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iwlwifi: mvm: rs: fix BT Coex check to look at the correct ant
[linux-2.6-block.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
d2496221 342 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
effd05ac 343 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
fb98be5e 344 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
effd05ac
JB		 345 hw->wiphy->features |=
346 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
347 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
348 }
fb98be5e 349
8ca151b5
JB		 350 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
351 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 352 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 353
354 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 355 BIT(NL80211_IFTYPE_P2P_CLIENT) |
356 BIT(NL80211_IFTYPE_AP) |
357 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 358 BIT(NL80211_IFTYPE_P2P_DEVICE) |
359 BIT(NL80211_IFTYPE_ADHOC);
5023d966 360
a2f73b6c
LR		 361 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
362 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
363 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 364
3e56eadf
JB		 365 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
366 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
367
94bbed72 368 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 369
8ca151b5
JB		 370 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
371 hw->wiphy->n_iface_combinations =
372 ARRAY_SIZE(iwl_mvm_iface_combinations);
373
c451e6d4 374 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 375 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 376 /* we can compensate an offset of up to 3 channels = 15 MHz */
377 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 378
379 /* Extract MAC address */
380 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
381 hw->wiphy->addresses = mvm->addresses;
382 hw->wiphy->n_addresses = 1;
831e85f3
IP		 383
384 /* Extract additional MAC addresses if available */
385 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
386 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
387
388 for (i = 1; i < num_mac; i++) {
389 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 390 ETH_ALEN);
831e85f3 391 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 392 hw->wiphy->n_addresses++;
393 }
394
fe0f2de3
IP		 395 iwl_mvm_reset_phy_ctxts(mvm);
396
48849a41 397 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 398
8ca151b5
JB		 399 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
400
401 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
402 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
403 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 404 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 405 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
406 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
407
3d44eebf
ES		 408 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
409 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
410 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
411 }
412
8ca151b5
JB		 413 hw->wiphy->hw_version = mvm->trans->hw_id;
414
ade50652 415 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 416 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
417 else
418 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
419
6efaaf33
EG		 420 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
421 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
422 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
423 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
424 /* we create the 802.11 header and zero length SSID IE. */
425 hw->wiphy->max_sched_scan_ie_len =
426 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
427 }
35a000b7 428
8ca151b5 429 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 430 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 431 NL80211_FEATURE_P2P_GO_OPPPS |
432 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 433 NL80211_FEATURE_STATIC_SMPS |
434 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 435
f1daa00e
AO		 436 if (mvm->fw->ucode_capa.capa[0] &
437 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
438 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 439 if (mvm->fw->ucode_capa.capa[0] &
440 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
441 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 442
73897bd1
AO		 443 if (mvm->fw->ucode_capa.capa[0] &
444 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
445 hw->wiphy->features |=
446 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
447
448 if (mvm->fw->ucode_capa.capa[0] &
449 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
450 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
451
8ca151b5
JB		 452 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
453
e36e5433 454 /* currently FW API supports only one optional cipher scheme */
9ddca860 455 if (mvm->fw->cs[0].cipher) {
e36e5433 456 mvm->hw->n_cipher_schemes = 1;
9ddca860 457 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 458 }
459
8ca151b5 460#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 461 if (iwl_mvm_is_d0i3_supported(mvm) &&
462 device_can_wakeup(mvm->trans->dev)) {
463 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
464 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 465 }
466
467 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 468 mvm->trans->ops->d3_suspend &&
469 mvm->trans->ops->d3_resume &&
470 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 471 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
472 WIPHY_WOWLAN_DISCONNECT |
473 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
474 WIPHY_WOWLAN_RFKILL_RELEASE |
475 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 476 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 477 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
478 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
479 WIPHY_WOWLAN_4WAY_HANDSHAKE;
480
481 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
482 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
483 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 484 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 485 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
486 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 487 }
488#endif
489
77736923
EP		 490#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
491 /* assign default bcast filtering configuration */
492 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
493#endif
494
8ca151b5
JB		 495 ret = iwl_mvm_leds_init(mvm);
496 if (ret)
497 return ret;
498
d8f1c515
AN		 499 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
500 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
501 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
502 }
503
1d3c3f63
AN		 504 if (mvm->fw->ucode_capa.capa[0] &
505 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
506 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
507 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
508 }
509
b7327d89
EG		 510 ret = ieee80211_register_hw(mvm->hw);
511 if (ret)
512 iwl_mvm_leds_exit(mvm);
513
514 return ret;
8ca151b5
JB		 515}
516
b2492501
AN		 517static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
518 struct ieee80211_sta *sta,
519 struct sk_buff *skb)
520{
521 struct iwl_mvm_sta *mvmsta;
522 bool defer = false;
523
524 /*
525 * double check the IN_D0I3 flag both before and after
526 * taking the spinlock, in order to prevent taking
527 * the spinlock when not needed.
528 */
529 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
530 return false;
531
532 spin_lock(&mvm->d0i3_tx_lock);
533 /*
534 * testing the flag again ensures the skb dequeue
535 * loop (on d0i3 exit) hasn't run yet.
536 */
537 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
538 goto out;
539
540 mvmsta = iwl_mvm_sta_from_mac80211(sta);
541 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
542 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
543 goto out;
544
545 __skb_queue_tail(&mvm->d0i3_tx, skb);
546 ieee80211_stop_queues(mvm->hw);
547
548 /* trigger wakeup */
549 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
550 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
551
552 defer = true;
553out:
554 spin_unlock(&mvm->d0i3_tx_lock);
555 return defer;
556}
557
8ca151b5
JB		 558static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
559 struct ieee80211_tx_control *control,
560 struct sk_buff *skb)
561{
562 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 563 struct ieee80211_sta *sta = control->sta;
564 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
565 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 566
9ee718aa
EL		 567 if (iwl_mvm_is_radio_killed(mvm)) {
568 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 569 goto drop;
570 }
571
398e8c6c 572 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 573 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
574 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 575 goto drop;
576
3e56eadf
JB		 577 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
578 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
579 ieee80211_is_mgmt(hdr->frame_control) &&
580 !ieee80211_is_deauth(hdr->frame_control) &&
581 !ieee80211_is_disassoc(hdr->frame_control) &&
582 !ieee80211_is_action(hdr->frame_control)))
583 sta = NULL;
584
585 if (sta) {
b2492501
AN		 586 if (iwl_mvm_defer_tx(mvm, sta, skb))
587 return;
3e56eadf 588 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 589 goto drop;
590 return;
591 }
592
593 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
594 goto drop;
595 return;
596 drop:
597 ieee80211_free_txskb(hw, skb);
598}
599
205e2210
EG		 600static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
601{
602 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
603 return false;
604 return true;
605}
606
607static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
608{
609 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
610 return false;
611 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
612 return true;
613
614 /* enabled by default */
615 return true;
616}
617
8ca151b5
JB		 618static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
619 struct ieee80211_vif *vif,
620 enum ieee80211_ampdu_mlme_action action,
621 struct ieee80211_sta *sta, u16 tid,
622 u16 *ssn, u8 buf_size)
623{
624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
625 int ret;
b2492501 626 bool tx_agg_ref = false;
8ca151b5
JB		 627
628 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
629 sta->addr, tid, action);
630
631 if (!(mvm->nvm_data->sku_cap_11n_enable))
632 return -EACCES;
633
b2492501 634 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 635 switch (action) {
636 case IEEE80211_AMPDU_TX_START:
637 case IEEE80211_AMPDU_TX_STOP_CONT:
638 case IEEE80211_AMPDU_TX_STOP_FLUSH:
639 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
640 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 641 /*
9256c205
EP		 642 * for tx start, wait synchronously until D0i3 exit to
643 * get the correct sequence number for the tid.
644 * additionally, some other ampdu actions use direct
645 * target access, which is not handled automatically
646 * by the trans layer (unlike commands), so wait for
647 * d0i3 exit in these cases as well.
b2492501 648 */
d40fc489
GG		 649 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
650 if (ret)
651 return ret;
652
653 tx_agg_ref = true;
9256c205
EP		 654 break;
655 default:
656 break;
b2492501
AN		 657 }
658
8ca151b5
JB		 659 mutex_lock(&mvm->mutex);
660
661 switch (action) {
662 case IEEE80211_AMPDU_RX_START:
205e2210 663 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 664 ret = -EINVAL;
665 break;
666 }
667 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
668 break;
669 case IEEE80211_AMPDU_RX_STOP:
670 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
671 break;
672 case IEEE80211_AMPDU_TX_START:
205e2210 673 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 674 ret = -EINVAL;
675 break;
676 }
8ca151b5
JB		 677 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
678 break;
679 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 680 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
681 break;
8ca151b5
JB		 682 case IEEE80211_AMPDU_TX_STOP_FLUSH:
683 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 684 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 685 break;
686 case IEEE80211_AMPDU_TX_OPERATIONAL:
687 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
688 break;
689 default:
690 WARN_ON_ONCE(1);
691 ret = -EINVAL;
692 break;
693 }
694 mutex_unlock(&mvm->mutex);
695
b2492501
AN		 696 /*
697 * If the tid is marked as started, we won't use it for offloaded
698 * traffic on the next D0i3 entry. It's safe to unref.
699 */
700 if (tx_agg_ref)
701 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
702
8ca151b5
JB		 703 return ret;
704}
705
706static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
707 struct ieee80211_vif *vif)
708{
709 struct iwl_mvm *mvm = data;
710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
711
712 mvmvif->uploaded = false;
713 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
714
8ca151b5
JB		 715 spin_lock_bh(&mvm->time_event_lock);
716 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
717 spin_unlock_bh(&mvm->time_event_lock);
718
fe0f2de3 719 mvmvif->phy_ctxt = NULL;
8a275bad 720 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 721}
722
aadede6e
JB		 723static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
724 const void *data, size_t datalen)
725{
726 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
727 ssize_t bytes_read;
728 ssize_t bytes_read_trans;
729
730 if (offset < dump_ptrs->op_mode_len) {
731 bytes_read = min_t(ssize_t, count,
732 dump_ptrs->op_mode_len - offset);
733 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
734 bytes_read);
735 offset += bytes_read;
736 count -= bytes_read;
737
738 if (count == 0)
739 return bytes_read;
740 } else {
741 bytes_read = 0;
742 }
743
744 if (!dump_ptrs->trans_ptr)
745 return bytes_read;
746
747 offset -= dump_ptrs->op_mode_len;
748 bytes_read_trans = min_t(ssize_t, count,
749 dump_ptrs->trans_ptr->len - offset);
750 memcpy(buffer + bytes_read,
751 (u8 *)dump_ptrs->trans_ptr->data + offset,
752 bytes_read_trans);
753
754 return bytes_read + bytes_read_trans;
755}
756
757static void iwl_mvm_free_coredump(const void *data)
758{
759 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
760
761 vfree(fw_error_dump->op_mode_ptr);
762 vfree(fw_error_dump->trans_ptr);
763 kfree(fw_error_dump);
764}
765
04fd2c28
LK		 766static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
767 struct iwl_fw_error_dump_data **dump_data)
768{
769 struct iwl_fw_error_dump_fifo *fifo_hdr;
770 u32 *fifo_data;
771 u32 fifo_len;
772 unsigned long flags;
773 int i, j;
774
775 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
776 return;
777
778 /* Pull RXF data from all RXFs */
779 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
780 /*
781 * Keep aside the additional offset that might be needed for
782 * next RXF
783 */
784 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
785
786 fifo_hdr = (void *)(*dump_data)->data;
787 fifo_data = (void *)fifo_hdr->data;
788 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
789
790 /* No need to try to read the data if the length is 0 */
791 if (fifo_len == 0)
792 continue;
793
794 /* Add a TLV for the RXF */
795 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
796 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
797
798 fifo_hdr->fifo_num = cpu_to_le32(i);
799 fifo_hdr->available_bytes =
800 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
801 RXF_RD_D_SPACE +
802 offset_diff));
803 fifo_hdr->wr_ptr =
804 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
805 RXF_RD_WR_PTR +
806 offset_diff));
807 fifo_hdr->rd_ptr =
808 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
809 RXF_RD_RD_PTR +
810 offset_diff));
811 fifo_hdr->fence_ptr =
812 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
813 RXF_RD_FENCE_PTR +
814 offset_diff));
815 fifo_hdr->fence_mode =
816 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
817 RXF_SET_FENCE_MODE +
818 offset_diff));
819
820 /* Lock fence */
821 iwl_trans_write_prph(mvm->trans,
822 RXF_SET_FENCE_MODE + offset_diff, 0x1);
823 /* Set fence pointer to the same place like WR pointer */
824 iwl_trans_write_prph(mvm->trans,
825 RXF_LD_WR2FENCE + offset_diff, 0x1);
826 /* Set fence offset */
827 iwl_trans_write_prph(mvm->trans,
828 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
829 0x0);
830
831 /* Read FIFO */
832 fifo_len /= sizeof(u32); /* Size in DWORDS */
833 for (j = 0; j < fifo_len; j++)
834 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
835 RXF_FIFO_RD_FENCE_INC +
836 offset_diff);
837 *dump_data = iwl_fw_error_next_data(*dump_data);
838 }
839
840 /* Pull TXF data from all TXFs */
841 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
842 /* Mark the number of TXF we're pulling now */
843 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
844
845 fifo_hdr = (void *)(*dump_data)->data;
846 fifo_data = (void *)fifo_hdr->data;
847 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
848
849 /* No need to try to read the data if the length is 0 */
850 if (fifo_len == 0)
851 continue;
852
853 /* Add a TLV for the FIFO */
854 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
855 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
856
857 fifo_hdr->fifo_num = cpu_to_le32(i);
858 fifo_hdr->available_bytes =
859 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
860 TXF_FIFO_ITEM_CNT));
861 fifo_hdr->wr_ptr =
862 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
863 TXF_WR_PTR));
864 fifo_hdr->rd_ptr =
865 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
866 TXF_RD_PTR));
867 fifo_hdr->fence_ptr =
868 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
869 TXF_FENCE_PTR));
870 fifo_hdr->fence_mode =
871 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
872 TXF_LOCK_FENCE));
873
874 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
875 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
876 TXF_WR_PTR);
877
878 /* Dummy-read to advance the read pointer to the head */
879 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
880
881 /* Read FIFO */
882 fifo_len /= sizeof(u32); /* Size in DWORDS */
883 for (j = 0; j < fifo_len; j++)
884 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
885 TXF_READ_MODIFY_DATA);
886 *dump_data = iwl_fw_error_next_data(*dump_data);
887 }
888
889 iwl_trans_release_nic_access(mvm->trans, &flags);
890}
891
4bfa47f3 892void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 893{
894 struct iwl_fw_error_dump_file *dump_file;
895 struct iwl_fw_error_dump_data *dump_data;
896 struct iwl_fw_error_dump_info *dump_info;
a549b296 897 struct iwl_fw_error_dump_mem *dump_mem;
48eb7b34 898 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 899 u32 sram_len, sram_ofs;
04fd2c28 900 u32 file_len, fifo_data_len = 0;
addfaada 901 u32 smem_len = mvm->cfg->smem_len;
86138324 902 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 903
904 lockdep_assert_held(&mvm->mutex);
905
addfaada 906 /* W/A for 8000 HW family A-step */
86138324
IY		 907 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
908 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
909 if (smem_len)
910 smem_len = 0x38000;
911
912 if (sram2_len)
913 sram2_len = 0x10000;
914 }
addfaada 915
aadede6e 916 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 917 if (!fw_error_dump)
918 return;
919
f53bf4c7
LK		 920 /* SRAM - include stack CCM if driver knows the values for it */
921 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
922 const struct fw_img *img;
923
924 img = &mvm->fw->img[mvm->cur_ucode];
925 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
926 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
927 } else {
928 sram_ofs = mvm->cfg->dccm_offset;
929 sram_len = mvm->cfg->dccm_len;
930 }
655e6d6d 931
04fd2c28
LK		 932 /* reading RXF/TXF sizes */
933 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
934 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
935 int i;
936
937 fifo_data_len = 0;
938
939 /* Count RXF size */
940 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
941 if (!mem_cfg->rxfifo_size[i])
942 continue;
943
944 /* Add header info */
945 fifo_data_len += mem_cfg->rxfifo_size[i] +
946 sizeof(*dump_data) +
947 sizeof(struct iwl_fw_error_dump_fifo);
948 }
949
950 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
951 if (!mem_cfg->txfifo_size[i])
952 continue;
655e6d6d 953
04fd2c28
LK		 954 /* Add header info */
955 fifo_data_len += mem_cfg->txfifo_size[i] +
956 sizeof(*dump_data) +
957 sizeof(struct iwl_fw_error_dump_fifo);
958 }
959 }
655e6d6d
EG		 960
961 file_len = sizeof(*dump_file) +
04fd2c28 962 sizeof(*dump_data) * 2 +
a549b296 963 sram_len + sizeof(*dump_mem) +
04fd2c28 964 fifo_data_len +
655e6d6d
EG		 965 sizeof(*dump_info);
966
addfaada
LK		 967 /* Make room for the SMEM, if it exists */
968 if (smem_len)
a549b296 969 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 970
86138324
IY		 971 /* Make room for the secondary SRAM, if it exists */
972 if (sram2_len)
973 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
974
5bfe6f53 975 dump_file = vzalloc(file_len);
48eb7b34
EG		 976 if (!dump_file) {
977 kfree(fw_error_dump);
655e6d6d 978 return;
48eb7b34 979 }
655e6d6d 980
48eb7b34 981 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 982
983 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 984 dump_data = (void *)dump_file->data;
985
986 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
987 dump_data->len = cpu_to_le32(sizeof(*dump_info));
988 dump_info = (void *) dump_data->data;
989 dump_info->device_family =
990 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
991 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
992 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 993 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 994 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
995 sizeof(dump_info->fw_human_readable));
996 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
997 sizeof(dump_info->dev_human_readable));
998 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
999 sizeof(dump_info->bus_human_readable));
1000
1001 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1002 /* We only dump the FIFOs if the FW is in error state */
1003 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1004 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1005
a549b296
EG		 1006 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1007 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1008 dump_mem = (void *)dump_data->data;
1009 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1010 dump_mem->offset = cpu_to_le32(sram_ofs);
1011 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1012 sram_len);
1013
addfaada
LK		 1014 if (smem_len) {
1015 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1016 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1017 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1018 dump_mem = (void *)dump_data->data;
1019 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1020 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1021 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1022 dump_mem->data, smem_len);
addfaada
LK		 1023 }
1024
86138324
IY		 1025 if (sram2_len) {
1026 dump_data = iwl_fw_error_next_data(dump_data);
1027 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1028 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1029 dump_mem = (void *)dump_data->data;
1030 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1031 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1032 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1033 dump_mem->data, sram2_len);
1034 }
1035
48eb7b34
EG		 1036 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1037 fw_error_dump->op_mode_len = file_len;
1038 if (fw_error_dump->trans_ptr)
1039 file_len += fw_error_dump->trans_ptr->len;
1040 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1041
aadede6e
JB		 1042 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1043 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
655e6d6d 1044}
655e6d6d 1045
8ca151b5
JB		 1046static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1047{
58629d9d
JB		 1048 /* clear the D3 reconfig, we only need it to avoid dumping a
1049 * firmware coredump on reconfiguration, we shouldn't do that
1050 * on D3->D0 transition
1051 */
1052 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
1053 iwl_mvm_fw_error_dump(mvm);
1bd3cbc1 1054
744cb695
EP		 1055 /* cleanup all stale references (scan, roc), but keep the
1056 * ucode_down ref until reconfig is complete
1057 */
1058 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1059
8ca151b5 1060 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1061
1062 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 1063 mvm->ps_disabled = false;
31b8b343 1064 mvm->calibrating = false;
8ca151b5
JB		 1065
1066 /* just in case one was running */
1067 ieee80211_remain_on_channel_expired(mvm->hw);
1068
1069 ieee80211_iterate_active_interfaces_atomic(
1070 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1071 iwl_mvm_cleanup_iterator, mvm);
1072
fe0f2de3 1073 mvm->p2p_device_vif = NULL;
37577fe2 1074 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1075
1076 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 1077 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1078 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1079 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1080 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1081 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1082 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1083 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1084 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1085 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1086
1087 ieee80211_wake_queues(mvm->hw);
1088
228670b2
EP		 1089 /* clear any stale d0i3 state */
1090 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1091
8ca151b5 1092 mvm->vif_count = 0;
113a0447 1093 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 1094}
1095
a0a09243 1096int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1097{
8ca151b5
JB		 1098 int ret;
1099
a0a09243 1100 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1101
1102 /* Clean up some internal and mac80211 state on restart */
1103 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1104 iwl_mvm_restart_cleanup(mvm);
1105
1106 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1107
1108 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1109 /* Something went wrong - we need to finish some cleanup
1110 * that normally iwl_mvm_mac_restart_complete() below
1111 * would do.
1112 */
1113 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1114 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1115 }
1116
a0a09243
LC		 1117 return ret;
1118}
1119
1120static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1121{
1122 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1123 int ret;
1124
37948fcf
EP		 1125 /* Some hw restart cleanups must not hold the mutex */
1126 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1127 /*
1128 * Make sure we are out of d0i3. This is needed
1129 * to make sure the reference accounting is correct
1130 * (and there is no stale d0i3_exit_work).
1131 */
1132 wait_event_timeout(mvm->d0i3_exit_waitq,
1133 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1134 &mvm->status),
1135 HZ);
1136 }
1137
a0a09243
LC		 1138 mutex_lock(&mvm->mutex);
1139 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1140 mutex_unlock(&mvm->mutex);
1141
1142 return ret;
1143}
1144
cf2c92d8 1145static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1146{
8ca151b5
JB		 1147 int ret;
1148
1149 mutex_lock(&mvm->mutex);
1150
1151 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1152 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 1153 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1154 if (ret)
1155 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1156 ret);
1157
7498cf4c
EP		 1158 /* allow transport/FW low power modes */
1159 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1160
cbd2ae2d
AN		 1161 /*
1162 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1163 * of packets the FW sent out, so we must reconnect.
1164 */
1165 iwl_mvm_teardown_tdls_peers(mvm);
1166
8ca151b5
JB		 1167 mutex_unlock(&mvm->mutex);
1168}
1169
088070a2
EP		 1170static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1171{
1172 bool exit_now;
1173
1174 if (!iwl_mvm_is_d0i3_supported(mvm))
1175 return;
1176
1177 mutex_lock(&mvm->d0i3_suspend_mutex);
1178 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1179 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1180 &mvm->d0i3_suspend_flags);
1181 mutex_unlock(&mvm->d0i3_suspend_mutex);
1182
1183 if (exit_now) {
1184 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1185 _iwl_mvm_exit_d0i3(mvm);
1186 }
6735943f
EP		 1187
1188 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1189 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1190 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1191 &mvm->status),
1192 HZ))
1193 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1194}
1195
cf2c92d8
EP		 1196static void
1197iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1198 enum ieee80211_reconfig_type reconfig_type)
1199{
1200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1201
1202 switch (reconfig_type) {
1203 case IEEE80211_RECONFIG_TYPE_RESTART:
1204 iwl_mvm_restart_complete(mvm);
1205 break;
1206 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1207 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1208 break;
1209 }
1210}
1211
a0a09243 1212void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1213{
a0a09243 1214 lockdep_assert_held(&mvm->mutex);
7498cf4c 1215
0a79a0c0
EP		 1216 /*
1217 * Disallow low power states when the FW is down by taking
1218 * the UCODE_DOWN ref. in case of ongoing hw restart the
1219 * ref is already taken, so don't take it again.
1220 */
1221 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1222 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1223
8ca151b5
JB		 1224 /* async_handlers_wk is now blocked */
1225
1226 /*
1227 * The work item could be running or queued if the
1228 * ROC time event stops just as we get here.
1229 */
1230 cancel_work_sync(&mvm->roc_done_wk);
1231
1232 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1233
1234 iwl_mvm_async_handlers_purge(mvm);
1235 /* async_handlers_list is empty and will stay empty: HW is stopped */
1236
1237 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1238 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1239
0a79a0c0
EP		 1240 /*
1241 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1242 * won't be called in this case).
1243 */
1244 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1245
bc44886d 1246 mvm->ucode_loaded = false;
a0a09243 1247}
bc44886d 1248
a0a09243
LC		 1249static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1250{
1251 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1252
1253 flush_work(&mvm->d0i3_exit_work);
1254 flush_work(&mvm->async_handlers_wk);
4bfa47f3 1255 flush_work(&mvm->fw_error_dump_wk);
a0a09243
LC		 1256
1257 mutex_lock(&mvm->mutex);
1258 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1259 mutex_unlock(&mvm->mutex);
1260
1261 /*
1262 * The worker might have been waiting for the mutex, let it run and
1263 * discover that its list is now empty.
1264 */
1265 cancel_work_sync(&mvm->async_handlers_wk);
1266}
1267
fe0f2de3
IP		 1268static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1269{
1270 u16 i;
1271
1272 lockdep_assert_held(&mvm->mutex);
1273
1274 for (i = 0; i < NUM_PHY_CTX; i++)
1275 if (!mvm->phy_ctxts[i].ref)
1276 return &mvm->phy_ctxts[i];
1277
1278 IWL_ERR(mvm, "No available PHY context\n");
1279 return NULL;
1280}
1281
ee9c6cb0
EG		 1282static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1283 s8 tx_power)
1284{
1285 /* FW is in charge of regulatory enforcement */
1286 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1287 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1288 .pwr_restriction = cpu_to_le16(tx_power),
1289 };
1290
a1022927 1291 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1292 sizeof(reduce_txpwr_cmd),
1293 &reduce_txpwr_cmd);
1294}
1295
8ca151b5
JB		 1296static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1297 struct ieee80211_vif *vif)
1298{
1299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1300 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1301 int ret;
1302
d40fc489
GG		 1303 /*
1304 * make sure D0i3 exit is completed, otherwise a target access
1305 * during tx queue configuration could be done when still in
1306 * D0i3 state.
1307 */
1308 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1309 if (ret)
1310 return ret;
1311
8ca151b5
JB		 1312 /*
1313 * Not much to do here. The stack will not allow interface
1314 * types or combinations that we didn't advertise, so we
1315 * don't really have to check the types.
1316 */
1317
1318 mutex_lock(&mvm->mutex);
1319
e89044d7 1320 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1321 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1322 if (ret)
1323 goto out_unlock;
1324
1c2abf72 1325 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1326 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1327 mvm->vif_count++;
ea183d02 1328
8ca151b5
JB		 1329 /*
1330 * The AP binding flow can be done only after the beacon
1331 * template is configured (which happens only in the mac80211
1332 * start_ap() flow), and adding the broadcast station can happen
1333 * only after the binding.
1334 * In addition, since modifying the MAC before adding a bcast
1335 * station is not allowed by the FW, delay the adding of MAC context to
1336 * the point where we can also add the bcast station.
1337 * In short: there's not much we can do at this point, other than
1338 * allocating resources :)
1339 */
5023d966
JB		 1340 if (vif->type == NL80211_IFTYPE_AP ||
1341 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1342 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1343 if (ret) {
1344 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1345 goto out_release;
1346 }
1347
77740cb4 1348 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1349 goto out_unlock;
1350 }
1351
8ca151b5
JB		 1352 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1353 if (ret)
1354 goto out_release;
1355
999609f1 1356 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1357 if (ret)
fd66fc1c 1358 goto out_remove_mac;
8ca151b5 1359
7df15b1e 1360 /* beacon filtering */
a1022927 1361 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1362 if (ret)
1363 goto out_remove_mac;
1364
7df15b1e 1365 if (!mvm->bf_allowed_vif &&
73e5f2c5 1366 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1367 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1368 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1369 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1370 }
1371
8ca151b5
JB		 1372 /*
1373 * P2P_DEVICE interface does not have a channel context assigned to it,
1374 * so a dedicated PHY context is allocated to it and the corresponding
1375 * MAC context is bound to it at this stage.
1376 */
1377 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1378
fe0f2de3
IP		 1379 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1380 if (!mvmvif->phy_ctxt) {
1381 ret = -ENOSPC;
bd3351ba 1382 goto out_free_bf;
fe0f2de3 1383 }
8ca151b5 1384
53a9d61e 1385 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1386 ret = iwl_mvm_binding_add_vif(mvm, vif);
1387 if (ret)
53a9d61e 1388 goto out_unref_phy;
8ca151b5 1389
013290aa 1390 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1391 if (ret)
1392 goto out_unbind;
1393
1394 /* Save a pointer to p2p device vif, so it can later be used to
1395 * update the p2p device MAC when a GO is started/stopped */
1396 mvm->p2p_device_vif = vif;
1397 }
1398
63494374 1399 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1400 goto out_unlock;
1401
1402 out_unbind:
1403 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1404 out_unref_phy:
fe0f2de3 1405 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1406 out_free_bf:
1407 if (mvm->bf_allowed_vif == mvmvif) {
1408 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1409 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1410 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1411 }
8ca151b5
JB		 1412 out_remove_mac:
1413 mvmvif->phy_ctxt = NULL;
1414 iwl_mvm_mac_ctxt_remove(mvm, vif);
1415 out_release:
5ee2b215
AB		 1416 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1417 mvm->vif_count--;
1c2abf72 1418
8ca151b5
JB		 1419 iwl_mvm_mac_ctxt_release(mvm, vif);
1420 out_unlock:
1421 mutex_unlock(&mvm->mutex);
1422
d40fc489
GG		 1423 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1424
8ca151b5
JB		 1425 return ret;
1426}
1427
38a12b5b
JB		 1428static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1429 struct ieee80211_vif *vif)
8ca151b5 1430{
d92b732e 1431 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1432
1433 if (tfd_msk) {
1434 mutex_lock(&mvm->mutex);
1435 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1436 mutex_unlock(&mvm->mutex);
1437 }
1438
1439 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1440 /*
1441 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1442 * We assume here that all the packets sent to the OFFCHANNEL
1443 * queue are sent in ROC session.
1444 */
1445 flush_work(&mvm->roc_done_wk);
1446 } else {
1447 /*
1448 * By now, all the AC queues are empty. The AGG queues are
1449 * empty too. We already got all the Tx responses for all the
1450 * packets in the queues. The drain work can have been
0742a75a 1451 * triggered. Flush it.
8ca151b5
JB		 1452 */
1453 flush_work(&mvm->sta_drained_wk);
1454 }
38a12b5b
JB		 1455}
1456
1457static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1458 struct ieee80211_vif *vif)
1459{
1460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1461 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1462
1463 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1464
1465 mutex_lock(&mvm->mutex);
1466
7df15b1e
HG		 1467 if (mvm->bf_allowed_vif == mvmvif) {
1468 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1469 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1470 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1471 }
1472
63494374
JB		 1473 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1474
8ca151b5
JB		 1475 /*
1476 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1477 * interface is be handled as part of the stop_ap flow.
8ca151b5 1478 */
5023d966
JB		 1479 if (vif->type == NL80211_IFTYPE_AP ||
1480 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1481#ifdef CONFIG_NL80211_TESTMODE
1482 if (vif == mvm->noa_vif) {
1483 mvm->noa_vif = NULL;
1484 mvm->noa_duration = 0;
1485 }
1486#endif
013290aa 1487 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1488 goto out_release;
1489 }
1490
1491 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1492 mvm->p2p_device_vif = NULL;
013290aa 1493 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1494 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1495 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1496 mvmvif->phy_ctxt = NULL;
1497 }
1498
5ee2b215 1499 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1500 mvm->vif_count--;
1c2abf72 1501
999609f1 1502 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1503 iwl_mvm_mac_ctxt_remove(mvm, vif);
1504
1505out_release:
1506 iwl_mvm_mac_ctxt_release(mvm, vif);
1507 mutex_unlock(&mvm->mutex);
1508}
1509
1510static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1511{
8ca151b5
JB		 1512 return 0;
1513}
1514
e59647ea
EP		 1515struct iwl_mvm_mc_iter_data {
1516 struct iwl_mvm *mvm;
1517 int port_id;
1518};
1519
1520static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1521 struct ieee80211_vif *vif)
1522{
1523 struct iwl_mvm_mc_iter_data *data = _data;
1524 struct iwl_mvm *mvm = data->mvm;
1525 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1526 int ret, len;
1527
1528 /* if we don't have free ports, mcast frames will be dropped */
1529 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1530 return;
1531
1532 if (vif->type != NL80211_IFTYPE_STATION ||
1533 !vif->bss_conf.assoc)
1534 return;
1535
1536 cmd->port_id = data->port_id++;
1537 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1538 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1539
1c4abec0 1540 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1541 if (ret)
1542 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1543}
1544
1545static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1546{
1547 struct iwl_mvm_mc_iter_data iter_data = {
1548 .mvm = mvm,
88f2fd73
MG		 1549 };
1550
e59647ea
EP		 1551 lockdep_assert_held(&mvm->mutex);
1552
1553 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1554 return;
1555
1c4abec0 1556 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1557 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1558 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1559}
1560
e59647ea
EP		 1561static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1562 struct netdev_hw_addr_list *mc_list)
8ca151b5 1563{
e59647ea
EP		 1564 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1565 struct iwl_mcast_filter_cmd *cmd;
1566 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1567 int addr_count;
1568 bool pass_all;
e59647ea
EP		 1569 int len;
1570
f3bd58f4
MS		 1571 addr_count = netdev_hw_addr_list_count(mc_list);
1572 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1573 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1574 if (pass_all)
e59647ea 1575 addr_count = 0;
e59647ea
EP		 1576
1577 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1578 cmd = kzalloc(len, GFP_ATOMIC);
1579 if (!cmd)
1580 return 0;
1581
1582 if (pass_all) {
1583 cmd->pass_all = 1;
1584 return (u64)(unsigned long)cmd;
1585 }
1586
1587 netdev_hw_addr_list_for_each(addr, mc_list) {
1588 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1589 cmd->count, addr->addr);
1590 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1591 addr->addr, ETH_ALEN);
1592 cmd->count++;
1593 }
1594
1595 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1596}
1597
1598static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1599 unsigned int changed_flags,
1600 unsigned int *total_flags,
1601 u64 multicast)
1602{
e59647ea
EP		 1603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1604 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1605
e59647ea 1606 mutex_lock(&mvm->mutex);
51b6b9e0 1607
e59647ea
EP		 1608 /* replace previous configuration */
1609 kfree(mvm->mcast_filter_cmd);
1610 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1611
e59647ea
EP		 1612 if (!cmd)
1613 goto out;
51b6b9e0 1614
e59647ea
EP		 1615 iwl_mvm_recalc_multicast(mvm);
1616out:
1617 mutex_unlock(&mvm->mutex);
1618 *total_flags = 0;
51b6b9e0
EG		 1619}
1620
c87163b9
EP		 1621#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1622struct iwl_bcast_iter_data {
1623 struct iwl_mvm *mvm;
1624 struct iwl_bcast_filter_cmd *cmd;
1625 u8 current_filter;
1626};
1627
1628static void
1629iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1630 const struct iwl_fw_bcast_filter *in_filter,
1631 struct iwl_fw_bcast_filter *out_filter)
1632{
1633 struct iwl_fw_bcast_filter_attr *attr;
1634 int i;
1635
1636 memcpy(out_filter, in_filter, sizeof(*out_filter));
1637
1638 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1639 attr = &out_filter->attrs[i];
1640
1641 if (!attr->mask)
1642 break;
1643
2ee8f021
EP		 1644 switch (attr->reserved1) {
1645 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1646 if (vif->bss_conf.arp_addr_cnt != 1) {
1647 attr->mask = 0;
1648 continue;
1649 }
1650
1651 attr->val = vif->bss_conf.arp_addr_list[0];
1652 break;
1653 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1654 attr->val = *(__be32 *)&vif->addr[2];
1655 break;
1656 default:
1657 break;
1658 }
1659 attr->reserved1 = 0;
c87163b9
EP		 1660 out_filter->num_attrs++;
1661 }
1662}
1663
1664static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1665 struct ieee80211_vif *vif)
1666{
1667 struct iwl_bcast_iter_data *data = _data;
1668 struct iwl_mvm *mvm = data->mvm;
1669 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1670 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1671 struct iwl_fw_bcast_mac *bcast_mac;
1672 int i;
1673
1674 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1675 return;
1676
1677 bcast_mac = &cmd->macs[mvmvif->id];
1678
e48393e8
IP		 1679 /*
1680 * enable filtering only for associated stations, but not for P2P
1681 * Clients
1682 */
1683 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1684 !vif->bss_conf.assoc)
c87163b9
EP		 1685 return;
1686
1687 bcast_mac->default_discard = 1;
1688
1689 /* copy all configured filters */
1690 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1691 /*
1692 * Make sure we don't exceed our filters limit.
1693 * if there is still a valid filter to be configured,
1694 * be on the safe side and just allow bcast for this mac.
1695 */
1696 if (WARN_ON_ONCE(data->current_filter >=
1697 ARRAY_SIZE(cmd->filters))) {
1698 bcast_mac->default_discard = 0;
1699 bcast_mac->attached_filters = 0;
1700 break;
1701 }
1702
1703 iwl_mvm_set_bcast_filter(vif,
1704 &mvm->bcast_filters[i],
1705 &cmd->filters[data->current_filter]);
1706
1707 /* skip current filter if it contains no attributes */
1708 if (!cmd->filters[data->current_filter].num_attrs)
1709 continue;
1710
1711 /* attach the filter to current mac */
1712 bcast_mac->attached_filters |=
1713 cpu_to_le16(BIT(data->current_filter));
1714
1715 data->current_filter++;
1716 }
1717}
1718
de06a59e
EP		 1719bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1720 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1721{
c87163b9
EP		 1722 struct iwl_bcast_iter_data iter_data = {
1723 .mvm = mvm,
de06a59e 1724 .cmd = cmd,
c87163b9
EP		 1725 };
1726
3b8983b1
MS		 1727 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1728 return false;
1729
de06a59e
EP		 1730 memset(cmd, 0, sizeof(*cmd));
1731 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1732 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1733
1734#ifdef CONFIG_IWLWIFI_DEBUGFS
1735 /* use debugfs filters/macs if override is configured */
1736 if (mvm->dbgfs_bcast_filtering.override) {
1737 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1738 sizeof(cmd->filters));
1739 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1740 sizeof(cmd->macs));
1741 return true;
1742 }
1743#endif
c87163b9
EP		 1744
1745 /* if no filters are configured, do nothing */
1746 if (!mvm->bcast_filters)
de06a59e 1747 return false;
c87163b9
EP		 1748
1749 /* configure and attach these filters for each associated sta vif */
1750 ieee80211_iterate_active_interfaces(
1751 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1752 iwl_mvm_bcast_filter_iterator, &iter_data);
1753
de06a59e
EP		 1754 return true;
1755}
1756static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1757 struct ieee80211_vif *vif)
1758{
1759 struct iwl_bcast_filter_cmd cmd;
1760
1761 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1762 return 0;
1763
1764 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1765 return 0;
1766
a1022927 1767 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1768 sizeof(cmd), &cmd);
1769}
1770#else
1771static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1772 struct ieee80211_vif *vif)
1773{
1774 return 0;
1775}
1776#endif
1777
8ca151b5
JB		 1778static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1779 struct ieee80211_vif *vif,
1780 struct ieee80211_bss_conf *bss_conf,
1781 u32 changes)
1782{
1783 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1784 int ret;
1785
6e97b0d2
IP		 1786 /*
1787 * Re-calculate the tsf id, as the master-slave relations depend on the
1788 * beacon interval, which was not known when the station interface was
1789 * added.
1790 */
1791 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1792 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1793
3dfd3a97
JB		 1794 /*
1795 * If we're not associated yet, take the (new) BSSID before associating
1796 * so the firmware knows. If we're already associated, then use the old
1797 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1798 * branch for disassociation below.
1799 */
1800 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1801 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1802
1803 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1804 if (ret)
1805 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1806
3dfd3a97
JB		 1807 /* after sending it once, adopt mac80211 data */
1808 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1809 mvmvif->associated = bss_conf->assoc;
1810
8ca151b5
JB		 1811 if (changes & BSS_CHANGED_ASSOC) {
1812 if (bss_conf->assoc) {
1813 /* add quota for this interface */
0166230c 1814 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1815 if (ret) {
1816 IWL_ERR(mvm, "failed to update quotas\n");
1817 return;
1818 }
016d27e1
JB		 1819
1820 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1821 &mvm->status)) {
1822 /*
1823 * If we're restarting then the firmware will
1824 * obviously have lost synchronisation with
1825 * the AP. It will attempt to synchronise by
1826 * itself, but we can make it more reliable by
1827 * scheduling a session protection time event.
1828 *
1829 * The firmware needs to receive a beacon to
1830 * catch up with synchronisation, use 110% of
1831 * the beacon interval.
1832 *
1833 * Set a large maximum delay to allow for more
1834 * than a single interface.
1835 */
1836 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1837 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1838 5 * dur, false);
016d27e1 1839 }
1f3b0ff8
LE		 1840
1841 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1842 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1843 if (vif->p2p) {
29a90a49 1844 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1845 iwl_mvm_update_smps(mvm, vif,
1846 IWL_MVM_SMPS_REQ_PROT,
1847 IEEE80211_SMPS_DYNAMIC);
1848 }
8ca151b5 1849 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1850 /*
1851 * If update fails - SF might be running in associated
1852 * mode while disassociated - which is forbidden.
1853 */
1854 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1855 "Failed to update SF upon disassociation\n");
1856
8ca151b5
JB		 1857 /* remove AP station now that the MAC is unassoc */
1858 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1859 if (ret)
1860 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1861
1862 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1863 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1864 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1865 /* remove quota for this interface */
0166230c 1866 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1867 if (ret)
1868 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1869
1870 if (vif->p2p)
1871 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1872
1873 /* this will take the cleared BSSID from bss_conf */
1874 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1875 if (ret)
1876 IWL_ERR(mvm,
1877 "failed to update MAC %pM (clear after unassoc)\n",
1878 vif->addr);
8ca151b5 1879 }
a20fd398 1880
e59647ea 1881 iwl_mvm_recalc_multicast(mvm);
c87163b9 1882 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1883
a20fd398
AO		 1884 /* reset rssi values */
1885 mvmvif->bf_data.ave_beacon_signal = 0;
1886
8e484f0b 1887 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1888 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1889 IEEE80211_SMPS_AUTOMATIC);
989c6505 1890 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1891 /*
1892 * We received a beacon _after_ association so
1893 * remove the session protection.
1894 */
1895 iwl_mvm_remove_time_event(mvm, mvmvif,
1896 &mvmvif->time_event_data);
8ca151b5 1897 }
cc87d322
EH		 1898
1899 if (changes & BSS_CHANGED_BEACON_INFO) {
1900 iwl_mvm_sf_update(mvm, vif, false);
1901 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1902 }
1903
1bc10d3b
JB		 1904 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1905 ret = iwl_mvm_power_update_mac(mvm);
1906 if (ret)
1907 IWL_ERR(mvm, "failed to update power mode\n");
1908 }
1909
88f2fd73
MG		 1910 if (changes & BSS_CHANGED_TXPOWER) {
1911 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1912 bss_conf->txpower);
1913 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1914 }
a20fd398
AO		 1915
1916 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1917 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1918 /* reset cqm events tracking */
1919 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1920 if (mvmvif->bf_data.bf_enabled) {
1921 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1922 if (ret)
1923 IWL_ERR(mvm,
1924 "failed to update CQM thresholds\n");
1925 }
a20fd398 1926 }
2ee8f021
EP		 1927
1928 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1929 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1930 iwl_mvm_configure_bcast_filter(mvm, vif);
1931 }
8ca151b5
JB		 1932}
1933
5023d966
JB		 1934static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1935 struct ieee80211_vif *vif)
8ca151b5
JB		 1936{
1937 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1938 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1939 int ret;
1940
576eeee9
EP		 1941 /*
1942 * iwl_mvm_mac_ctxt_add() might read directly from the device
1943 * (the system time), so make sure it is available.
1944 */
1945 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1946 if (ret)
1947 return ret;
1948
8ca151b5
JB		 1949 mutex_lock(&mvm->mutex);
1950
1951 /* Send the beacon template */
1952 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1953 if (ret)
1954 goto out_unlock;
1955
6e97b0d2
IP		 1956 /*
1957 * Re-calculate the tsf id, as the master-slave relations depend on the
1958 * beacon interval, which was not known when the AP interface was added.
1959 */
1960 if (vif->type == NL80211_IFTYPE_AP)
1961 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1962
8ca151b5
JB		 1963 /* Add the mac context */
1964 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1965 if (ret)
1966 goto out_unlock;
1967
1968 /* Perform the binding */
1969 ret = iwl_mvm_binding_add_vif(mvm, vif);
1970 if (ret)
1971 goto out_remove;
1972
8ca151b5
JB		 1973 /* Send the bcast station. At this stage the TBTT and DTIM time events
1974 * are added and applied to the scheduler */
013290aa 1975 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1976 if (ret)
1977 goto out_unbind;
1978
5691e218
IP		 1979 /* must be set before quota calculations */
1980 mvmvif->ap_ibss_active = true;
1981
a11e144e 1982 /* power updated needs to be done before quotas */
999609f1 1983 iwl_mvm_power_update_mac(mvm);
a11e144e 1984
0166230c 1985 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 1986 if (ret)
a11e144e 1987 goto out_quota_failed;
8ca151b5 1988
5023d966 1989 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1990 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1991 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1992
29a90a49
EP		 1993 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1994
8e484f0b 1995 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1996
f697267f
AN		 1997 /* we don't support TDLS during DCM */
1998 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1999 iwl_mvm_teardown_tdls_peers(mvm);
2000
8ca151b5
JB		 2001 mutex_unlock(&mvm->mutex);
2002 return 0;
2003
a11e144e 2004out_quota_failed:
999609f1 2005 iwl_mvm_power_update_mac(mvm);
5691e218 2006 mvmvif->ap_ibss_active = false;
013290aa 2007 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2008out_unbind:
2009 iwl_mvm_binding_remove_vif(mvm, vif);
2010out_remove:
2011 iwl_mvm_mac_ctxt_remove(mvm, vif);
2012out_unlock:
2013 mutex_unlock(&mvm->mutex);
576eeee9 2014 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2015 return ret;
2016}
2017
5023d966
JB		 2018static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2019 struct ieee80211_vif *vif)
8ca151b5
JB		 2020{
2021 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2022 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2023
38a12b5b
JB		 2024 iwl_mvm_prepare_mac_removal(mvm, vif);
2025
8ca151b5
JB		 2026 mutex_lock(&mvm->mutex);
2027
664322fa 2028 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2029 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2030 iwl_mvm_remove_time_event(mvm, mvmvif,
2031 &mvmvif->time_event_data);
664322fa 2032 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2033 }
664322fa 2034
003e5236
AO		 2035 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2036 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2037 mvm->csa_tx_block_bcn_timeout = 0;
2038 }
2039
5023d966 2040 mvmvif->ap_ibss_active = false;
1c87bbad 2041 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2042
8e484f0b 2043 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2044
29a90a49
EP		 2045 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2046
5023d966 2047 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2048 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2049 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2050
0166230c 2051 iwl_mvm_update_quotas(mvm, NULL);
013290aa 2052 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2053 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2054
999609f1 2055 iwl_mvm_power_update_mac(mvm);
a11e144e 2056
8ca151b5
JB		 2057 iwl_mvm_mac_ctxt_remove(mvm, vif);
2058
2059 mutex_unlock(&mvm->mutex);
2060}
2061
5023d966
JB		 2062static void
2063iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2064 struct ieee80211_vif *vif,
2065 struct ieee80211_bss_conf *bss_conf,
2066 u32 changes)
8ca151b5 2067{
be2056fc 2068 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2069
be2056fc
IP		 2070 /* Changes will be applied when the AP/IBSS is started */
2071 if (!mvmvif->ap_ibss_active)
2072 return;
2073
863230da 2074 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2075 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2076 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2077 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2078
8ca151b5 2079 /* Need to send a new beacon template to the FW */
863230da
JB		 2080 if (changes & BSS_CHANGED_BEACON &&
2081 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2082 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2083
2084 if (changes & BSS_CHANGED_TXPOWER) {
2085 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2086 bss_conf->txpower);
2087 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2088 }
2089
8ca151b5
JB		 2090}
2091
2092static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2093 struct ieee80211_vif *vif,
2094 struct ieee80211_bss_conf *bss_conf,
2095 u32 changes)
2096{
2097 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2098
576eeee9
EP		 2099 /*
2100 * iwl_mvm_bss_info_changed_station() might call
2101 * iwl_mvm_protect_session(), which reads directly from
2102 * the device (the system time), so make sure it is available.
2103 */
2104 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2105 return;
2106
8ca151b5
JB		 2107 mutex_lock(&mvm->mutex);
2108
723f02ed 2109 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2110 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2111
8ca151b5
JB		 2112 switch (vif->type) {
2113 case NL80211_IFTYPE_STATION:
2114 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2115 break;
2116 case NL80211_IFTYPE_AP:
5023d966
JB		 2117 case NL80211_IFTYPE_ADHOC:
2118 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2119 break;
2120 default:
2121 /* shouldn't happen */
2122 WARN_ON_ONCE(1);
2123 }
2124
2125 mutex_unlock(&mvm->mutex);
576eeee9 2126 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2127}
2128
4660dfbb
EP		 2129static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2130 enum iwl_scan_status scan_type)
2131{
2132 int ret;
2133 bool wait_for_handlers = false;
2134
2135 mutex_lock(&mvm->mutex);
2136
2137 if (mvm->scan_status != scan_type) {
2138 ret = 0;
2139 /* make sure there are no pending notifications */
2140 wait_for_handlers = true;
2141 goto out;
2142 }
2143
2144 switch (scan_type) {
2145 case IWL_MVM_SCAN_SCHED:
2146 ret = iwl_mvm_scan_offload_stop(mvm, true);
2147 break;
2148 case IWL_MVM_SCAN_OS:
2149 ret = iwl_mvm_cancel_scan(mvm);
2150 break;
2151 case IWL_MVM_SCAN_NONE:
2152 default:
2153 WARN_ON_ONCE(1);
2154 ret = -EINVAL;
2155 break;
2156 }
2157 if (ret)
2158 goto out;
2159
2160 wait_for_handlers = true;
2161out:
2162 mutex_unlock(&mvm->mutex);
2163
2164 /* make sure we consume the completion notification */
2165 if (wait_for_handlers)
2166 iwl_mvm_wait_for_async_handlers(mvm);
2167
2168 return ret;
2169}
8ca151b5
JB		 2170static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2171 struct ieee80211_vif *vif,
c56ef672 2172 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2173{
2174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 2175 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 2176 int ret;
2177
762533ba
DS		 2178 if (req->n_channels == 0 ||
2179 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2180 return -EINVAL;
2181
d2496221
DS		 2182 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2183 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2184 if (ret)
2185 return ret;
2186 }
4660dfbb 2187
8ca151b5
JB		 2188 mutex_lock(&mvm->mutex);
2189
4660dfbb 2190 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 2191 ret = -EBUSY;
519e2026
AN		 2192 goto out;
2193 }
8ca151b5 2194
519e2026
AN		 2195 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2196
b975e55a 2197 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 2198 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
b975e55a
DS		 2199 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2200 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e
DS		 2201 else
2202 ret = iwl_mvm_scan_request(mvm, vif, req);
2203
519e2026
AN		 2204 if (ret)
2205 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2206out:
8ca151b5 2207 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 2208 return ret;
2209}
2210
2211static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2212 struct ieee80211_vif *vif)
2213{
2214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2215
2216 mutex_lock(&mvm->mutex);
2217
2218 iwl_mvm_cancel_scan(mvm);
2219
2220 mutex_unlock(&mvm->mutex);
2221}
2222
2223static void
2224iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2225 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2226 int num_frames,
2227 enum ieee80211_frame_release_type reason,
2228 bool more_data)
2229{
2230 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2231
3e56eadf 2232 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2233
3e56eadf
JB		 2234 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2235 tids, more_data, false);
2236}
2237
2238static void
2239iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2240 struct ieee80211_sta *sta, u16 tids,
2241 int num_frames,
2242 enum ieee80211_frame_release_type reason,
2243 bool more_data)
2244{
2245 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2246
2247 /* Called when we need to transmit (a) frame(s) from agg queue */
2248
2249 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2250 tids, more_data, true);
8ca151b5
JB		 2251}
2252
2253static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2254 struct ieee80211_vif *vif,
2255 enum sta_notify_cmd cmd,
2256 struct ieee80211_sta *sta)
2257{
2258 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2259 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2260 int tid;
8ca151b5
JB		 2261
2262 switch (cmd) {
2263 case STA_NOTIFY_SLEEP:
e3d4bc8c 2264 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2265 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2266 spin_lock_bh(&mvmsta->lock);
2267 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2268 struct iwl_mvm_tid_data *tid_data;
2269
2270 tid_data = &mvmsta->tid_data[tid];
2271 if (tid_data->state != IWL_AGG_ON &&
2272 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2273 continue;
2274 if (iwl_mvm_tid_queued(tid_data) == 0)
2275 continue;
2276 ieee80211_sta_set_buffered(sta, tid, true);
2277 }
2278 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2279 /*
2280 * The fw updates the STA to be asleep. Tx packets on the Tx
2281 * queues to this station will not be transmitted. The fw will
2282 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2283 */
2284 break;
2285 case STA_NOTIFY_AWAKE:
881acd89 2286 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2287 break;
9cc40712 2288 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2289 break;
2290 default:
2291 break;
2292 }
2293}
2294
1ddbbb0c
JB		 2295static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2296 struct ieee80211_vif *vif,
2297 struct ieee80211_sta *sta)
2298{
2299 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2300 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2301
2302 /*
2303 * This is called before mac80211 does RCU synchronisation,
2304 * so here we already invalidate our internal RCU-protected
2305 * station pointer. The rest of the code will thus no longer
2306 * be able to find the station this way, and we don't rely
2307 * on further RCU synchronisation after the sta_state()
2308 * callback deleted the station.
2309 */
2310 mutex_lock(&mvm->mutex);
2311 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2312 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2313 ERR_PTR(-ENOENT));
2314 mutex_unlock(&mvm->mutex);
2315}
2316
bd1ba664
JB		 2317static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2318 const u8 *bssid)
2319{
2320 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2321 return;
2322
2323 if (iwlwifi_mod_params.uapsd_disable) {
2324 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2325 return;
2326 }
2327
2328 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2329}
2330
8ca151b5
JB		 2331static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2332 struct ieee80211_vif *vif,
2333 struct ieee80211_sta *sta,
2334 enum ieee80211_sta_state old_state,
2335 enum ieee80211_sta_state new_state)
2336{
2337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2338 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2339 int ret;
2340
2341 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2342 sta->addr, old_state, new_state);
2343
2344 /* this would be a mac80211 bug ... but don't crash */
2345 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2346 return -EINVAL;
2347
2348 /* if a STA is being removed, reuse its ID */
2349 flush_work(&mvm->sta_drained_wk);
2350
2351 mutex_lock(&mvm->mutex);
2352 if (old_state == IEEE80211_STA_NOTEXIST &&
2353 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2354 /*
2355 * Firmware bug - it'll crash if the beacon interval is less
2356 * than 16. We can't avoid connecting at all, so refuse the
2357 * station state change, this will cause mac80211 to abandon
2358 * attempts to connect to this AP, and eventually wpa_s will
2359 * blacklist the AP...
2360 */
2361 if (vif->type == NL80211_IFTYPE_STATION &&
2362 vif->bss_conf.beacon_int < 16) {
2363 IWL_ERR(mvm,
2364 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2365 sta->addr, vif->bss_conf.beacon_int);
2366 ret = -EINVAL;
2367 goto out_unlock;
2368 }
cf7b491d
AN		 2369
2370 if (sta->tdls &&
2371 (vif->p2p ||
fa3d07e4
AN		 2372 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2373 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2374 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2375 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2376 ret = -EBUSY;
2377 goto out_unlock;
2378 }
2379
8ca151b5 2380 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2381 if (sta->tdls && ret == 0)
2382 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2383 } else if (old_state == IEEE80211_STA_NONE &&
2384 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2385 /*
2386 * EBS may be disabled due to previous failures reported by FW.
2387 * Reset EBS status here assuming environment has been changed.
2388 */
2389 mvm->last_ebs_successful = true;
bd1ba664 2390 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2391 ret = 0;
2392 } else if (old_state == IEEE80211_STA_AUTH &&
2393 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2394 ret = iwl_mvm_update_sta(mvm, vif, sta);
2395 if (ret == 0)
2396 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2397 mvmvif->phy_ctxt->channel->band,
2398 true);
8ca151b5
JB		 2399 } else if (old_state == IEEE80211_STA_ASSOC &&
2400 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2401
2402 /* we don't support TDLS during DCM */
2403 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2404 iwl_mvm_teardown_tdls_peers(mvm);
2405
7df15b1e 2406 /* enable beacon filtering */
fa7b2e7f 2407 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2408 ret = 0;
2409 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2410 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2411 /* disable beacon filtering */
a1022927 2412 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2413 ret = 0;
2414 } else if (old_state == IEEE80211_STA_ASSOC &&
2415 new_state == IEEE80211_STA_AUTH) {
2416 ret = 0;
2417 } else if (old_state == IEEE80211_STA_AUTH &&
2418 new_state == IEEE80211_STA_NONE) {
2419 ret = 0;
2420 } else if (old_state == IEEE80211_STA_NONE &&
2421 new_state == IEEE80211_STA_NOTEXIST) {
2422 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2423 if (sta->tdls)
2424 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2425 } else {
2426 ret = -EIO;
2427 }
48bc1307 2428 out_unlock:
8ca151b5
JB		 2429 mutex_unlock(&mvm->mutex);
2430
9c126cd6
LK		 2431 if (sta->tdls && ret == 0) {
2432 if (old_state == IEEE80211_STA_NOTEXIST &&
2433 new_state == IEEE80211_STA_NONE)
2434 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2435 else if (old_state == IEEE80211_STA_NONE &&
2436 new_state == IEEE80211_STA_NOTEXIST)
2437 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2438 }
2439
8ca151b5
JB		 2440 return ret;
2441}
2442
2443static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2444{
2445 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2446
2447 mvm->rts_threshold = value;
2448
2449 return 0;
2450}
2451
1f3b0ff8
LE		 2452static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2453 struct ieee80211_vif *vif,
2454 struct ieee80211_sta *sta, u32 changed)
2455{
2456 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2457
2458 if (vif->type == NL80211_IFTYPE_STATION &&
2459 changed & IEEE80211_RC_NSS_CHANGED)
2460 iwl_mvm_sf_update(mvm, vif, false);
2461}
2462
8ca151b5
JB		 2463static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2464 struct ieee80211_vif *vif, u16 ac,
2465 const struct ieee80211_tx_queue_params *params)
2466{
2467 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2468 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2469
2470 mvmvif->queue_params[ac] = *params;
2471
2472 /*
2473 * No need to update right away, we'll get BSS_CHANGED_QOS
2474 * The exception is P2P_DEVICE interface which needs immediate update.
2475 */
2476 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2477 int ret;
2478
2479 mutex_lock(&mvm->mutex);
3dfd3a97 2480 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2481 mutex_unlock(&mvm->mutex);
2482 return ret;
2483 }
2484 return 0;
2485}
2486
2487static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2488 struct ieee80211_vif *vif)
2489{
2490 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2491 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2492 200 + vif->bss_conf.beacon_int);
2493 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2494 100 + vif->bss_conf.beacon_int);
2495
2496 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2497 return;
2498
576eeee9
EP		 2499 /*
2500 * iwl_mvm_protect_session() reads directly from the device
2501 * (the system time), so make sure it is available.
2502 */
2503 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2504 return;
2505
8ca151b5
JB		 2506 mutex_lock(&mvm->mutex);
2507 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2508 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2509 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2510
2511 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2512}
2513
35a000b7
DS		 2514static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2515 struct ieee80211_vif *vif,
2516 struct cfg80211_sched_scan_request *req,
633e2713 2517 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2518{
2519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2520 int ret;
2521
d2496221
DS		 2522 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2523 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2524 if (ret)
2525 return ret;
2526 }
4660dfbb 2527
35a000b7
DS		 2528 mutex_lock(&mvm->mutex);
2529
59ecb128
AB		 2530 /* Newest FW fixes sched scan while connected on another interface */
2531 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2532 if (!vif->bss_conf.idle) {
2533 ret = -EBUSY;
2534 goto out;
2535 }
2536 } else if (!iwl_mvm_is_idle(mvm)) {
bd5e4744
DS		 2537 ret = -EBUSY;
2538 goto out;
2539 }
2540
4660dfbb 2541 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2542 ret = -EBUSY;
2543 goto out;
2544 }
2545
b141c235 2546 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2547 if (ret)
b141c235 2548 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2549
35a000b7
DS		 2550out:
2551 mutex_unlock(&mvm->mutex);
2552 return ret;
2553}
2554
37e3308c
JB		 2555static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2556 struct ieee80211_vif *vif)
35a000b7
DS		 2557{
2558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2559 int ret;
35a000b7
DS		 2560
2561 mutex_lock(&mvm->mutex);
fb98be5e 2562 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2563 mutex_unlock(&mvm->mutex);
33ea27f6 2564 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2565
33ea27f6 2566 return ret;
d2496221 2567
35a000b7
DS		 2568}
2569
8ca151b5
JB		 2570static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2571 enum set_key_cmd cmd,
2572 struct ieee80211_vif *vif,
2573 struct ieee80211_sta *sta,
2574 struct ieee80211_key_conf *key)
2575{
2576 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2577 int ret;
2578
2579 if (iwlwifi_mod_params.sw_crypto) {
2580 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2581 return -EOPNOTSUPP;
2582 }
2583
2584 switch (key->cipher) {
2585 case WLAN_CIPHER_SUITE_TKIP:
2586 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2587 /* fall-through */
2588 case WLAN_CIPHER_SUITE_CCMP:
2589 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2590 break;
2591 case WLAN_CIPHER_SUITE_AES_CMAC:
2592 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2593 break;
2594 case WLAN_CIPHER_SUITE_WEP40:
2595 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2596 /* For non-client mode, only use WEP keys for TX as we probably
2597 * don't have a station yet anyway and would then have to keep
2598 * track of the keys, linking them to each of the clients/peers
2599 * as they appear. For now, don't do that, for performance WEP
2600 * offload doesn't really matter much, but we need it for some
2601 * other offload features in client mode.
8ca151b5 2602 */
ba3943b0
JB		 2603 if (vif->type != NL80211_IFTYPE_STATION)
2604 return 0;
2605 break;
8ca151b5 2606 default:
e36e5433
MS		 2607 /* currently FW supports only one optional cipher scheme */
2608 if (hw->n_cipher_schemes &&
2609 hw->cipher_schemes->cipher == key->cipher)
2610 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2611 else
2612 return -EOPNOTSUPP;
8ca151b5
JB		 2613 }
2614
2615 mutex_lock(&mvm->mutex);
2616
2617 switch (cmd) {
2618 case SET_KEY:
5023d966
JB		 2619 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2620 vif->type == NL80211_IFTYPE_AP) && !sta) {
2621 /*
2622 * GTK on AP interface is a TX-only key, return 0;
2623 * on IBSS they're per-station and because we're lazy
2624 * we don't support them for RX, so do the same.
2625 */
6caffd4f
JB		 2626 ret = 0;
2627 key->hw_key_idx = STA_KEY_IDX_INVALID;
2628 break;
2629 }
2630
8ca151b5
JB		 2631 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2632 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2633 if (ret) {
2634 IWL_WARN(mvm, "set key failed\n");
2635 /*
2636 * can't add key for RX, but we don't need it
2637 * in the device for TX so still return 0
2638 */
6caffd4f 2639 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2640 ret = 0;
2641 }
2642
2643 break;
2644 case DISABLE_KEY:
6caffd4f
JB		 2645 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2646 ret = 0;
2647 break;
2648 }
2649
8ca151b5
JB		 2650 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2651 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2652 break;
2653 default:
2654 ret = -EINVAL;
2655 }
2656
2657 mutex_unlock(&mvm->mutex);
2658 return ret;
2659}
2660
2661static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2662 struct ieee80211_vif *vif,
2663 struct ieee80211_key_conf *keyconf,
2664 struct ieee80211_sta *sta,
2665 u32 iv32, u16 *phase1key)
2666{
2667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2668
5023d966
JB		 2669 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2670 return;
2671
8ca151b5
JB		 2672 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2673}
2674
2675
b112889c
AM		 2676static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2677 struct iwl_rx_packet *pkt, void *data)
2678{
2679 struct iwl_mvm *mvm =
2680 container_of(notif_wait, struct iwl_mvm, notif_wait);
2681 struct iwl_hs20_roc_res *resp;
2682 int resp_len = iwl_rx_packet_payload_len(pkt);
2683 struct iwl_mvm_time_event_data *te_data = data;
2684
2685 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2686 return true;
2687
2688 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2689 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2690 return true;
2691 }
2692
2693 resp = (void *)pkt->data;
2694
2695 IWL_DEBUG_TE(mvm,
2696 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2697 resp->status, resp->event_unique_id);
2698
2699 te_data->uid = le32_to_cpu(resp->event_unique_id);
2700 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2701 te_data->uid);
2702
2703 spin_lock_bh(&mvm->time_event_lock);
2704 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2705 spin_unlock_bh(&mvm->time_event_lock);
2706
2707 return true;
2708}
2709
2710#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2711static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2712 struct ieee80211_channel *channel,
2713 struct ieee80211_vif *vif,
2714 int duration)
2715{
2716 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2717 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2718 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2719 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2720 struct iwl_notification_wait wait_time_event;
2721 struct iwl_hs20_roc_req aux_roc_req = {
2722 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2723 .id_and_color =
2724 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2725 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2726 /* Set the channel info data */
2727 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2728 PHY_BAND_24 : PHY_BAND_5,
2729 .channel_info.channel = channel->hw_value,
2730 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2731 /* Set the time and duration */
2732 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2733 .apply_time_max_delay =
2734 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2735 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2736 };
2737
2738 /* Set the node address */
2739 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2740
a6cc5163
MG		 2741 lockdep_assert_held(&mvm->mutex);
2742
2743 spin_lock_bh(&mvm->time_event_lock);
2744
2745 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2746 spin_unlock_bh(&mvm->time_event_lock);
2747 return -EIO;
2748 }
2749
b112889c
AM		 2750 te_data->vif = vif;
2751 te_data->duration = duration;
2752 te_data->id = HOT_SPOT_CMD;
2753
b112889c
AM		 2754 spin_unlock_bh(&mvm->time_event_lock);
2755
2756 /*
2757 * Use a notification wait, which really just processes the
2758 * command response and doesn't wait for anything, in order
2759 * to be able to process the response and get the UID inside
2760 * the RX path. Using CMD_WANT_SKB doesn't work because it
2761 * stores the buffer and then wakes up this thread, by which
2762 * time another notification (that the time event started)
2763 * might already be processed unsuccessfully.
2764 */
2765 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2766 time_event_response,
2767 ARRAY_SIZE(time_event_response),
2768 iwl_mvm_rx_aux_roc, te_data);
2769
2770 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2771 &aux_roc_req);
2772
2773 if (res) {
2774 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2775 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2776 goto out_clear_te;
2777 }
2778
2779 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2780 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2781 /* should never fail */
2782 WARN_ON_ONCE(res);
2783
2784 if (res) {
2785 out_clear_te:
2786 spin_lock_bh(&mvm->time_event_lock);
2787 iwl_mvm_te_clear_data(mvm, te_data);
2788 spin_unlock_bh(&mvm->time_event_lock);
2789 }
2790
2791 return res;
2792}
2793
8ca151b5
JB		 2794static int iwl_mvm_roc(struct ieee80211_hw *hw,
2795 struct ieee80211_vif *vif,
2796 struct ieee80211_channel *channel,
d339d5ca
IP		 2797 int duration,
2798 enum ieee80211_roc_type type)
8ca151b5
JB		 2799{
2800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2801 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2802 struct cfg80211_chan_def chandef;
31d385ae
IP		 2803 struct iwl_mvm_phy_ctxt *phy_ctxt;
2804 int ret, i;
2805
2806 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2807 duration, type);
8ca151b5 2808
a6cc5163
MG		 2809 mutex_lock(&mvm->mutex);
2810
b112889c
AM		 2811 switch (vif->type) {
2812 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 2813 if (mvm->fw->ucode_capa.capa[0] &
2814 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2815 /* Use aux roc framework (HS20) */
2816 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2817 vif, duration);
2818 goto out_unlock;
2819 }
2820 IWL_ERR(mvm, "hotspot not supported\n");
2821 ret = -EINVAL;
a6cc5163 2822 goto out_unlock;
b112889c
AM		 2823 case NL80211_IFTYPE_P2P_DEVICE:
2824 /* handle below */
2825 break;
2826 default:
2827 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2828 ret = -EINVAL;
2829 goto out_unlock;
8ca151b5
JB		 2830 }
2831
31d385ae
IP		 2832 for (i = 0; i < NUM_PHY_CTX; i++) {
2833 phy_ctxt = &mvm->phy_ctxts[i];
2834 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2835 continue;
2836
2837 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2838 /*
2839 * Unbind the P2P_DEVICE from the current PHY context,
2840 * and if the PHY context is not used remove it.
2841 */
2842 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2843 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2844 goto out_unlock;
2845
2846 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2847
2848 /* Bind the P2P_DEVICE to the current PHY Context */
2849 mvmvif->phy_ctxt = phy_ctxt;
2850
2851 ret = iwl_mvm_binding_add_vif(mvm, vif);
2852 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2853 goto out_unlock;
2854
2855 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2856 goto schedule_time_event;
2857 }
2858 }
2859
2860 /* Need to update the PHY context only if the ROC channel changed */
2861 if (channel == mvmvif->phy_ctxt->channel)
2862 goto schedule_time_event;
2863
8ca151b5 2864 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2865
31d385ae
IP		 2866 /*
2867 * Change the PHY context configuration as it is currently referenced
2868 * only by the P2P Device MAC
2869 */
2870 if (mvmvif->phy_ctxt->ref == 1) {
2871 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2872 &chandef, 1, 1);
2873 if (ret)
2874 goto out_unlock;
2875 } else {
2876 /*
2877 * The PHY context is shared with other MACs. Need to remove the
2878 * P2P Device from the binding, allocate an new PHY context and
2879 * create a new binding
2880 */
2881 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2882 if (!phy_ctxt) {
2883 ret = -ENOSPC;
2884 goto out_unlock;
2885 }
2886
2887 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2888 1, 1);
2889 if (ret) {
2890 IWL_ERR(mvm, "Failed to change PHY context\n");
2891 goto out_unlock;
2892 }
2893
2894 /* Unbind the P2P_DEVICE from the current PHY context */
2895 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2896 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2897 goto out_unlock;
2898
2899 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2900
2901 /* Bind the P2P_DEVICE to the new allocated PHY context */
2902 mvmvif->phy_ctxt = phy_ctxt;
2903
2904 ret = iwl_mvm_binding_add_vif(mvm, vif);
2905 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2906 goto out_unlock;
2907
2908 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2909 }
2910
2911schedule_time_event:
8ca151b5 2912 /* Schedule the time events */
e635c797 2913 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2914
31d385ae 2915out_unlock:
8ca151b5
JB		 2916 mutex_unlock(&mvm->mutex);
2917 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2918 return ret;
2919}
2920
2921static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2922{
2923 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2924
2925 IWL_DEBUG_MAC80211(mvm, "enter\n");
2926
2927 mutex_lock(&mvm->mutex);
bf5da87f 2928 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2929 mutex_unlock(&mvm->mutex);
2930
2931 IWL_DEBUG_MAC80211(mvm, "leave\n");
2932 return 0;
2933}
2934
b08c1d97
LC		 2935static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2936 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2937{
fe0f2de3
IP		 2938 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2939 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2940 int ret;
2941
b08c1d97
LC		 2942 lockdep_assert_held(&mvm->mutex);
2943
53a9d61e 2944 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2945
fe0f2de3
IP		 2946 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2947 if (!phy_ctxt) {
2948 ret = -ENOSPC;
2949 goto out;
2950 }
8ca151b5 2951
dcbc3e1a 2952 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2953 ctx->rx_chains_static,
2954 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2955 if (ret) {
2956 IWL_ERR(mvm, "Failed to add PHY context\n");
2957 goto out;
2958 }
2959
53a9d61e 2960 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2961 *phy_ctxt_id = phy_ctxt->id;
2962out:
b08c1d97
LC		 2963 return ret;
2964}
2965
2966static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2967 struct ieee80211_chanctx_conf *ctx)
2968{
2969 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2970 int ret;
2971
2972 mutex_lock(&mvm->mutex);
2973 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2974 mutex_unlock(&mvm->mutex);
b08c1d97 2975
8ca151b5
JB		 2976 return ret;
2977}
2978
b08c1d97
LC		 2979static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2980 struct ieee80211_chanctx_conf *ctx)
2981{
2982 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2983 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2984
2985 lockdep_assert_held(&mvm->mutex);
2986
2987 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2988}
2989
8ca151b5
JB		 2990static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2991 struct ieee80211_chanctx_conf *ctx)
2992{
2993 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2994
2995 mutex_lock(&mvm->mutex);
b08c1d97 2996 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2997 mutex_unlock(&mvm->mutex);
2998}
2999
3000static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3001 struct ieee80211_chanctx_conf *ctx,
3002 u32 changed)
3003{
3004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3005 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3006 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3007
31d385ae
IP		 3008 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3009 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3010 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3011 IEEE80211_CHANCTX_CHANGE_RADAR |
3012 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3013 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3014 phy_ctxt->ref, changed))
3015 return;
3016
8ca151b5 3017 mutex_lock(&mvm->mutex);
4d66449a 3018 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3019 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3020 ctx->rx_chains_static,
3021 ctx->rx_chains_dynamic);
3022 mutex_unlock(&mvm->mutex);
3023}
3024
b08c1d97
LC		 3025static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3026 struct ieee80211_vif *vif,
f0c97783
LC		 3027 struct ieee80211_chanctx_conf *ctx,
3028 bool switching_chanctx)
8ca151b5 3029{
fe0f2de3
IP		 3030 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3031 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3033 int ret;
3034
b08c1d97 3035 lockdep_assert_held(&mvm->mutex);
8ca151b5 3036
fe0f2de3 3037 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3038
3039 switch (vif->type) {
3040 case NL80211_IFTYPE_AP:
4741dd04
LC		 3041 /* only needed if we're switching chanctx (i.e. during CSA) */
3042 if (switching_chanctx) {
bd3398e2
AO		 3043 mvmvif->ap_ibss_active = true;
3044 break;
3045 }
5023d966 3046 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3047 /*
3048 * The AP binding flow is handled as part of the start_ap flow
5023d966 3049 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3050 */
3051 ret = 0;
b08c1d97 3052 goto out;
8ca151b5 3053 case NL80211_IFTYPE_STATION:
2533edce 3054 break;
8ca151b5 3055 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3056 /* always disable PS when a monitor interface is active */
3057 mvmvif->ps_disabled = true;
8ca151b5
JB		 3058 break;
3059 default:
3060 ret = -EINVAL;
b08c1d97 3061 goto out;
8ca151b5
JB		 3062 }
3063
3064 ret = iwl_mvm_binding_add_vif(mvm, vif);
3065 if (ret)
b08c1d97 3066 goto out;
8ca151b5
JB		 3067
3068 /*
92d85562
AB		 3069 * Power state must be updated before quotas,
3070 * otherwise fw will complain.
3071 */
999609f1 3072 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3073
3074 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3075 * interfaces. For the other types, the bss_info changed flow
3076 * will handle quota settings.
3077 */
3078 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3079 mvmvif->monitor_active = true;
0166230c 3080 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 3081 if (ret)
3082 goto out_remove_binding;
3083 }
3084
bd3398e2 3085 /* Handle binding during CSA */
a57c688d 3086 if (vif->type == NL80211_IFTYPE_AP) {
0166230c 3087 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 3088 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3089 }
3090
4741dd04 3091 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3092 u32 duration = 2 * vif->bss_conf.beacon_int;
3093
3094 /* iwl_mvm_protect_session() reads directly from the
3095 * device (the system time), so make sure it is
3096 * available.
3097 */
3098 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3099 if (ret)
3100 goto out_remove_binding;
3101
3102 /* Protect the session to make sure we hear the first
3103 * beacon on the new channel.
3104 */
3105 iwl_mvm_protect_session(mvm, vif, duration, duration,
3106 vif->bss_conf.beacon_int / 2,
3107 true);
3108
3109 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3110
a57c688d 3111 iwl_mvm_update_quotas(mvm, NULL);
0ce04ce7
LC		 3112 }
3113
b08c1d97 3114 goto out;
8ca151b5 3115
b08c1d97 3116out_remove_binding:
8ca151b5 3117 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3118 iwl_mvm_power_update_mac(mvm);
b08c1d97 3119out:
8ca151b5
JB		 3120 if (ret)
3121 mvmvif->phy_ctxt = NULL;
3122 return ret;
3123}
b08c1d97
LC		 3124static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3125 struct ieee80211_vif *vif,
3126 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3127{
3128 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3129 int ret;
8ca151b5
JB		 3130
3131 mutex_lock(&mvm->mutex);
f0c97783 3132 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3133 mutex_unlock(&mvm->mutex);
3134
3135 return ret;
3136}
3137
3138static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3139 struct ieee80211_vif *vif,
f0c97783
LC		 3140 struct ieee80211_chanctx_conf *ctx,
3141 bool switching_chanctx)
b08c1d97
LC		 3142{
3143 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3144 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3145
3146 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3147
3148 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3149
8ca151b5 3150 switch (vif->type) {
5023d966 3151 case NL80211_IFTYPE_ADHOC:
b08c1d97 3152 goto out;
8ca151b5 3153 case NL80211_IFTYPE_MONITOR:
1e1391ca 3154 mvmvif->monitor_active = false;
2533edce 3155 mvmvif->ps_disabled = false;
8ca151b5 3156 break;
bd3398e2
AO		 3157 case NL80211_IFTYPE_AP:
3158 /* This part is triggered only during CSA */
4741dd04 3159 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3160 goto out;
bd3398e2 3161
7ef0aab6
AO		 3162 mvmvif->csa_countdown = false;
3163
003e5236
AO		 3164 /* Set CS bit on all the stations */
3165 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3166
3167 /* Save blocked iface, the timeout is set on the next beacon */
3168 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3169
bd3398e2 3170 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3171 break;
3172 case NL80211_IFTYPE_STATION:
3173 if (!switching_chanctx)
3174 break;
3175
3176 disabled_vif = vif;
3177
3dfd3a97 3178 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3179 break;
8ca151b5
JB		 3180 default:
3181 break;
3182 }
3183
f0c97783 3184 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 3185 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3186
b08c1d97 3187out:
a11e144e 3188 mvmvif->phy_ctxt = NULL;
999609f1 3189 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3190}
3191
3192static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3193 struct ieee80211_vif *vif,
3194 struct ieee80211_chanctx_conf *ctx)
3195{
3196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3197
3198 mutex_lock(&mvm->mutex);
f0c97783 3199 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3200 mutex_unlock(&mvm->mutex);
3201}
3202
50cc9574
LC		 3203static int
3204iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3205 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3206{
b08c1d97
LC		 3207 int ret;
3208
b08c1d97 3209 mutex_lock(&mvm->mutex);
f0c97783 3210 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3211 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3212
3213 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3214 if (ret) {
3215 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3216 goto out_reassign;
3217 }
3218
f0c97783
LC		 3219 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3220 true);
b08c1d97
LC		 3221 if (ret) {
3222 IWL_ERR(mvm,
3223 "failed to assign new_ctx during channel switch\n");
3224 goto out_remove;
3225 }
3226
f697267f
AN		 3227 /* we don't support TDLS during DCM - can be caused by channel switch */
3228 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3229 iwl_mvm_teardown_tdls_peers(mvm);
3230
b08c1d97
LC		 3231 goto out;
3232
3233out_remove:
3234 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3235
3236out_reassign:
6fd1fb63 3237 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3238 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3239 goto out_restart;
3240 }
3241
6fd1fb63
LC		 3242 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3243 true)) {
b08c1d97
LC		 3244 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3245 goto out_restart;
3246 }
3247
3248 goto out;
3249
3250out_restart:
3251 /* things keep failing, better restart the hw */
3252 iwl_mvm_nic_restart(mvm, false);
3253
3254out:
3255 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3256
3257 return ret;
3258}
3259
48a256e8
LC		 3260static int
3261iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3262 struct ieee80211_vif_chanctx_switch *vifs)
3263{
3264 int ret;
3265
3266 mutex_lock(&mvm->mutex);
3267 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3268
3269 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3270 true);
3271 if (ret) {
3272 IWL_ERR(mvm,
3273 "failed to assign new_ctx during channel switch\n");
3274 goto out_reassign;
3275 }
3276
3277 goto out;
3278
3279out_reassign:
3280 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3281 true)) {
3282 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3283 goto out_restart;
3284 }
3285
3286 goto out;
3287
3288out_restart:
3289 /* things keep failing, better restart the hw */
3290 iwl_mvm_nic_restart(mvm, false);
3291
3292out:
3293 mutex_unlock(&mvm->mutex);
3294
3295 return ret;
3296}
3297
50cc9574
LC		 3298static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3299 struct ieee80211_vif_chanctx_switch *vifs,
3300 int n_vifs,
3301 enum ieee80211_chanctx_switch_mode mode)
3302{
3303 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3304 int ret;
3305
3306 /* we only support a single-vif right now */
3307 if (n_vifs > 1)
3308 return -EOPNOTSUPP;
3309
3310 switch (mode) {
3311 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3312 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3313 break;
3314 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3315 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3316 break;
3317 default:
3318 ret = -EOPNOTSUPP;
3319 break;
3320 }
3321
b08c1d97
LC		 3322 return ret;
3323}
3324
8ca151b5
JB		 3325static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3326 struct ieee80211_sta *sta,
3327 bool set)
3328{
3329 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3330 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3331
3332 if (!mvm_sta || !mvm_sta->vif) {
3333 IWL_ERR(mvm, "Station is not associated to a vif\n");
3334 return -EINVAL;
3335 }
3336
3337 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3338}
3339
507cadf2
DS		 3340#ifdef CONFIG_NL80211_TESTMODE
3341static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3342 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3343 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3344 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3345};
3346
3347static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3348 struct ieee80211_vif *vif,
3349 void *data, int len)
3350{
3351 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3352 int err;
3353 u32 noa_duration;
3354
3355 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3356 if (err)
3357 return err;
3358
3359 if (!tb[IWL_MVM_TM_ATTR_CMD])
3360 return -EINVAL;
3361
3362 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3363 case IWL_MVM_TM_CMD_SET_NOA:
3364 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3365 !vif->bss_conf.enable_beacon ||
3366 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3367 return -EINVAL;
3368
3369 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3370 if (noa_duration >= vif->bss_conf.beacon_int)
3371 return -EINVAL;
3372
3373 mvm->noa_duration = noa_duration;
3374 mvm->noa_vif = vif;
3375
0166230c 3376 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3377 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3378 /* must be associated client vif - ignore authorized */
3379 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3380 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3381 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3382 return -EINVAL;
3383
3384 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3385 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3386 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3387 }
3388
3389 return -EOPNOTSUPP;
3390}
3391
3392static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3393 struct ieee80211_vif *vif,
3394 void *data, int len)
3395{
3396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3397 int err;
3398
3399 mutex_lock(&mvm->mutex);
3400 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3401 mutex_unlock(&mvm->mutex);
3402
3403 return err;
3404}
3405#endif
3406
622e3f9b
LC		 3407static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3408 struct ieee80211_vif *vif,
3409 struct ieee80211_channel_switch *chsw)
3410{
3411 /* By implementing this operation, we prevent mac80211 from
3412 * starting its own channel switch timer, so that we can call
3413 * ieee80211_chswitch_done() ourselves at the right time
3414 * (which is when the absence time event starts).
3415 */
3416
3417 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3418 "dummy channel switch op\n");
3419}
3420
f028905c
LC		 3421static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3422 struct ieee80211_vif *vif,
3423 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3424{
3425 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3426 struct ieee80211_vif *csa_vif;
f6c34820 3427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3428 u32 apply_time;
f028905c 3429 int ret;
bd3398e2
AO		 3430
3431 mutex_lock(&mvm->mutex);
664322fa 3432
6b20d774 3433 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3434 chsw->chandef.center_freq1);
6b20d774
LC		 3435
3436 switch (vif->type) {
3437 case NL80211_IFTYPE_AP:
3438 csa_vif =
3439 rcu_dereference_protected(mvm->csa_vif,
3440 lockdep_is_held(&mvm->mutex));
3441 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3442 "Another CSA is already in progress")) {
3443 ret = -EBUSY;
3444 goto out_unlock;
3445 }
3446
3447 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3448
7ef0aab6
AO		 3449 if (WARN_ONCE(mvmvif->csa_countdown,
3450 "Previous CSA countdown didn't complete")) {
3451 ret = -EBUSY;
3452 goto out_unlock;
3453 }
3454
6b20d774 3455 break;
dc88b4ba 3456 case NL80211_IFTYPE_STATION:
4500e133
LC		 3457 /* Schedule the time event to a bit before beacon 1,
3458 * to make sure we're in the new channel when the
3459 * GO/AP arrives.
3460 */
3461 apply_time = chsw->device_timestamp +
3462 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3463 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3464
3465 if (chsw->block_tx)
3466 iwl_mvm_csa_client_absent(mvm, vif);
3467
4500e133 3468 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3469 apply_time);
c6e0a3e0
LC		 3470 if (mvmvif->bf_data.bf_enabled) {
3471 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3472 if (ret)
3473 goto out_unlock;
3474 }
3475
dc88b4ba 3476 break;
6b20d774
LC		 3477 default:
3478 break;
3479 }
bd3398e2 3480
f6c34820
LC		 3481 mvmvif->ps_disabled = true;
3482
3483 ret = iwl_mvm_power_update_ps(mvm);
3484 if (ret)
3485 goto out_unlock;
f028905c 3486
e198f5e7
AN		 3487 /* we won't be on this channel any longer */
3488 iwl_mvm_teardown_tdls_peers(mvm);
3489
bd3398e2
AO		 3490out_unlock:
3491 mutex_unlock(&mvm->mutex);
f028905c
LC		 3492
3493 return ret;
bd3398e2
AO		 3494}
3495
f6c34820
LC		 3496static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3497 struct ieee80211_vif *vif)
3498{
3499 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3500 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3501 int ret;
3502
3503 mutex_lock(&mvm->mutex);
3504
a57c688d
LC		 3505 if (vif->type == NL80211_IFTYPE_STATION) {
3506 struct iwl_mvm_sta *mvmsta;
3507
3508 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3509 mvmvif->ap_sta_id);
3510
3511 if (WARN_ON(!mvmsta)) {
3512 ret = -EIO;
3513 goto out_unlock;
3514 }
3515
3516 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3517
3518 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3519
3520 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3521 if (ret)
3522 goto out_unlock;
686e7fe1
LC		 3523
3524 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3525 }
3526
f6c34820
LC		 3527 mvmvif->ps_disabled = false;
3528
3529 ret = iwl_mvm_power_update_ps(mvm);
3530
a57c688d 3531out_unlock:
f6c34820
LC		 3532 mutex_unlock(&mvm->mutex);
3533
3534 return ret;
3535}
3536
c5b0e7c0
EG		 3537static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3538 struct ieee80211_vif *vif, u32 queues, bool drop)
3539{
3540 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3541 struct iwl_mvm_vif *mvmvif;
3542 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3543 struct ieee80211_sta *sta;
3544 int i;
3545 u32 msk = 0;
c5b0e7c0
EG		 3546
3547 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3548 return;
3549
3550 mutex_lock(&mvm->mutex);
3551 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3552
a0f6bf2a
AN		 3553 /* flush the AP-station and all TDLS peers */
3554 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3555 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3556 lockdep_is_held(&mvm->mutex));
3557 if (IS_ERR_OR_NULL(sta))
3558 continue;
3559
3560 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3561 if (mvmsta->vif != vif)
3562 continue;
3563
3564 /* make sure only TDLS peers or the AP are flushed */
3565 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3566
3567 msk |= mvmsta->tfd_queue_msk;
480acbce 3568 }
c5b0e7c0 3569
6d440b25
EG		 3570 if (drop) {
3571 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3572 IWL_ERR(mvm, "flush request fail\n");
3573 mutex_unlock(&mvm->mutex);
3574 } else {
3575 mutex_unlock(&mvm->mutex);
4e6c48e0 3576
6d440b25
EG		 3577 /* this can take a while, and we may need/want other operations
3578 * to succeed while doing this, so do it without the mutex held
3579 */
3580 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3581 }
c5b0e7c0
EG		 3582}
3583
e5209263 3584const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3585 .tx = iwl_mvm_mac_tx,
3586 .ampdu_action = iwl_mvm_mac_ampdu_action,
3587 .start = iwl_mvm_mac_start,
cf2c92d8 3588 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3589 .stop = iwl_mvm_mac_stop,
3590 .add_interface = iwl_mvm_mac_add_interface,
3591 .remove_interface = iwl_mvm_mac_remove_interface,
3592 .config = iwl_mvm_mac_config,
e59647ea 3593 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3594 .configure_filter = iwl_mvm_configure_filter,
3595 .bss_info_changed = iwl_mvm_bss_info_changed,
3596 .hw_scan = iwl_mvm_mac_hw_scan,
3597 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3598 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3599 .sta_state = iwl_mvm_mac_sta_state,
3600 .sta_notify = iwl_mvm_mac_sta_notify,
3601 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3602 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3603 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3604 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3605 .conf_tx = iwl_mvm_mac_conf_tx,
3606 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3607 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3608 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3609 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3610 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3611 .set_key = iwl_mvm_mac_set_key,
3612 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3613 .remain_on_channel = iwl_mvm_roc,
3614 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3615 .add_chanctx = iwl_mvm_add_chanctx,
3616 .remove_chanctx = iwl_mvm_remove_chanctx,
3617 .change_chanctx = iwl_mvm_change_chanctx,
3618 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3619 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3620 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3621
5023d966
JB		 3622 .start_ap = iwl_mvm_start_ap_ibss,
3623 .stop_ap = iwl_mvm_stop_ap_ibss,
3624 .join_ibss = iwl_mvm_start_ap_ibss,
3625 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3626
3627 .set_tim = iwl_mvm_set_tim,
3628
622e3f9b 3629 .channel_switch = iwl_mvm_channel_switch,
f028905c 3630 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 3631 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 3632
1d3c3f63
AN		 3633 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3634 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3635 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3636
507cadf2
DS		 3637 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3638
8ca151b5
JB		 3639#ifdef CONFIG_PM_SLEEP
3640 /* look at d3.c */
3641 .suspend = iwl_mvm_suspend,
3642 .resume = iwl_mvm_resume,
3643 .set_wakeup = iwl_mvm_set_wakeup,
3644 .set_rekey_data = iwl_mvm_set_rekey_data,
3645#if IS_ENABLED(CONFIG_IPV6)
3646 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3647#endif
3648 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3649#endif
3650};
Linux 6.x block layer and io_uring tree(s)