]> git.ipfire.org Git - thirdparty/linux.git/blame - drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
projects / thirdparty / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: mvm: refactor iwl_mvm_flush_no_vif
[thirdparty/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
15 *
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * USA
25 *
26 * The full GNU General Public License is included in this distribution
410dc5aa 27 * in the file called COPYING.
8ca151b5
JB		 28 *
29 * Contact Information:
cb2f8277 30 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
32 *
33 * BSD LICENSE
34 *
51368bf7 35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
26d6c16b
SS		 36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
8ca151b5
JB		 38 * All rights reserved.
39 *
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
42 * are met:
43 *
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
49 * distribution.
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
53 *
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *
66 *****************************************************************************/
67#include <linux/kernel.h>
68#include <linux/slab.h>
69#include <linux/skbuff.h>
70#include <linux/netdevice.h>
71#include <linux/etherdevice.h>
f0c2646a 72#include <linux/ip.h>
2ee8f021 73#include <linux/if_arp.h>
2f89a5d7 74#include <linux/time.h>
8ca151b5 75#include <net/mac80211.h>
7b1dd048 76#include <net/ieee80211_radiotap.h>
f0c2646a 77#include <net/tcp.h>
8ca151b5
JB		 78
79#include "iwl-op-mode.h"
80#include "iwl-io.h"
81#include "mvm.h"
82#include "sta.h"
83#include "time-event.h"
84#include "iwl-eeprom-parse.h"
8ca151b5 85#include "iwl-phy-db.h"
507cadf2 86#include "testmode.h"
d962f9b1 87#include "fw/error-dump.h"
655e6d6d 88#include "iwl-prph.h"
88931cc9 89#include "iwl-nvm-parse.h"
8ca151b5
JB		 90
91static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 {
93 .max = 1,
8eb38710 94 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 95 },
3c15a0fb
JB		 96 {
97 .max = 1,
8eb38710
IP		 98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 100 BIT(NL80211_IFTYPE_P2P_GO),
101 },
102 {
103 .max = 1,
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 },
8ca151b5
JB		 106};
107
108static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 {
2624a5ca 110 .num_different_channels = 2,
8ca151b5
JB		 111 .max_interfaces = 3,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 },
115};
116
f0c2646a
JB		 117#ifdef CONFIG_PM_SLEEP
118static const struct nl80211_wowlan_tcp_data_token_feature
119iwl_mvm_wowlan_tcp_token_feature = {
120 .min_len = 0,
121 .max_len = 255,
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123};
124
125static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
136 .seq = true,
137};
138#endif
139
77736923 140#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 141/*
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
148 * be skipped.
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
151 */
152enum {
153 BC_FILTER_MAGIC_NONE = 0,
154 BC_FILTER_MAGIC_IP,
155 BC_FILTER_MAGIC_MAC,
156};
157
77736923
EP		 158static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 {
160 /* arp */
161 .discard = 0,
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 .attrs = {
164 {
165 /* frame type - arp, hw type - ethernet */
166 .offset_type =
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
171 },
2ee8f021
EP		 172 {
173 /* arp dest ip */
174 .offset_type =
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
179 ETH_ALEN,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
183 },
184 },
185 },
186 {
187 /* dhcp offer bcast */
188 .discard = 0,
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 .attrs = {
191 {
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
197 },
198 {
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .offset = 38,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 },
77736923
EP		 206 },
207 },
208 /* last filter must be empty */
209 {},
210};
211#endif
212
7498cf4c
EP		 213void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214{
7bb426ea 215 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 216 return;
217
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 222 iwl_trans_ref(mvm->trans);
223}
224
225void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226{
7bb426ea 227 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 228 return;
229
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9 231 spin_lock_bh(&mvm->refs_lock);
16c45822
SS		 232 if (WARN_ON(!mvm->refs[ref_type])) {
233 spin_unlock_bh(&mvm->refs_lock);
234 return;
235 }
236 mvm->refs[ref_type]--;
576eeee9 237 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 238 iwl_trans_unref(mvm->trans);
239}
240
576eeee9
EP		 241static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
242 enum iwl_mvm_ref_type except_ref)
7498cf4c 243{
576eeee9 244 int i, j;
7498cf4c 245
7bb426ea 246 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 247 return;
248
576eeee9
EP		 249 spin_lock_bh(&mvm->refs_lock);
250 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
251 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 252 continue;
253
576eeee9
EP		 254 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
255 i, mvm->refs[i]);
256 for (j = 0; j < mvm->refs[i]; j++)
257 iwl_trans_unref(mvm->trans);
258 mvm->refs[i] = 0;
7498cf4c 259 }
576eeee9 260 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 261}
262
f4cf8680
EP		 263bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
264{
265 int i;
266 bool taken = false;
267
268 if (!iwl_mvm_is_d0i3_supported(mvm))
269 return true;
270
271 spin_lock_bh(&mvm->refs_lock);
272 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
273 if (mvm->refs[i]) {
274 taken = true;
275 break;
276 }
277 }
278 spin_unlock_bh(&mvm->refs_lock);
279
280 return taken;
281}
282
576eeee9 283int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 284{
285 iwl_mvm_ref(mvm, ref_type);
286
287 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
288 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
289 HZ)) {
290 WARN_ON_ONCE(1);
291 iwl_mvm_unref(mvm, ref_type);
292 return -EIO;
293 }
294
295 return 0;
296}
297
fe0f2de3
IP		 298static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
299{
300 int i;
301
302 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
303 for (i = 0; i < NUM_PHY_CTX; i++) {
304 mvm->phy_ctxts[i].id = i;
305 mvm->phy_ctxts[i].ref = 0;
306 }
307}
308
88931cc9 309struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 310 const char *alpha2,
47c8b154
JD		 311 enum iwl_mcc_source src_id,
312 bool *changed)
88931cc9
AN		 313{
314 struct ieee80211_regdomain *regd = NULL;
315 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
317 struct iwl_mcc_update_resp *resp;
318
319 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
320
8ba2d7a1 321 lockdep_assert_held(&mvm->mutex);
88931cc9 322
8ba2d7a1 323 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 324 if (IS_ERR_OR_NULL(resp)) {
325 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 326 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 327 goto out;
88931cc9
AN		 328 }
329
47c8b154
JD		 330 if (changed)
331 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
332
162ee3c9 333 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 334 __le32_to_cpu(resp->n_channels),
335 resp->channels,
336 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 337 /* Store the return source id */
338 src_id = resp->source_id;
88931cc9
AN		 339 kfree(resp);
340 if (IS_ERR_OR_NULL(regd)) {
341 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 342 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 343 goto out;
88931cc9
AN		 344 }
345
8ba2d7a1
EH		 346 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
347 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 348 mvm->lar_regdom_set = true;
8ba2d7a1 349 mvm->mcc_src = src_id;
88931cc9 350
8ba2d7a1 351out:
88931cc9
AN		 352 return regd;
353}
354
47c8b154
JD		 355void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
356{
357 bool changed;
358 struct ieee80211_regdomain *regd;
359
360 if (!iwl_mvm_is_lar_supported(mvm))
361 return;
362
363 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
364 if (!IS_ERR_OR_NULL(regd)) {
365 /* only update the regulatory core if changed */
366 if (changed)
367 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
368
369 kfree(regd);
370 }
371}
372
373struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
374 bool *changed)
8ba2d7a1
EH		 375{
376 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
377 iwl_mvm_is_wifi_mcc_supported(mvm) ?
378 MCC_SOURCE_GET_CURRENT :
47c8b154 379 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 380}
381
382int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
383{
384 enum iwl_mcc_source used_src;
385 struct ieee80211_regdomain *regd;
b6e160ab
AN		 386 int ret;
387 bool changed;
8ba2d7a1
EH		 388 const struct ieee80211_regdomain *r =
389 rtnl_dereference(mvm->hw->wiphy->regd);
390
391 if (!r)
b6e160ab 392 return -ENOENT;
8ba2d7a1
EH		 393
394 /* save the last source in case we overwrite it below */
395 used_src = mvm->mcc_src;
396 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
397 /* Notify the firmware we support wifi location updates */
47c8b154 398 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 399 if (!IS_ERR_OR_NULL(regd))
400 kfree(regd);
401 }
402
403 /* Now set our last stored MCC and source */
b6e160ab
AN		 404 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
405 &changed);
8ba2d7a1
EH		 406 if (IS_ERR_OR_NULL(regd))
407 return -EIO;
408
b6e160ab
AN		 409 /* update cfg80211 if the regdomain was changed */
410 if (changed)
411 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
412 else
413 ret = 0;
8ba2d7a1 414
b6e160ab
AN		 415 kfree(regd);
416 return ret;
8ba2d7a1
EH		 417}
418
8ca151b5
JB		 419int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
420{
421 struct ieee80211_hw *hw = mvm->hw;
831e85f3 422 int num_mac, ret, i;
5f4c02e2
JB		 423 static const u32 mvm_ciphers[] = {
424 WLAN_CIPHER_SUITE_WEP40,
425 WLAN_CIPHER_SUITE_WEP104,
426 WLAN_CIPHER_SUITE_TKIP,
427 WLAN_CIPHER_SUITE_CCMP,
428 };
8ca151b5
JB		 429
430 /* Tell mac80211 our characteristics */
30686bf7
JB		 431 ieee80211_hw_set(hw, SIGNAL_DBM);
432 ieee80211_hw_set(hw, SPECTRUM_MGMT);
433 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
434 ieee80211_hw_set(hw, QUEUE_CONTROL);
435 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
436 ieee80211_hw_set(hw, SUPPORTS_PS);
437 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
438 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
439 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
440 ieee80211_hw_set(hw, CONNECTION_MONITOR);
441 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
442 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
443 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
909ddf0b 444 ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
30433d3b 445 ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
b915c101
SS		 446 if (iwl_mvm_has_new_rx_api(mvm))
447 ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
960f864b
JB		 448
449 if (fw_has_capa(&mvm->fw->ucode_capa,
450 IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
65e25482 451 ieee80211_hw_set(hw, AP_LINK_PS);
960f864b
JB		 452 } else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
453 /*
454 * we absolutely need this for the new TX API since that comes
455 * with many more queues than the current code can deal with
456 * for station powersave
457 */
458 return -EINVAL;
459 }
8ca151b5 460
80938abc
JB		 461 if (mvm->trans->num_rx_queues > 1)
462 ieee80211_hw_set(hw, USES_RSS);
463
2d7cf549
JB		 464 if (mvm->trans->max_skb_frags)
465 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
466
c8f54701 467 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 468 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 469 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
470 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 471 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
472 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
371a17ed
JB		 473
474 hw->radiotap_timestamp.units_pos =
475 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
476 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
477 /* this is the case for CCK frames, it's better (only 8) for OFDM */
478 hw->radiotap_timestamp.accuracy = 22;
479
8ca151b5 480 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 481 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
482 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 483
8e160ab8 484 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 485 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
486 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
487 hw->wiphy->cipher_suites = mvm->ciphers;
488
2a53d166
AB		 489 if (iwl_mvm_has_new_rx_api(mvm)) {
490 mvm->ciphers[hw->wiphy->n_cipher_suites] =
491 WLAN_CIPHER_SUITE_GCMP;
492 hw->wiphy->n_cipher_suites++;
493 mvm->ciphers[hw->wiphy->n_cipher_suites] =
494 WLAN_CIPHER_SUITE_GCMP_256;
495 hw->wiphy->n_cipher_suites++;
496 }
497
4b87e5af
LC		 498 /* Enable 11w if software crypto is not enabled (as the
499 * firmware will interpret some mgmt packets, so enabling it
500 * with software crypto isn't safe).
8ca151b5 501 */
3b37f4c9 502 if (!iwlwifi_mod_params.swcrypto) {
30686bf7 503 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 504 mvm->ciphers[hw->wiphy->n_cipher_suites] =
505 WLAN_CIPHER_SUITE_AES_CMAC;
506 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 507 if (iwl_mvm_has_new_rx_api(mvm)) {
508 mvm->ciphers[hw->wiphy->n_cipher_suites] =
509 WLAN_CIPHER_SUITE_BIP_GMAC_128;
510 hw->wiphy->n_cipher_suites++;
511 mvm->ciphers[hw->wiphy->n_cipher_suites] =
512 WLAN_CIPHER_SUITE_BIP_GMAC_256;
513 hw->wiphy->n_cipher_suites++;
514 }
5f4c02e2
JB		 515 }
516
517 /* currently FW API supports only one optional cipher scheme */
518 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 519 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
520 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
521
5f4c02e2 522 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 523
524 cs->cipher = le32_to_cpu(fwcs->cipher);
525 cs->iftype = BIT(NL80211_IFTYPE_STATION);
526 cs->hdr_len = fwcs->hdr_len;
527 cs->pn_len = fwcs->pn_len;
528 cs->pn_off = fwcs->pn_off;
529 cs->key_idx_off = fwcs->key_idx_off;
530 cs->key_idx_mask = fwcs->key_idx_mask;
531 cs->key_idx_shift = fwcs->key_idx_shift;
532 cs->mic_len = fwcs->mic_len;
533
534 mvm->hw->cipher_schemes = mvm->cs;
535 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 536 hw->wiphy->n_cipher_suites++;
537 }
8ca151b5 538
30686bf7 539 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 540 hw->wiphy->features |=
541 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 542 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
543 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 544
8ca151b5
JB		 545 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
546 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 547 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 548
549 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 550 BIT(NL80211_IFTYPE_P2P_CLIENT) |
551 BIT(NL80211_IFTYPE_AP) |
552 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 553 BIT(NL80211_IFTYPE_P2P_DEVICE) |
554 BIT(NL80211_IFTYPE_ADHOC);
5023d966 555
a2f73b6c 556 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 557 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
558 if (iwl_mvm_is_lar_supported(mvm))
559 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
560 else
561 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
562 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 563
4b87e5af 564 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 565 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 566
8ca151b5
JB		 567 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
568 hw->wiphy->n_iface_combinations =
569 ARRAY_SIZE(iwl_mvm_iface_combinations);
570
c451e6d4 571 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 572 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 573 /* we can compensate an offset of up to 3 channels = 15 MHz */
574 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 575
576 /* Extract MAC address */
577 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
578 hw->wiphy->addresses = mvm->addresses;
579 hw->wiphy->n_addresses = 1;
831e85f3
IP		 580
581 /* Extract additional MAC addresses if available */
582 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
583 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
584
585 for (i = 1; i < num_mac; i++) {
586 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 587 ETH_ALEN);
831e85f3 588 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 589 hw->wiphy->n_addresses++;
590 }
591
fe0f2de3
IP		 592 iwl_mvm_reset_phy_ctxts(mvm);
593
999d2568 594 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 595
8ca151b5
JB		 596 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
597
c7d42480 598 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 599 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
600 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
601
859d914c 602 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 603 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
604 else
605 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
606
57fbcce3
JB		 607 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
608 hw->wiphy->bands[NL80211_BAND_2GHZ] =
609 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
610 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
611 hw->wiphy->bands[NL80211_BAND_5GHZ] =
612 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 613
859d914c
JB		 614 if (fw_has_capa(&mvm->fw->ucode_capa,
615 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
616 fw_has_api(&mvm->fw->ucode_capa,
617 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 618 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 619 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
620 }
621
8ca151b5
JB		 622 hw->wiphy->hw_version = mvm->trans->hw_id;
623
ade50652 624 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 625 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
626 else
627 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
628
ca986ad9 629 hw->wiphy->max_sched_scan_reqs = 1;
9954b37c
EG		 630 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
631 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
632 /* we create the 802.11 header and zero length SSID IE. */
633 hw->wiphy->max_sched_scan_ie_len =
634 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 635 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
636 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
637
638 /*
639 * the firmware uses u8 for num of iterations, but 0xff is saved for
640 * infinite loop, so the maximum number of iterations is actually 254.
641 */
642 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 643
8ca151b5 644 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 645 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 646 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 647 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 648 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 649 NL80211_FEATURE_STATIC_SMPS |
650 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 651
859d914c
JB		 652 if (fw_has_capa(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 654 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 655 if (fw_has_capa(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 657 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 658
859d914c
JB		 659 if (fw_has_capa(&mvm->fw->ucode_capa,
660 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 661 hw->wiphy->features |=
662 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
663
859d914c
JB		 664 if (fw_has_capa(&mvm->fw->ucode_capa,
665 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 666 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
667
aacf8f18
AS		 668 if (fw_has_api(&mvm->fw->ucode_capa,
669 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
670 wiphy_ext_feature_set(hw->wiphy,
671 NL80211_EXT_FEATURE_SCAN_START_TIME);
672 wiphy_ext_feature_set(hw->wiphy,
673 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
674 wiphy_ext_feature_set(hw->wiphy,
675 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
676 }
677
8ca151b5
JB		 678 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
679
680#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 681 if (iwl_mvm_is_d0i3_supported(mvm) &&
682 device_can_wakeup(mvm->trans->dev)) {
683 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
684 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 685 }
686
eef187a7 687 if (mvm->fw->img[IWL_UCODE_WOWLAN].num_sec &&
8ca151b5
JB		 688 mvm->trans->ops->d3_suspend &&
689 mvm->trans->ops->d3_resume &&
690 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 691 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
692 WIPHY_WOWLAN_DISCONNECT |
693 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
694 WIPHY_WOWLAN_RFKILL_RELEASE |
695 WIPHY_WOWLAN_NET_DETECT;
3b37f4c9 696 if (!iwlwifi_mod_params.swcrypto)
964dc9e2
JB		 697 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
698 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
699 WIPHY_WOWLAN_4WAY_HANDSHAKE;
700
701 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
702 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
703 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 704 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 705 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
706 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 707 }
708#endif
709
77736923
EP		 710#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
711 /* assign default bcast filtering configuration */
712 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
713#endif
714
8ca151b5
JB		 715 ret = iwl_mvm_leds_init(mvm);
716 if (ret)
717 return ret;
718
859d914c
JB		 719 if (fw_has_capa(&mvm->fw->ucode_capa,
720 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 721 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
722 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 723 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 724 }
725
859d914c
JB		 726 if (fw_has_capa(&mvm->fw->ucode_capa,
727 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 728 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
729 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
730 }
731
93190fb0 732 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 733 if (!iwl_mvm_is_csum_supported(mvm)) {
734 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
735 NETIF_F_RXCSUM);
736 /* We may support SW TX CSUM */
737 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
738 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
739 }
41837ca9 740
b7327d89
EG		 741 ret = ieee80211_register_hw(mvm->hw);
742 if (ret)
743 iwl_mvm_leds_exit(mvm);
de8ba41b 744 mvm->init_status |= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE;
b7327d89 745
91b08c2d
AE		 746 if (mvm->cfg->vht_mu_mimo_supported)
747 wiphy_ext_feature_set(hw->wiphy,
748 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
749
b7327d89 750 return ret;
8ca151b5
JB		 751}
752
b2492501
AN		 753static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
754 struct ieee80211_sta *sta,
755 struct sk_buff *skb)
756{
757 struct iwl_mvm_sta *mvmsta;
758 bool defer = false;
759
760 /*
761 * double check the IN_D0I3 flag both before and after
762 * taking the spinlock, in order to prevent taking
763 * the spinlock when not needed.
764 */
765 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
766 return false;
767
768 spin_lock(&mvm->d0i3_tx_lock);
769 /*
770 * testing the flag again ensures the skb dequeue
771 * loop (on d0i3 exit) hasn't run yet.
772 */
773 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
774 goto out;
775
776 mvmsta = iwl_mvm_sta_from_mac80211(sta);
0ae98812 777 if (mvmsta->sta_id == IWL_MVM_INVALID_STA ||
b2492501
AN		 778 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
779 goto out;
780
781 __skb_queue_tail(&mvm->d0i3_tx, skb);
782 ieee80211_stop_queues(mvm->hw);
783
784 /* trigger wakeup */
785 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
786 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
787
788 defer = true;
789out:
790 spin_unlock(&mvm->d0i3_tx_lock);
791 return defer;
792}
793
8ca151b5
JB		 794static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
795 struct ieee80211_tx_control *control,
796 struct sk_buff *skb)
797{
798 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 799 struct ieee80211_sta *sta = control->sta;
800 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
801 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 802
9ee718aa
EL		 803 if (iwl_mvm_is_radio_killed(mvm)) {
804 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 805 goto drop;
806 }
807
d20e30af 808 if (info->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 809 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
810 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 811 goto drop;
812
eb045e6e
DS		 813 /* treat non-bufferable MMPDUs on AP interfaces as broadcast */
814 if ((info->control.vif->type == NL80211_IFTYPE_AP ||
815 info->control.vif->type == NL80211_IFTYPE_ADHOC) &&
816 ieee80211_is_mgmt(hdr->frame_control) &&
817 !ieee80211_is_bufferable_mmpdu(hdr->frame_control))
3e56eadf
JB		 818 sta = NULL;
819
820 if (sta) {
b2492501
AN		 821 if (iwl_mvm_defer_tx(mvm, sta, skb))
822 return;
3e56eadf 823 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 824 goto drop;
825 return;
826 }
827
828 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
829 goto drop;
830 return;
831 drop:
832 ieee80211_free_txskb(hw, skb);
833}
834
205e2210
EG		 835static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
836{
837 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
838 return false;
839 return true;
840}
841
842static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
843{
844 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
845 return false;
846 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
847 return true;
848
849 /* enabled by default */
850 return true;
851}
852
7174beb6
JB		 853#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
854 do { \
855 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
856 break; \
857 iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt); \
4203263d
EG		 858 } while (0)
859
860static void
861iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
862 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
863 enum ieee80211_ampdu_mlme_action action)
864{
865 struct iwl_fw_dbg_trigger_tlv *trig;
866 struct iwl_fw_dbg_trigger_ba *ba_trig;
867
868 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
869 return;
870
871 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
872 ba_trig = (void *)trig->data;
873
7174beb6
JB		 874 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
875 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 876 return;
877
878 switch (action) {
879 case IEEE80211_AMPDU_TX_OPERATIONAL: {
880 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
881 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
882
883 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
884 "TX AGG START: MAC %pM tid %d ssn %d\n",
885 sta->addr, tid, tid_data->ssn);
886 break;
887 }
888 case IEEE80211_AMPDU_TX_STOP_CONT:
889 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
890 "TX AGG STOP: MAC %pM tid %d\n",
891 sta->addr, tid);
892 break;
893 case IEEE80211_AMPDU_RX_START:
894 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
895 "RX AGG START: MAC %pM tid %d ssn %d\n",
896 sta->addr, tid, rx_ba_ssn);
897 break;
898 case IEEE80211_AMPDU_RX_STOP:
899 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
900 "RX AGG STOP: MAC %pM tid %d\n",
901 sta->addr, tid);
902 break;
903 default:
904 break;
905 }
906}
907
8ca151b5
JB		 908static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
909 struct ieee80211_vif *vif,
50ea05ef 910 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 911{
912 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
913 int ret;
b2492501 914 bool tx_agg_ref = false;
50ea05ef
SS		 915 struct ieee80211_sta *sta = params->sta;
916 enum ieee80211_ampdu_mlme_action action = params->action;
917 u16 tid = params->tid;
918 u16 *ssn = &params->ssn;
919 u8 buf_size = params->buf_size;
bb81bb68 920 bool amsdu = params->amsdu;
10b2b201 921 u16 timeout = params->timeout;
8ca151b5
JB		 922
923 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
924 sta->addr, tid, action);
925
926 if (!(mvm->nvm_data->sku_cap_11n_enable))
927 return -EACCES;
928
b2492501 929 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 930 switch (action) {
931 case IEEE80211_AMPDU_TX_START:
932 case IEEE80211_AMPDU_TX_STOP_CONT:
933 case IEEE80211_AMPDU_TX_STOP_FLUSH:
934 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
935 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 936 /*
9256c205
EP		 937 * for tx start, wait synchronously until D0i3 exit to
938 * get the correct sequence number for the tid.
939 * additionally, some other ampdu actions use direct
940 * target access, which is not handled automatically
941 * by the trans layer (unlike commands), so wait for
942 * d0i3 exit in these cases as well.
b2492501 943 */
d40fc489
GG		 944 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
945 if (ret)
946 return ret;
947
948 tx_agg_ref = true;
9256c205
EP		 949 break;
950 default:
951 break;
b2492501
AN		 952 }
953
8ca151b5
JB		 954 mutex_lock(&mvm->mutex);
955
956 switch (action) {
957 case IEEE80211_AMPDU_RX_START:
205e2210 958 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 959 ret = -EINVAL;
960 break;
961 }
10b2b201
SS		 962 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
963 timeout);
8ca151b5
JB		 964 break;
965 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 966 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
967 timeout);
8ca151b5
JB		 968 break;
969 case IEEE80211_AMPDU_TX_START:
205e2210 970 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 971 ret = -EINVAL;
972 break;
973 }
8ca151b5
JB		 974 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
975 break;
976 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 977 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
978 break;
8ca151b5
JB		 979 case IEEE80211_AMPDU_TX_STOP_FLUSH:
980 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 981 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 982 break;
983 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 984 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
985 buf_size, amsdu);
8ca151b5
JB		 986 break;
987 default:
988 WARN_ON_ONCE(1);
989 ret = -EINVAL;
990 break;
991 }
4203263d
EG		 992
993 if (!ret) {
994 u16 rx_ba_ssn = 0;
995
996 if (action == IEEE80211_AMPDU_RX_START)
997 rx_ba_ssn = *ssn;
998
999 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
1000 rx_ba_ssn, action);
1001 }
8ca151b5
JB		 1002 mutex_unlock(&mvm->mutex);
1003
b2492501
AN		 1004 /*
1005 * If the tid is marked as started, we won't use it for offloaded
1006 * traffic on the next D0i3 entry. It's safe to unref.
1007 */
1008 if (tx_agg_ref)
1009 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
1010
8ca151b5
JB		 1011 return ret;
1012}
1013
1014static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
1015 struct ieee80211_vif *vif)
1016{
1017 struct iwl_mvm *mvm = data;
1018 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1019
1020 mvmvif->uploaded = false;
0ae98812 1021 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
8ca151b5 1022
8ca151b5
JB		 1023 spin_lock_bh(&mvm->time_event_lock);
1024 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1025 spin_unlock_bh(&mvm->time_event_lock);
1026
fe0f2de3 1027 mvmvif->phy_ctxt = NULL;
8a275bad 1028 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1029}
1030
1031static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1032{
58629d9d
JB		 1033 /* clear the D3 reconfig, we only need it to avoid dumping a
1034 * firmware coredump on reconfiguration, we shouldn't do that
1035 * on D3->D0 transition
1036 */
b6eaa45a 1037 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
7174beb6
JB		 1038 mvm->fwrt.dump.desc = &iwl_dump_desc_assert;
1039 iwl_fw_error_dump(&mvm->fwrt);
b6eaa45a 1040 }
1bd3cbc1 1041
744cb695
EP		 1042 /* cleanup all stale references (scan, roc), but keep the
1043 * ucode_down ref until reconfig is complete
1044 */
1045 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1046
fcb6b92a 1047 iwl_mvm_stop_device(mvm);
8ca151b5 1048
9af91f46 1049 mvm->scan_status = 0;
b1873300 1050 mvm->ps_disabled = false;
31b8b343 1051 mvm->calibrating = false;
8ca151b5
JB		 1052
1053 /* just in case one was running */
305d236e 1054 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1055 ieee80211_remain_on_channel_expired(mvm->hw);
1056
737719fe
AN		 1057 /*
1058 * cleanup all interfaces, even inactive ones, as some might have
1059 * gone down during the HW restart
1060 */
1061 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1062
fe0f2de3 1063 mvm->p2p_device_vif = NULL;
0ae98812 1064 mvm->d0i3_ap_sta_id = IWL_MVM_INVALID_STA;
fe0f2de3
IP		 1065
1066 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1067 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
24afba76 1068 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
8a275bad 1069 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1070 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1071
1072 ieee80211_wake_queues(mvm->hw);
1073
228670b2
EP		 1074 /* clear any stale d0i3 state */
1075 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1076
8ca151b5 1077 mvm->vif_count = 0;
113a0447 1078 mvm->rx_ba_sessions = 0;
7174beb6 1079 mvm->fwrt.dump.conf = FW_DBG_INVALID;
baf41bc3 1080 mvm->monitor_on = false;
91a8bcde
JB		 1081
1082 /* keep statistics ticking */
1083 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1084}
1085
a0a09243 1086int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1087{
8ca151b5
JB		 1088 int ret;
1089
a0a09243 1090 lockdep_assert_held(&mvm->mutex);
8ca151b5 1091
bf8b286f
JB		 1092 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1093 /*
1094 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1095 * so later code will - from now on - see that we're doing it.
1096 */
1097 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1098 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
a42b2af3 1099 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1100 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1101 } else {
1102 /* Hold the reference to prevent runtime suspend while
1103 * the start procedure runs. It's a bit confusing
1104 * that the UCODE_DOWN reference is taken, but it just
1105 * means "UCODE is not UP yet". ( TODO: rename this
1106 * reference).
1107 */
1108 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1109 }
8ca151b5 1110 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1111
1112 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1113 /* Something went wrong - we need to finish some cleanup
1114 * that normally iwl_mvm_mac_restart_complete() below
1115 * would do.
1116 */
1117 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1118 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1119 }
1120
a0a09243
LC		 1121 return ret;
1122}
1123
1124static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1125{
1126 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1127 int ret;
1128
37948fcf
EP		 1129 /* Some hw restart cleanups must not hold the mutex */
1130 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1131 /*
1132 * Make sure we are out of d0i3. This is needed
1133 * to make sure the reference accounting is correct
1134 * (and there is no stale d0i3_exit_work).
1135 */
1136 wait_event_timeout(mvm->d0i3_exit_waitq,
1137 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1138 &mvm->status),
1139 HZ);
1140 }
1141
a0a09243
LC		 1142 mutex_lock(&mvm->mutex);
1143 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1144 mutex_unlock(&mvm->mutex);
1145
1146 return ret;
1147}
1148
cf2c92d8 1149static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1150{
8ca151b5
JB		 1151 int ret;
1152
1153 mutex_lock(&mvm->mutex);
1154
1155 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1156 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1157 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1158 if (ret)
1159 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1160 ret);
1161
7498cf4c
EP		 1162 /* allow transport/FW low power modes */
1163 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1164
cbd2ae2d
AN		 1165 /*
1166 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1167 * of packets the FW sent out, so we must reconnect.
1168 */
1169 iwl_mvm_teardown_tdls_peers(mvm);
1170
8ca151b5
JB		 1171 mutex_unlock(&mvm->mutex);
1172}
1173
088070a2
EP		 1174static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1175{
b7282643
LC		 1176 if (iwl_mvm_is_d0i3_supported(mvm) &&
1177 iwl_mvm_enter_d0i3_on_suspend(mvm))
1178 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1179 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1180 &mvm->status),
1181 HZ),
1182 "D0i3 exit on resume timed out\n");
088070a2
EP		 1183}
1184
cf2c92d8
EP		 1185static void
1186iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1187 enum ieee80211_reconfig_type reconfig_type)
1188{
1189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1190
1191 switch (reconfig_type) {
1192 case IEEE80211_RECONFIG_TYPE_RESTART:
1193 iwl_mvm_restart_complete(mvm);
1194 break;
1195 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1196 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1197 break;
1198 }
1199}
1200
a0a09243 1201void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1202{
a0a09243 1203 lockdep_assert_held(&mvm->mutex);
7498cf4c 1204
91a8bcde
JB		 1205 /* firmware counters are obviously reset now, but we shouldn't
1206 * partially track so also clear the fw_reset_accu counters.
1207 */
1208 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1209
8ca151b5
JB		 1210 /* async_handlers_wk is now blocked */
1211
1212 /*
1213 * The work item could be running or queued if the
1214 * ROC time event stops just as we get here.
1215 */
c779273b 1216 flush_work(&mvm->roc_done_wk);
8ca151b5 1217
fcb6b92a 1218 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1219
1220 iwl_mvm_async_handlers_purge(mvm);
1221 /* async_handlers_list is empty and will stay empty: HW is stopped */
1222
1223 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1224 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1225
0a79a0c0
EP		 1226 /*
1227 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1228 * won't be called in this case).
8b2b9fbf
AN		 1229 * But make sure to cleanup interfaces that have gone down before/during
1230 * HW restart was requested.
0a79a0c0 1231 */
8b2b9fbf
AN		 1232 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1233 ieee80211_iterate_interfaces(mvm->hw, 0,
1234 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1235
963221be
AB		 1236 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1237 * make sure there's nothing left there and warn if any is found.
1238 */
859d914c 1239 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1240 int i;
1241
507e4cda 1242 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1243 if (WARN_ONCE(mvm->scan_uid_status[i],
1244 "UMAC scan UID %d status was not cleaned\n",
1245 i))
1246 mvm->scan_uid_status[i] = 0;
963221be
AB		 1247 }
1248 }
a0a09243 1249}
bc44886d 1250
a0a09243
LC		 1251static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1252{
1253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1254
1255 flush_work(&mvm->d0i3_exit_work);
1256 flush_work(&mvm->async_handlers_wk);
24afba76 1257 flush_work(&mvm->add_stream_wk);
771147b0
JB		 1258
1259 /*
1260 * Lock and clear the firmware running bit here already, so that
1261 * new commands coming in elsewhere, e.g. from debugfs, will not
1262 * be able to proceed. This is important here because one of those
7174beb6 1263 * debugfs files causes the firmware dump to be triggered, and if we
771147b0
JB		 1264 * don't stop debugfs accesses before canceling that it could be
1265 * retriggered after we flush it but before we've cleared the bit.
1266 */
1267 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1268
7174beb6 1269 iwl_fw_cancel_dump(&mvm->fwrt);
d3a108a4 1270 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1271 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
7174beb6 1272 iwl_fw_free_dump_desc(&mvm->fwrt);
a0a09243
LC		 1273
1274 mutex_lock(&mvm->mutex);
1275 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1276 mutex_unlock(&mvm->mutex);
1277
1278 /*
1279 * The worker might have been waiting for the mutex, let it run and
1280 * discover that its list is now empty.
1281 */
1282 cancel_work_sync(&mvm->async_handlers_wk);
1283}
1284
fe0f2de3
IP		 1285static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1286{
1287 u16 i;
1288
1289 lockdep_assert_held(&mvm->mutex);
1290
1291 for (i = 0; i < NUM_PHY_CTX; i++)
1292 if (!mvm->phy_ctxts[i].ref)
1293 return &mvm->phy_ctxts[i];
1294
1295 IWL_ERR(mvm, "No available PHY context\n");
1296 return NULL;
1297}
1298
d44c3fe6
AA		 1299static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1300 s16 tx_power)
1301{
1302 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1303 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1304 .v3.mac_context_id =
d44c3fe6 1305 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1306 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1307 };
da03f029 1308 int len = sizeof(cmd);
d44c3fe6 1309
d44c3fe6 1310 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1311 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1312
55bfa4b9
LC		 1313 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1314 len = sizeof(cmd.v3);
da03f029
JB		 1315
1316 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1317}
1318
8ca151b5
JB		 1319static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1320 struct ieee80211_vif *vif)
1321{
1322 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1323 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1324 int ret;
1325
aa5e1832
EG		 1326 mvmvif->mvm = mvm;
1327
d40fc489
GG		 1328 /*
1329 * make sure D0i3 exit is completed, otherwise a target access
1330 * during tx queue configuration could be done when still in
1331 * D0i3 state.
1332 */
1333 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1334 if (ret)
1335 return ret;
1336
8ca151b5
JB		 1337 /*
1338 * Not much to do here. The stack will not allow interface
1339 * types or combinations that we didn't advertise, so we
1340 * don't really have to check the types.
1341 */
1342
1343 mutex_lock(&mvm->mutex);
1344
33cef925
JB		 1345 /* make sure that beacon statistics don't go backwards with FW reset */
1346 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1347 mvmvif->beacon_stats.accu_num_beacons +=
1348 mvmvif->beacon_stats.num_beacons;
1349
e89044d7 1350 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1351 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1352 if (ret)
1353 goto out_unlock;
1354
1c2abf72 1355 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1356 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1357 mvm->vif_count++;
ea183d02 1358
8ca151b5
JB		 1359 /*
1360 * The AP binding flow can be done only after the beacon
1361 * template is configured (which happens only in the mac80211
1362 * start_ap() flow), and adding the broadcast station can happen
1363 * only after the binding.
1364 * In addition, since modifying the MAC before adding a bcast
1365 * station is not allowed by the FW, delay the adding of MAC context to
1366 * the point where we can also add the bcast station.
1367 * In short: there's not much we can do at this point, other than
1368 * allocating resources :)
1369 */
5023d966
JB		 1370 if (vif->type == NL80211_IFTYPE_AP ||
1371 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1372 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1373 if (ret) {
1374 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1375 goto out_release;
1376 }
1377
c8f54701
JB		 1378 /*
1379 * Only queue for this station is the mcast queue,
1380 * which shouldn't be in TFD mask anyway
1381 */
1382 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1383 0, vif->type,
1384 IWL_STA_MULTICAST);
1385 if (ret)
1386 goto out_release;
26d6c16b 1387
77740cb4 1388 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1389 goto out_unlock;
1390 }
1391
93190fb0
AA		 1392 mvmvif->features |= hw->netdev_features;
1393
8ca151b5
JB		 1394 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1395 if (ret)
1396 goto out_release;
1397
999609f1 1398 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1399 if (ret)
fd66fc1c 1400 goto out_remove_mac;
8ca151b5 1401
7df15b1e 1402 /* beacon filtering */
a1022927 1403 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1404 if (ret)
1405 goto out_remove_mac;
1406
7df15b1e 1407 if (!mvm->bf_allowed_vif &&
73e5f2c5 1408 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1409 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1410 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1411 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1412 }
1413
8ca151b5
JB		 1414 /*
1415 * P2P_DEVICE interface does not have a channel context assigned to it,
1416 * so a dedicated PHY context is allocated to it and the corresponding
1417 * MAC context is bound to it at this stage.
1418 */
1419 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1420
fe0f2de3
IP		 1421 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1422 if (!mvmvif->phy_ctxt) {
1423 ret = -ENOSPC;
bd3351ba 1424 goto out_free_bf;
fe0f2de3 1425 }
8ca151b5 1426
53a9d61e 1427 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1428 ret = iwl_mvm_binding_add_vif(mvm, vif);
1429 if (ret)
53a9d61e 1430 goto out_unref_phy;
8ca151b5 1431
d197358b 1432 ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
8ca151b5
JB		 1433 if (ret)
1434 goto out_unbind;
1435
1436 /* Save a pointer to p2p device vif, so it can later be used to
1437 * update the p2p device MAC when a GO is started/stopped */
1438 mvm->p2p_device_vif = vif;
1439 }
1440
baf41bc3
ST		 1441 if (vif->type == NL80211_IFTYPE_MONITOR)
1442 mvm->monitor_on = true;
1443
63494374 1444 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1445 goto out_unlock;
1446
1447 out_unbind:
1448 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1449 out_unref_phy:
fe0f2de3 1450 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1451 out_free_bf:
1452 if (mvm->bf_allowed_vif == mvmvif) {
1453 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1454 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1455 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1456 }
8ca151b5
JB		 1457 out_remove_mac:
1458 mvmvif->phy_ctxt = NULL;
1459 iwl_mvm_mac_ctxt_remove(mvm, vif);
1460 out_release:
5ee2b215
AB		 1461 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1462 mvm->vif_count--;
8ca151b5
JB		 1463 out_unlock:
1464 mutex_unlock(&mvm->mutex);
1465
d40fc489
GG		 1466 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1467
8ca151b5
JB		 1468 return ret;
1469}
1470
38a12b5b
JB		 1471static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1472 struct ieee80211_vif *vif)
8ca151b5 1473{
8ca151b5
JB		 1474 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1475 /*
1476 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1477 * We assume here that all the packets sent to the OFFCHANNEL
1478 * queue are sent in ROC session.
1479 */
1480 flush_work(&mvm->roc_done_wk);
8ca151b5 1481 }
38a12b5b
JB		 1482}
1483
1484static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1485 struct ieee80211_vif *vif)
1486{
1487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1488 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1489
1490 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1491
1492 mutex_lock(&mvm->mutex);
1493
7df15b1e
HG		 1494 if (mvm->bf_allowed_vif == mvmvif) {
1495 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1496 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1497 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1498 }
1499
63494374
JB		 1500 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1501
8ca151b5
JB		 1502 /*
1503 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1504 * interface is be handled as part of the stop_ap flow.
8ca151b5 1505 */
5023d966
JB		 1506 if (vif->type == NL80211_IFTYPE_AP ||
1507 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1508#ifdef CONFIG_NL80211_TESTMODE
1509 if (vif == mvm->noa_vif) {
1510 mvm->noa_vif = NULL;
1511 mvm->noa_duration = 0;
1512 }
1513#endif
26d6c16b 1514 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
013290aa 1515 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1516 goto out_release;
1517 }
1518
1519 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1520 mvm->p2p_device_vif = NULL;
d197358b 1521 iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
8ca151b5 1522 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1523 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1524 mvmvif->phy_ctxt = NULL;
1525 }
1526
5ee2b215 1527 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1528 mvm->vif_count--;
1c2abf72 1529
999609f1 1530 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1531 iwl_mvm_mac_ctxt_remove(mvm, vif);
1532
baf41bc3
ST		 1533 if (vif->type == NL80211_IFTYPE_MONITOR)
1534 mvm->monitor_on = false;
1535
8ca151b5 1536out_release:
8ca151b5
JB		 1537 mutex_unlock(&mvm->mutex);
1538}
1539
1540static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1541{
8ca151b5
JB		 1542 return 0;
1543}
1544
e59647ea
EP		 1545struct iwl_mvm_mc_iter_data {
1546 struct iwl_mvm *mvm;
1547 int port_id;
1548};
1549
1550static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1551 struct ieee80211_vif *vif)
1552{
1553 struct iwl_mvm_mc_iter_data *data = _data;
1554 struct iwl_mvm *mvm = data->mvm;
1555 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
97bce57b
LC		 1556 struct iwl_host_cmd hcmd = {
1557 .id = MCAST_FILTER_CMD,
1558 .flags = CMD_ASYNC,
1559 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1560 };
e59647ea
EP		 1561 int ret, len;
1562
1563 /* if we don't have free ports, mcast frames will be dropped */
1564 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1565 return;
1566
1567 if (vif->type != NL80211_IFTYPE_STATION ||
1568 !vif->bss_conf.assoc)
1569 return;
1570
1571 cmd->port_id = data->port_id++;
1572 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1573 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1574
97bce57b
LC		 1575 hcmd.len[0] = len;
1576 hcmd.data[0] = cmd;
1577
1578 ret = iwl_mvm_send_cmd(mvm, &hcmd);
e59647ea
EP		 1579 if (ret)
1580 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1581}
1582
1583static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1584{
1585 struct iwl_mvm_mc_iter_data iter_data = {
1586 .mvm = mvm,
88f2fd73
MG		 1587 };
1588
e59647ea
EP		 1589 lockdep_assert_held(&mvm->mutex);
1590
1591 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1592 return;
1593
1c4abec0 1594 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1595 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1596 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1597}
1598
e59647ea
EP		 1599static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1600 struct netdev_hw_addr_list *mc_list)
8ca151b5 1601{
e59647ea
EP		 1602 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1603 struct iwl_mcast_filter_cmd *cmd;
1604 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1605 int addr_count;
1606 bool pass_all;
e59647ea
EP		 1607 int len;
1608
f3bd58f4
MS		 1609 addr_count = netdev_hw_addr_list_count(mc_list);
1610 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1611 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1612 if (pass_all)
e59647ea 1613 addr_count = 0;
e59647ea
EP		 1614
1615 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1616 cmd = kzalloc(len, GFP_ATOMIC);
1617 if (!cmd)
1618 return 0;
1619
1620 if (pass_all) {
1621 cmd->pass_all = 1;
1622 return (u64)(unsigned long)cmd;
1623 }
1624
1625 netdev_hw_addr_list_for_each(addr, mc_list) {
1626 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1627 cmd->count, addr->addr);
1628 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1629 addr->addr, ETH_ALEN);
1630 cmd->count++;
1631 }
1632
1633 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1634}
1635
1636static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1637 unsigned int changed_flags,
1638 unsigned int *total_flags,
1639 u64 multicast)
1640{
e59647ea
EP		 1641 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1642 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1643
e59647ea 1644 mutex_lock(&mvm->mutex);
51b6b9e0 1645
e59647ea
EP		 1646 /* replace previous configuration */
1647 kfree(mvm->mcast_filter_cmd);
1648 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1649
e59647ea
EP		 1650 if (!cmd)
1651 goto out;
51b6b9e0 1652
61e7d91b
LC		 1653 if (changed_flags & FIF_ALLMULTI)
1654 cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1655
1656 if (cmd->pass_all)
1657 cmd->count = 0;
1658
e59647ea
EP		 1659 iwl_mvm_recalc_multicast(mvm);
1660out:
1661 mutex_unlock(&mvm->mutex);
1662 *total_flags = 0;
51b6b9e0
EG		 1663}
1664
effd1929
AO		 1665static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1666 struct ieee80211_vif *vif,
1667 unsigned int filter_flags,
1668 unsigned int changed_flags)
1669{
1670 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1671
1672 /* We support only filter for probe requests */
1673 if (!(changed_flags & FIF_PROBE_REQ))
1674 return;
1675
1676 /* Supported only for p2p client interfaces */
1677 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1678 !vif->p2p)
1679 return;
1680
1681 mutex_lock(&mvm->mutex);
1682 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1683 mutex_unlock(&mvm->mutex);
1684}
1685
c87163b9
EP		 1686#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1687struct iwl_bcast_iter_data {
1688 struct iwl_mvm *mvm;
1689 struct iwl_bcast_filter_cmd *cmd;
1690 u8 current_filter;
1691};
1692
1693static void
1694iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1695 const struct iwl_fw_bcast_filter *in_filter,
1696 struct iwl_fw_bcast_filter *out_filter)
1697{
1698 struct iwl_fw_bcast_filter_attr *attr;
1699 int i;
1700
1701 memcpy(out_filter, in_filter, sizeof(*out_filter));
1702
1703 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1704 attr = &out_filter->attrs[i];
1705
1706 if (!attr->mask)
1707 break;
1708
2ee8f021
EP		 1709 switch (attr->reserved1) {
1710 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1711 if (vif->bss_conf.arp_addr_cnt != 1) {
1712 attr->mask = 0;
1713 continue;
1714 }
1715
1716 attr->val = vif->bss_conf.arp_addr_list[0];
1717 break;
1718 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1719 attr->val = *(__be32 *)&vif->addr[2];
1720 break;
1721 default:
1722 break;
1723 }
1724 attr->reserved1 = 0;
c87163b9
EP		 1725 out_filter->num_attrs++;
1726 }
1727}
1728
1729static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1730 struct ieee80211_vif *vif)
1731{
1732 struct iwl_bcast_iter_data *data = _data;
1733 struct iwl_mvm *mvm = data->mvm;
1734 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1735 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1736 struct iwl_fw_bcast_mac *bcast_mac;
1737 int i;
1738
1739 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1740 return;
1741
1742 bcast_mac = &cmd->macs[mvmvif->id];
1743
e48393e8
IP		 1744 /*
1745 * enable filtering only for associated stations, but not for P2P
1746 * Clients
1747 */
1748 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1749 !vif->bss_conf.assoc)
c87163b9
EP		 1750 return;
1751
1752 bcast_mac->default_discard = 1;
1753
1754 /* copy all configured filters */
1755 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1756 /*
1757 * Make sure we don't exceed our filters limit.
1758 * if there is still a valid filter to be configured,
1759 * be on the safe side and just allow bcast for this mac.
1760 */
1761 if (WARN_ON_ONCE(data->current_filter >=
1762 ARRAY_SIZE(cmd->filters))) {
1763 bcast_mac->default_discard = 0;
1764 bcast_mac->attached_filters = 0;
1765 break;
1766 }
1767
1768 iwl_mvm_set_bcast_filter(vif,
1769 &mvm->bcast_filters[i],
1770 &cmd->filters[data->current_filter]);
1771
1772 /* skip current filter if it contains no attributes */
1773 if (!cmd->filters[data->current_filter].num_attrs)
1774 continue;
1775
1776 /* attach the filter to current mac */
1777 bcast_mac->attached_filters |=
1778 cpu_to_le16(BIT(data->current_filter));
1779
1780 data->current_filter++;
1781 }
1782}
1783
de06a59e
EP		 1784bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1785 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1786{
c87163b9
EP		 1787 struct iwl_bcast_iter_data iter_data = {
1788 .mvm = mvm,
de06a59e 1789 .cmd = cmd,
c87163b9
EP		 1790 };
1791
3b8983b1
MS		 1792 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1793 return false;
1794
de06a59e
EP		 1795 memset(cmd, 0, sizeof(*cmd));
1796 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1797 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1798
1799#ifdef CONFIG_IWLWIFI_DEBUGFS
1800 /* use debugfs filters/macs if override is configured */
1801 if (mvm->dbgfs_bcast_filtering.override) {
1802 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1803 sizeof(cmd->filters));
1804 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1805 sizeof(cmd->macs));
1806 return true;
1807 }
1808#endif
c87163b9
EP		 1809
1810 /* if no filters are configured, do nothing */
1811 if (!mvm->bcast_filters)
de06a59e 1812 return false;
c87163b9
EP		 1813
1814 /* configure and attach these filters for each associated sta vif */
1815 ieee80211_iterate_active_interfaces(
1816 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1817 iwl_mvm_bcast_filter_iterator, &iter_data);
1818
de06a59e
EP		 1819 return true;
1820}
34672bb3
EP		 1821
1822static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1823{
1824 struct iwl_bcast_filter_cmd cmd;
1825
1826 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1827 return 0;
1828
1829 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1830 return 0;
1831
a1022927 1832 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1833 sizeof(cmd), &cmd);
1834}
1835#else
34672bb3 1836static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1837{
1838 return 0;
1839}
1840#endif
1841
a07a8f37
SS		 1842static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1843 struct ieee80211_vif *vif)
1844{
1845 struct iwl_mu_group_mgmt_cmd cmd = {};
1846
1847 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1848 WLAN_MEMBERSHIP_LEN);
1849 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1850 WLAN_USER_POSITION_LEN);
1851
1852 return iwl_mvm_send_cmd_pdu(mvm,
1853 WIDE_ID(DATA_PATH_GROUP,
1854 UPDATE_MU_GROUPS_CMD),
1855 0, sizeof(cmd), &cmd);
1856}
1857
f92659a1
SS		 1858static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1859 struct ieee80211_vif *vif)
1860{
1861 if (vif->mu_mimo_owner) {
1862 struct iwl_mu_group_mgmt_notif *notif = _data;
1863
1864 /*
1865 * MU-MIMO Group Id action frame is little endian. We treat
1866 * the data received from firmware as if it came from the
1867 * action frame, so no conversion is needed.
1868 */
1869 ieee80211_update_mu_groups(vif,
1870 (u8 *)&notif->membership_status,
1871 (u8 *)&notif->user_position);
1872 }
1873}
1874
1875void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1876 struct iwl_rx_cmd_buffer *rxb)
1877{
1878 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1879 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1880
1881 ieee80211_iterate_active_interfaces_atomic(
1882 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1883 iwl_mvm_mu_mimo_iface_iterator, notif);
1884}
1885
8ca151b5
JB		 1886static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1887 struct ieee80211_vif *vif,
1888 struct ieee80211_bss_conf *bss_conf,
1889 u32 changes)
1890{
1891 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1892 int ret;
1893
6e97b0d2
IP		 1894 /*
1895 * Re-calculate the tsf id, as the master-slave relations depend on the
1896 * beacon interval, which was not known when the station interface was
1897 * added.
1898 */
1899 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1900 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1901
3dfd3a97
JB		 1902 /*
1903 * If we're not associated yet, take the (new) BSSID before associating
1904 * so the firmware knows. If we're already associated, then use the old
1905 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1906 * branch for disassociation below.
1907 */
1908 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1909 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1910
1911 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1912 if (ret)
1913 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1914
3dfd3a97
JB		 1915 /* after sending it once, adopt mac80211 data */
1916 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1917 mvmvif->associated = bss_conf->assoc;
1918
8ca151b5
JB		 1919 if (changes & BSS_CHANGED_ASSOC) {
1920 if (bss_conf->assoc) {
33cef925
JB		 1921 /* clear statistics to get clean beacon counter */
1922 iwl_mvm_request_statistics(mvm, true);
1923 memset(&mvmvif->beacon_stats, 0,
1924 sizeof(mvmvif->beacon_stats));
1925
8ca151b5 1926 /* add quota for this interface */
7754ae79 1927 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1928 if (ret) {
1929 IWL_ERR(mvm, "failed to update quotas\n");
1930 return;
1931 }
016d27e1
JB		 1932
1933 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1934 &mvm->status)) {
1935 /*
1936 * If we're restarting then the firmware will
1937 * obviously have lost synchronisation with
1938 * the AP. It will attempt to synchronise by
1939 * itself, but we can make it more reliable by
1940 * scheduling a session protection time event.
1941 *
1942 * The firmware needs to receive a beacon to
1943 * catch up with synchronisation, use 110% of
1944 * the beacon interval.
1945 *
1946 * Set a large maximum delay to allow for more
1947 * than a single interface.
1948 */
1949 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1950 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1951 5 * dur, false);
016d27e1 1952 }
1f3b0ff8
LE		 1953
1954 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1955 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1956 if (vif->p2p) {
29a90a49 1957 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1958 iwl_mvm_update_smps(mvm, vif,
1959 IWL_MVM_SMPS_REQ_PROT,
1960 IEEE80211_SMPS_DYNAMIC);
1961 }
0ae98812 1962 } else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
1f3b0ff8
LE		 1963 /*
1964 * If update fails - SF might be running in associated
1965 * mode while disassociated - which is forbidden.
1966 */
1967 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1968 "Failed to update SF upon disassociation\n");
1969
6b28f978
EG		 1970 /*
1971 * If we get an assert during the connection (after the
1972 * station has been added, but before the vif is set
1973 * to associated), mac80211 will re-add the station and
1974 * then configure the vif. Since the vif is not
1975 * associated, we would remove the station here and
1976 * this would fail the recovery.
1977 */
1978 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1979 &mvm->status)) {
1980 /*
1981 * Remove AP station now that
1982 * the MAC is unassoc
1983 */
1984 ret = iwl_mvm_rm_sta_id(mvm, vif,
1985 mvmvif->ap_sta_id);
1986 if (ret)
1987 IWL_ERR(mvm,
1988 "failed to remove AP station\n");
1989
1990 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1991 mvm->d0i3_ap_sta_id =
1992 IWL_MVM_INVALID_STA;
1993 mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
1994 }
37577fe2 1995
8ca151b5 1996 /* remove quota for this interface */
7754ae79 1997 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1998 if (ret)
1999 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2000
2001 if (vif->p2p)
2002 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2003
2004 /* this will take the cleared BSSID from bss_conf */
2005 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2006 if (ret)
2007 IWL_ERR(mvm,
2008 "failed to update MAC %pM (clear after unassoc)\n",
2009 vif->addr);
8ca151b5 2010 }
a20fd398 2011
a07a8f37
SS		 2012 /*
2013 * The firmware tracks the MU-MIMO group on its own.
f92659a1 2014 * However, on HW restart we should restore this data.
a07a8f37
SS		 2015 */
2016 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 2017 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 2018 ret = iwl_mvm_update_mu_groups(mvm, vif);
2019 if (ret)
2020 IWL_ERR(mvm,
2021 "failed to update VHT MU_MIMO groups\n");
2022 }
2023
e59647ea 2024 iwl_mvm_recalc_multicast(mvm);
34672bb3 2025 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 2026
a20fd398
AO		 2027 /* reset rssi values */
2028 mvmvif->bf_data.ave_beacon_signal = 0;
2029
8e484f0b 2030 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2031 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2032 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2033 if (fw_has_capa(&mvm->fw->ucode_capa,
2034 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2035 iwl_mvm_config_scan(mvm);
b45242c9
AS		 2036 }
2037
2038 if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e 2039 /*
b45242c9 2040 * We received a beacon from the associated AP so
210a544e
JB		 2041 * remove the session protection.
2042 */
3edfb5f4 2043 iwl_mvm_stop_session_protection(mvm, vif);
cc87d322 2044
cc87d322
EH		 2045 iwl_mvm_sf_update(mvm, vif, false);
2046 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2047 }
2048
283115fb
AA		 2049 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2050 /*
2051 * Send power command on every beacon change,
2052 * because we may have not enabled beacon abort yet.
2053 */
2054 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2055 ret = iwl_mvm_power_update_mac(mvm);
2056 if (ret)
2057 IWL_ERR(mvm, "failed to update power mode\n");
2058 }
2059
88f2fd73
MG		 2060 if (changes & BSS_CHANGED_TXPOWER) {
2061 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2062 bss_conf->txpower);
2063 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2064 }
a20fd398
AO		 2065
2066 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2067 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2068 /* reset cqm events tracking */
2069 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2070 if (mvmvif->bf_data.bf_enabled) {
2071 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2072 if (ret)
2073 IWL_ERR(mvm,
2074 "failed to update CQM thresholds\n");
2075 }
a20fd398 2076 }
2ee8f021
EP		 2077
2078 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2079 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2080 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2081 }
8ca151b5
JB		 2082}
2083
5023d966
JB		 2084static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2085 struct ieee80211_vif *vif)
8ca151b5
JB		 2086{
2087 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2088 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2089 int ret;
2090
576eeee9
EP		 2091 /*
2092 * iwl_mvm_mac_ctxt_add() might read directly from the device
2093 * (the system time), so make sure it is available.
2094 */
2095 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2096 if (ret)
2097 return ret;
2098
8ca151b5
JB		 2099 mutex_lock(&mvm->mutex);
2100
2101 /* Send the beacon template */
2102 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2103 if (ret)
2104 goto out_unlock;
2105
6e97b0d2
IP		 2106 /*
2107 * Re-calculate the tsf id, as the master-slave relations depend on the
2108 * beacon interval, which was not known when the AP interface was added.
2109 */
2110 if (vif->type == NL80211_IFTYPE_AP)
2111 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2112
94939080
GG		 2113 mvmvif->ap_assoc_sta_count = 0;
2114
8ca151b5
JB		 2115 /* Add the mac context */
2116 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2117 if (ret)
2118 goto out_unlock;
2119
2120 /* Perform the binding */
2121 ret = iwl_mvm_binding_add_vif(mvm, vif);
2122 if (ret)
2123 goto out_remove;
2124
ced19f26 2125 ret = iwl_mvm_add_mcast_sta(mvm, vif);
8ca151b5
JB		 2126 if (ret)
2127 goto out_unbind;
2128
ced19f26
SS		 2129 /* Send the bcast station. At this stage the TBTT and DTIM time events
2130 * are added and applied to the scheduler */
2131 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
26d6c16b 2132 if (ret)
ced19f26 2133 goto out_rm_mcast;
26d6c16b 2134
5691e218
IP		 2135 /* must be set before quota calculations */
2136 mvmvif->ap_ibss_active = true;
2137
a11e144e 2138 /* power updated needs to be done before quotas */
999609f1 2139 iwl_mvm_power_update_mac(mvm);
a11e144e 2140
7754ae79 2141 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2142 if (ret)
a11e144e 2143 goto out_quota_failed;
8ca151b5 2144
5023d966 2145 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2146 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2147 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2148
29a90a49
EP		 2149 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2150
8e484f0b 2151 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2152
f697267f
AN		 2153 /* we don't support TDLS during DCM */
2154 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2155 iwl_mvm_teardown_tdls_peers(mvm);
2156
939e4904 2157 goto out_unlock;
8ca151b5 2158
a11e144e 2159out_quota_failed:
999609f1 2160 iwl_mvm_power_update_mac(mvm);
5691e218 2161 mvmvif->ap_ibss_active = false;
013290aa 2162 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2163out_rm_mcast:
2164 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5
JB		 2165out_unbind:
2166 iwl_mvm_binding_remove_vif(mvm, vif);
2167out_remove:
2168 iwl_mvm_mac_ctxt_remove(mvm, vif);
2169out_unlock:
2170 mutex_unlock(&mvm->mutex);
576eeee9 2171 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2172 return ret;
2173}
2174
5023d966
JB		 2175static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2176 struct ieee80211_vif *vif)
8ca151b5
JB		 2177{
2178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2179 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2180
38a12b5b
JB		 2181 iwl_mvm_prepare_mac_removal(mvm, vif);
2182
8ca151b5
JB		 2183 mutex_lock(&mvm->mutex);
2184
664322fa 2185 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2186 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2187 iwl_mvm_remove_time_event(mvm, mvmvif,
2188 &mvmvif->time_event_data);
664322fa 2189 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2190 mvmvif->csa_countdown = false;
7f0a7c67 2191 }
664322fa 2192
003e5236
AO		 2193 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2194 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2195 mvm->csa_tx_block_bcn_timeout = 0;
2196 }
2197
5023d966 2198 mvmvif->ap_ibss_active = false;
1c87bbad 2199 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2200
8e484f0b 2201 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2202
29a90a49
EP		 2203 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2204
5023d966 2205 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2206 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2207 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2208
7754ae79 2209 iwl_mvm_update_quotas(mvm, false, NULL);
ced19f26
SS		 2210
2211 /*
2212 * This is not very nice, but the simplest:
2213 * For older FWs removing the mcast sta before the bcast station may
2214 * cause assert 0x2b00.
2215 * This is fixed in later FW (which will stop beaconing when removing
2216 * bcast station).
2217 * So make the order of removal depend on the TLV
2218 */
2219 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2220 iwl_mvm_rm_mcast_sta(mvm, vif);
013290aa 2221 iwl_mvm_send_rm_bcast_sta(mvm, vif);
ced19f26
SS		 2222 if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2223 iwl_mvm_rm_mcast_sta(mvm, vif);
8ca151b5 2224 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2225
999609f1 2226 iwl_mvm_power_update_mac(mvm);
a11e144e 2227
8ca151b5
JB		 2228 iwl_mvm_mac_ctxt_remove(mvm, vif);
2229
2230 mutex_unlock(&mvm->mutex);
2231}
2232
5023d966
JB		 2233static void
2234iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2235 struct ieee80211_vif *vif,
2236 struct ieee80211_bss_conf *bss_conf,
2237 u32 changes)
8ca151b5 2238{
be2056fc 2239 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2240
be2056fc
IP		 2241 /* Changes will be applied when the AP/IBSS is started */
2242 if (!mvmvif->ap_ibss_active)
2243 return;
2244
863230da 2245 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2246 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2247 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2248 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2249
8ca151b5 2250 /* Need to send a new beacon template to the FW */
863230da
JB		 2251 if (changes & BSS_CHANGED_BEACON &&
2252 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2253 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2254
2255 if (changes & BSS_CHANGED_TXPOWER) {
2256 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2257 bss_conf->txpower);
2258 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2259 }
8ca151b5
JB		 2260}
2261
2262static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2263 struct ieee80211_vif *vif,
2264 struct ieee80211_bss_conf *bss_conf,
2265 u32 changes)
2266{
2267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2268
576eeee9
EP		 2269 /*
2270 * iwl_mvm_bss_info_changed_station() might call
2271 * iwl_mvm_protect_session(), which reads directly from
2272 * the device (the system time), so make sure it is available.
2273 */
2274 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2275 return;
2276
8ca151b5
JB		 2277 mutex_lock(&mvm->mutex);
2278
723f02ed 2279 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2280 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2281
8ca151b5
JB		 2282 switch (vif->type) {
2283 case NL80211_IFTYPE_STATION:
2284 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2285 break;
2286 case NL80211_IFTYPE_AP:
5023d966
JB		 2287 case NL80211_IFTYPE_ADHOC:
2288 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2289 break;
91b08c2d
AE		 2290 case NL80211_IFTYPE_MONITOR:
2291 if (changes & BSS_CHANGED_MU_GROUPS)
2292 iwl_mvm_update_mu_groups(mvm, vif);
2293 break;
8ca151b5
JB		 2294 default:
2295 /* shouldn't happen */
2296 WARN_ON_ONCE(1);
2297 }
2298
2299 mutex_unlock(&mvm->mutex);
576eeee9 2300 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2301}
2302
2303static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2304 struct ieee80211_vif *vif,
c56ef672 2305 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2306{
2307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2308 int ret;
2309
6749dd80
LC		 2310 if (hw_req->req.n_channels == 0 ||
2311 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2312 return -EINVAL;
2313
2314 mutex_lock(&mvm->mutex);
6749dd80 2315 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2316 mutex_unlock(&mvm->mutex);
6749dd80 2317
8ca151b5
JB		 2318 return ret;
2319}
2320
2321static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2322 struct ieee80211_vif *vif)
2323{
2324 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2325
2326 mutex_lock(&mvm->mutex);
2327
e7d3abab
LC		 2328 /* Due to a race condition, it's possible that mac80211 asks
2329 * us to stop a hw_scan when it's already stopped. This can
2330 * happen, for instance, if we stopped the scan ourselves,
2331 * called ieee80211_scan_completed() and the userspace called
2332 * cancel scan scan before ieee80211_scan_work() could run.
2333 * To handle that, simply return if the scan is not running.
2334 */
262888fc 2335 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2336 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2337
2338 mutex_unlock(&mvm->mutex);
2339}
2340
2341static void
2342iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2343 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2344 int num_frames,
2345 enum ieee80211_frame_release_type reason,
2346 bool more_data)
2347{
2348 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2349
3e56eadf 2350 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2351
3e56eadf
JB		 2352 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2353 tids, more_data, false);
2354}
2355
2356static void
2357iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2358 struct ieee80211_sta *sta, u16 tids,
2359 int num_frames,
2360 enum ieee80211_frame_release_type reason,
2361 bool more_data)
2362{
2363 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2364
9a3fcf91 2365 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
3e56eadf
JB		 2366
2367 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2368 tids, more_data, true);
8ca151b5
JB		 2369}
2370
65e25482
JB		 2371static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2372 enum sta_notify_cmd cmd,
2373 struct ieee80211_sta *sta)
8ca151b5
JB		 2374{
2375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2376 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2377 unsigned long txqs = 0, tids = 0;
3e56eadf 2378 int tid;
8ca151b5 2379
960f864b
JB		 2380 /*
2381 * If we have TVQM then we get too high queue numbers - luckily
2382 * we really shouldn't get here with that because such hardware
2383 * should have firmware supporting buffer station offload.
2384 */
2385 if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2386 return;
2387
c22b0ff5
EG		 2388 spin_lock_bh(&mvmsta->lock);
2389 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2390 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2391
6862fcee 2392 if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
1c17627b
SS		 2393 continue;
2394
c22b0ff5
EG		 2395 __set_bit(tid_data->txq_id, &txqs);
2396
dd32162d 2397 if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
c22b0ff5
EG		 2398 continue;
2399
2400 __set_bit(tid, &tids);
2401 }
2402
8ca151b5
JB		 2403 switch (cmd) {
2404 case STA_NOTIFY_SLEEP:
c22b0ff5 2405 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2406 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2407
2408 if (txqs)
2409 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2410 /*
2411 * The fw updates the STA to be asleep. Tx packets on the Tx
2412 * queues to this station will not be transmitted. The fw will
2413 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2414 */
2415 break;
2416 case STA_NOTIFY_AWAKE:
0ae98812 2417 if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
8ca151b5 2418 break;
c22b0ff5
EG		 2419
2420 if (txqs)
2421 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2422 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2423 break;
2424 default:
2425 break;
2426 }
c22b0ff5 2427 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2428}
2429
65e25482
JB		 2430static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2431 struct ieee80211_vif *vif,
2432 enum sta_notify_cmd cmd,
2433 struct ieee80211_sta *sta)
2434{
2435 __iwl_mvm_mac_sta_notify(hw, cmd, sta);
2436}
2437
2438void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2439{
2440 struct iwl_rx_packet *pkt = rxb_addr(rxb);
2441 struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2442 struct ieee80211_sta *sta;
2443 struct iwl_mvm_sta *mvmsta;
2444 bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2445
2446 if (WARN_ON(notif->sta_id >= ARRAY_SIZE(mvm->fw_id_to_mac_id)))
2447 return;
2448
2449 rcu_read_lock();
a9560029 2450 sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
65e25482
JB		 2451 if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2452 rcu_read_unlock();
2453 return;
2454 }
2455
2456 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2457
2458 if (!mvmsta->vif ||
2459 mvmsta->vif->type != NL80211_IFTYPE_AP) {
2460 rcu_read_unlock();
2461 return;
2462 }
2463
2464 if (mvmsta->sleeping != sleeping) {
2465 mvmsta->sleeping = sleeping;
2466 __iwl_mvm_mac_sta_notify(mvm->hw,
2467 sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2468 sta);
2469 ieee80211_sta_ps_transition(sta, sleeping);
2470 }
2471
2472 if (sleeping) {
2473 switch (notif->type) {
2474 case IWL_MVM_PM_EVENT_AWAKE:
2475 case IWL_MVM_PM_EVENT_ASLEEP:
2476 break;
2477 case IWL_MVM_PM_EVENT_UAPSD:
2478 ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2479 break;
2480 case IWL_MVM_PM_EVENT_PS_POLL:
2481 ieee80211_sta_pspoll(sta);
2482 break;
2483 default:
2484 break;
2485 }
2486 }
2487
2488 rcu_read_unlock();
2489}
2490
1ddbbb0c
JB		 2491static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2492 struct ieee80211_vif *vif,
2493 struct ieee80211_sta *sta)
2494{
2495 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2496 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2497
2498 /*
2499 * This is called before mac80211 does RCU synchronisation,
2500 * so here we already invalidate our internal RCU-protected
2501 * station pointer. The rest of the code will thus no longer
2502 * be able to find the station this way, and we don't rely
2503 * on further RCU synchronisation after the sta_state()
2504 * callback deleted the station.
2505 */
2506 mutex_lock(&mvm->mutex);
2507 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2508 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2509 ERR_PTR(-ENOENT));
94939080 2510
1ddbbb0c
JB		 2511 mutex_unlock(&mvm->mutex);
2512}
2513
bd1ba664
JB		 2514static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2515 const u8 *bssid)
2516{
2517 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2518 return;
2519
c5241b0c 2520 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2521 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2522 return;
2523 }
2524
11dee0b4
EG		 2525 if (!vif->p2p &&
2526 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2527 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2528 return;
2529 }
2530
2531 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2532}
2533
1e8f1329
GBA		 2534static void
2535iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2536 struct ieee80211_vif *vif, u8 *peer_addr,
2537 enum nl80211_tdls_operation action)
2538{
2539 struct iwl_fw_dbg_trigger_tlv *trig;
2540 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2541
2542 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2543 return;
2544
2545 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2546 tdls_trig = (void *)trig->data;
7174beb6
JB		 2547 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
2548 ieee80211_vif_to_wdev(vif), trig))
1e8f1329
GBA		 2549 return;
2550
2551 if (!(tdls_trig->action_bitmap & BIT(action)))
2552 return;
2553
2554 if (tdls_trig->peer_mode &&
2555 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2556 return;
2557
7174beb6
JB		 2558 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2559 "TDLS event occurred, peer %pM, action %d",
2560 peer_addr, action);
1e8f1329
GBA		 2561}
2562
24afba76
LK		 2563static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2564 struct iwl_mvm_sta *mvm_sta)
2565{
2566 struct iwl_mvm_tid_data *tid_data;
2567 struct sk_buff *skb;
2568 int i;
2569
2570 spin_lock_bh(&mvm_sta->lock);
2571 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2572 tid_data = &mvm_sta->tid_data[i];
7e39a00d
AS		 2573
2574 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames))) {
2575 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
2576
2577 /*
2578 * The first deferred frame should've stopped the MAC
2579 * queues, so we should never get a second deferred
2580 * frame for the RA/TID.
2581 */
8458e48a 2582 iwl_mvm_start_mac_queues(mvm, BIT(info->hw_queue));
24afba76 2583 ieee80211_free_txskb(mvm->hw, skb);
7e39a00d 2584 }
24afba76
LK		 2585 }
2586 spin_unlock_bh(&mvm_sta->lock);
2587}
2588
8ca151b5
JB		 2589static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2590 struct ieee80211_vif *vif,
2591 struct ieee80211_sta *sta,
2592 enum ieee80211_sta_state old_state,
2593 enum ieee80211_sta_state new_state)
2594{
2595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2596 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
6ea29ce5 2597 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 2598 int ret;
2599
2600 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2601 sta->addr, old_state, new_state);
2602
2603 /* this would be a mac80211 bug ... but don't crash */
2604 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2605 return -EINVAL;
2606
24afba76
LK		 2607 /*
2608 * If we are in a STA removal flow and in DQA mode:
2609 *
2610 * This is after the sync_rcu part, so the queues have already been
2611 * flushed. No more TXs on their way in mac80211's path, and no more in
2612 * the queues.
2613 * Also, we won't be getting any new TX frames for this station.
2614 * What we might have are deferred TX frames that need to be taken care
2615 * of.
2616 *
2617 * Drop any still-queued deferred-frame before removing the STA, and
2618 * make sure the worker is no longer handling frames for this STA.
2619 */
2620 if (old_state == IEEE80211_STA_NONE &&
c8f54701 2621 new_state == IEEE80211_STA_NOTEXIST) {
24afba76
LK		 2622 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2623 flush_work(&mvm->add_stream_wk);
2624
2625 /*
2626 * No need to make sure deferred TX indication is off since the
2627 * worker will already remove it if it was on
2628 */
2629 }
2630
8ca151b5 2631 mutex_lock(&mvm->mutex);
6ea29ce5
JB		 2632 /* track whether or not the station is associated */
2633 mvm_sta->associated = new_state >= IEEE80211_STA_ASSOC;
2634
8ca151b5
JB		 2635 if (old_state == IEEE80211_STA_NOTEXIST &&
2636 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2637 /*
2638 * Firmware bug - it'll crash if the beacon interval is less
2639 * than 16. We can't avoid connecting at all, so refuse the
2640 * station state change, this will cause mac80211 to abandon
2641 * attempts to connect to this AP, and eventually wpa_s will
2642 * blacklist the AP...
2643 */
2644 if (vif->type == NL80211_IFTYPE_STATION &&
2645 vif->bss_conf.beacon_int < 16) {
2646 IWL_ERR(mvm,
2647 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2648 sta->addr, vif->bss_conf.beacon_int);
2649 ret = -EINVAL;
2650 goto out_unlock;
2651 }
cf7b491d
AN		 2652
2653 if (sta->tdls &&
2654 (vif->p2p ||
fa3d07e4
AN		 2655 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2656 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2657 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2658 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2659 ret = -EBUSY;
2660 goto out_unlock;
2661 }
2662
8ca151b5 2663 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2664 if (sta->tdls && ret == 0) {
fa3d07e4 2665 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2666 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2667 NL80211_TDLS_SETUP);
2668 }
8ca151b5
JB		 2669 } else if (old_state == IEEE80211_STA_NONE &&
2670 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2671 /*
2672 * EBS may be disabled due to previous failures reported by FW.
2673 * Reset EBS status here assuming environment has been changed.
2674 */
2675 mvm->last_ebs_successful = true;
bd1ba664 2676 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2677 ret = 0;
2678 } else if (old_state == IEEE80211_STA_AUTH &&
2679 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2680 if (vif->type == NL80211_IFTYPE_AP) {
2681 mvmvif->ap_assoc_sta_count++;
2682 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2683 }
735a0045
GM		 2684
2685 iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
2686 true);
7a453973 2687 ret = iwl_mvm_update_sta(mvm, vif, sta);
8ca151b5
JB		 2688 } else if (old_state == IEEE80211_STA_ASSOC &&
2689 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2690
2691 /* we don't support TDLS during DCM */
2692 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2693 iwl_mvm_teardown_tdls_peers(mvm);
2694
1e8f1329
GBA		 2695 if (sta->tdls)
2696 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2697 NL80211_TDLS_ENABLE_LINK);
2698
7df15b1e 2699 /* enable beacon filtering */
fa7b2e7f 2700 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2701 ret = 0;
2702 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2703 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2704 /* disable beacon filtering */
a1022927 2705 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2706 ret = 0;
2707 } else if (old_state == IEEE80211_STA_ASSOC &&
2708 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2709 if (vif->type == NL80211_IFTYPE_AP) {
2710 mvmvif->ap_assoc_sta_count--;
2711 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2712 }
8ca151b5
JB		 2713 ret = 0;
2714 } else if (old_state == IEEE80211_STA_AUTH &&
2715 new_state == IEEE80211_STA_NONE) {
2716 ret = 0;
2717 } else if (old_state == IEEE80211_STA_NONE &&
2718 new_state == IEEE80211_STA_NOTEXIST) {
2719 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2720 if (sta->tdls) {
fa3d07e4 2721 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2722 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2723 NL80211_TDLS_DISABLE_LINK);
2724 }
8ca151b5
JB		 2725 } else {
2726 ret = -EIO;
2727 }
48bc1307 2728 out_unlock:
8ca151b5
JB		 2729 mutex_unlock(&mvm->mutex);
2730
9c126cd6
LK		 2731 if (sta->tdls && ret == 0) {
2732 if (old_state == IEEE80211_STA_NOTEXIST &&
2733 new_state == IEEE80211_STA_NONE)
2734 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2735 else if (old_state == IEEE80211_STA_NONE &&
2736 new_state == IEEE80211_STA_NOTEXIST)
2737 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2738 }
2739
8ca151b5
JB		 2740 return ret;
2741}
2742
2743static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2744{
2745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2746
2747 mvm->rts_threshold = value;
2748
2749 return 0;
2750}
2751
1f3b0ff8
LE		 2752static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2753 struct ieee80211_vif *vif,
2754 struct ieee80211_sta *sta, u32 changed)
2755{
2756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2757
2758 if (vif->type == NL80211_IFTYPE_STATION &&
2759 changed & IEEE80211_RC_NSS_CHANGED)
2760 iwl_mvm_sf_update(mvm, vif, false);
2761}
2762
8ca151b5
JB		 2763static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2764 struct ieee80211_vif *vif, u16 ac,
2765 const struct ieee80211_tx_queue_params *params)
2766{
2767 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2768 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2769
2770 mvmvif->queue_params[ac] = *params;
2771
2772 /*
2773 * No need to update right away, we'll get BSS_CHANGED_QOS
2774 * The exception is P2P_DEVICE interface which needs immediate update.
2775 */
2776 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2777 int ret;
2778
2779 mutex_lock(&mvm->mutex);
3dfd3a97 2780 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2781 mutex_unlock(&mvm->mutex);
2782 return ret;
2783 }
2784 return 0;
2785}
2786
2787static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2788 struct ieee80211_vif *vif)
2789{
2790 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2791 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2792 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2793
2794 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2795 return;
2796
576eeee9
EP		 2797 /*
2798 * iwl_mvm_protect_session() reads directly from the device
2799 * (the system time), so make sure it is available.
2800 */
2801 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2802 return;
2803
8ca151b5
JB		 2804 mutex_lock(&mvm->mutex);
2805 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2806 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2807 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2808
2809 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2810}
2811
35a000b7
DS		 2812static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2813 struct ieee80211_vif *vif,
2814 struct cfg80211_sched_scan_request *req,
633e2713 2815 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2816{
2817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2818
35a000b7 2819 int ret;
4660dfbb 2820
35a000b7
DS		 2821 mutex_lock(&mvm->mutex);
2822
1f940386 2823 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2824 ret = -EBUSY;
2825 goto out;
2826 }
2827
19945dfb 2828 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2829
35a000b7
DS		 2830out:
2831 mutex_unlock(&mvm->mutex);
2832 return ret;
2833}
2834
37e3308c
JB		 2835static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2836 struct ieee80211_vif *vif)
35a000b7
DS		 2837{
2838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2839 int ret;
35a000b7
DS		 2840
2841 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2842
2843 /* Due to a race condition, it's possible that mac80211 asks
2844 * us to stop a sched_scan when it's already stopped. This
2845 * can happen, for instance, if we stopped the scan ourselves,
2846 * called ieee80211_sched_scan_stopped() and the userspace called
2847 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2848 * could run. To handle this, simply return if the scan is
2849 * not running.
2850 */
262888fc 2851 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2852 mutex_unlock(&mvm->mutex);
2853 return 0;
2854 }
2855
c7d42480 2856 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2857 mutex_unlock(&mvm->mutex);
33ea27f6 2858 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2859
33ea27f6 2860 return ret;
35a000b7
DS		 2861}
2862
8ca151b5
JB		 2863static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2864 enum set_key_cmd cmd,
2865 struct ieee80211_vif *vif,
2866 struct ieee80211_sta *sta,
2867 struct ieee80211_key_conf *key)
2868{
2869 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2870 struct iwl_mvm_sta *mvmsta;
2871 struct iwl_mvm_key_pn *ptk_pn;
2872 int keyidx = key->keyidx;
8ca151b5 2873 int ret;
d6ee54a9 2874 u8 key_offset;
8ca151b5 2875
3b37f4c9 2876 if (iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 2877 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2878 return -EOPNOTSUPP;
2879 }
2880
2881 switch (key->cipher) {
2882 case WLAN_CIPHER_SUITE_TKIP:
2883 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2884 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2885 break;
ca8c0f4b 2886 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2887 case WLAN_CIPHER_SUITE_GCMP:
2888 case WLAN_CIPHER_SUITE_GCMP_256:
85aeb58c
DS		 2889 if (!iwl_mvm_has_new_tx_api(mvm))
2890 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
ca8c0f4b 2891 break;
8ca151b5 2892 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2893 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2894 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2895 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2896 break;
2897 case WLAN_CIPHER_SUITE_WEP40:
2898 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2899 /* For non-client mode, only use WEP keys for TX as we probably
2900 * don't have a station yet anyway and would then have to keep
2901 * track of the keys, linking them to each of the clients/peers
2902 * as they appear. For now, don't do that, for performance WEP
2903 * offload doesn't really matter much, but we need it for some
2904 * other offload features in client mode.
8ca151b5 2905 */
ba3943b0
JB		 2906 if (vif->type != NL80211_IFTYPE_STATION)
2907 return 0;
2908 break;
8ca151b5 2909 default:
e36e5433
MS		 2910 /* currently FW supports only one optional cipher scheme */
2911 if (hw->n_cipher_schemes &&
2912 hw->cipher_schemes->cipher == key->cipher)
2913 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2914 else
2915 return -EOPNOTSUPP;
8ca151b5
JB		 2916 }
2917
2918 mutex_lock(&mvm->mutex);
2919
2920 switch (cmd) {
2921 case SET_KEY:
5023d966
JB		 2922 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2923 vif->type == NL80211_IFTYPE_AP) && !sta) {
2924 /*
2925 * GTK on AP interface is a TX-only key, return 0;
2926 * on IBSS they're per-station and because we're lazy
2927 * we don't support them for RX, so do the same.
8e160ab8 2928 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2929 */
8e160ab8
AB		 2930 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2931 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2932 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2933 ret = -EOPNOTSUPP;
2934 else
2935 ret = 0;
85aeb58c
DS		 2936
2937 if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
2938 key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
2939 !iwl_mvm_has_new_tx_api(mvm)) {
2940 key->hw_key_idx = STA_KEY_IDX_INVALID;
2941 break;
2942 }
6caffd4f
JB		 2943 }
2944
b546dcd6
JB		 2945 /* During FW restart, in order to restore the state as it was,
2946 * don't try to reprogram keys we previously failed for.
2947 */
2948 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2949 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2950 IWL_DEBUG_MAC80211(mvm,
2951 "skip invalid idx key programming during restart\n");
2952 ret = 0;
2953 break;
2954 }
2955
f5e28eac
JB		 2956 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2957 sta && iwl_mvm_has_new_rx_api(mvm) &&
2958 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2959 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2960 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2961 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2962 struct ieee80211_key_seq seq;
2963 int tid, q;
2964
2965 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2966 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2967 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2968 mvm->trans->num_rx_queues *
2969 sizeof(ptk_pn->q[0]),
2970 GFP_KERNEL);
2971 if (!ptk_pn) {
2972 ret = -ENOMEM;
2973 break;
2974 }
2975
2976 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2977 ieee80211_get_key_rx_seq(key, tid, &seq);
2978 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2979 memcpy(ptk_pn->q[q].pn[tid],
2980 seq.ccmp.pn,
2981 IEEE80211_CCMP_PN_LEN);
2982 }
2983
2984 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2985 }
2986
d6ee54a9
LC		 2987 /* in HW restart reuse the index, otherwise request a new one */
2988 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2989 key_offset = key->hw_key_idx;
2990 else
2991 key_offset = STA_KEY_IDX_INVALID;
2992
8ca151b5 2993 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2994 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2995 if (ret) {
2996 IWL_WARN(mvm, "set key failed\n");
2997 /*
2998 * can't add key for RX, but we don't need it
2999 * in the device for TX so still return 0
3000 */
6caffd4f 3001 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 3002 ret = 0;
3003 }
3004
3005 break;
3006 case DISABLE_KEY:
6caffd4f
JB		 3007 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3008 ret = 0;
3009 break;
3010 }
3011
f5e28eac
JB		 3012 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
3013 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3014 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 3015 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3016 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 3017 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3018 ptk_pn = rcu_dereference_protected(
3019 mvmsta->ptk_pn[keyidx],
3020 lockdep_is_held(&mvm->mutex));
3021 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3022 if (ptk_pn)
3023 kfree_rcu(ptk_pn, rcu_head);
3024 }
3025
8ca151b5
JB		 3026 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3027 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3028 break;
3029 default:
3030 ret = -EINVAL;
3031 }
3032
3033 mutex_unlock(&mvm->mutex);
3034 return ret;
3035}
3036
3037static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3038 struct ieee80211_vif *vif,
3039 struct ieee80211_key_conf *keyconf,
3040 struct ieee80211_sta *sta,
3041 u32 iv32, u16 *phase1key)
3042{
3043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3044
5023d966
JB		 3045 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3046 return;
3047
8ca151b5
JB		 3048 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3049}
3050
3051
b112889c
AM		 3052static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3053 struct iwl_rx_packet *pkt, void *data)
3054{
3055 struct iwl_mvm *mvm =
3056 container_of(notif_wait, struct iwl_mvm, notif_wait);
3057 struct iwl_hs20_roc_res *resp;
3058 int resp_len = iwl_rx_packet_payload_len(pkt);
3059 struct iwl_mvm_time_event_data *te_data = data;
3060
3061 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3062 return true;
3063
3064 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3065 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3066 return true;
3067 }
3068
3069 resp = (void *)pkt->data;
3070
3071 IWL_DEBUG_TE(mvm,
3072 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3073 resp->status, resp->event_unique_id);
3074
3075 te_data->uid = le32_to_cpu(resp->event_unique_id);
3076 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3077 te_data->uid);
3078
3079 spin_lock_bh(&mvm->time_event_lock);
3080 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3081 spin_unlock_bh(&mvm->time_event_lock);
3082
3083 return true;
3084}
3085
dc28e12f
MG		 3086#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3087#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3088#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3089#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3090#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 3091static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3092 struct ieee80211_channel *channel,
3093 struct ieee80211_vif *vif,
3094 int duration)
3095{
3096 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3098 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3099 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 3100 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 3101 u32 dtim_interval = vif->bss_conf.dtim_period *
3102 vif->bss_conf.beacon_int;
3103 u32 req_dur, delay;
b112889c
AM		 3104 struct iwl_hs20_roc_req aux_roc_req = {
3105 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3106 .id_and_color =
3107 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3108 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3109 /* Set the channel info data */
57fbcce3 3110 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 3111 PHY_BAND_24 : PHY_BAND_5,
3112 .channel_info.channel = channel->hw_value,
3113 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3114 /* Set the time and duration */
3115 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 3116 };
3117
dc28e12f
MG		 3118 delay = AUX_ROC_MIN_DELAY;
3119 req_dur = MSEC_TO_TU(duration);
3120
3121 /*
3122 * If we are associated we want the delay time to be at least one
3123 * dtim interval so that the FW can wait until after the DTIM and
3124 * then start the time event, this will potentially allow us to
3125 * remain off-channel for the max duration.
3126 * Since we want to use almost a whole dtim interval we would also
3127 * like the delay to be for 2-3 dtim intervals, in case there are
3128 * other time events with higher priority.
3129 */
3130 if (vif->bss_conf.assoc) {
3131 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3132 /* We cannot remain off-channel longer than the DTIM interval */
3133 if (dtim_interval <= req_dur) {
3134 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3135 if (req_dur <= AUX_ROC_MIN_DURATION)
3136 req_dur = dtim_interval -
3137 AUX_ROC_MIN_SAFETY_BUFFER;
3138 }
3139 }
3140
3141 aux_roc_req.duration = cpu_to_le32(req_dur);
3142 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3143
3144 IWL_DEBUG_TE(mvm,
3145 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3146 channel->hw_value, req_dur, duration, delay,
3147 dtim_interval);
b112889c
AM		 3148 /* Set the node address */
3149 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3150
a6cc5163
MG		 3151 lockdep_assert_held(&mvm->mutex);
3152
3153 spin_lock_bh(&mvm->time_event_lock);
3154
3155 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3156 spin_unlock_bh(&mvm->time_event_lock);
3157 return -EIO;
3158 }
3159
b112889c
AM		 3160 te_data->vif = vif;
3161 te_data->duration = duration;
3162 te_data->id = HOT_SPOT_CMD;
3163
b112889c
AM		 3164 spin_unlock_bh(&mvm->time_event_lock);
3165
3166 /*
3167 * Use a notification wait, which really just processes the
3168 * command response and doesn't wait for anything, in order
3169 * to be able to process the response and get the UID inside
3170 * the RX path. Using CMD_WANT_SKB doesn't work because it
3171 * stores the buffer and then wakes up this thread, by which
3172 * time another notification (that the time event started)
3173 * might already be processed unsuccessfully.
3174 */
3175 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3176 time_event_response,
3177 ARRAY_SIZE(time_event_response),
3178 iwl_mvm_rx_aux_roc, te_data);
3179
3180 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3181 &aux_roc_req);
3182
3183 if (res) {
3184 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3185 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3186 goto out_clear_te;
3187 }
3188
3189 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3190 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3191 /* should never fail */
3192 WARN_ON_ONCE(res);
3193
3194 if (res) {
3195 out_clear_te:
3196 spin_lock_bh(&mvm->time_event_lock);
3197 iwl_mvm_te_clear_data(mvm, te_data);
3198 spin_unlock_bh(&mvm->time_event_lock);
3199 }
3200
3201 return res;
3202}
3203
8ca151b5
JB		 3204static int iwl_mvm_roc(struct ieee80211_hw *hw,
3205 struct ieee80211_vif *vif,
3206 struct ieee80211_channel *channel,
d339d5ca
IP		 3207 int duration,
3208 enum ieee80211_roc_type type)
8ca151b5
JB		 3209{
3210 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3211 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3212 struct cfg80211_chan_def chandef;
31d385ae
IP		 3213 struct iwl_mvm_phy_ctxt *phy_ctxt;
3214 int ret, i;
3215
3216 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3217 duration, type);
8ca151b5 3218
6ed13164
MG		 3219 flush_work(&mvm->roc_done_wk);
3220
a6cc5163
MG		 3221 mutex_lock(&mvm->mutex);
3222
b112889c
AM		 3223 switch (vif->type) {
3224 case NL80211_IFTYPE_STATION:
859d914c
JB		 3225 if (fw_has_capa(&mvm->fw->ucode_capa,
3226 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3227 /* Use aux roc framework (HS20) */
3228 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3229 vif, duration);
3230 goto out_unlock;
3231 }
3232 IWL_ERR(mvm, "hotspot not supported\n");
3233 ret = -EINVAL;
a6cc5163 3234 goto out_unlock;
b112889c
AM		 3235 case NL80211_IFTYPE_P2P_DEVICE:
3236 /* handle below */
3237 break;
3238 default:
3239 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3240 ret = -EINVAL;
3241 goto out_unlock;
8ca151b5
JB		 3242 }
3243
31d385ae
IP		 3244 for (i = 0; i < NUM_PHY_CTX; i++) {
3245 phy_ctxt = &mvm->phy_ctxts[i];
3246 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3247 continue;
3248
3249 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3250 /*
3251 * Unbind the P2P_DEVICE from the current PHY context,
3252 * and if the PHY context is not used remove it.
3253 */
3254 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3255 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3256 goto out_unlock;
3257
3258 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3259
3260 /* Bind the P2P_DEVICE to the current PHY Context */
3261 mvmvif->phy_ctxt = phy_ctxt;
3262
3263 ret = iwl_mvm_binding_add_vif(mvm, vif);
3264 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3265 goto out_unlock;
3266
3267 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3268 goto schedule_time_event;
3269 }
3270 }
3271
3272 /* Need to update the PHY context only if the ROC channel changed */
3273 if (channel == mvmvif->phy_ctxt->channel)
3274 goto schedule_time_event;
3275
8ca151b5 3276 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3277
31d385ae
IP		 3278 /*
3279 * Change the PHY context configuration as it is currently referenced
3280 * only by the P2P Device MAC
3281 */
3282 if (mvmvif->phy_ctxt->ref == 1) {
3283 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3284 &chandef, 1, 1);
3285 if (ret)
3286 goto out_unlock;
3287 } else {
3288 /*
3289 * The PHY context is shared with other MACs. Need to remove the
3290 * P2P Device from the binding, allocate an new PHY context and
3291 * create a new binding
3292 */
3293 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3294 if (!phy_ctxt) {
3295 ret = -ENOSPC;
3296 goto out_unlock;
3297 }
3298
3299 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3300 1, 1);
3301 if (ret) {
3302 IWL_ERR(mvm, "Failed to change PHY context\n");
3303 goto out_unlock;
3304 }
3305
3306 /* Unbind the P2P_DEVICE from the current PHY context */
3307 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3308 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3309 goto out_unlock;
3310
3311 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3312
3313 /* Bind the P2P_DEVICE to the new allocated PHY context */
3314 mvmvif->phy_ctxt = phy_ctxt;
3315
3316 ret = iwl_mvm_binding_add_vif(mvm, vif);
3317 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3318 goto out_unlock;
3319
3320 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3321 }
3322
3323schedule_time_event:
8ca151b5 3324 /* Schedule the time events */
e635c797 3325 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3326
31d385ae 3327out_unlock:
8ca151b5
JB		 3328 mutex_unlock(&mvm->mutex);
3329 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3330 return ret;
3331}
3332
3333static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3334{
3335 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3336
3337 IWL_DEBUG_MAC80211(mvm, "enter\n");
3338
3339 mutex_lock(&mvm->mutex);
bf5da87f 3340 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3341 mutex_unlock(&mvm->mutex);
3342
3343 IWL_DEBUG_MAC80211(mvm, "leave\n");
3344 return 0;
3345}
3346
b08c1d97
LC		 3347static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3348 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3349{
fe0f2de3
IP		 3350 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3351 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3352 int ret;
3353
b08c1d97
LC		 3354 lockdep_assert_held(&mvm->mutex);
3355
53a9d61e 3356 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3357
fe0f2de3
IP		 3358 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3359 if (!phy_ctxt) {
3360 ret = -ENOSPC;
3361 goto out;
3362 }
8ca151b5 3363
dcbc3e1a 3364 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3365 ctx->rx_chains_static,
3366 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3367 if (ret) {
3368 IWL_ERR(mvm, "Failed to add PHY context\n");
3369 goto out;
3370 }
3371
53a9d61e 3372 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3373 *phy_ctxt_id = phy_ctxt->id;
3374out:
b08c1d97
LC		 3375 return ret;
3376}
3377
3378static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3379 struct ieee80211_chanctx_conf *ctx)
3380{
3381 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3382 int ret;
3383
3384 mutex_lock(&mvm->mutex);
3385 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3386 mutex_unlock(&mvm->mutex);
b08c1d97 3387
8ca151b5
JB		 3388 return ret;
3389}
3390
b08c1d97
LC		 3391static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3392 struct ieee80211_chanctx_conf *ctx)
3393{
3394 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3395 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3396
3397 lockdep_assert_held(&mvm->mutex);
3398
3399 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3400}
3401
8ca151b5
JB		 3402static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3403 struct ieee80211_chanctx_conf *ctx)
3404{
3405 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3406
3407 mutex_lock(&mvm->mutex);
b08c1d97 3408 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3409 mutex_unlock(&mvm->mutex);
3410}
3411
3412static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3413 struct ieee80211_chanctx_conf *ctx,
3414 u32 changed)
3415{
3416 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3417 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3418 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3419
31d385ae
IP		 3420 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3421 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3422 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3423 IEEE80211_CHANCTX_CHANGE_RADAR |
3424 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3425 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3426 phy_ctxt->ref, changed))
3427 return;
3428
8ca151b5 3429 mutex_lock(&mvm->mutex);
7a20bcce
EG		 3430
3431 /* we are only changing the min_width, may be a noop */
3432 if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
3433 if (phy_ctxt->width == ctx->min_def.width)
3434 goto out_unlock;
3435
3436 /* we are just toggling between 20_NOHT and 20 */
3437 if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
3438 ctx->min_def.width <= NL80211_CHAN_WIDTH_20)
3439 goto out_unlock;
3440 }
3441
4d66449a 3442 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3443 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3444 ctx->rx_chains_static,
3445 ctx->rx_chains_dynamic);
7a20bcce
EG		 3446
3447out_unlock:
8ca151b5
JB		 3448 mutex_unlock(&mvm->mutex);
3449}
3450
b08c1d97
LC		 3451static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3452 struct ieee80211_vif *vif,
f0c97783
LC		 3453 struct ieee80211_chanctx_conf *ctx,
3454 bool switching_chanctx)
8ca151b5 3455{
fe0f2de3
IP		 3456 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3457 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3458 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3459 int ret;
3460
b08c1d97 3461 lockdep_assert_held(&mvm->mutex);
8ca151b5 3462
fe0f2de3 3463 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3464
3465 switch (vif->type) {
3466 case NL80211_IFTYPE_AP:
4741dd04
LC		 3467 /* only needed if we're switching chanctx (i.e. during CSA) */
3468 if (switching_chanctx) {
bd3398e2
AO		 3469 mvmvif->ap_ibss_active = true;
3470 break;
3471 }
5023d966 3472 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3473 /*
3474 * The AP binding flow is handled as part of the start_ap flow
5023d966 3475 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3476 */
3477 ret = 0;
b08c1d97 3478 goto out;
8ca151b5 3479 case NL80211_IFTYPE_STATION:
2533edce 3480 break;
8ca151b5 3481 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3482 /* always disable PS when a monitor interface is active */
3483 mvmvif->ps_disabled = true;
8ca151b5
JB		 3484 break;
3485 default:
3486 ret = -EINVAL;
b08c1d97 3487 goto out;
8ca151b5
JB		 3488 }
3489
3490 ret = iwl_mvm_binding_add_vif(mvm, vif);
3491 if (ret)
b08c1d97 3492 goto out;
8ca151b5
JB		 3493
3494 /*
92d85562
AB		 3495 * Power state must be updated before quotas,
3496 * otherwise fw will complain.
3497 */
999609f1 3498 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3499
3500 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3501 * interfaces. For the other types, the bss_info changed flow
3502 * will handle quota settings.
3503 */
3504 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3505 mvmvif->monitor_active = true;
7754ae79 3506 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3507 if (ret)
3508 goto out_remove_binding;
0e39eb03
CRI		 3509
3510 ret = iwl_mvm_add_snif_sta(mvm, vif);
3511 if (ret)
3512 goto out_remove_binding;
3513
8ca151b5
JB		 3514 }
3515
bd3398e2 3516 /* Handle binding during CSA */
a57c688d 3517 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3518 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3519 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3520 }
3521
4741dd04 3522 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3523 u32 duration = 2 * vif->bss_conf.beacon_int;
3524
3525 /* iwl_mvm_protect_session() reads directly from the
3526 * device (the system time), so make sure it is
3527 * available.
3528 */
3529 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3530 if (ret)
3531 goto out_remove_binding;
3532
3533 /* Protect the session to make sure we hear the first
3534 * beacon on the new channel.
3535 */
3536 iwl_mvm_protect_session(mvm, vif, duration, duration,
3537 vif->bss_conf.beacon_int / 2,
3538 true);
3539
3540 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3541
7754ae79 3542 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3543 }
3544
b08c1d97 3545 goto out;
8ca151b5 3546
b08c1d97 3547out_remove_binding:
8ca151b5 3548 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3549 iwl_mvm_power_update_mac(mvm);
b08c1d97 3550out:
8ca151b5
JB		 3551 if (ret)
3552 mvmvif->phy_ctxt = NULL;
3553 return ret;
3554}
b08c1d97
LC		 3555static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3556 struct ieee80211_vif *vif,
3557 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3558{
3559 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3560 int ret;
8ca151b5
JB		 3561
3562 mutex_lock(&mvm->mutex);
f0c97783 3563 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3564 mutex_unlock(&mvm->mutex);
3565
3566 return ret;
3567}
3568
3569static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3570 struct ieee80211_vif *vif,
f0c97783
LC		 3571 struct ieee80211_chanctx_conf *ctx,
3572 bool switching_chanctx)
b08c1d97
LC		 3573{
3574 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3575 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3576
3577 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3578
3579 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3580
8ca151b5 3581 switch (vif->type) {
5023d966 3582 case NL80211_IFTYPE_ADHOC:
b08c1d97 3583 goto out;
8ca151b5 3584 case NL80211_IFTYPE_MONITOR:
1e1391ca 3585 mvmvif->monitor_active = false;
2533edce 3586 mvmvif->ps_disabled = false;
0e39eb03 3587 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3588 break;
bd3398e2
AO		 3589 case NL80211_IFTYPE_AP:
3590 /* This part is triggered only during CSA */
4741dd04 3591 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3592 goto out;
bd3398e2 3593
7ef0aab6
AO		 3594 mvmvif->csa_countdown = false;
3595
003e5236
AO		 3596 /* Set CS bit on all the stations */
3597 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3598
3599 /* Save blocked iface, the timeout is set on the next beacon */
3600 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3601
bd3398e2 3602 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3603 break;
3604 case NL80211_IFTYPE_STATION:
3605 if (!switching_chanctx)
3606 break;
3607
3608 disabled_vif = vif;
3609
3dfd3a97 3610 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3611 break;
8ca151b5
JB		 3612 default:
3613 break;
3614 }
3615
7754ae79 3616 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3617 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3618
b08c1d97 3619out:
a11e144e 3620 mvmvif->phy_ctxt = NULL;
999609f1 3621 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3622}
3623
3624static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3625 struct ieee80211_vif *vif,
3626 struct ieee80211_chanctx_conf *ctx)
3627{
3628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3629
3630 mutex_lock(&mvm->mutex);
f0c97783 3631 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3632 mutex_unlock(&mvm->mutex);
3633}
3634
50cc9574
LC		 3635static int
3636iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3637 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3638{
b08c1d97
LC		 3639 int ret;
3640
b08c1d97 3641 mutex_lock(&mvm->mutex);
f0c97783 3642 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3643 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3644
3645 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3646 if (ret) {
3647 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3648 goto out_reassign;
3649 }
3650
f0c97783
LC		 3651 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3652 true);
b08c1d97
LC		 3653 if (ret) {
3654 IWL_ERR(mvm,
3655 "failed to assign new_ctx during channel switch\n");
3656 goto out_remove;
3657 }
3658
f697267f
AN		 3659 /* we don't support TDLS during DCM - can be caused by channel switch */
3660 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3661 iwl_mvm_teardown_tdls_peers(mvm);
3662
b08c1d97
LC		 3663 goto out;
3664
3665out_remove:
3666 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3667
3668out_reassign:
6fd1fb63 3669 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3670 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3671 goto out_restart;
3672 }
3673
6fd1fb63
LC		 3674 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3675 true)) {
b08c1d97
LC		 3676 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3677 goto out_restart;
3678 }
3679
3680 goto out;
3681
3682out_restart:
3683 /* things keep failing, better restart the hw */
3684 iwl_mvm_nic_restart(mvm, false);
3685
3686out:
3687 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3688
3689 return ret;
3690}
3691
48a256e8
LC		 3692static int
3693iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3694 struct ieee80211_vif_chanctx_switch *vifs)
3695{
3696 int ret;
3697
3698 mutex_lock(&mvm->mutex);
3699 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3700
3701 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3702 true);
3703 if (ret) {
3704 IWL_ERR(mvm,
3705 "failed to assign new_ctx during channel switch\n");
3706 goto out_reassign;
3707 }
3708
3709 goto out;
3710
3711out_reassign:
3712 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3713 true)) {
3714 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3715 goto out_restart;
3716 }
3717
3718 goto out;
3719
3720out_restart:
3721 /* things keep failing, better restart the hw */
3722 iwl_mvm_nic_restart(mvm, false);
3723
3724out:
3725 mutex_unlock(&mvm->mutex);
3726
3727 return ret;
3728}
3729
50cc9574
LC		 3730static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3731 struct ieee80211_vif_chanctx_switch *vifs,
3732 int n_vifs,
3733 enum ieee80211_chanctx_switch_mode mode)
3734{
3735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3736 int ret;
3737
3738 /* we only support a single-vif right now */
3739 if (n_vifs > 1)
3740 return -EOPNOTSUPP;
3741
3742 switch (mode) {
3743 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3744 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3745 break;
3746 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3747 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3748 break;
3749 default:
3750 ret = -EOPNOTSUPP;
3751 break;
3752 }
3753
b08c1d97
LC		 3754 return ret;
3755}
3756
2f0282db
JB		 3757static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
3758{
3759 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3760
3761 return mvm->ibss_manager;
3762}
3763
8ca151b5
JB		 3764static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3765 struct ieee80211_sta *sta,
3766 bool set)
3767{
3768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3769 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3770
3771 if (!mvm_sta || !mvm_sta->vif) {
3772 IWL_ERR(mvm, "Station is not associated to a vif\n");
3773 return -EINVAL;
3774 }
3775
3776 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3777}
3778
507cadf2
DS		 3779#ifdef CONFIG_NL80211_TESTMODE
3780static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3781 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3782 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3783 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3784};
3785
3786static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3787 struct ieee80211_vif *vif,
3788 void *data, int len)
3789{
3790 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3791 int err;
3792 u32 noa_duration;
3793
fceb6435
JB		 3794 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy,
3795 NULL);
507cadf2
DS		 3796 if (err)
3797 return err;
3798
3799 if (!tb[IWL_MVM_TM_ATTR_CMD])
3800 return -EINVAL;
3801
3802 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3803 case IWL_MVM_TM_CMD_SET_NOA:
3804 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3805 !vif->bss_conf.enable_beacon ||
3806 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3807 return -EINVAL;
3808
3809 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3810 if (noa_duration >= vif->bss_conf.beacon_int)
3811 return -EINVAL;
3812
3813 mvm->noa_duration = noa_duration;
3814 mvm->noa_vif = vif;
3815
7754ae79 3816 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3817 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3818 /* must be associated client vif - ignore authorized */
3819 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3820 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3821 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3822 return -EINVAL;
3823
3824 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3825 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3826 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3827 }
3828
3829 return -EOPNOTSUPP;
3830}
3831
3832static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3833 struct ieee80211_vif *vif,
3834 void *data, int len)
3835{
3836 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3837 int err;
3838
3839 mutex_lock(&mvm->mutex);
3840 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3841 mutex_unlock(&mvm->mutex);
3842
3843 return err;
3844}
3845#endif
3846
622e3f9b
LC		 3847static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3848 struct ieee80211_vif *vif,
3849 struct ieee80211_channel_switch *chsw)
3850{
3851 /* By implementing this operation, we prevent mac80211 from
3852 * starting its own channel switch timer, so that we can call
3853 * ieee80211_chswitch_done() ourselves at the right time
3854 * (which is when the absence time event starts).
3855 */
3856
3857 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3858 "dummy channel switch op\n");
3859}
3860
f028905c
LC		 3861static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3862 struct ieee80211_vif *vif,
3863 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3864{
3865 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3866 struct ieee80211_vif *csa_vif;
f6c34820 3867 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3868 u32 apply_time;
f028905c 3869 int ret;
bd3398e2
AO		 3870
3871 mutex_lock(&mvm->mutex);
664322fa 3872
81d62d5a
JB		 3873 mvmvif->csa_failed = false;
3874
6b20d774 3875 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3876 chsw->chandef.center_freq1);
6b20d774 3877
7174beb6
JB		 3878 iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
3879 ieee80211_vif_to_wdev(vif),
3880 FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3881
6b20d774
LC		 3882 switch (vif->type) {
3883 case NL80211_IFTYPE_AP:
3884 csa_vif =
3885 rcu_dereference_protected(mvm->csa_vif,
3886 lockdep_is_held(&mvm->mutex));
3887 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3888 "Another CSA is already in progress")) {
3889 ret = -EBUSY;
3890 goto out_unlock;
3891 }
3892
d3a108a4
AO		 3893 /* we still didn't unblock tx. prevent new CS meanwhile */
3894 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3895 lockdep_is_held(&mvm->mutex))) {
3896 ret = -EBUSY;
3897 goto out_unlock;
3898 }
3899
6b20d774 3900 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3901
7ef0aab6
AO		 3902 if (WARN_ONCE(mvmvif->csa_countdown,
3903 "Previous CSA countdown didn't complete")) {
3904 ret = -EBUSY;
3905 goto out_unlock;
3906 }
3907
d3a108a4
AO		 3908 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3909
6b20d774 3910 break;
dc88b4ba 3911 case NL80211_IFTYPE_STATION:
4500e133
LC		 3912 /* Schedule the time event to a bit before beacon 1,
3913 * to make sure we're in the new channel when the
f5d8f50f
IP		 3914 * GO/AP arrives. In case count <= 1 immediately schedule the
3915 * TE (this might result with some packet loss or connection
3916 * loss).
4500e133 3917 */
f5d8f50f
IP		 3918 if (chsw->count <= 1)
3919 apply_time = 0;
3920 else
3921 apply_time = chsw->device_timestamp +
3922 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3923 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3924
3925 if (chsw->block_tx)
3926 iwl_mvm_csa_client_absent(mvm, vif);
3927
4500e133 3928 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3929 apply_time);
c6e0a3e0
LC		 3930 if (mvmvif->bf_data.bf_enabled) {
3931 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3932 if (ret)
3933 goto out_unlock;
3934 }
3935
dc88b4ba 3936 break;
6b20d774
LC		 3937 default:
3938 break;
3939 }
bd3398e2 3940
f6c34820
LC		 3941 mvmvif->ps_disabled = true;
3942
3943 ret = iwl_mvm_power_update_ps(mvm);
3944 if (ret)
3945 goto out_unlock;
f028905c 3946
e198f5e7
AN		 3947 /* we won't be on this channel any longer */
3948 iwl_mvm_teardown_tdls_peers(mvm);
3949
bd3398e2
AO		 3950out_unlock:
3951 mutex_unlock(&mvm->mutex);
f028905c
LC		 3952
3953 return ret;
bd3398e2
AO		 3954}
3955
f6c34820
LC		 3956static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3957 struct ieee80211_vif *vif)
3958{
3959 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3960 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3961 int ret;
3962
3963 mutex_lock(&mvm->mutex);
3964
81d62d5a
JB		 3965 if (mvmvif->csa_failed) {
3966 mvmvif->csa_failed = false;
3967 ret = -EIO;
3968 goto out_unlock;
3969 }
3970
a57c688d
LC		 3971 if (vif->type == NL80211_IFTYPE_STATION) {
3972 struct iwl_mvm_sta *mvmsta;
3973
3974 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3975 mvmvif->ap_sta_id);
3976
3977 if (WARN_ON(!mvmsta)) {
3978 ret = -EIO;
3979 goto out_unlock;
3980 }
3981
3982 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3983
3984 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3985
3986 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3987 if (ret)
3988 goto out_unlock;
686e7fe1
LC		 3989
3990 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3991 }
3992
f6c34820
LC		 3993 mvmvif->ps_disabled = false;
3994
3995 ret = iwl_mvm_power_update_ps(mvm);
3996
a57c688d 3997out_unlock:
f6c34820
LC		 3998 mutex_unlock(&mvm->mutex);
3999
4000 return ret;
4001}
4002
6110d9e5
DS		 4003static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4004{
435d0827
SS		 4005 int i;
4006
6110d9e5
DS		 4007 if (drop) {
4008 if (iwl_mvm_has_new_tx_api(mvm))
4009 /* TODO new tx api */
4010 WARN_ONCE(1,
4011 "Need to implement flush TX queue\n");
4012 else
4013 iwl_mvm_flush_tx_path(mvm,
435d0827
SS		 4014 iwl_mvm_flushable_queues(mvm) & queues, 0);
4015 return;
4016 }
6110d9e5 4017
435d0827
SS		 4018 if (!iwl_mvm_has_new_tx_api(mvm)) {
4019 iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
4020 return;
4021 }
6110d9e5 4022
435d0827
SS		 4023 mutex_lock(&mvm->mutex);
4024 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
4025 struct ieee80211_sta *sta;
6110d9e5 4026
435d0827
SS		 4027 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4028 lockdep_is_held(&mvm->mutex));
4029 if (IS_ERR_OR_NULL(sta))
4030 continue;
6110d9e5 4031
435d0827
SS		 4032 iwl_mvm_wait_sta_queues_empty(mvm,
4033 iwl_mvm_sta_from_mac80211(sta));
6110d9e5 4034 }
435d0827 4035 mutex_unlock(&mvm->mutex);
6110d9e5
DS		 4036}
4037
c5b0e7c0
EG		 4038static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4039 struct ieee80211_vif *vif, u32 queues, bool drop)
4040{
4041 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4042 struct iwl_mvm_vif *mvmvif;
4043 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 4044 struct ieee80211_sta *sta;
4045 int i;
4046 u32 msk = 0;
c5b0e7c0 4047
6110d9e5
DS		 4048 if (!vif) {
4049 iwl_mvm_flush_no_vif(mvm, queues, drop);
4050 return;
4051 }
4052
4053 if (vif->type != NL80211_IFTYPE_STATION)
c5b0e7c0
EG		 4054 return;
4055
24afba76 4056 /* Make sure we're done with the deferred traffic before flushing */
c8f54701 4057 flush_work(&mvm->add_stream_wk);
24afba76 4058
c5b0e7c0
EG		 4059 mutex_lock(&mvm->mutex);
4060 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 4061
a0f6bf2a 4062 /* flush the AP-station and all TDLS peers */
0ae98812 4063 for (i = 0; i < ARRAY_SIZE(mvm->fw_id_to_mac_id); i++) {
a0f6bf2a
AN		 4064 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4065 lockdep_is_held(&mvm->mutex));
4066 if (IS_ERR_OR_NULL(sta))
4067 continue;
4068
4069 mvmsta = iwl_mvm_sta_from_mac80211(sta);
4070 if (mvmsta->vif != vif)
4071 continue;
4072
4073 /* make sure only TDLS peers or the AP are flushed */
4074 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4075
d49394a1
SS		 4076 if (drop) {
4077 if (iwl_mvm_flush_sta(mvm, mvmsta, false, 0))
4078 IWL_ERR(mvm, "flush request fail\n");
4079 } else {
4080 msk |= mvmsta->tfd_queue_msk;
d6d517b7
SS		 4081 if (iwl_mvm_has_new_tx_api(mvm))
4082 iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
d49394a1 4083 }
480acbce 4084 }
c5b0e7c0 4085
d49394a1 4086 mutex_unlock(&mvm->mutex);
4e6c48e0 4087
d49394a1
SS		 4088 /* this can take a while, and we may need/want other operations
4089 * to succeed while doing this, so do it without the mutex held
4090 */
d6d517b7 4091 if (!drop && !iwl_mvm_has_new_tx_api(mvm))
a1a57877 4092 iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
c5b0e7c0
EG		 4093}
4094
91a8bcde
JB		 4095static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4096 struct survey_info *survey)
4097{
4098 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4099 int ret;
4100
4101 memset(survey, 0, sizeof(*survey));
4102
4103 /* only support global statistics right now */
4104 if (idx != 0)
4105 return -ENOENT;
4106
280a3efa
JB		 4107 if (!fw_has_capa(&mvm->fw->ucode_capa,
4108 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 4109 return -ENOENT;
4110
4111 mutex_lock(&mvm->mutex);
4112
aab6930d 4113 if (iwl_mvm_firmware_running(mvm)) {
33cef925 4114 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4115 if (ret)
4116 goto out;
4117 }
4118
4119 survey->filled = SURVEY_INFO_TIME |
4120 SURVEY_INFO_TIME_RX |
4121 SURVEY_INFO_TIME_TX |
4122 SURVEY_INFO_TIME_SCAN;
4123 survey->time = mvm->accu_radio_stats.on_time_rf +
4124 mvm->radio_stats.on_time_rf;
4125 do_div(survey->time, USEC_PER_MSEC);
4126
4127 survey->time_rx = mvm->accu_radio_stats.rx_time +
4128 mvm->radio_stats.rx_time;
4129 do_div(survey->time_rx, USEC_PER_MSEC);
4130
4131 survey->time_tx = mvm->accu_radio_stats.tx_time +
4132 mvm->radio_stats.tx_time;
4133 do_div(survey->time_tx, USEC_PER_MSEC);
4134
4135 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4136 mvm->radio_stats.on_time_scan;
4137 do_div(survey->time_scan, USEC_PER_MSEC);
4138
10a7c028 4139 ret = 0;
91a8bcde
JB		 4140 out:
4141 mutex_unlock(&mvm->mutex);
4142 return ret;
4143}
4144
33cef925
JB		 4145static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4146 struct ieee80211_vif *vif,
4147 struct ieee80211_sta *sta,
4148 struct station_info *sinfo)
4149{
4150 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4151 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4152 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4153
988b5968
SS		 4154 if (mvmsta->avg_energy) {
4155 sinfo->signal_avg = mvmsta->avg_energy;
4156 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
4157 }
4158
280a3efa
JB		 4159 if (!fw_has_capa(&mvm->fw->ucode_capa,
4160 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4161 return;
4162
4163 /* if beacon filtering isn't on mac80211 does it anyway */
4164 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4165 return;
4166
4167 if (!vif->bss_conf.assoc)
4168 return;
4169
4170 mutex_lock(&mvm->mutex);
4171
4172 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4173 goto unlock;
4174
4175 if (iwl_mvm_request_statistics(mvm, false))
4176 goto unlock;
4177
4178 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4179 mvmvif->beacon_stats.accu_num_beacons;
4180 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4181 if (mvmvif->beacon_stats.avg_signal) {
4182 /* firmware only reports a value after RXing a few beacons */
4183 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4184 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4185 }
4186 unlock:
4187 mutex_unlock(&mvm->mutex);
4188}
4189
4203263d
EG		 4190static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4191 struct ieee80211_vif *vif,
4192 const struct ieee80211_event *event)
d42f5350 4193{
7174beb6
JB		 4194#define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4195 do { \
4196 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4197 break; \
4198 iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt); \
d42f5350
EG		 4199 } while (0)
4200
d42f5350
EG		 4201 struct iwl_fw_dbg_trigger_tlv *trig;
4202 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4203
4204 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4205 return;
4206
d42f5350
EG		 4207 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4208 trig_mlme = (void *)trig->data;
7174beb6
JB		 4209 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4210 ieee80211_vif_to_wdev(vif), trig))
d42f5350
EG		 4211 return;
4212
d42f5350
EG		 4213 if (event->u.mlme.data == ASSOC_EVENT) {
4214 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4215 CHECK_MLME_TRIGGER(stop_assoc_denied,
d42f5350
EG		 4216 "DENIED ASSOC: reason %d",
4217 event->u.mlme.reason);
4218 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4219 CHECK_MLME_TRIGGER(stop_assoc_timeout,
d42f5350
EG		 4220 "ASSOC TIMEOUT");
4221 } else if (event->u.mlme.data == AUTH_EVENT) {
4222 if (event->u.mlme.status == MLME_DENIED)
4c324a51 4223 CHECK_MLME_TRIGGER(stop_auth_denied,
d42f5350
EG		 4224 "DENIED AUTH: reason %d",
4225 event->u.mlme.reason);
4226 else if (event->u.mlme.status == MLME_TIMEOUT)
4c324a51 4227 CHECK_MLME_TRIGGER(stop_auth_timeout,
d42f5350
EG		 4228 "AUTH TIMEOUT");
4229 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4c324a51 4230 CHECK_MLME_TRIGGER(stop_rx_deauth,
d42f5350
EG		 4231 "DEAUTH RX %d", event->u.mlme.reason);
4232 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4c324a51 4233 CHECK_MLME_TRIGGER(stop_tx_deauth,
d42f5350
EG		 4234 "DEAUTH TX %d", event->u.mlme.reason);
4235 }
4236#undef CHECK_MLME_TRIGGER
4237}
4238
4203263d
EG		 4239static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4240 struct ieee80211_vif *vif,
4241 const struct ieee80211_event *event)
4242{
4243 struct iwl_fw_dbg_trigger_tlv *trig;
4244 struct iwl_fw_dbg_trigger_ba *ba_trig;
4245
4246 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4247 return;
4248
4249 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4250 ba_trig = (void *)trig->data;
7174beb6
JB		 4251 if (!iwl_fw_dbg_trigger_check_stop(&mvm->fwrt,
4252 ieee80211_vif_to_wdev(vif), trig))
4203263d
EG		 4253 return;
4254
4255 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4256 return;
4257
7174beb6
JB		 4258 iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
4259 "BAR received from %pM, tid %d, ssn %d",
4260 event->u.ba.sta->addr, event->u.ba.tid,
4261 event->u.ba.ssn);
4203263d
EG		 4262}
4263
4203263d
EG		 4264static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4265 struct ieee80211_vif *vif,
4266 const struct ieee80211_event *event)
4267{
4268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4269
4270 switch (event->type) {
4271 case MLME_EVENT:
4272 iwl_mvm_event_mlme_callback(mvm, vif, event);
4273 break;
4274 case BAR_RX_EVENT:
4275 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4276 break;
4277 case BA_FRAME_TIMEOUT:
528a542a
EG		 4278 iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
4279 event->u.ba.tid);
4203263d
EG		 4280 break;
4281 default:
4282 break;
4283 }
4284}
4285
d0ff5d22
SS		 4286void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4287 struct iwl_mvm_internal_rxq_notif *notif,
4288 u32 size)
0636b938 4289{
0636b938
SS		 4290 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4291 int ret;
4292
4293 lockdep_assert_held(&mvm->mutex);
4294
cb8550e1 4295 if (!iwl_mvm_has_new_rx_api(mvm))
0636b938
SS		 4296 return;
4297
d0ff5d22
SS		 4298 notif->cookie = mvm->queue_sync_cookie;
4299
4300 if (notif->sync)
4301 atomic_set(&mvm->queue_sync_counter,
4302 mvm->trans->num_rx_queues);
0636b938 4303
cb8550e1
SS		 4304 /* TODO - remove this when we have RXQ config API */
4305 if (mvm->trans->cfg->device_family == IWL_DEVICE_FAMILY_A000) {
4306 qmask = BIT(0);
4307 if (notif->sync)
4308 atomic_set(&mvm->queue_sync_counter, 1);
4309 }
4310
d0ff5d22 4311 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4312 if (ret) {
4313 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4314 goto out;
4315 }
d0ff5d22 4316
6ad04359 4317 if (notif->sync) {
3a732c65 4318 ret = wait_event_timeout(mvm->rx_sync_waitq,
6ad04359
JB		 4319 atomic_read(&mvm->queue_sync_counter) == 0 ||
4320 iwl_mvm_is_radio_killed(mvm),
d0ff5d22 4321 HZ);
6ad04359
JB		 4322 WARN_ON_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm));
4323 }
0636b938
SS		 4324
4325out:
4326 atomic_set(&mvm->queue_sync_counter, 0);
4327 mvm->queue_sync_cookie++;
4328}
4329
4330static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4331{
4332 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4333 struct iwl_mvm_internal_rxq_notif data = {
4334 .type = IWL_MVM_RXQ_EMPTY,
4335 .sync = 1,
4336 };
0636b938
SS		 4337
4338 mutex_lock(&mvm->mutex);
d0ff5d22 4339 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4340 mutex_unlock(&mvm->mutex);
4341}
4342
e5209263 4343const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4344 .tx = iwl_mvm_mac_tx,
4345 .ampdu_action = iwl_mvm_mac_ampdu_action,
4346 .start = iwl_mvm_mac_start,
cf2c92d8 4347 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4348 .stop = iwl_mvm_mac_stop,
4349 .add_interface = iwl_mvm_mac_add_interface,
4350 .remove_interface = iwl_mvm_mac_remove_interface,
4351 .config = iwl_mvm_mac_config,
e59647ea 4352 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4353 .configure_filter = iwl_mvm_configure_filter,
effd1929 4354 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4355 .bss_info_changed = iwl_mvm_bss_info_changed,
4356 .hw_scan = iwl_mvm_mac_hw_scan,
4357 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4358 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4359 .sta_state = iwl_mvm_mac_sta_state,
4360 .sta_notify = iwl_mvm_mac_sta_notify,
4361 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4362 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4363 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4364 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4365 .conf_tx = iwl_mvm_mac_conf_tx,
4366 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4367 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4368 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4369 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4370 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4371 .set_key = iwl_mvm_mac_set_key,
4372 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4373 .remain_on_channel = iwl_mvm_roc,
4374 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4375 .add_chanctx = iwl_mvm_add_chanctx,
4376 .remove_chanctx = iwl_mvm_remove_chanctx,
4377 .change_chanctx = iwl_mvm_change_chanctx,
4378 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4379 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4380 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4381
5023d966
JB		 4382 .start_ap = iwl_mvm_start_ap_ibss,
4383 .stop_ap = iwl_mvm_stop_ap_ibss,
4384 .join_ibss = iwl_mvm_start_ap_ibss,
4385 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5 4386
2f0282db
JB		 4387 .tx_last_beacon = iwl_mvm_tx_last_beacon,
4388
8ca151b5
JB		 4389 .set_tim = iwl_mvm_set_tim,
4390
622e3f9b 4391 .channel_switch = iwl_mvm_channel_switch,
f028905c 4392 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4393 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4394
1d3c3f63
AN		 4395 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4396 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4397 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4398
d42f5350
EG		 4399 .event_callback = iwl_mvm_mac_event_callback,
4400
0636b938
SS		 4401 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4402
507cadf2
DS		 4403 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4404
8ca151b5
JB		 4405#ifdef CONFIG_PM_SLEEP
4406 /* look at d3.c */
4407 .suspend = iwl_mvm_suspend,
4408 .resume = iwl_mvm_resume,
4409 .set_wakeup = iwl_mvm_set_wakeup,
4410 .set_rekey_data = iwl_mvm_set_rekey_data,
4411#if IS_ENABLED(CONFIG_IPV6)
4412 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4413#endif
4414 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4415#endif
91a8bcde 4416 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4417 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4418};
A mirror of Linus' kernel repository