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iwlwifi: mvm: reduce the AMPDU size in low latency mode
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8ca151b5
JB		 9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
410dc5aa 25 * in the file called COPYING.
8ca151b5
JB		 26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
51368bf7 33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8ca151b5
JB		 34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63#include <linux/kernel.h>
64#include <linux/slab.h>
65#include <linux/skbuff.h>
66#include <linux/netdevice.h>
67#include <linux/etherdevice.h>
f0c2646a 68#include <linux/ip.h>
2ee8f021 69#include <linux/if_arp.h>
8ca151b5 70#include <net/mac80211.h>
7b1dd048 71#include <net/ieee80211_radiotap.h>
f0c2646a 72#include <net/tcp.h>
8ca151b5
JB		 73
74#include "iwl-op-mode.h"
75#include "iwl-io.h"
76#include "mvm.h"
77#include "sta.h"
78#include "time-event.h"
79#include "iwl-eeprom-parse.h"
80#include "fw-api-scan.h"
81#include "iwl-phy-db.h"
507cadf2 82#include "testmode.h"
655e6d6d
EG		 83#include "iwl-fw-error-dump.h"
84#include "iwl-prph.h"
8ca151b5
JB		 85
86static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
87 {
88 .max = 1,
8eb38710 89 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 90 },
3c15a0fb
JB		 91 {
92 .max = 1,
8eb38710
IP		 93 .types = BIT(NL80211_IFTYPE_AP) |
94 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 95 BIT(NL80211_IFTYPE_P2P_GO),
96 },
97 {
98 .max = 1,
99 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
100 },
8ca151b5
JB		 101};
102
103static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
104 {
105 .num_different_channels = 1,
106 .max_interfaces = 3,
107 .limits = iwl_mvm_limits,
108 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
109 },
110};
111
f0c2646a
JB		 112#ifdef CONFIG_PM_SLEEP
113static const struct nl80211_wowlan_tcp_data_token_feature
114iwl_mvm_wowlan_tcp_token_feature = {
115 .min_len = 0,
116 .max_len = 255,
117 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
118};
119
120static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
121 .tok = &iwl_mvm_wowlan_tcp_token_feature,
122 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
123 sizeof(struct ethhdr) -
124 sizeof(struct iphdr) -
125 sizeof(struct tcphdr),
126 .data_interval_max = 65535, /* __le16 in API */
127 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .seq = true,
132};
133#endif
134
77736923 135#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 136/*
137 * Use the reserved field to indicate magic values.
138 * these values will only be used internally by the driver,
139 * and won't make it to the fw (reserved will be 0).
140 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
141 * be the vif's ip address. in case there is not a single
142 * ip address (0, or more than 1), this attribute will
143 * be skipped.
144 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
145 * the LSB bytes of the vif's mac address
146 */
147enum {
148 BC_FILTER_MAGIC_NONE = 0,
149 BC_FILTER_MAGIC_IP,
150 BC_FILTER_MAGIC_MAC,
151};
152
77736923
EP		 153static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
154 {
155 /* arp */
156 .discard = 0,
157 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
158 .attrs = {
159 {
160 /* frame type - arp, hw type - ethernet */
161 .offset_type =
162 BCAST_FILTER_OFFSET_PAYLOAD_START,
163 .offset = sizeof(rfc1042_header),
164 .val = cpu_to_be32(0x08060001),
165 .mask = cpu_to_be32(0xffffffff),
166 },
2ee8f021
EP		 167 {
168 /* arp dest ip */
169 .offset_type =
170 BCAST_FILTER_OFFSET_PAYLOAD_START,
171 .offset = sizeof(rfc1042_header) + 2 +
172 sizeof(struct arphdr) +
173 ETH_ALEN + sizeof(__be32) +
174 ETH_ALEN,
175 .mask = cpu_to_be32(0xffffffff),
176 /* mark it as special field */
177 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
178 },
179 },
180 },
181 {
182 /* dhcp offer bcast */
183 .discard = 0,
184 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
185 .attrs = {
186 {
187 /* udp dest port - 68 (bootp client)*/
188 .offset_type = BCAST_FILTER_OFFSET_IP_END,
189 .offset = offsetof(struct udphdr, dest),
190 .val = cpu_to_be32(0x00440000),
191 .mask = cpu_to_be32(0xffff0000),
192 },
193 {
194 /* dhcp - lsb bytes of client hw address */
195 .offset_type = BCAST_FILTER_OFFSET_IP_END,
196 .offset = 38,
197 .mask = cpu_to_be32(0xffffffff),
198 /* mark it as special field */
199 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
200 },
77736923
EP		 201 },
202 },
203 /* last filter must be empty */
204 {},
205};
206#endif
207
7498cf4c
EP		 208void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
209{
7bb426ea 210 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 211 return;
212
213 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 214 spin_lock_bh(&mvm->refs_lock);
215 mvm->refs[ref_type]++;
216 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 217 iwl_trans_ref(mvm->trans);
218}
219
220void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
221{
7bb426ea 222 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 223 return;
224
225 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 226 spin_lock_bh(&mvm->refs_lock);
227 WARN_ON(!mvm->refs[ref_type]--);
228 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 229 iwl_trans_unref(mvm->trans);
230}
231
576eeee9
EP		 232static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
233 enum iwl_mvm_ref_type except_ref)
7498cf4c 234{
576eeee9 235 int i, j;
7498cf4c 236
7bb426ea 237 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 238 return;
239
576eeee9
EP		 240 spin_lock_bh(&mvm->refs_lock);
241 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
242 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 243 continue;
244
576eeee9
EP		 245 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
246 i, mvm->refs[i]);
247 for (j = 0; j < mvm->refs[i]; j++)
248 iwl_trans_unref(mvm->trans);
249 mvm->refs[i] = 0;
7498cf4c 250 }
576eeee9 251 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 252}
253
576eeee9 254int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 255{
256 iwl_mvm_ref(mvm, ref_type);
257
258 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
259 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
260 HZ)) {
261 WARN_ON_ONCE(1);
262 iwl_mvm_unref(mvm, ref_type);
263 return -EIO;
264 }
265
266 return 0;
267}
268
fe0f2de3
IP		 269static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
270{
271 int i;
272
273 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
274 for (i = 0; i < NUM_PHY_CTX; i++) {
275 mvm->phy_ctxts[i].id = i;
276 mvm->phy_ctxts[i].ref = 0;
277 }
278}
279
20f1a5de
DS		 280static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
281{
282 /* we create the 802.11 header and SSID element */
283 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
284 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
285 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
286}
287
8ca151b5
JB		 288int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
289{
290 struct ieee80211_hw *hw = mvm->hw;
831e85f3 291 int num_mac, ret, i;
8ca151b5
JB		 292
293 /* Tell mac80211 our characteristics */
294 hw->flags = IEEE80211_HW_SIGNAL_DBM |
295 IEEE80211_HW_SPECTRUM_MGMT |
296 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
297 IEEE80211_HW_QUEUE_CONTROL |
298 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 299 IEEE80211_HW_SUPPORTS_PS |
300 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 301 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 302 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 303 IEEE80211_HW_CONNECTION_MONITOR |
f0c97783 304 IEEE80211_HW_CHANCTX_STA_CSA |
147fc9be 305 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
e8e626ad 306 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
8ca151b5 307
19e737c9 308 hw->queues = mvm->first_agg_queue;
398e8c6c 309 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 310 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
311 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
312 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
8ca151b5
JB		 313 hw->rate_control_algorithm = "iwl-mvm-rs";
314
315 /*
316 * Enable 11w if advertised by firmware and software crypto
317 * is not enabled (as the firmware will interpret some mgmt
318 * packets, so enabling it with software crypto isn't safe)
319 */
320 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
321 !iwlwifi_mod_params.sw_crypto)
322 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
323
1504f48d
MC		 324 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
325 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
326 !iwlwifi_mod_params.uapsd_disable) {
327 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
328 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
329 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
330 }
e8e626ad 331
fb98be5e
DS		 332 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
333 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
334
8ca151b5
JB		 335 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
336 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 337 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 338
339 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 340 BIT(NL80211_IFTYPE_P2P_CLIENT) |
341 BIT(NL80211_IFTYPE_AP) |
342 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 343 BIT(NL80211_IFTYPE_P2P_DEVICE) |
344 BIT(NL80211_IFTYPE_ADHOC);
5023d966 345
a2f73b6c
LR		 346 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
347 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
348 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 349
3e56eadf
JB		 350 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
351 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
352
bd3398e2
AO		 353 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
354 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
355
8ca151b5
JB		 356 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
357 hw->wiphy->n_iface_combinations =
358 ARRAY_SIZE(iwl_mvm_iface_combinations);
359
c451e6d4 360 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 361 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
362
363 /* Extract MAC address */
364 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
365 hw->wiphy->addresses = mvm->addresses;
366 hw->wiphy->n_addresses = 1;
831e85f3
IP		 367
368 /* Extract additional MAC addresses if available */
369 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
370 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
371
372 for (i = 1; i < num_mac; i++) {
373 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 374 ETH_ALEN);
831e85f3 375 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 376 hw->wiphy->n_addresses++;
377 }
378
fe0f2de3
IP		 379 iwl_mvm_reset_phy_ctxts(mvm);
380
20f1a5de
DS		 381 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
382
8ca151b5
JB		 383 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
384
385 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
386 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
387 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
388 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
389 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
390 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
391
392 hw->wiphy->hw_version = mvm->trans->hw_id;
393
ade50652 394 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 395 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
396 else
397 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
398
77b2f286
EG		 399 /* TODO: enable that only for firmwares that don't crash */
400 /* hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN; */
536a3eee
EG		 401 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
402 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
403 /* we create the 802.11 header and zero length SSID IE. */
404 hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 405
8ca151b5 406 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 407 NL80211_FEATURE_LOW_PRIORITY_SCAN |
8a110d9b 408 NL80211_FEATURE_P2P_GO_OPPPS;
8ca151b5
JB		 409
410 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
411
e36e5433 412 /* currently FW API supports only one optional cipher scheme */
9ddca860 413 if (mvm->fw->cs[0].cipher) {
e36e5433 414 mvm->hw->n_cipher_schemes = 1;
9ddca860 415 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 416 }
417
8ca151b5 418#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 419 if (iwl_mvm_is_d0i3_supported(mvm) &&
420 device_can_wakeup(mvm->trans->dev)) {
421 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
422 hw->wiphy->wowlan = &mvm->wowlan;
423 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 424 mvm->trans->ops->d3_suspend &&
425 mvm->trans->ops->d3_resume &&
426 device_can_wakeup(mvm->trans->dev)) {
964dc9e2
JB		 427 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
428 WIPHY_WOWLAN_DISCONNECT |
429 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
430 WIPHY_WOWLAN_RFKILL_RELEASE;
8ca151b5 431 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 432 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
433 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
434 WIPHY_WOWLAN_4WAY_HANDSHAKE;
435
436 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
437 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
438 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
439 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
440 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 441 }
442#endif
443
77736923
EP		 444#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
445 /* assign default bcast filtering configuration */
446 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
447#endif
448
8ca151b5
JB		 449 ret = iwl_mvm_leds_init(mvm);
450 if (ret)
451 return ret;
452
b7327d89
EG		 453 ret = ieee80211_register_hw(mvm->hw);
454 if (ret)
455 iwl_mvm_leds_exit(mvm);
456
457 return ret;
8ca151b5
JB		 458}
459
b2492501
AN		 460static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
461 struct ieee80211_sta *sta,
462 struct sk_buff *skb)
463{
464 struct iwl_mvm_sta *mvmsta;
465 bool defer = false;
466
467 /*
468 * double check the IN_D0I3 flag both before and after
469 * taking the spinlock, in order to prevent taking
470 * the spinlock when not needed.
471 */
472 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
473 return false;
474
475 spin_lock(&mvm->d0i3_tx_lock);
476 /*
477 * testing the flag again ensures the skb dequeue
478 * loop (on d0i3 exit) hasn't run yet.
479 */
480 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
481 goto out;
482
483 mvmsta = iwl_mvm_sta_from_mac80211(sta);
484 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
485 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
486 goto out;
487
488 __skb_queue_tail(&mvm->d0i3_tx, skb);
489 ieee80211_stop_queues(mvm->hw);
490
491 /* trigger wakeup */
492 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
493 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
494
495 defer = true;
496out:
497 spin_unlock(&mvm->d0i3_tx_lock);
498 return defer;
499}
500
8ca151b5
JB		 501static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
502 struct ieee80211_tx_control *control,
503 struct sk_buff *skb)
504{
505 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 506 struct ieee80211_sta *sta = control->sta;
507 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
508 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 509
9ee718aa
EL		 510 if (iwl_mvm_is_radio_killed(mvm)) {
511 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 512 goto drop;
513 }
514
398e8c6c 515 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
8ca151b5
JB		 516 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
517 goto drop;
518
3e56eadf
JB		 519 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
520 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
521 ieee80211_is_mgmt(hdr->frame_control) &&
522 !ieee80211_is_deauth(hdr->frame_control) &&
523 !ieee80211_is_disassoc(hdr->frame_control) &&
524 !ieee80211_is_action(hdr->frame_control)))
525 sta = NULL;
526
527 if (sta) {
b2492501
AN		 528 if (iwl_mvm_defer_tx(mvm, sta, skb))
529 return;
3e56eadf 530 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 531 goto drop;
532 return;
533 }
534
535 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
536 goto drop;
537 return;
538 drop:
539 ieee80211_free_txskb(hw, skb);
540}
541
205e2210
EG		 542static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
543{
544 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
545 return false;
546 return true;
547}
548
549static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
550{
551 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
552 return false;
553 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
554 return true;
555
556 /* enabled by default */
557 return true;
558}
559
8ca151b5
JB		 560static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
561 struct ieee80211_vif *vif,
562 enum ieee80211_ampdu_mlme_action action,
563 struct ieee80211_sta *sta, u16 tid,
564 u16 *ssn, u8 buf_size)
565{
566 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
567 int ret;
b2492501 568 bool tx_agg_ref = false;
8ca151b5
JB		 569
570 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
571 sta->addr, tid, action);
572
573 if (!(mvm->nvm_data->sku_cap_11n_enable))
574 return -EACCES;
575
b2492501 576 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 577 switch (action) {
578 case IEEE80211_AMPDU_TX_START:
579 case IEEE80211_AMPDU_TX_STOP_CONT:
580 case IEEE80211_AMPDU_TX_STOP_FLUSH:
581 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
582 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 583 /*
9256c205
EP		 584 * for tx start, wait synchronously until D0i3 exit to
585 * get the correct sequence number for the tid.
586 * additionally, some other ampdu actions use direct
587 * target access, which is not handled automatically
588 * by the trans layer (unlike commands), so wait for
589 * d0i3 exit in these cases as well.
b2492501 590 */
d40fc489
GG		 591 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
592 if (ret)
593 return ret;
594
595 tx_agg_ref = true;
9256c205
EP		 596 break;
597 default:
598 break;
b2492501
AN		 599 }
600
8ca151b5
JB		 601 mutex_lock(&mvm->mutex);
602
603 switch (action) {
604 case IEEE80211_AMPDU_RX_START:
205e2210 605 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 606 ret = -EINVAL;
607 break;
608 }
609 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
610 break;
611 case IEEE80211_AMPDU_RX_STOP:
612 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
613 break;
614 case IEEE80211_AMPDU_TX_START:
205e2210 615 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 616 ret = -EINVAL;
617 break;
618 }
8ca151b5
JB		 619 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
620 break;
621 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 622 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
623 break;
8ca151b5
JB		 624 case IEEE80211_AMPDU_TX_STOP_FLUSH:
625 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 626 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 627 break;
628 case IEEE80211_AMPDU_TX_OPERATIONAL:
629 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
630 break;
631 default:
632 WARN_ON_ONCE(1);
633 ret = -EINVAL;
634 break;
635 }
636 mutex_unlock(&mvm->mutex);
637
b2492501
AN		 638 /*
639 * If the tid is marked as started, we won't use it for offloaded
640 * traffic on the next D0i3 entry. It's safe to unref.
641 */
642 if (tx_agg_ref)
643 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
644
8ca151b5
JB		 645 return ret;
646}
647
648static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
649 struct ieee80211_vif *vif)
650{
651 struct iwl_mvm *mvm = data;
652 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
653
654 mvmvif->uploaded = false;
655 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
656
657 /* does this make sense at all? */
658 mvmvif->color++;
659
660 spin_lock_bh(&mvm->time_event_lock);
661 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
662 spin_unlock_bh(&mvm->time_event_lock);
663
fe0f2de3 664 mvmvif->phy_ctxt = NULL;
8a275bad 665 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 666}
667
655e6d6d
EG		 668#ifdef CONFIG_IWLWIFI_DEBUGFS
669static void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
670{
671 struct iwl_fw_error_dump_file *dump_file;
672 struct iwl_fw_error_dump_data *dump_data;
673 struct iwl_fw_error_dump_info *dump_info;
48eb7b34 674 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d
EG		 675 const struct fw_img *img;
676 u32 sram_len, sram_ofs;
677 u32 file_len, rxf_len;
678 unsigned long flags;
655e6d6d
EG		 679 int reg_val;
680
681 lockdep_assert_held(&mvm->mutex);
682
683 if (mvm->fw_error_dump)
684 return;
685
48eb7b34
EG		 686 fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL);
687 if (!fw_error_dump)
688 return;
689
655e6d6d
EG		 690 img = &mvm->fw->img[mvm->cur_ucode];
691 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
692 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
693
694 /* reading buffer size */
695 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
696 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
697
698 /* the register holds the value divided by 128 */
699 rxf_len = rxf_len << 7;
700
701 file_len = sizeof(*dump_file) +
702 sizeof(*dump_data) * 3 +
703 sram_len +
704 rxf_len +
705 sizeof(*dump_info);
706
5bfe6f53 707 dump_file = vzalloc(file_len);
48eb7b34
EG		 708 if (!dump_file) {
709 kfree(fw_error_dump);
655e6d6d 710 return;
48eb7b34 711 }
655e6d6d 712
48eb7b34 713 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 714
715 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 716 dump_data = (void *)dump_file->data;
717
718 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
719 dump_data->len = cpu_to_le32(sizeof(*dump_info));
720 dump_info = (void *) dump_data->data;
721 dump_info->device_family =
722 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
723 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
724 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
725 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
726 sizeof(dump_info->fw_human_readable));
727 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
728 sizeof(dump_info->dev_human_readable));
729 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
730 sizeof(dump_info->bus_human_readable));
731
732 dump_data = iwl_fw_error_next_data(dump_data);
733 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
734 dump_data->len = cpu_to_le32(rxf_len);
735
736 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
737 u32 *rxf = (void *)dump_data->data;
738 int i;
739
740 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
741 iwl_trans_write_prph(mvm->trans,
742 RXF_LD_FENCE_OFFSET_ADDR,
743 i * sizeof(u32));
744 rxf[i] = iwl_trans_read_prph(mvm->trans,
745 RXF_FIFO_RD_FENCE_ADDR);
746 }
747 iwl_trans_release_nic_access(mvm->trans, &flags);
748 }
749
750 dump_data = iwl_fw_error_next_data(dump_data);
751 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
752 dump_data->len = cpu_to_le32(sram_len);
753 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
754 sram_len);
755
48eb7b34
EG		 756 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
757 fw_error_dump->op_mode_len = file_len;
758 if (fw_error_dump->trans_ptr)
759 file_len += fw_error_dump->trans_ptr->len;
760 dump_file->file_len = cpu_to_le32(file_len);
761 mvm->fw_error_dump = fw_error_dump;
655e6d6d
EG		 762}
763#endif
764
8ca151b5
JB		 765static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
766{
1bd3cbc1
EG		 767#ifdef CONFIG_IWLWIFI_DEBUGFS
768 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
769
770 iwl_mvm_fw_error_dump(mvm);
771
772 /* notify the userspace about the error we had */
773 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
774#endif
775
8ca151b5 776 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 777
778 mvm->scan_status = IWL_MVM_SCAN_NONE;
779
780 /* just in case one was running */
781 ieee80211_remain_on_channel_expired(mvm->hw);
782
783 ieee80211_iterate_active_interfaces_atomic(
784 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
785 iwl_mvm_cleanup_iterator, mvm);
786
fe0f2de3 787 mvm->p2p_device_vif = NULL;
37577fe2 788 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 789
790 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 791 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
792 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
8a275bad
EG		 793 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
794 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
795 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
796 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
797 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
798 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 799
800 ieee80211_wake_queues(mvm->hw);
801
7498cf4c
EP		 802 /* cleanup all stale references (scan, roc), but keep the
803 * ucode_down ref until reconfig is complete */
804 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
805
8ca151b5 806 mvm->vif_count = 0;
113a0447 807 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 808}
809
810static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
811{
812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
813 int ret;
814
815 mutex_lock(&mvm->mutex);
816
817 /* Clean up some internal and mac80211 state on restart */
818 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
819 iwl_mvm_restart_cleanup(mvm);
820
821 ret = iwl_mvm_up(mvm);
c47af22a
JB		 822
823 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
824 /* Something went wrong - we need to finish some cleanup
825 * that normally iwl_mvm_mac_restart_complete() below
826 * would do.
827 */
828 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
829 iwl_mvm_d0i3_enable_tx(mvm, NULL);
830 }
831
8ca151b5
JB		 832 mutex_unlock(&mvm->mutex);
833
834 return ret;
835}
836
837static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
838{
839 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
840 int ret;
841
842 mutex_lock(&mvm->mutex);
843
844 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 845 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 846 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 847 if (ret)
848 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
849 ret);
850
7498cf4c
EP		 851 /* allow transport/FW low power modes */
852 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
853
8ca151b5
JB		 854 mutex_unlock(&mvm->mutex);
855}
856
857static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
858{
859 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
860
37577fe2 861 flush_work(&mvm->d0i3_exit_work);
8ca151b5
JB		 862 flush_work(&mvm->async_handlers_wk);
863
864 mutex_lock(&mvm->mutex);
7498cf4c
EP		 865
866 /* disallow low power states when the FW is down */
867 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
868
8ca151b5
JB		 869 /* async_handlers_wk is now blocked */
870
871 /*
872 * The work item could be running or queued if the
873 * ROC time event stops just as we get here.
874 */
875 cancel_work_sync(&mvm->roc_done_wk);
876
877 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 878
879 iwl_mvm_async_handlers_purge(mvm);
880 /* async_handlers_list is empty and will stay empty: HW is stopped */
881
882 /* the fw is stopped, the aux sta is dead: clean up driver state */
883 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
884
885 mutex_unlock(&mvm->mutex);
886
887 /*
888 * The worker might have been waiting for the mutex, let it run and
889 * discover that its list is now empty.
890 */
891 cancel_work_sync(&mvm->async_handlers_wk);
892}
893
fe0f2de3
IP		 894static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
895{
896 u16 i;
897
898 lockdep_assert_held(&mvm->mutex);
899
900 for (i = 0; i < NUM_PHY_CTX; i++)
901 if (!mvm->phy_ctxts[i].ref)
902 return &mvm->phy_ctxts[i];
903
904 IWL_ERR(mvm, "No available PHY context\n");
905 return NULL;
906}
907
ee9c6cb0
EG		 908static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
909 s8 tx_power)
910{
911 /* FW is in charge of regulatory enforcement */
912 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
913 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
914 .pwr_restriction = cpu_to_le16(tx_power),
915 };
916
a1022927 917 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 918 sizeof(reduce_txpwr_cmd),
919 &reduce_txpwr_cmd);
920}
921
8ca151b5
JB		 922static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
923 struct ieee80211_vif *vif)
924{
925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
926 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
927 int ret;
928
d40fc489
GG		 929 /*
930 * make sure D0i3 exit is completed, otherwise a target access
931 * during tx queue configuration could be done when still in
932 * D0i3 state.
933 */
934 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
935 if (ret)
936 return ret;
937
8ca151b5
JB		 938 /*
939 * Not much to do here. The stack will not allow interface
940 * types or combinations that we didn't advertise, so we
941 * don't really have to check the types.
942 */
943
944 mutex_lock(&mvm->mutex);
945
e89044d7 946 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 947 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
948 if (ret)
949 goto out_unlock;
950
1c2abf72 951 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 952 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
953 mvm->vif_count++;
ea183d02 954
8ca151b5
JB		 955 /*
956 * The AP binding flow can be done only after the beacon
957 * template is configured (which happens only in the mac80211
958 * start_ap() flow), and adding the broadcast station can happen
959 * only after the binding.
960 * In addition, since modifying the MAC before adding a bcast
961 * station is not allowed by the FW, delay the adding of MAC context to
962 * the point where we can also add the bcast station.
963 * In short: there's not much we can do at this point, other than
964 * allocating resources :)
965 */
5023d966
JB		 966 if (vif->type == NL80211_IFTYPE_AP ||
967 vif->type == NL80211_IFTYPE_ADHOC) {
8ca151b5
JB		 968 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
969 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
b92e661b
EP		 970 qmask,
971 ieee80211_vif_type_p2p(vif));
8ca151b5
JB		 972 if (ret) {
973 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
974 goto out_release;
975 }
976
77740cb4 977 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 978 goto out_unlock;
979 }
980
8ca151b5
JB		 981 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
982 if (ret)
983 goto out_release;
984
999609f1 985 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e
EG		 986 if (ret)
987 goto out_release;
8ca151b5 988
7df15b1e 989 /* beacon filtering */
a1022927 990 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 991 if (ret)
992 goto out_remove_mac;
993
7df15b1e 994 if (!mvm->bf_allowed_vif &&
73e5f2c5 995 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 996 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 997 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
998 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 999 }
1000
8ca151b5
JB		 1001 /*
1002 * P2P_DEVICE interface does not have a channel context assigned to it,
1003 * so a dedicated PHY context is allocated to it and the corresponding
1004 * MAC context is bound to it at this stage.
1005 */
1006 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1007
fe0f2de3
IP		 1008 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1009 if (!mvmvif->phy_ctxt) {
1010 ret = -ENOSPC;
bd3351ba 1011 goto out_free_bf;
fe0f2de3 1012 }
8ca151b5 1013
53a9d61e 1014 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1015 ret = iwl_mvm_binding_add_vif(mvm, vif);
1016 if (ret)
53a9d61e 1017 goto out_unref_phy;
8ca151b5
JB		 1018
1019 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1020 if (ret)
1021 goto out_unbind;
1022
1023 /* Save a pointer to p2p device vif, so it can later be used to
1024 * update the p2p device MAC when a GO is started/stopped */
1025 mvm->p2p_device_vif = vif;
1026 }
1027
63494374 1028 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1029 goto out_unlock;
1030
1031 out_unbind:
1032 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1033 out_unref_phy:
fe0f2de3 1034 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1035 out_free_bf:
1036 if (mvm->bf_allowed_vif == mvmvif) {
1037 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1038 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1039 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1040 }
8ca151b5
JB		 1041 out_remove_mac:
1042 mvmvif->phy_ctxt = NULL;
1043 iwl_mvm_mac_ctxt_remove(mvm, vif);
1044 out_release:
5ee2b215
AB		 1045 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1046 mvm->vif_count--;
1c2abf72 1047
8ca151b5
JB		 1048 iwl_mvm_mac_ctxt_release(mvm, vif);
1049 out_unlock:
1050 mutex_unlock(&mvm->mutex);
1051
d40fc489
GG		 1052 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1053
8ca151b5
JB		 1054 return ret;
1055}
1056
38a12b5b
JB		 1057static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1058 struct ieee80211_vif *vif)
8ca151b5 1059{
8ca151b5
JB		 1060 u32 tfd_msk = 0, ac;
1061
1062 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
1063 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
1064 tfd_msk |= BIT(vif->hw_queue[ac]);
1065
1066 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
1067 tfd_msk |= BIT(vif->cab_queue);
1068
1069 if (tfd_msk) {
1070 mutex_lock(&mvm->mutex);
1071 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1072 mutex_unlock(&mvm->mutex);
1073 }
1074
1075 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1076 /*
1077 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1078 * We assume here that all the packets sent to the OFFCHANNEL
1079 * queue are sent in ROC session.
1080 */
1081 flush_work(&mvm->roc_done_wk);
1082 } else {
1083 /*
1084 * By now, all the AC queues are empty. The AGG queues are
1085 * empty too. We already got all the Tx responses for all the
1086 * packets in the queues. The drain work can have been
0742a75a 1087 * triggered. Flush it.
8ca151b5
JB		 1088 */
1089 flush_work(&mvm->sta_drained_wk);
1090 }
38a12b5b
JB		 1091}
1092
1093static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1094 struct ieee80211_vif *vif)
1095{
1096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1098
1099 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1100
1101 mutex_lock(&mvm->mutex);
1102
7df15b1e
HG		 1103 if (mvm->bf_allowed_vif == mvmvif) {
1104 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1105 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1106 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1107 }
1108
63494374
JB		 1109 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1110
8ca151b5
JB		 1111 /*
1112 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1113 * interface is be handled as part of the stop_ap flow.
8ca151b5 1114 */
5023d966
JB		 1115 if (vif->type == NL80211_IFTYPE_AP ||
1116 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1117#ifdef CONFIG_NL80211_TESTMODE
1118 if (vif == mvm->noa_vif) {
1119 mvm->noa_vif = NULL;
1120 mvm->noa_duration = 0;
1121 }
1122#endif
8ca151b5
JB		 1123 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
1124 goto out_release;
1125 }
1126
1127 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1128 mvm->p2p_device_vif = NULL;
1129 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1130 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1131 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1132 mvmvif->phy_ctxt = NULL;
1133 }
1134
5ee2b215 1135 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1136 mvm->vif_count--;
1c2abf72 1137
999609f1 1138 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1139 iwl_mvm_mac_ctxt_remove(mvm, vif);
1140
1141out_release:
1142 iwl_mvm_mac_ctxt_release(mvm, vif);
1143 mutex_unlock(&mvm->mutex);
1144}
1145
1146static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1147{
8ca151b5
JB		 1148 return 0;
1149}
1150
e59647ea
EP		 1151struct iwl_mvm_mc_iter_data {
1152 struct iwl_mvm *mvm;
1153 int port_id;
1154};
1155
1156static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1157 struct ieee80211_vif *vif)
1158{
1159 struct iwl_mvm_mc_iter_data *data = _data;
1160 struct iwl_mvm *mvm = data->mvm;
1161 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1162 int ret, len;
1163
1164 /* if we don't have free ports, mcast frames will be dropped */
1165 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1166 return;
1167
1168 if (vif->type != NL80211_IFTYPE_STATION ||
1169 !vif->bss_conf.assoc)
1170 return;
1171
1172 cmd->port_id = data->port_id++;
1173 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1174 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1175
1c4abec0 1176 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1177 if (ret)
1178 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1179}
1180
1181static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1182{
1183 struct iwl_mvm_mc_iter_data iter_data = {
1184 .mvm = mvm,
88f2fd73
MG		 1185 };
1186
e59647ea
EP		 1187 lockdep_assert_held(&mvm->mutex);
1188
1189 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1190 return;
1191
1c4abec0 1192 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1193 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1194 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1195}
1196
e59647ea
EP		 1197static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1198 struct netdev_hw_addr_list *mc_list)
8ca151b5 1199{
e59647ea
EP		 1200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1201 struct iwl_mcast_filter_cmd *cmd;
1202 struct netdev_hw_addr *addr;
1203 int addr_count = netdev_hw_addr_list_count(mc_list);
1204 bool pass_all = false;
1205 int len;
1206
1207 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
1208 pass_all = true;
1209 addr_count = 0;
1210 }
1211
1212 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1213 cmd = kzalloc(len, GFP_ATOMIC);
1214 if (!cmd)
1215 return 0;
1216
1217 if (pass_all) {
1218 cmd->pass_all = 1;
1219 return (u64)(unsigned long)cmd;
1220 }
1221
1222 netdev_hw_addr_list_for_each(addr, mc_list) {
1223 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1224 cmd->count, addr->addr);
1225 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1226 addr->addr, ETH_ALEN);
1227 cmd->count++;
1228 }
1229
1230 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1231}
1232
1233static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1234 unsigned int changed_flags,
1235 unsigned int *total_flags,
1236 u64 multicast)
1237{
e59647ea
EP		 1238 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1239 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1240
e59647ea 1241 mutex_lock(&mvm->mutex);
51b6b9e0 1242
e59647ea
EP		 1243 /* replace previous configuration */
1244 kfree(mvm->mcast_filter_cmd);
1245 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1246
e59647ea
EP		 1247 if (!cmd)
1248 goto out;
51b6b9e0 1249
e59647ea
EP		 1250 iwl_mvm_recalc_multicast(mvm);
1251out:
1252 mutex_unlock(&mvm->mutex);
1253 *total_flags = 0;
51b6b9e0
EG		 1254}
1255
c87163b9
EP		 1256#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1257struct iwl_bcast_iter_data {
1258 struct iwl_mvm *mvm;
1259 struct iwl_bcast_filter_cmd *cmd;
1260 u8 current_filter;
1261};
1262
1263static void
1264iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1265 const struct iwl_fw_bcast_filter *in_filter,
1266 struct iwl_fw_bcast_filter *out_filter)
1267{
1268 struct iwl_fw_bcast_filter_attr *attr;
1269 int i;
1270
1271 memcpy(out_filter, in_filter, sizeof(*out_filter));
1272
1273 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1274 attr = &out_filter->attrs[i];
1275
1276 if (!attr->mask)
1277 break;
1278
2ee8f021
EP		 1279 switch (attr->reserved1) {
1280 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1281 if (vif->bss_conf.arp_addr_cnt != 1) {
1282 attr->mask = 0;
1283 continue;
1284 }
1285
1286 attr->val = vif->bss_conf.arp_addr_list[0];
1287 break;
1288 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1289 attr->val = *(__be32 *)&vif->addr[2];
1290 break;
1291 default:
1292 break;
1293 }
1294 attr->reserved1 = 0;
c87163b9
EP		 1295 out_filter->num_attrs++;
1296 }
1297}
1298
1299static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1300 struct ieee80211_vif *vif)
1301{
1302 struct iwl_bcast_iter_data *data = _data;
1303 struct iwl_mvm *mvm = data->mvm;
1304 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1305 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1306 struct iwl_fw_bcast_mac *bcast_mac;
1307 int i;
1308
1309 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1310 return;
1311
1312 bcast_mac = &cmd->macs[mvmvif->id];
1313
e48393e8
IP		 1314 /*
1315 * enable filtering only for associated stations, but not for P2P
1316 * Clients
1317 */
1318 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1319 !vif->bss_conf.assoc)
c87163b9
EP		 1320 return;
1321
1322 bcast_mac->default_discard = 1;
1323
1324 /* copy all configured filters */
1325 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1326 /*
1327 * Make sure we don't exceed our filters limit.
1328 * if there is still a valid filter to be configured,
1329 * be on the safe side and just allow bcast for this mac.
1330 */
1331 if (WARN_ON_ONCE(data->current_filter >=
1332 ARRAY_SIZE(cmd->filters))) {
1333 bcast_mac->default_discard = 0;
1334 bcast_mac->attached_filters = 0;
1335 break;
1336 }
1337
1338 iwl_mvm_set_bcast_filter(vif,
1339 &mvm->bcast_filters[i],
1340 &cmd->filters[data->current_filter]);
1341
1342 /* skip current filter if it contains no attributes */
1343 if (!cmd->filters[data->current_filter].num_attrs)
1344 continue;
1345
1346 /* attach the filter to current mac */
1347 bcast_mac->attached_filters |=
1348 cpu_to_le16(BIT(data->current_filter));
1349
1350 data->current_filter++;
1351 }
1352}
1353
de06a59e
EP		 1354bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1355 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1356{
c87163b9
EP		 1357 struct iwl_bcast_iter_data iter_data = {
1358 .mvm = mvm,
de06a59e 1359 .cmd = cmd,
c87163b9
EP		 1360 };
1361
de06a59e
EP		 1362 memset(cmd, 0, sizeof(*cmd));
1363 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1364 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1365
1366#ifdef CONFIG_IWLWIFI_DEBUGFS
1367 /* use debugfs filters/macs if override is configured */
1368 if (mvm->dbgfs_bcast_filtering.override) {
1369 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1370 sizeof(cmd->filters));
1371 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1372 sizeof(cmd->macs));
1373 return true;
1374 }
1375#endif
c87163b9
EP		 1376
1377 /* if no filters are configured, do nothing */
1378 if (!mvm->bcast_filters)
de06a59e 1379 return false;
c87163b9
EP		 1380
1381 /* configure and attach these filters for each associated sta vif */
1382 ieee80211_iterate_active_interfaces(
1383 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1384 iwl_mvm_bcast_filter_iterator, &iter_data);
1385
de06a59e
EP		 1386 return true;
1387}
1388static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1389 struct ieee80211_vif *vif)
1390{
1391 struct iwl_bcast_filter_cmd cmd;
1392
1393 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1394 return 0;
1395
1396 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1397 return 0;
1398
a1022927 1399 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1400 sizeof(cmd), &cmd);
1401}
1402#else
1403static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1404 struct ieee80211_vif *vif)
1405{
1406 return 0;
1407}
1408#endif
1409
f697267f
AN		 1410static void iwl_mvm_teardown_tdls_peers(struct iwl_mvm *mvm)
1411{
1412 struct ieee80211_sta *sta;
1413 struct iwl_mvm_sta *mvmsta;
1414 int i;
1415
1416 lockdep_assert_held(&mvm->mutex);
1417
1418 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
1419 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
1420 lockdep_is_held(&mvm->mutex));
1421 if (!sta || IS_ERR(sta) || !sta->tdls)
1422 continue;
1423
1424 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1425 ieee80211_tdls_oper_request(mvmsta->vif, sta->addr,
1426 NL80211_TDLS_TEARDOWN,
1427 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED,
1428 GFP_KERNEL);
1429 }
1430}
1431
8ca151b5
JB		 1432static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1433 struct ieee80211_vif *vif,
1434 struct ieee80211_bss_conf *bss_conf,
1435 u32 changes)
1436{
1437 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1438 int ret;
1439
6e97b0d2
IP		 1440 /*
1441 * Re-calculate the tsf id, as the master-slave relations depend on the
1442 * beacon interval, which was not known when the station interface was
1443 * added.
1444 */
1445 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1446 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1447
bca49d9a 1448 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false);
8ca151b5
JB		 1449 if (ret)
1450 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1451
1452 if (changes & BSS_CHANGED_ASSOC) {
1453 if (bss_conf->assoc) {
1454 /* add quota for this interface */
0166230c 1455 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1456 if (ret) {
1457 IWL_ERR(mvm, "failed to update quotas\n");
1458 return;
1459 }
016d27e1
JB		 1460
1461 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1462 &mvm->status)) {
1463 /*
1464 * If we're restarting then the firmware will
1465 * obviously have lost synchronisation with
1466 * the AP. It will attempt to synchronise by
1467 * itself, but we can make it more reliable by
1468 * scheduling a session protection time event.
1469 *
1470 * The firmware needs to receive a beacon to
1471 * catch up with synchronisation, use 110% of
1472 * the beacon interval.
1473 *
1474 * Set a large maximum delay to allow for more
1475 * than a single interface.
1476 */
1477 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1478 iwl_mvm_protect_session(mvm, vif, dur, dur,
1479 5 * dur);
1480 }
1f3b0ff8
LE		 1481
1482 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1483 iwl_mvm_power_vif_assoc(mvm, vif);
29a90a49
EP		 1484 if (vif->p2p)
1485 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
8ca151b5 1486 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1487 /*
1488 * If update fails - SF might be running in associated
1489 * mode while disassociated - which is forbidden.
1490 */
1491 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1492 "Failed to update SF upon disassociation\n");
1493
8ca151b5
JB		 1494 /* remove AP station now that the MAC is unassoc */
1495 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1496 if (ret)
1497 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1498
1499 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1500 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1501 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1502 /* remove quota for this interface */
0166230c 1503 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1504 if (ret)
1505 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1506
1507 if (vif->p2p)
1508 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
8ca151b5 1509 }
a20fd398 1510
e59647ea 1511 iwl_mvm_recalc_multicast(mvm);
c87163b9 1512 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1513
a20fd398
AO		 1514 /* reset rssi values */
1515 mvmvif->bf_data.ave_beacon_signal = 0;
1516
8e484f0b 1517 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1518 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1519 IEEE80211_SMPS_AUTOMATIC);
989c6505 1520 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1521 /*
1522 * We received a beacon _after_ association so
1523 * remove the session protection.
1524 */
1525 iwl_mvm_remove_time_event(mvm, mvmvif,
1526 &mvmvif->time_event_data);
51498cf6
AB		 1527 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1528 BSS_CHANGED_QOS)) {
999609f1 1529 ret = iwl_mvm_power_update_mac(mvm);
4bf881f5
AB		 1530 if (ret)
1531 IWL_ERR(mvm, "failed to update power mode\n");
8ca151b5 1532 }
cc87d322
EH		 1533
1534 if (changes & BSS_CHANGED_BEACON_INFO) {
1535 iwl_mvm_sf_update(mvm, vif, false);
1536 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1537 }
1538
88f2fd73
MG		 1539 if (changes & BSS_CHANGED_TXPOWER) {
1540 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1541 bss_conf->txpower);
1542 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1543 }
a20fd398
AO		 1544
1545 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1546 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1547 /* reset cqm events tracking */
1548 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1549 if (mvmvif->bf_data.bf_enabled) {
1550 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1551 if (ret)
1552 IWL_ERR(mvm,
1553 "failed to update CQM thresholds\n");
1554 }
a20fd398 1555 }
2ee8f021
EP		 1556
1557 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1558 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1559 iwl_mvm_configure_bcast_filter(mvm, vif);
1560 }
8ca151b5
JB		 1561}
1562
5023d966
JB		 1563static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1564 struct ieee80211_vif *vif)
8ca151b5
JB		 1565{
1566 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1567 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1568 int ret;
1569
576eeee9
EP		 1570 /*
1571 * iwl_mvm_mac_ctxt_add() might read directly from the device
1572 * (the system time), so make sure it is available.
1573 */
1574 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1575 if (ret)
1576 return ret;
1577
8ca151b5
JB		 1578 mutex_lock(&mvm->mutex);
1579
1580 /* Send the beacon template */
1581 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1582 if (ret)
1583 goto out_unlock;
1584
6e97b0d2
IP		 1585 /*
1586 * Re-calculate the tsf id, as the master-slave relations depend on the
1587 * beacon interval, which was not known when the AP interface was added.
1588 */
1589 if (vif->type == NL80211_IFTYPE_AP)
1590 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1591
8ca151b5
JB		 1592 /* Add the mac context */
1593 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1594 if (ret)
1595 goto out_unlock;
1596
1597 /* Perform the binding */
1598 ret = iwl_mvm_binding_add_vif(mvm, vif);
1599 if (ret)
1600 goto out_remove;
1601
8ca151b5
JB		 1602 /* Send the bcast station. At this stage the TBTT and DTIM time events
1603 * are added and applied to the scheduler */
1604 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1605 if (ret)
1606 goto out_unbind;
1607
5691e218
IP		 1608 /* must be set before quota calculations */
1609 mvmvif->ap_ibss_active = true;
1610
a11e144e 1611 /* power updated needs to be done before quotas */
999609f1 1612 iwl_mvm_power_update_mac(mvm);
a11e144e 1613
0166230c 1614 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 1615 if (ret)
a11e144e 1616 goto out_quota_failed;
8ca151b5 1617
5023d966 1618 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1619 if (vif->p2p && mvm->p2p_device_vif)
bca49d9a 1620 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false);
8ca151b5 1621
29a90a49
EP		 1622 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1623
8e484f0b 1624 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1625
f697267f
AN		 1626 /* we don't support TDLS during DCM */
1627 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1628 iwl_mvm_teardown_tdls_peers(mvm);
1629
8ca151b5
JB		 1630 mutex_unlock(&mvm->mutex);
1631 return 0;
1632
a11e144e 1633out_quota_failed:
999609f1 1634 iwl_mvm_power_update_mac(mvm);
5691e218 1635 mvmvif->ap_ibss_active = false;
8ca151b5
JB		 1636 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1637out_unbind:
1638 iwl_mvm_binding_remove_vif(mvm, vif);
1639out_remove:
1640 iwl_mvm_mac_ctxt_remove(mvm, vif);
1641out_unlock:
1642 mutex_unlock(&mvm->mutex);
576eeee9 1643 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 1644 return ret;
1645}
1646
5023d966
JB		 1647static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1648 struct ieee80211_vif *vif)
8ca151b5
JB		 1649{
1650 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1651 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1652
38a12b5b
JB		 1653 iwl_mvm_prepare_mac_removal(mvm, vif);
1654
8ca151b5
JB		 1655 mutex_lock(&mvm->mutex);
1656
664322fa 1657 /* Handle AP stop while in CSA */
7f0a7c67
AO		 1658 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1659 iwl_mvm_remove_time_event(mvm, mvmvif,
1660 &mvmvif->time_event_data);
664322fa 1661 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 1662 }
664322fa 1663
003e5236
AO		 1664 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1665 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1666 mvm->csa_tx_block_bcn_timeout = 0;
1667 }
1668
5023d966 1669 mvmvif->ap_ibss_active = false;
1c87bbad 1670 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 1671
8e484f0b 1672 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1673
29a90a49
EP		 1674 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1675
5023d966 1676 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1677 if (vif->p2p && mvm->p2p_device_vif)
bca49d9a 1678 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false);
8ca151b5 1679
0166230c 1680 iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1681 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1682 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 1683
999609f1 1684 iwl_mvm_power_update_mac(mvm);
a11e144e 1685
8ca151b5
JB		 1686 iwl_mvm_mac_ctxt_remove(mvm, vif);
1687
1688 mutex_unlock(&mvm->mutex);
1689}
1690
5023d966
JB		 1691static void
1692iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1693 struct ieee80211_vif *vif,
1694 struct ieee80211_bss_conf *bss_conf,
1695 u32 changes)
8ca151b5 1696{
be2056fc 1697 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 1698
be2056fc
IP		 1699 /* Changes will be applied when the AP/IBSS is started */
1700 if (!mvmvif->ap_ibss_active)
1701 return;
1702
863230da
JB		 1703 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1704 BSS_CHANGED_BANDWIDTH) &&
bca49d9a 1705 iwl_mvm_mac_ctxt_changed(mvm, vif, false))
863230da 1706 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 1707
8ca151b5 1708 /* Need to send a new beacon template to the FW */
863230da
JB		 1709 if (changes & BSS_CHANGED_BEACON &&
1710 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1711 IWL_WARN(mvm, "Failed updating beacon data\n");
8ca151b5
JB		 1712}
1713
1714static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1715 struct ieee80211_vif *vif,
1716 struct ieee80211_bss_conf *bss_conf,
1717 u32 changes)
1718{
1719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1720
576eeee9
EP		 1721 /*
1722 * iwl_mvm_bss_info_changed_station() might call
1723 * iwl_mvm_protect_session(), which reads directly from
1724 * the device (the system time), so make sure it is available.
1725 */
1726 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1727 return;
1728
8ca151b5
JB		 1729 mutex_lock(&mvm->mutex);
1730
723f02ed 1731 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 1732 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 1733
8ca151b5
JB		 1734 switch (vif->type) {
1735 case NL80211_IFTYPE_STATION:
1736 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1737 break;
1738 case NL80211_IFTYPE_AP:
5023d966
JB		 1739 case NL80211_IFTYPE_ADHOC:
1740 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 1741 break;
1742 default:
1743 /* shouldn't happen */
1744 WARN_ON_ONCE(1);
1745 }
1746
1747 mutex_unlock(&mvm->mutex);
576eeee9 1748 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 1749}
1750
4660dfbb
EP		 1751static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1752 enum iwl_scan_status scan_type)
1753{
1754 int ret;
1755 bool wait_for_handlers = false;
1756
1757 mutex_lock(&mvm->mutex);
1758
1759 if (mvm->scan_status != scan_type) {
1760 ret = 0;
1761 /* make sure there are no pending notifications */
1762 wait_for_handlers = true;
1763 goto out;
1764 }
1765
1766 switch (scan_type) {
1767 case IWL_MVM_SCAN_SCHED:
1768 ret = iwl_mvm_scan_offload_stop(mvm, true);
1769 break;
1770 case IWL_MVM_SCAN_OS:
1771 ret = iwl_mvm_cancel_scan(mvm);
1772 break;
1773 case IWL_MVM_SCAN_NONE:
1774 default:
1775 WARN_ON_ONCE(1);
1776 ret = -EINVAL;
1777 break;
1778 }
1779 if (ret)
1780 goto out;
1781
1782 wait_for_handlers = true;
1783out:
1784 mutex_unlock(&mvm->mutex);
1785
1786 /* make sure we consume the completion notification */
1787 if (wait_for_handlers)
1788 iwl_mvm_wait_for_async_handlers(mvm);
1789
1790 return ret;
1791}
8ca151b5
JB		 1792static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1793 struct ieee80211_vif *vif,
c56ef672 1794 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 1795{
1796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 1797 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 1798 int ret;
1799
762533ba
DS		 1800 if (req->n_channels == 0 ||
1801 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 1802 return -EINVAL;
1803
4660dfbb
EP		 1804 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1805 if (ret)
1806 return ret;
1807
8ca151b5
JB		 1808 mutex_lock(&mvm->mutex);
1809
4660dfbb 1810 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 1811 ret = -EBUSY;
519e2026
AN		 1812 goto out;
1813 }
8ca151b5 1814
519e2026
AN		 1815 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1816
fb98be5e
DS		 1817 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1818 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
1819 else
1820 ret = iwl_mvm_scan_request(mvm, vif, req);
1821
519e2026
AN		 1822 if (ret)
1823 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1824out:
8ca151b5 1825 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 1826 return ret;
1827}
1828
1829static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1830 struct ieee80211_vif *vif)
1831{
1832 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1833
1834 mutex_lock(&mvm->mutex);
1835
1836 iwl_mvm_cancel_scan(mvm);
1837
1838 mutex_unlock(&mvm->mutex);
1839}
1840
1841static void
1842iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 1843 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 1844 int num_frames,
1845 enum ieee80211_frame_release_type reason,
1846 bool more_data)
1847{
1848 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 1849
3e56eadf 1850 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 1851
3e56eadf
JB		 1852 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1853 tids, more_data, false);
1854}
1855
1856static void
1857iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1858 struct ieee80211_sta *sta, u16 tids,
1859 int num_frames,
1860 enum ieee80211_frame_release_type reason,
1861 bool more_data)
1862{
1863 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1864
1865 /* Called when we need to transmit (a) frame(s) from agg queue */
1866
1867 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1868 tids, more_data, true);
8ca151b5
JB		 1869}
1870
1871static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1872 struct ieee80211_vif *vif,
1873 enum sta_notify_cmd cmd,
1874 struct ieee80211_sta *sta)
1875{
1876 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 1877 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 1878 int tid;
8ca151b5
JB		 1879
1880 switch (cmd) {
1881 case STA_NOTIFY_SLEEP:
e3d4bc8c 1882 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 1883 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 1884 spin_lock_bh(&mvmsta->lock);
1885 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1886 struct iwl_mvm_tid_data *tid_data;
1887
1888 tid_data = &mvmsta->tid_data[tid];
1889 if (tid_data->state != IWL_AGG_ON &&
1890 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1891 continue;
1892 if (iwl_mvm_tid_queued(tid_data) == 0)
1893 continue;
1894 ieee80211_sta_set_buffered(sta, tid, true);
1895 }
1896 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 1897 /*
1898 * The fw updates the STA to be asleep. Tx packets on the Tx
1899 * queues to this station will not be transmitted. The fw will
1900 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1901 */
1902 break;
1903 case STA_NOTIFY_AWAKE:
881acd89 1904 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 1905 break;
9cc40712 1906 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 1907 break;
1908 default:
1909 break;
1910 }
1911}
1912
1ddbbb0c
JB		 1913static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1914 struct ieee80211_vif *vif,
1915 struct ieee80211_sta *sta)
1916{
1917 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1918 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1919
1920 /*
1921 * This is called before mac80211 does RCU synchronisation,
1922 * so here we already invalidate our internal RCU-protected
1923 * station pointer. The rest of the code will thus no longer
1924 * be able to find the station this way, and we don't rely
1925 * on further RCU synchronisation after the sta_state()
1926 * callback deleted the station.
1927 */
1928 mutex_lock(&mvm->mutex);
1929 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1930 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1931 ERR_PTR(-ENOENT));
1932 mutex_unlock(&mvm->mutex);
1933}
1934
fa3d07e4 1935int iwl_mvm_tdls_sta_count(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
cf7b491d
AN		 1936{
1937 struct ieee80211_sta *sta;
fa3d07e4 1938 struct iwl_mvm_sta *mvmsta;
cf7b491d
AN		 1939 int count = 0;
1940 int i;
1941
1942 lockdep_assert_held(&mvm->mutex);
1943
1944 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
1945 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
1946 lockdep_is_held(&mvm->mutex));
1947 if (!sta || IS_ERR(sta) || !sta->tdls)
1948 continue;
1949
fa3d07e4
AN		 1950 if (vif) {
1951 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1952 if (mvmsta->vif != vif)
1953 continue;
1954 }
1955
cf7b491d
AN		 1956 count++;
1957 }
1958
1959 return count;
1960}
1961
fa3d07e4
AN		 1962static void iwl_mvm_recalc_tdls_state(struct iwl_mvm *mvm,
1963 struct ieee80211_vif *vif,
1964 bool sta_added)
1965{
1966 int tdls_sta_cnt = iwl_mvm_tdls_sta_count(mvm, vif);
1967
1968 /*
1969 * Disable ps when the first TDLS sta is added and re-enable it
1970 * when the last TDLS sta is removed
1971 */
1972 if ((tdls_sta_cnt == 1 && sta_added) ||
1973 (tdls_sta_cnt == 0 && !sta_added))
1974 iwl_mvm_power_update_mac(mvm);
1975}
1976
8ca151b5
JB		 1977static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1978 struct ieee80211_vif *vif,
1979 struct ieee80211_sta *sta,
1980 enum ieee80211_sta_state old_state,
1981 enum ieee80211_sta_state new_state)
1982{
1983 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1984 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1985 int ret;
1986
1987 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1988 sta->addr, old_state, new_state);
1989
1990 /* this would be a mac80211 bug ... but don't crash */
1991 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1992 return -EINVAL;
1993
1994 /* if a STA is being removed, reuse its ID */
1995 flush_work(&mvm->sta_drained_wk);
1996
1997 mutex_lock(&mvm->mutex);
1998 if (old_state == IEEE80211_STA_NOTEXIST &&
1999 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2000 /*
2001 * Firmware bug - it'll crash if the beacon interval is less
2002 * than 16. We can't avoid connecting at all, so refuse the
2003 * station state change, this will cause mac80211 to abandon
2004 * attempts to connect to this AP, and eventually wpa_s will
2005 * blacklist the AP...
2006 */
2007 if (vif->type == NL80211_IFTYPE_STATION &&
2008 vif->bss_conf.beacon_int < 16) {
2009 IWL_ERR(mvm,
2010 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2011 sta->addr, vif->bss_conf.beacon_int);
2012 ret = -EINVAL;
2013 goto out_unlock;
2014 }
cf7b491d
AN		 2015
2016 if (sta->tdls &&
2017 (vif->p2p ||
fa3d07e4
AN		 2018 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2019 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2020 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2021 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2022 ret = -EBUSY;
2023 goto out_unlock;
2024 }
2025
8ca151b5 2026 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2027 if (sta->tdls && ret == 0)
2028 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2029 } else if (old_state == IEEE80211_STA_NONE &&
2030 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2031 /*
2032 * EBS may be disabled due to previous failures reported by FW.
2033 * Reset EBS status here assuming environment has been changed.
2034 */
2035 mvm->last_ebs_successful = true;
8ca151b5
JB		 2036 ret = 0;
2037 } else if (old_state == IEEE80211_STA_AUTH &&
2038 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2039 ret = iwl_mvm_update_sta(mvm, vif, sta);
2040 if (ret == 0)
2041 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2042 mvmvif->phy_ctxt->channel->band,
2043 true);
8ca151b5
JB		 2044 } else if (old_state == IEEE80211_STA_ASSOC &&
2045 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2046
2047 /* we don't support TDLS during DCM */
2048 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2049 iwl_mvm_teardown_tdls_peers(mvm);
2050
7df15b1e 2051 /* enable beacon filtering */
fa7b2e7f 2052 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2053 ret = 0;
2054 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2055 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2056 /* disable beacon filtering */
a1022927 2057 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2058 ret = 0;
2059 } else if (old_state == IEEE80211_STA_ASSOC &&
2060 new_state == IEEE80211_STA_AUTH) {
2061 ret = 0;
2062 } else if (old_state == IEEE80211_STA_AUTH &&
2063 new_state == IEEE80211_STA_NONE) {
2064 ret = 0;
2065 } else if (old_state == IEEE80211_STA_NONE &&
2066 new_state == IEEE80211_STA_NOTEXIST) {
2067 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2068 if (sta->tdls)
2069 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2070 } else {
2071 ret = -EIO;
2072 }
48bc1307 2073 out_unlock:
8ca151b5
JB		 2074 mutex_unlock(&mvm->mutex);
2075
2076 return ret;
2077}
2078
2079static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2080{
2081 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2082
2083 mvm->rts_threshold = value;
2084
2085 return 0;
2086}
2087
1f3b0ff8
LE		 2088static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2089 struct ieee80211_vif *vif,
2090 struct ieee80211_sta *sta, u32 changed)
2091{
2092 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2093
2094 if (vif->type == NL80211_IFTYPE_STATION &&
2095 changed & IEEE80211_RC_NSS_CHANGED)
2096 iwl_mvm_sf_update(mvm, vif, false);
2097}
2098
8ca151b5
JB		 2099static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2100 struct ieee80211_vif *vif, u16 ac,
2101 const struct ieee80211_tx_queue_params *params)
2102{
2103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2104 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2105
2106 mvmvif->queue_params[ac] = *params;
2107
2108 /*
2109 * No need to update right away, we'll get BSS_CHANGED_QOS
2110 * The exception is P2P_DEVICE interface which needs immediate update.
2111 */
2112 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2113 int ret;
2114
2115 mutex_lock(&mvm->mutex);
bca49d9a 2116 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false);
8ca151b5
JB		 2117 mutex_unlock(&mvm->mutex);
2118 return ret;
2119 }
2120 return 0;
2121}
2122
2123static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2124 struct ieee80211_vif *vif)
2125{
2126 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2127 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2128 200 + vif->bss_conf.beacon_int);
2129 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2130 100 + vif->bss_conf.beacon_int);
2131
2132 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2133 return;
2134
576eeee9
EP		 2135 /*
2136 * iwl_mvm_protect_session() reads directly from the device
2137 * (the system time), so make sure it is available.
2138 */
2139 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2140 return;
2141
8ca151b5
JB		 2142 mutex_lock(&mvm->mutex);
2143 /* Try really hard to protect the session and hear a beacon */
016d27e1 2144 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
8ca151b5 2145 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2146
2147 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2148}
2149
07ecd897
AN		 2150static void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw *hw,
2151 struct ieee80211_vif *vif)
2152{
2153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2154 u32 duration = 2 * vif->bss_conf.dtim_period * vif->bss_conf.beacon_int;
2155
576eeee9
EP		 2156 /*
2157 * iwl_mvm_protect_session() reads directly from the device
2158 * (the system time), so make sure it is available.
2159 */
2160 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_TDLS))
2161 return;
2162
07ecd897
AN		 2163 mutex_lock(&mvm->mutex);
2164 /* Protect the session to hear the TDLS setup response on the channel */
2165 iwl_mvm_protect_session(mvm, vif, duration, duration, 100);
2166 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2167
2168 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_TDLS);
07ecd897
AN		 2169}
2170
35a000b7
DS		 2171static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2172 struct ieee80211_vif *vif,
2173 struct cfg80211_sched_scan_request *req,
633e2713 2174 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2175{
2176 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2177 int ret;
2178
4660dfbb
EP		 2179 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2180 if (ret)
2181 return ret;
2182
35a000b7
DS		 2183 mutex_lock(&mvm->mutex);
2184
b538b8ce 2185 if (!iwl_mvm_is_idle(mvm)) {
bd5e4744
DS		 2186 ret = -EBUSY;
2187 goto out;
2188 }
2189
4660dfbb 2190 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2191 ret = -EBUSY;
2192 goto out;
2193 }
2194
2195 mvm->scan_status = IWL_MVM_SCAN_SCHED;
2196
fb98be5e
DS		 2197 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
2198 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
2199 if (ret)
2200 goto err;
2201 }
35a000b7
DS		 2202
2203 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
2204 if (ret)
2205 goto err;
2206
fb98be5e
DS		 2207 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
2208 ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
2209 else
2210 ret = iwl_mvm_sched_scan_start(mvm, req);
2211
35a000b7
DS		 2212 if (!ret)
2213 goto out;
2214err:
2215 mvm->scan_status = IWL_MVM_SCAN_NONE;
2216out:
2217 mutex_unlock(&mvm->mutex);
2218 return ret;
2219}
2220
37e3308c
JB		 2221static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2222 struct ieee80211_vif *vif)
35a000b7
DS		 2223{
2224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2225 int ret;
35a000b7
DS		 2226
2227 mutex_lock(&mvm->mutex);
fb98be5e 2228 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2229 mutex_unlock(&mvm->mutex);
33ea27f6 2230 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2231
33ea27f6 2232 return ret;
35a000b7
DS		 2233}
2234
8ca151b5
JB		 2235static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2236 enum set_key_cmd cmd,
2237 struct ieee80211_vif *vif,
2238 struct ieee80211_sta *sta,
2239 struct ieee80211_key_conf *key)
2240{
2241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2242 int ret;
2243
2244 if (iwlwifi_mod_params.sw_crypto) {
2245 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2246 return -EOPNOTSUPP;
2247 }
2248
2249 switch (key->cipher) {
2250 case WLAN_CIPHER_SUITE_TKIP:
2251 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2252 /* fall-through */
2253 case WLAN_CIPHER_SUITE_CCMP:
2254 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2255 break;
2256 case WLAN_CIPHER_SUITE_AES_CMAC:
2257 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2258 break;
2259 case WLAN_CIPHER_SUITE_WEP40:
2260 case WLAN_CIPHER_SUITE_WEP104:
2261 /*
2262 * Support for TX only, at least for now, so accept
2263 * the key and do nothing else. Then mac80211 will
2264 * pass it for TX but we don't have to use it for RX.
2265 */
2266 return 0;
2267 default:
e36e5433
MS		 2268 /* currently FW supports only one optional cipher scheme */
2269 if (hw->n_cipher_schemes &&
2270 hw->cipher_schemes->cipher == key->cipher)
2271 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2272 else
2273 return -EOPNOTSUPP;
8ca151b5
JB		 2274 }
2275
2276 mutex_lock(&mvm->mutex);
2277
2278 switch (cmd) {
2279 case SET_KEY:
5023d966
JB		 2280 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2281 vif->type == NL80211_IFTYPE_AP) && !sta) {
2282 /*
2283 * GTK on AP interface is a TX-only key, return 0;
2284 * on IBSS they're per-station and because we're lazy
2285 * we don't support them for RX, so do the same.
2286 */
6caffd4f
JB		 2287 ret = 0;
2288 key->hw_key_idx = STA_KEY_IDX_INVALID;
2289 break;
2290 }
2291
8ca151b5
JB		 2292 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2293 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2294 if (ret) {
2295 IWL_WARN(mvm, "set key failed\n");
2296 /*
2297 * can't add key for RX, but we don't need it
2298 * in the device for TX so still return 0
2299 */
6caffd4f 2300 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2301 ret = 0;
2302 }
2303
2304 break;
2305 case DISABLE_KEY:
6caffd4f
JB		 2306 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2307 ret = 0;
2308 break;
2309 }
2310
8ca151b5
JB		 2311 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2312 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2313 break;
2314 default:
2315 ret = -EINVAL;
2316 }
2317
2318 mutex_unlock(&mvm->mutex);
2319 return ret;
2320}
2321
2322static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2323 struct ieee80211_vif *vif,
2324 struct ieee80211_key_conf *keyconf,
2325 struct ieee80211_sta *sta,
2326 u32 iv32, u16 *phase1key)
2327{
2328 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2329
5023d966
JB		 2330 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2331 return;
2332
8ca151b5
JB		 2333 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2334}
2335
2336
b112889c
AM		 2337static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2338 struct iwl_rx_packet *pkt, void *data)
2339{
2340 struct iwl_mvm *mvm =
2341 container_of(notif_wait, struct iwl_mvm, notif_wait);
2342 struct iwl_hs20_roc_res *resp;
2343 int resp_len = iwl_rx_packet_payload_len(pkt);
2344 struct iwl_mvm_time_event_data *te_data = data;
2345
2346 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2347 return true;
2348
2349 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2350 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2351 return true;
2352 }
2353
2354 resp = (void *)pkt->data;
2355
2356 IWL_DEBUG_TE(mvm,
2357 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2358 resp->status, resp->event_unique_id);
2359
2360 te_data->uid = le32_to_cpu(resp->event_unique_id);
2361 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2362 te_data->uid);
2363
2364 spin_lock_bh(&mvm->time_event_lock);
2365 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2366 spin_unlock_bh(&mvm->time_event_lock);
2367
2368 return true;
2369}
2370
2371#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2372static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2373 struct ieee80211_channel *channel,
2374 struct ieee80211_vif *vif,
2375 int duration)
2376{
2377 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2378 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2379 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2380 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2381 struct iwl_notification_wait wait_time_event;
2382 struct iwl_hs20_roc_req aux_roc_req = {
2383 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2384 .id_and_color =
2385 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2386 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2387 /* Set the channel info data */
2388 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2389 PHY_BAND_24 : PHY_BAND_5,
2390 .channel_info.channel = channel->hw_value,
2391 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2392 /* Set the time and duration */
2393 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2394 .apply_time_max_delay =
2395 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2396 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2397 };
2398
2399 /* Set the node address */
2400 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2401
2402 te_data->vif = vif;
2403 te_data->duration = duration;
2404 te_data->id = HOT_SPOT_CMD;
2405
2406 lockdep_assert_held(&mvm->mutex);
2407
2408 spin_lock_bh(&mvm->time_event_lock);
2409 list_add_tail(&te_data->list, &mvm->time_event_list);
2410 spin_unlock_bh(&mvm->time_event_lock);
2411
2412 /*
2413 * Use a notification wait, which really just processes the
2414 * command response and doesn't wait for anything, in order
2415 * to be able to process the response and get the UID inside
2416 * the RX path. Using CMD_WANT_SKB doesn't work because it
2417 * stores the buffer and then wakes up this thread, by which
2418 * time another notification (that the time event started)
2419 * might already be processed unsuccessfully.
2420 */
2421 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2422 time_event_response,
2423 ARRAY_SIZE(time_event_response),
2424 iwl_mvm_rx_aux_roc, te_data);
2425
2426 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2427 &aux_roc_req);
2428
2429 if (res) {
2430 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2431 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2432 goto out_clear_te;
2433 }
2434
2435 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2436 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2437 /* should never fail */
2438 WARN_ON_ONCE(res);
2439
2440 if (res) {
2441 out_clear_te:
2442 spin_lock_bh(&mvm->time_event_lock);
2443 iwl_mvm_te_clear_data(mvm, te_data);
2444 spin_unlock_bh(&mvm->time_event_lock);
2445 }
2446
2447 return res;
2448}
2449
8ca151b5
JB		 2450static int iwl_mvm_roc(struct ieee80211_hw *hw,
2451 struct ieee80211_vif *vif,
2452 struct ieee80211_channel *channel,
d339d5ca
IP		 2453 int duration,
2454 enum ieee80211_roc_type type)
8ca151b5
JB		 2455{
2456 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2457 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2458 struct cfg80211_chan_def chandef;
31d385ae
IP		 2459 struct iwl_mvm_phy_ctxt *phy_ctxt;
2460 int ret, i;
2461
2462 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2463 duration, type);
8ca151b5 2464
b112889c
AM		 2465 switch (vif->type) {
2466 case NL80211_IFTYPE_STATION:
2467 /* Use aux roc framework (HS20) */
2468 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2469 vif, duration);
2470 return ret;
2471 case NL80211_IFTYPE_P2P_DEVICE:
2472 /* handle below */
2473 break;
2474 default:
2475 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
8ca151b5
JB		 2476 return -EINVAL;
2477 }
2478
8ca151b5
JB		 2479 mutex_lock(&mvm->mutex);
2480
31d385ae
IP		 2481 for (i = 0; i < NUM_PHY_CTX; i++) {
2482 phy_ctxt = &mvm->phy_ctxts[i];
2483 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2484 continue;
2485
2486 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2487 /*
2488 * Unbind the P2P_DEVICE from the current PHY context,
2489 * and if the PHY context is not used remove it.
2490 */
2491 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2492 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2493 goto out_unlock;
2494
2495 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2496
2497 /* Bind the P2P_DEVICE to the current PHY Context */
2498 mvmvif->phy_ctxt = phy_ctxt;
2499
2500 ret = iwl_mvm_binding_add_vif(mvm, vif);
2501 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2502 goto out_unlock;
2503
2504 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2505 goto schedule_time_event;
2506 }
2507 }
2508
2509 /* Need to update the PHY context only if the ROC channel changed */
2510 if (channel == mvmvif->phy_ctxt->channel)
2511 goto schedule_time_event;
2512
8ca151b5 2513 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2514
31d385ae
IP		 2515 /*
2516 * Change the PHY context configuration as it is currently referenced
2517 * only by the P2P Device MAC
2518 */
2519 if (mvmvif->phy_ctxt->ref == 1) {
2520 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2521 &chandef, 1, 1);
2522 if (ret)
2523 goto out_unlock;
2524 } else {
2525 /*
2526 * The PHY context is shared with other MACs. Need to remove the
2527 * P2P Device from the binding, allocate an new PHY context and
2528 * create a new binding
2529 */
2530 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2531 if (!phy_ctxt) {
2532 ret = -ENOSPC;
2533 goto out_unlock;
2534 }
2535
2536 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2537 1, 1);
2538 if (ret) {
2539 IWL_ERR(mvm, "Failed to change PHY context\n");
2540 goto out_unlock;
2541 }
2542
2543 /* Unbind the P2P_DEVICE from the current PHY context */
2544 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2545 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2546 goto out_unlock;
2547
2548 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2549
2550 /* Bind the P2P_DEVICE to the new allocated PHY context */
2551 mvmvif->phy_ctxt = phy_ctxt;
2552
2553 ret = iwl_mvm_binding_add_vif(mvm, vif);
2554 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2555 goto out_unlock;
2556
2557 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2558 }
2559
2560schedule_time_event:
8ca151b5 2561 /* Schedule the time events */
e635c797 2562 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2563
31d385ae 2564out_unlock:
8ca151b5
JB		 2565 mutex_unlock(&mvm->mutex);
2566 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2567 return ret;
2568}
2569
2570static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2571{
2572 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2573
2574 IWL_DEBUG_MAC80211(mvm, "enter\n");
2575
2576 mutex_lock(&mvm->mutex);
2577 iwl_mvm_stop_p2p_roc(mvm);
2578 mutex_unlock(&mvm->mutex);
2579
2580 IWL_DEBUG_MAC80211(mvm, "leave\n");
2581 return 0;
2582}
2583
b08c1d97
LC		 2584static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2585 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2586{
fe0f2de3
IP		 2587 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2588 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2589 int ret;
2590
b08c1d97
LC		 2591 lockdep_assert_held(&mvm->mutex);
2592
53a9d61e 2593 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2594
fe0f2de3
IP		 2595 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2596 if (!phy_ctxt) {
2597 ret = -ENOSPC;
2598 goto out;
2599 }
8ca151b5 2600
dcbc3e1a 2601 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2602 ctx->rx_chains_static,
2603 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2604 if (ret) {
2605 IWL_ERR(mvm, "Failed to add PHY context\n");
2606 goto out;
2607 }
2608
53a9d61e 2609 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2610 *phy_ctxt_id = phy_ctxt->id;
2611out:
b08c1d97
LC		 2612 return ret;
2613}
2614
2615static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2616 struct ieee80211_chanctx_conf *ctx)
2617{
2618 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2619 int ret;
2620
2621 mutex_lock(&mvm->mutex);
2622 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2623 mutex_unlock(&mvm->mutex);
b08c1d97 2624
8ca151b5
JB		 2625 return ret;
2626}
2627
b08c1d97
LC		 2628static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2629 struct ieee80211_chanctx_conf *ctx)
2630{
2631 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2632 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2633
2634 lockdep_assert_held(&mvm->mutex);
2635
2636 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2637}
2638
8ca151b5
JB		 2639static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2640 struct ieee80211_chanctx_conf *ctx)
2641{
2642 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2643
2644 mutex_lock(&mvm->mutex);
b08c1d97 2645 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2646 mutex_unlock(&mvm->mutex);
2647}
2648
2649static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2650 struct ieee80211_chanctx_conf *ctx,
2651 u32 changed)
2652{
2653 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 2654 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2655 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 2656
31d385ae
IP		 2657 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2658 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2659 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 2660 IEEE80211_CHANCTX_CHANGE_RADAR |
2661 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 2662 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2663 phy_ctxt->ref, changed))
2664 return;
2665
8ca151b5 2666 mutex_lock(&mvm->mutex);
4d66449a 2667 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 2668 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 2669 ctx->rx_chains_static,
2670 ctx->rx_chains_dynamic);
2671 mutex_unlock(&mvm->mutex);
2672}
2673
b08c1d97
LC		 2674static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2675 struct ieee80211_vif *vif,
f0c97783
LC		 2676 struct ieee80211_chanctx_conf *ctx,
2677 bool switching_chanctx)
8ca151b5 2678{
fe0f2de3
IP		 2679 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2680 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 2681 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2682 int ret;
2683
b08c1d97 2684 lockdep_assert_held(&mvm->mutex);
8ca151b5 2685
fe0f2de3 2686 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 2687
2688 switch (vif->type) {
2689 case NL80211_IFTYPE_AP:
bd3398e2
AO		 2690 /* Unless it's a CSA flow we have nothing to do here */
2691 if (vif->csa_active) {
2692 mvmvif->ap_ibss_active = true;
2693 break;
2694 }
5023d966 2695 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 2696 /*
2697 * The AP binding flow is handled as part of the start_ap flow
5023d966 2698 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 2699 */
2700 ret = 0;
b08c1d97 2701 goto out;
8ca151b5 2702 case NL80211_IFTYPE_STATION:
8ca151b5
JB		 2703 case NL80211_IFTYPE_MONITOR:
2704 break;
2705 default:
2706 ret = -EINVAL;
b08c1d97 2707 goto out;
8ca151b5
JB		 2708 }
2709
2710 ret = iwl_mvm_binding_add_vif(mvm, vif);
2711 if (ret)
b08c1d97 2712 goto out;
8ca151b5
JB		 2713
2714 /*
92d85562
AB		 2715 * Power state must be updated before quotas,
2716 * otherwise fw will complain.
2717 */
999609f1 2718 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 2719
2720 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 2721 * interfaces. For the other types, the bss_info changed flow
2722 * will handle quota settings.
2723 */
2724 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 2725 mvmvif->monitor_active = true;
0166230c 2726 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 2727 if (ret)
2728 goto out_remove_binding;
2729 }
2730
bd3398e2 2731 /* Handle binding during CSA */
f0c97783
LC		 2732 if ((vif->type == NL80211_IFTYPE_AP) ||
2733 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
0166230c 2734 iwl_mvm_update_quotas(mvm, NULL);
bca49d9a 2735 iwl_mvm_mac_ctxt_changed(mvm, vif, false);
bd3398e2
AO		 2736 }
2737
b08c1d97 2738 goto out;
8ca151b5 2739
b08c1d97 2740out_remove_binding:
8ca151b5 2741 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 2742 iwl_mvm_power_update_mac(mvm);
b08c1d97 2743out:
8ca151b5
JB		 2744 if (ret)
2745 mvmvif->phy_ctxt = NULL;
2746 return ret;
2747}
b08c1d97
LC		 2748static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2749 struct ieee80211_vif *vif,
2750 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 2751{
2752 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 2753 int ret;
8ca151b5
JB		 2754
2755 mutex_lock(&mvm->mutex);
f0c97783 2756 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 2757 mutex_unlock(&mvm->mutex);
2758
2759 return ret;
2760}
2761
2762static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2763 struct ieee80211_vif *vif,
f0c97783
LC		 2764 struct ieee80211_chanctx_conf *ctx,
2765 bool switching_chanctx)
b08c1d97
LC		 2766{
2767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 2768 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 2769
2770 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 2771
2772 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2773
8ca151b5 2774 switch (vif->type) {
5023d966 2775 case NL80211_IFTYPE_ADHOC:
b08c1d97 2776 goto out;
8ca151b5 2777 case NL80211_IFTYPE_MONITOR:
1e1391ca 2778 mvmvif->monitor_active = false;
8ca151b5 2779 break;
bd3398e2
AO		 2780 case NL80211_IFTYPE_AP:
2781 /* This part is triggered only during CSA */
2782 if (!vif->csa_active || !mvmvif->ap_ibss_active)
b08c1d97 2783 goto out;
bd3398e2 2784
003e5236
AO		 2785 /* Set CS bit on all the stations */
2786 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2787
2788 /* Save blocked iface, the timeout is set on the next beacon */
2789 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2790
bd3398e2 2791 mvmvif->ap_ibss_active = false;
f0c97783
LC		 2792 break;
2793 case NL80211_IFTYPE_STATION:
2794 if (!switching_chanctx)
2795 break;
2796
2797 disabled_vif = vif;
2798
2799 iwl_mvm_mac_ctxt_changed(mvm, vif, true);
2800 break;
8ca151b5
JB		 2801 default:
2802 break;
2803 }
2804
f0c97783 2805 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 2806 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 2807
b08c1d97 2808out:
a11e144e 2809 mvmvif->phy_ctxt = NULL;
999609f1 2810 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 2811}
2812
2813static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2814 struct ieee80211_vif *vif,
2815 struct ieee80211_chanctx_conf *ctx)
2816{
2817 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2818
2819 mutex_lock(&mvm->mutex);
f0c97783 2820 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 2821 mutex_unlock(&mvm->mutex);
2822}
2823
b08c1d97
LC		 2824static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2825 struct ieee80211_vif_chanctx_switch *vifs,
2826 int n_vifs,
2827 enum ieee80211_chanctx_switch_mode mode)
2828{
2829 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2830 int ret;
2831
2832 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2833 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2834 return -EOPNOTSUPP;
2835
2836 mutex_lock(&mvm->mutex);
f0c97783 2837 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 2838 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2839
2840 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2841 if (ret) {
2842 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2843 goto out_reassign;
2844 }
2845
f0c97783
LC		 2846 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2847 true);
b08c1d97
LC		 2848 if (ret) {
2849 IWL_ERR(mvm,
2850 "failed to assign new_ctx during channel switch\n");
2851 goto out_remove;
2852 }
2853
f697267f
AN		 2854 /* we don't support TDLS during DCM - can be caused by channel switch */
2855 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2856 iwl_mvm_teardown_tdls_peers(mvm);
2857
b08c1d97
LC		 2858 goto out;
2859
2860out_remove:
2861 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2862
2863out_reassign:
2864 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2865 if (ret) {
2866 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2867 goto out_restart;
2868 }
2869
f0c97783
LC		 2870 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2871 true);
b08c1d97
LC		 2872 if (ret) {
2873 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2874 goto out_restart;
2875 }
2876
2877 goto out;
2878
2879out_restart:
2880 /* things keep failing, better restart the hw */
2881 iwl_mvm_nic_restart(mvm, false);
2882
2883out:
2884 mutex_unlock(&mvm->mutex);
2885 return ret;
2886}
2887
8ca151b5
JB		 2888static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2889 struct ieee80211_sta *sta,
2890 bool set)
2891{
2892 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2893 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2894
2895 if (!mvm_sta || !mvm_sta->vif) {
2896 IWL_ERR(mvm, "Station is not associated to a vif\n");
2897 return -EINVAL;
2898 }
2899
2900 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2901}
2902
507cadf2
DS		 2903#ifdef CONFIG_NL80211_TESTMODE
2904static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2905 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2906 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 2907 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 2908};
2909
2910static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2911 struct ieee80211_vif *vif,
2912 void *data, int len)
2913{
2914 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2915 int err;
2916 u32 noa_duration;
2917
2918 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2919 if (err)
2920 return err;
2921
2922 if (!tb[IWL_MVM_TM_ATTR_CMD])
2923 return -EINVAL;
2924
2925 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2926 case IWL_MVM_TM_CMD_SET_NOA:
2927 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2928 !vif->bss_conf.enable_beacon ||
2929 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2930 return -EINVAL;
2931
2932 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2933 if (noa_duration >= vif->bss_conf.beacon_int)
2934 return -EINVAL;
2935
2936 mvm->noa_duration = noa_duration;
2937 mvm->noa_vif = vif;
2938
0166230c 2939 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 2940 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2941 /* must be associated client vif - ignore authorized */
2942 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2943 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2944 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2945 return -EINVAL;
2946
2947 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 2948 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2949 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 2950 }
2951
2952 return -EOPNOTSUPP;
2953}
2954
2955static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2956 struct ieee80211_vif *vif,
2957 void *data, int len)
2958{
2959 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2960 int err;
2961
2962 mutex_lock(&mvm->mutex);
2963 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2964 mutex_unlock(&mvm->mutex);
2965
2966 return err;
2967}
2968#endif
2969
bd3398e2
AO		 2970static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
2971 struct ieee80211_vif *vif,
2972 struct cfg80211_chan_def *chandef)
2973{
2974 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 2975 struct ieee80211_vif *csa_vif;
bd3398e2
AO		 2976
2977 mutex_lock(&mvm->mutex);
664322fa
AO		 2978
2979 csa_vif = rcu_dereference_protected(mvm->csa_vif,
2980 lockdep_is_held(&mvm->mutex));
2981 if (WARN(csa_vif && csa_vif->csa_active,
bd3398e2
AO		 2982 "Another CSA is already in progress"))
2983 goto out_unlock;
2984
2985 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
2986 chandef->center_freq1);
664322fa 2987 rcu_assign_pointer(mvm->csa_vif, vif);
bd3398e2
AO		 2988
2989out_unlock:
2990 mutex_unlock(&mvm->mutex);
2991}
2992
c5b0e7c0
EG		 2993static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
2994 struct ieee80211_vif *vif, u32 queues, bool drop)
2995{
2996 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2997 struct iwl_mvm_vif *mvmvif;
2998 struct iwl_mvm_sta *mvmsta;
2999
3000 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3001 return;
3002
3003 mutex_lock(&mvm->mutex);
3004 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3005 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3006
3007 if (WARN_ON_ONCE(!mvmsta))
3008 goto done;
3009
3010 if (drop) {
3011 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3012 IWL_ERR(mvm, "flush request fail\n");
3013 } else {
3014 iwl_trans_wait_tx_queue_empty(mvm->trans,
3015 mvmsta->tfd_queue_msk);
3016 }
3017done:
3018 mutex_unlock(&mvm->mutex);
3019}
3020
e5209263 3021const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3022 .tx = iwl_mvm_mac_tx,
3023 .ampdu_action = iwl_mvm_mac_ampdu_action,
3024 .start = iwl_mvm_mac_start,
3025 .restart_complete = iwl_mvm_mac_restart_complete,
3026 .stop = iwl_mvm_mac_stop,
3027 .add_interface = iwl_mvm_mac_add_interface,
3028 .remove_interface = iwl_mvm_mac_remove_interface,
3029 .config = iwl_mvm_mac_config,
e59647ea 3030 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3031 .configure_filter = iwl_mvm_configure_filter,
3032 .bss_info_changed = iwl_mvm_bss_info_changed,
3033 .hw_scan = iwl_mvm_mac_hw_scan,
3034 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3035 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3036 .sta_state = iwl_mvm_mac_sta_state,
3037 .sta_notify = iwl_mvm_mac_sta_notify,
3038 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3039 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3040 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3041 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3042 .conf_tx = iwl_mvm_mac_conf_tx,
3043 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3044 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3045 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3046 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3047 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3048 .set_key = iwl_mvm_mac_set_key,
3049 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3050 .remain_on_channel = iwl_mvm_roc,
3051 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3052 .add_chanctx = iwl_mvm_add_chanctx,
3053 .remove_chanctx = iwl_mvm_remove_chanctx,
3054 .change_chanctx = iwl_mvm_change_chanctx,
3055 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3056 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3057 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3058
5023d966
JB		 3059 .start_ap = iwl_mvm_start_ap_ibss,
3060 .stop_ap = iwl_mvm_stop_ap_ibss,
3061 .join_ibss = iwl_mvm_start_ap_ibss,
3062 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3063
3064 .set_tim = iwl_mvm_set_tim,
3065
bd3398e2
AO		 3066 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3067
507cadf2
DS		 3068 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3069
8ca151b5
JB		 3070#ifdef CONFIG_PM_SLEEP
3071 /* look at d3.c */
3072 .suspend = iwl_mvm_suspend,
3073 .resume = iwl_mvm_resume,
3074 .set_wakeup = iwl_mvm_set_wakeup,
3075 .set_rekey_data = iwl_mvm_set_rekey_data,
3076#if IS_ENABLED(CONFIG_IPV6)
3077 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3078#endif
3079 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3080#endif
3081};
Linux kernel - Deliverables
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