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iwlwifi: mvm: add framework for triggers for fw dump
[thirdparty/linux.git] / drivers / net / wireless / 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
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
83#include "fw-api-scan.h"
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"
363039be 88#include "iwl-csr.h"
8ca151b5
JB		 89
90static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
91 {
92 .max = 1,
8eb38710 93 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 94 },
3c15a0fb
JB		 95 {
96 .max = 1,
8eb38710
IP		 97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 99 BIT(NL80211_IFTYPE_P2P_GO),
100 },
101 {
102 .max = 1,
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
104 },
8ca151b5
JB		 105};
106
107static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
108 {
2624a5ca 109 .num_different_channels = 2,
8ca151b5
JB		 110 .max_interfaces = 3,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
113 },
114};
115
f0c2646a
JB		 116#ifdef CONFIG_PM_SLEEP
117static const struct nl80211_wowlan_tcp_data_token_feature
118iwl_mvm_wowlan_tcp_token_feature = {
119 .min_len = 0,
120 .max_len = 255,
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
122};
123
124static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
135 .seq = true,
136};
137#endif
138
77736923 139#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 140/*
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
147 * be skipped.
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
150 */
151enum {
152 BC_FILTER_MAGIC_NONE = 0,
153 BC_FILTER_MAGIC_IP,
154 BC_FILTER_MAGIC_MAC,
155};
156
77736923
EP		 157static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
158 {
159 /* arp */
160 .discard = 0,
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
162 .attrs = {
163 {
164 /* frame type - arp, hw type - ethernet */
165 .offset_type =
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
170 },
2ee8f021
EP		 171 {
172 /* arp dest ip */
173 .offset_type =
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
178 ETH_ALEN,
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
182 },
183 },
184 },
185 {
186 /* dhcp offer bcast */
187 .discard = 0,
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
189 .attrs = {
190 {
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
196 },
197 {
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
200 .offset = 38,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
204 },
77736923
EP		 205 },
206 },
207 /* last filter must be empty */
208 {},
209};
210#endif
211
7498cf4c
EP		 212void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
213{
7bb426ea 214 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 215 return;
216
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 221 iwl_trans_ref(mvm->trans);
222}
223
224void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
225{
7bb426ea 226 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 227 return;
228
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 233 iwl_trans_unref(mvm->trans);
234}
235
576eeee9
EP		 236static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
7498cf4c 238{
576eeee9 239 int i, j;
7498cf4c 240
7bb426ea 241 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 242 return;
243
576eeee9
EP		 244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 247 continue;
248
576eeee9
EP		 249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
250 i, mvm->refs[i]);
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
253 mvm->refs[i] = 0;
7498cf4c 254 }
576eeee9 255 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 256}
257
f4cf8680
EP		 258bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
259{
260 int i;
261 bool taken = false;
262
263 if (!iwl_mvm_is_d0i3_supported(mvm))
264 return true;
265
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
268 if (mvm->refs[i]) {
269 taken = true;
270 break;
271 }
272 }
273 spin_unlock_bh(&mvm->refs_lock);
274
275 return taken;
276}
277
576eeee9 278int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 279{
280 iwl_mvm_ref(mvm, ref_type);
281
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
284 HZ)) {
285 WARN_ON_ONCE(1);
286 iwl_mvm_unref(mvm, ref_type);
287 return -EIO;
288 }
289
290 return 0;
291}
292
fe0f2de3
IP		 293static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
294{
295 int i;
296
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
301 }
302}
303
8ca151b5
JB		 304int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
305{
306 struct ieee80211_hw *hw = mvm->hw;
831e85f3 307 int num_mac, ret, i;
8ca151b5
JB		 308
309 /* Tell mac80211 our characteristics */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_SPECTRUM_MGMT |
312 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
313 IEEE80211_HW_QUEUE_CONTROL |
314 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 315 IEEE80211_HW_SUPPORTS_PS |
316 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 317 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 318 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 319 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 320 IEEE80211_HW_CHANCTX_STA_CSA |
321 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 322
19e737c9 323 hw->queues = mvm->first_agg_queue;
398e8c6c 324 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 325 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
326 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 327 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
328 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 329 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 330 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
331 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 332
333 /*
334 * Enable 11w if advertised by firmware and software crypto
335 * is not enabled (as the firmware will interpret some mgmt
336 * packets, so enabling it with software crypto isn't safe)
337 */
338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
339 !iwlwifi_mod_params.sw_crypto)
340 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
341
1f940386
LC		 342 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
343 hw->wiphy->features |=
344 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
345 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fb98be5e 346
8ca151b5
JB		 347 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
348 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 349 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 350
351 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 352 BIT(NL80211_IFTYPE_P2P_CLIENT) |
353 BIT(NL80211_IFTYPE_AP) |
354 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 355 BIT(NL80211_IFTYPE_P2P_DEVICE) |
356 BIT(NL80211_IFTYPE_ADHOC);
5023d966 357
a2f73b6c
LR		 358 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
359 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
360 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 361
3e56eadf
JB		 362 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
363 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
364
94bbed72 365 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 366
8ca151b5
JB		 367 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
368 hw->wiphy->n_iface_combinations =
369 ARRAY_SIZE(iwl_mvm_iface_combinations);
370
c451e6d4 371 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 372 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 373 /* we can compensate an offset of up to 3 channels = 15 MHz */
374 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 375
376 /* Extract MAC address */
377 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
378 hw->wiphy->addresses = mvm->addresses;
379 hw->wiphy->n_addresses = 1;
831e85f3
IP		 380
381 /* Extract additional MAC addresses if available */
382 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
383 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
384
385 for (i = 1; i < num_mac; i++) {
386 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 387 ETH_ALEN);
831e85f3 388 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 389 hw->wiphy->n_addresses++;
390 }
391
fe0f2de3
IP		 392 iwl_mvm_reset_phy_ctxts(mvm);
393
48849a41 394 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 395
8ca151b5
JB		 396 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
397
398 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
399 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
400 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 401 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 402 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
403 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
404
3d44eebf
ES		 405 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
406 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
407 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
408 }
409
8ca151b5
JB		 410 hw->wiphy->hw_version = mvm->trans->hw_id;
411
ade50652 412 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 413 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
414 else
415 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
416
6efaaf33
EG		 417 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
418 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
419 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
420 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
421 /* we create the 802.11 header and zero length SSID IE. */
422 hw->wiphy->max_sched_scan_ie_len =
423 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
424 }
35a000b7 425
8ca151b5 426 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 427 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 428 NL80211_FEATURE_P2P_GO_OPPPS |
429 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 430 NL80211_FEATURE_STATIC_SMPS |
431 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 432
f1daa00e
AO		 433 if (mvm->fw->ucode_capa.capa[0] &
434 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
435 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 436 if (mvm->fw->ucode_capa.capa[0] &
437 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
438 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 439
73897bd1
AO		 440 if (mvm->fw->ucode_capa.capa[0] &
441 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
442 hw->wiphy->features |=
443 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
444
445 if (mvm->fw->ucode_capa.capa[0] &
446 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
447 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
448
8ca151b5
JB		 449 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
450
e36e5433 451 /* currently FW API supports only one optional cipher scheme */
9ddca860 452 if (mvm->fw->cs[0].cipher) {
e36e5433 453 mvm->hw->n_cipher_schemes = 1;
9ddca860 454 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 455 }
456
8ca151b5 457#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 458 if (iwl_mvm_is_d0i3_supported(mvm) &&
459 device_can_wakeup(mvm->trans->dev)) {
460 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
461 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 462 }
463
464 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 465 mvm->trans->ops->d3_suspend &&
466 mvm->trans->ops->d3_resume &&
467 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 468 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
469 WIPHY_WOWLAN_DISCONNECT |
470 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
471 WIPHY_WOWLAN_RFKILL_RELEASE |
472 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 473 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 474 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
475 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
476 WIPHY_WOWLAN_4WAY_HANDSHAKE;
477
478 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
479 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
480 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 481 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 482 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
483 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 484 }
485#endif
486
77736923
EP		 487#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
488 /* assign default bcast filtering configuration */
489 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
490#endif
491
8ca151b5
JB		 492 ret = iwl_mvm_leds_init(mvm);
493 if (ret)
494 return ret;
495
d8f1c515
AN		 496 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
497 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
498 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
499 }
500
1d3c3f63
AN		 501 if (mvm->fw->ucode_capa.capa[0] &
502 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
503 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
504 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
505 }
506
b7327d89
EG		 507 ret = ieee80211_register_hw(mvm->hw);
508 if (ret)
509 iwl_mvm_leds_exit(mvm);
510
511 return ret;
8ca151b5
JB		 512}
513
b2492501
AN		 514static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
515 struct ieee80211_sta *sta,
516 struct sk_buff *skb)
517{
518 struct iwl_mvm_sta *mvmsta;
519 bool defer = false;
520
521 /*
522 * double check the IN_D0I3 flag both before and after
523 * taking the spinlock, in order to prevent taking
524 * the spinlock when not needed.
525 */
526 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
527 return false;
528
529 spin_lock(&mvm->d0i3_tx_lock);
530 /*
531 * testing the flag again ensures the skb dequeue
532 * loop (on d0i3 exit) hasn't run yet.
533 */
534 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
535 goto out;
536
537 mvmsta = iwl_mvm_sta_from_mac80211(sta);
538 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
539 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
540 goto out;
541
542 __skb_queue_tail(&mvm->d0i3_tx, skb);
543 ieee80211_stop_queues(mvm->hw);
544
545 /* trigger wakeup */
546 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
547 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
548
549 defer = true;
550out:
551 spin_unlock(&mvm->d0i3_tx_lock);
552 return defer;
553}
554
8ca151b5
JB		 555static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
556 struct ieee80211_tx_control *control,
557 struct sk_buff *skb)
558{
559 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 560 struct ieee80211_sta *sta = control->sta;
561 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
562 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 563
9ee718aa
EL		 564 if (iwl_mvm_is_radio_killed(mvm)) {
565 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 566 goto drop;
567 }
568
398e8c6c 569 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 570 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
571 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 572 goto drop;
573
3e56eadf
JB		 574 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
575 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
576 ieee80211_is_mgmt(hdr->frame_control) &&
577 !ieee80211_is_deauth(hdr->frame_control) &&
578 !ieee80211_is_disassoc(hdr->frame_control) &&
579 !ieee80211_is_action(hdr->frame_control)))
580 sta = NULL;
581
582 if (sta) {
b2492501
AN		 583 if (iwl_mvm_defer_tx(mvm, sta, skb))
584 return;
3e56eadf 585 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 586 goto drop;
587 return;
588 }
589
590 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
591 goto drop;
592 return;
593 drop:
594 ieee80211_free_txskb(hw, skb);
595}
596
205e2210
EG		 597static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
598{
599 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
600 return false;
601 return true;
602}
603
604static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
605{
606 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
607 return false;
608 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
609 return true;
610
611 /* enabled by default */
612 return true;
613}
614
8ca151b5
JB		 615static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
616 struct ieee80211_vif *vif,
617 enum ieee80211_ampdu_mlme_action action,
618 struct ieee80211_sta *sta, u16 tid,
619 u16 *ssn, u8 buf_size)
620{
621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
622 int ret;
b2492501 623 bool tx_agg_ref = false;
8ca151b5
JB		 624
625 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
626 sta->addr, tid, action);
627
628 if (!(mvm->nvm_data->sku_cap_11n_enable))
629 return -EACCES;
630
b2492501 631 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 632 switch (action) {
633 case IEEE80211_AMPDU_TX_START:
634 case IEEE80211_AMPDU_TX_STOP_CONT:
635 case IEEE80211_AMPDU_TX_STOP_FLUSH:
636 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
637 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 638 /*
9256c205
EP		 639 * for tx start, wait synchronously until D0i3 exit to
640 * get the correct sequence number for the tid.
641 * additionally, some other ampdu actions use direct
642 * target access, which is not handled automatically
643 * by the trans layer (unlike commands), so wait for
644 * d0i3 exit in these cases as well.
b2492501 645 */
d40fc489
GG		 646 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
647 if (ret)
648 return ret;
649
650 tx_agg_ref = true;
9256c205
EP		 651 break;
652 default:
653 break;
b2492501
AN		 654 }
655
8ca151b5
JB		 656 mutex_lock(&mvm->mutex);
657
658 switch (action) {
659 case IEEE80211_AMPDU_RX_START:
205e2210 660 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 661 ret = -EINVAL;
662 break;
663 }
664 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
665 break;
666 case IEEE80211_AMPDU_RX_STOP:
667 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
668 break;
669 case IEEE80211_AMPDU_TX_START:
205e2210 670 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 671 ret = -EINVAL;
672 break;
673 }
8ca151b5
JB		 674 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
675 break;
676 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 677 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
678 break;
8ca151b5
JB		 679 case IEEE80211_AMPDU_TX_STOP_FLUSH:
680 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 681 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 682 break;
683 case IEEE80211_AMPDU_TX_OPERATIONAL:
684 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
685 break;
686 default:
687 WARN_ON_ONCE(1);
688 ret = -EINVAL;
689 break;
690 }
691 mutex_unlock(&mvm->mutex);
692
b2492501
AN		 693 /*
694 * If the tid is marked as started, we won't use it for offloaded
695 * traffic on the next D0i3 entry. It's safe to unref.
696 */
697 if (tx_agg_ref)
698 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
699
8ca151b5
JB		 700 return ret;
701}
702
703static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
704 struct ieee80211_vif *vif)
705{
706 struct iwl_mvm *mvm = data;
707 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
708
709 mvmvif->uploaded = false;
710 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
711
8ca151b5
JB		 712 spin_lock_bh(&mvm->time_event_lock);
713 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
714 spin_unlock_bh(&mvm->time_event_lock);
715
fe0f2de3 716 mvmvif->phy_ctxt = NULL;
8a275bad 717 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 718}
719
aadede6e
JB		 720static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
721 const void *data, size_t datalen)
722{
723 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
724 ssize_t bytes_read;
725 ssize_t bytes_read_trans;
726
727 if (offset < dump_ptrs->op_mode_len) {
728 bytes_read = min_t(ssize_t, count,
729 dump_ptrs->op_mode_len - offset);
730 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
731 bytes_read);
732 offset += bytes_read;
733 count -= bytes_read;
734
735 if (count == 0)
736 return bytes_read;
737 } else {
738 bytes_read = 0;
739 }
740
741 if (!dump_ptrs->trans_ptr)
742 return bytes_read;
743
744 offset -= dump_ptrs->op_mode_len;
745 bytes_read_trans = min_t(ssize_t, count,
746 dump_ptrs->trans_ptr->len - offset);
747 memcpy(buffer + bytes_read,
748 (u8 *)dump_ptrs->trans_ptr->data + offset,
749 bytes_read_trans);
750
751 return bytes_read + bytes_read_trans;
752}
753
754static void iwl_mvm_free_coredump(const void *data)
755{
756 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
757
758 vfree(fw_error_dump->op_mode_ptr);
759 vfree(fw_error_dump->trans_ptr);
760 kfree(fw_error_dump);
761}
762
04fd2c28
LK		 763static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
764 struct iwl_fw_error_dump_data **dump_data)
765{
766 struct iwl_fw_error_dump_fifo *fifo_hdr;
767 u32 *fifo_data;
768 u32 fifo_len;
769 unsigned long flags;
770 int i, j;
771
772 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
773 return;
774
775 /* Pull RXF data from all RXFs */
776 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
777 /*
778 * Keep aside the additional offset that might be needed for
779 * next RXF
780 */
781 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
782
783 fifo_hdr = (void *)(*dump_data)->data;
784 fifo_data = (void *)fifo_hdr->data;
785 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
786
787 /* No need to try to read the data if the length is 0 */
788 if (fifo_len == 0)
789 continue;
790
791 /* Add a TLV for the RXF */
792 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
793 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
794
795 fifo_hdr->fifo_num = cpu_to_le32(i);
796 fifo_hdr->available_bytes =
797 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
798 RXF_RD_D_SPACE +
799 offset_diff));
800 fifo_hdr->wr_ptr =
801 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
802 RXF_RD_WR_PTR +
803 offset_diff));
804 fifo_hdr->rd_ptr =
805 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
806 RXF_RD_RD_PTR +
807 offset_diff));
808 fifo_hdr->fence_ptr =
809 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
810 RXF_RD_FENCE_PTR +
811 offset_diff));
812 fifo_hdr->fence_mode =
813 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
814 RXF_SET_FENCE_MODE +
815 offset_diff));
816
817 /* Lock fence */
818 iwl_trans_write_prph(mvm->trans,
819 RXF_SET_FENCE_MODE + offset_diff, 0x1);
820 /* Set fence pointer to the same place like WR pointer */
821 iwl_trans_write_prph(mvm->trans,
822 RXF_LD_WR2FENCE + offset_diff, 0x1);
823 /* Set fence offset */
824 iwl_trans_write_prph(mvm->trans,
825 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
826 0x0);
827
828 /* Read FIFO */
829 fifo_len /= sizeof(u32); /* Size in DWORDS */
830 for (j = 0; j < fifo_len; j++)
831 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
832 RXF_FIFO_RD_FENCE_INC +
833 offset_diff);
834 *dump_data = iwl_fw_error_next_data(*dump_data);
835 }
836
837 /* Pull TXF data from all TXFs */
838 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
839 /* Mark the number of TXF we're pulling now */
840 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
841
842 fifo_hdr = (void *)(*dump_data)->data;
843 fifo_data = (void *)fifo_hdr->data;
844 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
845
846 /* No need to try to read the data if the length is 0 */
847 if (fifo_len == 0)
848 continue;
849
850 /* Add a TLV for the FIFO */
851 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
852 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
853
854 fifo_hdr->fifo_num = cpu_to_le32(i);
855 fifo_hdr->available_bytes =
856 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
857 TXF_FIFO_ITEM_CNT));
858 fifo_hdr->wr_ptr =
859 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
860 TXF_WR_PTR));
861 fifo_hdr->rd_ptr =
862 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
863 TXF_RD_PTR));
864 fifo_hdr->fence_ptr =
865 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
866 TXF_FENCE_PTR));
867 fifo_hdr->fence_mode =
868 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
869 TXF_LOCK_FENCE));
870
871 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
872 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
873 TXF_WR_PTR);
874
875 /* Dummy-read to advance the read pointer to the head */
876 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
877
878 /* Read FIFO */
879 fifo_len /= sizeof(u32); /* Size in DWORDS */
880 for (j = 0; j < fifo_len; j++)
881 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
882 TXF_READ_MODIFY_DATA);
883 *dump_data = iwl_fw_error_next_data(*dump_data);
884 }
885
886 iwl_trans_release_nic_access(mvm->trans, &flags);
887}
888
4bfa47f3 889void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 890{
891 struct iwl_fw_error_dump_file *dump_file;
892 struct iwl_fw_error_dump_data *dump_data;
893 struct iwl_fw_error_dump_info *dump_info;
a549b296 894 struct iwl_fw_error_dump_mem *dump_mem;
48eb7b34 895 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 896 u32 sram_len, sram_ofs;
04fd2c28 897 u32 file_len, fifo_data_len = 0;
addfaada 898 u32 smem_len = mvm->cfg->smem_len;
86138324 899 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 900
901 lockdep_assert_held(&mvm->mutex);
902
addfaada 903 /* W/A for 8000 HW family A-step */
86138324
IY		 904 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
905 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
906 if (smem_len)
907 smem_len = 0x38000;
908
909 if (sram2_len)
910 sram2_len = 0x10000;
911 }
addfaada 912
aadede6e 913 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 914 if (!fw_error_dump)
915 return;
916
f53bf4c7
LK		 917 /* SRAM - include stack CCM if driver knows the values for it */
918 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
919 const struct fw_img *img;
920
921 img = &mvm->fw->img[mvm->cur_ucode];
922 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
923 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
924 } else {
925 sram_ofs = mvm->cfg->dccm_offset;
926 sram_len = mvm->cfg->dccm_len;
927 }
655e6d6d 928
04fd2c28
LK		 929 /* reading RXF/TXF sizes */
930 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
931 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
932 int i;
933
934 fifo_data_len = 0;
935
936 /* Count RXF size */
937 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
938 if (!mem_cfg->rxfifo_size[i])
939 continue;
940
941 /* Add header info */
942 fifo_data_len += mem_cfg->rxfifo_size[i] +
943 sizeof(*dump_data) +
944 sizeof(struct iwl_fw_error_dump_fifo);
945 }
946
947 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
948 if (!mem_cfg->txfifo_size[i])
949 continue;
655e6d6d 950
04fd2c28
LK		 951 /* Add header info */
952 fifo_data_len += mem_cfg->txfifo_size[i] +
953 sizeof(*dump_data) +
954 sizeof(struct iwl_fw_error_dump_fifo);
955 }
956 }
655e6d6d
EG		 957
958 file_len = sizeof(*dump_file) +
04fd2c28 959 sizeof(*dump_data) * 2 +
a549b296 960 sram_len + sizeof(*dump_mem) +
04fd2c28 961 fifo_data_len +
655e6d6d
EG		 962 sizeof(*dump_info);
963
addfaada
LK		 964 /* Make room for the SMEM, if it exists */
965 if (smem_len)
a549b296 966 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 967
86138324
IY		 968 /* Make room for the secondary SRAM, if it exists */
969 if (sram2_len)
970 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
971
5bfe6f53 972 dump_file = vzalloc(file_len);
48eb7b34
EG		 973 if (!dump_file) {
974 kfree(fw_error_dump);
655e6d6d 975 return;
48eb7b34 976 }
655e6d6d 977
48eb7b34 978 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 979
980 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 981 dump_data = (void *)dump_file->data;
982
983 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
984 dump_data->len = cpu_to_le32(sizeof(*dump_info));
985 dump_info = (void *) dump_data->data;
986 dump_info->device_family =
987 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
988 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
989 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 990 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 991 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
992 sizeof(dump_info->fw_human_readable));
993 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
994 sizeof(dump_info->dev_human_readable));
995 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
996 sizeof(dump_info->bus_human_readable));
997
998 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 999 /* We only dump the FIFOs if the FW is in error state */
1000 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1001 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1002
a549b296
EG		 1003 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1004 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1005 dump_mem = (void *)dump_data->data;
1006 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1007 dump_mem->offset = cpu_to_le32(sram_ofs);
1008 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1009 sram_len);
1010
addfaada
LK		 1011 if (smem_len) {
1012 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1013 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1014 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1015 dump_mem = (void *)dump_data->data;
1016 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1017 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1018 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1019 dump_mem->data, smem_len);
addfaada
LK		 1020 }
1021
86138324
IY		 1022 if (sram2_len) {
1023 dump_data = iwl_fw_error_next_data(dump_data);
1024 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1025 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1026 dump_mem = (void *)dump_data->data;
1027 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1028 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1029 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1030 dump_mem->data, sram2_len);
1031 }
1032
48eb7b34
EG		 1033 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1034 fw_error_dump->op_mode_len = file_len;
1035 if (fw_error_dump->trans_ptr)
1036 file_len += fw_error_dump->trans_ptr->len;
1037 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1038
aadede6e
JB		 1039 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1040 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1041
1042 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1043}
655e6d6d 1044
8ca151b5
JB		 1045static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1046{
58629d9d
JB		 1047 /* clear the D3 reconfig, we only need it to avoid dumping a
1048 * firmware coredump on reconfiguration, we shouldn't do that
1049 * on D3->D0 transition
1050 */
1051 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
1052 iwl_mvm_fw_error_dump(mvm);
1bd3cbc1 1053
744cb695
EP		 1054 /* cleanup all stale references (scan, roc), but keep the
1055 * ucode_down ref until reconfig is complete
1056 */
1057 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1058
8ca151b5 1059 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1060
1061 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 1062 mvm->ps_disabled = false;
31b8b343 1063 mvm->calibrating = false;
8ca151b5
JB		 1064
1065 /* just in case one was running */
1066 ieee80211_remain_on_channel_expired(mvm->hw);
1067
1068 ieee80211_iterate_active_interfaces_atomic(
1069 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1070 iwl_mvm_cleanup_iterator, mvm);
1071
fe0f2de3 1072 mvm->p2p_device_vif = NULL;
37577fe2 1073 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1074
1075 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 1076 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1077 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1078 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1079 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1080 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1081 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1082 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1083 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1084 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1085
1086 ieee80211_wake_queues(mvm->hw);
1087
228670b2
EP		 1088 /* clear any stale d0i3 state */
1089 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1090
8ca151b5 1091 mvm->vif_count = 0;
113a0447 1092 mvm->rx_ba_sessions = 0;
d2709ad7 1093 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1094
1095 /* keep statistics ticking */
1096 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1097}
1098
a0a09243 1099int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1100{
8ca151b5
JB		 1101 int ret;
1102
a0a09243 1103 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1104
1105 /* Clean up some internal and mac80211 state on restart */
1106 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1107 iwl_mvm_restart_cleanup(mvm);
1108
1109 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1110
1111 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1112 /* Something went wrong - we need to finish some cleanup
1113 * that normally iwl_mvm_mac_restart_complete() below
1114 * would do.
1115 */
1116 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1117 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1118 }
1119
a0a09243
LC		 1120 return ret;
1121}
1122
1123static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1124{
1125 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1126 int ret;
1127
37948fcf
EP		 1128 /* Some hw restart cleanups must not hold the mutex */
1129 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1130 /*
1131 * Make sure we are out of d0i3. This is needed
1132 * to make sure the reference accounting is correct
1133 * (and there is no stale d0i3_exit_work).
1134 */
1135 wait_event_timeout(mvm->d0i3_exit_waitq,
1136 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1137 &mvm->status),
1138 HZ);
1139 }
1140
a0a09243
LC		 1141 mutex_lock(&mvm->mutex);
1142 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1143 mutex_unlock(&mvm->mutex);
1144
1145 return ret;
1146}
1147
cf2c92d8 1148static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1149{
8ca151b5
JB		 1150 int ret;
1151
1152 mutex_lock(&mvm->mutex);
1153
1154 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1155 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 1156 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1157 if (ret)
1158 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1159 ret);
1160
7498cf4c
EP		 1161 /* allow transport/FW low power modes */
1162 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1163
cbd2ae2d
AN		 1164 /*
1165 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1166 * of packets the FW sent out, so we must reconnect.
1167 */
1168 iwl_mvm_teardown_tdls_peers(mvm);
1169
8ca151b5
JB		 1170 mutex_unlock(&mvm->mutex);
1171}
1172
088070a2
EP		 1173static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1174{
1175 bool exit_now;
1176
1177 if (!iwl_mvm_is_d0i3_supported(mvm))
1178 return;
1179
1180 mutex_lock(&mvm->d0i3_suspend_mutex);
1181 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1182 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1183 &mvm->d0i3_suspend_flags);
1184 mutex_unlock(&mvm->d0i3_suspend_mutex);
1185
1186 if (exit_now) {
1187 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1188 _iwl_mvm_exit_d0i3(mvm);
1189 }
6735943f
EP		 1190
1191 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1192 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1193 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1194 &mvm->status),
1195 HZ))
1196 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1197}
1198
cf2c92d8
EP		 1199static void
1200iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1201 enum ieee80211_reconfig_type reconfig_type)
1202{
1203 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1204
1205 switch (reconfig_type) {
1206 case IEEE80211_RECONFIG_TYPE_RESTART:
1207 iwl_mvm_restart_complete(mvm);
1208 break;
1209 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1210 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1211 break;
1212 }
1213}
1214
a0a09243 1215void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1216{
a0a09243 1217 lockdep_assert_held(&mvm->mutex);
7498cf4c 1218
91a8bcde
JB		 1219 /* firmware counters are obviously reset now, but we shouldn't
1220 * partially track so also clear the fw_reset_accu counters.
1221 */
1222 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1223
0a79a0c0
EP		 1224 /*
1225 * Disallow low power states when the FW is down by taking
1226 * the UCODE_DOWN ref. in case of ongoing hw restart the
1227 * ref is already taken, so don't take it again.
1228 */
1229 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1230 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1231
8ca151b5
JB		 1232 /* async_handlers_wk is now blocked */
1233
1234 /*
1235 * The work item could be running or queued if the
1236 * ROC time event stops just as we get here.
1237 */
1238 cancel_work_sync(&mvm->roc_done_wk);
1239
1240 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1241
1242 iwl_mvm_async_handlers_purge(mvm);
1243 /* async_handlers_list is empty and will stay empty: HW is stopped */
1244
1245 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1246 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1247
0a79a0c0
EP		 1248 /*
1249 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1250 * won't be called in this case).
1251 */
1252 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1253
bc44886d 1254 mvm->ucode_loaded = false;
a0a09243 1255}
bc44886d 1256
a0a09243
LC		 1257static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1258{
1259 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1260
1261 flush_work(&mvm->d0i3_exit_work);
1262 flush_work(&mvm->async_handlers_wk);
d2709ad7 1263 cancel_delayed_work_sync(&mvm->fw_dump_wk);
a0a09243
LC		 1264
1265 mutex_lock(&mvm->mutex);
1266 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1267 mutex_unlock(&mvm->mutex);
1268
1269 /*
1270 * The worker might have been waiting for the mutex, let it run and
1271 * discover that its list is now empty.
1272 */
1273 cancel_work_sync(&mvm->async_handlers_wk);
1274}
1275
fe0f2de3
IP		 1276static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1277{
1278 u16 i;
1279
1280 lockdep_assert_held(&mvm->mutex);
1281
1282 for (i = 0; i < NUM_PHY_CTX; i++)
1283 if (!mvm->phy_ctxts[i].ref)
1284 return &mvm->phy_ctxts[i];
1285
1286 IWL_ERR(mvm, "No available PHY context\n");
1287 return NULL;
1288}
1289
ee9c6cb0
EG		 1290static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1291 s8 tx_power)
1292{
1293 /* FW is in charge of regulatory enforcement */
1294 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1295 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1296 .pwr_restriction = cpu_to_le16(tx_power),
1297 };
1298
a1022927 1299 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1300 sizeof(reduce_txpwr_cmd),
1301 &reduce_txpwr_cmd);
1302}
1303
8ca151b5
JB		 1304static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1305 struct ieee80211_vif *vif)
1306{
1307 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1308 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1309 int ret;
1310
d40fc489
GG		 1311 /*
1312 * make sure D0i3 exit is completed, otherwise a target access
1313 * during tx queue configuration could be done when still in
1314 * D0i3 state.
1315 */
1316 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1317 if (ret)
1318 return ret;
1319
8ca151b5
JB		 1320 /*
1321 * Not much to do here. The stack will not allow interface
1322 * types or combinations that we didn't advertise, so we
1323 * don't really have to check the types.
1324 */
1325
1326 mutex_lock(&mvm->mutex);
1327
33cef925
JB		 1328 /* make sure that beacon statistics don't go backwards with FW reset */
1329 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1330 mvmvif->beacon_stats.accu_num_beacons +=
1331 mvmvif->beacon_stats.num_beacons;
1332
e89044d7 1333 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1334 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1335 if (ret)
1336 goto out_unlock;
1337
1c2abf72 1338 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1339 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1340 mvm->vif_count++;
ea183d02 1341
8ca151b5
JB		 1342 /*
1343 * The AP binding flow can be done only after the beacon
1344 * template is configured (which happens only in the mac80211
1345 * start_ap() flow), and adding the broadcast station can happen
1346 * only after the binding.
1347 * In addition, since modifying the MAC before adding a bcast
1348 * station is not allowed by the FW, delay the adding of MAC context to
1349 * the point where we can also add the bcast station.
1350 * In short: there's not much we can do at this point, other than
1351 * allocating resources :)
1352 */
5023d966
JB		 1353 if (vif->type == NL80211_IFTYPE_AP ||
1354 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1355 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1356 if (ret) {
1357 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1358 goto out_release;
1359 }
1360
77740cb4 1361 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1362 goto out_unlock;
1363 }
1364
8ca151b5
JB		 1365 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1366 if (ret)
1367 goto out_release;
1368
999609f1 1369 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1370 if (ret)
fd66fc1c 1371 goto out_remove_mac;
8ca151b5 1372
7df15b1e 1373 /* beacon filtering */
a1022927 1374 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1375 if (ret)
1376 goto out_remove_mac;
1377
7df15b1e 1378 if (!mvm->bf_allowed_vif &&
73e5f2c5 1379 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1380 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1381 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1382 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1383 }
1384
8ca151b5
JB		 1385 /*
1386 * P2P_DEVICE interface does not have a channel context assigned to it,
1387 * so a dedicated PHY context is allocated to it and the corresponding
1388 * MAC context is bound to it at this stage.
1389 */
1390 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1391
fe0f2de3
IP		 1392 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1393 if (!mvmvif->phy_ctxt) {
1394 ret = -ENOSPC;
bd3351ba 1395 goto out_free_bf;
fe0f2de3 1396 }
8ca151b5 1397
53a9d61e 1398 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1399 ret = iwl_mvm_binding_add_vif(mvm, vif);
1400 if (ret)
53a9d61e 1401 goto out_unref_phy;
8ca151b5 1402
013290aa 1403 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1404 if (ret)
1405 goto out_unbind;
1406
1407 /* Save a pointer to p2p device vif, so it can later be used to
1408 * update the p2p device MAC when a GO is started/stopped */
1409 mvm->p2p_device_vif = vif;
1410 }
1411
63494374 1412 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1413 goto out_unlock;
1414
1415 out_unbind:
1416 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1417 out_unref_phy:
fe0f2de3 1418 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1419 out_free_bf:
1420 if (mvm->bf_allowed_vif == mvmvif) {
1421 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1422 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1423 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1424 }
8ca151b5
JB		 1425 out_remove_mac:
1426 mvmvif->phy_ctxt = NULL;
1427 iwl_mvm_mac_ctxt_remove(mvm, vif);
1428 out_release:
5ee2b215
AB		 1429 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1430 mvm->vif_count--;
1c2abf72 1431
8ca151b5
JB		 1432 iwl_mvm_mac_ctxt_release(mvm, vif);
1433 out_unlock:
1434 mutex_unlock(&mvm->mutex);
1435
d40fc489
GG		 1436 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1437
8ca151b5
JB		 1438 return ret;
1439}
1440
38a12b5b
JB		 1441static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1442 struct ieee80211_vif *vif)
8ca151b5 1443{
d92b732e 1444 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1445
1446 if (tfd_msk) {
1447 mutex_lock(&mvm->mutex);
1448 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1449 mutex_unlock(&mvm->mutex);
1450 }
1451
1452 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1453 /*
1454 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1455 * We assume here that all the packets sent to the OFFCHANNEL
1456 * queue are sent in ROC session.
1457 */
1458 flush_work(&mvm->roc_done_wk);
1459 } else {
1460 /*
1461 * By now, all the AC queues are empty. The AGG queues are
1462 * empty too. We already got all the Tx responses for all the
1463 * packets in the queues. The drain work can have been
0742a75a 1464 * triggered. Flush it.
8ca151b5
JB		 1465 */
1466 flush_work(&mvm->sta_drained_wk);
1467 }
38a12b5b
JB		 1468}
1469
1470static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1471 struct ieee80211_vif *vif)
1472{
1473 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1475
1476 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1477
1478 mutex_lock(&mvm->mutex);
1479
7df15b1e
HG		 1480 if (mvm->bf_allowed_vif == mvmvif) {
1481 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1482 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1483 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1484 }
1485
63494374
JB		 1486 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1487
8ca151b5
JB		 1488 /*
1489 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1490 * interface is be handled as part of the stop_ap flow.
8ca151b5 1491 */
5023d966
JB		 1492 if (vif->type == NL80211_IFTYPE_AP ||
1493 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1494#ifdef CONFIG_NL80211_TESTMODE
1495 if (vif == mvm->noa_vif) {
1496 mvm->noa_vif = NULL;
1497 mvm->noa_duration = 0;
1498 }
1499#endif
013290aa 1500 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1501 goto out_release;
1502 }
1503
1504 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1505 mvm->p2p_device_vif = NULL;
013290aa 1506 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1507 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1508 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1509 mvmvif->phy_ctxt = NULL;
1510 }
1511
5ee2b215 1512 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1513 mvm->vif_count--;
1c2abf72 1514
999609f1 1515 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1516 iwl_mvm_mac_ctxt_remove(mvm, vif);
1517
1518out_release:
1519 iwl_mvm_mac_ctxt_release(mvm, vif);
1520 mutex_unlock(&mvm->mutex);
1521}
1522
1523static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1524{
8ca151b5
JB		 1525 return 0;
1526}
1527
e59647ea
EP		 1528struct iwl_mvm_mc_iter_data {
1529 struct iwl_mvm *mvm;
1530 int port_id;
1531};
1532
1533static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1534 struct ieee80211_vif *vif)
1535{
1536 struct iwl_mvm_mc_iter_data *data = _data;
1537 struct iwl_mvm *mvm = data->mvm;
1538 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1539 int ret, len;
1540
1541 /* if we don't have free ports, mcast frames will be dropped */
1542 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1543 return;
1544
1545 if (vif->type != NL80211_IFTYPE_STATION ||
1546 !vif->bss_conf.assoc)
1547 return;
1548
1549 cmd->port_id = data->port_id++;
1550 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1551 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1552
1c4abec0 1553 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1554 if (ret)
1555 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1556}
1557
1558static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1559{
1560 struct iwl_mvm_mc_iter_data iter_data = {
1561 .mvm = mvm,
88f2fd73
MG		 1562 };
1563
e59647ea
EP		 1564 lockdep_assert_held(&mvm->mutex);
1565
1566 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1567 return;
1568
1c4abec0 1569 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1570 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1571 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1572}
1573
e59647ea
EP		 1574static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1575 struct netdev_hw_addr_list *mc_list)
8ca151b5 1576{
e59647ea
EP		 1577 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1578 struct iwl_mcast_filter_cmd *cmd;
1579 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1580 int addr_count;
1581 bool pass_all;
e59647ea
EP		 1582 int len;
1583
f3bd58f4
MS		 1584 addr_count = netdev_hw_addr_list_count(mc_list);
1585 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1586 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1587 if (pass_all)
e59647ea 1588 addr_count = 0;
e59647ea
EP		 1589
1590 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1591 cmd = kzalloc(len, GFP_ATOMIC);
1592 if (!cmd)
1593 return 0;
1594
1595 if (pass_all) {
1596 cmd->pass_all = 1;
1597 return (u64)(unsigned long)cmd;
1598 }
1599
1600 netdev_hw_addr_list_for_each(addr, mc_list) {
1601 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1602 cmd->count, addr->addr);
1603 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1604 addr->addr, ETH_ALEN);
1605 cmd->count++;
1606 }
1607
1608 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1609}
1610
1611static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1612 unsigned int changed_flags,
1613 unsigned int *total_flags,
1614 u64 multicast)
1615{
e59647ea
EP		 1616 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1617 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1618
e59647ea 1619 mutex_lock(&mvm->mutex);
51b6b9e0 1620
e59647ea
EP		 1621 /* replace previous configuration */
1622 kfree(mvm->mcast_filter_cmd);
1623 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1624
e59647ea
EP		 1625 if (!cmd)
1626 goto out;
51b6b9e0 1627
e59647ea
EP		 1628 iwl_mvm_recalc_multicast(mvm);
1629out:
1630 mutex_unlock(&mvm->mutex);
1631 *total_flags = 0;
51b6b9e0
EG		 1632}
1633
c87163b9
EP		 1634#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1635struct iwl_bcast_iter_data {
1636 struct iwl_mvm *mvm;
1637 struct iwl_bcast_filter_cmd *cmd;
1638 u8 current_filter;
1639};
1640
1641static void
1642iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1643 const struct iwl_fw_bcast_filter *in_filter,
1644 struct iwl_fw_bcast_filter *out_filter)
1645{
1646 struct iwl_fw_bcast_filter_attr *attr;
1647 int i;
1648
1649 memcpy(out_filter, in_filter, sizeof(*out_filter));
1650
1651 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1652 attr = &out_filter->attrs[i];
1653
1654 if (!attr->mask)
1655 break;
1656
2ee8f021
EP		 1657 switch (attr->reserved1) {
1658 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1659 if (vif->bss_conf.arp_addr_cnt != 1) {
1660 attr->mask = 0;
1661 continue;
1662 }
1663
1664 attr->val = vif->bss_conf.arp_addr_list[0];
1665 break;
1666 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1667 attr->val = *(__be32 *)&vif->addr[2];
1668 break;
1669 default:
1670 break;
1671 }
1672 attr->reserved1 = 0;
c87163b9
EP		 1673 out_filter->num_attrs++;
1674 }
1675}
1676
1677static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1678 struct ieee80211_vif *vif)
1679{
1680 struct iwl_bcast_iter_data *data = _data;
1681 struct iwl_mvm *mvm = data->mvm;
1682 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1683 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1684 struct iwl_fw_bcast_mac *bcast_mac;
1685 int i;
1686
1687 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1688 return;
1689
1690 bcast_mac = &cmd->macs[mvmvif->id];
1691
e48393e8
IP		 1692 /*
1693 * enable filtering only for associated stations, but not for P2P
1694 * Clients
1695 */
1696 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1697 !vif->bss_conf.assoc)
c87163b9
EP		 1698 return;
1699
1700 bcast_mac->default_discard = 1;
1701
1702 /* copy all configured filters */
1703 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1704 /*
1705 * Make sure we don't exceed our filters limit.
1706 * if there is still a valid filter to be configured,
1707 * be on the safe side and just allow bcast for this mac.
1708 */
1709 if (WARN_ON_ONCE(data->current_filter >=
1710 ARRAY_SIZE(cmd->filters))) {
1711 bcast_mac->default_discard = 0;
1712 bcast_mac->attached_filters = 0;
1713 break;
1714 }
1715
1716 iwl_mvm_set_bcast_filter(vif,
1717 &mvm->bcast_filters[i],
1718 &cmd->filters[data->current_filter]);
1719
1720 /* skip current filter if it contains no attributes */
1721 if (!cmd->filters[data->current_filter].num_attrs)
1722 continue;
1723
1724 /* attach the filter to current mac */
1725 bcast_mac->attached_filters |=
1726 cpu_to_le16(BIT(data->current_filter));
1727
1728 data->current_filter++;
1729 }
1730}
1731
de06a59e
EP		 1732bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1733 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1734{
c87163b9
EP		 1735 struct iwl_bcast_iter_data iter_data = {
1736 .mvm = mvm,
de06a59e 1737 .cmd = cmd,
c87163b9
EP		 1738 };
1739
3b8983b1
MS		 1740 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1741 return false;
1742
de06a59e
EP		 1743 memset(cmd, 0, sizeof(*cmd));
1744 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1745 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1746
1747#ifdef CONFIG_IWLWIFI_DEBUGFS
1748 /* use debugfs filters/macs if override is configured */
1749 if (mvm->dbgfs_bcast_filtering.override) {
1750 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1751 sizeof(cmd->filters));
1752 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1753 sizeof(cmd->macs));
1754 return true;
1755 }
1756#endif
c87163b9
EP		 1757
1758 /* if no filters are configured, do nothing */
1759 if (!mvm->bcast_filters)
de06a59e 1760 return false;
c87163b9
EP		 1761
1762 /* configure and attach these filters for each associated sta vif */
1763 ieee80211_iterate_active_interfaces(
1764 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1765 iwl_mvm_bcast_filter_iterator, &iter_data);
1766
de06a59e
EP		 1767 return true;
1768}
1769static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1770 struct ieee80211_vif *vif)
1771{
1772 struct iwl_bcast_filter_cmd cmd;
1773
1774 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1775 return 0;
1776
1777 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1778 return 0;
1779
a1022927 1780 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1781 sizeof(cmd), &cmd);
1782}
1783#else
1784static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1785 struct ieee80211_vif *vif)
1786{
1787 return 0;
1788}
1789#endif
1790
8ca151b5
JB		 1791static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1792 struct ieee80211_vif *vif,
1793 struct ieee80211_bss_conf *bss_conf,
1794 u32 changes)
1795{
1796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1797 int ret;
1798
6e97b0d2
IP		 1799 /*
1800 * Re-calculate the tsf id, as the master-slave relations depend on the
1801 * beacon interval, which was not known when the station interface was
1802 * added.
1803 */
1804 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1805 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1806
3dfd3a97
JB		 1807 /*
1808 * If we're not associated yet, take the (new) BSSID before associating
1809 * so the firmware knows. If we're already associated, then use the old
1810 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1811 * branch for disassociation below.
1812 */
1813 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1814 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1815
1816 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1817 if (ret)
1818 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1819
3dfd3a97
JB		 1820 /* after sending it once, adopt mac80211 data */
1821 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1822 mvmvif->associated = bss_conf->assoc;
1823
8ca151b5
JB		 1824 if (changes & BSS_CHANGED_ASSOC) {
1825 if (bss_conf->assoc) {
33cef925
JB		 1826 /* clear statistics to get clean beacon counter */
1827 iwl_mvm_request_statistics(mvm, true);
1828 memset(&mvmvif->beacon_stats, 0,
1829 sizeof(mvmvif->beacon_stats));
1830
8ca151b5 1831 /* add quota for this interface */
0166230c 1832 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1833 if (ret) {
1834 IWL_ERR(mvm, "failed to update quotas\n");
1835 return;
1836 }
016d27e1
JB		 1837
1838 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1839 &mvm->status)) {
1840 /*
1841 * If we're restarting then the firmware will
1842 * obviously have lost synchronisation with
1843 * the AP. It will attempt to synchronise by
1844 * itself, but we can make it more reliable by
1845 * scheduling a session protection time event.
1846 *
1847 * The firmware needs to receive a beacon to
1848 * catch up with synchronisation, use 110% of
1849 * the beacon interval.
1850 *
1851 * Set a large maximum delay to allow for more
1852 * than a single interface.
1853 */
1854 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1855 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1856 5 * dur, false);
016d27e1 1857 }
1f3b0ff8
LE		 1858
1859 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1860 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1861 if (vif->p2p) {
29a90a49 1862 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1863 iwl_mvm_update_smps(mvm, vif,
1864 IWL_MVM_SMPS_REQ_PROT,
1865 IEEE80211_SMPS_DYNAMIC);
1866 }
8ca151b5 1867 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1868 /*
1869 * If update fails - SF might be running in associated
1870 * mode while disassociated - which is forbidden.
1871 */
1872 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1873 "Failed to update SF upon disassociation\n");
1874
8ca151b5
JB		 1875 /* remove AP station now that the MAC is unassoc */
1876 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1877 if (ret)
1878 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1879
1880 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1881 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1882 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1883 /* remove quota for this interface */
0166230c 1884 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1885 if (ret)
1886 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1887
1888 if (vif->p2p)
1889 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1890
1891 /* this will take the cleared BSSID from bss_conf */
1892 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1893 if (ret)
1894 IWL_ERR(mvm,
1895 "failed to update MAC %pM (clear after unassoc)\n",
1896 vif->addr);
8ca151b5 1897 }
a20fd398 1898
e59647ea 1899 iwl_mvm_recalc_multicast(mvm);
c87163b9 1900 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1901
a20fd398
AO		 1902 /* reset rssi values */
1903 mvmvif->bf_data.ave_beacon_signal = 0;
1904
8e484f0b 1905 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1906 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1907 IEEE80211_SMPS_AUTOMATIC);
989c6505 1908 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1909 /*
1910 * We received a beacon _after_ association so
1911 * remove the session protection.
1912 */
1913 iwl_mvm_remove_time_event(mvm, mvmvif,
1914 &mvmvif->time_event_data);
8ca151b5 1915 }
cc87d322
EH		 1916
1917 if (changes & BSS_CHANGED_BEACON_INFO) {
1918 iwl_mvm_sf_update(mvm, vif, false);
1919 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1920 }
1921
1bc10d3b
JB		 1922 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1923 ret = iwl_mvm_power_update_mac(mvm);
1924 if (ret)
1925 IWL_ERR(mvm, "failed to update power mode\n");
1926 }
1927
88f2fd73
MG		 1928 if (changes & BSS_CHANGED_TXPOWER) {
1929 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1930 bss_conf->txpower);
1931 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1932 }
a20fd398
AO		 1933
1934 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1935 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1936 /* reset cqm events tracking */
1937 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1938 if (mvmvif->bf_data.bf_enabled) {
1939 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1940 if (ret)
1941 IWL_ERR(mvm,
1942 "failed to update CQM thresholds\n");
1943 }
a20fd398 1944 }
2ee8f021
EP		 1945
1946 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1947 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1948 iwl_mvm_configure_bcast_filter(mvm, vif);
1949 }
8ca151b5
JB		 1950}
1951
5023d966
JB		 1952static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1953 struct ieee80211_vif *vif)
8ca151b5
JB		 1954{
1955 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1956 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1957 int ret;
1958
576eeee9
EP		 1959 /*
1960 * iwl_mvm_mac_ctxt_add() might read directly from the device
1961 * (the system time), so make sure it is available.
1962 */
1963 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1964 if (ret)
1965 return ret;
1966
8ca151b5
JB		 1967 mutex_lock(&mvm->mutex);
1968
1969 /* Send the beacon template */
1970 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1971 if (ret)
1972 goto out_unlock;
1973
6e97b0d2
IP		 1974 /*
1975 * Re-calculate the tsf id, as the master-slave relations depend on the
1976 * beacon interval, which was not known when the AP interface was added.
1977 */
1978 if (vif->type == NL80211_IFTYPE_AP)
1979 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1980
8ca151b5
JB		 1981 /* Add the mac context */
1982 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1983 if (ret)
1984 goto out_unlock;
1985
1986 /* Perform the binding */
1987 ret = iwl_mvm_binding_add_vif(mvm, vif);
1988 if (ret)
1989 goto out_remove;
1990
8ca151b5
JB		 1991 /* Send the bcast station. At this stage the TBTT and DTIM time events
1992 * are added and applied to the scheduler */
013290aa 1993 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1994 if (ret)
1995 goto out_unbind;
1996
5691e218
IP		 1997 /* must be set before quota calculations */
1998 mvmvif->ap_ibss_active = true;
1999
a11e144e 2000 /* power updated needs to be done before quotas */
999609f1 2001 iwl_mvm_power_update_mac(mvm);
a11e144e 2002
0166230c 2003 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 2004 if (ret)
a11e144e 2005 goto out_quota_failed;
8ca151b5 2006
5023d966 2007 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2008 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2009 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2010
29a90a49
EP		 2011 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2012
8e484f0b 2013 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2014
f697267f
AN		 2015 /* we don't support TDLS during DCM */
2016 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2017 iwl_mvm_teardown_tdls_peers(mvm);
2018
8ca151b5
JB		 2019 mutex_unlock(&mvm->mutex);
2020 return 0;
2021
a11e144e 2022out_quota_failed:
999609f1 2023 iwl_mvm_power_update_mac(mvm);
5691e218 2024 mvmvif->ap_ibss_active = false;
013290aa 2025 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2026out_unbind:
2027 iwl_mvm_binding_remove_vif(mvm, vif);
2028out_remove:
2029 iwl_mvm_mac_ctxt_remove(mvm, vif);
2030out_unlock:
2031 mutex_unlock(&mvm->mutex);
576eeee9 2032 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2033 return ret;
2034}
2035
5023d966
JB		 2036static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2037 struct ieee80211_vif *vif)
8ca151b5
JB		 2038{
2039 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2040 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2041
38a12b5b
JB		 2042 iwl_mvm_prepare_mac_removal(mvm, vif);
2043
8ca151b5
JB		 2044 mutex_lock(&mvm->mutex);
2045
664322fa 2046 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2047 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2048 iwl_mvm_remove_time_event(mvm, mvmvif,
2049 &mvmvif->time_event_data);
664322fa 2050 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2051 }
664322fa 2052
003e5236
AO		 2053 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2054 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2055 mvm->csa_tx_block_bcn_timeout = 0;
2056 }
2057
5023d966 2058 mvmvif->ap_ibss_active = false;
1c87bbad 2059 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2060
8e484f0b 2061 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2062
29a90a49
EP		 2063 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2064
5023d966 2065 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2066 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2067 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2068
0166230c 2069 iwl_mvm_update_quotas(mvm, NULL);
013290aa 2070 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2071 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2072
999609f1 2073 iwl_mvm_power_update_mac(mvm);
a11e144e 2074
8ca151b5
JB		 2075 iwl_mvm_mac_ctxt_remove(mvm, vif);
2076
2077 mutex_unlock(&mvm->mutex);
2078}
2079
5023d966
JB		 2080static void
2081iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2082 struct ieee80211_vif *vif,
2083 struct ieee80211_bss_conf *bss_conf,
2084 u32 changes)
8ca151b5 2085{
be2056fc 2086 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2087
be2056fc
IP		 2088 /* Changes will be applied when the AP/IBSS is started */
2089 if (!mvmvif->ap_ibss_active)
2090 return;
2091
863230da 2092 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2093 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2094 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2095 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2096
8ca151b5 2097 /* Need to send a new beacon template to the FW */
863230da
JB		 2098 if (changes & BSS_CHANGED_BEACON &&
2099 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2100 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2101
2102 if (changes & BSS_CHANGED_TXPOWER) {
2103 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2104 bss_conf->txpower);
2105 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2106 }
2107
8ca151b5
JB		 2108}
2109
2110static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2111 struct ieee80211_vif *vif,
2112 struct ieee80211_bss_conf *bss_conf,
2113 u32 changes)
2114{
2115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2116
576eeee9
EP		 2117 /*
2118 * iwl_mvm_bss_info_changed_station() might call
2119 * iwl_mvm_protect_session(), which reads directly from
2120 * the device (the system time), so make sure it is available.
2121 */
2122 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2123 return;
2124
8ca151b5
JB		 2125 mutex_lock(&mvm->mutex);
2126
723f02ed 2127 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2128 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2129
8ca151b5
JB		 2130 switch (vif->type) {
2131 case NL80211_IFTYPE_STATION:
2132 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2133 break;
2134 case NL80211_IFTYPE_AP:
5023d966
JB		 2135 case NL80211_IFTYPE_ADHOC:
2136 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2137 break;
2138 default:
2139 /* shouldn't happen */
2140 WARN_ON_ONCE(1);
2141 }
2142
2143 mutex_unlock(&mvm->mutex);
576eeee9 2144 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2145}
2146
4660dfbb
EP		 2147static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2148 enum iwl_scan_status scan_type)
2149{
2150 int ret;
2151 bool wait_for_handlers = false;
2152
2153 mutex_lock(&mvm->mutex);
2154
2155 if (mvm->scan_status != scan_type) {
2156 ret = 0;
2157 /* make sure there are no pending notifications */
2158 wait_for_handlers = true;
2159 goto out;
2160 }
2161
2162 switch (scan_type) {
2163 case IWL_MVM_SCAN_SCHED:
2164 ret = iwl_mvm_scan_offload_stop(mvm, true);
2165 break;
2166 case IWL_MVM_SCAN_OS:
2167 ret = iwl_mvm_cancel_scan(mvm);
2168 break;
2169 case IWL_MVM_SCAN_NONE:
2170 default:
2171 WARN_ON_ONCE(1);
2172 ret = -EINVAL;
2173 break;
2174 }
2175 if (ret)
2176 goto out;
2177
2178 wait_for_handlers = true;
2179out:
2180 mutex_unlock(&mvm->mutex);
2181
2182 /* make sure we consume the completion notification */
2183 if (wait_for_handlers)
2184 iwl_mvm_wait_for_async_handlers(mvm);
2185
2186 return ret;
2187}
8ca151b5
JB		 2188static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2189 struct ieee80211_vif *vif,
c56ef672 2190 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2191{
2192 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 2193 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 2194 int ret;
2195
762533ba
DS		 2196 if (req->n_channels == 0 ||
2197 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2198 return -EINVAL;
2199
d2496221
DS		 2200 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2201 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2202 if (ret)
2203 return ret;
2204 }
4660dfbb 2205
8ca151b5
JB		 2206 mutex_lock(&mvm->mutex);
2207
4660dfbb 2208 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 2209 ret = -EBUSY;
519e2026
AN		 2210 goto out;
2211 }
8ca151b5 2212
519e2026
AN		 2213 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2214
b975e55a 2215 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 2216 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
fb98be5e 2217 else
1f940386 2218 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e 2219
519e2026
AN		 2220 if (ret)
2221 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2222out:
8ca151b5 2223 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 2224 return ret;
2225}
2226
2227static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2228 struct ieee80211_vif *vif)
2229{
2230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2231
2232 mutex_lock(&mvm->mutex);
2233
2234 iwl_mvm_cancel_scan(mvm);
2235
2236 mutex_unlock(&mvm->mutex);
2237}
2238
2239static void
2240iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2241 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2242 int num_frames,
2243 enum ieee80211_frame_release_type reason,
2244 bool more_data)
2245{
2246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2247
3e56eadf 2248 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2249
3e56eadf
JB		 2250 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2251 tids, more_data, false);
2252}
2253
2254static void
2255iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2256 struct ieee80211_sta *sta, u16 tids,
2257 int num_frames,
2258 enum ieee80211_frame_release_type reason,
2259 bool more_data)
2260{
2261 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2262
2263 /* Called when we need to transmit (a) frame(s) from agg queue */
2264
2265 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2266 tids, more_data, true);
8ca151b5
JB		 2267}
2268
2269static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2270 struct ieee80211_vif *vif,
2271 enum sta_notify_cmd cmd,
2272 struct ieee80211_sta *sta)
2273{
2274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2275 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2276 int tid;
8ca151b5
JB		 2277
2278 switch (cmd) {
2279 case STA_NOTIFY_SLEEP:
e3d4bc8c 2280 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2281 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2282 spin_lock_bh(&mvmsta->lock);
2283 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2284 struct iwl_mvm_tid_data *tid_data;
2285
2286 tid_data = &mvmsta->tid_data[tid];
2287 if (tid_data->state != IWL_AGG_ON &&
2288 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2289 continue;
2290 if (iwl_mvm_tid_queued(tid_data) == 0)
2291 continue;
2292 ieee80211_sta_set_buffered(sta, tid, true);
2293 }
2294 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2295 /*
2296 * The fw updates the STA to be asleep. Tx packets on the Tx
2297 * queues to this station will not be transmitted. The fw will
2298 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2299 */
2300 break;
2301 case STA_NOTIFY_AWAKE:
881acd89 2302 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2303 break;
9cc40712 2304 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2305 break;
2306 default:
2307 break;
2308 }
2309}
2310
1ddbbb0c
JB		 2311static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2312 struct ieee80211_vif *vif,
2313 struct ieee80211_sta *sta)
2314{
2315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2316 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2317
2318 /*
2319 * This is called before mac80211 does RCU synchronisation,
2320 * so here we already invalidate our internal RCU-protected
2321 * station pointer. The rest of the code will thus no longer
2322 * be able to find the station this way, and we don't rely
2323 * on further RCU synchronisation after the sta_state()
2324 * callback deleted the station.
2325 */
2326 mutex_lock(&mvm->mutex);
2327 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2328 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2329 ERR_PTR(-ENOENT));
2330 mutex_unlock(&mvm->mutex);
2331}
2332
bd1ba664
JB		 2333static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2334 const u8 *bssid)
2335{
2336 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2337 return;
2338
2339 if (iwlwifi_mod_params.uapsd_disable) {
2340 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2341 return;
2342 }
2343
2344 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2345}
2346
8ca151b5
JB		 2347static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2348 struct ieee80211_vif *vif,
2349 struct ieee80211_sta *sta,
2350 enum ieee80211_sta_state old_state,
2351 enum ieee80211_sta_state new_state)
2352{
2353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2354 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2355 int ret;
2356
2357 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2358 sta->addr, old_state, new_state);
2359
2360 /* this would be a mac80211 bug ... but don't crash */
2361 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2362 return -EINVAL;
2363
2364 /* if a STA is being removed, reuse its ID */
2365 flush_work(&mvm->sta_drained_wk);
2366
2367 mutex_lock(&mvm->mutex);
2368 if (old_state == IEEE80211_STA_NOTEXIST &&
2369 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2370 /*
2371 * Firmware bug - it'll crash if the beacon interval is less
2372 * than 16. We can't avoid connecting at all, so refuse the
2373 * station state change, this will cause mac80211 to abandon
2374 * attempts to connect to this AP, and eventually wpa_s will
2375 * blacklist the AP...
2376 */
2377 if (vif->type == NL80211_IFTYPE_STATION &&
2378 vif->bss_conf.beacon_int < 16) {
2379 IWL_ERR(mvm,
2380 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2381 sta->addr, vif->bss_conf.beacon_int);
2382 ret = -EINVAL;
2383 goto out_unlock;
2384 }
cf7b491d
AN		 2385
2386 if (sta->tdls &&
2387 (vif->p2p ||
fa3d07e4
AN		 2388 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2389 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2390 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2391 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2392 ret = -EBUSY;
2393 goto out_unlock;
2394 }
2395
8ca151b5 2396 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2397 if (sta->tdls && ret == 0)
2398 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2399 } else if (old_state == IEEE80211_STA_NONE &&
2400 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2401 /*
2402 * EBS may be disabled due to previous failures reported by FW.
2403 * Reset EBS status here assuming environment has been changed.
2404 */
2405 mvm->last_ebs_successful = true;
bd1ba664 2406 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2407 ret = 0;
2408 } else if (old_state == IEEE80211_STA_AUTH &&
2409 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2410 ret = iwl_mvm_update_sta(mvm, vif, sta);
2411 if (ret == 0)
2412 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2413 mvmvif->phy_ctxt->channel->band,
2414 true);
8ca151b5
JB		 2415 } else if (old_state == IEEE80211_STA_ASSOC &&
2416 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2417
2418 /* we don't support TDLS during DCM */
2419 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2420 iwl_mvm_teardown_tdls_peers(mvm);
2421
7df15b1e 2422 /* enable beacon filtering */
fa7b2e7f 2423 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2424 ret = 0;
2425 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2426 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2427 /* disable beacon filtering */
a1022927 2428 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2429 ret = 0;
2430 } else if (old_state == IEEE80211_STA_ASSOC &&
2431 new_state == IEEE80211_STA_AUTH) {
2432 ret = 0;
2433 } else if (old_state == IEEE80211_STA_AUTH &&
2434 new_state == IEEE80211_STA_NONE) {
2435 ret = 0;
2436 } else if (old_state == IEEE80211_STA_NONE &&
2437 new_state == IEEE80211_STA_NOTEXIST) {
2438 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2439 if (sta->tdls)
2440 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2441 } else {
2442 ret = -EIO;
2443 }
48bc1307 2444 out_unlock:
8ca151b5
JB		 2445 mutex_unlock(&mvm->mutex);
2446
9c126cd6
LK		 2447 if (sta->tdls && ret == 0) {
2448 if (old_state == IEEE80211_STA_NOTEXIST &&
2449 new_state == IEEE80211_STA_NONE)
2450 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2451 else if (old_state == IEEE80211_STA_NONE &&
2452 new_state == IEEE80211_STA_NOTEXIST)
2453 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2454 }
2455
8ca151b5
JB		 2456 return ret;
2457}
2458
2459static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2460{
2461 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2462
2463 mvm->rts_threshold = value;
2464
2465 return 0;
2466}
2467
1f3b0ff8
LE		 2468static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2469 struct ieee80211_vif *vif,
2470 struct ieee80211_sta *sta, u32 changed)
2471{
2472 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2473
2474 if (vif->type == NL80211_IFTYPE_STATION &&
2475 changed & IEEE80211_RC_NSS_CHANGED)
2476 iwl_mvm_sf_update(mvm, vif, false);
2477}
2478
8ca151b5
JB		 2479static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2480 struct ieee80211_vif *vif, u16 ac,
2481 const struct ieee80211_tx_queue_params *params)
2482{
2483 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2484 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2485
2486 mvmvif->queue_params[ac] = *params;
2487
2488 /*
2489 * No need to update right away, we'll get BSS_CHANGED_QOS
2490 * The exception is P2P_DEVICE interface which needs immediate update.
2491 */
2492 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2493 int ret;
2494
2495 mutex_lock(&mvm->mutex);
3dfd3a97 2496 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2497 mutex_unlock(&mvm->mutex);
2498 return ret;
2499 }
2500 return 0;
2501}
2502
2503static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2504 struct ieee80211_vif *vif)
2505{
2506 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2507 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2508 200 + vif->bss_conf.beacon_int);
2509 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2510 100 + vif->bss_conf.beacon_int);
2511
2512 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2513 return;
2514
576eeee9
EP		 2515 /*
2516 * iwl_mvm_protect_session() reads directly from the device
2517 * (the system time), so make sure it is available.
2518 */
2519 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2520 return;
2521
8ca151b5
JB		 2522 mutex_lock(&mvm->mutex);
2523 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2524 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2525 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2526
2527 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2528}
2529
35a000b7
DS		 2530static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2531 struct ieee80211_vif *vif,
2532 struct cfg80211_sched_scan_request *req,
633e2713 2533 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2534{
2535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2536 int ret;
2537
d2496221
DS		 2538 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2539 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2540 if (ret)
2541 return ret;
2542 }
4660dfbb 2543
35a000b7
DS		 2544 mutex_lock(&mvm->mutex);
2545
1f940386 2546 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2547 ret = -EBUSY;
2548 goto out;
2549 }
2550
4660dfbb 2551 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2552 ret = -EBUSY;
2553 goto out;
2554 }
2555
b141c235 2556 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2557 if (ret)
b141c235 2558 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2559
35a000b7
DS		 2560out:
2561 mutex_unlock(&mvm->mutex);
2562 return ret;
2563}
2564
37e3308c
JB		 2565static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2566 struct ieee80211_vif *vif)
35a000b7
DS		 2567{
2568 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2569 int ret;
35a000b7
DS		 2570
2571 mutex_lock(&mvm->mutex);
fb98be5e 2572 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2573 mutex_unlock(&mvm->mutex);
33ea27f6 2574 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2575
33ea27f6 2576 return ret;
d2496221 2577
35a000b7
DS		 2578}
2579
8ca151b5
JB		 2580static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2581 enum set_key_cmd cmd,
2582 struct ieee80211_vif *vif,
2583 struct ieee80211_sta *sta,
2584 struct ieee80211_key_conf *key)
2585{
2586 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2587 int ret;
2588
2589 if (iwlwifi_mod_params.sw_crypto) {
2590 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2591 return -EOPNOTSUPP;
2592 }
2593
2594 switch (key->cipher) {
2595 case WLAN_CIPHER_SUITE_TKIP:
2596 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2597 /* fall-through */
2598 case WLAN_CIPHER_SUITE_CCMP:
2599 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2600 break;
2601 case WLAN_CIPHER_SUITE_AES_CMAC:
2602 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2603 break;
2604 case WLAN_CIPHER_SUITE_WEP40:
2605 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2606 /* For non-client mode, only use WEP keys for TX as we probably
2607 * don't have a station yet anyway and would then have to keep
2608 * track of the keys, linking them to each of the clients/peers
2609 * as they appear. For now, don't do that, for performance WEP
2610 * offload doesn't really matter much, but we need it for some
2611 * other offload features in client mode.
8ca151b5 2612 */
ba3943b0
JB		 2613 if (vif->type != NL80211_IFTYPE_STATION)
2614 return 0;
2615 break;
8ca151b5 2616 default:
e36e5433
MS		 2617 /* currently FW supports only one optional cipher scheme */
2618 if (hw->n_cipher_schemes &&
2619 hw->cipher_schemes->cipher == key->cipher)
2620 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2621 else
2622 return -EOPNOTSUPP;
8ca151b5
JB		 2623 }
2624
2625 mutex_lock(&mvm->mutex);
2626
2627 switch (cmd) {
2628 case SET_KEY:
5023d966
JB		 2629 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2630 vif->type == NL80211_IFTYPE_AP) && !sta) {
2631 /*
2632 * GTK on AP interface is a TX-only key, return 0;
2633 * on IBSS they're per-station and because we're lazy
2634 * we don't support them for RX, so do the same.
2635 */
6caffd4f
JB		 2636 ret = 0;
2637 key->hw_key_idx = STA_KEY_IDX_INVALID;
2638 break;
2639 }
2640
8ca151b5
JB		 2641 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2642 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2643 if (ret) {
2644 IWL_WARN(mvm, "set key failed\n");
2645 /*
2646 * can't add key for RX, but we don't need it
2647 * in the device for TX so still return 0
2648 */
6caffd4f 2649 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2650 ret = 0;
2651 }
2652
2653 break;
2654 case DISABLE_KEY:
6caffd4f
JB		 2655 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2656 ret = 0;
2657 break;
2658 }
2659
8ca151b5
JB		 2660 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2661 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2662 break;
2663 default:
2664 ret = -EINVAL;
2665 }
2666
2667 mutex_unlock(&mvm->mutex);
2668 return ret;
2669}
2670
2671static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2672 struct ieee80211_vif *vif,
2673 struct ieee80211_key_conf *keyconf,
2674 struct ieee80211_sta *sta,
2675 u32 iv32, u16 *phase1key)
2676{
2677 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2678
5023d966
JB		 2679 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2680 return;
2681
8ca151b5
JB		 2682 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2683}
2684
2685
b112889c
AM		 2686static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2687 struct iwl_rx_packet *pkt, void *data)
2688{
2689 struct iwl_mvm *mvm =
2690 container_of(notif_wait, struct iwl_mvm, notif_wait);
2691 struct iwl_hs20_roc_res *resp;
2692 int resp_len = iwl_rx_packet_payload_len(pkt);
2693 struct iwl_mvm_time_event_data *te_data = data;
2694
2695 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2696 return true;
2697
2698 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2699 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2700 return true;
2701 }
2702
2703 resp = (void *)pkt->data;
2704
2705 IWL_DEBUG_TE(mvm,
2706 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2707 resp->status, resp->event_unique_id);
2708
2709 te_data->uid = le32_to_cpu(resp->event_unique_id);
2710 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2711 te_data->uid);
2712
2713 spin_lock_bh(&mvm->time_event_lock);
2714 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2715 spin_unlock_bh(&mvm->time_event_lock);
2716
2717 return true;
2718}
2719
2720#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2721static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2722 struct ieee80211_channel *channel,
2723 struct ieee80211_vif *vif,
2724 int duration)
2725{
2726 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2727 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2728 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2729 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2730 struct iwl_notification_wait wait_time_event;
2731 struct iwl_hs20_roc_req aux_roc_req = {
2732 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2733 .id_and_color =
2734 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2735 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2736 /* Set the channel info data */
2737 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2738 PHY_BAND_24 : PHY_BAND_5,
2739 .channel_info.channel = channel->hw_value,
2740 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2741 /* Set the time and duration */
2742 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2743 .apply_time_max_delay =
2744 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2745 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2746 };
2747
2748 /* Set the node address */
2749 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2750
a6cc5163
MG		 2751 lockdep_assert_held(&mvm->mutex);
2752
2753 spin_lock_bh(&mvm->time_event_lock);
2754
2755 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2756 spin_unlock_bh(&mvm->time_event_lock);
2757 return -EIO;
2758 }
2759
b112889c
AM		 2760 te_data->vif = vif;
2761 te_data->duration = duration;
2762 te_data->id = HOT_SPOT_CMD;
2763
b112889c
AM		 2764 spin_unlock_bh(&mvm->time_event_lock);
2765
2766 /*
2767 * Use a notification wait, which really just processes the
2768 * command response and doesn't wait for anything, in order
2769 * to be able to process the response and get the UID inside
2770 * the RX path. Using CMD_WANT_SKB doesn't work because it
2771 * stores the buffer and then wakes up this thread, by which
2772 * time another notification (that the time event started)
2773 * might already be processed unsuccessfully.
2774 */
2775 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2776 time_event_response,
2777 ARRAY_SIZE(time_event_response),
2778 iwl_mvm_rx_aux_roc, te_data);
2779
2780 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2781 &aux_roc_req);
2782
2783 if (res) {
2784 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2785 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2786 goto out_clear_te;
2787 }
2788
2789 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2790 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2791 /* should never fail */
2792 WARN_ON_ONCE(res);
2793
2794 if (res) {
2795 out_clear_te:
2796 spin_lock_bh(&mvm->time_event_lock);
2797 iwl_mvm_te_clear_data(mvm, te_data);
2798 spin_unlock_bh(&mvm->time_event_lock);
2799 }
2800
2801 return res;
2802}
2803
8ca151b5
JB		 2804static int iwl_mvm_roc(struct ieee80211_hw *hw,
2805 struct ieee80211_vif *vif,
2806 struct ieee80211_channel *channel,
d339d5ca
IP		 2807 int duration,
2808 enum ieee80211_roc_type type)
8ca151b5
JB		 2809{
2810 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2811 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2812 struct cfg80211_chan_def chandef;
31d385ae
IP		 2813 struct iwl_mvm_phy_ctxt *phy_ctxt;
2814 int ret, i;
2815
2816 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2817 duration, type);
8ca151b5 2818
a6cc5163
MG		 2819 mutex_lock(&mvm->mutex);
2820
b112889c
AM		 2821 switch (vif->type) {
2822 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 2823 if (mvm->fw->ucode_capa.capa[0] &
2824 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2825 /* Use aux roc framework (HS20) */
2826 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2827 vif, duration);
2828 goto out_unlock;
2829 }
2830 IWL_ERR(mvm, "hotspot not supported\n");
2831 ret = -EINVAL;
a6cc5163 2832 goto out_unlock;
b112889c
AM		 2833 case NL80211_IFTYPE_P2P_DEVICE:
2834 /* handle below */
2835 break;
2836 default:
2837 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2838 ret = -EINVAL;
2839 goto out_unlock;
8ca151b5
JB		 2840 }
2841
31d385ae
IP		 2842 for (i = 0; i < NUM_PHY_CTX; i++) {
2843 phy_ctxt = &mvm->phy_ctxts[i];
2844 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2845 continue;
2846
2847 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2848 /*
2849 * Unbind the P2P_DEVICE from the current PHY context,
2850 * and if the PHY context is not used remove it.
2851 */
2852 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2853 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2854 goto out_unlock;
2855
2856 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2857
2858 /* Bind the P2P_DEVICE to the current PHY Context */
2859 mvmvif->phy_ctxt = phy_ctxt;
2860
2861 ret = iwl_mvm_binding_add_vif(mvm, vif);
2862 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2863 goto out_unlock;
2864
2865 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2866 goto schedule_time_event;
2867 }
2868 }
2869
2870 /* Need to update the PHY context only if the ROC channel changed */
2871 if (channel == mvmvif->phy_ctxt->channel)
2872 goto schedule_time_event;
2873
8ca151b5 2874 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2875
31d385ae
IP		 2876 /*
2877 * Change the PHY context configuration as it is currently referenced
2878 * only by the P2P Device MAC
2879 */
2880 if (mvmvif->phy_ctxt->ref == 1) {
2881 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2882 &chandef, 1, 1);
2883 if (ret)
2884 goto out_unlock;
2885 } else {
2886 /*
2887 * The PHY context is shared with other MACs. Need to remove the
2888 * P2P Device from the binding, allocate an new PHY context and
2889 * create a new binding
2890 */
2891 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2892 if (!phy_ctxt) {
2893 ret = -ENOSPC;
2894 goto out_unlock;
2895 }
2896
2897 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2898 1, 1);
2899 if (ret) {
2900 IWL_ERR(mvm, "Failed to change PHY context\n");
2901 goto out_unlock;
2902 }
2903
2904 /* Unbind the P2P_DEVICE from the current PHY context */
2905 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2906 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2907 goto out_unlock;
2908
2909 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2910
2911 /* Bind the P2P_DEVICE to the new allocated PHY context */
2912 mvmvif->phy_ctxt = phy_ctxt;
2913
2914 ret = iwl_mvm_binding_add_vif(mvm, vif);
2915 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2916 goto out_unlock;
2917
2918 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2919 }
2920
2921schedule_time_event:
8ca151b5 2922 /* Schedule the time events */
e635c797 2923 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2924
31d385ae 2925out_unlock:
8ca151b5
JB		 2926 mutex_unlock(&mvm->mutex);
2927 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2928 return ret;
2929}
2930
2931static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2932{
2933 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2934
2935 IWL_DEBUG_MAC80211(mvm, "enter\n");
2936
2937 mutex_lock(&mvm->mutex);
bf5da87f 2938 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2939 mutex_unlock(&mvm->mutex);
2940
2941 IWL_DEBUG_MAC80211(mvm, "leave\n");
2942 return 0;
2943}
2944
b08c1d97
LC		 2945static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2946 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2947{
fe0f2de3
IP		 2948 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2949 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2950 int ret;
2951
b08c1d97
LC		 2952 lockdep_assert_held(&mvm->mutex);
2953
53a9d61e 2954 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2955
fe0f2de3
IP		 2956 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2957 if (!phy_ctxt) {
2958 ret = -ENOSPC;
2959 goto out;
2960 }
8ca151b5 2961
dcbc3e1a 2962 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2963 ctx->rx_chains_static,
2964 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2965 if (ret) {
2966 IWL_ERR(mvm, "Failed to add PHY context\n");
2967 goto out;
2968 }
2969
53a9d61e 2970 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2971 *phy_ctxt_id = phy_ctxt->id;
2972out:
b08c1d97
LC		 2973 return ret;
2974}
2975
2976static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2977 struct ieee80211_chanctx_conf *ctx)
2978{
2979 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2980 int ret;
2981
2982 mutex_lock(&mvm->mutex);
2983 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2984 mutex_unlock(&mvm->mutex);
b08c1d97 2985
8ca151b5
JB		 2986 return ret;
2987}
2988
b08c1d97
LC		 2989static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2990 struct ieee80211_chanctx_conf *ctx)
2991{
2992 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2993 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2994
2995 lockdep_assert_held(&mvm->mutex);
2996
2997 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2998}
2999
8ca151b5
JB		 3000static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3001 struct ieee80211_chanctx_conf *ctx)
3002{
3003 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3004
3005 mutex_lock(&mvm->mutex);
b08c1d97 3006 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3007 mutex_unlock(&mvm->mutex);
3008}
3009
3010static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3011 struct ieee80211_chanctx_conf *ctx,
3012 u32 changed)
3013{
3014 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3015 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3016 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3017
31d385ae
IP		 3018 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3019 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3020 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3021 IEEE80211_CHANCTX_CHANGE_RADAR |
3022 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3023 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3024 phy_ctxt->ref, changed))
3025 return;
3026
8ca151b5 3027 mutex_lock(&mvm->mutex);
4d66449a 3028 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3029 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3030 ctx->rx_chains_static,
3031 ctx->rx_chains_dynamic);
3032 mutex_unlock(&mvm->mutex);
3033}
3034
b08c1d97
LC		 3035static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3036 struct ieee80211_vif *vif,
f0c97783
LC		 3037 struct ieee80211_chanctx_conf *ctx,
3038 bool switching_chanctx)
8ca151b5 3039{
fe0f2de3
IP		 3040 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3041 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3042 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3043 int ret;
3044
b08c1d97 3045 lockdep_assert_held(&mvm->mutex);
8ca151b5 3046
fe0f2de3 3047 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3048
3049 switch (vif->type) {
3050 case NL80211_IFTYPE_AP:
4741dd04
LC		 3051 /* only needed if we're switching chanctx (i.e. during CSA) */
3052 if (switching_chanctx) {
bd3398e2
AO		 3053 mvmvif->ap_ibss_active = true;
3054 break;
3055 }
5023d966 3056 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3057 /*
3058 * The AP binding flow is handled as part of the start_ap flow
5023d966 3059 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3060 */
3061 ret = 0;
b08c1d97 3062 goto out;
8ca151b5 3063 case NL80211_IFTYPE_STATION:
2533edce 3064 break;
8ca151b5 3065 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3066 /* always disable PS when a monitor interface is active */
3067 mvmvif->ps_disabled = true;
8ca151b5
JB		 3068 break;
3069 default:
3070 ret = -EINVAL;
b08c1d97 3071 goto out;
8ca151b5
JB		 3072 }
3073
3074 ret = iwl_mvm_binding_add_vif(mvm, vif);
3075 if (ret)
b08c1d97 3076 goto out;
8ca151b5
JB		 3077
3078 /*
92d85562
AB		 3079 * Power state must be updated before quotas,
3080 * otherwise fw will complain.
3081 */
999609f1 3082 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3083
3084 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3085 * interfaces. For the other types, the bss_info changed flow
3086 * will handle quota settings.
3087 */
3088 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3089 mvmvif->monitor_active = true;
0166230c 3090 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 3091 if (ret)
3092 goto out_remove_binding;
3093 }
3094
bd3398e2 3095 /* Handle binding during CSA */
a57c688d 3096 if (vif->type == NL80211_IFTYPE_AP) {
0166230c 3097 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 3098 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3099 }
3100
4741dd04 3101 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3102 u32 duration = 2 * vif->bss_conf.beacon_int;
3103
3104 /* iwl_mvm_protect_session() reads directly from the
3105 * device (the system time), so make sure it is
3106 * available.
3107 */
3108 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3109 if (ret)
3110 goto out_remove_binding;
3111
3112 /* Protect the session to make sure we hear the first
3113 * beacon on the new channel.
3114 */
3115 iwl_mvm_protect_session(mvm, vif, duration, duration,
3116 vif->bss_conf.beacon_int / 2,
3117 true);
3118
3119 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3120
a57c688d 3121 iwl_mvm_update_quotas(mvm, NULL);
0ce04ce7
LC		 3122 }
3123
b08c1d97 3124 goto out;
8ca151b5 3125
b08c1d97 3126out_remove_binding:
8ca151b5 3127 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3128 iwl_mvm_power_update_mac(mvm);
b08c1d97 3129out:
8ca151b5
JB		 3130 if (ret)
3131 mvmvif->phy_ctxt = NULL;
3132 return ret;
3133}
b08c1d97
LC		 3134static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3135 struct ieee80211_vif *vif,
3136 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3137{
3138 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3139 int ret;
8ca151b5
JB		 3140
3141 mutex_lock(&mvm->mutex);
f0c97783 3142 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3143 mutex_unlock(&mvm->mutex);
3144
3145 return ret;
3146}
3147
3148static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3149 struct ieee80211_vif *vif,
f0c97783
LC		 3150 struct ieee80211_chanctx_conf *ctx,
3151 bool switching_chanctx)
b08c1d97
LC		 3152{
3153 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3154 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3155
3156 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3157
3158 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3159
8ca151b5 3160 switch (vif->type) {
5023d966 3161 case NL80211_IFTYPE_ADHOC:
b08c1d97 3162 goto out;
8ca151b5 3163 case NL80211_IFTYPE_MONITOR:
1e1391ca 3164 mvmvif->monitor_active = false;
2533edce 3165 mvmvif->ps_disabled = false;
8ca151b5 3166 break;
bd3398e2
AO		 3167 case NL80211_IFTYPE_AP:
3168 /* This part is triggered only during CSA */
4741dd04 3169 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3170 goto out;
bd3398e2 3171
7ef0aab6
AO		 3172 mvmvif->csa_countdown = false;
3173
003e5236
AO		 3174 /* Set CS bit on all the stations */
3175 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3176
3177 /* Save blocked iface, the timeout is set on the next beacon */
3178 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3179
bd3398e2 3180 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3181 break;
3182 case NL80211_IFTYPE_STATION:
3183 if (!switching_chanctx)
3184 break;
3185
3186 disabled_vif = vif;
3187
3dfd3a97 3188 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3189 break;
8ca151b5
JB		 3190 default:
3191 break;
3192 }
3193
f0c97783 3194 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 3195 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3196
b08c1d97 3197out:
a11e144e 3198 mvmvif->phy_ctxt = NULL;
999609f1 3199 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3200}
3201
3202static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3203 struct ieee80211_vif *vif,
3204 struct ieee80211_chanctx_conf *ctx)
3205{
3206 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3207
3208 mutex_lock(&mvm->mutex);
f0c97783 3209 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3210 mutex_unlock(&mvm->mutex);
3211}
3212
50cc9574
LC		 3213static int
3214iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3215 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3216{
b08c1d97
LC		 3217 int ret;
3218
b08c1d97 3219 mutex_lock(&mvm->mutex);
f0c97783 3220 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3221 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3222
3223 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3224 if (ret) {
3225 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3226 goto out_reassign;
3227 }
3228
f0c97783
LC		 3229 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3230 true);
b08c1d97
LC		 3231 if (ret) {
3232 IWL_ERR(mvm,
3233 "failed to assign new_ctx during channel switch\n");
3234 goto out_remove;
3235 }
3236
f697267f
AN		 3237 /* we don't support TDLS during DCM - can be caused by channel switch */
3238 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3239 iwl_mvm_teardown_tdls_peers(mvm);
3240
b08c1d97
LC		 3241 goto out;
3242
3243out_remove:
3244 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3245
3246out_reassign:
6fd1fb63 3247 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3248 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3249 goto out_restart;
3250 }
3251
6fd1fb63
LC		 3252 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3253 true)) {
b08c1d97
LC		 3254 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3255 goto out_restart;
3256 }
3257
3258 goto out;
3259
3260out_restart:
3261 /* things keep failing, better restart the hw */
3262 iwl_mvm_nic_restart(mvm, false);
3263
3264out:
3265 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3266
3267 return ret;
3268}
3269
48a256e8
LC		 3270static int
3271iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3272 struct ieee80211_vif_chanctx_switch *vifs)
3273{
3274 int ret;
3275
3276 mutex_lock(&mvm->mutex);
3277 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3278
3279 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3280 true);
3281 if (ret) {
3282 IWL_ERR(mvm,
3283 "failed to assign new_ctx during channel switch\n");
3284 goto out_reassign;
3285 }
3286
3287 goto out;
3288
3289out_reassign:
3290 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3291 true)) {
3292 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3293 goto out_restart;
3294 }
3295
3296 goto out;
3297
3298out_restart:
3299 /* things keep failing, better restart the hw */
3300 iwl_mvm_nic_restart(mvm, false);
3301
3302out:
3303 mutex_unlock(&mvm->mutex);
3304
3305 return ret;
3306}
3307
50cc9574
LC		 3308static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3309 struct ieee80211_vif_chanctx_switch *vifs,
3310 int n_vifs,
3311 enum ieee80211_chanctx_switch_mode mode)
3312{
3313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3314 int ret;
3315
3316 /* we only support a single-vif right now */
3317 if (n_vifs > 1)
3318 return -EOPNOTSUPP;
3319
3320 switch (mode) {
3321 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3322 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3323 break;
3324 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3325 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3326 break;
3327 default:
3328 ret = -EOPNOTSUPP;
3329 break;
3330 }
3331
b08c1d97
LC		 3332 return ret;
3333}
3334
8ca151b5
JB		 3335static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3336 struct ieee80211_sta *sta,
3337 bool set)
3338{
3339 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3340 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3341
3342 if (!mvm_sta || !mvm_sta->vif) {
3343 IWL_ERR(mvm, "Station is not associated to a vif\n");
3344 return -EINVAL;
3345 }
3346
3347 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3348}
3349
507cadf2
DS		 3350#ifdef CONFIG_NL80211_TESTMODE
3351static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3352 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3353 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3354 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3355};
3356
3357static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3358 struct ieee80211_vif *vif,
3359 void *data, int len)
3360{
3361 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3362 int err;
3363 u32 noa_duration;
3364
3365 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3366 if (err)
3367 return err;
3368
3369 if (!tb[IWL_MVM_TM_ATTR_CMD])
3370 return -EINVAL;
3371
3372 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3373 case IWL_MVM_TM_CMD_SET_NOA:
3374 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3375 !vif->bss_conf.enable_beacon ||
3376 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3377 return -EINVAL;
3378
3379 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3380 if (noa_duration >= vif->bss_conf.beacon_int)
3381 return -EINVAL;
3382
3383 mvm->noa_duration = noa_duration;
3384 mvm->noa_vif = vif;
3385
0166230c 3386 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3387 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3388 /* must be associated client vif - ignore authorized */
3389 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3390 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3391 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3392 return -EINVAL;
3393
3394 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3395 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3396 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3397 }
3398
3399 return -EOPNOTSUPP;
3400}
3401
3402static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3403 struct ieee80211_vif *vif,
3404 void *data, int len)
3405{
3406 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3407 int err;
3408
3409 mutex_lock(&mvm->mutex);
3410 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3411 mutex_unlock(&mvm->mutex);
3412
3413 return err;
3414}
3415#endif
3416
622e3f9b
LC		 3417static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3418 struct ieee80211_vif *vif,
3419 struct ieee80211_channel_switch *chsw)
3420{
3421 /* By implementing this operation, we prevent mac80211 from
3422 * starting its own channel switch timer, so that we can call
3423 * ieee80211_chswitch_done() ourselves at the right time
3424 * (which is when the absence time event starts).
3425 */
3426
3427 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3428 "dummy channel switch op\n");
3429}
3430
f028905c
LC		 3431static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3432 struct ieee80211_vif *vif,
3433 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3434{
3435 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3436 struct ieee80211_vif *csa_vif;
f6c34820 3437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3438 u32 apply_time;
f028905c 3439 int ret;
bd3398e2
AO		 3440
3441 mutex_lock(&mvm->mutex);
664322fa 3442
6b20d774 3443 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3444 chsw->chandef.center_freq1);
6b20d774
LC		 3445
3446 switch (vif->type) {
3447 case NL80211_IFTYPE_AP:
3448 csa_vif =
3449 rcu_dereference_protected(mvm->csa_vif,
3450 lockdep_is_held(&mvm->mutex));
3451 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3452 "Another CSA is already in progress")) {
3453 ret = -EBUSY;
3454 goto out_unlock;
3455 }
3456
3457 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3458
7ef0aab6
AO		 3459 if (WARN_ONCE(mvmvif->csa_countdown,
3460 "Previous CSA countdown didn't complete")) {
3461 ret = -EBUSY;
3462 goto out_unlock;
3463 }
3464
6b20d774 3465 break;
dc88b4ba 3466 case NL80211_IFTYPE_STATION:
4500e133
LC		 3467 /* Schedule the time event to a bit before beacon 1,
3468 * to make sure we're in the new channel when the
3469 * GO/AP arrives.
3470 */
3471 apply_time = chsw->device_timestamp +
3472 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3473 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3474
3475 if (chsw->block_tx)
3476 iwl_mvm_csa_client_absent(mvm, vif);
3477
4500e133 3478 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3479 apply_time);
c6e0a3e0
LC		 3480 if (mvmvif->bf_data.bf_enabled) {
3481 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3482 if (ret)
3483 goto out_unlock;
3484 }
3485
dc88b4ba 3486 break;
6b20d774
LC		 3487 default:
3488 break;
3489 }
bd3398e2 3490
f6c34820
LC		 3491 mvmvif->ps_disabled = true;
3492
3493 ret = iwl_mvm_power_update_ps(mvm);
3494 if (ret)
3495 goto out_unlock;
f028905c 3496
e198f5e7
AN		 3497 /* we won't be on this channel any longer */
3498 iwl_mvm_teardown_tdls_peers(mvm);
3499
bd3398e2
AO		 3500out_unlock:
3501 mutex_unlock(&mvm->mutex);
f028905c
LC		 3502
3503 return ret;
bd3398e2
AO		 3504}
3505
f6c34820
LC		 3506static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3507 struct ieee80211_vif *vif)
3508{
3509 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3510 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3511 int ret;
3512
3513 mutex_lock(&mvm->mutex);
3514
a57c688d
LC		 3515 if (vif->type == NL80211_IFTYPE_STATION) {
3516 struct iwl_mvm_sta *mvmsta;
3517
3518 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3519 mvmvif->ap_sta_id);
3520
3521 if (WARN_ON(!mvmsta)) {
3522 ret = -EIO;
3523 goto out_unlock;
3524 }
3525
3526 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3527
3528 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3529
3530 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3531 if (ret)
3532 goto out_unlock;
686e7fe1
LC		 3533
3534 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3535 }
3536
f6c34820
LC		 3537 mvmvif->ps_disabled = false;
3538
3539 ret = iwl_mvm_power_update_ps(mvm);
3540
a57c688d 3541out_unlock:
f6c34820
LC		 3542 mutex_unlock(&mvm->mutex);
3543
3544 return ret;
3545}
3546
c5b0e7c0
EG		 3547static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3548 struct ieee80211_vif *vif, u32 queues, bool drop)
3549{
3550 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3551 struct iwl_mvm_vif *mvmvif;
3552 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3553 struct ieee80211_sta *sta;
3554 int i;
3555 u32 msk = 0;
c5b0e7c0
EG		 3556
3557 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3558 return;
3559
3560 mutex_lock(&mvm->mutex);
3561 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3562
a0f6bf2a
AN		 3563 /* flush the AP-station and all TDLS peers */
3564 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3565 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3566 lockdep_is_held(&mvm->mutex));
3567 if (IS_ERR_OR_NULL(sta))
3568 continue;
3569
3570 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3571 if (mvmsta->vif != vif)
3572 continue;
3573
3574 /* make sure only TDLS peers or the AP are flushed */
3575 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3576
3577 msk |= mvmsta->tfd_queue_msk;
480acbce 3578 }
c5b0e7c0 3579
6d440b25
EG		 3580 if (drop) {
3581 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3582 IWL_ERR(mvm, "flush request fail\n");
3583 mutex_unlock(&mvm->mutex);
3584 } else {
3585 mutex_unlock(&mvm->mutex);
4e6c48e0 3586
6d440b25
EG		 3587 /* this can take a while, and we may need/want other operations
3588 * to succeed while doing this, so do it without the mutex held
3589 */
3590 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3591 }
c5b0e7c0
EG		 3592}
3593
91a8bcde
JB		 3594static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3595 struct survey_info *survey)
3596{
3597 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3598 int ret;
3599
3600 memset(survey, 0, sizeof(*survey));
3601
3602 /* only support global statistics right now */
3603 if (idx != 0)
3604 return -ENOENT;
3605
3606 if (!(mvm->fw->ucode_capa.capa[0] &
3607 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3608 return -ENOENT;
3609
3610 mutex_lock(&mvm->mutex);
3611
3612 if (mvm->ucode_loaded) {
33cef925 3613 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3614 if (ret)
3615 goto out;
3616 }
3617
3618 survey->filled = SURVEY_INFO_TIME |
3619 SURVEY_INFO_TIME_RX |
3620 SURVEY_INFO_TIME_TX |
3621 SURVEY_INFO_TIME_SCAN;
3622 survey->time = mvm->accu_radio_stats.on_time_rf +
3623 mvm->radio_stats.on_time_rf;
3624 do_div(survey->time, USEC_PER_MSEC);
3625
3626 survey->time_rx = mvm->accu_radio_stats.rx_time +
3627 mvm->radio_stats.rx_time;
3628 do_div(survey->time_rx, USEC_PER_MSEC);
3629
3630 survey->time_tx = mvm->accu_radio_stats.tx_time +
3631 mvm->radio_stats.tx_time;
3632 do_div(survey->time_tx, USEC_PER_MSEC);
3633
3634 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3635 mvm->radio_stats.on_time_scan;
3636 do_div(survey->time_scan, USEC_PER_MSEC);
3637
3638 out:
3639 mutex_unlock(&mvm->mutex);
3640 return ret;
3641}
3642
33cef925
JB		 3643static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3644 struct ieee80211_vif *vif,
3645 struct ieee80211_sta *sta,
3646 struct station_info *sinfo)
3647{
3648 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3649 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3650 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3651
3652 if (!(mvm->fw->ucode_capa.capa[0] &
3653 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3654 return;
3655
3656 /* if beacon filtering isn't on mac80211 does it anyway */
3657 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3658 return;
3659
3660 if (!vif->bss_conf.assoc)
3661 return;
3662
3663 mutex_lock(&mvm->mutex);
3664
3665 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3666 goto unlock;
3667
3668 if (iwl_mvm_request_statistics(mvm, false))
3669 goto unlock;
3670
3671 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3672 mvmvif->beacon_stats.accu_num_beacons;
3673 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3674 if (mvmvif->beacon_stats.avg_signal) {
3675 /* firmware only reports a value after RXing a few beacons */
3676 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3677 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3678 }
3679 unlock:
3680 mutex_unlock(&mvm->mutex);
3681}
3682
e5209263 3683const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3684 .tx = iwl_mvm_mac_tx,
3685 .ampdu_action = iwl_mvm_mac_ampdu_action,
3686 .start = iwl_mvm_mac_start,
cf2c92d8 3687 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3688 .stop = iwl_mvm_mac_stop,
3689 .add_interface = iwl_mvm_mac_add_interface,
3690 .remove_interface = iwl_mvm_mac_remove_interface,
3691 .config = iwl_mvm_mac_config,
e59647ea 3692 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3693 .configure_filter = iwl_mvm_configure_filter,
3694 .bss_info_changed = iwl_mvm_bss_info_changed,
3695 .hw_scan = iwl_mvm_mac_hw_scan,
3696 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3697 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3698 .sta_state = iwl_mvm_mac_sta_state,
3699 .sta_notify = iwl_mvm_mac_sta_notify,
3700 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3701 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3702 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3703 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3704 .conf_tx = iwl_mvm_mac_conf_tx,
3705 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3706 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3707 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3708 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3709 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3710 .set_key = iwl_mvm_mac_set_key,
3711 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3712 .remain_on_channel = iwl_mvm_roc,
3713 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3714 .add_chanctx = iwl_mvm_add_chanctx,
3715 .remove_chanctx = iwl_mvm_remove_chanctx,
3716 .change_chanctx = iwl_mvm_change_chanctx,
3717 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3718 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3719 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3720
5023d966
JB		 3721 .start_ap = iwl_mvm_start_ap_ibss,
3722 .stop_ap = iwl_mvm_stop_ap_ibss,
3723 .join_ibss = iwl_mvm_start_ap_ibss,
3724 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3725
3726 .set_tim = iwl_mvm_set_tim,
3727
622e3f9b 3728 .channel_switch = iwl_mvm_channel_switch,
f028905c 3729 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 3730 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 3731
1d3c3f63
AN		 3732 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3733 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3734 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3735
507cadf2
DS		 3736 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3737
8ca151b5
JB		 3738#ifdef CONFIG_PM_SLEEP
3739 /* look at d3.c */
3740 .suspend = iwl_mvm_suspend,
3741 .resume = iwl_mvm_resume,
3742 .set_wakeup = iwl_mvm_set_wakeup,
3743 .set_rekey_data = iwl_mvm_set_rekey_data,
3744#if IS_ENABLED(CONFIG_IPV6)
3745 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3746#endif
3747 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3748#endif
91a8bcde 3749 .get_survey = iwl_mvm_mac_get_survey,
33cef925 3750 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 3751};
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