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iwlwifi: tracing: add rx cmd header fields
[linux-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",
b8c474d9 321 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 322 goto out;
88931cc9
AN		 323 }
324
47c8b154
JD		 325 if (changed)
326 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
327
162ee3c9 328 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 329 __le32_to_cpu(resp->n_channels),
330 resp->channels,
331 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 332 /* Store the return source id */
333 src_id = resp->source_id;
88931cc9
AN		 334 kfree(resp);
335 if (IS_ERR_OR_NULL(regd)) {
336 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 337 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 338 goto out;
88931cc9
AN		 339 }
340
8ba2d7a1
EH		 341 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 343 mvm->lar_regdom_set = true;
8ba2d7a1 344 mvm->mcc_src = src_id;
88931cc9 345
8ba2d7a1 346out:
88931cc9
AN		 347 return regd;
348}
349
47c8b154
JD		 350void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
351{
352 bool changed;
353 struct ieee80211_regdomain *regd;
354
355 if (!iwl_mvm_is_lar_supported(mvm))
356 return;
357
358 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
359 if (!IS_ERR_OR_NULL(regd)) {
360 /* only update the regulatory core if changed */
361 if (changed)
362 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
363
364 kfree(regd);
365 }
366}
367
368struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
369 bool *changed)
8ba2d7a1
EH		 370{
371 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm) ?
373 MCC_SOURCE_GET_CURRENT :
47c8b154 374 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 375}
376
377int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
378{
379 enum iwl_mcc_source used_src;
380 struct ieee80211_regdomain *regd;
b6e160ab
AN		 381 int ret;
382 bool changed;
8ba2d7a1
EH		 383 const struct ieee80211_regdomain *r =
384 rtnl_dereference(mvm->hw->wiphy->regd);
385
386 if (!r)
b6e160ab 387 return -ENOENT;
8ba2d7a1
EH		 388
389 /* save the last source in case we overwrite it below */
390 used_src = mvm->mcc_src;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
392 /* Notify the firmware we support wifi location updates */
47c8b154 393 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 394 if (!IS_ERR_OR_NULL(regd))
395 kfree(regd);
396 }
397
398 /* Now set our last stored MCC and source */
b6e160ab
AN		 399 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
400 &changed);
8ba2d7a1
EH		 401 if (IS_ERR_OR_NULL(regd))
402 return -EIO;
403
b6e160ab
AN		 404 /* update cfg80211 if the regdomain was changed */
405 if (changed)
406 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
407 else
408 ret = 0;
8ba2d7a1 409
b6e160ab
AN		 410 kfree(regd);
411 return ret;
8ba2d7a1
EH		 412}
413
8ca151b5
JB		 414int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
415{
416 struct ieee80211_hw *hw = mvm->hw;
831e85f3 417 int num_mac, ret, i;
8ca151b5
JB		 418
419 /* Tell mac80211 our characteristics */
420 hw->flags = IEEE80211_HW_SIGNAL_DBM |
421 IEEE80211_HW_SPECTRUM_MGMT |
422 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
423 IEEE80211_HW_QUEUE_CONTROL |
424 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 425 IEEE80211_HW_SUPPORTS_PS |
426 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 427 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 428 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 429 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 430 IEEE80211_HW_CHANCTX_STA_CSA |
431 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 432
19e737c9 433 hw->queues = mvm->first_agg_queue;
398e8c6c 434 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 435 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
436 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 437 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
438 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 439 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 440 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
441 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 442
443 /*
444 * Enable 11w if advertised by firmware and software crypto
445 * is not enabled (as the firmware will interpret some mgmt
446 * packets, so enabling it with software crypto isn't safe)
447 */
448 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
449 !iwlwifi_mod_params.sw_crypto)
450 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
451
1f940386
LC		 452 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
453 hw->wiphy->features |=
454 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 455 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
456 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 457
8ca151b5
JB		 458 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
459 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 460 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 461
462 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 463 BIT(NL80211_IFTYPE_P2P_CLIENT) |
464 BIT(NL80211_IFTYPE_AP) |
465 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 466 BIT(NL80211_IFTYPE_P2P_DEVICE) |
467 BIT(NL80211_IFTYPE_ADHOC);
5023d966 468
a2f73b6c 469 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 470 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
471 if (iwl_mvm_is_lar_supported(mvm))
472 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
473 else
474 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
475 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 476
3e56eadf
JB		 477 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
478 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
479
94bbed72 480 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 481
8ca151b5
JB		 482 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
483 hw->wiphy->n_iface_combinations =
484 ARRAY_SIZE(iwl_mvm_iface_combinations);
485
c451e6d4 486 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 487 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 488 /* we can compensate an offset of up to 3 channels = 15 MHz */
489 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 490
491 /* Extract MAC address */
492 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
493 hw->wiphy->addresses = mvm->addresses;
494 hw->wiphy->n_addresses = 1;
831e85f3
IP		 495
496 /* Extract additional MAC addresses if available */
497 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
498 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
499
500 for (i = 1; i < num_mac; i++) {
501 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 502 ETH_ALEN);
831e85f3 503 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 504 hw->wiphy->n_addresses++;
505 }
506
fe0f2de3
IP		 507 iwl_mvm_reset_phy_ctxts(mvm);
508
999d2568 509 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 510
8ca151b5
JB		 511 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
512
507e4cda
LC		 513 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
514 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
515
516 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
517 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
518 else
519 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
520
8ca151b5
JB		 521 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
522 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
523 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 524 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 525 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
526 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
527
c9faccc9
ES		 528 if ((mvm->fw->ucode_capa.capa[0] &
529 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
530 (mvm->fw->ucode_capa.api[0] &
531 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 532 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
533 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
534 }
535
8ca151b5
JB		 536 hw->wiphy->hw_version = mvm->trans->hw_id;
537
ade50652 538 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 539 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
540 else
541 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
542
9954b37c
EG		 543 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
544 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
545 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
546 /* we create the 802.11 header and zero length SSID IE. */
547 hw->wiphy->max_sched_scan_ie_len =
548 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 549
8ca151b5 550 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 551 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 552 NL80211_FEATURE_P2P_GO_OPPPS |
553 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 554 NL80211_FEATURE_STATIC_SMPS |
555 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 556
f1daa00e
AO		 557 if (mvm->fw->ucode_capa.capa[0] &
558 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
559 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 560 if (mvm->fw->ucode_capa.capa[0] &
561 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
562 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 563
73897bd1
AO		 564 if (mvm->fw->ucode_capa.capa[0] &
565 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
566 hw->wiphy->features |=
567 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
568
569 if (mvm->fw->ucode_capa.capa[0] &
570 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
571 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
572
8ca151b5
JB		 573 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
574
e36e5433 575 /* currently FW API supports only one optional cipher scheme */
9ddca860 576 if (mvm->fw->cs[0].cipher) {
e36e5433 577 mvm->hw->n_cipher_schemes = 1;
9ddca860 578 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 579 }
580
8ca151b5 581#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 582 if (iwl_mvm_is_d0i3_supported(mvm) &&
583 device_can_wakeup(mvm->trans->dev)) {
584 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
585 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 586 }
587
588 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 589 mvm->trans->ops->d3_suspend &&
590 mvm->trans->ops->d3_resume &&
591 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 592 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
593 WIPHY_WOWLAN_DISCONNECT |
594 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
595 WIPHY_WOWLAN_RFKILL_RELEASE |
596 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 597 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 598 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
599 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
600 WIPHY_WOWLAN_4WAY_HANDSHAKE;
601
602 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
603 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
604 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 605 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 606 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
607 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 608 }
609#endif
610
77736923
EP		 611#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
612 /* assign default bcast filtering configuration */
613 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
614#endif
615
8ca151b5
JB		 616 ret = iwl_mvm_leds_init(mvm);
617 if (ret)
618 return ret;
619
d8f1c515
AN		 620 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
621 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
622 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
623 }
624
1d3c3f63
AN		 625 if (mvm->fw->ucode_capa.capa[0] &
626 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
627 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
628 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
629 }
630
b7327d89
EG		 631 ret = ieee80211_register_hw(mvm->hw);
632 if (ret)
633 iwl_mvm_leds_exit(mvm);
634
635 return ret;
8ca151b5
JB		 636}
637
b2492501
AN		 638static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
639 struct ieee80211_sta *sta,
640 struct sk_buff *skb)
641{
642 struct iwl_mvm_sta *mvmsta;
643 bool defer = false;
644
645 /*
646 * double check the IN_D0I3 flag both before and after
647 * taking the spinlock, in order to prevent taking
648 * the spinlock when not needed.
649 */
650 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
651 return false;
652
653 spin_lock(&mvm->d0i3_tx_lock);
654 /*
655 * testing the flag again ensures the skb dequeue
656 * loop (on d0i3 exit) hasn't run yet.
657 */
658 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
659 goto out;
660
661 mvmsta = iwl_mvm_sta_from_mac80211(sta);
662 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
663 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
664 goto out;
665
666 __skb_queue_tail(&mvm->d0i3_tx, skb);
667 ieee80211_stop_queues(mvm->hw);
668
669 /* trigger wakeup */
670 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
671 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
672
673 defer = true;
674out:
675 spin_unlock(&mvm->d0i3_tx_lock);
676 return defer;
677}
678
8ca151b5
JB		 679static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
680 struct ieee80211_tx_control *control,
681 struct sk_buff *skb)
682{
683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 684 struct ieee80211_sta *sta = control->sta;
685 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
686 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 687
9ee718aa
EL		 688 if (iwl_mvm_is_radio_killed(mvm)) {
689 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 690 goto drop;
691 }
692
398e8c6c 693 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 694 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
695 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 696 goto drop;
697
3e56eadf
JB		 698 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
699 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
700 ieee80211_is_mgmt(hdr->frame_control) &&
701 !ieee80211_is_deauth(hdr->frame_control) &&
702 !ieee80211_is_disassoc(hdr->frame_control) &&
703 !ieee80211_is_action(hdr->frame_control)))
704 sta = NULL;
705
706 if (sta) {
b2492501
AN		 707 if (iwl_mvm_defer_tx(mvm, sta, skb))
708 return;
3e56eadf 709 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 710 goto drop;
711 return;
712 }
713
714 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
715 goto drop;
716 return;
717 drop:
718 ieee80211_free_txskb(hw, skb);
719}
720
205e2210
EG		 721static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
722{
723 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
724 return false;
725 return true;
726}
727
728static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
729{
730 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
731 return false;
732 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
733 return true;
734
735 /* enabled by default */
736 return true;
737}
738
8ca151b5
JB		 739static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
740 struct ieee80211_vif *vif,
741 enum ieee80211_ampdu_mlme_action action,
742 struct ieee80211_sta *sta, u16 tid,
743 u16 *ssn, u8 buf_size)
744{
745 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
746 int ret;
b2492501 747 bool tx_agg_ref = false;
8ca151b5
JB		 748
749 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
750 sta->addr, tid, action);
751
752 if (!(mvm->nvm_data->sku_cap_11n_enable))
753 return -EACCES;
754
b2492501 755 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 756 switch (action) {
757 case IEEE80211_AMPDU_TX_START:
758 case IEEE80211_AMPDU_TX_STOP_CONT:
759 case IEEE80211_AMPDU_TX_STOP_FLUSH:
760 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
761 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 762 /*
9256c205
EP		 763 * for tx start, wait synchronously until D0i3 exit to
764 * get the correct sequence number for the tid.
765 * additionally, some other ampdu actions use direct
766 * target access, which is not handled automatically
767 * by the trans layer (unlike commands), so wait for
768 * d0i3 exit in these cases as well.
b2492501 769 */
d40fc489
GG		 770 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
771 if (ret)
772 return ret;
773
774 tx_agg_ref = true;
9256c205
EP		 775 break;
776 default:
777 break;
b2492501
AN		 778 }
779
8ca151b5
JB		 780 mutex_lock(&mvm->mutex);
781
782 switch (action) {
783 case IEEE80211_AMPDU_RX_START:
205e2210 784 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 785 ret = -EINVAL;
786 break;
787 }
788 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
789 break;
790 case IEEE80211_AMPDU_RX_STOP:
791 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
792 break;
793 case IEEE80211_AMPDU_TX_START:
205e2210 794 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 795 ret = -EINVAL;
796 break;
797 }
8ca151b5
JB		 798 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
799 break;
800 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 801 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
802 break;
8ca151b5
JB		 803 case IEEE80211_AMPDU_TX_STOP_FLUSH:
804 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 805 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 806 break;
807 case IEEE80211_AMPDU_TX_OPERATIONAL:
808 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
809 break;
810 default:
811 WARN_ON_ONCE(1);
812 ret = -EINVAL;
813 break;
814 }
815 mutex_unlock(&mvm->mutex);
816
b2492501
AN		 817 /*
818 * If the tid is marked as started, we won't use it for offloaded
819 * traffic on the next D0i3 entry. It's safe to unref.
820 */
821 if (tx_agg_ref)
822 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
823
8ca151b5
JB		 824 return ret;
825}
826
827static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
828 struct ieee80211_vif *vif)
829{
830 struct iwl_mvm *mvm = data;
831 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
832
833 mvmvif->uploaded = false;
834 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
835
8ca151b5
JB		 836 spin_lock_bh(&mvm->time_event_lock);
837 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
838 spin_unlock_bh(&mvm->time_event_lock);
839
fe0f2de3 840 mvmvif->phy_ctxt = NULL;
8a275bad 841 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 842}
843
aadede6e
JB		 844static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
845 const void *data, size_t datalen)
846{
847 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
848 ssize_t bytes_read;
849 ssize_t bytes_read_trans;
850
851 if (offset < dump_ptrs->op_mode_len) {
852 bytes_read = min_t(ssize_t, count,
853 dump_ptrs->op_mode_len - offset);
854 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
855 bytes_read);
856 offset += bytes_read;
857 count -= bytes_read;
858
859 if (count == 0)
860 return bytes_read;
861 } else {
862 bytes_read = 0;
863 }
864
865 if (!dump_ptrs->trans_ptr)
866 return bytes_read;
867
868 offset -= dump_ptrs->op_mode_len;
869 bytes_read_trans = min_t(ssize_t, count,
870 dump_ptrs->trans_ptr->len - offset);
871 memcpy(buffer + bytes_read,
872 (u8 *)dump_ptrs->trans_ptr->data + offset,
873 bytes_read_trans);
874
875 return bytes_read + bytes_read_trans;
876}
877
878static void iwl_mvm_free_coredump(const void *data)
879{
880 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
881
882 vfree(fw_error_dump->op_mode_ptr);
883 vfree(fw_error_dump->trans_ptr);
884 kfree(fw_error_dump);
885}
886
04fd2c28
LK		 887static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
888 struct iwl_fw_error_dump_data **dump_data)
889{
890 struct iwl_fw_error_dump_fifo *fifo_hdr;
891 u32 *fifo_data;
892 u32 fifo_len;
893 unsigned long flags;
894 int i, j;
895
896 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
897 return;
898
899 /* Pull RXF data from all RXFs */
900 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
901 /*
902 * Keep aside the additional offset that might be needed for
903 * next RXF
904 */
905 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
906
907 fifo_hdr = (void *)(*dump_data)->data;
908 fifo_data = (void *)fifo_hdr->data;
909 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
910
911 /* No need to try to read the data if the length is 0 */
912 if (fifo_len == 0)
913 continue;
914
915 /* Add a TLV for the RXF */
916 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
917 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
918
919 fifo_hdr->fifo_num = cpu_to_le32(i);
920 fifo_hdr->available_bytes =
921 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
922 RXF_RD_D_SPACE +
923 offset_diff));
924 fifo_hdr->wr_ptr =
925 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
926 RXF_RD_WR_PTR +
927 offset_diff));
928 fifo_hdr->rd_ptr =
929 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
930 RXF_RD_RD_PTR +
931 offset_diff));
932 fifo_hdr->fence_ptr =
933 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
934 RXF_RD_FENCE_PTR +
935 offset_diff));
936 fifo_hdr->fence_mode =
937 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
938 RXF_SET_FENCE_MODE +
939 offset_diff));
940
941 /* Lock fence */
942 iwl_trans_write_prph(mvm->trans,
943 RXF_SET_FENCE_MODE + offset_diff, 0x1);
944 /* Set fence pointer to the same place like WR pointer */
945 iwl_trans_write_prph(mvm->trans,
946 RXF_LD_WR2FENCE + offset_diff, 0x1);
947 /* Set fence offset */
948 iwl_trans_write_prph(mvm->trans,
949 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
950 0x0);
951
952 /* Read FIFO */
953 fifo_len /= sizeof(u32); /* Size in DWORDS */
954 for (j = 0; j < fifo_len; j++)
955 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
956 RXF_FIFO_RD_FENCE_INC +
957 offset_diff);
958 *dump_data = iwl_fw_error_next_data(*dump_data);
959 }
960
961 /* Pull TXF data from all TXFs */
962 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
963 /* Mark the number of TXF we're pulling now */
964 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
965
966 fifo_hdr = (void *)(*dump_data)->data;
967 fifo_data = (void *)fifo_hdr->data;
968 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
969
970 /* No need to try to read the data if the length is 0 */
971 if (fifo_len == 0)
972 continue;
973
974 /* Add a TLV for the FIFO */
975 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
976 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
977
978 fifo_hdr->fifo_num = cpu_to_le32(i);
979 fifo_hdr->available_bytes =
980 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
981 TXF_FIFO_ITEM_CNT));
982 fifo_hdr->wr_ptr =
983 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
984 TXF_WR_PTR));
985 fifo_hdr->rd_ptr =
986 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
987 TXF_RD_PTR));
988 fifo_hdr->fence_ptr =
989 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
990 TXF_FENCE_PTR));
991 fifo_hdr->fence_mode =
992 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
993 TXF_LOCK_FENCE));
994
995 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
996 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
997 TXF_WR_PTR);
998
999 /* Dummy-read to advance the read pointer to the head */
1000 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1001
1002 /* Read FIFO */
1003 fifo_len /= sizeof(u32); /* Size in DWORDS */
1004 for (j = 0; j < fifo_len; j++)
1005 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1006 TXF_READ_MODIFY_DATA);
1007 *dump_data = iwl_fw_error_next_data(*dump_data);
1008 }
1009
1010 iwl_trans_release_nic_access(mvm->trans, &flags);
1011}
1012
b6eaa45a
EG		 1013void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1014{
1015 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1016 !mvm->fw_dump_desc)
1017 return;
1018
1019 kfree(mvm->fw_dump_desc);
1020 mvm->fw_dump_desc = NULL;
1021}
1022
e539761d
LK		 1023#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1024#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1025
4bfa47f3 1026void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1027{
1028 struct iwl_fw_error_dump_file *dump_file;
1029 struct iwl_fw_error_dump_data *dump_data;
1030 struct iwl_fw_error_dump_info *dump_info;
a549b296 1031 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1032 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1033 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1034 u32 sram_len, sram_ofs;
04fd2c28 1035 u32 file_len, fifo_data_len = 0;
addfaada 1036 u32 smem_len = mvm->cfg->smem_len;
86138324 1037 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1038
1039 lockdep_assert_held(&mvm->mutex);
1040
aadede6e 1041 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1042 if (!fw_error_dump)
1043 return;
1044
f53bf4c7
LK		 1045 /* SRAM - include stack CCM if driver knows the values for it */
1046 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1047 const struct fw_img *img;
1048
1049 img = &mvm->fw->img[mvm->cur_ucode];
1050 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1051 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1052 } else {
1053 sram_ofs = mvm->cfg->dccm_offset;
1054 sram_len = mvm->cfg->dccm_len;
1055 }
655e6d6d 1056
04fd2c28
LK		 1057 /* reading RXF/TXF sizes */
1058 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1059 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1060 int i;
1061
1062 fifo_data_len = 0;
1063
1064 /* Count RXF size */
1065 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1066 if (!mem_cfg->rxfifo_size[i])
1067 continue;
1068
1069 /* Add header info */
1070 fifo_data_len += mem_cfg->rxfifo_size[i] +
1071 sizeof(*dump_data) +
1072 sizeof(struct iwl_fw_error_dump_fifo);
1073 }
1074
1075 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1076 if (!mem_cfg->txfifo_size[i])
1077 continue;
655e6d6d 1078
04fd2c28
LK		 1079 /* Add header info */
1080 fifo_data_len += mem_cfg->txfifo_size[i] +
1081 sizeof(*dump_data) +
1082 sizeof(struct iwl_fw_error_dump_fifo);
1083 }
1084 }
655e6d6d
EG		 1085
1086 file_len = sizeof(*dump_file) +
04fd2c28 1087 sizeof(*dump_data) * 2 +
a549b296 1088 sram_len + sizeof(*dump_mem) +
04fd2c28 1089 fifo_data_len +
655e6d6d
EG		 1090 sizeof(*dump_info);
1091
e539761d
LK		 1092 /*
1093 * In 8000 HW family B-step include the ICCM (which resides separately)
1094 */
1095 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1096 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1097 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1098 IWL8260_ICCM_LEN;
1099
b6eaa45a
EG		 1100 if (mvm->fw_dump_desc)
1101 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1102 mvm->fw_dump_desc->len;
1103
addfaada
LK		 1104 /* Make room for the SMEM, if it exists */
1105 if (smem_len)
a549b296 1106 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1107
86138324
IY		 1108 /* Make room for the secondary SRAM, if it exists */
1109 if (sram2_len)
1110 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1111
5bfe6f53 1112 dump_file = vzalloc(file_len);
48eb7b34
EG		 1113 if (!dump_file) {
1114 kfree(fw_error_dump);
b6eaa45a 1115 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1116 return;
48eb7b34 1117 }
655e6d6d 1118
48eb7b34 1119 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1120
1121 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1122 dump_data = (void *)dump_file->data;
1123
1124 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1125 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1126 dump_info = (void *) dump_data->data;
1127 dump_info->device_family =
1128 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1129 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1130 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1131 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1132 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1133 sizeof(dump_info->fw_human_readable));
1134 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1135 sizeof(dump_info->dev_human_readable));
1136 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1137 sizeof(dump_info->bus_human_readable));
1138
1139 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1140 /* We only dump the FIFOs if the FW is in error state */
1141 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1142 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1143
b6eaa45a
EG		 1144 if (mvm->fw_dump_desc) {
1145 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1146 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1147 mvm->fw_dump_desc->len);
1148 dump_trig = (void *)dump_data->data;
1149 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1150 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1151
1152 /* now we can free this copy */
1153 iwl_mvm_free_fw_dump_desc(mvm);
1154 dump_data = iwl_fw_error_next_data(dump_data);
1155 }
1156
a549b296
EG		 1157 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1158 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1159 dump_mem = (void *)dump_data->data;
1160 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1161 dump_mem->offset = cpu_to_le32(sram_ofs);
1162 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1163 sram_len);
1164
addfaada
LK		 1165 if (smem_len) {
1166 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1167 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1168 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1169 dump_mem = (void *)dump_data->data;
1170 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1171 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1172 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1173 dump_mem->data, smem_len);
addfaada
LK		 1174 }
1175
86138324
IY		 1176 if (sram2_len) {
1177 dump_data = iwl_fw_error_next_data(dump_data);
1178 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1179 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1180 dump_mem = (void *)dump_data->data;
1181 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1182 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1183 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1184 dump_mem->data, sram2_len);
1185 }
1186
e539761d
LK		 1187 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1188 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1189 dump_data = iwl_fw_error_next_data(dump_data);
1190 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1191 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1192 sizeof(*dump_mem));
1193 dump_mem = (void *)dump_data->data;
1194 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1195 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1196 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1197 dump_mem->data, IWL8260_ICCM_LEN);
1198 }
1199
48eb7b34
EG		 1200 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1201 fw_error_dump->op_mode_len = file_len;
1202 if (fw_error_dump->trans_ptr)
1203 file_len += fw_error_dump->trans_ptr->len;
1204 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1205
aadede6e
JB		 1206 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1207 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1208
1209 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1210}
655e6d6d 1211
b6eaa45a
EG		 1212struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1213 .trig_desc = {
1214 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1215 },
1216};
1217
8ca151b5
JB		 1218static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1219{
58629d9d
JB		 1220 /* clear the D3 reconfig, we only need it to avoid dumping a
1221 * firmware coredump on reconfiguration, we shouldn't do that
1222 * on D3->D0 transition
1223 */
b6eaa45a
EG		 1224 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1225 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1226 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1227 }
1bd3cbc1 1228
744cb695
EP		 1229 /* cleanup all stale references (scan, roc), but keep the
1230 * ucode_down ref until reconfig is complete
1231 */
1232 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1233
8ca151b5 1234 iwl_trans_stop_device(mvm->trans);
8ca151b5 1235
9af91f46 1236 mvm->scan_status = 0;
b1873300 1237 mvm->ps_disabled = false;
31b8b343 1238 mvm->calibrating = false;
8ca151b5
JB		 1239
1240 /* just in case one was running */
1241 ieee80211_remain_on_channel_expired(mvm->hw);
1242
737719fe
AN		 1243 /*
1244 * cleanup all interfaces, even inactive ones, as some might have
1245 * gone down during the HW restart
1246 */
1247 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1248
fe0f2de3 1249 mvm->p2p_device_vif = NULL;
37577fe2 1250 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1251
1252 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1253 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1254 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1255 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1256 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1257 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1258 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1259 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1260 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1261
1262 ieee80211_wake_queues(mvm->hw);
1263
228670b2
EP		 1264 /* clear any stale d0i3 state */
1265 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1266
8ca151b5 1267 mvm->vif_count = 0;
113a0447 1268 mvm->rx_ba_sessions = 0;
d2709ad7 1269 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1270
1271 /* keep statistics ticking */
1272 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1273}
1274
a0a09243 1275int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1276{
8ca151b5
JB		 1277 int ret;
1278
a0a09243 1279 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1280
1281 /* Clean up some internal and mac80211 state on restart */
1282 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1283 iwl_mvm_restart_cleanup(mvm);
1284
1285 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1286
1287 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1288 /* Something went wrong - we need to finish some cleanup
1289 * that normally iwl_mvm_mac_restart_complete() below
1290 * would do.
1291 */
1292 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1293 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1294 }
1295
a0a09243
LC		 1296 return ret;
1297}
1298
1299static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1300{
1301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1302 int ret;
1303
37948fcf
EP		 1304 /* Some hw restart cleanups must not hold the mutex */
1305 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1306 /*
1307 * Make sure we are out of d0i3. This is needed
1308 * to make sure the reference accounting is correct
1309 * (and there is no stale d0i3_exit_work).
1310 */
1311 wait_event_timeout(mvm->d0i3_exit_waitq,
1312 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1313 &mvm->status),
1314 HZ);
1315 }
1316
a0a09243
LC		 1317 mutex_lock(&mvm->mutex);
1318 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1319 mutex_unlock(&mvm->mutex);
1320
1321 return ret;
1322}
1323
cf2c92d8 1324static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1325{
8ca151b5
JB		 1326 int ret;
1327
1328 mutex_lock(&mvm->mutex);
1329
1330 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1331 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1332 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1333 if (ret)
1334 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1335 ret);
1336
7498cf4c
EP		 1337 /* allow transport/FW low power modes */
1338 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1339
cbd2ae2d
AN		 1340 /*
1341 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1342 * of packets the FW sent out, so we must reconnect.
1343 */
1344 iwl_mvm_teardown_tdls_peers(mvm);
1345
8ca151b5
JB		 1346 mutex_unlock(&mvm->mutex);
1347}
1348
088070a2
EP		 1349static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1350{
1351 bool exit_now;
1352
1353 if (!iwl_mvm_is_d0i3_supported(mvm))
1354 return;
1355
1356 mutex_lock(&mvm->d0i3_suspend_mutex);
1357 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1358 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1359 &mvm->d0i3_suspend_flags);
1360 mutex_unlock(&mvm->d0i3_suspend_mutex);
1361
1362 if (exit_now) {
1363 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1364 _iwl_mvm_exit_d0i3(mvm);
1365 }
6735943f
EP		 1366
1367 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1368 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1369 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1370 &mvm->status),
1371 HZ))
1372 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1373}
1374
cf2c92d8
EP		 1375static void
1376iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1377 enum ieee80211_reconfig_type reconfig_type)
1378{
1379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1380
1381 switch (reconfig_type) {
1382 case IEEE80211_RECONFIG_TYPE_RESTART:
1383 iwl_mvm_restart_complete(mvm);
1384 break;
1385 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1386 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1387 break;
1388 }
1389}
1390
a0a09243 1391void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1392{
a0a09243 1393 lockdep_assert_held(&mvm->mutex);
7498cf4c 1394
91a8bcde
JB		 1395 /* firmware counters are obviously reset now, but we shouldn't
1396 * partially track so also clear the fw_reset_accu counters.
1397 */
1398 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1399
0a79a0c0
EP		 1400 /*
1401 * Disallow low power states when the FW is down by taking
1402 * the UCODE_DOWN ref. in case of ongoing hw restart the
1403 * ref is already taken, so don't take it again.
1404 */
1405 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1406 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1407
8ca151b5
JB		 1408 /* async_handlers_wk is now blocked */
1409
1410 /*
1411 * The work item could be running or queued if the
1412 * ROC time event stops just as we get here.
1413 */
c779273b 1414 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1415
1416 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1417
1418 iwl_mvm_async_handlers_purge(mvm);
1419 /* async_handlers_list is empty and will stay empty: HW is stopped */
1420
1421 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1422 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1423
0a79a0c0
EP		 1424 /*
1425 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1426 * won't be called in this case).
1427 */
1428 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1429
963221be
AB		 1430 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1431 * make sure there's nothing left there and warn if any is found.
1432 */
1433 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
1434 int i;
1435
507e4cda 1436 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1437 if (WARN_ONCE(mvm->scan_uid_status[i],
1438 "UMAC scan UID %d status was not cleaned\n",
1439 i))
1440 mvm->scan_uid_status[i] = 0;
963221be
AB		 1441 }
1442 }
1443
bc44886d 1444 mvm->ucode_loaded = false;
a0a09243 1445}
bc44886d 1446
a0a09243
LC		 1447static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1448{
1449 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1450
1451 flush_work(&mvm->d0i3_exit_work);
1452 flush_work(&mvm->async_handlers_wk);
d2709ad7 1453 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1454 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1455
1456 mutex_lock(&mvm->mutex);
1457 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1458 mutex_unlock(&mvm->mutex);
1459
1460 /*
1461 * The worker might have been waiting for the mutex, let it run and
1462 * discover that its list is now empty.
1463 */
1464 cancel_work_sync(&mvm->async_handlers_wk);
1465}
1466
fe0f2de3
IP		 1467static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1468{
1469 u16 i;
1470
1471 lockdep_assert_held(&mvm->mutex);
1472
1473 for (i = 0; i < NUM_PHY_CTX; i++)
1474 if (!mvm->phy_ctxts[i].ref)
1475 return &mvm->phy_ctxts[i];
1476
1477 IWL_ERR(mvm, "No available PHY context\n");
1478 return NULL;
1479}
1480
d44c3fe6
AA		 1481static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1482 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1483{
1484 /* FW is in charge of regulatory enforcement */
1485 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1486 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1487 .pwr_restriction = cpu_to_le16(tx_power),
1488 };
1489
a1022927 1490 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1491 sizeof(reduce_txpwr_cmd),
1492 &reduce_txpwr_cmd);
1493}
1494
d44c3fe6
AA		 1495static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1496 s16 tx_power)
1497{
1498 struct iwl_dev_tx_power_cmd cmd = {
1499 .set_mode = 0,
1500 .mac_context_id =
1501 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1502 .pwr_restriction = cpu_to_le16(8 * tx_power),
1503 };
1504
1505 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_TX_POWER_DEV))
1506 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1507
1508 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1509 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1510
1511 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1512 sizeof(cmd), &cmd);
1513}
1514
8ca151b5
JB		 1515static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1516 struct ieee80211_vif *vif)
1517{
1518 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1519 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1520 int ret;
1521
aa5e1832
EG		 1522 mvmvif->mvm = mvm;
1523
d40fc489
GG		 1524 /*
1525 * make sure D0i3 exit is completed, otherwise a target access
1526 * during tx queue configuration could be done when still in
1527 * D0i3 state.
1528 */
1529 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1530 if (ret)
1531 return ret;
1532
8ca151b5
JB		 1533 /*
1534 * Not much to do here. The stack will not allow interface
1535 * types or combinations that we didn't advertise, so we
1536 * don't really have to check the types.
1537 */
1538
1539 mutex_lock(&mvm->mutex);
1540
33cef925
JB		 1541 /* make sure that beacon statistics don't go backwards with FW reset */
1542 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1543 mvmvif->beacon_stats.accu_num_beacons +=
1544 mvmvif->beacon_stats.num_beacons;
1545
e89044d7 1546 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1547 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1548 if (ret)
1549 goto out_unlock;
1550
1c2abf72 1551 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1552 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1553 mvm->vif_count++;
ea183d02 1554
8ca151b5
JB		 1555 /*
1556 * The AP binding flow can be done only after the beacon
1557 * template is configured (which happens only in the mac80211
1558 * start_ap() flow), and adding the broadcast station can happen
1559 * only after the binding.
1560 * In addition, since modifying the MAC before adding a bcast
1561 * station is not allowed by the FW, delay the adding of MAC context to
1562 * the point where we can also add the bcast station.
1563 * In short: there's not much we can do at this point, other than
1564 * allocating resources :)
1565 */
5023d966
JB		 1566 if (vif->type == NL80211_IFTYPE_AP ||
1567 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1568 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1569 if (ret) {
1570 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1571 goto out_release;
1572 }
1573
77740cb4 1574 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1575 goto out_unlock;
1576 }
1577
8ca151b5
JB		 1578 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1579 if (ret)
1580 goto out_release;
1581
999609f1 1582 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1583 if (ret)
fd66fc1c 1584 goto out_remove_mac;
8ca151b5 1585
7df15b1e 1586 /* beacon filtering */
a1022927 1587 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1588 if (ret)
1589 goto out_remove_mac;
1590
7df15b1e 1591 if (!mvm->bf_allowed_vif &&
73e5f2c5 1592 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1593 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1594 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1595 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1596 }
1597
8ca151b5
JB		 1598 /*
1599 * P2P_DEVICE interface does not have a channel context assigned to it,
1600 * so a dedicated PHY context is allocated to it and the corresponding
1601 * MAC context is bound to it at this stage.
1602 */
1603 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1604
fe0f2de3
IP		 1605 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1606 if (!mvmvif->phy_ctxt) {
1607 ret = -ENOSPC;
bd3351ba 1608 goto out_free_bf;
fe0f2de3 1609 }
8ca151b5 1610
53a9d61e 1611 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1612 ret = iwl_mvm_binding_add_vif(mvm, vif);
1613 if (ret)
53a9d61e 1614 goto out_unref_phy;
8ca151b5 1615
013290aa 1616 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1617 if (ret)
1618 goto out_unbind;
1619
1620 /* Save a pointer to p2p device vif, so it can later be used to
1621 * update the p2p device MAC when a GO is started/stopped */
1622 mvm->p2p_device_vif = vif;
1623 }
1624
63494374 1625 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1626 goto out_unlock;
1627
1628 out_unbind:
1629 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1630 out_unref_phy:
fe0f2de3 1631 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1632 out_free_bf:
1633 if (mvm->bf_allowed_vif == mvmvif) {
1634 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1635 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1636 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1637 }
8ca151b5
JB		 1638 out_remove_mac:
1639 mvmvif->phy_ctxt = NULL;
1640 iwl_mvm_mac_ctxt_remove(mvm, vif);
1641 out_release:
5ee2b215
AB		 1642 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1643 mvm->vif_count--;
1c2abf72 1644
8ca151b5
JB		 1645 iwl_mvm_mac_ctxt_release(mvm, vif);
1646 out_unlock:
1647 mutex_unlock(&mvm->mutex);
1648
d40fc489
GG		 1649 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1650
8ca151b5
JB		 1651 return ret;
1652}
1653
38a12b5b
JB		 1654static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1655 struct ieee80211_vif *vif)
8ca151b5 1656{
d92b732e 1657 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1658
1659 if (tfd_msk) {
fe92e32a
EG		 1660 /*
1661 * mac80211 first removes all the stations of the vif and
1662 * then removes the vif. When it removes a station it also
1663 * flushes the AMPDU session. So by now, all the AMPDU sessions
1664 * of all the stations of this vif are closed, and the queues
1665 * of these AMPDU sessions are properly closed.
1666 * We still need to take care of the shared queues of the vif.
1667 * Flush them here.
1668 */
8ca151b5
JB		 1669 mutex_lock(&mvm->mutex);
1670 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1671 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1672
1673 /*
1674 * There are transports that buffer a few frames in the host.
1675 * For these, the flush above isn't enough since while we were
1676 * flushing, the transport might have sent more frames to the
1677 * device. To solve this, wait here until the transport is
1678 * empty. Technically, this could have replaced the flush
1679 * above, but flush is much faster than draining. So flush
1680 * first, and drain to make sure we have no frames in the
1681 * transport anymore.
1682 * If a station still had frames on the shared queues, it is
1683 * already marked as draining, so to complete the draining, we
1684 * just need to wait until the transport is empty.
1685 */
1686 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1687 }
1688
1689 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1690 /*
1691 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1692 * We assume here that all the packets sent to the OFFCHANNEL
1693 * queue are sent in ROC session.
1694 */
1695 flush_work(&mvm->roc_done_wk);
1696 } else {
1697 /*
1698 * By now, all the AC queues are empty. The AGG queues are
1699 * empty too. We already got all the Tx responses for all the
1700 * packets in the queues. The drain work can have been
0742a75a 1701 * triggered. Flush it.
8ca151b5
JB		 1702 */
1703 flush_work(&mvm->sta_drained_wk);
1704 }
38a12b5b
JB		 1705}
1706
1707static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1708 struct ieee80211_vif *vif)
1709{
1710 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1711 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1712
1713 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1714
1715 mutex_lock(&mvm->mutex);
1716
7df15b1e
HG		 1717 if (mvm->bf_allowed_vif == mvmvif) {
1718 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1719 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1720 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1721 }
1722
63494374
JB		 1723 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1724
8ca151b5
JB		 1725 /*
1726 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1727 * interface is be handled as part of the stop_ap flow.
8ca151b5 1728 */
5023d966
JB		 1729 if (vif->type == NL80211_IFTYPE_AP ||
1730 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1731#ifdef CONFIG_NL80211_TESTMODE
1732 if (vif == mvm->noa_vif) {
1733 mvm->noa_vif = NULL;
1734 mvm->noa_duration = 0;
1735 }
1736#endif
013290aa 1737 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1738 goto out_release;
1739 }
1740
1741 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1742 mvm->p2p_device_vif = NULL;
013290aa 1743 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1744 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1745 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1746 mvmvif->phy_ctxt = NULL;
1747 }
1748
5ee2b215 1749 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1750 mvm->vif_count--;
1c2abf72 1751
999609f1 1752 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1753 iwl_mvm_mac_ctxt_remove(mvm, vif);
1754
1755out_release:
1756 iwl_mvm_mac_ctxt_release(mvm, vif);
1757 mutex_unlock(&mvm->mutex);
1758}
1759
1760static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1761{
8ca151b5
JB		 1762 return 0;
1763}
1764
e59647ea
EP		 1765struct iwl_mvm_mc_iter_data {
1766 struct iwl_mvm *mvm;
1767 int port_id;
1768};
1769
1770static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1771 struct ieee80211_vif *vif)
1772{
1773 struct iwl_mvm_mc_iter_data *data = _data;
1774 struct iwl_mvm *mvm = data->mvm;
1775 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1776 int ret, len;
1777
1778 /* if we don't have free ports, mcast frames will be dropped */
1779 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1780 return;
1781
1782 if (vif->type != NL80211_IFTYPE_STATION ||
1783 !vif->bss_conf.assoc)
1784 return;
1785
1786 cmd->port_id = data->port_id++;
1787 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1788 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1789
1c4abec0 1790 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1791 if (ret)
1792 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1793}
1794
1795static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1796{
1797 struct iwl_mvm_mc_iter_data iter_data = {
1798 .mvm = mvm,
88f2fd73
MG		 1799 };
1800
e59647ea
EP		 1801 lockdep_assert_held(&mvm->mutex);
1802
1803 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1804 return;
1805
1c4abec0 1806 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1807 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1808 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1809}
1810
e59647ea
EP		 1811static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1812 struct netdev_hw_addr_list *mc_list)
8ca151b5 1813{
e59647ea
EP		 1814 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1815 struct iwl_mcast_filter_cmd *cmd;
1816 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1817 int addr_count;
1818 bool pass_all;
e59647ea
EP		 1819 int len;
1820
f3bd58f4
MS		 1821 addr_count = netdev_hw_addr_list_count(mc_list);
1822 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1823 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1824 if (pass_all)
e59647ea 1825 addr_count = 0;
e59647ea
EP		 1826
1827 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1828 cmd = kzalloc(len, GFP_ATOMIC);
1829 if (!cmd)
1830 return 0;
1831
1832 if (pass_all) {
1833 cmd->pass_all = 1;
1834 return (u64)(unsigned long)cmd;
1835 }
1836
1837 netdev_hw_addr_list_for_each(addr, mc_list) {
1838 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1839 cmd->count, addr->addr);
1840 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1841 addr->addr, ETH_ALEN);
1842 cmd->count++;
1843 }
1844
1845 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1846}
1847
1848static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1849 unsigned int changed_flags,
1850 unsigned int *total_flags,
1851 u64 multicast)
1852{
e59647ea
EP		 1853 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1854 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1855
e59647ea 1856 mutex_lock(&mvm->mutex);
51b6b9e0 1857
e59647ea
EP		 1858 /* replace previous configuration */
1859 kfree(mvm->mcast_filter_cmd);
1860 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1861
e59647ea
EP		 1862 if (!cmd)
1863 goto out;
51b6b9e0 1864
e59647ea
EP		 1865 iwl_mvm_recalc_multicast(mvm);
1866out:
1867 mutex_unlock(&mvm->mutex);
1868 *total_flags = 0;
51b6b9e0
EG		 1869}
1870
c87163b9
EP		 1871#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1872struct iwl_bcast_iter_data {
1873 struct iwl_mvm *mvm;
1874 struct iwl_bcast_filter_cmd *cmd;
1875 u8 current_filter;
1876};
1877
1878static void
1879iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1880 const struct iwl_fw_bcast_filter *in_filter,
1881 struct iwl_fw_bcast_filter *out_filter)
1882{
1883 struct iwl_fw_bcast_filter_attr *attr;
1884 int i;
1885
1886 memcpy(out_filter, in_filter, sizeof(*out_filter));
1887
1888 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1889 attr = &out_filter->attrs[i];
1890
1891 if (!attr->mask)
1892 break;
1893
2ee8f021
EP		 1894 switch (attr->reserved1) {
1895 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1896 if (vif->bss_conf.arp_addr_cnt != 1) {
1897 attr->mask = 0;
1898 continue;
1899 }
1900
1901 attr->val = vif->bss_conf.arp_addr_list[0];
1902 break;
1903 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1904 attr->val = *(__be32 *)&vif->addr[2];
1905 break;
1906 default:
1907 break;
1908 }
1909 attr->reserved1 = 0;
c87163b9
EP		 1910 out_filter->num_attrs++;
1911 }
1912}
1913
1914static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1915 struct ieee80211_vif *vif)
1916{
1917 struct iwl_bcast_iter_data *data = _data;
1918 struct iwl_mvm *mvm = data->mvm;
1919 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1920 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1921 struct iwl_fw_bcast_mac *bcast_mac;
1922 int i;
1923
1924 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1925 return;
1926
1927 bcast_mac = &cmd->macs[mvmvif->id];
1928
e48393e8
IP		 1929 /*
1930 * enable filtering only for associated stations, but not for P2P
1931 * Clients
1932 */
1933 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1934 !vif->bss_conf.assoc)
c87163b9
EP		 1935 return;
1936
1937 bcast_mac->default_discard = 1;
1938
1939 /* copy all configured filters */
1940 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1941 /*
1942 * Make sure we don't exceed our filters limit.
1943 * if there is still a valid filter to be configured,
1944 * be on the safe side and just allow bcast for this mac.
1945 */
1946 if (WARN_ON_ONCE(data->current_filter >=
1947 ARRAY_SIZE(cmd->filters))) {
1948 bcast_mac->default_discard = 0;
1949 bcast_mac->attached_filters = 0;
1950 break;
1951 }
1952
1953 iwl_mvm_set_bcast_filter(vif,
1954 &mvm->bcast_filters[i],
1955 &cmd->filters[data->current_filter]);
1956
1957 /* skip current filter if it contains no attributes */
1958 if (!cmd->filters[data->current_filter].num_attrs)
1959 continue;
1960
1961 /* attach the filter to current mac */
1962 bcast_mac->attached_filters |=
1963 cpu_to_le16(BIT(data->current_filter));
1964
1965 data->current_filter++;
1966 }
1967}
1968
de06a59e
EP		 1969bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1970 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1971{
c87163b9
EP		 1972 struct iwl_bcast_iter_data iter_data = {
1973 .mvm = mvm,
de06a59e 1974 .cmd = cmd,
c87163b9
EP		 1975 };
1976
3b8983b1
MS		 1977 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1978 return false;
1979
de06a59e
EP		 1980 memset(cmd, 0, sizeof(*cmd));
1981 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1982 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1983
1984#ifdef CONFIG_IWLWIFI_DEBUGFS
1985 /* use debugfs filters/macs if override is configured */
1986 if (mvm->dbgfs_bcast_filtering.override) {
1987 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1988 sizeof(cmd->filters));
1989 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1990 sizeof(cmd->macs));
1991 return true;
1992 }
1993#endif
c87163b9
EP		 1994
1995 /* if no filters are configured, do nothing */
1996 if (!mvm->bcast_filters)
de06a59e 1997 return false;
c87163b9
EP		 1998
1999 /* configure and attach these filters for each associated sta vif */
2000 ieee80211_iterate_active_interfaces(
2001 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2002 iwl_mvm_bcast_filter_iterator, &iter_data);
2003
de06a59e
EP		 2004 return true;
2005}
2006static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2007 struct ieee80211_vif *vif)
2008{
2009 struct iwl_bcast_filter_cmd cmd;
2010
2011 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2012 return 0;
2013
2014 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2015 return 0;
2016
a1022927 2017 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2018 sizeof(cmd), &cmd);
2019}
2020#else
2021static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2022 struct ieee80211_vif *vif)
2023{
2024 return 0;
2025}
2026#endif
2027
8ca151b5
JB		 2028static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2029 struct ieee80211_vif *vif,
2030 struct ieee80211_bss_conf *bss_conf,
2031 u32 changes)
2032{
2033 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2034 int ret;
2035
6e97b0d2
IP		 2036 /*
2037 * Re-calculate the tsf id, as the master-slave relations depend on the
2038 * beacon interval, which was not known when the station interface was
2039 * added.
2040 */
2041 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2042 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2043
3dfd3a97
JB		 2044 /*
2045 * If we're not associated yet, take the (new) BSSID before associating
2046 * so the firmware knows. If we're already associated, then use the old
2047 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2048 * branch for disassociation below.
2049 */
2050 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2051 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2052
2053 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2054 if (ret)
2055 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2056
3dfd3a97
JB		 2057 /* after sending it once, adopt mac80211 data */
2058 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2059 mvmvif->associated = bss_conf->assoc;
2060
8ca151b5
JB		 2061 if (changes & BSS_CHANGED_ASSOC) {
2062 if (bss_conf->assoc) {
33cef925
JB		 2063 /* clear statistics to get clean beacon counter */
2064 iwl_mvm_request_statistics(mvm, true);
2065 memset(&mvmvif->beacon_stats, 0,
2066 sizeof(mvmvif->beacon_stats));
2067
8ca151b5 2068 /* add quota for this interface */
7754ae79 2069 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2070 if (ret) {
2071 IWL_ERR(mvm, "failed to update quotas\n");
2072 return;
2073 }
016d27e1
JB		 2074
2075 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2076 &mvm->status)) {
2077 /*
2078 * If we're restarting then the firmware will
2079 * obviously have lost synchronisation with
2080 * the AP. It will attempt to synchronise by
2081 * itself, but we can make it more reliable by
2082 * scheduling a session protection time event.
2083 *
2084 * The firmware needs to receive a beacon to
2085 * catch up with synchronisation, use 110% of
2086 * the beacon interval.
2087 *
2088 * Set a large maximum delay to allow for more
2089 * than a single interface.
2090 */
2091 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2092 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2093 5 * dur, false);
016d27e1 2094 }
1f3b0ff8
LE		 2095
2096 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2097 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2098 if (vif->p2p) {
29a90a49 2099 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2100 iwl_mvm_update_smps(mvm, vif,
2101 IWL_MVM_SMPS_REQ_PROT,
2102 IEEE80211_SMPS_DYNAMIC);
2103 }
8ca151b5 2104 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2105 /*
2106 * If update fails - SF might be running in associated
2107 * mode while disassociated - which is forbidden.
2108 */
2109 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2110 "Failed to update SF upon disassociation\n");
2111
8ca151b5
JB		 2112 /* remove AP station now that the MAC is unassoc */
2113 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2114 if (ret)
2115 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2116
2117 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2118 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2119 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2120 /* remove quota for this interface */
7754ae79 2121 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2122 if (ret)
2123 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2124
2125 if (vif->p2p)
2126 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2127
2128 /* this will take the cleared BSSID from bss_conf */
2129 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2130 if (ret)
2131 IWL_ERR(mvm,
2132 "failed to update MAC %pM (clear after unassoc)\n",
2133 vif->addr);
8ca151b5 2134 }
a20fd398 2135
e59647ea 2136 iwl_mvm_recalc_multicast(mvm);
c87163b9 2137 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2138
a20fd398
AO		 2139 /* reset rssi values */
2140 mvmvif->bf_data.ave_beacon_signal = 0;
2141
8e484f0b 2142 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2143 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2144 IEEE80211_SMPS_AUTOMATIC);
989c6505 2145 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2146 /*
2147 * We received a beacon _after_ association so
2148 * remove the session protection.
2149 */
2150 iwl_mvm_remove_time_event(mvm, mvmvif,
2151 &mvmvif->time_event_data);
8ca151b5 2152 }
cc87d322
EH		 2153
2154 if (changes & BSS_CHANGED_BEACON_INFO) {
2155 iwl_mvm_sf_update(mvm, vif, false);
2156 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2157 }
2158
1bc10d3b
JB		 2159 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2160 ret = iwl_mvm_power_update_mac(mvm);
2161 if (ret)
2162 IWL_ERR(mvm, "failed to update power mode\n");
2163 }
2164
88f2fd73
MG		 2165 if (changes & BSS_CHANGED_TXPOWER) {
2166 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2167 bss_conf->txpower);
2168 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2169 }
a20fd398
AO		 2170
2171 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2172 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2173 /* reset cqm events tracking */
2174 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2175 if (mvmvif->bf_data.bf_enabled) {
2176 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2177 if (ret)
2178 IWL_ERR(mvm,
2179 "failed to update CQM thresholds\n");
2180 }
a20fd398 2181 }
2ee8f021
EP		 2182
2183 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2184 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2185 iwl_mvm_configure_bcast_filter(mvm, vif);
2186 }
8ca151b5
JB		 2187}
2188
5023d966
JB		 2189static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2190 struct ieee80211_vif *vif)
8ca151b5
JB		 2191{
2192 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2193 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2194 int ret;
2195
576eeee9
EP		 2196 /*
2197 * iwl_mvm_mac_ctxt_add() might read directly from the device
2198 * (the system time), so make sure it is available.
2199 */
2200 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2201 if (ret)
2202 return ret;
2203
8ca151b5
JB		 2204 mutex_lock(&mvm->mutex);
2205
2206 /* Send the beacon template */
2207 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2208 if (ret)
2209 goto out_unlock;
2210
6e97b0d2
IP		 2211 /*
2212 * Re-calculate the tsf id, as the master-slave relations depend on the
2213 * beacon interval, which was not known when the AP interface was added.
2214 */
2215 if (vif->type == NL80211_IFTYPE_AP)
2216 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2217
8ca151b5
JB		 2218 /* Add the mac context */
2219 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2220 if (ret)
2221 goto out_unlock;
2222
2223 /* Perform the binding */
2224 ret = iwl_mvm_binding_add_vif(mvm, vif);
2225 if (ret)
2226 goto out_remove;
2227
8ca151b5
JB		 2228 /* Send the bcast station. At this stage the TBTT and DTIM time events
2229 * are added and applied to the scheduler */
013290aa 2230 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2231 if (ret)
2232 goto out_unbind;
2233
5691e218
IP		 2234 /* must be set before quota calculations */
2235 mvmvif->ap_ibss_active = true;
2236
a11e144e 2237 /* power updated needs to be done before quotas */
999609f1 2238 iwl_mvm_power_update_mac(mvm);
a11e144e 2239
7754ae79 2240 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2241 if (ret)
a11e144e 2242 goto out_quota_failed;
8ca151b5 2243
5023d966 2244 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2245 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2246 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2247
29a90a49
EP		 2248 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2249
8e484f0b 2250 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2251
f697267f
AN		 2252 /* we don't support TDLS during DCM */
2253 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2254 iwl_mvm_teardown_tdls_peers(mvm);
2255
939e4904 2256 goto out_unlock;
8ca151b5 2257
a11e144e 2258out_quota_failed:
999609f1 2259 iwl_mvm_power_update_mac(mvm);
5691e218 2260 mvmvif->ap_ibss_active = false;
013290aa 2261 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2262out_unbind:
2263 iwl_mvm_binding_remove_vif(mvm, vif);
2264out_remove:
2265 iwl_mvm_mac_ctxt_remove(mvm, vif);
2266out_unlock:
2267 mutex_unlock(&mvm->mutex);
576eeee9 2268 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2269 return ret;
2270}
2271
5023d966
JB		 2272static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2273 struct ieee80211_vif *vif)
8ca151b5
JB		 2274{
2275 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2276 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2277
38a12b5b
JB		 2278 iwl_mvm_prepare_mac_removal(mvm, vif);
2279
8ca151b5
JB		 2280 mutex_lock(&mvm->mutex);
2281
664322fa 2282 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2283 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2284 iwl_mvm_remove_time_event(mvm, mvmvif,
2285 &mvmvif->time_event_data);
664322fa 2286 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2287 }
664322fa 2288
003e5236
AO		 2289 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2290 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2291 mvm->csa_tx_block_bcn_timeout = 0;
2292 }
2293
5023d966 2294 mvmvif->ap_ibss_active = false;
1c87bbad 2295 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2296
8e484f0b 2297 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2298
29a90a49
EP		 2299 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2300
5023d966 2301 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2302 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2303 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2304
7754ae79 2305 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2306 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2307 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2308
999609f1 2309 iwl_mvm_power_update_mac(mvm);
a11e144e 2310
8ca151b5
JB		 2311 iwl_mvm_mac_ctxt_remove(mvm, vif);
2312
2313 mutex_unlock(&mvm->mutex);
2314}
2315
5023d966
JB		 2316static void
2317iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2318 struct ieee80211_vif *vif,
2319 struct ieee80211_bss_conf *bss_conf,
2320 u32 changes)
8ca151b5 2321{
be2056fc 2322 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2323
be2056fc
IP		 2324 /* Changes will be applied when the AP/IBSS is started */
2325 if (!mvmvif->ap_ibss_active)
2326 return;
2327
863230da 2328 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2329 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2330 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2331 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2332
8ca151b5 2333 /* Need to send a new beacon template to the FW */
863230da
JB		 2334 if (changes & BSS_CHANGED_BEACON &&
2335 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2336 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2337
2338 if (changes & BSS_CHANGED_TXPOWER) {
2339 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2340 bss_conf->txpower);
2341 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2342 }
2343
8ca151b5
JB		 2344}
2345
2346static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2347 struct ieee80211_vif *vif,
2348 struct ieee80211_bss_conf *bss_conf,
2349 u32 changes)
2350{
2351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2352
576eeee9
EP		 2353 /*
2354 * iwl_mvm_bss_info_changed_station() might call
2355 * iwl_mvm_protect_session(), which reads directly from
2356 * the device (the system time), so make sure it is available.
2357 */
2358 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2359 return;
2360
8ca151b5
JB		 2361 mutex_lock(&mvm->mutex);
2362
7576d54f 2363 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
62a6b9c8 2364 iwl_mvm_sched_scan_stop(mvm, true);
723f02ed 2365
8ca151b5
JB		 2366 switch (vif->type) {
2367 case NL80211_IFTYPE_STATION:
2368 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2369 break;
2370 case NL80211_IFTYPE_AP:
5023d966
JB		 2371 case NL80211_IFTYPE_ADHOC:
2372 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2373 break;
2374 default:
2375 /* shouldn't happen */
2376 WARN_ON_ONCE(1);
2377 }
2378
2379 mutex_unlock(&mvm->mutex);
576eeee9 2380 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2381}
2382
2383static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2384 struct ieee80211_vif *vif,
c56ef672 2385 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2386{
2387 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2388 int ret;
2389
6749dd80
LC		 2390 if (hw_req->req.n_channels == 0 ||
2391 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2392 return -EINVAL;
2393
bd9564da 2394 mutex_lock(&mvm->mutex);
6749dd80 2395 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2396 mutex_unlock(&mvm->mutex);
6749dd80 2397
8ca151b5
JB		 2398 return ret;
2399}
2400
2401static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2402 struct ieee80211_vif *vif)
2403{
2404 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2405
2406 mutex_lock(&mvm->mutex);
2407
e7d3abab
LC		 2408 /* Due to a race condition, it's possible that mac80211 asks
2409 * us to stop a hw_scan when it's already stopped. This can
2410 * happen, for instance, if we stopped the scan ourselves,
2411 * called ieee80211_scan_completed() and the userspace called
2412 * cancel scan scan before ieee80211_scan_work() could run.
2413 * To handle that, simply return if the scan is not running.
2414 */
2415 /* FIXME: for now, we ignore this race for UMAC scans, since
2416 * they don't set the scan_status.
2417 */
9af91f46 2418 if ((mvm->scan_status & IWL_MVM_SCAN_REGULAR) ||
e7d3abab 2419 (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN))
62a6b9c8 2420 iwl_mvm_reg_scan_stop(mvm);
8ca151b5
JB		 2421
2422 mutex_unlock(&mvm->mutex);
2423}
2424
2425static void
2426iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2427 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2428 int num_frames,
2429 enum ieee80211_frame_release_type reason,
2430 bool more_data)
2431{
2432 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2433
3e56eadf 2434 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2435
3e56eadf
JB		 2436 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2437 tids, more_data, false);
2438}
2439
2440static void
2441iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2442 struct ieee80211_sta *sta, u16 tids,
2443 int num_frames,
2444 enum ieee80211_frame_release_type reason,
2445 bool more_data)
2446{
2447 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2448
2449 /* Called when we need to transmit (a) frame(s) from agg queue */
2450
2451 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2452 tids, more_data, true);
8ca151b5
JB		 2453}
2454
2455static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2456 struct ieee80211_vif *vif,
2457 enum sta_notify_cmd cmd,
2458 struct ieee80211_sta *sta)
2459{
2460 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2461 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2462 unsigned long txqs = 0, tids = 0;
3e56eadf 2463 int tid;
8ca151b5 2464
c22b0ff5
EG		 2465 spin_lock_bh(&mvmsta->lock);
2466 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2467 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2468
2469 if (tid_data->state != IWL_AGG_ON &&
2470 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2471 continue;
2472
2473 __set_bit(tid_data->txq_id, &txqs);
2474
2475 if (iwl_mvm_tid_queued(tid_data) == 0)
2476 continue;
2477
2478 __set_bit(tid, &tids);
2479 }
2480
8ca151b5
JB		 2481 switch (cmd) {
2482 case STA_NOTIFY_SLEEP:
e3d4bc8c 2483 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2484 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2485
c22b0ff5 2486 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2487 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2488
2489 if (txqs)
2490 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2491 /*
2492 * The fw updates the STA to be asleep. Tx packets on the Tx
2493 * queues to this station will not be transmitted. The fw will
2494 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2495 */
2496 break;
2497 case STA_NOTIFY_AWAKE:
881acd89 2498 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2499 break;
c22b0ff5
EG		 2500
2501 if (txqs)
2502 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2503 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2504 break;
2505 default:
2506 break;
2507 }
c22b0ff5 2508 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2509}
2510
1ddbbb0c
JB		 2511static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2512 struct ieee80211_vif *vif,
2513 struct ieee80211_sta *sta)
2514{
2515 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2516 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2517
2518 /*
2519 * This is called before mac80211 does RCU synchronisation,
2520 * so here we already invalidate our internal RCU-protected
2521 * station pointer. The rest of the code will thus no longer
2522 * be able to find the station this way, and we don't rely
2523 * on further RCU synchronisation after the sta_state()
2524 * callback deleted the station.
2525 */
2526 mutex_lock(&mvm->mutex);
2527 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2528 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2529 ERR_PTR(-ENOENT));
2530 mutex_unlock(&mvm->mutex);
2531}
2532
bd1ba664
JB		 2533static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2534 const u8 *bssid)
2535{
2536 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2537 return;
2538
2539 if (iwlwifi_mod_params.uapsd_disable) {
2540 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2541 return;
2542 }
2543
2544 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2545}
2546
8ca151b5
JB		 2547static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2548 struct ieee80211_vif *vif,
2549 struct ieee80211_sta *sta,
2550 enum ieee80211_sta_state old_state,
2551 enum ieee80211_sta_state new_state)
2552{
2553 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2554 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2555 int ret;
2556
2557 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2558 sta->addr, old_state, new_state);
2559
2560 /* this would be a mac80211 bug ... but don't crash */
2561 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2562 return -EINVAL;
2563
2564 /* if a STA is being removed, reuse its ID */
2565 flush_work(&mvm->sta_drained_wk);
2566
2567 mutex_lock(&mvm->mutex);
2568 if (old_state == IEEE80211_STA_NOTEXIST &&
2569 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2570 /*
2571 * Firmware bug - it'll crash if the beacon interval is less
2572 * than 16. We can't avoid connecting at all, so refuse the
2573 * station state change, this will cause mac80211 to abandon
2574 * attempts to connect to this AP, and eventually wpa_s will
2575 * blacklist the AP...
2576 */
2577 if (vif->type == NL80211_IFTYPE_STATION &&
2578 vif->bss_conf.beacon_int < 16) {
2579 IWL_ERR(mvm,
2580 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2581 sta->addr, vif->bss_conf.beacon_int);
2582 ret = -EINVAL;
2583 goto out_unlock;
2584 }
cf7b491d
AN		 2585
2586 if (sta->tdls &&
2587 (vif->p2p ||
fa3d07e4
AN		 2588 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2589 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2590 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2591 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2592 ret = -EBUSY;
2593 goto out_unlock;
2594 }
2595
8ca151b5 2596 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2597 if (sta->tdls && ret == 0)
2598 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2599 } else if (old_state == IEEE80211_STA_NONE &&
2600 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2601 /*
2602 * EBS may be disabled due to previous failures reported by FW.
2603 * Reset EBS status here assuming environment has been changed.
2604 */
2605 mvm->last_ebs_successful = true;
bd1ba664 2606 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2607 ret = 0;
2608 } else if (old_state == IEEE80211_STA_AUTH &&
2609 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2610 ret = iwl_mvm_update_sta(mvm, vif, sta);
2611 if (ret == 0)
2612 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2613 mvmvif->phy_ctxt->channel->band,
2614 true);
8ca151b5
JB		 2615 } else if (old_state == IEEE80211_STA_ASSOC &&
2616 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2617
2618 /* we don't support TDLS during DCM */
2619 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2620 iwl_mvm_teardown_tdls_peers(mvm);
2621
7df15b1e 2622 /* enable beacon filtering */
fa7b2e7f 2623 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2624 ret = 0;
2625 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2626 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2627 /* disable beacon filtering */
a1022927 2628 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2629 ret = 0;
2630 } else if (old_state == IEEE80211_STA_ASSOC &&
2631 new_state == IEEE80211_STA_AUTH) {
2632 ret = 0;
2633 } else if (old_state == IEEE80211_STA_AUTH &&
2634 new_state == IEEE80211_STA_NONE) {
2635 ret = 0;
2636 } else if (old_state == IEEE80211_STA_NONE &&
2637 new_state == IEEE80211_STA_NOTEXIST) {
2638 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2639 if (sta->tdls)
2640 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2641 } else {
2642 ret = -EIO;
2643 }
48bc1307 2644 out_unlock:
8ca151b5
JB		 2645 mutex_unlock(&mvm->mutex);
2646
9c126cd6
LK		 2647 if (sta->tdls && ret == 0) {
2648 if (old_state == IEEE80211_STA_NOTEXIST &&
2649 new_state == IEEE80211_STA_NONE)
2650 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2651 else if (old_state == IEEE80211_STA_NONE &&
2652 new_state == IEEE80211_STA_NOTEXIST)
2653 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2654 }
2655
8ca151b5
JB		 2656 return ret;
2657}
2658
2659static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2660{
2661 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2662
2663 mvm->rts_threshold = value;
2664
2665 return 0;
2666}
2667
1f3b0ff8
LE		 2668static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2669 struct ieee80211_vif *vif,
2670 struct ieee80211_sta *sta, u32 changed)
2671{
2672 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2673
2674 if (vif->type == NL80211_IFTYPE_STATION &&
2675 changed & IEEE80211_RC_NSS_CHANGED)
2676 iwl_mvm_sf_update(mvm, vif, false);
2677}
2678
8ca151b5
JB		 2679static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2680 struct ieee80211_vif *vif, u16 ac,
2681 const struct ieee80211_tx_queue_params *params)
2682{
2683 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2684 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2685
2686 mvmvif->queue_params[ac] = *params;
2687
2688 /*
2689 * No need to update right away, we'll get BSS_CHANGED_QOS
2690 * The exception is P2P_DEVICE interface which needs immediate update.
2691 */
2692 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2693 int ret;
2694
2695 mutex_lock(&mvm->mutex);
3dfd3a97 2696 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2697 mutex_unlock(&mvm->mutex);
2698 return ret;
2699 }
2700 return 0;
2701}
2702
2703static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2704 struct ieee80211_vif *vif)
2705{
2706 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2707 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2708 200 + vif->bss_conf.beacon_int);
2709 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2710 100 + vif->bss_conf.beacon_int);
2711
2712 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2713 return;
2714
576eeee9
EP		 2715 /*
2716 * iwl_mvm_protect_session() reads directly from the device
2717 * (the system time), so make sure it is available.
2718 */
2719 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2720 return;
2721
8ca151b5
JB		 2722 mutex_lock(&mvm->mutex);
2723 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2724 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2725 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2726
2727 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2728}
2729
35a000b7
DS		 2730static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2731 struct ieee80211_vif *vif,
2732 struct cfg80211_sched_scan_request *req,
633e2713 2733 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2734{
2735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6749dd80 2736
35a000b7
DS		 2737 int ret;
2738
bd9564da
LC		 2739 mutex_lock(&mvm->mutex);
2740
1f940386 2741 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2742 ret = -EBUSY;
2743 goto out;
2744 }
2745
19945dfb 2746 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2747
35a000b7
DS		 2748out:
2749 mutex_unlock(&mvm->mutex);
2750 return ret;
2751}
2752
37e3308c
JB		 2753static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2754 struct ieee80211_vif *vif)
35a000b7
DS		 2755{
2756 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2757 int ret;
35a000b7
DS		 2758
2759 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2760
2761 /* Due to a race condition, it's possible that mac80211 asks
2762 * us to stop a sched_scan when it's already stopped. This
2763 * can happen, for instance, if we stopped the scan ourselves,
2764 * called ieee80211_sched_scan_stopped() and the userspace called
2765 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2766 * could run. To handle this, simply return if the scan is
2767 * not running.
2768 */
2769 /* FIXME: for now, we ignore this race for UMAC scans, since
2770 * they don't set the scan_status.
2771 */
9af91f46 2772 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED) &&
e7d3abab
LC		 2773 !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2774 mutex_unlock(&mvm->mutex);
2775 return 0;
2776 }
2777
62a6b9c8 2778 ret = iwl_mvm_sched_scan_stop(mvm, false);
35a000b7 2779 mutex_unlock(&mvm->mutex);
33ea27f6 2780 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2781
33ea27f6 2782 return ret;
35a000b7
DS		 2783}
2784
8ca151b5
JB		 2785static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2786 enum set_key_cmd cmd,
2787 struct ieee80211_vif *vif,
2788 struct ieee80211_sta *sta,
2789 struct ieee80211_key_conf *key)
2790{
2791 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2792 int ret;
2793
2794 if (iwlwifi_mod_params.sw_crypto) {
2795 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2796 return -EOPNOTSUPP;
2797 }
2798
2799 switch (key->cipher) {
2800 case WLAN_CIPHER_SUITE_TKIP:
2801 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2802 /* fall-through */
2803 case WLAN_CIPHER_SUITE_CCMP:
2804 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2805 break;
2806 case WLAN_CIPHER_SUITE_AES_CMAC:
2807 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2808 break;
2809 case WLAN_CIPHER_SUITE_WEP40:
2810 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2811 /* For non-client mode, only use WEP keys for TX as we probably
2812 * don't have a station yet anyway and would then have to keep
2813 * track of the keys, linking them to each of the clients/peers
2814 * as they appear. For now, don't do that, for performance WEP
2815 * offload doesn't really matter much, but we need it for some
2816 * other offload features in client mode.
8ca151b5 2817 */
ba3943b0
JB		 2818 if (vif->type != NL80211_IFTYPE_STATION)
2819 return 0;
2820 break;
8ca151b5 2821 default:
e36e5433
MS		 2822 /* currently FW supports only one optional cipher scheme */
2823 if (hw->n_cipher_schemes &&
2824 hw->cipher_schemes->cipher == key->cipher)
2825 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2826 else
2827 return -EOPNOTSUPP;
8ca151b5
JB		 2828 }
2829
2830 mutex_lock(&mvm->mutex);
2831
2832 switch (cmd) {
2833 case SET_KEY:
5023d966
JB		 2834 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2835 vif->type == NL80211_IFTYPE_AP) && !sta) {
2836 /*
2837 * GTK on AP interface is a TX-only key, return 0;
2838 * on IBSS they're per-station and because we're lazy
2839 * we don't support them for RX, so do the same.
2840 */
6caffd4f
JB		 2841 ret = 0;
2842 key->hw_key_idx = STA_KEY_IDX_INVALID;
2843 break;
2844 }
2845
b546dcd6
JB		 2846 /* During FW restart, in order to restore the state as it was,
2847 * don't try to reprogram keys we previously failed for.
2848 */
2849 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2850 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2851 IWL_DEBUG_MAC80211(mvm,
2852 "skip invalid idx key programming during restart\n");
2853 ret = 0;
2854 break;
2855 }
2856
8ca151b5 2857 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2858 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2859 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2860 &mvm->status));
8ca151b5
JB		 2861 if (ret) {
2862 IWL_WARN(mvm, "set key failed\n");
2863 /*
2864 * can't add key for RX, but we don't need it
2865 * in the device for TX so still return 0
2866 */
6caffd4f 2867 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2868 ret = 0;
2869 }
2870
2871 break;
2872 case DISABLE_KEY:
6caffd4f
JB		 2873 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2874 ret = 0;
2875 break;
2876 }
2877
8ca151b5
JB		 2878 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2879 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2880 break;
2881 default:
2882 ret = -EINVAL;
2883 }
2884
2885 mutex_unlock(&mvm->mutex);
2886 return ret;
2887}
2888
2889static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2890 struct ieee80211_vif *vif,
2891 struct ieee80211_key_conf *keyconf,
2892 struct ieee80211_sta *sta,
2893 u32 iv32, u16 *phase1key)
2894{
2895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2896
5023d966
JB		 2897 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2898 return;
2899
8ca151b5
JB		 2900 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2901}
2902
2903
b112889c
AM		 2904static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2905 struct iwl_rx_packet *pkt, void *data)
2906{
2907 struct iwl_mvm *mvm =
2908 container_of(notif_wait, struct iwl_mvm, notif_wait);
2909 struct iwl_hs20_roc_res *resp;
2910 int resp_len = iwl_rx_packet_payload_len(pkt);
2911 struct iwl_mvm_time_event_data *te_data = data;
2912
2913 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2914 return true;
2915
2916 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2917 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2918 return true;
2919 }
2920
2921 resp = (void *)pkt->data;
2922
2923 IWL_DEBUG_TE(mvm,
2924 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2925 resp->status, resp->event_unique_id);
2926
2927 te_data->uid = le32_to_cpu(resp->event_unique_id);
2928 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2929 te_data->uid);
2930
2931 spin_lock_bh(&mvm->time_event_lock);
2932 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2933 spin_unlock_bh(&mvm->time_event_lock);
2934
2935 return true;
2936}
2937
35d3dab5 2938#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 2939static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2940 struct ieee80211_channel *channel,
2941 struct ieee80211_vif *vif,
2942 int duration)
2943{
2944 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2945 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2946 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2947 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2948 struct iwl_notification_wait wait_time_event;
2949 struct iwl_hs20_roc_req aux_roc_req = {
2950 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2951 .id_and_color =
2952 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2953 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2954 /* Set the channel info data */
2955 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2956 PHY_BAND_24 : PHY_BAND_5,
2957 .channel_info.channel = channel->hw_value,
2958 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2959 /* Set the time and duration */
2960 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2961 .apply_time_max_delay =
2962 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2963 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2964 };
2965
2966 /* Set the node address */
2967 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2968
a6cc5163
MG		 2969 lockdep_assert_held(&mvm->mutex);
2970
2971 spin_lock_bh(&mvm->time_event_lock);
2972
2973 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2974 spin_unlock_bh(&mvm->time_event_lock);
2975 return -EIO;
2976 }
2977
b112889c
AM		 2978 te_data->vif = vif;
2979 te_data->duration = duration;
2980 te_data->id = HOT_SPOT_CMD;
2981
b112889c
AM		 2982 spin_unlock_bh(&mvm->time_event_lock);
2983
2984 /*
2985 * Use a notification wait, which really just processes the
2986 * command response and doesn't wait for anything, in order
2987 * to be able to process the response and get the UID inside
2988 * the RX path. Using CMD_WANT_SKB doesn't work because it
2989 * stores the buffer and then wakes up this thread, by which
2990 * time another notification (that the time event started)
2991 * might already be processed unsuccessfully.
2992 */
2993 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2994 time_event_response,
2995 ARRAY_SIZE(time_event_response),
2996 iwl_mvm_rx_aux_roc, te_data);
2997
2998 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2999 &aux_roc_req);
3000
3001 if (res) {
3002 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3003 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3004 goto out_clear_te;
3005 }
3006
3007 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3008 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3009 /* should never fail */
3010 WARN_ON_ONCE(res);
3011
3012 if (res) {
3013 out_clear_te:
3014 spin_lock_bh(&mvm->time_event_lock);
3015 iwl_mvm_te_clear_data(mvm, te_data);
3016 spin_unlock_bh(&mvm->time_event_lock);
3017 }
3018
3019 return res;
3020}
3021
8ca151b5
JB		 3022static int iwl_mvm_roc(struct ieee80211_hw *hw,
3023 struct ieee80211_vif *vif,
3024 struct ieee80211_channel *channel,
d339d5ca
IP		 3025 int duration,
3026 enum ieee80211_roc_type type)
8ca151b5
JB		 3027{
3028 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3029 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3030 struct cfg80211_chan_def chandef;
31d385ae
IP		 3031 struct iwl_mvm_phy_ctxt *phy_ctxt;
3032 int ret, i;
3033
3034 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3035 duration, type);
8ca151b5 3036
6ed13164
MG		 3037 flush_work(&mvm->roc_done_wk);
3038
a6cc5163
MG		 3039 mutex_lock(&mvm->mutex);
3040
b112889c
AM		 3041 switch (vif->type) {
3042 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 3043 if (mvm->fw->ucode_capa.capa[0] &
3044 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
3045 /* Use aux roc framework (HS20) */
3046 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3047 vif, duration);
3048 goto out_unlock;
3049 }
3050 IWL_ERR(mvm, "hotspot not supported\n");
3051 ret = -EINVAL;
a6cc5163 3052 goto out_unlock;
b112889c
AM		 3053 case NL80211_IFTYPE_P2P_DEVICE:
3054 /* handle below */
3055 break;
3056 default:
3057 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3058 ret = -EINVAL;
3059 goto out_unlock;
8ca151b5
JB		 3060 }
3061
31d385ae
IP		 3062 for (i = 0; i < NUM_PHY_CTX; i++) {
3063 phy_ctxt = &mvm->phy_ctxts[i];
3064 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3065 continue;
3066
3067 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3068 /*
3069 * Unbind the P2P_DEVICE from the current PHY context,
3070 * and if the PHY context is not used remove it.
3071 */
3072 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3073 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3074 goto out_unlock;
3075
3076 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3077
3078 /* Bind the P2P_DEVICE to the current PHY Context */
3079 mvmvif->phy_ctxt = phy_ctxt;
3080
3081 ret = iwl_mvm_binding_add_vif(mvm, vif);
3082 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3083 goto out_unlock;
3084
3085 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3086 goto schedule_time_event;
3087 }
3088 }
3089
3090 /* Need to update the PHY context only if the ROC channel changed */
3091 if (channel == mvmvif->phy_ctxt->channel)
3092 goto schedule_time_event;
3093
8ca151b5 3094 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3095
31d385ae
IP		 3096 /*
3097 * Change the PHY context configuration as it is currently referenced
3098 * only by the P2P Device MAC
3099 */
3100 if (mvmvif->phy_ctxt->ref == 1) {
3101 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3102 &chandef, 1, 1);
3103 if (ret)
3104 goto out_unlock;
3105 } else {
3106 /*
3107 * The PHY context is shared with other MACs. Need to remove the
3108 * P2P Device from the binding, allocate an new PHY context and
3109 * create a new binding
3110 */
3111 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3112 if (!phy_ctxt) {
3113 ret = -ENOSPC;
3114 goto out_unlock;
3115 }
3116
3117 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3118 1, 1);
3119 if (ret) {
3120 IWL_ERR(mvm, "Failed to change PHY context\n");
3121 goto out_unlock;
3122 }
3123
3124 /* Unbind the P2P_DEVICE from the current PHY context */
3125 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3126 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3127 goto out_unlock;
3128
3129 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3130
3131 /* Bind the P2P_DEVICE to the new allocated PHY context */
3132 mvmvif->phy_ctxt = phy_ctxt;
3133
3134 ret = iwl_mvm_binding_add_vif(mvm, vif);
3135 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3136 goto out_unlock;
3137
3138 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3139 }
3140
3141schedule_time_event:
8ca151b5 3142 /* Schedule the time events */
e635c797 3143 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3144
31d385ae 3145out_unlock:
8ca151b5
JB		 3146 mutex_unlock(&mvm->mutex);
3147 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3148 return ret;
3149}
3150
3151static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3152{
3153 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3154
3155 IWL_DEBUG_MAC80211(mvm, "enter\n");
3156
3157 mutex_lock(&mvm->mutex);
bf5da87f 3158 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3159 mutex_unlock(&mvm->mutex);
3160
3161 IWL_DEBUG_MAC80211(mvm, "leave\n");
3162 return 0;
3163}
3164
b08c1d97
LC		 3165static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3166 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3167{
fe0f2de3
IP		 3168 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3169 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3170 int ret;
3171
b08c1d97
LC		 3172 lockdep_assert_held(&mvm->mutex);
3173
53a9d61e 3174 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3175
fe0f2de3
IP		 3176 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3177 if (!phy_ctxt) {
3178 ret = -ENOSPC;
3179 goto out;
3180 }
8ca151b5 3181
dcbc3e1a 3182 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3183 ctx->rx_chains_static,
3184 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3185 if (ret) {
3186 IWL_ERR(mvm, "Failed to add PHY context\n");
3187 goto out;
3188 }
3189
53a9d61e 3190 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3191 *phy_ctxt_id = phy_ctxt->id;
3192out:
b08c1d97
LC		 3193 return ret;
3194}
3195
3196static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3197 struct ieee80211_chanctx_conf *ctx)
3198{
3199 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3200 int ret;
3201
3202 mutex_lock(&mvm->mutex);
3203 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3204 mutex_unlock(&mvm->mutex);
b08c1d97 3205
8ca151b5
JB		 3206 return ret;
3207}
3208
b08c1d97
LC		 3209static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3210 struct ieee80211_chanctx_conf *ctx)
3211{
3212 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3213 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3214
3215 lockdep_assert_held(&mvm->mutex);
3216
3217 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3218}
3219
8ca151b5
JB		 3220static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3221 struct ieee80211_chanctx_conf *ctx)
3222{
3223 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3224
3225 mutex_lock(&mvm->mutex);
b08c1d97 3226 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3227 mutex_unlock(&mvm->mutex);
3228}
3229
3230static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3231 struct ieee80211_chanctx_conf *ctx,
3232 u32 changed)
3233{
3234 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3235 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3236 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3237
31d385ae
IP		 3238 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3239 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3240 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3241 IEEE80211_CHANCTX_CHANGE_RADAR |
3242 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3243 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3244 phy_ctxt->ref, changed))
3245 return;
3246
8ca151b5 3247 mutex_lock(&mvm->mutex);
4d66449a 3248 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3249 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3250 ctx->rx_chains_static,
3251 ctx->rx_chains_dynamic);
3252 mutex_unlock(&mvm->mutex);
3253}
3254
b08c1d97
LC		 3255static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3256 struct ieee80211_vif *vif,
f0c97783
LC		 3257 struct ieee80211_chanctx_conf *ctx,
3258 bool switching_chanctx)
8ca151b5 3259{
fe0f2de3
IP		 3260 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3261 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3262 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3263 int ret;
3264
b08c1d97 3265 lockdep_assert_held(&mvm->mutex);
8ca151b5 3266
fe0f2de3 3267 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3268
3269 switch (vif->type) {
3270 case NL80211_IFTYPE_AP:
4741dd04
LC		 3271 /* only needed if we're switching chanctx (i.e. during CSA) */
3272 if (switching_chanctx) {
bd3398e2
AO		 3273 mvmvif->ap_ibss_active = true;
3274 break;
3275 }
5023d966 3276 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3277 /*
3278 * The AP binding flow is handled as part of the start_ap flow
5023d966 3279 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3280 */
3281 ret = 0;
b08c1d97 3282 goto out;
8ca151b5 3283 case NL80211_IFTYPE_STATION:
2533edce 3284 break;
8ca151b5 3285 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3286 /* always disable PS when a monitor interface is active */
3287 mvmvif->ps_disabled = true;
8ca151b5
JB		 3288 break;
3289 default:
3290 ret = -EINVAL;
b08c1d97 3291 goto out;
8ca151b5
JB		 3292 }
3293
3294 ret = iwl_mvm_binding_add_vif(mvm, vif);
3295 if (ret)
b08c1d97 3296 goto out;
8ca151b5
JB		 3297
3298 /*
92d85562
AB		 3299 * Power state must be updated before quotas,
3300 * otherwise fw will complain.
3301 */
999609f1 3302 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3303
3304 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3305 * interfaces. For the other types, the bss_info changed flow
3306 * will handle quota settings.
3307 */
3308 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3309 mvmvif->monitor_active = true;
7754ae79 3310 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3311 if (ret)
3312 goto out_remove_binding;
3313 }
3314
bd3398e2 3315 /* Handle binding during CSA */
a57c688d 3316 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3317 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3318 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3319 }
3320
4741dd04 3321 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3322 u32 duration = 2 * vif->bss_conf.beacon_int;
3323
3324 /* iwl_mvm_protect_session() reads directly from the
3325 * device (the system time), so make sure it is
3326 * available.
3327 */
3328 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3329 if (ret)
3330 goto out_remove_binding;
3331
3332 /* Protect the session to make sure we hear the first
3333 * beacon on the new channel.
3334 */
3335 iwl_mvm_protect_session(mvm, vif, duration, duration,
3336 vif->bss_conf.beacon_int / 2,
3337 true);
3338
3339 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3340
7754ae79 3341 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3342 }
3343
b08c1d97 3344 goto out;
8ca151b5 3345
b08c1d97 3346out_remove_binding:
8ca151b5 3347 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3348 iwl_mvm_power_update_mac(mvm);
b08c1d97 3349out:
8ca151b5
JB		 3350 if (ret)
3351 mvmvif->phy_ctxt = NULL;
3352 return ret;
3353}
b08c1d97
LC		 3354static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3355 struct ieee80211_vif *vif,
3356 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3357{
3358 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3359 int ret;
8ca151b5
JB		 3360
3361 mutex_lock(&mvm->mutex);
f0c97783 3362 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3363 mutex_unlock(&mvm->mutex);
3364
3365 return ret;
3366}
3367
3368static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3369 struct ieee80211_vif *vif,
f0c97783
LC		 3370 struct ieee80211_chanctx_conf *ctx,
3371 bool switching_chanctx)
b08c1d97
LC		 3372{
3373 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3374 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3375
3376 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3377
3378 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3379
8ca151b5 3380 switch (vif->type) {
5023d966 3381 case NL80211_IFTYPE_ADHOC:
b08c1d97 3382 goto out;
8ca151b5 3383 case NL80211_IFTYPE_MONITOR:
1e1391ca 3384 mvmvif->monitor_active = false;
2533edce 3385 mvmvif->ps_disabled = false;
8ca151b5 3386 break;
bd3398e2
AO		 3387 case NL80211_IFTYPE_AP:
3388 /* This part is triggered only during CSA */
4741dd04 3389 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3390 goto out;
bd3398e2 3391
7ef0aab6
AO		 3392 mvmvif->csa_countdown = false;
3393
003e5236
AO		 3394 /* Set CS bit on all the stations */
3395 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3396
3397 /* Save blocked iface, the timeout is set on the next beacon */
3398 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3399
bd3398e2 3400 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3401 break;
3402 case NL80211_IFTYPE_STATION:
3403 if (!switching_chanctx)
3404 break;
3405
3406 disabled_vif = vif;
3407
3dfd3a97 3408 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3409 break;
8ca151b5
JB		 3410 default:
3411 break;
3412 }
3413
7754ae79 3414 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3415 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3416
b08c1d97 3417out:
a11e144e 3418 mvmvif->phy_ctxt = NULL;
999609f1 3419 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3420}
3421
3422static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3423 struct ieee80211_vif *vif,
3424 struct ieee80211_chanctx_conf *ctx)
3425{
3426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3427
3428 mutex_lock(&mvm->mutex);
f0c97783 3429 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3430 mutex_unlock(&mvm->mutex);
3431}
3432
50cc9574
LC		 3433static int
3434iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3435 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3436{
b08c1d97
LC		 3437 int ret;
3438
b08c1d97 3439 mutex_lock(&mvm->mutex);
f0c97783 3440 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3441 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3442
3443 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3444 if (ret) {
3445 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3446 goto out_reassign;
3447 }
3448
f0c97783
LC		 3449 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3450 true);
b08c1d97
LC		 3451 if (ret) {
3452 IWL_ERR(mvm,
3453 "failed to assign new_ctx during channel switch\n");
3454 goto out_remove;
3455 }
3456
f697267f
AN		 3457 /* we don't support TDLS during DCM - can be caused by channel switch */
3458 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3459 iwl_mvm_teardown_tdls_peers(mvm);
3460
b08c1d97
LC		 3461 goto out;
3462
3463out_remove:
3464 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3465
3466out_reassign:
6fd1fb63 3467 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3468 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3469 goto out_restart;
3470 }
3471
6fd1fb63
LC		 3472 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3473 true)) {
b08c1d97
LC		 3474 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3475 goto out_restart;
3476 }
3477
3478 goto out;
3479
3480out_restart:
3481 /* things keep failing, better restart the hw */
3482 iwl_mvm_nic_restart(mvm, false);
3483
3484out:
3485 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3486
3487 return ret;
3488}
3489
48a256e8
LC		 3490static int
3491iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3492 struct ieee80211_vif_chanctx_switch *vifs)
3493{
3494 int ret;
3495
3496 mutex_lock(&mvm->mutex);
3497 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3498
3499 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3500 true);
3501 if (ret) {
3502 IWL_ERR(mvm,
3503 "failed to assign new_ctx during channel switch\n");
3504 goto out_reassign;
3505 }
3506
3507 goto out;
3508
3509out_reassign:
3510 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3511 true)) {
3512 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3513 goto out_restart;
3514 }
3515
3516 goto out;
3517
3518out_restart:
3519 /* things keep failing, better restart the hw */
3520 iwl_mvm_nic_restart(mvm, false);
3521
3522out:
3523 mutex_unlock(&mvm->mutex);
3524
3525 return ret;
3526}
3527
50cc9574
LC		 3528static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3529 struct ieee80211_vif_chanctx_switch *vifs,
3530 int n_vifs,
3531 enum ieee80211_chanctx_switch_mode mode)
3532{
3533 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3534 int ret;
3535
3536 /* we only support a single-vif right now */
3537 if (n_vifs > 1)
3538 return -EOPNOTSUPP;
3539
3540 switch (mode) {
3541 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3542 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3543 break;
3544 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3545 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3546 break;
3547 default:
3548 ret = -EOPNOTSUPP;
3549 break;
3550 }
3551
b08c1d97
LC		 3552 return ret;
3553}
3554
8ca151b5
JB		 3555static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3556 struct ieee80211_sta *sta,
3557 bool set)
3558{
3559 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3560 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3561
3562 if (!mvm_sta || !mvm_sta->vif) {
3563 IWL_ERR(mvm, "Station is not associated to a vif\n");
3564 return -EINVAL;
3565 }
3566
3567 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3568}
3569
507cadf2
DS		 3570#ifdef CONFIG_NL80211_TESTMODE
3571static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3572 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3573 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3574 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3575};
3576
3577static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3578 struct ieee80211_vif *vif,
3579 void *data, int len)
3580{
3581 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3582 int err;
3583 u32 noa_duration;
3584
3585 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3586 if (err)
3587 return err;
3588
3589 if (!tb[IWL_MVM_TM_ATTR_CMD])
3590 return -EINVAL;
3591
3592 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3593 case IWL_MVM_TM_CMD_SET_NOA:
3594 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3595 !vif->bss_conf.enable_beacon ||
3596 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3597 return -EINVAL;
3598
3599 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3600 if (noa_duration >= vif->bss_conf.beacon_int)
3601 return -EINVAL;
3602
3603 mvm->noa_duration = noa_duration;
3604 mvm->noa_vif = vif;
3605
7754ae79 3606 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3607 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3608 /* must be associated client vif - ignore authorized */
3609 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3610 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3611 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3612 return -EINVAL;
3613
3614 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3615 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3616 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3617 }
3618
3619 return -EOPNOTSUPP;
3620}
3621
3622static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3623 struct ieee80211_vif *vif,
3624 void *data, int len)
3625{
3626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3627 int err;
3628
3629 mutex_lock(&mvm->mutex);
3630 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3631 mutex_unlock(&mvm->mutex);
3632
3633 return err;
3634}
3635#endif
3636
622e3f9b
LC		 3637static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3638 struct ieee80211_vif *vif,
3639 struct ieee80211_channel_switch *chsw)
3640{
3641 /* By implementing this operation, we prevent mac80211 from
3642 * starting its own channel switch timer, so that we can call
3643 * ieee80211_chswitch_done() ourselves at the right time
3644 * (which is when the absence time event starts).
3645 */
3646
3647 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3648 "dummy channel switch op\n");
3649}
3650
f028905c
LC		 3651static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3652 struct ieee80211_vif *vif,
3653 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3654{
3655 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3656 struct ieee80211_vif *csa_vif;
f6c34820 3657 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3658 u32 apply_time;
f028905c 3659 int ret;
bd3398e2
AO		 3660
3661 mutex_lock(&mvm->mutex);
664322fa 3662
81d62d5a
JB		 3663 mvmvif->csa_failed = false;
3664
6b20d774 3665 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3666 chsw->chandef.center_freq1);
6b20d774 3667
21023b1e 3668 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3669
6b20d774
LC		 3670 switch (vif->type) {
3671 case NL80211_IFTYPE_AP:
3672 csa_vif =
3673 rcu_dereference_protected(mvm->csa_vif,
3674 lockdep_is_held(&mvm->mutex));
3675 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3676 "Another CSA is already in progress")) {
3677 ret = -EBUSY;
3678 goto out_unlock;
3679 }
3680
3681 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3682
7ef0aab6
AO		 3683 if (WARN_ONCE(mvmvif->csa_countdown,
3684 "Previous CSA countdown didn't complete")) {
3685 ret = -EBUSY;
3686 goto out_unlock;
3687 }
3688
6b20d774 3689 break;
dc88b4ba 3690 case NL80211_IFTYPE_STATION:
4500e133
LC		 3691 /* Schedule the time event to a bit before beacon 1,
3692 * to make sure we're in the new channel when the
3693 * GO/AP arrives.
3694 */
3695 apply_time = chsw->device_timestamp +
3696 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3697 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3698
3699 if (chsw->block_tx)
3700 iwl_mvm_csa_client_absent(mvm, vif);
3701
4500e133 3702 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3703 apply_time);
c6e0a3e0
LC		 3704 if (mvmvif->bf_data.bf_enabled) {
3705 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3706 if (ret)
3707 goto out_unlock;
3708 }
3709
dc88b4ba 3710 break;
6b20d774
LC		 3711 default:
3712 break;
3713 }
bd3398e2 3714
f6c34820
LC		 3715 mvmvif->ps_disabled = true;
3716
3717 ret = iwl_mvm_power_update_ps(mvm);
3718 if (ret)
3719 goto out_unlock;
f028905c 3720
e198f5e7
AN		 3721 /* we won't be on this channel any longer */
3722 iwl_mvm_teardown_tdls_peers(mvm);
3723
bd3398e2
AO		 3724out_unlock:
3725 mutex_unlock(&mvm->mutex);
f028905c
LC		 3726
3727 return ret;
bd3398e2
AO		 3728}
3729
f6c34820
LC		 3730static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3731 struct ieee80211_vif *vif)
3732{
3733 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3734 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3735 int ret;
3736
3737 mutex_lock(&mvm->mutex);
3738
81d62d5a
JB		 3739 if (mvmvif->csa_failed) {
3740 mvmvif->csa_failed = false;
3741 ret = -EIO;
3742 goto out_unlock;
3743 }
3744
a57c688d
LC		 3745 if (vif->type == NL80211_IFTYPE_STATION) {
3746 struct iwl_mvm_sta *mvmsta;
3747
3748 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3749 mvmvif->ap_sta_id);
3750
3751 if (WARN_ON(!mvmsta)) {
3752 ret = -EIO;
3753 goto out_unlock;
3754 }
3755
3756 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3757
3758 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3759
3760 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3761 if (ret)
3762 goto out_unlock;
686e7fe1
LC		 3763
3764 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3765 }
3766
f6c34820
LC		 3767 mvmvif->ps_disabled = false;
3768
3769 ret = iwl_mvm_power_update_ps(mvm);
3770
a57c688d 3771out_unlock:
f6c34820
LC		 3772 mutex_unlock(&mvm->mutex);
3773
3774 return ret;
3775}
3776
c5b0e7c0
EG		 3777static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3778 struct ieee80211_vif *vif, u32 queues, bool drop)
3779{
3780 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3781 struct iwl_mvm_vif *mvmvif;
3782 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3783 struct ieee80211_sta *sta;
3784 int i;
3785 u32 msk = 0;
c5b0e7c0
EG		 3786
3787 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3788 return;
3789
3790 mutex_lock(&mvm->mutex);
3791 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3792
a0f6bf2a
AN		 3793 /* flush the AP-station and all TDLS peers */
3794 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3795 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3796 lockdep_is_held(&mvm->mutex));
3797 if (IS_ERR_OR_NULL(sta))
3798 continue;
3799
3800 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3801 if (mvmsta->vif != vif)
3802 continue;
3803
3804 /* make sure only TDLS peers or the AP are flushed */
3805 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3806
3807 msk |= mvmsta->tfd_queue_msk;
480acbce 3808 }
c5b0e7c0 3809
6d440b25
EG		 3810 if (drop) {
3811 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3812 IWL_ERR(mvm, "flush request fail\n");
3813 mutex_unlock(&mvm->mutex);
3814 } else {
3815 mutex_unlock(&mvm->mutex);
4e6c48e0 3816
6d440b25
EG		 3817 /* this can take a while, and we may need/want other operations
3818 * to succeed while doing this, so do it without the mutex held
3819 */
3820 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3821 }
c5b0e7c0
EG		 3822}
3823
91a8bcde
JB		 3824static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3825 struct survey_info *survey)
3826{
3827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3828 int ret;
3829
3830 memset(survey, 0, sizeof(*survey));
3831
3832 /* only support global statistics right now */
3833 if (idx != 0)
3834 return -ENOENT;
3835
3836 if (!(mvm->fw->ucode_capa.capa[0] &
3837 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3838 return -ENOENT;
3839
3840 mutex_lock(&mvm->mutex);
3841
3842 if (mvm->ucode_loaded) {
33cef925 3843 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3844 if (ret)
3845 goto out;
3846 }
3847
3848 survey->filled = SURVEY_INFO_TIME |
3849 SURVEY_INFO_TIME_RX |
3850 SURVEY_INFO_TIME_TX |
3851 SURVEY_INFO_TIME_SCAN;
3852 survey->time = mvm->accu_radio_stats.on_time_rf +
3853 mvm->radio_stats.on_time_rf;
3854 do_div(survey->time, USEC_PER_MSEC);
3855
3856 survey->time_rx = mvm->accu_radio_stats.rx_time +
3857 mvm->radio_stats.rx_time;
3858 do_div(survey->time_rx, USEC_PER_MSEC);
3859
3860 survey->time_tx = mvm->accu_radio_stats.tx_time +
3861 mvm->radio_stats.tx_time;
3862 do_div(survey->time_tx, USEC_PER_MSEC);
3863
3864 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3865 mvm->radio_stats.on_time_scan;
3866 do_div(survey->time_scan, USEC_PER_MSEC);
3867
10a7c028 3868 ret = 0;
91a8bcde
JB		 3869 out:
3870 mutex_unlock(&mvm->mutex);
3871 return ret;
3872}
3873
33cef925
JB		 3874static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3875 struct ieee80211_vif *vif,
3876 struct ieee80211_sta *sta,
3877 struct station_info *sinfo)
3878{
3879 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3880 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3881 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3882
3883 if (!(mvm->fw->ucode_capa.capa[0] &
3884 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3885 return;
3886
3887 /* if beacon filtering isn't on mac80211 does it anyway */
3888 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3889 return;
3890
3891 if (!vif->bss_conf.assoc)
3892 return;
3893
3894 mutex_lock(&mvm->mutex);
3895
3896 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3897 goto unlock;
3898
3899 if (iwl_mvm_request_statistics(mvm, false))
3900 goto unlock;
3901
3902 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3903 mvmvif->beacon_stats.accu_num_beacons;
3904 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3905 if (mvmvif->beacon_stats.avg_signal) {
3906 /* firmware only reports a value after RXing a few beacons */
3907 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3908 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3909 }
3910 unlock:
3911 mutex_unlock(&mvm->mutex);
3912}
3913
d42f5350
EG		 3914static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
3915 struct ieee80211_vif *vif,
3916 const struct ieee80211_event *event)
3917{
5d4f929e 3918#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3919 do { \
3920 if ((_cnt) && --(_cnt)) \
3921 break; \
5d4f929e 3922 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3923 } while (0)
3924
3925 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3926 struct iwl_fw_dbg_trigger_tlv *trig;
3927 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3928
3929 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3930 return;
3931
d42f5350
EG		 3932 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3933 trig_mlme = (void *)trig->data;
3934 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3935 return;
3936
d42f5350
EG		 3937 if (event->u.mlme.data == ASSOC_EVENT) {
3938 if (event->u.mlme.status == MLME_DENIED)
3939 CHECK_MLME_TRIGGER(mvm, trig, buf,
3940 trig_mlme->stop_assoc_denied,
3941 "DENIED ASSOC: reason %d",
3942 event->u.mlme.reason);
3943 else if (event->u.mlme.status == MLME_TIMEOUT)
3944 CHECK_MLME_TRIGGER(mvm, trig, buf,
3945 trig_mlme->stop_assoc_timeout,
3946 "ASSOC TIMEOUT");
3947 } else if (event->u.mlme.data == AUTH_EVENT) {
3948 if (event->u.mlme.status == MLME_DENIED)
3949 CHECK_MLME_TRIGGER(mvm, trig, buf,
3950 trig_mlme->stop_auth_denied,
3951 "DENIED AUTH: reason %d",
3952 event->u.mlme.reason);
3953 else if (event->u.mlme.status == MLME_TIMEOUT)
3954 CHECK_MLME_TRIGGER(mvm, trig, buf,
3955 trig_mlme->stop_auth_timeout,
3956 "AUTH TIMEOUT");
3957 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
3958 CHECK_MLME_TRIGGER(mvm, trig, buf,
3959 trig_mlme->stop_rx_deauth,
3960 "DEAUTH RX %d", event->u.mlme.reason);
3961 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
3962 CHECK_MLME_TRIGGER(mvm, trig, buf,
3963 trig_mlme->stop_tx_deauth,
3964 "DEAUTH TX %d", event->u.mlme.reason);
3965 }
3966#undef CHECK_MLME_TRIGGER
3967}
3968
e5209263 3969const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3970 .tx = iwl_mvm_mac_tx,
3971 .ampdu_action = iwl_mvm_mac_ampdu_action,
3972 .start = iwl_mvm_mac_start,
cf2c92d8 3973 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3974 .stop = iwl_mvm_mac_stop,
3975 .add_interface = iwl_mvm_mac_add_interface,
3976 .remove_interface = iwl_mvm_mac_remove_interface,
3977 .config = iwl_mvm_mac_config,
e59647ea 3978 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3979 .configure_filter = iwl_mvm_configure_filter,
3980 .bss_info_changed = iwl_mvm_bss_info_changed,
3981 .hw_scan = iwl_mvm_mac_hw_scan,
3982 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3983 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3984 .sta_state = iwl_mvm_mac_sta_state,
3985 .sta_notify = iwl_mvm_mac_sta_notify,
3986 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3987 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3988 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3989 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3990 .conf_tx = iwl_mvm_mac_conf_tx,
3991 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3992 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3993 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3994 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3995 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3996 .set_key = iwl_mvm_mac_set_key,
3997 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3998 .remain_on_channel = iwl_mvm_roc,
3999 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4000 .add_chanctx = iwl_mvm_add_chanctx,
4001 .remove_chanctx = iwl_mvm_remove_chanctx,
4002 .change_chanctx = iwl_mvm_change_chanctx,
4003 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4004 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4005 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4006
5023d966
JB		 4007 .start_ap = iwl_mvm_start_ap_ibss,
4008 .stop_ap = iwl_mvm_stop_ap_ibss,
4009 .join_ibss = iwl_mvm_start_ap_ibss,
4010 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4011
4012 .set_tim = iwl_mvm_set_tim,
4013
622e3f9b 4014 .channel_switch = iwl_mvm_channel_switch,
f028905c 4015 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4016 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4017
1d3c3f63
AN		 4018 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4019 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4020 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4021
d42f5350
EG		 4022 .event_callback = iwl_mvm_mac_event_callback,
4023
507cadf2
DS		 4024 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4025
8ca151b5
JB		 4026#ifdef CONFIG_PM_SLEEP
4027 /* look at d3.c */
4028 .suspend = iwl_mvm_suspend,
4029 .resume = iwl_mvm_resume,
4030 .set_wakeup = iwl_mvm_set_wakeup,
4031 .set_rekey_data = iwl_mvm_set_rekey_data,
4032#if IS_ENABLED(CONFIG_IPV6)
4033 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4034#endif
4035 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4036#endif
91a8bcde 4037 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4038 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4039};
Linux 6.x block layer and io_uring tree(s)