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iwlwifi: pcie: provide a way to stop configuration if it is forbidden
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
8ca151b5 83#include "iwl-phy-db.h"
507cadf2 84#include "testmode.h"
655e6d6d
EG		 85#include "iwl-fw-error-dump.h"
86#include "iwl-prph.h"
363039be 87#include "iwl-csr.h"
88931cc9 88#include "iwl-nvm-parse.h"
8ca151b5
JB		 89
90static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
91 {
92 .max = 1,
8eb38710 93 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 94 },
3c15a0fb
JB		 95 {
96 .max = 1,
8eb38710
IP		 97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 99 BIT(NL80211_IFTYPE_P2P_GO),
100 },
101 {
102 .max = 1,
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
104 },
8ca151b5
JB		 105};
106
107static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
108 {
2624a5ca 109 .num_different_channels = 2,
8ca151b5
JB		 110 .max_interfaces = 3,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
113 },
114};
115
f0c2646a
JB		 116#ifdef CONFIG_PM_SLEEP
117static const struct nl80211_wowlan_tcp_data_token_feature
118iwl_mvm_wowlan_tcp_token_feature = {
119 .min_len = 0,
120 .max_len = 255,
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
122};
123
124static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
135 .seq = true,
136};
137#endif
138
77736923 139#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 140/*
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
147 * be skipped.
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
150 */
151enum {
152 BC_FILTER_MAGIC_NONE = 0,
153 BC_FILTER_MAGIC_IP,
154 BC_FILTER_MAGIC_MAC,
155};
156
77736923
EP		 157static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
158 {
159 /* arp */
160 .discard = 0,
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
162 .attrs = {
163 {
164 /* frame type - arp, hw type - ethernet */
165 .offset_type =
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
170 },
2ee8f021
EP		 171 {
172 /* arp dest ip */
173 .offset_type =
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
178 ETH_ALEN,
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
182 },
183 },
184 },
185 {
186 /* dhcp offer bcast */
187 .discard = 0,
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
189 .attrs = {
190 {
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
196 },
197 {
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
200 .offset = 38,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
204 },
77736923
EP		 205 },
206 },
207 /* last filter must be empty */
208 {},
209};
210#endif
211
7498cf4c
EP		 212void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
213{
7bb426ea 214 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 215 return;
216
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 221 iwl_trans_ref(mvm->trans);
222}
223
224void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
225{
7bb426ea 226 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 227 return;
228
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 233 iwl_trans_unref(mvm->trans);
234}
235
576eeee9
EP		 236static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
7498cf4c 238{
576eeee9 239 int i, j;
7498cf4c 240
7bb426ea 241 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 242 return;
243
576eeee9
EP		 244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 247 continue;
248
576eeee9
EP		 249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
250 i, mvm->refs[i]);
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
253 mvm->refs[i] = 0;
7498cf4c 254 }
576eeee9 255 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 256}
257
f4cf8680
EP		 258bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
259{
260 int i;
261 bool taken = false;
262
263 if (!iwl_mvm_is_d0i3_supported(mvm))
264 return true;
265
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
268 if (mvm->refs[i]) {
269 taken = true;
270 break;
271 }
272 }
273 spin_unlock_bh(&mvm->refs_lock);
274
275 return taken;
276}
277
576eeee9 278int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 279{
280 iwl_mvm_ref(mvm, ref_type);
281
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
284 HZ)) {
285 WARN_ON_ONCE(1);
286 iwl_mvm_unref(mvm, ref_type);
287 return -EIO;
288 }
289
290 return 0;
291}
292
fe0f2de3
IP		 293static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
294{
295 int i;
296
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
301 }
302}
303
88931cc9 304struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 305 const char *alpha2,
47c8b154
JD		 306 enum iwl_mcc_source src_id,
307 bool *changed)
88931cc9
AN		 308{
309 struct ieee80211_regdomain *regd = NULL;
310 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
312 struct iwl_mcc_update_resp *resp;
313
314 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
315
8ba2d7a1 316 lockdep_assert_held(&mvm->mutex);
88931cc9 317
8ba2d7a1 318 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 319 if (IS_ERR_OR_NULL(resp)) {
320 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 321 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 322 goto out;
88931cc9
AN		 323 }
324
47c8b154
JD		 325 if (changed)
326 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
327
162ee3c9 328 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 329 __le32_to_cpu(resp->n_channels),
330 resp->channels,
331 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 332 /* Store the return source id */
333 src_id = resp->source_id;
88931cc9
AN		 334 kfree(resp);
335 if (IS_ERR_OR_NULL(regd)) {
336 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 337 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 338 goto out;
88931cc9
AN		 339 }
340
8ba2d7a1
EH		 341 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 343 mvm->lar_regdom_set = true;
8ba2d7a1 344 mvm->mcc_src = src_id;
88931cc9 345
8ba2d7a1 346out:
88931cc9
AN		 347 return regd;
348}
349
47c8b154
JD		 350void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
351{
352 bool changed;
353 struct ieee80211_regdomain *regd;
354
355 if (!iwl_mvm_is_lar_supported(mvm))
356 return;
357
358 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
359 if (!IS_ERR_OR_NULL(regd)) {
360 /* only update the regulatory core if changed */
361 if (changed)
362 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
363
364 kfree(regd);
365 }
366}
367
368struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
369 bool *changed)
8ba2d7a1
EH		 370{
371 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm) ?
373 MCC_SOURCE_GET_CURRENT :
47c8b154 374 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 375}
376
377int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
378{
379 enum iwl_mcc_source used_src;
380 struct ieee80211_regdomain *regd;
b6e160ab
AN		 381 int ret;
382 bool changed;
8ba2d7a1
EH		 383 const struct ieee80211_regdomain *r =
384 rtnl_dereference(mvm->hw->wiphy->regd);
385
386 if (!r)
b6e160ab 387 return -ENOENT;
8ba2d7a1
EH		 388
389 /* save the last source in case we overwrite it below */
390 used_src = mvm->mcc_src;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
392 /* Notify the firmware we support wifi location updates */
47c8b154 393 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 394 if (!IS_ERR_OR_NULL(regd))
395 kfree(regd);
396 }
397
398 /* Now set our last stored MCC and source */
b6e160ab
AN		 399 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
400 &changed);
8ba2d7a1
EH		 401 if (IS_ERR_OR_NULL(regd))
402 return -EIO;
403
b6e160ab
AN		 404 /* update cfg80211 if the regdomain was changed */
405 if (changed)
406 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
407 else
408 ret = 0;
8ba2d7a1 409
b6e160ab
AN		 410 kfree(regd);
411 return ret;
8ba2d7a1
EH		 412}
413
8ca151b5
JB		 414int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
415{
416 struct ieee80211_hw *hw = mvm->hw;
831e85f3 417 int num_mac, ret, i;
5f4c02e2
JB		 418 static const u32 mvm_ciphers[] = {
419 WLAN_CIPHER_SUITE_WEP40,
420 WLAN_CIPHER_SUITE_WEP104,
421 WLAN_CIPHER_SUITE_TKIP,
422 WLAN_CIPHER_SUITE_CCMP,
423 };
8ca151b5
JB		 424
425 /* Tell mac80211 our characteristics */
30686bf7
JB		 426 ieee80211_hw_set(hw, SIGNAL_DBM);
427 ieee80211_hw_set(hw, SPECTRUM_MGMT);
428 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
429 ieee80211_hw_set(hw, QUEUE_CONTROL);
430 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
431 ieee80211_hw_set(hw, SUPPORTS_PS);
432 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
433 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
434 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
435 ieee80211_hw_set(hw, CONNECTION_MONITOR);
436 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
437 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
438 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
8ca151b5 439
19e737c9 440 hw->queues = mvm->first_agg_queue;
398e8c6c 441 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 442 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
443 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 444 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
445 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 446 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 447 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
448 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 449
5f4c02e2
JB		 450 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
451 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
452 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
453 hw->wiphy->cipher_suites = mvm->ciphers;
454
8ca151b5
JB		 455 /*
456 * Enable 11w if advertised by firmware and software crypto
457 * is not enabled (as the firmware will interpret some mgmt
458 * packets, so enabling it with software crypto isn't safe)
459 */
460 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
5f4c02e2 461 !iwlwifi_mod_params.sw_crypto) {
30686bf7 462 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 463 mvm->ciphers[hw->wiphy->n_cipher_suites] =
464 WLAN_CIPHER_SUITE_AES_CMAC;
465 hw->wiphy->n_cipher_suites++;
466 }
467
468 /* currently FW API supports only one optional cipher scheme */
469 if (mvm->fw->cs[0].cipher) {
470 mvm->hw->n_cipher_schemes = 1;
471 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
472 mvm->ciphers[hw->wiphy->n_cipher_suites] =
473 mvm->fw->cs[0].cipher;
474 hw->wiphy->n_cipher_suites++;
475 }
8ca151b5 476
30686bf7 477 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 478 hw->wiphy->features |=
479 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 480 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
481 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 482
8ca151b5
JB		 483 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
484 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 485 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 486
487 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 488 BIT(NL80211_IFTYPE_P2P_CLIENT) |
489 BIT(NL80211_IFTYPE_AP) |
490 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 491 BIT(NL80211_IFTYPE_P2P_DEVICE) |
492 BIT(NL80211_IFTYPE_ADHOC);
5023d966 493
a2f73b6c 494 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 495 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
496 if (iwl_mvm_is_lar_supported(mvm))
497 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
498 else
499 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
500 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 501
3e56eadf
JB		 502 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
503 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
504
94bbed72 505 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 506
8ca151b5
JB		 507 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
508 hw->wiphy->n_iface_combinations =
509 ARRAY_SIZE(iwl_mvm_iface_combinations);
510
c451e6d4 511 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 512 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 513 /* we can compensate an offset of up to 3 channels = 15 MHz */
514 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 515
516 /* Extract MAC address */
517 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
518 hw->wiphy->addresses = mvm->addresses;
519 hw->wiphy->n_addresses = 1;
831e85f3
IP		 520
521 /* Extract additional MAC addresses if available */
522 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
523 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
524
525 for (i = 1; i < num_mac; i++) {
526 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 527 ETH_ALEN);
831e85f3 528 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 529 hw->wiphy->n_addresses++;
530 }
531
fe0f2de3
IP		 532 iwl_mvm_reset_phy_ctxts(mvm);
533
999d2568 534 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 535
8ca151b5
JB		 536 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
537
c7d42480 538 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 539 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
540 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
541
859d914c 542 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 543 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
544 else
545 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
546
8ca151b5
JB		 547 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
548 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
549 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 550 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 551 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
552 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
553
859d914c
JB		 554 if (fw_has_capa(&mvm->fw->ucode_capa,
555 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
556 fw_has_api(&mvm->fw->ucode_capa,
557 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 558 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
559 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
560 }
561
8ca151b5
JB		 562 hw->wiphy->hw_version = mvm->trans->hw_id;
563
ade50652 564 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 565 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
566 else
567 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
568
9954b37c
EG		 569 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
570 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
571 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
572 /* we create the 802.11 header and zero length SSID IE. */
573 hw->wiphy->max_sched_scan_ie_len =
574 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 575
8ca151b5 576 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 577 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 578 NL80211_FEATURE_P2P_GO_OPPPS |
579 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 580 NL80211_FEATURE_STATIC_SMPS |
581 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 582
859d914c
JB		 583 if (fw_has_capa(&mvm->fw->ucode_capa,
584 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 585 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 586 if (fw_has_capa(&mvm->fw->ucode_capa,
587 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 588 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 589
859d914c
JB		 590 if (fw_has_capa(&mvm->fw->ucode_capa,
591 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 592 hw->wiphy->features |=
593 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
594
859d914c
JB		 595 if (fw_has_capa(&mvm->fw->ucode_capa,
596 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 597 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
598
8ca151b5
JB		 599 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
600
601#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 602 if (iwl_mvm_is_d0i3_supported(mvm) &&
603 device_can_wakeup(mvm->trans->dev)) {
604 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
605 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 606 }
607
608 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 609 mvm->trans->ops->d3_suspend &&
610 mvm->trans->ops->d3_resume &&
611 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 612 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
613 WIPHY_WOWLAN_DISCONNECT |
614 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
615 WIPHY_WOWLAN_RFKILL_RELEASE |
616 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 617 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 618 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
619 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
620 WIPHY_WOWLAN_4WAY_HANDSHAKE;
621
622 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
623 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
624 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 625 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 626 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
627 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 628 }
629#endif
630
77736923
EP		 631#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
632 /* assign default bcast filtering configuration */
633 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
634#endif
635
8ca151b5
JB		 636 ret = iwl_mvm_leds_init(mvm);
637 if (ret)
638 return ret;
639
859d914c
JB		 640 if (fw_has_capa(&mvm->fw->ucode_capa,
641 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 642 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
643 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
644 }
645
859d914c
JB		 646 if (fw_has_capa(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 648 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
649 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
650 }
651
b7327d89
EG		 652 ret = ieee80211_register_hw(mvm->hw);
653 if (ret)
654 iwl_mvm_leds_exit(mvm);
655
656 return ret;
8ca151b5
JB		 657}
658
b2492501
AN		 659static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
660 struct ieee80211_sta *sta,
661 struct sk_buff *skb)
662{
663 struct iwl_mvm_sta *mvmsta;
664 bool defer = false;
665
666 /*
667 * double check the IN_D0I3 flag both before and after
668 * taking the spinlock, in order to prevent taking
669 * the spinlock when not needed.
670 */
671 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
672 return false;
673
674 spin_lock(&mvm->d0i3_tx_lock);
675 /*
676 * testing the flag again ensures the skb dequeue
677 * loop (on d0i3 exit) hasn't run yet.
678 */
679 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
680 goto out;
681
682 mvmsta = iwl_mvm_sta_from_mac80211(sta);
683 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
684 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
685 goto out;
686
687 __skb_queue_tail(&mvm->d0i3_tx, skb);
688 ieee80211_stop_queues(mvm->hw);
689
690 /* trigger wakeup */
691 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
692 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
693
694 defer = true;
695out:
696 spin_unlock(&mvm->d0i3_tx_lock);
697 return defer;
698}
699
8ca151b5
JB		 700static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
701 struct ieee80211_tx_control *control,
702 struct sk_buff *skb)
703{
704 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 705 struct ieee80211_sta *sta = control->sta;
706 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
707 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 708
9ee718aa
EL		 709 if (iwl_mvm_is_radio_killed(mvm)) {
710 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 711 goto drop;
712 }
713
398e8c6c 714 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 715 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
716 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 717 goto drop;
718
3e56eadf
JB		 719 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
720 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
721 ieee80211_is_mgmt(hdr->frame_control) &&
722 !ieee80211_is_deauth(hdr->frame_control) &&
723 !ieee80211_is_disassoc(hdr->frame_control) &&
724 !ieee80211_is_action(hdr->frame_control)))
725 sta = NULL;
726
727 if (sta) {
b2492501
AN		 728 if (iwl_mvm_defer_tx(mvm, sta, skb))
729 return;
3e56eadf 730 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 731 goto drop;
732 return;
733 }
734
735 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
736 goto drop;
737 return;
738 drop:
739 ieee80211_free_txskb(hw, skb);
740}
741
205e2210
EG		 742static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
743{
744 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
745 return false;
746 return true;
747}
748
749static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
750{
751 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
752 return false;
753 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
754 return true;
755
756 /* enabled by default */
757 return true;
758}
759
4203263d
EG		 760#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
761 do { \
762 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
763 break; \
764 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
765 } while (0)
766
767static void
768iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
769 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
770 enum ieee80211_ampdu_mlme_action action)
771{
772 struct iwl_fw_dbg_trigger_tlv *trig;
773 struct iwl_fw_dbg_trigger_ba *ba_trig;
774
775 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
776 return;
777
778 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
779 ba_trig = (void *)trig->data;
780
781 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
782 return;
783
784 switch (action) {
785 case IEEE80211_AMPDU_TX_OPERATIONAL: {
786 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
787 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
788
789 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
790 "TX AGG START: MAC %pM tid %d ssn %d\n",
791 sta->addr, tid, tid_data->ssn);
792 break;
793 }
794 case IEEE80211_AMPDU_TX_STOP_CONT:
795 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
796 "TX AGG STOP: MAC %pM tid %d\n",
797 sta->addr, tid);
798 break;
799 case IEEE80211_AMPDU_RX_START:
800 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
801 "RX AGG START: MAC %pM tid %d ssn %d\n",
802 sta->addr, tid, rx_ba_ssn);
803 break;
804 case IEEE80211_AMPDU_RX_STOP:
805 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
806 "RX AGG STOP: MAC %pM tid %d\n",
807 sta->addr, tid);
808 break;
809 default:
810 break;
811 }
812}
813
8ca151b5
JB		 814static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
815 struct ieee80211_vif *vif,
816 enum ieee80211_ampdu_mlme_action action,
817 struct ieee80211_sta *sta, u16 tid,
818 u16 *ssn, u8 buf_size)
819{
820 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
821 int ret;
b2492501 822 bool tx_agg_ref = false;
8ca151b5
JB		 823
824 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
825 sta->addr, tid, action);
826
827 if (!(mvm->nvm_data->sku_cap_11n_enable))
828 return -EACCES;
829
b2492501 830 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 831 switch (action) {
832 case IEEE80211_AMPDU_TX_START:
833 case IEEE80211_AMPDU_TX_STOP_CONT:
834 case IEEE80211_AMPDU_TX_STOP_FLUSH:
835 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
836 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 837 /*
9256c205
EP		 838 * for tx start, wait synchronously until D0i3 exit to
839 * get the correct sequence number for the tid.
840 * additionally, some other ampdu actions use direct
841 * target access, which is not handled automatically
842 * by the trans layer (unlike commands), so wait for
843 * d0i3 exit in these cases as well.
b2492501 844 */
d40fc489
GG		 845 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
846 if (ret)
847 return ret;
848
849 tx_agg_ref = true;
9256c205
EP		 850 break;
851 default:
852 break;
b2492501
AN		 853 }
854
8ca151b5
JB		 855 mutex_lock(&mvm->mutex);
856
857 switch (action) {
858 case IEEE80211_AMPDU_RX_START:
205e2210 859 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 860 ret = -EINVAL;
861 break;
862 }
863 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
864 break;
865 case IEEE80211_AMPDU_RX_STOP:
866 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
867 break;
868 case IEEE80211_AMPDU_TX_START:
205e2210 869 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 870 ret = -EINVAL;
871 break;
872 }
8ca151b5
JB		 873 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
874 break;
875 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 876 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
877 break;
8ca151b5
JB		 878 case IEEE80211_AMPDU_TX_STOP_FLUSH:
879 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 880 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 881 break;
882 case IEEE80211_AMPDU_TX_OPERATIONAL:
883 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
884 break;
885 default:
886 WARN_ON_ONCE(1);
887 ret = -EINVAL;
888 break;
889 }
4203263d
EG		 890
891 if (!ret) {
892 u16 rx_ba_ssn = 0;
893
894 if (action == IEEE80211_AMPDU_RX_START)
895 rx_ba_ssn = *ssn;
896
897 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
898 rx_ba_ssn, action);
899 }
8ca151b5
JB		 900 mutex_unlock(&mvm->mutex);
901
b2492501
AN		 902 /*
903 * If the tid is marked as started, we won't use it for offloaded
904 * traffic on the next D0i3 entry. It's safe to unref.
905 */
906 if (tx_agg_ref)
907 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
908
8ca151b5
JB		 909 return ret;
910}
911
912static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
913 struct ieee80211_vif *vif)
914{
915 struct iwl_mvm *mvm = data;
916 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
917
918 mvmvif->uploaded = false;
919 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
920
8ca151b5
JB		 921 spin_lock_bh(&mvm->time_event_lock);
922 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
923 spin_unlock_bh(&mvm->time_event_lock);
924
fe0f2de3 925 mvmvif->phy_ctxt = NULL;
8a275bad 926 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 927}
928
aadede6e
JB		 929static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
930 const void *data, size_t datalen)
931{
932 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
933 ssize_t bytes_read;
934 ssize_t bytes_read_trans;
935
936 if (offset < dump_ptrs->op_mode_len) {
937 bytes_read = min_t(ssize_t, count,
938 dump_ptrs->op_mode_len - offset);
939 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
940 bytes_read);
941 offset += bytes_read;
942 count -= bytes_read;
943
944 if (count == 0)
945 return bytes_read;
946 } else {
947 bytes_read = 0;
948 }
949
950 if (!dump_ptrs->trans_ptr)
951 return bytes_read;
952
953 offset -= dump_ptrs->op_mode_len;
954 bytes_read_trans = min_t(ssize_t, count,
955 dump_ptrs->trans_ptr->len - offset);
956 memcpy(buffer + bytes_read,
957 (u8 *)dump_ptrs->trans_ptr->data + offset,
958 bytes_read_trans);
959
960 return bytes_read + bytes_read_trans;
961}
962
963static void iwl_mvm_free_coredump(const void *data)
964{
965 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
966
967 vfree(fw_error_dump->op_mode_ptr);
968 vfree(fw_error_dump->trans_ptr);
969 kfree(fw_error_dump);
970}
971
04fd2c28
LK		 972static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
973 struct iwl_fw_error_dump_data **dump_data)
974{
975 struct iwl_fw_error_dump_fifo *fifo_hdr;
976 u32 *fifo_data;
977 u32 fifo_len;
978 unsigned long flags;
979 int i, j;
980
981 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
982 return;
983
984 /* Pull RXF data from all RXFs */
985 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
986 /*
987 * Keep aside the additional offset that might be needed for
988 * next RXF
989 */
990 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
991
992 fifo_hdr = (void *)(*dump_data)->data;
993 fifo_data = (void *)fifo_hdr->data;
994 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
995
996 /* No need to try to read the data if the length is 0 */
997 if (fifo_len == 0)
998 continue;
999
1000 /* Add a TLV for the RXF */
1001 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
1002 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1003
1004 fifo_hdr->fifo_num = cpu_to_le32(i);
1005 fifo_hdr->available_bytes =
1006 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1007 RXF_RD_D_SPACE +
1008 offset_diff));
1009 fifo_hdr->wr_ptr =
1010 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1011 RXF_RD_WR_PTR +
1012 offset_diff));
1013 fifo_hdr->rd_ptr =
1014 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1015 RXF_RD_RD_PTR +
1016 offset_diff));
1017 fifo_hdr->fence_ptr =
1018 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1019 RXF_RD_FENCE_PTR +
1020 offset_diff));
1021 fifo_hdr->fence_mode =
1022 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1023 RXF_SET_FENCE_MODE +
1024 offset_diff));
1025
1026 /* Lock fence */
1027 iwl_trans_write_prph(mvm->trans,
1028 RXF_SET_FENCE_MODE + offset_diff, 0x1);
1029 /* Set fence pointer to the same place like WR pointer */
1030 iwl_trans_write_prph(mvm->trans,
1031 RXF_LD_WR2FENCE + offset_diff, 0x1);
1032 /* Set fence offset */
1033 iwl_trans_write_prph(mvm->trans,
1034 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
1035 0x0);
1036
1037 /* Read FIFO */
1038 fifo_len /= sizeof(u32); /* Size in DWORDS */
1039 for (j = 0; j < fifo_len; j++)
1040 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1041 RXF_FIFO_RD_FENCE_INC +
1042 offset_diff);
1043 *dump_data = iwl_fw_error_next_data(*dump_data);
1044 }
1045
1046 /* Pull TXF data from all TXFs */
1047 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
1048 /* Mark the number of TXF we're pulling now */
1049 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
1050
1051 fifo_hdr = (void *)(*dump_data)->data;
1052 fifo_data = (void *)fifo_hdr->data;
1053 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
1054
1055 /* No need to try to read the data if the length is 0 */
1056 if (fifo_len == 0)
1057 continue;
1058
1059 /* Add a TLV for the FIFO */
1060 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
1061 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1062
1063 fifo_hdr->fifo_num = cpu_to_le32(i);
1064 fifo_hdr->available_bytes =
1065 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1066 TXF_FIFO_ITEM_CNT));
1067 fifo_hdr->wr_ptr =
1068 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1069 TXF_WR_PTR));
1070 fifo_hdr->rd_ptr =
1071 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1072 TXF_RD_PTR));
1073 fifo_hdr->fence_ptr =
1074 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1075 TXF_FENCE_PTR));
1076 fifo_hdr->fence_mode =
1077 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1078 TXF_LOCK_FENCE));
1079
1080 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1081 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
1082 TXF_WR_PTR);
1083
1084 /* Dummy-read to advance the read pointer to the head */
1085 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1086
1087 /* Read FIFO */
1088 fifo_len /= sizeof(u32); /* Size in DWORDS */
1089 for (j = 0; j < fifo_len; j++)
1090 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1091 TXF_READ_MODIFY_DATA);
1092 *dump_data = iwl_fw_error_next_data(*dump_data);
1093 }
1094
1095 iwl_trans_release_nic_access(mvm->trans, &flags);
1096}
1097
b6eaa45a
EG		 1098void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1099{
1100 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1101 !mvm->fw_dump_desc)
1102 return;
1103
1104 kfree(mvm->fw_dump_desc);
1105 mvm->fw_dump_desc = NULL;
1106}
1107
e539761d
LK		 1108#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1109#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1110
4bfa47f3 1111void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1112{
1113 struct iwl_fw_error_dump_file *dump_file;
1114 struct iwl_fw_error_dump_data *dump_data;
1115 struct iwl_fw_error_dump_info *dump_info;
a549b296 1116 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1117 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1118 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1119 u32 sram_len, sram_ofs;
04fd2c28 1120 u32 file_len, fifo_data_len = 0;
addfaada 1121 u32 smem_len = mvm->cfg->smem_len;
86138324 1122 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1123
1124 lockdep_assert_held(&mvm->mutex);
1125
aadede6e 1126 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1127 if (!fw_error_dump)
1128 return;
1129
f53bf4c7
LK		 1130 /* SRAM - include stack CCM if driver knows the values for it */
1131 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1132 const struct fw_img *img;
1133
1134 img = &mvm->fw->img[mvm->cur_ucode];
1135 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1136 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1137 } else {
1138 sram_ofs = mvm->cfg->dccm_offset;
1139 sram_len = mvm->cfg->dccm_len;
1140 }
655e6d6d 1141
04fd2c28
LK		 1142 /* reading RXF/TXF sizes */
1143 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1144 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1145 int i;
1146
1147 fifo_data_len = 0;
1148
1149 /* Count RXF size */
1150 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1151 if (!mem_cfg->rxfifo_size[i])
1152 continue;
1153
1154 /* Add header info */
1155 fifo_data_len += mem_cfg->rxfifo_size[i] +
1156 sizeof(*dump_data) +
1157 sizeof(struct iwl_fw_error_dump_fifo);
1158 }
1159
1160 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1161 if (!mem_cfg->txfifo_size[i])
1162 continue;
655e6d6d 1163
04fd2c28
LK		 1164 /* Add header info */
1165 fifo_data_len += mem_cfg->txfifo_size[i] +
1166 sizeof(*dump_data) +
1167 sizeof(struct iwl_fw_error_dump_fifo);
1168 }
1169 }
655e6d6d
EG		 1170
1171 file_len = sizeof(*dump_file) +
04fd2c28 1172 sizeof(*dump_data) * 2 +
a549b296 1173 sram_len + sizeof(*dump_mem) +
04fd2c28 1174 fifo_data_len +
655e6d6d
EG		 1175 sizeof(*dump_info);
1176
e539761d
LK		 1177 /*
1178 * In 8000 HW family B-step include the ICCM (which resides separately)
1179 */
1180 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1181 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1182 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1183 IWL8260_ICCM_LEN;
1184
b6eaa45a
EG		 1185 if (mvm->fw_dump_desc)
1186 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1187 mvm->fw_dump_desc->len;
1188
addfaada
LK		 1189 /* Make room for the SMEM, if it exists */
1190 if (smem_len)
a549b296 1191 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1192
86138324
IY		 1193 /* Make room for the secondary SRAM, if it exists */
1194 if (sram2_len)
1195 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1196
5bfe6f53 1197 dump_file = vzalloc(file_len);
48eb7b34
EG		 1198 if (!dump_file) {
1199 kfree(fw_error_dump);
b6eaa45a 1200 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1201 return;
48eb7b34 1202 }
655e6d6d 1203
48eb7b34 1204 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1205
1206 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1207 dump_data = (void *)dump_file->data;
1208
1209 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1210 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1211 dump_info = (void *) dump_data->data;
1212 dump_info->device_family =
1213 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1214 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1215 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1216 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1217 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1218 sizeof(dump_info->fw_human_readable));
1219 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1220 sizeof(dump_info->dev_human_readable));
1221 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1222 sizeof(dump_info->bus_human_readable));
1223
1224 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1225 /* We only dump the FIFOs if the FW is in error state */
1226 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1227 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1228
b6eaa45a
EG		 1229 if (mvm->fw_dump_desc) {
1230 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1231 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1232 mvm->fw_dump_desc->len);
1233 dump_trig = (void *)dump_data->data;
1234 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1235 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1236
1237 /* now we can free this copy */
1238 iwl_mvm_free_fw_dump_desc(mvm);
1239 dump_data = iwl_fw_error_next_data(dump_data);
1240 }
1241
a549b296
EG		 1242 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1243 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1244 dump_mem = (void *)dump_data->data;
1245 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1246 dump_mem->offset = cpu_to_le32(sram_ofs);
1247 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1248 sram_len);
1249
addfaada
LK		 1250 if (smem_len) {
1251 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1252 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1253 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1254 dump_mem = (void *)dump_data->data;
1255 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1256 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1257 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1258 dump_mem->data, smem_len);
addfaada
LK		 1259 }
1260
86138324
IY		 1261 if (sram2_len) {
1262 dump_data = iwl_fw_error_next_data(dump_data);
1263 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1264 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1265 dump_mem = (void *)dump_data->data;
1266 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1267 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1268 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1269 dump_mem->data, sram2_len);
1270 }
1271
e539761d
LK		 1272 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1273 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1274 dump_data = iwl_fw_error_next_data(dump_data);
1275 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1276 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1277 sizeof(*dump_mem));
1278 dump_mem = (void *)dump_data->data;
1279 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1280 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1281 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1282 dump_mem->data, IWL8260_ICCM_LEN);
1283 }
1284
48eb7b34
EG		 1285 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1286 fw_error_dump->op_mode_len = file_len;
1287 if (fw_error_dump->trans_ptr)
1288 file_len += fw_error_dump->trans_ptr->len;
1289 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1290
aadede6e
JB		 1291 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1292 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1293
1294 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1295}
655e6d6d 1296
b6eaa45a
EG		 1297struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1298 .trig_desc = {
1299 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1300 },
1301};
1302
8ca151b5
JB		 1303static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1304{
58629d9d
JB		 1305 /* clear the D3 reconfig, we only need it to avoid dumping a
1306 * firmware coredump on reconfiguration, we shouldn't do that
1307 * on D3->D0 transition
1308 */
b6eaa45a
EG		 1309 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1310 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1311 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1312 }
1bd3cbc1 1313
744cb695
EP		 1314 /* cleanup all stale references (scan, roc), but keep the
1315 * ucode_down ref until reconfig is complete
1316 */
1317 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1318
8ca151b5 1319 iwl_trans_stop_device(mvm->trans);
8ca151b5 1320
9af91f46 1321 mvm->scan_status = 0;
b1873300 1322 mvm->ps_disabled = false;
31b8b343 1323 mvm->calibrating = false;
8ca151b5
JB		 1324
1325 /* just in case one was running */
1326 ieee80211_remain_on_channel_expired(mvm->hw);
1327
737719fe
AN		 1328 /*
1329 * cleanup all interfaces, even inactive ones, as some might have
1330 * gone down during the HW restart
1331 */
1332 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1333
fe0f2de3 1334 mvm->p2p_device_vif = NULL;
37577fe2 1335 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1336
1337 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1338 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1339 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1340 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1341 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1342 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1343 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1344 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1345 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1346
1347 ieee80211_wake_queues(mvm->hw);
1348
228670b2
EP		 1349 /* clear any stale d0i3 state */
1350 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1351
8ca151b5 1352 mvm->vif_count = 0;
113a0447 1353 mvm->rx_ba_sessions = 0;
d2709ad7 1354 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1355
1356 /* keep statistics ticking */
1357 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1358}
1359
a0a09243 1360int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1361{
8ca151b5
JB		 1362 int ret;
1363
a0a09243 1364 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1365
1366 /* Clean up some internal and mac80211 state on restart */
1367 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1368 iwl_mvm_restart_cleanup(mvm);
1369
1370 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1371
1372 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1373 /* Something went wrong - we need to finish some cleanup
1374 * that normally iwl_mvm_mac_restart_complete() below
1375 * would do.
1376 */
1377 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1378 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1379 }
1380
a0a09243
LC		 1381 return ret;
1382}
1383
1384static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1385{
1386 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1387 int ret;
1388
37948fcf
EP		 1389 /* Some hw restart cleanups must not hold the mutex */
1390 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1391 /*
1392 * Make sure we are out of d0i3. This is needed
1393 * to make sure the reference accounting is correct
1394 * (and there is no stale d0i3_exit_work).
1395 */
1396 wait_event_timeout(mvm->d0i3_exit_waitq,
1397 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1398 &mvm->status),
1399 HZ);
1400 }
1401
a0a09243
LC		 1402 mutex_lock(&mvm->mutex);
1403 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1404 mutex_unlock(&mvm->mutex);
1405
1406 return ret;
1407}
1408
cf2c92d8 1409static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1410{
8ca151b5
JB		 1411 int ret;
1412
1413 mutex_lock(&mvm->mutex);
1414
1415 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1416 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1417 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1418 if (ret)
1419 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1420 ret);
1421
7498cf4c
EP		 1422 /* allow transport/FW low power modes */
1423 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1424
cbd2ae2d
AN		 1425 /*
1426 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1427 * of packets the FW sent out, so we must reconnect.
1428 */
1429 iwl_mvm_teardown_tdls_peers(mvm);
1430
8ca151b5
JB		 1431 mutex_unlock(&mvm->mutex);
1432}
1433
088070a2
EP		 1434static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1435{
088070a2
EP		 1436 if (!iwl_mvm_is_d0i3_supported(mvm))
1437 return;
1438
6735943f
EP		 1439 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1440 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1441 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1442 &mvm->status),
1443 HZ))
1444 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1445}
1446
cf2c92d8
EP		 1447static void
1448iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1449 enum ieee80211_reconfig_type reconfig_type)
1450{
1451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1452
1453 switch (reconfig_type) {
1454 case IEEE80211_RECONFIG_TYPE_RESTART:
1455 iwl_mvm_restart_complete(mvm);
1456 break;
1457 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1458 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1459 break;
1460 }
1461}
1462
a0a09243 1463void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1464{
a0a09243 1465 lockdep_assert_held(&mvm->mutex);
7498cf4c 1466
91a8bcde
JB		 1467 /* firmware counters are obviously reset now, but we shouldn't
1468 * partially track so also clear the fw_reset_accu counters.
1469 */
1470 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1471
0a79a0c0
EP		 1472 /*
1473 * Disallow low power states when the FW is down by taking
1474 * the UCODE_DOWN ref. in case of ongoing hw restart the
1475 * ref is already taken, so don't take it again.
1476 */
1477 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1478 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1479
8ca151b5
JB		 1480 /* async_handlers_wk is now blocked */
1481
1482 /*
1483 * The work item could be running or queued if the
1484 * ROC time event stops just as we get here.
1485 */
c779273b 1486 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1487
1488 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1489
1490 iwl_mvm_async_handlers_purge(mvm);
1491 /* async_handlers_list is empty and will stay empty: HW is stopped */
1492
1493 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1494 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1495
0a79a0c0
EP		 1496 /*
1497 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1498 * won't be called in this case).
8b2b9fbf
AN		 1499 * But make sure to cleanup interfaces that have gone down before/during
1500 * HW restart was requested.
0a79a0c0 1501 */
8b2b9fbf
AN		 1502 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1503 ieee80211_iterate_interfaces(mvm->hw, 0,
1504 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1505
963221be
AB		 1506 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1507 * make sure there's nothing left there and warn if any is found.
1508 */
859d914c 1509 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1510 int i;
1511
507e4cda 1512 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1513 if (WARN_ONCE(mvm->scan_uid_status[i],
1514 "UMAC scan UID %d status was not cleaned\n",
1515 i))
1516 mvm->scan_uid_status[i] = 0;
963221be
AB		 1517 }
1518 }
1519
bc44886d 1520 mvm->ucode_loaded = false;
a0a09243 1521}
bc44886d 1522
a0a09243
LC		 1523static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1524{
1525 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1526
1527 flush_work(&mvm->d0i3_exit_work);
1528 flush_work(&mvm->async_handlers_wk);
d2709ad7 1529 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1530 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1531
1532 mutex_lock(&mvm->mutex);
1533 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1534 mutex_unlock(&mvm->mutex);
1535
1536 /*
1537 * The worker might have been waiting for the mutex, let it run and
1538 * discover that its list is now empty.
1539 */
1540 cancel_work_sync(&mvm->async_handlers_wk);
1541}
1542
fe0f2de3
IP		 1543static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1544{
1545 u16 i;
1546
1547 lockdep_assert_held(&mvm->mutex);
1548
1549 for (i = 0; i < NUM_PHY_CTX; i++)
1550 if (!mvm->phy_ctxts[i].ref)
1551 return &mvm->phy_ctxts[i];
1552
1553 IWL_ERR(mvm, "No available PHY context\n");
1554 return NULL;
1555}
1556
d44c3fe6
AA		 1557static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1558 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1559{
1560 /* FW is in charge of regulatory enforcement */
1561 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1562 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1563 .pwr_restriction = cpu_to_le16(tx_power),
1564 };
1565
a1022927 1566 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1567 sizeof(reduce_txpwr_cmd),
1568 &reduce_txpwr_cmd);
1569}
1570
d44c3fe6
AA		 1571static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1572 s16 tx_power)
1573{
1574 struct iwl_dev_tx_power_cmd cmd = {
1575 .set_mode = 0,
1576 .mac_context_id =
1577 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1578 .pwr_restriction = cpu_to_le16(8 * tx_power),
1579 };
1580
859d914c 1581 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_DEV))
d44c3fe6
AA		 1582 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1583
1584 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1585 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1586
1587 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1588 sizeof(cmd), &cmd);
1589}
1590
8ca151b5
JB		 1591static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1592 struct ieee80211_vif *vif)
1593{
1594 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1595 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1596 int ret;
1597
aa5e1832
EG		 1598 mvmvif->mvm = mvm;
1599
d40fc489
GG		 1600 /*
1601 * make sure D0i3 exit is completed, otherwise a target access
1602 * during tx queue configuration could be done when still in
1603 * D0i3 state.
1604 */
1605 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1606 if (ret)
1607 return ret;
1608
8ca151b5
JB		 1609 /*
1610 * Not much to do here. The stack will not allow interface
1611 * types or combinations that we didn't advertise, so we
1612 * don't really have to check the types.
1613 */
1614
1615 mutex_lock(&mvm->mutex);
1616
33cef925
JB		 1617 /* make sure that beacon statistics don't go backwards with FW reset */
1618 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1619 mvmvif->beacon_stats.accu_num_beacons +=
1620 mvmvif->beacon_stats.num_beacons;
1621
e89044d7 1622 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1623 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1624 if (ret)
1625 goto out_unlock;
1626
1c2abf72 1627 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1628 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1629 mvm->vif_count++;
ea183d02 1630
8ca151b5
JB		 1631 /*
1632 * The AP binding flow can be done only after the beacon
1633 * template is configured (which happens only in the mac80211
1634 * start_ap() flow), and adding the broadcast station can happen
1635 * only after the binding.
1636 * In addition, since modifying the MAC before adding a bcast
1637 * station is not allowed by the FW, delay the adding of MAC context to
1638 * the point where we can also add the bcast station.
1639 * In short: there's not much we can do at this point, other than
1640 * allocating resources :)
1641 */
5023d966
JB		 1642 if (vif->type == NL80211_IFTYPE_AP ||
1643 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1644 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1645 if (ret) {
1646 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1647 goto out_release;
1648 }
1649
77740cb4 1650 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1651 goto out_unlock;
1652 }
1653
8ca151b5
JB		 1654 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1655 if (ret)
1656 goto out_release;
1657
999609f1 1658 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1659 if (ret)
fd66fc1c 1660 goto out_remove_mac;
8ca151b5 1661
7df15b1e 1662 /* beacon filtering */
a1022927 1663 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1664 if (ret)
1665 goto out_remove_mac;
1666
7df15b1e 1667 if (!mvm->bf_allowed_vif &&
73e5f2c5 1668 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1669 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1670 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1671 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1672 }
1673
8ca151b5
JB		 1674 /*
1675 * P2P_DEVICE interface does not have a channel context assigned to it,
1676 * so a dedicated PHY context is allocated to it and the corresponding
1677 * MAC context is bound to it at this stage.
1678 */
1679 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1680
fe0f2de3
IP		 1681 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1682 if (!mvmvif->phy_ctxt) {
1683 ret = -ENOSPC;
bd3351ba 1684 goto out_free_bf;
fe0f2de3 1685 }
8ca151b5 1686
53a9d61e 1687 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1688 ret = iwl_mvm_binding_add_vif(mvm, vif);
1689 if (ret)
53a9d61e 1690 goto out_unref_phy;
8ca151b5 1691
013290aa 1692 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1693 if (ret)
1694 goto out_unbind;
1695
1696 /* Save a pointer to p2p device vif, so it can later be used to
1697 * update the p2p device MAC when a GO is started/stopped */
1698 mvm->p2p_device_vif = vif;
1699 }
1700
63494374 1701 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1702 goto out_unlock;
1703
1704 out_unbind:
1705 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1706 out_unref_phy:
fe0f2de3 1707 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1708 out_free_bf:
1709 if (mvm->bf_allowed_vif == mvmvif) {
1710 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1711 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1712 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1713 }
8ca151b5
JB		 1714 out_remove_mac:
1715 mvmvif->phy_ctxt = NULL;
1716 iwl_mvm_mac_ctxt_remove(mvm, vif);
1717 out_release:
5ee2b215
AB		 1718 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1719 mvm->vif_count--;
1c2abf72 1720
8ca151b5
JB		 1721 iwl_mvm_mac_ctxt_release(mvm, vif);
1722 out_unlock:
1723 mutex_unlock(&mvm->mutex);
1724
d40fc489
GG		 1725 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1726
8ca151b5
JB		 1727 return ret;
1728}
1729
38a12b5b
JB		 1730static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1731 struct ieee80211_vif *vif)
8ca151b5 1732{
d92b732e 1733 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1734
1735 if (tfd_msk) {
fe92e32a
EG		 1736 /*
1737 * mac80211 first removes all the stations of the vif and
1738 * then removes the vif. When it removes a station it also
1739 * flushes the AMPDU session. So by now, all the AMPDU sessions
1740 * of all the stations of this vif are closed, and the queues
1741 * of these AMPDU sessions are properly closed.
1742 * We still need to take care of the shared queues of the vif.
1743 * Flush them here.
1744 */
8ca151b5
JB		 1745 mutex_lock(&mvm->mutex);
1746 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1747 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1748
1749 /*
1750 * There are transports that buffer a few frames in the host.
1751 * For these, the flush above isn't enough since while we were
1752 * flushing, the transport might have sent more frames to the
1753 * device. To solve this, wait here until the transport is
1754 * empty. Technically, this could have replaced the flush
1755 * above, but flush is much faster than draining. So flush
1756 * first, and drain to make sure we have no frames in the
1757 * transport anymore.
1758 * If a station still had frames on the shared queues, it is
1759 * already marked as draining, so to complete the draining, we
1760 * just need to wait until the transport is empty.
1761 */
1762 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1763 }
1764
1765 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1766 /*
1767 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1768 * We assume here that all the packets sent to the OFFCHANNEL
1769 * queue are sent in ROC session.
1770 */
1771 flush_work(&mvm->roc_done_wk);
1772 } else {
1773 /*
1774 * By now, all the AC queues are empty. The AGG queues are
1775 * empty too. We already got all the Tx responses for all the
1776 * packets in the queues. The drain work can have been
0742a75a 1777 * triggered. Flush it.
8ca151b5
JB		 1778 */
1779 flush_work(&mvm->sta_drained_wk);
1780 }
38a12b5b
JB		 1781}
1782
1783static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1784 struct ieee80211_vif *vif)
1785{
1786 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1787 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1788
1789 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1790
1791 mutex_lock(&mvm->mutex);
1792
7df15b1e
HG		 1793 if (mvm->bf_allowed_vif == mvmvif) {
1794 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1795 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1796 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1797 }
1798
63494374
JB		 1799 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1800
8ca151b5
JB		 1801 /*
1802 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1803 * interface is be handled as part of the stop_ap flow.
8ca151b5 1804 */
5023d966
JB		 1805 if (vif->type == NL80211_IFTYPE_AP ||
1806 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1807#ifdef CONFIG_NL80211_TESTMODE
1808 if (vif == mvm->noa_vif) {
1809 mvm->noa_vif = NULL;
1810 mvm->noa_duration = 0;
1811 }
1812#endif
013290aa 1813 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1814 goto out_release;
1815 }
1816
1817 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1818 mvm->p2p_device_vif = NULL;
013290aa 1819 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1820 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1821 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1822 mvmvif->phy_ctxt = NULL;
1823 }
1824
5ee2b215 1825 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1826 mvm->vif_count--;
1c2abf72 1827
999609f1 1828 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1829 iwl_mvm_mac_ctxt_remove(mvm, vif);
1830
1831out_release:
1832 iwl_mvm_mac_ctxt_release(mvm, vif);
1833 mutex_unlock(&mvm->mutex);
1834}
1835
1836static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1837{
8ca151b5
JB		 1838 return 0;
1839}
1840
e59647ea
EP		 1841struct iwl_mvm_mc_iter_data {
1842 struct iwl_mvm *mvm;
1843 int port_id;
1844};
1845
1846static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1847 struct ieee80211_vif *vif)
1848{
1849 struct iwl_mvm_mc_iter_data *data = _data;
1850 struct iwl_mvm *mvm = data->mvm;
1851 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1852 int ret, len;
1853
1854 /* if we don't have free ports, mcast frames will be dropped */
1855 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1856 return;
1857
1858 if (vif->type != NL80211_IFTYPE_STATION ||
1859 !vif->bss_conf.assoc)
1860 return;
1861
1862 cmd->port_id = data->port_id++;
1863 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1864 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1865
1c4abec0 1866 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1867 if (ret)
1868 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1869}
1870
1871static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1872{
1873 struct iwl_mvm_mc_iter_data iter_data = {
1874 .mvm = mvm,
88f2fd73
MG		 1875 };
1876
e59647ea
EP		 1877 lockdep_assert_held(&mvm->mutex);
1878
1879 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1880 return;
1881
1c4abec0 1882 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1883 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1884 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1885}
1886
e59647ea
EP		 1887static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1888 struct netdev_hw_addr_list *mc_list)
8ca151b5 1889{
e59647ea
EP		 1890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1891 struct iwl_mcast_filter_cmd *cmd;
1892 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1893 int addr_count;
1894 bool pass_all;
e59647ea
EP		 1895 int len;
1896
f3bd58f4
MS		 1897 addr_count = netdev_hw_addr_list_count(mc_list);
1898 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1899 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1900 if (pass_all)
e59647ea 1901 addr_count = 0;
e59647ea
EP		 1902
1903 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1904 cmd = kzalloc(len, GFP_ATOMIC);
1905 if (!cmd)
1906 return 0;
1907
1908 if (pass_all) {
1909 cmd->pass_all = 1;
1910 return (u64)(unsigned long)cmd;
1911 }
1912
1913 netdev_hw_addr_list_for_each(addr, mc_list) {
1914 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1915 cmd->count, addr->addr);
1916 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1917 addr->addr, ETH_ALEN);
1918 cmd->count++;
1919 }
1920
1921 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1922}
1923
1924static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1925 unsigned int changed_flags,
1926 unsigned int *total_flags,
1927 u64 multicast)
1928{
e59647ea
EP		 1929 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1930 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1931
e59647ea 1932 mutex_lock(&mvm->mutex);
51b6b9e0 1933
e59647ea
EP		 1934 /* replace previous configuration */
1935 kfree(mvm->mcast_filter_cmd);
1936 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1937
e59647ea
EP		 1938 if (!cmd)
1939 goto out;
51b6b9e0 1940
e59647ea
EP		 1941 iwl_mvm_recalc_multicast(mvm);
1942out:
1943 mutex_unlock(&mvm->mutex);
1944 *total_flags = 0;
51b6b9e0
EG		 1945}
1946
c87163b9
EP		 1947#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1948struct iwl_bcast_iter_data {
1949 struct iwl_mvm *mvm;
1950 struct iwl_bcast_filter_cmd *cmd;
1951 u8 current_filter;
1952};
1953
1954static void
1955iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1956 const struct iwl_fw_bcast_filter *in_filter,
1957 struct iwl_fw_bcast_filter *out_filter)
1958{
1959 struct iwl_fw_bcast_filter_attr *attr;
1960 int i;
1961
1962 memcpy(out_filter, in_filter, sizeof(*out_filter));
1963
1964 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1965 attr = &out_filter->attrs[i];
1966
1967 if (!attr->mask)
1968 break;
1969
2ee8f021
EP		 1970 switch (attr->reserved1) {
1971 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1972 if (vif->bss_conf.arp_addr_cnt != 1) {
1973 attr->mask = 0;
1974 continue;
1975 }
1976
1977 attr->val = vif->bss_conf.arp_addr_list[0];
1978 break;
1979 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1980 attr->val = *(__be32 *)&vif->addr[2];
1981 break;
1982 default:
1983 break;
1984 }
1985 attr->reserved1 = 0;
c87163b9
EP		 1986 out_filter->num_attrs++;
1987 }
1988}
1989
1990static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1991 struct ieee80211_vif *vif)
1992{
1993 struct iwl_bcast_iter_data *data = _data;
1994 struct iwl_mvm *mvm = data->mvm;
1995 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1997 struct iwl_fw_bcast_mac *bcast_mac;
1998 int i;
1999
2000 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
2001 return;
2002
2003 bcast_mac = &cmd->macs[mvmvif->id];
2004
e48393e8
IP		 2005 /*
2006 * enable filtering only for associated stations, but not for P2P
2007 * Clients
2008 */
2009 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2010 !vif->bss_conf.assoc)
c87163b9
EP		 2011 return;
2012
2013 bcast_mac->default_discard = 1;
2014
2015 /* copy all configured filters */
2016 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2017 /*
2018 * Make sure we don't exceed our filters limit.
2019 * if there is still a valid filter to be configured,
2020 * be on the safe side and just allow bcast for this mac.
2021 */
2022 if (WARN_ON_ONCE(data->current_filter >=
2023 ARRAY_SIZE(cmd->filters))) {
2024 bcast_mac->default_discard = 0;
2025 bcast_mac->attached_filters = 0;
2026 break;
2027 }
2028
2029 iwl_mvm_set_bcast_filter(vif,
2030 &mvm->bcast_filters[i],
2031 &cmd->filters[data->current_filter]);
2032
2033 /* skip current filter if it contains no attributes */
2034 if (!cmd->filters[data->current_filter].num_attrs)
2035 continue;
2036
2037 /* attach the filter to current mac */
2038 bcast_mac->attached_filters |=
2039 cpu_to_le16(BIT(data->current_filter));
2040
2041 data->current_filter++;
2042 }
2043}
2044
de06a59e
EP		 2045bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2046 struct iwl_bcast_filter_cmd *cmd)
c87163b9 2047{
c87163b9
EP		 2048 struct iwl_bcast_iter_data iter_data = {
2049 .mvm = mvm,
de06a59e 2050 .cmd = cmd,
c87163b9
EP		 2051 };
2052
3b8983b1
MS		 2053 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2054 return false;
2055
de06a59e
EP		 2056 memset(cmd, 0, sizeof(*cmd));
2057 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2058 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2059
2060#ifdef CONFIG_IWLWIFI_DEBUGFS
2061 /* use debugfs filters/macs if override is configured */
2062 if (mvm->dbgfs_bcast_filtering.override) {
2063 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2064 sizeof(cmd->filters));
2065 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2066 sizeof(cmd->macs));
2067 return true;
2068 }
2069#endif
c87163b9
EP		 2070
2071 /* if no filters are configured, do nothing */
2072 if (!mvm->bcast_filters)
de06a59e 2073 return false;
c87163b9
EP		 2074
2075 /* configure and attach these filters for each associated sta vif */
2076 ieee80211_iterate_active_interfaces(
2077 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2078 iwl_mvm_bcast_filter_iterator, &iter_data);
2079
de06a59e
EP		 2080 return true;
2081}
2082static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2083 struct ieee80211_vif *vif)
2084{
2085 struct iwl_bcast_filter_cmd cmd;
2086
2087 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2088 return 0;
2089
2090 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2091 return 0;
2092
a1022927 2093 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2094 sizeof(cmd), &cmd);
2095}
2096#else
2097static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2098 struct ieee80211_vif *vif)
2099{
2100 return 0;
2101}
2102#endif
2103
8ca151b5
JB		 2104static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2105 struct ieee80211_vif *vif,
2106 struct ieee80211_bss_conf *bss_conf,
2107 u32 changes)
2108{
2109 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2110 int ret;
2111
6e97b0d2
IP		 2112 /*
2113 * Re-calculate the tsf id, as the master-slave relations depend on the
2114 * beacon interval, which was not known when the station interface was
2115 * added.
2116 */
2117 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2118 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2119
3dfd3a97
JB		 2120 /*
2121 * If we're not associated yet, take the (new) BSSID before associating
2122 * so the firmware knows. If we're already associated, then use the old
2123 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2124 * branch for disassociation below.
2125 */
2126 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2127 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2128
2129 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2130 if (ret)
2131 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2132
3dfd3a97
JB		 2133 /* after sending it once, adopt mac80211 data */
2134 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2135 mvmvif->associated = bss_conf->assoc;
2136
8ca151b5
JB		 2137 if (changes & BSS_CHANGED_ASSOC) {
2138 if (bss_conf->assoc) {
33cef925
JB		 2139 /* clear statistics to get clean beacon counter */
2140 iwl_mvm_request_statistics(mvm, true);
2141 memset(&mvmvif->beacon_stats, 0,
2142 sizeof(mvmvif->beacon_stats));
2143
8ca151b5 2144 /* add quota for this interface */
7754ae79 2145 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2146 if (ret) {
2147 IWL_ERR(mvm, "failed to update quotas\n");
2148 return;
2149 }
016d27e1
JB		 2150
2151 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2152 &mvm->status)) {
2153 /*
2154 * If we're restarting then the firmware will
2155 * obviously have lost synchronisation with
2156 * the AP. It will attempt to synchronise by
2157 * itself, but we can make it more reliable by
2158 * scheduling a session protection time event.
2159 *
2160 * The firmware needs to receive a beacon to
2161 * catch up with synchronisation, use 110% of
2162 * the beacon interval.
2163 *
2164 * Set a large maximum delay to allow for more
2165 * than a single interface.
2166 */
2167 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2168 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2169 5 * dur, false);
016d27e1 2170 }
1f3b0ff8
LE		 2171
2172 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2173 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2174 if (vif->p2p) {
29a90a49 2175 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2176 iwl_mvm_update_smps(mvm, vif,
2177 IWL_MVM_SMPS_REQ_PROT,
2178 IEEE80211_SMPS_DYNAMIC);
2179 }
8ca151b5 2180 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2181 /*
2182 * If update fails - SF might be running in associated
2183 * mode while disassociated - which is forbidden.
2184 */
2185 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2186 "Failed to update SF upon disassociation\n");
2187
8ca151b5
JB		 2188 /* remove AP station now that the MAC is unassoc */
2189 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2190 if (ret)
2191 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2192
2193 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2194 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2195 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2196 /* remove quota for this interface */
7754ae79 2197 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2198 if (ret)
2199 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2200
2201 if (vif->p2p)
2202 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2203
2204 /* this will take the cleared BSSID from bss_conf */
2205 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2206 if (ret)
2207 IWL_ERR(mvm,
2208 "failed to update MAC %pM (clear after unassoc)\n",
2209 vif->addr);
8ca151b5 2210 }
a20fd398 2211
e59647ea 2212 iwl_mvm_recalc_multicast(mvm);
c87163b9 2213 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2214
a20fd398
AO		 2215 /* reset rssi values */
2216 mvmvif->bf_data.ave_beacon_signal = 0;
2217
8e484f0b 2218 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2219 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2220 IEEE80211_SMPS_AUTOMATIC);
989c6505 2221 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2222 /*
2223 * We received a beacon _after_ association so
2224 * remove the session protection.
2225 */
2226 iwl_mvm_remove_time_event(mvm, mvmvif,
2227 &mvmvif->time_event_data);
8ca151b5 2228 }
cc87d322
EH		 2229
2230 if (changes & BSS_CHANGED_BEACON_INFO) {
2231 iwl_mvm_sf_update(mvm, vif, false);
2232 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2233 }
2234
1bc10d3b
JB		 2235 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2236 ret = iwl_mvm_power_update_mac(mvm);
2237 if (ret)
2238 IWL_ERR(mvm, "failed to update power mode\n");
2239 }
2240
88f2fd73
MG		 2241 if (changes & BSS_CHANGED_TXPOWER) {
2242 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2243 bss_conf->txpower);
2244 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2245 }
a20fd398
AO		 2246
2247 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2248 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2249 /* reset cqm events tracking */
2250 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2251 if (mvmvif->bf_data.bf_enabled) {
2252 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2253 if (ret)
2254 IWL_ERR(mvm,
2255 "failed to update CQM thresholds\n");
2256 }
a20fd398 2257 }
2ee8f021
EP		 2258
2259 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2260 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2261 iwl_mvm_configure_bcast_filter(mvm, vif);
2262 }
8ca151b5
JB		 2263}
2264
5023d966
JB		 2265static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2266 struct ieee80211_vif *vif)
8ca151b5
JB		 2267{
2268 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2269 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2270 int ret;
2271
576eeee9
EP		 2272 /*
2273 * iwl_mvm_mac_ctxt_add() might read directly from the device
2274 * (the system time), so make sure it is available.
2275 */
2276 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2277 if (ret)
2278 return ret;
2279
8ca151b5
JB		 2280 mutex_lock(&mvm->mutex);
2281
2282 /* Send the beacon template */
2283 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2284 if (ret)
2285 goto out_unlock;
2286
6e97b0d2
IP		 2287 /*
2288 * Re-calculate the tsf id, as the master-slave relations depend on the
2289 * beacon interval, which was not known when the AP interface was added.
2290 */
2291 if (vif->type == NL80211_IFTYPE_AP)
2292 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2293
8ca151b5
JB		 2294 /* Add the mac context */
2295 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2296 if (ret)
2297 goto out_unlock;
2298
2299 /* Perform the binding */
2300 ret = iwl_mvm_binding_add_vif(mvm, vif);
2301 if (ret)
2302 goto out_remove;
2303
8ca151b5
JB		 2304 /* Send the bcast station. At this stage the TBTT and DTIM time events
2305 * are added and applied to the scheduler */
013290aa 2306 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2307 if (ret)
2308 goto out_unbind;
2309
5691e218
IP		 2310 /* must be set before quota calculations */
2311 mvmvif->ap_ibss_active = true;
2312
a11e144e 2313 /* power updated needs to be done before quotas */
999609f1 2314 iwl_mvm_power_update_mac(mvm);
a11e144e 2315
7754ae79 2316 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2317 if (ret)
a11e144e 2318 goto out_quota_failed;
8ca151b5 2319
5023d966 2320 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2321 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2322 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2323
29a90a49
EP		 2324 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2325
8e484f0b 2326 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2327
f697267f
AN		 2328 /* we don't support TDLS during DCM */
2329 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2330 iwl_mvm_teardown_tdls_peers(mvm);
2331
939e4904 2332 goto out_unlock;
8ca151b5 2333
a11e144e 2334out_quota_failed:
999609f1 2335 iwl_mvm_power_update_mac(mvm);
5691e218 2336 mvmvif->ap_ibss_active = false;
013290aa 2337 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2338out_unbind:
2339 iwl_mvm_binding_remove_vif(mvm, vif);
2340out_remove:
2341 iwl_mvm_mac_ctxt_remove(mvm, vif);
2342out_unlock:
2343 mutex_unlock(&mvm->mutex);
576eeee9 2344 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2345 return ret;
2346}
2347
5023d966
JB		 2348static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2349 struct ieee80211_vif *vif)
8ca151b5
JB		 2350{
2351 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2352 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2353
38a12b5b
JB		 2354 iwl_mvm_prepare_mac_removal(mvm, vif);
2355
8ca151b5
JB		 2356 mutex_lock(&mvm->mutex);
2357
664322fa 2358 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2359 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2360 iwl_mvm_remove_time_event(mvm, mvmvif,
2361 &mvmvif->time_event_data);
664322fa 2362 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2363 }
664322fa 2364
003e5236
AO		 2365 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2366 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2367 mvm->csa_tx_block_bcn_timeout = 0;
2368 }
2369
5023d966 2370 mvmvif->ap_ibss_active = false;
1c87bbad 2371 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2372
8e484f0b 2373 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2374
29a90a49
EP		 2375 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2376
5023d966 2377 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2378 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2379 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2380
7754ae79 2381 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2382 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2383 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2384
999609f1 2385 iwl_mvm_power_update_mac(mvm);
a11e144e 2386
8ca151b5
JB		 2387 iwl_mvm_mac_ctxt_remove(mvm, vif);
2388
2389 mutex_unlock(&mvm->mutex);
2390}
2391
5023d966
JB		 2392static void
2393iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2394 struct ieee80211_vif *vif,
2395 struct ieee80211_bss_conf *bss_conf,
2396 u32 changes)
8ca151b5 2397{
be2056fc 2398 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2399
be2056fc
IP		 2400 /* Changes will be applied when the AP/IBSS is started */
2401 if (!mvmvif->ap_ibss_active)
2402 return;
2403
863230da 2404 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2405 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2406 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2407 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2408
8ca151b5 2409 /* Need to send a new beacon template to the FW */
863230da
JB		 2410 if (changes & BSS_CHANGED_BEACON &&
2411 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2412 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2413
2414 if (changes & BSS_CHANGED_TXPOWER) {
2415 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2416 bss_conf->txpower);
2417 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2418 }
2419
8ca151b5
JB		 2420}
2421
2422static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2423 struct ieee80211_vif *vif,
2424 struct ieee80211_bss_conf *bss_conf,
2425 u32 changes)
2426{
2427 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2428
576eeee9
EP		 2429 /*
2430 * iwl_mvm_bss_info_changed_station() might call
2431 * iwl_mvm_protect_session(), which reads directly from
2432 * the device (the system time), so make sure it is available.
2433 */
2434 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2435 return;
2436
8ca151b5
JB		 2437 mutex_lock(&mvm->mutex);
2438
723f02ed 2439 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2440 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2441
8ca151b5
JB		 2442 switch (vif->type) {
2443 case NL80211_IFTYPE_STATION:
2444 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2445 break;
2446 case NL80211_IFTYPE_AP:
5023d966
JB		 2447 case NL80211_IFTYPE_ADHOC:
2448 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2449 break;
2450 default:
2451 /* shouldn't happen */
2452 WARN_ON_ONCE(1);
2453 }
2454
2455 mutex_unlock(&mvm->mutex);
576eeee9 2456 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2457}
2458
2459static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2460 struct ieee80211_vif *vif,
c56ef672 2461 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2462{
2463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2464 int ret;
2465
6749dd80
LC		 2466 if (hw_req->req.n_channels == 0 ||
2467 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2468 return -EINVAL;
2469
2470 mutex_lock(&mvm->mutex);
6749dd80 2471 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2472 mutex_unlock(&mvm->mutex);
6749dd80 2473
8ca151b5
JB		 2474 return ret;
2475}
2476
2477static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2478 struct ieee80211_vif *vif)
2479{
2480 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2481
2482 mutex_lock(&mvm->mutex);
2483
e7d3abab
LC		 2484 /* Due to a race condition, it's possible that mac80211 asks
2485 * us to stop a hw_scan when it's already stopped. This can
2486 * happen, for instance, if we stopped the scan ourselves,
2487 * called ieee80211_scan_completed() and the userspace called
2488 * cancel scan scan before ieee80211_scan_work() could run.
2489 * To handle that, simply return if the scan is not running.
2490 */
262888fc 2491 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2492 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2493
2494 mutex_unlock(&mvm->mutex);
2495}
2496
2497static void
2498iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2499 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2500 int num_frames,
2501 enum ieee80211_frame_release_type reason,
2502 bool more_data)
2503{
2504 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2505
3e56eadf 2506 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2507
3e56eadf
JB		 2508 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2509 tids, more_data, false);
2510}
2511
2512static void
2513iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2514 struct ieee80211_sta *sta, u16 tids,
2515 int num_frames,
2516 enum ieee80211_frame_release_type reason,
2517 bool more_data)
2518{
2519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2520
2521 /* Called when we need to transmit (a) frame(s) from agg queue */
2522
2523 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2524 tids, more_data, true);
8ca151b5
JB		 2525}
2526
2527static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2528 struct ieee80211_vif *vif,
2529 enum sta_notify_cmd cmd,
2530 struct ieee80211_sta *sta)
2531{
2532 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2533 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2534 unsigned long txqs = 0, tids = 0;
3e56eadf 2535 int tid;
8ca151b5 2536
c22b0ff5
EG		 2537 spin_lock_bh(&mvmsta->lock);
2538 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2539 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2540
2541 if (tid_data->state != IWL_AGG_ON &&
2542 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2543 continue;
2544
2545 __set_bit(tid_data->txq_id, &txqs);
2546
2547 if (iwl_mvm_tid_queued(tid_data) == 0)
2548 continue;
2549
2550 __set_bit(tid, &tids);
2551 }
2552
8ca151b5
JB		 2553 switch (cmd) {
2554 case STA_NOTIFY_SLEEP:
e3d4bc8c 2555 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2556 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2557
c22b0ff5 2558 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2559 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2560
2561 if (txqs)
2562 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2563 /*
2564 * The fw updates the STA to be asleep. Tx packets on the Tx
2565 * queues to this station will not be transmitted. The fw will
2566 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2567 */
2568 break;
2569 case STA_NOTIFY_AWAKE:
881acd89 2570 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2571 break;
c22b0ff5
EG		 2572
2573 if (txqs)
2574 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2575 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2576 break;
2577 default:
2578 break;
2579 }
c22b0ff5 2580 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2581}
2582
1ddbbb0c
JB		 2583static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2584 struct ieee80211_vif *vif,
2585 struct ieee80211_sta *sta)
2586{
2587 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2588 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2589
2590 /*
2591 * This is called before mac80211 does RCU synchronisation,
2592 * so here we already invalidate our internal RCU-protected
2593 * station pointer. The rest of the code will thus no longer
2594 * be able to find the station this way, and we don't rely
2595 * on further RCU synchronisation after the sta_state()
2596 * callback deleted the station.
2597 */
2598 mutex_lock(&mvm->mutex);
2599 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2600 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2601 ERR_PTR(-ENOENT));
2602 mutex_unlock(&mvm->mutex);
2603}
2604
bd1ba664
JB		 2605static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2606 const u8 *bssid)
2607{
2608 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2609 return;
2610
2611 if (iwlwifi_mod_params.uapsd_disable) {
2612 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2613 return;
2614 }
2615
2616 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2617}
2618
8ca151b5
JB		 2619static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2620 struct ieee80211_vif *vif,
2621 struct ieee80211_sta *sta,
2622 enum ieee80211_sta_state old_state,
2623 enum ieee80211_sta_state new_state)
2624{
2625 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2626 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2627 int ret;
2628
2629 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2630 sta->addr, old_state, new_state);
2631
2632 /* this would be a mac80211 bug ... but don't crash */
2633 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2634 return -EINVAL;
2635
2636 /* if a STA is being removed, reuse its ID */
2637 flush_work(&mvm->sta_drained_wk);
2638
2639 mutex_lock(&mvm->mutex);
2640 if (old_state == IEEE80211_STA_NOTEXIST &&
2641 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2642 /*
2643 * Firmware bug - it'll crash if the beacon interval is less
2644 * than 16. We can't avoid connecting at all, so refuse the
2645 * station state change, this will cause mac80211 to abandon
2646 * attempts to connect to this AP, and eventually wpa_s will
2647 * blacklist the AP...
2648 */
2649 if (vif->type == NL80211_IFTYPE_STATION &&
2650 vif->bss_conf.beacon_int < 16) {
2651 IWL_ERR(mvm,
2652 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2653 sta->addr, vif->bss_conf.beacon_int);
2654 ret = -EINVAL;
2655 goto out_unlock;
2656 }
cf7b491d
AN		 2657
2658 if (sta->tdls &&
2659 (vif->p2p ||
fa3d07e4
AN		 2660 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2661 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2662 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2663 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2664 ret = -EBUSY;
2665 goto out_unlock;
2666 }
2667
8ca151b5 2668 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2669 if (sta->tdls && ret == 0)
2670 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2671 } else if (old_state == IEEE80211_STA_NONE &&
2672 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2673 /*
2674 * EBS may be disabled due to previous failures reported by FW.
2675 * Reset EBS status here assuming environment has been changed.
2676 */
2677 mvm->last_ebs_successful = true;
bd1ba664 2678 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2679 ret = 0;
2680 } else if (old_state == IEEE80211_STA_AUTH &&
2681 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2682 ret = iwl_mvm_update_sta(mvm, vif, sta);
2683 if (ret == 0)
2684 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2685 mvmvif->phy_ctxt->channel->band,
2686 true);
8ca151b5
JB		 2687 } else if (old_state == IEEE80211_STA_ASSOC &&
2688 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2689
2690 /* we don't support TDLS during DCM */
2691 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2692 iwl_mvm_teardown_tdls_peers(mvm);
2693
7df15b1e 2694 /* enable beacon filtering */
fa7b2e7f 2695 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2696 ret = 0;
2697 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2698 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2699 /* disable beacon filtering */
a1022927 2700 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2701 ret = 0;
2702 } else if (old_state == IEEE80211_STA_ASSOC &&
2703 new_state == IEEE80211_STA_AUTH) {
2704 ret = 0;
2705 } else if (old_state == IEEE80211_STA_AUTH &&
2706 new_state == IEEE80211_STA_NONE) {
2707 ret = 0;
2708 } else if (old_state == IEEE80211_STA_NONE &&
2709 new_state == IEEE80211_STA_NOTEXIST) {
2710 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2711 if (sta->tdls)
2712 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2713 } else {
2714 ret = -EIO;
2715 }
48bc1307 2716 out_unlock:
8ca151b5
JB		 2717 mutex_unlock(&mvm->mutex);
2718
9c126cd6
LK		 2719 if (sta->tdls && ret == 0) {
2720 if (old_state == IEEE80211_STA_NOTEXIST &&
2721 new_state == IEEE80211_STA_NONE)
2722 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2723 else if (old_state == IEEE80211_STA_NONE &&
2724 new_state == IEEE80211_STA_NOTEXIST)
2725 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2726 }
2727
8ca151b5
JB		 2728 return ret;
2729}
2730
2731static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2732{
2733 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2734
2735 mvm->rts_threshold = value;
2736
2737 return 0;
2738}
2739
1f3b0ff8
LE		 2740static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2741 struct ieee80211_vif *vif,
2742 struct ieee80211_sta *sta, u32 changed)
2743{
2744 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2745
2746 if (vif->type == NL80211_IFTYPE_STATION &&
2747 changed & IEEE80211_RC_NSS_CHANGED)
2748 iwl_mvm_sf_update(mvm, vif, false);
2749}
2750
8ca151b5
JB		 2751static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2752 struct ieee80211_vif *vif, u16 ac,
2753 const struct ieee80211_tx_queue_params *params)
2754{
2755 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2756 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2757
2758 mvmvif->queue_params[ac] = *params;
2759
2760 /*
2761 * No need to update right away, we'll get BSS_CHANGED_QOS
2762 * The exception is P2P_DEVICE interface which needs immediate update.
2763 */
2764 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2765 int ret;
2766
2767 mutex_lock(&mvm->mutex);
3dfd3a97 2768 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2769 mutex_unlock(&mvm->mutex);
2770 return ret;
2771 }
2772 return 0;
2773}
2774
2775static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2776 struct ieee80211_vif *vif)
2777{
2778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2779 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2780 200 + vif->bss_conf.beacon_int);
2781 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2782 100 + vif->bss_conf.beacon_int);
2783
2784 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2785 return;
2786
576eeee9
EP		 2787 /*
2788 * iwl_mvm_protect_session() reads directly from the device
2789 * (the system time), so make sure it is available.
2790 */
2791 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2792 return;
2793
8ca151b5
JB		 2794 mutex_lock(&mvm->mutex);
2795 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2796 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2797 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2798
2799 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2800}
2801
35a000b7
DS		 2802static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2803 struct ieee80211_vif *vif,
2804 struct cfg80211_sched_scan_request *req,
633e2713 2805 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2806{
2807 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2808
35a000b7 2809 int ret;
4660dfbb 2810
35a000b7
DS		 2811 mutex_lock(&mvm->mutex);
2812
1f940386 2813 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2814 ret = -EBUSY;
2815 goto out;
2816 }
2817
19945dfb 2818 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2819
35a000b7
DS		 2820out:
2821 mutex_unlock(&mvm->mutex);
2822 return ret;
2823}
2824
37e3308c
JB		 2825static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2826 struct ieee80211_vif *vif)
35a000b7
DS		 2827{
2828 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2829 int ret;
35a000b7
DS		 2830
2831 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2832
2833 /* Due to a race condition, it's possible that mac80211 asks
2834 * us to stop a sched_scan when it's already stopped. This
2835 * can happen, for instance, if we stopped the scan ourselves,
2836 * called ieee80211_sched_scan_stopped() and the userspace called
2837 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2838 * could run. To handle this, simply return if the scan is
2839 * not running.
2840 */
262888fc 2841 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2842 mutex_unlock(&mvm->mutex);
2843 return 0;
2844 }
2845
c7d42480 2846 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2847 mutex_unlock(&mvm->mutex);
33ea27f6 2848 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2849
33ea27f6 2850 return ret;
35a000b7
DS		 2851}
2852
8ca151b5
JB		 2853static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2854 enum set_key_cmd cmd,
2855 struct ieee80211_vif *vif,
2856 struct ieee80211_sta *sta,
2857 struct ieee80211_key_conf *key)
2858{
2859 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2860 int ret;
2861
2862 if (iwlwifi_mod_params.sw_crypto) {
2863 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2864 return -EOPNOTSUPP;
2865 }
2866
2867 switch (key->cipher) {
2868 case WLAN_CIPHER_SUITE_TKIP:
2869 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2870 /* fall-through */
2871 case WLAN_CIPHER_SUITE_CCMP:
2872 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2873 break;
2874 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2875 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2876 break;
2877 case WLAN_CIPHER_SUITE_WEP40:
2878 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2879 /* For non-client mode, only use WEP keys for TX as we probably
2880 * don't have a station yet anyway and would then have to keep
2881 * track of the keys, linking them to each of the clients/peers
2882 * as they appear. For now, don't do that, for performance WEP
2883 * offload doesn't really matter much, but we need it for some
2884 * other offload features in client mode.
8ca151b5 2885 */
ba3943b0
JB		 2886 if (vif->type != NL80211_IFTYPE_STATION)
2887 return 0;
2888 break;
8ca151b5 2889 default:
e36e5433
MS		 2890 /* currently FW supports only one optional cipher scheme */
2891 if (hw->n_cipher_schemes &&
2892 hw->cipher_schemes->cipher == key->cipher)
2893 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2894 else
2895 return -EOPNOTSUPP;
8ca151b5
JB		 2896 }
2897
2898 mutex_lock(&mvm->mutex);
2899
2900 switch (cmd) {
2901 case SET_KEY:
5023d966
JB		 2902 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2903 vif->type == NL80211_IFTYPE_AP) && !sta) {
2904 /*
2905 * GTK on AP interface is a TX-only key, return 0;
2906 * on IBSS they're per-station and because we're lazy
2907 * we don't support them for RX, so do the same.
2908 */
6caffd4f
JB		 2909 ret = 0;
2910 key->hw_key_idx = STA_KEY_IDX_INVALID;
2911 break;
2912 }
2913
b546dcd6
JB		 2914 /* During FW restart, in order to restore the state as it was,
2915 * don't try to reprogram keys we previously failed for.
2916 */
2917 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2918 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2919 IWL_DEBUG_MAC80211(mvm,
2920 "skip invalid idx key programming during restart\n");
2921 ret = 0;
2922 break;
2923 }
2924
8ca151b5 2925 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2926 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2927 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2928 &mvm->status));
8ca151b5
JB		 2929 if (ret) {
2930 IWL_WARN(mvm, "set key failed\n");
2931 /*
2932 * can't add key for RX, but we don't need it
2933 * in the device for TX so still return 0
2934 */
6caffd4f 2935 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2936 ret = 0;
2937 }
2938
2939 break;
2940 case DISABLE_KEY:
6caffd4f
JB		 2941 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2942 ret = 0;
2943 break;
2944 }
2945
8ca151b5
JB		 2946 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2947 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2948 break;
2949 default:
2950 ret = -EINVAL;
2951 }
2952
2953 mutex_unlock(&mvm->mutex);
2954 return ret;
2955}
2956
2957static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2958 struct ieee80211_vif *vif,
2959 struct ieee80211_key_conf *keyconf,
2960 struct ieee80211_sta *sta,
2961 u32 iv32, u16 *phase1key)
2962{
2963 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2964
5023d966
JB		 2965 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2966 return;
2967
8ca151b5
JB		 2968 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2969}
2970
2971
b112889c
AM		 2972static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2973 struct iwl_rx_packet *pkt, void *data)
2974{
2975 struct iwl_mvm *mvm =
2976 container_of(notif_wait, struct iwl_mvm, notif_wait);
2977 struct iwl_hs20_roc_res *resp;
2978 int resp_len = iwl_rx_packet_payload_len(pkt);
2979 struct iwl_mvm_time_event_data *te_data = data;
2980
2981 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2982 return true;
2983
2984 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2985 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2986 return true;
2987 }
2988
2989 resp = (void *)pkt->data;
2990
2991 IWL_DEBUG_TE(mvm,
2992 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2993 resp->status, resp->event_unique_id);
2994
2995 te_data->uid = le32_to_cpu(resp->event_unique_id);
2996 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2997 te_data->uid);
2998
2999 spin_lock_bh(&mvm->time_event_lock);
3000 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3001 spin_unlock_bh(&mvm->time_event_lock);
3002
3003 return true;
3004}
3005
35d3dab5 3006#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3007static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3008 struct ieee80211_channel *channel,
3009 struct ieee80211_vif *vif,
3010 int duration)
3011{
3012 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3013 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3014 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3015 static const u8 time_event_response[] = { HOT_SPOT_CMD };
3016 struct iwl_notification_wait wait_time_event;
3017 struct iwl_hs20_roc_req aux_roc_req = {
3018 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3019 .id_and_color =
3020 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3021 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3022 /* Set the channel info data */
3023 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3024 PHY_BAND_24 : PHY_BAND_5,
3025 .channel_info.channel = channel->hw_value,
3026 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3027 /* Set the time and duration */
3028 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3029 .apply_time_max_delay =
3030 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3031 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3032 };
3033
3034 /* Set the node address */
3035 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3036
a6cc5163
MG		 3037 lockdep_assert_held(&mvm->mutex);
3038
3039 spin_lock_bh(&mvm->time_event_lock);
3040
3041 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3042 spin_unlock_bh(&mvm->time_event_lock);
3043 return -EIO;
3044 }
3045
b112889c
AM		 3046 te_data->vif = vif;
3047 te_data->duration = duration;
3048 te_data->id = HOT_SPOT_CMD;
3049
b112889c
AM		 3050 spin_unlock_bh(&mvm->time_event_lock);
3051
3052 /*
3053 * Use a notification wait, which really just processes the
3054 * command response and doesn't wait for anything, in order
3055 * to be able to process the response and get the UID inside
3056 * the RX path. Using CMD_WANT_SKB doesn't work because it
3057 * stores the buffer and then wakes up this thread, by which
3058 * time another notification (that the time event started)
3059 * might already be processed unsuccessfully.
3060 */
3061 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3062 time_event_response,
3063 ARRAY_SIZE(time_event_response),
3064 iwl_mvm_rx_aux_roc, te_data);
3065
3066 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3067 &aux_roc_req);
3068
3069 if (res) {
3070 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3071 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3072 goto out_clear_te;
3073 }
3074
3075 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3076 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3077 /* should never fail */
3078 WARN_ON_ONCE(res);
3079
3080 if (res) {
3081 out_clear_te:
3082 spin_lock_bh(&mvm->time_event_lock);
3083 iwl_mvm_te_clear_data(mvm, te_data);
3084 spin_unlock_bh(&mvm->time_event_lock);
3085 }
3086
3087 return res;
3088}
3089
8ca151b5
JB		 3090static int iwl_mvm_roc(struct ieee80211_hw *hw,
3091 struct ieee80211_vif *vif,
3092 struct ieee80211_channel *channel,
d339d5ca
IP		 3093 int duration,
3094 enum ieee80211_roc_type type)
8ca151b5
JB		 3095{
3096 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3097 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3098 struct cfg80211_chan_def chandef;
31d385ae
IP		 3099 struct iwl_mvm_phy_ctxt *phy_ctxt;
3100 int ret, i;
3101
3102 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3103 duration, type);
8ca151b5 3104
6ed13164
MG		 3105 flush_work(&mvm->roc_done_wk);
3106
a6cc5163
MG		 3107 mutex_lock(&mvm->mutex);
3108
b112889c
AM		 3109 switch (vif->type) {
3110 case NL80211_IFTYPE_STATION:
859d914c
JB		 3111 if (fw_has_capa(&mvm->fw->ucode_capa,
3112 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3113 /* Use aux roc framework (HS20) */
3114 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3115 vif, duration);
3116 goto out_unlock;
3117 }
3118 IWL_ERR(mvm, "hotspot not supported\n");
3119 ret = -EINVAL;
a6cc5163 3120 goto out_unlock;
b112889c
AM		 3121 case NL80211_IFTYPE_P2P_DEVICE:
3122 /* handle below */
3123 break;
3124 default:
3125 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3126 ret = -EINVAL;
3127 goto out_unlock;
8ca151b5
JB		 3128 }
3129
31d385ae
IP		 3130 for (i = 0; i < NUM_PHY_CTX; i++) {
3131 phy_ctxt = &mvm->phy_ctxts[i];
3132 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3133 continue;
3134
3135 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3136 /*
3137 * Unbind the P2P_DEVICE from the current PHY context,
3138 * and if the PHY context is not used remove it.
3139 */
3140 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3141 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3142 goto out_unlock;
3143
3144 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3145
3146 /* Bind the P2P_DEVICE to the current PHY Context */
3147 mvmvif->phy_ctxt = phy_ctxt;
3148
3149 ret = iwl_mvm_binding_add_vif(mvm, vif);
3150 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3151 goto out_unlock;
3152
3153 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3154 goto schedule_time_event;
3155 }
3156 }
3157
3158 /* Need to update the PHY context only if the ROC channel changed */
3159 if (channel == mvmvif->phy_ctxt->channel)
3160 goto schedule_time_event;
3161
8ca151b5 3162 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3163
31d385ae
IP		 3164 /*
3165 * Change the PHY context configuration as it is currently referenced
3166 * only by the P2P Device MAC
3167 */
3168 if (mvmvif->phy_ctxt->ref == 1) {
3169 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3170 &chandef, 1, 1);
3171 if (ret)
3172 goto out_unlock;
3173 } else {
3174 /*
3175 * The PHY context is shared with other MACs. Need to remove the
3176 * P2P Device from the binding, allocate an new PHY context and
3177 * create a new binding
3178 */
3179 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3180 if (!phy_ctxt) {
3181 ret = -ENOSPC;
3182 goto out_unlock;
3183 }
3184
3185 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3186 1, 1);
3187 if (ret) {
3188 IWL_ERR(mvm, "Failed to change PHY context\n");
3189 goto out_unlock;
3190 }
3191
3192 /* Unbind the P2P_DEVICE from the current PHY context */
3193 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3194 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3195 goto out_unlock;
3196
3197 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3198
3199 /* Bind the P2P_DEVICE to the new allocated PHY context */
3200 mvmvif->phy_ctxt = phy_ctxt;
3201
3202 ret = iwl_mvm_binding_add_vif(mvm, vif);
3203 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3204 goto out_unlock;
3205
3206 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3207 }
3208
3209schedule_time_event:
8ca151b5 3210 /* Schedule the time events */
e635c797 3211 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3212
31d385ae 3213out_unlock:
8ca151b5
JB		 3214 mutex_unlock(&mvm->mutex);
3215 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3216 return ret;
3217}
3218
3219static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3220{
3221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3222
3223 IWL_DEBUG_MAC80211(mvm, "enter\n");
3224
3225 mutex_lock(&mvm->mutex);
bf5da87f 3226 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3227 mutex_unlock(&mvm->mutex);
3228
3229 IWL_DEBUG_MAC80211(mvm, "leave\n");
3230 return 0;
3231}
3232
b08c1d97
LC		 3233static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3234 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3235{
fe0f2de3
IP		 3236 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3237 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3238 int ret;
3239
b08c1d97
LC		 3240 lockdep_assert_held(&mvm->mutex);
3241
53a9d61e 3242 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3243
fe0f2de3
IP		 3244 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3245 if (!phy_ctxt) {
3246 ret = -ENOSPC;
3247 goto out;
3248 }
8ca151b5 3249
dcbc3e1a 3250 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3251 ctx->rx_chains_static,
3252 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3253 if (ret) {
3254 IWL_ERR(mvm, "Failed to add PHY context\n");
3255 goto out;
3256 }
3257
53a9d61e 3258 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3259 *phy_ctxt_id = phy_ctxt->id;
3260out:
b08c1d97
LC		 3261 return ret;
3262}
3263
3264static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3265 struct ieee80211_chanctx_conf *ctx)
3266{
3267 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3268 int ret;
3269
3270 mutex_lock(&mvm->mutex);
3271 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3272 mutex_unlock(&mvm->mutex);
b08c1d97 3273
8ca151b5
JB		 3274 return ret;
3275}
3276
b08c1d97
LC		 3277static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3278 struct ieee80211_chanctx_conf *ctx)
3279{
3280 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3281 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3282
3283 lockdep_assert_held(&mvm->mutex);
3284
3285 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3286}
3287
8ca151b5
JB		 3288static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3289 struct ieee80211_chanctx_conf *ctx)
3290{
3291 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3292
3293 mutex_lock(&mvm->mutex);
b08c1d97 3294 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3295 mutex_unlock(&mvm->mutex);
3296}
3297
3298static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3299 struct ieee80211_chanctx_conf *ctx,
3300 u32 changed)
3301{
3302 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3303 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3304 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3305
31d385ae
IP		 3306 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3307 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3308 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3309 IEEE80211_CHANCTX_CHANGE_RADAR |
3310 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3311 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3312 phy_ctxt->ref, changed))
3313 return;
3314
8ca151b5 3315 mutex_lock(&mvm->mutex);
4d66449a 3316 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3317 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3318 ctx->rx_chains_static,
3319 ctx->rx_chains_dynamic);
3320 mutex_unlock(&mvm->mutex);
3321}
3322
b08c1d97
LC		 3323static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3324 struct ieee80211_vif *vif,
f0c97783
LC		 3325 struct ieee80211_chanctx_conf *ctx,
3326 bool switching_chanctx)
8ca151b5 3327{
fe0f2de3
IP		 3328 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3329 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3330 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3331 int ret;
3332
b08c1d97 3333 lockdep_assert_held(&mvm->mutex);
8ca151b5 3334
fe0f2de3 3335 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3336
3337 switch (vif->type) {
3338 case NL80211_IFTYPE_AP:
4741dd04
LC		 3339 /* only needed if we're switching chanctx (i.e. during CSA) */
3340 if (switching_chanctx) {
bd3398e2
AO		 3341 mvmvif->ap_ibss_active = true;
3342 break;
3343 }
5023d966 3344 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3345 /*
3346 * The AP binding flow is handled as part of the start_ap flow
5023d966 3347 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3348 */
3349 ret = 0;
b08c1d97 3350 goto out;
8ca151b5 3351 case NL80211_IFTYPE_STATION:
2533edce 3352 break;
8ca151b5 3353 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3354 /* always disable PS when a monitor interface is active */
3355 mvmvif->ps_disabled = true;
8ca151b5
JB		 3356 break;
3357 default:
3358 ret = -EINVAL;
b08c1d97 3359 goto out;
8ca151b5
JB		 3360 }
3361
3362 ret = iwl_mvm_binding_add_vif(mvm, vif);
3363 if (ret)
b08c1d97 3364 goto out;
8ca151b5
JB		 3365
3366 /*
92d85562
AB		 3367 * Power state must be updated before quotas,
3368 * otherwise fw will complain.
3369 */
999609f1 3370 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3371
3372 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3373 * interfaces. For the other types, the bss_info changed flow
3374 * will handle quota settings.
3375 */
3376 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3377 mvmvif->monitor_active = true;
7754ae79 3378 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3379 if (ret)
3380 goto out_remove_binding;
3381 }
3382
bd3398e2 3383 /* Handle binding during CSA */
a57c688d 3384 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3385 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3386 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3387 }
3388
4741dd04 3389 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3390 u32 duration = 2 * vif->bss_conf.beacon_int;
3391
3392 /* iwl_mvm_protect_session() reads directly from the
3393 * device (the system time), so make sure it is
3394 * available.
3395 */
3396 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3397 if (ret)
3398 goto out_remove_binding;
3399
3400 /* Protect the session to make sure we hear the first
3401 * beacon on the new channel.
3402 */
3403 iwl_mvm_protect_session(mvm, vif, duration, duration,
3404 vif->bss_conf.beacon_int / 2,
3405 true);
3406
3407 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3408
7754ae79 3409 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3410 }
3411
b08c1d97 3412 goto out;
8ca151b5 3413
b08c1d97 3414out_remove_binding:
8ca151b5 3415 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3416 iwl_mvm_power_update_mac(mvm);
b08c1d97 3417out:
8ca151b5
JB		 3418 if (ret)
3419 mvmvif->phy_ctxt = NULL;
3420 return ret;
3421}
b08c1d97
LC		 3422static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3423 struct ieee80211_vif *vif,
3424 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3425{
3426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3427 int ret;
8ca151b5
JB		 3428
3429 mutex_lock(&mvm->mutex);
f0c97783 3430 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3431 mutex_unlock(&mvm->mutex);
3432
3433 return ret;
3434}
3435
3436static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3437 struct ieee80211_vif *vif,
f0c97783
LC		 3438 struct ieee80211_chanctx_conf *ctx,
3439 bool switching_chanctx)
b08c1d97
LC		 3440{
3441 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3442 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3443
3444 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3445
3446 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3447
8ca151b5 3448 switch (vif->type) {
5023d966 3449 case NL80211_IFTYPE_ADHOC:
b08c1d97 3450 goto out;
8ca151b5 3451 case NL80211_IFTYPE_MONITOR:
1e1391ca 3452 mvmvif->monitor_active = false;
2533edce 3453 mvmvif->ps_disabled = false;
8ca151b5 3454 break;
bd3398e2
AO		 3455 case NL80211_IFTYPE_AP:
3456 /* This part is triggered only during CSA */
4741dd04 3457 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3458 goto out;
bd3398e2 3459
7ef0aab6
AO		 3460 mvmvif->csa_countdown = false;
3461
003e5236
AO		 3462 /* Set CS bit on all the stations */
3463 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3464
3465 /* Save blocked iface, the timeout is set on the next beacon */
3466 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3467
bd3398e2 3468 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3469 break;
3470 case NL80211_IFTYPE_STATION:
3471 if (!switching_chanctx)
3472 break;
3473
3474 disabled_vif = vif;
3475
3dfd3a97 3476 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3477 break;
8ca151b5
JB		 3478 default:
3479 break;
3480 }
3481
7754ae79 3482 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3483 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3484
b08c1d97 3485out:
a11e144e 3486 mvmvif->phy_ctxt = NULL;
999609f1 3487 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3488}
3489
3490static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3491 struct ieee80211_vif *vif,
3492 struct ieee80211_chanctx_conf *ctx)
3493{
3494 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3495
3496 mutex_lock(&mvm->mutex);
f0c97783 3497 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3498 mutex_unlock(&mvm->mutex);
3499}
3500
50cc9574
LC		 3501static int
3502iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3503 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3504{
b08c1d97
LC		 3505 int ret;
3506
b08c1d97 3507 mutex_lock(&mvm->mutex);
f0c97783 3508 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3509 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3510
3511 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3512 if (ret) {
3513 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3514 goto out_reassign;
3515 }
3516
f0c97783
LC		 3517 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3518 true);
b08c1d97
LC		 3519 if (ret) {
3520 IWL_ERR(mvm,
3521 "failed to assign new_ctx during channel switch\n");
3522 goto out_remove;
3523 }
3524
f697267f
AN		 3525 /* we don't support TDLS during DCM - can be caused by channel switch */
3526 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3527 iwl_mvm_teardown_tdls_peers(mvm);
3528
b08c1d97
LC		 3529 goto out;
3530
3531out_remove:
3532 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3533
3534out_reassign:
6fd1fb63 3535 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3536 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3537 goto out_restart;
3538 }
3539
6fd1fb63
LC		 3540 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3541 true)) {
b08c1d97
LC		 3542 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3543 goto out_restart;
3544 }
3545
3546 goto out;
3547
3548out_restart:
3549 /* things keep failing, better restart the hw */
3550 iwl_mvm_nic_restart(mvm, false);
3551
3552out:
3553 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3554
3555 return ret;
3556}
3557
48a256e8
LC		 3558static int
3559iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3560 struct ieee80211_vif_chanctx_switch *vifs)
3561{
3562 int ret;
3563
3564 mutex_lock(&mvm->mutex);
3565 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3566
3567 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3568 true);
3569 if (ret) {
3570 IWL_ERR(mvm,
3571 "failed to assign new_ctx during channel switch\n");
3572 goto out_reassign;
3573 }
3574
3575 goto out;
3576
3577out_reassign:
3578 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3579 true)) {
3580 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3581 goto out_restart;
3582 }
3583
3584 goto out;
3585
3586out_restart:
3587 /* things keep failing, better restart the hw */
3588 iwl_mvm_nic_restart(mvm, false);
3589
3590out:
3591 mutex_unlock(&mvm->mutex);
3592
3593 return ret;
3594}
3595
50cc9574
LC		 3596static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3597 struct ieee80211_vif_chanctx_switch *vifs,
3598 int n_vifs,
3599 enum ieee80211_chanctx_switch_mode mode)
3600{
3601 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3602 int ret;
3603
3604 /* we only support a single-vif right now */
3605 if (n_vifs > 1)
3606 return -EOPNOTSUPP;
3607
3608 switch (mode) {
3609 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3610 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3611 break;
3612 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3613 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3614 break;
3615 default:
3616 ret = -EOPNOTSUPP;
3617 break;
3618 }
3619
b08c1d97
LC		 3620 return ret;
3621}
3622
8ca151b5
JB		 3623static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3624 struct ieee80211_sta *sta,
3625 bool set)
3626{
3627 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3628 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3629
3630 if (!mvm_sta || !mvm_sta->vif) {
3631 IWL_ERR(mvm, "Station is not associated to a vif\n");
3632 return -EINVAL;
3633 }
3634
3635 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3636}
3637
507cadf2
DS		 3638#ifdef CONFIG_NL80211_TESTMODE
3639static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3640 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3641 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3642 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3643};
3644
3645static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3646 struct ieee80211_vif *vif,
3647 void *data, int len)
3648{
3649 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3650 int err;
3651 u32 noa_duration;
3652
3653 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3654 if (err)
3655 return err;
3656
3657 if (!tb[IWL_MVM_TM_ATTR_CMD])
3658 return -EINVAL;
3659
3660 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3661 case IWL_MVM_TM_CMD_SET_NOA:
3662 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3663 !vif->bss_conf.enable_beacon ||
3664 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3665 return -EINVAL;
3666
3667 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3668 if (noa_duration >= vif->bss_conf.beacon_int)
3669 return -EINVAL;
3670
3671 mvm->noa_duration = noa_duration;
3672 mvm->noa_vif = vif;
3673
7754ae79 3674 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3675 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3676 /* must be associated client vif - ignore authorized */
3677 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3678 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3679 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3680 return -EINVAL;
3681
3682 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3683 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3684 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3685 }
3686
3687 return -EOPNOTSUPP;
3688}
3689
3690static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3691 struct ieee80211_vif *vif,
3692 void *data, int len)
3693{
3694 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3695 int err;
3696
3697 mutex_lock(&mvm->mutex);
3698 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3699 mutex_unlock(&mvm->mutex);
3700
3701 return err;
3702}
3703#endif
3704
622e3f9b
LC		 3705static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3706 struct ieee80211_vif *vif,
3707 struct ieee80211_channel_switch *chsw)
3708{
3709 /* By implementing this operation, we prevent mac80211 from
3710 * starting its own channel switch timer, so that we can call
3711 * ieee80211_chswitch_done() ourselves at the right time
3712 * (which is when the absence time event starts).
3713 */
3714
3715 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3716 "dummy channel switch op\n");
3717}
3718
f028905c
LC		 3719static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3720 struct ieee80211_vif *vif,
3721 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3722{
3723 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3724 struct ieee80211_vif *csa_vif;
f6c34820 3725 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3726 u32 apply_time;
f028905c 3727 int ret;
bd3398e2
AO		 3728
3729 mutex_lock(&mvm->mutex);
664322fa 3730
81d62d5a
JB		 3731 mvmvif->csa_failed = false;
3732
6b20d774 3733 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3734 chsw->chandef.center_freq1);
6b20d774 3735
21023b1e 3736 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3737
6b20d774
LC		 3738 switch (vif->type) {
3739 case NL80211_IFTYPE_AP:
3740 csa_vif =
3741 rcu_dereference_protected(mvm->csa_vif,
3742 lockdep_is_held(&mvm->mutex));
3743 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3744 "Another CSA is already in progress")) {
3745 ret = -EBUSY;
3746 goto out_unlock;
3747 }
3748
3749 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3750
7ef0aab6
AO		 3751 if (WARN_ONCE(mvmvif->csa_countdown,
3752 "Previous CSA countdown didn't complete")) {
3753 ret = -EBUSY;
3754 goto out_unlock;
3755 }
3756
6b20d774 3757 break;
dc88b4ba 3758 case NL80211_IFTYPE_STATION:
4500e133
LC		 3759 /* Schedule the time event to a bit before beacon 1,
3760 * to make sure we're in the new channel when the
3761 * GO/AP arrives.
3762 */
3763 apply_time = chsw->device_timestamp +
3764 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3765 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3766
3767 if (chsw->block_tx)
3768 iwl_mvm_csa_client_absent(mvm, vif);
3769
4500e133 3770 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3771 apply_time);
c6e0a3e0
LC		 3772 if (mvmvif->bf_data.bf_enabled) {
3773 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3774 if (ret)
3775 goto out_unlock;
3776 }
3777
dc88b4ba 3778 break;
6b20d774
LC		 3779 default:
3780 break;
3781 }
bd3398e2 3782
f6c34820
LC		 3783 mvmvif->ps_disabled = true;
3784
3785 ret = iwl_mvm_power_update_ps(mvm);
3786 if (ret)
3787 goto out_unlock;
f028905c 3788
e198f5e7
AN		 3789 /* we won't be on this channel any longer */
3790 iwl_mvm_teardown_tdls_peers(mvm);
3791
bd3398e2
AO		 3792out_unlock:
3793 mutex_unlock(&mvm->mutex);
f028905c
LC		 3794
3795 return ret;
bd3398e2
AO		 3796}
3797
f6c34820
LC		 3798static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3799 struct ieee80211_vif *vif)
3800{
3801 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3803 int ret;
3804
3805 mutex_lock(&mvm->mutex);
3806
81d62d5a
JB		 3807 if (mvmvif->csa_failed) {
3808 mvmvif->csa_failed = false;
3809 ret = -EIO;
3810 goto out_unlock;
3811 }
3812
a57c688d
LC		 3813 if (vif->type == NL80211_IFTYPE_STATION) {
3814 struct iwl_mvm_sta *mvmsta;
3815
3816 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3817 mvmvif->ap_sta_id);
3818
3819 if (WARN_ON(!mvmsta)) {
3820 ret = -EIO;
3821 goto out_unlock;
3822 }
3823
3824 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3825
3826 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3827
3828 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3829 if (ret)
3830 goto out_unlock;
686e7fe1
LC		 3831
3832 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3833 }
3834
f6c34820
LC		 3835 mvmvif->ps_disabled = false;
3836
3837 ret = iwl_mvm_power_update_ps(mvm);
3838
a57c688d 3839out_unlock:
f6c34820
LC		 3840 mutex_unlock(&mvm->mutex);
3841
3842 return ret;
3843}
3844
c5b0e7c0
EG		 3845static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3846 struct ieee80211_vif *vif, u32 queues, bool drop)
3847{
3848 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3849 struct iwl_mvm_vif *mvmvif;
3850 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3851 struct ieee80211_sta *sta;
3852 int i;
3853 u32 msk = 0;
c5b0e7c0
EG		 3854
3855 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3856 return;
3857
3858 mutex_lock(&mvm->mutex);
3859 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3860
a0f6bf2a
AN		 3861 /* flush the AP-station and all TDLS peers */
3862 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3863 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3864 lockdep_is_held(&mvm->mutex));
3865 if (IS_ERR_OR_NULL(sta))
3866 continue;
3867
3868 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3869 if (mvmsta->vif != vif)
3870 continue;
3871
3872 /* make sure only TDLS peers or the AP are flushed */
3873 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3874
3875 msk |= mvmsta->tfd_queue_msk;
480acbce 3876 }
c5b0e7c0 3877
6d440b25
EG		 3878 if (drop) {
3879 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3880 IWL_ERR(mvm, "flush request fail\n");
3881 mutex_unlock(&mvm->mutex);
3882 } else {
3883 mutex_unlock(&mvm->mutex);
4e6c48e0 3884
6d440b25
EG		 3885 /* this can take a while, and we may need/want other operations
3886 * to succeed while doing this, so do it without the mutex held
3887 */
3888 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3889 }
c5b0e7c0
EG		 3890}
3891
91a8bcde
JB		 3892static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3893 struct survey_info *survey)
3894{
3895 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3896 int ret;
3897
3898 memset(survey, 0, sizeof(*survey));
3899
3900 /* only support global statistics right now */
3901 if (idx != 0)
3902 return -ENOENT;
3903
859d914c 3904 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3905 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3906 return -ENOENT;
3907
3908 mutex_lock(&mvm->mutex);
3909
3910 if (mvm->ucode_loaded) {
33cef925 3911 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3912 if (ret)
3913 goto out;
3914 }
3915
3916 survey->filled = SURVEY_INFO_TIME |
3917 SURVEY_INFO_TIME_RX |
3918 SURVEY_INFO_TIME_TX |
3919 SURVEY_INFO_TIME_SCAN;
3920 survey->time = mvm->accu_radio_stats.on_time_rf +
3921 mvm->radio_stats.on_time_rf;
3922 do_div(survey->time, USEC_PER_MSEC);
3923
3924 survey->time_rx = mvm->accu_radio_stats.rx_time +
3925 mvm->radio_stats.rx_time;
3926 do_div(survey->time_rx, USEC_PER_MSEC);
3927
3928 survey->time_tx = mvm->accu_radio_stats.tx_time +
3929 mvm->radio_stats.tx_time;
3930 do_div(survey->time_tx, USEC_PER_MSEC);
3931
3932 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3933 mvm->radio_stats.on_time_scan;
3934 do_div(survey->time_scan, USEC_PER_MSEC);
3935
10a7c028 3936 ret = 0;
91a8bcde
JB		 3937 out:
3938 mutex_unlock(&mvm->mutex);
3939 return ret;
3940}
3941
33cef925
JB		 3942static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3943 struct ieee80211_vif *vif,
3944 struct ieee80211_sta *sta,
3945 struct station_info *sinfo)
3946{
3947 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3948 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3949 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3950
859d914c
JB		 3951 if (fw_has_capa(&mvm->fw->ucode_capa,
3952 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3953 return;
3954
3955 /* if beacon filtering isn't on mac80211 does it anyway */
3956 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3957 return;
3958
3959 if (!vif->bss_conf.assoc)
3960 return;
3961
3962 mutex_lock(&mvm->mutex);
3963
3964 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3965 goto unlock;
3966
3967 if (iwl_mvm_request_statistics(mvm, false))
3968 goto unlock;
3969
3970 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3971 mvmvif->beacon_stats.accu_num_beacons;
3972 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3973 if (mvmvif->beacon_stats.avg_signal) {
3974 /* firmware only reports a value after RXing a few beacons */
3975 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3976 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3977 }
3978 unlock:
3979 mutex_unlock(&mvm->mutex);
3980}
3981
4203263d
EG		 3982static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3983 struct ieee80211_vif *vif,
3984 const struct ieee80211_event *event)
d42f5350 3985{
5d4f929e 3986#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3987 do { \
3988 if ((_cnt) && --(_cnt)) \
3989 break; \
5d4f929e 3990 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3991 } while (0)
3992
d42f5350
EG		 3993 struct iwl_fw_dbg_trigger_tlv *trig;
3994 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3995
3996 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3997 return;
3998
d42f5350
EG		 3999 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4000 trig_mlme = (void *)trig->data;
4001 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4002 return;
4003
d42f5350
EG		 4004 if (event->u.mlme.data == ASSOC_EVENT) {
4005 if (event->u.mlme.status == MLME_DENIED)
4006 CHECK_MLME_TRIGGER(mvm, trig, buf,
4007 trig_mlme->stop_assoc_denied,
4008 "DENIED ASSOC: reason %d",
4009 event->u.mlme.reason);
4010 else if (event->u.mlme.status == MLME_TIMEOUT)
4011 CHECK_MLME_TRIGGER(mvm, trig, buf,
4012 trig_mlme->stop_assoc_timeout,
4013 "ASSOC TIMEOUT");
4014 } else if (event->u.mlme.data == AUTH_EVENT) {
4015 if (event->u.mlme.status == MLME_DENIED)
4016 CHECK_MLME_TRIGGER(mvm, trig, buf,
4017 trig_mlme->stop_auth_denied,
4018 "DENIED AUTH: reason %d",
4019 event->u.mlme.reason);
4020 else if (event->u.mlme.status == MLME_TIMEOUT)
4021 CHECK_MLME_TRIGGER(mvm, trig, buf,
4022 trig_mlme->stop_auth_timeout,
4023 "AUTH TIMEOUT");
4024 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4025 CHECK_MLME_TRIGGER(mvm, trig, buf,
4026 trig_mlme->stop_rx_deauth,
4027 "DEAUTH RX %d", event->u.mlme.reason);
4028 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4029 CHECK_MLME_TRIGGER(mvm, trig, buf,
4030 trig_mlme->stop_tx_deauth,
4031 "DEAUTH TX %d", event->u.mlme.reason);
4032 }
4033#undef CHECK_MLME_TRIGGER
4034}
4035
4203263d
EG		 4036static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4037 struct ieee80211_vif *vif,
4038 const struct ieee80211_event *event)
4039{
4040 struct iwl_fw_dbg_trigger_tlv *trig;
4041 struct iwl_fw_dbg_trigger_ba *ba_trig;
4042
4043 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4044 return;
4045
4046 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4047 ba_trig = (void *)trig->data;
4048 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4049 return;
4050
4051 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4052 return;
4053
4054 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4055 "BAR received from %pM, tid %d, ssn %d",
4056 event->u.ba.sta->addr, event->u.ba.tid,
4057 event->u.ba.ssn);
4058}
4059
4060static void
4061iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4062 struct ieee80211_vif *vif,
4063 const struct ieee80211_event *event)
4064{
4065 struct iwl_fw_dbg_trigger_tlv *trig;
4066 struct iwl_fw_dbg_trigger_ba *ba_trig;
4067
4068 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4069 return;
4070
4071 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4072 ba_trig = (void *)trig->data;
4073 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4074 return;
4075
4076 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4077 return;
4078
4079 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4080 "Frame from %pM timed out, tid %d",
4081 event->u.ba.sta->addr, event->u.ba.tid);
4082}
4083
4084static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4085 struct ieee80211_vif *vif,
4086 const struct ieee80211_event *event)
4087{
4088 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4089
4090 switch (event->type) {
4091 case MLME_EVENT:
4092 iwl_mvm_event_mlme_callback(mvm, vif, event);
4093 break;
4094 case BAR_RX_EVENT:
4095 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4096 break;
4097 case BA_FRAME_TIMEOUT:
4098 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4099 break;
4100 default:
4101 break;
4102 }
4103}
4104
e5209263 4105const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4106 .tx = iwl_mvm_mac_tx,
4107 .ampdu_action = iwl_mvm_mac_ampdu_action,
4108 .start = iwl_mvm_mac_start,
cf2c92d8 4109 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4110 .stop = iwl_mvm_mac_stop,
4111 .add_interface = iwl_mvm_mac_add_interface,
4112 .remove_interface = iwl_mvm_mac_remove_interface,
4113 .config = iwl_mvm_mac_config,
e59647ea 4114 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4115 .configure_filter = iwl_mvm_configure_filter,
4116 .bss_info_changed = iwl_mvm_bss_info_changed,
4117 .hw_scan = iwl_mvm_mac_hw_scan,
4118 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4119 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4120 .sta_state = iwl_mvm_mac_sta_state,
4121 .sta_notify = iwl_mvm_mac_sta_notify,
4122 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4123 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4124 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4125 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4126 .conf_tx = iwl_mvm_mac_conf_tx,
4127 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4128 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4129 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4130 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4131 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4132 .set_key = iwl_mvm_mac_set_key,
4133 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4134 .remain_on_channel = iwl_mvm_roc,
4135 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4136 .add_chanctx = iwl_mvm_add_chanctx,
4137 .remove_chanctx = iwl_mvm_remove_chanctx,
4138 .change_chanctx = iwl_mvm_change_chanctx,
4139 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4140 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4141 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4142
5023d966
JB		 4143 .start_ap = iwl_mvm_start_ap_ibss,
4144 .stop_ap = iwl_mvm_stop_ap_ibss,
4145 .join_ibss = iwl_mvm_start_ap_ibss,
4146 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4147
4148 .set_tim = iwl_mvm_set_tim,
4149
622e3f9b 4150 .channel_switch = iwl_mvm_channel_switch,
f028905c 4151 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4152 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4153
1d3c3f63
AN		 4154 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4155 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4156 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4157
d42f5350
EG		 4158 .event_callback = iwl_mvm_mac_event_callback,
4159
507cadf2
DS		 4160 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4161
8ca151b5
JB		 4162#ifdef CONFIG_PM_SLEEP
4163 /* look at d3.c */
4164 .suspend = iwl_mvm_suspend,
4165 .resume = iwl_mvm_resume,
4166 .set_wakeup = iwl_mvm_set_wakeup,
4167 .set_rekey_data = iwl_mvm_set_rekey_data,
4168#if IS_ENABLED(CONFIG_IPV6)
4169 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4170#endif
4171 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4172#endif
91a8bcde 4173 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4174 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4175};
Linux kernel - Deliverables
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