]> git.ipfire.org Git - thirdparty/linux.git/blame - drivers/net/wireless/iwlwifi/mvm/mac80211.c
projects / thirdparty / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: mvm: block TID when using TDLS
[thirdparty/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 346 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
effd05ac 347 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
fb98be5e 348 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
effd05ac
JB		 349 hw->wiphy->features |=
350 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
351 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
352 }
fb98be5e 353
8ca151b5
JB		 354 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
355 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 356 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 357
358 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 359 BIT(NL80211_IFTYPE_P2P_CLIENT) |
360 BIT(NL80211_IFTYPE_AP) |
361 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 362 BIT(NL80211_IFTYPE_P2P_DEVICE) |
363 BIT(NL80211_IFTYPE_ADHOC);
5023d966 364
a2f73b6c
LR		 365 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
366 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
367 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 368
3e56eadf
JB		 369 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
370 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
371
bd3398e2
AO		 372 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
373 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
374
8ca151b5
JB		 375 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
376 hw->wiphy->n_iface_combinations =
377 ARRAY_SIZE(iwl_mvm_iface_combinations);
378
c451e6d4 379 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 380 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
381
382 /* Extract MAC address */
383 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
384 hw->wiphy->addresses = mvm->addresses;
385 hw->wiphy->n_addresses = 1;
831e85f3
IP		 386
387 /* Extract additional MAC addresses if available */
388 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
389 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
390
391 for (i = 1; i < num_mac; i++) {
392 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 393 ETH_ALEN);
831e85f3 394 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 395 hw->wiphy->n_addresses++;
396 }
397
fe0f2de3
IP		 398 iwl_mvm_reset_phy_ctxts(mvm);
399
48849a41 400 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 401
8ca151b5
JB		 402 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
403
404 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
405 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
406 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
407 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
408 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
409 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
410
411 hw->wiphy->hw_version = mvm->trans->hw_id;
412
ade50652 413 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 414 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
415 else
416 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
417
6efaaf33
EG		 418 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
419 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
420 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
421 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
422 /* we create the 802.11 header and zero length SSID IE. */
423 hw->wiphy->max_sched_scan_ie_len =
424 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
425 }
35a000b7 426
8ca151b5 427 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 428 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 429 NL80211_FEATURE_P2P_GO_OPPPS |
430 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 431 NL80211_FEATURE_STATIC_SMPS |
432 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 433
f1daa00e
AO		 434 if (mvm->fw->ucode_capa.capa[0] &
435 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
436 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 437 if (mvm->fw->ucode_capa.capa[0] &
438 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
439 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 440
73897bd1
AO		 441 if (mvm->fw->ucode_capa.capa[0] &
442 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
443 hw->wiphy->features |=
444 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
445
446 if (mvm->fw->ucode_capa.capa[0] &
447 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
448 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
449
8ca151b5
JB		 450 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
451
e36e5433 452 /* currently FW API supports only one optional cipher scheme */
9ddca860 453 if (mvm->fw->cs[0].cipher) {
e36e5433 454 mvm->hw->n_cipher_schemes = 1;
9ddca860 455 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 456 }
457
8ca151b5 458#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 459 if (iwl_mvm_is_d0i3_supported(mvm) &&
460 device_can_wakeup(mvm->trans->dev)) {
461 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
462 hw->wiphy->wowlan = &mvm->wowlan;
463 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 464 mvm->trans->ops->d3_suspend &&
465 mvm->trans->ops->d3_resume &&
466 device_can_wakeup(mvm->trans->dev)) {
964dc9e2
JB		 467 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
468 WIPHY_WOWLAN_DISCONNECT |
469 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
470 WIPHY_WOWLAN_RFKILL_RELEASE;
8ca151b5 471 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 472 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
473 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
474 WIPHY_WOWLAN_4WAY_HANDSHAKE;
475
476 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
477 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
478 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
479 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
480 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 481 }
482#endif
483
77736923
EP		 484#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
485 /* assign default bcast filtering configuration */
486 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
487#endif
488
8ca151b5
JB		 489 ret = iwl_mvm_leds_init(mvm);
490 if (ret)
491 return ret;
492
d8f1c515
AN		 493 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
494 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
495 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
496 }
497
b7327d89
EG		 498 ret = ieee80211_register_hw(mvm->hw);
499 if (ret)
500 iwl_mvm_leds_exit(mvm);
501
502 return ret;
8ca151b5
JB		 503}
504
b2492501
AN		 505static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
506 struct ieee80211_sta *sta,
507 struct sk_buff *skb)
508{
509 struct iwl_mvm_sta *mvmsta;
510 bool defer = false;
511
512 /*
513 * double check the IN_D0I3 flag both before and after
514 * taking the spinlock, in order to prevent taking
515 * the spinlock when not needed.
516 */
517 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
518 return false;
519
520 spin_lock(&mvm->d0i3_tx_lock);
521 /*
522 * testing the flag again ensures the skb dequeue
523 * loop (on d0i3 exit) hasn't run yet.
524 */
525 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
526 goto out;
527
528 mvmsta = iwl_mvm_sta_from_mac80211(sta);
529 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
530 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
531 goto out;
532
533 __skb_queue_tail(&mvm->d0i3_tx, skb);
534 ieee80211_stop_queues(mvm->hw);
535
536 /* trigger wakeup */
537 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
538 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
539
540 defer = true;
541out:
542 spin_unlock(&mvm->d0i3_tx_lock);
543 return defer;
544}
545
8ca151b5
JB		 546static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
547 struct ieee80211_tx_control *control,
548 struct sk_buff *skb)
549{
550 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 551 struct ieee80211_sta *sta = control->sta;
552 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
553 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 554
9ee718aa
EL		 555 if (iwl_mvm_is_radio_killed(mvm)) {
556 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 557 goto drop;
558 }
559
398e8c6c 560 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 561 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
562 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 563 goto drop;
564
3e56eadf
JB		 565 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
566 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
567 ieee80211_is_mgmt(hdr->frame_control) &&
568 !ieee80211_is_deauth(hdr->frame_control) &&
569 !ieee80211_is_disassoc(hdr->frame_control) &&
570 !ieee80211_is_action(hdr->frame_control)))
571 sta = NULL;
572
573 if (sta) {
b2492501
AN		 574 if (iwl_mvm_defer_tx(mvm, sta, skb))
575 return;
3e56eadf 576 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 577 goto drop;
578 return;
579 }
580
581 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
582 goto drop;
583 return;
584 drop:
585 ieee80211_free_txskb(hw, skb);
586}
587
205e2210
EG		 588static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
589{
590 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
591 return false;
592 return true;
593}
594
595static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
596{
597 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
598 return false;
599 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
600 return true;
601
602 /* enabled by default */
603 return true;
604}
605
8ca151b5
JB		 606static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
607 struct ieee80211_vif *vif,
608 enum ieee80211_ampdu_mlme_action action,
609 struct ieee80211_sta *sta, u16 tid,
610 u16 *ssn, u8 buf_size)
611{
612 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
613 int ret;
b2492501 614 bool tx_agg_ref = false;
8ca151b5
JB		 615
616 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
617 sta->addr, tid, action);
618
619 if (!(mvm->nvm_data->sku_cap_11n_enable))
620 return -EACCES;
621
b2492501 622 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 623 switch (action) {
624 case IEEE80211_AMPDU_TX_START:
625 case IEEE80211_AMPDU_TX_STOP_CONT:
626 case IEEE80211_AMPDU_TX_STOP_FLUSH:
627 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
628 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 629 /*
9256c205
EP		 630 * for tx start, wait synchronously until D0i3 exit to
631 * get the correct sequence number for the tid.
632 * additionally, some other ampdu actions use direct
633 * target access, which is not handled automatically
634 * by the trans layer (unlike commands), so wait for
635 * d0i3 exit in these cases as well.
b2492501 636 */
d40fc489
GG		 637 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
638 if (ret)
639 return ret;
640
641 tx_agg_ref = true;
9256c205
EP		 642 break;
643 default:
644 break;
b2492501
AN		 645 }
646
8ca151b5
JB		 647 mutex_lock(&mvm->mutex);
648
649 switch (action) {
650 case IEEE80211_AMPDU_RX_START:
205e2210 651 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 652 ret = -EINVAL;
653 break;
654 }
655 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
656 break;
657 case IEEE80211_AMPDU_RX_STOP:
658 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
659 break;
660 case IEEE80211_AMPDU_TX_START:
205e2210 661 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 662 ret = -EINVAL;
663 break;
664 }
8ca151b5
JB		 665 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
666 break;
667 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 668 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
669 break;
8ca151b5
JB		 670 case IEEE80211_AMPDU_TX_STOP_FLUSH:
671 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 672 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 673 break;
674 case IEEE80211_AMPDU_TX_OPERATIONAL:
675 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
676 break;
677 default:
678 WARN_ON_ONCE(1);
679 ret = -EINVAL;
680 break;
681 }
682 mutex_unlock(&mvm->mutex);
683
b2492501
AN		 684 /*
685 * If the tid is marked as started, we won't use it for offloaded
686 * traffic on the next D0i3 entry. It's safe to unref.
687 */
688 if (tx_agg_ref)
689 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
690
8ca151b5
JB		 691 return ret;
692}
693
694static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
695 struct ieee80211_vif *vif)
696{
697 struct iwl_mvm *mvm = data;
698 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
699
700 mvmvif->uploaded = false;
701 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
702
703 /* does this make sense at all? */
704 mvmvif->color++;
705
706 spin_lock_bh(&mvm->time_event_lock);
707 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
708 spin_unlock_bh(&mvm->time_event_lock);
709
fe0f2de3 710 mvmvif->phy_ctxt = NULL;
8a275bad 711 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 712}
713
aadede6e
JB		 714static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
715 const void *data, size_t datalen)
716{
717 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
718 ssize_t bytes_read;
719 ssize_t bytes_read_trans;
720
721 if (offset < dump_ptrs->op_mode_len) {
722 bytes_read = min_t(ssize_t, count,
723 dump_ptrs->op_mode_len - offset);
724 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
725 bytes_read);
726 offset += bytes_read;
727 count -= bytes_read;
728
729 if (count == 0)
730 return bytes_read;
731 } else {
732 bytes_read = 0;
733 }
734
735 if (!dump_ptrs->trans_ptr)
736 return bytes_read;
737
738 offset -= dump_ptrs->op_mode_len;
739 bytes_read_trans = min_t(ssize_t, count,
740 dump_ptrs->trans_ptr->len - offset);
741 memcpy(buffer + bytes_read,
742 (u8 *)dump_ptrs->trans_ptr->data + offset,
743 bytes_read_trans);
744
745 return bytes_read + bytes_read_trans;
746}
747
748static void iwl_mvm_free_coredump(const void *data)
749{
750 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
751
752 vfree(fw_error_dump->op_mode_ptr);
753 vfree(fw_error_dump->trans_ptr);
754 kfree(fw_error_dump);
755}
756
4bfa47f3 757void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 758{
759 struct iwl_fw_error_dump_file *dump_file;
760 struct iwl_fw_error_dump_data *dump_data;
761 struct iwl_fw_error_dump_info *dump_info;
48eb7b34 762 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d
EG		 763 const struct fw_img *img;
764 u32 sram_len, sram_ofs;
765 u32 file_len, rxf_len;
766 unsigned long flags;
655e6d6d
EG		 767 int reg_val;
768
769 lockdep_assert_held(&mvm->mutex);
770
aadede6e 771 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 772 if (!fw_error_dump)
773 return;
774
655e6d6d
EG		 775 img = &mvm->fw->img[mvm->cur_ucode];
776 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
777 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
778
779 /* reading buffer size */
780 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
781 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
782
783 /* the register holds the value divided by 128 */
784 rxf_len = rxf_len << 7;
785
786 file_len = sizeof(*dump_file) +
787 sizeof(*dump_data) * 3 +
788 sram_len +
789 rxf_len +
790 sizeof(*dump_info);
791
5bfe6f53 792 dump_file = vzalloc(file_len);
48eb7b34
EG		 793 if (!dump_file) {
794 kfree(fw_error_dump);
655e6d6d 795 return;
48eb7b34 796 }
655e6d6d 797
48eb7b34 798 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 799
800 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 801 dump_data = (void *)dump_file->data;
802
803 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
804 dump_data->len = cpu_to_le32(sizeof(*dump_info));
805 dump_info = (void *) dump_data->data;
806 dump_info->device_family =
807 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
808 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
809 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
810 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
811 sizeof(dump_info->fw_human_readable));
812 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
813 sizeof(dump_info->dev_human_readable));
814 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
815 sizeof(dump_info->bus_human_readable));
816
817 dump_data = iwl_fw_error_next_data(dump_data);
818 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
819 dump_data->len = cpu_to_le32(rxf_len);
820
821 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
822 u32 *rxf = (void *)dump_data->data;
823 int i;
824
825 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
826 iwl_trans_write_prph(mvm->trans,
827 RXF_LD_FENCE_OFFSET_ADDR,
828 i * sizeof(u32));
829 rxf[i] = iwl_trans_read_prph(mvm->trans,
830 RXF_FIFO_RD_FENCE_ADDR);
831 }
832 iwl_trans_release_nic_access(mvm->trans, &flags);
833 }
834
835 dump_data = iwl_fw_error_next_data(dump_data);
836 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
837 dump_data->len = cpu_to_le32(sram_len);
838 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
839 sram_len);
840
48eb7b34
EG		 841 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
842 fw_error_dump->op_mode_len = file_len;
843 if (fw_error_dump->trans_ptr)
844 file_len += fw_error_dump->trans_ptr->len;
845 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 846
aadede6e
JB		 847 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
848 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
655e6d6d 849}
655e6d6d 850
8ca151b5
JB		 851static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
852{
58629d9d
JB		 853 /* clear the D3 reconfig, we only need it to avoid dumping a
854 * firmware coredump on reconfiguration, we shouldn't do that
855 * on D3->D0 transition
856 */
857 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
858 iwl_mvm_fw_error_dump(mvm);
1bd3cbc1 859
8ca151b5 860 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 861
862 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 863 mvm->ps_disabled = false;
31b8b343 864 mvm->calibrating = false;
8ca151b5
JB		 865
866 /* just in case one was running */
867 ieee80211_remain_on_channel_expired(mvm->hw);
868
869 ieee80211_iterate_active_interfaces_atomic(
870 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
871 iwl_mvm_cleanup_iterator, mvm);
872
fe0f2de3 873 mvm->p2p_device_vif = NULL;
37577fe2 874 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 875
876 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 877 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
878 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 879 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 880 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
881 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
882 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
883 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
884 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
885 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 886
887 ieee80211_wake_queues(mvm->hw);
888
7498cf4c
EP		 889 /* cleanup all stale references (scan, roc), but keep the
890 * ucode_down ref until reconfig is complete */
891 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
892
228670b2
EP		 893 /* clear any stale d0i3 state */
894 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
895
8ca151b5 896 mvm->vif_count = 0;
113a0447 897 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 898}
899
a0a09243 900int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 901{
8ca151b5
JB		 902 int ret;
903
a0a09243 904 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 905
906 /* Clean up some internal and mac80211 state on restart */
907 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
908 iwl_mvm_restart_cleanup(mvm);
909
910 ret = iwl_mvm_up(mvm);
c47af22a
JB		 911
912 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
913 /* Something went wrong - we need to finish some cleanup
914 * that normally iwl_mvm_mac_restart_complete() below
915 * would do.
916 */
917 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
918 iwl_mvm_d0i3_enable_tx(mvm, NULL);
919 }
920
a0a09243
LC		 921 return ret;
922}
923
924static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
925{
926 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
927 int ret;
928
929 mutex_lock(&mvm->mutex);
930 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 931 mutex_unlock(&mvm->mutex);
932
933 return ret;
934}
935
cf2c92d8 936static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 937{
8ca151b5
JB		 938 int ret;
939
940 mutex_lock(&mvm->mutex);
941
942 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 943 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 944 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 945 if (ret)
946 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
947 ret);
948
7498cf4c
EP		 949 /* allow transport/FW low power modes */
950 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
951
cbd2ae2d
AN		 952 /*
953 * If we have TDLS peers, remove them. We don't know the last seqno/PN
954 * of packets the FW sent out, so we must reconnect.
955 */
956 iwl_mvm_teardown_tdls_peers(mvm);
957
8ca151b5
JB		 958 mutex_unlock(&mvm->mutex);
959}
960
088070a2
EP		 961static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
962{
963 bool exit_now;
964
965 if (!iwl_mvm_is_d0i3_supported(mvm))
966 return;
967
968 mutex_lock(&mvm->d0i3_suspend_mutex);
969 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
970 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
971 &mvm->d0i3_suspend_flags);
972 mutex_unlock(&mvm->d0i3_suspend_mutex);
973
974 if (exit_now) {
975 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
976 _iwl_mvm_exit_d0i3(mvm);
977 }
978}
979
cf2c92d8
EP		 980static void
981iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
982 enum ieee80211_reconfig_type reconfig_type)
983{
984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
985
986 switch (reconfig_type) {
987 case IEEE80211_RECONFIG_TYPE_RESTART:
988 iwl_mvm_restart_complete(mvm);
989 break;
990 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 991 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 992 break;
993 }
994}
995
a0a09243 996void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 997{
a0a09243 998 lockdep_assert_held(&mvm->mutex);
7498cf4c
EP		 999
1000 /* disallow low power states when the FW is down */
1001 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
1002
8ca151b5
JB		 1003 /* async_handlers_wk is now blocked */
1004
1005 /*
1006 * The work item could be running or queued if the
1007 * ROC time event stops just as we get here.
1008 */
1009 cancel_work_sync(&mvm->roc_done_wk);
1010
1011 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1012
1013 iwl_mvm_async_handlers_purge(mvm);
1014 /* async_handlers_list is empty and will stay empty: HW is stopped */
1015
1016 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1017 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1018
bc44886d 1019 mvm->ucode_loaded = false;
a0a09243 1020}
bc44886d 1021
a0a09243
LC		 1022static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1023{
1024 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1025
1026 flush_work(&mvm->d0i3_exit_work);
1027 flush_work(&mvm->async_handlers_wk);
4bfa47f3 1028 flush_work(&mvm->fw_error_dump_wk);
a0a09243
LC		 1029
1030 mutex_lock(&mvm->mutex);
1031 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1032 mutex_unlock(&mvm->mutex);
1033
1034 /*
1035 * The worker might have been waiting for the mutex, let it run and
1036 * discover that its list is now empty.
1037 */
1038 cancel_work_sync(&mvm->async_handlers_wk);
1039}
1040
fe0f2de3
IP		 1041static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1042{
1043 u16 i;
1044
1045 lockdep_assert_held(&mvm->mutex);
1046
1047 for (i = 0; i < NUM_PHY_CTX; i++)
1048 if (!mvm->phy_ctxts[i].ref)
1049 return &mvm->phy_ctxts[i];
1050
1051 IWL_ERR(mvm, "No available PHY context\n");
1052 return NULL;
1053}
1054
ee9c6cb0
EG		 1055static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1056 s8 tx_power)
1057{
1058 /* FW is in charge of regulatory enforcement */
1059 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1060 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1061 .pwr_restriction = cpu_to_le16(tx_power),
1062 };
1063
a1022927 1064 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1065 sizeof(reduce_txpwr_cmd),
1066 &reduce_txpwr_cmd);
1067}
1068
8ca151b5
JB		 1069static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1070 struct ieee80211_vif *vif)
1071{
1072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1073 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1074 int ret;
1075
d40fc489
GG		 1076 /*
1077 * make sure D0i3 exit is completed, otherwise a target access
1078 * during tx queue configuration could be done when still in
1079 * D0i3 state.
1080 */
1081 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1082 if (ret)
1083 return ret;
1084
8ca151b5
JB		 1085 /*
1086 * Not much to do here. The stack will not allow interface
1087 * types or combinations that we didn't advertise, so we
1088 * don't really have to check the types.
1089 */
1090
1091 mutex_lock(&mvm->mutex);
1092
e89044d7 1093 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1094 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1095 if (ret)
1096 goto out_unlock;
1097
1c2abf72 1098 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1099 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1100 mvm->vif_count++;
ea183d02 1101
8ca151b5
JB		 1102 /*
1103 * The AP binding flow can be done only after the beacon
1104 * template is configured (which happens only in the mac80211
1105 * start_ap() flow), and adding the broadcast station can happen
1106 * only after the binding.
1107 * In addition, since modifying the MAC before adding a bcast
1108 * station is not allowed by the FW, delay the adding of MAC context to
1109 * the point where we can also add the bcast station.
1110 * In short: there's not much we can do at this point, other than
1111 * allocating resources :)
1112 */
5023d966
JB		 1113 if (vif->type == NL80211_IFTYPE_AP ||
1114 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1115 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1116 if (ret) {
1117 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1118 goto out_release;
1119 }
1120
77740cb4 1121 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1122 goto out_unlock;
1123 }
1124
8ca151b5
JB		 1125 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1126 if (ret)
1127 goto out_release;
1128
999609f1 1129 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e
EG		 1130 if (ret)
1131 goto out_release;
8ca151b5 1132
7df15b1e 1133 /* beacon filtering */
a1022927 1134 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1135 if (ret)
1136 goto out_remove_mac;
1137
7df15b1e 1138 if (!mvm->bf_allowed_vif &&
73e5f2c5 1139 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1140 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1141 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1142 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1143 }
1144
8ca151b5
JB		 1145 /*
1146 * P2P_DEVICE interface does not have a channel context assigned to it,
1147 * so a dedicated PHY context is allocated to it and the corresponding
1148 * MAC context is bound to it at this stage.
1149 */
1150 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1151
fe0f2de3
IP		 1152 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1153 if (!mvmvif->phy_ctxt) {
1154 ret = -ENOSPC;
bd3351ba 1155 goto out_free_bf;
fe0f2de3 1156 }
8ca151b5 1157
53a9d61e 1158 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1159 ret = iwl_mvm_binding_add_vif(mvm, vif);
1160 if (ret)
53a9d61e 1161 goto out_unref_phy;
8ca151b5 1162
013290aa 1163 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1164 if (ret)
1165 goto out_unbind;
1166
1167 /* Save a pointer to p2p device vif, so it can later be used to
1168 * update the p2p device MAC when a GO is started/stopped */
1169 mvm->p2p_device_vif = vif;
1170 }
1171
63494374 1172 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1173 goto out_unlock;
1174
1175 out_unbind:
1176 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1177 out_unref_phy:
fe0f2de3 1178 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1179 out_free_bf:
1180 if (mvm->bf_allowed_vif == mvmvif) {
1181 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1182 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1183 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1184 }
8ca151b5
JB		 1185 out_remove_mac:
1186 mvmvif->phy_ctxt = NULL;
1187 iwl_mvm_mac_ctxt_remove(mvm, vif);
1188 out_release:
5ee2b215
AB		 1189 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1190 mvm->vif_count--;
1c2abf72 1191
8ca151b5
JB		 1192 iwl_mvm_mac_ctxt_release(mvm, vif);
1193 out_unlock:
1194 mutex_unlock(&mvm->mutex);
1195
d40fc489
GG		 1196 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1197
8ca151b5
JB		 1198 return ret;
1199}
1200
38a12b5b
JB		 1201static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1202 struct ieee80211_vif *vif)
8ca151b5 1203{
d92b732e 1204 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1205
1206 if (tfd_msk) {
1207 mutex_lock(&mvm->mutex);
1208 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1209 mutex_unlock(&mvm->mutex);
1210 }
1211
1212 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1213 /*
1214 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1215 * We assume here that all the packets sent to the OFFCHANNEL
1216 * queue are sent in ROC session.
1217 */
1218 flush_work(&mvm->roc_done_wk);
1219 } else {
1220 /*
1221 * By now, all the AC queues are empty. The AGG queues are
1222 * empty too. We already got all the Tx responses for all the
1223 * packets in the queues. The drain work can have been
0742a75a 1224 * triggered. Flush it.
8ca151b5
JB		 1225 */
1226 flush_work(&mvm->sta_drained_wk);
1227 }
38a12b5b
JB		 1228}
1229
1230static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1231 struct ieee80211_vif *vif)
1232{
1233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1234 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1235
1236 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1237
1238 mutex_lock(&mvm->mutex);
1239
7df15b1e
HG		 1240 if (mvm->bf_allowed_vif == mvmvif) {
1241 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1242 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1243 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1244 }
1245
63494374
JB		 1246 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1247
8ca151b5
JB		 1248 /*
1249 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1250 * interface is be handled as part of the stop_ap flow.
8ca151b5 1251 */
5023d966
JB		 1252 if (vif->type == NL80211_IFTYPE_AP ||
1253 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1254#ifdef CONFIG_NL80211_TESTMODE
1255 if (vif == mvm->noa_vif) {
1256 mvm->noa_vif = NULL;
1257 mvm->noa_duration = 0;
1258 }
1259#endif
013290aa 1260 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1261 goto out_release;
1262 }
1263
1264 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1265 mvm->p2p_device_vif = NULL;
013290aa 1266 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1267 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1268 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1269 mvmvif->phy_ctxt = NULL;
1270 }
1271
5ee2b215 1272 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1273 mvm->vif_count--;
1c2abf72 1274
999609f1 1275 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1276 iwl_mvm_mac_ctxt_remove(mvm, vif);
1277
1278out_release:
1279 iwl_mvm_mac_ctxt_release(mvm, vif);
1280 mutex_unlock(&mvm->mutex);
1281}
1282
1283static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1284{
8ca151b5
JB		 1285 return 0;
1286}
1287
e59647ea
EP		 1288struct iwl_mvm_mc_iter_data {
1289 struct iwl_mvm *mvm;
1290 int port_id;
1291};
1292
1293static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1294 struct ieee80211_vif *vif)
1295{
1296 struct iwl_mvm_mc_iter_data *data = _data;
1297 struct iwl_mvm *mvm = data->mvm;
1298 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1299 int ret, len;
1300
1301 /* if we don't have free ports, mcast frames will be dropped */
1302 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1303 return;
1304
1305 if (vif->type != NL80211_IFTYPE_STATION ||
1306 !vif->bss_conf.assoc)
1307 return;
1308
1309 cmd->port_id = data->port_id++;
1310 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1311 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1312
1c4abec0 1313 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1314 if (ret)
1315 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1316}
1317
1318static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1319{
1320 struct iwl_mvm_mc_iter_data iter_data = {
1321 .mvm = mvm,
88f2fd73
MG		 1322 };
1323
e59647ea
EP		 1324 lockdep_assert_held(&mvm->mutex);
1325
1326 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1327 return;
1328
1c4abec0 1329 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1330 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1331 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1332}
1333
e59647ea
EP		 1334static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1335 struct netdev_hw_addr_list *mc_list)
8ca151b5 1336{
e59647ea
EP		 1337 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1338 struct iwl_mcast_filter_cmd *cmd;
1339 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1340 int addr_count;
1341 bool pass_all;
e59647ea
EP		 1342 int len;
1343
f3bd58f4
MS		 1344 addr_count = netdev_hw_addr_list_count(mc_list);
1345 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1346 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1347 if (pass_all)
e59647ea 1348 addr_count = 0;
e59647ea
EP		 1349
1350 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1351 cmd = kzalloc(len, GFP_ATOMIC);
1352 if (!cmd)
1353 return 0;
1354
1355 if (pass_all) {
1356 cmd->pass_all = 1;
1357 return (u64)(unsigned long)cmd;
1358 }
1359
1360 netdev_hw_addr_list_for_each(addr, mc_list) {
1361 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1362 cmd->count, addr->addr);
1363 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1364 addr->addr, ETH_ALEN);
1365 cmd->count++;
1366 }
1367
1368 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1369}
1370
1371static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1372 unsigned int changed_flags,
1373 unsigned int *total_flags,
1374 u64 multicast)
1375{
e59647ea
EP		 1376 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1377 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1378
e59647ea 1379 mutex_lock(&mvm->mutex);
51b6b9e0 1380
e59647ea
EP		 1381 /* replace previous configuration */
1382 kfree(mvm->mcast_filter_cmd);
1383 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1384
e59647ea
EP		 1385 if (!cmd)
1386 goto out;
51b6b9e0 1387
e59647ea
EP		 1388 iwl_mvm_recalc_multicast(mvm);
1389out:
1390 mutex_unlock(&mvm->mutex);
1391 *total_flags = 0;
51b6b9e0
EG		 1392}
1393
c87163b9
EP		 1394#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1395struct iwl_bcast_iter_data {
1396 struct iwl_mvm *mvm;
1397 struct iwl_bcast_filter_cmd *cmd;
1398 u8 current_filter;
1399};
1400
1401static void
1402iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1403 const struct iwl_fw_bcast_filter *in_filter,
1404 struct iwl_fw_bcast_filter *out_filter)
1405{
1406 struct iwl_fw_bcast_filter_attr *attr;
1407 int i;
1408
1409 memcpy(out_filter, in_filter, sizeof(*out_filter));
1410
1411 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1412 attr = &out_filter->attrs[i];
1413
1414 if (!attr->mask)
1415 break;
1416
2ee8f021
EP		 1417 switch (attr->reserved1) {
1418 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1419 if (vif->bss_conf.arp_addr_cnt != 1) {
1420 attr->mask = 0;
1421 continue;
1422 }
1423
1424 attr->val = vif->bss_conf.arp_addr_list[0];
1425 break;
1426 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1427 attr->val = *(__be32 *)&vif->addr[2];
1428 break;
1429 default:
1430 break;
1431 }
1432 attr->reserved1 = 0;
c87163b9
EP		 1433 out_filter->num_attrs++;
1434 }
1435}
1436
1437static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1438 struct ieee80211_vif *vif)
1439{
1440 struct iwl_bcast_iter_data *data = _data;
1441 struct iwl_mvm *mvm = data->mvm;
1442 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1443 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1444 struct iwl_fw_bcast_mac *bcast_mac;
1445 int i;
1446
1447 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1448 return;
1449
1450 bcast_mac = &cmd->macs[mvmvif->id];
1451
e48393e8
IP		 1452 /*
1453 * enable filtering only for associated stations, but not for P2P
1454 * Clients
1455 */
1456 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1457 !vif->bss_conf.assoc)
c87163b9
EP		 1458 return;
1459
1460 bcast_mac->default_discard = 1;
1461
1462 /* copy all configured filters */
1463 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1464 /*
1465 * Make sure we don't exceed our filters limit.
1466 * if there is still a valid filter to be configured,
1467 * be on the safe side and just allow bcast for this mac.
1468 */
1469 if (WARN_ON_ONCE(data->current_filter >=
1470 ARRAY_SIZE(cmd->filters))) {
1471 bcast_mac->default_discard = 0;
1472 bcast_mac->attached_filters = 0;
1473 break;
1474 }
1475
1476 iwl_mvm_set_bcast_filter(vif,
1477 &mvm->bcast_filters[i],
1478 &cmd->filters[data->current_filter]);
1479
1480 /* skip current filter if it contains no attributes */
1481 if (!cmd->filters[data->current_filter].num_attrs)
1482 continue;
1483
1484 /* attach the filter to current mac */
1485 bcast_mac->attached_filters |=
1486 cpu_to_le16(BIT(data->current_filter));
1487
1488 data->current_filter++;
1489 }
1490}
1491
de06a59e
EP		 1492bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1493 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1494{
c87163b9
EP		 1495 struct iwl_bcast_iter_data iter_data = {
1496 .mvm = mvm,
de06a59e 1497 .cmd = cmd,
c87163b9
EP		 1498 };
1499
3b8983b1
MS		 1500 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1501 return false;
1502
de06a59e
EP		 1503 memset(cmd, 0, sizeof(*cmd));
1504 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1505 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1506
1507#ifdef CONFIG_IWLWIFI_DEBUGFS
1508 /* use debugfs filters/macs if override is configured */
1509 if (mvm->dbgfs_bcast_filtering.override) {
1510 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1511 sizeof(cmd->filters));
1512 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1513 sizeof(cmd->macs));
1514 return true;
1515 }
1516#endif
c87163b9
EP		 1517
1518 /* if no filters are configured, do nothing */
1519 if (!mvm->bcast_filters)
de06a59e 1520 return false;
c87163b9
EP		 1521
1522 /* configure and attach these filters for each associated sta vif */
1523 ieee80211_iterate_active_interfaces(
1524 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1525 iwl_mvm_bcast_filter_iterator, &iter_data);
1526
de06a59e
EP		 1527 return true;
1528}
1529static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1530 struct ieee80211_vif *vif)
1531{
1532 struct iwl_bcast_filter_cmd cmd;
1533
1534 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1535 return 0;
1536
1537 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1538 return 0;
1539
a1022927 1540 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1541 sizeof(cmd), &cmd);
1542}
1543#else
1544static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1545 struct ieee80211_vif *vif)
1546{
1547 return 0;
1548}
1549#endif
1550
8ca151b5
JB		 1551static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1552 struct ieee80211_vif *vif,
1553 struct ieee80211_bss_conf *bss_conf,
1554 u32 changes)
1555{
1556 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1557 int ret;
1558
6e97b0d2
IP		 1559 /*
1560 * Re-calculate the tsf id, as the master-slave relations depend on the
1561 * beacon interval, which was not known when the station interface was
1562 * added.
1563 */
1564 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1565 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1566
3dfd3a97
JB		 1567 /*
1568 * If we're not associated yet, take the (new) BSSID before associating
1569 * so the firmware knows. If we're already associated, then use the old
1570 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1571 * branch for disassociation below.
1572 */
1573 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1574 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1575
1576 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1577 if (ret)
1578 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1579
3dfd3a97
JB		 1580 /* after sending it once, adopt mac80211 data */
1581 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1582 mvmvif->associated = bss_conf->assoc;
1583
8ca151b5
JB		 1584 if (changes & BSS_CHANGED_ASSOC) {
1585 if (bss_conf->assoc) {
1586 /* add quota for this interface */
0166230c 1587 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1588 if (ret) {
1589 IWL_ERR(mvm, "failed to update quotas\n");
1590 return;
1591 }
016d27e1
JB		 1592
1593 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1594 &mvm->status)) {
1595 /*
1596 * If we're restarting then the firmware will
1597 * obviously have lost synchronisation with
1598 * the AP. It will attempt to synchronise by
1599 * itself, but we can make it more reliable by
1600 * scheduling a session protection time event.
1601 *
1602 * The firmware needs to receive a beacon to
1603 * catch up with synchronisation, use 110% of
1604 * the beacon interval.
1605 *
1606 * Set a large maximum delay to allow for more
1607 * than a single interface.
1608 */
1609 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1610 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1611 5 * dur, false);
016d27e1 1612 }
1f3b0ff8
LE		 1613
1614 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1615 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1616 if (vif->p2p) {
29a90a49 1617 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1618 iwl_mvm_update_smps(mvm, vif,
1619 IWL_MVM_SMPS_REQ_PROT,
1620 IEEE80211_SMPS_DYNAMIC);
1621 }
8ca151b5 1622 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1623 /*
1624 * If update fails - SF might be running in associated
1625 * mode while disassociated - which is forbidden.
1626 */
1627 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1628 "Failed to update SF upon disassociation\n");
1629
8ca151b5
JB		 1630 /* remove AP station now that the MAC is unassoc */
1631 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1632 if (ret)
1633 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1634
1635 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1636 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1637 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1638 /* remove quota for this interface */
0166230c 1639 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1640 if (ret)
1641 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1642
1643 if (vif->p2p)
1644 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1645
1646 /* this will take the cleared BSSID from bss_conf */
1647 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1648 if (ret)
1649 IWL_ERR(mvm,
1650 "failed to update MAC %pM (clear after unassoc)\n",
1651 vif->addr);
8ca151b5 1652 }
a20fd398 1653
e59647ea 1654 iwl_mvm_recalc_multicast(mvm);
c87163b9 1655 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1656
a20fd398
AO		 1657 /* reset rssi values */
1658 mvmvif->bf_data.ave_beacon_signal = 0;
1659
8e484f0b 1660 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1661 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1662 IEEE80211_SMPS_AUTOMATIC);
989c6505 1663 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1664 /*
1665 * We received a beacon _after_ association so
1666 * remove the session protection.
1667 */
1668 iwl_mvm_remove_time_event(mvm, mvmvif,
1669 &mvmvif->time_event_data);
8ca151b5 1670 }
cc87d322
EH		 1671
1672 if (changes & BSS_CHANGED_BEACON_INFO) {
1673 iwl_mvm_sf_update(mvm, vif, false);
1674 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1675 }
1676
1bc10d3b
JB		 1677 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1678 ret = iwl_mvm_power_update_mac(mvm);
1679 if (ret)
1680 IWL_ERR(mvm, "failed to update power mode\n");
1681 }
1682
88f2fd73
MG		 1683 if (changes & BSS_CHANGED_TXPOWER) {
1684 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1685 bss_conf->txpower);
1686 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1687 }
a20fd398
AO		 1688
1689 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1690 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1691 /* reset cqm events tracking */
1692 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1693 if (mvmvif->bf_data.bf_enabled) {
1694 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1695 if (ret)
1696 IWL_ERR(mvm,
1697 "failed to update CQM thresholds\n");
1698 }
a20fd398 1699 }
2ee8f021
EP		 1700
1701 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1702 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1703 iwl_mvm_configure_bcast_filter(mvm, vif);
1704 }
8ca151b5
JB		 1705}
1706
5023d966
JB		 1707static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1708 struct ieee80211_vif *vif)
8ca151b5
JB		 1709{
1710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1712 int ret;
1713
576eeee9
EP		 1714 /*
1715 * iwl_mvm_mac_ctxt_add() might read directly from the device
1716 * (the system time), so make sure it is available.
1717 */
1718 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1719 if (ret)
1720 return ret;
1721
8ca151b5
JB		 1722 mutex_lock(&mvm->mutex);
1723
1724 /* Send the beacon template */
1725 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1726 if (ret)
1727 goto out_unlock;
1728
6e97b0d2
IP		 1729 /*
1730 * Re-calculate the tsf id, as the master-slave relations depend on the
1731 * beacon interval, which was not known when the AP interface was added.
1732 */
1733 if (vif->type == NL80211_IFTYPE_AP)
1734 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1735
8ca151b5
JB		 1736 /* Add the mac context */
1737 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1738 if (ret)
1739 goto out_unlock;
1740
1741 /* Perform the binding */
1742 ret = iwl_mvm_binding_add_vif(mvm, vif);
1743 if (ret)
1744 goto out_remove;
1745
8ca151b5
JB		 1746 /* Send the bcast station. At this stage the TBTT and DTIM time events
1747 * are added and applied to the scheduler */
013290aa 1748 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1749 if (ret)
1750 goto out_unbind;
1751
5691e218
IP		 1752 /* must be set before quota calculations */
1753 mvmvif->ap_ibss_active = true;
1754
a11e144e 1755 /* power updated needs to be done before quotas */
999609f1 1756 iwl_mvm_power_update_mac(mvm);
a11e144e 1757
0166230c 1758 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 1759 if (ret)
a11e144e 1760 goto out_quota_failed;
8ca151b5 1761
5023d966 1762 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1763 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1764 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1765
29a90a49
EP		 1766 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1767
8e484f0b 1768 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1769
f697267f
AN		 1770 /* we don't support TDLS during DCM */
1771 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1772 iwl_mvm_teardown_tdls_peers(mvm);
1773
8ca151b5
JB		 1774 mutex_unlock(&mvm->mutex);
1775 return 0;
1776
a11e144e 1777out_quota_failed:
999609f1 1778 iwl_mvm_power_update_mac(mvm);
5691e218 1779 mvmvif->ap_ibss_active = false;
013290aa 1780 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 1781out_unbind:
1782 iwl_mvm_binding_remove_vif(mvm, vif);
1783out_remove:
1784 iwl_mvm_mac_ctxt_remove(mvm, vif);
1785out_unlock:
1786 mutex_unlock(&mvm->mutex);
576eeee9 1787 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 1788 return ret;
1789}
1790
5023d966
JB		 1791static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1792 struct ieee80211_vif *vif)
8ca151b5
JB		 1793{
1794 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1795 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1796
38a12b5b
JB		 1797 iwl_mvm_prepare_mac_removal(mvm, vif);
1798
8ca151b5
JB		 1799 mutex_lock(&mvm->mutex);
1800
664322fa 1801 /* Handle AP stop while in CSA */
7f0a7c67
AO		 1802 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1803 iwl_mvm_remove_time_event(mvm, mvmvif,
1804 &mvmvif->time_event_data);
664322fa 1805 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 1806 }
664322fa 1807
003e5236
AO		 1808 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1809 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1810 mvm->csa_tx_block_bcn_timeout = 0;
1811 }
1812
5023d966 1813 mvmvif->ap_ibss_active = false;
1c87bbad 1814 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 1815
8e484f0b 1816 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1817
29a90a49
EP		 1818 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1819
5023d966 1820 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1821 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1822 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1823
0166230c 1824 iwl_mvm_update_quotas(mvm, NULL);
013290aa 1825 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 1826 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 1827
999609f1 1828 iwl_mvm_power_update_mac(mvm);
a11e144e 1829
8ca151b5
JB		 1830 iwl_mvm_mac_ctxt_remove(mvm, vif);
1831
1832 mutex_unlock(&mvm->mutex);
1833}
1834
5023d966
JB		 1835static void
1836iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1837 struct ieee80211_vif *vif,
1838 struct ieee80211_bss_conf *bss_conf,
1839 u32 changes)
8ca151b5 1840{
be2056fc 1841 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 1842
be2056fc
IP		 1843 /* Changes will be applied when the AP/IBSS is started */
1844 if (!mvmvif->ap_ibss_active)
1845 return;
1846
863230da 1847 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 1848 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 1849 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 1850 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 1851
8ca151b5 1852 /* Need to send a new beacon template to the FW */
863230da
JB		 1853 if (changes & BSS_CHANGED_BEACON &&
1854 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1855 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 1856
1857 if (changes & BSS_CHANGED_TXPOWER) {
1858 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1859 bss_conf->txpower);
1860 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1861 }
1862
8ca151b5
JB		 1863}
1864
1865static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1866 struct ieee80211_vif *vif,
1867 struct ieee80211_bss_conf *bss_conf,
1868 u32 changes)
1869{
1870 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1871
576eeee9
EP		 1872 /*
1873 * iwl_mvm_bss_info_changed_station() might call
1874 * iwl_mvm_protect_session(), which reads directly from
1875 * the device (the system time), so make sure it is available.
1876 */
1877 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1878 return;
1879
8ca151b5
JB		 1880 mutex_lock(&mvm->mutex);
1881
723f02ed 1882 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 1883 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 1884
8ca151b5
JB		 1885 switch (vif->type) {
1886 case NL80211_IFTYPE_STATION:
1887 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1888 break;
1889 case NL80211_IFTYPE_AP:
5023d966
JB		 1890 case NL80211_IFTYPE_ADHOC:
1891 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 1892 break;
1893 default:
1894 /* shouldn't happen */
1895 WARN_ON_ONCE(1);
1896 }
1897
1898 mutex_unlock(&mvm->mutex);
576eeee9 1899 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 1900}
1901
4660dfbb
EP		 1902static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1903 enum iwl_scan_status scan_type)
1904{
1905 int ret;
1906 bool wait_for_handlers = false;
1907
1908 mutex_lock(&mvm->mutex);
1909
1910 if (mvm->scan_status != scan_type) {
1911 ret = 0;
1912 /* make sure there are no pending notifications */
1913 wait_for_handlers = true;
1914 goto out;
1915 }
1916
1917 switch (scan_type) {
1918 case IWL_MVM_SCAN_SCHED:
1919 ret = iwl_mvm_scan_offload_stop(mvm, true);
1920 break;
1921 case IWL_MVM_SCAN_OS:
1922 ret = iwl_mvm_cancel_scan(mvm);
1923 break;
1924 case IWL_MVM_SCAN_NONE:
1925 default:
1926 WARN_ON_ONCE(1);
1927 ret = -EINVAL;
1928 break;
1929 }
1930 if (ret)
1931 goto out;
1932
1933 wait_for_handlers = true;
1934out:
1935 mutex_unlock(&mvm->mutex);
1936
1937 /* make sure we consume the completion notification */
1938 if (wait_for_handlers)
1939 iwl_mvm_wait_for_async_handlers(mvm);
1940
1941 return ret;
1942}
8ca151b5
JB		 1943static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1944 struct ieee80211_vif *vif,
c56ef672 1945 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 1946{
1947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 1948 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 1949 int ret;
1950
762533ba
DS		 1951 if (req->n_channels == 0 ||
1952 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 1953 return -EINVAL;
1954
d2496221
DS		 1955 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1956 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1957 if (ret)
1958 return ret;
1959 }
4660dfbb 1960
8ca151b5
JB		 1961 mutex_lock(&mvm->mutex);
1962
4660dfbb 1963 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 1964 ret = -EBUSY;
519e2026
AN		 1965 goto out;
1966 }
8ca151b5 1967
519e2026
AN		 1968 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1969
b975e55a 1970 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 1971 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
b975e55a
DS		 1972 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1973 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e
DS		 1974 else
1975 ret = iwl_mvm_scan_request(mvm, vif, req);
1976
519e2026
AN		 1977 if (ret)
1978 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1979out:
8ca151b5 1980 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 1981 return ret;
1982}
1983
1984static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1985 struct ieee80211_vif *vif)
1986{
1987 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1988
1989 mutex_lock(&mvm->mutex);
1990
1991 iwl_mvm_cancel_scan(mvm);
1992
1993 mutex_unlock(&mvm->mutex);
1994}
1995
1996static void
1997iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 1998 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 1999 int num_frames,
2000 enum ieee80211_frame_release_type reason,
2001 bool more_data)
2002{
2003 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2004
3e56eadf 2005 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2006
3e56eadf
JB		 2007 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2008 tids, more_data, false);
2009}
2010
2011static void
2012iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2013 struct ieee80211_sta *sta, u16 tids,
2014 int num_frames,
2015 enum ieee80211_frame_release_type reason,
2016 bool more_data)
2017{
2018 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2019
2020 /* Called when we need to transmit (a) frame(s) from agg queue */
2021
2022 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2023 tids, more_data, true);
8ca151b5
JB		 2024}
2025
2026static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2027 struct ieee80211_vif *vif,
2028 enum sta_notify_cmd cmd,
2029 struct ieee80211_sta *sta)
2030{
2031 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2032 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2033 int tid;
8ca151b5
JB		 2034
2035 switch (cmd) {
2036 case STA_NOTIFY_SLEEP:
e3d4bc8c 2037 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2038 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2039 spin_lock_bh(&mvmsta->lock);
2040 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2041 struct iwl_mvm_tid_data *tid_data;
2042
2043 tid_data = &mvmsta->tid_data[tid];
2044 if (tid_data->state != IWL_AGG_ON &&
2045 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2046 continue;
2047 if (iwl_mvm_tid_queued(tid_data) == 0)
2048 continue;
2049 ieee80211_sta_set_buffered(sta, tid, true);
2050 }
2051 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2052 /*
2053 * The fw updates the STA to be asleep. Tx packets on the Tx
2054 * queues to this station will not be transmitted. The fw will
2055 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2056 */
2057 break;
2058 case STA_NOTIFY_AWAKE:
881acd89 2059 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2060 break;
9cc40712 2061 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2062 break;
2063 default:
2064 break;
2065 }
2066}
2067
1ddbbb0c
JB		 2068static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2069 struct ieee80211_vif *vif,
2070 struct ieee80211_sta *sta)
2071{
2072 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2073 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2074
2075 /*
2076 * This is called before mac80211 does RCU synchronisation,
2077 * so here we already invalidate our internal RCU-protected
2078 * station pointer. The rest of the code will thus no longer
2079 * be able to find the station this way, and we don't rely
2080 * on further RCU synchronisation after the sta_state()
2081 * callback deleted the station.
2082 */
2083 mutex_lock(&mvm->mutex);
2084 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2085 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2086 ERR_PTR(-ENOENT));
2087 mutex_unlock(&mvm->mutex);
2088}
2089
8ca151b5
JB		 2090static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2091 struct ieee80211_vif *vif,
2092 struct ieee80211_sta *sta,
2093 enum ieee80211_sta_state old_state,
2094 enum ieee80211_sta_state new_state)
2095{
2096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2098 int ret;
2099
2100 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2101 sta->addr, old_state, new_state);
2102
2103 /* this would be a mac80211 bug ... but don't crash */
2104 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2105 return -EINVAL;
2106
2107 /* if a STA is being removed, reuse its ID */
2108 flush_work(&mvm->sta_drained_wk);
2109
2110 mutex_lock(&mvm->mutex);
2111 if (old_state == IEEE80211_STA_NOTEXIST &&
2112 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2113 /*
2114 * Firmware bug - it'll crash if the beacon interval is less
2115 * than 16. We can't avoid connecting at all, so refuse the
2116 * station state change, this will cause mac80211 to abandon
2117 * attempts to connect to this AP, and eventually wpa_s will
2118 * blacklist the AP...
2119 */
2120 if (vif->type == NL80211_IFTYPE_STATION &&
2121 vif->bss_conf.beacon_int < 16) {
2122 IWL_ERR(mvm,
2123 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2124 sta->addr, vif->bss_conf.beacon_int);
2125 ret = -EINVAL;
2126 goto out_unlock;
2127 }
cf7b491d
AN		 2128
2129 if (sta->tdls &&
2130 (vif->p2p ||
fa3d07e4
AN		 2131 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2132 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2133 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2134 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2135 ret = -EBUSY;
2136 goto out_unlock;
2137 }
2138
8ca151b5 2139 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2140 if (sta->tdls && ret == 0)
2141 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2142 } else if (old_state == IEEE80211_STA_NONE &&
2143 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2144 /*
2145 * EBS may be disabled due to previous failures reported by FW.
2146 * Reset EBS status here assuming environment has been changed.
2147 */
2148 mvm->last_ebs_successful = true;
8ca151b5
JB		 2149 ret = 0;
2150 } else if (old_state == IEEE80211_STA_AUTH &&
2151 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2152 ret = iwl_mvm_update_sta(mvm, vif, sta);
2153 if (ret == 0)
2154 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2155 mvmvif->phy_ctxt->channel->band,
2156 true);
8ca151b5
JB		 2157 } else if (old_state == IEEE80211_STA_ASSOC &&
2158 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2159
2160 /* we don't support TDLS during DCM */
2161 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2162 iwl_mvm_teardown_tdls_peers(mvm);
2163
7df15b1e 2164 /* enable beacon filtering */
fa7b2e7f 2165 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2166 ret = 0;
2167 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2168 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2169 /* disable beacon filtering */
a1022927 2170 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2171 ret = 0;
2172 } else if (old_state == IEEE80211_STA_ASSOC &&
2173 new_state == IEEE80211_STA_AUTH) {
2174 ret = 0;
2175 } else if (old_state == IEEE80211_STA_AUTH &&
2176 new_state == IEEE80211_STA_NONE) {
2177 ret = 0;
2178 } else if (old_state == IEEE80211_STA_NONE &&
2179 new_state == IEEE80211_STA_NOTEXIST) {
2180 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2181 if (sta->tdls)
2182 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2183 } else {
2184 ret = -EIO;
2185 }
48bc1307 2186 out_unlock:
8ca151b5
JB		 2187 mutex_unlock(&mvm->mutex);
2188
9c126cd6
LK		 2189 if (sta->tdls && ret == 0) {
2190 if (old_state == IEEE80211_STA_NOTEXIST &&
2191 new_state == IEEE80211_STA_NONE)
2192 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2193 else if (old_state == IEEE80211_STA_NONE &&
2194 new_state == IEEE80211_STA_NOTEXIST)
2195 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2196 }
2197
8ca151b5
JB		 2198 return ret;
2199}
2200
2201static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2202{
2203 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2204
2205 mvm->rts_threshold = value;
2206
2207 return 0;
2208}
2209
1f3b0ff8
LE		 2210static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2211 struct ieee80211_vif *vif,
2212 struct ieee80211_sta *sta, u32 changed)
2213{
2214 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2215
2216 if (vif->type == NL80211_IFTYPE_STATION &&
2217 changed & IEEE80211_RC_NSS_CHANGED)
2218 iwl_mvm_sf_update(mvm, vif, false);
2219}
2220
8ca151b5
JB		 2221static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2222 struct ieee80211_vif *vif, u16 ac,
2223 const struct ieee80211_tx_queue_params *params)
2224{
2225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2226 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2227
2228 mvmvif->queue_params[ac] = *params;
2229
2230 /*
2231 * No need to update right away, we'll get BSS_CHANGED_QOS
2232 * The exception is P2P_DEVICE interface which needs immediate update.
2233 */
2234 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2235 int ret;
2236
2237 mutex_lock(&mvm->mutex);
3dfd3a97 2238 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2239 mutex_unlock(&mvm->mutex);
2240 return ret;
2241 }
2242 return 0;
2243}
2244
2245static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2246 struct ieee80211_vif *vif)
2247{
2248 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2249 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2250 200 + vif->bss_conf.beacon_int);
2251 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2252 100 + vif->bss_conf.beacon_int);
2253
2254 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2255 return;
2256
576eeee9
EP		 2257 /*
2258 * iwl_mvm_protect_session() reads directly from the device
2259 * (the system time), so make sure it is available.
2260 */
2261 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2262 return;
2263
8ca151b5
JB		 2264 mutex_lock(&mvm->mutex);
2265 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2266 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2267 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2268
2269 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2270}
2271
35a000b7
DS		 2272static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2273 struct ieee80211_vif *vif,
2274 struct cfg80211_sched_scan_request *req,
633e2713 2275 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2276{
2277 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2278 int ret;
2279
d2496221
DS		 2280 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2281 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2282 if (ret)
2283 return ret;
2284 }
4660dfbb 2285
35a000b7
DS		 2286 mutex_lock(&mvm->mutex);
2287
59ecb128
AB		 2288 /* Newest FW fixes sched scan while connected on another interface */
2289 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2290 if (!vif->bss_conf.idle) {
2291 ret = -EBUSY;
2292 goto out;
2293 }
2294 } else if (!iwl_mvm_is_idle(mvm)) {
bd5e4744
DS		 2295 ret = -EBUSY;
2296 goto out;
2297 }
2298
4660dfbb 2299 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2300 ret = -EBUSY;
2301 goto out;
2302 }
2303
b141c235 2304 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2305 if (ret)
b141c235 2306 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2307
35a000b7
DS		 2308out:
2309 mutex_unlock(&mvm->mutex);
2310 return ret;
2311}
2312
37e3308c
JB		 2313static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2314 struct ieee80211_vif *vif)
35a000b7
DS		 2315{
2316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2317 int ret;
35a000b7
DS		 2318
2319 mutex_lock(&mvm->mutex);
fb98be5e 2320 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2321 mutex_unlock(&mvm->mutex);
33ea27f6 2322 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2323
33ea27f6 2324 return ret;
d2496221 2325
35a000b7
DS		 2326}
2327
8ca151b5
JB		 2328static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2329 enum set_key_cmd cmd,
2330 struct ieee80211_vif *vif,
2331 struct ieee80211_sta *sta,
2332 struct ieee80211_key_conf *key)
2333{
2334 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2335 int ret;
2336
2337 if (iwlwifi_mod_params.sw_crypto) {
2338 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2339 return -EOPNOTSUPP;
2340 }
2341
2342 switch (key->cipher) {
2343 case WLAN_CIPHER_SUITE_TKIP:
2344 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2345 /* fall-through */
2346 case WLAN_CIPHER_SUITE_CCMP:
2347 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2348 break;
2349 case WLAN_CIPHER_SUITE_AES_CMAC:
2350 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2351 break;
2352 case WLAN_CIPHER_SUITE_WEP40:
2353 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2354 /* For non-client mode, only use WEP keys for TX as we probably
2355 * don't have a station yet anyway and would then have to keep
2356 * track of the keys, linking them to each of the clients/peers
2357 * as they appear. For now, don't do that, for performance WEP
2358 * offload doesn't really matter much, but we need it for some
2359 * other offload features in client mode.
8ca151b5 2360 */
ba3943b0
JB		 2361 if (vif->type != NL80211_IFTYPE_STATION)
2362 return 0;
2363 break;
8ca151b5 2364 default:
e36e5433
MS		 2365 /* currently FW supports only one optional cipher scheme */
2366 if (hw->n_cipher_schemes &&
2367 hw->cipher_schemes->cipher == key->cipher)
2368 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2369 else
2370 return -EOPNOTSUPP;
8ca151b5
JB		 2371 }
2372
2373 mutex_lock(&mvm->mutex);
2374
2375 switch (cmd) {
2376 case SET_KEY:
5023d966
JB		 2377 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2378 vif->type == NL80211_IFTYPE_AP) && !sta) {
2379 /*
2380 * GTK on AP interface is a TX-only key, return 0;
2381 * on IBSS they're per-station and because we're lazy
2382 * we don't support them for RX, so do the same.
2383 */
6caffd4f
JB		 2384 ret = 0;
2385 key->hw_key_idx = STA_KEY_IDX_INVALID;
2386 break;
2387 }
2388
8ca151b5
JB		 2389 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2390 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2391 if (ret) {
2392 IWL_WARN(mvm, "set key failed\n");
2393 /*
2394 * can't add key for RX, but we don't need it
2395 * in the device for TX so still return 0
2396 */
6caffd4f 2397 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2398 ret = 0;
2399 }
2400
2401 break;
2402 case DISABLE_KEY:
6caffd4f
JB		 2403 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2404 ret = 0;
2405 break;
2406 }
2407
8ca151b5
JB		 2408 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2409 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2410 break;
2411 default:
2412 ret = -EINVAL;
2413 }
2414
2415 mutex_unlock(&mvm->mutex);
2416 return ret;
2417}
2418
2419static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2420 struct ieee80211_vif *vif,
2421 struct ieee80211_key_conf *keyconf,
2422 struct ieee80211_sta *sta,
2423 u32 iv32, u16 *phase1key)
2424{
2425 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2426
5023d966
JB		 2427 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2428 return;
2429
8ca151b5
JB		 2430 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2431}
2432
2433
b112889c
AM		 2434static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2435 struct iwl_rx_packet *pkt, void *data)
2436{
2437 struct iwl_mvm *mvm =
2438 container_of(notif_wait, struct iwl_mvm, notif_wait);
2439 struct iwl_hs20_roc_res *resp;
2440 int resp_len = iwl_rx_packet_payload_len(pkt);
2441 struct iwl_mvm_time_event_data *te_data = data;
2442
2443 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2444 return true;
2445
2446 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2447 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2448 return true;
2449 }
2450
2451 resp = (void *)pkt->data;
2452
2453 IWL_DEBUG_TE(mvm,
2454 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2455 resp->status, resp->event_unique_id);
2456
2457 te_data->uid = le32_to_cpu(resp->event_unique_id);
2458 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2459 te_data->uid);
2460
2461 spin_lock_bh(&mvm->time_event_lock);
2462 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2463 spin_unlock_bh(&mvm->time_event_lock);
2464
2465 return true;
2466}
2467
2468#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2469static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2470 struct ieee80211_channel *channel,
2471 struct ieee80211_vif *vif,
2472 int duration)
2473{
2474 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2475 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2476 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2477 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2478 struct iwl_notification_wait wait_time_event;
2479 struct iwl_hs20_roc_req aux_roc_req = {
2480 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2481 .id_and_color =
2482 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2483 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2484 /* Set the channel info data */
2485 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2486 PHY_BAND_24 : PHY_BAND_5,
2487 .channel_info.channel = channel->hw_value,
2488 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2489 /* Set the time and duration */
2490 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2491 .apply_time_max_delay =
2492 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2493 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2494 };
2495
2496 /* Set the node address */
2497 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2498
a6cc5163
MG		 2499 lockdep_assert_held(&mvm->mutex);
2500
2501 spin_lock_bh(&mvm->time_event_lock);
2502
2503 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2504 spin_unlock_bh(&mvm->time_event_lock);
2505 return -EIO;
2506 }
2507
b112889c
AM		 2508 te_data->vif = vif;
2509 te_data->duration = duration;
2510 te_data->id = HOT_SPOT_CMD;
2511
b112889c
AM		 2512 spin_unlock_bh(&mvm->time_event_lock);
2513
2514 /*
2515 * Use a notification wait, which really just processes the
2516 * command response and doesn't wait for anything, in order
2517 * to be able to process the response and get the UID inside
2518 * the RX path. Using CMD_WANT_SKB doesn't work because it
2519 * stores the buffer and then wakes up this thread, by which
2520 * time another notification (that the time event started)
2521 * might already be processed unsuccessfully.
2522 */
2523 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2524 time_event_response,
2525 ARRAY_SIZE(time_event_response),
2526 iwl_mvm_rx_aux_roc, te_data);
2527
2528 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2529 &aux_roc_req);
2530
2531 if (res) {
2532 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2533 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2534 goto out_clear_te;
2535 }
2536
2537 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2538 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2539 /* should never fail */
2540 WARN_ON_ONCE(res);
2541
2542 if (res) {
2543 out_clear_te:
2544 spin_lock_bh(&mvm->time_event_lock);
2545 iwl_mvm_te_clear_data(mvm, te_data);
2546 spin_unlock_bh(&mvm->time_event_lock);
2547 }
2548
2549 return res;
2550}
2551
8ca151b5
JB		 2552static int iwl_mvm_roc(struct ieee80211_hw *hw,
2553 struct ieee80211_vif *vif,
2554 struct ieee80211_channel *channel,
d339d5ca
IP		 2555 int duration,
2556 enum ieee80211_roc_type type)
8ca151b5
JB		 2557{
2558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2559 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2560 struct cfg80211_chan_def chandef;
31d385ae
IP		 2561 struct iwl_mvm_phy_ctxt *phy_ctxt;
2562 int ret, i;
2563
2564 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2565 duration, type);
8ca151b5 2566
a6cc5163
MG		 2567 mutex_lock(&mvm->mutex);
2568
b112889c
AM		 2569 switch (vif->type) {
2570 case NL80211_IFTYPE_STATION:
2571 /* Use aux roc framework (HS20) */
2572 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2573 vif, duration);
a6cc5163 2574 goto out_unlock;
b112889c
AM		 2575 case NL80211_IFTYPE_P2P_DEVICE:
2576 /* handle below */
2577 break;
2578 default:
2579 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2580 ret = -EINVAL;
2581 goto out_unlock;
8ca151b5
JB		 2582 }
2583
31d385ae
IP		 2584 for (i = 0; i < NUM_PHY_CTX; i++) {
2585 phy_ctxt = &mvm->phy_ctxts[i];
2586 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2587 continue;
2588
2589 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2590 /*
2591 * Unbind the P2P_DEVICE from the current PHY context,
2592 * and if the PHY context is not used remove it.
2593 */
2594 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2595 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2596 goto out_unlock;
2597
2598 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2599
2600 /* Bind the P2P_DEVICE to the current PHY Context */
2601 mvmvif->phy_ctxt = phy_ctxt;
2602
2603 ret = iwl_mvm_binding_add_vif(mvm, vif);
2604 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2605 goto out_unlock;
2606
2607 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2608 goto schedule_time_event;
2609 }
2610 }
2611
2612 /* Need to update the PHY context only if the ROC channel changed */
2613 if (channel == mvmvif->phy_ctxt->channel)
2614 goto schedule_time_event;
2615
8ca151b5 2616 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2617
31d385ae
IP		 2618 /*
2619 * Change the PHY context configuration as it is currently referenced
2620 * only by the P2P Device MAC
2621 */
2622 if (mvmvif->phy_ctxt->ref == 1) {
2623 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2624 &chandef, 1, 1);
2625 if (ret)
2626 goto out_unlock;
2627 } else {
2628 /*
2629 * The PHY context is shared with other MACs. Need to remove the
2630 * P2P Device from the binding, allocate an new PHY context and
2631 * create a new binding
2632 */
2633 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2634 if (!phy_ctxt) {
2635 ret = -ENOSPC;
2636 goto out_unlock;
2637 }
2638
2639 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2640 1, 1);
2641 if (ret) {
2642 IWL_ERR(mvm, "Failed to change PHY context\n");
2643 goto out_unlock;
2644 }
2645
2646 /* Unbind the P2P_DEVICE from the current PHY context */
2647 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2648 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2649 goto out_unlock;
2650
2651 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2652
2653 /* Bind the P2P_DEVICE to the new allocated PHY context */
2654 mvmvif->phy_ctxt = phy_ctxt;
2655
2656 ret = iwl_mvm_binding_add_vif(mvm, vif);
2657 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2658 goto out_unlock;
2659
2660 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2661 }
2662
2663schedule_time_event:
8ca151b5 2664 /* Schedule the time events */
e635c797 2665 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2666
31d385ae 2667out_unlock:
8ca151b5
JB		 2668 mutex_unlock(&mvm->mutex);
2669 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2670 return ret;
2671}
2672
2673static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2674{
2675 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2676
2677 IWL_DEBUG_MAC80211(mvm, "enter\n");
2678
2679 mutex_lock(&mvm->mutex);
bf5da87f 2680 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2681 mutex_unlock(&mvm->mutex);
2682
2683 IWL_DEBUG_MAC80211(mvm, "leave\n");
2684 return 0;
2685}
2686
b08c1d97
LC		 2687static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2688 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2689{
fe0f2de3
IP		 2690 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2691 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2692 int ret;
2693
b08c1d97
LC		 2694 lockdep_assert_held(&mvm->mutex);
2695
53a9d61e 2696 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2697
fe0f2de3
IP		 2698 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2699 if (!phy_ctxt) {
2700 ret = -ENOSPC;
2701 goto out;
2702 }
8ca151b5 2703
dcbc3e1a 2704 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2705 ctx->rx_chains_static,
2706 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2707 if (ret) {
2708 IWL_ERR(mvm, "Failed to add PHY context\n");
2709 goto out;
2710 }
2711
53a9d61e 2712 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2713 *phy_ctxt_id = phy_ctxt->id;
2714out:
b08c1d97
LC		 2715 return ret;
2716}
2717
2718static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2719 struct ieee80211_chanctx_conf *ctx)
2720{
2721 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2722 int ret;
2723
2724 mutex_lock(&mvm->mutex);
2725 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2726 mutex_unlock(&mvm->mutex);
b08c1d97 2727
8ca151b5
JB		 2728 return ret;
2729}
2730
b08c1d97
LC		 2731static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2732 struct ieee80211_chanctx_conf *ctx)
2733{
2734 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2735 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2736
2737 lockdep_assert_held(&mvm->mutex);
2738
2739 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2740}
2741
8ca151b5
JB		 2742static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2743 struct ieee80211_chanctx_conf *ctx)
2744{
2745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2746
2747 mutex_lock(&mvm->mutex);
b08c1d97 2748 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2749 mutex_unlock(&mvm->mutex);
2750}
2751
2752static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2753 struct ieee80211_chanctx_conf *ctx,
2754 u32 changed)
2755{
2756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 2757 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2758 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 2759
31d385ae
IP		 2760 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2761 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2762 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 2763 IEEE80211_CHANCTX_CHANGE_RADAR |
2764 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 2765 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2766 phy_ctxt->ref, changed))
2767 return;
2768
8ca151b5 2769 mutex_lock(&mvm->mutex);
4d66449a 2770 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 2771 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 2772 ctx->rx_chains_static,
2773 ctx->rx_chains_dynamic);
2774 mutex_unlock(&mvm->mutex);
2775}
2776
b08c1d97
LC		 2777static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2778 struct ieee80211_vif *vif,
f0c97783
LC		 2779 struct ieee80211_chanctx_conf *ctx,
2780 bool switching_chanctx)
8ca151b5 2781{
fe0f2de3
IP		 2782 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2783 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 2784 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2785 int ret;
2786
b08c1d97 2787 lockdep_assert_held(&mvm->mutex);
8ca151b5 2788
fe0f2de3 2789 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 2790
2791 switch (vif->type) {
2792 case NL80211_IFTYPE_AP:
bd3398e2
AO		 2793 /* Unless it's a CSA flow we have nothing to do here */
2794 if (vif->csa_active) {
2795 mvmvif->ap_ibss_active = true;
2796 break;
2797 }
5023d966 2798 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 2799 /*
2800 * The AP binding flow is handled as part of the start_ap flow
5023d966 2801 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 2802 */
2803 ret = 0;
b08c1d97 2804 goto out;
8ca151b5 2805 case NL80211_IFTYPE_STATION:
2533edce 2806 break;
8ca151b5 2807 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 2808 /* always disable PS when a monitor interface is active */
2809 mvmvif->ps_disabled = true;
8ca151b5
JB		 2810 break;
2811 default:
2812 ret = -EINVAL;
b08c1d97 2813 goto out;
8ca151b5
JB		 2814 }
2815
2816 ret = iwl_mvm_binding_add_vif(mvm, vif);
2817 if (ret)
b08c1d97 2818 goto out;
8ca151b5
JB		 2819
2820 /*
92d85562
AB		 2821 * Power state must be updated before quotas,
2822 * otherwise fw will complain.
2823 */
999609f1 2824 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 2825
2826 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 2827 * interfaces. For the other types, the bss_info changed flow
2828 * will handle quota settings.
2829 */
2830 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 2831 mvmvif->monitor_active = true;
0166230c 2832 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 2833 if (ret)
2834 goto out_remove_binding;
2835 }
2836
bd3398e2 2837 /* Handle binding during CSA */
f0c97783
LC		 2838 if ((vif->type == NL80211_IFTYPE_AP) ||
2839 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
0166230c 2840 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 2841 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 2842 }
2843
0ce04ce7
LC		 2844 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2845 struct iwl_mvm_sta *mvmsta;
2846
2847 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2848 mvmvif->ap_sta_id);
2849
2850 if (WARN_ON(!mvmsta))
2851 goto out;
2852
2853 /* TODO: only re-enable after the first beacon */
2854 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2855 }
2856
b08c1d97 2857 goto out;
8ca151b5 2858
b08c1d97 2859out_remove_binding:
8ca151b5 2860 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 2861 iwl_mvm_power_update_mac(mvm);
b08c1d97 2862out:
8ca151b5
JB		 2863 if (ret)
2864 mvmvif->phy_ctxt = NULL;
2865 return ret;
2866}
b08c1d97
LC		 2867static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2868 struct ieee80211_vif *vif,
2869 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 2870{
2871 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 2872 int ret;
8ca151b5
JB		 2873
2874 mutex_lock(&mvm->mutex);
f0c97783 2875 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 2876 mutex_unlock(&mvm->mutex);
2877
2878 return ret;
2879}
2880
2881static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2882 struct ieee80211_vif *vif,
f0c97783
LC		 2883 struct ieee80211_chanctx_conf *ctx,
2884 bool switching_chanctx)
b08c1d97
LC		 2885{
2886 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 2887 struct ieee80211_vif *disabled_vif = NULL;
0ce04ce7 2888 struct iwl_mvm_sta *mvmsta;
b08c1d97
LC		 2889
2890 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 2891
2892 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2893
8ca151b5 2894 switch (vif->type) {
5023d966 2895 case NL80211_IFTYPE_ADHOC:
b08c1d97 2896 goto out;
8ca151b5 2897 case NL80211_IFTYPE_MONITOR:
1e1391ca 2898 mvmvif->monitor_active = false;
2533edce 2899 mvmvif->ps_disabled = false;
8ca151b5 2900 break;
bd3398e2
AO		 2901 case NL80211_IFTYPE_AP:
2902 /* This part is triggered only during CSA */
2903 if (!vif->csa_active || !mvmvif->ap_ibss_active)
b08c1d97 2904 goto out;
bd3398e2 2905
003e5236
AO		 2906 /* Set CS bit on all the stations */
2907 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2908
2909 /* Save blocked iface, the timeout is set on the next beacon */
2910 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2911
bd3398e2 2912 mvmvif->ap_ibss_active = false;
f0c97783
LC		 2913 break;
2914 case NL80211_IFTYPE_STATION:
2915 if (!switching_chanctx)
2916 break;
2917
2918 disabled_vif = vif;
2919
0ce04ce7
LC		 2920 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2921 mvmvif->ap_sta_id);
2922
2923 if (!WARN_ON(!mvmsta))
2924 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2925
3dfd3a97 2926 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 2927 break;
8ca151b5
JB		 2928 default:
2929 break;
2930 }
2931
f0c97783 2932 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 2933 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 2934
b08c1d97 2935out:
a11e144e 2936 mvmvif->phy_ctxt = NULL;
999609f1 2937 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 2938}
2939
2940static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2941 struct ieee80211_vif *vif,
2942 struct ieee80211_chanctx_conf *ctx)
2943{
2944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2945
2946 mutex_lock(&mvm->mutex);
f0c97783 2947 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 2948 mutex_unlock(&mvm->mutex);
2949}
2950
b08c1d97
LC		 2951static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2952 struct ieee80211_vif_chanctx_switch *vifs,
2953 int n_vifs,
2954 enum ieee80211_chanctx_switch_mode mode)
2955{
2956 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2957 int ret;
2958
2959 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2960 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2961 return -EOPNOTSUPP;
2962
2963 mutex_lock(&mvm->mutex);
f0c97783 2964 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 2965 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2966
2967 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2968 if (ret) {
2969 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2970 goto out_reassign;
2971 }
2972
f0c97783
LC		 2973 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2974 true);
b08c1d97
LC		 2975 if (ret) {
2976 IWL_ERR(mvm,
2977 "failed to assign new_ctx during channel switch\n");
2978 goto out_remove;
2979 }
2980
f697267f
AN		 2981 /* we don't support TDLS during DCM - can be caused by channel switch */
2982 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2983 iwl_mvm_teardown_tdls_peers(mvm);
2984
b08c1d97
LC		 2985 goto out;
2986
2987out_remove:
2988 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2989
2990out_reassign:
2991 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2992 if (ret) {
2993 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2994 goto out_restart;
2995 }
2996
f0c97783
LC		 2997 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2998 true);
b08c1d97
LC		 2999 if (ret) {
3000 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3001 goto out_restart;
3002 }
3003
3004 goto out;
3005
3006out_restart:
3007 /* things keep failing, better restart the hw */
3008 iwl_mvm_nic_restart(mvm, false);
3009
3010out:
3011 mutex_unlock(&mvm->mutex);
3012 return ret;
3013}
3014
8ca151b5
JB		 3015static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3016 struct ieee80211_sta *sta,
3017 bool set)
3018{
3019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3020 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
3021
3022 if (!mvm_sta || !mvm_sta->vif) {
3023 IWL_ERR(mvm, "Station is not associated to a vif\n");
3024 return -EINVAL;
3025 }
3026
3027 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3028}
3029
507cadf2
DS		 3030#ifdef CONFIG_NL80211_TESTMODE
3031static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3032 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3033 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3034 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3035};
3036
3037static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3038 struct ieee80211_vif *vif,
3039 void *data, int len)
3040{
3041 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3042 int err;
3043 u32 noa_duration;
3044
3045 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3046 if (err)
3047 return err;
3048
3049 if (!tb[IWL_MVM_TM_ATTR_CMD])
3050 return -EINVAL;
3051
3052 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3053 case IWL_MVM_TM_CMD_SET_NOA:
3054 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3055 !vif->bss_conf.enable_beacon ||
3056 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3057 return -EINVAL;
3058
3059 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3060 if (noa_duration >= vif->bss_conf.beacon_int)
3061 return -EINVAL;
3062
3063 mvm->noa_duration = noa_duration;
3064 mvm->noa_vif = vif;
3065
0166230c 3066 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3067 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3068 /* must be associated client vif - ignore authorized */
3069 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3070 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3071 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3072 return -EINVAL;
3073
3074 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3075 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3076 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3077 }
3078
3079 return -EOPNOTSUPP;
3080}
3081
3082static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3083 struct ieee80211_vif *vif,
3084 void *data, int len)
3085{
3086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3087 int err;
3088
3089 mutex_lock(&mvm->mutex);
3090 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3091 mutex_unlock(&mvm->mutex);
3092
3093 return err;
3094}
3095#endif
3096
bd3398e2
AO		 3097static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
3098 struct ieee80211_vif *vif,
3099 struct cfg80211_chan_def *chandef)
3100{
3101 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3102 struct ieee80211_vif *csa_vif;
bd3398e2
AO		 3103
3104 mutex_lock(&mvm->mutex);
664322fa
AO		 3105
3106 csa_vif = rcu_dereference_protected(mvm->csa_vif,
3107 lockdep_is_held(&mvm->mutex));
3108 if (WARN(csa_vif && csa_vif->csa_active,
bd3398e2
AO		 3109 "Another CSA is already in progress"))
3110 goto out_unlock;
3111
3112 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
3113 chandef->center_freq1);
664322fa 3114 rcu_assign_pointer(mvm->csa_vif, vif);
bd3398e2
AO		 3115
3116out_unlock:
3117 mutex_unlock(&mvm->mutex);
3118}
3119
c5b0e7c0
EG		 3120static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3121 struct ieee80211_vif *vif, u32 queues, bool drop)
3122{
3123 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3124 struct iwl_mvm_vif *mvmvif;
3125 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3126 struct ieee80211_sta *sta;
3127 int i;
3128 u32 msk = 0;
c5b0e7c0
EG		 3129
3130 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3131 return;
3132
3133 mutex_lock(&mvm->mutex);
3134 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3135
a0f6bf2a
AN		 3136 /* flush the AP-station and all TDLS peers */
3137 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3138 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3139 lockdep_is_held(&mvm->mutex));
3140 if (IS_ERR_OR_NULL(sta))
3141 continue;
3142
3143 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3144 if (mvmsta->vif != vif)
3145 continue;
3146
3147 /* make sure only TDLS peers or the AP are flushed */
3148 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3149
3150 msk |= mvmsta->tfd_queue_msk;
480acbce 3151 }
c5b0e7c0
EG		 3152
3153 if (drop) {
a0f6bf2a 3154 if (iwl_mvm_flush_tx_path(mvm, msk, true))
c5b0e7c0 3155 IWL_ERR(mvm, "flush request fail\n");
480acbce 3156 mutex_unlock(&mvm->mutex);
c5b0e7c0 3157 } else {
480acbce
JB		 3158 mutex_unlock(&mvm->mutex);
3159
3160 /* this can take a while, and we may need/want other operations
3161 * to succeed while doing this, so do it without the mutex held
3162 */
a0f6bf2a 3163 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
c5b0e7c0 3164 }
c5b0e7c0
EG		 3165}
3166
e5209263 3167const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3168 .tx = iwl_mvm_mac_tx,
3169 .ampdu_action = iwl_mvm_mac_ampdu_action,
3170 .start = iwl_mvm_mac_start,
cf2c92d8 3171 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3172 .stop = iwl_mvm_mac_stop,
3173 .add_interface = iwl_mvm_mac_add_interface,
3174 .remove_interface = iwl_mvm_mac_remove_interface,
3175 .config = iwl_mvm_mac_config,
e59647ea 3176 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3177 .configure_filter = iwl_mvm_configure_filter,
3178 .bss_info_changed = iwl_mvm_bss_info_changed,
3179 .hw_scan = iwl_mvm_mac_hw_scan,
3180 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3181 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3182 .sta_state = iwl_mvm_mac_sta_state,
3183 .sta_notify = iwl_mvm_mac_sta_notify,
3184 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3185 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3186 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3187 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3188 .conf_tx = iwl_mvm_mac_conf_tx,
3189 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3190 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3191 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3192 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3193 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3194 .set_key = iwl_mvm_mac_set_key,
3195 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3196 .remain_on_channel = iwl_mvm_roc,
3197 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3198 .add_chanctx = iwl_mvm_add_chanctx,
3199 .remove_chanctx = iwl_mvm_remove_chanctx,
3200 .change_chanctx = iwl_mvm_change_chanctx,
3201 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3202 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3203 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3204
5023d966
JB		 3205 .start_ap = iwl_mvm_start_ap_ibss,
3206 .stop_ap = iwl_mvm_stop_ap_ibss,
3207 .join_ibss = iwl_mvm_start_ap_ibss,
3208 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3209
3210 .set_tim = iwl_mvm_set_tim,
3211
bd3398e2
AO		 3212 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3213
507cadf2
DS		 3214 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3215
8ca151b5
JB		 3216#ifdef CONFIG_PM_SLEEP
3217 /* look at d3.c */
3218 .suspend = iwl_mvm_suspend,
3219 .resume = iwl_mvm_resume,
3220 .set_wakeup = iwl_mvm_set_wakeup,
3221 .set_rekey_data = iwl_mvm_set_rekey_data,
3222#if IS_ENABLED(CONFIG_IPV6)
3223 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3224#endif
3225 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3226#endif
3227};
A mirror of Linus' kernel repository