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