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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwif...
[mirror_ubuntu-zesty-kernel.git] / drivers / net / wireless / iwlwifi / mvm / mac80211.c
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 *
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
13 *
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
22 * USA
23 *
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
26 *
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
30 *
31 * BSD LICENSE
32 *
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
35 *
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
38 * are met:
39 *
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
45 * distribution.
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
49 *
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
61 *
62 *****************************************************************************/
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/skbuff.h>
66 #include <linux/netdevice.h>
67 #include <linux/etherdevice.h>
68 #include <linux/ip.h>
69 #include <linux/if_arp.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
72 #include <net/tcp.h>
73
74 #include "iwl-op-mode.h"
75 #include "iwl-io.h"
76 #include "mvm.h"
77 #include "sta.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "iwl-phy-db.h"
82 #include "testmode.h"
83
84 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
85 {
86 .max = 1,
87 .types = BIT(NL80211_IFTYPE_STATION),
88 },
89 {
90 .max = 1,
91 .types = BIT(NL80211_IFTYPE_AP) |
92 BIT(NL80211_IFTYPE_P2P_CLIENT) |
93 BIT(NL80211_IFTYPE_P2P_GO),
94 },
95 {
96 .max = 1,
97 .types = BIT(NL80211_IFTYPE_P2P_DEVICE),
98 },
99 };
100
101 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
102 {
103 .num_different_channels = 1,
104 .max_interfaces = 3,
105 .limits = iwl_mvm_limits,
106 .n_limits = ARRAY_SIZE(iwl_mvm_limits),
107 },
108 };
109
110 #ifdef CONFIG_PM_SLEEP
111 static const struct nl80211_wowlan_tcp_data_token_feature
112 iwl_mvm_wowlan_tcp_token_feature = {
113 .min_len = 0,
114 .max_len = 255,
115 .bufsize = IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS,
116 };
117
118 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support = {
119 .tok = &iwl_mvm_wowlan_tcp_token_feature,
120 .data_payload_max = IWL_WOWLAN_TCP_MAX_PACKET_LEN -
121 sizeof(struct ethhdr) -
122 sizeof(struct iphdr) -
123 sizeof(struct tcphdr),
124 .data_interval_max = 65535, /* __le16 in API */
125 .wake_payload_max = IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN -
126 sizeof(struct ethhdr) -
127 sizeof(struct iphdr) -
128 sizeof(struct tcphdr),
129 .seq = true,
130 };
131 #endif
132
133 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
134 /*
135 * Use the reserved field to indicate magic values.
136 * these values will only be used internally by the driver,
137 * and won't make it to the fw (reserved will be 0).
138 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
139 * be the vif's ip address. in case there is not a single
140 * ip address (0, or more than 1), this attribute will
141 * be skipped.
142 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
143 * the LSB bytes of the vif's mac address
144 */
145 enum {
146 BC_FILTER_MAGIC_NONE = 0,
147 BC_FILTER_MAGIC_IP,
148 BC_FILTER_MAGIC_MAC,
149 };
150
151 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters[] = {
152 {
153 /* arp */
154 .discard = 0,
155 .frame_type = BCAST_FILTER_FRAME_TYPE_ALL,
156 .attrs = {
157 {
158 /* frame type - arp, hw type - ethernet */
159 .offset_type =
160 BCAST_FILTER_OFFSET_PAYLOAD_START,
161 .offset = sizeof(rfc1042_header),
162 .val = cpu_to_be32(0x08060001),
163 .mask = cpu_to_be32(0xffffffff),
164 },
165 {
166 /* arp dest ip */
167 .offset_type =
168 BCAST_FILTER_OFFSET_PAYLOAD_START,
169 .offset = sizeof(rfc1042_header) + 2 +
170 sizeof(struct arphdr) +
171 ETH_ALEN + sizeof(__be32) +
172 ETH_ALEN,
173 .mask = cpu_to_be32(0xffffffff),
174 /* mark it as special field */
175 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_IP),
176 },
177 },
178 },
179 {
180 /* dhcp offer bcast */
181 .discard = 0,
182 .frame_type = BCAST_FILTER_FRAME_TYPE_IPV4,
183 .attrs = {
184 {
185 /* udp dest port - 68 (bootp client)*/
186 .offset_type = BCAST_FILTER_OFFSET_IP_END,
187 .offset = offsetof(struct udphdr, dest),
188 .val = cpu_to_be32(0x00440000),
189 .mask = cpu_to_be32(0xffff0000),
190 },
191 {
192 /* dhcp - lsb bytes of client hw address */
193 .offset_type = BCAST_FILTER_OFFSET_IP_END,
194 .offset = 38,
195 .mask = cpu_to_be32(0xffffffff),
196 /* mark it as special field */
197 .reserved1 = cpu_to_le16(BC_FILTER_MAGIC_MAC),
198 },
199 },
200 },
201 /* last filter must be empty */
202 {},
203 };
204 #endif
205
206 void iwl_mvm_ref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
207 {
208 if (!iwl_mvm_is_d0i3_supported(mvm))
209 return;
210
211 IWL_DEBUG_RPM(mvm, "Take mvm reference - type %d\n", ref_type);
212 WARN_ON(test_and_set_bit(ref_type, mvm->ref_bitmap));
213 iwl_trans_ref(mvm->trans);
214 }
215
216 void iwl_mvm_unref(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
217 {
218 if (!iwl_mvm_is_d0i3_supported(mvm))
219 return;
220
221 IWL_DEBUG_RPM(mvm, "Leave mvm reference - type %d\n", ref_type);
222 WARN_ON(!test_and_clear_bit(ref_type, mvm->ref_bitmap));
223 iwl_trans_unref(mvm->trans);
224 }
225
226 static void
227 iwl_mvm_unref_all_except(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref)
228 {
229 int i;
230
231 if (!iwl_mvm_is_d0i3_supported(mvm))
232 return;
233
234 for_each_set_bit(i, mvm->ref_bitmap, IWL_MVM_REF_COUNT) {
235 if (ref == i)
236 continue;
237
238 IWL_DEBUG_RPM(mvm, "Cleanup: remove mvm ref type %d\n", i);
239 clear_bit(i, mvm->ref_bitmap);
240 iwl_trans_unref(mvm->trans);
241 }
242 }
243
244 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
245 {
246 int i;
247
248 memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
249 for (i = 0; i < NUM_PHY_CTX; i++) {
250 mvm->phy_ctxts[i].id = i;
251 mvm->phy_ctxts[i].ref = 0;
252 }
253 }
254
255 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
256 {
257 /* we create the 802.11 header and SSID element */
258 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
259 return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
260 return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
261 }
262
263 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
264 {
265 struct ieee80211_hw *hw = mvm->hw;
266 int num_mac, ret, i;
267
268 /* Tell mac80211 our characteristics */
269 hw->flags = IEEE80211_HW_SIGNAL_DBM |
270 IEEE80211_HW_SPECTRUM_MGMT |
271 IEEE80211_HW_REPORTS_TX_ACK_STATUS |
272 IEEE80211_HW_QUEUE_CONTROL |
273 IEEE80211_HW_WANT_MONITOR_VIF |
274 IEEE80211_HW_SUPPORTS_PS |
275 IEEE80211_HW_SUPPORTS_DYNAMIC_PS |
276 IEEE80211_HW_AMPDU_AGGREGATION |
277 IEEE80211_HW_TIMING_BEACON_ONLY |
278 IEEE80211_HW_CONNECTION_MONITOR |
279 IEEE80211_HW_SUPPORTS_UAPSD |
280 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
281 IEEE80211_HW_SUPPORTS_STATIC_SMPS;
282
283 hw->queues = mvm->first_agg_queue;
284 hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
285 hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
286 IEEE80211_RADIOTAP_MCS_HAVE_STBC;
287 hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
288 hw->rate_control_algorithm = "iwl-mvm-rs";
289 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
290 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
291
292 /*
293 * Enable 11w if advertised by firmware and software crypto
294 * is not enabled (as the firmware will interpret some mgmt
295 * packets, so enabling it with software crypto isn't safe)
296 */
297 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_MFP &&
298 !iwlwifi_mod_params.sw_crypto)
299 hw->flags |= IEEE80211_HW_MFP_CAPABLE;
300
301 /* Disable uAPSD due to firmware issues */
302 if (true)
303 hw->flags &= ~IEEE80211_HW_SUPPORTS_UAPSD;
304
305 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
306 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
307 hw->chanctx_data_size = sizeof(u16);
308
309 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
310 BIT(NL80211_IFTYPE_P2P_CLIENT) |
311 BIT(NL80211_IFTYPE_AP) |
312 BIT(NL80211_IFTYPE_P2P_GO) |
313 BIT(NL80211_IFTYPE_P2P_DEVICE) |
314 BIT(NL80211_IFTYPE_ADHOC);
315
316 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
317 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
318 REGULATORY_DISABLE_BEACON_HINTS;
319
320 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
321 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
322
323 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
324 hw->wiphy->n_iface_combinations =
325 ARRAY_SIZE(iwl_mvm_iface_combinations);
326
327 hw->wiphy->max_remain_on_channel_duration = 10000;
328 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
329
330 /* Extract MAC address */
331 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
332 hw->wiphy->addresses = mvm->addresses;
333 hw->wiphy->n_addresses = 1;
334
335 /* Extract additional MAC addresses if available */
336 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
337 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
338
339 for (i = 1; i < num_mac; i++) {
340 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
341 ETH_ALEN);
342 mvm->addresses[i].addr[5]++;
343 hw->wiphy->n_addresses++;
344 }
345
346 iwl_mvm_reset_phy_ctxts(mvm);
347
348 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
349
350 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
351
352 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
353 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
354 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
355 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
356 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
357 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
358
359 hw->wiphy->hw_version = mvm->trans->hw_id;
360
361 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
362 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
363 else
364 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
365
366 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
367 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
368 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
369 /* we create the 802.11 header and zero length SSID IE. */
370 hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
371
372 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
373 NL80211_FEATURE_P2P_GO_OPPPS;
374
375 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
376
377 /* currently FW API supports only one optional cipher scheme */
378 if (mvm->fw->cs[0].cipher) {
379 mvm->hw->n_cipher_schemes = 1;
380 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
381 }
382
383 #ifdef CONFIG_PM_SLEEP
384 if (iwl_mvm_is_d0i3_supported(mvm) &&
385 device_can_wakeup(mvm->trans->dev)) {
386 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
387 hw->wiphy->wowlan = &mvm->wowlan;
388 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
389 mvm->trans->ops->d3_suspend &&
390 mvm->trans->ops->d3_resume &&
391 device_can_wakeup(mvm->trans->dev)) {
392 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
393 WIPHY_WOWLAN_DISCONNECT |
394 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
395 WIPHY_WOWLAN_RFKILL_RELEASE;
396 if (!iwlwifi_mod_params.sw_crypto)
397 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
398 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
399 WIPHY_WOWLAN_4WAY_HANDSHAKE;
400
401 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
402 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
403 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
404 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
405 hw->wiphy->wowlan = &mvm->wowlan;
406 }
407 #endif
408
409 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
410 /* assign default bcast filtering configuration */
411 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
412 #endif
413
414 ret = iwl_mvm_leds_init(mvm);
415 if (ret)
416 return ret;
417
418 ret = ieee80211_register_hw(mvm->hw);
419 if (ret)
420 iwl_mvm_leds_exit(mvm);
421
422 return ret;
423 }
424
425 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
426 struct ieee80211_sta *sta,
427 struct sk_buff *skb)
428 {
429 struct iwl_mvm_sta *mvmsta;
430 bool defer = false;
431
432 /*
433 * double check the IN_D0I3 flag both before and after
434 * taking the spinlock, in order to prevent taking
435 * the spinlock when not needed.
436 */
437 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
438 return false;
439
440 spin_lock(&mvm->d0i3_tx_lock);
441 /*
442 * testing the flag again ensures the skb dequeue
443 * loop (on d0i3 exit) hasn't run yet.
444 */
445 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
446 goto out;
447
448 mvmsta = iwl_mvm_sta_from_mac80211(sta);
449 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
450 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
451 goto out;
452
453 __skb_queue_tail(&mvm->d0i3_tx, skb);
454 ieee80211_stop_queues(mvm->hw);
455
456 /* trigger wakeup */
457 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
458 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
459
460 defer = true;
461 out:
462 spin_unlock(&mvm->d0i3_tx_lock);
463 return defer;
464 }
465
466 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
467 struct ieee80211_tx_control *control,
468 struct sk_buff *skb)
469 {
470 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
471 struct ieee80211_sta *sta = control->sta;
472 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
473 struct ieee80211_hdr *hdr = (void *)skb->data;
474
475 if (iwl_mvm_is_radio_killed(mvm)) {
476 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
477 goto drop;
478 }
479
480 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
481 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
482 goto drop;
483
484 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
485 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
486 ieee80211_is_mgmt(hdr->frame_control) &&
487 !ieee80211_is_deauth(hdr->frame_control) &&
488 !ieee80211_is_disassoc(hdr->frame_control) &&
489 !ieee80211_is_action(hdr->frame_control)))
490 sta = NULL;
491
492 if (sta) {
493 if (iwl_mvm_defer_tx(mvm, sta, skb))
494 return;
495 if (iwl_mvm_tx_skb(mvm, skb, sta))
496 goto drop;
497 return;
498 }
499
500 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
501 goto drop;
502 return;
503 drop:
504 ieee80211_free_txskb(hw, skb);
505 }
506
507 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
508 {
509 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
510 return false;
511 return true;
512 }
513
514 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
515 {
516 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
517 return false;
518 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
519 return true;
520
521 /* enabled by default */
522 return true;
523 }
524
525 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
526 struct ieee80211_vif *vif,
527 enum ieee80211_ampdu_mlme_action action,
528 struct ieee80211_sta *sta, u16 tid,
529 u16 *ssn, u8 buf_size)
530 {
531 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
532 int ret;
533 bool tx_agg_ref = false;
534
535 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
536 sta->addr, tid, action);
537
538 if (!(mvm->nvm_data->sku_cap_11n_enable))
539 return -EACCES;
540
541 /* return from D0i3 before starting a new Tx aggregation */
542 if (action == IEEE80211_AMPDU_TX_START) {
543 iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG);
544 tx_agg_ref = true;
545
546 /*
547 * wait synchronously until D0i3 exit to get the correct
548 * sequence number for the tid
549 */
550 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
551 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) {
552 WARN_ON_ONCE(1);
553 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
554 return -EIO;
555 }
556 }
557
558 mutex_lock(&mvm->mutex);
559
560 switch (action) {
561 case IEEE80211_AMPDU_RX_START:
562 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
563 ret = -EINVAL;
564 break;
565 }
566 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
567 break;
568 case IEEE80211_AMPDU_RX_STOP:
569 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
570 break;
571 case IEEE80211_AMPDU_TX_START:
572 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
573 ret = -EINVAL;
574 break;
575 }
576 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
577 break;
578 case IEEE80211_AMPDU_TX_STOP_CONT:
579 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
580 break;
581 case IEEE80211_AMPDU_TX_STOP_FLUSH:
582 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
583 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
584 break;
585 case IEEE80211_AMPDU_TX_OPERATIONAL:
586 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
587 break;
588 default:
589 WARN_ON_ONCE(1);
590 ret = -EINVAL;
591 break;
592 }
593 mutex_unlock(&mvm->mutex);
594
595 /*
596 * If the tid is marked as started, we won't use it for offloaded
597 * traffic on the next D0i3 entry. It's safe to unref.
598 */
599 if (tx_agg_ref)
600 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
601
602 return ret;
603 }
604
605 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
606 struct ieee80211_vif *vif)
607 {
608 struct iwl_mvm *mvm = data;
609 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
610
611 mvmvif->uploaded = false;
612 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
613
614 /* does this make sense at all? */
615 mvmvif->color++;
616
617 spin_lock_bh(&mvm->time_event_lock);
618 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
619 spin_unlock_bh(&mvm->time_event_lock);
620
621 mvmvif->phy_ctxt = NULL;
622 }
623
624 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
625 {
626 #ifdef CONFIG_IWLWIFI_DEBUGFS
627 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
628
629 iwl_mvm_fw_error_dump(mvm);
630
631 /* notify the userspace about the error we had */
632 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
633 #endif
634
635 iwl_trans_stop_device(mvm->trans);
636
637 mvm->scan_status = IWL_MVM_SCAN_NONE;
638
639 /* just in case one was running */
640 ieee80211_remain_on_channel_expired(mvm->hw);
641
642 ieee80211_iterate_active_interfaces_atomic(
643 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
644 iwl_mvm_cleanup_iterator, mvm);
645
646 mvm->p2p_device_vif = NULL;
647 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
648
649 iwl_mvm_reset_phy_ctxts(mvm);
650 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
651 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
652
653 ieee80211_wake_queues(mvm->hw);
654
655 /* cleanup all stale references (scan, roc), but keep the
656 * ucode_down ref until reconfig is complete */
657 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
658
659 mvm->vif_count = 0;
660 mvm->rx_ba_sessions = 0;
661 }
662
663 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
664 {
665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
666 int ret;
667
668 mutex_lock(&mvm->mutex);
669
670 /* Clean up some internal and mac80211 state on restart */
671 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
672 iwl_mvm_restart_cleanup(mvm);
673
674 ret = iwl_mvm_up(mvm);
675 mutex_unlock(&mvm->mutex);
676
677 return ret;
678 }
679
680 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
681 {
682 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
683 int ret;
684
685 mutex_lock(&mvm->mutex);
686
687 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
688 iwl_mvm_d0i3_enable_tx(mvm, NULL);
689 ret = iwl_mvm_update_quotas(mvm, NULL);
690 if (ret)
691 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
692 ret);
693
694 /* allow transport/FW low power modes */
695 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
696
697 mutex_unlock(&mvm->mutex);
698 }
699
700 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
701 {
702 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
703
704 flush_work(&mvm->d0i3_exit_work);
705 flush_work(&mvm->async_handlers_wk);
706
707 mutex_lock(&mvm->mutex);
708
709 /* disallow low power states when the FW is down */
710 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
711
712 /* async_handlers_wk is now blocked */
713
714 /*
715 * The work item could be running or queued if the
716 * ROC time event stops just as we get here.
717 */
718 cancel_work_sync(&mvm->roc_done_wk);
719
720 iwl_trans_stop_device(mvm->trans);
721
722 iwl_mvm_async_handlers_purge(mvm);
723 /* async_handlers_list is empty and will stay empty: HW is stopped */
724
725 /* the fw is stopped, the aux sta is dead: clean up driver state */
726 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
727
728 mutex_unlock(&mvm->mutex);
729
730 /*
731 * The worker might have been waiting for the mutex, let it run and
732 * discover that its list is now empty.
733 */
734 cancel_work_sync(&mvm->async_handlers_wk);
735 }
736
737 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
738 {
739 u16 i;
740
741 lockdep_assert_held(&mvm->mutex);
742
743 for (i = 0; i < NUM_PHY_CTX; i++)
744 if (!mvm->phy_ctxts[i].ref)
745 return &mvm->phy_ctxts[i];
746
747 IWL_ERR(mvm, "No available PHY context\n");
748 return NULL;
749 }
750
751 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
752 s8 tx_power)
753 {
754 /* FW is in charge of regulatory enforcement */
755 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
756 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
757 .pwr_restriction = cpu_to_le16(tx_power),
758 };
759
760 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, CMD_SYNC,
761 sizeof(reduce_txpwr_cmd),
762 &reduce_txpwr_cmd);
763 }
764
765 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
766 struct ieee80211_vif *vif)
767 {
768 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
769 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
770 int ret;
771
772 /*
773 * Not much to do here. The stack will not allow interface
774 * types or combinations that we didn't advertise, so we
775 * don't really have to check the types.
776 */
777
778 mutex_lock(&mvm->mutex);
779
780 /* Allocate resources for the MAC context, and add it to the fw */
781 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
782 if (ret)
783 goto out_unlock;
784
785 /* Counting number of interfaces is needed for legacy PM */
786 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
787 mvm->vif_count++;
788
789 /*
790 * The AP binding flow can be done only after the beacon
791 * template is configured (which happens only in the mac80211
792 * start_ap() flow), and adding the broadcast station can happen
793 * only after the binding.
794 * In addition, since modifying the MAC before adding a bcast
795 * station is not allowed by the FW, delay the adding of MAC context to
796 * the point where we can also add the bcast station.
797 * In short: there's not much we can do at this point, other than
798 * allocating resources :)
799 */
800 if (vif->type == NL80211_IFTYPE_AP ||
801 vif->type == NL80211_IFTYPE_ADHOC) {
802 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
803 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
804 qmask,
805 ieee80211_vif_type_p2p(vif));
806 if (ret) {
807 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
808 goto out_release;
809 }
810
811 iwl_mvm_vif_dbgfs_register(mvm, vif);
812 goto out_unlock;
813 }
814
815 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
816 if (ret)
817 goto out_release;
818
819 ret = iwl_mvm_power_update_mac(mvm, vif);
820 if (ret)
821 goto out_release;
822
823 /* beacon filtering */
824 ret = iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
825 if (ret)
826 goto out_remove_mac;
827
828 if (!mvm->bf_allowed_vif &&
829 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
830 mvm->bf_allowed_vif = mvmvif;
831 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
832 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
833 }
834
835 /*
836 * P2P_DEVICE interface does not have a channel context assigned to it,
837 * so a dedicated PHY context is allocated to it and the corresponding
838 * MAC context is bound to it at this stage.
839 */
840 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
841
842 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
843 if (!mvmvif->phy_ctxt) {
844 ret = -ENOSPC;
845 goto out_free_bf;
846 }
847
848 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
849 ret = iwl_mvm_binding_add_vif(mvm, vif);
850 if (ret)
851 goto out_unref_phy;
852
853 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
854 if (ret)
855 goto out_unbind;
856
857 /* Save a pointer to p2p device vif, so it can later be used to
858 * update the p2p device MAC when a GO is started/stopped */
859 mvm->p2p_device_vif = vif;
860 }
861
862 iwl_mvm_vif_dbgfs_register(mvm, vif);
863 goto out_unlock;
864
865 out_unbind:
866 iwl_mvm_binding_remove_vif(mvm, vif);
867 out_unref_phy:
868 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
869 out_free_bf:
870 if (mvm->bf_allowed_vif == mvmvif) {
871 mvm->bf_allowed_vif = NULL;
872 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
873 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
874 }
875 out_remove_mac:
876 mvmvif->phy_ctxt = NULL;
877 iwl_mvm_mac_ctxt_remove(mvm, vif);
878 out_release:
879 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
880 mvm->vif_count--;
881
882 iwl_mvm_mac_ctxt_release(mvm, vif);
883 out_unlock:
884 mutex_unlock(&mvm->mutex);
885
886 return ret;
887 }
888
889 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
890 struct ieee80211_vif *vif)
891 {
892 u32 tfd_msk = 0, ac;
893
894 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
895 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
896 tfd_msk |= BIT(vif->hw_queue[ac]);
897
898 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
899 tfd_msk |= BIT(vif->cab_queue);
900
901 if (tfd_msk) {
902 mutex_lock(&mvm->mutex);
903 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
904 mutex_unlock(&mvm->mutex);
905 }
906
907 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
908 /*
909 * Flush the ROC worker which will flush the OFFCHANNEL queue.
910 * We assume here that all the packets sent to the OFFCHANNEL
911 * queue are sent in ROC session.
912 */
913 flush_work(&mvm->roc_done_wk);
914 } else {
915 /*
916 * By now, all the AC queues are empty. The AGG queues are
917 * empty too. We already got all the Tx responses for all the
918 * packets in the queues. The drain work can have been
919 * triggered. Flush it.
920 */
921 flush_work(&mvm->sta_drained_wk);
922 }
923 }
924
925 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
926 struct ieee80211_vif *vif)
927 {
928 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
929 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
930
931 iwl_mvm_prepare_mac_removal(mvm, vif);
932
933 mutex_lock(&mvm->mutex);
934
935 if (mvm->bf_allowed_vif == mvmvif) {
936 mvm->bf_allowed_vif = NULL;
937 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
938 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
939 }
940
941 iwl_mvm_vif_dbgfs_clean(mvm, vif);
942
943 /*
944 * For AP/GO interface, the tear down of the resources allocated to the
945 * interface is be handled as part of the stop_ap flow.
946 */
947 if (vif->type == NL80211_IFTYPE_AP ||
948 vif->type == NL80211_IFTYPE_ADHOC) {
949 #ifdef CONFIG_NL80211_TESTMODE
950 if (vif == mvm->noa_vif) {
951 mvm->noa_vif = NULL;
952 mvm->noa_duration = 0;
953 }
954 #endif
955 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
956 goto out_release;
957 }
958
959 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
960 mvm->p2p_device_vif = NULL;
961 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
962 iwl_mvm_binding_remove_vif(mvm, vif);
963 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
964 mvmvif->phy_ctxt = NULL;
965 }
966
967 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
968 mvm->vif_count--;
969
970 iwl_mvm_power_update_mac(mvm, vif);
971 iwl_mvm_mac_ctxt_remove(mvm, vif);
972
973 out_release:
974 iwl_mvm_mac_ctxt_release(mvm, vif);
975 mutex_unlock(&mvm->mutex);
976 }
977
978 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
979 {
980 return 0;
981 }
982
983 struct iwl_mvm_mc_iter_data {
984 struct iwl_mvm *mvm;
985 int port_id;
986 };
987
988 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
989 struct ieee80211_vif *vif)
990 {
991 struct iwl_mvm_mc_iter_data *data = _data;
992 struct iwl_mvm *mvm = data->mvm;
993 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
994 int ret, len;
995
996 /* if we don't have free ports, mcast frames will be dropped */
997 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
998 return;
999
1000 if (vif->type != NL80211_IFTYPE_STATION ||
1001 !vif->bss_conf.assoc)
1002 return;
1003
1004 cmd->port_id = data->port_id++;
1005 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1006 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1007
1008 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_SYNC, len, cmd);
1009 if (ret)
1010 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1011 }
1012
1013 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1014 {
1015 struct iwl_mvm_mc_iter_data iter_data = {
1016 .mvm = mvm,
1017 };
1018
1019 lockdep_assert_held(&mvm->mutex);
1020
1021 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1022 return;
1023
1024 ieee80211_iterate_active_interfaces(
1025 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1026 iwl_mvm_mc_iface_iterator, &iter_data);
1027 }
1028
1029 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1030 struct netdev_hw_addr_list *mc_list)
1031 {
1032 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1033 struct iwl_mcast_filter_cmd *cmd;
1034 struct netdev_hw_addr *addr;
1035 int addr_count = netdev_hw_addr_list_count(mc_list);
1036 bool pass_all = false;
1037 int len;
1038
1039 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
1040 pass_all = true;
1041 addr_count = 0;
1042 }
1043
1044 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1045 cmd = kzalloc(len, GFP_ATOMIC);
1046 if (!cmd)
1047 return 0;
1048
1049 if (pass_all) {
1050 cmd->pass_all = 1;
1051 return (u64)(unsigned long)cmd;
1052 }
1053
1054 netdev_hw_addr_list_for_each(addr, mc_list) {
1055 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1056 cmd->count, addr->addr);
1057 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1058 addr->addr, ETH_ALEN);
1059 cmd->count++;
1060 }
1061
1062 return (u64)(unsigned long)cmd;
1063 }
1064
1065 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1066 unsigned int changed_flags,
1067 unsigned int *total_flags,
1068 u64 multicast)
1069 {
1070 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1071 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1072
1073 mutex_lock(&mvm->mutex);
1074
1075 /* replace previous configuration */
1076 kfree(mvm->mcast_filter_cmd);
1077 mvm->mcast_filter_cmd = cmd;
1078
1079 if (!cmd)
1080 goto out;
1081
1082 iwl_mvm_recalc_multicast(mvm);
1083 out:
1084 mutex_unlock(&mvm->mutex);
1085 *total_flags = 0;
1086 }
1087
1088 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1089 struct iwl_bcast_iter_data {
1090 struct iwl_mvm *mvm;
1091 struct iwl_bcast_filter_cmd *cmd;
1092 u8 current_filter;
1093 };
1094
1095 static void
1096 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1097 const struct iwl_fw_bcast_filter *in_filter,
1098 struct iwl_fw_bcast_filter *out_filter)
1099 {
1100 struct iwl_fw_bcast_filter_attr *attr;
1101 int i;
1102
1103 memcpy(out_filter, in_filter, sizeof(*out_filter));
1104
1105 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1106 attr = &out_filter->attrs[i];
1107
1108 if (!attr->mask)
1109 break;
1110
1111 switch (attr->reserved1) {
1112 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1113 if (vif->bss_conf.arp_addr_cnt != 1) {
1114 attr->mask = 0;
1115 continue;
1116 }
1117
1118 attr->val = vif->bss_conf.arp_addr_list[0];
1119 break;
1120 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1121 attr->val = *(__be32 *)&vif->addr[2];
1122 break;
1123 default:
1124 break;
1125 }
1126 attr->reserved1 = 0;
1127 out_filter->num_attrs++;
1128 }
1129 }
1130
1131 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1132 struct ieee80211_vif *vif)
1133 {
1134 struct iwl_bcast_iter_data *data = _data;
1135 struct iwl_mvm *mvm = data->mvm;
1136 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1137 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1138 struct iwl_fw_bcast_mac *bcast_mac;
1139 int i;
1140
1141 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1142 return;
1143
1144 bcast_mac = &cmd->macs[mvmvif->id];
1145
1146 /* enable filtering only for associated stations */
1147 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1148 return;
1149
1150 bcast_mac->default_discard = 1;
1151
1152 /* copy all configured filters */
1153 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1154 /*
1155 * Make sure we don't exceed our filters limit.
1156 * if there is still a valid filter to be configured,
1157 * be on the safe side and just allow bcast for this mac.
1158 */
1159 if (WARN_ON_ONCE(data->current_filter >=
1160 ARRAY_SIZE(cmd->filters))) {
1161 bcast_mac->default_discard = 0;
1162 bcast_mac->attached_filters = 0;
1163 break;
1164 }
1165
1166 iwl_mvm_set_bcast_filter(vif,
1167 &mvm->bcast_filters[i],
1168 &cmd->filters[data->current_filter]);
1169
1170 /* skip current filter if it contains no attributes */
1171 if (!cmd->filters[data->current_filter].num_attrs)
1172 continue;
1173
1174 /* attach the filter to current mac */
1175 bcast_mac->attached_filters |=
1176 cpu_to_le16(BIT(data->current_filter));
1177
1178 data->current_filter++;
1179 }
1180 }
1181
1182 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1183 struct iwl_bcast_filter_cmd *cmd)
1184 {
1185 struct iwl_bcast_iter_data iter_data = {
1186 .mvm = mvm,
1187 .cmd = cmd,
1188 };
1189
1190 memset(cmd, 0, sizeof(*cmd));
1191 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1192 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1193
1194 #ifdef CONFIG_IWLWIFI_DEBUGFS
1195 /* use debugfs filters/macs if override is configured */
1196 if (mvm->dbgfs_bcast_filtering.override) {
1197 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1198 sizeof(cmd->filters));
1199 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1200 sizeof(cmd->macs));
1201 return true;
1202 }
1203 #endif
1204
1205 /* if no filters are configured, do nothing */
1206 if (!mvm->bcast_filters)
1207 return false;
1208
1209 /* configure and attach these filters for each associated sta vif */
1210 ieee80211_iterate_active_interfaces(
1211 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1212 iwl_mvm_bcast_filter_iterator, &iter_data);
1213
1214 return true;
1215 }
1216 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1217 struct ieee80211_vif *vif)
1218 {
1219 struct iwl_bcast_filter_cmd cmd;
1220
1221 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1222 return 0;
1223
1224 /* bcast filtering isn't supported for P2P client */
1225 if (vif->p2p)
1226 return 0;
1227
1228 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1229 return 0;
1230
1231 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, CMD_SYNC,
1232 sizeof(cmd), &cmd);
1233 }
1234 #else
1235 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1236 struct ieee80211_vif *vif)
1237 {
1238 return 0;
1239 }
1240 #endif
1241
1242 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1243 struct ieee80211_vif *vif,
1244 struct ieee80211_bss_conf *bss_conf,
1245 u32 changes)
1246 {
1247 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1248 int ret;
1249
1250 /*
1251 * Re-calculate the tsf id, as the master-slave relations depend on the
1252 * beacon interval, which was not known when the station interface was
1253 * added.
1254 */
1255 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1256 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1257
1258 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1259 if (ret)
1260 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1261
1262 if (changes & BSS_CHANGED_ASSOC) {
1263 if (bss_conf->assoc) {
1264 /* add quota for this interface */
1265 ret = iwl_mvm_update_quotas(mvm, vif);
1266 if (ret) {
1267 IWL_ERR(mvm, "failed to update quotas\n");
1268 return;
1269 }
1270
1271 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1272 &mvm->status)) {
1273 /*
1274 * If we're restarting then the firmware will
1275 * obviously have lost synchronisation with
1276 * the AP. It will attempt to synchronise by
1277 * itself, but we can make it more reliable by
1278 * scheduling a session protection time event.
1279 *
1280 * The firmware needs to receive a beacon to
1281 * catch up with synchronisation, use 110% of
1282 * the beacon interval.
1283 *
1284 * Set a large maximum delay to allow for more
1285 * than a single interface.
1286 */
1287 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1288 iwl_mvm_protect_session(mvm, vif, dur, dur,
1289 5 * dur);
1290 }
1291
1292 iwl_mvm_sf_update(mvm, vif, false);
1293 iwl_mvm_power_vif_assoc(mvm, vif);
1294 if (vif->p2p)
1295 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1296 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1297 /*
1298 * If update fails - SF might be running in associated
1299 * mode while disassociated - which is forbidden.
1300 */
1301 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1302 "Failed to update SF upon disassociation\n");
1303
1304 /* remove AP station now that the MAC is unassoc */
1305 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1306 if (ret)
1307 IWL_ERR(mvm, "failed to remove AP station\n");
1308
1309 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1310 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1311 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1312 /* remove quota for this interface */
1313 ret = iwl_mvm_update_quotas(mvm, NULL);
1314 if (ret)
1315 IWL_ERR(mvm, "failed to update quotas\n");
1316
1317 if (vif->p2p)
1318 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1319 }
1320
1321 iwl_mvm_recalc_multicast(mvm);
1322 iwl_mvm_configure_bcast_filter(mvm, vif);
1323
1324 /* reset rssi values */
1325 mvmvif->bf_data.ave_beacon_signal = 0;
1326
1327 iwl_mvm_bt_coex_vif_change(mvm);
1328 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1329 IEEE80211_SMPS_AUTOMATIC);
1330 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1331 /*
1332 * We received a beacon _after_ association so
1333 * remove the session protection.
1334 */
1335 iwl_mvm_remove_time_event(mvm, mvmvif,
1336 &mvmvif->time_event_data);
1337 iwl_mvm_sf_update(mvm, vif, false);
1338 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, CMD_SYNC));
1339 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1340 BSS_CHANGED_QOS)) {
1341 ret = iwl_mvm_power_update_mac(mvm, vif);
1342 if (ret)
1343 IWL_ERR(mvm, "failed to update power mode\n");
1344 }
1345 if (changes & BSS_CHANGED_TXPOWER) {
1346 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1347 bss_conf->txpower);
1348 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1349 }
1350
1351 if (changes & BSS_CHANGED_CQM) {
1352 IWL_DEBUG_MAC80211(mvm, "cqm info_changed");
1353 /* reset cqm events tracking */
1354 mvmvif->bf_data.last_cqm_event = 0;
1355 ret = iwl_mvm_update_beacon_filter(mvm, vif, false, CMD_SYNC);
1356 if (ret)
1357 IWL_ERR(mvm, "failed to update CQM thresholds\n");
1358 }
1359
1360 if (changes & BSS_CHANGED_ARP_FILTER) {
1361 IWL_DEBUG_MAC80211(mvm, "arp filter changed");
1362 iwl_mvm_configure_bcast_filter(mvm, vif);
1363 }
1364 }
1365
1366 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1367 struct ieee80211_vif *vif)
1368 {
1369 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1370 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1371 int ret;
1372
1373 mutex_lock(&mvm->mutex);
1374
1375 /* Send the beacon template */
1376 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1377 if (ret)
1378 goto out_unlock;
1379
1380 /*
1381 * Re-calculate the tsf id, as the master-slave relations depend on the
1382 * beacon interval, which was not known when the AP interface was added.
1383 */
1384 if (vif->type == NL80211_IFTYPE_AP)
1385 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1386
1387 /* Add the mac context */
1388 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1389 if (ret)
1390 goto out_unlock;
1391
1392 /* Perform the binding */
1393 ret = iwl_mvm_binding_add_vif(mvm, vif);
1394 if (ret)
1395 goto out_remove;
1396
1397 /* Send the bcast station. At this stage the TBTT and DTIM time events
1398 * are added and applied to the scheduler */
1399 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1400 if (ret)
1401 goto out_unbind;
1402
1403 /* must be set before quota calculations */
1404 mvmvif->ap_ibss_active = true;
1405
1406 /* power updated needs to be done before quotas */
1407 iwl_mvm_power_update_mac(mvm, vif);
1408
1409 ret = iwl_mvm_update_quotas(mvm, vif);
1410 if (ret)
1411 goto out_quota_failed;
1412
1413 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1414 if (vif->p2p && mvm->p2p_device_vif)
1415 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1416
1417 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1418
1419 iwl_mvm_bt_coex_vif_change(mvm);
1420
1421 mutex_unlock(&mvm->mutex);
1422 return 0;
1423
1424 out_quota_failed:
1425 iwl_mvm_power_update_mac(mvm, vif);
1426 mvmvif->ap_ibss_active = false;
1427 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1428 out_unbind:
1429 iwl_mvm_binding_remove_vif(mvm, vif);
1430 out_remove:
1431 iwl_mvm_mac_ctxt_remove(mvm, vif);
1432 out_unlock:
1433 mutex_unlock(&mvm->mutex);
1434 return ret;
1435 }
1436
1437 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1438 struct ieee80211_vif *vif)
1439 {
1440 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1441 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1442
1443 iwl_mvm_prepare_mac_removal(mvm, vif);
1444
1445 mutex_lock(&mvm->mutex);
1446
1447 mvmvif->ap_ibss_active = false;
1448
1449 iwl_mvm_bt_coex_vif_change(mvm);
1450
1451 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1452
1453 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1454 if (vif->p2p && mvm->p2p_device_vif)
1455 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
1456
1457 iwl_mvm_update_quotas(mvm, NULL);
1458 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1459 iwl_mvm_binding_remove_vif(mvm, vif);
1460
1461 iwl_mvm_power_update_mac(mvm, vif);
1462
1463 iwl_mvm_mac_ctxt_remove(mvm, vif);
1464
1465 mutex_unlock(&mvm->mutex);
1466 }
1467
1468 static void
1469 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1470 struct ieee80211_vif *vif,
1471 struct ieee80211_bss_conf *bss_conf,
1472 u32 changes)
1473 {
1474 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1475
1476 /* Changes will be applied when the AP/IBSS is started */
1477 if (!mvmvif->ap_ibss_active)
1478 return;
1479
1480 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1481 BSS_CHANGED_BANDWIDTH) &&
1482 iwl_mvm_mac_ctxt_changed(mvm, vif))
1483 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1484
1485 /* Need to send a new beacon template to the FW */
1486 if (changes & BSS_CHANGED_BEACON &&
1487 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1488 IWL_WARN(mvm, "Failed updating beacon data\n");
1489 }
1490
1491 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1492 struct ieee80211_vif *vif,
1493 struct ieee80211_bss_conf *bss_conf,
1494 u32 changes)
1495 {
1496 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1497
1498 mutex_lock(&mvm->mutex);
1499
1500 switch (vif->type) {
1501 case NL80211_IFTYPE_STATION:
1502 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1503 break;
1504 case NL80211_IFTYPE_AP:
1505 case NL80211_IFTYPE_ADHOC:
1506 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1507 break;
1508 default:
1509 /* shouldn't happen */
1510 WARN_ON_ONCE(1);
1511 }
1512
1513 mutex_unlock(&mvm->mutex);
1514 }
1515
1516 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1517 struct ieee80211_vif *vif,
1518 struct cfg80211_scan_request *req)
1519 {
1520 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1521 int ret;
1522
1523 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1524 return -EINVAL;
1525
1526 mutex_lock(&mvm->mutex);
1527
1528 switch (mvm->scan_status) {
1529 case IWL_MVM_SCAN_SCHED:
1530 ret = iwl_mvm_sched_scan_stop(mvm);
1531 if (ret) {
1532 ret = -EBUSY;
1533 goto out;
1534 }
1535 break;
1536 case IWL_MVM_SCAN_NONE:
1537 break;
1538 default:
1539 ret = -EBUSY;
1540 goto out;
1541 }
1542
1543 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1544
1545 ret = iwl_mvm_scan_request(mvm, vif, req);
1546 if (ret)
1547 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1548 out:
1549 mutex_unlock(&mvm->mutex);
1550 /* make sure to flush the Rx handler before the next scan arrives */
1551 iwl_mvm_wait_for_async_handlers(mvm);
1552 return ret;
1553 }
1554
1555 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1556 struct ieee80211_vif *vif)
1557 {
1558 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1559
1560 mutex_lock(&mvm->mutex);
1561
1562 iwl_mvm_cancel_scan(mvm);
1563
1564 mutex_unlock(&mvm->mutex);
1565 }
1566
1567 static void
1568 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1569 struct ieee80211_sta *sta, u16 tids,
1570 int num_frames,
1571 enum ieee80211_frame_release_type reason,
1572 bool more_data)
1573 {
1574 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1575
1576 /* Called when we need to transmit (a) frame(s) from mac80211 */
1577
1578 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1579 tids, more_data, false);
1580 }
1581
1582 static void
1583 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1584 struct ieee80211_sta *sta, u16 tids,
1585 int num_frames,
1586 enum ieee80211_frame_release_type reason,
1587 bool more_data)
1588 {
1589 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1590
1591 /* Called when we need to transmit (a) frame(s) from agg queue */
1592
1593 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1594 tids, more_data, true);
1595 }
1596
1597 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1598 struct ieee80211_vif *vif,
1599 enum sta_notify_cmd cmd,
1600 struct ieee80211_sta *sta)
1601 {
1602 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1603 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1604 int tid;
1605
1606 switch (cmd) {
1607 case STA_NOTIFY_SLEEP:
1608 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1609 ieee80211_sta_block_awake(hw, sta, true);
1610 spin_lock_bh(&mvmsta->lock);
1611 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1612 struct iwl_mvm_tid_data *tid_data;
1613
1614 tid_data = &mvmsta->tid_data[tid];
1615 if (tid_data->state != IWL_AGG_ON &&
1616 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1617 continue;
1618 if (iwl_mvm_tid_queued(tid_data) == 0)
1619 continue;
1620 ieee80211_sta_set_buffered(sta, tid, true);
1621 }
1622 spin_unlock_bh(&mvmsta->lock);
1623 /*
1624 * The fw updates the STA to be asleep. Tx packets on the Tx
1625 * queues to this station will not be transmitted. The fw will
1626 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1627 */
1628 break;
1629 case STA_NOTIFY_AWAKE:
1630 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1631 break;
1632 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1633 break;
1634 default:
1635 break;
1636 }
1637 }
1638
1639 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1640 struct ieee80211_vif *vif,
1641 struct ieee80211_sta *sta)
1642 {
1643 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1644 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1645
1646 /*
1647 * This is called before mac80211 does RCU synchronisation,
1648 * so here we already invalidate our internal RCU-protected
1649 * station pointer. The rest of the code will thus no longer
1650 * be able to find the station this way, and we don't rely
1651 * on further RCU synchronisation after the sta_state()
1652 * callback deleted the station.
1653 */
1654 mutex_lock(&mvm->mutex);
1655 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1656 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1657 ERR_PTR(-ENOENT));
1658 mutex_unlock(&mvm->mutex);
1659 }
1660
1661 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1662 struct ieee80211_vif *vif,
1663 struct ieee80211_sta *sta,
1664 enum ieee80211_sta_state old_state,
1665 enum ieee80211_sta_state new_state)
1666 {
1667 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1668 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1669 int ret;
1670
1671 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1672 sta->addr, old_state, new_state);
1673
1674 /* this would be a mac80211 bug ... but don't crash */
1675 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1676 return -EINVAL;
1677
1678 /* if a STA is being removed, reuse its ID */
1679 flush_work(&mvm->sta_drained_wk);
1680
1681 mutex_lock(&mvm->mutex);
1682 if (old_state == IEEE80211_STA_NOTEXIST &&
1683 new_state == IEEE80211_STA_NONE) {
1684 /*
1685 * Firmware bug - it'll crash if the beacon interval is less
1686 * than 16. We can't avoid connecting at all, so refuse the
1687 * station state change, this will cause mac80211 to abandon
1688 * attempts to connect to this AP, and eventually wpa_s will
1689 * blacklist the AP...
1690 */
1691 if (vif->type == NL80211_IFTYPE_STATION &&
1692 vif->bss_conf.beacon_int < 16) {
1693 IWL_ERR(mvm,
1694 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1695 sta->addr, vif->bss_conf.beacon_int);
1696 ret = -EINVAL;
1697 goto out_unlock;
1698 }
1699 ret = iwl_mvm_add_sta(mvm, vif, sta);
1700 } else if (old_state == IEEE80211_STA_NONE &&
1701 new_state == IEEE80211_STA_AUTH) {
1702 /*
1703 * EBS may be disabled due to previous failures reported by FW.
1704 * Reset EBS status here assuming environment has been changed.
1705 */
1706 mvm->last_ebs_successful = true;
1707 ret = 0;
1708 } else if (old_state == IEEE80211_STA_AUTH &&
1709 new_state == IEEE80211_STA_ASSOC) {
1710 ret = iwl_mvm_update_sta(mvm, vif, sta);
1711 if (ret == 0)
1712 iwl_mvm_rs_rate_init(mvm, sta,
1713 mvmvif->phy_ctxt->channel->band,
1714 true);
1715 } else if (old_state == IEEE80211_STA_ASSOC &&
1716 new_state == IEEE80211_STA_AUTHORIZED) {
1717 /* enable beacon filtering */
1718 if (vif->bss_conf.dtim_period)
1719 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif,
1720 CMD_SYNC));
1721 ret = 0;
1722 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1723 new_state == IEEE80211_STA_ASSOC) {
1724 /* disable beacon filtering */
1725 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC));
1726 ret = 0;
1727 } else if (old_state == IEEE80211_STA_ASSOC &&
1728 new_state == IEEE80211_STA_AUTH) {
1729 ret = 0;
1730 } else if (old_state == IEEE80211_STA_AUTH &&
1731 new_state == IEEE80211_STA_NONE) {
1732 ret = 0;
1733 } else if (old_state == IEEE80211_STA_NONE &&
1734 new_state == IEEE80211_STA_NOTEXIST) {
1735 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1736 } else {
1737 ret = -EIO;
1738 }
1739 out_unlock:
1740 mutex_unlock(&mvm->mutex);
1741
1742 return ret;
1743 }
1744
1745 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1746 {
1747 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1748
1749 mvm->rts_threshold = value;
1750
1751 return 0;
1752 }
1753
1754 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1755 struct ieee80211_vif *vif,
1756 struct ieee80211_sta *sta, u32 changed)
1757 {
1758 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1759
1760 if (vif->type == NL80211_IFTYPE_STATION &&
1761 changed & IEEE80211_RC_NSS_CHANGED)
1762 iwl_mvm_sf_update(mvm, vif, false);
1763 }
1764
1765 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1766 struct ieee80211_vif *vif, u16 ac,
1767 const struct ieee80211_tx_queue_params *params)
1768 {
1769 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1770 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1771
1772 mvmvif->queue_params[ac] = *params;
1773
1774 /*
1775 * No need to update right away, we'll get BSS_CHANGED_QOS
1776 * The exception is P2P_DEVICE interface which needs immediate update.
1777 */
1778 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1779 int ret;
1780
1781 mutex_lock(&mvm->mutex);
1782 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
1783 mutex_unlock(&mvm->mutex);
1784 return ret;
1785 }
1786 return 0;
1787 }
1788
1789 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1790 struct ieee80211_vif *vif)
1791 {
1792 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1793 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1794 200 + vif->bss_conf.beacon_int);
1795 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1796 100 + vif->bss_conf.beacon_int);
1797
1798 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1799 return;
1800
1801 mutex_lock(&mvm->mutex);
1802 /* Try really hard to protect the session and hear a beacon */
1803 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1804 mutex_unlock(&mvm->mutex);
1805 }
1806
1807 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1808 struct ieee80211_vif *vif,
1809 struct cfg80211_sched_scan_request *req,
1810 struct ieee80211_sched_scan_ies *ies)
1811 {
1812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1813 int ret;
1814
1815 mutex_lock(&mvm->mutex);
1816
1817 switch (mvm->scan_status) {
1818 case IWL_MVM_SCAN_OS:
1819 IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n");
1820 ret = iwl_mvm_cancel_scan(mvm);
1821 if (ret) {
1822 ret = -EBUSY;
1823 goto out;
1824 }
1825
1826 /*
1827 * iwl_mvm_rx_scan_complete() will be called soon but will
1828 * not reset the scan status as it won't be IWL_MVM_SCAN_OS
1829 * any more since we queue the next scan immediately (below).
1830 * We make sure it is called before the next scan starts by
1831 * flushing the async-handlers work.
1832 */
1833 break;
1834 case IWL_MVM_SCAN_NONE:
1835 break;
1836 default:
1837 ret = -EBUSY;
1838 goto out;
1839 }
1840
1841 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1842
1843 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1844 if (ret)
1845 goto err;
1846
1847 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1848 if (ret)
1849 goto err;
1850
1851 ret = iwl_mvm_sched_scan_start(mvm, req);
1852 if (!ret)
1853 goto out;
1854 err:
1855 mvm->scan_status = IWL_MVM_SCAN_NONE;
1856 out:
1857 mutex_unlock(&mvm->mutex);
1858 /* make sure to flush the Rx handler before the next scan arrives */
1859 iwl_mvm_wait_for_async_handlers(mvm);
1860 return ret;
1861 }
1862
1863 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1864 struct ieee80211_vif *vif)
1865 {
1866 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1867 int ret;
1868
1869 mutex_lock(&mvm->mutex);
1870 ret = iwl_mvm_sched_scan_stop(mvm);
1871 mutex_unlock(&mvm->mutex);
1872 iwl_mvm_wait_for_async_handlers(mvm);
1873
1874 return ret;
1875 }
1876
1877 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1878 enum set_key_cmd cmd,
1879 struct ieee80211_vif *vif,
1880 struct ieee80211_sta *sta,
1881 struct ieee80211_key_conf *key)
1882 {
1883 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1884 int ret;
1885
1886 if (iwlwifi_mod_params.sw_crypto) {
1887 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1888 return -EOPNOTSUPP;
1889 }
1890
1891 switch (key->cipher) {
1892 case WLAN_CIPHER_SUITE_TKIP:
1893 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1894 /* fall-through */
1895 case WLAN_CIPHER_SUITE_CCMP:
1896 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1897 break;
1898 case WLAN_CIPHER_SUITE_AES_CMAC:
1899 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1900 break;
1901 case WLAN_CIPHER_SUITE_WEP40:
1902 case WLAN_CIPHER_SUITE_WEP104:
1903 /*
1904 * Support for TX only, at least for now, so accept
1905 * the key and do nothing else. Then mac80211 will
1906 * pass it for TX but we don't have to use it for RX.
1907 */
1908 return 0;
1909 default:
1910 /* currently FW supports only one optional cipher scheme */
1911 if (hw->n_cipher_schemes &&
1912 hw->cipher_schemes->cipher == key->cipher)
1913 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1914 else
1915 return -EOPNOTSUPP;
1916 }
1917
1918 mutex_lock(&mvm->mutex);
1919
1920 switch (cmd) {
1921 case SET_KEY:
1922 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1923 vif->type == NL80211_IFTYPE_AP) && !sta) {
1924 /*
1925 * GTK on AP interface is a TX-only key, return 0;
1926 * on IBSS they're per-station and because we're lazy
1927 * we don't support them for RX, so do the same.
1928 */
1929 ret = 0;
1930 key->hw_key_idx = STA_KEY_IDX_INVALID;
1931 break;
1932 }
1933
1934 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1935 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1936 if (ret) {
1937 IWL_WARN(mvm, "set key failed\n");
1938 /*
1939 * can't add key for RX, but we don't need it
1940 * in the device for TX so still return 0
1941 */
1942 key->hw_key_idx = STA_KEY_IDX_INVALID;
1943 ret = 0;
1944 }
1945
1946 break;
1947 case DISABLE_KEY:
1948 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1949 ret = 0;
1950 break;
1951 }
1952
1953 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1954 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1955 break;
1956 default:
1957 ret = -EINVAL;
1958 }
1959
1960 mutex_unlock(&mvm->mutex);
1961 return ret;
1962 }
1963
1964 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1965 struct ieee80211_vif *vif,
1966 struct ieee80211_key_conf *keyconf,
1967 struct ieee80211_sta *sta,
1968 u32 iv32, u16 *phase1key)
1969 {
1970 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1971
1972 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1973 return;
1974
1975 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
1976 }
1977
1978
1979 static int iwl_mvm_roc(struct ieee80211_hw *hw,
1980 struct ieee80211_vif *vif,
1981 struct ieee80211_channel *channel,
1982 int duration,
1983 enum ieee80211_roc_type type)
1984 {
1985 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1986 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1987 struct cfg80211_chan_def chandef;
1988 struct iwl_mvm_phy_ctxt *phy_ctxt;
1989 int ret, i;
1990
1991 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
1992 duration, type);
1993
1994 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
1995 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
1996 return -EINVAL;
1997 }
1998
1999 mutex_lock(&mvm->mutex);
2000
2001 for (i = 0; i < NUM_PHY_CTX; i++) {
2002 phy_ctxt = &mvm->phy_ctxts[i];
2003 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2004 continue;
2005
2006 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2007 /*
2008 * Unbind the P2P_DEVICE from the current PHY context,
2009 * and if the PHY context is not used remove it.
2010 */
2011 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2012 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2013 goto out_unlock;
2014
2015 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2016
2017 /* Bind the P2P_DEVICE to the current PHY Context */
2018 mvmvif->phy_ctxt = phy_ctxt;
2019
2020 ret = iwl_mvm_binding_add_vif(mvm, vif);
2021 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2022 goto out_unlock;
2023
2024 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2025 goto schedule_time_event;
2026 }
2027 }
2028
2029 /* Need to update the PHY context only if the ROC channel changed */
2030 if (channel == mvmvif->phy_ctxt->channel)
2031 goto schedule_time_event;
2032
2033 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2034
2035 /*
2036 * Change the PHY context configuration as it is currently referenced
2037 * only by the P2P Device MAC
2038 */
2039 if (mvmvif->phy_ctxt->ref == 1) {
2040 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2041 &chandef, 1, 1);
2042 if (ret)
2043 goto out_unlock;
2044 } else {
2045 /*
2046 * The PHY context is shared with other MACs. Need to remove the
2047 * P2P Device from the binding, allocate an new PHY context and
2048 * create a new binding
2049 */
2050 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2051 if (!phy_ctxt) {
2052 ret = -ENOSPC;
2053 goto out_unlock;
2054 }
2055
2056 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2057 1, 1);
2058 if (ret) {
2059 IWL_ERR(mvm, "Failed to change PHY context\n");
2060 goto out_unlock;
2061 }
2062
2063 /* Unbind the P2P_DEVICE from the current PHY context */
2064 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2065 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2066 goto out_unlock;
2067
2068 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2069
2070 /* Bind the P2P_DEVICE to the new allocated PHY context */
2071 mvmvif->phy_ctxt = phy_ctxt;
2072
2073 ret = iwl_mvm_binding_add_vif(mvm, vif);
2074 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2075 goto out_unlock;
2076
2077 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2078 }
2079
2080 schedule_time_event:
2081 /* Schedule the time events */
2082 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2083
2084 out_unlock:
2085 mutex_unlock(&mvm->mutex);
2086 IWL_DEBUG_MAC80211(mvm, "leave\n");
2087 return ret;
2088 }
2089
2090 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2091 {
2092 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2093
2094 IWL_DEBUG_MAC80211(mvm, "enter\n");
2095
2096 mutex_lock(&mvm->mutex);
2097 iwl_mvm_stop_p2p_roc(mvm);
2098 mutex_unlock(&mvm->mutex);
2099
2100 IWL_DEBUG_MAC80211(mvm, "leave\n");
2101 return 0;
2102 }
2103
2104 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2105 struct ieee80211_chanctx_conf *ctx)
2106 {
2107 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2108 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2109 struct iwl_mvm_phy_ctxt *phy_ctxt;
2110 int ret;
2111
2112 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2113
2114 mutex_lock(&mvm->mutex);
2115 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2116 if (!phy_ctxt) {
2117 ret = -ENOSPC;
2118 goto out;
2119 }
2120
2121 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2122 ctx->rx_chains_static,
2123 ctx->rx_chains_dynamic);
2124 if (ret) {
2125 IWL_ERR(mvm, "Failed to add PHY context\n");
2126 goto out;
2127 }
2128
2129 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2130 *phy_ctxt_id = phy_ctxt->id;
2131 out:
2132 mutex_unlock(&mvm->mutex);
2133 return ret;
2134 }
2135
2136 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2137 struct ieee80211_chanctx_conf *ctx)
2138 {
2139 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2140 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2141 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2142
2143 mutex_lock(&mvm->mutex);
2144 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2145 mutex_unlock(&mvm->mutex);
2146 }
2147
2148 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2149 struct ieee80211_chanctx_conf *ctx,
2150 u32 changed)
2151 {
2152 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2153 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2154 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2155
2156 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2157 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2158 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2159 IEEE80211_CHANCTX_CHANGE_RADAR |
2160 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2161 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2162 phy_ctxt->ref, changed))
2163 return;
2164
2165 mutex_lock(&mvm->mutex);
2166 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2167 ctx->rx_chains_static,
2168 ctx->rx_chains_dynamic);
2169 iwl_mvm_bt_coex_vif_change(mvm);
2170 mutex_unlock(&mvm->mutex);
2171 }
2172
2173 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2174 struct ieee80211_vif *vif,
2175 struct ieee80211_chanctx_conf *ctx)
2176 {
2177 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2178 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2179 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2180 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2181 int ret;
2182
2183 mutex_lock(&mvm->mutex);
2184
2185 mvmvif->phy_ctxt = phy_ctxt;
2186
2187 switch (vif->type) {
2188 case NL80211_IFTYPE_AP:
2189 case NL80211_IFTYPE_ADHOC:
2190 /*
2191 * The AP binding flow is handled as part of the start_ap flow
2192 * (in bss_info_changed), similarly for IBSS.
2193 */
2194 ret = 0;
2195 goto out_unlock;
2196 case NL80211_IFTYPE_STATION:
2197 case NL80211_IFTYPE_MONITOR:
2198 break;
2199 default:
2200 ret = -EINVAL;
2201 goto out_unlock;
2202 }
2203
2204 ret = iwl_mvm_binding_add_vif(mvm, vif);
2205 if (ret)
2206 goto out_unlock;
2207
2208 /*
2209 * Power state must be updated before quotas,
2210 * otherwise fw will complain.
2211 */
2212 iwl_mvm_power_update_mac(mvm, vif);
2213
2214 /* Setting the quota at this stage is only required for monitor
2215 * interfaces. For the other types, the bss_info changed flow
2216 * will handle quota settings.
2217 */
2218 if (vif->type == NL80211_IFTYPE_MONITOR) {
2219 mvmvif->monitor_active = true;
2220 ret = iwl_mvm_update_quotas(mvm, vif);
2221 if (ret)
2222 goto out_remove_binding;
2223 }
2224
2225 goto out_unlock;
2226
2227 out_remove_binding:
2228 iwl_mvm_binding_remove_vif(mvm, vif);
2229 iwl_mvm_power_update_mac(mvm, vif);
2230 out_unlock:
2231 mutex_unlock(&mvm->mutex);
2232 if (ret)
2233 mvmvif->phy_ctxt = NULL;
2234 return ret;
2235 }
2236
2237 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2238 struct ieee80211_vif *vif,
2239 struct ieee80211_chanctx_conf *ctx)
2240 {
2241 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2242 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2243
2244 mutex_lock(&mvm->mutex);
2245
2246 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2247
2248 switch (vif->type) {
2249 case NL80211_IFTYPE_AP:
2250 case NL80211_IFTYPE_ADHOC:
2251 goto out_unlock;
2252 case NL80211_IFTYPE_MONITOR:
2253 mvmvif->monitor_active = false;
2254 iwl_mvm_update_quotas(mvm, NULL);
2255 break;
2256 default:
2257 break;
2258 }
2259
2260 iwl_mvm_binding_remove_vif(mvm, vif);
2261 iwl_mvm_power_update_mac(mvm, vif);
2262
2263 out_unlock:
2264 mvmvif->phy_ctxt = NULL;
2265 mutex_unlock(&mvm->mutex);
2266 }
2267
2268 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2269 struct ieee80211_sta *sta,
2270 bool set)
2271 {
2272 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2273 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2274
2275 if (!mvm_sta || !mvm_sta->vif) {
2276 IWL_ERR(mvm, "Station is not associated to a vif\n");
2277 return -EINVAL;
2278 }
2279
2280 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2281 }
2282
2283 #ifdef CONFIG_NL80211_TESTMODE
2284 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2285 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2286 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2287 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2288 };
2289
2290 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2291 struct ieee80211_vif *vif,
2292 void *data, int len)
2293 {
2294 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2295 int err;
2296 u32 noa_duration;
2297
2298 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2299 if (err)
2300 return err;
2301
2302 if (!tb[IWL_MVM_TM_ATTR_CMD])
2303 return -EINVAL;
2304
2305 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2306 case IWL_MVM_TM_CMD_SET_NOA:
2307 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2308 !vif->bss_conf.enable_beacon ||
2309 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2310 return -EINVAL;
2311
2312 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2313 if (noa_duration >= vif->bss_conf.beacon_int)
2314 return -EINVAL;
2315
2316 mvm->noa_duration = noa_duration;
2317 mvm->noa_vif = vif;
2318
2319 return iwl_mvm_update_quotas(mvm, NULL);
2320 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2321 /* must be associated client vif - ignore authorized */
2322 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2323 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2324 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2325 return -EINVAL;
2326
2327 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2328 return iwl_mvm_enable_beacon_filter(mvm, vif,
2329 CMD_SYNC);
2330 return iwl_mvm_disable_beacon_filter(mvm, vif, CMD_SYNC);
2331 }
2332
2333 return -EOPNOTSUPP;
2334 }
2335
2336 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2337 struct ieee80211_vif *vif,
2338 void *data, int len)
2339 {
2340 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2341 int err;
2342
2343 mutex_lock(&mvm->mutex);
2344 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2345 mutex_unlock(&mvm->mutex);
2346
2347 return err;
2348 }
2349 #endif
2350
2351 const struct ieee80211_ops iwl_mvm_hw_ops = {
2352 .tx = iwl_mvm_mac_tx,
2353 .ampdu_action = iwl_mvm_mac_ampdu_action,
2354 .start = iwl_mvm_mac_start,
2355 .restart_complete = iwl_mvm_mac_restart_complete,
2356 .stop = iwl_mvm_mac_stop,
2357 .add_interface = iwl_mvm_mac_add_interface,
2358 .remove_interface = iwl_mvm_mac_remove_interface,
2359 .config = iwl_mvm_mac_config,
2360 .prepare_multicast = iwl_mvm_prepare_multicast,
2361 .configure_filter = iwl_mvm_configure_filter,
2362 .bss_info_changed = iwl_mvm_bss_info_changed,
2363 .hw_scan = iwl_mvm_mac_hw_scan,
2364 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2365 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2366 .sta_state = iwl_mvm_mac_sta_state,
2367 .sta_notify = iwl_mvm_mac_sta_notify,
2368 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2369 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2370 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2371 .sta_rc_update = iwl_mvm_sta_rc_update,
2372 .conf_tx = iwl_mvm_mac_conf_tx,
2373 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2374 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2375 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2376 .set_key = iwl_mvm_mac_set_key,
2377 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2378 .remain_on_channel = iwl_mvm_roc,
2379 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2380 .add_chanctx = iwl_mvm_add_chanctx,
2381 .remove_chanctx = iwl_mvm_remove_chanctx,
2382 .change_chanctx = iwl_mvm_change_chanctx,
2383 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2384 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2385
2386 .start_ap = iwl_mvm_start_ap_ibss,
2387 .stop_ap = iwl_mvm_stop_ap_ibss,
2388 .join_ibss = iwl_mvm_start_ap_ibss,
2389 .leave_ibss = iwl_mvm_stop_ap_ibss,
2390
2391 .set_tim = iwl_mvm_set_tim,
2392
2393 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2394
2395 #ifdef CONFIG_PM_SLEEP
2396 /* look at d3.c */
2397 .suspend = iwl_mvm_suspend,
2398 .resume = iwl_mvm_resume,
2399 .set_wakeup = iwl_mvm_set_wakeup,
2400 .set_rekey_data = iwl_mvm_set_rekey_data,
2401 #if IS_ENABLED(CONFIG_IPV6)
2402 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2403 #endif
2404 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2405 #endif
2406 };
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