projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
iwlwifi: mvm: make UMAC scans use the stopping scan status
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
8ca151b5 83#include "iwl-phy-db.h"
507cadf2 84#include "testmode.h"
655e6d6d
EG		 85#include "iwl-fw-error-dump.h"
86#include "iwl-prph.h"
363039be 87#include "iwl-csr.h"
88931cc9 88#include "iwl-nvm-parse.h"
8ca151b5
JB		 89
90static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
91 {
92 .max = 1,
8eb38710 93 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 94 },
3c15a0fb
JB		 95 {
96 .max = 1,
8eb38710
IP		 97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 99 BIT(NL80211_IFTYPE_P2P_GO),
100 },
101 {
102 .max = 1,
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
104 },
8ca151b5
JB		 105};
106
107static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
108 {
2624a5ca 109 .num_different_channels = 2,
8ca151b5
JB		 110 .max_interfaces = 3,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
113 },
114};
115
f0c2646a
JB		 116#ifdef CONFIG_PM_SLEEP
117static const struct nl80211_wowlan_tcp_data_token_feature
118iwl_mvm_wowlan_tcp_token_feature = {
119 .min_len = 0,
120 .max_len = 255,
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
122};
123
124static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
135 .seq = true,
136};
137#endif
138
77736923 139#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 140/*
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
147 * be skipped.
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
150 */
151enum {
152 BC_FILTER_MAGIC_NONE = 0,
153 BC_FILTER_MAGIC_IP,
154 BC_FILTER_MAGIC_MAC,
155};
156
77736923
EP		 157static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
158 {
159 /* arp */
160 .discard = 0,
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
162 .attrs = {
163 {
164 /* frame type - arp, hw type - ethernet */
165 .offset_type =
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
170 },
2ee8f021
EP		 171 {
172 /* arp dest ip */
173 .offset_type =
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
178 ETH_ALEN,
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
182 },
183 },
184 },
185 {
186 /* dhcp offer bcast */
187 .discard = 0,
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
189 .attrs = {
190 {
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
196 },
197 {
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
200 .offset = 38,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
204 },
77736923
EP		 205 },
206 },
207 /* last filter must be empty */
208 {},
209};
210#endif
211
7498cf4c
EP		 212void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
213{
7bb426ea 214 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 215 return;
216
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 221 iwl_trans_ref(mvm->trans);
222}
223
224void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
225{
7bb426ea 226 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 227 return;
228
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 233 iwl_trans_unref(mvm->trans);
234}
235
576eeee9
EP		 236static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
7498cf4c 238{
576eeee9 239 int i, j;
7498cf4c 240
7bb426ea 241 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 242 return;
243
576eeee9
EP		 244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 247 continue;
248
576eeee9
EP		 249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
250 i, mvm->refs[i]);
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
253 mvm->refs[i] = 0;
7498cf4c 254 }
576eeee9 255 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 256}
257
f4cf8680
EP		 258bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
259{
260 int i;
261 bool taken = false;
262
263 if (!iwl_mvm_is_d0i3_supported(mvm))
264 return true;
265
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
268 if (mvm->refs[i]) {
269 taken = true;
270 break;
271 }
272 }
273 spin_unlock_bh(&mvm->refs_lock);
274
275 return taken;
276}
277
576eeee9 278int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 279{
280 iwl_mvm_ref(mvm, ref_type);
281
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
284 HZ)) {
285 WARN_ON_ONCE(1);
286 iwl_mvm_unref(mvm, ref_type);
287 return -EIO;
288 }
289
290 return 0;
291}
292
fe0f2de3
IP		 293static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
294{
295 int i;
296
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
301 }
302}
303
88931cc9 304struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 305 const char *alpha2,
47c8b154
JD		 306 enum iwl_mcc_source src_id,
307 bool *changed)
88931cc9
AN		 308{
309 struct ieee80211_regdomain *regd = NULL;
310 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
312 struct iwl_mcc_update_resp *resp;
313
314 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
315
8ba2d7a1 316 lockdep_assert_held(&mvm->mutex);
88931cc9 317
8ba2d7a1 318 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 319 if (IS_ERR_OR_NULL(resp)) {
320 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 321 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 322 goto out;
88931cc9
AN		 323 }
324
47c8b154
JD		 325 if (changed)
326 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
327
162ee3c9 328 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 329 __le32_to_cpu(resp->n_channels),
330 resp->channels,
331 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 332 /* Store the return source id */
333 src_id = resp->source_id;
88931cc9
AN		 334 kfree(resp);
335 if (IS_ERR_OR_NULL(regd)) {
336 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 337 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 338 goto out;
88931cc9
AN		 339 }
340
8ba2d7a1
EH		 341 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 343 mvm->lar_regdom_set = true;
8ba2d7a1 344 mvm->mcc_src = src_id;
88931cc9 345
8ba2d7a1 346out:
88931cc9
AN		 347 return regd;
348}
349
47c8b154
JD		 350void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
351{
352 bool changed;
353 struct ieee80211_regdomain *regd;
354
355 if (!iwl_mvm_is_lar_supported(mvm))
356 return;
357
358 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
359 if (!IS_ERR_OR_NULL(regd)) {
360 /* only update the regulatory core if changed */
361 if (changed)
362 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
363
364 kfree(regd);
365 }
366}
367
368struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
369 bool *changed)
8ba2d7a1
EH		 370{
371 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm) ?
373 MCC_SOURCE_GET_CURRENT :
47c8b154 374 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 375}
376
377int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
378{
379 enum iwl_mcc_source used_src;
380 struct ieee80211_regdomain *regd;
b6e160ab
AN		 381 int ret;
382 bool changed;
8ba2d7a1
EH		 383 const struct ieee80211_regdomain *r =
384 rtnl_dereference(mvm->hw->wiphy->regd);
385
386 if (!r)
b6e160ab 387 return -ENOENT;
8ba2d7a1
EH		 388
389 /* save the last source in case we overwrite it below */
390 used_src = mvm->mcc_src;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
392 /* Notify the firmware we support wifi location updates */
47c8b154 393 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 394 if (!IS_ERR_OR_NULL(regd))
395 kfree(regd);
396 }
397
398 /* Now set our last stored MCC and source */
b6e160ab
AN		 399 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
400 &changed);
8ba2d7a1
EH		 401 if (IS_ERR_OR_NULL(regd))
402 return -EIO;
403
b6e160ab
AN		 404 /* update cfg80211 if the regdomain was changed */
405 if (changed)
406 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
407 else
408 ret = 0;
8ba2d7a1 409
b6e160ab
AN		 410 kfree(regd);
411 return ret;
8ba2d7a1
EH		 412}
413
8ca151b5
JB		 414int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
415{
416 struct ieee80211_hw *hw = mvm->hw;
831e85f3 417 int num_mac, ret, i;
8ca151b5
JB		 418
419 /* Tell mac80211 our characteristics */
420 hw->flags = IEEE80211_HW_SIGNAL_DBM |
421 IEEE80211_HW_SPECTRUM_MGMT |
422 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
423 IEEE80211_HW_QUEUE_CONTROL |
424 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 425 IEEE80211_HW_SUPPORTS_PS |
426 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 427 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 428 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 429 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 430 IEEE80211_HW_CHANCTX_STA_CSA |
431 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 432
19e737c9 433 hw->queues = mvm->first_agg_queue;
398e8c6c 434 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 435 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
436 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 437 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
438 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 439 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 440 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
441 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 442
443 /*
444 * Enable 11w if advertised by firmware and software crypto
445 * is not enabled (as the firmware will interpret some mgmt
446 * packets, so enabling it with software crypto isn't safe)
447 */
448 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
449 !iwlwifi_mod_params.sw_crypto)
450 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
451
1f940386
LC		 452 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
453 hw->wiphy->features |=
454 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 455 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
456 NL80211_FEATURE_ND_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
999d2568 509 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 510
8ca151b5
JB		 511 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
512
c7d42480 513 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 514 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
515 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
516
517 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
518 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
519 else
520 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
521
8ca151b5
JB		 522 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
523 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
524 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 525 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 526 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
527 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
528
c9faccc9
ES		 529 if ((mvm->fw->ucode_capa.capa[0] &
530 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
531 (mvm->fw->ucode_capa.api[0] &
532 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 533 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
534 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
535 }
536
8ca151b5
JB		 537 hw->wiphy->hw_version = mvm->trans->hw_id;
538
ade50652 539 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 540 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
541 else
542 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
543
9954b37c
EG		 544 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
545 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
546 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
547 /* we create the 802.11 header and zero length SSID IE. */
548 hw->wiphy->max_sched_scan_ie_len =
549 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 550
8ca151b5 551 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 552 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 553 NL80211_FEATURE_P2P_GO_OPPPS |
554 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 555 NL80211_FEATURE_STATIC_SMPS |
556 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 557
f1daa00e
AO		 558 if (mvm->fw->ucode_capa.capa[0] &
559 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
560 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 561 if (mvm->fw->ucode_capa.capa[0] &
562 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
563 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 564
73897bd1
AO		 565 if (mvm->fw->ucode_capa.capa[0] &
566 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
567 hw->wiphy->features |=
568 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
569
570 if (mvm->fw->ucode_capa.capa[0] &
571 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
572 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
573
8ca151b5
JB		 574 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
575
e36e5433 576 /* currently FW API supports only one optional cipher scheme */
9ddca860 577 if (mvm->fw->cs[0].cipher) {
e36e5433 578 mvm->hw->n_cipher_schemes = 1;
9ddca860 579 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 580 }
581
8ca151b5 582#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 583 if (iwl_mvm_is_d0i3_supported(mvm) &&
584 device_can_wakeup(mvm->trans->dev)) {
585 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
586 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 587 }
588
589 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 590 mvm->trans->ops->d3_suspend &&
591 mvm->trans->ops->d3_resume &&
592 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 593 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
594 WIPHY_WOWLAN_DISCONNECT |
595 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
596 WIPHY_WOWLAN_RFKILL_RELEASE |
597 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 598 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 599 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
600 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
601 WIPHY_WOWLAN_4WAY_HANDSHAKE;
602
603 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
604 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
605 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 606 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 607 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
608 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 609 }
610#endif
611
77736923
EP		 612#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
613 /* assign default bcast filtering configuration */
614 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
615#endif
616
8ca151b5
JB		 617 ret = iwl_mvm_leds_init(mvm);
618 if (ret)
619 return ret;
620
d8f1c515
AN		 621 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
622 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
623 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
624 }
625
1d3c3f63
AN		 626 if (mvm->fw->ucode_capa.capa[0] &
627 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
628 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
629 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
630 }
631
b7327d89
EG		 632 ret = ieee80211_register_hw(mvm->hw);
633 if (ret)
634 iwl_mvm_leds_exit(mvm);
635
636 return ret;
8ca151b5
JB		 637}
638
b2492501
AN		 639static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
640 struct ieee80211_sta *sta,
641 struct sk_buff *skb)
642{
643 struct iwl_mvm_sta *mvmsta;
644 bool defer = false;
645
646 /*
647 * double check the IN_D0I3 flag both before and after
648 * taking the spinlock, in order to prevent taking
649 * the spinlock when not needed.
650 */
651 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
652 return false;
653
654 spin_lock(&mvm->d0i3_tx_lock);
655 /*
656 * testing the flag again ensures the skb dequeue
657 * loop (on d0i3 exit) hasn't run yet.
658 */
659 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
660 goto out;
661
662 mvmsta = iwl_mvm_sta_from_mac80211(sta);
663 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
664 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
665 goto out;
666
667 __skb_queue_tail(&mvm->d0i3_tx, skb);
668 ieee80211_stop_queues(mvm->hw);
669
670 /* trigger wakeup */
671 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
672 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
673
674 defer = true;
675out:
676 spin_unlock(&mvm->d0i3_tx_lock);
677 return defer;
678}
679
8ca151b5
JB		 680static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
681 struct ieee80211_tx_control *control,
682 struct sk_buff *skb)
683{
684 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 685 struct ieee80211_sta *sta = control->sta;
686 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
687 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 688
9ee718aa
EL		 689 if (iwl_mvm_is_radio_killed(mvm)) {
690 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 691 goto drop;
692 }
693
398e8c6c 694 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 695 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
696 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 697 goto drop;
698
3e56eadf
JB		 699 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
700 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
701 ieee80211_is_mgmt(hdr->frame_control) &&
702 !ieee80211_is_deauth(hdr->frame_control) &&
703 !ieee80211_is_disassoc(hdr->frame_control) &&
704 !ieee80211_is_action(hdr->frame_control)))
705 sta = NULL;
706
707 if (sta) {
b2492501
AN		 708 if (iwl_mvm_defer_tx(mvm, sta, skb))
709 return;
3e56eadf 710 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 711 goto drop;
712 return;
713 }
714
715 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
716 goto drop;
717 return;
718 drop:
719 ieee80211_free_txskb(hw, skb);
720}
721
205e2210
EG		 722static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
723{
724 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
725 return false;
726 return true;
727}
728
729static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
730{
731 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
732 return false;
733 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
734 return true;
735
736 /* enabled by default */
737 return true;
738}
739
8ca151b5
JB		 740static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
741 struct ieee80211_vif *vif,
742 enum ieee80211_ampdu_mlme_action action,
743 struct ieee80211_sta *sta, u16 tid,
744 u16 *ssn, u8 buf_size)
745{
746 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
747 int ret;
b2492501 748 bool tx_agg_ref = false;
8ca151b5
JB		 749
750 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
751 sta->addr, tid, action);
752
753 if (!(mvm->nvm_data->sku_cap_11n_enable))
754 return -EACCES;
755
b2492501 756 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 757 switch (action) {
758 case IEEE80211_AMPDU_TX_START:
759 case IEEE80211_AMPDU_TX_STOP_CONT:
760 case IEEE80211_AMPDU_TX_STOP_FLUSH:
761 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
762 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 763 /*
9256c205
EP		 764 * for tx start, wait synchronously until D0i3 exit to
765 * get the correct sequence number for the tid.
766 * additionally, some other ampdu actions use direct
767 * target access, which is not handled automatically
768 * by the trans layer (unlike commands), so wait for
769 * d0i3 exit in these cases as well.
b2492501 770 */
d40fc489
GG		 771 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
772 if (ret)
773 return ret;
774
775 tx_agg_ref = true;
9256c205
EP		 776 break;
777 default:
778 break;
b2492501
AN		 779 }
780
8ca151b5
JB		 781 mutex_lock(&mvm->mutex);
782
783 switch (action) {
784 case IEEE80211_AMPDU_RX_START:
205e2210 785 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 786 ret = -EINVAL;
787 break;
788 }
789 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
790 break;
791 case IEEE80211_AMPDU_RX_STOP:
792 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
793 break;
794 case IEEE80211_AMPDU_TX_START:
205e2210 795 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 796 ret = -EINVAL;
797 break;
798 }
8ca151b5
JB		 799 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
800 break;
801 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 802 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
803 break;
8ca151b5
JB		 804 case IEEE80211_AMPDU_TX_STOP_FLUSH:
805 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 806 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 807 break;
808 case IEEE80211_AMPDU_TX_OPERATIONAL:
809 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
810 break;
811 default:
812 WARN_ON_ONCE(1);
813 ret = -EINVAL;
814 break;
815 }
816 mutex_unlock(&mvm->mutex);
817
b2492501
AN		 818 /*
819 * If the tid is marked as started, we won't use it for offloaded
820 * traffic on the next D0i3 entry. It's safe to unref.
821 */
822 if (tx_agg_ref)
823 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
824
8ca151b5
JB		 825 return ret;
826}
827
828static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
829 struct ieee80211_vif *vif)
830{
831 struct iwl_mvm *mvm = data;
832 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
833
834 mvmvif->uploaded = false;
835 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
836
8ca151b5
JB		 837 spin_lock_bh(&mvm->time_event_lock);
838 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
839 spin_unlock_bh(&mvm->time_event_lock);
840
fe0f2de3 841 mvmvif->phy_ctxt = NULL;
8a275bad 842 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 843}
844
aadede6e
JB		 845static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
846 const void *data, size_t datalen)
847{
848 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
849 ssize_t bytes_read;
850 ssize_t bytes_read_trans;
851
852 if (offset < dump_ptrs->op_mode_len) {
853 bytes_read = min_t(ssize_t, count,
854 dump_ptrs->op_mode_len - offset);
855 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
856 bytes_read);
857 offset += bytes_read;
858 count -= bytes_read;
859
860 if (count == 0)
861 return bytes_read;
862 } else {
863 bytes_read = 0;
864 }
865
866 if (!dump_ptrs->trans_ptr)
867 return bytes_read;
868
869 offset -= dump_ptrs->op_mode_len;
870 bytes_read_trans = min_t(ssize_t, count,
871 dump_ptrs->trans_ptr->len - offset);
872 memcpy(buffer + bytes_read,
873 (u8 *)dump_ptrs->trans_ptr->data + offset,
874 bytes_read_trans);
875
876 return bytes_read + bytes_read_trans;
877}
878
879static void iwl_mvm_free_coredump(const void *data)
880{
881 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
882
883 vfree(fw_error_dump->op_mode_ptr);
884 vfree(fw_error_dump->trans_ptr);
885 kfree(fw_error_dump);
886}
887
04fd2c28
LK		 888static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
889 struct iwl_fw_error_dump_data **dump_data)
890{
891 struct iwl_fw_error_dump_fifo *fifo_hdr;
892 u32 *fifo_data;
893 u32 fifo_len;
894 unsigned long flags;
895 int i, j;
896
897 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
898 return;
899
900 /* Pull RXF data from all RXFs */
901 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
902 /*
903 * Keep aside the additional offset that might be needed for
904 * next RXF
905 */
906 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
907
908 fifo_hdr = (void *)(*dump_data)->data;
909 fifo_data = (void *)fifo_hdr->data;
910 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
911
912 /* No need to try to read the data if the length is 0 */
913 if (fifo_len == 0)
914 continue;
915
916 /* Add a TLV for the RXF */
917 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
918 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
919
920 fifo_hdr->fifo_num = cpu_to_le32(i);
921 fifo_hdr->available_bytes =
922 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
923 RXF_RD_D_SPACE +
924 offset_diff));
925 fifo_hdr->wr_ptr =
926 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
927 RXF_RD_WR_PTR +
928 offset_diff));
929 fifo_hdr->rd_ptr =
930 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
931 RXF_RD_RD_PTR +
932 offset_diff));
933 fifo_hdr->fence_ptr =
934 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
935 RXF_RD_FENCE_PTR +
936 offset_diff));
937 fifo_hdr->fence_mode =
938 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
939 RXF_SET_FENCE_MODE +
940 offset_diff));
941
942 /* Lock fence */
943 iwl_trans_write_prph(mvm->trans,
944 RXF_SET_FENCE_MODE + offset_diff, 0x1);
945 /* Set fence pointer to the same place like WR pointer */
946 iwl_trans_write_prph(mvm->trans,
947 RXF_LD_WR2FENCE + offset_diff, 0x1);
948 /* Set fence offset */
949 iwl_trans_write_prph(mvm->trans,
950 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
951 0x0);
952
953 /* Read FIFO */
954 fifo_len /= sizeof(u32); /* Size in DWORDS */
955 for (j = 0; j < fifo_len; j++)
956 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
957 RXF_FIFO_RD_FENCE_INC +
958 offset_diff);
959 *dump_data = iwl_fw_error_next_data(*dump_data);
960 }
961
962 /* Pull TXF data from all TXFs */
963 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
964 /* Mark the number of TXF we're pulling now */
965 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
966
967 fifo_hdr = (void *)(*dump_data)->data;
968 fifo_data = (void *)fifo_hdr->data;
969 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
970
971 /* No need to try to read the data if the length is 0 */
972 if (fifo_len == 0)
973 continue;
974
975 /* Add a TLV for the FIFO */
976 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
977 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
978
979 fifo_hdr->fifo_num = cpu_to_le32(i);
980 fifo_hdr->available_bytes =
981 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
982 TXF_FIFO_ITEM_CNT));
983 fifo_hdr->wr_ptr =
984 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
985 TXF_WR_PTR));
986 fifo_hdr->rd_ptr =
987 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
988 TXF_RD_PTR));
989 fifo_hdr->fence_ptr =
990 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
991 TXF_FENCE_PTR));
992 fifo_hdr->fence_mode =
993 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
994 TXF_LOCK_FENCE));
995
996 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
997 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
998 TXF_WR_PTR);
999
1000 /* Dummy-read to advance the read pointer to the head */
1001 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1002
1003 /* Read FIFO */
1004 fifo_len /= sizeof(u32); /* Size in DWORDS */
1005 for (j = 0; j < fifo_len; j++)
1006 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1007 TXF_READ_MODIFY_DATA);
1008 *dump_data = iwl_fw_error_next_data(*dump_data);
1009 }
1010
1011 iwl_trans_release_nic_access(mvm->trans, &flags);
1012}
1013
b6eaa45a
EG		 1014void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1015{
1016 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1017 !mvm->fw_dump_desc)
1018 return;
1019
1020 kfree(mvm->fw_dump_desc);
1021 mvm->fw_dump_desc = NULL;
1022}
1023
e539761d
LK		 1024#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1025#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1026
4bfa47f3 1027void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1028{
1029 struct iwl_fw_error_dump_file *dump_file;
1030 struct iwl_fw_error_dump_data *dump_data;
1031 struct iwl_fw_error_dump_info *dump_info;
a549b296 1032 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1033 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1034 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1035 u32 sram_len, sram_ofs;
04fd2c28 1036 u32 file_len, fifo_data_len = 0;
addfaada 1037 u32 smem_len = mvm->cfg->smem_len;
86138324 1038 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1039
1040 lockdep_assert_held(&mvm->mutex);
1041
aadede6e 1042 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1043 if (!fw_error_dump)
1044 return;
1045
f53bf4c7
LK		 1046 /* SRAM - include stack CCM if driver knows the values for it */
1047 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1048 const struct fw_img *img;
1049
1050 img = &mvm->fw->img[mvm->cur_ucode];
1051 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1052 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1053 } else {
1054 sram_ofs = mvm->cfg->dccm_offset;
1055 sram_len = mvm->cfg->dccm_len;
1056 }
655e6d6d 1057
04fd2c28
LK		 1058 /* reading RXF/TXF sizes */
1059 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1060 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1061 int i;
1062
1063 fifo_data_len = 0;
1064
1065 /* Count RXF size */
1066 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1067 if (!mem_cfg->rxfifo_size[i])
1068 continue;
1069
1070 /* Add header info */
1071 fifo_data_len += mem_cfg->rxfifo_size[i] +
1072 sizeof(*dump_data) +
1073 sizeof(struct iwl_fw_error_dump_fifo);
1074 }
1075
1076 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1077 if (!mem_cfg->txfifo_size[i])
1078 continue;
655e6d6d 1079
04fd2c28
LK		 1080 /* Add header info */
1081 fifo_data_len += mem_cfg->txfifo_size[i] +
1082 sizeof(*dump_data) +
1083 sizeof(struct iwl_fw_error_dump_fifo);
1084 }
1085 }
655e6d6d
EG		 1086
1087 file_len = sizeof(*dump_file) +
04fd2c28 1088 sizeof(*dump_data) * 2 +
a549b296 1089 sram_len + sizeof(*dump_mem) +
04fd2c28 1090 fifo_data_len +
655e6d6d
EG		 1091 sizeof(*dump_info);
1092
e539761d
LK		 1093 /*
1094 * In 8000 HW family B-step include the ICCM (which resides separately)
1095 */
1096 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1097 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1098 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1099 IWL8260_ICCM_LEN;
1100
b6eaa45a
EG		 1101 if (mvm->fw_dump_desc)
1102 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1103 mvm->fw_dump_desc->len;
1104
addfaada
LK		 1105 /* Make room for the SMEM, if it exists */
1106 if (smem_len)
a549b296 1107 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1108
86138324
IY		 1109 /* Make room for the secondary SRAM, if it exists */
1110 if (sram2_len)
1111 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1112
5bfe6f53 1113 dump_file = vzalloc(file_len);
48eb7b34
EG		 1114 if (!dump_file) {
1115 kfree(fw_error_dump);
b6eaa45a 1116 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1117 return;
48eb7b34 1118 }
655e6d6d 1119
48eb7b34 1120 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1121
1122 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1123 dump_data = (void *)dump_file->data;
1124
1125 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1126 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1127 dump_info = (void *) dump_data->data;
1128 dump_info->device_family =
1129 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1130 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1131 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1132 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1133 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1134 sizeof(dump_info->fw_human_readable));
1135 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1136 sizeof(dump_info->dev_human_readable));
1137 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1138 sizeof(dump_info->bus_human_readable));
1139
1140 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1141 /* We only dump the FIFOs if the FW is in error state */
1142 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1143 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1144
b6eaa45a
EG		 1145 if (mvm->fw_dump_desc) {
1146 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1147 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1148 mvm->fw_dump_desc->len);
1149 dump_trig = (void *)dump_data->data;
1150 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1151 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1152
1153 /* now we can free this copy */
1154 iwl_mvm_free_fw_dump_desc(mvm);
1155 dump_data = iwl_fw_error_next_data(dump_data);
1156 }
1157
a549b296
EG		 1158 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1159 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1160 dump_mem = (void *)dump_data->data;
1161 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1162 dump_mem->offset = cpu_to_le32(sram_ofs);
1163 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1164 sram_len);
1165
addfaada
LK		 1166 if (smem_len) {
1167 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1168 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1169 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1170 dump_mem = (void *)dump_data->data;
1171 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1172 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1173 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1174 dump_mem->data, smem_len);
addfaada
LK		 1175 }
1176
86138324
IY		 1177 if (sram2_len) {
1178 dump_data = iwl_fw_error_next_data(dump_data);
1179 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1180 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1181 dump_mem = (void *)dump_data->data;
1182 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1183 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1184 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1185 dump_mem->data, sram2_len);
1186 }
1187
e539761d
LK		 1188 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1189 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1190 dump_data = iwl_fw_error_next_data(dump_data);
1191 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1192 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1193 sizeof(*dump_mem));
1194 dump_mem = (void *)dump_data->data;
1195 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1196 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1197 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1198 dump_mem->data, IWL8260_ICCM_LEN);
1199 }
1200
48eb7b34
EG		 1201 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1202 fw_error_dump->op_mode_len = file_len;
1203 if (fw_error_dump->trans_ptr)
1204 file_len += fw_error_dump->trans_ptr->len;
1205 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1206
aadede6e
JB		 1207 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1208 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1209
1210 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1211}
655e6d6d 1212
b6eaa45a
EG		 1213struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1214 .trig_desc = {
1215 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1216 },
1217};
1218
8ca151b5
JB		 1219static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1220{
58629d9d
JB		 1221 /* clear the D3 reconfig, we only need it to avoid dumping a
1222 * firmware coredump on reconfiguration, we shouldn't do that
1223 * on D3->D0 transition
1224 */
b6eaa45a
EG		 1225 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1226 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1227 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1228 }
1bd3cbc1 1229
744cb695
EP		 1230 /* cleanup all stale references (scan, roc), but keep the
1231 * ucode_down ref until reconfig is complete
1232 */
1233 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1234
8ca151b5 1235 iwl_trans_stop_device(mvm->trans);
8ca151b5 1236
9af91f46 1237 mvm->scan_status = 0;
b1873300 1238 mvm->ps_disabled = false;
31b8b343 1239 mvm->calibrating = false;
8ca151b5
JB		 1240
1241 /* just in case one was running */
1242 ieee80211_remain_on_channel_expired(mvm->hw);
1243
737719fe
AN		 1244 /*
1245 * cleanup all interfaces, even inactive ones, as some might have
1246 * gone down during the HW restart
1247 */
1248 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1249
fe0f2de3 1250 mvm->p2p_device_vif = NULL;
37577fe2 1251 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1252
1253 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1254 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1255 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1256 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1257 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1258 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1259 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1260 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1261 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1262
1263 ieee80211_wake_queues(mvm->hw);
1264
228670b2
EP		 1265 /* clear any stale d0i3 state */
1266 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1267
8ca151b5 1268 mvm->vif_count = 0;
113a0447 1269 mvm->rx_ba_sessions = 0;
d2709ad7 1270 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1271
1272 /* keep statistics ticking */
1273 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1274}
1275
a0a09243 1276int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1277{
8ca151b5
JB		 1278 int ret;
1279
a0a09243 1280 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1281
1282 /* Clean up some internal and mac80211 state on restart */
1283 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1284 iwl_mvm_restart_cleanup(mvm);
1285
1286 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1287
1288 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1289 /* Something went wrong - we need to finish some cleanup
1290 * that normally iwl_mvm_mac_restart_complete() below
1291 * would do.
1292 */
1293 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1294 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1295 }
1296
a0a09243
LC		 1297 return ret;
1298}
1299
1300static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1301{
1302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1303 int ret;
1304
37948fcf
EP		 1305 /* Some hw restart cleanups must not hold the mutex */
1306 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1307 /*
1308 * Make sure we are out of d0i3. This is needed
1309 * to make sure the reference accounting is correct
1310 * (and there is no stale d0i3_exit_work).
1311 */
1312 wait_event_timeout(mvm->d0i3_exit_waitq,
1313 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1314 &mvm->status),
1315 HZ);
1316 }
1317
a0a09243
LC		 1318 mutex_lock(&mvm->mutex);
1319 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1320 mutex_unlock(&mvm->mutex);
1321
1322 return ret;
1323}
1324
cf2c92d8 1325static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1326{
8ca151b5
JB		 1327 int ret;
1328
1329 mutex_lock(&mvm->mutex);
1330
1331 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1332 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1333 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1334 if (ret)
1335 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1336 ret);
1337
7498cf4c
EP		 1338 /* allow transport/FW low power modes */
1339 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1340
cbd2ae2d
AN		 1341 /*
1342 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1343 * of packets the FW sent out, so we must reconnect.
1344 */
1345 iwl_mvm_teardown_tdls_peers(mvm);
1346
8ca151b5
JB		 1347 mutex_unlock(&mvm->mutex);
1348}
1349
088070a2
EP		 1350static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1351{
1352 bool exit_now;
1353
1354 if (!iwl_mvm_is_d0i3_supported(mvm))
1355 return;
1356
1357 mutex_lock(&mvm->d0i3_suspend_mutex);
1358 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1359 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1360 &mvm->d0i3_suspend_flags);
1361 mutex_unlock(&mvm->d0i3_suspend_mutex);
1362
1363 if (exit_now) {
1364 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1365 _iwl_mvm_exit_d0i3(mvm);
1366 }
6735943f
EP		 1367
1368 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1369 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1370 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1371 &mvm->status),
1372 HZ))
1373 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1374}
1375
cf2c92d8
EP		 1376static void
1377iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1378 enum ieee80211_reconfig_type reconfig_type)
1379{
1380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1381
1382 switch (reconfig_type) {
1383 case IEEE80211_RECONFIG_TYPE_RESTART:
1384 iwl_mvm_restart_complete(mvm);
1385 break;
1386 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1387 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1388 break;
1389 }
1390}
1391
a0a09243 1392void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1393{
a0a09243 1394 lockdep_assert_held(&mvm->mutex);
7498cf4c 1395
91a8bcde
JB		 1396 /* firmware counters are obviously reset now, but we shouldn't
1397 * partially track so also clear the fw_reset_accu counters.
1398 */
1399 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1400
0a79a0c0
EP		 1401 /*
1402 * Disallow low power states when the FW is down by taking
1403 * the UCODE_DOWN ref. in case of ongoing hw restart the
1404 * ref is already taken, so don't take it again.
1405 */
1406 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1407 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1408
8ca151b5
JB		 1409 /* async_handlers_wk is now blocked */
1410
1411 /*
1412 * The work item could be running or queued if the
1413 * ROC time event stops just as we get here.
1414 */
c779273b 1415 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1416
1417 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1418
1419 iwl_mvm_async_handlers_purge(mvm);
1420 /* async_handlers_list is empty and will stay empty: HW is stopped */
1421
1422 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1423 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1424
0a79a0c0
EP		 1425 /*
1426 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1427 * won't be called in this case).
1428 */
1429 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1430
963221be
AB		 1431 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1432 * make sure there's nothing left there and warn if any is found.
1433 */
1434 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
1435 int i;
1436
507e4cda 1437 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1438 if (WARN_ONCE(mvm->scan_uid_status[i],
1439 "UMAC scan UID %d status was not cleaned\n",
1440 i))
1441 mvm->scan_uid_status[i] = 0;
963221be
AB		 1442 }
1443 }
1444
bc44886d 1445 mvm->ucode_loaded = false;
a0a09243 1446}
bc44886d 1447
a0a09243
LC		 1448static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1449{
1450 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1451
1452 flush_work(&mvm->d0i3_exit_work);
1453 flush_work(&mvm->async_handlers_wk);
d2709ad7 1454 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1455 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1456
1457 mutex_lock(&mvm->mutex);
1458 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1459 mutex_unlock(&mvm->mutex);
1460
1461 /*
1462 * The worker might have been waiting for the mutex, let it run and
1463 * discover that its list is now empty.
1464 */
1465 cancel_work_sync(&mvm->async_handlers_wk);
1466}
1467
fe0f2de3
IP		 1468static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1469{
1470 u16 i;
1471
1472 lockdep_assert_held(&mvm->mutex);
1473
1474 for (i = 0; i < NUM_PHY_CTX; i++)
1475 if (!mvm->phy_ctxts[i].ref)
1476 return &mvm->phy_ctxts[i];
1477
1478 IWL_ERR(mvm, "No available PHY context\n");
1479 return NULL;
1480}
1481
d44c3fe6
AA		 1482static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1483 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1484{
1485 /* FW is in charge of regulatory enforcement */
1486 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1487 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1488 .pwr_restriction = cpu_to_le16(tx_power),
1489 };
1490
a1022927 1491 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1492 sizeof(reduce_txpwr_cmd),
1493 &reduce_txpwr_cmd);
1494}
1495
d44c3fe6
AA		 1496static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1497 s16 tx_power)
1498{
1499 struct iwl_dev_tx_power_cmd cmd = {
1500 .set_mode = 0,
1501 .mac_context_id =
1502 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1503 .pwr_restriction = cpu_to_le16(8 * tx_power),
1504 };
1505
1506 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV))
1507 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1508
1509 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1510 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1511
1512 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1513 sizeof(cmd), &cmd);
1514}
1515
8ca151b5
JB		 1516static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1517 struct ieee80211_vif *vif)
1518{
1519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1520 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1521 int ret;
1522
aa5e1832
EG		 1523 mvmvif->mvm = mvm;
1524
d40fc489
GG		 1525 /*
1526 * make sure D0i3 exit is completed, otherwise a target access
1527 * during tx queue configuration could be done when still in
1528 * D0i3 state.
1529 */
1530 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1531 if (ret)
1532 return ret;
1533
8ca151b5
JB		 1534 /*
1535 * Not much to do here. The stack will not allow interface
1536 * types or combinations that we didn't advertise, so we
1537 * don't really have to check the types.
1538 */
1539
1540 mutex_lock(&mvm->mutex);
1541
33cef925
JB		 1542 /* make sure that beacon statistics don't go backwards with FW reset */
1543 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1544 mvmvif->beacon_stats.accu_num_beacons +=
1545 mvmvif->beacon_stats.num_beacons;
1546
e89044d7 1547 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1548 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1549 if (ret)
1550 goto out_unlock;
1551
1c2abf72 1552 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1553 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1554 mvm->vif_count++;
ea183d02 1555
8ca151b5
JB		 1556 /*
1557 * The AP binding flow can be done only after the beacon
1558 * template is configured (which happens only in the mac80211
1559 * start_ap() flow), and adding the broadcast station can happen
1560 * only after the binding.
1561 * In addition, since modifying the MAC before adding a bcast
1562 * station is not allowed by the FW, delay the adding of MAC context to
1563 * the point where we can also add the bcast station.
1564 * In short: there's not much we can do at this point, other than
1565 * allocating resources :)
1566 */
5023d966
JB		 1567 if (vif->type == NL80211_IFTYPE_AP ||
1568 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1569 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1570 if (ret) {
1571 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1572 goto out_release;
1573 }
1574
77740cb4 1575 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1576 goto out_unlock;
1577 }
1578
8ca151b5
JB		 1579 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1580 if (ret)
1581 goto out_release;
1582
999609f1 1583 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1584 if (ret)
fd66fc1c 1585 goto out_remove_mac;
8ca151b5 1586
7df15b1e 1587 /* beacon filtering */
a1022927 1588 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1589 if (ret)
1590 goto out_remove_mac;
1591
7df15b1e 1592 if (!mvm->bf_allowed_vif &&
73e5f2c5 1593 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1594 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1595 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1596 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1597 }
1598
8ca151b5
JB		 1599 /*
1600 * P2P_DEVICE interface does not have a channel context assigned to it,
1601 * so a dedicated PHY context is allocated to it and the corresponding
1602 * MAC context is bound to it at this stage.
1603 */
1604 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1605
fe0f2de3
IP		 1606 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1607 if (!mvmvif->phy_ctxt) {
1608 ret = -ENOSPC;
bd3351ba 1609 goto out_free_bf;
fe0f2de3 1610 }
8ca151b5 1611
53a9d61e 1612 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1613 ret = iwl_mvm_binding_add_vif(mvm, vif);
1614 if (ret)
53a9d61e 1615 goto out_unref_phy;
8ca151b5 1616
013290aa 1617 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1618 if (ret)
1619 goto out_unbind;
1620
1621 /* Save a pointer to p2p device vif, so it can later be used to
1622 * update the p2p device MAC when a GO is started/stopped */
1623 mvm->p2p_device_vif = vif;
1624 }
1625
63494374 1626 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1627 goto out_unlock;
1628
1629 out_unbind:
1630 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1631 out_unref_phy:
fe0f2de3 1632 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1633 out_free_bf:
1634 if (mvm->bf_allowed_vif == mvmvif) {
1635 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1636 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1637 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1638 }
8ca151b5
JB		 1639 out_remove_mac:
1640 mvmvif->phy_ctxt = NULL;
1641 iwl_mvm_mac_ctxt_remove(mvm, vif);
1642 out_release:
5ee2b215
AB		 1643 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1644 mvm->vif_count--;
1c2abf72 1645
8ca151b5
JB		 1646 iwl_mvm_mac_ctxt_release(mvm, vif);
1647 out_unlock:
1648 mutex_unlock(&mvm->mutex);
1649
d40fc489
GG		 1650 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1651
8ca151b5
JB		 1652 return ret;
1653}
1654
38a12b5b
JB		 1655static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1656 struct ieee80211_vif *vif)
8ca151b5 1657{
d92b732e 1658 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1659
1660 if (tfd_msk) {
fe92e32a
EG		 1661 /*
1662 * mac80211 first removes all the stations of the vif and
1663 * then removes the vif. When it removes a station it also
1664 * flushes the AMPDU session. So by now, all the AMPDU sessions
1665 * of all the stations of this vif are closed, and the queues
1666 * of these AMPDU sessions are properly closed.
1667 * We still need to take care of the shared queues of the vif.
1668 * Flush them here.
1669 */
8ca151b5
JB		 1670 mutex_lock(&mvm->mutex);
1671 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1672 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1673
1674 /*
1675 * There are transports that buffer a few frames in the host.
1676 * For these, the flush above isn't enough since while we were
1677 * flushing, the transport might have sent more frames to the
1678 * device. To solve this, wait here until the transport is
1679 * empty. Technically, this could have replaced the flush
1680 * above, but flush is much faster than draining. So flush
1681 * first, and drain to make sure we have no frames in the
1682 * transport anymore.
1683 * If a station still had frames on the shared queues, it is
1684 * already marked as draining, so to complete the draining, we
1685 * just need to wait until the transport is empty.
1686 */
1687 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1688 }
1689
1690 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1691 /*
1692 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1693 * We assume here that all the packets sent to the OFFCHANNEL
1694 * queue are sent in ROC session.
1695 */
1696 flush_work(&mvm->roc_done_wk);
1697 } else {
1698 /*
1699 * By now, all the AC queues are empty. The AGG queues are
1700 * empty too. We already got all the Tx responses for all the
1701 * packets in the queues. The drain work can have been
0742a75a 1702 * triggered. Flush it.
8ca151b5
JB		 1703 */
1704 flush_work(&mvm->sta_drained_wk);
1705 }
38a12b5b
JB		 1706}
1707
1708static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1709 struct ieee80211_vif *vif)
1710{
1711 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1712 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1713
1714 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1715
1716 mutex_lock(&mvm->mutex);
1717
7df15b1e
HG		 1718 if (mvm->bf_allowed_vif == mvmvif) {
1719 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1720 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1721 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1722 }
1723
63494374
JB		 1724 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1725
8ca151b5
JB		 1726 /*
1727 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1728 * interface is be handled as part of the stop_ap flow.
8ca151b5 1729 */
5023d966
JB		 1730 if (vif->type == NL80211_IFTYPE_AP ||
1731 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1732#ifdef CONFIG_NL80211_TESTMODE
1733 if (vif == mvm->noa_vif) {
1734 mvm->noa_vif = NULL;
1735 mvm->noa_duration = 0;
1736 }
1737#endif
013290aa 1738 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1739 goto out_release;
1740 }
1741
1742 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1743 mvm->p2p_device_vif = NULL;
013290aa 1744 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1745 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1746 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1747 mvmvif->phy_ctxt = NULL;
1748 }
1749
5ee2b215 1750 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1751 mvm->vif_count--;
1c2abf72 1752
999609f1 1753 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1754 iwl_mvm_mac_ctxt_remove(mvm, vif);
1755
1756out_release:
1757 iwl_mvm_mac_ctxt_release(mvm, vif);
1758 mutex_unlock(&mvm->mutex);
1759}
1760
1761static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1762{
8ca151b5
JB		 1763 return 0;
1764}
1765
e59647ea
EP		 1766struct iwl_mvm_mc_iter_data {
1767 struct iwl_mvm *mvm;
1768 int port_id;
1769};
1770
1771static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1772 struct ieee80211_vif *vif)
1773{
1774 struct iwl_mvm_mc_iter_data *data = _data;
1775 struct iwl_mvm *mvm = data->mvm;
1776 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1777 int ret, len;
1778
1779 /* if we don't have free ports, mcast frames will be dropped */
1780 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1781 return;
1782
1783 if (vif->type != NL80211_IFTYPE_STATION ||
1784 !vif->bss_conf.assoc)
1785 return;
1786
1787 cmd->port_id = data->port_id++;
1788 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1789 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1790
1c4abec0 1791 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1792 if (ret)
1793 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1794}
1795
1796static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1797{
1798 struct iwl_mvm_mc_iter_data iter_data = {
1799 .mvm = mvm,
88f2fd73
MG		 1800 };
1801
e59647ea
EP		 1802 lockdep_assert_held(&mvm->mutex);
1803
1804 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1805 return;
1806
1c4abec0 1807 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1808 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1809 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1810}
1811
e59647ea
EP		 1812static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1813 struct netdev_hw_addr_list *mc_list)
8ca151b5 1814{
e59647ea
EP		 1815 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1816 struct iwl_mcast_filter_cmd *cmd;
1817 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1818 int addr_count;
1819 bool pass_all;
e59647ea
EP		 1820 int len;
1821
f3bd58f4
MS		 1822 addr_count = netdev_hw_addr_list_count(mc_list);
1823 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1824 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1825 if (pass_all)
e59647ea 1826 addr_count = 0;
e59647ea
EP		 1827
1828 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1829 cmd = kzalloc(len, GFP_ATOMIC);
1830 if (!cmd)
1831 return 0;
1832
1833 if (pass_all) {
1834 cmd->pass_all = 1;
1835 return (u64)(unsigned long)cmd;
1836 }
1837
1838 netdev_hw_addr_list_for_each(addr, mc_list) {
1839 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1840 cmd->count, addr->addr);
1841 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1842 addr->addr, ETH_ALEN);
1843 cmd->count++;
1844 }
1845
1846 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1847}
1848
1849static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1850 unsigned int changed_flags,
1851 unsigned int *total_flags,
1852 u64 multicast)
1853{
e59647ea
EP		 1854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1855 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1856
e59647ea 1857 mutex_lock(&mvm->mutex);
51b6b9e0 1858
e59647ea
EP		 1859 /* replace previous configuration */
1860 kfree(mvm->mcast_filter_cmd);
1861 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1862
e59647ea
EP		 1863 if (!cmd)
1864 goto out;
51b6b9e0 1865
e59647ea
EP		 1866 iwl_mvm_recalc_multicast(mvm);
1867out:
1868 mutex_unlock(&mvm->mutex);
1869 *total_flags = 0;
51b6b9e0
EG		 1870}
1871
c87163b9
EP		 1872#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1873struct iwl_bcast_iter_data {
1874 struct iwl_mvm *mvm;
1875 struct iwl_bcast_filter_cmd *cmd;
1876 u8 current_filter;
1877};
1878
1879static void
1880iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1881 const struct iwl_fw_bcast_filter *in_filter,
1882 struct iwl_fw_bcast_filter *out_filter)
1883{
1884 struct iwl_fw_bcast_filter_attr *attr;
1885 int i;
1886
1887 memcpy(out_filter, in_filter, sizeof(*out_filter));
1888
1889 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1890 attr = &out_filter->attrs[i];
1891
1892 if (!attr->mask)
1893 break;
1894
2ee8f021
EP		 1895 switch (attr->reserved1) {
1896 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1897 if (vif->bss_conf.arp_addr_cnt != 1) {
1898 attr->mask = 0;
1899 continue;
1900 }
1901
1902 attr->val = vif->bss_conf.arp_addr_list[0];
1903 break;
1904 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1905 attr->val = *(__be32 *)&vif->addr[2];
1906 break;
1907 default:
1908 break;
1909 }
1910 attr->reserved1 = 0;
c87163b9
EP		 1911 out_filter->num_attrs++;
1912 }
1913}
1914
1915static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1916 struct ieee80211_vif *vif)
1917{
1918 struct iwl_bcast_iter_data *data = _data;
1919 struct iwl_mvm *mvm = data->mvm;
1920 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1921 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1922 struct iwl_fw_bcast_mac *bcast_mac;
1923 int i;
1924
1925 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1926 return;
1927
1928 bcast_mac = &cmd->macs[mvmvif->id];
1929
e48393e8
IP		 1930 /*
1931 * enable filtering only for associated stations, but not for P2P
1932 * Clients
1933 */
1934 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1935 !vif->bss_conf.assoc)
c87163b9
EP		 1936 return;
1937
1938 bcast_mac->default_discard = 1;
1939
1940 /* copy all configured filters */
1941 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1942 /*
1943 * Make sure we don't exceed our filters limit.
1944 * if there is still a valid filter to be configured,
1945 * be on the safe side and just allow bcast for this mac.
1946 */
1947 if (WARN_ON_ONCE(data->current_filter >=
1948 ARRAY_SIZE(cmd->filters))) {
1949 bcast_mac->default_discard = 0;
1950 bcast_mac->attached_filters = 0;
1951 break;
1952 }
1953
1954 iwl_mvm_set_bcast_filter(vif,
1955 &mvm->bcast_filters[i],
1956 &cmd->filters[data->current_filter]);
1957
1958 /* skip current filter if it contains no attributes */
1959 if (!cmd->filters[data->current_filter].num_attrs)
1960 continue;
1961
1962 /* attach the filter to current mac */
1963 bcast_mac->attached_filters |=
1964 cpu_to_le16(BIT(data->current_filter));
1965
1966 data->current_filter++;
1967 }
1968}
1969
de06a59e
EP		 1970bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1971 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1972{
c87163b9
EP		 1973 struct iwl_bcast_iter_data iter_data = {
1974 .mvm = mvm,
de06a59e 1975 .cmd = cmd,
c87163b9
EP		 1976 };
1977
3b8983b1
MS		 1978 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1979 return false;
1980
de06a59e
EP		 1981 memset(cmd, 0, sizeof(*cmd));
1982 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1983 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1984
1985#ifdef CONFIG_IWLWIFI_DEBUGFS
1986 /* use debugfs filters/macs if override is configured */
1987 if (mvm->dbgfs_bcast_filtering.override) {
1988 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1989 sizeof(cmd->filters));
1990 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1991 sizeof(cmd->macs));
1992 return true;
1993 }
1994#endif
c87163b9
EP		 1995
1996 /* if no filters are configured, do nothing */
1997 if (!mvm->bcast_filters)
de06a59e 1998 return false;
c87163b9
EP		 1999
2000 /* configure and attach these filters for each associated sta vif */
2001 ieee80211_iterate_active_interfaces(
2002 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2003 iwl_mvm_bcast_filter_iterator, &iter_data);
2004
de06a59e
EP		 2005 return true;
2006}
2007static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2008 struct ieee80211_vif *vif)
2009{
2010 struct iwl_bcast_filter_cmd cmd;
2011
2012 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2013 return 0;
2014
2015 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2016 return 0;
2017
a1022927 2018 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2019 sizeof(cmd), &cmd);
2020}
2021#else
2022static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2023 struct ieee80211_vif *vif)
2024{
2025 return 0;
2026}
2027#endif
2028
8ca151b5
JB		 2029static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2030 struct ieee80211_vif *vif,
2031 struct ieee80211_bss_conf *bss_conf,
2032 u32 changes)
2033{
2034 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2035 int ret;
2036
6e97b0d2
IP		 2037 /*
2038 * Re-calculate the tsf id, as the master-slave relations depend on the
2039 * beacon interval, which was not known when the station interface was
2040 * added.
2041 */
2042 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2043 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2044
3dfd3a97
JB		 2045 /*
2046 * If we're not associated yet, take the (new) BSSID before associating
2047 * so the firmware knows. If we're already associated, then use the old
2048 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2049 * branch for disassociation below.
2050 */
2051 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2052 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2053
2054 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2055 if (ret)
2056 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2057
3dfd3a97
JB		 2058 /* after sending it once, adopt mac80211 data */
2059 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2060 mvmvif->associated = bss_conf->assoc;
2061
8ca151b5
JB		 2062 if (changes & BSS_CHANGED_ASSOC) {
2063 if (bss_conf->assoc) {
33cef925
JB		 2064 /* clear statistics to get clean beacon counter */
2065 iwl_mvm_request_statistics(mvm, true);
2066 memset(&mvmvif->beacon_stats, 0,
2067 sizeof(mvmvif->beacon_stats));
2068
8ca151b5 2069 /* add quota for this interface */
7754ae79 2070 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2071 if (ret) {
2072 IWL_ERR(mvm, "failed to update quotas\n");
2073 return;
2074 }
016d27e1
JB		 2075
2076 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2077 &mvm->status)) {
2078 /*
2079 * If we're restarting then the firmware will
2080 * obviously have lost synchronisation with
2081 * the AP. It will attempt to synchronise by
2082 * itself, but we can make it more reliable by
2083 * scheduling a session protection time event.
2084 *
2085 * The firmware needs to receive a beacon to
2086 * catch up with synchronisation, use 110% of
2087 * the beacon interval.
2088 *
2089 * Set a large maximum delay to allow for more
2090 * than a single interface.
2091 */
2092 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2093 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2094 5 * dur, false);
016d27e1 2095 }
1f3b0ff8
LE		 2096
2097 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2098 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2099 if (vif->p2p) {
29a90a49 2100 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2101 iwl_mvm_update_smps(mvm, vif,
2102 IWL_MVM_SMPS_REQ_PROT,
2103 IEEE80211_SMPS_DYNAMIC);
2104 }
8ca151b5 2105 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2106 /*
2107 * If update fails - SF might be running in associated
2108 * mode while disassociated - which is forbidden.
2109 */
2110 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2111 "Failed to update SF upon disassociation\n");
2112
8ca151b5
JB		 2113 /* remove AP station now that the MAC is unassoc */
2114 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2115 if (ret)
2116 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2117
2118 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2119 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2120 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2121 /* remove quota for this interface */
7754ae79 2122 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2123 if (ret)
2124 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2125
2126 if (vif->p2p)
2127 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2128
2129 /* this will take the cleared BSSID from bss_conf */
2130 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2131 if (ret)
2132 IWL_ERR(mvm,
2133 "failed to update MAC %pM (clear after unassoc)\n",
2134 vif->addr);
8ca151b5 2135 }
a20fd398 2136
e59647ea 2137 iwl_mvm_recalc_multicast(mvm);
c87163b9 2138 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2139
a20fd398
AO		 2140 /* reset rssi values */
2141 mvmvif->bf_data.ave_beacon_signal = 0;
2142
8e484f0b 2143 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2144 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2145 IEEE80211_SMPS_AUTOMATIC);
989c6505 2146 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2147 /*
2148 * We received a beacon _after_ association so
2149 * remove the session protection.
2150 */
2151 iwl_mvm_remove_time_event(mvm, mvmvif,
2152 &mvmvif->time_event_data);
8ca151b5 2153 }
cc87d322
EH		 2154
2155 if (changes & BSS_CHANGED_BEACON_INFO) {
2156 iwl_mvm_sf_update(mvm, vif, false);
2157 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2158 }
2159
1bc10d3b
JB		 2160 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2161 ret = iwl_mvm_power_update_mac(mvm);
2162 if (ret)
2163 IWL_ERR(mvm, "failed to update power mode\n");
2164 }
2165
88f2fd73
MG		 2166 if (changes & BSS_CHANGED_TXPOWER) {
2167 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2168 bss_conf->txpower);
2169 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2170 }
a20fd398
AO		 2171
2172 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2173 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2174 /* reset cqm events tracking */
2175 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2176 if (mvmvif->bf_data.bf_enabled) {
2177 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2178 if (ret)
2179 IWL_ERR(mvm,
2180 "failed to update CQM thresholds\n");
2181 }
a20fd398 2182 }
2ee8f021
EP		 2183
2184 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2185 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2186 iwl_mvm_configure_bcast_filter(mvm, vif);
2187 }
8ca151b5
JB		 2188}
2189
5023d966
JB		 2190static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2191 struct ieee80211_vif *vif)
8ca151b5
JB		 2192{
2193 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2194 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2195 int ret;
2196
576eeee9
EP		 2197 /*
2198 * iwl_mvm_mac_ctxt_add() might read directly from the device
2199 * (the system time), so make sure it is available.
2200 */
2201 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2202 if (ret)
2203 return ret;
2204
8ca151b5
JB		 2205 mutex_lock(&mvm->mutex);
2206
2207 /* Send the beacon template */
2208 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2209 if (ret)
2210 goto out_unlock;
2211
6e97b0d2
IP		 2212 /*
2213 * Re-calculate the tsf id, as the master-slave relations depend on the
2214 * beacon interval, which was not known when the AP interface was added.
2215 */
2216 if (vif->type == NL80211_IFTYPE_AP)
2217 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2218
8ca151b5
JB		 2219 /* Add the mac context */
2220 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2221 if (ret)
2222 goto out_unlock;
2223
2224 /* Perform the binding */
2225 ret = iwl_mvm_binding_add_vif(mvm, vif);
2226 if (ret)
2227 goto out_remove;
2228
8ca151b5
JB		 2229 /* Send the bcast station. At this stage the TBTT and DTIM time events
2230 * are added and applied to the scheduler */
013290aa 2231 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2232 if (ret)
2233 goto out_unbind;
2234
5691e218
IP		 2235 /* must be set before quota calculations */
2236 mvmvif->ap_ibss_active = true;
2237
a11e144e 2238 /* power updated needs to be done before quotas */
999609f1 2239 iwl_mvm_power_update_mac(mvm);
a11e144e 2240
7754ae79 2241 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2242 if (ret)
a11e144e 2243 goto out_quota_failed;
8ca151b5 2244
5023d966 2245 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2246 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2247 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2248
29a90a49
EP		 2249 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2250
8e484f0b 2251 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2252
f697267f
AN		 2253 /* we don't support TDLS during DCM */
2254 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2255 iwl_mvm_teardown_tdls_peers(mvm);
2256
939e4904 2257 goto out_unlock;
8ca151b5 2258
a11e144e 2259out_quota_failed:
999609f1 2260 iwl_mvm_power_update_mac(mvm);
5691e218 2261 mvmvif->ap_ibss_active = false;
013290aa 2262 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2263out_unbind:
2264 iwl_mvm_binding_remove_vif(mvm, vif);
2265out_remove:
2266 iwl_mvm_mac_ctxt_remove(mvm, vif);
2267out_unlock:
2268 mutex_unlock(&mvm->mutex);
576eeee9 2269 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2270 return ret;
2271}
2272
5023d966
JB		 2273static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2274 struct ieee80211_vif *vif)
8ca151b5
JB		 2275{
2276 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2277 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2278
38a12b5b
JB		 2279 iwl_mvm_prepare_mac_removal(mvm, vif);
2280
8ca151b5
JB		 2281 mutex_lock(&mvm->mutex);
2282
664322fa 2283 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2284 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2285 iwl_mvm_remove_time_event(mvm, mvmvif,
2286 &mvmvif->time_event_data);
664322fa 2287 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2288 }
664322fa 2289
003e5236
AO		 2290 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2291 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2292 mvm->csa_tx_block_bcn_timeout = 0;
2293 }
2294
5023d966 2295 mvmvif->ap_ibss_active = false;
1c87bbad 2296 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2297
8e484f0b 2298 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2299
29a90a49
EP		 2300 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2301
5023d966 2302 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2303 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2304 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2305
7754ae79 2306 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2307 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2308 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2309
999609f1 2310 iwl_mvm_power_update_mac(mvm);
a11e144e 2311
8ca151b5
JB		 2312 iwl_mvm_mac_ctxt_remove(mvm, vif);
2313
2314 mutex_unlock(&mvm->mutex);
2315}
2316
5023d966
JB		 2317static void
2318iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2319 struct ieee80211_vif *vif,
2320 struct ieee80211_bss_conf *bss_conf,
2321 u32 changes)
8ca151b5 2322{
be2056fc 2323 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2324
be2056fc
IP		 2325 /* Changes will be applied when the AP/IBSS is started */
2326 if (!mvmvif->ap_ibss_active)
2327 return;
2328
863230da 2329 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2330 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2331 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2332 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2333
8ca151b5 2334 /* Need to send a new beacon template to the FW */
863230da
JB		 2335 if (changes & BSS_CHANGED_BEACON &&
2336 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2337 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2338
2339 if (changes & BSS_CHANGED_TXPOWER) {
2340 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2341 bss_conf->txpower);
2342 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2343 }
2344
8ca151b5
JB		 2345}
2346
2347static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2348 struct ieee80211_vif *vif,
2349 struct ieee80211_bss_conf *bss_conf,
2350 u32 changes)
2351{
2352 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2353
576eeee9
EP		 2354 /*
2355 * iwl_mvm_bss_info_changed_station() might call
2356 * iwl_mvm_protect_session(), which reads directly from
2357 * the device (the system time), so make sure it is available.
2358 */
2359 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2360 return;
2361
8ca151b5
JB		 2362 mutex_lock(&mvm->mutex);
2363
7576d54f 2364 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2365 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2366
8ca151b5
JB		 2367 switch (vif->type) {
2368 case NL80211_IFTYPE_STATION:
2369 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2370 break;
2371 case NL80211_IFTYPE_AP:
5023d966
JB		 2372 case NL80211_IFTYPE_ADHOC:
2373 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2374 break;
2375 default:
2376 /* shouldn't happen */
2377 WARN_ON_ONCE(1);
2378 }
2379
2380 mutex_unlock(&mvm->mutex);
576eeee9 2381 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2382}
2383
2384static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2385 struct ieee80211_vif *vif,
c56ef672 2386 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2387{
2388 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2389 int ret;
2390
6749dd80
LC		 2391 if (hw_req->req.n_channels == 0 ||
2392 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2393 return -EINVAL;
2394
bd9564da 2395 mutex_lock(&mvm->mutex);
6749dd80 2396 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2397 mutex_unlock(&mvm->mutex);
6749dd80 2398
8ca151b5
JB		 2399 return ret;
2400}
2401
2402static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2403 struct ieee80211_vif *vif)
2404{
2405 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2406
2407 mutex_lock(&mvm->mutex);
2408
e7d3abab
LC		 2409 /* Due to a race condition, it's possible that mac80211 asks
2410 * us to stop a hw_scan when it's already stopped. This can
2411 * happen, for instance, if we stopped the scan ourselves,
2412 * called ieee80211_scan_completed() and the userspace called
2413 * cancel scan scan before ieee80211_scan_work() could run.
2414 * To handle that, simply return if the scan is not running.
2415 */
2416 /* FIXME: for now, we ignore this race for UMAC scans, since
2417 * they don't set the scan_status.
2418 */
9af91f46 2419 if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) ||
e7d3abab 2420 (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
c7d42480 2421 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2422
2423 mutex_unlock(&mvm->mutex);
2424}
2425
2426static void
2427iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2428 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2429 int num_frames,
2430 enum ieee80211_frame_release_type reason,
2431 bool more_data)
2432{
2433 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2434
3e56eadf 2435 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2436
3e56eadf
JB		 2437 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2438 tids, more_data, false);
2439}
2440
2441static void
2442iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2443 struct ieee80211_sta *sta, u16 tids,
2444 int num_frames,
2445 enum ieee80211_frame_release_type reason,
2446 bool more_data)
2447{
2448 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2449
2450 /* Called when we need to transmit (a) frame(s) from agg queue */
2451
2452 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2453 tids, more_data, true);
8ca151b5
JB		 2454}
2455
2456static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2457 struct ieee80211_vif *vif,
2458 enum sta_notify_cmd cmd,
2459 struct ieee80211_sta *sta)
2460{
2461 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2462 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2463 unsigned long txqs = 0, tids = 0;
3e56eadf 2464 int tid;
8ca151b5 2465
c22b0ff5
EG		 2466 spin_lock_bh(&mvmsta->lock);
2467 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2468 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2469
2470 if (tid_data->state != IWL_AGG_ON &&
2471 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2472 continue;
2473
2474 __set_bit(tid_data->txq_id, &txqs);
2475
2476 if (iwl_mvm_tid_queued(tid_data) == 0)
2477 continue;
2478
2479 __set_bit(tid, &tids);
2480 }
2481
8ca151b5
JB		 2482 switch (cmd) {
2483 case STA_NOTIFY_SLEEP:
e3d4bc8c 2484 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2485 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2486
c22b0ff5 2487 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2488 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2489
2490 if (txqs)
2491 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2492 /*
2493 * The fw updates the STA to be asleep. Tx packets on the Tx
2494 * queues to this station will not be transmitted. The fw will
2495 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2496 */
2497 break;
2498 case STA_NOTIFY_AWAKE:
881acd89 2499 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2500 break;
c22b0ff5
EG		 2501
2502 if (txqs)
2503 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2504 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2505 break;
2506 default:
2507 break;
2508 }
c22b0ff5 2509 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2510}
2511
1ddbbb0c
JB		 2512static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2513 struct ieee80211_vif *vif,
2514 struct ieee80211_sta *sta)
2515{
2516 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2517 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2518
2519 /*
2520 * This is called before mac80211 does RCU synchronisation,
2521 * so here we already invalidate our internal RCU-protected
2522 * station pointer. The rest of the code will thus no longer
2523 * be able to find the station this way, and we don't rely
2524 * on further RCU synchronisation after the sta_state()
2525 * callback deleted the station.
2526 */
2527 mutex_lock(&mvm->mutex);
2528 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2529 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2530 ERR_PTR(-ENOENT));
2531 mutex_unlock(&mvm->mutex);
2532}
2533
bd1ba664
JB		 2534static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2535 const u8 *bssid)
2536{
2537 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2538 return;
2539
2540 if (iwlwifi_mod_params.uapsd_disable) {
2541 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2542 return;
2543 }
2544
2545 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2546}
2547
8ca151b5
JB		 2548static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2549 struct ieee80211_vif *vif,
2550 struct ieee80211_sta *sta,
2551 enum ieee80211_sta_state old_state,
2552 enum ieee80211_sta_state new_state)
2553{
2554 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2555 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2556 int ret;
2557
2558 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2559 sta->addr, old_state, new_state);
2560
2561 /* this would be a mac80211 bug ... but don't crash */
2562 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2563 return -EINVAL;
2564
2565 /* if a STA is being removed, reuse its ID */
2566 flush_work(&mvm->sta_drained_wk);
2567
2568 mutex_lock(&mvm->mutex);
2569 if (old_state == IEEE80211_STA_NOTEXIST &&
2570 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2571 /*
2572 * Firmware bug - it'll crash if the beacon interval is less
2573 * than 16. We can't avoid connecting at all, so refuse the
2574 * station state change, this will cause mac80211 to abandon
2575 * attempts to connect to this AP, and eventually wpa_s will
2576 * blacklist the AP...
2577 */
2578 if (vif->type == NL80211_IFTYPE_STATION &&
2579 vif->bss_conf.beacon_int < 16) {
2580 IWL_ERR(mvm,
2581 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2582 sta->addr, vif->bss_conf.beacon_int);
2583 ret = -EINVAL;
2584 goto out_unlock;
2585 }
cf7b491d
AN		 2586
2587 if (sta->tdls &&
2588 (vif->p2p ||
fa3d07e4
AN		 2589 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2590 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2591 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2592 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2593 ret = -EBUSY;
2594 goto out_unlock;
2595 }
2596
8ca151b5 2597 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2598 if (sta->tdls && ret == 0)
2599 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2600 } else if (old_state == IEEE80211_STA_NONE &&
2601 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2602 /*
2603 * EBS may be disabled due to previous failures reported by FW.
2604 * Reset EBS status here assuming environment has been changed.
2605 */
2606 mvm->last_ebs_successful = true;
bd1ba664 2607 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2608 ret = 0;
2609 } else if (old_state == IEEE80211_STA_AUTH &&
2610 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2611 ret = iwl_mvm_update_sta(mvm, vif, sta);
2612 if (ret == 0)
2613 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2614 mvmvif->phy_ctxt->channel->band,
2615 true);
8ca151b5
JB		 2616 } else if (old_state == IEEE80211_STA_ASSOC &&
2617 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2618
2619 /* we don't support TDLS during DCM */
2620 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2621 iwl_mvm_teardown_tdls_peers(mvm);
2622
7df15b1e 2623 /* enable beacon filtering */
fa7b2e7f 2624 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2625 ret = 0;
2626 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2627 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2628 /* disable beacon filtering */
a1022927 2629 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2630 ret = 0;
2631 } else if (old_state == IEEE80211_STA_ASSOC &&
2632 new_state == IEEE80211_STA_AUTH) {
2633 ret = 0;
2634 } else if (old_state == IEEE80211_STA_AUTH &&
2635 new_state == IEEE80211_STA_NONE) {
2636 ret = 0;
2637 } else if (old_state == IEEE80211_STA_NONE &&
2638 new_state == IEEE80211_STA_NOTEXIST) {
2639 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2640 if (sta->tdls)
2641 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2642 } else {
2643 ret = -EIO;
2644 }
48bc1307 2645 out_unlock:
8ca151b5
JB		 2646 mutex_unlock(&mvm->mutex);
2647
9c126cd6
LK		 2648 if (sta->tdls && ret == 0) {
2649 if (old_state == IEEE80211_STA_NOTEXIST &&
2650 new_state == IEEE80211_STA_NONE)
2651 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2652 else if (old_state == IEEE80211_STA_NONE &&
2653 new_state == IEEE80211_STA_NOTEXIST)
2654 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2655 }
2656
8ca151b5
JB		 2657 return ret;
2658}
2659
2660static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2661{
2662 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2663
2664 mvm->rts_threshold = value;
2665
2666 return 0;
2667}
2668
1f3b0ff8
LE		 2669static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2670 struct ieee80211_vif *vif,
2671 struct ieee80211_sta *sta, u32 changed)
2672{
2673 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2674
2675 if (vif->type == NL80211_IFTYPE_STATION &&
2676 changed & IEEE80211_RC_NSS_CHANGED)
2677 iwl_mvm_sf_update(mvm, vif, false);
2678}
2679
8ca151b5
JB		 2680static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2681 struct ieee80211_vif *vif, u16 ac,
2682 const struct ieee80211_tx_queue_params *params)
2683{
2684 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2685 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2686
2687 mvmvif->queue_params[ac] = *params;
2688
2689 /*
2690 * No need to update right away, we'll get BSS_CHANGED_QOS
2691 * The exception is P2P_DEVICE interface which needs immediate update.
2692 */
2693 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2694 int ret;
2695
2696 mutex_lock(&mvm->mutex);
3dfd3a97 2697 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2698 mutex_unlock(&mvm->mutex);
2699 return ret;
2700 }
2701 return 0;
2702}
2703
2704static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2705 struct ieee80211_vif *vif)
2706{
2707 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2708 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2709 200 + vif->bss_conf.beacon_int);
2710 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2711 100 + vif->bss_conf.beacon_int);
2712
2713 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2714 return;
2715
576eeee9
EP		 2716 /*
2717 * iwl_mvm_protect_session() reads directly from the device
2718 * (the system time), so make sure it is available.
2719 */
2720 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2721 return;
2722
8ca151b5
JB		 2723 mutex_lock(&mvm->mutex);
2724 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2725 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2726 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2727
2728 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2729}
2730
35a000b7
DS		 2731static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2732 struct ieee80211_vif *vif,
2733 struct cfg80211_sched_scan_request *req,
633e2713 2734 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2735{
2736 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6749dd80 2737
35a000b7
DS		 2738 int ret;
2739
bd9564da
LC		 2740 mutex_lock(&mvm->mutex);
2741
1f940386 2742 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2743 ret = -EBUSY;
2744 goto out;
2745 }
2746
19945dfb 2747 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2748
35a000b7
DS		 2749out:
2750 mutex_unlock(&mvm->mutex);
2751 return ret;
2752}
2753
37e3308c
JB		 2754static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2755 struct ieee80211_vif *vif)
35a000b7
DS		 2756{
2757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2758 int ret;
35a000b7
DS		 2759
2760 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2761
2762 /* Due to a race condition, it's possible that mac80211 asks
2763 * us to stop a sched_scan when it's already stopped. This
2764 * can happen, for instance, if we stopped the scan ourselves,
2765 * called ieee80211_sched_scan_stopped() and the userspace called
2766 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2767 * could run. To handle this, simply return if the scan is
2768 * not running.
2769 */
2770 /* FIXME: for now, we ignore this race for UMAC scans, since
2771 * they don't set the scan_status.
2772 */
9af91f46 2773 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
e7d3abab
LC		 2774 !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2775 mutex_unlock(&mvm->mutex);
2776 return 0;
2777 }
2778
c7d42480 2779 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2780 mutex_unlock(&mvm->mutex);
33ea27f6 2781 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2782
33ea27f6 2783 return ret;
35a000b7
DS		 2784}
2785
8ca151b5
JB		 2786static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2787 enum set_key_cmd cmd,
2788 struct ieee80211_vif *vif,
2789 struct ieee80211_sta *sta,
2790 struct ieee80211_key_conf *key)
2791{
2792 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2793 int ret;
2794
2795 if (iwlwifi_mod_params.sw_crypto) {
2796 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2797 return -EOPNOTSUPP;
2798 }
2799
2800 switch (key->cipher) {
2801 case WLAN_CIPHER_SUITE_TKIP:
2802 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2803 /* fall-through */
2804 case WLAN_CIPHER_SUITE_CCMP:
2805 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2806 break;
2807 case WLAN_CIPHER_SUITE_AES_CMAC:
2808 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2809 break;
2810 case WLAN_CIPHER_SUITE_WEP40:
2811 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2812 /* For non-client mode, only use WEP keys for TX as we probably
2813 * don't have a station yet anyway and would then have to keep
2814 * track of the keys, linking them to each of the clients/peers
2815 * as they appear. For now, don't do that, for performance WEP
2816 * offload doesn't really matter much, but we need it for some
2817 * other offload features in client mode.
8ca151b5 2818 */
ba3943b0
JB		 2819 if (vif->type != NL80211_IFTYPE_STATION)
2820 return 0;
2821 break;
8ca151b5 2822 default:
e36e5433
MS		 2823 /* currently FW supports only one optional cipher scheme */
2824 if (hw->n_cipher_schemes &&
2825 hw->cipher_schemes->cipher == key->cipher)
2826 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2827 else
2828 return -EOPNOTSUPP;
8ca151b5
JB		 2829 }
2830
2831 mutex_lock(&mvm->mutex);
2832
2833 switch (cmd) {
2834 case SET_KEY:
5023d966
JB		 2835 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2836 vif->type == NL80211_IFTYPE_AP) && !sta) {
2837 /*
2838 * GTK on AP interface is a TX-only key, return 0;
2839 * on IBSS they're per-station and because we're lazy
2840 * we don't support them for RX, so do the same.
2841 */
6caffd4f
JB		 2842 ret = 0;
2843 key->hw_key_idx = STA_KEY_IDX_INVALID;
2844 break;
2845 }
2846
b546dcd6
JB		 2847 /* During FW restart, in order to restore the state as it was,
2848 * don't try to reprogram keys we previously failed for.
2849 */
2850 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2851 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2852 IWL_DEBUG_MAC80211(mvm,
2853 "skip invalid idx key programming during restart\n");
2854 ret = 0;
2855 break;
2856 }
2857
8ca151b5 2858 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2859 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2860 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2861 &mvm->status));
8ca151b5
JB		 2862 if (ret) {
2863 IWL_WARN(mvm, "set key failed\n");
2864 /*
2865 * can't add key for RX, but we don't need it
2866 * in the device for TX so still return 0
2867 */
6caffd4f 2868 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2869 ret = 0;
2870 }
2871
2872 break;
2873 case DISABLE_KEY:
6caffd4f
JB		 2874 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2875 ret = 0;
2876 break;
2877 }
2878
8ca151b5
JB		 2879 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2880 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2881 break;
2882 default:
2883 ret = -EINVAL;
2884 }
2885
2886 mutex_unlock(&mvm->mutex);
2887 return ret;
2888}
2889
2890static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2891 struct ieee80211_vif *vif,
2892 struct ieee80211_key_conf *keyconf,
2893 struct ieee80211_sta *sta,
2894 u32 iv32, u16 *phase1key)
2895{
2896 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2897
5023d966
JB		 2898 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2899 return;
2900
8ca151b5
JB		 2901 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2902}
2903
2904
b112889c
AM		 2905static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2906 struct iwl_rx_packet *pkt, void *data)
2907{
2908 struct iwl_mvm *mvm =
2909 container_of(notif_wait, struct iwl_mvm, notif_wait);
2910 struct iwl_hs20_roc_res *resp;
2911 int resp_len = iwl_rx_packet_payload_len(pkt);
2912 struct iwl_mvm_time_event_data *te_data = data;
2913
2914 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2915 return true;
2916
2917 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2918 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2919 return true;
2920 }
2921
2922 resp = (void *)pkt->data;
2923
2924 IWL_DEBUG_TE(mvm,
2925 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2926 resp->status, resp->event_unique_id);
2927
2928 te_data->uid = le32_to_cpu(resp->event_unique_id);
2929 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2930 te_data->uid);
2931
2932 spin_lock_bh(&mvm->time_event_lock);
2933 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2934 spin_unlock_bh(&mvm->time_event_lock);
2935
2936 return true;
2937}
2938
35d3dab5 2939#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 2940static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2941 struct ieee80211_channel *channel,
2942 struct ieee80211_vif *vif,
2943 int duration)
2944{
2945 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2946 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2947 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2948 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2949 struct iwl_notification_wait wait_time_event;
2950 struct iwl_hs20_roc_req aux_roc_req = {
2951 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2952 .id_and_color =
2953 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2954 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2955 /* Set the channel info data */
2956 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2957 PHY_BAND_24 : PHY_BAND_5,
2958 .channel_info.channel = channel->hw_value,
2959 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2960 /* Set the time and duration */
2961 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2962 .apply_time_max_delay =
2963 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2964 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2965 };
2966
2967 /* Set the node address */
2968 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2969
a6cc5163
MG		 2970 lockdep_assert_held(&mvm->mutex);
2971
2972 spin_lock_bh(&mvm->time_event_lock);
2973
2974 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2975 spin_unlock_bh(&mvm->time_event_lock);
2976 return -EIO;
2977 }
2978
b112889c
AM		 2979 te_data->vif = vif;
2980 te_data->duration = duration;
2981 te_data->id = HOT_SPOT_CMD;
2982
b112889c
AM		 2983 spin_unlock_bh(&mvm->time_event_lock);
2984
2985 /*
2986 * Use a notification wait, which really just processes the
2987 * command response and doesn't wait for anything, in order
2988 * to be able to process the response and get the UID inside
2989 * the RX path. Using CMD_WANT_SKB doesn't work because it
2990 * stores the buffer and then wakes up this thread, by which
2991 * time another notification (that the time event started)
2992 * might already be processed unsuccessfully.
2993 */
2994 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2995 time_event_response,
2996 ARRAY_SIZE(time_event_response),
2997 iwl_mvm_rx_aux_roc, te_data);
2998
2999 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3000 &aux_roc_req);
3001
3002 if (res) {
3003 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3004 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3005 goto out_clear_te;
3006 }
3007
3008 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3009 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3010 /* should never fail */
3011 WARN_ON_ONCE(res);
3012
3013 if (res) {
3014 out_clear_te:
3015 spin_lock_bh(&mvm->time_event_lock);
3016 iwl_mvm_te_clear_data(mvm, te_data);
3017 spin_unlock_bh(&mvm->time_event_lock);
3018 }
3019
3020 return res;
3021}
3022
8ca151b5
JB		 3023static int iwl_mvm_roc(struct ieee80211_hw *hw,
3024 struct ieee80211_vif *vif,
3025 struct ieee80211_channel *channel,
d339d5ca
IP		 3026 int duration,
3027 enum ieee80211_roc_type type)
8ca151b5
JB		 3028{
3029 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3030 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3031 struct cfg80211_chan_def chandef;
31d385ae
IP		 3032 struct iwl_mvm_phy_ctxt *phy_ctxt;
3033 int ret, i;
3034
3035 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3036 duration, type);
8ca151b5 3037
6ed13164
MG		 3038 flush_work(&mvm->roc_done_wk);
3039
a6cc5163
MG		 3040 mutex_lock(&mvm->mutex);
3041
b112889c
AM		 3042 switch (vif->type) {
3043 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 3044 if (mvm->fw->ucode_capa.capa[0] &
3045 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
3046 /* Use aux roc framework (HS20) */
3047 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3048 vif, duration);
3049 goto out_unlock;
3050 }
3051 IWL_ERR(mvm, "hotspot not supported\n");
3052 ret = -EINVAL;
a6cc5163 3053 goto out_unlock;
b112889c
AM		 3054 case NL80211_IFTYPE_P2P_DEVICE:
3055 /* handle below */
3056 break;
3057 default:
3058 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3059 ret = -EINVAL;
3060 goto out_unlock;
8ca151b5
JB		 3061 }
3062
31d385ae
IP		 3063 for (i = 0; i < NUM_PHY_CTX; i++) {
3064 phy_ctxt = &mvm->phy_ctxts[i];
3065 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3066 continue;
3067
3068 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3069 /*
3070 * Unbind the P2P_DEVICE from the current PHY context,
3071 * and if the PHY context is not used remove it.
3072 */
3073 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3074 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3075 goto out_unlock;
3076
3077 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3078
3079 /* Bind the P2P_DEVICE to the current PHY Context */
3080 mvmvif->phy_ctxt = phy_ctxt;
3081
3082 ret = iwl_mvm_binding_add_vif(mvm, vif);
3083 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3084 goto out_unlock;
3085
3086 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3087 goto schedule_time_event;
3088 }
3089 }
3090
3091 /* Need to update the PHY context only if the ROC channel changed */
3092 if (channel == mvmvif->phy_ctxt->channel)
3093 goto schedule_time_event;
3094
8ca151b5 3095 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3096
31d385ae
IP		 3097 /*
3098 * Change the PHY context configuration as it is currently referenced
3099 * only by the P2P Device MAC
3100 */
3101 if (mvmvif->phy_ctxt->ref == 1) {
3102 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3103 &chandef, 1, 1);
3104 if (ret)
3105 goto out_unlock;
3106 } else {
3107 /*
3108 * The PHY context is shared with other MACs. Need to remove the
3109 * P2P Device from the binding, allocate an new PHY context and
3110 * create a new binding
3111 */
3112 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3113 if (!phy_ctxt) {
3114 ret = -ENOSPC;
3115 goto out_unlock;
3116 }
3117
3118 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3119 1, 1);
3120 if (ret) {
3121 IWL_ERR(mvm, "Failed to change PHY context\n");
3122 goto out_unlock;
3123 }
3124
3125 /* Unbind the P2P_DEVICE from the current PHY context */
3126 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3127 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3128 goto out_unlock;
3129
3130 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3131
3132 /* Bind the P2P_DEVICE to the new allocated PHY context */
3133 mvmvif->phy_ctxt = phy_ctxt;
3134
3135 ret = iwl_mvm_binding_add_vif(mvm, vif);
3136 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3137 goto out_unlock;
3138
3139 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3140 }
3141
3142schedule_time_event:
8ca151b5 3143 /* Schedule the time events */
e635c797 3144 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3145
31d385ae 3146out_unlock:
8ca151b5
JB		 3147 mutex_unlock(&mvm->mutex);
3148 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3149 return ret;
3150}
3151
3152static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3153{
3154 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3155
3156 IWL_DEBUG_MAC80211(mvm, "enter\n");
3157
3158 mutex_lock(&mvm->mutex);
bf5da87f 3159 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3160 mutex_unlock(&mvm->mutex);
3161
3162 IWL_DEBUG_MAC80211(mvm, "leave\n");
3163 return 0;
3164}
3165
b08c1d97
LC		 3166static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3167 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3168{
fe0f2de3
IP		 3169 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3170 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3171 int ret;
3172
b08c1d97
LC		 3173 lockdep_assert_held(&mvm->mutex);
3174
53a9d61e 3175 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3176
fe0f2de3
IP		 3177 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3178 if (!phy_ctxt) {
3179 ret = -ENOSPC;
3180 goto out;
3181 }
8ca151b5 3182
dcbc3e1a 3183 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3184 ctx->rx_chains_static,
3185 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3186 if (ret) {
3187 IWL_ERR(mvm, "Failed to add PHY context\n");
3188 goto out;
3189 }
3190
53a9d61e 3191 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3192 *phy_ctxt_id = phy_ctxt->id;
3193out:
b08c1d97
LC		 3194 return ret;
3195}
3196
3197static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3198 struct ieee80211_chanctx_conf *ctx)
3199{
3200 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3201 int ret;
3202
3203 mutex_lock(&mvm->mutex);
3204 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3205 mutex_unlock(&mvm->mutex);
b08c1d97 3206
8ca151b5
JB		 3207 return ret;
3208}
3209
b08c1d97
LC		 3210static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3211 struct ieee80211_chanctx_conf *ctx)
3212{
3213 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3214 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3215
3216 lockdep_assert_held(&mvm->mutex);
3217
3218 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3219}
3220
8ca151b5
JB		 3221static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3222 struct ieee80211_chanctx_conf *ctx)
3223{
3224 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3225
3226 mutex_lock(&mvm->mutex);
b08c1d97 3227 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3228 mutex_unlock(&mvm->mutex);
3229}
3230
3231static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3232 struct ieee80211_chanctx_conf *ctx,
3233 u32 changed)
3234{
3235 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3236 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3237 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3238
31d385ae
IP		 3239 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3240 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3241 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3242 IEEE80211_CHANCTX_CHANGE_RADAR |
3243 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3244 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3245 phy_ctxt->ref, changed))
3246 return;
3247
8ca151b5 3248 mutex_lock(&mvm->mutex);
4d66449a 3249 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3250 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3251 ctx->rx_chains_static,
3252 ctx->rx_chains_dynamic);
3253 mutex_unlock(&mvm->mutex);
3254}
3255
b08c1d97
LC		 3256static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3257 struct ieee80211_vif *vif,
f0c97783
LC		 3258 struct ieee80211_chanctx_conf *ctx,
3259 bool switching_chanctx)
8ca151b5 3260{
fe0f2de3
IP		 3261 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3262 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3263 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3264 int ret;
3265
b08c1d97 3266 lockdep_assert_held(&mvm->mutex);
8ca151b5 3267
fe0f2de3 3268 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3269
3270 switch (vif->type) {
3271 case NL80211_IFTYPE_AP:
4741dd04
LC		 3272 /* only needed if we're switching chanctx (i.e. during CSA) */
3273 if (switching_chanctx) {
bd3398e2
AO		 3274 mvmvif->ap_ibss_active = true;
3275 break;
3276 }
5023d966 3277 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3278 /*
3279 * The AP binding flow is handled as part of the start_ap flow
5023d966 3280 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3281 */
3282 ret = 0;
b08c1d97 3283 goto out;
8ca151b5 3284 case NL80211_IFTYPE_STATION:
2533edce 3285 break;
8ca151b5 3286 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3287 /* always disable PS when a monitor interface is active */
3288 mvmvif->ps_disabled = true;
8ca151b5
JB		 3289 break;
3290 default:
3291 ret = -EINVAL;
b08c1d97 3292 goto out;
8ca151b5
JB		 3293 }
3294
3295 ret = iwl_mvm_binding_add_vif(mvm, vif);
3296 if (ret)
b08c1d97 3297 goto out;
8ca151b5
JB		 3298
3299 /*
92d85562
AB		 3300 * Power state must be updated before quotas,
3301 * otherwise fw will complain.
3302 */
999609f1 3303 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3304
3305 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3306 * interfaces. For the other types, the bss_info changed flow
3307 * will handle quota settings.
3308 */
3309 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3310 mvmvif->monitor_active = true;
7754ae79 3311 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3312 if (ret)
3313 goto out_remove_binding;
3314 }
3315
bd3398e2 3316 /* Handle binding during CSA */
a57c688d 3317 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3318 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3319 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3320 }
3321
4741dd04 3322 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3323 u32 duration = 2 * vif->bss_conf.beacon_int;
3324
3325 /* iwl_mvm_protect_session() reads directly from the
3326 * device (the system time), so make sure it is
3327 * available.
3328 */
3329 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3330 if (ret)
3331 goto out_remove_binding;
3332
3333 /* Protect the session to make sure we hear the first
3334 * beacon on the new channel.
3335 */
3336 iwl_mvm_protect_session(mvm, vif, duration, duration,
3337 vif->bss_conf.beacon_int / 2,
3338 true);
3339
3340 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3341
7754ae79 3342 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3343 }
3344
b08c1d97 3345 goto out;
8ca151b5 3346
b08c1d97 3347out_remove_binding:
8ca151b5 3348 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3349 iwl_mvm_power_update_mac(mvm);
b08c1d97 3350out:
8ca151b5
JB		 3351 if (ret)
3352 mvmvif->phy_ctxt = NULL;
3353 return ret;
3354}
b08c1d97
LC		 3355static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3356 struct ieee80211_vif *vif,
3357 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3358{
3359 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3360 int ret;
8ca151b5
JB		 3361
3362 mutex_lock(&mvm->mutex);
f0c97783 3363 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3364 mutex_unlock(&mvm->mutex);
3365
3366 return ret;
3367}
3368
3369static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3370 struct ieee80211_vif *vif,
f0c97783
LC		 3371 struct ieee80211_chanctx_conf *ctx,
3372 bool switching_chanctx)
b08c1d97
LC		 3373{
3374 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3375 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3376
3377 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3378
3379 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3380
8ca151b5 3381 switch (vif->type) {
5023d966 3382 case NL80211_IFTYPE_ADHOC:
b08c1d97 3383 goto out;
8ca151b5 3384 case NL80211_IFTYPE_MONITOR:
1e1391ca 3385 mvmvif->monitor_active = false;
2533edce 3386 mvmvif->ps_disabled = false;
8ca151b5 3387 break;
bd3398e2
AO		 3388 case NL80211_IFTYPE_AP:
3389 /* This part is triggered only during CSA */
4741dd04 3390 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3391 goto out;
bd3398e2 3392
7ef0aab6
AO		 3393 mvmvif->csa_countdown = false;
3394
003e5236
AO		 3395 /* Set CS bit on all the stations */
3396 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3397
3398 /* Save blocked iface, the timeout is set on the next beacon */
3399 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3400
bd3398e2 3401 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3402 break;
3403 case NL80211_IFTYPE_STATION:
3404 if (!switching_chanctx)
3405 break;
3406
3407 disabled_vif = vif;
3408
3dfd3a97 3409 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3410 break;
8ca151b5
JB		 3411 default:
3412 break;
3413 }
3414
7754ae79 3415 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3416 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3417
b08c1d97 3418out:
a11e144e 3419 mvmvif->phy_ctxt = NULL;
999609f1 3420 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3421}
3422
3423static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3424 struct ieee80211_vif *vif,
3425 struct ieee80211_chanctx_conf *ctx)
3426{
3427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3428
3429 mutex_lock(&mvm->mutex);
f0c97783 3430 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3431 mutex_unlock(&mvm->mutex);
3432}
3433
50cc9574
LC		 3434static int
3435iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3436 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3437{
b08c1d97
LC		 3438 int ret;
3439
b08c1d97 3440 mutex_lock(&mvm->mutex);
f0c97783 3441 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3442 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3443
3444 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3445 if (ret) {
3446 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3447 goto out_reassign;
3448 }
3449
f0c97783
LC		 3450 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3451 true);
b08c1d97
LC		 3452 if (ret) {
3453 IWL_ERR(mvm,
3454 "failed to assign new_ctx during channel switch\n");
3455 goto out_remove;
3456 }
3457
f697267f
AN		 3458 /* we don't support TDLS during DCM - can be caused by channel switch */
3459 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3460 iwl_mvm_teardown_tdls_peers(mvm);
3461
b08c1d97
LC		 3462 goto out;
3463
3464out_remove:
3465 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3466
3467out_reassign:
6fd1fb63 3468 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3469 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3470 goto out_restart;
3471 }
3472
6fd1fb63
LC		 3473 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3474 true)) {
b08c1d97
LC		 3475 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3476 goto out_restart;
3477 }
3478
3479 goto out;
3480
3481out_restart:
3482 /* things keep failing, better restart the hw */
3483 iwl_mvm_nic_restart(mvm, false);
3484
3485out:
3486 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3487
3488 return ret;
3489}
3490
48a256e8
LC		 3491static int
3492iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3493 struct ieee80211_vif_chanctx_switch *vifs)
3494{
3495 int ret;
3496
3497 mutex_lock(&mvm->mutex);
3498 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3499
3500 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3501 true);
3502 if (ret) {
3503 IWL_ERR(mvm,
3504 "failed to assign new_ctx during channel switch\n");
3505 goto out_reassign;
3506 }
3507
3508 goto out;
3509
3510out_reassign:
3511 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3512 true)) {
3513 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3514 goto out_restart;
3515 }
3516
3517 goto out;
3518
3519out_restart:
3520 /* things keep failing, better restart the hw */
3521 iwl_mvm_nic_restart(mvm, false);
3522
3523out:
3524 mutex_unlock(&mvm->mutex);
3525
3526 return ret;
3527}
3528
50cc9574
LC		 3529static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3530 struct ieee80211_vif_chanctx_switch *vifs,
3531 int n_vifs,
3532 enum ieee80211_chanctx_switch_mode mode)
3533{
3534 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3535 int ret;
3536
3537 /* we only support a single-vif right now */
3538 if (n_vifs > 1)
3539 return -EOPNOTSUPP;
3540
3541 switch (mode) {
3542 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3543 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3544 break;
3545 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3546 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3547 break;
3548 default:
3549 ret = -EOPNOTSUPP;
3550 break;
3551 }
3552
b08c1d97
LC		 3553 return ret;
3554}
3555
8ca151b5
JB		 3556static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3557 struct ieee80211_sta *sta,
3558 bool set)
3559{
3560 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3561 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3562
3563 if (!mvm_sta || !mvm_sta->vif) {
3564 IWL_ERR(mvm, "Station is not associated to a vif\n");
3565 return -EINVAL;
3566 }
3567
3568 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3569}
3570
507cadf2
DS		 3571#ifdef CONFIG_NL80211_TESTMODE
3572static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3573 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3574 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3575 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3576};
3577
3578static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3579 struct ieee80211_vif *vif,
3580 void *data, int len)
3581{
3582 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3583 int err;
3584 u32 noa_duration;
3585
3586 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3587 if (err)
3588 return err;
3589
3590 if (!tb[IWL_MVM_TM_ATTR_CMD])
3591 return -EINVAL;
3592
3593 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3594 case IWL_MVM_TM_CMD_SET_NOA:
3595 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3596 !vif->bss_conf.enable_beacon ||
3597 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3598 return -EINVAL;
3599
3600 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3601 if (noa_duration >= vif->bss_conf.beacon_int)
3602 return -EINVAL;
3603
3604 mvm->noa_duration = noa_duration;
3605 mvm->noa_vif = vif;
3606
7754ae79 3607 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3608 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3609 /* must be associated client vif - ignore authorized */
3610 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3611 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3612 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3613 return -EINVAL;
3614
3615 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3616 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3617 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3618 }
3619
3620 return -EOPNOTSUPP;
3621}
3622
3623static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3624 struct ieee80211_vif *vif,
3625 void *data, int len)
3626{
3627 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3628 int err;
3629
3630 mutex_lock(&mvm->mutex);
3631 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3632 mutex_unlock(&mvm->mutex);
3633
3634 return err;
3635}
3636#endif
3637
622e3f9b
LC		 3638static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3639 struct ieee80211_vif *vif,
3640 struct ieee80211_channel_switch *chsw)
3641{
3642 /* By implementing this operation, we prevent mac80211 from
3643 * starting its own channel switch timer, so that we can call
3644 * ieee80211_chswitch_done() ourselves at the right time
3645 * (which is when the absence time event starts).
3646 */
3647
3648 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3649 "dummy channel switch op\n");
3650}
3651
f028905c
LC		 3652static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3653 struct ieee80211_vif *vif,
3654 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3655{
3656 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3657 struct ieee80211_vif *csa_vif;
f6c34820 3658 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3659 u32 apply_time;
f028905c 3660 int ret;
bd3398e2
AO		 3661
3662 mutex_lock(&mvm->mutex);
664322fa 3663
81d62d5a
JB		 3664 mvmvif->csa_failed = false;
3665
6b20d774 3666 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3667 chsw->chandef.center_freq1);
6b20d774 3668
21023b1e 3669 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3670
6b20d774
LC		 3671 switch (vif->type) {
3672 case NL80211_IFTYPE_AP:
3673 csa_vif =
3674 rcu_dereference_protected(mvm->csa_vif,
3675 lockdep_is_held(&mvm->mutex));
3676 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3677 "Another CSA is already in progress")) {
3678 ret = -EBUSY;
3679 goto out_unlock;
3680 }
3681
3682 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3683
7ef0aab6
AO		 3684 if (WARN_ONCE(mvmvif->csa_countdown,
3685 "Previous CSA countdown didn't complete")) {
3686 ret = -EBUSY;
3687 goto out_unlock;
3688 }
3689
6b20d774 3690 break;
dc88b4ba 3691 case NL80211_IFTYPE_STATION:
4500e133
LC		 3692 /* Schedule the time event to a bit before beacon 1,
3693 * to make sure we're in the new channel when the
3694 * GO/AP arrives.
3695 */
3696 apply_time = chsw->device_timestamp +
3697 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3698 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3699
3700 if (chsw->block_tx)
3701 iwl_mvm_csa_client_absent(mvm, vif);
3702
4500e133 3703 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3704 apply_time);
c6e0a3e0
LC		 3705 if (mvmvif->bf_data.bf_enabled) {
3706 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3707 if (ret)
3708 goto out_unlock;
3709 }
3710
dc88b4ba 3711 break;
6b20d774
LC		 3712 default:
3713 break;
3714 }
bd3398e2 3715
f6c34820
LC		 3716 mvmvif->ps_disabled = true;
3717
3718 ret = iwl_mvm_power_update_ps(mvm);
3719 if (ret)
3720 goto out_unlock;
f028905c 3721
e198f5e7
AN		 3722 /* we won't be on this channel any longer */
3723 iwl_mvm_teardown_tdls_peers(mvm);
3724
bd3398e2
AO		 3725out_unlock:
3726 mutex_unlock(&mvm->mutex);
f028905c
LC		 3727
3728 return ret;
bd3398e2
AO		 3729}
3730
f6c34820
LC		 3731static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3732 struct ieee80211_vif *vif)
3733{
3734 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3736 int ret;
3737
3738 mutex_lock(&mvm->mutex);
3739
81d62d5a
JB		 3740 if (mvmvif->csa_failed) {
3741 mvmvif->csa_failed = false;
3742 ret = -EIO;
3743 goto out_unlock;
3744 }
3745
a57c688d
LC		 3746 if (vif->type == NL80211_IFTYPE_STATION) {
3747 struct iwl_mvm_sta *mvmsta;
3748
3749 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3750 mvmvif->ap_sta_id);
3751
3752 if (WARN_ON(!mvmsta)) {
3753 ret = -EIO;
3754 goto out_unlock;
3755 }
3756
3757 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3758
3759 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3760
3761 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3762 if (ret)
3763 goto out_unlock;
686e7fe1
LC		 3764
3765 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3766 }
3767
f6c34820
LC		 3768 mvmvif->ps_disabled = false;
3769
3770 ret = iwl_mvm_power_update_ps(mvm);
3771
a57c688d 3772out_unlock:
f6c34820
LC		 3773 mutex_unlock(&mvm->mutex);
3774
3775 return ret;
3776}
3777
c5b0e7c0
EG		 3778static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3779 struct ieee80211_vif *vif, u32 queues, bool drop)
3780{
3781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3782 struct iwl_mvm_vif *mvmvif;
3783 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3784 struct ieee80211_sta *sta;
3785 int i;
3786 u32 msk = 0;
c5b0e7c0
EG		 3787
3788 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3789 return;
3790
3791 mutex_lock(&mvm->mutex);
3792 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3793
a0f6bf2a
AN		 3794 /* flush the AP-station and all TDLS peers */
3795 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3796 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3797 lockdep_is_held(&mvm->mutex));
3798 if (IS_ERR_OR_NULL(sta))
3799 continue;
3800
3801 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3802 if (mvmsta->vif != vif)
3803 continue;
3804
3805 /* make sure only TDLS peers or the AP are flushed */
3806 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3807
3808 msk |= mvmsta->tfd_queue_msk;
480acbce 3809 }
c5b0e7c0 3810
6d440b25
EG		 3811 if (drop) {
3812 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3813 IWL_ERR(mvm, "flush request fail\n");
3814 mutex_unlock(&mvm->mutex);
3815 } else {
3816 mutex_unlock(&mvm->mutex);
4e6c48e0 3817
6d440b25
EG		 3818 /* this can take a while, and we may need/want other operations
3819 * to succeed while doing this, so do it without the mutex held
3820 */
3821 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3822 }
c5b0e7c0
EG		 3823}
3824
91a8bcde
JB		 3825static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3826 struct survey_info *survey)
3827{
3828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3829 int ret;
3830
3831 memset(survey, 0, sizeof(*survey));
3832
3833 /* only support global statistics right now */
3834 if (idx != 0)
3835 return -ENOENT;
3836
3837 if (!(mvm->fw->ucode_capa.capa[0] &
3838 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3839 return -ENOENT;
3840
3841 mutex_lock(&mvm->mutex);
3842
3843 if (mvm->ucode_loaded) {
33cef925 3844 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3845 if (ret)
3846 goto out;
3847 }
3848
3849 survey->filled = SURVEY_INFO_TIME |
3850 SURVEY_INFO_TIME_RX |
3851 SURVEY_INFO_TIME_TX |
3852 SURVEY_INFO_TIME_SCAN;
3853 survey->time = mvm->accu_radio_stats.on_time_rf +
3854 mvm->radio_stats.on_time_rf;
3855 do_div(survey->time, USEC_PER_MSEC);
3856
3857 survey->time_rx = mvm->accu_radio_stats.rx_time +
3858 mvm->radio_stats.rx_time;
3859 do_div(survey->time_rx, USEC_PER_MSEC);
3860
3861 survey->time_tx = mvm->accu_radio_stats.tx_time +
3862 mvm->radio_stats.tx_time;
3863 do_div(survey->time_tx, USEC_PER_MSEC);
3864
3865 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3866 mvm->radio_stats.on_time_scan;
3867 do_div(survey->time_scan, USEC_PER_MSEC);
3868
10a7c028 3869 ret = 0;
91a8bcde
JB		 3870 out:
3871 mutex_unlock(&mvm->mutex);
3872 return ret;
3873}
3874
33cef925
JB		 3875static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3876 struct ieee80211_vif *vif,
3877 struct ieee80211_sta *sta,
3878 struct station_info *sinfo)
3879{
3880 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3881 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3882 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3883
3884 if (!(mvm->fw->ucode_capa.capa[0] &
3885 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3886 return;
3887
3888 /* if beacon filtering isn't on mac80211 does it anyway */
3889 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3890 return;
3891
3892 if (!vif->bss_conf.assoc)
3893 return;
3894
3895 mutex_lock(&mvm->mutex);
3896
3897 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3898 goto unlock;
3899
3900 if (iwl_mvm_request_statistics(mvm, false))
3901 goto unlock;
3902
3903 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3904 mvmvif->beacon_stats.accu_num_beacons;
3905 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3906 if (mvmvif->beacon_stats.avg_signal) {
3907 /* firmware only reports a value after RXing a few beacons */
3908 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3909 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3910 }
3911 unlock:
3912 mutex_unlock(&mvm->mutex);
3913}
3914
d42f5350
EG		 3915static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3916 struct ieee80211_vif *vif,
3917 const struct ieee80211_event *event)
3918{
5d4f929e 3919#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3920 do { \
3921 if ((_cnt) && --(_cnt)) \
3922 break; \
5d4f929e 3923 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3924 } while (0)
3925
3926 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3927 struct iwl_fw_dbg_trigger_tlv *trig;
3928 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3929
3930 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3931 return;
3932
d42f5350
EG		 3933 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3934 trig_mlme = (void *)trig->data;
3935 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3936 return;
3937
d42f5350
EG		 3938 if (event->u.mlme.data == ASSOC_EVENT) {
3939 if (event->u.mlme.status == MLME_DENIED)
3940 CHECK_MLME_TRIGGER(mvm, trig, buf,
3941 trig_mlme->stop_assoc_denied,
3942 "DENIED ASSOC: reason %d",
3943 event->u.mlme.reason);
3944 else if (event->u.mlme.status == MLME_TIMEOUT)
3945 CHECK_MLME_TRIGGER(mvm, trig, buf,
3946 trig_mlme->stop_assoc_timeout,
3947 "ASSOC TIMEOUT");
3948 } else if (event->u.mlme.data == AUTH_EVENT) {
3949 if (event->u.mlme.status == MLME_DENIED)
3950 CHECK_MLME_TRIGGER(mvm, trig, buf,
3951 trig_mlme->stop_auth_denied,
3952 "DENIED AUTH: reason %d",
3953 event->u.mlme.reason);
3954 else if (event->u.mlme.status == MLME_TIMEOUT)
3955 CHECK_MLME_TRIGGER(mvm, trig, buf,
3956 trig_mlme->stop_auth_timeout,
3957 "AUTH TIMEOUT");
3958 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3959 CHECK_MLME_TRIGGER(mvm, trig, buf,
3960 trig_mlme->stop_rx_deauth,
3961 "DEAUTH RX %d", event->u.mlme.reason);
3962 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3963 CHECK_MLME_TRIGGER(mvm, trig, buf,
3964 trig_mlme->stop_tx_deauth,
3965 "DEAUTH TX %d", event->u.mlme.reason);
3966 }
3967#undef CHECK_MLME_TRIGGER
3968}
3969
e5209263 3970const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3971 .tx = iwl_mvm_mac_tx,
3972 .ampdu_action = iwl_mvm_mac_ampdu_action,
3973 .start = iwl_mvm_mac_start,
cf2c92d8 3974 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3975 .stop = iwl_mvm_mac_stop,
3976 .add_interface = iwl_mvm_mac_add_interface,
3977 .remove_interface = iwl_mvm_mac_remove_interface,
3978 .config = iwl_mvm_mac_config,
e59647ea 3979 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3980 .configure_filter = iwl_mvm_configure_filter,
3981 .bss_info_changed = iwl_mvm_bss_info_changed,
3982 .hw_scan = iwl_mvm_mac_hw_scan,
3983 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3984 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3985 .sta_state = iwl_mvm_mac_sta_state,
3986 .sta_notify = iwl_mvm_mac_sta_notify,
3987 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3988 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3989 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3990 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3991 .conf_tx = iwl_mvm_mac_conf_tx,
3992 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3993 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3994 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3995 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3996 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3997 .set_key = iwl_mvm_mac_set_key,
3998 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3999 .remain_on_channel = iwl_mvm_roc,
4000 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4001 .add_chanctx = iwl_mvm_add_chanctx,
4002 .remove_chanctx = iwl_mvm_remove_chanctx,
4003 .change_chanctx = iwl_mvm_change_chanctx,
4004 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4005 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4006 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4007
5023d966
JB		 4008 .start_ap = iwl_mvm_start_ap_ibss,
4009 .stop_ap = iwl_mvm_stop_ap_ibss,
4010 .join_ibss = iwl_mvm_start_ap_ibss,
4011 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4012
4013 .set_tim = iwl_mvm_set_tim,
4014
622e3f9b 4015 .channel_switch = iwl_mvm_channel_switch,
f028905c 4016 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4017 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4018
1d3c3f63
AN		 4019 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4020 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4021 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4022
d42f5350
EG		 4023 .event_callback = iwl_mvm_mac_event_callback,
4024
507cadf2
DS		 4025 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4026
8ca151b5
JB		 4027#ifdef CONFIG_PM_SLEEP
4028 /* look at d3.c */
4029 .suspend = iwl_mvm_suspend,
4030 .resume = iwl_mvm_resume,
4031 .set_wakeup = iwl_mvm_set_wakeup,
4032 .set_rekey_data = iwl_mvm_set_rekey_data,
4033#if IS_ENABLED(CONFIG_IPV6)
4034 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4035#endif
4036 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4037#endif
91a8bcde 4038 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4039 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4040};
Linux kernel - Deliverables
This page took 0.460308 seconds and 5 git commands to generate.