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iwlwifi: make various functions void in the file rs.c
[deliverable/linux.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
CommitLineData
8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
14 *
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
23 * USA
24 *
25 * The full GNU General Public License is included in this distribution
410dc5aa 26 * in the file called COPYING.
8ca151b5
JB		 27 *
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 *
32 * BSD LICENSE
33 *
51368bf7 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
8b4139dc 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
8ca151b5
JB		 36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 *
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
47 * distribution.
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *
64 *****************************************************************************/
65#include <linux/kernel.h>
66#include <linux/slab.h>
67#include <linux/skbuff.h>
68#include <linux/netdevice.h>
69#include <linux/etherdevice.h>
f0c2646a 70#include <linux/ip.h>
2ee8f021 71#include <linux/if_arp.h>
aadede6e 72#include <linux/devcoredump.h>
8ca151b5 73#include <net/mac80211.h>
7b1dd048 74#include <net/ieee80211_radiotap.h>
f0c2646a 75#include <net/tcp.h>
8ca151b5
JB		 76
77#include "iwl-op-mode.h"
78#include "iwl-io.h"
79#include "mvm.h"
80#include "sta.h"
81#include "time-event.h"
82#include "iwl-eeprom-parse.h"
8ca151b5 83#include "iwl-phy-db.h"
507cadf2 84#include "testmode.h"
655e6d6d
EG		 85#include "iwl-fw-error-dump.h"
86#include "iwl-prph.h"
363039be 87#include "iwl-csr.h"
88931cc9 88#include "iwl-nvm-parse.h"
8ca151b5
JB		 89
90static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
91 {
92 .max = 1,
8eb38710 93 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 94 },
3c15a0fb
JB		 95 {
96 .max = 1,
8eb38710
IP		 97 .types = BIT(NL80211_IFTYPE_AP) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 99 BIT(NL80211_IFTYPE_P2P_GO),
100 },
101 {
102 .max = 1,
103 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
104 },
8ca151b5
JB		 105};
106
107static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
108 {
2624a5ca 109 .num_different_channels = 2,
8ca151b5
JB		 110 .max_interfaces = 3,
111 .limits = iwl_mvm_limits,
112 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
113 },
114};
115
f0c2646a
JB		 116#ifdef CONFIG_PM_SLEEP
117static const struct nl80211_wowlan_tcp_data_token_feature
118iwl_mvm_wowlan_tcp_token_feature = {
119 .min_len = 0,
120 .max_len = 255,
121 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
122};
123
124static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
125 .tok = &iwl_mvm_wowlan_tcp_token_feature,
126 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
127 sizeof(struct ethhdr) -
128 sizeof(struct iphdr) -
129 sizeof(struct tcphdr),
130 .data_interval_max = 65535, /* __le16 in API */
131 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
132 sizeof(struct ethhdr) -
133 sizeof(struct iphdr) -
134 sizeof(struct tcphdr),
135 .seq = true,
136};
137#endif
138
77736923 139#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 140/*
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
147 * be skipped.
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
150 */
151enum {
152 BC_FILTER_MAGIC_NONE = 0,
153 BC_FILTER_MAGIC_IP,
154 BC_FILTER_MAGIC_MAC,
155};
156
77736923
EP		 157static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
158 {
159 /* arp */
160 .discard = 0,
161 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
162 .attrs = {
163 {
164 /* frame type - arp, hw type - ethernet */
165 .offset_type =
166 BCAST_FILTER_OFFSET_PAYLOAD_START,
167 .offset = sizeof(rfc1042_header),
168 .val = cpu_to_be32(0x08060001),
169 .mask = cpu_to_be32(0xffffffff),
170 },
2ee8f021
EP		 171 {
172 /* arp dest ip */
173 .offset_type =
174 BCAST_FILTER_OFFSET_PAYLOAD_START,
175 .offset = sizeof(rfc1042_header) + 2 +
176 sizeof(struct arphdr) +
177 ETH_ALEN + sizeof(__be32) +
178 ETH_ALEN,
179 .mask = cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
182 },
183 },
184 },
185 {
186 /* dhcp offer bcast */
187 .discard = 0,
188 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
189 .attrs = {
190 {
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type = BCAST_FILTER_OFFSET_IP_END,
193 .offset = offsetof(struct udphdr, dest),
194 .val = cpu_to_be32(0x00440000),
195 .mask = cpu_to_be32(0xffff0000),
196 },
197 {
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type = BCAST_FILTER_OFFSET_IP_END,
200 .offset = 38,
201 .mask = cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
204 },
77736923
EP		 205 },
206 },
207 /* last filter must be empty */
208 {},
209};
210#endif
211
7498cf4c
EP		 212void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
213{
7bb426ea 214 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 215 return;
216
217 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 218 spin_lock_bh(&mvm->refs_lock);
219 mvm->refs[ref_type]++;
220 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 221 iwl_trans_ref(mvm->trans);
222}
223
224void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
225{
7bb426ea 226 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 227 return;
228
229 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 230 spin_lock_bh(&mvm->refs_lock);
231 WARN_ON(!mvm->refs[ref_type]--);
232 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 233 iwl_trans_unref(mvm->trans);
234}
235
576eeee9
EP		 236static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
237 enum iwl_mvm_ref_type except_ref)
7498cf4c 238{
576eeee9 239 int i, j;
7498cf4c 240
7bb426ea 241 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 242 return;
243
576eeee9
EP		 244 spin_lock_bh(&mvm->refs_lock);
245 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
246 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 247 continue;
248
576eeee9
EP		 249 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
250 i, mvm->refs[i]);
251 for (j = 0; j < mvm->refs[i]; j++)
252 iwl_trans_unref(mvm->trans);
253 mvm->refs[i] = 0;
7498cf4c 254 }
576eeee9 255 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 256}
257
f4cf8680
EP		 258bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
259{
260 int i;
261 bool taken = false;
262
263 if (!iwl_mvm_is_d0i3_supported(mvm))
264 return true;
265
266 spin_lock_bh(&mvm->refs_lock);
267 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
268 if (mvm->refs[i]) {
269 taken = true;
270 break;
271 }
272 }
273 spin_unlock_bh(&mvm->refs_lock);
274
275 return taken;
276}
277
576eeee9 278int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 279{
280 iwl_mvm_ref(mvm, ref_type);
281
282 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
284 HZ)) {
285 WARN_ON_ONCE(1);
286 iwl_mvm_unref(mvm, ref_type);
287 return -EIO;
288 }
289
290 return 0;
291}
292
fe0f2de3
IP		 293static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
294{
295 int i;
296
297 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
298 for (i = 0; i < NUM_PHY_CTX; i++) {
299 mvm->phy_ctxts[i].id = i;
300 mvm->phy_ctxts[i].ref = 0;
301 }
302}
303
88931cc9 304struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
8ba2d7a1 305 const char *alpha2,
47c8b154
JD		 306 enum iwl_mcc_source src_id,
307 bool *changed)
88931cc9
AN		 308{
309 struct ieee80211_regdomain *regd = NULL;
310 struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
311 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
312 struct iwl_mcc_update_resp *resp;
313
314 IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
315
8ba2d7a1 316 lockdep_assert_held(&mvm->mutex);
88931cc9 317
8ba2d7a1 318 resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
88931cc9
AN		 319 if (IS_ERR_OR_NULL(resp)) {
320 IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
b8c474d9 321 PTR_ERR_OR_ZERO(resp));
8ba2d7a1 322 goto out;
88931cc9
AN		 323 }
324
47c8b154
JD		 325 if (changed)
326 *changed = (resp->status == MCC_RESP_NEW_CHAN_PROFILE);
327
162ee3c9 328 regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
88931cc9
AN		 329 __le32_to_cpu(resp->n_channels),
330 resp->channels,
331 __le16_to_cpu(resp->mcc));
8ba2d7a1
EH		 332 /* Store the return source id */
333 src_id = resp->source_id;
88931cc9
AN		 334 kfree(resp);
335 if (IS_ERR_OR_NULL(regd)) {
336 IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
b8c474d9 337 PTR_ERR_OR_ZERO(regd));
8ba2d7a1 338 goto out;
88931cc9
AN		 339 }
340
8ba2d7a1
EH		 341 IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
88931cc9 343 mvm->lar_regdom_set = true;
8ba2d7a1 344 mvm->mcc_src = src_id;
88931cc9 345
8ba2d7a1 346out:
88931cc9
AN		 347 return regd;
348}
349
47c8b154
JD		 350void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
351{
352 bool changed;
353 struct ieee80211_regdomain *regd;
354
355 if (!iwl_mvm_is_lar_supported(mvm))
356 return;
357
358 regd = iwl_mvm_get_current_regdomain(mvm, &changed);
359 if (!IS_ERR_OR_NULL(regd)) {
360 /* only update the regulatory core if changed */
361 if (changed)
362 regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
363
364 kfree(regd);
365 }
366}
367
368struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
369 bool *changed)
8ba2d7a1
EH		 370{
371 return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm) ?
373 MCC_SOURCE_GET_CURRENT :
47c8b154 374 MCC_SOURCE_OLD_FW, changed);
8ba2d7a1
EH		 375}
376
377int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
378{
379 enum iwl_mcc_source used_src;
380 struct ieee80211_regdomain *regd;
b6e160ab
AN		 381 int ret;
382 bool changed;
8ba2d7a1
EH		 383 const struct ieee80211_regdomain *r =
384 rtnl_dereference(mvm->hw->wiphy->regd);
385
386 if (!r)
b6e160ab 387 return -ENOENT;
8ba2d7a1
EH		 388
389 /* save the last source in case we overwrite it below */
390 used_src = mvm->mcc_src;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
392 /* Notify the firmware we support wifi location updates */
47c8b154 393 regd = iwl_mvm_get_current_regdomain(mvm, NULL);
8ba2d7a1
EH		 394 if (!IS_ERR_OR_NULL(regd))
395 kfree(regd);
396 }
397
398 /* Now set our last stored MCC and source */
b6e160ab
AN		 399 regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
400 &changed);
8ba2d7a1
EH		 401 if (IS_ERR_OR_NULL(regd))
402 return -EIO;
403
b6e160ab
AN		 404 /* update cfg80211 if the regdomain was changed */
405 if (changed)
406 ret = regulatory_set_wiphy_regd_sync_rtnl(mvm->hw->wiphy, regd);
407 else
408 ret = 0;
8ba2d7a1 409
b6e160ab
AN		 410 kfree(regd);
411 return ret;
8ba2d7a1
EH		 412}
413
8ca151b5
JB		 414int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
415{
416 struct ieee80211_hw *hw = mvm->hw;
831e85f3 417 int num_mac, ret, i;
5f4c02e2
JB		 418 static const u32 mvm_ciphers[] = {
419 WLAN_CIPHER_SUITE_WEP40,
420 WLAN_CIPHER_SUITE_WEP104,
421 WLAN_CIPHER_SUITE_TKIP,
422 WLAN_CIPHER_SUITE_CCMP,
423 };
8ca151b5
JB		 424
425 /* Tell mac80211 our characteristics */
30686bf7
JB		 426 ieee80211_hw_set(hw, SIGNAL_DBM);
427 ieee80211_hw_set(hw, SPECTRUM_MGMT);
428 ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
429 ieee80211_hw_set(hw, QUEUE_CONTROL);
430 ieee80211_hw_set(hw, WANT_MONITOR_VIF);
431 ieee80211_hw_set(hw, SUPPORTS_PS);
432 ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
433 ieee80211_hw_set(hw, AMPDU_AGGREGATION);
434 ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
435 ieee80211_hw_set(hw, CONNECTION_MONITOR);
436 ieee80211_hw_set(hw, CHANCTX_STA_CSA);
437 ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
438 ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
8ca151b5 439
19e737c9 440 hw->queues = mvm->first_agg_queue;
398e8c6c 441 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 442 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
443 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 444 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
445 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 446 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 447 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
448 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5 449
5f4c02e2
JB		 450 BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 2);
451 memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
452 hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
453 hw->wiphy->cipher_suites = mvm->ciphers;
454
8ca151b5
JB		 455 /*
456 * Enable 11w if advertised by firmware and software crypto
457 * is not enabled (as the firmware will interpret some mgmt
458 * packets, so enabling it with software crypto isn't safe)
459 */
460 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
5f4c02e2 461 !iwlwifi_mod_params.sw_crypto) {
30686bf7 462 ieee80211_hw_set(hw, MFP_CAPABLE);
5f4c02e2
JB		 463 mvm->ciphers[hw->wiphy->n_cipher_suites] =
464 WLAN_CIPHER_SUITE_AES_CMAC;
465 hw->wiphy->n_cipher_suites++;
466 }
467
468 /* currently FW API supports only one optional cipher scheme */
469 if (mvm->fw->cs[0].cipher) {
470 mvm->hw->n_cipher_schemes = 1;
471 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
472 mvm->ciphers[hw->wiphy->n_cipher_suites] =
473 mvm->fw->cs[0].cipher;
474 hw->wiphy->n_cipher_suites++;
475 }
8ca151b5 476
30686bf7 477 ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
1f940386
LC		 478 hw->wiphy->features |=
479 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 480 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
481 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 482
8ca151b5
JB		 483 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
484 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 485 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 486
487 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 488 BIT(NL80211_IFTYPE_P2P_CLIENT) |
489 BIT(NL80211_IFTYPE_AP) |
490 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 491 BIT(NL80211_IFTYPE_P2P_DEVICE) |
492 BIT(NL80211_IFTYPE_ADHOC);
5023d966 493
a2f73b6c 494 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 495 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
496 if (iwl_mvm_is_lar_supported(mvm))
497 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
498 else
499 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
500 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 501
3e56eadf
JB		 502 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
503 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
504
94bbed72 505 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 506
8ca151b5
JB		 507 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
508 hw->wiphy->n_iface_combinations =
509 ARRAY_SIZE(iwl_mvm_iface_combinations);
510
c451e6d4 511 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 512 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 513 /* we can compensate an offset of up to 3 channels = 15 MHz */
514 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 515
516 /* Extract MAC address */
517 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
518 hw->wiphy->addresses = mvm->addresses;
519 hw->wiphy->n_addresses = 1;
831e85f3
IP		 520
521 /* Extract additional MAC addresses if available */
522 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
523 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
524
525 for (i = 1; i < num_mac; i++) {
526 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 527 ETH_ALEN);
831e85f3 528 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 529 hw->wiphy->n_addresses++;
530 }
531
fe0f2de3
IP		 532 iwl_mvm_reset_phy_ctxts(mvm);
533
999d2568 534 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 535
8ca151b5
JB		 536 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
537
c7d42480 538 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 539 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
540 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
541
859d914c 542 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 543 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
544 else
545 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
546
8ca151b5
JB		 547 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
548 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
549 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 550 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 551 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
552 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
553
859d914c
JB		 554 if (fw_has_capa(&mvm->fw->ucode_capa,
555 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
556 fw_has_api(&mvm->fw->ucode_capa,
557 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 558 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
559 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
560 }
561
8ca151b5
JB		 562 hw->wiphy->hw_version = mvm->trans->hw_id;
563
ade50652 564 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 565 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
566 else
567 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
568
9954b37c
EG		 569 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
570 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
571 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
572 /* we create the 802.11 header and zero length SSID IE. */
573 hw->wiphy->max_sched_scan_ie_len =
574 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 575
8ca151b5 576 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 577 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 578 NL80211_FEATURE_P2P_GO_OPPPS |
579 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 580 NL80211_FEATURE_STATIC_SMPS |
581 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 582
859d914c
JB		 583 if (fw_has_capa(&mvm->fw->ucode_capa,
584 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 585 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 586 if (fw_has_capa(&mvm->fw->ucode_capa,
587 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 588 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 589
859d914c
JB		 590 if (fw_has_capa(&mvm->fw->ucode_capa,
591 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 592 hw->wiphy->features |=
593 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
594
859d914c
JB		 595 if (fw_has_capa(&mvm->fw->ucode_capa,
596 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 597 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
598
8ca151b5
JB		 599 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
600
601#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 602 if (iwl_mvm_is_d0i3_supported(mvm) &&
603 device_can_wakeup(mvm->trans->dev)) {
604 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
605 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 606 }
607
608 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 609 mvm->trans->ops->d3_suspend &&
610 mvm->trans->ops->d3_resume &&
611 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 612 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
613 WIPHY_WOWLAN_DISCONNECT |
614 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
615 WIPHY_WOWLAN_RFKILL_RELEASE |
616 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 617 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 618 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
619 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
620 WIPHY_WOWLAN_4WAY_HANDSHAKE;
621
622 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
623 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
624 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 625 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 626 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
627 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 628 }
629#endif
630
77736923
EP		 631#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
632 /* assign default bcast filtering configuration */
633 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
634#endif
635
8ca151b5
JB		 636 ret = iwl_mvm_leds_init(mvm);
637 if (ret)
638 return ret;
639
859d914c
JB		 640 if (fw_has_capa(&mvm->fw->ucode_capa,
641 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 642 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
643 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
644 }
645
859d914c
JB		 646 if (fw_has_capa(&mvm->fw->ucode_capa,
647 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 648 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
649 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
650 }
651
93190fb0
AA		 652 hw->netdev_features |= mvm->cfg->features;
653 if (!iwl_mvm_is_csum_supported(mvm))
654 hw->netdev_features &= ~NETIF_F_RXCSUM;
655
b7327d89
EG		 656 ret = ieee80211_register_hw(mvm->hw);
657 if (ret)
658 iwl_mvm_leds_exit(mvm);
659
660 return ret;
8ca151b5
JB		 661}
662
b2492501
AN		 663static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
664 struct ieee80211_sta *sta,
665 struct sk_buff *skb)
666{
667 struct iwl_mvm_sta *mvmsta;
668 bool defer = false;
669
670 /*
671 * double check the IN_D0I3 flag both before and after
672 * taking the spinlock, in order to prevent taking
673 * the spinlock when not needed.
674 */
675 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
676 return false;
677
678 spin_lock(&mvm->d0i3_tx_lock);
679 /*
680 * testing the flag again ensures the skb dequeue
681 * loop (on d0i3 exit) hasn't run yet.
682 */
683 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
684 goto out;
685
686 mvmsta = iwl_mvm_sta_from_mac80211(sta);
687 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
688 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
689 goto out;
690
691 __skb_queue_tail(&mvm->d0i3_tx, skb);
692 ieee80211_stop_queues(mvm->hw);
693
694 /* trigger wakeup */
695 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
696 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
697
698 defer = true;
699out:
700 spin_unlock(&mvm->d0i3_tx_lock);
701 return defer;
702}
703
8ca151b5
JB		 704static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
705 struct ieee80211_tx_control *control,
706 struct sk_buff *skb)
707{
708 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 709 struct ieee80211_sta *sta = control->sta;
710 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
711 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 712
9ee718aa
EL		 713 if (iwl_mvm_is_radio_killed(mvm)) {
714 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 715 goto drop;
716 }
717
398e8c6c 718 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 719 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
720 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 721 goto drop;
722
3e56eadf
JB		 723 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
724 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
725 ieee80211_is_mgmt(hdr->frame_control) &&
726 !ieee80211_is_deauth(hdr->frame_control) &&
727 !ieee80211_is_disassoc(hdr->frame_control) &&
728 !ieee80211_is_action(hdr->frame_control)))
729 sta = NULL;
730
731 if (sta) {
b2492501
AN		 732 if (iwl_mvm_defer_tx(mvm, sta, skb))
733 return;
3e56eadf 734 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 735 goto drop;
736 return;
737 }
738
739 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
740 goto drop;
741 return;
742 drop:
743 ieee80211_free_txskb(hw, skb);
744}
745
205e2210
EG		 746static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
747{
748 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
749 return false;
750 return true;
751}
752
753static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
754{
755 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
756 return false;
757 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
758 return true;
759
760 /* enabled by default */
761 return true;
762}
763
4203263d
EG		 764#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
765 do { \
766 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
767 break; \
768 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
769 } while (0)
770
771static void
772iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
773 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
774 enum ieee80211_ampdu_mlme_action action)
775{
776 struct iwl_fw_dbg_trigger_tlv *trig;
777 struct iwl_fw_dbg_trigger_ba *ba_trig;
778
779 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
780 return;
781
782 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
783 ba_trig = (void *)trig->data;
784
785 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
786 return;
787
788 switch (action) {
789 case IEEE80211_AMPDU_TX_OPERATIONAL: {
790 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
791 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
792
793 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
794 "TX AGG START: MAC %pM tid %d ssn %d\n",
795 sta->addr, tid, tid_data->ssn);
796 break;
797 }
798 case IEEE80211_AMPDU_TX_STOP_CONT:
799 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
800 "TX AGG STOP: MAC %pM tid %d\n",
801 sta->addr, tid);
802 break;
803 case IEEE80211_AMPDU_RX_START:
804 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
805 "RX AGG START: MAC %pM tid %d ssn %d\n",
806 sta->addr, tid, rx_ba_ssn);
807 break;
808 case IEEE80211_AMPDU_RX_STOP:
809 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
810 "RX AGG STOP: MAC %pM tid %d\n",
811 sta->addr, tid);
812 break;
813 default:
814 break;
815 }
816}
817
8ca151b5
JB		 818static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
819 struct ieee80211_vif *vif,
820 enum ieee80211_ampdu_mlme_action action,
821 struct ieee80211_sta *sta, u16 tid,
822 u16 *ssn, u8 buf_size)
823{
824 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
825 int ret;
b2492501 826 bool tx_agg_ref = false;
8ca151b5
JB		 827
828 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
829 sta->addr, tid, action);
830
831 if (!(mvm->nvm_data->sku_cap_11n_enable))
832 return -EACCES;
833
b2492501 834 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 835 switch (action) {
836 case IEEE80211_AMPDU_TX_START:
837 case IEEE80211_AMPDU_TX_STOP_CONT:
838 case IEEE80211_AMPDU_TX_STOP_FLUSH:
839 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
840 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 841 /*
9256c205
EP		 842 * for tx start, wait synchronously until D0i3 exit to
843 * get the correct sequence number for the tid.
844 * additionally, some other ampdu actions use direct
845 * target access, which is not handled automatically
846 * by the trans layer (unlike commands), so wait for
847 * d0i3 exit in these cases as well.
b2492501 848 */
d40fc489
GG		 849 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
850 if (ret)
851 return ret;
852
853 tx_agg_ref = true;
9256c205
EP		 854 break;
855 default:
856 break;
b2492501
AN		 857 }
858
8ca151b5
JB		 859 mutex_lock(&mvm->mutex);
860
861 switch (action) {
862 case IEEE80211_AMPDU_RX_START:
205e2210 863 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 864 ret = -EINVAL;
865 break;
866 }
867 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
868 break;
869 case IEEE80211_AMPDU_RX_STOP:
870 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
871 break;
872 case IEEE80211_AMPDU_TX_START:
205e2210 873 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 874 ret = -EINVAL;
875 break;
876 }
8ca151b5
JB		 877 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
878 break;
879 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 880 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
881 break;
8ca151b5
JB		 882 case IEEE80211_AMPDU_TX_STOP_FLUSH:
883 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 884 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 885 break;
886 case IEEE80211_AMPDU_TX_OPERATIONAL:
887 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
888 break;
889 default:
890 WARN_ON_ONCE(1);
891 ret = -EINVAL;
892 break;
893 }
4203263d
EG		 894
895 if (!ret) {
896 u16 rx_ba_ssn = 0;
897
898 if (action == IEEE80211_AMPDU_RX_START)
899 rx_ba_ssn = *ssn;
900
901 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
902 rx_ba_ssn, action);
903 }
8ca151b5
JB		 904 mutex_unlock(&mvm->mutex);
905
b2492501
AN		 906 /*
907 * If the tid is marked as started, we won't use it for offloaded
908 * traffic on the next D0i3 entry. It's safe to unref.
909 */
910 if (tx_agg_ref)
911 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
912
8ca151b5
JB		 913 return ret;
914}
915
916static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
917 struct ieee80211_vif *vif)
918{
919 struct iwl_mvm *mvm = data;
920 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
921
922 mvmvif->uploaded = false;
923 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
924
8ca151b5
JB		 925 spin_lock_bh(&mvm->time_event_lock);
926 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
927 spin_unlock_bh(&mvm->time_event_lock);
928
fe0f2de3 929 mvmvif->phy_ctxt = NULL;
8a275bad 930 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 931}
932
aadede6e
JB		 933static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
934 const void *data, size_t datalen)
935{
936 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
937 ssize_t bytes_read;
938 ssize_t bytes_read_trans;
939
940 if (offset < dump_ptrs->op_mode_len) {
941 bytes_read = min_t(ssize_t, count,
942 dump_ptrs->op_mode_len - offset);
943 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
944 bytes_read);
945 offset += bytes_read;
946 count -= bytes_read;
947
948 if (count == 0)
949 return bytes_read;
950 } else {
951 bytes_read = 0;
952 }
953
954 if (!dump_ptrs->trans_ptr)
955 return bytes_read;
956
957 offset -= dump_ptrs->op_mode_len;
958 bytes_read_trans = min_t(ssize_t, count,
959 dump_ptrs->trans_ptr->len - offset);
960 memcpy(buffer + bytes_read,
961 (u8 *)dump_ptrs->trans_ptr->data + offset,
962 bytes_read_trans);
963
964 return bytes_read + bytes_read_trans;
965}
966
967static void iwl_mvm_free_coredump(const void *data)
968{
969 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
970
971 vfree(fw_error_dump->op_mode_ptr);
972 vfree(fw_error_dump->trans_ptr);
973 kfree(fw_error_dump);
974}
975
04fd2c28
LK		 976static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
977 struct iwl_fw_error_dump_data **dump_data)
978{
979 struct iwl_fw_error_dump_fifo *fifo_hdr;
980 u32 *fifo_data;
981 u32 fifo_len;
982 unsigned long flags;
983 int i, j;
984
985 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
986 return;
987
988 /* Pull RXF data from all RXFs */
989 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
990 /*
991 * Keep aside the additional offset that might be needed for
992 * next RXF
993 */
994 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
995
996 fifo_hdr = (void *)(*dump_data)->data;
997 fifo_data = (void *)fifo_hdr->data;
998 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
999
1000 /* No need to try to read the data if the length is 0 */
1001 if (fifo_len == 0)
1002 continue;
1003
1004 /* Add a TLV for the RXF */
1005 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
1006 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1007
1008 fifo_hdr->fifo_num = cpu_to_le32(i);
1009 fifo_hdr->available_bytes =
1010 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1011 RXF_RD_D_SPACE +
1012 offset_diff));
1013 fifo_hdr->wr_ptr =
1014 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1015 RXF_RD_WR_PTR +
1016 offset_diff));
1017 fifo_hdr->rd_ptr =
1018 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1019 RXF_RD_RD_PTR +
1020 offset_diff));
1021 fifo_hdr->fence_ptr =
1022 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1023 RXF_RD_FENCE_PTR +
1024 offset_diff));
1025 fifo_hdr->fence_mode =
1026 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1027 RXF_SET_FENCE_MODE +
1028 offset_diff));
1029
1030 /* Lock fence */
1031 iwl_trans_write_prph(mvm->trans,
1032 RXF_SET_FENCE_MODE + offset_diff, 0x1);
1033 /* Set fence pointer to the same place like WR pointer */
1034 iwl_trans_write_prph(mvm->trans,
1035 RXF_LD_WR2FENCE + offset_diff, 0x1);
1036 /* Set fence offset */
1037 iwl_trans_write_prph(mvm->trans,
1038 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
1039 0x0);
1040
1041 /* Read FIFO */
1042 fifo_len /= sizeof(u32); /* Size in DWORDS */
1043 for (j = 0; j < fifo_len; j++)
1044 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1045 RXF_FIFO_RD_FENCE_INC +
1046 offset_diff);
1047 *dump_data = iwl_fw_error_next_data(*dump_data);
1048 }
1049
1050 /* Pull TXF data from all TXFs */
1051 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
1052 /* Mark the number of TXF we're pulling now */
1053 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
1054
1055 fifo_hdr = (void *)(*dump_data)->data;
1056 fifo_data = (void *)fifo_hdr->data;
1057 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
1058
1059 /* No need to try to read the data if the length is 0 */
1060 if (fifo_len == 0)
1061 continue;
1062
1063 /* Add a TLV for the FIFO */
1064 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
1065 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1066
1067 fifo_hdr->fifo_num = cpu_to_le32(i);
1068 fifo_hdr->available_bytes =
1069 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1070 TXF_FIFO_ITEM_CNT));
1071 fifo_hdr->wr_ptr =
1072 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1073 TXF_WR_PTR));
1074 fifo_hdr->rd_ptr =
1075 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1076 TXF_RD_PTR));
1077 fifo_hdr->fence_ptr =
1078 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1079 TXF_FENCE_PTR));
1080 fifo_hdr->fence_mode =
1081 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1082 TXF_LOCK_FENCE));
1083
1084 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1085 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
1086 TXF_WR_PTR);
1087
1088 /* Dummy-read to advance the read pointer to the head */
1089 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1090
1091 /* Read FIFO */
1092 fifo_len /= sizeof(u32); /* Size in DWORDS */
1093 for (j = 0; j < fifo_len; j++)
1094 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1095 TXF_READ_MODIFY_DATA);
1096 *dump_data = iwl_fw_error_next_data(*dump_data);
1097 }
1098
1099 iwl_trans_release_nic_access(mvm->trans, &flags);
1100}
1101
b6eaa45a
EG		 1102void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1103{
1104 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1105 !mvm->fw_dump_desc)
1106 return;
1107
1108 kfree(mvm->fw_dump_desc);
1109 mvm->fw_dump_desc = NULL;
1110}
1111
e539761d
LK		 1112#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1113#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1114
4bfa47f3 1115void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1116{
1117 struct iwl_fw_error_dump_file *dump_file;
1118 struct iwl_fw_error_dump_data *dump_data;
1119 struct iwl_fw_error_dump_info *dump_info;
a549b296 1120 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1121 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1122 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1123 u32 sram_len, sram_ofs;
04fd2c28 1124 u32 file_len, fifo_data_len = 0;
addfaada 1125 u32 smem_len = mvm->cfg->smem_len;
86138324 1126 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1127
1128 lockdep_assert_held(&mvm->mutex);
1129
aadede6e 1130 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1131 if (!fw_error_dump)
1132 return;
1133
f53bf4c7
LK		 1134 /* SRAM - include stack CCM if driver knows the values for it */
1135 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1136 const struct fw_img *img;
1137
1138 img = &mvm->fw->img[mvm->cur_ucode];
1139 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1140 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1141 } else {
1142 sram_ofs = mvm->cfg->dccm_offset;
1143 sram_len = mvm->cfg->dccm_len;
1144 }
655e6d6d 1145
04fd2c28
LK		 1146 /* reading RXF/TXF sizes */
1147 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1148 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1149 int i;
1150
1151 fifo_data_len = 0;
1152
1153 /* Count RXF size */
1154 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1155 if (!mem_cfg->rxfifo_size[i])
1156 continue;
1157
1158 /* Add header info */
1159 fifo_data_len += mem_cfg->rxfifo_size[i] +
1160 sizeof(*dump_data) +
1161 sizeof(struct iwl_fw_error_dump_fifo);
1162 }
1163
1164 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1165 if (!mem_cfg->txfifo_size[i])
1166 continue;
655e6d6d 1167
04fd2c28
LK		 1168 /* Add header info */
1169 fifo_data_len += mem_cfg->txfifo_size[i] +
1170 sizeof(*dump_data) +
1171 sizeof(struct iwl_fw_error_dump_fifo);
1172 }
1173 }
655e6d6d
EG		 1174
1175 file_len = sizeof(*dump_file) +
04fd2c28 1176 sizeof(*dump_data) * 2 +
a549b296 1177 sram_len + sizeof(*dump_mem) +
04fd2c28 1178 fifo_data_len +
655e6d6d
EG		 1179 sizeof(*dump_info);
1180
e539761d
LK		 1181 /*
1182 * In 8000 HW family B-step include the ICCM (which resides separately)
1183 */
1184 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1185 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1186 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1187 IWL8260_ICCM_LEN;
1188
b6eaa45a
EG		 1189 if (mvm->fw_dump_desc)
1190 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1191 mvm->fw_dump_desc->len;
1192
addfaada
LK		 1193 /* Make room for the SMEM, if it exists */
1194 if (smem_len)
a549b296 1195 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1196
86138324
IY		 1197 /* Make room for the secondary SRAM, if it exists */
1198 if (sram2_len)
1199 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1200
5bfe6f53 1201 dump_file = vzalloc(file_len);
48eb7b34
EG		 1202 if (!dump_file) {
1203 kfree(fw_error_dump);
b6eaa45a 1204 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1205 return;
48eb7b34 1206 }
655e6d6d 1207
48eb7b34 1208 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1209
1210 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1211 dump_data = (void *)dump_file->data;
1212
1213 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1214 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1215 dump_info = (void *) dump_data->data;
1216 dump_info->device_family =
1217 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1218 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1219 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1220 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1221 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1222 sizeof(dump_info->fw_human_readable));
1223 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1224 sizeof(dump_info->dev_human_readable));
1225 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1226 sizeof(dump_info->bus_human_readable));
1227
1228 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1229 /* We only dump the FIFOs if the FW is in error state */
1230 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1231 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1232
b6eaa45a
EG		 1233 if (mvm->fw_dump_desc) {
1234 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1235 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1236 mvm->fw_dump_desc->len);
1237 dump_trig = (void *)dump_data->data;
1238 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1239 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1240
1241 /* now we can free this copy */
1242 iwl_mvm_free_fw_dump_desc(mvm);
1243 dump_data = iwl_fw_error_next_data(dump_data);
1244 }
1245
a549b296
EG		 1246 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1247 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1248 dump_mem = (void *)dump_data->data;
1249 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1250 dump_mem->offset = cpu_to_le32(sram_ofs);
1251 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1252 sram_len);
1253
addfaada
LK		 1254 if (smem_len) {
1255 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1256 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1257 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1258 dump_mem = (void *)dump_data->data;
1259 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1260 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1261 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1262 dump_mem->data, smem_len);
addfaada
LK		 1263 }
1264
86138324
IY		 1265 if (sram2_len) {
1266 dump_data = iwl_fw_error_next_data(dump_data);
1267 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1268 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1269 dump_mem = (void *)dump_data->data;
1270 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1271 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1272 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1273 dump_mem->data, sram2_len);
1274 }
1275
e539761d
LK		 1276 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1277 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1278 dump_data = iwl_fw_error_next_data(dump_data);
1279 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1280 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1281 sizeof(*dump_mem));
1282 dump_mem = (void *)dump_data->data;
1283 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1284 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1285 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1286 dump_mem->data, IWL8260_ICCM_LEN);
1287 }
1288
48eb7b34
EG		 1289 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1290 fw_error_dump->op_mode_len = file_len;
1291 if (fw_error_dump->trans_ptr)
1292 file_len += fw_error_dump->trans_ptr->len;
1293 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1294
aadede6e
JB		 1295 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1296 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1297
1298 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1299}
655e6d6d 1300
b6eaa45a
EG		 1301struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1302 .trig_desc = {
1303 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1304 },
1305};
1306
8ca151b5
JB		 1307static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1308{
58629d9d
JB		 1309 /* clear the D3 reconfig, we only need it to avoid dumping a
1310 * firmware coredump on reconfiguration, we shouldn't do that
1311 * on D3->D0 transition
1312 */
b6eaa45a
EG		 1313 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1314 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1315 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1316 }
1bd3cbc1 1317
744cb695
EP		 1318 /* cleanup all stale references (scan, roc), but keep the
1319 * ucode_down ref until reconfig is complete
1320 */
1321 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1322
8ca151b5 1323 iwl_trans_stop_device(mvm->trans);
8ca151b5 1324
9af91f46 1325 mvm->scan_status = 0;
b1873300 1326 mvm->ps_disabled = false;
31b8b343 1327 mvm->calibrating = false;
8ca151b5
JB		 1328
1329 /* just in case one was running */
1330 ieee80211_remain_on_channel_expired(mvm->hw);
1331
737719fe
AN		 1332 /*
1333 * cleanup all interfaces, even inactive ones, as some might have
1334 * gone down during the HW restart
1335 */
1336 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1337
fe0f2de3 1338 mvm->p2p_device_vif = NULL;
37577fe2 1339 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1340
1341 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1342 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1343 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1344 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1345 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1346 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1347 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1348 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1349 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1350
1351 ieee80211_wake_queues(mvm->hw);
1352
228670b2
EP		 1353 /* clear any stale d0i3 state */
1354 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1355
8ca151b5 1356 mvm->vif_count = 0;
113a0447 1357 mvm->rx_ba_sessions = 0;
d2709ad7 1358 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1359
1360 /* keep statistics ticking */
1361 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1362}
1363
a0a09243 1364int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1365{
8ca151b5
JB		 1366 int ret;
1367
a0a09243 1368 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1369
1370 /* Clean up some internal and mac80211 state on restart */
1371 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1372 iwl_mvm_restart_cleanup(mvm);
1373
1374 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1375
1376 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1377 /* Something went wrong - we need to finish some cleanup
1378 * that normally iwl_mvm_mac_restart_complete() below
1379 * would do.
1380 */
1381 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1382 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1383 }
1384
a0a09243
LC		 1385 return ret;
1386}
1387
1388static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1389{
1390 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1391 int ret;
1392
37948fcf
EP		 1393 /* Some hw restart cleanups must not hold the mutex */
1394 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1395 /*
1396 * Make sure we are out of d0i3. This is needed
1397 * to make sure the reference accounting is correct
1398 * (and there is no stale d0i3_exit_work).
1399 */
1400 wait_event_timeout(mvm->d0i3_exit_waitq,
1401 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1402 &mvm->status),
1403 HZ);
1404 }
1405
a0a09243
LC		 1406 mutex_lock(&mvm->mutex);
1407 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1408 mutex_unlock(&mvm->mutex);
1409
1410 return ret;
1411}
1412
cf2c92d8 1413static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1414{
8ca151b5
JB		 1415 int ret;
1416
1417 mutex_lock(&mvm->mutex);
1418
1419 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1420 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1421 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1422 if (ret)
1423 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1424 ret);
1425
7498cf4c
EP		 1426 /* allow transport/FW low power modes */
1427 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1428
cbd2ae2d
AN		 1429 /*
1430 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1431 * of packets the FW sent out, so we must reconnect.
1432 */
1433 iwl_mvm_teardown_tdls_peers(mvm);
1434
8ca151b5
JB		 1435 mutex_unlock(&mvm->mutex);
1436}
1437
088070a2
EP		 1438static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1439{
088070a2
EP		 1440 if (!iwl_mvm_is_d0i3_supported(mvm))
1441 return;
1442
6735943f
EP		 1443 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1444 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1445 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1446 &mvm->status),
1447 HZ))
1448 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1449}
1450
cf2c92d8
EP		 1451static void
1452iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1453 enum ieee80211_reconfig_type reconfig_type)
1454{
1455 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1456
1457 switch (reconfig_type) {
1458 case IEEE80211_RECONFIG_TYPE_RESTART:
1459 iwl_mvm_restart_complete(mvm);
1460 break;
1461 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1462 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1463 break;
1464 }
1465}
1466
a0a09243 1467void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1468{
a0a09243 1469 lockdep_assert_held(&mvm->mutex);
7498cf4c 1470
91a8bcde
JB		 1471 /* firmware counters are obviously reset now, but we shouldn't
1472 * partially track so also clear the fw_reset_accu counters.
1473 */
1474 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1475
0a79a0c0
EP		 1476 /*
1477 * Disallow low power states when the FW is down by taking
1478 * the UCODE_DOWN ref. in case of ongoing hw restart the
1479 * ref is already taken, so don't take it again.
1480 */
1481 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1482 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1483
8ca151b5
JB		 1484 /* async_handlers_wk is now blocked */
1485
1486 /*
1487 * The work item could be running or queued if the
1488 * ROC time event stops just as we get here.
1489 */
c779273b 1490 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1491
1492 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1493
1494 iwl_mvm_async_handlers_purge(mvm);
1495 /* async_handlers_list is empty and will stay empty: HW is stopped */
1496
1497 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1498 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1499
0a79a0c0
EP		 1500 /*
1501 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1502 * won't be called in this case).
8b2b9fbf
AN		 1503 * But make sure to cleanup interfaces that have gone down before/during
1504 * HW restart was requested.
0a79a0c0 1505 */
8b2b9fbf
AN		 1506 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1507 ieee80211_iterate_interfaces(mvm->hw, 0,
1508 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1509
963221be
AB		 1510 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1511 * make sure there's nothing left there and warn if any is found.
1512 */
859d914c 1513 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1514 int i;
1515
507e4cda 1516 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1517 if (WARN_ONCE(mvm->scan_uid_status[i],
1518 "UMAC scan UID %d status was not cleaned\n",
1519 i))
1520 mvm->scan_uid_status[i] = 0;
963221be
AB		 1521 }
1522 }
1523
bc44886d 1524 mvm->ucode_loaded = false;
a0a09243 1525}
bc44886d 1526
a0a09243
LC		 1527static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1528{
1529 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1530
1531 flush_work(&mvm->d0i3_exit_work);
1532 flush_work(&mvm->async_handlers_wk);
d2709ad7 1533 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1534 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1535
1536 mutex_lock(&mvm->mutex);
1537 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1538 mutex_unlock(&mvm->mutex);
1539
1540 /*
1541 * The worker might have been waiting for the mutex, let it run and
1542 * discover that its list is now empty.
1543 */
1544 cancel_work_sync(&mvm->async_handlers_wk);
1545}
1546
fe0f2de3
IP		 1547static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1548{
1549 u16 i;
1550
1551 lockdep_assert_held(&mvm->mutex);
1552
1553 for (i = 0; i < NUM_PHY_CTX; i++)
1554 if (!mvm->phy_ctxts[i].ref)
1555 return &mvm->phy_ctxts[i];
1556
1557 IWL_ERR(mvm, "No available PHY context\n");
1558 return NULL;
1559}
1560
d44c3fe6
AA		 1561static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1562 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1563{
1564 /* FW is in charge of regulatory enforcement */
1565 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1566 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1567 .pwr_restriction = cpu_to_le16(tx_power),
1568 };
1569
a1022927 1570 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1571 sizeof(reduce_txpwr_cmd),
1572 &reduce_txpwr_cmd);
1573}
1574
d44c3fe6
AA		 1575static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1576 s16 tx_power)
1577{
1578 struct iwl_dev_tx_power_cmd cmd = {
1579 .set_mode = 0,
1580 .mac_context_id =
1581 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1582 .pwr_restriction = cpu_to_le16(8 * tx_power),
1583 };
1584
859d914c 1585 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_DEV))
d44c3fe6
AA		 1586 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1587
1588 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1589 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1590
1591 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1592 sizeof(cmd), &cmd);
1593}
1594
8ca151b5
JB		 1595static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1596 struct ieee80211_vif *vif)
1597{
1598 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1599 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1600 int ret;
1601
aa5e1832
EG		 1602 mvmvif->mvm = mvm;
1603
d40fc489
GG		 1604 /*
1605 * make sure D0i3 exit is completed, otherwise a target access
1606 * during tx queue configuration could be done when still in
1607 * D0i3 state.
1608 */
1609 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1610 if (ret)
1611 return ret;
1612
8ca151b5
JB		 1613 /*
1614 * Not much to do here. The stack will not allow interface
1615 * types or combinations that we didn't advertise, so we
1616 * don't really have to check the types.
1617 */
1618
1619 mutex_lock(&mvm->mutex);
1620
33cef925
JB		 1621 /* make sure that beacon statistics don't go backwards with FW reset */
1622 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1623 mvmvif->beacon_stats.accu_num_beacons +=
1624 mvmvif->beacon_stats.num_beacons;
1625
e89044d7 1626 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1627 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1628 if (ret)
1629 goto out_unlock;
1630
1c2abf72 1631 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1632 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1633 mvm->vif_count++;
ea183d02 1634
8ca151b5
JB		 1635 /*
1636 * The AP binding flow can be done only after the beacon
1637 * template is configured (which happens only in the mac80211
1638 * start_ap() flow), and adding the broadcast station can happen
1639 * only after the binding.
1640 * In addition, since modifying the MAC before adding a bcast
1641 * station is not allowed by the FW, delay the adding of MAC context to
1642 * the point where we can also add the bcast station.
1643 * In short: there's not much we can do at this point, other than
1644 * allocating resources :)
1645 */
5023d966
JB		 1646 if (vif->type == NL80211_IFTYPE_AP ||
1647 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1648 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1649 if (ret) {
1650 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1651 goto out_release;
1652 }
1653
77740cb4 1654 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1655 goto out_unlock;
1656 }
1657
93190fb0
AA		 1658 mvmvif->features |= hw->netdev_features;
1659
8ca151b5
JB		 1660 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1661 if (ret)
1662 goto out_release;
1663
999609f1 1664 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1665 if (ret)
fd66fc1c 1666 goto out_remove_mac;
8ca151b5 1667
7df15b1e 1668 /* beacon filtering */
a1022927 1669 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1670 if (ret)
1671 goto out_remove_mac;
1672
7df15b1e 1673 if (!mvm->bf_allowed_vif &&
73e5f2c5 1674 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1675 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1676 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1677 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1678 }
1679
8ca151b5
JB		 1680 /*
1681 * P2P_DEVICE interface does not have a channel context assigned to it,
1682 * so a dedicated PHY context is allocated to it and the corresponding
1683 * MAC context is bound to it at this stage.
1684 */
1685 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1686
fe0f2de3
IP		 1687 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1688 if (!mvmvif->phy_ctxt) {
1689 ret = -ENOSPC;
bd3351ba 1690 goto out_free_bf;
fe0f2de3 1691 }
8ca151b5 1692
53a9d61e 1693 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1694 ret = iwl_mvm_binding_add_vif(mvm, vif);
1695 if (ret)
53a9d61e 1696 goto out_unref_phy;
8ca151b5 1697
013290aa 1698 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1699 if (ret)
1700 goto out_unbind;
1701
1702 /* Save a pointer to p2p device vif, so it can later be used to
1703 * update the p2p device MAC when a GO is started/stopped */
1704 mvm->p2p_device_vif = vif;
1705 }
1706
63494374 1707 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1708 goto out_unlock;
1709
1710 out_unbind:
1711 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1712 out_unref_phy:
fe0f2de3 1713 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1714 out_free_bf:
1715 if (mvm->bf_allowed_vif == mvmvif) {
1716 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1717 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1718 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1719 }
8ca151b5
JB		 1720 out_remove_mac:
1721 mvmvif->phy_ctxt = NULL;
1722 iwl_mvm_mac_ctxt_remove(mvm, vif);
1723 out_release:
5ee2b215
AB		 1724 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1725 mvm->vif_count--;
1c2abf72 1726
8ca151b5
JB		 1727 iwl_mvm_mac_ctxt_release(mvm, vif);
1728 out_unlock:
1729 mutex_unlock(&mvm->mutex);
1730
d40fc489
GG		 1731 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1732
8ca151b5
JB		 1733 return ret;
1734}
1735
38a12b5b
JB		 1736static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1737 struct ieee80211_vif *vif)
8ca151b5 1738{
d92b732e 1739 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1740
1741 if (tfd_msk) {
fe92e32a
EG		 1742 /*
1743 * mac80211 first removes all the stations of the vif and
1744 * then removes the vif. When it removes a station it also
1745 * flushes the AMPDU session. So by now, all the AMPDU sessions
1746 * of all the stations of this vif are closed, and the queues
1747 * of these AMPDU sessions are properly closed.
1748 * We still need to take care of the shared queues of the vif.
1749 * Flush them here.
1750 */
8ca151b5
JB		 1751 mutex_lock(&mvm->mutex);
1752 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1753 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1754
1755 /*
1756 * There are transports that buffer a few frames in the host.
1757 * For these, the flush above isn't enough since while we were
1758 * flushing, the transport might have sent more frames to the
1759 * device. To solve this, wait here until the transport is
1760 * empty. Technically, this could have replaced the flush
1761 * above, but flush is much faster than draining. So flush
1762 * first, and drain to make sure we have no frames in the
1763 * transport anymore.
1764 * If a station still had frames on the shared queues, it is
1765 * already marked as draining, so to complete the draining, we
1766 * just need to wait until the transport is empty.
1767 */
1768 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1769 }
1770
1771 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1772 /*
1773 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1774 * We assume here that all the packets sent to the OFFCHANNEL
1775 * queue are sent in ROC session.
1776 */
1777 flush_work(&mvm->roc_done_wk);
1778 } else {
1779 /*
1780 * By now, all the AC queues are empty. The AGG queues are
1781 * empty too. We already got all the Tx responses for all the
1782 * packets in the queues. The drain work can have been
0742a75a 1783 * triggered. Flush it.
8ca151b5
JB		 1784 */
1785 flush_work(&mvm->sta_drained_wk);
1786 }
38a12b5b
JB		 1787}
1788
1789static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1790 struct ieee80211_vif *vif)
1791{
1792 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1793 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1794
1795 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1796
1797 mutex_lock(&mvm->mutex);
1798
7df15b1e
HG		 1799 if (mvm->bf_allowed_vif == mvmvif) {
1800 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1801 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1802 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1803 }
1804
63494374
JB		 1805 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1806
8ca151b5
JB		 1807 /*
1808 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1809 * interface is be handled as part of the stop_ap flow.
8ca151b5 1810 */
5023d966
JB		 1811 if (vif->type == NL80211_IFTYPE_AP ||
1812 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1813#ifdef CONFIG_NL80211_TESTMODE
1814 if (vif == mvm->noa_vif) {
1815 mvm->noa_vif = NULL;
1816 mvm->noa_duration = 0;
1817 }
1818#endif
013290aa 1819 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1820 goto out_release;
1821 }
1822
1823 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1824 mvm->p2p_device_vif = NULL;
013290aa 1825 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1826 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1827 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1828 mvmvif->phy_ctxt = NULL;
1829 }
1830
5ee2b215 1831 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1832 mvm->vif_count--;
1c2abf72 1833
999609f1 1834 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1835 iwl_mvm_mac_ctxt_remove(mvm, vif);
1836
1837out_release:
1838 iwl_mvm_mac_ctxt_release(mvm, vif);
1839 mutex_unlock(&mvm->mutex);
1840}
1841
1842static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1843{
8ca151b5
JB		 1844 return 0;
1845}
1846
e59647ea
EP		 1847struct iwl_mvm_mc_iter_data {
1848 struct iwl_mvm *mvm;
1849 int port_id;
1850};
1851
1852static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1853 struct ieee80211_vif *vif)
1854{
1855 struct iwl_mvm_mc_iter_data *data = _data;
1856 struct iwl_mvm *mvm = data->mvm;
1857 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1858 int ret, len;
1859
1860 /* if we don't have free ports, mcast frames will be dropped */
1861 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1862 return;
1863
1864 if (vif->type != NL80211_IFTYPE_STATION ||
1865 !vif->bss_conf.assoc)
1866 return;
1867
1868 cmd->port_id = data->port_id++;
1869 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1870 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1871
1c4abec0 1872 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1873 if (ret)
1874 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1875}
1876
1877static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1878{
1879 struct iwl_mvm_mc_iter_data iter_data = {
1880 .mvm = mvm,
88f2fd73
MG		 1881 };
1882
e59647ea
EP		 1883 lockdep_assert_held(&mvm->mutex);
1884
1885 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1886 return;
1887
1c4abec0 1888 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1889 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1890 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1891}
1892
e59647ea
EP		 1893static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1894 struct netdev_hw_addr_list *mc_list)
8ca151b5 1895{
e59647ea
EP		 1896 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1897 struct iwl_mcast_filter_cmd *cmd;
1898 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1899 int addr_count;
1900 bool pass_all;
e59647ea
EP		 1901 int len;
1902
f3bd58f4
MS		 1903 addr_count = netdev_hw_addr_list_count(mc_list);
1904 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1905 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1906 if (pass_all)
e59647ea 1907 addr_count = 0;
e59647ea
EP		 1908
1909 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1910 cmd = kzalloc(len, GFP_ATOMIC);
1911 if (!cmd)
1912 return 0;
1913
1914 if (pass_all) {
1915 cmd->pass_all = 1;
1916 return (u64)(unsigned long)cmd;
1917 }
1918
1919 netdev_hw_addr_list_for_each(addr, mc_list) {
1920 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1921 cmd->count, addr->addr);
1922 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1923 addr->addr, ETH_ALEN);
1924 cmd->count++;
1925 }
1926
1927 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1928}
1929
1930static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1931 unsigned int changed_flags,
1932 unsigned int *total_flags,
1933 u64 multicast)
1934{
e59647ea
EP		 1935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1936 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1937
e59647ea 1938 mutex_lock(&mvm->mutex);
51b6b9e0 1939
e59647ea
EP		 1940 /* replace previous configuration */
1941 kfree(mvm->mcast_filter_cmd);
1942 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1943
e59647ea
EP		 1944 if (!cmd)
1945 goto out;
51b6b9e0 1946
e59647ea
EP		 1947 iwl_mvm_recalc_multicast(mvm);
1948out:
1949 mutex_unlock(&mvm->mutex);
1950 *total_flags = 0;
51b6b9e0
EG		 1951}
1952
c87163b9
EP		 1953#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1954struct iwl_bcast_iter_data {
1955 struct iwl_mvm *mvm;
1956 struct iwl_bcast_filter_cmd *cmd;
1957 u8 current_filter;
1958};
1959
1960static void
1961iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1962 const struct iwl_fw_bcast_filter *in_filter,
1963 struct iwl_fw_bcast_filter *out_filter)
1964{
1965 struct iwl_fw_bcast_filter_attr *attr;
1966 int i;
1967
1968 memcpy(out_filter, in_filter, sizeof(*out_filter));
1969
1970 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1971 attr = &out_filter->attrs[i];
1972
1973 if (!attr->mask)
1974 break;
1975
2ee8f021
EP		 1976 switch (attr->reserved1) {
1977 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1978 if (vif->bss_conf.arp_addr_cnt != 1) {
1979 attr->mask = 0;
1980 continue;
1981 }
1982
1983 attr->val = vif->bss_conf.arp_addr_list[0];
1984 break;
1985 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1986 attr->val = *(__be32 *)&vif->addr[2];
1987 break;
1988 default:
1989 break;
1990 }
1991 attr->reserved1 = 0;
c87163b9
EP		 1992 out_filter->num_attrs++;
1993 }
1994}
1995
1996static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1997 struct ieee80211_vif *vif)
1998{
1999 struct iwl_bcast_iter_data *data = _data;
2000 struct iwl_mvm *mvm = data->mvm;
2001 struct iwl_bcast_filter_cmd *cmd = data->cmd;
2002 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2003 struct iwl_fw_bcast_mac *bcast_mac;
2004 int i;
2005
2006 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
2007 return;
2008
2009 bcast_mac = &cmd->macs[mvmvif->id];
2010
e48393e8
IP		 2011 /*
2012 * enable filtering only for associated stations, but not for P2P
2013 * Clients
2014 */
2015 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2016 !vif->bss_conf.assoc)
c87163b9
EP		 2017 return;
2018
2019 bcast_mac->default_discard = 1;
2020
2021 /* copy all configured filters */
2022 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2023 /*
2024 * Make sure we don't exceed our filters limit.
2025 * if there is still a valid filter to be configured,
2026 * be on the safe side and just allow bcast for this mac.
2027 */
2028 if (WARN_ON_ONCE(data->current_filter >=
2029 ARRAY_SIZE(cmd->filters))) {
2030 bcast_mac->default_discard = 0;
2031 bcast_mac->attached_filters = 0;
2032 break;
2033 }
2034
2035 iwl_mvm_set_bcast_filter(vif,
2036 &mvm->bcast_filters[i],
2037 &cmd->filters[data->current_filter]);
2038
2039 /* skip current filter if it contains no attributes */
2040 if (!cmd->filters[data->current_filter].num_attrs)
2041 continue;
2042
2043 /* attach the filter to current mac */
2044 bcast_mac->attached_filters |=
2045 cpu_to_le16(BIT(data->current_filter));
2046
2047 data->current_filter++;
2048 }
2049}
2050
de06a59e
EP		 2051bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2052 struct iwl_bcast_filter_cmd *cmd)
c87163b9 2053{
c87163b9
EP		 2054 struct iwl_bcast_iter_data iter_data = {
2055 .mvm = mvm,
de06a59e 2056 .cmd = cmd,
c87163b9
EP		 2057 };
2058
3b8983b1
MS		 2059 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2060 return false;
2061
de06a59e
EP		 2062 memset(cmd, 0, sizeof(*cmd));
2063 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2064 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2065
2066#ifdef CONFIG_IWLWIFI_DEBUGFS
2067 /* use debugfs filters/macs if override is configured */
2068 if (mvm->dbgfs_bcast_filtering.override) {
2069 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2070 sizeof(cmd->filters));
2071 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2072 sizeof(cmd->macs));
2073 return true;
2074 }
2075#endif
c87163b9
EP		 2076
2077 /* if no filters are configured, do nothing */
2078 if (!mvm->bcast_filters)
de06a59e 2079 return false;
c87163b9
EP		 2080
2081 /* configure and attach these filters for each associated sta vif */
2082 ieee80211_iterate_active_interfaces(
2083 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2084 iwl_mvm_bcast_filter_iterator, &iter_data);
2085
de06a59e
EP		 2086 return true;
2087}
2088static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2089 struct ieee80211_vif *vif)
2090{
2091 struct iwl_bcast_filter_cmd cmd;
2092
2093 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2094 return 0;
2095
2096 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2097 return 0;
2098
a1022927 2099 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2100 sizeof(cmd), &cmd);
2101}
2102#else
2103static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2104 struct ieee80211_vif *vif)
2105{
2106 return 0;
2107}
2108#endif
2109
8ca151b5
JB		 2110static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2111 struct ieee80211_vif *vif,
2112 struct ieee80211_bss_conf *bss_conf,
2113 u32 changes)
2114{
2115 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2116 int ret;
2117
6e97b0d2
IP		 2118 /*
2119 * Re-calculate the tsf id, as the master-slave relations depend on the
2120 * beacon interval, which was not known when the station interface was
2121 * added.
2122 */
2123 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2124 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2125
3dfd3a97
JB		 2126 /*
2127 * If we're not associated yet, take the (new) BSSID before associating
2128 * so the firmware knows. If we're already associated, then use the old
2129 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2130 * branch for disassociation below.
2131 */
2132 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2133 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2134
2135 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2136 if (ret)
2137 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2138
3dfd3a97
JB		 2139 /* after sending it once, adopt mac80211 data */
2140 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2141 mvmvif->associated = bss_conf->assoc;
2142
8ca151b5
JB		 2143 if (changes & BSS_CHANGED_ASSOC) {
2144 if (bss_conf->assoc) {
33cef925
JB		 2145 /* clear statistics to get clean beacon counter */
2146 iwl_mvm_request_statistics(mvm, true);
2147 memset(&mvmvif->beacon_stats, 0,
2148 sizeof(mvmvif->beacon_stats));
2149
8ca151b5 2150 /* add quota for this interface */
7754ae79 2151 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2152 if (ret) {
2153 IWL_ERR(mvm, "failed to update quotas\n");
2154 return;
2155 }
016d27e1
JB		 2156
2157 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2158 &mvm->status)) {
2159 /*
2160 * If we're restarting then the firmware will
2161 * obviously have lost synchronisation with
2162 * the AP. It will attempt to synchronise by
2163 * itself, but we can make it more reliable by
2164 * scheduling a session protection time event.
2165 *
2166 * The firmware needs to receive a beacon to
2167 * catch up with synchronisation, use 110% of
2168 * the beacon interval.
2169 *
2170 * Set a large maximum delay to allow for more
2171 * than a single interface.
2172 */
2173 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2174 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2175 5 * dur, false);
016d27e1 2176 }
1f3b0ff8
LE		 2177
2178 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2179 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2180 if (vif->p2p) {
29a90a49 2181 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2182 iwl_mvm_update_smps(mvm, vif,
2183 IWL_MVM_SMPS_REQ_PROT,
2184 IEEE80211_SMPS_DYNAMIC);
2185 }
8ca151b5 2186 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2187 /*
2188 * If update fails - SF might be running in associated
2189 * mode while disassociated - which is forbidden.
2190 */
2191 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2192 "Failed to update SF upon disassociation\n");
2193
8ca151b5
JB		 2194 /* remove AP station now that the MAC is unassoc */
2195 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2196 if (ret)
2197 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2198
2199 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2200 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2201 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2202 /* remove quota for this interface */
7754ae79 2203 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2204 if (ret)
2205 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2206
2207 if (vif->p2p)
2208 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2209
2210 /* this will take the cleared BSSID from bss_conf */
2211 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2212 if (ret)
2213 IWL_ERR(mvm,
2214 "failed to update MAC %pM (clear after unassoc)\n",
2215 vif->addr);
8ca151b5 2216 }
a20fd398 2217
e59647ea 2218 iwl_mvm_recalc_multicast(mvm);
c87163b9 2219 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2220
a20fd398
AO		 2221 /* reset rssi values */
2222 mvmvif->bf_data.ave_beacon_signal = 0;
2223
8e484f0b 2224 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2225 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2226 IEEE80211_SMPS_AUTOMATIC);
989c6505 2227 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2228 /*
2229 * We received a beacon _after_ association so
2230 * remove the session protection.
2231 */
2232 iwl_mvm_remove_time_event(mvm, mvmvif,
2233 &mvmvif->time_event_data);
8ca151b5 2234 }
cc87d322
EH		 2235
2236 if (changes & BSS_CHANGED_BEACON_INFO) {
2237 iwl_mvm_sf_update(mvm, vif, false);
2238 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2239 }
2240
1bc10d3b
JB		 2241 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2242 ret = iwl_mvm_power_update_mac(mvm);
2243 if (ret)
2244 IWL_ERR(mvm, "failed to update power mode\n");
2245 }
2246
88f2fd73
MG		 2247 if (changes & BSS_CHANGED_TXPOWER) {
2248 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2249 bss_conf->txpower);
2250 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2251 }
a20fd398
AO		 2252
2253 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2254 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2255 /* reset cqm events tracking */
2256 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2257 if (mvmvif->bf_data.bf_enabled) {
2258 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2259 if (ret)
2260 IWL_ERR(mvm,
2261 "failed to update CQM thresholds\n");
2262 }
a20fd398 2263 }
2ee8f021
EP		 2264
2265 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2266 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2267 iwl_mvm_configure_bcast_filter(mvm, vif);
2268 }
8ca151b5
JB		 2269}
2270
5023d966
JB		 2271static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2272 struct ieee80211_vif *vif)
8ca151b5
JB		 2273{
2274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2275 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2276 int ret;
2277
576eeee9
EP		 2278 /*
2279 * iwl_mvm_mac_ctxt_add() might read directly from the device
2280 * (the system time), so make sure it is available.
2281 */
2282 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2283 if (ret)
2284 return ret;
2285
8ca151b5
JB		 2286 mutex_lock(&mvm->mutex);
2287
2288 /* Send the beacon template */
2289 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2290 if (ret)
2291 goto out_unlock;
2292
6e97b0d2
IP		 2293 /*
2294 * Re-calculate the tsf id, as the master-slave relations depend on the
2295 * beacon interval, which was not known when the AP interface was added.
2296 */
2297 if (vif->type == NL80211_IFTYPE_AP)
2298 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2299
8ca151b5
JB		 2300 /* Add the mac context */
2301 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2302 if (ret)
2303 goto out_unlock;
2304
2305 /* Perform the binding */
2306 ret = iwl_mvm_binding_add_vif(mvm, vif);
2307 if (ret)
2308 goto out_remove;
2309
8ca151b5
JB		 2310 /* Send the bcast station. At this stage the TBTT and DTIM time events
2311 * are added and applied to the scheduler */
013290aa 2312 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2313 if (ret)
2314 goto out_unbind;
2315
5691e218
IP		 2316 /* must be set before quota calculations */
2317 mvmvif->ap_ibss_active = true;
2318
a11e144e 2319 /* power updated needs to be done before quotas */
999609f1 2320 iwl_mvm_power_update_mac(mvm);
a11e144e 2321
7754ae79 2322 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2323 if (ret)
a11e144e 2324 goto out_quota_failed;
8ca151b5 2325
5023d966 2326 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2327 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2328 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2329
29a90a49
EP		 2330 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2331
8e484f0b 2332 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2333
f697267f
AN		 2334 /* we don't support TDLS during DCM */
2335 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2336 iwl_mvm_teardown_tdls_peers(mvm);
2337
939e4904 2338 goto out_unlock;
8ca151b5 2339
a11e144e 2340out_quota_failed:
999609f1 2341 iwl_mvm_power_update_mac(mvm);
5691e218 2342 mvmvif->ap_ibss_active = false;
013290aa 2343 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2344out_unbind:
2345 iwl_mvm_binding_remove_vif(mvm, vif);
2346out_remove:
2347 iwl_mvm_mac_ctxt_remove(mvm, vif);
2348out_unlock:
2349 mutex_unlock(&mvm->mutex);
576eeee9 2350 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2351 return ret;
2352}
2353
5023d966
JB		 2354static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2355 struct ieee80211_vif *vif)
8ca151b5
JB		 2356{
2357 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2358 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2359
38a12b5b
JB		 2360 iwl_mvm_prepare_mac_removal(mvm, vif);
2361
8ca151b5
JB		 2362 mutex_lock(&mvm->mutex);
2363
664322fa 2364 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2365 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2366 iwl_mvm_remove_time_event(mvm, mvmvif,
2367 &mvmvif->time_event_data);
664322fa 2368 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2369 }
664322fa 2370
003e5236
AO		 2371 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2372 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2373 mvm->csa_tx_block_bcn_timeout = 0;
2374 }
2375
5023d966 2376 mvmvif->ap_ibss_active = false;
1c87bbad 2377 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2378
8e484f0b 2379 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2380
29a90a49
EP		 2381 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2382
5023d966 2383 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2384 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2385 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2386
7754ae79 2387 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2388 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2389 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2390
999609f1 2391 iwl_mvm_power_update_mac(mvm);
a11e144e 2392
8ca151b5
JB		 2393 iwl_mvm_mac_ctxt_remove(mvm, vif);
2394
2395 mutex_unlock(&mvm->mutex);
2396}
2397
5023d966
JB		 2398static void
2399iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2400 struct ieee80211_vif *vif,
2401 struct ieee80211_bss_conf *bss_conf,
2402 u32 changes)
8ca151b5 2403{
be2056fc 2404 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2405
be2056fc
IP		 2406 /* Changes will be applied when the AP/IBSS is started */
2407 if (!mvmvif->ap_ibss_active)
2408 return;
2409
863230da 2410 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2411 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2412 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2413 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2414
8ca151b5 2415 /* Need to send a new beacon template to the FW */
863230da
JB		 2416 if (changes & BSS_CHANGED_BEACON &&
2417 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2418 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2419
2420 if (changes & BSS_CHANGED_TXPOWER) {
2421 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2422 bss_conf->txpower);
2423 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2424 }
2425
8ca151b5
JB		 2426}
2427
2428static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2429 struct ieee80211_vif *vif,
2430 struct ieee80211_bss_conf *bss_conf,
2431 u32 changes)
2432{
2433 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2434
576eeee9
EP		 2435 /*
2436 * iwl_mvm_bss_info_changed_station() might call
2437 * iwl_mvm_protect_session(), which reads directly from
2438 * the device (the system time), so make sure it is available.
2439 */
2440 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2441 return;
2442
8ca151b5
JB		 2443 mutex_lock(&mvm->mutex);
2444
723f02ed 2445 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2446 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2447
8ca151b5
JB		 2448 switch (vif->type) {
2449 case NL80211_IFTYPE_STATION:
2450 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2451 break;
2452 case NL80211_IFTYPE_AP:
5023d966
JB		 2453 case NL80211_IFTYPE_ADHOC:
2454 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2455 break;
2456 default:
2457 /* shouldn't happen */
2458 WARN_ON_ONCE(1);
2459 }
2460
2461 mutex_unlock(&mvm->mutex);
576eeee9 2462 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2463}
2464
2465static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2466 struct ieee80211_vif *vif,
c56ef672 2467 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2468{
2469 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2470 int ret;
2471
6749dd80
LC		 2472 if (hw_req->req.n_channels == 0 ||
2473 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2474 return -EINVAL;
2475
2476 mutex_lock(&mvm->mutex);
6749dd80 2477 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2478 mutex_unlock(&mvm->mutex);
6749dd80 2479
8ca151b5
JB		 2480 return ret;
2481}
2482
2483static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2484 struct ieee80211_vif *vif)
2485{
2486 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2487
2488 mutex_lock(&mvm->mutex);
2489
e7d3abab
LC		 2490 /* Due to a race condition, it's possible that mac80211 asks
2491 * us to stop a hw_scan when it's already stopped. This can
2492 * happen, for instance, if we stopped the scan ourselves,
2493 * called ieee80211_scan_completed() and the userspace called
2494 * cancel scan scan before ieee80211_scan_work() could run.
2495 * To handle that, simply return if the scan is not running.
2496 */
262888fc 2497 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2498 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2499
2500 mutex_unlock(&mvm->mutex);
2501}
2502
2503static void
2504iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2505 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2506 int num_frames,
2507 enum ieee80211_frame_release_type reason,
2508 bool more_data)
2509{
2510 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2511
3e56eadf 2512 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2513
3e56eadf
JB		 2514 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2515 tids, more_data, false);
2516}
2517
2518static void
2519iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2520 struct ieee80211_sta *sta, u16 tids,
2521 int num_frames,
2522 enum ieee80211_frame_release_type reason,
2523 bool more_data)
2524{
2525 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2526
2527 /* Called when we need to transmit (a) frame(s) from agg queue */
2528
2529 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2530 tids, more_data, true);
8ca151b5
JB		 2531}
2532
2533static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2534 struct ieee80211_vif *vif,
2535 enum sta_notify_cmd cmd,
2536 struct ieee80211_sta *sta)
2537{
2538 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2539 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2540 unsigned long txqs = 0, tids = 0;
3e56eadf 2541 int tid;
8ca151b5 2542
c22b0ff5
EG		 2543 spin_lock_bh(&mvmsta->lock);
2544 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2545 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2546
2547 if (tid_data->state != IWL_AGG_ON &&
2548 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2549 continue;
2550
2551 __set_bit(tid_data->txq_id, &txqs);
2552
2553 if (iwl_mvm_tid_queued(tid_data) == 0)
2554 continue;
2555
2556 __set_bit(tid, &tids);
2557 }
2558
8ca151b5
JB		 2559 switch (cmd) {
2560 case STA_NOTIFY_SLEEP:
e3d4bc8c 2561 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2562 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2563
c22b0ff5 2564 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2565 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2566
2567 if (txqs)
2568 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2569 /*
2570 * The fw updates the STA to be asleep. Tx packets on the Tx
2571 * queues to this station will not be transmitted. The fw will
2572 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2573 */
2574 break;
2575 case STA_NOTIFY_AWAKE:
881acd89 2576 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2577 break;
c22b0ff5
EG		 2578
2579 if (txqs)
2580 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2581 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2582 break;
2583 default:
2584 break;
2585 }
c22b0ff5 2586 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2587}
2588
1ddbbb0c
JB		 2589static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2590 struct ieee80211_vif *vif,
2591 struct ieee80211_sta *sta)
2592{
2593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2594 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2595
2596 /*
2597 * This is called before mac80211 does RCU synchronisation,
2598 * so here we already invalidate our internal RCU-protected
2599 * station pointer. The rest of the code will thus no longer
2600 * be able to find the station this way, and we don't rely
2601 * on further RCU synchronisation after the sta_state()
2602 * callback deleted the station.
2603 */
2604 mutex_lock(&mvm->mutex);
2605 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2606 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2607 ERR_PTR(-ENOENT));
2608 mutex_unlock(&mvm->mutex);
2609}
2610
bd1ba664
JB		 2611static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2612 const u8 *bssid)
2613{
2614 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2615 return;
2616
2617 if (iwlwifi_mod_params.uapsd_disable) {
2618 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2619 return;
2620 }
2621
2622 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2623}
2624
8ca151b5
JB		 2625static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2626 struct ieee80211_vif *vif,
2627 struct ieee80211_sta *sta,
2628 enum ieee80211_sta_state old_state,
2629 enum ieee80211_sta_state new_state)
2630{
2631 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2632 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2633 int ret;
2634
2635 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2636 sta->addr, old_state, new_state);
2637
2638 /* this would be a mac80211 bug ... but don't crash */
2639 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2640 return -EINVAL;
2641
2642 /* if a STA is being removed, reuse its ID */
2643 flush_work(&mvm->sta_drained_wk);
2644
2645 mutex_lock(&mvm->mutex);
2646 if (old_state == IEEE80211_STA_NOTEXIST &&
2647 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2648 /*
2649 * Firmware bug - it'll crash if the beacon interval is less
2650 * than 16. We can't avoid connecting at all, so refuse the
2651 * station state change, this will cause mac80211 to abandon
2652 * attempts to connect to this AP, and eventually wpa_s will
2653 * blacklist the AP...
2654 */
2655 if (vif->type == NL80211_IFTYPE_STATION &&
2656 vif->bss_conf.beacon_int < 16) {
2657 IWL_ERR(mvm,
2658 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2659 sta->addr, vif->bss_conf.beacon_int);
2660 ret = -EINVAL;
2661 goto out_unlock;
2662 }
cf7b491d
AN		 2663
2664 if (sta->tdls &&
2665 (vif->p2p ||
fa3d07e4
AN		 2666 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2667 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2668 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2669 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2670 ret = -EBUSY;
2671 goto out_unlock;
2672 }
2673
8ca151b5 2674 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2675 if (sta->tdls && ret == 0)
2676 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2677 } else if (old_state == IEEE80211_STA_NONE &&
2678 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2679 /*
2680 * EBS may be disabled due to previous failures reported by FW.
2681 * Reset EBS status here assuming environment has been changed.
2682 */
2683 mvm->last_ebs_successful = true;
bd1ba664 2684 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2685 ret = 0;
2686 } else if (old_state == IEEE80211_STA_AUTH &&
2687 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2688 ret = iwl_mvm_update_sta(mvm, vif, sta);
2689 if (ret == 0)
2690 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2691 mvmvif->phy_ctxt->channel->band,
2692 true);
8ca151b5
JB		 2693 } else if (old_state == IEEE80211_STA_ASSOC &&
2694 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2695
2696 /* we don't support TDLS during DCM */
2697 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2698 iwl_mvm_teardown_tdls_peers(mvm);
2699
7df15b1e 2700 /* enable beacon filtering */
fa7b2e7f 2701 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2702 ret = 0;
2703 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2704 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2705 /* disable beacon filtering */
a1022927 2706 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2707 ret = 0;
2708 } else if (old_state == IEEE80211_STA_ASSOC &&
2709 new_state == IEEE80211_STA_AUTH) {
2710 ret = 0;
2711 } else if (old_state == IEEE80211_STA_AUTH &&
2712 new_state == IEEE80211_STA_NONE) {
2713 ret = 0;
2714 } else if (old_state == IEEE80211_STA_NONE &&
2715 new_state == IEEE80211_STA_NOTEXIST) {
2716 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2717 if (sta->tdls)
2718 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2719 } else {
2720 ret = -EIO;
2721 }
48bc1307 2722 out_unlock:
8ca151b5
JB		 2723 mutex_unlock(&mvm->mutex);
2724
9c126cd6
LK		 2725 if (sta->tdls && ret == 0) {
2726 if (old_state == IEEE80211_STA_NOTEXIST &&
2727 new_state == IEEE80211_STA_NONE)
2728 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2729 else if (old_state == IEEE80211_STA_NONE &&
2730 new_state == IEEE80211_STA_NOTEXIST)
2731 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2732 }
2733
8ca151b5
JB		 2734 return ret;
2735}
2736
2737static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2738{
2739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2740
2741 mvm->rts_threshold = value;
2742
2743 return 0;
2744}
2745
1f3b0ff8
LE		 2746static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2747 struct ieee80211_vif *vif,
2748 struct ieee80211_sta *sta, u32 changed)
2749{
2750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2751
2752 if (vif->type == NL80211_IFTYPE_STATION &&
2753 changed & IEEE80211_RC_NSS_CHANGED)
2754 iwl_mvm_sf_update(mvm, vif, false);
2755}
2756
8ca151b5
JB		 2757static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2758 struct ieee80211_vif *vif, u16 ac,
2759 const struct ieee80211_tx_queue_params *params)
2760{
2761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2762 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2763
2764 mvmvif->queue_params[ac] = *params;
2765
2766 /*
2767 * No need to update right away, we'll get BSS_CHANGED_QOS
2768 * The exception is P2P_DEVICE interface which needs immediate update.
2769 */
2770 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2771 int ret;
2772
2773 mutex_lock(&mvm->mutex);
3dfd3a97 2774 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2775 mutex_unlock(&mvm->mutex);
2776 return ret;
2777 }
2778 return 0;
2779}
2780
2781static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2782 struct ieee80211_vif *vif)
2783{
2784 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2785 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2786 200 + vif->bss_conf.beacon_int);
2787 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2788 100 + vif->bss_conf.beacon_int);
2789
2790 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2791 return;
2792
576eeee9
EP		 2793 /*
2794 * iwl_mvm_protect_session() reads directly from the device
2795 * (the system time), so make sure it is available.
2796 */
2797 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2798 return;
2799
8ca151b5
JB		 2800 mutex_lock(&mvm->mutex);
2801 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2802 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2803 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2804
2805 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2806}
2807
35a000b7
DS		 2808static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2809 struct ieee80211_vif *vif,
2810 struct cfg80211_sched_scan_request *req,
633e2713 2811 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2812{
2813 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2814
35a000b7 2815 int ret;
4660dfbb 2816
35a000b7
DS		 2817 mutex_lock(&mvm->mutex);
2818
1f940386 2819 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2820 ret = -EBUSY;
2821 goto out;
2822 }
2823
19945dfb 2824 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2825
35a000b7
DS		 2826out:
2827 mutex_unlock(&mvm->mutex);
2828 return ret;
2829}
2830
37e3308c
JB		 2831static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2832 struct ieee80211_vif *vif)
35a000b7
DS		 2833{
2834 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2835 int ret;
35a000b7
DS		 2836
2837 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2838
2839 /* Due to a race condition, it's possible that mac80211 asks
2840 * us to stop a sched_scan when it's already stopped. This
2841 * can happen, for instance, if we stopped the scan ourselves,
2842 * called ieee80211_sched_scan_stopped() and the userspace called
2843 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2844 * could run. To handle this, simply return if the scan is
2845 * not running.
2846 */
262888fc 2847 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2848 mutex_unlock(&mvm->mutex);
2849 return 0;
2850 }
2851
c7d42480 2852 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2853 mutex_unlock(&mvm->mutex);
33ea27f6 2854 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2855
33ea27f6 2856 return ret;
35a000b7
DS		 2857}
2858
8ca151b5
JB		 2859static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2860 enum set_key_cmd cmd,
2861 struct ieee80211_vif *vif,
2862 struct ieee80211_sta *sta,
2863 struct ieee80211_key_conf *key)
2864{
2865 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2866 int ret;
2867
2868 if (iwlwifi_mod_params.sw_crypto) {
2869 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2870 return -EOPNOTSUPP;
2871 }
2872
2873 switch (key->cipher) {
2874 case WLAN_CIPHER_SUITE_TKIP:
2875 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
8ca151b5
JB		 2876 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2877 break;
ca8c0f4b
JB		 2878 case WLAN_CIPHER_SUITE_CCMP:
2879 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2880 break;
8ca151b5 2881 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2882 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2883 break;
2884 case WLAN_CIPHER_SUITE_WEP40:
2885 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2886 /* For non-client mode, only use WEP keys for TX as we probably
2887 * don't have a station yet anyway and would then have to keep
2888 * track of the keys, linking them to each of the clients/peers
2889 * as they appear. For now, don't do that, for performance WEP
2890 * offload doesn't really matter much, but we need it for some
2891 * other offload features in client mode.
8ca151b5 2892 */
ba3943b0
JB		 2893 if (vif->type != NL80211_IFTYPE_STATION)
2894 return 0;
2895 break;
8ca151b5 2896 default:
e36e5433
MS		 2897 /* currently FW supports only one optional cipher scheme */
2898 if (hw->n_cipher_schemes &&
2899 hw->cipher_schemes->cipher == key->cipher)
2900 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2901 else
2902 return -EOPNOTSUPP;
8ca151b5
JB		 2903 }
2904
2905 mutex_lock(&mvm->mutex);
2906
2907 switch (cmd) {
2908 case SET_KEY:
5023d966
JB		 2909 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2910 vif->type == NL80211_IFTYPE_AP) && !sta) {
2911 /*
2912 * GTK on AP interface is a TX-only key, return 0;
2913 * on IBSS they're per-station and because we're lazy
2914 * we don't support them for RX, so do the same.
2915 */
6caffd4f
JB		 2916 ret = 0;
2917 key->hw_key_idx = STA_KEY_IDX_INVALID;
2918 break;
2919 }
2920
b546dcd6
JB		 2921 /* During FW restart, in order to restore the state as it was,
2922 * don't try to reprogram keys we previously failed for.
2923 */
2924 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2925 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2926 IWL_DEBUG_MAC80211(mvm,
2927 "skip invalid idx key programming during restart\n");
2928 ret = 0;
2929 break;
2930 }
2931
8ca151b5 2932 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2933 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2934 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2935 &mvm->status));
8ca151b5
JB		 2936 if (ret) {
2937 IWL_WARN(mvm, "set key failed\n");
2938 /*
2939 * can't add key for RX, but we don't need it
2940 * in the device for TX so still return 0
2941 */
6caffd4f 2942 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2943 ret = 0;
2944 }
2945
2946 break;
2947 case DISABLE_KEY:
6caffd4f
JB		 2948 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2949 ret = 0;
2950 break;
2951 }
2952
8ca151b5
JB		 2953 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2954 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2955 break;
2956 default:
2957 ret = -EINVAL;
2958 }
2959
2960 mutex_unlock(&mvm->mutex);
2961 return ret;
2962}
2963
2964static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2965 struct ieee80211_vif *vif,
2966 struct ieee80211_key_conf *keyconf,
2967 struct ieee80211_sta *sta,
2968 u32 iv32, u16 *phase1key)
2969{
2970 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2971
5023d966
JB		 2972 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2973 return;
2974
8ca151b5
JB		 2975 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2976}
2977
2978
b112889c
AM		 2979static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2980 struct iwl_rx_packet *pkt, void *data)
2981{
2982 struct iwl_mvm *mvm =
2983 container_of(notif_wait, struct iwl_mvm, notif_wait);
2984 struct iwl_hs20_roc_res *resp;
2985 int resp_len = iwl_rx_packet_payload_len(pkt);
2986 struct iwl_mvm_time_event_data *te_data = data;
2987
2988 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2989 return true;
2990
2991 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2992 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2993 return true;
2994 }
2995
2996 resp = (void *)pkt->data;
2997
2998 IWL_DEBUG_TE(mvm,
2999 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3000 resp->status, resp->event_unique_id);
3001
3002 te_data->uid = le32_to_cpu(resp->event_unique_id);
3003 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3004 te_data->uid);
3005
3006 spin_lock_bh(&mvm->time_event_lock);
3007 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3008 spin_unlock_bh(&mvm->time_event_lock);
3009
3010 return true;
3011}
3012
35d3dab5 3013#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3014static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3015 struct ieee80211_channel *channel,
3016 struct ieee80211_vif *vif,
3017 int duration)
3018{
3019 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3021 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3022 static const u8 time_event_response[] = { HOT_SPOT_CMD };
3023 struct iwl_notification_wait wait_time_event;
3024 struct iwl_hs20_roc_req aux_roc_req = {
3025 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3026 .id_and_color =
3027 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3028 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3029 /* Set the channel info data */
3030 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3031 PHY_BAND_24 : PHY_BAND_5,
3032 .channel_info.channel = channel->hw_value,
3033 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3034 /* Set the time and duration */
3035 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3036 .apply_time_max_delay =
3037 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3038 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3039 };
3040
3041 /* Set the node address */
3042 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3043
a6cc5163
MG		 3044 lockdep_assert_held(&mvm->mutex);
3045
3046 spin_lock_bh(&mvm->time_event_lock);
3047
3048 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3049 spin_unlock_bh(&mvm->time_event_lock);
3050 return -EIO;
3051 }
3052
b112889c
AM		 3053 te_data->vif = vif;
3054 te_data->duration = duration;
3055 te_data->id = HOT_SPOT_CMD;
3056
b112889c
AM		 3057 spin_unlock_bh(&mvm->time_event_lock);
3058
3059 /*
3060 * Use a notification wait, which really just processes the
3061 * command response and doesn't wait for anything, in order
3062 * to be able to process the response and get the UID inside
3063 * the RX path. Using CMD_WANT_SKB doesn't work because it
3064 * stores the buffer and then wakes up this thread, by which
3065 * time another notification (that the time event started)
3066 * might already be processed unsuccessfully.
3067 */
3068 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3069 time_event_response,
3070 ARRAY_SIZE(time_event_response),
3071 iwl_mvm_rx_aux_roc, te_data);
3072
3073 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3074 &aux_roc_req);
3075
3076 if (res) {
3077 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3078 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3079 goto out_clear_te;
3080 }
3081
3082 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3083 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3084 /* should never fail */
3085 WARN_ON_ONCE(res);
3086
3087 if (res) {
3088 out_clear_te:
3089 spin_lock_bh(&mvm->time_event_lock);
3090 iwl_mvm_te_clear_data(mvm, te_data);
3091 spin_unlock_bh(&mvm->time_event_lock);
3092 }
3093
3094 return res;
3095}
3096
8ca151b5
JB		 3097static int iwl_mvm_roc(struct ieee80211_hw *hw,
3098 struct ieee80211_vif *vif,
3099 struct ieee80211_channel *channel,
d339d5ca
IP		 3100 int duration,
3101 enum ieee80211_roc_type type)
8ca151b5
JB		 3102{
3103 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3104 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3105 struct cfg80211_chan_def chandef;
31d385ae
IP		 3106 struct iwl_mvm_phy_ctxt *phy_ctxt;
3107 int ret, i;
3108
3109 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3110 duration, type);
8ca151b5 3111
6ed13164
MG		 3112 flush_work(&mvm->roc_done_wk);
3113
a6cc5163
MG		 3114 mutex_lock(&mvm->mutex);
3115
b112889c
AM		 3116 switch (vif->type) {
3117 case NL80211_IFTYPE_STATION:
859d914c
JB		 3118 if (fw_has_capa(&mvm->fw->ucode_capa,
3119 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3120 /* Use aux roc framework (HS20) */
3121 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3122 vif, duration);
3123 goto out_unlock;
3124 }
3125 IWL_ERR(mvm, "hotspot not supported\n");
3126 ret = -EINVAL;
a6cc5163 3127 goto out_unlock;
b112889c
AM		 3128 case NL80211_IFTYPE_P2P_DEVICE:
3129 /* handle below */
3130 break;
3131 default:
3132 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3133 ret = -EINVAL;
3134 goto out_unlock;
8ca151b5
JB		 3135 }
3136
31d385ae
IP		 3137 for (i = 0; i < NUM_PHY_CTX; i++) {
3138 phy_ctxt = &mvm->phy_ctxts[i];
3139 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3140 continue;
3141
3142 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3143 /*
3144 * Unbind the P2P_DEVICE from the current PHY context,
3145 * and if the PHY context is not used remove it.
3146 */
3147 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3148 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3149 goto out_unlock;
3150
3151 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3152
3153 /* Bind the P2P_DEVICE to the current PHY Context */
3154 mvmvif->phy_ctxt = phy_ctxt;
3155
3156 ret = iwl_mvm_binding_add_vif(mvm, vif);
3157 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3158 goto out_unlock;
3159
3160 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3161 goto schedule_time_event;
3162 }
3163 }
3164
3165 /* Need to update the PHY context only if the ROC channel changed */
3166 if (channel == mvmvif->phy_ctxt->channel)
3167 goto schedule_time_event;
3168
8ca151b5 3169 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3170
31d385ae
IP		 3171 /*
3172 * Change the PHY context configuration as it is currently referenced
3173 * only by the P2P Device MAC
3174 */
3175 if (mvmvif->phy_ctxt->ref == 1) {
3176 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3177 &chandef, 1, 1);
3178 if (ret)
3179 goto out_unlock;
3180 } else {
3181 /*
3182 * The PHY context is shared with other MACs. Need to remove the
3183 * P2P Device from the binding, allocate an new PHY context and
3184 * create a new binding
3185 */
3186 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3187 if (!phy_ctxt) {
3188 ret = -ENOSPC;
3189 goto out_unlock;
3190 }
3191
3192 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3193 1, 1);
3194 if (ret) {
3195 IWL_ERR(mvm, "Failed to change PHY context\n");
3196 goto out_unlock;
3197 }
3198
3199 /* Unbind the P2P_DEVICE from the current PHY context */
3200 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3201 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3202 goto out_unlock;
3203
3204 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3205
3206 /* Bind the P2P_DEVICE to the new allocated PHY context */
3207 mvmvif->phy_ctxt = phy_ctxt;
3208
3209 ret = iwl_mvm_binding_add_vif(mvm, vif);
3210 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3211 goto out_unlock;
3212
3213 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3214 }
3215
3216schedule_time_event:
8ca151b5 3217 /* Schedule the time events */
e635c797 3218 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3219
31d385ae 3220out_unlock:
8ca151b5
JB		 3221 mutex_unlock(&mvm->mutex);
3222 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3223 return ret;
3224}
3225
3226static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3227{
3228 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3229
3230 IWL_DEBUG_MAC80211(mvm, "enter\n");
3231
3232 mutex_lock(&mvm->mutex);
bf5da87f 3233 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3234 mutex_unlock(&mvm->mutex);
3235
3236 IWL_DEBUG_MAC80211(mvm, "leave\n");
3237 return 0;
3238}
3239
b08c1d97
LC		 3240static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3241 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3242{
fe0f2de3
IP		 3243 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3244 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3245 int ret;
3246
b08c1d97
LC		 3247 lockdep_assert_held(&mvm->mutex);
3248
53a9d61e 3249 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3250
fe0f2de3
IP		 3251 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3252 if (!phy_ctxt) {
3253 ret = -ENOSPC;
3254 goto out;
3255 }
8ca151b5 3256
dcbc3e1a 3257 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3258 ctx->rx_chains_static,
3259 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3260 if (ret) {
3261 IWL_ERR(mvm, "Failed to add PHY context\n");
3262 goto out;
3263 }
3264
53a9d61e 3265 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3266 *phy_ctxt_id = phy_ctxt->id;
3267out:
b08c1d97
LC		 3268 return ret;
3269}
3270
3271static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3272 struct ieee80211_chanctx_conf *ctx)
3273{
3274 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3275 int ret;
3276
3277 mutex_lock(&mvm->mutex);
3278 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3279 mutex_unlock(&mvm->mutex);
b08c1d97 3280
8ca151b5
JB		 3281 return ret;
3282}
3283
b08c1d97
LC		 3284static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3285 struct ieee80211_chanctx_conf *ctx)
3286{
3287 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3288 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3289
3290 lockdep_assert_held(&mvm->mutex);
3291
3292 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3293}
3294
8ca151b5
JB		 3295static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3296 struct ieee80211_chanctx_conf *ctx)
3297{
3298 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3299
3300 mutex_lock(&mvm->mutex);
b08c1d97 3301 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3302 mutex_unlock(&mvm->mutex);
3303}
3304
3305static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3306 struct ieee80211_chanctx_conf *ctx,
3307 u32 changed)
3308{
3309 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3310 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3311 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3312
31d385ae
IP		 3313 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3314 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3315 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3316 IEEE80211_CHANCTX_CHANGE_RADAR |
3317 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3318 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3319 phy_ctxt->ref, changed))
3320 return;
3321
8ca151b5 3322 mutex_lock(&mvm->mutex);
4d66449a 3323 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3324 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3325 ctx->rx_chains_static,
3326 ctx->rx_chains_dynamic);
3327 mutex_unlock(&mvm->mutex);
3328}
3329
b08c1d97
LC		 3330static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3331 struct ieee80211_vif *vif,
f0c97783
LC		 3332 struct ieee80211_chanctx_conf *ctx,
3333 bool switching_chanctx)
8ca151b5 3334{
fe0f2de3
IP		 3335 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3336 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3337 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3338 int ret;
3339
b08c1d97 3340 lockdep_assert_held(&mvm->mutex);
8ca151b5 3341
fe0f2de3 3342 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3343
3344 switch (vif->type) {
3345 case NL80211_IFTYPE_AP:
4741dd04
LC		 3346 /* only needed if we're switching chanctx (i.e. during CSA) */
3347 if (switching_chanctx) {
bd3398e2
AO		 3348 mvmvif->ap_ibss_active = true;
3349 break;
3350 }
5023d966 3351 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3352 /*
3353 * The AP binding flow is handled as part of the start_ap flow
5023d966 3354 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3355 */
3356 ret = 0;
b08c1d97 3357 goto out;
8ca151b5 3358 case NL80211_IFTYPE_STATION:
2533edce 3359 break;
8ca151b5 3360 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3361 /* always disable PS when a monitor interface is active */
3362 mvmvif->ps_disabled = true;
8ca151b5
JB		 3363 break;
3364 default:
3365 ret = -EINVAL;
b08c1d97 3366 goto out;
8ca151b5
JB		 3367 }
3368
3369 ret = iwl_mvm_binding_add_vif(mvm, vif);
3370 if (ret)
b08c1d97 3371 goto out;
8ca151b5
JB		 3372
3373 /*
92d85562
AB		 3374 * Power state must be updated before quotas,
3375 * otherwise fw will complain.
3376 */
999609f1 3377 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3378
3379 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3380 * interfaces. For the other types, the bss_info changed flow
3381 * will handle quota settings.
3382 */
3383 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3384 mvmvif->monitor_active = true;
7754ae79 3385 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3386 if (ret)
3387 goto out_remove_binding;
3388 }
3389
bd3398e2 3390 /* Handle binding during CSA */
a57c688d 3391 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3392 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3393 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3394 }
3395
4741dd04 3396 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3397 u32 duration = 2 * vif->bss_conf.beacon_int;
3398
3399 /* iwl_mvm_protect_session() reads directly from the
3400 * device (the system time), so make sure it is
3401 * available.
3402 */
3403 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3404 if (ret)
3405 goto out_remove_binding;
3406
3407 /* Protect the session to make sure we hear the first
3408 * beacon on the new channel.
3409 */
3410 iwl_mvm_protect_session(mvm, vif, duration, duration,
3411 vif->bss_conf.beacon_int / 2,
3412 true);
3413
3414 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3415
7754ae79 3416 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3417 }
3418
b08c1d97 3419 goto out;
8ca151b5 3420
b08c1d97 3421out_remove_binding:
8ca151b5 3422 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3423 iwl_mvm_power_update_mac(mvm);
b08c1d97 3424out:
8ca151b5
JB		 3425 if (ret)
3426 mvmvif->phy_ctxt = NULL;
3427 return ret;
3428}
b08c1d97
LC		 3429static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3430 struct ieee80211_vif *vif,
3431 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3432{
3433 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3434 int ret;
8ca151b5
JB		 3435
3436 mutex_lock(&mvm->mutex);
f0c97783 3437 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3438 mutex_unlock(&mvm->mutex);
3439
3440 return ret;
3441}
3442
3443static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3444 struct ieee80211_vif *vif,
f0c97783
LC		 3445 struct ieee80211_chanctx_conf *ctx,
3446 bool switching_chanctx)
b08c1d97
LC		 3447{
3448 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3449 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3450
3451 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3452
3453 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3454
8ca151b5 3455 switch (vif->type) {
5023d966 3456 case NL80211_IFTYPE_ADHOC:
b08c1d97 3457 goto out;
8ca151b5 3458 case NL80211_IFTYPE_MONITOR:
1e1391ca 3459 mvmvif->monitor_active = false;
2533edce 3460 mvmvif->ps_disabled = false;
8ca151b5 3461 break;
bd3398e2
AO		 3462 case NL80211_IFTYPE_AP:
3463 /* This part is triggered only during CSA */
4741dd04 3464 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3465 goto out;
bd3398e2 3466
7ef0aab6
AO		 3467 mvmvif->csa_countdown = false;
3468
003e5236
AO		 3469 /* Set CS bit on all the stations */
3470 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3471
3472 /* Save blocked iface, the timeout is set on the next beacon */
3473 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3474
bd3398e2 3475 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3476 break;
3477 case NL80211_IFTYPE_STATION:
3478 if (!switching_chanctx)
3479 break;
3480
3481 disabled_vif = vif;
3482
3dfd3a97 3483 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3484 break;
8ca151b5
JB		 3485 default:
3486 break;
3487 }
3488
7754ae79 3489 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3490 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3491
b08c1d97 3492out:
a11e144e 3493 mvmvif->phy_ctxt = NULL;
999609f1 3494 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3495}
3496
3497static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3498 struct ieee80211_vif *vif,
3499 struct ieee80211_chanctx_conf *ctx)
3500{
3501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3502
3503 mutex_lock(&mvm->mutex);
f0c97783 3504 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3505 mutex_unlock(&mvm->mutex);
3506}
3507
50cc9574
LC		 3508static int
3509iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3510 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3511{
b08c1d97
LC		 3512 int ret;
3513
b08c1d97 3514 mutex_lock(&mvm->mutex);
f0c97783 3515 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3516 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3517
3518 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3519 if (ret) {
3520 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3521 goto out_reassign;
3522 }
3523
f0c97783
LC		 3524 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3525 true);
b08c1d97
LC		 3526 if (ret) {
3527 IWL_ERR(mvm,
3528 "failed to assign new_ctx during channel switch\n");
3529 goto out_remove;
3530 }
3531
f697267f
AN		 3532 /* we don't support TDLS during DCM - can be caused by channel switch */
3533 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3534 iwl_mvm_teardown_tdls_peers(mvm);
3535
b08c1d97
LC		 3536 goto out;
3537
3538out_remove:
3539 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3540
3541out_reassign:
6fd1fb63 3542 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3543 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3544 goto out_restart;
3545 }
3546
6fd1fb63
LC		 3547 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3548 true)) {
b08c1d97
LC		 3549 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3550 goto out_restart;
3551 }
3552
3553 goto out;
3554
3555out_restart:
3556 /* things keep failing, better restart the hw */
3557 iwl_mvm_nic_restart(mvm, false);
3558
3559out:
3560 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3561
3562 return ret;
3563}
3564
48a256e8
LC		 3565static int
3566iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3567 struct ieee80211_vif_chanctx_switch *vifs)
3568{
3569 int ret;
3570
3571 mutex_lock(&mvm->mutex);
3572 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3573
3574 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3575 true);
3576 if (ret) {
3577 IWL_ERR(mvm,
3578 "failed to assign new_ctx during channel switch\n");
3579 goto out_reassign;
3580 }
3581
3582 goto out;
3583
3584out_reassign:
3585 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3586 true)) {
3587 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3588 goto out_restart;
3589 }
3590
3591 goto out;
3592
3593out_restart:
3594 /* things keep failing, better restart the hw */
3595 iwl_mvm_nic_restart(mvm, false);
3596
3597out:
3598 mutex_unlock(&mvm->mutex);
3599
3600 return ret;
3601}
3602
50cc9574
LC		 3603static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3604 struct ieee80211_vif_chanctx_switch *vifs,
3605 int n_vifs,
3606 enum ieee80211_chanctx_switch_mode mode)
3607{
3608 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3609 int ret;
3610
3611 /* we only support a single-vif right now */
3612 if (n_vifs > 1)
3613 return -EOPNOTSUPP;
3614
3615 switch (mode) {
3616 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3617 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3618 break;
3619 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3620 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3621 break;
3622 default:
3623 ret = -EOPNOTSUPP;
3624 break;
3625 }
3626
b08c1d97
LC		 3627 return ret;
3628}
3629
8ca151b5
JB		 3630static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3631 struct ieee80211_sta *sta,
3632 bool set)
3633{
3634 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3635 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3636
3637 if (!mvm_sta || !mvm_sta->vif) {
3638 IWL_ERR(mvm, "Station is not associated to a vif\n");
3639 return -EINVAL;
3640 }
3641
3642 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3643}
3644
507cadf2
DS		 3645#ifdef CONFIG_NL80211_TESTMODE
3646static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3647 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3648 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3649 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3650};
3651
3652static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3653 struct ieee80211_vif *vif,
3654 void *data, int len)
3655{
3656 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3657 int err;
3658 u32 noa_duration;
3659
3660 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3661 if (err)
3662 return err;
3663
3664 if (!tb[IWL_MVM_TM_ATTR_CMD])
3665 return -EINVAL;
3666
3667 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3668 case IWL_MVM_TM_CMD_SET_NOA:
3669 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3670 !vif->bss_conf.enable_beacon ||
3671 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3672 return -EINVAL;
3673
3674 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3675 if (noa_duration >= vif->bss_conf.beacon_int)
3676 return -EINVAL;
3677
3678 mvm->noa_duration = noa_duration;
3679 mvm->noa_vif = vif;
3680
7754ae79 3681 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3682 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3683 /* must be associated client vif - ignore authorized */
3684 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3685 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3686 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3687 return -EINVAL;
3688
3689 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3690 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3691 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3692 }
3693
3694 return -EOPNOTSUPP;
3695}
3696
3697static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3698 struct ieee80211_vif *vif,
3699 void *data, int len)
3700{
3701 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3702 int err;
3703
3704 mutex_lock(&mvm->mutex);
3705 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3706 mutex_unlock(&mvm->mutex);
3707
3708 return err;
3709}
3710#endif
3711
622e3f9b
LC		 3712static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3713 struct ieee80211_vif *vif,
3714 struct ieee80211_channel_switch *chsw)
3715{
3716 /* By implementing this operation, we prevent mac80211 from
3717 * starting its own channel switch timer, so that we can call
3718 * ieee80211_chswitch_done() ourselves at the right time
3719 * (which is when the absence time event starts).
3720 */
3721
3722 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3723 "dummy channel switch op\n");
3724}
3725
f028905c
LC		 3726static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3727 struct ieee80211_vif *vif,
3728 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3729{
3730 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3731 struct ieee80211_vif *csa_vif;
f6c34820 3732 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3733 u32 apply_time;
f028905c 3734 int ret;
bd3398e2
AO		 3735
3736 mutex_lock(&mvm->mutex);
664322fa 3737
81d62d5a
JB		 3738 mvmvif->csa_failed = false;
3739
6b20d774 3740 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3741 chsw->chandef.center_freq1);
6b20d774 3742
21023b1e 3743 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3744
6b20d774
LC		 3745 switch (vif->type) {
3746 case NL80211_IFTYPE_AP:
3747 csa_vif =
3748 rcu_dereference_protected(mvm->csa_vif,
3749 lockdep_is_held(&mvm->mutex));
3750 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3751 "Another CSA is already in progress")) {
3752 ret = -EBUSY;
3753 goto out_unlock;
3754 }
3755
3756 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3757
7ef0aab6
AO		 3758 if (WARN_ONCE(mvmvif->csa_countdown,
3759 "Previous CSA countdown didn't complete")) {
3760 ret = -EBUSY;
3761 goto out_unlock;
3762 }
3763
6b20d774 3764 break;
dc88b4ba 3765 case NL80211_IFTYPE_STATION:
4500e133
LC		 3766 /* Schedule the time event to a bit before beacon 1,
3767 * to make sure we're in the new channel when the
3768 * GO/AP arrives.
3769 */
3770 apply_time = chsw->device_timestamp +
3771 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3772 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3773
3774 if (chsw->block_tx)
3775 iwl_mvm_csa_client_absent(mvm, vif);
3776
4500e133 3777 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3778 apply_time);
c6e0a3e0
LC		 3779 if (mvmvif->bf_data.bf_enabled) {
3780 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3781 if (ret)
3782 goto out_unlock;
3783 }
3784
dc88b4ba 3785 break;
6b20d774
LC		 3786 default:
3787 break;
3788 }
bd3398e2 3789
f6c34820
LC		 3790 mvmvif->ps_disabled = true;
3791
3792 ret = iwl_mvm_power_update_ps(mvm);
3793 if (ret)
3794 goto out_unlock;
f028905c 3795
e198f5e7
AN		 3796 /* we won't be on this channel any longer */
3797 iwl_mvm_teardown_tdls_peers(mvm);
3798
bd3398e2
AO		 3799out_unlock:
3800 mutex_unlock(&mvm->mutex);
f028905c
LC		 3801
3802 return ret;
bd3398e2
AO		 3803}
3804
f6c34820
LC		 3805static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3806 struct ieee80211_vif *vif)
3807{
3808 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3809 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3810 int ret;
3811
3812 mutex_lock(&mvm->mutex);
3813
81d62d5a
JB		 3814 if (mvmvif->csa_failed) {
3815 mvmvif->csa_failed = false;
3816 ret = -EIO;
3817 goto out_unlock;
3818 }
3819
a57c688d
LC		 3820 if (vif->type == NL80211_IFTYPE_STATION) {
3821 struct iwl_mvm_sta *mvmsta;
3822
3823 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3824 mvmvif->ap_sta_id);
3825
3826 if (WARN_ON(!mvmsta)) {
3827 ret = -EIO;
3828 goto out_unlock;
3829 }
3830
3831 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3832
3833 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3834
3835 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3836 if (ret)
3837 goto out_unlock;
686e7fe1
LC		 3838
3839 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3840 }
3841
f6c34820
LC		 3842 mvmvif->ps_disabled = false;
3843
3844 ret = iwl_mvm_power_update_ps(mvm);
3845
a57c688d 3846out_unlock:
f6c34820
LC		 3847 mutex_unlock(&mvm->mutex);
3848
3849 return ret;
3850}
3851
c5b0e7c0
EG		 3852static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3853 struct ieee80211_vif *vif, u32 queues, bool drop)
3854{
3855 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3856 struct iwl_mvm_vif *mvmvif;
3857 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3858 struct ieee80211_sta *sta;
3859 int i;
3860 u32 msk = 0;
c5b0e7c0
EG		 3861
3862 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3863 return;
3864
3865 mutex_lock(&mvm->mutex);
3866 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3867
a0f6bf2a
AN		 3868 /* flush the AP-station and all TDLS peers */
3869 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3870 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3871 lockdep_is_held(&mvm->mutex));
3872 if (IS_ERR_OR_NULL(sta))
3873 continue;
3874
3875 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3876 if (mvmsta->vif != vif)
3877 continue;
3878
3879 /* make sure only TDLS peers or the AP are flushed */
3880 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3881
3882 msk |= mvmsta->tfd_queue_msk;
480acbce 3883 }
c5b0e7c0 3884
6d440b25
EG		 3885 if (drop) {
3886 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3887 IWL_ERR(mvm, "flush request fail\n");
3888 mutex_unlock(&mvm->mutex);
3889 } else {
3890 mutex_unlock(&mvm->mutex);
4e6c48e0 3891
6d440b25
EG		 3892 /* this can take a while, and we may need/want other operations
3893 * to succeed while doing this, so do it without the mutex held
3894 */
3895 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3896 }
c5b0e7c0
EG		 3897}
3898
91a8bcde
JB		 3899static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3900 struct survey_info *survey)
3901{
3902 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3903 int ret;
3904
3905 memset(survey, 0, sizeof(*survey));
3906
3907 /* only support global statistics right now */
3908 if (idx != 0)
3909 return -ENOENT;
3910
859d914c 3911 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3912 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3913 return -ENOENT;
3914
3915 mutex_lock(&mvm->mutex);
3916
3917 if (mvm->ucode_loaded) {
33cef925 3918 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3919 if (ret)
3920 goto out;
3921 }
3922
3923 survey->filled = SURVEY_INFO_TIME |
3924 SURVEY_INFO_TIME_RX |
3925 SURVEY_INFO_TIME_TX |
3926 SURVEY_INFO_TIME_SCAN;
3927 survey->time = mvm->accu_radio_stats.on_time_rf +
3928 mvm->radio_stats.on_time_rf;
3929 do_div(survey->time, USEC_PER_MSEC);
3930
3931 survey->time_rx = mvm->accu_radio_stats.rx_time +
3932 mvm->radio_stats.rx_time;
3933 do_div(survey->time_rx, USEC_PER_MSEC);
3934
3935 survey->time_tx = mvm->accu_radio_stats.tx_time +
3936 mvm->radio_stats.tx_time;
3937 do_div(survey->time_tx, USEC_PER_MSEC);
3938
3939 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3940 mvm->radio_stats.on_time_scan;
3941 do_div(survey->time_scan, USEC_PER_MSEC);
3942
10a7c028 3943 ret = 0;
91a8bcde
JB		 3944 out:
3945 mutex_unlock(&mvm->mutex);
3946 return ret;
3947}
3948
33cef925
JB		 3949static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3950 struct ieee80211_vif *vif,
3951 struct ieee80211_sta *sta,
3952 struct station_info *sinfo)
3953{
3954 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3955 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3956 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3957
859d914c
JB		 3958 if (fw_has_capa(&mvm->fw->ucode_capa,
3959 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3960 return;
3961
3962 /* if beacon filtering isn't on mac80211 does it anyway */
3963 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3964 return;
3965
3966 if (!vif->bss_conf.assoc)
3967 return;
3968
3969 mutex_lock(&mvm->mutex);
3970
3971 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3972 goto unlock;
3973
3974 if (iwl_mvm_request_statistics(mvm, false))
3975 goto unlock;
3976
3977 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3978 mvmvif->beacon_stats.accu_num_beacons;
3979 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3980 if (mvmvif->beacon_stats.avg_signal) {
3981 /* firmware only reports a value after RXing a few beacons */
3982 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3983 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3984 }
3985 unlock:
3986 mutex_unlock(&mvm->mutex);
3987}
3988
4203263d
EG		 3989static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3990 struct ieee80211_vif *vif,
3991 const struct ieee80211_event *event)
d42f5350 3992{
5d4f929e 3993#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3994 do { \
3995 if ((_cnt) && --(_cnt)) \
3996 break; \
5d4f929e 3997 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3998 } while (0)
3999
d42f5350
EG		 4000 struct iwl_fw_dbg_trigger_tlv *trig;
4001 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4002
4003 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4004 return;
4005
d42f5350
EG		 4006 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4007 trig_mlme = (void *)trig->data;
4008 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4009 return;
4010
d42f5350
EG		 4011 if (event->u.mlme.data == ASSOC_EVENT) {
4012 if (event->u.mlme.status == MLME_DENIED)
4013 CHECK_MLME_TRIGGER(mvm, trig, buf,
4014 trig_mlme->stop_assoc_denied,
4015 "DENIED ASSOC: reason %d",
4016 event->u.mlme.reason);
4017 else if (event->u.mlme.status == MLME_TIMEOUT)
4018 CHECK_MLME_TRIGGER(mvm, trig, buf,
4019 trig_mlme->stop_assoc_timeout,
4020 "ASSOC TIMEOUT");
4021 } else if (event->u.mlme.data == AUTH_EVENT) {
4022 if (event->u.mlme.status == MLME_DENIED)
4023 CHECK_MLME_TRIGGER(mvm, trig, buf,
4024 trig_mlme->stop_auth_denied,
4025 "DENIED AUTH: reason %d",
4026 event->u.mlme.reason);
4027 else if (event->u.mlme.status == MLME_TIMEOUT)
4028 CHECK_MLME_TRIGGER(mvm, trig, buf,
4029 trig_mlme->stop_auth_timeout,
4030 "AUTH TIMEOUT");
4031 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4032 CHECK_MLME_TRIGGER(mvm, trig, buf,
4033 trig_mlme->stop_rx_deauth,
4034 "DEAUTH RX %d", event->u.mlme.reason);
4035 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4036 CHECK_MLME_TRIGGER(mvm, trig, buf,
4037 trig_mlme->stop_tx_deauth,
4038 "DEAUTH TX %d", event->u.mlme.reason);
4039 }
4040#undef CHECK_MLME_TRIGGER
4041}
4042
4203263d
EG		 4043static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4044 struct ieee80211_vif *vif,
4045 const struct ieee80211_event *event)
4046{
4047 struct iwl_fw_dbg_trigger_tlv *trig;
4048 struct iwl_fw_dbg_trigger_ba *ba_trig;
4049
4050 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4051 return;
4052
4053 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4054 ba_trig = (void *)trig->data;
4055 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4056 return;
4057
4058 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4059 return;
4060
4061 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4062 "BAR received from %pM, tid %d, ssn %d",
4063 event->u.ba.sta->addr, event->u.ba.tid,
4064 event->u.ba.ssn);
4065}
4066
4067static void
4068iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4069 struct ieee80211_vif *vif,
4070 const struct ieee80211_event *event)
4071{
4072 struct iwl_fw_dbg_trigger_tlv *trig;
4073 struct iwl_fw_dbg_trigger_ba *ba_trig;
4074
4075 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4076 return;
4077
4078 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4079 ba_trig = (void *)trig->data;
4080 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4081 return;
4082
4083 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4084 return;
4085
4086 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4087 "Frame from %pM timed out, tid %d",
4088 event->u.ba.sta->addr, event->u.ba.tid);
4089}
4090
4091static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4092 struct ieee80211_vif *vif,
4093 const struct ieee80211_event *event)
4094{
4095 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4096
4097 switch (event->type) {
4098 case MLME_EVENT:
4099 iwl_mvm_event_mlme_callback(mvm, vif, event);
4100 break;
4101 case BAR_RX_EVENT:
4102 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4103 break;
4104 case BA_FRAME_TIMEOUT:
4105 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4106 break;
4107 default:
4108 break;
4109 }
4110}
4111
e5209263 4112const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4113 .tx = iwl_mvm_mac_tx,
4114 .ampdu_action = iwl_mvm_mac_ampdu_action,
4115 .start = iwl_mvm_mac_start,
cf2c92d8 4116 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4117 .stop = iwl_mvm_mac_stop,
4118 .add_interface = iwl_mvm_mac_add_interface,
4119 .remove_interface = iwl_mvm_mac_remove_interface,
4120 .config = iwl_mvm_mac_config,
e59647ea 4121 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4122 .configure_filter = iwl_mvm_configure_filter,
4123 .bss_info_changed = iwl_mvm_bss_info_changed,
4124 .hw_scan = iwl_mvm_mac_hw_scan,
4125 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4126 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4127 .sta_state = iwl_mvm_mac_sta_state,
4128 .sta_notify = iwl_mvm_mac_sta_notify,
4129 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4130 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4131 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4132 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4133 .conf_tx = iwl_mvm_mac_conf_tx,
4134 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4135 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4136 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4137 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4138 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4139 .set_key = iwl_mvm_mac_set_key,
4140 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4141 .remain_on_channel = iwl_mvm_roc,
4142 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4143 .add_chanctx = iwl_mvm_add_chanctx,
4144 .remove_chanctx = iwl_mvm_remove_chanctx,
4145 .change_chanctx = iwl_mvm_change_chanctx,
4146 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4147 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4148 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4149
5023d966
JB		 4150 .start_ap = iwl_mvm_start_ap_ibss,
4151 .stop_ap = iwl_mvm_stop_ap_ibss,
4152 .join_ibss = iwl_mvm_start_ap_ibss,
4153 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4154
4155 .set_tim = iwl_mvm_set_tim,
4156
622e3f9b 4157 .channel_switch = iwl_mvm_channel_switch,
f028905c 4158 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4159 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4160
1d3c3f63
AN		 4161 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4162 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4163 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4164
d42f5350
EG		 4165 .event_callback = iwl_mvm_mac_event_callback,
4166
507cadf2
DS		 4167 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4168
8ca151b5
JB		 4169#ifdef CONFIG_PM_SLEEP
4170 /* look at d3.c */
4171 .suspend = iwl_mvm_suspend,
4172 .resume = iwl_mvm_resume,
4173 .set_wakeup = iwl_mvm_set_wakeup,
4174 .set_rekey_data = iwl_mvm_set_rekey_data,
4175#if IS_ENABLED(CONFIG_IPV6)
4176 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4177#endif
4178 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4179#endif
91a8bcde 4180 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4181 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4182};
Linux kernel - Deliverables
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