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iwlwifi: mvm: use build-time assertion for fw trigger ID
[thirdparty/linux.git] / drivers / net / wireless / intel / iwlwifi / mvm / mac80211.c
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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;
cd55ccea
AS		 575 hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
576 hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
577
578 /*
579 * the firmware uses u8 for num of iterations, but 0xff is saved for
580 * infinite loop, so the maximum number of iterations is actually 254.
581 */
582 hw->wiphy->max_sched_scan_plan_iterations = 254;
35a000b7 583
8ca151b5 584 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 585 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 586 NL80211_FEATURE_P2P_GO_OPPPS |
587 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 588 NL80211_FEATURE_STATIC_SMPS |
589 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 590
859d914c
JB		 591 if (fw_has_capa(&mvm->fw->ucode_capa,
592 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 593 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 594 if (fw_has_capa(&mvm->fw->ucode_capa,
595 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 596 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 597
859d914c
JB		 598 if (fw_has_capa(&mvm->fw->ucode_capa,
599 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 600 hw->wiphy->features |=
601 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
602
859d914c
JB		 603 if (fw_has_capa(&mvm->fw->ucode_capa,
604 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 605 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
606
8ca151b5
JB		 607 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
608
609#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 610 if (iwl_mvm_is_d0i3_supported(mvm) &&
611 device_can_wakeup(mvm->trans->dev)) {
612 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
613 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 614 }
615
616 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 617 mvm->trans->ops->d3_suspend &&
618 mvm->trans->ops->d3_resume &&
619 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 620 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
621 WIPHY_WOWLAN_DISCONNECT |
622 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
623 WIPHY_WOWLAN_RFKILL_RELEASE |
624 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 625 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 626 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
627 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
628 WIPHY_WOWLAN_4WAY_HANDSHAKE;
629
630 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
631 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
632 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 633 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 634 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
635 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 636 }
637#endif
638
77736923
EP		 639#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
640 /* assign default bcast filtering configuration */
641 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
642#endif
643
8ca151b5
JB		 644 ret = iwl_mvm_leds_init(mvm);
645 if (ret)
646 return ret;
647
859d914c
JB		 648 if (fw_has_capa(&mvm->fw->ucode_capa,
649 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 650 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
651 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
7c4f0843 652 ieee80211_hw_set(hw, TDLS_WIDER_BW);
d8f1c515
AN		 653 }
654
859d914c
JB		 655 if (fw_has_capa(&mvm->fw->ucode_capa,
656 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 657 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
658 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
659 }
660
93190fb0
AA		 661 hw->netdev_features |= mvm->cfg->features;
662 if (!iwl_mvm_is_csum_supported(mvm))
663 hw->netdev_features &= ~NETIF_F_RXCSUM;
664
b7327d89
EG		 665 ret = ieee80211_register_hw(mvm->hw);
666 if (ret)
667 iwl_mvm_leds_exit(mvm);
668
669 return ret;
8ca151b5
JB		 670}
671
b2492501
AN		 672static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
673 struct ieee80211_sta *sta,
674 struct sk_buff *skb)
675{
676 struct iwl_mvm_sta *mvmsta;
677 bool defer = false;
678
679 /*
680 * double check the IN_D0I3 flag both before and after
681 * taking the spinlock, in order to prevent taking
682 * the spinlock when not needed.
683 */
684 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
685 return false;
686
687 spin_lock(&mvm->d0i3_tx_lock);
688 /*
689 * testing the flag again ensures the skb dequeue
690 * loop (on d0i3 exit) hasn't run yet.
691 */
692 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
693 goto out;
694
695 mvmsta = iwl_mvm_sta_from_mac80211(sta);
696 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
697 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
698 goto out;
699
700 __skb_queue_tail(&mvm->d0i3_tx, skb);
701 ieee80211_stop_queues(mvm->hw);
702
703 /* trigger wakeup */
704 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
705 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
706
707 defer = true;
708out:
709 spin_unlock(&mvm->d0i3_tx_lock);
710 return defer;
711}
712
8ca151b5
JB		 713static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
714 struct ieee80211_tx_control *control,
715 struct sk_buff *skb)
716{
717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 718 struct ieee80211_sta *sta = control->sta;
719 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
720 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 721
9ee718aa
EL		 722 if (iwl_mvm_is_radio_killed(mvm)) {
723 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 724 goto drop;
725 }
726
398e8c6c 727 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 728 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
729 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 730 goto drop;
731
3e56eadf
JB		 732 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
733 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
734 ieee80211_is_mgmt(hdr->frame_control) &&
735 !ieee80211_is_deauth(hdr->frame_control) &&
736 !ieee80211_is_disassoc(hdr->frame_control) &&
737 !ieee80211_is_action(hdr->frame_control)))
738 sta = NULL;
739
740 if (sta) {
b2492501
AN		 741 if (iwl_mvm_defer_tx(mvm, sta, skb))
742 return;
3e56eadf 743 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 744 goto drop;
745 return;
746 }
747
748 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
749 goto drop;
750 return;
751 drop:
752 ieee80211_free_txskb(hw, skb);
753}
754
205e2210
EG		 755static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
756{
757 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
758 return false;
759 return true;
760}
761
762static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
763{
764 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
765 return false;
766 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
767 return true;
768
769 /* enabled by default */
770 return true;
771}
772
4203263d
EG		 773#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
774 do { \
775 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
776 break; \
777 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
778 } while (0)
779
780static void
781iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
782 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
783 enum ieee80211_ampdu_mlme_action action)
784{
785 struct iwl_fw_dbg_trigger_tlv *trig;
786 struct iwl_fw_dbg_trigger_ba *ba_trig;
787
788 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
789 return;
790
791 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
792 ba_trig = (void *)trig->data;
793
794 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
795 return;
796
797 switch (action) {
798 case IEEE80211_AMPDU_TX_OPERATIONAL: {
799 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
800 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
801
802 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
803 "TX AGG START: MAC %pM tid %d ssn %d\n",
804 sta->addr, tid, tid_data->ssn);
805 break;
806 }
807 case IEEE80211_AMPDU_TX_STOP_CONT:
808 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
809 "TX AGG STOP: MAC %pM tid %d\n",
810 sta->addr, tid);
811 break;
812 case IEEE80211_AMPDU_RX_START:
813 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
814 "RX AGG START: MAC %pM tid %d ssn %d\n",
815 sta->addr, tid, rx_ba_ssn);
816 break;
817 case IEEE80211_AMPDU_RX_STOP:
818 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
819 "RX AGG STOP: MAC %pM tid %d\n",
820 sta->addr, tid);
821 break;
822 default:
823 break;
824 }
825}
826
8ca151b5
JB		 827static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
828 struct ieee80211_vif *vif,
829 enum ieee80211_ampdu_mlme_action action,
830 struct ieee80211_sta *sta, u16 tid,
e3abc8ff 831 u16 *ssn, u8 buf_size, bool amsdu)
8ca151b5
JB		 832{
833 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
834 int ret;
b2492501 835 bool tx_agg_ref = false;
8ca151b5
JB		 836
837 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
838 sta->addr, tid, action);
839
840 if (!(mvm->nvm_data->sku_cap_11n_enable))
841 return -EACCES;
842
b2492501 843 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 844 switch (action) {
845 case IEEE80211_AMPDU_TX_START:
846 case IEEE80211_AMPDU_TX_STOP_CONT:
847 case IEEE80211_AMPDU_TX_STOP_FLUSH:
848 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
849 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 850 /*
9256c205
EP		 851 * for tx start, wait synchronously until D0i3 exit to
852 * get the correct sequence number for the tid.
853 * additionally, some other ampdu actions use direct
854 * target access, which is not handled automatically
855 * by the trans layer (unlike commands), so wait for
856 * d0i3 exit in these cases as well.
b2492501 857 */
d40fc489
GG		 858 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
859 if (ret)
860 return ret;
861
862 tx_agg_ref = true;
9256c205
EP		 863 break;
864 default:
865 break;
b2492501
AN		 866 }
867
8ca151b5
JB		 868 mutex_lock(&mvm->mutex);
869
870 switch (action) {
871 case IEEE80211_AMPDU_RX_START:
205e2210 872 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 873 ret = -EINVAL;
874 break;
875 }
876 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
877 break;
878 case IEEE80211_AMPDU_RX_STOP:
879 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
880 break;
881 case IEEE80211_AMPDU_TX_START:
205e2210 882 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 883 ret = -EINVAL;
884 break;
885 }
8ca151b5
JB		 886 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
887 break;
888 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 889 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
890 break;
8ca151b5
JB		 891 case IEEE80211_AMPDU_TX_STOP_FLUSH:
892 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 893 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 894 break;
895 case IEEE80211_AMPDU_TX_OPERATIONAL:
896 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
897 break;
898 default:
899 WARN_ON_ONCE(1);
900 ret = -EINVAL;
901 break;
902 }
4203263d
EG		 903
904 if (!ret) {
905 u16 rx_ba_ssn = 0;
906
907 if (action == IEEE80211_AMPDU_RX_START)
908 rx_ba_ssn = *ssn;
909
910 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
911 rx_ba_ssn, action);
912 }
8ca151b5
JB		 913 mutex_unlock(&mvm->mutex);
914
b2492501
AN		 915 /*
916 * If the tid is marked as started, we won't use it for offloaded
917 * traffic on the next D0i3 entry. It's safe to unref.
918 */
919 if (tx_agg_ref)
920 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
921
8ca151b5
JB		 922 return ret;
923}
924
925static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
926 struct ieee80211_vif *vif)
927{
928 struct iwl_mvm *mvm = data;
929 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
930
931 mvmvif->uploaded = false;
932 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
933
8ca151b5
JB		 934 spin_lock_bh(&mvm->time_event_lock);
935 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
936 spin_unlock_bh(&mvm->time_event_lock);
937
fe0f2de3 938 mvmvif->phy_ctxt = NULL;
8a275bad 939 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 940}
941
aadede6e
JB		 942static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
943 const void *data, size_t datalen)
944{
945 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
946 ssize_t bytes_read;
947 ssize_t bytes_read_trans;
948
949 if (offset < dump_ptrs->op_mode_len) {
950 bytes_read = min_t(ssize_t, count,
951 dump_ptrs->op_mode_len - offset);
952 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
953 bytes_read);
954 offset += bytes_read;
955 count -= bytes_read;
956
957 if (count == 0)
958 return bytes_read;
959 } else {
960 bytes_read = 0;
961 }
962
963 if (!dump_ptrs->trans_ptr)
964 return bytes_read;
965
966 offset -= dump_ptrs->op_mode_len;
967 bytes_read_trans = min_t(ssize_t, count,
968 dump_ptrs->trans_ptr->len - offset);
969 memcpy(buffer + bytes_read,
970 (u8 *)dump_ptrs->trans_ptr->data + offset,
971 bytes_read_trans);
972
973 return bytes_read + bytes_read_trans;
974}
975
976static void iwl_mvm_free_coredump(const void *data)
977{
978 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
979
980 vfree(fw_error_dump->op_mode_ptr);
981 vfree(fw_error_dump->trans_ptr);
982 kfree(fw_error_dump);
983}
984
04fd2c28
LK		 985static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
986 struct iwl_fw_error_dump_data **dump_data)
987{
988 struct iwl_fw_error_dump_fifo *fifo_hdr;
989 u32 *fifo_data;
990 u32 fifo_len;
991 unsigned long flags;
992 int i, j;
993
994 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
995 return;
996
997 /* Pull RXF data from all RXFs */
998 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
999 /*
1000 * Keep aside the additional offset that might be needed for
1001 * next RXF
1002 */
1003 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
1004
1005 fifo_hdr = (void *)(*dump_data)->data;
1006 fifo_data = (void *)fifo_hdr->data;
1007 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
1008
1009 /* No need to try to read the data if the length is 0 */
1010 if (fifo_len == 0)
1011 continue;
1012
1013 /* Add a TLV for the RXF */
1014 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
1015 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1016
1017 fifo_hdr->fifo_num = cpu_to_le32(i);
1018 fifo_hdr->available_bytes =
1019 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1020 RXF_RD_D_SPACE +
1021 offset_diff));
1022 fifo_hdr->wr_ptr =
1023 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1024 RXF_RD_WR_PTR +
1025 offset_diff));
1026 fifo_hdr->rd_ptr =
1027 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1028 RXF_RD_RD_PTR +
1029 offset_diff));
1030 fifo_hdr->fence_ptr =
1031 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1032 RXF_RD_FENCE_PTR +
1033 offset_diff));
1034 fifo_hdr->fence_mode =
1035 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1036 RXF_SET_FENCE_MODE +
1037 offset_diff));
1038
1039 /* Lock fence */
1040 iwl_trans_write_prph(mvm->trans,
1041 RXF_SET_FENCE_MODE + offset_diff, 0x1);
1042 /* Set fence pointer to the same place like WR pointer */
1043 iwl_trans_write_prph(mvm->trans,
1044 RXF_LD_WR2FENCE + offset_diff, 0x1);
1045 /* Set fence offset */
1046 iwl_trans_write_prph(mvm->trans,
1047 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
1048 0x0);
1049
1050 /* Read FIFO */
1051 fifo_len /= sizeof(u32); /* Size in DWORDS */
1052 for (j = 0; j < fifo_len; j++)
1053 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1054 RXF_FIFO_RD_FENCE_INC +
1055 offset_diff);
1056 *dump_data = iwl_fw_error_next_data(*dump_data);
1057 }
1058
1059 /* Pull TXF data from all TXFs */
1060 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
1061 /* Mark the number of TXF we're pulling now */
1062 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
1063
1064 fifo_hdr = (void *)(*dump_data)->data;
1065 fifo_data = (void *)fifo_hdr->data;
1066 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
1067
1068 /* No need to try to read the data if the length is 0 */
1069 if (fifo_len == 0)
1070 continue;
1071
1072 /* Add a TLV for the FIFO */
1073 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
1074 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1075
1076 fifo_hdr->fifo_num = cpu_to_le32(i);
1077 fifo_hdr->available_bytes =
1078 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1079 TXF_FIFO_ITEM_CNT));
1080 fifo_hdr->wr_ptr =
1081 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1082 TXF_WR_PTR));
1083 fifo_hdr->rd_ptr =
1084 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1085 TXF_RD_PTR));
1086 fifo_hdr->fence_ptr =
1087 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1088 TXF_FENCE_PTR));
1089 fifo_hdr->fence_mode =
1090 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1091 TXF_LOCK_FENCE));
1092
1093 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1094 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
1095 TXF_WR_PTR);
1096
1097 /* Dummy-read to advance the read pointer to the head */
1098 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1099
1100 /* Read FIFO */
1101 fifo_len /= sizeof(u32); /* Size in DWORDS */
1102 for (j = 0; j < fifo_len; j++)
1103 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1104 TXF_READ_MODIFY_DATA);
1105 *dump_data = iwl_fw_error_next_data(*dump_data);
1106 }
1107
1108 iwl_trans_release_nic_access(mvm->trans, &flags);
1109}
1110
b6eaa45a
EG		 1111void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1112{
1113 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1114 !mvm->fw_dump_desc)
1115 return;
1116
1117 kfree(mvm->fw_dump_desc);
1118 mvm->fw_dump_desc = NULL;
1119}
1120
e539761d
LK		 1121#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1122#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1123
4bfa47f3 1124void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1125{
1126 struct iwl_fw_error_dump_file *dump_file;
1127 struct iwl_fw_error_dump_data *dump_data;
1128 struct iwl_fw_error_dump_info *dump_info;
a549b296 1129 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1130 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1131 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1132 u32 sram_len, sram_ofs;
04fd2c28 1133 u32 file_len, fifo_data_len = 0;
addfaada 1134 u32 smem_len = mvm->cfg->smem_len;
86138324 1135 u32 sram2_len = mvm->cfg->dccm2_len;
36fb9017 1136 bool monitor_dump_only = false;
655e6d6d
EG		 1137
1138 lockdep_assert_held(&mvm->mutex);
1139
053225de
EP		 1140 /* there's no point in fw dump if the bus is dead */
1141 if (test_bit(STATUS_TRANS_DEAD, &mvm->trans->status)) {
1142 IWL_ERR(mvm, "Skip fw error dump since bus is dead\n");
1143 return;
1144 }
1145
36fb9017
OG		 1146 if (mvm->fw_dump_trig &&
1147 mvm->fw_dump_trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)
1148 monitor_dump_only = true;
1149
aadede6e 1150 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1151 if (!fw_error_dump)
1152 return;
1153
f53bf4c7
LK		 1154 /* SRAM - include stack CCM if driver knows the values for it */
1155 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1156 const struct fw_img *img;
1157
1158 img = &mvm->fw->img[mvm->cur_ucode];
1159 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1160 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1161 } else {
1162 sram_ofs = mvm->cfg->dccm_offset;
1163 sram_len = mvm->cfg->dccm_len;
1164 }
655e6d6d 1165
04fd2c28
LK		 1166 /* reading RXF/TXF sizes */
1167 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1168 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1169 int i;
1170
1171 fifo_data_len = 0;
1172
1173 /* Count RXF size */
1174 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1175 if (!mem_cfg->rxfifo_size[i])
1176 continue;
1177
1178 /* Add header info */
1179 fifo_data_len += mem_cfg->rxfifo_size[i] +
1180 sizeof(*dump_data) +
1181 sizeof(struct iwl_fw_error_dump_fifo);
1182 }
1183
1184 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1185 if (!mem_cfg->txfifo_size[i])
1186 continue;
655e6d6d 1187
04fd2c28
LK		 1188 /* Add header info */
1189 fifo_data_len += mem_cfg->txfifo_size[i] +
1190 sizeof(*dump_data) +
1191 sizeof(struct iwl_fw_error_dump_fifo);
1192 }
1193 }
655e6d6d
EG		 1194
1195 file_len = sizeof(*dump_file) +
04fd2c28 1196 sizeof(*dump_data) * 2 +
a549b296 1197 sram_len + sizeof(*dump_mem) +
04fd2c28 1198 fifo_data_len +
655e6d6d
EG		 1199 sizeof(*dump_info);
1200
36fb9017
OG		 1201 /* Make room for the SMEM, if it exists */
1202 if (smem_len)
1203 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
1204
1205 /* Make room for the secondary SRAM, if it exists */
1206 if (sram2_len)
1207 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1208
f0afea54
MG		 1209 /* Make room for fw's virtual image pages, if it exists */
1210 if (mvm->fw->img[mvm->cur_ucode].paging_mem_size)
1211 file_len += mvm->num_of_paging_blk *
1212 (sizeof(*dump_data) +
1213 sizeof(struct iwl_fw_error_dump_paging) +
1214 PAGING_BLOCK_SIZE);
1215
36fb9017
OG		 1216 /* If we only want a monitor dump, reset the file length */
1217 if (monitor_dump_only) {
1218 file_len = sizeof(*dump_file) + sizeof(*dump_data) +
1219 sizeof(*dump_info);
1220 }
1221
e539761d
LK		 1222 /*
1223 * In 8000 HW family B-step include the ICCM (which resides separately)
1224 */
1225 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1226 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1227 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1228 IWL8260_ICCM_LEN;
1229
b6eaa45a
EG		 1230 if (mvm->fw_dump_desc)
1231 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1232 mvm->fw_dump_desc->len;
1233
5bfe6f53 1234 dump_file = vzalloc(file_len);
48eb7b34
EG		 1235 if (!dump_file) {
1236 kfree(fw_error_dump);
b6eaa45a 1237 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1238 return;
48eb7b34 1239 }
655e6d6d 1240
48eb7b34 1241 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1242
1243 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1244 dump_data = (void *)dump_file->data;
1245
1246 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1247 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1248 dump_info = (void *) dump_data->data;
1249 dump_info->device_family =
1250 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1251 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1252 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1253 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1254 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1255 sizeof(dump_info->fw_human_readable));
1256 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1257 sizeof(dump_info->dev_human_readable));
1258 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1259 sizeof(dump_info->bus_human_readable));
1260
1261 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1262 /* We only dump the FIFOs if the FW is in error state */
1263 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1264 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1265
b6eaa45a
EG		 1266 if (mvm->fw_dump_desc) {
1267 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1268 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1269 mvm->fw_dump_desc->len);
1270 dump_trig = (void *)dump_data->data;
1271 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1272 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1273
1274 /* now we can free this copy */
1275 iwl_mvm_free_fw_dump_desc(mvm);
1276 dump_data = iwl_fw_error_next_data(dump_data);
1277 }
1278
36fb9017
OG		 1279 /* In case we only want monitor dump, skip to dump trasport data */
1280 if (monitor_dump_only)
1281 goto dump_trans_data;
1282
a549b296
EG		 1283 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1284 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1285 dump_mem = (void *)dump_data->data;
1286 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1287 dump_mem->offset = cpu_to_le32(sram_ofs);
1288 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1289 sram_len);
1290
addfaada
LK		 1291 if (smem_len) {
1292 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1293 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1294 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1295 dump_mem = (void *)dump_data->data;
1296 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1297 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1298 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1299 dump_mem->data, smem_len);
addfaada
LK		 1300 }
1301
86138324
IY		 1302 if (sram2_len) {
1303 dump_data = iwl_fw_error_next_data(dump_data);
1304 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1305 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1306 dump_mem = (void *)dump_data->data;
1307 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1308 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1309 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1310 dump_mem->data, sram2_len);
1311 }
1312
e539761d
LK		 1313 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1314 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1315 dump_data = iwl_fw_error_next_data(dump_data);
1316 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1317 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1318 sizeof(*dump_mem));
1319 dump_mem = (void *)dump_data->data;
1320 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1321 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1322 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1323 dump_mem->data, IWL8260_ICCM_LEN);
1324 }
1325
f0afea54
MG		 1326 /* Dump fw's virtual image */
1327 if (mvm->fw->img[mvm->cur_ucode].paging_mem_size) {
1328 u32 i;
1329
1330 for (i = 1; i < mvm->num_of_paging_blk + 1; i++) {
1331 struct iwl_fw_error_dump_paging *paging;
1332 struct page *pages =
1333 mvm->fw_paging_db[i].fw_paging_block;
1334
1335 dump_data = iwl_fw_error_next_data(dump_data);
1336 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_PAGING);
1337 dump_data->len = cpu_to_le32(sizeof(*paging) +
1338 PAGING_BLOCK_SIZE);
1339 paging = (void *)dump_data->data;
1340 paging->index = cpu_to_le32(i);
1341 memcpy(paging->data, page_address(pages),
1342 PAGING_BLOCK_SIZE);
1343 }
1344 }
1345
36fb9017
OG		 1346dump_trans_data:
1347 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans,
1348 mvm->fw_dump_trig);
48eb7b34
EG		 1349 fw_error_dump->op_mode_len = file_len;
1350 if (fw_error_dump->trans_ptr)
1351 file_len += fw_error_dump->trans_ptr->len;
1352 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1353
aadede6e
JB		 1354 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1355 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7 1356
36fb9017 1357 mvm->fw_dump_trig = NULL;
d2709ad7 1358 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1359}
655e6d6d 1360
b6eaa45a
EG		 1361struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1362 .trig_desc = {
1363 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1364 },
1365};
1366
8ca151b5
JB		 1367static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1368{
58629d9d
JB		 1369 /* clear the D3 reconfig, we only need it to avoid dumping a
1370 * firmware coredump on reconfiguration, we shouldn't do that
1371 * on D3->D0 transition
1372 */
b6eaa45a
EG		 1373 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1374 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1375 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1376 }
1bd3cbc1 1377
744cb695
EP		 1378 /* cleanup all stale references (scan, roc), but keep the
1379 * ucode_down ref until reconfig is complete
1380 */
1381 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1382
8ca151b5 1383 iwl_trans_stop_device(mvm->trans);
8ca151b5 1384
9af91f46 1385 mvm->scan_status = 0;
b1873300 1386 mvm->ps_disabled = false;
31b8b343 1387 mvm->calibrating = false;
8ca151b5
JB		 1388
1389 /* just in case one was running */
1390 ieee80211_remain_on_channel_expired(mvm->hw);
1391
737719fe
AN		 1392 /*
1393 * cleanup all interfaces, even inactive ones, as some might have
1394 * gone down during the HW restart
1395 */
1396 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1397
fe0f2de3 1398 mvm->p2p_device_vif = NULL;
37577fe2 1399 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1400
1401 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1402 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1403 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1404 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1405 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1406 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1407 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1408 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1409 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1410
1411 ieee80211_wake_queues(mvm->hw);
1412
228670b2
EP		 1413 /* clear any stale d0i3 state */
1414 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1415
8ca151b5 1416 mvm->vif_count = 0;
113a0447 1417 mvm->rx_ba_sessions = 0;
d2709ad7 1418 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1419
1420 /* keep statistics ticking */
1421 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1422}
1423
a0a09243 1424int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1425{
8ca151b5
JB		 1426 int ret;
1427
a0a09243 1428 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1429
1430 /* Clean up some internal and mac80211 state on restart */
1431 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1432 iwl_mvm_restart_cleanup(mvm);
1433
1434 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1435
1436 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1437 /* Something went wrong - we need to finish some cleanup
1438 * that normally iwl_mvm_mac_restart_complete() below
1439 * would do.
1440 */
1441 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1442 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1443 }
1444
a0a09243
LC		 1445 return ret;
1446}
1447
1448static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1449{
1450 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1451 int ret;
1452
37948fcf
EP		 1453 /* Some hw restart cleanups must not hold the mutex */
1454 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1455 /*
1456 * Make sure we are out of d0i3. This is needed
1457 * to make sure the reference accounting is correct
1458 * (and there is no stale d0i3_exit_work).
1459 */
1460 wait_event_timeout(mvm->d0i3_exit_waitq,
1461 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1462 &mvm->status),
1463 HZ);
1464 }
1465
a0a09243
LC		 1466 mutex_lock(&mvm->mutex);
1467 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1468 mutex_unlock(&mvm->mutex);
1469
1470 return ret;
1471}
1472
cf2c92d8 1473static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1474{
8ca151b5
JB		 1475 int ret;
1476
1477 mutex_lock(&mvm->mutex);
1478
1479 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1480 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1481 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1482 if (ret)
1483 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1484 ret);
1485
7498cf4c
EP		 1486 /* allow transport/FW low power modes */
1487 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1488
cbd2ae2d
AN		 1489 /*
1490 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1491 * of packets the FW sent out, so we must reconnect.
1492 */
1493 iwl_mvm_teardown_tdls_peers(mvm);
1494
8ca151b5
JB		 1495 mutex_unlock(&mvm->mutex);
1496}
1497
088070a2
EP		 1498static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1499{
088070a2
EP		 1500 if (!iwl_mvm_is_d0i3_supported(mvm))
1501 return;
1502
6735943f
EP		 1503 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1504 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1505 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1506 &mvm->status),
1507 HZ))
1508 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1509}
1510
cf2c92d8
EP		 1511static void
1512iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1513 enum ieee80211_reconfig_type reconfig_type)
1514{
1515 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1516
1517 switch (reconfig_type) {
1518 case IEEE80211_RECONFIG_TYPE_RESTART:
1519 iwl_mvm_restart_complete(mvm);
1520 break;
1521 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1522 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1523 break;
1524 }
1525}
1526
a0a09243 1527void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1528{
a0a09243 1529 lockdep_assert_held(&mvm->mutex);
7498cf4c 1530
91a8bcde
JB		 1531 /* firmware counters are obviously reset now, but we shouldn't
1532 * partially track so also clear the fw_reset_accu counters.
1533 */
1534 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1535
0a79a0c0
EP		 1536 /*
1537 * Disallow low power states when the FW is down by taking
1538 * the UCODE_DOWN ref. in case of ongoing hw restart the
1539 * ref is already taken, so don't take it again.
1540 */
1541 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1542 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1543
8ca151b5
JB		 1544 /* async_handlers_wk is now blocked */
1545
1546 /*
1547 * The work item could be running or queued if the
1548 * ROC time event stops just as we get here.
1549 */
c779273b 1550 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1551
1552 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1553
1554 iwl_mvm_async_handlers_purge(mvm);
1555 /* async_handlers_list is empty and will stay empty: HW is stopped */
1556
1557 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1558 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1559
0a79a0c0
EP		 1560 /*
1561 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1562 * won't be called in this case).
8b2b9fbf
AN		 1563 * But make sure to cleanup interfaces that have gone down before/during
1564 * HW restart was requested.
0a79a0c0 1565 */
8b2b9fbf
AN		 1566 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1567 ieee80211_iterate_interfaces(mvm->hw, 0,
1568 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1569
963221be
AB		 1570 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1571 * make sure there's nothing left there and warn if any is found.
1572 */
859d914c 1573 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1574 int i;
1575
507e4cda 1576 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1577 if (WARN_ONCE(mvm->scan_uid_status[i],
1578 "UMAC scan UID %d status was not cleaned\n",
1579 i))
1580 mvm->scan_uid_status[i] = 0;
963221be
AB		 1581 }
1582 }
1583
bc44886d 1584 mvm->ucode_loaded = false;
a0a09243 1585}
bc44886d 1586
a0a09243
LC		 1587static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1588{
1589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1590
1591 flush_work(&mvm->d0i3_exit_work);
1592 flush_work(&mvm->async_handlers_wk);
d2709ad7 1593 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1594 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1595
1596 mutex_lock(&mvm->mutex);
1597 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1598 mutex_unlock(&mvm->mutex);
1599
1600 /*
1601 * The worker might have been waiting for the mutex, let it run and
1602 * discover that its list is now empty.
1603 */
1604 cancel_work_sync(&mvm->async_handlers_wk);
1605}
1606
fe0f2de3
IP		 1607static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1608{
1609 u16 i;
1610
1611 lockdep_assert_held(&mvm->mutex);
1612
1613 for (i = 0; i < NUM_PHY_CTX; i++)
1614 if (!mvm->phy_ctxts[i].ref)
1615 return &mvm->phy_ctxts[i];
1616
1617 IWL_ERR(mvm, "No available PHY context\n");
1618 return NULL;
1619}
1620
d44c3fe6
AA		 1621static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1622 s16 tx_power)
1623{
1624 struct iwl_dev_tx_power_cmd cmd = {
da03f029
JB		 1625 .v2.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1626 .v2.mac_context_id =
d44c3fe6 1627 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
da03f029 1628 .v2.pwr_restriction = cpu_to_le16(8 * tx_power),
d44c3fe6 1629 };
da03f029 1630 int len = sizeof(cmd);
d44c3fe6 1631
d44c3fe6 1632 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
da03f029 1633 cmd.v2.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
d44c3fe6 1634
da03f029
JB		 1635 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_CHAIN))
1636 len = sizeof(cmd.v2);
1637
1638 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0, len, &cmd);
d44c3fe6
AA		 1639}
1640
8ca151b5
JB		 1641static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1642 struct ieee80211_vif *vif)
1643{
1644 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1645 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1646 int ret;
1647
aa5e1832
EG		 1648 mvmvif->mvm = mvm;
1649
d40fc489
GG		 1650 /*
1651 * make sure D0i3 exit is completed, otherwise a target access
1652 * during tx queue configuration could be done when still in
1653 * D0i3 state.
1654 */
1655 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1656 if (ret)
1657 return ret;
1658
8ca151b5
JB		 1659 /*
1660 * Not much to do here. The stack will not allow interface
1661 * types or combinations that we didn't advertise, so we
1662 * don't really have to check the types.
1663 */
1664
1665 mutex_lock(&mvm->mutex);
1666
33cef925
JB		 1667 /* make sure that beacon statistics don't go backwards with FW reset */
1668 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1669 mvmvif->beacon_stats.accu_num_beacons +=
1670 mvmvif->beacon_stats.num_beacons;
1671
e89044d7 1672 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1673 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1674 if (ret)
1675 goto out_unlock;
1676
1c2abf72 1677 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1678 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1679 mvm->vif_count++;
ea183d02 1680
8ca151b5
JB		 1681 /*
1682 * The AP binding flow can be done only after the beacon
1683 * template is configured (which happens only in the mac80211
1684 * start_ap() flow), and adding the broadcast station can happen
1685 * only after the binding.
1686 * In addition, since modifying the MAC before adding a bcast
1687 * station is not allowed by the FW, delay the adding of MAC context to
1688 * the point where we can also add the bcast station.
1689 * In short: there's not much we can do at this point, other than
1690 * allocating resources :)
1691 */
5023d966
JB		 1692 if (vif->type == NL80211_IFTYPE_AP ||
1693 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1694 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1695 if (ret) {
1696 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1697 goto out_release;
1698 }
1699
77740cb4 1700 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1701 goto out_unlock;
1702 }
1703
93190fb0
AA		 1704 mvmvif->features |= hw->netdev_features;
1705
8ca151b5
JB		 1706 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1707 if (ret)
1708 goto out_release;
1709
999609f1 1710 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1711 if (ret)
fd66fc1c 1712 goto out_remove_mac;
8ca151b5 1713
7df15b1e 1714 /* beacon filtering */
a1022927 1715 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1716 if (ret)
1717 goto out_remove_mac;
1718
7df15b1e 1719 if (!mvm->bf_allowed_vif &&
73e5f2c5 1720 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1721 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1722 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1723 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1724 }
1725
8ca151b5
JB		 1726 /*
1727 * P2P_DEVICE interface does not have a channel context assigned to it,
1728 * so a dedicated PHY context is allocated to it and the corresponding
1729 * MAC context is bound to it at this stage.
1730 */
1731 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1732
fe0f2de3
IP		 1733 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1734 if (!mvmvif->phy_ctxt) {
1735 ret = -ENOSPC;
bd3351ba 1736 goto out_free_bf;
fe0f2de3 1737 }
8ca151b5 1738
53a9d61e 1739 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1740 ret = iwl_mvm_binding_add_vif(mvm, vif);
1741 if (ret)
53a9d61e 1742 goto out_unref_phy;
8ca151b5 1743
013290aa 1744 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1745 if (ret)
1746 goto out_unbind;
1747
1748 /* Save a pointer to p2p device vif, so it can later be used to
1749 * update the p2p device MAC when a GO is started/stopped */
1750 mvm->p2p_device_vif = vif;
1751 }
1752
63494374 1753 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1754 goto out_unlock;
1755
1756 out_unbind:
1757 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1758 out_unref_phy:
fe0f2de3 1759 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1760 out_free_bf:
1761 if (mvm->bf_allowed_vif == mvmvif) {
1762 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1763 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1764 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1765 }
8ca151b5
JB		 1766 out_remove_mac:
1767 mvmvif->phy_ctxt = NULL;
1768 iwl_mvm_mac_ctxt_remove(mvm, vif);
1769 out_release:
5ee2b215
AB		 1770 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1771 mvm->vif_count--;
1c2abf72 1772
8ca151b5
JB		 1773 iwl_mvm_mac_ctxt_release(mvm, vif);
1774 out_unlock:
1775 mutex_unlock(&mvm->mutex);
1776
d40fc489
GG		 1777 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1778
8ca151b5
JB		 1779 return ret;
1780}
1781
38a12b5b
JB		 1782static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1783 struct ieee80211_vif *vif)
8ca151b5 1784{
d92b732e 1785 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1786
1787 if (tfd_msk) {
fe92e32a
EG		 1788 /*
1789 * mac80211 first removes all the stations of the vif and
1790 * then removes the vif. When it removes a station it also
1791 * flushes the AMPDU session. So by now, all the AMPDU sessions
1792 * of all the stations of this vif are closed, and the queues
1793 * of these AMPDU sessions are properly closed.
1794 * We still need to take care of the shared queues of the vif.
1795 * Flush them here.
1796 */
8ca151b5 1797 mutex_lock(&mvm->mutex);
5888a40c 1798 iwl_mvm_flush_tx_path(mvm, tfd_msk, 0);
8ca151b5 1799 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1800
1801 /*
1802 * There are transports that buffer a few frames in the host.
1803 * For these, the flush above isn't enough since while we were
1804 * flushing, the transport might have sent more frames to the
1805 * device. To solve this, wait here until the transport is
1806 * empty. Technically, this could have replaced the flush
1807 * above, but flush is much faster than draining. So flush
1808 * first, and drain to make sure we have no frames in the
1809 * transport anymore.
1810 * If a station still had frames on the shared queues, it is
1811 * already marked as draining, so to complete the draining, we
1812 * just need to wait until the transport is empty.
1813 */
1814 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1815 }
1816
1817 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1818 /*
1819 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1820 * We assume here that all the packets sent to the OFFCHANNEL
1821 * queue are sent in ROC session.
1822 */
1823 flush_work(&mvm->roc_done_wk);
1824 } else {
1825 /*
1826 * By now, all the AC queues are empty. The AGG queues are
1827 * empty too. We already got all the Tx responses for all the
1828 * packets in the queues. The drain work can have been
0742a75a 1829 * triggered. Flush it.
8ca151b5
JB		 1830 */
1831 flush_work(&mvm->sta_drained_wk);
1832 }
38a12b5b
JB		 1833}
1834
1835static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1836 struct ieee80211_vif *vif)
1837{
1838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1839 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1840
1841 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1842
1843 mutex_lock(&mvm->mutex);
1844
7df15b1e
HG		 1845 if (mvm->bf_allowed_vif == mvmvif) {
1846 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1847 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1848 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1849 }
1850
63494374
JB		 1851 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1852
8ca151b5
JB		 1853 /*
1854 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1855 * interface is be handled as part of the stop_ap flow.
8ca151b5 1856 */
5023d966
JB		 1857 if (vif->type == NL80211_IFTYPE_AP ||
1858 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1859#ifdef CONFIG_NL80211_TESTMODE
1860 if (vif == mvm->noa_vif) {
1861 mvm->noa_vif = NULL;
1862 mvm->noa_duration = 0;
1863 }
1864#endif
013290aa 1865 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1866 goto out_release;
1867 }
1868
1869 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1870 mvm->p2p_device_vif = NULL;
013290aa 1871 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1872 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1873 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1874 mvmvif->phy_ctxt = NULL;
1875 }
1876
5ee2b215 1877 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1878 mvm->vif_count--;
1c2abf72 1879
999609f1 1880 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1881 iwl_mvm_mac_ctxt_remove(mvm, vif);
1882
1883out_release:
1884 iwl_mvm_mac_ctxt_release(mvm, vif);
1885 mutex_unlock(&mvm->mutex);
1886}
1887
1888static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1889{
8ca151b5
JB		 1890 return 0;
1891}
1892
e59647ea
EP		 1893struct iwl_mvm_mc_iter_data {
1894 struct iwl_mvm *mvm;
1895 int port_id;
1896};
1897
1898static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1899 struct ieee80211_vif *vif)
1900{
1901 struct iwl_mvm_mc_iter_data *data = _data;
1902 struct iwl_mvm *mvm = data->mvm;
1903 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1904 int ret, len;
1905
1906 /* if we don't have free ports, mcast frames will be dropped */
1907 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1908 return;
1909
1910 if (vif->type != NL80211_IFTYPE_STATION ||
1911 !vif->bss_conf.assoc)
1912 return;
1913
1914 cmd->port_id = data->port_id++;
1915 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1916 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1917
1c4abec0 1918 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1919 if (ret)
1920 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1921}
1922
1923static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1924{
1925 struct iwl_mvm_mc_iter_data iter_data = {
1926 .mvm = mvm,
88f2fd73
MG		 1927 };
1928
e59647ea
EP		 1929 lockdep_assert_held(&mvm->mutex);
1930
1931 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1932 return;
1933
1c4abec0 1934 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1935 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1936 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1937}
1938
e59647ea
EP		 1939static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1940 struct netdev_hw_addr_list *mc_list)
8ca151b5 1941{
e59647ea
EP		 1942 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1943 struct iwl_mcast_filter_cmd *cmd;
1944 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1945 int addr_count;
1946 bool pass_all;
e59647ea
EP		 1947 int len;
1948
f3bd58f4
MS		 1949 addr_count = netdev_hw_addr_list_count(mc_list);
1950 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1951 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1952 if (pass_all)
e59647ea 1953 addr_count = 0;
e59647ea
EP		 1954
1955 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1956 cmd = kzalloc(len, GFP_ATOMIC);
1957 if (!cmd)
1958 return 0;
1959
1960 if (pass_all) {
1961 cmd->pass_all = 1;
1962 return (u64)(unsigned long)cmd;
1963 }
1964
1965 netdev_hw_addr_list_for_each(addr, mc_list) {
1966 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1967 cmd->count, addr->addr);
1968 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1969 addr->addr, ETH_ALEN);
1970 cmd->count++;
1971 }
1972
1973 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1974}
1975
1976static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1977 unsigned int changed_flags,
1978 unsigned int *total_flags,
1979 u64 multicast)
1980{
e59647ea
EP		 1981 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1982 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1983
e59647ea 1984 mutex_lock(&mvm->mutex);
51b6b9e0 1985
e59647ea
EP		 1986 /* replace previous configuration */
1987 kfree(mvm->mcast_filter_cmd);
1988 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1989
e59647ea
EP		 1990 if (!cmd)
1991 goto out;
51b6b9e0 1992
e59647ea
EP		 1993 iwl_mvm_recalc_multicast(mvm);
1994out:
1995 mutex_unlock(&mvm->mutex);
1996 *total_flags = 0;
51b6b9e0
EG		 1997}
1998
effd1929
AO		 1999static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
2000 struct ieee80211_vif *vif,
2001 unsigned int filter_flags,
2002 unsigned int changed_flags)
2003{
2004 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2005
2006 /* We support only filter for probe requests */
2007 if (!(changed_flags & FIF_PROBE_REQ))
2008 return;
2009
2010 /* Supported only for p2p client interfaces */
2011 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
2012 !vif->p2p)
2013 return;
2014
2015 mutex_lock(&mvm->mutex);
2016 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2017 mutex_unlock(&mvm->mutex);
2018}
2019
c87163b9
EP		 2020#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2021struct iwl_bcast_iter_data {
2022 struct iwl_mvm *mvm;
2023 struct iwl_bcast_filter_cmd *cmd;
2024 u8 current_filter;
2025};
2026
2027static void
2028iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
2029 const struct iwl_fw_bcast_filter *in_filter,
2030 struct iwl_fw_bcast_filter *out_filter)
2031{
2032 struct iwl_fw_bcast_filter_attr *attr;
2033 int i;
2034
2035 memcpy(out_filter, in_filter, sizeof(*out_filter));
2036
2037 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
2038 attr = &out_filter->attrs[i];
2039
2040 if (!attr->mask)
2041 break;
2042
2ee8f021
EP		 2043 switch (attr->reserved1) {
2044 case cpu_to_le16(BC_FILTER_MAGIC_IP):
2045 if (vif->bss_conf.arp_addr_cnt != 1) {
2046 attr->mask = 0;
2047 continue;
2048 }
2049
2050 attr->val = vif->bss_conf.arp_addr_list[0];
2051 break;
2052 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
2053 attr->val = *(__be32 *)&vif->addr[2];
2054 break;
2055 default:
2056 break;
2057 }
2058 attr->reserved1 = 0;
c87163b9
EP		 2059 out_filter->num_attrs++;
2060 }
2061}
2062
2063static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
2064 struct ieee80211_vif *vif)
2065{
2066 struct iwl_bcast_iter_data *data = _data;
2067 struct iwl_mvm *mvm = data->mvm;
2068 struct iwl_bcast_filter_cmd *cmd = data->cmd;
2069 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2070 struct iwl_fw_bcast_mac *bcast_mac;
2071 int i;
2072
2073 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
2074 return;
2075
2076 bcast_mac = &cmd->macs[mvmvif->id];
2077
e48393e8
IP		 2078 /*
2079 * enable filtering only for associated stations, but not for P2P
2080 * Clients
2081 */
2082 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2083 !vif->bss_conf.assoc)
c87163b9
EP		 2084 return;
2085
2086 bcast_mac->default_discard = 1;
2087
2088 /* copy all configured filters */
2089 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2090 /*
2091 * Make sure we don't exceed our filters limit.
2092 * if there is still a valid filter to be configured,
2093 * be on the safe side and just allow bcast for this mac.
2094 */
2095 if (WARN_ON_ONCE(data->current_filter >=
2096 ARRAY_SIZE(cmd->filters))) {
2097 bcast_mac->default_discard = 0;
2098 bcast_mac->attached_filters = 0;
2099 break;
2100 }
2101
2102 iwl_mvm_set_bcast_filter(vif,
2103 &mvm->bcast_filters[i],
2104 &cmd->filters[data->current_filter]);
2105
2106 /* skip current filter if it contains no attributes */
2107 if (!cmd->filters[data->current_filter].num_attrs)
2108 continue;
2109
2110 /* attach the filter to current mac */
2111 bcast_mac->attached_filters |=
2112 cpu_to_le16(BIT(data->current_filter));
2113
2114 data->current_filter++;
2115 }
2116}
2117
de06a59e
EP		 2118bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2119 struct iwl_bcast_filter_cmd *cmd)
c87163b9 2120{
c87163b9
EP		 2121 struct iwl_bcast_iter_data iter_data = {
2122 .mvm = mvm,
de06a59e 2123 .cmd = cmd,
c87163b9
EP		 2124 };
2125
3b8983b1
MS		 2126 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2127 return false;
2128
de06a59e
EP		 2129 memset(cmd, 0, sizeof(*cmd));
2130 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2131 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2132
2133#ifdef CONFIG_IWLWIFI_DEBUGFS
2134 /* use debugfs filters/macs if override is configured */
2135 if (mvm->dbgfs_bcast_filtering.override) {
2136 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2137 sizeof(cmd->filters));
2138 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2139 sizeof(cmd->macs));
2140 return true;
2141 }
2142#endif
c87163b9
EP		 2143
2144 /* if no filters are configured, do nothing */
2145 if (!mvm->bcast_filters)
de06a59e 2146 return false;
c87163b9
EP		 2147
2148 /* configure and attach these filters for each associated sta vif */
2149 ieee80211_iterate_active_interfaces(
2150 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2151 iwl_mvm_bcast_filter_iterator, &iter_data);
2152
de06a59e
EP		 2153 return true;
2154}
2155static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2156 struct ieee80211_vif *vif)
2157{
2158 struct iwl_bcast_filter_cmd cmd;
2159
2160 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2161 return 0;
2162
2163 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2164 return 0;
2165
a1022927 2166 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2167 sizeof(cmd), &cmd);
2168}
2169#else
2170static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2171 struct ieee80211_vif *vif)
2172{
2173 return 0;
2174}
2175#endif
2176
8ca151b5
JB		 2177static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2178 struct ieee80211_vif *vif,
2179 struct ieee80211_bss_conf *bss_conf,
2180 u32 changes)
2181{
2182 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2183 int ret;
2184
6e97b0d2
IP		 2185 /*
2186 * Re-calculate the tsf id, as the master-slave relations depend on the
2187 * beacon interval, which was not known when the station interface was
2188 * added.
2189 */
2190 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2191 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2192
3dfd3a97
JB		 2193 /*
2194 * If we're not associated yet, take the (new) BSSID before associating
2195 * so the firmware knows. If we're already associated, then use the old
2196 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2197 * branch for disassociation below.
2198 */
2199 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2200 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2201
2202 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2203 if (ret)
2204 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2205
3dfd3a97
JB		 2206 /* after sending it once, adopt mac80211 data */
2207 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2208 mvmvif->associated = bss_conf->assoc;
2209
8ca151b5
JB		 2210 if (changes & BSS_CHANGED_ASSOC) {
2211 if (bss_conf->assoc) {
33cef925
JB		 2212 /* clear statistics to get clean beacon counter */
2213 iwl_mvm_request_statistics(mvm, true);
2214 memset(&mvmvif->beacon_stats, 0,
2215 sizeof(mvmvif->beacon_stats));
2216
8ca151b5 2217 /* add quota for this interface */
7754ae79 2218 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2219 if (ret) {
2220 IWL_ERR(mvm, "failed to update quotas\n");
2221 return;
2222 }
016d27e1
JB		 2223
2224 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2225 &mvm->status)) {
2226 /*
2227 * If we're restarting then the firmware will
2228 * obviously have lost synchronisation with
2229 * the AP. It will attempt to synchronise by
2230 * itself, but we can make it more reliable by
2231 * scheduling a session protection time event.
2232 *
2233 * The firmware needs to receive a beacon to
2234 * catch up with synchronisation, use 110% of
2235 * the beacon interval.
2236 *
2237 * Set a large maximum delay to allow for more
2238 * than a single interface.
2239 */
2240 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2241 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2242 5 * dur, false);
016d27e1 2243 }
1f3b0ff8
LE		 2244
2245 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2246 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2247 if (vif->p2p) {
29a90a49 2248 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2249 iwl_mvm_update_smps(mvm, vif,
2250 IWL_MVM_SMPS_REQ_PROT,
2251 IEEE80211_SMPS_DYNAMIC);
2252 }
8ca151b5 2253 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2254 /*
2255 * If update fails - SF might be running in associated
2256 * mode while disassociated - which is forbidden.
2257 */
2258 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2259 "Failed to update SF upon disassociation\n");
2260
8ca151b5
JB		 2261 /* remove AP station now that the MAC is unassoc */
2262 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2263 if (ret)
2264 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2265
2266 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2267 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2268 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2269 /* remove quota for this interface */
7754ae79 2270 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2271 if (ret)
2272 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2273
2274 if (vif->p2p)
2275 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2276
2277 /* this will take the cleared BSSID from bss_conf */
2278 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2279 if (ret)
2280 IWL_ERR(mvm,
2281 "failed to update MAC %pM (clear after unassoc)\n",
2282 vif->addr);
8ca151b5 2283 }
a20fd398 2284
e59647ea 2285 iwl_mvm_recalc_multicast(mvm);
c87163b9 2286 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2287
a20fd398
AO		 2288 /* reset rssi values */
2289 mvmvif->bf_data.ave_beacon_signal = 0;
2290
8e484f0b 2291 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2292 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2293 IEEE80211_SMPS_AUTOMATIC);
989c6505 2294 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2295 /*
2296 * We received a beacon _after_ association so
2297 * remove the session protection.
2298 */
2299 iwl_mvm_remove_time_event(mvm, mvmvif,
2300 &mvmvif->time_event_data);
8ca151b5 2301 }
cc87d322
EH		 2302
2303 if (changes & BSS_CHANGED_BEACON_INFO) {
2304 iwl_mvm_sf_update(mvm, vif, false);
2305 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2306 }
2307
1bc10d3b
JB		 2308 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2309 ret = iwl_mvm_power_update_mac(mvm);
2310 if (ret)
2311 IWL_ERR(mvm, "failed to update power mode\n");
2312 }
2313
88f2fd73
MG		 2314 if (changes & BSS_CHANGED_TXPOWER) {
2315 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2316 bss_conf->txpower);
2317 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2318 }
a20fd398
AO		 2319
2320 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2321 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2322 /* reset cqm events tracking */
2323 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2324 if (mvmvif->bf_data.bf_enabled) {
2325 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2326 if (ret)
2327 IWL_ERR(mvm,
2328 "failed to update CQM thresholds\n");
2329 }
a20fd398 2330 }
2ee8f021
EP		 2331
2332 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2333 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2334 iwl_mvm_configure_bcast_filter(mvm, vif);
2335 }
8ca151b5
JB		 2336}
2337
5023d966
JB		 2338static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2339 struct ieee80211_vif *vif)
8ca151b5
JB		 2340{
2341 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2342 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2343 int ret;
2344
576eeee9
EP		 2345 /*
2346 * iwl_mvm_mac_ctxt_add() might read directly from the device
2347 * (the system time), so make sure it is available.
2348 */
2349 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2350 if (ret)
2351 return ret;
2352
8ca151b5
JB		 2353 mutex_lock(&mvm->mutex);
2354
2355 /* Send the beacon template */
2356 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2357 if (ret)
2358 goto out_unlock;
2359
6e97b0d2
IP		 2360 /*
2361 * Re-calculate the tsf id, as the master-slave relations depend on the
2362 * beacon interval, which was not known when the AP interface was added.
2363 */
2364 if (vif->type == NL80211_IFTYPE_AP)
2365 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2366
94939080
GG		 2367 mvmvif->ap_assoc_sta_count = 0;
2368
8ca151b5
JB		 2369 /* Add the mac context */
2370 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2371 if (ret)
2372 goto out_unlock;
2373
2374 /* Perform the binding */
2375 ret = iwl_mvm_binding_add_vif(mvm, vif);
2376 if (ret)
2377 goto out_remove;
2378
8ca151b5
JB		 2379 /* Send the bcast station. At this stage the TBTT and DTIM time events
2380 * are added and applied to the scheduler */
013290aa 2381 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2382 if (ret)
2383 goto out_unbind;
2384
5691e218
IP		 2385 /* must be set before quota calculations */
2386 mvmvif->ap_ibss_active = true;
2387
a11e144e 2388 /* power updated needs to be done before quotas */
999609f1 2389 iwl_mvm_power_update_mac(mvm);
a11e144e 2390
7754ae79 2391 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2392 if (ret)
a11e144e 2393 goto out_quota_failed;
8ca151b5 2394
5023d966 2395 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2396 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2397 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2398
29a90a49
EP		 2399 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2400
8e484f0b 2401 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2402
f697267f
AN		 2403 /* we don't support TDLS during DCM */
2404 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2405 iwl_mvm_teardown_tdls_peers(mvm);
2406
939e4904 2407 goto out_unlock;
8ca151b5 2408
a11e144e 2409out_quota_failed:
999609f1 2410 iwl_mvm_power_update_mac(mvm);
5691e218 2411 mvmvif->ap_ibss_active = false;
013290aa 2412 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2413out_unbind:
2414 iwl_mvm_binding_remove_vif(mvm, vif);
2415out_remove:
2416 iwl_mvm_mac_ctxt_remove(mvm, vif);
2417out_unlock:
2418 mutex_unlock(&mvm->mutex);
576eeee9 2419 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2420 return ret;
2421}
2422
5023d966
JB		 2423static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2424 struct ieee80211_vif *vif)
8ca151b5
JB		 2425{
2426 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2427 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2428
38a12b5b
JB		 2429 iwl_mvm_prepare_mac_removal(mvm, vif);
2430
8ca151b5
JB		 2431 mutex_lock(&mvm->mutex);
2432
664322fa 2433 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2434 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2435 iwl_mvm_remove_time_event(mvm, mvmvif,
2436 &mvmvif->time_event_data);
664322fa 2437 RCU_INIT_POINTER(mvm->csa_vif, NULL);
e9cb0327 2438 mvmvif->csa_countdown = false;
7f0a7c67 2439 }
664322fa 2440
003e5236
AO		 2441 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2442 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2443 mvm->csa_tx_block_bcn_timeout = 0;
2444 }
2445
5023d966 2446 mvmvif->ap_ibss_active = false;
1c87bbad 2447 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2448
8e484f0b 2449 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2450
29a90a49
EP		 2451 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2452
5023d966 2453 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2454 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2455 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2456
7754ae79 2457 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2458 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2459 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2460
999609f1 2461 iwl_mvm_power_update_mac(mvm);
a11e144e 2462
8ca151b5
JB		 2463 iwl_mvm_mac_ctxt_remove(mvm, vif);
2464
2465 mutex_unlock(&mvm->mutex);
2466}
2467
5023d966
JB		 2468static void
2469iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2470 struct ieee80211_vif *vif,
2471 struct ieee80211_bss_conf *bss_conf,
2472 u32 changes)
8ca151b5 2473{
be2056fc 2474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2475
be2056fc
IP		 2476 /* Changes will be applied when the AP/IBSS is started */
2477 if (!mvmvif->ap_ibss_active)
2478 return;
2479
863230da 2480 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2481 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2482 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2483 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2484
8ca151b5 2485 /* Need to send a new beacon template to the FW */
863230da
JB		 2486 if (changes & BSS_CHANGED_BEACON &&
2487 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2488 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2489
2490 if (changes & BSS_CHANGED_TXPOWER) {
2491 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2492 bss_conf->txpower);
2493 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2494 }
2495
8ca151b5
JB		 2496}
2497
2498static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2499 struct ieee80211_vif *vif,
2500 struct ieee80211_bss_conf *bss_conf,
2501 u32 changes)
2502{
2503 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2504
576eeee9
EP		 2505 /*
2506 * iwl_mvm_bss_info_changed_station() might call
2507 * iwl_mvm_protect_session(), which reads directly from
2508 * the device (the system time), so make sure it is available.
2509 */
2510 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2511 return;
2512
8ca151b5
JB		 2513 mutex_lock(&mvm->mutex);
2514
723f02ed 2515 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2516 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2517
8ca151b5
JB		 2518 switch (vif->type) {
2519 case NL80211_IFTYPE_STATION:
2520 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2521 break;
2522 case NL80211_IFTYPE_AP:
5023d966
JB		 2523 case NL80211_IFTYPE_ADHOC:
2524 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2525 break;
2526 default:
2527 /* shouldn't happen */
2528 WARN_ON_ONCE(1);
2529 }
2530
2531 mutex_unlock(&mvm->mutex);
576eeee9 2532 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2533}
2534
2535static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2536 struct ieee80211_vif *vif,
c56ef672 2537 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2538{
2539 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2540 int ret;
2541
6749dd80
LC		 2542 if (hw_req->req.n_channels == 0 ||
2543 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2544 return -EINVAL;
2545
2546 mutex_lock(&mvm->mutex);
6749dd80 2547 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2548 mutex_unlock(&mvm->mutex);
6749dd80 2549
8ca151b5
JB		 2550 return ret;
2551}
2552
2553static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2554 struct ieee80211_vif *vif)
2555{
2556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2557
2558 mutex_lock(&mvm->mutex);
2559
e7d3abab
LC		 2560 /* Due to a race condition, it's possible that mac80211 asks
2561 * us to stop a hw_scan when it's already stopped. This can
2562 * happen, for instance, if we stopped the scan ourselves,
2563 * called ieee80211_scan_completed() and the userspace called
2564 * cancel scan scan before ieee80211_scan_work() could run.
2565 * To handle that, simply return if the scan is not running.
2566 */
262888fc 2567 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2568 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2569
2570 mutex_unlock(&mvm->mutex);
2571}
2572
2573static void
2574iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2575 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2576 int num_frames,
2577 enum ieee80211_frame_release_type reason,
2578 bool more_data)
2579{
2580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2581
3e56eadf 2582 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2583
3e56eadf
JB		 2584 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2585 tids, more_data, false);
2586}
2587
2588static void
2589iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2590 struct ieee80211_sta *sta, u16 tids,
2591 int num_frames,
2592 enum ieee80211_frame_release_type reason,
2593 bool more_data)
2594{
2595 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2596
2597 /* Called when we need to transmit (a) frame(s) from agg queue */
2598
2599 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2600 tids, more_data, true);
8ca151b5
JB		 2601}
2602
2603static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2604 struct ieee80211_vif *vif,
2605 enum sta_notify_cmd cmd,
2606 struct ieee80211_sta *sta)
2607{
2608 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2609 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2610 unsigned long txqs = 0, tids = 0;
3e56eadf 2611 int tid;
8ca151b5 2612
c22b0ff5
EG		 2613 spin_lock_bh(&mvmsta->lock);
2614 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2615 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2616
2617 if (tid_data->state != IWL_AGG_ON &&
2618 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2619 continue;
2620
2621 __set_bit(tid_data->txq_id, &txqs);
2622
2623 if (iwl_mvm_tid_queued(tid_data) == 0)
2624 continue;
2625
2626 __set_bit(tid, &tids);
2627 }
2628
8ca151b5
JB		 2629 switch (cmd) {
2630 case STA_NOTIFY_SLEEP:
e3d4bc8c 2631 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2632 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2633
c22b0ff5 2634 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2635 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2636
2637 if (txqs)
2638 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2639 /*
2640 * The fw updates the STA to be asleep. Tx packets on the Tx
2641 * queues to this station will not be transmitted. The fw will
2642 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2643 */
2644 break;
2645 case STA_NOTIFY_AWAKE:
881acd89 2646 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2647 break;
c22b0ff5
EG		 2648
2649 if (txqs)
2650 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2651 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2652 break;
2653 default:
2654 break;
2655 }
c22b0ff5 2656 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2657}
2658
1ddbbb0c
JB		 2659static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2660 struct ieee80211_vif *vif,
2661 struct ieee80211_sta *sta)
2662{
2663 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
94939080 2664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
9d8ce6af 2665 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2666
2667 /*
2668 * This is called before mac80211 does RCU synchronisation,
2669 * so here we already invalidate our internal RCU-protected
2670 * station pointer. The rest of the code will thus no longer
2671 * be able to find the station this way, and we don't rely
2672 * on further RCU synchronisation after the sta_state()
2673 * callback deleted the station.
2674 */
2675 mutex_lock(&mvm->mutex);
2676 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2677 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2678 ERR_PTR(-ENOENT));
94939080
GG		 2679
2680 if (mvm_sta->vif->type == NL80211_IFTYPE_AP) {
2681 mvmvif->ap_assoc_sta_count--;
f82c8339 2682 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
94939080
GG		 2683 }
2684
1ddbbb0c
JB		 2685 mutex_unlock(&mvm->mutex);
2686}
2687
bd1ba664
JB		 2688static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2689 const u8 *bssid)
2690{
2691 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2692 return;
2693
2694 if (iwlwifi_mod_params.uapsd_disable) {
2695 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2696 return;
2697 }
2698
2699 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2700}
2701
8ca151b5
JB		 2702static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2703 struct ieee80211_vif *vif,
2704 struct ieee80211_sta *sta,
2705 enum ieee80211_sta_state old_state,
2706 enum ieee80211_sta_state new_state)
2707{
2708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2709 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2710 int ret;
2711
2712 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2713 sta->addr, old_state, new_state);
2714
2715 /* this would be a mac80211 bug ... but don't crash */
2716 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2717 return -EINVAL;
2718
2719 /* if a STA is being removed, reuse its ID */
2720 flush_work(&mvm->sta_drained_wk);
2721
2722 mutex_lock(&mvm->mutex);
2723 if (old_state == IEEE80211_STA_NOTEXIST &&
2724 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2725 /*
2726 * Firmware bug - it'll crash if the beacon interval is less
2727 * than 16. We can't avoid connecting at all, so refuse the
2728 * station state change, this will cause mac80211 to abandon
2729 * attempts to connect to this AP, and eventually wpa_s will
2730 * blacklist the AP...
2731 */
2732 if (vif->type == NL80211_IFTYPE_STATION &&
2733 vif->bss_conf.beacon_int < 16) {
2734 IWL_ERR(mvm,
2735 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2736 sta->addr, vif->bss_conf.beacon_int);
2737 ret = -EINVAL;
2738 goto out_unlock;
2739 }
cf7b491d
AN		 2740
2741 if (sta->tdls &&
2742 (vif->p2p ||
fa3d07e4
AN		 2743 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2744 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2745 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2746 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2747 ret = -EBUSY;
2748 goto out_unlock;
2749 }
2750
8ca151b5 2751 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2752 if (sta->tdls && ret == 0)
2753 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2754 } else if (old_state == IEEE80211_STA_NONE &&
2755 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2756 /*
2757 * EBS may be disabled due to previous failures reported by FW.
2758 * Reset EBS status here assuming environment has been changed.
2759 */
2760 mvm->last_ebs_successful = true;
bd1ba664 2761 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2762 ret = 0;
2763 } else if (old_state == IEEE80211_STA_AUTH &&
2764 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2765 ret = iwl_mvm_update_sta(mvm, vif, sta);
2766 if (ret == 0)
2767 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2768 mvmvif->phy_ctxt->channel->band,
2769 true);
8ca151b5
JB		 2770 } else if (old_state == IEEE80211_STA_ASSOC &&
2771 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2772
2773 /* we don't support TDLS during DCM */
2774 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2775 iwl_mvm_teardown_tdls_peers(mvm);
2776
7df15b1e 2777 /* enable beacon filtering */
fa7b2e7f 2778 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2779 ret = 0;
2780 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2781 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2782 /* disable beacon filtering */
a1022927 2783 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2784 ret = 0;
2785 } else if (old_state == IEEE80211_STA_ASSOC &&
2786 new_state == IEEE80211_STA_AUTH) {
2787 ret = 0;
2788 } else if (old_state == IEEE80211_STA_AUTH &&
2789 new_state == IEEE80211_STA_NONE) {
2790 ret = 0;
2791 } else if (old_state == IEEE80211_STA_NONE &&
2792 new_state == IEEE80211_STA_NOTEXIST) {
2793 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2794 if (sta->tdls)
2795 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2796 } else {
2797 ret = -EIO;
2798 }
48bc1307 2799 out_unlock:
8ca151b5
JB		 2800 mutex_unlock(&mvm->mutex);
2801
9c126cd6
LK		 2802 if (sta->tdls && ret == 0) {
2803 if (old_state == IEEE80211_STA_NOTEXIST &&
2804 new_state == IEEE80211_STA_NONE)
2805 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2806 else if (old_state == IEEE80211_STA_NONE &&
2807 new_state == IEEE80211_STA_NOTEXIST)
2808 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2809 }
2810
8ca151b5
JB		 2811 return ret;
2812}
2813
2814static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2815{
2816 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2817
2818 mvm->rts_threshold = value;
2819
2820 return 0;
2821}
2822
1f3b0ff8
LE		 2823static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2824 struct ieee80211_vif *vif,
2825 struct ieee80211_sta *sta, u32 changed)
2826{
2827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2828
2829 if (vif->type == NL80211_IFTYPE_STATION &&
2830 changed & IEEE80211_RC_NSS_CHANGED)
2831 iwl_mvm_sf_update(mvm, vif, false);
2832}
2833
8ca151b5
JB		 2834static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2835 struct ieee80211_vif *vif, u16 ac,
2836 const struct ieee80211_tx_queue_params *params)
2837{
2838 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2839 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2840
2841 mvmvif->queue_params[ac] = *params;
2842
2843 /*
2844 * No need to update right away, we'll get BSS_CHANGED_QOS
2845 * The exception is P2P_DEVICE interface which needs immediate update.
2846 */
2847 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2848 int ret;
2849
2850 mutex_lock(&mvm->mutex);
3dfd3a97 2851 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2852 mutex_unlock(&mvm->mutex);
2853 return ret;
2854 }
2855 return 0;
2856}
2857
2858static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2859 struct ieee80211_vif *vif)
2860{
2861 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2862 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2863 200 + vif->bss_conf.beacon_int);
2864 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2865 100 + vif->bss_conf.beacon_int);
2866
2867 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2868 return;
2869
576eeee9
EP		 2870 /*
2871 * iwl_mvm_protect_session() reads directly from the device
2872 * (the system time), so make sure it is available.
2873 */
2874 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2875 return;
2876
8ca151b5
JB		 2877 mutex_lock(&mvm->mutex);
2878 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2879 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2880 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2881
2882 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2883}
2884
35a000b7
DS		 2885static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2886 struct ieee80211_vif *vif,
2887 struct cfg80211_sched_scan_request *req,
633e2713 2888 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2889{
2890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2891
35a000b7 2892 int ret;
4660dfbb 2893
35a000b7
DS		 2894 mutex_lock(&mvm->mutex);
2895
1f940386 2896 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2897 ret = -EBUSY;
2898 goto out;
2899 }
2900
19945dfb 2901 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2902
35a000b7
DS		 2903out:
2904 mutex_unlock(&mvm->mutex);
2905 return ret;
2906}
2907
37e3308c
JB		 2908static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2909 struct ieee80211_vif *vif)
35a000b7
DS		 2910{
2911 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2912 int ret;
35a000b7
DS		 2913
2914 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2915
2916 /* Due to a race condition, it's possible that mac80211 asks
2917 * us to stop a sched_scan when it's already stopped. This
2918 * can happen, for instance, if we stopped the scan ourselves,
2919 * called ieee80211_sched_scan_stopped() and the userspace called
2920 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2921 * could run. To handle this, simply return if the scan is
2922 * not running.
2923 */
262888fc 2924 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2925 mutex_unlock(&mvm->mutex);
2926 return 0;
2927 }
2928
c7d42480 2929 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2930 mutex_unlock(&mvm->mutex);
33ea27f6 2931 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2932
33ea27f6 2933 return ret;
35a000b7
DS		 2934}
2935
8ca151b5
JB		 2936static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2937 enum set_key_cmd cmd,
2938 struct ieee80211_vif *vif,
2939 struct ieee80211_sta *sta,
2940 struct ieee80211_key_conf *key)
2941{
2942 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2943 int ret;
d6ee54a9 2944 u8 key_offset;
8ca151b5
JB		 2945
2946 if (iwlwifi_mod_params.sw_crypto) {
2947 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2948 return -EOPNOTSUPP;
2949 }
2950
2951 switch (key->cipher) {
2952 case WLAN_CIPHER_SUITE_TKIP:
2953 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
8ca151b5
JB		 2954 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2955 break;
ca8c0f4b
JB		 2956 case WLAN_CIPHER_SUITE_CCMP:
2957 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2958 break;
8ca151b5 2959 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2960 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2961 break;
2962 case WLAN_CIPHER_SUITE_WEP40:
2963 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2964 /* For non-client mode, only use WEP keys for TX as we probably
2965 * don't have a station yet anyway and would then have to keep
2966 * track of the keys, linking them to each of the clients/peers
2967 * as they appear. For now, don't do that, for performance WEP
2968 * offload doesn't really matter much, but we need it for some
2969 * other offload features in client mode.
8ca151b5 2970 */
ba3943b0
JB		 2971 if (vif->type != NL80211_IFTYPE_STATION)
2972 return 0;
2973 break;
8ca151b5 2974 default:
e36e5433
MS		 2975 /* currently FW supports only one optional cipher scheme */
2976 if (hw->n_cipher_schemes &&
2977 hw->cipher_schemes->cipher == key->cipher)
2978 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2979 else
2980 return -EOPNOTSUPP;
8ca151b5
JB		 2981 }
2982
2983 mutex_lock(&mvm->mutex);
2984
2985 switch (cmd) {
2986 case SET_KEY:
5023d966
JB		 2987 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2988 vif->type == NL80211_IFTYPE_AP) && !sta) {
2989 /*
2990 * GTK on AP interface is a TX-only key, return 0;
2991 * on IBSS they're per-station and because we're lazy
2992 * we don't support them for RX, so do the same.
2993 */
6caffd4f
JB		 2994 ret = 0;
2995 key->hw_key_idx = STA_KEY_IDX_INVALID;
2996 break;
2997 }
2998
b546dcd6
JB		 2999 /* During FW restart, in order to restore the state as it was,
3000 * don't try to reprogram keys we previously failed for.
3001 */
3002 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3003 key->hw_key_idx == STA_KEY_IDX_INVALID) {
3004 IWL_DEBUG_MAC80211(mvm,
3005 "skip invalid idx key programming during restart\n");
3006 ret = 0;
3007 break;
3008 }
3009
d6ee54a9
LC		 3010 /* in HW restart reuse the index, otherwise request a new one */
3011 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3012 key_offset = key->hw_key_idx;
3013 else
3014 key_offset = STA_KEY_IDX_INVALID;
3015
8ca151b5 3016 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
d6ee54a9 3017 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
8ca151b5
JB		 3018 if (ret) {
3019 IWL_WARN(mvm, "set key failed\n");
3020 /*
3021 * can't add key for RX, but we don't need it
3022 * in the device for TX so still return 0
3023 */
6caffd4f 3024 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 3025 ret = 0;
3026 }
3027
3028 break;
3029 case DISABLE_KEY:
6caffd4f
JB		 3030 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3031 ret = 0;
3032 break;
3033 }
3034
8ca151b5
JB		 3035 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3036 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3037 break;
3038 default:
3039 ret = -EINVAL;
3040 }
3041
3042 mutex_unlock(&mvm->mutex);
3043 return ret;
3044}
3045
3046static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3047 struct ieee80211_vif *vif,
3048 struct ieee80211_key_conf *keyconf,
3049 struct ieee80211_sta *sta,
3050 u32 iv32, u16 *phase1key)
3051{
3052 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3053
5023d966
JB		 3054 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3055 return;
3056
8ca151b5
JB		 3057 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3058}
3059
3060
b112889c
AM		 3061static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3062 struct iwl_rx_packet *pkt, void *data)
3063{
3064 struct iwl_mvm *mvm =
3065 container_of(notif_wait, struct iwl_mvm, notif_wait);
3066 struct iwl_hs20_roc_res *resp;
3067 int resp_len = iwl_rx_packet_payload_len(pkt);
3068 struct iwl_mvm_time_event_data *te_data = data;
3069
3070 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3071 return true;
3072
3073 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3074 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3075 return true;
3076 }
3077
3078 resp = (void *)pkt->data;
3079
3080 IWL_DEBUG_TE(mvm,
3081 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3082 resp->status, resp->event_unique_id);
3083
3084 te_data->uid = le32_to_cpu(resp->event_unique_id);
3085 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3086 te_data->uid);
3087
3088 spin_lock_bh(&mvm->time_event_lock);
3089 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3090 spin_unlock_bh(&mvm->time_event_lock);
3091
3092 return true;
3093}
3094
35d3dab5 3095#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3096static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3097 struct ieee80211_channel *channel,
3098 struct ieee80211_vif *vif,
3099 int duration)
3100{
3101 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3102 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3103 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3104 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c
AM		 3105 struct iwl_notification_wait wait_time_event;
3106 struct iwl_hs20_roc_req aux_roc_req = {
3107 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3108 .id_and_color =
3109 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3110 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3111 /* Set the channel info data */
3112 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3113 PHY_BAND_24 : PHY_BAND_5,
3114 .channel_info.channel = channel->hw_value,
3115 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3116 /* Set the time and duration */
3117 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3118 .apply_time_max_delay =
3119 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3120 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3121 };
3122
3123 /* Set the node address */
3124 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3125
a6cc5163
MG		 3126 lockdep_assert_held(&mvm->mutex);
3127
3128 spin_lock_bh(&mvm->time_event_lock);
3129
3130 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3131 spin_unlock_bh(&mvm->time_event_lock);
3132 return -EIO;
3133 }
3134
b112889c
AM		 3135 te_data->vif = vif;
3136 te_data->duration = duration;
3137 te_data->id = HOT_SPOT_CMD;
3138
b112889c
AM		 3139 spin_unlock_bh(&mvm->time_event_lock);
3140
3141 /*
3142 * Use a notification wait, which really just processes the
3143 * command response and doesn't wait for anything, in order
3144 * to be able to process the response and get the UID inside
3145 * the RX path. Using CMD_WANT_SKB doesn't work because it
3146 * stores the buffer and then wakes up this thread, by which
3147 * time another notification (that the time event started)
3148 * might already be processed unsuccessfully.
3149 */
3150 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3151 time_event_response,
3152 ARRAY_SIZE(time_event_response),
3153 iwl_mvm_rx_aux_roc, te_data);
3154
3155 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3156 &aux_roc_req);
3157
3158 if (res) {
3159 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3160 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3161 goto out_clear_te;
3162 }
3163
3164 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3165 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3166 /* should never fail */
3167 WARN_ON_ONCE(res);
3168
3169 if (res) {
3170 out_clear_te:
3171 spin_lock_bh(&mvm->time_event_lock);
3172 iwl_mvm_te_clear_data(mvm, te_data);
3173 spin_unlock_bh(&mvm->time_event_lock);
3174 }
3175
3176 return res;
3177}
3178
8ca151b5
JB		 3179static int iwl_mvm_roc(struct ieee80211_hw *hw,
3180 struct ieee80211_vif *vif,
3181 struct ieee80211_channel *channel,
d339d5ca
IP		 3182 int duration,
3183 enum ieee80211_roc_type type)
8ca151b5
JB		 3184{
3185 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3186 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3187 struct cfg80211_chan_def chandef;
31d385ae
IP		 3188 struct iwl_mvm_phy_ctxt *phy_ctxt;
3189 int ret, i;
3190
3191 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3192 duration, type);
8ca151b5 3193
6ed13164
MG		 3194 flush_work(&mvm->roc_done_wk);
3195
a6cc5163
MG		 3196 mutex_lock(&mvm->mutex);
3197
b112889c
AM		 3198 switch (vif->type) {
3199 case NL80211_IFTYPE_STATION:
859d914c
JB		 3200 if (fw_has_capa(&mvm->fw->ucode_capa,
3201 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3202 /* Use aux roc framework (HS20) */
3203 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3204 vif, duration);
3205 goto out_unlock;
3206 }
3207 IWL_ERR(mvm, "hotspot not supported\n");
3208 ret = -EINVAL;
a6cc5163 3209 goto out_unlock;
b112889c
AM		 3210 case NL80211_IFTYPE_P2P_DEVICE:
3211 /* handle below */
3212 break;
3213 default:
3214 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3215 ret = -EINVAL;
3216 goto out_unlock;
8ca151b5
JB		 3217 }
3218
31d385ae
IP		 3219 for (i = 0; i < NUM_PHY_CTX; i++) {
3220 phy_ctxt = &mvm->phy_ctxts[i];
3221 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3222 continue;
3223
3224 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3225 /*
3226 * Unbind the P2P_DEVICE from the current PHY context,
3227 * and if the PHY context is not used remove it.
3228 */
3229 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3230 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3231 goto out_unlock;
3232
3233 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3234
3235 /* Bind the P2P_DEVICE to the current PHY Context */
3236 mvmvif->phy_ctxt = phy_ctxt;
3237
3238 ret = iwl_mvm_binding_add_vif(mvm, vif);
3239 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3240 goto out_unlock;
3241
3242 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3243 goto schedule_time_event;
3244 }
3245 }
3246
3247 /* Need to update the PHY context only if the ROC channel changed */
3248 if (channel == mvmvif->phy_ctxt->channel)
3249 goto schedule_time_event;
3250
8ca151b5 3251 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3252
31d385ae
IP		 3253 /*
3254 * Change the PHY context configuration as it is currently referenced
3255 * only by the P2P Device MAC
3256 */
3257 if (mvmvif->phy_ctxt->ref == 1) {
3258 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3259 &chandef, 1, 1);
3260 if (ret)
3261 goto out_unlock;
3262 } else {
3263 /*
3264 * The PHY context is shared with other MACs. Need to remove the
3265 * P2P Device from the binding, allocate an new PHY context and
3266 * create a new binding
3267 */
3268 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3269 if (!phy_ctxt) {
3270 ret = -ENOSPC;
3271 goto out_unlock;
3272 }
3273
3274 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3275 1, 1);
3276 if (ret) {
3277 IWL_ERR(mvm, "Failed to change PHY context\n");
3278 goto out_unlock;
3279 }
3280
3281 /* Unbind the P2P_DEVICE from the current PHY context */
3282 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3283 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3284 goto out_unlock;
3285
3286 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3287
3288 /* Bind the P2P_DEVICE to the new allocated PHY context */
3289 mvmvif->phy_ctxt = phy_ctxt;
3290
3291 ret = iwl_mvm_binding_add_vif(mvm, vif);
3292 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3293 goto out_unlock;
3294
3295 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3296 }
3297
3298schedule_time_event:
8ca151b5 3299 /* Schedule the time events */
e635c797 3300 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3301
31d385ae 3302out_unlock:
8ca151b5
JB		 3303 mutex_unlock(&mvm->mutex);
3304 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3305 return ret;
3306}
3307
3308static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3309{
3310 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3311
3312 IWL_DEBUG_MAC80211(mvm, "enter\n");
3313
3314 mutex_lock(&mvm->mutex);
bf5da87f 3315 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3316 mutex_unlock(&mvm->mutex);
3317
3318 IWL_DEBUG_MAC80211(mvm, "leave\n");
3319 return 0;
3320}
3321
b08c1d97
LC		 3322static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3323 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3324{
fe0f2de3
IP		 3325 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3326 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3327 int ret;
3328
b08c1d97
LC		 3329 lockdep_assert_held(&mvm->mutex);
3330
53a9d61e 3331 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3332
fe0f2de3
IP		 3333 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3334 if (!phy_ctxt) {
3335 ret = -ENOSPC;
3336 goto out;
3337 }
8ca151b5 3338
dcbc3e1a 3339 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3340 ctx->rx_chains_static,
3341 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3342 if (ret) {
3343 IWL_ERR(mvm, "Failed to add PHY context\n");
3344 goto out;
3345 }
3346
53a9d61e 3347 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3348 *phy_ctxt_id = phy_ctxt->id;
3349out:
b08c1d97
LC		 3350 return ret;
3351}
3352
3353static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3354 struct ieee80211_chanctx_conf *ctx)
3355{
3356 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3357 int ret;
3358
3359 mutex_lock(&mvm->mutex);
3360 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3361 mutex_unlock(&mvm->mutex);
b08c1d97 3362
8ca151b5
JB		 3363 return ret;
3364}
3365
b08c1d97
LC		 3366static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3367 struct ieee80211_chanctx_conf *ctx)
3368{
3369 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3370 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3371
3372 lockdep_assert_held(&mvm->mutex);
3373
3374 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3375}
3376
8ca151b5
JB		 3377static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3378 struct ieee80211_chanctx_conf *ctx)
3379{
3380 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3381
3382 mutex_lock(&mvm->mutex);
b08c1d97 3383 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3384 mutex_unlock(&mvm->mutex);
3385}
3386
3387static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3388 struct ieee80211_chanctx_conf *ctx,
3389 u32 changed)
3390{
3391 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3392 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3393 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3394
31d385ae
IP		 3395 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3396 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3397 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3398 IEEE80211_CHANCTX_CHANGE_RADAR |
3399 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3400 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3401 phy_ctxt->ref, changed))
3402 return;
3403
8ca151b5 3404 mutex_lock(&mvm->mutex);
4d66449a 3405 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3406 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3407 ctx->rx_chains_static,
3408 ctx->rx_chains_dynamic);
3409 mutex_unlock(&mvm->mutex);
3410}
3411
b08c1d97
LC		 3412static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3413 struct ieee80211_vif *vif,
f0c97783
LC		 3414 struct ieee80211_chanctx_conf *ctx,
3415 bool switching_chanctx)
8ca151b5 3416{
fe0f2de3
IP		 3417 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3418 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3419 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3420 int ret;
3421
b08c1d97 3422 lockdep_assert_held(&mvm->mutex);
8ca151b5 3423
fe0f2de3 3424 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3425
3426 switch (vif->type) {
3427 case NL80211_IFTYPE_AP:
4741dd04
LC		 3428 /* only needed if we're switching chanctx (i.e. during CSA) */
3429 if (switching_chanctx) {
bd3398e2
AO		 3430 mvmvif->ap_ibss_active = true;
3431 break;
3432 }
5023d966 3433 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3434 /*
3435 * The AP binding flow is handled as part of the start_ap flow
5023d966 3436 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3437 */
3438 ret = 0;
b08c1d97 3439 goto out;
8ca151b5 3440 case NL80211_IFTYPE_STATION:
2533edce 3441 break;
8ca151b5 3442 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3443 /* always disable PS when a monitor interface is active */
3444 mvmvif->ps_disabled = true;
8ca151b5
JB		 3445 break;
3446 default:
3447 ret = -EINVAL;
b08c1d97 3448 goto out;
8ca151b5
JB		 3449 }
3450
3451 ret = iwl_mvm_binding_add_vif(mvm, vif);
3452 if (ret)
b08c1d97 3453 goto out;
8ca151b5
JB		 3454
3455 /*
92d85562
AB		 3456 * Power state must be updated before quotas,
3457 * otherwise fw will complain.
3458 */
999609f1 3459 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3460
3461 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3462 * interfaces. For the other types, the bss_info changed flow
3463 * will handle quota settings.
3464 */
3465 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3466 mvmvif->monitor_active = true;
7754ae79 3467 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3468 if (ret)
3469 goto out_remove_binding;
3470 }
3471
bd3398e2 3472 /* Handle binding during CSA */
a57c688d 3473 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3474 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3475 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3476 }
3477
4741dd04 3478 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3479 u32 duration = 2 * vif->bss_conf.beacon_int;
3480
3481 /* iwl_mvm_protect_session() reads directly from the
3482 * device (the system time), so make sure it is
3483 * available.
3484 */
3485 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3486 if (ret)
3487 goto out_remove_binding;
3488
3489 /* Protect the session to make sure we hear the first
3490 * beacon on the new channel.
3491 */
3492 iwl_mvm_protect_session(mvm, vif, duration, duration,
3493 vif->bss_conf.beacon_int / 2,
3494 true);
3495
3496 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3497
7754ae79 3498 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3499 }
3500
b08c1d97 3501 goto out;
8ca151b5 3502
b08c1d97 3503out_remove_binding:
8ca151b5 3504 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3505 iwl_mvm_power_update_mac(mvm);
b08c1d97 3506out:
8ca151b5
JB		 3507 if (ret)
3508 mvmvif->phy_ctxt = NULL;
3509 return ret;
3510}
b08c1d97
LC		 3511static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3512 struct ieee80211_vif *vif,
3513 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3514{
3515 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3516 int ret;
8ca151b5
JB		 3517
3518 mutex_lock(&mvm->mutex);
f0c97783 3519 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3520 mutex_unlock(&mvm->mutex);
3521
3522 return ret;
3523}
3524
3525static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3526 struct ieee80211_vif *vif,
f0c97783
LC		 3527 struct ieee80211_chanctx_conf *ctx,
3528 bool switching_chanctx)
b08c1d97
LC		 3529{
3530 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3531 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3532
3533 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3534
3535 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3536
8ca151b5 3537 switch (vif->type) {
5023d966 3538 case NL80211_IFTYPE_ADHOC:
b08c1d97 3539 goto out;
8ca151b5 3540 case NL80211_IFTYPE_MONITOR:
1e1391ca 3541 mvmvif->monitor_active = false;
2533edce 3542 mvmvif->ps_disabled = false;
8ca151b5 3543 break;
bd3398e2
AO		 3544 case NL80211_IFTYPE_AP:
3545 /* This part is triggered only during CSA */
4741dd04 3546 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3547 goto out;
bd3398e2 3548
7ef0aab6
AO		 3549 mvmvif->csa_countdown = false;
3550
003e5236
AO		 3551 /* Set CS bit on all the stations */
3552 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3553
3554 /* Save blocked iface, the timeout is set on the next beacon */
3555 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3556
bd3398e2 3557 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3558 break;
3559 case NL80211_IFTYPE_STATION:
3560 if (!switching_chanctx)
3561 break;
3562
3563 disabled_vif = vif;
3564
3dfd3a97 3565 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3566 break;
8ca151b5
JB		 3567 default:
3568 break;
3569 }
3570
7754ae79 3571 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3572 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3573
b08c1d97 3574out:
a11e144e 3575 mvmvif->phy_ctxt = NULL;
999609f1 3576 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3577}
3578
3579static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3580 struct ieee80211_vif *vif,
3581 struct ieee80211_chanctx_conf *ctx)
3582{
3583 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3584
3585 mutex_lock(&mvm->mutex);
f0c97783 3586 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3587 mutex_unlock(&mvm->mutex);
3588}
3589
50cc9574
LC		 3590static int
3591iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3592 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3593{
b08c1d97
LC		 3594 int ret;
3595
b08c1d97 3596 mutex_lock(&mvm->mutex);
f0c97783 3597 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3598 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3599
3600 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3601 if (ret) {
3602 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3603 goto out_reassign;
3604 }
3605
f0c97783
LC		 3606 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3607 true);
b08c1d97
LC		 3608 if (ret) {
3609 IWL_ERR(mvm,
3610 "failed to assign new_ctx during channel switch\n");
3611 goto out_remove;
3612 }
3613
f697267f
AN		 3614 /* we don't support TDLS during DCM - can be caused by channel switch */
3615 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3616 iwl_mvm_teardown_tdls_peers(mvm);
3617
b08c1d97
LC		 3618 goto out;
3619
3620out_remove:
3621 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3622
3623out_reassign:
6fd1fb63 3624 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3625 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3626 goto out_restart;
3627 }
3628
6fd1fb63
LC		 3629 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3630 true)) {
b08c1d97
LC		 3631 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3632 goto out_restart;
3633 }
3634
3635 goto out;
3636
3637out_restart:
3638 /* things keep failing, better restart the hw */
3639 iwl_mvm_nic_restart(mvm, false);
3640
3641out:
3642 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3643
3644 return ret;
3645}
3646
48a256e8
LC		 3647static int
3648iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3649 struct ieee80211_vif_chanctx_switch *vifs)
3650{
3651 int ret;
3652
3653 mutex_lock(&mvm->mutex);
3654 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3655
3656 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3657 true);
3658 if (ret) {
3659 IWL_ERR(mvm,
3660 "failed to assign new_ctx during channel switch\n");
3661 goto out_reassign;
3662 }
3663
3664 goto out;
3665
3666out_reassign:
3667 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3668 true)) {
3669 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3670 goto out_restart;
3671 }
3672
3673 goto out;
3674
3675out_restart:
3676 /* things keep failing, better restart the hw */
3677 iwl_mvm_nic_restart(mvm, false);
3678
3679out:
3680 mutex_unlock(&mvm->mutex);
3681
3682 return ret;
3683}
3684
50cc9574
LC		 3685static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3686 struct ieee80211_vif_chanctx_switch *vifs,
3687 int n_vifs,
3688 enum ieee80211_chanctx_switch_mode mode)
3689{
3690 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3691 int ret;
3692
3693 /* we only support a single-vif right now */
3694 if (n_vifs > 1)
3695 return -EOPNOTSUPP;
3696
3697 switch (mode) {
3698 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3699 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3700 break;
3701 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3702 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3703 break;
3704 default:
3705 ret = -EOPNOTSUPP;
3706 break;
3707 }
3708
b08c1d97
LC		 3709 return ret;
3710}
3711
8ca151b5
JB		 3712static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3713 struct ieee80211_sta *sta,
3714 bool set)
3715{
3716 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3717 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3718
3719 if (!mvm_sta || !mvm_sta->vif) {
3720 IWL_ERR(mvm, "Station is not associated to a vif\n");
3721 return -EINVAL;
3722 }
3723
3724 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3725}
3726
507cadf2
DS		 3727#ifdef CONFIG_NL80211_TESTMODE
3728static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3729 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3730 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3731 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3732};
3733
3734static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3735 struct ieee80211_vif *vif,
3736 void *data, int len)
3737{
3738 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3739 int err;
3740 u32 noa_duration;
3741
3742 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3743 if (err)
3744 return err;
3745
3746 if (!tb[IWL_MVM_TM_ATTR_CMD])
3747 return -EINVAL;
3748
3749 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3750 case IWL_MVM_TM_CMD_SET_NOA:
3751 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3752 !vif->bss_conf.enable_beacon ||
3753 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3754 return -EINVAL;
3755
3756 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3757 if (noa_duration >= vif->bss_conf.beacon_int)
3758 return -EINVAL;
3759
3760 mvm->noa_duration = noa_duration;
3761 mvm->noa_vif = vif;
3762
7754ae79 3763 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3764 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3765 /* must be associated client vif - ignore authorized */
3766 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3767 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3768 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3769 return -EINVAL;
3770
3771 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3772 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3773 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3774 }
3775
3776 return -EOPNOTSUPP;
3777}
3778
3779static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3780 struct ieee80211_vif *vif,
3781 void *data, int len)
3782{
3783 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3784 int err;
3785
3786 mutex_lock(&mvm->mutex);
3787 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3788 mutex_unlock(&mvm->mutex);
3789
3790 return err;
3791}
3792#endif
3793
622e3f9b
LC		 3794static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3795 struct ieee80211_vif *vif,
3796 struct ieee80211_channel_switch *chsw)
3797{
3798 /* By implementing this operation, we prevent mac80211 from
3799 * starting its own channel switch timer, so that we can call
3800 * ieee80211_chswitch_done() ourselves at the right time
3801 * (which is when the absence time event starts).
3802 */
3803
3804 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3805 "dummy channel switch op\n");
3806}
3807
f028905c
LC		 3808static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3809 struct ieee80211_vif *vif,
3810 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3811{
3812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3813 struct ieee80211_vif *csa_vif;
f6c34820 3814 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3815 u32 apply_time;
f028905c 3816 int ret;
bd3398e2
AO		 3817
3818 mutex_lock(&mvm->mutex);
664322fa 3819
81d62d5a
JB		 3820 mvmvif->csa_failed = false;
3821
6b20d774 3822 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3823 chsw->chandef.center_freq1);
6b20d774 3824
21023b1e 3825 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3826
6b20d774
LC		 3827 switch (vif->type) {
3828 case NL80211_IFTYPE_AP:
3829 csa_vif =
3830 rcu_dereference_protected(mvm->csa_vif,
3831 lockdep_is_held(&mvm->mutex));
3832 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3833 "Another CSA is already in progress")) {
3834 ret = -EBUSY;
3835 goto out_unlock;
3836 }
3837
3838 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3839
7ef0aab6
AO		 3840 if (WARN_ONCE(mvmvif->csa_countdown,
3841 "Previous CSA countdown didn't complete")) {
3842 ret = -EBUSY;
3843 goto out_unlock;
3844 }
3845
6b20d774 3846 break;
dc88b4ba 3847 case NL80211_IFTYPE_STATION:
4500e133
LC		 3848 /* Schedule the time event to a bit before beacon 1,
3849 * to make sure we're in the new channel when the
3850 * GO/AP arrives.
3851 */
3852 apply_time = chsw->device_timestamp +
3853 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3854 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3855
3856 if (chsw->block_tx)
3857 iwl_mvm_csa_client_absent(mvm, vif);
3858
4500e133 3859 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3860 apply_time);
c6e0a3e0
LC		 3861 if (mvmvif->bf_data.bf_enabled) {
3862 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3863 if (ret)
3864 goto out_unlock;
3865 }
3866
dc88b4ba 3867 break;
6b20d774
LC		 3868 default:
3869 break;
3870 }
bd3398e2 3871
f6c34820
LC		 3872 mvmvif->ps_disabled = true;
3873
3874 ret = iwl_mvm_power_update_ps(mvm);
3875 if (ret)
3876 goto out_unlock;
f028905c 3877
e198f5e7
AN		 3878 /* we won't be on this channel any longer */
3879 iwl_mvm_teardown_tdls_peers(mvm);
3880
bd3398e2
AO		 3881out_unlock:
3882 mutex_unlock(&mvm->mutex);
f028905c
LC		 3883
3884 return ret;
bd3398e2
AO		 3885}
3886
f6c34820
LC		 3887static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3888 struct ieee80211_vif *vif)
3889{
3890 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3892 int ret;
3893
3894 mutex_lock(&mvm->mutex);
3895
81d62d5a
JB		 3896 if (mvmvif->csa_failed) {
3897 mvmvif->csa_failed = false;
3898 ret = -EIO;
3899 goto out_unlock;
3900 }
3901
a57c688d
LC		 3902 if (vif->type == NL80211_IFTYPE_STATION) {
3903 struct iwl_mvm_sta *mvmsta;
3904
3905 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3906 mvmvif->ap_sta_id);
3907
3908 if (WARN_ON(!mvmsta)) {
3909 ret = -EIO;
3910 goto out_unlock;
3911 }
3912
3913 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3914
3915 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3916
3917 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3918 if (ret)
3919 goto out_unlock;
686e7fe1
LC		 3920
3921 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3922 }
3923
f6c34820
LC		 3924 mvmvif->ps_disabled = false;
3925
3926 ret = iwl_mvm_power_update_ps(mvm);
3927
a57c688d 3928out_unlock:
f6c34820
LC		 3929 mutex_unlock(&mvm->mutex);
3930
3931 return ret;
3932}
3933
c5b0e7c0
EG		 3934static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3935 struct ieee80211_vif *vif, u32 queues, bool drop)
3936{
3937 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3938 struct iwl_mvm_vif *mvmvif;
3939 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3940 struct ieee80211_sta *sta;
3941 int i;
3942 u32 msk = 0;
c5b0e7c0
EG		 3943
3944 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3945 return;
3946
3947 mutex_lock(&mvm->mutex);
3948 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3949
a0f6bf2a
AN		 3950 /* flush the AP-station and all TDLS peers */
3951 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3952 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3953 lockdep_is_held(&mvm->mutex));
3954 if (IS_ERR_OR_NULL(sta))
3955 continue;
3956
3957 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3958 if (mvmsta->vif != vif)
3959 continue;
3960
3961 /* make sure only TDLS peers or the AP are flushed */
3962 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3963
3964 msk |= mvmsta->tfd_queue_msk;
480acbce 3965 }
c5b0e7c0 3966
6d440b25 3967 if (drop) {
5888a40c 3968 if (iwl_mvm_flush_tx_path(mvm, msk, 0))
6d440b25
EG		 3969 IWL_ERR(mvm, "flush request fail\n");
3970 mutex_unlock(&mvm->mutex);
3971 } else {
3972 mutex_unlock(&mvm->mutex);
4e6c48e0 3973
6d440b25
EG		 3974 /* this can take a while, and we may need/want other operations
3975 * to succeed while doing this, so do it without the mutex held
3976 */
3977 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3978 }
c5b0e7c0
EG		 3979}
3980
91a8bcde
JB		 3981static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3982 struct survey_info *survey)
3983{
3984 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3985 int ret;
3986
3987 memset(survey, 0, sizeof(*survey));
3988
3989 /* only support global statistics right now */
3990 if (idx != 0)
3991 return -ENOENT;
3992
859d914c 3993 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3994 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3995 return -ENOENT;
3996
3997 mutex_lock(&mvm->mutex);
3998
3999 if (mvm->ucode_loaded) {
33cef925 4000 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 4001 if (ret)
4002 goto out;
4003 }
4004
4005 survey->filled = SURVEY_INFO_TIME |
4006 SURVEY_INFO_TIME_RX |
4007 SURVEY_INFO_TIME_TX |
4008 SURVEY_INFO_TIME_SCAN;
4009 survey->time = mvm->accu_radio_stats.on_time_rf +
4010 mvm->radio_stats.on_time_rf;
4011 do_div(survey->time, USEC_PER_MSEC);
4012
4013 survey->time_rx = mvm->accu_radio_stats.rx_time +
4014 mvm->radio_stats.rx_time;
4015 do_div(survey->time_rx, USEC_PER_MSEC);
4016
4017 survey->time_tx = mvm->accu_radio_stats.tx_time +
4018 mvm->radio_stats.tx_time;
4019 do_div(survey->time_tx, USEC_PER_MSEC);
4020
4021 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4022 mvm->radio_stats.on_time_scan;
4023 do_div(survey->time_scan, USEC_PER_MSEC);
4024
10a7c028 4025 ret = 0;
91a8bcde
JB		 4026 out:
4027 mutex_unlock(&mvm->mutex);
4028 return ret;
4029}
4030
33cef925
JB		 4031static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
4032 struct ieee80211_vif *vif,
4033 struct ieee80211_sta *sta,
4034 struct station_info *sinfo)
4035{
4036 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4037 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4038 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
4039
859d914c
JB		 4040 if (fw_has_capa(&mvm->fw->ucode_capa,
4041 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 4042 return;
4043
4044 /* if beacon filtering isn't on mac80211 does it anyway */
4045 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
4046 return;
4047
4048 if (!vif->bss_conf.assoc)
4049 return;
4050
4051 mutex_lock(&mvm->mutex);
4052
4053 if (mvmvif->ap_sta_id != mvmsta->sta_id)
4054 goto unlock;
4055
4056 if (iwl_mvm_request_statistics(mvm, false))
4057 goto unlock;
4058
4059 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
4060 mvmvif->beacon_stats.accu_num_beacons;
4061 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
4062 if (mvmvif->beacon_stats.avg_signal) {
4063 /* firmware only reports a value after RXing a few beacons */
4064 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4065 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4066 }
4067 unlock:
4068 mutex_unlock(&mvm->mutex);
4069}
4070
4203263d
EG		 4071static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4072 struct ieee80211_vif *vif,
4073 const struct ieee80211_event *event)
d42f5350 4074{
5d4f929e 4075#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 4076 do { \
4077 if ((_cnt) && --(_cnt)) \
4078 break; \
5d4f929e 4079 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 4080 } while (0)
4081
d42f5350
EG		 4082 struct iwl_fw_dbg_trigger_tlv *trig;
4083 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4084
4085 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4086 return;
4087
d42f5350
EG		 4088 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4089 trig_mlme = (void *)trig->data;
4090 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4091 return;
4092
d42f5350
EG		 4093 if (event->u.mlme.data == ASSOC_EVENT) {
4094 if (event->u.mlme.status == MLME_DENIED)
4095 CHECK_MLME_TRIGGER(mvm, trig, buf,
4096 trig_mlme->stop_assoc_denied,
4097 "DENIED ASSOC: reason %d",
4098 event->u.mlme.reason);
4099 else if (event->u.mlme.status == MLME_TIMEOUT)
4100 CHECK_MLME_TRIGGER(mvm, trig, buf,
4101 trig_mlme->stop_assoc_timeout,
4102 "ASSOC TIMEOUT");
4103 } else if (event->u.mlme.data == AUTH_EVENT) {
4104 if (event->u.mlme.status == MLME_DENIED)
4105 CHECK_MLME_TRIGGER(mvm, trig, buf,
4106 trig_mlme->stop_auth_denied,
4107 "DENIED AUTH: reason %d",
4108 event->u.mlme.reason);
4109 else if (event->u.mlme.status == MLME_TIMEOUT)
4110 CHECK_MLME_TRIGGER(mvm, trig, buf,
4111 trig_mlme->stop_auth_timeout,
4112 "AUTH TIMEOUT");
4113 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4114 CHECK_MLME_TRIGGER(mvm, trig, buf,
4115 trig_mlme->stop_rx_deauth,
4116 "DEAUTH RX %d", event->u.mlme.reason);
4117 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4118 CHECK_MLME_TRIGGER(mvm, trig, buf,
4119 trig_mlme->stop_tx_deauth,
4120 "DEAUTH TX %d", event->u.mlme.reason);
4121 }
4122#undef CHECK_MLME_TRIGGER
4123}
4124
4203263d
EG		 4125static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4126 struct ieee80211_vif *vif,
4127 const struct ieee80211_event *event)
4128{
4129 struct iwl_fw_dbg_trigger_tlv *trig;
4130 struct iwl_fw_dbg_trigger_ba *ba_trig;
4131
4132 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4133 return;
4134
4135 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4136 ba_trig = (void *)trig->data;
4137 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4138 return;
4139
4140 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4141 return;
4142
4143 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4144 "BAR received from %pM, tid %d, ssn %d",
4145 event->u.ba.sta->addr, event->u.ba.tid,
4146 event->u.ba.ssn);
4147}
4148
4149static void
4150iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4151 struct ieee80211_vif *vif,
4152 const struct ieee80211_event *event)
4153{
4154 struct iwl_fw_dbg_trigger_tlv *trig;
4155 struct iwl_fw_dbg_trigger_ba *ba_trig;
4156
4157 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4158 return;
4159
4160 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4161 ba_trig = (void *)trig->data;
4162 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4163 return;
4164
4165 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4166 return;
4167
4168 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4169 "Frame from %pM timed out, tid %d",
4170 event->u.ba.sta->addr, event->u.ba.tid);
4171}
4172
4173static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4174 struct ieee80211_vif *vif,
4175 const struct ieee80211_event *event)
4176{
4177 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4178
4179 switch (event->type) {
4180 case MLME_EVENT:
4181 iwl_mvm_event_mlme_callback(mvm, vif, event);
4182 break;
4183 case BAR_RX_EVENT:
4184 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4185 break;
4186 case BA_FRAME_TIMEOUT:
4187 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4188 break;
4189 default:
4190 break;
4191 }
4192}
4193
e5209263 4194const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4195 .tx = iwl_mvm_mac_tx,
4196 .ampdu_action = iwl_mvm_mac_ampdu_action,
4197 .start = iwl_mvm_mac_start,
cf2c92d8 4198 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4199 .stop = iwl_mvm_mac_stop,
4200 .add_interface = iwl_mvm_mac_add_interface,
4201 .remove_interface = iwl_mvm_mac_remove_interface,
4202 .config = iwl_mvm_mac_config,
e59647ea 4203 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5 4204 .configure_filter = iwl_mvm_configure_filter,
effd1929 4205 .config_iface_filter = iwl_mvm_config_iface_filter,
8ca151b5
JB		 4206 .bss_info_changed = iwl_mvm_bss_info_changed,
4207 .hw_scan = iwl_mvm_mac_hw_scan,
4208 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4209 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4210 .sta_state = iwl_mvm_mac_sta_state,
4211 .sta_notify = iwl_mvm_mac_sta_notify,
4212 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4213 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4214 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4215 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4216 .conf_tx = iwl_mvm_mac_conf_tx,
4217 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4218 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4219 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4220 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4221 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4222 .set_key = iwl_mvm_mac_set_key,
4223 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4224 .remain_on_channel = iwl_mvm_roc,
4225 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4226 .add_chanctx = iwl_mvm_add_chanctx,
4227 .remove_chanctx = iwl_mvm_remove_chanctx,
4228 .change_chanctx = iwl_mvm_change_chanctx,
4229 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4230 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4231 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4232
5023d966
JB		 4233 .start_ap = iwl_mvm_start_ap_ibss,
4234 .stop_ap = iwl_mvm_stop_ap_ibss,
4235 .join_ibss = iwl_mvm_start_ap_ibss,
4236 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4237
4238 .set_tim = iwl_mvm_set_tim,
4239
622e3f9b 4240 .channel_switch = iwl_mvm_channel_switch,
f028905c 4241 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4242 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4243
1d3c3f63
AN		 4244 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4245 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4246 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4247
d42f5350
EG		 4248 .event_callback = iwl_mvm_mac_event_callback,
4249
507cadf2
DS		 4250 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4251
8ca151b5
JB		 4252#ifdef CONFIG_PM_SLEEP
4253 /* look at d3.c */
4254 .suspend = iwl_mvm_suspend,
4255 .resume = iwl_mvm_resume,
4256 .set_wakeup = iwl_mvm_set_wakeup,
4257 .set_rekey_data = iwl_mvm_set_rekey_data,
4258#if IS_ENABLED(CONFIG_IPV6)
4259 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4260#endif
4261 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4262#endif
91a8bcde 4263 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4264 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4265};
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