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iwlwifi: update the 7265 series HW IDs
[mirror_ubuntu-jammy-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_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 (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
299 IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
300 !iwlwifi_mod_params.uapsd_disable) {
301 hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
302 hw->uapsd_queues = IWL_UAPSD_AC_INFO;
303 hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
304 }
305
306 hw->sta_data_size = sizeof(struct iwl_mvm_sta);
307 hw->vif_data_size = sizeof(struct iwl_mvm_vif);
308 hw->chanctx_data_size = sizeof(u16);
309
310 hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
311 BIT(NL80211_IFTYPE_P2P_CLIENT) |
312 BIT(NL80211_IFTYPE_AP) |
313 BIT(NL80211_IFTYPE_P2P_GO) |
314 BIT(NL80211_IFTYPE_P2P_DEVICE) |
315 BIT(NL80211_IFTYPE_ADHOC);
316
317 hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
318 hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
319 REGULATORY_DISABLE_BEACON_HINTS;
320
321 if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
322 hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
323
324 if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
325 hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
326
327 hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
328 hw->wiphy->n_iface_combinations =
329 ARRAY_SIZE(iwl_mvm_iface_combinations);
330
331 hw->wiphy->max_remain_on_channel_duration = 10000;
332 hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
333
334 /* Extract MAC address */
335 memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
336 hw->wiphy->addresses = mvm->addresses;
337 hw->wiphy->n_addresses = 1;
338
339 /* Extract additional MAC addresses if available */
340 num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
341 min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
342
343 for (i = 1; i < num_mac; i++) {
344 memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
345 ETH_ALEN);
346 mvm->addresses[i].addr[5]++;
347 hw->wiphy->n_addresses++;
348 }
349
350 iwl_mvm_reset_phy_ctxts(mvm);
351
352 hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
353
354 hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
355
356 if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
357 hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
358 &mvm->nvm_data->bands[IEEE80211_BAND_2GHZ];
359 if (mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels)
360 hw->wiphy->bands[IEEE80211_BAND_5GHZ] =
361 &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ];
362
363 hw->wiphy->hw_version = mvm->trans->hw_id;
364
365 if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
366 hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
367 else
368 hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
369
370 hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
371 hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
372 hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
373 /* we create the 802.11 header and zero length SSID IE. */
374 hw->wiphy->max_sched_scan_ie_len = SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
375
376 hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
377 NL80211_FEATURE_P2P_GO_OPPPS;
378
379 mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
380
381 /* currently FW API supports only one optional cipher scheme */
382 if (mvm->fw->cs[0].cipher) {
383 mvm->hw->n_cipher_schemes = 1;
384 mvm->hw->cipher_schemes = &mvm->fw->cs[0];
385 }
386
387 #ifdef CONFIG_PM_SLEEP
388 if (iwl_mvm_is_d0i3_supported(mvm) &&
389 device_can_wakeup(mvm->trans->dev)) {
390 mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
391 hw->wiphy->wowlan = &mvm->wowlan;
392 } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
393 mvm->trans->ops->d3_suspend &&
394 mvm->trans->ops->d3_resume &&
395 device_can_wakeup(mvm->trans->dev)) {
396 mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
397 WIPHY_WOWLAN_DISCONNECT |
398 WIPHY_WOWLAN_EAP_IDENTITY_REQ |
399 WIPHY_WOWLAN_RFKILL_RELEASE;
400 if (!iwlwifi_mod_params.sw_crypto)
401 mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
402 WIPHY_WOWLAN_GTK_REKEY_FAILURE |
403 WIPHY_WOWLAN_4WAY_HANDSHAKE;
404
405 mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
406 mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
407 mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
408 mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
409 hw->wiphy->wowlan = &mvm->wowlan;
410 }
411 #endif
412
413 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
414 /* assign default bcast filtering configuration */
415 mvm->bcast_filters = iwl_mvm_default_bcast_filters;
416 #endif
417
418 ret = iwl_mvm_leds_init(mvm);
419 if (ret)
420 return ret;
421
422 ret = ieee80211_register_hw(mvm->hw);
423 if (ret)
424 iwl_mvm_leds_exit(mvm);
425
426 return ret;
427 }
428
429 static bool iwl_mvm_defer_tx(struct iwl_mvm *mvm,
430 struct ieee80211_sta *sta,
431 struct sk_buff *skb)
432 {
433 struct iwl_mvm_sta *mvmsta;
434 bool defer = false;
435
436 /*
437 * double check the IN_D0I3 flag both before and after
438 * taking the spinlock, in order to prevent taking
439 * the spinlock when not needed.
440 */
441 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status)))
442 return false;
443
444 spin_lock(&mvm->d0i3_tx_lock);
445 /*
446 * testing the flag again ensures the skb dequeue
447 * loop (on d0i3 exit) hasn't run yet.
448 */
449 if (!test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status))
450 goto out;
451
452 mvmsta = iwl_mvm_sta_from_mac80211(sta);
453 if (mvmsta->sta_id == IWL_MVM_STATION_COUNT ||
454 mvmsta->sta_id != mvm->d0i3_ap_sta_id)
455 goto out;
456
457 __skb_queue_tail(&mvm->d0i3_tx, skb);
458 ieee80211_stop_queues(mvm->hw);
459
460 /* trigger wakeup */
461 iwl_mvm_ref(mvm, IWL_MVM_REF_TX);
462 iwl_mvm_unref(mvm, IWL_MVM_REF_TX);
463
464 defer = true;
465 out:
466 spin_unlock(&mvm->d0i3_tx_lock);
467 return defer;
468 }
469
470 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
471 struct ieee80211_tx_control *control,
472 struct sk_buff *skb)
473 {
474 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
475 struct ieee80211_sta *sta = control->sta;
476 struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
477 struct ieee80211_hdr *hdr = (void *)skb->data;
478
479 if (iwl_mvm_is_radio_killed(mvm)) {
480 IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
481 goto drop;
482 }
483
484 if (IEEE80211_SKB_CB(skb)->hw_queue == IWL_MVM_OFFCHANNEL_QUEUE &&
485 !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status))
486 goto drop;
487
488 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
489 if (unlikely(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER &&
490 ieee80211_is_mgmt(hdr->frame_control) &&
491 !ieee80211_is_deauth(hdr->frame_control) &&
492 !ieee80211_is_disassoc(hdr->frame_control) &&
493 !ieee80211_is_action(hdr->frame_control)))
494 sta = NULL;
495
496 if (sta) {
497 if (iwl_mvm_defer_tx(mvm, sta, skb))
498 return;
499 if (iwl_mvm_tx_skb(mvm, skb, sta))
500 goto drop;
501 return;
502 }
503
504 if (iwl_mvm_tx_skb_non_sta(mvm, skb))
505 goto drop;
506 return;
507 drop:
508 ieee80211_free_txskb(hw, skb);
509 }
510
511 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg *cfg)
512 {
513 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_RXAGG)
514 return false;
515 return true;
516 }
517
518 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg *cfg)
519 {
520 if (iwlwifi_mod_params.disable_11n & IWL_DISABLE_HT_TXAGG)
521 return false;
522 if (iwlwifi_mod_params.disable_11n & IWL_ENABLE_HT_TXAGG)
523 return true;
524
525 /* enabled by default */
526 return true;
527 }
528
529 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
530 struct ieee80211_vif *vif,
531 enum ieee80211_ampdu_mlme_action action,
532 struct ieee80211_sta *sta, u16 tid,
533 u16 *ssn, u8 buf_size)
534 {
535 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
536 int ret;
537 bool tx_agg_ref = false;
538
539 IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
540 sta->addr, tid, action);
541
542 if (!(mvm->nvm_data->sku_cap_11n_enable))
543 return -EACCES;
544
545 /* return from D0i3 before starting a new Tx aggregation */
546 switch (action) {
547 case IEEE80211_AMPDU_TX_START:
548 case IEEE80211_AMPDU_TX_STOP_CONT:
549 case IEEE80211_AMPDU_TX_STOP_FLUSH:
550 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
551 case IEEE80211_AMPDU_TX_OPERATIONAL:
552 iwl_mvm_ref(mvm, IWL_MVM_REF_TX_AGG);
553 tx_agg_ref = true;
554
555 /*
556 * for tx start, wait synchronously until D0i3 exit to
557 * get the correct sequence number for the tid.
558 * additionally, some other ampdu actions use direct
559 * target access, which is not handled automatically
560 * by the trans layer (unlike commands), so wait for
561 * d0i3 exit in these cases as well.
562 */
563 if (!wait_event_timeout(mvm->d0i3_exit_waitq,
564 !test_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status), HZ)) {
565 WARN_ON_ONCE(1);
566 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
567 return -EIO;
568 }
569 break;
570 default:
571 break;
572 }
573
574 mutex_lock(&mvm->mutex);
575
576 switch (action) {
577 case IEEE80211_AMPDU_RX_START:
578 if (!iwl_enable_rx_ampdu(mvm->cfg)) {
579 ret = -EINVAL;
580 break;
581 }
582 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true);
583 break;
584 case IEEE80211_AMPDU_RX_STOP:
585 ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false);
586 break;
587 case IEEE80211_AMPDU_TX_START:
588 if (!iwl_enable_tx_ampdu(mvm->cfg)) {
589 ret = -EINVAL;
590 break;
591 }
592 ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
593 break;
594 case IEEE80211_AMPDU_TX_STOP_CONT:
595 ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
596 break;
597 case IEEE80211_AMPDU_TX_STOP_FLUSH:
598 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
599 ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
600 break;
601 case IEEE80211_AMPDU_TX_OPERATIONAL:
602 ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid, buf_size);
603 break;
604 default:
605 WARN_ON_ONCE(1);
606 ret = -EINVAL;
607 break;
608 }
609 mutex_unlock(&mvm->mutex);
610
611 /*
612 * If the tid is marked as started, we won't use it for offloaded
613 * traffic on the next D0i3 entry. It's safe to unref.
614 */
615 if (tx_agg_ref)
616 iwl_mvm_unref(mvm, IWL_MVM_REF_TX_AGG);
617
618 return ret;
619 }
620
621 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
622 struct ieee80211_vif *vif)
623 {
624 struct iwl_mvm *mvm = data;
625 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
626
627 mvmvif->uploaded = false;
628 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
629
630 /* does this make sense at all? */
631 mvmvif->color++;
632
633 spin_lock_bh(&mvm->time_event_lock);
634 iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
635 spin_unlock_bh(&mvm->time_event_lock);
636
637 mvmvif->phy_ctxt = NULL;
638 }
639
640 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
641 {
642 #ifdef CONFIG_IWLWIFI_DEBUGFS
643 static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
644
645 iwl_mvm_fw_error_dump(mvm);
646
647 /* notify the userspace about the error we had */
648 kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
649 #endif
650
651 iwl_trans_stop_device(mvm->trans);
652
653 mvm->scan_status = IWL_MVM_SCAN_NONE;
654
655 /* just in case one was running */
656 ieee80211_remain_on_channel_expired(mvm->hw);
657
658 ieee80211_iterate_active_interfaces_atomic(
659 mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
660 iwl_mvm_cleanup_iterator, mvm);
661
662 mvm->p2p_device_vif = NULL;
663 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
664
665 iwl_mvm_reset_phy_ctxts(mvm);
666 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
667 memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
668
669 ieee80211_wake_queues(mvm->hw);
670
671 /* cleanup all stale references (scan, roc), but keep the
672 * ucode_down ref until reconfig is complete */
673 iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
674
675 mvm->vif_count = 0;
676 mvm->rx_ba_sessions = 0;
677 }
678
679 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
680 {
681 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
682 int ret;
683
684 mutex_lock(&mvm->mutex);
685
686 /* Clean up some internal and mac80211 state on restart */
687 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
688 iwl_mvm_restart_cleanup(mvm);
689
690 ret = iwl_mvm_up(mvm);
691 mutex_unlock(&mvm->mutex);
692
693 return ret;
694 }
695
696 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
697 {
698 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
699 int ret;
700
701 mutex_lock(&mvm->mutex);
702
703 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
704 iwl_mvm_d0i3_enable_tx(mvm, NULL);
705 ret = iwl_mvm_update_quotas(mvm, NULL);
706 if (ret)
707 IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
708 ret);
709
710 /* allow transport/FW low power modes */
711 iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
712
713 mutex_unlock(&mvm->mutex);
714 }
715
716 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
717 {
718 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
719
720 flush_work(&mvm->d0i3_exit_work);
721 flush_work(&mvm->async_handlers_wk);
722
723 mutex_lock(&mvm->mutex);
724
725 /* disallow low power states when the FW is down */
726 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
727
728 /* async_handlers_wk is now blocked */
729
730 /*
731 * The work item could be running or queued if the
732 * ROC time event stops just as we get here.
733 */
734 cancel_work_sync(&mvm->roc_done_wk);
735
736 iwl_trans_stop_device(mvm->trans);
737
738 iwl_mvm_async_handlers_purge(mvm);
739 /* async_handlers_list is empty and will stay empty: HW is stopped */
740
741 /* the fw is stopped, the aux sta is dead: clean up driver state */
742 iwl_mvm_dealloc_int_sta(mvm, &mvm->aux_sta);
743
744 mutex_unlock(&mvm->mutex);
745
746 /*
747 * The worker might have been waiting for the mutex, let it run and
748 * discover that its list is now empty.
749 */
750 cancel_work_sync(&mvm->async_handlers_wk);
751 }
752
753 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
754 {
755 u16 i;
756
757 lockdep_assert_held(&mvm->mutex);
758
759 for (i = 0; i < NUM_PHY_CTX; i++)
760 if (!mvm->phy_ctxts[i].ref)
761 return &mvm->phy_ctxts[i];
762
763 IWL_ERR(mvm, "No available PHY context\n");
764 return NULL;
765 }
766
767 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
768 s8 tx_power)
769 {
770 /* FW is in charge of regulatory enforcement */
771 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd = {
772 .mac_context_id = iwl_mvm_vif_from_mac80211(vif)->id,
773 .pwr_restriction = cpu_to_le16(tx_power),
774 };
775
776 return iwl_mvm_send_cmd_pdu(mvm, REDUCE_TX_POWER_CMD, 0,
777 sizeof(reduce_txpwr_cmd),
778 &reduce_txpwr_cmd);
779 }
780
781 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
782 struct ieee80211_vif *vif)
783 {
784 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
785 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
786 int ret;
787
788 /*
789 * Not much to do here. The stack will not allow interface
790 * types or combinations that we didn't advertise, so we
791 * don't really have to check the types.
792 */
793
794 mutex_lock(&mvm->mutex);
795
796 /* Allocate resources for the MAC context, and add it to the fw */
797 ret = iwl_mvm_mac_ctxt_init(mvm, vif);
798 if (ret)
799 goto out_unlock;
800
801 /* Counting number of interfaces is needed for legacy PM */
802 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
803 mvm->vif_count++;
804
805 /*
806 * The AP binding flow can be done only after the beacon
807 * template is configured (which happens only in the mac80211
808 * start_ap() flow), and adding the broadcast station can happen
809 * only after the binding.
810 * In addition, since modifying the MAC before adding a bcast
811 * station is not allowed by the FW, delay the adding of MAC context to
812 * the point where we can also add the bcast station.
813 * In short: there's not much we can do at this point, other than
814 * allocating resources :)
815 */
816 if (vif->type == NL80211_IFTYPE_AP ||
817 vif->type == NL80211_IFTYPE_ADHOC) {
818 u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
819 ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
820 qmask,
821 ieee80211_vif_type_p2p(vif));
822 if (ret) {
823 IWL_ERR(mvm, "Failed to allocate bcast sta\n");
824 goto out_release;
825 }
826
827 iwl_mvm_vif_dbgfs_register(mvm, vif);
828 goto out_unlock;
829 }
830
831 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
832 if (ret)
833 goto out_release;
834
835 ret = iwl_mvm_power_update_mac(mvm);
836 if (ret)
837 goto out_release;
838
839 /* beacon filtering */
840 ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
841 if (ret)
842 goto out_remove_mac;
843
844 if (!mvm->bf_allowed_vif &&
845 vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
846 mvm->bf_allowed_vif = mvmvif;
847 vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
848 IEEE80211_VIF_SUPPORTS_CQM_RSSI;
849 }
850
851 /*
852 * P2P_DEVICE interface does not have a channel context assigned to it,
853 * so a dedicated PHY context is allocated to it and the corresponding
854 * MAC context is bound to it at this stage.
855 */
856 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
857
858 mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
859 if (!mvmvif->phy_ctxt) {
860 ret = -ENOSPC;
861 goto out_free_bf;
862 }
863
864 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
865 ret = iwl_mvm_binding_add_vif(mvm, vif);
866 if (ret)
867 goto out_unref_phy;
868
869 ret = iwl_mvm_add_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
870 if (ret)
871 goto out_unbind;
872
873 /* Save a pointer to p2p device vif, so it can later be used to
874 * update the p2p device MAC when a GO is started/stopped */
875 mvm->p2p_device_vif = vif;
876 }
877
878 iwl_mvm_vif_dbgfs_register(mvm, vif);
879 goto out_unlock;
880
881 out_unbind:
882 iwl_mvm_binding_remove_vif(mvm, vif);
883 out_unref_phy:
884 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
885 out_free_bf:
886 if (mvm->bf_allowed_vif == mvmvif) {
887 mvm->bf_allowed_vif = NULL;
888 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
889 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
890 }
891 out_remove_mac:
892 mvmvif->phy_ctxt = NULL;
893 iwl_mvm_mac_ctxt_remove(mvm, vif);
894 out_release:
895 if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
896 mvm->vif_count--;
897
898 iwl_mvm_mac_ctxt_release(mvm, vif);
899 out_unlock:
900 mutex_unlock(&mvm->mutex);
901
902 return ret;
903 }
904
905 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
906 struct ieee80211_vif *vif)
907 {
908 u32 tfd_msk = 0, ac;
909
910 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
911 if (vif->hw_queue[ac] != IEEE80211_INVAL_HW_QUEUE)
912 tfd_msk |= BIT(vif->hw_queue[ac]);
913
914 if (vif->cab_queue != IEEE80211_INVAL_HW_QUEUE)
915 tfd_msk |= BIT(vif->cab_queue);
916
917 if (tfd_msk) {
918 mutex_lock(&mvm->mutex);
919 iwl_mvm_flush_tx_path(mvm, tfd_msk, true);
920 mutex_unlock(&mvm->mutex);
921 }
922
923 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
924 /*
925 * Flush the ROC worker which will flush the OFFCHANNEL queue.
926 * We assume here that all the packets sent to the OFFCHANNEL
927 * queue are sent in ROC session.
928 */
929 flush_work(&mvm->roc_done_wk);
930 } else {
931 /*
932 * By now, all the AC queues are empty. The AGG queues are
933 * empty too. We already got all the Tx responses for all the
934 * packets in the queues. The drain work can have been
935 * triggered. Flush it.
936 */
937 flush_work(&mvm->sta_drained_wk);
938 }
939 }
940
941 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
942 struct ieee80211_vif *vif)
943 {
944 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
945 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
946
947 iwl_mvm_prepare_mac_removal(mvm, vif);
948
949 mutex_lock(&mvm->mutex);
950
951 if (mvm->bf_allowed_vif == mvmvif) {
952 mvm->bf_allowed_vif = NULL;
953 vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
954 IEEE80211_VIF_SUPPORTS_CQM_RSSI);
955 }
956
957 iwl_mvm_vif_dbgfs_clean(mvm, vif);
958
959 /*
960 * For AP/GO interface, the tear down of the resources allocated to the
961 * interface is be handled as part of the stop_ap flow.
962 */
963 if (vif->type == NL80211_IFTYPE_AP ||
964 vif->type == NL80211_IFTYPE_ADHOC) {
965 #ifdef CONFIG_NL80211_TESTMODE
966 if (vif == mvm->noa_vif) {
967 mvm->noa_vif = NULL;
968 mvm->noa_duration = 0;
969 }
970 #endif
971 iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
972 goto out_release;
973 }
974
975 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
976 mvm->p2p_device_vif = NULL;
977 iwl_mvm_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
978 iwl_mvm_binding_remove_vif(mvm, vif);
979 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
980 mvmvif->phy_ctxt = NULL;
981 }
982
983 if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
984 mvm->vif_count--;
985
986 iwl_mvm_power_update_mac(mvm);
987 iwl_mvm_mac_ctxt_remove(mvm, vif);
988
989 out_release:
990 iwl_mvm_mac_ctxt_release(mvm, vif);
991 mutex_unlock(&mvm->mutex);
992 }
993
994 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
995 {
996 return 0;
997 }
998
999 struct iwl_mvm_mc_iter_data {
1000 struct iwl_mvm *mvm;
1001 int port_id;
1002 };
1003
1004 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1005 struct ieee80211_vif *vif)
1006 {
1007 struct iwl_mvm_mc_iter_data *data = _data;
1008 struct iwl_mvm *mvm = data->mvm;
1009 struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1010 int ret, len;
1011
1012 /* if we don't have free ports, mcast frames will be dropped */
1013 if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1014 return;
1015
1016 if (vif->type != NL80211_IFTYPE_STATION ||
1017 !vif->bss_conf.assoc)
1018 return;
1019
1020 cmd->port_id = data->port_id++;
1021 memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1022 len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1023
1024 ret = iwl_mvm_send_cmd_pdu(mvm, MCAST_FILTER_CMD, CMD_ASYNC, len, cmd);
1025 if (ret)
1026 IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1027 }
1028
1029 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1030 {
1031 struct iwl_mvm_mc_iter_data iter_data = {
1032 .mvm = mvm,
1033 };
1034
1035 lockdep_assert_held(&mvm->mutex);
1036
1037 if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1038 return;
1039
1040 ieee80211_iterate_active_interfaces_atomic(
1041 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1042 iwl_mvm_mc_iface_iterator, &iter_data);
1043 }
1044
1045 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1046 struct netdev_hw_addr_list *mc_list)
1047 {
1048 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1049 struct iwl_mcast_filter_cmd *cmd;
1050 struct netdev_hw_addr *addr;
1051 int addr_count = netdev_hw_addr_list_count(mc_list);
1052 bool pass_all = false;
1053 int len;
1054
1055 if (addr_count > MAX_MCAST_FILTERING_ADDRESSES) {
1056 pass_all = true;
1057 addr_count = 0;
1058 }
1059
1060 len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1061 cmd = kzalloc(len, GFP_ATOMIC);
1062 if (!cmd)
1063 return 0;
1064
1065 if (pass_all) {
1066 cmd->pass_all = 1;
1067 return (u64)(unsigned long)cmd;
1068 }
1069
1070 netdev_hw_addr_list_for_each(addr, mc_list) {
1071 IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1072 cmd->count, addr->addr);
1073 memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1074 addr->addr, ETH_ALEN);
1075 cmd->count++;
1076 }
1077
1078 return (u64)(unsigned long)cmd;
1079 }
1080
1081 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1082 unsigned int changed_flags,
1083 unsigned int *total_flags,
1084 u64 multicast)
1085 {
1086 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1087 struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1088
1089 mutex_lock(&mvm->mutex);
1090
1091 /* replace previous configuration */
1092 kfree(mvm->mcast_filter_cmd);
1093 mvm->mcast_filter_cmd = cmd;
1094
1095 if (!cmd)
1096 goto out;
1097
1098 iwl_mvm_recalc_multicast(mvm);
1099 out:
1100 mutex_unlock(&mvm->mutex);
1101 *total_flags = 0;
1102 }
1103
1104 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1105 struct iwl_bcast_iter_data {
1106 struct iwl_mvm *mvm;
1107 struct iwl_bcast_filter_cmd *cmd;
1108 u8 current_filter;
1109 };
1110
1111 static void
1112 iwl_mvm_set_bcast_filter(struct ieee80211_vif *vif,
1113 const struct iwl_fw_bcast_filter *in_filter,
1114 struct iwl_fw_bcast_filter *out_filter)
1115 {
1116 struct iwl_fw_bcast_filter_attr *attr;
1117 int i;
1118
1119 memcpy(out_filter, in_filter, sizeof(*out_filter));
1120
1121 for (i = 0; i < ARRAY_SIZE(out_filter->attrs); i++) {
1122 attr = &out_filter->attrs[i];
1123
1124 if (!attr->mask)
1125 break;
1126
1127 switch (attr->reserved1) {
1128 case cpu_to_le16(BC_FILTER_MAGIC_IP):
1129 if (vif->bss_conf.arp_addr_cnt != 1) {
1130 attr->mask = 0;
1131 continue;
1132 }
1133
1134 attr->val = vif->bss_conf.arp_addr_list[0];
1135 break;
1136 case cpu_to_le16(BC_FILTER_MAGIC_MAC):
1137 attr->val = *(__be32 *)&vif->addr[2];
1138 break;
1139 default:
1140 break;
1141 }
1142 attr->reserved1 = 0;
1143 out_filter->num_attrs++;
1144 }
1145 }
1146
1147 static void iwl_mvm_bcast_filter_iterator(void *_data, u8 *mac,
1148 struct ieee80211_vif *vif)
1149 {
1150 struct iwl_bcast_iter_data *data = _data;
1151 struct iwl_mvm *mvm = data->mvm;
1152 struct iwl_bcast_filter_cmd *cmd = data->cmd;
1153 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1154 struct iwl_fw_bcast_mac *bcast_mac;
1155 int i;
1156
1157 if (WARN_ON(mvmvif->id >= ARRAY_SIZE(cmd->macs)))
1158 return;
1159
1160 bcast_mac = &cmd->macs[mvmvif->id];
1161
1162 /* enable filtering only for associated stations */
1163 if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc)
1164 return;
1165
1166 bcast_mac->default_discard = 1;
1167
1168 /* copy all configured filters */
1169 for (i = 0; mvm->bcast_filters[i].attrs[0].mask; i++) {
1170 /*
1171 * Make sure we don't exceed our filters limit.
1172 * if there is still a valid filter to be configured,
1173 * be on the safe side and just allow bcast for this mac.
1174 */
1175 if (WARN_ON_ONCE(data->current_filter >=
1176 ARRAY_SIZE(cmd->filters))) {
1177 bcast_mac->default_discard = 0;
1178 bcast_mac->attached_filters = 0;
1179 break;
1180 }
1181
1182 iwl_mvm_set_bcast_filter(vif,
1183 &mvm->bcast_filters[i],
1184 &cmd->filters[data->current_filter]);
1185
1186 /* skip current filter if it contains no attributes */
1187 if (!cmd->filters[data->current_filter].num_attrs)
1188 continue;
1189
1190 /* attach the filter to current mac */
1191 bcast_mac->attached_filters |=
1192 cpu_to_le16(BIT(data->current_filter));
1193
1194 data->current_filter++;
1195 }
1196 }
1197
1198 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm *mvm,
1199 struct iwl_bcast_filter_cmd *cmd)
1200 {
1201 struct iwl_bcast_iter_data iter_data = {
1202 .mvm = mvm,
1203 .cmd = cmd,
1204 };
1205
1206 memset(cmd, 0, sizeof(*cmd));
1207 cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
1208 cmd->max_macs = ARRAY_SIZE(cmd->macs);
1209
1210 #ifdef CONFIG_IWLWIFI_DEBUGFS
1211 /* use debugfs filters/macs if override is configured */
1212 if (mvm->dbgfs_bcast_filtering.override) {
1213 memcpy(cmd->filters, &mvm->dbgfs_bcast_filtering.cmd.filters,
1214 sizeof(cmd->filters));
1215 memcpy(cmd->macs, &mvm->dbgfs_bcast_filtering.cmd.macs,
1216 sizeof(cmd->macs));
1217 return true;
1218 }
1219 #endif
1220
1221 /* if no filters are configured, do nothing */
1222 if (!mvm->bcast_filters)
1223 return false;
1224
1225 /* configure and attach these filters for each associated sta vif */
1226 ieee80211_iterate_active_interfaces(
1227 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1228 iwl_mvm_bcast_filter_iterator, &iter_data);
1229
1230 return true;
1231 }
1232 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1233 struct ieee80211_vif *vif)
1234 {
1235 struct iwl_bcast_filter_cmd cmd;
1236
1237 if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_BCAST_FILTERING))
1238 return 0;
1239
1240 /* bcast filtering isn't supported for P2P client */
1241 if (vif->p2p)
1242 return 0;
1243
1244 if (!iwl_mvm_bcast_filter_build_cmd(mvm, &cmd))
1245 return 0;
1246
1247 return iwl_mvm_send_cmd_pdu(mvm, BCAST_FILTER_CMD, 0,
1248 sizeof(cmd), &cmd);
1249 }
1250 #else
1251 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm *mvm,
1252 struct ieee80211_vif *vif)
1253 {
1254 return 0;
1255 }
1256 #endif
1257
1258 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
1259 struct ieee80211_vif *vif,
1260 struct ieee80211_bss_conf *bss_conf,
1261 u32 changes)
1262 {
1263 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1264 int ret;
1265
1266 /*
1267 * Re-calculate the tsf id, as the master-slave relations depend on the
1268 * beacon interval, which was not known when the station interface was
1269 * added.
1270 */
1271 if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc)
1272 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1273
1274 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false);
1275 if (ret)
1276 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1277
1278 if (changes & BSS_CHANGED_ASSOC) {
1279 if (bss_conf->assoc) {
1280 /* add quota for this interface */
1281 ret = iwl_mvm_update_quotas(mvm, vif);
1282 if (ret) {
1283 IWL_ERR(mvm, "failed to update quotas\n");
1284 return;
1285 }
1286
1287 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
1288 &mvm->status)) {
1289 /*
1290 * If we're restarting then the firmware will
1291 * obviously have lost synchronisation with
1292 * the AP. It will attempt to synchronise by
1293 * itself, but we can make it more reliable by
1294 * scheduling a session protection time event.
1295 *
1296 * The firmware needs to receive a beacon to
1297 * catch up with synchronisation, use 110% of
1298 * the beacon interval.
1299 *
1300 * Set a large maximum delay to allow for more
1301 * than a single interface.
1302 */
1303 u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
1304 iwl_mvm_protect_session(mvm, vif, dur, dur,
1305 5 * dur);
1306 }
1307
1308 iwl_mvm_sf_update(mvm, vif, false);
1309 iwl_mvm_power_vif_assoc(mvm, vif);
1310 if (vif->p2p)
1311 iwl_mvm_ref(mvm, IWL_MVM_REF_P2P_CLIENT);
1312 } else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
1313 /*
1314 * If update fails - SF might be running in associated
1315 * mode while disassociated - which is forbidden.
1316 */
1317 WARN_ONCE(iwl_mvm_sf_update(mvm, vif, false),
1318 "Failed to update SF upon disassociation\n");
1319
1320 /* remove AP station now that the MAC is unassoc */
1321 ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
1322 if (ret)
1323 IWL_ERR(mvm, "failed to remove AP station\n");
1324
1325 if (mvm->d0i3_ap_sta_id == mvmvif->ap_sta_id)
1326 mvm->d0i3_ap_sta_id = IWL_MVM_STATION_COUNT;
1327 mvmvif->ap_sta_id = IWL_MVM_STATION_COUNT;
1328 /* remove quota for this interface */
1329 ret = iwl_mvm_update_quotas(mvm, NULL);
1330 if (ret)
1331 IWL_ERR(mvm, "failed to update quotas\n");
1332
1333 if (vif->p2p)
1334 iwl_mvm_unref(mvm, IWL_MVM_REF_P2P_CLIENT);
1335 }
1336
1337 iwl_mvm_recalc_multicast(mvm);
1338 iwl_mvm_configure_bcast_filter(mvm, vif);
1339
1340 /* reset rssi values */
1341 mvmvif->bf_data.ave_beacon_signal = 0;
1342
1343 iwl_mvm_bt_coex_vif_change(mvm);
1344 iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
1345 IEEE80211_SMPS_AUTOMATIC);
1346 } else if (changes & BSS_CHANGED_BEACON_INFO) {
1347 /*
1348 * We received a beacon _after_ association so
1349 * remove the session protection.
1350 */
1351 iwl_mvm_remove_time_event(mvm, mvmvif,
1352 &mvmvif->time_event_data);
1353 iwl_mvm_sf_update(mvm, vif, false);
1354 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1355 } else if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS |
1356 BSS_CHANGED_QOS)) {
1357 ret = iwl_mvm_power_update_mac(mvm);
1358 if (ret)
1359 IWL_ERR(mvm, "failed to update power mode\n");
1360 }
1361 if (changes & BSS_CHANGED_TXPOWER) {
1362 IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d\n",
1363 bss_conf->txpower);
1364 iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
1365 }
1366
1367 if (changes & BSS_CHANGED_CQM) {
1368 IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
1369 /* reset cqm events tracking */
1370 mvmvif->bf_data.last_cqm_event = 0;
1371 if (mvmvif->bf_data.bf_enabled) {
1372 ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1373 if (ret)
1374 IWL_ERR(mvm,
1375 "failed to update CQM thresholds\n");
1376 }
1377 }
1378
1379 if (changes & BSS_CHANGED_ARP_FILTER) {
1380 IWL_DEBUG_MAC80211(mvm, "arp filter changed\n");
1381 iwl_mvm_configure_bcast_filter(mvm, vif);
1382 }
1383 }
1384
1385 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
1386 struct ieee80211_vif *vif)
1387 {
1388 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1389 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1390 int ret;
1391
1392 mutex_lock(&mvm->mutex);
1393
1394 /* Send the beacon template */
1395 ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
1396 if (ret)
1397 goto out_unlock;
1398
1399 /*
1400 * Re-calculate the tsf id, as the master-slave relations depend on the
1401 * beacon interval, which was not known when the AP interface was added.
1402 */
1403 if (vif->type == NL80211_IFTYPE_AP)
1404 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
1405
1406 /* Add the mac context */
1407 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1408 if (ret)
1409 goto out_unlock;
1410
1411 /* Perform the binding */
1412 ret = iwl_mvm_binding_add_vif(mvm, vif);
1413 if (ret)
1414 goto out_remove;
1415
1416 /* Send the bcast station. At this stage the TBTT and DTIM time events
1417 * are added and applied to the scheduler */
1418 ret = iwl_mvm_send_bcast_sta(mvm, vif, &mvmvif->bcast_sta);
1419 if (ret)
1420 goto out_unbind;
1421
1422 /* must be set before quota calculations */
1423 mvmvif->ap_ibss_active = true;
1424
1425 /* power updated needs to be done before quotas */
1426 iwl_mvm_power_update_mac(mvm);
1427
1428 ret = iwl_mvm_update_quotas(mvm, vif);
1429 if (ret)
1430 goto out_quota_failed;
1431
1432 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1433 if (vif->p2p && mvm->p2p_device_vif)
1434 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false);
1435
1436 iwl_mvm_ref(mvm, IWL_MVM_REF_AP_IBSS);
1437
1438 iwl_mvm_bt_coex_vif_change(mvm);
1439
1440 mutex_unlock(&mvm->mutex);
1441 return 0;
1442
1443 out_quota_failed:
1444 iwl_mvm_power_update_mac(mvm);
1445 mvmvif->ap_ibss_active = false;
1446 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1447 out_unbind:
1448 iwl_mvm_binding_remove_vif(mvm, vif);
1449 out_remove:
1450 iwl_mvm_mac_ctxt_remove(mvm, vif);
1451 out_unlock:
1452 mutex_unlock(&mvm->mutex);
1453 return ret;
1454 }
1455
1456 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
1457 struct ieee80211_vif *vif)
1458 {
1459 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1460 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1461
1462 iwl_mvm_prepare_mac_removal(mvm, vif);
1463
1464 mutex_lock(&mvm->mutex);
1465
1466 mvmvif->ap_ibss_active = false;
1467
1468 iwl_mvm_bt_coex_vif_change(mvm);
1469
1470 iwl_mvm_unref(mvm, IWL_MVM_REF_AP_IBSS);
1471
1472 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1473 if (vif->p2p && mvm->p2p_device_vif)
1474 iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false);
1475
1476 iwl_mvm_update_quotas(mvm, NULL);
1477 iwl_mvm_send_rm_bcast_sta(mvm, &mvmvif->bcast_sta);
1478 iwl_mvm_binding_remove_vif(mvm, vif);
1479
1480 iwl_mvm_power_update_mac(mvm);
1481
1482 iwl_mvm_mac_ctxt_remove(mvm, vif);
1483
1484 mutex_unlock(&mvm->mutex);
1485 }
1486
1487 static void
1488 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
1489 struct ieee80211_vif *vif,
1490 struct ieee80211_bss_conf *bss_conf,
1491 u32 changes)
1492 {
1493 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1494
1495 /* Changes will be applied when the AP/IBSS is started */
1496 if (!mvmvif->ap_ibss_active)
1497 return;
1498
1499 if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
1500 BSS_CHANGED_BANDWIDTH) &&
1501 iwl_mvm_mac_ctxt_changed(mvm, vif, false))
1502 IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
1503
1504 /* Need to send a new beacon template to the FW */
1505 if (changes & BSS_CHANGED_BEACON &&
1506 iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
1507 IWL_WARN(mvm, "Failed updating beacon data\n");
1508 }
1509
1510 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
1511 struct ieee80211_vif *vif,
1512 struct ieee80211_bss_conf *bss_conf,
1513 u32 changes)
1514 {
1515 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1516
1517 mutex_lock(&mvm->mutex);
1518
1519 if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
1520 iwl_mvm_sched_scan_stop(mvm, true);
1521
1522 switch (vif->type) {
1523 case NL80211_IFTYPE_STATION:
1524 iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
1525 break;
1526 case NL80211_IFTYPE_AP:
1527 case NL80211_IFTYPE_ADHOC:
1528 iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
1529 break;
1530 default:
1531 /* shouldn't happen */
1532 WARN_ON_ONCE(1);
1533 }
1534
1535 mutex_unlock(&mvm->mutex);
1536 }
1537
1538 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
1539 struct ieee80211_vif *vif,
1540 struct cfg80211_scan_request *req)
1541 {
1542 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1543 int ret;
1544
1545 if (req->n_channels == 0 || req->n_channels > MAX_NUM_SCAN_CHANNELS)
1546 return -EINVAL;
1547
1548 mutex_lock(&mvm->mutex);
1549
1550 switch (mvm->scan_status) {
1551 case IWL_MVM_SCAN_SCHED:
1552 ret = iwl_mvm_sched_scan_stop(mvm, true);
1553 if (ret) {
1554 ret = -EBUSY;
1555 goto out;
1556 }
1557 break;
1558 case IWL_MVM_SCAN_NONE:
1559 break;
1560 default:
1561 ret = -EBUSY;
1562 goto out;
1563 }
1564
1565 iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
1566
1567 ret = iwl_mvm_scan_request(mvm, vif, req);
1568 if (ret)
1569 iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN);
1570 out:
1571 mutex_unlock(&mvm->mutex);
1572 /* make sure to flush the Rx handler before the next scan arrives */
1573 iwl_mvm_wait_for_async_handlers(mvm);
1574 return ret;
1575 }
1576
1577 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
1578 struct ieee80211_vif *vif)
1579 {
1580 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1581
1582 mutex_lock(&mvm->mutex);
1583
1584 iwl_mvm_cancel_scan(mvm);
1585
1586 mutex_unlock(&mvm->mutex);
1587 }
1588
1589 static void
1590 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
1591 struct ieee80211_sta *sta, u16 tids,
1592 int num_frames,
1593 enum ieee80211_frame_release_type reason,
1594 bool more_data)
1595 {
1596 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1597
1598 /* Called when we need to transmit (a) frame(s) from mac80211 */
1599
1600 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1601 tids, more_data, false);
1602 }
1603
1604 static void
1605 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
1606 struct ieee80211_sta *sta, u16 tids,
1607 int num_frames,
1608 enum ieee80211_frame_release_type reason,
1609 bool more_data)
1610 {
1611 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1612
1613 /* Called when we need to transmit (a) frame(s) from agg queue */
1614
1615 iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
1616 tids, more_data, true);
1617 }
1618
1619 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
1620 struct ieee80211_vif *vif,
1621 enum sta_notify_cmd cmd,
1622 struct ieee80211_sta *sta)
1623 {
1624 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1625 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1626 int tid;
1627
1628 switch (cmd) {
1629 case STA_NOTIFY_SLEEP:
1630 if (atomic_read(&mvm->pending_frames[mvmsta->sta_id]) > 0)
1631 ieee80211_sta_block_awake(hw, sta, true);
1632 spin_lock_bh(&mvmsta->lock);
1633 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1634 struct iwl_mvm_tid_data *tid_data;
1635
1636 tid_data = &mvmsta->tid_data[tid];
1637 if (tid_data->state != IWL_AGG_ON &&
1638 tid_data->state != IWL_EMPTYING_HW_QUEUE_DELBA)
1639 continue;
1640 if (iwl_mvm_tid_queued(tid_data) == 0)
1641 continue;
1642 ieee80211_sta_set_buffered(sta, tid, true);
1643 }
1644 spin_unlock_bh(&mvmsta->lock);
1645 /*
1646 * The fw updates the STA to be asleep. Tx packets on the Tx
1647 * queues to this station will not be transmitted. The fw will
1648 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1649 */
1650 break;
1651 case STA_NOTIFY_AWAKE:
1652 if (WARN_ON(mvmsta->sta_id == IWL_MVM_STATION_COUNT))
1653 break;
1654 iwl_mvm_sta_modify_ps_wake(mvm, sta);
1655 break;
1656 default:
1657 break;
1658 }
1659 }
1660
1661 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
1662 struct ieee80211_vif *vif,
1663 struct ieee80211_sta *sta)
1664 {
1665 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1666 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
1667
1668 /*
1669 * This is called before mac80211 does RCU synchronisation,
1670 * so here we already invalidate our internal RCU-protected
1671 * station pointer. The rest of the code will thus no longer
1672 * be able to find the station this way, and we don't rely
1673 * on further RCU synchronisation after the sta_state()
1674 * callback deleted the station.
1675 */
1676 mutex_lock(&mvm->mutex);
1677 if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
1678 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
1679 ERR_PTR(-ENOENT));
1680 mutex_unlock(&mvm->mutex);
1681 }
1682
1683 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
1684 struct ieee80211_vif *vif,
1685 struct ieee80211_sta *sta,
1686 enum ieee80211_sta_state old_state,
1687 enum ieee80211_sta_state new_state)
1688 {
1689 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1690 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1691 int ret;
1692
1693 IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
1694 sta->addr, old_state, new_state);
1695
1696 /* this would be a mac80211 bug ... but don't crash */
1697 if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
1698 return -EINVAL;
1699
1700 /* if a STA is being removed, reuse its ID */
1701 flush_work(&mvm->sta_drained_wk);
1702
1703 mutex_lock(&mvm->mutex);
1704 if (old_state == IEEE80211_STA_NOTEXIST &&
1705 new_state == IEEE80211_STA_NONE) {
1706 /*
1707 * Firmware bug - it'll crash if the beacon interval is less
1708 * than 16. We can't avoid connecting at all, so refuse the
1709 * station state change, this will cause mac80211 to abandon
1710 * attempts to connect to this AP, and eventually wpa_s will
1711 * blacklist the AP...
1712 */
1713 if (vif->type == NL80211_IFTYPE_STATION &&
1714 vif->bss_conf.beacon_int < 16) {
1715 IWL_ERR(mvm,
1716 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1717 sta->addr, vif->bss_conf.beacon_int);
1718 ret = -EINVAL;
1719 goto out_unlock;
1720 }
1721 ret = iwl_mvm_add_sta(mvm, vif, sta);
1722 } else if (old_state == IEEE80211_STA_NONE &&
1723 new_state == IEEE80211_STA_AUTH) {
1724 /*
1725 * EBS may be disabled due to previous failures reported by FW.
1726 * Reset EBS status here assuming environment has been changed.
1727 */
1728 mvm->last_ebs_successful = true;
1729 ret = 0;
1730 } else if (old_state == IEEE80211_STA_AUTH &&
1731 new_state == IEEE80211_STA_ASSOC) {
1732 ret = iwl_mvm_update_sta(mvm, vif, sta);
1733 if (ret == 0)
1734 iwl_mvm_rs_rate_init(mvm, sta,
1735 mvmvif->phy_ctxt->channel->band,
1736 true);
1737 } else if (old_state == IEEE80211_STA_ASSOC &&
1738 new_state == IEEE80211_STA_AUTHORIZED) {
1739 /* enable beacon filtering */
1740 WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
1741 ret = 0;
1742 } else if (old_state == IEEE80211_STA_AUTHORIZED &&
1743 new_state == IEEE80211_STA_ASSOC) {
1744 /* disable beacon filtering */
1745 WARN_ON(iwl_mvm_disable_beacon_filter(mvm, vif, 0));
1746 ret = 0;
1747 } else if (old_state == IEEE80211_STA_ASSOC &&
1748 new_state == IEEE80211_STA_AUTH) {
1749 ret = 0;
1750 } else if (old_state == IEEE80211_STA_AUTH &&
1751 new_state == IEEE80211_STA_NONE) {
1752 ret = 0;
1753 } else if (old_state == IEEE80211_STA_NONE &&
1754 new_state == IEEE80211_STA_NOTEXIST) {
1755 ret = iwl_mvm_rm_sta(mvm, vif, sta);
1756 } else {
1757 ret = -EIO;
1758 }
1759 out_unlock:
1760 mutex_unlock(&mvm->mutex);
1761
1762 return ret;
1763 }
1764
1765 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
1766 {
1767 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1768
1769 mvm->rts_threshold = value;
1770
1771 return 0;
1772 }
1773
1774 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
1775 struct ieee80211_vif *vif,
1776 struct ieee80211_sta *sta, u32 changed)
1777 {
1778 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1779
1780 if (vif->type == NL80211_IFTYPE_STATION &&
1781 changed & IEEE80211_RC_NSS_CHANGED)
1782 iwl_mvm_sf_update(mvm, vif, false);
1783 }
1784
1785 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
1786 struct ieee80211_vif *vif, u16 ac,
1787 const struct ieee80211_tx_queue_params *params)
1788 {
1789 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1790 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1791
1792 mvmvif->queue_params[ac] = *params;
1793
1794 /*
1795 * No need to update right away, we'll get BSS_CHANGED_QOS
1796 * The exception is P2P_DEVICE interface which needs immediate update.
1797 */
1798 if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1799 int ret;
1800
1801 mutex_lock(&mvm->mutex);
1802 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false);
1803 mutex_unlock(&mvm->mutex);
1804 return ret;
1805 }
1806 return 0;
1807 }
1808
1809 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
1810 struct ieee80211_vif *vif)
1811 {
1812 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1813 u32 duration = min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS,
1814 200 + vif->bss_conf.beacon_int);
1815 u32 min_duration = min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS,
1816 100 + vif->bss_conf.beacon_int);
1817
1818 if (WARN_ON_ONCE(vif->bss_conf.assoc))
1819 return;
1820
1821 mutex_lock(&mvm->mutex);
1822 /* Try really hard to protect the session and hear a beacon */
1823 iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
1824 mutex_unlock(&mvm->mutex);
1825 }
1826
1827 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
1828 struct ieee80211_vif *vif,
1829 struct cfg80211_sched_scan_request *req,
1830 struct ieee80211_sched_scan_ies *ies)
1831 {
1832 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1833 int ret;
1834
1835 mutex_lock(&mvm->mutex);
1836
1837 if (!iwl_mvm_is_idle(mvm)) {
1838 ret = -EBUSY;
1839 goto out;
1840 }
1841
1842 switch (mvm->scan_status) {
1843 case IWL_MVM_SCAN_OS:
1844 IWL_DEBUG_SCAN(mvm, "Stopping previous scan for sched_scan\n");
1845 ret = iwl_mvm_cancel_scan(mvm);
1846 if (ret) {
1847 ret = -EBUSY;
1848 goto out;
1849 }
1850
1851 /*
1852 * iwl_mvm_rx_scan_complete() will be called soon but will
1853 * not reset the scan status as it won't be IWL_MVM_SCAN_OS
1854 * any more since we queue the next scan immediately (below).
1855 * We make sure it is called before the next scan starts by
1856 * flushing the async-handlers work.
1857 */
1858 break;
1859 case IWL_MVM_SCAN_NONE:
1860 break;
1861 default:
1862 ret = -EBUSY;
1863 goto out;
1864 }
1865
1866 mvm->scan_status = IWL_MVM_SCAN_SCHED;
1867
1868 ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
1869 if (ret)
1870 goto err;
1871
1872 ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
1873 if (ret)
1874 goto err;
1875
1876 ret = iwl_mvm_sched_scan_start(mvm, req);
1877 if (!ret)
1878 goto out;
1879 err:
1880 mvm->scan_status = IWL_MVM_SCAN_NONE;
1881 out:
1882 mutex_unlock(&mvm->mutex);
1883 /* make sure to flush the Rx handler before the next scan arrives */
1884 iwl_mvm_wait_for_async_handlers(mvm);
1885 return ret;
1886 }
1887
1888 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
1889 struct ieee80211_vif *vif)
1890 {
1891 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1892 int ret;
1893
1894 mutex_lock(&mvm->mutex);
1895 ret = iwl_mvm_sched_scan_stop(mvm, false);
1896 mutex_unlock(&mvm->mutex);
1897 iwl_mvm_wait_for_async_handlers(mvm);
1898
1899 return ret;
1900 }
1901
1902 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
1903 enum set_key_cmd cmd,
1904 struct ieee80211_vif *vif,
1905 struct ieee80211_sta *sta,
1906 struct ieee80211_key_conf *key)
1907 {
1908 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1909 int ret;
1910
1911 if (iwlwifi_mod_params.sw_crypto) {
1912 IWL_DEBUG_MAC80211(mvm, "leave - hwcrypto disabled\n");
1913 return -EOPNOTSUPP;
1914 }
1915
1916 switch (key->cipher) {
1917 case WLAN_CIPHER_SUITE_TKIP:
1918 key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
1919 /* fall-through */
1920 case WLAN_CIPHER_SUITE_CCMP:
1921 key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
1922 break;
1923 case WLAN_CIPHER_SUITE_AES_CMAC:
1924 WARN_ON_ONCE(!(hw->flags & IEEE80211_HW_MFP_CAPABLE));
1925 break;
1926 case WLAN_CIPHER_SUITE_WEP40:
1927 case WLAN_CIPHER_SUITE_WEP104:
1928 /*
1929 * Support for TX only, at least for now, so accept
1930 * the key and do nothing else. Then mac80211 will
1931 * pass it for TX but we don't have to use it for RX.
1932 */
1933 return 0;
1934 default:
1935 /* currently FW supports only one optional cipher scheme */
1936 if (hw->n_cipher_schemes &&
1937 hw->cipher_schemes->cipher == key->cipher)
1938 key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
1939 else
1940 return -EOPNOTSUPP;
1941 }
1942
1943 mutex_lock(&mvm->mutex);
1944
1945 switch (cmd) {
1946 case SET_KEY:
1947 if ((vif->type == NL80211_IFTYPE_ADHOC ||
1948 vif->type == NL80211_IFTYPE_AP) && !sta) {
1949 /*
1950 * GTK on AP interface is a TX-only key, return 0;
1951 * on IBSS they're per-station and because we're lazy
1952 * we don't support them for RX, so do the same.
1953 */
1954 ret = 0;
1955 key->hw_key_idx = STA_KEY_IDX_INVALID;
1956 break;
1957 }
1958
1959 IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
1960 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, false);
1961 if (ret) {
1962 IWL_WARN(mvm, "set key failed\n");
1963 /*
1964 * can't add key for RX, but we don't need it
1965 * in the device for TX so still return 0
1966 */
1967 key->hw_key_idx = STA_KEY_IDX_INVALID;
1968 ret = 0;
1969 }
1970
1971 break;
1972 case DISABLE_KEY:
1973 if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
1974 ret = 0;
1975 break;
1976 }
1977
1978 IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
1979 ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
1980 break;
1981 default:
1982 ret = -EINVAL;
1983 }
1984
1985 mutex_unlock(&mvm->mutex);
1986 return ret;
1987 }
1988
1989 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
1990 struct ieee80211_vif *vif,
1991 struct ieee80211_key_conf *keyconf,
1992 struct ieee80211_sta *sta,
1993 u32 iv32, u16 *phase1key)
1994 {
1995 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1996
1997 if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
1998 return;
1999
2000 iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
2001 }
2002
2003
2004 static int iwl_mvm_roc(struct ieee80211_hw *hw,
2005 struct ieee80211_vif *vif,
2006 struct ieee80211_channel *channel,
2007 int duration,
2008 enum ieee80211_roc_type type)
2009 {
2010 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2011 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2012 struct cfg80211_chan_def chandef;
2013 struct iwl_mvm_phy_ctxt *phy_ctxt;
2014 int ret, i;
2015
2016 IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
2017 duration, type);
2018
2019 if (vif->type != NL80211_IFTYPE_P2P_DEVICE) {
2020 IWL_ERR(mvm, "vif isn't a P2P_DEVICE: %d\n", vif->type);
2021 return -EINVAL;
2022 }
2023
2024 mutex_lock(&mvm->mutex);
2025
2026 for (i = 0; i < NUM_PHY_CTX; i++) {
2027 phy_ctxt = &mvm->phy_ctxts[i];
2028 if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
2029 continue;
2030
2031 if (phy_ctxt->ref && channel == phy_ctxt->channel) {
2032 /*
2033 * Unbind the P2P_DEVICE from the current PHY context,
2034 * and if the PHY context is not used remove it.
2035 */
2036 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2037 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2038 goto out_unlock;
2039
2040 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2041
2042 /* Bind the P2P_DEVICE to the current PHY Context */
2043 mvmvif->phy_ctxt = phy_ctxt;
2044
2045 ret = iwl_mvm_binding_add_vif(mvm, vif);
2046 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2047 goto out_unlock;
2048
2049 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2050 goto schedule_time_event;
2051 }
2052 }
2053
2054 /* Need to update the PHY context only if the ROC channel changed */
2055 if (channel == mvmvif->phy_ctxt->channel)
2056 goto schedule_time_event;
2057
2058 cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
2059
2060 /*
2061 * Change the PHY context configuration as it is currently referenced
2062 * only by the P2P Device MAC
2063 */
2064 if (mvmvif->phy_ctxt->ref == 1) {
2065 ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
2066 &chandef, 1, 1);
2067 if (ret)
2068 goto out_unlock;
2069 } else {
2070 /*
2071 * The PHY context is shared with other MACs. Need to remove the
2072 * P2P Device from the binding, allocate an new PHY context and
2073 * create a new binding
2074 */
2075 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2076 if (!phy_ctxt) {
2077 ret = -ENOSPC;
2078 goto out_unlock;
2079 }
2080
2081 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
2082 1, 1);
2083 if (ret) {
2084 IWL_ERR(mvm, "Failed to change PHY context\n");
2085 goto out_unlock;
2086 }
2087
2088 /* Unbind the P2P_DEVICE from the current PHY context */
2089 ret = iwl_mvm_binding_remove_vif(mvm, vif);
2090 if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
2091 goto out_unlock;
2092
2093 iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
2094
2095 /* Bind the P2P_DEVICE to the new allocated PHY context */
2096 mvmvif->phy_ctxt = phy_ctxt;
2097
2098 ret = iwl_mvm_binding_add_vif(mvm, vif);
2099 if (WARN(ret, "Failed binding P2P_DEVICE\n"))
2100 goto out_unlock;
2101
2102 iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
2103 }
2104
2105 schedule_time_event:
2106 /* Schedule the time events */
2107 ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
2108
2109 out_unlock:
2110 mutex_unlock(&mvm->mutex);
2111 IWL_DEBUG_MAC80211(mvm, "leave\n");
2112 return ret;
2113 }
2114
2115 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw)
2116 {
2117 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2118
2119 IWL_DEBUG_MAC80211(mvm, "enter\n");
2120
2121 mutex_lock(&mvm->mutex);
2122 iwl_mvm_stop_p2p_roc(mvm);
2123 mutex_unlock(&mvm->mutex);
2124
2125 IWL_DEBUG_MAC80211(mvm, "leave\n");
2126 return 0;
2127 }
2128
2129 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
2130 struct ieee80211_chanctx_conf *ctx)
2131 {
2132 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2133 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2134 struct iwl_mvm_phy_ctxt *phy_ctxt;
2135 int ret;
2136
2137 IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
2138
2139 mutex_lock(&mvm->mutex);
2140 phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
2141 if (!phy_ctxt) {
2142 ret = -ENOSPC;
2143 goto out;
2144 }
2145
2146 ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2147 ctx->rx_chains_static,
2148 ctx->rx_chains_dynamic);
2149 if (ret) {
2150 IWL_ERR(mvm, "Failed to add PHY context\n");
2151 goto out;
2152 }
2153
2154 iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
2155 *phy_ctxt_id = phy_ctxt->id;
2156 out:
2157 mutex_unlock(&mvm->mutex);
2158 return ret;
2159 }
2160
2161 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
2162 struct ieee80211_chanctx_conf *ctx)
2163 {
2164 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2165 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2166 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2167
2168 mutex_lock(&mvm->mutex);
2169 iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
2170 mutex_unlock(&mvm->mutex);
2171 }
2172
2173 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
2174 struct ieee80211_chanctx_conf *ctx,
2175 u32 changed)
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
2181 if (WARN_ONCE((phy_ctxt->ref > 1) &&
2182 (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
2183 IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
2184 IEEE80211_CHANCTX_CHANGE_RADAR |
2185 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
2186 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2187 phy_ctxt->ref, changed))
2188 return;
2189
2190 mutex_lock(&mvm->mutex);
2191 iwl_mvm_bt_coex_vif_change(mvm);
2192 iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->min_def,
2193 ctx->rx_chains_static,
2194 ctx->rx_chains_dynamic);
2195 mutex_unlock(&mvm->mutex);
2196 }
2197
2198 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
2199 struct ieee80211_vif *vif,
2200 struct ieee80211_chanctx_conf *ctx)
2201 {
2202 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2203 u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
2204 struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
2205 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2206 int ret;
2207
2208 mutex_lock(&mvm->mutex);
2209
2210 mvmvif->phy_ctxt = phy_ctxt;
2211
2212 switch (vif->type) {
2213 case NL80211_IFTYPE_AP:
2214 /* Unless it's a CSA flow we have nothing to do here */
2215 if (vif->csa_active) {
2216 mvmvif->ap_ibss_active = true;
2217 break;
2218 }
2219 case NL80211_IFTYPE_ADHOC:
2220 /*
2221 * The AP binding flow is handled as part of the start_ap flow
2222 * (in bss_info_changed), similarly for IBSS.
2223 */
2224 ret = 0;
2225 goto out_unlock;
2226 case NL80211_IFTYPE_STATION:
2227 case NL80211_IFTYPE_MONITOR:
2228 break;
2229 default:
2230 ret = -EINVAL;
2231 goto out_unlock;
2232 }
2233
2234 ret = iwl_mvm_binding_add_vif(mvm, vif);
2235 if (ret)
2236 goto out_unlock;
2237
2238 /*
2239 * Power state must be updated before quotas,
2240 * otherwise fw will complain.
2241 */
2242 iwl_mvm_power_update_mac(mvm);
2243
2244 /* Setting the quota at this stage is only required for monitor
2245 * interfaces. For the other types, the bss_info changed flow
2246 * will handle quota settings.
2247 */
2248 if (vif->type == NL80211_IFTYPE_MONITOR) {
2249 mvmvif->monitor_active = true;
2250 ret = iwl_mvm_update_quotas(mvm, vif);
2251 if (ret)
2252 goto out_remove_binding;
2253 }
2254
2255 /* Handle binding during CSA */
2256 if (vif->type == NL80211_IFTYPE_AP) {
2257 iwl_mvm_update_quotas(mvm, vif);
2258 iwl_mvm_mac_ctxt_changed(mvm, vif, false);
2259 }
2260
2261 goto out_unlock;
2262
2263 out_remove_binding:
2264 iwl_mvm_binding_remove_vif(mvm, vif);
2265 iwl_mvm_power_update_mac(mvm);
2266 out_unlock:
2267 mutex_unlock(&mvm->mutex);
2268 if (ret)
2269 mvmvif->phy_ctxt = NULL;
2270 return ret;
2271 }
2272
2273 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
2274 struct ieee80211_vif *vif,
2275 struct ieee80211_chanctx_conf *ctx)
2276 {
2277 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2278 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2279
2280 mutex_lock(&mvm->mutex);
2281
2282 iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
2283
2284 switch (vif->type) {
2285 case NL80211_IFTYPE_ADHOC:
2286 goto out_unlock;
2287 case NL80211_IFTYPE_MONITOR:
2288 mvmvif->monitor_active = false;
2289 iwl_mvm_update_quotas(mvm, NULL);
2290 break;
2291 case NL80211_IFTYPE_AP:
2292 /* This part is triggered only during CSA */
2293 if (!vif->csa_active || !mvmvif->ap_ibss_active)
2294 goto out_unlock;
2295
2296 mvmvif->ap_ibss_active = false;
2297 iwl_mvm_update_quotas(mvm, NULL);
2298 /*TODO: bt_coex notification here? */
2299 default:
2300 break;
2301 }
2302
2303 iwl_mvm_binding_remove_vif(mvm, vif);
2304
2305 out_unlock:
2306 mvmvif->phy_ctxt = NULL;
2307 iwl_mvm_power_update_mac(mvm);
2308 mutex_unlock(&mvm->mutex);
2309 }
2310
2311 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
2312 struct ieee80211_sta *sta,
2313 bool set)
2314 {
2315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2316 struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
2317
2318 if (!mvm_sta || !mvm_sta->vif) {
2319 IWL_ERR(mvm, "Station is not associated to a vif\n");
2320 return -EINVAL;
2321 }
2322
2323 return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
2324 }
2325
2326 #ifdef CONFIG_NL80211_TESTMODE
2327 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
2328 [IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
2329 [IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
2330 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
2331 };
2332
2333 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
2334 struct ieee80211_vif *vif,
2335 void *data, int len)
2336 {
2337 struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
2338 int err;
2339 u32 noa_duration;
2340
2341 err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
2342 if (err)
2343 return err;
2344
2345 if (!tb[IWL_MVM_TM_ATTR_CMD])
2346 return -EINVAL;
2347
2348 switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
2349 case IWL_MVM_TM_CMD_SET_NOA:
2350 if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
2351 !vif->bss_conf.enable_beacon ||
2352 !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
2353 return -EINVAL;
2354
2355 noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
2356 if (noa_duration >= vif->bss_conf.beacon_int)
2357 return -EINVAL;
2358
2359 mvm->noa_duration = noa_duration;
2360 mvm->noa_vif = vif;
2361
2362 return iwl_mvm_update_quotas(mvm, NULL);
2363 case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
2364 /* must be associated client vif - ignore authorized */
2365 if (!vif || vif->type != NL80211_IFTYPE_STATION ||
2366 !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
2367 !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
2368 return -EINVAL;
2369
2370 if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
2371 return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2372 return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
2373 }
2374
2375 return -EOPNOTSUPP;
2376 }
2377
2378 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
2379 struct ieee80211_vif *vif,
2380 void *data, int len)
2381 {
2382 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2383 int err;
2384
2385 mutex_lock(&mvm->mutex);
2386 err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
2387 mutex_unlock(&mvm->mutex);
2388
2389 return err;
2390 }
2391 #endif
2392
2393 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
2394 struct ieee80211_vif *vif,
2395 struct cfg80211_chan_def *chandef)
2396 {
2397 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2398
2399 mutex_lock(&mvm->mutex);
2400 if (WARN(mvm->csa_vif && mvm->csa_vif->csa_active,
2401 "Another CSA is already in progress"))
2402 goto out_unlock;
2403
2404 IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
2405 chandef->center_freq1);
2406 mvm->csa_vif = vif;
2407
2408 out_unlock:
2409 mutex_unlock(&mvm->mutex);
2410 }
2411
2412 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
2413 struct ieee80211_vif *vif, u32 queues, bool drop)
2414 {
2415 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2416 struct iwl_mvm_vif *mvmvif;
2417 struct iwl_mvm_sta *mvmsta;
2418
2419 if (!vif || vif->type != NL80211_IFTYPE_STATION)
2420 return;
2421
2422 mutex_lock(&mvm->mutex);
2423 mvmvif = iwl_mvm_vif_from_mac80211(vif);
2424 mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
2425
2426 if (WARN_ON_ONCE(!mvmsta))
2427 goto done;
2428
2429 if (drop) {
2430 if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
2431 IWL_ERR(mvm, "flush request fail\n");
2432 } else {
2433 iwl_trans_wait_tx_queue_empty(mvm->trans,
2434 mvmsta->tfd_queue_msk);
2435 }
2436 done:
2437 mutex_unlock(&mvm->mutex);
2438 }
2439
2440 const struct ieee80211_ops iwl_mvm_hw_ops = {
2441 .tx = iwl_mvm_mac_tx,
2442 .ampdu_action = iwl_mvm_mac_ampdu_action,
2443 .start = iwl_mvm_mac_start,
2444 .restart_complete = iwl_mvm_mac_restart_complete,
2445 .stop = iwl_mvm_mac_stop,
2446 .add_interface = iwl_mvm_mac_add_interface,
2447 .remove_interface = iwl_mvm_mac_remove_interface,
2448 .config = iwl_mvm_mac_config,
2449 .prepare_multicast = iwl_mvm_prepare_multicast,
2450 .configure_filter = iwl_mvm_configure_filter,
2451 .bss_info_changed = iwl_mvm_bss_info_changed,
2452 .hw_scan = iwl_mvm_mac_hw_scan,
2453 .cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
2454 .sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
2455 .sta_state = iwl_mvm_mac_sta_state,
2456 .sta_notify = iwl_mvm_mac_sta_notify,
2457 .allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
2458 .release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
2459 .set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
2460 .sta_rc_update = iwl_mvm_sta_rc_update,
2461 .conf_tx = iwl_mvm_mac_conf_tx,
2462 .mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
2463 .flush = iwl_mvm_mac_flush,
2464 .sched_scan_start = iwl_mvm_mac_sched_scan_start,
2465 .sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
2466 .set_key = iwl_mvm_mac_set_key,
2467 .update_tkip_key = iwl_mvm_mac_update_tkip_key,
2468 .remain_on_channel = iwl_mvm_roc,
2469 .cancel_remain_on_channel = iwl_mvm_cancel_roc,
2470 .add_chanctx = iwl_mvm_add_chanctx,
2471 .remove_chanctx = iwl_mvm_remove_chanctx,
2472 .change_chanctx = iwl_mvm_change_chanctx,
2473 .assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
2474 .unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
2475
2476 .start_ap = iwl_mvm_start_ap_ibss,
2477 .stop_ap = iwl_mvm_stop_ap_ibss,
2478 .join_ibss = iwl_mvm_start_ap_ibss,
2479 .leave_ibss = iwl_mvm_stop_ap_ibss,
2480
2481 .set_tim = iwl_mvm_set_tim,
2482
2483 .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
2484
2485 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
2486
2487 #ifdef CONFIG_PM_SLEEP
2488 /* look at d3.c */
2489 .suspend = iwl_mvm_suspend,
2490 .resume = iwl_mvm_resume,
2491 .set_wakeup = iwl_mvm_set_wakeup,
2492 .set_rekey_data = iwl_mvm_set_rekey_data,
2493 #if IS_ENABLED(CONFIG_IPV6)
2494 .ipv6_addr_change = iwl_mvm_ipv6_addr_change,
2495 #endif
2496 .set_default_unicast_key = iwl_mvm_set_default_unicast_key,
2497 #endif
2498 };
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