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iwlwifi: mvm: rs: consider a missing BA as a single tx failure
[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.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
83#include "fw-api-scan.h"
84#include "iwl-phy-db.h"
507cadf2 85#include "testmode.h"
655e6d6d
EG		 86#include "iwl-fw-error-dump.h"
87#include "iwl-prph.h"
8ca151b5
JB		 88
89static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
90 {
91 .max = 1,
8eb38710 92 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 93 },
3c15a0fb
JB		 94 {
95 .max = 1,
8eb38710
IP		 96 .types = BIT(NL80211_IFTYPE_AP) |
97 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 98 BIT(NL80211_IFTYPE_P2P_GO),
99 },
100 {
101 .max = 1,
102 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
103 },
8ca151b5
JB		 104};
105
106static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
107 {
108 .num_different_channels = 1,
109 .max_interfaces = 3,
110 .limits = iwl_mvm_limits,
111 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
112 },
113};
114
f0c2646a
JB		 115#ifdef CONFIG_PM_SLEEP
116static const struct nl80211_wowlan_tcp_data_token_feature
117iwl_mvm_wowlan_tcp_token_feature = {
118 .min_len = 0,
119 .max_len = 255,
120 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
121};
122
123static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
124 .tok = &iwl_mvm_wowlan_tcp_token_feature,
125 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
129 .data_interval_max = 65535, /* __le16 in API */
130 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
131 sizeof(struct ethhdr) -
132 sizeof(struct iphdr) -
133 sizeof(struct tcphdr),
134 .seq = true,
135};
136#endif
137
77736923 138#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 139/*
140 * Use the reserved field to indicate magic values.
141 * these values will only be used internally by the driver,
142 * and won't make it to the fw (reserved will be 0).
143 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
144 * be the vif's ip address. in case there is not a single
145 * ip address (0, or more than 1), this attribute will
146 * be skipped.
147 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
148 * the LSB bytes of the vif's mac address
149 */
150enum {
151 BC_FILTER_MAGIC_NONE = 0,
152 BC_FILTER_MAGIC_IP,
153 BC_FILTER_MAGIC_MAC,
154};
155
77736923
EP		 156static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
157 {
158 /* arp */
159 .discard = 0,
160 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
161 .attrs = {
162 {
163 /* frame type - arp, hw type - ethernet */
164 .offset_type =
165 BCAST_FILTER_OFFSET_PAYLOAD_START,
166 .offset = sizeof(rfc1042_header),
167 .val = cpu_to_be32(0x08060001),
168 .mask = cpu_to_be32(0xffffffff),
169 },
2ee8f021
EP		 170 {
171 /* arp dest ip */
172 .offset_type =
173 BCAST_FILTER_OFFSET_PAYLOAD_START,
174 .offset = sizeof(rfc1042_header) + 2 +
175 sizeof(struct arphdr) +
176 ETH_ALEN + sizeof(__be32) +
177 ETH_ALEN,
178 .mask = cpu_to_be32(0xffffffff),
179 /* mark it as special field */
180 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
181 },
182 },
183 },
184 {
185 /* dhcp offer bcast */
186 .discard = 0,
187 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
188 .attrs = {
189 {
190 /* udp dest port - 68 (bootp client)*/
191 .offset_type = BCAST_FILTER_OFFSET_IP_END,
192 .offset = offsetof(struct udphdr, dest),
193 .val = cpu_to_be32(0x00440000),
194 .mask = cpu_to_be32(0xffff0000),
195 },
196 {
197 /* dhcp - lsb bytes of client hw address */
198 .offset_type = BCAST_FILTER_OFFSET_IP_END,
199 .offset = 38,
200 .mask = cpu_to_be32(0xffffffff),
201 /* mark it as special field */
202 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
203 },
77736923
EP		 204 },
205 },
206 /* last filter must be empty */
207 {},
208};
209#endif
210
7498cf4c
EP		 211void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
212{
7bb426ea 213 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 214 return;
215
216 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 217 spin_lock_bh(&mvm->refs_lock);
218 mvm->refs[ref_type]++;
219 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 220 iwl_trans_ref(mvm->trans);
221}
222
223void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
224{
7bb426ea 225 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 226 return;
227
228 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 229 spin_lock_bh(&mvm->refs_lock);
230 WARN_ON(!mvm->refs[ref_type]--);
231 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 232 iwl_trans_unref(mvm->trans);
233}
234
576eeee9
EP		 235static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
236 enum iwl_mvm_ref_type except_ref)
7498cf4c 237{
576eeee9 238 int i, j;
7498cf4c 239
7bb426ea 240 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 241 return;
242
576eeee9
EP		 243 spin_lock_bh(&mvm->refs_lock);
244 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
245 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 246 continue;
247
576eeee9
EP		 248 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
249 i, mvm->refs[i]);
250 for (j = 0; j < mvm->refs[i]; j++)
251 iwl_trans_unref(mvm->trans);
252 mvm->refs[i] = 0;
7498cf4c 253 }
576eeee9 254 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 255}
256
f4cf8680
EP		 257bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
258{
259 int i;
260 bool taken = false;
261
262 if (!iwl_mvm_is_d0i3_supported(mvm))
263 return true;
264
265 spin_lock_bh(&mvm->refs_lock);
266 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
267 if (mvm->refs[i]) {
268 taken = true;
269 break;
270 }
271 }
272 spin_unlock_bh(&mvm->refs_lock);
273
274 return taken;
275}
276
576eeee9 277int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 278{
279 iwl_mvm_ref(mvm, ref_type);
280
281 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
282 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
283 HZ)) {
284 WARN_ON_ONCE(1);
285 iwl_mvm_unref(mvm, ref_type);
286 return -EIO;
287 }
288
289 return 0;
290}
291
fe0f2de3
IP		 292static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
293{
294 int i;
295
296 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
297 for (i = 0; i < NUM_PHY_CTX; i++) {
298 mvm->phy_ctxts[i].id = i;
299 mvm->phy_ctxts[i].ref = 0;
300 }
301}
302
8ca151b5
JB		 303int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
304{
305 struct ieee80211_hw *hw = mvm->hw;
831e85f3 306 int num_mac, ret, i;
8ca151b5
JB		 307
308 /* Tell mac80211 our characteristics */
309 hw->flags = IEEE80211_HW_SIGNAL_DBM |
310 IEEE80211_HW_SPECTRUM_MGMT |
311 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
312 IEEE80211_HW_QUEUE_CONTROL |
313 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 314 IEEE80211_HW_SUPPORTS_PS |
315 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 316 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 317 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 318 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 319 IEEE80211_HW_CHANCTX_STA_CSA |
320 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 321
19e737c9 322 hw->queues = mvm->first_agg_queue;
398e8c6c 323 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 324 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
325 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
326 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
8ca151b5
JB		 327 hw->rate_control_algorithm = "iwl-mvm-rs";
328
329 /*
330 * Enable 11w if advertised by firmware and software crypto
331 * is not enabled (as the firmware will interpret some mgmt
332 * packets, so enabling it with software crypto isn't safe)
333 */
334 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
335 !iwlwifi_mod_params.sw_crypto)
336 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
337
1504f48d
MC		 338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
339 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
340 !iwlwifi_mod_params.uapsd_disable) {
341 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
4cb832d5 342 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
1504f48d
MC		 343 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
344 }
e8e626ad 345
d2496221
DS		 346 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
347 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
fb98be5e
DS		 348 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
349
8ca151b5
JB		 350 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
351 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 352 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 353
354 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 355 BIT(NL80211_IFTYPE_P2P_CLIENT) |
356 BIT(NL80211_IFTYPE_AP) |
357 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 358 BIT(NL80211_IFTYPE_P2P_DEVICE) |
359 BIT(NL80211_IFTYPE_ADHOC);
5023d966 360
a2f73b6c
LR		 361 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
362 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
363 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 364
3e56eadf
JB		 365 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
366 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
367
bd3398e2
AO		 368 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
369 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
370
8ca151b5
JB		 371 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
372 hw->wiphy->n_iface_combinations =
373 ARRAY_SIZE(iwl_mvm_iface_combinations);
374
c451e6d4 375 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 376 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
377
378 /* Extract MAC address */
379 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
380 hw->wiphy->addresses = mvm->addresses;
381 hw->wiphy->n_addresses = 1;
831e85f3
IP		 382
383 /* Extract additional MAC addresses if available */
384 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
385 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
386
387 for (i = 1; i < num_mac; i++) {
388 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 389 ETH_ALEN);
831e85f3 390 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 391 hw->wiphy->n_addresses++;
392 }
393
fe0f2de3
IP		 394 iwl_mvm_reset_phy_ctxts(mvm);
395
48849a41 396 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 397
8ca151b5
JB		 398 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
399
400 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
401 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
402 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
403 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
404 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
405 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
406
407 hw->wiphy->hw_version = mvm->trans->hw_id;
408
ade50652 409 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 410 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
411 else
412 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
413
6efaaf33
EG		 414 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
415 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
416 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
417 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
418 /* we create the 802.11 header and zero length SSID IE. */
419 hw->wiphy->max_sched_scan_ie_len =
420 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
421 }
35a000b7 422
8ca151b5 423 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 424 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 425 NL80211_FEATURE_P2P_GO_OPPPS |
426 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 427 NL80211_FEATURE_STATIC_SMPS |
428 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 429
f1daa00e
AO		 430 if (mvm->fw->ucode_capa.capa[0] &
431 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
432 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 433 if (mvm->fw->ucode_capa.capa[0] &
434 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
435 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 436
73897bd1
AO		 437 if (mvm->fw->ucode_capa.capa[0] &
438 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
439 hw->wiphy->features |=
440 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
441
442 if (mvm->fw->ucode_capa.capa[0] &
443 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
444 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
445
8ca151b5
JB		 446 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
447
e36e5433 448 /* currently FW API supports only one optional cipher scheme */
9ddca860 449 if (mvm->fw->cs[0].cipher) {
e36e5433 450 mvm->hw->n_cipher_schemes = 1;
9ddca860 451 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 452 }
453
8ca151b5 454#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 455 if (iwl_mvm_is_d0i3_supported(mvm) &&
456 device_can_wakeup(mvm->trans->dev)) {
457 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
458 hw->wiphy->wowlan = &mvm->wowlan;
459 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 460 mvm->trans->ops->d3_suspend &&
461 mvm->trans->ops->d3_resume &&
462 device_can_wakeup(mvm->trans->dev)) {
964dc9e2
JB		 463 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
464 WIPHY_WOWLAN_DISCONNECT |
465 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
466 WIPHY_WOWLAN_RFKILL_RELEASE;
8ca151b5 467 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 468 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
469 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
470 WIPHY_WOWLAN_4WAY_HANDSHAKE;
471
472 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
473 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
474 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
475 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
476 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 477 }
478#endif
479
77736923
EP		 480#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
481 /* assign default bcast filtering configuration */
482 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
483#endif
484
8ca151b5
JB		 485 ret = iwl_mvm_leds_init(mvm);
486 if (ret)
487 return ret;
488
b7327d89
EG		 489 ret = ieee80211_register_hw(mvm->hw);
490 if (ret)
491 iwl_mvm_leds_exit(mvm);
492
493 return ret;
8ca151b5
JB		 494}
495
b2492501
AN		 496static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
497 struct ieee80211_sta *sta,
498 struct sk_buff *skb)
499{
500 struct iwl_mvm_sta *mvmsta;
501 bool defer = false;
502
503 /*
504 * double check the IN_D0I3 flag both before and after
505 * taking the spinlock, in order to prevent taking
506 * the spinlock when not needed.
507 */
508 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
509 return false;
510
511 spin_lock(&mvm->d0i3_tx_lock);
512 /*
513 * testing the flag again ensures the skb dequeue
514 * loop (on d0i3 exit) hasn't run yet.
515 */
516 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
517 goto out;
518
519 mvmsta = iwl_mvm_sta_from_mac80211(sta);
520 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
521 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
522 goto out;
523
524 __skb_queue_tail(&mvm->d0i3_tx, skb);
525 ieee80211_stop_queues(mvm->hw);
526
527 /* trigger wakeup */
528 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
529 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
530
531 defer = true;
532out:
533 spin_unlock(&mvm->d0i3_tx_lock);
534 return defer;
535}
536
8ca151b5
JB		 537static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
538 struct ieee80211_tx_control *control,
539 struct sk_buff *skb)
540{
541 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 542 struct ieee80211_sta *sta = control->sta;
543 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
544 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 545
9ee718aa
EL		 546 if (iwl_mvm_is_radio_killed(mvm)) {
547 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 548 goto drop;
549 }
550
398e8c6c 551 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 552 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
553 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 554 goto drop;
555
3e56eadf
JB		 556 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
557 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
558 ieee80211_is_mgmt(hdr->frame_control) &&
559 !ieee80211_is_deauth(hdr->frame_control) &&
560 !ieee80211_is_disassoc(hdr->frame_control) &&
561 !ieee80211_is_action(hdr->frame_control)))
562 sta = NULL;
563
564 if (sta) {
b2492501
AN		 565 if (iwl_mvm_defer_tx(mvm, sta, skb))
566 return;
3e56eadf 567 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 568 goto drop;
569 return;
570 }
571
572 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
573 goto drop;
574 return;
575 drop:
576 ieee80211_free_txskb(hw, skb);
577}
578
205e2210
EG		 579static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
580{
581 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
582 return false;
583 return true;
584}
585
586static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
587{
588 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
589 return false;
590 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
591 return true;
592
593 /* enabled by default */
594 return true;
595}
596
8ca151b5
JB		 597static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
598 struct ieee80211_vif *vif,
599 enum ieee80211_ampdu_mlme_action action,
600 struct ieee80211_sta *sta, u16 tid,
601 u16 *ssn, u8 buf_size)
602{
603 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
604 int ret;
b2492501 605 bool tx_agg_ref = false;
8ca151b5
JB		 606
607 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
608 sta->addr, tid, action);
609
610 if (!(mvm->nvm_data->sku_cap_11n_enable))
611 return -EACCES;
612
b2492501 613 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 614 switch (action) {
615 case IEEE80211_AMPDU_TX_START:
616 case IEEE80211_AMPDU_TX_STOP_CONT:
617 case IEEE80211_AMPDU_TX_STOP_FLUSH:
618 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
619 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 620 /*
9256c205
EP		 621 * for tx start, wait synchronously until D0i3 exit to
622 * get the correct sequence number for the tid.
623 * additionally, some other ampdu actions use direct
624 * target access, which is not handled automatically
625 * by the trans layer (unlike commands), so wait for
626 * d0i3 exit in these cases as well.
b2492501 627 */
d40fc489
GG		 628 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
629 if (ret)
630 return ret;
631
632 tx_agg_ref = true;
9256c205
EP		 633 break;
634 default:
635 break;
b2492501
AN		 636 }
637
8ca151b5
JB		 638 mutex_lock(&mvm->mutex);
639
640 switch (action) {
641 case IEEE80211_AMPDU_RX_START:
205e2210 642 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 643 ret = -EINVAL;
644 break;
645 }
646 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
647 break;
648 case IEEE80211_AMPDU_RX_STOP:
649 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
650 break;
651 case IEEE80211_AMPDU_TX_START:
205e2210 652 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 653 ret = -EINVAL;
654 break;
655 }
8ca151b5
JB		 656 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
657 break;
658 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 659 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
660 break;
8ca151b5
JB		 661 case IEEE80211_AMPDU_TX_STOP_FLUSH:
662 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 663 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 664 break;
665 case IEEE80211_AMPDU_TX_OPERATIONAL:
666 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
667 break;
668 default:
669 WARN_ON_ONCE(1);
670 ret = -EINVAL;
671 break;
672 }
673 mutex_unlock(&mvm->mutex);
674
b2492501
AN		 675 /*
676 * If the tid is marked as started, we won't use it for offloaded
677 * traffic on the next D0i3 entry. It's safe to unref.
678 */
679 if (tx_agg_ref)
680 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
681
8ca151b5
JB		 682 return ret;
683}
684
685static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
686 struct ieee80211_vif *vif)
687{
688 struct iwl_mvm *mvm = data;
689 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
690
691 mvmvif->uploaded = false;
692 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
693
694 /* does this make sense at all? */
695 mvmvif->color++;
696
697 spin_lock_bh(&mvm->time_event_lock);
698 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
699 spin_unlock_bh(&mvm->time_event_lock);
700
fe0f2de3 701 mvmvif->phy_ctxt = NULL;
8a275bad 702 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 703}
704
aadede6e
JB		 705static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
706 const void *data, size_t datalen)
707{
708 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
709 ssize_t bytes_read;
710 ssize_t bytes_read_trans;
711
712 if (offset < dump_ptrs->op_mode_len) {
713 bytes_read = min_t(ssize_t, count,
714 dump_ptrs->op_mode_len - offset);
715 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
716 bytes_read);
717 offset += bytes_read;
718 count -= bytes_read;
719
720 if (count == 0)
721 return bytes_read;
722 } else {
723 bytes_read = 0;
724 }
725
726 if (!dump_ptrs->trans_ptr)
727 return bytes_read;
728
729 offset -= dump_ptrs->op_mode_len;
730 bytes_read_trans = min_t(ssize_t, count,
731 dump_ptrs->trans_ptr->len - offset);
732 memcpy(buffer + bytes_read,
733 (u8 *)dump_ptrs->trans_ptr->data + offset,
734 bytes_read_trans);
735
736 return bytes_read + bytes_read_trans;
737}
738
739static void iwl_mvm_free_coredump(const void *data)
740{
741 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
742
743 vfree(fw_error_dump->op_mode_ptr);
744 vfree(fw_error_dump->trans_ptr);
745 kfree(fw_error_dump);
746}
747
4bfa47f3 748void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 749{
750 struct iwl_fw_error_dump_file *dump_file;
751 struct iwl_fw_error_dump_data *dump_data;
752 struct iwl_fw_error_dump_info *dump_info;
48eb7b34 753 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d
EG		 754 const struct fw_img *img;
755 u32 sram_len, sram_ofs;
756 u32 file_len, rxf_len;
757 unsigned long flags;
655e6d6d
EG		 758 int reg_val;
759
760 lockdep_assert_held(&mvm->mutex);
761
aadede6e 762 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 763 if (!fw_error_dump)
764 return;
765
655e6d6d
EG		 766 img = &mvm->fw->img[mvm->cur_ucode];
767 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
768 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
769
770 /* reading buffer size */
771 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
772 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
773
774 /* the register holds the value divided by 128 */
775 rxf_len = rxf_len << 7;
776
777 file_len = sizeof(*dump_file) +
778 sizeof(*dump_data) * 3 +
779 sram_len +
780 rxf_len +
781 sizeof(*dump_info);
782
5bfe6f53 783 dump_file = vzalloc(file_len);
48eb7b34
EG		 784 if (!dump_file) {
785 kfree(fw_error_dump);
655e6d6d 786 return;
48eb7b34 787 }
655e6d6d 788
48eb7b34 789 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 790
791 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 792 dump_data = (void *)dump_file->data;
793
794 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
795 dump_data->len = cpu_to_le32(sizeof(*dump_info));
796 dump_info = (void *) dump_data->data;
797 dump_info->device_family =
798 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
799 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
800 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
801 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
802 sizeof(dump_info->fw_human_readable));
803 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
804 sizeof(dump_info->dev_human_readable));
805 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
806 sizeof(dump_info->bus_human_readable));
807
808 dump_data = iwl_fw_error_next_data(dump_data);
809 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
810 dump_data->len = cpu_to_le32(rxf_len);
811
812 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
813 u32 *rxf = (void *)dump_data->data;
814 int i;
815
816 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
817 iwl_trans_write_prph(mvm->trans,
818 RXF_LD_FENCE_OFFSET_ADDR,
819 i * sizeof(u32));
820 rxf[i] = iwl_trans_read_prph(mvm->trans,
821 RXF_FIFO_RD_FENCE_ADDR);
822 }
823 iwl_trans_release_nic_access(mvm->trans, &flags);
824 }
825
826 dump_data = iwl_fw_error_next_data(dump_data);
827 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
828 dump_data->len = cpu_to_le32(sram_len);
829 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
830 sram_len);
831
48eb7b34
EG		 832 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
833 fw_error_dump->op_mode_len = file_len;
834 if (fw_error_dump->trans_ptr)
835 file_len += fw_error_dump->trans_ptr->len;
836 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 837
aadede6e
JB		 838 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
839 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
655e6d6d 840}
655e6d6d 841
8ca151b5
JB		 842static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
843{
58629d9d
JB		 844 /* clear the D3 reconfig, we only need it to avoid dumping a
845 * firmware coredump on reconfiguration, we shouldn't do that
846 * on D3->D0 transition
847 */
848 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
849 iwl_mvm_fw_error_dump(mvm);
1bd3cbc1 850
8ca151b5 851 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 852
853 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 854 mvm->ps_disabled = false;
31b8b343 855 mvm->calibrating = false;
8ca151b5
JB		 856
857 /* just in case one was running */
858 ieee80211_remain_on_channel_expired(mvm->hw);
859
860 ieee80211_iterate_active_interfaces_atomic(
861 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
862 iwl_mvm_cleanup_iterator, mvm);
863
fe0f2de3 864 mvm->p2p_device_vif = NULL;
37577fe2 865 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 866
867 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 868 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
869 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
8a275bad
EG		 870 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
871 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
872 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
873 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
874 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
875 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 876
877 ieee80211_wake_queues(mvm->hw);
878
7498cf4c
EP		 879 /* cleanup all stale references (scan, roc), but keep the
880 * ucode_down ref until reconfig is complete */
881 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
882
228670b2
EP		 883 /* clear any stale d0i3 state */
884 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
885
8ca151b5 886 mvm->vif_count = 0;
113a0447 887 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 888}
889
a0a09243 890int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 891{
8ca151b5
JB		 892 int ret;
893
a0a09243 894 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 895
896 /* Clean up some internal and mac80211 state on restart */
897 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
898 iwl_mvm_restart_cleanup(mvm);
899
900 ret = iwl_mvm_up(mvm);
c47af22a
JB		 901
902 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
903 /* Something went wrong - we need to finish some cleanup
904 * that normally iwl_mvm_mac_restart_complete() below
905 * would do.
906 */
907 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
908 iwl_mvm_d0i3_enable_tx(mvm, NULL);
909 }
910
a0a09243
LC		 911 return ret;
912}
913
914static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
915{
916 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
917 int ret;
918
919 mutex_lock(&mvm->mutex);
920 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 921 mutex_unlock(&mvm->mutex);
922
923 return ret;
924}
925
cf2c92d8 926static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 927{
8ca151b5
JB		 928 int ret;
929
930 mutex_lock(&mvm->mutex);
931
932 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 933 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 934 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 935 if (ret)
936 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
937 ret);
938
7498cf4c
EP		 939 /* allow transport/FW low power modes */
940 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
941
8ca151b5
JB		 942 mutex_unlock(&mvm->mutex);
943}
944
088070a2
EP		 945static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
946{
947 bool exit_now;
948
949 if (!iwl_mvm_is_d0i3_supported(mvm))
950 return;
951
952 mutex_lock(&mvm->d0i3_suspend_mutex);
953 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
954 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
955 &mvm->d0i3_suspend_flags);
956 mutex_unlock(&mvm->d0i3_suspend_mutex);
957
958 if (exit_now) {
959 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
960 _iwl_mvm_exit_d0i3(mvm);
961 }
962}
963
cf2c92d8
EP		 964static void
965iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
966 enum ieee80211_reconfig_type reconfig_type)
967{
968 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
969
970 switch (reconfig_type) {
971 case IEEE80211_RECONFIG_TYPE_RESTART:
972 iwl_mvm_restart_complete(mvm);
973 break;
974 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 975 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 976 break;
977 }
978}
979
a0a09243 980void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 981{
a0a09243 982 lockdep_assert_held(&mvm->mutex);
7498cf4c
EP		 983
984 /* disallow low power states when the FW is down */
985 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
986
8ca151b5
JB		 987 /* async_handlers_wk is now blocked */
988
989 /*
990 * The work item could be running or queued if the
991 * ROC time event stops just as we get here.
992 */
993 cancel_work_sync(&mvm->roc_done_wk);
994
995 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 996
997 iwl_mvm_async_handlers_purge(mvm);
998 /* async_handlers_list is empty and will stay empty: HW is stopped */
999
1000 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1001 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1002
bc44886d 1003 mvm->ucode_loaded = false;
a0a09243 1004}
bc44886d 1005
a0a09243
LC		 1006static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1007{
1008 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1009
1010 flush_work(&mvm->d0i3_exit_work);
1011 flush_work(&mvm->async_handlers_wk);
4bfa47f3 1012 flush_work(&mvm->fw_error_dump_wk);
a0a09243
LC		 1013
1014 mutex_lock(&mvm->mutex);
1015 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1016 mutex_unlock(&mvm->mutex);
1017
1018 /*
1019 * The worker might have been waiting for the mutex, let it run and
1020 * discover that its list is now empty.
1021 */
1022 cancel_work_sync(&mvm->async_handlers_wk);
1023}
1024
fe0f2de3
IP		 1025static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1026{
1027 u16 i;
1028
1029 lockdep_assert_held(&mvm->mutex);
1030
1031 for (i = 0; i < NUM_PHY_CTX; i++)
1032 if (!mvm->phy_ctxts[i].ref)
1033 return &mvm->phy_ctxts[i];
1034
1035 IWL_ERR(mvm, "No available PHY context\n");
1036 return NULL;
1037}
1038
ee9c6cb0
EG		 1039static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1040 s8 tx_power)
1041{
1042 /* FW is in charge of regulatory enforcement */
1043 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1044 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1045 .pwr_restriction = cpu_to_le16(tx_power),
1046 };
1047
a1022927 1048 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1049 sizeof(reduce_txpwr_cmd),
1050 &reduce_txpwr_cmd);
1051}
1052
8ca151b5
JB		 1053static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1054 struct ieee80211_vif *vif)
1055{
1056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1057 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1058 int ret;
1059
d40fc489
GG		 1060 /*
1061 * make sure D0i3 exit is completed, otherwise a target access
1062 * during tx queue configuration could be done when still in
1063 * D0i3 state.
1064 */
1065 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1066 if (ret)
1067 return ret;
1068
8ca151b5
JB		 1069 /*
1070 * Not much to do here. The stack will not allow interface
1071 * types or combinations that we didn't advertise, so we
1072 * don't really have to check the types.
1073 */
1074
1075 mutex_lock(&mvm->mutex);
1076
e89044d7 1077 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1078 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1079 if (ret)
1080 goto out_unlock;
1081
1c2abf72 1082 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1083 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1084 mvm->vif_count++;
ea183d02 1085
8ca151b5
JB		 1086 /*
1087 * The AP binding flow can be done only after the beacon
1088 * template is configured (which happens only in the mac80211
1089 * start_ap() flow), and adding the broadcast station can happen
1090 * only after the binding.
1091 * In addition, since modifying the MAC before adding a bcast
1092 * station is not allowed by the FW, delay the adding of MAC context to
1093 * the point where we can also add the bcast station.
1094 * In short: there's not much we can do at this point, other than
1095 * allocating resources :)
1096 */
5023d966
JB		 1097 if (vif->type == NL80211_IFTYPE_AP ||
1098 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1099 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1100 if (ret) {
1101 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1102 goto out_release;
1103 }
1104
77740cb4 1105 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1106 goto out_unlock;
1107 }
1108
8ca151b5
JB		 1109 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1110 if (ret)
1111 goto out_release;
1112
999609f1 1113 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e
EG		 1114 if (ret)
1115 goto out_release;
8ca151b5 1116
7df15b1e 1117 /* beacon filtering */
a1022927 1118 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1119 if (ret)
1120 goto out_remove_mac;
1121
7df15b1e 1122 if (!mvm->bf_allowed_vif &&
73e5f2c5 1123 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1124 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1125 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1126 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1127 }
1128
8ca151b5
JB		 1129 /*
1130 * P2P_DEVICE interface does not have a channel context assigned to it,
1131 * so a dedicated PHY context is allocated to it and the corresponding
1132 * MAC context is bound to it at this stage.
1133 */
1134 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1135
fe0f2de3
IP		 1136 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1137 if (!mvmvif->phy_ctxt) {
1138 ret = -ENOSPC;
bd3351ba 1139 goto out_free_bf;
fe0f2de3 1140 }
8ca151b5 1141
53a9d61e 1142 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1143 ret = iwl_mvm_binding_add_vif(mvm, vif);
1144 if (ret)
53a9d61e 1145 goto out_unref_phy;
8ca151b5 1146
013290aa 1147 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1148 if (ret)
1149 goto out_unbind;
1150
1151 /* Save a pointer to p2p device vif, so it can later be used to
1152 * update the p2p device MAC when a GO is started/stopped */
1153 mvm->p2p_device_vif = vif;
1154 }
1155
63494374 1156 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1157 goto out_unlock;
1158
1159 out_unbind:
1160 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1161 out_unref_phy:
fe0f2de3 1162 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1163 out_free_bf:
1164 if (mvm->bf_allowed_vif == mvmvif) {
1165 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1166 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1167 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1168 }
8ca151b5
JB		 1169 out_remove_mac:
1170 mvmvif->phy_ctxt = NULL;
1171 iwl_mvm_mac_ctxt_remove(mvm, vif);
1172 out_release:
5ee2b215
AB		 1173 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1174 mvm->vif_count--;
1c2abf72 1175
8ca151b5
JB		 1176 iwl_mvm_mac_ctxt_release(mvm, vif);
1177 out_unlock:
1178 mutex_unlock(&mvm->mutex);
1179
d40fc489
GG		 1180 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1181
8ca151b5
JB		 1182 return ret;
1183}
1184
38a12b5b
JB		 1185static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1186 struct ieee80211_vif *vif)
8ca151b5 1187{
d92b732e 1188 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1189
1190 if (tfd_msk) {
1191 mutex_lock(&mvm->mutex);
1192 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1193 mutex_unlock(&mvm->mutex);
1194 }
1195
1196 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1197 /*
1198 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1199 * We assume here that all the packets sent to the OFFCHANNEL
1200 * queue are sent in ROC session.
1201 */
1202 flush_work(&mvm->roc_done_wk);
1203 } else {
1204 /*
1205 * By now, all the AC queues are empty. The AGG queues are
1206 * empty too. We already got all the Tx responses for all the
1207 * packets in the queues. The drain work can have been
0742a75a 1208 * triggered. Flush it.
8ca151b5
JB		 1209 */
1210 flush_work(&mvm->sta_drained_wk);
1211 }
38a12b5b
JB		 1212}
1213
1214static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1215 struct ieee80211_vif *vif)
1216{
1217 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1218 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1219
1220 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1221
1222 mutex_lock(&mvm->mutex);
1223
7df15b1e
HG		 1224 if (mvm->bf_allowed_vif == mvmvif) {
1225 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1226 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1227 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1228 }
1229
63494374
JB		 1230 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1231
8ca151b5
JB		 1232 /*
1233 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1234 * interface is be handled as part of the stop_ap flow.
8ca151b5 1235 */
5023d966
JB		 1236 if (vif->type == NL80211_IFTYPE_AP ||
1237 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1238#ifdef CONFIG_NL80211_TESTMODE
1239 if (vif == mvm->noa_vif) {
1240 mvm->noa_vif = NULL;
1241 mvm->noa_duration = 0;
1242 }
1243#endif
013290aa 1244 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1245 goto out_release;
1246 }
1247
1248 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1249 mvm->p2p_device_vif = NULL;
013290aa 1250 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1251 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1252 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1253 mvmvif->phy_ctxt = NULL;
1254 }
1255
5ee2b215 1256 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1257 mvm->vif_count--;
1c2abf72 1258
999609f1 1259 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1260 iwl_mvm_mac_ctxt_remove(mvm, vif);
1261
1262out_release:
1263 iwl_mvm_mac_ctxt_release(mvm, vif);
1264 mutex_unlock(&mvm->mutex);
1265}
1266
1267static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1268{
8ca151b5
JB		 1269 return 0;
1270}
1271
e59647ea
EP		 1272struct iwl_mvm_mc_iter_data {
1273 struct iwl_mvm *mvm;
1274 int port_id;
1275};
1276
1277static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1278 struct ieee80211_vif *vif)
1279{
1280 struct iwl_mvm_mc_iter_data *data = _data;
1281 struct iwl_mvm *mvm = data->mvm;
1282 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1283 int ret, len;
1284
1285 /* if we don't have free ports, mcast frames will be dropped */
1286 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1287 return;
1288
1289 if (vif->type != NL80211_IFTYPE_STATION ||
1290 !vif->bss_conf.assoc)
1291 return;
1292
1293 cmd->port_id = data->port_id++;
1294 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1295 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1296
1c4abec0 1297 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1298 if (ret)
1299 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1300}
1301
1302static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1303{
1304 struct iwl_mvm_mc_iter_data iter_data = {
1305 .mvm = mvm,
88f2fd73
MG		 1306 };
1307
e59647ea
EP		 1308 lockdep_assert_held(&mvm->mutex);
1309
1310 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1311 return;
1312
1c4abec0 1313 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1314 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1315 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1316}
1317
e59647ea
EP		 1318static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1319 struct netdev_hw_addr_list *mc_list)
8ca151b5 1320{
e59647ea
EP		 1321 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1322 struct iwl_mcast_filter_cmd *cmd;
1323 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1324 int addr_count;
1325 bool pass_all;
e59647ea
EP		 1326 int len;
1327
f3bd58f4
MS		 1328 addr_count = netdev_hw_addr_list_count(mc_list);
1329 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1330 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1331 if (pass_all)
e59647ea 1332 addr_count = 0;
e59647ea
EP		 1333
1334 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1335 cmd = kzalloc(len, GFP_ATOMIC);
1336 if (!cmd)
1337 return 0;
1338
1339 if (pass_all) {
1340 cmd->pass_all = 1;
1341 return (u64)(unsigned long)cmd;
1342 }
1343
1344 netdev_hw_addr_list_for_each(addr, mc_list) {
1345 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1346 cmd->count, addr->addr);
1347 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1348 addr->addr, ETH_ALEN);
1349 cmd->count++;
1350 }
1351
1352 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1353}
1354
1355static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1356 unsigned int changed_flags,
1357 unsigned int *total_flags,
1358 u64 multicast)
1359{
e59647ea
EP		 1360 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1361 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1362
e59647ea 1363 mutex_lock(&mvm->mutex);
51b6b9e0 1364
e59647ea
EP		 1365 /* replace previous configuration */
1366 kfree(mvm->mcast_filter_cmd);
1367 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1368
e59647ea
EP		 1369 if (!cmd)
1370 goto out;
51b6b9e0 1371
e59647ea
EP		 1372 iwl_mvm_recalc_multicast(mvm);
1373out:
1374 mutex_unlock(&mvm->mutex);
1375 *total_flags = 0;
51b6b9e0
EG		 1376}
1377
c87163b9
EP		 1378#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1379struct iwl_bcast_iter_data {
1380 struct iwl_mvm *mvm;
1381 struct iwl_bcast_filter_cmd *cmd;
1382 u8 current_filter;
1383};
1384
1385static void
1386iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1387 const struct iwl_fw_bcast_filter *in_filter,
1388 struct iwl_fw_bcast_filter *out_filter)
1389{
1390 struct iwl_fw_bcast_filter_attr *attr;
1391 int i;
1392
1393 memcpy(out_filter, in_filter, sizeof(*out_filter));
1394
1395 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1396 attr = &out_filter->attrs[i];
1397
1398 if (!attr->mask)
1399 break;
1400
2ee8f021
EP		 1401 switch (attr->reserved1) {
1402 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1403 if (vif->bss_conf.arp_addr_cnt != 1) {
1404 attr->mask = 0;
1405 continue;
1406 }
1407
1408 attr->val = vif->bss_conf.arp_addr_list[0];
1409 break;
1410 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1411 attr->val = *(__be32 *)&vif->addr[2];
1412 break;
1413 default:
1414 break;
1415 }
1416 attr->reserved1 = 0;
c87163b9
EP		 1417 out_filter->num_attrs++;
1418 }
1419}
1420
1421static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1422 struct ieee80211_vif *vif)
1423{
1424 struct iwl_bcast_iter_data *data = _data;
1425 struct iwl_mvm *mvm = data->mvm;
1426 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1428 struct iwl_fw_bcast_mac *bcast_mac;
1429 int i;
1430
1431 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1432 return;
1433
1434 bcast_mac = &cmd->macs[mvmvif->id];
1435
e48393e8
IP		 1436 /*
1437 * enable filtering only for associated stations, but not for P2P
1438 * Clients
1439 */
1440 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1441 !vif->bss_conf.assoc)
c87163b9
EP		 1442 return;
1443
1444 bcast_mac->default_discard = 1;
1445
1446 /* copy all configured filters */
1447 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1448 /*
1449 * Make sure we don't exceed our filters limit.
1450 * if there is still a valid filter to be configured,
1451 * be on the safe side and just allow bcast for this mac.
1452 */
1453 if (WARN_ON_ONCE(data->current_filter >=
1454 ARRAY_SIZE(cmd->filters))) {
1455 bcast_mac->default_discard = 0;
1456 bcast_mac->attached_filters = 0;
1457 break;
1458 }
1459
1460 iwl_mvm_set_bcast_filter(vif,
1461 &mvm->bcast_filters[i],
1462 &cmd->filters[data->current_filter]);
1463
1464 /* skip current filter if it contains no attributes */
1465 if (!cmd->filters[data->current_filter].num_attrs)
1466 continue;
1467
1468 /* attach the filter to current mac */
1469 bcast_mac->attached_filters |=
1470 cpu_to_le16(BIT(data->current_filter));
1471
1472 data->current_filter++;
1473 }
1474}
1475
de06a59e
EP		 1476bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1477 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1478{
c87163b9
EP		 1479 struct iwl_bcast_iter_data iter_data = {
1480 .mvm = mvm,
de06a59e 1481 .cmd = cmd,
c87163b9
EP		 1482 };
1483
3b8983b1
MS		 1484 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1485 return false;
1486
de06a59e
EP		 1487 memset(cmd, 0, sizeof(*cmd));
1488 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1489 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1490
1491#ifdef CONFIG_IWLWIFI_DEBUGFS
1492 /* use debugfs filters/macs if override is configured */
1493 if (mvm->dbgfs_bcast_filtering.override) {
1494 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1495 sizeof(cmd->filters));
1496 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1497 sizeof(cmd->macs));
1498 return true;
1499 }
1500#endif
c87163b9
EP		 1501
1502 /* if no filters are configured, do nothing */
1503 if (!mvm->bcast_filters)
de06a59e 1504 return false;
c87163b9
EP		 1505
1506 /* configure and attach these filters for each associated sta vif */
1507 ieee80211_iterate_active_interfaces(
1508 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1509 iwl_mvm_bcast_filter_iterator, &iter_data);
1510
de06a59e
EP		 1511 return true;
1512}
1513static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1514 struct ieee80211_vif *vif)
1515{
1516 struct iwl_bcast_filter_cmd cmd;
1517
1518 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1519 return 0;
1520
1521 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1522 return 0;
1523
a1022927 1524 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1525 sizeof(cmd), &cmd);
1526}
1527#else
1528static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1529 struct ieee80211_vif *vif)
1530{
1531 return 0;
1532}
1533#endif
1534
8ca151b5
JB		 1535static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1536 struct ieee80211_vif *vif,
1537 struct ieee80211_bss_conf *bss_conf,
1538 u32 changes)
1539{
1540 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1541 int ret;
1542
6e97b0d2
IP		 1543 /*
1544 * Re-calculate the tsf id, as the master-slave relations depend on the
1545 * beacon interval, which was not known when the station interface was
1546 * added.
1547 */
1548 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1549 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1550
3dfd3a97
JB		 1551 /*
1552 * If we're not associated yet, take the (new) BSSID before associating
1553 * so the firmware knows. If we're already associated, then use the old
1554 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1555 * branch for disassociation below.
1556 */
1557 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1558 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1559
1560 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1561 if (ret)
1562 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1563
3dfd3a97
JB		 1564 /* after sending it once, adopt mac80211 data */
1565 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1566 mvmvif->associated = bss_conf->assoc;
1567
8ca151b5
JB		 1568 if (changes & BSS_CHANGED_ASSOC) {
1569 if (bss_conf->assoc) {
1570 /* add quota for this interface */
0166230c 1571 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1572 if (ret) {
1573 IWL_ERR(mvm, "failed to update quotas\n");
1574 return;
1575 }
016d27e1
JB		 1576
1577 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1578 &mvm->status)) {
1579 /*
1580 * If we're restarting then the firmware will
1581 * obviously have lost synchronisation with
1582 * the AP. It will attempt to synchronise by
1583 * itself, but we can make it more reliable by
1584 * scheduling a session protection time event.
1585 *
1586 * The firmware needs to receive a beacon to
1587 * catch up with synchronisation, use 110% of
1588 * the beacon interval.
1589 *
1590 * Set a large maximum delay to allow for more
1591 * than a single interface.
1592 */
1593 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1594 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1595 5 * dur, false);
016d27e1 1596 }
1f3b0ff8
LE		 1597
1598 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1599 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1600 if (vif->p2p) {
29a90a49 1601 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1602 iwl_mvm_update_smps(mvm, vif,
1603 IWL_MVM_SMPS_REQ_PROT,
1604 IEEE80211_SMPS_DYNAMIC);
1605 }
8ca151b5 1606 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1607 /*
1608 * If update fails - SF might be running in associated
1609 * mode while disassociated - which is forbidden.
1610 */
1611 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1612 "Failed to update SF upon disassociation\n");
1613
8ca151b5
JB		 1614 /* remove AP station now that the MAC is unassoc */
1615 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1616 if (ret)
1617 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1618
1619 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1620 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1621 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1622 /* remove quota for this interface */
0166230c 1623 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1624 if (ret)
1625 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1626
1627 if (vif->p2p)
1628 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1629
1630 /* this will take the cleared BSSID from bss_conf */
1631 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1632 if (ret)
1633 IWL_ERR(mvm,
1634 "failed to update MAC %pM (clear after unassoc)\n",
1635 vif->addr);
8ca151b5 1636 }
a20fd398 1637
e59647ea 1638 iwl_mvm_recalc_multicast(mvm);
c87163b9 1639 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1640
a20fd398
AO		 1641 /* reset rssi values */
1642 mvmvif->bf_data.ave_beacon_signal = 0;
1643
8e484f0b 1644 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1645 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1646 IEEE80211_SMPS_AUTOMATIC);
989c6505 1647 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1648 /*
1649 * We received a beacon _after_ association so
1650 * remove the session protection.
1651 */
1652 iwl_mvm_remove_time_event(mvm, mvmvif,
1653 &mvmvif->time_event_data);
8ca151b5 1654 }
cc87d322
EH		 1655
1656 if (changes & BSS_CHANGED_BEACON_INFO) {
1657 iwl_mvm_sf_update(mvm, vif, false);
1658 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1659 }
1660
1bc10d3b
JB		 1661 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1662 ret = iwl_mvm_power_update_mac(mvm);
1663 if (ret)
1664 IWL_ERR(mvm, "failed to update power mode\n");
1665 }
1666
88f2fd73
MG		 1667 if (changes & BSS_CHANGED_TXPOWER) {
1668 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1669 bss_conf->txpower);
1670 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1671 }
a20fd398
AO		 1672
1673 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1674 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1675 /* reset cqm events tracking */
1676 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1677 if (mvmvif->bf_data.bf_enabled) {
1678 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1679 if (ret)
1680 IWL_ERR(mvm,
1681 "failed to update CQM thresholds\n");
1682 }
a20fd398 1683 }
2ee8f021
EP		 1684
1685 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1686 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1687 iwl_mvm_configure_bcast_filter(mvm, vif);
1688 }
8ca151b5
JB		 1689}
1690
5023d966
JB		 1691static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1692 struct ieee80211_vif *vif)
8ca151b5
JB		 1693{
1694 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1695 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1696 int ret;
1697
576eeee9
EP		 1698 /*
1699 * iwl_mvm_mac_ctxt_add() might read directly from the device
1700 * (the system time), so make sure it is available.
1701 */
1702 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1703 if (ret)
1704 return ret;
1705
8ca151b5
JB		 1706 mutex_lock(&mvm->mutex);
1707
1708 /* Send the beacon template */
1709 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1710 if (ret)
1711 goto out_unlock;
1712
6e97b0d2
IP		 1713 /*
1714 * Re-calculate the tsf id, as the master-slave relations depend on the
1715 * beacon interval, which was not known when the AP interface was added.
1716 */
1717 if (vif->type == NL80211_IFTYPE_AP)
1718 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1719
8ca151b5
JB		 1720 /* Add the mac context */
1721 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1722 if (ret)
1723 goto out_unlock;
1724
1725 /* Perform the binding */
1726 ret = iwl_mvm_binding_add_vif(mvm, vif);
1727 if (ret)
1728 goto out_remove;
1729
8ca151b5
JB		 1730 /* Send the bcast station. At this stage the TBTT and DTIM time events
1731 * are added and applied to the scheduler */
013290aa 1732 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1733 if (ret)
1734 goto out_unbind;
1735
5691e218
IP		 1736 /* must be set before quota calculations */
1737 mvmvif->ap_ibss_active = true;
1738
a11e144e 1739 /* power updated needs to be done before quotas */
999609f1 1740 iwl_mvm_power_update_mac(mvm);
a11e144e 1741
0166230c 1742 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 1743 if (ret)
a11e144e 1744 goto out_quota_failed;
8ca151b5 1745
5023d966 1746 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1747 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1748 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1749
29a90a49
EP		 1750 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1751
8e484f0b 1752 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1753
f697267f
AN		 1754 /* we don't support TDLS during DCM */
1755 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1756 iwl_mvm_teardown_tdls_peers(mvm);
1757
8ca151b5
JB		 1758 mutex_unlock(&mvm->mutex);
1759 return 0;
1760
a11e144e 1761out_quota_failed:
999609f1 1762 iwl_mvm_power_update_mac(mvm);
5691e218 1763 mvmvif->ap_ibss_active = false;
013290aa 1764 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 1765out_unbind:
1766 iwl_mvm_binding_remove_vif(mvm, vif);
1767out_remove:
1768 iwl_mvm_mac_ctxt_remove(mvm, vif);
1769out_unlock:
1770 mutex_unlock(&mvm->mutex);
576eeee9 1771 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 1772 return ret;
1773}
1774
5023d966
JB		 1775static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1776 struct ieee80211_vif *vif)
8ca151b5
JB		 1777{
1778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1779 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1780
38a12b5b
JB		 1781 iwl_mvm_prepare_mac_removal(mvm, vif);
1782
8ca151b5
JB		 1783 mutex_lock(&mvm->mutex);
1784
664322fa 1785 /* Handle AP stop while in CSA */
7f0a7c67
AO		 1786 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1787 iwl_mvm_remove_time_event(mvm, mvmvif,
1788 &mvmvif->time_event_data);
664322fa 1789 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 1790 }
664322fa 1791
003e5236
AO		 1792 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1793 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1794 mvm->csa_tx_block_bcn_timeout = 0;
1795 }
1796
5023d966 1797 mvmvif->ap_ibss_active = false;
1c87bbad 1798 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 1799
8e484f0b 1800 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1801
29a90a49
EP		 1802 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1803
5023d966 1804 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1805 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1806 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1807
0166230c 1808 iwl_mvm_update_quotas(mvm, NULL);
013290aa 1809 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 1810 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 1811
999609f1 1812 iwl_mvm_power_update_mac(mvm);
a11e144e 1813
8ca151b5
JB		 1814 iwl_mvm_mac_ctxt_remove(mvm, vif);
1815
1816 mutex_unlock(&mvm->mutex);
1817}
1818
5023d966
JB		 1819static void
1820iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1821 struct ieee80211_vif *vif,
1822 struct ieee80211_bss_conf *bss_conf,
1823 u32 changes)
8ca151b5 1824{
be2056fc 1825 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 1826
be2056fc
IP		 1827 /* Changes will be applied when the AP/IBSS is started */
1828 if (!mvmvif->ap_ibss_active)
1829 return;
1830
863230da 1831 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 1832 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 1833 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 1834 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 1835
8ca151b5 1836 /* Need to send a new beacon template to the FW */
863230da
JB		 1837 if (changes & BSS_CHANGED_BEACON &&
1838 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1839 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 1840
1841 if (changes & BSS_CHANGED_TXPOWER) {
1842 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1843 bss_conf->txpower);
1844 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1845 }
1846
8ca151b5
JB		 1847}
1848
1849static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1850 struct ieee80211_vif *vif,
1851 struct ieee80211_bss_conf *bss_conf,
1852 u32 changes)
1853{
1854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1855
576eeee9
EP		 1856 /*
1857 * iwl_mvm_bss_info_changed_station() might call
1858 * iwl_mvm_protect_session(), which reads directly from
1859 * the device (the system time), so make sure it is available.
1860 */
1861 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1862 return;
1863
8ca151b5
JB		 1864 mutex_lock(&mvm->mutex);
1865
723f02ed 1866 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 1867 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 1868
8ca151b5
JB		 1869 switch (vif->type) {
1870 case NL80211_IFTYPE_STATION:
1871 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1872 break;
1873 case NL80211_IFTYPE_AP:
5023d966
JB		 1874 case NL80211_IFTYPE_ADHOC:
1875 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 1876 break;
1877 default:
1878 /* shouldn't happen */
1879 WARN_ON_ONCE(1);
1880 }
1881
1882 mutex_unlock(&mvm->mutex);
576eeee9 1883 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 1884}
1885
4660dfbb
EP		 1886static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1887 enum iwl_scan_status scan_type)
1888{
1889 int ret;
1890 bool wait_for_handlers = false;
1891
1892 mutex_lock(&mvm->mutex);
1893
1894 if (mvm->scan_status != scan_type) {
1895 ret = 0;
1896 /* make sure there are no pending notifications */
1897 wait_for_handlers = true;
1898 goto out;
1899 }
1900
1901 switch (scan_type) {
1902 case IWL_MVM_SCAN_SCHED:
1903 ret = iwl_mvm_scan_offload_stop(mvm, true);
1904 break;
1905 case IWL_MVM_SCAN_OS:
1906 ret = iwl_mvm_cancel_scan(mvm);
1907 break;
1908 case IWL_MVM_SCAN_NONE:
1909 default:
1910 WARN_ON_ONCE(1);
1911 ret = -EINVAL;
1912 break;
1913 }
1914 if (ret)
1915 goto out;
1916
1917 wait_for_handlers = true;
1918out:
1919 mutex_unlock(&mvm->mutex);
1920
1921 /* make sure we consume the completion notification */
1922 if (wait_for_handlers)
1923 iwl_mvm_wait_for_async_handlers(mvm);
1924
1925 return ret;
1926}
8ca151b5
JB		 1927static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1928 struct ieee80211_vif *vif,
c56ef672 1929 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 1930{
1931 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 1932 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 1933 int ret;
1934
762533ba
DS		 1935 if (req->n_channels == 0 ||
1936 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 1937 return -EINVAL;
1938
d2496221
DS		 1939 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1940 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1941 if (ret)
1942 return ret;
1943 }
4660dfbb 1944
8ca151b5
JB		 1945 mutex_lock(&mvm->mutex);
1946
4660dfbb 1947 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 1948 ret = -EBUSY;
519e2026
AN		 1949 goto out;
1950 }
8ca151b5 1951
519e2026
AN		 1952 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1953
fb98be5e
DS		 1954 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1955 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
d2496221
DS		 1956 else if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
1957 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
fb98be5e
DS		 1958 else
1959 ret = iwl_mvm_scan_request(mvm, vif, req);
1960
519e2026
AN		 1961 if (ret)
1962 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1963out:
8ca151b5 1964 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 1965 return ret;
1966}
1967
1968static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1969 struct ieee80211_vif *vif)
1970{
1971 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1972
1973 mutex_lock(&mvm->mutex);
1974
1975 iwl_mvm_cancel_scan(mvm);
1976
1977 mutex_unlock(&mvm->mutex);
1978}
1979
1980static void
1981iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 1982 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 1983 int num_frames,
1984 enum ieee80211_frame_release_type reason,
1985 bool more_data)
1986{
1987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 1988
3e56eadf 1989 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 1990
3e56eadf
JB		 1991 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1992 tids, more_data, false);
1993}
1994
1995static void
1996iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1997 struct ieee80211_sta *sta, u16 tids,
1998 int num_frames,
1999 enum ieee80211_frame_release_type reason,
2000 bool more_data)
2001{
2002 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2003
2004 /* Called when we need to transmit (a) frame(s) from agg queue */
2005
2006 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2007 tids, more_data, true);
8ca151b5
JB		 2008}
2009
2010static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2011 struct ieee80211_vif *vif,
2012 enum sta_notify_cmd cmd,
2013 struct ieee80211_sta *sta)
2014{
2015 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2016 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2017 int tid;
8ca151b5
JB		 2018
2019 switch (cmd) {
2020 case STA_NOTIFY_SLEEP:
e3d4bc8c 2021 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2022 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2023 spin_lock_bh(&mvmsta->lock);
2024 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2025 struct iwl_mvm_tid_data *tid_data;
2026
2027 tid_data = &mvmsta->tid_data[tid];
2028 if (tid_data->state != IWL_AGG_ON &&
2029 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2030 continue;
2031 if (iwl_mvm_tid_queued(tid_data) == 0)
2032 continue;
2033 ieee80211_sta_set_buffered(sta, tid, true);
2034 }
2035 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2036 /*
2037 * The fw updates the STA to be asleep. Tx packets on the Tx
2038 * queues to this station will not be transmitted. The fw will
2039 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2040 */
2041 break;
2042 case STA_NOTIFY_AWAKE:
881acd89 2043 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2044 break;
9cc40712 2045 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2046 break;
2047 default:
2048 break;
2049 }
2050}
2051
1ddbbb0c
JB		 2052static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2053 struct ieee80211_vif *vif,
2054 struct ieee80211_sta *sta)
2055{
2056 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2057 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2058
2059 /*
2060 * This is called before mac80211 does RCU synchronisation,
2061 * so here we already invalidate our internal RCU-protected
2062 * station pointer. The rest of the code will thus no longer
2063 * be able to find the station this way, and we don't rely
2064 * on further RCU synchronisation after the sta_state()
2065 * callback deleted the station.
2066 */
2067 mutex_lock(&mvm->mutex);
2068 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2069 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2070 ERR_PTR(-ENOENT));
2071 mutex_unlock(&mvm->mutex);
2072}
2073
8ca151b5
JB		 2074static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2075 struct ieee80211_vif *vif,
2076 struct ieee80211_sta *sta,
2077 enum ieee80211_sta_state old_state,
2078 enum ieee80211_sta_state new_state)
2079{
2080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2081 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2082 int ret;
2083
2084 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2085 sta->addr, old_state, new_state);
2086
2087 /* this would be a mac80211 bug ... but don't crash */
2088 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2089 return -EINVAL;
2090
2091 /* if a STA is being removed, reuse its ID */
2092 flush_work(&mvm->sta_drained_wk);
2093
2094 mutex_lock(&mvm->mutex);
2095 if (old_state == IEEE80211_STA_NOTEXIST &&
2096 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2097 /*
2098 * Firmware bug - it'll crash if the beacon interval is less
2099 * than 16. We can't avoid connecting at all, so refuse the
2100 * station state change, this will cause mac80211 to abandon
2101 * attempts to connect to this AP, and eventually wpa_s will
2102 * blacklist the AP...
2103 */
2104 if (vif->type == NL80211_IFTYPE_STATION &&
2105 vif->bss_conf.beacon_int < 16) {
2106 IWL_ERR(mvm,
2107 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2108 sta->addr, vif->bss_conf.beacon_int);
2109 ret = -EINVAL;
2110 goto out_unlock;
2111 }
cf7b491d
AN		 2112
2113 if (sta->tdls &&
2114 (vif->p2p ||
fa3d07e4
AN		 2115 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2116 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2117 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2118 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2119 ret = -EBUSY;
2120 goto out_unlock;
2121 }
2122
8ca151b5 2123 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2124 if (sta->tdls && ret == 0)
2125 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2126 } else if (old_state == IEEE80211_STA_NONE &&
2127 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2128 /*
2129 * EBS may be disabled due to previous failures reported by FW.
2130 * Reset EBS status here assuming environment has been changed.
2131 */
2132 mvm->last_ebs_successful = true;
8ca151b5
JB		 2133 ret = 0;
2134 } else if (old_state == IEEE80211_STA_AUTH &&
2135 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2136 ret = iwl_mvm_update_sta(mvm, vif, sta);
2137 if (ret == 0)
2138 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2139 mvmvif->phy_ctxt->channel->band,
2140 true);
8ca151b5
JB		 2141 } else if (old_state == IEEE80211_STA_ASSOC &&
2142 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2143
2144 /* we don't support TDLS during DCM */
2145 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2146 iwl_mvm_teardown_tdls_peers(mvm);
2147
7df15b1e 2148 /* enable beacon filtering */
fa7b2e7f 2149 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2150 ret = 0;
2151 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2152 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2153 /* disable beacon filtering */
a1022927 2154 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2155 ret = 0;
2156 } else if (old_state == IEEE80211_STA_ASSOC &&
2157 new_state == IEEE80211_STA_AUTH) {
2158 ret = 0;
2159 } else if (old_state == IEEE80211_STA_AUTH &&
2160 new_state == IEEE80211_STA_NONE) {
2161 ret = 0;
2162 } else if (old_state == IEEE80211_STA_NONE &&
2163 new_state == IEEE80211_STA_NOTEXIST) {
2164 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2165 if (sta->tdls)
2166 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2167 } else {
2168 ret = -EIO;
2169 }
48bc1307 2170 out_unlock:
8ca151b5
JB		 2171 mutex_unlock(&mvm->mutex);
2172
2173 return ret;
2174}
2175
2176static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2177{
2178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2179
2180 mvm->rts_threshold = value;
2181
2182 return 0;
2183}
2184
1f3b0ff8
LE		 2185static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2186 struct ieee80211_vif *vif,
2187 struct ieee80211_sta *sta, u32 changed)
2188{
2189 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2190
2191 if (vif->type == NL80211_IFTYPE_STATION &&
2192 changed & IEEE80211_RC_NSS_CHANGED)
2193 iwl_mvm_sf_update(mvm, vif, false);
2194}
2195
8ca151b5
JB		 2196static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2197 struct ieee80211_vif *vif, u16 ac,
2198 const struct ieee80211_tx_queue_params *params)
2199{
2200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2201 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2202
2203 mvmvif->queue_params[ac] = *params;
2204
2205 /*
2206 * No need to update right away, we'll get BSS_CHANGED_QOS
2207 * The exception is P2P_DEVICE interface which needs immediate update.
2208 */
2209 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2210 int ret;
2211
2212 mutex_lock(&mvm->mutex);
3dfd3a97 2213 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2214 mutex_unlock(&mvm->mutex);
2215 return ret;
2216 }
2217 return 0;
2218}
2219
2220static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2221 struct ieee80211_vif *vif)
2222{
2223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2224 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2225 200 + vif->bss_conf.beacon_int);
2226 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2227 100 + vif->bss_conf.beacon_int);
2228
2229 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2230 return;
2231
576eeee9
EP		 2232 /*
2233 * iwl_mvm_protect_session() reads directly from the device
2234 * (the system time), so make sure it is available.
2235 */
2236 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2237 return;
2238
8ca151b5
JB		 2239 mutex_lock(&mvm->mutex);
2240 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2241 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2242 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2243
2244 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2245}
2246
35a000b7
DS		 2247static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2248 struct ieee80211_vif *vif,
2249 struct cfg80211_sched_scan_request *req,
633e2713 2250 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2251{
2252 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2253 int ret;
2254
d2496221
DS		 2255 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2256 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2257 if (ret)
2258 return ret;
2259 }
4660dfbb 2260
35a000b7
DS		 2261 mutex_lock(&mvm->mutex);
2262
59ecb128
AB		 2263 /* Newest FW fixes sched scan while connected on another interface */
2264 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2265 if (!vif->bss_conf.idle) {
2266 ret = -EBUSY;
2267 goto out;
2268 }
2269 } else if (!iwl_mvm_is_idle(mvm)) {
bd5e4744
DS		 2270 ret = -EBUSY;
2271 goto out;
2272 }
2273
4660dfbb 2274 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2275 ret = -EBUSY;
2276 goto out;
2277 }
2278
b141c235 2279 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2280 if (ret)
b141c235 2281 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2282
35a000b7
DS		 2283out:
2284 mutex_unlock(&mvm->mutex);
2285 return ret;
2286}
2287
37e3308c
JB		 2288static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2289 struct ieee80211_vif *vif)
35a000b7
DS		 2290{
2291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2292 int ret;
35a000b7
DS		 2293
2294 mutex_lock(&mvm->mutex);
fb98be5e 2295 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2296 mutex_unlock(&mvm->mutex);
33ea27f6 2297 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2298
33ea27f6 2299 return ret;
d2496221 2300
35a000b7
DS		 2301}
2302
8ca151b5
JB		 2303static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2304 enum set_key_cmd cmd,
2305 struct ieee80211_vif *vif,
2306 struct ieee80211_sta *sta,
2307 struct ieee80211_key_conf *key)
2308{
2309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2310 int ret;
2311
2312 if (iwlwifi_mod_params.sw_crypto) {
2313 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2314 return -EOPNOTSUPP;
2315 }
2316
2317 switch (key->cipher) {
2318 case WLAN_CIPHER_SUITE_TKIP:
2319 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2320 /* fall-through */
2321 case WLAN_CIPHER_SUITE_CCMP:
2322 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2323 break;
2324 case WLAN_CIPHER_SUITE_AES_CMAC:
2325 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2326 break;
2327 case WLAN_CIPHER_SUITE_WEP40:
2328 case WLAN_CIPHER_SUITE_WEP104:
2329 /*
2330 * Support for TX only, at least for now, so accept
2331 * the key and do nothing else. Then mac80211 will
2332 * pass it for TX but we don't have to use it for RX.
2333 */
2334 return 0;
2335 default:
e36e5433
MS		 2336 /* currently FW supports only one optional cipher scheme */
2337 if (hw->n_cipher_schemes &&
2338 hw->cipher_schemes->cipher == key->cipher)
2339 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2340 else
2341 return -EOPNOTSUPP;
8ca151b5
JB		 2342 }
2343
2344 mutex_lock(&mvm->mutex);
2345
2346 switch (cmd) {
2347 case SET_KEY:
5023d966
JB		 2348 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2349 vif->type == NL80211_IFTYPE_AP) && !sta) {
2350 /*
2351 * GTK on AP interface is a TX-only key, return 0;
2352 * on IBSS they're per-station and because we're lazy
2353 * we don't support them for RX, so do the same.
2354 */
6caffd4f
JB		 2355 ret = 0;
2356 key->hw_key_idx = STA_KEY_IDX_INVALID;
2357 break;
2358 }
2359
8ca151b5
JB		 2360 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2361 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2362 if (ret) {
2363 IWL_WARN(mvm, "set key failed\n");
2364 /*
2365 * can't add key for RX, but we don't need it
2366 * in the device for TX so still return 0
2367 */
6caffd4f 2368 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2369 ret = 0;
2370 }
2371
2372 break;
2373 case DISABLE_KEY:
6caffd4f
JB		 2374 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2375 ret = 0;
2376 break;
2377 }
2378
8ca151b5
JB		 2379 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2380 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2381 break;
2382 default:
2383 ret = -EINVAL;
2384 }
2385
2386 mutex_unlock(&mvm->mutex);
2387 return ret;
2388}
2389
2390static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2391 struct ieee80211_vif *vif,
2392 struct ieee80211_key_conf *keyconf,
2393 struct ieee80211_sta *sta,
2394 u32 iv32, u16 *phase1key)
2395{
2396 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2397
5023d966
JB		 2398 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2399 return;
2400
8ca151b5
JB		 2401 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2402}
2403
2404
b112889c
AM		 2405static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2406 struct iwl_rx_packet *pkt, void *data)
2407{
2408 struct iwl_mvm *mvm =
2409 container_of(notif_wait, struct iwl_mvm, notif_wait);
2410 struct iwl_hs20_roc_res *resp;
2411 int resp_len = iwl_rx_packet_payload_len(pkt);
2412 struct iwl_mvm_time_event_data *te_data = data;
2413
2414 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2415 return true;
2416
2417 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2418 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2419 return true;
2420 }
2421
2422 resp = (void *)pkt->data;
2423
2424 IWL_DEBUG_TE(mvm,
2425 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2426 resp->status, resp->event_unique_id);
2427
2428 te_data->uid = le32_to_cpu(resp->event_unique_id);
2429 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2430 te_data->uid);
2431
2432 spin_lock_bh(&mvm->time_event_lock);
2433 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2434 spin_unlock_bh(&mvm->time_event_lock);
2435
2436 return true;
2437}
2438
2439#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2440static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2441 struct ieee80211_channel *channel,
2442 struct ieee80211_vif *vif,
2443 int duration)
2444{
2445 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2446 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2447 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2448 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2449 struct iwl_notification_wait wait_time_event;
2450 struct iwl_hs20_roc_req aux_roc_req = {
2451 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2452 .id_and_color =
2453 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2454 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2455 /* Set the channel info data */
2456 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2457 PHY_BAND_24 : PHY_BAND_5,
2458 .channel_info.channel = channel->hw_value,
2459 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2460 /* Set the time and duration */
2461 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2462 .apply_time_max_delay =
2463 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2464 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2465 };
2466
2467 /* Set the node address */
2468 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2469
a6cc5163
MG		 2470 lockdep_assert_held(&mvm->mutex);
2471
2472 spin_lock_bh(&mvm->time_event_lock);
2473
2474 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2475 spin_unlock_bh(&mvm->time_event_lock);
2476 return -EIO;
2477 }
2478
b112889c
AM		 2479 te_data->vif = vif;
2480 te_data->duration = duration;
2481 te_data->id = HOT_SPOT_CMD;
2482
b112889c
AM		 2483 spin_unlock_bh(&mvm->time_event_lock);
2484
2485 /*
2486 * Use a notification wait, which really just processes the
2487 * command response and doesn't wait for anything, in order
2488 * to be able to process the response and get the UID inside
2489 * the RX path. Using CMD_WANT_SKB doesn't work because it
2490 * stores the buffer and then wakes up this thread, by which
2491 * time another notification (that the time event started)
2492 * might already be processed unsuccessfully.
2493 */
2494 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2495 time_event_response,
2496 ARRAY_SIZE(time_event_response),
2497 iwl_mvm_rx_aux_roc, te_data);
2498
2499 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2500 &aux_roc_req);
2501
2502 if (res) {
2503 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2504 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2505 goto out_clear_te;
2506 }
2507
2508 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2509 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2510 /* should never fail */
2511 WARN_ON_ONCE(res);
2512
2513 if (res) {
2514 out_clear_te:
2515 spin_lock_bh(&mvm->time_event_lock);
2516 iwl_mvm_te_clear_data(mvm, te_data);
2517 spin_unlock_bh(&mvm->time_event_lock);
2518 }
2519
2520 return res;
2521}
2522
8ca151b5
JB		 2523static int iwl_mvm_roc(struct ieee80211_hw *hw,
2524 struct ieee80211_vif *vif,
2525 struct ieee80211_channel *channel,
d339d5ca
IP		 2526 int duration,
2527 enum ieee80211_roc_type type)
8ca151b5
JB		 2528{
2529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2530 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2531 struct cfg80211_chan_def chandef;
31d385ae
IP		 2532 struct iwl_mvm_phy_ctxt *phy_ctxt;
2533 int ret, i;
2534
2535 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2536 duration, type);
8ca151b5 2537
a6cc5163
MG		 2538 mutex_lock(&mvm->mutex);
2539
b112889c
AM		 2540 switch (vif->type) {
2541 case NL80211_IFTYPE_STATION:
2542 /* Use aux roc framework (HS20) */
2543 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2544 vif, duration);
a6cc5163 2545 goto out_unlock;
b112889c
AM		 2546 case NL80211_IFTYPE_P2P_DEVICE:
2547 /* handle below */
2548 break;
2549 default:
2550 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2551 ret = -EINVAL;
2552 goto out_unlock;
8ca151b5
JB		 2553 }
2554
31d385ae
IP		 2555 for (i = 0; i < NUM_PHY_CTX; i++) {
2556 phy_ctxt = &mvm->phy_ctxts[i];
2557 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2558 continue;
2559
2560 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2561 /*
2562 * Unbind the P2P_DEVICE from the current PHY context,
2563 * and if the PHY context is not used remove it.
2564 */
2565 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2566 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2567 goto out_unlock;
2568
2569 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2570
2571 /* Bind the P2P_DEVICE to the current PHY Context */
2572 mvmvif->phy_ctxt = phy_ctxt;
2573
2574 ret = iwl_mvm_binding_add_vif(mvm, vif);
2575 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2576 goto out_unlock;
2577
2578 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2579 goto schedule_time_event;
2580 }
2581 }
2582
2583 /* Need to update the PHY context only if the ROC channel changed */
2584 if (channel == mvmvif->phy_ctxt->channel)
2585 goto schedule_time_event;
2586
8ca151b5 2587 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2588
31d385ae
IP		 2589 /*
2590 * Change the PHY context configuration as it is currently referenced
2591 * only by the P2P Device MAC
2592 */
2593 if (mvmvif->phy_ctxt->ref == 1) {
2594 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2595 &chandef, 1, 1);
2596 if (ret)
2597 goto out_unlock;
2598 } else {
2599 /*
2600 * The PHY context is shared with other MACs. Need to remove the
2601 * P2P Device from the binding, allocate an new PHY context and
2602 * create a new binding
2603 */
2604 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2605 if (!phy_ctxt) {
2606 ret = -ENOSPC;
2607 goto out_unlock;
2608 }
2609
2610 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2611 1, 1);
2612 if (ret) {
2613 IWL_ERR(mvm, "Failed to change PHY context\n");
2614 goto out_unlock;
2615 }
2616
2617 /* Unbind the P2P_DEVICE from the current PHY context */
2618 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2619 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2620 goto out_unlock;
2621
2622 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2623
2624 /* Bind the P2P_DEVICE to the new allocated PHY context */
2625 mvmvif->phy_ctxt = phy_ctxt;
2626
2627 ret = iwl_mvm_binding_add_vif(mvm, vif);
2628 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2629 goto out_unlock;
2630
2631 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2632 }
2633
2634schedule_time_event:
8ca151b5 2635 /* Schedule the time events */
e635c797 2636 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2637
31d385ae 2638out_unlock:
8ca151b5
JB		 2639 mutex_unlock(&mvm->mutex);
2640 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2641 return ret;
2642}
2643
2644static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2645{
2646 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2647
2648 IWL_DEBUG_MAC80211(mvm, "enter\n");
2649
2650 mutex_lock(&mvm->mutex);
2651 iwl_mvm_stop_p2p_roc(mvm);
2652 mutex_unlock(&mvm->mutex);
2653
2654 IWL_DEBUG_MAC80211(mvm, "leave\n");
2655 return 0;
2656}
2657
b08c1d97
LC		 2658static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2659 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2660{
fe0f2de3
IP		 2661 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2662 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2663 int ret;
2664
b08c1d97
LC		 2665 lockdep_assert_held(&mvm->mutex);
2666
53a9d61e 2667 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2668
fe0f2de3
IP		 2669 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2670 if (!phy_ctxt) {
2671 ret = -ENOSPC;
2672 goto out;
2673 }
8ca151b5 2674
dcbc3e1a 2675 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2676 ctx->rx_chains_static,
2677 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2678 if (ret) {
2679 IWL_ERR(mvm, "Failed to add PHY context\n");
2680 goto out;
2681 }
2682
53a9d61e 2683 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2684 *phy_ctxt_id = phy_ctxt->id;
2685out:
b08c1d97
LC		 2686 return ret;
2687}
2688
2689static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2690 struct ieee80211_chanctx_conf *ctx)
2691{
2692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2693 int ret;
2694
2695 mutex_lock(&mvm->mutex);
2696 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2697 mutex_unlock(&mvm->mutex);
b08c1d97 2698
8ca151b5
JB		 2699 return ret;
2700}
2701
b08c1d97
LC		 2702static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2703 struct ieee80211_chanctx_conf *ctx)
2704{
2705 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2706 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2707
2708 lockdep_assert_held(&mvm->mutex);
2709
2710 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2711}
2712
8ca151b5
JB		 2713static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2714 struct ieee80211_chanctx_conf *ctx)
2715{
2716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2717
2718 mutex_lock(&mvm->mutex);
b08c1d97 2719 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2720 mutex_unlock(&mvm->mutex);
2721}
2722
2723static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2724 struct ieee80211_chanctx_conf *ctx,
2725 u32 changed)
2726{
2727 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 2728 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2729 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 2730
31d385ae
IP		 2731 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2732 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2733 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 2734 IEEE80211_CHANCTX_CHANGE_RADAR |
2735 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 2736 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2737 phy_ctxt->ref, changed))
2738 return;
2739
8ca151b5 2740 mutex_lock(&mvm->mutex);
4d66449a 2741 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 2742 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 2743 ctx->rx_chains_static,
2744 ctx->rx_chains_dynamic);
2745 mutex_unlock(&mvm->mutex);
2746}
2747
b08c1d97
LC		 2748static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2749 struct ieee80211_vif *vif,
f0c97783
LC		 2750 struct ieee80211_chanctx_conf *ctx,
2751 bool switching_chanctx)
8ca151b5 2752{
fe0f2de3
IP		 2753 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2754 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 2755 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2756 int ret;
2757
b08c1d97 2758 lockdep_assert_held(&mvm->mutex);
8ca151b5 2759
fe0f2de3 2760 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 2761
2762 switch (vif->type) {
2763 case NL80211_IFTYPE_AP:
bd3398e2
AO		 2764 /* Unless it's a CSA flow we have nothing to do here */
2765 if (vif->csa_active) {
2766 mvmvif->ap_ibss_active = true;
2767 break;
2768 }
5023d966 2769 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 2770 /*
2771 * The AP binding flow is handled as part of the start_ap flow
5023d966 2772 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 2773 */
2774 ret = 0;
b08c1d97 2775 goto out;
8ca151b5 2776 case NL80211_IFTYPE_STATION:
2533edce 2777 break;
8ca151b5 2778 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 2779 /* always disable PS when a monitor interface is active */
2780 mvmvif->ps_disabled = true;
8ca151b5
JB		 2781 break;
2782 default:
2783 ret = -EINVAL;
b08c1d97 2784 goto out;
8ca151b5
JB		 2785 }
2786
2787 ret = iwl_mvm_binding_add_vif(mvm, vif);
2788 if (ret)
b08c1d97 2789 goto out;
8ca151b5
JB		 2790
2791 /*
92d85562
AB		 2792 * Power state must be updated before quotas,
2793 * otherwise fw will complain.
2794 */
999609f1 2795 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 2796
2797 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 2798 * interfaces. For the other types, the bss_info changed flow
2799 * will handle quota settings.
2800 */
2801 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 2802 mvmvif->monitor_active = true;
0166230c 2803 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 2804 if (ret)
2805 goto out_remove_binding;
2806 }
2807
bd3398e2 2808 /* Handle binding during CSA */
f0c97783
LC		 2809 if ((vif->type == NL80211_IFTYPE_AP) ||
2810 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
0166230c 2811 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 2812 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 2813 }
2814
0ce04ce7
LC		 2815 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2816 struct iwl_mvm_sta *mvmsta;
2817
2818 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2819 mvmvif->ap_sta_id);
2820
2821 if (WARN_ON(!mvmsta))
2822 goto out;
2823
2824 /* TODO: only re-enable after the first beacon */
2825 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2826 }
2827
b08c1d97 2828 goto out;
8ca151b5 2829
b08c1d97 2830out_remove_binding:
8ca151b5 2831 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 2832 iwl_mvm_power_update_mac(mvm);
b08c1d97 2833out:
8ca151b5
JB		 2834 if (ret)
2835 mvmvif->phy_ctxt = NULL;
2836 return ret;
2837}
b08c1d97
LC		 2838static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2839 struct ieee80211_vif *vif,
2840 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 2841{
2842 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 2843 int ret;
8ca151b5
JB		 2844
2845 mutex_lock(&mvm->mutex);
f0c97783 2846 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 2847 mutex_unlock(&mvm->mutex);
2848
2849 return ret;
2850}
2851
2852static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2853 struct ieee80211_vif *vif,
f0c97783
LC		 2854 struct ieee80211_chanctx_conf *ctx,
2855 bool switching_chanctx)
b08c1d97
LC		 2856{
2857 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 2858 struct ieee80211_vif *disabled_vif = NULL;
0ce04ce7 2859 struct iwl_mvm_sta *mvmsta;
b08c1d97
LC		 2860
2861 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 2862
2863 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2864
8ca151b5 2865 switch (vif->type) {
5023d966 2866 case NL80211_IFTYPE_ADHOC:
b08c1d97 2867 goto out;
8ca151b5 2868 case NL80211_IFTYPE_MONITOR:
1e1391ca 2869 mvmvif->monitor_active = false;
2533edce 2870 mvmvif->ps_disabled = false;
8ca151b5 2871 break;
bd3398e2
AO		 2872 case NL80211_IFTYPE_AP:
2873 /* This part is triggered only during CSA */
2874 if (!vif->csa_active || !mvmvif->ap_ibss_active)
b08c1d97 2875 goto out;
bd3398e2 2876
003e5236
AO		 2877 /* Set CS bit on all the stations */
2878 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2879
2880 /* Save blocked iface, the timeout is set on the next beacon */
2881 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2882
bd3398e2 2883 mvmvif->ap_ibss_active = false;
f0c97783
LC		 2884 break;
2885 case NL80211_IFTYPE_STATION:
2886 if (!switching_chanctx)
2887 break;
2888
2889 disabled_vif = vif;
2890
0ce04ce7
LC		 2891 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2892 mvmvif->ap_sta_id);
2893
2894 if (!WARN_ON(!mvmsta))
2895 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2896
3dfd3a97 2897 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 2898 break;
8ca151b5
JB		 2899 default:
2900 break;
2901 }
2902
f0c97783 2903 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 2904 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 2905
b08c1d97 2906out:
a11e144e 2907 mvmvif->phy_ctxt = NULL;
999609f1 2908 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 2909}
2910
2911static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2912 struct ieee80211_vif *vif,
2913 struct ieee80211_chanctx_conf *ctx)
2914{
2915 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2916
2917 mutex_lock(&mvm->mutex);
f0c97783 2918 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 2919 mutex_unlock(&mvm->mutex);
2920}
2921
b08c1d97
LC		 2922static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2923 struct ieee80211_vif_chanctx_switch *vifs,
2924 int n_vifs,
2925 enum ieee80211_chanctx_switch_mode mode)
2926{
2927 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2928 int ret;
2929
2930 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2931 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2932 return -EOPNOTSUPP;
2933
2934 mutex_lock(&mvm->mutex);
f0c97783 2935 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 2936 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2937
2938 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2939 if (ret) {
2940 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2941 goto out_reassign;
2942 }
2943
f0c97783
LC		 2944 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2945 true);
b08c1d97
LC		 2946 if (ret) {
2947 IWL_ERR(mvm,
2948 "failed to assign new_ctx during channel switch\n");
2949 goto out_remove;
2950 }
2951
f697267f
AN		 2952 /* we don't support TDLS during DCM - can be caused by channel switch */
2953 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2954 iwl_mvm_teardown_tdls_peers(mvm);
2955
b08c1d97
LC		 2956 goto out;
2957
2958out_remove:
2959 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2960
2961out_reassign:
2962 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2963 if (ret) {
2964 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2965 goto out_restart;
2966 }
2967
f0c97783
LC		 2968 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2969 true);
b08c1d97
LC		 2970 if (ret) {
2971 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2972 goto out_restart;
2973 }
2974
2975 goto out;
2976
2977out_restart:
2978 /* things keep failing, better restart the hw */
2979 iwl_mvm_nic_restart(mvm, false);
2980
2981out:
2982 mutex_unlock(&mvm->mutex);
2983 return ret;
2984}
2985
8ca151b5
JB		 2986static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2987 struct ieee80211_sta *sta,
2988 bool set)
2989{
2990 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2991 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2992
2993 if (!mvm_sta || !mvm_sta->vif) {
2994 IWL_ERR(mvm, "Station is not associated to a vif\n");
2995 return -EINVAL;
2996 }
2997
2998 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2999}
3000
507cadf2
DS		 3001#ifdef CONFIG_NL80211_TESTMODE
3002static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3003 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3004 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3005 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3006};
3007
3008static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3009 struct ieee80211_vif *vif,
3010 void *data, int len)
3011{
3012 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3013 int err;
3014 u32 noa_duration;
3015
3016 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3017 if (err)
3018 return err;
3019
3020 if (!tb[IWL_MVM_TM_ATTR_CMD])
3021 return -EINVAL;
3022
3023 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3024 case IWL_MVM_TM_CMD_SET_NOA:
3025 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3026 !vif->bss_conf.enable_beacon ||
3027 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3028 return -EINVAL;
3029
3030 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3031 if (noa_duration >= vif->bss_conf.beacon_int)
3032 return -EINVAL;
3033
3034 mvm->noa_duration = noa_duration;
3035 mvm->noa_vif = vif;
3036
0166230c 3037 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3038 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3039 /* must be associated client vif - ignore authorized */
3040 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3041 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3042 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3043 return -EINVAL;
3044
3045 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3046 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3047 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3048 }
3049
3050 return -EOPNOTSUPP;
3051}
3052
3053static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3054 struct ieee80211_vif *vif,
3055 void *data, int len)
3056{
3057 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3058 int err;
3059
3060 mutex_lock(&mvm->mutex);
3061 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3062 mutex_unlock(&mvm->mutex);
3063
3064 return err;
3065}
3066#endif
3067
bd3398e2
AO		 3068static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
3069 struct ieee80211_vif *vif,
3070 struct cfg80211_chan_def *chandef)
3071{
3072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3073 struct ieee80211_vif *csa_vif;
bd3398e2
AO		 3074
3075 mutex_lock(&mvm->mutex);
664322fa
AO		 3076
3077 csa_vif = rcu_dereference_protected(mvm->csa_vif,
3078 lockdep_is_held(&mvm->mutex));
3079 if (WARN(csa_vif && csa_vif->csa_active,
bd3398e2
AO		 3080 "Another CSA is already in progress"))
3081 goto out_unlock;
3082
3083 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
3084 chandef->center_freq1);
664322fa 3085 rcu_assign_pointer(mvm->csa_vif, vif);
bd3398e2
AO		 3086
3087out_unlock:
3088 mutex_unlock(&mvm->mutex);
3089}
3090
c5b0e7c0
EG		 3091static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3092 struct ieee80211_vif *vif, u32 queues, bool drop)
3093{
3094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3095 struct iwl_mvm_vif *mvmvif;
3096 struct iwl_mvm_sta *mvmsta;
3097
3098 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3099 return;
3100
3101 mutex_lock(&mvm->mutex);
3102 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3103 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3104
480acbce
JB		 3105 if (WARN_ON_ONCE(!mvmsta)) {
3106 mutex_unlock(&mvm->mutex);
3107 return;
3108 }
c5b0e7c0
EG		 3109
3110 if (drop) {
3111 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3112 IWL_ERR(mvm, "flush request fail\n");
480acbce 3113 mutex_unlock(&mvm->mutex);
c5b0e7c0 3114 } else {
480acbce
JB		 3115 u32 tfd_queue_msk = mvmsta->tfd_queue_msk;
3116 mutex_unlock(&mvm->mutex);
3117
3118 /* this can take a while, and we may need/want other operations
3119 * to succeed while doing this, so do it without the mutex held
3120 */
3121 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_queue_msk);
c5b0e7c0 3122 }
c5b0e7c0
EG		 3123}
3124
e5209263 3125const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3126 .tx = iwl_mvm_mac_tx,
3127 .ampdu_action = iwl_mvm_mac_ampdu_action,
3128 .start = iwl_mvm_mac_start,
cf2c92d8 3129 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3130 .stop = iwl_mvm_mac_stop,
3131 .add_interface = iwl_mvm_mac_add_interface,
3132 .remove_interface = iwl_mvm_mac_remove_interface,
3133 .config = iwl_mvm_mac_config,
e59647ea 3134 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3135 .configure_filter = iwl_mvm_configure_filter,
3136 .bss_info_changed = iwl_mvm_bss_info_changed,
3137 .hw_scan = iwl_mvm_mac_hw_scan,
3138 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3139 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3140 .sta_state = iwl_mvm_mac_sta_state,
3141 .sta_notify = iwl_mvm_mac_sta_notify,
3142 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3143 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3144 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3145 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3146 .conf_tx = iwl_mvm_mac_conf_tx,
3147 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3148 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3149 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3150 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3151 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3152 .set_key = iwl_mvm_mac_set_key,
3153 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3154 .remain_on_channel = iwl_mvm_roc,
3155 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3156 .add_chanctx = iwl_mvm_add_chanctx,
3157 .remove_chanctx = iwl_mvm_remove_chanctx,
3158 .change_chanctx = iwl_mvm_change_chanctx,
3159 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3160 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3161 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3162
5023d966
JB		 3163 .start_ap = iwl_mvm_start_ap_ibss,
3164 .stop_ap = iwl_mvm_stop_ap_ibss,
3165 .join_ibss = iwl_mvm_start_ap_ibss,
3166 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3167
3168 .set_tim = iwl_mvm_set_tim,
3169
bd3398e2
AO		 3170 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3171
507cadf2
DS		 3172 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3173
8ca151b5
JB		 3174#ifdef CONFIG_PM_SLEEP
3175 /* look at d3.c */
3176 .suspend = iwl_mvm_suspend,
3177 .resume = iwl_mvm_resume,
3178 .set_wakeup = iwl_mvm_set_wakeup,
3179 .set_rekey_data = iwl_mvm_set_rekey_data,
3180#if IS_ENABLED(CONFIG_IPV6)
3181 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3182#endif
3183 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3184#endif
3185};
Linux kernel - Deliverables
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