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iwlwifi: mvm: fix dqa deferred frames marking
[thirdparty/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
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8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
f92659a1 10 * Copyright(c) 2016 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.
8b4139dc 36 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 37 * All rights reserved.
38 *
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
41 * are met:
42 *
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
48 * distribution.
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
52 *
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *
65 *****************************************************************************/
66#include <linux/kernel.h>
67#include <linux/slab.h>
68#include <linux/skbuff.h>
69#include <linux/netdevice.h>
70#include <linux/etherdevice.h>
f0c2646a 71#include <linux/ip.h>
2ee8f021 72#include <linux/if_arp.h>
2f89a5d7 73#include <linux/time.h>
8ca151b5 74#include <net/mac80211.h>
7b1dd048 75#include <net/ieee80211_radiotap.h>
f0c2646a 76#include <net/tcp.h>
8ca151b5
JB		 77
78#include "iwl-op-mode.h"
79#include "iwl-io.h"
80#include "mvm.h"
81#include "sta.h"
82#include "time-event.h"
83#include "iwl-eeprom-parse.h"
8ca151b5 84#include "iwl-phy-db.h"
507cadf2 85#include "testmode.h"
655e6d6d
EG		 86#include "iwl-fw-error-dump.h"
87#include "iwl-prph.h"
88931cc9 88#include "iwl-nvm-parse.h"
2f89a5d7 89#include "fw-dbg.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);
8ca151b5 448
80938abc
JB		 449 if (mvm->trans->num_rx_queues > 1)
450 ieee80211_hw_set(hw, USES_RSS);
451
2d7cf549
JB		 452 if (mvm->trans->max_skb_frags)
453 hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
454
cf961e16
LK		 455 if (!iwl_mvm_is_dqa_supported(mvm))
456 hw->queues = mvm->first_agg_queue;
457 else
458 hw->queues = IEEE80211_MAX_QUEUES;
398e8c6c 459 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 460 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
461 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 462 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
463 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 464 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 465 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
466 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 467
8e160ab8 468 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
5f4c02e2
JB		 469 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
470 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
471 hw->wiphy->cipher_suites = mvm->ciphers;
472
2a53d166
AB		 473 if (iwl_mvm_has_new_rx_api(mvm)) {
474 mvm->ciphers[hw->wiphy->n_cipher_suites] =
475 WLAN_CIPHER_SUITE_GCMP;
476 hw->wiphy->n_cipher_suites++;
477 mvm->ciphers[hw->wiphy->n_cipher_suites] =
478 WLAN_CIPHER_SUITE_GCMP_256;
479 hw->wiphy->n_cipher_suites++;
480 }
481
4b87e5af
LC		 482 /* Enable 11w if software crypto is not enabled (as the
483 * firmware will interpret some mgmt packets, so enabling it
484 * with software crypto isn't safe).
8ca151b5 485 */
4b87e5af 486 if (!iwlwifi_mod_params.sw_crypto) {
30686bf7 487 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 488 mvm->ciphers[hw->wiphy->n_cipher_suites] =
489 WLAN_CIPHER_SUITE_AES_CMAC;
490 hw->wiphy->n_cipher_suites++;
8e160ab8
AB		 491 if (iwl_mvm_has_new_rx_api(mvm)) {
492 mvm->ciphers[hw->wiphy->n_cipher_suites] =
493 WLAN_CIPHER_SUITE_BIP_GMAC_128;
494 hw->wiphy->n_cipher_suites++;
495 mvm->ciphers[hw->wiphy->n_cipher_suites] =
496 WLAN_CIPHER_SUITE_BIP_GMAC_256;
497 hw->wiphy->n_cipher_suites++;
498 }
5f4c02e2
JB		 499 }
500
501 /* currently FW API supports only one optional cipher scheme */
502 if (mvm->fw->cs[0].cipher) {
24ddddf3
JB		 503 const struct iwl_fw_cipher_scheme *fwcs = &mvm->fw->cs[0];
504 struct ieee80211_cipher_scheme *cs = &mvm->cs[0];
505
5f4c02e2 506 mvm->hw->n_cipher_schemes = 1;
24ddddf3
JB		 507
508 cs->cipher = le32_to_cpu(fwcs->cipher);
509 cs->iftype = BIT(NL80211_IFTYPE_STATION);
510 cs->hdr_len = fwcs->hdr_len;
511 cs->pn_len = fwcs->pn_len;
512 cs->pn_off = fwcs->pn_off;
513 cs->key_idx_off = fwcs->key_idx_off;
514 cs->key_idx_mask = fwcs->key_idx_mask;
515 cs->key_idx_shift = fwcs->key_idx_shift;
516 cs->mic_len = fwcs->mic_len;
517
518 mvm->hw->cipher_schemes = mvm->cs;
519 mvm->ciphers[hw->wiphy->n_cipher_suites] = cs->cipher;
5f4c02e2
JB		 520 hw->wiphy->n_cipher_suites++;
521 }
8ca151b5 522
30686bf7 523 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 524 hw->wiphy->features |=
525 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 526 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
527 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 528
8ca151b5
JB		 529 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
530 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 531 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 532
533 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 534 BIT(NL80211_IFTYPE_P2P_CLIENT) |
535 BIT(NL80211_IFTYPE_AP) |
536 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 537 BIT(NL80211_IFTYPE_P2P_DEVICE) |
538 BIT(NL80211_IFTYPE_ADHOC);
5023d966 539
a2f73b6c 540 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 541 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
542 if (iwl_mvm_is_lar_supported(mvm))
543 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
544 else
545 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
546 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 547
4b87e5af 548 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
94bbed72 549 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 550
8ca151b5
JB		 551 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
552 hw->wiphy->n_iface_combinations =
553 ARRAY_SIZE(iwl_mvm_iface_combinations);
554
c451e6d4 555 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 556 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 557 /* we can compensate an offset of up to 3 channels = 15 MHz */
558 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 559
560 /* Extract MAC address */
561 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
562 hw->wiphy->addresses = mvm->addresses;
563 hw->wiphy->n_addresses = 1;
831e85f3
IP		 564
565 /* Extract additional MAC addresses if available */
566 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
567 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
568
569 for (i = 1; i < num_mac; i++) {
570 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 571 ETH_ALEN);
831e85f3 572 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 573 hw->wiphy->n_addresses++;
574 }
575
fe0f2de3
IP		 576 iwl_mvm_reset_phy_ctxts(mvm);
577
999d2568 578 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 579
8ca151b5
JB		 580 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
581
c7d42480 582 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 583 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
584 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
585
859d914c 586 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 587 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
588 else
589 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
590
57fbcce3
JB		 591 if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
592 hw->wiphy->bands[NL80211_BAND_2GHZ] =
593 &mvm->nvm_data->bands[NL80211_BAND_2GHZ];
594 if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
595 hw->wiphy->bands[NL80211_BAND_5GHZ] =
596 &mvm->nvm_data->bands[NL80211_BAND_5GHZ];
8ca151b5 597
859d914c
JB		 598 if (fw_has_capa(&mvm->fw->ucode_capa,
599 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
600 fw_has_api(&mvm->fw->ucode_capa,
601 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
57fbcce3 602 hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
3d44eebf
ES		 603 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
604 }
605
8ca151b5
JB		 606 hw->wiphy->hw_version = mvm->trans->hw_id;
607
ade50652 608 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 609 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
610 else
611 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
612
9954b37c
EG		 613 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
614 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
615 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
616 /* we create the 802.11 header and zero length SSID IE. */
617 hw->wiphy->max_sched_scan_ie_len =
618 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
cd55ccea
AS		 619 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
620 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
621
622 /*
623 * the firmware uses u8 for num of iterations, but 0xff is saved for
624 * infinite loop, so the maximum number of iterations is actually 254.
625 */
626 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 627
8ca151b5 628 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 629 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4 630 NL80211_FEATURE_P2P_GO_OPPPS |
a904a08b 631 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
0d8614b4 632 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 633 NL80211_FEATURE_STATIC_SMPS |
634 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 635
859d914c
JB		 636 if (fw_has_capa(&mvm->fw->ucode_capa,
637 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 638 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 639 if (fw_has_capa(&mvm->fw->ucode_capa,
640 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 641 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 642
859d914c
JB		 643 if (fw_has_capa(&mvm->fw->ucode_capa,
644 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 645 hw->wiphy->features |=
646 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
647
859d914c
JB		 648 if (fw_has_capa(&mvm->fw->ucode_capa,
649 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 650 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
651
aacf8f18
AS		 652 if (fw_has_api(&mvm->fw->ucode_capa,
653 IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
654 wiphy_ext_feature_set(hw->wiphy,
655 NL80211_EXT_FEATURE_SCAN_START_TIME);
656 wiphy_ext_feature_set(hw->wiphy,
657 NL80211_EXT_FEATURE_BSS_PARENT_TSF);
658 wiphy_ext_feature_set(hw->wiphy,
659 NL80211_EXT_FEATURE_SET_SCAN_DWELL);
660 }
661
8ca151b5
JB		 662 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
663
664#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 665 if (iwl_mvm_is_d0i3_supported(mvm) &&
666 device_can_wakeup(mvm->trans->dev)) {
667 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
668 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 669 }
670
671 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 672 mvm->trans->ops->d3_suspend &&
673 mvm->trans->ops->d3_resume &&
674 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 675 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
676 WIPHY_WOWLAN_DISCONNECT |
677 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
678 WIPHY_WOWLAN_RFKILL_RELEASE |
679 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 680 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 681 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
682 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
683 WIPHY_WOWLAN_4WAY_HANDSHAKE;
684
685 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
686 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
687 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 688 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 689 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
690 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 691 }
692#endif
693
77736923
EP		 694#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
695 /* assign default bcast filtering configuration */
696 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
697#endif
698
8ca151b5
JB		 699 ret = iwl_mvm_leds_init(mvm);
700 if (ret)
701 return ret;
702
859d914c
JB		 703 if (fw_has_capa(&mvm->fw->ucode_capa,
704 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 705 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
706 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 707 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 708 }
709
859d914c
JB		 710 if (fw_has_capa(&mvm->fw->ucode_capa,
711 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 712 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
713 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
714 }
715
93190fb0 716 hw->netdev_features |= mvm->cfg->features;
5e6a98dc
SS		 717 if (!iwl_mvm_is_csum_supported(mvm)) {
718 hw->netdev_features &= ~(IWL_TX_CSUM_NETIF_FLAGS |
719 NETIF_F_RXCSUM);
720 /* We may support SW TX CSUM */
721 if (IWL_MVM_SW_TX_CSUM_OFFLOAD)
722 hw->netdev_features |= IWL_TX_CSUM_NETIF_FLAGS;
723 }
41837ca9 724
b7327d89
EG		 725 ret = ieee80211_register_hw(mvm->hw);
726 if (ret)
727 iwl_mvm_leds_exit(mvm);
728
91b08c2d
AE		 729 if (mvm->cfg->vht_mu_mimo_supported)
730 wiphy_ext_feature_set(hw->wiphy,
731 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
732
b7327d89 733 return ret;
8ca151b5
JB		 734}
735
b2492501
AN		 736static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
737 struct ieee80211_sta *sta,
738 struct sk_buff *skb)
739{
740 struct iwl_mvm_sta *mvmsta;
741 bool defer = false;
742
743 /*
744 * double check the IN_D0I3 flag both before and after
745 * taking the spinlock, in order to prevent taking
746 * the spinlock when not needed.
747 */
748 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
749 return false;
750
751 spin_lock(&mvm->d0i3_tx_lock);
752 /*
753 * testing the flag again ensures the skb dequeue
754 * loop (on d0i3 exit) hasn't run yet.
755 */
756 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
757 goto out;
758
759 mvmsta = iwl_mvm_sta_from_mac80211(sta);
760 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
761 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
762 goto out;
763
764 __skb_queue_tail(&mvm->d0i3_tx, skb);
765 ieee80211_stop_queues(mvm->hw);
766
767 /* trigger wakeup */
768 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
769 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
770
771 defer = true;
772out:
773 spin_unlock(&mvm->d0i3_tx_lock);
774 return defer;
775}
776
8ca151b5
JB		 777static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
778 struct ieee80211_tx_control *control,
779 struct sk_buff *skb)
780{
781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 782 struct ieee80211_sta *sta = control->sta;
783 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
784 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 785
9ee718aa
EL		 786 if (iwl_mvm_is_radio_killed(mvm)) {
787 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 788 goto drop;
789 }
790
398e8c6c 791 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 792 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
793 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 794 goto drop;
795
3e56eadf
JB		 796 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
797 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
798 ieee80211_is_mgmt(hdr->frame_control) &&
799 !ieee80211_is_deauth(hdr->frame_control) &&
800 !ieee80211_is_disassoc(hdr->frame_control) &&
801 !ieee80211_is_action(hdr->frame_control)))
802 sta = NULL;
803
804 if (sta) {
b2492501
AN		 805 if (iwl_mvm_defer_tx(mvm, sta, skb))
806 return;
3e56eadf 807 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 808 goto drop;
809 return;
810 }
811
812 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
813 goto drop;
814 return;
815 drop:
816 ieee80211_free_txskb(hw, skb);
817}
818
205e2210
EG		 819static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
820{
821 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
822 return false;
823 return true;
824}
825
826static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
827{
828 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
829 return false;
830 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
831 return true;
832
833 /* enabled by default */
834 return true;
835}
836
4203263d
EG		 837#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
838 do { \
839 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
840 break; \
841 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
842 } while (0)
843
844static void
845iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
846 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
847 enum ieee80211_ampdu_mlme_action action)
848{
849 struct iwl_fw_dbg_trigger_tlv *trig;
850 struct iwl_fw_dbg_trigger_ba *ba_trig;
851
852 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
853 return;
854
855 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
856 ba_trig = (void *)trig->data;
857
858 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
859 return;
860
861 switch (action) {
862 case IEEE80211_AMPDU_TX_OPERATIONAL: {
863 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
864 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
865
866 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
867 "TX AGG START: MAC %pM tid %d ssn %d\n",
868 sta->addr, tid, tid_data->ssn);
869 break;
870 }
871 case IEEE80211_AMPDU_TX_STOP_CONT:
872 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
873 "TX AGG STOP: MAC %pM tid %d\n",
874 sta->addr, tid);
875 break;
876 case IEEE80211_AMPDU_RX_START:
877 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
878 "RX AGG START: MAC %pM tid %d ssn %d\n",
879 sta->addr, tid, rx_ba_ssn);
880 break;
881 case IEEE80211_AMPDU_RX_STOP:
882 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
883 "RX AGG STOP: MAC %pM tid %d\n",
884 sta->addr, tid);
885 break;
886 default:
887 break;
888 }
889}
890
8ca151b5
JB		 891static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
892 struct ieee80211_vif *vif,
50ea05ef 893 struct ieee80211_ampdu_params *params)
8ca151b5
JB		 894{
895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
896 int ret;
b2492501 897 bool tx_agg_ref = false;
50ea05ef
SS		 898 struct ieee80211_sta *sta = params->sta;
899 enum ieee80211_ampdu_mlme_action action = params->action;
900 u16 tid = params->tid;
901 u16 *ssn = &params->ssn;
902 u8 buf_size = params->buf_size;
bb81bb68 903 bool amsdu = params->amsdu;
10b2b201 904 u16 timeout = params->timeout;
8ca151b5
JB		 905
906 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
907 sta->addr, tid, action);
908
909 if (!(mvm->nvm_data->sku_cap_11n_enable))
910 return -EACCES;
911
b2492501 912 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 913 switch (action) {
914 case IEEE80211_AMPDU_TX_START:
915 case IEEE80211_AMPDU_TX_STOP_CONT:
916 case IEEE80211_AMPDU_TX_STOP_FLUSH:
917 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
918 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 919 /*
9256c205
EP		 920 * for tx start, wait synchronously until D0i3 exit to
921 * get the correct sequence number for the tid.
922 * additionally, some other ampdu actions use direct
923 * target access, which is not handled automatically
924 * by the trans layer (unlike commands), so wait for
925 * d0i3 exit in these cases as well.
b2492501 926 */
d40fc489
GG		 927 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
928 if (ret)
929 return ret;
930
931 tx_agg_ref = true;
9256c205
EP		 932 break;
933 default:
934 break;
b2492501
AN		 935 }
936
8ca151b5
JB		 937 mutex_lock(&mvm->mutex);
938
939 switch (action) {
940 case IEEE80211_AMPDU_RX_START:
205e2210 941 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 942 ret = -EINVAL;
943 break;
944 }
10b2b201
SS		 945 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
946 timeout);
8ca151b5
JB		 947 break;
948 case IEEE80211_AMPDU_RX_STOP:
10b2b201
SS		 949 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
950 timeout);
8ca151b5
JB		 951 break;
952 case IEEE80211_AMPDU_TX_START:
205e2210 953 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 954 ret = -EINVAL;
955 break;
956 }
8ca151b5
JB		 957 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
958 break;
959 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 960 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
961 break;
8ca151b5
JB		 962 case IEEE80211_AMPDU_TX_STOP_FLUSH:
963 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 964 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 965 break;
966 case IEEE80211_AMPDU_TX_OPERATIONAL:
bb81bb68
EG		 967 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
968 buf_size, amsdu);
8ca151b5
JB		 969 break;
970 default:
971 WARN_ON_ONCE(1);
972 ret = -EINVAL;
973 break;
974 }
4203263d
EG		 975
976 if (!ret) {
977 u16 rx_ba_ssn = 0;
978
979 if (action == IEEE80211_AMPDU_RX_START)
980 rx_ba_ssn = *ssn;
981
982 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
983 rx_ba_ssn, action);
984 }
8ca151b5
JB		 985 mutex_unlock(&mvm->mutex);
986
b2492501
AN		 987 /*
988 * If the tid is marked as started, we won't use it for offloaded
989 * traffic on the next D0i3 entry. It's safe to unref.
990 */
991 if (tx_agg_ref)
992 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
993
8ca151b5
JB		 994 return ret;
995}
996
997static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
998 struct ieee80211_vif *vif)
999{
1000 struct iwl_mvm *mvm = data;
1001 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1002
1003 mvmvif->uploaded = false;
1004 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1005
8ca151b5
JB		 1006 spin_lock_bh(&mvm->time_event_lock);
1007 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
1008 spin_unlock_bh(&mvm->time_event_lock);
1009
fe0f2de3 1010 mvmvif->phy_ctxt = NULL;
8a275bad 1011 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 1012}
1013
1014static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1015{
58629d9d
JB		 1016 /* clear the D3 reconfig, we only need it to avoid dumping a
1017 * firmware coredump on reconfiguration, we shouldn't do that
1018 * on D3->D0 transition
1019 */
b6eaa45a
EG		 1020 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1021 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1022 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1023 }
1bd3cbc1 1024
744cb695
EP		 1025 /* cleanup all stale references (scan, roc), but keep the
1026 * ucode_down ref until reconfig is complete
1027 */
1028 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1029
fcb6b92a 1030 iwl_mvm_stop_device(mvm);
8ca151b5 1031
9af91f46 1032 mvm->scan_status = 0;
b1873300 1033 mvm->ps_disabled = false;
31b8b343 1034 mvm->calibrating = false;
8ca151b5
JB		 1035
1036 /* just in case one was running */
305d236e 1037 iwl_mvm_cleanup_roc_te(mvm);
8ca151b5
JB		 1038 ieee80211_remain_on_channel_expired(mvm->hw);
1039
737719fe
AN		 1040 /*
1041 * cleanup all interfaces, even inactive ones, as some might have
1042 * gone down during the HW restart
1043 */
1044 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1045
fe0f2de3 1046 mvm->p2p_device_vif = NULL;
37577fe2 1047 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1048
1049 iwl_mvm_reset_phy_ctxts(mvm);
9c3deeb5 1050 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
8ca151b5 1051 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
24afba76 1052 memset(mvm->sta_deferred_frames, 0, sizeof(mvm->sta_deferred_frames));
a0f6bf2a 1053 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad 1054 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
8a275bad 1055 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
8ca151b5
JB		 1056
1057 ieee80211_wake_queues(mvm->hw);
1058
228670b2
EP		 1059 /* clear any stale d0i3 state */
1060 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1061
8ca151b5 1062 mvm->vif_count = 0;
113a0447 1063 mvm->rx_ba_sessions = 0;
d2709ad7 1064 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1065
1066 /* keep statistics ticking */
1067 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1068}
1069
a0a09243 1070int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1071{
8ca151b5
JB		 1072 int ret;
1073
a0a09243 1074 lockdep_assert_held(&mvm->mutex);
8ca151b5 1075
a42b2af3
LC		 1076 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1077 /* Clean up some internal and mac80211 state on restart */
8ca151b5 1078 iwl_mvm_restart_cleanup(mvm);
a42b2af3
LC		 1079 } else {
1080 /* Hold the reference to prevent runtime suspend while
1081 * the start procedure runs. It's a bit confusing
1082 * that the UCODE_DOWN reference is taken, but it just
1083 * means "UCODE is not UP yet". ( TODO: rename this
1084 * reference).
1085 */
1086 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1087 }
8ca151b5 1088 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1089
1090 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1091 /* Something went wrong - we need to finish some cleanup
1092 * that normally iwl_mvm_mac_restart_complete() below
1093 * would do.
1094 */
1095 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1096 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1097 }
1098
a0a09243
LC		 1099 return ret;
1100}
1101
1102static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1103{
1104 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1105 int ret;
1106
37948fcf
EP		 1107 /* Some hw restart cleanups must not hold the mutex */
1108 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1109 /*
1110 * Make sure we are out of d0i3. This is needed
1111 * to make sure the reference accounting is correct
1112 * (and there is no stale d0i3_exit_work).
1113 */
1114 wait_event_timeout(mvm->d0i3_exit_waitq,
1115 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1116 &mvm->status),
1117 HZ);
1118 }
1119
a0a09243
LC		 1120 mutex_lock(&mvm->mutex);
1121 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1122 mutex_unlock(&mvm->mutex);
1123
1124 return ret;
1125}
1126
cf2c92d8 1127static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1128{
8ca151b5
JB		 1129 int ret;
1130
1131 mutex_lock(&mvm->mutex);
1132
1133 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1134 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1135 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1136 if (ret)
1137 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1138 ret);
1139
7498cf4c
EP		 1140 /* allow transport/FW low power modes */
1141 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1142
cbd2ae2d
AN		 1143 /*
1144 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1145 * of packets the FW sent out, so we must reconnect.
1146 */
1147 iwl_mvm_teardown_tdls_peers(mvm);
1148
8ca151b5
JB		 1149 mutex_unlock(&mvm->mutex);
1150}
1151
088070a2
EP		 1152static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1153{
b7282643
LC		 1154 if (iwl_mvm_is_d0i3_supported(mvm) &&
1155 iwl_mvm_enter_d0i3_on_suspend(mvm))
1156 WARN_ONCE(!wait_event_timeout(mvm->d0i3_exit_waitq,
1157 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1158 &mvm->status),
1159 HZ),
1160 "D0i3 exit on resume timed out\n");
088070a2
EP		 1161}
1162
cf2c92d8
EP		 1163static void
1164iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1165 enum ieee80211_reconfig_type reconfig_type)
1166{
1167 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1168
1169 switch (reconfig_type) {
1170 case IEEE80211_RECONFIG_TYPE_RESTART:
1171 iwl_mvm_restart_complete(mvm);
1172 break;
1173 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1174 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1175 break;
1176 }
1177}
1178
a0a09243 1179void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1180{
a0a09243 1181 lockdep_assert_held(&mvm->mutex);
7498cf4c 1182
91a8bcde
JB		 1183 /* firmware counters are obviously reset now, but we shouldn't
1184 * partially track so also clear the fw_reset_accu counters.
1185 */
1186 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1187
8ca151b5
JB		 1188 /* async_handlers_wk is now blocked */
1189
1190 /*
1191 * The work item could be running or queued if the
1192 * ROC time event stops just as we get here.
1193 */
c779273b 1194 flush_work(&mvm->roc_done_wk);
8ca151b5 1195
fcb6b92a 1196 iwl_mvm_stop_device(mvm);
8ca151b5
JB		 1197
1198 iwl_mvm_async_handlers_purge(mvm);
1199 /* async_handlers_list is empty and will stay empty: HW is stopped */
1200
1201 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1202 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1203
7fdf9663
MG		 1204 iwl_free_fw_paging(mvm);
1205
0a79a0c0
EP		 1206 /*
1207 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1208 * won't be called in this case).
8b2b9fbf
AN		 1209 * But make sure to cleanup interfaces that have gone down before/during
1210 * HW restart was requested.
0a79a0c0 1211 */
8b2b9fbf
AN		 1212 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1213 ieee80211_iterate_interfaces(mvm->hw, 0,
1214 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1215
963221be
AB		 1216 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1217 * make sure there's nothing left there and warn if any is found.
1218 */
859d914c 1219 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1220 int i;
1221
507e4cda 1222 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1223 if (WARN_ONCE(mvm->scan_uid_status[i],
1224 "UMAC scan UID %d status was not cleaned\n",
1225 i))
1226 mvm->scan_uid_status[i] = 0;
963221be
AB		 1227 }
1228 }
a0a09243 1229}
bc44886d 1230
a0a09243
LC		 1231static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1232{
1233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1234
1235 flush_work(&mvm->d0i3_exit_work);
1236 flush_work(&mvm->async_handlers_wk);
24afba76 1237 flush_work(&mvm->add_stream_wk);
d2709ad7 1238 cancel_delayed_work_sync(&mvm->fw_dump_wk);
d3a108a4 1239 cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
69e04642 1240 cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
b6eaa45a 1241 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1242
1243 mutex_lock(&mvm->mutex);
1244 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1245 mutex_unlock(&mvm->mutex);
1246
1247 /*
1248 * The worker might have been waiting for the mutex, let it run and
1249 * discover that its list is now empty.
1250 */
1251 cancel_work_sync(&mvm->async_handlers_wk);
1252}
1253
fe0f2de3
IP		 1254static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1255{
1256 u16 i;
1257
1258 lockdep_assert_held(&mvm->mutex);
1259
1260 for (i = 0; i < NUM_PHY_CTX; i++)
1261 if (!mvm->phy_ctxts[i].ref)
1262 return &mvm->phy_ctxts[i];
1263
1264 IWL_ERR(mvm, "No available PHY context\n");
1265 return NULL;
1266}
1267
d44c3fe6
AA		 1268static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1269 s16 tx_power)
1270{
1271 struct iwl_dev_tx_power_cmd cmd = {
4b87e5af
LC		 1272 .v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1273 .v3.mac_context_id =
d44c3fe6 1274 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
4b87e5af 1275 .v3.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1276 };
da03f029 1277 int len = sizeof(cmd);
d44c3fe6 1278
d44c3fe6 1279 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
4b87e5af 1280 cmd.v3.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1281
55bfa4b9
LC		 1282 if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1283 len = sizeof(cmd.v3);
da03f029
JB		 1284
1285 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1286}
1287
8ca151b5
JB		 1288static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1289 struct ieee80211_vif *vif)
1290{
1291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1292 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1293 int ret;
1294
aa5e1832
EG		 1295 mvmvif->mvm = mvm;
1296
d40fc489
GG		 1297 /*
1298 * make sure D0i3 exit is completed, otherwise a target access
1299 * during tx queue configuration could be done when still in
1300 * D0i3 state.
1301 */
1302 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1303 if (ret)
1304 return ret;
1305
8ca151b5
JB		 1306 /*
1307 * Not much to do here. The stack will not allow interface
1308 * types or combinations that we didn't advertise, so we
1309 * don't really have to check the types.
1310 */
1311
1312 mutex_lock(&mvm->mutex);
1313
33cef925
JB		 1314 /* make sure that beacon statistics don't go backwards with FW reset */
1315 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1316 mvmvif->beacon_stats.accu_num_beacons +=
1317 mvmvif->beacon_stats.num_beacons;
1318
e89044d7 1319 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1320 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1321 if (ret)
1322 goto out_unlock;
1323
1c2abf72 1324 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1325 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1326 mvm->vif_count++;
ea183d02 1327
8ca151b5
JB		 1328 /*
1329 * The AP binding flow can be done only after the beacon
1330 * template is configured (which happens only in the mac80211
1331 * start_ap() flow), and adding the broadcast station can happen
1332 * only after the binding.
1333 * In addition, since modifying the MAC before adding a bcast
1334 * station is not allowed by the FW, delay the adding of MAC context to
1335 * the point where we can also add the bcast station.
1336 * In short: there's not much we can do at this point, other than
1337 * allocating resources :)
1338 */
5023d966
JB		 1339 if (vif->type == NL80211_IFTYPE_AP ||
1340 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1341 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1342 if (ret) {
1343 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1344 goto out_release;
1345 }
1346
77740cb4 1347 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1348 goto out_unlock;
1349 }
1350
93190fb0
AA		 1351 mvmvif->features |= hw->netdev_features;
1352
8ca151b5
JB		 1353 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1354 if (ret)
1355 goto out_release;
1356
999609f1 1357 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1358 if (ret)
fd66fc1c 1359 goto out_remove_mac;
8ca151b5 1360
7df15b1e 1361 /* beacon filtering */
a1022927 1362 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1363 if (ret)
1364 goto out_remove_mac;
1365
7df15b1e 1366 if (!mvm->bf_allowed_vif &&
73e5f2c5 1367 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1368 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1369 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1370 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1371 }
1372
8ca151b5
JB		 1373 /*
1374 * P2P_DEVICE interface does not have a channel context assigned to it,
1375 * so a dedicated PHY context is allocated to it and the corresponding
1376 * MAC context is bound to it at this stage.
1377 */
1378 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1379
fe0f2de3
IP		 1380 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1381 if (!mvmvif->phy_ctxt) {
1382 ret = -ENOSPC;
bd3351ba 1383 goto out_free_bf;
fe0f2de3 1384 }
8ca151b5 1385
53a9d61e 1386 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1387 ret = iwl_mvm_binding_add_vif(mvm, vif);
1388 if (ret)
53a9d61e 1389 goto out_unref_phy;
8ca151b5 1390
013290aa 1391 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1392 if (ret)
1393 goto out_unbind;
1394
1395 /* Save a pointer to p2p device vif, so it can later be used to
1396 * update the p2p device MAC when a GO is started/stopped */
1397 mvm->p2p_device_vif = vif;
1398 }
1399
63494374 1400 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1401 goto out_unlock;
1402
1403 out_unbind:
1404 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1405 out_unref_phy:
fe0f2de3 1406 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1407 out_free_bf:
1408 if (mvm->bf_allowed_vif == mvmvif) {
1409 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1410 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1411 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1412 }
8ca151b5
JB		 1413 out_remove_mac:
1414 mvmvif->phy_ctxt = NULL;
1415 iwl_mvm_mac_ctxt_remove(mvm, vif);
1416 out_release:
5ee2b215
AB		 1417 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1418 mvm->vif_count--;
1c2abf72 1419
8ca151b5
JB		 1420 iwl_mvm_mac_ctxt_release(mvm, vif);
1421 out_unlock:
1422 mutex_unlock(&mvm->mutex);
1423
d40fc489
GG		 1424 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1425
8ca151b5
JB		 1426 return ret;
1427}
1428
38a12b5b
JB		 1429static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1430 struct ieee80211_vif *vif)
8ca151b5 1431{
d92b732e 1432 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1433
1434 if (tfd_msk) {
fe92e32a
EG		 1435 /*
1436 * mac80211 first removes all the stations of the vif and
1437 * then removes the vif. When it removes a station it also
1438 * flushes the AMPDU session. So by now, all the AMPDU sessions
1439 * of all the stations of this vif are closed, and the queues
1440 * of these AMPDU sessions are properly closed.
1441 * We still need to take care of the shared queues of the vif.
1442 * Flush them here.
1443 */
8ca151b5 1444 mutex_lock(&mvm->mutex);
5888a40c 1445 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1446 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1447
1448 /*
1449 * There are transports that buffer a few frames in the host.
1450 * For these, the flush above isn't enough since while we were
1451 * flushing, the transport might have sent more frames to the
1452 * device. To solve this, wait here until the transport is
1453 * empty. Technically, this could have replaced the flush
1454 * above, but flush is much faster than draining. So flush
1455 * first, and drain to make sure we have no frames in the
1456 * transport anymore.
1457 * If a station still had frames on the shared queues, it is
1458 * already marked as draining, so to complete the draining, we
1459 * just need to wait until the transport is empty.
1460 */
1461 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1462 }
1463
1464 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1465 /*
1466 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1467 * We assume here that all the packets sent to the OFFCHANNEL
1468 * queue are sent in ROC session.
1469 */
1470 flush_work(&mvm->roc_done_wk);
1471 } else {
1472 /*
1473 * By now, all the AC queues are empty. The AGG queues are
1474 * empty too. We already got all the Tx responses for all the
1475 * packets in the queues. The drain work can have been
0742a75a 1476 * triggered. Flush it.
8ca151b5
JB		 1477 */
1478 flush_work(&mvm->sta_drained_wk);
1479 }
38a12b5b
JB		 1480}
1481
1482static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1483 struct ieee80211_vif *vif)
1484{
1485 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1486 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1487
1488 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1489
1490 mutex_lock(&mvm->mutex);
1491
7df15b1e
HG		 1492 if (mvm->bf_allowed_vif == mvmvif) {
1493 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1494 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1495 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1496 }
1497
63494374
JB		 1498 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1499
8ca151b5
JB		 1500 /*
1501 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1502 * interface is be handled as part of the stop_ap flow.
8ca151b5 1503 */
5023d966
JB		 1504 if (vif->type == NL80211_IFTYPE_AP ||
1505 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1506#ifdef CONFIG_NL80211_TESTMODE
1507 if (vif == mvm->noa_vif) {
1508 mvm->noa_vif = NULL;
1509 mvm->noa_duration = 0;
1510 }
1511#endif
013290aa 1512 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1513 goto out_release;
1514 }
1515
1516 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1517 mvm->p2p_device_vif = NULL;
013290aa 1518 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1519 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1520 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1521 mvmvif->phy_ctxt = NULL;
1522 }
1523
5ee2b215 1524 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1525 mvm->vif_count--;
1c2abf72 1526
999609f1 1527 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1528 iwl_mvm_mac_ctxt_remove(mvm, vif);
1529
1530out_release:
1531 iwl_mvm_mac_ctxt_release(mvm, vif);
1532 mutex_unlock(&mvm->mutex);
1533}
1534
1535static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1536{
8ca151b5
JB		 1537 return 0;
1538}
1539
e59647ea
EP		 1540struct iwl_mvm_mc_iter_data {
1541 struct iwl_mvm *mvm;
1542 int port_id;
1543};
1544
1545static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1546 struct ieee80211_vif *vif)
1547{
1548 struct iwl_mvm_mc_iter_data *data = _data;
1549 struct iwl_mvm *mvm = data->mvm;
1550 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1551 int ret, len;
1552
1553 /* if we don't have free ports, mcast frames will be dropped */
1554 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1555 return;
1556
1557 if (vif->type != NL80211_IFTYPE_STATION ||
1558 !vif->bss_conf.assoc)
1559 return;
1560
1561 cmd->port_id = data->port_id++;
1562 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1563 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1564
1c4abec0 1565 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1566 if (ret)
1567 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1568}
1569
1570static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1571{
1572 struct iwl_mvm_mc_iter_data iter_data = {
1573 .mvm = mvm,
88f2fd73
MG		 1574 };
1575
e59647ea
EP		 1576 lockdep_assert_held(&mvm->mutex);
1577
1578 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1579 return;
1580
1c4abec0 1581 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1582 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1583 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1584}
1585
e59647ea
EP		 1586static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1587 struct netdev_hw_addr_list *mc_list)
8ca151b5 1588{
e59647ea
EP		 1589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1590 struct iwl_mcast_filter_cmd *cmd;
1591 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1592 int addr_count;
1593 bool pass_all;
e59647ea
EP		 1594 int len;
1595
f3bd58f4
MS		 1596 addr_count = netdev_hw_addr_list_count(mc_list);
1597 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1598 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1599 if (pass_all)
e59647ea 1600 addr_count = 0;
e59647ea
EP		 1601
1602 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1603 cmd = kzalloc(len, GFP_ATOMIC);
1604 if (!cmd)
1605 return 0;
1606
1607 if (pass_all) {
1608 cmd->pass_all = 1;
1609 return (u64)(unsigned long)cmd;
1610 }
1611
1612 netdev_hw_addr_list_for_each(addr, mc_list) {
1613 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1614 cmd->count, addr->addr);
1615 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1616 addr->addr, ETH_ALEN);
1617 cmd->count++;
1618 }
1619
1620 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1621}
1622
1623static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1624 unsigned int changed_flags,
1625 unsigned int *total_flags,
1626 u64 multicast)
1627{
e59647ea
EP		 1628 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1629 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1630
e59647ea 1631 mutex_lock(&mvm->mutex);
51b6b9e0 1632
e59647ea
EP		 1633 /* replace previous configuration */
1634 kfree(mvm->mcast_filter_cmd);
1635 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1636
e59647ea
EP		 1637 if (!cmd)
1638 goto out;
51b6b9e0 1639
e59647ea
EP		 1640 iwl_mvm_recalc_multicast(mvm);
1641out:
1642 mutex_unlock(&mvm->mutex);
1643 *total_flags = 0;
51b6b9e0
EG		 1644}
1645
effd1929
AO		 1646static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1647 struct ieee80211_vif *vif,
1648 unsigned int filter_flags,
1649 unsigned int changed_flags)
1650{
1651 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1652
1653 /* We support only filter for probe requests */
1654 if (!(changed_flags & FIF_PROBE_REQ))
1655 return;
1656
1657 /* Supported only for p2p client interfaces */
1658 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1659 !vif->p2p)
1660 return;
1661
1662 mutex_lock(&mvm->mutex);
1663 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1664 mutex_unlock(&mvm->mutex);
1665}
1666
c87163b9
EP		 1667#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1668struct iwl_bcast_iter_data {
1669 struct iwl_mvm *mvm;
1670 struct iwl_bcast_filter_cmd *cmd;
1671 u8 current_filter;
1672};
1673
1674static void
1675iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1676 const struct iwl_fw_bcast_filter *in_filter,
1677 struct iwl_fw_bcast_filter *out_filter)
1678{
1679 struct iwl_fw_bcast_filter_attr *attr;
1680 int i;
1681
1682 memcpy(out_filter, in_filter, sizeof(*out_filter));
1683
1684 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1685 attr = &out_filter->attrs[i];
1686
1687 if (!attr->mask)
1688 break;
1689
2ee8f021
EP		 1690 switch (attr->reserved1) {
1691 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1692 if (vif->bss_conf.arp_addr_cnt != 1) {
1693 attr->mask = 0;
1694 continue;
1695 }
1696
1697 attr->val = vif->bss_conf.arp_addr_list[0];
1698 break;
1699 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1700 attr->val = *(__be32 *)&vif->addr[2];
1701 break;
1702 default:
1703 break;
1704 }
1705 attr->reserved1 = 0;
c87163b9
EP		 1706 out_filter->num_attrs++;
1707 }
1708}
1709
1710static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1711 struct ieee80211_vif *vif)
1712{
1713 struct iwl_bcast_iter_data *data = _data;
1714 struct iwl_mvm *mvm = data->mvm;
1715 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1716 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1717 struct iwl_fw_bcast_mac *bcast_mac;
1718 int i;
1719
1720 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1721 return;
1722
1723 bcast_mac = &cmd->macs[mvmvif->id];
1724
e48393e8
IP		 1725 /*
1726 * enable filtering only for associated stations, but not for P2P
1727 * Clients
1728 */
1729 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1730 !vif->bss_conf.assoc)
c87163b9
EP		 1731 return;
1732
1733 bcast_mac->default_discard = 1;
1734
1735 /* copy all configured filters */
1736 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1737 /*
1738 * Make sure we don't exceed our filters limit.
1739 * if there is still a valid filter to be configured,
1740 * be on the safe side and just allow bcast for this mac.
1741 */
1742 if (WARN_ON_ONCE(data->current_filter >=
1743 ARRAY_SIZE(cmd->filters))) {
1744 bcast_mac->default_discard = 0;
1745 bcast_mac->attached_filters = 0;
1746 break;
1747 }
1748
1749 iwl_mvm_set_bcast_filter(vif,
1750 &mvm->bcast_filters[i],
1751 &cmd->filters[data->current_filter]);
1752
1753 /* skip current filter if it contains no attributes */
1754 if (!cmd->filters[data->current_filter].num_attrs)
1755 continue;
1756
1757 /* attach the filter to current mac */
1758 bcast_mac->attached_filters |=
1759 cpu_to_le16(BIT(data->current_filter));
1760
1761 data->current_filter++;
1762 }
1763}
1764
de06a59e
EP		 1765bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1766 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1767{
c87163b9
EP		 1768 struct iwl_bcast_iter_data iter_data = {
1769 .mvm = mvm,
de06a59e 1770 .cmd = cmd,
c87163b9
EP		 1771 };
1772
3b8983b1
MS		 1773 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1774 return false;
1775
de06a59e
EP		 1776 memset(cmd, 0, sizeof(*cmd));
1777 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1778 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1779
1780#ifdef CONFIG_IWLWIFI_DEBUGFS
1781 /* use debugfs filters/macs if override is configured */
1782 if (mvm->dbgfs_bcast_filtering.override) {
1783 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1784 sizeof(cmd->filters));
1785 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1786 sizeof(cmd->macs));
1787 return true;
1788 }
1789#endif
c87163b9
EP		 1790
1791 /* if no filters are configured, do nothing */
1792 if (!mvm->bcast_filters)
de06a59e 1793 return false;
c87163b9
EP		 1794
1795 /* configure and attach these filters for each associated sta vif */
1796 ieee80211_iterate_active_interfaces(
1797 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1798 iwl_mvm_bcast_filter_iterator, &iter_data);
1799
de06a59e
EP		 1800 return true;
1801}
34672bb3
EP		 1802
1803static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
de06a59e
EP		 1804{
1805 struct iwl_bcast_filter_cmd cmd;
1806
1807 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1808 return 0;
1809
1810 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1811 return 0;
1812
a1022927 1813 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1814 sizeof(cmd), &cmd);
1815}
1816#else
34672bb3 1817static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm)
c87163b9
EP		 1818{
1819 return 0;
1820}
1821#endif
1822
a07a8f37
SS		 1823static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1824 struct ieee80211_vif *vif)
1825{
1826 struct iwl_mu_group_mgmt_cmd cmd = {};
1827
1828 memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1829 WLAN_MEMBERSHIP_LEN);
1830 memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1831 WLAN_USER_POSITION_LEN);
1832
1833 return iwl_mvm_send_cmd_pdu(mvm,
1834 WIDE_ID(DATA_PATH_GROUP,
1835 UPDATE_MU_GROUPS_CMD),
1836 0, sizeof(cmd), &cmd);
1837}
1838
f92659a1
SS		 1839static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1840 struct ieee80211_vif *vif)
1841{
1842 if (vif->mu_mimo_owner) {
1843 struct iwl_mu_group_mgmt_notif *notif = _data;
1844
1845 /*
1846 * MU-MIMO Group Id action frame is little endian. We treat
1847 * the data received from firmware as if it came from the
1848 * action frame, so no conversion is needed.
1849 */
1850 ieee80211_update_mu_groups(vif,
1851 (u8 *)&notif->membership_status,
1852 (u8 *)&notif->user_position);
1853 }
1854}
1855
1856void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1857 struct iwl_rx_cmd_buffer *rxb)
1858{
1859 struct iwl_rx_packet *pkt = rxb_addr(rxb);
1860 struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1861
1862 ieee80211_iterate_active_interfaces_atomic(
1863 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1864 iwl_mvm_mu_mimo_iface_iterator, notif);
1865}
1866
8ca151b5
JB		 1867static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1868 struct ieee80211_vif *vif,
1869 struct ieee80211_bss_conf *bss_conf,
1870 u32 changes)
1871{
1872 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1873 int ret;
1874
6e97b0d2
IP		 1875 /*
1876 * Re-calculate the tsf id, as the master-slave relations depend on the
1877 * beacon interval, which was not known when the station interface was
1878 * added.
1879 */
1880 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1881 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1882
03098268
AE		 1883 if (changes & BSS_CHANGED_ASSOC && !bss_conf->assoc &&
1884 mvmvif->lqm_active)
1885 iwl_mvm_send_lqm_cmd(vif, LQM_CMD_OPERATION_STOP_MEASUREMENT,
1886 0, 0);
1887
3dfd3a97
JB		 1888 /*
1889 * If we're not associated yet, take the (new) BSSID before associating
1890 * so the firmware knows. If we're already associated, then use the old
1891 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1892 * branch for disassociation below.
1893 */
1894 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1895 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1896
1897 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1898 if (ret)
1899 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1900
3dfd3a97
JB		 1901 /* after sending it once, adopt mac80211 data */
1902 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1903 mvmvif->associated = bss_conf->assoc;
1904
8ca151b5
JB		 1905 if (changes & BSS_CHANGED_ASSOC) {
1906 if (bss_conf->assoc) {
33cef925
JB		 1907 /* clear statistics to get clean beacon counter */
1908 iwl_mvm_request_statistics(mvm, true);
1909 memset(&mvmvif->beacon_stats, 0,
1910 sizeof(mvmvif->beacon_stats));
1911
8ca151b5 1912 /* add quota for this interface */
7754ae79 1913 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1914 if (ret) {
1915 IWL_ERR(mvm, "failed to update quotas\n");
1916 return;
1917 }
016d27e1
JB		 1918
1919 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1920 &mvm->status)) {
1921 /*
1922 * If we're restarting then the firmware will
1923 * obviously have lost synchronisation with
1924 * the AP. It will attempt to synchronise by
1925 * itself, but we can make it more reliable by
1926 * scheduling a session protection time event.
1927 *
1928 * The firmware needs to receive a beacon to
1929 * catch up with synchronisation, use 110% of
1930 * the beacon interval.
1931 *
1932 * Set a large maximum delay to allow for more
1933 * than a single interface.
1934 */
1935 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1936 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1937 5 * dur, false);
016d27e1 1938 }
1f3b0ff8
LE		 1939
1940 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1941 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1942 if (vif->p2p) {
29a90a49 1943 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1944 iwl_mvm_update_smps(mvm, vif,
1945 IWL_MVM_SMPS_REQ_PROT,
1946 IEEE80211_SMPS_DYNAMIC);
1947 }
8ca151b5 1948 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1949 /*
1950 * If update fails - SF might be running in associated
1951 * mode while disassociated - which is forbidden.
1952 */
1953 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1954 "Failed to update SF upon disassociation\n");
1955
8ca151b5
JB		 1956 /* remove AP station now that the MAC is unassoc */
1957 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1958 if (ret)
1959 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1960
1961 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1962 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1963 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1964 /* remove quota for this interface */
7754ae79 1965 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 1966 if (ret)
1967 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1968
1969 if (vif->p2p)
1970 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1971
1972 /* this will take the cleared BSSID from bss_conf */
1973 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1974 if (ret)
1975 IWL_ERR(mvm,
1976 "failed to update MAC %pM (clear after unassoc)\n",
1977 vif->addr);
8ca151b5 1978 }
a20fd398 1979
a07a8f37
SS		 1980 /*
1981 * The firmware tracks the MU-MIMO group on its own.
f92659a1 1982 * However, on HW restart we should restore this data.
a07a8f37
SS		 1983 */
1984 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
f92659a1 1985 (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
a07a8f37
SS		 1986 ret = iwl_mvm_update_mu_groups(mvm, vif);
1987 if (ret)
1988 IWL_ERR(mvm,
1989 "failed to update VHT MU_MIMO groups\n");
1990 }
1991
e59647ea 1992 iwl_mvm_recalc_multicast(mvm);
34672bb3 1993 iwl_mvm_configure_bcast_filter(mvm);
e59647ea 1994
a20fd398
AO		 1995 /* reset rssi values */
1996 mvmvif->bf_data.ave_beacon_signal = 0;
1997
8e484f0b 1998 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1999 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2000 IEEE80211_SMPS_AUTOMATIC);
355346ba
AS		 2001 if (fw_has_capa(&mvm->fw->ucode_capa,
2002 IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2003 iwl_mvm_config_scan(mvm);
989c6505 2004 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2005 /*
2006 * We received a beacon _after_ association so
2007 * remove the session protection.
2008 */
2009 iwl_mvm_remove_time_event(mvm, mvmvif,
2010 &mvmvif->time_event_data);
8ca151b5 2011 }
cc87d322
EH		 2012
2013 if (changes & BSS_CHANGED_BEACON_INFO) {
2014 iwl_mvm_sf_update(mvm, vif, false);
2015 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2016 }
2017
283115fb
AA		 2018 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2019 /*
2020 * Send power command on every beacon change,
2021 * because we may have not enabled beacon abort yet.
2022 */
2023 BSS_CHANGED_BEACON_INFO)) {
1bc10d3b
JB		 2024 ret = iwl_mvm_power_update_mac(mvm);
2025 if (ret)
2026 IWL_ERR(mvm, "failed to update power mode\n");
2027 }
2028
88f2fd73
MG		 2029 if (changes & BSS_CHANGED_TXPOWER) {
2030 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2031 bss_conf->txpower);
2032 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2033 }
a20fd398
AO		 2034
2035 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2036 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2037 /* reset cqm events tracking */
2038 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2039 if (mvmvif->bf_data.bf_enabled) {
2040 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2041 if (ret)
2042 IWL_ERR(mvm,
2043 "failed to update CQM thresholds\n");
2044 }
a20fd398 2045 }
2ee8f021
EP		 2046
2047 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2048 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
34672bb3 2049 iwl_mvm_configure_bcast_filter(mvm);
2ee8f021 2050 }
8ca151b5
JB		 2051}
2052
5023d966
JB		 2053static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2054 struct ieee80211_vif *vif)
8ca151b5
JB		 2055{
2056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2057 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2058 int ret;
2059
576eeee9
EP		 2060 /*
2061 * iwl_mvm_mac_ctxt_add() might read directly from the device
2062 * (the system time), so make sure it is available.
2063 */
2064 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2065 if (ret)
2066 return ret;
2067
8ca151b5
JB		 2068 mutex_lock(&mvm->mutex);
2069
2070 /* Send the beacon template */
2071 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2072 if (ret)
2073 goto out_unlock;
2074
6e97b0d2
IP		 2075 /*
2076 * Re-calculate the tsf id, as the master-slave relations depend on the
2077 * beacon interval, which was not known when the AP interface was added.
2078 */
2079 if (vif->type == NL80211_IFTYPE_AP)
2080 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2081
94939080
GG		 2082 mvmvif->ap_assoc_sta_count = 0;
2083
8ca151b5
JB		 2084 /* Add the mac context */
2085 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2086 if (ret)
2087 goto out_unlock;
2088
2089 /* Perform the binding */
2090 ret = iwl_mvm_binding_add_vif(mvm, vif);
2091 if (ret)
2092 goto out_remove;
2093
8ca151b5
JB		 2094 /* Send the bcast station. At this stage the TBTT and DTIM time events
2095 * are added and applied to the scheduler */
013290aa 2096 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2097 if (ret)
2098 goto out_unbind;
2099
5691e218
IP		 2100 /* must be set before quota calculations */
2101 mvmvif->ap_ibss_active = true;
2102
a11e144e 2103 /* power updated needs to be done before quotas */
999609f1 2104 iwl_mvm_power_update_mac(mvm);
a11e144e 2105
7754ae79 2106 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2107 if (ret)
a11e144e 2108 goto out_quota_failed;
8ca151b5 2109
5023d966 2110 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2111 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2112 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2113
29a90a49
EP		 2114 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2115
8e484f0b 2116 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2117
f697267f
AN		 2118 /* we don't support TDLS during DCM */
2119 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2120 iwl_mvm_teardown_tdls_peers(mvm);
2121
939e4904 2122 goto out_unlock;
8ca151b5 2123
a11e144e 2124out_quota_failed:
999609f1 2125 iwl_mvm_power_update_mac(mvm);
5691e218 2126 mvmvif->ap_ibss_active = false;
013290aa 2127 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2128out_unbind:
2129 iwl_mvm_binding_remove_vif(mvm, vif);
2130out_remove:
2131 iwl_mvm_mac_ctxt_remove(mvm, vif);
2132out_unlock:
2133 mutex_unlock(&mvm->mutex);
576eeee9 2134 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2135 return ret;
2136}
2137
5023d966
JB		 2138static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2139 struct ieee80211_vif *vif)
8ca151b5
JB		 2140{
2141 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2142 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2143
38a12b5b
JB		 2144 iwl_mvm_prepare_mac_removal(mvm, vif);
2145
8ca151b5
JB		 2146 mutex_lock(&mvm->mutex);
2147
664322fa 2148 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2149 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2150 iwl_mvm_remove_time_event(mvm, mvmvif,
2151 &mvmvif->time_event_data);
664322fa 2152 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2153 mvmvif->csa_countdown = false;
7f0a7c67 2154 }
664322fa 2155
003e5236
AO		 2156 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2157 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2158 mvm->csa_tx_block_bcn_timeout = 0;
2159 }
2160
5023d966 2161 mvmvif->ap_ibss_active = false;
1c87bbad 2162 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2163
8e484f0b 2164 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2165
29a90a49
EP		 2166 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2167
5023d966 2168 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2169 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2170 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2171
7754ae79 2172 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2173 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2174 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2175
999609f1 2176 iwl_mvm_power_update_mac(mvm);
a11e144e 2177
8ca151b5
JB		 2178 iwl_mvm_mac_ctxt_remove(mvm, vif);
2179
2180 mutex_unlock(&mvm->mutex);
2181}
2182
5023d966
JB		 2183static void
2184iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2185 struct ieee80211_vif *vif,
2186 struct ieee80211_bss_conf *bss_conf,
2187 u32 changes)
8ca151b5 2188{
be2056fc 2189 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2190
be2056fc
IP		 2191 /* Changes will be applied when the AP/IBSS is started */
2192 if (!mvmvif->ap_ibss_active)
2193 return;
2194
863230da 2195 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2196 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2197 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2198 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2199
8ca151b5 2200 /* Need to send a new beacon template to the FW */
863230da
JB		 2201 if (changes & BSS_CHANGED_BEACON &&
2202 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2203 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2204
2205 if (changes & BSS_CHANGED_TXPOWER) {
2206 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2207 bss_conf->txpower);
2208 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2209 }
8ca151b5
JB		 2210}
2211
2212static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2213 struct ieee80211_vif *vif,
2214 struct ieee80211_bss_conf *bss_conf,
2215 u32 changes)
2216{
2217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2218
576eeee9
EP		 2219 /*
2220 * iwl_mvm_bss_info_changed_station() might call
2221 * iwl_mvm_protect_session(), which reads directly from
2222 * the device (the system time), so make sure it is available.
2223 */
2224 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2225 return;
2226
8ca151b5
JB		 2227 mutex_lock(&mvm->mutex);
2228
723f02ed 2229 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2230 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2231
8ca151b5
JB		 2232 switch (vif->type) {
2233 case NL80211_IFTYPE_STATION:
2234 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2235 break;
2236 case NL80211_IFTYPE_AP:
5023d966
JB		 2237 case NL80211_IFTYPE_ADHOC:
2238 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5 2239 break;
91b08c2d
AE		 2240 case NL80211_IFTYPE_MONITOR:
2241 if (changes & BSS_CHANGED_MU_GROUPS)
2242 iwl_mvm_update_mu_groups(mvm, vif);
2243 break;
8ca151b5
JB		 2244 default:
2245 /* shouldn't happen */
2246 WARN_ON_ONCE(1);
2247 }
2248
2249 mutex_unlock(&mvm->mutex);
576eeee9 2250 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2251}
2252
2253static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2254 struct ieee80211_vif *vif,
c56ef672 2255 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2256{
2257 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2258 int ret;
2259
6749dd80
LC		 2260 if (hw_req->req.n_channels == 0 ||
2261 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2262 return -EINVAL;
2263
2264 mutex_lock(&mvm->mutex);
6749dd80 2265 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2266 mutex_unlock(&mvm->mutex);
6749dd80 2267
8ca151b5
JB		 2268 return ret;
2269}
2270
2271static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif)
2273{
2274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2275
2276 mutex_lock(&mvm->mutex);
2277
e7d3abab
LC		 2278 /* Due to a race condition, it's possible that mac80211 asks
2279 * us to stop a hw_scan when it's already stopped. This can
2280 * happen, for instance, if we stopped the scan ourselves,
2281 * called ieee80211_scan_completed() and the userspace called
2282 * cancel scan scan before ieee80211_scan_work() could run.
2283 * To handle that, simply return if the scan is not running.
2284 */
262888fc 2285 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2286 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2287
2288 mutex_unlock(&mvm->mutex);
2289}
2290
2291static void
2292iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2293 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2294 int num_frames,
2295 enum ieee80211_frame_release_type reason,
2296 bool more_data)
2297{
2298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2299
3e56eadf 2300 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2301
3e56eadf
JB		 2302 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2303 tids, more_data, false);
2304}
2305
2306static void
2307iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2308 struct ieee80211_sta *sta, u16 tids,
2309 int num_frames,
2310 enum ieee80211_frame_release_type reason,
2311 bool more_data)
2312{
2313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2314
2315 /* Called when we need to transmit (a) frame(s) from agg queue */
2316
2317 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2318 tids, more_data, true);
8ca151b5
JB		 2319}
2320
2321static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2322 struct ieee80211_vif *vif,
2323 enum sta_notify_cmd cmd,
2324 struct ieee80211_sta *sta)
2325{
2326 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2327 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2328 unsigned long txqs = 0, tids = 0;
3e56eadf 2329 int tid;
8ca151b5 2330
c22b0ff5
EG		 2331 spin_lock_bh(&mvmsta->lock);
2332 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2333 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2334
2335 if (tid_data->state != IWL_AGG_ON &&
2336 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2337 continue;
2338
2339 __set_bit(tid_data->txq_id, &txqs);
2340
2341 if (iwl_mvm_tid_queued(tid_data) == 0)
2342 continue;
2343
2344 __set_bit(tid, &tids);
2345 }
2346
8ca151b5
JB		 2347 switch (cmd) {
2348 case STA_NOTIFY_SLEEP:
e3d4bc8c 2349 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2350 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2351
c22b0ff5 2352 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2353 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2354
2355 if (txqs)
2356 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2357 /*
2358 * The fw updates the STA to be asleep. Tx packets on the Tx
2359 * queues to this station will not be transmitted. The fw will
2360 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2361 */
2362 break;
2363 case STA_NOTIFY_AWAKE:
881acd89 2364 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2365 break;
c22b0ff5
EG		 2366
2367 if (txqs)
2368 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2369 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2370 break;
2371 default:
2372 break;
2373 }
c22b0ff5 2374 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2375}
2376
1ddbbb0c
JB		 2377static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2378 struct ieee80211_vif *vif,
2379 struct ieee80211_sta *sta)
2380{
2381 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2382 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2383
2384 /*
2385 * This is called before mac80211 does RCU synchronisation,
2386 * so here we already invalidate our internal RCU-protected
2387 * station pointer. The rest of the code will thus no longer
2388 * be able to find the station this way, and we don't rely
2389 * on further RCU synchronisation after the sta_state()
2390 * callback deleted the station.
2391 */
2392 mutex_lock(&mvm->mutex);
2393 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2394 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2395 ERR_PTR(-ENOENT));
94939080 2396
1ddbbb0c
JB		 2397 mutex_unlock(&mvm->mutex);
2398}
2399
bd1ba664
JB		 2400static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2401 const u8 *bssid)
2402{
2403 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2404 return;
2405
c5241b0c 2406 if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
cee5a882
AA		 2407 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2408 return;
2409 }
2410
11dee0b4
EG		 2411 if (!vif->p2p &&
2412 (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
bd1ba664
JB		 2413 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2414 return;
2415 }
2416
2417 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2418}
2419
1e8f1329
GBA		 2420static void
2421iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2422 struct ieee80211_vif *vif, u8 *peer_addr,
2423 enum nl80211_tdls_operation action)
2424{
2425 struct iwl_fw_dbg_trigger_tlv *trig;
2426 struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2427
2428 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TDLS))
2429 return;
2430
2431 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TDLS);
2432 tdls_trig = (void *)trig->data;
2433 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
2434 return;
2435
2436 if (!(tdls_trig->action_bitmap & BIT(action)))
2437 return;
2438
2439 if (tdls_trig->peer_mode &&
2440 memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2441 return;
2442
2443 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
2444 "TDLS event occurred, peer %pM, action %d",
2445 peer_addr, action);
2446}
2447
24afba76
LK		 2448static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm *mvm,
2449 struct iwl_mvm_sta *mvm_sta)
2450{
2451 struct iwl_mvm_tid_data *tid_data;
2452 struct sk_buff *skb;
2453 int i;
2454
2455 spin_lock_bh(&mvm_sta->lock);
2456 for (i = 0; i <= IWL_MAX_TID_COUNT; i++) {
2457 tid_data = &mvm_sta->tid_data[i];
2458 while ((skb = __skb_dequeue(&tid_data->deferred_tx_frames)))
2459 ieee80211_free_txskb(mvm->hw, skb);
2460 }
2461 spin_unlock_bh(&mvm_sta->lock);
2462}
2463
8ca151b5
JB		 2464static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2465 struct ieee80211_vif *vif,
2466 struct ieee80211_sta *sta,
2467 enum ieee80211_sta_state old_state,
2468 enum ieee80211_sta_state new_state)
2469{
2470 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2471 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2472 int ret;
2473
2474 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2475 sta->addr, old_state, new_state);
2476
2477 /* this would be a mac80211 bug ... but don't crash */
2478 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2479 return -EINVAL;
2480
2481 /* if a STA is being removed, reuse its ID */
2482 flush_work(&mvm->sta_drained_wk);
2483
24afba76
LK		 2484 /*
2485 * If we are in a STA removal flow and in DQA mode:
2486 *
2487 * This is after the sync_rcu part, so the queues have already been
2488 * flushed. No more TXs on their way in mac80211's path, and no more in
2489 * the queues.
2490 * Also, we won't be getting any new TX frames for this station.
2491 * What we might have are deferred TX frames that need to be taken care
2492 * of.
2493 *
2494 * Drop any still-queued deferred-frame before removing the STA, and
2495 * make sure the worker is no longer handling frames for this STA.
2496 */
2497 if (old_state == IEEE80211_STA_NONE &&
2498 new_state == IEEE80211_STA_NOTEXIST &&
2499 iwl_mvm_is_dqa_supported(mvm)) {
2500 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2501
2502 iwl_mvm_purge_deferred_tx_frames(mvm, mvm_sta);
2503 flush_work(&mvm->add_stream_wk);
2504
2505 /*
2506 * No need to make sure deferred TX indication is off since the
2507 * worker will already remove it if it was on
2508 */
2509 }
2510
8ca151b5
JB		 2511 mutex_lock(&mvm->mutex);
2512 if (old_state == IEEE80211_STA_NOTEXIST &&
2513 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2514 /*
2515 * Firmware bug - it'll crash if the beacon interval is less
2516 * than 16. We can't avoid connecting at all, so refuse the
2517 * station state change, this will cause mac80211 to abandon
2518 * attempts to connect to this AP, and eventually wpa_s will
2519 * blacklist the AP...
2520 */
2521 if (vif->type == NL80211_IFTYPE_STATION &&
2522 vif->bss_conf.beacon_int < 16) {
2523 IWL_ERR(mvm,
2524 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2525 sta->addr, vif->bss_conf.beacon_int);
2526 ret = -EINVAL;
2527 goto out_unlock;
2528 }
cf7b491d
AN		 2529
2530 if (sta->tdls &&
2531 (vif->p2p ||
fa3d07e4
AN		 2532 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2533 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2534 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2535 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2536 ret = -EBUSY;
2537 goto out_unlock;
2538 }
2539
8ca151b5 2540 ret = iwl_mvm_add_sta(mvm, vif, sta);
1e8f1329 2541 if (sta->tdls && ret == 0) {
fa3d07e4 2542 iwl_mvm_recalc_tdls_state(mvm, vif, true);
1e8f1329
GBA		 2543 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2544 NL80211_TDLS_SETUP);
2545 }
8ca151b5
JB		 2546 } else if (old_state == IEEE80211_STA_NONE &&
2547 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2548 /*
2549 * EBS may be disabled due to previous failures reported by FW.
2550 * Reset EBS status here assuming environment has been changed.
2551 */
2552 mvm->last_ebs_successful = true;
bd1ba664 2553 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2554 ret = 0;
2555 } else if (old_state == IEEE80211_STA_AUTH &&
2556 new_state == IEEE80211_STA_ASSOC) {
8be30c13
AB		 2557 if (vif->type == NL80211_IFTYPE_AP) {
2558 mvmvif->ap_assoc_sta_count++;
2559 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2560 }
7a453973
JB		 2561 ret = iwl_mvm_update_sta(mvm, vif, sta);
2562 if (ret == 0)
2563 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2564 mvmvif->phy_ctxt->channel->band,
2565 true);
8ca151b5
JB		 2566 } else if (old_state == IEEE80211_STA_ASSOC &&
2567 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2568
2569 /* we don't support TDLS during DCM */
2570 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2571 iwl_mvm_teardown_tdls_peers(mvm);
2572
1e8f1329
GBA		 2573 if (sta->tdls)
2574 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2575 NL80211_TDLS_ENABLE_LINK);
2576
7df15b1e 2577 /* enable beacon filtering */
fa7b2e7f 2578 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2579 ret = 0;
2580 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2581 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2582 /* disable beacon filtering */
a1022927 2583 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2584 ret = 0;
2585 } else if (old_state == IEEE80211_STA_ASSOC &&
2586 new_state == IEEE80211_STA_AUTH) {
8be30c13
AB		 2587 if (vif->type == NL80211_IFTYPE_AP) {
2588 mvmvif->ap_assoc_sta_count--;
2589 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2590 }
8ca151b5
JB		 2591 ret = 0;
2592 } else if (old_state == IEEE80211_STA_AUTH &&
2593 new_state == IEEE80211_STA_NONE) {
2594 ret = 0;
2595 } else if (old_state == IEEE80211_STA_NONE &&
2596 new_state == IEEE80211_STA_NOTEXIST) {
2597 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1e8f1329 2598 if (sta->tdls) {
fa3d07e4 2599 iwl_mvm_recalc_tdls_state(mvm, vif, false);
1e8f1329
GBA		 2600 iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
2601 NL80211_TDLS_DISABLE_LINK);
2602 }
8ca151b5
JB		 2603 } else {
2604 ret = -EIO;
2605 }
48bc1307 2606 out_unlock:
8ca151b5
JB		 2607 mutex_unlock(&mvm->mutex);
2608
9c126cd6
LK		 2609 if (sta->tdls && ret == 0) {
2610 if (old_state == IEEE80211_STA_NOTEXIST &&
2611 new_state == IEEE80211_STA_NONE)
2612 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2613 else if (old_state == IEEE80211_STA_NONE &&
2614 new_state == IEEE80211_STA_NOTEXIST)
2615 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2616 }
2617
8ca151b5
JB		 2618 return ret;
2619}
2620
2621static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2622{
2623 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2624
2625 mvm->rts_threshold = value;
2626
2627 return 0;
2628}
2629
1f3b0ff8
LE		 2630static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2631 struct ieee80211_vif *vif,
2632 struct ieee80211_sta *sta, u32 changed)
2633{
2634 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2635
2636 if (vif->type == NL80211_IFTYPE_STATION &&
2637 changed & IEEE80211_RC_NSS_CHANGED)
2638 iwl_mvm_sf_update(mvm, vif, false);
2639}
2640
8ca151b5
JB		 2641static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2642 struct ieee80211_vif *vif, u16 ac,
2643 const struct ieee80211_tx_queue_params *params)
2644{
2645 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2646 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2647
2648 mvmvif->queue_params[ac] = *params;
2649
2650 /*
2651 * No need to update right away, we'll get BSS_CHANGED_QOS
2652 * The exception is P2P_DEVICE interface which needs immediate update.
2653 */
2654 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2655 int ret;
2656
2657 mutex_lock(&mvm->mutex);
3dfd3a97 2658 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2659 mutex_unlock(&mvm->mutex);
2660 return ret;
2661 }
2662 return 0;
2663}
2664
2665static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2666 struct ieee80211_vif *vif)
2667{
2668 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
7c70fee5
SS		 2669 u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2670 u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
8ca151b5
JB		 2671
2672 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2673 return;
2674
576eeee9
EP		 2675 /*
2676 * iwl_mvm_protect_session() reads directly from the device
2677 * (the system time), so make sure it is available.
2678 */
2679 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2680 return;
2681
8ca151b5
JB		 2682 mutex_lock(&mvm->mutex);
2683 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2684 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2685 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2686
2687 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2688}
2689
35a000b7
DS		 2690static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2691 struct ieee80211_vif *vif,
2692 struct cfg80211_sched_scan_request *req,
633e2713 2693 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2694{
2695 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2696
35a000b7 2697 int ret;
4660dfbb 2698
35a000b7
DS		 2699 mutex_lock(&mvm->mutex);
2700
1f940386 2701 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2702 ret = -EBUSY;
2703 goto out;
2704 }
2705
19945dfb 2706 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2707
35a000b7
DS		 2708out:
2709 mutex_unlock(&mvm->mutex);
2710 return ret;
2711}
2712
37e3308c
JB		 2713static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2714 struct ieee80211_vif *vif)
35a000b7
DS		 2715{
2716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2717 int ret;
35a000b7
DS		 2718
2719 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2720
2721 /* Due to a race condition, it's possible that mac80211 asks
2722 * us to stop a sched_scan when it's already stopped. This
2723 * can happen, for instance, if we stopped the scan ourselves,
2724 * called ieee80211_sched_scan_stopped() and the userspace called
2725 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2726 * could run. To handle this, simply return if the scan is
2727 * not running.
2728 */
262888fc 2729 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2730 mutex_unlock(&mvm->mutex);
2731 return 0;
2732 }
2733
c7d42480 2734 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2735 mutex_unlock(&mvm->mutex);
33ea27f6 2736 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2737
33ea27f6 2738 return ret;
35a000b7
DS		 2739}
2740
8ca151b5
JB		 2741static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2742 enum set_key_cmd cmd,
2743 struct ieee80211_vif *vif,
2744 struct ieee80211_sta *sta,
2745 struct ieee80211_key_conf *key)
2746{
2747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
f5e28eac
JB		 2748 struct iwl_mvm_sta *mvmsta;
2749 struct iwl_mvm_key_pn *ptk_pn;
2750 int keyidx = key->keyidx;
8ca151b5 2751 int ret;
d6ee54a9 2752 u8 key_offset;
8ca151b5
JB		 2753
2754 if (iwlwifi_mod_params.sw_crypto) {
2755 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2756 return -EOPNOTSUPP;
2757 }
2758
2759 switch (key->cipher) {
2760 case WLAN_CIPHER_SUITE_TKIP:
2761 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1ad4f639 2762 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
8ca151b5 2763 break;
ca8c0f4b 2764 case WLAN_CIPHER_SUITE_CCMP:
2a53d166
AB		 2765 case WLAN_CIPHER_SUITE_GCMP:
2766 case WLAN_CIPHER_SUITE_GCMP_256:
ca8c0f4b
JB		 2767 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2768 break;
8ca151b5 2769 case WLAN_CIPHER_SUITE_AES_CMAC:
8e160ab8
AB		 2770 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2771 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
30686bf7 2772 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2773 break;
2774 case WLAN_CIPHER_SUITE_WEP40:
2775 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2776 /* For non-client mode, only use WEP keys for TX as we probably
2777 * don't have a station yet anyway and would then have to keep
2778 * track of the keys, linking them to each of the clients/peers
2779 * as they appear. For now, don't do that, for performance WEP
2780 * offload doesn't really matter much, but we need it for some
2781 * other offload features in client mode.
8ca151b5 2782 */
ba3943b0
JB		 2783 if (vif->type != NL80211_IFTYPE_STATION)
2784 return 0;
2785 break;
8ca151b5 2786 default:
e36e5433
MS		 2787 /* currently FW supports only one optional cipher scheme */
2788 if (hw->n_cipher_schemes &&
2789 hw->cipher_schemes->cipher == key->cipher)
2790 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2791 else
2792 return -EOPNOTSUPP;
8ca151b5
JB		 2793 }
2794
2795 mutex_lock(&mvm->mutex);
2796
2797 switch (cmd) {
2798 case SET_KEY:
5023d966
JB		 2799 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2800 vif->type == NL80211_IFTYPE_AP) && !sta) {
2801 /*
2802 * GTK on AP interface is a TX-only key, return 0;
2803 * on IBSS they're per-station and because we're lazy
2804 * we don't support them for RX, so do the same.
8e160ab8 2805 * CMAC/GMAC in AP/IBSS modes must be done in software.
5023d966 2806 */
8e160ab8
AB		 2807 if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
2808 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
2809 key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256)
81279c49
JB		 2810 ret = -EOPNOTSUPP;
2811 else
2812 ret = 0;
6caffd4f
JB		 2813 key->hw_key_idx = STA_KEY_IDX_INVALID;
2814 break;
2815 }
2816
b546dcd6
JB		 2817 /* During FW restart, in order to restore the state as it was,
2818 * don't try to reprogram keys we previously failed for.
2819 */
2820 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2821 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2822 IWL_DEBUG_MAC80211(mvm,
2823 "skip invalid idx key programming during restart\n");
2824 ret = 0;
2825 break;
2826 }
2827
f5e28eac
JB		 2828 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2829 sta && iwl_mvm_has_new_rx_api(mvm) &&
2830 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2831 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2832 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2833 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2834 struct ieee80211_key_seq seq;
2835 int tid, q;
2836
2837 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2838 WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
2839 ptk_pn = kzalloc(sizeof(*ptk_pn) +
2840 mvm->trans->num_rx_queues *
2841 sizeof(ptk_pn->q[0]),
2842 GFP_KERNEL);
2843 if (!ptk_pn) {
2844 ret = -ENOMEM;
2845 break;
2846 }
2847
2848 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2849 ieee80211_get_key_rx_seq(key, tid, &seq);
2850 for (q = 0; q < mvm->trans->num_rx_queues; q++)
2851 memcpy(ptk_pn->q[q].pn[tid],
2852 seq.ccmp.pn,
2853 IEEE80211_CCMP_PN_LEN);
2854 }
2855
2856 rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
2857 }
2858
d6ee54a9
LC		 2859 /* in HW restart reuse the index, otherwise request a new one */
2860 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
2861 key_offset = key->hw_key_idx;
2862 else
2863 key_offset = STA_KEY_IDX_INVALID;
2864
8ca151b5 2865 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 2866 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 2867 if (ret) {
2868 IWL_WARN(mvm, "set key failed\n");
2869 /*
2870 * can't add key for RX, but we don't need it
2871 * in the device for TX so still return 0
2872 */
6caffd4f 2873 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2874 ret = 0;
2875 }
2876
2877 break;
2878 case DISABLE_KEY:
6caffd4f
JB		 2879 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2880 ret = 0;
2881 break;
2882 }
2883
f5e28eac
JB		 2884 if (sta && iwl_mvm_has_new_rx_api(mvm) &&
2885 key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
2886 (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
2a53d166
AB		 2887 key->cipher == WLAN_CIPHER_SUITE_GCMP ||
2888 key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
f5e28eac
JB		 2889 mvmsta = iwl_mvm_sta_from_mac80211(sta);
2890 ptk_pn = rcu_dereference_protected(
2891 mvmsta->ptk_pn[keyidx],
2892 lockdep_is_held(&mvm->mutex));
2893 RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
2894 if (ptk_pn)
2895 kfree_rcu(ptk_pn, rcu_head);
2896 }
2897
8ca151b5
JB		 2898 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2899 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2900 break;
2901 default:
2902 ret = -EINVAL;
2903 }
2904
2905 mutex_unlock(&mvm->mutex);
2906 return ret;
2907}
2908
2909static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2910 struct ieee80211_vif *vif,
2911 struct ieee80211_key_conf *keyconf,
2912 struct ieee80211_sta *sta,
2913 u32 iv32, u16 *phase1key)
2914{
2915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2916
5023d966
JB		 2917 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2918 return;
2919
8ca151b5
JB		 2920 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2921}
2922
2923
b112889c
AM		 2924static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2925 struct iwl_rx_packet *pkt, void *data)
2926{
2927 struct iwl_mvm *mvm =
2928 container_of(notif_wait, struct iwl_mvm, notif_wait);
2929 struct iwl_hs20_roc_res *resp;
2930 int resp_len = iwl_rx_packet_payload_len(pkt);
2931 struct iwl_mvm_time_event_data *te_data = data;
2932
2933 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2934 return true;
2935
2936 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2937 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2938 return true;
2939 }
2940
2941 resp = (void *)pkt->data;
2942
2943 IWL_DEBUG_TE(mvm,
2944 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2945 resp->status, resp->event_unique_id);
2946
2947 te_data->uid = le32_to_cpu(resp->event_unique_id);
2948 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2949 te_data->uid);
2950
2951 spin_lock_bh(&mvm->time_event_lock);
2952 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2953 spin_unlock_bh(&mvm->time_event_lock);
2954
2955 return true;
2956}
2957
dc28e12f
MG		 2958#define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2959#define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2960#define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2961#define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2962#define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
b112889c
AM		 2963static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2964 struct ieee80211_channel *channel,
2965 struct ieee80211_vif *vif,
2966 int duration)
2967{
2968 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2969 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2970 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 2971 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c 2972 struct iwl_notification_wait wait_time_event;
dc28e12f
MG		 2973 u32 dtim_interval = vif->bss_conf.dtim_period *
2974 vif->bss_conf.beacon_int;
2975 u32 req_dur, delay;
b112889c
AM		 2976 struct iwl_hs20_roc_req aux_roc_req = {
2977 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2978 .id_and_color =
2979 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2980 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2981 /* Set the channel info data */
57fbcce3 2982 .channel_info.band = (channel->band == NL80211_BAND_2GHZ) ?
b112889c
AM		 2983 PHY_BAND_24 : PHY_BAND_5,
2984 .channel_info.channel = channel->hw_value,
2985 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2986 /* Set the time and duration */
2987 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
b112889c
AM		 2988 };
2989
dc28e12f
MG		 2990 delay = AUX_ROC_MIN_DELAY;
2991 req_dur = MSEC_TO_TU(duration);
2992
2993 /*
2994 * If we are associated we want the delay time to be at least one
2995 * dtim interval so that the FW can wait until after the DTIM and
2996 * then start the time event, this will potentially allow us to
2997 * remain off-channel for the max duration.
2998 * Since we want to use almost a whole dtim interval we would also
2999 * like the delay to be for 2-3 dtim intervals, in case there are
3000 * other time events with higher priority.
3001 */
3002 if (vif->bss_conf.assoc) {
3003 delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3004 /* We cannot remain off-channel longer than the DTIM interval */
3005 if (dtim_interval <= req_dur) {
3006 req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3007 if (req_dur <= AUX_ROC_MIN_DURATION)
3008 req_dur = dtim_interval -
3009 AUX_ROC_MIN_SAFETY_BUFFER;
3010 }
3011 }
3012
3013 aux_roc_req.duration = cpu_to_le32(req_dur);
3014 aux_roc_req.apply_time_max_delay = cpu_to_le32(delay);
3015
3016 IWL_DEBUG_TE(mvm,
3017 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3018 channel->hw_value, req_dur, duration, delay,
3019 dtim_interval);
b112889c
AM		 3020 /* Set the node address */
3021 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3022
a6cc5163
MG		 3023 lockdep_assert_held(&mvm->mutex);
3024
3025 spin_lock_bh(&mvm->time_event_lock);
3026
3027 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3028 spin_unlock_bh(&mvm->time_event_lock);
3029 return -EIO;
3030 }
3031
b112889c
AM		 3032 te_data->vif = vif;
3033 te_data->duration = duration;
3034 te_data->id = HOT_SPOT_CMD;
3035
b112889c
AM		 3036 spin_unlock_bh(&mvm->time_event_lock);
3037
3038 /*
3039 * Use a notification wait, which really just processes the
3040 * command response and doesn't wait for anything, in order
3041 * to be able to process the response and get the UID inside
3042 * the RX path. Using CMD_WANT_SKB doesn't work because it
3043 * stores the buffer and then wakes up this thread, by which
3044 * time another notification (that the time event started)
3045 * might already be processed unsuccessfully.
3046 */
3047 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3048 time_event_response,
3049 ARRAY_SIZE(time_event_response),
3050 iwl_mvm_rx_aux_roc, te_data);
3051
3052 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3053 &aux_roc_req);
3054
3055 if (res) {
3056 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3057 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3058 goto out_clear_te;
3059 }
3060
3061 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3062 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3063 /* should never fail */
3064 WARN_ON_ONCE(res);
3065
3066 if (res) {
3067 out_clear_te:
3068 spin_lock_bh(&mvm->time_event_lock);
3069 iwl_mvm_te_clear_data(mvm, te_data);
3070 spin_unlock_bh(&mvm->time_event_lock);
3071 }
3072
3073 return res;
3074}
3075
8ca151b5
JB		 3076static int iwl_mvm_roc(struct ieee80211_hw *hw,
3077 struct ieee80211_vif *vif,
3078 struct ieee80211_channel *channel,
d339d5ca
IP		 3079 int duration,
3080 enum ieee80211_roc_type type)
8ca151b5
JB		 3081{
3082 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3083 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3084 struct cfg80211_chan_def chandef;
31d385ae
IP		 3085 struct iwl_mvm_phy_ctxt *phy_ctxt;
3086 int ret, i;
3087
3088 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3089 duration, type);
8ca151b5 3090
6ed13164
MG		 3091 flush_work(&mvm->roc_done_wk);
3092
a6cc5163
MG		 3093 mutex_lock(&mvm->mutex);
3094
b112889c
AM		 3095 switch (vif->type) {
3096 case NL80211_IFTYPE_STATION:
859d914c
JB		 3097 if (fw_has_capa(&mvm->fw->ucode_capa,
3098 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3099 /* Use aux roc framework (HS20) */
3100 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3101 vif, duration);
3102 goto out_unlock;
3103 }
3104 IWL_ERR(mvm, "hotspot not supported\n");
3105 ret = -EINVAL;
a6cc5163 3106 goto out_unlock;
b112889c
AM		 3107 case NL80211_IFTYPE_P2P_DEVICE:
3108 /* handle below */
3109 break;
3110 default:
3111 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3112 ret = -EINVAL;
3113 goto out_unlock;
8ca151b5
JB		 3114 }
3115
31d385ae
IP		 3116 for (i = 0; i < NUM_PHY_CTX; i++) {
3117 phy_ctxt = &mvm->phy_ctxts[i];
3118 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3119 continue;
3120
3121 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3122 /*
3123 * Unbind the P2P_DEVICE from the current PHY context,
3124 * and if the PHY context is not used remove it.
3125 */
3126 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3127 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3128 goto out_unlock;
3129
3130 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3131
3132 /* Bind the P2P_DEVICE to the current PHY Context */
3133 mvmvif->phy_ctxt = phy_ctxt;
3134
3135 ret = iwl_mvm_binding_add_vif(mvm, vif);
3136 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3137 goto out_unlock;
3138
3139 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3140 goto schedule_time_event;
3141 }
3142 }
3143
3144 /* Need to update the PHY context only if the ROC channel changed */
3145 if (channel == mvmvif->phy_ctxt->channel)
3146 goto schedule_time_event;
3147
8ca151b5 3148 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3149
31d385ae
IP		 3150 /*
3151 * Change the PHY context configuration as it is currently referenced
3152 * only by the P2P Device MAC
3153 */
3154 if (mvmvif->phy_ctxt->ref == 1) {
3155 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3156 &chandef, 1, 1);
3157 if (ret)
3158 goto out_unlock;
3159 } else {
3160 /*
3161 * The PHY context is shared with other MACs. Need to remove the
3162 * P2P Device from the binding, allocate an new PHY context and
3163 * create a new binding
3164 */
3165 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3166 if (!phy_ctxt) {
3167 ret = -ENOSPC;
3168 goto out_unlock;
3169 }
3170
3171 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3172 1, 1);
3173 if (ret) {
3174 IWL_ERR(mvm, "Failed to change PHY context\n");
3175 goto out_unlock;
3176 }
3177
3178 /* Unbind the P2P_DEVICE from the current PHY context */
3179 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3180 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3181 goto out_unlock;
3182
3183 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3184
3185 /* Bind the P2P_DEVICE to the new allocated PHY context */
3186 mvmvif->phy_ctxt = phy_ctxt;
3187
3188 ret = iwl_mvm_binding_add_vif(mvm, vif);
3189 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3190 goto out_unlock;
3191
3192 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3193 }
3194
3195schedule_time_event:
8ca151b5 3196 /* Schedule the time events */
e635c797 3197 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3198
31d385ae 3199out_unlock:
8ca151b5
JB		 3200 mutex_unlock(&mvm->mutex);
3201 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3202 return ret;
3203}
3204
3205static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3206{
3207 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3208
3209 IWL_DEBUG_MAC80211(mvm, "enter\n");
3210
3211 mutex_lock(&mvm->mutex);
bf5da87f 3212 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3213 mutex_unlock(&mvm->mutex);
3214
3215 IWL_DEBUG_MAC80211(mvm, "leave\n");
3216 return 0;
3217}
3218
b08c1d97
LC		 3219static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3220 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3221{
fe0f2de3
IP		 3222 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3223 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3224 int ret;
3225
b08c1d97
LC		 3226 lockdep_assert_held(&mvm->mutex);
3227
53a9d61e 3228 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3229
fe0f2de3
IP		 3230 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3231 if (!phy_ctxt) {
3232 ret = -ENOSPC;
3233 goto out;
3234 }
8ca151b5 3235
dcbc3e1a 3236 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3237 ctx->rx_chains_static,
3238 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3239 if (ret) {
3240 IWL_ERR(mvm, "Failed to add PHY context\n");
3241 goto out;
3242 }
3243
53a9d61e 3244 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3245 *phy_ctxt_id = phy_ctxt->id;
3246out:
b08c1d97
LC		 3247 return ret;
3248}
3249
3250static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3251 struct ieee80211_chanctx_conf *ctx)
3252{
3253 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3254 int ret;
3255
3256 mutex_lock(&mvm->mutex);
3257 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3258 mutex_unlock(&mvm->mutex);
b08c1d97 3259
8ca151b5
JB		 3260 return ret;
3261}
3262
b08c1d97
LC		 3263static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3264 struct ieee80211_chanctx_conf *ctx)
3265{
3266 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3267 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3268
3269 lockdep_assert_held(&mvm->mutex);
3270
3271 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3272}
3273
8ca151b5
JB		 3274static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3275 struct ieee80211_chanctx_conf *ctx)
3276{
3277 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3278
3279 mutex_lock(&mvm->mutex);
b08c1d97 3280 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3281 mutex_unlock(&mvm->mutex);
3282}
3283
3284static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3285 struct ieee80211_chanctx_conf *ctx,
3286 u32 changed)
3287{
3288 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3289 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3290 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3291
31d385ae
IP		 3292 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3293 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3294 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3295 IEEE80211_CHANCTX_CHANGE_RADAR |
3296 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3297 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3298 phy_ctxt->ref, changed))
3299 return;
3300
8ca151b5 3301 mutex_lock(&mvm->mutex);
4d66449a 3302 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3303 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3304 ctx->rx_chains_static,
3305 ctx->rx_chains_dynamic);
3306 mutex_unlock(&mvm->mutex);
3307}
3308
b08c1d97
LC		 3309static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3310 struct ieee80211_vif *vif,
f0c97783
LC		 3311 struct ieee80211_chanctx_conf *ctx,
3312 bool switching_chanctx)
8ca151b5 3313{
fe0f2de3
IP		 3314 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3315 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3316 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3317 int ret;
3318
b08c1d97 3319 lockdep_assert_held(&mvm->mutex);
8ca151b5 3320
fe0f2de3 3321 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3322
3323 switch (vif->type) {
3324 case NL80211_IFTYPE_AP:
4741dd04
LC		 3325 /* only needed if we're switching chanctx (i.e. during CSA) */
3326 if (switching_chanctx) {
bd3398e2
AO		 3327 mvmvif->ap_ibss_active = true;
3328 break;
3329 }
5023d966 3330 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3331 /*
3332 * The AP binding flow is handled as part of the start_ap flow
5023d966 3333 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3334 */
3335 ret = 0;
b08c1d97 3336 goto out;
8ca151b5 3337 case NL80211_IFTYPE_STATION:
2533edce 3338 break;
8ca151b5 3339 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3340 /* always disable PS when a monitor interface is active */
3341 mvmvif->ps_disabled = true;
8ca151b5
JB		 3342 break;
3343 default:
3344 ret = -EINVAL;
b08c1d97 3345 goto out;
8ca151b5
JB		 3346 }
3347
3348 ret = iwl_mvm_binding_add_vif(mvm, vif);
3349 if (ret)
b08c1d97 3350 goto out;
8ca151b5
JB		 3351
3352 /*
92d85562
AB		 3353 * Power state must be updated before quotas,
3354 * otherwise fw will complain.
3355 */
999609f1 3356 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3357
3358 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3359 * interfaces. For the other types, the bss_info changed flow
3360 * will handle quota settings.
3361 */
3362 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3363 mvmvif->monitor_active = true;
7754ae79 3364 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3365 if (ret)
3366 goto out_remove_binding;
0e39eb03
CRI		 3367
3368 ret = iwl_mvm_add_snif_sta(mvm, vif);
3369 if (ret)
3370 goto out_remove_binding;
3371
8ca151b5
JB		 3372 }
3373
bd3398e2 3374 /* Handle binding during CSA */
a57c688d 3375 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3376 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3377 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3378 }
3379
4741dd04 3380 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3381 u32 duration = 2 * vif->bss_conf.beacon_int;
3382
3383 /* iwl_mvm_protect_session() reads directly from the
3384 * device (the system time), so make sure it is
3385 * available.
3386 */
3387 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3388 if (ret)
3389 goto out_remove_binding;
3390
3391 /* Protect the session to make sure we hear the first
3392 * beacon on the new channel.
3393 */
3394 iwl_mvm_protect_session(mvm, vif, duration, duration,
3395 vif->bss_conf.beacon_int / 2,
3396 true);
3397
3398 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3399
7754ae79 3400 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3401 }
3402
b08c1d97 3403 goto out;
8ca151b5 3404
b08c1d97 3405out_remove_binding:
8ca151b5 3406 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3407 iwl_mvm_power_update_mac(mvm);
b08c1d97 3408out:
8ca151b5
JB		 3409 if (ret)
3410 mvmvif->phy_ctxt = NULL;
3411 return ret;
3412}
b08c1d97
LC		 3413static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3414 struct ieee80211_vif *vif,
3415 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3416{
3417 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3418 int ret;
8ca151b5
JB		 3419
3420 mutex_lock(&mvm->mutex);
f0c97783 3421 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3422 mutex_unlock(&mvm->mutex);
3423
3424 return ret;
3425}
3426
3427static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3428 struct ieee80211_vif *vif,
f0c97783
LC		 3429 struct ieee80211_chanctx_conf *ctx,
3430 bool switching_chanctx)
b08c1d97
LC		 3431{
3432 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3433 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3434
3435 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3436
3437 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3438
8ca151b5 3439 switch (vif->type) {
5023d966 3440 case NL80211_IFTYPE_ADHOC:
b08c1d97 3441 goto out;
8ca151b5 3442 case NL80211_IFTYPE_MONITOR:
1e1391ca 3443 mvmvif->monitor_active = false;
2533edce 3444 mvmvif->ps_disabled = false;
0e39eb03 3445 iwl_mvm_rm_snif_sta(mvm, vif);
8ca151b5 3446 break;
bd3398e2
AO		 3447 case NL80211_IFTYPE_AP:
3448 /* This part is triggered only during CSA */
4741dd04 3449 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3450 goto out;
bd3398e2 3451
7ef0aab6
AO		 3452 mvmvif->csa_countdown = false;
3453
003e5236
AO		 3454 /* Set CS bit on all the stations */
3455 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3456
3457 /* Save blocked iface, the timeout is set on the next beacon */
3458 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3459
bd3398e2 3460 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3461 break;
3462 case NL80211_IFTYPE_STATION:
3463 if (!switching_chanctx)
3464 break;
3465
3466 disabled_vif = vif;
3467
3dfd3a97 3468 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3469 break;
8ca151b5
JB		 3470 default:
3471 break;
3472 }
3473
7754ae79 3474 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3475 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3476
b08c1d97 3477out:
a11e144e 3478 mvmvif->phy_ctxt = NULL;
999609f1 3479 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3480}
3481
3482static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3483 struct ieee80211_vif *vif,
3484 struct ieee80211_chanctx_conf *ctx)
3485{
3486 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3487
3488 mutex_lock(&mvm->mutex);
f0c97783 3489 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3490 mutex_unlock(&mvm->mutex);
3491}
3492
50cc9574
LC		 3493static int
3494iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3495 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3496{
b08c1d97
LC		 3497 int ret;
3498
b08c1d97 3499 mutex_lock(&mvm->mutex);
f0c97783 3500 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3501 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3502
3503 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3504 if (ret) {
3505 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3506 goto out_reassign;
3507 }
3508
f0c97783
LC		 3509 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3510 true);
b08c1d97
LC		 3511 if (ret) {
3512 IWL_ERR(mvm,
3513 "failed to assign new_ctx during channel switch\n");
3514 goto out_remove;
3515 }
3516
f697267f
AN		 3517 /* we don't support TDLS during DCM - can be caused by channel switch */
3518 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3519 iwl_mvm_teardown_tdls_peers(mvm);
3520
b08c1d97
LC		 3521 goto out;
3522
3523out_remove:
3524 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3525
3526out_reassign:
6fd1fb63 3527 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3528 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3529 goto out_restart;
3530 }
3531
6fd1fb63
LC		 3532 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3533 true)) {
b08c1d97
LC		 3534 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3535 goto out_restart;
3536 }
3537
3538 goto out;
3539
3540out_restart:
3541 /* things keep failing, better restart the hw */
3542 iwl_mvm_nic_restart(mvm, false);
3543
3544out:
3545 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3546
3547 return ret;
3548}
3549
48a256e8
LC		 3550static int
3551iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3552 struct ieee80211_vif_chanctx_switch *vifs)
3553{
3554 int ret;
3555
3556 mutex_lock(&mvm->mutex);
3557 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3558
3559 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3560 true);
3561 if (ret) {
3562 IWL_ERR(mvm,
3563 "failed to assign new_ctx during channel switch\n");
3564 goto out_reassign;
3565 }
3566
3567 goto out;
3568
3569out_reassign:
3570 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3571 true)) {
3572 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3573 goto out_restart;
3574 }
3575
3576 goto out;
3577
3578out_restart:
3579 /* things keep failing, better restart the hw */
3580 iwl_mvm_nic_restart(mvm, false);
3581
3582out:
3583 mutex_unlock(&mvm->mutex);
3584
3585 return ret;
3586}
3587
50cc9574
LC		 3588static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3589 struct ieee80211_vif_chanctx_switch *vifs,
3590 int n_vifs,
3591 enum ieee80211_chanctx_switch_mode mode)
3592{
3593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3594 int ret;
3595
3596 /* we only support a single-vif right now */
3597 if (n_vifs > 1)
3598 return -EOPNOTSUPP;
3599
3600 switch (mode) {
3601 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3602 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3603 break;
3604 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3605 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3606 break;
3607 default:
3608 ret = -EOPNOTSUPP;
3609 break;
3610 }
3611
b08c1d97
LC		 3612 return ret;
3613}
3614
8ca151b5
JB		 3615static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3616 struct ieee80211_sta *sta,
3617 bool set)
3618{
3619 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3620 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3621
3622 if (!mvm_sta || !mvm_sta->vif) {
3623 IWL_ERR(mvm, "Station is not associated to a vif\n");
3624 return -EINVAL;
3625 }
3626
3627 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3628}
3629
507cadf2
DS		 3630#ifdef CONFIG_NL80211_TESTMODE
3631static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3632 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3633 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3634 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3635};
3636
3637static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3638 struct ieee80211_vif *vif,
3639 void *data, int len)
3640{
3641 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3642 int err;
3643 u32 noa_duration;
3644
3645 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3646 if (err)
3647 return err;
3648
3649 if (!tb[IWL_MVM_TM_ATTR_CMD])
3650 return -EINVAL;
3651
3652 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3653 case IWL_MVM_TM_CMD_SET_NOA:
3654 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3655 !vif->bss_conf.enable_beacon ||
3656 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3657 return -EINVAL;
3658
3659 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3660 if (noa_duration >= vif->bss_conf.beacon_int)
3661 return -EINVAL;
3662
3663 mvm->noa_duration = noa_duration;
3664 mvm->noa_vif = vif;
3665
7754ae79 3666 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3667 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3668 /* must be associated client vif - ignore authorized */
3669 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3670 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3671 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3672 return -EINVAL;
3673
3674 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3675 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3676 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3677 }
3678
3679 return -EOPNOTSUPP;
3680}
3681
3682static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3683 struct ieee80211_vif *vif,
3684 void *data, int len)
3685{
3686 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3687 int err;
3688
3689 mutex_lock(&mvm->mutex);
3690 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3691 mutex_unlock(&mvm->mutex);
3692
3693 return err;
3694}
3695#endif
3696
622e3f9b
LC		 3697static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3698 struct ieee80211_vif *vif,
3699 struct ieee80211_channel_switch *chsw)
3700{
3701 /* By implementing this operation, we prevent mac80211 from
3702 * starting its own channel switch timer, so that we can call
3703 * ieee80211_chswitch_done() ourselves at the right time
3704 * (which is when the absence time event starts).
3705 */
3706
3707 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3708 "dummy channel switch op\n");
3709}
3710
f028905c
LC		 3711static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3712 struct ieee80211_vif *vif,
3713 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3714{
3715 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3716 struct ieee80211_vif *csa_vif;
f6c34820 3717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3718 u32 apply_time;
f028905c 3719 int ret;
bd3398e2
AO		 3720
3721 mutex_lock(&mvm->mutex);
664322fa 3722
81d62d5a
JB		 3723 mvmvif->csa_failed = false;
3724
6b20d774 3725 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3726 chsw->chandef.center_freq1);
6b20d774 3727
21023b1e 3728 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3729
6b20d774
LC		 3730 switch (vif->type) {
3731 case NL80211_IFTYPE_AP:
3732 csa_vif =
3733 rcu_dereference_protected(mvm->csa_vif,
3734 lockdep_is_held(&mvm->mutex));
3735 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3736 "Another CSA is already in progress")) {
3737 ret = -EBUSY;
3738 goto out_unlock;
3739 }
3740
d3a108a4
AO		 3741 /* we still didn't unblock tx. prevent new CS meanwhile */
3742 if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
3743 lockdep_is_held(&mvm->mutex))) {
3744 ret = -EBUSY;
3745 goto out_unlock;
3746 }
3747
6b20d774 3748 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3749
7ef0aab6
AO		 3750 if (WARN_ONCE(mvmvif->csa_countdown,
3751 "Previous CSA countdown didn't complete")) {
3752 ret = -EBUSY;
3753 goto out_unlock;
3754 }
3755
d3a108a4
AO		 3756 mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
3757
6b20d774 3758 break;
dc88b4ba 3759 case NL80211_IFTYPE_STATION:
03098268
AE		 3760 if (mvmvif->lqm_active)
3761 iwl_mvm_send_lqm_cmd(vif,
3762 LQM_CMD_OPERATION_STOP_MEASUREMENT,
3763 0, 0);
3764
4500e133
LC		 3765 /* Schedule the time event to a bit before beacon 1,
3766 * to make sure we're in the new channel when the
3767 * GO/AP arrives.
3768 */
3769 apply_time = chsw->device_timestamp +
3770 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3771 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3772
3773 if (chsw->block_tx)
3774 iwl_mvm_csa_client_absent(mvm, vif);
3775
4500e133 3776 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3777 apply_time);
c6e0a3e0
LC		 3778 if (mvmvif->bf_data.bf_enabled) {
3779 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3780 if (ret)
3781 goto out_unlock;
3782 }
3783
dc88b4ba 3784 break;
6b20d774
LC		 3785 default:
3786 break;
3787 }
bd3398e2 3788
f6c34820
LC		 3789 mvmvif->ps_disabled = true;
3790
3791 ret = iwl_mvm_power_update_ps(mvm);
3792 if (ret)
3793 goto out_unlock;
f028905c 3794
e198f5e7
AN		 3795 /* we won't be on this channel any longer */
3796 iwl_mvm_teardown_tdls_peers(mvm);
3797
bd3398e2
AO		 3798out_unlock:
3799 mutex_unlock(&mvm->mutex);
f028905c
LC		 3800
3801 return ret;
bd3398e2
AO		 3802}
3803
f6c34820
LC		 3804static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3805 struct ieee80211_vif *vif)
3806{
3807 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3808 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3809 int ret;
3810
3811 mutex_lock(&mvm->mutex);
3812
81d62d5a
JB		 3813 if (mvmvif->csa_failed) {
3814 mvmvif->csa_failed = false;
3815 ret = -EIO;
3816 goto out_unlock;
3817 }
3818
a57c688d
LC		 3819 if (vif->type == NL80211_IFTYPE_STATION) {
3820 struct iwl_mvm_sta *mvmsta;
3821
3822 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3823 mvmvif->ap_sta_id);
3824
3825 if (WARN_ON(!mvmsta)) {
3826 ret = -EIO;
3827 goto out_unlock;
3828 }
3829
3830 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3831
3832 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3833
3834 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3835 if (ret)
3836 goto out_unlock;
686e7fe1
LC		 3837
3838 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3839 }
3840
f6c34820
LC		 3841 mvmvif->ps_disabled = false;
3842
3843 ret = iwl_mvm_power_update_ps(mvm);
3844
a57c688d 3845out_unlock:
f6c34820
LC		 3846 mutex_unlock(&mvm->mutex);
3847
3848 return ret;
3849}
3850
c5b0e7c0
EG		 3851static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3852 struct ieee80211_vif *vif, u32 queues, bool drop)
3853{
3854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3855 struct iwl_mvm_vif *mvmvif;
3856 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3857 struct ieee80211_sta *sta;
3858 int i;
3859 u32 msk = 0;
c5b0e7c0
EG		 3860
3861 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3862 return;
3863
24afba76
LK		 3864 /* Make sure we're done with the deferred traffic before flushing */
3865 if (iwl_mvm_is_dqa_supported(mvm))
3866 flush_work(&mvm->add_stream_wk);
3867
c5b0e7c0
EG		 3868 mutex_lock(&mvm->mutex);
3869 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3870
a0f6bf2a
AN		 3871 /* flush the AP-station and all TDLS peers */
3872 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3873 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3874 lockdep_is_held(&mvm->mutex));
3875 if (IS_ERR_OR_NULL(sta))
3876 continue;
3877
3878 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3879 if (mvmsta->vif != vif)
3880 continue;
3881
3882 /* make sure only TDLS peers or the AP are flushed */
3883 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3884
3885 msk |= mvmsta->tfd_queue_msk;
480acbce 3886 }
c5b0e7c0 3887
6d440b25 3888 if (drop) {
5888a40c 3889 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3890 IWL_ERR(mvm, "flush request fail\n");
3891 mutex_unlock(&mvm->mutex);
3892 } else {
3893 mutex_unlock(&mvm->mutex);
4e6c48e0 3894
6d440b25
EG		 3895 /* this can take a while, and we may need/want other operations
3896 * to succeed while doing this, so do it without the mutex held
3897 */
3898 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3899 }
c5b0e7c0
EG		 3900}
3901
91a8bcde
JB		 3902static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3903 struct survey_info *survey)
3904{
3905 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3906 int ret;
3907
3908 memset(survey, 0, sizeof(*survey));
3909
3910 /* only support global statistics right now */
3911 if (idx != 0)
3912 return -ENOENT;
3913
280a3efa
JB		 3914 if (!fw_has_capa(&mvm->fw->ucode_capa,
3915 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
91a8bcde
JB		 3916 return -ENOENT;
3917
3918 mutex_lock(&mvm->mutex);
3919
3920 if (mvm->ucode_loaded) {
33cef925 3921 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3922 if (ret)
3923 goto out;
3924 }
3925
3926 survey->filled = SURVEY_INFO_TIME |
3927 SURVEY_INFO_TIME_RX |
3928 SURVEY_INFO_TIME_TX |
3929 SURVEY_INFO_TIME_SCAN;
3930 survey->time = mvm->accu_radio_stats.on_time_rf +
3931 mvm->radio_stats.on_time_rf;
3932 do_div(survey->time, USEC_PER_MSEC);
3933
3934 survey->time_rx = mvm->accu_radio_stats.rx_time +
3935 mvm->radio_stats.rx_time;
3936 do_div(survey->time_rx, USEC_PER_MSEC);
3937
3938 survey->time_tx = mvm->accu_radio_stats.tx_time +
3939 mvm->radio_stats.tx_time;
3940 do_div(survey->time_tx, USEC_PER_MSEC);
3941
3942 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3943 mvm->radio_stats.on_time_scan;
3944 do_div(survey->time_scan, USEC_PER_MSEC);
3945
10a7c028 3946 ret = 0;
91a8bcde
JB		 3947 out:
3948 mutex_unlock(&mvm->mutex);
3949 return ret;
3950}
3951
33cef925
JB		 3952static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3953 struct ieee80211_vif *vif,
3954 struct ieee80211_sta *sta,
3955 struct station_info *sinfo)
3956{
3957 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3958 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3959 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3960
988b5968
SS		 3961 if (mvmsta->avg_energy) {
3962 sinfo->signal_avg = mvmsta->avg_energy;
3963 sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL_AVG);
3964 }
3965
280a3efa
JB		 3966 if (!fw_has_capa(&mvm->fw->ucode_capa,
3967 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3968 return;
3969
3970 /* if beacon filtering isn't on mac80211 does it anyway */
3971 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3972 return;
3973
3974 if (!vif->bss_conf.assoc)
3975 return;
3976
3977 mutex_lock(&mvm->mutex);
3978
3979 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3980 goto unlock;
3981
3982 if (iwl_mvm_request_statistics(mvm, false))
3983 goto unlock;
3984
3985 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3986 mvmvif->beacon_stats.accu_num_beacons;
3987 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3988 if (mvmvif->beacon_stats.avg_signal) {
3989 /* firmware only reports a value after RXing a few beacons */
3990 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3991 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3992 }
3993 unlock:
3994 mutex_unlock(&mvm->mutex);
3995}
3996
4203263d
EG		 3997static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3998 struct ieee80211_vif *vif,
3999 const struct ieee80211_event *event)
d42f5350 4000{
5d4f929e 4001#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 4002 do { \
4003 if ((_cnt) && --(_cnt)) \
4004 break; \
5d4f929e 4005 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 4006 } while (0)
4007
d42f5350
EG		 4008 struct iwl_fw_dbg_trigger_tlv *trig;
4009 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4010
4011 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4012 return;
4013
d42f5350
EG		 4014 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4015 trig_mlme = (void *)trig->data;
4016 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4017 return;
4018
d42f5350
EG		 4019 if (event->u.mlme.data == ASSOC_EVENT) {
4020 if (event->u.mlme.status == MLME_DENIED)
4021 CHECK_MLME_TRIGGER(mvm, trig, buf,
4022 trig_mlme->stop_assoc_denied,
4023 "DENIED ASSOC: reason %d",
4024 event->u.mlme.reason);
4025 else if (event->u.mlme.status == MLME_TIMEOUT)
4026 CHECK_MLME_TRIGGER(mvm, trig, buf,
4027 trig_mlme->stop_assoc_timeout,
4028 "ASSOC TIMEOUT");
4029 } else if (event->u.mlme.data == AUTH_EVENT) {
4030 if (event->u.mlme.status == MLME_DENIED)
4031 CHECK_MLME_TRIGGER(mvm, trig, buf,
4032 trig_mlme->stop_auth_denied,
4033 "DENIED AUTH: reason %d",
4034 event->u.mlme.reason);
4035 else if (event->u.mlme.status == MLME_TIMEOUT)
4036 CHECK_MLME_TRIGGER(mvm, trig, buf,
4037 trig_mlme->stop_auth_timeout,
4038 "AUTH TIMEOUT");
4039 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4040 CHECK_MLME_TRIGGER(mvm, trig, buf,
4041 trig_mlme->stop_rx_deauth,
4042 "DEAUTH RX %d", event->u.mlme.reason);
4043 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4044 CHECK_MLME_TRIGGER(mvm, trig, buf,
4045 trig_mlme->stop_tx_deauth,
4046 "DEAUTH TX %d", event->u.mlme.reason);
4047 }
4048#undef CHECK_MLME_TRIGGER
4049}
4050
4203263d
EG		 4051static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4052 struct ieee80211_vif *vif,
4053 const struct ieee80211_event *event)
4054{
4055 struct iwl_fw_dbg_trigger_tlv *trig;
4056 struct iwl_fw_dbg_trigger_ba *ba_trig;
4057
4058 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4059 return;
4060
4061 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4062 ba_trig = (void *)trig->data;
4063 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4064 return;
4065
4066 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4067 return;
4068
4069 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4070 "BAR received from %pM, tid %d, ssn %d",
4071 event->u.ba.sta->addr, event->u.ba.tid,
4072 event->u.ba.ssn);
4073}
4074
4075static void
4076iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4077 struct ieee80211_vif *vif,
4078 const struct ieee80211_event *event)
4079{
4080 struct iwl_fw_dbg_trigger_tlv *trig;
4081 struct iwl_fw_dbg_trigger_ba *ba_trig;
4082
4083 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4084 return;
4085
4086 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4087 ba_trig = (void *)trig->data;
4088 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4089 return;
4090
4091 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4092 return;
4093
4094 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4095 "Frame from %pM timed out, tid %d",
4096 event->u.ba.sta->addr, event->u.ba.tid);
4097}
4098
4099static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4100 struct ieee80211_vif *vif,
4101 const struct ieee80211_event *event)
4102{
4103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4104
4105 switch (event->type) {
4106 case MLME_EVENT:
4107 iwl_mvm_event_mlme_callback(mvm, vif, event);
4108 break;
4109 case BAR_RX_EVENT:
4110 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4111 break;
4112 case BA_FRAME_TIMEOUT:
4113 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4114 break;
4115 default:
4116 break;
4117 }
4118}
4119
d0ff5d22
SS		 4120void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
4121 struct iwl_mvm_internal_rxq_notif *notif,
4122 u32 size)
0636b938 4123{
0636b938
SS		 4124 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq);
4125 u32 qmask = BIT(mvm->trans->num_rx_queues) - 1;
4126 int ret;
4127
4128 lockdep_assert_held(&mvm->mutex);
4129
4130 if (!iwl_mvm_has_new_rx_api(mvm))
4131 return;
4132
d0ff5d22
SS		 4133 notif->cookie = mvm->queue_sync_cookie;
4134
4135 if (notif->sync)
4136 atomic_set(&mvm->queue_sync_counter,
4137 mvm->trans->num_rx_queues);
0636b938 4138
d0ff5d22 4139 ret = iwl_mvm_notify_rx_queue(mvm, qmask, (u8 *)notif, size);
0636b938
SS		 4140 if (ret) {
4141 IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
4142 goto out;
4143 }
d0ff5d22
SS		 4144
4145 if (notif->sync)
4146 ret = wait_event_timeout(notif_waitq,
4147 atomic_read(&mvm->queue_sync_counter) == 0,
4148 HZ);
0636b938
SS		 4149 WARN_ON_ONCE(!ret);
4150
4151out:
4152 atomic_set(&mvm->queue_sync_counter, 0);
4153 mvm->queue_sync_cookie++;
4154}
4155
4156static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
4157{
4158 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
d0ff5d22
SS		 4159 struct iwl_mvm_internal_rxq_notif data = {
4160 .type = IWL_MVM_RXQ_EMPTY,
4161 .sync = 1,
4162 };
0636b938
SS		 4163
4164 mutex_lock(&mvm->mutex);
d0ff5d22 4165 iwl_mvm_sync_rx_queues_internal(mvm, &data, sizeof(data));
0636b938
SS		 4166 mutex_unlock(&mvm->mutex);
4167}
4168
e5209263 4169const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4170 .tx = iwl_mvm_mac_tx,
4171 .ampdu_action = iwl_mvm_mac_ampdu_action,
4172 .start = iwl_mvm_mac_start,
cf2c92d8 4173 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4174 .stop = iwl_mvm_mac_stop,
4175 .add_interface = iwl_mvm_mac_add_interface,
4176 .remove_interface = iwl_mvm_mac_remove_interface,
4177 .config = iwl_mvm_mac_config,
e59647ea 4178 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4179 .configure_filter = iwl_mvm_configure_filter,
effd1929 4180 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4181 .bss_info_changed = iwl_mvm_bss_info_changed,
4182 .hw_scan = iwl_mvm_mac_hw_scan,
4183 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4184 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4185 .sta_state = iwl_mvm_mac_sta_state,
4186 .sta_notify = iwl_mvm_mac_sta_notify,
4187 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4188 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4189 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4190 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4191 .conf_tx = iwl_mvm_mac_conf_tx,
4192 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4193 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4194 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4195 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4196 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4197 .set_key = iwl_mvm_mac_set_key,
4198 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4199 .remain_on_channel = iwl_mvm_roc,
4200 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4201 .add_chanctx = iwl_mvm_add_chanctx,
4202 .remove_chanctx = iwl_mvm_remove_chanctx,
4203 .change_chanctx = iwl_mvm_change_chanctx,
4204 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4205 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4206 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4207
5023d966
JB		 4208 .start_ap = iwl_mvm_start_ap_ibss,
4209 .stop_ap = iwl_mvm_stop_ap_ibss,
4210 .join_ibss = iwl_mvm_start_ap_ibss,
4211 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4212
4213 .set_tim = iwl_mvm_set_tim,
4214
622e3f9b 4215 .channel_switch = iwl_mvm_channel_switch,
f028905c 4216 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4217 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4218
1d3c3f63
AN		 4219 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4220 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4221 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4222
d42f5350
EG		 4223 .event_callback = iwl_mvm_mac_event_callback,
4224
0636b938
SS		 4225 .sync_rx_queues = iwl_mvm_sync_rx_queues,
4226
507cadf2
DS		 4227 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4228
8ca151b5
JB		 4229#ifdef CONFIG_PM_SLEEP
4230 /* look at d3.c */
4231 .suspend = iwl_mvm_suspend,
4232 .resume = iwl_mvm_resume,
4233 .set_wakeup = iwl_mvm_set_wakeup,
4234 .set_rekey_data = iwl_mvm_set_rekey_data,
4235#if IS_ENABLED(CONFIG_IPV6)
4236 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4237#endif
4238 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4239#endif
91a8bcde 4240 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4241 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4242};
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