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iwlwifi: mvm: fix a range check in debugfs code
[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;
36fb9017 1127 bool monitor_dump_only = false;
655e6d6d
EG		 1128
1129 lockdep_assert_held(&mvm->mutex);
1130
36fb9017
OG		 1131 if (mvm->fw_dump_trig &&
1132 mvm->fw_dump_trig->mode & IWL_FW_DBG_TRIGGER_MONITOR_ONLY)
1133 monitor_dump_only = true;
1134
aadede6e 1135 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1136 if (!fw_error_dump)
1137 return;
1138
f53bf4c7
LK		 1139 /* SRAM - include stack CCM if driver knows the values for it */
1140 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1141 const struct fw_img *img;
1142
1143 img = &mvm->fw->img[mvm->cur_ucode];
1144 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1145 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1146 } else {
1147 sram_ofs = mvm->cfg->dccm_offset;
1148 sram_len = mvm->cfg->dccm_len;
1149 }
655e6d6d 1150
04fd2c28
LK		 1151 /* reading RXF/TXF sizes */
1152 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1153 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1154 int i;
1155
1156 fifo_data_len = 0;
1157
1158 /* Count RXF size */
1159 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1160 if (!mem_cfg->rxfifo_size[i])
1161 continue;
1162
1163 /* Add header info */
1164 fifo_data_len += mem_cfg->rxfifo_size[i] +
1165 sizeof(*dump_data) +
1166 sizeof(struct iwl_fw_error_dump_fifo);
1167 }
1168
1169 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1170 if (!mem_cfg->txfifo_size[i])
1171 continue;
655e6d6d 1172
04fd2c28
LK		 1173 /* Add header info */
1174 fifo_data_len += mem_cfg->txfifo_size[i] +
1175 sizeof(*dump_data) +
1176 sizeof(struct iwl_fw_error_dump_fifo);
1177 }
1178 }
655e6d6d
EG		 1179
1180 file_len = sizeof(*dump_file) +
04fd2c28 1181 sizeof(*dump_data) * 2 +
a549b296 1182 sram_len + sizeof(*dump_mem) +
04fd2c28 1183 fifo_data_len +
655e6d6d
EG		 1184 sizeof(*dump_info);
1185
36fb9017
OG		 1186 /* Make room for the SMEM, if it exists */
1187 if (smem_len)
1188 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
1189
1190 /* Make room for the secondary SRAM, if it exists */
1191 if (sram2_len)
1192 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1193
1194 /* If we only want a monitor dump, reset the file length */
1195 if (monitor_dump_only) {
1196 file_len = sizeof(*dump_file) + sizeof(*dump_data) +
1197 sizeof(*dump_info);
1198 }
1199
e539761d
LK		 1200 /*
1201 * In 8000 HW family B-step include the ICCM (which resides separately)
1202 */
1203 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1204 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1205 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1206 IWL8260_ICCM_LEN;
1207
b6eaa45a
EG		 1208 if (mvm->fw_dump_desc)
1209 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1210 mvm->fw_dump_desc->len;
1211
5bfe6f53 1212 dump_file = vzalloc(file_len);
48eb7b34
EG		 1213 if (!dump_file) {
1214 kfree(fw_error_dump);
b6eaa45a 1215 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1216 return;
48eb7b34 1217 }
655e6d6d 1218
48eb7b34 1219 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1220
1221 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1222 dump_data = (void *)dump_file->data;
1223
1224 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1225 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1226 dump_info = (void *) dump_data->data;
1227 dump_info->device_family =
1228 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1229 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1230 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1231 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1232 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1233 sizeof(dump_info->fw_human_readable));
1234 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1235 sizeof(dump_info->dev_human_readable));
1236 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1237 sizeof(dump_info->bus_human_readable));
1238
1239 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1240 /* We only dump the FIFOs if the FW is in error state */
1241 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1242 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1243
b6eaa45a
EG		 1244 if (mvm->fw_dump_desc) {
1245 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1246 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1247 mvm->fw_dump_desc->len);
1248 dump_trig = (void *)dump_data->data;
1249 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1250 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1251
1252 /* now we can free this copy */
1253 iwl_mvm_free_fw_dump_desc(mvm);
1254 dump_data = iwl_fw_error_next_data(dump_data);
1255 }
1256
36fb9017
OG		 1257 /* In case we only want monitor dump, skip to dump trasport data */
1258 if (monitor_dump_only)
1259 goto dump_trans_data;
1260
a549b296
EG		 1261 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1262 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1263 dump_mem = (void *)dump_data->data;
1264 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1265 dump_mem->offset = cpu_to_le32(sram_ofs);
1266 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1267 sram_len);
1268
addfaada
LK		 1269 if (smem_len) {
1270 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1271 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1272 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1273 dump_mem = (void *)dump_data->data;
1274 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1275 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1276 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1277 dump_mem->data, smem_len);
addfaada
LK		 1278 }
1279
86138324
IY		 1280 if (sram2_len) {
1281 dump_data = iwl_fw_error_next_data(dump_data);
1282 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1283 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1284 dump_mem = (void *)dump_data->data;
1285 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1286 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1287 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1288 dump_mem->data, sram2_len);
1289 }
1290
e539761d
LK		 1291 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1292 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1293 dump_data = iwl_fw_error_next_data(dump_data);
1294 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1295 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1296 sizeof(*dump_mem));
1297 dump_mem = (void *)dump_data->data;
1298 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1299 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1300 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1301 dump_mem->data, IWL8260_ICCM_LEN);
1302 }
1303
36fb9017
OG		 1304dump_trans_data:
1305 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans,
1306 mvm->fw_dump_trig);
48eb7b34
EG		 1307 fw_error_dump->op_mode_len = file_len;
1308 if (fw_error_dump->trans_ptr)
1309 file_len += fw_error_dump->trans_ptr->len;
1310 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1311
aadede6e
JB		 1312 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1313 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7 1314
36fb9017 1315 mvm->fw_dump_trig = NULL;
d2709ad7 1316 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1317}
655e6d6d 1318
b6eaa45a
EG		 1319struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1320 .trig_desc = {
1321 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1322 },
1323};
1324
8ca151b5
JB		 1325static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1326{
58629d9d
JB		 1327 /* clear the D3 reconfig, we only need it to avoid dumping a
1328 * firmware coredump on reconfiguration, we shouldn't do that
1329 * on D3->D0 transition
1330 */
b6eaa45a
EG		 1331 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1332 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1333 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1334 }
1bd3cbc1 1335
744cb695
EP		 1336 /* cleanup all stale references (scan, roc), but keep the
1337 * ucode_down ref until reconfig is complete
1338 */
1339 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1340
8ca151b5 1341 iwl_trans_stop_device(mvm->trans);
8ca151b5 1342
9af91f46 1343 mvm->scan_status = 0;
b1873300 1344 mvm->ps_disabled = false;
31b8b343 1345 mvm->calibrating = false;
8ca151b5
JB		 1346
1347 /* just in case one was running */
1348 ieee80211_remain_on_channel_expired(mvm->hw);
1349
737719fe
AN		 1350 /*
1351 * cleanup all interfaces, even inactive ones, as some might have
1352 * gone down during the HW restart
1353 */
1354 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1355
fe0f2de3 1356 mvm->p2p_device_vif = NULL;
37577fe2 1357 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1358
1359 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1360 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1361 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1362 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1363 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1364 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1365 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1366 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1367 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1368
1369 ieee80211_wake_queues(mvm->hw);
1370
228670b2
EP		 1371 /* clear any stale d0i3 state */
1372 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1373
8ca151b5 1374 mvm->vif_count = 0;
113a0447 1375 mvm->rx_ba_sessions = 0;
d2709ad7 1376 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1377
1378 /* keep statistics ticking */
1379 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1380}
1381
a0a09243 1382int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1383{
8ca151b5
JB		 1384 int ret;
1385
a0a09243 1386 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1387
1388 /* Clean up some internal and mac80211 state on restart */
1389 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1390 iwl_mvm_restart_cleanup(mvm);
1391
1392 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1393
1394 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1395 /* Something went wrong - we need to finish some cleanup
1396 * that normally iwl_mvm_mac_restart_complete() below
1397 * would do.
1398 */
1399 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1400 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1401 }
1402
a0a09243
LC		 1403 return ret;
1404}
1405
1406static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1407{
1408 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1409 int ret;
1410
37948fcf
EP		 1411 /* Some hw restart cleanups must not hold the mutex */
1412 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1413 /*
1414 * Make sure we are out of d0i3. This is needed
1415 * to make sure the reference accounting is correct
1416 * (and there is no stale d0i3_exit_work).
1417 */
1418 wait_event_timeout(mvm->d0i3_exit_waitq,
1419 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1420 &mvm->status),
1421 HZ);
1422 }
1423
a0a09243
LC		 1424 mutex_lock(&mvm->mutex);
1425 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1426 mutex_unlock(&mvm->mutex);
1427
1428 return ret;
1429}
1430
cf2c92d8 1431static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1432{
8ca151b5
JB		 1433 int ret;
1434
1435 mutex_lock(&mvm->mutex);
1436
1437 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1438 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1439 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1440 if (ret)
1441 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1442 ret);
1443
7498cf4c
EP		 1444 /* allow transport/FW low power modes */
1445 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1446
cbd2ae2d
AN		 1447 /*
1448 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1449 * of packets the FW sent out, so we must reconnect.
1450 */
1451 iwl_mvm_teardown_tdls_peers(mvm);
1452
8ca151b5
JB		 1453 mutex_unlock(&mvm->mutex);
1454}
1455
088070a2
EP		 1456static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1457{
088070a2
EP		 1458 if (!iwl_mvm_is_d0i3_supported(mvm))
1459 return;
1460
6735943f
EP		 1461 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1462 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1463 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1464 &mvm->status),
1465 HZ))
1466 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1467}
1468
cf2c92d8
EP		 1469static void
1470iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1471 enum ieee80211_reconfig_type reconfig_type)
1472{
1473 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1474
1475 switch (reconfig_type) {
1476 case IEEE80211_RECONFIG_TYPE_RESTART:
1477 iwl_mvm_restart_complete(mvm);
1478 break;
1479 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1480 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1481 break;
1482 }
1483}
1484
a0a09243 1485void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1486{
a0a09243 1487 lockdep_assert_held(&mvm->mutex);
7498cf4c 1488
91a8bcde
JB		 1489 /* firmware counters are obviously reset now, but we shouldn't
1490 * partially track so also clear the fw_reset_accu counters.
1491 */
1492 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1493
0a79a0c0
EP		 1494 /*
1495 * Disallow low power states when the FW is down by taking
1496 * the UCODE_DOWN ref. in case of ongoing hw restart the
1497 * ref is already taken, so don't take it again.
1498 */
1499 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1500 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1501
8ca151b5
JB		 1502 /* async_handlers_wk is now blocked */
1503
1504 /*
1505 * The work item could be running or queued if the
1506 * ROC time event stops just as we get here.
1507 */
c779273b 1508 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1509
1510 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1511
1512 iwl_mvm_async_handlers_purge(mvm);
1513 /* async_handlers_list is empty and will stay empty: HW is stopped */
1514
1515 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1516 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1517
0a79a0c0
EP		 1518 /*
1519 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1520 * won't be called in this case).
8b2b9fbf
AN		 1521 * But make sure to cleanup interfaces that have gone down before/during
1522 * HW restart was requested.
0a79a0c0 1523 */
8b2b9fbf
AN		 1524 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1525 ieee80211_iterate_interfaces(mvm->hw, 0,
1526 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1527
963221be
AB		 1528 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1529 * make sure there's nothing left there and warn if any is found.
1530 */
859d914c 1531 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1532 int i;
1533
507e4cda 1534 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1535 if (WARN_ONCE(mvm->scan_uid_status[i],
1536 "UMAC scan UID %d status was not cleaned\n",
1537 i))
1538 mvm->scan_uid_status[i] = 0;
963221be
AB		 1539 }
1540 }
1541
bc44886d 1542 mvm->ucode_loaded = false;
a0a09243 1543}
bc44886d 1544
a0a09243
LC		 1545static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1546{
1547 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1548
1549 flush_work(&mvm->d0i3_exit_work);
1550 flush_work(&mvm->async_handlers_wk);
d2709ad7 1551 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1552 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1553
1554 mutex_lock(&mvm->mutex);
1555 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1556 mutex_unlock(&mvm->mutex);
1557
1558 /*
1559 * The worker might have been waiting for the mutex, let it run and
1560 * discover that its list is now empty.
1561 */
1562 cancel_work_sync(&mvm->async_handlers_wk);
1563}
1564
fe0f2de3
IP		 1565static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1566{
1567 u16 i;
1568
1569 lockdep_assert_held(&mvm->mutex);
1570
1571 for (i = 0; i < NUM_PHY_CTX; i++)
1572 if (!mvm->phy_ctxts[i].ref)
1573 return &mvm->phy_ctxts[i];
1574
1575 IWL_ERR(mvm, "No available PHY context\n");
1576 return NULL;
1577}
1578
d44c3fe6
AA		 1579static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1580 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1581{
1582 /* FW is in charge of regulatory enforcement */
1583 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1584 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1585 .pwr_restriction = cpu_to_le16(tx_power),
1586 };
1587
a1022927 1588 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1589 sizeof(reduce_txpwr_cmd),
1590 &reduce_txpwr_cmd);
1591}
1592
d44c3fe6
AA		 1593static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1594 s16 tx_power)
1595{
1596 struct iwl_dev_tx_power_cmd cmd = {
1597 .set_mode = 0,
1598 .mac_context_id =
1599 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1600 .pwr_restriction = cpu_to_le16(8 * tx_power),
1601 };
1602
859d914c 1603 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_DEV))
d44c3fe6
AA		 1604 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1605
1606 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1607 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1608
1609 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1610 sizeof(cmd), &cmd);
1611}
1612
8ca151b5
JB		 1613static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1614 struct ieee80211_vif *vif)
1615{
1616 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1617 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1618 int ret;
1619
aa5e1832
EG		 1620 mvmvif->mvm = mvm;
1621
d40fc489
GG		 1622 /*
1623 * make sure D0i3 exit is completed, otherwise a target access
1624 * during tx queue configuration could be done when still in
1625 * D0i3 state.
1626 */
1627 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1628 if (ret)
1629 return ret;
1630
8ca151b5
JB		 1631 /*
1632 * Not much to do here. The stack will not allow interface
1633 * types or combinations that we didn't advertise, so we
1634 * don't really have to check the types.
1635 */
1636
1637 mutex_lock(&mvm->mutex);
1638
33cef925
JB		 1639 /* make sure that beacon statistics don't go backwards with FW reset */
1640 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1641 mvmvif->beacon_stats.accu_num_beacons +=
1642 mvmvif->beacon_stats.num_beacons;
1643
e89044d7 1644 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1645 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1646 if (ret)
1647 goto out_unlock;
1648
1c2abf72 1649 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1650 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1651 mvm->vif_count++;
ea183d02 1652
8ca151b5
JB		 1653 /*
1654 * The AP binding flow can be done only after the beacon
1655 * template is configured (which happens only in the mac80211
1656 * start_ap() flow), and adding the broadcast station can happen
1657 * only after the binding.
1658 * In addition, since modifying the MAC before adding a bcast
1659 * station is not allowed by the FW, delay the adding of MAC context to
1660 * the point where we can also add the bcast station.
1661 * In short: there's not much we can do at this point, other than
1662 * allocating resources :)
1663 */
5023d966
JB		 1664 if (vif->type == NL80211_IFTYPE_AP ||
1665 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1666 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1667 if (ret) {
1668 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1669 goto out_release;
1670 }
1671
77740cb4 1672 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1673 goto out_unlock;
1674 }
1675
93190fb0
AA		 1676 mvmvif->features |= hw->netdev_features;
1677
8ca151b5
JB		 1678 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1679 if (ret)
1680 goto out_release;
1681
999609f1 1682 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1683 if (ret)
fd66fc1c 1684 goto out_remove_mac;
8ca151b5 1685
7df15b1e 1686 /* beacon filtering */
a1022927 1687 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1688 if (ret)
1689 goto out_remove_mac;
1690
7df15b1e 1691 if (!mvm->bf_allowed_vif &&
73e5f2c5 1692 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1693 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1694 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1695 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1696 }
1697
8ca151b5
JB		 1698 /*
1699 * P2P_DEVICE interface does not have a channel context assigned to it,
1700 * so a dedicated PHY context is allocated to it and the corresponding
1701 * MAC context is bound to it at this stage.
1702 */
1703 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1704
fe0f2de3
IP		 1705 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1706 if (!mvmvif->phy_ctxt) {
1707 ret = -ENOSPC;
bd3351ba 1708 goto out_free_bf;
fe0f2de3 1709 }
8ca151b5 1710
53a9d61e 1711 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1712 ret = iwl_mvm_binding_add_vif(mvm, vif);
1713 if (ret)
53a9d61e 1714 goto out_unref_phy;
8ca151b5 1715
013290aa 1716 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1717 if (ret)
1718 goto out_unbind;
1719
1720 /* Save a pointer to p2p device vif, so it can later be used to
1721 * update the p2p device MAC when a GO is started/stopped */
1722 mvm->p2p_device_vif = vif;
1723 }
1724
63494374 1725 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1726 goto out_unlock;
1727
1728 out_unbind:
1729 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1730 out_unref_phy:
fe0f2de3 1731 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1732 out_free_bf:
1733 if (mvm->bf_allowed_vif == mvmvif) {
1734 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1735 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1736 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1737 }
8ca151b5
JB		 1738 out_remove_mac:
1739 mvmvif->phy_ctxt = NULL;
1740 iwl_mvm_mac_ctxt_remove(mvm, vif);
1741 out_release:
5ee2b215
AB		 1742 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1743 mvm->vif_count--;
1c2abf72 1744
8ca151b5
JB		 1745 iwl_mvm_mac_ctxt_release(mvm, vif);
1746 out_unlock:
1747 mutex_unlock(&mvm->mutex);
1748
d40fc489
GG		 1749 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1750
8ca151b5
JB		 1751 return ret;
1752}
1753
38a12b5b
JB		 1754static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1755 struct ieee80211_vif *vif)
8ca151b5 1756{
d92b732e 1757 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1758
1759 if (tfd_msk) {
fe92e32a
EG		 1760 /*
1761 * mac80211 first removes all the stations of the vif and
1762 * then removes the vif. When it removes a station it also
1763 * flushes the AMPDU session. So by now, all the AMPDU sessions
1764 * of all the stations of this vif are closed, and the queues
1765 * of these AMPDU sessions are properly closed.
1766 * We still need to take care of the shared queues of the vif.
1767 * Flush them here.
1768 */
8ca151b5
JB		 1769 mutex_lock(&mvm->mutex);
1770 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1771 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1772
1773 /*
1774 * There are transports that buffer a few frames in the host.
1775 * For these, the flush above isn't enough since while we were
1776 * flushing, the transport might have sent more frames to the
1777 * device. To solve this, wait here until the transport is
1778 * empty. Technically, this could have replaced the flush
1779 * above, but flush is much faster than draining. So flush
1780 * first, and drain to make sure we have no frames in the
1781 * transport anymore.
1782 * If a station still had frames on the shared queues, it is
1783 * already marked as draining, so to complete the draining, we
1784 * just need to wait until the transport is empty.
1785 */
1786 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1787 }
1788
1789 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1790 /*
1791 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1792 * We assume here that all the packets sent to the OFFCHANNEL
1793 * queue are sent in ROC session.
1794 */
1795 flush_work(&mvm->roc_done_wk);
1796 } else {
1797 /*
1798 * By now, all the AC queues are empty. The AGG queues are
1799 * empty too. We already got all the Tx responses for all the
1800 * packets in the queues. The drain work can have been
0742a75a 1801 * triggered. Flush it.
8ca151b5
JB		 1802 */
1803 flush_work(&mvm->sta_drained_wk);
1804 }
38a12b5b
JB		 1805}
1806
1807static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1808 struct ieee80211_vif *vif)
1809{
1810 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1811 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1812
1813 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1814
1815 mutex_lock(&mvm->mutex);
1816
7df15b1e
HG		 1817 if (mvm->bf_allowed_vif == mvmvif) {
1818 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1819 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1820 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1821 }
1822
63494374
JB		 1823 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1824
8ca151b5
JB		 1825 /*
1826 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1827 * interface is be handled as part of the stop_ap flow.
8ca151b5 1828 */
5023d966
JB		 1829 if (vif->type == NL80211_IFTYPE_AP ||
1830 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1831#ifdef CONFIG_NL80211_TESTMODE
1832 if (vif == mvm->noa_vif) {
1833 mvm->noa_vif = NULL;
1834 mvm->noa_duration = 0;
1835 }
1836#endif
013290aa 1837 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1838 goto out_release;
1839 }
1840
1841 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1842 mvm->p2p_device_vif = NULL;
013290aa 1843 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1844 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1845 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1846 mvmvif->phy_ctxt = NULL;
1847 }
1848
5ee2b215 1849 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1850 mvm->vif_count--;
1c2abf72 1851
999609f1 1852 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1853 iwl_mvm_mac_ctxt_remove(mvm, vif);
1854
1855out_release:
1856 iwl_mvm_mac_ctxt_release(mvm, vif);
1857 mutex_unlock(&mvm->mutex);
1858}
1859
1860static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1861{
8ca151b5
JB		 1862 return 0;
1863}
1864
e59647ea
EP		 1865struct iwl_mvm_mc_iter_data {
1866 struct iwl_mvm *mvm;
1867 int port_id;
1868};
1869
1870static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1871 struct ieee80211_vif *vif)
1872{
1873 struct iwl_mvm_mc_iter_data *data = _data;
1874 struct iwl_mvm *mvm = data->mvm;
1875 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1876 int ret, len;
1877
1878 /* if we don't have free ports, mcast frames will be dropped */
1879 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1880 return;
1881
1882 if (vif->type != NL80211_IFTYPE_STATION ||
1883 !vif->bss_conf.assoc)
1884 return;
1885
1886 cmd->port_id = data->port_id++;
1887 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1888 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1889
1c4abec0 1890 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1891 if (ret)
1892 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1893}
1894
1895static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1896{
1897 struct iwl_mvm_mc_iter_data iter_data = {
1898 .mvm = mvm,
88f2fd73
MG		 1899 };
1900
e59647ea
EP		 1901 lockdep_assert_held(&mvm->mutex);
1902
1903 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1904 return;
1905
1c4abec0 1906 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1907 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1908 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1909}
1910
e59647ea
EP		 1911static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1912 struct netdev_hw_addr_list *mc_list)
8ca151b5 1913{
e59647ea
EP		 1914 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1915 struct iwl_mcast_filter_cmd *cmd;
1916 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1917 int addr_count;
1918 bool pass_all;
e59647ea
EP		 1919 int len;
1920
f3bd58f4
MS		 1921 addr_count = netdev_hw_addr_list_count(mc_list);
1922 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1923 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1924 if (pass_all)
e59647ea 1925 addr_count = 0;
e59647ea
EP		 1926
1927 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1928 cmd = kzalloc(len, GFP_ATOMIC);
1929 if (!cmd)
1930 return 0;
1931
1932 if (pass_all) {
1933 cmd->pass_all = 1;
1934 return (u64)(unsigned long)cmd;
1935 }
1936
1937 netdev_hw_addr_list_for_each(addr, mc_list) {
1938 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1939 cmd->count, addr->addr);
1940 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1941 addr->addr, ETH_ALEN);
1942 cmd->count++;
1943 }
1944
1945 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1946}
1947
1948static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1949 unsigned int changed_flags,
1950 unsigned int *total_flags,
1951 u64 multicast)
1952{
e59647ea
EP		 1953 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1954 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1955
e59647ea 1956 mutex_lock(&mvm->mutex);
51b6b9e0 1957
e59647ea
EP		 1958 /* replace previous configuration */
1959 kfree(mvm->mcast_filter_cmd);
1960 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1961
e59647ea
EP		 1962 if (!cmd)
1963 goto out;
51b6b9e0 1964
e59647ea
EP		 1965 iwl_mvm_recalc_multicast(mvm);
1966out:
1967 mutex_unlock(&mvm->mutex);
1968 *total_flags = 0;
51b6b9e0
EG		 1969}
1970
c87163b9
EP		 1971#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1972struct iwl_bcast_iter_data {
1973 struct iwl_mvm *mvm;
1974 struct iwl_bcast_filter_cmd *cmd;
1975 u8 current_filter;
1976};
1977
1978static void
1979iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1980 const struct iwl_fw_bcast_filter *in_filter,
1981 struct iwl_fw_bcast_filter *out_filter)
1982{
1983 struct iwl_fw_bcast_filter_attr *attr;
1984 int i;
1985
1986 memcpy(out_filter, in_filter, sizeof(*out_filter));
1987
1988 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1989 attr = &out_filter->attrs[i];
1990
1991 if (!attr->mask)
1992 break;
1993
2ee8f021
EP		 1994 switch (attr->reserved1) {
1995 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1996 if (vif->bss_conf.arp_addr_cnt != 1) {
1997 attr->mask = 0;
1998 continue;
1999 }
2000
2001 attr->val = vif->bss_conf.arp_addr_list[0];
2002 break;
2003 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
2004 attr->val = *(__be32 *)&vif->addr[2];
2005 break;
2006 default:
2007 break;
2008 }
2009 attr->reserved1 = 0;
c87163b9
EP		 2010 out_filter->num_attrs++;
2011 }
2012}
2013
2014static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
2015 struct ieee80211_vif *vif)
2016{
2017 struct iwl_bcast_iter_data *data = _data;
2018 struct iwl_mvm *mvm = data->mvm;
2019 struct iwl_bcast_filter_cmd *cmd = data->cmd;
2020 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2021 struct iwl_fw_bcast_mac *bcast_mac;
2022 int i;
2023
2024 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
2025 return;
2026
2027 bcast_mac = &cmd->macs[mvmvif->id];
2028
e48393e8
IP		 2029 /*
2030 * enable filtering only for associated stations, but not for P2P
2031 * Clients
2032 */
2033 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2034 !vif->bss_conf.assoc)
c87163b9
EP		 2035 return;
2036
2037 bcast_mac->default_discard = 1;
2038
2039 /* copy all configured filters */
2040 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2041 /*
2042 * Make sure we don't exceed our filters limit.
2043 * if there is still a valid filter to be configured,
2044 * be on the safe side and just allow bcast for this mac.
2045 */
2046 if (WARN_ON_ONCE(data->current_filter >=
2047 ARRAY_SIZE(cmd->filters))) {
2048 bcast_mac->default_discard = 0;
2049 bcast_mac->attached_filters = 0;
2050 break;
2051 }
2052
2053 iwl_mvm_set_bcast_filter(vif,
2054 &mvm->bcast_filters[i],
2055 &cmd->filters[data->current_filter]);
2056
2057 /* skip current filter if it contains no attributes */
2058 if (!cmd->filters[data->current_filter].num_attrs)
2059 continue;
2060
2061 /* attach the filter to current mac */
2062 bcast_mac->attached_filters |=
2063 cpu_to_le16(BIT(data->current_filter));
2064
2065 data->current_filter++;
2066 }
2067}
2068
de06a59e
EP		 2069bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2070 struct iwl_bcast_filter_cmd *cmd)
c87163b9 2071{
c87163b9
EP		 2072 struct iwl_bcast_iter_data iter_data = {
2073 .mvm = mvm,
de06a59e 2074 .cmd = cmd,
c87163b9
EP		 2075 };
2076
3b8983b1
MS		 2077 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2078 return false;
2079
de06a59e
EP		 2080 memset(cmd, 0, sizeof(*cmd));
2081 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2082 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2083
2084#ifdef CONFIG_IWLWIFI_DEBUGFS
2085 /* use debugfs filters/macs if override is configured */
2086 if (mvm->dbgfs_bcast_filtering.override) {
2087 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2088 sizeof(cmd->filters));
2089 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2090 sizeof(cmd->macs));
2091 return true;
2092 }
2093#endif
c87163b9
EP		 2094
2095 /* if no filters are configured, do nothing */
2096 if (!mvm->bcast_filters)
de06a59e 2097 return false;
c87163b9
EP		 2098
2099 /* configure and attach these filters for each associated sta vif */
2100 ieee80211_iterate_active_interfaces(
2101 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2102 iwl_mvm_bcast_filter_iterator, &iter_data);
2103
de06a59e
EP		 2104 return true;
2105}
2106static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2107 struct ieee80211_vif *vif)
2108{
2109 struct iwl_bcast_filter_cmd cmd;
2110
2111 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2112 return 0;
2113
2114 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2115 return 0;
2116
a1022927 2117 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2118 sizeof(cmd), &cmd);
2119}
2120#else
2121static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2122 struct ieee80211_vif *vif)
2123{
2124 return 0;
2125}
2126#endif
2127
8ca151b5
JB		 2128static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2129 struct ieee80211_vif *vif,
2130 struct ieee80211_bss_conf *bss_conf,
2131 u32 changes)
2132{
2133 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2134 int ret;
2135
6e97b0d2
IP		 2136 /*
2137 * Re-calculate the tsf id, as the master-slave relations depend on the
2138 * beacon interval, which was not known when the station interface was
2139 * added.
2140 */
2141 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2142 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2143
3dfd3a97
JB		 2144 /*
2145 * If we're not associated yet, take the (new) BSSID before associating
2146 * so the firmware knows. If we're already associated, then use the old
2147 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2148 * branch for disassociation below.
2149 */
2150 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2151 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2152
2153 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2154 if (ret)
2155 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2156
3dfd3a97
JB		 2157 /* after sending it once, adopt mac80211 data */
2158 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2159 mvmvif->associated = bss_conf->assoc;
2160
8ca151b5
JB		 2161 if (changes & BSS_CHANGED_ASSOC) {
2162 if (bss_conf->assoc) {
33cef925
JB		 2163 /* clear statistics to get clean beacon counter */
2164 iwl_mvm_request_statistics(mvm, true);
2165 memset(&mvmvif->beacon_stats, 0,
2166 sizeof(mvmvif->beacon_stats));
2167
8ca151b5 2168 /* add quota for this interface */
7754ae79 2169 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2170 if (ret) {
2171 IWL_ERR(mvm, "failed to update quotas\n");
2172 return;
2173 }
016d27e1
JB		 2174
2175 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2176 &mvm->status)) {
2177 /*
2178 * If we're restarting then the firmware will
2179 * obviously have lost synchronisation with
2180 * the AP. It will attempt to synchronise by
2181 * itself, but we can make it more reliable by
2182 * scheduling a session protection time event.
2183 *
2184 * The firmware needs to receive a beacon to
2185 * catch up with synchronisation, use 110% of
2186 * the beacon interval.
2187 *
2188 * Set a large maximum delay to allow for more
2189 * than a single interface.
2190 */
2191 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2192 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2193 5 * dur, false);
016d27e1 2194 }
1f3b0ff8
LE		 2195
2196 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2197 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2198 if (vif->p2p) {
29a90a49 2199 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2200 iwl_mvm_update_smps(mvm, vif,
2201 IWL_MVM_SMPS_REQ_PROT,
2202 IEEE80211_SMPS_DYNAMIC);
2203 }
8ca151b5 2204 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2205 /*
2206 * If update fails - SF might be running in associated
2207 * mode while disassociated - which is forbidden.
2208 */
2209 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2210 "Failed to update SF upon disassociation\n");
2211
8ca151b5
JB		 2212 /* remove AP station now that the MAC is unassoc */
2213 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2214 if (ret)
2215 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2216
2217 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2218 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2219 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2220 /* remove quota for this interface */
7754ae79 2221 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2222 if (ret)
2223 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2224
2225 if (vif->p2p)
2226 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2227
2228 /* this will take the cleared BSSID from bss_conf */
2229 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2230 if (ret)
2231 IWL_ERR(mvm,
2232 "failed to update MAC %pM (clear after unassoc)\n",
2233 vif->addr);
8ca151b5 2234 }
a20fd398 2235
e59647ea 2236 iwl_mvm_recalc_multicast(mvm);
c87163b9 2237 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2238
a20fd398
AO		 2239 /* reset rssi values */
2240 mvmvif->bf_data.ave_beacon_signal = 0;
2241
8e484f0b 2242 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2243 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2244 IEEE80211_SMPS_AUTOMATIC);
989c6505 2245 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2246 /*
2247 * We received a beacon _after_ association so
2248 * remove the session protection.
2249 */
2250 iwl_mvm_remove_time_event(mvm, mvmvif,
2251 &mvmvif->time_event_data);
8ca151b5 2252 }
cc87d322
EH		 2253
2254 if (changes & BSS_CHANGED_BEACON_INFO) {
2255 iwl_mvm_sf_update(mvm, vif, false);
2256 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2257 }
2258
1bc10d3b
JB		 2259 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2260 ret = iwl_mvm_power_update_mac(mvm);
2261 if (ret)
2262 IWL_ERR(mvm, "failed to update power mode\n");
2263 }
2264
88f2fd73
MG		 2265 if (changes & BSS_CHANGED_TXPOWER) {
2266 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2267 bss_conf->txpower);
2268 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2269 }
a20fd398
AO		 2270
2271 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2272 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2273 /* reset cqm events tracking */
2274 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2275 if (mvmvif->bf_data.bf_enabled) {
2276 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2277 if (ret)
2278 IWL_ERR(mvm,
2279 "failed to update CQM thresholds\n");
2280 }
a20fd398 2281 }
2ee8f021
EP		 2282
2283 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2284 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2285 iwl_mvm_configure_bcast_filter(mvm, vif);
2286 }
8ca151b5
JB		 2287}
2288
5023d966
JB		 2289static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2290 struct ieee80211_vif *vif)
8ca151b5
JB		 2291{
2292 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2293 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2294 int ret;
2295
576eeee9
EP		 2296 /*
2297 * iwl_mvm_mac_ctxt_add() might read directly from the device
2298 * (the system time), so make sure it is available.
2299 */
2300 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2301 if (ret)
2302 return ret;
2303
8ca151b5
JB		 2304 mutex_lock(&mvm->mutex);
2305
2306 /* Send the beacon template */
2307 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2308 if (ret)
2309 goto out_unlock;
2310
6e97b0d2
IP		 2311 /*
2312 * Re-calculate the tsf id, as the master-slave relations depend on the
2313 * beacon interval, which was not known when the AP interface was added.
2314 */
2315 if (vif->type == NL80211_IFTYPE_AP)
2316 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2317
8ca151b5
JB		 2318 /* Add the mac context */
2319 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2320 if (ret)
2321 goto out_unlock;
2322
2323 /* Perform the binding */
2324 ret = iwl_mvm_binding_add_vif(mvm, vif);
2325 if (ret)
2326 goto out_remove;
2327
8ca151b5
JB		 2328 /* Send the bcast station. At this stage the TBTT and DTIM time events
2329 * are added and applied to the scheduler */
013290aa 2330 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2331 if (ret)
2332 goto out_unbind;
2333
5691e218
IP		 2334 /* must be set before quota calculations */
2335 mvmvif->ap_ibss_active = true;
2336
a11e144e 2337 /* power updated needs to be done before quotas */
999609f1 2338 iwl_mvm_power_update_mac(mvm);
a11e144e 2339
7754ae79 2340 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2341 if (ret)
a11e144e 2342 goto out_quota_failed;
8ca151b5 2343
5023d966 2344 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2345 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2346 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2347
29a90a49
EP		 2348 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2349
8e484f0b 2350 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2351
f697267f
AN		 2352 /* we don't support TDLS during DCM */
2353 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2354 iwl_mvm_teardown_tdls_peers(mvm);
2355
939e4904 2356 goto out_unlock;
8ca151b5 2357
a11e144e 2358out_quota_failed:
999609f1 2359 iwl_mvm_power_update_mac(mvm);
5691e218 2360 mvmvif->ap_ibss_active = false;
013290aa 2361 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2362out_unbind:
2363 iwl_mvm_binding_remove_vif(mvm, vif);
2364out_remove:
2365 iwl_mvm_mac_ctxt_remove(mvm, vif);
2366out_unlock:
2367 mutex_unlock(&mvm->mutex);
576eeee9 2368 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2369 return ret;
2370}
2371
5023d966
JB		 2372static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2373 struct ieee80211_vif *vif)
8ca151b5
JB		 2374{
2375 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2376 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2377
38a12b5b
JB		 2378 iwl_mvm_prepare_mac_removal(mvm, vif);
2379
8ca151b5
JB		 2380 mutex_lock(&mvm->mutex);
2381
664322fa 2382 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2383 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2384 iwl_mvm_remove_time_event(mvm, mvmvif,
2385 &mvmvif->time_event_data);
664322fa 2386 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2387 }
664322fa 2388
003e5236
AO		 2389 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2390 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2391 mvm->csa_tx_block_bcn_timeout = 0;
2392 }
2393
5023d966 2394 mvmvif->ap_ibss_active = false;
1c87bbad 2395 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2396
8e484f0b 2397 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2398
29a90a49
EP		 2399 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2400
5023d966 2401 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2402 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2403 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2404
7754ae79 2405 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2406 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2407 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2408
999609f1 2409 iwl_mvm_power_update_mac(mvm);
a11e144e 2410
8ca151b5
JB		 2411 iwl_mvm_mac_ctxt_remove(mvm, vif);
2412
2413 mutex_unlock(&mvm->mutex);
2414}
2415
5023d966
JB		 2416static void
2417iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2418 struct ieee80211_vif *vif,
2419 struct ieee80211_bss_conf *bss_conf,
2420 u32 changes)
8ca151b5 2421{
be2056fc 2422 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2423
be2056fc
IP		 2424 /* Changes will be applied when the AP/IBSS is started */
2425 if (!mvmvif->ap_ibss_active)
2426 return;
2427
863230da 2428 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2429 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2430 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2431 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2432
8ca151b5 2433 /* Need to send a new beacon template to the FW */
863230da
JB		 2434 if (changes & BSS_CHANGED_BEACON &&
2435 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2436 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2437
2438 if (changes & BSS_CHANGED_TXPOWER) {
2439 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2440 bss_conf->txpower);
2441 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2442 }
2443
8ca151b5
JB		 2444}
2445
2446static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2447 struct ieee80211_vif *vif,
2448 struct ieee80211_bss_conf *bss_conf,
2449 u32 changes)
2450{
2451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2452
576eeee9
EP		 2453 /*
2454 * iwl_mvm_bss_info_changed_station() might call
2455 * iwl_mvm_protect_session(), which reads directly from
2456 * the device (the system time), so make sure it is available.
2457 */
2458 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2459 return;
2460
8ca151b5
JB		 2461 mutex_lock(&mvm->mutex);
2462
723f02ed 2463 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2464 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2465
8ca151b5
JB		 2466 switch (vif->type) {
2467 case NL80211_IFTYPE_STATION:
2468 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2469 break;
2470 case NL80211_IFTYPE_AP:
5023d966
JB		 2471 case NL80211_IFTYPE_ADHOC:
2472 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2473 break;
2474 default:
2475 /* shouldn't happen */
2476 WARN_ON_ONCE(1);
2477 }
2478
2479 mutex_unlock(&mvm->mutex);
576eeee9 2480 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2481}
2482
2483static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2484 struct ieee80211_vif *vif,
c56ef672 2485 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2486{
2487 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2488 int ret;
2489
6749dd80
LC		 2490 if (hw_req->req.n_channels == 0 ||
2491 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2492 return -EINVAL;
2493
2494 mutex_lock(&mvm->mutex);
6749dd80 2495 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2496 mutex_unlock(&mvm->mutex);
6749dd80 2497
8ca151b5
JB		 2498 return ret;
2499}
2500
2501static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2502 struct ieee80211_vif *vif)
2503{
2504 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2505
2506 mutex_lock(&mvm->mutex);
2507
e7d3abab
LC		 2508 /* Due to a race condition, it's possible that mac80211 asks
2509 * us to stop a hw_scan when it's already stopped. This can
2510 * happen, for instance, if we stopped the scan ourselves,
2511 * called ieee80211_scan_completed() and the userspace called
2512 * cancel scan scan before ieee80211_scan_work() could run.
2513 * To handle that, simply return if the scan is not running.
2514 */
262888fc 2515 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2516 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2517
2518 mutex_unlock(&mvm->mutex);
2519}
2520
2521static void
2522iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2523 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2524 int num_frames,
2525 enum ieee80211_frame_release_type reason,
2526 bool more_data)
2527{
2528 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2529
3e56eadf 2530 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2531
3e56eadf
JB		 2532 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2533 tids, more_data, false);
2534}
2535
2536static void
2537iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2538 struct ieee80211_sta *sta, u16 tids,
2539 int num_frames,
2540 enum ieee80211_frame_release_type reason,
2541 bool more_data)
2542{
2543 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2544
2545 /* Called when we need to transmit (a) frame(s) from agg queue */
2546
2547 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2548 tids, more_data, true);
8ca151b5
JB		 2549}
2550
2551static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2552 struct ieee80211_vif *vif,
2553 enum sta_notify_cmd cmd,
2554 struct ieee80211_sta *sta)
2555{
2556 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2557 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2558 unsigned long txqs = 0, tids = 0;
3e56eadf 2559 int tid;
8ca151b5 2560
c22b0ff5
EG		 2561 spin_lock_bh(&mvmsta->lock);
2562 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2563 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2564
2565 if (tid_data->state != IWL_AGG_ON &&
2566 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2567 continue;
2568
2569 __set_bit(tid_data->txq_id, &txqs);
2570
2571 if (iwl_mvm_tid_queued(tid_data) == 0)
2572 continue;
2573
2574 __set_bit(tid, &tids);
2575 }
2576
8ca151b5
JB		 2577 switch (cmd) {
2578 case STA_NOTIFY_SLEEP:
e3d4bc8c 2579 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2580 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2581
c22b0ff5 2582 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2583 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2584
2585 if (txqs)
2586 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2587 /*
2588 * The fw updates the STA to be asleep. Tx packets on the Tx
2589 * queues to this station will not be transmitted. The fw will
2590 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2591 */
2592 break;
2593 case STA_NOTIFY_AWAKE:
881acd89 2594 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2595 break;
c22b0ff5
EG		 2596
2597 if (txqs)
2598 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2599 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2600 break;
2601 default:
2602 break;
2603 }
c22b0ff5 2604 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2605}
2606
1ddbbb0c
JB		 2607static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2608 struct ieee80211_vif *vif,
2609 struct ieee80211_sta *sta)
2610{
2611 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2612 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2613
2614 /*
2615 * This is called before mac80211 does RCU synchronisation,
2616 * so here we already invalidate our internal RCU-protected
2617 * station pointer. The rest of the code will thus no longer
2618 * be able to find the station this way, and we don't rely
2619 * on further RCU synchronisation after the sta_state()
2620 * callback deleted the station.
2621 */
2622 mutex_lock(&mvm->mutex);
2623 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2624 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2625 ERR_PTR(-ENOENT));
2626 mutex_unlock(&mvm->mutex);
2627}
2628
bd1ba664
JB		 2629static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2630 const u8 *bssid)
2631{
2632 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2633 return;
2634
2635 if (iwlwifi_mod_params.uapsd_disable) {
2636 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2637 return;
2638 }
2639
2640 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2641}
2642
8ca151b5
JB		 2643static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2644 struct ieee80211_vif *vif,
2645 struct ieee80211_sta *sta,
2646 enum ieee80211_sta_state old_state,
2647 enum ieee80211_sta_state new_state)
2648{
2649 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2650 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2651 int ret;
2652
2653 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2654 sta->addr, old_state, new_state);
2655
2656 /* this would be a mac80211 bug ... but don't crash */
2657 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2658 return -EINVAL;
2659
2660 /* if a STA is being removed, reuse its ID */
2661 flush_work(&mvm->sta_drained_wk);
2662
2663 mutex_lock(&mvm->mutex);
2664 if (old_state == IEEE80211_STA_NOTEXIST &&
2665 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2666 /*
2667 * Firmware bug - it'll crash if the beacon interval is less
2668 * than 16. We can't avoid connecting at all, so refuse the
2669 * station state change, this will cause mac80211 to abandon
2670 * attempts to connect to this AP, and eventually wpa_s will
2671 * blacklist the AP...
2672 */
2673 if (vif->type == NL80211_IFTYPE_STATION &&
2674 vif->bss_conf.beacon_int < 16) {
2675 IWL_ERR(mvm,
2676 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2677 sta->addr, vif->bss_conf.beacon_int);
2678 ret = -EINVAL;
2679 goto out_unlock;
2680 }
cf7b491d
AN		 2681
2682 if (sta->tdls &&
2683 (vif->p2p ||
fa3d07e4
AN		 2684 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2685 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2686 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2687 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2688 ret = -EBUSY;
2689 goto out_unlock;
2690 }
2691
8ca151b5 2692 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2693 if (sta->tdls && ret == 0)
2694 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2695 } else if (old_state == IEEE80211_STA_NONE &&
2696 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2697 /*
2698 * EBS may be disabled due to previous failures reported by FW.
2699 * Reset EBS status here assuming environment has been changed.
2700 */
2701 mvm->last_ebs_successful = true;
bd1ba664 2702 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2703 ret = 0;
2704 } else if (old_state == IEEE80211_STA_AUTH &&
2705 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2706 ret = iwl_mvm_update_sta(mvm, vif, sta);
2707 if (ret == 0)
2708 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2709 mvmvif->phy_ctxt->channel->band,
2710 true);
8ca151b5
JB		 2711 } else if (old_state == IEEE80211_STA_ASSOC &&
2712 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2713
2714 /* we don't support TDLS during DCM */
2715 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2716 iwl_mvm_teardown_tdls_peers(mvm);
2717
7df15b1e 2718 /* enable beacon filtering */
fa7b2e7f 2719 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2720 ret = 0;
2721 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2722 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2723 /* disable beacon filtering */
a1022927 2724 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2725 ret = 0;
2726 } else if (old_state == IEEE80211_STA_ASSOC &&
2727 new_state == IEEE80211_STA_AUTH) {
2728 ret = 0;
2729 } else if (old_state == IEEE80211_STA_AUTH &&
2730 new_state == IEEE80211_STA_NONE) {
2731 ret = 0;
2732 } else if (old_state == IEEE80211_STA_NONE &&
2733 new_state == IEEE80211_STA_NOTEXIST) {
2734 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2735 if (sta->tdls)
2736 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2737 } else {
2738 ret = -EIO;
2739 }
48bc1307 2740 out_unlock:
8ca151b5
JB		 2741 mutex_unlock(&mvm->mutex);
2742
9c126cd6
LK		 2743 if (sta->tdls && ret == 0) {
2744 if (old_state == IEEE80211_STA_NOTEXIST &&
2745 new_state == IEEE80211_STA_NONE)
2746 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2747 else if (old_state == IEEE80211_STA_NONE &&
2748 new_state == IEEE80211_STA_NOTEXIST)
2749 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2750 }
2751
8ca151b5
JB		 2752 return ret;
2753}
2754
2755static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2756{
2757 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2758
2759 mvm->rts_threshold = value;
2760
2761 return 0;
2762}
2763
1f3b0ff8
LE		 2764static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2765 struct ieee80211_vif *vif,
2766 struct ieee80211_sta *sta, u32 changed)
2767{
2768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2769
2770 if (vif->type == NL80211_IFTYPE_STATION &&
2771 changed & IEEE80211_RC_NSS_CHANGED)
2772 iwl_mvm_sf_update(mvm, vif, false);
2773}
2774
8ca151b5
JB		 2775static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2776 struct ieee80211_vif *vif, u16 ac,
2777 const struct ieee80211_tx_queue_params *params)
2778{
2779 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2780 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2781
2782 mvmvif->queue_params[ac] = *params;
2783
2784 /*
2785 * No need to update right away, we'll get BSS_CHANGED_QOS
2786 * The exception is P2P_DEVICE interface which needs immediate update.
2787 */
2788 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2789 int ret;
2790
2791 mutex_lock(&mvm->mutex);
3dfd3a97 2792 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2793 mutex_unlock(&mvm->mutex);
2794 return ret;
2795 }
2796 return 0;
2797}
2798
2799static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2800 struct ieee80211_vif *vif)
2801{
2802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2803 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2804 200 + vif->bss_conf.beacon_int);
2805 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2806 100 + vif->bss_conf.beacon_int);
2807
2808 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2809 return;
2810
576eeee9
EP		 2811 /*
2812 * iwl_mvm_protect_session() reads directly from the device
2813 * (the system time), so make sure it is available.
2814 */
2815 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2816 return;
2817
8ca151b5
JB		 2818 mutex_lock(&mvm->mutex);
2819 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2820 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2821 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2822
2823 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2824}
2825
35a000b7
DS		 2826static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2827 struct ieee80211_vif *vif,
2828 struct cfg80211_sched_scan_request *req,
633e2713 2829 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2830{
2831 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
35a000b7 2832
35a000b7 2833 int ret;
4660dfbb 2834
35a000b7
DS		 2835 mutex_lock(&mvm->mutex);
2836
1f940386 2837 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2838 ret = -EBUSY;
2839 goto out;
2840 }
2841
19945dfb 2842 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2843
35a000b7
DS		 2844out:
2845 mutex_unlock(&mvm->mutex);
2846 return ret;
2847}
2848
37e3308c
JB		 2849static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2850 struct ieee80211_vif *vif)
35a000b7
DS		 2851{
2852 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2853 int ret;
35a000b7
DS		 2854
2855 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2856
2857 /* Due to a race condition, it's possible that mac80211 asks
2858 * us to stop a sched_scan when it's already stopped. This
2859 * can happen, for instance, if we stopped the scan ourselves,
2860 * called ieee80211_sched_scan_stopped() and the userspace called
2861 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2862 * could run. To handle this, simply return if the scan is
2863 * not running.
2864 */
262888fc 2865 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2866 mutex_unlock(&mvm->mutex);
2867 return 0;
2868 }
2869
c7d42480 2870 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2871 mutex_unlock(&mvm->mutex);
33ea27f6 2872 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2873
33ea27f6 2874 return ret;
35a000b7
DS		 2875}
2876
8ca151b5
JB		 2877static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2878 enum set_key_cmd cmd,
2879 struct ieee80211_vif *vif,
2880 struct ieee80211_sta *sta,
2881 struct ieee80211_key_conf *key)
2882{
2883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2884 int ret;
2885
2886 if (iwlwifi_mod_params.sw_crypto) {
2887 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2888 return -EOPNOTSUPP;
2889 }
2890
2891 switch (key->cipher) {
2892 case WLAN_CIPHER_SUITE_TKIP:
2893 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
8ca151b5
JB		 2894 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2895 break;
ca8c0f4b
JB		 2896 case WLAN_CIPHER_SUITE_CCMP:
2897 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2898 break;
8ca151b5 2899 case WLAN_CIPHER_SUITE_AES_CMAC:
30686bf7 2900 WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
8ca151b5
JB		 2901 break;
2902 case WLAN_CIPHER_SUITE_WEP40:
2903 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2904 /* For non-client mode, only use WEP keys for TX as we probably
2905 * don't have a station yet anyway and would then have to keep
2906 * track of the keys, linking them to each of the clients/peers
2907 * as they appear. For now, don't do that, for performance WEP
2908 * offload doesn't really matter much, but we need it for some
2909 * other offload features in client mode.
8ca151b5 2910 */
ba3943b0
JB		 2911 if (vif->type != NL80211_IFTYPE_STATION)
2912 return 0;
2913 break;
8ca151b5 2914 default:
e36e5433
MS		 2915 /* currently FW supports only one optional cipher scheme */
2916 if (hw->n_cipher_schemes &&
2917 hw->cipher_schemes->cipher == key->cipher)
2918 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2919 else
2920 return -EOPNOTSUPP;
8ca151b5
JB		 2921 }
2922
2923 mutex_lock(&mvm->mutex);
2924
2925 switch (cmd) {
2926 case SET_KEY:
5023d966
JB		 2927 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2928 vif->type == NL80211_IFTYPE_AP) && !sta) {
2929 /*
2930 * GTK on AP interface is a TX-only key, return 0;
2931 * on IBSS they're per-station and because we're lazy
2932 * we don't support them for RX, so do the same.
2933 */
6caffd4f
JB		 2934 ret = 0;
2935 key->hw_key_idx = STA_KEY_IDX_INVALID;
2936 break;
2937 }
2938
b546dcd6
JB		 2939 /* During FW restart, in order to restore the state as it was,
2940 * don't try to reprogram keys we previously failed for.
2941 */
2942 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2943 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2944 IWL_DEBUG_MAC80211(mvm,
2945 "skip invalid idx key programming during restart\n");
2946 ret = 0;
2947 break;
2948 }
2949
8ca151b5 2950 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2951 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2952 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2953 &mvm->status));
8ca151b5
JB		 2954 if (ret) {
2955 IWL_WARN(mvm, "set key failed\n");
2956 /*
2957 * can't add key for RX, but we don't need it
2958 * in the device for TX so still return 0
2959 */
6caffd4f 2960 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2961 ret = 0;
2962 }
2963
2964 break;
2965 case DISABLE_KEY:
6caffd4f
JB		 2966 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2967 ret = 0;
2968 break;
2969 }
2970
8ca151b5
JB		 2971 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2972 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2973 break;
2974 default:
2975 ret = -EINVAL;
2976 }
2977
2978 mutex_unlock(&mvm->mutex);
2979 return ret;
2980}
2981
2982static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2983 struct ieee80211_vif *vif,
2984 struct ieee80211_key_conf *keyconf,
2985 struct ieee80211_sta *sta,
2986 u32 iv32, u16 *phase1key)
2987{
2988 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2989
5023d966
JB		 2990 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2991 return;
2992
8ca151b5
JB		 2993 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2994}
2995
2996
b112889c
AM		 2997static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2998 struct iwl_rx_packet *pkt, void *data)
2999{
3000 struct iwl_mvm *mvm =
3001 container_of(notif_wait, struct iwl_mvm, notif_wait);
3002 struct iwl_hs20_roc_res *resp;
3003 int resp_len = iwl_rx_packet_payload_len(pkt);
3004 struct iwl_mvm_time_event_data *te_data = data;
3005
3006 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3007 return true;
3008
3009 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3010 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3011 return true;
3012 }
3013
3014 resp = (void *)pkt->data;
3015
3016 IWL_DEBUG_TE(mvm,
3017 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3018 resp->status, resp->event_unique_id);
3019
3020 te_data->uid = le32_to_cpu(resp->event_unique_id);
3021 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3022 te_data->uid);
3023
3024 spin_lock_bh(&mvm->time_event_lock);
3025 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3026 spin_unlock_bh(&mvm->time_event_lock);
3027
3028 return true;
3029}
3030
35d3dab5 3031#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3032static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3033 struct ieee80211_channel *channel,
3034 struct ieee80211_vif *vif,
3035 int duration)
3036{
3037 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3038 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3039 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
6eb031d2 3040 static const u16 time_event_response[] = { HOT_SPOT_CMD };
b112889c
AM		 3041 struct iwl_notification_wait wait_time_event;
3042 struct iwl_hs20_roc_req aux_roc_req = {
3043 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3044 .id_and_color =
3045 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3046 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3047 /* Set the channel info data */
3048 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3049 PHY_BAND_24 : PHY_BAND_5,
3050 .channel_info.channel = channel->hw_value,
3051 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3052 /* Set the time and duration */
3053 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3054 .apply_time_max_delay =
3055 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3056 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3057 };
3058
3059 /* Set the node address */
3060 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3061
a6cc5163
MG		 3062 lockdep_assert_held(&mvm->mutex);
3063
3064 spin_lock_bh(&mvm->time_event_lock);
3065
3066 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3067 spin_unlock_bh(&mvm->time_event_lock);
3068 return -EIO;
3069 }
3070
b112889c
AM		 3071 te_data->vif = vif;
3072 te_data->duration = duration;
3073 te_data->id = HOT_SPOT_CMD;
3074
b112889c
AM		 3075 spin_unlock_bh(&mvm->time_event_lock);
3076
3077 /*
3078 * Use a notification wait, which really just processes the
3079 * command response and doesn't wait for anything, in order
3080 * to be able to process the response and get the UID inside
3081 * the RX path. Using CMD_WANT_SKB doesn't work because it
3082 * stores the buffer and then wakes up this thread, by which
3083 * time another notification (that the time event started)
3084 * might already be processed unsuccessfully.
3085 */
3086 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3087 time_event_response,
3088 ARRAY_SIZE(time_event_response),
3089 iwl_mvm_rx_aux_roc, te_data);
3090
3091 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3092 &aux_roc_req);
3093
3094 if (res) {
3095 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3096 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3097 goto out_clear_te;
3098 }
3099
3100 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3101 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3102 /* should never fail */
3103 WARN_ON_ONCE(res);
3104
3105 if (res) {
3106 out_clear_te:
3107 spin_lock_bh(&mvm->time_event_lock);
3108 iwl_mvm_te_clear_data(mvm, te_data);
3109 spin_unlock_bh(&mvm->time_event_lock);
3110 }
3111
3112 return res;
3113}
3114
8ca151b5
JB		 3115static int iwl_mvm_roc(struct ieee80211_hw *hw,
3116 struct ieee80211_vif *vif,
3117 struct ieee80211_channel *channel,
d339d5ca
IP		 3118 int duration,
3119 enum ieee80211_roc_type type)
8ca151b5
JB		 3120{
3121 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3122 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3123 struct cfg80211_chan_def chandef;
31d385ae
IP		 3124 struct iwl_mvm_phy_ctxt *phy_ctxt;
3125 int ret, i;
3126
3127 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3128 duration, type);
8ca151b5 3129
6ed13164
MG		 3130 flush_work(&mvm->roc_done_wk);
3131
a6cc5163
MG		 3132 mutex_lock(&mvm->mutex);
3133
b112889c
AM		 3134 switch (vif->type) {
3135 case NL80211_IFTYPE_STATION:
859d914c
JB		 3136 if (fw_has_capa(&mvm->fw->ucode_capa,
3137 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3138 /* Use aux roc framework (HS20) */
3139 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3140 vif, duration);
3141 goto out_unlock;
3142 }
3143 IWL_ERR(mvm, "hotspot not supported\n");
3144 ret = -EINVAL;
a6cc5163 3145 goto out_unlock;
b112889c
AM		 3146 case NL80211_IFTYPE_P2P_DEVICE:
3147 /* handle below */
3148 break;
3149 default:
3150 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3151 ret = -EINVAL;
3152 goto out_unlock;
8ca151b5
JB		 3153 }
3154
31d385ae
IP		 3155 for (i = 0; i < NUM_PHY_CTX; i++) {
3156 phy_ctxt = &mvm->phy_ctxts[i];
3157 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3158 continue;
3159
3160 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3161 /*
3162 * Unbind the P2P_DEVICE from the current PHY context,
3163 * and if the PHY context is not used remove it.
3164 */
3165 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3166 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3167 goto out_unlock;
3168
3169 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3170
3171 /* Bind the P2P_DEVICE to the current PHY Context */
3172 mvmvif->phy_ctxt = phy_ctxt;
3173
3174 ret = iwl_mvm_binding_add_vif(mvm, vif);
3175 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3176 goto out_unlock;
3177
3178 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3179 goto schedule_time_event;
3180 }
3181 }
3182
3183 /* Need to update the PHY context only if the ROC channel changed */
3184 if (channel == mvmvif->phy_ctxt->channel)
3185 goto schedule_time_event;
3186
8ca151b5 3187 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3188
31d385ae
IP		 3189 /*
3190 * Change the PHY context configuration as it is currently referenced
3191 * only by the P2P Device MAC
3192 */
3193 if (mvmvif->phy_ctxt->ref == 1) {
3194 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3195 &chandef, 1, 1);
3196 if (ret)
3197 goto out_unlock;
3198 } else {
3199 /*
3200 * The PHY context is shared with other MACs. Need to remove the
3201 * P2P Device from the binding, allocate an new PHY context and
3202 * create a new binding
3203 */
3204 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3205 if (!phy_ctxt) {
3206 ret = -ENOSPC;
3207 goto out_unlock;
3208 }
3209
3210 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3211 1, 1);
3212 if (ret) {
3213 IWL_ERR(mvm, "Failed to change PHY context\n");
3214 goto out_unlock;
3215 }
3216
3217 /* Unbind the P2P_DEVICE from the current PHY context */
3218 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3219 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3220 goto out_unlock;
3221
3222 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3223
3224 /* Bind the P2P_DEVICE to the new allocated PHY context */
3225 mvmvif->phy_ctxt = phy_ctxt;
3226
3227 ret = iwl_mvm_binding_add_vif(mvm, vif);
3228 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3229 goto out_unlock;
3230
3231 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3232 }
3233
3234schedule_time_event:
8ca151b5 3235 /* Schedule the time events */
e635c797 3236 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3237
31d385ae 3238out_unlock:
8ca151b5
JB		 3239 mutex_unlock(&mvm->mutex);
3240 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3241 return ret;
3242}
3243
3244static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3245{
3246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3247
3248 IWL_DEBUG_MAC80211(mvm, "enter\n");
3249
3250 mutex_lock(&mvm->mutex);
bf5da87f 3251 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3252 mutex_unlock(&mvm->mutex);
3253
3254 IWL_DEBUG_MAC80211(mvm, "leave\n");
3255 return 0;
3256}
3257
b08c1d97
LC		 3258static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3259 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3260{
fe0f2de3
IP		 3261 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3262 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3263 int ret;
3264
b08c1d97
LC		 3265 lockdep_assert_held(&mvm->mutex);
3266
53a9d61e 3267 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3268
fe0f2de3
IP		 3269 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3270 if (!phy_ctxt) {
3271 ret = -ENOSPC;
3272 goto out;
3273 }
8ca151b5 3274
dcbc3e1a 3275 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3276 ctx->rx_chains_static,
3277 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3278 if (ret) {
3279 IWL_ERR(mvm, "Failed to add PHY context\n");
3280 goto out;
3281 }
3282
53a9d61e 3283 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3284 *phy_ctxt_id = phy_ctxt->id;
3285out:
b08c1d97
LC		 3286 return ret;
3287}
3288
3289static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3290 struct ieee80211_chanctx_conf *ctx)
3291{
3292 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3293 int ret;
3294
3295 mutex_lock(&mvm->mutex);
3296 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3297 mutex_unlock(&mvm->mutex);
b08c1d97 3298
8ca151b5
JB		 3299 return ret;
3300}
3301
b08c1d97
LC		 3302static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3303 struct ieee80211_chanctx_conf *ctx)
3304{
3305 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3306 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3307
3308 lockdep_assert_held(&mvm->mutex);
3309
3310 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3311}
3312
8ca151b5
JB		 3313static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3314 struct ieee80211_chanctx_conf *ctx)
3315{
3316 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3317
3318 mutex_lock(&mvm->mutex);
b08c1d97 3319 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3320 mutex_unlock(&mvm->mutex);
3321}
3322
3323static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3324 struct ieee80211_chanctx_conf *ctx,
3325 u32 changed)
3326{
3327 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3328 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3329 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3330
31d385ae
IP		 3331 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3332 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3333 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3334 IEEE80211_CHANCTX_CHANGE_RADAR |
3335 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3336 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3337 phy_ctxt->ref, changed))
3338 return;
3339
8ca151b5 3340 mutex_lock(&mvm->mutex);
4d66449a 3341 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3342 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3343 ctx->rx_chains_static,
3344 ctx->rx_chains_dynamic);
3345 mutex_unlock(&mvm->mutex);
3346}
3347
b08c1d97
LC		 3348static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3349 struct ieee80211_vif *vif,
f0c97783
LC		 3350 struct ieee80211_chanctx_conf *ctx,
3351 bool switching_chanctx)
8ca151b5 3352{
fe0f2de3
IP		 3353 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3354 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3355 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3356 int ret;
3357
b08c1d97 3358 lockdep_assert_held(&mvm->mutex);
8ca151b5 3359
fe0f2de3 3360 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3361
3362 switch (vif->type) {
3363 case NL80211_IFTYPE_AP:
4741dd04
LC		 3364 /* only needed if we're switching chanctx (i.e. during CSA) */
3365 if (switching_chanctx) {
bd3398e2
AO		 3366 mvmvif->ap_ibss_active = true;
3367 break;
3368 }
5023d966 3369 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3370 /*
3371 * The AP binding flow is handled as part of the start_ap flow
5023d966 3372 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3373 */
3374 ret = 0;
b08c1d97 3375 goto out;
8ca151b5 3376 case NL80211_IFTYPE_STATION:
2533edce 3377 break;
8ca151b5 3378 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3379 /* always disable PS when a monitor interface is active */
3380 mvmvif->ps_disabled = true;
8ca151b5
JB		 3381 break;
3382 default:
3383 ret = -EINVAL;
b08c1d97 3384 goto out;
8ca151b5
JB		 3385 }
3386
3387 ret = iwl_mvm_binding_add_vif(mvm, vif);
3388 if (ret)
b08c1d97 3389 goto out;
8ca151b5
JB		 3390
3391 /*
92d85562
AB		 3392 * Power state must be updated before quotas,
3393 * otherwise fw will complain.
3394 */
999609f1 3395 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3396
3397 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3398 * interfaces. For the other types, the bss_info changed flow
3399 * will handle quota settings.
3400 */
3401 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3402 mvmvif->monitor_active = true;
7754ae79 3403 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3404 if (ret)
3405 goto out_remove_binding;
3406 }
3407
bd3398e2 3408 /* Handle binding during CSA */
a57c688d 3409 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3410 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3411 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3412 }
3413
4741dd04 3414 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3415 u32 duration = 2 * vif->bss_conf.beacon_int;
3416
3417 /* iwl_mvm_protect_session() reads directly from the
3418 * device (the system time), so make sure it is
3419 * available.
3420 */
3421 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3422 if (ret)
3423 goto out_remove_binding;
3424
3425 /* Protect the session to make sure we hear the first
3426 * beacon on the new channel.
3427 */
3428 iwl_mvm_protect_session(mvm, vif, duration, duration,
3429 vif->bss_conf.beacon_int / 2,
3430 true);
3431
3432 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3433
7754ae79 3434 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3435 }
3436
b08c1d97 3437 goto out;
8ca151b5 3438
b08c1d97 3439out_remove_binding:
8ca151b5 3440 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3441 iwl_mvm_power_update_mac(mvm);
b08c1d97 3442out:
8ca151b5
JB		 3443 if (ret)
3444 mvmvif->phy_ctxt = NULL;
3445 return ret;
3446}
b08c1d97
LC		 3447static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3448 struct ieee80211_vif *vif,
3449 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3450{
3451 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3452 int ret;
8ca151b5
JB		 3453
3454 mutex_lock(&mvm->mutex);
f0c97783 3455 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3456 mutex_unlock(&mvm->mutex);
3457
3458 return ret;
3459}
3460
3461static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3462 struct ieee80211_vif *vif,
f0c97783
LC		 3463 struct ieee80211_chanctx_conf *ctx,
3464 bool switching_chanctx)
b08c1d97
LC		 3465{
3466 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3467 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3468
3469 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3470
3471 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3472
8ca151b5 3473 switch (vif->type) {
5023d966 3474 case NL80211_IFTYPE_ADHOC:
b08c1d97 3475 goto out;
8ca151b5 3476 case NL80211_IFTYPE_MONITOR:
1e1391ca 3477 mvmvif->monitor_active = false;
2533edce 3478 mvmvif->ps_disabled = false;
8ca151b5 3479 break;
bd3398e2
AO		 3480 case NL80211_IFTYPE_AP:
3481 /* This part is triggered only during CSA */
4741dd04 3482 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3483 goto out;
bd3398e2 3484
7ef0aab6
AO		 3485 mvmvif->csa_countdown = false;
3486
003e5236
AO		 3487 /* Set CS bit on all the stations */
3488 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3489
3490 /* Save blocked iface, the timeout is set on the next beacon */
3491 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3492
bd3398e2 3493 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3494 break;
3495 case NL80211_IFTYPE_STATION:
3496 if (!switching_chanctx)
3497 break;
3498
3499 disabled_vif = vif;
3500
3dfd3a97 3501 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3502 break;
8ca151b5
JB		 3503 default:
3504 break;
3505 }
3506
7754ae79 3507 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3508 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3509
b08c1d97 3510out:
a11e144e 3511 mvmvif->phy_ctxt = NULL;
999609f1 3512 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3513}
3514
3515static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3516 struct ieee80211_vif *vif,
3517 struct ieee80211_chanctx_conf *ctx)
3518{
3519 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3520
3521 mutex_lock(&mvm->mutex);
f0c97783 3522 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3523 mutex_unlock(&mvm->mutex);
3524}
3525
50cc9574
LC		 3526static int
3527iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3528 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3529{
b08c1d97
LC		 3530 int ret;
3531
b08c1d97 3532 mutex_lock(&mvm->mutex);
f0c97783 3533 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3534 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3535
3536 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3537 if (ret) {
3538 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3539 goto out_reassign;
3540 }
3541
f0c97783
LC		 3542 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3543 true);
b08c1d97
LC		 3544 if (ret) {
3545 IWL_ERR(mvm,
3546 "failed to assign new_ctx during channel switch\n");
3547 goto out_remove;
3548 }
3549
f697267f
AN		 3550 /* we don't support TDLS during DCM - can be caused by channel switch */
3551 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3552 iwl_mvm_teardown_tdls_peers(mvm);
3553
b08c1d97
LC		 3554 goto out;
3555
3556out_remove:
3557 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3558
3559out_reassign:
6fd1fb63 3560 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3561 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3562 goto out_restart;
3563 }
3564
6fd1fb63
LC		 3565 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3566 true)) {
b08c1d97
LC		 3567 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3568 goto out_restart;
3569 }
3570
3571 goto out;
3572
3573out_restart:
3574 /* things keep failing, better restart the hw */
3575 iwl_mvm_nic_restart(mvm, false);
3576
3577out:
3578 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3579
3580 return ret;
3581}
3582
48a256e8
LC		 3583static int
3584iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3585 struct ieee80211_vif_chanctx_switch *vifs)
3586{
3587 int ret;
3588
3589 mutex_lock(&mvm->mutex);
3590 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3591
3592 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3593 true);
3594 if (ret) {
3595 IWL_ERR(mvm,
3596 "failed to assign new_ctx during channel switch\n");
3597 goto out_reassign;
3598 }
3599
3600 goto out;
3601
3602out_reassign:
3603 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3604 true)) {
3605 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3606 goto out_restart;
3607 }
3608
3609 goto out;
3610
3611out_restart:
3612 /* things keep failing, better restart the hw */
3613 iwl_mvm_nic_restart(mvm, false);
3614
3615out:
3616 mutex_unlock(&mvm->mutex);
3617
3618 return ret;
3619}
3620
50cc9574
LC		 3621static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3622 struct ieee80211_vif_chanctx_switch *vifs,
3623 int n_vifs,
3624 enum ieee80211_chanctx_switch_mode mode)
3625{
3626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3627 int ret;
3628
3629 /* we only support a single-vif right now */
3630 if (n_vifs > 1)
3631 return -EOPNOTSUPP;
3632
3633 switch (mode) {
3634 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3635 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3636 break;
3637 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3638 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3639 break;
3640 default:
3641 ret = -EOPNOTSUPP;
3642 break;
3643 }
3644
b08c1d97
LC		 3645 return ret;
3646}
3647
8ca151b5
JB		 3648static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3649 struct ieee80211_sta *sta,
3650 bool set)
3651{
3652 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3653 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3654
3655 if (!mvm_sta || !mvm_sta->vif) {
3656 IWL_ERR(mvm, "Station is not associated to a vif\n");
3657 return -EINVAL;
3658 }
3659
3660 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3661}
3662
507cadf2
DS		 3663#ifdef CONFIG_NL80211_TESTMODE
3664static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3665 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3666 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3667 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3668};
3669
3670static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3671 struct ieee80211_vif *vif,
3672 void *data, int len)
3673{
3674 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3675 int err;
3676 u32 noa_duration;
3677
3678 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3679 if (err)
3680 return err;
3681
3682 if (!tb[IWL_MVM_TM_ATTR_CMD])
3683 return -EINVAL;
3684
3685 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3686 case IWL_MVM_TM_CMD_SET_NOA:
3687 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3688 !vif->bss_conf.enable_beacon ||
3689 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3690 return -EINVAL;
3691
3692 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3693 if (noa_duration >= vif->bss_conf.beacon_int)
3694 return -EINVAL;
3695
3696 mvm->noa_duration = noa_duration;
3697 mvm->noa_vif = vif;
3698
7754ae79 3699 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3700 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3701 /* must be associated client vif - ignore authorized */
3702 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3703 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3704 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3705 return -EINVAL;
3706
3707 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3708 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3709 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3710 }
3711
3712 return -EOPNOTSUPP;
3713}
3714
3715static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3716 struct ieee80211_vif *vif,
3717 void *data, int len)
3718{
3719 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3720 int err;
3721
3722 mutex_lock(&mvm->mutex);
3723 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3724 mutex_unlock(&mvm->mutex);
3725
3726 return err;
3727}
3728#endif
3729
622e3f9b
LC		 3730static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3731 struct ieee80211_vif *vif,
3732 struct ieee80211_channel_switch *chsw)
3733{
3734 /* By implementing this operation, we prevent mac80211 from
3735 * starting its own channel switch timer, so that we can call
3736 * ieee80211_chswitch_done() ourselves at the right time
3737 * (which is when the absence time event starts).
3738 */
3739
3740 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3741 "dummy channel switch op\n");
3742}
3743
f028905c
LC		 3744static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3745 struct ieee80211_vif *vif,
3746 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3747{
3748 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3749 struct ieee80211_vif *csa_vif;
f6c34820 3750 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3751 u32 apply_time;
f028905c 3752 int ret;
bd3398e2
AO		 3753
3754 mutex_lock(&mvm->mutex);
664322fa 3755
81d62d5a
JB		 3756 mvmvif->csa_failed = false;
3757
6b20d774 3758 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3759 chsw->chandef.center_freq1);
6b20d774 3760
21023b1e 3761 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3762
6b20d774
LC		 3763 switch (vif->type) {
3764 case NL80211_IFTYPE_AP:
3765 csa_vif =
3766 rcu_dereference_protected(mvm->csa_vif,
3767 lockdep_is_held(&mvm->mutex));
3768 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3769 "Another CSA is already in progress")) {
3770 ret = -EBUSY;
3771 goto out_unlock;
3772 }
3773
3774 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3775
7ef0aab6
AO		 3776 if (WARN_ONCE(mvmvif->csa_countdown,
3777 "Previous CSA countdown didn't complete")) {
3778 ret = -EBUSY;
3779 goto out_unlock;
3780 }
3781
6b20d774 3782 break;
dc88b4ba 3783 case NL80211_IFTYPE_STATION:
4500e133
LC		 3784 /* Schedule the time event to a bit before beacon 1,
3785 * to make sure we're in the new channel when the
3786 * GO/AP arrives.
3787 */
3788 apply_time = chsw->device_timestamp +
3789 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3790 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3791
3792 if (chsw->block_tx)
3793 iwl_mvm_csa_client_absent(mvm, vif);
3794
4500e133 3795 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3796 apply_time);
c6e0a3e0
LC		 3797 if (mvmvif->bf_data.bf_enabled) {
3798 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3799 if (ret)
3800 goto out_unlock;
3801 }
3802
dc88b4ba 3803 break;
6b20d774
LC		 3804 default:
3805 break;
3806 }
bd3398e2 3807
f6c34820
LC		 3808 mvmvif->ps_disabled = true;
3809
3810 ret = iwl_mvm_power_update_ps(mvm);
3811 if (ret)
3812 goto out_unlock;
f028905c 3813
e198f5e7
AN		 3814 /* we won't be on this channel any longer */
3815 iwl_mvm_teardown_tdls_peers(mvm);
3816
bd3398e2
AO		 3817out_unlock:
3818 mutex_unlock(&mvm->mutex);
f028905c
LC		 3819
3820 return ret;
bd3398e2
AO		 3821}
3822
f6c34820
LC		 3823static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3824 struct ieee80211_vif *vif)
3825{
3826 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3827 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3828 int ret;
3829
3830 mutex_lock(&mvm->mutex);
3831
81d62d5a
JB		 3832 if (mvmvif->csa_failed) {
3833 mvmvif->csa_failed = false;
3834 ret = -EIO;
3835 goto out_unlock;
3836 }
3837
a57c688d
LC		 3838 if (vif->type == NL80211_IFTYPE_STATION) {
3839 struct iwl_mvm_sta *mvmsta;
3840
3841 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3842 mvmvif->ap_sta_id);
3843
3844 if (WARN_ON(!mvmsta)) {
3845 ret = -EIO;
3846 goto out_unlock;
3847 }
3848
3849 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3850
3851 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3852
3853 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3854 if (ret)
3855 goto out_unlock;
686e7fe1
LC		 3856
3857 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3858 }
3859
f6c34820
LC		 3860 mvmvif->ps_disabled = false;
3861
3862 ret = iwl_mvm_power_update_ps(mvm);
3863
a57c688d 3864out_unlock:
f6c34820
LC		 3865 mutex_unlock(&mvm->mutex);
3866
3867 return ret;
3868}
3869
c5b0e7c0
EG		 3870static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3871 struct ieee80211_vif *vif, u32 queues, bool drop)
3872{
3873 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3874 struct iwl_mvm_vif *mvmvif;
3875 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3876 struct ieee80211_sta *sta;
3877 int i;
3878 u32 msk = 0;
c5b0e7c0
EG		 3879
3880 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3881 return;
3882
3883 mutex_lock(&mvm->mutex);
3884 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3885
a0f6bf2a
AN		 3886 /* flush the AP-station and all TDLS peers */
3887 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3888 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3889 lockdep_is_held(&mvm->mutex));
3890 if (IS_ERR_OR_NULL(sta))
3891 continue;
3892
3893 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3894 if (mvmsta->vif != vif)
3895 continue;
3896
3897 /* make sure only TDLS peers or the AP are flushed */
3898 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3899
3900 msk |= mvmsta->tfd_queue_msk;
480acbce 3901 }
c5b0e7c0 3902
6d440b25
EG		 3903 if (drop) {
3904 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3905 IWL_ERR(mvm, "flush request fail\n");
3906 mutex_unlock(&mvm->mutex);
3907 } else {
3908 mutex_unlock(&mvm->mutex);
4e6c48e0 3909
6d440b25
EG		 3910 /* this can take a while, and we may need/want other operations
3911 * to succeed while doing this, so do it without the mutex held
3912 */
3913 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3914 }
c5b0e7c0
EG		 3915}
3916
91a8bcde
JB		 3917static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3918 struct survey_info *survey)
3919{
3920 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3921 int ret;
3922
3923 memset(survey, 0, sizeof(*survey));
3924
3925 /* only support global statistics right now */
3926 if (idx != 0)
3927 return -ENOENT;
3928
859d914c 3929 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3930 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3931 return -ENOENT;
3932
3933 mutex_lock(&mvm->mutex);
3934
3935 if (mvm->ucode_loaded) {
33cef925 3936 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3937 if (ret)
3938 goto out;
3939 }
3940
3941 survey->filled = SURVEY_INFO_TIME |
3942 SURVEY_INFO_TIME_RX |
3943 SURVEY_INFO_TIME_TX |
3944 SURVEY_INFO_TIME_SCAN;
3945 survey->time = mvm->accu_radio_stats.on_time_rf +
3946 mvm->radio_stats.on_time_rf;
3947 do_div(survey->time, USEC_PER_MSEC);
3948
3949 survey->time_rx = mvm->accu_radio_stats.rx_time +
3950 mvm->radio_stats.rx_time;
3951 do_div(survey->time_rx, USEC_PER_MSEC);
3952
3953 survey->time_tx = mvm->accu_radio_stats.tx_time +
3954 mvm->radio_stats.tx_time;
3955 do_div(survey->time_tx, USEC_PER_MSEC);
3956
3957 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3958 mvm->radio_stats.on_time_scan;
3959 do_div(survey->time_scan, USEC_PER_MSEC);
3960
10a7c028 3961 ret = 0;
91a8bcde
JB		 3962 out:
3963 mutex_unlock(&mvm->mutex);
3964 return ret;
3965}
3966
33cef925
JB		 3967static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3968 struct ieee80211_vif *vif,
3969 struct ieee80211_sta *sta,
3970 struct station_info *sinfo)
3971{
3972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3973 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3974 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3975
859d914c
JB		 3976 if (fw_has_capa(&mvm->fw->ucode_capa,
3977 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3978 return;
3979
3980 /* if beacon filtering isn't on mac80211 does it anyway */
3981 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3982 return;
3983
3984 if (!vif->bss_conf.assoc)
3985 return;
3986
3987 mutex_lock(&mvm->mutex);
3988
3989 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3990 goto unlock;
3991
3992 if (iwl_mvm_request_statistics(mvm, false))
3993 goto unlock;
3994
3995 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3996 mvmvif->beacon_stats.accu_num_beacons;
3997 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3998 if (mvmvif->beacon_stats.avg_signal) {
3999 /* firmware only reports a value after RXing a few beacons */
4000 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
4001 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
4002 }
4003 unlock:
4004 mutex_unlock(&mvm->mutex);
4005}
4006
4203263d
EG		 4007static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
4008 struct ieee80211_vif *vif,
4009 const struct ieee80211_event *event)
d42f5350 4010{
5d4f929e 4011#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 4012 do { \
4013 if ((_cnt) && --(_cnt)) \
4014 break; \
5d4f929e 4015 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 4016 } while (0)
4017
d42f5350
EG		 4018 struct iwl_fw_dbg_trigger_tlv *trig;
4019 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 4020
4021 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
4022 return;
4023
d42f5350
EG		 4024 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
4025 trig_mlme = (void *)trig->data;
4026 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4027 return;
4028
d42f5350
EG		 4029 if (event->u.mlme.data == ASSOC_EVENT) {
4030 if (event->u.mlme.status == MLME_DENIED)
4031 CHECK_MLME_TRIGGER(mvm, trig, buf,
4032 trig_mlme->stop_assoc_denied,
4033 "DENIED ASSOC: reason %d",
4034 event->u.mlme.reason);
4035 else if (event->u.mlme.status == MLME_TIMEOUT)
4036 CHECK_MLME_TRIGGER(mvm, trig, buf,
4037 trig_mlme->stop_assoc_timeout,
4038 "ASSOC TIMEOUT");
4039 } else if (event->u.mlme.data == AUTH_EVENT) {
4040 if (event->u.mlme.status == MLME_DENIED)
4041 CHECK_MLME_TRIGGER(mvm, trig, buf,
4042 trig_mlme->stop_auth_denied,
4043 "DENIED AUTH: reason %d",
4044 event->u.mlme.reason);
4045 else if (event->u.mlme.status == MLME_TIMEOUT)
4046 CHECK_MLME_TRIGGER(mvm, trig, buf,
4047 trig_mlme->stop_auth_timeout,
4048 "AUTH TIMEOUT");
4049 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4050 CHECK_MLME_TRIGGER(mvm, trig, buf,
4051 trig_mlme->stop_rx_deauth,
4052 "DEAUTH RX %d", event->u.mlme.reason);
4053 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4054 CHECK_MLME_TRIGGER(mvm, trig, buf,
4055 trig_mlme->stop_tx_deauth,
4056 "DEAUTH TX %d", event->u.mlme.reason);
4057 }
4058#undef CHECK_MLME_TRIGGER
4059}
4060
4203263d
EG		 4061static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4062 struct ieee80211_vif *vif,
4063 const struct ieee80211_event *event)
4064{
4065 struct iwl_fw_dbg_trigger_tlv *trig;
4066 struct iwl_fw_dbg_trigger_ba *ba_trig;
4067
4068 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4069 return;
4070
4071 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4072 ba_trig = (void *)trig->data;
4073 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4074 return;
4075
4076 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4077 return;
4078
4079 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4080 "BAR received from %pM, tid %d, ssn %d",
4081 event->u.ba.sta->addr, event->u.ba.tid,
4082 event->u.ba.ssn);
4083}
4084
4085static void
4086iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4087 struct ieee80211_vif *vif,
4088 const struct ieee80211_event *event)
4089{
4090 struct iwl_fw_dbg_trigger_tlv *trig;
4091 struct iwl_fw_dbg_trigger_ba *ba_trig;
4092
4093 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4094 return;
4095
4096 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4097 ba_trig = (void *)trig->data;
4098 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4099 return;
4100
4101 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4102 return;
4103
4104 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4105 "Frame from %pM timed out, tid %d",
4106 event->u.ba.sta->addr, event->u.ba.tid);
4107}
4108
4109static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4110 struct ieee80211_vif *vif,
4111 const struct ieee80211_event *event)
4112{
4113 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4114
4115 switch (event->type) {
4116 case MLME_EVENT:
4117 iwl_mvm_event_mlme_callback(mvm, vif, event);
4118 break;
4119 case BAR_RX_EVENT:
4120 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4121 break;
4122 case BA_FRAME_TIMEOUT:
4123 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4124 break;
4125 default:
4126 break;
4127 }
4128}
4129
e5209263 4130const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4131 .tx = iwl_mvm_mac_tx,
4132 .ampdu_action = iwl_mvm_mac_ampdu_action,
4133 .start = iwl_mvm_mac_start,
cf2c92d8 4134 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4135 .stop = iwl_mvm_mac_stop,
4136 .add_interface = iwl_mvm_mac_add_interface,
4137 .remove_interface = iwl_mvm_mac_remove_interface,
4138 .config = iwl_mvm_mac_config,
e59647ea 4139 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4140 .configure_filter = iwl_mvm_configure_filter,
4141 .bss_info_changed = iwl_mvm_bss_info_changed,
4142 .hw_scan = iwl_mvm_mac_hw_scan,
4143 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4144 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4145 .sta_state = iwl_mvm_mac_sta_state,
4146 .sta_notify = iwl_mvm_mac_sta_notify,
4147 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4148 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4149 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4150 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4151 .conf_tx = iwl_mvm_mac_conf_tx,
4152 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4153 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4154 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4155 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4156 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4157 .set_key = iwl_mvm_mac_set_key,
4158 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4159 .remain_on_channel = iwl_mvm_roc,
4160 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4161 .add_chanctx = iwl_mvm_add_chanctx,
4162 .remove_chanctx = iwl_mvm_remove_chanctx,
4163 .change_chanctx = iwl_mvm_change_chanctx,
4164 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4165 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4166 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4167
5023d966
JB		 4168 .start_ap = iwl_mvm_start_ap_ibss,
4169 .stop_ap = iwl_mvm_stop_ap_ibss,
4170 .join_ibss = iwl_mvm_start_ap_ibss,
4171 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4172
4173 .set_tim = iwl_mvm_set_tim,
4174
622e3f9b 4175 .channel_switch = iwl_mvm_channel_switch,
f028905c 4176 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4177 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4178
1d3c3f63
AN		 4179 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4180 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4181 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4182
d42f5350
EG		 4183 .event_callback = iwl_mvm_mac_event_callback,
4184
507cadf2
DS		 4185 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4186
8ca151b5
JB		 4187#ifdef CONFIG_PM_SLEEP
4188 /* look at d3.c */
4189 .suspend = iwl_mvm_suspend,
4190 .resume = iwl_mvm_resume,
4191 .set_wakeup = iwl_mvm_set_wakeup,
4192 .set_rekey_data = iwl_mvm_set_rekey_data,
4193#if IS_ENABLED(CONFIG_IPV6)
4194 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4195#endif
4196 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4197#endif
91a8bcde 4198 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4199 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4200};
Linux kernel - Deliverables
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