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iwlwifi: pcie: rename iwl_trans_check_hw_rf_kill() to pcie
[linux-block.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
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8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
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);
65e25482
JB		 448 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_STA_PM_NOTIF))
449 ieee80211_hw_set(hw, AP_LINK_PS);
8ca151b5 450
80938abc
JB		 451 if (mvm->trans->num_rx_queues > 1)
452 ieee80211_hw_set(hw, USES_RSS);
453
2d7cf549
JB		 454 if (mvm->trans->max_skb_frags)
455 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
456
cf961e16
LK		 457 if (!iwl_mvm_is_dqa_supported(mvm))
458 hw->queues = mvm->first_agg_queue;
459 else
460 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 461 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 462 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
463 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 464 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
465 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB		 466
467 hw->radiotap_timestamp.units_pos =
468 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
469 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
470 /* this is the case for CCK frames, it's better (only 8) for OFDM */
471 hw->radiotap_timestamp.accuracy = 22;
472
8ca151b5 473 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 474 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
475 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 476
8e160ab8 477 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 478 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
479 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
480 hw->wiphy->cipher_suites = mvm->ciphers;
481
2a53d166
AB		 482 if (iwl_mvm_has_new_rx_api(mvm)) {
483 mvm->ciphers[hw->wiphy->n_cipher_suites] =
484 WLAN_CIPHER_SUITE_GCMP;
485 hw->wiphy->n_cipher_suites++;
486 mvm->ciphers[hw->wiphy->n_cipher_suites] =
487 WLAN_CIPHER_SUITE_GCMP_256;
488 hw->wiphy->n_cipher_suites++;
489 }
490
4b87e5af
LC		 491 /* Enable 11w if software crypto is not enabled (as the
492 * firmware will interpret some mgmt packets, so enabling it
493 * with software crypto isn't safe).
8ca151b5 494 */
3b37f4c9 495 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 496 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 497 mvm->ciphers[hw->wiphy->n_cipher_suites] =
498 WLAN_CIPHER_SUITE_AES_CMAC;
499 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 500 if (iwl_mvm_has_new_rx_api(mvm)) {
501 mvm->ciphers[hw->wiphy->n_cipher_suites] =
502 WLAN_CIPHER_SUITE_BIP_GMAC_128;
503 hw->wiphy->n_cipher_suites++;
504 mvm->ciphers[hw->wiphy->n_cipher_suites] =
505 WLAN_CIPHER_SUITE_BIP_GMAC_256;
506 hw->wiphy->n_cipher_suites++;
507 }
5f4c02e2
JB		 508 }
509
510 /* currently FW API supports only one optional cipher scheme */
511 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 512 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
513 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
514
5f4c02e2 515 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 516
517 cs->cipher = le32_to_cpu(fwcs->cipher);
518 cs->iftype = BIT(NL80211_IFTYPE_STATION);
519 cs->hdr_len = fwcs->hdr_len;
520 cs->pn_len = fwcs->pn_len;
521 cs->pn_off = fwcs->pn_off;
522 cs->key_idx_off = fwcs->key_idx_off;
523 cs->key_idx_mask = fwcs->key_idx_mask;
524 cs->key_idx_shift = fwcs->key_idx_shift;
525 cs->mic_len = fwcs->mic_len;
526
527 mvm->hw->cipher_schemes = mvm->cs;
528 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 529 hw->wiphy->n_cipher_suites++;
530 }
8ca151b5 531
30686bf7 532 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 533 hw->wiphy->features |=
534 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 535 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
536 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 537
8ca151b5
JB		 538 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
539 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 540 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 541
542 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 543 BIT(NL80211_IFTYPE_P2P_CLIENT) |
544 BIT(NL80211_IFTYPE_AP) |
545 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 546 BIT(NL80211_IFTYPE_P2P_DEVICE) |
547 BIT(NL80211_IFTYPE_ADHOC);
5023d966 548
a2f73b6c 549 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 550 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
551 if (iwl_mvm_is_lar_supported(mvm))
552 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
553 else
554 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
555 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 556
4b87e5af 557 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 558 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 559
8ca151b5
JB		 560 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
561 hw->wiphy->n_iface_combinations =
562 ARRAY_SIZE(iwl_mvm_iface_combinations);
563
c451e6d4 564 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 565 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 566 /* we can compensate an offset of up to 3 channels = 15 MHz */
567 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 568
569 /* Extract MAC address */
570 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
571 hw->wiphy->addresses = mvm->addresses;
572 hw->wiphy->n_addresses = 1;
831e85f3
IP		 573
574 /* Extract additional MAC addresses if available */
575 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
576 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
577
578 for (i = 1; i < num_mac; i++) {
579 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 580 ETH_ALEN);
831e85f3 581 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 582 hw->wiphy->n_addresses++;
583 }
584
fe0f2de3
IP		 585 iwl_mvm_reset_phy_ctxts(mvm);
586
999d2568 587 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 588
8ca151b5
JB		 589 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
590
c7d42480 591 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 592 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
593 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
594
859d914c 595 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 596 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
597 else
598 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
599
57fbcce3
JB		 600 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
601 hw->wiphy->bands[NL80211_BAND_2GHZ] =
602 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
603 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
604 hw->wiphy->bands[NL80211_BAND_5GHZ] =
605 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 606
859d914c
JB		 607 if (fw_has_capa(&mvm->fw->ucode_capa,
608 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
609 fw_has_api(&mvm->fw->ucode_capa,
610 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 611 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 612 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
613 }
614
8ca151b5
JB		 615 hw->wiphy->hw_version = mvm->trans->hw_id;
616
ade50652 617 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 618 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
619 else
620 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
621
ca986ad9 622 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG		 623 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
624 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
625 /* we create the 802.11 header and zero length SSID IE. */
626 hw->wiphy->max_sched_scan_ie_len =
627 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 628 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
629 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
630
631 /*
632 * the firmware uses u8 for num of iterations, but 0xff is saved for
633 * infinite loop, so the maximum number of iterations is actually 254.
634 */
635 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 636
8ca151b5 637 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 638 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 639 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 640 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 641 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 642 NL80211_FEATURE_STATIC_SMPS |
643 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 644
859d914c
JB		 645 if (fw_has_capa(&mvm->fw->ucode_capa,
646 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 647 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 648 if (fw_has_capa(&mvm->fw->ucode_capa,
649 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 650 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 651
859d914c
JB		 652 if (fw_has_capa(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 654 hw->wiphy->features |=
655 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
656
859d914c
JB		 657 if (fw_has_capa(&mvm->fw->ucode_capa,
658 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 659 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
660
aacf8f18
AS		 661 if (fw_has_api(&mvm->fw->ucode_capa,
662 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
663 wiphy_ext_feature_set(hw->wiphy,
664 NL80211_EXT_FEATURE_SCAN_START_TIME);
665 wiphy_ext_feature_set(hw->wiphy,
666 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
667 wiphy_ext_feature_set(hw->wiphy,
668 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
669 }
670
8ca151b5
JB		 671 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
672
673#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 674 if (iwl_mvm_is_d0i3_supported(mvm) &&
675 device_can_wakeup(mvm->trans->dev)) {
676 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
677 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 678 }
679
eef187a7 680 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB		 681 mvm->trans->ops->d3_suspend &&
682 mvm->trans->ops->d3_resume &&
683 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 684 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
685 WIPHY_WOWLAN_DISCONNECT |
686 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
687 WIPHY_WOWLAN_RFKILL_RELEASE |
688 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 689 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB		 690 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
691 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
692 WIPHY_WOWLAN_4WAY_HANDSHAKE;
693
694 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
695 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
696 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 697 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 698 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
699 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 700 }
701#endif
702
77736923
EP		 703#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
704 /* assign default bcast filtering configuration */
705 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
706#endif
707
8ca151b5
JB		 708 ret = iwl_mvm_leds_init(mvm);
709 if (ret)
710 return ret;
711
859d914c
JB		 712 if (fw_has_capa(&mvm->fw->ucode_capa,
713 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 714 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
715 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 716 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 717 }
718
859d914c
JB		 719 if (fw_has_capa(&mvm->fw->ucode_capa,
720 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 721 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
722 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
723 }
724
93190fb0 725 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 726 if (!iwl_mvm_is_csum_supported(mvm)) {
727 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
728 NETIF_F_RXCSUM);
729 /* We may support SW TX CSUM */
730 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
731 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
732 }
41837ca9 733
b7327d89
EG		 734 ret = ieee80211_register_hw(mvm->hw);
735 if (ret)
736 iwl_mvm_leds_exit(mvm);
de8ba41b 737 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 738
91b08c2d
AE		 739 if (mvm->cfg->vht_mu_mimo_supported)
740 wiphy_ext_feature_set(hw->wiphy,
741 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
742
b7327d89 743 return ret;
8ca151b5
JB		 744}
745
b2492501
AN		 746static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
747 struct ieee80211_sta *sta,
748 struct sk_buff *skb)
749{
750 struct iwl_mvm_sta *mvmsta;
751 bool defer = false;
752
753 /*
754 * double check the IN_D0I3 flag both before and after
755 * taking the spinlock, in order to prevent taking
756 * the spinlock when not needed.
757 */
758 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
759 return false;
760
761 spin_lock(&mvm->d0i3_tx_lock);
762 /*
763 * testing the flag again ensures the skb dequeue
764 * loop (on d0i3 exit) hasn't run yet.
765 */
766 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
767 goto out;
768
769 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 770 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN		 771 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
772 goto out;
773
774 __skb_queue_tail(&mvm->d0i3_tx, skb);
775 ieee80211_stop_queues(mvm->hw);
776
777 /* trigger wakeup */
778 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
779 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
780
781 defer = true;
782out:
783 spin_unlock(&mvm->d0i3_tx_lock);
784 return defer;
785}
786
8ca151b5
JB		 787static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
788 struct ieee80211_tx_control *control,
789 struct sk_buff *skb)
790{
791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 792 struct ieee80211_sta *sta = control->sta;
793 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
794 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 795
9ee718aa
EL		 796 if (iwl_mvm_is_radio_killed(mvm)) {
797 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 798 goto drop;
799 }
800
398e8c6c 801 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 802 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
803 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 804 goto drop;
805
3e56eadf
JB		 806 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
807 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
808 ieee80211_is_mgmt(hdr->frame_control) &&
809 !ieee80211_is_deauth(hdr->frame_control) &&
810 !ieee80211_is_disassoc(hdr->frame_control) &&
811 !ieee80211_is_action(hdr->frame_control)))
812 sta = NULL;
813
814 if (sta) {
b2492501
AN		 815 if (iwl_mvm_defer_tx(mvm, sta, skb))
816 return;
3e56eadf 817 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 818 goto drop;
819 return;
820 }
821
822 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
823 goto drop;
824 return;
825 drop:
826 ieee80211_free_txskb(hw, skb);
827}
828
205e2210
EG		 829static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
830{
831 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
832 return false;
833 return true;
834}
835
836static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
837{
838 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
839 return false;
840 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
841 return true;
842
843 /* enabled by default */
844 return true;
845}
846
7174beb6
JB		 847#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
848 do { \
849 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
850 break; \
851 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG		 852 } while (0)
853
854static void
855iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
856 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
857 enum ieee80211_ampdu_mlme_action action)
858{
859 struct iwl_fw_dbg_trigger_tlv *trig;
860 struct iwl_fw_dbg_trigger_ba *ba_trig;
861
862 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
863 return;
864
865 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
866 ba_trig = (void *)trig->data;
867
7174beb6
JB		 868 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
869 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 870 return;
871
872 switch (action) {
873 case IEEE80211_AMPDU_TX_OPERATIONAL: {
874 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
875 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
876
877 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
878 "TX AGG START: MAC %pM tid %d ssn %d\n",
879 sta->addr, tid, tid_data->ssn);
880 break;
881 }
882 case IEEE80211_AMPDU_TX_STOP_CONT:
883 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
884 "TX AGG STOP: MAC %pM tid %d\n",
885 sta->addr, tid);
886 break;
887 case IEEE80211_AMPDU_RX_START:
888 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
889 "RX AGG START: MAC %pM tid %d ssn %d\n",
890 sta->addr, tid, rx_ba_ssn);
891 break;
892 case IEEE80211_AMPDU_RX_STOP:
893 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
894 "RX AGG STOP: MAC %pM tid %d\n",
895 sta->addr, tid);
896 break;
897 default:
898 break;
899 }
900}
901
8ca151b5
JB		 902static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
903 struct ieee80211_vif *vif,
50ea05ef 904 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 905{
906 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
907 int ret;
b2492501 908 bool tx_agg_ref = false;
50ea05ef
SS		 909 struct ieee80211_sta *sta = params->sta;
910 enum ieee80211_ampdu_mlme_action action = params->action;
911 u16 tid = params->tid;
912 u16 *ssn = &params->ssn;
913 u8 buf_size = params->buf_size;
bb81bb68 914 bool amsdu = params->amsdu;
10b2b201 915 u16 timeout = params->timeout;
8ca151b5
JB		 916
917 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
918 sta->addr, tid, action);
919
920 if (!(mvm->nvm_data->sku_cap_11n_enable))
921 return -EACCES;
922
b2492501 923 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 924 switch (action) {
925 case IEEE80211_AMPDU_TX_START:
926 case IEEE80211_AMPDU_TX_STOP_CONT:
927 case IEEE80211_AMPDU_TX_STOP_FLUSH:
928 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
929 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 930 /*
9256c205
EP		 931 * for tx start, wait synchronously until D0i3 exit to
932 * get the correct sequence number for the tid.
933 * additionally, some other ampdu actions use direct
934 * target access, which is not handled automatically
935 * by the trans layer (unlike commands), so wait for
936 * d0i3 exit in these cases as well.
b2492501 937 */
d40fc489
GG		 938 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
939 if (ret)
940 return ret;
941
942 tx_agg_ref = true;
9256c205
EP		 943 break;
944 default:
945 break;
b2492501
AN		 946 }
947
8ca151b5
JB		 948 mutex_lock(&mvm->mutex);
949
950 switch (action) {
951 case IEEE80211_AMPDU_RX_START:
205e2210 952 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 953 ret = -EINVAL;
954 break;
955 }
10b2b201
SS		 956 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
957 timeout);
8ca151b5
JB		 958 break;
959 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 960 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
961 timeout);
8ca151b5
JB		 962 break;
963 case IEEE80211_AMPDU_TX_START:
205e2210 964 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 965 ret = -EINVAL;
966 break;
967 }
8ca151b5
JB		 968 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
969 break;
970 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 971 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
972 break;
8ca151b5
JB		 973 case IEEE80211_AMPDU_TX_STOP_FLUSH:
974 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 975 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 976 break;
977 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 978 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
979 buf_size, amsdu);
8ca151b5
JB		 980 break;
981 default:
982 WARN_ON_ONCE(1);
983 ret = -EINVAL;
984 break;
985 }
4203263d
EG		 986
987 if (!ret) {
988 u16 rx_ba_ssn = 0;
989
990 if (action == IEEE80211_AMPDU_RX_START)
991 rx_ba_ssn = *ssn;
992
993 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
994 rx_ba_ssn, action);
995 }
8ca151b5
JB		 996 mutex_unlock(&mvm->mutex);
997
b2492501
AN		 998 /*
999 * If the tid is marked as started, we won't use it for offloaded
1000 * traffic on the next D0i3 entry. It's safe to unref.
1001 */
1002 if (tx_agg_ref)
1003 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1004
8ca151b5
JB		 1005 return ret;
1006}
1007
1008static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1009 struct ieee80211_vif *vif)
1010{
1011 struct iwl_mvm *mvm = data;
1012 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1013
1014 mvmvif->uploaded = false;
0ae98812 1015 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1016
8ca151b5
JB		 1017 spin_lock_bh(&mvm->time_event_lock);
1018 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1019 spin_unlock_bh(&mvm->time_event_lock);
1020
fe0f2de3 1021 mvmvif->phy_ctxt = NULL;
8a275bad 1022 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1023}
1024
1025static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1026{
58629d9d
JB		 1027 /* clear the D3 reconfig, we only need it to avoid dumping a
1028 * firmware coredump on reconfiguration, we shouldn't do that
1029 * on D3->D0 transition
1030 */
b6eaa45a 1031 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB		 1032 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1033 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1034 }
1bd3cbc1 1035
744cb695
EP		 1036 /* cleanup all stale references (scan, roc), but keep the
1037 * ucode_down ref until reconfig is complete
1038 */
1039 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1040
fcb6b92a 1041 iwl_mvm_stop_device(mvm);
8ca151b5 1042
9af91f46 1043 mvm->scan_status = 0;
b1873300 1044 mvm->ps_disabled = false;
31b8b343 1045 mvm->calibrating = false;
8ca151b5
JB		 1046
1047 /* just in case one was running */
305d236e 1048 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1049 ieee80211_remain_on_channel_expired(mvm->hw);
1050
737719fe
AN		 1051 /*
1052 * cleanup all interfaces, even inactive ones, as some might have
1053 * gone down during the HW restart
1054 */
1055 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1056
fe0f2de3 1057 mvm->p2p_device_vif = NULL;
0ae98812 1058 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP		 1059
1060 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1061 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
8ca151b5 1062 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
24afba76 1063 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
a0f6bf2a 1064 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad 1065 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1066 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1067
1068 ieee80211_wake_queues(mvm->hw);
1069
228670b2
EP		 1070 /* clear any stale d0i3 state */
1071 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1072
8ca151b5 1073 mvm->vif_count = 0;
113a0447 1074 mvm->rx_ba_sessions = 0;
7174beb6 1075 mvm->fwrt.dump.conf = FW_DBG_INVALID;
91a8bcde
JB		 1076
1077 /* keep statistics ticking */
1078 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1079}
1080
a0a09243 1081int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1082{
8ca151b5
JB		 1083 int ret;
1084
a0a09243 1085 lockdep_assert_held(&mvm->mutex);
8ca151b5 1086
a42b2af3
LC		 1087 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1088 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1089 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1090 } else {
1091 /* Hold the reference to prevent runtime suspend while
1092 * the start procedure runs. It's a bit confusing
1093 * that the UCODE_DOWN reference is taken, but it just
1094 * means "UCODE is not UP yet". ( TODO: rename this
1095 * reference).
1096 */
1097 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1098 }
8ca151b5 1099 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1100
1101 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1102 /* Something went wrong - we need to finish some cleanup
1103 * that normally iwl_mvm_mac_restart_complete() below
1104 * would do.
1105 */
1106 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1107 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1108 }
1109
a0a09243
LC		 1110 return ret;
1111}
1112
1113static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1114{
1115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1116 int ret;
1117
37948fcf
EP		 1118 /* Some hw restart cleanups must not hold the mutex */
1119 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1120 /*
1121 * Make sure we are out of d0i3. This is needed
1122 * to make sure the reference accounting is correct
1123 * (and there is no stale d0i3_exit_work).
1124 */
1125 wait_event_timeout(mvm->d0i3_exit_waitq,
1126 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1127 &mvm->status),
1128 HZ);
1129 }
1130
a0a09243
LC		 1131 mutex_lock(&mvm->mutex);
1132 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1133 mutex_unlock(&mvm->mutex);
1134
1135 return ret;
1136}
1137
cf2c92d8 1138static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1139{
8ca151b5
JB		 1140 int ret;
1141
1142 mutex_lock(&mvm->mutex);
1143
1144 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1145 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1146 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1147 if (ret)
1148 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1149 ret);
1150
7498cf4c
EP		 1151 /* allow transport/FW low power modes */
1152 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1153
cbd2ae2d
AN		 1154 /*
1155 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1156 * of packets the FW sent out, so we must reconnect.
1157 */
1158 iwl_mvm_teardown_tdls_peers(mvm);
1159
8ca151b5
JB		 1160 mutex_unlock(&mvm->mutex);
1161}
1162
088070a2
EP		 1163static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1164{
b7282643
LC		 1165 if (iwl_mvm_is_d0i3_supported(mvm) &&
1166 iwl_mvm_enter_d0i3_on_suspend(mvm))
1167 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1168 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1169 &mvm->status),
1170 HZ),
1171 "D0i3 exit on resume timed out\n");
088070a2
EP		 1172}
1173
cf2c92d8
EP		 1174static void
1175iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1176 enum ieee80211_reconfig_type reconfig_type)
1177{
1178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1179
1180 switch (reconfig_type) {
1181 case IEEE80211_RECONFIG_TYPE_RESTART:
1182 iwl_mvm_restart_complete(mvm);
1183 break;
1184 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1185 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1186 break;
1187 }
1188}
1189
a0a09243 1190void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1191{
a0a09243 1192 lockdep_assert_held(&mvm->mutex);
7498cf4c 1193
91a8bcde
JB		 1194 /* firmware counters are obviously reset now, but we shouldn't
1195 * partially track so also clear the fw_reset_accu counters.
1196 */
1197 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1198
8ca151b5
JB		 1199 /* async_handlers_wk is now blocked */
1200
1201 /*
1202 * The work item could be running or queued if the
1203 * ROC time event stops just as we get here.
1204 */
c779273b 1205 flush_work(&mvm->roc_done_wk);
8ca151b5 1206
fcb6b92a 1207 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1208
1209 iwl_mvm_async_handlers_purge(mvm);
1210 /* async_handlers_list is empty and will stay empty: HW is stopped */
1211
1212 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1213 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1214
0a79a0c0
EP		 1215 /*
1216 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1217 * won't be called in this case).
8b2b9fbf
AN		 1218 * But make sure to cleanup interfaces that have gone down before/during
1219 * HW restart was requested.
0a79a0c0 1220 */
8b2b9fbf
AN		 1221 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1222 ieee80211_iterate_interfaces(mvm->hw, 0,
1223 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1224
963221be
AB		 1225 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1226 * make sure there's nothing left there and warn if any is found.
1227 */
859d914c 1228 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1229 int i;
1230
507e4cda 1231 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1232 if (WARN_ONCE(mvm->scan_uid_status[i],
1233 "UMAC scan UID %d status was not cleaned\n",
1234 i))
1235 mvm->scan_uid_status[i] = 0;
963221be
AB		 1236 }
1237 }
a0a09243 1238}
bc44886d 1239
a0a09243
LC		 1240static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1241{
1242 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1243
1244 flush_work(&mvm->d0i3_exit_work);
1245 flush_work(&mvm->async_handlers_wk);
24afba76 1246 flush_work(&mvm->add_stream_wk);
771147b0
JB		 1247
1248 /*
1249 * Lock and clear the firmware running bit here already, so that
1250 * new commands coming in elsewhere, e.g. from debugfs, will not
1251 * be able to proceed. This is important here because one of those
7174beb6 1252 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB		 1253 * don't stop debugfs accesses before canceling that it could be
1254 * retriggered after we flush it but before we've cleared the bit.
1255 */
1256 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1257
7174beb6 1258 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1259 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1260 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1261 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC		 1262
1263 mutex_lock(&mvm->mutex);
1264 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1265 mutex_unlock(&mvm->mutex);
1266
1267 /*
1268 * The worker might have been waiting for the mutex, let it run and
1269 * discover that its list is now empty.
1270 */
1271 cancel_work_sync(&mvm->async_handlers_wk);
1272}
1273
fe0f2de3
IP		 1274static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1275{
1276 u16 i;
1277
1278 lockdep_assert_held(&mvm->mutex);
1279
1280 for (i = 0; i < NUM_PHY_CTX; i++)
1281 if (!mvm->phy_ctxts[i].ref)
1282 return &mvm->phy_ctxts[i];
1283
1284 IWL_ERR(mvm, "No available PHY context\n");
1285 return NULL;
1286}
1287
d44c3fe6
AA		 1288static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1289 s16 tx_power)
1290{
1291 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1292 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1293 .v3.mac_context_id =
d44c3fe6 1294 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1295 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1296 };
da03f029 1297 int len = sizeof(cmd);
d44c3fe6 1298
d44c3fe6 1299 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1300 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1301
55bfa4b9
LC		 1302 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1303 len = sizeof(cmd.v3);
da03f029
JB		 1304
1305 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1306}
1307
8ca151b5
JB		 1308static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1309 struct ieee80211_vif *vif)
1310{
1311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1312 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1313 int ret;
1314
aa5e1832
EG		 1315 mvmvif->mvm = mvm;
1316
d40fc489
GG		 1317 /*
1318 * make sure D0i3 exit is completed, otherwise a target access
1319 * during tx queue configuration could be done when still in
1320 * D0i3 state.
1321 */
1322 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1323 if (ret)
1324 return ret;
1325
8ca151b5
JB		 1326 /*
1327 * Not much to do here. The stack will not allow interface
1328 * types or combinations that we didn't advertise, so we
1329 * don't really have to check the types.
1330 */
1331
1332 mutex_lock(&mvm->mutex);
1333
33cef925
JB		 1334 /* make sure that beacon statistics don't go backwards with FW reset */
1335 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1336 mvmvif->beacon_stats.accu_num_beacons +=
1337 mvmvif->beacon_stats.num_beacons;
1338
e89044d7 1339 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1340 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1341 if (ret)
1342 goto out_unlock;
1343
1c2abf72 1344 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1345 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1346 mvm->vif_count++;
ea183d02 1347
8ca151b5
JB		 1348 /*
1349 * The AP binding flow can be done only after the beacon
1350 * template is configured (which happens only in the mac80211
1351 * start_ap() flow), and adding the broadcast station can happen
1352 * only after the binding.
1353 * In addition, since modifying the MAC before adding a bcast
1354 * station is not allowed by the FW, delay the adding of MAC context to
1355 * the point where we can also add the bcast station.
1356 * In short: there's not much we can do at this point, other than
1357 * allocating resources :)
1358 */
5023d966
JB		 1359 if (vif->type == NL80211_IFTYPE_AP ||
1360 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1361 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1362 if (ret) {
1363 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1364 goto out_release;
1365 }
1366
26d6c16b
SS		 1367 if (iwl_mvm_is_dqa_supported(mvm)) {
1368 /*
1369 * Only queue for this station is the mcast queue,
1370 * which shouldn't be in TFD mask anyway
1371 */
1372 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
ced19f26
SS		 1373 0, vif->type,
1374 IWL_STA_MULTICAST);
26d6c16b
SS		 1375 if (ret)
1376 goto out_release;
1377 }
1378
77740cb4 1379 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1380 goto out_unlock;
1381 }
1382
93190fb0
AA		 1383 mvmvif->features |= hw->netdev_features;
1384
8ca151b5
JB		 1385 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1386 if (ret)
1387 goto out_release;
1388
999609f1 1389 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1390 if (ret)
fd66fc1c 1391 goto out_remove_mac;
8ca151b5 1392
7df15b1e 1393 /* beacon filtering */
a1022927 1394 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1395 if (ret)
1396 goto out_remove_mac;
1397
7df15b1e 1398 if (!mvm->bf_allowed_vif &&
73e5f2c5 1399 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1400 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1401 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1402 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1403 }
1404
8ca151b5
JB		 1405 /*
1406 * P2P_DEVICE interface does not have a channel context assigned to it,
1407 * so a dedicated PHY context is allocated to it and the corresponding
1408 * MAC context is bound to it at this stage.
1409 */
1410 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1411
fe0f2de3
IP		 1412 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1413 if (!mvmvif->phy_ctxt) {
1414 ret = -ENOSPC;
bd3351ba 1415 goto out_free_bf;
fe0f2de3 1416 }
8ca151b5 1417
53a9d61e 1418 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1419 ret = iwl_mvm_binding_add_vif(mvm, vif);
1420 if (ret)
53a9d61e 1421 goto out_unref_phy;
8ca151b5 1422
013290aa 1423 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1424 if (ret)
1425 goto out_unbind;
1426
1427 /* Save a pointer to p2p device vif, so it can later be used to
1428 * update the p2p device MAC when a GO is started/stopped */
1429 mvm->p2p_device_vif = vif;
1430 }
1431
63494374 1432 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1433 goto out_unlock;
1434
1435 out_unbind:
1436 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1437 out_unref_phy:
fe0f2de3 1438 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1439 out_free_bf:
1440 if (mvm->bf_allowed_vif == mvmvif) {
1441 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1442 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1443 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1444 }
8ca151b5
JB		 1445 out_remove_mac:
1446 mvmvif->phy_ctxt = NULL;
1447 iwl_mvm_mac_ctxt_remove(mvm, vif);
1448 out_release:
5ee2b215
AB		 1449 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1450 mvm->vif_count--;
1c2abf72 1451
8ca151b5
JB		 1452 iwl_mvm_mac_ctxt_release(mvm, vif);
1453 out_unlock:
1454 mutex_unlock(&mvm->mutex);
1455
d40fc489
GG		 1456 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1457
8ca151b5
JB		 1458 return ret;
1459}
1460
38a12b5b
JB		 1461static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1462 struct ieee80211_vif *vif)
8ca151b5 1463{
d92b732e 1464 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5 1465
d49394a1 1466 if (tfd_msk && !iwl_mvm_is_dqa_supported(mvm)) {
fe92e32a
EG		 1467 /*
1468 * mac80211 first removes all the stations of the vif and
1469 * then removes the vif. When it removes a station it also
1470 * flushes the AMPDU session. So by now, all the AMPDU sessions
1471 * of all the stations of this vif are closed, and the queues
1472 * of these AMPDU sessions are properly closed.
1473 * We still need to take care of the shared queues of the vif.
1474 * Flush them here.
d49394a1
SS		 1475 * For DQA mode there is no need - broacast and multicast queue
1476 * are flushed separately.
fe92e32a 1477 */
8ca151b5 1478 mutex_lock(&mvm->mutex);
5888a40c 1479 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1480 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1481
1482 /*
1483 * There are transports that buffer a few frames in the host.
1484 * For these, the flush above isn't enough since while we were
1485 * flushing, the transport might have sent more frames to the
1486 * device. To solve this, wait here until the transport is
1487 * empty. Technically, this could have replaced the flush
1488 * above, but flush is much faster than draining. So flush
1489 * first, and drain to make sure we have no frames in the
1490 * transport anymore.
1491 * If a station still had frames on the shared queues, it is
1492 * already marked as draining, so to complete the draining, we
1493 * just need to wait until the transport is empty.
1494 */
a1a57877 1495 iwl_trans_wait_tx_queues_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1496 }
1497
1498 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1499 /*
1500 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1501 * We assume here that all the packets sent to the OFFCHANNEL
1502 * queue are sent in ROC session.
1503 */
1504 flush_work(&mvm->roc_done_wk);
1505 } else {
1506 /*
1507 * By now, all the AC queues are empty. The AGG queues are
1508 * empty too. We already got all the Tx responses for all the
1509 * packets in the queues. The drain work can have been
0742a75a 1510 * triggered. Flush it.
8ca151b5
JB		 1511 */
1512 flush_work(&mvm->sta_drained_wk);
1513 }
38a12b5b
JB		 1514}
1515
1516static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1517 struct ieee80211_vif *vif)
1518{
1519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1520 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1521
1522 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1523
1524 mutex_lock(&mvm->mutex);
1525
7df15b1e
HG		 1526 if (mvm->bf_allowed_vif == mvmvif) {
1527 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1528 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1529 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1530 }
1531
63494374
JB		 1532 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1533
8ca151b5
JB		 1534 /*
1535 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1536 * interface is be handled as part of the stop_ap flow.
8ca151b5 1537 */
5023d966
JB		 1538 if (vif->type == NL80211_IFTYPE_AP ||
1539 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1540#ifdef CONFIG_NL80211_TESTMODE
1541 if (vif == mvm->noa_vif) {
1542 mvm->noa_vif = NULL;
1543 mvm->noa_duration = 0;
1544 }
1545#endif
26d6c16b 1546 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1547 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1548 goto out_release;
1549 }
1550
1551 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1552 mvm->p2p_device_vif = NULL;
013290aa 1553 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1554 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1555 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1556 mvmvif->phy_ctxt = NULL;
1557 }
1558
5ee2b215 1559 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1560 mvm->vif_count--;
1c2abf72 1561
999609f1 1562 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1563 iwl_mvm_mac_ctxt_remove(mvm, vif);
1564
1565out_release:
1566 iwl_mvm_mac_ctxt_release(mvm, vif);
1567 mutex_unlock(&mvm->mutex);
1568}
1569
1570static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1571{
8ca151b5
JB		 1572 return 0;
1573}
1574
e59647ea
EP		 1575struct iwl_mvm_mc_iter_data {
1576 struct iwl_mvm *mvm;
1577 int port_id;
1578};
1579
1580static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1581 struct ieee80211_vif *vif)
1582{
1583 struct iwl_mvm_mc_iter_data *data = _data;
1584 struct iwl_mvm *mvm = data->mvm;
1585 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1586 int ret, len;
1587
1588 /* if we don't have free ports, mcast frames will be dropped */
1589 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1590 return;
1591
1592 if (vif->type != NL80211_IFTYPE_STATION ||
1593 !vif->bss_conf.assoc)
1594 return;
1595
1596 cmd->port_id = data->port_id++;
1597 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1598 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1599
1c4abec0 1600 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1601 if (ret)
1602 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1603}
1604
1605static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1606{
1607 struct iwl_mvm_mc_iter_data iter_data = {
1608 .mvm = mvm,
88f2fd73
MG		 1609 };
1610
e59647ea
EP		 1611 lockdep_assert_held(&mvm->mutex);
1612
1613 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1614 return;
1615
1c4abec0 1616 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1617 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1618 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1619}
1620
e59647ea
EP		 1621static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1622 struct netdev_hw_addr_list *mc_list)
8ca151b5 1623{
e59647ea
EP		 1624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1625 struct iwl_mcast_filter_cmd *cmd;
1626 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1627 int addr_count;
1628 bool pass_all;
e59647ea
EP		 1629 int len;
1630
f3bd58f4
MS		 1631 addr_count = netdev_hw_addr_list_count(mc_list);
1632 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1633 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1634 if (pass_all)
e59647ea 1635 addr_count = 0;
e59647ea
EP		 1636
1637 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1638 cmd = kzalloc(len, GFP_ATOMIC);
1639 if (!cmd)
1640 return 0;
1641
1642 if (pass_all) {
1643 cmd->pass_all = 1;
1644 return (u64)(unsigned long)cmd;
1645 }
1646
1647 netdev_hw_addr_list_for_each(addr, mc_list) {
1648 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1649 cmd->count, addr->addr);
1650 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1651 addr->addr, ETH_ALEN);
1652 cmd->count++;
1653 }
1654
1655 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1656}
1657
1658static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1659 unsigned int changed_flags,
1660 unsigned int *total_flags,
1661 u64 multicast)
1662{
e59647ea
EP		 1663 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1664 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1665
e59647ea 1666 mutex_lock(&mvm->mutex);
51b6b9e0 1667
e59647ea
EP		 1668 /* replace previous configuration */
1669 kfree(mvm->mcast_filter_cmd);
1670 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1671
e59647ea
EP		 1672 if (!cmd)
1673 goto out;
51b6b9e0 1674
e59647ea
EP		 1675 iwl_mvm_recalc_multicast(mvm);
1676out:
1677 mutex_unlock(&mvm->mutex);
1678 *total_flags = 0;
51b6b9e0
EG		 1679}
1680
effd1929
AO		 1681static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1682 struct ieee80211_vif *vif,
1683 unsigned int filter_flags,
1684 unsigned int changed_flags)
1685{
1686 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1687
1688 /* We support only filter for probe requests */
1689 if (!(changed_flags & FIF_PROBE_REQ))
1690 return;
1691
1692 /* Supported only for p2p client interfaces */
1693 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1694 !vif->p2p)
1695 return;
1696
1697 mutex_lock(&mvm->mutex);
1698 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1699 mutex_unlock(&mvm->mutex);
1700}
1701
c87163b9
EP		 1702#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1703struct iwl_bcast_iter_data {
1704 struct iwl_mvm *mvm;
1705 struct iwl_bcast_filter_cmd *cmd;
1706 u8 current_filter;
1707};
1708
1709static void
1710iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1711 const struct iwl_fw_bcast_filter *in_filter,
1712 struct iwl_fw_bcast_filter *out_filter)
1713{
1714 struct iwl_fw_bcast_filter_attr *attr;
1715 int i;
1716
1717 memcpy(out_filter, in_filter, sizeof(*out_filter));
1718
1719 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1720 attr = &out_filter->attrs[i];
1721
1722 if (!attr->mask)
1723 break;
1724
2ee8f021
EP		 1725 switch (attr->reserved1) {
1726 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1727 if (vif->bss_conf.arp_addr_cnt != 1) {
1728 attr->mask = 0;
1729 continue;
1730 }
1731
1732 attr->val = vif->bss_conf.arp_addr_list[0];
1733 break;
1734 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1735 attr->val = *(__be32 *)&vif->addr[2];
1736 break;
1737 default:
1738 break;
1739 }
1740 attr->reserved1 = 0;
c87163b9
EP		 1741 out_filter->num_attrs++;
1742 }
1743}
1744
1745static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1746 struct ieee80211_vif *vif)
1747{
1748 struct iwl_bcast_iter_data *data = _data;
1749 struct iwl_mvm *mvm = data->mvm;
1750 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1751 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1752 struct iwl_fw_bcast_mac *bcast_mac;
1753 int i;
1754
1755 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1756 return;
1757
1758 bcast_mac = &cmd->macs[mvmvif->id];
1759
e48393e8
IP		 1760 /*
1761 * enable filtering only for associated stations, but not for P2P
1762 * Clients
1763 */
1764 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1765 !vif->bss_conf.assoc)
c87163b9
EP		 1766 return;
1767
1768 bcast_mac->default_discard = 1;
1769
1770 /* copy all configured filters */
1771 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1772 /*
1773 * Make sure we don't exceed our filters limit.
1774 * if there is still a valid filter to be configured,
1775 * be on the safe side and just allow bcast for this mac.
1776 */
1777 if (WARN_ON_ONCE(data->current_filter >=
1778 ARRAY_SIZE(cmd->filters))) {
1779 bcast_mac->default_discard = 0;
1780 bcast_mac->attached_filters = 0;
1781 break;
1782 }
1783
1784 iwl_mvm_set_bcast_filter(vif,
1785 &mvm->bcast_filters[i],
1786 &cmd->filters[data->current_filter]);
1787
1788 /* skip current filter if it contains no attributes */
1789 if (!cmd->filters[data->current_filter].num_attrs)
1790 continue;
1791
1792 /* attach the filter to current mac */
1793 bcast_mac->attached_filters |=
1794 cpu_to_le16(BIT(data->current_filter));
1795
1796 data->current_filter++;
1797 }
1798}
1799
de06a59e
EP		 1800bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1801 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1802{
c87163b9
EP		 1803 struct iwl_bcast_iter_data iter_data = {
1804 .mvm = mvm,
de06a59e 1805 .cmd = cmd,
c87163b9
EP		 1806 };
1807
3b8983b1
MS		 1808 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1809 return false;
1810
de06a59e
EP		 1811 memset(cmd, 0, sizeof(*cmd));
1812 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1813 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1814
1815#ifdef CONFIG_IWLWIFI_DEBUGFS
1816 /* use debugfs filters/macs if override is configured */
1817 if (mvm->dbgfs_bcast_filtering.override) {
1818 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1819 sizeof(cmd->filters));
1820 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1821 sizeof(cmd->macs));
1822 return true;
1823 }
1824#endif
c87163b9
EP		 1825
1826 /* if no filters are configured, do nothing */
1827 if (!mvm->bcast_filters)
de06a59e 1828 return false;
c87163b9
EP		 1829
1830 /* configure and attach these filters for each associated sta vif */
1831 ieee80211_iterate_active_interfaces(
1832 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1833 iwl_mvm_bcast_filter_iterator, &iter_data);
1834
de06a59e
EP		 1835 return true;
1836}
34672bb3
EP		 1837
1838static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1839{
1840 struct iwl_bcast_filter_cmd cmd;
1841
1842 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1843 return 0;
1844
1845 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1846 return 0;
1847
a1022927 1848 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1849 sizeof(cmd), &cmd);
1850}
1851#else
34672bb3 1852static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1853{
1854 return 0;
1855}
1856#endif
1857
a07a8f37
SS		 1858static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1859 struct ieee80211_vif *vif)
1860{
1861 struct iwl_mu_group_mgmt_cmd cmd = {};
1862
1863 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1864 WLAN_MEMBERSHIP_LEN);
1865 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1866 WLAN_USER_POSITION_LEN);
1867
1868 return iwl_mvm_send_cmd_pdu(mvm,
1869 WIDE_ID(DATA_PATH_GROUP,
1870 UPDATE_MU_GROUPS_CMD),
1871 0, sizeof(cmd), &cmd);
1872}
1873
f92659a1
SS		 1874static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1875 struct ieee80211_vif *vif)
1876{
1877 if (vif->mu_mimo_owner) {
1878 struct iwl_mu_group_mgmt_notif *notif = _data;
1879
1880 /*
1881 * MU-MIMO Group Id action frame is little endian. We treat
1882 * the data received from firmware as if it came from the
1883 * action frame, so no conversion is needed.
1884 */
1885 ieee80211_update_mu_groups(vif,
1886 (u8 *)&notif->membership_status,
1887 (u8 *)&notif->user_position);
1888 }
1889}
1890
1891void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1892 struct iwl_rx_cmd_buffer *rxb)
1893{
1894 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1895 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1896
1897 ieee80211_iterate_active_interfaces_atomic(
1898 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1899 iwl_mvm_mu_mimo_iface_iterator, notif);
1900}
1901
8ca151b5
JB		 1902static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1903 struct ieee80211_vif *vif,
1904 struct ieee80211_bss_conf *bss_conf,
1905 u32 changes)
1906{
1907 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1908 int ret;
1909
6e97b0d2
IP		 1910 /*
1911 * Re-calculate the tsf id, as the master-slave relations depend on the
1912 * beacon interval, which was not known when the station interface was
1913 * added.
1914 */
1915 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1916 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1917
03098268
AE		 1918 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1919 mvmvif->lqm_active)
1920 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1921 0, 0);
1922
3dfd3a97
JB		 1923 /*
1924 * If we're not associated yet, take the (new) BSSID before associating
1925 * so the firmware knows. If we're already associated, then use the old
1926 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1927 * branch for disassociation below.
1928 */
1929 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1930 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1931
1932 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1933 if (ret)
1934 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1935
3dfd3a97
JB		 1936 /* after sending it once, adopt mac80211 data */
1937 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1938 mvmvif->associated = bss_conf->assoc;
1939
8ca151b5
JB		 1940 if (changes & BSS_CHANGED_ASSOC) {
1941 if (bss_conf->assoc) {
33cef925
JB		 1942 /* clear statistics to get clean beacon counter */
1943 iwl_mvm_request_statistics(mvm, true);
1944 memset(&mvmvif->beacon_stats, 0,
1945 sizeof(mvmvif->beacon_stats));
1946
8ca151b5 1947 /* add quota for this interface */
7754ae79 1948 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1949 if (ret) {
1950 IWL_ERR(mvm, "failed to update quotas\n");
1951 return;
1952 }
016d27e1
JB		 1953
1954 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1955 &mvm->status)) {
1956 /*
1957 * If we're restarting then the firmware will
1958 * obviously have lost synchronisation with
1959 * the AP. It will attempt to synchronise by
1960 * itself, but we can make it more reliable by
1961 * scheduling a session protection time event.
1962 *
1963 * The firmware needs to receive a beacon to
1964 * catch up with synchronisation, use 110% of
1965 * the beacon interval.
1966 *
1967 * Set a large maximum delay to allow for more
1968 * than a single interface.
1969 */
1970 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1971 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1972 5 * dur, false);
016d27e1 1973 }
1f3b0ff8
LE		 1974
1975 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1976 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1977 if (vif->p2p) {
29a90a49 1978 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1979 iwl_mvm_update_smps(mvm, vif,
1980 IWL_MVM_SMPS_REQ_PROT,
1981 IEEE80211_SMPS_DYNAMIC);
1982 }
0ae98812 1983 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE		 1984 /*
1985 * If update fails - SF might be running in associated
1986 * mode while disassociated - which is forbidden.
1987 */
1988 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1989 "Failed to update SF upon disassociation\n");
1990
6b28f978
EG		 1991 /*
1992 * If we get an assert during the connection (after the
1993 * station has been added, but before the vif is set
1994 * to associated), mac80211 will re-add the station and
1995 * then configure the vif. Since the vif is not
1996 * associated, we would remove the station here and
1997 * this would fail the recovery.
1998 */
1999 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2000 &mvm->status)) {
2001 /*
2002 * Remove AP station now that
2003 * the MAC is unassoc
2004 */
2005 ret = iwl_mvm_rm_sta_id(mvm, vif,
2006 mvmvif->ap_sta_id);
2007 if (ret)
2008 IWL_ERR(mvm,
2009 "failed to remove AP station\n");
2010
2011 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2012 mvm->d0i3_ap_sta_id =
2013 IWL_MVM_INVALID_STA;
2014 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
2015 }
37577fe2 2016
8ca151b5 2017 /* remove quota for this interface */
7754ae79 2018 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2019 if (ret)
2020 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2021
2022 if (vif->p2p)
2023 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2024
2025 /* this will take the cleared BSSID from bss_conf */
2026 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2027 if (ret)
2028 IWL_ERR(mvm,
2029 "failed to update MAC %pM (clear after unassoc)\n",
2030 vif->addr);
8ca151b5 2031 }
a20fd398 2032
a07a8f37
SS		 2033 /*
2034 * The firmware tracks the MU-MIMO group on its own.
f92659a1 2035 * However, on HW restart we should restore this data.
a07a8f37
SS		 2036 */
2037 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 2038 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 2039 ret = iwl_mvm_update_mu_groups(mvm, vif);
2040 if (ret)
2041 IWL_ERR(mvm,
2042 "failed to update VHT MU_MIMO groups\n");
2043 }
2044
e59647ea 2045 iwl_mvm_recalc_multicast(mvm);
34672bb3 2046 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2047
a20fd398
AO		 2048 /* reset rssi values */
2049 mvmvif->bf_data.ave_beacon_signal = 0;
2050
8e484f0b 2051 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2052 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2053 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2054 if (fw_has_capa(&mvm->fw->ucode_capa,
2055 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2056 iwl_mvm_config_scan(mvm);
b45242c9
AS		 2057 }
2058
2059 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2060 /*
b45242c9 2061 * We received a beacon from the associated AP so
210a544e
JB		 2062 * remove the session protection.
2063 */
2064 iwl_mvm_remove_time_event(mvm, mvmvif,
2065 &mvmvif->time_event_data);
cc87d322 2066
cc87d322
EH		 2067 iwl_mvm_sf_update(mvm, vif, false);
2068 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2069 }
2070
283115fb
AA		 2071 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2072 /*
2073 * Send power command on every beacon change,
2074 * because we may have not enabled beacon abort yet.
2075 */
2076 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2077 ret = iwl_mvm_power_update_mac(mvm);
2078 if (ret)
2079 IWL_ERR(mvm, "failed to update power mode\n");
2080 }
2081
88f2fd73
MG		 2082 if (changes & BSS_CHANGED_TXPOWER) {
2083 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2084 bss_conf->txpower);
2085 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2086 }
a20fd398
AO		 2087
2088 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2089 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2090 /* reset cqm events tracking */
2091 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2092 if (mvmvif->bf_data.bf_enabled) {
2093 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2094 if (ret)
2095 IWL_ERR(mvm,
2096 "failed to update CQM thresholds\n");
2097 }
a20fd398 2098 }
2ee8f021
EP		 2099
2100 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2101 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2102 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2103 }
8ca151b5
JB		 2104}
2105
5023d966
JB		 2106static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2107 struct ieee80211_vif *vif)
8ca151b5
JB		 2108{
2109 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2110 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2111 int ret;
2112
576eeee9
EP		 2113 /*
2114 * iwl_mvm_mac_ctxt_add() might read directly from the device
2115 * (the system time), so make sure it is available.
2116 */
2117 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2118 if (ret)
2119 return ret;
2120
8ca151b5
JB		 2121 mutex_lock(&mvm->mutex);
2122
2123 /* Send the beacon template */
2124 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2125 if (ret)
2126 goto out_unlock;
2127
6e97b0d2
IP		 2128 /*
2129 * Re-calculate the tsf id, as the master-slave relations depend on the
2130 * beacon interval, which was not known when the AP interface was added.
2131 */
2132 if (vif->type == NL80211_IFTYPE_AP)
2133 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2134
94939080
GG		 2135 mvmvif->ap_assoc_sta_count = 0;
2136
8ca151b5
JB		 2137 /* Add the mac context */
2138 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2139 if (ret)
2140 goto out_unlock;
2141
2142 /* Perform the binding */
2143 ret = iwl_mvm_binding_add_vif(mvm, vif);
2144 if (ret)
2145 goto out_remove;
2146
ced19f26 2147 ret = iwl_mvm_add_mcast_sta(mvm, vif);
8ca151b5
JB		 2148 if (ret)
2149 goto out_unbind;
2150
ced19f26
SS		 2151 /* Send the bcast station. At this stage the TBTT and DTIM time events
2152 * are added and applied to the scheduler */
2153 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
26d6c16b 2154 if (ret)
ced19f26 2155 goto out_rm_mcast;
26d6c16b 2156
5691e218
IP		 2157 /* must be set before quota calculations */
2158 mvmvif->ap_ibss_active = true;
2159
a11e144e 2160 /* power updated needs to be done before quotas */
999609f1 2161 iwl_mvm_power_update_mac(mvm);
a11e144e 2162
7754ae79 2163 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2164 if (ret)
a11e144e 2165 goto out_quota_failed;
8ca151b5 2166
5023d966 2167 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2168 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2169 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2170
29a90a49
EP		 2171 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2172
8e484f0b 2173 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2174
f697267f
AN		 2175 /* we don't support TDLS during DCM */
2176 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2177 iwl_mvm_teardown_tdls_peers(mvm);
2178
939e4904 2179 goto out_unlock;
8ca151b5 2180
a11e144e 2181out_quota_failed:
999609f1 2182 iwl_mvm_power_update_mac(mvm);
5691e218 2183 mvmvif->ap_ibss_active = false;
013290aa 2184 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2185out_rm_mcast:
2186 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB		 2187out_unbind:
2188 iwl_mvm_binding_remove_vif(mvm, vif);
2189out_remove:
2190 iwl_mvm_mac_ctxt_remove(mvm, vif);
2191out_unlock:
2192 mutex_unlock(&mvm->mutex);
576eeee9 2193 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2194 return ret;
2195}
2196
5023d966
JB		 2197static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2198 struct ieee80211_vif *vif)
8ca151b5
JB		 2199{
2200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2201 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2202
38a12b5b
JB		 2203 iwl_mvm_prepare_mac_removal(mvm, vif);
2204
8ca151b5
JB		 2205 mutex_lock(&mvm->mutex);
2206
664322fa 2207 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2208 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2209 iwl_mvm_remove_time_event(mvm, mvmvif,
2210 &mvmvif->time_event_data);
664322fa 2211 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2212 mvmvif->csa_countdown = false;
7f0a7c67 2213 }
664322fa 2214
003e5236
AO		 2215 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2216 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2217 mvm->csa_tx_block_bcn_timeout = 0;
2218 }
2219
5023d966 2220 mvmvif->ap_ibss_active = false;
1c87bbad 2221 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2222
8e484f0b 2223 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2224
29a90a49
EP		 2225 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2226
5023d966 2227 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2228 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2229 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2230
7754ae79 2231 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS		 2232
2233 /*
2234 * This is not very nice, but the simplest:
2235 * For older FWs removing the mcast sta before the bcast station may
2236 * cause assert 0x2b00.
2237 * This is fixed in later FW (which will stop beaconing when removing
2238 * bcast station).
2239 * So make the order of removal depend on the TLV
2240 */
2241 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2242 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2243 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2244 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2245 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2246 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2247
999609f1 2248 iwl_mvm_power_update_mac(mvm);
a11e144e 2249
8ca151b5
JB		 2250 iwl_mvm_mac_ctxt_remove(mvm, vif);
2251
2252 mutex_unlock(&mvm->mutex);
2253}
2254
5023d966
JB		 2255static void
2256iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2257 struct ieee80211_vif *vif,
2258 struct ieee80211_bss_conf *bss_conf,
2259 u32 changes)
8ca151b5 2260{
be2056fc 2261 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2262
be2056fc
IP		 2263 /* Changes will be applied when the AP/IBSS is started */
2264 if (!mvmvif->ap_ibss_active)
2265 return;
2266
863230da 2267 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2268 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2269 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2270 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2271
8ca151b5 2272 /* Need to send a new beacon template to the FW */
863230da
JB		 2273 if (changes & BSS_CHANGED_BEACON &&
2274 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2275 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2276
2277 if (changes & BSS_CHANGED_TXPOWER) {
2278 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2279 bss_conf->txpower);
2280 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2281 }
8ca151b5
JB		 2282}
2283
2284static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2285 struct ieee80211_vif *vif,
2286 struct ieee80211_bss_conf *bss_conf,
2287 u32 changes)
2288{
2289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2290
576eeee9
EP		 2291 /*
2292 * iwl_mvm_bss_info_changed_station() might call
2293 * iwl_mvm_protect_session(), which reads directly from
2294 * the device (the system time), so make sure it is available.
2295 */
2296 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2297 return;
2298
8ca151b5
JB		 2299 mutex_lock(&mvm->mutex);
2300
723f02ed 2301 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2302 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2303
8ca151b5
JB		 2304 switch (vif->type) {
2305 case NL80211_IFTYPE_STATION:
2306 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2307 break;
2308 case NL80211_IFTYPE_AP:
5023d966
JB		 2309 case NL80211_IFTYPE_ADHOC:
2310 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2311 break;
91b08c2d
AE		 2312 case NL80211_IFTYPE_MONITOR:
2313 if (changes & BSS_CHANGED_MU_GROUPS)
2314 iwl_mvm_update_mu_groups(mvm, vif);
2315 break;
8ca151b5
JB		 2316 default:
2317 /* shouldn't happen */
2318 WARN_ON_ONCE(1);
2319 }
2320
2321 mutex_unlock(&mvm->mutex);
576eeee9 2322 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2323}
2324
2325static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2326 struct ieee80211_vif *vif,
c56ef672 2327 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2328{
2329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2330 int ret;
2331
6749dd80
LC		 2332 if (hw_req->req.n_channels == 0 ||
2333 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2334 return -EINVAL;
2335
2336 mutex_lock(&mvm->mutex);
6749dd80 2337 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2338 mutex_unlock(&mvm->mutex);
6749dd80 2339
8ca151b5
JB		 2340 return ret;
2341}
2342
2343static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2344 struct ieee80211_vif *vif)
2345{
2346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2347
2348 mutex_lock(&mvm->mutex);
2349
e7d3abab
LC		 2350 /* Due to a race condition, it's possible that mac80211 asks
2351 * us to stop a hw_scan when it's already stopped. This can
2352 * happen, for instance, if we stopped the scan ourselves,
2353 * called ieee80211_scan_completed() and the userspace called
2354 * cancel scan scan before ieee80211_scan_work() could run.
2355 * To handle that, simply return if the scan is not running.
2356 */
262888fc 2357 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2358 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2359
2360 mutex_unlock(&mvm->mutex);
2361}
2362
2363static void
2364iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2365 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2366 int num_frames,
2367 enum ieee80211_frame_release_type reason,
2368 bool more_data)
2369{
2370 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2371
3e56eadf 2372 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2373
3e56eadf
JB		 2374 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2375 tids, more_data, false);
2376}
2377
2378static void
2379iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2380 struct ieee80211_sta *sta, u16 tids,
2381 int num_frames,
2382 enum ieee80211_frame_release_type reason,
2383 bool more_data)
2384{
2385 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2386
9a3fcf91 2387 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB		 2388
2389 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2390 tids, more_data, true);
8ca151b5
JB		 2391}
2392
65e25482
JB		 2393static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2394 enum sta_notify_cmd cmd,
2395 struct ieee80211_sta *sta)
8ca151b5
JB		 2396{
2397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2398 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2399 unsigned long txqs = 0, tids = 0;
3e56eadf 2400 int tid;
8ca151b5 2401
c22b0ff5
EG		 2402 spin_lock_bh(&mvmsta->lock);
2403 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2404 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2405
9a3fcf91
SS		 2406 if (!iwl_mvm_is_dqa_supported(mvm) &&
2407 tid_data->state != IWL_AGG_ON &&
c22b0ff5
EG		 2408 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2409 continue;
2410
6862fcee 2411 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS		 2412 continue;
2413
c22b0ff5
EG		 2414 __set_bit(tid_data->txq_id, &txqs);
2415
dd32162d 2416 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG		 2417 continue;
2418
2419 __set_bit(tid, &tids);
2420 }
2421
8ca151b5
JB		 2422 switch (cmd) {
2423 case STA_NOTIFY_SLEEP:
e3d4bc8c 2424 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2425 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2426
c22b0ff5 2427 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2428 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2429
2430 if (txqs)
2431 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2432 /*
2433 * The fw updates the STA to be asleep. Tx packets on the Tx
2434 * queues to this station will not be transmitted. The fw will
2435 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2436 */
2437 break;
2438 case STA_NOTIFY_AWAKE:
0ae98812 2439 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2440 break;
c22b0ff5
EG		 2441
2442 if (txqs)
2443 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2444 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2445 break;
2446 default:
2447 break;
2448 }
c22b0ff5 2449 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2450}
2451
65e25482
JB		 2452static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2453 struct ieee80211_vif *vif,
2454 enum sta_notify_cmd cmd,
2455 struct ieee80211_sta *sta)
2456{
2457 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2458}
2459
2460void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2461{
2462 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2463 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2464 struct ieee80211_sta *sta;
2465 struct iwl_mvm_sta *mvmsta;
2466 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2467
2468 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2469 return;
2470
2471 rcu_read_lock();
a9560029 2472 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB		 2473 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2474 rcu_read_unlock();
2475 return;
2476 }
2477
2478 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2479
2480 if (!mvmsta->vif ||
2481 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2482 rcu_read_unlock();
2483 return;
2484 }
2485
2486 if (mvmsta->sleeping != sleeping) {
2487 mvmsta->sleeping = sleeping;
2488 __iwl_mvm_mac_sta_notify(mvm->hw,
2489 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2490 sta);
2491 ieee80211_sta_ps_transition(sta, sleeping);
2492 }
2493
2494 if (sleeping) {
2495 switch (notif->type) {
2496 case IWL_MVM_PM_EVENT_AWAKE:
2497 case IWL_MVM_PM_EVENT_ASLEEP:
2498 break;
2499 case IWL_MVM_PM_EVENT_UAPSD:
2500 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2501 break;
2502 case IWL_MVM_PM_EVENT_PS_POLL:
2503 ieee80211_sta_pspoll(sta);
2504 break;
2505 default:
2506 break;
2507 }
2508 }
2509
2510 rcu_read_unlock();
2511}
2512
1ddbbb0c
JB		 2513static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2514 struct ieee80211_vif *vif,
2515 struct ieee80211_sta *sta)
2516{
2517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2518 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2519
2520 /*
2521 * This is called before mac80211 does RCU synchronisation,
2522 * so here we already invalidate our internal RCU-protected
2523 * station pointer. The rest of the code will thus no longer
2524 * be able to find the station this way, and we don't rely
2525 * on further RCU synchronisation after the sta_state()
2526 * callback deleted the station.
2527 */
2528 mutex_lock(&mvm->mutex);
2529 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2530 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2531 ERR_PTR(-ENOENT));
94939080 2532
1ddbbb0c
JB		 2533 mutex_unlock(&mvm->mutex);
2534}
2535
bd1ba664
JB		 2536static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2537 const u8 *bssid)
2538{
2539 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2540 return;
2541
c5241b0c 2542 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2543 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2544 return;
2545 }
2546
11dee0b4
EG		 2547 if (!vif->p2p &&
2548 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2549 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2550 return;
2551 }
2552
2553 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2554}
2555
1e8f1329
GBA		 2556static void
2557iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2558 struct ieee80211_vif *vif, u8 *peer_addr,
2559 enum nl80211_tdls_operation action)
2560{
2561 struct iwl_fw_dbg_trigger_tlv *trig;
2562 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2563
2564 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2565 return;
2566
2567 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2568 tdls_trig = (void *)trig->data;
7174beb6
JB		 2569 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2570 ieee80211_vif_to_wdev(vif), trig))
1e8f1329
GBA		 2571 return;
2572
2573 if (!(tdls_trig->action_bitmap & BIT(action)))
2574 return;
2575
2576 if (tdls_trig->peer_mode &&
2577 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2578 return;
2579
7174beb6
JB		 2580 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2581 "TDLS event occurred, peer %pM, action %d",
2582 peer_addr, action);
1e8f1329
GBA		 2583}
2584
24afba76
LK		 2585static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2586 struct iwl_mvm_sta *mvm_sta)
2587{
2588 struct iwl_mvm_tid_data *tid_data;
2589 struct sk_buff *skb;
2590 int i;
2591
2592 spin_lock_bh(&mvm_sta->lock);
2593 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2594 tid_data = &mvm_sta->tid_data[i];
2595 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
2596 ieee80211_free_txskb(mvm->hw, skb);
2597 }
2598 spin_unlock_bh(&mvm_sta->lock);
2599}
2600
8ca151b5
JB		 2601static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2602 struct ieee80211_vif *vif,
2603 struct ieee80211_sta *sta,
2604 enum ieee80211_sta_state old_state,
2605 enum ieee80211_sta_state new_state)
2606{
2607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2608 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2609 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 2610 int ret;
2611
2612 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2613 sta->addr, old_state, new_state);
2614
2615 /* this would be a mac80211 bug ... but don't crash */
2616 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2617 return -EINVAL;
2618
2619 /* if a STA is being removed, reuse its ID */
2620 flush_work(&mvm->sta_drained_wk);
2621
24afba76
LK		 2622 /*
2623 * If we are in a STA removal flow and in DQA mode:
2624 *
2625 * This is after the sync_rcu part, so the queues have already been
2626 * flushed. No more TXs on their way in mac80211's path, and no more in
2627 * the queues.
2628 * Also, we won't be getting any new TX frames for this station.
2629 * What we might have are deferred TX frames that need to be taken care
2630 * of.
2631 *
2632 * Drop any still-queued deferred-frame before removing the STA, and
2633 * make sure the worker is no longer handling frames for this STA.
2634 */
2635 if (old_state == IEEE80211_STA_NONE &&
2636 new_state == IEEE80211_STA_NOTEXIST &&
2637 iwl_mvm_is_dqa_supported(mvm)) {
24afba76
LK		 2638 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2639 flush_work(&mvm->add_stream_wk);
2640
2641 /*
2642 * No need to make sure deferred TX indication is off since the
2643 * worker will already remove it if it was on
2644 */
2645 }
2646
8ca151b5 2647 mutex_lock(&mvm->mutex);
6ea29ce5
JB		 2648 /* track whether or not the station is associated */
2649 mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2650
8ca151b5
JB		 2651 if (old_state == IEEE80211_STA_NOTEXIST &&
2652 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2653 /*
2654 * Firmware bug - it'll crash if the beacon interval is less
2655 * than 16. We can't avoid connecting at all, so refuse the
2656 * station state change, this will cause mac80211 to abandon
2657 * attempts to connect to this AP, and eventually wpa_s will
2658 * blacklist the AP...
2659 */
2660 if (vif->type == NL80211_IFTYPE_STATION &&
2661 vif->bss_conf.beacon_int < 16) {
2662 IWL_ERR(mvm,
2663 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2664 sta->addr, vif->bss_conf.beacon_int);
2665 ret = -EINVAL;
2666 goto out_unlock;
2667 }
cf7b491d
AN		 2668
2669 if (sta->tdls &&
2670 (vif->p2p ||
fa3d07e4
AN		 2671 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2672 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2673 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2674 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2675 ret = -EBUSY;
2676 goto out_unlock;
2677 }
2678
8ca151b5 2679 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2680 if (sta->tdls && ret == 0) {
fa3d07e4 2681 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2682 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2683 NL80211_TDLS_SETUP);
2684 }
8ca151b5
JB		 2685 } else if (old_state == IEEE80211_STA_NONE &&
2686 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2687 /*
2688 * EBS may be disabled due to previous failures reported by FW.
2689 * Reset EBS status here assuming environment has been changed.
2690 */
2691 mvm->last_ebs_successful = true;
bd1ba664 2692 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2693 ret = 0;
2694 } else if (old_state == IEEE80211_STA_AUTH &&
2695 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2696 if (vif->type == NL80211_IFTYPE_AP) {
2697 mvmvif->ap_assoc_sta_count++;
2698 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2699 }
735a0045
GM		 2700
2701 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2702 true);
7a453973 2703 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB		 2704 } else if (old_state == IEEE80211_STA_ASSOC &&
2705 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2706
2707 /* we don't support TDLS during DCM */
2708 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2709 iwl_mvm_teardown_tdls_peers(mvm);
2710
1e8f1329
GBA		 2711 if (sta->tdls)
2712 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2713 NL80211_TDLS_ENABLE_LINK);
2714
7df15b1e 2715 /* enable beacon filtering */
fa7b2e7f 2716 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2717 ret = 0;
2718 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2719 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2720 /* disable beacon filtering */
a1022927 2721 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2722 ret = 0;
2723 } else if (old_state == IEEE80211_STA_ASSOC &&
2724 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2725 if (vif->type == NL80211_IFTYPE_AP) {
2726 mvmvif->ap_assoc_sta_count--;
2727 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2728 }
8ca151b5
JB		 2729 ret = 0;
2730 } else if (old_state == IEEE80211_STA_AUTH &&
2731 new_state == IEEE80211_STA_NONE) {
2732 ret = 0;
2733 } else if (old_state == IEEE80211_STA_NONE &&
2734 new_state == IEEE80211_STA_NOTEXIST) {
2735 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2736 if (sta->tdls) {
fa3d07e4 2737 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2738 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2739 NL80211_TDLS_DISABLE_LINK);
2740 }
8ca151b5
JB		 2741 } else {
2742 ret = -EIO;
2743 }
48bc1307 2744 out_unlock:
8ca151b5
JB		 2745 mutex_unlock(&mvm->mutex);
2746
9c126cd6
LK		 2747 if (sta->tdls && ret == 0) {
2748 if (old_state == IEEE80211_STA_NOTEXIST &&
2749 new_state == IEEE80211_STA_NONE)
2750 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2751 else if (old_state == IEEE80211_STA_NONE &&
2752 new_state == IEEE80211_STA_NOTEXIST)
2753 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2754 }
2755
8ca151b5
JB		 2756 return ret;
2757}
2758
2759static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2760{
2761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2762
2763 mvm->rts_threshold = value;
2764
2765 return 0;
2766}
2767
1f3b0ff8
LE		 2768static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2769 struct ieee80211_vif *vif,
2770 struct ieee80211_sta *sta, u32 changed)
2771{
2772 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2773
2774 if (vif->type == NL80211_IFTYPE_STATION &&
2775 changed & IEEE80211_RC_NSS_CHANGED)
2776 iwl_mvm_sf_update(mvm, vif, false);
2777}
2778
8ca151b5
JB		 2779static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2780 struct ieee80211_vif *vif, u16 ac,
2781 const struct ieee80211_tx_queue_params *params)
2782{
2783 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2784 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2785
2786 mvmvif->queue_params[ac] = *params;
2787
2788 /*
2789 * No need to update right away, we'll get BSS_CHANGED_QOS
2790 * The exception is P2P_DEVICE interface which needs immediate update.
2791 */
2792 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2793 int ret;
2794
2795 mutex_lock(&mvm->mutex);
3dfd3a97 2796 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2797 mutex_unlock(&mvm->mutex);
2798 return ret;
2799 }
2800 return 0;
2801}
2802
2803static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2804 struct ieee80211_vif *vif)
2805{
2806 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2807 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2808 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2809
2810 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2811 return;
2812
576eeee9
EP		 2813 /*
2814 * iwl_mvm_protect_session() reads directly from the device
2815 * (the system time), so make sure it is available.
2816 */
2817 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2818 return;
2819
8ca151b5
JB		 2820 mutex_lock(&mvm->mutex);
2821 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2822 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2823 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2824
2825 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2826}
2827
35a000b7
DS		 2828static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2829 struct ieee80211_vif *vif,
2830 struct cfg80211_sched_scan_request *req,
633e2713 2831 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2832{
2833 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2834
35a000b7 2835 int ret;
4660dfbb 2836
35a000b7
DS		 2837 mutex_lock(&mvm->mutex);
2838
1f940386 2839 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2840 ret = -EBUSY;
2841 goto out;
2842 }
2843
19945dfb 2844 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2845
35a000b7
DS		 2846out:
2847 mutex_unlock(&mvm->mutex);
2848 return ret;
2849}
2850
37e3308c
JB		 2851static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2852 struct ieee80211_vif *vif)
35a000b7
DS		 2853{
2854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2855 int ret;
35a000b7
DS		 2856
2857 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2858
2859 /* Due to a race condition, it's possible that mac80211 asks
2860 * us to stop a sched_scan when it's already stopped. This
2861 * can happen, for instance, if we stopped the scan ourselves,
2862 * called ieee80211_sched_scan_stopped() and the userspace called
2863 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2864 * could run. To handle this, simply return if the scan is
2865 * not running.
2866 */
262888fc 2867 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2868 mutex_unlock(&mvm->mutex);
2869 return 0;
2870 }
2871
c7d42480 2872 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2873 mutex_unlock(&mvm->mutex);
33ea27f6 2874 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2875
33ea27f6 2876 return ret;
35a000b7
DS		 2877}
2878
8ca151b5
JB		 2879static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2880 enum set_key_cmd cmd,
2881 struct ieee80211_vif *vif,
2882 struct ieee80211_sta *sta,
2883 struct ieee80211_key_conf *key)
2884{
2885 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2886 struct iwl_mvm_sta *mvmsta;
2887 struct iwl_mvm_key_pn *ptk_pn;
2888 int keyidx = key->keyidx;
8ca151b5 2889 int ret;
d6ee54a9 2890 u8 key_offset;
8ca151b5 2891
3b37f4c9 2892 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 2893 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2894 return -EOPNOTSUPP;
2895 }
2896
2897 switch (key->cipher) {
2898 case WLAN_CIPHER_SUITE_TKIP:
2899 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2900 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2901 break;
ca8c0f4b 2902 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2903 case WLAN_CIPHER_SUITE_GCMP:
2904 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS		 2905 if (!iwl_mvm_has_new_tx_api(mvm))
2906 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 2907 break;
8ca151b5 2908 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2909 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2910 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2911 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2912 break;
2913 case WLAN_CIPHER_SUITE_WEP40:
2914 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2915 /* For non-client mode, only use WEP keys for TX as we probably
2916 * don't have a station yet anyway and would then have to keep
2917 * track of the keys, linking them to each of the clients/peers
2918 * as they appear. For now, don't do that, for performance WEP
2919 * offload doesn't really matter much, but we need it for some
2920 * other offload features in client mode.
8ca151b5 2921 */
ba3943b0
JB		 2922 if (vif->type != NL80211_IFTYPE_STATION)
2923 return 0;
2924 break;
8ca151b5 2925 default:
e36e5433
MS		 2926 /* currently FW supports only one optional cipher scheme */
2927 if (hw->n_cipher_schemes &&
2928 hw->cipher_schemes->cipher == key->cipher)
2929 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2930 else
2931 return -EOPNOTSUPP;
8ca151b5
JB		 2932 }
2933
2934 mutex_lock(&mvm->mutex);
2935
2936 switch (cmd) {
2937 case SET_KEY:
5023d966
JB		 2938 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2939 vif->type == NL80211_IFTYPE_AP) && !sta) {
2940 /*
2941 * GTK on AP interface is a TX-only key, return 0;
2942 * on IBSS they're per-station and because we're lazy
2943 * we don't support them for RX, so do the same.
8e160ab8 2944 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2945 */
8e160ab8
AB		 2946 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2947 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2948 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2949 ret = -EOPNOTSUPP;
2950 else
2951 ret = 0;
85aeb58c
DS		 2952
2953 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2954 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2955 !iwl_mvm_has_new_tx_api(mvm)) {
2956 key->hw_key_idx = STA_KEY_IDX_INVALID;
2957 break;
2958 }
6caffd4f
JB		 2959 }
2960
b546dcd6
JB		 2961 /* During FW restart, in order to restore the state as it was,
2962 * don't try to reprogram keys we previously failed for.
2963 */
2964 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2965 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2966 IWL_DEBUG_MAC80211(mvm,
2967 "skip invalid idx key programming during restart\n");
2968 ret = 0;
2969 break;
2970 }
2971
f5e28eac
JB		 2972 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2973 sta && iwl_mvm_has_new_rx_api(mvm) &&
2974 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2975 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2976 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2977 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2978 struct ieee80211_key_seq seq;
2979 int tid, q;
2980
2981 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2982 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2983 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2984 mvm->trans->num_rx_queues *
2985 sizeof(ptk_pn->q[0]),
2986 GFP_KERNEL);
2987 if (!ptk_pn) {
2988 ret = -ENOMEM;
2989 break;
2990 }
2991
2992 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2993 ieee80211_get_key_rx_seq(key, tid, &seq);
2994 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2995 memcpy(ptk_pn->q[q].pn[tid],
2996 seq.ccmp.pn,
2997 IEEE80211_CCMP_PN_LEN);
2998 }
2999
3000 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
3001 }
3002
d6ee54a9
LC		 3003 /* in HW restart reuse the index, otherwise request a new one */
3004 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3005 key_offset = key->hw_key_idx;
3006 else
3007 key_offset = STA_KEY_IDX_INVALID;
3008
8ca151b5 3009 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 3010 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 3011 if (ret) {
3012 IWL_WARN(mvm, "set key failed\n");
3013 /*
3014 * can't add key for RX, but we don't need it
3015 * in the device for TX so still return 0
3016 */
6caffd4f 3017 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 3018 ret = 0;
3019 }
3020
3021 break;
3022 case DISABLE_KEY:
6caffd4f
JB		 3023 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3024 ret = 0;
3025 break;
3026 }
3027
f5e28eac
JB		 3028 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3029 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3030 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 3031 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3032 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 3033 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3034 ptk_pn = rcu_dereference_protected(
3035 mvmsta->ptk_pn[keyidx],
3036 lockdep_is_held(&mvm->mutex));
3037 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3038 if (ptk_pn)
3039 kfree_rcu(ptk_pn, rcu_head);
3040 }
3041
8ca151b5
JB		 3042 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3043 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3044 break;
3045 default:
3046 ret = -EINVAL;
3047 }
3048
3049 mutex_unlock(&mvm->mutex);
3050 return ret;
3051}
3052
3053static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3054 struct ieee80211_vif *vif,
3055 struct ieee80211_key_conf *keyconf,
3056 struct ieee80211_sta *sta,
3057 u32 iv32, u16 *phase1key)
3058{
3059 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3060
5023d966
JB		 3061 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3062 return;
3063
8ca151b5
JB		 3064 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3065}
3066
3067
b112889c
AM		 3068static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3069 struct iwl_rx_packet *pkt, void *data)
3070{
3071 struct iwl_mvm *mvm =
3072 container_of(notif_wait, struct iwl_mvm, notif_wait);
3073 struct iwl_hs20_roc_res *resp;
3074 int resp_len = iwl_rx_packet_payload_len(pkt);
3075 struct iwl_mvm_time_event_data *te_data = data;
3076
3077 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3078 return true;
3079
3080 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3081 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3082 return true;
3083 }
3084
3085 resp = (void *)pkt->data;
3086
3087 IWL_DEBUG_TE(mvm,
3088 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3089 resp->status, resp->event_unique_id);
3090
3091 te_data->uid = le32_to_cpu(resp->event_unique_id);
3092 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3093 te_data->uid);
3094
3095 spin_lock_bh(&mvm->time_event_lock);
3096 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3097 spin_unlock_bh(&mvm->time_event_lock);
3098
3099 return true;
3100}
3101
dc28e12f
MG		 3102#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3103#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3104#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3105#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3106#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 3107static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3108 struct ieee80211_channel *channel,
3109 struct ieee80211_vif *vif,
3110 int duration)
3111{
3112 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3113 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3114 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3115 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3116 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 3117 u32 dtim_interval = vif->bss_conf.dtim_period *
3118 vif->bss_conf.beacon_int;
3119 u32 req_dur, delay;
b112889c
AM		 3120 struct iwl_hs20_roc_req aux_roc_req = {
3121 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3122 .id_and_color =
3123 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3124 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3125 /* Set the channel info data */
57fbcce3 3126 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 3127 PHY_BAND_24 : PHY_BAND_5,
3128 .channel_info.channel = channel->hw_value,
3129 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3130 /* Set the time and duration */
3131 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 3132 };
3133
dc28e12f
MG		 3134 delay = AUX_ROC_MIN_DELAY;
3135 req_dur = MSEC_TO_TU(duration);
3136
3137 /*
3138 * If we are associated we want the delay time to be at least one
3139 * dtim interval so that the FW can wait until after the DTIM and
3140 * then start the time event, this will potentially allow us to
3141 * remain off-channel for the max duration.
3142 * Since we want to use almost a whole dtim interval we would also
3143 * like the delay to be for 2-3 dtim intervals, in case there are
3144 * other time events with higher priority.
3145 */
3146 if (vif->bss_conf.assoc) {
3147 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3148 /* We cannot remain off-channel longer than the DTIM interval */
3149 if (dtim_interval <= req_dur) {
3150 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3151 if (req_dur <= AUX_ROC_MIN_DURATION)
3152 req_dur = dtim_interval -
3153 AUX_ROC_MIN_SAFETY_BUFFER;
3154 }
3155 }
3156
3157 aux_roc_req.duration = cpu_to_le32(req_dur);
3158 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3159
3160 IWL_DEBUG_TE(mvm,
3161 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3162 channel->hw_value, req_dur, duration, delay,
3163 dtim_interval);
b112889c
AM		 3164 /* Set the node address */
3165 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3166
a6cc5163
MG		 3167 lockdep_assert_held(&mvm->mutex);
3168
3169 spin_lock_bh(&mvm->time_event_lock);
3170
3171 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3172 spin_unlock_bh(&mvm->time_event_lock);
3173 return -EIO;
3174 }
3175
b112889c
AM		 3176 te_data->vif = vif;
3177 te_data->duration = duration;
3178 te_data->id = HOT_SPOT_CMD;
3179
b112889c
AM		 3180 spin_unlock_bh(&mvm->time_event_lock);
3181
3182 /*
3183 * Use a notification wait, which really just processes the
3184 * command response and doesn't wait for anything, in order
3185 * to be able to process the response and get the UID inside
3186 * the RX path. Using CMD_WANT_SKB doesn't work because it
3187 * stores the buffer and then wakes up this thread, by which
3188 * time another notification (that the time event started)
3189 * might already be processed unsuccessfully.
3190 */
3191 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3192 time_event_response,
3193 ARRAY_SIZE(time_event_response),
3194 iwl_mvm_rx_aux_roc, te_data);
3195
3196 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3197 &aux_roc_req);
3198
3199 if (res) {
3200 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3201 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3202 goto out_clear_te;
3203 }
3204
3205 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3206 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3207 /* should never fail */
3208 WARN_ON_ONCE(res);
3209
3210 if (res) {
3211 out_clear_te:
3212 spin_lock_bh(&mvm->time_event_lock);
3213 iwl_mvm_te_clear_data(mvm, te_data);
3214 spin_unlock_bh(&mvm->time_event_lock);
3215 }
3216
3217 return res;
3218}
3219
8ca151b5
JB		 3220static int iwl_mvm_roc(struct ieee80211_hw *hw,
3221 struct ieee80211_vif *vif,
3222 struct ieee80211_channel *channel,
d339d5ca
IP		 3223 int duration,
3224 enum ieee80211_roc_type type)
8ca151b5
JB		 3225{
3226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3227 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3228 struct cfg80211_chan_def chandef;
31d385ae
IP		 3229 struct iwl_mvm_phy_ctxt *phy_ctxt;
3230 int ret, i;
3231
3232 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3233 duration, type);
8ca151b5 3234
6ed13164
MG		 3235 flush_work(&mvm->roc_done_wk);
3236
a6cc5163
MG		 3237 mutex_lock(&mvm->mutex);
3238
b112889c
AM		 3239 switch (vif->type) {
3240 case NL80211_IFTYPE_STATION:
859d914c
JB		 3241 if (fw_has_capa(&mvm->fw->ucode_capa,
3242 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3243 /* Use aux roc framework (HS20) */
3244 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3245 vif, duration);
3246 goto out_unlock;
3247 }
3248 IWL_ERR(mvm, "hotspot not supported\n");
3249 ret = -EINVAL;
a6cc5163 3250 goto out_unlock;
b112889c
AM		 3251 case NL80211_IFTYPE_P2P_DEVICE:
3252 /* handle below */
3253 break;
3254 default:
3255 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3256 ret = -EINVAL;
3257 goto out_unlock;
8ca151b5
JB		 3258 }
3259
31d385ae
IP		 3260 for (i = 0; i < NUM_PHY_CTX; i++) {
3261 phy_ctxt = &mvm->phy_ctxts[i];
3262 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3263 continue;
3264
3265 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3266 /*
3267 * Unbind the P2P_DEVICE from the current PHY context,
3268 * and if the PHY context is not used remove it.
3269 */
3270 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3271 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3272 goto out_unlock;
3273
3274 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3275
3276 /* Bind the P2P_DEVICE to the current PHY Context */
3277 mvmvif->phy_ctxt = phy_ctxt;
3278
3279 ret = iwl_mvm_binding_add_vif(mvm, vif);
3280 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3281 goto out_unlock;
3282
3283 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3284 goto schedule_time_event;
3285 }
3286 }
3287
3288 /* Need to update the PHY context only if the ROC channel changed */
3289 if (channel == mvmvif->phy_ctxt->channel)
3290 goto schedule_time_event;
3291
8ca151b5 3292 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3293
31d385ae
IP		 3294 /*
3295 * Change the PHY context configuration as it is currently referenced
3296 * only by the P2P Device MAC
3297 */
3298 if (mvmvif->phy_ctxt->ref == 1) {
3299 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3300 &chandef, 1, 1);
3301 if (ret)
3302 goto out_unlock;
3303 } else {
3304 /*
3305 * The PHY context is shared with other MACs. Need to remove the
3306 * P2P Device from the binding, allocate an new PHY context and
3307 * create a new binding
3308 */
3309 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3310 if (!phy_ctxt) {
3311 ret = -ENOSPC;
3312 goto out_unlock;
3313 }
3314
3315 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3316 1, 1);
3317 if (ret) {
3318 IWL_ERR(mvm, "Failed to change PHY context\n");
3319 goto out_unlock;
3320 }
3321
3322 /* Unbind the P2P_DEVICE from the current PHY context */
3323 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3324 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3325 goto out_unlock;
3326
3327 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3328
3329 /* Bind the P2P_DEVICE to the new allocated PHY context */
3330 mvmvif->phy_ctxt = phy_ctxt;
3331
3332 ret = iwl_mvm_binding_add_vif(mvm, vif);
3333 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3334 goto out_unlock;
3335
3336 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3337 }
3338
3339schedule_time_event:
8ca151b5 3340 /* Schedule the time events */
e635c797 3341 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3342
31d385ae 3343out_unlock:
8ca151b5
JB		 3344 mutex_unlock(&mvm->mutex);
3345 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3346 return ret;
3347}
3348
3349static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3350{
3351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3352
3353 IWL_DEBUG_MAC80211(mvm, "enter\n");
3354
3355 mutex_lock(&mvm->mutex);
bf5da87f 3356 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3357 mutex_unlock(&mvm->mutex);
3358
3359 IWL_DEBUG_MAC80211(mvm, "leave\n");
3360 return 0;
3361}
3362
b08c1d97
LC		 3363static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3364 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3365{
fe0f2de3
IP		 3366 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3367 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3368 int ret;
3369
b08c1d97
LC		 3370 lockdep_assert_held(&mvm->mutex);
3371
53a9d61e 3372 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3373
fe0f2de3
IP		 3374 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3375 if (!phy_ctxt) {
3376 ret = -ENOSPC;
3377 goto out;
3378 }
8ca151b5 3379
dcbc3e1a 3380 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3381 ctx->rx_chains_static,
3382 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3383 if (ret) {
3384 IWL_ERR(mvm, "Failed to add PHY context\n");
3385 goto out;
3386 }
3387
53a9d61e 3388 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3389 *phy_ctxt_id = phy_ctxt->id;
3390out:
b08c1d97
LC		 3391 return ret;
3392}
3393
3394static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3395 struct ieee80211_chanctx_conf *ctx)
3396{
3397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3398 int ret;
3399
3400 mutex_lock(&mvm->mutex);
3401 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3402 mutex_unlock(&mvm->mutex);
b08c1d97 3403
8ca151b5
JB		 3404 return ret;
3405}
3406
b08c1d97
LC		 3407static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3408 struct ieee80211_chanctx_conf *ctx)
3409{
3410 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3411 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3412
3413 lockdep_assert_held(&mvm->mutex);
3414
3415 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3416}
3417
8ca151b5
JB		 3418static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3419 struct ieee80211_chanctx_conf *ctx)
3420{
3421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3422
3423 mutex_lock(&mvm->mutex);
b08c1d97 3424 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3425 mutex_unlock(&mvm->mutex);
3426}
3427
3428static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3429 struct ieee80211_chanctx_conf *ctx,
3430 u32 changed)
3431{
3432 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3433 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3434 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3435
31d385ae
IP		 3436 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3437 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3438 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3439 IEEE80211_CHANCTX_CHANGE_RADAR |
3440 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3441 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3442 phy_ctxt->ref, changed))
3443 return;
3444
8ca151b5 3445 mutex_lock(&mvm->mutex);
4d66449a 3446 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3447 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3448 ctx->rx_chains_static,
3449 ctx->rx_chains_dynamic);
3450 mutex_unlock(&mvm->mutex);
3451}
3452
b08c1d97
LC		 3453static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3454 struct ieee80211_vif *vif,
f0c97783
LC		 3455 struct ieee80211_chanctx_conf *ctx,
3456 bool switching_chanctx)
8ca151b5 3457{
fe0f2de3
IP		 3458 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3459 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3460 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3461 int ret;
3462
b08c1d97 3463 lockdep_assert_held(&mvm->mutex);
8ca151b5 3464
fe0f2de3 3465 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3466
3467 switch (vif->type) {
3468 case NL80211_IFTYPE_AP:
4741dd04
LC		 3469 /* only needed if we're switching chanctx (i.e. during CSA) */
3470 if (switching_chanctx) {
bd3398e2
AO		 3471 mvmvif->ap_ibss_active = true;
3472 break;
3473 }
5023d966 3474 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3475 /*
3476 * The AP binding flow is handled as part of the start_ap flow
5023d966 3477 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3478 */
3479 ret = 0;
b08c1d97 3480 goto out;
8ca151b5 3481 case NL80211_IFTYPE_STATION:
2533edce 3482 break;
8ca151b5 3483 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3484 /* always disable PS when a monitor interface is active */
3485 mvmvif->ps_disabled = true;
8ca151b5
JB		 3486 break;
3487 default:
3488 ret = -EINVAL;
b08c1d97 3489 goto out;
8ca151b5
JB		 3490 }
3491
3492 ret = iwl_mvm_binding_add_vif(mvm, vif);
3493 if (ret)
b08c1d97 3494 goto out;
8ca151b5
JB		 3495
3496 /*
92d85562
AB		 3497 * Power state must be updated before quotas,
3498 * otherwise fw will complain.
3499 */
999609f1 3500 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3501
3502 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3503 * interfaces. For the other types, the bss_info changed flow
3504 * will handle quota settings.
3505 */
3506 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3507 mvmvif->monitor_active = true;
7754ae79 3508 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3509 if (ret)
3510 goto out_remove_binding;
0e39eb03
CRI		 3511
3512 ret = iwl_mvm_add_snif_sta(mvm, vif);
3513 if (ret)
3514 goto out_remove_binding;
3515
8ca151b5
JB		 3516 }
3517
bd3398e2 3518 /* Handle binding during CSA */
a57c688d 3519 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3520 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3521 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3522 }
3523
4741dd04 3524 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3525 u32 duration = 2 * vif->bss_conf.beacon_int;
3526
3527 /* iwl_mvm_protect_session() reads directly from the
3528 * device (the system time), so make sure it is
3529 * available.
3530 */
3531 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3532 if (ret)
3533 goto out_remove_binding;
3534
3535 /* Protect the session to make sure we hear the first
3536 * beacon on the new channel.
3537 */
3538 iwl_mvm_protect_session(mvm, vif, duration, duration,
3539 vif->bss_conf.beacon_int / 2,
3540 true);
3541
3542 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3543
7754ae79 3544 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3545 }
3546
b08c1d97 3547 goto out;
8ca151b5 3548
b08c1d97 3549out_remove_binding:
8ca151b5 3550 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3551 iwl_mvm_power_update_mac(mvm);
b08c1d97 3552out:
8ca151b5
JB		 3553 if (ret)
3554 mvmvif->phy_ctxt = NULL;
3555 return ret;
3556}
b08c1d97
LC		 3557static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3558 struct ieee80211_vif *vif,
3559 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3560{
3561 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3562 int ret;
8ca151b5
JB		 3563
3564 mutex_lock(&mvm->mutex);
f0c97783 3565 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3566 mutex_unlock(&mvm->mutex);
3567
3568 return ret;
3569}
3570
3571static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3572 struct ieee80211_vif *vif,
f0c97783
LC		 3573 struct ieee80211_chanctx_conf *ctx,
3574 bool switching_chanctx)
b08c1d97
LC		 3575{
3576 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3577 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3578
3579 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3580
3581 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3582
8ca151b5 3583 switch (vif->type) {
5023d966 3584 case NL80211_IFTYPE_ADHOC:
b08c1d97 3585 goto out;
8ca151b5 3586 case NL80211_IFTYPE_MONITOR:
1e1391ca 3587 mvmvif->monitor_active = false;
2533edce 3588 mvmvif->ps_disabled = false;
0e39eb03 3589 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3590 break;
bd3398e2
AO		 3591 case NL80211_IFTYPE_AP:
3592 /* This part is triggered only during CSA */
4741dd04 3593 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3594 goto out;
bd3398e2 3595
7ef0aab6
AO		 3596 mvmvif->csa_countdown = false;
3597
003e5236
AO		 3598 /* Set CS bit on all the stations */
3599 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3600
3601 /* Save blocked iface, the timeout is set on the next beacon */
3602 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3603
bd3398e2 3604 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3605 break;
3606 case NL80211_IFTYPE_STATION:
3607 if (!switching_chanctx)
3608 break;
3609
3610 disabled_vif = vif;
3611
3dfd3a97 3612 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3613 break;
8ca151b5
JB		 3614 default:
3615 break;
3616 }
3617
7754ae79 3618 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3619 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3620
b08c1d97 3621out:
a11e144e 3622 mvmvif->phy_ctxt = NULL;
999609f1 3623 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3624}
3625
3626static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3627 struct ieee80211_vif *vif,
3628 struct ieee80211_chanctx_conf *ctx)
3629{
3630 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3631
3632 mutex_lock(&mvm->mutex);
f0c97783 3633 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3634 mutex_unlock(&mvm->mutex);
3635}
3636
50cc9574
LC		 3637static int
3638iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3639 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3640{
b08c1d97
LC		 3641 int ret;
3642
b08c1d97 3643 mutex_lock(&mvm->mutex);
f0c97783 3644 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3645 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3646
3647 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3648 if (ret) {
3649 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3650 goto out_reassign;
3651 }
3652
f0c97783
LC		 3653 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3654 true);
b08c1d97
LC		 3655 if (ret) {
3656 IWL_ERR(mvm,
3657 "failed to assign new_ctx during channel switch\n");
3658 goto out_remove;
3659 }
3660
f697267f
AN		 3661 /* we don't support TDLS during DCM - can be caused by channel switch */
3662 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3663 iwl_mvm_teardown_tdls_peers(mvm);
3664
b08c1d97
LC		 3665 goto out;
3666
3667out_remove:
3668 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3669
3670out_reassign:
6fd1fb63 3671 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3672 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3673 goto out_restart;
3674 }
3675
6fd1fb63
LC		 3676 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3677 true)) {
b08c1d97
LC		 3678 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3679 goto out_restart;
3680 }
3681
3682 goto out;
3683
3684out_restart:
3685 /* things keep failing, better restart the hw */
3686 iwl_mvm_nic_restart(mvm, false);
3687
3688out:
3689 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3690
3691 return ret;
3692}
3693
48a256e8
LC		 3694static int
3695iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3696 struct ieee80211_vif_chanctx_switch *vifs)
3697{
3698 int ret;
3699
3700 mutex_lock(&mvm->mutex);
3701 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3702
3703 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3704 true);
3705 if (ret) {
3706 IWL_ERR(mvm,
3707 "failed to assign new_ctx during channel switch\n");
3708 goto out_reassign;
3709 }
3710
3711 goto out;
3712
3713out_reassign:
3714 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3715 true)) {
3716 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3717 goto out_restart;
3718 }
3719
3720 goto out;
3721
3722out_restart:
3723 /* things keep failing, better restart the hw */
3724 iwl_mvm_nic_restart(mvm, false);
3725
3726out:
3727 mutex_unlock(&mvm->mutex);
3728
3729 return ret;
3730}
3731
50cc9574
LC		 3732static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3733 struct ieee80211_vif_chanctx_switch *vifs,
3734 int n_vifs,
3735 enum ieee80211_chanctx_switch_mode mode)
3736{
3737 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3738 int ret;
3739
3740 /* we only support a single-vif right now */
3741 if (n_vifs > 1)
3742 return -EOPNOTSUPP;
3743
3744 switch (mode) {
3745 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3746 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3747 break;
3748 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3749 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3750 break;
3751 default:
3752 ret = -EOPNOTSUPP;
3753 break;
3754 }
3755
b08c1d97
LC		 3756 return ret;
3757}
3758
2f0282db
JB		 3759static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3760{
3761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3762
3763 return mvm->ibss_manager;
3764}
3765
8ca151b5
JB		 3766static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3767 struct ieee80211_sta *sta,
3768 bool set)
3769{
3770 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3771 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3772
3773 if (!mvm_sta || !mvm_sta->vif) {
3774 IWL_ERR(mvm, "Station is not associated to a vif\n");
3775 return -EINVAL;
3776 }
3777
3778 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3779}
3780
507cadf2
DS		 3781#ifdef CONFIG_NL80211_TESTMODE
3782static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3783 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3784 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3785 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3786};
3787
3788static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3789 struct ieee80211_vif *vif,
3790 void *data, int len)
3791{
3792 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3793 int err;
3794 u32 noa_duration;
3795
fceb6435
JB		 3796 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3797 NULL);
507cadf2
DS		 3798 if (err)
3799 return err;
3800
3801 if (!tb[IWL_MVM_TM_ATTR_CMD])
3802 return -EINVAL;
3803
3804 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3805 case IWL_MVM_TM_CMD_SET_NOA:
3806 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3807 !vif->bss_conf.enable_beacon ||
3808 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3809 return -EINVAL;
3810
3811 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3812 if (noa_duration >= vif->bss_conf.beacon_int)
3813 return -EINVAL;
3814
3815 mvm->noa_duration = noa_duration;
3816 mvm->noa_vif = vif;
3817
7754ae79 3818 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3819 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3820 /* must be associated client vif - ignore authorized */
3821 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3822 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3823 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3824 return -EINVAL;
3825
3826 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3827 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3828 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3829 }
3830
3831 return -EOPNOTSUPP;
3832}
3833
3834static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3835 struct ieee80211_vif *vif,
3836 void *data, int len)
3837{
3838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3839 int err;
3840
3841 mutex_lock(&mvm->mutex);
3842 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3843 mutex_unlock(&mvm->mutex);
3844
3845 return err;
3846}
3847#endif
3848
622e3f9b
LC		 3849static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3850 struct ieee80211_vif *vif,
3851 struct ieee80211_channel_switch *chsw)
3852{
3853 /* By implementing this operation, we prevent mac80211 from
3854 * starting its own channel switch timer, so that we can call
3855 * ieee80211_chswitch_done() ourselves at the right time
3856 * (which is when the absence time event starts).
3857 */
3858
3859 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3860 "dummy channel switch op\n");
3861}
3862
f028905c
LC		 3863static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3864 struct ieee80211_vif *vif,
3865 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3866{
3867 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3868 struct ieee80211_vif *csa_vif;
f6c34820 3869 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3870 u32 apply_time;
f028905c 3871 int ret;
bd3398e2
AO		 3872
3873 mutex_lock(&mvm->mutex);
664322fa 3874
81d62d5a
JB		 3875 mvmvif->csa_failed = false;
3876
6b20d774 3877 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3878 chsw->chandef.center_freq1);
6b20d774 3879
7174beb6
JB		 3880 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3881 ieee80211_vif_to_wdev(vif),
3882 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3883
6b20d774
LC		 3884 switch (vif->type) {
3885 case NL80211_IFTYPE_AP:
3886 csa_vif =
3887 rcu_dereference_protected(mvm->csa_vif,
3888 lockdep_is_held(&mvm->mutex));
3889 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3890 "Another CSA is already in progress")) {
3891 ret = -EBUSY;
3892 goto out_unlock;
3893 }
3894
d3a108a4
AO		 3895 /* we still didn't unblock tx. prevent new CS meanwhile */
3896 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3897 lockdep_is_held(&mvm->mutex))) {
3898 ret = -EBUSY;
3899 goto out_unlock;
3900 }
3901
6b20d774 3902 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3903
7ef0aab6
AO		 3904 if (WARN_ONCE(mvmvif->csa_countdown,
3905 "Previous CSA countdown didn't complete")) {
3906 ret = -EBUSY;
3907 goto out_unlock;
3908 }
3909
d3a108a4
AO		 3910 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3911
6b20d774 3912 break;
dc88b4ba 3913 case NL80211_IFTYPE_STATION:
03098268
AE		 3914 if (mvmvif->lqm_active)
3915 iwl_mvm_send_lqm_cmd(vif,
3916 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3917 0, 0);
3918
4500e133
LC		 3919 /* Schedule the time event to a bit before beacon 1,
3920 * to make sure we're in the new channel when the
3921 * GO/AP arrives.
3922 */
3923 apply_time = chsw->device_timestamp +
3924 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3925 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3926
3927 if (chsw->block_tx)
3928 iwl_mvm_csa_client_absent(mvm, vif);
3929
4500e133 3930 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3931 apply_time);
c6e0a3e0
LC		 3932 if (mvmvif->bf_data.bf_enabled) {
3933 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3934 if (ret)
3935 goto out_unlock;
3936 }
3937
dc88b4ba 3938 break;
6b20d774
LC		 3939 default:
3940 break;
3941 }
bd3398e2 3942
f6c34820
LC		 3943 mvmvif->ps_disabled = true;
3944
3945 ret = iwl_mvm_power_update_ps(mvm);
3946 if (ret)
3947 goto out_unlock;
f028905c 3948
e198f5e7
AN		 3949 /* we won't be on this channel any longer */
3950 iwl_mvm_teardown_tdls_peers(mvm);
3951
bd3398e2
AO		 3952out_unlock:
3953 mutex_unlock(&mvm->mutex);
f028905c
LC		 3954
3955 return ret;
bd3398e2
AO		 3956}
3957
f6c34820
LC		 3958static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3959 struct ieee80211_vif *vif)
3960{
3961 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3962 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3963 int ret;
3964
3965 mutex_lock(&mvm->mutex);
3966
81d62d5a
JB		 3967 if (mvmvif->csa_failed) {
3968 mvmvif->csa_failed = false;
3969 ret = -EIO;
3970 goto out_unlock;
3971 }
3972
a57c688d
LC		 3973 if (vif->type == NL80211_IFTYPE_STATION) {
3974 struct iwl_mvm_sta *mvmsta;
3975
3976 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3977 mvmvif->ap_sta_id);
3978
3979 if (WARN_ON(!mvmsta)) {
3980 ret = -EIO;
3981 goto out_unlock;
3982 }
3983
3984 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3985
3986 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3987
3988 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3989 if (ret)
3990 goto out_unlock;
686e7fe1
LC		 3991
3992 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3993 }
3994
f6c34820
LC		 3995 mvmvif->ps_disabled = false;
3996
3997 ret = iwl_mvm_power_update_ps(mvm);
3998
a57c688d 3999out_unlock:
f6c34820
LC		 4000 mutex_unlock(&mvm->mutex);
4001
4002 return ret;
4003}
4004
c5b0e7c0
EG		 4005static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4006 struct ieee80211_vif *vif, u32 queues, bool drop)
4007{
4008 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4009 struct iwl_mvm_vif *mvmvif;
4010 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 4011 struct ieee80211_sta *sta;
4012 int i;
4013 u32 msk = 0;
c5b0e7c0
EG		 4014
4015 if (!vif || vif->type != NL80211_IFTYPE_STATION)
4016 return;
4017
24afba76
LK		 4018 /* Make sure we're done with the deferred traffic before flushing */
4019 if (iwl_mvm_is_dqa_supported(mvm))
4020 flush_work(&mvm->add_stream_wk);
4021
c5b0e7c0
EG		 4022 mutex_lock(&mvm->mutex);
4023 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 4024
a0f6bf2a 4025 /* flush the AP-station and all TDLS peers */
0ae98812 4026 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN		 4027 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4028 lockdep_is_held(&mvm->mutex));
4029 if (IS_ERR_OR_NULL(sta))
4030 continue;
4031
4032 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4033 if (mvmsta->vif != vif)
4034 continue;
4035
4036 /* make sure only TDLS peers or the AP are flushed */
4037 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4038
d49394a1
SS		 4039 if (drop) {
4040 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4041 IWL_ERR(mvm, "flush request fail\n");
4042 } else {
4043 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS		 4044 if (iwl_mvm_has_new_tx_api(mvm))
4045 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4046 }
480acbce 4047 }
c5b0e7c0 4048
d49394a1 4049 mutex_unlock(&mvm->mutex);
4e6c48e0 4050
d49394a1
SS		 4051 /* this can take a while, and we may need/want other operations
4052 * to succeed while doing this, so do it without the mutex held
4053 */
d6d517b7 4054 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4055 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG		 4056}
4057
91a8bcde
JB		 4058static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4059 struct survey_info *survey)
4060{
4061 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4062 int ret;
4063
4064 memset(survey, 0, sizeof(*survey));
4065
4066 /* only support global statistics right now */
4067 if (idx != 0)
4068 return -ENOENT;
4069
280a3efa
JB		 4070 if (!fw_has_capa(&mvm->fw->ucode_capa,
4071 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 4072 return -ENOENT;
4073
4074 mutex_lock(&mvm->mutex);
4075
aab6930d 4076 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4077 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4078 if (ret)
4079 goto out;
4080 }
4081
4082 survey->filled = SURVEY_INFO_TIME |
4083 SURVEY_INFO_TIME_RX |
4084 SURVEY_INFO_TIME_TX |
4085 SURVEY_INFO_TIME_SCAN;
4086 survey->time = mvm->accu_radio_stats.on_time_rf +
4087 mvm->radio_stats.on_time_rf;
4088 do_div(survey->time, USEC_PER_MSEC);
4089
4090 survey->time_rx = mvm->accu_radio_stats.rx_time +
4091 mvm->radio_stats.rx_time;
4092 do_div(survey->time_rx, USEC_PER_MSEC);
4093
4094 survey->time_tx = mvm->accu_radio_stats.tx_time +
4095 mvm->radio_stats.tx_time;
4096 do_div(survey->time_tx, USEC_PER_MSEC);
4097
4098 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4099 mvm->radio_stats.on_time_scan;
4100 do_div(survey->time_scan, USEC_PER_MSEC);
4101
10a7c028 4102 ret = 0;
91a8bcde
JB		 4103 out:
4104 mutex_unlock(&mvm->mutex);
4105 return ret;
4106}
4107
33cef925
JB		 4108static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4109 struct ieee80211_vif *vif,
4110 struct ieee80211_sta *sta,
4111 struct station_info *sinfo)
4112{
4113 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4114 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4115 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4116
988b5968
SS		 4117 if (mvmsta->avg_energy) {
4118 sinfo->signal_avg = mvmsta->avg_energy;
4119 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4120 }
4121
280a3efa
JB		 4122 if (!fw_has_capa(&mvm->fw->ucode_capa,
4123 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4124 return;
4125
4126 /* if beacon filtering isn't on mac80211 does it anyway */
4127 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4128 return;
4129
4130 if (!vif->bss_conf.assoc)
4131 return;
4132
4133 mutex_lock(&mvm->mutex);
4134
4135 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4136 goto unlock;
4137
4138 if (iwl_mvm_request_statistics(mvm, false))
4139 goto unlock;
4140
4141 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4142 mvmvif->beacon_stats.accu_num_beacons;
4143 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4144 if (mvmvif->beacon_stats.avg_signal) {
4145 /* firmware only reports a value after RXing a few beacons */
4146 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4147 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4148 }
4149 unlock:
4150 mutex_unlock(&mvm->mutex);
4151}
4152
4203263d
EG		 4153static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4154 struct ieee80211_vif *vif,
4155 const struct ieee80211_event *event)
d42f5350 4156{
7174beb6
JB		 4157#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4158 do { \
4159 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4160 break; \
4161 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG		 4162 } while (0)
4163
d42f5350
EG		 4164 struct iwl_fw_dbg_trigger_tlv *trig;
4165 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4166
4167 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4168 return;
4169
d42f5350
EG		 4170 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4171 trig_mlme = (void *)trig->data;
7174beb6
JB		 4172 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4173 ieee80211_vif_to_wdev(vif), trig))
d42f5350
EG		 4174 return;
4175
d42f5350
EG		 4176 if (event->u.mlme.data == ASSOC_EVENT) {
4177 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4178 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG		 4179 "DENIED ASSOC: reason %d",
4180 event->u.mlme.reason);
4181 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4182 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG		 4183 "ASSOC TIMEOUT");
4184 } else if (event->u.mlme.data == AUTH_EVENT) {
4185 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4186 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG		 4187 "DENIED AUTH: reason %d",
4188 event->u.mlme.reason);
4189 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4190 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG		 4191 "AUTH TIMEOUT");
4192 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4193 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG		 4194 "DEAUTH RX %d", event->u.mlme.reason);
4195 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4196 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG		 4197 "DEAUTH TX %d", event->u.mlme.reason);
4198 }
4199#undef CHECK_MLME_TRIGGER
4200}
4201
4203263d
EG		 4202static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4203 struct ieee80211_vif *vif,
4204 const struct ieee80211_event *event)
4205{
4206 struct iwl_fw_dbg_trigger_tlv *trig;
4207 struct iwl_fw_dbg_trigger_ba *ba_trig;
4208
4209 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4210 return;
4211
4212 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4213 ba_trig = (void *)trig->data;
7174beb6
JB		 4214 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4215 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4216 return;
4217
4218 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4219 return;
4220
7174beb6
JB		 4221 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4222 "BAR received from %pM, tid %d, ssn %d",
4223 event->u.ba.sta->addr, event->u.ba.tid,
4224 event->u.ba.ssn);
4203263d
EG		 4225}
4226
4227static void
4228iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4229 struct ieee80211_vif *vif,
4230 const struct ieee80211_event *event)
4231{
4232 struct iwl_fw_dbg_trigger_tlv *trig;
4233 struct iwl_fw_dbg_trigger_ba *ba_trig;
4234
4235 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4236 return;
4237
4238 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4239 ba_trig = (void *)trig->data;
7174beb6
JB		 4240 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4241 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4242 return;
4243
4244 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4245 return;
4246
7174beb6
JB		 4247 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4248 "Frame from %pM timed out, tid %d",
4249 event->u.ba.sta->addr, event->u.ba.tid);
4203263d
EG		 4250}
4251
4252static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4253 struct ieee80211_vif *vif,
4254 const struct ieee80211_event *event)
4255{
4256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4257
4258 switch (event->type) {
4259 case MLME_EVENT:
4260 iwl_mvm_event_mlme_callback(mvm, vif, event);
4261 break;
4262 case BAR_RX_EVENT:
4263 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4264 break;
4265 case BA_FRAME_TIMEOUT:
4266 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4267 break;
4268 default:
4269 break;
4270 }
4271}
4272
d0ff5d22
SS		 4273void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4274 struct iwl_mvm_internal_rxq_notif *notif,
4275 u32 size)
0636b938 4276{
0636b938
SS		 4277 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4278 int ret;
4279
4280 lockdep_assert_held(&mvm->mutex);
4281
bc029469 4282 /* TODO - remove a000 disablement when we have RXQ config API */
c8c017a6
JB		 4283 if (!iwl_mvm_has_new_rx_api(mvm) ||
4284 mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000)
0636b938
SS		 4285 return;
4286
d0ff5d22
SS		 4287 notif->cookie = mvm->queue_sync_cookie;
4288
4289 if (notif->sync)
4290 atomic_set(&mvm->queue_sync_counter,
4291 mvm->trans->num_rx_queues);
0636b938 4292
d0ff5d22 4293 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4294 if (ret) {
4295 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4296 goto out;
4297 }
d0ff5d22 4298
6ad04359 4299 if (notif->sync) {
3a732c65 4300 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB		 4301 atomic_read(&mvm->queue_sync_counter) == 0 ||
4302 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4303 HZ);
6ad04359
JB		 4304 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4305 }
0636b938
SS		 4306
4307out:
4308 atomic_set(&mvm->queue_sync_counter, 0);
4309 mvm->queue_sync_cookie++;
4310}
4311
4312static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4313{
4314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4315 struct iwl_mvm_internal_rxq_notif data = {
4316 .type = IWL_MVM_RXQ_EMPTY,
4317 .sync = 1,
4318 };
0636b938
SS		 4319
4320 mutex_lock(&mvm->mutex);
d0ff5d22 4321 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4322 mutex_unlock(&mvm->mutex);
4323}
4324
e5209263 4325const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4326 .tx = iwl_mvm_mac_tx,
4327 .ampdu_action = iwl_mvm_mac_ampdu_action,
4328 .start = iwl_mvm_mac_start,
cf2c92d8 4329 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4330 .stop = iwl_mvm_mac_stop,
4331 .add_interface = iwl_mvm_mac_add_interface,
4332 .remove_interface = iwl_mvm_mac_remove_interface,
4333 .config = iwl_mvm_mac_config,
e59647ea 4334 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4335 .configure_filter = iwl_mvm_configure_filter,
effd1929 4336 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4337 .bss_info_changed = iwl_mvm_bss_info_changed,
4338 .hw_scan = iwl_mvm_mac_hw_scan,
4339 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4340 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4341 .sta_state = iwl_mvm_mac_sta_state,
4342 .sta_notify = iwl_mvm_mac_sta_notify,
4343 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4344 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4345 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4346 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4347 .conf_tx = iwl_mvm_mac_conf_tx,
4348 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4349 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4350 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4351 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4352 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4353 .set_key = iwl_mvm_mac_set_key,
4354 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4355 .remain_on_channel = iwl_mvm_roc,
4356 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4357 .add_chanctx = iwl_mvm_add_chanctx,
4358 .remove_chanctx = iwl_mvm_remove_chanctx,
4359 .change_chanctx = iwl_mvm_change_chanctx,
4360 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4361 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4362 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4363
5023d966
JB		 4364 .start_ap = iwl_mvm_start_ap_ibss,
4365 .stop_ap = iwl_mvm_stop_ap_ibss,
4366 .join_ibss = iwl_mvm_start_ap_ibss,
4367 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4368
2f0282db
JB		 4369 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4370
8ca151b5
JB		 4371 .set_tim = iwl_mvm_set_tim,
4372
622e3f9b 4373 .channel_switch = iwl_mvm_channel_switch,
f028905c 4374 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4375 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4376
1d3c3f63
AN		 4377 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4378 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4379 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4380
d42f5350
EG		 4381 .event_callback = iwl_mvm_mac_event_callback,
4382
0636b938
SS		 4383 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4384
507cadf2
DS		 4385 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4386
8ca151b5
JB		 4387#ifdef CONFIG_PM_SLEEP
4388 /* look at d3.c */
4389 .suspend = iwl_mvm_suspend,
4390 .resume = iwl_mvm_resume,
4391 .set_wakeup = iwl_mvm_set_wakeup,
4392 .set_rekey_data = iwl_mvm_set_rekey_data,
4393#if IS_ENABLED(CONFIG_IPV6)
4394 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4395#endif
4396 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4397#endif
91a8bcde 4398 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4399 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4400};
Linux 6.x block layer and io_uring tree(s)