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iwlwifi: mvm: add WEP RX hardware offload support
[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"
8ca151b5
JB		 88
89static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
90 {
91 .max = 1,
8eb38710 92 .types = BIT(NL80211_IFTYPE_STATION),
8ca151b5 93 },
3c15a0fb
JB		 94 {
95 .max = 1,
8eb38710
IP		 96 .types = BIT(NL80211_IFTYPE_AP) |
97 BIT(NL80211_IFTYPE_P2P_CLIENT) |
3c15a0fb
JB		 98 BIT(NL80211_IFTYPE_P2P_GO),
99 },
100 {
101 .max = 1,
102 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
103 },
8ca151b5
JB		 104};
105
106static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
107 {
108 .num_different_channels = 1,
109 .max_interfaces = 3,
110 .limits = iwl_mvm_limits,
111 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
112 },
113};
114
f0c2646a
JB		 115#ifdef CONFIG_PM_SLEEP
116static const struct nl80211_wowlan_tcp_data_token_feature
117iwl_mvm_wowlan_tcp_token_feature = {
118 .min_len = 0,
119 .max_len = 255,
120 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
121};
122
123static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
124 .tok = &iwl_mvm_wowlan_tcp_token_feature,
125 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
129 .data_interval_max = 65535, /* __le16 in API */
130 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
131 sizeof(struct ethhdr) -
132 sizeof(struct iphdr) -
133 sizeof(struct tcphdr),
134 .seq = true,
135};
136#endif
137
77736923 138#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
2ee8f021
EP		 139/*
140 * Use the reserved field to indicate magic values.
141 * these values will only be used internally by the driver,
142 * and won't make it to the fw (reserved will be 0).
143 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
144 * be the vif's ip address. in case there is not a single
145 * ip address (0, or more than 1), this attribute will
146 * be skipped.
147 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
148 * the LSB bytes of the vif's mac address
149 */
150enum {
151 BC_FILTER_MAGIC_NONE = 0,
152 BC_FILTER_MAGIC_IP,
153 BC_FILTER_MAGIC_MAC,
154};
155
77736923
EP		 156static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
157 {
158 /* arp */
159 .discard = 0,
160 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
161 .attrs = {
162 {
163 /* frame type - arp, hw type - ethernet */
164 .offset_type =
165 BCAST_FILTER_OFFSET_PAYLOAD_START,
166 .offset = sizeof(rfc1042_header),
167 .val = cpu_to_be32(0x08060001),
168 .mask = cpu_to_be32(0xffffffff),
169 },
2ee8f021
EP		 170 {
171 /* arp dest ip */
172 .offset_type =
173 BCAST_FILTER_OFFSET_PAYLOAD_START,
174 .offset = sizeof(rfc1042_header) + 2 +
175 sizeof(struct arphdr) +
176 ETH_ALEN + sizeof(__be32) +
177 ETH_ALEN,
178 .mask = cpu_to_be32(0xffffffff),
179 /* mark it as special field */
180 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
181 },
182 },
183 },
184 {
185 /* dhcp offer bcast */
186 .discard = 0,
187 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
188 .attrs = {
189 {
190 /* udp dest port - 68 (bootp client)*/
191 .offset_type = BCAST_FILTER_OFFSET_IP_END,
192 .offset = offsetof(struct udphdr, dest),
193 .val = cpu_to_be32(0x00440000),
194 .mask = cpu_to_be32(0xffff0000),
195 },
196 {
197 /* dhcp - lsb bytes of client hw address */
198 .offset_type = BCAST_FILTER_OFFSET_IP_END,
199 .offset = 38,
200 .mask = cpu_to_be32(0xffffffff),
201 /* mark it as special field */
202 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
203 },
77736923
EP		 204 },
205 },
206 /* last filter must be empty */
207 {},
208};
209#endif
210
7498cf4c
EP		 211void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
212{
7bb426ea 213 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 214 return;
215
216 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
576eeee9
EP		 217 spin_lock_bh(&mvm->refs_lock);
218 mvm->refs[ref_type]++;
219 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 220 iwl_trans_ref(mvm->trans);
221}
222
223void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
224{
7bb426ea 225 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 226 return;
227
228 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
576eeee9
EP		 229 spin_lock_bh(&mvm->refs_lock);
230 WARN_ON(!mvm->refs[ref_type]--);
231 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 232 iwl_trans_unref(mvm->trans);
233}
234
576eeee9
EP		 235static void iwl_mvm_unref_all_except(struct iwl_mvm *mvm,
236 enum iwl_mvm_ref_type except_ref)
7498cf4c 237{
576eeee9 238 int i, j;
7498cf4c 239
7bb426ea 240 if (!iwl_mvm_is_d0i3_supported(mvm))
7498cf4c
EP		 241 return;
242
576eeee9
EP		 243 spin_lock_bh(&mvm->refs_lock);
244 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
245 if (except_ref == i || !mvm->refs[i])
7498cf4c
EP		 246 continue;
247
576eeee9
EP		 248 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d (%d)\n",
249 i, mvm->refs[i]);
250 for (j = 0; j < mvm->refs[i]; j++)
251 iwl_trans_unref(mvm->trans);
252 mvm->refs[i] = 0;
7498cf4c 253 }
576eeee9 254 spin_unlock_bh(&mvm->refs_lock);
7498cf4c
EP		 255}
256
f4cf8680
EP		 257bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
258{
259 int i;
260 bool taken = false;
261
262 if (!iwl_mvm_is_d0i3_supported(mvm))
263 return true;
264
265 spin_lock_bh(&mvm->refs_lock);
266 for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
267 if (mvm->refs[i]) {
268 taken = true;
269 break;
270 }
271 }
272 spin_unlock_bh(&mvm->refs_lock);
273
274 return taken;
275}
276
576eeee9 277int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
d40fc489
GG		 278{
279 iwl_mvm_ref(mvm, ref_type);
280
281 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
282 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status),
283 HZ)) {
284 WARN_ON_ONCE(1);
285 iwl_mvm_unref(mvm, ref_type);
286 return -EIO;
287 }
288
289 return 0;
290}
291
fe0f2de3
IP		 292static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
293{
294 int i;
295
296 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
297 for (i = 0; i < NUM_PHY_CTX; i++) {
298 mvm->phy_ctxts[i].id = i;
299 mvm->phy_ctxts[i].ref = 0;
300 }
301}
302
8ca151b5
JB		 303int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
304{
305 struct ieee80211_hw *hw = mvm->hw;
831e85f3 306 int num_mac, ret, i;
8ca151b5
JB		 307
308 /* Tell mac80211 our characteristics */
309 hw->flags = IEEE80211_HW_SIGNAL_DBM |
310 IEEE80211_HW_SPECTRUM_MGMT |
311 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
312 IEEE80211_HW_QUEUE_CONTROL |
313 IEEE80211_HW_WANT_MONITOR_VIF |
8ca151b5
JB		 314 IEEE80211_HW_SUPPORTS_PS |
315 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
d2931bbd 316 IEEE80211_HW_AMPDU_AGGREGATION |
d64048ed 317 IEEE80211_HW_TIMING_BEACON_ONLY |
147fc9be 318 IEEE80211_HW_CONNECTION_MONITOR |
b71d9c8a
IY		 319 IEEE80211_HW_CHANCTX_STA_CSA |
320 IEEE80211_HW_SUPPORTS_CLONED_SKBS;
8ca151b5 321
19e737c9 322 hw->queues = mvm->first_agg_queue;
398e8c6c 323 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
7b1dd048
EG		 324 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
325 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
326 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
8ca151b5
JB		 327 hw->rate_control_algorithm = "iwl-mvm-rs";
328
329 /*
330 * Enable 11w if advertised by firmware and software crypto
331 * is not enabled (as the firmware will interpret some mgmt
332 * packets, so enabling it with software crypto isn't safe)
333 */
334 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
335 !iwlwifi_mod_params.sw_crypto)
336 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
337
1504f48d
MC		 338 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
339 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
340 !iwlwifi_mod_params.uapsd_disable) {
341 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
4cb832d5 342 hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
1504f48d
MC		 343 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
344 }
e8e626ad 345
d2496221 346 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
effd05ac 347 mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
fb98be5e 348 hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
effd05ac
JB		 349 hw->wiphy->features |=
350 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
351 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
352 }
fb98be5e 353
8ca151b5
JB		 354 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
355 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
fe0f2de3 356 hw->chanctx_data_size = sizeof(u16);
8ca151b5
JB		 357
358 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
3c15a0fb
JB		 359 BIT(NL80211_IFTYPE_P2P_CLIENT) |
360 BIT(NL80211_IFTYPE_AP) |
361 BIT(NL80211_IFTYPE_P2P_GO) |
c13b1725
EG		 362 BIT(NL80211_IFTYPE_P2P_DEVICE) |
363 BIT(NL80211_IFTYPE_ADHOC);
5023d966 364
a2f73b6c
LR		 365 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
366 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
367 REGULATORY_DISABLE_BEACON_HINTS;
8ca151b5 368
3e56eadf
JB		 369 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
370 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
371
bd3398e2
AO		 372 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
373 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
374
8ca151b5
JB		 375 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
376 hw->wiphy->n_iface_combinations =
377 ARRAY_SIZE(iwl_mvm_iface_combinations);
378
c451e6d4 379 hw->wiphy->max_remain_on_channel_duration = 10000;
8ca151b5
JB		 380 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
381
382 /* Extract MAC address */
383 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
384 hw->wiphy->addresses = mvm->addresses;
385 hw->wiphy->n_addresses = 1;
831e85f3
IP		 386
387 /* Extract additional MAC addresses if available */
388 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
389 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
390
391 for (i = 1; i < num_mac; i++) {
392 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
8ca151b5 393 ETH_ALEN);
831e85f3 394 mvm->addresses[i].addr[5]++;
8ca151b5
JB		 395 hw->wiphy->n_addresses++;
396 }
397
fe0f2de3
IP		 398 iwl_mvm_reset_phy_ctxts(mvm);
399
48849a41 400 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm, false);
20f1a5de 401
8ca151b5
JB		 402 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
403
404 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
405 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
406 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
407 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
408 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
409 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
410
411 hw->wiphy->hw_version = mvm->trans->hw_id;
412
ade50652 413 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
8ca151b5
JB		 414 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
415 else
416 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
417
6efaaf33
EG		 418 if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 10) {
419 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
420 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
421 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
422 /* we create the 802.11 header and zero length SSID IE. */
423 hw->wiphy->max_sched_scan_ie_len =
424 SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
425 }
35a000b7 426
8ca151b5 427 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
ab480030 428 NL80211_FEATURE_LOW_PRIORITY_SCAN |
0d8614b4
EP		 429 NL80211_FEATURE_P2P_GO_OPPPS |
430 NL80211_FEATURE_DYNAMIC_SMPS |
9b5452fd
EG		 431 NL80211_FEATURE_STATIC_SMPS |
432 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
8ca151b5 433
f1daa00e
AO		 434 if (mvm->fw->ucode_capa.capa[0] &
435 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
436 hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
226bcd48
AK		 437 if (mvm->fw->ucode_capa.capa[0] &
438 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT)
439 hw->wiphy->features |= NL80211_FEATURE_QUIET;
f1daa00e 440
73897bd1
AO		 441 if (mvm->fw->ucode_capa.capa[0] &
442 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT)
443 hw->wiphy->features |=
444 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
445
446 if (mvm->fw->ucode_capa.capa[0] &
447 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT)
448 hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
449
8ca151b5
JB		 450 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
451
e36e5433 452 /* currently FW API supports only one optional cipher scheme */
9ddca860 453 if (mvm->fw->cs[0].cipher) {
e36e5433 454 mvm->hw->n_cipher_schemes = 1;
9ddca860 455 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
e36e5433
MS		 456 }
457
8ca151b5 458#ifdef CONFIG_PM_SLEEP
d15a747f
EP		 459 if (iwl_mvm_is_d0i3_supported(mvm) &&
460 device_can_wakeup(mvm->trans->dev)) {
461 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
462 hw->wiphy->wowlan = &mvm->wowlan;
463 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
8ca151b5
JB		 464 mvm->trans->ops->d3_suspend &&
465 mvm->trans->ops->d3_resume &&
466 device_can_wakeup(mvm->trans->dev)) {
964dc9e2
JB		 467 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
468 WIPHY_WOWLAN_DISCONNECT |
469 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
470 WIPHY_WOWLAN_RFKILL_RELEASE;
8ca151b5 471 if (!iwlwifi_mod_params.sw_crypto)
964dc9e2
JB		 472 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
473 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
474 WIPHY_WOWLAN_4WAY_HANDSHAKE;
475
476 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
477 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
478 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
479 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
480 hw->wiphy->wowlan = &mvm->wowlan;
8ca151b5
JB		 481 }
482#endif
483
77736923
EP		 484#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
485 /* assign default bcast filtering configuration */
486 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
487#endif
488
8ca151b5
JB		 489 ret = iwl_mvm_leds_init(mvm);
490 if (ret)
491 return ret;
492
b7327d89
EG		 493 ret = ieee80211_register_hw(mvm->hw);
494 if (ret)
495 iwl_mvm_leds_exit(mvm);
496
497 return ret;
8ca151b5
JB		 498}
499
b2492501
AN		 500static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
501 struct ieee80211_sta *sta,
502 struct sk_buff *skb)
503{
504 struct iwl_mvm_sta *mvmsta;
505 bool defer = false;
506
507 /*
508 * double check the IN_D0I3 flag both before and after
509 * taking the spinlock, in order to prevent taking
510 * the spinlock when not needed.
511 */
512 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
513 return false;
514
515 spin_lock(&mvm->d0i3_tx_lock);
516 /*
517 * testing the flag again ensures the skb dequeue
518 * loop (on d0i3 exit) hasn't run yet.
519 */
520 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
521 goto out;
522
523 mvmsta = iwl_mvm_sta_from_mac80211(sta);
524 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
525 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
526 goto out;
527
528 __skb_queue_tail(&mvm->d0i3_tx, skb);
529 ieee80211_stop_queues(mvm->hw);
530
531 /* trigger wakeup */
532 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
533 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
534
535 defer = true;
536out:
537 spin_unlock(&mvm->d0i3_tx_lock);
538 return defer;
539}
540
8ca151b5
JB		 541static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
542 struct ieee80211_tx_control *control,
543 struct sk_buff *skb)
544{
545 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3e56eadf
JB		 546 struct ieee80211_sta *sta = control->sta;
547 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
548 struct ieee80211_hdr *hdr = (void *)skb->data;
8ca151b5 549
9ee718aa
EL		 550 if (iwl_mvm_is_radio_killed(mvm)) {
551 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
8ca151b5
JB		 552 goto drop;
553 }
554
398e8c6c 555 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
a6cc5163
MG		 556 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
557 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
8ca151b5
JB		 558 goto drop;
559
3e56eadf
JB		 560 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
561 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
562 ieee80211_is_mgmt(hdr->frame_control) &&
563 !ieee80211_is_deauth(hdr->frame_control) &&
564 !ieee80211_is_disassoc(hdr->frame_control) &&
565 !ieee80211_is_action(hdr->frame_control)))
566 sta = NULL;
567
568 if (sta) {
b2492501
AN		 569 if (iwl_mvm_defer_tx(mvm, sta, skb))
570 return;
3e56eadf 571 if (iwl_mvm_tx_skb(mvm, skb, sta))
8ca151b5
JB		 572 goto drop;
573 return;
574 }
575
576 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
577 goto drop;
578 return;
579 drop:
580 ieee80211_free_txskb(hw, skb);
581}
582
205e2210
EG		 583static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
584{
585 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
586 return false;
587 return true;
588}
589
590static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
591{
592 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
593 return false;
594 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
595 return true;
596
597 /* enabled by default */
598 return true;
599}
600
8ca151b5
JB		 601static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
602 struct ieee80211_vif *vif,
603 enum ieee80211_ampdu_mlme_action action,
604 struct ieee80211_sta *sta, u16 tid,
605 u16 *ssn, u8 buf_size)
606{
607 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
608 int ret;
b2492501 609 bool tx_agg_ref = false;
8ca151b5
JB		 610
611 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
612 sta->addr, tid, action);
613
614 if (!(mvm->nvm_data->sku_cap_11n_enable))
615 return -EACCES;
616
b2492501 617 /* return from D0i3 before starting a new Tx aggregation */
9256c205
EP		 618 switch (action) {
619 case IEEE80211_AMPDU_TX_START:
620 case IEEE80211_AMPDU_TX_STOP_CONT:
621 case IEEE80211_AMPDU_TX_STOP_FLUSH:
622 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
623 case IEEE80211_AMPDU_TX_OPERATIONAL:
b2492501 624 /*
9256c205
EP		 625 * for tx start, wait synchronously until D0i3 exit to
626 * get the correct sequence number for the tid.
627 * additionally, some other ampdu actions use direct
628 * target access, which is not handled automatically
629 * by the trans layer (unlike commands), so wait for
630 * d0i3 exit in these cases as well.
b2492501 631 */
d40fc489
GG		 632 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_TX_AGG);
633 if (ret)
634 return ret;
635
636 tx_agg_ref = true;
9256c205
EP		 637 break;
638 default:
639 break;
b2492501
AN		 640 }
641
8ca151b5
JB		 642 mutex_lock(&mvm->mutex);
643
644 switch (action) {
645 case IEEE80211_AMPDU_RX_START:
205e2210 646 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
8ca151b5
JB		 647 ret = -EINVAL;
648 break;
649 }
650 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
651 break;
652 case IEEE80211_AMPDU_RX_STOP:
653 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
654 break;
655 case IEEE80211_AMPDU_TX_START:
205e2210 656 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
5d158efa
EG		 657 ret = -EINVAL;
658 break;
659 }
8ca151b5
JB		 660 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
661 break;
662 case IEEE80211_AMPDU_TX_STOP_CONT:
e3d9e7ce
EG		 663 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
664 break;
8ca151b5
JB		 665 case IEEE80211_AMPDU_TX_STOP_FLUSH:
666 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
e3d9e7ce 667 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
8ca151b5
JB		 668 break;
669 case IEEE80211_AMPDU_TX_OPERATIONAL:
670 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
671 break;
672 default:
673 WARN_ON_ONCE(1);
674 ret = -EINVAL;
675 break;
676 }
677 mutex_unlock(&mvm->mutex);
678
b2492501
AN		 679 /*
680 * If the tid is marked as started, we won't use it for offloaded
681 * traffic on the next D0i3 entry. It's safe to unref.
682 */
683 if (tx_agg_ref)
684 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
685
8ca151b5
JB		 686 return ret;
687}
688
689static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
690 struct ieee80211_vif *vif)
691{
692 struct iwl_mvm *mvm = data;
693 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
694
695 mvmvif->uploaded = false;
696 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
697
698 /* does this make sense at all? */
699 mvmvif->color++;
700
701 spin_lock_bh(&mvm->time_event_lock);
702 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
703 spin_unlock_bh(&mvm->time_event_lock);
704
fe0f2de3 705 mvmvif->phy_ctxt = NULL;
8a275bad 706 memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
8ca151b5
JB		 707}
708
aadede6e
JB		 709static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
710 const void *data, size_t datalen)
711{
712 const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
713 ssize_t bytes_read;
714 ssize_t bytes_read_trans;
715
716 if (offset < dump_ptrs->op_mode_len) {
717 bytes_read = min_t(ssize_t, count,
718 dump_ptrs->op_mode_len - offset);
719 memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
720 bytes_read);
721 offset += bytes_read;
722 count -= bytes_read;
723
724 if (count == 0)
725 return bytes_read;
726 } else {
727 bytes_read = 0;
728 }
729
730 if (!dump_ptrs->trans_ptr)
731 return bytes_read;
732
733 offset -= dump_ptrs->op_mode_len;
734 bytes_read_trans = min_t(ssize_t, count,
735 dump_ptrs->trans_ptr->len - offset);
736 memcpy(buffer + bytes_read,
737 (u8 *)dump_ptrs->trans_ptr->data + offset,
738 bytes_read_trans);
739
740 return bytes_read + bytes_read_trans;
741}
742
743static void iwl_mvm_free_coredump(const void *data)
744{
745 const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
746
747 vfree(fw_error_dump->op_mode_ptr);
748 vfree(fw_error_dump->trans_ptr);
749 kfree(fw_error_dump);
750}
751
4bfa47f3 752void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
655e6d6d
EG		 753{
754 struct iwl_fw_error_dump_file *dump_file;
755 struct iwl_fw_error_dump_data *dump_data;
756 struct iwl_fw_error_dump_info *dump_info;
48eb7b34 757 struct iwl_mvm_dump_ptrs *fw_error_dump;
655e6d6d
EG		 758 const struct fw_img *img;
759 u32 sram_len, sram_ofs;
760 u32 file_len, rxf_len;
761 unsigned long flags;
655e6d6d
EG		 762 int reg_val;
763
764 lockdep_assert_held(&mvm->mutex);
765
aadede6e 766 fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
48eb7b34
EG		 767 if (!fw_error_dump)
768 return;
769
655e6d6d
EG		 770 img = &mvm->fw->img[mvm->cur_ucode];
771 sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
772 sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
773
774 /* reading buffer size */
775 reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
776 rxf_len = (reg_val & RXF_SIZE_BYTE_CNT_MSK) >> RXF_SIZE_BYTE_CND_POS;
777
778 /* the register holds the value divided by 128 */
779 rxf_len = rxf_len << 7;
780
781 file_len = sizeof(*dump_file) +
782 sizeof(*dump_data) * 3 +
783 sram_len +
784 rxf_len +
785 sizeof(*dump_info);
786
5bfe6f53 787 dump_file = vzalloc(file_len);
48eb7b34
EG		 788 if (!dump_file) {
789 kfree(fw_error_dump);
655e6d6d 790 return;
48eb7b34 791 }
655e6d6d 792
48eb7b34 793 fw_error_dump->op_mode_ptr = dump_file;
655e6d6d
EG		 794
795 dump_file->barker = cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER);
655e6d6d
EG		 796 dump_data = (void *)dump_file->data;
797
798 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO);
799 dump_data->len = cpu_to_le32(sizeof(*dump_info));
800 dump_info = (void *) dump_data->data;
801 dump_info->device_family =
802 mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
803 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
804 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
805 memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
806 sizeof(dump_info->fw_human_readable));
807 strncpy(dump_info->dev_human_readable, mvm->cfg->name,
808 sizeof(dump_info->dev_human_readable));
809 strncpy(dump_info->bus_human_readable, mvm->dev->bus->name,
810 sizeof(dump_info->bus_human_readable));
811
812 dump_data = iwl_fw_error_next_data(dump_data);
813 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_RXF);
814 dump_data->len = cpu_to_le32(rxf_len);
815
816 if (iwl_trans_grab_nic_access(mvm->trans, false, &flags)) {
817 u32 *rxf = (void *)dump_data->data;
818 int i;
819
820 for (i = 0; i < (rxf_len / sizeof(u32)); i++) {
821 iwl_trans_write_prph(mvm->trans,
822 RXF_LD_FENCE_OFFSET_ADDR,
823 i * sizeof(u32));
824 rxf[i] = iwl_trans_read_prph(mvm->trans,
825 RXF_FIFO_RD_FENCE_ADDR);
826 }
827 iwl_trans_release_nic_access(mvm->trans, &flags);
828 }
829
830 dump_data = iwl_fw_error_next_data(dump_data);
831 dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
832 dump_data->len = cpu_to_le32(sram_len);
833 iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
834 sram_len);
835
48eb7b34
EG		 836 fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
837 fw_error_dump->op_mode_len = file_len;
838 if (fw_error_dump->trans_ptr)
839 file_len += fw_error_dump->trans_ptr->len;
840 dump_file->file_len = cpu_to_le32(file_len);
4bfa47f3 841
aadede6e
JB		 842 dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
843 GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
655e6d6d 844}
655e6d6d 845
8ca151b5
JB		 846static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
847{
58629d9d
JB		 848 /* clear the D3 reconfig, we only need it to avoid dumping a
849 * firmware coredump on reconfiguration, we shouldn't do that
850 * on D3->D0 transition
851 */
852 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
853 iwl_mvm_fw_error_dump(mvm);
1bd3cbc1 854
8ca151b5 855 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 856
857 mvm->scan_status = IWL_MVM_SCAN_NONE;
b1873300 858 mvm->ps_disabled = false;
31b8b343 859 mvm->calibrating = false;
8ca151b5
JB		 860
861 /* just in case one was running */
862 ieee80211_remain_on_channel_expired(mvm->hw);
863
864 ieee80211_iterate_active_interfaces_atomic(
865 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
866 iwl_mvm_cleanup_iterator, mvm);
867
fe0f2de3 868 mvm->p2p_device_vif = NULL;
37577fe2 869 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
fe0f2de3
IP		 870
871 iwl_mvm_reset_phy_ctxts(mvm);
8ca151b5
JB		 872 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
873 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
8a275bad
EG		 874 memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
875 memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
876 memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
877 memset(&mvm->last_bt_ci_cmd_old, 0, sizeof(mvm->last_bt_ci_cmd_old));
878 memset(&mvm->bt_ack_kill_msk, 0, sizeof(mvm->bt_ack_kill_msk));
879 memset(&mvm->bt_cts_kill_msk, 0, sizeof(mvm->bt_cts_kill_msk));
8ca151b5
JB		 880
881 ieee80211_wake_queues(mvm->hw);
882
7498cf4c
EP		 883 /* cleanup all stale references (scan, roc), but keep the
884 * ucode_down ref until reconfig is complete */
885 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
886
228670b2
EP		 887 /* clear any stale d0i3 state */
888 clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
889
8ca151b5 890 mvm->vif_count = 0;
113a0447 891 mvm->rx_ba_sessions = 0;
8ca151b5
JB		 892}
893
a0a09243 894int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
8ca151b5 895{
8ca151b5
JB		 896 int ret;
897
a0a09243 898 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 899
900 /* Clean up some internal and mac80211 state on restart */
901 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
902 iwl_mvm_restart_cleanup(mvm);
903
904 ret = iwl_mvm_up(mvm);
c47af22a
JB		 905
906 if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
907 /* Something went wrong - we need to finish some cleanup
908 * that normally iwl_mvm_mac_restart_complete() below
909 * would do.
910 */
911 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
912 iwl_mvm_d0i3_enable_tx(mvm, NULL);
913 }
914
a0a09243
LC		 915 return ret;
916}
917
918static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
919{
920 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
921 int ret;
922
923 mutex_lock(&mvm->mutex);
924 ret = __iwl_mvm_mac_start(mvm);
8ca151b5
JB		 925 mutex_unlock(&mvm->mutex);
926
927 return ret;
928}
929
cf2c92d8 930static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
8ca151b5 931{
8ca151b5
JB		 932 int ret;
933
934 mutex_lock(&mvm->mutex);
935
936 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
b2492501 937 iwl_mvm_d0i3_enable_tx(mvm, NULL);
0166230c 938 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 939 if (ret)
940 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
941 ret);
942
7498cf4c
EP		 943 /* allow transport/FW low power modes */
944 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
945
8ca151b5
JB		 946 mutex_unlock(&mvm->mutex);
947}
948
088070a2
EP		 949static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
950{
951 bool exit_now;
952
953 if (!iwl_mvm_is_d0i3_supported(mvm))
954 return;
955
956 mutex_lock(&mvm->d0i3_suspend_mutex);
957 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
958 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
959 &mvm->d0i3_suspend_flags);
960 mutex_unlock(&mvm->d0i3_suspend_mutex);
961
962 if (exit_now) {
963 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
964 _iwl_mvm_exit_d0i3(mvm);
965 }
966}
967
cf2c92d8
EP		 968static void
969iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
970 enum ieee80211_reconfig_type reconfig_type)
971{
972 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
973
974 switch (reconfig_type) {
975 case IEEE80211_RECONFIG_TYPE_RESTART:
976 iwl_mvm_restart_complete(mvm);
977 break;
978 case IEEE80211_RECONFIG_TYPE_SUSPEND:
088070a2 979 iwl_mvm_resume_complete(mvm);
cf2c92d8
EP		 980 break;
981 }
982}
983
a0a09243 984void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
8ca151b5 985{
a0a09243 986 lockdep_assert_held(&mvm->mutex);
7498cf4c
EP		 987
988 /* disallow low power states when the FW is down */
989 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
990
8ca151b5
JB		 991 /* async_handlers_wk is now blocked */
992
993 /*
994 * The work item could be running or queued if the
995 * ROC time event stops just as we get here.
996 */
997 cancel_work_sync(&mvm->roc_done_wk);
998
999 iwl_trans_stop_device(mvm->trans);
8ca151b5
JB		 1000
1001 iwl_mvm_async_handlers_purge(mvm);
1002 /* async_handlers_list is empty and will stay empty: HW is stopped */
1003
1004 /* the fw is stopped, the aux sta is dead: clean up driver state */
712b24ad 1005 iwl_mvm_del_aux_sta(mvm);
8ca151b5 1006
bc44886d 1007 mvm->ucode_loaded = false;
a0a09243 1008}
bc44886d 1009
a0a09243
LC		 1010static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1011{
1012 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1013
1014 flush_work(&mvm->d0i3_exit_work);
1015 flush_work(&mvm->async_handlers_wk);
4bfa47f3 1016 flush_work(&mvm->fw_error_dump_wk);
a0a09243
LC		 1017
1018 mutex_lock(&mvm->mutex);
1019 __iwl_mvm_mac_stop(mvm);
8ca151b5
JB		 1020 mutex_unlock(&mvm->mutex);
1021
1022 /*
1023 * The worker might have been waiting for the mutex, let it run and
1024 * discover that its list is now empty.
1025 */
1026 cancel_work_sync(&mvm->async_handlers_wk);
1027}
1028
fe0f2de3
IP		 1029static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1030{
1031 u16 i;
1032
1033 lockdep_assert_held(&mvm->mutex);
1034
1035 for (i = 0; i < NUM_PHY_CTX; i++)
1036 if (!mvm->phy_ctxts[i].ref)
1037 return &mvm->phy_ctxts[i];
1038
1039 IWL_ERR(mvm, "No available PHY context\n");
1040 return NULL;
1041}
1042
ee9c6cb0
EG		 1043static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1044 s8 tx_power)
1045{
1046 /* FW is in charge of regulatory enforcement */
1047 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
1048 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
1049 .pwr_restriction = cpu_to_le16(tx_power),
1050 };
1051
a1022927 1052 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
ee9c6cb0
EG		 1053 sizeof(reduce_txpwr_cmd),
1054 &reduce_txpwr_cmd);
1055}
1056
8ca151b5
JB		 1057static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1058 struct ieee80211_vif *vif)
1059{
1060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1061 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1062 int ret;
1063
d40fc489
GG		 1064 /*
1065 * make sure D0i3 exit is completed, otherwise a target access
1066 * during tx queue configuration could be done when still in
1067 * D0i3 state.
1068 */
1069 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_ADD_IF);
1070 if (ret)
1071 return ret;
1072
8ca151b5
JB		 1073 /*
1074 * Not much to do here. The stack will not allow interface
1075 * types or combinations that we didn't advertise, so we
1076 * don't really have to check the types.
1077 */
1078
1079 mutex_lock(&mvm->mutex);
1080
e89044d7 1081 /* Allocate resources for the MAC context, and add it to the fw */
8ca151b5
JB		 1082 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1083 if (ret)
1084 goto out_unlock;
1085
1c2abf72 1086 /* Counting number of interfaces is needed for legacy PM */
ea183d02
IP		 1087 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1088 mvm->vif_count++;
ea183d02 1089
8ca151b5
JB		 1090 /*
1091 * The AP binding flow can be done only after the beacon
1092 * template is configured (which happens only in the mac80211
1093 * start_ap() flow), and adding the broadcast station can happen
1094 * only after the binding.
1095 * In addition, since modifying the MAC before adding a bcast
1096 * station is not allowed by the FW, delay the adding of MAC context to
1097 * the point where we can also add the bcast station.
1098 * In short: there's not much we can do at this point, other than
1099 * allocating resources :)
1100 */
5023d966
JB		 1101 if (vif->type == NL80211_IFTYPE_AP ||
1102 vif->type == NL80211_IFTYPE_ADHOC) {
013290aa 1103 ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1104 if (ret) {
1105 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1106 goto out_release;
1107 }
1108
77740cb4 1109 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1110 goto out_unlock;
1111 }
1112
8ca151b5
JB		 1113 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1114 if (ret)
1115 goto out_release;
1116
999609f1 1117 ret = iwl_mvm_power_update_mac(mvm);
e5e7aa8e
EG		 1118 if (ret)
1119 goto out_release;
8ca151b5 1120
7df15b1e 1121 /* beacon filtering */
a1022927 1122 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
bd3351ba
EP		 1123 if (ret)
1124 goto out_remove_mac;
1125
7df15b1e 1126 if (!mvm->bf_allowed_vif &&
73e5f2c5 1127 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
7df15b1e 1128 mvm->bf_allowed_vif = mvmvif;
a20fd398
AO		 1129 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1130 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
7df15b1e
HG		 1131 }
1132
8ca151b5
JB		 1133 /*
1134 * P2P_DEVICE interface does not have a channel context assigned to it,
1135 * so a dedicated PHY context is allocated to it and the corresponding
1136 * MAC context is bound to it at this stage.
1137 */
1138 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
8ca151b5 1139
fe0f2de3
IP		 1140 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1141 if (!mvmvif->phy_ctxt) {
1142 ret = -ENOSPC;
bd3351ba 1143 goto out_free_bf;
fe0f2de3 1144 }
8ca151b5 1145
53a9d61e 1146 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1147 ret = iwl_mvm_binding_add_vif(mvm, vif);
1148 if (ret)
53a9d61e 1149 goto out_unref_phy;
8ca151b5 1150
013290aa 1151 ret = iwl_mvm_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1152 if (ret)
1153 goto out_unbind;
1154
1155 /* Save a pointer to p2p device vif, so it can later be used to
1156 * update the p2p device MAC when a GO is started/stopped */
1157 mvm->p2p_device_vif = vif;
1158 }
1159
63494374 1160 iwl_mvm_vif_dbgfs_register(mvm, vif);
8ca151b5
JB		 1161 goto out_unlock;
1162
1163 out_unbind:
1164 iwl_mvm_binding_remove_vif(mvm, vif);
53a9d61e 1165 out_unref_phy:
fe0f2de3 1166 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
bd3351ba
EP		 1167 out_free_bf:
1168 if (mvm->bf_allowed_vif == mvmvif) {
1169 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1170 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1171 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
bd3351ba 1172 }
8ca151b5
JB		 1173 out_remove_mac:
1174 mvmvif->phy_ctxt = NULL;
1175 iwl_mvm_mac_ctxt_remove(mvm, vif);
1176 out_release:
5ee2b215
AB		 1177 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1178 mvm->vif_count--;
1c2abf72 1179
8ca151b5
JB		 1180 iwl_mvm_mac_ctxt_release(mvm, vif);
1181 out_unlock:
1182 mutex_unlock(&mvm->mutex);
1183
d40fc489
GG		 1184 iwl_mvm_unref(mvm, IWL_MVM_REF_ADD_IF);
1185
8ca151b5
JB		 1186 return ret;
1187}
1188
38a12b5b
JB		 1189static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1190 struct ieee80211_vif *vif)
8ca151b5 1191{
d92b732e 1192 u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
8ca151b5
JB		 1193
1194 if (tfd_msk) {
1195 mutex_lock(&mvm->mutex);
1196 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
1197 mutex_unlock(&mvm->mutex);
1198 }
1199
1200 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1201 /*
1202 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1203 * We assume here that all the packets sent to the OFFCHANNEL
1204 * queue are sent in ROC session.
1205 */
1206 flush_work(&mvm->roc_done_wk);
1207 } else {
1208 /*
1209 * By now, all the AC queues are empty. The AGG queues are
1210 * empty too. We already got all the Tx responses for all the
1211 * packets in the queues. The drain work can have been
0742a75a 1212 * triggered. Flush it.
8ca151b5
JB		 1213 */
1214 flush_work(&mvm->sta_drained_wk);
1215 }
38a12b5b
JB		 1216}
1217
1218static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1219 struct ieee80211_vif *vif)
1220{
1221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1222 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1223
1224 iwl_mvm_prepare_mac_removal(mvm, vif);
8ca151b5
JB		 1225
1226 mutex_lock(&mvm->mutex);
1227
7df15b1e
HG		 1228 if (mvm->bf_allowed_vif == mvmvif) {
1229 mvm->bf_allowed_vif = NULL;
a20fd398
AO		 1230 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1231 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
7df15b1e
HG		 1232 }
1233
63494374
JB		 1234 iwl_mvm_vif_dbgfs_clean(mvm, vif);
1235
8ca151b5
JB		 1236 /*
1237 * For AP/GO interface, the tear down of the resources allocated to the
38a12b5b 1238 * interface is be handled as part of the stop_ap flow.
8ca151b5 1239 */
5023d966
JB		 1240 if (vif->type == NL80211_IFTYPE_AP ||
1241 vif->type == NL80211_IFTYPE_ADHOC) {
507cadf2
DS		 1242#ifdef CONFIG_NL80211_TESTMODE
1243 if (vif == mvm->noa_vif) {
1244 mvm->noa_vif = NULL;
1245 mvm->noa_duration = 0;
1246 }
1247#endif
013290aa 1248 iwl_mvm_dealloc_bcast_sta(mvm, vif);
8ca151b5
JB		 1249 goto out_release;
1250 }
1251
1252 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1253 mvm->p2p_device_vif = NULL;
013290aa 1254 iwl_mvm_rm_bcast_sta(mvm, vif);
8ca151b5 1255 iwl_mvm_binding_remove_vif(mvm, vif);
fe0f2de3 1256 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
8ca151b5
JB		 1257 mvmvif->phy_ctxt = NULL;
1258 }
1259
5ee2b215 1260 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
8ca151b5 1261 mvm->vif_count--;
1c2abf72 1262
999609f1 1263 iwl_mvm_power_update_mac(mvm);
8ca151b5
JB		 1264 iwl_mvm_mac_ctxt_remove(mvm, vif);
1265
1266out_release:
1267 iwl_mvm_mac_ctxt_release(mvm, vif);
1268 mutex_unlock(&mvm->mutex);
1269}
1270
1271static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
88f2fd73 1272{
8ca151b5
JB		 1273 return 0;
1274}
1275
e59647ea
EP		 1276struct iwl_mvm_mc_iter_data {
1277 struct iwl_mvm *mvm;
1278 int port_id;
1279};
1280
1281static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1282 struct ieee80211_vif *vif)
1283{
1284 struct iwl_mvm_mc_iter_data *data = _data;
1285 struct iwl_mvm *mvm = data->mvm;
1286 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1287 int ret, len;
1288
1289 /* if we don't have free ports, mcast frames will be dropped */
1290 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1291 return;
1292
1293 if (vif->type != NL80211_IFTYPE_STATION ||
1294 !vif->bss_conf.assoc)
1295 return;
1296
1297 cmd->port_id = data->port_id++;
1298 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1299 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1300
1c4abec0 1301 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
e59647ea
EP		 1302 if (ret)
1303 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1304}
1305
1306static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1307{
1308 struct iwl_mvm_mc_iter_data iter_data = {
1309 .mvm = mvm,
88f2fd73
MG		 1310 };
1311
e59647ea
EP		 1312 lockdep_assert_held(&mvm->mutex);
1313
1314 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1315 return;
1316
1c4abec0 1317 ieee80211_iterate_active_interfaces_atomic(
e59647ea
EP		 1318 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1319 iwl_mvm_mc_iface_iterator, &iter_data);
88f2fd73
MG		 1320}
1321
e59647ea
EP		 1322static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1323 struct netdev_hw_addr_list *mc_list)
8ca151b5 1324{
e59647ea
EP		 1325 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1326 struct iwl_mcast_filter_cmd *cmd;
1327 struct netdev_hw_addr *addr;
f3bd58f4
MS		 1328 int addr_count;
1329 bool pass_all;
e59647ea
EP		 1330 int len;
1331
f3bd58f4
MS		 1332 addr_count = netdev_hw_addr_list_count(mc_list);
1333 pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1334 IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1335 if (pass_all)
e59647ea 1336 addr_count = 0;
e59647ea
EP		 1337
1338 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1339 cmd = kzalloc(len, GFP_ATOMIC);
1340 if (!cmd)
1341 return 0;
1342
1343 if (pass_all) {
1344 cmd->pass_all = 1;
1345 return (u64)(unsigned long)cmd;
1346 }
1347
1348 netdev_hw_addr_list_for_each(addr, mc_list) {
1349 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1350 cmd->count, addr->addr);
1351 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1352 addr->addr, ETH_ALEN);
1353 cmd->count++;
1354 }
1355
1356 return (u64)(unsigned long)cmd;
8ca151b5
JB		 1357}
1358
1359static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1360 unsigned int changed_flags,
1361 unsigned int *total_flags,
1362 u64 multicast)
1363{
e59647ea
EP		 1364 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1365 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
8ca151b5 1366
e59647ea 1367 mutex_lock(&mvm->mutex);
51b6b9e0 1368
e59647ea
EP		 1369 /* replace previous configuration */
1370 kfree(mvm->mcast_filter_cmd);
1371 mvm->mcast_filter_cmd = cmd;
51b6b9e0 1372
e59647ea
EP		 1373 if (!cmd)
1374 goto out;
51b6b9e0 1375
e59647ea
EP		 1376 iwl_mvm_recalc_multicast(mvm);
1377out:
1378 mutex_unlock(&mvm->mutex);
1379 *total_flags = 0;
51b6b9e0
EG		 1380}
1381
c87163b9
EP		 1382#ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1383struct iwl_bcast_iter_data {
1384 struct iwl_mvm *mvm;
1385 struct iwl_bcast_filter_cmd *cmd;
1386 u8 current_filter;
1387};
1388
1389static void
1390iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1391 const struct iwl_fw_bcast_filter *in_filter,
1392 struct iwl_fw_bcast_filter *out_filter)
1393{
1394 struct iwl_fw_bcast_filter_attr *attr;
1395 int i;
1396
1397 memcpy(out_filter, in_filter, sizeof(*out_filter));
1398
1399 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1400 attr = &out_filter->attrs[i];
1401
1402 if (!attr->mask)
1403 break;
1404
2ee8f021
EP		 1405 switch (attr->reserved1) {
1406 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1407 if (vif->bss_conf.arp_addr_cnt != 1) {
1408 attr->mask = 0;
1409 continue;
1410 }
1411
1412 attr->val = vif->bss_conf.arp_addr_list[0];
1413 break;
1414 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1415 attr->val = *(__be32 *)&vif->addr[2];
1416 break;
1417 default:
1418 break;
1419 }
1420 attr->reserved1 = 0;
c87163b9
EP		 1421 out_filter->num_attrs++;
1422 }
1423}
1424
1425static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1426 struct ieee80211_vif *vif)
1427{
1428 struct iwl_bcast_iter_data *data = _data;
1429 struct iwl_mvm *mvm = data->mvm;
1430 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1431 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1432 struct iwl_fw_bcast_mac *bcast_mac;
1433 int i;
1434
1435 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1436 return;
1437
1438 bcast_mac = &cmd->macs[mvmvif->id];
1439
e48393e8
IP		 1440 /*
1441 * enable filtering only for associated stations, but not for P2P
1442 * Clients
1443 */
1444 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p ||
1445 !vif->bss_conf.assoc)
c87163b9
EP		 1446 return;
1447
1448 bcast_mac->default_discard = 1;
1449
1450 /* copy all configured filters */
1451 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1452 /*
1453 * Make sure we don't exceed our filters limit.
1454 * if there is still a valid filter to be configured,
1455 * be on the safe side and just allow bcast for this mac.
1456 */
1457 if (WARN_ON_ONCE(data->current_filter >=
1458 ARRAY_SIZE(cmd->filters))) {
1459 bcast_mac->default_discard = 0;
1460 bcast_mac->attached_filters = 0;
1461 break;
1462 }
1463
1464 iwl_mvm_set_bcast_filter(vif,
1465 &mvm->bcast_filters[i],
1466 &cmd->filters[data->current_filter]);
1467
1468 /* skip current filter if it contains no attributes */
1469 if (!cmd->filters[data->current_filter].num_attrs)
1470 continue;
1471
1472 /* attach the filter to current mac */
1473 bcast_mac->attached_filters |=
1474 cpu_to_le16(BIT(data->current_filter));
1475
1476 data->current_filter++;
1477 }
1478}
1479
de06a59e
EP		 1480bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1481 struct iwl_bcast_filter_cmd *cmd)
c87163b9 1482{
c87163b9
EP		 1483 struct iwl_bcast_iter_data iter_data = {
1484 .mvm = mvm,
de06a59e 1485 .cmd = cmd,
c87163b9
EP		 1486 };
1487
3b8983b1
MS		 1488 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
1489 return false;
1490
de06a59e
EP		 1491 memset(cmd, 0, sizeof(*cmd));
1492 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1493 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1494
1495#ifdef CONFIG_IWLWIFI_DEBUGFS
1496 /* use debugfs filters/macs if override is configured */
1497 if (mvm->dbgfs_bcast_filtering.override) {
1498 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1499 sizeof(cmd->filters));
1500 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1501 sizeof(cmd->macs));
1502 return true;
1503 }
1504#endif
c87163b9
EP		 1505
1506 /* if no filters are configured, do nothing */
1507 if (!mvm->bcast_filters)
de06a59e 1508 return false;
c87163b9
EP		 1509
1510 /* configure and attach these filters for each associated sta vif */
1511 ieee80211_iterate_active_interfaces(
1512 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1513 iwl_mvm_bcast_filter_iterator, &iter_data);
1514
de06a59e
EP		 1515 return true;
1516}
1517static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1518 struct ieee80211_vif *vif)
1519{
1520 struct iwl_bcast_filter_cmd cmd;
1521
1522 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1523 return 0;
1524
1525 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1526 return 0;
1527
a1022927 1528 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
c87163b9
EP		 1529 sizeof(cmd), &cmd);
1530}
1531#else
1532static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1533 struct ieee80211_vif *vif)
1534{
1535 return 0;
1536}
1537#endif
1538
8ca151b5
JB		 1539static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1540 struct ieee80211_vif *vif,
1541 struct ieee80211_bss_conf *bss_conf,
1542 u32 changes)
1543{
1544 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1545 int ret;
1546
6e97b0d2
IP		 1547 /*
1548 * Re-calculate the tsf id, as the master-slave relations depend on the
1549 * beacon interval, which was not known when the station interface was
1550 * added.
1551 */
1552 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1553 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1554
3dfd3a97
JB		 1555 /*
1556 * If we're not associated yet, take the (new) BSSID before associating
1557 * so the firmware knows. If we're already associated, then use the old
1558 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1559 * branch for disassociation below.
1560 */
1561 if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
1562 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1563
1564 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
8ca151b5
JB		 1565 if (ret)
1566 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1567
3dfd3a97
JB		 1568 /* after sending it once, adopt mac80211 data */
1569 memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
1570 mvmvif->associated = bss_conf->assoc;
1571
8ca151b5
JB		 1572 if (changes & BSS_CHANGED_ASSOC) {
1573 if (bss_conf->assoc) {
1574 /* add quota for this interface */
0166230c 1575 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1576 if (ret) {
1577 IWL_ERR(mvm, "failed to update quotas\n");
1578 return;
1579 }
016d27e1
JB		 1580
1581 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1582 &mvm->status)) {
1583 /*
1584 * If we're restarting then the firmware will
1585 * obviously have lost synchronisation with
1586 * the AP. It will attempt to synchronise by
1587 * itself, but we can make it more reliable by
1588 * scheduling a session protection time event.
1589 *
1590 * The firmware needs to receive a beacon to
1591 * catch up with synchronisation, use 110% of
1592 * the beacon interval.
1593 *
1594 * Set a large maximum delay to allow for more
1595 * than a single interface.
1596 */
1597 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1598 iwl_mvm_protect_session(mvm, vif, dur, dur,
d20d37bc 1599 5 * dur, false);
016d27e1 1600 }
1f3b0ff8
LE		 1601
1602 iwl_mvm_sf_update(mvm, vif, false);
175a70b7 1603 iwl_mvm_power_vif_assoc(mvm, vif);
697162a1 1604 if (vif->p2p) {
29a90a49 1605 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
697162a1
EG		 1606 iwl_mvm_update_smps(mvm, vif,
1607 IWL_MVM_SMPS_REQ_PROT,
1608 IEEE80211_SMPS_DYNAMIC);
1609 }
8ca151b5 1610 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1f3b0ff8
LE		 1611 /*
1612 * If update fails - SF might be running in associated
1613 * mode while disassociated - which is forbidden.
1614 */
1615 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1616 "Failed to update SF upon disassociation\n");
1617
8ca151b5
JB		 1618 /* remove AP station now that the MAC is unassoc */
1619 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1620 if (ret)
1621 IWL_ERR(mvm, "failed to remove AP station\n");
37577fe2
EP		 1622
1623 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1624 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
8ca151b5
JB		 1625 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1626 /* remove quota for this interface */
0166230c 1627 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 1628 if (ret)
1629 IWL_ERR(mvm, "failed to update quotas\n");
29a90a49
EP		 1630
1631 if (vif->p2p)
1632 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
3dfd3a97
JB		 1633
1634 /* this will take the cleared BSSID from bss_conf */
1635 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1636 if (ret)
1637 IWL_ERR(mvm,
1638 "failed to update MAC %pM (clear after unassoc)\n",
1639 vif->addr);
8ca151b5 1640 }
a20fd398 1641
e59647ea 1642 iwl_mvm_recalc_multicast(mvm);
c87163b9 1643 iwl_mvm_configure_bcast_filter(mvm, vif);
e59647ea 1644
a20fd398
AO		 1645 /* reset rssi values */
1646 mvmvif->bf_data.ave_beacon_signal = 0;
1647
8e484f0b 1648 iwl_mvm_bt_coex_vif_change(mvm);
f94045ed
EG		 1649 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1650 IEEE80211_SMPS_AUTOMATIC);
989c6505 1651 } else if (changes & BSS_CHANGED_BEACON_INFO) {
210a544e
JB		 1652 /*
1653 * We received a beacon _after_ association so
1654 * remove the session protection.
1655 */
1656 iwl_mvm_remove_time_event(mvm, mvmvif,
1657 &mvmvif->time_event_data);
8ca151b5 1658 }
cc87d322
EH		 1659
1660 if (changes & BSS_CHANGED_BEACON_INFO) {
1661 iwl_mvm_sf_update(mvm, vif, false);
1662 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1663 }
1664
1bc10d3b
JB		 1665 if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS)) {
1666 ret = iwl_mvm_power_update_mac(mvm);
1667 if (ret)
1668 IWL_ERR(mvm, "failed to update power mode\n");
1669 }
1670
88f2fd73
MG		 1671 if (changes & BSS_CHANGED_TXPOWER) {
1672 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1673 bss_conf->txpower);
1674 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1675 }
a20fd398
AO		 1676
1677 if (changes & BSS_CHANGED_CQM) {
3c6acb61 1678 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
a20fd398
AO		 1679 /* reset cqm events tracking */
1680 mvmvif->bf_data.last_cqm_event = 0;
fa7b2e7f
AA		 1681 if (mvmvif->bf_data.bf_enabled) {
1682 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1683 if (ret)
1684 IWL_ERR(mvm,
1685 "failed to update CQM thresholds\n");
1686 }
a20fd398 1687 }
2ee8f021
EP		 1688
1689 if (changes & BSS_CHANGED_ARP_FILTER) {
3c6acb61 1690 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
2ee8f021
EP		 1691 iwl_mvm_configure_bcast_filter(mvm, vif);
1692 }
8ca151b5
JB		 1693}
1694
5023d966
JB		 1695static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1696 struct ieee80211_vif *vif)
8ca151b5
JB		 1697{
1698 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1699 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1700 int ret;
1701
576eeee9
EP		 1702 /*
1703 * iwl_mvm_mac_ctxt_add() might read directly from the device
1704 * (the system time), so make sure it is available.
1705 */
1706 ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_START_AP);
1707 if (ret)
1708 return ret;
1709
8ca151b5
JB		 1710 mutex_lock(&mvm->mutex);
1711
1712 /* Send the beacon template */
1713 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1714 if (ret)
1715 goto out_unlock;
1716
6e97b0d2
IP		 1717 /*
1718 * Re-calculate the tsf id, as the master-slave relations depend on the
1719 * beacon interval, which was not known when the AP interface was added.
1720 */
1721 if (vif->type == NL80211_IFTYPE_AP)
1722 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1723
8ca151b5
JB		 1724 /* Add the mac context */
1725 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1726 if (ret)
1727 goto out_unlock;
1728
1729 /* Perform the binding */
1730 ret = iwl_mvm_binding_add_vif(mvm, vif);
1731 if (ret)
1732 goto out_remove;
1733
8ca151b5
JB		 1734 /* Send the bcast station. At this stage the TBTT and DTIM time events
1735 * are added and applied to the scheduler */
013290aa 1736 ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
8ca151b5
JB		 1737 if (ret)
1738 goto out_unbind;
1739
5691e218
IP		 1740 /* must be set before quota calculations */
1741 mvmvif->ap_ibss_active = true;
1742
a11e144e 1743 /* power updated needs to be done before quotas */
999609f1 1744 iwl_mvm_power_update_mac(mvm);
a11e144e 1745
0166230c 1746 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5 1747 if (ret)
a11e144e 1748 goto out_quota_failed;
8ca151b5 1749
5023d966 1750 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1751 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1752 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1753
29a90a49
EP		 1754 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1755
8e484f0b 1756 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1757
f697267f
AN		 1758 /* we don't support TDLS during DCM */
1759 if (iwl_mvm_phy_ctx_count(mvm) > 1)
1760 iwl_mvm_teardown_tdls_peers(mvm);
1761
8ca151b5
JB		 1762 mutex_unlock(&mvm->mutex);
1763 return 0;
1764
a11e144e 1765out_quota_failed:
999609f1 1766 iwl_mvm_power_update_mac(mvm);
5691e218 1767 mvmvif->ap_ibss_active = false;
013290aa 1768 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5
JB		 1769out_unbind:
1770 iwl_mvm_binding_remove_vif(mvm, vif);
1771out_remove:
1772 iwl_mvm_mac_ctxt_remove(mvm, vif);
1773out_unlock:
1774 mutex_unlock(&mvm->mutex);
576eeee9 1775 iwl_mvm_unref(mvm, IWL_MVM_REF_START_AP);
8ca151b5
JB		 1776 return ret;
1777}
1778
5023d966
JB		 1779static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1780 struct ieee80211_vif *vif)
8ca151b5
JB		 1781{
1782 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1783 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1784
38a12b5b
JB		 1785 iwl_mvm_prepare_mac_removal(mvm, vif);
1786
8ca151b5
JB		 1787 mutex_lock(&mvm->mutex);
1788
664322fa 1789 /* Handle AP stop while in CSA */
7f0a7c67
AO		 1790 if (rcu_access_pointer(mvm->csa_vif) == vif) {
1791 iwl_mvm_remove_time_event(mvm, mvmvif,
1792 &mvmvif->time_event_data);
664322fa 1793 RCU_INIT_POINTER(mvm->csa_vif, NULL);
7f0a7c67 1794 }
664322fa 1795
003e5236
AO		 1796 if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
1797 RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
1798 mvm->csa_tx_block_bcn_timeout = 0;
1799 }
1800
5023d966 1801 mvmvif->ap_ibss_active = false;
1c87bbad 1802 mvm->ap_last_beacon_gp2 = 0;
8ca151b5 1803
8e484f0b 1804 iwl_mvm_bt_coex_vif_change(mvm);
dac94da8 1805
29a90a49
EP		 1806 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1807
5023d966 1808 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
8ca151b5 1809 if (vif->p2p && mvm->p2p_device_vif)
3dfd3a97 1810 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
8ca151b5 1811
0166230c 1812 iwl_mvm_update_quotas(mvm, NULL);
013290aa 1813 iwl_mvm_send_rm_bcast_sta(mvm, vif);
8ca151b5 1814 iwl_mvm_binding_remove_vif(mvm, vif);
a11e144e 1815
999609f1 1816 iwl_mvm_power_update_mac(mvm);
a11e144e 1817
8ca151b5
JB		 1818 iwl_mvm_mac_ctxt_remove(mvm, vif);
1819
1820 mutex_unlock(&mvm->mutex);
1821}
1822
5023d966
JB		 1823static void
1824iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1825 struct ieee80211_vif *vif,
1826 struct ieee80211_bss_conf *bss_conf,
1827 u32 changes)
8ca151b5 1828{
be2056fc 1829 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8a5e3660 1830
be2056fc
IP		 1831 /* Changes will be applied when the AP/IBSS is started */
1832 if (!mvmvif->ap_ibss_active)
1833 return;
1834
863230da 1835 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
f7d8b702 1836 BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
3dfd3a97 1837 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
863230da 1838 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
8a5e3660 1839
8ca151b5 1840 /* Need to send a new beacon template to the FW */
863230da
JB		 1841 if (changes & BSS_CHANGED_BEACON &&
1842 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1843 IWL_WARN(mvm, "Failed updating beacon data\n");
79b7a69d
HD		 1844
1845 if (changes & BSS_CHANGED_TXPOWER) {
1846 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1847 bss_conf->txpower);
1848 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1849 }
1850
8ca151b5
JB		 1851}
1852
1853static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1854 struct ieee80211_vif *vif,
1855 struct ieee80211_bss_conf *bss_conf,
1856 u32 changes)
1857{
1858 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1859
576eeee9
EP		 1860 /*
1861 * iwl_mvm_bss_info_changed_station() might call
1862 * iwl_mvm_protect_session(), which reads directly from
1863 * the device (the system time), so make sure it is available.
1864 */
1865 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_BSS_CHANGED))
1866 return;
1867
8ca151b5
JB		 1868 mutex_lock(&mvm->mutex);
1869
723f02ed 1870 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
fb98be5e 1871 iwl_mvm_scan_offload_stop(mvm, true);
723f02ed 1872
8ca151b5
JB		 1873 switch (vif->type) {
1874 case NL80211_IFTYPE_STATION:
1875 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1876 break;
1877 case NL80211_IFTYPE_AP:
5023d966
JB		 1878 case NL80211_IFTYPE_ADHOC:
1879 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
8ca151b5
JB		 1880 break;
1881 default:
1882 /* shouldn't happen */
1883 WARN_ON_ONCE(1);
1884 }
1885
1886 mutex_unlock(&mvm->mutex);
576eeee9 1887 iwl_mvm_unref(mvm, IWL_MVM_REF_BSS_CHANGED);
8ca151b5
JB		 1888}
1889
4660dfbb
EP		 1890static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm *mvm,
1891 enum iwl_scan_status scan_type)
1892{
1893 int ret;
1894 bool wait_for_handlers = false;
1895
1896 mutex_lock(&mvm->mutex);
1897
1898 if (mvm->scan_status != scan_type) {
1899 ret = 0;
1900 /* make sure there are no pending notifications */
1901 wait_for_handlers = true;
1902 goto out;
1903 }
1904
1905 switch (scan_type) {
1906 case IWL_MVM_SCAN_SCHED:
1907 ret = iwl_mvm_scan_offload_stop(mvm, true);
1908 break;
1909 case IWL_MVM_SCAN_OS:
1910 ret = iwl_mvm_cancel_scan(mvm);
1911 break;
1912 case IWL_MVM_SCAN_NONE:
1913 default:
1914 WARN_ON_ONCE(1);
1915 ret = -EINVAL;
1916 break;
1917 }
1918 if (ret)
1919 goto out;
1920
1921 wait_for_handlers = true;
1922out:
1923 mutex_unlock(&mvm->mutex);
1924
1925 /* make sure we consume the completion notification */
1926 if (wait_for_handlers)
1927 iwl_mvm_wait_for_async_handlers(mvm);
1928
1929 return ret;
1930}
8ca151b5
JB		 1931static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1932 struct ieee80211_vif *vif,
c56ef672 1933 struct ieee80211_scan_request *hw_req)
8ca151b5
JB		 1934{
1935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c56ef672 1936 struct cfg80211_scan_request *req = &hw_req->req;
8ca151b5
JB		 1937 int ret;
1938
762533ba
DS		 1939 if (req->n_channels == 0 ||
1940 req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
8ca151b5
JB		 1941 return -EINVAL;
1942
d2496221
DS		 1943 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1944 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
1945 if (ret)
1946 return ret;
1947 }
4660dfbb 1948
8ca151b5
JB		 1949 mutex_lock(&mvm->mutex);
1950
4660dfbb 1951 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
8ca151b5 1952 ret = -EBUSY;
519e2026
AN		 1953 goto out;
1954 }
8ca151b5 1955
519e2026
AN		 1956 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1957
b975e55a 1958 if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
d2496221 1959 ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
b975e55a
DS		 1960 else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
1961 ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
fb98be5e
DS		 1962 else
1963 ret = iwl_mvm_scan_request(mvm, vif, req);
1964
519e2026
AN		 1965 if (ret)
1966 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1967out:
8ca151b5 1968 mutex_unlock(&mvm->mutex);
8ca151b5
JB		 1969 return ret;
1970}
1971
1972static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1973 struct ieee80211_vif *vif)
1974{
1975 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1976
1977 mutex_lock(&mvm->mutex);
1978
1979 iwl_mvm_cancel_scan(mvm);
1980
1981 mutex_unlock(&mvm->mutex);
1982}
1983
1984static void
1985iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
3e56eadf 1986 struct ieee80211_sta *sta, u16 tids,
8ca151b5
JB		 1987 int num_frames,
1988 enum ieee80211_frame_release_type reason,
1989 bool more_data)
1990{
1991 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5 1992
3e56eadf 1993 /* Called when we need to transmit (a) frame(s) from mac80211 */
8ca151b5 1994
3e56eadf
JB		 1995 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1996 tids, more_data, false);
1997}
1998
1999static void
2000iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2001 struct ieee80211_sta *sta, u16 tids,
2002 int num_frames,
2003 enum ieee80211_frame_release_type reason,
2004 bool more_data)
2005{
2006 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2007
2008 /* Called when we need to transmit (a) frame(s) from agg queue */
2009
2010 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2011 tids, more_data, true);
8ca151b5
JB		 2012}
2013
2014static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2015 struct ieee80211_vif *vif,
2016 enum sta_notify_cmd cmd,
2017 struct ieee80211_sta *sta)
2018{
2019 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5b577a90 2020 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
3e56eadf 2021 int tid;
8ca151b5
JB		 2022
2023 switch (cmd) {
2024 case STA_NOTIFY_SLEEP:
e3d4bc8c 2025 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
8ca151b5 2026 ieee80211_sta_block_awake(hw, sta, true);
3e56eadf
JB		 2027 spin_lock_bh(&mvmsta->lock);
2028 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
2029 struct iwl_mvm_tid_data *tid_data;
2030
2031 tid_data = &mvmsta->tid_data[tid];
2032 if (tid_data->state != IWL_AGG_ON &&
2033 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
2034 continue;
2035 if (iwl_mvm_tid_queued(tid_data) == 0)
2036 continue;
2037 ieee80211_sta_set_buffered(sta, tid, true);
2038 }
2039 spin_unlock_bh(&mvmsta->lock);
8ca151b5
JB		 2040 /*
2041 * The fw updates the STA to be asleep. Tx packets on the Tx
2042 * queues to this station will not be transmitted. The fw will
2043 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2044 */
2045 break;
2046 case STA_NOTIFY_AWAKE:
881acd89 2047 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
8ca151b5 2048 break;
9cc40712 2049 iwl_mvm_sta_modify_ps_wake(mvm, sta);
8ca151b5
JB		 2050 break;
2051 default:
2052 break;
2053 }
2054}
2055
1ddbbb0c
JB		 2056static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2057 struct ieee80211_vif *vif,
2058 struct ieee80211_sta *sta)
2059{
2060 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2061 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2062
2063 /*
2064 * This is called before mac80211 does RCU synchronisation,
2065 * so here we already invalidate our internal RCU-protected
2066 * station pointer. The rest of the code will thus no longer
2067 * be able to find the station this way, and we don't rely
2068 * on further RCU synchronisation after the sta_state()
2069 * callback deleted the station.
2070 */
2071 mutex_lock(&mvm->mutex);
2072 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2073 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2074 ERR_PTR(-ENOENT));
2075 mutex_unlock(&mvm->mutex);
2076}
2077
8ca151b5
JB		 2078static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
2079 struct ieee80211_vif *vif,
2080 struct ieee80211_sta *sta,
2081 enum ieee80211_sta_state old_state,
2082 enum ieee80211_sta_state new_state)
2083{
2084 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2085 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2086 int ret;
2087
2088 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
2089 sta->addr, old_state, new_state);
2090
2091 /* this would be a mac80211 bug ... but don't crash */
2092 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
2093 return -EINVAL;
2094
2095 /* if a STA is being removed, reuse its ID */
2096 flush_work(&mvm->sta_drained_wk);
2097
2098 mutex_lock(&mvm->mutex);
2099 if (old_state == IEEE80211_STA_NOTEXIST &&
2100 new_state == IEEE80211_STA_NONE) {
48bc1307
JB		 2101 /*
2102 * Firmware bug - it'll crash if the beacon interval is less
2103 * than 16. We can't avoid connecting at all, so refuse the
2104 * station state change, this will cause mac80211 to abandon
2105 * attempts to connect to this AP, and eventually wpa_s will
2106 * blacklist the AP...
2107 */
2108 if (vif->type == NL80211_IFTYPE_STATION &&
2109 vif->bss_conf.beacon_int < 16) {
2110 IWL_ERR(mvm,
2111 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2112 sta->addr, vif->bss_conf.beacon_int);
2113 ret = -EINVAL;
2114 goto out_unlock;
2115 }
cf7b491d
AN		 2116
2117 if (sta->tdls &&
2118 (vif->p2p ||
fa3d07e4
AN		 2119 iwl_mvm_tdls_sta_count(mvm, NULL) ==
2120 IWL_MVM_TDLS_STA_COUNT ||
cf7b491d
AN		 2121 iwl_mvm_phy_ctx_count(mvm) > 1)) {
2122 IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
2123 ret = -EBUSY;
2124 goto out_unlock;
2125 }
2126
8ca151b5 2127 ret = iwl_mvm_add_sta(mvm, vif, sta);
fa3d07e4
AN		 2128 if (sta->tdls && ret == 0)
2129 iwl_mvm_recalc_tdls_state(mvm, vif, true);
8ca151b5
JB		 2130 } else if (old_state == IEEE80211_STA_NONE &&
2131 new_state == IEEE80211_STA_AUTH) {
e820c2da
HD		 2132 /*
2133 * EBS may be disabled due to previous failures reported by FW.
2134 * Reset EBS status here assuming environment has been changed.
2135 */
2136 mvm->last_ebs_successful = true;
8ca151b5
JB		 2137 ret = 0;
2138 } else if (old_state == IEEE80211_STA_AUTH &&
2139 new_state == IEEE80211_STA_ASSOC) {
7a453973
JB		 2140 ret = iwl_mvm_update_sta(mvm, vif, sta);
2141 if (ret == 0)
2142 iwl_mvm_rs_rate_init(mvm, sta,
b87c2179
ES		 2143 mvmvif->phy_ctxt->channel->band,
2144 true);
8ca151b5
JB		 2145 } else if (old_state == IEEE80211_STA_ASSOC &&
2146 new_state == IEEE80211_STA_AUTHORIZED) {
f59e0e3c
AN		 2147
2148 /* we don't support TDLS during DCM */
2149 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2150 iwl_mvm_teardown_tdls_peers(mvm);
2151
7df15b1e 2152 /* enable beacon filtering */
fa7b2e7f 2153 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2154 ret = 0;
2155 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
2156 new_state == IEEE80211_STA_ASSOC) {
7df15b1e 2157 /* disable beacon filtering */
a1022927 2158 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
8ca151b5
JB		 2159 ret = 0;
2160 } else if (old_state == IEEE80211_STA_ASSOC &&
2161 new_state == IEEE80211_STA_AUTH) {
2162 ret = 0;
2163 } else if (old_state == IEEE80211_STA_AUTH &&
2164 new_state == IEEE80211_STA_NONE) {
2165 ret = 0;
2166 } else if (old_state == IEEE80211_STA_NONE &&
2167 new_state == IEEE80211_STA_NOTEXIST) {
2168 ret = iwl_mvm_rm_sta(mvm, vif, sta);
fa3d07e4
AN		 2169 if (sta->tdls)
2170 iwl_mvm_recalc_tdls_state(mvm, vif, false);
8ca151b5
JB		 2171 } else {
2172 ret = -EIO;
2173 }
48bc1307 2174 out_unlock:
8ca151b5
JB		 2175 mutex_unlock(&mvm->mutex);
2176
2177 return ret;
2178}
2179
2180static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
2181{
2182 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2183
2184 mvm->rts_threshold = value;
2185
2186 return 0;
2187}
2188
1f3b0ff8
LE		 2189static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
2190 struct ieee80211_vif *vif,
2191 struct ieee80211_sta *sta, u32 changed)
2192{
2193 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2194
2195 if (vif->type == NL80211_IFTYPE_STATION &&
2196 changed & IEEE80211_RC_NSS_CHANGED)
2197 iwl_mvm_sf_update(mvm, vif, false);
2198}
2199
8ca151b5
JB		 2200static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
2201 struct ieee80211_vif *vif, u16 ac,
2202 const struct ieee80211_tx_queue_params *params)
2203{
2204 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2205 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2206
2207 mvmvif->queue_params[ac] = *params;
2208
2209 /*
2210 * No need to update right away, we'll get BSS_CHANGED_QOS
2211 * The exception is P2P_DEVICE interface which needs immediate update.
2212 */
2213 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
2214 int ret;
2215
2216 mutex_lock(&mvm->mutex);
3dfd3a97 2217 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 2218 mutex_unlock(&mvm->mutex);
2219 return ret;
2220 }
2221 return 0;
2222}
2223
2224static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
2225 struct ieee80211_vif *vif)
2226{
2227 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2228 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
2229 200 + vif->bss_conf.beacon_int);
2230 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
2231 100 + vif->bss_conf.beacon_int);
2232
2233 if (WARN_ON_ONCE(vif->bss_conf.assoc))
2234 return;
2235
576eeee9
EP		 2236 /*
2237 * iwl_mvm_protect_session() reads directly from the device
2238 * (the system time), so make sure it is available.
2239 */
2240 if (iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PREPARE_TX))
2241 return;
2242
8ca151b5
JB		 2243 mutex_lock(&mvm->mutex);
2244 /* Try really hard to protect the session and hear a beacon */
d20d37bc 2245 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500, false);
8ca151b5 2246 mutex_unlock(&mvm->mutex);
576eeee9
EP		 2247
2248 iwl_mvm_unref(mvm, IWL_MVM_REF_PREPARE_TX);
8ca151b5
JB		 2249}
2250
35a000b7
DS		 2251static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
2252 struct ieee80211_vif *vif,
2253 struct cfg80211_sched_scan_request *req,
633e2713 2254 struct ieee80211_scan_ies *ies)
35a000b7
DS		 2255{
2256 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2257 int ret;
2258
d2496221
DS		 2259 if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
2260 ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
2261 if (ret)
2262 return ret;
2263 }
4660dfbb 2264
35a000b7
DS		 2265 mutex_lock(&mvm->mutex);
2266
59ecb128
AB		 2267 /* Newest FW fixes sched scan while connected on another interface */
2268 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) {
2269 if (!vif->bss_conf.idle) {
2270 ret = -EBUSY;
2271 goto out;
2272 }
2273 } else if (!iwl_mvm_is_idle(mvm)) {
bd5e4744
DS		 2274 ret = -EBUSY;
2275 goto out;
2276 }
2277
4660dfbb 2278 if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
35a000b7
DS		 2279 ret = -EBUSY;
2280 goto out;
2281 }
2282
b141c235 2283 ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
35a000b7 2284 if (ret)
b141c235 2285 mvm->scan_status = IWL_MVM_SCAN_NONE;
d2496221 2286
35a000b7
DS		 2287out:
2288 mutex_unlock(&mvm->mutex);
2289 return ret;
2290}
2291
37e3308c
JB		 2292static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
2293 struct ieee80211_vif *vif)
35a000b7
DS		 2294{
2295 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
33ea27f6 2296 int ret;
35a000b7
DS		 2297
2298 mutex_lock(&mvm->mutex);
fb98be5e 2299 ret = iwl_mvm_scan_offload_stop(mvm, false);
35a000b7 2300 mutex_unlock(&mvm->mutex);
33ea27f6 2301 iwl_mvm_wait_for_async_handlers(mvm);
37e3308c 2302
33ea27f6 2303 return ret;
d2496221 2304
35a000b7
DS		 2305}
2306
8ca151b5
JB		 2307static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
2308 enum set_key_cmd cmd,
2309 struct ieee80211_vif *vif,
2310 struct ieee80211_sta *sta,
2311 struct ieee80211_key_conf *key)
2312{
2313 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2314 int ret;
2315
2316 if (iwlwifi_mod_params.sw_crypto) {
2317 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
2318 return -EOPNOTSUPP;
2319 }
2320
2321 switch (key->cipher) {
2322 case WLAN_CIPHER_SUITE_TKIP:
2323 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
2324 /* fall-through */
2325 case WLAN_CIPHER_SUITE_CCMP:
2326 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
2327 break;
2328 case WLAN_CIPHER_SUITE_AES_CMAC:
2329 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
2330 break;
2331 case WLAN_CIPHER_SUITE_WEP40:
2332 case WLAN_CIPHER_SUITE_WEP104:
ba3943b0
JB		 2333 /* For non-client mode, only use WEP keys for TX as we probably
2334 * don't have a station yet anyway and would then have to keep
2335 * track of the keys, linking them to each of the clients/peers
2336 * as they appear. For now, don't do that, for performance WEP
2337 * offload doesn't really matter much, but we need it for some
2338 * other offload features in client mode.
8ca151b5 2339 */
ba3943b0
JB		 2340 if (vif->type != NL80211_IFTYPE_STATION)
2341 return 0;
2342 break;
8ca151b5 2343 default:
e36e5433
MS		 2344 /* currently FW supports only one optional cipher scheme */
2345 if (hw->n_cipher_schemes &&
2346 hw->cipher_schemes->cipher == key->cipher)
2347 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
2348 else
2349 return -EOPNOTSUPP;
8ca151b5
JB		 2350 }
2351
2352 mutex_lock(&mvm->mutex);
2353
2354 switch (cmd) {
2355 case SET_KEY:
5023d966
JB		 2356 if ((vif->type == NL80211_IFTYPE_ADHOC ||
2357 vif->type == NL80211_IFTYPE_AP) && !sta) {
2358 /*
2359 * GTK on AP interface is a TX-only key, return 0;
2360 * on IBSS they're per-station and because we're lazy
2361 * we don't support them for RX, so do the same.
2362 */
6caffd4f
JB		 2363 ret = 0;
2364 key->hw_key_idx = STA_KEY_IDX_INVALID;
2365 break;
2366 }
2367
8ca151b5
JB		 2368 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
2369 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
2370 if (ret) {
2371 IWL_WARN(mvm, "set key failed\n");
2372 /*
2373 * can't add key for RX, but we don't need it
2374 * in the device for TX so still return 0
2375 */
6caffd4f 2376 key->hw_key_idx = STA_KEY_IDX_INVALID;
8ca151b5
JB		 2377 ret = 0;
2378 }
2379
2380 break;
2381 case DISABLE_KEY:
6caffd4f
JB		 2382 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
2383 ret = 0;
2384 break;
2385 }
2386
8ca151b5
JB		 2387 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
2388 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
2389 break;
2390 default:
2391 ret = -EINVAL;
2392 }
2393
2394 mutex_unlock(&mvm->mutex);
2395 return ret;
2396}
2397
2398static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
2399 struct ieee80211_vif *vif,
2400 struct ieee80211_key_conf *keyconf,
2401 struct ieee80211_sta *sta,
2402 u32 iv32, u16 *phase1key)
2403{
2404 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2405
5023d966
JB		 2406 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
2407 return;
2408
8ca151b5
JB		 2409 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2410}
2411
2412
b112889c
AM		 2413static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
2414 struct iwl_rx_packet *pkt, void *data)
2415{
2416 struct iwl_mvm *mvm =
2417 container_of(notif_wait, struct iwl_mvm, notif_wait);
2418 struct iwl_hs20_roc_res *resp;
2419 int resp_len = iwl_rx_packet_payload_len(pkt);
2420 struct iwl_mvm_time_event_data *te_data = data;
2421
2422 if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
2423 return true;
2424
2425 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
2426 IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
2427 return true;
2428 }
2429
2430 resp = (void *)pkt->data;
2431
2432 IWL_DEBUG_TE(mvm,
2433 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2434 resp->status, resp->event_unique_id);
2435
2436 te_data->uid = le32_to_cpu(resp->event_unique_id);
2437 IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
2438 te_data->uid);
2439
2440 spin_lock_bh(&mvm->time_event_lock);
2441 list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
2442 spin_unlock_bh(&mvm->time_event_lock);
2443
2444 return true;
2445}
2446
2447#define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2448static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
2449 struct ieee80211_channel *channel,
2450 struct ieee80211_vif *vif,
2451 int duration)
2452{
2453 int res, time_reg = DEVICE_SYSTEM_TIME_REG;
2454 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2455 struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
2456 static const u8 time_event_response[] = { HOT_SPOT_CMD };
2457 struct iwl_notification_wait wait_time_event;
2458 struct iwl_hs20_roc_req aux_roc_req = {
2459 .action = cpu_to_le32(FW_CTXT_ACTION_ADD),
2460 .id_and_color =
2461 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
2462 .sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
2463 /* Set the channel info data */
2464 .channel_info.band = (channel->band == IEEE80211_BAND_2GHZ) ?
2465 PHY_BAND_24 : PHY_BAND_5,
2466 .channel_info.channel = channel->hw_value,
2467 .channel_info.width = PHY_VHT_CHANNEL_MODE20,
2468 /* Set the time and duration */
2469 .apply_time = cpu_to_le32(iwl_read_prph(mvm->trans, time_reg)),
2470 .apply_time_max_delay =
2471 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL)),
2472 .duration = cpu_to_le32(MSEC_TO_TU(duration)),
2473 };
2474
2475 /* Set the node address */
2476 memcpy(aux_roc_req.node_addr, vif->addr, ETH_ALEN);
2477
a6cc5163
MG		 2478 lockdep_assert_held(&mvm->mutex);
2479
2480 spin_lock_bh(&mvm->time_event_lock);
2481
2482 if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
2483 spin_unlock_bh(&mvm->time_event_lock);
2484 return -EIO;
2485 }
2486
b112889c
AM		 2487 te_data->vif = vif;
2488 te_data->duration = duration;
2489 te_data->id = HOT_SPOT_CMD;
2490
b112889c
AM		 2491 spin_unlock_bh(&mvm->time_event_lock);
2492
2493 /*
2494 * Use a notification wait, which really just processes the
2495 * command response and doesn't wait for anything, in order
2496 * to be able to process the response and get the UID inside
2497 * the RX path. Using CMD_WANT_SKB doesn't work because it
2498 * stores the buffer and then wakes up this thread, by which
2499 * time another notification (that the time event started)
2500 * might already be processed unsuccessfully.
2501 */
2502 iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
2503 time_event_response,
2504 ARRAY_SIZE(time_event_response),
2505 iwl_mvm_rx_aux_roc, te_data);
2506
2507 res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, sizeof(aux_roc_req),
2508 &aux_roc_req);
2509
2510 if (res) {
2511 IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
2512 iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
2513 goto out_clear_te;
2514 }
2515
2516 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2517 res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
2518 /* should never fail */
2519 WARN_ON_ONCE(res);
2520
2521 if (res) {
2522 out_clear_te:
2523 spin_lock_bh(&mvm->time_event_lock);
2524 iwl_mvm_te_clear_data(mvm, te_data);
2525 spin_unlock_bh(&mvm->time_event_lock);
2526 }
2527
2528 return res;
2529}
2530
8ca151b5
JB		 2531static int iwl_mvm_roc(struct ieee80211_hw *hw,
2532 struct ieee80211_vif *vif,
2533 struct ieee80211_channel *channel,
d339d5ca
IP		 2534 int duration,
2535 enum ieee80211_roc_type type)
8ca151b5
JB		 2536{
2537 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3 2538 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
8ca151b5 2539 struct cfg80211_chan_def chandef;
31d385ae
IP		 2540 struct iwl_mvm_phy_ctxt *phy_ctxt;
2541 int ret, i;
2542
2543 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2544 duration, type);
8ca151b5 2545
a6cc5163
MG		 2546 mutex_lock(&mvm->mutex);
2547
b112889c
AM		 2548 switch (vif->type) {
2549 case NL80211_IFTYPE_STATION:
2550 /* Use aux roc framework (HS20) */
2551 ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
2552 vif, duration);
a6cc5163 2553 goto out_unlock;
b112889c
AM		 2554 case NL80211_IFTYPE_P2P_DEVICE:
2555 /* handle below */
2556 break;
2557 default:
2558 IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
a6cc5163
MG		 2559 ret = -EINVAL;
2560 goto out_unlock;
8ca151b5
JB		 2561 }
2562
31d385ae
IP		 2563 for (i = 0; i < NUM_PHY_CTX; i++) {
2564 phy_ctxt = &mvm->phy_ctxts[i];
2565 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2566 continue;
2567
2568 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2569 /*
2570 * Unbind the P2P_DEVICE from the current PHY context,
2571 * and if the PHY context is not used remove it.
2572 */
2573 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2574 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2575 goto out_unlock;
2576
2577 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2578
2579 /* Bind the P2P_DEVICE to the current PHY Context */
2580 mvmvif->phy_ctxt = phy_ctxt;
2581
2582 ret = iwl_mvm_binding_add_vif(mvm, vif);
2583 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2584 goto out_unlock;
2585
2586 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2587 goto schedule_time_event;
2588 }
2589 }
2590
2591 /* Need to update the PHY context only if the ROC channel changed */
2592 if (channel == mvmvif->phy_ctxt->channel)
2593 goto schedule_time_event;
2594
8ca151b5 2595 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
8ca151b5 2596
31d385ae
IP		 2597 /*
2598 * Change the PHY context configuration as it is currently referenced
2599 * only by the P2P Device MAC
2600 */
2601 if (mvmvif->phy_ctxt->ref == 1) {
2602 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2603 &chandef, 1, 1);
2604 if (ret)
2605 goto out_unlock;
2606 } else {
2607 /*
2608 * The PHY context is shared with other MACs. Need to remove the
2609 * P2P Device from the binding, allocate an new PHY context and
2610 * create a new binding
2611 */
2612 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2613 if (!phy_ctxt) {
2614 ret = -ENOSPC;
2615 goto out_unlock;
2616 }
2617
2618 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2619 1, 1);
2620 if (ret) {
2621 IWL_ERR(mvm, "Failed to change PHY context\n");
2622 goto out_unlock;
2623 }
2624
2625 /* Unbind the P2P_DEVICE from the current PHY context */
2626 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2627 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2628 goto out_unlock;
2629
2630 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2631
2632 /* Bind the P2P_DEVICE to the new allocated PHY context */
2633 mvmvif->phy_ctxt = phy_ctxt;
2634
2635 ret = iwl_mvm_binding_add_vif(mvm, vif);
2636 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2637 goto out_unlock;
2638
2639 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2640 }
2641
2642schedule_time_event:
8ca151b5 2643 /* Schedule the time events */
e635c797 2644 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
8ca151b5 2645
31d385ae 2646out_unlock:
8ca151b5
JB		 2647 mutex_unlock(&mvm->mutex);
2648 IWL_DEBUG_MAC80211(mvm, "leave\n");
8ca151b5
JB		 2649 return ret;
2650}
2651
2652static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2653{
2654 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2655
2656 IWL_DEBUG_MAC80211(mvm, "enter\n");
2657
2658 mutex_lock(&mvm->mutex);
bf5da87f 2659 iwl_mvm_stop_roc(mvm);
8ca151b5
JB		 2660 mutex_unlock(&mvm->mutex);
2661
2662 IWL_DEBUG_MAC80211(mvm, "leave\n");
2663 return 0;
2664}
2665
b08c1d97
LC		 2666static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
2667 struct ieee80211_chanctx_conf *ctx)
8ca151b5 2668{
fe0f2de3
IP		 2669 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2670 struct iwl_mvm_phy_ctxt *phy_ctxt;
8ca151b5
JB		 2671 int ret;
2672
b08c1d97
LC		 2673 lockdep_assert_held(&mvm->mutex);
2674
53a9d61e 2675 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
fe0f2de3 2676
fe0f2de3
IP		 2677 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2678 if (!phy_ctxt) {
2679 ret = -ENOSPC;
2680 goto out;
2681 }
8ca151b5 2682
dcbc3e1a 2683 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
53a9d61e
IP		 2684 ctx->rx_chains_static,
2685 ctx->rx_chains_dynamic);
fe0f2de3
IP		 2686 if (ret) {
2687 IWL_ERR(mvm, "Failed to add PHY context\n");
2688 goto out;
2689 }
2690
53a9d61e 2691 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
fe0f2de3
IP		 2692 *phy_ctxt_id = phy_ctxt->id;
2693out:
b08c1d97
LC		 2694 return ret;
2695}
2696
2697static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2698 struct ieee80211_chanctx_conf *ctx)
2699{
2700 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2701 int ret;
2702
2703 mutex_lock(&mvm->mutex);
2704 ret = __iwl_mvm_add_chanctx(mvm, ctx);
8ca151b5 2705 mutex_unlock(&mvm->mutex);
b08c1d97 2706
8ca151b5
JB		 2707 return ret;
2708}
2709
b08c1d97
LC		 2710static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
2711 struct ieee80211_chanctx_conf *ctx)
2712{
2713 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2714 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2715
2716 lockdep_assert_held(&mvm->mutex);
2717
2718 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2719}
2720
8ca151b5
JB		 2721static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2722 struct ieee80211_chanctx_conf *ctx)
2723{
2724 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
8ca151b5
JB		 2725
2726 mutex_lock(&mvm->mutex);
b08c1d97 2727 __iwl_mvm_remove_chanctx(mvm, ctx);
8ca151b5
JB		 2728 mutex_unlock(&mvm->mutex);
2729}
2730
2731static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2732 struct ieee80211_chanctx_conf *ctx,
2733 u32 changed)
2734{
2735 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
fe0f2de3
IP		 2736 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2737 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5 2738
31d385ae
IP		 2739 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2740 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2741 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2dceedae
AN		 2742 IEEE80211_CHANCTX_CHANGE_RADAR |
2743 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
31d385ae
IP		 2744 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2745 phy_ctxt->ref, changed))
2746 return;
2747
8ca151b5 2748 mutex_lock(&mvm->mutex);
4d66449a 2749 iwl_mvm_bt_coex_vif_change(mvm);
dcbc3e1a 2750 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
8ca151b5
JB		 2751 ctx->rx_chains_static,
2752 ctx->rx_chains_dynamic);
2753 mutex_unlock(&mvm->mutex);
2754}
2755
b08c1d97
LC		 2756static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
2757 struct ieee80211_vif *vif,
f0c97783
LC		 2758 struct ieee80211_chanctx_conf *ctx,
2759 bool switching_chanctx)
8ca151b5 2760{
fe0f2de3
IP		 2761 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2762 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
8ca151b5
JB		 2763 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2764 int ret;
2765
b08c1d97 2766 lockdep_assert_held(&mvm->mutex);
8ca151b5 2767
fe0f2de3 2768 mvmvif->phy_ctxt = phy_ctxt;
8ca151b5
JB		 2769
2770 switch (vif->type) {
2771 case NL80211_IFTYPE_AP:
bd3398e2
AO		 2772 /* Unless it's a CSA flow we have nothing to do here */
2773 if (vif->csa_active) {
2774 mvmvif->ap_ibss_active = true;
2775 break;
2776 }
5023d966 2777 case NL80211_IFTYPE_ADHOC:
8ca151b5
JB		 2778 /*
2779 * The AP binding flow is handled as part of the start_ap flow
5023d966 2780 * (in bss_info_changed), similarly for IBSS.
8ca151b5
JB		 2781 */
2782 ret = 0;
b08c1d97 2783 goto out;
8ca151b5 2784 case NL80211_IFTYPE_STATION:
2533edce 2785 break;
8ca151b5 2786 case NL80211_IFTYPE_MONITOR:
2533edce
LC		 2787 /* always disable PS when a monitor interface is active */
2788 mvmvif->ps_disabled = true;
8ca151b5
JB		 2789 break;
2790 default:
2791 ret = -EINVAL;
b08c1d97 2792 goto out;
8ca151b5
JB		 2793 }
2794
2795 ret = iwl_mvm_binding_add_vif(mvm, vif);
2796 if (ret)
b08c1d97 2797 goto out;
8ca151b5
JB		 2798
2799 /*
92d85562
AB		 2800 * Power state must be updated before quotas,
2801 * otherwise fw will complain.
2802 */
999609f1 2803 iwl_mvm_power_update_mac(mvm);
92d85562
AB		 2804
2805 /* Setting the quota at this stage is only required for monitor
8ca151b5
JB		 2806 * interfaces. For the other types, the bss_info changed flow
2807 * will handle quota settings.
2808 */
2809 if (vif->type == NL80211_IFTYPE_MONITOR) {
1e1391ca 2810 mvmvif->monitor_active = true;
0166230c 2811 ret = iwl_mvm_update_quotas(mvm, NULL);
8ca151b5
JB		 2812 if (ret)
2813 goto out_remove_binding;
2814 }
2815
bd3398e2 2816 /* Handle binding during CSA */
f0c97783
LC		 2817 if ((vif->type == NL80211_IFTYPE_AP) ||
2818 (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
0166230c 2819 iwl_mvm_update_quotas(mvm, NULL);
3dfd3a97 2820 iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
bd3398e2
AO		 2821 }
2822
0ce04ce7
LC		 2823 if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
2824 struct iwl_mvm_sta *mvmsta;
2825
2826 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2827 mvmvif->ap_sta_id);
2828
2829 if (WARN_ON(!mvmsta))
2830 goto out;
2831
2832 /* TODO: only re-enable after the first beacon */
2833 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
2834 }
2835
b08c1d97 2836 goto out;
8ca151b5 2837
b08c1d97 2838out_remove_binding:
8ca151b5 2839 iwl_mvm_binding_remove_vif(mvm, vif);
999609f1 2840 iwl_mvm_power_update_mac(mvm);
b08c1d97 2841out:
8ca151b5
JB		 2842 if (ret)
2843 mvmvif->phy_ctxt = NULL;
2844 return ret;
2845}
b08c1d97
LC		 2846static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2847 struct ieee80211_vif *vif,
2848 struct ieee80211_chanctx_conf *ctx)
8ca151b5
JB		 2849{
2850 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b08c1d97 2851 int ret;
8ca151b5
JB		 2852
2853 mutex_lock(&mvm->mutex);
f0c97783 2854 ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
b08c1d97
LC		 2855 mutex_unlock(&mvm->mutex);
2856
2857 return ret;
2858}
2859
2860static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
2861 struct ieee80211_vif *vif,
f0c97783
LC		 2862 struct ieee80211_chanctx_conf *ctx,
2863 bool switching_chanctx)
b08c1d97
LC		 2864{
2865 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
f0c97783 2866 struct ieee80211_vif *disabled_vif = NULL;
0ce04ce7 2867 struct iwl_mvm_sta *mvmsta;
b08c1d97
LC		 2868
2869 lockdep_assert_held(&mvm->mutex);
8ca151b5
JB		 2870
2871 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2872
8ca151b5 2873 switch (vif->type) {
5023d966 2874 case NL80211_IFTYPE_ADHOC:
b08c1d97 2875 goto out;
8ca151b5 2876 case NL80211_IFTYPE_MONITOR:
1e1391ca 2877 mvmvif->monitor_active = false;
2533edce 2878 mvmvif->ps_disabled = false;
8ca151b5 2879 break;
bd3398e2
AO		 2880 case NL80211_IFTYPE_AP:
2881 /* This part is triggered only during CSA */
2882 if (!vif->csa_active || !mvmvif->ap_ibss_active)
b08c1d97 2883 goto out;
bd3398e2 2884
003e5236
AO		 2885 /* Set CS bit on all the stations */
2886 iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
2887
2888 /* Save blocked iface, the timeout is set on the next beacon */
2889 rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
2890
bd3398e2 2891 mvmvif->ap_ibss_active = false;
f0c97783
LC		 2892 break;
2893 case NL80211_IFTYPE_STATION:
2894 if (!switching_chanctx)
2895 break;
2896
2897 disabled_vif = vif;
2898
0ce04ce7
LC		 2899 mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
2900 mvmvif->ap_sta_id);
2901
2902 if (!WARN_ON(!mvmsta))
2903 iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
2904
3dfd3a97 2905 iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
f0c97783 2906 break;
8ca151b5
JB		 2907 default:
2908 break;
2909 }
2910
f0c97783 2911 iwl_mvm_update_quotas(mvm, disabled_vif);
1e1391ca 2912 iwl_mvm_binding_remove_vif(mvm, vif);
1c2abf72 2913
b08c1d97 2914out:
a11e144e 2915 mvmvif->phy_ctxt = NULL;
999609f1 2916 iwl_mvm_power_update_mac(mvm);
b08c1d97
LC		 2917}
2918
2919static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2920 struct ieee80211_vif *vif,
2921 struct ieee80211_chanctx_conf *ctx)
2922{
2923 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2924
2925 mutex_lock(&mvm->mutex);
f0c97783 2926 __iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
8ca151b5
JB		 2927 mutex_unlock(&mvm->mutex);
2928}
2929
b08c1d97
LC		 2930static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
2931 struct ieee80211_vif_chanctx_switch *vifs,
2932 int n_vifs,
2933 enum ieee80211_chanctx_switch_mode mode)
2934{
2935 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2936 int ret;
2937
2938 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2939 if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
2940 return -EOPNOTSUPP;
2941
2942 mutex_lock(&mvm->mutex);
f0c97783 2943 __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
b08c1d97
LC		 2944 __iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
2945
2946 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
2947 if (ret) {
2948 IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
2949 goto out_reassign;
2950 }
2951
f0c97783
LC		 2952 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
2953 true);
b08c1d97
LC		 2954 if (ret) {
2955 IWL_ERR(mvm,
2956 "failed to assign new_ctx during channel switch\n");
2957 goto out_remove;
2958 }
2959
f697267f
AN		 2960 /* we don't support TDLS during DCM - can be caused by channel switch */
2961 if (iwl_mvm_phy_ctx_count(mvm) > 1)
2962 iwl_mvm_teardown_tdls_peers(mvm);
2963
b08c1d97
LC		 2964 goto out;
2965
2966out_remove:
2967 __iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
2968
2969out_reassign:
2970 ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
2971 if (ret) {
2972 IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
2973 goto out_restart;
2974 }
2975
f0c97783
LC		 2976 ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
2977 true);
b08c1d97
LC		 2978 if (ret) {
2979 IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
2980 goto out_restart;
2981 }
2982
2983 goto out;
2984
2985out_restart:
2986 /* things keep failing, better restart the hw */
2987 iwl_mvm_nic_restart(mvm, false);
2988
2989out:
2990 mutex_unlock(&mvm->mutex);
2991 return ret;
2992}
2993
8ca151b5
JB		 2994static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2995 struct ieee80211_sta *sta,
2996 bool set)
2997{
2998 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2999 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
3000
3001 if (!mvm_sta || !mvm_sta->vif) {
3002 IWL_ERR(mvm, "Station is not associated to a vif\n");
3003 return -EINVAL;
3004 }
3005
3006 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
3007}
3008
507cadf2
DS		 3009#ifdef CONFIG_NL80211_TESTMODE
3010static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
3011 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
3012 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
f6c6ad42 3013 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
507cadf2
DS		 3014};
3015
3016static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
3017 struct ieee80211_vif *vif,
3018 void *data, int len)
3019{
3020 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
3021 int err;
3022 u32 noa_duration;
3023
3024 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
3025 if (err)
3026 return err;
3027
3028 if (!tb[IWL_MVM_TM_ATTR_CMD])
3029 return -EINVAL;
3030
3031 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
3032 case IWL_MVM_TM_CMD_SET_NOA:
3033 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
3034 !vif->bss_conf.enable_beacon ||
3035 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
3036 return -EINVAL;
3037
3038 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
3039 if (noa_duration >= vif->bss_conf.beacon_int)
3040 return -EINVAL;
3041
3042 mvm->noa_duration = noa_duration;
3043 mvm->noa_vif = vif;
3044
0166230c 3045 return iwl_mvm_update_quotas(mvm, NULL);
f6c6ad42
JB		 3046 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
3047 /* must be associated client vif - ignore authorized */
3048 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
3049 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
3050 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
3051 return -EINVAL;
3052
3053 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
a1022927
EG		 3054 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
3055 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
507cadf2
DS		 3056 }
3057
3058 return -EOPNOTSUPP;
3059}
3060
3061static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
3062 struct ieee80211_vif *vif,
3063 void *data, int len)
3064{
3065 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3066 int err;
3067
3068 mutex_lock(&mvm->mutex);
3069 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
3070 mutex_unlock(&mvm->mutex);
3071
3072 return err;
3073}
3074#endif
3075
bd3398e2
AO		 3076static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
3077 struct ieee80211_vif *vif,
3078 struct cfg80211_chan_def *chandef)
3079{
3080 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
664322fa 3081 struct ieee80211_vif *csa_vif;
bd3398e2
AO		 3082
3083 mutex_lock(&mvm->mutex);
664322fa
AO		 3084
3085 csa_vif = rcu_dereference_protected(mvm->csa_vif,
3086 lockdep_is_held(&mvm->mutex));
3087 if (WARN(csa_vif && csa_vif->csa_active,
bd3398e2
AO		 3088 "Another CSA is already in progress"))
3089 goto out_unlock;
3090
3091 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
3092 chandef->center_freq1);
664322fa 3093 rcu_assign_pointer(mvm->csa_vif, vif);
bd3398e2
AO		 3094
3095out_unlock:
3096 mutex_unlock(&mvm->mutex);
3097}
3098
c5b0e7c0
EG		 3099static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
3100 struct ieee80211_vif *vif, u32 queues, bool drop)
3101{
3102 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3103 struct iwl_mvm_vif *mvmvif;
3104 struct iwl_mvm_sta *mvmsta;
3105
3106 if (!vif || vif->type != NL80211_IFTYPE_STATION)
3107 return;
3108
3109 mutex_lock(&mvm->mutex);
3110 mvmvif = iwl_mvm_vif_from_mac80211(vif);
3111 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
3112
480acbce
JB		 3113 if (WARN_ON_ONCE(!mvmsta)) {
3114 mutex_unlock(&mvm->mutex);
3115 return;
3116 }
c5b0e7c0
EG		 3117
3118 if (drop) {
3119 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
3120 IWL_ERR(mvm, "flush request fail\n");
480acbce 3121 mutex_unlock(&mvm->mutex);
c5b0e7c0 3122 } else {
480acbce
JB		 3123 u32 tfd_queue_msk = mvmsta->tfd_queue_msk;
3124 mutex_unlock(&mvm->mutex);
3125
3126 /* this can take a while, and we may need/want other operations
3127 * to succeed while doing this, so do it without the mutex held
3128 */
3129 iwl_trans_wait_tx_queue_empty(mvm->trans, tfd_queue_msk);
c5b0e7c0 3130 }
c5b0e7c0
EG		 3131}
3132
e5209263 3133const struct ieee80211_ops iwl_mvm_hw_ops = {
8ca151b5
JB		 3134 .tx = iwl_mvm_mac_tx,
3135 .ampdu_action = iwl_mvm_mac_ampdu_action,
3136 .start = iwl_mvm_mac_start,
cf2c92d8 3137 .reconfig_complete = iwl_mvm_mac_reconfig_complete,
8ca151b5
JB		 3138 .stop = iwl_mvm_mac_stop,
3139 .add_interface = iwl_mvm_mac_add_interface,
3140 .remove_interface = iwl_mvm_mac_remove_interface,
3141 .config = iwl_mvm_mac_config,
e59647ea 3142 .prepare_multicast = iwl_mvm_prepare_multicast,
8ca151b5
JB		 3143 .configure_filter = iwl_mvm_configure_filter,
3144 .bss_info_changed = iwl_mvm_bss_info_changed,
3145 .hw_scan = iwl_mvm_mac_hw_scan,
3146 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
1ddbbb0c 3147 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
8ca151b5
JB		 3148 .sta_state = iwl_mvm_mac_sta_state,
3149 .sta_notify = iwl_mvm_mac_sta_notify,
3150 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
3e56eadf 3151 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
8ca151b5 3152 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
1f3b0ff8 3153 .sta_rc_update = iwl_mvm_sta_rc_update,
8ca151b5
JB		 3154 .conf_tx = iwl_mvm_mac_conf_tx,
3155 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
07ecd897 3156 .mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
c5b0e7c0 3157 .flush = iwl_mvm_mac_flush,
35a000b7
DS		 3158 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
3159 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
8ca151b5
JB		 3160 .set_key = iwl_mvm_mac_set_key,
3161 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
3162 .remain_on_channel = iwl_mvm_roc,
3163 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
8ca151b5
JB		 3164 .add_chanctx = iwl_mvm_add_chanctx,
3165 .remove_chanctx = iwl_mvm_remove_chanctx,
3166 .change_chanctx = iwl_mvm_change_chanctx,
3167 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
3168 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
b08c1d97 3169 .switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
8ca151b5 3170
5023d966
JB		 3171 .start_ap = iwl_mvm_start_ap_ibss,
3172 .stop_ap = iwl_mvm_stop_ap_ibss,
3173 .join_ibss = iwl_mvm_start_ap_ibss,
3174 .leave_ibss = iwl_mvm_stop_ap_ibss,
8ca151b5
JB		 3175
3176 .set_tim = iwl_mvm_set_tim,
3177
bd3398e2
AO		 3178 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
3179
507cadf2
DS		 3180 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
3181
8ca151b5
JB		 3182#ifdef CONFIG_PM_SLEEP
3183 /* look at d3.c */
3184 .suspend = iwl_mvm_suspend,
3185 .resume = iwl_mvm_resume,
3186 .set_wakeup = iwl_mvm_set_wakeup,
3187 .set_rekey_data = iwl_mvm_set_rekey_data,
3188#if IS_ENABLED(CONFIG_IPV6)
3189 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
3190#endif
3191 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
3192#endif
3193};
Linux kernel - Deliverables
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