin_lock_bh(&mvm->time_event_lock);
2978 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2979 spin_unlock_bh(&mvm->time_event_lock);
2980
2981 return true;
2982}
2983
2984#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2985static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2986 struct ieee80211_channel *channel,
2987 struct ieee80211_vif *vif,
2988 int duration)
2989{
2990 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2991 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2992 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2993 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2994 struct iwl_notification_wait wait_time_event;
2995 struct iwl_hs20_roc_req aux_roc_req = {
2996 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2997 .id_and_color =
2998 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2999 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3000 /* Set the channel info data */
3001 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3002 PHY_BAND_24 : PHY_BAND_5,
3003 .channel_info.channel = channel->hw_value,
3004 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3005 /* Set the time and duration */
3006 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3007 .apply_time_max_delay =
3008 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3009 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3010 };
3011
3012 /* Set the node address */
3013 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3014
a6cc5163
MG		 3015 lockdep_assert_held(&mvm->mutex);
3016
3017 spin_lock_bh(&mvm->time_event_lock);
3018
3019 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3020 spin_unlock_bh(&mvm->time_event_lock);
3021 return -EIO;
3022 }
3023
b112889c
AM		 3024 te_data->vif = vif;
3025 te_data->duration = duration;
3026 te_data->id = HOT_SPOT_CMD;
3027
b112889c
AM		 3028 spin_unlock_bh(&mvm->time_event_lock);
3029
3030 /*
3031 * Use a notification wait, which really just processes the
3032 * command response and doesn't wait for anything, in order
3033 * to be able to process the response and get the UID inside
3034 * the RX path. Using CMD_WANT_SKB doesn't work because it
3035 * stores the buffer and then wakes up this thread, by which
3036 * time another notification (that the time event started)
3037 * might already be processed unsuccessfully.
3038 */
3039 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3040 time_event_response,
3041 ARRAY_SIZE(time_event_response),
3042 iwl_mvm_rx_aux_roc, te_data);
3043
3044 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3045 &aux_roc_req);
3046
3047 if (res) {
3048 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3049 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3050 goto out_clear_te;
3051 }
3052
3053 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3054 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3055 /* should never fail */
3056 WARN_ON_ONCE(res);
3057
3058 if (res) {
3059 out_clear_te:
3060 spin_lock_bh(&mvm->time_event_lock);
3061 iwl_mvm_te_clear_data(mvm, te_data);
3062 spin_unlock_bh(&mvm->time_event_lock);
3063 }
3064
3065 return res;
3066}
3067
8ca151b5
JB		 3068static int iwl_mvm_roc(struct ieee80211_hw *hw,
3069 struct ieee80211_vif *vif,
3070 struct ieee80211_channel *channel,
d339d5ca
IP		 3071 int duration,
3072 enum ieee80211_roc_type type)
8ca151b5
JB		 3073{
3074 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3075 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3076 struct cfg80211_chan_def chandef;
31d385ae
IP		 3077 struct iwl_mvm_phy_ctxt *phy_ctxt;
3078 int ret, i;
3079
3080 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3081 duration, type);
8ca151b5 3082
6ed13164
MG		 3083 flush_work(&mvm->roc_done_wk);
3084
a6cc5163
MG		 3085 mutex_lock(&mvm->mutex);
3086
b112889c
AM		 3087 switch (vif->type) {
3088 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 3089 if (mvm->fw->ucode_capa.capa[0] &
3090 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
3091 /* Use aux roc framework (HS20) */
3092 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3093 vif, duration);
3094 goto out_unlock;
3095 }
3096 IWL_ERR(mvm, "hotspot not supported\n");
3097 ret = -EINVAL;
a6cc5163 3098 goto out_unlock;
b112889c
AM		 3099 case NL80211_IFTYPE_P2P_DEVICE:
3100 /* handle below */
3101 break;
3102 default:
3103 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3104 ret = -EINVAL;
3105 goto out_unlock;
8ca151b5
JB		 3106 }
3107
31d385ae
IP		 3108 for (i = 0; i < NUM_PHY_CTX; i++) {
3109 phy_ctxt = &mvm->phy_ctxts[i];
3110 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3111 continue;
3112
3113 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3114 /*
3115 * Unbind the P2P_DEVICE from the current PHY context,
3116 * and if the PHY context is not used remove it.
3117 */
3118 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3119 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3120 goto out_unlock;
3121
3122 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3123
3124 /* Bind the P2P_DEVICE to the current PHY Context */
3125 mvmvif->phy_ctxt = phy_ctxt;
3126
3127 ret = iwl_mvm_binding_add_vif(mvm, vif);
3128 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3129 goto out_unlock;
3130
3131 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3132 goto schedule_time_event;
3133 }
3134 }
3135
3136 /* Need to update the PHY context only if the ROC channel changed */
3137 if (channel == mvmvif->phy_ctxt->channel)
3138 goto schedule_time_event;
3139
8ca151b5 3140 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3141
31d385ae
IP		 3142 /*
3143 * Change the PHY context configuration as it is currently referenced
3144 * only by the P2P Device MAC
3145 */
3146 if (mvmvif->phy_ctxt->ref == 1) {
3147 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3148 &chandef, 1, 1);
3149 if (ret)
3150 goto out_unlock;
3151 } else {
3152 /*
3153 * The PHY context is shared with other MACs. Need to remove the
3154 * P2P Device from the binding, allocate an new PHY context and
3155 * create a new binding
3156 */
3157 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3158 if (!phy_ctxt) {
3159 ret = -ENOSPC;
3160 goto out_unlock;
3161 }
3162
3163 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3164 1, 1);
3165 if (ret) {
3166 IWL_ERR(mvm, "Failed to change PHY context\n");
3167 goto out_unlock;
3168 }
3169
3170 /* Unbind the P2P_DEVICE from the current PHY context */
3171 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3172 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3173 goto out_unlock;
3174
3175 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3176
3177 /* Bind the P2P_DEVICE to the new allocated PHY context */
3178 mvmvif->phy_ctxt = phy_ctxt;
3179
3180 ret = iwl_mvm_binding_add_vif(mvm, vif);
3181 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3182 goto out_unlock;
3183
3184 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3185 }
3186
3187schedule_time_event:
8ca151b5 3188 /* Schedule the time events */
e635c797 3189 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3190
31d385ae 3191out_unlock:
8ca151b5
JB		 3192 mutex_unlock(&mvm->mutex);
3193 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3194 return ret;
3195}
3196
3197static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3198{
3199 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3200
3201 IWL_DEBUG_MAC80211(mvm, "enter\n");
3202
3203 mutex_lock(&mvm->mutex);
bf5da87f 3204 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3205 mutex_unlock(&mvm->mutex);
3206
3207 IWL_DEBUG_MAC80211(mvm, "leave\n");
3208 return 0;
3209}
3210
b08c1d97
LC		 3211static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3212 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3213{
fe0f2de3
IP		 3214 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3215 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3216 int ret;
3217
b08c1d97
LC		 3218 lockdep_assert_held(&mvm->mutex);
3219
53a9d61e 3220 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3221
fe0f2de3
IP		 3222 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3223 if (!phy_ctxt) {
3224 ret = -ENOSPC;
3225 goto out;
3226 }
8ca151b5 3227
dcbc3e1a 3228 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3229 ctx->rx_chains_static,
3230 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3231 if (ret) {
3232 IWL_ERR(mvm, "Failed to add PHY context\n");
3233 goto out;
3234 }
3235
53a9d61e 3236 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3237 *phy_ctxt_id = phy_ctxt->id;
3238out:
b08c1d97
LC		 3239 return ret;
3240}
3241
3242static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3243 struct ieee80211_chanctx_conf *ctx)
3244{
3245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3246 int ret;
3247
3248 mutex_lock(&mvm->mutex);
3249 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3250 mutex_unlock(&mvm->mutex);
b08c1d97 3251
8ca151b5
JB		 3252 return ret;
3253}
3254
b08c1d97
LC		 3255static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3256 struct ieee80211_chanctx_conf *ctx)
3257{
3258 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3259 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3260
3261 lockdep_assert_held(&mvm->mutex);
3262
3263 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3264}
3265
8ca151b5
JB		 3266static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3267 struct ieee80211_chanctx_conf *ctx)
3268{
3269 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3270
3271 mutex_lock(&mvm->mutex);
b08c1d97 3272 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3273 mutex_unlock(&mvm->mutex);
3274}
3275
3276static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3277 struct ieee80211_chanctx_conf *ctx,
3278 u32 changed)
3279{
3280 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3281 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3282 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3283
31d385ae
IP		 3284 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3285 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3286 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3287 IEEE80211_CHANCTX_CHANGE_RADAR |
3288 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3289 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3290 phy_ctxt->ref, changed))
3291 return;
3292
8ca151b5 3293 mutex_lock(&mvm->mutex);
4d66449a 3294 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3295 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3296 ctx->rx_chains_static,
3297 ctx->rx_chains_dynamic);
3298 mutex_unlock(&mvm->mutex);
3299}
3300
b08c1d97
LC		 3301static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3302 struct ieee80211_vif *vif,
f0c97783
LC		 3303 struct ieee80211_chanctx_conf *ctx,
3304 bool switching_chanctx)
8ca151b5 3305{
fe0f2de3
IP		 3306 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3307 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3308 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3309 int ret;
3310
b08c1d97 3311 lockdep_assert_held(&mvm->mutex);
8ca151b5 3312
fe0f2de3 3313 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3314
3315 switch (vif->type) {
3316 case NL80211_IFTYPE_AP:
4741dd04
LC		 3317 /* only needed if we're switching chanctx (i.e. during CSA) */
3318 if (switching_chanctx) {
bd3398e2
AO		 3319 mvmvif->ap_ibss_active = true;
3320 break;
3321 }
5023d966 3322 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3323 /*
3324 * The AP binding flow is handled as part of the start_ap flow
5023d966 3325 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3326 */
3327 ret = 0;
b08c1d97 3328 goto out;
8ca151b5 3329 case NL80211_IFTYPE_STATION:
2533edce 3330 break;
8ca151b5 3331 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3332 /* always disable PS when a monitor interface is active */
3333 mvmvif->ps_disabled = true;
8ca151b5
JB		 3334 break;
3335 default:
3336 ret = -EINVAL;
b08c1d97 3337 goto out;
8ca151b5
JB		 3338 }
3339
3340 ret = iwl_mvm_binding_add_vif(mvm, vif);
3341 if (ret)
b08c1d97 3342 goto out;
8ca151b5
JB		 3343
3344 /*
92d85562
AB		 3345 * Power state must be updated before quotas,
3346 * otherwise fw will complain.
3347 */
999609f1 3348 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3349
3350 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3351 * interfaces. For the other types, the bss_info changed flow
3352 * will handle quota settings.
3353 */
3354 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3355 mvmvif->monitor_active = true;
7754ae79 3356 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3357 if (ret)
3358 goto out_remove_binding;
3359 }
3360
bd3398e2 3361 /* Handle binding during CSA */
a57c688d 3362 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3363 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3364 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3365 }
3366
4741dd04 3367 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3368 u32 duration = 2 * vif->bss_conf.beacon_int;
3369
3370 /* iwl_mvm_protect_session() reads directly from the
3371 * device (the system time), so make sure it is
3372 * available.
3373 */
3374 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3375 if (ret)
3376 goto out_remove_binding;
3377
3378 /* Protect the session to make sure we hear the first
3379 * beacon on the new channel.
3380 */
3381 iwl_mvm_protect_session(mvm, vif, duration, duration,
3382 vif->bss_conf.beacon_int / 2,
3383 true);
3384
3385 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3386
7754ae79 3387 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3388 }
3389
b08c1d97 3390 goto out;
8ca151b5 3391
b08c1d97 3392out_remove_binding:
8ca151b5 3393 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3394 iwl_mvm_power_update_mac(mvm);
b08c1d97 3395out:
8ca151b5
JB		 3396 if (ret)
3397 mvmvif->phy_ctxt = NULL;
3398 return ret;
3399}
b08c1d97
LC		 3400static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3401 struct ieee80211_vif *vif,
3402 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3403{
3404 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3405 int ret;
8ca151b5
JB		 3406
3407 mutex_lock(&mvm->mutex);
f0c97783 3408 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3409 mutex_unlock(&mvm->mutex);
3410
3411 return ret;
3412}
3413
3414static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3415 struct ieee80211_vif *vif,
f0c97783
LC		 3416 struct ieee80211_chanctx_conf *ctx,
3417 bool switching_chanctx)
b08c1d97
LC		 3418{
3419 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3420 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3421
3422 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3423
3424 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3425
8ca151b5 3426 switch (vif->type) {
5023d966 3427 case NL80211_IFTYPE_ADHOC:
b08c1d97 3428 goto out;
8ca151b5 3429 case NL80211_IFTYPE_MONITOR:
1e1391ca 3430 mvmvif->monitor_active = false;
2533edce 3431 mvmvif->ps_disabled = false;
8ca151b5 3432 break;
bd3398e2
AO		 3433 case NL80211_IFTYPE_AP:
3434 /* This part is triggered only during CSA */
4741dd04 3435 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3436 goto out;
bd3398e2 3437
7ef0aab6
AO		 3438 mvmvif->csa_countdown = false;
3439
003e5236
AO		 3440 /* Set CS bit on all the stations */
3441 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3442
3443 /* Save blocked iface, the timeout is set on the next beacon */
3444 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3445
bd3398e2 3446 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3447 break;
3448 case NL80211_IFTYPE_STATION:
3449 if (!switching_chanctx)
3450 break;
3451
3452 disabled_vif = vif;
3453
3dfd3a97 3454 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3455 break;
8ca151b5
JB		 3456 default:
3457 break;
3458 }
3459
7754ae79 3460 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3461 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3462
b08c1d97 3463out:
a11e144e 3464 mvmvif->phy_ctxt = NULL;
999609f1 3465 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3466}
3467
3468static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3469 struct ieee80211_vif *vif,
3470 struct ieee80211_chanctx_conf *ctx)
3471{
3472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3473
3474 mutex_lock(&mvm->mutex);
f0c97783 3475 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3476 mutex_unlock(&mvm->mutex);
3477}
3478
50cc9574
LC		 3479static int
3480iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3481 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3482{
b08c1d97
LC		 3483 int ret;
3484
b08c1d97 3485 mutex_lock(&mvm->mutex);
f0c97783 3486 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3487 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3488
3489 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3490 if (ret) {
3491 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3492 goto out_reassign;
3493 }
3494
f0c97783
LC		 3495 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3496 true);
b08c1d97
LC		 3497 if (ret) {
3498 IWL_ERR(mvm,
3499 "failed to assign new_ctx during channel switch\n");
3500 goto out_remove;
3501 }
3502
f697267f
AN		 3503 /* we don't support TDLS during DCM - can be caused by channel switch */
3504 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3505 iwl_mvm_teardown_tdls_peers(mvm);
3506
b08c1d97
LC		 3507 goto out;
3508
3509out_remove:
3510 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3511
3512out_reassign:
6fd1fb63 3513 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3514 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3515 goto out_restart;
3516 }
3517
6fd1fb63
LC		 3518 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3519 true)) {
b08c1d97
LC		 3520 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3521 goto out_restart;
3522 }
3523
3524 goto out;
3525
3526out_restart:
3527 /* things keep failing, better restart the hw */
3528 iwl_mvm_nic_restart(mvm, false);
3529
3530out:
3531 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3532
3533 return ret;
3534}
3535
48a256e8
LC		 3536static int
3537iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3538 struct ieee80211_vif_chanctx_switch *vifs)
3539{
3540 int ret;
3541
3542 mutex_lock(&mvm->mutex);
3543 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3544
3545 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3546 true);
3547 if (ret) {
3548 IWL_ERR(mvm,
3549 "failed to assign new_ctx during channel switch\n");
3550 goto out_reassign;
3551 }
3552
3553 goto out;
3554
3555out_reassign:
3556 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3557 true)) {
3558 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3559 goto out_restart;
3560 }
3561
3562 goto out;
3563
3564out_restart:
3565 /* things keep failing, better restart the hw */
3566 iwl_mvm_nic_restart(mvm, false);
3567
3568out:
3569 mutex_unlock(&mvm->mutex);
3570
3571 return ret;
3572}
3573
50cc9574
LC		 3574static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3575 struct ieee80211_vif_chanctx_switch *vifs,
3576 int n_vifs,
3577 enum ieee80211_chanctx_switch_mode mode)
3578{
3579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3580 int ret;
3581
3582 /* we only support a single-vif right now */
3583 if (n_vifs > 1)
3584 return -EOPNOTSUPP;
3585
3586 switch (mode) {
3587 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3588 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3589 break;
3590 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3591 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3592 break;
3593 default:
3594 ret = -EOPNOTSUPP;
3595 break;
3596 }
3597
b08c1d97
LC		 3598 return ret;
3599}
3600
8ca151b5
JB		 3601static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3602 struct ieee80211_sta *sta,
3603 bool set)
3604{
3605 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3606 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3607
3608 if (!mvm_sta || !mvm_sta->vif) {
3609 IWL_ERR(mvm, "Station is not associated to a vif\n");
3610 return -EINVAL;
3611 }
3612
3613 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3614}
3615
507cadf2
DS		 3616#ifdef CONFIG_NL80211_TESTMODE
3617static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3618 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3619 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3620 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3621};
3622
3623static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3624 struct ieee80211_vif *vif,
3625 void *data, int len)
3626{
3627 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3628 int err;
3629 u32 noa_duration;
3630
3631 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3632 if (err)
3633 return err;
3634
3635 if (!tb[IWL_MVM_TM_ATTR_CMD])
3636 return -EINVAL;
3637
3638 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3639 case IWL_MVM_TM_CMD_SET_NOA:
3640 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3641 !vif->bss_conf.enable_beacon ||
3642 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3643 return -EINVAL;
3644
3645 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3646 if (noa_duration >= vif->bss_conf.beacon_int)
3647 return -EINVAL;
3648
3649 mvm->noa_duration = noa_duration;
3650 mvm->noa_vif = vif;
3651
7754ae79 3652 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3653 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3654 /* must be associated client vif - ignore authorized */
3655 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3656 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3657 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3658 return -EINVAL;
3659
3660 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3661 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3662 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3663 }
3664
3665 return -EOPNOTSUPP;
3666}
3667
3668static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3669 struct ieee80211_vif *vif,
3670 void *data, int len)
3671{
3672 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3673 int err;
3674
3675 mutex_lock(&mvm->mutex);
3676 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3677 mutex_unlock(&mvm->mutex);
3678
3679 return err;
3680}
3681#endif
3682
622e3f9b
LC		 3683static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3684 struct ieee80211_vif *vif,
3685 struct ieee80211_channel_switch *chsw)
3686{
3687 /* By implementing this operation, we prevent mac80211 from
3688 * starting its own channel switch timer, so that we can call
3689 * ieee80211_chswitch_done() ourselves at the right time
3690 * (which is when the absence time event starts).
3691 */
3692
3693 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3694 "dummy channel switch op\n");
3695}
3696
f028905c
LC		 3697static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3698 struct ieee80211_vif *vif,
3699 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3700{
3701 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3702 struct ieee80211_vif *csa_vif;
f6c34820 3703 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3704 u32 apply_time;
f028905c 3705 int ret;
bd3398e2
AO		 3706
3707 mutex_lock(&mvm->mutex);
664322fa 3708
81d62d5a
JB		 3709 mvmvif->csa_failed = false;
3710
6b20d774 3711 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3712 chsw->chandef.center_freq1);
6b20d774 3713
21023b1e 3714 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3715
6b20d774
LC		 3716 switch (vif->type) {
3717 case NL80211_IFTYPE_AP:
3718 csa_vif =
3719 rcu_dereference_protected(mvm->csa_vif,
3720 lockdep_is_held(&mvm->mutex));
3721 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3722 "Another CSA is already in progress")) {
3723 ret = -EBUSY;
3724 goto out_unlock;
3725 }
3726
3727 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3728
7ef0aab6
AO		 3729 if (WARN_ONCE(mvmvif->csa_countdown,
3730 "Previous CSA countdown didn't complete")) {
3731 ret = -EBUSY;
3732 goto out_unlock;
3733 }
3734
6b20d774 3735 break;
dc88b4ba 3736 case NL80211_IFTYPE_STATION:
4500e133
LC		 3737 /* Schedule the time event to a bit before beacon 1,
3738 * to make sure we're in the new channel when the
3739 * GO/AP arrives.
3740 */
3741 apply_time = chsw->device_timestamp +
3742 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3743 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3744
3745 if (chsw->block_tx)
3746 iwl_mvm_csa_client_absent(mvm, vif);
3747
4500e133 3748 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3749 apply_time);
c6e0a3e0
LC		 3750 if (mvmvif->bf_data.bf_enabled) {
3751 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3752 if (ret)
3753 goto out_unlock;
3754 }
3755
dc88b4ba 3756 break;
6b20d774
LC		 3757 default:
3758 break;
3759 }
bd3398e2 3760
f6c34820
LC		 3761 mvmvif->ps_disabled = true;
3762
3763 ret = iwl_mvm_power_update_ps(mvm);
3764 if (ret)
3765 goto out_unlock;
f028905c 3766
e198f5e7
AN		 3767 /* we won't be on this channel any longer */
3768 iwl_mvm_teardown_tdls_peers(mvm);
3769
bd3398e2
AO		 3770out_unlock:
3771 mutex_unlock(&mvm->mutex);
f028905c
LC		 3772
3773 return ret;
bd3398e2
AO		 3774}
3775
f6c34820
LC		 3776static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3777 struct ieee80211_vif *vif)
3778{
3779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3780 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3781 int ret;
3782
3783 mutex_lock(&mvm->mutex);
3784
81d62d5a
JB		 3785 if (mvmvif->csa_failed) {
3786 mvmvif->csa_failed = false;
3787 ret = -EIO;
3788 goto out_unlock;
3789 }
3790
a57c688d
LC		 3791 if (vif->type == NL80211_IFTYPE_STATION) {
3792 struct iwl_mvm_sta *mvmsta;
3793
3794 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3795 mvmvif->ap_sta_id);
3796
3797 if (WARN_ON(!mvmsta)) {
3798 ret = -EIO;
3799 goto out_unlock;
3800 }
3801
3802 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3803
3804 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3805
3806 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3807 if (ret)
3808 goto out_unlock;
686e7fe1
LC		 3809
3810 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3811 }
3812
f6c34820
LC		 3813 mvmvif->ps_disabled = false;
3814
3815 ret = iwl_mvm_power_update_ps(mvm);
3816
a57c688d 3817out_unlock:
f6c34820
LC		 3818 mutex_unlock(&mvm->mutex);
3819
3820 return ret;
3821}
3822
c5b0e7c0
EG		 3823static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3824 struct ieee80211_vif *vif, u32 queues, bool drop)
3825{
3826 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3827 struct iwl_mvm_vif *mvmvif;
3828 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3829 struct ieee80211_sta *sta;
3830 int i;
3831 u32 msk = 0;
c5b0e7c0
EG		 3832
3833 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3834 return;
3835
3836 mutex_lock(&mvm->mutex);
3837 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3838
a0f6bf2a
AN		 3839 /* flush the AP-station and all TDLS peers */
3840 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3841 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3842 lockdep_is_held(&mvm->mutex));
3843 if (IS_ERR_OR_NULL(sta))
3844 continue;
3845
3846 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3847 if (mvmsta->vif != vif)
3848 continue;
3849
3850 /* make sure only TDLS peers or the AP are flushed */
3851 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3852
3853 msk |= mvmsta->tfd_queue_msk;
480acbce 3854 }
c5b0e7c0 3855
6d440b25
EG		 3856 if (drop) {
3857 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3858 IWL_ERR(mvm, "flush request fail\n");
3859 mutex_unlock(&mvm->mutex);
3860 } else {
3861 mutex_unlock(&mvm->mutex);
4e6c48e0 3862
6d440b25
EG		 3863 /* this can take a while, and we may need/want other operations
3864 * to succeed while doing this, so do it without the mutex held
3865 */
3866 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3867 }
c5b0e7c0
EG		 3868}
3869
91a8bcde
JB		 3870static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3871 struct survey_info *survey)
3872{
3873 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3874 int ret;
3875
3876 memset(survey, 0, sizeof(*survey));
3877
3878 /* only support global statistics right now */
3879 if (idx != 0)
3880 return -ENOENT;
3881
3882 if (!(mvm->fw->ucode_capa.capa[0] &
3883 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3884 return -ENOENT;
3885
3886 mutex_lock(&mvm->mutex);
3887
3888 if (mvm->ucode_loaded) {
33cef925 3889 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3890 if (ret)
3891 goto out;
3892 }
3893
3894 survey->filled = SURVEY_INFO_TIME |
3895 SURVEY_INFO_TIME_RX |
3896 SURVEY_INFO_TIME_TX |
3897 SURVEY_INFO_TIME_SCAN;
3898 survey->time = mvm->accu_radio_stats.on_time_rf +
3899 mvm->radio_stats.on_time_rf;
3900 do_div(survey->time, USEC_PER_MSEC);
3901
3902 survey->time_rx = mvm->accu_radio_stats.rx_time +
3903 mvm->radio_stats.rx_time;
3904 do_div(survey->time_rx, USEC_PER_MSEC);
3905
3906 survey->time_tx = mvm->accu_radio_stats.tx_time +
3907 mvm->radio_stats.tx_time;
3908 do_div(survey->time_tx, USEC_PER_MSEC);
3909
3910 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3911 mvm->radio_stats.on_time_scan;
3912 do_div(survey->time_scan, USEC_PER_MSEC);
3913
3914 out:
3915 mutex_unlock(&mvm->mutex);
3916 return ret;
3917}
3918
33cef925
JB		 3919static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3920 struct ieee80211_vif *vif,
3921 struct ieee80211_sta *sta,
3922 struct station_info *sinfo)
3923{
3924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3925 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3926 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3927
3928 if (!(mvm->fw->ucode_capa.capa[0] &
3929 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3930 return;
3931
3932 /* if beacon filtering isn't on mac80211 does it anyway */
3933 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3934 return;
3935
3936 if (!vif->bss_conf.assoc)
3937 return;
3938
3939 mutex_lock(&mvm->mutex);
3940
3941 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3942 goto unlock;
3943
3944 if (iwl_mvm_request_statistics(mvm, false))
3945 goto unlock;
3946
3947 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3948 mvmvif->beacon_stats.accu_num_beacons;
3949 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3950 if (mvmvif->beacon_stats.avg_signal) {
3951 /* firmware only reports a value after RXing a few beacons */
3952 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3953 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3954 }
3955 unlock:
3956 mutex_unlock(&mvm->mutex);
3957}
3958
d42f5350
EG		 3959static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3960 struct ieee80211_vif *vif,
3961 const struct ieee80211_event *event)
3962{
3963#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _str...) \
3964 do { \
3965 if ((_cnt) && --(_cnt)) \
3966 break; \
3967 snprintf(_buf, sizeof(_buf), ##_str); \
3968 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _buf, \
3969 sizeof(_buf)); \
3970 } while (0)
3971
3972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3973 struct iwl_fw_dbg_trigger_tlv *trig;
3974 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
3975 char buf[32];
3976
3977 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3978 return;
3979
3980 if (event->u.mlme.status == MLME_SUCCESS)
3981 return;
3982
3983 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3984 trig_mlme = (void *)trig->data;
3985 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3986 return;
3987
3988 memset(buf, 0, sizeof(buf));
3989
3990 if (event->u.mlme.data == ASSOC_EVENT) {
3991 if (event->u.mlme.status == MLME_DENIED)
3992 CHECK_MLME_TRIGGER(mvm, trig, buf,
3993 trig_mlme->stop_assoc_denied,
3994 "DENIED ASSOC: reason %d",
3995 event->u.mlme.reason);
3996 else if (event->u.mlme.status == MLME_TIMEOUT)
3997 CHECK_MLME_TRIGGER(mvm, trig, buf,
3998 trig_mlme->stop_assoc_timeout,
3999 "ASSOC TIMEOUT");
4000 } else if (event->u.mlme.data == AUTH_EVENT) {
4001 if (event->u.mlme.status == MLME_DENIED)
4002 CHECK_MLME_TRIGGER(mvm, trig, buf,
4003 trig_mlme->stop_auth_denied,
4004 "DENIED AUTH: reason %d",
4005 event->u.mlme.reason);
4006 else if (event->u.mlme.status == MLME_TIMEOUT)
4007 CHECK_MLME_TRIGGER(mvm, trig, buf,
4008 trig_mlme->stop_auth_timeout,
4009 "AUTH TIMEOUT");
4010 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4011 CHECK_MLME_TRIGGER(mvm, trig, buf,
4012 trig_mlme->stop_rx_deauth,
4013 "DEAUTH RX %d", event->u.mlme.reason);
4014 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4015 CHECK_MLME_TRIGGER(mvm, trig, buf,
4016 trig_mlme->stop_tx_deauth,
4017 "DEAUTH TX %d", event->u.mlme.reason);
4018 }
4019#undef CHECK_MLME_TRIGGER
4020}
4021
e5209263 4022const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4023 .tx = iwl_mvm_mac_tx,
4024 .ampdu_action = iwl_mvm_mac_ampdu_action,
4025 .start = iwl_mvm_mac_start,
cf2c92d8 4026 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4027 .stop = iwl_mvm_mac_stop,
4028 .add_interface = iwl_mvm_mac_add_interface,
4029 .remove_interface = iwl_mvm_mac_remove_interface,
4030 .config = iwl_mvm_mac_config,
e59647ea 4031 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4032 .configure_filter = iwl_mvm_configure_filter,
4033 .bss_info_changed = iwl_mvm_bss_info_changed,
4034 .hw_scan = iwl_mvm_mac_hw_scan,
4035 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4036 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4037 .sta_state = iwl_mvm_mac_sta_state,
4038 .sta_notify = iwl_mvm_mac_sta_notify,
4039 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4040 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4041 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4042 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4043 .conf_tx = iwl_mvm_mac_conf_tx,
4044 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4045 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4046 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4047 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4048 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4049 .set_key = iwl_mvm_mac_set_key,
4050 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4051 .remain_on_channel = iwl_mvm_roc,
4052 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4053 .add_chanctx = iwl_mvm_add_chanctx,
4054 .remove_chanctx = iwl_mvm_remove_chanctx,
4055 .change_chanctx = iwl_mvm_change_chanctx,
4056 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4057 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4058 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4059
5023d966
JB		 4060 .start_ap = iwl_mvm_start_ap_ibss,
4061 .stop_ap = iwl_mvm_stop_ap_ibss,
4062 .join_ibss = iwl_mvm_start_ap_ibss,
4063 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4064
4065 .set_tim = iwl_mvm_set_tim,
4066
622e3f9b 4067 .channel_switch = iwl_mvm_channel_switch,
f028905c 4068 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4069 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4070
1d3c3f63
AN		 4071 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4072 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4073 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4074
d42f5350
EG		 4075 .event_callback = iwl_mvm_mac_event_callback,
4076
507cadf2
DS		 4077 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4078
8ca151b5
JB		 4079#ifdef CONFIG_PM_SLEEP
4080 /* look at d3.c */
4081 .suspend = iwl_mvm_suspend,
4082 .resume = iwl_mvm_resume,
4083 .set_wakeup = iwl_mvm_set_wakeup,
4084 .set_rekey_data = iwl_mvm_set_rekey_data,
4085#if IS_ENABLED(CONFIG_IPV6)
4086 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4087#endif
4088 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4089#endif
91a8bcde 4090 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4091 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4092};
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