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iwlwifi: prepare for higher API/CAPA bits
[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;
8ca151b5
JB		 418
419 /* Tell mac80211 our characteristics */
420 hw->flags = IEEE80211_HW_SIGNAL_DBM |
421 IEEE80211_HW_SPECTRUM_MGMT |
422 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
423 IEEE80211_HW_QUEUE_CONTROL |
424 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 425 IEEE80211_HW_SUPPORTS_PS |
426 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 427 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 428 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 429 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a 430 IEEE80211_HW_CHANCTX_STA_CSA |
0d060384 431 IEEE80211_HW_SUPPORT_FAST_XMIT |
b71d9c8a 432 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 433
19e737c9 434 hw->queues = mvm->first_agg_queue;
398e8c6c 435 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 436 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
437 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 438 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
439 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 440 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 441 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
442 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 443
444 /*
445 * Enable 11w if advertised by firmware and software crypto
446 * is not enabled (as the firmware will interpret some mgmt
447 * packets, so enabling it with software crypto isn't safe)
448 */
449 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
450 !iwlwifi_mod_params.sw_crypto)
451 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
452
1f940386
LC		 453 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
454 hw->wiphy->features |=
455 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
3db93420
JB		 456 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
457 NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
fb98be5e 458
8ca151b5
JB		 459 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
460 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 461 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 462
463 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 464 BIT(NL80211_IFTYPE_P2P_CLIENT) |
465 BIT(NL80211_IFTYPE_AP) |
466 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 467 BIT(NL80211_IFTYPE_P2P_DEVICE) |
468 BIT(NL80211_IFTYPE_ADHOC);
5023d966 469
a2f73b6c 470 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
8ba2d7a1
EH		 471 hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
472 if (iwl_mvm_is_lar_supported(mvm))
473 hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
474 else
475 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
476 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 477
3e56eadf
JB		 478 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
479 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
480
94bbed72 481 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 482
8ca151b5
JB		 483 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
484 hw->wiphy->n_iface_combinations =
485 ARRAY_SIZE(iwl_mvm_iface_combinations);
486
c451e6d4 487 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 488 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 489 /* we can compensate an offset of up to 3 channels = 15 MHz */
490 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 491
492 /* Extract MAC address */
493 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
494 hw->wiphy->addresses = mvm->addresses;
495 hw->wiphy->n_addresses = 1;
831e85f3
IP		 496
497 /* Extract additional MAC addresses if available */
498 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
499 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
500
501 for (i = 1; i < num_mac; i++) {
502 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 503 ETH_ALEN);
831e85f3 504 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 505 hw->wiphy->n_addresses++;
506 }
507
fe0f2de3
IP		 508 iwl_mvm_reset_phy_ctxts(mvm);
509
999d2568 510 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
20f1a5de 511
8ca151b5
JB		 512 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
513
c7d42480 514 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
507e4cda
LC		 515 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
516 IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
517
859d914c 518 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
507e4cda
LC		 519 mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
520 else
521 mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
522
8ca151b5
JB		 523 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
524 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
525 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 526 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 527 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
528 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
529
859d914c
JB		 530 if (fw_has_capa(&mvm->fw->ucode_capa,
531 IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
532 fw_has_api(&mvm->fw->ucode_capa,
533 IWL_UCODE_TLV_API_LQ_SS_PARAMS))
3d44eebf
ES		 534 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
535 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
536 }
537
8ca151b5
JB		 538 hw->wiphy->hw_version = mvm->trans->hw_id;
539
ade50652 540 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 541 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
542 else
543 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
544
9954b37c
EG		 545 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
546 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
547 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
548 /* we create the 802.11 header and zero length SSID IE. */
549 hw->wiphy->max_sched_scan_ie_len =
550 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
35a000b7 551
8ca151b5 552 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 553 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 554 NL80211_FEATURE_P2P_GO_OPPPS |
555 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 556 NL80211_FEATURE_STATIC_SMPS |
557 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 558
859d914c
JB		 559 if (fw_has_capa(&mvm->fw->ucode_capa,
560 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
f1daa00e 561 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
859d914c
JB		 562 if (fw_has_capa(&mvm->fw->ucode_capa,
563 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
226bcd48 564 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 565
859d914c
JB		 566 if (fw_has_capa(&mvm->fw->ucode_capa,
567 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
73897bd1
AO		 568 hw->wiphy->features |=
569 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
570
859d914c
JB		 571 if (fw_has_capa(&mvm->fw->ucode_capa,
572 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
73897bd1
AO		 573 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
574
8ca151b5
JB		 575 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
576
e36e5433 577 /* currently FW API supports only one optional cipher scheme */
9ddca860 578 if (mvm->fw->cs[0].cipher) {
e36e5433 579 mvm->hw->n_cipher_schemes = 1;
9ddca860 580 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 581 }
582
8ca151b5 583#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 584 if (iwl_mvm_is_d0i3_supported(mvm) &&
585 device_can_wakeup(mvm->trans->dev)) {
586 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
587 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 588 }
589
590 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 591 mvm->trans->ops->d3_suspend &&
592 mvm->trans->ops->d3_resume &&
593 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 594 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
595 WIPHY_WOWLAN_DISCONNECT |
596 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
597 WIPHY_WOWLAN_RFKILL_RELEASE |
598 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 599 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 600 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
601 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
602 WIPHY_WOWLAN_4WAY_HANDSHAKE;
603
604 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
605 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
606 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 607 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 608 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
609 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 610 }
611#endif
612
77736923
EP		 613#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
614 /* assign default bcast filtering configuration */
615 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
616#endif
617
8ca151b5
JB		 618 ret = iwl_mvm_leds_init(mvm);
619 if (ret)
620 return ret;
621
859d914c
JB		 622 if (fw_has_capa(&mvm->fw->ucode_capa,
623 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
d8f1c515
AN		 624 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
625 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
626 }
627
859d914c
JB		 628 if (fw_has_capa(&mvm->fw->ucode_capa,
629 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
1d3c3f63
AN		 630 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
631 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
632 }
633
b7327d89
EG		 634 ret = ieee80211_register_hw(mvm->hw);
635 if (ret)
636 iwl_mvm_leds_exit(mvm);
637
638 return ret;
8ca151b5
JB		 639}
640
b2492501
AN		 641static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
642 struct ieee80211_sta *sta,
643 struct sk_buff *skb)
644{
645 struct iwl_mvm_sta *mvmsta;
646 bool defer = false;
647
648 /*
649 * double check the IN_D0I3 flag both before and after
650 * taking the spinlock, in order to prevent taking
651 * the spinlock when not needed.
652 */
653 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
654 return false;
655
656 spin_lock(&mvm->d0i3_tx_lock);
657 /*
658 * testing the flag again ensures the skb dequeue
659 * loop (on d0i3 exit) hasn't run yet.
660 */
661 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
662 goto out;
663
664 mvmsta = iwl_mvm_sta_from_mac80211(sta);
665 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
666 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
667 goto out;
668
669 __skb_queue_tail(&mvm->d0i3_tx, skb);
670 ieee80211_stop_queues(mvm->hw);
671
672 /* trigger wakeup */
673 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
674 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
675
676 defer = true;
677out:
678 spin_unlock(&mvm->d0i3_tx_lock);
679 return defer;
680}
681
8ca151b5
JB		 682static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
683 struct ieee80211_tx_control *control,
684 struct sk_buff *skb)
685{
686 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 687 struct ieee80211_sta *sta = control->sta;
688 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
689 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 690
9ee718aa
EL		 691 if (iwl_mvm_is_radio_killed(mvm)) {
692 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 693 goto drop;
694 }
695
398e8c6c 696 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 697 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
698 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 699 goto drop;
700
3e56eadf
JB		 701 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
702 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
703 ieee80211_is_mgmt(hdr->frame_control) &&
704 !ieee80211_is_deauth(hdr->frame_control) &&
705 !ieee80211_is_disassoc(hdr->frame_control) &&
706 !ieee80211_is_action(hdr->frame_control)))
707 sta = NULL;
708
709 if (sta) {
b2492501
AN		 710 if (iwl_mvm_defer_tx(mvm, sta, skb))
711 return;
3e56eadf 712 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 713 goto drop;
714 return;
715 }
716
717 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
718 goto drop;
719 return;
720 drop:
721 ieee80211_free_txskb(hw, skb);
722}
723
205e2210
EG		 724static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
725{
726 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
727 return false;
728 return true;
729}
730
731static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
732{
733 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
734 return false;
735 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
736 return true;
737
738 /* enabled by default */
739 return true;
740}
741
4203263d
EG		 742#define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
743 do { \
744 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
745 break; \
746 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
747 } while (0)
748
749static void
750iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
751 struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
752 enum ieee80211_ampdu_mlme_action action)
753{
754 struct iwl_fw_dbg_trigger_tlv *trig;
755 struct iwl_fw_dbg_trigger_ba *ba_trig;
756
757 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
758 return;
759
760 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
761 ba_trig = (void *)trig->data;
762
763 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
764 return;
765
766 switch (action) {
767 case IEEE80211_AMPDU_TX_OPERATIONAL: {
768 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
769 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
770
771 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
772 "TX AGG START: MAC %pM tid %d ssn %d\n",
773 sta->addr, tid, tid_data->ssn);
774 break;
775 }
776 case IEEE80211_AMPDU_TX_STOP_CONT:
777 CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
778 "TX AGG STOP: MAC %pM tid %d\n",
779 sta->addr, tid);
780 break;
781 case IEEE80211_AMPDU_RX_START:
782 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
783 "RX AGG START: MAC %pM tid %d ssn %d\n",
784 sta->addr, tid, rx_ba_ssn);
785 break;
786 case IEEE80211_AMPDU_RX_STOP:
787 CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
788 "RX AGG STOP: MAC %pM tid %d\n",
789 sta->addr, tid);
790 break;
791 default:
792 break;
793 }
794}
795
8ca151b5
JB		 796static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
797 struct ieee80211_vif *vif,
798 enum ieee80211_ampdu_mlme_action action,
799 struct ieee80211_sta *sta, u16 tid,
800 u16 *ssn, u8 buf_size)
801{
802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
803 int ret;
b2492501 804 bool tx_agg_ref = false;
8ca151b5
JB		 805
806 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
807 sta->addr, tid, action);
808
809 if (!(mvm->nvm_data->sku_cap_11n_enable))
810 return -EACCES;
811
b2492501 812 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 813 switch (action) {
814 case IEEE80211_AMPDU_TX_START:
815 case IEEE80211_AMPDU_TX_STOP_CONT:
816 case IEEE80211_AMPDU_TX_STOP_FLUSH:
817 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
818 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 819 /*
9256c205
EP		 820 * for tx start, wait synchronously until D0i3 exit to
821 * get the correct sequence number for the tid.
822 * additionally, some other ampdu actions use direct
823 * target access, which is not handled automatically
824 * by the trans layer (unlike commands), so wait for
825 * d0i3 exit in these cases as well.
b2492501 826 */
d40fc489
GG		 827 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
828 if (ret)
829 return ret;
830
831 tx_agg_ref = true;
9256c205
EP		 832 break;
833 default:
834 break;
b2492501
AN		 835 }
836
8ca151b5
JB		 837 mutex_lock(&mvm->mutex);
838
839 switch (action) {
840 case IEEE80211_AMPDU_RX_START:
205e2210 841 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 842 ret = -EINVAL;
843 break;
844 }
845 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
846 break;
847 case IEEE80211_AMPDU_RX_STOP:
848 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
849 break;
850 case IEEE80211_AMPDU_TX_START:
205e2210 851 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 852 ret = -EINVAL;
853 break;
854 }
8ca151b5
JB		 855 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
856 break;
857 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 858 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
859 break;
8ca151b5
JB		 860 case IEEE80211_AMPDU_TX_STOP_FLUSH:
861 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 862 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 863 break;
864 case IEEE80211_AMPDU_TX_OPERATIONAL:
865 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
866 break;
867 default:
868 WARN_ON_ONCE(1);
869 ret = -EINVAL;
870 break;
871 }
4203263d
EG		 872
873 if (!ret) {
874 u16 rx_ba_ssn = 0;
875
876 if (action == IEEE80211_AMPDU_RX_START)
877 rx_ba_ssn = *ssn;
878
879 iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
880 rx_ba_ssn, action);
881 }
8ca151b5
JB		 882 mutex_unlock(&mvm->mutex);
883
b2492501
AN		 884 /*
885 * If the tid is marked as started, we won't use it for offloaded
886 * traffic on the next D0i3 entry. It's safe to unref.
887 */
888 if (tx_agg_ref)
889 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
890
8ca151b5
JB		 891 return ret;
892}
893
894static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
895 struct ieee80211_vif *vif)
896{
897 struct iwl_mvm *mvm = data;
898 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
899
900 mvmvif->uploaded = false;
901 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
902
8ca151b5
JB		 903 spin_lock_bh(&mvm->time_event_lock);
904 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
905 spin_unlock_bh(&mvm->time_event_lock);
906
fe0f2de3 907 mvmvif->phy_ctxt = NULL;
8a275bad 908 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 909}
910
aadede6e
JB		 911static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
912 const void *data, size_t datalen)
913{
914 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
915 ssize_t bytes_read;
916 ssize_t bytes_read_trans;
917
918 if (offset < dump_ptrs->op_mode_len) {
919 bytes_read = min_t(ssize_t, count,
920 dump_ptrs->op_mode_len - offset);
921 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
922 bytes_read);
923 offset += bytes_read;
924 count -= bytes_read;
925
926 if (count == 0)
927 return bytes_read;
928 } else {
929 bytes_read = 0;
930 }
931
932 if (!dump_ptrs->trans_ptr)
933 return bytes_read;
934
935 offset -= dump_ptrs->op_mode_len;
936 bytes_read_trans = min_t(ssize_t, count,
937 dump_ptrs->trans_ptr->len - offset);
938 memcpy(buffer + bytes_read,
939 (u8 *)dump_ptrs->trans_ptr->data + offset,
940 bytes_read_trans);
941
942 return bytes_read + bytes_read_trans;
943}
944
945static void iwl_mvm_free_coredump(const void *data)
946{
947 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
948
949 vfree(fw_error_dump->op_mode_ptr);
950 vfree(fw_error_dump->trans_ptr);
951 kfree(fw_error_dump);
952}
953
04fd2c28
LK		 954static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
955 struct iwl_fw_error_dump_data **dump_data)
956{
957 struct iwl_fw_error_dump_fifo *fifo_hdr;
958 u32 *fifo_data;
959 u32 fifo_len;
960 unsigned long flags;
961 int i, j;
962
963 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
964 return;
965
966 /* Pull RXF data from all RXFs */
967 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
968 /*
969 * Keep aside the additional offset that might be needed for
970 * next RXF
971 */
972 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
973
974 fifo_hdr = (void *)(*dump_data)->data;
975 fifo_data = (void *)fifo_hdr->data;
976 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
977
978 /* No need to try to read the data if the length is 0 */
979 if (fifo_len == 0)
980 continue;
981
982 /* Add a TLV for the RXF */
983 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
984 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
985
986 fifo_hdr->fifo_num = cpu_to_le32(i);
987 fifo_hdr->available_bytes =
988 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
989 RXF_RD_D_SPACE +
990 offset_diff));
991 fifo_hdr->wr_ptr =
992 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
993 RXF_RD_WR_PTR +
994 offset_diff));
995 fifo_hdr->rd_ptr =
996 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
997 RXF_RD_RD_PTR +
998 offset_diff));
999 fifo_hdr->fence_ptr =
1000 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1001 RXF_RD_FENCE_PTR +
1002 offset_diff));
1003 fifo_hdr->fence_mode =
1004 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1005 RXF_SET_FENCE_MODE +
1006 offset_diff));
1007
1008 /* Lock fence */
1009 iwl_trans_write_prph(mvm->trans,
1010 RXF_SET_FENCE_MODE + offset_diff, 0x1);
1011 /* Set fence pointer to the same place like WR pointer */
1012 iwl_trans_write_prph(mvm->trans,
1013 RXF_LD_WR2FENCE + offset_diff, 0x1);
1014 /* Set fence offset */
1015 iwl_trans_write_prph(mvm->trans,
1016 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
1017 0x0);
1018
1019 /* Read FIFO */
1020 fifo_len /= sizeof(u32); /* Size in DWORDS */
1021 for (j = 0; j < fifo_len; j++)
1022 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1023 RXF_FIFO_RD_FENCE_INC +
1024 offset_diff);
1025 *dump_data = iwl_fw_error_next_data(*dump_data);
1026 }
1027
1028 /* Pull TXF data from all TXFs */
1029 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
1030 /* Mark the number of TXF we're pulling now */
1031 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
1032
1033 fifo_hdr = (void *)(*dump_data)->data;
1034 fifo_data = (void *)fifo_hdr->data;
1035 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
1036
1037 /* No need to try to read the data if the length is 0 */
1038 if (fifo_len == 0)
1039 continue;
1040
1041 /* Add a TLV for the FIFO */
1042 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
1043 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
1044
1045 fifo_hdr->fifo_num = cpu_to_le32(i);
1046 fifo_hdr->available_bytes =
1047 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1048 TXF_FIFO_ITEM_CNT));
1049 fifo_hdr->wr_ptr =
1050 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1051 TXF_WR_PTR));
1052 fifo_hdr->rd_ptr =
1053 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1054 TXF_RD_PTR));
1055 fifo_hdr->fence_ptr =
1056 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1057 TXF_FENCE_PTR));
1058 fifo_hdr->fence_mode =
1059 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
1060 TXF_LOCK_FENCE));
1061
1062 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1063 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
1064 TXF_WR_PTR);
1065
1066 /* Dummy-read to advance the read pointer to the head */
1067 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
1068
1069 /* Read FIFO */
1070 fifo_len /= sizeof(u32); /* Size in DWORDS */
1071 for (j = 0; j < fifo_len; j++)
1072 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
1073 TXF_READ_MODIFY_DATA);
1074 *dump_data = iwl_fw_error_next_data(*dump_data);
1075 }
1076
1077 iwl_trans_release_nic_access(mvm->trans, &flags);
1078}
1079
b6eaa45a
EG		 1080void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
1081{
1082 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
1083 !mvm->fw_dump_desc)
1084 return;
1085
1086 kfree(mvm->fw_dump_desc);
1087 mvm->fw_dump_desc = NULL;
1088}
1089
e539761d
LK		 1090#define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1091#define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1092
4bfa47f3 1093void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 1094{
1095 struct iwl_fw_error_dump_file *dump_file;
1096 struct iwl_fw_error_dump_data *dump_data;
1097 struct iwl_fw_error_dump_info *dump_info;
a549b296 1098 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 1099 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 1100 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 1101 u32 sram_len, sram_ofs;
04fd2c28 1102 u32 file_len, fifo_data_len = 0;
addfaada 1103 u32 smem_len = mvm->cfg->smem_len;
86138324 1104 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 1105
1106 lockdep_assert_held(&mvm->mutex);
1107
aadede6e 1108 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 1109 if (!fw_error_dump)
1110 return;
1111
f53bf4c7
LK		 1112 /* SRAM - include stack CCM if driver knows the values for it */
1113 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
1114 const struct fw_img *img;
1115
1116 img = &mvm->fw->img[mvm->cur_ucode];
1117 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
1118 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
1119 } else {
1120 sram_ofs = mvm->cfg->dccm_offset;
1121 sram_len = mvm->cfg->dccm_len;
1122 }
655e6d6d 1123
04fd2c28
LK		 1124 /* reading RXF/TXF sizes */
1125 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
1126 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
1127 int i;
1128
1129 fifo_data_len = 0;
1130
1131 /* Count RXF size */
1132 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
1133 if (!mem_cfg->rxfifo_size[i])
1134 continue;
1135
1136 /* Add header info */
1137 fifo_data_len += mem_cfg->rxfifo_size[i] +
1138 sizeof(*dump_data) +
1139 sizeof(struct iwl_fw_error_dump_fifo);
1140 }
1141
1142 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
1143 if (!mem_cfg->txfifo_size[i])
1144 continue;
655e6d6d 1145
04fd2c28
LK		 1146 /* Add header info */
1147 fifo_data_len += mem_cfg->txfifo_size[i] +
1148 sizeof(*dump_data) +
1149 sizeof(struct iwl_fw_error_dump_fifo);
1150 }
1151 }
655e6d6d
EG		 1152
1153 file_len = sizeof(*dump_file) +
04fd2c28 1154 sizeof(*dump_data) * 2 +
a549b296 1155 sram_len + sizeof(*dump_mem) +
04fd2c28 1156 fifo_data_len +
655e6d6d
EG		 1157 sizeof(*dump_info);
1158
e539761d
LK		 1159 /*
1160 * In 8000 HW family B-step include the ICCM (which resides separately)
1161 */
1162 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1163 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP)
1164 file_len += sizeof(*dump_data) + sizeof(*dump_mem) +
1165 IWL8260_ICCM_LEN;
1166
b6eaa45a
EG		 1167 if (mvm->fw_dump_desc)
1168 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
1169 mvm->fw_dump_desc->len;
1170
addfaada
LK		 1171 /* Make room for the SMEM, if it exists */
1172 if (smem_len)
a549b296 1173 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 1174
86138324
IY		 1175 /* Make room for the secondary SRAM, if it exists */
1176 if (sram2_len)
1177 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
1178
5bfe6f53 1179 dump_file = vzalloc(file_len);
48eb7b34
EG		 1180 if (!dump_file) {
1181 kfree(fw_error_dump);
b6eaa45a 1182 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 1183 return;
48eb7b34 1184 }
655e6d6d 1185
48eb7b34 1186 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 1187
1188 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 1189 dump_data = (void *)dump_file->data;
1190
1191 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1192 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1193 dump_info = (void *) dump_data->data;
1194 dump_info->device_family =
1195 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1196 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1197 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1198 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1199 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1200 sizeof(dump_info->fw_human_readable));
1201 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1202 sizeof(dump_info->dev_human_readable));
1203 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1204 sizeof(dump_info->bus_human_readable));
1205
1206 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1207 /* We only dump the FIFOs if the FW is in error state */
1208 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1209 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1210
b6eaa45a
EG		 1211 if (mvm->fw_dump_desc) {
1212 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1213 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1214 mvm->fw_dump_desc->len);
1215 dump_trig = (void *)dump_data->data;
1216 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1217 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1218
1219 /* now we can free this copy */
1220 iwl_mvm_free_fw_dump_desc(mvm);
1221 dump_data = iwl_fw_error_next_data(dump_data);
1222 }
1223
a549b296
EG		 1224 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1225 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1226 dump_mem = (void *)dump_data->data;
1227 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1228 dump_mem->offset = cpu_to_le32(sram_ofs);
1229 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1230 sram_len);
1231
addfaada
LK		 1232 if (smem_len) {
1233 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1234 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1235 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1236 dump_mem = (void *)dump_data->data;
1237 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1238 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1239 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1240 dump_mem->data, smem_len);
addfaada
LK		 1241 }
1242
86138324
IY		 1243 if (sram2_len) {
1244 dump_data = iwl_fw_error_next_data(dump_data);
1245 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1246 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1247 dump_mem = (void *)dump_data->data;
1248 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1249 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1250 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1251 dump_mem->data, sram2_len);
1252 }
1253
e539761d
LK		 1254 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
1255 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_B_STEP) {
1256 dump_data = iwl_fw_error_next_data(dump_data);
1257 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1258 dump_data->len = cpu_to_le32(IWL8260_ICCM_LEN +
1259 sizeof(*dump_mem));
1260 dump_mem = (void *)dump_data->data;
1261 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1262 dump_mem->offset = cpu_to_le32(IWL8260_ICCM_OFFSET);
1263 iwl_trans_read_mem_bytes(mvm->trans, IWL8260_ICCM_OFFSET,
1264 dump_mem->data, IWL8260_ICCM_LEN);
1265 }
1266
48eb7b34
EG		 1267 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1268 fw_error_dump->op_mode_len = file_len;
1269 if (fw_error_dump->trans_ptr)
1270 file_len += fw_error_dump->trans_ptr->len;
1271 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1272
aadede6e
JB		 1273 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1274 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1275
1276 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1277}
655e6d6d 1278
b6eaa45a
EG		 1279struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1280 .trig_desc = {
1281 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1282 },
1283};
1284
8ca151b5
JB		 1285static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1286{
58629d9d
JB		 1287 /* clear the D3 reconfig, we only need it to avoid dumping a
1288 * firmware coredump on reconfiguration, we shouldn't do that
1289 * on D3->D0 transition
1290 */
b6eaa45a
EG		 1291 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1292 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1293 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1294 }
1bd3cbc1 1295
744cb695
EP		 1296 /* cleanup all stale references (scan, roc), but keep the
1297 * ucode_down ref until reconfig is complete
1298 */
1299 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1300
8ca151b5 1301 iwl_trans_stop_device(mvm->trans);
8ca151b5 1302
9af91f46 1303 mvm->scan_status = 0;
b1873300 1304 mvm->ps_disabled = false;
31b8b343 1305 mvm->calibrating = false;
8ca151b5
JB		 1306
1307 /* just in case one was running */
1308 ieee80211_remain_on_channel_expired(mvm->hw);
1309
737719fe
AN		 1310 /*
1311 * cleanup all interfaces, even inactive ones, as some might have
1312 * gone down during the HW restart
1313 */
1314 ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
8ca151b5 1315
fe0f2de3 1316 mvm->p2p_device_vif = NULL;
37577fe2 1317 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1318
1319 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5 1320 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1321 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1322 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1323 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1324 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1325 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1326 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1327 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1328
1329 ieee80211_wake_queues(mvm->hw);
1330
228670b2
EP		 1331 /* clear any stale d0i3 state */
1332 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1333
8ca151b5 1334 mvm->vif_count = 0;
113a0447 1335 mvm->rx_ba_sessions = 0;
d2709ad7 1336 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1337
1338 /* keep statistics ticking */
1339 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1340}
1341
a0a09243 1342int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1343{
8ca151b5
JB		 1344 int ret;
1345
a0a09243 1346 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1347
1348 /* Clean up some internal and mac80211 state on restart */
1349 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1350 iwl_mvm_restart_cleanup(mvm);
1351
1352 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1353
1354 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1355 /* Something went wrong - we need to finish some cleanup
1356 * that normally iwl_mvm_mac_restart_complete() below
1357 * would do.
1358 */
1359 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1360 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1361 }
1362
a0a09243
LC		 1363 return ret;
1364}
1365
1366static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1367{
1368 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1369 int ret;
1370
37948fcf
EP		 1371 /* Some hw restart cleanups must not hold the mutex */
1372 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1373 /*
1374 * Make sure we are out of d0i3. This is needed
1375 * to make sure the reference accounting is correct
1376 * (and there is no stale d0i3_exit_work).
1377 */
1378 wait_event_timeout(mvm->d0i3_exit_waitq,
1379 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1380 &mvm->status),
1381 HZ);
1382 }
1383
a0a09243
LC		 1384 mutex_lock(&mvm->mutex);
1385 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1386 mutex_unlock(&mvm->mutex);
1387
1388 return ret;
1389}
1390
cf2c92d8 1391static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1392{
8ca151b5
JB		 1393 int ret;
1394
1395 mutex_lock(&mvm->mutex);
1396
1397 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1398 iwl_mvm_d0i3_enable_tx(mvm, NULL);
e7afe89f 1399 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 1400 if (ret)
1401 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1402 ret);
1403
7498cf4c
EP		 1404 /* allow transport/FW low power modes */
1405 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1406
cbd2ae2d
AN		 1407 /*
1408 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1409 * of packets the FW sent out, so we must reconnect.
1410 */
1411 iwl_mvm_teardown_tdls_peers(mvm);
1412
8ca151b5
JB		 1413 mutex_unlock(&mvm->mutex);
1414}
1415
088070a2
EP		 1416static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1417{
1418 bool exit_now;
1419
1420 if (!iwl_mvm_is_d0i3_supported(mvm))
1421 return;
1422
1423 mutex_lock(&mvm->d0i3_suspend_mutex);
1424 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1425 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1426 &mvm->d0i3_suspend_flags);
1427 mutex_unlock(&mvm->d0i3_suspend_mutex);
1428
1429 if (exit_now) {
1430 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1431 _iwl_mvm_exit_d0i3(mvm);
1432 }
6735943f
EP		 1433
1434 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1435 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1436 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1437 &mvm->status),
1438 HZ))
1439 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1440}
1441
cf2c92d8
EP		 1442static void
1443iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1444 enum ieee80211_reconfig_type reconfig_type)
1445{
1446 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1447
1448 switch (reconfig_type) {
1449 case IEEE80211_RECONFIG_TYPE_RESTART:
1450 iwl_mvm_restart_complete(mvm);
1451 break;
1452 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1453 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1454 break;
1455 }
1456}
1457
a0a09243 1458void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1459{
a0a09243 1460 lockdep_assert_held(&mvm->mutex);
7498cf4c 1461
91a8bcde
JB		 1462 /* firmware counters are obviously reset now, but we shouldn't
1463 * partially track so also clear the fw_reset_accu counters.
1464 */
1465 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1466
0a79a0c0
EP		 1467 /*
1468 * Disallow low power states when the FW is down by taking
1469 * the UCODE_DOWN ref. in case of ongoing hw restart the
1470 * ref is already taken, so don't take it again.
1471 */
1472 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1473 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1474
8ca151b5
JB		 1475 /* async_handlers_wk is now blocked */
1476
1477 /*
1478 * The work item could be running or queued if the
1479 * ROC time event stops just as we get here.
1480 */
c779273b 1481 flush_work(&mvm->roc_done_wk);
8ca151b5
JB		 1482
1483 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1484
1485 iwl_mvm_async_handlers_purge(mvm);
1486 /* async_handlers_list is empty and will stay empty: HW is stopped */
1487
1488 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1489 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1490
0a79a0c0
EP		 1491 /*
1492 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1493 * won't be called in this case).
8b2b9fbf
AN		 1494 * But make sure to cleanup interfaces that have gone down before/during
1495 * HW restart was requested.
0a79a0c0 1496 */
8b2b9fbf
AN		 1497 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1498 ieee80211_iterate_interfaces(mvm->hw, 0,
1499 iwl_mvm_cleanup_iterator, mvm);
0a79a0c0 1500
963221be
AB		 1501 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1502 * make sure there's nothing left there and warn if any is found.
1503 */
859d914c 1504 if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
963221be
AB		 1505 int i;
1506
507e4cda 1507 for (i = 0; i < mvm->max_scans; i++) {
6185af2a
LC		 1508 if (WARN_ONCE(mvm->scan_uid_status[i],
1509 "UMAC scan UID %d status was not cleaned\n",
1510 i))
1511 mvm->scan_uid_status[i] = 0;
963221be
AB		 1512 }
1513 }
1514
bc44886d 1515 mvm->ucode_loaded = false;
a0a09243 1516}
bc44886d 1517
a0a09243
LC		 1518static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1519{
1520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1521
1522 flush_work(&mvm->d0i3_exit_work);
1523 flush_work(&mvm->async_handlers_wk);
d2709ad7 1524 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1525 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1526
1527 mutex_lock(&mvm->mutex);
1528 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1529 mutex_unlock(&mvm->mutex);
1530
1531 /*
1532 * The worker might have been waiting for the mutex, let it run and
1533 * discover that its list is now empty.
1534 */
1535 cancel_work_sync(&mvm->async_handlers_wk);
1536}
1537
fe0f2de3
IP		 1538static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1539{
1540 u16 i;
1541
1542 lockdep_assert_held(&mvm->mutex);
1543
1544 for (i = 0; i < NUM_PHY_CTX; i++)
1545 if (!mvm->phy_ctxts[i].ref)
1546 return &mvm->phy_ctxts[i];
1547
1548 IWL_ERR(mvm, "No available PHY context\n");
1549 return NULL;
1550}
1551
d44c3fe6
AA		 1552static int iwl_mvm_set_tx_power_old(struct iwl_mvm *mvm,
1553 struct ieee80211_vif *vif, s8 tx_power)
ee9c6cb0
EG		 1554{
1555 /* FW is in charge of regulatory enforcement */
1556 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1557 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1558 .pwr_restriction = cpu_to_le16(tx_power),
1559 };
1560
a1022927 1561 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1562 sizeof(reduce_txpwr_cmd),
1563 &reduce_txpwr_cmd);
1564}
1565
d44c3fe6
AA		 1566static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1567 s16 tx_power)
1568{
1569 struct iwl_dev_tx_power_cmd cmd = {
1570 .set_mode = 0,
1571 .mac_context_id =
1572 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1573 .pwr_restriction = cpu_to_le16(8 * tx_power),
1574 };
1575
859d914c 1576 if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_TX_POWER_DEV))
d44c3fe6
AA		 1577 return iwl_mvm_set_tx_power_old(mvm, vif, tx_power);
1578
1579 if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1580 cmd.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1581
1582 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
1583 sizeof(cmd), &cmd);
1584}
1585
8ca151b5
JB		 1586static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1587 struct ieee80211_vif *vif)
1588{
1589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1590 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1591 int ret;
1592
aa5e1832
EG		 1593 mvmvif->mvm = mvm;
1594
d40fc489
GG		 1595 /*
1596 * make sure D0i3 exit is completed, otherwise a target access
1597 * during tx queue configuration could be done when still in
1598 * D0i3 state.
1599 */
1600 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1601 if (ret)
1602 return ret;
1603
8ca151b5
JB		 1604 /*
1605 * Not much to do here. The stack will not allow interface
1606 * types or combinations that we didn't advertise, so we
1607 * don't really have to check the types.
1608 */
1609
1610 mutex_lock(&mvm->mutex);
1611
33cef925
JB		 1612 /* make sure that beacon statistics don't go backwards with FW reset */
1613 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1614 mvmvif->beacon_stats.accu_num_beacons +=
1615 mvmvif->beacon_stats.num_beacons;
1616
e89044d7 1617 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1618 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1619 if (ret)
1620 goto out_unlock;
1621
1c2abf72 1622 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1623 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1624 mvm->vif_count++;
ea183d02 1625
8ca151b5
JB		 1626 /*
1627 * The AP binding flow can be done only after the beacon
1628 * template is configured (which happens only in the mac80211
1629 * start_ap() flow), and adding the broadcast station can happen
1630 * only after the binding.
1631 * In addition, since modifying the MAC before adding a bcast
1632 * station is not allowed by the FW, delay the adding of MAC context to
1633 * the point where we can also add the bcast station.
1634 * In short: there's not much we can do at this point, other than
1635 * allocating resources :)
1636 */
5023d966
JB		 1637 if (vif->type == NL80211_IFTYPE_AP ||
1638 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1639 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1640 if (ret) {
1641 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1642 goto out_release;
1643 }
1644
77740cb4 1645 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1646 goto out_unlock;
1647 }
1648
8ca151b5
JB		 1649 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1650 if (ret)
1651 goto out_release;
1652
999609f1 1653 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1654 if (ret)
fd66fc1c 1655 goto out_remove_mac;
8ca151b5 1656
7df15b1e 1657 /* beacon filtering */
a1022927 1658 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1659 if (ret)
1660 goto out_remove_mac;
1661
7df15b1e 1662 if (!mvm->bf_allowed_vif &&
73e5f2c5 1663 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1664 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1665 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1666 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1667 }
1668
8ca151b5
JB		 1669 /*
1670 * P2P_DEVICE interface does not have a channel context assigned to it,
1671 * so a dedicated PHY context is allocated to it and the corresponding
1672 * MAC context is bound to it at this stage.
1673 */
1674 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1675
fe0f2de3
IP		 1676 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1677 if (!mvmvif->phy_ctxt) {
1678 ret = -ENOSPC;
bd3351ba 1679 goto out_free_bf;
fe0f2de3 1680 }
8ca151b5 1681
53a9d61e 1682 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1683 ret = iwl_mvm_binding_add_vif(mvm, vif);
1684 if (ret)
53a9d61e 1685 goto out_unref_phy;
8ca151b5 1686
013290aa 1687 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1688 if (ret)
1689 goto out_unbind;
1690
1691 /* Save a pointer to p2p device vif, so it can later be used to
1692 * update the p2p device MAC when a GO is started/stopped */
1693 mvm->p2p_device_vif = vif;
1694 }
1695
63494374 1696 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1697 goto out_unlock;
1698
1699 out_unbind:
1700 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1701 out_unref_phy:
fe0f2de3 1702 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1703 out_free_bf:
1704 if (mvm->bf_allowed_vif == mvmvif) {
1705 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1706 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1707 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1708 }
8ca151b5
JB		 1709 out_remove_mac:
1710 mvmvif->phy_ctxt = NULL;
1711 iwl_mvm_mac_ctxt_remove(mvm, vif);
1712 out_release:
5ee2b215
AB		 1713 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1714 mvm->vif_count--;
1c2abf72 1715
8ca151b5
JB		 1716 iwl_mvm_mac_ctxt_release(mvm, vif);
1717 out_unlock:
1718 mutex_unlock(&mvm->mutex);
1719
d40fc489
GG		 1720 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1721
8ca151b5
JB		 1722 return ret;
1723}
1724
38a12b5b
JB		 1725static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1726 struct ieee80211_vif *vif)
8ca151b5 1727{
d92b732e 1728 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1729
1730 if (tfd_msk) {
fe92e32a
EG		 1731 /*
1732 * mac80211 first removes all the stations of the vif and
1733 * then removes the vif. When it removes a station it also
1734 * flushes the AMPDU session. So by now, all the AMPDU sessions
1735 * of all the stations of this vif are closed, and the queues
1736 * of these AMPDU sessions are properly closed.
1737 * We still need to take care of the shared queues of the vif.
1738 * Flush them here.
1739 */
8ca151b5
JB		 1740 mutex_lock(&mvm->mutex);
1741 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1742 mutex_unlock(&mvm->mutex);
fe92e32a
EG		 1743
1744 /*
1745 * There are transports that buffer a few frames in the host.
1746 * For these, the flush above isn't enough since while we were
1747 * flushing, the transport might have sent more frames to the
1748 * device. To solve this, wait here until the transport is
1749 * empty. Technically, this could have replaced the flush
1750 * above, but flush is much faster than draining. So flush
1751 * first, and drain to make sure we have no frames in the
1752 * transport anymore.
1753 * If a station still had frames on the shared queues, it is
1754 * already marked as draining, so to complete the draining, we
1755 * just need to wait until the transport is empty.
1756 */
1757 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_msk);
8ca151b5
JB		 1758 }
1759
1760 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1761 /*
1762 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1763 * We assume here that all the packets sent to the OFFCHANNEL
1764 * queue are sent in ROC session.
1765 */
1766 flush_work(&mvm->roc_done_wk);
1767 } else {
1768 /*
1769 * By now, all the AC queues are empty. The AGG queues are
1770 * empty too. We already got all the Tx responses for all the
1771 * packets in the queues. The drain work can have been
0742a75a 1772 * triggered. Flush it.
8ca151b5
JB		 1773 */
1774 flush_work(&mvm->sta_drained_wk);
1775 }
38a12b5b
JB		 1776}
1777
1778static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1779 struct ieee80211_vif *vif)
1780{
1781 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1782 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1783
1784 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1785
1786 mutex_lock(&mvm->mutex);
1787
7df15b1e
HG		 1788 if (mvm->bf_allowed_vif == mvmvif) {
1789 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1790 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1791 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1792 }
1793
63494374
JB		 1794 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1795
8ca151b5
JB		 1796 /*
1797 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1798 * interface is be handled as part of the stop_ap flow.
8ca151b5 1799 */
5023d966
JB		 1800 if (vif->type == NL80211_IFTYPE_AP ||
1801 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1802#ifdef CONFIG_NL80211_TESTMODE
1803 if (vif == mvm->noa_vif) {
1804 mvm->noa_vif = NULL;
1805 mvm->noa_duration = 0;
1806 }
1807#endif
013290aa 1808 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1809 goto out_release;
1810 }
1811
1812 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1813 mvm->p2p_device_vif = NULL;
013290aa 1814 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1815 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1816 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1817 mvmvif->phy_ctxt = NULL;
1818 }
1819
5ee2b215 1820 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1821 mvm->vif_count--;
1c2abf72 1822
999609f1 1823 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1824 iwl_mvm_mac_ctxt_remove(mvm, vif);
1825
1826out_release:
1827 iwl_mvm_mac_ctxt_release(mvm, vif);
1828 mutex_unlock(&mvm->mutex);
1829}
1830
1831static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1832{
8ca151b5
JB		 1833 return 0;
1834}
1835
e59647ea
EP		 1836struct iwl_mvm_mc_iter_data {
1837 struct iwl_mvm *mvm;
1838 int port_id;
1839};
1840
1841static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1842 struct ieee80211_vif *vif)
1843{
1844 struct iwl_mvm_mc_iter_data *data = _data;
1845 struct iwl_mvm *mvm = data->mvm;
1846 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1847 int ret, len;
1848
1849 /* if we don't have free ports, mcast frames will be dropped */
1850 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1851 return;
1852
1853 if (vif->type != NL80211_IFTYPE_STATION ||
1854 !vif->bss_conf.assoc)
1855 return;
1856
1857 cmd->port_id = data->port_id++;
1858 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1859 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1860
1c4abec0 1861 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1862 if (ret)
1863 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1864}
1865
1866static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1867{
1868 struct iwl_mvm_mc_iter_data iter_data = {
1869 .mvm = mvm,
88f2fd73
MG		 1870 };
1871
e59647ea
EP		 1872 lockdep_assert_held(&mvm->mutex);
1873
1874 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1875 return;
1876
1c4abec0 1877 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1878 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1879 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1880}
1881
e59647ea
EP		 1882static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1883 struct netdev_hw_addr_list *mc_list)
8ca151b5 1884{
e59647ea
EP		 1885 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1886 struct iwl_mcast_filter_cmd *cmd;
1887 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1888 int addr_count;
1889 bool pass_all;
e59647ea
EP		 1890 int len;
1891
f3bd58f4
MS		 1892 addr_count = netdev_hw_addr_list_count(mc_list);
1893 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1894 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1895 if (pass_all)
e59647ea 1896 addr_count = 0;
e59647ea
EP		 1897
1898 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1899 cmd = kzalloc(len, GFP_ATOMIC);
1900 if (!cmd)
1901 return 0;
1902
1903 if (pass_all) {
1904 cmd->pass_all = 1;
1905 return (u64)(unsigned long)cmd;
1906 }
1907
1908 netdev_hw_addr_list_for_each(addr, mc_list) {
1909 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1910 cmd->count, addr->addr);
1911 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1912 addr->addr, ETH_ALEN);
1913 cmd->count++;
1914 }
1915
1916 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1917}
1918
1919static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1920 unsigned int changed_flags,
1921 unsigned int *total_flags,
1922 u64 multicast)
1923{
e59647ea
EP		 1924 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1925 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1926
e59647ea 1927 mutex_lock(&mvm->mutex);
51b6b9e0 1928
e59647ea
EP		 1929 /* replace previous configuration */
1930 kfree(mvm->mcast_filter_cmd);
1931 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1932
e59647ea
EP		 1933 if (!cmd)
1934 goto out;
51b6b9e0 1935
e59647ea
EP		 1936 iwl_mvm_recalc_multicast(mvm);
1937out:
1938 mutex_unlock(&mvm->mutex);
1939 *total_flags = 0;
51b6b9e0
EG		 1940}
1941
c87163b9
EP		 1942#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1943struct iwl_bcast_iter_data {
1944 struct iwl_mvm *mvm;
1945 struct iwl_bcast_filter_cmd *cmd;
1946 u8 current_filter;
1947};
1948
1949static void
1950iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1951 const struct iwl_fw_bcast_filter *in_filter,
1952 struct iwl_fw_bcast_filter *out_filter)
1953{
1954 struct iwl_fw_bcast_filter_attr *attr;
1955 int i;
1956
1957 memcpy(out_filter, in_filter, sizeof(*out_filter));
1958
1959 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1960 attr = &out_filter->attrs[i];
1961
1962 if (!attr->mask)
1963 break;
1964
2ee8f021
EP		 1965 switch (attr->reserved1) {
1966 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1967 if (vif->bss_conf.arp_addr_cnt != 1) {
1968 attr->mask = 0;
1969 continue;
1970 }
1971
1972 attr->val = vif->bss_conf.arp_addr_list[0];
1973 break;
1974 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1975 attr->val = *(__be32 *)&vif->addr[2];
1976 break;
1977 default:
1978 break;
1979 }
1980 attr->reserved1 = 0;
c87163b9
EP		 1981 out_filter->num_attrs++;
1982 }
1983}
1984
1985static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1986 struct ieee80211_vif *vif)
1987{
1988 struct iwl_bcast_iter_data *data = _data;
1989 struct iwl_mvm *mvm = data->mvm;
1990 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1991 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1992 struct iwl_fw_bcast_mac *bcast_mac;
1993 int i;
1994
1995 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1996 return;
1997
1998 bcast_mac = &cmd->macs[mvmvif->id];
1999
e48393e8
IP		 2000 /*
2001 * enable filtering only for associated stations, but not for P2P
2002 * Clients
2003 */
2004 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
2005 !vif->bss_conf.assoc)
c87163b9
EP		 2006 return;
2007
2008 bcast_mac->default_discard = 1;
2009
2010 /* copy all configured filters */
2011 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
2012 /*
2013 * Make sure we don't exceed our filters limit.
2014 * if there is still a valid filter to be configured,
2015 * be on the safe side and just allow bcast for this mac.
2016 */
2017 if (WARN_ON_ONCE(data->current_filter >=
2018 ARRAY_SIZE(cmd->filters))) {
2019 bcast_mac->default_discard = 0;
2020 bcast_mac->attached_filters = 0;
2021 break;
2022 }
2023
2024 iwl_mvm_set_bcast_filter(vif,
2025 &mvm->bcast_filters[i],
2026 &cmd->filters[data->current_filter]);
2027
2028 /* skip current filter if it contains no attributes */
2029 if (!cmd->filters[data->current_filter].num_attrs)
2030 continue;
2031
2032 /* attach the filter to current mac */
2033 bcast_mac->attached_filters |=
2034 cpu_to_le16(BIT(data->current_filter));
2035
2036 data->current_filter++;
2037 }
2038}
2039
de06a59e
EP		 2040bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
2041 struct iwl_bcast_filter_cmd *cmd)
c87163b9 2042{
c87163b9
EP		 2043 struct iwl_bcast_iter_data iter_data = {
2044 .mvm = mvm,
de06a59e 2045 .cmd = cmd,
c87163b9
EP		 2046 };
2047
3b8983b1
MS		 2048 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
2049 return false;
2050
de06a59e
EP		 2051 memset(cmd, 0, sizeof(*cmd));
2052 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
2053 cmd->max_macs = ARRAY_SIZE(cmd->macs);
2054
2055#ifdef CONFIG_IWLWIFI_DEBUGFS
2056 /* use debugfs filters/macs if override is configured */
2057 if (mvm->dbgfs_bcast_filtering.override) {
2058 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
2059 sizeof(cmd->filters));
2060 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
2061 sizeof(cmd->macs));
2062 return true;
2063 }
2064#endif
c87163b9
EP		 2065
2066 /* if no filters are configured, do nothing */
2067 if (!mvm->bcast_filters)
de06a59e 2068 return false;
c87163b9
EP		 2069
2070 /* configure and attach these filters for each associated sta vif */
2071 ieee80211_iterate_active_interfaces(
2072 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2073 iwl_mvm_bcast_filter_iterator, &iter_data);
2074
de06a59e
EP		 2075 return true;
2076}
2077static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2078 struct ieee80211_vif *vif)
2079{
2080 struct iwl_bcast_filter_cmd cmd;
2081
2082 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
2083 return 0;
2084
2085 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
2086 return 0;
2087
a1022927 2088 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 2089 sizeof(cmd), &cmd);
2090}
2091#else
2092static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
2093 struct ieee80211_vif *vif)
2094{
2095 return 0;
2096}
2097#endif
2098
8ca151b5
JB		 2099static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2100 struct ieee80211_vif *vif,
2101 struct ieee80211_bss_conf *bss_conf,
2102 u32 changes)
2103{
2104 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2105 int ret;
2106
6e97b0d2
IP		 2107 /*
2108 * Re-calculate the tsf id, as the master-slave relations depend on the
2109 * beacon interval, which was not known when the station interface was
2110 * added.
2111 */
2112 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
2113 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2114
3dfd3a97
JB		 2115 /*
2116 * If we're not associated yet, take the (new) BSSID before associating
2117 * so the firmware knows. If we're already associated, then use the old
2118 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2119 * branch for disassociation below.
2120 */
2121 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2122 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2123
2124 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 2125 if (ret)
2126 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2127
3dfd3a97
JB		 2128 /* after sending it once, adopt mac80211 data */
2129 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2130 mvmvif->associated = bss_conf->assoc;
2131
8ca151b5
JB		 2132 if (changes & BSS_CHANGED_ASSOC) {
2133 if (bss_conf->assoc) {
33cef925
JB		 2134 /* clear statistics to get clean beacon counter */
2135 iwl_mvm_request_statistics(mvm, true);
2136 memset(&mvmvif->beacon_stats, 0,
2137 sizeof(mvmvif->beacon_stats));
2138
8ca151b5 2139 /* add quota for this interface */
7754ae79 2140 ret = iwl_mvm_update_quotas(mvm, true, NULL);
8ca151b5
JB		 2141 if (ret) {
2142 IWL_ERR(mvm, "failed to update quotas\n");
2143 return;
2144 }
016d27e1
JB		 2145
2146 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2147 &mvm->status)) {
2148 /*
2149 * If we're restarting then the firmware will
2150 * obviously have lost synchronisation with
2151 * the AP. It will attempt to synchronise by
2152 * itself, but we can make it more reliable by
2153 * scheduling a session protection time event.
2154 *
2155 * The firmware needs to receive a beacon to
2156 * catch up with synchronisation, use 110% of
2157 * the beacon interval.
2158 *
2159 * Set a large maximum delay to allow for more
2160 * than a single interface.
2161 */
2162 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2163 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 2164 5 * dur, false);
016d27e1 2165 }
1f3b0ff8
LE		 2166
2167 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 2168 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 2169 if (vif->p2p) {
29a90a49 2170 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 2171 iwl_mvm_update_smps(mvm, vif,
2172 IWL_MVM_SMPS_REQ_PROT,
2173 IEEE80211_SMPS_DYNAMIC);
2174 }
8ca151b5 2175 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 2176 /*
2177 * If update fails - SF might be running in associated
2178 * mode while disassociated - which is forbidden.
2179 */
2180 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
2181 "Failed to update SF upon disassociation\n");
2182
8ca151b5
JB		 2183 /* remove AP station now that the MAC is unassoc */
2184 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
2185 if (ret)
2186 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 2187
2188 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
2189 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 2190 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
2191 /* remove quota for this interface */
7754ae79 2192 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 2193 if (ret)
2194 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 2195
2196 if (vif->p2p)
2197 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 2198
2199 /* this will take the cleared BSSID from bss_conf */
2200 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2201 if (ret)
2202 IWL_ERR(mvm,
2203 "failed to update MAC %pM (clear after unassoc)\n",
2204 vif->addr);
8ca151b5 2205 }
a20fd398 2206
e59647ea 2207 iwl_mvm_recalc_multicast(mvm);
c87163b9 2208 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 2209
a20fd398
AO		 2210 /* reset rssi values */
2211 mvmvif->bf_data.ave_beacon_signal = 0;
2212
8e484f0b 2213 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 2214 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2215 IEEE80211_SMPS_AUTOMATIC);
989c6505 2216 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 2217 /*
2218 * We received a beacon _after_ association so
2219 * remove the session protection.
2220 */
2221 iwl_mvm_remove_time_event(mvm, mvmvif,
2222 &mvmvif->time_event_data);
8ca151b5 2223 }
cc87d322
EH		 2224
2225 if (changes & BSS_CHANGED_BEACON_INFO) {
2226 iwl_mvm_sf_update(mvm, vif, false);
2227 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2228 }
2229
1bc10d3b
JB		 2230 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
2231 ret = iwl_mvm_power_update_mac(mvm);
2232 if (ret)
2233 IWL_ERR(mvm, "failed to update power mode\n");
2234 }
2235
88f2fd73
MG		 2236 if (changes & BSS_CHANGED_TXPOWER) {
2237 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2238 bss_conf->txpower);
2239 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2240 }
a20fd398
AO		 2241
2242 if (changes & BSS_CHANGED_CQM) {
3c6acb61 2243 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 2244 /* reset cqm events tracking */
2245 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 2246 if (mvmvif->bf_data.bf_enabled) {
2247 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2248 if (ret)
2249 IWL_ERR(mvm,
2250 "failed to update CQM thresholds\n");
2251 }
a20fd398 2252 }
2ee8f021
EP		 2253
2254 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 2255 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 2256 iwl_mvm_configure_bcast_filter(mvm, vif);
2257 }
8ca151b5
JB		 2258}
2259
5023d966
JB		 2260static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2261 struct ieee80211_vif *vif)
8ca151b5
JB		 2262{
2263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2264 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2265 int ret;
2266
576eeee9
EP		 2267 /*
2268 * iwl_mvm_mac_ctxt_add() might read directly from the device
2269 * (the system time), so make sure it is available.
2270 */
2271 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2272 if (ret)
2273 return ret;
2274
8ca151b5
JB		 2275 mutex_lock(&mvm->mutex);
2276
2277 /* Send the beacon template */
2278 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2279 if (ret)
2280 goto out_unlock;
2281
6e97b0d2
IP		 2282 /*
2283 * Re-calculate the tsf id, as the master-slave relations depend on the
2284 * beacon interval, which was not known when the AP interface was added.
2285 */
2286 if (vif->type == NL80211_IFTYPE_AP)
2287 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2288
8ca151b5
JB		 2289 /* Add the mac context */
2290 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2291 if (ret)
2292 goto out_unlock;
2293
2294 /* Perform the binding */
2295 ret = iwl_mvm_binding_add_vif(mvm, vif);
2296 if (ret)
2297 goto out_remove;
2298
8ca151b5
JB		 2299 /* Send the bcast station. At this stage the TBTT and DTIM time events
2300 * are added and applied to the scheduler */
013290aa 2301 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2302 if (ret)
2303 goto out_unbind;
2304
5691e218
IP		 2305 /* must be set before quota calculations */
2306 mvmvif->ap_ibss_active = true;
2307
a11e144e 2308 /* power updated needs to be done before quotas */
999609f1 2309 iwl_mvm_power_update_mac(mvm);
a11e144e 2310
7754ae79 2311 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5 2312 if (ret)
a11e144e 2313 goto out_quota_failed;
8ca151b5 2314
5023d966 2315 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2316 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2317 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2318
29a90a49
EP		 2319 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2320
8e484f0b 2321 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2322
f697267f
AN		 2323 /* we don't support TDLS during DCM */
2324 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2325 iwl_mvm_teardown_tdls_peers(mvm);
2326
939e4904 2327 goto out_unlock;
8ca151b5 2328
a11e144e 2329out_quota_failed:
999609f1 2330 iwl_mvm_power_update_mac(mvm);
5691e218 2331 mvmvif->ap_ibss_active = false;
013290aa 2332 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2333out_unbind:
2334 iwl_mvm_binding_remove_vif(mvm, vif);
2335out_remove:
2336 iwl_mvm_mac_ctxt_remove(mvm, vif);
2337out_unlock:
2338 mutex_unlock(&mvm->mutex);
576eeee9 2339 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2340 return ret;
2341}
2342
5023d966
JB		 2343static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2344 struct ieee80211_vif *vif)
8ca151b5
JB		 2345{
2346 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2347 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2348
38a12b5b
JB		 2349 iwl_mvm_prepare_mac_removal(mvm, vif);
2350
8ca151b5
JB		 2351 mutex_lock(&mvm->mutex);
2352
664322fa 2353 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2354 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2355 iwl_mvm_remove_time_event(mvm, mvmvif,
2356 &mvmvif->time_event_data);
664322fa 2357 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2358 }
664322fa 2359
003e5236
AO		 2360 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2361 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2362 mvm->csa_tx_block_bcn_timeout = 0;
2363 }
2364
5023d966 2365 mvmvif->ap_ibss_active = false;
1c87bbad 2366 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2367
8e484f0b 2368 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2369
29a90a49
EP		 2370 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2371
5023d966 2372 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2373 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2374 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2375
7754ae79 2376 iwl_mvm_update_quotas(mvm, false, NULL);
013290aa 2377 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2378 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2379
999609f1 2380 iwl_mvm_power_update_mac(mvm);
a11e144e 2381
8ca151b5
JB		 2382 iwl_mvm_mac_ctxt_remove(mvm, vif);
2383
2384 mutex_unlock(&mvm->mutex);
2385}
2386
5023d966
JB		 2387static void
2388iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2389 struct ieee80211_vif *vif,
2390 struct ieee80211_bss_conf *bss_conf,
2391 u32 changes)
8ca151b5 2392{
be2056fc 2393 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2394
be2056fc
IP		 2395 /* Changes will be applied when the AP/IBSS is started */
2396 if (!mvmvif->ap_ibss_active)
2397 return;
2398
863230da 2399 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2400 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2401 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2402 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2403
8ca151b5 2404 /* Need to send a new beacon template to the FW */
863230da
JB		 2405 if (changes & BSS_CHANGED_BEACON &&
2406 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2407 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2408
2409 if (changes & BSS_CHANGED_TXPOWER) {
2410 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2411 bss_conf->txpower);
2412 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2413 }
2414
8ca151b5
JB		 2415}
2416
2417static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2418 struct ieee80211_vif *vif,
2419 struct ieee80211_bss_conf *bss_conf,
2420 u32 changes)
2421{
2422 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2423
576eeee9
EP		 2424 /*
2425 * iwl_mvm_bss_info_changed_station() might call
2426 * iwl_mvm_protect_session(), which reads directly from
2427 * the device (the system time), so make sure it is available.
2428 */
2429 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2430 return;
2431
8ca151b5
JB		 2432 mutex_lock(&mvm->mutex);
2433
7576d54f 2434 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
c7d42480 2435 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
723f02ed 2436
8ca151b5
JB		 2437 switch (vif->type) {
2438 case NL80211_IFTYPE_STATION:
2439 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2440 break;
2441 case NL80211_IFTYPE_AP:
5023d966
JB		 2442 case NL80211_IFTYPE_ADHOC:
2443 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2444 break;
2445 default:
2446 /* shouldn't happen */
2447 WARN_ON_ONCE(1);
2448 }
2449
2450 mutex_unlock(&mvm->mutex);
576eeee9 2451 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2452}
2453
2454static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2455 struct ieee80211_vif *vif,
c56ef672 2456 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2457{
2458 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2459 int ret;
2460
6749dd80
LC		 2461 if (hw_req->req.n_channels == 0 ||
2462 hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2463 return -EINVAL;
2464
bd9564da 2465 mutex_lock(&mvm->mutex);
6749dd80 2466 ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
8ca151b5 2467 mutex_unlock(&mvm->mutex);
6749dd80 2468
8ca151b5
JB		 2469 return ret;
2470}
2471
2472static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2473 struct ieee80211_vif *vif)
2474{
2475 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2476
2477 mutex_lock(&mvm->mutex);
2478
e7d3abab
LC		 2479 /* Due to a race condition, it's possible that mac80211 asks
2480 * us to stop a hw_scan when it's already stopped. This can
2481 * happen, for instance, if we stopped the scan ourselves,
2482 * called ieee80211_scan_completed() and the userspace called
2483 * cancel scan scan before ieee80211_scan_work() could run.
2484 * To handle that, simply return if the scan is not running.
2485 */
262888fc 2486 if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
c7d42480 2487 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
8ca151b5
JB		 2488
2489 mutex_unlock(&mvm->mutex);
2490}
2491
2492static void
2493iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2494 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2495 int num_frames,
2496 enum ieee80211_frame_release_type reason,
2497 bool more_data)
2498{
2499 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2500
3e56eadf 2501 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2502
3e56eadf
JB		 2503 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2504 tids, more_data, false);
2505}
2506
2507static void
2508iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2509 struct ieee80211_sta *sta, u16 tids,
2510 int num_frames,
2511 enum ieee80211_frame_release_type reason,
2512 bool more_data)
2513{
2514 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2515
2516 /* Called when we need to transmit (a) frame(s) from agg queue */
2517
2518 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2519 tids, more_data, true);
8ca151b5
JB		 2520}
2521
2522static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2523 struct ieee80211_vif *vif,
2524 enum sta_notify_cmd cmd,
2525 struct ieee80211_sta *sta)
2526{
2527 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2528 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
c22b0ff5 2529 unsigned long txqs = 0, tids = 0;
3e56eadf 2530 int tid;
8ca151b5 2531
c22b0ff5
EG		 2532 spin_lock_bh(&mvmsta->lock);
2533 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2534 struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2535
2536 if (tid_data->state != IWL_AGG_ON &&
2537 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2538 continue;
2539
2540 __set_bit(tid_data->txq_id, &txqs);
2541
2542 if (iwl_mvm_tid_queued(tid_data) == 0)
2543 continue;
2544
2545 __set_bit(tid, &tids);
2546 }
2547
8ca151b5
JB		 2548 switch (cmd) {
2549 case STA_NOTIFY_SLEEP:
e3d4bc8c 2550 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2551 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf 2552
c22b0ff5 2553 for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
3e56eadf 2554 ieee80211_sta_set_buffered(sta, tid, true);
c22b0ff5
EG		 2555
2556 if (txqs)
2557 iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
8ca151b5
JB		 2558 /*
2559 * The fw updates the STA to be asleep. Tx packets on the Tx
2560 * queues to this station will not be transmitted. The fw will
2561 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2562 */
2563 break;
2564 case STA_NOTIFY_AWAKE:
881acd89 2565 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2566 break;
c22b0ff5
EG		 2567
2568 if (txqs)
2569 iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
9cc40712 2570 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2571 break;
2572 default:
2573 break;
2574 }
c22b0ff5 2575 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2576}
2577
1ddbbb0c
JB		 2578static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2579 struct ieee80211_vif *vif,
2580 struct ieee80211_sta *sta)
2581{
2582 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2583 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2584
2585 /*
2586 * This is called before mac80211 does RCU synchronisation,
2587 * so here we already invalidate our internal RCU-protected
2588 * station pointer. The rest of the code will thus no longer
2589 * be able to find the station this way, and we don't rely
2590 * on further RCU synchronisation after the sta_state()
2591 * callback deleted the station.
2592 */
2593 mutex_lock(&mvm->mutex);
2594 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2595 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2596 ERR_PTR(-ENOENT));
2597 mutex_unlock(&mvm->mutex);
2598}
2599
bd1ba664
JB		 2600static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2601 const u8 *bssid)
2602{
2603 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2604 return;
2605
2606 if (iwlwifi_mod_params.uapsd_disable) {
2607 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2608 return;
2609 }
2610
2611 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2612}
2613
8ca151b5
JB		 2614static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2615 struct ieee80211_vif *vif,
2616 struct ieee80211_sta *sta,
2617 enum ieee80211_sta_state old_state,
2618 enum ieee80211_sta_state new_state)
2619{
2620 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2621 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2622 int ret;
2623
2624 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2625 sta->addr, old_state, new_state);
2626
2627 /* this would be a mac80211 bug ... but don't crash */
2628 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2629 return -EINVAL;
2630
2631 /* if a STA is being removed, reuse its ID */
2632 flush_work(&mvm->sta_drained_wk);
2633
2634 mutex_lock(&mvm->mutex);
2635 if (old_state == IEEE80211_STA_NOTEXIST &&
2636 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2637 /*
2638 * Firmware bug - it'll crash if the beacon interval is less
2639 * than 16. We can't avoid connecting at all, so refuse the
2640 * station state change, this will cause mac80211 to abandon
2641 * attempts to connect to this AP, and eventually wpa_s will
2642 * blacklist the AP...
2643 */
2644 if (vif->type == NL80211_IFTYPE_STATION &&
2645 vif->bss_conf.beacon_int < 16) {
2646 IWL_ERR(mvm,
2647 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2648 sta->addr, vif->bss_conf.beacon_int);
2649 ret = -EINVAL;
2650 goto out_unlock;
2651 }
cf7b491d
AN		 2652
2653 if (sta->tdls &&
2654 (vif->p2p ||
fa3d07e4
AN		 2655 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2656 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2657 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2658 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2659 ret = -EBUSY;
2660 goto out_unlock;
2661 }
2662
8ca151b5 2663 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2664 if (sta->tdls && ret == 0)
2665 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2666 } else if (old_state == IEEE80211_STA_NONE &&
2667 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2668 /*
2669 * EBS may be disabled due to previous failures reported by FW.
2670 * Reset EBS status here assuming environment has been changed.
2671 */
2672 mvm->last_ebs_successful = true;
bd1ba664 2673 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2674 ret = 0;
2675 } else if (old_state == IEEE80211_STA_AUTH &&
2676 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2677 ret = iwl_mvm_update_sta(mvm, vif, sta);
2678 if (ret == 0)
2679 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2680 mvmvif->phy_ctxt->channel->band,
2681 true);
8ca151b5
JB		 2682 } else if (old_state == IEEE80211_STA_ASSOC &&
2683 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2684
2685 /* we don't support TDLS during DCM */
2686 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2687 iwl_mvm_teardown_tdls_peers(mvm);
2688
7df15b1e 2689 /* enable beacon filtering */
fa7b2e7f 2690 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2691 ret = 0;
2692 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2693 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2694 /* disable beacon filtering */
a1022927 2695 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2696 ret = 0;
2697 } else if (old_state == IEEE80211_STA_ASSOC &&
2698 new_state == IEEE80211_STA_AUTH) {
2699 ret = 0;
2700 } else if (old_state == IEEE80211_STA_AUTH &&
2701 new_state == IEEE80211_STA_NONE) {
2702 ret = 0;
2703 } else if (old_state == IEEE80211_STA_NONE &&
2704 new_state == IEEE80211_STA_NOTEXIST) {
2705 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2706 if (sta->tdls)
2707 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2708 } else {
2709 ret = -EIO;
2710 }
48bc1307 2711 out_unlock:
8ca151b5
JB		 2712 mutex_unlock(&mvm->mutex);
2713
9c126cd6
LK		 2714 if (sta->tdls && ret == 0) {
2715 if (old_state == IEEE80211_STA_NOTEXIST &&
2716 new_state == IEEE80211_STA_NONE)
2717 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2718 else if (old_state == IEEE80211_STA_NONE &&
2719 new_state == IEEE80211_STA_NOTEXIST)
2720 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2721 }
2722
8ca151b5
JB		 2723 return ret;
2724}
2725
2726static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2727{
2728 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2729
2730 mvm->rts_threshold = value;
2731
2732 return 0;
2733}
2734
1f3b0ff8
LE		 2735static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2736 struct ieee80211_vif *vif,
2737 struct ieee80211_sta *sta, u32 changed)
2738{
2739 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2740
2741 if (vif->type == NL80211_IFTYPE_STATION &&
2742 changed & IEEE80211_RC_NSS_CHANGED)
2743 iwl_mvm_sf_update(mvm, vif, false);
2744}
2745
8ca151b5
JB		 2746static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2747 struct ieee80211_vif *vif, u16 ac,
2748 const struct ieee80211_tx_queue_params *params)
2749{
2750 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2751 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2752
2753 mvmvif->queue_params[ac] = *params;
2754
2755 /*
2756 * No need to update right away, we'll get BSS_CHANGED_QOS
2757 * The exception is P2P_DEVICE interface which needs immediate update.
2758 */
2759 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2760 int ret;
2761
2762 mutex_lock(&mvm->mutex);
3dfd3a97 2763 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2764 mutex_unlock(&mvm->mutex);
2765 return ret;
2766 }
2767 return 0;
2768}
2769
2770static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2771 struct ieee80211_vif *vif)
2772{
2773 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2774 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2775 200 + vif->bss_conf.beacon_int);
2776 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2777 100 + vif->bss_conf.beacon_int);
2778
2779 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2780 return;
2781
576eeee9
EP		 2782 /*
2783 * iwl_mvm_protect_session() reads directly from the device
2784 * (the system time), so make sure it is available.
2785 */
2786 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2787 return;
2788
8ca151b5
JB		 2789 mutex_lock(&mvm->mutex);
2790 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2791 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2792 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2793
2794 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2795}
2796
35a000b7
DS		 2797static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2798 struct ieee80211_vif *vif,
2799 struct cfg80211_sched_scan_request *req,
633e2713 2800 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2801{
2802 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
6749dd80 2803
35a000b7
DS		 2804 int ret;
2805
bd9564da
LC		 2806 mutex_lock(&mvm->mutex);
2807
1f940386 2808 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2809 ret = -EBUSY;
2810 goto out;
2811 }
2812
19945dfb 2813 ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
d2496221 2814
35a000b7
DS		 2815out:
2816 mutex_unlock(&mvm->mutex);
2817 return ret;
2818}
2819
37e3308c
JB		 2820static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2821 struct ieee80211_vif *vif)
35a000b7
DS		 2822{
2823 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2824 int ret;
35a000b7
DS		 2825
2826 mutex_lock(&mvm->mutex);
e7d3abab
LC		 2827
2828 /* Due to a race condition, it's possible that mac80211 asks
2829 * us to stop a sched_scan when it's already stopped. This
2830 * can happen, for instance, if we stopped the scan ourselves,
2831 * called ieee80211_sched_scan_stopped() and the userspace called
2832 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2833 * could run. To handle this, simply return if the scan is
2834 * not running.
2835 */
262888fc 2836 if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
e7d3abab
LC		 2837 mutex_unlock(&mvm->mutex);
2838 return 0;
2839 }
2840
c7d42480 2841 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
35a000b7 2842 mutex_unlock(&mvm->mutex);
33ea27f6 2843 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2844
33ea27f6 2845 return ret;
35a000b7
DS		 2846}
2847
8ca151b5
JB		 2848static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2849 enum set_key_cmd cmd,
2850 struct ieee80211_vif *vif,
2851 struct ieee80211_sta *sta,
2852 struct ieee80211_key_conf *key)
2853{
2854 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2855 int ret;
2856
2857 if (iwlwifi_mod_params.sw_crypto) {
2858 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2859 return -EOPNOTSUPP;
2860 }
2861
2862 switch (key->cipher) {
2863 case WLAN_CIPHER_SUITE_TKIP:
2864 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2865 /* fall-through */
2866 case WLAN_CIPHER_SUITE_CCMP:
2867 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2868 break;
2869 case WLAN_CIPHER_SUITE_AES_CMAC:
2870 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2871 break;
2872 case WLAN_CIPHER_SUITE_WEP40:
2873 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2874 /* For non-client mode, only use WEP keys for TX as we probably
2875 * don't have a station yet anyway and would then have to keep
2876 * track of the keys, linking them to each of the clients/peers
2877 * as they appear. For now, don't do that, for performance WEP
2878 * offload doesn't really matter much, but we need it for some
2879 * other offload features in client mode.
8ca151b5 2880 */
ba3943b0
JB		 2881 if (vif->type != NL80211_IFTYPE_STATION)
2882 return 0;
2883 break;
8ca151b5 2884 default:
e36e5433
MS		 2885 /* currently FW supports only one optional cipher scheme */
2886 if (hw->n_cipher_schemes &&
2887 hw->cipher_schemes->cipher == key->cipher)
2888 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2889 else
2890 return -EOPNOTSUPP;
8ca151b5
JB		 2891 }
2892
2893 mutex_lock(&mvm->mutex);
2894
2895 switch (cmd) {
2896 case SET_KEY:
5023d966
JB		 2897 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2898 vif->type == NL80211_IFTYPE_AP) && !sta) {
2899 /*
2900 * GTK on AP interface is a TX-only key, return 0;
2901 * on IBSS they're per-station and because we're lazy
2902 * we don't support them for RX, so do the same.
2903 */
6caffd4f
JB		 2904 ret = 0;
2905 key->hw_key_idx = STA_KEY_IDX_INVALID;
2906 break;
2907 }
2908
b546dcd6
JB		 2909 /* During FW restart, in order to restore the state as it was,
2910 * don't try to reprogram keys we previously failed for.
2911 */
2912 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2913 key->hw_key_idx == STA_KEY_IDX_INVALID) {
2914 IWL_DEBUG_MAC80211(mvm,
2915 "skip invalid idx key programming during restart\n");
2916 ret = 0;
2917 break;
2918 }
2919
8ca151b5 2920 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
b546dcd6
JB		 2921 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key,
2922 test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2923 &mvm->status));
8ca151b5
JB		 2924 if (ret) {
2925 IWL_WARN(mvm, "set key failed\n");
2926 /*
2927 * can't add key for RX, but we don't need it
2928 * in the device for TX so still return 0
2929 */
6caffd4f 2930 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2931 ret = 0;
2932 }
2933
2934 break;
2935 case DISABLE_KEY:
6caffd4f
JB		 2936 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2937 ret = 0;
2938 break;
2939 }
2940
8ca151b5
JB		 2941 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2942 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2943 break;
2944 default:
2945 ret = -EINVAL;
2946 }
2947
2948 mutex_unlock(&mvm->mutex);
2949 return ret;
2950}
2951
2952static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2953 struct ieee80211_vif *vif,
2954 struct ieee80211_key_conf *keyconf,
2955 struct ieee80211_sta *sta,
2956 u32 iv32, u16 *phase1key)
2957{
2958 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2959
5023d966
JB		 2960 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2961 return;
2962
8ca151b5
JB		 2963 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2964}
2965
2966
b112889c
AM		 2967static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2968 struct iwl_rx_packet *pkt, void *data)
2969{
2970 struct iwl_mvm *mvm =
2971 container_of(notif_wait, struct iwl_mvm, notif_wait);
2972 struct iwl_hs20_roc_res *resp;
2973 int resp_len = iwl_rx_packet_payload_len(pkt);
2974 struct iwl_mvm_time_event_data *te_data = data;
2975
2976 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2977 return true;
2978
2979 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2980 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2981 return true;
2982 }
2983
2984 resp = (void *)pkt->data;
2985
2986 IWL_DEBUG_TE(mvm,
2987 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2988 resp->status, resp->event_unique_id);
2989
2990 te_data->uid = le32_to_cpu(resp->event_unique_id);
2991 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2992 te_data->uid);
2993
2994 spin_lock_bh(&mvm->time_event_lock);
2995 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2996 spin_unlock_bh(&mvm->time_event_lock);
2997
2998 return true;
2999}
3000
35d3dab5 3001#define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
b112889c
AM		 3002static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3003 struct ieee80211_channel *channel,
3004 struct ieee80211_vif *vif,
3005 int duration)
3006{
3007 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
3008 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3009 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3010 static const u8 time_event_response[] = { HOT_SPOT_CMD };
3011 struct iwl_notification_wait wait_time_event;
3012 struct iwl_hs20_roc_req aux_roc_req = {
3013 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3014 .id_and_color =
3015 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3016 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3017 /* Set the channel info data */
3018 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
3019 PHY_BAND_24 : PHY_BAND_5,
3020 .channel_info.channel = channel->hw_value,
3021 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
3022 /* Set the time and duration */
3023 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
3024 .apply_time_max_delay =
3025 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
3026 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
3027 };
3028
3029 /* Set the node address */
3030 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
3031
a6cc5163
MG		 3032 lockdep_assert_held(&mvm->mutex);
3033
3034 spin_lock_bh(&mvm->time_event_lock);
3035
3036 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3037 spin_unlock_bh(&mvm->time_event_lock);
3038 return -EIO;
3039 }
3040
b112889c
AM		 3041 te_data->vif = vif;
3042 te_data->duration = duration;
3043 te_data->id = HOT_SPOT_CMD;
3044
b112889c
AM		 3045 spin_unlock_bh(&mvm->time_event_lock);
3046
3047 /*
3048 * Use a notification wait, which really just processes the
3049 * command response and doesn't wait for anything, in order
3050 * to be able to process the response and get the UID inside
3051 * the RX path. Using CMD_WANT_SKB doesn't work because it
3052 * stores the buffer and then wakes up this thread, by which
3053 * time another notification (that the time event started)
3054 * might already be processed unsuccessfully.
3055 */
3056 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3057 time_event_response,
3058 ARRAY_SIZE(time_event_response),
3059 iwl_mvm_rx_aux_roc, te_data);
3060
3061 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
3062 &aux_roc_req);
3063
3064 if (res) {
3065 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3066 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3067 goto out_clear_te;
3068 }
3069
3070 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3071 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3072 /* should never fail */
3073 WARN_ON_ONCE(res);
3074
3075 if (res) {
3076 out_clear_te:
3077 spin_lock_bh(&mvm->time_event_lock);
3078 iwl_mvm_te_clear_data(mvm, te_data);
3079 spin_unlock_bh(&mvm->time_event_lock);
3080 }
3081
3082 return res;
3083}
3084
8ca151b5
JB		 3085static int iwl_mvm_roc(struct ieee80211_hw *hw,
3086 struct ieee80211_vif *vif,
3087 struct ieee80211_channel *channel,
d339d5ca
IP		 3088 int duration,
3089 enum ieee80211_roc_type type)
8ca151b5
JB		 3090{
3091 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 3092 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 3093 struct cfg80211_chan_def chandef;
31d385ae
IP		 3094 struct iwl_mvm_phy_ctxt *phy_ctxt;
3095 int ret, i;
3096
3097 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3098 duration, type);
8ca151b5 3099
6ed13164
MG		 3100 flush_work(&mvm->roc_done_wk);
3101
a6cc5163
MG		 3102 mutex_lock(&mvm->mutex);
3103
b112889c
AM		 3104 switch (vif->type) {
3105 case NL80211_IFTYPE_STATION:
859d914c
JB		 3106 if (fw_has_capa(&mvm->fw->ucode_capa,
3107 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
5ac6c72e
LC		 3108 /* Use aux roc framework (HS20) */
3109 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3110 vif, duration);
3111 goto out_unlock;
3112 }
3113 IWL_ERR(mvm, "hotspot not supported\n");
3114 ret = -EINVAL;
a6cc5163 3115 goto out_unlock;
b112889c
AM		 3116 case NL80211_IFTYPE_P2P_DEVICE:
3117 /* handle below */
3118 break;
3119 default:
3120 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 3121 ret = -EINVAL;
3122 goto out_unlock;
8ca151b5
JB		 3123 }
3124
31d385ae
IP		 3125 for (i = 0; i < NUM_PHY_CTX; i++) {
3126 phy_ctxt = &mvm->phy_ctxts[i];
3127 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3128 continue;
3129
3130 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3131 /*
3132 * Unbind the P2P_DEVICE from the current PHY context,
3133 * and if the PHY context is not used remove it.
3134 */
3135 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3136 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3137 goto out_unlock;
3138
3139 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3140
3141 /* Bind the P2P_DEVICE to the current PHY Context */
3142 mvmvif->phy_ctxt = phy_ctxt;
3143
3144 ret = iwl_mvm_binding_add_vif(mvm, vif);
3145 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3146 goto out_unlock;
3147
3148 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3149 goto schedule_time_event;
3150 }
3151 }
3152
3153 /* Need to update the PHY context only if the ROC channel changed */
3154 if (channel == mvmvif->phy_ctxt->channel)
3155 goto schedule_time_event;
3156
8ca151b5 3157 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 3158
31d385ae
IP		 3159 /*
3160 * Change the PHY context configuration as it is currently referenced
3161 * only by the P2P Device MAC
3162 */
3163 if (mvmvif->phy_ctxt->ref == 1) {
3164 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3165 &chandef, 1, 1);
3166 if (ret)
3167 goto out_unlock;
3168 } else {
3169 /*
3170 * The PHY context is shared with other MACs. Need to remove the
3171 * P2P Device from the binding, allocate an new PHY context and
3172 * create a new binding
3173 */
3174 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3175 if (!phy_ctxt) {
3176 ret = -ENOSPC;
3177 goto out_unlock;
3178 }
3179
3180 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3181 1, 1);
3182 if (ret) {
3183 IWL_ERR(mvm, "Failed to change PHY context\n");
3184 goto out_unlock;
3185 }
3186
3187 /* Unbind the P2P_DEVICE from the current PHY context */
3188 ret = iwl_mvm_binding_remove_vif(mvm, vif);
3189 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3190 goto out_unlock;
3191
3192 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3193
3194 /* Bind the P2P_DEVICE to the new allocated PHY context */
3195 mvmvif->phy_ctxt = phy_ctxt;
3196
3197 ret = iwl_mvm_binding_add_vif(mvm, vif);
3198 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3199 goto out_unlock;
3200
3201 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3202 }
3203
3204schedule_time_event:
8ca151b5 3205 /* Schedule the time events */
e635c797 3206 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 3207
31d385ae 3208out_unlock:
8ca151b5
JB		 3209 mutex_unlock(&mvm->mutex);
3210 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 3211 return ret;
3212}
3213
3214static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
3215{
3216 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3217
3218 IWL_DEBUG_MAC80211(mvm, "enter\n");
3219
3220 mutex_lock(&mvm->mutex);
bf5da87f 3221 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 3222 mutex_unlock(&mvm->mutex);
3223
3224 IWL_DEBUG_MAC80211(mvm, "leave\n");
3225 return 0;
3226}
3227
b08c1d97
LC		 3228static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
3229 struct ieee80211_chanctx_conf *ctx)
8ca151b5 3230{
fe0f2de3
IP		 3231 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3232 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 3233 int ret;
3234
b08c1d97
LC		 3235 lockdep_assert_held(&mvm->mutex);
3236
53a9d61e 3237 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 3238
fe0f2de3
IP		 3239 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3240 if (!phy_ctxt) {
3241 ret = -ENOSPC;
3242 goto out;
3243 }
8ca151b5 3244
dcbc3e1a 3245 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3246 ctx->rx_chains_static,
3247 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3248 if (ret) {
3249 IWL_ERR(mvm, "Failed to add PHY context\n");
3250 goto out;
3251 }
3252
53a9d61e 3253 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3254 *phy_ctxt_id = phy_ctxt->id;
3255out:
b08c1d97
LC		 3256 return ret;
3257}
3258
3259static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3260 struct ieee80211_chanctx_conf *ctx)
3261{
3262 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3263 int ret;
3264
3265 mutex_lock(&mvm->mutex);
3266 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3267 mutex_unlock(&mvm->mutex);
b08c1d97 3268
8ca151b5
JB		 3269 return ret;
3270}
3271
b08c1d97
LC		 3272static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3273 struct ieee80211_chanctx_conf *ctx)
3274{
3275 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3276 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3277
3278 lockdep_assert_held(&mvm->mutex);
3279
3280 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3281}
3282
8ca151b5
JB		 3283static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3284 struct ieee80211_chanctx_conf *ctx)
3285{
3286 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3287
3288 mutex_lock(&mvm->mutex);
b08c1d97 3289 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3290 mutex_unlock(&mvm->mutex);
3291}
3292
3293static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3294 struct ieee80211_chanctx_conf *ctx,
3295 u32 changed)
3296{
3297 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3298 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3299 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3300
31d385ae
IP		 3301 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3302 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3303 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3304 IEEE80211_CHANCTX_CHANGE_RADAR |
3305 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3306 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3307 phy_ctxt->ref, changed))
3308 return;
3309
8ca151b5 3310 mutex_lock(&mvm->mutex);
4d66449a 3311 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3312 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3313 ctx->rx_chains_static,
3314 ctx->rx_chains_dynamic);
3315 mutex_unlock(&mvm->mutex);
3316}
3317
b08c1d97
LC		 3318static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3319 struct ieee80211_vif *vif,
f0c97783
LC		 3320 struct ieee80211_chanctx_conf *ctx,
3321 bool switching_chanctx)
8ca151b5 3322{
fe0f2de3
IP		 3323 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3324 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3325 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3326 int ret;
3327
b08c1d97 3328 lockdep_assert_held(&mvm->mutex);
8ca151b5 3329
fe0f2de3 3330 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3331
3332 switch (vif->type) {
3333 case NL80211_IFTYPE_AP:
4741dd04
LC		 3334 /* only needed if we're switching chanctx (i.e. during CSA) */
3335 if (switching_chanctx) {
bd3398e2
AO		 3336 mvmvif->ap_ibss_active = true;
3337 break;
3338 }
5023d966 3339 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3340 /*
3341 * The AP binding flow is handled as part of the start_ap flow
5023d966 3342 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3343 */
3344 ret = 0;
b08c1d97 3345 goto out;
8ca151b5 3346 case NL80211_IFTYPE_STATION:
2533edce 3347 break;
8ca151b5 3348 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3349 /* always disable PS when a monitor interface is active */
3350 mvmvif->ps_disabled = true;
8ca151b5
JB		 3351 break;
3352 default:
3353 ret = -EINVAL;
b08c1d97 3354 goto out;
8ca151b5
JB		 3355 }
3356
3357 ret = iwl_mvm_binding_add_vif(mvm, vif);
3358 if (ret)
b08c1d97 3359 goto out;
8ca151b5
JB		 3360
3361 /*
92d85562
AB		 3362 * Power state must be updated before quotas,
3363 * otherwise fw will complain.
3364 */
999609f1 3365 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3366
3367 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3368 * interfaces. For the other types, the bss_info changed flow
3369 * will handle quota settings.
3370 */
3371 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3372 mvmvif->monitor_active = true;
7754ae79 3373 ret = iwl_mvm_update_quotas(mvm, false, NULL);
8ca151b5
JB		 3374 if (ret)
3375 goto out_remove_binding;
3376 }
3377
bd3398e2 3378 /* Handle binding during CSA */
a57c688d 3379 if (vif->type == NL80211_IFTYPE_AP) {
7754ae79 3380 iwl_mvm_update_quotas(mvm, false, NULL);
3dfd3a97 3381 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3382 }
3383
4741dd04 3384 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3385 u32 duration = 2 * vif->bss_conf.beacon_int;
3386
3387 /* iwl_mvm_protect_session() reads directly from the
3388 * device (the system time), so make sure it is
3389 * available.
3390 */
3391 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3392 if (ret)
3393 goto out_remove_binding;
3394
3395 /* Protect the session to make sure we hear the first
3396 * beacon on the new channel.
3397 */
3398 iwl_mvm_protect_session(mvm, vif, duration, duration,
3399 vif->bss_conf.beacon_int / 2,
3400 true);
3401
3402 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3403
7754ae79 3404 iwl_mvm_update_quotas(mvm, false, NULL);
0ce04ce7
LC		 3405 }
3406
b08c1d97 3407 goto out;
8ca151b5 3408
b08c1d97 3409out_remove_binding:
8ca151b5 3410 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3411 iwl_mvm_power_update_mac(mvm);
b08c1d97 3412out:
8ca151b5
JB		 3413 if (ret)
3414 mvmvif->phy_ctxt = NULL;
3415 return ret;
3416}
b08c1d97
LC		 3417static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3418 struct ieee80211_vif *vif,
3419 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3420{
3421 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3422 int ret;
8ca151b5
JB		 3423
3424 mutex_lock(&mvm->mutex);
f0c97783 3425 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3426 mutex_unlock(&mvm->mutex);
3427
3428 return ret;
3429}
3430
3431static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3432 struct ieee80211_vif *vif,
f0c97783
LC		 3433 struct ieee80211_chanctx_conf *ctx,
3434 bool switching_chanctx)
b08c1d97
LC		 3435{
3436 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3437 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3438
3439 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3440
3441 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3442
8ca151b5 3443 switch (vif->type) {
5023d966 3444 case NL80211_IFTYPE_ADHOC:
b08c1d97 3445 goto out;
8ca151b5 3446 case NL80211_IFTYPE_MONITOR:
1e1391ca 3447 mvmvif->monitor_active = false;
2533edce 3448 mvmvif->ps_disabled = false;
8ca151b5 3449 break;
bd3398e2
AO		 3450 case NL80211_IFTYPE_AP:
3451 /* This part is triggered only during CSA */
4741dd04 3452 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3453 goto out;
bd3398e2 3454
7ef0aab6
AO		 3455 mvmvif->csa_countdown = false;
3456
003e5236
AO		 3457 /* Set CS bit on all the stations */
3458 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3459
3460 /* Save blocked iface, the timeout is set on the next beacon */
3461 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3462
bd3398e2 3463 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3464 break;
3465 case NL80211_IFTYPE_STATION:
3466 if (!switching_chanctx)
3467 break;
3468
3469 disabled_vif = vif;
3470
3dfd3a97 3471 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3472 break;
8ca151b5
JB		 3473 default:
3474 break;
3475 }
3476
7754ae79 3477 iwl_mvm_update_quotas(mvm, false, disabled_vif);
1e1391ca 3478 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3479
b08c1d97 3480out:
a11e144e 3481 mvmvif->phy_ctxt = NULL;
999609f1 3482 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3483}
3484
3485static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3486 struct ieee80211_vif *vif,
3487 struct ieee80211_chanctx_conf *ctx)
3488{
3489 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3490
3491 mutex_lock(&mvm->mutex);
f0c97783 3492 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3493 mutex_unlock(&mvm->mutex);
3494}
3495
50cc9574
LC		 3496static int
3497iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3498 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3499{
b08c1d97
LC		 3500 int ret;
3501
b08c1d97 3502 mutex_lock(&mvm->mutex);
f0c97783 3503 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3504 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3505
3506 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3507 if (ret) {
3508 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3509 goto out_reassign;
3510 }
3511
f0c97783
LC		 3512 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3513 true);
b08c1d97
LC		 3514 if (ret) {
3515 IWL_ERR(mvm,
3516 "failed to assign new_ctx during channel switch\n");
3517 goto out_remove;
3518 }
3519
f697267f
AN		 3520 /* we don't support TDLS during DCM - can be caused by channel switch */
3521 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3522 iwl_mvm_teardown_tdls_peers(mvm);
3523
b08c1d97
LC		 3524 goto out;
3525
3526out_remove:
3527 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3528
3529out_reassign:
6fd1fb63 3530 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3531 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3532 goto out_restart;
3533 }
3534
6fd1fb63
LC		 3535 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3536 true)) {
b08c1d97
LC		 3537 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3538 goto out_restart;
3539 }
3540
3541 goto out;
3542
3543out_restart:
3544 /* things keep failing, better restart the hw */
3545 iwl_mvm_nic_restart(mvm, false);
3546
3547out:
3548 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3549
3550 return ret;
3551}
3552
48a256e8
LC		 3553static int
3554iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3555 struct ieee80211_vif_chanctx_switch *vifs)
3556{
3557 int ret;
3558
3559 mutex_lock(&mvm->mutex);
3560 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3561
3562 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3563 true);
3564 if (ret) {
3565 IWL_ERR(mvm,
3566 "failed to assign new_ctx during channel switch\n");
3567 goto out_reassign;
3568 }
3569
3570 goto out;
3571
3572out_reassign:
3573 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3574 true)) {
3575 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3576 goto out_restart;
3577 }
3578
3579 goto out;
3580
3581out_restart:
3582 /* things keep failing, better restart the hw */
3583 iwl_mvm_nic_restart(mvm, false);
3584
3585out:
3586 mutex_unlock(&mvm->mutex);
3587
3588 return ret;
3589}
3590
50cc9574
LC		 3591static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3592 struct ieee80211_vif_chanctx_switch *vifs,
3593 int n_vifs,
3594 enum ieee80211_chanctx_switch_mode mode)
3595{
3596 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3597 int ret;
3598
3599 /* we only support a single-vif right now */
3600 if (n_vifs > 1)
3601 return -EOPNOTSUPP;
3602
3603 switch (mode) {
3604 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3605 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3606 break;
3607 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3608 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3609 break;
3610 default:
3611 ret = -EOPNOTSUPP;
3612 break;
3613 }
3614
b08c1d97
LC		 3615 return ret;
3616}
3617
8ca151b5
JB		 3618static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3619 struct ieee80211_sta *sta,
3620 bool set)
3621{
3622 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3623 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3624
3625 if (!mvm_sta || !mvm_sta->vif) {
3626 IWL_ERR(mvm, "Station is not associated to a vif\n");
3627 return -EINVAL;
3628 }
3629
3630 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3631}
3632
507cadf2
DS		 3633#ifdef CONFIG_NL80211_TESTMODE
3634static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3635 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3636 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3637 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3638};
3639
3640static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3641 struct ieee80211_vif *vif,
3642 void *data, int len)
3643{
3644 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3645 int err;
3646 u32 noa_duration;
3647
3648 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3649 if (err)
3650 return err;
3651
3652 if (!tb[IWL_MVM_TM_ATTR_CMD])
3653 return -EINVAL;
3654
3655 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3656 case IWL_MVM_TM_CMD_SET_NOA:
3657 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3658 !vif->bss_conf.enable_beacon ||
3659 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3660 return -EINVAL;
3661
3662 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3663 if (noa_duration >= vif->bss_conf.beacon_int)
3664 return -EINVAL;
3665
3666 mvm->noa_duration = noa_duration;
3667 mvm->noa_vif = vif;
3668
7754ae79 3669 return iwl_mvm_update_quotas(mvm, false, NULL);
f6c6ad42
JB		 3670 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3671 /* must be associated client vif - ignore authorized */
3672 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3673 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3674 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3675 return -EINVAL;
3676
3677 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3678 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3679 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3680 }
3681
3682 return -EOPNOTSUPP;
3683}
3684
3685static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3686 struct ieee80211_vif *vif,
3687 void *data, int len)
3688{
3689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3690 int err;
3691
3692 mutex_lock(&mvm->mutex);
3693 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3694 mutex_unlock(&mvm->mutex);
3695
3696 return err;
3697}
3698#endif
3699
622e3f9b
LC		 3700static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3701 struct ieee80211_vif *vif,
3702 struct ieee80211_channel_switch *chsw)
3703{
3704 /* By implementing this operation, we prevent mac80211 from
3705 * starting its own channel switch timer, so that we can call
3706 * ieee80211_chswitch_done() ourselves at the right time
3707 * (which is when the absence time event starts).
3708 */
3709
3710 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3711 "dummy channel switch op\n");
3712}
3713
f028905c
LC		 3714static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3715 struct ieee80211_vif *vif,
3716 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3717{
3718 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3719 struct ieee80211_vif *csa_vif;
f6c34820 3720 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3721 u32 apply_time;
f028905c 3722 int ret;
bd3398e2
AO		 3723
3724 mutex_lock(&mvm->mutex);
664322fa 3725
81d62d5a
JB		 3726 mvmvif->csa_failed = false;
3727
6b20d774 3728 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3729 chsw->chandef.center_freq1);
6b20d774 3730
21023b1e 3731 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH);
f35d9c55 3732
6b20d774
LC		 3733 switch (vif->type) {
3734 case NL80211_IFTYPE_AP:
3735 csa_vif =
3736 rcu_dereference_protected(mvm->csa_vif,
3737 lockdep_is_held(&mvm->mutex));
3738 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3739 "Another CSA is already in progress")) {
3740 ret = -EBUSY;
3741 goto out_unlock;
3742 }
3743
3744 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3745
7ef0aab6
AO		 3746 if (WARN_ONCE(mvmvif->csa_countdown,
3747 "Previous CSA countdown didn't complete")) {
3748 ret = -EBUSY;
3749 goto out_unlock;
3750 }
3751
6b20d774 3752 break;
dc88b4ba 3753 case NL80211_IFTYPE_STATION:
4500e133
LC		 3754 /* Schedule the time event to a bit before beacon 1,
3755 * to make sure we're in the new channel when the
3756 * GO/AP arrives.
3757 */
3758 apply_time = chsw->device_timestamp +
3759 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3760 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3761
3762 if (chsw->block_tx)
3763 iwl_mvm_csa_client_absent(mvm, vif);
3764
4500e133 3765 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3766 apply_time);
c6e0a3e0
LC		 3767 if (mvmvif->bf_data.bf_enabled) {
3768 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3769 if (ret)
3770 goto out_unlock;
3771 }
3772
dc88b4ba 3773 break;
6b20d774
LC		 3774 default:
3775 break;
3776 }
bd3398e2 3777
f6c34820
LC		 3778 mvmvif->ps_disabled = true;
3779
3780 ret = iwl_mvm_power_update_ps(mvm);
3781 if (ret)
3782 goto out_unlock;
f028905c 3783
e198f5e7
AN		 3784 /* we won't be on this channel any longer */
3785 iwl_mvm_teardown_tdls_peers(mvm);
3786
bd3398e2
AO		 3787out_unlock:
3788 mutex_unlock(&mvm->mutex);
f028905c
LC		 3789
3790 return ret;
bd3398e2
AO		 3791}
3792
f6c34820
LC		 3793static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3794 struct ieee80211_vif *vif)
3795{
3796 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3797 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3798 int ret;
3799
3800 mutex_lock(&mvm->mutex);
3801
81d62d5a
JB		 3802 if (mvmvif->csa_failed) {
3803 mvmvif->csa_failed = false;
3804 ret = -EIO;
3805 goto out_unlock;
3806 }
3807
a57c688d
LC		 3808 if (vif->type == NL80211_IFTYPE_STATION) {
3809 struct iwl_mvm_sta *mvmsta;
3810
3811 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3812 mvmvif->ap_sta_id);
3813
3814 if (WARN_ON(!mvmsta)) {
3815 ret = -EIO;
3816 goto out_unlock;
3817 }
3818
3819 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3820
3821 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3822
3823 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3824 if (ret)
3825 goto out_unlock;
686e7fe1
LC		 3826
3827 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3828 }
3829
f6c34820
LC		 3830 mvmvif->ps_disabled = false;
3831
3832 ret = iwl_mvm_power_update_ps(mvm);
3833
a57c688d 3834out_unlock:
f6c34820
LC		 3835 mutex_unlock(&mvm->mutex);
3836
3837 return ret;
3838}
3839
c5b0e7c0
EG		 3840static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3841 struct ieee80211_vif *vif, u32 queues, bool drop)
3842{
3843 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3844 struct iwl_mvm_vif *mvmvif;
3845 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3846 struct ieee80211_sta *sta;
3847 int i;
3848 u32 msk = 0;
c5b0e7c0
EG		 3849
3850 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3851 return;
3852
3853 mutex_lock(&mvm->mutex);
3854 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3855
a0f6bf2a
AN		 3856 /* flush the AP-station and all TDLS peers */
3857 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3858 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3859 lockdep_is_held(&mvm->mutex));
3860 if (IS_ERR_OR_NULL(sta))
3861 continue;
3862
3863 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3864 if (mvmsta->vif != vif)
3865 continue;
3866
3867 /* make sure only TDLS peers or the AP are flushed */
3868 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3869
3870 msk |= mvmsta->tfd_queue_msk;
480acbce 3871 }
c5b0e7c0 3872
6d440b25
EG		 3873 if (drop) {
3874 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3875 IWL_ERR(mvm, "flush request fail\n");
3876 mutex_unlock(&mvm->mutex);
3877 } else {
3878 mutex_unlock(&mvm->mutex);
4e6c48e0 3879
6d440b25
EG		 3880 /* this can take a while, and we may need/want other operations
3881 * to succeed while doing this, so do it without the mutex held
3882 */
3883 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3884 }
c5b0e7c0
EG		 3885}
3886
91a8bcde
JB		 3887static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3888 struct survey_info *survey)
3889{
3890 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3891 int ret;
3892
3893 memset(survey, 0, sizeof(*survey));
3894
3895 /* only support global statistics right now */
3896 if (idx != 0)
3897 return -ENOENT;
3898
859d914c 3899 if (fw_has_capa(&mvm->fw->ucode_capa,
91a8bcde
JB		 3900 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3901 return -ENOENT;
3902
3903 mutex_lock(&mvm->mutex);
3904
3905 if (mvm->ucode_loaded) {
33cef925 3906 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3907 if (ret)
3908 goto out;
3909 }
3910
3911 survey->filled = SURVEY_INFO_TIME |
3912 SURVEY_INFO_TIME_RX |
3913 SURVEY_INFO_TIME_TX |
3914 SURVEY_INFO_TIME_SCAN;
3915 survey->time = mvm->accu_radio_stats.on_time_rf +
3916 mvm->radio_stats.on_time_rf;
3917 do_div(survey->time, USEC_PER_MSEC);
3918
3919 survey->time_rx = mvm->accu_radio_stats.rx_time +
3920 mvm->radio_stats.rx_time;
3921 do_div(survey->time_rx, USEC_PER_MSEC);
3922
3923 survey->time_tx = mvm->accu_radio_stats.tx_time +
3924 mvm->radio_stats.tx_time;
3925 do_div(survey->time_tx, USEC_PER_MSEC);
3926
3927 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3928 mvm->radio_stats.on_time_scan;
3929 do_div(survey->time_scan, USEC_PER_MSEC);
3930
10a7c028 3931 ret = 0;
91a8bcde
JB		 3932 out:
3933 mutex_unlock(&mvm->mutex);
3934 return ret;
3935}
3936
33cef925
JB		 3937static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3938 struct ieee80211_vif *vif,
3939 struct ieee80211_sta *sta,
3940 struct station_info *sinfo)
3941{
3942 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3943 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3944 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3945
859d914c
JB		 3946 if (fw_has_capa(&mvm->fw->ucode_capa,
3947 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
33cef925
JB		 3948 return;
3949
3950 /* if beacon filtering isn't on mac80211 does it anyway */
3951 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3952 return;
3953
3954 if (!vif->bss_conf.assoc)
3955 return;
3956
3957 mutex_lock(&mvm->mutex);
3958
3959 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3960 goto unlock;
3961
3962 if (iwl_mvm_request_statistics(mvm, false))
3963 goto unlock;
3964
3965 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3966 mvmvif->beacon_stats.accu_num_beacons;
3967 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3968 if (mvmvif->beacon_stats.avg_signal) {
3969 /* firmware only reports a value after RXing a few beacons */
3970 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3971 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3972 }
3973 unlock:
3974 mutex_unlock(&mvm->mutex);
3975}
3976
4203263d
EG		 3977static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
3978 struct ieee80211_vif *vif,
3979 const struct ieee80211_event *event)
d42f5350 3980{
5d4f929e 3981#define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
d42f5350
EG		 3982 do { \
3983 if ((_cnt) && --(_cnt)) \
3984 break; \
5d4f929e 3985 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
d42f5350
EG		 3986 } while (0)
3987
d42f5350
EG		 3988 struct iwl_fw_dbg_trigger_tlv *trig;
3989 struct iwl_fw_dbg_trigger_mlme *trig_mlme;
d42f5350
EG		 3990
3991 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME))
3992 return;
3993
d42f5350
EG		 3994 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME);
3995 trig_mlme = (void *)trig->data;
3996 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
3997 return;
3998
d42f5350
EG		 3999 if (event->u.mlme.data == ASSOC_EVENT) {
4000 if (event->u.mlme.status == MLME_DENIED)
4001 CHECK_MLME_TRIGGER(mvm, trig, buf,
4002 trig_mlme->stop_assoc_denied,
4003 "DENIED ASSOC: reason %d",
4004 event->u.mlme.reason);
4005 else if (event->u.mlme.status == MLME_TIMEOUT)
4006 CHECK_MLME_TRIGGER(mvm, trig, buf,
4007 trig_mlme->stop_assoc_timeout,
4008 "ASSOC TIMEOUT");
4009 } else if (event->u.mlme.data == AUTH_EVENT) {
4010 if (event->u.mlme.status == MLME_DENIED)
4011 CHECK_MLME_TRIGGER(mvm, trig, buf,
4012 trig_mlme->stop_auth_denied,
4013 "DENIED AUTH: reason %d",
4014 event->u.mlme.reason);
4015 else if (event->u.mlme.status == MLME_TIMEOUT)
4016 CHECK_MLME_TRIGGER(mvm, trig, buf,
4017 trig_mlme->stop_auth_timeout,
4018 "AUTH TIMEOUT");
4019 } else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
4020 CHECK_MLME_TRIGGER(mvm, trig, buf,
4021 trig_mlme->stop_rx_deauth,
4022 "DEAUTH RX %d", event->u.mlme.reason);
4023 } else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
4024 CHECK_MLME_TRIGGER(mvm, trig, buf,
4025 trig_mlme->stop_tx_deauth,
4026 "DEAUTH TX %d", event->u.mlme.reason);
4027 }
4028#undef CHECK_MLME_TRIGGER
4029}
4030
4203263d
EG		 4031static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
4032 struct ieee80211_vif *vif,
4033 const struct ieee80211_event *event)
4034{
4035 struct iwl_fw_dbg_trigger_tlv *trig;
4036 struct iwl_fw_dbg_trigger_ba *ba_trig;
4037
4038 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4039 return;
4040
4041 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4042 ba_trig = (void *)trig->data;
4043 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4044 return;
4045
4046 if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
4047 return;
4048
4049 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4050 "BAR received from %pM, tid %d, ssn %d",
4051 event->u.ba.sta->addr, event->u.ba.tid,
4052 event->u.ba.ssn);
4053}
4054
4055static void
4056iwl_mvm_event_frame_timeout_callback(struct iwl_mvm *mvm,
4057 struct ieee80211_vif *vif,
4058 const struct ieee80211_event *event)
4059{
4060 struct iwl_fw_dbg_trigger_tlv *trig;
4061 struct iwl_fw_dbg_trigger_ba *ba_trig;
4062
4063 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_BA))
4064 return;
4065
4066 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_BA);
4067 ba_trig = (void *)trig->data;
4068 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig))
4069 return;
4070
4071 if (!(le16_to_cpu(ba_trig->frame_timeout) & BIT(event->u.ba.tid)))
4072 return;
4073
4074 iwl_mvm_fw_dbg_collect_trig(mvm, trig,
4075 "Frame from %pM timed out, tid %d",
4076 event->u.ba.sta->addr, event->u.ba.tid);
4077}
4078
4079static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
4080 struct ieee80211_vif *vif,
4081 const struct ieee80211_event *event)
4082{
4083 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4084
4085 switch (event->type) {
4086 case MLME_EVENT:
4087 iwl_mvm_event_mlme_callback(mvm, vif, event);
4088 break;
4089 case BAR_RX_EVENT:
4090 iwl_mvm_event_bar_rx_callback(mvm, vif, event);
4091 break;
4092 case BA_FRAME_TIMEOUT:
4093 iwl_mvm_event_frame_timeout_callback(mvm, vif, event);
4094 break;
4095 default:
4096 break;
4097 }
4098}
4099
e5209263 4100const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 4101 .tx = iwl_mvm_mac_tx,
4102 .ampdu_action = iwl_mvm_mac_ampdu_action,
4103 .start = iwl_mvm_mac_start,
cf2c92d8 4104 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 4105 .stop = iwl_mvm_mac_stop,
4106 .add_interface = iwl_mvm_mac_add_interface,
4107 .remove_interface = iwl_mvm_mac_remove_interface,
4108 .config = iwl_mvm_mac_config,
e59647ea 4109 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 4110 .configure_filter = iwl_mvm_configure_filter,
4111 .bss_info_changed = iwl_mvm_bss_info_changed,
4112 .hw_scan = iwl_mvm_mac_hw_scan,
4113 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 4114 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 4115 .sta_state = iwl_mvm_mac_sta_state,
4116 .sta_notify = iwl_mvm_mac_sta_notify,
4117 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 4118 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 4119 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 4120 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 4121 .conf_tx = iwl_mvm_mac_conf_tx,
4122 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 4123 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 4124 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 4125 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
4126 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 4127 .set_key = iwl_mvm_mac_set_key,
4128 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
4129 .remain_on_channel = iwl_mvm_roc,
4130 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 4131 .add_chanctx = iwl_mvm_add_chanctx,
4132 .remove_chanctx = iwl_mvm_remove_chanctx,
4133 .change_chanctx = iwl_mvm_change_chanctx,
4134 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
4135 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 4136 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 4137
5023d966
JB		 4138 .start_ap = iwl_mvm_start_ap_ibss,
4139 .stop_ap = iwl_mvm_stop_ap_ibss,
4140 .join_ibss = iwl_mvm_start_ap_ibss,
4141 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 4142
4143 .set_tim = iwl_mvm_set_tim,
4144
622e3f9b 4145 .channel_switch = iwl_mvm_channel_switch,
f028905c 4146 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 4147 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 4148
1d3c3f63
AN		 4149 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
4150 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
4151 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
4152
d42f5350
EG		 4153 .event_callback = iwl_mvm_mac_event_callback,
4154
507cadf2
DS		 4155 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
4156
8ca151b5
JB		 4157#ifdef CONFIG_PM_SLEEP
4158 /* look at d3.c */
4159 .suspend = iwl_mvm_suspend,
4160 .resume = iwl_mvm_resume,
4161 .set_wakeup = iwl_mvm_set_wakeup,
4162 .set_rekey_data = iwl_mvm_set_rekey_data,
4163#if IS_ENABLED(CONFIG_IPV6)
4164 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
4165#endif
4166 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
4167#endif
91a8bcde 4168 .get_survey = iwl_mvm_mac_get_survey,
33cef925 4169 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 4170};
Linux kernel - Deliverables
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