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iwlwifi: don't declare support for 5ghz if not supported
[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"
83#include "fw-api-scan.h"
84#include "iwl-phy-db.h"
507cadf2 85#include "testmode.h"
655e6d6d
EG		 86#include "iwl-fw-error-dump.h"
87#include "iwl-prph.h"
363039be 88#include "iwl-csr.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
8ca151b5
JB		 304int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
305{
306 struct ieee80211_hw *hw = mvm->hw;
831e85f3 307 int num_mac, ret, i;
8ca151b5
JB		 308
309 /* Tell mac80211 our characteristics */
310 hw->flags = IEEE80211_HW_SIGNAL_DBM |
311 IEEE80211_HW_SPECTRUM_MGMT |
312 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
313 IEEE80211_HW_QUEUE_CONTROL |
314 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 315 IEEE80211_HW_SUPPORTS_PS |
316 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 317 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 318 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 319 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 320 IEEE80211_HW_CHANCTX_STA_CSA |
321 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 322
19e737c9 323 hw->queues = mvm->first_agg_queue;
398e8c6c 324 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 325 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
326 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
339b3086
ES		 327 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
328 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
8ca151b5 329 hw->rate_control_algorithm = "iwl-mvm-rs";
848955cc
JB		 330 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
331 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
8ca151b5
JB		 332
333 /*
334 * Enable 11w if advertised by firmware and software crypto
335 * is not enabled (as the firmware will interpret some mgmt
336 * packets, so enabling it with software crypto isn't safe)
337 */
338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
339 !iwlwifi_mod_params.sw_crypto)
340 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
341
1f940386
LC		 342 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
343 hw->wiphy->features |=
344 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
345 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
fb98be5e 346
8ca151b5
JB		 347 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
348 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 349 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 350
351 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 352 BIT(NL80211_IFTYPE_P2P_CLIENT) |
353 BIT(NL80211_IFTYPE_AP) |
354 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 355 BIT(NL80211_IFTYPE_P2P_DEVICE) |
356 BIT(NL80211_IFTYPE_ADHOC);
5023d966 357
a2f73b6c
LR		 358 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
359 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
360 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 361
3e56eadf
JB		 362 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
363 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
364
94bbed72 365 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
bd3398e2 366
8ca151b5
JB		 367 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
368 hw->wiphy->n_iface_combinations =
369 ARRAY_SIZE(iwl_mvm_iface_combinations);
370
c451e6d4 371 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5 372 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
f1a68542
EG		 373 /* we can compensate an offset of up to 3 channels = 15 MHz */
374 hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
8ca151b5
JB		 375
376 /* Extract MAC address */
377 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
378 hw->wiphy->addresses = mvm->addresses;
379 hw->wiphy->n_addresses = 1;
831e85f3
IP		 380
381 /* Extract additional MAC addresses if available */
382 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
383 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
384
385 for (i = 1; i < num_mac; i++) {
386 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 387 ETH_ALEN);
831e85f3 388 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 389 hw->wiphy->n_addresses++;
390 }
391
fe0f2de3
IP		 392 iwl_mvm_reset_phy_ctxts(mvm);
393
48849a41 394 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 395
8ca151b5
JB		 396 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
397
398 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
399 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
400 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
3d44eebf 401 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels) {
8ca151b5
JB		 402 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
403 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
404
3d44eebf
ES		 405 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER)
406 hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |=
407 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
408 }
409
8ca151b5
JB		 410 hw->wiphy->hw_version = mvm->trans->hw_id;
411
ade50652 412 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 413 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
414 else
415 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
416
6efaaf33
EG		 417 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
418 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
419 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
420 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
421 /* we create the 802.11 header and zero length SSID IE. */
422 hw->wiphy->max_sched_scan_ie_len =
423 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
424 }
35a000b7 425
8ca151b5 426 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 427 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 428 NL80211_FEATURE_P2P_GO_OPPPS |
429 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 430 NL80211_FEATURE_STATIC_SMPS |
431 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 432
f1daa00e
AO		 433 if (mvm->fw->ucode_capa.capa[0] &
434 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
435 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 436 if (mvm->fw->ucode_capa.capa[0] &
437 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
438 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 439
73897bd1
AO		 440 if (mvm->fw->ucode_capa.capa[0] &
441 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
442 hw->wiphy->features |=
443 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
444
445 if (mvm->fw->ucode_capa.capa[0] &
446 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
447 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
448
8ca151b5
JB		 449 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
450
e36e5433 451 /* currently FW API supports only one optional cipher scheme */
9ddca860 452 if (mvm->fw->cs[0].cipher) {
e36e5433 453 mvm->hw->n_cipher_schemes = 1;
9ddca860 454 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 455 }
456
8ca151b5 457#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 458 if (iwl_mvm_is_d0i3_supported(mvm) &&
459 device_can_wakeup(mvm->trans->dev)) {
460 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
461 hw->wiphy->wowlan = &mvm->wowlan;
91742449
EP		 462 }
463
464 if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 465 mvm->trans->ops->d3_suspend &&
466 mvm->trans->ops->d3_resume &&
467 device_can_wakeup(mvm->trans->dev)) {
91742449
EP		 468 mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
469 WIPHY_WOWLAN_DISCONNECT |
470 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
471 WIPHY_WOWLAN_RFKILL_RELEASE |
472 WIPHY_WOWLAN_NET_DETECT;
8ca151b5 473 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 474 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
475 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
476 WIPHY_WOWLAN_4WAY_HANDSHAKE;
477
478 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
479 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
480 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
c55385f5 481 mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
964dc9e2
JB		 482 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
483 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 484 }
485#endif
486
77736923
EP		 487#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
488 /* assign default bcast filtering configuration */
489 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
490#endif
491
8ca151b5
JB		 492 ret = iwl_mvm_leds_init(mvm);
493 if (ret)
494 return ret;
495
d8f1c515
AN		 496 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
497 IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
498 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
499 }
500
1d3c3f63
AN		 501 if (mvm->fw->ucode_capa.capa[0] &
502 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
503 IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
504 hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
505 }
506
b7327d89
EG		 507 ret = ieee80211_register_hw(mvm->hw);
508 if (ret)
509 iwl_mvm_leds_exit(mvm);
510
511 return ret;
8ca151b5
JB		 512}
513
b2492501
AN		 514static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
515 struct ieee80211_sta *sta,
516 struct sk_buff *skb)
517{
518 struct iwl_mvm_sta *mvmsta;
519 bool defer = false;
520
521 /*
522 * double check the IN_D0I3 flag both before and after
523 * taking the spinlock, in order to prevent taking
524 * the spinlock when not needed.
525 */
526 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
527 return false;
528
529 spin_lock(&mvm->d0i3_tx_lock);
530 /*
531 * testing the flag again ensures the skb dequeue
532 * loop (on d0i3 exit) hasn't run yet.
533 */
534 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
535 goto out;
536
537 mvmsta = iwl_mvm_sta_from_mac80211(sta);
538 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
539 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
540 goto out;
541
542 __skb_queue_tail(&mvm->d0i3_tx, skb);
543 ieee80211_stop_queues(mvm->hw);
544
545 /* trigger wakeup */
546 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
547 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
548
549 defer = true;
550out:
551 spin_unlock(&mvm->d0i3_tx_lock);
552 return defer;
553}
554
8ca151b5
JB		 555static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
556 struct ieee80211_tx_control *control,
557 struct sk_buff *skb)
558{
559 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 560 struct ieee80211_sta *sta = control->sta;
561 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
562 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 563
9ee718aa
EL		 564 if (iwl_mvm_is_radio_killed(mvm)) {
565 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 566 goto drop;
567 }
568
398e8c6c 569 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 570 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
571 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 572 goto drop;
573
3e56eadf
JB		 574 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
575 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
576 ieee80211_is_mgmt(hdr->frame_control) &&
577 !ieee80211_is_deauth(hdr->frame_control) &&
578 !ieee80211_is_disassoc(hdr->frame_control) &&
579 !ieee80211_is_action(hdr->frame_control)))
580 sta = NULL;
581
582 if (sta) {
b2492501
AN		 583 if (iwl_mvm_defer_tx(mvm, sta, skb))
584 return;
3e56eadf 585 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 586 goto drop;
587 return;
588 }
589
590 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
591 goto drop;
592 return;
593 drop:
594 ieee80211_free_txskb(hw, skb);
595}
596
205e2210
EG		 597static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
598{
599 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
600 return false;
601 return true;
602}
603
604static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
605{
606 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
607 return false;
608 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
609 return true;
610
611 /* enabled by default */
612 return true;
613}
614
8ca151b5
JB		 615static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
616 struct ieee80211_vif *vif,
617 enum ieee80211_ampdu_mlme_action action,
618 struct ieee80211_sta *sta, u16 tid,
619 u16 *ssn, u8 buf_size)
620{
621 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
622 int ret;
b2492501 623 bool tx_agg_ref = false;
8ca151b5
JB		 624
625 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
626 sta->addr, tid, action);
627
628 if (!(mvm->nvm_data->sku_cap_11n_enable))
629 return -EACCES;
630
b2492501 631 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 632 switch (action) {
633 case IEEE80211_AMPDU_TX_START:
634 case IEEE80211_AMPDU_TX_STOP_CONT:
635 case IEEE80211_AMPDU_TX_STOP_FLUSH:
636 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
637 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 638 /*
9256c205
EP		 639 * for tx start, wait synchronously until D0i3 exit to
640 * get the correct sequence number for the tid.
641 * additionally, some other ampdu actions use direct
642 * target access, which is not handled automatically
643 * by the trans layer (unlike commands), so wait for
644 * d0i3 exit in these cases as well.
b2492501 645 */
d40fc489
GG		 646 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
647 if (ret)
648 return ret;
649
650 tx_agg_ref = true;
9256c205
EP		 651 break;
652 default:
653 break;
b2492501
AN		 654 }
655
8ca151b5
JB		 656 mutex_lock(&mvm->mutex);
657
658 switch (action) {
659 case IEEE80211_AMPDU_RX_START:
205e2210 660 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 661 ret = -EINVAL;
662 break;
663 }
664 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
665 break;
666 case IEEE80211_AMPDU_RX_STOP:
667 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
668 break;
669 case IEEE80211_AMPDU_TX_START:
205e2210 670 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 671 ret = -EINVAL;
672 break;
673 }
8ca151b5
JB		 674 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
675 break;
676 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 677 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
678 break;
8ca151b5
JB		 679 case IEEE80211_AMPDU_TX_STOP_FLUSH:
680 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 681 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 682 break;
683 case IEEE80211_AMPDU_TX_OPERATIONAL:
684 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
685 break;
686 default:
687 WARN_ON_ONCE(1);
688 ret = -EINVAL;
689 break;
690 }
691 mutex_unlock(&mvm->mutex);
692
b2492501
AN		 693 /*
694 * If the tid is marked as started, we won't use it for offloaded
695 * traffic on the next D0i3 entry. It's safe to unref.
696 */
697 if (tx_agg_ref)
698 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
699
8ca151b5
JB		 700 return ret;
701}
702
703static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
704 struct ieee80211_vif *vif)
705{
706 struct iwl_mvm *mvm = data;
707 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
708
709 mvmvif->uploaded = false;
710 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
711
8ca151b5
JB		 712 spin_lock_bh(&mvm->time_event_lock);
713 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
714 spin_unlock_bh(&mvm->time_event_lock);
715
fe0f2de3 716 mvmvif->phy_ctxt = NULL;
8a275bad 717 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 718}
719
aadede6e
JB		 720static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
721 const void *data, size_t datalen)
722{
723 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
724 ssize_t bytes_read;
725 ssize_t bytes_read_trans;
726
727 if (offset < dump_ptrs->op_mode_len) {
728 bytes_read = min_t(ssize_t, count,
729 dump_ptrs->op_mode_len - offset);
730 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
731 bytes_read);
732 offset += bytes_read;
733 count -= bytes_read;
734
735 if (count == 0)
736 return bytes_read;
737 } else {
738 bytes_read = 0;
739 }
740
741 if (!dump_ptrs->trans_ptr)
742 return bytes_read;
743
744 offset -= dump_ptrs->op_mode_len;
745 bytes_read_trans = min_t(ssize_t, count,
746 dump_ptrs->trans_ptr->len - offset);
747 memcpy(buffer + bytes_read,
748 (u8 *)dump_ptrs->trans_ptr->data + offset,
749 bytes_read_trans);
750
751 return bytes_read + bytes_read_trans;
752}
753
754static void iwl_mvm_free_coredump(const void *data)
755{
756 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
757
758 vfree(fw_error_dump->op_mode_ptr);
759 vfree(fw_error_dump->trans_ptr);
760 kfree(fw_error_dump);
761}
762
04fd2c28
LK		 763static void iwl_mvm_dump_fifos(struct iwl_mvm *mvm,
764 struct iwl_fw_error_dump_data **dump_data)
765{
766 struct iwl_fw_error_dump_fifo *fifo_hdr;
767 u32 *fifo_data;
768 u32 fifo_len;
769 unsigned long flags;
770 int i, j;
771
772 if (!iwl_trans_grab_nic_access(mvm->trans, false, &flags))
773 return;
774
775 /* Pull RXF data from all RXFs */
776 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.rxfifo_size); i++) {
777 /*
778 * Keep aside the additional offset that might be needed for
779 * next RXF
780 */
781 u32 offset_diff = RXF_DIFF_FROM_PREV * i;
782
783 fifo_hdr = (void *)(*dump_data)->data;
784 fifo_data = (void *)fifo_hdr->data;
785 fifo_len = mvm->shared_mem_cfg.rxfifo_size[i];
786
787 /* No need to try to read the data if the length is 0 */
788 if (fifo_len == 0)
789 continue;
790
791 /* Add a TLV for the RXF */
792 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
793 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
794
795 fifo_hdr->fifo_num = cpu_to_le32(i);
796 fifo_hdr->available_bytes =
797 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
798 RXF_RD_D_SPACE +
799 offset_diff));
800 fifo_hdr->wr_ptr =
801 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
802 RXF_RD_WR_PTR +
803 offset_diff));
804 fifo_hdr->rd_ptr =
805 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
806 RXF_RD_RD_PTR +
807 offset_diff));
808 fifo_hdr->fence_ptr =
809 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
810 RXF_RD_FENCE_PTR +
811 offset_diff));
812 fifo_hdr->fence_mode =
813 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
814 RXF_SET_FENCE_MODE +
815 offset_diff));
816
817 /* Lock fence */
818 iwl_trans_write_prph(mvm->trans,
819 RXF_SET_FENCE_MODE + offset_diff, 0x1);
820 /* Set fence pointer to the same place like WR pointer */
821 iwl_trans_write_prph(mvm->trans,
822 RXF_LD_WR2FENCE + offset_diff, 0x1);
823 /* Set fence offset */
824 iwl_trans_write_prph(mvm->trans,
825 RXF_LD_FENCE_OFFSET_ADDR + offset_diff,
826 0x0);
827
828 /* Read FIFO */
829 fifo_len /= sizeof(u32); /* Size in DWORDS */
830 for (j = 0; j < fifo_len; j++)
831 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
832 RXF_FIFO_RD_FENCE_INC +
833 offset_diff);
834 *dump_data = iwl_fw_error_next_data(*dump_data);
835 }
836
837 /* Pull TXF data from all TXFs */
838 for (i = 0; i < ARRAY_SIZE(mvm->shared_mem_cfg.txfifo_size); i++) {
839 /* Mark the number of TXF we're pulling now */
840 iwl_trans_write_prph(mvm->trans, TXF_LARC_NUM, i);
841
842 fifo_hdr = (void *)(*dump_data)->data;
843 fifo_data = (void *)fifo_hdr->data;
844 fifo_len = mvm->shared_mem_cfg.txfifo_size[i];
845
846 /* No need to try to read the data if the length is 0 */
847 if (fifo_len == 0)
848 continue;
849
850 /* Add a TLV for the FIFO */
851 (*dump_data)->type = cpu_to_le32(IWL_FW_ERROR_DUMP_TXF);
852 (*dump_data)->len = cpu_to_le32(fifo_len + sizeof(*fifo_hdr));
853
854 fifo_hdr->fifo_num = cpu_to_le32(i);
855 fifo_hdr->available_bytes =
856 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
857 TXF_FIFO_ITEM_CNT));
858 fifo_hdr->wr_ptr =
859 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
860 TXF_WR_PTR));
861 fifo_hdr->rd_ptr =
862 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
863 TXF_RD_PTR));
864 fifo_hdr->fence_ptr =
865 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
866 TXF_FENCE_PTR));
867 fifo_hdr->fence_mode =
868 cpu_to_le32(iwl_trans_read_prph(mvm->trans,
869 TXF_LOCK_FENCE));
870
871 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
872 iwl_trans_write_prph(mvm->trans, TXF_READ_MODIFY_ADDR,
873 TXF_WR_PTR);
874
875 /* Dummy-read to advance the read pointer to the head */
876 iwl_trans_read_prph(mvm->trans, TXF_READ_MODIFY_DATA);
877
878 /* Read FIFO */
879 fifo_len /= sizeof(u32); /* Size in DWORDS */
880 for (j = 0; j < fifo_len; j++)
881 fifo_data[j] = iwl_trans_read_prph(mvm->trans,
882 TXF_READ_MODIFY_DATA);
883 *dump_data = iwl_fw_error_next_data(*dump_data);
884 }
885
886 iwl_trans_release_nic_access(mvm->trans, &flags);
887}
888
b6eaa45a
EG		 889void iwl_mvm_free_fw_dump_desc(struct iwl_mvm *mvm)
890{
891 if (mvm->fw_dump_desc == &iwl_mvm_dump_desc_assert ||
892 !mvm->fw_dump_desc)
893 return;
894
895 kfree(mvm->fw_dump_desc);
896 mvm->fw_dump_desc = NULL;
897}
898
4bfa47f3 899void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 900{
901 struct iwl_fw_error_dump_file *dump_file;
902 struct iwl_fw_error_dump_data *dump_data;
903 struct iwl_fw_error_dump_info *dump_info;
a549b296 904 struct iwl_fw_error_dump_mem *dump_mem;
b6eaa45a 905 struct iwl_fw_error_dump_trigger_desc *dump_trig;
48eb7b34 906 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d 907 u32 sram_len, sram_ofs;
04fd2c28 908 u32 file_len, fifo_data_len = 0;
addfaada 909 u32 smem_len = mvm->cfg->smem_len;
86138324 910 u32 sram2_len = mvm->cfg->dccm2_len;
655e6d6d
EG		 911
912 lockdep_assert_held(&mvm->mutex);
913
addfaada 914 /* W/A for 8000 HW family A-step */
86138324
IY		 915 if (mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
916 CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP) {
917 if (smem_len)
918 smem_len = 0x38000;
919
920 if (sram2_len)
921 sram2_len = 0x10000;
922 }
addfaada 923
aadede6e 924 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 925 if (!fw_error_dump)
926 return;
927
f53bf4c7
LK		 928 /* SRAM - include stack CCM if driver knows the values for it */
929 if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
930 const struct fw_img *img;
931
932 img = &mvm->fw->img[mvm->cur_ucode];
933 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
934 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
935 } else {
936 sram_ofs = mvm->cfg->dccm_offset;
937 sram_len = mvm->cfg->dccm_len;
938 }
655e6d6d 939
04fd2c28
LK		 940 /* reading RXF/TXF sizes */
941 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status)) {
942 struct iwl_mvm_shared_mem_cfg *mem_cfg = &mvm->shared_mem_cfg;
943 int i;
944
945 fifo_data_len = 0;
946
947 /* Count RXF size */
948 for (i = 0; i < ARRAY_SIZE(mem_cfg->rxfifo_size); i++) {
949 if (!mem_cfg->rxfifo_size[i])
950 continue;
951
952 /* Add header info */
953 fifo_data_len += mem_cfg->rxfifo_size[i] +
954 sizeof(*dump_data) +
955 sizeof(struct iwl_fw_error_dump_fifo);
956 }
957
958 for (i = 0; i < ARRAY_SIZE(mem_cfg->txfifo_size); i++) {
959 if (!mem_cfg->txfifo_size[i])
960 continue;
655e6d6d 961
04fd2c28
LK		 962 /* Add header info */
963 fifo_data_len += mem_cfg->txfifo_size[i] +
964 sizeof(*dump_data) +
965 sizeof(struct iwl_fw_error_dump_fifo);
966 }
967 }
655e6d6d
EG		 968
969 file_len = sizeof(*dump_file) +
04fd2c28 970 sizeof(*dump_data) * 2 +
a549b296 971 sram_len + sizeof(*dump_mem) +
04fd2c28 972 fifo_data_len +
655e6d6d
EG		 973 sizeof(*dump_info);
974
b6eaa45a
EG		 975 if (mvm->fw_dump_desc)
976 file_len += sizeof(*dump_data) + sizeof(*dump_trig) +
977 mvm->fw_dump_desc->len;
978
addfaada
LK		 979 /* Make room for the SMEM, if it exists */
980 if (smem_len)
a549b296 981 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
addfaada 982
86138324
IY		 983 /* Make room for the secondary SRAM, if it exists */
984 if (sram2_len)
985 file_len += sizeof(*dump_data) + sizeof(*dump_mem) + sram2_len;
986
5bfe6f53 987 dump_file = vzalloc(file_len);
48eb7b34
EG		 988 if (!dump_file) {
989 kfree(fw_error_dump);
b6eaa45a 990 iwl_mvm_free_fw_dump_desc(mvm);
655e6d6d 991 return;
48eb7b34 992 }
655e6d6d 993
48eb7b34 994 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 995
996 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 997 dump_data = (void *)dump_file->data;
998
999 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
1000 dump_data->len = cpu_to_le32(sizeof(*dump_info));
1001 dump_info = (void *) dump_data->data;
1002 dump_info->device_family =
1003 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
1004 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
1005 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
435da2ce 1006 dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
655e6d6d
EG		 1007 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
1008 sizeof(dump_info->fw_human_readable));
1009 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
1010 sizeof(dump_info->dev_human_readable));
1011 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
1012 sizeof(dump_info->bus_human_readable));
1013
1014 dump_data = iwl_fw_error_next_data(dump_data);
04fd2c28
LK		 1015 /* We only dump the FIFOs if the FW is in error state */
1016 if (test_bit(STATUS_FW_ERROR, &mvm->trans->status))
1017 iwl_mvm_dump_fifos(mvm, &dump_data);
655e6d6d 1018
b6eaa45a
EG		 1019 if (mvm->fw_dump_desc) {
1020 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO);
1021 dump_data->len = cpu_to_le32(sizeof(*dump_trig) +
1022 mvm->fw_dump_desc->len);
1023 dump_trig = (void *)dump_data->data;
1024 memcpy(dump_trig, &mvm->fw_dump_desc->trig_desc,
1025 sizeof(*dump_trig) + mvm->fw_dump_desc->len);
1026
1027 /* now we can free this copy */
1028 iwl_mvm_free_fw_dump_desc(mvm);
1029 dump_data = iwl_fw_error_next_data(dump_data);
1030 }
1031
a549b296
EG		 1032 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1033 dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
1034 dump_mem = (void *)dump_data->data;
1035 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1036 dump_mem->offset = cpu_to_le32(sram_ofs);
1037 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
655e6d6d
EG		 1038 sram_len);
1039
addfaada
LK		 1040 if (smem_len) {
1041 dump_data = iwl_fw_error_next_data(dump_data);
e06d8437
EG		 1042 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1043 dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
1044 dump_mem = (void *)dump_data->data;
1045 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
1046 dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
addfaada 1047 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
e06d8437 1048 dump_mem->data, smem_len);
addfaada
LK		 1049 }
1050
86138324
IY		 1051 if (sram2_len) {
1052 dump_data = iwl_fw_error_next_data(dump_data);
1053 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
1054 dump_data->len = cpu_to_le32(sram2_len + sizeof(*dump_mem));
1055 dump_mem = (void *)dump_data->data;
1056 dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
1057 dump_mem->offset = cpu_to_le32(mvm->cfg->dccm2_offset);
1058 iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->dccm2_offset,
1059 dump_mem->data, sram2_len);
1060 }
1061
48eb7b34
EG		 1062 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
1063 fw_error_dump->op_mode_len = file_len;
1064 if (fw_error_dump->trans_ptr)
1065 file_len += fw_error_dump->trans_ptr->len;
1066 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 1067
aadede6e
JB		 1068 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
1069 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
d2709ad7
EG		 1070
1071 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG, &mvm->status);
655e6d6d 1072}
655e6d6d 1073
b6eaa45a
EG		 1074struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert = {
1075 .trig_desc = {
1076 .type = cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT),
1077 },
1078};
1079
8ca151b5
JB		 1080static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
1081{
58629d9d
JB		 1082 /* clear the D3 reconfig, we only need it to avoid dumping a
1083 * firmware coredump on reconfiguration, we shouldn't do that
1084 * on D3->D0 transition
1085 */
b6eaa45a
EG		 1086 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status)) {
1087 mvm->fw_dump_desc = &iwl_mvm_dump_desc_assert;
58629d9d 1088 iwl_mvm_fw_error_dump(mvm);
b6eaa45a 1089 }
1bd3cbc1 1090
744cb695
EP		 1091 /* cleanup all stale references (scan, roc), but keep the
1092 * ucode_down ref until reconfig is complete
1093 */
1094 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
1095
8ca151b5 1096 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1097
1098 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 1099 mvm->ps_disabled = false;
31b8b343 1100 mvm->calibrating = false;
8ca151b5
JB		 1101
1102 /* just in case one was running */
1103 ieee80211_remain_on_channel_expired(mvm->hw);
1104
1105 ieee80211_iterate_active_interfaces_atomic(
1106 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
1107 iwl_mvm_cleanup_iterator, mvm);
1108
fe0f2de3 1109 mvm->p2p_device_vif = NULL;
37577fe2 1110 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 1111
1112 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 1113 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
1114 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
a0f6bf2a 1115 memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
8a275bad
EG		 1116 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
1117 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
1118 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
1119 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
1120 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
1121 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 1122
1123 ieee80211_wake_queues(mvm->hw);
1124
228670b2
EP		 1125 /* clear any stale d0i3 state */
1126 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
1127
8ca151b5 1128 mvm->vif_count = 0;
113a0447 1129 mvm->rx_ba_sessions = 0;
d2709ad7 1130 mvm->fw_dbg_conf = FW_DBG_INVALID;
91a8bcde
JB		 1131
1132 /* keep statistics ticking */
1133 iwl_mvm_accu_radio_stats(mvm);
8ca151b5
JB		 1134}
1135
a0a09243 1136int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 1137{
8ca151b5
JB		 1138 int ret;
1139
a0a09243 1140 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 1141
1142 /* Clean up some internal and mac80211 state on restart */
1143 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1144 iwl_mvm_restart_cleanup(mvm);
1145
1146 ret = iwl_mvm_up(mvm);
c47af22a
JB		 1147
1148 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1149 /* Something went wrong - we need to finish some cleanup
1150 * that normally iwl_mvm_mac_restart_complete() below
1151 * would do.
1152 */
1153 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1154 iwl_mvm_d0i3_enable_tx(mvm, NULL);
1155 }
1156
a0a09243
LC		 1157 return ret;
1158}
1159
1160static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1161{
1162 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1163 int ret;
1164
37948fcf
EP		 1165 /* Some hw restart cleanups must not hold the mutex */
1166 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1167 /*
1168 * Make sure we are out of d0i3. This is needed
1169 * to make sure the reference accounting is correct
1170 * (and there is no stale d0i3_exit_work).
1171 */
1172 wait_event_timeout(mvm->d0i3_exit_waitq,
1173 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1174 &mvm->status),
1175 HZ);
1176 }
1177
a0a09243
LC		 1178 mutex_lock(&mvm->mutex);
1179 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 1180 mutex_unlock(&mvm->mutex);
1181
1182 return ret;
1183}
1184
cf2c92d8 1185static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 1186{
8ca151b5
JB		 1187 int ret;
1188
1189 mutex_lock(&mvm->mutex);
1190
1191 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 1192 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 1193 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1194 if (ret)
1195 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1196 ret);
1197
7498cf4c
EP		 1198 /* allow transport/FW low power modes */
1199 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
1200
cbd2ae2d
AN		 1201 /*
1202 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1203 * of packets the FW sent out, so we must reconnect.
1204 */
1205 iwl_mvm_teardown_tdls_peers(mvm);
1206
8ca151b5
JB		 1207 mutex_unlock(&mvm->mutex);
1208}
1209
088070a2
EP		 1210static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
1211{
1212 bool exit_now;
1213
1214 if (!iwl_mvm_is_d0i3_supported(mvm))
1215 return;
1216
1217 mutex_lock(&mvm->d0i3_suspend_mutex);
1218 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1219 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
1220 &mvm->d0i3_suspend_flags);
1221 mutex_unlock(&mvm->d0i3_suspend_mutex);
1222
1223 if (exit_now) {
1224 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
1225 _iwl_mvm_exit_d0i3(mvm);
1226 }
6735943f
EP		 1227
1228 if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
1229 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
1230 !test_bit(IWL_MVM_STATUS_IN_D0I3,
1231 &mvm->status),
1232 HZ))
1233 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
088070a2
EP		 1234}
1235
cf2c92d8
EP		 1236static void
1237iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1238 enum ieee80211_reconfig_type reconfig_type)
1239{
1240 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1241
1242 switch (reconfig_type) {
1243 case IEEE80211_RECONFIG_TYPE_RESTART:
1244 iwl_mvm_restart_complete(mvm);
1245 break;
1246 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 1247 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 1248 break;
1249 }
1250}
1251
a0a09243 1252void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 1253{
a0a09243 1254 lockdep_assert_held(&mvm->mutex);
7498cf4c 1255
91a8bcde
JB		 1256 /* firmware counters are obviously reset now, but we shouldn't
1257 * partially track so also clear the fw_reset_accu counters.
1258 */
1259 memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1260
0a79a0c0
EP		 1261 /*
1262 * Disallow low power states when the FW is down by taking
1263 * the UCODE_DOWN ref. in case of ongoing hw restart the
1264 * ref is already taken, so don't take it again.
1265 */
1266 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1267 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
7498cf4c 1268
8ca151b5
JB		 1269 /* async_handlers_wk is now blocked */
1270
1271 /*
1272 * The work item could be running or queued if the
1273 * ROC time event stops just as we get here.
1274 */
1275 cancel_work_sync(&mvm->roc_done_wk);
1276
1277 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1278
1279 iwl_mvm_async_handlers_purge(mvm);
1280 /* async_handlers_list is empty and will stay empty: HW is stopped */
1281
1282 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1283 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1284
0a79a0c0
EP		 1285 /*
1286 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1287 * won't be called in this case).
1288 */
1289 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1290
bc44886d 1291 mvm->ucode_loaded = false;
a0a09243 1292}
bc44886d 1293
a0a09243
LC		 1294static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1295{
1296 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1297
1298 flush_work(&mvm->d0i3_exit_work);
1299 flush_work(&mvm->async_handlers_wk);
d2709ad7 1300 cancel_delayed_work_sync(&mvm->fw_dump_wk);
b6eaa45a 1301 iwl_mvm_free_fw_dump_desc(mvm);
a0a09243
LC		 1302
1303 mutex_lock(&mvm->mutex);
1304 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1305 mutex_unlock(&mvm->mutex);
1306
1307 /*
1308 * The worker might have been waiting for the mutex, let it run and
1309 * discover that its list is now empty.
1310 */
1311 cancel_work_sync(&mvm->async_handlers_wk);
1312}
1313
fe0f2de3
IP		 1314static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1315{
1316 u16 i;
1317
1318 lockdep_assert_held(&mvm->mutex);
1319
1320 for (i = 0; i < NUM_PHY_CTX; i++)
1321 if (!mvm->phy_ctxts[i].ref)
1322 return &mvm->phy_ctxts[i];
1323
1324 IWL_ERR(mvm, "No available PHY context\n");
1325 return NULL;
1326}
1327
ee9c6cb0
EG		 1328static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1329 s8 tx_power)
1330{
1331 /* FW is in charge of regulatory enforcement */
1332 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1333 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1334 .pwr_restriction = cpu_to_le16(tx_power),
1335 };
1336
a1022927 1337 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1338 sizeof(reduce_txpwr_cmd),
1339 &reduce_txpwr_cmd);
1340}
1341
8ca151b5
JB		 1342static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1343 struct ieee80211_vif *vif)
1344{
1345 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1346 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1347 int ret;
1348
aa5e1832
EG		 1349 mvmvif->mvm = mvm;
1350
d40fc489
GG		 1351 /*
1352 * make sure D0i3 exit is completed, otherwise a target access
1353 * during tx queue configuration could be done when still in
1354 * D0i3 state.
1355 */
1356 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1357 if (ret)
1358 return ret;
1359
8ca151b5
JB		 1360 /*
1361 * Not much to do here. The stack will not allow interface
1362 * types or combinations that we didn't advertise, so we
1363 * don't really have to check the types.
1364 */
1365
1366 mutex_lock(&mvm->mutex);
1367
33cef925
JB		 1368 /* make sure that beacon statistics don't go backwards with FW reset */
1369 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1370 mvmvif->beacon_stats.accu_num_beacons +=
1371 mvmvif->beacon_stats.num_beacons;
1372
e89044d7 1373 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1374 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1375 if (ret)
1376 goto out_unlock;
1377
1c2abf72 1378 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1379 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1380 mvm->vif_count++;
ea183d02 1381
8ca151b5
JB		 1382 /*
1383 * The AP binding flow can be done only after the beacon
1384 * template is configured (which happens only in the mac80211
1385 * start_ap() flow), and adding the broadcast station can happen
1386 * only after the binding.
1387 * In addition, since modifying the MAC before adding a bcast
1388 * station is not allowed by the FW, delay the adding of MAC context to
1389 * the point where we can also add the bcast station.
1390 * In short: there's not much we can do at this point, other than
1391 * allocating resources :)
1392 */
5023d966
JB		 1393 if (vif->type == NL80211_IFTYPE_AP ||
1394 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1395 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1396 if (ret) {
1397 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1398 goto out_release;
1399 }
1400
77740cb4 1401 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1402 goto out_unlock;
1403 }
1404
8ca151b5
JB		 1405 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1406 if (ret)
1407 goto out_release;
1408
999609f1 1409 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e 1410 if (ret)
fd66fc1c 1411 goto out_remove_mac;
8ca151b5 1412
7df15b1e 1413 /* beacon filtering */
a1022927 1414 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1415 if (ret)
1416 goto out_remove_mac;
1417
7df15b1e 1418 if (!mvm->bf_allowed_vif &&
73e5f2c5 1419 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1420 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1421 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1422 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1423 }
1424
8ca151b5
JB		 1425 /*
1426 * P2P_DEVICE interface does not have a channel context assigned to it,
1427 * so a dedicated PHY context is allocated to it and the corresponding
1428 * MAC context is bound to it at this stage.
1429 */
1430 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1431
fe0f2de3
IP		 1432 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1433 if (!mvmvif->phy_ctxt) {
1434 ret = -ENOSPC;
bd3351ba 1435 goto out_free_bf;
fe0f2de3 1436 }
8ca151b5 1437
53a9d61e 1438 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1439 ret = iwl_mvm_binding_add_vif(mvm, vif);
1440 if (ret)
53a9d61e 1441 goto out_unref_phy;
8ca151b5 1442
013290aa 1443 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1444 if (ret)
1445 goto out_unbind;
1446
1447 /* Save a pointer to p2p device vif, so it can later be used to
1448 * update the p2p device MAC when a GO is started/stopped */
1449 mvm->p2p_device_vif = vif;
1450 }
1451
63494374 1452 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1453 goto out_unlock;
1454
1455 out_unbind:
1456 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1457 out_unref_phy:
fe0f2de3 1458 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1459 out_free_bf:
1460 if (mvm->bf_allowed_vif == mvmvif) {
1461 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1462 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1463 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1464 }
8ca151b5
JB		 1465 out_remove_mac:
1466 mvmvif->phy_ctxt = NULL;
1467 iwl_mvm_mac_ctxt_remove(mvm, vif);
1468 out_release:
5ee2b215
AB		 1469 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1470 mvm->vif_count--;
1c2abf72 1471
8ca151b5
JB		 1472 iwl_mvm_mac_ctxt_release(mvm, vif);
1473 out_unlock:
1474 mutex_unlock(&mvm->mutex);
1475
d40fc489
GG		 1476 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1477
8ca151b5
JB		 1478 return ret;
1479}
1480
38a12b5b
JB		 1481static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1482 struct ieee80211_vif *vif)
8ca151b5 1483{
d92b732e 1484 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1485
1486 if (tfd_msk) {
1487 mutex_lock(&mvm->mutex);
1488 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1489 mutex_unlock(&mvm->mutex);
1490 }
1491
1492 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1493 /*
1494 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1495 * We assume here that all the packets sent to the OFFCHANNEL
1496 * queue are sent in ROC session.
1497 */
1498 flush_work(&mvm->roc_done_wk);
1499 } else {
1500 /*
1501 * By now, all the AC queues are empty. The AGG queues are
1502 * empty too. We already got all the Tx responses for all the
1503 * packets in the queues. The drain work can have been
0742a75a 1504 * triggered. Flush it.
8ca151b5
JB		 1505 */
1506 flush_work(&mvm->sta_drained_wk);
1507 }
38a12b5b
JB		 1508}
1509
1510static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1511 struct ieee80211_vif *vif)
1512{
1513 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1514 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1515
1516 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1517
1518 mutex_lock(&mvm->mutex);
1519
7df15b1e
HG		 1520 if (mvm->bf_allowed_vif == mvmvif) {
1521 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1522 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1523 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1524 }
1525
63494374
JB		 1526 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1527
8ca151b5
JB		 1528 /*
1529 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1530 * interface is be handled as part of the stop_ap flow.
8ca151b5 1531 */
5023d966
JB		 1532 if (vif->type == NL80211_IFTYPE_AP ||
1533 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1534#ifdef CONFIG_NL80211_TESTMODE
1535 if (vif == mvm->noa_vif) {
1536 mvm->noa_vif = NULL;
1537 mvm->noa_duration = 0;
1538 }
1539#endif
013290aa 1540 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1541 goto out_release;
1542 }
1543
1544 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1545 mvm->p2p_device_vif = NULL;
013290aa 1546 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1547 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1548 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1549 mvmvif->phy_ctxt = NULL;
1550 }
1551
5ee2b215 1552 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1553 mvm->vif_count--;
1c2abf72 1554
999609f1 1555 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1556 iwl_mvm_mac_ctxt_remove(mvm, vif);
1557
1558out_release:
1559 iwl_mvm_mac_ctxt_release(mvm, vif);
1560 mutex_unlock(&mvm->mutex);
1561}
1562
1563static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1564{
8ca151b5
JB		 1565 return 0;
1566}
1567
e59647ea
EP		 1568struct iwl_mvm_mc_iter_data {
1569 struct iwl_mvm *mvm;
1570 int port_id;
1571};
1572
1573static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1574 struct ieee80211_vif *vif)
1575{
1576 struct iwl_mvm_mc_iter_data *data = _data;
1577 struct iwl_mvm *mvm = data->mvm;
1578 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1579 int ret, len;
1580
1581 /* if we don't have free ports, mcast frames will be dropped */
1582 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1583 return;
1584
1585 if (vif->type != NL80211_IFTYPE_STATION ||
1586 !vif->bss_conf.assoc)
1587 return;
1588
1589 cmd->port_id = data->port_id++;
1590 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1591 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1592
1c4abec0 1593 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1594 if (ret)
1595 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1596}
1597
1598static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1599{
1600 struct iwl_mvm_mc_iter_data iter_data = {
1601 .mvm = mvm,
88f2fd73
MG		 1602 };
1603
e59647ea
EP		 1604 lockdep_assert_held(&mvm->mutex);
1605
1606 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1607 return;
1608
1c4abec0 1609 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1610 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1611 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1612}
1613
e59647ea
EP		 1614static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1615 struct netdev_hw_addr_list *mc_list)
8ca151b5 1616{
e59647ea
EP		 1617 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1618 struct iwl_mcast_filter_cmd *cmd;
1619 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1620 int addr_count;
1621 bool pass_all;
e59647ea
EP		 1622 int len;
1623
f3bd58f4
MS		 1624 addr_count = netdev_hw_addr_list_count(mc_list);
1625 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1626 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1627 if (pass_all)
e59647ea 1628 addr_count = 0;
e59647ea
EP		 1629
1630 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1631 cmd = kzalloc(len, GFP_ATOMIC);
1632 if (!cmd)
1633 return 0;
1634
1635 if (pass_all) {
1636 cmd->pass_all = 1;
1637 return (u64)(unsigned long)cmd;
1638 }
1639
1640 netdev_hw_addr_list_for_each(addr, mc_list) {
1641 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1642 cmd->count, addr->addr);
1643 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1644 addr->addr, ETH_ALEN);
1645 cmd->count++;
1646 }
1647
1648 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1649}
1650
1651static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1652 unsigned int changed_flags,
1653 unsigned int *total_flags,
1654 u64 multicast)
1655{
e59647ea
EP		 1656 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1657 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1658
e59647ea 1659 mutex_lock(&mvm->mutex);
51b6b9e0 1660
e59647ea
EP		 1661 /* replace previous configuration */
1662 kfree(mvm->mcast_filter_cmd);
1663 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1664
e59647ea
EP		 1665 if (!cmd)
1666 goto out;
51b6b9e0 1667
e59647ea
EP		 1668 iwl_mvm_recalc_multicast(mvm);
1669out:
1670 mutex_unlock(&mvm->mutex);
1671 *total_flags = 0;
51b6b9e0
EG		 1672}
1673
c87163b9
EP		 1674#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1675struct iwl_bcast_iter_data {
1676 struct iwl_mvm *mvm;
1677 struct iwl_bcast_filter_cmd *cmd;
1678 u8 current_filter;
1679};
1680
1681static void
1682iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1683 const struct iwl_fw_bcast_filter *in_filter,
1684 struct iwl_fw_bcast_filter *out_filter)
1685{
1686 struct iwl_fw_bcast_filter_attr *attr;
1687 int i;
1688
1689 memcpy(out_filter, in_filter, sizeof(*out_filter));
1690
1691 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1692 attr = &out_filter->attrs[i];
1693
1694 if (!attr->mask)
1695 break;
1696
2ee8f021
EP		 1697 switch (attr->reserved1) {
1698 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1699 if (vif->bss_conf.arp_addr_cnt != 1) {
1700 attr->mask = 0;
1701 continue;
1702 }
1703
1704 attr->val = vif->bss_conf.arp_addr_list[0];
1705 break;
1706 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1707 attr->val = *(__be32 *)&vif->addr[2];
1708 break;
1709 default:
1710 break;
1711 }
1712 attr->reserved1 = 0;
c87163b9
EP		 1713 out_filter->num_attrs++;
1714 }
1715}
1716
1717static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1718 struct ieee80211_vif *vif)
1719{
1720 struct iwl_bcast_iter_data *data = _data;
1721 struct iwl_mvm *mvm = data->mvm;
1722 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1724 struct iwl_fw_bcast_mac *bcast_mac;
1725 int i;
1726
1727 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1728 return;
1729
1730 bcast_mac = &cmd->macs[mvmvif->id];
1731
e48393e8
IP		 1732 /*
1733 * enable filtering only for associated stations, but not for P2P
1734 * Clients
1735 */
1736 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1737 !vif->bss_conf.assoc)
c87163b9
EP		 1738 return;
1739
1740 bcast_mac->default_discard = 1;
1741
1742 /* copy all configured filters */
1743 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1744 /*
1745 * Make sure we don't exceed our filters limit.
1746 * if there is still a valid filter to be configured,
1747 * be on the safe side and just allow bcast for this mac.
1748 */
1749 if (WARN_ON_ONCE(data->current_filter >=
1750 ARRAY_SIZE(cmd->filters))) {
1751 bcast_mac->default_discard = 0;
1752 bcast_mac->attached_filters = 0;
1753 break;
1754 }
1755
1756 iwl_mvm_set_bcast_filter(vif,
1757 &mvm->bcast_filters[i],
1758 &cmd->filters[data->current_filter]);
1759
1760 /* skip current filter if it contains no attributes */
1761 if (!cmd->filters[data->current_filter].num_attrs)
1762 continue;
1763
1764 /* attach the filter to current mac */
1765 bcast_mac->attached_filters |=
1766 cpu_to_le16(BIT(data->current_filter));
1767
1768 data->current_filter++;
1769 }
1770}
1771
de06a59e
EP		 1772bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1773 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1774{
c87163b9
EP		 1775 struct iwl_bcast_iter_data iter_data = {
1776 .mvm = mvm,
de06a59e 1777 .cmd = cmd,
c87163b9
EP		 1778 };
1779
3b8983b1
MS		 1780 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1781 return false;
1782
de06a59e
EP		 1783 memset(cmd, 0, sizeof(*cmd));
1784 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1785 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1786
1787#ifdef CONFIG_IWLWIFI_DEBUGFS
1788 /* use debugfs filters/macs if override is configured */
1789 if (mvm->dbgfs_bcast_filtering.override) {
1790 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1791 sizeof(cmd->filters));
1792 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1793 sizeof(cmd->macs));
1794 return true;
1795 }
1796#endif
c87163b9
EP		 1797
1798 /* if no filters are configured, do nothing */
1799 if (!mvm->bcast_filters)
de06a59e 1800 return false;
c87163b9
EP		 1801
1802 /* configure and attach these filters for each associated sta vif */
1803 ieee80211_iterate_active_interfaces(
1804 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1805 iwl_mvm_bcast_filter_iterator, &iter_data);
1806
de06a59e
EP		 1807 return true;
1808}
1809static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1810 struct ieee80211_vif *vif)
1811{
1812 struct iwl_bcast_filter_cmd cmd;
1813
1814 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1815 return 0;
1816
1817 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1818 return 0;
1819
a1022927 1820 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1821 sizeof(cmd), &cmd);
1822}
1823#else
1824static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1825 struct ieee80211_vif *vif)
1826{
1827 return 0;
1828}
1829#endif
1830
8ca151b5
JB		 1831static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1832 struct ieee80211_vif *vif,
1833 struct ieee80211_bss_conf *bss_conf,
1834 u32 changes)
1835{
1836 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1837 int ret;
1838
6e97b0d2
IP		 1839 /*
1840 * Re-calculate the tsf id, as the master-slave relations depend on the
1841 * beacon interval, which was not known when the station interface was
1842 * added.
1843 */
1844 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1845 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1846
3dfd3a97
JB		 1847 /*
1848 * If we're not associated yet, take the (new) BSSID before associating
1849 * so the firmware knows. If we're already associated, then use the old
1850 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1851 * branch for disassociation below.
1852 */
1853 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1854 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1855
1856 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1857 if (ret)
1858 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1859
3dfd3a97
JB		 1860 /* after sending it once, adopt mac80211 data */
1861 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1862 mvmvif->associated = bss_conf->assoc;
1863
8ca151b5
JB		 1864 if (changes & BSS_CHANGED_ASSOC) {
1865 if (bss_conf->assoc) {
33cef925
JB		 1866 /* clear statistics to get clean beacon counter */
1867 iwl_mvm_request_statistics(mvm, true);
1868 memset(&mvmvif->beacon_stats, 0,
1869 sizeof(mvmvif->beacon_stats));
1870
8ca151b5 1871 /* add quota for this interface */
0166230c 1872 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1873 if (ret) {
1874 IWL_ERR(mvm, "failed to update quotas\n");
1875 return;
1876 }
016d27e1
JB		 1877
1878 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1879 &mvm->status)) {
1880 /*
1881 * If we're restarting then the firmware will
1882 * obviously have lost synchronisation with
1883 * the AP. It will attempt to synchronise by
1884 * itself, but we can make it more reliable by
1885 * scheduling a session protection time event.
1886 *
1887 * The firmware needs to receive a beacon to
1888 * catch up with synchronisation, use 110% of
1889 * the beacon interval.
1890 *
1891 * Set a large maximum delay to allow for more
1892 * than a single interface.
1893 */
1894 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1895 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1896 5 * dur, false);
016d27e1 1897 }
1f3b0ff8
LE		 1898
1899 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1900 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1901 if (vif->p2p) {
29a90a49 1902 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1903 iwl_mvm_update_smps(mvm, vif,
1904 IWL_MVM_SMPS_REQ_PROT,
1905 IEEE80211_SMPS_DYNAMIC);
1906 }
8ca151b5 1907 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1908 /*
1909 * If update fails - SF might be running in associated
1910 * mode while disassociated - which is forbidden.
1911 */
1912 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1913 "Failed to update SF upon disassociation\n");
1914
8ca151b5
JB		 1915 /* remove AP station now that the MAC is unassoc */
1916 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1917 if (ret)
1918 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1919
1920 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1921 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1922 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1923 /* remove quota for this interface */
0166230c 1924 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1925 if (ret)
1926 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1927
1928 if (vif->p2p)
1929 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1930
1931 /* this will take the cleared BSSID from bss_conf */
1932 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1933 if (ret)
1934 IWL_ERR(mvm,
1935 "failed to update MAC %pM (clear after unassoc)\n",
1936 vif->addr);
8ca151b5 1937 }
a20fd398 1938
e59647ea 1939 iwl_mvm_recalc_multicast(mvm);
c87163b9 1940 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1941
a20fd398
AO		 1942 /* reset rssi values */
1943 mvmvif->bf_data.ave_beacon_signal = 0;
1944
8e484f0b 1945 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1946 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1947 IEEE80211_SMPS_AUTOMATIC);
989c6505 1948 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1949 /*
1950 * We received a beacon _after_ association so
1951 * remove the session protection.
1952 */
1953 iwl_mvm_remove_time_event(mvm, mvmvif,
1954 &mvmvif->time_event_data);
8ca151b5 1955 }
cc87d322
EH		 1956
1957 if (changes & BSS_CHANGED_BEACON_INFO) {
1958 iwl_mvm_sf_update(mvm, vif, false);
1959 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1960 }
1961
1bc10d3b
JB		 1962 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1963 ret = iwl_mvm_power_update_mac(mvm);
1964 if (ret)
1965 IWL_ERR(mvm, "failed to update power mode\n");
1966 }
1967
88f2fd73
MG		 1968 if (changes & BSS_CHANGED_TXPOWER) {
1969 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1970 bss_conf->txpower);
1971 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1972 }
a20fd398
AO		 1973
1974 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1975 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1976 /* reset cqm events tracking */
1977 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1978 if (mvmvif->bf_data.bf_enabled) {
1979 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1980 if (ret)
1981 IWL_ERR(mvm,
1982 "failed to update CQM thresholds\n");
1983 }
a20fd398 1984 }
2ee8f021
EP		 1985
1986 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1987 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1988 iwl_mvm_configure_bcast_filter(mvm, vif);
1989 }
8ca151b5
JB		 1990}
1991
5023d966
JB		 1992static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1993 struct ieee80211_vif *vif)
8ca151b5
JB		 1994{
1995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1996 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1997 int ret;
1998
576eeee9
EP		 1999 /*
2000 * iwl_mvm_mac_ctxt_add() might read directly from the device
2001 * (the system time), so make sure it is available.
2002 */
2003 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
2004 if (ret)
2005 return ret;
2006
8ca151b5
JB		 2007 mutex_lock(&mvm->mutex);
2008
2009 /* Send the beacon template */
2010 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2011 if (ret)
2012 goto out_unlock;
2013
6e97b0d2
IP		 2014 /*
2015 * Re-calculate the tsf id, as the master-slave relations depend on the
2016 * beacon interval, which was not known when the AP interface was added.
2017 */
2018 if (vif->type == NL80211_IFTYPE_AP)
2019 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2020
8ca151b5
JB		 2021 /* Add the mac context */
2022 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2023 if (ret)
2024 goto out_unlock;
2025
2026 /* Perform the binding */
2027 ret = iwl_mvm_binding_add_vif(mvm, vif);
2028 if (ret)
2029 goto out_remove;
2030
8ca151b5
JB		 2031 /* Send the bcast station. At this stage the TBTT and DTIM time events
2032 * are added and applied to the scheduler */
013290aa 2033 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 2034 if (ret)
2035 goto out_unbind;
2036
5691e218
IP		 2037 /* must be set before quota calculations */
2038 mvmvif->ap_ibss_active = true;
2039
a11e144e 2040 /* power updated needs to be done before quotas */
999609f1 2041 iwl_mvm_power_update_mac(mvm);
a11e144e 2042
0166230c 2043 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 2044 if (ret)
a11e144e 2045 goto out_quota_failed;
8ca151b5 2046
5023d966 2047 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2048 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2049 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2050
29a90a49
EP		 2051 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
2052
8e484f0b 2053 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2054
f697267f
AN		 2055 /* we don't support TDLS during DCM */
2056 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2057 iwl_mvm_teardown_tdls_peers(mvm);
2058
8ca151b5
JB		 2059 mutex_unlock(&mvm->mutex);
2060 return 0;
2061
a11e144e 2062out_quota_failed:
999609f1 2063 iwl_mvm_power_update_mac(mvm);
5691e218 2064 mvmvif->ap_ibss_active = false;
013290aa 2065 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 2066out_unbind:
2067 iwl_mvm_binding_remove_vif(mvm, vif);
2068out_remove:
2069 iwl_mvm_mac_ctxt_remove(mvm, vif);
2070out_unlock:
2071 mutex_unlock(&mvm->mutex);
576eeee9 2072 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 2073 return ret;
2074}
2075
5023d966
JB		 2076static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2077 struct ieee80211_vif *vif)
8ca151b5
JB		 2078{
2079 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2080 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2081
38a12b5b
JB		 2082 iwl_mvm_prepare_mac_removal(mvm, vif);
2083
8ca151b5
JB		 2084 mutex_lock(&mvm->mutex);
2085
664322fa 2086 /* Handle AP stop while in CSA */
7f0a7c67
AO		 2087 if (rcu_access_pointer(mvm->csa_vif) == vif) {
2088 iwl_mvm_remove_time_event(mvm, mvmvif,
2089 &mvmvif->time_event_data);
664322fa 2090 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 2091 }
664322fa 2092
003e5236
AO		 2093 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2094 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2095 mvm->csa_tx_block_bcn_timeout = 0;
2096 }
2097
5023d966 2098 mvmvif->ap_ibss_active = false;
1c87bbad 2099 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 2100
8e484f0b 2101 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 2102
29a90a49
EP		 2103 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
2104
5023d966 2105 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 2106 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 2107 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 2108
0166230c 2109 iwl_mvm_update_quotas(mvm, NULL);
013290aa 2110 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 2111 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 2112
999609f1 2113 iwl_mvm_power_update_mac(mvm);
a11e144e 2114
8ca151b5
JB		 2115 iwl_mvm_mac_ctxt_remove(mvm, vif);
2116
2117 mutex_unlock(&mvm->mutex);
2118}
2119
5023d966
JB		 2120static void
2121iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2122 struct ieee80211_vif *vif,
2123 struct ieee80211_bss_conf *bss_conf,
2124 u32 changes)
8ca151b5 2125{
be2056fc 2126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 2127
be2056fc
IP		 2128 /* Changes will be applied when the AP/IBSS is started */
2129 if (!mvmvif->ap_ibss_active)
2130 return;
2131
863230da 2132 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 2133 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 2134 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 2135 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 2136
8ca151b5 2137 /* Need to send a new beacon template to the FW */
863230da
JB		 2138 if (changes & BSS_CHANGED_BEACON &&
2139 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2140 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 2141
2142 if (changes & BSS_CHANGED_TXPOWER) {
2143 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
2144 bss_conf->txpower);
2145 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2146 }
2147
8ca151b5
JB		 2148}
2149
2150static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2151 struct ieee80211_vif *vif,
2152 struct ieee80211_bss_conf *bss_conf,
2153 u32 changes)
2154{
2155 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2156
576eeee9
EP		 2157 /*
2158 * iwl_mvm_bss_info_changed_station() might call
2159 * iwl_mvm_protect_session(), which reads directly from
2160 * the device (the system time), so make sure it is available.
2161 */
2162 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
2163 return;
2164
8ca151b5
JB		 2165 mutex_lock(&mvm->mutex);
2166
723f02ed 2167 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 2168 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 2169
8ca151b5
JB		 2170 switch (vif->type) {
2171 case NL80211_IFTYPE_STATION:
2172 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2173 break;
2174 case NL80211_IFTYPE_AP:
5023d966
JB		 2175 case NL80211_IFTYPE_ADHOC:
2176 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 2177 break;
2178 default:
2179 /* shouldn't happen */
2180 WARN_ON_ONCE(1);
2181 }
2182
2183 mutex_unlock(&mvm->mutex);
576eeee9 2184 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 2185}
2186
4660dfbb
EP		 2187static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
2188 enum iwl_scan_status scan_type)
2189{
2190 int ret;
2191 bool wait_for_handlers = false;
2192
2193 mutex_lock(&mvm->mutex);
2194
2195 if (mvm->scan_status != scan_type) {
2196 ret = 0;
2197 /* make sure there are no pending notifications */
2198 wait_for_handlers = true;
2199 goto out;
2200 }
2201
2202 switch (scan_type) {
2203 case IWL_MVM_SCAN_SCHED:
2204 ret = iwl_mvm_scan_offload_stop(mvm, true);
2205 break;
2206 case IWL_MVM_SCAN_OS:
2207 ret = iwl_mvm_cancel_scan(mvm);
2208 break;
2209 case IWL_MVM_SCAN_NONE:
2210 default:
2211 WARN_ON_ONCE(1);
2212 ret = -EINVAL;
2213 break;
2214 }
2215 if (ret)
2216 goto out;
2217
2218 wait_for_handlers = true;
2219out:
2220 mutex_unlock(&mvm->mutex);
2221
2222 /* make sure we consume the completion notification */
2223 if (wait_for_handlers)
2224 iwl_mvm_wait_for_async_handlers(mvm);
2225
2226 return ret;
2227}
8ca151b5
JB		 2228static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2229 struct ieee80211_vif *vif,
c56ef672 2230 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 2231{
2232 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 2233 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 2234 int ret;
2235
762533ba
DS		 2236 if (req->n_channels == 0 ||
2237 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 2238 return -EINVAL;
2239
d2496221
DS		 2240 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2241 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
2242 if (ret)
2243 return ret;
2244 }
4660dfbb 2245
8ca151b5
JB		 2246 mutex_lock(&mvm->mutex);
2247
4660dfbb 2248 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 2249 ret = -EBUSY;
519e2026
AN		 2250 goto out;
2251 }
8ca151b5 2252
519e2026
AN		 2253 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
2254
b975e55a 2255 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 2256 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
fb98be5e 2257 else
1f940386 2258 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e 2259
519e2026
AN		 2260 if (ret)
2261 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
2262out:
8ca151b5 2263 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 2264 return ret;
2265}
2266
2267static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2268 struct ieee80211_vif *vif)
2269{
2270 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2271
2272 mutex_lock(&mvm->mutex);
2273
2274 iwl_mvm_cancel_scan(mvm);
2275
2276 mutex_unlock(&mvm->mutex);
2277}
2278
2279static void
2280iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 2281 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 2282 int num_frames,
2283 enum ieee80211_frame_release_type reason,
2284 bool more_data)
2285{
2286 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 2287
3e56eadf 2288 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 2289
3e56eadf
JB		 2290 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2291 tids, more_data, false);
2292}
2293
2294static void
2295iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2296 struct ieee80211_sta *sta, u16 tids,
2297 int num_frames,
2298 enum ieee80211_frame_release_type reason,
2299 bool more_data)
2300{
2301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2302
2303 /* Called when we need to transmit (a) frame(s) from agg queue */
2304
2305 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2306 tids, more_data, true);
8ca151b5
JB		 2307}
2308
2309static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2310 struct ieee80211_vif *vif,
2311 enum sta_notify_cmd cmd,
2312 struct ieee80211_sta *sta)
2313{
2314 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2315 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2316 int tid;
8ca151b5
JB		 2317
2318 switch (cmd) {
2319 case STA_NOTIFY_SLEEP:
e3d4bc8c 2320 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2321 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2322 spin_lock_bh(&mvmsta->lock);
2323 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2324 struct iwl_mvm_tid_data *tid_data;
2325
2326 tid_data = &mvmsta->tid_data[tid];
2327 if (tid_data->state != IWL_AGG_ON &&
2328 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2329 continue;
2330 if (iwl_mvm_tid_queued(tid_data) == 0)
2331 continue;
2332 ieee80211_sta_set_buffered(sta, tid, true);
2333 }
2334 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2335 /*
2336 * The fw updates the STA to be asleep. Tx packets on the Tx
2337 * queues to this station will not be transmitted. The fw will
2338 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2339 */
2340 break;
2341 case STA_NOTIFY_AWAKE:
881acd89 2342 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2343 break;
9cc40712 2344 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2345 break;
2346 default:
2347 break;
2348 }
2349}
2350
1ddbbb0c
JB		 2351static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2352 struct ieee80211_vif *vif,
2353 struct ieee80211_sta *sta)
2354{
2355 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 2356 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
1ddbbb0c
JB		 2357
2358 /*
2359 * This is called before mac80211 does RCU synchronisation,
2360 * so here we already invalidate our internal RCU-protected
2361 * station pointer. The rest of the code will thus no longer
2362 * be able to find the station this way, and we don't rely
2363 * on further RCU synchronisation after the sta_state()
2364 * callback deleted the station.
2365 */
2366 mutex_lock(&mvm->mutex);
2367 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2368 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2369 ERR_PTR(-ENOENT));
2370 mutex_unlock(&mvm->mutex);
2371}
2372
bd1ba664
JB		 2373static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2374 const u8 *bssid)
2375{
2376 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2377 return;
2378
2379 if (iwlwifi_mod_params.uapsd_disable) {
2380 vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2381 return;
2382 }
2383
2384 vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2385}
2386
8ca151b5
JB		 2387static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2388 struct ieee80211_vif *vif,
2389 struct ieee80211_sta *sta,
2390 enum ieee80211_sta_state old_state,
2391 enum ieee80211_sta_state new_state)
2392{
2393 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2394 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2395 int ret;
2396
2397 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2398 sta->addr, old_state, new_state);
2399
2400 /* this would be a mac80211 bug ... but don't crash */
2401 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2402 return -EINVAL;
2403
2404 /* if a STA is being removed, reuse its ID */
2405 flush_work(&mvm->sta_drained_wk);
2406
2407 mutex_lock(&mvm->mutex);
2408 if (old_state == IEEE80211_STA_NOTEXIST &&
2409 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2410 /*
2411 * Firmware bug - it'll crash if the beacon interval is less
2412 * than 16. We can't avoid connecting at all, so refuse the
2413 * station state change, this will cause mac80211 to abandon
2414 * attempts to connect to this AP, and eventually wpa_s will
2415 * blacklist the AP...
2416 */
2417 if (vif->type == NL80211_IFTYPE_STATION &&
2418 vif->bss_conf.beacon_int < 16) {
2419 IWL_ERR(mvm,
2420 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2421 sta->addr, vif->bss_conf.beacon_int);
2422 ret = -EINVAL;
2423 goto out_unlock;
2424 }
cf7b491d
AN		 2425
2426 if (sta->tdls &&
2427 (vif->p2p ||
fa3d07e4
AN		 2428 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2429 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2430 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2431 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2432 ret = -EBUSY;
2433 goto out_unlock;
2434 }
2435
8ca151b5 2436 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2437 if (sta->tdls && ret == 0)
2438 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2439 } else if (old_state == IEEE80211_STA_NONE &&
2440 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2441 /*
2442 * EBS may be disabled due to previous failures reported by FW.
2443 * Reset EBS status here assuming environment has been changed.
2444 */
2445 mvm->last_ebs_successful = true;
bd1ba664 2446 iwl_mvm_check_uapsd(mvm, vif, sta->addr);
8ca151b5
JB		 2447 ret = 0;
2448 } else if (old_state == IEEE80211_STA_AUTH &&
2449 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2450 ret = iwl_mvm_update_sta(mvm, vif, sta);
2451 if (ret == 0)
2452 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2453 mvmvif->phy_ctxt->channel->band,
2454 true);
8ca151b5
JB		 2455 } else if (old_state == IEEE80211_STA_ASSOC &&
2456 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2457
2458 /* we don't support TDLS during DCM */
2459 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2460 iwl_mvm_teardown_tdls_peers(mvm);
2461
7df15b1e 2462 /* enable beacon filtering */
fa7b2e7f 2463 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2464 ret = 0;
2465 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2466 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2467 /* disable beacon filtering */
a1022927 2468 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2469 ret = 0;
2470 } else if (old_state == IEEE80211_STA_ASSOC &&
2471 new_state == IEEE80211_STA_AUTH) {
2472 ret = 0;
2473 } else if (old_state == IEEE80211_STA_AUTH &&
2474 new_state == IEEE80211_STA_NONE) {
2475 ret = 0;
2476 } else if (old_state == IEEE80211_STA_NONE &&
2477 new_state == IEEE80211_STA_NOTEXIST) {
2478 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2479 if (sta->tdls)
2480 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2481 } else {
2482 ret = -EIO;
2483 }
48bc1307 2484 out_unlock:
8ca151b5
JB		 2485 mutex_unlock(&mvm->mutex);
2486
9c126cd6
LK		 2487 if (sta->tdls && ret == 0) {
2488 if (old_state == IEEE80211_STA_NOTEXIST &&
2489 new_state == IEEE80211_STA_NONE)
2490 ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2491 else if (old_state == IEEE80211_STA_NONE &&
2492 new_state == IEEE80211_STA_NOTEXIST)
2493 ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
2494 }
2495
8ca151b5
JB		 2496 return ret;
2497}
2498
2499static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2500{
2501 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2502
2503 mvm->rts_threshold = value;
2504
2505 return 0;
2506}
2507
1f3b0ff8
LE		 2508static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2509 struct ieee80211_vif *vif,
2510 struct ieee80211_sta *sta, u32 changed)
2511{
2512 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2513
2514 if (vif->type == NL80211_IFTYPE_STATION &&
2515 changed & IEEE80211_RC_NSS_CHANGED)
2516 iwl_mvm_sf_update(mvm, vif, false);
2517}
2518
8ca151b5
JB		 2519static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2520 struct ieee80211_vif *vif, u16 ac,
2521 const struct ieee80211_tx_queue_params *params)
2522{
2523 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2524 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2525
2526 mvmvif->queue_params[ac] = *params;
2527
2528 /*
2529 * No need to update right away, we'll get BSS_CHANGED_QOS
2530 * The exception is P2P_DEVICE interface which needs immediate update.
2531 */
2532 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2533 int ret;
2534
2535 mutex_lock(&mvm->mutex);
3dfd3a97 2536 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2537 mutex_unlock(&mvm->mutex);
2538 return ret;
2539 }
2540 return 0;
2541}
2542
2543static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2544 struct ieee80211_vif *vif)
2545{
2546 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2547 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2548 200 + vif->bss_conf.beacon_int);
2549 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2550 100 + vif->bss_conf.beacon_int);
2551
2552 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2553 return;
2554
576eeee9
EP		 2555 /*
2556 * iwl_mvm_protect_session() reads directly from the device
2557 * (the system time), so make sure it is available.
2558 */
2559 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2560 return;
2561
8ca151b5
JB		 2562 mutex_lock(&mvm->mutex);
2563 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2564 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2565 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2566
2567 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2568}
2569
35a000b7
DS		 2570static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2571 struct ieee80211_vif *vif,
2572 struct cfg80211_sched_scan_request *req,
633e2713 2573 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2574{
2575 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2576 int ret;
2577
d2496221
DS		 2578 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2579 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2580 if (ret)
2581 return ret;
2582 }
4660dfbb 2583
35a000b7
DS		 2584 mutex_lock(&mvm->mutex);
2585
1f940386 2586 if (!vif->bss_conf.idle) {
bd5e4744
DS		 2587 ret = -EBUSY;
2588 goto out;
2589 }
2590
4660dfbb 2591 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2592 ret = -EBUSY;
2593 goto out;
2594 }
2595
b141c235 2596 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2597 if (ret)
b141c235 2598 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2599
35a000b7
DS		 2600out:
2601 mutex_unlock(&mvm->mutex);
2602 return ret;
2603}
2604
37e3308c
JB		 2605static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2606 struct ieee80211_vif *vif)
35a000b7
DS		 2607{
2608 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2609 int ret;
35a000b7
DS		 2610
2611 mutex_lock(&mvm->mutex);
fb98be5e 2612 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2613 mutex_unlock(&mvm->mutex);
33ea27f6 2614 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2615
33ea27f6 2616 return ret;
d2496221 2617
35a000b7
DS		 2618}
2619
8ca151b5
JB		 2620static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2621 enum set_key_cmd cmd,
2622 struct ieee80211_vif *vif,
2623 struct ieee80211_sta *sta,
2624 struct ieee80211_key_conf *key)
2625{
2626 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2627 int ret;
2628
2629 if (iwlwifi_mod_params.sw_crypto) {
2630 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2631 return -EOPNOTSUPP;
2632 }
2633
2634 switch (key->cipher) {
2635 case WLAN_CIPHER_SUITE_TKIP:
2636 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2637 /* fall-through */
2638 case WLAN_CIPHER_SUITE_CCMP:
2639 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2640 break;
2641 case WLAN_CIPHER_SUITE_AES_CMAC:
2642 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2643 break;
2644 case WLAN_CIPHER_SUITE_WEP40:
2645 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2646 /* For non-client mode, only use WEP keys for TX as we probably
2647 * don't have a station yet anyway and would then have to keep
2648 * track of the keys, linking them to each of the clients/peers
2649 * as they appear. For now, don't do that, for performance WEP
2650 * offload doesn't really matter much, but we need it for some
2651 * other offload features in client mode.
8ca151b5 2652 */
ba3943b0
JB		 2653 if (vif->type != NL80211_IFTYPE_STATION)
2654 return 0;
2655 break;
8ca151b5 2656 default:
e36e5433
MS		 2657 /* currently FW supports only one optional cipher scheme */
2658 if (hw->n_cipher_schemes &&
2659 hw->cipher_schemes->cipher == key->cipher)
2660 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2661 else
2662 return -EOPNOTSUPP;
8ca151b5
JB		 2663 }
2664
2665 mutex_lock(&mvm->mutex);
2666
2667 switch (cmd) {
2668 case SET_KEY:
5023d966
JB		 2669 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2670 vif->type == NL80211_IFTYPE_AP) && !sta) {
2671 /*
2672 * GTK on AP interface is a TX-only key, return 0;
2673 * on IBSS they're per-station and because we're lazy
2674 * we don't support them for RX, so do the same.
2675 */
6caffd4f
JB		 2676 ret = 0;
2677 key->hw_key_idx = STA_KEY_IDX_INVALID;
2678 break;
2679 }
2680
8ca151b5
JB		 2681 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2682 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2683 if (ret) {
2684 IWL_WARN(mvm, "set key failed\n");
2685 /*
2686 * can't add key for RX, but we don't need it
2687 * in the device for TX so still return 0
2688 */
6caffd4f 2689 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2690 ret = 0;
2691 }
2692
2693 break;
2694 case DISABLE_KEY:
6caffd4f
JB		 2695 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2696 ret = 0;
2697 break;
2698 }
2699
8ca151b5
JB		 2700 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2701 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2702 break;
2703 default:
2704 ret = -EINVAL;
2705 }
2706
2707 mutex_unlock(&mvm->mutex);
2708 return ret;
2709}
2710
2711static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2712 struct ieee80211_vif *vif,
2713 struct ieee80211_key_conf *keyconf,
2714 struct ieee80211_sta *sta,
2715 u32 iv32, u16 *phase1key)
2716{
2717 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2718
5023d966
JB		 2719 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2720 return;
2721
8ca151b5
JB		 2722 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2723}
2724
2725
b112889c
AM		 2726static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2727 struct iwl_rx_packet *pkt, void *data)
2728{
2729 struct iwl_mvm *mvm =
2730 container_of(notif_wait, struct iwl_mvm, notif_wait);
2731 struct iwl_hs20_roc_res *resp;
2732 int resp_len = iwl_rx_packet_payload_len(pkt);
2733 struct iwl_mvm_time_event_data *te_data = data;
2734
2735 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2736 return true;
2737
2738 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2739 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2740 return true;
2741 }
2742
2743 resp = (void *)pkt->data;
2744
2745 IWL_DEBUG_TE(mvm,
2746 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2747 resp->status, resp->event_unique_id);
2748
2749 te_data->uid = le32_to_cpu(resp->event_unique_id);
2750 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2751 te_data->uid);
2752
2753 spin_lock_bh(&mvm->time_event_lock);
2754 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2755 spin_unlock_bh(&mvm->time_event_lock);
2756
2757 return true;
2758}
2759
2760#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2761static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2762 struct ieee80211_channel *channel,
2763 struct ieee80211_vif *vif,
2764 int duration)
2765{
2766 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2767 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2768 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2769 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2770 struct iwl_notification_wait wait_time_event;
2771 struct iwl_hs20_roc_req aux_roc_req = {
2772 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2773 .id_and_color =
2774 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2775 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2776 /* Set the channel info data */
2777 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2778 PHY_BAND_24 : PHY_BAND_5,
2779 .channel_info.channel = channel->hw_value,
2780 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2781 /* Set the time and duration */
2782 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2783 .apply_time_max_delay =
2784 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2785 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2786 };
2787
2788 /* Set the node address */
2789 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2790
a6cc5163
MG		 2791 lockdep_assert_held(&mvm->mutex);
2792
2793 spin_lock_bh(&mvm->time_event_lock);
2794
2795 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2796 spin_unlock_bh(&mvm->time_event_lock);
2797 return -EIO;
2798 }
2799
b112889c
AM		 2800 te_data->vif = vif;
2801 te_data->duration = duration;
2802 te_data->id = HOT_SPOT_CMD;
2803
b112889c
AM		 2804 spin_unlock_bh(&mvm->time_event_lock);
2805
2806 /*
2807 * Use a notification wait, which really just processes the
2808 * command response and doesn't wait for anything, in order
2809 * to be able to process the response and get the UID inside
2810 * the RX path. Using CMD_WANT_SKB doesn't work because it
2811 * stores the buffer and then wakes up this thread, by which
2812 * time another notification (that the time event started)
2813 * might already be processed unsuccessfully.
2814 */
2815 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2816 time_event_response,
2817 ARRAY_SIZE(time_event_response),
2818 iwl_mvm_rx_aux_roc, te_data);
2819
2820 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2821 &aux_roc_req);
2822
2823 if (res) {
2824 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2825 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2826 goto out_clear_te;
2827 }
2828
2829 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2830 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2831 /* should never fail */
2832 WARN_ON_ONCE(res);
2833
2834 if (res) {
2835 out_clear_te:
2836 spin_lock_bh(&mvm->time_event_lock);
2837 iwl_mvm_te_clear_data(mvm, te_data);
2838 spin_unlock_bh(&mvm->time_event_lock);
2839 }
2840
2841 return res;
2842}
2843
8ca151b5
JB		 2844static int iwl_mvm_roc(struct ieee80211_hw *hw,
2845 struct ieee80211_vif *vif,
2846 struct ieee80211_channel *channel,
d339d5ca
IP		 2847 int duration,
2848 enum ieee80211_roc_type type)
8ca151b5
JB		 2849{
2850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2852 struct cfg80211_chan_def chandef;
31d385ae
IP		 2853 struct iwl_mvm_phy_ctxt *phy_ctxt;
2854 int ret, i;
2855
2856 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2857 duration, type);
8ca151b5 2858
a6cc5163
MG		 2859 mutex_lock(&mvm->mutex);
2860
b112889c
AM		 2861 switch (vif->type) {
2862 case NL80211_IFTYPE_STATION:
5ac6c72e
LC		 2863 if (mvm->fw->ucode_capa.capa[0] &
2864 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT) {
2865 /* Use aux roc framework (HS20) */
2866 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2867 vif, duration);
2868 goto out_unlock;
2869 }
2870 IWL_ERR(mvm, "hotspot not supported\n");
2871 ret = -EINVAL;
a6cc5163 2872 goto out_unlock;
b112889c
AM		 2873 case NL80211_IFTYPE_P2P_DEVICE:
2874 /* handle below */
2875 break;
2876 default:
2877 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2878 ret = -EINVAL;
2879 goto out_unlock;
8ca151b5
JB		 2880 }
2881
31d385ae
IP		 2882 for (i = 0; i < NUM_PHY_CTX; i++) {
2883 phy_ctxt = &mvm->phy_ctxts[i];
2884 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2885 continue;
2886
2887 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2888 /*
2889 * Unbind the P2P_DEVICE from the current PHY context,
2890 * and if the PHY context is not used remove it.
2891 */
2892 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2893 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2894 goto out_unlock;
2895
2896 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2897
2898 /* Bind the P2P_DEVICE to the current PHY Context */
2899 mvmvif->phy_ctxt = phy_ctxt;
2900
2901 ret = iwl_mvm_binding_add_vif(mvm, vif);
2902 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2903 goto out_unlock;
2904
2905 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2906 goto schedule_time_event;
2907 }
2908 }
2909
2910 /* Need to update the PHY context only if the ROC channel changed */
2911 if (channel == mvmvif->phy_ctxt->channel)
2912 goto schedule_time_event;
2913
8ca151b5 2914 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2915
31d385ae
IP		 2916 /*
2917 * Change the PHY context configuration as it is currently referenced
2918 * only by the P2P Device MAC
2919 */
2920 if (mvmvif->phy_ctxt->ref == 1) {
2921 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2922 &chandef, 1, 1);
2923 if (ret)
2924 goto out_unlock;
2925 } else {
2926 /*
2927 * The PHY context is shared with other MACs. Need to remove the
2928 * P2P Device from the binding, allocate an new PHY context and
2929 * create a new binding
2930 */
2931 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2932 if (!phy_ctxt) {
2933 ret = -ENOSPC;
2934 goto out_unlock;
2935 }
2936
2937 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2938 1, 1);
2939 if (ret) {
2940 IWL_ERR(mvm, "Failed to change PHY context\n");
2941 goto out_unlock;
2942 }
2943
2944 /* Unbind the P2P_DEVICE from the current PHY context */
2945 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2946 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2947 goto out_unlock;
2948
2949 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2950
2951 /* Bind the P2P_DEVICE to the new allocated PHY context */
2952 mvmvif->phy_ctxt = phy_ctxt;
2953
2954 ret = iwl_mvm_binding_add_vif(mvm, vif);
2955 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2956 goto out_unlock;
2957
2958 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2959 }
2960
2961schedule_time_event:
8ca151b5 2962 /* Schedule the time events */
e635c797 2963 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2964
31d385ae 2965out_unlock:
8ca151b5
JB		 2966 mutex_unlock(&mvm->mutex);
2967 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2968 return ret;
2969}
2970
2971static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2972{
2973 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2974
2975 IWL_DEBUG_MAC80211(mvm, "enter\n");
2976
2977 mutex_lock(&mvm->mutex);
bf5da87f 2978 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2979 mutex_unlock(&mvm->mutex);
2980
2981 IWL_DEBUG_MAC80211(mvm, "leave\n");
2982 return 0;
2983}
2984
b08c1d97
LC		 2985static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2986 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2987{
fe0f2de3
IP		 2988 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2989 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2990 int ret;
2991
b08c1d97
LC		 2992 lockdep_assert_held(&mvm->mutex);
2993
53a9d61e 2994 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2995
fe0f2de3
IP		 2996 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2997 if (!phy_ctxt) {
2998 ret = -ENOSPC;
2999 goto out;
3000 }
8ca151b5 3001
dcbc3e1a 3002 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 3003 ctx->rx_chains_static,
3004 ctx->rx_chains_dynamic);
fe0f2de3
IP		 3005 if (ret) {
3006 IWL_ERR(mvm, "Failed to add PHY context\n");
3007 goto out;
3008 }
3009
53a9d61e 3010 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 3011 *phy_ctxt_id = phy_ctxt->id;
3012out:
b08c1d97
LC		 3013 return ret;
3014}
3015
3016static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
3017 struct ieee80211_chanctx_conf *ctx)
3018{
3019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3020 int ret;
3021
3022 mutex_lock(&mvm->mutex);
3023 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 3024 mutex_unlock(&mvm->mutex);
b08c1d97 3025
8ca151b5
JB		 3026 return ret;
3027}
3028
b08c1d97
LC		 3029static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
3030 struct ieee80211_chanctx_conf *ctx)
3031{
3032 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3033 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
3034
3035 lockdep_assert_held(&mvm->mutex);
3036
3037 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
3038}
3039
8ca151b5
JB		 3040static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
3041 struct ieee80211_chanctx_conf *ctx)
3042{
3043 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 3044
3045 mutex_lock(&mvm->mutex);
b08c1d97 3046 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 3047 mutex_unlock(&mvm->mutex);
3048}
3049
3050static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
3051 struct ieee80211_chanctx_conf *ctx,
3052 u32 changed)
3053{
3054 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 3055 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3056 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 3057
31d385ae
IP		 3058 if (WARN_ONCE((phy_ctxt->ref > 1) &&
3059 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
3060 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 3061 IEEE80211_CHANCTX_CHANGE_RADAR |
3062 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 3063 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3064 phy_ctxt->ref, changed))
3065 return;
3066
8ca151b5 3067 mutex_lock(&mvm->mutex);
4d66449a 3068 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 3069 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 3070 ctx->rx_chains_static,
3071 ctx->rx_chains_dynamic);
3072 mutex_unlock(&mvm->mutex);
3073}
3074
b08c1d97
LC		 3075static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
3076 struct ieee80211_vif *vif,
f0c97783
LC		 3077 struct ieee80211_chanctx_conf *ctx,
3078 bool switching_chanctx)
8ca151b5 3079{
fe0f2de3
IP		 3080 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
3081 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 3082 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3083 int ret;
3084
b08c1d97 3085 lockdep_assert_held(&mvm->mutex);
8ca151b5 3086
fe0f2de3 3087 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 3088
3089 switch (vif->type) {
3090 case NL80211_IFTYPE_AP:
4741dd04
LC		 3091 /* only needed if we're switching chanctx (i.e. during CSA) */
3092 if (switching_chanctx) {
bd3398e2
AO		 3093 mvmvif->ap_ibss_active = true;
3094 break;
3095 }
5023d966 3096 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 3097 /*
3098 * The AP binding flow is handled as part of the start_ap flow
5023d966 3099 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 3100 */
3101 ret = 0;
b08c1d97 3102 goto out;
8ca151b5 3103 case NL80211_IFTYPE_STATION:
2533edce 3104 break;
8ca151b5 3105 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 3106 /* always disable PS when a monitor interface is active */
3107 mvmvif->ps_disabled = true;
8ca151b5
JB		 3108 break;
3109 default:
3110 ret = -EINVAL;
b08c1d97 3111 goto out;
8ca151b5
JB		 3112 }
3113
3114 ret = iwl_mvm_binding_add_vif(mvm, vif);
3115 if (ret)
b08c1d97 3116 goto out;
8ca151b5
JB		 3117
3118 /*
92d85562
AB		 3119 * Power state must be updated before quotas,
3120 * otherwise fw will complain.
3121 */
999609f1 3122 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 3123
3124 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 3125 * interfaces. For the other types, the bss_info changed flow
3126 * will handle quota settings.
3127 */
3128 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 3129 mvmvif->monitor_active = true;
0166230c 3130 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 3131 if (ret)
3132 goto out_remove_binding;
3133 }
3134
bd3398e2 3135 /* Handle binding during CSA */
a57c688d 3136 if (vif->type == NL80211_IFTYPE_AP) {
0166230c 3137 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 3138 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 3139 }
3140
4741dd04 3141 if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
686e7fe1
LC		 3142 u32 duration = 2 * vif->bss_conf.beacon_int;
3143
3144 /* iwl_mvm_protect_session() reads directly from the
3145 * device (the system time), so make sure it is
3146 * available.
3147 */
3148 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
3149 if (ret)
3150 goto out_remove_binding;
3151
3152 /* Protect the session to make sure we hear the first
3153 * beacon on the new channel.
3154 */
3155 iwl_mvm_protect_session(mvm, vif, duration, duration,
3156 vif->bss_conf.beacon_int / 2,
3157 true);
3158
3159 iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
3160
a57c688d 3161 iwl_mvm_update_quotas(mvm, NULL);
0ce04ce7
LC		 3162 }
3163
b08c1d97 3164 goto out;
8ca151b5 3165
b08c1d97 3166out_remove_binding:
8ca151b5 3167 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 3168 iwl_mvm_power_update_mac(mvm);
b08c1d97 3169out:
8ca151b5
JB		 3170 if (ret)
3171 mvmvif->phy_ctxt = NULL;
3172 return ret;
3173}
b08c1d97
LC		 3174static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
3175 struct ieee80211_vif *vif,
3176 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 3177{
3178 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 3179 int ret;
8ca151b5
JB		 3180
3181 mutex_lock(&mvm->mutex);
f0c97783 3182 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 3183 mutex_unlock(&mvm->mutex);
3184
3185 return ret;
3186}
3187
3188static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
3189 struct ieee80211_vif *vif,
f0c97783
LC		 3190 struct ieee80211_chanctx_conf *ctx,
3191 bool switching_chanctx)
b08c1d97
LC		 3192{
3193 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 3194 struct ieee80211_vif *disabled_vif = NULL;
b08c1d97
LC		 3195
3196 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 3197
3198 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
3199
8ca151b5 3200 switch (vif->type) {
5023d966 3201 case NL80211_IFTYPE_ADHOC:
b08c1d97 3202 goto out;
8ca151b5 3203 case NL80211_IFTYPE_MONITOR:
1e1391ca 3204 mvmvif->monitor_active = false;
2533edce 3205 mvmvif->ps_disabled = false;
8ca151b5 3206 break;
bd3398e2
AO		 3207 case NL80211_IFTYPE_AP:
3208 /* This part is triggered only during CSA */
4741dd04 3209 if (!switching_chanctx || !mvmvif->ap_ibss_active)
b08c1d97 3210 goto out;
bd3398e2 3211
7ef0aab6
AO		 3212 mvmvif->csa_countdown = false;
3213
003e5236
AO		 3214 /* Set CS bit on all the stations */
3215 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
3216
3217 /* Save blocked iface, the timeout is set on the next beacon */
3218 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
3219
bd3398e2 3220 mvmvif->ap_ibss_active = false;
f0c97783
LC		 3221 break;
3222 case NL80211_IFTYPE_STATION:
3223 if (!switching_chanctx)
3224 break;
3225
3226 disabled_vif = vif;
3227
3dfd3a97 3228 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 3229 break;
8ca151b5
JB		 3230 default:
3231 break;
3232 }
3233
f0c97783 3234 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 3235 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 3236
b08c1d97 3237out:
a11e144e 3238 mvmvif->phy_ctxt = NULL;
999609f1 3239 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 3240}
3241
3242static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
3243 struct ieee80211_vif *vif,
3244 struct ieee80211_chanctx_conf *ctx)
3245{
3246 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3247
3248 mutex_lock(&mvm->mutex);
f0c97783 3249 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 3250 mutex_unlock(&mvm->mutex);
3251}
3252
50cc9574
LC		 3253static int
3254iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
3255 struct ieee80211_vif_chanctx_switch *vifs)
b08c1d97 3256{
b08c1d97
LC		 3257 int ret;
3258
b08c1d97 3259 mutex_lock(&mvm->mutex);
f0c97783 3260 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 3261 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
3262
3263 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
3264 if (ret) {
3265 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
3266 goto out_reassign;
3267 }
3268
f0c97783
LC		 3269 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3270 true);
b08c1d97
LC		 3271 if (ret) {
3272 IWL_ERR(mvm,
3273 "failed to assign new_ctx during channel switch\n");
3274 goto out_remove;
3275 }
3276
f697267f
AN		 3277 /* we don't support TDLS during DCM - can be caused by channel switch */
3278 if (iwl_mvm_phy_ctx_count(mvm) > 1)
3279 iwl_mvm_teardown_tdls_peers(mvm);
3280
b08c1d97
LC		 3281 goto out;
3282
3283out_remove:
3284 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
3285
3286out_reassign:
6fd1fb63 3287 if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
b08c1d97
LC		 3288 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
3289 goto out_restart;
3290 }
3291
6fd1fb63
LC		 3292 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3293 true)) {
b08c1d97
LC		 3294 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3295 goto out_restart;
3296 }
3297
3298 goto out;
3299
3300out_restart:
3301 /* things keep failing, better restart the hw */
3302 iwl_mvm_nic_restart(mvm, false);
3303
3304out:
3305 mutex_unlock(&mvm->mutex);
50cc9574
LC		 3306
3307 return ret;
3308}
3309
48a256e8
LC		 3310static int
3311iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
3312 struct ieee80211_vif_chanctx_switch *vifs)
3313{
3314 int ret;
3315
3316 mutex_lock(&mvm->mutex);
3317 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
3318
3319 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
3320 true);
3321 if (ret) {
3322 IWL_ERR(mvm,
3323 "failed to assign new_ctx during channel switch\n");
3324 goto out_reassign;
3325 }
3326
3327 goto out;
3328
3329out_reassign:
3330 if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
3331 true)) {
3332 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
3333 goto out_restart;
3334 }
3335
3336 goto out;
3337
3338out_restart:
3339 /* things keep failing, better restart the hw */
3340 iwl_mvm_nic_restart(mvm, false);
3341
3342out:
3343 mutex_unlock(&mvm->mutex);
3344
3345 return ret;
3346}
3347
50cc9574
LC		 3348static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
3349 struct ieee80211_vif_chanctx_switch *vifs,
3350 int n_vifs,
3351 enum ieee80211_chanctx_switch_mode mode)
3352{
3353 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3354 int ret;
3355
3356 /* we only support a single-vif right now */
3357 if (n_vifs > 1)
3358 return -EOPNOTSUPP;
3359
3360 switch (mode) {
3361 case CHANCTX_SWMODE_SWAP_CONTEXTS:
3362 ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
3363 break;
3364 case CHANCTX_SWMODE_REASSIGN_VIF:
48a256e8 3365 ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
50cc9574
LC		 3366 break;
3367 default:
3368 ret = -EOPNOTSUPP;
3369 break;
3370 }
3371
b08c1d97
LC		 3372 return ret;
3373}
3374
8ca151b5
JB		 3375static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
3376 struct ieee80211_sta *sta,
3377 bool set)
3378{
3379 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
9d8ce6af 3380 struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
8ca151b5
JB		 3381
3382 if (!mvm_sta || !mvm_sta->vif) {
3383 IWL_ERR(mvm, "Station is not associated to a vif\n");
3384 return -EINVAL;
3385 }
3386
3387 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3388}
3389
507cadf2
DS		 3390#ifdef CONFIG_NL80211_TESTMODE
3391static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3392 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3393 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3394 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3395};
3396
3397static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3398 struct ieee80211_vif *vif,
3399 void *data, int len)
3400{
3401 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3402 int err;
3403 u32 noa_duration;
3404
3405 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3406 if (err)
3407 return err;
3408
3409 if (!tb[IWL_MVM_TM_ATTR_CMD])
3410 return -EINVAL;
3411
3412 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3413 case IWL_MVM_TM_CMD_SET_NOA:
3414 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3415 !vif->bss_conf.enable_beacon ||
3416 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3417 return -EINVAL;
3418
3419 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3420 if (noa_duration >= vif->bss_conf.beacon_int)
3421 return -EINVAL;
3422
3423 mvm->noa_duration = noa_duration;
3424 mvm->noa_vif = vif;
3425
0166230c 3426 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3427 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3428 /* must be associated client vif - ignore authorized */
3429 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3430 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3431 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3432 return -EINVAL;
3433
3434 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3435 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3436 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3437 }
3438
3439 return -EOPNOTSUPP;
3440}
3441
3442static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3443 struct ieee80211_vif *vif,
3444 void *data, int len)
3445{
3446 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3447 int err;
3448
3449 mutex_lock(&mvm->mutex);
3450 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3451 mutex_unlock(&mvm->mutex);
3452
3453 return err;
3454}
3455#endif
3456
622e3f9b
LC		 3457static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
3458 struct ieee80211_vif *vif,
3459 struct ieee80211_channel_switch *chsw)
3460{
3461 /* By implementing this operation, we prevent mac80211 from
3462 * starting its own channel switch timer, so that we can call
3463 * ieee80211_chswitch_done() ourselves at the right time
3464 * (which is when the absence time event starts).
3465 */
3466
3467 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
3468 "dummy channel switch op\n");
3469}
3470
f028905c
LC		 3471static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
3472 struct ieee80211_vif *vif,
3473 struct ieee80211_channel_switch *chsw)
bd3398e2
AO		 3474{
3475 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3476 struct ieee80211_vif *csa_vif;
f6c34820 3477 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
dc88b4ba 3478 u32 apply_time;
f028905c 3479 int ret;
bd3398e2
AO		 3480
3481 mutex_lock(&mvm->mutex);
664322fa 3482
6b20d774 3483 IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
f028905c 3484 chsw->chandef.center_freq1);
6b20d774 3485
f35d9c55
EG		 3486 iwl_fw_dbg_trigger_simple_stop(mvm, vif, FW_DBG_TRIGGER_CHANNEL_SWITCH,
3487 NULL, 0);
3488
6b20d774
LC		 3489 switch (vif->type) {
3490 case NL80211_IFTYPE_AP:
3491 csa_vif =
3492 rcu_dereference_protected(mvm->csa_vif,
3493 lockdep_is_held(&mvm->mutex));
3494 if (WARN_ONCE(csa_vif && csa_vif->csa_active,
3495 "Another CSA is already in progress")) {
3496 ret = -EBUSY;
3497 goto out_unlock;
3498 }
3499
3500 rcu_assign_pointer(mvm->csa_vif, vif);
7ef0aab6 3501
7ef0aab6
AO		 3502 if (WARN_ONCE(mvmvif->csa_countdown,
3503 "Previous CSA countdown didn't complete")) {
3504 ret = -EBUSY;
3505 goto out_unlock;
3506 }
3507
6b20d774 3508 break;
dc88b4ba 3509 case NL80211_IFTYPE_STATION:
4500e133
LC		 3510 /* Schedule the time event to a bit before beacon 1,
3511 * to make sure we're in the new channel when the
3512 * GO/AP arrives.
3513 */
3514 apply_time = chsw->device_timestamp +
3515 ((vif->bss_conf.beacon_int * (chsw->count - 1) -
3516 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
dc88b4ba
LC		 3517
3518 if (chsw->block_tx)
3519 iwl_mvm_csa_client_absent(mvm, vif);
3520
4500e133 3521 iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
dc88b4ba 3522 apply_time);
c6e0a3e0
LC		 3523 if (mvmvif->bf_data.bf_enabled) {
3524 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3525 if (ret)
3526 goto out_unlock;
3527 }
3528
dc88b4ba 3529 break;
6b20d774
LC		 3530 default:
3531 break;
3532 }
bd3398e2 3533
f6c34820
LC		 3534 mvmvif->ps_disabled = true;
3535
3536 ret = iwl_mvm_power_update_ps(mvm);
3537 if (ret)
3538 goto out_unlock;
f028905c 3539
e198f5e7
AN		 3540 /* we won't be on this channel any longer */
3541 iwl_mvm_teardown_tdls_peers(mvm);
3542
bd3398e2
AO		 3543out_unlock:
3544 mutex_unlock(&mvm->mutex);
f028905c
LC		 3545
3546 return ret;
bd3398e2
AO		 3547}
3548
f6c34820
LC		 3549static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
3550 struct ieee80211_vif *vif)
3551{
3552 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3553 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3554 int ret;
3555
3556 mutex_lock(&mvm->mutex);
3557
a57c688d
LC		 3558 if (vif->type == NL80211_IFTYPE_STATION) {
3559 struct iwl_mvm_sta *mvmsta;
3560
3561 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
3562 mvmvif->ap_sta_id);
3563
3564 if (WARN_ON(!mvmsta)) {
3565 ret = -EIO;
3566 goto out_unlock;
3567 }
3568
3569 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
3570
3571 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
c6e0a3e0
LC		 3572
3573 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3574 if (ret)
3575 goto out_unlock;
686e7fe1
LC		 3576
3577 iwl_mvm_stop_session_protection(mvm, vif);
a57c688d
LC		 3578 }
3579
f6c34820
LC		 3580 mvmvif->ps_disabled = false;
3581
3582 ret = iwl_mvm_power_update_ps(mvm);
3583
a57c688d 3584out_unlock:
f6c34820
LC		 3585 mutex_unlock(&mvm->mutex);
3586
3587 return ret;
3588}
3589
c5b0e7c0
EG		 3590static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3591 struct ieee80211_vif *vif, u32 queues, bool drop)
3592{
3593 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3594 struct iwl_mvm_vif *mvmvif;
3595 struct iwl_mvm_sta *mvmsta;
a0f6bf2a
AN		 3596 struct ieee80211_sta *sta;
3597 int i;
3598 u32 msk = 0;
c5b0e7c0
EG		 3599
3600 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3601 return;
3602
3603 mutex_lock(&mvm->mutex);
3604 mvmvif = iwl_mvm_vif_from_mac80211(vif);
c5b0e7c0 3605
a0f6bf2a
AN		 3606 /* flush the AP-station and all TDLS peers */
3607 for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
3608 sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
3609 lockdep_is_held(&mvm->mutex));
3610 if (IS_ERR_OR_NULL(sta))
3611 continue;
3612
3613 mvmsta = iwl_mvm_sta_from_mac80211(sta);
3614 if (mvmsta->vif != vif)
3615 continue;
3616
3617 /* make sure only TDLS peers or the AP are flushed */
3618 WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
3619
3620 msk |= mvmsta->tfd_queue_msk;
480acbce 3621 }
c5b0e7c0 3622
6d440b25
EG		 3623 if (drop) {
3624 if (iwl_mvm_flush_tx_path(mvm, msk, true))
3625 IWL_ERR(mvm, "flush request fail\n");
3626 mutex_unlock(&mvm->mutex);
3627 } else {
3628 mutex_unlock(&mvm->mutex);
4e6c48e0 3629
6d440b25
EG		 3630 /* this can take a while, and we may need/want other operations
3631 * to succeed while doing this, so do it without the mutex held
3632 */
3633 iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
3634 }
c5b0e7c0
EG		 3635}
3636
91a8bcde
JB		 3637static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
3638 struct survey_info *survey)
3639{
3640 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3641 int ret;
3642
3643 memset(survey, 0, sizeof(*survey));
3644
3645 /* only support global statistics right now */
3646 if (idx != 0)
3647 return -ENOENT;
3648
3649 if (!(mvm->fw->ucode_capa.capa[0] &
3650 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3651 return -ENOENT;
3652
3653 mutex_lock(&mvm->mutex);
3654
3655 if (mvm->ucode_loaded) {
33cef925 3656 ret = iwl_mvm_request_statistics(mvm, false);
91a8bcde
JB		 3657 if (ret)
3658 goto out;
3659 }
3660
3661 survey->filled = SURVEY_INFO_TIME |
3662 SURVEY_INFO_TIME_RX |
3663 SURVEY_INFO_TIME_TX |
3664 SURVEY_INFO_TIME_SCAN;
3665 survey->time = mvm->accu_radio_stats.on_time_rf +
3666 mvm->radio_stats.on_time_rf;
3667 do_div(survey->time, USEC_PER_MSEC);
3668
3669 survey->time_rx = mvm->accu_radio_stats.rx_time +
3670 mvm->radio_stats.rx_time;
3671 do_div(survey->time_rx, USEC_PER_MSEC);
3672
3673 survey->time_tx = mvm->accu_radio_stats.tx_time +
3674 mvm->radio_stats.tx_time;
3675 do_div(survey->time_tx, USEC_PER_MSEC);
3676
3677 survey->time_scan = mvm->accu_radio_stats.on_time_scan +
3678 mvm->radio_stats.on_time_scan;
3679 do_div(survey->time_scan, USEC_PER_MSEC);
3680
3681 out:
3682 mutex_unlock(&mvm->mutex);
3683 return ret;
3684}
3685
33cef925
JB		 3686static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
3687 struct ieee80211_vif *vif,
3688 struct ieee80211_sta *sta,
3689 struct station_info *sinfo)
3690{
3691 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3692 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3693 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3694
3695 if (!(mvm->fw->ucode_capa.capa[0] &
3696 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
3697 return;
3698
3699 /* if beacon filtering isn't on mac80211 does it anyway */
3700 if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
3701 return;
3702
3703 if (!vif->bss_conf.assoc)
3704 return;
3705
3706 mutex_lock(&mvm->mutex);
3707
3708 if (mvmvif->ap_sta_id != mvmsta->sta_id)
3709 goto unlock;
3710
3711 if (iwl_mvm_request_statistics(mvm, false))
3712 goto unlock;
3713
3714 sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
3715 mvmvif->beacon_stats.accu_num_beacons;
3716 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_RX);
3717 if (mvmvif->beacon_stats.avg_signal) {
3718 /* firmware only reports a value after RXing a few beacons */
3719 sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
3720 sinfo->filled |= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
3721 }
3722 unlock:
3723 mutex_unlock(&mvm->mutex);
3724}
3725
e5209263 3726const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3727 .tx = iwl_mvm_mac_tx,
3728 .ampdu_action = iwl_mvm_mac_ampdu_action,
3729 .start = iwl_mvm_mac_start,
cf2c92d8 3730 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3731 .stop = iwl_mvm_mac_stop,
3732 .add_interface = iwl_mvm_mac_add_interface,
3733 .remove_interface = iwl_mvm_mac_remove_interface,
3734 .config = iwl_mvm_mac_config,
e59647ea 3735 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3736 .configure_filter = iwl_mvm_configure_filter,
3737 .bss_info_changed = iwl_mvm_bss_info_changed,
3738 .hw_scan = iwl_mvm_mac_hw_scan,
3739 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3740 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3741 .sta_state = iwl_mvm_mac_sta_state,
3742 .sta_notify = iwl_mvm_mac_sta_notify,
3743 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3744 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3745 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3746 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3747 .conf_tx = iwl_mvm_mac_conf_tx,
3748 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3749 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3750 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3751 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3752 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3753 .set_key = iwl_mvm_mac_set_key,
3754 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3755 .remain_on_channel = iwl_mvm_roc,
3756 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3757 .add_chanctx = iwl_mvm_add_chanctx,
3758 .remove_chanctx = iwl_mvm_remove_chanctx,
3759 .change_chanctx = iwl_mvm_change_chanctx,
3760 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3761 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3762 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3763
5023d966
JB		 3764 .start_ap = iwl_mvm_start_ap_ibss,
3765 .stop_ap = iwl_mvm_stop_ap_ibss,
3766 .join_ibss = iwl_mvm_start_ap_ibss,
3767 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3768
3769 .set_tim = iwl_mvm_set_tim,
3770
622e3f9b 3771 .channel_switch = iwl_mvm_channel_switch,
f028905c 3772 .pre_channel_switch = iwl_mvm_pre_channel_switch,
f6c34820 3773 .post_channel_switch = iwl_mvm_post_channel_switch,
bd3398e2 3774
1d3c3f63
AN		 3775 .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
3776 .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
3777 .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
3778
507cadf2
DS		 3779 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3780
8ca151b5
JB		 3781#ifdef CONFIG_PM_SLEEP
3782 /* look at d3.c */
3783 .suspend = iwl_mvm_suspend,
3784 .resume = iwl_mvm_resume,
3785 .set_wakeup = iwl_mvm_set_wakeup,
3786 .set_rekey_data = iwl_mvm_set_rekey_data,
3787#if IS_ENABLED(CONFIG_IPV6)
3788 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3789#endif
3790 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3791#endif
91a8bcde 3792 .get_survey = iwl_mvm_mac_get_survey,
33cef925 3793 .sta_statistics = iwl_mvm_mac_sta_statistics,
8ca151b5 3794};
Linux kernel - Deliverables
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