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iwlwifi: mvm: remove support for Link Quality Measurements
[thirdparty/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
410dc5aa 27 * in the file called COPYING.
8ca151b5
JB		 28 *
29 * Contact Information:
cb2f8277 30 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
51368bf7 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67#include <linux/kernel.h>
68#include <linux/slab.h>
69#include <linux/skbuff.h>
70#include <linux/netdevice.h>
71#include <linux/etherdevice.h>
f0c2646a 72#include <linux/ip.h>
2ee8f021 73#include <linux/if_arp.h>
2f89a5d7 74#include <linux/time.h>
8ca151b5 75#include <net/mac80211.h>
7b1dd048 76#include <net/ieee80211_radiotap.h>
f0c2646a 77#include <net/tcp.h>
8ca151b5
JB		 78
79#include "iwl-op-mode.h"
80#include "iwl-io.h"
81#include "mvm.h"
82#include "sta.h"
83#include "time-event.h"
84#include "iwl-eeprom-parse.h"
8ca151b5 85#include "iwl-phy-db.h"
507cadf2 86#include "testmode.h"
d962f9b1 87#include "fw/error-dump.h"
655e6d6d 88#include "iwl-prph.h"
88931cc9 89#include "iwl-nvm-parse.h"
8ca151b5
JB		 90
91static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 {
93 .max = 1,
8eb38710 94 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 95 },
3c15a0fb
JB		 96 {
97 .max = 1,
8eb38710
IP		 98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 100 BIT(NL80211_IFTYPE_P2P_GO),
101 },
102 {
103 .max = 1,
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 },
8ca151b5
JB		 106};
107
108static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 {
2624a5ca 110 .num_different_channels = 2,
8ca151b5
JB		 111 .max_interfaces = 3,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 },
115};
116
f0c2646a
JB		 117#ifdef CONFIG_PM_SLEEP
118static const struct nl80211_wowlan_tcp_data_token_feature
119iwl_mvm_wowlan_tcp_token_feature = {
120 .min_len = 0,
121 .max_len = 255,
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123};
124
125static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
136 .seq = true,
137};
138#endif
139
77736923 140#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 141/*
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
148 * be skipped.
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
151 */
152enum {
153 BC_FILTER_MAGIC_NONE = 0,
154 BC_FILTER_MAGIC_IP,
155 BC_FILTER_MAGIC_MAC,
156};
157
77736923
EP		 158static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 {
160 /* arp */
161 .discard = 0,
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 .attrs = {
164 {
165 /* frame type - arp, hw type - ethernet */
166 .offset_type =
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
171 },
2ee8f021
EP		 172 {
173 /* arp dest ip */
174 .offset_type =
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
179 ETH_ALEN,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
183 },
184 },
185 },
186 {
187 /* dhcp offer bcast */
188 .discard = 0,
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 .attrs = {
191 {
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
197 },
198 {
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .offset = 38,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 },
77736923
EP		 206 },
207 },
208 /* last filter must be empty */
209 {},
210};
211#endif
212
7498cf4c
EP		 213void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214{
7bb426ea 215 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 216 return;
217
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 222 iwl_trans_ref(mvm->trans);
223}
224
225void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226{
7bb426ea 227 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 228 return;
229
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9 231 spin_lock_bh(&mvm->refs_lock);
16c45822
SS		 232 if (WARN_ON(!mvm->refs[ref_type])) {
233 spin_unlock_bh(&mvm->refs_lock);
234 return;
235 }
236 mvm->refs[ref_type]--;
576eeee9 237 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 238 iwl_trans_unref(mvm->trans);
239}
240
576eeee9
EP		 241static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
242 enum iwl_mvm_ref_type except_ref)
7498cf4c 243{
576eeee9 244 int i, j;
7498cf4c 245
7bb426ea 246 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 247 return;
248
576eeee9
EP		 249 spin_lock_bh(&mvm->refs_lock);
250 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
251 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 252 continue;
253
576eeee9
EP		 254 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
255 i, mvm->refs[i]);
256 for (j = 0; j < mvm->refs[i]; j++)
257 iwl_trans_unref(mvm->trans);
258 mvm->refs[i] = 0;
7498cf4c 259 }
576eeee9 260 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 261}
262
f4cf8680
EP		 263bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
264{
265 int i;
266 bool taken = false;
267
268 if (!iwl_mvm_is_d0i3_supported(mvm))
269 return true;
270
271 spin_lock_bh(&mvm->refs_lock);
272 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
273 if (mvm->refs[i]) {
274 taken = true;
275 break;
276 }
277 }
278 spin_unlock_bh(&mvm->refs_lock);
279
280 return taken;
281}
282
576eeee9 283int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 284{
285 iwl_mvm_ref(mvm, ref_type);
286
287 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
288 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
289 HZ)) {
290 WARN_ON_ONCE(1);
291 iwl_mvm_unref(mvm, ref_type);
292 return -EIO;
293 }
294
295 return 0;
296}
297
fe0f2de3
IP		 298static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
299{
300 int i;
301
302 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
303 for (i = 0; i < NUM_PHY_CTX; i++) {
304 mvm->phy_ctxts[i].id = i;
305 mvm->phy_ctxts[i].ref = 0;
306 }
307}
308
88931cc9 309struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 310 const char *alpha2,
47c8b154
JD		 311 enum iwl_mcc_source src_id,
312 bool *changed)
88931cc9
AN		 313{
314 struct ieee80211_regdomain *regd = NULL;
315 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
317 struct iwl_mcc_update_resp *resp;
318
319 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
320
8ba2d7a1 321 lockdep_assert_held(&mvm->mutex);
88931cc9 322
8ba2d7a1 323 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 324 if (IS_ERR_OR_NULL(resp)) {
325 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 326 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 327 goto out;
88931cc9
AN		 328 }
329
47c8b154
JD		 330 if (changed)
331 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
332
162ee3c9 333 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 334 __le32_to_cpu(resp->n_channels),
335 resp->channels,
336 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 337 /* Store the return source id */
338 src_id = resp->source_id;
88931cc9
AN		 339 kfree(resp);
340 if (IS_ERR_OR_NULL(regd)) {
341 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 342 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 343 goto out;
88931cc9
AN		 344 }
345
8ba2d7a1
EH		 346 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
347 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 348 mvm->lar_regdom_set = true;
8ba2d7a1 349 mvm->mcc_src = src_id;
88931cc9 350
8ba2d7a1 351out:
88931cc9
AN		 352 return regd;
353}
354
47c8b154
JD		 355void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
356{
357 bool changed;
358 struct ieee80211_regdomain *regd;
359
360 if (!iwl_mvm_is_lar_supported(mvm))
361 return;
362
363 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
364 if (!IS_ERR_OR_NULL(regd)) {
365 /* only update the regulatory core if changed */
366 if (changed)
367 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
368
369 kfree(regd);
370 }
371}
372
373struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
374 bool *changed)
8ba2d7a1
EH		 375{
376 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
377 iwl_mvm_is_wifi_mcc_supported(mvm) ?
378 MCC_SOURCE_GET_CURRENT :
47c8b154 379 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 380}
381
382int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
383{
384 enum iwl_mcc_source used_src;
385 struct ieee80211_regdomain *regd;
b6e160ab
AN		 386 int ret;
387 bool changed;
8ba2d7a1
EH		 388 const struct ieee80211_regdomain *r =
389 rtnl_dereference(mvm->hw->wiphy->regd);
390
391 if (!r)
b6e160ab 392 return -ENOENT;
8ba2d7a1
EH		 393
394 /* save the last source in case we overwrite it below */
395 used_src = mvm->mcc_src;
396 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
397 /* Notify the firmware we support wifi location updates */
47c8b154 398 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 399 if (!IS_ERR_OR_NULL(regd))
400 kfree(regd);
401 }
402
403 /* Now set our last stored MCC and source */
b6e160ab
AN		 404 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
405 &changed);
8ba2d7a1
EH		 406 if (IS_ERR_OR_NULL(regd))
407 return -EIO;
408
b6e160ab
AN		 409 /* update cfg80211 if the regdomain was changed */
410 if (changed)
411 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
412 else
413 ret = 0;
8ba2d7a1 414
b6e160ab
AN		 415 kfree(regd);
416 return ret;
8ba2d7a1
EH		 417}
418
8ca151b5
JB		 419int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
420{
421 struct ieee80211_hw *hw = mvm->hw;
831e85f3 422 int num_mac, ret, i;
5f4c02e2
JB		 423 static const u32 mvm_ciphers[] = {
424 WLAN_CIPHER_SUITE_WEP40,
425 WLAN_CIPHER_SUITE_WEP104,
426 WLAN_CIPHER_SUITE_TKIP,
427 WLAN_CIPHER_SUITE_CCMP,
428 };
8ca151b5
JB		 429
430 /* Tell mac80211 our characteristics */
30686bf7
JB		 431 ieee80211_hw_set(hw, SIGNAL_DBM);
432 ieee80211_hw_set(hw, SPECTRUM_MGMT);
433 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
434 ieee80211_hw_set(hw, QUEUE_CONTROL);
435 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
436 ieee80211_hw_set(hw, SUPPORTS_PS);
437 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
438 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
439 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
440 ieee80211_hw_set(hw, CONNECTION_MONITOR);
441 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
442 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
443 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 444 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 445 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
b915c101
SS		 446 if (iwl_mvm_has_new_rx_api(mvm))
447 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
960f864b
JB		 448
449 if (fw_has_capa(&mvm->fw->ucode_capa,
450 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
65e25482 451 ieee80211_hw_set(hw, AP_LINK_PS);
960f864b
JB		 452 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
453 /*
454 * we absolutely need this for the new TX API since that comes
455 * with many more queues than the current code can deal with
456 * for station powersave
457 */
458 return -EINVAL;
459 }
8ca151b5 460
80938abc
JB		 461 if (mvm->trans->num_rx_queues > 1)
462 ieee80211_hw_set(hw, USES_RSS);
463
2d7cf549
JB		 464 if (mvm->trans->max_skb_frags)
465 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
466
c8f54701 467 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 468 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 469 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
470 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 471 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
472 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB		 473
474 hw->radiotap_timestamp.units_pos =
475 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
476 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
477 /* this is the case for CCK frames, it's better (only 8) for OFDM */
478 hw->radiotap_timestamp.accuracy = 22;
479
8ca151b5 480 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 481 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
482 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 483
8e160ab8 484 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 485 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
486 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
487 hw->wiphy->cipher_suites = mvm->ciphers;
488
2a53d166
AB		 489 if (iwl_mvm_has_new_rx_api(mvm)) {
490 mvm->ciphers[hw->wiphy->n_cipher_suites] =
491 WLAN_CIPHER_SUITE_GCMP;
492 hw->wiphy->n_cipher_suites++;
493 mvm->ciphers[hw->wiphy->n_cipher_suites] =
494 WLAN_CIPHER_SUITE_GCMP_256;
495 hw->wiphy->n_cipher_suites++;
496 }
497
4b87e5af
LC		 498 /* Enable 11w if software crypto is not enabled (as the
499 * firmware will interpret some mgmt packets, so enabling it
500 * with software crypto isn't safe).
8ca151b5 501 */
3b37f4c9 502 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 503 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 504 mvm->ciphers[hw->wiphy->n_cipher_suites] =
505 WLAN_CIPHER_SUITE_AES_CMAC;
506 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 507 if (iwl_mvm_has_new_rx_api(mvm)) {
508 mvm->ciphers[hw->wiphy->n_cipher_suites] =
509 WLAN_CIPHER_SUITE_BIP_GMAC_128;
510 hw->wiphy->n_cipher_suites++;
511 mvm->ciphers[hw->wiphy->n_cipher_suites] =
512 WLAN_CIPHER_SUITE_BIP_GMAC_256;
513 hw->wiphy->n_cipher_suites++;
514 }
5f4c02e2
JB		 515 }
516
517 /* currently FW API supports only one optional cipher scheme */
518 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 519 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
520 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
521
5f4c02e2 522 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 523
524 cs->cipher = le32_to_cpu(fwcs->cipher);
525 cs->iftype = BIT(NL80211_IFTYPE_STATION);
526 cs->hdr_len = fwcs->hdr_len;
527 cs->pn_len = fwcs->pn_len;
528 cs->pn_off = fwcs->pn_off;
529 cs->key_idx_off = fwcs->key_idx_off;
530 cs->key_idx_mask = fwcs->key_idx_mask;
531 cs->key_idx_shift = fwcs->key_idx_shift;
532 cs->mic_len = fwcs->mic_len;
533
534 mvm->hw->cipher_schemes = mvm->cs;
535 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 536 hw->wiphy->n_cipher_suites++;
537 }
8ca151b5 538
30686bf7 539 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 540 hw->wiphy->features |=
541 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 542 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
543 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 544
8ca151b5
JB		 545 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
546 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 547 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 548
549 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 550 BIT(NL80211_IFTYPE_P2P_CLIENT) |
551 BIT(NL80211_IFTYPE_AP) |
552 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 553 BIT(NL80211_IFTYPE_P2P_DEVICE) |
554 BIT(NL80211_IFTYPE_ADHOC);
5023d966 555
a2f73b6c 556 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 557 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
558 if (iwl_mvm_is_lar_supported(mvm))
559 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
560 else
561 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
562 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 563
4b87e5af 564 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 565 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 566
8ca151b5
JB		 567 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
568 hw->wiphy->n_iface_combinations =
569 ARRAY_SIZE(iwl_mvm_iface_combinations);
570
c451e6d4 571 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 572 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 573 /* we can compensate an offset of up to 3 channels = 15 MHz */
574 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 575
576 /* Extract MAC address */
577 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
578 hw->wiphy->addresses = mvm->addresses;
579 hw->wiphy->n_addresses = 1;
831e85f3
IP		 580
581 /* Extract additional MAC addresses if available */
582 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
583 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
584
585 for (i = 1; i < num_mac; i++) {
586 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 587 ETH_ALEN);
831e85f3 588 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 589 hw->wiphy->n_addresses++;
590 }
591
fe0f2de3
IP		 592 iwl_mvm_reset_phy_ctxts(mvm);
593
999d2568 594 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 595
8ca151b5
JB		 596 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
597
c7d42480 598 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 599 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
600 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
601
859d914c 602 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 603 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
604 else
605 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
606
57fbcce3
JB		 607 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
608 hw->wiphy->bands[NL80211_BAND_2GHZ] =
609 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
610 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
611 hw->wiphy->bands[NL80211_BAND_5GHZ] =
612 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 613
859d914c
JB		 614 if (fw_has_capa(&mvm->fw->ucode_capa,
615 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
616 fw_has_api(&mvm->fw->ucode_capa,
617 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 618 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 619 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
620 }
621
8ca151b5
JB		 622 hw->wiphy->hw_version = mvm->trans->hw_id;
623
ade50652 624 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 625 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
626 else
627 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
628
ca986ad9 629 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG		 630 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
631 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
632 /* we create the 802.11 header and zero length SSID IE. */
633 hw->wiphy->max_sched_scan_ie_len =
634 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 635 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
636 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
637
638 /*
639 * the firmware uses u8 for num of iterations, but 0xff is saved for
640 * infinite loop, so the maximum number of iterations is actually 254.
641 */
642 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 643
8ca151b5 644 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 645 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 646 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 647 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 648 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 649 NL80211_FEATURE_STATIC_SMPS |
650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 651
859d914c
JB		 652 if (fw_has_capa(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 654 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 655 if (fw_has_capa(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 657 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 658
859d914c
JB		 659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 661 hw->wiphy->features |=
662 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
663
859d914c
JB		 664 if (fw_has_capa(&mvm->fw->ucode_capa,
665 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 666 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
667
aacf8f18
AS		 668 if (fw_has_api(&mvm->fw->ucode_capa,
669 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
670 wiphy_ext_feature_set(hw->wiphy,
671 NL80211_EXT_FEATURE_SCAN_START_TIME);
672 wiphy_ext_feature_set(hw->wiphy,
673 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
674 wiphy_ext_feature_set(hw->wiphy,
675 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
676 }
677
8ca151b5
JB		 678 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
679
680#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 681 if (iwl_mvm_is_d0i3_supported(mvm) &&
682 device_can_wakeup(mvm->trans->dev)) {
683 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
684 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 685 }
686
eef187a7 687 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB		 688 mvm->trans->ops->d3_suspend &&
689 mvm->trans->ops->d3_resume &&
690 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 691 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
692 WIPHY_WOWLAN_DISCONNECT |
693 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
694 WIPHY_WOWLAN_RFKILL_RELEASE |
695 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 696 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB		 697 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
698 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
699 WIPHY_WOWLAN_4WAY_HANDSHAKE;
700
701 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
702 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
703 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 704 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 705 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
706 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 707 }
708#endif
709
77736923
EP		 710#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
711 /* assign default bcast filtering configuration */
712 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
713#endif
714
8ca151b5
JB		 715 ret = iwl_mvm_leds_init(mvm);
716 if (ret)
717 return ret;
718
859d914c
JB		 719 if (fw_has_capa(&mvm->fw->ucode_capa,
720 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 721 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
722 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 723 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 724 }
725
859d914c
JB		 726 if (fw_has_capa(&mvm->fw->ucode_capa,
727 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 728 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
729 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
730 }
731
93190fb0 732 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 733 if (!iwl_mvm_is_csum_supported(mvm)) {
734 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
735 NETIF_F_RXCSUM);
736 /* We may support SW TX CSUM */
737 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
738 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
739 }
41837ca9 740
b7327d89
EG		 741 ret = ieee80211_register_hw(mvm->hw);
742 if (ret)
743 iwl_mvm_leds_exit(mvm);
de8ba41b 744 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 745
91b08c2d
AE		 746 if (mvm->cfg->vht_mu_mimo_supported)
747 wiphy_ext_feature_set(hw->wiphy,
748 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
749
b7327d89 750 return ret;
8ca151b5
JB		 751}
752
b2492501
AN		 753static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
754 struct ieee80211_sta *sta,
755 struct sk_buff *skb)
756{
757 struct iwl_mvm_sta *mvmsta;
758 bool defer = false;
759
760 /*
761 * double check the IN_D0I3 flag both before and after
762 * taking the spinlock, in order to prevent taking
763 * the spinlock when not needed.
764 */
765 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
766 return false;
767
768 spin_lock(&mvm->d0i3_tx_lock);
769 /*
770 * testing the flag again ensures the skb dequeue
771 * loop (on d0i3 exit) hasn't run yet.
772 */
773 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
774 goto out;
775
776 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 777 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN		 778 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
779 goto out;
780
781 __skb_queue_tail(&mvm->d0i3_tx, skb);
782 ieee80211_stop_queues(mvm->hw);
783
784 /* trigger wakeup */
785 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
786 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
787
788 defer = true;
789out:
790 spin_unlock(&mvm->d0i3_tx_lock);
791 return defer;
792}
793
8ca151b5
JB		 794static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
795 struct ieee80211_tx_control *control,
796 struct sk_buff *skb)
797{
798 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 799 struct ieee80211_sta *sta = control->sta;
800 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
801 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 802
9ee718aa
EL		 803 if (iwl_mvm_is_radio_killed(mvm)) {
804 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 805 goto drop;
806 }
807
d20e30af 808 if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 809 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
810 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 811 goto drop;
812
eb045e6e
DS		 813 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
814 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
815 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
816 ieee80211_is_mgmt(hdr->frame_control) &&
817 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
3e56eadf
JB		 818 sta = NULL;
819
820 if (sta) {
b2492501
AN		 821 if (iwl_mvm_defer_tx(mvm, sta, skb))
822 return;
3e56eadf 823 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 824 goto drop;
825 return;
826 }
827
828 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
829 goto drop;
830 return;
831 drop:
832 ieee80211_free_txskb(hw, skb);
833}
834
205e2210
EG		 835static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
836{
837 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
838 return false;
839 return true;
840}
841
842static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
843{
844 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
845 return false;
846 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
847 return true;
848
849 /* enabled by default */
850 return true;
851}
852
7174beb6
JB		 853#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
854 do { \
855 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
856 break; \
857 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG		 858 } while (0)
859
860static void
861iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
862 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
863 enum ieee80211_ampdu_mlme_action action)
864{
865 struct iwl_fw_dbg_trigger_tlv *trig;
866 struct iwl_fw_dbg_trigger_ba *ba_trig;
867
868 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
869 return;
870
871 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
872 ba_trig = (void *)trig->data;
873
7174beb6
JB		 874 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
875 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 876 return;
877
878 switch (action) {
879 case IEEE80211_AMPDU_TX_OPERATIONAL: {
880 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
881 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
882
883 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
884 "TX AGG START: MAC %pM tid %d ssn %d\n",
885 sta->addr, tid, tid_data->ssn);
886 break;
887 }
888 case IEEE80211_AMPDU_TX_STOP_CONT:
889 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
890 "TX AGG STOP: MAC %pM tid %d\n",
891 sta->addr, tid);
892 break;
893 case IEEE80211_AMPDU_RX_START:
894 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
895 "RX AGG START: MAC %pM tid %d ssn %d\n",
896 sta->addr, tid, rx_ba_ssn);
897 break;
898 case IEEE80211_AMPDU_RX_STOP:
899 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
900 "RX AGG STOP: MAC %pM tid %d\n",
901 sta->addr, tid);
902 break;
903 default:
904 break;
905 }
906}
907
8ca151b5
JB		 908static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
909 struct ieee80211_vif *vif,
50ea05ef 910 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 911{
912 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
913 int ret;
b2492501 914 bool tx_agg_ref = false;
50ea05ef
SS		 915 struct ieee80211_sta *sta = params->sta;
916 enum ieee80211_ampdu_mlme_action action = params->action;
917 u16 tid = params->tid;
918 u16 *ssn = &params->ssn;
919 u8 buf_size = params->buf_size;
bb81bb68 920 bool amsdu = params->amsdu;
10b2b201 921 u16 timeout = params->timeout;
8ca151b5
JB		 922
923 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
924 sta->addr, tid, action);
925
926 if (!(mvm->nvm_data->sku_cap_11n_enable))
927 return -EACCES;
928
b2492501 929 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 930 switch (action) {
931 case IEEE80211_AMPDU_TX_START:
932 case IEEE80211_AMPDU_TX_STOP_CONT:
933 case IEEE80211_AMPDU_TX_STOP_FLUSH:
934 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
935 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 936 /*
9256c205
EP		 937 * for tx start, wait synchronously until D0i3 exit to
938 * get the correct sequence number for the tid.
939 * additionally, some other ampdu actions use direct
940 * target access, which is not handled automatically
941 * by the trans layer (unlike commands), so wait for
942 * d0i3 exit in these cases as well.
b2492501 943 */
d40fc489
GG		 944 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
945 if (ret)
946 return ret;
947
948 tx_agg_ref = true;
9256c205
EP		 949 break;
950 default:
951 break;
b2492501
AN		 952 }
953
8ca151b5
JB		 954 mutex_lock(&mvm->mutex);
955
956 switch (action) {
957 case IEEE80211_AMPDU_RX_START:
205e2210 958 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 959 ret = -EINVAL;
960 break;
961 }
10b2b201
SS		 962 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
963 timeout);
8ca151b5
JB		 964 break;
965 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 966 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
967 timeout);
8ca151b5
JB		 968 break;
969 case IEEE80211_AMPDU_TX_START:
205e2210 970 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 971 ret = -EINVAL;
972 break;
973 }
8ca151b5
JB		 974 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
975 break;
976 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 977 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
978 break;
8ca151b5
JB		 979 case IEEE80211_AMPDU_TX_STOP_FLUSH:
980 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 981 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 982 break;
983 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 984 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
985 buf_size, amsdu);
8ca151b5
JB		 986 break;
987 default:
988 WARN_ON_ONCE(1);
989 ret = -EINVAL;
990 break;
991 }
4203263d
EG		 992
993 if (!ret) {
994 u16 rx_ba_ssn = 0;
995
996 if (action == IEEE80211_AMPDU_RX_START)
997 rx_ba_ssn = *ssn;
998
999 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1000 rx_ba_ssn, action);
1001 }
8ca151b5
JB		 1002 mutex_unlock(&mvm->mutex);
1003
b2492501
AN		 1004 /*
1005 * If the tid is marked as started, we won't use it for offloaded
1006 * traffic on the next D0i3 entry. It's safe to unref.
1007 */
1008 if (tx_agg_ref)
1009 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1010
8ca151b5
JB		 1011 return ret;
1012}
1013
1014static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1015 struct ieee80211_vif *vif)
1016{
1017 struct iwl_mvm *mvm = data;
1018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1019
1020 mvmvif->uploaded = false;
0ae98812 1021 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1022
8ca151b5
JB		 1023 spin_lock_bh(&mvm->time_event_lock);
1024 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1025 spin_unlock_bh(&mvm->time_event_lock);
1026
fe0f2de3 1027 mvmvif->phy_ctxt = NULL;
8a275bad 1028 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1029}
1030
1031static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1032{
58629d9d
JB		 1033 /* clear the D3 reconfig, we only need it to avoid dumping a
1034 * firmware coredump on reconfiguration, we shouldn't do that
1035 * on D3->D0 transition
1036 */
b6eaa45a 1037 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB		 1038 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1039 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1040 }
1bd3cbc1 1041
744cb695
EP		 1042 /* cleanup all stale references (scan, roc), but keep the
1043 * ucode_down ref until reconfig is complete
1044 */
1045 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1046
fcb6b92a 1047 iwl_mvm_stop_device(mvm);
8ca151b5 1048
9af91f46 1049 mvm->scan_status = 0;
b1873300 1050 mvm->ps_disabled = false;
31b8b343 1051 mvm->calibrating = false;
8ca151b5
JB		 1052
1053 /* just in case one was running */
305d236e 1054 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1055 ieee80211_remain_on_channel_expired(mvm->hw);
1056
737719fe
AN		 1057 /*
1058 * cleanup all interfaces, even inactive ones, as some might have
1059 * gone down during the HW restart
1060 */
1061 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1062
fe0f2de3 1063 mvm->p2p_device_vif = NULL;
0ae98812 1064 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP		 1065
1066 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1067 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
24afba76 1068 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
8a275bad 1069 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1070 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1071
1072 ieee80211_wake_queues(mvm->hw);
1073
228670b2
EP		 1074 /* clear any stale d0i3 state */
1075 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1076
8ca151b5 1077 mvm->vif_count = 0;
113a0447 1078 mvm->rx_ba_sessions = 0;
7174beb6 1079 mvm->fwrt.dump.conf = FW_DBG_INVALID;
91a8bcde
JB		 1080
1081 /* keep statistics ticking */
1082 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1083}
1084
a0a09243 1085int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1086{
8ca151b5
JB		 1087 int ret;
1088
a0a09243 1089 lockdep_assert_held(&mvm->mutex);
8ca151b5 1090
bf8b286f
JB		 1091 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1092 /*
1093 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1094 * so later code will - from now on - see that we're doing it.
1095 */
1096 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1097 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
a42b2af3 1098 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1099 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1100 } else {
1101 /* Hold the reference to prevent runtime suspend while
1102 * the start procedure runs. It's a bit confusing
1103 * that the UCODE_DOWN reference is taken, but it just
1104 * means "UCODE is not UP yet". ( TODO: rename this
1105 * reference).
1106 */
1107 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1108 }
8ca151b5 1109 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1110
1111 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1112 /* Something went wrong - we need to finish some cleanup
1113 * that normally iwl_mvm_mac_restart_complete() below
1114 * would do.
1115 */
1116 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1117 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1118 }
1119
a0a09243
LC		 1120 return ret;
1121}
1122
1123static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1124{
1125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1126 int ret;
1127
37948fcf
EP		 1128 /* Some hw restart cleanups must not hold the mutex */
1129 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1130 /*
1131 * Make sure we are out of d0i3. This is needed
1132 * to make sure the reference accounting is correct
1133 * (and there is no stale d0i3_exit_work).
1134 */
1135 wait_event_timeout(mvm->d0i3_exit_waitq,
1136 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1137 &mvm->status),
1138 HZ);
1139 }
1140
a0a09243
LC		 1141 mutex_lock(&mvm->mutex);
1142 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1143 mutex_unlock(&mvm->mutex);
1144
1145 return ret;
1146}
1147
cf2c92d8 1148static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1149{
8ca151b5
JB		 1150 int ret;
1151
1152 mutex_lock(&mvm->mutex);
1153
1154 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1155 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1156 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1157 if (ret)
1158 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1159 ret);
1160
7498cf4c
EP		 1161 /* allow transport/FW low power modes */
1162 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1163
cbd2ae2d
AN		 1164 /*
1165 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1166 * of packets the FW sent out, so we must reconnect.
1167 */
1168 iwl_mvm_teardown_tdls_peers(mvm);
1169
8ca151b5
JB		 1170 mutex_unlock(&mvm->mutex);
1171}
1172
088070a2
EP		 1173static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1174{
b7282643
LC		 1175 if (iwl_mvm_is_d0i3_supported(mvm) &&
1176 iwl_mvm_enter_d0i3_on_suspend(mvm))
1177 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1178 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1179 &mvm->status),
1180 HZ),
1181 "D0i3 exit on resume timed out\n");
088070a2
EP		 1182}
1183
cf2c92d8
EP		 1184static void
1185iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1186 enum ieee80211_reconfig_type reconfig_type)
1187{
1188 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1189
1190 switch (reconfig_type) {
1191 case IEEE80211_RECONFIG_TYPE_RESTART:
1192 iwl_mvm_restart_complete(mvm);
1193 break;
1194 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1195 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1196 break;
1197 }
1198}
1199
a0a09243 1200void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1201{
a0a09243 1202 lockdep_assert_held(&mvm->mutex);
7498cf4c 1203
91a8bcde
JB		 1204 /* firmware counters are obviously reset now, but we shouldn't
1205 * partially track so also clear the fw_reset_accu counters.
1206 */
1207 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1208
8ca151b5
JB		 1209 /* async_handlers_wk is now blocked */
1210
1211 /*
1212 * The work item could be running or queued if the
1213 * ROC time event stops just as we get here.
1214 */
c779273b 1215 flush_work(&mvm->roc_done_wk);
8ca151b5 1216
fcb6b92a 1217 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1218
1219 iwl_mvm_async_handlers_purge(mvm);
1220 /* async_handlers_list is empty and will stay empty: HW is stopped */
1221
1222 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1223 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1224
0a79a0c0
EP		 1225 /*
1226 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1227 * won't be called in this case).
8b2b9fbf
AN		 1228 * But make sure to cleanup interfaces that have gone down before/during
1229 * HW restart was requested.
0a79a0c0 1230 */
8b2b9fbf
AN		 1231 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1232 ieee80211_iterate_interfaces(mvm->hw, 0,
1233 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1234
963221be
AB		 1235 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1236 * make sure there's nothing left there and warn if any is found.
1237 */
859d914c 1238 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1239 int i;
1240
507e4cda 1241 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1242 if (WARN_ONCE(mvm->scan_uid_status[i],
1243 "UMAC scan UID %d status was not cleaned\n",
1244 i))
1245 mvm->scan_uid_status[i] = 0;
963221be
AB		 1246 }
1247 }
a0a09243 1248}
bc44886d 1249
a0a09243
LC		 1250static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1251{
1252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1253
1254 flush_work(&mvm->d0i3_exit_work);
1255 flush_work(&mvm->async_handlers_wk);
24afba76 1256 flush_work(&mvm->add_stream_wk);
771147b0
JB		 1257
1258 /*
1259 * Lock and clear the firmware running bit here already, so that
1260 * new commands coming in elsewhere, e.g. from debugfs, will not
1261 * be able to proceed. This is important here because one of those
7174beb6 1262 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB		 1263 * don't stop debugfs accesses before canceling that it could be
1264 * retriggered after we flush it but before we've cleared the bit.
1265 */
1266 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1267
7174beb6 1268 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1269 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1270 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1271 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC		 1272
1273 mutex_lock(&mvm->mutex);
1274 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1275 mutex_unlock(&mvm->mutex);
1276
1277 /*
1278 * The worker might have been waiting for the mutex, let it run and
1279 * discover that its list is now empty.
1280 */
1281 cancel_work_sync(&mvm->async_handlers_wk);
1282}
1283
fe0f2de3
IP		 1284static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1285{
1286 u16 i;
1287
1288 lockdep_assert_held(&mvm->mutex);
1289
1290 for (i = 0; i < NUM_PHY_CTX; i++)
1291 if (!mvm->phy_ctxts[i].ref)
1292 return &mvm->phy_ctxts[i];
1293
1294 IWL_ERR(mvm, "No available PHY context\n");
1295 return NULL;
1296}
1297
d44c3fe6
AA		 1298static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1299 s16 tx_power)
1300{
1301 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1302 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1303 .v3.mac_context_id =
d44c3fe6 1304 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1305 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1306 };
da03f029 1307 int len = sizeof(cmd);
d44c3fe6 1308
d44c3fe6 1309 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1310 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1311
55bfa4b9
LC		 1312 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1313 len = sizeof(cmd.v3);
da03f029
JB		 1314
1315 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1316}
1317
8ca151b5
JB		 1318static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1319 struct ieee80211_vif *vif)
1320{
1321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1323 int ret;
1324
aa5e1832
EG		 1325 mvmvif->mvm = mvm;
1326
d40fc489
GG		 1327 /*
1328 * make sure D0i3 exit is completed, otherwise a target access
1329 * during tx queue configuration could be done when still in
1330 * D0i3 state.
1331 */
1332 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1333 if (ret)
1334 return ret;
1335
8ca151b5
JB		 1336 /*
1337 * Not much to do here. The stack will not allow interface
1338 * types or combinations that we didn't advertise, so we
1339 * don't really have to check the types.
1340 */
1341
1342 mutex_lock(&mvm->mutex);
1343
33cef925
JB		 1344 /* make sure that beacon statistics don't go backwards with FW reset */
1345 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1346 mvmvif->beacon_stats.accu_num_beacons +=
1347 mvmvif->beacon_stats.num_beacons;
1348
e89044d7 1349 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1350 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1351 if (ret)
1352 goto out_unlock;
1353
1c2abf72 1354 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1355 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1356 mvm->vif_count++;
ea183d02 1357
8ca151b5
JB		 1358 /*
1359 * The AP binding flow can be done only after the beacon
1360 * template is configured (which happens only in the mac80211
1361 * start_ap() flow), and adding the broadcast station can happen
1362 * only after the binding.
1363 * In addition, since modifying the MAC before adding a bcast
1364 * station is not allowed by the FW, delay the adding of MAC context to
1365 * the point where we can also add the bcast station.
1366 * In short: there's not much we can do at this point, other than
1367 * allocating resources :)
1368 */
5023d966
JB		 1369 if (vif->type == NL80211_IFTYPE_AP ||
1370 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1371 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1372 if (ret) {
1373 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1374 goto out_release;
1375 }
1376
c8f54701
JB		 1377 /*
1378 * Only queue for this station is the mcast queue,
1379 * which shouldn't be in TFD mask anyway
1380 */
1381 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1382 0, vif->type,
1383 IWL_STA_MULTICAST);
1384 if (ret)
1385 goto out_release;
26d6c16b 1386
77740cb4 1387 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1388 goto out_unlock;
1389 }
1390
93190fb0
AA		 1391 mvmvif->features |= hw->netdev_features;
1392
8ca151b5
JB		 1393 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1394 if (ret)
1395 goto out_release;
1396
999609f1 1397 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1398 if (ret)
fd66fc1c 1399 goto out_remove_mac;
8ca151b5 1400
7df15b1e 1401 /* beacon filtering */
a1022927 1402 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1403 if (ret)
1404 goto out_remove_mac;
1405
7df15b1e 1406 if (!mvm->bf_allowed_vif &&
73e5f2c5 1407 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1408 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1409 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1410 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1411 }
1412
8ca151b5
JB		 1413 /*
1414 * P2P_DEVICE interface does not have a channel context assigned to it,
1415 * so a dedicated PHY context is allocated to it and the corresponding
1416 * MAC context is bound to it at this stage.
1417 */
1418 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1419
fe0f2de3
IP		 1420 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1421 if (!mvmvif->phy_ctxt) {
1422 ret = -ENOSPC;
bd3351ba 1423 goto out_free_bf;
fe0f2de3 1424 }
8ca151b5 1425
53a9d61e 1426 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1427 ret = iwl_mvm_binding_add_vif(mvm, vif);
1428 if (ret)
53a9d61e 1429 goto out_unref_phy;
8ca151b5 1430
d197358b 1431 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
8ca151b5
JB		 1432 if (ret)
1433 goto out_unbind;
1434
1435 /* Save a pointer to p2p device vif, so it can later be used to
1436 * update the p2p device MAC when a GO is started/stopped */
1437 mvm->p2p_device_vif = vif;
1438 }
1439
63494374 1440 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1441 goto out_unlock;
1442
1443 out_unbind:
1444 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1445 out_unref_phy:
fe0f2de3 1446 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1447 out_free_bf:
1448 if (mvm->bf_allowed_vif == mvmvif) {
1449 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1450 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1451 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1452 }
8ca151b5
JB		 1453 out_remove_mac:
1454 mvmvif->phy_ctxt = NULL;
1455 iwl_mvm_mac_ctxt_remove(mvm, vif);
1456 out_release:
5ee2b215
AB		 1457 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1458 mvm->vif_count--;
8ca151b5
JB		 1459 out_unlock:
1460 mutex_unlock(&mvm->mutex);
1461
d40fc489
GG		 1462 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1463
8ca151b5
JB		 1464 return ret;
1465}
1466
38a12b5b
JB		 1467static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1468 struct ieee80211_vif *vif)
8ca151b5 1469{
8ca151b5
JB		 1470 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1471 /*
1472 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1473 * We assume here that all the packets sent to the OFFCHANNEL
1474 * queue are sent in ROC session.
1475 */
1476 flush_work(&mvm->roc_done_wk);
8ca151b5 1477 }
38a12b5b
JB		 1478}
1479
1480static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1481 struct ieee80211_vif *vif)
1482{
1483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1485
1486 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1487
1488 mutex_lock(&mvm->mutex);
1489
7df15b1e
HG		 1490 if (mvm->bf_allowed_vif == mvmvif) {
1491 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1492 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1493 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1494 }
1495
63494374
JB		 1496 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1497
8ca151b5
JB		 1498 /*
1499 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1500 * interface is be handled as part of the stop_ap flow.
8ca151b5 1501 */
5023d966
JB		 1502 if (vif->type == NL80211_IFTYPE_AP ||
1503 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 if (vif == mvm->noa_vif) {
1506 mvm->noa_vif = NULL;
1507 mvm->noa_duration = 0;
1508 }
1509#endif
26d6c16b 1510 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1511 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1512 goto out_release;
1513 }
1514
1515 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1516 mvm->p2p_device_vif = NULL;
d197358b 1517 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
8ca151b5 1518 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1519 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1520 mvmvif->phy_ctxt = NULL;
1521 }
1522
5ee2b215 1523 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1524 mvm->vif_count--;
1c2abf72 1525
999609f1 1526 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1527 iwl_mvm_mac_ctxt_remove(mvm, vif);
1528
1529out_release:
8ca151b5
JB		 1530 mutex_unlock(&mvm->mutex);
1531}
1532
1533static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1534{
8ca151b5
JB		 1535 return 0;
1536}
1537
e59647ea
EP		 1538struct iwl_mvm_mc_iter_data {
1539 struct iwl_mvm *mvm;
1540 int port_id;
1541};
1542
1543static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1544 struct ieee80211_vif *vif)
1545{
1546 struct iwl_mvm_mc_iter_data *data = _data;
1547 struct iwl_mvm *mvm = data->mvm;
1548 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1549 int ret, len;
1550
1551 /* if we don't have free ports, mcast frames will be dropped */
1552 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1553 return;
1554
1555 if (vif->type != NL80211_IFTYPE_STATION ||
1556 !vif->bss_conf.assoc)
1557 return;
1558
1559 cmd->port_id = data->port_id++;
1560 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1561 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1562
1c4abec0 1563 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1564 if (ret)
1565 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1566}
1567
1568static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1569{
1570 struct iwl_mvm_mc_iter_data iter_data = {
1571 .mvm = mvm,
88f2fd73
MG		 1572 };
1573
e59647ea
EP		 1574 lockdep_assert_held(&mvm->mutex);
1575
1576 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1577 return;
1578
1c4abec0 1579 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1580 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1581 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1582}
1583
e59647ea
EP		 1584static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1585 struct netdev_hw_addr_list *mc_list)
8ca151b5 1586{
e59647ea
EP		 1587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1588 struct iwl_mcast_filter_cmd *cmd;
1589 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1590 int addr_count;
1591 bool pass_all;
e59647ea
EP		 1592 int len;
1593
f3bd58f4
MS		 1594 addr_count = netdev_hw_addr_list_count(mc_list);
1595 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1596 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1597 if (pass_all)
e59647ea 1598 addr_count = 0;
e59647ea
EP		 1599
1600 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1601 cmd = kzalloc(len, GFP_ATOMIC);
1602 if (!cmd)
1603 return 0;
1604
1605 if (pass_all) {
1606 cmd->pass_all = 1;
1607 return (u64)(unsigned long)cmd;
1608 }
1609
1610 netdev_hw_addr_list_for_each(addr, mc_list) {
1611 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1612 cmd->count, addr->addr);
1613 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1614 addr->addr, ETH_ALEN);
1615 cmd->count++;
1616 }
1617
1618 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1619}
1620
1621static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1622 unsigned int changed_flags,
1623 unsigned int *total_flags,
1624 u64 multicast)
1625{
e59647ea
EP		 1626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1627 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1628
e59647ea 1629 mutex_lock(&mvm->mutex);
51b6b9e0 1630
e59647ea
EP		 1631 /* replace previous configuration */
1632 kfree(mvm->mcast_filter_cmd);
1633 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1634
e59647ea
EP		 1635 if (!cmd)
1636 goto out;
51b6b9e0 1637
e59647ea
EP		 1638 iwl_mvm_recalc_multicast(mvm);
1639out:
1640 mutex_unlock(&mvm->mutex);
1641 *total_flags = 0;
51b6b9e0
EG		 1642}
1643
effd1929
AO		 1644static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1645 struct ieee80211_vif *vif,
1646 unsigned int filter_flags,
1647 unsigned int changed_flags)
1648{
1649 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1650
1651 /* We support only filter for probe requests */
1652 if (!(changed_flags & FIF_PROBE_REQ))
1653 return;
1654
1655 /* Supported only for p2p client interfaces */
1656 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1657 !vif->p2p)
1658 return;
1659
1660 mutex_lock(&mvm->mutex);
1661 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1662 mutex_unlock(&mvm->mutex);
1663}
1664
c87163b9
EP		 1665#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1666struct iwl_bcast_iter_data {
1667 struct iwl_mvm *mvm;
1668 struct iwl_bcast_filter_cmd *cmd;
1669 u8 current_filter;
1670};
1671
1672static void
1673iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1674 const struct iwl_fw_bcast_filter *in_filter,
1675 struct iwl_fw_bcast_filter *out_filter)
1676{
1677 struct iwl_fw_bcast_filter_attr *attr;
1678 int i;
1679
1680 memcpy(out_filter, in_filter, sizeof(*out_filter));
1681
1682 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1683 attr = &out_filter->attrs[i];
1684
1685 if (!attr->mask)
1686 break;
1687
2ee8f021
EP		 1688 switch (attr->reserved1) {
1689 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1690 if (vif->bss_conf.arp_addr_cnt != 1) {
1691 attr->mask = 0;
1692 continue;
1693 }
1694
1695 attr->val = vif->bss_conf.arp_addr_list[0];
1696 break;
1697 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1698 attr->val = *(__be32 *)&vif->addr[2];
1699 break;
1700 default:
1701 break;
1702 }
1703 attr->reserved1 = 0;
c87163b9
EP		 1704 out_filter->num_attrs++;
1705 }
1706}
1707
1708static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1709 struct ieee80211_vif *vif)
1710{
1711 struct iwl_bcast_iter_data *data = _data;
1712 struct iwl_mvm *mvm = data->mvm;
1713 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1714 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1715 struct iwl_fw_bcast_mac *bcast_mac;
1716 int i;
1717
1718 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1719 return;
1720
1721 bcast_mac = &cmd->macs[mvmvif->id];
1722
e48393e8
IP		 1723 /*
1724 * enable filtering only for associated stations, but not for P2P
1725 * Clients
1726 */
1727 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1728 !vif->bss_conf.assoc)
c87163b9
EP		 1729 return;
1730
1731 bcast_mac->default_discard = 1;
1732
1733 /* copy all configured filters */
1734 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1735 /*
1736 * Make sure we don't exceed our filters limit.
1737 * if there is still a valid filter to be configured,
1738 * be on the safe side and just allow bcast for this mac.
1739 */
1740 if (WARN_ON_ONCE(data->current_filter >=
1741 ARRAY_SIZE(cmd->filters))) {
1742 bcast_mac->default_discard = 0;
1743 bcast_mac->attached_filters = 0;
1744 break;
1745 }
1746
1747 iwl_mvm_set_bcast_filter(vif,
1748 &mvm->bcast_filters[i],
1749 &cmd->filters[data->current_filter]);
1750
1751 /* skip current filter if it contains no attributes */
1752 if (!cmd->filters[data->current_filter].num_attrs)
1753 continue;
1754
1755 /* attach the filter to current mac */
1756 bcast_mac->attached_filters |=
1757 cpu_to_le16(BIT(data->current_filter));
1758
1759 data->current_filter++;
1760 }
1761}
1762
de06a59e
EP		 1763bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1764 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1765{
c87163b9
EP		 1766 struct iwl_bcast_iter_data iter_data = {
1767 .mvm = mvm,
de06a59e 1768 .cmd = cmd,
c87163b9
EP		 1769 };
1770
3b8983b1
MS		 1771 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1772 return false;
1773
de06a59e
EP		 1774 memset(cmd, 0, sizeof(*cmd));
1775 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1776 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1777
1778#ifdef CONFIG_IWLWIFI_DEBUGFS
1779 /* use debugfs filters/macs if override is configured */
1780 if (mvm->dbgfs_bcast_filtering.override) {
1781 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1782 sizeof(cmd->filters));
1783 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1784 sizeof(cmd->macs));
1785 return true;
1786 }
1787#endif
c87163b9
EP		 1788
1789 /* if no filters are configured, do nothing */
1790 if (!mvm->bcast_filters)
de06a59e 1791 return false;
c87163b9
EP		 1792
1793 /* configure and attach these filters for each associated sta vif */
1794 ieee80211_iterate_active_interfaces(
1795 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1796 iwl_mvm_bcast_filter_iterator, &iter_data);
1797
de06a59e
EP		 1798 return true;
1799}
34672bb3
EP		 1800
1801static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1802{
1803 struct iwl_bcast_filter_cmd cmd;
1804
1805 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1806 return 0;
1807
1808 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1809 return 0;
1810
a1022927 1811 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1812 sizeof(cmd), &cmd);
1813}
1814#else
34672bb3 1815static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1816{
1817 return 0;
1818}
1819#endif
1820
a07a8f37
SS		 1821static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1822 struct ieee80211_vif *vif)
1823{
1824 struct iwl_mu_group_mgmt_cmd cmd = {};
1825
1826 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1827 WLAN_MEMBERSHIP_LEN);
1828 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1829 WLAN_USER_POSITION_LEN);
1830
1831 return iwl_mvm_send_cmd_pdu(mvm,
1832 WIDE_ID(DATA_PATH_GROUP,
1833 UPDATE_MU_GROUPS_CMD),
1834 0, sizeof(cmd), &cmd);
1835}
1836
f92659a1
SS		 1837static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1838 struct ieee80211_vif *vif)
1839{
1840 if (vif->mu_mimo_owner) {
1841 struct iwl_mu_group_mgmt_notif *notif = _data;
1842
1843 /*
1844 * MU-MIMO Group Id action frame is little endian. We treat
1845 * the data received from firmware as if it came from the
1846 * action frame, so no conversion is needed.
1847 */
1848 ieee80211_update_mu_groups(vif,
1849 (u8 *)&notif->membership_status,
1850 (u8 *)&notif->user_position);
1851 }
1852}
1853
1854void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1855 struct iwl_rx_cmd_buffer *rxb)
1856{
1857 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1858 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1859
1860 ieee80211_iterate_active_interfaces_atomic(
1861 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1862 iwl_mvm_mu_mimo_iface_iterator, notif);
1863}
1864
8ca151b5
JB		 1865static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1866 struct ieee80211_vif *vif,
1867 struct ieee80211_bss_conf *bss_conf,
1868 u32 changes)
1869{
1870 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1871 int ret;
1872
6e97b0d2
IP		 1873 /*
1874 * Re-calculate the tsf id, as the master-slave relations depend on the
1875 * beacon interval, which was not known when the station interface was
1876 * added.
1877 */
1878 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1879 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1880
3dfd3a97
JB		 1881 /*
1882 * If we're not associated yet, take the (new) BSSID before associating
1883 * so the firmware knows. If we're already associated, then use the old
1884 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1885 * branch for disassociation below.
1886 */
1887 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1888 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1889
1890 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1891 if (ret)
1892 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1893
3dfd3a97
JB		 1894 /* after sending it once, adopt mac80211 data */
1895 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1896 mvmvif->associated = bss_conf->assoc;
1897
8ca151b5
JB		 1898 if (changes & BSS_CHANGED_ASSOC) {
1899 if (bss_conf->assoc) {
33cef925
JB		 1900 /* clear statistics to get clean beacon counter */
1901 iwl_mvm_request_statistics(mvm, true);
1902 memset(&mvmvif->beacon_stats, 0,
1903 sizeof(mvmvif->beacon_stats));
1904
8ca151b5 1905 /* add quota for this interface */
7754ae79 1906 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1907 if (ret) {
1908 IWL_ERR(mvm, "failed to update quotas\n");
1909 return;
1910 }
016d27e1
JB		 1911
1912 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1913 &mvm->status)) {
1914 /*
1915 * If we're restarting then the firmware will
1916 * obviously have lost synchronisation with
1917 * the AP. It will attempt to synchronise by
1918 * itself, but we can make it more reliable by
1919 * scheduling a session protection time event.
1920 *
1921 * The firmware needs to receive a beacon to
1922 * catch up with synchronisation, use 110% of
1923 * the beacon interval.
1924 *
1925 * Set a large maximum delay to allow for more
1926 * than a single interface.
1927 */
1928 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1929 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1930 5 * dur, false);
016d27e1 1931 }
1f3b0ff8
LE		 1932
1933 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1934 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1935 if (vif->p2p) {
29a90a49 1936 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1937 iwl_mvm_update_smps(mvm, vif,
1938 IWL_MVM_SMPS_REQ_PROT,
1939 IEEE80211_SMPS_DYNAMIC);
1940 }
0ae98812 1941 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE		 1942 /*
1943 * If update fails - SF might be running in associated
1944 * mode while disassociated - which is forbidden.
1945 */
1946 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1947 "Failed to update SF upon disassociation\n");
1948
6b28f978
EG		 1949 /*
1950 * If we get an assert during the connection (after the
1951 * station has been added, but before the vif is set
1952 * to associated), mac80211 will re-add the station and
1953 * then configure the vif. Since the vif is not
1954 * associated, we would remove the station here and
1955 * this would fail the recovery.
1956 */
1957 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1958 &mvm->status)) {
1959 /*
1960 * Remove AP station now that
1961 * the MAC is unassoc
1962 */
1963 ret = iwl_mvm_rm_sta_id(mvm, vif,
1964 mvmvif->ap_sta_id);
1965 if (ret)
1966 IWL_ERR(mvm,
1967 "failed to remove AP station\n");
1968
1969 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1970 mvm->d0i3_ap_sta_id =
1971 IWL_MVM_INVALID_STA;
1972 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1973 }
37577fe2 1974
8ca151b5 1975 /* remove quota for this interface */
7754ae79 1976 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1977 if (ret)
1978 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1979
1980 if (vif->p2p)
1981 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1982
1983 /* this will take the cleared BSSID from bss_conf */
1984 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1985 if (ret)
1986 IWL_ERR(mvm,
1987 "failed to update MAC %pM (clear after unassoc)\n",
1988 vif->addr);
8ca151b5 1989 }
a20fd398 1990
a07a8f37
SS		 1991 /*
1992 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1993 * However, on HW restart we should restore this data.
a07a8f37
SS		 1994 */
1995 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 1996 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 1997 ret = iwl_mvm_update_mu_groups(mvm, vif);
1998 if (ret)
1999 IWL_ERR(mvm,
2000 "failed to update VHT MU_MIMO groups\n");
2001 }
2002
e59647ea 2003 iwl_mvm_recalc_multicast(mvm);
34672bb3 2004 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2005
a20fd398
AO		 2006 /* reset rssi values */
2007 mvmvif->bf_data.ave_beacon_signal = 0;
2008
8e484f0b 2009 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2010 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2011 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2012 if (fw_has_capa(&mvm->fw->ucode_capa,
2013 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2014 iwl_mvm_config_scan(mvm);
b45242c9
AS		 2015 }
2016
2017 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2018 /*
b45242c9 2019 * We received a beacon from the associated AP so
210a544e
JB		 2020 * remove the session protection.
2021 */
3edfb5f4 2022 iwl_mvm_stop_session_protection(mvm, vif);
cc87d322 2023
cc87d322
EH		 2024 iwl_mvm_sf_update(mvm, vif, false);
2025 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2026 }
2027
283115fb
AA		 2028 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2029 /*
2030 * Send power command on every beacon change,
2031 * because we may have not enabled beacon abort yet.
2032 */
2033 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2034 ret = iwl_mvm_power_update_mac(mvm);
2035 if (ret)
2036 IWL_ERR(mvm, "failed to update power mode\n");
2037 }
2038
88f2fd73
MG		 2039 if (changes & BSS_CHANGED_TXPOWER) {
2040 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2041 bss_conf->txpower);
2042 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2043 }
a20fd398
AO		 2044
2045 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2046 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2047 /* reset cqm events tracking */
2048 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2049 if (mvmvif->bf_data.bf_enabled) {
2050 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2051 if (ret)
2052 IWL_ERR(mvm,
2053 "failed to update CQM thresholds\n");
2054 }
a20fd398 2055 }
2ee8f021
EP		 2056
2057 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2058 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2059 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2060 }
8ca151b5
JB		 2061}
2062
5023d966
JB		 2063static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2064 struct ieee80211_vif *vif)
8ca151b5
JB		 2065{
2066 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2067 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2068 int ret;
2069
576eeee9
EP		 2070 /*
2071 * iwl_mvm_mac_ctxt_add() might read directly from the device
2072 * (the system time), so make sure it is available.
2073 */
2074 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2075 if (ret)
2076 return ret;
2077
8ca151b5
JB		 2078 mutex_lock(&mvm->mutex);
2079
2080 /* Send the beacon template */
2081 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2082 if (ret)
2083 goto out_unlock;
2084
6e97b0d2
IP		 2085 /*
2086 * Re-calculate the tsf id, as the master-slave relations depend on the
2087 * beacon interval, which was not known when the AP interface was added.
2088 */
2089 if (vif->type == NL80211_IFTYPE_AP)
2090 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2091
94939080
GG		 2092 mvmvif->ap_assoc_sta_count = 0;
2093
8ca151b5
JB		 2094 /* Add the mac context */
2095 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2096 if (ret)
2097 goto out_unlock;
2098
2099 /* Perform the binding */
2100 ret = iwl_mvm_binding_add_vif(mvm, vif);
2101 if (ret)
2102 goto out_remove;
2103
ced19f26 2104 ret = iwl_mvm_add_mcast_sta(mvm, vif);
8ca151b5
JB		 2105 if (ret)
2106 goto out_unbind;
2107
ced19f26
SS		 2108 /* Send the bcast station. At this stage the TBTT and DTIM time events
2109 * are added and applied to the scheduler */
2110 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
26d6c16b 2111 if (ret)
ced19f26 2112 goto out_rm_mcast;
26d6c16b 2113
5691e218
IP		 2114 /* must be set before quota calculations */
2115 mvmvif->ap_ibss_active = true;
2116
a11e144e 2117 /* power updated needs to be done before quotas */
999609f1 2118 iwl_mvm_power_update_mac(mvm);
a11e144e 2119
7754ae79 2120 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2121 if (ret)
a11e144e 2122 goto out_quota_failed;
8ca151b5 2123
5023d966 2124 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2125 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2126 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2127
29a90a49
EP		 2128 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2129
8e484f0b 2130 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2131
f697267f
AN		 2132 /* we don't support TDLS during DCM */
2133 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2134 iwl_mvm_teardown_tdls_peers(mvm);
2135
939e4904 2136 goto out_unlock;
8ca151b5 2137
a11e144e 2138out_quota_failed:
999609f1 2139 iwl_mvm_power_update_mac(mvm);
5691e218 2140 mvmvif->ap_ibss_active = false;
013290aa 2141 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2142out_rm_mcast:
2143 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB		 2144out_unbind:
2145 iwl_mvm_binding_remove_vif(mvm, vif);
2146out_remove:
2147 iwl_mvm_mac_ctxt_remove(mvm, vif);
2148out_unlock:
2149 mutex_unlock(&mvm->mutex);
576eeee9 2150 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2151 return ret;
2152}
2153
5023d966
JB		 2154static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2155 struct ieee80211_vif *vif)
8ca151b5
JB		 2156{
2157 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2158 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2159
38a12b5b
JB		 2160 iwl_mvm_prepare_mac_removal(mvm, vif);
2161
8ca151b5
JB		 2162 mutex_lock(&mvm->mutex);
2163
664322fa 2164 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2165 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2166 iwl_mvm_remove_time_event(mvm, mvmvif,
2167 &mvmvif->time_event_data);
664322fa 2168 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2169 mvmvif->csa_countdown = false;
7f0a7c67 2170 }
664322fa 2171
003e5236
AO		 2172 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2173 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2174 mvm->csa_tx_block_bcn_timeout = 0;
2175 }
2176
5023d966 2177 mvmvif->ap_ibss_active = false;
1c87bbad 2178 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2179
8e484f0b 2180 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2181
29a90a49
EP		 2182 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2183
5023d966 2184 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2185 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2186 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2187
7754ae79 2188 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS		 2189
2190 /*
2191 * This is not very nice, but the simplest:
2192 * For older FWs removing the mcast sta before the bcast station may
2193 * cause assert 0x2b00.
2194 * This is fixed in later FW (which will stop beaconing when removing
2195 * bcast station).
2196 * So make the order of removal depend on the TLV
2197 */
2198 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2199 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2200 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2201 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2202 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2203 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2204
999609f1 2205 iwl_mvm_power_update_mac(mvm);
a11e144e 2206
8ca151b5
JB		 2207 iwl_mvm_mac_ctxt_remove(mvm, vif);
2208
2209 mutex_unlock(&mvm->mutex);
2210}
2211
5023d966
JB		 2212static void
2213iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2214 struct ieee80211_vif *vif,
2215 struct ieee80211_bss_conf *bss_conf,
2216 u32 changes)
8ca151b5 2217{
be2056fc 2218 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2219
be2056fc
IP		 2220 /* Changes will be applied when the AP/IBSS is started */
2221 if (!mvmvif->ap_ibss_active)
2222 return;
2223
863230da 2224 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2225 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2226 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2227 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2228
8ca151b5 2229 /* Need to send a new beacon template to the FW */
863230da
JB		 2230 if (changes & BSS_CHANGED_BEACON &&
2231 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2232 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2233
2234 if (changes & BSS_CHANGED_TXPOWER) {
2235 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2236 bss_conf->txpower);
2237 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2238 }
8ca151b5
JB		 2239}
2240
2241static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2242 struct ieee80211_vif *vif,
2243 struct ieee80211_bss_conf *bss_conf,
2244 u32 changes)
2245{
2246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2247
576eeee9
EP		 2248 /*
2249 * iwl_mvm_bss_info_changed_station() might call
2250 * iwl_mvm_protect_session(), which reads directly from
2251 * the device (the system time), so make sure it is available.
2252 */
2253 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2254 return;
2255
8ca151b5
JB		 2256 mutex_lock(&mvm->mutex);
2257
723f02ed 2258 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2259 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2260
8ca151b5
JB		 2261 switch (vif->type) {
2262 case NL80211_IFTYPE_STATION:
2263 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2264 break;
2265 case NL80211_IFTYPE_AP:
5023d966
JB		 2266 case NL80211_IFTYPE_ADHOC:
2267 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2268 break;
91b08c2d
AE		 2269 case NL80211_IFTYPE_MONITOR:
2270 if (changes & BSS_CHANGED_MU_GROUPS)
2271 iwl_mvm_update_mu_groups(mvm, vif);
2272 break;
8ca151b5
JB		 2273 default:
2274 /* shouldn't happen */
2275 WARN_ON_ONCE(1);
2276 }
2277
2278 mutex_unlock(&mvm->mutex);
576eeee9 2279 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2280}
2281
2282static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2283 struct ieee80211_vif *vif,
c56ef672 2284 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2285{
2286 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2287 int ret;
2288
6749dd80
LC		 2289 if (hw_req->req.n_channels == 0 ||
2290 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2291 return -EINVAL;
2292
2293 mutex_lock(&mvm->mutex);
6749dd80 2294 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2295 mutex_unlock(&mvm->mutex);
6749dd80 2296
8ca151b5
JB		 2297 return ret;
2298}
2299
2300static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2301 struct ieee80211_vif *vif)
2302{
2303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2304
2305 mutex_lock(&mvm->mutex);
2306
e7d3abab
LC		 2307 /* Due to a race condition, it's possible that mac80211 asks
2308 * us to stop a hw_scan when it's already stopped. This can
2309 * happen, for instance, if we stopped the scan ourselves,
2310 * called ieee80211_scan_completed() and the userspace called
2311 * cancel scan scan before ieee80211_scan_work() could run.
2312 * To handle that, simply return if the scan is not running.
2313 */
262888fc 2314 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2315 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2316
2317 mutex_unlock(&mvm->mutex);
2318}
2319
2320static void
2321iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2322 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2323 int num_frames,
2324 enum ieee80211_frame_release_type reason,
2325 bool more_data)
2326{
2327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2328
3e56eadf 2329 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2330
3e56eadf
JB		 2331 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2332 tids, more_data, false);
2333}
2334
2335static void
2336iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2337 struct ieee80211_sta *sta, u16 tids,
2338 int num_frames,
2339 enum ieee80211_frame_release_type reason,
2340 bool more_data)
2341{
2342 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2343
9a3fcf91 2344 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB		 2345
2346 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2347 tids, more_data, true);
8ca151b5
JB		 2348}
2349
65e25482
JB		 2350static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2351 enum sta_notify_cmd cmd,
2352 struct ieee80211_sta *sta)
8ca151b5
JB		 2353{
2354 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2355 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2356 unsigned long txqs = 0, tids = 0;
3e56eadf 2357 int tid;
8ca151b5 2358
960f864b
JB		 2359 /*
2360 * If we have TVQM then we get too high queue numbers - luckily
2361 * we really shouldn't get here with that because such hardware
2362 * should have firmware supporting buffer station offload.
2363 */
2364 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2365 return;
2366
c22b0ff5
EG		 2367 spin_lock_bh(&mvmsta->lock);
2368 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2369 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2370
6862fcee 2371 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS		 2372 continue;
2373
c22b0ff5
EG		 2374 __set_bit(tid_data->txq_id, &txqs);
2375
dd32162d 2376 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG		 2377 continue;
2378
2379 __set_bit(tid, &tids);
2380 }
2381
8ca151b5
JB		 2382 switch (cmd) {
2383 case STA_NOTIFY_SLEEP:
c22b0ff5 2384 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2385 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2386
2387 if (txqs)
2388 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2389 /*
2390 * The fw updates the STA to be asleep. Tx packets on the Tx
2391 * queues to this station will not be transmitted. The fw will
2392 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2393 */
2394 break;
2395 case STA_NOTIFY_AWAKE:
0ae98812 2396 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2397 break;
c22b0ff5
EG		 2398
2399 if (txqs)
2400 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2401 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2402 break;
2403 default:
2404 break;
2405 }
c22b0ff5 2406 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2407}
2408
65e25482
JB		 2409static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2410 struct ieee80211_vif *vif,
2411 enum sta_notify_cmd cmd,
2412 struct ieee80211_sta *sta)
2413{
2414 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2415}
2416
2417void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2418{
2419 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2420 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2421 struct ieee80211_sta *sta;
2422 struct iwl_mvm_sta *mvmsta;
2423 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2424
2425 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2426 return;
2427
2428 rcu_read_lock();
a9560029 2429 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB		 2430 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2431 rcu_read_unlock();
2432 return;
2433 }
2434
2435 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2436
2437 if (!mvmsta->vif ||
2438 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2439 rcu_read_unlock();
2440 return;
2441 }
2442
2443 if (mvmsta->sleeping != sleeping) {
2444 mvmsta->sleeping = sleeping;
2445 __iwl_mvm_mac_sta_notify(mvm->hw,
2446 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2447 sta);
2448 ieee80211_sta_ps_transition(sta, sleeping);
2449 }
2450
2451 if (sleeping) {
2452 switch (notif->type) {
2453 case IWL_MVM_PM_EVENT_AWAKE:
2454 case IWL_MVM_PM_EVENT_ASLEEP:
2455 break;
2456 case IWL_MVM_PM_EVENT_UAPSD:
2457 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2458 break;
2459 case IWL_MVM_PM_EVENT_PS_POLL:
2460 ieee80211_sta_pspoll(sta);
2461 break;
2462 default:
2463 break;
2464 }
2465 }
2466
2467 rcu_read_unlock();
2468}
2469
1ddbbb0c
JB		 2470static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2471 struct ieee80211_vif *vif,
2472 struct ieee80211_sta *sta)
2473{
2474 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2475 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2476
2477 /*
2478 * This is called before mac80211 does RCU synchronisation,
2479 * so here we already invalidate our internal RCU-protected
2480 * station pointer. The rest of the code will thus no longer
2481 * be able to find the station this way, and we don't rely
2482 * on further RCU synchronisation after the sta_state()
2483 * callback deleted the station.
2484 */
2485 mutex_lock(&mvm->mutex);
2486 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2487 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2488 ERR_PTR(-ENOENT));
94939080 2489
1ddbbb0c
JB		 2490 mutex_unlock(&mvm->mutex);
2491}
2492
bd1ba664
JB		 2493static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2494 const u8 *bssid)
2495{
2496 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2497 return;
2498
c5241b0c 2499 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2500 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2501 return;
2502 }
2503
11dee0b4
EG		 2504 if (!vif->p2p &&
2505 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2506 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2507 return;
2508 }
2509
2510 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2511}
2512
1e8f1329
GBA		 2513static void
2514iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2515 struct ieee80211_vif *vif, u8 *peer_addr,
2516 enum nl80211_tdls_operation action)
2517{
2518 struct iwl_fw_dbg_trigger_tlv *trig;
2519 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2520
2521 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2522 return;
2523
2524 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2525 tdls_trig = (void *)trig->data;
7174beb6
JB		 2526 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2527 ieee80211_vif_to_wdev(vif), trig))
1e8f1329
GBA		 2528 return;
2529
2530 if (!(tdls_trig->action_bitmap & BIT(action)))
2531 return;
2532
2533 if (tdls_trig->peer_mode &&
2534 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2535 return;
2536
7174beb6
JB		 2537 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2538 "TDLS event occurred, peer %pM, action %d",
2539 peer_addr, action);
1e8f1329
GBA		 2540}
2541
24afba76
LK		 2542static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2543 struct iwl_mvm_sta *mvm_sta)
2544{
2545 struct iwl_mvm_tid_data *tid_data;
2546 struct sk_buff *skb;
2547 int i;
2548
2549 spin_lock_bh(&mvm_sta->lock);
2550 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2551 tid_data = &mvm_sta->tid_data[i];
7e39a00d
AS		 2552
2553 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2554 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2555
2556 /*
2557 * The first deferred frame should've stopped the MAC
2558 * queues, so we should never get a second deferred
2559 * frame for the RA/TID.
2560 */
2561 iwl_mvm_start_mac_queues(mvm, info->hw_queue);
24afba76 2562 ieee80211_free_txskb(mvm->hw, skb);
7e39a00d 2563 }
24afba76
LK		 2564 }
2565 spin_unlock_bh(&mvm_sta->lock);
2566}
2567
8ca151b5
JB		 2568static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2569 struct ieee80211_vif *vif,
2570 struct ieee80211_sta *sta,
2571 enum ieee80211_sta_state old_state,
2572 enum ieee80211_sta_state new_state)
2573{
2574 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2575 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2576 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 2577 int ret;
2578
2579 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2580 sta->addr, old_state, new_state);
2581
2582 /* this would be a mac80211 bug ... but don't crash */
2583 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2584 return -EINVAL;
2585
24afba76
LK		 2586 /*
2587 * If we are in a STA removal flow and in DQA mode:
2588 *
2589 * This is after the sync_rcu part, so the queues have already been
2590 * flushed. No more TXs on their way in mac80211's path, and no more in
2591 * the queues.
2592 * Also, we won't be getting any new TX frames for this station.
2593 * What we might have are deferred TX frames that need to be taken care
2594 * of.
2595 *
2596 * Drop any still-queued deferred-frame before removing the STA, and
2597 * make sure the worker is no longer handling frames for this STA.
2598 */
2599 if (old_state == IEEE80211_STA_NONE &&
c8f54701 2600 new_state == IEEE80211_STA_NOTEXIST) {
24afba76
LK		 2601 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2602 flush_work(&mvm->add_stream_wk);
2603
2604 /*
2605 * No need to make sure deferred TX indication is off since the
2606 * worker will already remove it if it was on
2607 */
2608 }
2609
8ca151b5 2610 mutex_lock(&mvm->mutex);
6ea29ce5
JB		 2611 /* track whether or not the station is associated */
2612 mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2613
8ca151b5
JB		 2614 if (old_state == IEEE80211_STA_NOTEXIST &&
2615 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2616 /*
2617 * Firmware bug - it'll crash if the beacon interval is less
2618 * than 16. We can't avoid connecting at all, so refuse the
2619 * station state change, this will cause mac80211 to abandon
2620 * attempts to connect to this AP, and eventually wpa_s will
2621 * blacklist the AP...
2622 */
2623 if (vif->type == NL80211_IFTYPE_STATION &&
2624 vif->bss_conf.beacon_int < 16) {
2625 IWL_ERR(mvm,
2626 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2627 sta->addr, vif->bss_conf.beacon_int);
2628 ret = -EINVAL;
2629 goto out_unlock;
2630 }
cf7b491d
AN		 2631
2632 if (sta->tdls &&
2633 (vif->p2p ||
fa3d07e4
AN		 2634 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2635 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2636 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2637 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2638 ret = -EBUSY;
2639 goto out_unlock;
2640 }
2641
8ca151b5 2642 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2643 if (sta->tdls && ret == 0) {
fa3d07e4 2644 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2645 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2646 NL80211_TDLS_SETUP);
2647 }
8ca151b5
JB		 2648 } else if (old_state == IEEE80211_STA_NONE &&
2649 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2650 /*
2651 * EBS may be disabled due to previous failures reported by FW.
2652 * Reset EBS status here assuming environment has been changed.
2653 */
2654 mvm->last_ebs_successful = true;
bd1ba664 2655 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2656 ret = 0;
2657 } else if (old_state == IEEE80211_STA_AUTH &&
2658 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2659 if (vif->type == NL80211_IFTYPE_AP) {
2660 mvmvif->ap_assoc_sta_count++;
2661 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2662 }
735a0045
GM		 2663
2664 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2665 true);
7a453973 2666 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB		 2667 } else if (old_state == IEEE80211_STA_ASSOC &&
2668 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2669
2670 /* we don't support TDLS during DCM */
2671 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2672 iwl_mvm_teardown_tdls_peers(mvm);
2673
1e8f1329
GBA		 2674 if (sta->tdls)
2675 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2676 NL80211_TDLS_ENABLE_LINK);
2677
7df15b1e 2678 /* enable beacon filtering */
fa7b2e7f 2679 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2680 ret = 0;
2681 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2682 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2683 /* disable beacon filtering */
a1022927 2684 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2685 ret = 0;
2686 } else if (old_state == IEEE80211_STA_ASSOC &&
2687 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2688 if (vif->type == NL80211_IFTYPE_AP) {
2689 mvmvif->ap_assoc_sta_count--;
2690 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2691 }
8ca151b5
JB		 2692 ret = 0;
2693 } else if (old_state == IEEE80211_STA_AUTH &&
2694 new_state == IEEE80211_STA_NONE) {
2695 ret = 0;
2696 } else if (old_state == IEEE80211_STA_NONE &&
2697 new_state == IEEE80211_STA_NOTEXIST) {
2698 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2699 if (sta->tdls) {
fa3d07e4 2700 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2701 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2702 NL80211_TDLS_DISABLE_LINK);
2703 }
8ca151b5
JB		 2704 } else {
2705 ret = -EIO;
2706 }
48bc1307 2707 out_unlock:
8ca151b5
JB		 2708 mutex_unlock(&mvm->mutex);
2709
9c126cd6
LK		 2710 if (sta->tdls && ret == 0) {
2711 if (old_state == IEEE80211_STA_NOTEXIST &&
2712 new_state == IEEE80211_STA_NONE)
2713 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2714 else if (old_state == IEEE80211_STA_NONE &&
2715 new_state == IEEE80211_STA_NOTEXIST)
2716 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2717 }
2718
8ca151b5
JB		 2719 return ret;
2720}
2721
2722static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2723{
2724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2725
2726 mvm->rts_threshold = value;
2727
2728 return 0;
2729}
2730
1f3b0ff8
LE		 2731static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2732 struct ieee80211_vif *vif,
2733 struct ieee80211_sta *sta, u32 changed)
2734{
2735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2736
2737 if (vif->type == NL80211_IFTYPE_STATION &&
2738 changed & IEEE80211_RC_NSS_CHANGED)
2739 iwl_mvm_sf_update(mvm, vif, false);
2740}
2741
8ca151b5
JB		 2742static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2743 struct ieee80211_vif *vif, u16 ac,
2744 const struct ieee80211_tx_queue_params *params)
2745{
2746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2747 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2748
2749 mvmvif->queue_params[ac] = *params;
2750
2751 /*
2752 * No need to update right away, we'll get BSS_CHANGED_QOS
2753 * The exception is P2P_DEVICE interface which needs immediate update.
2754 */
2755 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2756 int ret;
2757
2758 mutex_lock(&mvm->mutex);
3dfd3a97 2759 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2760 mutex_unlock(&mvm->mutex);
2761 return ret;
2762 }
2763 return 0;
2764}
2765
2766static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2767 struct ieee80211_vif *vif)
2768{
2769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2770 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2771 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2772
2773 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2774 return;
2775
576eeee9
EP		 2776 /*
2777 * iwl_mvm_protect_session() reads directly from the device
2778 * (the system time), so make sure it is available.
2779 */
2780 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2781 return;
2782
8ca151b5
JB		 2783 mutex_lock(&mvm->mutex);
2784 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2785 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2786 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2787
2788 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2789}
2790
35a000b7
DS		 2791static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2792 struct ieee80211_vif *vif,
2793 struct cfg80211_sched_scan_request *req,
633e2713 2794 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2795{
2796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2797
35a000b7 2798 int ret;
4660dfbb 2799
35a000b7
DS		 2800 mutex_lock(&mvm->mutex);
2801
1f940386 2802 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2803 ret = -EBUSY;
2804 goto out;
2805 }
2806
19945dfb 2807 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2808
35a000b7
DS		 2809out:
2810 mutex_unlock(&mvm->mutex);
2811 return ret;
2812}
2813
37e3308c
JB		 2814static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2815 struct ieee80211_vif *vif)
35a000b7
DS		 2816{
2817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2818 int ret;
35a000b7
DS		 2819
2820 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2821
2822 /* Due to a race condition, it's possible that mac80211 asks
2823 * us to stop a sched_scan when it's already stopped. This
2824 * can happen, for instance, if we stopped the scan ourselves,
2825 * called ieee80211_sched_scan_stopped() and the userspace called
2826 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2827 * could run. To handle this, simply return if the scan is
2828 * not running.
2829 */
262888fc 2830 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2831 mutex_unlock(&mvm->mutex);
2832 return 0;
2833 }
2834
c7d42480 2835 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2836 mutex_unlock(&mvm->mutex);
33ea27f6 2837 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2838
33ea27f6 2839 return ret;
35a000b7
DS		 2840}
2841
8ca151b5
JB		 2842static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2843 enum set_key_cmd cmd,
2844 struct ieee80211_vif *vif,
2845 struct ieee80211_sta *sta,
2846 struct ieee80211_key_conf *key)
2847{
2848 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2849 struct iwl_mvm_sta *mvmsta;
2850 struct iwl_mvm_key_pn *ptk_pn;
2851 int keyidx = key->keyidx;
8ca151b5 2852 int ret;
d6ee54a9 2853 u8 key_offset;
8ca151b5 2854
3b37f4c9 2855 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 2856 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2857 return -EOPNOTSUPP;
2858 }
2859
2860 switch (key->cipher) {
2861 case WLAN_CIPHER_SUITE_TKIP:
2862 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2863 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2864 break;
ca8c0f4b 2865 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2866 case WLAN_CIPHER_SUITE_GCMP:
2867 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS		 2868 if (!iwl_mvm_has_new_tx_api(mvm))
2869 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 2870 break;
8ca151b5 2871 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2872 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2873 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2874 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2875 break;
2876 case WLAN_CIPHER_SUITE_WEP40:
2877 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2878 /* For non-client mode, only use WEP keys for TX as we probably
2879 * don't have a station yet anyway and would then have to keep
2880 * track of the keys, linking them to each of the clients/peers
2881 * as they appear. For now, don't do that, for performance WEP
2882 * offload doesn't really matter much, but we need it for some
2883 * other offload features in client mode.
8ca151b5 2884 */
ba3943b0
JB		 2885 if (vif->type != NL80211_IFTYPE_STATION)
2886 return 0;
2887 break;
8ca151b5 2888 default:
e36e5433
MS		 2889 /* currently FW supports only one optional cipher scheme */
2890 if (hw->n_cipher_schemes &&
2891 hw->cipher_schemes->cipher == key->cipher)
2892 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2893 else
2894 return -EOPNOTSUPP;
8ca151b5
JB		 2895 }
2896
2897 mutex_lock(&mvm->mutex);
2898
2899 switch (cmd) {
2900 case SET_KEY:
5023d966
JB		 2901 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2902 vif->type == NL80211_IFTYPE_AP) && !sta) {
2903 /*
2904 * GTK on AP interface is a TX-only key, return 0;
2905 * on IBSS they're per-station and because we're lazy
2906 * we don't support them for RX, so do the same.
8e160ab8 2907 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2908 */
8e160ab8
AB		 2909 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2910 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2911 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2912 ret = -EOPNOTSUPP;
2913 else
2914 ret = 0;
85aeb58c
DS		 2915
2916 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2917 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2918 !iwl_mvm_has_new_tx_api(mvm)) {
2919 key->hw_key_idx = STA_KEY_IDX_INVALID;
2920 break;
2921 }
6caffd4f
JB		 2922 }
2923
b546dcd6
JB		 2924 /* During FW restart, in order to restore the state as it was,
2925 * don't try to reprogram keys we previously failed for.
2926 */
2927 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2928 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2929 IWL_DEBUG_MAC80211(mvm,
2930 "skip invalid idx key programming during restart\n");
2931 ret = 0;
2932 break;
2933 }
2934
f5e28eac
JB		 2935 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2936 sta && iwl_mvm_has_new_rx_api(mvm) &&
2937 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2938 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2939 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2940 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2941 struct ieee80211_key_seq seq;
2942 int tid, q;
2943
2944 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2945 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2946 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2947 mvm->trans->num_rx_queues *
2948 sizeof(ptk_pn->q[0]),
2949 GFP_KERNEL);
2950 if (!ptk_pn) {
2951 ret = -ENOMEM;
2952 break;
2953 }
2954
2955 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2956 ieee80211_get_key_rx_seq(key, tid, &seq);
2957 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2958 memcpy(ptk_pn->q[q].pn[tid],
2959 seq.ccmp.pn,
2960 IEEE80211_CCMP_PN_LEN);
2961 }
2962
2963 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2964 }
2965
d6ee54a9
LC		 2966 /* in HW restart reuse the index, otherwise request a new one */
2967 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2968 key_offset = key->hw_key_idx;
2969 else
2970 key_offset = STA_KEY_IDX_INVALID;
2971
8ca151b5 2972 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2973 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2974 if (ret) {
2975 IWL_WARN(mvm, "set key failed\n");
2976 /*
2977 * can't add key for RX, but we don't need it
2978 * in the device for TX so still return 0
2979 */
6caffd4f 2980 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2981 ret = 0;
2982 }
2983
2984 break;
2985 case DISABLE_KEY:
6caffd4f
JB		 2986 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2987 ret = 0;
2988 break;
2989 }
2990
f5e28eac
JB		 2991 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2992 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2993 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2994 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2995 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2996 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2997 ptk_pn = rcu_dereference_protected(
2998 mvmsta->ptk_pn[keyidx],
2999 lockdep_is_held(&mvm->mutex));
3000 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3001 if (ptk_pn)
3002 kfree_rcu(ptk_pn, rcu_head);
3003 }
3004
8ca151b5
JB		 3005 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3006 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3007 break;
3008 default:
3009 ret = -EINVAL;
3010 }
3011
3012 mutex_unlock(&mvm->mutex);
3013 return ret;
3014}
3015
3016static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3017 struct ieee80211_vif *vif,
3018 struct ieee80211_key_conf *keyconf,
3019 struct ieee80211_sta *sta,
3020 u32 iv32, u16 *phase1key)
3021{
3022 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3023
5023d966
JB		 3024 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3025 return;
3026
8ca151b5
JB		 3027 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3028}
3029
3030
b112889c
AM		 3031static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3032 struct iwl_rx_packet *pkt, void *data)
3033{
3034 struct iwl_mvm *mvm =
3035 container_of(notif_wait, struct iwl_mvm, notif_wait);
3036 struct iwl_hs20_roc_res *resp;
3037 int resp_len = iwl_rx_packet_payload_len(pkt);
3038 struct iwl_mvm_time_event_data *te_data = data;
3039
3040 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3041 return true;
3042
3043 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3044 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3045 return true;
3046 }
3047
3048 resp = (void *)pkt->data;
3049
3050 IWL_DEBUG_TE(mvm,
3051 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3052 resp->status, resp->event_unique_id);
3053
3054 te_data->uid = le32_to_cpu(resp->event_unique_id);
3055 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3056 te_data->uid);
3057
3058 spin_lock_bh(&mvm->time_event_lock);
3059 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3060 spin_unlock_bh(&mvm->time_event_lock);
3061
3062 return true;
3063}
3064
dc28e12f
MG		 3065#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3066#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3067#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3068#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3069#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 3070static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3071 struct ieee80211_channel *channel,
3072 struct ieee80211_vif *vif,
3073 int duration)
3074{
3075 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3076 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3077 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3078 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3079 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 3080 u32 dtim_interval = vif->bss_conf.dtim_period *
3081 vif->bss_conf.beacon_int;
3082 u32 req_dur, delay;
b112889c
AM		 3083 struct iwl_hs20_roc_req aux_roc_req = {
3084 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3085 .id_and_color =
3086 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3087 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3088 /* Set the channel info data */
57fbcce3 3089 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 3090 PHY_BAND_24 : PHY_BAND_5,
3091 .channel_info.channel = channel->hw_value,
3092 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3093 /* Set the time and duration */
3094 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 3095 };
3096
dc28e12f
MG		 3097 delay = AUX_ROC_MIN_DELAY;
3098 req_dur = MSEC_TO_TU(duration);
3099
3100 /*
3101 * If we are associated we want the delay time to be at least one
3102 * dtim interval so that the FW can wait until after the DTIM and
3103 * then start the time event, this will potentially allow us to
3104 * remain off-channel for the max duration.
3105 * Since we want to use almost a whole dtim interval we would also
3106 * like the delay to be for 2-3 dtim intervals, in case there are
3107 * other time events with higher priority.
3108 */
3109 if (vif->bss_conf.assoc) {
3110 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3111 /* We cannot remain off-channel longer than the DTIM interval */
3112 if (dtim_interval <= req_dur) {
3113 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3114 if (req_dur <= AUX_ROC_MIN_DURATION)
3115 req_dur = dtim_interval -
3116 AUX_ROC_MIN_SAFETY_BUFFER;
3117 }
3118 }
3119
3120 aux_roc_req.duration = cpu_to_le32(req_dur);
3121 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3122
3123 IWL_DEBUG_TE(mvm,
3124 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3125 channel->hw_value, req_dur, duration, delay,
3126 dtim_interval);
b112889c
AM		 3127 /* Set the node address */
3128 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3129
a6cc5163
MG		 3130 lockdep_assert_held(&mvm->mutex);
3131
3132 spin_lock_bh(&mvm->time_event_lock);
3133
3134 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3135 spin_unlock_bh(&mvm->time_event_lock);
3136 return -EIO;
3137 }
3138
b112889c
AM		 3139 te_data->vif = vif;
3140 te_data->duration = duration;
3141 te_data->id = HOT_SPOT_CMD;
3142
b112889c
AM		 3143 spin_unlock_bh(&mvm->time_event_lock);
3144
3145 /*
3146 * Use a notification wait, which really just processes the
3147 * command response and doesn't wait for anything, in order
3148 * to be able to process the response and get the UID inside
3149 * the RX path. Using CMD_WANT_SKB doesn't work because it
3150 * stores the buffer and then wakes up this thread, by which
3151 * time another notification (that the time event started)
3152 * might already be processed unsuccessfully.
3153 */
3154 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3155 time_event_response,
3156 ARRAY_SIZE(time_event_response),
3157 iwl_mvm_rx_aux_roc, te_data);
3158
3159 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3160 &aux_roc_req);
3161
3162 if (res) {
3163 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3164 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3165 goto out_clear_te;
3166 }
3167
3168 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3169 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3170 /* should never fail */
3171 WARN_ON_ONCE(res);
3172
3173 if (res) {
3174 out_clear_te:
3175 spin_lock_bh(&mvm->time_event_lock);
3176 iwl_mvm_te_clear_data(mvm, te_data);
3177 spin_unlock_bh(&mvm->time_event_lock);
3178 }
3179
3180 return res;
3181}
3182
8ca151b5
JB		 3183static int iwl_mvm_roc(struct ieee80211_hw *hw,
3184 struct ieee80211_vif *vif,
3185 struct ieee80211_channel *channel,
d339d5ca
IP		 3186 int duration,
3187 enum ieee80211_roc_type type)
8ca151b5
JB		 3188{
3189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3190 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3191 struct cfg80211_chan_def chandef;
31d385ae
IP		 3192 struct iwl_mvm_phy_ctxt *phy_ctxt;
3193 int ret, i;
3194
3195 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3196 duration, type);
8ca151b5 3197
6ed13164
MG		 3198 flush_work(&mvm->roc_done_wk);
3199
a6cc5163
MG		 3200 mutex_lock(&mvm->mutex);
3201
b112889c
AM		 3202 switch (vif->type) {
3203 case NL80211_IFTYPE_STATION:
859d914c
JB		 3204 if (fw_has_capa(&mvm->fw->ucode_capa,
3205 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3206 /* Use aux roc framework (HS20) */
3207 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3208 vif, duration);
3209 goto out_unlock;
3210 }
3211 IWL_ERR(mvm, "hotspot not supported\n");
3212 ret = -EINVAL;
a6cc5163 3213 goto out_unlock;
b112889c
AM		 3214 case NL80211_IFTYPE_P2P_DEVICE:
3215 /* handle below */
3216 break;
3217 default:
3218 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3219 ret = -EINVAL;
3220 goto out_unlock;
8ca151b5
JB		 3221 }
3222
31d385ae
IP		 3223 for (i = 0; i < NUM_PHY_CTX; i++) {
3224 phy_ctxt = &mvm->phy_ctxts[i];
3225 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3226 continue;
3227
3228 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3229 /*
3230 * Unbind the P2P_DEVICE from the current PHY context,
3231 * and if the PHY context is not used remove it.
3232 */
3233 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3234 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3235 goto out_unlock;
3236
3237 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3238
3239 /* Bind the P2P_DEVICE to the current PHY Context */
3240 mvmvif->phy_ctxt = phy_ctxt;
3241
3242 ret = iwl_mvm_binding_add_vif(mvm, vif);
3243 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3244 goto out_unlock;
3245
3246 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3247 goto schedule_time_event;
3248 }
3249 }
3250
3251 /* Need to update the PHY context only if the ROC channel changed */
3252 if (channel == mvmvif->phy_ctxt->channel)
3253 goto schedule_time_event;
3254
8ca151b5 3255 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3256
31d385ae
IP		 3257 /*
3258 * Change the PHY context configuration as it is currently referenced
3259 * only by the P2P Device MAC
3260 */
3261 if (mvmvif->phy_ctxt->ref == 1) {
3262 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3263 &chandef, 1, 1);
3264 if (ret)
3265 goto out_unlock;
3266 } else {
3267 /*
3268 * The PHY context is shared with other MACs. Need to remove the
3269 * P2P Device from the binding, allocate an new PHY context and
3270 * create a new binding
3271 */
3272 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3273 if (!phy_ctxt) {
3274 ret = -ENOSPC;
3275 goto out_unlock;
3276 }
3277
3278 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3279 1, 1);
3280 if (ret) {
3281 IWL_ERR(mvm, "Failed to change PHY context\n");
3282 goto out_unlock;
3283 }
3284
3285 /* Unbind the P2P_DEVICE from the current PHY context */
3286 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3287 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3288 goto out_unlock;
3289
3290 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3291
3292 /* Bind the P2P_DEVICE to the new allocated PHY context */
3293 mvmvif->phy_ctxt = phy_ctxt;
3294
3295 ret = iwl_mvm_binding_add_vif(mvm, vif);
3296 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3297 goto out_unlock;
3298
3299 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3300 }
3301
3302schedule_time_event:
8ca151b5 3303 /* Schedule the time events */
e635c797 3304 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3305
31d385ae 3306out_unlock:
8ca151b5
JB		 3307 mutex_unlock(&mvm->mutex);
3308 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3309 return ret;
3310}
3311
3312static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3313{
3314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3315
3316 IWL_DEBUG_MAC80211(mvm, "enter\n");
3317
3318 mutex_lock(&mvm->mutex);
bf5da87f 3319 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3320 mutex_unlock(&mvm->mutex);
3321
3322 IWL_DEBUG_MAC80211(mvm, "leave\n");
3323 return 0;
3324}
3325
b08c1d97
LC		 3326static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3327 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3328{
fe0f2de3
IP		 3329 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3330 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3331 int ret;
3332
b08c1d97
LC		 3333 lockdep_assert_held(&mvm->mutex);
3334
53a9d61e 3335 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3336
fe0f2de3
IP		 3337 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3338 if (!phy_ctxt) {
3339 ret = -ENOSPC;
3340 goto out;
3341 }
8ca151b5 3342
dcbc3e1a 3343 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3344 ctx->rx_chains_static,
3345 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3346 if (ret) {
3347 IWL_ERR(mvm, "Failed to add PHY context\n");
3348 goto out;
3349 }
3350
53a9d61e 3351 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3352 *phy_ctxt_id = phy_ctxt->id;
3353out:
b08c1d97
LC		 3354 return ret;
3355}
3356
3357static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3358 struct ieee80211_chanctx_conf *ctx)
3359{
3360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3361 int ret;
3362
3363 mutex_lock(&mvm->mutex);
3364 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3365 mutex_unlock(&mvm->mutex);
b08c1d97 3366
8ca151b5
JB		 3367 return ret;
3368}
3369
b08c1d97
LC		 3370static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3371 struct ieee80211_chanctx_conf *ctx)
3372{
3373 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3374 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3375
3376 lockdep_assert_held(&mvm->mutex);
3377
3378 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3379}
3380
8ca151b5
JB		 3381static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3382 struct ieee80211_chanctx_conf *ctx)
3383{
3384 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3385
3386 mutex_lock(&mvm->mutex);
b08c1d97 3387 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3388 mutex_unlock(&mvm->mutex);
3389}
3390
3391static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3392 struct ieee80211_chanctx_conf *ctx,
3393 u32 changed)
3394{
3395 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3396 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3397 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3398
31d385ae
IP		 3399 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3400 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3401 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3402 IEEE80211_CHANCTX_CHANGE_RADAR |
3403 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3404 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3405 phy_ctxt->ref, changed))
3406 return;
3407
8ca151b5 3408 mutex_lock(&mvm->mutex);
4d66449a 3409 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3410 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3411 ctx->rx_chains_static,
3412 ctx->rx_chains_dynamic);
3413 mutex_unlock(&mvm->mutex);
3414}
3415
b08c1d97
LC		 3416static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3417 struct ieee80211_vif *vif,
f0c97783
LC		 3418 struct ieee80211_chanctx_conf *ctx,
3419 bool switching_chanctx)
8ca151b5 3420{
fe0f2de3
IP		 3421 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3422 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3423 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3424 int ret;
3425
b08c1d97 3426 lockdep_assert_held(&mvm->mutex);
8ca151b5 3427
fe0f2de3 3428 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3429
3430 switch (vif->type) {
3431 case NL80211_IFTYPE_AP:
4741dd04
LC		 3432 /* only needed if we're switching chanctx (i.e. during CSA) */
3433 if (switching_chanctx) {
bd3398e2
AO		 3434 mvmvif->ap_ibss_active = true;
3435 break;
3436 }
5023d966 3437 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3438 /*
3439 * The AP binding flow is handled as part of the start_ap flow
5023d966 3440 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3441 */
3442 ret = 0;
b08c1d97 3443 goto out;
8ca151b5 3444 case NL80211_IFTYPE_STATION:
2533edce 3445 break;
8ca151b5 3446 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3447 /* always disable PS when a monitor interface is active */
3448 mvmvif->ps_disabled = true;
8ca151b5
JB		 3449 break;
3450 default:
3451 ret = -EINVAL;
b08c1d97 3452 goto out;
8ca151b5
JB		 3453 }
3454
3455 ret = iwl_mvm_binding_add_vif(mvm, vif);
3456 if (ret)
b08c1d97 3457 goto out;
8ca151b5
JB		 3458
3459 /*
92d85562
AB		 3460 * Power state must be updated before quotas,
3461 * otherwise fw will complain.
3462 */
999609f1 3463 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3464
3465 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3466 * interfaces. For the other types, the bss_info changed flow
3467 * will handle quota settings.
3468 */
3469 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3470 mvmvif->monitor_active = true;
7754ae79 3471 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3472 if (ret)
3473 goto out_remove_binding;
0e39eb03
CRI		 3474
3475 ret = iwl_mvm_add_snif_sta(mvm, vif);
3476 if (ret)
3477 goto out_remove_binding;
3478
8ca151b5
JB		 3479 }
3480
bd3398e2 3481 /* Handle binding during CSA */
a57c688d 3482 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3483 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3484 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3485 }
3486
4741dd04 3487 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3488 u32 duration = 2 * vif->bss_conf.beacon_int;
3489
3490 /* iwl_mvm_protect_session() reads directly from the
3491 * device (the system time), so make sure it is
3492 * available.
3493 */
3494 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3495 if (ret)
3496 goto out_remove_binding;
3497
3498 /* Protect the session to make sure we hear the first
3499 * beacon on the new channel.
3500 */
3501 iwl_mvm_protect_session(mvm, vif, duration, duration,
3502 vif->bss_conf.beacon_int / 2,
3503 true);
3504
3505 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3506
7754ae79 3507 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3508 }
3509
b08c1d97 3510 goto out;
8ca151b5 3511
b08c1d97 3512out_remove_binding:
8ca151b5 3513 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3514 iwl_mvm_power_update_mac(mvm);
b08c1d97 3515out:
8ca151b5
JB		 3516 if (ret)
3517 mvmvif->phy_ctxt = NULL;
3518 return ret;
3519}
b08c1d97
LC		 3520static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3521 struct ieee80211_vif *vif,
3522 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3523{
3524 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3525 int ret;
8ca151b5
JB		 3526
3527 mutex_lock(&mvm->mutex);
f0c97783 3528 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3529 mutex_unlock(&mvm->mutex);
3530
3531 return ret;
3532}
3533
3534static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3535 struct ieee80211_vif *vif,
f0c97783
LC		 3536 struct ieee80211_chanctx_conf *ctx,
3537 bool switching_chanctx)
b08c1d97
LC		 3538{
3539 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3540 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3541
3542 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3543
3544 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3545
8ca151b5 3546 switch (vif->type) {
5023d966 3547 case NL80211_IFTYPE_ADHOC:
b08c1d97 3548 goto out;
8ca151b5 3549 case NL80211_IFTYPE_MONITOR:
1e1391ca 3550 mvmvif->monitor_active = false;
2533edce 3551 mvmvif->ps_disabled = false;
0e39eb03 3552 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3553 break;
bd3398e2
AO		 3554 case NL80211_IFTYPE_AP:
3555 /* This part is triggered only during CSA */
4741dd04 3556 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3557 goto out;
bd3398e2 3558
7ef0aab6
AO		 3559 mvmvif->csa_countdown = false;
3560
003e5236
AO		 3561 /* Set CS bit on all the stations */
3562 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3563
3564 /* Save blocked iface, the timeout is set on the next beacon */
3565 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3566
bd3398e2 3567 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3568 break;
3569 case NL80211_IFTYPE_STATION:
3570 if (!switching_chanctx)
3571 break;
3572
3573 disabled_vif = vif;
3574
3dfd3a97 3575 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3576 break;
8ca151b5
JB		 3577 default:
3578 break;
3579 }
3580
7754ae79 3581 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3582 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3583
b08c1d97 3584out:
a11e144e 3585 mvmvif->phy_ctxt = NULL;
999609f1 3586 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3587}
3588
3589static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3590 struct ieee80211_vif *vif,
3591 struct ieee80211_chanctx_conf *ctx)
3592{
3593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3594
3595 mutex_lock(&mvm->mutex);
f0c97783 3596 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3597 mutex_unlock(&mvm->mutex);
3598}
3599
50cc9574
LC		 3600static int
3601iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3602 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3603{
b08c1d97
LC		 3604 int ret;
3605
b08c1d97 3606 mutex_lock(&mvm->mutex);
f0c97783 3607 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3608 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3609
3610 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3611 if (ret) {
3612 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3613 goto out_reassign;
3614 }
3615
f0c97783
LC		 3616 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3617 true);
b08c1d97
LC		 3618 if (ret) {
3619 IWL_ERR(mvm,
3620 "failed to assign new_ctx during channel switch\n");
3621 goto out_remove;
3622 }
3623
f697267f
AN		 3624 /* we don't support TDLS during DCM - can be caused by channel switch */
3625 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3626 iwl_mvm_teardown_tdls_peers(mvm);
3627
b08c1d97
LC		 3628 goto out;
3629
3630out_remove:
3631 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3632
3633out_reassign:
6fd1fb63 3634 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3635 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3636 goto out_restart;
3637 }
3638
6fd1fb63
LC		 3639 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3640 true)) {
b08c1d97
LC		 3641 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3642 goto out_restart;
3643 }
3644
3645 goto out;
3646
3647out_restart:
3648 /* things keep failing, better restart the hw */
3649 iwl_mvm_nic_restart(mvm, false);
3650
3651out:
3652 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3653
3654 return ret;
3655}
3656
48a256e8
LC		 3657static int
3658iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3659 struct ieee80211_vif_chanctx_switch *vifs)
3660{
3661 int ret;
3662
3663 mutex_lock(&mvm->mutex);
3664 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3665
3666 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3667 true);
3668 if (ret) {
3669 IWL_ERR(mvm,
3670 "failed to assign new_ctx during channel switch\n");
3671 goto out_reassign;
3672 }
3673
3674 goto out;
3675
3676out_reassign:
3677 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3678 true)) {
3679 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3680 goto out_restart;
3681 }
3682
3683 goto out;
3684
3685out_restart:
3686 /* things keep failing, better restart the hw */
3687 iwl_mvm_nic_restart(mvm, false);
3688
3689out:
3690 mutex_unlock(&mvm->mutex);
3691
3692 return ret;
3693}
3694
50cc9574
LC		 3695static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3696 struct ieee80211_vif_chanctx_switch *vifs,
3697 int n_vifs,
3698 enum ieee80211_chanctx_switch_mode mode)
3699{
3700 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3701 int ret;
3702
3703 /* we only support a single-vif right now */
3704 if (n_vifs > 1)
3705 return -EOPNOTSUPP;
3706
3707 switch (mode) {
3708 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3709 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3710 break;
3711 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3712 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3713 break;
3714 default:
3715 ret = -EOPNOTSUPP;
3716 break;
3717 }
3718
b08c1d97
LC		 3719 return ret;
3720}
3721
2f0282db
JB		 3722static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3723{
3724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3725
3726 return mvm->ibss_manager;
3727}
3728
8ca151b5
JB		 3729static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3730 struct ieee80211_sta *sta,
3731 bool set)
3732{
3733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3734 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3735
3736 if (!mvm_sta || !mvm_sta->vif) {
3737 IWL_ERR(mvm, "Station is not associated to a vif\n");
3738 return -EINVAL;
3739 }
3740
3741 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3742}
3743
507cadf2
DS		 3744#ifdef CONFIG_NL80211_TESTMODE
3745static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3746 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3747 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3748 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3749};
3750
3751static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3752 struct ieee80211_vif *vif,
3753 void *data, int len)
3754{
3755 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3756 int err;
3757 u32 noa_duration;
3758
fceb6435
JB		 3759 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3760 NULL);
507cadf2
DS		 3761 if (err)
3762 return err;
3763
3764 if (!tb[IWL_MVM_TM_ATTR_CMD])
3765 return -EINVAL;
3766
3767 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3768 case IWL_MVM_TM_CMD_SET_NOA:
3769 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3770 !vif->bss_conf.enable_beacon ||
3771 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3772 return -EINVAL;
3773
3774 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3775 if (noa_duration >= vif->bss_conf.beacon_int)
3776 return -EINVAL;
3777
3778 mvm->noa_duration = noa_duration;
3779 mvm->noa_vif = vif;
3780
7754ae79 3781 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3782 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3783 /* must be associated client vif - ignore authorized */
3784 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3785 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3786 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3787 return -EINVAL;
3788
3789 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3790 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3791 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3792 }
3793
3794 return -EOPNOTSUPP;
3795}
3796
3797static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3798 struct ieee80211_vif *vif,
3799 void *data, int len)
3800{
3801 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3802 int err;
3803
3804 mutex_lock(&mvm->mutex);
3805 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3806 mutex_unlock(&mvm->mutex);
3807
3808 return err;
3809}
3810#endif
3811
622e3f9b
LC		 3812static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3813 struct ieee80211_vif *vif,
3814 struct ieee80211_channel_switch *chsw)
3815{
3816 /* By implementing this operation, we prevent mac80211 from
3817 * starting its own channel switch timer, so that we can call
3818 * ieee80211_chswitch_done() ourselves at the right time
3819 * (which is when the absence time event starts).
3820 */
3821
3822 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3823 "dummy channel switch op\n");
3824}
3825
f028905c
LC		 3826static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3827 struct ieee80211_vif *vif,
3828 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3829{
3830 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3831 struct ieee80211_vif *csa_vif;
f6c34820 3832 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3833 u32 apply_time;
f028905c 3834 int ret;
bd3398e2
AO		 3835
3836 mutex_lock(&mvm->mutex);
664322fa 3837
81d62d5a
JB		 3838 mvmvif->csa_failed = false;
3839
6b20d774 3840 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3841 chsw->chandef.center_freq1);
6b20d774 3842
7174beb6
JB		 3843 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3844 ieee80211_vif_to_wdev(vif),
3845 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3846
6b20d774
LC		 3847 switch (vif->type) {
3848 case NL80211_IFTYPE_AP:
3849 csa_vif =
3850 rcu_dereference_protected(mvm->csa_vif,
3851 lockdep_is_held(&mvm->mutex));
3852 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3853 "Another CSA is already in progress")) {
3854 ret = -EBUSY;
3855 goto out_unlock;
3856 }
3857
d3a108a4
AO		 3858 /* we still didn't unblock tx. prevent new CS meanwhile */
3859 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3860 lockdep_is_held(&mvm->mutex))) {
3861 ret = -EBUSY;
3862 goto out_unlock;
3863 }
3864
6b20d774 3865 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3866
7ef0aab6
AO		 3867 if (WARN_ONCE(mvmvif->csa_countdown,
3868 "Previous CSA countdown didn't complete")) {
3869 ret = -EBUSY;
3870 goto out_unlock;
3871 }
3872
d3a108a4
AO		 3873 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3874
6b20d774 3875 break;
dc88b4ba 3876 case NL80211_IFTYPE_STATION:
4500e133
LC		 3877 /* Schedule the time event to a bit before beacon 1,
3878 * to make sure we're in the new channel when the
f5d8f50f
IP		 3879 * GO/AP arrives. In case count <= 1 immediately schedule the
3880 * TE (this might result with some packet loss or connection
3881 * loss).
4500e133 3882 */
f5d8f50f
IP		 3883 if (chsw->count <= 1)
3884 apply_time = 0;
3885 else
3886 apply_time = chsw->device_timestamp +
3887 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3888 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3889
3890 if (chsw->block_tx)
3891 iwl_mvm_csa_client_absent(mvm, vif);
3892
4500e133 3893 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3894 apply_time);
c6e0a3e0
LC		 3895 if (mvmvif->bf_data.bf_enabled) {
3896 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3897 if (ret)
3898 goto out_unlock;
3899 }
3900
dc88b4ba 3901 break;
6b20d774
LC		 3902 default:
3903 break;
3904 }
bd3398e2 3905
f6c34820
LC		 3906 mvmvif->ps_disabled = true;
3907
3908 ret = iwl_mvm_power_update_ps(mvm);
3909 if (ret)
3910 goto out_unlock;
f028905c 3911
e198f5e7
AN		 3912 /* we won't be on this channel any longer */
3913 iwl_mvm_teardown_tdls_peers(mvm);
3914
bd3398e2
AO		 3915out_unlock:
3916 mutex_unlock(&mvm->mutex);
f028905c
LC		 3917
3918 return ret;
bd3398e2
AO		 3919}
3920
f6c34820
LC		 3921static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3922 struct ieee80211_vif *vif)
3923{
3924 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3926 int ret;
3927
3928 mutex_lock(&mvm->mutex);
3929
81d62d5a
JB		 3930 if (mvmvif->csa_failed) {
3931 mvmvif->csa_failed = false;
3932 ret = -EIO;
3933 goto out_unlock;
3934 }
3935
a57c688d
LC		 3936 if (vif->type == NL80211_IFTYPE_STATION) {
3937 struct iwl_mvm_sta *mvmsta;
3938
3939 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3940 mvmvif->ap_sta_id);
3941
3942 if (WARN_ON(!mvmsta)) {
3943 ret = -EIO;
3944 goto out_unlock;
3945 }
3946
3947 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3948
3949 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3950
3951 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3952 if (ret)
3953 goto out_unlock;
686e7fe1
LC		 3954
3955 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3956 }
3957
f6c34820
LC		 3958 mvmvif->ps_disabled = false;
3959
3960 ret = iwl_mvm_power_update_ps(mvm);
3961
a57c688d 3962out_unlock:
f6c34820
LC		 3963 mutex_unlock(&mvm->mutex);
3964
3965 return ret;
3966}
3967
c5b0e7c0
EG		 3968static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3969 struct ieee80211_vif *vif, u32 queues, bool drop)
3970{
3971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3972 struct iwl_mvm_vif *mvmvif;
3973 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3974 struct ieee80211_sta *sta;
3975 int i;
3976 u32 msk = 0;
c5b0e7c0
EG		 3977
3978 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3979 return;
3980
24afba76 3981 /* Make sure we're done with the deferred traffic before flushing */
c8f54701 3982 flush_work(&mvm->add_stream_wk);
24afba76 3983
c5b0e7c0
EG		 3984 mutex_lock(&mvm->mutex);
3985 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3986
a0f6bf2a 3987 /* flush the AP-station and all TDLS peers */
0ae98812 3988 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN		 3989 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3990 lockdep_is_held(&mvm->mutex));
3991 if (IS_ERR_OR_NULL(sta))
3992 continue;
3993
3994 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3995 if (mvmsta->vif != vif)
3996 continue;
3997
3998 /* make sure only TDLS peers or the AP are flushed */
3999 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4000
d49394a1
SS		 4001 if (drop) {
4002 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4003 IWL_ERR(mvm, "flush request fail\n");
4004 } else {
4005 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS		 4006 if (iwl_mvm_has_new_tx_api(mvm))
4007 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4008 }
480acbce 4009 }
c5b0e7c0 4010
d49394a1 4011 mutex_unlock(&mvm->mutex);
4e6c48e0 4012
d49394a1
SS		 4013 /* this can take a while, and we may need/want other operations
4014 * to succeed while doing this, so do it without the mutex held
4015 */
d6d517b7 4016 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4017 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG		 4018}
4019
91a8bcde
JB		 4020static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4021 struct survey_info *survey)
4022{
4023 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4024 int ret;
4025
4026 memset(survey, 0, sizeof(*survey));
4027
4028 /* only support global statistics right now */
4029 if (idx != 0)
4030 return -ENOENT;
4031
280a3efa
JB		 4032 if (!fw_has_capa(&mvm->fw->ucode_capa,
4033 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 4034 return -ENOENT;
4035
4036 mutex_lock(&mvm->mutex);
4037
aab6930d 4038 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4039 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4040 if (ret)
4041 goto out;
4042 }
4043
4044 survey->filled = SURVEY_INFO_TIME |
4045 SURVEY_INFO_TIME_RX |
4046 SURVEY_INFO_TIME_TX |
4047 SURVEY_INFO_TIME_SCAN;
4048 survey->time = mvm->accu_radio_stats.on_time_rf +
4049 mvm->radio_stats.on_time_rf;
4050 do_div(survey->time, USEC_PER_MSEC);
4051
4052 survey->time_rx = mvm->accu_radio_stats.rx_time +
4053 mvm->radio_stats.rx_time;
4054 do_div(survey->time_rx, USEC_PER_MSEC);
4055
4056 survey->time_tx = mvm->accu_radio_stats.tx_time +
4057 mvm->radio_stats.tx_time;
4058 do_div(survey->time_tx, USEC_PER_MSEC);
4059
4060 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4061 mvm->radio_stats.on_time_scan;
4062 do_div(survey->time_scan, USEC_PER_MSEC);
4063
10a7c028 4064 ret = 0;
91a8bcde
JB		 4065 out:
4066 mutex_unlock(&mvm->mutex);
4067 return ret;
4068}
4069
33cef925
JB		 4070static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4071 struct ieee80211_vif *vif,
4072 struct ieee80211_sta *sta,
4073 struct station_info *sinfo)
4074{
4075 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4076 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4077 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4078
988b5968
SS		 4079 if (mvmsta->avg_energy) {
4080 sinfo->signal_avg = mvmsta->avg_energy;
4081 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4082 }
4083
280a3efa
JB		 4084 if (!fw_has_capa(&mvm->fw->ucode_capa,
4085 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4086 return;
4087
4088 /* if beacon filtering isn't on mac80211 does it anyway */
4089 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4090 return;
4091
4092 if (!vif->bss_conf.assoc)
4093 return;
4094
4095 mutex_lock(&mvm->mutex);
4096
4097 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4098 goto unlock;
4099
4100 if (iwl_mvm_request_statistics(mvm, false))
4101 goto unlock;
4102
4103 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4104 mvmvif->beacon_stats.accu_num_beacons;
4105 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4106 if (mvmvif->beacon_stats.avg_signal) {
4107 /* firmware only reports a value after RXing a few beacons */
4108 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4109 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4110 }
4111 unlock:
4112 mutex_unlock(&mvm->mutex);
4113}
4114
4203263d
EG		 4115static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4116 struct ieee80211_vif *vif,
4117 const struct ieee80211_event *event)
d42f5350 4118{
7174beb6
JB		 4119#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4120 do { \
4121 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4122 break; \
4123 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG		 4124 } while (0)
4125
d42f5350
EG		 4126 struct iwl_fw_dbg_trigger_tlv *trig;
4127 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4128
4129 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4130 return;
4131
d42f5350
EG		 4132 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4133 trig_mlme = (void *)trig->data;
7174beb6
JB		 4134 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4135 ieee80211_vif_to_wdev(vif), trig))
d42f5350
EG		 4136 return;
4137
d42f5350
EG		 4138 if (event->u.mlme.data == ASSOC_EVENT) {
4139 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4140 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG		 4141 "DENIED ASSOC: reason %d",
4142 event->u.mlme.reason);
4143 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4144 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG		 4145 "ASSOC TIMEOUT");
4146 } else if (event->u.mlme.data == AUTH_EVENT) {
4147 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4148 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG		 4149 "DENIED AUTH: reason %d",
4150 event->u.mlme.reason);
4151 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4152 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG		 4153 "AUTH TIMEOUT");
4154 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4155 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG		 4156 "DEAUTH RX %d", event->u.mlme.reason);
4157 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4158 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG		 4159 "DEAUTH TX %d", event->u.mlme.reason);
4160 }
4161#undef CHECK_MLME_TRIGGER
4162}
4163
4203263d
EG		 4164static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4165 struct ieee80211_vif *vif,
4166 const struct ieee80211_event *event)
4167{
4168 struct iwl_fw_dbg_trigger_tlv *trig;
4169 struct iwl_fw_dbg_trigger_ba *ba_trig;
4170
4171 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4172 return;
4173
4174 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4175 ba_trig = (void *)trig->data;
7174beb6
JB		 4176 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4177 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4178 return;
4179
4180 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4181 return;
4182
7174beb6
JB		 4183 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4184 "BAR received from %pM, tid %d, ssn %d",
4185 event->u.ba.sta->addr, event->u.ba.tid,
4186 event->u.ba.ssn);
4203263d
EG		 4187}
4188
4189static void
4190iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4191 struct ieee80211_vif *vif,
4192 const struct ieee80211_event *event)
4193{
4194 struct iwl_fw_dbg_trigger_tlv *trig;
4195 struct iwl_fw_dbg_trigger_ba *ba_trig;
4196
4197 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4198 return;
4199
4200 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4201 ba_trig = (void *)trig->data;
7174beb6
JB		 4202 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4203 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4204 return;
4205
4206 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4207 return;
4208
7174beb6
JB		 4209 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4210 "Frame from %pM timed out, tid %d",
4211 event->u.ba.sta->addr, event->u.ba.tid);
4203263d
EG		 4212}
4213
4214static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4215 struct ieee80211_vif *vif,
4216 const struct ieee80211_event *event)
4217{
4218 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4219
4220 switch (event->type) {
4221 case MLME_EVENT:
4222 iwl_mvm_event_mlme_callback(mvm, vif, event);
4223 break;
4224 case BAR_RX_EVENT:
4225 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4226 break;
4227 case BA_FRAME_TIMEOUT:
4228 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4229 break;
4230 default:
4231 break;
4232 }
4233}
4234
d0ff5d22
SS		 4235void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4236 struct iwl_mvm_internal_rxq_notif *notif,
4237 u32 size)
0636b938 4238{
0636b938
SS		 4239 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4240 int ret;
4241
4242 lockdep_assert_held(&mvm->mutex);
4243
bc029469 4244 /* TODO - remove a000 disablement when we have RXQ config API */
c8c017a6
JB		 4245 if (!iwl_mvm_has_new_rx_api(mvm) ||
4246 mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000)
0636b938
SS		 4247 return;
4248
d0ff5d22
SS		 4249 notif->cookie = mvm->queue_sync_cookie;
4250
4251 if (notif->sync)
4252 atomic_set(&mvm->queue_sync_counter,
4253 mvm->trans->num_rx_queues);
0636b938 4254
d0ff5d22 4255 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4256 if (ret) {
4257 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4258 goto out;
4259 }
d0ff5d22 4260
6ad04359 4261 if (notif->sync) {
3a732c65 4262 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB		 4263 atomic_read(&mvm->queue_sync_counter) == 0 ||
4264 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4265 HZ);
6ad04359
JB		 4266 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4267 }
0636b938
SS		 4268
4269out:
4270 atomic_set(&mvm->queue_sync_counter, 0);
4271 mvm->queue_sync_cookie++;
4272}
4273
4274static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4275{
4276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4277 struct iwl_mvm_internal_rxq_notif data = {
4278 .type = IWL_MVM_RXQ_EMPTY,
4279 .sync = 1,
4280 };
0636b938
SS		 4281
4282 mutex_lock(&mvm->mutex);
d0ff5d22 4283 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4284 mutex_unlock(&mvm->mutex);
4285}
4286
e5209263 4287const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4288 .tx = iwl_mvm_mac_tx,
4289 .ampdu_action = iwl_mvm_mac_ampdu_action,
4290 .start = iwl_mvm_mac_start,
cf2c92d8 4291 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4292 .stop = iwl_mvm_mac_stop,
4293 .add_interface = iwl_mvm_mac_add_interface,
4294 .remove_interface = iwl_mvm_mac_remove_interface,
4295 .config = iwl_mvm_mac_config,
e59647ea 4296 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4297 .configure_filter = iwl_mvm_configure_filter,
effd1929 4298 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4299 .bss_info_changed = iwl_mvm_bss_info_changed,
4300 .hw_scan = iwl_mvm_mac_hw_scan,
4301 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4302 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4303 .sta_state = iwl_mvm_mac_sta_state,
4304 .sta_notify = iwl_mvm_mac_sta_notify,
4305 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4306 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4307 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4308 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4309 .conf_tx = iwl_mvm_mac_conf_tx,
4310 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4311 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4312 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4313 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4314 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4315 .set_key = iwl_mvm_mac_set_key,
4316 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4317 .remain_on_channel = iwl_mvm_roc,
4318 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4319 .add_chanctx = iwl_mvm_add_chanctx,
4320 .remove_chanctx = iwl_mvm_remove_chanctx,
4321 .change_chanctx = iwl_mvm_change_chanctx,
4322 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4323 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4324 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4325
5023d966
JB		 4326 .start_ap = iwl_mvm_start_ap_ibss,
4327 .stop_ap = iwl_mvm_stop_ap_ibss,
4328 .join_ibss = iwl_mvm_start_ap_ibss,
4329 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4330
2f0282db
JB		 4331 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4332
8ca151b5
JB		 4333 .set_tim = iwl_mvm_set_tim,
4334
622e3f9b 4335 .channel_switch = iwl_mvm_channel_switch,
f028905c 4336 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4337 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4338
1d3c3f63
AN		 4339 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4340 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4341 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4342
d42f5350
EG		 4343 .event_callback = iwl_mvm_mac_event_callback,
4344
0636b938
SS		 4345 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4346
507cadf2
DS		 4347 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4348
8ca151b5
JB		 4349#ifdef CONFIG_PM_SLEEP
4350 /* look at d3.c */
4351 .suspend = iwl_mvm_suspend,
4352 .resume = iwl_mvm_resume,
4353 .set_wakeup = iwl_mvm_set_wakeup,
4354 .set_rekey_data = iwl_mvm_set_rekey_data,
4355#if IS_ENABLED(CONFIG_IPV6)
4356 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4357#endif
4358 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4359#endif
91a8bcde 4360 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4361 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4362};
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