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iwlwifi: mvm: add 9000-series RX API
[thirdparty/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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>
2f89a5d7 73#include <linux/time.h>
8ca151b5 74#include <net/mac80211.h>
7b1dd048 75#include <net/ieee80211_radiotap.h>
f0c2646a 76#include <net/tcp.h>
8ca151b5
JB		 77
78#include "iwl-op-mode.h"
79#include "iwl-io.h"
80#include "mvm.h"
81#include "sta.h"
82#include "time-event.h"
83#include "iwl-eeprom-parse.h"
8ca151b5 84#include "iwl-phy-db.h"
507cadf2 85#include "testmode.h"
655e6d6d
EG		 86#include "iwl-fw-error-dump.h"
87#include "iwl-prph.h"
363039be 88#include "iwl-csr.h"
88931cc9 89#include "iwl-nvm-parse.h"
2f89a5d7 90#include "fw-dbg.h"
8ca151b5
JB		 91
92static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
93 {
94 .max = 1,
8eb38710 95 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 96 },
3c15a0fb
JB		 97 {
98 .max = 1,
8eb38710
IP		 99 .types = BIT(NL80211_IFTYPE_AP) |
100 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 101 BIT(NL80211_IFTYPE_P2P_GO),
102 },
103 {
104 .max = 1,
105 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
106 },
8ca151b5
JB		 107};
108
109static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
110 {
2624a5ca 111 .num_different_channels = 2,
8ca151b5
JB		 112 .max_interfaces = 3,
113 .limits = iwl_mvm_limits,
114 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
115 },
116};
117
f0c2646a
JB		 118#ifdef CONFIG_PM_SLEEP
119static const struct nl80211_wowlan_tcp_data_token_feature
120iwl_mvm_wowlan_tcp_token_feature = {
121 .min_len = 0,
122 .max_len = 255,
123 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
124};
125
126static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
127 .tok = &iwl_mvm_wowlan_tcp_token_feature,
128 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
129 sizeof(struct ethhdr) -
130 sizeof(struct iphdr) -
131 sizeof(struct tcphdr),
132 .data_interval_max = 65535, /* __le16 in API */
133 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
134 sizeof(struct ethhdr) -
135 sizeof(struct iphdr) -
136 sizeof(struct tcphdr),
137 .seq = true,
138};
139#endif
140
77736923 141#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 142/*
143 * Use the reserved field to indicate magic values.
144 * these values will only be used internally by the driver,
145 * and won't make it to the fw (reserved will be 0).
146 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
147 * be the vif's ip address. in case there is not a single
148 * ip address (0, or more than 1), this attribute will
149 * be skipped.
150 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
151 * the LSB bytes of the vif's mac address
152 */
153enum {
154 BC_FILTER_MAGIC_NONE = 0,
155 BC_FILTER_MAGIC_IP,
156 BC_FILTER_MAGIC_MAC,
157};
158
77736923
EP		 159static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
160 {
161 /* arp */
162 .discard = 0,
163 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
164 .attrs = {
165 {
166 /* frame type - arp, hw type - ethernet */
167 .offset_type =
168 BCAST_FILTER_OFFSET_PAYLOAD_START,
169 .offset = sizeof(rfc1042_header),
170 .val = cpu_to_be32(0x08060001),
171 .mask = cpu_to_be32(0xffffffff),
172 },
2ee8f021
EP		 173 {
174 /* arp dest ip */
175 .offset_type =
176 BCAST_FILTER_OFFSET_PAYLOAD_START,
177 .offset = sizeof(rfc1042_header) + 2 +
178 sizeof(struct arphdr) +
179 ETH_ALEN + sizeof(__be32) +
180 ETH_ALEN,
181 .mask = cpu_to_be32(0xffffffff),
182 /* mark it as special field */
183 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
184 },
185 },
186 },
187 {
188 /* dhcp offer bcast */
189 .discard = 0,
190 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
191 .attrs = {
192 {
193 /* udp dest port - 68 (bootp client)*/
194 .offset_type = BCAST_FILTER_OFFSET_IP_END,
195 .offset = offsetof(struct udphdr, dest),
196 .val = cpu_to_be32(0x00440000),
197 .mask = cpu_to_be32(0xffff0000),
198 },
199 {
200 /* dhcp - lsb bytes of client hw address */
201 .offset_type = BCAST_FILTER_OFFSET_IP_END,
202 .offset = 38,
203 .mask = cpu_to_be32(0xffffffff),
204 /* mark it as special field */
205 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
206 },
77736923
EP		 207 },
208 },
209 /* last filter must be empty */
210 {},
211};
212#endif
213
7498cf4c
EP		 214void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
215{
7bb426ea 216 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 217 return;
218
219 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 220 spin_lock_bh(&mvm->refs_lock);
221 mvm->refs[ref_type]++;
222 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 223 iwl_trans_ref(mvm->trans);
224}
225
226void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
227{
7bb426ea 228 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 229 return;
230
231 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 232 spin_lock_bh(&mvm->refs_lock);
233 WARN_ON(!mvm->refs[ref_type]--);
234 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 235 iwl_trans_unref(mvm->trans);
236}
237
576eeee9
EP		 238static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
239 enum iwl_mvm_ref_type except_ref)
7498cf4c 240{
576eeee9 241 int i, j;
7498cf4c 242
7bb426ea 243 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 244 return;
245
576eeee9
EP		 246 spin_lock_bh(&mvm->refs_lock);
247 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
248 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 249 continue;
250
576eeee9
EP		 251 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
252 i, mvm->refs[i]);
253 for (j = 0; j < mvm->refs[i]; j++)
254 iwl_trans_unref(mvm->trans);
255 mvm->refs[i] = 0;
7498cf4c 256 }
576eeee9 257 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 258}
259
f4cf8680
EP		 260bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
261{
262 int i;
263 bool taken = false;
264
265 if (!iwl_mvm_is_d0i3_supported(mvm))
266 return true;
267
268 spin_lock_bh(&mvm->refs_lock);
269 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
270 if (mvm->refs[i]) {
271 taken = true;
272 break;
273 }
274 }
275 spin_unlock_bh(&mvm->refs_lock);
276
277 return taken;
278}
279
576eeee9 280int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 281{
282 iwl_mvm_ref(mvm, ref_type);
283
284 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
285 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
286 HZ)) {
287 WARN_ON_ONCE(1);
288 iwl_mvm_unref(mvm, ref_type);
289 return -EIO;
290 }
291
292 return 0;
293}
294
fe0f2de3
IP		 295static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
296{
297 int i;
298
299 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
300 for (i = 0; i < NUM_PHY_CTX; i++) {
301 mvm->phy_ctxts[i].id = i;
302 mvm->phy_ctxts[i].ref = 0;
303 }
304}
305
88931cc9 306struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 307 const char *alpha2,
47c8b154
JD		 308 enum iwl_mcc_source src_id,
309 bool *changed)
88931cc9
AN		 310{
311 struct ieee80211_regdomain *regd = NULL;
312 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
314 struct iwl_mcc_update_resp *resp;
315
316 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
317
8ba2d7a1 318 lockdep_assert_held(&mvm->mutex);
88931cc9 319
8ba2d7a1 320 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 321 if (IS_ERR_OR_NULL(resp)) {
322 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 323 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 324 goto out;
88931cc9
AN		 325 }
326
47c8b154
JD		 327 if (changed)
328 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
329
162ee3c9 330 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 331 __le32_to_cpu(resp->n_channels),
332 resp->channels,
333 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 334 /* Store the return source id */
335 src_id = resp->source_id;
88931cc9
AN		 336 kfree(resp);
337 if (IS_ERR_OR_NULL(regd)) {
338 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 339 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 340 goto out;
88931cc9
AN		 341 }
342
8ba2d7a1
EH		 343 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
344 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 345 mvm->lar_regdom_set = true;
8ba2d7a1 346 mvm->mcc_src = src_id;
88931cc9 347
8ba2d7a1 348out:
88931cc9
AN		 349 return regd;
350}
351
47c8b154
JD		 352void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
353{
354 bool changed;
355 struct ieee80211_regdomain *regd;
356
357 if (!iwl_mvm_is_lar_supported(mvm))
358 return;
359
360 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
361 if (!IS_ERR_OR_NULL(regd)) {
362 /* only update the regulatory core if changed */
363 if (changed)
364 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
365
366 kfree(regd);
367 }
368}
369
370struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
371 bool *changed)
8ba2d7a1
EH		 372{
373 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
374 iwl_mvm_is_wifi_mcc_supported(mvm) ?
375 MCC_SOURCE_GET_CURRENT :
47c8b154 376 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 377}
378
379int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
380{
381 enum iwl_mcc_source used_src;
382 struct ieee80211_regdomain *regd;
b6e160ab
AN		 383 int ret;
384 bool changed;
8ba2d7a1
EH		 385 const struct ieee80211_regdomain *r =
386 rtnl_dereference(mvm->hw->wiphy->regd);
387
388 if (!r)
b6e160ab 389 return -ENOENT;
8ba2d7a1
EH		 390
391 /* save the last source in case we overwrite it below */
392 used_src = mvm->mcc_src;
393 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
394 /* Notify the firmware we support wifi location updates */
47c8b154 395 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 396 if (!IS_ERR_OR_NULL(regd))
397 kfree(regd);
398 }
399
400 /* Now set our last stored MCC and source */
b6e160ab
AN		 401 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
402 &changed);
8ba2d7a1
EH		 403 if (IS_ERR_OR_NULL(regd))
404 return -EIO;
405
b6e160ab
AN		 406 /* update cfg80211 if the regdomain was changed */
407 if (changed)
408 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
409 else
410 ret = 0;
8ba2d7a1 411
b6e160ab
AN		 412 kfree(regd);
413 return ret;
8ba2d7a1
EH		 414}
415
8ca151b5
JB		 416int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
417{
418 struct ieee80211_hw *hw = mvm->hw;
831e85f3 419 int num_mac, ret, i;
5f4c02e2
JB		 420 static const u32 mvm_ciphers[] = {
421 WLAN_CIPHER_SUITE_WEP40,
422 WLAN_CIPHER_SUITE_WEP104,
423 WLAN_CIPHER_SUITE_TKIP,
424 WLAN_CIPHER_SUITE_CCMP,
425 };
8ca151b5
JB		 426
427 /* Tell mac80211 our characteristics */
30686bf7
JB		 428 ieee80211_hw_set(hw, SIGNAL_DBM);
429 ieee80211_hw_set(hw, SPECTRUM_MGMT);
430 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
431 ieee80211_hw_set(hw, QUEUE_CONTROL);
432 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
433 ieee80211_hw_set(hw, SUPPORTS_PS);
434 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
435 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
436 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
437 ieee80211_hw_set(hw, CONNECTION_MONITOR);
438 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
439 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
440 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
8ca151b5 441
19e737c9 442 hw->queues = mvm->first_agg_queue;
398e8c6c 443 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 444 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
445 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 446 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
447 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 448 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 449 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
450 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 451
5f4c02e2
JB		 452 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
453 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
454 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
455 hw->wiphy->cipher_suites = mvm->ciphers;
456
8ca151b5
JB		 457 /*
458 * Enable 11w if advertised by firmware and software crypto
459 * is not enabled (as the firmware will interpret some mgmt
460 * packets, so enabling it with software crypto isn't safe)
461 */
462 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
5f4c02e2 463 !iwlwifi_mod_params.sw_crypto) {
30686bf7 464 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 465 mvm->ciphers[hw->wiphy->n_cipher_suites] =
466 WLAN_CIPHER_SUITE_AES_CMAC;
467 hw->wiphy->n_cipher_suites++;
468 }
469
470 /* currently FW API supports only one optional cipher scheme */
471 if (mvm->fw->cs[0].cipher) {
472 mvm->hw->n_cipher_schemes = 1;
473 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
474 mvm->ciphers[hw->wiphy->n_cipher_suites] =
475 mvm->fw->cs[0].cipher;
476 hw->wiphy->n_cipher_suites++;
477 }
8ca151b5 478
30686bf7 479 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 480 hw->wiphy->features |=
481 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 482 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
483 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 484
8ca151b5
JB		 485 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
486 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 487 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 488
489 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 490 BIT(NL80211_IFTYPE_P2P_CLIENT) |
491 BIT(NL80211_IFTYPE_AP) |
492 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 493 BIT(NL80211_IFTYPE_P2P_DEVICE) |
494 BIT(NL80211_IFTYPE_ADHOC);
5023d966 495
a2f73b6c 496 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 497 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
498 if (iwl_mvm_is_lar_supported(mvm))
499 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
500 else
501 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
502 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 503
3e56eadf
JB		 504 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
505 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
506
94bbed72 507 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 508
8ca151b5
JB		 509 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
510 hw->wiphy->n_iface_combinations =
511 ARRAY_SIZE(iwl_mvm_iface_combinations);
512
c451e6d4 513 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 514 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 515 /* we can compensate an offset of up to 3 channels = 15 MHz */
516 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 517
518 /* Extract MAC address */
519 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
520 hw->wiphy->addresses = mvm->addresses;
521 hw->wiphy->n_addresses = 1;
831e85f3
IP		 522
523 /* Extract additional MAC addresses if available */
524 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
525 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
526
527 for (i = 1; i < num_mac; i++) {
528 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 529 ETH_ALEN);
831e85f3 530 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 531 hw->wiphy->n_addresses++;
532 }
533
fe0f2de3
IP		 534 iwl_mvm_reset_phy_ctxts(mvm);
535
999d2568 536 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 537
8ca151b5
JB		 538 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
539
c7d42480 540 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 541 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
542 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
543
859d914c 544 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 545 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
546 else
547 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
548
8ca151b5
JB		 549 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
550 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
551 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 552 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 553 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
554 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
555
859d914c
JB		 556 if (fw_has_capa(&mvm->fw->ucode_capa,
557 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
558 fw_has_api(&mvm->fw->ucode_capa,
559 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 560 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
561 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
562 }
563
8ca151b5
JB		 564 hw->wiphy->hw_version = mvm->trans->hw_id;
565
ade50652 566 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 567 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
568 else
569 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
570
9954b37c
EG		 571 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
572 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
573 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
574 /* we create the 802.11 header and zero length SSID IE. */
575 hw->wiphy->max_sched_scan_ie_len =
576 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 577 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
578 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
579
580 /*
581 * the firmware uses u8 for num of iterations, but 0xff is saved for
582 * infinite loop, so the maximum number of iterations is actually 254.
583 */
584 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 585
8ca151b5 586 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 587 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 588 NL80211_FEATURE_P2P_GO_OPPPS |
589 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 590 NL80211_FEATURE_STATIC_SMPS |
591 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 592
859d914c
JB		 593 if (fw_has_capa(&mvm->fw->ucode_capa,
594 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 595 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 596 if (fw_has_capa(&mvm->fw->ucode_capa,
597 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 598 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 599
859d914c
JB		 600 if (fw_has_capa(&mvm->fw->ucode_capa,
601 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 602 hw->wiphy->features |=
603 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
604
859d914c
JB		 605 if (fw_has_capa(&mvm->fw->ucode_capa,
606 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 607 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
608
8ca151b5
JB		 609 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
610
611#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 612 if (iwl_mvm_is_d0i3_supported(mvm) &&
613 device_can_wakeup(mvm->trans->dev)) {
614 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
615 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 616 }
617
618 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 619 mvm->trans->ops->d3_suspend &&
620 mvm->trans->ops->d3_resume &&
621 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 622 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
623 WIPHY_WOWLAN_DISCONNECT |
624 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
625 WIPHY_WOWLAN_RFKILL_RELEASE |
626 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 627 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 628 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
629 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
630 WIPHY_WOWLAN_4WAY_HANDSHAKE;
631
632 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
633 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
634 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 635 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 636 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
637 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 638 }
639#endif
640
77736923
EP		 641#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
642 /* assign default bcast filtering configuration */
643 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
644#endif
645
8ca151b5
JB		 646 ret = iwl_mvm_leds_init(mvm);
647 if (ret)
648 return ret;
649
859d914c
JB		 650 if (fw_has_capa(&mvm->fw->ucode_capa,
651 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 652 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
653 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 654 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 655 }
656
859d914c
JB		 657 if (fw_has_capa(&mvm->fw->ucode_capa,
658 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 659 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
660 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
661 }
662
93190fb0
AA		 663 hw->netdev_features |= mvm->cfg->features;
664 if (!iwl_mvm_is_csum_supported(mvm))
665 hw->netdev_features &= ~NETIF_F_RXCSUM;
666
b7327d89
EG		 667 ret = ieee80211_register_hw(mvm->hw);
668 if (ret)
669 iwl_mvm_leds_exit(mvm);
670
671 return ret;
8ca151b5
JB		 672}
673
b2492501
AN		 674static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
675 struct ieee80211_sta *sta,
676 struct sk_buff *skb)
677{
678 struct iwl_mvm_sta *mvmsta;
679 bool defer = false;
680
681 /*
682 * double check the IN_D0I3 flag both before and after
683 * taking the spinlock, in order to prevent taking
684 * the spinlock when not needed.
685 */
686 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
687 return false;
688
689 spin_lock(&mvm->d0i3_tx_lock);
690 /*
691 * testing the flag again ensures the skb dequeue
692 * loop (on d0i3 exit) hasn't run yet.
693 */
694 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
695 goto out;
696
697 mvmsta = iwl_mvm_sta_from_mac80211(sta);
698 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
699 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
700 goto out;
701
702 __skb_queue_tail(&mvm->d0i3_tx, skb);
703 ieee80211_stop_queues(mvm->hw);
704
705 /* trigger wakeup */
706 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
707 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
708
709 defer = true;
710out:
711 spin_unlock(&mvm->d0i3_tx_lock);
712 return defer;
713}
714
8ca151b5
JB		 715static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
716 struct ieee80211_tx_control *control,
717 struct sk_buff *skb)
718{
719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 720 struct ieee80211_sta *sta = control->sta;
721 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
722 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 723
9ee718aa
EL		 724 if (iwl_mvm_is_radio_killed(mvm)) {
725 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 726 goto drop;
727 }
728
398e8c6c 729 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 730 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
731 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 732 goto drop;
733
3e56eadf
JB		 734 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
735 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
736 ieee80211_is_mgmt(hdr->frame_control) &&
737 !ieee80211_is_deauth(hdr->frame_control) &&
738 !ieee80211_is_disassoc(hdr->frame_control) &&
739 !ieee80211_is_action(hdr->frame_control)))
740 sta = NULL;
741
742 if (sta) {
b2492501
AN		 743 if (iwl_mvm_defer_tx(mvm, sta, skb))
744 return;
3e56eadf 745 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 746 goto drop;
747 return;
748 }
749
750 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
751 goto drop;
752 return;
753 drop:
754 ieee80211_free_txskb(hw, skb);
755}
756
205e2210
EG		 757static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
758{
759 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
760 return false;
761 return true;
762}
763
764static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
765{
766 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
767 return false;
768 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
769 return true;
770
771 /* enabled by default */
772 return true;
773}
774
4203263d
EG		 775#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
776 do { \
777 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
778 break; \
779 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
780 } while (0)
781
782static void
783iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
784 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
785 enum ieee80211_ampdu_mlme_action action)
786{
787 struct iwl_fw_dbg_trigger_tlv *trig;
788 struct iwl_fw_dbg_trigger_ba *ba_trig;
789
790 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
791 return;
792
793 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
794 ba_trig = (void *)trig->data;
795
796 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
797 return;
798
799 switch (action) {
800 case IEEE80211_AMPDU_TX_OPERATIONAL: {
801 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
802 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
803
804 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
805 "TX AGG START: MAC %pM tid %d ssn %d\n",
806 sta->addr, tid, tid_data->ssn);
807 break;
808 }
809 case IEEE80211_AMPDU_TX_STOP_CONT:
810 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
811 "TX AGG STOP: MAC %pM tid %d\n",
812 sta->addr, tid);
813 break;
814 case IEEE80211_AMPDU_RX_START:
815 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
816 "RX AGG START: MAC %pM tid %d ssn %d\n",
817 sta->addr, tid, rx_ba_ssn);
818 break;
819 case IEEE80211_AMPDU_RX_STOP:
820 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
821 "RX AGG STOP: MAC %pM tid %d\n",
822 sta->addr, tid);
823 break;
824 default:
825 break;
826 }
827}
828
8ca151b5
JB		 829static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
830 struct ieee80211_vif *vif,
831 enum ieee80211_ampdu_mlme_action action,
832 struct ieee80211_sta *sta, u16 tid,
e3abc8ff 833 u16 *ssn, u8 buf_size, bool amsdu)
8ca151b5
JB		 834{
835 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
836 int ret;
b2492501 837 bool tx_agg_ref = false;
8ca151b5
JB		 838
839 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
840 sta->addr, tid, action);
841
842 if (!(mvm->nvm_data->sku_cap_11n_enable))
843 return -EACCES;
844
b2492501 845 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 846 switch (action) {
847 case IEEE80211_AMPDU_TX_START:
848 case IEEE80211_AMPDU_TX_STOP_CONT:
849 case IEEE80211_AMPDU_TX_STOP_FLUSH:
850 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
851 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 852 /*
9256c205
EP		 853 * for tx start, wait synchronously until D0i3 exit to
854 * get the correct sequence number for the tid.
855 * additionally, some other ampdu actions use direct
856 * target access, which is not handled automatically
857 * by the trans layer (unlike commands), so wait for
858 * d0i3 exit in these cases as well.
b2492501 859 */
d40fc489
GG		 860 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
861 if (ret)
862 return ret;
863
864 tx_agg_ref = true;
9256c205
EP		 865 break;
866 default:
867 break;
b2492501
AN		 868 }
869
8ca151b5
JB		 870 mutex_lock(&mvm->mutex);
871
872 switch (action) {
873 case IEEE80211_AMPDU_RX_START:
205e2210 874 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 875 ret = -EINVAL;
876 break;
877 }
878 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
879 break;
880 case IEEE80211_AMPDU_RX_STOP:
881 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
882 break;
883 case IEEE80211_AMPDU_TX_START:
205e2210 884 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 885 ret = -EINVAL;
886 break;
887 }
8ca151b5
JB		 888 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
889 break;
890 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 891 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
892 break;
8ca151b5
JB		 893 case IEEE80211_AMPDU_TX_STOP_FLUSH:
894 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 895 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 896 break;
897 case IEEE80211_AMPDU_TX_OPERATIONAL:
898 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
899 break;
900 default:
901 WARN_ON_ONCE(1);
902 ret = -EINVAL;
903 break;
904 }
4203263d
EG		 905
906 if (!ret) {
907 u16 rx_ba_ssn = 0;
908
909 if (action == IEEE80211_AMPDU_RX_START)
910 rx_ba_ssn = *ssn;
911
912 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
913 rx_ba_ssn, action);
914 }
8ca151b5
JB		 915 mutex_unlock(&mvm->mutex);
916
b2492501
AN		 917 /*
918 * If the tid is marked as started, we won't use it for offloaded
919 * traffic on the next D0i3 entry. It's safe to unref.
920 */
921 if (tx_agg_ref)
922 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
923
8ca151b5
JB		 924 return ret;
925}
926
927static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
928 struct ieee80211_vif *vif)
929{
930 struct iwl_mvm *mvm = data;
931 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
932
933 mvmvif->uploaded = false;
934 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
935
8ca151b5
JB		 936 spin_lock_bh(&mvm->time_event_lock);
937 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
938 spin_unlock_bh(&mvm->time_event_lock);
939
fe0f2de3 940 mvmvif->phy_ctxt = NULL;
8a275bad 941 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 942}
943
944static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
945{
58629d9d
JB		 946 /* clear the D3 reconfig, we only need it to avoid dumping a
947 * firmware coredump on reconfiguration, we shouldn't do that
948 * on D3->D0 transition
949 */
b6eaa45a
EG		 950 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
951 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 952 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 953 }
1bd3cbc1 954
744cb695
EP		 955 /* cleanup all stale references (scan, roc), but keep the
956 * ucode_down ref until reconfig is complete
957 */
958 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
959
8ca151b5 960 iwl_trans_stop_device(mvm->trans);
8ca151b5 961
9af91f46 962 mvm->scan_status = 0;
b1873300 963 mvm->ps_disabled = false;
31b8b343 964 mvm->calibrating = false;
8ca151b5
JB		 965
966 /* just in case one was running */
967 ieee80211_remain_on_channel_expired(mvm->hw);
968
737719fe
AN		 969 /*
970 * cleanup all interfaces, even inactive ones, as some might have
971 * gone down during the HW restart
972 */
973 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 974
fe0f2de3 975 mvm->p2p_device_vif = NULL;
37577fe2 976 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 977
978 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 979 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 980 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 981 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
982 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
983 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
984 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
985 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
986 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 987
988 ieee80211_wake_queues(mvm->hw);
989
228670b2
EP		 990 /* clear any stale d0i3 state */
991 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
992
8ca151b5 993 mvm->vif_count = 0;
113a0447 994 mvm->rx_ba_sessions = 0;
d2709ad7 995 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 996
997 /* keep statistics ticking */
998 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 999}
1000
a0a09243 1001int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1002{
8ca151b5
JB		 1003 int ret;
1004
a0a09243 1005 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1006
1007 /* Clean up some internal and mac80211 state on restart */
1008 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1009 iwl_mvm_restart_cleanup(mvm);
1010
1011 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1012
1013 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1014 /* Something went wrong - we need to finish some cleanup
1015 * that normally iwl_mvm_mac_restart_complete() below
1016 * would do.
1017 */
1018 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1019 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1020 }
1021
a0a09243
LC		 1022 return ret;
1023}
1024
1025static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1026{
1027 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1028 int ret;
1029
37948fcf
EP		 1030 /* Some hw restart cleanups must not hold the mutex */
1031 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1032 /*
1033 * Make sure we are out of d0i3. This is needed
1034 * to make sure the reference accounting is correct
1035 * (and there is no stale d0i3_exit_work).
1036 */
1037 wait_event_timeout(mvm->d0i3_exit_waitq,
1038 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1039 &mvm->status),
1040 HZ);
1041 }
1042
a0a09243
LC		 1043 mutex_lock(&mvm->mutex);
1044 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1045 mutex_unlock(&mvm->mutex);
1046
1047 return ret;
1048}
1049
cf2c92d8 1050static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1051{
8ca151b5
JB		 1052 int ret;
1053
1054 mutex_lock(&mvm->mutex);
1055
1056 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1057 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1058 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1059 if (ret)
1060 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1061 ret);
1062
7498cf4c
EP		 1063 /* allow transport/FW low power modes */
1064 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1065
cbd2ae2d
AN		 1066 /*
1067 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1068 * of packets the FW sent out, so we must reconnect.
1069 */
1070 iwl_mvm_teardown_tdls_peers(mvm);
1071
8ca151b5
JB		 1072 mutex_unlock(&mvm->mutex);
1073}
1074
088070a2
EP		 1075static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1076{
088070a2
EP		 1077 if (!iwl_mvm_is_d0i3_supported(mvm))
1078 return;
1079
6735943f
EP		 1080 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1081 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1082 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1083 &mvm->status),
1084 HZ))
1085 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1086}
1087
cf2c92d8
EP		 1088static void
1089iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1090 enum ieee80211_reconfig_type reconfig_type)
1091{
1092 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1093
1094 switch (reconfig_type) {
1095 case IEEE80211_RECONFIG_TYPE_RESTART:
1096 iwl_mvm_restart_complete(mvm);
1097 break;
1098 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1099 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1100 break;
1101 }
1102}
1103
a0a09243 1104void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1105{
a0a09243 1106 lockdep_assert_held(&mvm->mutex);
7498cf4c 1107
91a8bcde
JB		 1108 /* firmware counters are obviously reset now, but we shouldn't
1109 * partially track so also clear the fw_reset_accu counters.
1110 */
1111 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1112
0a79a0c0
EP		 1113 /*
1114 * Disallow low power states when the FW is down by taking
1115 * the UCODE_DOWN ref. in case of ongoing hw restart the
1116 * ref is already taken, so don't take it again.
1117 */
1118 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1119 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1120
8ca151b5
JB		 1121 /* async_handlers_wk is now blocked */
1122
1123 /*
1124 * The work item could be running or queued if the
1125 * ROC time event stops just as we get here.
1126 */
c779273b 1127 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1128
1129 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1130
1131 iwl_mvm_async_handlers_purge(mvm);
1132 /* async_handlers_list is empty and will stay empty: HW is stopped */
1133
1134 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1135 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1136
0a79a0c0
EP		 1137 /*
1138 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1139 * won't be called in this case).
8b2b9fbf
AN		 1140 * But make sure to cleanup interfaces that have gone down before/during
1141 * HW restart was requested.
0a79a0c0 1142 */
8b2b9fbf
AN		 1143 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1144 ieee80211_iterate_interfaces(mvm->hw, 0,
1145 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1146
963221be
AB		 1147 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1148 * make sure there's nothing left there and warn if any is found.
1149 */
859d914c 1150 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1151 int i;
1152
507e4cda 1153 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1154 if (WARN_ONCE(mvm->scan_uid_status[i],
1155 "UMAC scan UID %d status was not cleaned\n",
1156 i))
1157 mvm->scan_uid_status[i] = 0;
963221be
AB		 1158 }
1159 }
1160
bc44886d 1161 mvm->ucode_loaded = false;
a0a09243 1162}
bc44886d 1163
a0a09243
LC		 1164static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1165{
1166 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1167
1168 flush_work(&mvm->d0i3_exit_work);
1169 flush_work(&mvm->async_handlers_wk);
d2709ad7 1170 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1171 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1172
1173 mutex_lock(&mvm->mutex);
1174 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1175 mutex_unlock(&mvm->mutex);
1176
1177 /*
1178 * The worker might have been waiting for the mutex, let it run and
1179 * discover that its list is now empty.
1180 */
1181 cancel_work_sync(&mvm->async_handlers_wk);
1182}
1183
fe0f2de3
IP		 1184static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1185{
1186 u16 i;
1187
1188 lockdep_assert_held(&mvm->mutex);
1189
1190 for (i = 0; i < NUM_PHY_CTX; i++)
1191 if (!mvm->phy_ctxts[i].ref)
1192 return &mvm->phy_ctxts[i];
1193
1194 IWL_ERR(mvm, "No available PHY context\n");
1195 return NULL;
1196}
1197
d44c3fe6
AA		 1198static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1199 s16 tx_power)
1200{
1201 struct iwl_dev_tx_power_cmd cmd = {
da03f029
JB		 1202 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1203 .v2.mac_context_id =
d44c3fe6 1204 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
da03f029 1205 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1206 };
da03f029 1207 int len = sizeof(cmd);
d44c3fe6 1208
d44c3fe6 1209 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
da03f029 1210 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1211
da03f029
JB		 1212 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1213 len = sizeof(cmd.v2);
1214
1215 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1216}
1217
8ca151b5
JB		 1218static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1219 struct ieee80211_vif *vif)
1220{
1221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1222 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1223 int ret;
1224
aa5e1832
EG		 1225 mvmvif->mvm = mvm;
1226
d40fc489
GG		 1227 /*
1228 * make sure D0i3 exit is completed, otherwise a target access
1229 * during tx queue configuration could be done when still in
1230 * D0i3 state.
1231 */
1232 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1233 if (ret)
1234 return ret;
1235
8ca151b5
JB		 1236 /*
1237 * Not much to do here. The stack will not allow interface
1238 * types or combinations that we didn't advertise, so we
1239 * don't really have to check the types.
1240 */
1241
1242 mutex_lock(&mvm->mutex);
1243
33cef925
JB		 1244 /* make sure that beacon statistics don't go backwards with FW reset */
1245 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1246 mvmvif->beacon_stats.accu_num_beacons +=
1247 mvmvif->beacon_stats.num_beacons;
1248
e89044d7 1249 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1250 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1251 if (ret)
1252 goto out_unlock;
1253
1c2abf72 1254 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1255 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1256 mvm->vif_count++;
ea183d02 1257
8ca151b5
JB		 1258 /*
1259 * The AP binding flow can be done only after the beacon
1260 * template is configured (which happens only in the mac80211
1261 * start_ap() flow), and adding the broadcast station can happen
1262 * only after the binding.
1263 * In addition, since modifying the MAC before adding a bcast
1264 * station is not allowed by the FW, delay the adding of MAC context to
1265 * the point where we can also add the bcast station.
1266 * In short: there's not much we can do at this point, other than
1267 * allocating resources :)
1268 */
5023d966
JB		 1269 if (vif->type == NL80211_IFTYPE_AP ||
1270 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1271 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1272 if (ret) {
1273 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1274 goto out_release;
1275 }
1276
77740cb4 1277 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1278 goto out_unlock;
1279 }
1280
93190fb0
AA		 1281 mvmvif->features |= hw->netdev_features;
1282
8ca151b5
JB		 1283 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1284 if (ret)
1285 goto out_release;
1286
999609f1 1287 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1288 if (ret)
fd66fc1c 1289 goto out_remove_mac;
8ca151b5 1290
7df15b1e 1291 /* beacon filtering */
a1022927 1292 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1293 if (ret)
1294 goto out_remove_mac;
1295
7df15b1e 1296 if (!mvm->bf_allowed_vif &&
73e5f2c5 1297 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1298 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1299 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1300 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1301 }
1302
8ca151b5
JB		 1303 /*
1304 * P2P_DEVICE interface does not have a channel context assigned to it,
1305 * so a dedicated PHY context is allocated to it and the corresponding
1306 * MAC context is bound to it at this stage.
1307 */
1308 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1309
fe0f2de3
IP		 1310 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1311 if (!mvmvif->phy_ctxt) {
1312 ret = -ENOSPC;
bd3351ba 1313 goto out_free_bf;
fe0f2de3 1314 }
8ca151b5 1315
53a9d61e 1316 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1317 ret = iwl_mvm_binding_add_vif(mvm, vif);
1318 if (ret)
53a9d61e 1319 goto out_unref_phy;
8ca151b5 1320
013290aa 1321 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1322 if (ret)
1323 goto out_unbind;
1324
1325 /* Save a pointer to p2p device vif, so it can later be used to
1326 * update the p2p device MAC when a GO is started/stopped */
1327 mvm->p2p_device_vif = vif;
1328 }
1329
63494374 1330 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1331 goto out_unlock;
1332
1333 out_unbind:
1334 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1335 out_unref_phy:
fe0f2de3 1336 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1337 out_free_bf:
1338 if (mvm->bf_allowed_vif == mvmvif) {
1339 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1340 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1341 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1342 }
8ca151b5
JB		 1343 out_remove_mac:
1344 mvmvif->phy_ctxt = NULL;
1345 iwl_mvm_mac_ctxt_remove(mvm, vif);
1346 out_release:
5ee2b215
AB		 1347 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1348 mvm->vif_count--;
1c2abf72 1349
8ca151b5
JB		 1350 iwl_mvm_mac_ctxt_release(mvm, vif);
1351 out_unlock:
1352 mutex_unlock(&mvm->mutex);
1353
d40fc489
GG		 1354 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1355
8ca151b5
JB		 1356 return ret;
1357}
1358
38a12b5b
JB		 1359static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1360 struct ieee80211_vif *vif)
8ca151b5 1361{
d92b732e 1362 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1363
1364 if (tfd_msk) {
fe92e32a
EG		 1365 /*
1366 * mac80211 first removes all the stations of the vif and
1367 * then removes the vif. When it removes a station it also
1368 * flushes the AMPDU session. So by now, all the AMPDU sessions
1369 * of all the stations of this vif are closed, and the queues
1370 * of these AMPDU sessions are properly closed.
1371 * We still need to take care of the shared queues of the vif.
1372 * Flush them here.
1373 */
8ca151b5 1374 mutex_lock(&mvm->mutex);
5888a40c 1375 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1376 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1377
1378 /*
1379 * There are transports that buffer a few frames in the host.
1380 * For these, the flush above isn't enough since while we were
1381 * flushing, the transport might have sent more frames to the
1382 * device. To solve this, wait here until the transport is
1383 * empty. Technically, this could have replaced the flush
1384 * above, but flush is much faster than draining. So flush
1385 * first, and drain to make sure we have no frames in the
1386 * transport anymore.
1387 * If a station still had frames on the shared queues, it is
1388 * already marked as draining, so to complete the draining, we
1389 * just need to wait until the transport is empty.
1390 */
1391 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1392 }
1393
1394 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1395 /*
1396 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1397 * We assume here that all the packets sent to the OFFCHANNEL
1398 * queue are sent in ROC session.
1399 */
1400 flush_work(&mvm->roc_done_wk);
1401 } else {
1402 /*
1403 * By now, all the AC queues are empty. The AGG queues are
1404 * empty too. We already got all the Tx responses for all the
1405 * packets in the queues. The drain work can have been
0742a75a 1406 * triggered. Flush it.
8ca151b5
JB		 1407 */
1408 flush_work(&mvm->sta_drained_wk);
1409 }
38a12b5b
JB		 1410}
1411
1412static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1413 struct ieee80211_vif *vif)
1414{
1415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1416 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1417
1418 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1419
1420 mutex_lock(&mvm->mutex);
1421
7df15b1e
HG		 1422 if (mvm->bf_allowed_vif == mvmvif) {
1423 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1424 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1425 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1426 }
1427
63494374
JB		 1428 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1429
8ca151b5
JB		 1430 /*
1431 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1432 * interface is be handled as part of the stop_ap flow.
8ca151b5 1433 */
5023d966
JB		 1434 if (vif->type == NL80211_IFTYPE_AP ||
1435 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1436#ifdef CONFIG_NL80211_TESTMODE
1437 if (vif == mvm->noa_vif) {
1438 mvm->noa_vif = NULL;
1439 mvm->noa_duration = 0;
1440 }
1441#endif
013290aa 1442 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1443 goto out_release;
1444 }
1445
1446 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1447 mvm->p2p_device_vif = NULL;
013290aa 1448 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1449 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1450 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1451 mvmvif->phy_ctxt = NULL;
1452 }
1453
5ee2b215 1454 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1455 mvm->vif_count--;
1c2abf72 1456
999609f1 1457 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1458 iwl_mvm_mac_ctxt_remove(mvm, vif);
1459
1460out_release:
1461 iwl_mvm_mac_ctxt_release(mvm, vif);
1462 mutex_unlock(&mvm->mutex);
1463}
1464
1465static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1466{
8ca151b5
JB		 1467 return 0;
1468}
1469
e59647ea
EP		 1470struct iwl_mvm_mc_iter_data {
1471 struct iwl_mvm *mvm;
1472 int port_id;
1473};
1474
1475static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1476 struct ieee80211_vif *vif)
1477{
1478 struct iwl_mvm_mc_iter_data *data = _data;
1479 struct iwl_mvm *mvm = data->mvm;
1480 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1481 int ret, len;
1482
1483 /* if we don't have free ports, mcast frames will be dropped */
1484 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1485 return;
1486
1487 if (vif->type != NL80211_IFTYPE_STATION ||
1488 !vif->bss_conf.assoc)
1489 return;
1490
1491 cmd->port_id = data->port_id++;
1492 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1493 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1494
1c4abec0 1495 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1496 if (ret)
1497 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1498}
1499
1500static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1501{
1502 struct iwl_mvm_mc_iter_data iter_data = {
1503 .mvm = mvm,
88f2fd73
MG		 1504 };
1505
e59647ea
EP		 1506 lockdep_assert_held(&mvm->mutex);
1507
1508 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1509 return;
1510
1c4abec0 1511 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1512 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1513 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1514}
1515
e59647ea
EP		 1516static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1517 struct netdev_hw_addr_list *mc_list)
8ca151b5 1518{
e59647ea
EP		 1519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1520 struct iwl_mcast_filter_cmd *cmd;
1521 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1522 int addr_count;
1523 bool pass_all;
e59647ea
EP		 1524 int len;
1525
f3bd58f4
MS		 1526 addr_count = netdev_hw_addr_list_count(mc_list);
1527 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1528 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1529 if (pass_all)
e59647ea 1530 addr_count = 0;
e59647ea
EP		 1531
1532 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1533 cmd = kzalloc(len, GFP_ATOMIC);
1534 if (!cmd)
1535 return 0;
1536
1537 if (pass_all) {
1538 cmd->pass_all = 1;
1539 return (u64)(unsigned long)cmd;
1540 }
1541
1542 netdev_hw_addr_list_for_each(addr, mc_list) {
1543 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1544 cmd->count, addr->addr);
1545 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1546 addr->addr, ETH_ALEN);
1547 cmd->count++;
1548 }
1549
1550 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1551}
1552
1553static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1554 unsigned int changed_flags,
1555 unsigned int *total_flags,
1556 u64 multicast)
1557{
e59647ea
EP		 1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1559 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1560
e59647ea 1561 mutex_lock(&mvm->mutex);
51b6b9e0 1562
e59647ea
EP		 1563 /* replace previous configuration */
1564 kfree(mvm->mcast_filter_cmd);
1565 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1566
e59647ea
EP		 1567 if (!cmd)
1568 goto out;
51b6b9e0 1569
e59647ea
EP		 1570 iwl_mvm_recalc_multicast(mvm);
1571out:
1572 mutex_unlock(&mvm->mutex);
1573 *total_flags = 0;
51b6b9e0
EG		 1574}
1575
effd1929
AO		 1576static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1577 struct ieee80211_vif *vif,
1578 unsigned int filter_flags,
1579 unsigned int changed_flags)
1580{
1581 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1582
1583 /* We support only filter for probe requests */
1584 if (!(changed_flags & FIF_PROBE_REQ))
1585 return;
1586
1587 /* Supported only for p2p client interfaces */
1588 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1589 !vif->p2p)
1590 return;
1591
1592 mutex_lock(&mvm->mutex);
1593 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1594 mutex_unlock(&mvm->mutex);
1595}
1596
c87163b9
EP		 1597#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1598struct iwl_bcast_iter_data {
1599 struct iwl_mvm *mvm;
1600 struct iwl_bcast_filter_cmd *cmd;
1601 u8 current_filter;
1602};
1603
1604static void
1605iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1606 const struct iwl_fw_bcast_filter *in_filter,
1607 struct iwl_fw_bcast_filter *out_filter)
1608{
1609 struct iwl_fw_bcast_filter_attr *attr;
1610 int i;
1611
1612 memcpy(out_filter, in_filter, sizeof(*out_filter));
1613
1614 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1615 attr = &out_filter->attrs[i];
1616
1617 if (!attr->mask)
1618 break;
1619
2ee8f021
EP		 1620 switch (attr->reserved1) {
1621 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1622 if (vif->bss_conf.arp_addr_cnt != 1) {
1623 attr->mask = 0;
1624 continue;
1625 }
1626
1627 attr->val = vif->bss_conf.arp_addr_list[0];
1628 break;
1629 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1630 attr->val = *(__be32 *)&vif->addr[2];
1631 break;
1632 default:
1633 break;
1634 }
1635 attr->reserved1 = 0;
c87163b9
EP		 1636 out_filter->num_attrs++;
1637 }
1638}
1639
1640static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1641 struct ieee80211_vif *vif)
1642{
1643 struct iwl_bcast_iter_data *data = _data;
1644 struct iwl_mvm *mvm = data->mvm;
1645 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1646 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1647 struct iwl_fw_bcast_mac *bcast_mac;
1648 int i;
1649
1650 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1651 return;
1652
1653 bcast_mac = &cmd->macs[mvmvif->id];
1654
e48393e8
IP		 1655 /*
1656 * enable filtering only for associated stations, but not for P2P
1657 * Clients
1658 */
1659 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1660 !vif->bss_conf.assoc)
c87163b9
EP		 1661 return;
1662
1663 bcast_mac->default_discard = 1;
1664
1665 /* copy all configured filters */
1666 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1667 /*
1668 * Make sure we don't exceed our filters limit.
1669 * if there is still a valid filter to be configured,
1670 * be on the safe side and just allow bcast for this mac.
1671 */
1672 if (WARN_ON_ONCE(data->current_filter >=
1673 ARRAY_SIZE(cmd->filters))) {
1674 bcast_mac->default_discard = 0;
1675 bcast_mac->attached_filters = 0;
1676 break;
1677 }
1678
1679 iwl_mvm_set_bcast_filter(vif,
1680 &mvm->bcast_filters[i],
1681 &cmd->filters[data->current_filter]);
1682
1683 /* skip current filter if it contains no attributes */
1684 if (!cmd->filters[data->current_filter].num_attrs)
1685 continue;
1686
1687 /* attach the filter to current mac */
1688 bcast_mac->attached_filters |=
1689 cpu_to_le16(BIT(data->current_filter));
1690
1691 data->current_filter++;
1692 }
1693}
1694
de06a59e
EP		 1695bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1696 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1697{
c87163b9
EP		 1698 struct iwl_bcast_iter_data iter_data = {
1699 .mvm = mvm,
de06a59e 1700 .cmd = cmd,
c87163b9
EP		 1701 };
1702
3b8983b1
MS		 1703 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1704 return false;
1705
de06a59e
EP		 1706 memset(cmd, 0, sizeof(*cmd));
1707 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1708 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1709
1710#ifdef CONFIG_IWLWIFI_DEBUGFS
1711 /* use debugfs filters/macs if override is configured */
1712 if (mvm->dbgfs_bcast_filtering.override) {
1713 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1714 sizeof(cmd->filters));
1715 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1716 sizeof(cmd->macs));
1717 return true;
1718 }
1719#endif
c87163b9
EP		 1720
1721 /* if no filters are configured, do nothing */
1722 if (!mvm->bcast_filters)
de06a59e 1723 return false;
c87163b9
EP		 1724
1725 /* configure and attach these filters for each associated sta vif */
1726 ieee80211_iterate_active_interfaces(
1727 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1728 iwl_mvm_bcast_filter_iterator, &iter_data);
1729
de06a59e
EP		 1730 return true;
1731}
1732static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1733 struct ieee80211_vif *vif)
1734{
1735 struct iwl_bcast_filter_cmd cmd;
1736
1737 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1738 return 0;
1739
1740 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1741 return 0;
1742
a1022927 1743 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1744 sizeof(cmd), &cmd);
1745}
1746#else
1747static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1748 struct ieee80211_vif *vif)
1749{
1750 return 0;
1751}
1752#endif
1753
8ca151b5
JB		 1754static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1755 struct ieee80211_vif *vif,
1756 struct ieee80211_bss_conf *bss_conf,
1757 u32 changes)
1758{
1759 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1760 int ret;
1761
6e97b0d2
IP		 1762 /*
1763 * Re-calculate the tsf id, as the master-slave relations depend on the
1764 * beacon interval, which was not known when the station interface was
1765 * added.
1766 */
1767 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1768 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1769
3dfd3a97
JB		 1770 /*
1771 * If we're not associated yet, take the (new) BSSID before associating
1772 * so the firmware knows. If we're already associated, then use the old
1773 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1774 * branch for disassociation below.
1775 */
1776 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1777 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1778
1779 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1780 if (ret)
1781 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1782
3dfd3a97
JB		 1783 /* after sending it once, adopt mac80211 data */
1784 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1785 mvmvif->associated = bss_conf->assoc;
1786
8ca151b5
JB		 1787 if (changes & BSS_CHANGED_ASSOC) {
1788 if (bss_conf->assoc) {
33cef925
JB		 1789 /* clear statistics to get clean beacon counter */
1790 iwl_mvm_request_statistics(mvm, true);
1791 memset(&mvmvif->beacon_stats, 0,
1792 sizeof(mvmvif->beacon_stats));
1793
8ca151b5 1794 /* add quota for this interface */
7754ae79 1795 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1796 if (ret) {
1797 IWL_ERR(mvm, "failed to update quotas\n");
1798 return;
1799 }
016d27e1
JB		 1800
1801 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1802 &mvm->status)) {
1803 /*
1804 * If we're restarting then the firmware will
1805 * obviously have lost synchronisation with
1806 * the AP. It will attempt to synchronise by
1807 * itself, but we can make it more reliable by
1808 * scheduling a session protection time event.
1809 *
1810 * The firmware needs to receive a beacon to
1811 * catch up with synchronisation, use 110% of
1812 * the beacon interval.
1813 *
1814 * Set a large maximum delay to allow for more
1815 * than a single interface.
1816 */
1817 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1818 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1819 5 * dur, false);
016d27e1 1820 }
1f3b0ff8
LE		 1821
1822 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1823 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1824 if (vif->p2p) {
29a90a49 1825 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1826 iwl_mvm_update_smps(mvm, vif,
1827 IWL_MVM_SMPS_REQ_PROT,
1828 IEEE80211_SMPS_DYNAMIC);
1829 }
8ca151b5 1830 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1831 /*
1832 * If update fails - SF might be running in associated
1833 * mode while disassociated - which is forbidden.
1834 */
1835 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1836 "Failed to update SF upon disassociation\n");
1837
8ca151b5
JB		 1838 /* remove AP station now that the MAC is unassoc */
1839 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1840 if (ret)
1841 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1842
1843 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1844 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1845 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1846 /* remove quota for this interface */
7754ae79 1847 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1848 if (ret)
1849 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1850
1851 if (vif->p2p)
1852 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1853
1854 /* this will take the cleared BSSID from bss_conf */
1855 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1856 if (ret)
1857 IWL_ERR(mvm,
1858 "failed to update MAC %pM (clear after unassoc)\n",
1859 vif->addr);
8ca151b5 1860 }
a20fd398 1861
e59647ea 1862 iwl_mvm_recalc_multicast(mvm);
c87163b9 1863 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1864
a20fd398
AO		 1865 /* reset rssi values */
1866 mvmvif->bf_data.ave_beacon_signal = 0;
1867
8e484f0b 1868 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1869 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1870 IEEE80211_SMPS_AUTOMATIC);
989c6505 1871 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1872 /*
1873 * We received a beacon _after_ association so
1874 * remove the session protection.
1875 */
1876 iwl_mvm_remove_time_event(mvm, mvmvif,
1877 &mvmvif->time_event_data);
8ca151b5 1878 }
cc87d322
EH		 1879
1880 if (changes & BSS_CHANGED_BEACON_INFO) {
1881 iwl_mvm_sf_update(mvm, vif, false);
1882 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1883 }
1884
1bc10d3b
JB		 1885 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1886 ret = iwl_mvm_power_update_mac(mvm);
1887 if (ret)
1888 IWL_ERR(mvm, "failed to update power mode\n");
1889 }
1890
88f2fd73
MG		 1891 if (changes & BSS_CHANGED_TXPOWER) {
1892 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1893 bss_conf->txpower);
1894 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1895 }
a20fd398
AO		 1896
1897 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1898 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1899 /* reset cqm events tracking */
1900 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1901 if (mvmvif->bf_data.bf_enabled) {
1902 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1903 if (ret)
1904 IWL_ERR(mvm,
1905 "failed to update CQM thresholds\n");
1906 }
a20fd398 1907 }
2ee8f021
EP		 1908
1909 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1910 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1911 iwl_mvm_configure_bcast_filter(mvm, vif);
1912 }
8ca151b5
JB		 1913}
1914
5023d966
JB		 1915static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1916 struct ieee80211_vif *vif)
8ca151b5
JB		 1917{
1918 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1919 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1920 int ret;
1921
576eeee9
EP		 1922 /*
1923 * iwl_mvm_mac_ctxt_add() might read directly from the device
1924 * (the system time), so make sure it is available.
1925 */
1926 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1927 if (ret)
1928 return ret;
1929
8ca151b5
JB		 1930 mutex_lock(&mvm->mutex);
1931
1932 /* Send the beacon template */
1933 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1934 if (ret)
1935 goto out_unlock;
1936
6e97b0d2
IP		 1937 /*
1938 * Re-calculate the tsf id, as the master-slave relations depend on the
1939 * beacon interval, which was not known when the AP interface was added.
1940 */
1941 if (vif->type == NL80211_IFTYPE_AP)
1942 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1943
94939080
GG		 1944 mvmvif->ap_assoc_sta_count = 0;
1945
8ca151b5
JB		 1946 /* Add the mac context */
1947 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1948 if (ret)
1949 goto out_unlock;
1950
1951 /* Perform the binding */
1952 ret = iwl_mvm_binding_add_vif(mvm, vif);
1953 if (ret)
1954 goto out_remove;
1955
8ca151b5
JB		 1956 /* Send the bcast station. At this stage the TBTT and DTIM time events
1957 * are added and applied to the scheduler */
013290aa 1958 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1959 if (ret)
1960 goto out_unbind;
1961
5691e218
IP		 1962 /* must be set before quota calculations */
1963 mvmvif->ap_ibss_active = true;
1964
a11e144e 1965 /* power updated needs to be done before quotas */
999609f1 1966 iwl_mvm_power_update_mac(mvm);
a11e144e 1967
7754ae79 1968 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 1969 if (ret)
a11e144e 1970 goto out_quota_failed;
8ca151b5 1971
5023d966 1972 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1973 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1974 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1975
29a90a49
EP		 1976 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1977
8e484f0b 1978 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1979
f697267f
AN		 1980 /* we don't support TDLS during DCM */
1981 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1982 iwl_mvm_teardown_tdls_peers(mvm);
1983
939e4904 1984 goto out_unlock;
8ca151b5 1985
a11e144e 1986out_quota_failed:
999609f1 1987 iwl_mvm_power_update_mac(mvm);
5691e218 1988 mvmvif->ap_ibss_active = false;
013290aa 1989 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 1990out_unbind:
1991 iwl_mvm_binding_remove_vif(mvm, vif);
1992out_remove:
1993 iwl_mvm_mac_ctxt_remove(mvm, vif);
1994out_unlock:
1995 mutex_unlock(&mvm->mutex);
576eeee9 1996 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 1997 return ret;
1998}
1999
5023d966
JB		 2000static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2001 struct ieee80211_vif *vif)
8ca151b5
JB		 2002{
2003 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2004 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2005
38a12b5b
JB		 2006 iwl_mvm_prepare_mac_removal(mvm, vif);
2007
8ca151b5
JB		 2008 mutex_lock(&mvm->mutex);
2009
664322fa 2010 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2011 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2012 iwl_mvm_remove_time_event(mvm, mvmvif,
2013 &mvmvif->time_event_data);
664322fa 2014 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2015 mvmvif->csa_countdown = false;
7f0a7c67 2016 }
664322fa 2017
003e5236
AO		 2018 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2019 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2020 mvm->csa_tx_block_bcn_timeout = 0;
2021 }
2022
5023d966 2023 mvmvif->ap_ibss_active = false;
1c87bbad 2024 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2025
8e484f0b 2026 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2027
29a90a49
EP		 2028 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2029
5023d966 2030 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2031 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2032 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2033
7754ae79 2034 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2035 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2036 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2037
999609f1 2038 iwl_mvm_power_update_mac(mvm);
a11e144e 2039
8ca151b5
JB		 2040 iwl_mvm_mac_ctxt_remove(mvm, vif);
2041
2042 mutex_unlock(&mvm->mutex);
2043}
2044
5023d966
JB		 2045static void
2046iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2047 struct ieee80211_vif *vif,
2048 struct ieee80211_bss_conf *bss_conf,
2049 u32 changes)
8ca151b5 2050{
be2056fc 2051 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2052
be2056fc
IP		 2053 /* Changes will be applied when the AP/IBSS is started */
2054 if (!mvmvif->ap_ibss_active)
2055 return;
2056
863230da 2057 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2058 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2059 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2060 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2061
8ca151b5 2062 /* Need to send a new beacon template to the FW */
863230da
JB		 2063 if (changes & BSS_CHANGED_BEACON &&
2064 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2065 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2066
2067 if (changes & BSS_CHANGED_TXPOWER) {
2068 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2069 bss_conf->txpower);
2070 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2071 }
2072
8ca151b5
JB		 2073}
2074
2075static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2076 struct ieee80211_vif *vif,
2077 struct ieee80211_bss_conf *bss_conf,
2078 u32 changes)
2079{
2080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2081
576eeee9
EP		 2082 /*
2083 * iwl_mvm_bss_info_changed_station() might call
2084 * iwl_mvm_protect_session(), which reads directly from
2085 * the device (the system time), so make sure it is available.
2086 */
2087 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2088 return;
2089
8ca151b5
JB		 2090 mutex_lock(&mvm->mutex);
2091
723f02ed 2092 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2093 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2094
8ca151b5
JB		 2095 switch (vif->type) {
2096 case NL80211_IFTYPE_STATION:
2097 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2098 break;
2099 case NL80211_IFTYPE_AP:
5023d966
JB		 2100 case NL80211_IFTYPE_ADHOC:
2101 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2102 break;
2103 default:
2104 /* shouldn't happen */
2105 WARN_ON_ONCE(1);
2106 }
2107
2108 mutex_unlock(&mvm->mutex);
576eeee9 2109 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2110}
2111
2112static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2113 struct ieee80211_vif *vif,
c56ef672 2114 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2115{
2116 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2117 int ret;
2118
6749dd80
LC		 2119 if (hw_req->req.n_channels == 0 ||
2120 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2121 return -EINVAL;
2122
2123 mutex_lock(&mvm->mutex);
6749dd80 2124 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2125 mutex_unlock(&mvm->mutex);
6749dd80 2126
8ca151b5
JB		 2127 return ret;
2128}
2129
2130static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2131 struct ieee80211_vif *vif)
2132{
2133 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2134
2135 mutex_lock(&mvm->mutex);
2136
e7d3abab
LC		 2137 /* Due to a race condition, it's possible that mac80211 asks
2138 * us to stop a hw_scan when it's already stopped. This can
2139 * happen, for instance, if we stopped the scan ourselves,
2140 * called ieee80211_scan_completed() and the userspace called
2141 * cancel scan scan before ieee80211_scan_work() could run.
2142 * To handle that, simply return if the scan is not running.
2143 */
262888fc 2144 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2145 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2146
2147 mutex_unlock(&mvm->mutex);
2148}
2149
2150static void
2151iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2152 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2153 int num_frames,
2154 enum ieee80211_frame_release_type reason,
2155 bool more_data)
2156{
2157 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2158
3e56eadf 2159 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2160
3e56eadf
JB		 2161 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2162 tids, more_data, false);
2163}
2164
2165static void
2166iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2167 struct ieee80211_sta *sta, u16 tids,
2168 int num_frames,
2169 enum ieee80211_frame_release_type reason,
2170 bool more_data)
2171{
2172 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2173
2174 /* Called when we need to transmit (a) frame(s) from agg queue */
2175
2176 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2177 tids, more_data, true);
8ca151b5
JB		 2178}
2179
2180static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2181 struct ieee80211_vif *vif,
2182 enum sta_notify_cmd cmd,
2183 struct ieee80211_sta *sta)
2184{
2185 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2186 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2187 unsigned long txqs = 0, tids = 0;
3e56eadf 2188 int tid;
8ca151b5 2189
c22b0ff5
EG		 2190 spin_lock_bh(&mvmsta->lock);
2191 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2192 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2193
2194 if (tid_data->state != IWL_AGG_ON &&
2195 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2196 continue;
2197
2198 __set_bit(tid_data->txq_id, &txqs);
2199
2200 if (iwl_mvm_tid_queued(tid_data) == 0)
2201 continue;
2202
2203 __set_bit(tid, &tids);
2204 }
2205
8ca151b5
JB		 2206 switch (cmd) {
2207 case STA_NOTIFY_SLEEP:
e3d4bc8c 2208 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2209 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2210
c22b0ff5 2211 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2212 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2213
2214 if (txqs)
2215 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2216 /*
2217 * The fw updates the STA to be asleep. Tx packets on the Tx
2218 * queues to this station will not be transmitted. The fw will
2219 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2220 */
2221 break;
2222 case STA_NOTIFY_AWAKE:
881acd89 2223 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2224 break;
c22b0ff5
EG		 2225
2226 if (txqs)
2227 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2228 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2229 break;
2230 default:
2231 break;
2232 }
c22b0ff5 2233 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2234}
2235
1ddbbb0c
JB		 2236static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2237 struct ieee80211_vif *vif,
2238 struct ieee80211_sta *sta)
2239{
2240 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
94939080 2241 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
9d8ce6af 2242 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2243
2244 /*
2245 * This is called before mac80211 does RCU synchronisation,
2246 * so here we already invalidate our internal RCU-protected
2247 * station pointer. The rest of the code will thus no longer
2248 * be able to find the station this way, and we don't rely
2249 * on further RCU synchronisation after the sta_state()
2250 * callback deleted the station.
2251 */
2252 mutex_lock(&mvm->mutex);
2253 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2254 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2255 ERR_PTR(-ENOENT));
94939080
GG		 2256
2257 if (mvm_sta->vif->type == NL80211_IFTYPE_AP) {
2258 mvmvif->ap_assoc_sta_count--;
f82c8339 2259 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
94939080
GG		 2260 }
2261
1ddbbb0c
JB		 2262 mutex_unlock(&mvm->mutex);
2263}
2264
bd1ba664
JB		 2265static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2266 const u8 *bssid)
2267{
2268 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2269 return;
2270
2271 if (iwlwifi_mod_params.uapsd_disable) {
2272 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2273 return;
2274 }
2275
2276 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2277}
2278
1e8f1329
GBA		 2279static void
2280iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2281 struct ieee80211_vif *vif, u8 *peer_addr,
2282 enum nl80211_tdls_operation action)
2283{
2284 struct iwl_fw_dbg_trigger_tlv *trig;
2285 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2286
2287 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2288 return;
2289
2290 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2291 tdls_trig = (void *)trig->data;
2292 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2293 return;
2294
2295 if (!(tdls_trig->action_bitmap & BIT(action)))
2296 return;
2297
2298 if (tdls_trig->peer_mode &&
2299 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2300 return;
2301
2302 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2303 "TDLS event occurred, peer %pM, action %d",
2304 peer_addr, action);
2305}
2306
8ca151b5
JB		 2307static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2308 struct ieee80211_vif *vif,
2309 struct ieee80211_sta *sta,
2310 enum ieee80211_sta_state old_state,
2311 enum ieee80211_sta_state new_state)
2312{
2313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2314 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2315 int ret;
2316
2317 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2318 sta->addr, old_state, new_state);
2319
2320 /* this would be a mac80211 bug ... but don't crash */
2321 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2322 return -EINVAL;
2323
2324 /* if a STA is being removed, reuse its ID */
2325 flush_work(&mvm->sta_drained_wk);
2326
2327 mutex_lock(&mvm->mutex);
2328 if (old_state == IEEE80211_STA_NOTEXIST &&
2329 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2330 /*
2331 * Firmware bug - it'll crash if the beacon interval is less
2332 * than 16. We can't avoid connecting at all, so refuse the
2333 * station state change, this will cause mac80211 to abandon
2334 * attempts to connect to this AP, and eventually wpa_s will
2335 * blacklist the AP...
2336 */
2337 if (vif->type == NL80211_IFTYPE_STATION &&
2338 vif->bss_conf.beacon_int < 16) {
2339 IWL_ERR(mvm,
2340 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2341 sta->addr, vif->bss_conf.beacon_int);
2342 ret = -EINVAL;
2343 goto out_unlock;
2344 }
cf7b491d
AN		 2345
2346 if (sta->tdls &&
2347 (vif->p2p ||
fa3d07e4
AN		 2348 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2349 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2350 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2351 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2352 ret = -EBUSY;
2353 goto out_unlock;
2354 }
2355
8ca151b5 2356 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2357 if (sta->tdls && ret == 0) {
fa3d07e4 2358 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2359 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2360 NL80211_TDLS_SETUP);
2361 }
8ca151b5
JB		 2362 } else if (old_state == IEEE80211_STA_NONE &&
2363 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2364 /*
2365 * EBS may be disabled due to previous failures reported by FW.
2366 * Reset EBS status here assuming environment has been changed.
2367 */
2368 mvm->last_ebs_successful = true;
bd1ba664 2369 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2370 ret = 0;
2371 } else if (old_state == IEEE80211_STA_AUTH &&
2372 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2373 ret = iwl_mvm_update_sta(mvm, vif, sta);
2374 if (ret == 0)
2375 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2376 mvmvif->phy_ctxt->channel->band,
2377 true);
8ca151b5
JB		 2378 } else if (old_state == IEEE80211_STA_ASSOC &&
2379 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2380
2381 /* we don't support TDLS during DCM */
2382 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2383 iwl_mvm_teardown_tdls_peers(mvm);
2384
1e8f1329
GBA		 2385 if (sta->tdls)
2386 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2387 NL80211_TDLS_ENABLE_LINK);
2388
7df15b1e 2389 /* enable beacon filtering */
fa7b2e7f 2390 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2391 ret = 0;
2392 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2393 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2394 /* disable beacon filtering */
a1022927 2395 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2396 ret = 0;
2397 } else if (old_state == IEEE80211_STA_ASSOC &&
2398 new_state == IEEE80211_STA_AUTH) {
2399 ret = 0;
2400 } else if (old_state == IEEE80211_STA_AUTH &&
2401 new_state == IEEE80211_STA_NONE) {
2402 ret = 0;
2403 } else if (old_state == IEEE80211_STA_NONE &&
2404 new_state == IEEE80211_STA_NOTEXIST) {
2405 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2406 if (sta->tdls) {
fa3d07e4 2407 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2408 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2409 NL80211_TDLS_DISABLE_LINK);
2410 }
8ca151b5
JB		 2411 } else {
2412 ret = -EIO;
2413 }
48bc1307 2414 out_unlock:
8ca151b5
JB		 2415 mutex_unlock(&mvm->mutex);
2416
9c126cd6
LK		 2417 if (sta->tdls && ret == 0) {
2418 if (old_state == IEEE80211_STA_NOTEXIST &&
2419 new_state == IEEE80211_STA_NONE)
2420 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2421 else if (old_state == IEEE80211_STA_NONE &&
2422 new_state == IEEE80211_STA_NOTEXIST)
2423 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2424 }
2425
8ca151b5
JB		 2426 return ret;
2427}
2428
2429static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2430{
2431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2432
2433 mvm->rts_threshold = value;
2434
2435 return 0;
2436}
2437
1f3b0ff8
LE		 2438static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2439 struct ieee80211_vif *vif,
2440 struct ieee80211_sta *sta, u32 changed)
2441{
2442 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2443
2444 if (vif->type == NL80211_IFTYPE_STATION &&
2445 changed & IEEE80211_RC_NSS_CHANGED)
2446 iwl_mvm_sf_update(mvm, vif, false);
2447}
2448
8ca151b5
JB		 2449static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2450 struct ieee80211_vif *vif, u16 ac,
2451 const struct ieee80211_tx_queue_params *params)
2452{
2453 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2454 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2455
2456 mvmvif->queue_params[ac] = *params;
2457
2458 /*
2459 * No need to update right away, we'll get BSS_CHANGED_QOS
2460 * The exception is P2P_DEVICE interface which needs immediate update.
2461 */
2462 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2463 int ret;
2464
2465 mutex_lock(&mvm->mutex);
3dfd3a97 2466 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2467 mutex_unlock(&mvm->mutex);
2468 return ret;
2469 }
2470 return 0;
2471}
2472
2473static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2474 struct ieee80211_vif *vif)
2475{
2476 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2477 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2478 200 + vif->bss_conf.beacon_int);
2479 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2480 100 + vif->bss_conf.beacon_int);
2481
2482 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2483 return;
2484
576eeee9
EP		 2485 /*
2486 * iwl_mvm_protect_session() reads directly from the device
2487 * (the system time), so make sure it is available.
2488 */
2489 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2490 return;
2491
8ca151b5
JB		 2492 mutex_lock(&mvm->mutex);
2493 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2494 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2495 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2496
2497 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2498}
2499
35a000b7
DS		 2500static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2501 struct ieee80211_vif *vif,
2502 struct cfg80211_sched_scan_request *req,
633e2713 2503 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2504{
2505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2506
35a000b7 2507 int ret;
4660dfbb 2508
35a000b7
DS		 2509 mutex_lock(&mvm->mutex);
2510
1f940386 2511 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2512 ret = -EBUSY;
2513 goto out;
2514 }
2515
19945dfb 2516 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2517
35a000b7
DS		 2518out:
2519 mutex_unlock(&mvm->mutex);
2520 return ret;
2521}
2522
37e3308c
JB		 2523static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2524 struct ieee80211_vif *vif)
35a000b7
DS		 2525{
2526 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2527 int ret;
35a000b7
DS		 2528
2529 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2530
2531 /* Due to a race condition, it's possible that mac80211 asks
2532 * us to stop a sched_scan when it's already stopped. This
2533 * can happen, for instance, if we stopped the scan ourselves,
2534 * called ieee80211_sched_scan_stopped() and the userspace called
2535 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2536 * could run. To handle this, simply return if the scan is
2537 * not running.
2538 */
262888fc 2539 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2540 mutex_unlock(&mvm->mutex);
2541 return 0;
2542 }
2543
c7d42480 2544 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2545 mutex_unlock(&mvm->mutex);
33ea27f6 2546 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2547
33ea27f6 2548 return ret;
35a000b7
DS		 2549}
2550
8ca151b5
JB		 2551static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2552 enum set_key_cmd cmd,
2553 struct ieee80211_vif *vif,
2554 struct ieee80211_sta *sta,
2555 struct ieee80211_key_conf *key)
2556{
2557 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2558 int ret;
d6ee54a9 2559 u8 key_offset;
8ca151b5
JB		 2560
2561 if (iwlwifi_mod_params.sw_crypto) {
2562 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2563 return -EOPNOTSUPP;
2564 }
2565
2566 switch (key->cipher) {
2567 case WLAN_CIPHER_SUITE_TKIP:
2568 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
8ca151b5
JB		 2569 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2570 break;
ca8c0f4b
JB		 2571 case WLAN_CIPHER_SUITE_CCMP:
2572 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2573 break;
8ca151b5 2574 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2575 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2576 break;
2577 case WLAN_CIPHER_SUITE_WEP40:
2578 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2579 /* For non-client mode, only use WEP keys for TX as we probably
2580 * don't have a station yet anyway and would then have to keep
2581 * track of the keys, linking them to each of the clients/peers
2582 * as they appear. For now, don't do that, for performance WEP
2583 * offload doesn't really matter much, but we need it for some
2584 * other offload features in client mode.
8ca151b5 2585 */
ba3943b0
JB		 2586 if (vif->type != NL80211_IFTYPE_STATION)
2587 return 0;
2588 break;
8ca151b5 2589 default:
e36e5433
MS		 2590 /* currently FW supports only one optional cipher scheme */
2591 if (hw->n_cipher_schemes &&
2592 hw->cipher_schemes->cipher == key->cipher)
2593 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2594 else
2595 return -EOPNOTSUPP;
8ca151b5
JB		 2596 }
2597
2598 mutex_lock(&mvm->mutex);
2599
2600 switch (cmd) {
2601 case SET_KEY:
5023d966
JB		 2602 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2603 vif->type == NL80211_IFTYPE_AP) && !sta) {
2604 /*
2605 * GTK on AP interface is a TX-only key, return 0;
2606 * on IBSS they're per-station and because we're lazy
2607 * we don't support them for RX, so do the same.
2608 */
6caffd4f
JB		 2609 ret = 0;
2610 key->hw_key_idx = STA_KEY_IDX_INVALID;
2611 break;
2612 }
2613
b546dcd6
JB		 2614 /* During FW restart, in order to restore the state as it was,
2615 * don't try to reprogram keys we previously failed for.
2616 */
2617 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2618 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2619 IWL_DEBUG_MAC80211(mvm,
2620 "skip invalid idx key programming during restart\n");
2621 ret = 0;
2622 break;
2623 }
2624
d6ee54a9
LC		 2625 /* in HW restart reuse the index, otherwise request a new one */
2626 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2627 key_offset = key->hw_key_idx;
2628 else
2629 key_offset = STA_KEY_IDX_INVALID;
2630
8ca151b5 2631 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2632 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2633 if (ret) {
2634 IWL_WARN(mvm, "set key failed\n");
2635 /*
2636 * can't add key for RX, but we don't need it
2637 * in the device for TX so still return 0
2638 */
6caffd4f 2639 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2640 ret = 0;
2641 }
2642
2643 break;
2644 case DISABLE_KEY:
6caffd4f
JB		 2645 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2646 ret = 0;
2647 break;
2648 }
2649
8ca151b5
JB		 2650 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2651 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2652 break;
2653 default:
2654 ret = -EINVAL;
2655 }
2656
2657 mutex_unlock(&mvm->mutex);
2658 return ret;
2659}
2660
2661static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2662 struct ieee80211_vif *vif,
2663 struct ieee80211_key_conf *keyconf,
2664 struct ieee80211_sta *sta,
2665 u32 iv32, u16 *phase1key)
2666{
2667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2668
5023d966
JB		 2669 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2670 return;
2671
8ca151b5
JB		 2672 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2673}
2674
2675
b112889c
AM		 2676static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2677 struct iwl_rx_packet *pkt, void *data)
2678{
2679 struct iwl_mvm *mvm =
2680 container_of(notif_wait, struct iwl_mvm, notif_wait);
2681 struct iwl_hs20_roc_res *resp;
2682 int resp_len = iwl_rx_packet_payload_len(pkt);
2683 struct iwl_mvm_time_event_data *te_data = data;
2684
2685 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2686 return true;
2687
2688 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2689 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2690 return true;
2691 }
2692
2693 resp = (void *)pkt->data;
2694
2695 IWL_DEBUG_TE(mvm,
2696 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2697 resp->status, resp->event_unique_id);
2698
2699 te_data->uid = le32_to_cpu(resp->event_unique_id);
2700 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2701 te_data->uid);
2702
2703 spin_lock_bh(&mvm->time_event_lock);
2704 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2705 spin_unlock_bh(&mvm->time_event_lock);
2706
2707 return true;
2708}
2709
35d3dab5 2710#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 2711static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2712 struct ieee80211_channel *channel,
2713 struct ieee80211_vif *vif,
2714 int duration)
2715{
2716 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2718 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 2719 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c
AM		 2720 struct iwl_notification_wait wait_time_event;
2721 struct iwl_hs20_roc_req aux_roc_req = {
2722 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2723 .id_and_color =
2724 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2725 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2726 /* Set the channel info data */
2727 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2728 PHY_BAND_24 : PHY_BAND_5,
2729 .channel_info.channel = channel->hw_value,
2730 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2731 /* Set the time and duration */
2732 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2733 .apply_time_max_delay =
2734 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2735 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2736 };
2737
2738 /* Set the node address */
2739 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2740
a6cc5163
MG		 2741 lockdep_assert_held(&mvm->mutex);
2742
2743 spin_lock_bh(&mvm->time_event_lock);
2744
2745 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2746 spin_unlock_bh(&mvm->time_event_lock);
2747 return -EIO;
2748 }
2749
b112889c
AM		 2750 te_data->vif = vif;
2751 te_data->duration = duration;
2752 te_data->id = HOT_SPOT_CMD;
2753
b112889c
AM		 2754 spin_unlock_bh(&mvm->time_event_lock);
2755
2756 /*
2757 * Use a notification wait, which really just processes the
2758 * command response and doesn't wait for anything, in order
2759 * to be able to process the response and get the UID inside
2760 * the RX path. Using CMD_WANT_SKB doesn't work because it
2761 * stores the buffer and then wakes up this thread, by which
2762 * time another notification (that the time event started)
2763 * might already be processed unsuccessfully.
2764 */
2765 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2766 time_event_response,
2767 ARRAY_SIZE(time_event_response),
2768 iwl_mvm_rx_aux_roc, te_data);
2769
2770 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2771 &aux_roc_req);
2772
2773 if (res) {
2774 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2775 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2776 goto out_clear_te;
2777 }
2778
2779 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2780 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2781 /* should never fail */
2782 WARN_ON_ONCE(res);
2783
2784 if (res) {
2785 out_clear_te:
2786 spin_lock_bh(&mvm->time_event_lock);
2787 iwl_mvm_te_clear_data(mvm, te_data);
2788 spin_unlock_bh(&mvm->time_event_lock);
2789 }
2790
2791 return res;
2792}
2793
8ca151b5
JB		 2794static int iwl_mvm_roc(struct ieee80211_hw *hw,
2795 struct ieee80211_vif *vif,
2796 struct ieee80211_channel *channel,
d339d5ca
IP		 2797 int duration,
2798 enum ieee80211_roc_type type)
8ca151b5
JB		 2799{
2800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2801 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2802 struct cfg80211_chan_def chandef;
31d385ae
IP		 2803 struct iwl_mvm_phy_ctxt *phy_ctxt;
2804 int ret, i;
2805
2806 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2807 duration, type);
8ca151b5 2808
6ed13164
MG		 2809 flush_work(&mvm->roc_done_wk);
2810
a6cc5163
MG		 2811 mutex_lock(&mvm->mutex);
2812
b112889c
AM		 2813 switch (vif->type) {
2814 case NL80211_IFTYPE_STATION:
859d914c
JB		 2815 if (fw_has_capa(&mvm->fw->ucode_capa,
2816 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 2817 /* Use aux roc framework (HS20) */
2818 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2819 vif, duration);
2820 goto out_unlock;
2821 }
2822 IWL_ERR(mvm, "hotspot not supported\n");
2823 ret = -EINVAL;
a6cc5163 2824 goto out_unlock;
b112889c
AM		 2825 case NL80211_IFTYPE_P2P_DEVICE:
2826 /* handle below */
2827 break;
2828 default:
2829 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2830 ret = -EINVAL;
2831 goto out_unlock;
8ca151b5
JB		 2832 }
2833
31d385ae
IP		 2834 for (i = 0; i < NUM_PHY_CTX; i++) {
2835 phy_ctxt = &mvm->phy_ctxts[i];
2836 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2837 continue;
2838
2839 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2840 /*
2841 * Unbind the P2P_DEVICE from the current PHY context,
2842 * and if the PHY context is not used remove it.
2843 */
2844 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2845 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2846 goto out_unlock;
2847
2848 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2849
2850 /* Bind the P2P_DEVICE to the current PHY Context */
2851 mvmvif->phy_ctxt = phy_ctxt;
2852
2853 ret = iwl_mvm_binding_add_vif(mvm, vif);
2854 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2855 goto out_unlock;
2856
2857 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2858 goto schedule_time_event;
2859 }
2860 }
2861
2862 /* Need to update the PHY context only if the ROC channel changed */
2863 if (channel == mvmvif->phy_ctxt->channel)
2864 goto schedule_time_event;
2865
8ca151b5 2866 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2867
31d385ae
IP		 2868 /*
2869 * Change the PHY context configuration as it is currently referenced
2870 * only by the P2P Device MAC
2871 */
2872 if (mvmvif->phy_ctxt->ref == 1) {
2873 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2874 &chandef, 1, 1);
2875 if (ret)
2876 goto out_unlock;
2877 } else {
2878 /*
2879 * The PHY context is shared with other MACs. Need to remove the
2880 * P2P Device from the binding, allocate an new PHY context and
2881 * create a new binding
2882 */
2883 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2884 if (!phy_ctxt) {
2885 ret = -ENOSPC;
2886 goto out_unlock;
2887 }
2888
2889 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2890 1, 1);
2891 if (ret) {
2892 IWL_ERR(mvm, "Failed to change PHY context\n");
2893 goto out_unlock;
2894 }
2895
2896 /* Unbind the P2P_DEVICE from the current PHY context */
2897 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2898 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2899 goto out_unlock;
2900
2901 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2902
2903 /* Bind the P2P_DEVICE to the new allocated PHY context */
2904 mvmvif->phy_ctxt = phy_ctxt;
2905
2906 ret = iwl_mvm_binding_add_vif(mvm, vif);
2907 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2908 goto out_unlock;
2909
2910 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2911 }
2912
2913schedule_time_event:
8ca151b5 2914 /* Schedule the time events */
e635c797 2915 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2916
31d385ae 2917out_unlock:
8ca151b5
JB		 2918 mutex_unlock(&mvm->mutex);
2919 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2920 return ret;
2921}
2922
2923static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2924{
2925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2926
2927 IWL_DEBUG_MAC80211(mvm, "enter\n");
2928
2929 mutex_lock(&mvm->mutex);
bf5da87f 2930 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2931 mutex_unlock(&mvm->mutex);
2932
2933 IWL_DEBUG_MAC80211(mvm, "leave\n");
2934 return 0;
2935}
2936
b08c1d97
LC		 2937static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2938 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2939{
fe0f2de3
IP		 2940 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2941 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2942 int ret;
2943
b08c1d97
LC		 2944 lockdep_assert_held(&mvm->mutex);
2945
53a9d61e 2946 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2947
fe0f2de3
IP		 2948 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2949 if (!phy_ctxt) {
2950 ret = -ENOSPC;
2951 goto out;
2952 }
8ca151b5 2953
dcbc3e1a 2954 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2955 ctx->rx_chains_static,
2956 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2957 if (ret) {
2958 IWL_ERR(mvm, "Failed to add PHY context\n");
2959 goto out;
2960 }
2961
53a9d61e 2962 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2963 *phy_ctxt_id = phy_ctxt->id;
2964out:
b08c1d97
LC		 2965 return ret;
2966}
2967
2968static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2969 struct ieee80211_chanctx_conf *ctx)
2970{
2971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2972 int ret;
2973
2974 mutex_lock(&mvm->mutex);
2975 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2976 mutex_unlock(&mvm->mutex);
b08c1d97 2977
8ca151b5
JB		 2978 return ret;
2979}
2980
b08c1d97
LC		 2981static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2982 struct ieee80211_chanctx_conf *ctx)
2983{
2984 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2985 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2986
2987 lockdep_assert_held(&mvm->mutex);
2988
2989 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2990}
2991
8ca151b5
JB		 2992static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2993 struct ieee80211_chanctx_conf *ctx)
2994{
2995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2996
2997 mutex_lock(&mvm->mutex);
b08c1d97 2998 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2999 mutex_unlock(&mvm->mutex);
3000}
3001
3002static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3003 struct ieee80211_chanctx_conf *ctx,
3004 u32 changed)
3005{
3006 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3007 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3008 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3009
31d385ae
IP		 3010 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3011 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3012 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3013 IEEE80211_CHANCTX_CHANGE_RADAR |
3014 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3015 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3016 phy_ctxt->ref, changed))
3017 return;
3018
8ca151b5 3019 mutex_lock(&mvm->mutex);
4d66449a 3020 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3021 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3022 ctx->rx_chains_static,
3023 ctx->rx_chains_dynamic);
3024 mutex_unlock(&mvm->mutex);
3025}
3026
b08c1d97
LC		 3027static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3028 struct ieee80211_vif *vif,
f0c97783
LC		 3029 struct ieee80211_chanctx_conf *ctx,
3030 bool switching_chanctx)
8ca151b5 3031{
fe0f2de3
IP		 3032 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3033 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3034 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3035 int ret;
3036
b08c1d97 3037 lockdep_assert_held(&mvm->mutex);
8ca151b5 3038
fe0f2de3 3039 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3040
3041 switch (vif->type) {
3042 case NL80211_IFTYPE_AP:
4741dd04
LC		 3043 /* only needed if we're switching chanctx (i.e. during CSA) */
3044 if (switching_chanctx) {
bd3398e2
AO		 3045 mvmvif->ap_ibss_active = true;
3046 break;
3047 }
5023d966 3048 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3049 /*
3050 * The AP binding flow is handled as part of the start_ap flow
5023d966 3051 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3052 */
3053 ret = 0;
b08c1d97 3054 goto out;
8ca151b5 3055 case NL80211_IFTYPE_STATION:
2533edce 3056 break;
8ca151b5 3057 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3058 /* always disable PS when a monitor interface is active */
3059 mvmvif->ps_disabled = true;
8ca151b5
JB		 3060 break;
3061 default:
3062 ret = -EINVAL;
b08c1d97 3063 goto out;
8ca151b5
JB		 3064 }
3065
3066 ret = iwl_mvm_binding_add_vif(mvm, vif);
3067 if (ret)
b08c1d97 3068 goto out;
8ca151b5
JB		 3069
3070 /*
92d85562
AB		 3071 * Power state must be updated before quotas,
3072 * otherwise fw will complain.
3073 */
999609f1 3074 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3075
3076 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3077 * interfaces. For the other types, the bss_info changed flow
3078 * will handle quota settings.
3079 */
3080 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3081 mvmvif->monitor_active = true;
7754ae79 3082 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3083 if (ret)
3084 goto out_remove_binding;
3085 }
3086
bd3398e2 3087 /* Handle binding during CSA */
a57c688d 3088 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3089 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3090 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3091 }
3092
4741dd04 3093 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3094 u32 duration = 2 * vif->bss_conf.beacon_int;
3095
3096 /* iwl_mvm_protect_session() reads directly from the
3097 * device (the system time), so make sure it is
3098 * available.
3099 */
3100 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3101 if (ret)
3102 goto out_remove_binding;
3103
3104 /* Protect the session to make sure we hear the first
3105 * beacon on the new channel.
3106 */
3107 iwl_mvm_protect_session(mvm, vif, duration, duration,
3108 vif->bss_conf.beacon_int / 2,
3109 true);
3110
3111 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3112
7754ae79 3113 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3114 }
3115
b08c1d97 3116 goto out;
8ca151b5 3117
b08c1d97 3118out_remove_binding:
8ca151b5 3119 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3120 iwl_mvm_power_update_mac(mvm);
b08c1d97 3121out:
8ca151b5
JB		 3122 if (ret)
3123 mvmvif->phy_ctxt = NULL;
3124 return ret;
3125}
b08c1d97
LC		 3126static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3127 struct ieee80211_vif *vif,
3128 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3129{
3130 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3131 int ret;
8ca151b5
JB		 3132
3133 mutex_lock(&mvm->mutex);
f0c97783 3134 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3135 mutex_unlock(&mvm->mutex);
3136
3137 return ret;
3138}
3139
3140static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3141 struct ieee80211_vif *vif,
f0c97783
LC		 3142 struct ieee80211_chanctx_conf *ctx,
3143 bool switching_chanctx)
b08c1d97
LC		 3144{
3145 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3146 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3147
3148 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3149
3150 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3151
8ca151b5 3152 switch (vif->type) {
5023d966 3153 case NL80211_IFTYPE_ADHOC:
b08c1d97 3154 goto out;
8ca151b5 3155 case NL80211_IFTYPE_MONITOR:
1e1391ca 3156 mvmvif->monitor_active = false;
2533edce 3157 mvmvif->ps_disabled = false;
8ca151b5 3158 break;
bd3398e2
AO		 3159 case NL80211_IFTYPE_AP:
3160 /* This part is triggered only during CSA */
4741dd04 3161 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3162 goto out;
bd3398e2 3163
7ef0aab6
AO		 3164 mvmvif->csa_countdown = false;
3165
003e5236
AO		 3166 /* Set CS bit on all the stations */
3167 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3168
3169 /* Save blocked iface, the timeout is set on the next beacon */
3170 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3171
bd3398e2 3172 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3173 break;
3174 case NL80211_IFTYPE_STATION:
3175 if (!switching_chanctx)
3176 break;
3177
3178 disabled_vif = vif;
3179
3dfd3a97 3180 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3181 break;
8ca151b5
JB		 3182 default:
3183 break;
3184 }
3185
7754ae79 3186 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3187 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3188
b08c1d97 3189out:
a11e144e 3190 mvmvif->phy_ctxt = NULL;
999609f1 3191 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3192}
3193
3194static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3195 struct ieee80211_vif *vif,
3196 struct ieee80211_chanctx_conf *ctx)
3197{
3198 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3199
3200 mutex_lock(&mvm->mutex);
f0c97783 3201 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3202 mutex_unlock(&mvm->mutex);
3203}
3204
50cc9574
LC		 3205static int
3206iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3207 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3208{
b08c1d97
LC		 3209 int ret;
3210
b08c1d97 3211 mutex_lock(&mvm->mutex);
f0c97783 3212 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3213 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3214
3215 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3216 if (ret) {
3217 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3218 goto out_reassign;
3219 }
3220
f0c97783
LC		 3221 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3222 true);
b08c1d97
LC		 3223 if (ret) {
3224 IWL_ERR(mvm,
3225 "failed to assign new_ctx during channel switch\n");
3226 goto out_remove;
3227 }
3228
f697267f
AN		 3229 /* we don't support TDLS during DCM - can be caused by channel switch */
3230 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3231 iwl_mvm_teardown_tdls_peers(mvm);
3232
b08c1d97
LC		 3233 goto out;
3234
3235out_remove:
3236 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3237
3238out_reassign:
6fd1fb63 3239 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3240 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3241 goto out_restart;
3242 }
3243
6fd1fb63
LC		 3244 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3245 true)) {
b08c1d97
LC		 3246 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3247 goto out_restart;
3248 }
3249
3250 goto out;
3251
3252out_restart:
3253 /* things keep failing, better restart the hw */
3254 iwl_mvm_nic_restart(mvm, false);
3255
3256out:
3257 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3258
3259 return ret;
3260}
3261
48a256e8
LC		 3262static int
3263iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3264 struct ieee80211_vif_chanctx_switch *vifs)
3265{
3266 int ret;
3267
3268 mutex_lock(&mvm->mutex);
3269 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3270
3271 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3272 true);
3273 if (ret) {
3274 IWL_ERR(mvm,
3275 "failed to assign new_ctx during channel switch\n");
3276 goto out_reassign;
3277 }
3278
3279 goto out;
3280
3281out_reassign:
3282 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3283 true)) {
3284 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3285 goto out_restart;
3286 }
3287
3288 goto out;
3289
3290out_restart:
3291 /* things keep failing, better restart the hw */
3292 iwl_mvm_nic_restart(mvm, false);
3293
3294out:
3295 mutex_unlock(&mvm->mutex);
3296
3297 return ret;
3298}
3299
50cc9574
LC		 3300static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3301 struct ieee80211_vif_chanctx_switch *vifs,
3302 int n_vifs,
3303 enum ieee80211_chanctx_switch_mode mode)
3304{
3305 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3306 int ret;
3307
3308 /* we only support a single-vif right now */
3309 if (n_vifs > 1)
3310 return -EOPNOTSUPP;
3311
3312 switch (mode) {
3313 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3314 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3315 break;
3316 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3317 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3318 break;
3319 default:
3320 ret = -EOPNOTSUPP;
3321 break;
3322 }
3323
b08c1d97
LC		 3324 return ret;
3325}
3326
8ca151b5
JB		 3327static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3328 struct ieee80211_sta *sta,
3329 bool set)
3330{
3331 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3332 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3333
3334 if (!mvm_sta || !mvm_sta->vif) {
3335 IWL_ERR(mvm, "Station is not associated to a vif\n");
3336 return -EINVAL;
3337 }
3338
3339 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3340}
3341
507cadf2
DS		 3342#ifdef CONFIG_NL80211_TESTMODE
3343static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3344 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3345 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3346 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3347};
3348
3349static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3350 struct ieee80211_vif *vif,
3351 void *data, int len)
3352{
3353 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3354 int err;
3355 u32 noa_duration;
3356
3357 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3358 if (err)
3359 return err;
3360
3361 if (!tb[IWL_MVM_TM_ATTR_CMD])
3362 return -EINVAL;
3363
3364 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3365 case IWL_MVM_TM_CMD_SET_NOA:
3366 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3367 !vif->bss_conf.enable_beacon ||
3368 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3369 return -EINVAL;
3370
3371 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3372 if (noa_duration >= vif->bss_conf.beacon_int)
3373 return -EINVAL;
3374
3375 mvm->noa_duration = noa_duration;
3376 mvm->noa_vif = vif;
3377
7754ae79 3378 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3379 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3380 /* must be associated client vif - ignore authorized */
3381 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3382 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3383 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3384 return -EINVAL;
3385
3386 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3387 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3388 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3389 }
3390
3391 return -EOPNOTSUPP;
3392}
3393
3394static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3395 struct ieee80211_vif *vif,
3396 void *data, int len)
3397{
3398 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3399 int err;
3400
3401 mutex_lock(&mvm->mutex);
3402 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3403 mutex_unlock(&mvm->mutex);
3404
3405 return err;
3406}
3407#endif
3408
622e3f9b
LC		 3409static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3410 struct ieee80211_vif *vif,
3411 struct ieee80211_channel_switch *chsw)
3412{
3413 /* By implementing this operation, we prevent mac80211 from
3414 * starting its own channel switch timer, so that we can call
3415 * ieee80211_chswitch_done() ourselves at the right time
3416 * (which is when the absence time event starts).
3417 */
3418
3419 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3420 "dummy channel switch op\n");
3421}
3422
f028905c
LC		 3423static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3424 struct ieee80211_vif *vif,
3425 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3426{
3427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3428 struct ieee80211_vif *csa_vif;
f6c34820 3429 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3430 u32 apply_time;
f028905c 3431 int ret;
bd3398e2
AO		 3432
3433 mutex_lock(&mvm->mutex);
664322fa 3434
81d62d5a
JB		 3435 mvmvif->csa_failed = false;
3436
6b20d774 3437 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3438 chsw->chandef.center_freq1);
6b20d774 3439
21023b1e 3440 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3441
6b20d774
LC		 3442 switch (vif->type) {
3443 case NL80211_IFTYPE_AP:
3444 csa_vif =
3445 rcu_dereference_protected(mvm->csa_vif,
3446 lockdep_is_held(&mvm->mutex));
3447 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3448 "Another CSA is already in progress")) {
3449 ret = -EBUSY;
3450 goto out_unlock;
3451 }
3452
3453 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3454
7ef0aab6
AO		 3455 if (WARN_ONCE(mvmvif->csa_countdown,
3456 "Previous CSA countdown didn't complete")) {
3457 ret = -EBUSY;
3458 goto out_unlock;
3459 }
3460
6b20d774 3461 break;
dc88b4ba 3462 case NL80211_IFTYPE_STATION:
4500e133
LC		 3463 /* Schedule the time event to a bit before beacon 1,
3464 * to make sure we're in the new channel when the
3465 * GO/AP arrives.
3466 */
3467 apply_time = chsw->device_timestamp +
3468 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3469 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3470
3471 if (chsw->block_tx)
3472 iwl_mvm_csa_client_absent(mvm, vif);
3473
4500e133 3474 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3475 apply_time);
c6e0a3e0
LC		 3476 if (mvmvif->bf_data.bf_enabled) {
3477 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3478 if (ret)
3479 goto out_unlock;
3480 }
3481
dc88b4ba 3482 break;
6b20d774
LC		 3483 default:
3484 break;
3485 }
bd3398e2 3486
f6c34820
LC		 3487 mvmvif->ps_disabled = true;
3488
3489 ret = iwl_mvm_power_update_ps(mvm);
3490 if (ret)
3491 goto out_unlock;
f028905c 3492
e198f5e7
AN		 3493 /* we won't be on this channel any longer */
3494 iwl_mvm_teardown_tdls_peers(mvm);
3495
bd3398e2
AO		 3496out_unlock:
3497 mutex_unlock(&mvm->mutex);
f028905c
LC		 3498
3499 return ret;
bd3398e2
AO		 3500}
3501
f6c34820
LC		 3502static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3503 struct ieee80211_vif *vif)
3504{
3505 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3506 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3507 int ret;
3508
3509 mutex_lock(&mvm->mutex);
3510
81d62d5a
JB		 3511 if (mvmvif->csa_failed) {
3512 mvmvif->csa_failed = false;
3513 ret = -EIO;
3514 goto out_unlock;
3515 }
3516
a57c688d
LC		 3517 if (vif->type == NL80211_IFTYPE_STATION) {
3518 struct iwl_mvm_sta *mvmsta;
3519
3520 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3521 mvmvif->ap_sta_id);
3522
3523 if (WARN_ON(!mvmsta)) {
3524 ret = -EIO;
3525 goto out_unlock;
3526 }
3527
3528 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3529
3530 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3531
3532 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3533 if (ret)
3534 goto out_unlock;
686e7fe1
LC		 3535
3536 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3537 }
3538
f6c34820
LC		 3539 mvmvif->ps_disabled = false;
3540
3541 ret = iwl_mvm_power_update_ps(mvm);
3542
a57c688d 3543out_unlock:
f6c34820
LC		 3544 mutex_unlock(&mvm->mutex);
3545
3546 return ret;
3547}
3548
c5b0e7c0
EG		 3549static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3550 struct ieee80211_vif *vif, u32 queues, bool drop)
3551{
3552 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3553 struct iwl_mvm_vif *mvmvif;
3554 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3555 struct ieee80211_sta *sta;
3556 int i;
3557 u32 msk = 0;
c5b0e7c0
EG		 3558
3559 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3560 return;
3561
3562 mutex_lock(&mvm->mutex);
3563 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3564
a0f6bf2a
AN		 3565 /* flush the AP-station and all TDLS peers */
3566 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3567 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3568 lockdep_is_held(&mvm->mutex));
3569 if (IS_ERR_OR_NULL(sta))
3570 continue;
3571
3572 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3573 if (mvmsta->vif != vif)
3574 continue;
3575
3576 /* make sure only TDLS peers or the AP are flushed */
3577 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3578
3579 msk |= mvmsta->tfd_queue_msk;
480acbce 3580 }
c5b0e7c0 3581
6d440b25 3582 if (drop) {
5888a40c 3583 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3584 IWL_ERR(mvm, "flush request fail\n");
3585 mutex_unlock(&mvm->mutex);
3586 } else {
3587 mutex_unlock(&mvm->mutex);
4e6c48e0 3588
6d440b25
EG		 3589 /* this can take a while, and we may need/want other operations
3590 * to succeed while doing this, so do it without the mutex held
3591 */
3592 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3593 }
c5b0e7c0
EG		 3594}
3595
91a8bcde
JB		 3596static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3597 struct survey_info *survey)
3598{
3599 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3600 int ret;
3601
3602 memset(survey, 0, sizeof(*survey));
3603
3604 /* only support global statistics right now */
3605 if (idx != 0)
3606 return -ENOENT;
3607
859d914c 3608 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3609 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3610 return -ENOENT;
3611
3612 mutex_lock(&mvm->mutex);
3613
3614 if (mvm->ucode_loaded) {
33cef925 3615 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3616 if (ret)
3617 goto out;
3618 }
3619
3620 survey->filled = SURVEY_INFO_TIME |
3621 SURVEY_INFO_TIME_RX |
3622 SURVEY_INFO_TIME_TX |
3623 SURVEY_INFO_TIME_SCAN;
3624 survey->time = mvm->accu_radio_stats.on_time_rf +
3625 mvm->radio_stats.on_time_rf;
3626 do_div(survey->time, USEC_PER_MSEC);
3627
3628 survey->time_rx = mvm->accu_radio_stats.rx_time +
3629 mvm->radio_stats.rx_time;
3630 do_div(survey->time_rx, USEC_PER_MSEC);
3631
3632 survey->time_tx = mvm->accu_radio_stats.tx_time +
3633 mvm->radio_stats.tx_time;
3634 do_div(survey->time_tx, USEC_PER_MSEC);
3635
3636 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3637 mvm->radio_stats.on_time_scan;
3638 do_div(survey->time_scan, USEC_PER_MSEC);
3639
10a7c028 3640 ret = 0;
91a8bcde
JB		 3641 out:
3642 mutex_unlock(&mvm->mutex);
3643 return ret;
3644}
3645
33cef925
JB		 3646static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3647 struct ieee80211_vif *vif,
3648 struct ieee80211_sta *sta,
3649 struct station_info *sinfo)
3650{
3651 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3653 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3654
859d914c
JB		 3655 if (fw_has_capa(&mvm->fw->ucode_capa,
3656 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3657 return;
3658
3659 /* if beacon filtering isn't on mac80211 does it anyway */
3660 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3661 return;
3662
3663 if (!vif->bss_conf.assoc)
3664 return;
3665
3666 mutex_lock(&mvm->mutex);
3667
3668 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3669 goto unlock;
3670
3671 if (iwl_mvm_request_statistics(mvm, false))
3672 goto unlock;
3673
3674 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3675 mvmvif->beacon_stats.accu_num_beacons;
3676 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3677 if (mvmvif->beacon_stats.avg_signal) {
3678 /* firmware only reports a value after RXing a few beacons */
3679 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3680 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3681 }
3682 unlock:
3683 mutex_unlock(&mvm->mutex);
3684}
3685
4203263d
EG		 3686static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3687 struct ieee80211_vif *vif,
3688 const struct ieee80211_event *event)
d42f5350 3689{
5d4f929e 3690#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3691 do { \
3692 if ((_cnt) && --(_cnt)) \
3693 break; \
5d4f929e 3694 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3695 } while (0)
3696
d42f5350
EG		 3697 struct iwl_fw_dbg_trigger_tlv *trig;
3698 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3699
3700 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3701 return;
3702
d42f5350
EG		 3703 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3704 trig_mlme = (void *)trig->data;
3705 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3706 return;
3707
d42f5350
EG		 3708 if (event->u.mlme.data == ASSOC_EVENT) {
3709 if (event->u.mlme.status == MLME_DENIED)
3710 CHECK_MLME_TRIGGER(mvm, trig, buf,
3711 trig_mlme->stop_assoc_denied,
3712 "DENIED ASSOC: reason %d",
3713 event->u.mlme.reason);
3714 else if (event->u.mlme.status == MLME_TIMEOUT)
3715 CHECK_MLME_TRIGGER(mvm, trig, buf,
3716 trig_mlme->stop_assoc_timeout,
3717 "ASSOC TIMEOUT");
3718 } else if (event->u.mlme.data == AUTH_EVENT) {
3719 if (event->u.mlme.status == MLME_DENIED)
3720 CHECK_MLME_TRIGGER(mvm, trig, buf,
3721 trig_mlme->stop_auth_denied,
3722 "DENIED AUTH: reason %d",
3723 event->u.mlme.reason);
3724 else if (event->u.mlme.status == MLME_TIMEOUT)
3725 CHECK_MLME_TRIGGER(mvm, trig, buf,
3726 trig_mlme->stop_auth_timeout,
3727 "AUTH TIMEOUT");
3728 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3729 CHECK_MLME_TRIGGER(mvm, trig, buf,
3730 trig_mlme->stop_rx_deauth,
3731 "DEAUTH RX %d", event->u.mlme.reason);
3732 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3733 CHECK_MLME_TRIGGER(mvm, trig, buf,
3734 trig_mlme->stop_tx_deauth,
3735 "DEAUTH TX %d", event->u.mlme.reason);
3736 }
3737#undef CHECK_MLME_TRIGGER
3738}
3739
4203263d
EG		 3740static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
3741 struct ieee80211_vif *vif,
3742 const struct ieee80211_event *event)
3743{
3744 struct iwl_fw_dbg_trigger_tlv *trig;
3745 struct iwl_fw_dbg_trigger_ba *ba_trig;
3746
3747 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3748 return;
3749
3750 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3751 ba_trig = (void *)trig->data;
3752 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3753 return;
3754
3755 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
3756 return;
3757
3758 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3759 "BAR received from %pM, tid %d, ssn %d",
3760 event->u.ba.sta->addr, event->u.ba.tid,
3761 event->u.ba.ssn);
3762}
3763
3764static void
3765iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
3766 struct ieee80211_vif *vif,
3767 const struct ieee80211_event *event)
3768{
3769 struct iwl_fw_dbg_trigger_tlv *trig;
3770 struct iwl_fw_dbg_trigger_ba *ba_trig;
3771
3772 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3773 return;
3774
3775 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3776 ba_trig = (void *)trig->data;
3777 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3778 return;
3779
3780 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
3781 return;
3782
3783 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3784 "Frame from %pM timed out, tid %d",
3785 event->u.ba.sta->addr, event->u.ba.tid);
3786}
3787
3788static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3789 struct ieee80211_vif *vif,
3790 const struct ieee80211_event *event)
3791{
3792 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3793
3794 switch (event->type) {
3795 case MLME_EVENT:
3796 iwl_mvm_event_mlme_callback(mvm, vif, event);
3797 break;
3798 case BAR_RX_EVENT:
3799 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
3800 break;
3801 case BA_FRAME_TIMEOUT:
3802 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
3803 break;
3804 default:
3805 break;
3806 }
3807}
3808
e5209263 3809const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3810 .tx = iwl_mvm_mac_tx,
3811 .ampdu_action = iwl_mvm_mac_ampdu_action,
3812 .start = iwl_mvm_mac_start,
cf2c92d8 3813 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3814 .stop = iwl_mvm_mac_stop,
3815 .add_interface = iwl_mvm_mac_add_interface,
3816 .remove_interface = iwl_mvm_mac_remove_interface,
3817 .config = iwl_mvm_mac_config,
e59647ea 3818 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 3819 .configure_filter = iwl_mvm_configure_filter,
effd1929 3820 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 3821 .bss_info_changed = iwl_mvm_bss_info_changed,
3822 .hw_scan = iwl_mvm_mac_hw_scan,
3823 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3824 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3825 .sta_state = iwl_mvm_mac_sta_state,
3826 .sta_notify = iwl_mvm_mac_sta_notify,
3827 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3828 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3829 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3830 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3831 .conf_tx = iwl_mvm_mac_conf_tx,
3832 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3833 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3834 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3835 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3836 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3837 .set_key = iwl_mvm_mac_set_key,
3838 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3839 .remain_on_channel = iwl_mvm_roc,
3840 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3841 .add_chanctx = iwl_mvm_add_chanctx,
3842 .remove_chanctx = iwl_mvm_remove_chanctx,
3843 .change_chanctx = iwl_mvm_change_chanctx,
3844 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3845 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3846 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3847
5023d966
JB		 3848 .start_ap = iwl_mvm_start_ap_ibss,
3849 .stop_ap = iwl_mvm_stop_ap_ibss,
3850 .join_ibss = iwl_mvm_start_ap_ibss,
3851 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3852
3853 .set_tim = iwl_mvm_set_tim,
3854
622e3f9b 3855 .channel_switch = iwl_mvm_channel_switch,
f028905c 3856 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 3857 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 3858
1d3c3f63
AN		 3859 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3860 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3861 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3862
d42f5350
EG		 3863 .event_callback = iwl_mvm_mac_event_callback,
3864
507cadf2
DS		 3865 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3866
8ca151b5
JB		 3867#ifdef CONFIG_PM_SLEEP
3868 /* look at d3.c */
3869 .suspend = iwl_mvm_suspend,
3870 .resume = iwl_mvm_resume,
3871 .set_wakeup = iwl_mvm_set_wakeup,
3872 .set_rekey_data = iwl_mvm_set_rekey_data,
3873#if IS_ENABLED(CONFIG_IPV6)
3874 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3875#endif
3876 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3877#endif
91a8bcde 3878 .get_survey = iwl_mvm_mac_get_survey,
33cef925 3879 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 3880};
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