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cfg80211/mac80211: use to_delayed_work
[mirror_ubuntu-bionic-kernel.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
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8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
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:
cb2f8277 29 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 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);
909ddf0b 441 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 442 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
8ca151b5 443
2d7cf549
JB		 444 if (mvm->trans->max_skb_frags)
445 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
446
19e737c9 447 hw->queues = mvm->first_agg_queue;
398e8c6c 448 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 449 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
450 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 451 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
452 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 453 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 454 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
455 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 456
5f4c02e2
JB		 457 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
458 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
459 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
460 hw->wiphy->cipher_suites = mvm->ciphers;
461
8ca151b5
JB		 462 /*
463 * Enable 11w if advertised by firmware and software crypto
464 * is not enabled (as the firmware will interpret some mgmt
465 * packets, so enabling it with software crypto isn't safe)
466 */
467 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
5f4c02e2 468 !iwlwifi_mod_params.sw_crypto) {
30686bf7 469 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 470 mvm->ciphers[hw->wiphy->n_cipher_suites] =
471 WLAN_CIPHER_SUITE_AES_CMAC;
472 hw->wiphy->n_cipher_suites++;
473 }
474
475 /* currently FW API supports only one optional cipher scheme */
476 if (mvm->fw->cs[0].cipher) {
477 mvm->hw->n_cipher_schemes = 1;
478 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
479 mvm->ciphers[hw->wiphy->n_cipher_suites] =
480 mvm->fw->cs[0].cipher;
481 hw->wiphy->n_cipher_suites++;
482 }
8ca151b5 483
30686bf7 484 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 485 hw->wiphy->features |=
486 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 487 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
488 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 489
8ca151b5
JB		 490 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
491 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 492 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 493
494 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 495 BIT(NL80211_IFTYPE_P2P_CLIENT) |
496 BIT(NL80211_IFTYPE_AP) |
497 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 498 BIT(NL80211_IFTYPE_P2P_DEVICE) |
499 BIT(NL80211_IFTYPE_ADHOC);
5023d966 500
a2f73b6c 501 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 502 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
503 if (iwl_mvm_is_lar_supported(mvm))
504 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
505 else
506 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
507 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 508
3e56eadf
JB		 509 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
510 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
511
94bbed72 512 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 513
8ca151b5
JB		 514 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
515 hw->wiphy->n_iface_combinations =
516 ARRAY_SIZE(iwl_mvm_iface_combinations);
517
c451e6d4 518 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 519 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 520 /* we can compensate an offset of up to 3 channels = 15 MHz */
521 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 522
523 /* Extract MAC address */
524 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
525 hw->wiphy->addresses = mvm->addresses;
526 hw->wiphy->n_addresses = 1;
831e85f3
IP		 527
528 /* Extract additional MAC addresses if available */
529 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
530 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
531
532 for (i = 1; i < num_mac; i++) {
533 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 534 ETH_ALEN);
831e85f3 535 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 536 hw->wiphy->n_addresses++;
537 }
538
fe0f2de3
IP		 539 iwl_mvm_reset_phy_ctxts(mvm);
540
999d2568 541 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 542
8ca151b5
JB		 543 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
544
c7d42480 545 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 546 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
547 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
548
859d914c 549 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 550 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
551 else
552 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
553
8ca151b5
JB		 554 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
555 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
556 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 557 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 558 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
559 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
560
859d914c
JB		 561 if (fw_has_capa(&mvm->fw->ucode_capa,
562 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
563 fw_has_api(&mvm->fw->ucode_capa,
564 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 565 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
566 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
567 }
568
8ca151b5
JB		 569 hw->wiphy->hw_version = mvm->trans->hw_id;
570
ade50652 571 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 572 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
573 else
574 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
575
9954b37c
EG		 576 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
577 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
578 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
579 /* we create the 802.11 header and zero length SSID IE. */
580 hw->wiphy->max_sched_scan_ie_len =
581 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 582 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
583 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
584
585 /*
586 * the firmware uses u8 for num of iterations, but 0xff is saved for
587 * infinite loop, so the maximum number of iterations is actually 254.
588 */
589 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 590
8ca151b5 591 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 592 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 593 NL80211_FEATURE_P2P_GO_OPPPS |
594 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 595 NL80211_FEATURE_STATIC_SMPS |
596 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 597
859d914c
JB		 598 if (fw_has_capa(&mvm->fw->ucode_capa,
599 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 600 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 601 if (fw_has_capa(&mvm->fw->ucode_capa,
602 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 603 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 604
859d914c
JB		 605 if (fw_has_capa(&mvm->fw->ucode_capa,
606 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 607 hw->wiphy->features |=
608 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
609
859d914c
JB		 610 if (fw_has_capa(&mvm->fw->ucode_capa,
611 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 612 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
613
8ca151b5
JB		 614 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
615
616#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 617 if (iwl_mvm_is_d0i3_supported(mvm) &&
618 device_can_wakeup(mvm->trans->dev)) {
619 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
620 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 621 }
622
623 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 624 mvm->trans->ops->d3_suspend &&
625 mvm->trans->ops->d3_resume &&
626 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 627 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
628 WIPHY_WOWLAN_DISCONNECT |
629 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
630 WIPHY_WOWLAN_RFKILL_RELEASE |
631 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 632 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 633 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
634 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
635 WIPHY_WOWLAN_4WAY_HANDSHAKE;
636
637 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
638 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
639 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 640 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 641 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
642 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 643 }
644#endif
645
77736923
EP		 646#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
647 /* assign default bcast filtering configuration */
648 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
649#endif
650
8ca151b5
JB		 651 ret = iwl_mvm_leds_init(mvm);
652 if (ret)
653 return ret;
654
859d914c
JB		 655 if (fw_has_capa(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 657 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
658 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 659 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 660 }
661
859d914c
JB		 662 if (fw_has_capa(&mvm->fw->ucode_capa,
663 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 664 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
665 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
666 }
667
93190fb0
AA		 668 hw->netdev_features |= mvm->cfg->features;
669 if (!iwl_mvm_is_csum_supported(mvm))
670 hw->netdev_features &= ~NETIF_F_RXCSUM;
671
41837ca9 672 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
a3713f8b
EG		 673 hw->netdev_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
674 NETIF_F_TSO | NETIF_F_TSO6;
41837ca9 675
b7327d89
EG		 676 ret = ieee80211_register_hw(mvm->hw);
677 if (ret)
678 iwl_mvm_leds_exit(mvm);
679
680 return ret;
8ca151b5
JB		 681}
682
b2492501
AN		 683static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
684 struct ieee80211_sta *sta,
685 struct sk_buff *skb)
686{
687 struct iwl_mvm_sta *mvmsta;
688 bool defer = false;
689
690 /*
691 * double check the IN_D0I3 flag both before and after
692 * taking the spinlock, in order to prevent taking
693 * the spinlock when not needed.
694 */
695 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
696 return false;
697
698 spin_lock(&mvm->d0i3_tx_lock);
699 /*
700 * testing the flag again ensures the skb dequeue
701 * loop (on d0i3 exit) hasn't run yet.
702 */
703 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
704 goto out;
705
706 mvmsta = iwl_mvm_sta_from_mac80211(sta);
707 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
708 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
709 goto out;
710
711 __skb_queue_tail(&mvm->d0i3_tx, skb);
712 ieee80211_stop_queues(mvm->hw);
713
714 /* trigger wakeup */
715 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
716 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
717
718 defer = true;
719out:
720 spin_unlock(&mvm->d0i3_tx_lock);
721 return defer;
722}
723
8ca151b5
JB		 724static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
725 struct ieee80211_tx_control *control,
726 struct sk_buff *skb)
727{
728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 729 struct ieee80211_sta *sta = control->sta;
730 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
731 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 732
9ee718aa
EL		 733 if (iwl_mvm_is_radio_killed(mvm)) {
734 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 735 goto drop;
736 }
737
398e8c6c 738 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 739 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
740 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 741 goto drop;
742
3e56eadf
JB		 743 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
744 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
745 ieee80211_is_mgmt(hdr->frame_control) &&
746 !ieee80211_is_deauth(hdr->frame_control) &&
747 !ieee80211_is_disassoc(hdr->frame_control) &&
748 !ieee80211_is_action(hdr->frame_control)))
749 sta = NULL;
750
751 if (sta) {
b2492501
AN		 752 if (iwl_mvm_defer_tx(mvm, sta, skb))
753 return;
3e56eadf 754 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 755 goto drop;
756 return;
757 }
758
759 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
760 goto drop;
761 return;
762 drop:
763 ieee80211_free_txskb(hw, skb);
764}
765
205e2210
EG		 766static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
767{
768 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
769 return false;
770 return true;
771}
772
773static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
774{
775 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
776 return false;
777 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
778 return true;
779
780 /* enabled by default */
781 return true;
782}
783
4203263d
EG		 784#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
785 do { \
786 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
787 break; \
788 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
789 } while (0)
790
791static void
792iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
793 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
794 enum ieee80211_ampdu_mlme_action action)
795{
796 struct iwl_fw_dbg_trigger_tlv *trig;
797 struct iwl_fw_dbg_trigger_ba *ba_trig;
798
799 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
800 return;
801
802 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
803 ba_trig = (void *)trig->data;
804
805 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
806 return;
807
808 switch (action) {
809 case IEEE80211_AMPDU_TX_OPERATIONAL: {
810 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
811 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
812
813 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
814 "TX AGG START: MAC %pM tid %d ssn %d\n",
815 sta->addr, tid, tid_data->ssn);
816 break;
817 }
818 case IEEE80211_AMPDU_TX_STOP_CONT:
819 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
820 "TX AGG STOP: MAC %pM tid %d\n",
821 sta->addr, tid);
822 break;
823 case IEEE80211_AMPDU_RX_START:
824 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
825 "RX AGG START: MAC %pM tid %d ssn %d\n",
826 sta->addr, tid, rx_ba_ssn);
827 break;
828 case IEEE80211_AMPDU_RX_STOP:
829 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
830 "RX AGG STOP: MAC %pM tid %d\n",
831 sta->addr, tid);
832 break;
833 default:
834 break;
835 }
836}
837
8ca151b5
JB		 838static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
839 struct ieee80211_vif *vif,
840 enum ieee80211_ampdu_mlme_action action,
841 struct ieee80211_sta *sta, u16 tid,
e3abc8ff 842 u16 *ssn, u8 buf_size, bool amsdu)
8ca151b5
JB		 843{
844 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
845 int ret;
b2492501 846 bool tx_agg_ref = false;
8ca151b5
JB		 847
848 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
849 sta->addr, tid, action);
850
851 if (!(mvm->nvm_data->sku_cap_11n_enable))
852 return -EACCES;
853
b2492501 854 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 855 switch (action) {
856 case IEEE80211_AMPDU_TX_START:
857 case IEEE80211_AMPDU_TX_STOP_CONT:
858 case IEEE80211_AMPDU_TX_STOP_FLUSH:
859 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
860 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 861 /*
9256c205
EP		 862 * for tx start, wait synchronously until D0i3 exit to
863 * get the correct sequence number for the tid.
864 * additionally, some other ampdu actions use direct
865 * target access, which is not handled automatically
866 * by the trans layer (unlike commands), so wait for
867 * d0i3 exit in these cases as well.
b2492501 868 */
d40fc489
GG		 869 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
870 if (ret)
871 return ret;
872
873 tx_agg_ref = true;
9256c205
EP		 874 break;
875 default:
876 break;
b2492501
AN		 877 }
878
8ca151b5
JB		 879 mutex_lock(&mvm->mutex);
880
881 switch (action) {
882 case IEEE80211_AMPDU_RX_START:
205e2210 883 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 884 ret = -EINVAL;
885 break;
886 }
887 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
888 break;
889 case IEEE80211_AMPDU_RX_STOP:
890 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
891 break;
892 case IEEE80211_AMPDU_TX_START:
205e2210 893 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 894 ret = -EINVAL;
895 break;
896 }
8ca151b5
JB		 897 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
898 break;
899 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 900 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
901 break;
8ca151b5
JB		 902 case IEEE80211_AMPDU_TX_STOP_FLUSH:
903 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 904 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 905 break;
906 case IEEE80211_AMPDU_TX_OPERATIONAL:
907 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
908 break;
909 default:
910 WARN_ON_ONCE(1);
911 ret = -EINVAL;
912 break;
913 }
4203263d
EG		 914
915 if (!ret) {
916 u16 rx_ba_ssn = 0;
917
918 if (action == IEEE80211_AMPDU_RX_START)
919 rx_ba_ssn = *ssn;
920
921 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
922 rx_ba_ssn, action);
923 }
8ca151b5
JB		 924 mutex_unlock(&mvm->mutex);
925
b2492501
AN		 926 /*
927 * If the tid is marked as started, we won't use it for offloaded
928 * traffic on the next D0i3 entry. It's safe to unref.
929 */
930 if (tx_agg_ref)
931 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
932
8ca151b5
JB		 933 return ret;
934}
935
936static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
937 struct ieee80211_vif *vif)
938{
939 struct iwl_mvm *mvm = data;
940 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
941
942 mvmvif->uploaded = false;
943 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
944
8ca151b5
JB		 945 spin_lock_bh(&mvm->time_event_lock);
946 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
947 spin_unlock_bh(&mvm->time_event_lock);
948
fe0f2de3 949 mvmvif->phy_ctxt = NULL;
8a275bad 950 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 951}
952
953static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
954{
58629d9d
JB		 955 /* clear the D3 reconfig, we only need it to avoid dumping a
956 * firmware coredump on reconfiguration, we shouldn't do that
957 * on D3->D0 transition
958 */
b6eaa45a
EG		 959 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
960 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 961 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 962 }
1bd3cbc1 963
744cb695
EP		 964 /* cleanup all stale references (scan, roc), but keep the
965 * ucode_down ref until reconfig is complete
966 */
967 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
968
8ca151b5 969 iwl_trans_stop_device(mvm->trans);
8ca151b5 970
9af91f46 971 mvm->scan_status = 0;
b1873300 972 mvm->ps_disabled = false;
31b8b343 973 mvm->calibrating = false;
8ca151b5
JB		 974
975 /* just in case one was running */
305d236e 976 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 977 ieee80211_remain_on_channel_expired(mvm->hw);
978
737719fe
AN		 979 /*
980 * cleanup all interfaces, even inactive ones, as some might have
981 * gone down during the HW restart
982 */
983 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 984
fe0f2de3 985 mvm->p2p_device_vif = NULL;
37577fe2 986 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 987
988 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 989 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
8ca151b5 990 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 991 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 992 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
993 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
994 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
995 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
996 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
997 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 998
999 ieee80211_wake_queues(mvm->hw);
1000
228670b2
EP		 1001 /* clear any stale d0i3 state */
1002 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1003
8ca151b5 1004 mvm->vif_count = 0;
113a0447 1005 mvm->rx_ba_sessions = 0;
d2709ad7 1006 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1007
1008 /* keep statistics ticking */
1009 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1010}
1011
a0a09243 1012int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1013{
8ca151b5
JB		 1014 int ret;
1015
a0a09243 1016 lockdep_assert_held(&mvm->mutex);
8ca151b5 1017
a42b2af3
LC		 1018 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1019 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1020 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1021 } else {
1022 /* Hold the reference to prevent runtime suspend while
1023 * the start procedure runs. It's a bit confusing
1024 * that the UCODE_DOWN reference is taken, but it just
1025 * means "UCODE is not UP yet". ( TODO: rename this
1026 * reference).
1027 */
1028 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1029 }
8ca151b5 1030 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1031
1032 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1033 /* Something went wrong - we need to finish some cleanup
1034 * that normally iwl_mvm_mac_restart_complete() below
1035 * would do.
1036 */
1037 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1038 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1039 }
1040
a0a09243
LC		 1041 return ret;
1042}
1043
1044static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1045{
1046 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1047 int ret;
1048
37948fcf
EP		 1049 /* Some hw restart cleanups must not hold the mutex */
1050 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1051 /*
1052 * Make sure we are out of d0i3. This is needed
1053 * to make sure the reference accounting is correct
1054 * (and there is no stale d0i3_exit_work).
1055 */
1056 wait_event_timeout(mvm->d0i3_exit_waitq,
1057 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1058 &mvm->status),
1059 HZ);
1060 }
1061
a0a09243
LC		 1062 mutex_lock(&mvm->mutex);
1063 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1064 mutex_unlock(&mvm->mutex);
1065
1066 return ret;
1067}
1068
cf2c92d8 1069static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1070{
8ca151b5
JB		 1071 int ret;
1072
1073 mutex_lock(&mvm->mutex);
1074
1075 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1076 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1077 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1078 if (ret)
1079 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1080 ret);
1081
7498cf4c
EP		 1082 /* allow transport/FW low power modes */
1083 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1084
cbd2ae2d
AN		 1085 /*
1086 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1087 * of packets the FW sent out, so we must reconnect.
1088 */
1089 iwl_mvm_teardown_tdls_peers(mvm);
1090
8ca151b5
JB		 1091 mutex_unlock(&mvm->mutex);
1092}
1093
088070a2
EP		 1094static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1095{
b7282643
LC		 1096 if (iwl_mvm_is_d0i3_supported(mvm) &&
1097 iwl_mvm_enter_d0i3_on_suspend(mvm))
1098 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1099 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1100 &mvm->status),
1101 HZ),
1102 "D0i3 exit on resume timed out\n");
088070a2
EP		 1103}
1104
cf2c92d8
EP		 1105static void
1106iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1107 enum ieee80211_reconfig_type reconfig_type)
1108{
1109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1110
1111 switch (reconfig_type) {
1112 case IEEE80211_RECONFIG_TYPE_RESTART:
1113 iwl_mvm_restart_complete(mvm);
1114 break;
1115 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1116 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1117 break;
1118 }
1119}
1120
a0a09243 1121void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1122{
a0a09243 1123 lockdep_assert_held(&mvm->mutex);
7498cf4c 1124
91a8bcde
JB		 1125 /* firmware counters are obviously reset now, but we shouldn't
1126 * partially track so also clear the fw_reset_accu counters.
1127 */
1128 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1129
8ca151b5
JB		 1130 /* async_handlers_wk is now blocked */
1131
1132 /*
1133 * The work item could be running or queued if the
1134 * ROC time event stops just as we get here.
1135 */
c779273b 1136 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1137
1138 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1139
1140 iwl_mvm_async_handlers_purge(mvm);
1141 /* async_handlers_list is empty and will stay empty: HW is stopped */
1142
1143 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1144 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1145
0a79a0c0
EP		 1146 /*
1147 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1148 * won't be called in this case).
8b2b9fbf
AN		 1149 * But make sure to cleanup interfaces that have gone down before/during
1150 * HW restart was requested.
0a79a0c0 1151 */
8b2b9fbf
AN		 1152 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1153 ieee80211_iterate_interfaces(mvm->hw, 0,
1154 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1155
963221be
AB		 1156 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1157 * make sure there's nothing left there and warn if any is found.
1158 */
859d914c 1159 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1160 int i;
1161
507e4cda 1162 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1163 if (WARN_ONCE(mvm->scan_uid_status[i],
1164 "UMAC scan UID %d status was not cleaned\n",
1165 i))
1166 mvm->scan_uid_status[i] = 0;
963221be
AB		 1167 }
1168 }
1169
bc44886d 1170 mvm->ucode_loaded = false;
a0a09243 1171}
bc44886d 1172
a0a09243
LC		 1173static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1174{
1175 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1176
1177 flush_work(&mvm->d0i3_exit_work);
1178 flush_work(&mvm->async_handlers_wk);
d2709ad7 1179 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1180 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1181
1182 mutex_lock(&mvm->mutex);
1183 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1184 mutex_unlock(&mvm->mutex);
1185
1186 /*
1187 * The worker might have been waiting for the mutex, let it run and
1188 * discover that its list is now empty.
1189 */
1190 cancel_work_sync(&mvm->async_handlers_wk);
1191}
1192
fe0f2de3
IP		 1193static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1194{
1195 u16 i;
1196
1197 lockdep_assert_held(&mvm->mutex);
1198
1199 for (i = 0; i < NUM_PHY_CTX; i++)
1200 if (!mvm->phy_ctxts[i].ref)
1201 return &mvm->phy_ctxts[i];
1202
1203 IWL_ERR(mvm, "No available PHY context\n");
1204 return NULL;
1205}
1206
d44c3fe6
AA		 1207static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1208 s16 tx_power)
1209{
1210 struct iwl_dev_tx_power_cmd cmd = {
da03f029
JB		 1211 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1212 .v2.mac_context_id =
d44c3fe6 1213 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
da03f029 1214 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1215 };
da03f029 1216 int len = sizeof(cmd);
d44c3fe6 1217
d44c3fe6 1218 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
da03f029 1219 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1220
da03f029
JB		 1221 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1222 len = sizeof(cmd.v2);
1223
1224 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1225}
1226
8ca151b5
JB		 1227static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1228 struct ieee80211_vif *vif)
1229{
1230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1231 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1232 int ret;
1233
aa5e1832
EG		 1234 mvmvif->mvm = mvm;
1235
d40fc489
GG		 1236 /*
1237 * make sure D0i3 exit is completed, otherwise a target access
1238 * during tx queue configuration could be done when still in
1239 * D0i3 state.
1240 */
1241 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1242 if (ret)
1243 return ret;
1244
8ca151b5
JB		 1245 /*
1246 * Not much to do here. The stack will not allow interface
1247 * types or combinations that we didn't advertise, so we
1248 * don't really have to check the types.
1249 */
1250
1251 mutex_lock(&mvm->mutex);
1252
33cef925
JB		 1253 /* make sure that beacon statistics don't go backwards with FW reset */
1254 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1255 mvmvif->beacon_stats.accu_num_beacons +=
1256 mvmvif->beacon_stats.num_beacons;
1257
e89044d7 1258 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1259 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1260 if (ret)
1261 goto out_unlock;
1262
1c2abf72 1263 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1264 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1265 mvm->vif_count++;
ea183d02 1266
8ca151b5
JB		 1267 /*
1268 * The AP binding flow can be done only after the beacon
1269 * template is configured (which happens only in the mac80211
1270 * start_ap() flow), and adding the broadcast station can happen
1271 * only after the binding.
1272 * In addition, since modifying the MAC before adding a bcast
1273 * station is not allowed by the FW, delay the adding of MAC context to
1274 * the point where we can also add the bcast station.
1275 * In short: there's not much we can do at this point, other than
1276 * allocating resources :)
1277 */
5023d966
JB		 1278 if (vif->type == NL80211_IFTYPE_AP ||
1279 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1280 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1281 if (ret) {
1282 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1283 goto out_release;
1284 }
1285
77740cb4 1286 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1287 goto out_unlock;
1288 }
1289
93190fb0
AA		 1290 mvmvif->features |= hw->netdev_features;
1291
8ca151b5
JB		 1292 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1293 if (ret)
1294 goto out_release;
1295
999609f1 1296 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1297 if (ret)
fd66fc1c 1298 goto out_remove_mac;
8ca151b5 1299
7df15b1e 1300 /* beacon filtering */
a1022927 1301 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1302 if (ret)
1303 goto out_remove_mac;
1304
7df15b1e 1305 if (!mvm->bf_allowed_vif &&
73e5f2c5 1306 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1307 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1308 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1309 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1310 }
1311
8ca151b5
JB		 1312 /*
1313 * P2P_DEVICE interface does not have a channel context assigned to it,
1314 * so a dedicated PHY context is allocated to it and the corresponding
1315 * MAC context is bound to it at this stage.
1316 */
1317 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1318
fe0f2de3
IP		 1319 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1320 if (!mvmvif->phy_ctxt) {
1321 ret = -ENOSPC;
bd3351ba 1322 goto out_free_bf;
fe0f2de3 1323 }
8ca151b5 1324
53a9d61e 1325 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1326 ret = iwl_mvm_binding_add_vif(mvm, vif);
1327 if (ret)
53a9d61e 1328 goto out_unref_phy;
8ca151b5 1329
013290aa 1330 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1331 if (ret)
1332 goto out_unbind;
1333
1334 /* Save a pointer to p2p device vif, so it can later be used to
1335 * update the p2p device MAC when a GO is started/stopped */
1336 mvm->p2p_device_vif = vif;
1337 }
1338
63494374 1339 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1340 goto out_unlock;
1341
1342 out_unbind:
1343 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1344 out_unref_phy:
fe0f2de3 1345 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1346 out_free_bf:
1347 if (mvm->bf_allowed_vif == mvmvif) {
1348 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1349 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1350 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1351 }
8ca151b5
JB		 1352 out_remove_mac:
1353 mvmvif->phy_ctxt = NULL;
1354 iwl_mvm_mac_ctxt_remove(mvm, vif);
1355 out_release:
5ee2b215
AB		 1356 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1357 mvm->vif_count--;
1c2abf72 1358
8ca151b5
JB		 1359 iwl_mvm_mac_ctxt_release(mvm, vif);
1360 out_unlock:
1361 mutex_unlock(&mvm->mutex);
1362
d40fc489
GG		 1363 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1364
8ca151b5
JB		 1365 return ret;
1366}
1367
38a12b5b
JB		 1368static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1369 struct ieee80211_vif *vif)
8ca151b5 1370{
d92b732e 1371 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1372
1373 if (tfd_msk) {
fe92e32a
EG		 1374 /*
1375 * mac80211 first removes all the stations of the vif and
1376 * then removes the vif. When it removes a station it also
1377 * flushes the AMPDU session. So by now, all the AMPDU sessions
1378 * of all the stations of this vif are closed, and the queues
1379 * of these AMPDU sessions are properly closed.
1380 * We still need to take care of the shared queues of the vif.
1381 * Flush them here.
1382 */
8ca151b5 1383 mutex_lock(&mvm->mutex);
5888a40c 1384 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1385 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1386
1387 /*
1388 * There are transports that buffer a few frames in the host.
1389 * For these, the flush above isn't enough since while we were
1390 * flushing, the transport might have sent more frames to the
1391 * device. To solve this, wait here until the transport is
1392 * empty. Technically, this could have replaced the flush
1393 * above, but flush is much faster than draining. So flush
1394 * first, and drain to make sure we have no frames in the
1395 * transport anymore.
1396 * If a station still had frames on the shared queues, it is
1397 * already marked as draining, so to complete the draining, we
1398 * just need to wait until the transport is empty.
1399 */
1400 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1401 }
1402
1403 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1404 /*
1405 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1406 * We assume here that all the packets sent to the OFFCHANNEL
1407 * queue are sent in ROC session.
1408 */
1409 flush_work(&mvm->roc_done_wk);
1410 } else {
1411 /*
1412 * By now, all the AC queues are empty. The AGG queues are
1413 * empty too. We already got all the Tx responses for all the
1414 * packets in the queues. The drain work can have been
0742a75a 1415 * triggered. Flush it.
8ca151b5
JB		 1416 */
1417 flush_work(&mvm->sta_drained_wk);
1418 }
38a12b5b
JB		 1419}
1420
1421static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1422 struct ieee80211_vif *vif)
1423{
1424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1425 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1426
1427 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1428
1429 mutex_lock(&mvm->mutex);
1430
7df15b1e
HG		 1431 if (mvm->bf_allowed_vif == mvmvif) {
1432 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1433 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1434 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1435 }
1436
63494374
JB		 1437 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1438
8ca151b5
JB		 1439 /*
1440 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1441 * interface is be handled as part of the stop_ap flow.
8ca151b5 1442 */
5023d966
JB		 1443 if (vif->type == NL80211_IFTYPE_AP ||
1444 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1445#ifdef CONFIG_NL80211_TESTMODE
1446 if (vif == mvm->noa_vif) {
1447 mvm->noa_vif = NULL;
1448 mvm->noa_duration = 0;
1449 }
1450#endif
013290aa 1451 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1452 goto out_release;
1453 }
1454
1455 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1456 mvm->p2p_device_vif = NULL;
013290aa 1457 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1458 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1459 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1460 mvmvif->phy_ctxt = NULL;
1461 }
1462
5ee2b215 1463 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1464 mvm->vif_count--;
1c2abf72 1465
999609f1 1466 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1467 iwl_mvm_mac_ctxt_remove(mvm, vif);
1468
1469out_release:
1470 iwl_mvm_mac_ctxt_release(mvm, vif);
1471 mutex_unlock(&mvm->mutex);
1472}
1473
1474static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1475{
8ca151b5
JB		 1476 return 0;
1477}
1478
e59647ea
EP		 1479struct iwl_mvm_mc_iter_data {
1480 struct iwl_mvm *mvm;
1481 int port_id;
1482};
1483
1484static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1485 struct ieee80211_vif *vif)
1486{
1487 struct iwl_mvm_mc_iter_data *data = _data;
1488 struct iwl_mvm *mvm = data->mvm;
1489 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1490 int ret, len;
1491
1492 /* if we don't have free ports, mcast frames will be dropped */
1493 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1494 return;
1495
1496 if (vif->type != NL80211_IFTYPE_STATION ||
1497 !vif->bss_conf.assoc)
1498 return;
1499
1500 cmd->port_id = data->port_id++;
1501 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1502 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1503
1c4abec0 1504 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1505 if (ret)
1506 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1507}
1508
1509static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1510{
1511 struct iwl_mvm_mc_iter_data iter_data = {
1512 .mvm = mvm,
88f2fd73
MG		 1513 };
1514
e59647ea
EP		 1515 lockdep_assert_held(&mvm->mutex);
1516
1517 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1518 return;
1519
1c4abec0 1520 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1521 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1522 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1523}
1524
e59647ea
EP		 1525static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1526 struct netdev_hw_addr_list *mc_list)
8ca151b5 1527{
e59647ea
EP		 1528 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1529 struct iwl_mcast_filter_cmd *cmd;
1530 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1531 int addr_count;
1532 bool pass_all;
e59647ea
EP		 1533 int len;
1534
f3bd58f4
MS		 1535 addr_count = netdev_hw_addr_list_count(mc_list);
1536 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1537 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1538 if (pass_all)
e59647ea 1539 addr_count = 0;
e59647ea
EP		 1540
1541 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1542 cmd = kzalloc(len, GFP_ATOMIC);
1543 if (!cmd)
1544 return 0;
1545
1546 if (pass_all) {
1547 cmd->pass_all = 1;
1548 return (u64)(unsigned long)cmd;
1549 }
1550
1551 netdev_hw_addr_list_for_each(addr, mc_list) {
1552 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1553 cmd->count, addr->addr);
1554 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1555 addr->addr, ETH_ALEN);
1556 cmd->count++;
1557 }
1558
1559 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1560}
1561
1562static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1563 unsigned int changed_flags,
1564 unsigned int *total_flags,
1565 u64 multicast)
1566{
e59647ea
EP		 1567 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1568 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1569
e59647ea 1570 mutex_lock(&mvm->mutex);
51b6b9e0 1571
e59647ea
EP		 1572 /* replace previous configuration */
1573 kfree(mvm->mcast_filter_cmd);
1574 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1575
e59647ea
EP		 1576 if (!cmd)
1577 goto out;
51b6b9e0 1578
e59647ea
EP		 1579 iwl_mvm_recalc_multicast(mvm);
1580out:
1581 mutex_unlock(&mvm->mutex);
1582 *total_flags = 0;
51b6b9e0
EG		 1583}
1584
effd1929
AO		 1585static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1586 struct ieee80211_vif *vif,
1587 unsigned int filter_flags,
1588 unsigned int changed_flags)
1589{
1590 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1591
1592 /* We support only filter for probe requests */
1593 if (!(changed_flags & FIF_PROBE_REQ))
1594 return;
1595
1596 /* Supported only for p2p client interfaces */
1597 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1598 !vif->p2p)
1599 return;
1600
1601 mutex_lock(&mvm->mutex);
1602 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1603 mutex_unlock(&mvm->mutex);
1604}
1605
c87163b9
EP		 1606#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1607struct iwl_bcast_iter_data {
1608 struct iwl_mvm *mvm;
1609 struct iwl_bcast_filter_cmd *cmd;
1610 u8 current_filter;
1611};
1612
1613static void
1614iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1615 const struct iwl_fw_bcast_filter *in_filter,
1616 struct iwl_fw_bcast_filter *out_filter)
1617{
1618 struct iwl_fw_bcast_filter_attr *attr;
1619 int i;
1620
1621 memcpy(out_filter, in_filter, sizeof(*out_filter));
1622
1623 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1624 attr = &out_filter->attrs[i];
1625
1626 if (!attr->mask)
1627 break;
1628
2ee8f021
EP		 1629 switch (attr->reserved1) {
1630 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1631 if (vif->bss_conf.arp_addr_cnt != 1) {
1632 attr->mask = 0;
1633 continue;
1634 }
1635
1636 attr->val = vif->bss_conf.arp_addr_list[0];
1637 break;
1638 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1639 attr->val = *(__be32 *)&vif->addr[2];
1640 break;
1641 default:
1642 break;
1643 }
1644 attr->reserved1 = 0;
c87163b9
EP		 1645 out_filter->num_attrs++;
1646 }
1647}
1648
1649static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1650 struct ieee80211_vif *vif)
1651{
1652 struct iwl_bcast_iter_data *data = _data;
1653 struct iwl_mvm *mvm = data->mvm;
1654 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1655 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1656 struct iwl_fw_bcast_mac *bcast_mac;
1657 int i;
1658
1659 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1660 return;
1661
1662 bcast_mac = &cmd->macs[mvmvif->id];
1663
e48393e8
IP		 1664 /*
1665 * enable filtering only for associated stations, but not for P2P
1666 * Clients
1667 */
1668 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1669 !vif->bss_conf.assoc)
c87163b9
EP		 1670 return;
1671
1672 bcast_mac->default_discard = 1;
1673
1674 /* copy all configured filters */
1675 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1676 /*
1677 * Make sure we don't exceed our filters limit.
1678 * if there is still a valid filter to be configured,
1679 * be on the safe side and just allow bcast for this mac.
1680 */
1681 if (WARN_ON_ONCE(data->current_filter >=
1682 ARRAY_SIZE(cmd->filters))) {
1683 bcast_mac->default_discard = 0;
1684 bcast_mac->attached_filters = 0;
1685 break;
1686 }
1687
1688 iwl_mvm_set_bcast_filter(vif,
1689 &mvm->bcast_filters[i],
1690 &cmd->filters[data->current_filter]);
1691
1692 /* skip current filter if it contains no attributes */
1693 if (!cmd->filters[data->current_filter].num_attrs)
1694 continue;
1695
1696 /* attach the filter to current mac */
1697 bcast_mac->attached_filters |=
1698 cpu_to_le16(BIT(data->current_filter));
1699
1700 data->current_filter++;
1701 }
1702}
1703
de06a59e
EP		 1704bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1705 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1706{
c87163b9
EP		 1707 struct iwl_bcast_iter_data iter_data = {
1708 .mvm = mvm,
de06a59e 1709 .cmd = cmd,
c87163b9
EP		 1710 };
1711
3b8983b1
MS		 1712 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1713 return false;
1714
de06a59e
EP		 1715 memset(cmd, 0, sizeof(*cmd));
1716 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1717 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1718
1719#ifdef CONFIG_IWLWIFI_DEBUGFS
1720 /* use debugfs filters/macs if override is configured */
1721 if (mvm->dbgfs_bcast_filtering.override) {
1722 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1723 sizeof(cmd->filters));
1724 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1725 sizeof(cmd->macs));
1726 return true;
1727 }
1728#endif
c87163b9
EP		 1729
1730 /* if no filters are configured, do nothing */
1731 if (!mvm->bcast_filters)
de06a59e 1732 return false;
c87163b9
EP		 1733
1734 /* configure and attach these filters for each associated sta vif */
1735 ieee80211_iterate_active_interfaces(
1736 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1737 iwl_mvm_bcast_filter_iterator, &iter_data);
1738
de06a59e
EP		 1739 return true;
1740}
34672bb3
EP		 1741
1742static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1743{
1744 struct iwl_bcast_filter_cmd cmd;
1745
1746 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1747 return 0;
1748
1749 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1750 return 0;
1751
a1022927 1752 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1753 sizeof(cmd), &cmd);
1754}
1755#else
34672bb3 1756static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1757{
1758 return 0;
1759}
1760#endif
1761
8ca151b5
JB		 1762static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1763 struct ieee80211_vif *vif,
1764 struct ieee80211_bss_conf *bss_conf,
1765 u32 changes)
1766{
1767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1768 int ret;
1769
6e97b0d2
IP		 1770 /*
1771 * Re-calculate the tsf id, as the master-slave relations depend on the
1772 * beacon interval, which was not known when the station interface was
1773 * added.
1774 */
1775 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1776 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1777
3dfd3a97
JB		 1778 /*
1779 * If we're not associated yet, take the (new) BSSID before associating
1780 * so the firmware knows. If we're already associated, then use the old
1781 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1782 * branch for disassociation below.
1783 */
1784 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1785 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1786
1787 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1788 if (ret)
1789 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1790
3dfd3a97
JB		 1791 /* after sending it once, adopt mac80211 data */
1792 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1793 mvmvif->associated = bss_conf->assoc;
1794
8ca151b5
JB		 1795 if (changes & BSS_CHANGED_ASSOC) {
1796 if (bss_conf->assoc) {
33cef925
JB		 1797 /* clear statistics to get clean beacon counter */
1798 iwl_mvm_request_statistics(mvm, true);
1799 memset(&mvmvif->beacon_stats, 0,
1800 sizeof(mvmvif->beacon_stats));
1801
8ca151b5 1802 /* add quota for this interface */
7754ae79 1803 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1804 if (ret) {
1805 IWL_ERR(mvm, "failed to update quotas\n");
1806 return;
1807 }
016d27e1
JB		 1808
1809 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1810 &mvm->status)) {
1811 /*
1812 * If we're restarting then the firmware will
1813 * obviously have lost synchronisation with
1814 * the AP. It will attempt to synchronise by
1815 * itself, but we can make it more reliable by
1816 * scheduling a session protection time event.
1817 *
1818 * The firmware needs to receive a beacon to
1819 * catch up with synchronisation, use 110% of
1820 * the beacon interval.
1821 *
1822 * Set a large maximum delay to allow for more
1823 * than a single interface.
1824 */
1825 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1826 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1827 5 * dur, false);
016d27e1 1828 }
1f3b0ff8
LE		 1829
1830 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1831 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1832 if (vif->p2p) {
29a90a49 1833 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1834 iwl_mvm_update_smps(mvm, vif,
1835 IWL_MVM_SMPS_REQ_PROT,
1836 IEEE80211_SMPS_DYNAMIC);
1837 }
8ca151b5 1838 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1839 /*
1840 * If update fails - SF might be running in associated
1841 * mode while disassociated - which is forbidden.
1842 */
1843 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1844 "Failed to update SF upon disassociation\n");
1845
8ca151b5
JB		 1846 /* remove AP station now that the MAC is unassoc */
1847 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1848 if (ret)
1849 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1850
1851 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1852 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1853 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1854 /* remove quota for this interface */
7754ae79 1855 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1856 if (ret)
1857 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1858
1859 if (vif->p2p)
1860 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1861
1862 /* this will take the cleared BSSID from bss_conf */
1863 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1864 if (ret)
1865 IWL_ERR(mvm,
1866 "failed to update MAC %pM (clear after unassoc)\n",
1867 vif->addr);
8ca151b5 1868 }
a20fd398 1869
e59647ea 1870 iwl_mvm_recalc_multicast(mvm);
34672bb3 1871 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 1872
a20fd398
AO		 1873 /* reset rssi values */
1874 mvmvif->bf_data.ave_beacon_signal = 0;
1875
8e484f0b 1876 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1877 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1878 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 1879 if (fw_has_capa(&mvm->fw->ucode_capa,
1880 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
1881 iwl_mvm_config_scan(mvm);
989c6505 1882 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1883 /*
1884 * We received a beacon _after_ association so
1885 * remove the session protection.
1886 */
1887 iwl_mvm_remove_time_event(mvm, mvmvif,
1888 &mvmvif->time_event_data);
8ca151b5 1889 }
cc87d322
EH		 1890
1891 if (changes & BSS_CHANGED_BEACON_INFO) {
1892 iwl_mvm_sf_update(mvm, vif, false);
1893 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1894 }
1895
1bc10d3b
JB		 1896 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1897 ret = iwl_mvm_power_update_mac(mvm);
1898 if (ret)
1899 IWL_ERR(mvm, "failed to update power mode\n");
1900 }
1901
88f2fd73
MG		 1902 if (changes & BSS_CHANGED_TXPOWER) {
1903 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1904 bss_conf->txpower);
1905 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1906 }
a20fd398
AO		 1907
1908 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1909 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1910 /* reset cqm events tracking */
1911 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1912 if (mvmvif->bf_data.bf_enabled) {
1913 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1914 if (ret)
1915 IWL_ERR(mvm,
1916 "failed to update CQM thresholds\n");
1917 }
a20fd398 1918 }
2ee8f021
EP		 1919
1920 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1921 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 1922 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 1923 }
8ca151b5
JB		 1924}
1925
5023d966
JB		 1926static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1927 struct ieee80211_vif *vif)
8ca151b5
JB		 1928{
1929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1930 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1931 int ret;
1932
576eeee9
EP		 1933 /*
1934 * iwl_mvm_mac_ctxt_add() might read directly from the device
1935 * (the system time), so make sure it is available.
1936 */
1937 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1938 if (ret)
1939 return ret;
1940
8ca151b5
JB		 1941 mutex_lock(&mvm->mutex);
1942
1943 /* Send the beacon template */
1944 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1945 if (ret)
1946 goto out_unlock;
1947
6e97b0d2
IP		 1948 /*
1949 * Re-calculate the tsf id, as the master-slave relations depend on the
1950 * beacon interval, which was not known when the AP interface was added.
1951 */
1952 if (vif->type == NL80211_IFTYPE_AP)
1953 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1954
94939080
GG		 1955 mvmvif->ap_assoc_sta_count = 0;
1956
8ca151b5
JB		 1957 /* Add the mac context */
1958 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1959 if (ret)
1960 goto out_unlock;
1961
1962 /* Perform the binding */
1963 ret = iwl_mvm_binding_add_vif(mvm, vif);
1964 if (ret)
1965 goto out_remove;
1966
8ca151b5
JB		 1967 /* Send the bcast station. At this stage the TBTT and DTIM time events
1968 * are added and applied to the scheduler */
013290aa 1969 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1970 if (ret)
1971 goto out_unbind;
1972
5691e218
IP		 1973 /* must be set before quota calculations */
1974 mvmvif->ap_ibss_active = true;
1975
a11e144e 1976 /* power updated needs to be done before quotas */
999609f1 1977 iwl_mvm_power_update_mac(mvm);
a11e144e 1978
7754ae79 1979 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 1980 if (ret)
a11e144e 1981 goto out_quota_failed;
8ca151b5 1982
5023d966 1983 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1984 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1985 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1986
29a90a49
EP		 1987 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1988
8e484f0b 1989 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1990
f697267f
AN		 1991 /* we don't support TDLS during DCM */
1992 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1993 iwl_mvm_teardown_tdls_peers(mvm);
1994
939e4904 1995 goto out_unlock;
8ca151b5 1996
a11e144e 1997out_quota_failed:
999609f1 1998 iwl_mvm_power_update_mac(mvm);
5691e218 1999 mvmvif->ap_ibss_active = false;
013290aa 2000 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2001out_unbind:
2002 iwl_mvm_binding_remove_vif(mvm, vif);
2003out_remove:
2004 iwl_mvm_mac_ctxt_remove(mvm, vif);
2005out_unlock:
2006 mutex_unlock(&mvm->mutex);
576eeee9 2007 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2008 return ret;
2009}
2010
5023d966
JB		 2011static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2012 struct ieee80211_vif *vif)
8ca151b5
JB		 2013{
2014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2015 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2016
38a12b5b
JB		 2017 iwl_mvm_prepare_mac_removal(mvm, vif);
2018
8ca151b5
JB		 2019 mutex_lock(&mvm->mutex);
2020
664322fa 2021 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2022 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2023 iwl_mvm_remove_time_event(mvm, mvmvif,
2024 &mvmvif->time_event_data);
664322fa 2025 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2026 mvmvif->csa_countdown = false;
7f0a7c67 2027 }
664322fa 2028
003e5236
AO		 2029 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2030 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2031 mvm->csa_tx_block_bcn_timeout = 0;
2032 }
2033
5023d966 2034 mvmvif->ap_ibss_active = false;
1c87bbad 2035 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2036
8e484f0b 2037 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2038
29a90a49
EP		 2039 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2040
5023d966 2041 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2042 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2043 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2044
7754ae79 2045 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2046 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2047 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2048
999609f1 2049 iwl_mvm_power_update_mac(mvm);
a11e144e 2050
8ca151b5
JB		 2051 iwl_mvm_mac_ctxt_remove(mvm, vif);
2052
2053 mutex_unlock(&mvm->mutex);
2054}
2055
5023d966
JB		 2056static void
2057iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2058 struct ieee80211_vif *vif,
2059 struct ieee80211_bss_conf *bss_conf,
2060 u32 changes)
8ca151b5 2061{
be2056fc 2062 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2063
be2056fc
IP		 2064 /* Changes will be applied when the AP/IBSS is started */
2065 if (!mvmvif->ap_ibss_active)
2066 return;
2067
863230da 2068 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2069 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2070 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2071 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2072
8ca151b5 2073 /* Need to send a new beacon template to the FW */
863230da
JB		 2074 if (changes & BSS_CHANGED_BEACON &&
2075 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2076 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2077
2078 if (changes & BSS_CHANGED_TXPOWER) {
2079 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2080 bss_conf->txpower);
2081 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2082 }
2083
8ca151b5
JB		 2084}
2085
2086static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2087 struct ieee80211_vif *vif,
2088 struct ieee80211_bss_conf *bss_conf,
2089 u32 changes)
2090{
2091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2092
576eeee9
EP		 2093 /*
2094 * iwl_mvm_bss_info_changed_station() might call
2095 * iwl_mvm_protect_session(), which reads directly from
2096 * the device (the system time), so make sure it is available.
2097 */
2098 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2099 return;
2100
8ca151b5
JB		 2101 mutex_lock(&mvm->mutex);
2102
723f02ed 2103 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2104 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2105
8ca151b5
JB		 2106 switch (vif->type) {
2107 case NL80211_IFTYPE_STATION:
2108 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2109 break;
2110 case NL80211_IFTYPE_AP:
5023d966
JB		 2111 case NL80211_IFTYPE_ADHOC:
2112 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2113 break;
2114 default:
2115 /* shouldn't happen */
2116 WARN_ON_ONCE(1);
2117 }
2118
2119 mutex_unlock(&mvm->mutex);
576eeee9 2120 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2121}
2122
2123static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2124 struct ieee80211_vif *vif,
c56ef672 2125 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2126{
2127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2128 int ret;
2129
6749dd80
LC		 2130 if (hw_req->req.n_channels == 0 ||
2131 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2132 return -EINVAL;
2133
2134 mutex_lock(&mvm->mutex);
6749dd80 2135 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2136 mutex_unlock(&mvm->mutex);
6749dd80 2137
8ca151b5
JB		 2138 return ret;
2139}
2140
2141static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2142 struct ieee80211_vif *vif)
2143{
2144 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2145
2146 mutex_lock(&mvm->mutex);
2147
e7d3abab
LC		 2148 /* Due to a race condition, it's possible that mac80211 asks
2149 * us to stop a hw_scan when it's already stopped. This can
2150 * happen, for instance, if we stopped the scan ourselves,
2151 * called ieee80211_scan_completed() and the userspace called
2152 * cancel scan scan before ieee80211_scan_work() could run.
2153 * To handle that, simply return if the scan is not running.
2154 */
262888fc 2155 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2156 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2157
2158 mutex_unlock(&mvm->mutex);
2159}
2160
2161static void
2162iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2163 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2164 int num_frames,
2165 enum ieee80211_frame_release_type reason,
2166 bool more_data)
2167{
2168 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2169
3e56eadf 2170 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2171
3e56eadf
JB		 2172 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2173 tids, more_data, false);
2174}
2175
2176static void
2177iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2178 struct ieee80211_sta *sta, u16 tids,
2179 int num_frames,
2180 enum ieee80211_frame_release_type reason,
2181 bool more_data)
2182{
2183 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2184
2185 /* Called when we need to transmit (a) frame(s) from agg queue */
2186
2187 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2188 tids, more_data, true);
8ca151b5
JB		 2189}
2190
2191static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2192 struct ieee80211_vif *vif,
2193 enum sta_notify_cmd cmd,
2194 struct ieee80211_sta *sta)
2195{
2196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2197 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2198 unsigned long txqs = 0, tids = 0;
3e56eadf 2199 int tid;
8ca151b5 2200
c22b0ff5
EG		 2201 spin_lock_bh(&mvmsta->lock);
2202 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2203 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2204
2205 if (tid_data->state != IWL_AGG_ON &&
2206 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2207 continue;
2208
2209 __set_bit(tid_data->txq_id, &txqs);
2210
2211 if (iwl_mvm_tid_queued(tid_data) == 0)
2212 continue;
2213
2214 __set_bit(tid, &tids);
2215 }
2216
8ca151b5
JB		 2217 switch (cmd) {
2218 case STA_NOTIFY_SLEEP:
e3d4bc8c 2219 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2220 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2221
c22b0ff5 2222 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2223 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2224
2225 if (txqs)
2226 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2227 /*
2228 * The fw updates the STA to be asleep. Tx packets on the Tx
2229 * queues to this station will not be transmitted. The fw will
2230 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2231 */
2232 break;
2233 case STA_NOTIFY_AWAKE:
881acd89 2234 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2235 break;
c22b0ff5
EG		 2236
2237 if (txqs)
2238 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2239 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2240 break;
2241 default:
2242 break;
2243 }
c22b0ff5 2244 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2245}
2246
1ddbbb0c
JB		 2247static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2248 struct ieee80211_vif *vif,
2249 struct ieee80211_sta *sta)
2250{
2251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2252 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2253
2254 /*
2255 * This is called before mac80211 does RCU synchronisation,
2256 * so here we already invalidate our internal RCU-protected
2257 * station pointer. The rest of the code will thus no longer
2258 * be able to find the station this way, and we don't rely
2259 * on further RCU synchronisation after the sta_state()
2260 * callback deleted the station.
2261 */
2262 mutex_lock(&mvm->mutex);
2263 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2264 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2265 ERR_PTR(-ENOENT));
94939080 2266
1ddbbb0c
JB		 2267 mutex_unlock(&mvm->mutex);
2268}
2269
bd1ba664
JB		 2270static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2271 const u8 *bssid)
2272{
2273 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2274 return;
2275
2276 if (iwlwifi_mod_params.uapsd_disable) {
2277 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2278 return;
2279 }
2280
2281 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2282}
2283
1e8f1329
GBA		 2284static void
2285iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2286 struct ieee80211_vif *vif, u8 *peer_addr,
2287 enum nl80211_tdls_operation action)
2288{
2289 struct iwl_fw_dbg_trigger_tlv *trig;
2290 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2291
2292 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2293 return;
2294
2295 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2296 tdls_trig = (void *)trig->data;
2297 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2298 return;
2299
2300 if (!(tdls_trig->action_bitmap & BIT(action)))
2301 return;
2302
2303 if (tdls_trig->peer_mode &&
2304 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2305 return;
2306
2307 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2308 "TDLS event occurred, peer %pM, action %d",
2309 peer_addr, action);
2310}
2311
8ca151b5
JB		 2312static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2313 struct ieee80211_vif *vif,
2314 struct ieee80211_sta *sta,
2315 enum ieee80211_sta_state old_state,
2316 enum ieee80211_sta_state new_state)
2317{
2318 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2319 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2320 int ret;
2321
2322 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2323 sta->addr, old_state, new_state);
2324
2325 /* this would be a mac80211 bug ... but don't crash */
2326 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2327 return -EINVAL;
2328
2329 /* if a STA is being removed, reuse its ID */
2330 flush_work(&mvm->sta_drained_wk);
2331
2332 mutex_lock(&mvm->mutex);
2333 if (old_state == IEEE80211_STA_NOTEXIST &&
2334 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2335 /*
2336 * Firmware bug - it'll crash if the beacon interval is less
2337 * than 16. We can't avoid connecting at all, so refuse the
2338 * station state change, this will cause mac80211 to abandon
2339 * attempts to connect to this AP, and eventually wpa_s will
2340 * blacklist the AP...
2341 */
2342 if (vif->type == NL80211_IFTYPE_STATION &&
2343 vif->bss_conf.beacon_int < 16) {
2344 IWL_ERR(mvm,
2345 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2346 sta->addr, vif->bss_conf.beacon_int);
2347 ret = -EINVAL;
2348 goto out_unlock;
2349 }
cf7b491d
AN		 2350
2351 if (sta->tdls &&
2352 (vif->p2p ||
fa3d07e4
AN		 2353 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2354 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2355 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2356 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2357 ret = -EBUSY;
2358 goto out_unlock;
2359 }
2360
8ca151b5 2361 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2362 if (sta->tdls && ret == 0) {
fa3d07e4 2363 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2364 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2365 NL80211_TDLS_SETUP);
2366 }
8ca151b5
JB		 2367 } else if (old_state == IEEE80211_STA_NONE &&
2368 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2369 /*
2370 * EBS may be disabled due to previous failures reported by FW.
2371 * Reset EBS status here assuming environment has been changed.
2372 */
2373 mvm->last_ebs_successful = true;
bd1ba664 2374 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2375 ret = 0;
2376 } else if (old_state == IEEE80211_STA_AUTH &&
2377 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2378 if (vif->type == NL80211_IFTYPE_AP) {
2379 mvmvif->ap_assoc_sta_count++;
2380 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2381 }
7a453973
JB		 2382 ret = iwl_mvm_update_sta(mvm, vif, sta);
2383 if (ret == 0)
2384 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2385 mvmvif->phy_ctxt->channel->band,
2386 true);
8ca151b5
JB		 2387 } else if (old_state == IEEE80211_STA_ASSOC &&
2388 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2389
2390 /* we don't support TDLS during DCM */
2391 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2392 iwl_mvm_teardown_tdls_peers(mvm);
2393
1e8f1329
GBA		 2394 if (sta->tdls)
2395 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2396 NL80211_TDLS_ENABLE_LINK);
2397
7df15b1e 2398 /* enable beacon filtering */
fa7b2e7f 2399 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2400 ret = 0;
2401 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2402 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2403 /* disable beacon filtering */
a1022927 2404 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2405 ret = 0;
2406 } else if (old_state == IEEE80211_STA_ASSOC &&
2407 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2408 if (vif->type == NL80211_IFTYPE_AP) {
2409 mvmvif->ap_assoc_sta_count--;
2410 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2411 }
8ca151b5
JB		 2412 ret = 0;
2413 } else if (old_state == IEEE80211_STA_AUTH &&
2414 new_state == IEEE80211_STA_NONE) {
2415 ret = 0;
2416 } else if (old_state == IEEE80211_STA_NONE &&
2417 new_state == IEEE80211_STA_NOTEXIST) {
2418 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2419 if (sta->tdls) {
fa3d07e4 2420 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2421 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2422 NL80211_TDLS_DISABLE_LINK);
2423 }
8ca151b5
JB		 2424 } else {
2425 ret = -EIO;
2426 }
48bc1307 2427 out_unlock:
8ca151b5
JB		 2428 mutex_unlock(&mvm->mutex);
2429
9c126cd6
LK		 2430 if (sta->tdls && ret == 0) {
2431 if (old_state == IEEE80211_STA_NOTEXIST &&
2432 new_state == IEEE80211_STA_NONE)
2433 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2434 else if (old_state == IEEE80211_STA_NONE &&
2435 new_state == IEEE80211_STA_NOTEXIST)
2436 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2437 }
2438
8ca151b5
JB		 2439 return ret;
2440}
2441
2442static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2443{
2444 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2445
2446 mvm->rts_threshold = value;
2447
2448 return 0;
2449}
2450
1f3b0ff8
LE		 2451static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2452 struct ieee80211_vif *vif,
2453 struct ieee80211_sta *sta, u32 changed)
2454{
2455 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2456
2457 if (vif->type == NL80211_IFTYPE_STATION &&
2458 changed & IEEE80211_RC_NSS_CHANGED)
2459 iwl_mvm_sf_update(mvm, vif, false);
2460}
2461
8ca151b5
JB		 2462static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2463 struct ieee80211_vif *vif, u16 ac,
2464 const struct ieee80211_tx_queue_params *params)
2465{
2466 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2467 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2468
2469 mvmvif->queue_params[ac] = *params;
2470
2471 /*
2472 * No need to update right away, we'll get BSS_CHANGED_QOS
2473 * The exception is P2P_DEVICE interface which needs immediate update.
2474 */
2475 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2476 int ret;
2477
2478 mutex_lock(&mvm->mutex);
3dfd3a97 2479 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2480 mutex_unlock(&mvm->mutex);
2481 return ret;
2482 }
2483 return 0;
2484}
2485
2486static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2487 struct ieee80211_vif *vif)
2488{
2489 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2490 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2491 200 + vif->bss_conf.beacon_int);
2492 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2493 100 + vif->bss_conf.beacon_int);
2494
2495 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2496 return;
2497
576eeee9
EP		 2498 /*
2499 * iwl_mvm_protect_session() reads directly from the device
2500 * (the system time), so make sure it is available.
2501 */
2502 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2503 return;
2504
8ca151b5
JB		 2505 mutex_lock(&mvm->mutex);
2506 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2507 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2508 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2509
2510 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2511}
2512
35a000b7
DS		 2513static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2514 struct ieee80211_vif *vif,
2515 struct cfg80211_sched_scan_request *req,
633e2713 2516 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2517{
2518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2519
35a000b7 2520 int ret;
4660dfbb 2521
35a000b7
DS		 2522 mutex_lock(&mvm->mutex);
2523
1f940386 2524 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2525 ret = -EBUSY;
2526 goto out;
2527 }
2528
19945dfb 2529 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2530
35a000b7
DS		 2531out:
2532 mutex_unlock(&mvm->mutex);
2533 return ret;
2534}
2535
37e3308c
JB		 2536static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2537 struct ieee80211_vif *vif)
35a000b7
DS		 2538{
2539 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2540 int ret;
35a000b7
DS		 2541
2542 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2543
2544 /* Due to a race condition, it's possible that mac80211 asks
2545 * us to stop a sched_scan when it's already stopped. This
2546 * can happen, for instance, if we stopped the scan ourselves,
2547 * called ieee80211_sched_scan_stopped() and the userspace called
2548 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2549 * could run. To handle this, simply return if the scan is
2550 * not running.
2551 */
262888fc 2552 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2553 mutex_unlock(&mvm->mutex);
2554 return 0;
2555 }
2556
c7d42480 2557 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2558 mutex_unlock(&mvm->mutex);
33ea27f6 2559 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2560
33ea27f6 2561 return ret;
35a000b7
DS		 2562}
2563
8ca151b5
JB		 2564static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2565 enum set_key_cmd cmd,
2566 struct ieee80211_vif *vif,
2567 struct ieee80211_sta *sta,
2568 struct ieee80211_key_conf *key)
2569{
2570 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2571 struct iwl_mvm_sta *mvmsta;
2572 struct iwl_mvm_key_pn *ptk_pn;
2573 int keyidx = key->keyidx;
8ca151b5 2574 int ret;
d6ee54a9 2575 u8 key_offset;
8ca151b5
JB		 2576
2577 if (iwlwifi_mod_params.sw_crypto) {
2578 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2579 return -EOPNOTSUPP;
2580 }
2581
2582 switch (key->cipher) {
2583 case WLAN_CIPHER_SUITE_TKIP:
2584 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
8ca151b5
JB		 2585 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2586 break;
ca8c0f4b
JB		 2587 case WLAN_CIPHER_SUITE_CCMP:
2588 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2589 break;
8ca151b5 2590 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2591 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2592 break;
2593 case WLAN_CIPHER_SUITE_WEP40:
2594 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2595 /* For non-client mode, only use WEP keys for TX as we probably
2596 * don't have a station yet anyway and would then have to keep
2597 * track of the keys, linking them to each of the clients/peers
2598 * as they appear. For now, don't do that, for performance WEP
2599 * offload doesn't really matter much, but we need it for some
2600 * other offload features in client mode.
8ca151b5 2601 */
ba3943b0
JB		 2602 if (vif->type != NL80211_IFTYPE_STATION)
2603 return 0;
2604 break;
8ca151b5 2605 default:
e36e5433
MS		 2606 /* currently FW supports only one optional cipher scheme */
2607 if (hw->n_cipher_schemes &&
2608 hw->cipher_schemes->cipher == key->cipher)
2609 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2610 else
2611 return -EOPNOTSUPP;
8ca151b5
JB		 2612 }
2613
2614 mutex_lock(&mvm->mutex);
2615
2616 switch (cmd) {
2617 case SET_KEY:
5023d966
JB		 2618 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2619 vif->type == NL80211_IFTYPE_AP) && !sta) {
2620 /*
2621 * GTK on AP interface is a TX-only key, return 0;
2622 * on IBSS they're per-station and because we're lazy
2623 * we don't support them for RX, so do the same.
2624 */
6caffd4f
JB		 2625 ret = 0;
2626 key->hw_key_idx = STA_KEY_IDX_INVALID;
2627 break;
2628 }
2629
b546dcd6
JB		 2630 /* During FW restart, in order to restore the state as it was,
2631 * don't try to reprogram keys we previously failed for.
2632 */
2633 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2634 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2635 IWL_DEBUG_MAC80211(mvm,
2636 "skip invalid idx key programming during restart\n");
2637 ret = 0;
2638 break;
2639 }
2640
f5e28eac
JB		 2641 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2642 sta && iwl_mvm_has_new_rx_api(mvm) &&
2643 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2644 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2645 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2646 struct ieee80211_key_seq seq;
2647 int tid, q;
2648
2649 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2650 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2651 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2652 mvm->trans->num_rx_queues *
2653 sizeof(ptk_pn->q[0]),
2654 GFP_KERNEL);
2655 if (!ptk_pn) {
2656 ret = -ENOMEM;
2657 break;
2658 }
2659
2660 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2661 ieee80211_get_key_rx_seq(key, tid, &seq);
2662 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2663 memcpy(ptk_pn->q[q].pn[tid],
2664 seq.ccmp.pn,
2665 IEEE80211_CCMP_PN_LEN);
2666 }
2667
2668 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2669 }
2670
d6ee54a9
LC		 2671 /* in HW restart reuse the index, otherwise request a new one */
2672 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2673 key_offset = key->hw_key_idx;
2674 else
2675 key_offset = STA_KEY_IDX_INVALID;
2676
8ca151b5 2677 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2678 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2679 if (ret) {
2680 IWL_WARN(mvm, "set key failed\n");
2681 /*
2682 * can't add key for RX, but we don't need it
2683 * in the device for TX so still return 0
2684 */
6caffd4f 2685 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2686 ret = 0;
2687 }
2688
2689 break;
2690 case DISABLE_KEY:
6caffd4f
JB		 2691 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2692 ret = 0;
2693 break;
2694 }
2695
f5e28eac
JB		 2696 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2697 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2698 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2699 key->cipher == WLAN_CIPHER_SUITE_GCMP)) {
2700 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2701 ptk_pn = rcu_dereference_protected(
2702 mvmsta->ptk_pn[keyidx],
2703 lockdep_is_held(&mvm->mutex));
2704 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
2705 if (ptk_pn)
2706 kfree_rcu(ptk_pn, rcu_head);
2707 }
2708
8ca151b5
JB		 2709 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2710 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2711 break;
2712 default:
2713 ret = -EINVAL;
2714 }
2715
2716 mutex_unlock(&mvm->mutex);
2717 return ret;
2718}
2719
2720static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2721 struct ieee80211_vif *vif,
2722 struct ieee80211_key_conf *keyconf,
2723 struct ieee80211_sta *sta,
2724 u32 iv32, u16 *phase1key)
2725{
2726 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2727
5023d966
JB		 2728 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2729 return;
2730
8ca151b5
JB		 2731 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2732}
2733
2734
b112889c
AM		 2735static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2736 struct iwl_rx_packet *pkt, void *data)
2737{
2738 struct iwl_mvm *mvm =
2739 container_of(notif_wait, struct iwl_mvm, notif_wait);
2740 struct iwl_hs20_roc_res *resp;
2741 int resp_len = iwl_rx_packet_payload_len(pkt);
2742 struct iwl_mvm_time_event_data *te_data = data;
2743
2744 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2745 return true;
2746
2747 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2748 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2749 return true;
2750 }
2751
2752 resp = (void *)pkt->data;
2753
2754 IWL_DEBUG_TE(mvm,
2755 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2756 resp->status, resp->event_unique_id);
2757
2758 te_data->uid = le32_to_cpu(resp->event_unique_id);
2759 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2760 te_data->uid);
2761
2762 spin_lock_bh(&mvm->time_event_lock);
2763 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2764 spin_unlock_bh(&mvm->time_event_lock);
2765
2766 return true;
2767}
2768
dc28e12f
MG		 2769#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2770#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2771#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2772#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2773#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 2774static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2775 struct ieee80211_channel *channel,
2776 struct ieee80211_vif *vif,
2777 int duration)
2778{
2779 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2780 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2781 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 2782 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 2783 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 2784 u32 dtim_interval = vif->bss_conf.dtim_period *
2785 vif->bss_conf.beacon_int;
2786 u32 req_dur, delay;
b112889c
AM		 2787 struct iwl_hs20_roc_req aux_roc_req = {
2788 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2789 .id_and_color =
2790 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2791 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2792 /* Set the channel info data */
2793 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2794 PHY_BAND_24 : PHY_BAND_5,
2795 .channel_info.channel = channel->hw_value,
2796 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2797 /* Set the time and duration */
2798 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 2799 };
2800
dc28e12f
MG		 2801 delay = AUX_ROC_MIN_DELAY;
2802 req_dur = MSEC_TO_TU(duration);
2803
2804 /*
2805 * If we are associated we want the delay time to be at least one
2806 * dtim interval so that the FW can wait until after the DTIM and
2807 * then start the time event, this will potentially allow us to
2808 * remain off-channel for the max duration.
2809 * Since we want to use almost a whole dtim interval we would also
2810 * like the delay to be for 2-3 dtim intervals, in case there are
2811 * other time events with higher priority.
2812 */
2813 if (vif->bss_conf.assoc) {
2814 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
2815 /* We cannot remain off-channel longer than the DTIM interval */
2816 if (dtim_interval <= req_dur) {
2817 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
2818 if (req_dur <= AUX_ROC_MIN_DURATION)
2819 req_dur = dtim_interval -
2820 AUX_ROC_MIN_SAFETY_BUFFER;
2821 }
2822 }
2823
2824 aux_roc_req.duration = cpu_to_le32(req_dur);
2825 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
2826
2827 IWL_DEBUG_TE(mvm,
2828 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2829 channel->hw_value, req_dur, duration, delay,
2830 dtim_interval);
b112889c
AM		 2831 /* Set the node address */
2832 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2833
a6cc5163
MG		 2834 lockdep_assert_held(&mvm->mutex);
2835
2836 spin_lock_bh(&mvm->time_event_lock);
2837
2838 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2839 spin_unlock_bh(&mvm->time_event_lock);
2840 return -EIO;
2841 }
2842
b112889c
AM		 2843 te_data->vif = vif;
2844 te_data->duration = duration;
2845 te_data->id = HOT_SPOT_CMD;
2846
b112889c
AM		 2847 spin_unlock_bh(&mvm->time_event_lock);
2848
2849 /*
2850 * Use a notification wait, which really just processes the
2851 * command response and doesn't wait for anything, in order
2852 * to be able to process the response and get the UID inside
2853 * the RX path. Using CMD_WANT_SKB doesn't work because it
2854 * stores the buffer and then wakes up this thread, by which
2855 * time another notification (that the time event started)
2856 * might already be processed unsuccessfully.
2857 */
2858 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2859 time_event_response,
2860 ARRAY_SIZE(time_event_response),
2861 iwl_mvm_rx_aux_roc, te_data);
2862
2863 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2864 &aux_roc_req);
2865
2866 if (res) {
2867 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2868 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2869 goto out_clear_te;
2870 }
2871
2872 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2873 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2874 /* should never fail */
2875 WARN_ON_ONCE(res);
2876
2877 if (res) {
2878 out_clear_te:
2879 spin_lock_bh(&mvm->time_event_lock);
2880 iwl_mvm_te_clear_data(mvm, te_data);
2881 spin_unlock_bh(&mvm->time_event_lock);
2882 }
2883
2884 return res;
2885}
2886
8ca151b5
JB		 2887static int iwl_mvm_roc(struct ieee80211_hw *hw,
2888 struct ieee80211_vif *vif,
2889 struct ieee80211_channel *channel,
d339d5ca
IP		 2890 int duration,
2891 enum ieee80211_roc_type type)
8ca151b5
JB		 2892{
2893 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2894 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2895 struct cfg80211_chan_def chandef;
31d385ae
IP		 2896 struct iwl_mvm_phy_ctxt *phy_ctxt;
2897 int ret, i;
2898
2899 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2900 duration, type);
8ca151b5 2901
6ed13164
MG		 2902 flush_work(&mvm->roc_done_wk);
2903
a6cc5163
MG		 2904 mutex_lock(&mvm->mutex);
2905
b112889c
AM		 2906 switch (vif->type) {
2907 case NL80211_IFTYPE_STATION:
859d914c
JB		 2908 if (fw_has_capa(&mvm->fw->ucode_capa,
2909 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 2910 /* Use aux roc framework (HS20) */
2911 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2912 vif, duration);
2913 goto out_unlock;
2914 }
2915 IWL_ERR(mvm, "hotspot not supported\n");
2916 ret = -EINVAL;
a6cc5163 2917 goto out_unlock;
b112889c
AM		 2918 case NL80211_IFTYPE_P2P_DEVICE:
2919 /* handle below */
2920 break;
2921 default:
2922 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2923 ret = -EINVAL;
2924 goto out_unlock;
8ca151b5
JB		 2925 }
2926
31d385ae
IP		 2927 for (i = 0; i < NUM_PHY_CTX; i++) {
2928 phy_ctxt = &mvm->phy_ctxts[i];
2929 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2930 continue;
2931
2932 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2933 /*
2934 * Unbind the P2P_DEVICE from the current PHY context,
2935 * and if the PHY context is not used remove it.
2936 */
2937 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2938 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2939 goto out_unlock;
2940
2941 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2942
2943 /* Bind the P2P_DEVICE to the current PHY Context */
2944 mvmvif->phy_ctxt = phy_ctxt;
2945
2946 ret = iwl_mvm_binding_add_vif(mvm, vif);
2947 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2948 goto out_unlock;
2949
2950 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2951 goto schedule_time_event;
2952 }
2953 }
2954
2955 /* Need to update the PHY context only if the ROC channel changed */
2956 if (channel == mvmvif->phy_ctxt->channel)
2957 goto schedule_time_event;
2958
8ca151b5 2959 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2960
31d385ae
IP		 2961 /*
2962 * Change the PHY context configuration as it is currently referenced
2963 * only by the P2P Device MAC
2964 */
2965 if (mvmvif->phy_ctxt->ref == 1) {
2966 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2967 &chandef, 1, 1);
2968 if (ret)
2969 goto out_unlock;
2970 } else {
2971 /*
2972 * The PHY context is shared with other MACs. Need to remove the
2973 * P2P Device from the binding, allocate an new PHY context and
2974 * create a new binding
2975 */
2976 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2977 if (!phy_ctxt) {
2978 ret = -ENOSPC;
2979 goto out_unlock;
2980 }
2981
2982 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2983 1, 1);
2984 if (ret) {
2985 IWL_ERR(mvm, "Failed to change PHY context\n");
2986 goto out_unlock;
2987 }
2988
2989 /* Unbind the P2P_DEVICE from the current PHY context */
2990 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2991 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2992 goto out_unlock;
2993
2994 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2995
2996 /* Bind the P2P_DEVICE to the new allocated PHY context */
2997 mvmvif->phy_ctxt = phy_ctxt;
2998
2999 ret = iwl_mvm_binding_add_vif(mvm, vif);
3000 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3001 goto out_unlock;
3002
3003 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3004 }
3005
3006schedule_time_event:
8ca151b5 3007 /* Schedule the time events */
e635c797 3008 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3009
31d385ae 3010out_unlock:
8ca151b5
JB		 3011 mutex_unlock(&mvm->mutex);
3012 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3013 return ret;
3014}
3015
3016static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3017{
3018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3019
3020 IWL_DEBUG_MAC80211(mvm, "enter\n");
3021
3022 mutex_lock(&mvm->mutex);
bf5da87f 3023 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3024 mutex_unlock(&mvm->mutex);
3025
3026 IWL_DEBUG_MAC80211(mvm, "leave\n");
3027 return 0;
3028}
3029
b08c1d97
LC		 3030static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3031 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3032{
fe0f2de3
IP		 3033 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3034 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3035 int ret;
3036
b08c1d97
LC		 3037 lockdep_assert_held(&mvm->mutex);
3038
53a9d61e 3039 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3040
fe0f2de3
IP		 3041 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3042 if (!phy_ctxt) {
3043 ret = -ENOSPC;
3044 goto out;
3045 }
8ca151b5 3046
dcbc3e1a 3047 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3048 ctx->rx_chains_static,
3049 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3050 if (ret) {
3051 IWL_ERR(mvm, "Failed to add PHY context\n");
3052 goto out;
3053 }
3054
53a9d61e 3055 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3056 *phy_ctxt_id = phy_ctxt->id;
3057out:
b08c1d97
LC		 3058 return ret;
3059}
3060
3061static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3062 struct ieee80211_chanctx_conf *ctx)
3063{
3064 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3065 int ret;
3066
3067 mutex_lock(&mvm->mutex);
3068 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3069 mutex_unlock(&mvm->mutex);
b08c1d97 3070
8ca151b5
JB		 3071 return ret;
3072}
3073
b08c1d97
LC		 3074static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3075 struct ieee80211_chanctx_conf *ctx)
3076{
3077 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3078 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3079
3080 lockdep_assert_held(&mvm->mutex);
3081
3082 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3083}
3084
8ca151b5
JB		 3085static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3086 struct ieee80211_chanctx_conf *ctx)
3087{
3088 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3089
3090 mutex_lock(&mvm->mutex);
b08c1d97 3091 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3092 mutex_unlock(&mvm->mutex);
3093}
3094
3095static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3096 struct ieee80211_chanctx_conf *ctx,
3097 u32 changed)
3098{
3099 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3100 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3101 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3102
31d385ae
IP		 3103 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3104 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3105 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3106 IEEE80211_CHANCTX_CHANGE_RADAR |
3107 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3108 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3109 phy_ctxt->ref, changed))
3110 return;
3111
8ca151b5 3112 mutex_lock(&mvm->mutex);
4d66449a 3113 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3114 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3115 ctx->rx_chains_static,
3116 ctx->rx_chains_dynamic);
3117 mutex_unlock(&mvm->mutex);
3118}
3119
b08c1d97
LC		 3120static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3121 struct ieee80211_vif *vif,
f0c97783
LC		 3122 struct ieee80211_chanctx_conf *ctx,
3123 bool switching_chanctx)
8ca151b5 3124{
fe0f2de3
IP		 3125 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3126 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3127 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3128 int ret;
3129
b08c1d97 3130 lockdep_assert_held(&mvm->mutex);
8ca151b5 3131
fe0f2de3 3132 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3133
3134 switch (vif->type) {
3135 case NL80211_IFTYPE_AP:
4741dd04
LC		 3136 /* only needed if we're switching chanctx (i.e. during CSA) */
3137 if (switching_chanctx) {
bd3398e2
AO		 3138 mvmvif->ap_ibss_active = true;
3139 break;
3140 }
5023d966 3141 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3142 /*
3143 * The AP binding flow is handled as part of the start_ap flow
5023d966 3144 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3145 */
3146 ret = 0;
b08c1d97 3147 goto out;
8ca151b5 3148 case NL80211_IFTYPE_STATION:
2533edce 3149 break;
8ca151b5 3150 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3151 /* always disable PS when a monitor interface is active */
3152 mvmvif->ps_disabled = true;
8ca151b5
JB		 3153 break;
3154 default:
3155 ret = -EINVAL;
b08c1d97 3156 goto out;
8ca151b5
JB		 3157 }
3158
3159 ret = iwl_mvm_binding_add_vif(mvm, vif);
3160 if (ret)
b08c1d97 3161 goto out;
8ca151b5
JB		 3162
3163 /*
92d85562
AB		 3164 * Power state must be updated before quotas,
3165 * otherwise fw will complain.
3166 */
999609f1 3167 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3168
3169 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3170 * interfaces. For the other types, the bss_info changed flow
3171 * will handle quota settings.
3172 */
3173 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3174 mvmvif->monitor_active = true;
7754ae79 3175 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3176 if (ret)
3177 goto out_remove_binding;
0e39eb03
CRI		 3178
3179 ret = iwl_mvm_add_snif_sta(mvm, vif);
3180 if (ret)
3181 goto out_remove_binding;
3182
8ca151b5
JB		 3183 }
3184
bd3398e2 3185 /* Handle binding during CSA */
a57c688d 3186 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3187 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3188 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3189 }
3190
4741dd04 3191 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3192 u32 duration = 2 * vif->bss_conf.beacon_int;
3193
3194 /* iwl_mvm_protect_session() reads directly from the
3195 * device (the system time), so make sure it is
3196 * available.
3197 */
3198 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3199 if (ret)
3200 goto out_remove_binding;
3201
3202 /* Protect the session to make sure we hear the first
3203 * beacon on the new channel.
3204 */
3205 iwl_mvm_protect_session(mvm, vif, duration, duration,
3206 vif->bss_conf.beacon_int / 2,
3207 true);
3208
3209 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3210
7754ae79 3211 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3212 }
3213
b08c1d97 3214 goto out;
8ca151b5 3215
b08c1d97 3216out_remove_binding:
8ca151b5 3217 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3218 iwl_mvm_power_update_mac(mvm);
b08c1d97 3219out:
8ca151b5
JB		 3220 if (ret)
3221 mvmvif->phy_ctxt = NULL;
3222 return ret;
3223}
b08c1d97
LC		 3224static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3225 struct ieee80211_vif *vif,
3226 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3227{
3228 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3229 int ret;
8ca151b5
JB		 3230
3231 mutex_lock(&mvm->mutex);
f0c97783 3232 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3233 mutex_unlock(&mvm->mutex);
3234
3235 return ret;
3236}
3237
3238static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3239 struct ieee80211_vif *vif,
f0c97783
LC		 3240 struct ieee80211_chanctx_conf *ctx,
3241 bool switching_chanctx)
b08c1d97
LC		 3242{
3243 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3244 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3245
3246 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3247
3248 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3249
8ca151b5 3250 switch (vif->type) {
5023d966 3251 case NL80211_IFTYPE_ADHOC:
b08c1d97 3252 goto out;
8ca151b5 3253 case NL80211_IFTYPE_MONITOR:
1e1391ca 3254 mvmvif->monitor_active = false;
2533edce 3255 mvmvif->ps_disabled = false;
0e39eb03 3256 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3257 break;
bd3398e2
AO		 3258 case NL80211_IFTYPE_AP:
3259 /* This part is triggered only during CSA */
4741dd04 3260 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3261 goto out;
bd3398e2 3262
7ef0aab6
AO		 3263 mvmvif->csa_countdown = false;
3264
003e5236
AO		 3265 /* Set CS bit on all the stations */
3266 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3267
3268 /* Save blocked iface, the timeout is set on the next beacon */
3269 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3270
bd3398e2 3271 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3272 break;
3273 case NL80211_IFTYPE_STATION:
3274 if (!switching_chanctx)
3275 break;
3276
3277 disabled_vif = vif;
3278
3dfd3a97 3279 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3280 break;
8ca151b5
JB		 3281 default:
3282 break;
3283 }
3284
7754ae79 3285 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3286 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3287
b08c1d97 3288out:
a11e144e 3289 mvmvif->phy_ctxt = NULL;
999609f1 3290 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3291}
3292
3293static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3294 struct ieee80211_vif *vif,
3295 struct ieee80211_chanctx_conf *ctx)
3296{
3297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3298
3299 mutex_lock(&mvm->mutex);
f0c97783 3300 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3301 mutex_unlock(&mvm->mutex);
3302}
3303
50cc9574
LC		 3304static int
3305iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3306 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3307{
b08c1d97
LC		 3308 int ret;
3309
b08c1d97 3310 mutex_lock(&mvm->mutex);
f0c97783 3311 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3312 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3313
3314 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3315 if (ret) {
3316 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3317 goto out_reassign;
3318 }
3319
f0c97783
LC		 3320 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3321 true);
b08c1d97
LC		 3322 if (ret) {
3323 IWL_ERR(mvm,
3324 "failed to assign new_ctx during channel switch\n");
3325 goto out_remove;
3326 }
3327
f697267f
AN		 3328 /* we don't support TDLS during DCM - can be caused by channel switch */
3329 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3330 iwl_mvm_teardown_tdls_peers(mvm);
3331
b08c1d97
LC		 3332 goto out;
3333
3334out_remove:
3335 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3336
3337out_reassign:
6fd1fb63 3338 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3339 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3340 goto out_restart;
3341 }
3342
6fd1fb63
LC		 3343 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3344 true)) {
b08c1d97
LC		 3345 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3346 goto out_restart;
3347 }
3348
3349 goto out;
3350
3351out_restart:
3352 /* things keep failing, better restart the hw */
3353 iwl_mvm_nic_restart(mvm, false);
3354
3355out:
3356 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3357
3358 return ret;
3359}
3360
48a256e8
LC		 3361static int
3362iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3363 struct ieee80211_vif_chanctx_switch *vifs)
3364{
3365 int ret;
3366
3367 mutex_lock(&mvm->mutex);
3368 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3369
3370 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3371 true);
3372 if (ret) {
3373 IWL_ERR(mvm,
3374 "failed to assign new_ctx during channel switch\n");
3375 goto out_reassign;
3376 }
3377
3378 goto out;
3379
3380out_reassign:
3381 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3382 true)) {
3383 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3384 goto out_restart;
3385 }
3386
3387 goto out;
3388
3389out_restart:
3390 /* things keep failing, better restart the hw */
3391 iwl_mvm_nic_restart(mvm, false);
3392
3393out:
3394 mutex_unlock(&mvm->mutex);
3395
3396 return ret;
3397}
3398
50cc9574
LC		 3399static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3400 struct ieee80211_vif_chanctx_switch *vifs,
3401 int n_vifs,
3402 enum ieee80211_chanctx_switch_mode mode)
3403{
3404 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3405 int ret;
3406
3407 /* we only support a single-vif right now */
3408 if (n_vifs > 1)
3409 return -EOPNOTSUPP;
3410
3411 switch (mode) {
3412 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3413 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3414 break;
3415 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3416 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3417 break;
3418 default:
3419 ret = -EOPNOTSUPP;
3420 break;
3421 }
3422
b08c1d97
LC		 3423 return ret;
3424}
3425
8ca151b5
JB		 3426static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3427 struct ieee80211_sta *sta,
3428 bool set)
3429{
3430 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3431 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3432
3433 if (!mvm_sta || !mvm_sta->vif) {
3434 IWL_ERR(mvm, "Station is not associated to a vif\n");
3435 return -EINVAL;
3436 }
3437
3438 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3439}
3440
507cadf2
DS		 3441#ifdef CONFIG_NL80211_TESTMODE
3442static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3443 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3444 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3445 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3446};
3447
3448static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3449 struct ieee80211_vif *vif,
3450 void *data, int len)
3451{
3452 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3453 int err;
3454 u32 noa_duration;
3455
3456 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3457 if (err)
3458 return err;
3459
3460 if (!tb[IWL_MVM_TM_ATTR_CMD])
3461 return -EINVAL;
3462
3463 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3464 case IWL_MVM_TM_CMD_SET_NOA:
3465 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3466 !vif->bss_conf.enable_beacon ||
3467 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3468 return -EINVAL;
3469
3470 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3471 if (noa_duration >= vif->bss_conf.beacon_int)
3472 return -EINVAL;
3473
3474 mvm->noa_duration = noa_duration;
3475 mvm->noa_vif = vif;
3476
7754ae79 3477 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3478 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3479 /* must be associated client vif - ignore authorized */
3480 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3481 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3482 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3483 return -EINVAL;
3484
3485 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3486 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3487 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3488 }
3489
3490 return -EOPNOTSUPP;
3491}
3492
3493static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3494 struct ieee80211_vif *vif,
3495 void *data, int len)
3496{
3497 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3498 int err;
3499
3500 mutex_lock(&mvm->mutex);
3501 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3502 mutex_unlock(&mvm->mutex);
3503
3504 return err;
3505}
3506#endif
3507
622e3f9b
LC		 3508static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3509 struct ieee80211_vif *vif,
3510 struct ieee80211_channel_switch *chsw)
3511{
3512 /* By implementing this operation, we prevent mac80211 from
3513 * starting its own channel switch timer, so that we can call
3514 * ieee80211_chswitch_done() ourselves at the right time
3515 * (which is when the absence time event starts).
3516 */
3517
3518 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3519 "dummy channel switch op\n");
3520}
3521
f028905c
LC		 3522static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3523 struct ieee80211_vif *vif,
3524 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3525{
3526 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3527 struct ieee80211_vif *csa_vif;
f6c34820 3528 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3529 u32 apply_time;
f028905c 3530 int ret;
bd3398e2
AO		 3531
3532 mutex_lock(&mvm->mutex);
664322fa 3533
81d62d5a
JB		 3534 mvmvif->csa_failed = false;
3535
6b20d774 3536 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3537 chsw->chandef.center_freq1);
6b20d774 3538
21023b1e 3539 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3540
6b20d774
LC		 3541 switch (vif->type) {
3542 case NL80211_IFTYPE_AP:
3543 csa_vif =
3544 rcu_dereference_protected(mvm->csa_vif,
3545 lockdep_is_held(&mvm->mutex));
3546 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3547 "Another CSA is already in progress")) {
3548 ret = -EBUSY;
3549 goto out_unlock;
3550 }
3551
3552 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3553
7ef0aab6
AO		 3554 if (WARN_ONCE(mvmvif->csa_countdown,
3555 "Previous CSA countdown didn't complete")) {
3556 ret = -EBUSY;
3557 goto out_unlock;
3558 }
3559
6b20d774 3560 break;
dc88b4ba 3561 case NL80211_IFTYPE_STATION:
4500e133
LC		 3562 /* Schedule the time event to a bit before beacon 1,
3563 * to make sure we're in the new channel when the
3564 * GO/AP arrives.
3565 */
3566 apply_time = chsw->device_timestamp +
3567 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3568 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3569
3570 if (chsw->block_tx)
3571 iwl_mvm_csa_client_absent(mvm, vif);
3572
4500e133 3573 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3574 apply_time);
c6e0a3e0
LC		 3575 if (mvmvif->bf_data.bf_enabled) {
3576 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3577 if (ret)
3578 goto out_unlock;
3579 }
3580
dc88b4ba 3581 break;
6b20d774
LC		 3582 default:
3583 break;
3584 }
bd3398e2 3585
f6c34820
LC		 3586 mvmvif->ps_disabled = true;
3587
3588 ret = iwl_mvm_power_update_ps(mvm);
3589 if (ret)
3590 goto out_unlock;
f028905c 3591
e198f5e7
AN		 3592 /* we won't be on this channel any longer */
3593 iwl_mvm_teardown_tdls_peers(mvm);
3594
bd3398e2
AO		 3595out_unlock:
3596 mutex_unlock(&mvm->mutex);
f028905c
LC		 3597
3598 return ret;
bd3398e2
AO		 3599}
3600
f6c34820
LC		 3601static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3602 struct ieee80211_vif *vif)
3603{
3604 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3605 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3606 int ret;
3607
3608 mutex_lock(&mvm->mutex);
3609
81d62d5a
JB		 3610 if (mvmvif->csa_failed) {
3611 mvmvif->csa_failed = false;
3612 ret = -EIO;
3613 goto out_unlock;
3614 }
3615
a57c688d
LC		 3616 if (vif->type == NL80211_IFTYPE_STATION) {
3617 struct iwl_mvm_sta *mvmsta;
3618
3619 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3620 mvmvif->ap_sta_id);
3621
3622 if (WARN_ON(!mvmsta)) {
3623 ret = -EIO;
3624 goto out_unlock;
3625 }
3626
3627 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3628
3629 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3630
3631 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3632 if (ret)
3633 goto out_unlock;
686e7fe1
LC		 3634
3635 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3636 }
3637
f6c34820
LC		 3638 mvmvif->ps_disabled = false;
3639
3640 ret = iwl_mvm_power_update_ps(mvm);
3641
a57c688d 3642out_unlock:
f6c34820
LC		 3643 mutex_unlock(&mvm->mutex);
3644
3645 return ret;
3646}
3647
c5b0e7c0
EG		 3648static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3649 struct ieee80211_vif *vif, u32 queues, bool drop)
3650{
3651 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3652 struct iwl_mvm_vif *mvmvif;
3653 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3654 struct ieee80211_sta *sta;
3655 int i;
3656 u32 msk = 0;
c5b0e7c0
EG		 3657
3658 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3659 return;
3660
3661 mutex_lock(&mvm->mutex);
3662 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3663
a0f6bf2a
AN		 3664 /* flush the AP-station and all TDLS peers */
3665 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3666 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3667 lockdep_is_held(&mvm->mutex));
3668 if (IS_ERR_OR_NULL(sta))
3669 continue;
3670
3671 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3672 if (mvmsta->vif != vif)
3673 continue;
3674
3675 /* make sure only TDLS peers or the AP are flushed */
3676 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3677
3678 msk |= mvmsta->tfd_queue_msk;
480acbce 3679 }
c5b0e7c0 3680
6d440b25 3681 if (drop) {
5888a40c 3682 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3683 IWL_ERR(mvm, "flush request fail\n");
3684 mutex_unlock(&mvm->mutex);
3685 } else {
3686 mutex_unlock(&mvm->mutex);
4e6c48e0 3687
6d440b25
EG		 3688 /* this can take a while, and we may need/want other operations
3689 * to succeed while doing this, so do it without the mutex held
3690 */
3691 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3692 }
c5b0e7c0
EG		 3693}
3694
91a8bcde
JB		 3695static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3696 struct survey_info *survey)
3697{
3698 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3699 int ret;
3700
3701 memset(survey, 0, sizeof(*survey));
3702
3703 /* only support global statistics right now */
3704 if (idx != 0)
3705 return -ENOENT;
3706
859d914c 3707 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3708 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3709 return -ENOENT;
3710
3711 mutex_lock(&mvm->mutex);
3712
3713 if (mvm->ucode_loaded) {
33cef925 3714 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3715 if (ret)
3716 goto out;
3717 }
3718
3719 survey->filled = SURVEY_INFO_TIME |
3720 SURVEY_INFO_TIME_RX |
3721 SURVEY_INFO_TIME_TX |
3722 SURVEY_INFO_TIME_SCAN;
3723 survey->time = mvm->accu_radio_stats.on_time_rf +
3724 mvm->radio_stats.on_time_rf;
3725 do_div(survey->time, USEC_PER_MSEC);
3726
3727 survey->time_rx = mvm->accu_radio_stats.rx_time +
3728 mvm->radio_stats.rx_time;
3729 do_div(survey->time_rx, USEC_PER_MSEC);
3730
3731 survey->time_tx = mvm->accu_radio_stats.tx_time +
3732 mvm->radio_stats.tx_time;
3733 do_div(survey->time_tx, USEC_PER_MSEC);
3734
3735 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3736 mvm->radio_stats.on_time_scan;
3737 do_div(survey->time_scan, USEC_PER_MSEC);
3738
10a7c028 3739 ret = 0;
91a8bcde
JB		 3740 out:
3741 mutex_unlock(&mvm->mutex);
3742 return ret;
3743}
3744
33cef925
JB		 3745static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3746 struct ieee80211_vif *vif,
3747 struct ieee80211_sta *sta,
3748 struct station_info *sinfo)
3749{
3750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3751 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3752 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3753
859d914c
JB		 3754 if (fw_has_capa(&mvm->fw->ucode_capa,
3755 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3756 return;
3757
3758 /* if beacon filtering isn't on mac80211 does it anyway */
3759 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3760 return;
3761
3762 if (!vif->bss_conf.assoc)
3763 return;
3764
3765 mutex_lock(&mvm->mutex);
3766
3767 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3768 goto unlock;
3769
3770 if (iwl_mvm_request_statistics(mvm, false))
3771 goto unlock;
3772
3773 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3774 mvmvif->beacon_stats.accu_num_beacons;
3775 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3776 if (mvmvif->beacon_stats.avg_signal) {
3777 /* firmware only reports a value after RXing a few beacons */
3778 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3779 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3780 }
3781 unlock:
3782 mutex_unlock(&mvm->mutex);
3783}
3784
4203263d
EG		 3785static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3786 struct ieee80211_vif *vif,
3787 const struct ieee80211_event *event)
d42f5350 3788{
5d4f929e 3789#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3790 do { \
3791 if ((_cnt) && --(_cnt)) \
3792 break; \
5d4f929e 3793 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3794 } while (0)
3795
d42f5350
EG		 3796 struct iwl_fw_dbg_trigger_tlv *trig;
3797 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3798
3799 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3800 return;
3801
d42f5350
EG		 3802 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3803 trig_mlme = (void *)trig->data;
3804 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3805 return;
3806
d42f5350
EG		 3807 if (event->u.mlme.data == ASSOC_EVENT) {
3808 if (event->u.mlme.status == MLME_DENIED)
3809 CHECK_MLME_TRIGGER(mvm, trig, buf,
3810 trig_mlme->stop_assoc_denied,
3811 "DENIED ASSOC: reason %d",
3812 event->u.mlme.reason);
3813 else if (event->u.mlme.status == MLME_TIMEOUT)
3814 CHECK_MLME_TRIGGER(mvm, trig, buf,
3815 trig_mlme->stop_assoc_timeout,
3816 "ASSOC TIMEOUT");
3817 } else if (event->u.mlme.data == AUTH_EVENT) {
3818 if (event->u.mlme.status == MLME_DENIED)
3819 CHECK_MLME_TRIGGER(mvm, trig, buf,
3820 trig_mlme->stop_auth_denied,
3821 "DENIED AUTH: reason %d",
3822 event->u.mlme.reason);
3823 else if (event->u.mlme.status == MLME_TIMEOUT)
3824 CHECK_MLME_TRIGGER(mvm, trig, buf,
3825 trig_mlme->stop_auth_timeout,
3826 "AUTH TIMEOUT");
3827 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3828 CHECK_MLME_TRIGGER(mvm, trig, buf,
3829 trig_mlme->stop_rx_deauth,
3830 "DEAUTH RX %d", event->u.mlme.reason);
3831 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3832 CHECK_MLME_TRIGGER(mvm, trig, buf,
3833 trig_mlme->stop_tx_deauth,
3834 "DEAUTH TX %d", event->u.mlme.reason);
3835 }
3836#undef CHECK_MLME_TRIGGER
3837}
3838
4203263d
EG		 3839static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
3840 struct ieee80211_vif *vif,
3841 const struct ieee80211_event *event)
3842{
3843 struct iwl_fw_dbg_trigger_tlv *trig;
3844 struct iwl_fw_dbg_trigger_ba *ba_trig;
3845
3846 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3847 return;
3848
3849 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3850 ba_trig = (void *)trig->data;
3851 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3852 return;
3853
3854 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
3855 return;
3856
3857 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3858 "BAR received from %pM, tid %d, ssn %d",
3859 event->u.ba.sta->addr, event->u.ba.tid,
3860 event->u.ba.ssn);
3861}
3862
3863static void
3864iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
3865 struct ieee80211_vif *vif,
3866 const struct ieee80211_event *event)
3867{
3868 struct iwl_fw_dbg_trigger_tlv *trig;
3869 struct iwl_fw_dbg_trigger_ba *ba_trig;
3870
3871 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
3872 return;
3873
3874 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
3875 ba_trig = (void *)trig->data;
3876 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3877 return;
3878
3879 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
3880 return;
3881
3882 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
3883 "Frame from %pM timed out, tid %d",
3884 event->u.ba.sta->addr, event->u.ba.tid);
3885}
3886
3887static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3888 struct ieee80211_vif *vif,
3889 const struct ieee80211_event *event)
3890{
3891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3892
3893 switch (event->type) {
3894 case MLME_EVENT:
3895 iwl_mvm_event_mlme_callback(mvm, vif, event);
3896 break;
3897 case BAR_RX_EVENT:
3898 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
3899 break;
3900 case BA_FRAME_TIMEOUT:
3901 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
3902 break;
3903 default:
3904 break;
3905 }
3906}
3907
e5209263 3908const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3909 .tx = iwl_mvm_mac_tx,
3910 .ampdu_action = iwl_mvm_mac_ampdu_action,
3911 .start = iwl_mvm_mac_start,
cf2c92d8 3912 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3913 .stop = iwl_mvm_mac_stop,
3914 .add_interface = iwl_mvm_mac_add_interface,
3915 .remove_interface = iwl_mvm_mac_remove_interface,
3916 .config = iwl_mvm_mac_config,
e59647ea 3917 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 3918 .configure_filter = iwl_mvm_configure_filter,
effd1929 3919 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 3920 .bss_info_changed = iwl_mvm_bss_info_changed,
3921 .hw_scan = iwl_mvm_mac_hw_scan,
3922 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3923 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3924 .sta_state = iwl_mvm_mac_sta_state,
3925 .sta_notify = iwl_mvm_mac_sta_notify,
3926 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3927 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3928 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3929 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3930 .conf_tx = iwl_mvm_mac_conf_tx,
3931 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3932 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3933 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3934 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3935 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3936 .set_key = iwl_mvm_mac_set_key,
3937 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3938 .remain_on_channel = iwl_mvm_roc,
3939 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3940 .add_chanctx = iwl_mvm_add_chanctx,
3941 .remove_chanctx = iwl_mvm_remove_chanctx,
3942 .change_chanctx = iwl_mvm_change_chanctx,
3943 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3944 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3945 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3946
5023d966
JB		 3947 .start_ap = iwl_mvm_start_ap_ibss,
3948 .stop_ap = iwl_mvm_stop_ap_ibss,
3949 .join_ibss = iwl_mvm_start_ap_ibss,
3950 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3951
3952 .set_tim = iwl_mvm_set_tim,
3953
622e3f9b 3954 .channel_switch = iwl_mvm_channel_switch,
f028905c 3955 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 3956 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 3957
1d3c3f63
AN		 3958 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3959 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3960 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3961
d42f5350
EG		 3962 .event_callback = iwl_mvm_mac_event_callback,
3963
507cadf2
DS		 3964 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3965
8ca151b5
JB		 3966#ifdef CONFIG_PM_SLEEP
3967 /* look at d3.c */
3968 .suspend = iwl_mvm_suspend,
3969 .resume = iwl_mvm_resume,
3970 .set_wakeup = iwl_mvm_set_wakeup,
3971 .set_rekey_data = iwl_mvm_set_rekey_data,
3972#if IS_ENABLED(CONFIG_IPV6)
3973 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3974#endif
3975 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3976#endif
91a8bcde 3977 .get_survey = iwl_mvm_mac_get_survey,
33cef925 3978 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 3979};
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