]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blame - drivers/net/wireless/iwlwifi/mvm/mac80211.c
projects / mirror_ubuntu-artful-kernel.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: mvm: don't increase max_out_time when low priority scan is requested
[mirror_ubuntu-artful-kernel.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"
363039be 88#include "iwl-csr.h"
88931cc9 89#include "iwl-nvm-parse.h"
8ca151b5
JB		 90
91static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
92 {
93 .max = 1,
8eb38710 94 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 95 },
3c15a0fb
JB		 96 {
97 .max = 1,
8eb38710
IP		 98 .types = BIT(NL80211_IFTYPE_AP) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 100 BIT(NL80211_IFTYPE_P2P_GO),
101 },
102 {
103 .max = 1,
104 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
105 },
8ca151b5
JB		 106};
107
108static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
109 {
2624a5ca 110 .num_different_channels = 2,
8ca151b5
JB		 111 .max_interfaces = 3,
112 .limits = iwl_mvm_limits,
113 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
114 },
115};
116
f0c2646a
JB		 117#ifdef CONFIG_PM_SLEEP
118static const struct nl80211_wowlan_tcp_data_token_feature
119iwl_mvm_wowlan_tcp_token_feature = {
120 .min_len = 0,
121 .max_len = 255,
122 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
123};
124
125static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
126 .tok = &iwl_mvm_wowlan_tcp_token_feature,
127 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
128 sizeof(struct ethhdr) -
129 sizeof(struct iphdr) -
130 sizeof(struct tcphdr),
131 .data_interval_max = 65535, /* __le16 in API */
132 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
133 sizeof(struct ethhdr) -
134 sizeof(struct iphdr) -
135 sizeof(struct tcphdr),
136 .seq = true,
137};
138#endif
139
77736923 140#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 141/*
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
148 * be skipped.
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
151 */
152enum {
153 BC_FILTER_MAGIC_NONE = 0,
154 BC_FILTER_MAGIC_IP,
155 BC_FILTER_MAGIC_MAC,
156};
157
77736923
EP		 158static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
159 {
160 /* arp */
161 .discard = 0,
162 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
163 .attrs = {
164 {
165 /* frame type - arp, hw type - ethernet */
166 .offset_type =
167 BCAST_FILTER_OFFSET_PAYLOAD_START,
168 .offset = sizeof(rfc1042_header),
169 .val = cpu_to_be32(0x08060001),
170 .mask = cpu_to_be32(0xffffffff),
171 },
2ee8f021
EP		 172 {
173 /* arp dest ip */
174 .offset_type =
175 BCAST_FILTER_OFFSET_PAYLOAD_START,
176 .offset = sizeof(rfc1042_header) + 2 +
177 sizeof(struct arphdr) +
178 ETH_ALEN + sizeof(__be32) +
179 ETH_ALEN,
180 .mask = cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
183 },
184 },
185 },
186 {
187 /* dhcp offer bcast */
188 .discard = 0,
189 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
190 .attrs = {
191 {
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = offsetof(struct udphdr, dest),
195 .val = cpu_to_be32(0x00440000),
196 .mask = cpu_to_be32(0xffff0000),
197 },
198 {
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type = BCAST_FILTER_OFFSET_IP_END,
201 .offset = 38,
202 .mask = cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
205 },
77736923
EP		 206 },
207 },
208 /* last filter must be empty */
209 {},
210};
211#endif
212
7498cf4c
EP		 213void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
214{
7bb426ea 215 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 216 return;
217
218 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 219 spin_lock_bh(&mvm->refs_lock);
220 mvm->refs[ref_type]++;
221 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 222 iwl_trans_ref(mvm->trans);
223}
224
225void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
226{
7bb426ea 227 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 228 return;
229
230 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 231 spin_lock_bh(&mvm->refs_lock);
232 WARN_ON(!mvm->refs[ref_type]--);
233 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 234 iwl_trans_unref(mvm->trans);
235}
236
576eeee9
EP		 237static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
238 enum iwl_mvm_ref_type except_ref)
7498cf4c 239{
576eeee9 240 int i, j;
7498cf4c 241
7bb426ea 242 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 243 return;
244
576eeee9
EP		 245 spin_lock_bh(&mvm->refs_lock);
246 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
247 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 248 continue;
249
576eeee9
EP		 250 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
251 i, mvm->refs[i]);
252 for (j = 0; j < mvm->refs[i]; j++)
253 iwl_trans_unref(mvm->trans);
254 mvm->refs[i] = 0;
7498cf4c 255 }
576eeee9 256 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 257}
258
f4cf8680
EP		 259bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
260{
261 int i;
262 bool taken = false;
263
264 if (!iwl_mvm_is_d0i3_supported(mvm))
265 return true;
266
267 spin_lock_bh(&mvm->refs_lock);
268 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
269 if (mvm->refs[i]) {
270 taken = true;
271 break;
272 }
273 }
274 spin_unlock_bh(&mvm->refs_lock);
275
276 return taken;
277}
278
576eeee9 279int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 280{
281 iwl_mvm_ref(mvm, ref_type);
282
283 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
284 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
285 HZ)) {
286 WARN_ON_ONCE(1);
287 iwl_mvm_unref(mvm, ref_type);
288 return -EIO;
289 }
290
291 return 0;
292}
293
fe0f2de3
IP		 294static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
295{
296 int i;
297
298 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
299 for (i = 0; i < NUM_PHY_CTX; i++) {
300 mvm->phy_ctxts[i].id = i;
301 mvm->phy_ctxts[i].ref = 0;
302 }
303}
304
88931cc9 305struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 306 const char *alpha2,
47c8b154
JD		 307 enum iwl_mcc_source src_id,
308 bool *changed)
88931cc9
AN		 309{
310 struct ieee80211_regdomain *regd = NULL;
311 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
312 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
313 struct iwl_mcc_update_resp *resp;
314
315 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
316
8ba2d7a1 317 lockdep_assert_held(&mvm->mutex);
88931cc9 318
8ba2d7a1 319 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 320 if (IS_ERR_OR_NULL(resp)) {
321 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
322 PTR_RET(resp));
8ba2d7a1 323 goto out;
88931cc9
AN		 324 }
325
47c8b154
JD		 326 if (changed)
327 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
328
162ee3c9 329 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 330 __le32_to_cpu(resp->n_channels),
331 resp->channels,
332 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 333 /* Store the return source id */
334 src_id = resp->source_id;
88931cc9
AN		 335 kfree(resp);
336 if (IS_ERR_OR_NULL(regd)) {
337 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
8ba2d7a1
EH		 338 PTR_RET(regd));
339 goto out;
88931cc9
AN		 340 }
341
8ba2d7a1
EH		 342 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
343 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 344 mvm->lar_regdom_set = true;
8ba2d7a1 345 mvm->mcc_src = src_id;
88931cc9 346
8ba2d7a1 347out:
88931cc9
AN		 348 return regd;
349}
350
47c8b154
JD		 351void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
352{
353 bool changed;
354 struct ieee80211_regdomain *regd;
355
356 if (!iwl_mvm_is_lar_supported(mvm))
357 return;
358
359 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
360 if (!IS_ERR_OR_NULL(regd)) {
361 /* only update the regulatory core if changed */
362 if (changed)
363 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
364
365 kfree(regd);
366 }
367}
368
369struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
370 bool *changed)
8ba2d7a1
EH		 371{
372 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
373 iwl_mvm_is_wifi_mcc_supported(mvm) ?
374 MCC_SOURCE_GET_CURRENT :
47c8b154 375 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 376}
377
378int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
379{
380 enum iwl_mcc_source used_src;
381 struct ieee80211_regdomain *regd;
b6e160ab
AN		 382 int ret;
383 bool changed;
8ba2d7a1
EH		 384 const struct ieee80211_regdomain *r =
385 rtnl_dereference(mvm->hw->wiphy->regd);
386
387 if (!r)
b6e160ab 388 return -ENOENT;
8ba2d7a1
EH		 389
390 /* save the last source in case we overwrite it below */
391 used_src = mvm->mcc_src;
392 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
393 /* Notify the firmware we support wifi location updates */
47c8b154 394 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 395 if (!IS_ERR_OR_NULL(regd))
396 kfree(regd);
397 }
398
399 /* Now set our last stored MCC and source */
b6e160ab
AN		 400 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
401 &changed);
8ba2d7a1
EH		 402 if (IS_ERR_OR_NULL(regd))
403 return -EIO;
404
b6e160ab
AN		 405 /* update cfg80211 if the regdomain was changed */
406 if (changed)
407 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
408 else
409 ret = 0;
8ba2d7a1 410
b6e160ab
AN		 411 kfree(regd);
412 return ret;
8ba2d7a1
EH		 413}
414
8ca151b5
JB		 415int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
416{
417 struct ieee80211_hw *hw = mvm->hw;
831e85f3 418 int num_mac, ret, i;
8ca151b5
JB		 419
420 /* Tell mac80211 our characteristics */
421 hw->flags = IEEE80211_HW_SIGNAL_DBM |
422 IEEE80211_HW_SPECTRUM_MGMT |
423 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
424 IEEE80211_HW_QUEUE_CONTROL |
425 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 426 IEEE80211_HW_SUPPORTS_PS |
427 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 428 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 429 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 430 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 431 IEEE80211_HW_CHANCTX_STA_CSA |
432 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 433
19e737c9 434 hw->queues = mvm->first_agg_queue;
398e8c6c 435 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 436 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
437 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 438 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
439 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 440 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 443
444 /*
445 * Enable 11w if advertised by firmware and software crypto
446 * is not enabled (as the firmware will interpret some mgmt
447 * packets, so enabling it with software crypto isn't safe)
448 */
449 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
450 !iwlwifi_mod_params.sw_crypto)
451 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
452
1f940386
LC		 453 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
454 hw->wiphy->features |=
455 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
456 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fb98be5e 457
8ca151b5
JB		 458 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
459 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 460 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 461
462 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 463 BIT(NL80211_IFTYPE_P2P_CLIENT) |
464 BIT(NL80211_IFTYPE_AP) |
465 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 466 BIT(NL80211_IFTYPE_P2P_DEVICE) |
467 BIT(NL80211_IFTYPE_ADHOC);
5023d966 468
a2f73b6c 469 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 470 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
471 if (iwl_mvm_is_lar_supported(mvm))
472 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
473 else
474 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
475 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 476
3e56eadf
JB		 477 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
478 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
479
94bbed72 480 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 481
8ca151b5
JB		 482 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
483 hw->wiphy->n_iface_combinations =
484 ARRAY_SIZE(iwl_mvm_iface_combinations);
485
c451e6d4 486 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 487 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 488 /* we can compensate an offset of up to 3 channels = 15 MHz */
489 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 490
491 /* Extract MAC address */
492 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
493 hw->wiphy->addresses = mvm->addresses;
494 hw->wiphy->n_addresses = 1;
831e85f3
IP		 495
496 /* Extract additional MAC addresses if available */
497 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
498 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
499
500 for (i = 1; i < num_mac; i++) {
501 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 502 ETH_ALEN);
831e85f3 503 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 504 hw->wiphy->n_addresses++;
505 }
506
fe0f2de3
IP		 507 iwl_mvm_reset_phy_ctxts(mvm);
508
48849a41 509 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 510
8ca151b5
JB		 511 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
512
513 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
514 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
515 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 516 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 517 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
518 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
519
c9faccc9
ES		 520 if ((mvm->fw->ucode_capa.capa[0] &
521 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
522 (mvm->fw->ucode_capa.api[0] &
523 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 524 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
525 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
526 }
527
8ca151b5
JB		 528 hw->wiphy->hw_version = mvm->trans->hw_id;
529
ade50652 530 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 531 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
532 else
533 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
534
6efaaf33
EG		 535 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
536 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
537 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
538 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
539 /* we create the 802.11 header and zero length SSID IE. */
540 hw->wiphy->max_sched_scan_ie_len =
541 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
542 }
35a000b7 543
8ca151b5 544 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 545 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 546 NL80211_FEATURE_P2P_GO_OPPPS |
547 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 548 NL80211_FEATURE_STATIC_SMPS |
549 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 550
f1daa00e
AO		 551 if (mvm->fw->ucode_capa.capa[0] &
552 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
553 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 554 if (mvm->fw->ucode_capa.capa[0] &
555 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
556 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 557
73897bd1
AO		 558 if (mvm->fw->ucode_capa.capa[0] &
559 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
560 hw->wiphy->features |=
561 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
562
563 if (mvm->fw->ucode_capa.capa[0] &
564 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
565 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
566
8ca151b5
JB		 567 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
568
e36e5433 569 /* currently FW API supports only one optional cipher scheme */
9ddca860 570 if (mvm->fw->cs[0].cipher) {
e36e5433 571 mvm->hw->n_cipher_schemes = 1;
9ddca860 572 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 573 }
574
8ca151b5 575#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 576 if (iwl_mvm_is_d0i3_supported(mvm) &&
577 device_can_wakeup(mvm->trans->dev)) {
578 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
579 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 580 }
581
582 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 583 mvm->trans->ops->d3_suspend &&
584 mvm->trans->ops->d3_resume &&
585 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 586 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
587 WIPHY_WOWLAN_DISCONNECT |
588 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
589 WIPHY_WOWLAN_RFKILL_RELEASE |
590 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 591 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 592 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
593 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
594 WIPHY_WOWLAN_4WAY_HANDSHAKE;
595
596 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
597 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
598 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 599 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 600 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
601 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 602 }
603#endif
604
77736923
EP		 605#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
606 /* assign default bcast filtering configuration */
607 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
608#endif
609
8ca151b5
JB		 610 ret = iwl_mvm_leds_init(mvm);
611 if (ret)
612 return ret;
613
d8f1c515
AN		 614 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
615 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
616 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
617 }
618
1d3c3f63
AN		 619 if (mvm->fw->ucode_capa.capa[0] &
620 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
621 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
622 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
623 }
624
b7327d89
EG		 625 ret = ieee80211_register_hw(mvm->hw);
626 if (ret)
627 iwl_mvm_leds_exit(mvm);
628
629 return ret;
8ca151b5
JB		 630}
631
b2492501
AN		 632static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
633 struct ieee80211_sta *sta,
634 struct sk_buff *skb)
635{
636 struct iwl_mvm_sta *mvmsta;
637 bool defer = false;
638
639 /*
640 * double check the IN_D0I3 flag both before and after
641 * taking the spinlock, in order to prevent taking
642 * the spinlock when not needed.
643 */
644 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
645 return false;
646
647 spin_lock(&mvm->d0i3_tx_lock);
648 /*
649 * testing the flag again ensures the skb dequeue
650 * loop (on d0i3 exit) hasn't run yet.
651 */
652 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
653 goto out;
654
655 mvmsta = iwl_mvm_sta_from_mac80211(sta);
656 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
657 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
658 goto out;
659
660 __skb_queue_tail(&mvm->d0i3_tx, skb);
661 ieee80211_stop_queues(mvm->hw);
662
663 /* trigger wakeup */
664 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
665 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
666
667 defer = true;
668out:
669 spin_unlock(&mvm->d0i3_tx_lock);
670 return defer;
671}
672
8ca151b5
JB		 673static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
674 struct ieee80211_tx_control *control,
675 struct sk_buff *skb)
676{
677 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 678 struct ieee80211_sta *sta = control->sta;
679 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
680 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 681
9ee718aa
EL		 682 if (iwl_mvm_is_radio_killed(mvm)) {
683 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 684 goto drop;
685 }
686
398e8c6c 687 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 688 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
689 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 690 goto drop;
691
3e56eadf
JB		 692 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
693 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
694 ieee80211_is_mgmt(hdr->frame_control) &&
695 !ieee80211_is_deauth(hdr->frame_control) &&
696 !ieee80211_is_disassoc(hdr->frame_control) &&
697 !ieee80211_is_action(hdr->frame_control)))
698 sta = NULL;
699
700 if (sta) {
b2492501
AN		 701 if (iwl_mvm_defer_tx(mvm, sta, skb))
702 return;
3e56eadf 703 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 704 goto drop;
705 return;
706 }
707
708 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
709 goto drop;
710 return;
711 drop:
712 ieee80211_free_txskb(hw, skb);
713}
714
205e2210
EG		 715static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
716{
717 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
718 return false;
719 return true;
720}
721
722static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
723{
724 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
725 return false;
726 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
727 return true;
728
729 /* enabled by default */
730 return true;
731}
732
8ca151b5
JB		 733static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
734 struct ieee80211_vif *vif,
735 enum ieee80211_ampdu_mlme_action action,
736 struct ieee80211_sta *sta, u16 tid,
737 u16 *ssn, u8 buf_size)
738{
739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
740 int ret;
b2492501 741 bool tx_agg_ref = false;
8ca151b5
JB		 742
743 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
744 sta->addr, tid, action);
745
746 if (!(mvm->nvm_data->sku_cap_11n_enable))
747 return -EACCES;
748
b2492501 749 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 750 switch (action) {
751 case IEEE80211_AMPDU_TX_START:
752 case IEEE80211_AMPDU_TX_STOP_CONT:
753 case IEEE80211_AMPDU_TX_STOP_FLUSH:
754 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
755 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 756 /*
9256c205
EP		 757 * for tx start, wait synchronously until D0i3 exit to
758 * get the correct sequence number for the tid.
759 * additionally, some other ampdu actions use direct
760 * target access, which is not handled automatically
761 * by the trans layer (unlike commands), so wait for
762 * d0i3 exit in these cases as well.
b2492501 763 */
d40fc489
GG		 764 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
765 if (ret)
766 return ret;
767
768 tx_agg_ref = true;
9256c205
EP		 769 break;
770 default:
771 break;
b2492501
AN		 772 }
773
8ca151b5
JB		 774 mutex_lock(&mvm->mutex);
775
776 switch (action) {
777 case IEEE80211_AMPDU_RX_START:
205e2210 778 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 779 ret = -EINVAL;
780 break;
781 }
782 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
783 break;
784 case IEEE80211_AMPDU_RX_STOP:
785 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
786 break;
787 case IEEE80211_AMPDU_TX_START:
205e2210 788 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 789 ret = -EINVAL;
790 break;
791 }
8ca151b5
JB		 792 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
793 break;
794 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 795 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
796 break;
8ca151b5
JB		 797 case IEEE80211_AMPDU_TX_STOP_FLUSH:
798 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 799 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 800 break;
801 case IEEE80211_AMPDU_TX_OPERATIONAL:
802 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
803 break;
804 default:
805 WARN_ON_ONCE(1);
806 ret = -EINVAL;
807 break;
808 }
809 mutex_unlock(&mvm->mutex);
810
b2492501
AN		 811 /*
812 * If the tid is marked as started, we won't use it for offloaded
813 * traffic on the next D0i3 entry. It's safe to unref.
814 */
815 if (tx_agg_ref)
816 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
817
8ca151b5
JB		 818 return ret;
819}
820
821static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
822 struct ieee80211_vif *vif)
823{
824 struct iwl_mvm *mvm = data;
825 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
826
827 mvmvif->uploaded = false;
828 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
829
8ca151b5
JB		 830 spin_lock_bh(&mvm->time_event_lock);
831 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
832 spin_unlock_bh(&mvm->time_event_lock);
833
fe0f2de3 834 mvmvif->phy_ctxt = NULL;
8a275bad 835 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 836}
837
aadede6e
JB		 838static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
839 const void *data, size_t datalen)
840{
841 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
842 ssize_t bytes_read;
843 ssize_t bytes_read_trans;
844
845 if (offset < dump_ptrs->op_mode_len) {
846 bytes_read = min_t(ssize_t, count,
847 dump_ptrs->op_mode_len - offset);
848 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
849 bytes_read);
850 offset += bytes_read;
851 count -= bytes_read;
852
853 if (count == 0)
854 return bytes_read;
855 } else {
856 bytes_read = 0;
857 }
858
859 if (!dump_ptrs->trans_ptr)
860 return bytes_read;
861
862 offset -= dump_ptrs->op_mode_len;
863 bytes_read_trans = min_t(ssize_t, count,
864 dump_ptrs->trans_ptr->len - offset);
865 memcpy(buffer + bytes_read,
866 (u8 *)dump_ptrs->trans_ptr->data + offset,
867 bytes_read_trans);
868
869 return bytes_read + bytes_read_trans;
870}
871
872static void iwl_mvm_free_coredump(const void *data)
873{
874 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
875
876 vfree(fw_error_dump->op_mode_ptr);
877 vfree(fw_error_dump->trans_ptr);
878 kfree(fw_error_dump);
879}
880
04fd2c28
LK		 881static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
882 struct iwl_fw_error_dump_data **dump_data)
883{
884 struct iwl_fw_error_dump_fifo *fifo_hdr;
885 u32 *fifo_data;
886 u32 fifo_len;
887 unsigned long flags;
888 int i, j;
889
890 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
891 return;
892
893 /* Pull RXF data from all RXFs */
894 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
895 /*
896 * Keep aside the additional offset that might be needed for
897 * next RXF
898 */
899 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
900
901 fifo_hdr = (void *)(*dump_data)->data;
902 fifo_data = (void *)fifo_hdr->data;
903 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
904
905 /* No need to try to read the data if the length is 0 */
906 if (fifo_len == 0)
907 continue;
908
909 /* Add a TLV for the RXF */
910 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
911 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
912
913 fifo_hdr->fifo_num = cpu_to_le32(i);
914 fifo_hdr->available_bytes =
915 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
916 RXF_RD_D_SPACE +
917 offset_diff));
918 fifo_hdr->wr_ptr =
919 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
920 RXF_RD_WR_PTR +
921 offset_diff));
922 fifo_hdr->rd_ptr =
923 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
924 RXF_RD_RD_PTR +
925 offset_diff));
926 fifo_hdr->fence_ptr =
927 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
928 RXF_RD_FENCE_PTR +
929 offset_diff));
930 fifo_hdr->fence_mode =
931 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
932 RXF_SET_FENCE_MODE +
933 offset_diff));
934
935 /* Lock fence */
936 iwl_trans_write_prph(mvm->trans,
937 RXF_SET_FENCE_MODE + offset_diff, 0x1);
938 /* Set fence pointer to the same place like WR pointer */
939 iwl_trans_write_prph(mvm->trans,
940 RXF_LD_WR2FENCE + offset_diff, 0x1);
941 /* Set fence offset */
942 iwl_trans_write_prph(mvm->trans,
943 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
944 0x0);
945
946 /* Read FIFO */
947 fifo_len /= sizeof(u32); /* Size in DWORDS */
948 for (j = 0; j < fifo_len; j++)
949 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
950 RXF_FIFO_RD_FENCE_INC +
951 offset_diff);
952 *dump_data = iwl_fw_error_next_data(*dump_data);
953 }
954
955 /* Pull TXF data from all TXFs */
956 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
957 /* Mark the number of TXF we're pulling now */
958 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
959
960 fifo_hdr = (void *)(*dump_data)->data;
961 fifo_data = (void *)fifo_hdr->data;
962 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
963
964 /* No need to try to read the data if the length is 0 */
965 if (fifo_len == 0)
966 continue;
967
968 /* Add a TLV for the FIFO */
969 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
970 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
971
972 fifo_hdr->fifo_num = cpu_to_le32(i);
973 fifo_hdr->available_bytes =
974 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
975 TXF_FIFO_ITEM_CNT));
976 fifo_hdr->wr_ptr =
977 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
978 TXF_WR_PTR));
979 fifo_hdr->rd_ptr =
980 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
981 TXF_RD_PTR));
982 fifo_hdr->fence_ptr =
983 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
984 TXF_FENCE_PTR));
985 fifo_hdr->fence_mode =
986 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
987 TXF_LOCK_FENCE));
988
989 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
990 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
991 TXF_WR_PTR);
992
993 /* Dummy-read to advance the read pointer to the head */
994 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
995
996 /* Read FIFO */
997 fifo_len /= sizeof(u32); /* Size in DWORDS */
998 for (j = 0; j < fifo_len; j++)
999 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1000 TXF_READ_MODIFY_DATA);
1001 *dump_data = iwl_fw_error_next_data(*dump_data);
1002 }
1003
1004 iwl_trans_release_nic_access(mvm->trans, &flags);
1005}
1006
b6eaa45a
EG		 1007void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1008{
1009 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1010 !mvm->fw_dump_desc)
1011 return;
1012
1013 kfree(mvm->fw_dump_desc);
1014 mvm->fw_dump_desc = NULL;
1015}
1016
e539761d
LK		 1017#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1018#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1019
4bfa47f3 1020void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1021{
1022 struct iwl_fw_error_dump_file *dump_file;
1023 struct iwl_fw_error_dump_data *dump_data;
1024 struct iwl_fw_error_dump_info *dump_info;
a549b296 1025 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1026 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1027 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1028 u32 sram_len, sram_ofs;
04fd2c28 1029 u32 file_len, fifo_data_len = 0;
addfaada 1030 u32 smem_len = mvm->cfg->smem_len;
86138324 1031 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1032
1033 lockdep_assert_held(&mvm->mutex);
1034
aadede6e 1035 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1036 if (!fw_error_dump)
1037 return;
1038
f53bf4c7
LK		 1039 /* SRAM - include stack CCM if driver knows the values for it */
1040 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1041 const struct fw_img *img;
1042
1043 img = &mvm->fw->img[mvm->cur_ucode];
1044 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1045 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1046 } else {
1047 sram_ofs = mvm->cfg->dccm_offset;
1048 sram_len = mvm->cfg->dccm_len;
1049 }
655e6d6d 1050
04fd2c28
LK		 1051 /* reading RXF/TXF sizes */
1052 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1053 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1054 int i;
1055
1056 fifo_data_len = 0;
1057
1058 /* Count RXF size */
1059 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1060 if (!mem_cfg->rxfifo_size[i])
1061 continue;
1062
1063 /* Add header info */
1064 fifo_data_len += mem_cfg->rxfifo_size[i] +
1065 sizeof(*dump_data) +
1066 sizeof(struct iwl_fw_error_dump_fifo);
1067 }
1068
1069 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1070 if (!mem_cfg->txfifo_size[i])
1071 continue;
655e6d6d 1072
04fd2c28
LK		 1073 /* Add header info */
1074 fifo_data_len += mem_cfg->txfifo_size[i] +
1075 sizeof(*dump_data) +
1076 sizeof(struct iwl_fw_error_dump_fifo);
1077 }
1078 }
655e6d6d
EG		 1079
1080 file_len = sizeof(*dump_file) +
04fd2c28 1081 sizeof(*dump_data) * 2 +
a549b296 1082 sram_len + sizeof(*dump_mem) +
04fd2c28 1083 fifo_data_len +
655e6d6d
EG		 1084 sizeof(*dump_info);
1085
e539761d
LK		 1086 /*
1087 * In 8000 HW family B-step include the ICCM (which resides separately)
1088 */
1089 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1090 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1091 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1092 IWL8260_ICCM_LEN;
1093
b6eaa45a
EG		 1094 if (mvm->fw_dump_desc)
1095 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1096 mvm->fw_dump_desc->len;
1097
addfaada
LK		 1098 /* Make room for the SMEM, if it exists */
1099 if (smem_len)
a549b296 1100 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1101
86138324
IY		 1102 /* Make room for the secondary SRAM, if it exists */
1103 if (sram2_len)
1104 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1105
5bfe6f53 1106 dump_file = vzalloc(file_len);
48eb7b34
EG		 1107 if (!dump_file) {
1108 kfree(fw_error_dump);
b6eaa45a 1109 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1110 return;
48eb7b34 1111 }
655e6d6d 1112
48eb7b34 1113 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1114
1115 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1116 dump_data = (void *)dump_file->data;
1117
1118 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1119 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1120 dump_info = (void *) dump_data->data;
1121 dump_info->device_family =
1122 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1123 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1124 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1125 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1126 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1127 sizeof(dump_info->fw_human_readable));
1128 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1129 sizeof(dump_info->dev_human_readable));
1130 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1131 sizeof(dump_info->bus_human_readable));
1132
1133 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1134 /* We only dump the FIFOs if the FW is in error state */
1135 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1136 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1137
b6eaa45a
EG		 1138 if (mvm->fw_dump_desc) {
1139 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1140 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1141 mvm->fw_dump_desc->len);
1142 dump_trig = (void *)dump_data->data;
1143 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1144 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1145
1146 /* now we can free this copy */
1147 iwl_mvm_free_fw_dump_desc(mvm);
1148 dump_data = iwl_fw_error_next_data(dump_data);
1149 }
1150
a549b296
EG		 1151 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1152 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1153 dump_mem = (void *)dump_data->data;
1154 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1155 dump_mem->offset = cpu_to_le32(sram_ofs);
1156 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1157 sram_len);
1158
addfaada
LK		 1159 if (smem_len) {
1160 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1161 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1162 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1163 dump_mem = (void *)dump_data->data;
1164 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1165 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1166 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1167 dump_mem->data, smem_len);
addfaada
LK		 1168 }
1169
86138324
IY		 1170 if (sram2_len) {
1171 dump_data = iwl_fw_error_next_data(dump_data);
1172 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1173 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1174 dump_mem = (void *)dump_data->data;
1175 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1176 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1177 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1178 dump_mem->data, sram2_len);
1179 }
1180
e539761d
LK		 1181 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1182 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1183 dump_data = iwl_fw_error_next_data(dump_data);
1184 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1185 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1186 sizeof(*dump_mem));
1187 dump_mem = (void *)dump_data->data;
1188 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1189 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1190 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1191 dump_mem->data, IWL8260_ICCM_LEN);
1192 }
1193
48eb7b34
EG		 1194 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1195 fw_error_dump->op_mode_len = file_len;
1196 if (fw_error_dump->trans_ptr)
1197 file_len += fw_error_dump->trans_ptr->len;
1198 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1199
aadede6e
JB		 1200 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1201 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1202
1203 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1204}
655e6d6d 1205
b6eaa45a
EG		 1206struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1207 .trig_desc = {
1208 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1209 },
1210};
1211
8ca151b5
JB		 1212static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1213{
58629d9d
JB		 1214 /* clear the D3 reconfig, we only need it to avoid dumping a
1215 * firmware coredump on reconfiguration, we shouldn't do that
1216 * on D3->D0 transition
1217 */
b6eaa45a
EG		 1218 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1219 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1220 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1221 }
1bd3cbc1 1222
744cb695
EP		 1223 /* cleanup all stale references (scan, roc), but keep the
1224 * ucode_down ref until reconfig is complete
1225 */
1226 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1227
8ca151b5 1228 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1229
1230 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 1231 mvm->ps_disabled = false;
31b8b343 1232 mvm->calibrating = false;
8ca151b5
JB		 1233
1234 /* just in case one was running */
1235 ieee80211_remain_on_channel_expired(mvm->hw);
1236
1237 ieee80211_iterate_active_interfaces_atomic(
1238 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1239 iwl_mvm_cleanup_iterator, mvm);
1240
fe0f2de3 1241 mvm->p2p_device_vif = NULL;
37577fe2 1242 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1243
1244 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 1245 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1246 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1247 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1248 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1249 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1250 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1251 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1252 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1253 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1254
1255 ieee80211_wake_queues(mvm->hw);
1256
228670b2
EP		 1257 /* clear any stale d0i3 state */
1258 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1259
8ca151b5 1260 mvm->vif_count = 0;
113a0447 1261 mvm->rx_ba_sessions = 0;
d2709ad7 1262 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1263
1264 /* keep statistics ticking */
1265 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1266}
1267
a0a09243 1268int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1269{
8ca151b5
JB		 1270 int ret;
1271
a0a09243 1272 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1273
1274 /* Clean up some internal and mac80211 state on restart */
1275 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1276 iwl_mvm_restart_cleanup(mvm);
1277
1278 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1279
1280 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1281 /* Something went wrong - we need to finish some cleanup
1282 * that normally iwl_mvm_mac_restart_complete() below
1283 * would do.
1284 */
1285 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1286 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1287 }
1288
a0a09243
LC		 1289 return ret;
1290}
1291
1292static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1293{
1294 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1295 int ret;
1296
37948fcf
EP		 1297 /* Some hw restart cleanups must not hold the mutex */
1298 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1299 /*
1300 * Make sure we are out of d0i3. This is needed
1301 * to make sure the reference accounting is correct
1302 * (and there is no stale d0i3_exit_work).
1303 */
1304 wait_event_timeout(mvm->d0i3_exit_waitq,
1305 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1306 &mvm->status),
1307 HZ);
1308 }
1309
a0a09243
LC		 1310 mutex_lock(&mvm->mutex);
1311 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1312 mutex_unlock(&mvm->mutex);
1313
1314 return ret;
1315}
1316
cf2c92d8 1317static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1318{
8ca151b5
JB		 1319 int ret;
1320
1321 mutex_lock(&mvm->mutex);
1322
1323 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1324 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1325 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1326 if (ret)
1327 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1328 ret);
1329
7498cf4c
EP		 1330 /* allow transport/FW low power modes */
1331 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1332
cbd2ae2d
AN		 1333 /*
1334 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1335 * of packets the FW sent out, so we must reconnect.
1336 */
1337 iwl_mvm_teardown_tdls_peers(mvm);
1338
8ca151b5
JB		 1339 mutex_unlock(&mvm->mutex);
1340}
1341
088070a2
EP		 1342static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1343{
1344 bool exit_now;
1345
1346 if (!iwl_mvm_is_d0i3_supported(mvm))
1347 return;
1348
1349 mutex_lock(&mvm->d0i3_suspend_mutex);
1350 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1351 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1352 &mvm->d0i3_suspend_flags);
1353 mutex_unlock(&mvm->d0i3_suspend_mutex);
1354
1355 if (exit_now) {
1356 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1357 _iwl_mvm_exit_d0i3(mvm);
1358 }
6735943f
EP		 1359
1360 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1361 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1362 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1363 &mvm->status),
1364 HZ))
1365 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1366}
1367
cf2c92d8
EP		 1368static void
1369iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1370 enum ieee80211_reconfig_type reconfig_type)
1371{
1372 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1373
1374 switch (reconfig_type) {
1375 case IEEE80211_RECONFIG_TYPE_RESTART:
1376 iwl_mvm_restart_complete(mvm);
1377 break;
1378 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1379 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1380 break;
1381 }
1382}
1383
a0a09243 1384void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1385{
a0a09243 1386 lockdep_assert_held(&mvm->mutex);
7498cf4c 1387
91a8bcde
JB		 1388 /* firmware counters are obviously reset now, but we shouldn't
1389 * partially track so also clear the fw_reset_accu counters.
1390 */
1391 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1392
0a79a0c0
EP		 1393 /*
1394 * Disallow low power states when the FW is down by taking
1395 * the UCODE_DOWN ref. in case of ongoing hw restart the
1396 * ref is already taken, so don't take it again.
1397 */
1398 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1399 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1400
8ca151b5
JB		 1401 /* async_handlers_wk is now blocked */
1402
1403 /*
1404 * The work item could be running or queued if the
1405 * ROC time event stops just as we get here.
1406 */
1407 cancel_work_sync(&mvm->roc_done_wk);
1408
1409 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1410
1411 iwl_mvm_async_handlers_purge(mvm);
1412 /* async_handlers_list is empty and will stay empty: HW is stopped */
1413
1414 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1415 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1416
0a79a0c0
EP		 1417 /*
1418 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1419 * won't be called in this case).
1420 */
1421 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1422
963221be
AB		 1423 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1424 * make sure there's nothing left there and warn if any is found.
1425 */
1426 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
1427 int i;
1428
1429 for (i = 0; i < IWL_MVM_MAX_SIMULTANEOUS_SCANS; i++) {
1430 if (WARN_ONCE(mvm->scan_uid[i],
1431 "UMAC scan UID %d was not cleaned\n",
1432 mvm->scan_uid[i]))
1433 mvm->scan_uid[i] = 0;
1434 }
1435 }
1436
bc44886d 1437 mvm->ucode_loaded = false;
a0a09243 1438}
bc44886d 1439
a0a09243
LC		 1440static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1441{
1442 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1443
1444 flush_work(&mvm->d0i3_exit_work);
1445 flush_work(&mvm->async_handlers_wk);
d2709ad7 1446 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1447 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1448
1449 mutex_lock(&mvm->mutex);
1450 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1451 mutex_unlock(&mvm->mutex);
1452
1453 /*
1454 * The worker might have been waiting for the mutex, let it run and
1455 * discover that its list is now empty.
1456 */
1457 cancel_work_sync(&mvm->async_handlers_wk);
1458}
1459
fe0f2de3
IP		 1460static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1461{
1462 u16 i;
1463
1464 lockdep_assert_held(&mvm->mutex);
1465
1466 for (i = 0; i < NUM_PHY_CTX; i++)
1467 if (!mvm->phy_ctxts[i].ref)
1468 return &mvm->phy_ctxts[i];
1469
1470 IWL_ERR(mvm, "No available PHY context\n");
1471 return NULL;
1472}
1473
d44c3fe6
AA		 1474static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1475 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1476{
1477 /* FW is in charge of regulatory enforcement */
1478 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1479 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1480 .pwr_restriction = cpu_to_le16(tx_power),
1481 };
1482
a1022927 1483 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1484 sizeof(reduce_txpwr_cmd),
1485 &reduce_txpwr_cmd);
1486}
1487
d44c3fe6
AA		 1488static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1489 s16 tx_power)
1490{
1491 struct iwl_dev_tx_power_cmd cmd = {
1492 .set_mode = 0,
1493 .mac_context_id =
1494 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1495 .pwr_restriction = cpu_to_le16(8 * tx_power),
1496 };
1497
1498 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV))
1499 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1500
1501 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1502 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1503
1504 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1505 sizeof(cmd), &cmd);
1506}
1507
8ca151b5
JB		 1508static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1509 struct ieee80211_vif *vif)
1510{
1511 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1512 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1513 int ret;
1514
aa5e1832
EG		 1515 mvmvif->mvm = mvm;
1516
d40fc489
GG		 1517 /*
1518 * make sure D0i3 exit is completed, otherwise a target access
1519 * during tx queue configuration could be done when still in
1520 * D0i3 state.
1521 */
1522 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1523 if (ret)
1524 return ret;
1525
8ca151b5
JB		 1526 /*
1527 * Not much to do here. The stack will not allow interface
1528 * types or combinations that we didn't advertise, so we
1529 * don't really have to check the types.
1530 */
1531
1532 mutex_lock(&mvm->mutex);
1533
33cef925
JB		 1534 /* make sure that beacon statistics don't go backwards with FW reset */
1535 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1536 mvmvif->beacon_stats.accu_num_beacons +=
1537 mvmvif->beacon_stats.num_beacons;
1538
e89044d7 1539 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1540 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1541 if (ret)
1542 goto out_unlock;
1543
1c2abf72 1544 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1545 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1546 mvm->vif_count++;
ea183d02 1547
8ca151b5
JB		 1548 /*
1549 * The AP binding flow can be done only after the beacon
1550 * template is configured (which happens only in the mac80211
1551 * start_ap() flow), and adding the broadcast station can happen
1552 * only after the binding.
1553 * In addition, since modifying the MAC before adding a bcast
1554 * station is not allowed by the FW, delay the adding of MAC context to
1555 * the point where we can also add the bcast station.
1556 * In short: there's not much we can do at this point, other than
1557 * allocating resources :)
1558 */
5023d966
JB		 1559 if (vif->type == NL80211_IFTYPE_AP ||
1560 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1561 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1562 if (ret) {
1563 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1564 goto out_release;
1565 }
1566
77740cb4 1567 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1568 goto out_unlock;
1569 }
1570
8ca151b5
JB		 1571 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1572 if (ret)
1573 goto out_release;
1574
999609f1 1575 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1576 if (ret)
fd66fc1c 1577 goto out_remove_mac;
8ca151b5 1578
7df15b1e 1579 /* beacon filtering */
a1022927 1580 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1581 if (ret)
1582 goto out_remove_mac;
1583
7df15b1e 1584 if (!mvm->bf_allowed_vif &&
73e5f2c5 1585 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1586 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1587 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1588 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1589 }
1590
8ca151b5
JB		 1591 /*
1592 * P2P_DEVICE interface does not have a channel context assigned to it,
1593 * so a dedicated PHY context is allocated to it and the corresponding
1594 * MAC context is bound to it at this stage.
1595 */
1596 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1597
fe0f2de3
IP		 1598 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1599 if (!mvmvif->phy_ctxt) {
1600 ret = -ENOSPC;
bd3351ba 1601 goto out_free_bf;
fe0f2de3 1602 }
8ca151b5 1603
53a9d61e 1604 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1605 ret = iwl_mvm_binding_add_vif(mvm, vif);
1606 if (ret)
53a9d61e 1607 goto out_unref_phy;
8ca151b5 1608
013290aa 1609 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1610 if (ret)
1611 goto out_unbind;
1612
1613 /* Save a pointer to p2p device vif, so it can later be used to
1614 * update the p2p device MAC when a GO is started/stopped */
1615 mvm->p2p_device_vif = vif;
1616 }
1617
63494374 1618 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1619 goto out_unlock;
1620
1621 out_unbind:
1622 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1623 out_unref_phy:
fe0f2de3 1624 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1625 out_free_bf:
1626 if (mvm->bf_allowed_vif == mvmvif) {
1627 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1628 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1629 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1630 }
8ca151b5
JB		 1631 out_remove_mac:
1632 mvmvif->phy_ctxt = NULL;
1633 iwl_mvm_mac_ctxt_remove(mvm, vif);
1634 out_release:
5ee2b215
AB		 1635 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1636 mvm->vif_count--;
1c2abf72 1637
8ca151b5
JB		 1638 iwl_mvm_mac_ctxt_release(mvm, vif);
1639 out_unlock:
1640 mutex_unlock(&mvm->mutex);
1641
d40fc489
GG		 1642 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1643
8ca151b5
JB		 1644 return ret;
1645}
1646
38a12b5b
JB		 1647static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1648 struct ieee80211_vif *vif)
8ca151b5 1649{
d92b732e 1650 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1651
1652 if (tfd_msk) {
fe92e32a
EG		 1653 /*
1654 * mac80211 first removes all the stations of the vif and
1655 * then removes the vif. When it removes a station it also
1656 * flushes the AMPDU session. So by now, all the AMPDU sessions
1657 * of all the stations of this vif are closed, and the queues
1658 * of these AMPDU sessions are properly closed.
1659 * We still need to take care of the shared queues of the vif.
1660 * Flush them here.
1661 */
8ca151b5
JB		 1662 mutex_lock(&mvm->mutex);
1663 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1664 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1665
1666 /*
1667 * There are transports that buffer a few frames in the host.
1668 * For these, the flush above isn't enough since while we were
1669 * flushing, the transport might have sent more frames to the
1670 * device. To solve this, wait here until the transport is
1671 * empty. Technically, this could have replaced the flush
1672 * above, but flush is much faster than draining. So flush
1673 * first, and drain to make sure we have no frames in the
1674 * transport anymore.
1675 * If a station still had frames on the shared queues, it is
1676 * already marked as draining, so to complete the draining, we
1677 * just need to wait until the transport is empty.
1678 */
1679 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1680 }
1681
1682 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1683 /*
1684 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1685 * We assume here that all the packets sent to the OFFCHANNEL
1686 * queue are sent in ROC session.
1687 */
1688 flush_work(&mvm->roc_done_wk);
1689 } else {
1690 /*
1691 * By now, all the AC queues are empty. The AGG queues are
1692 * empty too. We already got all the Tx responses for all the
1693 * packets in the queues. The drain work can have been
0742a75a 1694 * triggered. Flush it.
8ca151b5
JB		 1695 */
1696 flush_work(&mvm->sta_drained_wk);
1697 }
38a12b5b
JB		 1698}
1699
1700static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1701 struct ieee80211_vif *vif)
1702{
1703 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1704 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1705
1706 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1707
1708 mutex_lock(&mvm->mutex);
1709
7df15b1e
HG		 1710 if (mvm->bf_allowed_vif == mvmvif) {
1711 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1712 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1713 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1714 }
1715
63494374
JB		 1716 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1717
8ca151b5
JB		 1718 /*
1719 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1720 * interface is be handled as part of the stop_ap flow.
8ca151b5 1721 */
5023d966
JB		 1722 if (vif->type == NL80211_IFTYPE_AP ||
1723 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1724#ifdef CONFIG_NL80211_TESTMODE
1725 if (vif == mvm->noa_vif) {
1726 mvm->noa_vif = NULL;
1727 mvm->noa_duration = 0;
1728 }
1729#endif
013290aa 1730 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1731 goto out_release;
1732 }
1733
1734 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1735 mvm->p2p_device_vif = NULL;
013290aa 1736 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1737 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1738 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1739 mvmvif->phy_ctxt = NULL;
1740 }
1741
5ee2b215 1742 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1743 mvm->vif_count--;
1c2abf72 1744
999609f1 1745 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1746 iwl_mvm_mac_ctxt_remove(mvm, vif);
1747
1748out_release:
1749 iwl_mvm_mac_ctxt_release(mvm, vif);
1750 mutex_unlock(&mvm->mutex);
1751}
1752
1753static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1754{
8ca151b5
JB		 1755 return 0;
1756}
1757
e59647ea
EP		 1758struct iwl_mvm_mc_iter_data {
1759 struct iwl_mvm *mvm;
1760 int port_id;
1761};
1762
1763static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1764 struct ieee80211_vif *vif)
1765{
1766 struct iwl_mvm_mc_iter_data *data = _data;
1767 struct iwl_mvm *mvm = data->mvm;
1768 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1769 int ret, len;
1770
1771 /* if we don't have free ports, mcast frames will be dropped */
1772 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1773 return;
1774
1775 if (vif->type != NL80211_IFTYPE_STATION ||
1776 !vif->bss_conf.assoc)
1777 return;
1778
1779 cmd->port_id = data->port_id++;
1780 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1781 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1782
1c4abec0 1783 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1784 if (ret)
1785 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1786}
1787
1788static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1789{
1790 struct iwl_mvm_mc_iter_data iter_data = {
1791 .mvm = mvm,
88f2fd73
MG		 1792 };
1793
e59647ea
EP		 1794 lockdep_assert_held(&mvm->mutex);
1795
1796 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1797 return;
1798
1c4abec0 1799 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1800 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1801 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1802}
1803
e59647ea
EP		 1804static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1805 struct netdev_hw_addr_list *mc_list)
8ca151b5 1806{
e59647ea
EP		 1807 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1808 struct iwl_mcast_filter_cmd *cmd;
1809 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1810 int addr_count;
1811 bool pass_all;
e59647ea
EP		 1812 int len;
1813
f3bd58f4
MS		 1814 addr_count = netdev_hw_addr_list_count(mc_list);
1815 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1816 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1817 if (pass_all)
e59647ea 1818 addr_count = 0;
e59647ea
EP		 1819
1820 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1821 cmd = kzalloc(len, GFP_ATOMIC);
1822 if (!cmd)
1823 return 0;
1824
1825 if (pass_all) {
1826 cmd->pass_all = 1;
1827 return (u64)(unsigned long)cmd;
1828 }
1829
1830 netdev_hw_addr_list_for_each(addr, mc_list) {
1831 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1832 cmd->count, addr->addr);
1833 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1834 addr->addr, ETH_ALEN);
1835 cmd->count++;
1836 }
1837
1838 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1839}
1840
1841static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1842 unsigned int changed_flags,
1843 unsigned int *total_flags,
1844 u64 multicast)
1845{
e59647ea
EP		 1846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1847 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1848
e59647ea 1849 mutex_lock(&mvm->mutex);
51b6b9e0 1850
e59647ea
EP		 1851 /* replace previous configuration */
1852 kfree(mvm->mcast_filter_cmd);
1853 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1854
e59647ea
EP		 1855 if (!cmd)
1856 goto out;
51b6b9e0 1857
e59647ea
EP		 1858 iwl_mvm_recalc_multicast(mvm);
1859out:
1860 mutex_unlock(&mvm->mutex);
1861 *total_flags = 0;
51b6b9e0
EG		 1862}
1863
c87163b9
EP		 1864#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1865struct iwl_bcast_iter_data {
1866 struct iwl_mvm *mvm;
1867 struct iwl_bcast_filter_cmd *cmd;
1868 u8 current_filter;
1869};
1870
1871static void
1872iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1873 const struct iwl_fw_bcast_filter *in_filter,
1874 struct iwl_fw_bcast_filter *out_filter)
1875{
1876 struct iwl_fw_bcast_filter_attr *attr;
1877 int i;
1878
1879 memcpy(out_filter, in_filter, sizeof(*out_filter));
1880
1881 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1882 attr = &out_filter->attrs[i];
1883
1884 if (!attr->mask)
1885 break;
1886
2ee8f021
EP		 1887 switch (attr->reserved1) {
1888 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1889 if (vif->bss_conf.arp_addr_cnt != 1) {
1890 attr->mask = 0;
1891 continue;
1892 }
1893
1894 attr->val = vif->bss_conf.arp_addr_list[0];
1895 break;
1896 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1897 attr->val = *(__be32 *)&vif->addr[2];
1898 break;
1899 default:
1900 break;
1901 }
1902 attr->reserved1 = 0;
c87163b9
EP		 1903 out_filter->num_attrs++;
1904 }
1905}
1906
1907static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1908 struct ieee80211_vif *vif)
1909{
1910 struct iwl_bcast_iter_data *data = _data;
1911 struct iwl_mvm *mvm = data->mvm;
1912 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1913 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1914 struct iwl_fw_bcast_mac *bcast_mac;
1915 int i;
1916
1917 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1918 return;
1919
1920 bcast_mac = &cmd->macs[mvmvif->id];
1921
e48393e8
IP		 1922 /*
1923 * enable filtering only for associated stations, but not for P2P
1924 * Clients
1925 */
1926 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1927 !vif->bss_conf.assoc)
c87163b9
EP		 1928 return;
1929
1930 bcast_mac->default_discard = 1;
1931
1932 /* copy all configured filters */
1933 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1934 /*
1935 * Make sure we don't exceed our filters limit.
1936 * if there is still a valid filter to be configured,
1937 * be on the safe side and just allow bcast for this mac.
1938 */
1939 if (WARN_ON_ONCE(data->current_filter >=
1940 ARRAY_SIZE(cmd->filters))) {
1941 bcast_mac->default_discard = 0;
1942 bcast_mac->attached_filters = 0;
1943 break;
1944 }
1945
1946 iwl_mvm_set_bcast_filter(vif,
1947 &mvm->bcast_filters[i],
1948 &cmd->filters[data->current_filter]);
1949
1950 /* skip current filter if it contains no attributes */
1951 if (!cmd->filters[data->current_filter].num_attrs)
1952 continue;
1953
1954 /* attach the filter to current mac */
1955 bcast_mac->attached_filters |=
1956 cpu_to_le16(BIT(data->current_filter));
1957
1958 data->current_filter++;
1959 }
1960}
1961
de06a59e
EP		 1962bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1963 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1964{
c87163b9
EP		 1965 struct iwl_bcast_iter_data iter_data = {
1966 .mvm = mvm,
de06a59e 1967 .cmd = cmd,
c87163b9
EP		 1968 };
1969
3b8983b1
MS		 1970 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1971 return false;
1972
de06a59e
EP		 1973 memset(cmd, 0, sizeof(*cmd));
1974 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1975 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1976
1977#ifdef CONFIG_IWLWIFI_DEBUGFS
1978 /* use debugfs filters/macs if override is configured */
1979 if (mvm->dbgfs_bcast_filtering.override) {
1980 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1981 sizeof(cmd->filters));
1982 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1983 sizeof(cmd->macs));
1984 return true;
1985 }
1986#endif
c87163b9
EP		 1987
1988 /* if no filters are configured, do nothing */
1989 if (!mvm->bcast_filters)
de06a59e 1990 return false;
c87163b9
EP		 1991
1992 /* configure and attach these filters for each associated sta vif */
1993 ieee80211_iterate_active_interfaces(
1994 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1995 iwl_mvm_bcast_filter_iterator, &iter_data);
1996
de06a59e
EP		 1997 return true;
1998}
1999static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2000 struct ieee80211_vif *vif)
2001{
2002 struct iwl_bcast_filter_cmd cmd;
2003
2004 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2005 return 0;
2006
2007 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2008 return 0;
2009
a1022927 2010 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2011 sizeof(cmd), &cmd);
2012}
2013#else
2014static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2015 struct ieee80211_vif *vif)
2016{
2017 return 0;
2018}
2019#endif
2020
8ca151b5
JB		 2021static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2022 struct ieee80211_vif *vif,
2023 struct ieee80211_bss_conf *bss_conf,
2024 u32 changes)
2025{
2026 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2027 int ret;
2028
6e97b0d2
IP		 2029 /*
2030 * Re-calculate the tsf id, as the master-slave relations depend on the
2031 * beacon interval, which was not known when the station interface was
2032 * added.
2033 */
2034 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2035 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2036
3dfd3a97
JB		 2037 /*
2038 * If we're not associated yet, take the (new) BSSID before associating
2039 * so the firmware knows. If we're already associated, then use the old
2040 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2041 * branch for disassociation below.
2042 */
2043 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2044 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2045
2046 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2047 if (ret)
2048 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2049
3dfd3a97
JB		 2050 /* after sending it once, adopt mac80211 data */
2051 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2052 mvmvif->associated = bss_conf->assoc;
2053
8ca151b5
JB		 2054 if (changes & BSS_CHANGED_ASSOC) {
2055 if (bss_conf->assoc) {
33cef925
JB		 2056 /* clear statistics to get clean beacon counter */
2057 iwl_mvm_request_statistics(mvm, true);
2058 memset(&mvmvif->beacon_stats, 0,
2059 sizeof(mvmvif->beacon_stats));
2060
8ca151b5 2061 /* add quota for this interface */
7754ae79 2062 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2063 if (ret) {
2064 IWL_ERR(mvm, "failed to update quotas\n");
2065 return;
2066 }
016d27e1
JB		 2067
2068 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2069 &mvm->status)) {
2070 /*
2071 * If we're restarting then the firmware will
2072 * obviously have lost synchronisation with
2073 * the AP. It will attempt to synchronise by
2074 * itself, but we can make it more reliable by
2075 * scheduling a session protection time event.
2076 *
2077 * The firmware needs to receive a beacon to
2078 * catch up with synchronisation, use 110% of
2079 * the beacon interval.
2080 *
2081 * Set a large maximum delay to allow for more
2082 * than a single interface.
2083 */
2084 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2085 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2086 5 * dur, false);
016d27e1 2087 }
1f3b0ff8
LE		 2088
2089 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2090 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2091 if (vif->p2p) {
29a90a49 2092 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2093 iwl_mvm_update_smps(mvm, vif,
2094 IWL_MVM_SMPS_REQ_PROT,
2095 IEEE80211_SMPS_DYNAMIC);
2096 }
8ca151b5 2097 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2098 /*
2099 * If update fails - SF might be running in associated
2100 * mode while disassociated - which is forbidden.
2101 */
2102 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2103 "Failed to update SF upon disassociation\n");
2104
8ca151b5
JB		 2105 /* remove AP station now that the MAC is unassoc */
2106 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2107 if (ret)
2108 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2109
2110 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2111 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2112 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2113 /* remove quota for this interface */
7754ae79 2114 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2115 if (ret)
2116 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2117
2118 if (vif->p2p)
2119 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2120
2121 /* this will take the cleared BSSID from bss_conf */
2122 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2123 if (ret)
2124 IWL_ERR(mvm,
2125 "failed to update MAC %pM (clear after unassoc)\n",
2126 vif->addr);
8ca151b5 2127 }
a20fd398 2128
e59647ea 2129 iwl_mvm_recalc_multicast(mvm);
c87163b9 2130 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2131
a20fd398
AO		 2132 /* reset rssi values */
2133 mvmvif->bf_data.ave_beacon_signal = 0;
2134
8e484f0b 2135 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2136 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2137 IEEE80211_SMPS_AUTOMATIC);
989c6505 2138 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2139 /*
2140 * We received a beacon _after_ association so
2141 * remove the session protection.
2142 */
2143 iwl_mvm_remove_time_event(mvm, mvmvif,
2144 &mvmvif->time_event_data);
8ca151b5 2145 }
cc87d322
EH		 2146
2147 if (changes & BSS_CHANGED_BEACON_INFO) {
2148 iwl_mvm_sf_update(mvm, vif, false);
2149 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2150 }
2151
1bc10d3b
JB		 2152 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2153 ret = iwl_mvm_power_update_mac(mvm);
2154 if (ret)
2155 IWL_ERR(mvm, "failed to update power mode\n");
2156 }
2157
88f2fd73
MG		 2158 if (changes & BSS_CHANGED_TXPOWER) {
2159 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2160 bss_conf->txpower);
2161 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2162 }
a20fd398
AO		 2163
2164 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2165 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2166 /* reset cqm events tracking */
2167 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2168 if (mvmvif->bf_data.bf_enabled) {
2169 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2170 if (ret)
2171 IWL_ERR(mvm,
2172 "failed to update CQM thresholds\n");
2173 }
a20fd398 2174 }
2ee8f021
EP		 2175
2176 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2177 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2178 iwl_mvm_configure_bcast_filter(mvm, vif);
2179 }
8ca151b5
JB		 2180}
2181
5023d966
JB		 2182static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2183 struct ieee80211_vif *vif)
8ca151b5
JB		 2184{
2185 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2187 int ret;
2188
576eeee9
EP		 2189 /*
2190 * iwl_mvm_mac_ctxt_add() might read directly from the device
2191 * (the system time), so make sure it is available.
2192 */
2193 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2194 if (ret)
2195 return ret;
2196
8ca151b5
JB		 2197 mutex_lock(&mvm->mutex);
2198
2199 /* Send the beacon template */
2200 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2201 if (ret)
2202 goto out_unlock;
2203
6e97b0d2
IP		 2204 /*
2205 * Re-calculate the tsf id, as the master-slave relations depend on the
2206 * beacon interval, which was not known when the AP interface was added.
2207 */
2208 if (vif->type == NL80211_IFTYPE_AP)
2209 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2210
8ca151b5
JB		 2211 /* Add the mac context */
2212 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2213 if (ret)
2214 goto out_unlock;
2215
2216 /* Perform the binding */
2217 ret = iwl_mvm_binding_add_vif(mvm, vif);
2218 if (ret)
2219 goto out_remove;
2220
8ca151b5
JB		 2221 /* Send the bcast station. At this stage the TBTT and DTIM time events
2222 * are added and applied to the scheduler */
013290aa 2223 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2224 if (ret)
2225 goto out_unbind;
2226
5691e218
IP		 2227 /* must be set before quota calculations */
2228 mvmvif->ap_ibss_active = true;
2229
a11e144e 2230 /* power updated needs to be done before quotas */
999609f1 2231 iwl_mvm_power_update_mac(mvm);
a11e144e 2232
7754ae79 2233 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2234 if (ret)
a11e144e 2235 goto out_quota_failed;
8ca151b5 2236
5023d966 2237 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2238 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2239 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2240
29a90a49
EP		 2241 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2242
8e484f0b 2243 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2244
f697267f
AN		 2245 /* we don't support TDLS during DCM */
2246 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2247 iwl_mvm_teardown_tdls_peers(mvm);
2248
939e4904 2249 goto out_unlock;
8ca151b5 2250
a11e144e 2251out_quota_failed:
999609f1 2252 iwl_mvm_power_update_mac(mvm);
5691e218 2253 mvmvif->ap_ibss_active = false;
013290aa 2254 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2255out_unbind:
2256 iwl_mvm_binding_remove_vif(mvm, vif);
2257out_remove:
2258 iwl_mvm_mac_ctxt_remove(mvm, vif);
2259out_unlock:
2260 mutex_unlock(&mvm->mutex);
576eeee9 2261 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2262 return ret;
2263}
2264
5023d966
JB		 2265static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2266 struct ieee80211_vif *vif)
8ca151b5
JB		 2267{
2268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2269 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2270
38a12b5b
JB		 2271 iwl_mvm_prepare_mac_removal(mvm, vif);
2272
8ca151b5
JB		 2273 mutex_lock(&mvm->mutex);
2274
664322fa 2275 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2276 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2277 iwl_mvm_remove_time_event(mvm, mvmvif,
2278 &mvmvif->time_event_data);
664322fa 2279 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2280 }
664322fa 2281
003e5236
AO		 2282 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2283 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2284 mvm->csa_tx_block_bcn_timeout = 0;
2285 }
2286
5023d966 2287 mvmvif->ap_ibss_active = false;
1c87bbad 2288 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2289
8e484f0b 2290 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2291
29a90a49
EP		 2292 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2293
5023d966 2294 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2295 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2296 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2297
7754ae79 2298 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2299 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2300 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2301
999609f1 2302 iwl_mvm_power_update_mac(mvm);
a11e144e 2303
8ca151b5
JB		 2304 iwl_mvm_mac_ctxt_remove(mvm, vif);
2305
2306 mutex_unlock(&mvm->mutex);
2307}
2308
5023d966
JB		 2309static void
2310iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2311 struct ieee80211_vif *vif,
2312 struct ieee80211_bss_conf *bss_conf,
2313 u32 changes)
8ca151b5 2314{
be2056fc 2315 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2316
be2056fc
IP		 2317 /* Changes will be applied when the AP/IBSS is started */
2318 if (!mvmvif->ap_ibss_active)
2319 return;
2320
863230da 2321 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2322 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2323 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2324 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2325
8ca151b5 2326 /* Need to send a new beacon template to the FW */
863230da
JB		 2327 if (changes & BSS_CHANGED_BEACON &&
2328 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2329 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2330
2331 if (changes & BSS_CHANGED_TXPOWER) {
2332 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2333 bss_conf->txpower);
2334 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2335 }
2336
8ca151b5
JB		 2337}
2338
2339static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2340 struct ieee80211_vif *vif,
2341 struct ieee80211_bss_conf *bss_conf,
2342 u32 changes)
2343{
2344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2345
576eeee9
EP		 2346 /*
2347 * iwl_mvm_bss_info_changed_station() might call
2348 * iwl_mvm_protect_session(), which reads directly from
2349 * the device (the system time), so make sure it is available.
2350 */
2351 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2352 return;
2353
8ca151b5
JB		 2354 mutex_lock(&mvm->mutex);
2355
723f02ed 2356 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2357 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2358
8ca151b5
JB		 2359 switch (vif->type) {
2360 case NL80211_IFTYPE_STATION:
2361 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2362 break;
2363 case NL80211_IFTYPE_AP:
5023d966
JB		 2364 case NL80211_IFTYPE_ADHOC:
2365 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2366 break;
2367 default:
2368 /* shouldn't happen */
2369 WARN_ON_ONCE(1);
2370 }
2371
2372 mutex_unlock(&mvm->mutex);
576eeee9 2373 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2374}
2375
4660dfbb
EP		 2376static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2377 enum iwl_scan_status scan_type)
2378{
2379 int ret;
2380 bool wait_for_handlers = false;
2381
2382 mutex_lock(&mvm->mutex);
2383
2384 if (mvm->scan_status != scan_type) {
2385 ret = 0;
2386 /* make sure there are no pending notifications */
2387 wait_for_handlers = true;
2388 goto out;
2389 }
2390
2391 switch (scan_type) {
2392 case IWL_MVM_SCAN_SCHED:
2393 ret = iwl_mvm_scan_offload_stop(mvm, true);
2394 break;
2395 case IWL_MVM_SCAN_OS:
2396 ret = iwl_mvm_cancel_scan(mvm);
2397 break;
2398 case IWL_MVM_SCAN_NONE:
2399 default:
2400 WARN_ON_ONCE(1);
2401 ret = -EINVAL;
2402 break;
2403 }
2404 if (ret)
2405 goto out;
2406
2407 wait_for_handlers = true;
2408out:
2409 mutex_unlock(&mvm->mutex);
2410
2411 /* make sure we consume the completion notification */
2412 if (wait_for_handlers)
2413 iwl_mvm_wait_for_async_handlers(mvm);
2414
2415 return ret;
2416}
8ca151b5
JB		 2417static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2418 struct ieee80211_vif *vif,
c56ef672 2419 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2420{
2421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 2422 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 2423 int ret;
2424
762533ba
DS		 2425 if (req->n_channels == 0 ||
2426 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2427 return -EINVAL;
2428
d2496221
DS		 2429 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2430 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2431 if (ret)
2432 return ret;
2433 }
4660dfbb 2434
8ca151b5
JB		 2435 mutex_lock(&mvm->mutex);
2436
88931cc9
AN		 2437 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2438 IWL_ERR(mvm, "scan while LAR regdomain is not set\n");
2439 ret = -EBUSY;
2440 goto out;
2441 }
2442
4660dfbb 2443 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 2444 ret = -EBUSY;
519e2026
AN		 2445 goto out;
2446 }
8ca151b5 2447
519e2026
AN		 2448 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2449
b975e55a 2450 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 2451 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
fb98be5e 2452 else
1f940386 2453 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e 2454
519e2026
AN		 2455 if (ret)
2456 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2457out:
8ca151b5 2458 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 2459 return ret;
2460}
2461
2462static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2463 struct ieee80211_vif *vif)
2464{
2465 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2466
2467 mutex_lock(&mvm->mutex);
2468
e7d3abab
LC		 2469 /* Due to a race condition, it's possible that mac80211 asks
2470 * us to stop a hw_scan when it's already stopped. This can
2471 * happen, for instance, if we stopped the scan ourselves,
2472 * called ieee80211_scan_completed() and the userspace called
2473 * cancel scan scan before ieee80211_scan_work() could run.
2474 * To handle that, simply return if the scan is not running.
2475 */
2476 /* FIXME: for now, we ignore this race for UMAC scans, since
2477 * they don't set the scan_status.
2478 */
2479 if ((mvm->scan_status == IWL_MVM_SCAN_OS) ||
2480 (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2481 iwl_mvm_cancel_scan(mvm);
8ca151b5
JB		 2482
2483 mutex_unlock(&mvm->mutex);
2484}
2485
2486static void
2487iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2488 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2489 int num_frames,
2490 enum ieee80211_frame_release_type reason,
2491 bool more_data)
2492{
2493 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2494
3e56eadf 2495 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2496
3e56eadf
JB		 2497 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2498 tids, more_data, false);
2499}
2500
2501static void
2502iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2503 struct ieee80211_sta *sta, u16 tids,
2504 int num_frames,
2505 enum ieee80211_frame_release_type reason,
2506 bool more_data)
2507{
2508 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2509
2510 /* Called when we need to transmit (a) frame(s) from agg queue */
2511
2512 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2513 tids, more_data, true);
8ca151b5
JB		 2514}
2515
2516static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2517 struct ieee80211_vif *vif,
2518 enum sta_notify_cmd cmd,
2519 struct ieee80211_sta *sta)
2520{
2521 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2522 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2523 unsigned long txqs = 0, tids = 0;
3e56eadf 2524 int tid;
8ca151b5 2525
c22b0ff5
EG		 2526 spin_lock_bh(&mvmsta->lock);
2527 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2528 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2529
2530 if (tid_data->state != IWL_AGG_ON &&
2531 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2532 continue;
2533
2534 __set_bit(tid_data->txq_id, &txqs);
2535
2536 if (iwl_mvm_tid_queued(tid_data) == 0)
2537 continue;
2538
2539 __set_bit(tid, &tids);
2540 }
2541
8ca151b5
JB		 2542 switch (cmd) {
2543 case STA_NOTIFY_SLEEP:
e3d4bc8c 2544 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2545 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2546
c22b0ff5 2547 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2548 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2549
2550 if (txqs)
2551 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2552 /*
2553 * The fw updates the STA to be asleep. Tx packets on the Tx
2554 * queues to this station will not be transmitted. The fw will
2555 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2556 */
2557 break;
2558 case STA_NOTIFY_AWAKE:
881acd89 2559 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2560 break;
c22b0ff5
EG		 2561
2562 if (txqs)
2563 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2564 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2565 break;
2566 default:
2567 break;
2568 }
c22b0ff5 2569 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2570}
2571
1ddbbb0c
JB		 2572static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2573 struct ieee80211_vif *vif,
2574 struct ieee80211_sta *sta)
2575{
2576 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2577 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2578
2579 /*
2580 * This is called before mac80211 does RCU synchronisation,
2581 * so here we already invalidate our internal RCU-protected
2582 * station pointer. The rest of the code will thus no longer
2583 * be able to find the station this way, and we don't rely
2584 * on further RCU synchronisation after the sta_state()
2585 * callback deleted the station.
2586 */
2587 mutex_lock(&mvm->mutex);
2588 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2589 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2590 ERR_PTR(-ENOENT));
2591 mutex_unlock(&mvm->mutex);
2592}
2593
bd1ba664
JB		 2594static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2595 const u8 *bssid)
2596{
2597 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2598 return;
2599
2600 if (iwlwifi_mod_params.uapsd_disable) {
2601 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2602 return;
2603 }
2604
2605 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2606}
2607
8ca151b5
JB		 2608static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2609 struct ieee80211_vif *vif,
2610 struct ieee80211_sta *sta,
2611 enum ieee80211_sta_state old_state,
2612 enum ieee80211_sta_state new_state)
2613{
2614 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2615 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2616 int ret;
2617
2618 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2619 sta->addr, old_state, new_state);
2620
2621 /* this would be a mac80211 bug ... but don't crash */
2622 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2623 return -EINVAL;
2624
2625 /* if a STA is being removed, reuse its ID */
2626 flush_work(&mvm->sta_drained_wk);
2627
2628 mutex_lock(&mvm->mutex);
2629 if (old_state == IEEE80211_STA_NOTEXIST &&
2630 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2631 /*
2632 * Firmware bug - it'll crash if the beacon interval is less
2633 * than 16. We can't avoid connecting at all, so refuse the
2634 * station state change, this will cause mac80211 to abandon
2635 * attempts to connect to this AP, and eventually wpa_s will
2636 * blacklist the AP...
2637 */
2638 if (vif->type == NL80211_IFTYPE_STATION &&
2639 vif->bss_conf.beacon_int < 16) {
2640 IWL_ERR(mvm,
2641 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2642 sta->addr, vif->bss_conf.beacon_int);
2643 ret = -EINVAL;
2644 goto out_unlock;
2645 }
cf7b491d
AN		 2646
2647 if (sta->tdls &&
2648 (vif->p2p ||
fa3d07e4
AN		 2649 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2650 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2651 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2652 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2653 ret = -EBUSY;
2654 goto out_unlock;
2655 }
2656
8ca151b5 2657 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2658 if (sta->tdls && ret == 0)
2659 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2660 } else if (old_state == IEEE80211_STA_NONE &&
2661 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2662 /*
2663 * EBS may be disabled due to previous failures reported by FW.
2664 * Reset EBS status here assuming environment has been changed.
2665 */
2666 mvm->last_ebs_successful = true;
bd1ba664 2667 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2668 ret = 0;
2669 } else if (old_state == IEEE80211_STA_AUTH &&
2670 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2671 ret = iwl_mvm_update_sta(mvm, vif, sta);
2672 if (ret == 0)
2673 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2674 mvmvif->phy_ctxt->channel->band,
2675 true);
8ca151b5
JB		 2676 } else if (old_state == IEEE80211_STA_ASSOC &&
2677 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2678
2679 /* we don't support TDLS during DCM */
2680 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2681 iwl_mvm_teardown_tdls_peers(mvm);
2682
7df15b1e 2683 /* enable beacon filtering */
fa7b2e7f 2684 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2685 ret = 0;
2686 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2687 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2688 /* disable beacon filtering */
a1022927 2689 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2690 ret = 0;
2691 } else if (old_state == IEEE80211_STA_ASSOC &&
2692 new_state == IEEE80211_STA_AUTH) {
2693 ret = 0;
2694 } else if (old_state == IEEE80211_STA_AUTH &&
2695 new_state == IEEE80211_STA_NONE) {
2696 ret = 0;
2697 } else if (old_state == IEEE80211_STA_NONE &&
2698 new_state == IEEE80211_STA_NOTEXIST) {
2699 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2700 if (sta->tdls)
2701 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2702 } else {
2703 ret = -EIO;
2704 }
48bc1307 2705 out_unlock:
8ca151b5
JB		 2706 mutex_unlock(&mvm->mutex);
2707
9c126cd6
LK		 2708 if (sta->tdls && ret == 0) {
2709 if (old_state == IEEE80211_STA_NOTEXIST &&
2710 new_state == IEEE80211_STA_NONE)
2711 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2712 else if (old_state == IEEE80211_STA_NONE &&
2713 new_state == IEEE80211_STA_NOTEXIST)
2714 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2715 }
2716
8ca151b5
JB		 2717 return ret;
2718}
2719
2720static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2721{
2722 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2723
2724 mvm->rts_threshold = value;
2725
2726 return 0;
2727}
2728
1f3b0ff8
LE		 2729static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2730 struct ieee80211_vif *vif,
2731 struct ieee80211_sta *sta, u32 changed)
2732{
2733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2734
2735 if (vif->type == NL80211_IFTYPE_STATION &&
2736 changed & IEEE80211_RC_NSS_CHANGED)
2737 iwl_mvm_sf_update(mvm, vif, false);
2738}
2739
8ca151b5
JB		 2740static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2741 struct ieee80211_vif *vif, u16 ac,
2742 const struct ieee80211_tx_queue_params *params)
2743{
2744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2745 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2746
2747 mvmvif->queue_params[ac] = *params;
2748
2749 /*
2750 * No need to update right away, we'll get BSS_CHANGED_QOS
2751 * The exception is P2P_DEVICE interface which needs immediate update.
2752 */
2753 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2754 int ret;
2755
2756 mutex_lock(&mvm->mutex);
3dfd3a97 2757 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2758 mutex_unlock(&mvm->mutex);
2759 return ret;
2760 }
2761 return 0;
2762}
2763
2764static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2765 struct ieee80211_vif *vif)
2766{
2767 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2768 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2769 200 + vif->bss_conf.beacon_int);
2770 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2771 100 + vif->bss_conf.beacon_int);
2772
2773 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2774 return;
2775
576eeee9
EP		 2776 /*
2777 * iwl_mvm_protect_session() reads directly from the device
2778 * (the system time), so make sure it is available.
2779 */
2780 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2781 return;
2782
8ca151b5
JB		 2783 mutex_lock(&mvm->mutex);
2784 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2785 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2786 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2787
2788 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2789}
2790
35a000b7
DS		 2791static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2792 struct ieee80211_vif *vif,
2793 struct cfg80211_sched_scan_request *req,
633e2713 2794 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2795{
2796 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2797 int ret;
2798
d2496221
DS		 2799 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2800 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2801 if (ret)
2802 return ret;
2803 }
4660dfbb 2804
35a000b7
DS		 2805 mutex_lock(&mvm->mutex);
2806
88931cc9
AN		 2807 if (iwl_mvm_is_lar_supported(mvm) && !mvm->lar_regdom_set) {
2808 IWL_ERR(mvm, "sched-scan while LAR regdomain is not set\n");
2809 ret = -EBUSY;
2810 goto out;
2811 }
2812
1f940386 2813 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2814 ret = -EBUSY;
2815 goto out;
2816 }
2817
4660dfbb 2818 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2819 ret = -EBUSY;
2820 goto out;
2821 }
2822
b141c235 2823 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2824 if (ret)
b141c235 2825 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2826
35a000b7
DS		 2827out:
2828 mutex_unlock(&mvm->mutex);
2829 return ret;
2830}
2831
37e3308c
JB		 2832static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2833 struct ieee80211_vif *vif)
35a000b7
DS		 2834{
2835 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2836 int ret;
35a000b7
DS		 2837
2838 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2839
2840 /* Due to a race condition, it's possible that mac80211 asks
2841 * us to stop a sched_scan when it's already stopped. This
2842 * can happen, for instance, if we stopped the scan ourselves,
2843 * called ieee80211_sched_scan_stopped() and the userspace called
2844 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2845 * could run. To handle this, simply return if the scan is
2846 * not running.
2847 */
2848 /* FIXME: for now, we ignore this race for UMAC scans, since
2849 * they don't set the scan_status.
2850 */
2851 if (mvm->scan_status != IWL_MVM_SCAN_SCHED &&
2852 !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2853 mutex_unlock(&mvm->mutex);
2854 return 0;
2855 }
2856
fb98be5e 2857 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2858 mutex_unlock(&mvm->mutex);
33ea27f6 2859 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2860
33ea27f6 2861 return ret;
35a000b7
DS		 2862}
2863
8ca151b5
JB		 2864static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2865 enum set_key_cmd cmd,
2866 struct ieee80211_vif *vif,
2867 struct ieee80211_sta *sta,
2868 struct ieee80211_key_conf *key)
2869{
2870 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2871 int ret;
2872
2873 if (iwlwifi_mod_params.sw_crypto) {
2874 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2875 return -EOPNOTSUPP;
2876 }
2877
2878 switch (key->cipher) {
2879 case WLAN_CIPHER_SUITE_TKIP:
2880 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2881 /* fall-through */
2882 case WLAN_CIPHER_SUITE_CCMP:
2883 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2884 break;
2885 case WLAN_CIPHER_SUITE_AES_CMAC:
2886 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2887 break;
2888 case WLAN_CIPHER_SUITE_WEP40:
2889 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2890 /* For non-client mode, only use WEP keys for TX as we probably
2891 * don't have a station yet anyway and would then have to keep
2892 * track of the keys, linking them to each of the clients/peers
2893 * as they appear. For now, don't do that, for performance WEP
2894 * offload doesn't really matter much, but we need it for some
2895 * other offload features in client mode.
8ca151b5 2896 */
ba3943b0
JB		 2897 if (vif->type != NL80211_IFTYPE_STATION)
2898 return 0;
2899 break;
8ca151b5 2900 default:
e36e5433
MS		 2901 /* currently FW supports only one optional cipher scheme */
2902 if (hw->n_cipher_schemes &&
2903 hw->cipher_schemes->cipher == key->cipher)
2904 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2905 else
2906 return -EOPNOTSUPP;
8ca151b5
JB		 2907 }
2908
2909 mutex_lock(&mvm->mutex);
2910
2911 switch (cmd) {
2912 case SET_KEY:
5023d966
JB		 2913 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2914 vif->type == NL80211_IFTYPE_AP) && !sta) {
2915 /*
2916 * GTK on AP interface is a TX-only key, return 0;
2917 * on IBSS they're per-station and because we're lazy
2918 * we don't support them for RX, so do the same.
2919 */
6caffd4f
JB		 2920 ret = 0;
2921 key->hw_key_idx = STA_KEY_IDX_INVALID;
2922 break;
2923 }
2924
8ca151b5
JB		 2925 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2926 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2927 if (ret) {
2928 IWL_WARN(mvm, "set key failed\n");
2929 /*
2930 * can't add key for RX, but we don't need it
2931 * in the device for TX so still return 0
2932 */
6caffd4f 2933 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2934 ret = 0;
2935 }
2936
2937 break;
2938 case DISABLE_KEY:
6caffd4f
JB		 2939 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2940 ret = 0;
2941 break;
2942 }
2943
8ca151b5
JB		 2944 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2945 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2946 break;
2947 default:
2948 ret = -EINVAL;
2949 }
2950
2951 mutex_unlock(&mvm->mutex);
2952 return ret;
2953}
2954
2955static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2956 struct ieee80211_vif *vif,
2957 struct ieee80211_key_conf *keyconf,
2958 struct ieee80211_sta *sta,
2959 u32 iv32, u16 *phase1key)
2960{
2961 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2962
5023d966
JB		 2963 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2964 return;
2965
8ca151b5
JB		 2966 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2967}
2968
2969
b112889c
AM		 2970static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2971 struct iwl_rx_packet *pkt, void *data)
2972{
2973 struct iwl_mvm *mvm =
2974 container_of(notif_wait, struct iwl_mvm, notif_wait);
2975 struct iwl_hs20_roc_res *resp;
2976 int resp_len = iwl_rx_packet_payload_len(pkt);
2977 struct iwl_mvm_time_event_data *te_data = data;
2978
2979 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2980 return true;
2981
2982 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2983 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2984 return true;
2985 }
2986
2987 resp = (void *)pkt->data;
2988
2989 IWL_DEBUG_TE(mvm,
2990 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2991 resp->status, resp->event_unique_id);
2992
2993 te_data->uid = le32_to_cpu(resp->event_unique_id);
2994 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2995 te_data->uid);
2996
2997 spin_lock_bh(&mvm->time_event_lock);
2998 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2999 spin_unlock_bh(&mvm->time_event_lock);
3000
3001 return true;
3002}
3003
35d3dab5 3004#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3005static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3006 struct ieee80211_channel *channel,
3007 struct ieee80211_vif *vif,
3008 int duration)
3009{
3010 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3011 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3012 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3013 static const u8 time_event_response[] = { HOT_SPOT_CMD };
3014 struct iwl_notification_wait wait_time_event;
3015 struct iwl_hs20_roc_req aux_roc_req = {
3016 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3017 .id_and_color =
3018 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3019 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3020 /* Set the channel info data */
3021 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3022 PHY_BAND_24 : PHY_BAND_5,
3023 .channel_info.channel = channel->hw_value,
3024 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3025 /* Set the time and duration */
3026 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3027 .apply_time_max_delay =
3028 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3029 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3030 };
3031
3032 /* Set the node address */
3033 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3034
a6cc5163
MG		 3035 lockdep_assert_held(&mvm->mutex);
3036
3037 spin_lock_bh(&mvm->time_event_lock);
3038
3039 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3040 spin_unlock_bh(&mvm->time_event_lock);
3041 return -EIO;
3042 }
3043
b112889c
AM		 3044 te_data->vif = vif;
3045 te_data->duration = duration;
3046 te_data->id = HOT_SPOT_CMD;
3047
b112889c
AM		 3048 spin_unlock_bh(&mvm->time_event_lock);
3049
3050 /*
3051 * Use a notification wait, which really just processes the
3052 * command response and doesn't wait for anything, in order
3053 * to be able to process the response and get the UID inside
3054 * the RX path. Using CMD_WANT_SKB doesn't work because it
3055 * stores the buffer and then wakes up this thread, by which
3056 * time another notification (that the time event started)
3057 * might already be processed unsuccessfully.
3058 */
3059 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3060 time_event_response,
3061 ARRAY_SIZE(time_event_response),
3062 iwl_mvm_rx_aux_roc, te_data);
3063
3064 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3065 &aux_roc_req);
3066
3067 if (res) {
3068 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3069 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3070 goto out_clear_te;
3071 }
3072
3073 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3074 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3075 /* should never fail */
3076 WARN_ON_ONCE(res);
3077
3078 if (res) {
3079 out_clear_te:
3080 spin_lock_bh(&mvm->time_event_lock);
3081 iwl_mvm_te_clear_data(mvm, te_data);
3082 spin_unlock_bh(&mvm->time_event_lock);
3083 }
3084
3085 return res;
3086}
3087
8ca151b5
JB		 3088static int iwl_mvm_roc(struct ieee80211_hw *hw,
3089 struct ieee80211_vif *vif,
3090 struct ieee80211_channel *channel,
d339d5ca
IP		 3091 int duration,
3092 enum ieee80211_roc_type type)
8ca151b5
JB		 3093{
3094 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3095 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3096 struct cfg80211_chan_def chandef;
31d385ae
IP		 3097 struct iwl_mvm_phy_ctxt *phy_ctxt;
3098 int ret, i;
3099
3100 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3101 duration, type);
8ca151b5 3102
6ed13164
MG		 3103 flush_work(&mvm->roc_done_wk);
3104
a6cc5163
MG		 3105 mutex_lock(&mvm->mutex);
3106
b112889c
AM		 3107 switch (vif->type) {
3108 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 3109 if (mvm->fw->ucode_capa.capa[0] &
3110 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
3111 /* Use aux roc framework (HS20) */
3112 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3113 vif, duration);
3114 goto out_unlock;
3115 }
3116 IWL_ERR(mvm, "hotspot not supported\n");
3117 ret = -EINVAL;
a6cc5163 3118 goto out_unlock;
b112889c
AM		 3119 case NL80211_IFTYPE_P2P_DEVICE:
3120 /* handle below */
3121 break;
3122 default:
3123 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3124 ret = -EINVAL;
3125 goto out_unlock;
8ca151b5
JB		 3126 }
3127
31d385ae
IP		 3128 for (i = 0; i < NUM_PHY_CTX; i++) {
3129 phy_ctxt = &mvm->phy_ctxts[i];
3130 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3131 continue;
3132
3133 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3134 /*
3135 * Unbind the P2P_DEVICE from the current PHY context,
3136 * and if the PHY context is not used remove it.
3137 */
3138 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3139 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3140 goto out_unlock;
3141
3142 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3143
3144 /* Bind the P2P_DEVICE to the current PHY Context */
3145 mvmvif->phy_ctxt = phy_ctxt;
3146
3147 ret = iwl_mvm_binding_add_vif(mvm, vif);
3148 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3149 goto out_unlock;
3150
3151 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3152 goto schedule_time_event;
3153 }
3154 }
3155
3156 /* Need to update the PHY context only if the ROC channel changed */
3157 if (channel == mvmvif->phy_ctxt->channel)
3158 goto schedule_time_event;
3159
8ca151b5 3160 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3161
31d385ae
IP		 3162 /*
3163 * Change the PHY context configuration as it is currently referenced
3164 * only by the P2P Device MAC
3165 */
3166 if (mvmvif->phy_ctxt->ref == 1) {
3167 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3168 &chandef, 1, 1);
3169 if (ret)
3170 goto out_unlock;
3171 } else {
3172 /*
3173 * The PHY context is shared with other MACs. Need to remove the
3174 * P2P Device from the binding, allocate an new PHY context and
3175 * create a new binding
3176 */
3177 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3178 if (!phy_ctxt) {
3179 ret = -ENOSPC;
3180 goto out_unlock;
3181 }
3182
3183 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3184 1, 1);
3185 if (ret) {
3186 IWL_ERR(mvm, "Failed to change PHY context\n");
3187 goto out_unlock;
3188 }
3189
3190 /* Unbind the P2P_DEVICE from the current PHY context */
3191 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3192 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3193 goto out_unlock;
3194
3195 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3196
3197 /* Bind the P2P_DEVICE to the new allocated PHY context */
3198 mvmvif->phy_ctxt = phy_ctxt;
3199
3200 ret = iwl_mvm_binding_add_vif(mvm, vif);
3201 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3202 goto out_unlock;
3203
3204 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3205 }
3206
3207schedule_time_event:
8ca151b5 3208 /* Schedule the time events */
e635c797 3209 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3210
31d385ae 3211out_unlock:
8ca151b5
JB		 3212 mutex_unlock(&mvm->mutex);
3213 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3214 return ret;
3215}
3216
3217static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3218{
3219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3220
3221 IWL_DEBUG_MAC80211(mvm, "enter\n");
3222
3223 mutex_lock(&mvm->mutex);
bf5da87f 3224 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3225 mutex_unlock(&mvm->mutex);
3226
3227 IWL_DEBUG_MAC80211(mvm, "leave\n");
3228 return 0;
3229}
3230
b08c1d97
LC		 3231static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3232 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3233{
fe0f2de3
IP		 3234 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3235 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3236 int ret;
3237
b08c1d97
LC		 3238 lockdep_assert_held(&mvm->mutex);
3239
53a9d61e 3240 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3241
fe0f2de3
IP		 3242 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3243 if (!phy_ctxt) {
3244 ret = -ENOSPC;
3245 goto out;
3246 }
8ca151b5 3247
dcbc3e1a 3248 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3249 ctx->rx_chains_static,
3250 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3251 if (ret) {
3252 IWL_ERR(mvm, "Failed to add PHY context\n");
3253 goto out;
3254 }
3255
53a9d61e 3256 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3257 *phy_ctxt_id = phy_ctxt->id;
3258out:
b08c1d97
LC		 3259 return ret;
3260}
3261
3262static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3263 struct ieee80211_chanctx_conf *ctx)
3264{
3265 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3266 int ret;
3267
3268 mutex_lock(&mvm->mutex);
3269 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3270 mutex_unlock(&mvm->mutex);
b08c1d97 3271
8ca151b5
JB		 3272 return ret;
3273}
3274
b08c1d97
LC		 3275static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3276 struct ieee80211_chanctx_conf *ctx)
3277{
3278 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3279 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3280
3281 lockdep_assert_held(&mvm->mutex);
3282
3283 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3284}
3285
8ca151b5
JB		 3286static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3287 struct ieee80211_chanctx_conf *ctx)
3288{
3289 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3290
3291 mutex_lock(&mvm->mutex);
b08c1d97 3292 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3293 mutex_unlock(&mvm->mutex);
3294}
3295
3296static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3297 struct ieee80211_chanctx_conf *ctx,
3298 u32 changed)
3299{
3300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3301 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3302 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3303
31d385ae
IP		 3304 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3305 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3306 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3307 IEEE80211_CHANCTX_CHANGE_RADAR |
3308 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3309 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3310 phy_ctxt->ref, changed))
3311 return;
3312
8ca151b5 3313 mutex_lock(&mvm->mutex);
4d66449a 3314 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3315 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3316 ctx->rx_chains_static,
3317 ctx->rx_chains_dynamic);
3318 mutex_unlock(&mvm->mutex);
3319}
3320
b08c1d97
LC		 3321static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3322 struct ieee80211_vif *vif,
f0c97783
LC		 3323 struct ieee80211_chanctx_conf *ctx,
3324 bool switching_chanctx)
8ca151b5 3325{
fe0f2de3
IP		 3326 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3327 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3328 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3329 int ret;
3330
b08c1d97 3331 lockdep_assert_held(&mvm->mutex);
8ca151b5 3332
fe0f2de3 3333 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3334
3335 switch (vif->type) {
3336 case NL80211_IFTYPE_AP:
4741dd04
LC		 3337 /* only needed if we're switching chanctx (i.e. during CSA) */
3338 if (switching_chanctx) {
bd3398e2
AO		 3339 mvmvif->ap_ibss_active = true;
3340 break;
3341 }
5023d966 3342 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3343 /*
3344 * The AP binding flow is handled as part of the start_ap flow
5023d966 3345 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3346 */
3347 ret = 0;
b08c1d97 3348 goto out;
8ca151b5 3349 case NL80211_IFTYPE_STATION:
2533edce 3350 break;
8ca151b5 3351 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3352 /* always disable PS when a monitor interface is active */
3353 mvmvif->ps_disabled = true;
8ca151b5
JB		 3354 break;
3355 default:
3356 ret = -EINVAL;
b08c1d97 3357 goto out;
8ca151b5
JB		 3358 }
3359
3360 ret = iwl_mvm_binding_add_vif(mvm, vif);
3361 if (ret)
b08c1d97 3362 goto out;
8ca151b5
JB		 3363
3364 /*
92d85562
AB		 3365 * Power state must be updated before quotas,
3366 * otherwise fw will complain.
3367 */
999609f1 3368 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3369
3370 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3371 * interfaces. For the other types, the bss_info changed flow
3372 * will handle quota settings.
3373 */
3374 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3375 mvmvif->monitor_active = true;
7754ae79 3376 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3377 if (ret)
3378 goto out_remove_binding;
3379 }
3380
bd3398e2 3381 /* Handle binding during CSA */
a57c688d 3382 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3383 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3384 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3385 }
3386
4741dd04 3387 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3388 u32 duration = 2 * vif->bss_conf.beacon_int;
3389
3390 /* iwl_mvm_protect_session() reads directly from the
3391 * device (the system time), so make sure it is
3392 * available.
3393 */
3394 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3395 if (ret)
3396 goto out_remove_binding;
3397
3398 /* Protect the session to make sure we hear the first
3399 * beacon on the new channel.
3400 */
3401 iwl_mvm_protect_session(mvm, vif, duration, duration,
3402 vif->bss_conf.beacon_int / 2,
3403 true);
3404
3405 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3406
7754ae79 3407 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3408 }
3409
b08c1d97 3410 goto out;
8ca151b5 3411
b08c1d97 3412out_remove_binding:
8ca151b5 3413 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3414 iwl_mvm_power_update_mac(mvm);
b08c1d97 3415out:
8ca151b5
JB		 3416 if (ret)
3417 mvmvif->phy_ctxt = NULL;
3418 return ret;
3419}
b08c1d97
LC		 3420static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3421 struct ieee80211_vif *vif,
3422 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3423{
3424 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3425 int ret;
8ca151b5
JB		 3426
3427 mutex_lock(&mvm->mutex);
f0c97783 3428 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3429 mutex_unlock(&mvm->mutex);
3430
3431 return ret;
3432}
3433
3434static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3435 struct ieee80211_vif *vif,
f0c97783
LC		 3436 struct ieee80211_chanctx_conf *ctx,
3437 bool switching_chanctx)
b08c1d97
LC		 3438{
3439 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3440 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3441
3442 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3443
3444 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3445
8ca151b5 3446 switch (vif->type) {
5023d966 3447 case NL80211_IFTYPE_ADHOC:
b08c1d97 3448 goto out;
8ca151b5 3449 case NL80211_IFTYPE_MONITOR:
1e1391ca 3450 mvmvif->monitor_active = false;
2533edce 3451 mvmvif->ps_disabled = false;
8ca151b5 3452 break;
bd3398e2
AO		 3453 case NL80211_IFTYPE_AP:
3454 /* This part is triggered only during CSA */
4741dd04 3455 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3456 goto out;
bd3398e2 3457
7ef0aab6
AO		 3458 mvmvif->csa_countdown = false;
3459
003e5236
AO		 3460 /* Set CS bit on all the stations */
3461 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3462
3463 /* Save blocked iface, the timeout is set on the next beacon */
3464 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3465
bd3398e2 3466 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3467 break;
3468 case NL80211_IFTYPE_STATION:
3469 if (!switching_chanctx)
3470 break;
3471
3472 disabled_vif = vif;
3473
3dfd3a97 3474 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3475 break;
8ca151b5
JB		 3476 default:
3477 break;
3478 }
3479
7754ae79 3480 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3481 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3482
b08c1d97 3483out:
a11e144e 3484 mvmvif->phy_ctxt = NULL;
999609f1 3485 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3486}
3487
3488static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3489 struct ieee80211_vif *vif,
3490 struct ieee80211_chanctx_conf *ctx)
3491{
3492 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3493
3494 mutex_lock(&mvm->mutex);
f0c97783 3495 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3496 mutex_unlock(&mvm->mutex);
3497}
3498
50cc9574
LC		 3499static int
3500iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3501 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3502{
b08c1d97
LC		 3503 int ret;
3504
b08c1d97 3505 mutex_lock(&mvm->mutex);
f0c97783 3506 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3507 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3508
3509 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3510 if (ret) {
3511 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3512 goto out_reassign;
3513 }
3514
f0c97783
LC		 3515 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3516 true);
b08c1d97
LC		 3517 if (ret) {
3518 IWL_ERR(mvm,
3519 "failed to assign new_ctx during channel switch\n");
3520 goto out_remove;
3521 }
3522
f697267f
AN		 3523 /* we don't support TDLS during DCM - can be caused by channel switch */
3524 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3525 iwl_mvm_teardown_tdls_peers(mvm);
3526
b08c1d97
LC		 3527 goto out;
3528
3529out_remove:
3530 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3531
3532out_reassign:
6fd1fb63 3533 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3534 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3535 goto out_restart;
3536 }
3537
6fd1fb63
LC		 3538 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3539 true)) {
b08c1d97
LC		 3540 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3541 goto out_restart;
3542 }
3543
3544 goto out;
3545
3546out_restart:
3547 /* things keep failing, better restart the hw */
3548 iwl_mvm_nic_restart(mvm, false);
3549
3550out:
3551 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3552
3553 return ret;
3554}
3555
48a256e8
LC		 3556static int
3557iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3558 struct ieee80211_vif_chanctx_switch *vifs)
3559{
3560 int ret;
3561
3562 mutex_lock(&mvm->mutex);
3563 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3564
3565 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3566 true);
3567 if (ret) {
3568 IWL_ERR(mvm,
3569 "failed to assign new_ctx during channel switch\n");
3570 goto out_reassign;
3571 }
3572
3573 goto out;
3574
3575out_reassign:
3576 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3577 true)) {
3578 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3579 goto out_restart;
3580 }
3581
3582 goto out;
3583
3584out_restart:
3585 /* things keep failing, better restart the hw */
3586 iwl_mvm_nic_restart(mvm, false);
3587
3588out:
3589 mutex_unlock(&mvm->mutex);
3590
3591 return ret;
3592}
3593
50cc9574
LC		 3594static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3595 struct ieee80211_vif_chanctx_switch *vifs,
3596 int n_vifs,
3597 enum ieee80211_chanctx_switch_mode mode)
3598{
3599 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3600 int ret;
3601
3602 /* we only support a single-vif right now */
3603 if (n_vifs > 1)
3604 return -EOPNOTSUPP;
3605
3606 switch (mode) {
3607 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3608 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3609 break;
3610 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3611 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3612 break;
3613 default:
3614 ret = -EOPNOTSUPP;
3615 break;
3616 }
3617
b08c1d97
LC		 3618 return ret;
3619}
3620
8ca151b5
JB		 3621static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3622 struct ieee80211_sta *sta,
3623 bool set)
3624{
3625 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3626 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3627
3628 if (!mvm_sta || !mvm_sta->vif) {
3629 IWL_ERR(mvm, "Station is not associated to a vif\n");
3630 return -EINVAL;
3631 }
3632
3633 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3634}
3635
507cadf2
DS		 3636#ifdef CONFIG_NL80211_TESTMODE
3637static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3638 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3639 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3640 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3641};
3642
3643static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3644 struct ieee80211_vif *vif,
3645 void *data, int len)
3646{
3647 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3648 int err;
3649 u32 noa_duration;
3650
3651 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3652 if (err)
3653 return err;
3654
3655 if (!tb[IWL_MVM_TM_ATTR_CMD])
3656 return -EINVAL;
3657
3658 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3659 case IWL_MVM_TM_CMD_SET_NOA:
3660 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3661 !vif->bss_conf.enable_beacon ||
3662 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3663 return -EINVAL;
3664
3665 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3666 if (noa_duration >= vif->bss_conf.beacon_int)
3667 return -EINVAL;
3668
3669 mvm->noa_duration = noa_duration;
3670 mvm->noa_vif = vif;
3671
7754ae79 3672 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3673 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3674 /* must be associated client vif - ignore authorized */
3675 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3676 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3677 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3678 return -EINVAL;
3679
3680 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3681 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3682 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3683 }
3684
3685 return -EOPNOTSUPP;
3686}
3687
3688static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3689 struct ieee80211_vif *vif,
3690 void *data, int len)
3691{
3692 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3693 int err;
3694
3695 mutex_lock(&mvm->mutex);
3696 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3697 mutex_unlock(&mvm->mutex);
3698
3699 return err;
3700}
3701#endif
3702
622e3f9b
LC		 3703static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3704 struct ieee80211_vif *vif,
3705 struct ieee80211_channel_switch *chsw)
3706{
3707 /* By implementing this operation, we prevent mac80211 from
3708 * starting its own channel switch timer, so that we can call
3709 * ieee80211_chswitch_done() ourselves at the right time
3710 * (which is when the absence time event starts).
3711 */
3712
3713 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3714 "dummy channel switch op\n");
3715}
3716
f028905c
LC		 3717static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3718 struct ieee80211_vif *vif,
3719 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3720{
3721 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3722 struct ieee80211_vif *csa_vif;
f6c34820 3723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3724 u32 apply_time;
f028905c 3725 int ret;
bd3398e2
AO		 3726
3727 mutex_lock(&mvm->mutex);
664322fa 3728
81d62d5a
JB		 3729 mvmvif->csa_failed = false;
3730
6b20d774 3731 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3732 chsw->chandef.center_freq1);
6b20d774 3733
21023b1e 3734 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3735
6b20d774
LC		 3736 switch (vif->type) {
3737 case NL80211_IFTYPE_AP:
3738 csa_vif =
3739 rcu_dereference_protected(mvm->csa_vif,
3740 lockdep_is_held(&mvm->mutex));
3741 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3742 "Another CSA is already in progress")) {
3743 ret = -EBUSY;
3744 goto out_unlock;
3745 }
3746
3747 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3748
7ef0aab6
AO		 3749 if (WARN_ONCE(mvmvif->csa_countdown,
3750 "Previous CSA countdown didn't complete")) {
3751 ret = -EBUSY;
3752 goto out_unlock;
3753 }
3754
6b20d774 3755 break;
dc88b4ba 3756 case NL80211_IFTYPE_STATION:
4500e133
LC		 3757 /* Schedule the time event to a bit before beacon 1,
3758 * to make sure we're in the new channel when the
3759 * GO/AP arrives.
3760 */
3761 apply_time = chsw->device_timestamp +
3762 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3763 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3764
3765 if (chsw->block_tx)
3766 iwl_mvm_csa_client_absent(mvm, vif);
3767
4500e133 3768 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3769 apply_time);
c6e0a3e0
LC		 3770 if (mvmvif->bf_data.bf_enabled) {
3771 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3772 if (ret)
3773 goto out_unlock;
3774 }
3775
dc88b4ba 3776 break;
6b20d774
LC		 3777 default:
3778 break;
3779 }
bd3398e2 3780
f6c34820
LC		 3781 mvmvif->ps_disabled = true;
3782
3783 ret = iwl_mvm_power_update_ps(mvm);
3784 if (ret)
3785 goto out_unlock;
f028905c 3786
e198f5e7
AN		 3787 /* we won't be on this channel any longer */
3788 iwl_mvm_teardown_tdls_peers(mvm);
3789
bd3398e2
AO		 3790out_unlock:
3791 mutex_unlock(&mvm->mutex);
f028905c
LC		 3792
3793 return ret;
bd3398e2
AO		 3794}
3795
f6c34820
LC		 3796static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3797 struct ieee80211_vif *vif)
3798{
3799 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3800 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3801 int ret;
3802
3803 mutex_lock(&mvm->mutex);
3804
81d62d5a
JB		 3805 if (mvmvif->csa_failed) {
3806 mvmvif->csa_failed = false;
3807 ret = -EIO;
3808 goto out_unlock;
3809 }
3810
a57c688d
LC		 3811 if (vif->type == NL80211_IFTYPE_STATION) {
3812 struct iwl_mvm_sta *mvmsta;
3813
3814 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3815 mvmvif->ap_sta_id);
3816
3817 if (WARN_ON(!mvmsta)) {
3818 ret = -EIO;
3819 goto out_unlock;
3820 }
3821
3822 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3823
3824 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3825
3826 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3827 if (ret)
3828 goto out_unlock;
686e7fe1
LC		 3829
3830 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3831 }
3832
f6c34820
LC		 3833 mvmvif->ps_disabled = false;
3834
3835 ret = iwl_mvm_power_update_ps(mvm);
3836
a57c688d 3837out_unlock:
f6c34820
LC		 3838 mutex_unlock(&mvm->mutex);
3839
3840 return ret;
3841}
3842
c5b0e7c0
EG		 3843static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3844 struct ieee80211_vif *vif, u32 queues, bool drop)
3845{
3846 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3847 struct iwl_mvm_vif *mvmvif;
3848 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3849 struct ieee80211_sta *sta;
3850 int i;
3851 u32 msk = 0;
c5b0e7c0
EG		 3852
3853 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3854 return;
3855
3856 mutex_lock(&mvm->mutex);
3857 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3858
a0f6bf2a
AN		 3859 /* flush the AP-station and all TDLS peers */
3860 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3861 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3862 lockdep_is_held(&mvm->mutex));
3863 if (IS_ERR_OR_NULL(sta))
3864 continue;
3865
3866 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3867 if (mvmsta->vif != vif)
3868 continue;
3869
3870 /* make sure only TDLS peers or the AP are flushed */
3871 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3872
3873 msk |= mvmsta->tfd_queue_msk;
480acbce 3874 }
c5b0e7c0 3875
6d440b25
EG		 3876 if (drop) {
3877 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3878 IWL_ERR(mvm, "flush request fail\n");
3879 mutex_unlock(&mvm->mutex);
3880 } else {
3881 mutex_unlock(&mvm->mutex);
4e6c48e0 3882
6d440b25
EG		 3883 /* this can take a while, and we may need/want other operations
3884 * to succeed while doing this, so do it without the mutex held
3885 */
3886 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3887 }
c5b0e7c0
EG		 3888}
3889
91a8bcde
JB		 3890static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3891 struct survey_info *survey)
3892{
3893 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3894 int ret;
3895
3896 memset(survey, 0, sizeof(*survey));
3897
3898 /* only support global statistics right now */
3899 if (idx != 0)
3900 return -ENOENT;
3901
3902 if (!(mvm->fw->ucode_capa.capa[0] &
3903 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3904 return -ENOENT;
3905
3906 mutex_lock(&mvm->mutex);
3907
3908 if (mvm->ucode_loaded) {
33cef925 3909 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3910 if (ret)
3911 goto out;
3912 }
3913
3914 survey->filled = SURVEY_INFO_TIME |
3915 SURVEY_INFO_TIME_RX |
3916 SURVEY_INFO_TIME_TX |
3917 SURVEY_INFO_TIME_SCAN;
3918 survey->time = mvm->accu_radio_stats.on_time_rf +
3919 mvm->radio_stats.on_time_rf;
3920 do_div(survey->time, USEC_PER_MSEC);
3921
3922 survey->time_rx = mvm->accu_radio_stats.rx_time +
3923 mvm->radio_stats.rx_time;
3924 do_div(survey->time_rx, USEC_PER_MSEC);
3925
3926 survey->time_tx = mvm->accu_radio_stats.tx_time +
3927 mvm->radio_stats.tx_time;
3928 do_div(survey->time_tx, USEC_PER_MSEC);
3929
3930 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3931 mvm->radio_stats.on_time_scan;
3932 do_div(survey->time_scan, USEC_PER_MSEC);
3933
10a7c028 3934 ret = 0;
91a8bcde
JB		 3935 out:
3936 mutex_unlock(&mvm->mutex);
3937 return ret;
3938}
3939
33cef925
JB		 3940static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3941 struct ieee80211_vif *vif,
3942 struct ieee80211_sta *sta,
3943 struct station_info *sinfo)
3944{
3945 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3946 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3947 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3948
3949 if (!(mvm->fw->ucode_capa.capa[0] &
3950 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3951 return;
3952
3953 /* if beacon filtering isn't on mac80211 does it anyway */
3954 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3955 return;
3956
3957 if (!vif->bss_conf.assoc)
3958 return;
3959
3960 mutex_lock(&mvm->mutex);
3961
3962 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3963 goto unlock;
3964
3965 if (iwl_mvm_request_statistics(mvm, false))
3966 goto unlock;
3967
3968 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3969 mvmvif->beacon_stats.accu_num_beacons;
3970 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3971 if (mvmvif->beacon_stats.avg_signal) {
3972 /* firmware only reports a value after RXing a few beacons */
3973 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3974 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3975 }
3976 unlock:
3977 mutex_unlock(&mvm->mutex);
3978}
3979
d42f5350
EG		 3980static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3981 struct ieee80211_vif *vif,
3982 const struct ieee80211_event *event)
3983{
5d4f929e 3984#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3985 do { \
3986 if ((_cnt) && --(_cnt)) \
3987 break; \
5d4f929e 3988 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3989 } while (0)
3990
3991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3992 struct iwl_fw_dbg_trigger_tlv *trig;
3993 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3994
3995 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3996 return;
3997
3998 if (event->u.mlme.status == MLME_SUCCESS)
3999 return;
4000
4001 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4002 trig_mlme = (void *)trig->data;
4003 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4004 return;
4005
d42f5350
EG		 4006 if (event->u.mlme.data == ASSOC_EVENT) {
4007 if (event->u.mlme.status == MLME_DENIED)
4008 CHECK_MLME_TRIGGER(mvm, trig, buf,
4009 trig_mlme->stop_assoc_denied,
4010 "DENIED ASSOC: reason %d",
4011 event->u.mlme.reason);
4012 else if (event->u.mlme.status == MLME_TIMEOUT)
4013 CHECK_MLME_TRIGGER(mvm, trig, buf,
4014 trig_mlme->stop_assoc_timeout,
4015 "ASSOC TIMEOUT");
4016 } else if (event->u.mlme.data == AUTH_EVENT) {
4017 if (event->u.mlme.status == MLME_DENIED)
4018 CHECK_MLME_TRIGGER(mvm, trig, buf,
4019 trig_mlme->stop_auth_denied,
4020 "DENIED AUTH: reason %d",
4021 event->u.mlme.reason);
4022 else if (event->u.mlme.status == MLME_TIMEOUT)
4023 CHECK_MLME_TRIGGER(mvm, trig, buf,
4024 trig_mlme->stop_auth_timeout,
4025 "AUTH TIMEOUT");
4026 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4027 CHECK_MLME_TRIGGER(mvm, trig, buf,
4028 trig_mlme->stop_rx_deauth,
4029 "DEAUTH RX %d", event->u.mlme.reason);
4030 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4031 CHECK_MLME_TRIGGER(mvm, trig, buf,
4032 trig_mlme->stop_tx_deauth,
4033 "DEAUTH TX %d", event->u.mlme.reason);
4034 }
4035#undef CHECK_MLME_TRIGGER
4036}
4037
e5209263 4038const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4039 .tx = iwl_mvm_mac_tx,
4040 .ampdu_action = iwl_mvm_mac_ampdu_action,
4041 .start = iwl_mvm_mac_start,
cf2c92d8 4042 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4043 .stop = iwl_mvm_mac_stop,
4044 .add_interface = iwl_mvm_mac_add_interface,
4045 .remove_interface = iwl_mvm_mac_remove_interface,
4046 .config = iwl_mvm_mac_config,
e59647ea 4047 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4048 .configure_filter = iwl_mvm_configure_filter,
4049 .bss_info_changed = iwl_mvm_bss_info_changed,
4050 .hw_scan = iwl_mvm_mac_hw_scan,
4051 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4052 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4053 .sta_state = iwl_mvm_mac_sta_state,
4054 .sta_notify = iwl_mvm_mac_sta_notify,
4055 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4056 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4057 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4058 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4059 .conf_tx = iwl_mvm_mac_conf_tx,
4060 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4061 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4062 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4063 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4064 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4065 .set_key = iwl_mvm_mac_set_key,
4066 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4067 .remain_on_channel = iwl_mvm_roc,
4068 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4069 .add_chanctx = iwl_mvm_add_chanctx,
4070 .remove_chanctx = iwl_mvm_remove_chanctx,
4071 .change_chanctx = iwl_mvm_change_chanctx,
4072 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4073 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4074 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4075
5023d966
JB		 4076 .start_ap = iwl_mvm_start_ap_ibss,
4077 .stop_ap = iwl_mvm_stop_ap_ibss,
4078 .join_ibss = iwl_mvm_start_ap_ibss,
4079 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4080
4081 .set_tim = iwl_mvm_set_tim,
4082
622e3f9b 4083 .channel_switch = iwl_mvm_channel_switch,
f028905c 4084 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4085 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4086
1d3c3f63
AN		 4087 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4088 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4089 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4090
d42f5350
EG		 4091 .event_callback = iwl_mvm_mac_event_callback,
4092
507cadf2
DS		 4093 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4094
8ca151b5
JB		 4095#ifdef CONFIG_PM_SLEEP
4096 /* look at d3.c */
4097 .suspend = iwl_mvm_suspend,
4098 .resume = iwl_mvm_resume,
4099 .set_wakeup = iwl_mvm_set_wakeup,
4100 .set_rekey_data = iwl_mvm_set_rekey_data,
4101#if IS_ENABLED(CONFIG_IPV6)
4102 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4103#endif
4104 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4105#endif
91a8bcde 4106 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4107 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4108};
Ubuntu Artful kernel mirror