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iwlwifi: mvm: wake the correct mac80211 queue
[linux-block.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
410dc5aa 27 * in the file called COPYING.
8ca151b5
JB		 28 *
29 * Contact Information:
cb2f8277 30 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
51368bf7 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67#include <linux/kernel.h>
68#include <linux/slab.h>
69#include <linux/skbuff.h>
70#include <linux/netdevice.h>
71#include <linux/etherdevice.h>
f0c2646a 72#include <linux/ip.h>
2ee8f021 73#include <linux/if_arp.h>
2f89a5d7 74#include <linux/time.h>
8ca151b5 75#include <net/mac80211.h>
7b1dd048 76#include <net/ieee80211_radiotap.h>
f0c2646a 77#include <net/tcp.h>
8ca151b5
JB		 78
79#include "iwl-op-mode.h"
80#include "iwl-io.h"
81#include "mvm.h"
82#include "sta.h"
83#include "time-event.h"
84#include "iwl-eeprom-parse.h"
8ca151b5 85#include "iwl-phy-db.h"
507cadf2 86#include "testmode.h"
d962f9b1 87#include "fw/error-dump.h"
655e6d6d 88#include "iwl-prph.h"
88931cc9 89#include "iwl-nvm-parse.h"
8ca151b5
JB		 90
91static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 {
93 .max = 1,
8eb38710 94 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 95 },
3c15a0fb
JB		 96 {
97 .max = 1,
8eb38710
IP		 98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 100 BIT(NL80211_IFTYPE_P2P_GO),
101 },
102 {
103 .max = 1,
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 },
8ca151b5
JB		 106};
107
108static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 {
2624a5ca 110 .num_different_channels = 2,
8ca151b5
JB		 111 .max_interfaces = 3,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 },
115};
116
f0c2646a
JB		 117#ifdef CONFIG_PM_SLEEP
118static const struct nl80211_wowlan_tcp_data_token_feature
119iwl_mvm_wowlan_tcp_token_feature = {
120 .min_len = 0,
121 .max_len = 255,
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123};
124
125static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
136 .seq = true,
137};
138#endif
139
77736923 140#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 141/*
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
148 * be skipped.
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
151 */
152enum {
153 BC_FILTER_MAGIC_NONE = 0,
154 BC_FILTER_MAGIC_IP,
155 BC_FILTER_MAGIC_MAC,
156};
157
77736923
EP		 158static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 {
160 /* arp */
161 .discard = 0,
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 .attrs = {
164 {
165 /* frame type - arp, hw type - ethernet */
166 .offset_type =
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
171 },
2ee8f021
EP		 172 {
173 /* arp dest ip */
174 .offset_type =
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
179 ETH_ALEN,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
183 },
184 },
185 },
186 {
187 /* dhcp offer bcast */
188 .discard = 0,
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 .attrs = {
191 {
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
197 },
198 {
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .offset = 38,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 },
77736923
EP		 206 },
207 },
208 /* last filter must be empty */
209 {},
210};
211#endif
212
7498cf4c
EP		 213void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214{
7bb426ea 215 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 216 return;
217
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 222 iwl_trans_ref(mvm->trans);
223}
224
225void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226{
7bb426ea 227 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 228 return;
229
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9 231 spin_lock_bh(&mvm->refs_lock);
16c45822
SS		 232 if (WARN_ON(!mvm->refs[ref_type])) {
233 spin_unlock_bh(&mvm->refs_lock);
234 return;
235 }
236 mvm->refs[ref_type]--;
576eeee9 237 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 238 iwl_trans_unref(mvm->trans);
239}
240
576eeee9
EP		 241static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
242 enum iwl_mvm_ref_type except_ref)
7498cf4c 243{
576eeee9 244 int i, j;
7498cf4c 245
7bb426ea 246 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 247 return;
248
576eeee9
EP		 249 spin_lock_bh(&mvm->refs_lock);
250 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
251 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 252 continue;
253
576eeee9
EP		 254 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
255 i, mvm->refs[i]);
256 for (j = 0; j < mvm->refs[i]; j++)
257 iwl_trans_unref(mvm->trans);
258 mvm->refs[i] = 0;
7498cf4c 259 }
576eeee9 260 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 261}
262
f4cf8680
EP		 263bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
264{
265 int i;
266 bool taken = false;
267
268 if (!iwl_mvm_is_d0i3_supported(mvm))
269 return true;
270
271 spin_lock_bh(&mvm->refs_lock);
272 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
273 if (mvm->refs[i]) {
274 taken = true;
275 break;
276 }
277 }
278 spin_unlock_bh(&mvm->refs_lock);
279
280 return taken;
281}
282
576eeee9 283int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 284{
285 iwl_mvm_ref(mvm, ref_type);
286
287 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
288 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
289 HZ)) {
290 WARN_ON_ONCE(1);
291 iwl_mvm_unref(mvm, ref_type);
292 return -EIO;
293 }
294
295 return 0;
296}
297
fe0f2de3
IP		 298static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
299{
300 int i;
301
302 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
303 for (i = 0; i < NUM_PHY_CTX; i++) {
304 mvm->phy_ctxts[i].id = i;
305 mvm->phy_ctxts[i].ref = 0;
306 }
307}
308
88931cc9 309struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 310 const char *alpha2,
47c8b154
JD		 311 enum iwl_mcc_source src_id,
312 bool *changed)
88931cc9
AN		 313{
314 struct ieee80211_regdomain *regd = NULL;
315 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
317 struct iwl_mcc_update_resp *resp;
318
319 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
320
8ba2d7a1 321 lockdep_assert_held(&mvm->mutex);
88931cc9 322
8ba2d7a1 323 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 324 if (IS_ERR_OR_NULL(resp)) {
325 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 326 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 327 goto out;
88931cc9
AN		 328 }
329
47c8b154
JD		 330 if (changed)
331 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
332
162ee3c9 333 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 334 __le32_to_cpu(resp->n_channels),
335 resp->channels,
336 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 337 /* Store the return source id */
338 src_id = resp->source_id;
88931cc9
AN		 339 kfree(resp);
340 if (IS_ERR_OR_NULL(regd)) {
341 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 342 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 343 goto out;
88931cc9
AN		 344 }
345
8ba2d7a1
EH		 346 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
347 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 348 mvm->lar_regdom_set = true;
8ba2d7a1 349 mvm->mcc_src = src_id;
88931cc9 350
8ba2d7a1 351out:
88931cc9
AN		 352 return regd;
353}
354
47c8b154
JD		 355void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
356{
357 bool changed;
358 struct ieee80211_regdomain *regd;
359
360 if (!iwl_mvm_is_lar_supported(mvm))
361 return;
362
363 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
364 if (!IS_ERR_OR_NULL(regd)) {
365 /* only update the regulatory core if changed */
366 if (changed)
367 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
368
369 kfree(regd);
370 }
371}
372
373struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
374 bool *changed)
8ba2d7a1
EH		 375{
376 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
377 iwl_mvm_is_wifi_mcc_supported(mvm) ?
378 MCC_SOURCE_GET_CURRENT :
47c8b154 379 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 380}
381
382int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
383{
384 enum iwl_mcc_source used_src;
385 struct ieee80211_regdomain *regd;
b6e160ab
AN		 386 int ret;
387 bool changed;
8ba2d7a1
EH		 388 const struct ieee80211_regdomain *r =
389 rtnl_dereference(mvm->hw->wiphy->regd);
390
391 if (!r)
b6e160ab 392 return -ENOENT;
8ba2d7a1
EH		 393
394 /* save the last source in case we overwrite it below */
395 used_src = mvm->mcc_src;
396 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
397 /* Notify the firmware we support wifi location updates */
47c8b154 398 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 399 if (!IS_ERR_OR_NULL(regd))
400 kfree(regd);
401 }
402
403 /* Now set our last stored MCC and source */
b6e160ab
AN		 404 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
405 &changed);
8ba2d7a1
EH		 406 if (IS_ERR_OR_NULL(regd))
407 return -EIO;
408
b6e160ab
AN		 409 /* update cfg80211 if the regdomain was changed */
410 if (changed)
411 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
412 else
413 ret = 0;
8ba2d7a1 414
b6e160ab
AN		 415 kfree(regd);
416 return ret;
8ba2d7a1
EH		 417}
418
8ca151b5
JB		 419int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
420{
421 struct ieee80211_hw *hw = mvm->hw;
831e85f3 422 int num_mac, ret, i;
5f4c02e2
JB		 423 static const u32 mvm_ciphers[] = {
424 WLAN_CIPHER_SUITE_WEP40,
425 WLAN_CIPHER_SUITE_WEP104,
426 WLAN_CIPHER_SUITE_TKIP,
427 WLAN_CIPHER_SUITE_CCMP,
428 };
8ca151b5
JB		 429
430 /* Tell mac80211 our characteristics */
30686bf7
JB		 431 ieee80211_hw_set(hw, SIGNAL_DBM);
432 ieee80211_hw_set(hw, SPECTRUM_MGMT);
433 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
434 ieee80211_hw_set(hw, QUEUE_CONTROL);
435 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
436 ieee80211_hw_set(hw, SUPPORTS_PS);
437 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
438 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
439 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
440 ieee80211_hw_set(hw, CONNECTION_MONITOR);
441 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
442 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
443 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 444 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 445 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
b915c101
SS		 446 if (iwl_mvm_has_new_rx_api(mvm))
447 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
960f864b
JB		 448
449 if (fw_has_capa(&mvm->fw->ucode_capa,
450 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
65e25482 451 ieee80211_hw_set(hw, AP_LINK_PS);
960f864b
JB		 452 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
453 /*
454 * we absolutely need this for the new TX API since that comes
455 * with many more queues than the current code can deal with
456 * for station powersave
457 */
458 return -EINVAL;
459 }
8ca151b5 460
80938abc
JB		 461 if (mvm->trans->num_rx_queues > 1)
462 ieee80211_hw_set(hw, USES_RSS);
463
2d7cf549
JB		 464 if (mvm->trans->max_skb_frags)
465 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
466
c8f54701 467 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 468 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 469 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
470 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 471 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
472 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB		 473
474 hw->radiotap_timestamp.units_pos =
475 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
476 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
477 /* this is the case for CCK frames, it's better (only 8) for OFDM */
478 hw->radiotap_timestamp.accuracy = 22;
479
8ca151b5 480 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 481 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
482 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 483
8e160ab8 484 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 485 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
486 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
487 hw->wiphy->cipher_suites = mvm->ciphers;
488
2a53d166
AB		 489 if (iwl_mvm_has_new_rx_api(mvm)) {
490 mvm->ciphers[hw->wiphy->n_cipher_suites] =
491 WLAN_CIPHER_SUITE_GCMP;
492 hw->wiphy->n_cipher_suites++;
493 mvm->ciphers[hw->wiphy->n_cipher_suites] =
494 WLAN_CIPHER_SUITE_GCMP_256;
495 hw->wiphy->n_cipher_suites++;
496 }
497
4b87e5af
LC		 498 /* Enable 11w if software crypto is not enabled (as the
499 * firmware will interpret some mgmt packets, so enabling it
500 * with software crypto isn't safe).
8ca151b5 501 */
3b37f4c9 502 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 503 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 504 mvm->ciphers[hw->wiphy->n_cipher_suites] =
505 WLAN_CIPHER_SUITE_AES_CMAC;
506 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 507 if (iwl_mvm_has_new_rx_api(mvm)) {
508 mvm->ciphers[hw->wiphy->n_cipher_suites] =
509 WLAN_CIPHER_SUITE_BIP_GMAC_128;
510 hw->wiphy->n_cipher_suites++;
511 mvm->ciphers[hw->wiphy->n_cipher_suites] =
512 WLAN_CIPHER_SUITE_BIP_GMAC_256;
513 hw->wiphy->n_cipher_suites++;
514 }
5f4c02e2
JB		 515 }
516
517 /* currently FW API supports only one optional cipher scheme */
518 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 519 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
520 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
521
5f4c02e2 522 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 523
524 cs->cipher = le32_to_cpu(fwcs->cipher);
525 cs->iftype = BIT(NL80211_IFTYPE_STATION);
526 cs->hdr_len = fwcs->hdr_len;
527 cs->pn_len = fwcs->pn_len;
528 cs->pn_off = fwcs->pn_off;
529 cs->key_idx_off = fwcs->key_idx_off;
530 cs->key_idx_mask = fwcs->key_idx_mask;
531 cs->key_idx_shift = fwcs->key_idx_shift;
532 cs->mic_len = fwcs->mic_len;
533
534 mvm->hw->cipher_schemes = mvm->cs;
535 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 536 hw->wiphy->n_cipher_suites++;
537 }
8ca151b5 538
30686bf7 539 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 540 hw->wiphy->features |=
541 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 542 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
543 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 544
8ca151b5
JB		 545 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
546 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 547 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 548
549 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 550 BIT(NL80211_IFTYPE_P2P_CLIENT) |
551 BIT(NL80211_IFTYPE_AP) |
552 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 553 BIT(NL80211_IFTYPE_P2P_DEVICE) |
554 BIT(NL80211_IFTYPE_ADHOC);
5023d966 555
a2f73b6c 556 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 557 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
558 if (iwl_mvm_is_lar_supported(mvm))
559 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
560 else
561 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
562 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 563
4b87e5af 564 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 565 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 566
8ca151b5
JB		 567 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
568 hw->wiphy->n_iface_combinations =
569 ARRAY_SIZE(iwl_mvm_iface_combinations);
570
c451e6d4 571 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 572 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 573 /* we can compensate an offset of up to 3 channels = 15 MHz */
574 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 575
576 /* Extract MAC address */
577 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
578 hw->wiphy->addresses = mvm->addresses;
579 hw->wiphy->n_addresses = 1;
831e85f3
IP		 580
581 /* Extract additional MAC addresses if available */
582 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
583 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
584
585 for (i = 1; i < num_mac; i++) {
586 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 587 ETH_ALEN);
831e85f3 588 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 589 hw->wiphy->n_addresses++;
590 }
591
fe0f2de3
IP		 592 iwl_mvm_reset_phy_ctxts(mvm);
593
999d2568 594 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 595
8ca151b5
JB		 596 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
597
c7d42480 598 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 599 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
600 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
601
859d914c 602 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 603 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
604 else
605 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
606
57fbcce3
JB		 607 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
608 hw->wiphy->bands[NL80211_BAND_2GHZ] =
609 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
610 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
611 hw->wiphy->bands[NL80211_BAND_5GHZ] =
612 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 613
859d914c
JB		 614 if (fw_has_capa(&mvm->fw->ucode_capa,
615 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
616 fw_has_api(&mvm->fw->ucode_capa,
617 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 618 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 619 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
620 }
621
8ca151b5
JB		 622 hw->wiphy->hw_version = mvm->trans->hw_id;
623
ade50652 624 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 625 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
626 else
627 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
628
ca986ad9 629 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG		 630 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
631 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
632 /* we create the 802.11 header and zero length SSID IE. */
633 hw->wiphy->max_sched_scan_ie_len =
634 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 635 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
636 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
637
638 /*
639 * the firmware uses u8 for num of iterations, but 0xff is saved for
640 * infinite loop, so the maximum number of iterations is actually 254.
641 */
642 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 643
8ca151b5 644 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 645 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 646 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 647 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 648 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 649 NL80211_FEATURE_STATIC_SMPS |
650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 651
859d914c
JB		 652 if (fw_has_capa(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 654 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 655 if (fw_has_capa(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 657 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 658
859d914c
JB		 659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 661 hw->wiphy->features |=
662 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
663
859d914c
JB		 664 if (fw_has_capa(&mvm->fw->ucode_capa,
665 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 666 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
667
aacf8f18
AS		 668 if (fw_has_api(&mvm->fw->ucode_capa,
669 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
670 wiphy_ext_feature_set(hw->wiphy,
671 NL80211_EXT_FEATURE_SCAN_START_TIME);
672 wiphy_ext_feature_set(hw->wiphy,
673 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
674 wiphy_ext_feature_set(hw->wiphy,
675 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
676 }
677
8ca151b5
JB		 678 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
679
680#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 681 if (iwl_mvm_is_d0i3_supported(mvm) &&
682 device_can_wakeup(mvm->trans->dev)) {
683 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
684 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 685 }
686
eef187a7 687 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB		 688 mvm->trans->ops->d3_suspend &&
689 mvm->trans->ops->d3_resume &&
690 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 691 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
692 WIPHY_WOWLAN_DISCONNECT |
693 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
694 WIPHY_WOWLAN_RFKILL_RELEASE |
695 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 696 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB		 697 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
698 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
699 WIPHY_WOWLAN_4WAY_HANDSHAKE;
700
701 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
702 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
703 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 704 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 705 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
706 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 707 }
708#endif
709
77736923
EP		 710#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
711 /* assign default bcast filtering configuration */
712 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
713#endif
714
8ca151b5
JB		 715 ret = iwl_mvm_leds_init(mvm);
716 if (ret)
717 return ret;
718
859d914c
JB		 719 if (fw_has_capa(&mvm->fw->ucode_capa,
720 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 721 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
722 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 723 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 724 }
725
859d914c
JB		 726 if (fw_has_capa(&mvm->fw->ucode_capa,
727 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 728 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
729 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
730 }
731
93190fb0 732 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 733 if (!iwl_mvm_is_csum_supported(mvm)) {
734 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
735 NETIF_F_RXCSUM);
736 /* We may support SW TX CSUM */
737 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
738 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
739 }
41837ca9 740
b7327d89
EG		 741 ret = ieee80211_register_hw(mvm->hw);
742 if (ret)
743 iwl_mvm_leds_exit(mvm);
de8ba41b 744 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 745
91b08c2d
AE		 746 if (mvm->cfg->vht_mu_mimo_supported)
747 wiphy_ext_feature_set(hw->wiphy,
748 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
749
b7327d89 750 return ret;
8ca151b5
JB		 751}
752
b2492501
AN		 753static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
754 struct ieee80211_sta *sta,
755 struct sk_buff *skb)
756{
757 struct iwl_mvm_sta *mvmsta;
758 bool defer = false;
759
760 /*
761 * double check the IN_D0I3 flag both before and after
762 * taking the spinlock, in order to prevent taking
763 * the spinlock when not needed.
764 */
765 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
766 return false;
767
768 spin_lock(&mvm->d0i3_tx_lock);
769 /*
770 * testing the flag again ensures the skb dequeue
771 * loop (on d0i3 exit) hasn't run yet.
772 */
773 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
774 goto out;
775
776 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 777 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN		 778 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
779 goto out;
780
781 __skb_queue_tail(&mvm->d0i3_tx, skb);
782 ieee80211_stop_queues(mvm->hw);
783
784 /* trigger wakeup */
785 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
786 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
787
788 defer = true;
789out:
790 spin_unlock(&mvm->d0i3_tx_lock);
791 return defer;
792}
793
8ca151b5
JB		 794static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
795 struct ieee80211_tx_control *control,
796 struct sk_buff *skb)
797{
798 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 799 struct ieee80211_sta *sta = control->sta;
800 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
801 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 802
9ee718aa
EL		 803 if (iwl_mvm_is_radio_killed(mvm)) {
804 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 805 goto drop;
806 }
807
d20e30af 808 if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 809 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
810 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 811 goto drop;
812
eb045e6e
DS		 813 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
814 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
815 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
816 ieee80211_is_mgmt(hdr->frame_control) &&
817 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
3e56eadf
JB		 818 sta = NULL;
819
820 if (sta) {
b2492501
AN		 821 if (iwl_mvm_defer_tx(mvm, sta, skb))
822 return;
3e56eadf 823 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 824 goto drop;
825 return;
826 }
827
828 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
829 goto drop;
830 return;
831 drop:
832 ieee80211_free_txskb(hw, skb);
833}
834
205e2210
EG		 835static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
836{
837 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
838 return false;
839 return true;
840}
841
842static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
843{
844 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
845 return false;
846 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
847 return true;
848
849 /* enabled by default */
850 return true;
851}
852
7174beb6
JB		 853#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
854 do { \
855 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
856 break; \
857 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG		 858 } while (0)
859
860static void
861iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
862 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
863 enum ieee80211_ampdu_mlme_action action)
864{
865 struct iwl_fw_dbg_trigger_tlv *trig;
866 struct iwl_fw_dbg_trigger_ba *ba_trig;
867
868 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
869 return;
870
871 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
872 ba_trig = (void *)trig->data;
873
7174beb6
JB		 874 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
875 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 876 return;
877
878 switch (action) {
879 case IEEE80211_AMPDU_TX_OPERATIONAL: {
880 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
881 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
882
883 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
884 "TX AGG START: MAC %pM tid %d ssn %d\n",
885 sta->addr, tid, tid_data->ssn);
886 break;
887 }
888 case IEEE80211_AMPDU_TX_STOP_CONT:
889 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
890 "TX AGG STOP: MAC %pM tid %d\n",
891 sta->addr, tid);
892 break;
893 case IEEE80211_AMPDU_RX_START:
894 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
895 "RX AGG START: MAC %pM tid %d ssn %d\n",
896 sta->addr, tid, rx_ba_ssn);
897 break;
898 case IEEE80211_AMPDU_RX_STOP:
899 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
900 "RX AGG STOP: MAC %pM tid %d\n",
901 sta->addr, tid);
902 break;
903 default:
904 break;
905 }
906}
907
8ca151b5
JB		 908static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
909 struct ieee80211_vif *vif,
50ea05ef 910 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 911{
912 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
913 int ret;
b2492501 914 bool tx_agg_ref = false;
50ea05ef
SS		 915 struct ieee80211_sta *sta = params->sta;
916 enum ieee80211_ampdu_mlme_action action = params->action;
917 u16 tid = params->tid;
918 u16 *ssn = &params->ssn;
919 u8 buf_size = params->buf_size;
bb81bb68 920 bool amsdu = params->amsdu;
10b2b201 921 u16 timeout = params->timeout;
8ca151b5
JB		 922
923 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
924 sta->addr, tid, action);
925
926 if (!(mvm->nvm_data->sku_cap_11n_enable))
927 return -EACCES;
928
b2492501 929 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 930 switch (action) {
931 case IEEE80211_AMPDU_TX_START:
932 case IEEE80211_AMPDU_TX_STOP_CONT:
933 case IEEE80211_AMPDU_TX_STOP_FLUSH:
934 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
935 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 936 /*
9256c205
EP		 937 * for tx start, wait synchronously until D0i3 exit to
938 * get the correct sequence number for the tid.
939 * additionally, some other ampdu actions use direct
940 * target access, which is not handled automatically
941 * by the trans layer (unlike commands), so wait for
942 * d0i3 exit in these cases as well.
b2492501 943 */
d40fc489
GG		 944 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
945 if (ret)
946 return ret;
947
948 tx_agg_ref = true;
9256c205
EP		 949 break;
950 default:
951 break;
b2492501
AN		 952 }
953
8ca151b5
JB		 954 mutex_lock(&mvm->mutex);
955
956 switch (action) {
957 case IEEE80211_AMPDU_RX_START:
205e2210 958 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 959 ret = -EINVAL;
960 break;
961 }
10b2b201
SS		 962 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
963 timeout);
8ca151b5
JB		 964 break;
965 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 966 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
967 timeout);
8ca151b5
JB		 968 break;
969 case IEEE80211_AMPDU_TX_START:
205e2210 970 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 971 ret = -EINVAL;
972 break;
973 }
8ca151b5
JB		 974 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
975 break;
976 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 977 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
978 break;
8ca151b5
JB		 979 case IEEE80211_AMPDU_TX_STOP_FLUSH:
980 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 981 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 982 break;
983 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 984 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
985 buf_size, amsdu);
8ca151b5
JB		 986 break;
987 default:
988 WARN_ON_ONCE(1);
989 ret = -EINVAL;
990 break;
991 }
4203263d
EG		 992
993 if (!ret) {
994 u16 rx_ba_ssn = 0;
995
996 if (action == IEEE80211_AMPDU_RX_START)
997 rx_ba_ssn = *ssn;
998
999 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1000 rx_ba_ssn, action);
1001 }
8ca151b5
JB		 1002 mutex_unlock(&mvm->mutex);
1003
b2492501
AN		 1004 /*
1005 * If the tid is marked as started, we won't use it for offloaded
1006 * traffic on the next D0i3 entry. It's safe to unref.
1007 */
1008 if (tx_agg_ref)
1009 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1010
8ca151b5
JB		 1011 return ret;
1012}
1013
1014static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1015 struct ieee80211_vif *vif)
1016{
1017 struct iwl_mvm *mvm = data;
1018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1019
1020 mvmvif->uploaded = false;
0ae98812 1021 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1022
8ca151b5
JB		 1023 spin_lock_bh(&mvm->time_event_lock);
1024 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1025 spin_unlock_bh(&mvm->time_event_lock);
1026
fe0f2de3 1027 mvmvif->phy_ctxt = NULL;
8a275bad 1028 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1029}
1030
1031static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1032{
58629d9d
JB		 1033 /* clear the D3 reconfig, we only need it to avoid dumping a
1034 * firmware coredump on reconfiguration, we shouldn't do that
1035 * on D3->D0 transition
1036 */
b6eaa45a 1037 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB		 1038 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1039 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1040 }
1bd3cbc1 1041
744cb695
EP		 1042 /* cleanup all stale references (scan, roc), but keep the
1043 * ucode_down ref until reconfig is complete
1044 */
1045 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1046
fcb6b92a 1047 iwl_mvm_stop_device(mvm);
8ca151b5 1048
9af91f46 1049 mvm->scan_status = 0;
b1873300 1050 mvm->ps_disabled = false;
31b8b343 1051 mvm->calibrating = false;
8ca151b5
JB		 1052
1053 /* just in case one was running */
305d236e 1054 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1055 ieee80211_remain_on_channel_expired(mvm->hw);
1056
737719fe
AN		 1057 /*
1058 * cleanup all interfaces, even inactive ones, as some might have
1059 * gone down during the HW restart
1060 */
1061 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1062
fe0f2de3 1063 mvm->p2p_device_vif = NULL;
0ae98812 1064 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP		 1065
1066 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1067 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
24afba76 1068 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
8a275bad 1069 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1070 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1071
1072 ieee80211_wake_queues(mvm->hw);
1073
228670b2
EP		 1074 /* clear any stale d0i3 state */
1075 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1076
8ca151b5 1077 mvm->vif_count = 0;
113a0447 1078 mvm->rx_ba_sessions = 0;
7174beb6 1079 mvm->fwrt.dump.conf = FW_DBG_INVALID;
91a8bcde
JB		 1080
1081 /* keep statistics ticking */
1082 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1083}
1084
a0a09243 1085int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1086{
8ca151b5
JB		 1087 int ret;
1088
a0a09243 1089 lockdep_assert_held(&mvm->mutex);
8ca151b5 1090
bf8b286f
JB		 1091 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1092 /*
1093 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1094 * so later code will - from now on - see that we're doing it.
1095 */
1096 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1097 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
a42b2af3 1098 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1099 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1100 } else {
1101 /* Hold the reference to prevent runtime suspend while
1102 * the start procedure runs. It's a bit confusing
1103 * that the UCODE_DOWN reference is taken, but it just
1104 * means "UCODE is not UP yet". ( TODO: rename this
1105 * reference).
1106 */
1107 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1108 }
8ca151b5 1109 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1110
1111 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1112 /* Something went wrong - we need to finish some cleanup
1113 * that normally iwl_mvm_mac_restart_complete() below
1114 * would do.
1115 */
1116 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1117 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1118 }
1119
a0a09243
LC		 1120 return ret;
1121}
1122
1123static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1124{
1125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1126 int ret;
1127
37948fcf
EP		 1128 /* Some hw restart cleanups must not hold the mutex */
1129 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1130 /*
1131 * Make sure we are out of d0i3. This is needed
1132 * to make sure the reference accounting is correct
1133 * (and there is no stale d0i3_exit_work).
1134 */
1135 wait_event_timeout(mvm->d0i3_exit_waitq,
1136 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1137 &mvm->status),
1138 HZ);
1139 }
1140
a0a09243
LC		 1141 mutex_lock(&mvm->mutex);
1142 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1143 mutex_unlock(&mvm->mutex);
1144
1145 return ret;
1146}
1147
cf2c92d8 1148static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1149{
8ca151b5
JB		 1150 int ret;
1151
1152 mutex_lock(&mvm->mutex);
1153
1154 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1155 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1156 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1157 if (ret)
1158 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1159 ret);
1160
7498cf4c
EP		 1161 /* allow transport/FW low power modes */
1162 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1163
cbd2ae2d
AN		 1164 /*
1165 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1166 * of packets the FW sent out, so we must reconnect.
1167 */
1168 iwl_mvm_teardown_tdls_peers(mvm);
1169
8ca151b5
JB		 1170 mutex_unlock(&mvm->mutex);
1171}
1172
088070a2
EP		 1173static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1174{
b7282643
LC		 1175 if (iwl_mvm_is_d0i3_supported(mvm) &&
1176 iwl_mvm_enter_d0i3_on_suspend(mvm))
1177 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1178 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1179 &mvm->status),
1180 HZ),
1181 "D0i3 exit on resume timed out\n");
088070a2
EP		 1182}
1183
cf2c92d8
EP		 1184static void
1185iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1186 enum ieee80211_reconfig_type reconfig_type)
1187{
1188 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1189
1190 switch (reconfig_type) {
1191 case IEEE80211_RECONFIG_TYPE_RESTART:
1192 iwl_mvm_restart_complete(mvm);
1193 break;
1194 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1195 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1196 break;
1197 }
1198}
1199
a0a09243 1200void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1201{
a0a09243 1202 lockdep_assert_held(&mvm->mutex);
7498cf4c 1203
91a8bcde
JB		 1204 /* firmware counters are obviously reset now, but we shouldn't
1205 * partially track so also clear the fw_reset_accu counters.
1206 */
1207 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1208
8ca151b5
JB		 1209 /* async_handlers_wk is now blocked */
1210
1211 /*
1212 * The work item could be running or queued if the
1213 * ROC time event stops just as we get here.
1214 */
c779273b 1215 flush_work(&mvm->roc_done_wk);
8ca151b5 1216
fcb6b92a 1217 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1218
1219 iwl_mvm_async_handlers_purge(mvm);
1220 /* async_handlers_list is empty and will stay empty: HW is stopped */
1221
1222 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1223 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1224
0a79a0c0
EP		 1225 /*
1226 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1227 * won't be called in this case).
8b2b9fbf
AN		 1228 * But make sure to cleanup interfaces that have gone down before/during
1229 * HW restart was requested.
0a79a0c0 1230 */
8b2b9fbf
AN		 1231 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1232 ieee80211_iterate_interfaces(mvm->hw, 0,
1233 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1234
963221be
AB		 1235 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1236 * make sure there's nothing left there and warn if any is found.
1237 */
859d914c 1238 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1239 int i;
1240
507e4cda 1241 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1242 if (WARN_ONCE(mvm->scan_uid_status[i],
1243 "UMAC scan UID %d status was not cleaned\n",
1244 i))
1245 mvm->scan_uid_status[i] = 0;
963221be
AB		 1246 }
1247 }
a0a09243 1248}
bc44886d 1249
a0a09243
LC		 1250static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1251{
1252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1253
1254 flush_work(&mvm->d0i3_exit_work);
1255 flush_work(&mvm->async_handlers_wk);
24afba76 1256 flush_work(&mvm->add_stream_wk);
771147b0
JB		 1257
1258 /*
1259 * Lock and clear the firmware running bit here already, so that
1260 * new commands coming in elsewhere, e.g. from debugfs, will not
1261 * be able to proceed. This is important here because one of those
7174beb6 1262 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB		 1263 * don't stop debugfs accesses before canceling that it could be
1264 * retriggered after we flush it but before we've cleared the bit.
1265 */
1266 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1267
7174beb6 1268 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1269 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1270 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1271 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC		 1272
1273 mutex_lock(&mvm->mutex);
1274 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1275 mutex_unlock(&mvm->mutex);
1276
1277 /*
1278 * The worker might have been waiting for the mutex, let it run and
1279 * discover that its list is now empty.
1280 */
1281 cancel_work_sync(&mvm->async_handlers_wk);
1282}
1283
fe0f2de3
IP		 1284static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1285{
1286 u16 i;
1287
1288 lockdep_assert_held(&mvm->mutex);
1289
1290 for (i = 0; i < NUM_PHY_CTX; i++)
1291 if (!mvm->phy_ctxts[i].ref)
1292 return &mvm->phy_ctxts[i];
1293
1294 IWL_ERR(mvm, "No available PHY context\n");
1295 return NULL;
1296}
1297
d44c3fe6
AA		 1298static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1299 s16 tx_power)
1300{
1301 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1302 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1303 .v3.mac_context_id =
d44c3fe6 1304 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1305 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1306 };
da03f029 1307 int len = sizeof(cmd);
d44c3fe6 1308
d44c3fe6 1309 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1310 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1311
55bfa4b9
LC		 1312 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1313 len = sizeof(cmd.v3);
da03f029
JB		 1314
1315 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1316}
1317
8ca151b5
JB		 1318static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1319 struct ieee80211_vif *vif)
1320{
1321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1323 int ret;
1324
aa5e1832
EG		 1325 mvmvif->mvm = mvm;
1326
d40fc489
GG		 1327 /*
1328 * make sure D0i3 exit is completed, otherwise a target access
1329 * during tx queue configuration could be done when still in
1330 * D0i3 state.
1331 */
1332 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1333 if (ret)
1334 return ret;
1335
8ca151b5
JB		 1336 /*
1337 * Not much to do here. The stack will not allow interface
1338 * types or combinations that we didn't advertise, so we
1339 * don't really have to check the types.
1340 */
1341
1342 mutex_lock(&mvm->mutex);
1343
33cef925
JB		 1344 /* make sure that beacon statistics don't go backwards with FW reset */
1345 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1346 mvmvif->beacon_stats.accu_num_beacons +=
1347 mvmvif->beacon_stats.num_beacons;
1348
e89044d7 1349 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1350 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1351 if (ret)
1352 goto out_unlock;
1353
1c2abf72 1354 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1355 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1356 mvm->vif_count++;
ea183d02 1357
8ca151b5
JB		 1358 /*
1359 * The AP binding flow can be done only after the beacon
1360 * template is configured (which happens only in the mac80211
1361 * start_ap() flow), and adding the broadcast station can happen
1362 * only after the binding.
1363 * In addition, since modifying the MAC before adding a bcast
1364 * station is not allowed by the FW, delay the adding of MAC context to
1365 * the point where we can also add the bcast station.
1366 * In short: there's not much we can do at this point, other than
1367 * allocating resources :)
1368 */
5023d966
JB		 1369 if (vif->type == NL80211_IFTYPE_AP ||
1370 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1371 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1372 if (ret) {
1373 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1374 goto out_release;
1375 }
1376
c8f54701
JB		 1377 /*
1378 * Only queue for this station is the mcast queue,
1379 * which shouldn't be in TFD mask anyway
1380 */
1381 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1382 0, vif->type,
1383 IWL_STA_MULTICAST);
1384 if (ret)
1385 goto out_release;
26d6c16b 1386
77740cb4 1387 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1388 goto out_unlock;
1389 }
1390
93190fb0
AA		 1391 mvmvif->features |= hw->netdev_features;
1392
8ca151b5
JB		 1393 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1394 if (ret)
1395 goto out_release;
1396
999609f1 1397 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1398 if (ret)
fd66fc1c 1399 goto out_remove_mac;
8ca151b5 1400
7df15b1e 1401 /* beacon filtering */
a1022927 1402 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1403 if (ret)
1404 goto out_remove_mac;
1405
7df15b1e 1406 if (!mvm->bf_allowed_vif &&
73e5f2c5 1407 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1408 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1409 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1410 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1411 }
1412
8ca151b5
JB		 1413 /*
1414 * P2P_DEVICE interface does not have a channel context assigned to it,
1415 * so a dedicated PHY context is allocated to it and the corresponding
1416 * MAC context is bound to it at this stage.
1417 */
1418 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1419
fe0f2de3
IP		 1420 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1421 if (!mvmvif->phy_ctxt) {
1422 ret = -ENOSPC;
bd3351ba 1423 goto out_free_bf;
fe0f2de3 1424 }
8ca151b5 1425
53a9d61e 1426 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1427 ret = iwl_mvm_binding_add_vif(mvm, vif);
1428 if (ret)
53a9d61e 1429 goto out_unref_phy;
8ca151b5 1430
d197358b 1431 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
8ca151b5
JB		 1432 if (ret)
1433 goto out_unbind;
1434
1435 /* Save a pointer to p2p device vif, so it can later be used to
1436 * update the p2p device MAC when a GO is started/stopped */
1437 mvm->p2p_device_vif = vif;
1438 }
1439
63494374 1440 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1441 goto out_unlock;
1442
1443 out_unbind:
1444 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1445 out_unref_phy:
fe0f2de3 1446 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1447 out_free_bf:
1448 if (mvm->bf_allowed_vif == mvmvif) {
1449 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1450 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1451 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1452 }
8ca151b5
JB		 1453 out_remove_mac:
1454 mvmvif->phy_ctxt = NULL;
1455 iwl_mvm_mac_ctxt_remove(mvm, vif);
1456 out_release:
5ee2b215
AB		 1457 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1458 mvm->vif_count--;
8ca151b5
JB		 1459 out_unlock:
1460 mutex_unlock(&mvm->mutex);
1461
d40fc489
GG		 1462 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1463
8ca151b5
JB		 1464 return ret;
1465}
1466
38a12b5b
JB		 1467static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1468 struct ieee80211_vif *vif)
8ca151b5 1469{
8ca151b5
JB		 1470 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1471 /*
1472 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1473 * We assume here that all the packets sent to the OFFCHANNEL
1474 * queue are sent in ROC session.
1475 */
1476 flush_work(&mvm->roc_done_wk);
8ca151b5 1477 }
38a12b5b
JB		 1478}
1479
1480static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1481 struct ieee80211_vif *vif)
1482{
1483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1485
1486 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1487
1488 mutex_lock(&mvm->mutex);
1489
7df15b1e
HG		 1490 if (mvm->bf_allowed_vif == mvmvif) {
1491 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1492 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1493 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1494 }
1495
63494374
JB		 1496 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1497
8ca151b5
JB		 1498 /*
1499 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1500 * interface is be handled as part of the stop_ap flow.
8ca151b5 1501 */
5023d966
JB		 1502 if (vif->type == NL80211_IFTYPE_AP ||
1503 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1504#ifdef CONFIG_NL80211_TESTMODE
1505 if (vif == mvm->noa_vif) {
1506 mvm->noa_vif = NULL;
1507 mvm->noa_duration = 0;
1508 }
1509#endif
26d6c16b 1510 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1511 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1512 goto out_release;
1513 }
1514
1515 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1516 mvm->p2p_device_vif = NULL;
d197358b 1517 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
8ca151b5 1518 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1519 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1520 mvmvif->phy_ctxt = NULL;
1521 }
1522
5ee2b215 1523 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1524 mvm->vif_count--;
1c2abf72 1525
999609f1 1526 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1527 iwl_mvm_mac_ctxt_remove(mvm, vif);
1528
1529out_release:
8ca151b5
JB		 1530 mutex_unlock(&mvm->mutex);
1531}
1532
1533static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1534{
8ca151b5
JB		 1535 return 0;
1536}
1537
e59647ea
EP		 1538struct iwl_mvm_mc_iter_data {
1539 struct iwl_mvm *mvm;
1540 int port_id;
1541};
1542
1543static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1544 struct ieee80211_vif *vif)
1545{
1546 struct iwl_mvm_mc_iter_data *data = _data;
1547 struct iwl_mvm *mvm = data->mvm;
1548 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1549 int ret, len;
1550
1551 /* if we don't have free ports, mcast frames will be dropped */
1552 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1553 return;
1554
1555 if (vif->type != NL80211_IFTYPE_STATION ||
1556 !vif->bss_conf.assoc)
1557 return;
1558
1559 cmd->port_id = data->port_id++;
1560 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1561 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1562
1c4abec0 1563 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1564 if (ret)
1565 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1566}
1567
1568static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1569{
1570 struct iwl_mvm_mc_iter_data iter_data = {
1571 .mvm = mvm,
88f2fd73
MG		 1572 };
1573
e59647ea
EP		 1574 lockdep_assert_held(&mvm->mutex);
1575
1576 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1577 return;
1578
1c4abec0 1579 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1580 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1581 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1582}
1583
e59647ea
EP		 1584static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1585 struct netdev_hw_addr_list *mc_list)
8ca151b5 1586{
e59647ea
EP		 1587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1588 struct iwl_mcast_filter_cmd *cmd;
1589 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1590 int addr_count;
1591 bool pass_all;
e59647ea
EP		 1592 int len;
1593
f3bd58f4
MS		 1594 addr_count = netdev_hw_addr_list_count(mc_list);
1595 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1596 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1597 if (pass_all)
e59647ea 1598 addr_count = 0;
e59647ea
EP		 1599
1600 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1601 cmd = kzalloc(len, GFP_ATOMIC);
1602 if (!cmd)
1603 return 0;
1604
1605 if (pass_all) {
1606 cmd->pass_all = 1;
1607 return (u64)(unsigned long)cmd;
1608 }
1609
1610 netdev_hw_addr_list_for_each(addr, mc_list) {
1611 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1612 cmd->count, addr->addr);
1613 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1614 addr->addr, ETH_ALEN);
1615 cmd->count++;
1616 }
1617
1618 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1619}
1620
1621static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1622 unsigned int changed_flags,
1623 unsigned int *total_flags,
1624 u64 multicast)
1625{
e59647ea
EP		 1626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1627 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1628
e59647ea 1629 mutex_lock(&mvm->mutex);
51b6b9e0 1630
e59647ea
EP		 1631 /* replace previous configuration */
1632 kfree(mvm->mcast_filter_cmd);
1633 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1634
e59647ea
EP		 1635 if (!cmd)
1636 goto out;
51b6b9e0 1637
e59647ea
EP		 1638 iwl_mvm_recalc_multicast(mvm);
1639out:
1640 mutex_unlock(&mvm->mutex);
1641 *total_flags = 0;
51b6b9e0
EG		 1642}
1643
effd1929
AO		 1644static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1645 struct ieee80211_vif *vif,
1646 unsigned int filter_flags,
1647 unsigned int changed_flags)
1648{
1649 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1650
1651 /* We support only filter for probe requests */
1652 if (!(changed_flags & FIF_PROBE_REQ))
1653 return;
1654
1655 /* Supported only for p2p client interfaces */
1656 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1657 !vif->p2p)
1658 return;
1659
1660 mutex_lock(&mvm->mutex);
1661 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1662 mutex_unlock(&mvm->mutex);
1663}
1664
c87163b9
EP		 1665#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1666struct iwl_bcast_iter_data {
1667 struct iwl_mvm *mvm;
1668 struct iwl_bcast_filter_cmd *cmd;
1669 u8 current_filter;
1670};
1671
1672static void
1673iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1674 const struct iwl_fw_bcast_filter *in_filter,
1675 struct iwl_fw_bcast_filter *out_filter)
1676{
1677 struct iwl_fw_bcast_filter_attr *attr;
1678 int i;
1679
1680 memcpy(out_filter, in_filter, sizeof(*out_filter));
1681
1682 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1683 attr = &out_filter->attrs[i];
1684
1685 if (!attr->mask)
1686 break;
1687
2ee8f021
EP		 1688 switch (attr->reserved1) {
1689 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1690 if (vif->bss_conf.arp_addr_cnt != 1) {
1691 attr->mask = 0;
1692 continue;
1693 }
1694
1695 attr->val = vif->bss_conf.arp_addr_list[0];
1696 break;
1697 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1698 attr->val = *(__be32 *)&vif->addr[2];
1699 break;
1700 default:
1701 break;
1702 }
1703 attr->reserved1 = 0;
c87163b9
EP		 1704 out_filter->num_attrs++;
1705 }
1706}
1707
1708static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1709 struct ieee80211_vif *vif)
1710{
1711 struct iwl_bcast_iter_data *data = _data;
1712 struct iwl_mvm *mvm = data->mvm;
1713 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1714 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1715 struct iwl_fw_bcast_mac *bcast_mac;
1716 int i;
1717
1718 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1719 return;
1720
1721 bcast_mac = &cmd->macs[mvmvif->id];
1722
e48393e8
IP		 1723 /*
1724 * enable filtering only for associated stations, but not for P2P
1725 * Clients
1726 */
1727 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1728 !vif->bss_conf.assoc)
c87163b9
EP		 1729 return;
1730
1731 bcast_mac->default_discard = 1;
1732
1733 /* copy all configured filters */
1734 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1735 /*
1736 * Make sure we don't exceed our filters limit.
1737 * if there is still a valid filter to be configured,
1738 * be on the safe side and just allow bcast for this mac.
1739 */
1740 if (WARN_ON_ONCE(data->current_filter >=
1741 ARRAY_SIZE(cmd->filters))) {
1742 bcast_mac->default_discard = 0;
1743 bcast_mac->attached_filters = 0;
1744 break;
1745 }
1746
1747 iwl_mvm_set_bcast_filter(vif,
1748 &mvm->bcast_filters[i],
1749 &cmd->filters[data->current_filter]);
1750
1751 /* skip current filter if it contains no attributes */
1752 if (!cmd->filters[data->current_filter].num_attrs)
1753 continue;
1754
1755 /* attach the filter to current mac */
1756 bcast_mac->attached_filters |=
1757 cpu_to_le16(BIT(data->current_filter));
1758
1759 data->current_filter++;
1760 }
1761}
1762
de06a59e
EP		 1763bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1764 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1765{
c87163b9
EP		 1766 struct iwl_bcast_iter_data iter_data = {
1767 .mvm = mvm,
de06a59e 1768 .cmd = cmd,
c87163b9
EP		 1769 };
1770
3b8983b1
MS		 1771 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1772 return false;
1773
de06a59e
EP		 1774 memset(cmd, 0, sizeof(*cmd));
1775 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1776 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1777
1778#ifdef CONFIG_IWLWIFI_DEBUGFS
1779 /* use debugfs filters/macs if override is configured */
1780 if (mvm->dbgfs_bcast_filtering.override) {
1781 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1782 sizeof(cmd->filters));
1783 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1784 sizeof(cmd->macs));
1785 return true;
1786 }
1787#endif
c87163b9
EP		 1788
1789 /* if no filters are configured, do nothing */
1790 if (!mvm->bcast_filters)
de06a59e 1791 return false;
c87163b9
EP		 1792
1793 /* configure and attach these filters for each associated sta vif */
1794 ieee80211_iterate_active_interfaces(
1795 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1796 iwl_mvm_bcast_filter_iterator, &iter_data);
1797
de06a59e
EP		 1798 return true;
1799}
34672bb3
EP		 1800
1801static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1802{
1803 struct iwl_bcast_filter_cmd cmd;
1804
1805 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1806 return 0;
1807
1808 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1809 return 0;
1810
a1022927 1811 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1812 sizeof(cmd), &cmd);
1813}
1814#else
34672bb3 1815static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1816{
1817 return 0;
1818}
1819#endif
1820
a07a8f37
SS		 1821static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1822 struct ieee80211_vif *vif)
1823{
1824 struct iwl_mu_group_mgmt_cmd cmd = {};
1825
1826 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1827 WLAN_MEMBERSHIP_LEN);
1828 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1829 WLAN_USER_POSITION_LEN);
1830
1831 return iwl_mvm_send_cmd_pdu(mvm,
1832 WIDE_ID(DATA_PATH_GROUP,
1833 UPDATE_MU_GROUPS_CMD),
1834 0, sizeof(cmd), &cmd);
1835}
1836
f92659a1
SS		 1837static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1838 struct ieee80211_vif *vif)
1839{
1840 if (vif->mu_mimo_owner) {
1841 struct iwl_mu_group_mgmt_notif *notif = _data;
1842
1843 /*
1844 * MU-MIMO Group Id action frame is little endian. We treat
1845 * the data received from firmware as if it came from the
1846 * action frame, so no conversion is needed.
1847 */
1848 ieee80211_update_mu_groups(vif,
1849 (u8 *)&notif->membership_status,
1850 (u8 *)&notif->user_position);
1851 }
1852}
1853
1854void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1855 struct iwl_rx_cmd_buffer *rxb)
1856{
1857 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1858 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1859
1860 ieee80211_iterate_active_interfaces_atomic(
1861 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1862 iwl_mvm_mu_mimo_iface_iterator, notif);
1863}
1864
8ca151b5
JB		 1865static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1866 struct ieee80211_vif *vif,
1867 struct ieee80211_bss_conf *bss_conf,
1868 u32 changes)
1869{
1870 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1871 int ret;
1872
6e97b0d2
IP		 1873 /*
1874 * Re-calculate the tsf id, as the master-slave relations depend on the
1875 * beacon interval, which was not known when the station interface was
1876 * added.
1877 */
1878 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1879 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1880
03098268
AE		 1881 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1882 mvmvif->lqm_active)
1883 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1884 0, 0);
1885
3dfd3a97
JB		 1886 /*
1887 * If we're not associated yet, take the (new) BSSID before associating
1888 * so the firmware knows. If we're already associated, then use the old
1889 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1890 * branch for disassociation below.
1891 */
1892 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1893 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1894
1895 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1896 if (ret)
1897 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1898
3dfd3a97
JB		 1899 /* after sending it once, adopt mac80211 data */
1900 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1901 mvmvif->associated = bss_conf->assoc;
1902
8ca151b5
JB		 1903 if (changes & BSS_CHANGED_ASSOC) {
1904 if (bss_conf->assoc) {
33cef925
JB		 1905 /* clear statistics to get clean beacon counter */
1906 iwl_mvm_request_statistics(mvm, true);
1907 memset(&mvmvif->beacon_stats, 0,
1908 sizeof(mvmvif->beacon_stats));
1909
8ca151b5 1910 /* add quota for this interface */
7754ae79 1911 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1912 if (ret) {
1913 IWL_ERR(mvm, "failed to update quotas\n");
1914 return;
1915 }
016d27e1
JB		 1916
1917 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1918 &mvm->status)) {
1919 /*
1920 * If we're restarting then the firmware will
1921 * obviously have lost synchronisation with
1922 * the AP. It will attempt to synchronise by
1923 * itself, but we can make it more reliable by
1924 * scheduling a session protection time event.
1925 *
1926 * The firmware needs to receive a beacon to
1927 * catch up with synchronisation, use 110% of
1928 * the beacon interval.
1929 *
1930 * Set a large maximum delay to allow for more
1931 * than a single interface.
1932 */
1933 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1934 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1935 5 * dur, false);
016d27e1 1936 }
1f3b0ff8
LE		 1937
1938 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1939 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1940 if (vif->p2p) {
29a90a49 1941 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1942 iwl_mvm_update_smps(mvm, vif,
1943 IWL_MVM_SMPS_REQ_PROT,
1944 IEEE80211_SMPS_DYNAMIC);
1945 }
0ae98812 1946 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE		 1947 /*
1948 * If update fails - SF might be running in associated
1949 * mode while disassociated - which is forbidden.
1950 */
1951 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1952 "Failed to update SF upon disassociation\n");
1953
6b28f978
EG		 1954 /*
1955 * If we get an assert during the connection (after the
1956 * station has been added, but before the vif is set
1957 * to associated), mac80211 will re-add the station and
1958 * then configure the vif. Since the vif is not
1959 * associated, we would remove the station here and
1960 * this would fail the recovery.
1961 */
1962 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1963 &mvm->status)) {
1964 /*
1965 * Remove AP station now that
1966 * the MAC is unassoc
1967 */
1968 ret = iwl_mvm_rm_sta_id(mvm, vif,
1969 mvmvif->ap_sta_id);
1970 if (ret)
1971 IWL_ERR(mvm,
1972 "failed to remove AP station\n");
1973
1974 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1975 mvm->d0i3_ap_sta_id =
1976 IWL_MVM_INVALID_STA;
1977 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1978 }
37577fe2 1979
8ca151b5 1980 /* remove quota for this interface */
7754ae79 1981 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1982 if (ret)
1983 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1984
1985 if (vif->p2p)
1986 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1987
1988 /* this will take the cleared BSSID from bss_conf */
1989 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1990 if (ret)
1991 IWL_ERR(mvm,
1992 "failed to update MAC %pM (clear after unassoc)\n",
1993 vif->addr);
8ca151b5 1994 }
a20fd398 1995
a07a8f37
SS		 1996 /*
1997 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1998 * However, on HW restart we should restore this data.
a07a8f37
SS		 1999 */
2000 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 2001 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 2002 ret = iwl_mvm_update_mu_groups(mvm, vif);
2003 if (ret)
2004 IWL_ERR(mvm,
2005 "failed to update VHT MU_MIMO groups\n");
2006 }
2007
e59647ea 2008 iwl_mvm_recalc_multicast(mvm);
34672bb3 2009 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2010
a20fd398
AO		 2011 /* reset rssi values */
2012 mvmvif->bf_data.ave_beacon_signal = 0;
2013
8e484f0b 2014 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2015 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2016 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2017 if (fw_has_capa(&mvm->fw->ucode_capa,
2018 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2019 iwl_mvm_config_scan(mvm);
b45242c9
AS		 2020 }
2021
2022 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2023 /*
b45242c9 2024 * We received a beacon from the associated AP so
210a544e
JB		 2025 * remove the session protection.
2026 */
3edfb5f4 2027 iwl_mvm_stop_session_protection(mvm, vif);
cc87d322 2028
cc87d322
EH		 2029 iwl_mvm_sf_update(mvm, vif, false);
2030 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2031 }
2032
283115fb
AA		 2033 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2034 /*
2035 * Send power command on every beacon change,
2036 * because we may have not enabled beacon abort yet.
2037 */
2038 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2039 ret = iwl_mvm_power_update_mac(mvm);
2040 if (ret)
2041 IWL_ERR(mvm, "failed to update power mode\n");
2042 }
2043
88f2fd73
MG		 2044 if (changes & BSS_CHANGED_TXPOWER) {
2045 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2046 bss_conf->txpower);
2047 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2048 }
a20fd398
AO		 2049
2050 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2051 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2052 /* reset cqm events tracking */
2053 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2054 if (mvmvif->bf_data.bf_enabled) {
2055 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2056 if (ret)
2057 IWL_ERR(mvm,
2058 "failed to update CQM thresholds\n");
2059 }
a20fd398 2060 }
2ee8f021
EP		 2061
2062 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2063 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2064 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2065 }
8ca151b5
JB		 2066}
2067
5023d966
JB		 2068static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2069 struct ieee80211_vif *vif)
8ca151b5
JB		 2070{
2071 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2072 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2073 int ret;
2074
576eeee9
EP		 2075 /*
2076 * iwl_mvm_mac_ctxt_add() might read directly from the device
2077 * (the system time), so make sure it is available.
2078 */
2079 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2080 if (ret)
2081 return ret;
2082
8ca151b5
JB		 2083 mutex_lock(&mvm->mutex);
2084
2085 /* Send the beacon template */
2086 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2087 if (ret)
2088 goto out_unlock;
2089
6e97b0d2
IP		 2090 /*
2091 * Re-calculate the tsf id, as the master-slave relations depend on the
2092 * beacon interval, which was not known when the AP interface was added.
2093 */
2094 if (vif->type == NL80211_IFTYPE_AP)
2095 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2096
94939080
GG		 2097 mvmvif->ap_assoc_sta_count = 0;
2098
8ca151b5
JB		 2099 /* Add the mac context */
2100 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2101 if (ret)
2102 goto out_unlock;
2103
2104 /* Perform the binding */
2105 ret = iwl_mvm_binding_add_vif(mvm, vif);
2106 if (ret)
2107 goto out_remove;
2108
ced19f26 2109 ret = iwl_mvm_add_mcast_sta(mvm, vif);
8ca151b5
JB		 2110 if (ret)
2111 goto out_unbind;
2112
ced19f26
SS		 2113 /* Send the bcast station. At this stage the TBTT and DTIM time events
2114 * are added and applied to the scheduler */
2115 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
26d6c16b 2116 if (ret)
ced19f26 2117 goto out_rm_mcast;
26d6c16b 2118
5691e218
IP		 2119 /* must be set before quota calculations */
2120 mvmvif->ap_ibss_active = true;
2121
a11e144e 2122 /* power updated needs to be done before quotas */
999609f1 2123 iwl_mvm_power_update_mac(mvm);
a11e144e 2124
7754ae79 2125 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2126 if (ret)
a11e144e 2127 goto out_quota_failed;
8ca151b5 2128
5023d966 2129 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2130 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2131 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2132
29a90a49
EP		 2133 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2134
8e484f0b 2135 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2136
f697267f
AN		 2137 /* we don't support TDLS during DCM */
2138 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2139 iwl_mvm_teardown_tdls_peers(mvm);
2140
939e4904 2141 goto out_unlock;
8ca151b5 2142
a11e144e 2143out_quota_failed:
999609f1 2144 iwl_mvm_power_update_mac(mvm);
5691e218 2145 mvmvif->ap_ibss_active = false;
013290aa 2146 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2147out_rm_mcast:
2148 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB		 2149out_unbind:
2150 iwl_mvm_binding_remove_vif(mvm, vif);
2151out_remove:
2152 iwl_mvm_mac_ctxt_remove(mvm, vif);
2153out_unlock:
2154 mutex_unlock(&mvm->mutex);
576eeee9 2155 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2156 return ret;
2157}
2158
5023d966
JB		 2159static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2160 struct ieee80211_vif *vif)
8ca151b5
JB		 2161{
2162 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2163 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2164
38a12b5b
JB		 2165 iwl_mvm_prepare_mac_removal(mvm, vif);
2166
8ca151b5
JB		 2167 mutex_lock(&mvm->mutex);
2168
664322fa 2169 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2170 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2171 iwl_mvm_remove_time_event(mvm, mvmvif,
2172 &mvmvif->time_event_data);
664322fa 2173 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2174 mvmvif->csa_countdown = false;
7f0a7c67 2175 }
664322fa 2176
003e5236
AO		 2177 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2178 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2179 mvm->csa_tx_block_bcn_timeout = 0;
2180 }
2181
5023d966 2182 mvmvif->ap_ibss_active = false;
1c87bbad 2183 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2184
8e484f0b 2185 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2186
29a90a49
EP		 2187 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2188
5023d966 2189 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2190 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2191 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2192
7754ae79 2193 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS		 2194
2195 /*
2196 * This is not very nice, but the simplest:
2197 * For older FWs removing the mcast sta before the bcast station may
2198 * cause assert 0x2b00.
2199 * This is fixed in later FW (which will stop beaconing when removing
2200 * bcast station).
2201 * So make the order of removal depend on the TLV
2202 */
2203 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2204 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2205 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2206 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2207 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2208 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2209
999609f1 2210 iwl_mvm_power_update_mac(mvm);
a11e144e 2211
8ca151b5
JB		 2212 iwl_mvm_mac_ctxt_remove(mvm, vif);
2213
2214 mutex_unlock(&mvm->mutex);
2215}
2216
5023d966
JB		 2217static void
2218iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2219 struct ieee80211_vif *vif,
2220 struct ieee80211_bss_conf *bss_conf,
2221 u32 changes)
8ca151b5 2222{
be2056fc 2223 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2224
be2056fc
IP		 2225 /* Changes will be applied when the AP/IBSS is started */
2226 if (!mvmvif->ap_ibss_active)
2227 return;
2228
863230da 2229 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2230 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2231 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2232 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2233
8ca151b5 2234 /* Need to send a new beacon template to the FW */
863230da
JB		 2235 if (changes & BSS_CHANGED_BEACON &&
2236 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2237 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2238
2239 if (changes & BSS_CHANGED_TXPOWER) {
2240 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2241 bss_conf->txpower);
2242 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2243 }
8ca151b5
JB		 2244}
2245
2246static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2247 struct ieee80211_vif *vif,
2248 struct ieee80211_bss_conf *bss_conf,
2249 u32 changes)
2250{
2251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2252
576eeee9
EP		 2253 /*
2254 * iwl_mvm_bss_info_changed_station() might call
2255 * iwl_mvm_protect_session(), which reads directly from
2256 * the device (the system time), so make sure it is available.
2257 */
2258 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2259 return;
2260
8ca151b5
JB		 2261 mutex_lock(&mvm->mutex);
2262
723f02ed 2263 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2264 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2265
8ca151b5
JB		 2266 switch (vif->type) {
2267 case NL80211_IFTYPE_STATION:
2268 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2269 break;
2270 case NL80211_IFTYPE_AP:
5023d966
JB		 2271 case NL80211_IFTYPE_ADHOC:
2272 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2273 break;
91b08c2d
AE		 2274 case NL80211_IFTYPE_MONITOR:
2275 if (changes & BSS_CHANGED_MU_GROUPS)
2276 iwl_mvm_update_mu_groups(mvm, vif);
2277 break;
8ca151b5
JB		 2278 default:
2279 /* shouldn't happen */
2280 WARN_ON_ONCE(1);
2281 }
2282
2283 mutex_unlock(&mvm->mutex);
576eeee9 2284 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2285}
2286
2287static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2288 struct ieee80211_vif *vif,
c56ef672 2289 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2290{
2291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2292 int ret;
2293
6749dd80
LC		 2294 if (hw_req->req.n_channels == 0 ||
2295 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2296 return -EINVAL;
2297
2298 mutex_lock(&mvm->mutex);
6749dd80 2299 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2300 mutex_unlock(&mvm->mutex);
6749dd80 2301
8ca151b5
JB		 2302 return ret;
2303}
2304
2305static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2306 struct ieee80211_vif *vif)
2307{
2308 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2309
2310 mutex_lock(&mvm->mutex);
2311
e7d3abab
LC		 2312 /* Due to a race condition, it's possible that mac80211 asks
2313 * us to stop a hw_scan when it's already stopped. This can
2314 * happen, for instance, if we stopped the scan ourselves,
2315 * called ieee80211_scan_completed() and the userspace called
2316 * cancel scan scan before ieee80211_scan_work() could run.
2317 * To handle that, simply return if the scan is not running.
2318 */
262888fc 2319 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2320 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2321
2322 mutex_unlock(&mvm->mutex);
2323}
2324
2325static void
2326iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2327 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2328 int num_frames,
2329 enum ieee80211_frame_release_type reason,
2330 bool more_data)
2331{
2332 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2333
3e56eadf 2334 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2335
3e56eadf
JB		 2336 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2337 tids, more_data, false);
2338}
2339
2340static void
2341iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2342 struct ieee80211_sta *sta, u16 tids,
2343 int num_frames,
2344 enum ieee80211_frame_release_type reason,
2345 bool more_data)
2346{
2347 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2348
9a3fcf91 2349 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB		 2350
2351 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2352 tids, more_data, true);
8ca151b5
JB		 2353}
2354
65e25482
JB		 2355static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2356 enum sta_notify_cmd cmd,
2357 struct ieee80211_sta *sta)
8ca151b5
JB		 2358{
2359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2360 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2361 unsigned long txqs = 0, tids = 0;
3e56eadf 2362 int tid;
8ca151b5 2363
960f864b
JB		 2364 /*
2365 * If we have TVQM then we get too high queue numbers - luckily
2366 * we really shouldn't get here with that because such hardware
2367 * should have firmware supporting buffer station offload.
2368 */
2369 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2370 return;
2371
c22b0ff5
EG		 2372 spin_lock_bh(&mvmsta->lock);
2373 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2374 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2375
6862fcee 2376 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS		 2377 continue;
2378
c22b0ff5
EG		 2379 __set_bit(tid_data->txq_id, &txqs);
2380
dd32162d 2381 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG		 2382 continue;
2383
2384 __set_bit(tid, &tids);
2385 }
2386
8ca151b5
JB		 2387 switch (cmd) {
2388 case STA_NOTIFY_SLEEP:
c22b0ff5 2389 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2390 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2391
2392 if (txqs)
2393 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2394 /*
2395 * The fw updates the STA to be asleep. Tx packets on the Tx
2396 * queues to this station will not be transmitted. The fw will
2397 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2398 */
2399 break;
2400 case STA_NOTIFY_AWAKE:
0ae98812 2401 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2402 break;
c22b0ff5
EG		 2403
2404 if (txqs)
2405 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2406 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2407 break;
2408 default:
2409 break;
2410 }
c22b0ff5 2411 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2412}
2413
65e25482
JB		 2414static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2415 struct ieee80211_vif *vif,
2416 enum sta_notify_cmd cmd,
2417 struct ieee80211_sta *sta)
2418{
2419 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2420}
2421
2422void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2423{
2424 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2425 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2426 struct ieee80211_sta *sta;
2427 struct iwl_mvm_sta *mvmsta;
2428 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2429
2430 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2431 return;
2432
2433 rcu_read_lock();
a9560029 2434 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB		 2435 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2436 rcu_read_unlock();
2437 return;
2438 }
2439
2440 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2441
2442 if (!mvmsta->vif ||
2443 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2444 rcu_read_unlock();
2445 return;
2446 }
2447
2448 if (mvmsta->sleeping != sleeping) {
2449 mvmsta->sleeping = sleeping;
2450 __iwl_mvm_mac_sta_notify(mvm->hw,
2451 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2452 sta);
2453 ieee80211_sta_ps_transition(sta, sleeping);
2454 }
2455
2456 if (sleeping) {
2457 switch (notif->type) {
2458 case IWL_MVM_PM_EVENT_AWAKE:
2459 case IWL_MVM_PM_EVENT_ASLEEP:
2460 break;
2461 case IWL_MVM_PM_EVENT_UAPSD:
2462 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2463 break;
2464 case IWL_MVM_PM_EVENT_PS_POLL:
2465 ieee80211_sta_pspoll(sta);
2466 break;
2467 default:
2468 break;
2469 }
2470 }
2471
2472 rcu_read_unlock();
2473}
2474
1ddbbb0c
JB		 2475static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2476 struct ieee80211_vif *vif,
2477 struct ieee80211_sta *sta)
2478{
2479 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2480 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2481
2482 /*
2483 * This is called before mac80211 does RCU synchronisation,
2484 * so here we already invalidate our internal RCU-protected
2485 * station pointer. The rest of the code will thus no longer
2486 * be able to find the station this way, and we don't rely
2487 * on further RCU synchronisation after the sta_state()
2488 * callback deleted the station.
2489 */
2490 mutex_lock(&mvm->mutex);
2491 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2492 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2493 ERR_PTR(-ENOENT));
94939080 2494
1ddbbb0c
JB		 2495 mutex_unlock(&mvm->mutex);
2496}
2497
bd1ba664
JB		 2498static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2499 const u8 *bssid)
2500{
2501 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2502 return;
2503
c5241b0c 2504 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2505 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2506 return;
2507 }
2508
11dee0b4
EG		 2509 if (!vif->p2p &&
2510 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2511 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2512 return;
2513 }
2514
2515 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2516}
2517
1e8f1329
GBA		 2518static void
2519iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2520 struct ieee80211_vif *vif, u8 *peer_addr,
2521 enum nl80211_tdls_operation action)
2522{
2523 struct iwl_fw_dbg_trigger_tlv *trig;
2524 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2525
2526 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2527 return;
2528
2529 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2530 tdls_trig = (void *)trig->data;
7174beb6
JB		 2531 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2532 ieee80211_vif_to_wdev(vif), trig))
1e8f1329
GBA		 2533 return;
2534
2535 if (!(tdls_trig->action_bitmap & BIT(action)))
2536 return;
2537
2538 if (tdls_trig->peer_mode &&
2539 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2540 return;
2541
7174beb6
JB		 2542 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2543 "TDLS event occurred, peer %pM, action %d",
2544 peer_addr, action);
1e8f1329
GBA		 2545}
2546
24afba76
LK		 2547static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2548 struct iwl_mvm_sta *mvm_sta)
2549{
2550 struct iwl_mvm_tid_data *tid_data;
2551 struct sk_buff *skb;
2552 int i;
2553
2554 spin_lock_bh(&mvm_sta->lock);
2555 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2556 tid_data = &mvm_sta->tid_data[i];
7e39a00d
AS		 2557
2558 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2559 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2560
2561 /*
2562 * The first deferred frame should've stopped the MAC
2563 * queues, so we should never get a second deferred
2564 * frame for the RA/TID.
2565 */
8458e48a 2566 iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
24afba76 2567 ieee80211_free_txskb(mvm->hw, skb);
7e39a00d 2568 }
24afba76
LK		 2569 }
2570 spin_unlock_bh(&mvm_sta->lock);
2571}
2572
8ca151b5
JB		 2573static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2574 struct ieee80211_vif *vif,
2575 struct ieee80211_sta *sta,
2576 enum ieee80211_sta_state old_state,
2577 enum ieee80211_sta_state new_state)
2578{
2579 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2580 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2581 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 2582 int ret;
2583
2584 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2585 sta->addr, old_state, new_state);
2586
2587 /* this would be a mac80211 bug ... but don't crash */
2588 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2589 return -EINVAL;
2590
24afba76
LK		 2591 /*
2592 * If we are in a STA removal flow and in DQA mode:
2593 *
2594 * This is after the sync_rcu part, so the queues have already been
2595 * flushed. No more TXs on their way in mac80211's path, and no more in
2596 * the queues.
2597 * Also, we won't be getting any new TX frames for this station.
2598 * What we might have are deferred TX frames that need to be taken care
2599 * of.
2600 *
2601 * Drop any still-queued deferred-frame before removing the STA, and
2602 * make sure the worker is no longer handling frames for this STA.
2603 */
2604 if (old_state == IEEE80211_STA_NONE &&
c8f54701 2605 new_state == IEEE80211_STA_NOTEXIST) {
24afba76
LK		 2606 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2607 flush_work(&mvm->add_stream_wk);
2608
2609 /*
2610 * No need to make sure deferred TX indication is off since the
2611 * worker will already remove it if it was on
2612 */
2613 }
2614
8ca151b5 2615 mutex_lock(&mvm->mutex);
6ea29ce5
JB		 2616 /* track whether or not the station is associated */
2617 mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2618
8ca151b5
JB		 2619 if (old_state == IEEE80211_STA_NOTEXIST &&
2620 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2621 /*
2622 * Firmware bug - it'll crash if the beacon interval is less
2623 * than 16. We can't avoid connecting at all, so refuse the
2624 * station state change, this will cause mac80211 to abandon
2625 * attempts to connect to this AP, and eventually wpa_s will
2626 * blacklist the AP...
2627 */
2628 if (vif->type == NL80211_IFTYPE_STATION &&
2629 vif->bss_conf.beacon_int < 16) {
2630 IWL_ERR(mvm,
2631 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2632 sta->addr, vif->bss_conf.beacon_int);
2633 ret = -EINVAL;
2634 goto out_unlock;
2635 }
cf7b491d
AN		 2636
2637 if (sta->tdls &&
2638 (vif->p2p ||
fa3d07e4
AN		 2639 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2640 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2641 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2642 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2643 ret = -EBUSY;
2644 goto out_unlock;
2645 }
2646
8ca151b5 2647 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2648 if (sta->tdls && ret == 0) {
fa3d07e4 2649 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2650 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2651 NL80211_TDLS_SETUP);
2652 }
8ca151b5
JB		 2653 } else if (old_state == IEEE80211_STA_NONE &&
2654 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2655 /*
2656 * EBS may be disabled due to previous failures reported by FW.
2657 * Reset EBS status here assuming environment has been changed.
2658 */
2659 mvm->last_ebs_successful = true;
bd1ba664 2660 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2661 ret = 0;
2662 } else if (old_state == IEEE80211_STA_AUTH &&
2663 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2664 if (vif->type == NL80211_IFTYPE_AP) {
2665 mvmvif->ap_assoc_sta_count++;
2666 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2667 }
735a0045
GM		 2668
2669 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2670 true);
7a453973 2671 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB		 2672 } else if (old_state == IEEE80211_STA_ASSOC &&
2673 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2674
2675 /* we don't support TDLS during DCM */
2676 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2677 iwl_mvm_teardown_tdls_peers(mvm);
2678
1e8f1329
GBA		 2679 if (sta->tdls)
2680 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2681 NL80211_TDLS_ENABLE_LINK);
2682
7df15b1e 2683 /* enable beacon filtering */
fa7b2e7f 2684 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2685 ret = 0;
2686 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2687 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2688 /* disable beacon filtering */
a1022927 2689 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2690 ret = 0;
2691 } else if (old_state == IEEE80211_STA_ASSOC &&
2692 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2693 if (vif->type == NL80211_IFTYPE_AP) {
2694 mvmvif->ap_assoc_sta_count--;
2695 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2696 }
8ca151b5
JB		 2697 ret = 0;
2698 } else if (old_state == IEEE80211_STA_AUTH &&
2699 new_state == IEEE80211_STA_NONE) {
2700 ret = 0;
2701 } else if (old_state == IEEE80211_STA_NONE &&
2702 new_state == IEEE80211_STA_NOTEXIST) {
2703 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2704 if (sta->tdls) {
fa3d07e4 2705 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2706 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2707 NL80211_TDLS_DISABLE_LINK);
2708 }
8ca151b5
JB		 2709 } else {
2710 ret = -EIO;
2711 }
48bc1307 2712 out_unlock:
8ca151b5
JB		 2713 mutex_unlock(&mvm->mutex);
2714
9c126cd6
LK		 2715 if (sta->tdls && ret == 0) {
2716 if (old_state == IEEE80211_STA_NOTEXIST &&
2717 new_state == IEEE80211_STA_NONE)
2718 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2719 else if (old_state == IEEE80211_STA_NONE &&
2720 new_state == IEEE80211_STA_NOTEXIST)
2721 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2722 }
2723
8ca151b5
JB		 2724 return ret;
2725}
2726
2727static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2728{
2729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2730
2731 mvm->rts_threshold = value;
2732
2733 return 0;
2734}
2735
1f3b0ff8
LE		 2736static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2737 struct ieee80211_vif *vif,
2738 struct ieee80211_sta *sta, u32 changed)
2739{
2740 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2741
2742 if (vif->type == NL80211_IFTYPE_STATION &&
2743 changed & IEEE80211_RC_NSS_CHANGED)
2744 iwl_mvm_sf_update(mvm, vif, false);
2745}
2746
8ca151b5
JB		 2747static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2748 struct ieee80211_vif *vif, u16 ac,
2749 const struct ieee80211_tx_queue_params *params)
2750{
2751 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2752 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2753
2754 mvmvif->queue_params[ac] = *params;
2755
2756 /*
2757 * No need to update right away, we'll get BSS_CHANGED_QOS
2758 * The exception is P2P_DEVICE interface which needs immediate update.
2759 */
2760 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2761 int ret;
2762
2763 mutex_lock(&mvm->mutex);
3dfd3a97 2764 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2765 mutex_unlock(&mvm->mutex);
2766 return ret;
2767 }
2768 return 0;
2769}
2770
2771static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2772 struct ieee80211_vif *vif)
2773{
2774 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2775 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2776 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2777
2778 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2779 return;
2780
576eeee9
EP		 2781 /*
2782 * iwl_mvm_protect_session() reads directly from the device
2783 * (the system time), so make sure it is available.
2784 */
2785 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2786 return;
2787
8ca151b5
JB		 2788 mutex_lock(&mvm->mutex);
2789 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2790 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2791 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2792
2793 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2794}
2795
35a000b7
DS		 2796static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2797 struct ieee80211_vif *vif,
2798 struct cfg80211_sched_scan_request *req,
633e2713 2799 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2800{
2801 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2802
35a000b7 2803 int ret;
4660dfbb 2804
35a000b7
DS		 2805 mutex_lock(&mvm->mutex);
2806
1f940386 2807 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2808 ret = -EBUSY;
2809 goto out;
2810 }
2811
19945dfb 2812 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2813
35a000b7
DS		 2814out:
2815 mutex_unlock(&mvm->mutex);
2816 return ret;
2817}
2818
37e3308c
JB		 2819static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2820 struct ieee80211_vif *vif)
35a000b7
DS		 2821{
2822 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2823 int ret;
35a000b7
DS		 2824
2825 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2826
2827 /* Due to a race condition, it's possible that mac80211 asks
2828 * us to stop a sched_scan when it's already stopped. This
2829 * can happen, for instance, if we stopped the scan ourselves,
2830 * called ieee80211_sched_scan_stopped() and the userspace called
2831 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2832 * could run. To handle this, simply return if the scan is
2833 * not running.
2834 */
262888fc 2835 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2836 mutex_unlock(&mvm->mutex);
2837 return 0;
2838 }
2839
c7d42480 2840 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2841 mutex_unlock(&mvm->mutex);
33ea27f6 2842 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2843
33ea27f6 2844 return ret;
35a000b7
DS		 2845}
2846
8ca151b5
JB		 2847static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2848 enum set_key_cmd cmd,
2849 struct ieee80211_vif *vif,
2850 struct ieee80211_sta *sta,
2851 struct ieee80211_key_conf *key)
2852{
2853 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2854 struct iwl_mvm_sta *mvmsta;
2855 struct iwl_mvm_key_pn *ptk_pn;
2856 int keyidx = key->keyidx;
8ca151b5 2857 int ret;
d6ee54a9 2858 u8 key_offset;
8ca151b5 2859
3b37f4c9 2860 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 2861 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2862 return -EOPNOTSUPP;
2863 }
2864
2865 switch (key->cipher) {
2866 case WLAN_CIPHER_SUITE_TKIP:
2867 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2868 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2869 break;
ca8c0f4b 2870 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2871 case WLAN_CIPHER_SUITE_GCMP:
2872 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS		 2873 if (!iwl_mvm_has_new_tx_api(mvm))
2874 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 2875 break;
8ca151b5 2876 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2877 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2878 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2879 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2880 break;
2881 case WLAN_CIPHER_SUITE_WEP40:
2882 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2883 /* For non-client mode, only use WEP keys for TX as we probably
2884 * don't have a station yet anyway and would then have to keep
2885 * track of the keys, linking them to each of the clients/peers
2886 * as they appear. For now, don't do that, for performance WEP
2887 * offload doesn't really matter much, but we need it for some
2888 * other offload features in client mode.
8ca151b5 2889 */
ba3943b0
JB		 2890 if (vif->type != NL80211_IFTYPE_STATION)
2891 return 0;
2892 break;
8ca151b5 2893 default:
e36e5433
MS		 2894 /* currently FW supports only one optional cipher scheme */
2895 if (hw->n_cipher_schemes &&
2896 hw->cipher_schemes->cipher == key->cipher)
2897 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2898 else
2899 return -EOPNOTSUPP;
8ca151b5
JB		 2900 }
2901
2902 mutex_lock(&mvm->mutex);
2903
2904 switch (cmd) {
2905 case SET_KEY:
5023d966
JB		 2906 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2907 vif->type == NL80211_IFTYPE_AP) && !sta) {
2908 /*
2909 * GTK on AP interface is a TX-only key, return 0;
2910 * on IBSS they're per-station and because we're lazy
2911 * we don't support them for RX, so do the same.
8e160ab8 2912 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2913 */
8e160ab8
AB		 2914 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2915 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2916 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2917 ret = -EOPNOTSUPP;
2918 else
2919 ret = 0;
85aeb58c
DS		 2920
2921 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2922 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2923 !iwl_mvm_has_new_tx_api(mvm)) {
2924 key->hw_key_idx = STA_KEY_IDX_INVALID;
2925 break;
2926 }
6caffd4f
JB		 2927 }
2928
b546dcd6
JB		 2929 /* During FW restart, in order to restore the state as it was,
2930 * don't try to reprogram keys we previously failed for.
2931 */
2932 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2933 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2934 IWL_DEBUG_MAC80211(mvm,
2935 "skip invalid idx key programming during restart\n");
2936 ret = 0;
2937 break;
2938 }
2939
f5e28eac
JB		 2940 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2941 sta && iwl_mvm_has_new_rx_api(mvm) &&
2942 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2943 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2944 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2945 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2946 struct ieee80211_key_seq seq;
2947 int tid, q;
2948
2949 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2950 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2951 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2952 mvm->trans->num_rx_queues *
2953 sizeof(ptk_pn->q[0]),
2954 GFP_KERNEL);
2955 if (!ptk_pn) {
2956 ret = -ENOMEM;
2957 break;
2958 }
2959
2960 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2961 ieee80211_get_key_rx_seq(key, tid, &seq);
2962 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2963 memcpy(ptk_pn->q[q].pn[tid],
2964 seq.ccmp.pn,
2965 IEEE80211_CCMP_PN_LEN);
2966 }
2967
2968 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2969 }
2970
d6ee54a9
LC		 2971 /* in HW restart reuse the index, otherwise request a new one */
2972 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2973 key_offset = key->hw_key_idx;
2974 else
2975 key_offset = STA_KEY_IDX_INVALID;
2976
8ca151b5 2977 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2978 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2979 if (ret) {
2980 IWL_WARN(mvm, "set key failed\n");
2981 /*
2982 * can't add key for RX, but we don't need it
2983 * in the device for TX so still return 0
2984 */
6caffd4f 2985 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2986 ret = 0;
2987 }
2988
2989 break;
2990 case DISABLE_KEY:
6caffd4f
JB		 2991 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2992 ret = 0;
2993 break;
2994 }
2995
f5e28eac
JB		 2996 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2997 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2998 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2999 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3000 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 3001 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3002 ptk_pn = rcu_dereference_protected(
3003 mvmsta->ptk_pn[keyidx],
3004 lockdep_is_held(&mvm->mutex));
3005 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3006 if (ptk_pn)
3007 kfree_rcu(ptk_pn, rcu_head);
3008 }
3009
8ca151b5
JB		 3010 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3011 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3012 break;
3013 default:
3014 ret = -EINVAL;
3015 }
3016
3017 mutex_unlock(&mvm->mutex);
3018 return ret;
3019}
3020
3021static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3022 struct ieee80211_vif *vif,
3023 struct ieee80211_key_conf *keyconf,
3024 struct ieee80211_sta *sta,
3025 u32 iv32, u16 *phase1key)
3026{
3027 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3028
5023d966
JB		 3029 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3030 return;
3031
8ca151b5
JB		 3032 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3033}
3034
3035
b112889c
AM		 3036static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3037 struct iwl_rx_packet *pkt, void *data)
3038{
3039 struct iwl_mvm *mvm =
3040 container_of(notif_wait, struct iwl_mvm, notif_wait);
3041 struct iwl_hs20_roc_res *resp;
3042 int resp_len = iwl_rx_packet_payload_len(pkt);
3043 struct iwl_mvm_time_event_data *te_data = data;
3044
3045 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3046 return true;
3047
3048 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3049 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3050 return true;
3051 }
3052
3053 resp = (void *)pkt->data;
3054
3055 IWL_DEBUG_TE(mvm,
3056 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3057 resp->status, resp->event_unique_id);
3058
3059 te_data->uid = le32_to_cpu(resp->event_unique_id);
3060 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3061 te_data->uid);
3062
3063 spin_lock_bh(&mvm->time_event_lock);
3064 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3065 spin_unlock_bh(&mvm->time_event_lock);
3066
3067 return true;
3068}
3069
dc28e12f
MG		 3070#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3071#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3072#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3073#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3074#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 3075static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3076 struct ieee80211_channel *channel,
3077 struct ieee80211_vif *vif,
3078 int duration)
3079{
3080 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3081 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3082 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3083 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3084 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 3085 u32 dtim_interval = vif->bss_conf.dtim_period *
3086 vif->bss_conf.beacon_int;
3087 u32 req_dur, delay;
b112889c
AM		 3088 struct iwl_hs20_roc_req aux_roc_req = {
3089 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3090 .id_and_color =
3091 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3092 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3093 /* Set the channel info data */
57fbcce3 3094 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 3095 PHY_BAND_24 : PHY_BAND_5,
3096 .channel_info.channel = channel->hw_value,
3097 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3098 /* Set the time and duration */
3099 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 3100 };
3101
dc28e12f
MG		 3102 delay = AUX_ROC_MIN_DELAY;
3103 req_dur = MSEC_TO_TU(duration);
3104
3105 /*
3106 * If we are associated we want the delay time to be at least one
3107 * dtim interval so that the FW can wait until after the DTIM and
3108 * then start the time event, this will potentially allow us to
3109 * remain off-channel for the max duration.
3110 * Since we want to use almost a whole dtim interval we would also
3111 * like the delay to be for 2-3 dtim intervals, in case there are
3112 * other time events with higher priority.
3113 */
3114 if (vif->bss_conf.assoc) {
3115 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3116 /* We cannot remain off-channel longer than the DTIM interval */
3117 if (dtim_interval <= req_dur) {
3118 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3119 if (req_dur <= AUX_ROC_MIN_DURATION)
3120 req_dur = dtim_interval -
3121 AUX_ROC_MIN_SAFETY_BUFFER;
3122 }
3123 }
3124
3125 aux_roc_req.duration = cpu_to_le32(req_dur);
3126 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3127
3128 IWL_DEBUG_TE(mvm,
3129 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3130 channel->hw_value, req_dur, duration, delay,
3131 dtim_interval);
b112889c
AM		 3132 /* Set the node address */
3133 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3134
a6cc5163
MG		 3135 lockdep_assert_held(&mvm->mutex);
3136
3137 spin_lock_bh(&mvm->time_event_lock);
3138
3139 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3140 spin_unlock_bh(&mvm->time_event_lock);
3141 return -EIO;
3142 }
3143
b112889c
AM		 3144 te_data->vif = vif;
3145 te_data->duration = duration;
3146 te_data->id = HOT_SPOT_CMD;
3147
b112889c
AM		 3148 spin_unlock_bh(&mvm->time_event_lock);
3149
3150 /*
3151 * Use a notification wait, which really just processes the
3152 * command response and doesn't wait for anything, in order
3153 * to be able to process the response and get the UID inside
3154 * the RX path. Using CMD_WANT_SKB doesn't work because it
3155 * stores the buffer and then wakes up this thread, by which
3156 * time another notification (that the time event started)
3157 * might already be processed unsuccessfully.
3158 */
3159 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3160 time_event_response,
3161 ARRAY_SIZE(time_event_response),
3162 iwl_mvm_rx_aux_roc, te_data);
3163
3164 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3165 &aux_roc_req);
3166
3167 if (res) {
3168 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3169 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3170 goto out_clear_te;
3171 }
3172
3173 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3174 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3175 /* should never fail */
3176 WARN_ON_ONCE(res);
3177
3178 if (res) {
3179 out_clear_te:
3180 spin_lock_bh(&mvm->time_event_lock);
3181 iwl_mvm_te_clear_data(mvm, te_data);
3182 spin_unlock_bh(&mvm->time_event_lock);
3183 }
3184
3185 return res;
3186}
3187
8ca151b5
JB		 3188static int iwl_mvm_roc(struct ieee80211_hw *hw,
3189 struct ieee80211_vif *vif,
3190 struct ieee80211_channel *channel,
d339d5ca
IP		 3191 int duration,
3192 enum ieee80211_roc_type type)
8ca151b5
JB		 3193{
3194 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3195 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3196 struct cfg80211_chan_def chandef;
31d385ae
IP		 3197 struct iwl_mvm_phy_ctxt *phy_ctxt;
3198 int ret, i;
3199
3200 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3201 duration, type);
8ca151b5 3202
6ed13164
MG		 3203 flush_work(&mvm->roc_done_wk);
3204
a6cc5163
MG		 3205 mutex_lock(&mvm->mutex);
3206
b112889c
AM		 3207 switch (vif->type) {
3208 case NL80211_IFTYPE_STATION:
859d914c
JB		 3209 if (fw_has_capa(&mvm->fw->ucode_capa,
3210 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3211 /* Use aux roc framework (HS20) */
3212 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3213 vif, duration);
3214 goto out_unlock;
3215 }
3216 IWL_ERR(mvm, "hotspot not supported\n");
3217 ret = -EINVAL;
a6cc5163 3218 goto out_unlock;
b112889c
AM		 3219 case NL80211_IFTYPE_P2P_DEVICE:
3220 /* handle below */
3221 break;
3222 default:
3223 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3224 ret = -EINVAL;
3225 goto out_unlock;
8ca151b5
JB		 3226 }
3227
31d385ae
IP		 3228 for (i = 0; i < NUM_PHY_CTX; i++) {
3229 phy_ctxt = &mvm->phy_ctxts[i];
3230 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3231 continue;
3232
3233 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3234 /*
3235 * Unbind the P2P_DEVICE from the current PHY context,
3236 * and if the PHY context is not used remove it.
3237 */
3238 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3239 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3240 goto out_unlock;
3241
3242 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3243
3244 /* Bind the P2P_DEVICE to the current PHY Context */
3245 mvmvif->phy_ctxt = phy_ctxt;
3246
3247 ret = iwl_mvm_binding_add_vif(mvm, vif);
3248 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3249 goto out_unlock;
3250
3251 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3252 goto schedule_time_event;
3253 }
3254 }
3255
3256 /* Need to update the PHY context only if the ROC channel changed */
3257 if (channel == mvmvif->phy_ctxt->channel)
3258 goto schedule_time_event;
3259
8ca151b5 3260 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3261
31d385ae
IP		 3262 /*
3263 * Change the PHY context configuration as it is currently referenced
3264 * only by the P2P Device MAC
3265 */
3266 if (mvmvif->phy_ctxt->ref == 1) {
3267 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3268 &chandef, 1, 1);
3269 if (ret)
3270 goto out_unlock;
3271 } else {
3272 /*
3273 * The PHY context is shared with other MACs. Need to remove the
3274 * P2P Device from the binding, allocate an new PHY context and
3275 * create a new binding
3276 */
3277 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3278 if (!phy_ctxt) {
3279 ret = -ENOSPC;
3280 goto out_unlock;
3281 }
3282
3283 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3284 1, 1);
3285 if (ret) {
3286 IWL_ERR(mvm, "Failed to change PHY context\n");
3287 goto out_unlock;
3288 }
3289
3290 /* Unbind the P2P_DEVICE from the current PHY context */
3291 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3292 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3293 goto out_unlock;
3294
3295 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3296
3297 /* Bind the P2P_DEVICE to the new allocated PHY context */
3298 mvmvif->phy_ctxt = phy_ctxt;
3299
3300 ret = iwl_mvm_binding_add_vif(mvm, vif);
3301 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3302 goto out_unlock;
3303
3304 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3305 }
3306
3307schedule_time_event:
8ca151b5 3308 /* Schedule the time events */
e635c797 3309 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3310
31d385ae 3311out_unlock:
8ca151b5
JB		 3312 mutex_unlock(&mvm->mutex);
3313 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3314 return ret;
3315}
3316
3317static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3318{
3319 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3320
3321 IWL_DEBUG_MAC80211(mvm, "enter\n");
3322
3323 mutex_lock(&mvm->mutex);
bf5da87f 3324 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3325 mutex_unlock(&mvm->mutex);
3326
3327 IWL_DEBUG_MAC80211(mvm, "leave\n");
3328 return 0;
3329}
3330
b08c1d97
LC		 3331static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3332 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3333{
fe0f2de3
IP		 3334 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3335 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3336 int ret;
3337
b08c1d97
LC		 3338 lockdep_assert_held(&mvm->mutex);
3339
53a9d61e 3340 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3341
fe0f2de3
IP		 3342 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3343 if (!phy_ctxt) {
3344 ret = -ENOSPC;
3345 goto out;
3346 }
8ca151b5 3347
dcbc3e1a 3348 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3349 ctx->rx_chains_static,
3350 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3351 if (ret) {
3352 IWL_ERR(mvm, "Failed to add PHY context\n");
3353 goto out;
3354 }
3355
53a9d61e 3356 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3357 *phy_ctxt_id = phy_ctxt->id;
3358out:
b08c1d97
LC		 3359 return ret;
3360}
3361
3362static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3363 struct ieee80211_chanctx_conf *ctx)
3364{
3365 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3366 int ret;
3367
3368 mutex_lock(&mvm->mutex);
3369 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3370 mutex_unlock(&mvm->mutex);
b08c1d97 3371
8ca151b5
JB		 3372 return ret;
3373}
3374
b08c1d97
LC		 3375static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3376 struct ieee80211_chanctx_conf *ctx)
3377{
3378 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3379 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3380
3381 lockdep_assert_held(&mvm->mutex);
3382
3383 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3384}
3385
8ca151b5
JB		 3386static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3387 struct ieee80211_chanctx_conf *ctx)
3388{
3389 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3390
3391 mutex_lock(&mvm->mutex);
b08c1d97 3392 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3393 mutex_unlock(&mvm->mutex);
3394}
3395
3396static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3397 struct ieee80211_chanctx_conf *ctx,
3398 u32 changed)
3399{
3400 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3401 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3402 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3403
31d385ae
IP		 3404 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3405 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3406 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3407 IEEE80211_CHANCTX_CHANGE_RADAR |
3408 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3409 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3410 phy_ctxt->ref, changed))
3411 return;
3412
8ca151b5 3413 mutex_lock(&mvm->mutex);
4d66449a 3414 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3415 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3416 ctx->rx_chains_static,
3417 ctx->rx_chains_dynamic);
3418 mutex_unlock(&mvm->mutex);
3419}
3420
b08c1d97
LC		 3421static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3422 struct ieee80211_vif *vif,
f0c97783
LC		 3423 struct ieee80211_chanctx_conf *ctx,
3424 bool switching_chanctx)
8ca151b5 3425{
fe0f2de3
IP		 3426 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3427 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3428 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3429 int ret;
3430
b08c1d97 3431 lockdep_assert_held(&mvm->mutex);
8ca151b5 3432
fe0f2de3 3433 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3434
3435 switch (vif->type) {
3436 case NL80211_IFTYPE_AP:
4741dd04
LC		 3437 /* only needed if we're switching chanctx (i.e. during CSA) */
3438 if (switching_chanctx) {
bd3398e2
AO		 3439 mvmvif->ap_ibss_active = true;
3440 break;
3441 }
5023d966 3442 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3443 /*
3444 * The AP binding flow is handled as part of the start_ap flow
5023d966 3445 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3446 */
3447 ret = 0;
b08c1d97 3448 goto out;
8ca151b5 3449 case NL80211_IFTYPE_STATION:
2533edce 3450 break;
8ca151b5 3451 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3452 /* always disable PS when a monitor interface is active */
3453 mvmvif->ps_disabled = true;
8ca151b5
JB		 3454 break;
3455 default:
3456 ret = -EINVAL;
b08c1d97 3457 goto out;
8ca151b5
JB		 3458 }
3459
3460 ret = iwl_mvm_binding_add_vif(mvm, vif);
3461 if (ret)
b08c1d97 3462 goto out;
8ca151b5
JB		 3463
3464 /*
92d85562
AB		 3465 * Power state must be updated before quotas,
3466 * otherwise fw will complain.
3467 */
999609f1 3468 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3469
3470 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3471 * interfaces. For the other types, the bss_info changed flow
3472 * will handle quota settings.
3473 */
3474 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3475 mvmvif->monitor_active = true;
7754ae79 3476 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3477 if (ret)
3478 goto out_remove_binding;
0e39eb03
CRI		 3479
3480 ret = iwl_mvm_add_snif_sta(mvm, vif);
3481 if (ret)
3482 goto out_remove_binding;
3483
8ca151b5
JB		 3484 }
3485
bd3398e2 3486 /* Handle binding during CSA */
a57c688d 3487 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3488 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3489 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3490 }
3491
4741dd04 3492 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3493 u32 duration = 2 * vif->bss_conf.beacon_int;
3494
3495 /* iwl_mvm_protect_session() reads directly from the
3496 * device (the system time), so make sure it is
3497 * available.
3498 */
3499 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3500 if (ret)
3501 goto out_remove_binding;
3502
3503 /* Protect the session to make sure we hear the first
3504 * beacon on the new channel.
3505 */
3506 iwl_mvm_protect_session(mvm, vif, duration, duration,
3507 vif->bss_conf.beacon_int / 2,
3508 true);
3509
3510 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3511
7754ae79 3512 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3513 }
3514
b08c1d97 3515 goto out;
8ca151b5 3516
b08c1d97 3517out_remove_binding:
8ca151b5 3518 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3519 iwl_mvm_power_update_mac(mvm);
b08c1d97 3520out:
8ca151b5
JB		 3521 if (ret)
3522 mvmvif->phy_ctxt = NULL;
3523 return ret;
3524}
b08c1d97
LC		 3525static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3526 struct ieee80211_vif *vif,
3527 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3528{
3529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3530 int ret;
8ca151b5
JB		 3531
3532 mutex_lock(&mvm->mutex);
f0c97783 3533 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3534 mutex_unlock(&mvm->mutex);
3535
3536 return ret;
3537}
3538
3539static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3540 struct ieee80211_vif *vif,
f0c97783
LC		 3541 struct ieee80211_chanctx_conf *ctx,
3542 bool switching_chanctx)
b08c1d97
LC		 3543{
3544 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3545 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3546
3547 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3548
3549 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3550
8ca151b5 3551 switch (vif->type) {
5023d966 3552 case NL80211_IFTYPE_ADHOC:
b08c1d97 3553 goto out;
8ca151b5 3554 case NL80211_IFTYPE_MONITOR:
1e1391ca 3555 mvmvif->monitor_active = false;
2533edce 3556 mvmvif->ps_disabled = false;
0e39eb03 3557 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3558 break;
bd3398e2
AO		 3559 case NL80211_IFTYPE_AP:
3560 /* This part is triggered only during CSA */
4741dd04 3561 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3562 goto out;
bd3398e2 3563
7ef0aab6
AO		 3564 mvmvif->csa_countdown = false;
3565
003e5236
AO		 3566 /* Set CS bit on all the stations */
3567 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3568
3569 /* Save blocked iface, the timeout is set on the next beacon */
3570 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3571
bd3398e2 3572 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3573 break;
3574 case NL80211_IFTYPE_STATION:
3575 if (!switching_chanctx)
3576 break;
3577
3578 disabled_vif = vif;
3579
3dfd3a97 3580 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3581 break;
8ca151b5
JB		 3582 default:
3583 break;
3584 }
3585
7754ae79 3586 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3587 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3588
b08c1d97 3589out:
a11e144e 3590 mvmvif->phy_ctxt = NULL;
999609f1 3591 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3592}
3593
3594static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3595 struct ieee80211_vif *vif,
3596 struct ieee80211_chanctx_conf *ctx)
3597{
3598 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3599
3600 mutex_lock(&mvm->mutex);
f0c97783 3601 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3602 mutex_unlock(&mvm->mutex);
3603}
3604
50cc9574
LC		 3605static int
3606iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3607 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3608{
b08c1d97
LC		 3609 int ret;
3610
b08c1d97 3611 mutex_lock(&mvm->mutex);
f0c97783 3612 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3613 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3614
3615 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3616 if (ret) {
3617 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3618 goto out_reassign;
3619 }
3620
f0c97783
LC		 3621 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3622 true);
b08c1d97
LC		 3623 if (ret) {
3624 IWL_ERR(mvm,
3625 "failed to assign new_ctx during channel switch\n");
3626 goto out_remove;
3627 }
3628
f697267f
AN		 3629 /* we don't support TDLS during DCM - can be caused by channel switch */
3630 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3631 iwl_mvm_teardown_tdls_peers(mvm);
3632
b08c1d97
LC		 3633 goto out;
3634
3635out_remove:
3636 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3637
3638out_reassign:
6fd1fb63 3639 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3640 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3641 goto out_restart;
3642 }
3643
6fd1fb63
LC		 3644 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3645 true)) {
b08c1d97
LC		 3646 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3647 goto out_restart;
3648 }
3649
3650 goto out;
3651
3652out_restart:
3653 /* things keep failing, better restart the hw */
3654 iwl_mvm_nic_restart(mvm, false);
3655
3656out:
3657 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3658
3659 return ret;
3660}
3661
48a256e8
LC		 3662static int
3663iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3664 struct ieee80211_vif_chanctx_switch *vifs)
3665{
3666 int ret;
3667
3668 mutex_lock(&mvm->mutex);
3669 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3670
3671 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3672 true);
3673 if (ret) {
3674 IWL_ERR(mvm,
3675 "failed to assign new_ctx during channel switch\n");
3676 goto out_reassign;
3677 }
3678
3679 goto out;
3680
3681out_reassign:
3682 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3683 true)) {
3684 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3685 goto out_restart;
3686 }
3687
3688 goto out;
3689
3690out_restart:
3691 /* things keep failing, better restart the hw */
3692 iwl_mvm_nic_restart(mvm, false);
3693
3694out:
3695 mutex_unlock(&mvm->mutex);
3696
3697 return ret;
3698}
3699
50cc9574
LC		 3700static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3701 struct ieee80211_vif_chanctx_switch *vifs,
3702 int n_vifs,
3703 enum ieee80211_chanctx_switch_mode mode)
3704{
3705 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3706 int ret;
3707
3708 /* we only support a single-vif right now */
3709 if (n_vifs > 1)
3710 return -EOPNOTSUPP;
3711
3712 switch (mode) {
3713 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3714 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3715 break;
3716 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3717 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3718 break;
3719 default:
3720 ret = -EOPNOTSUPP;
3721 break;
3722 }
3723
b08c1d97
LC		 3724 return ret;
3725}
3726
2f0282db
JB		 3727static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3728{
3729 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3730
3731 return mvm->ibss_manager;
3732}
3733
8ca151b5
JB		 3734static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3735 struct ieee80211_sta *sta,
3736 bool set)
3737{
3738 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3739 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3740
3741 if (!mvm_sta || !mvm_sta->vif) {
3742 IWL_ERR(mvm, "Station is not associated to a vif\n");
3743 return -EINVAL;
3744 }
3745
3746 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3747}
3748
507cadf2
DS		 3749#ifdef CONFIG_NL80211_TESTMODE
3750static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3751 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3752 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3753 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3754};
3755
3756static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3757 struct ieee80211_vif *vif,
3758 void *data, int len)
3759{
3760 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3761 int err;
3762 u32 noa_duration;
3763
fceb6435
JB		 3764 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3765 NULL);
507cadf2
DS		 3766 if (err)
3767 return err;
3768
3769 if (!tb[IWL_MVM_TM_ATTR_CMD])
3770 return -EINVAL;
3771
3772 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3773 case IWL_MVM_TM_CMD_SET_NOA:
3774 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3775 !vif->bss_conf.enable_beacon ||
3776 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3777 return -EINVAL;
3778
3779 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3780 if (noa_duration >= vif->bss_conf.beacon_int)
3781 return -EINVAL;
3782
3783 mvm->noa_duration = noa_duration;
3784 mvm->noa_vif = vif;
3785
7754ae79 3786 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3787 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3788 /* must be associated client vif - ignore authorized */
3789 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3790 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3791 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3792 return -EINVAL;
3793
3794 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3795 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3796 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3797 }
3798
3799 return -EOPNOTSUPP;
3800}
3801
3802static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3803 struct ieee80211_vif *vif,
3804 void *data, int len)
3805{
3806 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3807 int err;
3808
3809 mutex_lock(&mvm->mutex);
3810 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3811 mutex_unlock(&mvm->mutex);
3812
3813 return err;
3814}
3815#endif
3816
622e3f9b
LC		 3817static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3818 struct ieee80211_vif *vif,
3819 struct ieee80211_channel_switch *chsw)
3820{
3821 /* By implementing this operation, we prevent mac80211 from
3822 * starting its own channel switch timer, so that we can call
3823 * ieee80211_chswitch_done() ourselves at the right time
3824 * (which is when the absence time event starts).
3825 */
3826
3827 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3828 "dummy channel switch op\n");
3829}
3830
f028905c
LC		 3831static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3832 struct ieee80211_vif *vif,
3833 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3834{
3835 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3836 struct ieee80211_vif *csa_vif;
f6c34820 3837 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3838 u32 apply_time;
f028905c 3839 int ret;
bd3398e2
AO		 3840
3841 mutex_lock(&mvm->mutex);
664322fa 3842
81d62d5a
JB		 3843 mvmvif->csa_failed = false;
3844
6b20d774 3845 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3846 chsw->chandef.center_freq1);
6b20d774 3847
7174beb6
JB		 3848 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3849 ieee80211_vif_to_wdev(vif),
3850 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3851
6b20d774
LC		 3852 switch (vif->type) {
3853 case NL80211_IFTYPE_AP:
3854 csa_vif =
3855 rcu_dereference_protected(mvm->csa_vif,
3856 lockdep_is_held(&mvm->mutex));
3857 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3858 "Another CSA is already in progress")) {
3859 ret = -EBUSY;
3860 goto out_unlock;
3861 }
3862
d3a108a4
AO		 3863 /* we still didn't unblock tx. prevent new CS meanwhile */
3864 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3865 lockdep_is_held(&mvm->mutex))) {
3866 ret = -EBUSY;
3867 goto out_unlock;
3868 }
3869
6b20d774 3870 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3871
7ef0aab6
AO		 3872 if (WARN_ONCE(mvmvif->csa_countdown,
3873 "Previous CSA countdown didn't complete")) {
3874 ret = -EBUSY;
3875 goto out_unlock;
3876 }
3877
d3a108a4
AO		 3878 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3879
6b20d774 3880 break;
dc88b4ba 3881 case NL80211_IFTYPE_STATION:
03098268
AE		 3882 if (mvmvif->lqm_active)
3883 iwl_mvm_send_lqm_cmd(vif,
3884 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3885 0, 0);
3886
4500e133
LC		 3887 /* Schedule the time event to a bit before beacon 1,
3888 * to make sure we're in the new channel when the
f5d8f50f
IP		 3889 * GO/AP arrives. In case count <= 1 immediately schedule the
3890 * TE (this might result with some packet loss or connection
3891 * loss).
4500e133 3892 */
f5d8f50f
IP		 3893 if (chsw->count <= 1)
3894 apply_time = 0;
3895 else
3896 apply_time = chsw->device_timestamp +
3897 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3898 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3899
3900 if (chsw->block_tx)
3901 iwl_mvm_csa_client_absent(mvm, vif);
3902
4500e133 3903 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3904 apply_time);
c6e0a3e0
LC		 3905 if (mvmvif->bf_data.bf_enabled) {
3906 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3907 if (ret)
3908 goto out_unlock;
3909 }
3910
dc88b4ba 3911 break;
6b20d774
LC		 3912 default:
3913 break;
3914 }
bd3398e2 3915
f6c34820
LC		 3916 mvmvif->ps_disabled = true;
3917
3918 ret = iwl_mvm_power_update_ps(mvm);
3919 if (ret)
3920 goto out_unlock;
f028905c 3921
e198f5e7
AN		 3922 /* we won't be on this channel any longer */
3923 iwl_mvm_teardown_tdls_peers(mvm);
3924
bd3398e2
AO		 3925out_unlock:
3926 mutex_unlock(&mvm->mutex);
f028905c
LC		 3927
3928 return ret;
bd3398e2
AO		 3929}
3930
f6c34820
LC		 3931static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3932 struct ieee80211_vif *vif)
3933{
3934 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3936 int ret;
3937
3938 mutex_lock(&mvm->mutex);
3939
81d62d5a
JB		 3940 if (mvmvif->csa_failed) {
3941 mvmvif->csa_failed = false;
3942 ret = -EIO;
3943 goto out_unlock;
3944 }
3945
a57c688d
LC		 3946 if (vif->type == NL80211_IFTYPE_STATION) {
3947 struct iwl_mvm_sta *mvmsta;
3948
3949 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3950 mvmvif->ap_sta_id);
3951
3952 if (WARN_ON(!mvmsta)) {
3953 ret = -EIO;
3954 goto out_unlock;
3955 }
3956
3957 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3958
3959 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3960
3961 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3962 if (ret)
3963 goto out_unlock;
686e7fe1
LC		 3964
3965 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3966 }
3967
f6c34820
LC		 3968 mvmvif->ps_disabled = false;
3969
3970 ret = iwl_mvm_power_update_ps(mvm);
3971
a57c688d 3972out_unlock:
f6c34820
LC		 3973 mutex_unlock(&mvm->mutex);
3974
3975 return ret;
3976}
3977
6110d9e5
DS		 3978static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
3979{
3980 if (drop) {
3981 if (iwl_mvm_has_new_tx_api(mvm))
3982 /* TODO new tx api */
3983 WARN_ONCE(1,
3984 "Need to implement flush TX queue\n");
3985 else
3986 iwl_mvm_flush_tx_path(mvm,
3987 iwl_mvm_flushable_queues(mvm) & queues,
3988 0);
3989 } else {
3990 if (iwl_mvm_has_new_tx_api(mvm)) {
3991 struct ieee80211_sta *sta;
3992 int i;
3993
3994 mutex_lock(&mvm->mutex);
3995
3996 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
3997 sta = rcu_dereference_protected(
3998 mvm->fw_id_to_mac_id[i],
3999 lockdep_is_held(&mvm->mutex));
4000 if (IS_ERR_OR_NULL(sta))
4001 continue;
4002
4003 iwl_mvm_wait_sta_queues_empty(mvm,
4004 iwl_mvm_sta_from_mac80211(sta));
4005 }
4006
4007 mutex_unlock(&mvm->mutex);
4008 } else {
4009 iwl_trans_wait_tx_queues_empty(mvm->trans,
4010 queues);
4011 }
4012 }
4013}
4014
c5b0e7c0
EG		 4015static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4016 struct ieee80211_vif *vif, u32 queues, bool drop)
4017{
4018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4019 struct iwl_mvm_vif *mvmvif;
4020 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 4021 struct ieee80211_sta *sta;
4022 int i;
4023 u32 msk = 0;
c5b0e7c0 4024
6110d9e5
DS		 4025 if (!vif) {
4026 iwl_mvm_flush_no_vif(mvm, queues, drop);
4027 return;
4028 }
4029
4030 if (vif->type != NL80211_IFTYPE_STATION)
c5b0e7c0
EG		 4031 return;
4032
24afba76 4033 /* Make sure we're done with the deferred traffic before flushing */
c8f54701 4034 flush_work(&mvm->add_stream_wk);
24afba76 4035
c5b0e7c0
EG		 4036 mutex_lock(&mvm->mutex);
4037 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 4038
a0f6bf2a 4039 /* flush the AP-station and all TDLS peers */
0ae98812 4040 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN		 4041 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4042 lockdep_is_held(&mvm->mutex));
4043 if (IS_ERR_OR_NULL(sta))
4044 continue;
4045
4046 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4047 if (mvmsta->vif != vif)
4048 continue;
4049
4050 /* make sure only TDLS peers or the AP are flushed */
4051 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4052
d49394a1
SS		 4053 if (drop) {
4054 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4055 IWL_ERR(mvm, "flush request fail\n");
4056 } else {
4057 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS		 4058 if (iwl_mvm_has_new_tx_api(mvm))
4059 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4060 }
480acbce 4061 }
c5b0e7c0 4062
d49394a1 4063 mutex_unlock(&mvm->mutex);
4e6c48e0 4064
d49394a1
SS		 4065 /* this can take a while, and we may need/want other operations
4066 * to succeed while doing this, so do it without the mutex held
4067 */
d6d517b7 4068 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4069 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG		 4070}
4071
91a8bcde
JB		 4072static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4073 struct survey_info *survey)
4074{
4075 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4076 int ret;
4077
4078 memset(survey, 0, sizeof(*survey));
4079
4080 /* only support global statistics right now */
4081 if (idx != 0)
4082 return -ENOENT;
4083
280a3efa
JB		 4084 if (!fw_has_capa(&mvm->fw->ucode_capa,
4085 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 4086 return -ENOENT;
4087
4088 mutex_lock(&mvm->mutex);
4089
aab6930d 4090 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4091 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4092 if (ret)
4093 goto out;
4094 }
4095
4096 survey->filled = SURVEY_INFO_TIME |
4097 SURVEY_INFO_TIME_RX |
4098 SURVEY_INFO_TIME_TX |
4099 SURVEY_INFO_TIME_SCAN;
4100 survey->time = mvm->accu_radio_stats.on_time_rf +
4101 mvm->radio_stats.on_time_rf;
4102 do_div(survey->time, USEC_PER_MSEC);
4103
4104 survey->time_rx = mvm->accu_radio_stats.rx_time +
4105 mvm->radio_stats.rx_time;
4106 do_div(survey->time_rx, USEC_PER_MSEC);
4107
4108 survey->time_tx = mvm->accu_radio_stats.tx_time +
4109 mvm->radio_stats.tx_time;
4110 do_div(survey->time_tx, USEC_PER_MSEC);
4111
4112 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4113 mvm->radio_stats.on_time_scan;
4114 do_div(survey->time_scan, USEC_PER_MSEC);
4115
10a7c028 4116 ret = 0;
91a8bcde
JB		 4117 out:
4118 mutex_unlock(&mvm->mutex);
4119 return ret;
4120}
4121
33cef925
JB		 4122static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4123 struct ieee80211_vif *vif,
4124 struct ieee80211_sta *sta,
4125 struct station_info *sinfo)
4126{
4127 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4128 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4129 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4130
988b5968
SS		 4131 if (mvmsta->avg_energy) {
4132 sinfo->signal_avg = mvmsta->avg_energy;
4133 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4134 }
4135
280a3efa
JB		 4136 if (!fw_has_capa(&mvm->fw->ucode_capa,
4137 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4138 return;
4139
4140 /* if beacon filtering isn't on mac80211 does it anyway */
4141 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4142 return;
4143
4144 if (!vif->bss_conf.assoc)
4145 return;
4146
4147 mutex_lock(&mvm->mutex);
4148
4149 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4150 goto unlock;
4151
4152 if (iwl_mvm_request_statistics(mvm, false))
4153 goto unlock;
4154
4155 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4156 mvmvif->beacon_stats.accu_num_beacons;
4157 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4158 if (mvmvif->beacon_stats.avg_signal) {
4159 /* firmware only reports a value after RXing a few beacons */
4160 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4161 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4162 }
4163 unlock:
4164 mutex_unlock(&mvm->mutex);
4165}
4166
4203263d
EG		 4167static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4168 struct ieee80211_vif *vif,
4169 const struct ieee80211_event *event)
d42f5350 4170{
7174beb6
JB		 4171#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4172 do { \
4173 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4174 break; \
4175 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG		 4176 } while (0)
4177
d42f5350
EG		 4178 struct iwl_fw_dbg_trigger_tlv *trig;
4179 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4180
4181 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4182 return;
4183
d42f5350
EG		 4184 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4185 trig_mlme = (void *)trig->data;
7174beb6
JB		 4186 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4187 ieee80211_vif_to_wdev(vif), trig))
d42f5350
EG		 4188 return;
4189
d42f5350
EG		 4190 if (event->u.mlme.data == ASSOC_EVENT) {
4191 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4192 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG		 4193 "DENIED ASSOC: reason %d",
4194 event->u.mlme.reason);
4195 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4196 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG		 4197 "ASSOC TIMEOUT");
4198 } else if (event->u.mlme.data == AUTH_EVENT) {
4199 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4200 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG		 4201 "DENIED AUTH: reason %d",
4202 event->u.mlme.reason);
4203 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4204 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG		 4205 "AUTH TIMEOUT");
4206 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4207 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG		 4208 "DEAUTH RX %d", event->u.mlme.reason);
4209 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4210 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG		 4211 "DEAUTH TX %d", event->u.mlme.reason);
4212 }
4213#undef CHECK_MLME_TRIGGER
4214}
4215
4203263d
EG		 4216static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4217 struct ieee80211_vif *vif,
4218 const struct ieee80211_event *event)
4219{
4220 struct iwl_fw_dbg_trigger_tlv *trig;
4221 struct iwl_fw_dbg_trigger_ba *ba_trig;
4222
4223 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4224 return;
4225
4226 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4227 ba_trig = (void *)trig->data;
7174beb6
JB		 4228 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4229 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4230 return;
4231
4232 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4233 return;
4234
7174beb6
JB		 4235 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4236 "BAR received from %pM, tid %d, ssn %d",
4237 event->u.ba.sta->addr, event->u.ba.tid,
4238 event->u.ba.ssn);
4203263d
EG		 4239}
4240
4241static void
4242iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4243 struct ieee80211_vif *vif,
4244 const struct ieee80211_event *event)
4245{
4246 struct iwl_fw_dbg_trigger_tlv *trig;
4247 struct iwl_fw_dbg_trigger_ba *ba_trig;
4248
4249 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4250 return;
4251
4252 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4253 ba_trig = (void *)trig->data;
7174beb6
JB		 4254 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4255 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4256 return;
4257
4258 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4259 return;
4260
7174beb6
JB		 4261 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4262 "Frame from %pM timed out, tid %d",
4263 event->u.ba.sta->addr, event->u.ba.tid);
4203263d
EG		 4264}
4265
4266static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4267 struct ieee80211_vif *vif,
4268 const struct ieee80211_event *event)
4269{
4270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4271
4272 switch (event->type) {
4273 case MLME_EVENT:
4274 iwl_mvm_event_mlme_callback(mvm, vif, event);
4275 break;
4276 case BAR_RX_EVENT:
4277 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4278 break;
4279 case BA_FRAME_TIMEOUT:
4280 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4281 break;
4282 default:
4283 break;
4284 }
4285}
4286
d0ff5d22
SS		 4287void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4288 struct iwl_mvm_internal_rxq_notif *notif,
4289 u32 size)
0636b938 4290{
0636b938
SS		 4291 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4292 int ret;
4293
4294 lockdep_assert_held(&mvm->mutex);
4295
bc029469 4296 /* TODO - remove a000 disablement when we have RXQ config API */
c8c017a6
JB		 4297 if (!iwl_mvm_has_new_rx_api(mvm) ||
4298 mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000)
0636b938
SS		 4299 return;
4300
d0ff5d22
SS		 4301 notif->cookie = mvm->queue_sync_cookie;
4302
4303 if (notif->sync)
4304 atomic_set(&mvm->queue_sync_counter,
4305 mvm->trans->num_rx_queues);
0636b938 4306
d0ff5d22 4307 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4308 if (ret) {
4309 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4310 goto out;
4311 }
d0ff5d22 4312
6ad04359 4313 if (notif->sync) {
3a732c65 4314 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB		 4315 atomic_read(&mvm->queue_sync_counter) == 0 ||
4316 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4317 HZ);
6ad04359
JB		 4318 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4319 }
0636b938
SS		 4320
4321out:
4322 atomic_set(&mvm->queue_sync_counter, 0);
4323 mvm->queue_sync_cookie++;
4324}
4325
4326static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4327{
4328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4329 struct iwl_mvm_internal_rxq_notif data = {
4330 .type = IWL_MVM_RXQ_EMPTY,
4331 .sync = 1,
4332 };
0636b938
SS		 4333
4334 mutex_lock(&mvm->mutex);
d0ff5d22 4335 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4336 mutex_unlock(&mvm->mutex);
4337}
4338
e5209263 4339const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4340 .tx = iwl_mvm_mac_tx,
4341 .ampdu_action = iwl_mvm_mac_ampdu_action,
4342 .start = iwl_mvm_mac_start,
cf2c92d8 4343 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4344 .stop = iwl_mvm_mac_stop,
4345 .add_interface = iwl_mvm_mac_add_interface,
4346 .remove_interface = iwl_mvm_mac_remove_interface,
4347 .config = iwl_mvm_mac_config,
e59647ea 4348 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4349 .configure_filter = iwl_mvm_configure_filter,
effd1929 4350 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4351 .bss_info_changed = iwl_mvm_bss_info_changed,
4352 .hw_scan = iwl_mvm_mac_hw_scan,
4353 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4354 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4355 .sta_state = iwl_mvm_mac_sta_state,
4356 .sta_notify = iwl_mvm_mac_sta_notify,
4357 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4358 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4359 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4360 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4361 .conf_tx = iwl_mvm_mac_conf_tx,
4362 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4363 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4364 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4365 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4366 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4367 .set_key = iwl_mvm_mac_set_key,
4368 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4369 .remain_on_channel = iwl_mvm_roc,
4370 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4371 .add_chanctx = iwl_mvm_add_chanctx,
4372 .remove_chanctx = iwl_mvm_remove_chanctx,
4373 .change_chanctx = iwl_mvm_change_chanctx,
4374 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4375 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4376 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4377
5023d966
JB		 4378 .start_ap = iwl_mvm_start_ap_ibss,
4379 .stop_ap = iwl_mvm_stop_ap_ibss,
4380 .join_ibss = iwl_mvm_start_ap_ibss,
4381 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4382
2f0282db
JB		 4383 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4384
8ca151b5
JB		 4385 .set_tim = iwl_mvm_set_tim,
4386
622e3f9b 4387 .channel_switch = iwl_mvm_channel_switch,
f028905c 4388 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4389 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4390
1d3c3f63
AN		 4391 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4392 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4393 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4394
d42f5350
EG		 4395 .event_callback = iwl_mvm_mac_event_callback,
4396
0636b938
SS		 4397 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4398
507cadf2
DS		 4399 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4400
8ca151b5
JB		 4401#ifdef CONFIG_PM_SLEEP
4402 /* look at d3.c */
4403 .suspend = iwl_mvm_suspend,
4404 .resume = iwl_mvm_resume,
4405 .set_wakeup = iwl_mvm_set_wakeup,
4406 .set_rekey_data = iwl_mvm_set_rekey_data,
4407#if IS_ENABLED(CONFIG_IPV6)
4408 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4409#endif
4410 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4411#endif
91a8bcde 4412 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4413 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4414};
Linux 6.x block layer and io_uring tree(s)