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iwlwifi: mvm: fix ROC reference accounting
[linux-2.6-block.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",
321 PTR_RET(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",
8ba2d7a1
EH		 337 PTR_RET(regd));
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 |
455 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fb98be5e 456
8ca151b5
JB		 457 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
458 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 459 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 460
461 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 462 BIT(NL80211_IFTYPE_P2P_CLIENT) |
463 BIT(NL80211_IFTYPE_AP) |
464 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 465 BIT(NL80211_IFTYPE_P2P_DEVICE) |
466 BIT(NL80211_IFTYPE_ADHOC);
5023d966 467
a2f73b6c 468 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 469 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
470 if (iwl_mvm_is_lar_supported(mvm))
471 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
472 else
473 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
474 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 475
3e56eadf
JB		 476 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
477 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
478
94bbed72 479 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 480
8ca151b5
JB		 481 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
482 hw->wiphy->n_iface_combinations =
483 ARRAY_SIZE(iwl_mvm_iface_combinations);
484
c451e6d4 485 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 486 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 487 /* we can compensate an offset of up to 3 channels = 15 MHz */
488 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 489
490 /* Extract MAC address */
491 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
492 hw->wiphy->addresses = mvm->addresses;
493 hw->wiphy->n_addresses = 1;
831e85f3
IP		 494
495 /* Extract additional MAC addresses if available */
496 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
497 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
498
499 for (i = 1; i < num_mac; i++) {
500 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 501 ETH_ALEN);
831e85f3 502 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 503 hw->wiphy->n_addresses++;
504 }
505
fe0f2de3
IP		 506 iwl_mvm_reset_phy_ctxts(mvm);
507
999d2568 508 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 509
8ca151b5
JB		 510 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
511
507e4cda
LC		 512 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
513 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
514
515 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
516 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
517 else
518 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
519
8ca151b5
JB		 520 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
521 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
522 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 523 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 524 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
525 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
526
c9faccc9
ES		 527 if ((mvm->fw->ucode_capa.capa[0] &
528 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
529 (mvm->fw->ucode_capa.api[0] &
530 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 531 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
532 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
533 }
534
8ca151b5
JB		 535 hw->wiphy->hw_version = mvm->trans->hw_id;
536
ade50652 537 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 538 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
539 else
540 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
541
9954b37c
EG		 542 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
543 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
544 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
545 /* we create the 802.11 header and zero length SSID IE. */
546 hw->wiphy->max_sched_scan_ie_len =
547 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 548
8ca151b5 549 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 550 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 551 NL80211_FEATURE_P2P_GO_OPPPS |
552 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 553 NL80211_FEATURE_STATIC_SMPS |
554 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 555
f1daa00e
AO		 556 if (mvm->fw->ucode_capa.capa[0] &
557 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
558 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 559 if (mvm->fw->ucode_capa.capa[0] &
560 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
561 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 562
73897bd1
AO		 563 if (mvm->fw->ucode_capa.capa[0] &
564 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
565 hw->wiphy->features |=
566 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
567
568 if (mvm->fw->ucode_capa.capa[0] &
569 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
570 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
571
8ca151b5
JB		 572 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
573
e36e5433 574 /* currently FW API supports only one optional cipher scheme */
9ddca860 575 if (mvm->fw->cs[0].cipher) {
e36e5433 576 mvm->hw->n_cipher_schemes = 1;
9ddca860 577 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 578 }
579
8ca151b5 580#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 581 if (iwl_mvm_is_d0i3_supported(mvm) &&
582 device_can_wakeup(mvm->trans->dev)) {
583 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
584 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 585 }
586
587 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 588 mvm->trans->ops->d3_suspend &&
589 mvm->trans->ops->d3_resume &&
590 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 591 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
592 WIPHY_WOWLAN_DISCONNECT |
593 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
594 WIPHY_WOWLAN_RFKILL_RELEASE |
595 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 596 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 597 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
598 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
599 WIPHY_WOWLAN_4WAY_HANDSHAKE;
600
601 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
602 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
603 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 604 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 605 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
606 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 607 }
608#endif
609
77736923
EP		 610#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
611 /* assign default bcast filtering configuration */
612 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
613#endif
614
8ca151b5
JB		 615 ret = iwl_mvm_leds_init(mvm);
616 if (ret)
617 return ret;
618
d8f1c515
AN		 619 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
620 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
621 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
622 }
623
1d3c3f63
AN		 624 if (mvm->fw->ucode_capa.capa[0] &
625 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
626 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
627 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
628 }
629
b7327d89
EG		 630 ret = ieee80211_register_hw(mvm->hw);
631 if (ret)
632 iwl_mvm_leds_exit(mvm);
633
634 return ret;
8ca151b5
JB		 635}
636
b2492501
AN		 637static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
638 struct ieee80211_sta *sta,
639 struct sk_buff *skb)
640{
641 struct iwl_mvm_sta *mvmsta;
642 bool defer = false;
643
644 /*
645 * double check the IN_D0I3 flag both before and after
646 * taking the spinlock, in order to prevent taking
647 * the spinlock when not needed.
648 */
649 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
650 return false;
651
652 spin_lock(&mvm->d0i3_tx_lock);
653 /*
654 * testing the flag again ensures the skb dequeue
655 * loop (on d0i3 exit) hasn't run yet.
656 */
657 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
658 goto out;
659
660 mvmsta = iwl_mvm_sta_from_mac80211(sta);
661 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
662 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
663 goto out;
664
665 __skb_queue_tail(&mvm->d0i3_tx, skb);
666 ieee80211_stop_queues(mvm->hw);
667
668 /* trigger wakeup */
669 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
670 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
671
672 defer = true;
673out:
674 spin_unlock(&mvm->d0i3_tx_lock);
675 return defer;
676}
677
8ca151b5
JB		 678static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
679 struct ieee80211_tx_control *control,
680 struct sk_buff *skb)
681{
682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 683 struct ieee80211_sta *sta = control->sta;
684 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
685 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 686
9ee718aa
EL		 687 if (iwl_mvm_is_radio_killed(mvm)) {
688 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 689 goto drop;
690 }
691
398e8c6c 692 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 693 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
694 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 695 goto drop;
696
3e56eadf
JB		 697 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
698 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
699 ieee80211_is_mgmt(hdr->frame_control) &&
700 !ieee80211_is_deauth(hdr->frame_control) &&
701 !ieee80211_is_disassoc(hdr->frame_control) &&
702 !ieee80211_is_action(hdr->frame_control)))
703 sta = NULL;
704
705 if (sta) {
b2492501
AN		 706 if (iwl_mvm_defer_tx(mvm, sta, skb))
707 return;
3e56eadf 708 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 709 goto drop;
710 return;
711 }
712
713 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
714 goto drop;
715 return;
716 drop:
717 ieee80211_free_txskb(hw, skb);
718}
719
205e2210
EG		 720static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
721{
722 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
723 return false;
724 return true;
725}
726
727static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
728{
729 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
730 return false;
731 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
732 return true;
733
734 /* enabled by default */
735 return true;
736}
737
8ca151b5
JB		 738static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
739 struct ieee80211_vif *vif,
740 enum ieee80211_ampdu_mlme_action action,
741 struct ieee80211_sta *sta, u16 tid,
742 u16 *ssn, u8 buf_size)
743{
744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
745 int ret;
b2492501 746 bool tx_agg_ref = false;
8ca151b5
JB		 747
748 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
749 sta->addr, tid, action);
750
751 if (!(mvm->nvm_data->sku_cap_11n_enable))
752 return -EACCES;
753
b2492501 754 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 755 switch (action) {
756 case IEEE80211_AMPDU_TX_START:
757 case IEEE80211_AMPDU_TX_STOP_CONT:
758 case IEEE80211_AMPDU_TX_STOP_FLUSH:
759 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
760 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 761 /*
9256c205
EP		 762 * for tx start, wait synchronously until D0i3 exit to
763 * get the correct sequence number for the tid.
764 * additionally, some other ampdu actions use direct
765 * target access, which is not handled automatically
766 * by the trans layer (unlike commands), so wait for
767 * d0i3 exit in these cases as well.
b2492501 768 */
d40fc489
GG		 769 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
770 if (ret)
771 return ret;
772
773 tx_agg_ref = true;
9256c205
EP		 774 break;
775 default:
776 break;
b2492501
AN		 777 }
778
8ca151b5
JB		 779 mutex_lock(&mvm->mutex);
780
781 switch (action) {
782 case IEEE80211_AMPDU_RX_START:
205e2210 783 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 784 ret = -EINVAL;
785 break;
786 }
787 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
788 break;
789 case IEEE80211_AMPDU_RX_STOP:
790 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
791 break;
792 case IEEE80211_AMPDU_TX_START:
205e2210 793 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 794 ret = -EINVAL;
795 break;
796 }
8ca151b5
JB		 797 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
798 break;
799 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 800 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
801 break;
8ca151b5
JB		 802 case IEEE80211_AMPDU_TX_STOP_FLUSH:
803 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 804 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 805 break;
806 case IEEE80211_AMPDU_TX_OPERATIONAL:
807 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
808 break;
809 default:
810 WARN_ON_ONCE(1);
811 ret = -EINVAL;
812 break;
813 }
814 mutex_unlock(&mvm->mutex);
815
b2492501
AN		 816 /*
817 * If the tid is marked as started, we won't use it for offloaded
818 * traffic on the next D0i3 entry. It's safe to unref.
819 */
820 if (tx_agg_ref)
821 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
822
8ca151b5
JB		 823 return ret;
824}
825
826static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
827 struct ieee80211_vif *vif)
828{
829 struct iwl_mvm *mvm = data;
830 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
831
832 mvmvif->uploaded = false;
833 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
834
8ca151b5
JB		 835 spin_lock_bh(&mvm->time_event_lock);
836 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
837 spin_unlock_bh(&mvm->time_event_lock);
838
fe0f2de3 839 mvmvif->phy_ctxt = NULL;
8a275bad 840 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 841}
842
aadede6e
JB		 843static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
844 const void *data, size_t datalen)
845{
846 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
847 ssize_t bytes_read;
848 ssize_t bytes_read_trans;
849
850 if (offset < dump_ptrs->op_mode_len) {
851 bytes_read = min_t(ssize_t, count,
852 dump_ptrs->op_mode_len - offset);
853 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
854 bytes_read);
855 offset += bytes_read;
856 count -= bytes_read;
857
858 if (count == 0)
859 return bytes_read;
860 } else {
861 bytes_read = 0;
862 }
863
864 if (!dump_ptrs->trans_ptr)
865 return bytes_read;
866
867 offset -= dump_ptrs->op_mode_len;
868 bytes_read_trans = min_t(ssize_t, count,
869 dump_ptrs->trans_ptr->len - offset);
870 memcpy(buffer + bytes_read,
871 (u8 *)dump_ptrs->trans_ptr->data + offset,
872 bytes_read_trans);
873
874 return bytes_read + bytes_read_trans;
875}
876
877static void iwl_mvm_free_coredump(const void *data)
878{
879 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
880
881 vfree(fw_error_dump->op_mode_ptr);
882 vfree(fw_error_dump->trans_ptr);
883 kfree(fw_error_dump);
884}
885
04fd2c28
LK		 886static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
887 struct iwl_fw_error_dump_data **dump_data)
888{
889 struct iwl_fw_error_dump_fifo *fifo_hdr;
890 u32 *fifo_data;
891 u32 fifo_len;
892 unsigned long flags;
893 int i, j;
894
895 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
896 return;
897
898 /* Pull RXF data from all RXFs */
899 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
900 /*
901 * Keep aside the additional offset that might be needed for
902 * next RXF
903 */
904 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
905
906 fifo_hdr = (void *)(*dump_data)->data;
907 fifo_data = (void *)fifo_hdr->data;
908 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
909
910 /* No need to try to read the data if the length is 0 */
911 if (fifo_len == 0)
912 continue;
913
914 /* Add a TLV for the RXF */
915 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
916 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
917
918 fifo_hdr->fifo_num = cpu_to_le32(i);
919 fifo_hdr->available_bytes =
920 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
921 RXF_RD_D_SPACE +
922 offset_diff));
923 fifo_hdr->wr_ptr =
924 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
925 RXF_RD_WR_PTR +
926 offset_diff));
927 fifo_hdr->rd_ptr =
928 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
929 RXF_RD_RD_PTR +
930 offset_diff));
931 fifo_hdr->fence_ptr =
932 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
933 RXF_RD_FENCE_PTR +
934 offset_diff));
935 fifo_hdr->fence_mode =
936 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
937 RXF_SET_FENCE_MODE +
938 offset_diff));
939
940 /* Lock fence */
941 iwl_trans_write_prph(mvm->trans,
942 RXF_SET_FENCE_MODE + offset_diff, 0x1);
943 /* Set fence pointer to the same place like WR pointer */
944 iwl_trans_write_prph(mvm->trans,
945 RXF_LD_WR2FENCE + offset_diff, 0x1);
946 /* Set fence offset */
947 iwl_trans_write_prph(mvm->trans,
948 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
949 0x0);
950
951 /* Read FIFO */
952 fifo_len /= sizeof(u32); /* Size in DWORDS */
953 for (j = 0; j < fifo_len; j++)
954 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
955 RXF_FIFO_RD_FENCE_INC +
956 offset_diff);
957 *dump_data = iwl_fw_error_next_data(*dump_data);
958 }
959
960 /* Pull TXF data from all TXFs */
961 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
962 /* Mark the number of TXF we're pulling now */
963 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
964
965 fifo_hdr = (void *)(*dump_data)->data;
966 fifo_data = (void *)fifo_hdr->data;
967 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
968
969 /* No need to try to read the data if the length is 0 */
970 if (fifo_len == 0)
971 continue;
972
973 /* Add a TLV for the FIFO */
974 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
975 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
976
977 fifo_hdr->fifo_num = cpu_to_le32(i);
978 fifo_hdr->available_bytes =
979 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
980 TXF_FIFO_ITEM_CNT));
981 fifo_hdr->wr_ptr =
982 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
983 TXF_WR_PTR));
984 fifo_hdr->rd_ptr =
985 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
986 TXF_RD_PTR));
987 fifo_hdr->fence_ptr =
988 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
989 TXF_FENCE_PTR));
990 fifo_hdr->fence_mode =
991 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
992 TXF_LOCK_FENCE));
993
994 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
995 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
996 TXF_WR_PTR);
997
998 /* Dummy-read to advance the read pointer to the head */
999 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1000
1001 /* Read FIFO */
1002 fifo_len /= sizeof(u32); /* Size in DWORDS */
1003 for (j = 0; j < fifo_len; j++)
1004 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1005 TXF_READ_MODIFY_DATA);
1006 *dump_data = iwl_fw_error_next_data(*dump_data);
1007 }
1008
1009 iwl_trans_release_nic_access(mvm->trans, &flags);
1010}
1011
b6eaa45a
EG		 1012void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1013{
1014 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1015 !mvm->fw_dump_desc)
1016 return;
1017
1018 kfree(mvm->fw_dump_desc);
1019 mvm->fw_dump_desc = NULL;
1020}
1021
e539761d
LK		 1022#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1023#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1024
4bfa47f3 1025void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1026{
1027 struct iwl_fw_error_dump_file *dump_file;
1028 struct iwl_fw_error_dump_data *dump_data;
1029 struct iwl_fw_error_dump_info *dump_info;
a549b296 1030 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1031 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1032 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1033 u32 sram_len, sram_ofs;
04fd2c28 1034 u32 file_len, fifo_data_len = 0;
addfaada 1035 u32 smem_len = mvm->cfg->smem_len;
86138324 1036 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1037
1038 lockdep_assert_held(&mvm->mutex);
1039
aadede6e 1040 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1041 if (!fw_error_dump)
1042 return;
1043
f53bf4c7
LK		 1044 /* SRAM - include stack CCM if driver knows the values for it */
1045 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1046 const struct fw_img *img;
1047
1048 img = &mvm->fw->img[mvm->cur_ucode];
1049 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1050 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1051 } else {
1052 sram_ofs = mvm->cfg->dccm_offset;
1053 sram_len = mvm->cfg->dccm_len;
1054 }
655e6d6d 1055
04fd2c28
LK		 1056 /* reading RXF/TXF sizes */
1057 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1058 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1059 int i;
1060
1061 fifo_data_len = 0;
1062
1063 /* Count RXF size */
1064 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1065 if (!mem_cfg->rxfifo_size[i])
1066 continue;
1067
1068 /* Add header info */
1069 fifo_data_len += mem_cfg->rxfifo_size[i] +
1070 sizeof(*dump_data) +
1071 sizeof(struct iwl_fw_error_dump_fifo);
1072 }
1073
1074 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1075 if (!mem_cfg->txfifo_size[i])
1076 continue;
655e6d6d 1077
04fd2c28
LK		 1078 /* Add header info */
1079 fifo_data_len += mem_cfg->txfifo_size[i] +
1080 sizeof(*dump_data) +
1081 sizeof(struct iwl_fw_error_dump_fifo);
1082 }
1083 }
655e6d6d
EG		 1084
1085 file_len = sizeof(*dump_file) +
04fd2c28 1086 sizeof(*dump_data) * 2 +
a549b296 1087 sram_len + sizeof(*dump_mem) +
04fd2c28 1088 fifo_data_len +
655e6d6d
EG		 1089 sizeof(*dump_info);
1090
e539761d
LK		 1091 /*
1092 * In 8000 HW family B-step include the ICCM (which resides separately)
1093 */
1094 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1095 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1096 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1097 IWL8260_ICCM_LEN;
1098
b6eaa45a
EG		 1099 if (mvm->fw_dump_desc)
1100 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1101 mvm->fw_dump_desc->len;
1102
addfaada
LK		 1103 /* Make room for the SMEM, if it exists */
1104 if (smem_len)
a549b296 1105 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1106
86138324
IY		 1107 /* Make room for the secondary SRAM, if it exists */
1108 if (sram2_len)
1109 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1110
5bfe6f53 1111 dump_file = vzalloc(file_len);
48eb7b34
EG		 1112 if (!dump_file) {
1113 kfree(fw_error_dump);
b6eaa45a 1114 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1115 return;
48eb7b34 1116 }
655e6d6d 1117
48eb7b34 1118 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1119
1120 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1121 dump_data = (void *)dump_file->data;
1122
1123 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1124 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1125 dump_info = (void *) dump_data->data;
1126 dump_info->device_family =
1127 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1128 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1129 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1130 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1131 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1132 sizeof(dump_info->fw_human_readable));
1133 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1134 sizeof(dump_info->dev_human_readable));
1135 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1136 sizeof(dump_info->bus_human_readable));
1137
1138 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1139 /* We only dump the FIFOs if the FW is in error state */
1140 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1141 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1142
b6eaa45a
EG		 1143 if (mvm->fw_dump_desc) {
1144 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1145 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1146 mvm->fw_dump_desc->len);
1147 dump_trig = (void *)dump_data->data;
1148 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1149 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1150
1151 /* now we can free this copy */
1152 iwl_mvm_free_fw_dump_desc(mvm);
1153 dump_data = iwl_fw_error_next_data(dump_data);
1154 }
1155
a549b296
EG		 1156 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1157 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1158 dump_mem = (void *)dump_data->data;
1159 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1160 dump_mem->offset = cpu_to_le32(sram_ofs);
1161 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1162 sram_len);
1163
addfaada
LK		 1164 if (smem_len) {
1165 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1166 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1167 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1168 dump_mem = (void *)dump_data->data;
1169 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1170 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1171 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1172 dump_mem->data, smem_len);
addfaada
LK		 1173 }
1174
86138324
IY		 1175 if (sram2_len) {
1176 dump_data = iwl_fw_error_next_data(dump_data);
1177 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1178 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1179 dump_mem = (void *)dump_data->data;
1180 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1181 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1182 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1183 dump_mem->data, sram2_len);
1184 }
1185
e539761d
LK		 1186 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1187 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1188 dump_data = iwl_fw_error_next_data(dump_data);
1189 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1190 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1191 sizeof(*dump_mem));
1192 dump_mem = (void *)dump_data->data;
1193 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1194 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1195 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1196 dump_mem->data, IWL8260_ICCM_LEN);
1197 }
1198
48eb7b34
EG		 1199 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1200 fw_error_dump->op_mode_len = file_len;
1201 if (fw_error_dump->trans_ptr)
1202 file_len += fw_error_dump->trans_ptr->len;
1203 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1204
aadede6e
JB		 1205 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1206 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1207
1208 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1209}
655e6d6d 1210
b6eaa45a
EG		 1211struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1212 .trig_desc = {
1213 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1214 },
1215};
1216
8ca151b5
JB		 1217static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1218{
58629d9d
JB		 1219 /* clear the D3 reconfig, we only need it to avoid dumping a
1220 * firmware coredump on reconfiguration, we shouldn't do that
1221 * on D3->D0 transition
1222 */
b6eaa45a
EG		 1223 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1224 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1225 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1226 }
1bd3cbc1 1227
744cb695
EP		 1228 /* cleanup all stale references (scan, roc), but keep the
1229 * ucode_down ref until reconfig is complete
1230 */
1231 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1232
8ca151b5 1233 iwl_trans_stop_device(mvm->trans);
8ca151b5 1234
9af91f46 1235 mvm->scan_status = 0;
b1873300 1236 mvm->ps_disabled = false;
31b8b343 1237 mvm->calibrating = false;
8ca151b5
JB		 1238
1239 /* just in case one was running */
1240 ieee80211_remain_on_channel_expired(mvm->hw);
1241
737719fe
AN		 1242 /*
1243 * cleanup all interfaces, even inactive ones, as some might have
1244 * gone down during the HW restart
1245 */
1246 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1247
fe0f2de3 1248 mvm->p2p_device_vif = NULL;
37577fe2 1249 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1250
1251 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1252 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1253 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1254 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1255 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1256 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1257 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1258 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1259 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1260
1261 ieee80211_wake_queues(mvm->hw);
1262
228670b2
EP		 1263 /* clear any stale d0i3 state */
1264 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1265
8ca151b5 1266 mvm->vif_count = 0;
113a0447 1267 mvm->rx_ba_sessions = 0;
d2709ad7 1268 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1269
1270 /* keep statistics ticking */
1271 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1272}
1273
a0a09243 1274int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1275{
8ca151b5
JB		 1276 int ret;
1277
a0a09243 1278 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1279
1280 /* Clean up some internal and mac80211 state on restart */
1281 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1282 iwl_mvm_restart_cleanup(mvm);
1283
1284 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1285
1286 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1287 /* Something went wrong - we need to finish some cleanup
1288 * that normally iwl_mvm_mac_restart_complete() below
1289 * would do.
1290 */
1291 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1292 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1293 }
1294
a0a09243
LC		 1295 return ret;
1296}
1297
1298static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1299{
1300 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1301 int ret;
1302
37948fcf
EP		 1303 /* Some hw restart cleanups must not hold the mutex */
1304 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1305 /*
1306 * Make sure we are out of d0i3. This is needed
1307 * to make sure the reference accounting is correct
1308 * (and there is no stale d0i3_exit_work).
1309 */
1310 wait_event_timeout(mvm->d0i3_exit_waitq,
1311 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1312 &mvm->status),
1313 HZ);
1314 }
1315
a0a09243
LC		 1316 mutex_lock(&mvm->mutex);
1317 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1318 mutex_unlock(&mvm->mutex);
1319
1320 return ret;
1321}
1322
cf2c92d8 1323static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1324{
8ca151b5
JB		 1325 int ret;
1326
1327 mutex_lock(&mvm->mutex);
1328
1329 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1330 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1331 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1332 if (ret)
1333 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1334 ret);
1335
7498cf4c
EP		 1336 /* allow transport/FW low power modes */
1337 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1338
cbd2ae2d
AN		 1339 /*
1340 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1341 * of packets the FW sent out, so we must reconnect.
1342 */
1343 iwl_mvm_teardown_tdls_peers(mvm);
1344
8ca151b5
JB		 1345 mutex_unlock(&mvm->mutex);
1346}
1347
088070a2
EP		 1348static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1349{
1350 bool exit_now;
1351
1352 if (!iwl_mvm_is_d0i3_supported(mvm))
1353 return;
1354
1355 mutex_lock(&mvm->d0i3_suspend_mutex);
1356 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1357 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1358 &mvm->d0i3_suspend_flags);
1359 mutex_unlock(&mvm->d0i3_suspend_mutex);
1360
1361 if (exit_now) {
1362 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1363 _iwl_mvm_exit_d0i3(mvm);
1364 }
6735943f
EP		 1365
1366 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1367 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1368 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1369 &mvm->status),
1370 HZ))
1371 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1372}
1373
cf2c92d8
EP		 1374static void
1375iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1376 enum ieee80211_reconfig_type reconfig_type)
1377{
1378 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1379
1380 switch (reconfig_type) {
1381 case IEEE80211_RECONFIG_TYPE_RESTART:
1382 iwl_mvm_restart_complete(mvm);
1383 break;
1384 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1385 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1386 break;
1387 }
1388}
1389
a0a09243 1390void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1391{
a0a09243 1392 lockdep_assert_held(&mvm->mutex);
7498cf4c 1393
91a8bcde
JB		 1394 /* firmware counters are obviously reset now, but we shouldn't
1395 * partially track so also clear the fw_reset_accu counters.
1396 */
1397 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1398
0a79a0c0
EP		 1399 /*
1400 * Disallow low power states when the FW is down by taking
1401 * the UCODE_DOWN ref. in case of ongoing hw restart the
1402 * ref is already taken, so don't take it again.
1403 */
1404 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1405 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1406
8ca151b5
JB		 1407 /* async_handlers_wk is now blocked */
1408
1409 /*
1410 * The work item could be running or queued if the
1411 * ROC time event stops just as we get here.
1412 */
c779273b 1413 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1414
1415 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1416
1417 iwl_mvm_async_handlers_purge(mvm);
1418 /* async_handlers_list is empty and will stay empty: HW is stopped */
1419
1420 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1421 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1422
0a79a0c0
EP		 1423 /*
1424 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1425 * won't be called in this case).
1426 */
1427 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1428
963221be
AB		 1429 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1430 * make sure there's nothing left there and warn if any is found.
1431 */
1432 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
1433 int i;
1434
507e4cda 1435 for (i = 0; i < mvm->max_scans; i++) {
963221be
AB		 1436 if (WARN_ONCE(mvm->scan_uid[i],
1437 "UMAC scan UID %d was not cleaned\n",
1438 mvm->scan_uid[i]))
1439 mvm->scan_uid[i] = 0;
1440 }
1441 }
1442
bc44886d 1443 mvm->ucode_loaded = false;
a0a09243 1444}
bc44886d 1445
a0a09243
LC		 1446static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1447{
1448 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1449
1450 flush_work(&mvm->d0i3_exit_work);
1451 flush_work(&mvm->async_handlers_wk);
d2709ad7 1452 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1453 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1454
1455 mutex_lock(&mvm->mutex);
1456 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1457 mutex_unlock(&mvm->mutex);
1458
1459 /*
1460 * The worker might have been waiting for the mutex, let it run and
1461 * discover that its list is now empty.
1462 */
1463 cancel_work_sync(&mvm->async_handlers_wk);
1464}
1465
fe0f2de3
IP		 1466static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1467{
1468 u16 i;
1469
1470 lockdep_assert_held(&mvm->mutex);
1471
1472 for (i = 0; i < NUM_PHY_CTX; i++)
1473 if (!mvm->phy_ctxts[i].ref)
1474 return &mvm->phy_ctxts[i];
1475
1476 IWL_ERR(mvm, "No available PHY context\n");
1477 return NULL;
1478}
1479
d44c3fe6
AA		 1480static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1481 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1482{
1483 /* FW is in charge of regulatory enforcement */
1484 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1485 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1486 .pwr_restriction = cpu_to_le16(tx_power),
1487 };
1488
a1022927 1489 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1490 sizeof(reduce_txpwr_cmd),
1491 &reduce_txpwr_cmd);
1492}
1493
d44c3fe6
AA		 1494static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1495 s16 tx_power)
1496{
1497 struct iwl_dev_tx_power_cmd cmd = {
1498 .set_mode = 0,
1499 .mac_context_id =
1500 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1501 .pwr_restriction = cpu_to_le16(8 * tx_power),
1502 };
1503
1504 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV))
1505 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1506
1507 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1508 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1509
1510 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1511 sizeof(cmd), &cmd);
1512}
1513
8ca151b5
JB		 1514static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1515 struct ieee80211_vif *vif)
1516{
1517 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1518 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1519 int ret;
1520
aa5e1832
EG		 1521 mvmvif->mvm = mvm;
1522
d40fc489
GG		 1523 /*
1524 * make sure D0i3 exit is completed, otherwise a target access
1525 * during tx queue configuration could be done when still in
1526 * D0i3 state.
1527 */
1528 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1529 if (ret)
1530 return ret;
1531
8ca151b5
JB		 1532 /*
1533 * Not much to do here. The stack will not allow interface
1534 * types or combinations that we didn't advertise, so we
1535 * don't really have to check the types.
1536 */
1537
1538 mutex_lock(&mvm->mutex);
1539
33cef925
JB		 1540 /* make sure that beacon statistics don't go backwards with FW reset */
1541 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1542 mvmvif->beacon_stats.accu_num_beacons +=
1543 mvmvif->beacon_stats.num_beacons;
1544
e89044d7 1545 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1546 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1547 if (ret)
1548 goto out_unlock;
1549
1c2abf72 1550 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1551 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1552 mvm->vif_count++;
ea183d02 1553
8ca151b5
JB		 1554 /*
1555 * The AP binding flow can be done only after the beacon
1556 * template is configured (which happens only in the mac80211
1557 * start_ap() flow), and adding the broadcast station can happen
1558 * only after the binding.
1559 * In addition, since modifying the MAC before adding a bcast
1560 * station is not allowed by the FW, delay the adding of MAC context to
1561 * the point where we can also add the bcast station.
1562 * In short: there's not much we can do at this point, other than
1563 * allocating resources :)
1564 */
5023d966
JB		 1565 if (vif->type == NL80211_IFTYPE_AP ||
1566 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1567 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1568 if (ret) {
1569 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1570 goto out_release;
1571 }
1572
77740cb4 1573 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1574 goto out_unlock;
1575 }
1576
8ca151b5
JB		 1577 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1578 if (ret)
1579 goto out_release;
1580
999609f1 1581 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1582 if (ret)
fd66fc1c 1583 goto out_remove_mac;
8ca151b5 1584
7df15b1e 1585 /* beacon filtering */
a1022927 1586 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1587 if (ret)
1588 goto out_remove_mac;
1589
7df15b1e 1590 if (!mvm->bf_allowed_vif &&
73e5f2c5 1591 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1592 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1593 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1594 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1595 }
1596
8ca151b5
JB		 1597 /*
1598 * P2P_DEVICE interface does not have a channel context assigned to it,
1599 * so a dedicated PHY context is allocated to it and the corresponding
1600 * MAC context is bound to it at this stage.
1601 */
1602 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1603
fe0f2de3
IP		 1604 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1605 if (!mvmvif->phy_ctxt) {
1606 ret = -ENOSPC;
bd3351ba 1607 goto out_free_bf;
fe0f2de3 1608 }
8ca151b5 1609
53a9d61e 1610 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1611 ret = iwl_mvm_binding_add_vif(mvm, vif);
1612 if (ret)
53a9d61e 1613 goto out_unref_phy;
8ca151b5 1614
013290aa 1615 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1616 if (ret)
1617 goto out_unbind;
1618
1619 /* Save a pointer to p2p device vif, so it can later be used to
1620 * update the p2p device MAC when a GO is started/stopped */
1621 mvm->p2p_device_vif = vif;
1622 }
1623
63494374 1624 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1625 goto out_unlock;
1626
1627 out_unbind:
1628 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1629 out_unref_phy:
fe0f2de3 1630 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1631 out_free_bf:
1632 if (mvm->bf_allowed_vif == mvmvif) {
1633 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1634 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1635 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1636 }
8ca151b5
JB		 1637 out_remove_mac:
1638 mvmvif->phy_ctxt = NULL;
1639 iwl_mvm_mac_ctxt_remove(mvm, vif);
1640 out_release:
5ee2b215
AB		 1641 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1642 mvm->vif_count--;
1c2abf72 1643
8ca151b5
JB		 1644 iwl_mvm_mac_ctxt_release(mvm, vif);
1645 out_unlock:
1646 mutex_unlock(&mvm->mutex);
1647
d40fc489
GG		 1648 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1649
8ca151b5
JB		 1650 return ret;
1651}
1652
38a12b5b
JB		 1653static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1654 struct ieee80211_vif *vif)
8ca151b5 1655{
d92b732e 1656 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1657
1658 if (tfd_msk) {
fe92e32a
EG		 1659 /*
1660 * mac80211 first removes all the stations of the vif and
1661 * then removes the vif. When it removes a station it also
1662 * flushes the AMPDU session. So by now, all the AMPDU sessions
1663 * of all the stations of this vif are closed, and the queues
1664 * of these AMPDU sessions are properly closed.
1665 * We still need to take care of the shared queues of the vif.
1666 * Flush them here.
1667 */
8ca151b5
JB		 1668 mutex_lock(&mvm->mutex);
1669 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1670 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1671
1672 /*
1673 * There are transports that buffer a few frames in the host.
1674 * For these, the flush above isn't enough since while we were
1675 * flushing, the transport might have sent more frames to the
1676 * device. To solve this, wait here until the transport is
1677 * empty. Technically, this could have replaced the flush
1678 * above, but flush is much faster than draining. So flush
1679 * first, and drain to make sure we have no frames in the
1680 * transport anymore.
1681 * If a station still had frames on the shared queues, it is
1682 * already marked as draining, so to complete the draining, we
1683 * just need to wait until the transport is empty.
1684 */
1685 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1686 }
1687
1688 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1689 /*
1690 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1691 * We assume here that all the packets sent to the OFFCHANNEL
1692 * queue are sent in ROC session.
1693 */
1694 flush_work(&mvm->roc_done_wk);
1695 } else {
1696 /*
1697 * By now, all the AC queues are empty. The AGG queues are
1698 * empty too. We already got all the Tx responses for all the
1699 * packets in the queues. The drain work can have been
0742a75a 1700 * triggered. Flush it.
8ca151b5
JB		 1701 */
1702 flush_work(&mvm->sta_drained_wk);
1703 }
38a12b5b
JB		 1704}
1705
1706static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1707 struct ieee80211_vif *vif)
1708{
1709 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1710 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1711
1712 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1713
1714 mutex_lock(&mvm->mutex);
1715
7df15b1e
HG		 1716 if (mvm->bf_allowed_vif == mvmvif) {
1717 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1718 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1719 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1720 }
1721
63494374
JB		 1722 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1723
8ca151b5
JB		 1724 /*
1725 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1726 * interface is be handled as part of the stop_ap flow.
8ca151b5 1727 */
5023d966
JB		 1728 if (vif->type == NL80211_IFTYPE_AP ||
1729 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1730#ifdef CONFIG_NL80211_TESTMODE
1731 if (vif == mvm->noa_vif) {
1732 mvm->noa_vif = NULL;
1733 mvm->noa_duration = 0;
1734 }
1735#endif
013290aa 1736 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1737 goto out_release;
1738 }
1739
1740 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1741 mvm->p2p_device_vif = NULL;
013290aa 1742 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1743 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1744 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1745 mvmvif->phy_ctxt = NULL;
1746 }
1747
5ee2b215 1748 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1749 mvm->vif_count--;
1c2abf72 1750
999609f1 1751 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1752 iwl_mvm_mac_ctxt_remove(mvm, vif);
1753
1754out_release:
1755 iwl_mvm_mac_ctxt_release(mvm, vif);
1756 mutex_unlock(&mvm->mutex);
1757}
1758
1759static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1760{
8ca151b5
JB		 1761 return 0;
1762}
1763
e59647ea
EP		 1764struct iwl_mvm_mc_iter_data {
1765 struct iwl_mvm *mvm;
1766 int port_id;
1767};
1768
1769static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1770 struct ieee80211_vif *vif)
1771{
1772 struct iwl_mvm_mc_iter_data *data = _data;
1773 struct iwl_mvm *mvm = data->mvm;
1774 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1775 int ret, len;
1776
1777 /* if we don't have free ports, mcast frames will be dropped */
1778 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1779 return;
1780
1781 if (vif->type != NL80211_IFTYPE_STATION ||
1782 !vif->bss_conf.assoc)
1783 return;
1784
1785 cmd->port_id = data->port_id++;
1786 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1787 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1788
1c4abec0 1789 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1790 if (ret)
1791 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1792}
1793
1794static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1795{
1796 struct iwl_mvm_mc_iter_data iter_data = {
1797 .mvm = mvm,
88f2fd73
MG		 1798 };
1799
e59647ea
EP		 1800 lockdep_assert_held(&mvm->mutex);
1801
1802 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1803 return;
1804
1c4abec0 1805 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1806 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1807 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1808}
1809
e59647ea
EP		 1810static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1811 struct netdev_hw_addr_list *mc_list)
8ca151b5 1812{
e59647ea
EP		 1813 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1814 struct iwl_mcast_filter_cmd *cmd;
1815 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1816 int addr_count;
1817 bool pass_all;
e59647ea
EP		 1818 int len;
1819
f3bd58f4
MS		 1820 addr_count = netdev_hw_addr_list_count(mc_list);
1821 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1822 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1823 if (pass_all)
e59647ea 1824 addr_count = 0;
e59647ea
EP		 1825
1826 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1827 cmd = kzalloc(len, GFP_ATOMIC);
1828 if (!cmd)
1829 return 0;
1830
1831 if (pass_all) {
1832 cmd->pass_all = 1;
1833 return (u64)(unsigned long)cmd;
1834 }
1835
1836 netdev_hw_addr_list_for_each(addr, mc_list) {
1837 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1838 cmd->count, addr->addr);
1839 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1840 addr->addr, ETH_ALEN);
1841 cmd->count++;
1842 }
1843
1844 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1845}
1846
1847static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1848 unsigned int changed_flags,
1849 unsigned int *total_flags,
1850 u64 multicast)
1851{
e59647ea
EP		 1852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1853 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1854
e59647ea 1855 mutex_lock(&mvm->mutex);
51b6b9e0 1856
e59647ea
EP		 1857 /* replace previous configuration */
1858 kfree(mvm->mcast_filter_cmd);
1859 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1860
e59647ea
EP		 1861 if (!cmd)
1862 goto out;
51b6b9e0 1863
e59647ea
EP		 1864 iwl_mvm_recalc_multicast(mvm);
1865out:
1866 mutex_unlock(&mvm->mutex);
1867 *total_flags = 0;
51b6b9e0
EG		 1868}
1869
c87163b9
EP		 1870#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1871struct iwl_bcast_iter_data {
1872 struct iwl_mvm *mvm;
1873 struct iwl_bcast_filter_cmd *cmd;
1874 u8 current_filter;
1875};
1876
1877static void
1878iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1879 const struct iwl_fw_bcast_filter *in_filter,
1880 struct iwl_fw_bcast_filter *out_filter)
1881{
1882 struct iwl_fw_bcast_filter_attr *attr;
1883 int i;
1884
1885 memcpy(out_filter, in_filter, sizeof(*out_filter));
1886
1887 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1888 attr = &out_filter->attrs[i];
1889
1890 if (!attr->mask)
1891 break;
1892
2ee8f021
EP		 1893 switch (attr->reserved1) {
1894 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1895 if (vif->bss_conf.arp_addr_cnt != 1) {
1896 attr->mask = 0;
1897 continue;
1898 }
1899
1900 attr->val = vif->bss_conf.arp_addr_list[0];
1901 break;
1902 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1903 attr->val = *(__be32 *)&vif->addr[2];
1904 break;
1905 default:
1906 break;
1907 }
1908 attr->reserved1 = 0;
c87163b9
EP		 1909 out_filter->num_attrs++;
1910 }
1911}
1912
1913static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1914 struct ieee80211_vif *vif)
1915{
1916 struct iwl_bcast_iter_data *data = _data;
1917 struct iwl_mvm *mvm = data->mvm;
1918 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1919 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1920 struct iwl_fw_bcast_mac *bcast_mac;
1921 int i;
1922
1923 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1924 return;
1925
1926 bcast_mac = &cmd->macs[mvmvif->id];
1927
e48393e8
IP		 1928 /*
1929 * enable filtering only for associated stations, but not for P2P
1930 * Clients
1931 */
1932 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1933 !vif->bss_conf.assoc)
c87163b9
EP		 1934 return;
1935
1936 bcast_mac->default_discard = 1;
1937
1938 /* copy all configured filters */
1939 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1940 /*
1941 * Make sure we don't exceed our filters limit.
1942 * if there is still a valid filter to be configured,
1943 * be on the safe side and just allow bcast for this mac.
1944 */
1945 if (WARN_ON_ONCE(data->current_filter >=
1946 ARRAY_SIZE(cmd->filters))) {
1947 bcast_mac->default_discard = 0;
1948 bcast_mac->attached_filters = 0;
1949 break;
1950 }
1951
1952 iwl_mvm_set_bcast_filter(vif,
1953 &mvm->bcast_filters[i],
1954 &cmd->filters[data->current_filter]);
1955
1956 /* skip current filter if it contains no attributes */
1957 if (!cmd->filters[data->current_filter].num_attrs)
1958 continue;
1959
1960 /* attach the filter to current mac */
1961 bcast_mac->attached_filters |=
1962 cpu_to_le16(BIT(data->current_filter));
1963
1964 data->current_filter++;
1965 }
1966}
1967
de06a59e
EP		 1968bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1969 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1970{
c87163b9
EP		 1971 struct iwl_bcast_iter_data iter_data = {
1972 .mvm = mvm,
de06a59e 1973 .cmd = cmd,
c87163b9
EP		 1974 };
1975
3b8983b1
MS		 1976 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1977 return false;
1978
de06a59e
EP		 1979 memset(cmd, 0, sizeof(*cmd));
1980 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1981 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1982
1983#ifdef CONFIG_IWLWIFI_DEBUGFS
1984 /* use debugfs filters/macs if override is configured */
1985 if (mvm->dbgfs_bcast_filtering.override) {
1986 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1987 sizeof(cmd->filters));
1988 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1989 sizeof(cmd->macs));
1990 return true;
1991 }
1992#endif
c87163b9
EP		 1993
1994 /* if no filters are configured, do nothing */
1995 if (!mvm->bcast_filters)
de06a59e 1996 return false;
c87163b9
EP		 1997
1998 /* configure and attach these filters for each associated sta vif */
1999 ieee80211_iterate_active_interfaces(
2000 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2001 iwl_mvm_bcast_filter_iterator, &iter_data);
2002
de06a59e
EP		 2003 return true;
2004}
2005static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2006 struct ieee80211_vif *vif)
2007{
2008 struct iwl_bcast_filter_cmd cmd;
2009
2010 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2011 return 0;
2012
2013 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2014 return 0;
2015
a1022927 2016 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2017 sizeof(cmd), &cmd);
2018}
2019#else
2020static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2021 struct ieee80211_vif *vif)
2022{
2023 return 0;
2024}
2025#endif
2026
8ca151b5
JB		 2027static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2028 struct ieee80211_vif *vif,
2029 struct ieee80211_bss_conf *bss_conf,
2030 u32 changes)
2031{
2032 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2033 int ret;
2034
6e97b0d2
IP		 2035 /*
2036 * Re-calculate the tsf id, as the master-slave relations depend on the
2037 * beacon interval, which was not known when the station interface was
2038 * added.
2039 */
2040 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2041 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2042
3dfd3a97
JB		 2043 /*
2044 * If we're not associated yet, take the (new) BSSID before associating
2045 * so the firmware knows. If we're already associated, then use the old
2046 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2047 * branch for disassociation below.
2048 */
2049 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2050 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2051
2052 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2053 if (ret)
2054 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2055
3dfd3a97
JB		 2056 /* after sending it once, adopt mac80211 data */
2057 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2058 mvmvif->associated = bss_conf->assoc;
2059
8ca151b5
JB		 2060 if (changes & BSS_CHANGED_ASSOC) {
2061 if (bss_conf->assoc) {
33cef925
JB		 2062 /* clear statistics to get clean beacon counter */
2063 iwl_mvm_request_statistics(mvm, true);
2064 memset(&mvmvif->beacon_stats, 0,
2065 sizeof(mvmvif->beacon_stats));
2066
8ca151b5 2067 /* add quota for this interface */
7754ae79 2068 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2069 if (ret) {
2070 IWL_ERR(mvm, "failed to update quotas\n");
2071 return;
2072 }
016d27e1
JB		 2073
2074 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2075 &mvm->status)) {
2076 /*
2077 * If we're restarting then the firmware will
2078 * obviously have lost synchronisation with
2079 * the AP. It will attempt to synchronise by
2080 * itself, but we can make it more reliable by
2081 * scheduling a session protection time event.
2082 *
2083 * The firmware needs to receive a beacon to
2084 * catch up with synchronisation, use 110% of
2085 * the beacon interval.
2086 *
2087 * Set a large maximum delay to allow for more
2088 * than a single interface.
2089 */
2090 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2091 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2092 5 * dur, false);
016d27e1 2093 }
1f3b0ff8
LE		 2094
2095 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2096 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2097 if (vif->p2p) {
29a90a49 2098 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2099 iwl_mvm_update_smps(mvm, vif,
2100 IWL_MVM_SMPS_REQ_PROT,
2101 IEEE80211_SMPS_DYNAMIC);
2102 }
8ca151b5 2103 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2104 /*
2105 * If update fails - SF might be running in associated
2106 * mode while disassociated - which is forbidden.
2107 */
2108 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2109 "Failed to update SF upon disassociation\n");
2110
8ca151b5
JB		 2111 /* remove AP station now that the MAC is unassoc */
2112 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2113 if (ret)
2114 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2115
2116 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2117 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2118 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2119 /* remove quota for this interface */
7754ae79 2120 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2121 if (ret)
2122 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2123
2124 if (vif->p2p)
2125 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2126
2127 /* this will take the cleared BSSID from bss_conf */
2128 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2129 if (ret)
2130 IWL_ERR(mvm,
2131 "failed to update MAC %pM (clear after unassoc)\n",
2132 vif->addr);
8ca151b5 2133 }
a20fd398 2134
e59647ea 2135 iwl_mvm_recalc_multicast(mvm);
c87163b9 2136 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2137
a20fd398
AO		 2138 /* reset rssi values */
2139 mvmvif->bf_data.ave_beacon_signal = 0;
2140
8e484f0b 2141 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2142 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2143 IEEE80211_SMPS_AUTOMATIC);
989c6505 2144 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2145 /*
2146 * We received a beacon _after_ association so
2147 * remove the session protection.
2148 */
2149 iwl_mvm_remove_time_event(mvm, mvmvif,
2150 &mvmvif->time_event_data);
8ca151b5 2151 }
cc87d322
EH		 2152
2153 if (changes & BSS_CHANGED_BEACON_INFO) {
2154 iwl_mvm_sf_update(mvm, vif, false);
2155 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2156 }
2157
1bc10d3b
JB		 2158 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2159 ret = iwl_mvm_power_update_mac(mvm);
2160 if (ret)
2161 IWL_ERR(mvm, "failed to update power mode\n");
2162 }
2163
88f2fd73
MG		 2164 if (changes & BSS_CHANGED_TXPOWER) {
2165 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2166 bss_conf->txpower);
2167 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2168 }
a20fd398
AO		 2169
2170 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2171 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2172 /* reset cqm events tracking */
2173 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2174 if (mvmvif->bf_data.bf_enabled) {
2175 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2176 if (ret)
2177 IWL_ERR(mvm,
2178 "failed to update CQM thresholds\n");
2179 }
a20fd398 2180 }
2ee8f021
EP		 2181
2182 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2183 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2184 iwl_mvm_configure_bcast_filter(mvm, vif);
2185 }
8ca151b5
JB		 2186}
2187
5023d966
JB		 2188static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2189 struct ieee80211_vif *vif)
8ca151b5
JB		 2190{
2191 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2192 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2193 int ret;
2194
576eeee9
EP		 2195 /*
2196 * iwl_mvm_mac_ctxt_add() might read directly from the device
2197 * (the system time), so make sure it is available.
2198 */
2199 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2200 if (ret)
2201 return ret;
2202
8ca151b5
JB		 2203 mutex_lock(&mvm->mutex);
2204
2205 /* Send the beacon template */
2206 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2207 if (ret)
2208 goto out_unlock;
2209
6e97b0d2
IP		 2210 /*
2211 * Re-calculate the tsf id, as the master-slave relations depend on the
2212 * beacon interval, which was not known when the AP interface was added.
2213 */
2214 if (vif->type == NL80211_IFTYPE_AP)
2215 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2216
8ca151b5
JB		 2217 /* Add the mac context */
2218 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2219 if (ret)
2220 goto out_unlock;
2221
2222 /* Perform the binding */
2223 ret = iwl_mvm_binding_add_vif(mvm, vif);
2224 if (ret)
2225 goto out_remove;
2226
8ca151b5
JB		 2227 /* Send the bcast station. At this stage the TBTT and DTIM time events
2228 * are added and applied to the scheduler */
013290aa 2229 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2230 if (ret)
2231 goto out_unbind;
2232
5691e218
IP		 2233 /* must be set before quota calculations */
2234 mvmvif->ap_ibss_active = true;
2235
a11e144e 2236 /* power updated needs to be done before quotas */
999609f1 2237 iwl_mvm_power_update_mac(mvm);
a11e144e 2238
7754ae79 2239 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2240 if (ret)
a11e144e 2241 goto out_quota_failed;
8ca151b5 2242
5023d966 2243 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2244 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2245 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2246
29a90a49
EP		 2247 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2248
8e484f0b 2249 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2250
f697267f
AN		 2251 /* we don't support TDLS during DCM */
2252 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2253 iwl_mvm_teardown_tdls_peers(mvm);
2254
939e4904 2255 goto out_unlock;
8ca151b5 2256
a11e144e 2257out_quota_failed:
999609f1 2258 iwl_mvm_power_update_mac(mvm);
5691e218 2259 mvmvif->ap_ibss_active = false;
013290aa 2260 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2261out_unbind:
2262 iwl_mvm_binding_remove_vif(mvm, vif);
2263out_remove:
2264 iwl_mvm_mac_ctxt_remove(mvm, vif);
2265out_unlock:
2266 mutex_unlock(&mvm->mutex);
576eeee9 2267 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2268 return ret;
2269}
2270
5023d966
JB		 2271static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif)
8ca151b5
JB		 2273{
2274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2275 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2276
38a12b5b
JB		 2277 iwl_mvm_prepare_mac_removal(mvm, vif);
2278
8ca151b5
JB		 2279 mutex_lock(&mvm->mutex);
2280
664322fa 2281 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2282 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2283 iwl_mvm_remove_time_event(mvm, mvmvif,
2284 &mvmvif->time_event_data);
664322fa 2285 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2286 }
664322fa 2287
003e5236
AO		 2288 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2289 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2290 mvm->csa_tx_block_bcn_timeout = 0;
2291 }
2292
5023d966 2293 mvmvif->ap_ibss_active = false;
1c87bbad 2294 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2295
8e484f0b 2296 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2297
29a90a49
EP		 2298 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2299
5023d966 2300 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2301 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2302 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2303
7754ae79 2304 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2305 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2306 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2307
999609f1 2308 iwl_mvm_power_update_mac(mvm);
a11e144e 2309
8ca151b5
JB		 2310 iwl_mvm_mac_ctxt_remove(mvm, vif);
2311
2312 mutex_unlock(&mvm->mutex);
2313}
2314
5023d966
JB		 2315static void
2316iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2317 struct ieee80211_vif *vif,
2318 struct ieee80211_bss_conf *bss_conf,
2319 u32 changes)
8ca151b5 2320{
be2056fc 2321 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2322
be2056fc
IP		 2323 /* Changes will be applied when the AP/IBSS is started */
2324 if (!mvmvif->ap_ibss_active)
2325 return;
2326
863230da 2327 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2328 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2329 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2330 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2331
8ca151b5 2332 /* Need to send a new beacon template to the FW */
863230da
JB		 2333 if (changes & BSS_CHANGED_BEACON &&
2334 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2335 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2336
2337 if (changes & BSS_CHANGED_TXPOWER) {
2338 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2339 bss_conf->txpower);
2340 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2341 }
2342
8ca151b5
JB		 2343}
2344
2345static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2346 struct ieee80211_vif *vif,
2347 struct ieee80211_bss_conf *bss_conf,
2348 u32 changes)
2349{
2350 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2351
576eeee9
EP		 2352 /*
2353 * iwl_mvm_bss_info_changed_station() might call
2354 * iwl_mvm_protect_session(), which reads directly from
2355 * the device (the system time), so make sure it is available.
2356 */
2357 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2358 return;
2359
8ca151b5
JB		 2360 mutex_lock(&mvm->mutex);
2361
723f02ed 2362 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2363 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2364
8ca151b5
JB		 2365 switch (vif->type) {
2366 case NL80211_IFTYPE_STATION:
2367 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2368 break;
2369 case NL80211_IFTYPE_AP:
5023d966
JB		 2370 case NL80211_IFTYPE_ADHOC:
2371 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2372 break;
2373 default:
2374 /* shouldn't happen */
2375 WARN_ON_ONCE(1);
2376 }
2377
2378 mutex_unlock(&mvm->mutex);
576eeee9 2379 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2380}
2381
2382static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2383 struct ieee80211_vif *vif,
c56ef672 2384 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2385{
2386 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2387 int ret;
2388
6749dd80
LC		 2389 if (hw_req->req.n_channels == 0 ||
2390 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2391 return -EINVAL;
2392
bd9564da 2393 mutex_lock(&mvm->mutex);
6749dd80 2394 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2395 mutex_unlock(&mvm->mutex);
6749dd80 2396
8ca151b5
JB		 2397 return ret;
2398}
2399
2400static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2401 struct ieee80211_vif *vif)
2402{
2403 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2404
2405 mutex_lock(&mvm->mutex);
2406
e7d3abab
LC		 2407 /* Due to a race condition, it's possible that mac80211 asks
2408 * us to stop a hw_scan when it's already stopped. This can
2409 * happen, for instance, if we stopped the scan ourselves,
2410 * called ieee80211_scan_completed() and the userspace called
2411 * cancel scan scan before ieee80211_scan_work() could run.
2412 * To handle that, simply return if the scan is not running.
2413 */
2414 /* FIXME: for now, we ignore this race for UMAC scans, since
2415 * they don't set the scan_status.
2416 */
9af91f46 2417 if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) ||
e7d3abab
LC		 2418 (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2419 iwl_mvm_cancel_scan(mvm);
8ca151b5
JB		 2420
2421 mutex_unlock(&mvm->mutex);
2422}
2423
2424static void
2425iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2426 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2427 int num_frames,
2428 enum ieee80211_frame_release_type reason,
2429 bool more_data)
2430{
2431 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2432
3e56eadf 2433 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2434
3e56eadf
JB		 2435 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2436 tids, more_data, false);
2437}
2438
2439static void
2440iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2441 struct ieee80211_sta *sta, u16 tids,
2442 int num_frames,
2443 enum ieee80211_frame_release_type reason,
2444 bool more_data)
2445{
2446 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2447
2448 /* Called when we need to transmit (a) frame(s) from agg queue */
2449
2450 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2451 tids, more_data, true);
8ca151b5
JB		 2452}
2453
2454static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2455 struct ieee80211_vif *vif,
2456 enum sta_notify_cmd cmd,
2457 struct ieee80211_sta *sta)
2458{
2459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2460 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2461 unsigned long txqs = 0, tids = 0;
3e56eadf 2462 int tid;
8ca151b5 2463
c22b0ff5
EG		 2464 spin_lock_bh(&mvmsta->lock);
2465 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2466 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2467
2468 if (tid_data->state != IWL_AGG_ON &&
2469 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2470 continue;
2471
2472 __set_bit(tid_data->txq_id, &txqs);
2473
2474 if (iwl_mvm_tid_queued(tid_data) == 0)
2475 continue;
2476
2477 __set_bit(tid, &tids);
2478 }
2479
8ca151b5
JB		 2480 switch (cmd) {
2481 case STA_NOTIFY_SLEEP:
e3d4bc8c 2482 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2483 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2484
c22b0ff5 2485 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2486 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2487
2488 if (txqs)
2489 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2490 /*
2491 * The fw updates the STA to be asleep. Tx packets on the Tx
2492 * queues to this station will not be transmitted. The fw will
2493 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2494 */
2495 break;
2496 case STA_NOTIFY_AWAKE:
881acd89 2497 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2498 break;
c22b0ff5
EG		 2499
2500 if (txqs)
2501 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2502 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2503 break;
2504 default:
2505 break;
2506 }
c22b0ff5 2507 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2508}
2509
1ddbbb0c
JB		 2510static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2511 struct ieee80211_vif *vif,
2512 struct ieee80211_sta *sta)
2513{
2514 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2515 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2516
2517 /*
2518 * This is called before mac80211 does RCU synchronisation,
2519 * so here we already invalidate our internal RCU-protected
2520 * station pointer. The rest of the code will thus no longer
2521 * be able to find the station this way, and we don't rely
2522 * on further RCU synchronisation after the sta_state()
2523 * callback deleted the station.
2524 */
2525 mutex_lock(&mvm->mutex);
2526 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2527 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2528 ERR_PTR(-ENOENT));
2529 mutex_unlock(&mvm->mutex);
2530}
2531
bd1ba664
JB		 2532static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2533 const u8 *bssid)
2534{
2535 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2536 return;
2537
2538 if (iwlwifi_mod_params.uapsd_disable) {
2539 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2540 return;
2541 }
2542
2543 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2544}
2545
8ca151b5
JB		 2546static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2547 struct ieee80211_vif *vif,
2548 struct ieee80211_sta *sta,
2549 enum ieee80211_sta_state old_state,
2550 enum ieee80211_sta_state new_state)
2551{
2552 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2553 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2554 int ret;
2555
2556 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2557 sta->addr, old_state, new_state);
2558
2559 /* this would be a mac80211 bug ... but don't crash */
2560 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2561 return -EINVAL;
2562
2563 /* if a STA is being removed, reuse its ID */
2564 flush_work(&mvm->sta_drained_wk);
2565
2566 mutex_lock(&mvm->mutex);
2567 if (old_state == IEEE80211_STA_NOTEXIST &&
2568 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2569 /*
2570 * Firmware bug - it'll crash if the beacon interval is less
2571 * than 16. We can't avoid connecting at all, so refuse the
2572 * station state change, this will cause mac80211 to abandon
2573 * attempts to connect to this AP, and eventually wpa_s will
2574 * blacklist the AP...
2575 */
2576 if (vif->type == NL80211_IFTYPE_STATION &&
2577 vif->bss_conf.beacon_int < 16) {
2578 IWL_ERR(mvm,
2579 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2580 sta->addr, vif->bss_conf.beacon_int);
2581 ret = -EINVAL;
2582 goto out_unlock;
2583 }
cf7b491d
AN		 2584
2585 if (sta->tdls &&
2586 (vif->p2p ||
fa3d07e4
AN		 2587 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2588 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2589 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2590 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2591 ret = -EBUSY;
2592 goto out_unlock;
2593 }
2594
8ca151b5 2595 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2596 if (sta->tdls && ret == 0)
2597 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2598 } else if (old_state == IEEE80211_STA_NONE &&
2599 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2600 /*
2601 * EBS may be disabled due to previous failures reported by FW.
2602 * Reset EBS status here assuming environment has been changed.
2603 */
2604 mvm->last_ebs_successful = true;
bd1ba664 2605 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2606 ret = 0;
2607 } else if (old_state == IEEE80211_STA_AUTH &&
2608 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2609 ret = iwl_mvm_update_sta(mvm, vif, sta);
2610 if (ret == 0)
2611 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2612 mvmvif->phy_ctxt->channel->band,
2613 true);
8ca151b5
JB		 2614 } else if (old_state == IEEE80211_STA_ASSOC &&
2615 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2616
2617 /* we don't support TDLS during DCM */
2618 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2619 iwl_mvm_teardown_tdls_peers(mvm);
2620
7df15b1e 2621 /* enable beacon filtering */
fa7b2e7f 2622 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2623 ret = 0;
2624 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2625 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2626 /* disable beacon filtering */
a1022927 2627 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2628 ret = 0;
2629 } else if (old_state == IEEE80211_STA_ASSOC &&
2630 new_state == IEEE80211_STA_AUTH) {
2631 ret = 0;
2632 } else if (old_state == IEEE80211_STA_AUTH &&
2633 new_state == IEEE80211_STA_NONE) {
2634 ret = 0;
2635 } else if (old_state == IEEE80211_STA_NONE &&
2636 new_state == IEEE80211_STA_NOTEXIST) {
2637 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2638 if (sta->tdls)
2639 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2640 } else {
2641 ret = -EIO;
2642 }
48bc1307 2643 out_unlock:
8ca151b5
JB		 2644 mutex_unlock(&mvm->mutex);
2645
9c126cd6
LK		 2646 if (sta->tdls && ret == 0) {
2647 if (old_state == IEEE80211_STA_NOTEXIST &&
2648 new_state == IEEE80211_STA_NONE)
2649 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2650 else if (old_state == IEEE80211_STA_NONE &&
2651 new_state == IEEE80211_STA_NOTEXIST)
2652 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2653 }
2654
8ca151b5
JB		 2655 return ret;
2656}
2657
2658static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2659{
2660 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2661
2662 mvm->rts_threshold = value;
2663
2664 return 0;
2665}
2666
1f3b0ff8
LE		 2667static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2668 struct ieee80211_vif *vif,
2669 struct ieee80211_sta *sta, u32 changed)
2670{
2671 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2672
2673 if (vif->type == NL80211_IFTYPE_STATION &&
2674 changed & IEEE80211_RC_NSS_CHANGED)
2675 iwl_mvm_sf_update(mvm, vif, false);
2676}
2677
8ca151b5
JB		 2678static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2679 struct ieee80211_vif *vif, u16 ac,
2680 const struct ieee80211_tx_queue_params *params)
2681{
2682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2683 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2684
2685 mvmvif->queue_params[ac] = *params;
2686
2687 /*
2688 * No need to update right away, we'll get BSS_CHANGED_QOS
2689 * The exception is P2P_DEVICE interface which needs immediate update.
2690 */
2691 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2692 int ret;
2693
2694 mutex_lock(&mvm->mutex);
3dfd3a97 2695 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2696 mutex_unlock(&mvm->mutex);
2697 return ret;
2698 }
2699 return 0;
2700}
2701
2702static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2703 struct ieee80211_vif *vif)
2704{
2705 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2706 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2707 200 + vif->bss_conf.beacon_int);
2708 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2709 100 + vif->bss_conf.beacon_int);
2710
2711 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2712 return;
2713
576eeee9
EP		 2714 /*
2715 * iwl_mvm_protect_session() reads directly from the device
2716 * (the system time), so make sure it is available.
2717 */
2718 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2719 return;
2720
8ca151b5
JB		 2721 mutex_lock(&mvm->mutex);
2722 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2723 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2724 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2725
2726 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2727}
2728
35a000b7
DS		 2729static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2730 struct ieee80211_vif *vif,
2731 struct cfg80211_sched_scan_request *req,
633e2713 2732 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2733{
2734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6749dd80 2735
35a000b7
DS		 2736 int ret;
2737
bd9564da
LC		 2738 mutex_lock(&mvm->mutex);
2739
1f940386 2740 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2741 ret = -EBUSY;
2742 goto out;
2743 }
2744
19945dfb 2745 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2746
35a000b7
DS		 2747out:
2748 mutex_unlock(&mvm->mutex);
2749 return ret;
2750}
2751
37e3308c
JB		 2752static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2753 struct ieee80211_vif *vif)
35a000b7
DS		 2754{
2755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2756 int ret;
35a000b7
DS		 2757
2758 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2759
2760 /* Due to a race condition, it's possible that mac80211 asks
2761 * us to stop a sched_scan when it's already stopped. This
2762 * can happen, for instance, if we stopped the scan ourselves,
2763 * called ieee80211_sched_scan_stopped() and the userspace called
2764 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2765 * could run. To handle this, simply return if the scan is
2766 * not running.
2767 */
2768 /* FIXME: for now, we ignore this race for UMAC scans, since
2769 * they don't set the scan_status.
2770 */
9af91f46 2771 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
e7d3abab
LC		 2772 !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2773 mutex_unlock(&mvm->mutex);
2774 return 0;
2775 }
2776
fb98be5e 2777 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2778 mutex_unlock(&mvm->mutex);
33ea27f6 2779 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2780
33ea27f6 2781 return ret;
35a000b7
DS		 2782}
2783
8ca151b5
JB		 2784static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2785 enum set_key_cmd cmd,
2786 struct ieee80211_vif *vif,
2787 struct ieee80211_sta *sta,
2788 struct ieee80211_key_conf *key)
2789{
2790 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2791 int ret;
2792
2793 if (iwlwifi_mod_params.sw_crypto) {
2794 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2795 return -EOPNOTSUPP;
2796 }
2797
2798 switch (key->cipher) {
2799 case WLAN_CIPHER_SUITE_TKIP:
2800 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2801 /* fall-through */
2802 case WLAN_CIPHER_SUITE_CCMP:
2803 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2804 break;
2805 case WLAN_CIPHER_SUITE_AES_CMAC:
2806 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2807 break;
2808 case WLAN_CIPHER_SUITE_WEP40:
2809 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2810 /* For non-client mode, only use WEP keys for TX as we probably
2811 * don't have a station yet anyway and would then have to keep
2812 * track of the keys, linking them to each of the clients/peers
2813 * as they appear. For now, don't do that, for performance WEP
2814 * offload doesn't really matter much, but we need it for some
2815 * other offload features in client mode.
8ca151b5 2816 */
ba3943b0
JB		 2817 if (vif->type != NL80211_IFTYPE_STATION)
2818 return 0;
2819 break;
8ca151b5 2820 default:
e36e5433
MS		 2821 /* currently FW supports only one optional cipher scheme */
2822 if (hw->n_cipher_schemes &&
2823 hw->cipher_schemes->cipher == key->cipher)
2824 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2825 else
2826 return -EOPNOTSUPP;
8ca151b5
JB		 2827 }
2828
2829 mutex_lock(&mvm->mutex);
2830
2831 switch (cmd) {
2832 case SET_KEY:
5023d966
JB		 2833 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2834 vif->type == NL80211_IFTYPE_AP) && !sta) {
2835 /*
2836 * GTK on AP interface is a TX-only key, return 0;
2837 * on IBSS they're per-station and because we're lazy
2838 * we don't support them for RX, so do the same.
2839 */
6caffd4f
JB		 2840 ret = 0;
2841 key->hw_key_idx = STA_KEY_IDX_INVALID;
2842 break;
2843 }
2844
b546dcd6
JB		 2845 /* During FW restart, in order to restore the state as it was,
2846 * don't try to reprogram keys we previously failed for.
2847 */
2848 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2849 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2850 IWL_DEBUG_MAC80211(mvm,
2851 "skip invalid idx key programming during restart\n");
2852 ret = 0;
2853 break;
2854 }
2855
8ca151b5 2856 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2857 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2858 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2859 &mvm->status));
8ca151b5
JB		 2860 if (ret) {
2861 IWL_WARN(mvm, "set key failed\n");
2862 /*
2863 * can't add key for RX, but we don't need it
2864 * in the device for TX so still return 0
2865 */
6caffd4f 2866 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2867 ret = 0;
2868 }
2869
2870 break;
2871 case DISABLE_KEY:
6caffd4f
JB		 2872 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2873 ret = 0;
2874 break;
2875 }
2876
8ca151b5
JB		 2877 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2878 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2879 break;
2880 default:
2881 ret = -EINVAL;
2882 }
2883
2884 mutex_unlock(&mvm->mutex);
2885 return ret;
2886}
2887
2888static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2889 struct ieee80211_vif *vif,
2890 struct ieee80211_key_conf *keyconf,
2891 struct ieee80211_sta *sta,
2892 u32 iv32, u16 *phase1key)
2893{
2894 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2895
5023d966
JB		 2896 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2897 return;
2898
8ca151b5
JB		 2899 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2900}
2901
2902
b112889c
AM		 2903static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2904 struct iwl_rx_packet *pkt, void *data)
2905{
2906 struct iwl_mvm *mvm =
2907 container_of(notif_wait, struct iwl_mvm, notif_wait);
2908 struct iwl_hs20_roc_res *resp;
2909 int resp_len = iwl_rx_packet_payload_len(pkt);
2910 struct iwl_mvm_time_event_data *te_data = data;
2911
2912 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2913 return true;
2914
2915 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2916 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2917 return true;
2918 }
2919
2920 resp = (void *)pkt->data;
2921
2922 IWL_DEBUG_TE(mvm,
2923 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2924 resp->status, resp->event_unique_id);
2925
2926 te_data->uid = le32_to_cpu(resp->event_unique_id);
2927 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2928 te_data->uid);
2929
2930 spin_lock_bh(&mvm->time_event_lock);
2931 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2932 spin_unlock_bh(&mvm->time_event_lock);
2933
2934 return true;
2935}
2936
35d3dab5 2937#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 2938static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2939 struct ieee80211_channel *channel,
2940 struct ieee80211_vif *vif,
2941 int duration)
2942{
2943 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2944 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2945 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2946 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2947 struct iwl_notification_wait wait_time_event;
2948 struct iwl_hs20_roc_req aux_roc_req = {
2949 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2950 .id_and_color =
2951 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2952 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2953 /* Set the channel info data */
2954 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2955 PHY_BAND_24 : PHY_BAND_5,
2956 .channel_info.channel = channel->hw_value,
2957 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2958 /* Set the time and duration */
2959 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2960 .apply_time_max_delay =
2961 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2962 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2963 };
2964
2965 /* Set the node address */
2966 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2967
a6cc5163
MG		 2968 lockdep_assert_held(&mvm->mutex);
2969
2970 spin_lock_bh(&mvm->time_event_lock);
2971
2972 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2973 spin_unlock_bh(&mvm->time_event_lock);
2974 return -EIO;
2975 }
2976
b112889c
AM		 2977 te_data->vif = vif;
2978 te_data->duration = duration;
2979 te_data->id = HOT_SPOT_CMD;
2980
b112889c
AM		 2981 spin_unlock_bh(&mvm->time_event_lock);
2982
2983 /*
2984 * Use a notification wait, which really just processes the
2985 * command response and doesn't wait for anything, in order
2986 * to be able to process the response and get the UID inside
2987 * the RX path. Using CMD_WANT_SKB doesn't work because it
2988 * stores the buffer and then wakes up this thread, by which
2989 * time another notification (that the time event started)
2990 * might already be processed unsuccessfully.
2991 */
2992 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2993 time_event_response,
2994 ARRAY_SIZE(time_event_response),
2995 iwl_mvm_rx_aux_roc, te_data);
2996
2997 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2998 &aux_roc_req);
2999
3000 if (res) {
3001 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3002 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3003 goto out_clear_te;
3004 }
3005
3006 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3007 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3008 /* should never fail */
3009 WARN_ON_ONCE(res);
3010
3011 if (res) {
3012 out_clear_te:
3013 spin_lock_bh(&mvm->time_event_lock);
3014 iwl_mvm_te_clear_data(mvm, te_data);
3015 spin_unlock_bh(&mvm->time_event_lock);
3016 }
3017
3018 return res;
3019}
3020
8ca151b5
JB		 3021static int iwl_mvm_roc(struct ieee80211_hw *hw,
3022 struct ieee80211_vif *vif,
3023 struct ieee80211_channel *channel,
d339d5ca
IP		 3024 int duration,
3025 enum ieee80211_roc_type type)
8ca151b5
JB		 3026{
3027 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3028 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3029 struct cfg80211_chan_def chandef;
31d385ae
IP		 3030 struct iwl_mvm_phy_ctxt *phy_ctxt;
3031 int ret, i;
3032
3033 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3034 duration, type);
8ca151b5 3035
6ed13164
MG		 3036 flush_work(&mvm->roc_done_wk);
3037
a6cc5163
MG		 3038 mutex_lock(&mvm->mutex);
3039
b112889c
AM		 3040 switch (vif->type) {
3041 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 3042 if (mvm->fw->ucode_capa.capa[0] &
3043 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
3044 /* Use aux roc framework (HS20) */
3045 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3046 vif, duration);
3047 goto out_unlock;
3048 }
3049 IWL_ERR(mvm, "hotspot not supported\n");
3050 ret = -EINVAL;
a6cc5163 3051 goto out_unlock;
b112889c
AM		 3052 case NL80211_IFTYPE_P2P_DEVICE:
3053 /* handle below */
3054 break;
3055 default:
3056 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3057 ret = -EINVAL;
3058 goto out_unlock;
8ca151b5
JB		 3059 }
3060
31d385ae
IP		 3061 for (i = 0; i < NUM_PHY_CTX; i++) {
3062 phy_ctxt = &mvm->phy_ctxts[i];
3063 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3064 continue;
3065
3066 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3067 /*
3068 * Unbind the P2P_DEVICE from the current PHY context,
3069 * and if the PHY context is not used remove it.
3070 */
3071 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3072 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3073 goto out_unlock;
3074
3075 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3076
3077 /* Bind the P2P_DEVICE to the current PHY Context */
3078 mvmvif->phy_ctxt = phy_ctxt;
3079
3080 ret = iwl_mvm_binding_add_vif(mvm, vif);
3081 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3082 goto out_unlock;
3083
3084 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3085 goto schedule_time_event;
3086 }
3087 }
3088
3089 /* Need to update the PHY context only if the ROC channel changed */
3090 if (channel == mvmvif->phy_ctxt->channel)
3091 goto schedule_time_event;
3092
8ca151b5 3093 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3094
31d385ae
IP		 3095 /*
3096 * Change the PHY context configuration as it is currently referenced
3097 * only by the P2P Device MAC
3098 */
3099 if (mvmvif->phy_ctxt->ref == 1) {
3100 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3101 &chandef, 1, 1);
3102 if (ret)
3103 goto out_unlock;
3104 } else {
3105 /*
3106 * The PHY context is shared with other MACs. Need to remove the
3107 * P2P Device from the binding, allocate an new PHY context and
3108 * create a new binding
3109 */
3110 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3111 if (!phy_ctxt) {
3112 ret = -ENOSPC;
3113 goto out_unlock;
3114 }
3115
3116 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3117 1, 1);
3118 if (ret) {
3119 IWL_ERR(mvm, "Failed to change PHY context\n");
3120 goto out_unlock;
3121 }
3122
3123 /* Unbind the P2P_DEVICE from the current PHY context */
3124 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3125 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3126 goto out_unlock;
3127
3128 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3129
3130 /* Bind the P2P_DEVICE to the new allocated PHY context */
3131 mvmvif->phy_ctxt = phy_ctxt;
3132
3133 ret = iwl_mvm_binding_add_vif(mvm, vif);
3134 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3135 goto out_unlock;
3136
3137 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3138 }
3139
3140schedule_time_event:
8ca151b5 3141 /* Schedule the time events */
e635c797 3142 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3143
31d385ae 3144out_unlock:
8ca151b5
JB		 3145 mutex_unlock(&mvm->mutex);
3146 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3147 return ret;
3148}
3149
3150static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3151{
3152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3153
3154 IWL_DEBUG_MAC80211(mvm, "enter\n");
3155
3156 mutex_lock(&mvm->mutex);
bf5da87f 3157 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3158 mutex_unlock(&mvm->mutex);
3159
3160 IWL_DEBUG_MAC80211(mvm, "leave\n");
3161 return 0;
3162}
3163
b08c1d97
LC		 3164static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3165 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3166{
fe0f2de3
IP		 3167 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3168 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3169 int ret;
3170
b08c1d97
LC		 3171 lockdep_assert_held(&mvm->mutex);
3172
53a9d61e 3173 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3174
fe0f2de3
IP		 3175 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3176 if (!phy_ctxt) {
3177 ret = -ENOSPC;
3178 goto out;
3179 }
8ca151b5 3180
dcbc3e1a 3181 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3182 ctx->rx_chains_static,
3183 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3184 if (ret) {
3185 IWL_ERR(mvm, "Failed to add PHY context\n");
3186 goto out;
3187 }
3188
53a9d61e 3189 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3190 *phy_ctxt_id = phy_ctxt->id;
3191out:
b08c1d97
LC		 3192 return ret;
3193}
3194
3195static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3196 struct ieee80211_chanctx_conf *ctx)
3197{
3198 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3199 int ret;
3200
3201 mutex_lock(&mvm->mutex);
3202 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3203 mutex_unlock(&mvm->mutex);
b08c1d97 3204
8ca151b5
JB		 3205 return ret;
3206}
3207
b08c1d97
LC		 3208static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3209 struct ieee80211_chanctx_conf *ctx)
3210{
3211 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3212 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3213
3214 lockdep_assert_held(&mvm->mutex);
3215
3216 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3217}
3218
8ca151b5
JB		 3219static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3220 struct ieee80211_chanctx_conf *ctx)
3221{
3222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3223
3224 mutex_lock(&mvm->mutex);
b08c1d97 3225 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3226 mutex_unlock(&mvm->mutex);
3227}
3228
3229static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3230 struct ieee80211_chanctx_conf *ctx,
3231 u32 changed)
3232{
3233 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3234 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3235 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3236
31d385ae
IP		 3237 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3238 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3239 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3240 IEEE80211_CHANCTX_CHANGE_RADAR |
3241 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3242 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3243 phy_ctxt->ref, changed))
3244 return;
3245
8ca151b5 3246 mutex_lock(&mvm->mutex);
4d66449a 3247 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3248 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3249 ctx->rx_chains_static,
3250 ctx->rx_chains_dynamic);
3251 mutex_unlock(&mvm->mutex);
3252}
3253
b08c1d97
LC		 3254static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3255 struct ieee80211_vif *vif,
f0c97783
LC		 3256 struct ieee80211_chanctx_conf *ctx,
3257 bool switching_chanctx)
8ca151b5 3258{
fe0f2de3
IP		 3259 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3260 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3261 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3262 int ret;
3263
b08c1d97 3264 lockdep_assert_held(&mvm->mutex);
8ca151b5 3265
fe0f2de3 3266 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3267
3268 switch (vif->type) {
3269 case NL80211_IFTYPE_AP:
4741dd04
LC		 3270 /* only needed if we're switching chanctx (i.e. during CSA) */
3271 if (switching_chanctx) {
bd3398e2
AO		 3272 mvmvif->ap_ibss_active = true;
3273 break;
3274 }
5023d966 3275 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3276 /*
3277 * The AP binding flow is handled as part of the start_ap flow
5023d966 3278 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3279 */
3280 ret = 0;
b08c1d97 3281 goto out;
8ca151b5 3282 case NL80211_IFTYPE_STATION:
2533edce 3283 break;
8ca151b5 3284 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3285 /* always disable PS when a monitor interface is active */
3286 mvmvif->ps_disabled = true;
8ca151b5
JB		 3287 break;
3288 default:
3289 ret = -EINVAL;
b08c1d97 3290 goto out;
8ca151b5
JB		 3291 }
3292
3293 ret = iwl_mvm_binding_add_vif(mvm, vif);
3294 if (ret)
b08c1d97 3295 goto out;
8ca151b5
JB		 3296
3297 /*
92d85562
AB		 3298 * Power state must be updated before quotas,
3299 * otherwise fw will complain.
3300 */
999609f1 3301 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3302
3303 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3304 * interfaces. For the other types, the bss_info changed flow
3305 * will handle quota settings.
3306 */
3307 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3308 mvmvif->monitor_active = true;
7754ae79 3309 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3310 if (ret)
3311 goto out_remove_binding;
3312 }
3313
bd3398e2 3314 /* Handle binding during CSA */
a57c688d 3315 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3316 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3317 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3318 }
3319
4741dd04 3320 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3321 u32 duration = 2 * vif->bss_conf.beacon_int;
3322
3323 /* iwl_mvm_protect_session() reads directly from the
3324 * device (the system time), so make sure it is
3325 * available.
3326 */
3327 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3328 if (ret)
3329 goto out_remove_binding;
3330
3331 /* Protect the session to make sure we hear the first
3332 * beacon on the new channel.
3333 */
3334 iwl_mvm_protect_session(mvm, vif, duration, duration,
3335 vif->bss_conf.beacon_int / 2,
3336 true);
3337
3338 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3339
7754ae79 3340 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3341 }
3342
b08c1d97 3343 goto out;
8ca151b5 3344
b08c1d97 3345out_remove_binding:
8ca151b5 3346 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3347 iwl_mvm_power_update_mac(mvm);
b08c1d97 3348out:
8ca151b5
JB		 3349 if (ret)
3350 mvmvif->phy_ctxt = NULL;
3351 return ret;
3352}
b08c1d97
LC		 3353static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3354 struct ieee80211_vif *vif,
3355 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3356{
3357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3358 int ret;
8ca151b5
JB		 3359
3360 mutex_lock(&mvm->mutex);
f0c97783 3361 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3362 mutex_unlock(&mvm->mutex);
3363
3364 return ret;
3365}
3366
3367static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3368 struct ieee80211_vif *vif,
f0c97783
LC		 3369 struct ieee80211_chanctx_conf *ctx,
3370 bool switching_chanctx)
b08c1d97
LC		 3371{
3372 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3373 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3374
3375 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3376
3377 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3378
8ca151b5 3379 switch (vif->type) {
5023d966 3380 case NL80211_IFTYPE_ADHOC:
b08c1d97 3381 goto out;
8ca151b5 3382 case NL80211_IFTYPE_MONITOR:
1e1391ca 3383 mvmvif->monitor_active = false;
2533edce 3384 mvmvif->ps_disabled = false;
8ca151b5 3385 break;
bd3398e2
AO		 3386 case NL80211_IFTYPE_AP:
3387 /* This part is triggered only during CSA */
4741dd04 3388 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3389 goto out;
bd3398e2 3390
7ef0aab6
AO		 3391 mvmvif->csa_countdown = false;
3392
003e5236
AO		 3393 /* Set CS bit on all the stations */
3394 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3395
3396 /* Save blocked iface, the timeout is set on the next beacon */
3397 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3398
bd3398e2 3399 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3400 break;
3401 case NL80211_IFTYPE_STATION:
3402 if (!switching_chanctx)
3403 break;
3404
3405 disabled_vif = vif;
3406
3dfd3a97 3407 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3408 break;
8ca151b5
JB		 3409 default:
3410 break;
3411 }
3412
7754ae79 3413 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3414 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3415
b08c1d97 3416out:
a11e144e 3417 mvmvif->phy_ctxt = NULL;
999609f1 3418 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3419}
3420
3421static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3422 struct ieee80211_vif *vif,
3423 struct ieee80211_chanctx_conf *ctx)
3424{
3425 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3426
3427 mutex_lock(&mvm->mutex);
f0c97783 3428 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3429 mutex_unlock(&mvm->mutex);
3430}
3431
50cc9574
LC		 3432static int
3433iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3434 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3435{
b08c1d97
LC		 3436 int ret;
3437
b08c1d97 3438 mutex_lock(&mvm->mutex);
f0c97783 3439 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3440 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3441
3442 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3443 if (ret) {
3444 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3445 goto out_reassign;
3446 }
3447
f0c97783
LC		 3448 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3449 true);
b08c1d97
LC		 3450 if (ret) {
3451 IWL_ERR(mvm,
3452 "failed to assign new_ctx during channel switch\n");
3453 goto out_remove;
3454 }
3455
f697267f
AN		 3456 /* we don't support TDLS during DCM - can be caused by channel switch */
3457 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3458 iwl_mvm_teardown_tdls_peers(mvm);
3459
b08c1d97
LC		 3460 goto out;
3461
3462out_remove:
3463 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3464
3465out_reassign:
6fd1fb63 3466 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3467 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3468 goto out_restart;
3469 }
3470
6fd1fb63
LC		 3471 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3472 true)) {
b08c1d97
LC		 3473 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3474 goto out_restart;
3475 }
3476
3477 goto out;
3478
3479out_restart:
3480 /* things keep failing, better restart the hw */
3481 iwl_mvm_nic_restart(mvm, false);
3482
3483out:
3484 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3485
3486 return ret;
3487}
3488
48a256e8
LC		 3489static int
3490iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3491 struct ieee80211_vif_chanctx_switch *vifs)
3492{
3493 int ret;
3494
3495 mutex_lock(&mvm->mutex);
3496 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3497
3498 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3499 true);
3500 if (ret) {
3501 IWL_ERR(mvm,
3502 "failed to assign new_ctx during channel switch\n");
3503 goto out_reassign;
3504 }
3505
3506 goto out;
3507
3508out_reassign:
3509 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3510 true)) {
3511 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3512 goto out_restart;
3513 }
3514
3515 goto out;
3516
3517out_restart:
3518 /* things keep failing, better restart the hw */
3519 iwl_mvm_nic_restart(mvm, false);
3520
3521out:
3522 mutex_unlock(&mvm->mutex);
3523
3524 return ret;
3525}
3526
50cc9574
LC		 3527static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3528 struct ieee80211_vif_chanctx_switch *vifs,
3529 int n_vifs,
3530 enum ieee80211_chanctx_switch_mode mode)
3531{
3532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3533 int ret;
3534
3535 /* we only support a single-vif right now */
3536 if (n_vifs > 1)
3537 return -EOPNOTSUPP;
3538
3539 switch (mode) {
3540 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3541 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3542 break;
3543 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3544 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3545 break;
3546 default:
3547 ret = -EOPNOTSUPP;
3548 break;
3549 }
3550
b08c1d97
LC		 3551 return ret;
3552}
3553
8ca151b5
JB		 3554static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3555 struct ieee80211_sta *sta,
3556 bool set)
3557{
3558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3559 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3560
3561 if (!mvm_sta || !mvm_sta->vif) {
3562 IWL_ERR(mvm, "Station is not associated to a vif\n");
3563 return -EINVAL;
3564 }
3565
3566 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3567}
3568
507cadf2
DS		 3569#ifdef CONFIG_NL80211_TESTMODE
3570static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3571 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3572 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3573 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3574};
3575
3576static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3577 struct ieee80211_vif *vif,
3578 void *data, int len)
3579{
3580 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3581 int err;
3582 u32 noa_duration;
3583
3584 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3585 if (err)
3586 return err;
3587
3588 if (!tb[IWL_MVM_TM_ATTR_CMD])
3589 return -EINVAL;
3590
3591 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3592 case IWL_MVM_TM_CMD_SET_NOA:
3593 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3594 !vif->bss_conf.enable_beacon ||
3595 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3596 return -EINVAL;
3597
3598 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3599 if (noa_duration >= vif->bss_conf.beacon_int)
3600 return -EINVAL;
3601
3602 mvm->noa_duration = noa_duration;
3603 mvm->noa_vif = vif;
3604
7754ae79 3605 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3606 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3607 /* must be associated client vif - ignore authorized */
3608 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3609 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3610 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3611 return -EINVAL;
3612
3613 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3614 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3615 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3616 }
3617
3618 return -EOPNOTSUPP;
3619}
3620
3621static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3622 struct ieee80211_vif *vif,
3623 void *data, int len)
3624{
3625 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3626 int err;
3627
3628 mutex_lock(&mvm->mutex);
3629 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3630 mutex_unlock(&mvm->mutex);
3631
3632 return err;
3633}
3634#endif
3635
622e3f9b
LC		 3636static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3637 struct ieee80211_vif *vif,
3638 struct ieee80211_channel_switch *chsw)
3639{
3640 /* By implementing this operation, we prevent mac80211 from
3641 * starting its own channel switch timer, so that we can call
3642 * ieee80211_chswitch_done() ourselves at the right time
3643 * (which is when the absence time event starts).
3644 */
3645
3646 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3647 "dummy channel switch op\n");
3648}
3649
f028905c
LC		 3650static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3651 struct ieee80211_vif *vif,
3652 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3653{
3654 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3655 struct ieee80211_vif *csa_vif;
f6c34820 3656 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3657 u32 apply_time;
f028905c 3658 int ret;
bd3398e2
AO		 3659
3660 mutex_lock(&mvm->mutex);
664322fa 3661
81d62d5a
JB		 3662 mvmvif->csa_failed = false;
3663
6b20d774 3664 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3665 chsw->chandef.center_freq1);
6b20d774 3666
21023b1e 3667 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3668
6b20d774
LC		 3669 switch (vif->type) {
3670 case NL80211_IFTYPE_AP:
3671 csa_vif =
3672 rcu_dereference_protected(mvm->csa_vif,
3673 lockdep_is_held(&mvm->mutex));
3674 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3675 "Another CSA is already in progress")) {
3676 ret = -EBUSY;
3677 goto out_unlock;
3678 }
3679
3680 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3681
7ef0aab6
AO		 3682 if (WARN_ONCE(mvmvif->csa_countdown,
3683 "Previous CSA countdown didn't complete")) {
3684 ret = -EBUSY;
3685 goto out_unlock;
3686 }
3687
6b20d774 3688 break;
dc88b4ba 3689 case NL80211_IFTYPE_STATION:
4500e133
LC		 3690 /* Schedule the time event to a bit before beacon 1,
3691 * to make sure we're in the new channel when the
3692 * GO/AP arrives.
3693 */
3694 apply_time = chsw->device_timestamp +
3695 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3696 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3697
3698 if (chsw->block_tx)
3699 iwl_mvm_csa_client_absent(mvm, vif);
3700
4500e133 3701 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3702 apply_time);
c6e0a3e0
LC		 3703 if (mvmvif->bf_data.bf_enabled) {
3704 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3705 if (ret)
3706 goto out_unlock;
3707 }
3708
dc88b4ba 3709 break;
6b20d774
LC		 3710 default:
3711 break;
3712 }
bd3398e2 3713
f6c34820
LC		 3714 mvmvif->ps_disabled = true;
3715
3716 ret = iwl_mvm_power_update_ps(mvm);
3717 if (ret)
3718 goto out_unlock;
f028905c 3719
e198f5e7
AN		 3720 /* we won't be on this channel any longer */
3721 iwl_mvm_teardown_tdls_peers(mvm);
3722
bd3398e2
AO		 3723out_unlock:
3724 mutex_unlock(&mvm->mutex);
f028905c
LC		 3725
3726 return ret;
bd3398e2
AO		 3727}
3728
f6c34820
LC		 3729static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3730 struct ieee80211_vif *vif)
3731{
3732 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3734 int ret;
3735
3736 mutex_lock(&mvm->mutex);
3737
81d62d5a
JB		 3738 if (mvmvif->csa_failed) {
3739 mvmvif->csa_failed = false;
3740 ret = -EIO;
3741 goto out_unlock;
3742 }
3743
a57c688d
LC		 3744 if (vif->type == NL80211_IFTYPE_STATION) {
3745 struct iwl_mvm_sta *mvmsta;
3746
3747 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3748 mvmvif->ap_sta_id);
3749
3750 if (WARN_ON(!mvmsta)) {
3751 ret = -EIO;
3752 goto out_unlock;
3753 }
3754
3755 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3756
3757 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3758
3759 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3760 if (ret)
3761 goto out_unlock;
686e7fe1
LC		 3762
3763 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3764 }
3765
f6c34820
LC		 3766 mvmvif->ps_disabled = false;
3767
3768 ret = iwl_mvm_power_update_ps(mvm);
3769
a57c688d 3770out_unlock:
f6c34820
LC		 3771 mutex_unlock(&mvm->mutex);
3772
3773 return ret;
3774}
3775
c5b0e7c0
EG		 3776static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3777 struct ieee80211_vif *vif, u32 queues, bool drop)
3778{
3779 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3780 struct iwl_mvm_vif *mvmvif;
3781 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3782 struct ieee80211_sta *sta;
3783 int i;
3784 u32 msk = 0;
c5b0e7c0
EG		 3785
3786 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3787 return;
3788
3789 mutex_lock(&mvm->mutex);
3790 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3791
a0f6bf2a
AN		 3792 /* flush the AP-station and all TDLS peers */
3793 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3794 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3795 lockdep_is_held(&mvm->mutex));
3796 if (IS_ERR_OR_NULL(sta))
3797 continue;
3798
3799 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3800 if (mvmsta->vif != vif)
3801 continue;
3802
3803 /* make sure only TDLS peers or the AP are flushed */
3804 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3805
3806 msk |= mvmsta->tfd_queue_msk;
480acbce 3807 }
c5b0e7c0 3808
6d440b25
EG		 3809 if (drop) {
3810 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3811 IWL_ERR(mvm, "flush request fail\n");
3812 mutex_unlock(&mvm->mutex);
3813 } else {
3814 mutex_unlock(&mvm->mutex);
4e6c48e0 3815
6d440b25
EG		 3816 /* this can take a while, and we may need/want other operations
3817 * to succeed while doing this, so do it without the mutex held
3818 */
3819 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3820 }
c5b0e7c0
EG		 3821}
3822
91a8bcde
JB		 3823static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3824 struct survey_info *survey)
3825{
3826 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3827 int ret;
3828
3829 memset(survey, 0, sizeof(*survey));
3830
3831 /* only support global statistics right now */
3832 if (idx != 0)
3833 return -ENOENT;
3834
3835 if (!(mvm->fw->ucode_capa.capa[0] &
3836 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3837 return -ENOENT;
3838
3839 mutex_lock(&mvm->mutex);
3840
3841 if (mvm->ucode_loaded) {
33cef925 3842 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3843 if (ret)
3844 goto out;
3845 }
3846
3847 survey->filled = SURVEY_INFO_TIME |
3848 SURVEY_INFO_TIME_RX |
3849 SURVEY_INFO_TIME_TX |
3850 SURVEY_INFO_TIME_SCAN;
3851 survey->time = mvm->accu_radio_stats.on_time_rf +
3852 mvm->radio_stats.on_time_rf;
3853 do_div(survey->time, USEC_PER_MSEC);
3854
3855 survey->time_rx = mvm->accu_radio_stats.rx_time +
3856 mvm->radio_stats.rx_time;
3857 do_div(survey->time_rx, USEC_PER_MSEC);
3858
3859 survey->time_tx = mvm->accu_radio_stats.tx_time +
3860 mvm->radio_stats.tx_time;
3861 do_div(survey->time_tx, USEC_PER_MSEC);
3862
3863 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3864 mvm->radio_stats.on_time_scan;
3865 do_div(survey->time_scan, USEC_PER_MSEC);
3866
10a7c028 3867 ret = 0;
91a8bcde
JB		 3868 out:
3869 mutex_unlock(&mvm->mutex);
3870 return ret;
3871}
3872
33cef925
JB		 3873static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3874 struct ieee80211_vif *vif,
3875 struct ieee80211_sta *sta,
3876 struct station_info *sinfo)
3877{
3878 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3879 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3880 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3881
3882 if (!(mvm->fw->ucode_capa.capa[0] &
3883 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3884 return;
3885
3886 /* if beacon filtering isn't on mac80211 does it anyway */
3887 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3888 return;
3889
3890 if (!vif->bss_conf.assoc)
3891 return;
3892
3893 mutex_lock(&mvm->mutex);
3894
3895 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3896 goto unlock;
3897
3898 if (iwl_mvm_request_statistics(mvm, false))
3899 goto unlock;
3900
3901 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3902 mvmvif->beacon_stats.accu_num_beacons;
3903 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3904 if (mvmvif->beacon_stats.avg_signal) {
3905 /* firmware only reports a value after RXing a few beacons */
3906 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3907 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3908 }
3909 unlock:
3910 mutex_unlock(&mvm->mutex);
3911}
3912
d42f5350
EG		 3913static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3914 struct ieee80211_vif *vif,
3915 const struct ieee80211_event *event)
3916{
5d4f929e 3917#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3918 do { \
3919 if ((_cnt) && --(_cnt)) \
3920 break; \
5d4f929e 3921 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3922 } while (0)
3923
3924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3925 struct iwl_fw_dbg_trigger_tlv *trig;
3926 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3927
3928 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3929 return;
3930
d42f5350
EG		 3931 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3932 trig_mlme = (void *)trig->data;
3933 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3934 return;
3935
d42f5350
EG		 3936 if (event->u.mlme.data == ASSOC_EVENT) {
3937 if (event->u.mlme.status == MLME_DENIED)
3938 CHECK_MLME_TRIGGER(mvm, trig, buf,
3939 trig_mlme->stop_assoc_denied,
3940 "DENIED ASSOC: reason %d",
3941 event->u.mlme.reason);
3942 else if (event->u.mlme.status == MLME_TIMEOUT)
3943 CHECK_MLME_TRIGGER(mvm, trig, buf,
3944 trig_mlme->stop_assoc_timeout,
3945 "ASSOC TIMEOUT");
3946 } else if (event->u.mlme.data == AUTH_EVENT) {
3947 if (event->u.mlme.status == MLME_DENIED)
3948 CHECK_MLME_TRIGGER(mvm, trig, buf,
3949 trig_mlme->stop_auth_denied,
3950 "DENIED AUTH: reason %d",
3951 event->u.mlme.reason);
3952 else if (event->u.mlme.status == MLME_TIMEOUT)
3953 CHECK_MLME_TRIGGER(mvm, trig, buf,
3954 trig_mlme->stop_auth_timeout,
3955 "AUTH TIMEOUT");
3956 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3957 CHECK_MLME_TRIGGER(mvm, trig, buf,
3958 trig_mlme->stop_rx_deauth,
3959 "DEAUTH RX %d", event->u.mlme.reason);
3960 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3961 CHECK_MLME_TRIGGER(mvm, trig, buf,
3962 trig_mlme->stop_tx_deauth,
3963 "DEAUTH TX %d", event->u.mlme.reason);
3964 }
3965#undef CHECK_MLME_TRIGGER
3966}
3967
e5209263 3968const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3969 .tx = iwl_mvm_mac_tx,
3970 .ampdu_action = iwl_mvm_mac_ampdu_action,
3971 .start = iwl_mvm_mac_start,
cf2c92d8 3972 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3973 .stop = iwl_mvm_mac_stop,
3974 .add_interface = iwl_mvm_mac_add_interface,
3975 .remove_interface = iwl_mvm_mac_remove_interface,
3976 .config = iwl_mvm_mac_config,
e59647ea 3977 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3978 .configure_filter = iwl_mvm_configure_filter,
3979 .bss_info_changed = iwl_mvm_bss_info_changed,
3980 .hw_scan = iwl_mvm_mac_hw_scan,
3981 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3982 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3983 .sta_state = iwl_mvm_mac_sta_state,
3984 .sta_notify = iwl_mvm_mac_sta_notify,
3985 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3986 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3987 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3988 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3989 .conf_tx = iwl_mvm_mac_conf_tx,
3990 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3991 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3992 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3993 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3994 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3995 .set_key = iwl_mvm_mac_set_key,
3996 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3997 .remain_on_channel = iwl_mvm_roc,
3998 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3999 .add_chanctx = iwl_mvm_add_chanctx,
4000 .remove_chanctx = iwl_mvm_remove_chanctx,
4001 .change_chanctx = iwl_mvm_change_chanctx,
4002 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4003 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4004 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4005
5023d966
JB		 4006 .start_ap = iwl_mvm_start_ap_ibss,
4007 .stop_ap = iwl_mvm_stop_ap_ibss,
4008 .join_ibss = iwl_mvm_start_ap_ibss,
4009 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4010
4011 .set_tim = iwl_mvm_set_tim,
4012
622e3f9b 4013 .channel_switch = iwl_mvm_channel_switch,
f028905c 4014 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4015 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4016
1d3c3f63
AN		 4017 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4018 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4019 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4020
d42f5350
EG		 4021 .event_callback = iwl_mvm_mac_event_callback,
4022
507cadf2
DS		 4023 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4024
8ca151b5
JB		 4025#ifdef CONFIG_PM_SLEEP
4026 /* look at d3.c */
4027 .suspend = iwl_mvm_suspend,
4028 .resume = iwl_mvm_resume,
4029 .set_wakeup = iwl_mvm_set_wakeup,
4030 .set_rekey_data = iwl_mvm_set_rekey_data,
4031#if IS_ENABLED(CONFIG_IPV6)
4032 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4033#endif
4034 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4035#endif
91a8bcde 4036 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4037 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4038};
Linux 6.x block layer and io_uring tree(s)